龙门铣以及其它许多类似的机床,都有这样一个坏毛病,即主轴夹套常常在不需要其滑下的时候自动下滑,而当需要其滑下时却又卡在主轴上。为此,人们已采取了许多有效的措施,如安装弹簧、使用橡皮圈等来克服这一毛病。此外,用用一块磁铁也能很好地解决这一问题。用环氧树脂结合剂将一块小磁铁粘到主轴罩上,然后将夹套球端轻轻靠在磁铁 Gantry milling and many other similar machine tools have the disadvantage that the spindle jacks often slide down automatically when they do not need to slide down and jam against the spindle when they need to slide down. To this end, many effective measures have been taken, such as installing springs and rubber bands to overcome this problem. In addition, using a magnet can also be a good solution to this problem. A small magnet bonded to the spindle cover with an epoxy bond, and then the ball on the jacket gently against the magnet