Low voltage point welding machine

Abstract

The invention discloses a low voltage point welding machine. The low voltage point welding machine comprises a first electrolysis capacitor, a second electrolysis capacitor, a third electrolysis capacitor, a fourth electrolysis capacitor, a first resistor, a second resistor, a third resistor, a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a first thermistor, a second thermistor, a third thermistor, a fourth thermistor, a fusible resistor, a first diode, a second diode, a third diode, a fourth diode, and a transformer. When the power supply is connected and the low voltage point welding machine is not used, the electrolysis capacitors are charged, and the light-emitting diodes are lighten up. During welding, the electrolysis capacitors discharge, the light-emitting diodes are turned off, and the charge and discharge durations are very short. The low voltage point welding machine is applicable to welding small and intermediate work pieces; and the low voltage point welding machine has the advantages of secure in welded points as well as high in safety. The whole circuit is simple in structure. Few elements are used. The low voltage point welding machine is low in manufacturing cost, high in cost performance, convenient for mass production, wide in application range, and has a value to be popularized.

Description

technical field [0001] The invention relates to an electric welding machine, in particular to a low-voltage spot welding machine. Background technique [0002] The spot welding machine is widely used in the production field. It does not use flux and solder when welding, and it is very convenient to weld directly. When welding, a strong current flows through a small area to convert electrical energy into heat energy. At the moment of welding, two pieces The metals are firmly welded together to form a metal alloy that is not easily oxidized. At the same time, the solder joints after welding are small, reliable and high-temperature resistant. Because it works under high voltage conditions, it has poor safety, is not easy to operate, and has a high price, which is not conducive to popularization. Contents of the invention [0003] The purpose of the present invention is to provide a low-pressure spot welding machine in order to solve the above problems. [0004] The present ...

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Problems solved by technology

[0002] The spot welding machine is widely used in the production field. It does not use flux and solder when welding, and it is very convenient to weld directly. When welding, a strong current flows through a small area to convert electrical energy into heat energy. At the moment of welding, two pieces The metals are firmly welded together to form a metal alloy that is not easily oxidized. At the same time, the solder joints after welding are small, reliable and high-temperature resistant. Because it works under high voltage conditions, it is less safe, inconvenient to operate, and the price is high, which is not conducive to popularization

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