Complex surface numerical control machining motion analyzing method based on mapping

Abstract

The invention relates to a complex surface numerical control machining motion analyzing method based on mapping and belongs to the technical field of numerical control machining. The method is characterized in that common complex surface machining is regarded as the combination of micro tapered planes, optional tapered plane machining is machined in a way that a cutter shaft is vertical, a cutter is in translational motion, and a workpiece performs angle swinging, and two basic independent variables including the tapered surface inclination angle and the feeding direction angle are abstracted to complete the parametric expression of common complex surface machining; the tapered surface inclination angle and the feeding direction angle are used as coordinate axes to build abstract plane space, and coordinate transformation is performed on common complex surface machining to build the mapping relation between complex surface machining and the abstract plane space; the relative motion relation of the cutter and the workpiece in common complex surface numerical control machining can be conveniently and systematically analyzed based on the mapping relation. Compared with a traditional differential method, the method has the advantages that the defects that the differential method is passively executed along curve surface shape change and large in computing resource consumption are overcome, and the method is convenient for software integration and actual application and high in engineering value.

Description

technical field [0001] The invention belongs to the technical field of numerical control machining, relates to the motion analysis of curved surface processing, in particular to a mapping-based numerical control processing motion analysis method for complex curved surfaces. Background technique [0002] With the development of social economy and the progress of science and technology, complex curved surface parts are more and more widely used in aerospace, energy power, automobile, mold and other industrial fields. The processing of complex curved surface parts is a difficult problem in mechanical processing, and it is also the main research and application object of numerical control technology and CAM technology. The analysis of the relative motion relationship between tool and workpiece in NC machining is the primary content of cutting dynamics research. Compared with simple flat surface machining, the difficulties in motion analysis of complex curved surface NC machinin...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of high consumption of computing resources and the inability to perform forward-looking analysis when analyzing the motion relationship of complex curved surface NC machining by applying differential methods. The present invention proposes a mapping-based NC machining motion analysis of complex curved surfaces method

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