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Method for processing spiral line interpolation of three-dimensional cutting edge contour

A processing method and helical line technology, which are applied in the field of three-dimensional contour processing, can solve the problems of inability to dynamically track the cutting edge, low processing efficiency, and inability to achieve high-efficiency automatic numerical control processing of the cutting edge.

Inactive Publication Date: 2009-11-25
蔡玉俊 +3
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Problems solved by technology

Since the linear arc interpolation of the existing CAM software is two-dimensional, it cannot dynamically track the three-dimensional shape of the cutting edge, so it is necessary to manually adjust the Z-direction height from the beginning to the end, the processing efficiency is low, the operator’s labor intensity is high, and the cutting edge cannot be realized Efficient automatic CNC machining

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  • Method for processing spiral line interpolation of three-dimensional cutting edge contour
  • Method for processing spiral line interpolation of three-dimensional cutting edge contour

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Embodiment Construction

[0009] Such as figure 1 As shown: the edge profile is generally processed by the side edge of the tool, so the three-dimensional edge program requires high radial accuracy and low axial accuracy. Using this feature, when calculating the three-dimensional contour program, perform linear circular interpolation for radial dimensions with high precision (such as an error of 0.01mm), and perform linear interpolation for axial dimensions with low precision (such as an error of 1mm). , after the combination of the two, the helical interpolation of the three-dimensional contour is completed. Compared with the two-dimensional contour of linear arc interpolation, the straight line part of the two-dimensional program becomes one or more three-dimensional straight lines, and the arc part of the two-dimensional program becomes one or more helical lines with different helix angles, while the two The projections of the two on the axis are completely coincident. In addition, when performing...

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Abstract

The invention relates to a method for processing a spiral line interpolation of a three-dimensional cutting edge contour, comprising the following steps: (1) inputting a geometric solid and setting processing parameters; (2) calculating X and Y coordinates and carrying out a high-precision linear arc interpolation; calculating an axial Z coordinate and carrying out a low-precision linear interpolation; (3) checking whether the Z coordinate corresponding to the X and Y coordinates can be satisfied with conditions of the height of the cutting edge, the length of the cutting edge and the collet noninterference or not, and adjusting the Z coordinate to a reasonable value if the Z coordinate is not satisfied with the conditions; (4) combining the adjusted Z coordinate with the corresponding linear arc interpolation X and Y coordinates to generate a spiral line interpolation tool path. The invention has the advantage of dynamically tracking the three-dimensional shape of the cutting edge and both realizing the three-dimensional automatic numerical control process for the contour of the cutting edge and efficient automatic numerical control process for the cutting edge.

Description

Technical field: [0001] The invention relates to a CAM processing method for cutting edge contour, in particular to a three-dimensional contour processing method using helical interpolation. Background technique: [0002] The trimming edge and flanging edge are the key parts of stamping die forming parts. Due to the high requirements on dimensional accuracy and smoothness, people generally use two-dimensional contour programs with linear and arc interpolation for processing on CNC machine tools. Since the linear and arc interpolation of the existing CAM software is two-dimensional, it cannot dynamically track the three-dimensional shape of the cutting edge, so it is necessary to manually adjust the Z-direction height from the beginning to the end. Efficient automatic CNC machining. Invention content: [0003] The purpose of the present invention is to overcome the deficiencies in the above-mentioned prior art, and provide a helical line interpolation processing method of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/4103
Inventor 蔡玉俊吴志静阎兵戚厚军
Owner 蔡玉俊
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