等速螺线的数字积分插补算法研究与软件实现

Study of Digital Integration Interpolating Algorithm and Software Realization Based on Uniform Speed Spiral

通过分析等速螺线的形成机理，建立了相应的数字积分ＤＤＡ插补算法。插补过程表现为先对假定的虚拟圆弧进行插补，以此为依据再自动进入等速螺线插补。并采用ＢｏｒｌａｎｄＣ＋＋语言编写了插补软件，模拟结果表明该算法既简捷又可靠，易于移植到现代ＣＮＣ数控装置中。

After analysing uniform speed spiral forming mechanism,This paper builds a proper digital integration interpolating algorithm.The interpolating process shows, at first,the virtual arc is interpolated,then based on that,uniform speed spiral is interplated automatically.Also,the interpolating software is programmed in Borland C ++ language,the simulating results indicate that algorithm is both forthright and reliable,can be easily transplanted to modern CNC unit.