Example: Cylinder Surface With Cycle 28 - HEIDENHAIN TNC 620 User Manual

8

Example: Cylinder surface with Cycle 28

Cylinder centered on rotary table
Machine with B head and C table
Preset 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
2 L Z+250 R0 FMAX
3 L X+50 Y+0 R0 FMAX
4 PLANE SPATIAL SPA+0 SPB+90 SPC+0 TURN FMAX
5 CYCL DEF 14.0 CONTOUR
6 CYCL DEF 14.1 CONTOUR LABEL 1
7 CYCL DEF 28 CYLINDER SURFACE
Q1=-7
Q3=+0
Q6=2
Q10=-4
Q11=100
Q12=250
Q16=25
Q17=1
Q20=10
Q21=0.02
8 L C+0 R0 FMAX M3 M99
9 L Z+250 R0 FMAX
10 PLANE RESET TURN FMAX
11 M2
12 LBL 1
13 L X+60 Y+0 RL
14 L Y-35
15 L X+40 Y-52.5
16 L Y-70
17 LBL 0
18 END PGM C28 MM
268
;MILLING DEPTH
;ALLOWANCE FOR SIDE
;SET-UP CLEARANCE
;PLUNGING DEPTH
;FEED RATE FOR PLNGNG
;FEED RATE F. ROUGHNG
;RADIUS
;TYPE OF DIMENSION
;SLOT WIDTH
;TOLERANCE
Fixed Cycles: Cylindrical Surface | Programming Examples
Y (Z)
Tool call, tool axis Z, diameter 7
Retract the tool
Position tool at rotary table center
Tilting
Define contour subprogram
Define machining parameters
Remachining active
Pre-position rotary table, spindle ON, call the cycle
Retract the tool
Tilt back, cancel the PLANE function
End of program
Contour subprogram, description of the midpoint path
Data for the rotary axis are entered in mm (Q17=1)
HEIDENHAIN | TNC 620 | User's manual for cycle programming | 10/2017
X (C)