Locking device for electric motor shaft connection of robot joint

Abstract

The invention discloses a locking device used for the robot joint motor shaft connection. The locking device is sleeve-jointed outside a motor shaft and comprises a main body; an inner hole which is matched with the motor shaft is arranged at the inner part of the main body; one section of the inner hole which is about one fourth of the perimeter of the hole wall is a plane section; a cone section and a thread section are arranged at the outer part of the main part in sequence; a gap which parallels with the axial line of the main body, extends to the main body along the radial direction, and runs through the inner hole is arranged on the outer wall of the main body along the length direction of the cone section; the terminal end of the gap is provided with an circular arc which is used for ensuring the positioning accuracy and steering; and at least two gaps are distributed evenly. The locking device has the advantages of convenient installation and disassembly and non-easy loosening in the moor rotation process, can transfer high torque and power, ensures the installation accuracy of the motor shaft and is applicable to the robot joint and transmission part design. The locking device is particularly applicable to the position in which larger load is born while the keyway is not convenient for processing and installation, and the jackscrew fixation is easily loosen. In addition, the locking device is also applicable to the conditions that the radius size of the motor shaft is smaller.

Description

technical field [0001] The invention relates to a connecting piece, in particular to a locking device for connecting a motor shaft of a robot joint, which is suitable for the design of the robot joint. Background technique [0002] Mechanism design of humanoid robot is a key content in robot design, occupies an important position in robot development, and is the basis of other designs of humanoid robot. The mechanism design of humanoid robot has undergone a long-term development and evolution, and the development history of the biped robot of Honda Company basically represents a development process of the mechanism design of biped humanoid robot. From Honda's E0 to ASIMO, the mechanism design of biped humanoid robots has gradually matured. In recent years, some new ideas have emerged in the design of humanoid robot mechanisms. Japan, South Korea, and Germany are all designing new robot structures. Due to the compactness of the mechanism of the humanoid robot, the large tra...

AI Technical Summary

Problems solved by technology

The jackscrew is easy to loosen during the rotation of the motor shaft; especially for the case where the radius of the motor shaft is small, the contact area of ​​the jackscrew is small, the transmission force and torque are not large, and it is easy to install and disassemble in the integrated joint of the humanoid robot. not very convenient

[0006] To sum up, the key connection in the integrated joint of the humanoid robot has the defects of inconvenient installation and disassembly, and the processing and inspection of the motor shaft is not suitable; the jackscrew connection has the defects of inconvenient installation and disassembly, easy loosening, and small transmission torque

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