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6.5 Tilting Axes
6.5.1 Determining the Mechanical Offset
Double swivel
head 45°
6 – 52
Swivel heads and tilting tables are often used on milling machines to machine
workpieces from several sides.
The NC programs are written with a CAD system or directly at the TNC using
the tilt working plane function. The user programs the part program in the
X/Y plane and the TNC interpolates the proper axes. All path functions, cycles,
"datum setting" and "probing" can be applied in the transformed working
plane.
As an example, we will show how to determine the mechanical offset of a 45°
double swivel head and of a forked swivel head.
Note
The 3-D ROT function must be inactive during the entire measuring
process.
In this example, the mechanical offset of a double swivel head is determined
by using a 3-D touch probe.
Input values for the machine parameters:
n
MP7500 = %xxxx101
n
MP7510.0 = %000100
n
MP7510.1 = %000001
n
MP7510.2 = %001000
n
MP7510.3 = %000100
n
MP7510.4 = %100000
n
MP7510.5 = %001000
n
MP7510.6 = %000001
n
MP7510.7 = %010000
n
MP7510.8 = %000000
; Shift in Z axis
; Shift in X axis
; Rotate about A axis
; Shift in Z axis
; Free tilting axis C
; Rotate about A axis
; Shift in X axis
; Free tilting axis B
; End transformation
HEIDENHAIN Technical Manual TNC 426, TNC 430
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