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Method for detecting diameter of outer wall of tapered case of aviation engine on line

A technology of aero-engine and detection method, applied in the direction of measuring devices, instruments, etc., can solve problems such as prolonging the processing cycle of products, and achieve the effect of ensuring accuracy

Inactive Publication Date: 2015-04-22
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the precision of the part is very high, the error caused by the secondary clamping on the positioning accuracy has a great influence on the pass rate of the part for repair, and at the same time, the processing cycle of the product is virtually extended

Method used

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  • Method for detecting diameter of outer wall of tapered case of aviation engine on line
  • Method for detecting diameter of outer wall of tapered case of aviation engine on line
  • Method for detecting diameter of outer wall of tapered case of aviation engine on line

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Embodiment 1

[0081] The invention provides an on-line detection method for the diameter of the tapered outer wall of an aero-engine casing, which is characterized in that: the online detection method for the diameter of the aero-engine casing's conical outer wall is as follows:

[0082] (1) Main components

[0083] (1) Five-coordinate CNC milling machining center equipped with Renishaw MP10 touch probe

[0084] (2) Cone casing parts and mounting seats on the surface of the cone casing

[0085] (3) Probe precision correction ring gauge for online measurement

[0086] (4), measurement method: point contact

[0087] (5) Sinumeric840D online measurement technology of Siemens control system for machine tools, including the following:

[0088] 1) Probe precision calibration technology

[0089] 2) Probe motion trajectory control program and measurement trajectory optimization strategy

[0090] 3) Selection of measurement locations, number of sampling points, and precision control strategies ...

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Abstract

The invention discloses a method for detecting the diameter of an outer wall of a tapered case of an aviation engine on line. According to the method, a five-coordinate numerical control milling center with a Renishaw MP10 trigger-type measuring head is equipped, tapered case parts and a mounting seat on the surface of a tapered case are equipped; a fine adjustment ring gauge of the used measuring head is measured on line; a point contact-type measurement mode is adopted; a machine tool siemens control system Sinumeric 840 D on-line measurement technology is adopted; and an on-line measurement quick tool path amendment and error compensation generation technology is adopted. The method has a broad application prospect; and by the on-line measurement technology, a numerically-controlled machine tool is impelled to form a machining and detecting integrated numerical control machining unit. By the method, the traditional manufacturing mode that a design characteristic is equipped with a set of measurement tool in the current industry is changed, the manufacturing cost of the tool is saved, repair labor-hour is saved, and first-pass yield of product processing is improved, so that the development period and the production cost of new products are reduced.

Description

technical field [0001] The invention relates to the technical field of automatic detection of surface dimensions of parts with complex profiles after numerical control machining in the machining industry, and in particular relates to an on-line detection method for the diameter of the tapered outer wall of an aero-engine casing. Background technique [0002] With the rapid development of the aero-engine manufacturing industry, there are more and more types of new product development, not only pursuing the development progress and cost, but also paying more attention to the initiative to win the competition with product quality. This field puts forward higher and higher requirements for machining accuracy and efficiency. Enterprises generally check the positional tolerances of those complex surface features that cannot be detected by general measuring tools and special measuring tools in the finished product inspection and supply and demand end links. After the end, it is unl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/10
Inventor 胡晓群杨涧石冯湛李家永岳召启
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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