驻退杆外圆珩磨装备结构设计

Structure Design of External Honing Equipment for Recoil Piston Rod

针对驻退杆外圆表面在加工后表面粗糙度一致性差,加工及测量效率低等问题,结合驻退杆的结构特点及使用需求,突破在位测量关键技术,设计了驻退杆外圆珩磨装备。采用全浮动分体式定压进给珩磨单元对驻退杆外圆表面进行珩磨加工,可在驻退杆外圆表面形成交叉网纹,有利于油液储存和油膜保持。基于比对式测量法的在位测量系统采用接触式测量仪,通过两点法计算驻退杆指定截面的直径和圆度。

Aiming at the problems of poor consistency of surface roughness after processing on the cylindrical surface of the recoil piston rod, and low processing and measurement efficiency, Combined with the structure characteristics and use requirements of the recoil piston rod, Breakthrough the key technology of on-machine measurement, and design the external honing equipment of the recoil piston rod.The full-floating split constant-pressure feed honing unit is used to honing the cylindrical surface of the recoil piston rod, which can form a cross-net pattern on the outer surface of the recoil piston rod, which is conducive to oil storage and oil film retention.The on-machine measurement system based on the comparison measurement method uses a contact measuring instrument to calculate the diameter and roundness of the designated section of the recoil piston rod through the two-point method.