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Machining method of rotary casing

A processing method and processing machine technology, which is applied in the processing field of rotary casings, can solve problems such as poor dimensional processing accuracy, large clamping and alignment errors, and long processing cycle, so as to reduce parts alignment errors and improve the pass rate , Improve the effect of processing quality

Active Publication Date: 2022-06-07
CHINA HANGFA SOUTH IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a processing method of a rotary casing to solve the technical problems of large clamping and alignment errors, poor dimensional processing accuracy, and long processing period in the current processing technology of aero-engine rotary casings.

Method used

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  • Machining method of rotary casing

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Embodiment Construction

[0042] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered below.

[0043] like figure 1 As shown, a preferred embodiment of the present invention provides a processing method for a rotary casing, comprising the following steps:

[0044] Step S1: install the first set of fixtures on the worktable of the turning-milling compound machining center, install the small end of the casing to be processed on the first set of fixtures, and perform rough machining on the large end of the casing to be processed;

[0045] Step S2: install the second set of fixtures on the workbench of the turning-milling compound machining center, install the big end of the casing to be processed on the second set of fixtures, and perform rough machining on the small end of the casing to be processed;

[0046] Step S3: finishing the small end of the...

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Abstract

The invention discloses a processing method of a rotating casing. By combining the processing procedures of the rotating casing parts into four turning-milling composite processes, the part transfer, production waiting time and processing preparation time are greatly shortened, and the process route of the parts is shortened. Divided into rough and finish machining, the parts only need to be clamped three times in total, so that the reference conversion of the parts is reduced to 3 times, the alignment error of the parts is greatly reduced, and the turning and milling composite technology is adopted, and the reference and precision holes can be processed in one process , can eliminate repeated clamping and alignment errors, improve the pass rate of precision hole position, and greatly improve the processing quality.

Description

technical field [0001] The invention relates to the technical field of aero-engine manufacturing, in particular, to a processing method of a rotary casing. Background technique [0002] The structure of the rotary casing of the aero-engine is complex and precise, the volume of the fuel tank in the inner cavity is large, the internal oil circuit is complex tortuous, the outer wall is attached with bosses with different vectors and shapes, the cross-sectional size is changeable, and the outlet of the casing oil circuit is matched. Most of them are precision holes, and the machining process requirements are extremely high. Due to the full consideration of processing deformation, precision dimensional processing stability and other issues in the traditional machining process route, the specific process route is as follows: [0003] [0004] [0005] However, the traditional processing route has the following disadvantages: [0006] (1) The process route is divided into r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00Y02P70/10
Inventor 朱朝霞冷红标周剑杰李德强邓元山曾庆双余志平吴乐新
Owner CHINA HANGFA SOUTH IND CO LTD
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