Universal robot joints and robot arm

A robot arm and robot technology, applied in the directions of manipulators, claw arms, manufacturing tools, etc., can solve problems such as cable knots and windings, and achieve the effects of easy replacement, easy control and management, and easy use.

Inactive Publication Date: 2016-08-03
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a modular robot universal joint and robot arm, which can realize the synchronous completion of the physical connection and electrical connection

Method used

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  • Universal robot joints and robot arm
  • Universal robot joints and robot arm
  • Universal robot joints and robot arm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Please refer to Figure 1 to Figure 3 In this embodiment, a universal joint 10 for a robot is proposed, which includes a housing 11, a motor and a control unit, and a first interface terminal 13 and a second interface terminal 14 arranged on different sides of the housing 11 ;

[0028] Wherein, the first interface terminal 13 includes a force transmission shaft 17 and a first electrical interface fixed at one end of the force transmission shaft 17, and the second interface terminal 14 includes a force transmission shaft 17 and a second electrical interface. The second electrical interface is fixed inside the other end of the force transmission shaft 17, and both have the same rotation axis or translation track, which can rotate or translate synchronously; the force transmission shaft 17 has two ends connected to the first interface respectively The terminal 13 and the second interface terminal 14 are used to transmit force;

[0029] The first interface terminal 13 is the f...

Embodiment 2

[0043] In this embodiment, the robot universal joint 10 is the same as the first embodiment. The difference is that it can be applied to different robot arms. Please refer to Figure 5 In addition to the robot universal joint 10, the robot arm also includes an expansion component 21, and both the expansion component 21 and the robot universal joint 10 are connected through a first interface terminal 13 and a second interface terminal 14. A plurality of expansion plugs (not shown in the figure) are provided on the surface of the expansion component 21, signal and power lines and a plurality of branch structures (not shown in the figure) are arranged inside, and the signal and power lines are branched by the The structure is divided into multiple paths, and multiple universal joints 10 of the robot are simultaneously connected through the expansion plug, so as to meet the requirements of robot arm control. Specifically, how many robot universal joints 10 need to be used in a robot...

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Abstract

The invention provides universal robot joints and a robot arm. The universal robot joints can be connected in series and/or in parallel through a first interface terminal and a second interface terminal which are arranged on each joint in a unified carrying mode, and a multi-freedom-degree robot system is combined conveniently. Through the design of a force transmission shaft, the same rotating shaft of electrical signals and synchronous rotation, a user only needs to conduct inserting and connecting operation, then physical connection can be completed, and meanwhile, circuit connection is also completed; using is convenient, and meanwhile, the situation that a signal line and a power line are wound caused by rotating of the robot arm is also avoided; each universal joint has an independent bus address and an independent motor servo control system; compared with an external motor control system of a traditional controller, the number of external connection lines of the joints is reduced through the structure of buses, high-frequency noise outside the joints is lowered, problems of corresponding bus nodes are found conveniently and quickly, modularized replacement is conducted, and networked control and management are convenient.

Description

Technical field [0001] The invention relates to the field of robot manufacturing, in particular to a universal joint of a robot and a robot arm. Background technique [0002] Under normal circumstances, the robot arm needs to be composed of multiple joints. The physical and electrical connections between the joints need to be completed independently, which increases the workload. In addition, when the joints are moving, the cables are likely to be entangled or even knotted, which reduces the lifespan and This increases the risk of short circuits and open circuits in the equipment; in addition, under normal circumstances, the number of signal lines and power lines will also double as the number of joints increases, causing the multi-joint robot to move due to the connection Excessive quantities increase the extra load of the system, and also increase the difficulty and cost of production during production; moreover, when the system fails, the complicated arm structure is not condu...

Claims

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Application Information

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IPC IPC(8): B25J17/00B25J18/00
Inventor 张晓林宋洋加藤芳彦
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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