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A high-planarity inner step end surface grinding tool and grinding method

A grinding tool and flatness technology, applied in grinding tools, grinding machine tools, grinding devices, etc., can solve problems such as the difficulty of grinding internal sections, and achieve the effect of shortening the processing cycle, improving the processing qualification rate and reasonable cost.

Active Publication Date: 2022-01-21
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the difficult problem of internal section grinding, to explore ultra-high precision internal end surface grinding technology and to design such grinding tools

Method used

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  • A high-planarity inner step end surface grinding tool and grinding method
  • A high-planarity inner step end surface grinding tool and grinding method
  • A high-planarity inner step end surface grinding tool and grinding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Exploration and establishment of the grinding process: Ordinary end face grinding usually applies a pre-configured grinding paste on a high-precision platform, and then holds the part to buckle the grinding end surface on the platform and perform manual grinding by marking an "8". Compared with ordinary grinding, the grinding space of the inner end face is small and the precision is high, so it is necessary to carry out a variety of new process method tests. In order to remove the grinding allowance of the part to a certain extent and meet the high-precision grinding requirements, the grinding tool and the grinding surface of the part should have relative movement, and the processing force should not be too large to prevent the deformation of the part. Therefore, when grinding the part, the grinding direction of the part and the grinding tool must be Fixed, the processing is clockwise or counterclockwise from the beginning to the end, and different grinding di...

Embodiment 2

[0045] Embodiment 2: In this embodiment, the structure of the grinding plane is changed on the basis of Embodiment 1. There are 3 through grooves with a mutual angle of 120°, and there are also 3 half through grooves.

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Abstract

The invention discloses a high flatness internal step end surface grinding tool, which comprises a grinding working surface, on which there are radially distributed through grooves, and there are half through grooves between adjacent two through grooves, and the parts are divided into three parts For fine grinding. This plan is used to design the grinding tool, and the above-mentioned grinding method is used to process a certain type of engine support seat assembly, the efficiency is more than doubled than before, and the qualified rate of parts processing is increased to more than 90%.

Description

technical field [0001] The invention relates to a grinding tool structure and a corresponding grinding method. Background technique [0002] With the continuous improvement of aero-engine technology, the dimensional accuracy and structural design of key components are also constantly innovative and high-precision. For example, the inner end surface of a certain type of engine support seat assembly requires a flatness of 0.0012 and a surface roughness of 0.2, such as figure 1 shown. This type of grinding is different from ordinary grinding of the outer end face. The surface to be ground is recessed under the steps. This kind of grinding space is greatly limited, which greatly increases the requirements for workers' processing technology and grinding tools, which is equivalent to the difficulty of ordinary end face grinding. More than 10 times. [0003] Ordinary end face grinding usually applies a pre-configured grinding paste on a high-precision platform, and then holds th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B37/11B24B37/34B24B1/00
CPCB24B37/11B24B37/34B24B1/00
Inventor 吴东华杨新建赵立昌任先伟杨秀军王维林廖贵波孙刚
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD