汽车发动机连杆珩磨工艺分析

Analysis of Honing Process for Connecting Rod of Vehicle Engine

针对连杆珩磨中出现的问题进行了工艺分析,找出影响工件质量的主要因素,并对所采取的措施加以讨论,如提高珩磨机主轴运行刚度及精度;改进夹具,使其自由平稳浮动;选用耐磨材料做导套;加大冲屑及润滑力度;选择适应高速冲击切削的金属基单晶刚玉磨石;提高磨石胶接强度,调整网纹角度,使切削痕迹不重复,周圈均布等,使工作质量得以很大提高。

The process is analyzed and the main reasons of influencing the workpiece quality are found in order to resolving the problem in connecting rod honing in this paper. Moreover, the upswing techniques are discussed. For instance, improve rigidity and precision of honing facilities principal axis; make the honing machine floating freely and smoothly by mending the jigs; choose the wearable material as leading cover; increase the strength of flushing scraps and lubricating; choose metal base single crystal corundum hone in order to fit high speed bumping cutting; make cutting trace not repeated and distributing uniformly by improving cementation intension of hone and adjusting the angle of meshy veins. So the working quality is increased greatly.