Template 7: left-hand tapping cycle, Chapter 31 – Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set User Manual

Page 838

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Using Transfer Line Cycles

Chapter 31

31-36

Template 7: Left-Hand Tapping Cycle

Letter

Paramacro

Label

Description

G

500

G90/91

G-codes G90 or G91 for absolute or incremental modes. At this time only absolute
mode, G90, is available.

X,Y

501, 502

HOLE POSITION X, Y

The location the tool moves to before it begins a tapping operation.

X

503

DEPTH TO TAP

The location where the tool completes the tap into the part.

R

504

CLEAR POSITION

The location that the tool retracts to after an operation. It is completely free of the
part. This also known as the R plane.

X,Y

505, 506

RETURN POSITION X, Y

The location where the controls starts and stops a cycle.

F

507

FEEDRATE

The feedrate for tapping operations, and all moves represented by the solid lines in
the QuickView screens.

P

508

DWELL TIME

The amount of time the axis pauses before it retracts from the hole; measured in
seconds.

X

509

TOOL CHANGE POSITION

The location the control moves to so that a tool change may be performed.

S

510

SPINDLE SPEED

The speed of the spindle. Measured in revolutions per minute.

Required entry

Optional entry

Figure 31.10

Left-Hand Tapping Cycle

Spindle rotation direction is
reversed at hole bottom

1

2

3

4

5

6

7

Cutting feedrate

Maximum cutting feedrate

R

Depth of Hole

Clear Position

Return
Position

Hole Position

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