Clamping assembly and mechanical arm

Abstract

The utility model discloses a clamping assembly and a mechanical arm, and belongs to the technical field of mechanical arms, the clamping assembly comprises a box body, the top of the box body is provided with a mechanical arm body, the mechanical arm body is provided with a box body, one side of the box body is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a bidirectional lead screw, and the output end of the bidirectional lead screw is fixedly connected with a second motor. The two-way lead screw is rotationally connected into the box body through a bearing, two movable plates are connected to the two-way lead screw in a threaded mode, a connecting block is fixedly connected to the bottom of each movable plate, a U-shaped frame is fixedly connected to the bottom of each connecting block, and a U-shaped plate is fixedly connected to one side of each U-shaped frame. According to the clamping assembly and the mechanical arm, the U-shaped frame, the clamping plates, the limiting holes, the T-shaped limiting rods and the springs are arranged, and the clamping plates are disassembled and assembled, so that the clamping plates can be conveniently replaced by clamping plates in different shapes, the clamping plates can be conveniently matched with objects in different shapes, the clamping area is enlarged, and the clamping stability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of robotic arm technology, specifically a clamping component and a robotic arm. Background Technology

[0002] A robotic arm is a highly flexible automated device that mimics some of the functions of a human arm. It can perform precise operations in various fields such as industrial production, medical surgery, and scientific research. Robotic arms typically work in conjunction with gripping components to pick up items and place them in a designated position to complete a series of processing steps. However, the gripping components on existing robotic arms generally have a fixed shape for the clamping plates, while items come in various shapes. A single-shaped clamping plate is difficult to match with items of different shapes, resulting in a small clamping area and making it easy for the gripping to become unstable, causing the items to fall. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a clamping component and a robotic arm, which solves the problem that the clamping components on existing robotic arms generally have a fixed shape of clamping plate. The single-shaped clamping plate is difficult to match with items of different shapes, resulting in a small clamping area of ​​the clamping plate and easy instability in clamping, which leads to the phenomenon of items falling.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a clamping assembly and a robotic arm, comprising a housing, a robotic arm body disposed on the top of the housing, a box body disposed on the robotic arm body, a second motor fixedly connected to one side of the box body, a bidirectional lead screw fixedly connected to the output end of the second motor, the bidirectional lead screw being rotatably connected to the box body via bearings, two movable plates threadedly connected to the bidirectional lead screw, a connecting block fixedly connected to the bottom of the movable plates, and a U-shaped frame fixedly connected to the bottom of the connecting block;

[0005] A U-shaped plate is fixedly connected to one side of the U-shaped frame, and a T-shaped limiting rod is slidably connected to the U-shaped plate. A circular plate is fixedly connected to the T-shaped limiting rod, and a spring is sleeved on the T-shaped limiting rod. A clamping plate is provided inside the U-shaped frame, and a limiting hole is opened on the clamping plate. One end of the T-shaped limiting rod extends into the limiting hole.

[0006] As a further embodiment of this utility model: a second sliding groove is provided at the bottom of the box body, the connecting block is slidably connected in the second sliding groove, and a plastic pad is fixedly connected to one side of the clamping plate.

[0007] As a further embodiment of this utility model: two first sliding grooves are provided on the box body, a moving plate is fixedly connected to the bottom of the robotic arm body, and a first motor is fixedly connected to one side of the box body.

[0008] As a further embodiment of this utility model: a support plate is provided at the bottom of the first motor, the support plate is fixed to the housing, and a screw is fixedly connected to the output end of the first motor, the screw being rotatably connected to the housing through a bearing.

[0009] As a further embodiment of this utility model: a fixing rod is fixedly connected inside the box, and four connecting plates are fixedly connected to the bottom of the movable plate.

[0010] As a further embodiment of this utility model: the connecting plates are slidably connected inside the first groove, wherein two of the connecting plates are slidably connected to the fixed rod, and the other two connecting plates are threadedly connected to the screw rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This clamping assembly and robotic arm, through the setting of a U-shaped frame, clamping plate, limiting hole, T-shaped limiting rod and spring, in use, the second motor is started to drive the bidirectional lead screw to rotate, so that the two movable plates, connecting block, U-shaped frame and clamping plate are brought closer together, thereby clamping the item. When it is necessary to disassemble the clamping plate, pull the T-shaped limiting rod to disengage it from the limiting hole, releasing the clamping plate from its fixed state, at which point the clamping plate can be disassembled. When it is necessary to install the clamping plate, pull the T-shaped limiting rod to move the circular plate, which will compress the spring. At this time, the clamping plate is placed into the U-shaped frame, and the T-shaped limiting rod is released, so that the spring returns to its original position and pushes the circular plate to move. The circular plate drives the T-shaped limiting rod to move and insert the T-shaped limiting rod into the limiting hole, thereby fixing the clamping plate and completing the clamping plate installation. By disassembling and assembling the clamping plate, it is easy to replace the clamping plate with clamping plates of different shapes, making it easy for the clamping plate to match different shaped items, expanding the clamping area, and thus improving clamping stability.

[0013] 2. The clamping assembly and robotic arm, by setting up a screw, a first motor, a connecting plate and the robotic arm body, when it is necessary to adjust the position of the robotic arm body, the first motor is started to drive the screw to rotate. Since the two connecting plates are threadedly connected to the screw, when the screw rotates, the connecting plate, the moving plate and the robotic arm body move, thereby completing the position adjustment of the robotic arm body. By adjusting the position of the robotic arm body, the working range of the robotic arm body is expanded. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a structural schematic diagram of the cross-section of the box body of this utility model;

[0016] Figure 3This is a three-dimensional structural diagram of the box body of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0018] Figure 5 This is a structural schematic diagram of the cross-section of the box body of this utility model;

[0019] In the diagram: 1. Box body; 2. First slide rail; 3. Moving plate; 4. Robotic arm body; 5. Support plate; 6. First motor; 7. Screw; 8. Fixed rod; 9. Connecting plate; 10. Box body; 11. Second slide rail; 12. U-shaped frame; 13. Second motor; 14. Clamping plate; 15. Plastic pad; 16. U-shaped plate; 17. T-shaped limit rod; 18. Spring; 19. Circular plate; 20. Two-way lead screw; 21. Movable plate; 22. Connecting block; 23. Limiting hole. Detailed Implementation

[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0021] like Figure 1-5 As shown, this utility model provides a technical solution: a clamping assembly and a robotic arm, including a housing 1, a robotic arm body 4 on the top of the housing 1, a box 10 on the robotic arm body 4, and a second sliding groove 11 at the bottom of the box 10. Because of the second sliding groove 11, when the connecting block 22 and the U-shaped frame 12 move, the second sliding groove 11 can limit and guide the connecting block 22, thereby improving the stability of the movement of the connecting block 22 and the U-shaped frame 12. The connecting block 22 is slidably connected in the second sliding groove 11. A plastic pad 15 is fixedly connected to one side of the clamping plate 14. Because the plastic pad 15 is soft, it can protect the item when it is clamped, reducing the damage to the item. A second motor 13 is fixedly connected to one side of the box 10, and a bidirectional lead screw 20 is fixedly connected to the output end of the second motor 13.

[0022] The bidirectional lead screw 20 is rotatably connected to the housing 10 via bearings. Two movable plates 21 are threaded onto the bidirectional lead screw 20. A connecting block 22 is fixedly connected to the bottom of the movable plate 21. A U-shaped frame 12 is fixedly connected to the bottom of the connecting block 22. Two first sliding grooves 2 are opened on the housing 1. A movable plate 3 is fixedly connected to the bottom of the robotic arm body 4. A first motor 6 is fixedly connected to one side of the housing 1.

[0023] A U-shaped plate 16 is fixedly connected to one side of the U-shaped frame 12. A T-shaped limiting rod 17 is slidably connected to the U-shaped plate 16. Because of the T-shaped limiting rod 17, when the spring 18 is compressed, the T-shaped limiting rod 17 can limit the spring 18, preventing the spring 18 from bending excessively and deforming, thus ensuring the normal use of the spring 18. A circular plate 19 is fixedly connected to the T-shaped limiting rod 17. Because of the circular plate 19, when the T-shaped limiting rod 17 is pulled and drives the circular plate 19 to move, the circular plate 19 can compress the spring 18, thus facilitating the smooth operation of subsequent operations. The spring 18 is sleeved on the T-shaped limiting rod 17. A clamping plate 14 is provided inside the U-shaped frame 12. A support plate 5 is provided at the bottom of the first motor 6. The support plate 5 is fixed to the housing 1. A screw 7 is fixedly connected to the output end of the first motor 6. The screw 7 is rotatably connected to the housing 1 through a bearing.

[0024] A limiting hole 23 is provided on the clamping plate 14. One end of the T-shaped limiting rod 17 extends into the limiting hole 23. A fixing rod 8 is fixedly connected inside the box 1. Four connecting plates 9 are fixedly connected to the bottom of the moving plate 3. The connecting plates 9 are slidably connected inside the first slide groove 2. Two of the connecting plates 9 are slidably connected to the fixing rod 8, and the other two connecting plates 9 are threadedly connected to the screw rod 7.

[0025] The working principle of this utility model is as follows:

[0026] In use, the second motor 13 is started to drive the bidirectional lead screw 20 to rotate, causing the two movable plates 21, connecting block 22, U-shaped frame 12, and clamping plate 14 to move closer together, thereby clamping the item. When it is necessary to disassemble the clamping plate 14, pull the T-shaped limiting rod 17 to disengage it from the limiting hole 23, releasing the clamping plate 14 from its fixed state. At this time, the clamping plate 14 can be disassembled. When it is necessary to install the clamping plate 14, pull the T-shaped limiting rod 17 to move the circular plate 19. The circular plate 19 will compress the spring 18, at which point the clamping plate 14 is placed inside the U-shaped frame 12. The T-shaped limiting rod 17 is released, causing the spring 18 to reset and push the circular plate 19 to move. The circular plate 19 then moves the T-shaped limiting rod 17 and inserts it into the limiting hole 23, thereby fixing the clamping plate 14 and completing the installation of the clamping plate 14. When it is necessary to adjust the position of the robotic arm body 4, the first motor 6 is started to drive the screw 7 to rotate. Since the two connecting plates 9 are threadedly connected to the screw 7, when the screw 7 rotates, the connecting plate 9, the moving plate 3, and the robotic arm body 4 move, thereby completing the position adjustment of the robotic arm body 4.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A clamping assembly and a robotic arm, comprising a housing (1), characterized in that: The top of the box (1) is provided with a mechanical arm body (4), and a box body (10) is provided on the mechanical arm body (4). A second motor (13) is fixedly connected to one side of the box body (10). A bidirectional lead screw (20) is fixedly connected to the output end of the second motor (13). The bidirectional lead screw (20) is rotatably connected to the box body (10) through a bearing. Two movable plates (21) are threadedly connected to the bidirectional lead screw (20). A connecting block (22) is fixedly connected to the bottom of the movable plate (21). A U-shaped frame (12) is fixedly connected to the bottom of the connecting block (22). A U-shaped plate (16) is fixedly connected to one side of the U-shaped frame (12). A T-shaped limiting rod (17) is slidably connected to the U-shaped plate (16). A circular plate (19) is fixedly connected to the T-shaped limiting rod (17). A spring (18) is sleeved on the T-shaped limiting rod (17). A clamping plate (14) is provided inside the U-shaped frame (12). A limiting hole (23) is opened on the clamping plate (14). One end of the T-shaped limiting rod (17) extends into the limiting hole (23).

2. The clamping assembly and robotic arm according to claim 1, characterized in that: The bottom of the box body (10) is provided with a second sliding groove (11), the connecting block (22) is slidably connected in the second sliding groove (11), and a plastic pad (15) is fixedly connected to one side of the clamping plate (14).

3. The clamping assembly and robotic arm according to claim 1, characterized in that: Two first sliding grooves (2) are provided on the box (1), a moving plate (3) is fixedly connected to the bottom of the robotic arm body (4), and a first motor (6) is fixedly connected to one side of the box (1).

4. The clamping assembly and robotic arm according to claim 3, characterized in that: The first motor (6) has a support plate (5) at its bottom, which is fixed to the housing (1). The output end of the first motor (6) is fixedly connected to a screw (7), which is rotatably connected to the housing (1) through a bearing.

5. The clamping assembly and robotic arm according to claim 4, characterized in that: The housing (1) is fixedly connected to a fixing rod (8), and the bottom of the movable plate (3) is fixedly connected to four connecting plates (9).

6. The clamping assembly and robotic arm according to claim 5, characterized in that: The connecting plate (9) is slidably connected inside the first groove (2), wherein two of the connecting plates (9) are slidably connected to the fixed rod (8), and the other two connecting plates (9) are threadedly connected to the screw (7).

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