Surface dynamic compensation carving path generation method

Abstract

The present invention discloses a complex surface numerical control milling carving processing automation intelligent compensation programming method in machine manufacturing. The method comprises thesteps of: 1) construction and initialization of a measurement compensation processing initial programming system; 2) establishment of a dynamic programming coordinate system; 3) surface measurement,and construction of a real carving surface; 4) according to the dynamic programming coordinate system, transformation of coordinates of a theoretical surface carving program, and calculation of coordinates of processing tool track element points; and 5) program transformation, and obtaining of an actually processing NC program. According to the numerical control milling carving processing automation intelligent compensation programming, a measurement head dynamically measures and constructs the processing coordinate system and performs program compensation transformation for the shape and thelocation condition of each part to rapidly perform compensation carving processing so as to improve the surface carving processing precision and programming efficiency of the numerical control program.

Description

technical field [0001] The invention relates to an automatic intelligent compensation programming method for CNC milling and engraving processing of complex curved surfaces in mechanical manufacturing, in particular to an intelligent and automatic programming method for precision engraving and CNC milling processing. The method belongs to the technical field of numerical control processing technology and programming subject in mechanical manufacturing. Background technique [0002] NC machining has been widely used in modern manufacturing due to its high efficiency and high precision. When parts are NC machining, the geometric model must be established first, and then the NC machining program should be compiled. The efficiency and quality of NC programming determine the production of the product. efficiency and quality. [0003] Curved surface shapes widely exist in the structure of CNC machining parts, especially some handicraft parts need to be engraved on the surface of ...

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Problems solved by technology

[0003] Curved surface shapes widely exist in the structure of CNC machining parts, especially some handicraft parts need to be engraved on the surface of the formed curved surface. Due to the positioning error of the part, the deformation of the curved surface and the manufacturing error of the curved surface shape, the depth of the engraving deviates. As a result, the engraving quality of the curved surface of the part is poor, which cannot meet the processing requirements of the product. It is necessary to study the processing method of the curved surface engraved part, and further study the generation method of the CNC program tool trajectory suitable for the curved surface part engraving.

[0004] The positioning of curved surface parts is difficult, the shape of the part itself is complex, the dimensional tolerance is small, and the influence of part deformation, resulting in the NC machining program that has been compiled on the theoretical mathematical model cannot be used, even if individual positions can be processed. The overall size and precision cannot meet the requirements of use; the state of each part is different, so the processing program needs to be adjusted for each part, otherwise the processing quality is unqualified

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