CN120144384B - Test fixture - Google Patents
Test fixtureInfo
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- CN120144384B CN120144384B CN202510629478.9A CN202510629478A CN120144384B CN 120144384 B CN120144384 B CN 120144384B CN 202510629478 A CN202510629478 A CN 202510629478A CN 120144384 B CN120144384 B CN 120144384B
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- air
- slot
- baffle
- rod
- group
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2294—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by remote test
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
本申请公开了一种测试治具，涉及服务器测试技术领域，包括本体和喷吹组件，本体具有插槽，插槽用于插接待测试的工件，本体设有与插槽连通的第一气孔，喷吹组件包括吹气件和挡板，吹气件设在本体，吹气件具有容纳有气体的气腔，在工件脱离插槽的过程中或脱离插槽后，挡板沿第一方向可移动地设在吹气件上且挡板具有连通位置，在连通位置，气腔与第一气孔连通以向插槽吹气。由于喷吹组件能够在工件完成测试后，对插槽进行吹气，从而将插槽内的灰尘吹出，实现了插槽的清洁，避免了灰尘在插槽内堆积而导致本体的触点接触不良的问题，保证对工件的测试结果的准确性。因此，可以解决插槽易发生堆积灰尘的技术问题，达到清洁插槽技术效果。
The present application discloses a test fixture, which relates to the field of server testing technology and includes a main body and a blowing assembly. The main body has a slot for inserting a workpiece to be tested. The main body is provided with a first air hole connected to the slot. The blowing assembly includes a blowing member and a baffle. The blowing member is provided on the main body. The blowing member has an air cavity containing gas. During or after the workpiece is removed from the slot, the baffle is movably provided on the blowing member along a first direction and has a connecting position. In the connecting position, the air cavity is connected to the first air hole to blow air into the slot. Since the blowing assembly can blow air into the slot after the workpiece is tested, dust in the slot is blown out, thereby cleaning the slot and avoiding the problem of dust accumulation in the slot causing poor contact of the main body's contacts, thereby ensuring the accuracy of the test results for the workpiece. Therefore, the technical problem of dust accumulation in the slot can be solved, and the technical effect of cleaning the slot can be achieved.
Description
Technical Field
The application relates to the technical field of server testing, in particular to a testing jig.
Background
Before the server is installed, performance test is required to be carried out on pcie cards, pcie cards are inserted into pcie slots of the test fixture, golden fingers of pcie cards are in contact with contacts in the slots to generate electric connection, and a test system connected with the test fixture is opened to test pcie cards. However, dust is easy to carry into the slot in the process of inserting the pcie card into the slot, and dust is accumulated in the slot to cause poor contact of the contacts, so that signal transmission is affected, and a test result is affected.
Disclosure of Invention
The application provides a test fixture, which at least solves the problem that dust is easy to accumulate in a slot due to the fact that dust is brought into the slot in the process of inserting a pcie card into the slot in the related art.
The application provides a test fixture, which comprises a body and a blowing component, wherein the body is provided with a slot, one side of the slot at least in a first direction is opened for being inserted with a workpiece to be tested, the body is provided with a first air hole communicated with the slot, the blowing component comprises a blowing piece and a baffle plate, the blowing piece is arranged on the body and is provided with an air cavity containing air, the baffle plate is movably arranged on the blowing piece along the first direction in the process of separating the workpiece from the slot or after separating the workpiece from the slot, and the baffle plate is provided with a communicating position, and in the communicating position, the air cavity is communicated with the first air hole to blow air to the slot.
According to the application, the blowing component can blow the slot after the workpiece is tested, so that dust in the slot is blown out, cleaning of the slot is realized, the problem of poor contact of the body caused by accumulation of dust in the slot is avoided, and the accuracy of a test result of the workpiece is ensured. Therefore, the technical problem that dust is easy to accumulate in the slot can be solved, and the technical effect of cleaning the slot is achieved.
Drawings
For a clearer description of embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic structural diagram of a test fixture according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a partial structure of a test fixture according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a body, a blowing assembly, a pull rod and a workpiece of a test fixture according to an embodiment of the present application;
Fig. 4 is a schematic cross-sectional structural diagram of a body and a blowing assembly of a test fixture according to an embodiment of the present application, where a baffle is located at an initial position;
Fig. 5 is a schematic structural diagram of a body, a connection assembly and a blowing assembly of a test fixture according to an embodiment of the present application, where a baffle is located at an initial position;
FIG. 6 is a schematic structural diagram of a body, a connection assembly, an air box and a baffle of a test fixture according to an embodiment of the present application;
FIG. 7 is an enlarged view of a portion of FIG. 5 at E;
Fig. 8 is a schematic structural diagram of a dust-proof component of a test fixture according to an embodiment of the present application.
Wherein the above figures include the following reference numerals:
100. Testing a jig;
1. The device comprises a body, 11, a slot, 12, a first air hole, 121, a first direction group, 122, a second direction group, 13, a chute, 14, a cover plate, 15, a body part, 16 and a supporting part;
2. The device comprises an injection assembly 21, an air blowing piece 211, an air cavity 212, an air tank 2121, a third air hole 2122, a yielding groove 213, a push plate 214, a one-way air inlet valve 215, a pushing piece 2151, a first push rod 21511, a first guide surface 21512, a first plane 2152, a second push rod 21521, a second guide surface 21522, a second plane 22, a baffle 221, a second air hole 2211, a first communication group 2212, a second communication group 222 and a containing groove;
3. The device comprises a moving assembly 31, a moving end 32, a vertical rod 33, a mounting plate 34, a micro motor 35, a screw rod 36, a sliding plate 37, clamping jaws 38 and a guide rod;
4. The connecting component, 41, the pressing plate, 42, the traction rope, 43, the auxiliary rod, 44, the telescopic inserted rod, 441, the outer rod, 4411, the movable groove, 442, the inner rod, 4421, the avoidance surface 443, the elastic piece, 45, the matching plate, 46 and the auxiliary block;
5. A pull rod;
6. The dustproof assembly 61, the telescopic piece 62, the dustproof plate 63, the fixed plate 64 and the adsorption plate;
200. A workpiece.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present application.
It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or communicate between the two elements. The terms "parallel", "perpendicular", "equal" include the stated case as well as the case similar to the stated case, the range of which is within an acceptable deviation range as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., limitations of the measurement system). For example, "parallel" includes absolute parallel and approximately parallel, where the range of acceptable deviation of approximately parallel may be, for example, within 5 ° of deviation, and "perpendicular" includes absolute perpendicular and approximately perpendicular, where the range of acceptable deviation of approximately perpendicular may also be, for example, within 5 ° of deviation. "equal" includes absolute equal and approximately equal, where the difference between the two, which may be equal, for example, is less than or equal to 5% of either of them within an acceptable deviation of approximately equal. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The present application will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present application.
The embodiment of the application provides a test fixture, which is described in detail by combining the structure and the working principle of the test fixture.
As shown in fig. 1 to 3, a test fixture 100 according to an embodiment of the present invention includes a body 1 and a blowing assembly 2. The body 1 has a slot 11, and the slot 11 is opened at least at one side in a first direction (for example, AB direction in fig. 1) for inserting the work 200 to be tested, the first direction being a depth direction of the slot 11, and the body 1 is provided with a first air hole 12 communicating with the slot 11. The blowing assembly 2 includes a blowing member 21 and a barrier 22, the blowing member 21 is provided to the body 1, the blowing member 21 has an air chamber 211 containing air, the barrier 22 is movably provided to the blowing member 21 in the first direction during or after the workpiece 200 to be tested is detached from the slot 11, and the barrier 22 has a communication position in which the air chamber 211 communicates with the first air hole 12 to blow air to the slot 11. In the non-communication position, the air cavity 211 is disconnected from the first air hole 12, i.e., the air cavity 211 is not in communication with the slot 11, and the first air hole 12 does not blow air into the slot 11.
After the body 1 completes the test of the workpiece 200, the workpiece 200 is pulled out of the slot 11 of the body 1, and the baffle 22 moves to the communication position along the first direction in the process that the workpiece 200 is separated from the slot 11 of the body 1 or after being separated from the slot 11 of the body 1, so that the air cavity 211 of the air blowing member 21 is communicated with the first air hole 12, and the air blowing member 21 blows air to the slot 11, thereby blowing out dust in the slot 11 and realizing the cleaning of the slot 11.
Therefore, after the workpiece 200 is tested, the test fixture 100 of the embodiment of the invention performs blowing cleaning on the slot 11, so that the problem of poor contact of the body 1 caused by dust accumulation in the slot 11 is avoided, and the accuracy of the test result of the workpiece 200 is ensured.
Specifically, as shown in fig. 2 and 3, the body 1 is provided with a first air hole 12 and a blowing assembly 2 on both sides of the slot 11 in the width direction.
In some embodiments, as shown in fig. 4 and 5, the baffle 22 is provided with a second air hole 221, and in this communication position, the air chamber 211 communicates with the first air hole 12 through the second air hole 221. During the movement of the shutter 22 in the first direction, the second air holes 221 move synchronously, and when the shutter 22 moves to the communication position, the second air holes 221 communicate the first air holes 12 with the air chamber 211, and the air in the air chamber 211 flows from the second air holes 221 to the first air holes 12 and then is blown from the first air holes 12 to the slot 11. When the shutter 22 is moved to the non-communication position, the second air hole 221 is not in communication with the first air hole 12 and/or the air cavity 211, and the air cavity 211 is disconnected from the first air hole 12.
In this connection position, the baffle 22 connects the air cavity 211 and the first air hole 12 by providing the second air hole 221, the second air hole 221 forms a closed connection path, so as to ensure the tightness of the connection between the air cavity 211 and the first air hole 12, ensure the stability of the air flow flowing from the air cavity 211 to the first air hole 12, reduce the air flow loss and pressure drop caused in the process of the air flow flowing from the air cavity 211 to the first air hole 12, and ensure the speed and flow rate of the air flow blowing from the first air hole 12 to the slot 11, thereby ensuring the soot blowing effect on the slot 11, and further ensuring the cleaning effect of the test fixture 100 of the embodiment of the invention on the slot.
In some embodiments, as shown in fig. 3 to 5, the first air holes 12 have a plurality, and the second air holes 221 have a plurality and are in one-to-one correspondence with the first air holes 12. The body 1 is provided with the plurality of first air holes 12, different first air holes 12 are not communicated, the specific positions of the slots 11 towards which different first air holes 12 face are different, and then the specific positions of the slots 11 towards which air blown out from the first air holes 12 face are different, so that the body 1 is provided with the plurality of first air holes 12 to blow air to different positions in the slots 11, the slots 11 can be blown all the time, dead cleaning angles are avoided, the soot blowing effect on the slots 11 is further improved, and the cleaning effect of the test fixture 100 on the slots is further improved.
In some embodiments, the plurality of first air holes 12 are divided into at least two groups and include a first direction group 121 and a second direction group 122, the first air holes 12 of the first direction group 121 extending in a direction away from the baffle 22 and being inclined toward the other side of the slot 11 in the first direction, the first air holes 12 of the second direction group 122 extending in a direction away from the baffle 22 and being inclined toward the opening of the slot 11, and the second direction group 122 being located on one side of the first direction group 121 away from the opening of the slot 11. As shown in fig. 4, the second direction group 122 is located on the B side of the first direction group 121 in the first direction. The plurality of second air holes 221 are divided into at least two groups and include a first communication group 2211 and a second communication group 2212, the first communication group 2211 corresponds to the first direction group 121, and the second communication group 2212 corresponds to the second direction group 122.
In this embodiment, as shown in fig. 3 and 4, the slot 11 is provided with an opening on the one side (a side) in the first direction, the slot 11 is provided with a slot bottom on the other side (B side) in the first direction, the slot bottom is provided with a contact (not shown in the figure) connected with the workpiece 200 to be tested, the first air holes 12 of the first direction group 121 face the contact, the first air holes 12 of the second direction group 122 face the opening of the slot 11, and the second direction group 122 is located on the side of the first direction group 121 adjacent to the contact. Then, when the first air hole 12 blows air to the slot 11, the first direction set 121 blows air to the contact at the bottom of the slot 11 to form an air flow to the bottom of the slot 11, blows dust from the bottom and the contact to separate the dust from the bottom of the slot 11, and the second direction set 122 blows air to the opening of the slot 11 to form an air flow to the outside of the slot 11, so that the dust is blown out of the slot 11, the dust is blown out of the slot 11 is ensured, the soot blowing effect to the slot 11 is further improved, and the cleaning effect of the test fixture 100 of the embodiment of the invention to the slot is improved.
The shutter 22 also has an initial position and a final position between which the shutter 22 is movable in the first direction, the communication position being located between the initial position and the final position. As shown in fig. 4, in the initial position, the distance between the second air holes 221 of the first communication group 2211 and the first air holes 12 of the first direction group 121 is smaller than the distance between the second air holes 221 of the second communication group 2212 and the first air holes 12 of the second direction group 122. During the process of the work 200 being separated from the slot 11 or after being separated from the slot 11, the shutter 22 is moved in the first direction from the initial position to the final position, passing through the communication position. Because the distance between the second air holes 221 of the first communication group 2211 and the first air holes 12 of the first direction group 121 is smaller than the distance between the second air holes 221 of the second communication group 2212 and the first air holes 12 of the second direction group 122 in the initial position, when the communication position is passed during the moving process from the initial position to the final position, the second air holes 221 of the first communication group 2211 are communicated with the first air holes 12 of the first direction group 121 to form the air flow towards the slot 11 bottom and the contact, and then the second air holes 221 of the second communication group 2212 are communicated with the second air holes 221 of the second direction group 122 to form the air flow towards the slot 11. Therefore, in the communication position, firstly, air is blown to the contact at the bottom of the slot 11, dust is blown from the bottom of the slot 11, and then air is blown to the opening of the slot 11, so that air flow outside the slot 11 is formed, the blown dust is favorable for blowing the blown dust outside the slot 11, the blowing of the dust from the slot 11 is ensured, the soot blowing effect on the slot 11 is further improved, and the cleaning effect of the test fixture 100 on the slot is further improved.
In some embodiments, the communication position includes a first communication position in which the first air holes 12 of the first direction group 121 communicate with the second air holes 221 of the first communication group 2211, the first air holes 12 of the second direction group 122 are disconnected from the second air holes 221 of the second communication group 2212, and a second communication position in which the first air holes 12 of the first direction group 121 are disconnected from the second air holes 221 of the first communication group 2211, and the first air holes 12 of the second direction group 122 communicate with the second air holes 221 of the second communication group 2212. In the process of moving the baffle 22 from the initial position to the final position, the baffle 22 reaches the first communication position and then reaches the second communication position, so that the air flow blowing to the bottom of the slot 11 and the air flow blowing to the opening of the slot 11 are respectively performed without direct interference, the speed and the flow of the air flow blowing to the bottom of the slot 11 by the first direction group 121 are not influenced, the dust blowing to the bottom of the slot 11 is ensured, the speed and the flow of the air flow blowing to the opening of the slot 11 by the second direction group 122 are not influenced, the dust is ensured to be blown out from the slot 11 as a whole, the soot blowing effect on the slot 11 is further improved, and the cleaning effect of the slot by the test fixture 100 in the embodiment of the invention is further improved.
Specifically, as shown in fig. 1 and 2, the body 1 includes a body portion 15 and a supporting portion 16, the body portion 15 is connected to the supporting portion 16, the supporting portion 16 supports the body portion 15 in an up-down direction, a slot 11 is provided in the body portion 15, and the body portion 15 is used for inserting a workpiece 200 to be tested.
Further, as shown in fig. 1 and 2, the test fixture 100 according to the embodiment of the present invention further includes a moving component 3. The moving assembly 3 has a moving end 31, the moving end 31 moves along the first direction between an inserting position and a disengaging position, the moving end 31 is used for installing the workpiece 200 to be tested to insert the workpiece 200 into the slot 11 at the inserting position and to separate the workpiece 200 from the slot 11 at the disengaging position, and the moving end 31 is connected with the baffle 22, so that the moving end 31 drives the baffle 22 to move along the first direction.
When the workpiece 200 to be tested is tested, the workpiece to be tested is firstly mounted on the moving end 31 of the moving assembly 3, the moving end 31 drives the workpiece to be tested to move from the disengaging position to the inserting position, so that the workpiece to be tested is in inserting fit with the slot 11, and then the workpiece to be tested is tested. After the test is completed, the moving end 31 drives the workpiece to be pulled out from the slot 11 to move to the disengaging position, and during the process that the workpiece is disengaged from the slot 11 or after the workpiece is disengaged from the slot 11, the moving end 31 drives the baffle 22 to move from the initial position to the final position along the first direction.
In the test fixture 100 of the embodiment of the invention, the moving component 3 drives the workpiece 200 to be inserted into and separated from the slot 11, and in the separation process, the moving component 3 drives the baffle 22 to move, so that the baffle 22 passes through the communication position, and the air blowing piece 21 is controlled to blow air into the slot 11. Therefore, the test fixture 100 of the embodiment of the invention not only realizes the insertion and extraction process of the workpiece 200, but also completes the movement of the baffle 22 from the initial position to the final position in the process of separating the workpiece from the slot by the moving assembly 3, ensures the synchronism of the movement of the baffle 22 and the separation process of the workpiece 200, ensures the timeliness of blowing the slot 11, increases the function of the moving assembly 3 in the test fixture 100 of the embodiment of the invention, simultaneously can omit a driving assembly which independently drives the baffle 22 to move from the initial position to the final position, and also omits the linkage control of the driving assembly and the moving end 31 for driving the insertion and extraction process of the workpiece 200, thereby being beneficial to reducing the equipment cost of the test fixture 100 of the embodiment of the invention.
Further, the disengagement position includes a first disengagement position and a second disengagement position, the second disengagement position is located between the first disengagement position and the plugging position, in the second disengagement position, the workpiece 200 is disengaged from the slot 11 and is adjacent to the opening of the slot 11, and after the moving end 31 drives the workpiece 200 to disengage from the slot 11 and in the process of moving from the second disengagement position to the first disengagement position, the moving end 31 drives the baffle 22 to move along the first direction. In other words, during the movement of the workpiece 200 after being separated from the slot 11, the moving end 31 drives the shutter 22 to move the shutter 22 from the initial position to the final position. That is, after the workpiece 200 is pulled out from the slot 11, the moving end 31 moves the shutter 22 past the communication position, where the air blowing member 21 blows air into the slot 11. Therefore, the test fixture 100 of the embodiment of the invention blows air to remove dust from the insertion groove 11 after the workpiece 200 is pulled out, so that the influence of the air flow and dust flow blocked by the workpiece 200 on the dust blowing effect in the dust blowing process is avoided.
In some embodiments, as shown in fig. 3-5, the blower 21 includes a gas box 212, a push plate 213, a one-way gas inlet valve 214, and a pusher 215. The air box 212 is provided on the body 1, the push plate 213 is movably provided in the air box 212 between the air blowing position and the air sucking position in a second direction (e.g., CD direction in the drawing), one side of the push plate 213 in the second direction (e.g., C side of the push plate 213 in fig. 4) and an inner wall surface of the air box 212 define the air outlet chamber 211, and the baffle 22 is located between the air chamber 211 and the first air hole 12, the second direction being perpendicular to the first direction. A one-way intake valve 214 is provided on the air box 212 in which the push plate 213 abuts or is adjacent to the baffle 22, and in which the push plate 213 is located on the side of the one-way intake valve 214 facing away from the baffle 22. The pushing member 215 is disposed on the other side of the push plate 213 in the second direction (for example, on the D side of the push plate 213 in fig. 4), the pushing member 215 is disposed on one side of the air box 212, the pushing member 215 is connected to the moving end 31, and the moving end 31 is driven to push the push plate 213 from the air suction position to the air blowing position during the movement from the second disengaging position to the first disengaging position. In other words, after the workpiece 200 is separated from the slot 11, the moving end 31 drives the pushing member 215 to push the push plate 213 to move from the air suction position to the air blowing position, the moving end 31 pushes the push plate 213 to squeeze the air cavity 211 through the pushing member 215, the air in the air cavity 211 is squeezed, and meanwhile, the moving end 31 drives the baffle 22 to move from the initial position to the final position, so that when the baffle 22 passes through the communication position, the air in the air cavity 211 flows to the first air hole 12 through the second air hole 221, and air blowing to the slot 11 is realized.
In the embodiment shown in fig. 3-5, the push plate 213 is in the suction position and the other side (D side) of the push plate 213 is in contact with the D side wall of the air box 212.
Wherein the second direction is the same as the width direction of the slot 11.
Therefore, the test fixture 100 of the embodiment of the invention realizes the blowing of the blowing member 21 by the moving assembly 3, further increases the functions of the moving assembly 3 in the test fixture 100 of the embodiment of the invention, and simultaneously, the blowing process of the blowing member 21 does not need air pumps, pulse electromagnetic valves and other blowing related equipment, thereby avoiding the condition of disordered test operation area pipelines caused by connecting air pipes while realizing automatic cleaning of the slots 11.
The pushing member 215 includes a first push rod 2151 and a second push rod 2152, one side (B side) of the first push rod 2151 in the first direction is a first guide surface 21511, the other side (a side) of the first push rod 2151 in the first direction is a first plane 21512, the second push rod 2152 is telescopically provided on the moving end 31, one side (B side) of the second push rod 2152 in the first direction is a second guide surface 21521, the other side (a side) of the second push rod 2152 in the first direction is a second plane 21522, and the first push rod 2151 and the second push rod 2152 are opposite in the first direction. During the movement of the moving end 31 from the first disengaged position to the second disengaged position, the second guide surface 21521 abuts against the first plane 21512 to push the second push rod 2152 to retract toward the moving end 31, and during the movement of the moving end 31 from the second disengaged position to the first disengaged position, the second plane 21522 abuts against the first guide surface 21511 to push the push plate 213 to move from the suction position to the blowing position.
The moving end 31 drives the workpiece 200 to move toward the slot 11, in which the moving end 31 moves from the first disengaging position to the second disengaging position, during which the second guiding surface 21521 of the second push rod 2152 faces the first plane 21512 of the first push rod 2151, because the second push rod 2152 is telescopically disposed on the moving end 31, when the moving end 31 moves to the position where the second guiding surface 21521 abuts against the first plane 21512 of the first push rod 2151, the second guiding surface 21521 is pressed by the first plane 21512, so that the second push rod 2152 retracts toward the moving end 31 until the second push rod 2152 is completely located between the first push rod 2151 and the moving end 31, thereby enabling the second push rod 2152 to continue to move toward the direction B, and when the moving end 31 moves to the second disengaging position, the second push rod 2152 is not pressed by the first push rod 2151 and extends out of the reset position, at which time the workpiece 200 is adjacent to the opening of the slot 11, and then the moving end 31 moves from the second moving end 31 to the second disengaging position until the second push rod 2152 is completely located between the first push rod 2151 and the second push rod 2152, and the second push rod 2152 is pushed into the slot 11, and the second push rod 2152 is pushed into the position.
The moving end 31 drives the workpiece 200 to be pulled out of the slot 11 (to the outside of the slot 11), namely, the moving end 31 moves from the inserting position to the second disengaging position, the distance between the second push rod 2152 and the first push rod 2151 is reduced, the moving end 31 moves from the second disengaging position to the first disengaging position, during the period that the second plane 21522 of the second push rod 2152 is abutted with the first guide surface 21511 of the first push rod 2151, the first guide surface 21511 is extruded by the second plane 21522, so that the first push rod 2151 moves towards the inner side of the air tank 212, the push plate 213 is pushed to extrude the air cavity 211, meanwhile, the moving end 31 drives the baffle 22 to move from the initial position to the final position, the baffle 22 reaches the first communicating position and then reaches the second communicating position, the first air hole 12 is communicated with the air cavity 211, the extruded air is discharged from the first air hole 12 and is blown towards the slot 11, and the blowing process of the blowing piece 21 is realized, and the baffle 22 gradually reaches the final position along with the approach of the moving end 31 to the first disengaging position, and the second push rod 2 gradually disengages from the first push rod 2151.
When the moving end 31 moves to the first disengaging position, the workpiece 200 is removed from the moving end 31, and the first push rod 2151 is operated to reset, namely, the first push rod 2151 is pulled towards the direction outside the air box 212 (for the first push rod 2151 shown in fig. 4 and 5, the first push rod 2151 is pulled towards the direction D, so that the first push rod 2151 moves to the air suction position to reset, and when the first push rod 2151 is pulled, the volume of the air cavity 211 is enlarged, and the air cavity 211 is filled with air through the unidirectional air inlet valve 214.
Specifically, the moving end 31 is provided with a groove (not shown in the figure), the end portion of the second push rod 2152 is provided with a first spring (not shown in the figure), the first spring is disposed at the bottom of the groove, and a part of the second push rod 2152 is located in the groove, so that when the second push rod 2152 is pressed, at least a part of the second push rod 2152 retracts into the groove, the first spring is deformed under pressure, and when the pressure applied to the second push rod 2152 is removed, the retracted part of the second push rod 2152 extends out of the groove under the action of the elastic force of the first spring, and the second push rod 2152 returns.
Specifically, as shown in fig. 4 and 5, the first guide surface 21511 is a straight surface inclined with respect to the first plane 21512, the first guide surface 21511 is gradually inclined in a direction from C to D toward the first plane 21512, the second guide surface 21521 is a straight surface inclined with respect to the second plane 21522, and the second guide surface 21521 is gradually inclined in a direction from top to bottom toward the second plane 21522.
Further, as shown in fig. 4 to 7, the body 1 is provided with a chute 13 extending along the first direction, one side of the chute 13 facing the baffle 22 is open, and the baffle 22 is provided with a receiving groove 222. The test fixture 100 further includes a connection assembly 4, the connection assembly 4 includes a pressing plate 41, a traction rope 42, an auxiliary rod 43 and a telescopic inserting rod 44, the pressing plate 41 is arranged on the moving end 31, one end (A end) of the traction rope 42 is connected with the pressing plate 41, one end (B end) of the auxiliary rod 43 is connected with the other end (B end) of the traction rope 42, the other end of the auxiliary rod 43 is connected with the telescopic inserting rod 44, the telescopic inserting rod 44 is movably arranged on the sliding groove 13, the telescopic inserting rod 44 is provided with a telescopic end, and the telescopic end is abutted against the wall surface of the baffle 22 or the bottom of the accommodating groove 222. The pressing plate 41 abuts against the auxiliary lever 43 during the movement of the moving end 31 from the second disengaged position to the insertion position. The hauling cable 42 is in a straightened state during movement of the movable end 31 from the second disengaged position to the first disengaged position.
The moving end 31 drives the workpiece 200 to move towards the slot 11, namely, the moving end 31 moves from the first disengaging position to the second disengaging position, the traction rope 42 is gradually loosened, when the moving end 31 moves to the second disengaging position, as shown in fig. 4 to 7, the pressing plate 41 abuts against the auxiliary rod 43, and as the moving end 31 moves towards the inserting position, the moving end 31 synchronously drives the auxiliary rod 43 and the telescopic inserting rod 44 through the pressing plate 41, the telescopic end of the telescopic inserting rod 44 is separated from the accommodating groove 222 of the baffle 22, and when the moving end 31 reaches the inserting position, the telescopic inserting rod 44 is positioned at the bottom of the chute 13, and the telescopic end of the telescopic inserting rod 44 abuts against the wall surface of the baffle 22.
The moving end 31 drives the workpiece 200 to be pulled out of the slot 11 (to the outside of the slot 11), namely, the moving end 31 moves from the plugging position to the second disengaging position, the moving end 31 drives the pressing plate 41 and one end of the traction rope 42 to move, the traction rope 42 is gradually straightened, when the moving end 31 reaches the second disengaging position, the traction rope 42 is in a straightened state, then the moving end 31 moves from the second disengaging position to the first disengaging position, the moving end 31 synchronously drives the auxiliary rod 43 and the telescopic inserting rod 44 through the pressing plate 41 and the traction rope 42, when the telescopic inserting rod 44 moves to correspond to the accommodating groove 222 of the baffle 22, the telescopic end of the telescopic inserting rod 44 stretches into the accommodating groove 222, the telescopic end abuts against the groove bottom of the accommodating groove 222, and then the telescopic inserting rod 44 drives the baffle 22 to synchronously move, so that the baffle 22 sequentially passes through the first communicating position and the second communicating position from the initial position, and when the moving end 31 reaches the first disengaging position, the baffle 22 reaches the final position.
The tested workpiece 200 is then removed and a new workpiece 200 to be tested is mounted on the movable end 31. After the moving end 31 moves from the first disengaging position to the second disengaging position, the traction rope 42 is loosened, then the baffle 22 is pulled to move from the final position to the initial position, the baffle 22 is reset, the telescopic inserted rod 44, the auxiliary rod 43 and the other end of the traction rope 42 synchronously move along with the baffle 22 while the baffle 22 is pulled to reset, and then the moving end 31 drives the workpiece 200 to move from the second disengaging position to the inserting position. The repeated operation is carried out to test a plurality of workpieces successively.
According to the test fixture 100 provided by the embodiment of the invention, the baffle 22 and the movable end 31 are connected through the connecting component 4, so that the movable end 31 is connected with the baffle 22 in the process of moving from the plugging position to the first disengaging position, the baffle 22 is ensured to move to the communicating position after the workpiece 200 is pulled out of the slot 11, thereby ensuring the soot blowing effect on the slot 11 by the workpiece 11, and the baffle 22 is prevented from being in the moment of being in the communicating position in the process of moving from the second disengaging position to the plugging position by the movable end 31, thereby preventing dust on the workpiece 200 from entering the air cavity 211 through the first air hole 12 and the second air hole 221 on the baffle 22, ensuring the cleanliness of air in the air cavity 211, and further ensuring the soot blowing effect on the slot 11 by the gas blowing piece 21.
As shown in fig. 5 and 7, the telescopic plunger 44 includes an outer rod 441, an inner rod 442, and an elastic member 443, the outer rod 441 has a movable groove 4411, the inner rod 442 is movably provided in the movable groove 4411, the elastic member 443 connects a bottom wall surface of the movable groove 4411 and one end (C-end) of the inner rod 442, the other end (D-end) of the inner rod 442 is provided with a dodging surface 4421, the dodging surface 4421 is located on one side of the inner rod 442 adjacent to the other side (groove bottom) of the chute 13 in the first direction, that is, the dodging surface 4421 is located on one side of the inner rod 442 adjacent to the groove bottom of the chute 13 in the first direction. As shown in fig. 7, the relief surface 4421 is located on the B side of the D end of the inner rod 442. Inner rod 442 forms the telescoping end of telescoping plunger 44.
In the process that the moving end 31 moves from the second disengaging position to the inserting position, the moving end 31 pushes the telescopic inserting rod 44 to move to the side B of the chute 13 (namely, the bottom direction of the chute 13) through the pressing plate 41 and the auxiliary rod 43, the avoiding surface 4421 of the inner rod 442 is abutted with the wall surface of the accommodating groove 222 of the baffle 22, so that the inner rod 442 moves to the movable groove 4411, the elastic piece 443 is pressed and deformed, retraction of the telescopic inserting rod 44 is realized, and along with continuous pushing of the moving end 31 to the telescopic inserting rod 44, the telescopic inserting rod 44 is completely separated from the accommodating groove 222 of the baffle 22, and after the inner rod 442 is separated from the accommodating groove 222, the end D of the inner rod 442 is abutted with the baffle 22.
In the process that the moving end 31 moves from the second disengaging position to the first disengaging position, the moving end 31 synchronously drives the auxiliary rod 43 and the telescopic inserting rod 44 to move towards the A side of the chute 13 through the pressing plate 41 and the traction rope 42, when the telescopic inserting rod 44 moves to correspond to the accommodating groove 222 of the baffle 22, the inner rod 442 moves towards the accommodating groove 222 and stretches into the accommodating groove 222 under the elastic force of the elastic piece 443, the end D of the inner rod 442 abuts against the bottom of the accommodating groove 222, and then the telescopic inserting rod 44 drives the baffle 22 to synchronously move.
The telescopic inserted link 44 has a simple structure, and can automatically realize connection and disconnection with the baffle 22 in the moving process, thereby being beneficial to reducing the equipment cost of the test fixture 100 in the embodiment of the invention.
Specifically, the elastic member 443 is a second spring. The inner rod 442 is a rectangular block as a whole, and the avoiding surface 4421 is an arc surface, i.e. the side B of the D end of the inner rod 442 is a rounded corner.
Further, as shown in fig. 4 to 6, the other side of the air box 212 is connected to the body 15 of the body 1, the baffle 22 is located in the air box 212 and abuts against the wall surface of the other side of the air box 212, the other side of the air box 212 is provided with a third air hole 2121, the third air hole 2121 is communicated with the first air hole 12, the other side of the air box 212 is provided with a yielding groove 2122, the yielding groove 2122 is communicated with the sliding groove 13 and the accommodating groove 222, and the telescopic inserting rod 44 is located in the yielding groove 2122. The relief groove 2122 is not in communication with the third air hole 2121. The baffle 22 is arranged in the air box 212, so that the size of the test fixture 100 in the second direction can be saved, the movement of the baffle 22 is limited by the inner structure of the air box 212 (namely, the wall surfaces of the two sides of the air box 212 in the first direction), the safety of the movement of the baffle 22 is ensured, the baffle 22 can be ensured to move in place when the baffle 22 is pulled to reset to the initial position, and meanwhile, the structure layout is compact.
Specifically, the connection assembly 4 further includes a mating plate 45 and an auxiliary block 46, the mating plate 45 is disposed at the one end of the auxiliary rod 43, the mating plate 45 is opposite to the pressing plate 41 in the first direction, the other end of the traction rope 42 is disposed on the mating plate 45, the auxiliary block 46 is disposed at the other end of the auxiliary rod 43, a threaded hole is disposed on the auxiliary block 46, a threaded section is disposed at the other end of the auxiliary rod 43, the threaded section is cooperatively connected with the threaded hole, the auxiliary block 46 is disposed in the sliding groove 13 and the yielding groove 2122, and the auxiliary block 46 is connected with the outer rod 441 of the telescopic inserting rod 44.
During the process of moving the moving end 31 from the second disengaging position to the inserting position, the contact area between the auxiliary rod 43 and the pressing plate 41 is increased by the matching plate 45, so that the pushing action of the pressing plate 41 on the auxiliary rod 43 is ensured. The auxiliary block 46 increases the connection strength of the auxiliary rod 43 and the outer rod 441 of the telescopic inserting rod 44, and meanwhile, the auxiliary block 46 is matched with the sliding groove 13 and the yielding groove 2122, so that the movement of the telescopic inserting rod 44 in the first direction can be guided, the stability and smoothness of the telescopic inserting rod 44 in the moving process are ensured, the stability of the telescopic inserting rod 44 driving the baffle 22 to move is ensured, and the reliability of the test fixture 100 of the embodiment of the invention is improved.
Specifically, as shown in fig. 6, a mounting opening communicated with the opening of the chute 13 is formed in the body 1, a cover plate 14 is arranged at the mounting opening, the chute 13 is closed by the cover plate 14, and an auxiliary rod 43 penetrates out of the cover plate 14 and can slide with the cover plate 14. When the connecting assembly 4 is installed, the auxiliary rod 43, the auxiliary block 46 and the telescopic inserting rod 44 are assembled, then the telescopic inserting rod 44 penetrates into the sliding groove 13 of the body 1, the telescopic inserting rod 44 abuts against the inner bottom wall of the sliding groove 13, then the cover plate 14 is arranged on the auxiliary rod 43 in a penetrating manner and covers the installation opening, namely, the cover plate 14 can be fixed with the body 1 through screws, or the cover plate 14 is welded and connected with the body 1.
Further, the test fixture 100 of the embodiment of the invention further includes a pull rod 5, the pull rod 5 is connected with the baffle 22, the pull rod 5 is located at one side of the baffle 22 away from the pressing plate 41 in the first direction, the air box 212 is provided with an avoidance hole, the pull rod 5 is arranged in the avoidance hole in a penetrating manner, the air box 212 is provided with a sealing ring at the avoidance hole, and the sealing ring is abutted against the pull rod 5. As shown in fig. 3 and 4, the tie rod 5 is located on the B side of the baffle. The pull rod 5 moves synchronously with the baffle 22, and when the baffle 22 needs to be reset to the initial position, the baffle 22 is pulled to the initial position by pulling the part of the pull rod 5 located outside the air box 212. The pull rod 5 has smaller volume, and is convenient to extend out of the gas tank 212 so as to pull the pull rod 5, and meanwhile, a sealing ring is also convenient to be arranged between the gas tank 212 and the pull rod 5, so that the tightness of the gas tank 212 is ensured, and the gas pressure in the gas tank 212 is ensured.
As shown in fig. 2 and 8, the test fixture 100 according to the embodiment of the present invention further includes a dust-proof assembly 6, the dust-proof assembly 6 includes a telescopic member 61 and a dust-proof plate 62, the telescopic member 61 is disposed on the support portion 16 of the body 1, the telescopic member 61 is connected with the dust-proof plate 62 to move the dust-proof plate 62 between a dust-proof position in which one end (upper end) of the dust-proof plate 62 blocks the opening of the slot 11 and a test position in which the dust-proof plate 62 is spaced apart from the body 1. The dustproof assembly 6 can close the opening of the slot 11, and the dustproof plate 62 seals the opening of the slot 11 in the state that the test fixture 100 of the embodiment of the invention is not used or the workpiece is not inserted into the slot 11, so that dust in the environment can be prevented from entering the slot 11, and the cleaning degree of the slot 11 is ensured.
As shown in fig. 8, the dust-proof assembly 6 further includes a fixing plate 63 and an adsorption plate 64, the fixing plate 63 is provided at the other end (lower end) of the dust-proof plate 62, the fixing plate 63 is located at a side of the dust-proof plate 62 facing away from the slot 11 in the first direction, the adsorption plate 64 is detachably provided on the fixing plate 63, and the opening of the slot 11 is inclined toward the adsorption plate 64. So that the dust blown out from the opening of the slot 11 is blown to the adsorption plate 64, the adsorption plate 64 can adsorb the dust, and the dust is prevented from flying in the working environment of the test fixture 100 and falling to other positions, thereby being beneficial to ensuring the cleanliness of the working environment, and simultaneously, the adsorption plate 64 is detachable and convenient to replace.
Specifically, the expansion member 61 is a micro cylinder.
Specifically, as shown in fig. 1 and 2, the moving assembly 3 includes a vertical rod 32, a mounting plate 33, a micro motor 34, a screw 35, a sliding plate 36, a clamping jaw 37, and a guide rod 38. The upright posts 32 are four, two upright posts 32 are one group, two groups of upright posts 32 are respectively positioned at two sides of the body 1 in the first direction, and each group of upright posts 32 is provided with a mounting plate 33. The micro motor 34 is provided on the mounting plate 33 on one side. One end (a end) of the screw 35 is connected to the output end of the micro motor 34, and the other end (B end) of the screw 35 is provided on the mounting plate 33 on the other side. The guide rods 38 have two, two guide rods 38 are respectively located at two sides of the body 1 in the second direction, and two ends of the guide rods 38 are respectively connected with the two mounting plates 33. The sliding plate 36 is provided on the screw rod 35, both sides of the sliding plate 36 in the first direction are provided with guide holes, and the guide rod 38 is fitted in the guide holes. The lead screw 35 and the guide rod 38 each extend in this first direction. A clamping jaw 37 is provided on the slide plate 36, the clamping jaw 37 being used for clamping the workpiece 200.
The sliding plate 36 forms the moving end 31 of the moving assembly 3, i.e. the pressing plate 41 and the second push rod 2152 are provided on the sliding plate 36. The sliding plate 36 is located on the upper side of the body 15, the dust-proof assembly 6 is located on the lower side of the sliding plate 36, the opening of the slot 11 is inclined downward toward the adsorption plate 64, and the lengths of the two uprights 32 on the a side are lower than those of the two uprights 32 on the B side.
Specifically, the clamping jaw 37 is a pneumatic clamping jaw 37.
The above describes a test fixture 100 according to the present application in detail. The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.
Claims (15)
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| CN202510629478.9A CN120144384B (en) | 2025-05-15 | 2025-05-15 | Test fixture |
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| CN120144384B true CN120144384B (en) | 2025-08-08 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218512891U (en) * | 2022-08-23 | 2023-02-21 | 嘉兴市云达智能科技有限公司 | Memory bank slot cleaning equipment |
| CN117434419A (en) * | 2023-09-07 | 2024-01-23 | 法特迪精密科技（苏州）有限公司 | A test device and method for memory chips |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9035669B2 (en) * | 2013-02-20 | 2015-05-19 | Multitest Elektronische Systeme Gmbh | Apparatus and method for testing electronic devices |
| CN110987772A (en) * | 2019-11-18 | 2020-04-10 | 江苏久知电机股份有限公司 | Thermal aging test box |
| CN119166444A (en) * | 2024-08-21 | 2024-12-20 | 长沙安依科技有限公司 | Computer testing device and method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218512891U (en) * | 2022-08-23 | 2023-02-21 | 嘉兴市云达智能科技有限公司 | Memory bank slot cleaning equipment |
| CN117434419A (en) * | 2023-09-07 | 2024-01-23 | 法特迪精密科技（苏州）有限公司 | A test device and method for memory chips |
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