2.5.4.1. Servo-gun
2.5.4.1. Servo-gun
The gun search function of servo-gun is initially set to reflect the share of the contribution of fixed tip and moving tip to the total tip consumption by 50% each. Therefore, the consumption can be calculated by using gun search 1 only. Refer to gun search 2 descriptions for calculating consumption of fixed tip and moving tip.
The measuring of the moving tip consumption with gun search 2 operation will be determined according to the value of the 『moving tip consumption/total consumption(%)』item. (Refer to 3.5.1 Servo-gun parameter)
If the value of 『moving tip consumption/total consumption(%)』 is “0”, it is necessary to operate gun search 2; if the set value is not “0”, total consumption owing to gun search 1 operation will be divided according to the set ratio.
(1) Gun search1
This measures the total tip consumption by squeezing the fixed tip with the moving tip.
S1 MOVE P,S=60%,A=1,T=1 ‘Move to the location of gun search 1 operation GUNSEA GN=1,SE=1,PR=100,SP=10 ‘Gun search 1 operation END |
Search target location = Axis constant location + Maximum moving tip consumption + Maximum fixed tip consumption
Figure 2.2 Gun search 1
① Move to the record location of step.
② Squeeze the fixed tip using the moving tip until the setting of squeeze force is achieved.
③ Measure total tip consumption, and execute opening when squeeze alignment is detected.
Previous tip consumption = Squeeze alignment detecting location - Gun search 1 reference location
④ Open up the record location of step.
⑤ Spilt total consumption measured in the ratio of moving tip and fixed tip as shown in the picture below, when operating Gun Search 1 only. (Default is 50:50)
Figure 2.3 Calculation of consumption using only Gun Search 1
(2) Gun search 2
This measures the moving tip consumption. It can be measured using a method based on squeeze force, or a method based on an external signal.
l Method based on squeeze force
Squeeze the calibration jig using the moving tip, and measure the moving tip consumption.
S1 MOVE P,S=60%,A=1,T=1 ‘Move to the location of gun search 1 operation GUNSEA GN=1,SE=1,PR=100,SP=10 ‘Gun search 1 operation S2 MOVE P,S=60%,A=1,T=1 ‘Move to the location of gun search 1 operation GUNSEA GN=1,SE=2,PR=100,SP=10 ‘Gun search 2 operation END |
Search target location = Axis constant location + Maximum moving tip consumption + Maximum fixed tip consumption
Figure 2.4 Gun search 2 based on squeeze force
① Move to the record location of step.
② Squeeze the search calibration jig using a moving tip until squeeze force is set.
③ Measure the moving tip consumption, and execute opening operation when squeeze alignment is detected.
Moving tip consumption = Squeeze alignment detecting location – Reference location of Gun Search 2 based on squeeze force
Fixed tip consumption = Total consumption detected by Gun Search1 - consumption of moving tip
④ When opening is complete, the consumption of the moving tip and the fixed tip will be updated.
l Method based on an external signal
Measure the moving tip consumption of by moving the moving tip to a location where a sensor is placed, and detecting the sensor input.
S1 MOVE P,S=60%,A=1,T=1 ‘Move to the location of gun search 1 operation GUNSEA GN=1,SE=1,PR=100,SP=10 ‘Gun search 1 operation S2 MOVE P,S=60%,A=1,T=1 ‘Move to the location of gun search 2 operation IGUNSEA GN=1,SP=10.0,DI=1 ‘Gun search 2 operation END |
Figure 2.5 External signal input Gun Search2
① Move to the record location of step.
② The moving tip will approach in search speed to switch the phototube contact signal.
③ Measure the moving tip consumption, and execute opening when a signal is detected in the phototube.
Moving tip consumption = External signal detecting location – Reference location of Gun Search 2 based on external signal input
Fixed tip consumption = Total consumption detected by Gun Search 1 - Moving tip consumption
④ When opening is complete, the consumption of the moving tip and the fixed tip will be updated.