Rigid tapping is a common machining function. During the tapping process, due to the workpiece clamping accuracy or machining program writing, the phenomenon of broken tapers is common.

Function introduction:
The rigid tapping retraction function (the function is named "rigid tapping return" in the function manual) can be used to reset the operation and interrupt the rigid tapping. Through the PMC signal or instruction, the rigid tapping retraction action is executed to retract the tapping axis to the R point position. The retraction process still maintains the most recent rigid tapping synchronous position relationship. It should be noted that this function is an optional function on FANUC Oi-TD and 31i systems. The Oi-TD system function diagnosis number is 1174#2, and the 31i system diagnosis number is 1163#6. The above diagnosis number can be used to confirm whether the system has this function.

Function implementation: The rigid tapping retraction function can be triggered by the PMC signal or executed by the instruction. It can be switched by using parameters.

The FANUC tapping interruption processing method is as follows:
Example: During the program running, press reset or emergency stop, and an alarm will appear
2075. TAPPING THE INTERRUPT

Rigid tapping retraction parameters:
No.5202#1 is set to 1, select G30 tapping retraction
0: Execute address signal G62.6 tapping retraction
1: Execute G30 tapping retraction of G code

① After the system is powered off during tapping, power it on again.

②In MDI mode (or automatic mode), type:
G30P99M29Sxxx;
xxx is the spindle speed during tapping before power off.
③The system automatically generates and executes the tapping retraction action.

When No5202#1 is set to 0, the address signal G62.6 is executed for tapping retraction. Set K5.5 to 1, and then press F2 (safety door)/tapping retraction button in MDI mode to realize the tapping retraction function. A prompt alarm will appear. 2076. TAPPING THE FALLBACKT OPEN K5.5=1 F2 K5.5 is set to 1, and K5.5 is automatically set to 0 after tapping returns, and the alarm disappears.