CN207502092U - The sample stage of adjustable-angle - Google Patents

Abstract

The utility model provides an angle-adjustable sample stage, which includes a universal joint ball, a fixing seat and an object stage, wherein the universal joint ball is connected with a connecting rod, and the universal joint ball can be rotated and installed on the In the fixed seat, the connecting rod extends out of the fixed seat, and the fixed seat is connected with a locking piece capable of locking the universal joint ball in the fixed seat, and the connecting rod is connected with the loading platform. The angle-adjustable sample stage provided by the utility model enables the object stage to be easily adjusted to a required angle, so that the angle adjustment operation between the tested sample and the test probe becomes simple and convenient, saves time and effort, and further makes The use and operation of the portable residual stress tester is convenient and quick.

Description

Adjustable sample stage

technical field

The utility model relates to the technical field of residual stress testing, in particular to an angle-adjustable sample stage.

Background technique

In various mechanical processing or steel structure manufacturing processes, especially after thermal processing such as welding, it is difficult to avoid a large residual stress inside the workpiece. Residual stress will affect the size and assembly accuracy of parts, reduce the fatigue resistance, stress corrosion resistance and creep cracking resistance of parts, and ultimately affect the performance and service life of equipment or structural parts.

At present, there are many test methods for residual stress, which can be divided into two categories: destructive and non-destructive test methods according to whether they are destructive to the tested components. Among them, the X-ray stress measurement technology in the non-destructive test method has been developed for more than 60 years. History is the most reliable and mature method for non-destructive testing of residual stress on the surface of crystal materials at home and abroad. Its practicability and measurement accuracy are recognized by all walks of life.

Compared with the desktop X-ray residual stress test equipment, the portable residual stress tester is easy to carry and has a wide range of applications. However, in use, according to the different materials to be tested, the test probe and the sample to be tested should be adjusted to form a certain angle. Since the test probe is large and heavy, this adjustment process is time-consuming and may cause damage to the equipment. .

Utility model content

The purpose of the utility model is to provide an angle-adjustable sample table which can conveniently fix the sample and adjust the inclination angle of the sample conveniently.

In order to achieve the above purpose, the utility model provides an adjustable angle sample stage, which includes: a universal joint ball, a connecting rod is connected to the universal joint ball; a fixed seat, the universal joint ball can rotate installed in the fixed seat, the connecting rod extends out of the fixed seat, and the fixed seat is connected with a locking member capable of locking the universal joint ball in the fixed seat; , the connecting rod is in contact with the stage.

The angle-adjustable sample stage as described above, wherein the fixed seat includes at least two clamping arms, and the opposite surfaces of the two clamping arms are respectively provided with accommodating grooves, and the two accommodating grooves can be enclosed to form In the accommodating space for accommodating the universal joint ball, the two clamping arms are connected to each other through the locking member, and the locking member can drive the two clamping arms to approach or move away from each other.

The angle-adjustable sample stage as described above, wherein the fixed seat further includes an adjustment platform, the locking member is a lock nut, and the bottom surface of one end of the clamping arm is provided with a mounting part, and the mounting part is connected to On the adjustment platform, the other end of the clamping arm is provided with a semi-conical connection part, and the outer conical surface of the connection part is provided with an external thread that can be screwed with the lock nut. The clamping arm is connected to the locking nut by screwing the two external threads.

The angle-adjustable sample stage as described above, wherein, protractors are respectively connected to the two adjacent sides of the adjustment stage, pointers are respectively connected to the centers of the two protractors corresponding to the object stage, and the pointers are vertical Extend upwards.

The angle-adjustable sample stage as described above, wherein the adjustment stage is provided with a slot for connecting the protractor, the lower end of the protractor is inserted into the slot and locked to the inside the slot.

The above-mentioned angle-adjustable sample stage, wherein, the pointer is connected to the object stage through a fastening screw.

The above-mentioned angle-adjustable sample stage, wherein, the installation part is connected to the adjustment stage through fastening screws.

In the angle-adjustable sample stage as described above, the locking member includes two bolts passing through the two ends of the two clamping arms, and two locking nuts respectively connected to the two bolts.

The angle-adjustable sample stage as described above, wherein the fixed seat includes an adjustment platform and two spaced projections arranged on the adjustment platform, and the distance between the two projections is smaller than that of the universal direction. The diameter of the joint ball, and the height of the two protrusions is greater than the radius of the universal joint ball, and a spherical groove is provided on the opposite surface of the two protrusions, and the universal joint ball can be rotated and clamped between the two Between the spherical grooves, the locking member is a locking screw that is screwed into the protrusion from the surface facing away from the spherical groove, and the locking screw can withstand the outer circumference of the universal joint ball noodle.

The angle-adjustable sample stage as described above, wherein, the upper end of the connecting rod is provided with an external thread, and the bottom surface of the stage is provided with a threaded hole, and the external thread is matched with the thread of the threaded hole, The connecting rod is in contact with the object platform.

Compared with prior art, the utility model has the following advantages:

The angle-adjustable sample stage provided by the utility model can adjust the object stage to a required angle through the cooperation between the universal joint ball and the fixed seat, so that the angle adjustment operation between the tested sample and the test probe can be achieved. It becomes simple and convenient, which makes the use and operation of the portable residual stress tester convenient and fast;

The angle-adjustable sample stage provided by the utility model makes the operation of adjusting the angle of the object stage more accurate through the cooperation between the pointer and the protractor;

The angle-adjustable sample stage provided by the utility model has the advantages of simple structure, convenient use, time-saving and labor-saving.

Description of drawings

The following drawings are only intended to illustrate and explain the utility model schematically, and do not limit the scope of the utility model. in:

Fig. 1 is the structure schematic diagram of the universal joint ball and the object stage in the angle-adjustable sample stage of the present utility model;

Fig. 2 is a schematic structural view of the universal joint ball and the fixed seat in the angle-adjustable sample stage of the present invention;

FIG. 3 is a schematic structural view of the fixing seat in FIG. 2 .

Explanation of reference numbers:

1. Universal joint ball; 11. Connecting rod; 2. Fixed seat; 21. Clamping arm; 211. Accommodating groove; 212. Installation part; 213. Connecting part; 22. Accommodating space; 3. Lock nut ; 4. Stage; 5. Adjusting table; 6. Protractor; 7. Pointer; 8. Locking bolt; 9. Fastening screw.

Detailed ways

In order to have a clearer understanding of the technical scheme, purpose and effect of the utility model, the specific implementation of the utility model will now be described in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, the utility model provides a sample stage with an adjustable angle, which is suitable for a portable residual stress tester. The sample stage with an adjustable angle includes a universal joint ball 1, a fixed seat 2 and The stage 4, wherein the universal joint ball 1 is connected with a connecting rod 11, the connecting rod 11 and the universal joint ball 1 are integrally made of 304 stainless steel block, and the universal joint ball 1 is rotatably mounted on the fixed seat 2 Inside, the connecting rod 11 extends out of the fixed seat 2, and the fixed seat 2 is connected with a locking piece that can lock the universal joint ball 1 in the fixed seat 2, that is, the universal joint ball 1 has two states relative to the fixed seat 2 , one is to rotate relative to the fixed seat 2, and the other is locked in the fixed seat 2 by the locking member, so that the connecting rod 11 extending out of the fixed seat 2 can swing arbitrarily outside the fixed seat 2, and can Fixed at any position outside the fixed seat 2, the stage 4 is made of 304 stainless steel through machining, the bottom surface of the stage 4 is connected to the extension end of the connecting rod 11, so that the stage 4 can swing with the connecting rod 11 And can realize the tilt with a certain angle with the horizontal plane.

When in use, the universal joint ball 1 is put into the holder 2, then the sample to be tested is fixed on the stage 4 with plasticine, and the stage 4 is connected with the connecting rod 11, and then as required The angle between the tested sample and the test probe is adjusted by adjusting the inclination angle of the stage 4. When the stage 4 is adjusted to the required angle, the universal joint ball 1 is locked in the fixed seat 2 with a locking member. So that the universal joint ball 1 cannot rotate relative to the fixed seat 2, so that the stage 4 is fixed at the position of the required inclination angle, that is, the angle between the tested sample and the test probe can be adjusted to the required position.

Wherein, the stage can also be made of other materials with a tensile strength not lower than 450MPa and a yield strength not lower than 180MPa.

The angle-adjustable sample stage provided by the utility model enables the stage 4 to be adjusted to a required angle through the cooperation between the universal joint ball 1 and the fixed seat 2, so that the distance between the tested sample and the test probe is The angle adjustment operation becomes simple and convenient, saves time and effort, and thus makes the use and operation of the portable residual stress tester convenient and fast.

Further, the upper end of the connecting rod 11 is provided with an external thread, and the center of the bottom surface of the stage 4 is provided with a threaded hole. Through the threaded cooperation of the external thread and the threaded hole, the connecting rod 11 is connected with the stage 4, and the threaded connection is simple. Reliable, when not in use, the stage 4 can also be disassembled from the connecting rod 11 of the universal joint ball 1, so as to facilitate the storage of the sample stage whose angle can be adjusted.

Of course, the connecting rod 11 can also be connected to the stage 4 in other ways, such as bolted connection, etc., which will not be repeated here.

In one embodiment of the present utility model, as shown in Figure 3, the fixed base 2 includes at least two clamping arms 21, the two clamping arms 21 are made of 55Si2Mn spring steel through machining, and the two clamping arms 21 are opposite to each other. The surface is respectively provided with accommodating grooves 211, and the inner wall surface of the two accommodating grooves 211 is a spherical arc surface adapted to the outer peripheral surface of the universal joint ball 1. In this way, the distance between the accommodating grooves 211 and the universal joint ball 1 can be increased. The contact area of the outer surface is such that the two clamping arms 21 can clamp the universal joint ball 1, and the two accommodation grooves 211 can enclose and form the accommodation space 22 for accommodating the universal joint ball 1. The two clamping arms 21 are connected by locking parts, and the locking parts can drive the two clamping arms 21 to approach or move away from each other, so that the two clamping arms 21 can clamp or loosen the universal joint ball 1, so that the universal joint ball 1 can It is restricted in the accommodating space 22 and cannot rotate, and can rotate relative to the accommodating space 22 , thereby making the operation of adjusting the deflection angle of the stage 4 simple and convenient.

Further, as shown in Fig. 2 and Fig. 3, the fixed base 2 also includes an adjustment table 5, the adjustment table 5 is made of 304 stainless steel block through machining, the locking part is a lock nut 3, and the bottom surface of one end of the clamping arm 21 is provided with a Mounting portion 212 is arranged, and mounting portion 212 is connected to the upper end face of adjusting platform 5, namely one end of clamping arm 21 is fixed on adjusting platform 5, and the other end of clamping arm 21 is provided with the connecting portion 213 that is semi-conical, two The two connecting parts 213 of the clamping arm 21 can be combined to form a cone, and the outer conical surface of the connecting part 213 is provided with an external thread that can be screwed with the lock nut 3, and the two clamping arms 21 are connected to the lock nut through the two external threads. 3 is screwed and connected. By tightening or loosening the lock nut 3, the two clamping arms 21 can approach or move away from each other, thereby changing the size of the accommodation space 22, so that the universal joint ball 1 can be restricted. It cannot be rotated in the accommodating space 22 , but can rotate relative to the accommodating space 22 , so that the operation of clamping or loosening the universal joint ball 1 is simple and convenient.

Among them, the adjustment platform can also be made of other materials with a tensile strength not lower than 450MPa and a yield strength not lower than 180MPa. The semi-cone is formed by cutting the cone along its axis.

Further, as shown in Fig. 1 and Fig. 2, in order to make the operation of adjusting the angle of the stage 4 simpler and more convenient, protractors 6 are respectively connected to the adjacent two sides of the adjusting table 5, and the protractors 6 are arranged perpendicular to the upper surface of the adjusting table 5 , the center of the two protractors 6 corresponding to the stage 4 is respectively connected with a pointer 7, the pointer 7 extends vertically upwards, the initial position of the pointer 7 points to the 90° scale position of the protractor 6, when adjusting the deflection angle of the stage 4, according to For the reading of the pointer 7 on the protractor 6, adjust the stage 4 to the required angle, and then tighten the lock nut 3 so that the universal joint ball 1 cannot rotate relative to the accommodation space 22. The protractor 6 and the pointer The setting of 7 makes the operation of adjusting the deflection angle of the stage 4 more accurate, simple and convenient, and saves time and effort.

Further, as shown in Figure 2, the adjusting platform 5 is provided with a slot (not shown) for connecting the protractor 6, the lower end of the protractor 6 is inserted into the slot and locked in the slot by the locking bolt 8 Inside, the protractor 6 can be disassembled and connected to the adjusting table 5. When the angle-adjustable sample table is not in use, the protractor 6 can be removed from the adjustment table 5, so as to facilitate the storage of the angle-adjustable sample table.

Of course, the protractor 6 can also be connected to the adjacent two sides of the adjusting platform 5 by bonding, or two clips are respectively arranged on the adjacent two sides of the adjusting platform 5 corresponding to the positions on both sides of the bottom of the protractor 6, and the The protractor 6 is clamped on the side of the adjustment platform 5 .

Further, as shown in Figure 1, the pointer 7 is connected to the stage 4 through the fastening screw 9. This connection method is simple and reliable, which can prevent the pointer 7 from falling off due to external force and ensure the connection between the pointer 7 and the stage 4. Similarly, when the angle-adjustable sample stage is not in use, the pointer 7 can be removed from the adjustment stage 5, so as to facilitate the storage of the angle-adjustable sample stage.

Of course, the pointer 7 can also be integrally formed with the stage 4, or be connected to the stage 4 by bonding. It should be noted that when the bonding method is used, the distance between the pointer 7 and the stage 4 must be ensured. The firmness of the connection.

Further, the mounting part 212 is connected to the adjustment table 5 through the fastening screw 9. This connection method is simple and reliable. When the angle-adjustable sample table is not in use, the clamping arm 21 can be removed from the adjustment table 5, so that For the storage of the sample stage with adjustable angle.

Of course, the installation part 212 can also be connected to the adjustment table 5 by snap-fitting. Specifically, a convex button is provided on the upper surface of the adjustment table 5, and a card slot is provided on the installation part 212. Through the connection between the convex button and the card slot, The mounting part 212 is connected to the adjustment table 5 through clamping fit.

In another embodiment of the present utility model, the locking member includes two bolts (not shown in the figure) passing through the two ends of the two clamping arms 21, and two lock nuts respectively connected to the two bolts. 3 (not shown in the figure), that is, a bolt is respectively pierced on both sides of the two clamping arms 21, and by tightening or loosening the lock nut 3, the two clamping arms 21 can approach or move away from each other, thereby changing the accommodation The size of the space 22 is such that the universal joint ball 1 can not only be restricted in the accommodating space 22 and cannot rotate, but also can rotate relative to the accommodating space 22, thereby making the operation of clamping or loosening the universal joint 1 simple and convenient, save time and energy.

In yet another embodiment of the present utility model, the fixed seat 2 includes an adjustment platform 5 and two spaced projections (not shown in the figure) arranged on the adjustment platform 5, and the distance between the two projections is less than 10,000 The diameter of the joint ball 1, the height of the two protrusions is greater than the radius of the universal joint ball 1, and a spherical groove is provided on the opposite surface of the two protrusions, and the inner wall of the spherical groove is in line with the outer peripheral surface of the universal joint ball 1 Fitting, the universal joint ball 1 can be rotated and clamped between the two spherical grooves, so that the universal joint ball 1 cannot move, but can only rotate, and the locking part is a lock that is screwed into the protrusion from the surface facing away from the spherical groove Tighten the screw, the locking screw can withstand the outer peripheral surface of the universal joint ball 1, after adjusting the angle of the stage 4 connected with the universal joint ball 1, push the locking screw against the universal joint ball 1 the outer peripheral surface of the universal joint ball 1 so that the universal joint ball 1 cannot rotate, and when it needs to be adjusted again, unscrew the locking screw so that the locking screw does not contact the outer peripheral surface of the universal joint ball 1 and adjust the angle of the stage 4 Finally, it is enough to push the locking screw against the outer peripheral surface of the universal joint ball 1, and the operation of restricting the rotation of the universal joint ball 1 through the locking screw is simple and convenient.

The assembly and use process of the angle-adjustable sample stage provided by the utility model will be described in detail below in conjunction with the accompanying drawings:

As shown in Figures 1-3, when assembling, first connect the mounting parts 212 of the two clamping arms 21 to the adjustment table 5 through fastening screws 9, and make the accommodation space 22 formed by the two clamping arms 21 enclose Located in the middle of the adjustment table 5, put the universal joint ball 1 into the accommodation space 22 enclosed by the two clamping arms 21, and make the connecting rod 11 extend out of the accommodation space 22, and then put the lock nut 3 and The connecting parts 213 of the two clamping arms 21 are screwed together, and then the sample to be tested is fixed on the stage 4 with plasticine, and the connecting rod 11 of the stage 4 and the universal joint ball 1 is screwed together, and the basic Complete the assembly of the sample stage with adjustable angle;

When in use, according to the reading of the pointer 7 on the protractor 6, the stage 4 is adjusted to the required angle, and then the lock nut 3 is tightened so that the universal joint ball 1 cannot rotate relative to the accommodating space 22, that is The angle between the tested sample and the test probe can be made to meet the use requirements.

In summary, the angle-adjustable sample stage provided by the utility model can adjust the object stage to a required angle through the cooperation between the universal joint ball and the fixed seat, so that the distance between the tested sample and the test probe The angle adjustment operation becomes simple and convenient, saves time and effort, and makes the use and operation of the portable residual stress tester convenient and fast;

The angle-adjustable sample stage provided by the utility model makes the operation of adjusting the angle of the object stage more accurate through the cooperation between the pointer and the protractor;

The angle-adjustable sample stage provided by the utility model has the advantages of simple structure and convenient use.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention. And it should be noted that each component of the utility model is not limited to the above-mentioned overall application, and each technical feature described in the specification of the utility model can be selected to be used alone or in combination according to actual needs. Therefore, The utility model naturally covers other combinations and specific applications related to the invention point of the case.

Claims (10)

1. a sample stage with adjustable angle, characterized in that, the sample stage with adjustable angle comprises: A universal joint ball, the universal joint ball is connected with a connecting rod; A fixed seat, the universal joint ball is rotatably installed in the fixed seat, the connecting rod extends out of the fixed seat, and the fixed seat is connected with a Locking parts in the fixed seat; The object stage, the connecting rod is connected with the object stage. 2. The angle-adjustable sample stage according to claim 1, characterized in that, The fixing seat includes at least two clamping arms, and the opposite surfaces of the two clamping arms are respectively provided with accommodating grooves, and the two accommodating grooves can be enclosed to form a housing for accommodating the universal joint ball. space, the two clamping arms are connected by the locking member, and the locking member can drive the two clamping arms to approach or move away from each other. 3. The angle-adjustable sample stage according to claim 2, characterized in that, The fixing seat also includes an adjustment table, the locking member is a lock nut, and the bottom surface of one end of the clamping arm is provided with a mounting part, and the mounting part is connected to the adjusting table, and the clamping arm The other end is provided with a semi-conical connecting portion, the outer conical surface of the connecting portion is provided with an external thread that can be screwed with the lock nut, and the two clamping arms are connected to the two clamping arms through the two external threads. The screw-on fit of the lock nut is connected. 4. The angle-adjustable sample stage according to claim 3, characterized in that, Protractors are respectively connected to adjacent two sides of the adjustment table, pointers are respectively connected to centers of the two protractors corresponding to the object stage, and the pointers extend vertically upward. 5. The angle-adjustable sample stage according to claim 4, characterized in that, The adjusting table is provided with a slot for connecting the protractor, and the lower end of the protractor is inserted into the slot and locked in the slot by a locking bolt. 6. The angle-adjustable sample stage according to claim 4, characterized in that, The pointer is connected to the object stage through fastening screws. 7. The angle-adjustable sample stage according to claim 3, characterized in that, The installation part is connected with the adjustment platform through fastening screws. 8. The angle-adjustable sample stage according to claim 2, characterized in that, The locking member includes two bolts passing through the two ends of the two clamping arms, and two locking nuts respectively connected to the two bolts. 9. The angle-adjustable sample stage according to claim 1, characterized in that, The fixing seat includes an adjustment platform and two spaced projections arranged on the adjustment platform, the distance between the two projections is smaller than the diameter of the universal joint ball, and the height of the two projections is greater than the radius of the universal joint ball, spherical grooves are provided on the opposite surfaces of the two protrusions, and the universal joint ball can be rotatably locked between the two spherical grooves, and the locking member is The locking screw of the projection is screwed in from the surface facing away from the spherical groove, and the locking screw can abut against the outer peripheral surface of the universal joint ball. 10. The angle-adjustable sample stage according to any one of claims 1 to 9, characterized in that, The upper end of the connecting rod is provided with an external thread, and the bottom surface of the carrier is provided with a threaded hole, and the connecting rod is connected to the carrier through the thread cooperation of the external thread and the threaded hole.