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Pre-pressed type air bearing

An air bearing and seat body technology, which is applied in the field of platform adjustment components, can solve the problems of complicated manufacturing and reduced stability.

Inactive Publication Date: 2012-07-25
HIWIN MIKROSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above existing methods still have the following disadvantages: first, additional space needs to be provided for designing the magnet preload, which makes the overall manufacturing more complicated; second, when the preload magnet provides the air bearing preload, it will form a torque, reduce the overall stability of the

Method used

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Examples

Experimental program
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Embodiment 1

[0032] see Figure 2 to Figure 3 As shown, the preloaded air bearing 10 provided in a preferred embodiment of the present invention is used to be arranged on a platform (not shown in the figure), and mainly consists of a seat member 20, an accommodating portion 30, a The magnetic part 40 and an elastic part 50 are composed, wherein:

[0033] The seat part 20 has a square seat body 21, an adjustment part 22 composed of a screw, so that the long axis of the shaft corresponds to the geometric central axis of the seat body 21, and one end of the long axis of the shaft is screwed into a concave It is provided in the screw hole 212 of the connecting end surface 211 on the bottom side of the seat body 21, and the other end of the long axis of the shaft extends outward for a predetermined length from the connecting end surface 211 on one side of the seat body 21, and the extended end is slidably connected to the platform Above, at least one air passage 23 is provided inside the seat ...

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Abstract

The invention provides a pre-pressed type air bearing, which is arranged on a platform and comprises a base piece, at least one air path, at least one containing part, at least one magnetic piece and an elastic part, wherein the base piece comprises a base body and an adjusting part; the adjusting part extends outwards from the connection end surface at one side of the base body along a geometric center shaft direction of the base body, and enables the extending tail end to be slidably connected on the platform; the air path is arranged inside the base body and forms at least one air outlet on the working end surface of the base body, back to the connection end surface of the base body; the containing part is concavely arranged on the working end surface; the magnetic piece is contained in the containing part; and the elastic part is slidably arranged on the adjusting part, is arranged between the base body and the platform and is used for supplying elastic force so as to enable a buffer distance to be kept between the base body and the platform. The pre-pressed type air bearing disclosed by the invention has the advantages of saving space, simplifying manufacturing process, and being free from moment formed in a process of generating pre-pressing force, and easy for controlling the pre-pressing force and the like.

Description

technical field [0001] The invention relates to a platform adjustment element, in particular to a preloaded air bearing. Background technique [0002] With the trend of precision and miniaturization of parts of high-tech products, the requirements for the positioning accuracy of the working platform are also getting higher and higher. In order to achieve high precision, currently, a linear motor is used to directly drive a working platform to improve machining accuracy and quickly achieve positioning. However, when the linear motor drives the working platform to move, the joint surface between the working platform and a guide rail will be interfered by frictional force during the actuation process, and the overall stability and precision will be reduced. [0003] see figure 1 As shown, the current prior art is to set an air bearing 1 on a working platform 2, and then directly cooperate with a linear motor to actuate, wherein, there is an air gap 4 between the air bearing 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/06
Inventor 张维麟何长政
Owner HIWIN MIKROSYST
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