机床主轴轴承(或垫)的固紧装置有不少是采用如图 1所示的J 14-6圆螺母,当用其上面的螺钉锁紧时,圆螺母的固紧力和螺钉的锁紧力是互相垂直的,这对机床主轴的振摆和轴承的使用寿命都会有影响。现就J 14-6圆螺母的受力情况做一简单的分析。 该螺母的一般工艺过程是:先将压块压入螺 Many machine tool spindle bearing (or pad) fastening devices are used as shown in Figure 1 J 14-6 round nut, with the top of the screw locking, the round nut clamping force and the locking screw The forces are perpendicular to each other, which affects the oscillation of the machine spindle and the service life of the bearing. Now on the force of J 14-6 round nut to do a simple analysis. The nut of the general process is: first pressure block into the screw