KR200262882Y1 - Submerged Arc Auto Welding Machine with Two Electrode - Google Patents

Abstract

In this design, two electrodes for pre-welding and post-welding are arranged in a line with respect to the traveling direction of the carrier, so that the welding time can be shortened, and the control panel can be concentrated in one place for convenience of operation. The carrier 10 is driven by a drive motor to be movable on the rail, and two wire reels 20 for supplying a welding wire to the upper part of the carrier. ), Two wire supply parts 40 provided with a wire supply motor for supplying the wires wound on each wire reel to the electrode 30, and flux supply and recovery for supplying flux to the electrode and collecting it again after welding. In the two-electrode automatic welding machine comprising a portion 50, the carrier drive motor and the wire ball inside the one reel A control unit (C) for controlling the power supply to the motor and the welding electrode is provided, and a control panel (P) having a power switch, a lamp, a voltage and current meter, a voltage and a current control switch, and the like disposed on the front side thereof. The installation allows two welders to be operated effectively from a single control panel.

Description

Submerged Arc Auto Welding Machine with Two Electrode}

The present invention relates to a two-electrode automatic welding machine, in particular, by combining the control panel for controlling two welding machines using AC-AC or AC-DC in one place to secure the convenience of the welding machine operation to the operator It is possible to, and to reduce the weight of the carrier for transport and extending the movement handle on one side of the carrier to facilitate the transport and movement of the welder.

Heavy steel plates, high-strength chromium-molybdenum steel, stainless steel, etc., which are used for manufacturing large steel frame in shipbuilding or construction, bridges, automobiles, or pressure vessels, are usually joined by arc welding. Arc welding method of the current is mostly automated by the automatic welding machine, compared to the previous manual work to improve the work efficiency and work speed and to obtain a uniform quality of the weld.

On the other hand, in the automatic welding machine used in the above fields, two electrodes are arranged in a line in front and rear with respect to the traveling direction of the carrier for doubling the welding time and the welding performance, so that two arc welding can be performed simultaneously at a time. The automatic welding machine has been developed and used in practice. The conventional two-electrode arc welding machine has a wire for supplying a welding wire for each electrode, that is, two welding machines, on a transport carrier that can move on a rail. Reel and wire feeder, hopper for supplying flux and device for collecting used flux, voltage and current of each welder and wire feed rate and carrier As control panels for adjusting the moving speed were separately provided, the structure was complicated and bulky. Not only was there a problem that the overall weight was large, but also the control panel for voltage and current control of each welding machine was distributed, so that it was difficult for the operator to operate the control panel promptly according to the welding process. .

The present invention has been devised to solve the above-mentioned conventional problems, and the object of the present invention is to provide a two-electrode automatic welding machine capable of miniaturization and light weight by reducing the volume and weight of the two-electrode automatic welding machine, and is distributed. By centralizing the control panel of each welding machine in one place to improve the convenience of operation of the automatic welding machine.

To achieve this object, the present invention provides a carrier with drive wheels driven by a drive motor to move on a rail, two wire reels for supplying a welding wire to the upper part of the carrier, and wound around each wire reel. In the two-electrode automatic welding machine comprising two wire supply unit having a wire supply motor for supplying the wire to the electrode, and a flux supply and recovery unit for supplying the flux to the electrode and collecting again after welding, the one side Inside the wire reel, a control unit for controlling the power supply to the carrier drive motor, the wire supply motor, and the electrode is provided. Control panel is installed to effectively operate two welders from one control panel And the movable handle is extended on one side of the carrier to facilitate movement, and the two wire reels are rotatably attached by clamps on the support post of the carrier to be arranged in parallel in the front and rear directions. A two-electrode automatic welding machine is provided.

1 is an external perspective view of a two-electrode automatic welding machine according to the present invention,

2 is a front view of a two-electrode automatic welding machine according to the present invention,

3 is a side view of a two-electrode automatic welding machine according to the present invention,

Figure 4 is an enlarged view of the control panel of the two-electrode automatic welding machine according to the present invention,

5 is a circuit diagram of an alternating current two-electrode welding machine according to the present invention;

6 is a circuit diagram of a direct current type two-electrode automatic welding machine according to the present invention.

* Explanation of symbols for main parts of the drawings

10: carrier for transport 12: support post

20: wire reel 22: clamp

30 electrode 40 wire supply unit

50: flux supply and recovery unit

C: Control part H: Knob for moving

P: Control Panel M1: Carrier Drive Motor

M2: Wire Supply Motor

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 are a perspective view, a front view and a side view showing a two-electrode automatic welding machine according to the present invention, the two-electrode automatic welding machine of the present invention is a carrier drive motor (M1) to be movable on an unillustrated rail; Carrier 10 driven by a driving wheel 11, two wire reels 20 for supplying a welding wire to the upper part of the carrier 10, and wound around each wire reel 20 Two wire supply units 40 provided with a wire supply motor M2 for supplying a wire to the electrode 30, and a flux supply for supplying flux to the electrode 30 and collecting excess flux after welding again. And a recovery unit 50, wherein a power supply is supplied to a carrier driving motor M1, a wire supply motor M2, and an electrode 30 inside the one wire reel 20. Control unit (C) is installed to control the Control panel with power switch (S1, S2, S3), pilot lamp (L), voltage and current meter (MV, MA), voltage and current control switch (SV, SA) of welding and carrier By installing (P) to effectively operate two welding machines in one control panel (P), the movement handle (H) is installed on one side of the carrier 10, the two wire reels ( 20) is arranged in parallel in the forward and rearward direction of the carrier (10).

On the transport carrier 10, the electrode 30 and the wire supply unit 40 is installed to adjust the separation distance from the carrier 10, the upper end of the support post 12 is fixed to the carrier 10 Two wire reels 20 are rotatably fixed by the clamp 22, and a hopper 52 for storing flux is attached to an upper end of the support post 12. In this hopper 52, The flux supply pipe 54 is connected to the front of the electrode 30, and the flux recovery pipe 56 is connected to the rear of the electrode 30.

Reference numeral 32 in the drawing denotes a cover provided outside the electrode 30.

Figure 4 is an enlarged view of the control panel (P) of the two-electrode automatic welding machine according to the present invention, each of the power switch (S1, S2, S3) for the two welding machine and the carrier in one control panel (P) , Forward and reverse switch (SC) and carrier speed control switch (SZ) of carrier 10, wire speed control switch (SS) supplied to electrode 30 of each welding machine, voltage and current control switch (SV, SA) , Voltage and current meta (MV, MA), carrier speedometer (MC), etc. are arranged in an orderly manner for easy operation and easy to see with the naked eye. By operating only (P), two welding machines can be controlled as desired.

In the present invention, by installing the moving handle (H) on the side of the carrier to the operator to move the carrier without having to bend the waist.

FIG. 5 illustrates a circuit of a control part C of a two-electrode type automatic welding machine according to the present invention. In FIG. 5, a circuit of one side welder in an AC arc welding machine is shown. Carrier driving circuit part C1, wire supply circuit part C2, and welding electrode circuit part C3 for controlling (M1) are divided, and the carrier driving circuit part commonly used by both welding machines in the present invention in which two welding machines are combined. The remaining wire supply circuit portion C2 and the welding electrode circuit portion C3 are omitted from the circuit except for (C1), and the present invention can be manufactured in such a manner that both welding machines use an AC power source as shown in FIG. Alternatively, one can be produced by using an AC power source and the other by using a DC power source.

On the other hand, the circuit in the method using a DC power supply is as shown in Figure 6, the circuit of the arc welding machine is substantially the same as the control circuit of the conventional automatic welding machine, so a detailed description thereof will be omitted.

As described above, the present invention can reduce the volume and weight of the two-electrode type automatic welding machine, thereby facilitating transporting and welding work, and the two automatic welding machines can be operated from one control panel. Has a convenient practical effect.

Claims (3)

A transport carrier with drive wheels driven by a carrier drive motor so as to be movable on the rail, two wire reels for supplying welding wires on top of the transport carrier, and wires wound on each wire reel as electrodes. In the two-electrode automatic welding machine comprising a wire supply unit having a wire supply motor for supplying, and a flux supply and recovery unit for supplying the flux to the electrode and collecting again after welding, Inside the one side of the wire reel 20 is provided with a control unit (C) for controlling the power supply to the carrier drive motor (M1), two wire supply motor (M2) and two electrodes (30), the front of the The control panel (P) with power switch (S1, S2, S3), pilot lamp (L), voltage and current meter (MV, MA), voltage and current control switch (SV, SA) Two-electrode automatic welding machine characterized by. The method according to claim 1, One side of the transfer carrier 10 is a two-electrode automatic welding machine, characterized in that the movement handle (H) is extended. The method according to claim 1, The two wire reels (20) is a two-electrode automatic welding machine, characterized in that installed in parallel to the front, rear of the transport carrier.