Heidenhain iTNC 530 (340 420) Manuel d'utilisateur télécharger pdf (Page 441)

HEIDENHAIN iTNC 530 413

10.11 Programming Examples

Example: Ellipse

Program sequence

n The contour of the ellipse is approximated by

many short lines (defined in Q7). The more

calculating steps you define for the lines, the

smoother the curve becomes.

n The machining direction can be altered by

changing the entries for the starting and end

angles in the plane:

Clockwise machining direction:

starting angle > end angle

Counterclockwise machining direction:

starting angle < end angle

n The tool radius is not taken into account.

0 BEGIN PGM ELLIPSE MM

1 FN 0: Q1 = +50

Center in X axis

2 FN 0: Q2 =+50

Center in Y axis

3 FN 0: Q3 = +50

Semiaxis in X

4 FN 0: Q4 = +30

Semiaxis in Y

5 FN 0: Q5 = +0

Starting angle in the plane

6 FN 0: Q6 = +360

End angle in the plane

7 FN 0: Q7 = +40

Number of calculating steps

8 FN 0: Q8 = +0

Rotational position of the ellipse

9 FN 0: Q9 = +5

Milling depth

10 FN 0: Q10 = +100

Feed rate for plunging

11 FN 0: Q11 = +350

Feed rate for milling

12 FN 0: Q12 = +2

Set-up clearance for pre-positioning

13 BLK FORM 0.1 Z X+0 Y+0 Z-20

Define the workpiece blank

14 BLK FORM 0.2 X+100 Y+100 Z+0

15 TOOL DEF 1 L+0 R+2.5

Define the tool

16 TOOL CALL 1 Z S4000

Tool call

17 L Z+250 R0 FMAX

Retract the tool

18 CALL LBL 10

Call machining operation

19 L Z+100 R0 FMAX M2

Retract in the tool axis, end program

X

Y

50

50

30

50

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