Tool path generation for a four-axis machine to engrave letters on tire sidewall molds

被引:3
|
作者
Lee, Cheol-Soo [1 ]
机构
[1] Sogang Univ, Mech Engn SIAT, Seoul 121742, South Korea
关键词
Tire sidewall; Lettering; Engraving; Bending projection; Four-axis machining; Generation of CL data; PC-NC; POSTPROCESSOR; SYSTEM;
D O I
10.1007/s12541-009-0050-z
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A tire sidewall is that section of the tire that bridges the tread and the bead. It is difficult to manufacture tire sidewall molds with a three-axis CNC machine, because the letters on the sidewall should be engraved perpendicularly to the sidewall surface. In this paper, a four-axis lettering machine that efficiently engraves letters and patterns on the sidewall mold is proposed. A bending projection algorithm is introduced to project letters on the sidewall surface without distortion. The procedures to cut letters and patterns using the four-axis lettering machine is proposed: (1) measuring the profile curve using a mechanical probe, (2) using a bending projection algorithm to project letters onto the sidewall surface without distortion, (3) generating the four-axis CL data, and (4) calculating the inverse kinematics to generate NC codes. The procedure is implemented using a PC-NC (Personal Computer Numerical Control) system, which has an open architecture based on the personal computer. The results demonstrate that the method is useful for manufacturing tire sidewall molds.
引用
收藏
页码:75 / 82
页数:8
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