一种新型结构拉刀设计  

The Design of A New Structure Broach

作　　者：刘亚军 杨帆 张军锋 LIU Ya-jun;YANG Fan;ZHANG Jun-feng(Xianyang Precision Machinery Rranch Company Shaanxi Fast Group,Xianyang 712000,China;Shaanxi Fast Automobile Transmmissom Group Co.,Ltd.,Xi'an 710077,China)

机构地区：[1]陕西法士特汽车传动集团咸阳精密机械分公司,咸阳712000 [2]陕西法士特汽车传动集团有限责任公司工艺研究所,西安710077

出　　处：《内燃机与配件》2021年第18期57-58,共2页Internal Combustion Engine & Parts

摘　　要：本文介绍了一种新型结构拉刀的设计,此拉刀适用于直通内花键非薄壁零件,由于传统拉削带圆切齿,内花键小径为后续加工定位基准。因为传统拉刀拉削小径,使用传统结构的拉刀会导致零件拉削后,端面跳动以及外圆径向跳动不稳定,拉削后还需要精车加工,增加了加工成本,为此,我们设计了一种新型结构拉刀,此结构拉刀不拉削小径,因此拉刀拉削后,零件端跳径跳不变,这样就无需在拉削之后再增加两道精车工序,降低拉削成本。This paper introduces the design of a new structure broach,which is suitable for all non-thin-walled parts with straight inner spline.Because of the traditional broaching with circular cutting,the inner spline path is the positioning benchmark for the subsequent processing.Because the traditional broach broaching path,the use of traditional structure broach will lead to the parts after broaching,end face runout and the radial runout of the outer circle is not stable,after broaching is completed also need to finish turning processing.Greatly increased the processing cost,For this reason,we have designed a new structure broaching broach,this structure broaching broaching does not broach the path,so after the broaching is completed,the end jump diameter jump almost unchanged,so that there is no need to broaching after the completion of the two finishing processes,reduce broaching costs.

关 键 词：拉削 工艺 拉刀 

分 类 号：TG715[金属学及工艺—刀具与模具]