CN201799759U

CN201799759U - Long effective conductive nozzle

Info

Publication number: CN201799759U
Application number: CN2010202185847U
Authority: CN
Inventors: 石建荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-07
Filing date: 2010-06-07
Publication date: 2011-04-20
Anticipated expiration: 2020-06-07

Abstract

The utility model relates to a long effective conductive nozzle. The conductive nozzle comprises a ceramic cap, a conductive inner core and a tailstock, wherein the ceramic cap adopts a hollow structure; a first through hole is formed in the center of the front end of the ceramic cup; the conductive inner core is arranged in the ceramic cap; the ceramic cap is arranged at the outer part of the conductive inner core in a protecting manner; the tail part of the conductive inner core is a connecting part; a second through hole is formed in the center of the connecting part; two symmetrically placed connecting sheets are connected to the front surface of the connecting part; the front end of each connecting sheet is connected with a clamping block; two clamping blocks form a clamping head; the tailstock is sleeved at the rear end of the connecting part; a third through hole is formed in the tailstock; and the rear end of the ceramic cap is sleeved at the front end of the tailstock. The utility model has the advantages that the phenomena of splashing, adhesion, blockage, and arcing to burn down the conductive nozzle are eliminated, the time for cleaning and replacing the conductive nozzle is reduced, the labor intensity is reduced, the work efficiency is improved, the electric current is steady, outgoing wires cannot swing, carbon dioxide gas is directly blown to electric arc, the product quality can be improved, and the service life is prolonged more than eight times.

Description

Long-acting electric conduction nozzle

Technical field:

The utility model relates to the ignition tip that a kind of mechanical industry metal solder is used, particularly a kind of long-acting electric conduction nozzle.

Background technology:

From the utilization of carbon dioxide solder technology for many years, in the use of ignition tip, exist a lot of people to look forward to the technical problem that solves, some problem even troubling, though through numerous improvement, but because the work under bad environment of carbon dioxide ignition tip and the limitation of rifle body, these problems still do not obtain breakthrough and obtain thoroughly effective solution simultaneously, as:

1. the easy adhesion of splash is deposited on the tip, has not only influenced the protection of carbon dioxide gas to electric arc, and splash is stacked into to a certain degree and will links to each other with protective sleeve; very easily run into electric arc; cause that short circuit burns ignition tip, use anti-blocking agent not only to add trouble, increase cost, effect is also not satisfactory.For this reason, the operative employee must frequently be interrupted weld job and cleared up.Through statistics roughly, working time 8 hour every day, according to the welding parameter difference of using, need about 15-20 time of cleaning splash, ten minutes bothers, and production efficiency is greatly affected.

2. the coating or the dust and other impurities that come off of welding wire easily stopped up the ignition tip endoporus, and causing welding wire to be stuck can't wire feed, is forced to interrupt welding, pulls down ignition tip and dredges endoporus or change ignition tip, has a strong impact on production efficiency.

3. in order to make welding wire can pass through the tip endoporus smoothly, the diameter of bore of ignition tip must be processed greatlyyer than gage of wire, so just following several problem appears: first, can produce erratic rocking during the welding wire wire vent, after particularly the endoporus wearing and tearing become greatly, shaking amplitude is bigger, has increased the operative employee and has controlled the difficulty of transporting the silk accuracy, influences welding forming and weldquality; The second, welding wire is loosening the contact with the ignition tip endoporus, and loose contact makes new ignition tip burn when the firm starting the arc sometimes, and is very unfortunate, and waste is serious; The 3rd, loose contact causes the electric current shakiness and influences welding quality; The 4th, because ignition tip endoporus itself is just big than gage of wire, can't provide a certain amount of material for its wearing and tearing, itself just can't have the long life-span; In addition, loose contact also causes welding wire and endoporus to produce electric spark and ablates or produce fusant and pile up (this phenomenon mainly occurs in the ignition tip head seven millimeter scopes), in case produce, the conduction bad phenomenon will further be worsened or result in blockage, have a strong impact on the ignition tip life-span.

4. because the very close weld zone of ignition tip, the hyperthermia radiation in electric arc and molten bath, ignition tip is worked under very high temperature, and the hardness of ignition tip material and wearability are sharply descended, and this also is that ignition tip can't have one of key factor of longer life.

Above-mentioned problems are to be simultaneous in welding process, and the wherein existence of any one problem can become all that trouble, efficient in the welding process is influenced, the ignition tip waste is huge.Must effectively be solved simultaneously.

But for many years, people have carried out a lot of effort and improvement, as endoporus being changed into delthyrium or polygon hole, stop up and the raising conductive stability to reduce; As the material that uses wearability and good heat resistance improves the ignition tip life-span; Even consider ignition tip is carried out recirculated water cooling or the like.But the complexity during owing to the work of carbon dioxide ignition tip and the limitation of rifle body, the problems referred to above are not all effectively solved simultaneously.

Summary of the invention:

The purpose of this utility model is in order to overcome above deficiency, provide a kind of can solve simultaneously all problems that the conventional conductive mouth exists, have revolutionary ignition tip: its is difficult for sticking splashing; Stopped the endoporus clogging; Current stabilization, resistance heat are low, the welding wire wire vent is not swung; Effectively improve welding quality, and energy savings; Cheap; The following life-span of equivalent material prolongs more than 8 times.And derive an additional innovative function, promptly carbon dioxide can effectively reduce the temperature of ignition tip and more effectively provide protection to electric arc by the ignition tip inner chamber, directly flow to electric arc around welding wire.

The purpose of this utility model is achieved through the following technical solutions: a kind of long-acting electric conduction nozzle; ignition tip is by the porcelain cap; conductive core and tailstock are formed; the porcelain cap is a hollow-core construction; the front end center of porcelain cap is axially arranged with first through hole; conductive core is arranged in the porcelain cap; the protection of porcelain cap is in the conductive core outside; the afterbody of conductive core is a connecting portion; the connecting portion central shaft is provided with second through hole to running through; be connected with the brace that self has elastic force that two symmetries are placed on the front surface of connecting portion; the front end of each brace all is connected with clamp; two clamps are formed chuck; be with tailstock on the rear end of connecting portion, and axially run through in the tailstock and be provided with third through-hole, the rear end of porcelain cap is enclosed within on the front end of tailstock.

Further improvement of the utility model is: between the connecting portion of conductive core and the tailstock, all be connected by screw thread between tailstock and the porcelain cap.

Further improvement of the utility model is: the facing surfaces of two clamps is provided with groove.

Further improvement of the utility model is: the afterbody of conductive core is a connecting portion, be connected with the brace that self has elastic force that two symmetries are placed on the front surface of connecting portion, be provided with guider between two braces, the rear surface of guider is connected with the front surface of connecting portion, the center of connecting portion and guider is axially arranged with fourth hole, the front end of each brace all is connected with clamp, and two clamps are formed chuck.

The utility model compared with prior art has the following advantages:

1, porcelain cap itself adhesion that can stop to splash and can be used to protect inner core to avoid splashing and adhere to and the direct radiation of high temperature; so both need not to shut down the cleaning splash; improved production efficiency; also having stopped short circuit burns the tip phenomenon, avoids the conductive core excessive temperature to raise; given full play to the physical and mechanical properties of inner core material, effectively increased the service life.

2, conductive core dependence self resilient clamp welding wire conducts electricity low energy savings that resistance is thermoae by force; The welding wire wire vent is not swung, the operation easier when reducing operative employee's welding; Electric current is extremely stable, help improving welding quality, has also avoided because the phenomenon that loose contact is burnt ignition tip when causing the starting the arc.Because inner core is the resilient clamp welding wire, stops the endoporus clogging, avoids shutting down cleaning ignition tip endoporus and change ignition tip; improved production efficiency, saved cost, conductive core provides more wear extent to supply its wearing and tearing simultaneously; adopt equal material, and can prolong more than 8 times the life-span.

3, the inner cavity that forms of whole tip can make the carbon dioxide of about 10%-15% flow through from ignition tip inside; can play whole tip is cooled off and to the effect that electric arc is better protected, can reduce the temperature of whole ignition tip and reduce the generation of weld defect.This is another additional innovative function of the utility model.

4, porcelain cap and tailstock are not fragile, reusable, effectively economical with materials reduces cost, in addition, because the processing charges of conventional conductive mouth account for whole ignition tip cost than small part, its cost mainly comes from Master Cost, and the weight of the utility model ignition tip wearing detail inner core only is 1/6 of conventional conductive mouth approximately, and the life-span is more than 8 times of conventional conductive mouth, can save a large amount of precious metals, economic benefit and social benefit are very considerable.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the cutaway view of A-A among Fig. 1;

Fig. 3 is the structural representation of a kind of embodiment of the utility model;

Fig. 4 is the structural representation that the utility model carbon dioxide and welding wire pass through ignition tip inside;

Fig. 5 is the structural representation of a kind of embodiment of conductive core in the utility model;

Fig. 6 passes the structural representation of the another kind of embodiment of conductive core for welding wire;

Fig. 7 is the structural representation of the another kind of embodiment elastic recovery of conductive core;

Number in the figure: 1-porcelain cap, 2-tailstock, 3-first through hole, 4-connecting portion, 5-second through hole, 6-brace, 7-clamp, 8-third through-hole, 9-groove, 10-guider, 11-fourth hole.

The specific embodiment:

In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used to explain the utility model, does not constitute the qualification to the utility model protection domain.

Show a kind of embodiment of the utility model long-acting electric conduction nozzle as Fig. 1 and Fig. 2; ignition tip is by porcelain cap 1; conductive core and tailstock 2 are formed; porcelain cap 1 is a hollow-core construction; the front end center of porcelain cap 1 is axially arranged with first through hole 3; conductive core is arranged in the porcelain cap 1; 1 protection of porcelain cap is in the conductive core outside; the afterbody of conductive core is a connecting portion 4; connecting portion 4 central shafts are provided with second through hole 5 to running through; be connected with the brace that self has elastic force 6 that two symmetries are placed on the front surface of connecting portion 4; the front end of each brace 6 all is connected with clamp 7; two clamps 7 are formed chuck; as shown in Figure 3, be equipped with identical groove 9 on the phase-contact surface of two clamps 7, be with tailstock 2 on the rear end of connecting portion 4; and axially run through in the tailstock 2 and be provided with third through-hole 8; first through hole 3; the existence of second through hole 5 and third through-hole 8 can make portion gas pass through from ignition tip inside, and the rear end of porcelain cap 1 is enclosed within on the front end of tailstock 2.Between the connecting portion 4 of conductive core and the tailstock 2, all be connected between tailstock 2 and the porcelain cap 1 by screw thread.

Porcelain cap 1 is by pottery or the metal surface is ceramic coated or exotic material such as graphite is made, it can be stopped the splash adhesion and stop that splash sticks on the conductive core, make whole ignition tip form a cavity simultaneously, flow through from ignition tip inside with the carbon dioxide that limits 10%-15%; First through hole 3 in porcelain cap 1 antetheca passes through for welding wire and carbon dioxide, and the rear end screw thread is in order to be fixed on the tailstock 2.Groove 9 on two clamps 7 is in order to the clamping welding wire; The wall thickness of brace 6 is suitable, has the elasticity of suitable elastic force in order to realize this place, has the gap between two braces 6, and the existence of this gap has realized again whole inner chamber is communicated simultaneously, is used for ventilation, kills two birds with one stone; As shown in Figure 3, adopt plastic deformation process that the head of two clamps 7 is closed up, when welding wire passes through from two clamps 7, two clamps 7 are strutted, rely on brace 6 the resilient clamp welding wire, conduct electricity, provide wear extent for its wearing and tearing by force, close up even wear up to the line of rabbet joint of end, the aperture of this moment is identical with gage of wire, unlike conventional conductive mouth aperture greater than welding wire, so the life-span still be higher than the conventional conductive mouth.Tailstock 2 front ends are processed inside and outside two screw threads, and in order to porcelain cap 1 and conductive core to be installed, rear end threading and welding gun are complementary, and the centre is drilled with third through-hole 8, in order to by welding wire and carbon dioxide, as shown in Figure 4.

The characteristic of conductive core also can be used for the solder technology of other type separately.Be the structural representation of the another kind of embodiment of conductive core in the utility model as Fig. 4; the afterbody of conductive core is a connecting portion 4; be connected with the brace that self has elastic force 6 that two symmetries are placed on the front surface of connecting portion 4; be provided with guider 10 between two braces 6; the rear surface of guider 10 is connected with the front surface of connecting portion 4; connecting portion 4 is axially arranged with fourth hole 11 with the center of guider 10; the diameter of fourth hole 11 is identical with the diameter of welding wire; the front end of each brace 6 all is connected with clamp 7; two clamps 7 are formed chuck; it can be used for the welding place that other a lot of nothings are splashed and be need not gas shield; owing to need not to consider the problem of gas shield and splash; so structure is simple relatively, existing is example with the Lincoln weld ignition tip:

Tradition Lincoln weld ignition tip diameter of bore is equally also greater than gage of wire, have loose contact so equally, the electric current shakiness, the phenomenon of just burning ignition tip when often the starting the arc taking place, the multi-conducting mouth all can be because of the heating variable color, when having surpassed the softening temperature of ignition tip material, hardness and anti-wear performance will sharply descend, and can't have the long life-span.The meaning of the life-span length of submerged arc tip not only is to save ignition tip cost and a large amount of precious metals, and more significant meaning is the cost in the production process, particularly needs the large component of detecting a flaw.Tip life-span weak point means that the joint of weld seam is many, and the joint generally is the position of welding the easiest generation defective automatically, sometimes long weld seam need be changed several ignition tips, and a defective just means to lift, to choose seam, welding and film making once more back and forth as reprocessing.Each process all takes time, the cost of manpower and materials and equipment resources, and the set of these costs may be thousands of units, is that the expense of several ignition tips is incomparable.

In the implementation case Fig. 5, the conductive core of this structure just directly is used in the Lincoln weld, axially open a groove that is similar to " Y " shape from the conductive core front end edge with line cutting or other processing methods, endoporus is drilled into certain depth by the rear end, need not to drill through, when cutting " Y " shape groove, cut in passing logical, the screw thread that rear end processing and welding equipment are complementary.As shown in Figure 6, when welding wire passed, the front end strain was strutted, and two planes of front end clamp welding wire and force conduction under the effect of elastic force, conducted electricity extremely reliably, just burnt the phenomenon of conductive core when not having the recurrent starting the arc extremely; It is for the ease of the passing smoothly of welding wire that conductive core exists two pairs of inclined-planes, the inclined-plane that gradient is bigger, and the less inclined-plane of gradient is to be strutted back plane by welding wire and welding wire is identical substantially for the end; Because the welding wire for submerged-arc welding diameter is big, firmness is high, so endoporus limits the welding wire sideslip just in time as the welding wire pilot hole, the two is combination cleverly, and structure is extremely simple.That uses this ignition tip need not to transform existing equipment, also need not in the use ignition tip is done any interference, need not to change operating habit, extremely convenient.As shown in Figure 7, though the core that the front end of conductive core contacts with welding wire constantly weares and teares, but under elastic reaction, the conductive core front end is clamped welding wire all the time, until using up for lost material, the conductive core elastic part restores, but the life-span of the conductive core of this moment is still not second to the conventional conductive mouth.Test data shows that electric conductivity is splendid, resistance heat low (ignition tip even can touch) with hand, energy savings, current stabilization, weld seam is more smoothly full, weldquality is better, under the equivalent material, the life-span be the conventional conductive mouth 8-10 doubly more than.

Claims

1. long-acting electric conduction nozzle; it is characterized in that: described ignition tip is by porcelain cap (1); conductive core and tailstock (2) are formed; described porcelain cap (1) is a hollow-core construction; the front end center of described porcelain cap (1) is axially arranged with first through hole (3); described conductive core is arranged in the described porcelain cap (1); described porcelain cap (1) protection is in described conductive core outside; the afterbody of described conductive core is connecting portion (4); described connecting portion (4) central shaft is provided with second through hole (5) to running through; be connected with two symmetrically arranged braces (6) that self have elastic force on the front surface of described connecting portion (4); the front end of each described brace (6) all is connected with clamp (7); two described clamps (7) are formed chuck; be with described tailstock (2) on the rear end of described connecting portion (4); and axially run through being provided with third through-hole (8) in the described tailstock (2), the rear end of described porcelain cap (1) is enclosed within on the front end of described tailstock (2).

2. according to the described long-acting electric conduction nozzle of claim 1, it is characterized in that: between the connecting portion of described conductive core (4) and the described tailstock (2), all be connected between described tailstock (2) and the described porcelain cap (1) by screw thread.

3. according to claim 1 or 2 described long-acting electric conduction nozzles, it is characterized in that: the opposite face of two described clamps (7) is provided with groove (9).

4. according to the described long-acting electric conduction nozzle of claim 3, it is characterized in that: the afterbody of described conductive core is connecting portion (4), be connected with the brace that self has elastic force (6) that two symmetries are placed on the front surface of described connecting portion (4), be provided with guider (10) between two described braces (6), the rear surface of described guider (10) is connected with the front surface of described connecting portion (4), described connecting portion (4) is axially arranged with fourth hole (11) with the center of described guider (10), the front end of each described brace (6) all is connected with clamp (7), and two described clamps (7) are formed chuck.