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Electric welding machine capable of being automatically started and stopped

An electric welding machine and automatic technology, applied in arc welding equipment, welding equipment, welding equipment and other directions, can solve the problems of easy burnout of transformers, reduce the failure rate of welding machines, etc., and achieve the effect of reducing power consumption and air transportation time.

Inactive Publication Date: 2015-03-18
张丹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem that the transformer of the traditional welding machine is easy to burn out by setting an electric welding machine that can be automatically started and stopped, so as to achieve the purpose of reducing the failure rate of the welding machine

Method used

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  • Electric welding machine capable of being automatically started and stopped
  • Electric welding machine capable of being automatically started and stopped

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Experimental program
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Effect test

Embodiment 1

[0020] like figure 1 As shown, this embodiment includes a transformer, a controller, a circulating cooling water tank, a water-cooling cable and welding tongs. The transformer is connected to the circulating cooling water tank and the controller respectively. The water-cooling cable passes through the circulating cooling water tank. connected, and also includes a water flow preventer arranged in the circulating cooling water tank, the water flow preventer is connected with the controller, and the top of the transformer is provided with a cooling fan. The equipment is powered on, and the water inlet switch on the circulating cooling water tank is turned on. When the cooling circulating water passes through the water flow detector, the controller is turned on to let the equipment enter the working state; when the cooling water switch is turned off, no cooling water flows through the water flow. If the circulating cooling water tank suddenly cuts off water during work, the water...

Embodiment 2

[0024] like figure 1 As shown, in this embodiment, on the basis of Embodiment 1, the water flow flood control device includes a temperature sensor, a water level sensor, an alarm and a control loop, and the control loop is connected to the temperature sensor, the water level sensor, and the alarm respectively. The control loop is connected with the controller. The control loop is the command center of the water flow preventer. When the water level sensor detects that the water level in the circulating cooling water tank is low, it will transmit a signal to the control loop, and the control loop will control the alarm to sound a buzzer; if the water level in the circulating cooling water tank When the temperature rises sharply due to lack of water, the temperature sensor will transmit the signal to the controller through the control loop, and the controller will directly cut off the power supply to prevent the water-cooled cable from being burned out due to excessive temperatu...

Embodiment 3

[0026] like figure 1As shown, on the basis of Embodiment 1, this embodiment also includes an electric shock prevention device arranged on the input end of the transformer. When a welding machine that can automatically start and stop is empty, the voltage of the DC welding machine is 55-90V, and the voltage of the AC welding machine is 60-80V, both of which exceed the safe voltage value, but because the voltage is not very high, it is often ignored. In particular, welders have a relatively high risk of electric contact. According to the calculation, when the no-load voltage of the welding machine is 70V, the human body is operating in a humid place, and the protective equipment is not properly worn. At this time, the human body resistance RR is about 1600Ω. If the welder's hand touches the jaws, the current IR = V / RR=70 / 1600=0.044A=44MA, under the action of this current, the welder’s hand will convulse, causing ventricular fibrillation. If the rescue is not timely, there will...

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Abstract

The invention discloses an electric welding machine capable of being automatically started and stopped. The electric welding machine comprises a transformer, a controller, a circulation cooling water tank, a water-cooling cable and a pair of welding tongs, wherein the transformer is respectively connected with the circulation cooling water tank and the controller; the water-cooling cable penetrates through the circulation cooling water tank; the pair of welding tongs is connected with the transformer by virtue of the water-cooling cable; the circulation cooling water tank is internally provided with a waterflow flood prevention device which is connected with the controller; the top of the transformer is also provided with a radiator fan; the electric welding machine also comprises an automatic on-off circuit. When the electric welding machine is in operation, the transformer also generates a lot of heat, and the arranged radiator fan can take away the heat generated by the transformer so as to ensure that operation of the transformer is stably performed; due to the arranged automatic on-off circuit, idle operation time of the electric welding machine can be reduced, and the electricity consumption can be reduced; when the electric welding machine has no load, the automatic on-off circuit can control the automatic power-off of the electric welding machine; during in welding, a welding rod is contacted with a weldment, a switch in the automatic on-off circuit is turned on to supply current to the electric welding machine so as to achieve the purpose of saving energy.

Description

technical field [0001] The invention relates to the field of electric welding, in particular to an electric welding machine that can be started and stopped automatically. Background technique [0002] In the production process of automobile and other panel products, welding machines and welding robots have become the key equipment to improve production efficiency and ensure product quality. According to the working characteristics of the equipment, taking corresponding protection measures can ensure the safety and energy saving of the equipment Effect. The welding machine has greatly improved the productivity of the enterprise, and the product competitiveness has also been greatly improved. However, in the process of using, many shortcomings have also been found. The reason is that the service life of the water cable of this equipment is too short, the damage is too fast, and the replacement frequency is too high. This not only causes the equipment to be shut down frequent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10B23K9/00B23K9/32B23K37/00
CPCB23K9/10B23K9/00B23K9/321B23K37/003
Inventor 张丹
Owner 张丹
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