Модульные инструментальные системы линейки KM4X Kennametal 2017 - страница 135

Предыдущая страница Следующая страница

Навигация

Glossary Lockrod Reserve Stroke A cylindrical component contained in the canister as part of the The amount of lockrod stroke available from the clamped clamping mechanism. It contains the ball tracks to drive the position, with a cutting unit in place, to the minimum held locking balls in an outward direction to clamp the cutting unit. position in the KM™ clamping unit. Primarily used in the design and evaluation of a KM™ clamping mechanism. Lockrod Force The force supplied to the lockrod to drive the locking balls and Stand Off clamp a cutting unit. Lockrod force can be supplied in various The distance between the gage face of a cutting unit and the ways. Screw threads, springs, hydraulic cylinders, and low- gage face of a clamping unit when the tapers first come in pressure air mechanisms have all been used to provide contact with one another. Since the taper rate of the KM™ lockrod force. system is 1:10, the measurement is exactly 10 times the amount of interference between the two taper gage diameters. Mechanical Advantage The ratio of clamping force divided by lockrod force. The value Stroke for the mechanical advantage of a KM™ clamping unit is related The maximum distance that a lockrod can travel in a KM™ to the cutting unit ball track angle, the canister ball track angle, clamping unit. This distance is usually determined by the travel and the lockrod ball track angle. of the lockrod between a front or release stop and a rear or clamping stop. Minimum Held Position where the lockrod is at its maximum displacement while retracting and springs are at minimum compression. Also referred to as the end of stroke position or “clamped without tool” position. Orientation Key A key like feature found on the canister that, in conjunction with the slot in a KM™ cutting unit, provides proper orientation of the cutting unit or tool before clamping. Relieved Taper The internal taper of a KM™ clamping unit has a relief machined into it that divides the taper into front and back ends. The relief serves two purposes: it is related to the ball track in the cutting unit so that the hole coming through the external taper does not scuff the internal taper. It also reduces the amount of taper contact between the two tapers allowing the use of optimized interference levels with less clamping force required to seat the gage faces. kennametal.com C35 KMT_KM4X_Catalog_C034_C035_EN.indd 35 L V i KMT KM4X C l C034 C035 EN S b 2 2016 10 35 9/2/16 AMAM 10:35