摘要
针对某薄板齿轮加工过程中易出现变形的问题,分析其产生的主要原因为机械加工后残余应力较大、热处理时热应力与组织应力较大、磨削热影响、磨削工件刚性差、定位面平面度误差大、精加工过程安排不合理以及装夹不稳定等。结合实际加工,提出优化热处理零件结构,减少机加工残余应力影响,减小定位面平面度误差,优化精加工过程,提高装夹稳定性等改进措施。经实例验证,改进后的加工工艺效果良好,保证了零件加工精度,可为类似薄板齿轮零件提供技术借鉴。
Aiming at the deformation of thin plate gears,the main reasons are analyzed as follows:large residual stress after machining,large thermal stress and structural stress during heat treatment,effects of grinding heat,poor rigidity of parts during grinding,large flatness error of locating surface,unreasonable arrangement of finishing process and unstable clamping.Combined with the actual processing,several improvement measures are put forward,such as optimizing the structure of heat treated parts,reducing the influence of machining residual stress,reducing the flatness error of locating surface,optimizing the finishing process and improving clamping stability.It is verified that these improvement measures have positive impact and ensure the accuracy of parts,which provides technical reference for similar thin plate gear parts.
作者
吴清雨
殷耀君
姚素娴
杨洪平
Wu Qingyu;Yin Yaojun;Yao Suxian;Yang Hongping(Nanjing Engineering Institute of Aircraft System,Nanjing 211106,China)
出处
《机械传动》
北大核心
2023年第4期171-176,共6页
Journal of Mechanical Transmission
关键词
薄板齿轮
热处理
变形
厚度
结构
装夹
磨削
Thin plate gear
Heat treatment
Deformation
Thickness
Structure
Clamping
Grinding
