Numerical control machining method capable of guaranteeing machining command information to be correct

Abstract

A numerical control machining method capable of guaranteeing machining command information to be correct is based on a Siemens 810 D and 820 D numerical control system. The numerical control machining method capable of guaranteeing the machining command information to be correct is characterized in that a restriction link which allows the reasonable range of a cutter compensation value to be input is additionally set in the numerical control machining program of cutter compensation. The technique required in the method does not need additional investment. When the mistake proofing technique is adopted in numerical control machining, hidden quality problems caused by the fact that operators manually input radius compensation and length compensation values are avoided. Not only are economic losses caused by scrapped products or very poor products avoided, but also the production process can go on smoothly. Indirect losses caused by handling the very poor products are further avoided. The numerical control machining method has enormous foreseeable economic value and social value.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, and in particular provides a numerical control machining method for ensuring correct machining instruction information. Background technique [0002] In CNC machining, especially in the CNC machining of complex and thin-walled parts on some aero-engines, in order to ensure dimensional accuracy and reduce the influence of deformation on the machining process of parts, part of the size of the parts is often processed by tool compensation. In the finishing stage of the process, the operator adjusts the tool radius or length compensation value to ensure the size of the part according to the rough machining measurement results. This programming method enables the rough machining and finishing machining of the same size of the part to only need to compile one program. The processing is relatively flexible. For the parts in the development stage, this flexible processing method can impr...

AI Technical Summary

Problems solved by technology

[0003] The use of tool radius or length compensation programming brings benefits to the processing of parts, but it also brings a serious problem to the enterprise: the quality is easy to lose control

In the NC machining process of parts, the operator manually enters data and intervenes in the NC machining process, which is likely to cause the problem of inputting wrong tool compensation values. According to statistics, in a medium-sized NC machining enterprise, every year There are at least 7 or 8 quality accidents caused by wrong tool compensation radius value and tool length value. Although the number is not many, in aviation manufacturing enterprises, due to the high value of parts, the economic loss caused is also very large, which has accumulated over the years. The damage caused is staggering

While causing great losses, it also affects the smooth progress of production and disrupts the normal production rhythm of the factory, especially for some single-piece production parts, the scrapping of parts will bring greater consequences