GSK GSK980TDc, Руководство пользователя

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Chapter 3 G Commands
117
Ⅰ
Progra
mming
●
The thread cutting decelerates to stop when the system resets, emergently stop or its drive
unit alarms.
Example: Pitch: 2mm. δ 1 = 3mm, δ 2 = 2mm,total cutting depth 2mm divided into two times cut-in.
Program:
O0009;
G00 X28 Z3; (First cut-in 1mm)
G32 X51 W-75 F2.0; (First taper cutting)
G00 X55; (Tool retraction)
W75; (Z returns to the starting point)
X27; (Second tool infeed 0.5mm)
G32 X50 W-75 F2.0; (Second taper thread cutting )
G00 X55; (Tool retraction)
W75 ; (Z returns to the starting point)
M30;
3.21.2 Rigid thread cutting G32.1
Command format
：
G32.1 X(U)__ Z(W)__ C(H)__F(I)__ S__
；
Command function
：
The traditional thread interpolation calculates the current distance of the
movement of the feed axis based on the feedback pulse count of the position encoder
installed on the spindle, which can realize the feed axis to follow the thread
interpolation mode of the spindle. Its disadvantages are that there is a big error in the
thread lead in acceleration/deceleration. In the rigid thread interpolation mode, the
working of the spindle motor is the same that of the servo motor, and the
interpolations between the feed axis and the spindle execute the thread interpolation
to get the thread with high precision.
Command explanation:
G32.1 ： rigid thread interpolation command;
C
：
start angle of thread interpolation;
（ X,Z ） ： end point coordinates of thread interpolation;
F
（
I
） ：
thread lead, F
（
I
）
> 0 right-hand thread, F
（
I
）
< 0 left-hand thread
；
S ： spindle speed ；
Fig.3-39
Starting point
End point