CN2278559Y

CN2278559Y - Electric welding electrode with limit structure

Info

Publication number: CN2278559Y
Application number: CN 96222036
Authority: CN
Inventors: 张铭振
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-10-22
Filing date: 1996-10-22
Publication date: 1998-04-15
Anticipated expiration: 2006-10-22

Abstract

The utility model provides an electric welding rod with a spacing structure, which forms a convex shoulder on the starting end of an exposed iron core which is arranged at the tail part of an electric welding rod and is welded by welding tongs, so that the welding tongs are prevented from sliding toward a coating layer of the front part in the processes of welding, impact and ignition. The favorable contact performance of a conducting copper block of a jaw of the welding tongs and the iron core of the electric welding rod is always kept, and the service life of the welding tongs is prolonged.

Description

The welding rod of band position limiting structure

The utility model relates to a kind of welding rod with position limiting structure, is used to limit relatively moving between welding rod and the soldering turret.

Welding rod has middle iron core and outside dope layer, and afterbody is that outside coating is to being a taper seat transition for the exposed iron core of soldering turret clamping between the afterbody.In welding job through regular meeting the situation that one root bead bar is just finished using through igniting welding several times takes place; the electric arc yet each igniting is ignited; all must hand soldering turret; firmly clash into welded part with welding rod; the welding rod of soldering turret and its clamping is easy to guidance quality because of the dope layer taper seat and produces and relatively move in bump; when the electrode coating layer is arrived in the slippage of soldering turret jaw; conduction copper billet and contacting of iron core as jaw become bad; the local resistance scaling loss that easily takes place of carrying out the line contact is conducted electricity copper billet and is formed breach; further worsened the conduction contact performance; work on, then make conduction copper billet scaling loss breach more, must lose holding function and scrap until the soldering turret incompleteness.

The purpose of this utility model is to provide a kind of welding rod with position limiting structure, and it can limit the tram of the relative soldering turret of welding rod in the welding operating mode, guarantees soldering turret jaw and the good clamping contact performance of core wire part, to prolong the life-span of soldering turret.

Task of the present utility model is achieved in that welding rod is made up of iron core and outside dope layer, and afterbody is the exposed iron core for the soldering turret clamping.Position, top with respect to the soldering turret clamping on the exposed iron core of afterbody has spacing convex shoulder.

Spacing convex shoulder can be the shaft shoulder that the dope layer of iron core outside forms, and also can be the shaft shoulder that the material of iron core own is made.

Because in the above-mentioned solution, top for the soldering turret retained part on the welding rod is provided with position limiting structure, the relative position of the welding rod of soldering turret and clamping can reliably be guaranteed in the welding, avoided effectively under bump ignites the electric arc operating mode, because of being subjected to displacement, soldering turret, welding rod cause scaling loss soldering turret jaw, so that the consequence of scrapping soldering turret has prolonged soldering turret service life.

Below in conjunction with the accompanying drawings concrete structure of the present utility model is described in further detail again with embodiment.

Fig. 1 is the front view of the welding rod of the band position limiting structure that provides of the utility model.

Fig. 2 is the right view of Fig. 1 structure.

Fig. 3 is the state diagram of soldering turret clamping band taper seat welding rod.

Fig. 4 is the state diagram of soldering turret clamping Fig. 1 structure welding rod.

As shown in Figure 3, its outside dope layer 1 of the welding rod that uses at present partly is taper seat 2 transition to afterbody for the soldering turret clamping, in when igniting bump because the guiding of taper seat, soldering turret jaw 3 very easy glide to taper seat 2, welding rod afterbody iron core 4 is contacted with soldering turret jaw conduction copper billet become bad, this is the main cause that causes scaling loss conduction copper billet 3 that soldering turret is scrapped, embodiment of the present utility model is for the top of clamping a spacing convex shoulder to be set at the welding rod afterbody, with stop under rum point firer condition soldering turret forward slippage get final product.As shown in Figure 1 and Figure 2, present embodiment adopts the outside dope layer 1 of welding rod to end to the place, top of afterbody for clamping iron core 4, and the formation shaft shoulder 5 is made spacing convex shoulder.This shaft shoulder has limited soldering turret jaw 3 slippage forward as shown in Figure 4 effectively.

Claims

1. a welding rod that has position limiting structure has iron core and outside dope layer (1), and afterbody is for the exposed iron core (4) of soldering turret clamping, it is characterized in that: the position, top with respect to the soldering turret clamping on the exposed iron core of afterbody has spacing convex shoulder.

2. welding rod according to claim 1 is characterized in that the shaft shoulder (5) that dope layer that described spacing convex shoulder can be the iron core outside forms.