Mechanical arm angle adjusting device

Abstract

The utility model discloses a mechanical arm angle adjusting device, which relates to the technical field of mechanical arm design, and comprises a base, the top end of the base is connected with a screw rod, the outer wall of the screw rod is connected with a mechanical arm adjusting assembly, the mechanical arm adjusting assembly comprises a sliding plate mounted on the outer wall of the screw rod, and one end of the sliding plate is connected with a mounting plate. A first motor and a second motor are mounted on the outer wall of the mounting plate, one end of the first motor is connected with a first connecting rod, one end of the first connecting rod away from the first motor is connected with a second connecting rod, one end of the second motor close to the first motor is connected with a third connecting rod, and one end of the third connecting rod away from the second motor is connected with a fourth connecting rod; according to the mechanical arm adjusting assembly, the problem that the working face of the mechanical arm in the cylindrical coordinate system is limited in the horizontal direction is solved, and efficient work of the mechanical arm in the cylindrical coordinate system is achieved.

Description

Technical Field

[0001] This utility model relates to the field of robotic arm design technology, specifically to a robotic arm angle adjustment device. Background Technology

[0002] A robotic arm is a complex system characterized by high precision, multiple inputs and outputs, high nonlinearity, and strong coupling. Due to its unique operational flexibility, it has been widely used in industrial assembly, safety and explosion-proof fields, and more. Robotic arms include, but are not limited to, cylindrical coordinate system robotic arms. A cylindrical coordinate system robotic arm is a type of robotic arm designed based on a cylindrical coordinate system and is commonly used in industrial production lines for tasks such as material handling and assembly. Its design is based on the cylindrical coordinate system in mathematics, achieving precise positioning and manipulation of workpieces through rotation, extension, and other movements.

[0003] In existing technologies, traditional cylindrical coordinate system robotic arms are usually limited in their workspace due to their structural design. Their horizontal movement is restricted by the length of the robotic arm and the mechanical structure, and cannot be as flexible as linear movement. This may result in the cylindrical coordinate system robotic arm being unable to reach the required position or angle in certain specific tasks, which may affect its application range and efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a robotic arm angle adjustment device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a robotic arm angle adjustment device, including a base, a lead screw connected to the top of the base, a robotic arm adjustment assembly connected to the outer wall of the lead screw, the robotic arm adjustment assembly including a sliding plate installed on the outer wall of the lead screw, a mounting plate connected to one end of the sliding plate, a first motor and a second motor installed on the outer wall of the mounting plate, a first connecting rod connected to one end of the first motor, a second connecting rod connected to the end of the first connecting rod away from the first motor, a third connecting rod connected to the end of the second motor close to the first motor, and a fourth connecting rod connected to the end of the third connecting rod away from the second motor.

[0006] Furthermore, two shock-absorbing components are installed inside the base. The shock-absorbing components include damping rods connected to the inner bottom wall of the base. The top of the damping rods is connected to two fifth links. One end of each of the two fifth links is connected to a sixth link. The top of the sixth link is connected to a fixing block. Springs are installed on the opposite side of the two sixth links.

[0007] Furthermore, the second and fourth links are rotatably connected to a rotating block at their adjacent ends. A clamp is installed at one end of the rotating block, and two jaws are installed at one end of the clamp. Anti-slip textures are provided on the inner walls of the opposite sides of the two jaws.

[0008] Furthermore, a top plate is installed at the top of the lead screw, and a third motor is installed at the middle of the top of the top plate. The third motor is rotatably connected to the lead screw.

[0009] Furthermore, the inner wall of the connection between the sliding plate and the lead screw is provided with threads that match the texture of the lead screw surface. The sliding plate and the lead screw are rotatably connected, the mounting plate and the sliding plate are fixedly connected, and the first motor, the second motor and the mounting plate are fixedly connected.

[0010] Furthermore, the first motor is rotatably connected to the first link, the second motor is rotatably connected to the third link, the first link is rotatably connected to the second link, and the third link is rotatably connected to the fourth link.

[0011] Furthermore, the top of the damping rod is rotatably connected to the two fifth links, the fifth link is rotatably connected to the sixth link, the top of the sixth link is rotatably connected to the fixed block, and the fixed block is fixedly connected to the inner top wall of the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are: by using the robotic arm adjustment component, the robotic arm can achieve more diverse motion trajectories through the coordinated movement of the linkage. The robotic arm can flexibly adjust its position and posture to adapt to different work requirements, enabling the robotic arm to perform more precise motion control in the horizontal direction. Furthermore, the robotic arm adjustment component can expand the working space of the robotic arm, allowing it to cover a larger area and improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a robotic arm angle adjustment device;

[0014] Figure 2 This is a schematic diagram of the structure of a robotic arm adjustment component in a robotic arm angle adjustment device;

[0015] Figure 3 This is a schematic diagram of the internal structure of the base in a robotic arm angle adjustment device.

[0016] Figure 4 This is a schematic diagram of the shock absorption component in a robotic arm angle adjustment device.

[0017] In the picture:

[0018] 1. Base; 2. Lead screw;

[0019] 3. Robotic arm adjustment assembly; 301. Sliding plate; 302. Mounting plate; 303. First motor; 304. Second motor; 305. First link; 306. Second link; 307. Third link; 308. Fourth link;

[0020] 4. Rotating block; 5. Fixture;

[0021] 6. Top plate; 7. Third motor;

[0022] 8. Shock absorber assembly; 801. Damping rod; 802. Fifth link; 803. Sixth link; 804. Fixing block; 805. Spring. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 - Figure 4 This utility model provides a technical solution for a robotic arm angle adjustment device:

[0025] In the embodiments of this utility model, see Figure 1 , Figure 2 , Figure 3 , Figure 4 The system includes a base 1, a lead screw 2 connected to the top of the base 1, and a robotic arm adjustment assembly 3 connected to the outer wall of the lead screw 2. The robotic arm adjustment assembly 3 includes a sliding plate 301 installed on the outer wall of the lead screw 2. One end of the sliding plate 301 is connected to a mounting plate 302. A first motor 303 and a second motor 304 are installed on the outer wall of the mounting plate 302. One end of the first motor 303 is connected to a first connecting rod 305. The end of the first connecting rod 305 away from the first motor 303 is connected to a second connecting rod 306. The end of the second motor 304 near the first motor 303 is connected to a third connecting rod 307. The end of the third connecting rod 307 away from the second motor 304 is connected to a fourth connecting rod 308.

[0026] It should be noted that the basic vertical movement of the fixture 5 can be achieved by the sliding plate 301. Furthermore, by controlling the first link 305, the second link 306, the third link 307, and the fourth link 308 by the first motor 303 and the second motor 304 respectively, its range of motion on the horizontal plane can be significantly increased, enabling the cylindrical coordinate system robotic arm to cover a larger working area and thus adapt to more types of task needs.

[0027] See Figure 3 , Figure 4The base 1 has two shock-absorbing components 8 installed inside. The shock-absorbing components 8 include a damping rod 801 connected to the inner bottom wall of the base 1. The top of the damping rod 801 is connected to two fifth links 802. One end of each of the two fifth links 802 is connected to a sixth link 803. The top of the sixth link 803 is connected to a fixing block 804. A spring 805 is installed on the opposite side of the two sixth links 803.

[0028] It should be noted that the shock absorption component 8 can effectively absorb and isolate these external vibrations, thereby improving the working stability of the robotic arm adjustment component 3. Furthermore, the shock absorption component 8 can reduce the wear of rigid components caused by vibration and extend the service life of the components.

[0029] See Figure 1 The second link 306 and the fourth link 308 are rotatably connected to a rotating block 4 at their close ends. A clamp 5 is installed at one end of the rotating block 4. Two grippers are installed at one end of the clamp 5. Anti-slip textures are provided on the inner wall of the opposite side of the two grippers.

[0030] It should be noted that the anti-slip texture can significantly increase the friction between the clamp 5 and the object being gripped, thereby reducing the risk of the object slipping during handling or processing and improving safety and stability during operation.

[0031] See Figure 1 A top plate 6 is installed at the top of the lead screw 2, and a third motor 7 is installed at the middle of the top of the top of the top plate 6. The third motor 7 is rotatably connected to the lead screw 2.

[0032] It should be noted that the movement of the sliding plate 301 in the vertical direction is controlled by the rotational connection between the third motor 7 and the lead screw 2, and the lead screw 2 can provide extremely high positioning accuracy and repeatability.

[0033] Working principle: The third motor 7 is rotatably connected to the lead screw 2. When the third motor 7 starts and drives the lead screw 2 to rotate, the sliding plate 301, which is threadedly connected to the lead screw 2, begins to rotate synchronously in the vertical direction. At the same time, a mounting plate 302 is fixedly connected to one end of the sliding plate 301. A first motor 303 and a second motor 304 are mounted on one side of the mounting plate 302. The rotation of the first motor 303 causes the first connecting rod 305, which is rotatably connected to the first motor 303, to move under the drive of the first motor 303, thereby driving the second connecting rod 306, which is rotatably connected to the first connecting rod 305. The angle of the clamp 5 can be changed, and after the rotation of the second motor 304 drives the third link 307, the fourth link 308, which is rotatably connected to the third link 307, will also rotate, causing the clamp 5 to be further adjusted. Furthermore, the rotating block 4 can be rotated at one end of the fourth link 308 and the second link 306 according to the operator's operation. This allows the clamp 5 to have more operating space under horizontal control, reducing the disadvantages of the cylindrical coordinate system robot arm under horizontal control, improving the adaptability of the cylindrical coordinate system robot arm when working, increasing its working capacity, and improving its work efficiency.

Claims

1. A mechanical arm angle adjustment device comprising a base (1), characterized in that: The top end of the base (1) is connected with a lead screw (2), the outer wall of the lead screw (2) is connected with a mechanical arm adjusting assembly (3), the mechanical arm adjusting assembly (3) comprises a sliding plate (301) installed on the outer wall of the lead screw (2), one end of the sliding plate (301) is connected with a mounting plate (302), the outer wall of the mounting plate (302) is installed with a first motor (303) and a second motor (304), one end of the first motor (303) is connected with a first connecting rod (305), the end of the first connecting rod (305) away from the first motor (303) is connected with a second connecting rod (306), one end of the second motor (304) close to the first motor (303) is connected with a third connecting rod (307), one end of the third connecting rod (307) away from the second motor (304) is connected with a fourth connecting rod (308).

2. A mechanical arm angle adjustment device according to claim 1, characterized in that: Two damping assemblies (8) are installed in the base (1), the damping assembly (8) comprises a damping rod (801) connected with the inner bottom wall of the base (1), the top end of the damping rod (801) is connected with two fifth connecting rods (802), one end of the two fifth connecting rods (802) is connected with a sixth connecting rod (803) respectively, the top end of the sixth connecting rod (803) is connected with a fixed block (804), the opposite side of the two sixth connecting rods (803) is installed with a spring (805).

3. A mechanical arm angle adjustment device as claimed in claim 2, characterized in that: The end close to each other of the second connecting rod (306) and the fourth connecting rod (308) is rotatably connected with a rotating block (4), one end of the rotating block (4) is installed with a clamp (5), one end of the clamp (5) is installed with two clamping jaws, the inner wall of the opposite side of the two clamping jaws is provided with anti-skid lines.

4. A mechanical arm angle adjustment device as claimed in claim 3, characterized in that: The top end of the lead screw (2) is installed with a top plate (6), the top end of the top plate (6) is installed with a third motor (7) in the middle, the third motor (7) is rotatably connected with the lead screw (2).

5. A mechanical arm angle adjustment device as claimed in claim 4, characterized in that: The inner wall of the connection between the sliding plate (301) and the lead screw (2) is provided with threads, the threads are matched with the threads on the surface of the lead screw (2), the sliding plate (301) is rotatably connected with the lead screw (2), the mounting plate (302) is fixedly connected with the sliding plate (301), and the first motor (303) and the second motor (304) are fixedly connected with the mounting plate (302).

6. A mechanical arm angle adjustment device as claimed in claim 5, characterized in that: The first motor (303) is rotatably connected with the first connecting rod (305), the second motor (304) is rotatably connected with the third connecting rod (307), the first connecting rod (305) is rotatably connected with the second connecting rod (306), and the third connecting rod (307) is rotatably connected with the fourth connecting rod (308).

7. A mechanical arm angle adjustment device as claimed in claim 6, characterized in that: The top end of the damping rod (801) is rotatably connected with the two fifth connecting rods (802), the fifth connecting rod (802) is rotatably connected with the sixth connecting rod (803), the top end of the sixth connecting rod (803) is rotatably connected with the fixed block (804), and the fixed block (804) is fixedly connected with the inner top wall of the base (1).

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