Machining method for casing casting part

A technology of mechanical processing and casting, applied in the field of mechanical processing of parts, can solve the problems of backward casing casting processing technology, low production efficiency, poor processing quality, etc., to improve processing quality, save fitter marking links, processing The effect of high technical precision

Inactive Publication Date: 2016-02-03
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it takes a lot of alignment time to align the engraved line, so that the processing technology of casing castings has been at a backward level, and

Method used

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  • Machining method for casing casting part
  • Machining method for casing casting part
  • Machining method for casing casting part

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0016] Such as Figure 1~4 Shown, a kind of machining method of casing casting, comprises the steps:

[0017] 1. Casting processing benchmark: design the raw material drawing of the casing casting according to the design drawing of the casing parts, determine three positioning surfaces 6 and positioning holes 7 on the rear end surface of the casing casting, and accurately cast the casing casting on the casing casting. Three positioning surfaces 6 and positioning holes 7;

[0018] 2. The manufacture of machining fixtures: the fixture includes a disc 1, a top block 2, a positioning pin 4 and a pressing card 3; the top block 2 is arranged on the disc 1 for supporting the The positioning surface 6; the positioning pin 4 is arranged on the disc 1 for positioning the positioning hole 7; the pressing card 3 is installed on the outer edge of the disc 1, and a pressing Block 5, used to compress the casing casting;

[0019] 3. Process the casing casting: install the fixture on the ma...

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PUM

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Abstract

The invention relates to a machining method for parts, in particular to a machining method for a casing casting part. According to the technical scheme, the machining method for the casing casting part includes the following steps that firstly, the machining benchmark is cast, wherein the three positioning faces and positioning holes are precisely cast in the casing casting part; secondly, a machining clamp is manufactured, wherein the clamp comprises a disc, jacking blocks, positioning pins and pressing clamping flanges; and thirdly, the casing casting part is machined, wherein the clamp is arranged on a machine tool, the disc is aligned, the casing casting part is arranged on the clamp, and machining is conducted. By means of the machining method for the casing casting part, the machining benchmark is optimized, the brand-new machining strategy is adopted, machining efficiency and the quality of parts are improved effectively, cost is lowered, and the working intensity of labors is lowered.

Description

technical field [0001] The invention relates to a machining method for parts, in particular to a machining method for casing castings. Background technique [0002] An aero-engine casing blank is a precision casting. The size accuracy and surface quality of the casing casting blank are poor, and the surface of the casing casting has no high-precision surface that can be used as a machining reference. In the previous processing, before the rough machining of the casing castings, a more cumbersome fitter scribing process was required. The fitter had to place the casing castings on the platform, and determine the axial direction of the casing castings by aligning several planes. Radial and angular datums, and the determined datums are marked on the surface of the casing casting in the form of a scribe. During the rough machining of casing castings, it is necessary to align the engraved lines on the surface of the parts as the machining reference for machining. This processing...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 王传滨周代忠杨文学闻男
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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