beautypg.com

HEIDENHAIN TNC 410 ISO Programming User Manual

Page 302

background image

276

8 Programming: Cycles

8.7 SL Cy

cles Gr

ou

p II (no

t T

N

C

4

1

0)

U

U

U

U

Milling depth

Q1 (incremental value): Distance

between workpiece surface and contour floor.

U

U

U

U

Finishing allowance for side

Q3 (incremental

value): Finishing allowance in the working plane.

U

U

U

U

Workpiece surface coordinate

Q5 (absolute value):

Absolute coordinate of the workpiece surface
referenced to the workpiece datum.

U

U

U

U

Clearance height

Q7 (absolute value): Absolute

height at which the tool cannot collide with the
workpiece. Position for tool retraction at the end of
the cycle.

U

U

U

U

Plunging depth

Q10 (incremental value): Dimension

by which the tool plunges in each infeed.

U

U

U

U

Feed rate for plunging

Q11: Traversing speed of the

tool in the tool axis.

U

U

U

U

Feed rate for milling

Q12: Traversing speed of the

tool in the working plane.

U

U

U

U

Climb or up-cut ? Up-cut = –1

Q15:

Climb milling: Input value = +1
Up-cut milling: Input value = –1
To enable climb milling and up-cut milling alternately
in several infeeds:Input value = 0

Example: NC block

N62 G125 Q1=-20 Q3=+0 Q5=+0 Q7=+50 Q10=+5
Q11=100 Q12=350 Q15=+1 *