Oblique wedge clamping mechanism
A clamping mechanism that uses an oblique wedge as a force transmission element or clamping element is called an oblique wedge clamping mechanism.
When the bevel wedge is directly used for clamping, the self-locking condition of the bevel wedge is: the rising angle of the bevel wedge is less than the sum of the friction angles between the bevel wedge and the workpiece, and the bevel wedge and the clamp body.
That is: a ?0?5 f1 f2
In order to ensure reliable self-locking, the manual clamping mechanism generally takes a=6°~8°. The wedge driven by pneumatic or hydraulic device does not need to be self-locking, and a =15°~35° is acceptable.
The inclined wedge clamping has the characteristics of simple structure, large force increase ratio and good self-locking performance, so it is widely used.