Gas magnet mixed ball hinge joint and assembly method in use

Abstract

The invention discloses a gas magnet mixed ball hinge joint and an assembly method in use. For a conventional air flotation ball hinge joint, multi-pose work is hard to realize. The provided gas magnet mixed ball hinge joint comprises a ball head, a ball socket, a support rod, a base, a main magnet exciting coil, auxiliary magnet exciting coils, and displacement sensors. When zero adjustment of the ball head is carried out, a displacement detection system determine the eccentric amount of the ball head based on the gap between the ball head and the ball socket, the gap is detected by four displacement sensors; and based on the eccentric amount of the ball head, the current in six auxiliary magnet exciting coils is adjusted so as to overlap the center of the ball head and the center of theball socket. Through the balance between pre-tensioning of magnetic force and gas film support force, the ball hinge joint can move in different positions, the application range of the air flotation ball hinge is enlarged, the magnetic force is pre-tensioned by using an electromagnet, and the control is easy.

Description

technical field [0001] The invention belongs to the field of ball joints, and in particular relates to an air-magnetic hybrid ball joint and an assembly method thereof. The magnetic levitation technology is applied to the air-floating ball joint, thereby expanding the application occasions of the air-floating ball joint. Background technique [0002] The ball joint is a three-degree-of-freedom mechanical joint with compact structure and flexible movement. It is gradually being widely used in many fields such as robots, parallel mechanisms, automobiles, and motors. [0003] Conventional air-floating ball joints mainly consider the balance between the support force of the air film and gravity, which makes the air-floating ball-joints only horizontally placed, and it is difficult to realize the multi-position work of the air-floating ball-joints. At the same time, the joint stiffness and supporting force are both low Not large, poor adaptability when the load changes, and it is...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the air-floating ball hinge mainly depends on gravity preload, and provide an aeromagnetic hybrid ball hinge using magnetic force preload and its assembly method during use. Through magnetic preload and air film The supporting force is balanced, so as to realize the movement of the ball joint joint in different positions in space, and at the same time improve the stiffness, support force and load change adaptability of the joint, and expand the application occasions of the air floating ball joint

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