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Three-degree of freedom parallel planar robot

A robot and degree of freedom technology, applied in the field of robotics, can solve problems such as positioning position fluctuations, and achieve the effects of improving positioning accuracy, buffering positioning accuracy, and improving locking accuracy and stability

Active Publication Date: 2019-03-08
NORTH CHINA INST OF AEROSPACE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rotation mechanism of the existing three-degree-of-freedom parallel robot generally adopts the Hooke hinge, and the problem of positioning position fluctuation is prone to occur due to inertia during heavy load or high-speed movement

Method used

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Embodiment Construction

[0017] The standard parts used in the present invention can be purchased from the market, and the special-shaped parts can be customized according to the instructions and the accompanying drawings. The specific connection methods of each part adopt mature bolts, rivets, welding in the prior art , pasting and other conventional means, will not be described in detail here.

[0018] refer to Figure 1-4 A specific embodiment of the present invention includes a fixed platform 1 and a moving platform 2, and the fixed platform 1 and the moving platform 2 are movably connected by three groups of drive mechanisms 3, and the drive mechanism 3 includes two symmetrically arranged cylinders 4, and the cylinder 4 One end of the cylinder is connected to the fixed platform 1 through the first rotating pair 5, and the other end of the cylinder 4 is connected to the moving platform 2 through the second rotating pair 6; The sleeve 7 is connected with the moving platform 2, and the two pin shaf...

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Abstract

The invention discloses a three-degree of freedom parallel planar robot. The three-degree of freedom parallel planar robot comprises a fixed platform and a moving platform, wherein the fixed platformand the moving platform are movably connected by three groups of driving mechanisms, and the driving mechanisms comprise two cylinders arranged symmetrically. One ends of the cylinders are connected with the fixed platform through first rotation pairs, and the other ends of the cylinders are connected with the moving platform through second rotation pairs; the second rotation pairs comprise shaftsleeves and pin shafts which are movably connected in a sleeving mode, the shaft sleeves are connected with the moving platform, and limiting mechanisms are connected between the two pin shafts in thesame driving mechanism through universal joints; and the limiting mechanisms comprise air cylinders, air inlet and exhaust solenoid valves are connected to the side walls of the air cylinders throughfirst air pipes, pistons are arranged at the two ends of the air cylinders, and the pistons are connected with the universal joints. The three-degree of freedom parallel planar robot can improve thedeficiency of the prior art and improve the positioning speed.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to a three-degree-of-freedom parallel plane robot. Background technique [0002] Parallel robot is a closed-loop mechanism driven in parallel. Compared with serial robot, it has high motion precision, no cumulative error, and good dynamic response. Three-freedom parallel robot is a common parallel robot. The rotation mechanism of the existing three-degree-of-freedom parallel robot generally adopts the Hooke hinge, and the problem of positioning position fluctuation is prone to occur due to inertia when heavy load or high-speed movement. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a three-degree-of-freedom parallel planar robot, which can solve the deficiencies of the prior art and improve the positioning speed. [0004] In order to solve the above technical problems, the technical solutions adopted by the present in...

Claims

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Application Information

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IPC IPC(8): B25J9/00B25J9/14
CPCB25J9/003B25J9/14
Inventor 田东兴
Owner NORTH CHINA INST OF AEROSPACE ENG
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