Be machined when workpiece face with central element (plane of axes, center) when be working procedure radical to allow, to make fiducial coincide locates with decreasing error, need to use centering clamp orgnaization. Centering clamp orgnaization is to show the semmetry that can assure workpiece is nodded (or symmetrical line, face) the clamp orgnaization that is in fixed and exact position from beginning to end in clamp process. Its characteristic is: The fixed position component of clamp orgnaization and clamping unit close for an organic whole, and fixed position and clamp movement are undertake at the same time. Centering clamp orgnaization is two sort by cent of its job principle model, one kind is to press fixed position -- the fast shift principle such as clamping unit will realize centering clamp, 3 claw from centering chuck it is typical example; Another kind is to press fixed position -- clamping unit is even the orgnaization that flexibility is out of shape the principle will realize centering clamp, if chuck of pinchcock canister, diaphragm, fluidity is plastic,wait. CNC MillingCNC Machining