1 Spot Welding Application Using a Motor Gun
1.4 System Setting (Motor Gun)
1-46
–In case of SVGUNCL with TWC-A/TWC-AE tag, the gun closes
by the set speed in the “5. FINAL TOUCH SPEED” from the
beginning until it detects the contact to the work.
(2) SVGUNCL with TWC-B/TWC-BE tag.
Reduces the speed from the position where it is away by the set-
ting value towards the gun open direction from the last movable tip
position detected by the movable tip detecting motion of the wear
detection. (Refer to chapter 1.12.2.2 Movable Side Tip Detec-
tion.)
When the movable tip detecting motion of the wear detection has
not been executed, the gun closes by the set touch speed in “5.
FINAL TOUCH SPEED” from the beginning of the SVGUNCL until
it detects the contact to the work.
(3) SVSPOTMOV
The fixed tip and the movable tip move to the teaching position of
the SVSPOTMOV (the position where the fixed tip and movable tip
touch the work) by the specified speed in the SVSPOTMOV
instruction. After that, the gus executes the touch motion by the
speed set in the “5.FINAL TOUCH SPEED”.
5. FINAL TOUCH SPEED
When operating the pressure instruction (SVSPOT, SVGUNCL,
SVSPOTMOV), the gun starts the closing motion by the touch speed set
in the pressure file. However, before contacting the work, the speed is
reduced to the set speed in this item according to “4. FINAL TOUCH
SPEED START POSITION”.
If the touch speed set in the pressure file is smaller than this setting, the
gun closes by the touch speed in the pressure file until it touches the
work.
When setting “0”, the final touch speed becomes 5%.
6. TOUCH PRESSURE
Set the detection pressure for the touch detection (when the gun detects
the contact to the work).
After the touch detection, the gun executes the pressure by the set
pressure in the pressure file.
Also, when “0” is set in the touch pressure, the touch pressure becomes
600N.
7. ALLOWABLE TOUCH RANGE (MOVABLE SIDE)
8. ALLOWABLE TOUCH RANGE (FIXED SIDE)
Set the allowable range of the touch detection position for the both mov-
able side (gun open side) and the fixed side (gun close side).
Enables to detect an error, such as the tips installing error, by monitor-
ing the allowable touch range of the touch detection position in the each
operation of the pressure instruction (SVSPOT, SVGUNCL, SVSPOT-
MOV).
If the difference between the touch reference position and the touch
detection position when executing the pressure instruction is not within
the range, an alarm “TOUCH DETECTION RANGE OVER” occurs.
When setting “0”, the monitoring for the allowance touch range
becomes invalid.
The touch reference position is described below according to the each
pressure instruction to be used.
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