GSK 988T, User Manual

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GSK988T Turning CNC System User Manual
96
Ⅰ
Programming
radius), Z is long axis; and reversely, X is the long axis.
Fig. 2-60 Straight thread
Fig.2-61 Taper thread
Cycle process: straight thread as Fig.2-60 and taper thread as Fig.2-61.
①
X traverses from starting point to cutting starting point;
② Thread interpolates (linear interpolation) from the cutting starting point to cutting end point;
③
X retracts the tool at the cutting feedrate (opposite direction to the above-mentioned
①
),
and return to the position which X absolute coordinate and the starting point are the same;
④ Z rapidly traverses to return to the starting point and the cycle is completed.
Note 1: When J, K is omitted, the thread run-out is confirmed by No. 5130 (chamfering value) and No. 1531
(run-out angle) , the run-out value of the long axis =No. 5130 setting value ×0.1×F, and F is the
thread pitch. When No. 5131 (the run-out angle) is set to 0, the long axis and the short axis execute
45°run-out; when the setting value is positive integer, the run-out is done based on the run-out
value and angle of the long axis(the system automatically counts the run-out value of the short
axis);
Note 2: Length of thread run-out is K in the long direction and is specified by No.5130 when J is omitted;
Note 3: Length of thread run-out is J=K when K is omitted;
Note 4: There is no thread run-out when J=0 or J=0, K=0;
Note 5: Length of thread run-out is J=K when J
≠ 0,K=0;
Note 6: There is no thread run-out when J=0,K ≠ 0;
Note 7: After executing the feed hold in thread cutting, the system does not stop cutting until the thread