Robot arm and robot

A robot arm and robot technology, applied in manipulators, program-controlled manipulators, claw arms, etc., can solve the problems of increasing the production cost of humanoid robots, increasing robot noise, etc., to achieve optimized anthropomorphic effects, reduce noise, and reduce torque performance the effect of the requirements

Active Publication Date: 2021-09-28
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]However, in order to realize the activities of the various parts of the entire arm and to achieve the effect of simulating the operation of the human arm, the above-mentioned robot needs to be equipped with motors at each joint of the arm. For example, when the robot arm includes three joints, at least three motors need to be provided, which increases the manufacturing cost of the entire humanoid robot and increases the noise generated by the robot during work.

Method used

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  • Robot arm and robot
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] figure 1 A schematic diagram of the overall structure of the robot provided in Embodiment 1 of the present application; figure 2 for figure 1 One of the structural schematic diagrams of the robot arm; image 3 for figure 2 Partial enlarged view of center I; refer to Figure 1 to Figure 3 As shown, the present embodiment provides a robot arm 20 including a flexible skeleton 21 and at least one driving component. Wherein, the first end of the flexible skeleton 21 is connected to the main body of the robot 10 as a flexible arm of the robot. For example, the means of the flexible skeleton 21 can be fixed on the shoulders of the robot body 10 .

[0081] refer to figure 1 As shown, it should be noted that the robot arm 20 of this embodiment is mainly used in humanoid robots, especially children's educational companion robots. Of course, the robot arm 20 of the present application can also be applied to other types of robots if there is no contradiction.

[0082] As ...

Embodiment 2

[0133] Figure 7 Schematic diagram of the structure of the robot arm provided in Embodiment 2 of the present application; Figure 8 for Figure 7 Partial enlarged view of II. refer to Figure 7 with Figure 8 As shown, on the basis of Embodiment 1, the robot arm of this embodiment also includes an elastic member 25, and the elastic member 25 and the transmission member 23 are respectively arranged on both sides of the central axis of the flexible skeleton 21. In other words, the elastic The member 25 and the transmission member 23 are symmetrical with respect to the central axis of the flexible frame 21 , and the elastic member 25 is arranged along the extending direction of the flexible frame 21 . When specifically configured, the elastic member 25 may be a telescopic spring.

[0134] During specific implementation, the quantity of the elastic member 25 can be multiple, and the plurality of elastic members 25 are arranged in one-to-one correspondence with the plurality o...

Embodiment 3

[0146] Figure 10 A schematic diagram of the first structure of the robot arm provided in Embodiment 3 of the present application; Figure 11 for Figure 10 Partial enlarged view of III. refer to Figure 10 with Figure 11 As shown, the difference from Embodiment 1 is that the flexible skeleton 21 of this embodiment includes a flexible segment 211. In other words, the flexible skeleton 21 of this embodiment is composed of a flexible segment 211, and the head end of the flexible segment 211 is connected to On the robot main body 10, it is used as a flexible arm of the robot. For example, the head end of the flexible section 211 can be fixed on the robot main body 10 through the connecting piece 24 .

[0147] In this embodiment, by setting the flexible skeleton 21 as a flexible segment 211, while ensuring that the flexible skeleton 21 can simulate the bending or stretching of the human arm under the driving action of the drive assembly, the structure of the robot arm is sim...

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Abstract

The invention provides a robot arm and a robot. The robot arm comprises a flexible framework and at least one driving assembly. The head end of the flexible framework is used for being connected to a robot body. Each driving assembly comprises a driving part and a transmission part; the driving parts are used for being installed on the robot body and arranged close to the head end of the flexible framework, the first ends of the transmission parts are connected to the driving parts, the second ends of the transmission parts are connected to the tail end of the flexible framework, and the transmission parts deviate from the central axis of the flexible framework; and the driving parts are used for selectively driving the second ends of the transmission parts to move in the direction close to or away from the driving parts so as to drive the flexible framework to be bent or stretched. Compared with a robot arm of a robot in the prior art, movement of the whole arm can be achieved through a plurality of motors, according to the robot arm and the robot, movement of all parts of the whole arm can be achieved through one driving piece, the manufacturing cost of the humanoid robot is effectively reduced, and meanwhile, noise generated in the moving process of the robot arm is reduced.

Description

technical field [0001] The present application relates to the technical field of machinery and equipment, in particular to a robot arm and a robot. Background technique [0002] In recent years, robots have been widely used in various fields, such as hospitals using mobile robots to transport medical equipment, supermarkets and bank service robots, robots in factory manufacturing environments, and families using robots to accompany children to read and play. The robot arm is an important part of the robot's mechanical system, and it is also the main carrier for the robot to realize its service functions. [0003] Take children's educational companion robot as an example. In related technologies, the robot arm is made of hard materials. At the same time, in order to simulate the human arm, the arm includes at least three joints: shoulder, elbow, and wrist, and each joint is equipped with a driver. The motor is used to respectively drive the corresponding parts under the join...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J18/00B25J9/10B25J9/12
CPCB25J18/025B25J9/10B25J9/12
Inventor 江峰贺皓李瑞凡
Owner HUAWEI TECH CO LTD
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