Parallel mechanism with three-dimensional translation and one-dimensional rotation functions

A three-dimensional translation and parallel technology, applied in the field of robotics, can solve the problems of increasing the weight of the moving platform, which is not conducive to improving the efficiency of the mechanism, and achieve the effect of reducing quality and complexity, simple structure, and clear movement mode

Inactive Publication Date: 2013-09-25
CHENXING (TIANJIN) AUTOMATION EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limitation of the above mechanism is that it can only realize the rotation around the axis perpendicular to the moving platform and the amplification mechanism increases the weight of the moving platform, which is not conducive to improving the efficiency of the mechanism

Method used

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  • Parallel mechanism with three-dimensional translation and one-dimensional rotation functions
  • Parallel mechanism with three-dimensional translation and one-dimensional rotation functions

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Embodiment Construction

[0015] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0016] see Figure 1 ~ Figure 2 , a parallel mechanism with three-dimensional translation and one-dimensional rotation, including a fixed frame 1, a moving platform 8, and four branch chains with the same structure symmetrically arranged between the fixed frame 1 and the moving platform 8.

[0017] Each branch chain comprises nearly frame bar 3, two parallel far frame bars 6,7 and the upper connecting shaft 4 and the lower connecting shaft 5 of far frame bar 6,7, and the lower connecting shaft 5, upper connecting shaft on every branch chain The connecting shaft 4 and the two parallel remote frame rods 6, 7 form a parallelogram. One end of the near frame rod 3 is affixed to the rotary drive device installed on the fixed frame, and its other e...

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Abstract

The invention discloses a parallel mechanism with three-dimensional translation and one-dimensional rotation functions. The parallel mechanism comprises a fixing frame, a moving platform and four branched chains with the same structure, wherein the branched chains are symmetrically arranged between the fixing frame and the moving platform. The moving platform comprises an upper platform and a lower platform which are parallel to each other and spatially symmetric, the upper platform and the lower platform are respectively fixedly connected with two adjacent lower connecting shafts and are connected through a reversing mechanism, and the reversing mechanism can transform relative movement of the upper platform and the lower platform into rotation around the rotation center line of the reversing mechanism. The parallel mechanism is simple in structure and clear in movement mode and has higher rigidity in space owing to symmetric structural distribution, an amplifying mechanism is omitted, the weight and complexity of the moving platform are greatly reduced, the parallel mechanism can realize higher movement speed and accelerated speed, and accordingly, mechanism efficiency is improved. The parallel mechanism can be widely applied to the field of sorting, packaging and the like.

Description

technical field [0001] The invention relates to a robot, in particular to a robot having a parallel mechanism with three-dimensional translation and one-dimensional rotation. Background technique [0002] Parallel robots have the advantages of no cumulative error, high precision, compact structure, high rigidity, and large carrying capacity, and have been widely used in military industry, biomedicine, motion simulation and other fields. At present, as an important part of a parallel robot, a four-degree-of-freedom parallel mechanism that can realize three-dimensional translation and one-dimensional rotation includes four active branch chains and a moving platform, and each branch chain includes two parts: a near frame bar and a far frame bar. . One end of the proximal rod has only one degree of freedom of movement or rotation relative to the fixed frame, and the other end is connected to one end of the far rod through a hinge with only two degrees of freedom; the other end ...

Claims

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Application Information

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IPC IPC(8): B25J9/00
CPCB25J9/0051
Inventor 王臣刘松涛宋涛梅江平杨文明田二勋贾凯凯
Owner CHENXING (TIANJIN) AUTOMATION EQUIP CO LTD
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