高精度深长孔的加工方法研究  

The Research of Machining Method on High-precision and Long Hole

作　　者：蓝仁义[1] 

机构地区：[1]广西玉柴机器股份有限公司,广西玉林537005

出　　处：《装备制造技术》2012年第7期185-187,共3页Equipment Manufacturing Technology

摘　　要：以加工发动机气缸体挺柱孔为例,阐述了在机械加工领域中工艺性差且精度高的孔的加工方法。着重介绍了一种本身具有自导向的扩铰挤刀,以预铰刀段作为前导向,并以后导向柱作为后导向;预铰刀段在起到定心导向作用的同时,还扩孔去除加工余量;后导向段起到就近导向作用的同时,还能对被加工表面起到滚压的作用。这种方法能加工出精度高、粗糙度高的深长孔,同时效率高、成本低,可推广应用到机械加工领域的孔类加工。By processing engine cylinder block＇s column hole as an example, presents in detail in the field of mechanical processing technology of high accuracy and poor hole processing method. Introduced a kind of tool, itself has since expanded press and reamer, it in advance as a guide for reamer before and after the guide posts as guidance, the reamer section in the function of the guidance of centering and reaming removal machining allowance, guide period after a came near to the guiding role of in the meantime also can be processed surface has the role of rolling. This method can work out of high precision, good roughness deep hole, at the same time, high efficiency, low cost, can be applied to the mechanical processing field of hole processing.

关 键 词：孔类加工 扩铰挤刀 自身导向 滚压 

分 类 号：TG713.4[金属学及工艺—刀具与模具]