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A 3-DOF Parallel Mechanism Suitable for Platform Movement

A technology with a degree of freedom and a platform, applied in the direction of manipulators, program-controlled manipulators, manufacturing tools, etc., can solve the problems of unfavorable mechanical equipment miniaturization, large space occupation, etc., achieve good isotropy, reduce manufacturing and maintenance costs, and reduce The effect of occupation

Active Publication Date: 2021-08-10
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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  • A 3-DOF Parallel Mechanism Suitable for Platform Movement
  • A 3-DOF 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] Such as 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] Such as 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 conn...

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Abstract

The invention relates to a three-freedom parallel mechanism suitable for platform movement, which is composed of a fixed platform, a moving platform and three movable branches with identical structures connecting the two platforms. Among them, each movable branch is a parallelogram connecting rod slider mechanism, which is composed of 3 connecting rods, 2 sliding rods and 2 sliders, and is connected to the fixed platform and the moving platform through 2 rotating pairs. . Both the fixed platform and the moving platform adopt an equilateral triangle structure to ensure that the three movable branches are symmetrically distributed at the vertices of the equilateral triangle. The invention adopts a symmetrical structure, which can realize the translational motion of the motion platform along the three directions of X, Y, and Z, and is suitable for various mechanical structures that need to realize the movement of the platform, so it has broad application prospects. In addition, the mechanism can effectively reduce space occupation, reduce manufacturing and maintenance costs, and maintain isotropy during motion.

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 Patents(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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