Yx z – HEIDENHAIN TNC 360 User Manual User Manual
Page 106
TNC 360
5-22
5
Programming Tool Movements
5.4
Path Contours – Cartesian Coordinates
Example for exercise: Milling a concave semicircle
Semicircle radius:
R
= 50 mm
Coordinates of the
arc starting point:
X
=
0
Y
=
0
Coordinates of the
arc end point:
X
= 100 mm
Y
=
0
Tool radius:
R
= 25 mm
Milling depth:
Z
= 18 mm
Part program
0
BEGIN PGM 360522 M ...................................... Begin program
1
BLK FORM 0.1 Z X+0 Y+0 Z–20 ........................ Define the workpiece blank
2
BLK FORM 0.2 X+100 Y+100 Z+0
3
TOOL DEF 2 L+0 R+25 ...................................... Define the tool
4
TOOL CALL 2 Z S2000 ....................................... Call the tool
5
L Z+100 R0 FMAX M6 ....................................... Insert and pre-position the tool
6
L X+25 Y–30 FMAX
7
L Z–18 FMAX M3
8
L X+0 Y+0 RR F100 ............................................ First contour point
9
CR X+100 Y+0 R+50 DR– .................................. Mill circular arc CR to the end point X = 100 mm, Y = 0; radius
R = 50 mm, negative direction of rotation
10
L X+70 Y–30 R0 FMAX
11
L Z+100 FMAX M2
12
END PGM 360522 MM ...................................... Retract the tool and end the program
–18
50
100
100
Y
X
Z
–20