14 Каталог WIDIA 2011 Инструментальная оснастка для металлорежущих станков Стр.A4

Каталог WIDIA 2011 Инструментальная оснастка Стр. A4 0014 ENG Lab2u

KM Quick Change Selection Guide WIDIA Which KM Backend KM Mechanism The KM Quick Change clamp is a self-locking system with a mechanical amplification of 3:1 to 7:1. This system is effective because it locks by having three contact areas, and the mechanism is sealed with Viton O-rings to prevent component contamination. When in the locked position, there is increased interference between contact surfaces, resulting in superior rigidity. Because the face and taper contact within the unit is simultaneous, this provides accurate radial and axial repeatability. Elastic deformation provides greater static and dynamic stiffness. Three effective contact areas: Face Gage Diameter Load/Release Position First Contact Position Locked Position 1. Bump-off force 2. Bump-off 1. Point of first contact 2. Clamping force 3. Stand-off 1. Face contact 2. Interference at gage line 3. Tail contact 4. Clamping force 1 2 3 1 2 4 2 3 A4 WIDIA