GSK GSK988TA, Manual

Page: 100 / 531

GSK988TA/GSK988TA1/GSK988TB Turning Center CNC System User Manual 【 Programming & Operation 】
82
Ⅰ
Programming
M, S, T, F
They can be specified in the first G72 or the second ones or program ns ～ nf. M,
S, T, F functions of M, S, T, F blocks are invalid in G72, and they are valid in
only G70 finishing blocks
Address Incremental
system
Metric （ mm ） input
Inch (inch) input
ISB system 0.001~99999.999 0.0001~9999.9999
W
（
∆ d
）
ISC system 0.0001~9999.9999 0.00001~999.99999
ISB system
0 ～ 99999.999 0 ～ 9999.9999 R （ e ）
ISC system
0
～
9999.9999 0
～
999.99999
ISB system
-99999.999
～
99999.999 -9999.9999
～
9999.9999 U
（
∆ u
）
ISC system
-9999.9999 ～ 9999.9999 -999.99999 ～ 999.99999
ISB system
-99999.999
～
99999.999 -9999.9999
～
9999.9999 W
（
∆ w
）
ISC system
-9999.9999
～
9999.9999 -999.99999
～
999.99999
ISB system
1
～
99999 1
～
99999 P
（
ns
）
ISC system
1
～
99999 1
～
99999
ISB system
1
～
99999 1
～
99999 Q
（
nf
）
ISC system
1
～
99999 1
～
99999
Execution process: Fig. 2-44.
①
X rapidly traverses to A’ from A point, X travel is ∆ u, and Z travel is ∆ w;
②
X moves from m A’is ∆ d( tool infeed), ns block is for tool infeed at rapid traverse speed
with G0, is for tool infeed at G72 feedrate F in G1, and its direction of tool infeed is
that of A
→ B point;
③
X executes the cutting feeds to the roughing path, and its direction is the same that of X
coordinate B → C point;
④
X, Z execute the tool retraction e (45°straight line)at feedrate, the directions of tool
retraction is opposite to that of tool infeed ;
⑤
X rapidly retracts at rapid traverse speed to the position which is the same that of Z
coordinate;
⑥ After Z tool infeed ( ∆ d+e)again is executed, the end point of traversing tool is still on
the middle point of straight line between A’ and B’(the tool does not reach or exceed
B’), and after Z executes the tool infeed (
∆ d+e)again, is exec
③
uted
；
after the tool
infeed ( ∆ d+e) is executed again, the end point of tool traversing reaches B’ point or
exceeds the straight line between A’ → B’ point and Z executes the tool infeed to B’
point, and then the next step is executed;
⑦
Cutting feed from B’ to C’ point along the roughing path;
⑧
Rapidly traverse to A from C’ point and the program jumps to the next clock following nf
block after G71 cycle is completed.