Owner's manual

Using Transfer Line Cycles
Chapter 31
31-37
Template 8: Left-Hand Solid Tapping Cycle
Letter Paramacro Label Descriptio n
G 500
G90/91 G-codes G90or G91 for absoluteorincrementalmodes. Atthis time onlyabsolute
mode,G90,is available.
X,Y 501, 502
HOLE POSITION X, Y The locationthetoolmovesto before itbegins atapping operation.
X 503
DEPTH TO TAP The locationwherethetoolcompletesthetapinto the part.
R 504
CLEAR POSITION T he location thatthetool retractstoafteran operation.Itiscompletelyfree ofthe part.
Thisalso known astheR plane.
X,Y 505, 506
RETURN POSITION X,Y The locationwhere the controls starts and stops a cycle.
S 507
SPINDLE SPEED The speed ofthe spindle.Measuredin revolutions per minute.
F 508
TAP LEAD The threadlead along the drilling axis.This valuegives thecycles itsfeedrate.
Interpretedas inchesperrevolution ormillimeters perrevolution,depending onifEnglish
ormetricmodeisactive.
X 509
TOOL CHANGEPOSITION The locationthecontrol movestoso thata tool change maybeperformed.
Q 510
ORIENT ANGLE The anglethe spindleorientstobefore starting the tap.
D 511
TAP-OUT SPEED The speed ofthe spindleas thetapreturnstotheR plane.
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Figure 31.11
G74.1: Left-Hand Solid-Tapping Cycle
R
Spindle rotation direction is
reversed at hole bottom
1
2
3
4 5
6
Cutting feedrate
Maximum cutting feedrate
Depth of Hole
Clear Position
Return
Position
Hole Position
7