SU1687398A1 - Electrode holder for manual arc welding - Google Patents

Abstract

The invention relates to welding, and in particular to electrode holders, and can be used in manual arc welding with a fusion electrode. The purpose of the invention is to increase the reliability of electrode fixation and improve the performance of the electrode holder. The electrode holder comprises a handle 1, a housing 2 and a gland element made in the form of an elastic (rubber) sleeve 3. within which a movable lever 9 and a fixed current-carrying supporting sponge 4 are fixed. The latter is made with a through cylindrical bore 7, which is coaxial with the possibility of longitudinal The displacement is set to the ejector electrode 8. The movable element 9 is configured as a segment with a longitudinal rectangular groove under the electrode. The handle 1 of the electrode holder is made hollow for placing the lead wire 11 in it and is fixed to the case by means of the hinge 12. The use of an elastic (rubber) sleeve as a gland element makes it possible to isolate the case of the electrode holder from the current lead system without additional insulators. 1 hp f-ly, 2 ill. THX

Description

The invention relates to welding, in particular to electrode holders, and can be used in manual arc welding with a fusion electrode.

The purpose of the invention is to increase the reliability of electrode fixation and improve the performance of the electrode holder.

Figure 1 shows the electrode holder, a longitudinal section; in fig. 2 is a section A-A in FIG.

The electrode holder comprises a handle 1, a housing 2 containing a coaxially mounted elastic (rubber) cylindrical sleeve 3, which is a pressing element of a current-supplying sleeve, inside which a fixed stationary sponge 4 is attached, connected to the current-carrying wire and made from a cylindrical ring with a face cut. 5 and along the axis on which there is a socket b under the electrode.

In the through cylindrical hole 7 coaxially with the possibility of longitudinal movement of the installed ejector 8 of the ends of electrodes. The movable element 9 is made in the form of a segment with a longitudinal rectangular groove 10 under the electrode. Inside the handle 1, a lead wire 11 is placed. The handle of the electrode holder is connected to the housing 2 by means of a hinge 12.

The electrode is replaced as follows. Ejector 8 is translated into

about

00

4 SO YO 00

the leftmost position, with the cup end removed from the housing. The electrode is inserted into the gap between the support sponge 4 and the movable element 9 and the radial force is inserted into the housing of the electrode holder up to the stop. Due to the elastic properties of the sleeve 3, the movable element receives a vertical displacement relative to the current-supplying support sponge 4 and presses the electrode to it. The electrode holder is ready for operation, while rigid fixation of the electrode is ensured by the elasticity of the rubber. By turning the knob 1 relative to the housing 2 around the hinge 12, set the required angle of inclination of the electrode.

The current-carrying element - the supporting sponge 4 is made of copper or an aluminum alloy (in order to facilitate the design of the electrode holder), the material of the moving element 9 can be ordinary steel. The design of the proposed electrode holder allows the use of electrodes with a diameter of 3-5 mm.

The use of an elastic (rubber) sleeve as a gland element not only makes it possible to increase the electrode fixing reliability by reducing the force exerted by the end of the electrode on the fixation mechanism at the moment of ignition of the welding arc, but also to insulate the body of the electrode holder from the current-carrying system without additional insulators.

The improvement in performance of the electrode holder is in turn expressed in an effective way of removing the butt of the electrode due to the impact of the ejector on it (by hitting the

from the case of the end of the ejector about any nearby object the ejector moves to the extreme left position, which leads to the removal of the butt of the electrode from

Claims (2)

electrode holder), as well as in providing a wide range of adjustment of the angle of inclination of the electrode relative to the handle of the electrode holder (the range can be from 0 to 180 °), which is achieved due to the hinged connection of the housing with the handle. Claim 1. Electrode holder for manual arc welding, comprising a handle with a housing in which a fixed supporting sponge made in the form of a cylindrical ring with an end cut along the axis and a nest under the electrode connected to the lead wire, and a movable element mounted with the possibility interaction with a movable element, characterized in that, in order to increase the reliability of electrode fixation and improve the performance of the electrode holder, it is provided with a pusher of the butt of the electrode, the gland element is designed as an elastic sleeve, and the movable element is in the form of a segment with a longitudinal rectangular groove under the electrode , the fixed support sponge is made with a through cylindrical hole, while the ejector of the butt of the electrode is installed in the cylindrical hole, and the movable element is fixed in elastic sleeve. 2. Electrode holder according to claim 1, about t l and - due to the fact that the elastic sleeve is made of rubber. FIG. I