High-precision excircle grinding tool for shaft parts

A technology for cylindrical grinding and shaft parts, which is applied in the field of high-precision cylindrical grinding tools for shaft parts, can solve the problems of unreasonable guidance, insufficient rigidity, uneven deformation of grinding tools, etc. Leading effect

Active Publication Date: 2019-04-05
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to improve the problems of uneven deformation, insufficient rigidity and unreasonable guidance of existing grinding tools, and provide a high-precision cylindrical grinding tool for shaft parts

Method used

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  • High-precision excircle grinding tool for shaft parts
  • High-precision excircle grinding tool for shaft parts
  • High-precision excircle grinding tool for shaft parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: The grinding tool body adopts gray cast iron, and the outer circle size is Grinding the quenched bearing steel, the steps are as follows:

[0044] Step 1: Use the grinding mandrel to trim the inner hole of the grinding tool to ensure that all the inner holes are ground;

[0045] Step 2: Clean and wipe the grinding tool, and adjust the inner hole of the grinding tool to the size of the outer circle to be ground;

[0046] Step 3: Choose a suitable abrasive and apply it evenly on the outer circle of the part;

[0047]Step 4: During work, by adjusting the pressing force of the adjusting bolt 2, the grinding and cutting force and the dimensional tolerance of the ground workpiece are controlled to achieve high-precision grinding of the ground part.

[0048] During the grinding process, the grinding liquid must be added at any time, and it should be added frequently and less, and the pressing force of the adjusting screw should be adjusted at any time accordin...

Embodiment 2

[0050] Embodiment 2: The grinding tool body is made of nodular cast iron. The outer circle size is The quenched bearing steel is ground, and its grinding step is identical with embodiment 1, detects the outer circle degree of parts after grinding, as Figure 8 As shown, the outer roundness is less than 0.2um.

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Abstract

The invention discloses a high-precision excircle grinding tool for shaft parts, belongs to the field of precision machining, and aims to provide a tool for processing high-precision excircles. The tool is made of a common cast iron material, and comprises a grinding sleeve body (1), an adjustable bolt (2) and an adjustable nut (3). According to the grinding tool, a grinding sleeve inner hole is shrunk through the adjustable nut and the adjustable bolt, the roundness change before and after the inner hole is shrunk does not exceed 1 micrometer, and a sextic harmonic wave is a main harmonic wave component in harmonic wave components of roundness. The roundness of the excircle ground by adopting the grinding tool is smaller than 0.2 micrometer.

Description

technical field [0001] The invention belongs to the technical field of precision machining, and in particular relates to a high-precision cylindrical grinding tool for shaft parts. Background technique [0002] High-precision spindles are widely used in high-precision shafting, guide rails and other mechanical components. The accuracy requirements of shafting and guide rails have been raised to the nanometer level. As the core component of the high-precision shaft system and guide rail, the precision of the spindle must also be improved to the nanometer level. The typical feature is that the outer circle is less than 0.2 microns. The existing high-precision grinding machines cannot process the roundness and other indicators of the outer circle of the part to such a high precision. Therefore, after the outer circle is precision ground, it needs to be ground to improve its accuracy to within 0.2 microns. [0003] Chinese patent CN 205085808 U discloses a tool for grinding hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B37/00B24B37/34
CPCB24B37/00B24B37/34Y02P70/10
Inventor 陈智明余伦高七一安祥波刘会静马顺刚辜勇
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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