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Machining method of spatial angle small hole of aviation component

A technology of space angle and processing method, which is applied in the field of aero-engines, can solve problems such as long processing time, low processing quality, and unstable processing efficiency, so as to improve the stability of processing quality, improve processing efficiency, and avoid calculation process and processing process. Effect

Active Publication Date: 2019-07-30
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology

[0003] The invention provides a method for processing small holes with spatial angles in aviation parts to solve the technical problems of low processing quality, long processing time and unstable processing efficiency in traditional small hole processing methods with spatial angles

Method used

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  • Machining method of spatial angle small hole of aviation component
  • Machining method of spatial angle small hole of aviation component

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specific Embodiment approach

[0054] Part aperture requirement is Φ0.6 0 +0.05 And the five-axis high-speed EDM machine tool has a discharge gap of 0.03 to 0.05, so the Φ0.55 electrode is used for processing;

[0055] 1. Clamp the parts on the working turntable of the five-axis high-speed EDM machine tool, use a dial gauge to check the runout value of the reference circle of the aviation parts, and make fine adjustments to ensure that the runout value is not greater than the roundness of the reference circle +0.02 Align and clamp the parts so that the center of the parts coincides with the center of the work turntable;

[0056] 2. Establish a working Cartesian coordinate system, such as figure 1 As shown, the intersection point of the central axis of the part (the center of the turntable) and the reference plane is set as the coordinate origin; the direction from the work turntable to the electrode spindle through the origin is the positive direction of the Z axis; the X coordinate is horizontal and perp...

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Abstract

The invention discloses a machining method of a spatial angle small hole of an aviation component. The machining method adopts a five-axis high-speed electric spark machine tool for machining, adoptsa coordinate projection method for coordinate conversion of the spatial angle small hole size in the machining process, converts the coordinate conversion into a machining instruction that is operableon the five-axis high-speed electric spark machine tool, and finishes machining of the final size and angle. According to the machining method of a spatial angle small hole of an aviation component,coordinate projection and single-dimension coordinate conversion are achieved through a method for making plane and straight line related to the spatial angle small hole axis in a rectangular coordinate system, and the method calculates included angles or distances between planes or between a line and a plane or between lines; the calculation method is simple, and only rotation of a working turntable and translation in X and Y directions need to be matched in actual operation; complex calculation processes and machining processes are avoided; machining quality stability is obviously improved,and machining time is effectively shortened; and machining efficiency of the spatial angle small hole of the aviation component is improved.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to a method for processing a small hole in a space angle of an aero-part. Background technique [0002] In the field of aero-engines, many parts have small holes with various spatial angles in various positions, which are used for exhaust, cooling, and mixing, and the number is large, and the angle and size of such holes are complex and the positions are special. In order to ensure the processing quality, To ensure that the size of the empty position is qualified, there are two traditional processing methods: 1. Using ordinary EDM, this method has the following problems: a. It is necessary to use a special fixture to ensure its position accuracy requirements, but the manufacturing accuracy of the fixture requires High, the operation steps are cumbersome, it is difficult to meet the processing requirements, and the fixture needs to be sent for inspection regularly, which increas...

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Application Information

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IPC IPC(8): B23H9/14B23H1/00
CPCB23H1/00B23H9/14
Inventor 赵丹丹柏慧王志富曾雪晴吴建郭坤
Owner CHINA HANGFA SOUTH IND CO LTD
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