振动压路机上的制动瓦（见图１）是一个典型的非对称薄壁弧形零件，该零件的形状决定了它有较多的空间尺寸，因而零件加工过程中的划线以及在通用机床上加工时的装夹均比较困难，使其设计精度难以保证。如何使这类弧形零件在批量生产中达到较高的加工效率及稳定的质量，是企业 The brake shoe (see Figure 1) on a vibratory roller is a typical asymmetrical thin-walled arcuate part whose shape determines it has more space so the scribing of the part during the machining process, On the processing of the clamping are more difficult to design accuracy is difficult to guarantee. How to make such arc parts in the mass production to achieve higher processing efficiency and stable quality, is the enterprise