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金属切削机床工作台一般都有T形槽,为了充分发挥T形槽的作用,现介绍一些新型T形槽用夹紧装置。一、可改变角度的夹紧装置可改变角度的夹紧装置是由支承座4、螺母3和螺钉5组成,如图1所示。支承座4可按图2的方法迅速插入工作台的T形槽内。螺母3装在支承座4的凹槽内。所以转动螺钉时,螺母不能旋转而使螺钉兼作轴向移动,从而沿垂直于T形槽方向夹紧工件。利用螺母的一个端面制成斜面来实现倾斜夹紧力,当螺母3按图3方向安装时,就会产生向下倾斜的夹紧力。一般我们把螺母3的一个平面制成15°斜角,也可根据需要而改变斜角。如果需要作用一个向上倾斜夹紧力,只要把图3中螺母3旋转180°即能达到目的。图4所示为将此夹紧装置与固定挡块配合使用,
Metal cutting machine table generally have T-shaped slot, in order to give full play to the role of T-slot, are introduced to some new T-slot clamping device. First, the angle can change the angle of the clamping device can change the angle by the bearing seat 4, nut 3 and 5 screws, as shown in Figure 1. Support 4 according to the method shown in Figure 2 can be quickly inserted into the T-slot table. The nut 3 is mounted in the recess of the support 4. Therefore, when the screw is rotated, the nut can not rotate and the screw also moves in the axial direction to clamp the work piece in a direction perpendicular to the T-shaped groove. The use of one end face of the nut is tapered to achieve a tilting clamping force. When the nut 3 is installed in the direction of FIG. 3, a downward tilting clamping force is generated. Generally, we make a plane of the nut 3 15 ° bevel, but also change the bevel as needed. If you need to exert an upward tilting clamping force, just turn the nut 3 in Figure 3 180 ° to achieve the goal. Figure 4 shows the use of this clamping device with a fixed stopper,