中文摘要：

针对鞋楦外形轮廓不能由初等解析曲面构成，需要有效快速提取鞋楦曲面数据信息，提出了一种基于CATIA二次开发的鞋楦表面信息提取方法。对鞋楦表面形状及工艺要求进行了分析，并根据形封闭原理和定位夹紧原则提出鞋楦零件的定位夹紧方案，最后，运用雅可比矩阵进行夹紧计算。研究结果验证了所提的定位夹紧方案的可行性。

英文摘要：

Aiming at shoe last unavailable to use the alphabetic analytic curve surface to describe the contour and extracting information about curve surface effectively, an effective method based on secondary exploitation of CATIA for extracting information from shoe last surface was presented. By analyzing the surface configuration of shoe last and process requirements, the fixture arrangement of shoe last components was proposed based on closed principle and positioning - clamping principle. The arrangement result was tested by applying Jacobian matrix. The result shows that the fixture arrangement scheme is satisfactory with the related process requirements.