Standard_Parts_Catalogue

Page 673 | 2.3 Tensioning with Eccentric Cams and Wedge Clamps The head of the cam point screw has two cams: a radial clamping cam (with additional 30° taper) and an axial draw-down cam. The cam ensures that the clamping force is the same in any angular position. The cam is also self-locking. Force components act on the clamping point which generate a draw-down effect and which, in addition to the friction, cause the workpiece to be pressed against a fixed stop. An additional draw-down effect is created by the thread and the 30° taper. Function • Position the thread bore(s) as specified • Screw the cam point screw in to the desired height and place it with its flat side facing the workpiece (note the minimum screw-in depth t) • For clamping effect above the head taper, the minimum clamping height should be h 2 • A turn of approx. 135° is required for clamping Assembly instructions Application examples GN 418.2 Cam Point Screws continued