Industrial robot upper arm machining clamp
By designing a machining fixture for the upper arm of an industrial robot, using a combined structure of support plate, protective cover, tie rod, press plate and pressing seat, the problem of difficulty in clamping and processing irregularly shaped thin-walled workpieces in the prior art is solved, and high-precision and high-efficiency processing effect is achieved.
Patent Information
- Application Number
- CN202421553160.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing CNC machine fixtures are difficult to effectively clamp and process irregularly shaped thin-walled workpieces, resulting in reduced machining accuracy and deformation of workpieces.
An industrial robot upper arm processing fixture is designed, and the stable clamping and processing of irregular workpieces is achieved through a combined structure of support plate, protective cover, tie rod, press plate and pressing seat.
The fixture can effectively clamp and process irregularly shaped thin-walled workpieces, avoid deformation of the workpiece during clamping, and improve processing accuracy and efficiency.
Smart Images
Figure CN222818373U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machine tool processing. Background Art
[0002] As an important connection and load-bearing component in the entire robot system, the robot upper arm is directly related to the robot's strength, accuracy and performance. To ensure the robot's movement speed, its design must reduce weight to reduce the rotational inertia of the entire arm to the rotary axis. To ensure the connection accuracy and movement accuracy of each component of the robot, its design has relatively high requirements for dimensional accuracy. Especially for food-grade robots, from the perspective of hygiene and safety, the coordination of each component must be very precise.
[0003] At present, conventional CNC machine tool fixtures are only suitable for processing regular workpieces. When processing irregular and thin-walled workpieces such as robot upper arms, it is necessary to replace the fixture or adjust the clamping position, which not only increases labor intensity and processing costs, but also causes secondary clamping of the workpiece, affecting the processing accuracy. In addition, conventional CNC machine tool fixtures are not effective in processing thin-walled parts, and it is easy to cause clamping deformation, thereby affecting the dimensional accuracy of the workpiece. Utility Model Content
[0004] In order to solve the problem that the existing clamps are not easy to clamp irregularly shaped thin-walled parts and easily cause the thin-walled parts to deform, the utility model provides an industrial robot upper arm processing clamp.
[0005] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:
[0006] An industrial robot upper arm processing fixture, a protective cover 11 is installed on one side of a support plate 2, a pull rod 15 is slidably installed on the support plate 2 and is located in the protective cover 11, and one end of the pull rod 15 located in the protective cover 11 is respectively provided with grooves 23 at the upper and lower ends, a pressure plate 19 is rotatably installed in the protective cover 11, and the inner end of the pressure plate 19 is located in the groove 23, and a limiting hole 13 is provided on the protective cover 11 corresponding to the outer end of the pressure plate 19, and the pressure plate 19 is located in the limiting hole 13, and a clamping seat 20 that matches the outer end of the pressure plate 19 is installed on the outside of the protective cover 11 on the support plate 2, and the other end of the pull rod 15 is connected to the threaded rod 17, and a limiting member is installed on the other side of the support plate 2, and the threaded rod 17 is rotatably installed on the limiting member.
[0007] The first support 4 and the second support 10 are respectively installed above and below the clamping seat 20 on the support plate 2, a pin seat 9 is installed at the front end of the first support 4, and the pin seat 9 is connected to one end of a swing rod 7 matching the shape of the workpiece to be clamped through a second pin 8, and a strip hole 14 is provided on the second support 10, and a connecting rod 6 is installed in the strip hole 14 through the first pin 5, and the other end of the swing rod 7 is sleeved on the connecting rod 6, and a butterfly nut 25 is installed on the connecting rod 6 and above the swing rod 7.
[0008] A bracket 3 is installed on the support plate 2 outside the pressing seat 20 , and a tightening bolt 12 matched with the outer wall of the pressing seat 20 is installed on the bracket 3 .
[0009] Clamping bolts 27 are installed on the first support 4 and the second support 10 opposite to each other.
[0010] The limiting member includes a partition 16 and a limiting block 18. The partition 16 is installed on the support plate 2, and the limiting block 18 is installed on the partition 16. A limiting cavity is formed between the limiting block 18 and the partition 16. A rotating block 21 is provided on the threaded rod 17, and the rotating block 21 is located in the limiting cavity.
[0011] A clamping bolt 26 is installed on the swing rod 7 .
[0012] The pressing seat 20 is annular, and an annular protrusion 22 is provided on the inner edge of the pressing seat 20 .
[0013] A limiting bolt 24 is coaxially installed on the top of the protective cover 11 and the pull rod 15 .
[0014] The bottom of the support plate 2 is mounted with the base plate 1 .
[0015] The advantages of the utility model compared with the prior art are:
[0016] Place the bottom of the thin-walled workpiece on the clamping seat, rotate the threaded rod to move the pull rod toward the workpiece, and then rotate the pressure plate. The bottom edge of the thin-walled workpiece is clamped through the cooperation of the pressure plate and the clamping seat to clamp the workpiece. This realizes the clamping of irregular workpieces, and the clamping position is the edge of the bottom of the workpiece, which will not cause the workpiece to deform during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a stereoscopic diagram of the upper arm processing fixture of the industrial robot of the utility model.
[0018] Figure 2 It is a front view of the upper arm processing fixture of the industrial robot of the utility model.
[0019] Figure 3 This is a new type of industrial robot upper arm processing fixture Figure 2 CC cross-sectional view.
[0020] Figure 4 This is a new type of industrial robot upper arm processing fixture Figure 2 AA partial cross-sectional view.
[0021] Figure 5 This is a new type of industrial robot upper arm processing fixture Figure 2 Partial cross-sectional view of BB.
[0022] In the figure: 1. bottom plate; 2. support plate; 3. bracket; 4. first support; 5. first pin; 6. connecting rod; 7. rocker arm; 8. second pin; 9. pin seat; 10. second support; 11. protective cover; 12. tightening bolt; 13. limiting hole; 14. strip hole; 15. pull rod; 16. partition; 17. threaded rod; 18. limiting block; 19. pressure plate; 20. clamping seat; 21. rotating block; 22. annular protrusion; 23. slot; 24. limiting bolt; 25. butterfly nut; 26. clamping bolt; 27 clamping bolt. DETAILED DESCRIPTION
[0023] The industrial robot upper arm processing fixture provided by the utility model is as follows Figure 1 , 4 As shown in Figure 5, the bottom of the support plate 2 is installed with the bottom plate 1, and the protective cover 11 is installed on one side of the support plate 2. A pull rod 15 that penetrates the support plate 2 is slidably installed in the protective cover 11 on the support plate 2. The upper and lower ends of the pull rod 15 located in the protective cover 11 are respectively provided with a card groove 23, and the card groove 23 can also be an annular groove structure arranged along the circumference of the pull rod 15. A pressing plate 19 is rotatably installed in the protective cover 11, and the inner end of the pressing plate 19 is located in the card groove 23. The outer end of the corresponding pressing plate 19 on the protective cover 11 is provided The limiting hole 13, the pressure plate 19 is located in the limiting hole 13, the top of the protective cover 11 is coaxially installed with the limiting bolt 24, the limiting bolt 24 prevents the railing 15 from excessive movement, the support plate 2 is located on the outside of the protective cover 11 and is installed with an annular clamping seat 20 that matches the other end of the clamping plate 19, and an annular protrusion 22 is provided on the inner edge of the clamping seat 20, the other end of the pull rod 15 is threadedly connected to the threaded rod 17, and the other side of the support plate 2 is installed with a limiting member, and the threaded rod 17 is rotatably installed on the limiting member. The limiting member includes a partition 16 and a limiting block 18, the partition 16 is installed on the support plate 2, the limiting block 18 is installed on the partition 16, and a limiting cavity is formed between the limiting block 18 and the partition 16, and a rotating block 21 is provided on the threaded rod 17, and the rotating block 21 is located in the limiting cavity. The support plate 2 is located on the outside of the clamping seat 20 and is installed with a bracket 3, and the bracket 3 is installed with a top bolt 12 that matches the outer wall of the clamping seat 20.
[0024] like Figure 1-3 As shown, the first support 4 and the second support 10 are respectively installed above and below the clamping seat 20 on the support plate 2, the pin seat 9 is installed on the first support 4, the pin seat 9 is connected to one end of the swing rod 7 matching the shape of the workpiece to be clamped through the second pin 8, the swing rod 7 is installed with a clamping bolt 26, the second support 10 is provided with a strip hole 14, the strip hole 14 is installed with a connecting rod 6 through the first pin 5, the other end of the swing rod 7 is sleeved on the connecting rod 6, and a butterfly nut 25 is installed on the connecting rod 6 and above the swing rod 7. Clamping bolts 27 are installed on the first support 4 and the second support 10 relative to each other.
[0025] Working principle: lift the rocker arm 7, place the thin-walled workpiece of the robot's upper arm on the annular protrusion 22 of the clamping seat 20, rotate the threaded rod 17, and then move the pull rod 15 toward the workpiece through threaded cooperation, and then push the pressure plate 19 to rotate through the slot 23, so that the end of the pressure plate 19 located outside the protective cover 11 moves along the limiting hole 13 and clamps the inner edge of the bottom of the workpiece together with the annular protrusion 22; then rotate the clamping bolt 12, so that the clamping bolt 12 and the outer wall of the clamping seat 20 clamp the side wall of the workpiece together, and rotate the clamping bolts 27 on the first support 4 and the second support 10, so that the clamping bolts 27 on both sides of the workpiece clamp the workpiece together; then put the lifted end of the rocker arm 7 on the connecting rod 6, and tighten the butterfly nut 25 to fix the rocker arm 7, and tighten the clamping bolt 26 to provide clamping force to the workpiece from the top of the workpiece, so as to realize all-round clamping of the workpiece, which can adapt to irregular-shaped workpieces and the workpiece is not easily deformed when clamped.
[0026] The present invention is described by way of embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the guidance of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the protection scope of the present invention.
Claims
1. Industrial robot upper arm processing fixture, characterized in that: A protective cover (11) is installed on one side of the support plate (2), and a pull rod (15) is slidably installed in the protective cover (11) on the support plate (2), and one end of the pull rod (15) located in the protective cover (11) is provided with a clamping groove (23) at the upper and lower ends, respectively. A pressure plate (19) is rotatably installed in the protective cover (11), and the inner end of the pressure plate (19) is located in the clamping groove (23). A limiting hole (13) is provided on the protective cover (11) corresponding to the outer end of the pressure plate (19), and the pressure plate (19) is located in the limiting hole (13). A pressing seat (20) matched with the outer end of the pressure plate (19) is installed on the outer side of the protective cover (11) on the support plate (2), and the other end of the pull rod (15) is connected to the threaded rod (17). A limiting member is installed on the other side of the support plate (2), and the threaded rod (17) is rotatably installed on the limiting member.
2. The industrial robot upper arm processing fixture according to claim 1, characterized in that: The support plate (2) is provided with a first support (4) and a second support (10) respectively mounted above and below the clamping seat (20); a pin shaft seat (9) is mounted at the front end of the first support (4); the pin shaft seat (9) is connected to one end of a swing rod (7) matching the shape of the workpiece to be clamped via a second pin shaft (8); a strip hole (14) is provided on the second support (10); a connecting rod (6) is mounted in the strip hole (14) via a first pin shaft (5); the other end of the swing rod (7) is sleeved on the connecting rod (6); a butterfly nut (25) is mounted on the connecting rod (6) and above the swing rod (7).
3. The industrial robot upper arm processing fixture according to claim 1, characterized in that: A bracket (3) is installed on the support plate (2) at the outer side of the pressing seat (20), and a tightening bolt (12) matched with the outer wall of the pressing seat (20) is installed on the bracket (3).
4. The industrial robot upper arm processing fixture according to claim 2, characterized in that: Clamping bolts (27) are mounted on the first support (4) and the second support (10) in a relative manner.
5. The industrial robot upper arm processing fixture according to claim 1, characterized in that: The limiting member comprises a partition (16) and a limiting block (18); the partition (16) is mounted on the support plate (2); the limiting block (18) is mounted on the partition (16); a limiting cavity is formed between the limiting block (18) and the partition (16); a rotating block (21) is provided on the threaded rod (17); and the rotating block (21) is located in the limiting cavity.
6. The industrial robot upper arm processing fixture according to claim 2, characterized in that: A clamping bolt (26) is installed on the swing rod (7).
7. The industrial robot upper arm processing fixture according to claim 1, characterized in that: The pressing seat (20) is annular, and an annular protrusion (22) is provided on the inner edge of the pressing seat (20).
8. The industrial robot upper arm processing fixture according to claim 1, characterized in that: A limiting bolt (24) is coaxially mounted on the top of the protective cover (11) and the pull rod (15).
9. The industrial robot upper arm processing fixture according to claim 1, characterized in that: The bottom of the support plate (2) is mounted on a base plate (1).