Automatic residual water removing device based on electrode cap replacing

Abstract

The invention relates to an automatic residual water removing device based on electrode cap replacing. The automatic residual water removing device comprises a water inlet pipe, a water outlet pipe, aback sucking pipeline, a first check valve and a second check valve. A water outlet of the water inlet pipe communicates with a water inlet of a welding gun cooling pipeline. A water inlet of the water outlet pipe communicates with a water outlet of the welding gun cooling pipeline. The first check valve and the second check valve are arranged on the water inlet pipe and the water outlet pipe correspondingly. The back sucking pipeline comprises a tee joint, a nozzle, a first back sucking pipe and a third back sucking pipe. The nozzle is installed at the inlet position of a horizontal pipe ofthe tee joint, and the two ends of the first back sucking pipe communicate with a water inlet of the nozzle and the position, at a water outlet of the first check valve, of the water inlet pipe correspondingly. The two ends of the third back sucking pipe communicate with an outlet of a perpendicular pipe of the tee joint and the position, at a water outlet of the second check valve, of the water outlet pipe correspondingly. Due to the fact that after the nozzle is used for spraying water out, a negative-pressure area is formed on the periphery of a water spraying opening of the nozzle to suckresidual water in the welding gun cooling pipeline, the phenomenon that the residual water flows out, and consequently the periphery or an automatic electrode cap demounting device is soaked by waterdrops is avoided.

Description

technical field [0001] The invention relates to an automatic cleaning device for residual water in electrode cap replacement. Background technique [0002] The welding process is the process of generating an arc discharge between two electrodes, and using the heat of the arc to melt the metal to join the two weldments. The two terminals of the power input and output on the welding equipment are called electrodes. Welding electrodes may be used in Resistance welding. Resistance welding technology is widely used in industry, an example of such application is spot welding of car body. In that particular application, a welding gun equipped with a pair of cooperating electrodes can be stepped on the welding path. Every time you take a step, the pair of electrodes are close to the opposite sides of the workpiece to be welded, and a current passes between the two electrodes. The electrical resistance at the interface between the workpieces tends to cause localized heating to oc...

AI Technical Summary

Problems solved by technology

[0003] At present, the traditional spot welding robot is composed of robot body, computer control system and spot welding system. The spot welding system needs to use water to cool the electrodes of the spot welding system. When the electrode cap is replaced, the cooling circulating water will be turned off, but there will still be residual cooling water in the welding torch. Due to gravity, the cooling water will flow out from the electrode cap, causing the surrounding or electrode cap to The automatic disassembly device is soaked by water droplets, which accelerates its corrosion, and even leads to safety hazards in serious cases

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