Method for realizing retroact movement control in numerically controlled machine system

A technology of motion control and CNC machine tools, applied in the direction of digital control, electrical program control, etc., can solve the problems of uneconomical re-cutting, vulnerable nozzles, etc., and achieve the effect of simple and convenient realization process, wide application range, fast and efficient operation process

Active Publication Date: 2008-05-14
SHANGHAI WEIHONG ELECTRONICS TECH +1
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Problems solved by technology

If the current NC command (such as G code command) corresponds to a long track, and only the second half of the command is not cut through, then if the machine tool is stopped and the breakpoint resume function is used for re-cutting, it is necessary to start from Re-cutting starts at the starting point of the current trajectory. Since the nozzles used by waterjet machine tool

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  • Method for realizing retroact movement control in numerically controlled machine system
  • Method for realizing retroact movement control in numerically controlled machine system
  • Method for realizing retroact movement control in numerically controlled machine system

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[0056]In order to be able to understand the technical content of the present invention more clearly, the following embodiments are specifically described in detail.

[0057] First, explain several terms in the technical field of CNC machine tools:

[0058] Breakpoint continue-a function of the CNC control software, execute this function, the system will continue to execute from the last processing interruption.

[0059] Numerical control motion pulse command-the motion command pulse information sent by the numerical control control software to the motion control card, including axis information, the number of single-axis pulses and the direction of motion, where the direction of motion is represented by a sign. In the method of the present invention, it is required Its occupied memory size remains unchanged.

[0060] Machining magnification-the ratio of the current processing speed to the normal processing speed is called the processing magnification.

[0061] Handwheel-the abbrev...

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Abstract

The invention relates to a method of realizing retroactive motion control in an NC machine tool system, which includes normal motion control processing operation, retroactive motion control processing operation and forward motion control processing operation. In the normal motion control processing operation, the motion command is stored at the historical motion record buffer area; in the retroactive motion control processing operation, the system reads reversely the motion command in the historical motion record buffer area; in the forward motion control processing operation, the system reads forward the motion command in the historical motion record buffer area. By adopting the method of realizing retroactive motion control in the NC machine tool system, the invention realizes accurate retroactive motion control, with simple and convenient process, rapid and efficient operation process, and accurate and reliable actual running, thus the invention can meet the requirement of accurate retroactive motion control, and can be used for high-pressure water jet cutting and other NC industries with wide application scope, laying a solid foundation for the further development of motion control technology of the NC machine tool system.

Description

technical field [0001] The invention relates to the field of numerically controlled machine tool systems, in particular to the technical field of motion control of numerically controlled machine tool systems, and specifically refers to a method for realizing backward motion control in a numerically controlled machine tool system. Background technique [0002] Manufacturing is the basic industry of the national economy, and the level of manufacturing is an important indicator of a country's industrial development. The quality level of CNC machine tools is related to the level of the national manufacturing industry. [0003] In the prior art, CNC machine tool systems are often used to perform corresponding cutting or welding operations. When using the CNC machine tool system to carry out high-pressure water jet cutting machine operations, sometimes due to the thickness of the material to be cut is partially too thick, or the preset processing speed is too high, etc., it may b...

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Application Information

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IPC IPC(8): G05B19/18
Inventor 刘永生汪永生郑之开汤同奎
Owner SHANGHAI WEIHONG ELECTRONICS TECH
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