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Machining method and clamping fixture for high-precision thin-wall elastic opening piston ring part

A technology of elastic opening and processing method, which is applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc.

Active Publication Date: 2021-04-02
XIAN AERO ENGINE CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems in the processing of existing high-precision thin-walled opening parts, the present invention provides a processing method and clamping fixture for high-precision thin-walled elastic opening parts. The light transmittance and opening size requirements under the working state, the processing quality of the same batch of parts is good, and the pass rate is high; it also provides a reliable positioning and clamping fixture, the process method is simple, the operation is convenient, the reliability is good, and it is easy to popularize and apply

Method used

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  • Machining method and clamping fixture for high-precision thin-wall elastic opening piston ring part
  • Machining method and clamping fixture for high-precision thin-wall elastic opening piston ring part
  • Machining method and clamping fixture for high-precision thin-wall elastic opening piston ring part

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Embodiment

[0052]The method of processing the high-precision thin-walled elastic opening rising ring parts provided herein, including the steps of:

[0053]1) Internal and external models: use CNC lathe processing parts inner holes and outer circles, and the inner holes and outer circles are separated;

[0054]2) Milling insertion: Remove the balance other than the inner hole auxiliary process positioning hole;

[0055]In this embodiment, the number of process positioning holes is 3.

[0056]3) Tigan: cutting parts into multiple annular sheets, and multiple ends of the plurality of annular flakes are retained;

[0057]4) Rust end surface: A plurality of control plane grinding machines grinds the plurality of annular sheets as the positioning reference, and the end surface is retained;

[0058]5) Dump: The opening is separately cut on the plurality of annular sheets, and the opening size is less than the final opening size;

[0059]6) Heat treatment: The auxiliary process positioning hole of the inner hole of the p...

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Abstract

The invention belongs to the technical field of machining, and relates to a machining method and clamping fixture for a high-precision thin-wall elastic opening piston ring part. The method comprisesthe steps: 1) turning an inner mold part and an outer mold part; 2) milling the inner mold part; 3) cutting into pieces; 4) grinding an end face; 5) cutting a groove; 6) quenching and tempering heat treatment; 7) grinding an end face; 8) turning an outer circle; 9) cutting an opening; and 10) cutting an inner hole, grinding the inner hole and grinding the outer circle. According to the method, parts are firstly cut and then overlaid to be machined, deformation caused by final opening cutting is reduced, the light transmittance and opening size requirements of the parts in the working state aremet, the machining quality of the parts in the same batch is good, and the percent of pass is high; and the reliable positioning and clamping fixture is adopted, the process method is simple, operation is convenient, reliability is good, and application and popularization are easy.

Description

Technical field[0001]The present invention belongs to the field of machining, and the processing method of high-precision thin-walled elastic opening rising ring parts and assembled fixtures.Background technique[0002]In the machining of mechanical parts, particularly parts having a thin wall, opening, high precision requirements. Specificfigure 1 As shown, the axial thickness of the part is 2mm, the wall thickness is 2.5 mm, and the opening size of 2.5 to 4 in the free state is required (ie: the outer diameter compression.The outer puller is not more than 0.01, and the opening size is 0.2 to 0.45. For such parts, existing processing processes (seefigure 2 ), Including heat treatment - car inside and outdoor - water-cutting - cutting port; however, this processing method is used, after the opening, the parts will be elastically deformed, and the deformation is irregular However, it is impossible to ensure the light transmissivity and open size requirements in the working state of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23Q3/06
CPCB23P15/00B23Q3/065Y02P10/25
Inventor 刘勇孙莉洁赵攀峰陶保平郝建勇翟婷婷
Owner XIAN AERO ENGINE CONTROLS
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