Sinusoidal cylindrical surface ultraprecise turning helical cutter path generating method

Abstract

The invention relates to a sinusoidal cylindrical surface ultraprecise turning helical cutter path generating method, and belongs to the technical field of mechanical numerical control processing. AnZ axis is subjected to scale division; a sinusoidal cylindrical surface generatrix equation is obtained through derivation or the existing sinusoidal cylindrical surface generatrix equation is used; the sinusoidal cylindrical surface is subjected to radial part number division, so that the sinusoidal cylindrical surface generatrix is subjected to part number division around the axial line in the radial direction and rotates for a circle for obtaining the sinusoidal cylindrical surface; the sinusoidal cylindrical surface is subjected to screw pitch scale division in the radial direction; meanwhile, the screw pitch is subjected to cutter contact point track scale division; a helical cutter contact point cutter path is generated on the sinusoidal cylindrical surface according to the derived cuter contact path generation expression; the cutter radius r and a cutter radius compensating expression are selected; the helical cutter contact point cutter path is subjected to radius compensationto obtain the cutter location point coordinate value; the cutter location point coordinate value is converted into actual numerical control processing NC code. The method has the advantages that the processing efficiency of the sinusoidal cylindrical surface is favorably improved; the processing precision of the sinusoidal cylindrical surface is effectively improved.

Description

technical field [0001] The invention relates to the technical field of mechanical numerical control machining, in particular to a method for generating a spiral tool track for sinusoidal cylindrical turning. Background technique [0002] According to the unique structural characteristics of cylindrical microstructure parts, it is widely used in optoelectronics, communication, medical, military and other fields. Because of its unique structure, it can be used to realize specific optical functions, improve system performance, and simplify system structure. It is mainly used for In a relatively sophisticated device, functional effects that cannot be achieved by traditional processing methods are realized. At present, various methods have been used at home and abroad to process complex microstructures on cylindrical surfaces, such as laser processing technology, LIGA technology, micro-grinding technology, photoetching technology, etc., but the features processed by the above pro...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for generating a spiral tool trajectory for ultra-precision turning of a sinusoidal cylindrical surface, to solve the problem that the existing processing methods cannot meet the characteristics of complex cylindrical surfaces, help to improve the processing efficiency of similar cylindrical surfaces, and effectively improve the processing efficiency of similar cylindrical surfaces. machining accuracy

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