Locking-force-adjustable rotational joint

Abstract

The invention relates to a locking-force-adjustable rotational joint. The locking-force-adjustable rotational joint comprises a rotary housing and a supporting inner frame, wherein the middle part ofthe supporting inner frame is coaxially fixedly connected with an oil filling pipe; a plurality of oil discharging pipes are connected in annular arrays to the sidewall of the oil filling pipe; N groups of oil discharging holes are arranged in annular arrays in the external sidewall of the supporting inner frame; a sealing block is arranged inside the supporting inner frame; the sealing block is fixed to the position of the corresponding oil discharging hole in the inner wall of the supporting inner frame; an annular spring piece is further arranged outside the supporting inner frame; the spring piece comprises N groups of locking bumps and N groups of deformed bumps, wherein the outer wall of the oil filling pipe is rotationally connected with a pulling plate; the pulling plate is provided with N connecting plates; the end part of each connecting plate is provided with a rotating column; each rotating column is rotationally connected with a rotating hook; each rotating hook is fixedly connected to the inner wall of the spring piece; the supporting inner frame is installed inside the rotary housing; and a plurality of embedding grooves are further formed in annular arrays in the annular inner wall of the rotary housing.

Description

technical field [0001] The invention relates to a rotary joint with adjustable locking strength, which belongs to the field of industrial robot accessories. Background technique [0002] In the advanced manufacturing industry, the frequency of robot joints is high, and the joint locking and damping of robots generally depend on the reluctance of the motor. However, for small-sized manipulators, limited by their volume, the motor specifications are limited, and the reluctance output is also relatively limited. , so the locking force will be relatively low. When moving a heavy object, the load on the motor will also increase. Relying entirely on the reluctance of the motor for locking will increase the heat generation of the motor and shorten its life. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the technical problem of limited reluctance locking force of small and medium-sized industrial mechanical arms in th...

AI Technical Summary

Problems solved by technology

[0002] In the advanced manufacturing industry, the frequency of robot joints is high, and the joint locking and damping of robots generally depend on the reluctance of the motor. However, for small-sized manipulators, limited by their volume, the motor specifications are limited, and the reluctance output is also relatively limited. , so the locking force will be relatively low. When moving a heavy object, the load on the motor will also increase. Relying entirely on the reluctance of the motor for locking will increase the heat generation of the motor and shorten its life.

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