HEIDENHAIN 548431-05, Руководство пользователя, Страница: 325 / 722

Teach-in | Thread and undercut cycles
5
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
325
GH : Type of offset
0: Without offset
1: From left
2: From right
3: Alternating left/right
A : Approach ang. (range: –60° < A < 60°; default: 30°)
A
< 0: Infeed on left thread flank
A > 0: Infeed on right thread flank
R : Rem. cut depth (only with GV = 4; default: 1/100 mm)
Q
:
Number no-load.
MT : M after T : M function that is executed after the tool call T
MFS
:
M at beginning
:
M
function that is executed at the
beginning of the machining step
MFE : M at end : M function that is executed at the end of the
machining step
WP : No. of spindle – Displays which workpiece spindle is used
to execute the cycle (machine-dependent)
Main drive
Opposing spindle for rear-face machining
BW : Angle in the B axis (machine-dependent)
CW
:
Reverse the tool
(machine-dependent)
HC : Shoe brake (machine-dependent)
DF : Miscellaneous function (machine-dependent)
Type of machining for technology database access:
Thread cutting
Parameter combinations for the taper angle:
X1 / Z1 , X2 / Z2
X1
/
Z1
,
Z2
,
W
Z1 , X2 / Z2 , W
Cycle run:
1 Calculate the proportioning of cuts
2 Move to the
Start point X1 , Z1
3 Move to the
End point thread Z2
at the programmed feed rate,
taking the Run-out angle WE into account
4 Return on a paraxial path and approach for the next thread
groove
5 Repeat 3 to 4 for all thread grooves
6 Approach for the next pass, taking the
reduced cutting depth
and the Approach ang. A into account
7 Repeat 3 to 6 until No.gears D and Thread depth U are reached
8 Move to the Tool change point according to the setting in G14