Wedge piece clamp is a kind of the basiccest form in clamp orgnaization. Other if a few clamp are prejudicial annulus, bolt is this kind of wedge piece change model. Graph 3-33 place is shown it is jig of wedge piece clamp. Graph 3-33 wedge piece clamp wedge piece the working characteristic of clamp: (1) wedge piece from the lock the gender is become once original force Q disappears or after dismantling, clamp machinery falls in the action of pure attrition force, still should maintain its are in clamp condition and do not loosen, in order to assure the dependability of clamp. Of wedge piece from the lock the condition is: 1+ φ of α ≤ φ 2. Lock up oneself to assure reliable, take ° of ~7 of α =5 ° . (2) wedge piece the way that can change clamp active force; (3) wedge piece have the effect that gain strength, add force to compare I=Q/F ≈ 3; (4) wedge piece clamp journey is small; (5) structure is simple, clamp and loose need knock are big, small upright, the operation is no-go. To wedge piece clamp, because add force comparing, route size and locking up a condition oneself is restricted each other, reason is in when deciding wedge piece rises horny α , should give attention to two or morethings 3 person the real need below different condition. Ask to be locked up oneself already when the orgnaization, when wanting to have bigger clamp stroke again, can use double cant wedge piece (3-34) seeing a picture, forehead rises the quick stroke before horn is tightened with Yu Ga greatly, hind litres of small horn assures to be locked up oneself. Onefold wedge piece clamp orgnaization clamping force and add force to compare all lesser and the operation is disadvantageous, clamp journey satisfies real need hard also, because this is used rarely, use in motor-driven clamp or assorted clamp orgnaization normally. Wedge piece quenchs with 20 steel cementite commonly achieve HRC58~62, also come forcedly with 45 steel temper by dipping in water sometimes HRC42~46. Graph 3-34 double wedge promoting role piece CNC MillingCNC Machining