GSK 988T, User Manual

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GSK988T Turning CNC System User Manual
VIII
2.12.1 Reference position return G28..............................................................................50
2.12.2 2
nd
, 3
rd
, 4
th
reference position return G30 .............................................................51
2.13 Related Function of Coordinate System .........................................................................52
2.13.1 Selecting machine coordinate system position G53 .............................................53
2.13.2 Workpiece coordinate system setting G50 ...........................................................54
2.13.3 Workpiece coordinate system selection command G54
～
G59.............................55
2.13.4 Local coordinate system setting G52....................................................................57
2.13.5 Level selection command G17
～
G19 ...................................................................59
2.13.6 Exact stop mode G61/cutting mode G64 ..............................................................59
2.14 Fixed Cycle Command ...................................................................................................60
2.14.1 Axial cutting cycle G90 .........................................................................................60
2.14.2 Radial cutting cycle G94 .......................................................................................63
2.15 Multiple Cycle Commands ..............................................................................................66
2.15.1 Axial Roughing Cycle G71....................................................................................66
2.15.2 Radial Roughing Cycle G72...............................................................................72
2.15.3 Closed Cutting Cycle G73 ....................................................................................77
2.15.4 Finishing Cycle G70 .............................................................................................82
2.15.5 Axial Grooving Multiple Cycle G74 .......................................................................83
2.15.6 Radial Grooving Multiple Cycle G75.....................................................................86
2.15.7 Notes for multi cycle machining ............................................................................89
2.16 Threading Cutting ...........................................................................................................90
2.16.1 Thread Cutting with Constant Lead G32...............................................................90
2.16.2 Thread cutting with variable lead G34 ..................................................................93
2.16.3 Thread cutting cycle G92......................................................................................95
2.16.4 Multiple thread cutting cycle G76..........................................................................97
2.17 Constant Surface Speed Control G96, Constant Rotational Speed Control G97.....103
2.18 Feedrate per Minute G98, Feedrate per Rev G99 ...................................................105
2.19 Drilling/Boring Fixed Cycle Command ..........................................................................106
2.19.1 End drilling cycle G83 /side drilling cycle G87 ....................................................107
2.19.2 End Boring CycleG85 / Side Boring Cycle G89 .................................................. 111
2.19.3 Cancelling Drilling/Boring G80............................................................................ 112
2.19.4 Notes for Drilling/Boring Cycle............................................................................ 112
2.20 Tapping Cycle Command.............................................................................................. 112
2.20.1 Tapping Mode ..................................................................................................... 113
2.20.2 End Rigid Tapping Cycle (G84) / Side Rigid Tapping Cycle (G88)...................... 114
2.20.3 End Common Tapping Cycle (G84) /Side Common Tapping Cycle (G88) ..........120
2.21 Automatic Chamfering Function....................................................................................123
2.22 Macro Command ..........................................................................................................126
2.22.1 Variable...............................................................................................................126
2.22.2 System variable ..................................................................................................127
2.22.3 Operation and jump command ...........................................................................131
2.22.4 Macro program statement and NC statement.....................................................136
2.22.5 Macro program call.............................................................................................136
Chapter
Ⅲ
MSTF Commands.....................................................................................................139
3.1 M (Miscellaneous Function)............................................................................................139
3.1.1 End of program M02.............................................................................................139