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Large-stroke precise alignment platform

A technology of alignment platform and large stroke, applied in the field of machinery, can solve the problems of small rotation range of moving platform, limit the working space of parallel platforms, limit the rotation range of motion branch chains, etc., and achieve the effect of accurate alignment and large working space

Pending Publication Date: 2019-07-16
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But the deficiencies of the precision alignment platform in the prior art are: the movement branch chain of the precision alignment platform and the connection end of the fixed platform are mostly fixedly connected, and this structure limits the rotation range of the movement branch chain, which in turn leads to The rotation range is small, which limits the working space of the parallel platform

Method used

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Embodiment Construction

[0021] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0022] Such as Figure 1-2 As shown, the large-stroke precision alignment platform includes a moving platform 1 and a fixed seat 2, the fixed seat 2 is in the shape of a ring, and the top of the fixed seat 2 is slidably connected with a number of chucks 3 that can rotate around the circumferential direction of the fixed seat 2. Each chuck 3 is fixed with a guide rail 4, and each guide rail 4 is slidably connected with a slider 5, and the top of each slider 5 is rotatably connected with a collar 6, and each collar 6 is sleeved on the corresponding slider 5 respectively. Each collar 6 is rotatably connected with the moving platform 1.

[0023] Such as Figure 2-3 As shown, preferably, the outer surface of each chuck 3 is a...

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Abstract

The invention provides a large-stroke precise alignment platform and belongs to the technical field of machinery. The technical problem that a movable platform of an existing precise alignment platform is small is solved. The large-stroke precise alignment platform comprises a movable platform and a fixed base, the fixed base is annular, the top of the fixed base is in sliding connection with a plurality of chucks capable of being rotated in the circumferential direction of the fixed base, guide rails are fixed on the chucks, sliding blocks are in sliding connection with the guide rails, shaftrings are rotationally connected to the tops of the sliding blocks, the tops of the sliding blocks are sleeved with the shaft rings correspondingly, and the shaft rings are rotationally connected with the movable platform. By means of the alignment platform, the movable platform can be translated and rotated in a large range, the working space is larger, and alignment is more accurate.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a large-stroke precision alignment platform. Background technique [0002] At present, among the equipment using high-precision alignment platforms in the prior art, most of the alignment systems use parallel mechanisms, and the upper and lower platforms of the parallel mechanism are supported by independent parallel components, so they have the characteristics of relatively stable structure and high rigidity , in addition, due to the ring-shaped closed-chain constraint between the frame and the end effector, the parallel mechanism has a greater load-carrying capacity, and because there is no accumulation and amplification effect of the errors of each joint, the parallel mechanism has small errors and high precision; The driving part of the parallel mechanism is easy to install on the frame to reduce the motion load and has good dynamic performance. The parallel structure has the ...

Claims

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Application Information

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IPC IPC(8): B25H1/14F16C29/02
CPCB25H1/14F16C29/02
Inventor 杨根刘杰林王卫军张弓侯至丞蔡君义李友浩张波涛
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI