Pull the sword complex structure, data is various, common design method has repeated labor, low degree of long life cycle, the standard shortcomings, such as, so use CAD design broach to have the important meaning. This paper is mainly to pull the sword with CAD design, improve broach quality. First of all, the sword of materials and type and their choice model, and then choose the groove shape and let crumbs types, to let the flocks coefficient K make calculation, then the broach related data and parameters calculation. To broach the selection of geometric parameters to ensure that when the machined surface reaches the precision and surface quality, pull the sword high durability and life and pull the sword of high productivity. Again to broach points flocks slot design. The last is to pull the sword check module and work gear check and pull the sword of the tension strength and lachuang, check the check output results.
（有道的）