Chapter Three Programming
113
Part 1 Programming
3.7 The function of cycle machining
3.7.1 The function of the external operation
The function signal of external operation should be sent out from NC to one side of machine,
after the positioning of X___Y___ is executed, and one side of the machine can be performed some
especial operations based on this signal, such as clamping, drilling, and then perform a cycle. This
signal must be sent out before using G80 code to clear till the positioning is performed. Whether the
G81 is reset which can be set by BIT3 (CLER) of parameter 007, the system is on the G80 state when
the power is turned on.
The cycle positioning with L times is performed in terms of the digit followed with the address L,
and the external operation signal is sent out after each positioning is performed. When the block
without X and Y is performed, the external operation signal does not deliver. G81 can be used for the
following canned cycle by BIT5 (MCF) of parameter 009 other than used for the external function.
3.7.2 Canned cycle (G73, G74, G76, G80
~
G89)
Usually, canned cycle can be used one block (G code included) to replace the one of the number
from command machining, so that the program can be simplified.
Two kinds of canned cycle can be selected (A and B). G80, G81, G82, G84, G85, G86 and G89
listed in the following table can be used for type A, and all G codes listed in the following table can be
used for the type B
Refer to Table 7.2 for the canned cycle
Table 7.2 Canned cycles
G code
Drilling (-Z
direction)
Operation at the
bottom of a hole
Retraction (+Z
direction)
Application
G73
Intermittent feed
——
Rapid feed
High-speed peck
drilling
G74
Cutting feed
Spindle CW
Cutting feed
Left-hand tapping
G76
Cutting feed
Oriented spindle
stop
Rapid feed
Fine boring cycle
(only used for the
second group)
G80
—— —— ——
Cancel
the
canned cycle
G81 Cutting
feed
——
Rapid
feed
Drilling cycle (spot
drilling cycle)
G82
Cutting feed
Dwell
Rapid feed
Drilling cycle
(counter boring)
G83
Intermittent feed
——
Rapid feed
Peck drilling cycle
G84
Cutting feed
Spindle CCW
Cutting feed
Tapping cycle
G85
Cutting feed
——
Cutting feed
Boring cycle
G86
Cutting feed
Spindle stop
Rapid feed
Boring cycle
G87
Cutting feed
Spindle stop
Manual operation or
rapid run
Back boring cycle
G88
Cutting feed
Dwell, spindle stop
Manual operation or
rapid run
Boring cycle
G89
Cutting feed
Dwell
Cutting feed
Boring cycle
Note 1: Either the signal [(SRV
,
SSP) canned cycle I ] uses from NC or the M (canned cycle II) code uses to
control the spindle negative or stop which is determined by BIT7 (FIX2) of parameter 009.
Note 2: In G87 mode, different operations can be performed by the canned cycle I and II.
Normally, a canned cycle consists of six operations.
Summary of Contents for GSK983Ma
Page 124: ......
Page 143: ......
Page 185: ......
Page 209: ...Chapter Four Operation 197 Part 2 Operation ...
Page 239: ...Chapter Four Operation 227 Part 2 Operation ...
Page 242: ......
Page 279: ......
Page 296: ...GSK983Ma Milling Machine Center CNC System User Manual 284 Part 2 Operation ...
Page 371: ...Appendix 11 USB Interface Parameter Transfer Operation ...