Alarm system of bench electric welding machine

Abstract

The invention relates to the technical field of electric welding machine protection, in particular to an alarm system of a bench electric welding machine. The alarm system of the bench electric welding machine comprises a machine body; a hydraulic rod connected with a folding sheet is arranged on the inner wall of the machine body; a connection rope is connected with a protective cover matched with electrode holders; grooves are formed in the side walls of the electrode holders; springs are arranged in the grooves; and a clamping groove matched with a distance sensor is formed in the side wallof the protective cover. The hydraulic rod drives the folding sheet to stretch out and draw back to prevent fragments from entering the machine body, the weld joint width, weld reinforcement and weldleg size are monitored through the distance sensor, a distance signal is converted into a voltage signal to be transmitted to a comparer, a controller controls an alarm device to give out an alarm, shutdown is carried out through an emergency stop switch, and welding dimension precision is ensured; the electrode holders can be protected against damage through the protective cover; and through arrangement of the springs, the clamping groove and the grooves, assembly and disassembly are facilitated.

Description

technical field [0001] The invention relates to the technical field of electric welding machine protection, in particular to a desktop electric welding machine alarm system. Background technique [0002] The desktop electric welding machine uses the high-temperature arc generated when the positive and negative poles are short-circuited instantly to melt the solder on the electrode and the material to be welded, so as to combine the objects to be contacted. Its structure is very simple, which is a high-power transformer. [0003] During the operation and use of the electric welding machine, heat dissipation is usually carried out through the radiator and the cooling vent, because metal debris will be generated during the welding process, and some metal debris will enter the electric welding machine through the cooling opening, and Due to the error of human operation, the weld width, reinforcement and weld leg size are often too large or too small, too small, the strength is r...

AI Technical Summary

Problems solved by technology

[0003] During the operation and use of the electric welding machine, heat dissipation is usually carried out through the radiator and the cooling vent, because metal debris will be generated during the welding process, and some metal debris will enter the electric welding machine through the cooling opening, and Due to the error of human operation, the weld width, reinforcement and weld leg size are often too large or too small, too small, the strength is reduced, the size is too large, the stress is concentrated, and the fatigue strength is reduced. The protective measures of the welding tongs, long-term exposure of the welding tongs will cause corrosion or damage, so we propose a desktop welding machine alarm system

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