SU1708557A1 - Apparatus for arc welding with rotating electrode - Google Patents

Abstract

The invention relates to welding and the moss be used in the welding of dissimilar or neutralized connections. The goal is to simplify the equipment by creating an electrical connection between the power source of the arc and the rotating electrode. The device for arc welding includes a housing 1. a rotating electroplate holder 2, a screw gauge 3. replaceable gears 4. an electrode 5. fixed eccentrically in the electrode holder ^ and a welding current regulator. A gang type switch 6 with a set of resistors is used as a regulator. The switch is mounted in the upper part of the housing coaxially rotating the electrode holder 2. The switch slider 7 through insulating sleeves 8 is fixed on the axis of the electrode holder and constantly in contact with the annular lobe 9. To the petals. arranged around the circumference of the slider 7, the trimming resistors are connected. The leads from the ring flap 9 and the resistors are connected to the control unit of the welding current of the arc power source. The invention makes it possible to vary the number of pulses applied to the rotating electrode and separately regulate the amount of welding current in each pulse. 2 ill. “Feyu.— * VlO 00 O1 01 V4

Description

The invention relates to welding and can be used in welding dissimilar or different thickness joints.

The purpose of the invention is to simplify the equipment by creating an electromechanical connection of the power source of the arc with a rotating electrode.

FIG. 1 shows a diagram of the device; Fig. 2 is a diagram of the connection of the device to the power source;

The device includes a housing 1, a rotating electrode holder 2, an electric motor 3, interchangeable shchestreni 4, an electrode 5 eccentrically fixed in the electrode holder, and a welding current controller. As a regulator, a switch 6 with a set of Ri-Re resistors is used. The switch b is mounted in the upper part of the housing coaxially rotating electrode holder 2. The slider 7 of the switch is fixed through the insulating sleeves 8 on the axis of the electrode holder 2 and is constantly in contact with the ring-shaped petal 9. Trimming resistors RI-RS are connected to the petals 10 located on the circumference of the slider 7 The -RBs are connected to the welding current control unit instead of the standard resistor that controls the strength of the welding current,

The device works as follows.

After presetting the device to the edge of the edges to be welded, the electric motor is turned on. Through interchangeable gears, the rotation is transmitted to the electrode holder. The electrode begins to rotate with welded edges with a given eccentricity. The electric arc is ignited and the movement of the device along the edges being welded is turned off.

Simultaneously and synchronously with the rotation of the electrode, the switch slider rotates. In this case, through the contact lobes the trimming resistors are alternately connected to the welding current control unit.

Each of the resistors is connected to the control unit at the moment when the arc is located above the edges to be welded and the strength of the welding current at that moment is determined by the resistance value of the connected resistor. Changing the resistance of the Ri-Re resistors, regulate the magnitude of the welding current pulse at each arc position.

The application of the invention permits the technological capabilities of welding with a rotating electrode, since it makes it possible to vary the number of pulses delivered, separately adjust the amount of welding current in each pulse and thereby produce total or separate heating or annealing of the parts to be welded. At the same time, due to the electromechanical connection of the device with the power source, the impulse supply is stable in time and in magnitude.

Formula au 3 gains

A device for an arc arc of a rotating electrode, comprising a housing, an electrode, an electrode rotating drive and an arc power source, characterized in that, in order to simplify the equipment by creating electromechanical communication of the arc power source with a rotating electrode, it is provided with a welding current regulator a switch with a set of variable resistors, which is mechanically connected with a rotating electrode, and electrically with a power source of the arc.

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Claims (1)

Claim 30 A device for arc welding by a rotating electrode, comprising a housing, an electrode, an electrode rotation drive and an arc power source, characterized in that, in order to simplify the equipment 35 by creating an electromechanical connection of the arc power source with a rotating electrode, it is equipped with a welding current controller made in in the form of a hard drive switch with a set of 40 resistors, which is mechanically connected to a rotating electrode, and electrically to an arc power source.