Three-freedom-degree parallel mechanism suitable for platform movement

A degree of freedom and platform technology, applied in manipulators, program-controlled manipulators, manufacturing tools, etc., can solve the problems of large space occupation, disadvantageous miniaturization of mechanical equipment, etc., to reduce manufacturing and maintenance costs, good isotropy, and broad The effect of the application foreground

Active Publication Date: 2018-10-19
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the volume of space occupied by such a mechanism is equivalent to the product of the range of motion in the three directions of X, Y, and Z, so the volume of space occupied is relatively large, which is not conducive to the miniaturization of mechanical equipment

Method used

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  • Three-freedom-degree parallel mechanism suitable for platform movement
  • Three-freedom-degree parallel mechanism suitable for platform movement

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Embodiment Construction

[0012] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0013] like figure 1 As shown, a three-degree-of-freedom parallel mechanism suitable for platform movement is characterized in that it consists of a fixed platform 101, a moving platform 102, and three movable branches 103 with identical structures connecting the two platforms. The fixed platform 101 Both the moving platform 102 and the moving platform 102 adopt an equilateral triangle structure to ensure that the three movable branches 103 are symmetrically distributed at the vertices of the equilateral triangle.

[0014] like figure 2 As shown, each movable branch 103 is a parallelogram linkage slider mechanism, which is composed of three linkages, two sliders and two sliders; wherein, the first linkage 201, the first slider 202 , the second connecting...

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Abstract

The invention relates to a three-freedom-degree parallel mechanism suitable for platform movement. The three-freedom-degree parallel mechanism is composed of a fixed platform, a moving platform and three moving branches with identical structures and connected with the two platforms; wherein, each moving branch is a parallelogram connecting rod sliding block mechanism which is composed of three connecting rods, two sliding rods and two sliding blocks, and each moving branch is connected with the fixed platform and the moving platform through two rotating pairs respectively; and each of the fixed platform and the moving platform adopts a regular triangle structure, and the fact that three moving branches are symmetrically distributed at the peak of the regular triangle. The three-freedom-degree parallel mechanism adopts the symmetrical structure, the moving platform can move transversely in the X, Y and Z directions, the three-freedom-degree parallel mechanism is suitable for various mechanical structures needing to realize platform movement, and therefore, a broad application prospect is achieved; and in addition, the mechanism can effectively reduce occupancy for space volume, reduce manufacturing and maintenance costs, and maintain balancing in the movement process.

Description

technical field [0001] The invention relates to the fields of mechanics and robotics, in particular to a three-degree-of-freedom parallel mechanism suitable for platform movement. Background technique [0002] Parallel mechanisms with three degrees of freedom of movement are widely used in the mechanical industry. In the field of machinery industry, it is often necessary to realize the translational movement of the motion platform along the X, Y, and Z directions. To complete the three-degree-of-freedom translational movement, today's mechanisms are generally realized by a screw slider mechanism arranged in three directions. However, the volume of space occupied by such a mechanism is equivalent to the product of the range of motion in the three directions of X, Y, and Z, so the volume of space occupied is relatively large, which is not conducive to the miniaturization of mechanical equipment. Contents of the invention [0003] The purpose of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/00
CPCB25J9/0045
Inventor 杨毅陈伟徐良玉罗均李小毛彭艳
Owner SHANGHAI UNIV
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