HUST CNC H6D-T - Page 120

HUST CNC H6D-T Manual
3 - 58
Groove cutting cycle: “X60.” indicating drilling
cycle ends at the absolute coordinate X60. “Z3.”
Indicates that the cycle ends at coordinate Z3.
“P5.” stands for a drilling depth of 2500 ( m) for
each drilling cycle. Q0.5 stands for Z-direction
movement per cycle is 500 ( m). “R1.” indicates
tool retraction of 1000 ( m) in Z-direction after
reaching the end position. (diameter specification)
N50 M5 S0 Spindle stop.
N60 M2 end of program.
7. Compound Thread Cutting Canned Cycle, G76
Functions and Purposes:
G76 specifies the start point and end point of a thread cutting. This command can be
entered at any angle. A fixed number of loops are cut for every cycle with the same
cross-section. Thread end point coordinate and specification of slanting height are
considered. It is also capable of performing thread cutting in various directions.
Format:
G76 P(m)(r)(a)___ Q( d min)___ R(d)___
G76 X(U)____ Z(W)____ R(i)____ P(k)____ Q( d)____ F(l)____ E____
Fig. 3-44 G76 Compound Thread Cutting Canned Cycle
C
X
Z
E
A
D
B
U/2
X/2
Z
i
r
(G00)
(G00)
(F)
(G00)
W
d
K