ZeroClamp NP90, Инструкция по сборке и обслуживанию

Страница: 32 / 52

Operation
ZeroClamp zero point clamping system
– manual
32
7.1.1 Formulas and modelled presentation
The following three examples showing formulas to calculate the security against
losing the clamping force of the clamping pots.
The first example is a turning workpiece on a baseunit with four clamping pots with a
pitch of 200 mm.
By not lying on the rotational axis center of gravity (m) creates these an imbalance
(F
zentri
).
Parameter:
n = rotational speed [U/min]
m = mass of turned part [kg]
h
z
= height of emphasis [m]
h
s
= height of cutting force [m]
a = lever arm pull out force 1 [m]
b = lever arm pull out force 2 [m]
r
s
= eccentricity [m]
F
zentri
= centrifugal force [N]
F
Schnitt
= cutting force [N]
F
Auszug
x = Pull out force clamping pot x [N]