Impeller machining cutter-axis vector control method based on five-axis interference-free cutter axis control line

A tool axis vector and control method technology, applied in metal processing, manufacturing tools, automatic control devices, etc., can solve the problems of poor impeller quality, achieve uniform and slow rotation, simple method, and avoid global interference

Active Publication Date: 2013-12-11
西安三航动力科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the poor quality of the impeller processed by the existing vector control method of the impeller machining tool

Method used

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  • Impeller machining cutter-axis vector control method based on five-axis interference-free cutter axis control line
  • Impeller machining cutter-axis vector control method based on five-axis interference-free cutter axis control line
  • Impeller machining cutter-axis vector control method based on five-axis interference-free cutter axis control line

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Embodiment Construction

[0027] refer to Figure 1-6 . The specific steps of the impeller machining tool axis vector control method based on the five-axis non-interfering tool axis control line of the present invention are as follows:

[0028] Taking the semi-finishing of the blade back profile of an aeroengine impeller as an example, without loss of generality, the specific implementation steps of the present invention are described.

[0029] Generate tool axis selection boundaries. The blade back profile and the blade basin on the opposite side of the passage are offset by 4.8mm to the passage side, and the inner hub is offset by 4.4mm to the passage side. The semi-finishing is processed by a ball nose cutter with a radius of 4mm, the finishing allowance of the blade surface (blade pot surface, blade back) is 0.8mm, and the finishing allowance of the inner hub is 0.4mm.

[0030] Determine the projected surface where the tool axis control line is located. Offset the outer hub face outward by 52.6...

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Abstract

The invention discloses an impeller machining cutter-axis vector control method based on a five-axis interference-free cutter axis control line. The method is used for solving the technical problem that a machined impeller machined through an existing impeller machining cutter-axis vector control method is poor in quality. According to the technical scheme, the method comprises the steps that a cutter axis selection border is generated, a curve projection surface where the cutter axis control line is located is determined, the offset surface of an impeller to be machined is expanded along the tangential direction of an air inlet edge and the tangential direction of an air exhaust edge, and an five-axis interference-free cutter axis control line is constructed to determine the cutter axis vector of any cutter location point. Because the angle between the cutter axis and the rotating shaft of the impeller is singly and evenly changed from the air inlet edge to the air exhaust edge, minimal swinging changes of the cutter axis surrounding the rotating shaft are achieved, minimal angle changes of the cutter axis surrounding the rotating shaft of the impeller are achieved, and two rotating shafts of a machine tool evenly and slowly rotate in the five-axis machining process; the whole blade-type surface multi-axis machining can be achieved through the cutter axis control line, the interference-free cutter axis vector determination of the whole impeller curved blade surface is achieved, and the method is simple; meanwhile, overall interference of the cutter axis is avoided, and the quality of the machined impeller is improved.

Description

technical field [0001] The invention relates to a vector control method of a tool axis for impeller machining, in particular to a vector control method of a tool axis for impeller machining based on a five-axis non-interference tool axis control line. Background technique [0002] Modern defense, energy and other civilian fields are increasingly using impeller parts, typical examples such as aero-engine impellers, etc. The realization of high-efficiency and precise CNC machining technology for such parts has become one of the important manifestations of the core competitiveness of advanced manufacturing companies. one. [0003] With the improvement of the design method and the development of the CNC system, using the advanced five-axis CNC machine tool, the swing of the tool axis at any position in the three-dimensional space can be realized within the working stroke of the machine tool. By selecting the tool axis reasonably, it can meet the needs of most multi-axis machini...

Claims

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Application Information

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IPC IPC(8): B23Q15/12
Inventor 任军学李祥宇田荣鑫姚倡锋林谦李珊珊曾婧雯祝起凡杨俊
Owner 西安三航动力科技有限公司
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