Elliptical vibration trajectory control method based on microtexture model

A technology of elliptical vibration and trajectory control, applied in the direction of digital control, program control, electrical program control, etc., can solve the problems of cutting microtexture generation and control, etc.

Active Publication Date: 2016-12-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a method for controlling the elliptical vibration tra

Method used

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  • Elliptical vibration trajectory control method based on microtexture model
  • Elliptical vibration trajectory control method based on microtexture model
  • Elliptical vibration trajectory control method based on microtexture model

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Embodiment Construction

[0042] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0043] The modeling method of the elliptical vibration cutting track based on the micro-texture model of the present invention solves the problem of generating micro-textures of arbitrary shapes through the control of the elliptical vibration track. The specific process is as follows:

[0044] (1) According to the given micro-texture design parameters, the micro-texture surface equation is constructed, and the micro-texture processing parameters, tool parameters and the radius of the cylinder reference surface are selected.

[0045] Such as figure 1 As shown, the vibration cutting of the tool in the elliptical vibration-assisted cutting device produces continuous overlapping elliptical cutting tracks on the surface of the workpiece. Such as figure 2 As shown, select a point on the surface of the workpiece as the coordinate origin o, pass ...

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Abstract

The invention discloses an elliptical vibration trajectory control method based on a microtexture model, and belongs to the numerical control machining field. The method comprises the steps that a microtexture surface equation is constructed according to microtexture design parameters, and microtexture machining parameters, cutter parameters and a cylinder datum plane radius are determined; the microtexture model is dispersed in the axial direction and the circumferential direction of the cylinder surface on the basis of the microtexture machining parameters and the resonant frequency of an elliptical vibration device, and position vectors of all dispersion points are obtained; the vibration amplitude of an elliptical vibration cutting trajectory at each dispersion point is determined according to the position vector of the dispersion point, and elliptical vibration cutting trajectories of all the dispersion points are obtained; the elliptical vibration cutting trajectories of all the dispersion points are corrected according to an elliptical vibration cutting trajectory error and used for microtexture cutting machining. The elliptical vibration trajectories are effectively controlled according to the elliptical vibration cutting surface topography forming mechanism through the control method, then controllability of micro-nano texture generation is guaranteed, and the generation problem of random-shaped microtextures is solved.

Description

technical field [0001] The invention relates to a method for controlling an elliptical vibration track, in particular to a method for controlling an elliptical vibration track based on a micro-texture model, and belongs to the field of numerical control processing. Background technique [0002] With the rapid development of precision and ultra-precision processing technology, micro-nano textured surfaces with self-cleaning, anti-fouling effects, drag reduction, and optical performance enhancement functions have been widely used in various fields. Mechanical cutting has been widely used in the processing of micro-nano textured surfaces due to its good shape adaptability, high processing efficiency, wide application of processing materials, and low processing cost. Combined with the advantages of elliptical vibration-assisted cutting to reduce cutting force, improve processing quality, suppress workpiece burrs, and increase tool life, it has obvious advantages in surface manuf...

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Application Information

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IPC IPC(8): G05B19/19
CPCG05B19/19G05B2219/35349
Inventor 张臣
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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