Method for realizing retroact movement control in numerically controlled machine system

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...

AI Technical Summary

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 tools are fragile and expensive parts, this method of re-cutting is not economical

[0004] In addition, sometimes the operator of the CNC machine tool system does not know exactly from which CNC command the problem occurs, and the use of breakpoint continuation cannot accurately determine which command should start from which the breakpoint processing should be performed at one time.

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