·440·
Programming manual
CNC 8055
CNC 8055i
15.
COORDIN
A
TE TR
ANSFORMATION
·M· & ·EN· M
ODELS
S
OFT
: V02.2
X
TCP Tr
ansformation (G48)
15.3.1
Considerations about the G48 function
G49 cannot be programmed in the following instances:
• At the GP model CNC
• From the PLC channel (although it can be programmed from the user channel).
In order to work with TCP transformation (G48), the X, Y, Z axes must be defined, they must form
the acive trihedron and be linear. The X, Y and Z axes may have GANTRY axes, coupled or
synchronized via PLC, associated with them.
When working with TCP transformation and performing rigid tapping in inclined planes, all axes
gains (not only for the Z axis) must be adjusted by using the second gains and accelerations.
TCP transformation is kept active even after turning the CNC off and back on.
G48 can be programmed while G49 is active and vice versa.
To cancel TCP, program "G48 S0" or G48 without parameters. It is also canceled after a home search
(G74).
While TCP is on, the following operations are possible:
• Zero offsets G54-G59
• Pattern rotation (G73)
• Presets (G92, G93).
• Movements in continuous / incremental jog and handwheel
But the following cannot be done:
• Probing (G75).
• Do corner rounding or chamfering because in these instances tool orientation has to be
maintained.
• Compensate for tool length (G43) because TCP already implies a particular length
compensation. CAD/CAM programs usually program the coordinates of the spindle base.
Special care must be taken when turning G48 on and off.
• When G48 is on, the CNC shows the coordinates of the tool tip.
• When G48 is off, the CNC shows the coordinates of the tool base or theoretical tip (unturned tool).
1.
G48 off. The CNC shows the coordinates of the tool tip.
2.
G48 is turned on. The CNC still shows the coordinates of the tool tip.
3.
The tool is turned. Since G48 is already on, the CNC still shows the coordinates of the tool tip.
4.
G48 is turned off. The CNC shows the coordinates of the theoretical tip (unturned tool).
Содержание 8055 EN
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Страница 12: ...12 CNC 8055 CNC 8055i Declaration of conformity and Warranty conditions...
Страница 16: ...16 CNC 8055 CNC 8055i Version history...
Страница 22: ...22 CNC 8055 CNC 8055i Returning conditions...
Страница 24: ...24 CNC 8055 CNC 8055i Additional notes...
Страница 26: ...26 CNC 8055 CNC 8055i Fagor documentation...
Страница 238: ...238 Programming manual CNC 8055 CNC 8055i 11 IRREGULAR POCKET CANNED CYCLE M EN MODELS SOFT V02 2X 2D pockets...
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Страница 336: ...336 Programming manual CNC 8055 CNC 8055i 12 PROBING M EN MODELS SOFT V02 2X PROBE 12 Tabletop probe calibration...
Страница 394: ...394 Programming manual CNC 8055 CNC 8055i 13 HIGH LEVEL LANGUAGE PROGRAMMING M EN MODELS SOFT V02 2X Expressions...
Страница 442: ...442 Programming manual CNC 8055 CNC 8055i 15 COORDINATE TRANSFORMATION M EN MODELS SOFT V02 2X TCP Transformation G48...
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