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An air floating turntable

A technology of air-floating turntables and air-floating sleeves, which is applied in the direction of air cushion bearings, machines/brackets, large fixed members, etc., can solve the problems of poor accuracy and stability, and achieve the effect of improving axial static stiffness

Active Publication Date: 2016-06-29
GUANGZHOU HAOZHI ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, these traditional rotating devices need to be driven by an intermediate transmission mechanism, on the other hand, their accuracy and stability are not good

Method used

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  • An air floating turntable

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:

[0019] See figure 1 , the present invention relates to an air bearing turntable 100 , which includes a base 10 , an air bearing shaft 30 , an air bearing sleeve 50 , a torque motor 70 , an air inlet pipe 90 and a reading device 99 . The air bearing 50 is installed on the base 10 . The air bearing shaft 30 is set in the air bearing sleeve 50 . The bottom 32 is connected to the air bearing shaft 30 and can float upward with the air bearing shaft 30 relative to the air bearing sleeve 50 when the air intake pipe 90 is ventilated, and at the same time rotate relative to the air bearing sleeve 50 under the action of the torque motor 70 . The readout device 99 is used to control the rotational speed or positioning of the torque motor 70 .

[0020] The base 10 includes an upper base 11 and a lower base 13 connected to the upper base 11 . The upper base ...

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PUM

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Abstract

An air-floating turntable includes an air-floating shaft and an air-floating sleeve. The air bearing shaft includes a shaft part and a top and a bottom arranged at two opposite ends of the shaft part. The top includes an upper thrust surface opposite the bottom, and the bottom includes a lower thrust surface opposite the top. The air bearing sleeve includes an upper air bearing surface at the top and a lower air bearing surface at the bottom, the upper air bearing surface and the upper thrust surface have a clearance fit, the lower air bearing surface and the lower thrust surface have a clearance fit, the inner surface of the air bearing sleeve and the outer surface of the shaft Clearance fit. The upper air-floating surface, the lower air-floating surface and the inner surface of the air-floating sleeve are provided with a number of air outlets connected with an external high-pressure air source. The air-floating sleeve in the air-floating turntable of the present invention is provided with two opposite upper air-floating surfaces and a lower air-floating surface, thereby improving the axial static stiffness, rotational stiffness and axial rotation accuracy of the air-floating turntable, so that it can be placed on it to be processed Or the detection workpiece is always at a stable height, which will not change due to changes in air pressure.

Description

technical field [0001] The invention relates to a high-precision air static pressure air floating turntable. Background technique [0002] Turntable equipment has been widely used in the manufacturing industry, such as CNC hydraulic turntable and so on. In the existing air bearing turntable, a servo motor and a shaft coupling are usually used for driving. In addition, only one thrust surface is provided with high-pressure gas in the air bearing, and the other end is in a free state. When the air pressure rises, the air bearing shaft will move slightly toward the free end; when the air pressure decreases, the air bearing shaft will come down again under the action of gravity, that is, the equilibrium position will change with the change of air pressure. On the one hand, these traditional rotating devices need to be driven by an intermediate transmission mechanism, and on the other hand, their precision and stability are not good. Contents of the invention [0003] In vie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16M11/06F16M11/18F16C32/06
CPCF16C32/0696B23Q1/38B23Q16/102B23Q2210/004B23Q2220/002F16C32/0622F16C2322/39
Inventor 汤秀清
Owner GUANGZHOU HAOZHI ELECTROMECHANICAL
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