High-precision deep hole grinding electric spindle structure

A high-precision, electro-spindle technology, used in grinding machine parts, grinding/polishing equipment, and machine tools designed for grinding the rotating surface of workpieces, etc. and other problems, to achieve the effect of improving grinding accuracy, strengthening radial rigidity, and easy control accuracy.

Inactive Publication Date: 2012-05-09
WUXI MACHINETOOL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing high-precision deep hole grinding, due to the relatively large length of the deep hole machining spindle, the bearing needs to bear the radial load of the external sleeve during the rotating process. Since the sleeve is a ring structure, the diameter of the spindle will The sharp drop in rigidity will cause tool give-up and vibration during deep hole grinding, thereby reducing the grinding accuracy. In addition, the existing spindle is a single spindle with a long spindle, so it is cumbersome, difficult to process, and difficult to control the rotation its precision

Method used

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Embodiment Construction

[0009] See figure 1 , which includes a main shaft and a sleeve, the main shaft includes a front main shaft 1 and a rear main shaft 2, the sleeve includes a front sleeve 3 and a rear sleeve 4, the front end of the front main shaft 1 is provided with a grinding wheel structure 5, and the outer ring surface of the front main shaft 1 The front sleeve 3 is set, the outer ring surface of the rear main shaft 2 is set with the stator 6, the outer ring surface of the stator 6 is set with the rear sleeve 4, the front sleeve 3 is a variable section sleeve, and the rear end of the front main shaft 1 passes through Coupling 7 is connected to the front end of rear main shaft 2, and front bearing 8 and rear bearing 9 are arranged between the front end annulus of front main shaft 1, the rear end annulus and the inner wall of front sleeve 3, and the front end annulus of rear main shaft 2, rear The end ring surface is provided with a front bearing 10 and a rear bearing 11 . The variable sectio...

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Abstract

The invention provides a high-precision deep hole grinding electric spindle structure. The radial rigidity of a spindle is strengthened, vibration is reduced when a deep hole is ground, grinding precision is improved, the spindle is light and convenient and is simple in processing, and rotation precision can be controlled easily. The high-precision deep hole grinding electric spindle structure comprises the spindle and a sleeve, and is characterized in that the spindle consists of a front spindle and a rear spindle, the sleeve comprises a front sleeve and a rear sleeve, a grinding wheel structure is arranged at the front end of the front spindle, the front sleeve is sleeved on an outer edge annular surface of the front spindle, a stator is sleeved on an outer edge annular surface of the rear spindle, the rear sleeve is sleeved on an outer edge annular surface of the stator, the front sleeve is a section-variable sleeve, the rear end of the front spindle is connected with the front end of the rear spindle by a coupler, a bearing is disposed among a front end annular surface and a rear end annular surface of the front spindle and the inner wall of the front sleeve, and a front end annular surface and a rear end annular surface of the rear spindle are provided with bearings.

Description

technical field [0001] The invention relates to the technical field of the spindle structure of a high-precision grinding machine, in particular to a high-precision deep hole grinding electric spindle structure. Background technique [0002] In the existing high-precision deep hole grinding, due to the relatively large length of the deep hole machining spindle, the bearing needs to bear the radial load of the external sleeve during the rotating process. Since the sleeve is a ring structure, the diameter of the spindle will The sharp drop in rigidity will cause tool give-up and vibration during deep hole grinding, thereby reducing the grinding accuracy. In addition, the existing spindle is a single spindle with a long spindle, so it is cumbersome, difficult to process, and difficult to control the rotation its precision. Contents of the invention [0003] In view of the above problems, the present invention provides a high-precision deep hole grinding electric spindle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B41/04B24B5/48
Inventor 朱凯旋沈锡仁蔡英
Owner WUXI MACHINETOOL
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