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GSK980TDi Turning CNC System User Manual
126
Ⅰ
Programming
Fig. 3-79 G74 path
Command specifications:
1. The cycle movement is executed by Z(W) and P(
Δ
k) blocks of G74, and the movement
is not executed if only “G74 R(e) ; ” block is executed;
2.
Δ
d and e are specified by the same address and whether there are Z(W) and P(
Δ
k)
word or not in blocks to distinguish them;
3. The tool can stop in Auto mode and traverse in Manual mode when G74 is executed,
but the tool must return to the position before executing in Manual mode when G74 is
executed again, otherwise the following path will be wrong.
4. When the single block is running, programs dwell after each axial cutting cycle is
completed.
5. R(
Δ
d) must be omitted in blind hole cutting, and so there is no distance of tool retraction
when the tool cuts to axial end point of cutting.
Example
：
Fig. 3-80
Fig.3-80
Program (suppose that the grooving tool width is 4mm, system least increment is 0.0001mm):
