一级特黄AAA大片在线观看_国产一级a毛一级a看免费视频_一级a性色生活片久久无少妇一级婬片免费放_特级丰满少妇一级AAAA爱毛片_综合久久午夜无码鲁丝片久久真人一级毛片_完整观看高清秒播国内外精品资源_欧美成人精品欧美一级乱黄_伊人天天久大香线蕉av色_无毒不卡在线观看无需下载_寡妇高潮一级毛片91免费看`日韩一区二区

Hotline:139-2949-6629
  • Company News|
  • Industry news|
  • location:Home > > Industry news
    Industry news

    Assembly method of spindle of nc machine tool

    Date:2018-10-19 Click:3639

    Nc machine assembly is a highly technical activity, which requires professional assembly personnel to conduct assembly. The assembly method of its spindle is as follows:


    1. Before assembling, each part must be cleaned with gasoline to prevent dirt from entering into the body and affect the accuracy and life of the spindle;


    2. Assembly sequence is opposite to disassembly sequence;


    3. For the spindle with spacer sleeve, the spacer sleeve should be provided when the new bearing is replaced. The tightening force of the bearing should be tested to ensure that the parallel difference between the two ends of the spacer sleeve is not greater than 0.002mm;


    4. The bearing assembly shall be pressed into the housing on the shaft by the pressure machine. Hammering on the bearing is strictly prohibited;


    5. After the completion of the electric spindle assembly, the protruding end of the main shaft should be flexibly and without any gap or stuck, and the spindle should beat according to the requirements. Then, the mounting machine should be tested according to the test procedure of the new shaft from low speed to high speed.