Mitsubishi Electric M700V Series Manual page 62

MITSUBISHI CNC
III Functional Specifications
4.5.2 Variable Lead Thread Cutting
M720VW
M system ―
L system ○
By commanding the lead increment/decrement amount per thread rotation, variable lead thread cutting can
be done.
The machining program is commanded in the following manner.
G34 Xx1/Uu1 Zz1/Ww1 Ff1/Ee1 Kk1 ;
G34
Xx1/Uu1
Zz1/Ww1
Ff1/Ee1
Kk1
(a)
(a) Non-lead axis
(b) Lead axis
(c) Lead speed
III - 60
M730VW M750VW
― ―
○ ○
: Variable lead thread cutting command
: Thread end point X coordinate
: Thread end point Z coordinate
: Thread's basic lead
: Lead increment/decrement amount per thread rotation
F+3.5K F+2.5K
(c)
F+3K
F+4K
M720VS M730VS M750VS
― ―
○ ○
F+1.5K F+0.5K
F+2K F+K F
―
○
(b)