CN110695668A - Automatic screwing device for open type screw and nut - Google Patents
Automatic screwing device for open type screw and nut Download PDFInfo
- Publication number
- CN110695668A CN110695668A CN201910907937.XA CN201910907937A CN110695668A CN 110695668 A CN110695668 A CN 110695668A CN 201910907937 A CN201910907937 A CN 201910907937A CN 110695668 A CN110695668 A CN 110695668A
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- row chain
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- screw
- cam follower
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- 230000001360 synchronised effect Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses an automatic screwing device for an open screw and a nut. Comprises an upper bottom plate, a lower bottom plate, a group of driving double-row chain wheels and two groups of driven double-row chain wheels which are arranged on the bottom plates. And an upper group of cam follower track guide blocks and a lower group of cam follower track guide blocks are also arranged on the bottom plate. And the double-row chain with the tightening gasket and the cam follower sequentially bypasses or passes through the group of driving double-row chain wheels, the two groups of driven double-row chain wheels and the two groups of cam follower track guide blocks. When the driving side double-row chain wheel rotates, the double-row chain is driven to rotate together. The tightening pad telescopic pairs on the double-row chain form an open regular polygon around the center when the guide of the cam follower and the guide block of the cam follower track is downward. The open regular polygon can be fed from the radial direction of the screw (or the nut) and can be sleeved on the edge of the screw (or the nut) for automatic screwing. Therefore, the problem that the existing automatic screwing device is not suitable for screwing work of products such as 'limited space in the axial feeding direction or obstacles in the axial feeding direction' and the like is solved.
Description
Technical Field
The invention belongs to the field of industrial automation devices, and particularly relates to an automatic screwing device for an open screw and a nut.
Background
The locking of screws and nuts in the assembly of industrial products is a time-consuming, laborious and laborious task. In recent years, many devices or tools for automatic locking of screws and nuts appear at home and abroad.
The structures of the devices or tools for automatic locking appear to be varied and are diversified. But they have a common feature: the bit or sleeve used for locking the screw or nut is fed from the axial direction of the screw so as to insert or sleeve the screw (nut) for screwing.
It is obviously not feasible to insert or sleeve the screw (nut) for automatic screwing operation if the conventional screwdriver or sleeve is used to feed the screw axially, if the space in the axial feeding direction is not enough or there is an obstacle in the axial feeding direction (for example, a long wire passes through the middle of the nut at the wire outlet of a junction box product; for example, a cylindrical proximity sensor is locked by the nut, a long ground wire is dragged behind the cylindrical proximity sensor, or for example, when the nut in the middle of two butted air pipes is screwed, the two ends of the nut have long pipelines, so that the situation that the screw (nut) has an obstacle in the axial feeding direction is common).
For the above reasons, it is generally desired to have "an open screw and nut automatic screwing device" similar to an open wrench. When it is difficult to insert or sleeve the screw (nut) from the axial direction, the edge of the screw or nut can be fed and sleeved from the radial direction, so that the automatic tightening work can be performed.
Disclosure of Invention
The automatic screwing device aims to solve the problem that the existing automatic screwing device is not suitable for screwing the screw (nut) of products with limited space in the axial feeding direction or obstacles in the axial feeding direction. The invention provides an automatic screwing device for an open screw and a nut. The device can feed products such as 'the space in the axial feeding direction is limited or the axial feeding direction has obstacles' from the radial direction, and the edges of the screw or the nut are sleeved for automatic screwing.
The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic open screw and nut screwing device comprises an upper base plate, a lower base plate, a driving side double-row chain wheel and two groups of driven side double-row chain wheels, wherein the upper base plate and the lower base plate are isosceles triangles, the driving side double-row chain wheels are arranged at the top corners of the base plates, and the two groups of driven side double-row chain wheels are arranged at the two bottom corners. An upper group of cam follower track guide blocks and a lower group of cam follower track guide blocks are also arranged on an upper bottom plate and a lower bottom plate between the two groups of driven side double-row chain wheels. And sequentially winding the 'double-row chain' with the tightening gasket and the cam follower on the outer rings of the three groups of 'double-row chain wheels'. And cam followers at two sides of a double-row chain at the middle part of the two groups of driven side double-row chain wheels are embedded into the two groups of cam follower track guide blocks. When the 'driving side double-row chain wheel' has power input and rotates, the 'double-row chain' can be driven to rotate together; in the middle area of the two groups of driven side double-row chain wheels, the cam followers on the double-row chain are embedded into the upper and lower groups of cam follower track guide blocks. Because the guide groove inside the track guide block of the cam follower is circular, an open regular polygon formed by the telescopic pairs of the tightening gaskets on the double-row chain can rotate along the center. The "open regular polygon" can then be used to screw the edges of the screw or nut, which are fed radially and are then slipped over.
The invention has the beneficial effects that: the invention can feed and sleeve the edge of the screw (or the nut) from the radial direction of the screw, and carries out automatic screwing work on products with limited space in the axial feeding direction or obstacles in the axial feeding direction, and the like.
The invention will be explained in more detail below with reference to the drawings and examples.
Drawings
FIG. 1: is a front view of the present invention.
FIG. 2: is a cross-sectional view of the present invention.
FIG. 3: is a perspective view of the present invention.
FIG. 4: : detailed drawing of double-row chain with tightening gasket and cam follower
FIG. 5: detailed drawing of tightening gasket expansion pair
Description of reference numerals: the chain wheel chain locking mechanism comprises a mounting base plate 1, a driving side double-row chain wheel 2, an inner chain piece 3, an outer chain piece 4, a screw M4 5, a cam follower 6, a cam follower track guide block 7, a driven side double-row chain wheel 8, a driven wheel mounting shaft 9, a screw M5, a mounting base plate connecting rod 11, a deep groove ball bearing 12, a driving chain wheel retainer ring 13, a driving wheel driving shaft 14, a clamp spring 15, a driven chain wheel retainer ring 16, a screw rod to be locked 17, a nut to be locked 18, a female gasket to be screwed 19, a male gasket to be screwed 20, a short pin 21 and a long pin 22.
Detailed Description
Embodiment, as shown in fig. 1 to 5, an open type screw and nut automatic screwing device comprises an upper 1 mounting base plate and a lower 1 mounting base plate, and an 11 mounting base plate connecting rod which links the two 1 mounting base plates together, and the three parts are locked together by a 10 screw M5 to form a frame of the device; two 12 deep groove ball bearings are respectively arranged in bearing holes of an upper 1 mounting base plate and a lower 1 mounting base plate, a 14 driving wheel driving shaft is arranged in the two 12 deep groove ball bearings, a 15 clamp spring is clamped at the tail part of the 14 driving wheel driving shaft, a 2 driving side double-row chain wheel and a 13 driving chain wheel retainer ring are sequentially sleeved in the 14 driving wheel driving shaft; the '9 driven wheel mounting shaft' is locked on the '1 mounting bottom plate' through a '10 screw M5', and a '16 driven sprocket retaining ring' and a '8 driven side double-row sprocket' and another '16 driven sprocket retaining ring' are sleeved on the '9 driven wheel mounting shaft' in sequence; two pieces of '7 cam follower track guide blocks' are respectively locked and attached to an upper and a lower '1 mounting bottom plates' through '5 screws M4'.
A plurality of '3 inner chain pieces' and '4 outer chain pieces' are connected end to end in a mode of separating one '21 short pin' from one '22 long pins', so that a double-row chain is formed; inserting the boss of the '20 screwed male gasket' into the groove of the '19 screwed female gasket' to form a group of 'screwed gasket telescopic pairs'; through pin holes at two ends of the 'tightening gasket telescopic pairs', a plurality of 'tightening gasket telescopic pairs' are connected end to end, and the pin holes at two ends of the 'tightening gasket telescopic pairs' are arranged at '22 long pins' of the double-row chain; a6 cam follower is locked at the outer end of each of the 21 short pins and the 22 long pins, so that a 'double-row chain with tightening spacers and cam followers' is formed.
And (3) hanging the double-row chain with the tightening gasket and the cam follower on the outer rings of the 2 driving side double-row chain wheel and the 8 driven side double-row chain wheel. And the 6 cam followers at two sides of the double-row chain at the middle part of the two groups of 8 driven side double-row chain wheels are respectively embedded into the 7 cam follower track guide blocks at the upper and lower groups.
The '17 to-be-locked screw rod' and the '18 to-be-locked nut' are schematic diagrams of to-be-locked parts.
The motion principle of the device is analyzed as follows: when the 14 driving wheel driving shaft is connected to the torque output ends of an electric screw gun, a pneumatic screw gun, a motor and the like, the 14 driving wheel driving shaft drives the 2 driving side double-row chain wheels to rotate together when the torque output ends rotate; then the double-row chain with the tightening gasket and the cam follower is driven to rotate together by the 2 driving side double-row chain wheel; in the middle area of the two 8 driven side double-row chain wheels, the 6 cam followers are embedded in the 7 cam follower track guide blocks of the upper and lower groups; since the guide locus inside the "7 cam follower locus guide block" is a circular locus (see a cut-away view part of the figure), the locus of revolution of the "6 cam follower" in this region is: rotating around a certain circle center; because the pin holes at the two ends of the 'screwing gasket telescopic pair' and the '6 cam followers' arranged on the '22 long pins' are concentric, the 'screwing gasket telescopic pair' in the area can form an 'open regular polygon' (the example shown in the figure I is that the 'open regular polygon' with other numbers of sides can be formed by properly changing the distance between '8 driven side double-row chain wheels' and the diameter of the circular track of the '7 cam follower track guide block'); when the 6 cam follower revolves around a certain circle center, the open-type regular polygon surrounded by the screwed gasket telescopic pairs also revolves around the certain circle center; at the moment, the opening type regular polygon can pass through the opening, and the edge of the 18 nut to be locked in the figure I is sleeved in the opening from the radial direction; the screwing work can be carried out on the 18 nut to be locked.
Thus, the invention realizes that: when feeding from the axial direction to insert or sleeve a screw (nut) for screwing work is difficult. The requirement of automatic tightening operation can be realized by feeding the screw or the nut in the radial direction and sleeving the edge of the screw or the nut.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. For example, a 'double-row chain' in a power transmission device can be changed into a single-row chain, a plurality of rows of chains, a single-row synchronous belt, a plurality of rows of synchronous belts, a single-row steel rope, a plurality of rows of steel ropes, a single-row belt, a plurality of rows of belts and the like; the '2 driving side double-row chain wheels' and the '8 driven side double-row chain wheels' can be changed into single-row chain wheels or multi-row chain wheels, single-row and multi-row synchronizing wheels, single-row and multi-row belt wheels and the like; the 6 cam follower can be changed into a bearing, a guide post and the like. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (5)
1. An open type automatic screwing device for screws and nuts comprises an upper 1 mounting base plate, a lower 1 mounting base plate and an 11 mounting base plate connecting rod which links the two 1 mounting base plates together, wherein the three parts are locked together through a 10 screw M5 to form a frame of the device; two 12 deep groove ball bearings are respectively arranged in bearing holes of an upper 1 mounting base plate and a lower 1 mounting base plate, a 14 driving wheel driving shaft is arranged in the two 12 deep groove ball bearings, a 15 clamp spring is clamped at the tail part of the 14 driving wheel driving shaft, a 2 driving side double-row chain wheel and a 13 driving chain wheel retainer ring are sequentially sleeved in the 14 driving wheel driving shaft; the '9 driven wheel mounting shaft' is locked on the '1 mounting bottom plate' through a '10 screw M5', and a '16 driven sprocket retaining ring' and a '8 driven side double-row sprocket' and another '16 driven sprocket retaining ring' are sleeved on the '9 driven wheel mounting shaft' in sequence; two pieces of '7 cam follower track guide blocks' are respectively locked and attached to an upper and a lower '1 mounting bottom plates' through '5 screws M4'.
2. The automatic open-type screwing device for screw and nut according to claim 1, characterized in that: a plurality of '3 inner chain pieces' and '4 outer chain pieces' are connected end to end in a mode of '21 short pins' and '22 long pins' at intervals, so that a 'double-row chain' is formed; inserting the boss of the '20 screwed male gasket' into the groove of the '19 screwed female gasket' to form a group of 'screwed gasket telescopic pairs'; through pin holes at two ends of the 'tightening gasket telescopic pairs', a plurality of 'tightening gasket telescopic pairs' are connected end to end, and the pin holes at two ends of the 'tightening gasket telescopic pairs' are arranged at '22 long pins' of the double-row chain; a6 cam follower is locked at the outer end of each of the 21 short pins and the 22 long pins, so that a 'double-row chain with tightening spacers and cam followers' is formed.
3. The automatic open-type screwing device for screw and nut according to claim 1, characterized in that: the double-row chain with the tightening gasket and the cam follower is hung on the outer ring of the group of 2 driving side double-row chain wheels and the two groups of 8 driven side double-row chain wheels. And the 6 cam followers at two sides of the double-row chain at the middle part of the two groups of 8 driven side double-row chain wheels are respectively embedded into the 7 cam follower track guide blocks at the upper and lower groups.
4. The automatic open-type screwing device for screw and nut according to claim 1, characterized in that: the 14 driving wheel driving shaft is connected to the torque output ends of an electric screw gun, a pneumatic screw gun, a motor and the like, and when the torque output ends of the electric screw gun and the like rotate, the 2 driving side double-row chain wheels are driven to rotate together; thereby driving the double-row chain with the tightening gasket and the cam follower to rotate together; in the middle area of the two 8 driven side double-row chain wheels, an open regular polygon formed by the tightening gasket telescopic pairs also rotates around a certain circle center; at the moment, the opening type regular polygon can pass through the opening, and the edge sleeved with the screw or the nut is screwed automatically by advancing from the radial direction.
5. The automatic open-type screwing device for screw and nut according to claim 1, characterized in that: the 'double-row chain' in the power transmission device can be changed into a single-row chain, a plurality of rows of chains, a single-row synchronous belt, a plurality of rows of synchronous belts, a single-row steel rope, a plurality of rows of belts and the like; the '2 driving side double-row chain wheels' and '8 driven side double-row chain wheels' in the power transmission device can be changed into single-row chain wheels or multi-row chain wheels, single-row and multi-row synchronous wheels, single-row and multi-row belt wheels and the like; the 6 cam follower can be changed into a bearing, a guide post and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907937.XA CN110695668A (en) | 2019-09-23 | 2019-09-23 | Automatic screwing device for open type screw and nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910907937.XA CN110695668A (en) | 2019-09-23 | 2019-09-23 | Automatic screwing device for open type screw and nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110695668A true CN110695668A (en) | 2020-01-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910907937.XA Withdrawn CN110695668A (en) | 2019-09-23 | 2019-09-23 | Automatic screwing device for open type screw and nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110695668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571191A (en) * | 2020-05-27 | 2020-08-25 | 何燕娟 | A preliminary tightening device for assembling corner nuts |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11188653A (en) * | 1997-12-25 | 1999-07-13 | Shibaura Mechatronics Corp | Pipe screw fastening machine |
| JP2008030129A (en) * | 2006-07-26 | 2008-02-14 | Matsushita Electric Works Ltd | Nut rotating tool of hanging hardware in gutter |
| US20100199812A1 (en) * | 2008-02-12 | 2010-08-12 | Allan Stewart Richardson | Power tong |
| CN102482924A (en) * | 2009-07-06 | 2012-05-30 | 阿克Mh股份有限公司 | Device and method for rotation of torque tong |
| CN104607485A (en) * | 2013-11-01 | 2015-05-13 | 天津市正平机械新技术有限公司 | Drawing device driver |
| CN208117699U (en) * | 2018-04-28 | 2018-11-20 | 广西玉柴机器股份有限公司 | A kind of screw thread installation and removal auxiliary tool |
-
2019
- 2019-09-23 CN CN201910907937.XA patent/CN110695668A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11188653A (en) * | 1997-12-25 | 1999-07-13 | Shibaura Mechatronics Corp | Pipe screw fastening machine |
| JP2008030129A (en) * | 2006-07-26 | 2008-02-14 | Matsushita Electric Works Ltd | Nut rotating tool of hanging hardware in gutter |
| US20100199812A1 (en) * | 2008-02-12 | 2010-08-12 | Allan Stewart Richardson | Power tong |
| CN102482924A (en) * | 2009-07-06 | 2012-05-30 | 阿克Mh股份有限公司 | Device and method for rotation of torque tong |
| CN104607485A (en) * | 2013-11-01 | 2015-05-13 | 天津市正平机械新技术有限公司 | Drawing device driver |
| CN208117699U (en) * | 2018-04-28 | 2018-11-20 | 广西玉柴机器股份有限公司 | A kind of screw thread installation and removal auxiliary tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571191A (en) * | 2020-05-27 | 2020-08-25 | 何燕娟 | A preliminary tightening device for assembling corner nuts |
| CN111571191B (en) * | 2020-05-27 | 2021-11-26 | 徐州新大隆化工泵业制造有限公司 | Preliminary tightening device for assembling corner nuts |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Guo Yuanli Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200117 |