CN202684311U

CN202684311U - Multi-electrode spot welding head

Info

Publication number: CN202684311U
Application number: CN 201220346706
Authority: CN
Inventors: 吴云龙; 香錦洪
Original assignee: DONGGUAN WILSON WELDING EQUIPMENT Co Ltd
Current assignee: DONGGUAN WILSON WELDING EQUIPMENT Co Ltd
Priority date: 2012-07-17
Filing date: 2012-07-17
Publication date: 2013-01-23
Anticipated expiration: 2022-07-17

Abstract

The utility model discloses a multi-electrode spot welding head, which comprises two mutually insulated electrodes (1) for introducing a current, and a welding nozzle (2) connected to the front ends of the two electrodes (1) and serve as heating resistors, wherein the welding nozzle (2) comprises at least two mutually separated resistant points (21 and 22). The resistance points can be contact resistance points which are formed by extending and contacting the front ends of the two electrodes, and also can be connection resistance points which are formed by connecting the front ends of the two electrodes to form a whole. The multi-electrode spot welding head has the advantages that multipoint welding can be performed simultaneously, and the production efficiency can be improved.

Description

A kind of multi-electrode spot welding head

[technical field]

The utility model relates to resistance welded, electrically heated soldering tip, espespecially a kind of multi-electrode spot welding head.

[background technology]

The point welding machine welding head of prior art has up and down each formations that crash mutually, at every turn only to weld a bit.Also handlebar two electrodes weld above being placed on simultaneously soldered object, and this method can be welded 2 points at every turn.

Above structure is welded the metal of naked body only, just can't weld some metal such as enamel-covered wires that are insulated the thing parcel.

Existing technology such as Chinese patent 932453775 " prestressing force point welding electrode " and 032613407 " Welding head for electronic spot welding machine " although etc. disclosed soldering tip can enamel-covered wire be welded, at every turn only with the weldering a bit, efficient is very low.

[summary of the invention]

For the shortcoming of prior art, the purpose of this utility model is to provide a kind of multi-electrode spot welding head that can carry out simultaneously multi-point welding.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of multi-electrode spot welding head is provided, comprise the electrode that is used for the introducing electric current of two mutually insulateds and be connected in this two electrodes front end as the tip of heating resistor, it is characterized in that: described tip comprises at least two point of resistance (electrode points) of mutually separating.

Described point of resistance can be two or more several.

Described point of resistance can be that described two electrode front ends extend the contact resistance that contact forms, and can also be the disjunctor resistance that is linked into one with described two electrode front ends.

Can there be one deck to play the insulation viscose glue of cementation and insulating effect between the electrode that is used for the introducing electric current of described two mutually insulateds.

The beneficial effects of the utility model are: can carry out simultaneously multi-point welding, enhance productivity.

[description of drawings]

The utility model will be further described below in conjunction with accompanying drawing.

Fig. 1 is the stereoscopic figure of the utility model the first embodiment.

Fig. 2 is the front view of the utility model the first embodiment.

Fig. 3 is the A-A cutaway view of Fig. 2.

Fig. 4 is the stereoscopic figure of the utility model the second embodiment.

Fig. 5 is the front view of the utility model the second embodiment.

Fig. 6 is the B-B cutaway view of Fig. 5.

Fig. 7 is the C section enlarged drawing of Fig. 3.

Fig. 8 is the D section enlarged drawing of Fig. 6.

Fig. 9 is the stereoscopic figure of the utility model embodiment three (three point of resistance).

Among the figure: 1 is that electrode, 2 is that tip, 21,22 is that point of resistance (electrode points), 3 is the insulation viscose glue.

[specific embodiment]

Referring to accompanying drawing, a kind of multi-electrode spot welding head of the utility model, comprise the electrode 1 that is used for the introducing electric current of two mutually insulateds and be connected in this two electrodes, 1 front end as the tip 2 of heating resistor, it is characterized in that: described tip 2 comprises at least two point of resistance (electrode points) 21,22 of mutually separating.

Referring to Fig. 1, Fig. 2 and Fig. 4, Fig. 5, first, second embodiment of a kind of multi-electrode spot welding head of the utility model has two point of

resistance

21,22.

Referring to Fig. 7, in the first embodiment of the present utility model, described point of resistance 21, the 22nd, the contact resistance that described two electrodes, 1 front end extends to form.Electrode 1 by about two blocks of refractory metals consist of, it is the soldering tip main body, its front end is tip 2, electrode 1 is two parallel semicylinders, there is one deck to play the insulation viscose glue 3 of cementation and insulating effect between these two parallel semicylinders, left and right sides two halves tip extends forward from electrode 1 and dwindles gradually, become inclined-plane shape or taper, and bend inwards at certain point, make left and right sides two halves tip front end form low resistance contact, this contact point can be made into two contact points, forms point of resistance by contact point, produces high temperature and welds when welding current just produces electricity-Re conversion during by these point of resistance.

Referring to Fig. 8, in the second embodiment of the present utility model, described point of resistance 21, the 22nd, the disjunctor resistance that is linked into one with described two electrodes, 1 front end.Electrode 1 is vertically cut open by a cylindrical refractory metal, and the other end of hatching line entrance (tip 2 ends) does not cut off and reserves certain thickness such as Fig. 8, fixes with insulation viscose glue 3 or other adhesive insulants in the middle of it; The means such as cutting polishing of need to utilizing in corresponding position of then pressing welding work pieces form 2 point of resistance, weld when welding current just produces electricity-Re conversion generation high temperature during by these point of resistance.

Referring to Fig. 9, the 3rd embodiment of the present utility model has three point of resistance.

Claims

1. multi-electrode spot welding head, comprise the electrode (1) that is used for the introducing electric current of two mutually insulateds and be connected in this two electrode (1) front end as the tip (2) of heating resistor, it is characterized in that: described tip (2) comprises at least two point of resistance (21,22) of mutually separating.

2. a kind of multi-electrode spot welding head according to claim 1, it is characterized in that: described point of resistance (21,22) can be that described two electrodes (1) front end extends the contact resistance that contact forms, and can also be the disjunctor resistance that is linked into one with this two electrode (1) front end.