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A Pneumatic Spindle Device with Hemispherical Bearings

A technology of spindle device and hemispherical bearing, applied in the direction of manufacturing tools, large fixed members, metal processing machine parts, etc., can solve the problems of continuous lubrication, poor rotation stability, spindle processing, etc.

Active Publication Date: 2017-11-21
北京海普瑞森超精密技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a pneumatic spindle device with hemispherical bearings to solve the problems of spindle processing, complex assembly, poor rotation stability, and continuous lubrication

Method used

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  • A Pneumatic Spindle Device with Hemispherical Bearings

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Embodiment Construction

[0018] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0019] Such as figure 1 As shown, a pneumatic spindle device with hemispherical bearings includes a box body, a spindle, a left support shaft assembly and a right support shaft assembly.

[0020] Both the left supporting shaft assembly and the right supporting shaft assembly include a hemispherical lining, a hemispherical air bearing and an axle seat. The shaft seat has a hemispherical concave cavity and a central through hole. The shaft seats in the left support shaft assembly and the right support shaft assembly are respectively fixedly connected with the left and right ends of the box body and the two shaft seats are arranged opposite to each other; A hemispherical lining is arranged in the cavity...

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Abstract

The invention provides a pneumatic main shaft device with a semispherical bearing. The pneumatic main shaft device comprises a box body, a main shaft, a left supporting shaft assembly and a right supporting shaft assembly. The left supporting shaft assembly and the right supporting shaft assembly comprise semispherical liner supporting parts, semispherical air bearings and shaft seats. The main shaft penetrates center holes of the semispherical liner supporting parts, the semispherical air bearings and the shaft seats of the left supporting shaft assembly and the right supporting shaft assembly. The shaft seats are provided semispherical concave cavities and center through holes. The semispherical liner supporting parts are arranged in the semispherical concave cavities of the shaft seats. The semispherical air bearings are arranged between the shaft seats and the semispherical liner supporting parts to be matched with the shaft seats and the semispherical liner supporting parts. The semispherical air bearings are in a semispherical shape lack of a spherical cap and are provided with the semispherical concave cavities in the shape similar to a bowl without a bottom support and provided with the center through holes. Due to the semispherical structure, a part can be automatically aligned, due to the fact that air films are formed between the semispherical air bearings and the semispherical liner supporting parts of the left supporting shaft assembly and the right supporting shaft assembly, the main shaft can be supported to rotate without friction, stability of rotating of the main shaft is ensured, lubricating is not needed, and machining and assembling are easy.

Description

technical field [0001] The invention relates to the technical field of automatic machine tool devices, in particular to a pneumatic spindle device with hemispherical bearings. Background technique [0002] With the development of science and technology, the demand for various machine tool equipment is increasing, and the precision requirements for machine tool equipment are getting higher and higher. Relying on traditional manual or semi-automatic operation methods cannot meet the needs of the development of science and technology today. For the precision machining process of parts and components of machine tools such as turning, milling and grinding, the stability of the spindle rotation and the degree of wear of the spindle determine the machining accuracy of the parts. . The main shaft of ordinary machine tool equipment is mainly supported by bearings, and the mechanical friction and wear are quite serious. As the processing time increases, the stability of the main shaf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B19/02
CPCB23Q1/70
Inventor 李金明谷晓欣王雪松
Owner 北京海普瑞森超精密技术有限公司
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