HEIDENHAIN TNC 640 (34059x-01) Cycle programming - Manual (Page 210)

210 Fixed Cycles: Cylindrical Surface
8.5 Pr
ogr
amming Examples
Example: Cylinder surface with Cycle 28
Notes:
„ Cylinder centered on rotary table
„ Machine with B head and C table
„ Datum at center of rotary table
„ Description of the midpoint path in the
contour subprogram
0 BEGIN PGM C28 MM
1 TOOL CALL 1 Z S2000 Tool call, tool axis Z, diameter 7
2 L Z+250 R0 FMAX Retract the tool
3 I X+50 Y+0 R0 FMAX Position tool at rotary table center
4 PLANE SPATIAL SPA+0 SPB+90 SPC+0
TURN FMAX Positioning
5 CYCL DEF 14.0 CONTOUR GEOMETRY Define contour subprogram
6 CYCL DEF 14.1 CONTOUR LABEL 1
7 CYCL DEF 28 CYLINDER SURFACE Define machining parameters
Q1=-7 ;MILLING DEPTH
Q3=+0 ;ALLOWANCE FOR SIDE
Q6=2 ;SET-UP CLEARANCE
Q10=-4 ;PLUNGING DEPTH
Q11=100 ;FEED RATE FOR PLNGNG
Q12=250 ;FEED RATE FOR MILLING
Q16=25 ;RADIUS
Q17=1 ;TYPE OF DIMENSION
Q20=10 ;SLOT WIDTH
Q21=0.02 ;TOLERANCE Remachining active
C
Z
157
-52.5
40
-35
60
-70