Method for turning-angle-C over-travel optimization and processing during post-processing

A post-processing, cornering technology, applied in program control, instrument, computer control, etc., can solve the problems of long cycle, unable to meet the requirements of enterprise production schedule, low efficiency of numerical control programming, etc., to achieve the effect of improving the efficiency of programming

Active Publication Date: 2016-06-29
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the programmer needs to modify the processing program repeatedly to meet the requirements of the post processor, resulting in low efficiency and long cycle of NC programming, which cannot meet the production schedule requirements of the enterprise

Method used

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  • Method for turning-angle-C over-travel optimization and processing during post-processing
  • Method for turning-angle-C over-travel optimization and processing during post-processing
  • Method for turning-angle-C over-travel optimization and processing during post-processing

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Embodiment 1

[0031] A method for optimizing and processing C corner overtravel in post-processing in this embodiment, such as figure 1 As shown, it is mainly realized through the following technical scheme: a method for optimizing and processing C corner overtravel in post-processing, comprising the following steps:

[0032] Step S100: Segment the CNC tool path file, and process each segmented tool path file as a trajectory unit separately;

[0033] Step S200: generating a plurality of C-axis data sets corresponding to the track unit for a single track unit, and selecting a C-axis data set as the preferred C-axis data set based on the C-axis stroke range of the machine tool for output;

[0034] Step S300: Analyze the output preferred C-axis data set, if there is no overtravel C value in the preferred C-axis data set, then directly jump to step S400, if there is an overtravel C value in the preferred C-axis data set, then perform an analysis of all overtravel C values Step S400 is skipped ...

Embodiment 2

[0039] This embodiment is further optimized on the basis of the above embodiments, a method for optimizing and processing C corner overtravel during post-processing, which is characterized in that it includes the following steps:

[0040] Step S100: Segment the NC tool path file by taking the corresponding point when the tool axis vector in the NC code of the tool path file is [0, 0, 1] and the feed rate is RAPID as a breakpoint, and the breakpoint between the two breakpoints is The tool path file between is the trajectory unit and the breakpoint is the starting point of the trajectory unit, and each trajectory unit is processed separately;

[0041] Step S200: Generate a plurality of C-axis data groups corresponding to this trajectory unit for a single trajectory unit, and select a C-axis data group as the preferred C-axis data group based on the C-axis travel range of the machine tool for output, specifically including the following steps :

[0042] Step S210: directly calcu...

Embodiment 3

[0057] A method for optimizing and dealing with C corner overtravel in post-processing. First, segment the CNC tool path file, and process each segment of the tool path file as a separate trajectory unit, and then use the C-axis stroke range Based on the analysis of each trajectory unit in turn, optimize the C-axis data group corresponding to this trajectory unit according to the analysis results and select an optimal C-axis data group for output, and finally perform overtravel processing on all overtravel points to meet the requirements of the machine tool. travel requirements. Wherein, both the direct C-axis data set and the transformed C-axis data set are used as alternative C-axis data sets.

[0058] When segmenting the NC tool path file, the breakpoint that satisfies the conditions of "the tool axis vector is equal to [0, 0, 1]" and "the feed rate is RAPID" is taken as the starting point of a trajectory unit.

[0059] When optimizing the C-axis data group corresponding t...

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Abstract

The invention discloses a method for turning-angle-C over-travel optimization and processing during post-processing. The method includes the following steps that step S100, a numerical control tool path file is subjected to segmentation and individual treatment; step S200, an angle C value is optimized for a single track unit, and a preferred axis-C data set is selected for output; step S300, the output preferred axis-C data set is analyzed, over-travel processing is conducted on all over-travel points, and then the step S400 is executed; step S400, the over-travel processing conducted on the track unit is completed, analysis and processing of a next track unit are executed, analysis and processing of all track units are completed in sequence, and the step S500 is executed; step S500, the over-travel processing conducted on a turning angle C of a wheel is completed. The method is based on an axis-C travel range, utilizes a turning-angle-C travel of a machine tool to the most degree, avoids repeated modification of numerical control machining programs and can remarkably improve the compiling efficiency of the numerical control machining programs especially for a numerical control machine tool with a smaller axis-C travel.

Description

technical field [0001] The invention relates to the technical field of post-processing of multi-axis numerical control machine tools, in particular to a method for optimizing and processing C corner overtravel during post-processing. Background technique [0002] With the continuous advancement of CNC machining technology, the complexity of structural parts and the continuous improvement of machining accuracy, it is the general trend for enterprises to choose multi-axis linkage CNC machining equipment. The machine tool with AC (BC) swing angle structure has been widely used in China in recent years because of its strong applicability, wide processing range and strong compound processing ability. At present, the corresponding post-processor does not have intelligent optimization and over-travel processing functions in the processing of C corners. Therefore, the C corner overtravel often occurs during post-processing, especially on machine tools with a small C corner stroke. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/408
CPCG05B19/4086G05B2219/36252
Inventor 尚江牟文平龚清洪彭雨阮超罗耀辉
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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