微型细长轴类零件的车削加工工艺实践探索  

Practical Exploration of Turning Machining Process for Miniature Slender Shaft Parts

作　　者：肖海斌[1] 张巧枝 Xiao Hai-bin;Zhang Qiao-zhi(Hunan Railway Technology Vocational and Technical College,Zhuzhou,Hunan 412006;Hunan Southern Aerospace High Precision Transmission Co.,Ltd,Zhuzhou,Hunan 412000)

机构地区：[1]湖南铁路科技职业技术学院,湖南株洲412006 [2]湖南南方宇航高精传动有限公司,湖南株洲412000

出　　处：《内燃机与配件》2022年第24期73-75,共3页Internal Combustion Engine & Parts

摘　　要：本文以某微型细长轴零件为例,针对该零件加工过程中,在受到零件结构、床鞍干涉等因素的影响,无法使用中心架、跟刀架、顶尖进行辅助支撑的情况下,探索如何改善此类零件在车削加工过程中因刚性差、受切削力的作用出现变形和振动的现象。经实践,通过选择合适的毛坯尺寸,合理安排加工顺序,优化刀具几何形状,采用分层、分段组合加工法及挡屑装置等加工工艺,可有效增强微型细长轴类零件在车削加工中的刚性,有效减少因受力而产生的变形和振动。This paper takes a micro-slender shaft part as an example. In the process of processing this part, it is affected by the structure of the part, the interference of the saddle and other factors, and it is impossible to use the steady rest, the tool rest, and the top for auxiliary support. How to Improve the deformation and vibration of such parts due to poor rigidity and cutting force during turning. After practice, by selecting the appropriate blank size, rationally arranging the processing sequence, optimizing the tool geometry, and adopting the processing technology of layered and segmented combined processing and chip retaining devices, it can effectively enhance the use of miniature slender shaft parts in turning processing. The rigidity can effectively reduce the deformation and vibration caused by the force.

关 键 词：微型细长轴零件 刚性差 受力变形 振动 分层 分段组合加工法 

分 类 号：TG519.1[金属学及工艺—金属切削加工及机床]