Parallel robot

Abstract

A parallel robot comprises a frame, a movable platform and two connection branch structures, wherein, the two connection branch structures are connected between the frame and the movable platform and can move in the same plane. Each connection branch structure comprises a parallel motion mechanism and a parallelogram rod group, wherein, the parallel motion mechanism is connected with the frame, and the parallelogram rod group is driven by the parallel motion mechanism. The parallelogram rod group comprises a first connecting rod and a second connecting rod which are arranged in parallel, and the first connecting rod and the second connecting rod are articulated with the parallel motion mechanism and the movable platform. The parallel robot has the advantages of simple structure and lower cost, and is convenient to control.

Description

technical field

[0001] The invention relates to a parallel robot. Background technique

[0002] Most of the existing parallel robots adopt a symmetrical structure with three to six degrees of freedom, and generally use spherical joints, Hookee hinges or moving pairs as kinematic pairs to realize spatial motion with three to six degrees of freedom. The upper platform (mobile platform) and the lower platform (frame) of the above-mentioned parallel robot are usually connected by six branches, each branch is provided with a driver to change the length of each branch, so that the position and posture of the upper platform can be changed. The structure is complex, the manufacturing cost is high, and it is difficult to control. In the automated production lines of light industry, food and electronics industries, operations such as sorting, packaging, and packaging require manipulators with end effectors that can perform high-speed operations in a plane. Then it seems unnecessary,...

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