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Abstract: Linear interpolation is used widely in multi-axis NC
machine. A computational model is presented for cutting edge width error
in machining rotary cutting tool with zero cutting edge. It gives an
attention to analysis on accuracy of cutting edge width, which is formed
by two geometrical bodies—— the outer circle and taper surface of
grinding wheel. An improving accuracy method is also proposed. On the
other hand, a CL calculating principle of across node is firstly
provided. It is simple and reliable. According to this principle, the
surface accuracy of workpiece may be improved.
Key words: Cutting edge Linear interpolation Node NC grinding
machine tool
CLC No: TG659
国家科技型中小企业创新基金资助项目(01C26216100735).
Received 20020614, received in revised form 20021110
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