Digital control machining operation error prevention technology

Abstract

The invention aims at providing an NC-operation error preventing technology. A standard calibration block is arranged on the worktable of an NC machine tool, an operating check procedure for checking block feed before a workpiece processing procedure is increased, so that automatic detecting can be realized for tools and coordinate system setting through simple system macro procedure calling, thereby avoiding economic loss caused by misoperation in the NC process. The development of error-checking subroutine is mainly based on application system parameters, system variables and counting and logic computing, breaking away specific processing parts, thereby having generality for all parts on a specific machine. Error-checking subroutines are stayed in the system of the CNC machine tool, thereby just simply calling is needed for processing any parts.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to the technology for preventing operation errors in numerical control machining. Background technique [0002] As we all know, CNC machining is to use the digital control system to complete the machining of the entire part on the machine tool. The whole process of machining, including tool movement, tool change, speed change, direction change, and parking, is automatically completed. It is a computer program. The accuracy, precision and processing efficiency of modern processing methods are unmatched by traditional mechanical processing. [0003] With the development of NC machining technology and the technological progress of NC process programming, the proportion of errors caused by NC process programming has been greatly reduced; at the same time, the quality loss caused by NC operation errors has gradually become the main contradiction. Especially at presen...

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Problems solved by technology

[0003] With the development of NC machining technology and the technological progress of NC process programming, the proportion of errors caused by NC process programming has been greatly reduced; at the same time, the quality loss caused by NC operation errors has gradually become the main contradiction

Especially at present, aviation products are gradually becoming more complicated and integrated, and the processing equipment is becoming more and more high-speed, so the losses caused by operating errors are very huge.

Every year in the CNC industry, a large number of parts are out of tolerance and scrapped due to wrong tool setting, wrong coordinate system setting, wrong tool length setting, and wrong use of tools, which not only delays the delivery of parts, but also causes huge economic losses to the enterprise

[0004] At present, in the field of NC machining, there is still a lack of effective means to prevent or reduce NC operation errors. Preventing NC operation errors mainly depends on the operator's sense of responsibility and technical level. Through repeated inspections to reduce errors, human factors have a great influence

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