Mechanical arm auxiliary device
By installing components such as adapters, pressure pumps, teeth, and limit bridges on the robotic arm, displacement and early warning protection of the robotic arm are achieved, solving the problem of damage to the robotic arm due to obstacle collisions and improving the efficiency and quality of the robotic arm.
Patent Information
- Application Number
- CN202423060368.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Existing robotic arm assist devices are prone to component breakage due to excessive resistance when encountering obstacles, and cannot effectively avoid impact damage.
A robotic arm auxiliary device was designed. By setting components such as adapters, pressure pumps, teeth, arc racks, limit bridges and sensors on the robotic arm, the device utilizes tooth meshing and ball bearing engagement to achieve displacement and early warning protection of the robotic arm, avoiding direct impact damage.
It effectively prevents the robotic arm from being damaged by hitting obstacles, improves the efficiency and quality of the robotic arm, and avoids damage to parts and falling items.
Smart Images

Figure CN223507190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of robotic arm assistance technology, specifically a robotic arm assistance device. Background Technology
[0002] A robotic arm typically refers to a programmable mechanical arm with functions similar to a human arm. This arm can be a complete mechanical device or a part of a more complex robot. Such a robotic arm can perform rotational or translational movements.
[0003] Currently, existing robotic arm auxiliary devices have the following shortcomings in use: Firstly, in the processing and production process, it is usually necessary to perform operations of feeding and unloading workpieces. However, when the robotic arm encounters an obstacle, the fixed-programmed robotic arm will collide with the obstacle. When the obstacle is large and the resistance to the robotic arm is too great, it will cause the robotic arm components to break. Therefore, those skilled in the art have provided a robotic arm auxiliary device to solve the problems mentioned in the background art. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a robotic arm auxiliary device. To achieve the above objectives, this utility model employs the following technical solution:
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: a robotic arm auxiliary device, including a main robotic arm, an adapter is rotatably installed on one side of the upper part of the main robotic arm, an auxiliary robotic arm is fixedly connected to one end of the adapter, a reducer sleeve is rotatably connected to one end of the auxiliary robotic arm, a pressure pump is rotatably installed on the outer surface of the reducer sleeve, one end of the main robotic arm is rotatably installed with the adapter, a plurality of teeth are arranged in a ring at one end of the pressure pump, a plurality of arc-shaped racks that mesh with the teeth are arranged in an arc on the outer surface of the auxiliary robotic arm, a clamping main robotic arm is installed at one end of the reducer sleeve, a limiting plate is fixedly installed on the outer surface of the auxiliary robotic arm, two inclined plates are symmetrically fixedly connected to one end of the limiting plate, an opening is opened on the inner side of the inclined plate, and a slider is slidably installed on the inner side of the opening.
[0006] Preferably, a movable rod is inserted through one end of the inclined plate, a baffle is fixedly fitted on the outer surface of the movable rod, a second spring corresponding to the baffle is movably fitted on the outer surface of the movable rod, two support frames are fixedly connected to one end of the inclined plate, a limiting groove is opened at one end of each of the two support frames, a moving block is slidably arranged inside the limiting groove, and a connecting rod is connected between the two moving blocks, the connecting rod and the movable rod are interspersed.
[0007] Preferably, the ends of the two movable blocks that are far apart are each connected to a connecting rod, and one end of the two connecting rods is connected to a limit bridge.
[0008] Preferably, sensors are provided on the upper surfaces of both inclined plates.
[0009] Preferably, the inner side of the limiting bridge is provided with a plurality of ball bearings, which are used in conjunction with a pressure pump.
[0010] The beneficial effects of this utility model are:
[0011] This utility model describes a robotic arm auxiliary device. During use, the adapter is swung to a predetermined position for control. After a short period of contact, the main clamping arm may come into contact with the auxiliary arm, causing rotational displacement. If the contact is not strong enough, it can deform the main clamping arm, which in turn can damage the reducer sleeve. The device works by rotating the main clamping arm, causing the reducer sleeve to rotate on the auxiliary arm. This rotation of the reducer sleeve drives the pressure pump. During the pump's movement, the meshing of the gear teeth and the arc-shaped rack causes the pump to rotate on the reducer sleeve. When the reducer sleeve rotates to a certain angle, the pressure pump and the limiting bridge... When there is contact, the pressure pump rotates in conjunction with the ball bearings inside the limit bridge, pushing the limit bridge to move and then driving the connecting rod. The moving rod then drives the moving block to slide within the limiting groove. The sliding block then drives the connecting rod to move, which in turn drives the moving rod. The moving rod then drives the baffle to move and compresses the second spring, thus preventing the main arm from breaking directly due to impact with the object. When the moving rod reaches a certain position, it triggers a warning from the sensor and stops. This provides auxiliary protection for the robotic arm during processing, preventing damage from impacts, effectively preventing items from falling, and ensuring the efficiency and quality of the overall robotic arm auxiliary device. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0014] Figure 2 For the present utility model Figure 1 Another structural diagram from a different perspective;
[0015] Figure 3 For the present utility model Figure 2 Enlarged structural diagram of the middle component;
[0016] Figure 4 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle;
[0017] Figure 5 For the present utility model Figure 2 Schematic diagram of the structure at point B.
[0018] In the diagram: 1. Main mechanical arm; 2. Second spring; 3. Sensor; 4. Baffle; 5. Adapter; 6. Limiting plate; 7. Tooth; 8. Arc rack; 9. Auxiliary mechanical arm; 10. Pressure pump; 11. Clamping main arm; 12. Moving rod; 14. Inclined plate; 15. Through port; 16. Slider; 21. Reducer sleeve; 22. Limiting bridge; 23. Connecting rod; 24. Moving block; 25. Support frame; 26. Limiting groove; 27. Connecting rod. Detailed Implementation
[0019] This utility model provides a robotic arm auxiliary device. To better understand the above technical solution, the following will describe the above technical solution in detail with reference to the accompanying drawings and specific implementation methods.
[0020] like Figure 1-5 As shown, this utility model discloses a robotic arm auxiliary device, comprising a main robotic arm 1, an adapter 5 rotatably mounted on one side of the upper part of the main robotic arm 1, a robotic auxiliary arm 9 fixedly connected to one end of the adapter 5, a reducer sleeve 21 rotatably connected to one end of the robotic auxiliary arm 9, a pressure pump 10 rotatably mounted on the outer surface of the reducer sleeve 21, one end of the main robotic arm 1 rotatably mounted to the adapter 5, a plurality of teeth 7 arranged in a ring at one end of the pressure pump 10, a plurality of arc-shaped racks 8 arranged in an arc shape on the outer surface of the robotic auxiliary arm 9 that mesh with the teeth 7, a clamping main robotic arm 11 mounted on one end of the reducer sleeve 21, a limiting plate 6 fixedly mounted on the outer surface of the robotic auxiliary arm 9, two inclined plates 14 symmetrically fixedly connected to one end of the limiting plate 6, an opening 15 opened on the inner side of the inclined plate 14, a slider 16 slidably mounted on the inner side of the opening 15, and a moving part inserted through one end of the inclined plate 14. The rod 12 has a baffle 4 fixedly mounted on its outer surface and a second spring 2 corresponding to the baffle 4 movably mounted on its outer surface. Several balls are provided on the inner side of the limiting bridge 22. The balls work in conjunction with the pressure pump 10 to swing the adapter 5 to a predetermined position for operation. After a short period of contact, the clamping main arm 11 may come into contact with the mechanical auxiliary arm 9, causing it to rotate and shift. If the contact is not good, it may also cause the clamping main arm 11 to deform. After the clamping main arm 11 is deformed, it will pull the reducer sleeve 21 and damage it. When the clamping main arm 11 rotates, it drives the reducer sleeve 21 to rotate on the mechanical auxiliary arm 9. When the reducer sleeve 21 rotates, it drives the pressure pump 10 to move. During the movement of the pressure pump 10, under the meshing of the teeth 7 and the arc rack 8, the teeth 7 drive the pressure pump 10 to rotate on the reducer sleeve 21.
[0021] Specifically, two support frames 25 are fixedly connected to one end of the inclined plate 14. Each support frame 25 has a limiting groove 26 at one end. A moving block 24 is slidably arranged inside the limiting groove 26. A connecting rod 27 is connected between the two moving blocks 24, and the connecting rod 27 is interlocked with the moving rod 12. A connecting rod 23 is connected to the opposite end of each of the two moving blocks 24. A limit bridge 22 is connected to one end of each of the two connecting rods 23. Sensors 3 are installed on the upper surfaces of both inclined plates 14. When the reducer sleeve 21 rotates to a certain angle, the pressure pump 10 and the limit bridge 22... When the bridge 22 comes into contact, the pressure pump 10 rotates and engages with the ball bearings inside the limiting bridge 22, pushing the limiting bridge 22 to move and then driving the connecting rod 23 to move. After the connecting rod 23 moves, it drives the moving block 24 to slide in the limiting groove 26. After the moving block 24 slides, it drives the connecting rod 27 to move. The moving rod 27 then drives the moving rod 12 to move. The moving rod 12 drives the baffle 4 to move and squeezes the second spring 2, thereby preventing the main arm 11 from breaking directly due to impact with the object. When the moving rod 12 moves to a certain position, it triggers the warning stop of the sensor 3.
[0022] This utility model embodiment also provides a robotic arm auxiliary device, the specific working principle of which includes the following steps:
[0023] During the use of the robotic arm auxiliary device, the adapter 5 is swung to a predetermined position for operation. After a short period of contact, it may contact the main clamping arm 11, causing it to rotate and shift on the auxiliary robotic arm 9. If the contact is not good, it may also cause the main clamping arm 11 to deform. After the main clamping arm 11 is deformed, it will pull on the reducer sleeve 21 and damage it. When the main clamping arm 11 rotates, it drives the reducer sleeve 21 to rotate on the auxiliary robotic arm 9. When the reducer sleeve 21 rotates, it drives the pressure pump 10 to move. During the movement of the pressure pump 10, under the meshing of the teeth 7 and the arc-shaped rack 8, the teeth 7 drive the pressure pump 10 on the reducer sleeve 21. When the reducer sleeve 21 rotates to a certain angle, the pressure pump 10 and the limit bridge 22 come into contact. The pressure pump 10 and the ball bearings on the inner side of the limit bridge 22 rotate and cooperate, pushing the limit bridge 22 to move and then driving the connecting rod 23 to move. After the connecting rod 23 moves, it drives the moving block 24 to slide in the limiting groove 26. After the moving block 24 slides, it drives the connecting rod 27 to move. After the connecting rod 27 moves, it drives the moving rod 12 to move. After the moving rod 12 moves, it drives the baffle 4 to move and squeezes the second spring 2, thereby preventing the main arm 11 from breaking directly due to impact with the object. When the moving rod 12 moves to a certain position, it triggers the warning stop of the sensor 3.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A robotic arm auxiliary device, characterized in that: The system includes a main mechanical arm (1), with an adapter (5) rotatably mounted on one side of the upper part of the main mechanical arm (1). One end of the adapter (5) is fixedly connected to a mechanical auxiliary arm (9), and one end of the mechanical auxiliary arm (9) is rotatably connected to a reducer sleeve (21). A pressure pump (10) is rotatably mounted on the outer surface of the reducer sleeve (21). One end of the main mechanical arm (1) is rotatably mounted to the adapter (5), and one end of the pressure pump (10) is provided with a plurality of teeth (7) arranged in a ring. The outer surface of the mechanical auxiliary arm (9) is provided with a plurality of arc-shaped racks (8) that mesh with the teeth (7). One end of the reducer sleeve (21) is equipped with a clamping main arm (11). The outer surface of the mechanical auxiliary arm (9) is fixedly fitted with a limiting plate (6). One end of the limiting plate (6) is symmetrically fixedly connected with two inclined plates (14). The inner side of the inclined plate (14) is provided with a through-hole (15). The inner side of the through-hole (15) is slidably installed with a slider (16).
2. The robotic arm auxiliary device according to claim 1, characterized in that: A movable rod (12) is inserted through one end of the inclined plate (14). A baffle (4) is fixedly fitted on the outer surface of the movable rod (12). A second spring (2) corresponding to the baffle (4) is movably fitted on the outer surface of the movable rod (12). Two support frames (25) are fixedly connected to one end of the inclined plate (14). A limiting groove (26) is opened at one end of each of the two support frames (25). A moving block (24) is slidably arranged inside the limiting groove (26). A connecting rod (27) is connected between the two moving blocks (24). The connecting rod (27) is inserted through the movable rod (12).
3. The robotic arm auxiliary device according to claim 2, characterized in that: The two movable blocks (24) are connected to a connecting rod (23) at opposite ends, and one end of the two connecting rods (23) is connected to a limit bridge (22).
4. The robotic arm auxiliary device according to claim 1, characterized in that: Sensors (3) are provided on the upper surfaces of both inclined plates (14).
5. The robotic arm auxiliary device according to claim 3, characterized in that: The inner side of the limiting bridge (22) is provided with several balls, which are used in conjunction with the pressure pump (10).