CN216758880U - Double-shaft variable-pitch tightening machine - Google Patents
Double-shaft variable-pitch tightening machine Download PDFInfo
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- CN216758880U CN216758880U CN202123312447.7U CN202123312447U CN216758880U CN 216758880 U CN216758880 U CN 216758880U CN 202123312447 U CN202123312447 U CN 202123312447U CN 216758880 U CN216758880 U CN 216758880U
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Abstract
According to the double-shaft variable-pitch tightening machine, the tightening machine position is adjusted based on the six-shaft robot and the bidirectional screw pair to realize on-site quick change of the sleeve, so that the tightening problems of bolts with complex surfaces and different wheelbases are effectively solved, and the design purposes of improving the tightening operation efficiency and the workpiece processing quality are achieved. The double-shaft variable-pitch tightening machine comprises a sleeve clamping mechanism, a six-shaft robot and a tightening mechanism connected to the flange end of the six-shaft robot; the tightening mechanism comprises a bracket fixing plate, a check ring for assembling a bidirectional screw, a screw fixing seat, a bidirectional screw fixing seat, a guide rail and a servo motor which are transversely arranged are arranged on the bracket fixing plate, and the bidirectional screw is connected with the output end of the servo motor through a coupler; two sets of tightening motors, the upper and lower floating mechanisms, the sleeve clamping cylinder and the sleeve are respectively installed on the slider fixing seats, the two sets of slider fixing seats are respectively coupled with the bidirectional lead screws, and the slider fixing seats are connected to the guide rail through slider buckles.
Description
Technical Field
The utility model relates to a double-shaft variable-pitch tightening machine applying a six-shaft robot, and belongs to the field of mechanical manufacturing.
Background
Along with the rapid development of domestic intelligent manufacturing technology, industrial automation control and integrated equipment are generally applied, and higher technical requirements are provided for the universality and the processing efficiency of bolt tightening processing equipment.
The existing automatic bolt screwing equipment for the motor vehicle engine shell is generally assembled aiming at bolts with the same axle distance, the non-variable diameter bolt screwing equipment is difficult to meet the flexible design requirement of the existing automatic production line, cannot cope with the screwing operation of bolts with different axle distances and complex surfaces, and is used for replacing a screwing sleeve in the field production process, so that the production rhythm and the operation efficiency are obviously influenced, and the screwing effect and the workpiece processing quality are not guaranteed.
In view of this, the present patent application is specifically proposed.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a double-shaft variable-pitch tightening machine, aiming at solving the problems in the prior art, and aiming at realizing the field quick change of a sleeve by adjusting a tightening machine position based on a six-shaft robot and a bidirectional screw pair, thereby achieving the design aims of effectively solving the tightening problems of bolts with complex surfaces and different shaft distances and improving the tightening operation efficiency and the workpiece processing quality.
In order to achieve the design purpose, the double-shaft variable-pitch tightening machine comprises a sleeve clamping mechanism, a six-shaft robot and a tightening mechanism connected to the flange end of the six-shaft robot; the tightening mechanism comprises a bracket fixing plate, a check ring for assembling a bidirectional screw, a screw fixing seat, a bidirectional screw fixing seat, a guide rail and a servo motor which are transversely arranged are arranged on the bracket fixing plate, and the bidirectional screw is connected with the output end of the servo motor through a coupler; two sets of tightening motors, the upper and lower floating mechanisms, the sleeve clamping cylinder and the sleeve are respectively installed on the slider fixing seats, the two sets of slider fixing seats are respectively coupled with the bidirectional lead screws, and the slider fixing seats are connected to the guide rail through slider buckles.
Further, sleeve fixture include the support, be provided with on the support and be used for several array support columns, be provided with sleeve direction copper sheathing fixed plate at the support column top, several array sleeve clamping part overlaps respectively and locates between the support column.
Further, the sleeve clamping part comprises a clamping cylinder arranged on a clamping cylinder fixing plate, a detection sensor is arranged on one side of the clamping cylinder fixing plate, the clamping cylinder is in driving connection with clamping cylinder fingers, a sleeve stored in the clamping cylinder fingers is clamped between the clamping cylinder fingers, and a sleeve positioning guide sleeve is arranged at the top of the cylinder fixing plate.
In summary, the dual-spindle variable-pitch tightening machine has the following advantages:
1. the special tightening tool special for the bolts with complex surfaces and different wheelbases is provided, the operation beat and the production efficiency of tightening operation are obviously improved, and the processing quality of workpieces is improved.
2. The utility model provides a structural design flexibility is higher, can be applicable to automatic high-efficient production line, promotes the prospect preferred.
3. Through the relatively simple driving assembly, the high-reliability double-shaft-direction tightening device has high reliability, has high coordination and large torque bearing capacity in the double-shaft direction, and is favorable for the consistency of actions of the tightening operation end and the achievement of the final tightening purpose.
Drawings
The utility model will now be further described with reference to the following figures.
FIG. 1 is a schematic structural view of a dual-spindle pitch tightener according to the present application;
FIG. 2 is a schematic structural view of the tightening mechanism;
FIG. 3 is a schematic structural view of the sleeve clamping mechanism;
FIG. 4 is a schematic vertical cross-section of the collet chuck assembly;
in the above figures, 1-bottom plate, 2-six axis robot, 4-tightening mechanism, 5-sleeve clamping mechanism;
11-a bracket fixing plate, 12-a screw rod fixing seat, 13-a retainer ring, 14-a bidirectional screw rod, 15-a guide rail, 16-a slider fixing seat, 17-a tightening motor, 18-an up-and-down floating mechanism, 19-a sleeve clamping cylinder and 20-a sleeve;
21-a sleeve clamping cylinder finger, 22-a bidirectional screw fixing seat, 23-a coupler, 24-a servo motor and 25-a sliding block;
31-bracket, 32-support column, 33-sleeve guide copper sleeve fixing plate and 34-sleeve clamping component;
41-clamping cylinder fixing plate, 42-clamping cylinder, 43-clamping cylinder finger, 44-stored sleeve, 45-detection sensor and 46-sleeve positioning guide sleeve.
Detailed Description
To further illustrate the technical solutions adopted by the present application to achieve the intended design objectives, the following preferred embodiments are proposed in conjunction with the accompanying drawings.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The utility model can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the utility model. Therefore, the present invention is not limited to the specific embodiments disclosed below.
Example 1, as shown in fig. 1 to 4, the biaxial variable-pitch tightening machine according to the present invention has a base plate 1 on which a six-axis robot 2 is mounted, and a socket-gripping mechanism 5, and a tightening mechanism 4 is connected to a flange end of the six-axis robot 2 via a valve island 3.
The spatial coordinates of the machine position where the tightening mechanism 4 is located are determined by the six-axis robot 2, and the six-axis robot 2 controls the posture of the tightening mechanism 4 in a three-dimensional space along an X, Y, Z axis, so that the tightening operation of bolts at different angles and different positions is realized.
The sleeve clamping mechanism 5 is located within the working range of the tightening mechanism 4, so that the sleeve on the tightening mechanism 4 can be replaced immediately, and flexible control of double-shaft variable-pitch tightening operation can be realized.
The tightening mechanism 4 comprises a bracket fixing plate 11, a retainer ring 13 for assembling a bidirectional screw 14, a screw fixing seat 12, a bidirectional screw fixing seat 22, a guide rail 15 and a servo motor 24 which are transversely arranged are arranged on the bracket fixing plate 11, and the bidirectional screw 14 is connected with the output end of the servo motor 24 through a coupler 23;
the two groups of tightening motors 17, the upper and lower floating mechanisms 18, the sleeve clamping cylinder 19 and the sleeve 20 are respectively arranged on the sliding block fixing seats 16, and the two groups of sliding block fixing seats 16 are respectively coupled with the bidirectional screw rod 14;
meanwhile, the slider fixing seat 16 is fastened on the guide rail 15 through the slider 25.
Under the drive of the servo motor 24, the bidirectional screw 14 rotates and drives the two sets of slider fixing seats 16 to move relatively or reversely along the axial direction of the guide rail 15, so that the two sets of sleeves 20 move oppositely or reversely, and finally the distance between the shafts of the double-shaft sleeves is changed to correspond to the positions of bolts with different shaft distances.
The sleeve clamping mechanism 5 comprises a support 31, a plurality of groups of support columns 32 are arranged on the support 31, sleeve guide copper sleeve fixing plates 33 are arranged at the tops of the support columns 32, and a plurality of groups of sleeve clamping components 34 are respectively sleeved among the support columns 32.
The sleeve clamping component 34 comprises a clamping cylinder 42 mounted on a clamping cylinder fixing plate 41, a detection sensor 45 is arranged on one side of the clamping cylinder fixing plate 41 to detect whether the sleeve is in place or not, the clamping cylinder 42 is in driving connection with clamping cylinder fingers 43, the stored sleeve 44 is clamped between the clamping cylinder fingers 43, and a sleeve positioning guide sleeve 46 is arranged at the top of the cylinder fixing plate 41.
Based on the double-shaft variable-pitch tightening machine, sleeve replacement and bolt tightening operations can be implemented according to the following processes:
the six-axis robot 2 drives the screwing mechanism 4 to move to the sleeve clamping mechanism 5 to replace a specified sleeve, and the screwing mechanism 4 moves to a screwing station;
according to the types of bolts and sleeves, the distance between two groups of sliding block fixing seats 16 is adjusted on the bidirectional screw rod 14 to adapt to the shaft distance of double-shaft screwing, and the two groups of sliding block fixing seats correspond to the positions of screws to be screwed one by one;
then, the sleeve clamping cylinder 19 drives the sleeve clamping cylinder fingers 21 to clamp the sleeve 20, so that the sleeve 20 is perpendicular to the slider fixing seat 16;
the screwing motor 17 drives the upper floating mechanism 18 and the lower floating mechanism 18 to drive the sleeve 20 to rotate and screw the bolt;
when the bolt is tightened, the upper and lower float mechanisms 18 follow the axial movement of the bolt in the tightening direction to ensure that the sleeve 20 is always in contact with the bolt.
The tightening mechanism 4 based on the six-axis robot 2 can realize double-axis flexible tightening operation and automatic sleeve replacement of bolts with different shaft distances and different types on the surface of a complex part, so that the large tightening torque can be borne, and the tightening mechanism is suitable for large-torque tightening requirements.
In summary, the embodiments presented in connection with the figures are only preferred. Those skilled in the art can now appreciate that other alternative configurations consistent with the present invention can be devised without departing from the spirit and scope of the present invention.
Claims (3)
1. The utility model provides a biax displacement tightening machine which characterized in that: the device comprises a sleeve clamping mechanism, a six-axis robot and a tightening mechanism connected to the flange end of the six-axis robot;
the tightening mechanism comprises a bracket fixing plate, a check ring for assembling a bidirectional screw, a screw fixing seat, a bidirectional screw fixing seat, a guide rail and a servo motor which are transversely arranged are arranged on the bracket fixing plate, and the bidirectional screw is connected with the output end of the servo motor through a coupler;
two sets of tightening motors, the upper and lower floating mechanisms, the sleeve clamping cylinder and the sleeve are respectively installed on the slider fixing seats, the two sets of slider fixing seats are respectively coupled with the bidirectional lead screws, and the slider fixing seats are connected to the guide rail through slider buckles.
2. The dual-spindle pitch-variable tightening machine according to claim 1, characterized in that: the sleeve clamping mechanism comprises a support, a plurality of groups of supporting columns are arranged on the support, a sleeve guiding copper sleeve fixing plate is arranged at the top of each supporting column, and a plurality of groups of sleeve clamping components are respectively sleeved between the supporting columns.
3. The machine according to claim 2, characterized in that: the sleeve clamping component comprises a clamping cylinder arranged on a clamping cylinder fixing plate, a detection sensor is arranged on one side of the clamping cylinder fixing plate, the clamping cylinder is in driving connection with clamping cylinder fingers, a sleeve stored in the clamping cylinder fingers is clamped between the clamping cylinder fingers, and a sleeve positioning guide sleeve is arranged at the top of the cylinder fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312447.7U CN216758880U (en) | 2021-12-27 | 2021-12-27 | Double-shaft variable-pitch tightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312447.7U CN216758880U (en) | 2021-12-27 | 2021-12-27 | Double-shaft variable-pitch tightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216758880U true CN216758880U (en) | 2022-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123312447.7U Active CN216758880U (en) | 2021-12-27 | 2021-12-27 | Double-shaft variable-pitch tightening machine |
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| Country | Link |
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| CN (1) | CN216758880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115592401A (en) * | 2022-09-28 | 2023-01-13 | 律扬（上海）自动化工程有限公司（Cn） | Double-station screwing device |
| CN115592401B (en) * | 2022-09-28 | 2024-04-26 | 律扬（上海）自动化工程有限公司 | Double-station screwing device |
-
2021
- 2021-12-27 CN CN202123312447.7U patent/CN216758880U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115592401A (en) * | 2022-09-28 | 2023-01-13 | 律扬（上海）自动化工程有限公司（Cn） | Double-station screwing device |
| CN115592401B (en) * | 2022-09-28 | 2024-04-26 | 律扬（上海）自动化工程有限公司 | Double-station screwing device |
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