当垂直刀架下降时，由于摩擦力阻碍其下降，使丝杆的上螺旋面螺母的下螺旋面相接触，丝杆螺母的间隙在下面。
When the vertical turret decline, due to friction hinder its decline, the screw on helical screw nut under the physiognomy contact screw nut in the space below.
机床工作台能实现快速水平和垂直移动，刀架具有自动抬刀机构，机床手柄集中，操作方便，自动化程度高。
The table moves rapidly in both horizontal and vertical direction, the tool post is with auto tool lifter, the handles collect, so the machine is with easy operation & advanced automation.
B665牛头刨床的刀架存在没有自动抬刀装置，没有自动垂直进给机构，以及刀架落刀等问题。
Having no automatic tool lifter, having no automatic vertical feed structure and cutter frame setting are frequent problems in the cutter frame of B665 transverse planing machine.
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