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5 p a th cont ours—p o lar coor dinat e s – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

Page 266

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266

6 Programming: Programming Contours

6.5 P

a

th Cont

ours—P

o

lar Coor

dinat

e

s

Programming a helix

Polar coordinates angle:

Enter the total angle of

tool traverse along the helix in incremental
dimensions. After entering the angle, specify the
tool axis with an axis selection key.

Coordinate:

Enter the coordinate for the height of the

helix in incremental dimensions.

Direction of rotation DR

Clockwise helix: DR–
Counterclockwise helix: DR+

Example NC blocks: Thread M6 x 1 mm with 5 revolutions

Y

X

Z

25

40

5

270°

R3

CC

Always enter the same algebraic sign for the direction of
rotation DR and the incremental total angle IPA. The tool
may otherwise move in a wrong path and damage the
contour.

For the total angle IPA, you can enter a value from –5400°
to +5400°. If the thread has more than 15 revolutions,
program the helix in a program section repeat (see
“Program Section Repeats,” page 582).

12 CC X+40 Y+25

13 L Z+0 F100 M3

14 LP PR+3 PA+270 RL F50

15 CP IPA-1800 IZ+5 DR-