A finishing clamping device for mechanical arm accessory machining
By designing a trimming and clamping device for the opposing mechanism and the clamping mechanism, the problem of poor adaptability of traditional clamping devices is solved, enabling flexible clamping of robotic arm parts and improving processing accuracy and yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING UNIV OF TECH
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional clamping devices are difficult to adapt to robotic arm parts with different inclinations or lengths, which can easily lead to local stress concentration, positioning deviation and workpiece deformation during clamping, affecting processing accuracy and yield.
A trimming and clamping device including a counter-rotating mechanism and a clamping mechanism was designed. By setting positive and negative threaded rotating rods and a track mechanism, the length and tilt angle of the clamping plate can be adjusted. With the help of cylinder and motor drive, flexible clamping of robotic arm accessories can be achieved.
It achieves stable clamping of robotic arm parts of different shapes and sizes, improves processing accuracy and yield, and solves the problem of poor adaptability of traditional clamping devices.
Smart Images
Figure CN224310474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robotic arm parts processing technology, specifically a trimming and clamping device for robotic arm parts processing. Background Technology
[0002] In the field of robotic arm component processing, as the manufacturing industry rapidly develops towards high precision and high flexibility, the shapes and sizes of robotic arm components are becoming increasingly diverse, covering complex types such as regular geometric shapes, irregular shapes, and thin-walled structures. This poses a severe challenge to the clamping devices in the processing.
[0003] Traditional clamping devices generally suffer from rigid structures and poor adaptability. For example, fixed clamping plates are difficult to adapt to accessories with different inclinations or lengths, which can easily lead to local stress concentration, positioning deviation, or even workpiece deformation during clamping, thereby affecting machining accuracy and yield. Utility Model Content
[0004] The purpose of this utility model is to provide a trimming and clamping device for machining robotic arm parts, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a trimming and clamping device for machining robotic arm parts, comprising a base, and further comprising: a mounting frame disposed on the base, a support platform fixedly mounted on the top of the mounting frame, a through hole provided on the support platform, an opposing mechanism mounted on the mounting frame, a clamping mechanism disposed on the opposing mechanism, the opposing mechanism comprising a rotating rod, the rotating rod being rotatably connected to the mounting frame via a bearing, the rotating rod being provided with positive and negative threads, and a first slider being threadedly connected to the rotating rod.
[0006] Preferably, a first motor is fixedly installed on the base, the first motor is horizontally positioned, and the first motor is connected to one end of the rotating rod through a track mechanism.
[0007] Preferably, a slide rod is fixedly installed on the mounting bracket. The slide rod is horizontally positioned and is cylindrical in shape.
[0008] Preferably, a second slider is slidably mounted on the slide rod, and one end of the second slider and one end of the first slider are fixedly mounted on the same support frame.
[0009] Preferably, the clamping mechanism includes a shaft that is rotatably connected to the receiving frame, and one end of the shaft passes through the receiving frame and is fixedly mounted on a housing.
[0010] Preferably, the box body is square in shape, a second motor is fixedly installed on the inner wall of the box body, a lead screw is fixedly installed on the shaft end of the second motor, a clamping plate is threaded onto the lead screw, the clamping plate is square in shape, the clamping plate slides on the inner wall of the box body, and the top end of the clamping plate penetrates through the top end of the box body.
[0011] Preferably, a bracket is fixedly installed at the bottom of the receiving frame. The bracket is L-shaped, and a cylinder is fixedly installed on the surface of the bracket. The cylinder is horizontally positioned, and the piston rod end of the cylinder penetrates the inner wall of the bracket and is fixedly installed with a limit rod. The limit rod is horizontally positioned and is cylindrical in shape. A strip frame is fixedly installed on the surface of the box, and the limit rod slides on the inner wall of the strip frame.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This utility model, by providing a clamping mechanism, allows for easy adjustment of the length and tilt angle of the clamping plate according to the shape and size of the robotic arm parts, so that the clamping plate can clamp parts of different shapes. By providing a counter-clamping mechanism, it is easy to drive the clamping mechanisms on both sides to move towards each other, thereby achieving the purpose of clamping the robotic arm parts. Attached Figure Description
[0014] Figure 1 A schematic diagram of a preferred embodiment of the trimming and clamping device for machining robotic arm parts provided by this utility model;
[0015] Figure 2 A schematic diagram of the mounting bracket structure provided by this utility model;
[0016] Figure 3 A schematic diagram of the opposing mechanism provided by this utility model;
[0017] Figure 4 A schematic diagram of the clamping mechanism provided by this utility model;
[0018] Figure 5 A cross-sectional view of the box provided for this utility model.
[0019] In the diagram: 1. Base; 2. Opposing mechanism; 21. Track mechanism; 22. First motor; 23. Slide rod; 24. Rotating rod; 25. First slider; 26. Second slider; 27. Support frame; 3. Clamping mechanism; 31. Cylinder; 32. Clamping plate; 33. Bracket; 34. Strip frame; 35. Box body; 36. Shaft; 37. Second motor; 38. Lead screw; 39. Limiting rod; 4. Through hole; 5. Mounting bracket; 6. Support platform. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-5 As shown, a trimming and clamping device for machining robotic arm parts includes a base 1 and a mounting frame 5 disposed on the base 1. A support 6 is fixedly mounted on the top of the mounting frame 5. A through hole 4 is provided on the support 6. An opposing mechanism 2 is mounted on the mounting frame 5. A clamping mechanism 3 is provided on the opposing mechanism 2. The opposing mechanism 2 includes a rotating rod 24. The rotating rod 24 is rotatably connected to the mounting frame 5 through a bearing. The rotating rod 24 is provided with positive and negative threads. A first slider 25 is threadedly connected to the rotating rod 24.
[0022] It should be noted that: the base 1 is set up to support the installation of the mounting frame 5, the mounting frame 5 is set up to support the installation of the support platform 6, the support platform 6 is set up to place the robotic arm accessories, the through hole 4 is elongated and is set up to support the insertion of the clamping plate 32 to prevent interference with the movement of the clamping plate 32, and the opposing mechanism 2 is set up to facilitate the opposite movement of the clamping mechanisms 3 on both sides, thereby achieving the purpose of clamping the robotic arm accessories. The clamping mechanism 3 is set up to facilitate the adjustment of the length and tilt angle of the clamping plate 32 according to the shape and size of the robotic arm accessories, so that the clamping plate 32 can clamp accessories of different shapes. The rotating rod 24 is provided with positive and negative threads, and the positive and negative threads are symmetrically arranged with the mounting frame 5 as the center. The rotating rod 24 with positive and negative threads is set up to facilitate the movement of the first sliders 25 on both sides.
[0023] Please see Figures 1-5 As shown, a first motor 22 is fixedly installed on the base 1. The first motor 22 is horizontally positioned and is connected to one end of the rotating rod 24 through the track mechanism 21.
[0024] It should be noted that the first motor 22 has forward and reverse rotation functions. The first motor 22, together with the track mechanism 21, facilitates the rotation of the rotating rod 24.
[0025] Please see Figures 1-5 As shown, a slide rod 23 is fixedly installed on the mounting bracket 5. The slide rod 23 is horizontally set and is cylindrical in shape.
[0026] It should be noted that the slider 23 is designed to support the sliding of the second slider 26.
[0027] Please see Figures 1-5 As shown, a second slider 26 is slidably mounted on the slider 23, and one end of the second slider 26 and one end of the first slider 25 are fixedly mounted on the same support frame 27.
[0028] It should be noted that the second slider 26 and the slider 23 are provided to limit the movement of the receiving frame 27. The receiving frame 27 is provided to support the rotation of the shaft 36.
[0029] Please see Figures 1-5 As shown, the clamping mechanism 3 includes a shaft 36, which is rotatably connected to the support frame 27. One end of the shaft 36 passes through the support frame 27 and is fixedly mounted on the housing 35.
[0030] It should be noted that the shaft 36 is cylindrical in shape and is rotatably connected to the support frame 27 via a bearing. The shaft 36 is provided for the installation of the housing 35.
[0031] Please see Figures 1-5 As shown, the box 35 is square in shape. A second motor 37 is fixedly installed on the inner wall of the box 35. A lead screw 38 is fixedly installed on the shaft end of the second motor 37. A clamping plate 32 is threaded onto the lead screw 38. The clamping plate 32 is square in shape. The clamping plate 32 slides on the inner wall of the box 35. The top of the clamping plate 32 passes through the top of the box 35.
[0032] It should be noted that the housing 35 is designed to support the installation of the second motor 37, which has forward and reverse rotation functions. The second motor 37 is designed to drive the lead screw 38 to rotate, and the lead screw 38 is designed to drive the clamping plate 32 to slide linearly along the inner wall of the housing 35, thereby achieving the purpose of adjusting the length of the clamping plate 32, which is beneficial for clamping accessories of different sizes.
[0033] Please see Figures 1-5 As shown, a bracket 33 is fixedly installed at the bottom of the receiving frame 27. The bracket 33 is L-shaped. A cylinder 31 is fixedly installed on the surface of the bracket 33. The cylinder 31 is horizontally set. The piston rod end of the cylinder 31 passes through the inner wall of the bracket 33 and is fixedly installed with a limit rod 39. The limit rod 39 is horizontally set and is cylindrical. A strip frame 34 is fixedly installed on the surface of the box 35. The limit rod 39 slides on the inner wall of the strip frame 34.
[0034] It should be noted that: the bracket 33 is set up to support the installation of the cylinder 31; the cylinder 31 is set up to drive the limit rod 39 to move linearly; the limit rod 39 is set up to slide on the inner wall of the strip frame 34; and the strip frame 34 is set up to support the sliding of the limit rod 39.
[0035] Working principle: When it is necessary to clamp and fix the robotic arm parts, place the robotic arm parts on the support platform 6, and according to the size and shape of the robotic arm parts, first start the second motor 37. The second motor 37 drives the lead screw 38 to rotate. When the lead screw 38 rotates, it will drive the clamping plate 32 to slide linearly along the inner wall of the box 35 until the clamping plate 32 moves out of the box 35 by an appropriate length. Then, according to the shape of the robotic arm parts, start the cylinder 31. The cylinder 31 drives the limit rod 39 to move. When the limit rod 39 moves, it will drive the box 35 to deflect around the shaft 36 through the strip frame 34. When the box 35 deflects, it will drive the clamping plate 32 to deflect until the clamping plate 32 deflects to a suitable tilt angle.
[0036] After the tilt angle and length of the clamping plate 32 are adjusted, the first motor 22 is started. The first motor 22 drives the rotating rod 24 to rotate through the track mechanism 21. When the rotating rod 24 rotates, due to the positive and negative threads on its surface, it will drive the receiving frame 27 to move through the first slider 25. Under the limiting action of the second slider 26 and the sliding rod 23, the two receiving frames 27 will move towards each other. When the two receiving frames 27 move towards each other, they will drive the clamping plate 32 to move towards each other through the shaft 36 and the box 35 until the clamping plate 32 clamps and fixes the robotic arm parts, which is convenient for the subsequent processing of the robotic arm parts.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A finishing clamp device for machining of a mechanical arm fitting, comprising a base (1), characterized in that, Also includes: A mounting bracket (5) is set on the base (1). A support platform (6) is fixedly installed on the top of the mounting bracket (5). A through hole (4) is opened on the support platform (6). A facing mechanism (2) is installed on the mounting bracket (5). A clamping mechanism (3) is provided on the facing mechanism (2). The facing mechanism (2) includes a rotating rod (24). The rotating rod (24) is rotatably connected to the mounting bracket (5) through a bearing. The rotating rod (24) is provided with positive and negative threads. A first slider (25) is threadedly connected to the rotating rod (24).
2. The finishing and clamping device for machining of mechanical arm accessories according to claim 1, characterized in that: A first motor (22) is fixedly installed on the base (1). The first motor (22) is horizontally arranged and connected to one end of the rotating rod (24) through the track mechanism (21).
3. The finishing clamp device for machining of mechanical arm accessories according to claim 1, characterized in that: A slide rod (23) is fixedly installed on the mounting bracket (5). The slide rod (23) is horizontally arranged and is cylindrical in shape.
4. The finishing clamp apparatus for machining of a mechanical arm accessory according to claim 3, characterized in that: A second slider (26) is slidably mounted on the slider (23), and one end of the second slider (26) and one end of the first slider (25) are fixedly mounted on the same support frame (27).
5. The finishing clamp apparatus for machining of a mechanical arm accessory according to claim 4, characterized in that: The clamping mechanism (3) includes a shaft (36), which is rotatably connected to the support frame (27). One end of the shaft (36) passes through the support frame (27) and is fixedly mounted with a housing (35).
6. The finishing clamp apparatus for machining of a mechanical arm accessory according to claim 5, characterized in that: The box (35) is square in shape. A second motor (37) is fixedly installed on the inner wall of the box (35). A lead screw (38) is fixedly installed on the shaft end of the second motor (37). A clamping plate (32) is threaded onto the lead screw (38). The clamping plate (32) is square in shape. The clamping plate (32) slides on the inner wall of the box (35). The top end of the clamping plate (32) penetrates the top end of the box (35).
7. A trimming and clamping device for machining robotic arm parts according to claim 6, characterized in that: A bracket (33) is fixedly installed at the bottom of the receiving frame (27). The bracket (33) is L-shaped. A cylinder (31) is fixedly installed on the surface of the bracket (33). The cylinder (31) is horizontally arranged. The piston rod end of the cylinder (31) passes through the inner wall of the bracket (33) and is fixedly installed with a limiting rod (39). The limiting rod (39) is horizontally arranged and is cylindrical. A strip frame (34) is fixedly installed on the surface of the box (35). The limiting rod (39) slides on the inner wall of the strip frame (34).