GSK 980TDi, User Manual

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GSK980TDi Turning CNC System User Manual
120
Ⅰ
Programming
X absolute coordinates of A
1
compared to A. Δ u
＞
0,it is the offset of the last X positive
roughing path compared to finishing path. The system defaults Δ u=0 when U( Δ u) is
not input, i.e. there is no X finishing allowance for roughing cycle.
Δ w: It is Z finishing allowance and its range is-99999.999~99999.999(IS_B ）
/-9999.9999~9999.9999(IS_C) (diameter, unit: mm/inch, with sign symbol) and is the X
coordinate offset of roughing path compared to finishing path, i.e. the different value of Z
absolute coordinates of A
1
compared to A. Δ w
＞
0,it is the offset of the last X positive
roughing path compared to finishing path. The system defaults Δ w=0 when W( Δ w) is not
input, i.e. there is no Z finishing allowance for roughing cycle.
F: Feedrate; S: Spindle speed; T: Tool number, tool offset number.
M, S, T, F: They can be specified in the first G73 or the second ones or program ns
～
nf. M, S,
T, F functions of M, S, T, F blocks are invalid in G73, and they are valid in G70 finishing blocks.
Execution process: (Fig. 3-77)
① A → A
1
: Rapid traverse;
②
First roughing A
1
→ B
1
→ C
1
:
A
1
→ B
1
: Rapid traverse speed in ns block in G0, cutting feedrate specified by G73 in ns block
in G1;
B
1
→ C
1
: Cutting feed.
③
C
1
→ A
2
: Rapid traverse.
④ Second roughing A
2
→ B
2
→ C
2
:
A
2
→ B
2
: Rapid traverse speed in ns block in G0, cutting feedrate specified by G73 in ns block
in G1;
B
2
→ C
2
: Cutting feed.
⑤
C
2
→ A
3
: Rapid traverse:
…………
No. n times roughing, A
n
→ B
n
→ C
n
:
A
n
→ B
n
: ns Rapid traverse speed in ns block in G0, cutting feedrate specified by G73 in ns
block in G1;
B
n
→ C
n
: Cutting feed.
C
n
→ A
n+1
: Rapid traverse;
…………
Last roughing , A
d
→ B
d
→ C
d
:
A
d
→ B
d
: Rapid traverse speed in ns block in G0, cutting feedrate specified by G73 in ns block
in G1;
B
d
→ C
d
: Cutting feed.
C
d
→ A: Rapid traverse to starting point;