Mechanical arm clamp
By designing a robotic arm clamp that includes a fixed base, a clamping frame, an expansion structure and a fixed structure, the problems of long replacement time and weak fixation of the existing clamps are solved, achieving rapid adaptation and stable fixation of different parts, and improving improve processing quality.
Patent Information
- Application Number
- CN202420464249.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-03-11
AI Technical Summary
When replacing and clamping parts with special shape or length, existing robotic arm fixtures have problems such as long replacement time and unfixed fixation, which affects the processing and production quality of the parts.
A mechanical arm clamp including a fixed base, a clamping frame, an expansion structure and a fixed structure is designed. Through the cooperation of the mounting hole and the mounting base, the clamping frame can be quickly installed and disassembled. The expansion structure such as the extension frame and the second clamping block are connected through threaded connection and bearing rotation to adapt to the length and shape of different parts; fixed structures such as bumps, The slot and spring are missing, and the clamping frame is fixed by the elastic force of the spring.
It realizes the rapid installation and disassembly of the clamp, adapts to the length and shape of different parts, and improves the fixing stability and processing quality of the parts.
Smart Images
Figure CN222371624U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of supporting equipment for a mechanical arm, and more specifically, to a mechanical arm clamp. Background Art
[0002] Robotic arms are very common in industrial production. Generally, robotic arms are used to clamp parts or other products or to change the position of heavy parts by the drive of the robotic arms, which greatly facilitates the needs of industrial production. When clamping parts, it is necessary to install a clamp at the front end of the robotic arm to clamp the parts. When clamping different parts, the clamp needs to be replaced. The existing clamp is installed on the robotic arm through the cooperation of bolts and threads. When replacing, it is necessary to unscrew the bolts and other operations to disassemble it. The replacement time is long, which makes it inconvenient to quickly replace the clamp. In addition, the existing clamps generally lack an expansion structure. When clamping some long or special-shaped structures, the parts cannot be effectively fixed, and the parts are easy to fall off during the movement, which affects the processing of the parts and the quality of the parts production. Utility Model Content
[0003] 1. Technical issues to be solved
[0004] In view of the problems existing in the prior art, the utility model provides a mechanical arm clamp to solve the technical problems mentioned in the background technology.
[0005] (II) Technical solution
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical arm clamp, comprising a fixed seat, a clamping frame detachably provided on the fixed seat, a mounting hole opened on the fixed seat, a mounting seat matched with the mounting hole fixedly provided on the clamping frame, a fixing structure provided on the clamping frame, a first clamping block movably provided on the clamping frame, a plurality of the first clamping blocks are provided, and the clamping frame is conveniently installed on the fixed seat through the fixing structure;
[0007] An expansion structure is provided at the side end of the clamping frame, and the expansion structure includes an extension frame, a second clamping block and a first threaded rod. The second clamping block is provided on the extension frame, and the first threaded rod is rotatably connected to the extension frame through a bearing. The first threaded rod passes through the second clamping block, and the second clamping block is threadedly connected to the first threaded rod, thereby facilitating the clamping of longer parts.
[0008] The utility model is further configured such that the fixing structure includes a fixing frame, an insertion rod and a spring, a protrusion is fixedly provided at the front end of the insertion rod, a through hole cooperating with the protrusion is opened on the fixing seat, and a notch cooperating with the protrusion is provided on the fixing seat at the opening position of the through hole, so that the clamping frame is fixed by the engagement of the protrusion and the notch.
[0009] The utility model is further configured as follows: the spring sleeve is installed on the insertion rod, a limiting plate is provided at the front end of the insertion rod, the limiting plate is threadedly connected to the insertion rod, the spring is arranged between the fixing frame and the limiting plate, and the protrusion and the notch are engaged by the elastic force of the spring itself, thereby completing the fixation of the clamping frame.
[0010] The utility model is further configured as follows: a second threaded rod is provided in the clamping frame, the second threaded rod is rotatably connected to the clamping frame via a bearing, the second threaded rod passes through the first clamping block and is threadedly connected to the first clamping block, and a mounting plate is rotatably provided on the first clamping block to facilitate the movement of the first clamping block.
[0011] The utility model is further configured as follows: an arc-shaped clamp block and a long block are fixedly provided on the mounting plate, and a plurality of the arc-shaped clamp block and the long block are provided. A rotating column is fixedly provided on the first clamp block, and a rotating hole cooperating with the rotating column is opened on the mounting plate. The rotating column and the rotating hole are connected by bearings, thereby facilitating the rotation of the mounting plate.
[0012] The utility model is further configured such that limiting holes are provided on the mounting plate and the first clamping block, threads are provided in the limiting holes, and the limiting holes provided on the mounting plate and the limiting holes provided on the first clamping block are connected by the cooperation of bolts and threads, thereby facilitating the fixing of the mounting plate.
[0013] The utility model is further configured such that a sliding groove is provided on the side end of the clamping frame, a connecting block cooperating with the sliding groove is fixedly provided on the extension frame, the connecting block and the sliding groove are slidingly connected, a support plate is detachably provided on the second clamping block, a mounting column is fixedly provided on the second clamping block, and a thread is provided on the top of the mounting column to facilitate the movement of the extension frame.
[0014] The utility model is further configured such that positioning holes are provided on both the connecting block and the clamping frame, a plurality of positioning holes are provided on the clamping frame, threads are provided in the positioning holes, and the positioning holes on the connecting block are connected to the positioning holes on the clamping frame by the cooperation of bolts and threads, thereby facilitating the fixing of the extension frame.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the present invention provides a mechanical arm fixture having the following features:
[0017] Beneficial effects:
[0018] 1. The utility model provides a fixing structure on the clamping frame. When the clamping frame is installed on the fixing seat, the clamping frame is installed on the fixing seat through the cooperation of the installation hole and the installation seat, the insertion rod is pushed to move, and the protrusion enters the fixing seat through the cooperation of the protrusion and the through hole, and the insertion rod is rotated to make the protrusion cooperate with the notch. The elastic force of the spring itself pushes the limit plate to drive the insertion rod to rise, thereby fixing the clamping frame on the fixing seat, which is convenient for rapid installation and disassembly of the clamping frame.
[0019] 2. The utility model sets an expansion structure at the side end of the clamping frame, and installs the extension frame through the cooperation of the slide groove and the connecting block, so that according to the length of the parts to be clamped, the extension frame is moved to adjust the position of the second clamping block, which is convenient for rotating the first threaded rod to drive the second clamping block to move, so as to clamp different positions of longer parts, and facilitate supporting and changing the position of longer parts.
[0020] 3. The utility model provides a mounting plate on the first clamping block, and an arc-shaped clamping block and a long block are provided on the mounting plate. When clamping special-shaped parts, the mounting plate is rotated by cooperating with the rotating column and the rotating hole according to whether the clamping position is an arc or a straight line, and the arc-shaped clamping block or the long block is selected for clamping, thereby facilitating the clamping of special-shaped parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of a robotic arm fixture;
[0022] Figure 2 It is a schematic diagram of the back structure of a robotic arm fixture;
[0023] Figure 3 It is a schematic diagram of the matching structure of a clamping frame and a fixing seat of a mechanical arm clamp;
[0024] Figure 4 It is a schematic diagram of the matching structure of a first clamping block and a mounting plate of a mechanical arm clamp;
[0025] Figure 5 It is a structural schematic diagram of an extended structure of a robotic arm fixture;
[0026] Figure 6 The figure is a schematic diagram of the structure of a fixing seat of a robot arm clamp.
[0027] In the figure: 1. fixing seat; 2. clamping frame; 3. mounting hole; 4. mounting seat; 5. first clamping block; 6. extension frame; 7. second clamping block; 8. first threaded rod; 9. fixing frame; 10. plug-in rod; 11. spring; 12. protrusion; 13. through hole; 14. slot; 15. limiting plate; 16. second threaded rod; 17. mounting plate; 18. arc clamping block; 19. long block; 20. rotating column; 21. rotating hole; 22. limiting hole; 23. slide groove; 24. connecting block; 25. support plate; 26. mounting column; 27. positioning hole. DETAILED DESCRIPTION
[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.
[0030] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.
[0031] See also Figure 1-5 A mechanical arm clamp comprises a fixed seat 1, a clamping frame 2 is detachably provided on the fixed seat 1, a mounting hole 3 is opened on the fixed seat 1, a mounting seat 4 matched with the mounting hole 3 is fixedly provided on the clamping frame 2, a fixing structure is provided on the clamping frame 2, a first clamping block 5 is movably provided on the clamping frame 2, and a plurality of first clamping blocks 5 are provided;
[0032] An expansion structure is provided at the side end of the clamping frame 2, and the expansion structure includes an extension frame 6, a second clamping block 7 and a first threaded rod 8. The second clamping block 7 is provided on the extension frame 6, and the first threaded rod 8 is rotatably connected to the extension frame 6 through a bearing. The first threaded rod 8 passes through the second clamping block 7, and the second clamping block 7 and the first threaded rod 8 are threadedly connected.
[0033] In this embodiment, the fixing seat 1 is installed on the robot arm by bolts, the clamping frame 2 is installed on the fixing seat 1 by the cooperation between the mounting hole 3 and the mounting seat 4, the clamping frame 2 is fixed by the fixing structure, and the parts are clamped by the cooperation between the first clamping blocks 5.
[0034] More specifically, by installing the extension frame 6 on the clamping frame 2, rotating the second threaded rod 16, and through the threaded cooperation between the second threaded rod 16 and the second clamping block 7, the rotation of the second threaded rod 16 drives the second clamping block 7 to move, thereby clamping different parts of the parts.
[0035] See also Figure 1-Figure 5 As an implementation method for fixing the clamping frame 2: the fixing structure includes a fixing frame 9, an insert rod 10 and a spring 11, a protrusion 12 is fixedly provided at the front end of the insert rod 10, a through hole 13 cooperating with the protrusion 12 is opened on the fixing seat 1, and a notch 14 cooperating with the protrusion 12 is provided at the opening position of the through hole 13 on the fixing seat 1, the spring 11 is sleeved and installed on the insert rod 10, a limiting piece 15 is provided at the front end of the insert rod 10, the limiting piece 15 is threadedly connected to the insert rod 10, and the spring 11 is arranged between the fixing frame 9 and the limiting piece 15;
[0036] Specifically, the clamping frame 2 is installed on the fixed seat 1 through the cooperation of the mounting hole 3 and the mounting seat 4, the insertion rod 10 is pushed to move, and the protrusion 12 enters the fixed seat 1 through the cooperation of the protrusion 12 and the through hole 13, and the insertion rod 10 is rotated to make the protrusion 12 cooperate with the groove 14. The elastic force of the spring 11 itself pushes the limit plate 15 to drive the insertion rod 10 to rise, thereby fixing the clamping frame 2 on the fixed seat 1.
[0037] Please refer to Figure 1-5 As an implementation method for clamping different parts: a second threaded rod 16 is arranged in the clamping frame 2, and the second threaded rod 16 is rotatably connected to the clamping frame 2 through a bearing, the second threaded rod 16 passes through the first clamping block 5, and is threadedly connected to the first clamping block 5, a mounting plate 17 is rotatably arranged on the first clamping block 5, an arc clamping block 18 and a long block 19 are fixedly arranged on the mounting plate 17, and a plurality of arc clamping blocks 18 and long blocks 19 are arranged, a rotating column 20 is fixedly arranged on the first clamping block 5, a rotating hole 21 matching with the rotating column 20 is opened on the mounting plate 17, and the rotating column 20 and the rotating hole 21 are connected by a bearing, a limiting hole 22 is opened on the mounting plate 17 and the first clamping block 5, and a thread is arranged in the limiting hole 22, and the mounting plate 17 The limiting hole 22 opened on the upper part is connected with the limiting hole 22 opened on the first clamping block 5 by the cooperation of bolts and threads. A slide groove 23 is opened on the side end of the clamping frame 2. A connecting block 24 cooperating with the slide groove 23 is fixedly provided on the extension frame 6. The connecting block 24 is slidably connected with the slide groove 23. A supporting plate 25 is detachably provided on the second clamping block 7. A mounting column 26 is fixedly provided on the second clamping block 7. The top of the mounting column 26 is provided with a thread. Positioning holes 27 are opened on the connecting block 24 and the clamping frame 2. There are multiple positioning holes 27 opened on the clamping frame 2. Threads are set in the positioning holes 27. The positioning holes 27 opened on the clamping frame 2 are connected with the positioning holes 27 opened on the clamping frame 2 by the cooperation of bolts and threads.
[0038] Specifically, when clamping a part with an arc structure, the first threaded rod 8 is rotated to drive the first clamping block 5 to move, and the mounting plate 17 is rotated by rotating the rotating column 20 and the rotating hole 21 to rotate the arc clamping block 18 to one side of the part, and the bolts are inserted into the limiting holes 22 opened on the mounting plate 17 and the first clamping block 5 to complete the fixation of the mounting plate 17, thereby fixing the arc position of the part through the arc clamping block 18. When clamping a part with a longer length, the extension frame 6 is slid through the cooperation of the connecting block 24 and the slide groove 23. When the extension frame 6 reaches the desired position, the bolt is inserted into the positioning hole 27 to fix the position of the extension frame 6, and the support plate 25 is installed on the second clamping block 7 which is relatively low through the cooperation with the mounting column 26. The support plate 25 is fixed by the cooperation of the mounting column 26 and the nut, and the edge of the part is supported by the second clamping block 7.
[0039] In summary, when used as a whole:
[0040] When the clamping frame 2 is connected to the robot arm, the clamping frame 2 is installed on the fixed seat 1 through the cooperation of the mounting hole 3 and the mounting seat 4, and the insertion rod 10 is pushed to move. The protrusion 12 enters the fixed seat 1 through the cooperation of the protrusion 12 and the through hole 13, and the insertion rod 10 is rotated to make the protrusion 12 cooperate with the notch 14. The limit plate 15 is pushed by the elastic force of the spring 11 itself to drive the insertion rod 10 to rise, thereby fixing the clamping frame 2 on the fixed seat 1.
[0041] When clamping special-shaped parts, when clamping parts with arc-shaped structures, the first threaded rod 8 is rotated to drive the first clamping block 5 to move, and the mounting plate 17 is rotated by rotating the rotating column 20 and the rotating hole 21 to rotate the arc-shaped clamping block 18 to one side of the part, and the bolts are inserted into the limiting holes 22 opened on the mounting plate 17 and the first clamping block 5 to complete the fixation of the mounting plate 17, thereby fixing the arc-shaped position of the part through the arc-shaped clamping block 18.
[0042] When fixing a longer part, the extension frame 6 is slid through the cooperation of the connecting block 24 and the slide groove 23. When the extension frame 6 reaches the desired position, the bolt is inserted into the positioning hole 27 to fix the position of the extension frame 6. The support plate 25 is installed on the lower second clamping block 7 through cooperation with the mounting column 26. The support plate 25 is fixed by the cooperation of the mounting column 26 and the nut, and the edge of the part is supported by the second clamping block 7.
[0043] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.
Claims
1. A mechanical arm fixture, comprising a fixing seat (1), characterized in that: The fixing seat (1) is detachably provided with a clamping frame (2), the fixing seat (1) is provided with a mounting hole (3), the clamping frame (2) is fixedly provided with a mounting seat (4) matching with the mounting hole (3), the clamping frame (2) is provided with a fixing structure, the clamping frame (2) is movably provided with a first clamping block (5), and a plurality of the first clamping blocks (5) are provided; An expansion structure is provided at the side end of the clamping frame (2), and the expansion structure comprises an extension frame (6), a second clamping block (7) and a first threaded rod (8), wherein the second clamping block (7) is provided on the extension frame (6), the first threaded rod (8) is rotatably connected to the extension frame (6) via a bearing, the first threaded rod (8) passes through the second clamping block (7), and the second clamping block (7) and the first threaded rod (8) are threadedly connected.
2. A mechanical arm fixture according to claim 1, characterized in that: The fixing structure comprises a fixing frame (9), an insert rod (10) and a spring (11); a protrusion (12) is fixedly provided at the front end of the insert rod (10); a through hole (13) cooperating with the protrusion (12) is provided on the fixing seat (1); and a notch (14) cooperating with the protrusion (12) is provided on the fixing seat (1) at the opening position of the through hole (13).
3. A mechanical arm fixture according to claim 2, characterized in that: The spring (11) is sleeved and mounted on the insertion rod (10); a limit plate (15) is provided at the front end of the insertion rod (10); the limit plate (15) and the insertion rod (10) are threadedly connected; and the spring (11) is provided between the fixing frame (9) and the limit plate (15).
4. The mechanical arm fixture according to claim 1, characterized in that: A second threaded rod (16) is arranged in the clamping frame (2), and the second threaded rod (16) is rotatably connected to the clamping frame (2) via a bearing. The second threaded rod (16) passes through the first clamping block (5) and is threadably connected to the first clamping block (5). A mounting plate (17) is rotatably arranged on the first clamping block (5).
5. A mechanical arm fixture according to claim 4, characterized in that: The mounting plate (17) is fixedly provided with an arc-shaped clamping block (18) and a long block (19), and a plurality of the arc-shaped clamping blocks (18) and the long blocks (19) are provided. A rotating column (20) is fixedly provided on the first clamping block (5), and a rotating hole (21) cooperating with the rotating column (20) is provided on the mounting plate (17). The rotating column (20) and the rotating hole (21) are connected by a bearing.
6. A mechanical arm fixture according to claim 5, characterized in that: The mounting plate (17) and the first clamping block (5) are both provided with a limiting hole (22), a thread is provided in the limiting hole (22), and the limiting hole (22) provided on the mounting plate (17) and the limiting hole (22) provided on the first clamping block (5) are connected by the cooperation of a bolt and a thread.
7. The mechanical arm fixture according to claim 1, characterized in that: A sliding groove (23) is provided at the side end of the clamping frame (2), a connecting block (24) cooperating with the sliding groove (23) is fixedly provided on the extension frame (6), and the connecting block (24) is slidably connected to the sliding groove (23), a supporting plate (25) is detachably provided on the second clamping block (7), and a mounting column (26) is fixedly provided on the second clamping block (7), and a thread is provided on the top end of the mounting column (26).
8. A mechanical arm fixture according to claim 7, characterized in that: The connection block (24) and the clamping frame (2) are both provided with positioning holes (27), a plurality of positioning holes (27) are provided on the clamping frame (2), threads are provided in the positioning holes (27), and the positioning holes (27) provided on the connection block (24) and the positioning holes (27) provided on the clamping frame (2) are connected by the cooperation of bolts and threads.