SU608624A1 - Electrode holder for manual arc welding - Google Patents

Description

one

The invention relates to devices used in manual arc welding with fusing electrodes.

A known electrode holder for manual arc welding, comprising a tubular body with a spring-loaded electrode lock located therein and a spring-loaded contactor mounted coaxially with the lock and the tip of the welding cable with the possibility of movement relative to the lock 1J.

However, in this electrode holder, the welding current source is not disconnected during breaks in the rotor, and thus the danger of injury by the worker when working in cramped conditions, such as vessels and vessels, is not eliminated.

The aim of the invention is to increase safety and switch off the welding current during interruptions in work.

For this, in the proposed electrode holder for manual arc welding, the contactor is mounted on a clamp with a gap relative to the tip of the welding cable, and the gap size is smaller than the diameter of the fixing electrode.

FIG. 1 shows the proposed electrode holder, section; pas figs. 2 is a view along arrow A in FIG. one; in fig. 3 - contactor and

its cross section along BB; in fig. 4 - broken py clamping jaws in three projections.

The electrode holder includes a tubular body 1 in which a movable

the latch 2 with the spring 3 and the contactor 4 with the spring 5. The contactor 4 is attached by axis 6 to the latch 2 and can be moved relative to it by making the mounting hole 7 elongated. AT

inoperative position, the contactor 4 is separated from the tip 8 of the welding cable 9 by a gap. External enclosures of jaws 10 are mounted into the housing 1, on which the handle 11 is hingedly mounted for controlling the latch 2. The end of the contactor 4 is placed in the insulating sleeve 12.

In the off position, the contactor 4 is separated by a gap from the tip 8 of the welding cable.

To install the electrode into the jaws 10, it is necessary to press the handle 11 and move downwards along the arrow B, while the clamp 2 moves down, the contactor 4 presses against the tip after the electrode is installed, and the clamp 2 under the action of the spring 3 presses the electrode to the outer jaws 10, forming tight contact

To disconnect the electrode holder jaws from the welding cable, pull the handle 11 back down in arrow B, discard

bite the electrode and release the handle to its original position, the contactor and the accumulator 8 open. The difference in the diameters of the electrode is compensated by the idle stroke of the contactor 4 at the expense of the window 7 and is limited by the axis 6.

In this embodiment, the electrode holder increases the safety of work inside the vessel, pots, tanks and apparatus, reduces the metal consumption and the cost of manufacturing special equipment.

Claims (1)

1. US Patent No. 2873357, cl. 219-138,1959. YU ipuz. 1rig.Z lflUi.2