Mechanical joint and driving device thereof

Abstract

The invention belongs to the technical field of mechanical joints, and particularly relates to a mechanical joint and a driving device thereof. When the device is used, a first hinged base and a second hinged base are hinged to two joint bodies of the mechanical joint correspondingly. When the device is expanded, a motor rotates clockwise, a motor base is in rotation stopping fit with the first hinged base, a rotating arm pulls a driving connecting rod to do inward-contracting circumferential and centripetal mixed motion, the driving connecting rod pulls middle hinged bases to contract in the radial direction of the rotating arm, the included angles between first transmission connecting rods and second transmission connecting rods hinged to the middle hinged bases are gradually increased, the motor base can be guided away from the first hinged base in the telescopic direction, meanwhile, the first hinged base and the second hinged base get away from each other, and therefore the device is expanded in the axial direction. When the device is contracted, the device does motion opposite to that during expansion. A motor direct driving manner is avoided, the use cost is reduced, and due to mechanical transmission between the hinged connecting rods, the driving device is high in response speed and more accurate and errorless in action.

Description

technical field [0001] The invention belongs to the technical field of mechanical joints, and in particular relates to a mechanical shutdown and a driving device thereof. Background technique [0002] Most of the current mechanical joints are directly driven by servo motors, which have high torque requirements for servo motors, and the cost of such servo motors is often high; in addition to the direct drive of servo motors, there are also some mechanical joints that use Pneumatic or hydraulic drive, and this requires the use of elastic media such as compressed air or hydraulic oil. When using such elastic media that can buffer to drive mechanical joints, it will cause slow response speed of mechanical joints, untimely movement, and inaccurate positioning. The problem. Contents of the invention [0003] The purpose of the present invention is to provide a telescopic drive device for mechanical joints to solve the technical problems of high cost of servo motor direct drive,...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a telescopic drive device for mechanical joints to solve the technical problems of high cost of servo motor direct drive, slow response speed and inaccurate positioning of pneumatic or hydraulic drive in the prior art ; The present invention also provides a mechanical joint using the driving device

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