
4.AUTOMATIC OPERATION OPERATION B-63944EN/02
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4.8.6 Operation Procedure for a Canned Cycle for Drilling
Explanation
- Retract
When the TOOL WITHDRAW switch is turned on during a canned
cycle for drilling (abbreviated as a canned cycle below), retraction is
performed depending on the cycle operation being executed at that
time.
Operation 1: Positioning to a hole position
Operation 2: Rapid traverse to point R
Operation 3: Hole machining
Operation 4: Operation at the bottom of the hole
Operation 5: Retraction to point R
Operation 6: Rapid traverse to the initial point
Initial point
Point R
Operation 1
Operation 2
Operation 6
Operation 3 Operation 5
Operation 4
1 During operation 1, the tool moves by the retraction distance
specified in G10.6 in the same way as for ordinary retraction.
2 During operation 2, the tool stops operation 2, moves to the
initial point, and stops.
3 During operation 3, the tool stops operation 3, executes cycle
operations 4, 5, and 6 from that position, and stops at the initial
point.
4 During operation 4, 5, or 6, the tool continues the operation and
stops at the initial point.
When the TOOL WITHDRAW switch is turned on during
operation 2 to 6, the tool does not move according to the
retraction specified in G10.6. After the TOOL WITHDRAW
switch is turned on and the tool moves to the initial point,
however, the tool withdrawal mode is set.
When the second or subsequent canned cycle is being executed
and the TOOL WITHDRAW switch is turned on during
operation 2 to 6, the retraction position differs depending on G98
(return to initial level) or G99 (return to point R level).
- G98 (return to initial level): The tool moves to the initial
level.
- G99 (return to point R level):The tool moves to the point R
level.
5 During operation 2 to 6, the tool also moves to the initial point
and stops when the TOOL WITHDRAW switch is turned on
without the G10.6 command specified.