How do you use the switch power supply and the new capacitor discharge stud welding machine with single-chip microcomputer control?

Abstract: the paper introduces the RSR2 capacitor discharge stud welding machine. The welding machine uses switch power to charge the capacitor by constant current, and cancels the charging current limiting resistor; Program controlled by single-chip microcomputer; Liquid crystal screen displays welding parameter and the actual data. The welding machine has the advantages of high precision, simple control, stability, and reliability.

Keywords: switching power supply; Constant current charging; Single-chip microcomputer; Capacitance discharge stud welding machine

Type 1 rsr2 capacitor discharge stud welding machine

Compared with RSR1 type welding machine, has the following major improvements:

(1) the switch power supply, replace the power frequency transformer T1 for constant current charging capacitor;

(2) cancel the charging current limiting resistor R2;

(3) the sequential control by single-chip microcomputer, using liquid crystal display welding parameters;

(4) the safety discharge resistor installed on the control panel.

1.1 circuit design

1.1.1 main circuit

1.1.2 control circuit

(1) the PIC single chip microcomputer

(2) FYD liquid crystal display module

1.2 the software design

2 application characteristics

RSR2 series capacitor discharge stud welding machine has the following characteristics

(1) the use of special technology, cancel the capacitance charging current limiting resistor in a circuit, energy saving more than 500 w, not only saves energy, but also greatly reduce the internal temperature of welding machine, improve the reliability of the welding machine.

(2) USES the constant current charging technology, charging speed, high efficiency.

(3) using a switching power supply (i.e., inverter technology), reduce the volume and weight of the welding machine. Such as RSR2-2500/3150 from 39 kg respectively, 42 kg down to 18 kg and 20 kg.

(4) the whole process of welding by the single-chip microcomputer to control the welding quality, greatly simplifying the circuit, ensure the welding quality, improve the reliability of the welding machine.

Liquid crystal display (5) the welding parameters, welding process be clear at a glance, clear and beautiful.

(6) using multiple protection, ensure the safety of the welding machine is used.

RSR2 series of successful development of high-tech products and batch production, export to Australia, marked our country independent innovation research and development of capacitor discharge technology level and reliability of stud welding machine has entered the world advanced level.

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