我厂T68镗床主轴箱漏油比较严重,主要出现在连接尾筒光杠的输出轴、镗杆夹紧机构轴、传动平旋盘进刀机构的输出轴、垂直光杠蜗杆支承座、垂直丝杠过渡孔以及各传动轴头盖、窗孔盖、前脸大盖和手动移动机构、主变机构体罩。为此,在大修过程中,我们做了如下改进,收到了较好的效果。1.连接尾筒光杠输出轴漏油部分的改进。漏油原因,是箱体内部的润滑油因齿轮的甩溅,油沿输出轴、过轴承进入定位套内部(图1),积满后,流出箱体。改进后(图2),将挡油套省去,定位套改成如图形状,再加 I T68 boring machine spindle box oil spills more serious, mainly in the output shaft connected tailgating light bar, boring bar clamping mechanism shaft, drive flat dial into the body of the output shaft, vertical light bar worm bearing, vertical wire Bumper transition hole and the drive shaft cover, window cover, the front face cover and manual movement mechanism, the main transformer body cover. To this end, in the overhaul process, we made the following improvements, received good results. 1. Connect the tailgate light bar output shaft leakage part of the improvement. The reason for the oil leakage is that the lubricating oil inside the tank is thrown by the gear due to the splashes of the gear. The oil enters the inside of the positioning sleeve through the bearing along the output shaft (FIG. 1). When the oil is full, it flows out of the housing. After the improvement (Figure 2), the oil retaining sleeve omitted, positioning sleeve into a graphical form, plus