Welding machine automatic switching control circuit

Abstract

The invention discloses an automatic switchover control circuit of a welding machine. The automatic switchover control circuit comprises an automatic switchover circuit, and the automatic switchover circuit is connected with a near-control circuit and a remote-control circuit; the automatic switchover circuit, the near-control circuit and the remote-control circuit are connected with a power supply of the welding machine; the automatic switchover circuit is used for automatically switching connection of the power supply of the welding machine and the near-control circuit into connection of the power supply of the welding machine and the remote-control circuit according to remote-control trigger signals. The automatic switchover circuit is formed by a first relay, a fifth resistor and a first diode and further comprises a relay circuit and a comparator circuit. The automatic switchover control circuit is simple, cost of components used for the automatic switchover control circuit is low, an automatic switchover function is achieved through near control and remote control, the near control and remote control automatic switching function can be effectively achieved, a client can operate the automatic switchover control circuit conveniently, misoperations of the client are avoided, the quality is reliable, the utilization rate of panel components is high due to distribution of the panel components, and a panel is smaller and more attractive.

Description

technical field [0001] The invention relates to the technical field of welding machine control, in particular to a welding machine automatic switching control circuit. Background technique [0002] Welding machine is an important equipment in the field of production and processing. As an indispensable and important tool in the field of mechanical manufacturing, it spans multiple disciplines such as welding technology, electric arc and power electronics. Welding machines need to work under high current. Whether it is safety, From the perspective of convenient operation, remote control is very necessary and very common in practice; however, according to specific needs, close control is also required in short distances to improve efficiency. [0003] The so-called close control of the welding machine is to control the working state of the welding machine directly through the switch set on the operation panel of the welding machine; the so-called remote control of the welding ma...

AI Technical Summary

Problems solved by technology

Today, with the development of science and technology, the diversification and complexity of welding have put forward requirements for the convenience of switching between the far / near control of the welding machine, and the existing welding machine control technology, remote control and close control Does not achieve the effect of automatic switching

In the case that remote control and close control cannot be switched automatically, a separate switch must be added on the panel of the welding machine, and the operator can manually switch, which will not only occupy the panel space of the welding machine, but also affect the layout of the panel, etc. Importantly, there are potential safety hazards for misuse

Images