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轴承装配常采用手锤打入或压床加套压入,因缺乏定心对中装置,常使主轴与轴承不同心。利用图示夹具可避免上述现象。中心锥3与主轴端面中心孔对中,转动主轴以保证中心锥与主轴相吻合,然后检查轴承与主轴的缝隙是否平均,摇动压床手柄,即可压入轴承。压入过程中,中心锥与胀套1脱离接触,直至胀套碰到主轴端面后,轴承1可从胀套滑出而被压入轴颈内。压床抬起,弹簧4推动顶锥和胀套恢复原位。
Bearing assembly often used hand hammer into the press or press jacketed into, due to the lack of centering device, often make the spindle and bearing different heart. The use of graphic fixtures to avoid this phenomenon. Center cone 3 and the spindle center hole centering, turning the spindle to ensure that the center cone coincides with the spindle, and then check the bearing and the spindle gap is average, shake the press handle, you can press into the bearing. During the press-in process, the center cone is disengaged from the expansion sleeve 1 until the expansion sleeve touches the spindle end face, and the bearing 1 slides out of the expansion sleeve and is pressed into the journal. Press raised, the spring 4 to promote the top cone and expansion sleeve to restore the original position.