Device for eliminating back clearance of X-shaft drive gear box of machine tool

A gearbox and X-axis technology, which is applied in the field of machine tools, can solve problems affecting the motion accuracy and service life of the X-axis transmission gearbox, and achieve the effect of eliminating motion accuracy and service life, and eliminating the impact

Inactive Publication Date: 2010-06-30
WEIHAI HUADONG AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the preload is rigid, the vibration and shock during the operation of the machine tool will directly affect the motion accuracy and service life of the X-axis transmission gearbox

Method used

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  • Device for eliminating back clearance of X-shaft drive gear box of machine tool
  • Device for eliminating back clearance of X-shaft drive gear box of machine tool

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Experimental program
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Embodiment Construction

[0010] exist figure 1 Among them, the present invention is provided with a gear shaft 2, the gear shaft 2 is jointly supported by the upper needle roller bearing 8 and the lower needle roller bearing 9, a thrust bearing 2 is fixed on the gear shaft 1 on the upper side of the upper needle roller bearing 8, and the upper end of the thrust bearing 2 A cover 3 is set on the gear shaft 1 of the cover 3, a disc spring 4 is installed in the inner cavity of the cover 3, a pad 5 is arranged above the disc spring 4, a nut 6 is screwed on the end of the gear shaft 1, and the nut 6 holds the disc through the pad 5. The shape spring 4 is compressed in the cover 3, and the radial direction of the nut 6 is processed with a threaded through hole, and a set screw 7 is screwed in the through hole.

[0011] When the present invention wants to eliminate the backlash, loosen the set screw 7, turn the nut 6 with a special wrench and press the disk spring 4 through the pad 5, the axial degree of fre...

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PUM

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Abstract

The invention relates to a device for eliminating back clearance of an X-shaft drive gear box of a machine tool, belonging to the field of machine tool equipment. The device of the invention is provided with a gear shaft which is supported by an upper needle roller bearing and a lower needle roller bearing; a thrust bearing is fixed on a gear shaft at the upper side of the upper needle roller bearing; a sleeve is sleeved on the gear shaft at the upper end of the thrust bearing; a disk spring is installed in the sleeve; a nut is screwed at the end part of the gear shaft; and the nut compresses the disk spring in the sleeve. In the invention, the pre-pressure is applied to the thrust bearing through the spring, and the mechanism for eliminating the back clearance can eliminate the influences of vibration and impact in the operating process of the machine tool on the kinematic accuracy and service life of the X-shaft drive gear box.

Description

technical field [0001] The invention relates to the field of machine tools, in particular to a device that can effectively improve the impact of vibration and impact on bearings and gears of an X-axis transmission gearbox during the X-axis operation of the machine tool. Background technique [0002] As we all know, in the current anti-backlash mechanism of the X-axis transmission gearbox, the pre-pressure is to squeeze the thrust bearing through the screw thread, and pull a pair of helical gears with opposite helical directions on the same shaft to move axially to achieve the purpose of eliminating backlash . But because the preload is rigid, the vibration and shock during the operation of the machine tool will directly affect the motion accuracy and service life of the X-axis transmission gearbox. Contents of the invention [0003] In order to overcome the impact of vibration and impact during the operation of the machine tool on the precision and life of the X-axis tran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q5/56
Inventor 梁义成刘炳文闫海鹏
Owner WEIHAI HUADONG AUTOMATION
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