A large-space multi-degree-of-freedom controllable mechanism welding robot

Abstract

A large-space multi-DOF (degree of freedom) controlled mechanism type robot comprises motors, a rotating base, a base moving mechanism, a vertical moving mechanism, a horizontal moving mechanism and a welding gun. The motors are controllable and include a first controlled motor, a second controlled motor and a third controlled motor. The rotating base is in the cylindrical form. The large-space multi-DOF controlled mechanism type robot adopts the concept of cylindrical coordinates of advanced mathematics and has the advantages that accurate and flexible positioning in a large space is achieved, smooth welding in the operation is realized, structure is simple, excellent performances of controllability, adjustability, flexible output and electromechanical integration are imparted, and motion curve can be flexibly adjusted according to changes in functional requirements or environments.

Description

technical field [0001] The invention relates to the field of welding robot design, in particular to a large-space multi-degree-of-freedom controllable mechanism welding robot. Background technique [0002] Welding robot is an industrial robot engaged in welding including cutting and spraying. This robot can replace manual work in harsh environments. With the continuous development of modern industry and the improvement of mechanization and automation level of production process, welding robots can be widely used in the fields of mechanical processing and mechanical material forming. [0003] Chinese patent 201310692637.7 discloses a controllable multi-degree-of-freedom welding robot. The mechanism realizes the positioning of the motion output end through the rotation of the connecting rod, but the length of the connecting rod is limited, and the spatial positioning range is not large. A more complex and intense signal is required to achieve smoothness. Chinese patent 20121...

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Problems solved by technology

[0003] Chinese patent 201310692637.7 discloses a controllable multi-degree-of-freedom welding robot. The mechanism realizes the positioning of the motion output end through the rotation of the connecting rod, but the length of the connecting rod is limited, and the spatial positioning range is not large. A more complex and intense signal is required to achieve a stable

Chinese patent 201210084813.4 discloses a four-degree-of-freedom parallel welding robot with three-dimensional translation and one-dimensional rotation. Although this mechanism can realize positioning in a large space, the welding robot needs to occupy a large space

At present, there is no innovative design and invention of a welding robot with simple structure, small space occupation, low manufacturing cost, easy to achieve precise and flexible positioning in a large space, and stable welding during work.

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