Peripheral Milling: 3-D Radius Compensation With Tcpm And Radius Compensation (Rl/Rr) - HEIDENHAIN TNC 620 User Manual

Multiple-axis machining | Three-dimensional tool compensation (option 9)
Peripheral milling: 3-D radius compensation with TCPM
and radius compensation (RL/RR)
The control offsets the tool perpendicularly to the direction of
motion and perpendicularly to the direction of the tool by the sum
of the delta values DR (tool table and NC program). Determine the
compensation direction with radius compensation RL/RR (see figure,
traverse direction Y+). In order for the control to be able to reach the
specified tool orientation, you need to activate the function M128 or
TCPM.
Further information: "Retaining the position of the tool tip during the
positioning of tilting axes (TCPM): M128 (option 9)", Page 465
The control then positions the rotary axes automatically in such a
way that the tool can reach the specified tool orientation with the
active compensation.
Refer to your machine manual.
This function is only available with spatial angles. Your
machine tool builder defines how these can be entered.
The control is not able to automatically position the rotary
axes on all machines.
The control generally uses the defined delta values
for 3-D tool compensation. The entire tool radius R +
DR) is only taken into account if you have activated the
FUNCTION PROG PATH IS CONTOUR function.
Further information: "Interpretation of the programmed
path", Page 484
Danger of collision!
The rotary axes of a machine may have limited ranges of traverse,
e.g. between -90° and +10° for the B head axis. Changing the tilt
angle to a value of more than +10° may result in a 180° rotation
of the table axis. There is a danger of collision during the tilting
movement!
Program a safe tool position before the tilting movement, if
necessary.
Carefully test the NC program or program section in the
Program run, single block operating mode
There are two ways to define the tool orientation:
In an LN block with the components TX, TY and TZ
In an L block by indicating the coordinates of the rotary axes
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
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