Connecting piece for robot joint

By designing detachable robot joint connectors and utilizing a combination of Torx bolts and motor-driven spur gears, convenient disassembly and maintenance of robot joints have been achieved, solving the problem of difficult disassembly in existing technologies and improving maintenance efficiency and joint lifespan.

CN223545257UActive Publication Date: 2025-11-14BEIJING HONGCHEN WEIYE TECH CO LTD
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Patent Information

Application Number
CN202423230997.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-14
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing robot joint connectors are not easy to disassemble, which makes inspection and maintenance difficult and reduces their service life.

Method used

A robot joint connector including a connecting rod, a drive mechanism, and a detachable structure was designed. The side plates are detachable by connecting with Torx bolts, exposing the inside of the joint for easy maintenance. The joint is moved by a motor-driven circular gear.

Benefits of technology

It simplifies the maintenance process, reduces maintenance time and labor intensity, extends the service life of joint connectors, and improves the flexibility of robot operation by timely identifying and resolving potential problems through regular inspections.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of robot joints, and discloses a connecting piece for a robot joint, which comprises a connecting rod for supporting a robot arm; the driving mechanism comprises a circular gear arranged on the connecting rod and is used for driving the robot arm to rotate; the detachable structure comprises a side plate arranged on one side of the connecting rod and used for overhauling the interior of the connecting rod after disassembly, the plum blossom bolt is screwed through a plum blossom screwdriver, the side plate can be easily separated from the rotating shaft, then the side plate and the limiting block are removed, the internal structure of the joint is exposed so as to facilitate overhauling, the maintenance process is simplified, and the maintenance efficiency is improved. The maintenance time is shortened, the labor intensity is reduced, the maintenance work is more efficient, meanwhile, through regular overhaul and maintenance, potential problems can be found and solved in time, faults are reduced, and therefore the service life of the joint connecting piece is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of robot joint technology, and in particular to a connector for robot joints. Background Technology

[0002] With the continuous development of robotics technology, robot joint connectors, as an important component of robot motion systems, have performance and reliability that directly affect the overall operational flexibility and ease of maintenance of robots.

[0003] Existing robot joint connectors are not easy to disassemble, which makes it difficult to inspect and maintain the internal parts of the connectors and reduces their service life. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a connector for robot joints.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a connector for a robot joint, comprising:

[0006] Connecting rods are used to support the robot arm;

[0007] The drive mechanism includes a circular gear arranged on a connecting rod for driving the robot arm to rotate;

[0008] The detachable structure includes a side plate located on one side of the connecting rod for access to the interior of the connecting rod after disassembly.

[0009] As a further description of the above technical solution: the driving mechanism also includes:

[0010] Connecting ring one is fixedly arranged at the upper end of the connecting rod and is used to connect the robot's upper arm;

[0011] A through hole is provided on the connecting ring to fix the connecting ring to the robot arm with bolts.

[0012] The motor is fixedly mounted on the connecting rod and is used to drive the spur gear to rotate. The spur gear is fixedly mounted on the output end of the motor.

[0013] A receiving slot, provided on the connecting rod, is used to accommodate the motor;

[0014] A receiving hole is provided on the connecting rod to accommodate the wires connected to the motor.

[0015] As a further description of the above technical solution: the through hole 1 extends through the connecting ring 1, and the receiving groove extends through one side of the connecting rod.

[0016] As a further description of the above technical solution: the receiving hole extends through the connecting rod, and the receiving hole is connected to the receiving groove.

[0017] As a further description of the above technical solution: the detachable structure includes:

[0018] The limiting block is fixedly arranged on one side of the side plate to support the side plate;

[0019] A bracket, mounted on the connecting rod, is used to support the limiting block;

[0020] A limiting groove is provided on one side of the bracket to limit the limiting block, and the limiting block is slidably connected to the limiting groove.

[0021] The rotating shaft is fixedly arranged on the bracket to fix the side plate, and the rotating shaft is rotatably connected to the lower end of the connecting rod.

[0022] Connecting ring two is fixedly arranged on one side of the bracket and is used to connect the robot forearm;

[0023] A second through hole is provided on the second connecting ring to fix the second connecting ring to the robot forearm with bolts.

[0024] The gear ring is fixedly arranged in a groove on one side of the side plate to drive the bracket to rotate, and the gear ring is meshed with the spur gear.

[0025] The Torx bolt is threaded onto the side plate and is used to connect the side plate to the shaft. One end of the Torx bolt is threaded onto the shaft.

[0026] As a further description of the above technical solution: the second through hole penetrates the second connecting ring, and the plum blossom bolt penetrates the side plate.

[0027] As a further description of the above technical solution: the rotating shaft passes through the connecting rod, the limiting groove passes through the bracket, and one end of the rotating shaft is located inside the toothed ring.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, by using a Torx screwdriver to tighten the Torx bolts, the side plate can be easily detached from the pivot, thereby removing the side plate and the limiting block, exposing the internal structure of the joint for easy inspection and maintenance. This simplifies the maintenance process, reduces maintenance time and labor intensity, and makes maintenance work more efficient. At the same time, through regular inspection and maintenance, potential problems can be identified and resolved in a timely manner, reducing the occurrence of failures and thus extending the service life of the joint connector.

[0030] 2. In this utility model, the rotation of the circular gear is driven by the motor, which in turn drives the interlocking movement of the side plate, the rotating shaft, the bracket and the connecting ring II, ultimately realizing the movement control of the robot forearm. This not only enables the robot forearm to move as required, but also meets the operational needs. Attached Figure Description

[0031] Figure 1 An exploded view of a connector for a robot joint proposed in this utility model;

[0032] Figure 2 This is a cross-sectional view of a connector for a robot joint proposed in this utility model;

[0033] Figure 3 This utility model provides a structural schematic diagram of a connector for robot joints. Figure 1 ;

[0034] Figure 4 This utility model provides a structural schematic diagram of a connector for robot joints. Figure 2 .

[0035] Legend:

[0036] 1. Connecting rod; 201. Connecting ring one; 202. Through hole one; 203. Receiving hole; 204. Motor; 205. Circular gear; 206. Receiving groove; 301. Bracket; 302. Connecting ring two; 303. Through hole two; 304. Limiting groove; 305. Rotating shaft; 306. Side plate; 307. Limiting block; 308. Torx bolt; 309. Gear ring. Detailed Implementation

[0037] 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.

[0038] Example 1:

[0039] For reference Figures 1 to 4 The present invention provides a connector for a robot joint, including a connecting rod 1 for supporting a robot arm. The connecting rod 1 includes a drive mechanism, including a circular gear 205 arranged on the connecting rod 1 for driving the robot arm to rotate.

[0040] In a preferred embodiment, the drive mechanism further includes: a connecting ring 201, fixedly disposed on the upper end of the connecting rod 1, for connecting the robot's upper arm; a through hole 202, formed on the connecting ring 201, for fixing the connecting ring 201 to the robot's upper arm by bolts; a motor 204, fixedly disposed on the connecting rod 1, for driving the spur gear 205 to rotate, and the spur gear 205 is fixedly disposed on the output end of the motor 204; a receiving groove 206, formed on the connecting rod 1, for receiving the motor 204; and a receiving hole 203, formed on the connecting rod 1, for receiving the wire connected to the motor 204.

[0041] It should be noted that through-hole 202 can be in several groups;

[0042] In a preferred embodiment, the through hole 202 passes through the connecting ring 201, and the receiving groove 206 passes through one side of the connecting rod 1;

[0043] In a preferred embodiment, the receiving hole 203 passes through the connecting rod 1, and the receiving hole 203 is connected to the receiving groove 206.

[0044] Example 2:

[0045] Based on Embodiment 1, in order to further improve the service life of the robot joint connector, the connecting rod 1 is provided with a detachable structure;

[0046] As a preferred embodiment, the detachable structure includes a side plate 306 arranged on one side of the connecting rod 1 for inspection of the interior of the connecting rod 1 after disassembly.

[0047] In a preferred embodiment, the detachable structure includes: a limiting block 307, fixedly disposed on one side of the side plate 306 for supporting the side plate 306; a bracket 301, disposed on the connecting rod 1 for supporting the limiting block 307; a limiting groove 304, formed on one side of the bracket 301 for limiting the limiting block 307, and the limiting block 307 is slidably connected to the limiting groove 304; a rotating shaft 305, fixedly disposed on the bracket 301 for fixing the side plate 306, and the rotating shaft 305 is rotatably connected to the lower end of the connecting rod 1; and a connecting ring 30. 2. A fixed connection is arranged on one side of the bracket 301 for connecting the robot forearm; a second through hole 303 is provided on the second connecting ring 302 for fixing the second connecting ring 302 to the robot forearm with bolts; a toothed ring 309 is fixedly arranged in the groove on one side of the side plate 306 for driving the bracket 301 to rotate, and the toothed ring 309 is meshed with the spur gear 205; a plum bolt 308 is threadedly connected to the side plate 306 for connecting the side plate 306 to the rotating shaft 305, and one end of the plum bolt 308 is threadedly connected to the rotating shaft 305.

[0048] It should be noted that the through hole 303 can be in several groups, the limiting groove 304 is T-shaped, and the limiting block 307 is T-shaped to fit the limiting groove 304.

[0049] In a preferred embodiment, the second through hole 303 penetrates the second connecting ring 302, and the plum bolt 308 penetrates the side plate 306;

[0050] In a preferred embodiment, the rotating shaft 305 passes through the connecting rod 1, the limiting groove 304 passes through the bracket 301, and one end of the rotating shaft 305 is located inside the toothed ring 309.

[0051] Working principle: In use, firstly, bolts are used to connect connecting ring 201 to the robot's upper arm through several sets of through holes 202. Then, bolts are used to connect connecting ring 302 to the robot's lower arm through several sets of through holes 303. Next, the connecting wires on the robot are passed through the receiving holes 203 and connected to the motor 204 in the receiving groove 206. When the robot's lower arm needs to be moved, the motor 204 can be turned on through the connecting wires. The motor 204 drives the spur gear 205 to rotate, which in turn drives the receiving groove 206 to rotate. The receiving groove 206 then drives the side plate 306 to rotate. The side plate 306 is connected to the rotating shaft 305 through several sets of Torx bolts 308, causing the rotating shaft 305 to rotate on the connecting rod 1. The rotating shaft 305 then moves the bracket 301. 01 drives the second connecting ring 302 to move, thereby causing the connecting ring 302 to move the robot forearm. This allows the robot forearm to move flexibly as needed to meet operational requirements. When it is necessary to inspect the inside of the joint, use a Torx screwdriver to turn several sets of Torx bolts 308. The Torx bolts 308 are connected to the side plate 306 and the rotating shaft 305 by threads and move to one side. When one end of the Torx bolt 308 is disengaged from the rotating shaft 305, the side plate 306 is pulled to one side. The side plate 306 drives the limiting block 307 to slide on the limiting groove 304. After removing the side plate 306, the inside of the joint can be inspected and maintained. This not only facilitates disassembly and maintenance of the joint, but also simplifies the operation and improves the service life of the joint connectors, reducing costs.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connector for a robot joint, characterized in that: include: Connecting rod (1) is used to support the robot arm; The drive mechanism includes a sprocket (205) arranged on the connecting rod (1) for driving the robot arm to rotate; The detachable structure includes a side plate (306) arranged on one side of the connecting rod (1) for inspection of the interior of the connecting rod (1) after disassembly.

2. A connector for a robot joint according to claim 1, characterized in that: The drive mechanism also includes: Connecting ring 1 (201) is fixedly arranged at the upper end of connecting rod (1) and is used to connect the robot's upper arm; A through hole (202) is provided on the connecting ring (201) for fixing the connecting ring (201) to the robot arm by bolts; The motor (204) is fixedly arranged on the connecting rod (1) for driving the spur gear (205) to rotate, and the spur gear (205) is fixedly arranged at the output end of the motor (204); A receiving groove (206) is provided on the connecting rod (1) for accommodating the motor (204); A receiving hole (203) is provided on the connecting rod (1) for receiving the wire connected to the motor (204).

3. A connector for a robot joint according to claim 2, characterized in that: The through hole (202) passes through the connecting ring (201), and the receiving groove (206) passes through one side of the connecting rod (1).

4. A connector for a robot joint according to claim 3, characterized in that: The receiving hole (203) passes through the connecting rod (1), and the receiving hole (203) is connected to the receiving groove (206).

5. A connector for a robot joint according to claim 4, characterized in that: The detachable structure includes: A limiting block (307) is fixedly arranged on one side of the side plate (306) to support the side plate (306); A bracket (301) is arranged on the connecting rod (1) to support the limiting block (307); A limiting groove (304) is provided on one side of the bracket (301) to limit the limiting block (307), and the limiting block (307) is slidably connected to the limiting groove (304); A rotating shaft (305) is fixedly arranged on a bracket (301) for fixing a side plate (306), and the rotating shaft (305) is rotatably connected to the lower end of a connecting rod (1); Connecting ring 2 (302) is fixedly arranged on one side of the bracket (301) and is used to connect the robot forearm; Through hole 2 (303) is provided on connecting ring 2 (302) for fixing connecting ring 2 (302) to robot forearm by bolts; A gear ring (309) is fixedly arranged in a groove on one side of the side plate (306) to drive the bracket (301) to rotate, and the gear ring (309) is meshed with the spur gear (205); A plum bolt (308) is threaded onto the side plate (306) to connect the side plate (306) to the rotating shaft (305), and one end of the plum bolt (308) is threaded onto the rotating shaft (305).

6. A connector for a robot joint according to claim 5, characterized in that: The second through hole (303) passes through the second connecting ring (302), and the plum bolt (308) passes through the side plate (306).

7. A connector for a robot joint according to claim 6, characterized in that: The rotating shaft (305) passes through the connecting rod (1), the limiting groove (304) passes through the bracket (301), and one end of the rotating shaft (305) is located in the toothed ring (309).