Air cushion driver for air float displacement table

A technology of displacement stage and air cushion, applied in the directions of transportation and packaging, instrument parts, instruments, etc., can solve the problems of high cost, poor motion sensitivity, affecting the motion accuracy of the worktable, etc., and achieve the effect of low cost and high motion sensitivity.

Active Publication Date: 2009-08-26
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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  • Abstract
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AI Technical Summary

Problems solved by technology

Its disadvantages are: the cost of the lead screw / nut form and the light rod / bearing form is high, and the movement error of the driving device will affect the movement accuracy of the worktable
Poor movement sensitivity in the form of steel belt drive

Method used

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  • Air cushion driver for air float displacement table

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Embodiment Construction

[0014] The present invention will be described in further detail below. see figure 1 , the air cushion driving device of the present invention includes a transmission mechanism composed of a trolley 1, a metal guide rail 2 and a trolley drive mechanism, the metal guide rail 2 is installed on the granite guide rail 4, and there is a moving work supported on the granite guide rail 4 by an air cushion 5 Platform 6, said trolley drive mechanism is one of the following structures:

[0015] a. It consists of a drive motor 3 fixed on the trolley 1. figure 1 The embodiment shown is such a structure.

[0016] b. It consists of a nut fixed on the trolley 1 and a lead screw fixed on the granite guide rail 4.

[0017] c. It is composed of the bearing fixed on the trolley 1 and the light rod fixed on the granite guide rail 4.

[0018] d. It is composed of steel belt or wire rope transmission mechanism.

[0019] The above trolley driving mechanisms are all known technologies, and will ...

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Abstract

The invention belongs to the precision mechanical technology and relates to the improvement of the driving device of the air bearing displacement platform. It includes a transmission mechanism composed of a trolley 1, a metal guide rail 2 and a trolley driving mechanism. It is characterized in that the trolley 1 is located in the inner cavity of the mobile workbench 6 and has two baffles 7 and two air cushions 9. An air cushion 9 and a baffle 7 are respectively installed between the front and rear ends along the moving direction and the end face 8 of the inner chamber of the movable workbench 6 . The invention has low cost and high motion sensitivity; the motion error of the driving device will not affect the motion accuracy of the workbench.

Description

technical field [0001] The invention belongs to the precision mechanical technology and relates to the improvement of the driving device of the air bearing displacement platform. Background technique [0002] The driving device of the existing air bearing displacement stage adopts various methods such as screw / nut form, light rod / bearing, steel belt and the like. Its disadvantages are: the cost of the lead screw / nut form and the feed rod / bearing form is high, and the movement error of the driving device will affect the movement accuracy of the worktable. The motion sensitivity of the steel belt drive form is poor. Contents of the invention [0003] The purpose of the present invention is to provide an air cushion driving device with low cost, high motion sensitivity, and the motion error of the driving device will not affect the motion accuracy of the workbench. [0004] The technical solution of the present invention is: an air cushion driving device for an air bearing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G12B5/00B65G35/00
Inventor 兰一兵朱振宇
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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