HEIDENHAIN TNC 320 (340 55x-04) Cycle programming User Manual

Page 86

Advertising
background image

86

Fixed Cycles: Drilling

3.1

0

SINGLE-FLUTED DEEP

-HOLE DR

ILLING (Cy

c

le 241, DIN/ISO: G241)

U

Rotat. dir. of entry/exit (3/4/5) Q426: Desired

direction of spindle rotation when tool moves into and
retracts from the hole. Input range:
3: Spindle rotation with M3
4: Spindle rotation with M4
5: Movement with stationary spindle

U

Spindle speed of entry/exit Q427: Desired spindle

speed when tool moves into and retracts from the
hole Input range 0 to 99999

U

Drilling speed Q428: Desired speed for drilling Input

range 0 to 99999

U

M function for coolant on? Q429: M function for

switching on the coolant The TNC switches the
coolant on if the tool is in the hole at the deepened
starting point Input range 0 to 999

U

M function for coolant off? Q430: M function for

switching off the coolant The TNC switches the
coolant off if the tool is at the hole depth. Input range
0 to 999

Example: NC blocks

11 CYCL DEF 241 SINGLE-LIP DEEP-HOLE
DRILLING

Q200=2

;SETUP CLEARANCE

Q201=-80

;DEPTH

Q206=150

;FEED RATE FOR PLNGNG

Q211=0.25 ;DWELL TIME AT DEPTH

Q203=+100 ;SURFACE COORDINATE

Q204=50

;2ND SETUP CLEARANCE

Q379=7.5

;STARTING POINT

Q253=750

;F PRE-POSITIONING

Q208=1000 ;RETRACTION FEED RATE

Q426=3

;DIR. OF SPINDLE ROT.

Q427=25

;ROT. SPEED INFEED/OUT

Q428=500

;DRILLING SPEED

Q429=8

;COOLANT ON

Q430=9

;COOLANT OFF

Advertising