In the paper, the math model of the fitting machining benchmark curve of stone slice has been given, which used on the handrail of eddied ladder,and circular helix has been used to be a fitting curve.

• 本文给出了旋转扶梯石材贴片的加工基准曲线拟合的数学模型,以空间螺旋线作为拟合曲线,为石材数控线切割机提供了理论基础,解决了石材加工行业中的实际问题。