（1） Installation procedure:
1. The ultrasonic spot welding machine shall be installed on a solid and horizontal workbench. A space larger than 150mm shall be reserved behind the machine to facilitate ventilation and heat dissipation.
2. To ensure safe operation, the machine must be reliably grounded, and the resistance to ground must be less than 4 ohms.
3. Insert the two ends of the control wire into the tripod socket behind the welder, and tighten the nut.
4. Place the selector switch in the MANUAL position.
5. Lock the four lifting screws to fix the ultrasonic vibrating head, but do not use excessive force to avoid tooth slip.
6. Wipe the contact surface between the upper welding die and the ultrasonic vibration head, use screws to connect them, and use a special wrench to lock them with a locking force of 25 N/m.
7. Connect the air pipe of the external air source to the air filter of the welding machine.
8. Acoustic wave inspection procedure:
In order to give full play to the best use effect of the ultrasonic spot welding machine, maintain the performance of the welding machine and ensure safe production, every time the machine is used or the welding mold is replaced, the vibration generation degree of the vibration system and the vibration system of the welding machine must be adjusted, so this acoustic wave detection procedure is very important.
A. Before testing, the upper welding die and ultrasonic vibration head must be tightly locked. During testing, the upper welding die must not contact the workpiece.
B. Close the power switch, and the power indicator is on
C. Open the door leaf of the side cover plate.
D. Press the selector switch to the sound wave detection gear position and observe the indicated value of the amplitude meter. The sound wave detection switch cannot be pressed continuously for more than 3 seconds each time.
E. Rotate the sound wave detection screw clockwise and counterclockwise to make the pointer of the amplitude meter at the lowest scale value. Note: The pointer of the amplitude meter can be adjusted below the 1.2 (or 100) scale value, and ensure that it is the lowest scale position. The vibration generation system and vibration system of the welding machine have the best spectrum vibration.
[Note]:
1. Adjust the sound wave selection screw, and the pointer of the amplitude meter will swing left and right, but it does not indicate the power output, but only the degree of resonance between the vibration generation system and the vibration system. The smaller the indicated scale value, the better the degree of resonance.
2. When the amplitude meter vibrates at no load, it indicates the degree of resonance, and when the load vibrates, it indicates the output energy.
3. Before welding, acoustic wave detection must be carried out to ensure the resonance between the vibration generation system and the vibration system.
4. After replacing the welding die, remember to do the acoustic wave testing procedure.
5. When adjusting, if the overload indicator lights up, immediately release the sound wave inspection button. After about 1 second, turn the sound wave adjusting screw for sound wave selection adjustment
6. Correct tuning is very important. If it can not be adjusted to the normal state and can not meet the requirements of item 5 of the acoustic wave detection procedure, please send it for repair immediately. Do not use it reluctantly to avoid expanding the fault.
7. The working air pressure shall not exceed 5kg/cm
8. Mold calibration procedure:
In order to achieve the maximum energy of the machine, the distance between the upper welding die and the workpiece should be as short as possible, but the necessary distance should still be left to facilitate the placement and removal of the workpiece. The maximum stroke of the lifting table is 75 mm, so before calibration, the upper welding die will not contact the workpiece when determining the maximum stroke.
a) Set the selector switch to the manual position, adjust the pressure adjustment knob to make the pressure gauge indicate about 0.2Mpa (about the minimum pressure that can make the welding head rise)
b) Place the lower welding die on the worktable, and then place the workpiece in the lower welding die.
c) Loosen the locking rocker of the machine body, turn the lifting handwheel to make the distance between the upper welding die and the workpiece more than 75mm, and tighten the locking rocker.
d) Press the two lowering buttons with both hands to lower the upper welding die.
e) Loosen the set screws of the four vibrators, rotate the upper welding die to fit the workpiece, and then lock the set screws of the four vibrators.
f) Loosen the stop screw and turn the stop screw (M12x1) to make it contact with the lifting table. Press the emergency rising button to raise the upper welding die, and then turn the stop screw about 7mm.
g) Press the two lowering buttons with both hands to lower the upper welding die. Loosen the locking rocker of the machine body, rotate the lifting handwheel, slowly lower the upper welding die, and move the lower welding die at the same time, so that the working face and the upper welding die contact evenly, and lock the machine body and the rocker.
h) Press the emergency rising button to raise the welding head, rotate the stop screw, and drop it by about 2mm. The specific size depends on the workpiece, so that the stop screw is disconnected from the lifting during operation. However, when there is no workpiece in the lower welding die, the stop screw can prevent the upper welding die from touching the lower welding die and protect the parts from damage
i) Fix the lower welding die on the workbench with the screw press plate

j) The above operations are the calibration steps For more accurate mold calibration, it is necessary to observe and adjust at the same time during the test welding. You can use carbon paper between the workpiece and the upper welding. Observe the indentation on the white paper after the upper welding mold is pressed down. According to the depth of the indentation, use a thin gasket to adjust the bottom of the welding mold, so that the welding surface of the workpiece is pressed evenly