CN2880349Y

CN2880349Y - Conducting nozzle

Info

Publication number: CN2880349Y
Application number: CN 200620020310
Authority: CN
Inventors: 王麟书
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-06
Filing date: 2006-03-06
Publication date: 2007-03-21
Anticipated expiration: 2016-03-06

Abstract

The utility model discloses a conductive nozzle. A semi-spheral via groove is arranged at the plane between the upper semi-sphere and the lower semi-sphere, at least one pair of corresponding positioning holes are arranged at the upper and lower edges of the planes, trapezoidal grooves are arranged at the front ends of the upper semi-sphere and the lower semi-sphere, and a ceramic insulation piece with a tapered handle is arranged inside the grooves. The utility model is featured with simple structure, reasonable design, long service life, easy fabrication and low comprehensive cost.

Description

Ignition tip

Technical field

The utility model relates to a kind of contact tip for welding.

Background technology

Ignition tip is the vitals on the electrode gas shielded arc welding gun, how to be made by conductive material red copper and copper alloy, and intensity and fusing point all are lower than the steel welding wire, and welding wire will pass from the centre bore of ignition tip at work, and produces the arc-melting welding wire between the workpiece.Ignition tip drips under the acting in conjunction of splash scaling loss and welding wire frictionally damage in the weldering of high arc temperature, fusing, and service life is very low, generally also just about 1-2 hour.Frequent replacing ignition tip has reduced operating efficiency.Use the more expensive chromium zirconium copper of price to do ignition tip and can improve its life-span by 3-4 hour.Two sections ignition tips that form with being threaded before and after also the someone invented in the past, starting point are to solve the too fast problem of ignition tip scaling loss by only changing first half.But because make complexity, improve and used cost, and want frequent shut-down to change ignition tip equally, so in actual production, be not applied.

Summary of the invention

The purpose of this utility model is to overcome the weak point that exists in the above-mentioned technology, provides a kind of simple in structure, reasonable in design, long service life, ignition tip with low cost.

In order to achieve the above object, the technical solution adopted in the utility model is: centerline direction has semicircle groove in the upper edge, plane of upper and lower semicircular body, be provided with at least one pair of locating hole of upper and lower correspondence at the position, end limit on plane, having the cross section at upper and lower semicircular body front end position is trapezoidal groove, and the ceramic insulation sheet of band taper shank is housed in it.

The utility model has the advantages that:

Simple in structure, reasonable in design, long service life, easily processing, integrated cost is cheap.

Description of drawings

Fig. 1 is the utility model upper semi-circle body structure schematic diagram;

Fig. 2 is the utility model lower half circle body structure schematic diagram;

Fig. 3 is upper and lower semicircular body connection diagram;

Fig. 4 is a ceramic insulation sheet schematic diagram;

Fig. 5 is ceramic insulation sheet and semicircular body connection diagram;

Fig. 6 is clip and ignition tip connection diagram.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

By Fig. 1-Fig. 6 as can be known, the utility model is to have semicircle groove 3 at the upper edge, plane of upper and lower semicircular body 1,2 centerline direction, be provided with at least one pair of locating hole 4,5 of upper and lower correspondence at the position, end limit on plane, having the cross section at upper and lower semicircular body 1,2 front end positions is trapezoidal groove, and the ceramic insulation sheet 6 of band taper shank is housed in it.

Upper and lower semicircular body 1,2 butt joints are inlaid with bearing pin 7 in the locating hole 4,5.

Upper and lower semicircular body 1,2 butt joints can also be equipped with rivet, screw in the locating hole 4,5, are fixed with clip 8 on the cylindrical wall.

The utility model is equipped with a slice in red copper ignition tip front be high temperature resistant wear-resisting again ceramic insulation pad; improve the intensity and the wearability in red copper ignition tip leading portion welding wire exit; the physical form in protection red copper ignition tip leading portion exit is not ground away by splash scaling loss and the welding wire of high temperature, and the harm of splash scaling loss and welding wire frictionally damage is dripped in the weldering that so just can reduce high arc temperature, fusing greatly.Thereby improve the service life of red copper ignition tip.Two forgings form semicircular bodies that (ELEMENTARY INTRODUCTION TO NON) have alignment pin and a blind hole and are formed by connecting by rivet, screw, welding or in the outside method with binding, hoop, card, curium of two semicircular bodies and since centre bore about on the semicircular bodies once the property forging combine.Thereby improved the concentricity of red copper ignition tip, also improved simultaneously and produced the efficient of ignition tip and the utilization rate of material, reduced manufacturing cost.

Claims

1. ignition tip, comprise the ceramic insulation sheet, it is characterized in that: centerline direction has semicircle groove (3) in the upper edge, plane of upper and lower semicircular body (1), (2), be provided with at least one pair of locating hole (4), (5) of upper and lower correspondence at the position, end limit on plane, having the cross section at upper and lower semicircular body (1), (2) front end position is trapezoidal groove, and the ceramic insulation sheet (6) of band taper shank is housed in it.

2. ignition tip according to claim 1 is characterized in that: upper and lower semicircular body (1), (2) butt joint are inlaid with bearing pin (7) in locating hole (4), (5).

3. ignition tip according to claim 1 is characterized in that: upper and lower semicircular body (1), (2) butt joint, in locating hole (4), (5) rivet, screw can also be housed, and be fixed with clip (8) on the cylindrical wall.