CN110076434A

CN110076434A - Durable welding ignition tip easy to process and its manufacturing method

Info

Publication number: CN110076434A
Application number: CN201811077449.2A
Authority: CN
Inventors: 何强; 汪年成; 何珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-15
Filing date: 2018-09-15
Publication date: 2019-08-02
Also published as: WO2020052588A1

Abstract

The processing method of Durable welding ignition tip easy to process, conducting block is obtained in such a way that ignition tip front end processes and lacks seam, it is either obtained, or will be obtained after two conducting block combination blocks progress interference connections by way of being obtained after the thick scarce seam of processing and lacking seam.Durable welding ignition tip easy to process, the front end of ignition tip have one to lack seam, and ignition tip is made to form two conducting blocks up and down；Durable welding ignition tip easy to process, removes the material of ignition tip front end two sides and processing line passes through the edge of welding wire via hole and forms thickening conducting block, and the width for thickening conducting block is narrower than welding wire.Durable welding ignition tip easy to process, the front end of ignition tip are slender cylinders, and the center of ignition tip is big via hole, and the head of cylindrical body is conductive head, and the center of conductive head is conductive hole, and conductive hole and big via hole are on same axis.

Description

Durable welding ignition tip easy to process and its manufacturing method

Technical field

The present invention relates to the manufacturing methods of a variety of Durable welding ignition tips, and according to the resistance to of these types of manufacturing method manufacture Use welding electrode.Its main feature is that there is the scarce seam of flat shape in the front end of ignition tip, ignition tip is divided into up and down by the scarce seam of flat shape Two conducting blocks, conducting block constrain welding wire, are that welding wire is conductive, and wears for welding wire.The scarce seam of ignition tip is by cutting It cuts, interference connection conductive composition block, and thick lack of first forging and stamping are stitched, then are rolled into the scarce seam acquisition of Bao Erchang.The ignition tip is not only Long service life, and electric conductivity is excellent, has not only saved use cost, also improves welding quality.The ignition tip is maximum The characteristics of be structure and its simple, be more readily processed and manufacture in technique, compared with prior art, not only reduce and be produced into This, while the production time is also shortened, improve production efficiency.

It is to possess the ignition tip for thickening conducting block and possess respectively the invention further relates to other two kinds of Durable welding ignition tips The ignition tip of conductive head.

Background technique

Ignition tip is essential key components and parts in melting pole gas shielded arc welding welding equipment, performance it is good The bad quality for being related to welding.The performance of ignition tip is mainly reflected in two aspects, and one is electric conductivity, and one is using the longevity Life.The principle of melting pole gas shielded arc welding is, electric energy is conducted to welding wire by ignition tip, welding wire as circuit anode with The cathode of workpiece generates electric arc, by the heat of electric arc and the effect fusing welding wire and workpiece of protective gas, to reach welding Purpose.The function of ignition tip is to transfer electrical energy to welding wire, therefore ignition tip transmits the ability of electric energy, plays welding quality to pass Important role.The ignition tip of melting pole gas shielded arc welding, when welding, wire feeder is constantly past by ignition tip by welding wire Molten bath conveys welding wire (filling metal), and welding wire and base material fusing are realized welding by electric arc.As the weld seam of welding slowly extends, weldering Silk is also ceaselessly delivered to molten bath by ignition tip.In other words, welding is exactly process of the welding wire constantly with ignition tip friction, welding Time is longer, and ignition tip friction is more serious.Welding wire is to be delivered to molten bath by the inner hole of ignition tip, and welding wire is in ignition tip The hole wall in hole constantly rubs, and the inner hole of ignition tip, which would not break, to become larger, and inner hole becomes larger, and electric conductivity is just deteriorated, therefore when conduction When mouth is worn to a certain extent, ignition tip will be replaced.Electric conductivity, which is deteriorated, means to be conducted to the electric energy deficiency of welding wire, brings Direct result be exactly that welding quality is deteriorated, welding penetration do not reach requirement, and incomplete fusion phenomenon increases, appearance of weld unsightly, Spatter such as increases at many adverse consequences.Electric conductivity variation also results in that welding transition is irregular, makes the welding of welder Feel is deteriorated, and influences welder's job morale.It is inaccurate to also result in welding wire wire vent for ignition tip bore wear.Ignition tip it is interior Hole is not only the channel of welding wire, while also playing a part of constraining welding wire.For example, if welding wire is 1 millimeter, work as conduction When the hole of mouth is 1.2 millimeters, welding wire will be arbitrarily to move in 0.2 millimeter of round range with diameter in the inner hole of ignition tip, The offset for influencing weld seam is exactly each 0.1 millimeter around.With the progress of welding, ignition tip is constantly worn, when ignition tip When inner hole becomes 1.6 millimeters, welding wire will be arbitrarily to move in 0.6 millimeter of round range with diameter in the inner hole of ignition tip, shadow The offset of sound to weld seam is exactly each 0.3 millimeter around.Therefore, after ignition tip abrasion, the position precision of weld seam can also be deteriorated, meeting Cause be partially welded Deng welding defects.

Wearing to eliminate ignition tip gives welding production bring many adverse effects, and the inventor of welding field has thought very More methods, all view solve the problems, such as that this is intractable, therefore have also been born much about the invention of ignition tip.Such as the one of Japan Patent filed in a inventor on June 15th, 1998, denomination of invention " ignition tip and welding gun of welding gun ", inventor's Ishikawa It controls, application number JP16747798A, publication number JP2000000671A, which disclose a kind of new-type ignition tip, crucial skill Art scheme is to be made into the conveyor screw for being similar to spring with the wire of copper alloy, and welding wire passes through from the internal diameter of conveyor screw.This The disclosure of the invention a kind of new production method and form of ignition tip, the patent are mentioned, the spiral shell being made by the wire of copper alloy Body is revolved, internal diameter is more bigger than the diameter of welding wire.Therefore, the structure of the ignition tip of the invention is led still without basic variation occurs Sparking plug still has inner hole, and for welding wire inevitably with inner hole friction, weld interval is longer, and abrasion is more, and inner hole is also bigger.No Only in this way, this structure leads to its poor rigidity, is easily deformed since the main body of ignition tip is the conveyor screw made by copper wire.So And due to ignition tip working environment, it is desirable that there must be certain intensity, the consistency of welding wire wire vent will be deteriorated when otherwise welding, Welding seam bias cut is set to cause to be partially welded.Therefore the patent increases instead not only without solving existing ignition tip problem encountered New problem.Moreover, which is made of metal parts 12 and 6 two parts of above-mentioned conveyor screw, and structure is complicated, uses It is at high cost.

Patent " a kind of from clamping, long-life, energy saving ignition tip ", inventor Huang Chunli, the patent No. 2012205782694, Authorization Notice No. CN202894557U.The ignition tip of the patent disclosure is made of 4 independent parts --- see the patent description Fig. 1 (a), Fig. 1 (b), Fig. 1 (c) in book and Figure of description are ignition tip seat, ignition tip shell, spring, welding wire folder respectively. Welding wire folder is made of two half cylindrical body fixture blocks or a three three points cylindrical body fixture blocks, and welding wire accompanies taper, welding wire There is hole at the center of folder, and welding wire folds up in ignition tip shell, and ensures there is gap appropriate between fixture block and fixture block, ignition tip shell Body front end is also tapered, and taper and welding wire folder are consistent.After welding wire folds up ignition tip shell, spring, ignition tip shell are placed into There is screw thread in the tail portion of body, and the external screw thread of ignition tip seat is screwed into the screw thread of ignition tip shell, and welding wire is penetrated from ignition tip seat, passes through Spring is then passed through the centre bore of welding wire folder, finally stretches out from the head of ignition tip shell.One of spring and ignition tip seated connection Touching, other end and welding wire clamping connection touch.With ignition tip seat being screwed into from ignition tip shell, spring is compressed, compressed spring Welding wire is pressed from both sides to being pushed forward, the power of spring is passed to ignition tip shell again by welding wire folder.Since ignition tip shell is pressed from both sides relative to welding wire It remains static, in the case where ignition tip shell is again tapered, a reaction force will be pressed from both sides to welding wire.Since welding wire presss from both sides Front end is tapered, will shrink rear center hole to contract, welding wire folder after the fixture block stress of welding wire folder and just be bonded with welding wire, make to weld Silk folder and the contact surface of welding wire increase, and the electric energy that ignition tip is conducted to welding wire is consequently increased.With the progress of welding, welding wire folder Centre bore also wear out and become larger, electric conductivity is deteriorated.When the centre bore of welding wire folder becomes larger, since spring always presss from both sides welding wire Having one, welding wire folder will be shunk automatically at this time to the power being pushed forward, while the hole among welding wire folder also accordingly reduces, electric conductivity It gets back recovery, until the gap between the fixture block of welding wire folder is zero.

The above is exactly the inventive principle and application method of " a kind of from clamping, long-life, energy saving ignition tip ".It is seen on surface, The invention seem have certain reason, but the ignition tip by ignition tip seat, ignition tip shell, spring, welding wire weld clip 4 solely Vertical part composition, wherein welding wire folder is divided into several fixture blocks again.Total counting comes, and an ignition tip is independent by 6-8 Part combines, and could form an ignition tip with the above function, therefore structure is extremely complex.Leading currently on the market Sparking plug, only one part, size are only equivalent to the volume of patent welding wire folder, generally the least expensive only 0.8 yuan.And the patent It is made of 4 parts, price will be unquestionably its several times.Furthermore welding wire folder outside increases ignition tip shell, makes conduction The outer diameter of mouth increases.People known to welding field is both known about, has a nozzle outside ignition tip, effect is to protective gas Constraint and water conservancy diversion are formed, protective gas is gathered around molten bath after nozzle ejection and protected to molten bath.In nozzle diameter In the case where constant, ignition tip outer diameter increases, and certainly will influence the flowing of protective gas, and the shield gas flow rate sprayed is made to become smaller, Influence the protection to molten bath.If increasing the outer diameter of nozzle, changes the structure of nozzle again, be unfavorable for pushing away for this new technology Extensively.Furthermore after the outer diameter of nozzle increases, welding for some small spaces and unfavorable.It is shortest currently on the market to lead Sparking plug only has 25 millimeters long, accomplishes if the ignition tip seat of the patent, ignition tip shell, spring, welding wire are pressed from both sides this 4 part 25 millimeters of length, in manufacturing process, if easy to accomplish, how is manufacturing cost, these are all uncertain factors.If Ignition tip is done into length, and nozzle will also lengthen therewith, stand from the point of view of user, if I uses this ignition tip, also Nozzle is additionally replaced, will feel trouble, this undoubtedly increases the difficulty of popularization.For a user, with leading Sparking plug is directly used with regard to a part as long as ignition tip is screwed on welding gun.And this patent will first clamp welding wire Enter in ignition tip shell, welding wire folder is still made of several 2-4 fixture blocks, and this adds increased assembling difficulty；After installing welding wire folder, Also to be put into spring；Ignition tip seat is also screwed into ignition tip shell by spring after being packed into；Such a complete ignition tip is It is completed.Ignition tip could be finally screwed on welding gun, however this is also endless, at this moment you will also turn ignition tip mouth shell The chucking power of welding wire folder is adjusted, cannot be too loose, too loose electric conductivity is necessarily bad, can not be too tight, too tight welding wire is by welding wire Folder folder is dead, and welding wire can't get out, and welding wire can't get out, and welding can not just carry out.

Due to requiring welding wire folder cannot be too loose when welding, this characteristic that can not be too tight, entire mechanism --- ignition tip Seat, ignition tip shell, spring, welding wire press from both sides composed by this mechanism operation be sensitivity how, also have to be tested.Invention People presss from both sides welding wire and ignition tip shell carries out the design of taper, and purpose is exactly to make the relative motion of welding wire folder and ignition tip shell, It presss from both sides welding wire and just right clamps welding wire.This relative motion of welding wire folder and ignition tip shell necessarily causes between them Friction, the presence of frictional force necessarily reduce the sensitivity of ignition tip.Ignition tip seat is screwed into toward ignition tip shell --- it is realized with this Welding wire is pressed from both sides and is collapsed, welding wire is pressed from both sides the power pushed away inward by ignition tip seat, to be transmitted by intermediate spring.Since spring is one Whether the transmitting of part flexible, power is accurate, does not also know.Theoretically, the gap between each fixture block of welding wire folder should be equal Even distribution encounters but if the gap between fixture block is unevenly distributed and pastes to obtain too tight some gaps between fixture block and fixture block on one side No, and another side gap is excessive.In this case how is the sensitivity of ignition tip, and welding wire can or can not go to the big ground in gap Side is gone, and is not also known.Furthermore how to guarantee that the gap of fixture block and fixture block can be uniformly distributed, the invention is also without corresponding Measure.It is analyzed from the structure of the ignition tip, the process that ignition tip shell is twisted inward, is exactly the welding wire folder mistake tight by pine change Journey.If degree of not being sure, ignition tip seat is screwed into too much after that is when adjusting welding wire clamping force, welding wire is pressed from both sides by welding wire Must be too tight, welding wire can't get out, at this moment ignition tip shell back twisted a bit, can or can not the clamping force of welding wire folder become smaller? seem It is a little difficult, because welding wire is pressed from both sides can become larger with the frictional force of ignition tip shell after welding wire double-layered quilt excessively clamps, only work as ignition tip After shell screws back, then welding wire is pressed from both sides and applies a reversed power, welding wire folder can just fluff.Regrettably, the invention it is off guard this A function, in other words, the ignition tip of the patent disclosure, welding wire folder become tight easy by pine, by the difficulty that tightly fluffs.Only additional application is outer Power, or welding wire folder is taken out in ignition tip shell, it refills and is once adjusted from new, the elastic of welding wire folder could be transferred to It is just right.With the progress of welding, centre bore friction of the welding wire constantly with welding wire folder, which slowly becomes larger, at this point, inventor The potential energy for the spring placed hope in ignition tip presss from both sides welding wire toward being pushed forward, and shrinks ignition tip automatically.But realize this purpose Need to have a premise, that is, the potential energy of spring has to be larger than the frictional force of welding wire folder and ignition tip shell, and the gesture of spring It can be more than that welding wire folder is too many with the frictional force of ignition tip shell, otherwise welding wire can be pressed from both sides dead and lead to not wire vent by welding wire folder Or wire vent have some setbacks it is discontinuous.Therefore, in order to realize goal of the invention, the selection of spring model, welding wire is pressed from both sides and ignition tip shell How frictional force, welding wire folder and welding wire frictional force, the gap between the fixture block and fixture block of welding wire folder guarantee to be uniformly distributed, very These factors of dynamics to welding machine wire feeder wire feed rolls, etc. will fully consider.This undoubtedly increases the design of ignition tip Difficulty and manufacture difficulty.

This welding method of melting pole gas shielded arc welding determines that the power of welding wire folder clamping welding wire must be very faint , it otherwise will cause the drawback of wire vent difficulty.In conjunction with the goal of the invention and technological means of the patent, further according to the structure of the ignition tip Make comprehensive analysis.There are two types of the pipelines of electric energy required for welding, and one is ignition tip seats to pass to spring, spring transmitting It is pressed from both sides to welding wire, welding wire folder passes to welding wire.Another approach is that ignition tip seat passes to ignition tip shell, and ignition tip shell passes Welding wire folder is passed, welding wire folder passes to welding wire.Regardless of which kind of approach, require that these have between the part of electric energy transmission tasks Contact is close enough, otherwise will lead to contact resistance increase, and contact resistance increase can generate two unfavorable factors, and one is zero Part temperature rises rapidly, second is that the transmitting resistance of electric energy increases.The direct result of first unfavorable factor is that welding wire folder softens, shadow Service life is rung, the direct result of second unfavorable factor is that welding wire cannot get enough electric energy, and the energy of electric arc also drops therewith Low, welding wire or base material fusing are insufficient or not in time, and welding quality reduces.According to the construction of the patent it is found that allowing conduction The method that mouth seat, spring, welding wire folder or ignition tip seat, ignition tip shell, welding wire press from both sides this three and can be in close contact only has one It is a, the cooperation taper of welding wire folder and ignition tip shell is exactly increased, welding wire folder and the frictional force of ignition tip shell are increased.However Front analyzes, if welding wire folder is too big with the frictional force of ignition tip shell, will reduce the sensitivity of ignition tip, this will lead Cause otherwise welding wire by welding wire hold too tightly without wire vent or be exactly welding wire press from both sides centre bore abrasion after cannot shrink automatically. If welding wire folder and the cooperation taper of ignition tip shell reduced, then welding wire folder is thick with the surface of the contact surface of ignition tip shell Rugosity reduces, and so that contact surface is become very smooth, or even spread lubricating oil again, the sensitivity of such ignition tip can improve.Due to weldering The clamping that silk folder only allows to have slight to welding wire, then either ignition tip seat, spring, welding wire folder or ignition tip seat, conduction Can only also there be slight contact between mouth shell, welding wire folder, then this will certainly be such that their contact resistance increases, this is just formed One contradiction.Anyway, according to the Technical Analysis of inventor, it is desirable to which the technical effect for reaching anticipation has certain difficulty Degree.

Patent " long-acting electric conduction nozzle ", inventor Shi Jianrong, the patent No. 2010101939023, Authorization Notice No. CN101844267B, the ignition tip of the patent disclosure is by porcelain cap, conductive core, tailstock three parts composition --- see the patent description Fig. 1 in book and Figure of description.Since porcelain cap is manufactured by ceramics, therefore it is not easy adhesion splashing.Ceramics are insulator, conductive core Again inside porcelain cap, make its can not with the cathode contact of workpiece, so as to avoid the burning to conductive core is caused due to short circuit Damage.Porcelain cap absorbs the heat of most of electric arc, and the temperature of conductive core is made to be unlikely to rapid increase.The front end of conductive core has Gripping block, two gripping blocks form collet, and the rear portion of gripping block is connect with connection sheet, and the wall thickness of connection sheet is appropriate, it is therefore an objective to make Connection sheet possesses elasticity appropriate.Close up the head of two fixture blocks 7 using plastic deformation process, when welding wire is from two gripping blocks In by when, gripping block is softened, and gripping block remains the contact with welding wire by the elastic force of connection sheet, is led to ensure that The electric energy that electric inner core passes to welding wire has enough strength and stabilities.Gripping block is strutted shape between latter two gripping block by welding wire At certain gap, with the progress of welding, gripping block is slowly worn, and the gap between gripping block also little by little becomes therewith It is small.When the abrasion loss of two gripping blocks is exactly the degree of gage of wire, ignition tip service life at this time is still higher than tradition Ignition tip.Boring ratio welding wire is bigger in conventional conductive mouth, and especially inner hole is further enlarged after ignition tip abrasion, puts welding wire wire vent Dynamic big, which lives welding wire using grips, avoids the swing of welding wire.There is also such as " since inner core is elastic clip Welding wire is held, inner reversible cycle phenomenon is prevented " etc..Inventor is known as that " provide a kind of can solve institute existing for conventional conductive mouth simultaneously It is problematic, have revolutionary ignition tip: its splashing not easy to stick；Inner reversible cycle phenomenon is prevented；Electric current stabilization, resistance heat Low, welding wire wire vent is not swung；Welding quality is effectively improved, and energy saving；It is cheap；The equivalent material lower service life extends 8 times More than.And an additional innovative function is also derived, i.e., carbon dioxide gas is directly flowed by ignition tip inner cavity, around welding wire To electric arc, the temperature of ignition tip can be effectively reduced and more effectively provide protection to electric arc ".In short, inventor attempts to pass through The invention solves a variety of defects of the existing technology, however innovation and creation will meet objective scientific law, solve the problems, such as No doubt it is mostly a good thing, but falls into the condition attended to one thing and lose sight of another unintentionally sometimes.Archaism has cloud: fish and bear's paw can not get both, Namely this reason.

Porcelain cap is increased outside conductive core, porcelain cap also increases the outer diameter of ignition tip while protecting conductive core, Make the reduced space between ignition tip and nozzle, is unfavorable for the flowing of protective gas.Especially in some narrow spaces, nozzle Diameter reduced to greatest extent in the case where it is especially true." porcelain cap 1 is by ceramics or metal surface for the 29th section of first row of specification The heat-resisting materials such as ceramic coated or graphite are made ", when porcelain cap is by ceramics manufacture, since the characteristic of ceramics causes to produce The wall of porcelain cap can be thicker, and require him to become thin as far as possible according to the purposes of porcelain cap, which forms a kind of contradictions.If Porcelain cap is made by metal surface is ceramic coated, and whether current manufacturing process can be realized, and is not also known.If porcelain cap is by metal The problem of surface spraying graphite is made, and does not first say processing technology, even if can be manufactured according to the conjecture of inventor.We know Road, metal are a kind of conductors, and graphite is also a kind of conductor, and graphite coating is on metal, then porcelain cap also becomes conductor naturally.When When the workpiece of porcelain cap and cathode contacts, short circuit is equally also resulted in, then goal of the invention just cannot achieve.

Figure two is the structure chart of the invention, and conductive core is connected on tailstock in figure, that is to say, that ignition tip is by conduction Two parts of core and tailstock are formed by connecting, and this adds increased the length of ignition tip.Shortest only 25 millimeters of existing ignition tip, outside The nozzle in face is matched with it, if ignition tip is elongated, it is necessary to which the nozzle with changing equal length, this just gives this technology Popularization brings certain resistance.If the length of inner core and tailstock compressed, it is allowed to shorten to 25 millimeters of length after connecting It spends, whether easy to accomplish in manufacturing process, whether cost increases, and whether performance is affected, all uncertain.And the ignition tip removes Outside conductive core and tailstock, there are one porcelain caps outside conductive core, do not say material and structure of single part etc. pair first The influence of cost of parts, only from number of parts, the cost of the ignition tip is also more much higher than existing ignition tip.

As a upper patent, which is also to pursue a kind of ability of automatic clamping welding wire.Purpose is, works as welding wire After abrasion, the elastic force that can still rely on connection sheet enables gripping block to come into full contact with welding wire, has conductive core always Good electric conductivity, the reduction of electric conductivity after avoiding conventional conductive mouth bore wear from becoming larger.When welding wire is from two gripping blocks When centre passes through, gripping block is softened, and makes to form gap between gripping block, this gap is more exactly compared with conventional conductive mouth Abrasion loss out, when two gripping blocks wear the big hole of one and gage of wire etc. out by welding wire, gripping block be can no longer provide The abrasion being more than, the service life of ignition tip at this time, still slightly above conventional conductive mouth --- conventional conductive mouth can be suitable for welding wire Benefit penetrates, and diameter of bore is more bigger than welding wire.The 10th section the 3rd of the patent specification drain into the 5th row " tail portion of conductive core for connection Portion, interconnecting piece is central axial through the second through-hole is equipped with, and there are two itself symmetrically placed tools for connection in the front surface of interconnecting piece Springy connection sheet, the front end of each connection sheet are respectively connected with gripping block, and two gripping blocks form collet ".Specification the 29th Section the 4th drain into the 6th row " wall thickness of connection sheet 6 is appropriate, to realize the elasticity for possessing suitable elastic force at this, two connection sheets 6 it Between have a gap, it is that entire inner cavity communicates that the presence of this gap realizes simultaneously again, for ventilating, is killed two birds with one stone ".And according to The information such as Fig. 1, Fig. 2, Fig. 3 and Fig. 4 in Figure of description it can be concluded that.Conductive core is by gripping block, connection sheet and interconnecting piece Three parts composition, and be the small engraved structure in the big outside in the inside inside conductive core.This engraved structure be in order to: first is that in order to Connection sheet is set to possess " elasticity of suitable elastic force ", in that patent, so-called " elasticity of suitable elastic force " refers to i.e. will be in gripping block It remains to be bonded well with welding wire after abrasion, and requires the clamping force between gripping block cannot be too tight, in order to avoid cause welding wire wire vent Unsmooth hidden danger.This requires preventing the power of connection sheet generation flexible deformation from too big, therefore connection sheet must just be made sufficiently thin. If connection sheet is thin, an engraved structure necessarily will form between two connection sheets, the structure of this hollow out can just make whole A inner cavity communicates, and such carbon-dioxide protecting gas can circulate between connection sheet, achievees the purpose that cooling, so being " killing two birds with one stone ".It is seen on surface, such design is very perfect.The technical staff of welding profession understands, titanium dioxide when welding The flow of carbon protective gas is 10 liters per minute or so, even if the carbon dioxide gas for having 10-15% said according to the inventor Body flows through inside ignition tip, and flow also only has 1-1.5 liter per minute.So faint gas flow, to the drop of ignition tip Temperature effect can be ignored.Gas flows to the second through-hole from third through-hole, then from the engraved structure stream between two connection sheets Out, it is finally reserved in first through hole.Third through-hole, the second through-hole and the most important function of first through hole are provided for welding wire in fact Towards the channel in molten bath.But inventor is in order to which the ignition tip that covets is with multiple functions, have to allow protective gas to be allowed from Third through-hole and the second flow therethrough, and requirement protective gas of circulation from this accounts for the 10-15% of total amount.If it is desired that Flowing of the protective gas at this reaches this magnitude, must just add the enlarged-diameter of third through-hole and the second through-hole There is the structure of a hollow out between the connection sheet of conductive core, this results in welding wire, and suitable a distance can not be by very here Good constraint.And gripping block contacts to also keep good with welding wire after wearing, gripping block has certain clamping force, this A clamping force necessarily causes to hinder to the movement of welding wire.When welding wire at gripping block by resistance, welding wire is again constantly from welding gun Wire-feeding pipe conveying comes, and welding wire just loses constraint behind gripping block in the case, welding wire and it is possible that is not constraining Place generate bending, thus to welding wire conveying continuity and uniformity have a negative impact --- imagine, if one The iron wire that 1 millimeter of root conveys in the pipeline that internal diameter is 10 millimeters, can be what scene.Conductive core is by two gripping blocks The collet of composition, two symmetrical connection sheets and interconnecting piece three parts composition, structure is complicated, and processing time consuming is laborious.Especially connect The processing at contact pin position, due to being the structure of hollow out between two connection sheets, if with linear cutter, it need to be from conductive core The centre of the cross section of gripping block outermost end starts to be cut into, and first cuts gripping block, and clamping is cut again toward conductive core outer after cutting, cut To fastly close to conductive core edge when, then towards the axial direction of conductive core, cut the position of interconnecting piece, then reverse end for end again into conduction The other side of core is cut, and when cutting fastly close to the edge of the conductive core other side, is cut further back, is then cut the position of gripping block again It sets, returns again to the centre of conductive core, finally cutting go back to the place started again terminates.Process is very complicated, and wire cutting this Kind processing technology efficiency is very low, only just will use when the quantity of processing is few in the industry, is rarely used in batch production.If changed Material mill off between connection sheet first is milled out the hollow out between connection sheet to come by a kind of method with milling cutter, intermediate material milling After falling, connection sheet is just processed, and a knife is then cut among the front end of conductive core, conductive core front end one is divided is Two, become two gripping blocks.Such method is faster than first method, but will by two procedures processing or it is pretty troublesome.This There are one very big disadvantages for the conductive core of kind structure, that is, intensity is too weak.Front analyzes, and conductive core is to pressing from both sides Still be able to have lasting chucking power to welding wire after tight block abrasion, make gripping block remain with welding wire have it is good contact, that Connection sheet must just have good elasticity.It is uniform to convey in order to keep welding wire lasting from gripping block, gripping block Chucking power cannot be too big, if welding wire is too big by the resistance from gripping block, will result in welding wire wire vent and slows, even The case where not wire vent, is greatly affected welding.So connection sheet has not only required nothing more than good elasticity, elastic force is also required not It can be too big.Spring leaf must have both characteristics, and otherwise goal of the invention will be unable to realize.Connection sheet will have good bullet Property, the yield strength requirement of material is just high, and the high material of yield strength would generally be very hard.However the application scenarios of conductive core are accused Tell us, the elastic force of connection sheet cannot be too big, so connection sheet needs to be made sufficiently thin.Therefore connection sheet is to need well Elasticity, but elastic force again cannot too big (thin).It is seen on surface, as long as spring leaf has both characteristics, the purpose energy of invention It realizes.The elastic force of spring leaf is small, it is meant that spring leaf can arbitrarily be stirred by only needing the external force of very little, just imagined, possessed What the conductive core of such spring leaf is, that is exactly that the rigidity of conductive core can be very poor.In welding production, most The common welding wire trade mark is H08Mn2Si, and can be seen that this from the trade mark of welding wire is that a kind of material phosphorus content is low, but manganese content Very high, manganese content height means that welding wire is very hard, there is rigidity.Why welding wire has such a characteristic, because of welding wire It needing to convey in wire-feeding pipe, the people for being familiar with welding both knows about, as soon as it can the long cable of root long, wire-feeding pipe be hidden in tow behind welding gun It ensconces inside cable.Therefore in welding production, wire-feeding pipe by various forms of bendings, in order to ensure in welding wire such complicated Environment in can smoothly convey, welding wire must have certain rigidity, and otherwise welding wire at the uniform velocity cannot be transported to molten bath The inside.For the ease of storing and transporting, welding wire is often wrapped in round and round inside disk or drum, is actually made With when, welding wire is not straight line, but irregular camber line.Due to this characteristic of welding wire --- shape is irregular Arc line shaped, and there is stronger rigidity.And the connection sheet of conductive core is the lesser spring leaf of elastic force, when welding wire is constantly from folder When tight block passes through, gripping block is to the restraining force of welding wire with regard to poor.That is, welding wire is quilt in the state of a kind of relatively freer It transports out, gripping block can only follow wire oscillation.Since welding wire is conveyed out in a fixed place, similarly It will cause the case where welding wire wire vent is swung.This will result in the defect being partially welded, especially in welding robot or welding In the case where the unartificial welding such as arm, since welding track is carried out according to the route being previously set, wire oscillation causes to weld Inclined this welding defect can be more serious.

In order to overcome this defect, conductive core is optimized in inventor, sees the figure in the patent specification attached drawing 5.The program is that the cavity between connection sheet is used, specifically: " it is equipped with guiding device 10 between two connection sheets 6, leads It is connected to the rear surface of device 10 with the front surface of interconnecting piece 4, interconnecting piece 4 and the central axial of guiding device 10 are equipped with the 4th Through-hole, the diameter of fourth hole 11 and the diameter of welding wire are identical ... ".The direct result of this technical solution is caused in conduction The inside of core has one " slot for being similar to ' Y ' shape ".And inside conductive core also " there are two pairs of inclined-planes ".Conduction after optimization Cavity between inner core connection sheet is changed to guiding device, has in guiding device fourth hole (inner hole), and the diameter of fourth hole It is identical as the diameter of welding wire.In this way, welding wire conveying when preferably constrained, wire vent more evenly with it is smooth and " interior Hole is just used as welding wire pilot hole, limits welding wire sideslip ".Conductive core after optimization, although functionally overcoming one kind The shortcomings that conductive core, but structure is more complicated, not only there is gripping block, connection sheet and interconnecting piece, also adds guiding dress It sets, there are also fourth holes in guiding device.Structure is complicated, and manufacture difficulty is also increase accordingly, since a kind of upper conductive core does not have Guiding device, connection sheet can be processed by way of milling, after the metal mill off being more than among conductive core, it is remaining that Part metals are exactly connection sheet.If increasing a guiding device between connection sheet, become the internal structure of ignition tip inner core Must be complicated, it can not be processed with the method for milling.The method that can be realized is exactly to be cut the inside of conductive core with wire cutting " to open one It is cut into the centre of the cross section of a slot for being similar to ' Y ' shape ", method or the first gripping block outermost end since conductive core, Toward the direction of conductive core outer.The lesser inclined-plane of gradient is first cut, the inclined-plane with welding wire for coming into full contact with, by conductive core Electric energy fully passes to welding wire.After the lesser inclined-plane of gradient is cut, continuation is cut outward, cuts the biggish inclined-plane of gradient, the inclined-plane For making welding wire smoothly penetrate gripping block.After the big inclined-plane of gradient is cut, then connection sheet is cut, direction is the direction toward interconnecting piece, The position close to interconnecting piece is cut, connection sheet just cuts out, has said it is clear that here no longer above the effect of connection sheet It repeats.However this has cut half, when cutting the other half, molybdenum filament must backtracking, due to molybdenum filament cutting gap it is non- Often small, molybdenum filament cannot be retracted quickly when return to be come, and otherwise molybdenum filament is easy to be stuck.So returning to also base when coming Originally it is slowly to cut back, wastes time very much.After molybdenum filament returns, referring to the method for front, other half is cut, but this does not have also It is complete, also inner hole " is cut logical " in passing when cutting Y-shaped slot.With the development of science and technology, laser cutting technique is wide In the general cutting processing applied to steel, ignition tip is the copper and its alloy manufacture by conducting electricity very well, and this metal is to laser Reflectivity it is very high, cutting performance is very poor, material especially thick to this comparison of ignition tip, using laser cutting substantially not It may.There is the product structure of Y-shaped slot in this inside of inventor, and alternative processing method is limited, will receive it is various because The restriction of element.It is conceivable that inventor only considered the function of product, ignore when carrying out the design of conductive core structure The manufacturing processing technic of product.There is good product design, if processing difficulties, just will increase cost of goods manufactured and week Phase.Even good product design causes invention to be miscarried since existing manufacturing technology cannot achieve.Either due to processing essence The reason of degree, material property etc. etc., causes invention design that expected effect is not achieved.Inventor carries out innovation and creation, no The product that only designed will also make the structure of product easy to process and manufacture.Consider that the structure of product can not only be real Existing goal of the invention, also wants easy to accomplish in processing and manufacturing, that is, wants durable, and performance is stablized, and to be also easily achieved mass Production.Invention is for Promote Technology, and even more in order to preferably be society service, modern society is the society of commercialization Meeting, the best home to return to of invention are that the development of evil in febrile disease is socially circulated at commodity.However competition of market economy is fierce, there is good product, Also there is a good price, market could be allowed to be received in this way.If led because of the unreasonable products structure of innovation and creation Cause production efficiency low, high production cost will bring resistance to the popularization of innovation and creation.If innovation and creation cannot be public institute Receive, also just loses the meaning of innovation and creation.

Summary of the invention

In order to overcome, structure is complicated for conductive core in foregoing invention, and manufacturing method is single, and production efficiency is low, and at high cost lacks Point, the present invention provides a kind of structure is simple, manufacturing method multiplicity, easy to produce and process, high production efficiency, welding at low cost The manufacturing method of ignition tip and the ignition tip.The present invention does not pursue the diversity of product function deliberately, onlys demand with simpler Structure, the design more conducively fabricated reach and improve production efficiency, reduce production cost, realize scale metaplasia Production and commercial sales, enable product Rapid Popularization and application, it is easier to be received by society, and serve welding conscientiously The purpose of production.

In technical solution provided by the invention, only structure is not simple, easy to process, high production efficiency, and production cost is low Advantage, additionally provide in addition it is several than the conductive core ignition tip that the service life is longer in above-mentioned " long-acting electric conduction nozzle " patent Technical solution, not only service life is longer than conductive core for they, and structure is equally very simple, it may have and it is easy to process, it is raw Produce high-efficient, the low advantage of production cost.

The present invention also provides the manufacturing method of a variety of above-mentioned ignition tips, according to different situations and can need to select when production It selects one such or several, the production and processing of product is made to become more flexible and efficient.

The technical solution adopted by the present invention to solve the technical problems is: the present invention is only in the front end of common conductive mouth It opens one and is about 2-30 millimeters long, wide about 0.01-6 millimeters of flat shape lacks seam, and the scarce seam of flat shape need to pass through ignition tip inner hole The center of circle of (i.e. welding wire via hole), so that ignition tip front end is divided into two conducting blocks up and down, the thickness that flat shape lacks seam is welding wire 1-4 times of diameter after scarce seam processes, by the head of upper and lower conducting block to internal pressure, makes the head of upper and lower conducting block paste.Welding When, allow welding wire to be pierced by from conductive block header, conducting block comes into full contact with welding wire at this time, and electric energy can be conducted from ignition tip well To welding wire.With the progress of welding, conducting block is worn into a circular hole by welding wire, if still seamed between two conducting blocks above and below at this time Welding wire is then released from ignition tip, is further continued for after upper and lower conducting block pressure is held together using until upper and lower conducting block pastes completely by gap. Compared with common conductive mouth, this solution provides more materials to wear for welding wire, therefore service life is high.In order to ensure welding wire It is still able to maintain the state that patch is held together after conducting block is worn into a circular hole, between conducting block, the higher copper material of yield strength must be used Such as chromium-zirconium-copper, phosphor-copper, tin bronze.In order to make conducting block that there is elasticity well, and it is unlikely to generate welding wire very big resistance Power need to be processed into the front end of ignition tip the cylindrical body of rule, and cylindrical body is about 2-30 millimeters, and the diameter of cylindrical body takes welding wire straight 2.5-5 times of diameter is easy.After cylindrical body processes, two symmetrical notches are opened in the rear end of the cylindrical body, make two notches Between to be left the material thickness of part be 2-4 times of gage of wire.Scarce seam still lacks seam for flat shape, and the scarce seam of flat shape is across leading The center of circle of sparking plug inner hole, parallel with notch, flat shape lacks the heel of seam in the middle part of notch either middle and back, it is therefore an objective to by bullet Property conducting block pressure when holding together, lacking seam heel provides support to elastic conduction block, easy to process.Seam is lacked with a thickness of the 1-3 of gage of wire Times, while need to ensure that the material thickness of conducting block gap portions is 0.3-2 millimeters.Finally exactly two conducting block pressures are held together, if Because the thickness of scarce seam can suitably be increased when the work that material is harder to hold together two conducting block pressures is more difficult.By gap portions Material thickness control at 0.3-2 millimeters, it is therefore an objective to so that conducting block is had elastic force appropriate.Because conducting block requires, elasticity is good (when two conducting blocks grind a circular hole isodiametric with welding wire by welding wire, conducting block can be also bonded with welding wire well), Also requiring resistance, small (when ignition tip just begins to use, conducting block is not worn, and welding wire passes through from conducting block, at this time conducting block butt welding The resistance of silk is maximum, but this resistance does not influence welding wire and easily passes through from conducting block), the depth of notch can control notch Locate the thickness of material, therefore the size of conducting block resistance can be adjusted by notch.In addition, ignition tip front end is processed into directly The lesser cylindrical body of diameter, purpose are exactly to keep the material of gap portions narrower, thus can increase its thickness, easy to process.By Elastic force appropriate, therefore referred to as elastic conduction block are needed to have in conducting block.In order to make elastic conduction block that there is suitable bullet Power is needed in elastic conduction block rear end one notch of additional processing, more one of manufacturing procedure.In order to be further simplified ignition tip Structure improves processing efficiency, cylindrical body rear end can be changed to concave ring.Concave ring is also cylinder, and diameter ratio is for processing elasticity The cylindrical body of conducting block is small.The structure of concave ring is similar with cylindrical structure, can process together when processing cylindrical body, thus remain The diameter of the process for having removed machining gap, concave ring is smaller than cylindrical body, also plays the same effect of machining gap on the cylinder, But structure is simpler.The durable ignition tip of this easy processing is said from composed structure compared with conductive core, eliminates connection Piece, composed structure are simpler.It is said from internal structure, only one straight scarce seam of the durable ignition tip of easy processing, internal junction Structure is also simpler than conductive core.It may be said that being capable of processing the processing method and equipment of Y-shaped slot, this can be processed and lack seam, It is capable of processing the processing method and equipment for lacking seam, can not necessarily process Y-shaped groove.Scarce seam can carry out cutting with cutting sheet and add Work.Alternative processing method is versatile and flexible, in terms of the flexibility of processing method and equipment, be conductive core cannot and 's.And processing technology also has the advantages that be simple and efficient.Cutting sheet is common metal working tools, is easily obtained, and is processed The cost of tool (equipment) is also very low.And the internal structure of conductive core be " slot for being similar to ' Y ' shape ", can not with cutting sheet into Row cutting processing, alternative processing method is limited, and low efficiency, and the time is long, at high cost.

The above-mentioned durable ignition tip of easy processing does not have connection sheet, is flat construction inside conducting block, rather than " Y " of conductive core Type structure or in big outer small engraved structure.Internal structure is simpler than conductive core, easy to process and production, efficiency at low cost It is high.But service life is not improved, ignition tip be supplied to welding wire more than abrasion loss at most can only with the diameter uniform thickness of welding wire, This is again assumed that welding wire only toward the limit perfect condition of one lateral wearing of elastic conduction block, and ignition tip is supplied to weldering more under normal conditions The abrasion loss of silk only has half of gage of wire or so.For the service life of the highly conductive mouth of further body, it is necessary to provide More materials are worn for ignition tip, and method is that the front end of ignition tip is processed into cylindrical body, and the diameter of cylindrical body is that welding wire is straight 3.2-5 times of diameter, cylindrical body are about 4-20 millimeters.Then the material of cylindrical body two sides is cut away, first vertical cut 2-10 from front to back Then millimeter is chamfer toward ignition tip outer again, the removed part in two sides is symmetrical structure.Ignition tip front end only retains middle part The material divided, the thickness of middle section material are slightly less than gage of wire.It is no matter conductive since the width of conducting block is slightly narrower than welding wire How block wears, and upper and lower two conducting blocks will not be contradicted mutually always, therefore can provide more materials for its abrasion.With For welding wire is directly 3 millimeters of ignition tip, if it is 12 millimeters that the ignition tip diameter of front, which takes 4 times of gage of wire, subtract 3.2 millimeters of ignition tip diameter of bore is again divided by 2, then the thickness of unilateral conducting block is exactly 4.4 millimeters.4.4 millimeters of thickness can It is 1.4 millimeters out more than the diameter of welding wire for the amount of abrasion to be all supplied to ignition tip abrasion.Service life compares naturally Conductive core is higher, and this conducting block more crossed and worn that can provide is referred to as to thicken conducting block.It leads referring to above-mentioned easy processing is durable The scheme of sparking plug, it is practical in conjunction with production, the different schemes such as common conductive block and elastic conduction block can be used respectively.

In addition, there are also the durable ignition tips of easy processing more higher than thickening conducting block scheme service life.Easy processing is durable to be led The front end of sparking plug is elongated cylindrical body, and the outer diameter of cylindrical body is 2-4 times of gage of wire, and 5-20 millimeters of length, easy processing is resistance to It is the big via hole of welding wire with ignition tip center, big via diameter is slightly bigger than common conductive mouth, is 1.1-3 times of gage of wire. Cylindrical body head is conductive head, and conductive head center is conductive hole, and conductive hole is smaller than big via hole, and diameter is suitable with gage of wire, is led Electric Kong Yu great via hole is on same axis.Welding wire is pierced by through big via hole from conductive hole.After welding wire is big by conductive hole mill, it can make Conductive head is inwardly squeezed with external force, conductive hole aperture is made to become smaller, then ignition tip can continue to use, and so recycle.In this way, The all material of cylindrical body whole cross section can be worn for welding wire, moreover, conductive as long as the length long enough of cylindrical body Mouth can be kept using it.In view of if cylindrical body abrasion keeps electrode extension too long too much, when cylindrical body is worn The ignition tip more renewed after 3-10 millimeters.The big via hole aperture ratio welding wire of the durable ignition tip of easy processing is big, the conductive hole hole of conductive head Diameter is suitable with welding wire, and welding wire is pierced by through big via hole from conductive hole, and conductive hole, which forms welding wire, to be constrained and be that it is conductive.Use process In, welding wire can only wear the hole wall at conductive hole, due to welding wire will not within the scope of the certain length of conductive hole rear portion Big via hole hole wall contact, thus the position will not advanced wear, cylindrical body can be used normally.The program not only makes entire cylinder The all material of body section can be worn for welding wire, and the cylinder length for ignition tip abrasion reaches 3-10 millimeters, therefore The durable ignition tip service life of easy processing further increases.The durable ignition tip welding wire via diameter of easy processing is than conventional conductive mouth Greatly, welding wire via hole aperture becomes larger, then more easily processes.Using the technical solution of conducting block, although improving making for ignition tip With service life and electric conductivity, but there is scarce seam between conducting block, ignition tip is close from molten bath, and when welding, which splashes, can inevitably splash scarce seam In go, cause cleaning splash trouble.This programme is full-closed structure, does not lack seam, eliminates the trouble that cleaning is splashed.And After aperture increases, ignition tip welding wire via hole is easy also to be solved very well the problem of blocking.The main material of ignition tip is copper, matter Ground is softer, and cylinder wall thickness also only has 1-3 millimeters, carries out secondary operation to it after conductive hole abrasion and is also very easy to.

The other two kinds of manufactures processing method of the durable ignition tip of easy processing is described below.

Method 1: taking one section of copper or copper alloy and is the blank of cylindrical body, the maximum of the diametric requirements of blank than ignition tip Section is also big.A macropore is bored centered on the blank center of circle, aperture is the half of cylindrical body outer diameter to person's one third.By In being relatively large in diameter for cylindrical body, the diameter in hole also accordingly becomes larger, and either drilling is either punched, used drill bit and formed punch Diameter also become larger.The drill bit or formed punch that major diameter thus can be used are processed, and such benefit is processing hole Tooling strength is high, it is not easy to fracture；Bigger power can be applied when processing hole, improve penetration rate；Machining tool can also be more Long, the hole of processing is also elongated therewith.After hole machined is good, just using rolling, (rolling-applies external force to object to be processed, makes simultaneously Object to be processed rotation, the difference with spinning are that spinning is to apply external force to some position of object to be processed, and rolling is External force is integrally applied to working position) mode the diameter of cylindrical body is reduced, the size until being suitble to manufacture ignition tip.Rolling The outer diameter of cylindrical body is reduced, while also reducing the macropore of cylindrical body, in order to guarantee the size of centre bore, can be put into and weld The silk comparable metal bar of diameter, the intensity of metal bar is higher than cylindrical body, the product such as diameter, the circularity in such center hole Matter requires also be guaranteed.It, can also be using sides such as spinning, drawing, extruding (being similar to the draw) other than the mode of rolling Formula processes cylindrical body, and processing thought is consistent with the processing method of rolling.If process at normal temperature it is relatively difficult, or In order to improve processing efficiency, cylindrical body can be heated to process again after certain temperature.Cylindrical body after diminution is cut into The length needed processes the shape of ignition tip using the mode of cutting or forging and stamping, is lacked with the front end of cutting sheet processing ignition tip Seam (lacking seam is flat shape), makes conducting block symmetrical above and below, finally process the connection screw thread of ignition tip, tighten plane etc. Other positions.If processing elastic conduction block, need to be processed into small cylinder for ignition tip front end, with milling cutter machining gap, then plus Work lacks seam (lacking seam is flat shape), finally presses the material of gap portions inward simultaneously, some materials is made to generate permanent deformation, So that upper and lower two conducting blocks patch is held together.In order to save process, cancels the processing of notch, small cylinder rear end can be changed to concave ring Form is allowed to play the role of notch.Concave ring be the structure smaller than small cylinder with small cylinder shaft diameter, using cutting or The mode of person's spinning can process together concave ring when processing small column.It, can in order to reduce the difficulty of processing of elastic conduction block It will be reprocessed after the heating of the position.

The processing of common conductive mouth welding wire via hole, is also referred to above method.Especially length is at 100 millimeters or more Overlength ignition tip, the difficulty of processing of welding wire via hole is very big.In one macropore of the centre drill of copper rod when processing, it is inserted into and welding wire Then the comparable plug of diameter carries out rotary pressing processing to the front end of ignition tip, centre bore is reduced.Such benefit is can to incite somebody to action Taper or small cylinder before shrinkage cavity and processing ignition tip are completed together, are saved process time, are improved working efficiency.It is conductive The aperture of mouth rear end is larger, may be used as the via hole of welding wire, as long as aperture is no more than 3 times of gage of wire, to the defeated of welding wire Sending will not impact.By the hole of spinning since aperture is suitable with welding wire before ignition tip, the conductive hole as welding wire is very Suitably.

Above scheme processes scarce seam using the mode of cutting sheet, although method is simple, since cutting will cause largely Dust causes deleterious effect to the health and environment of operator.Therefore scarce seam can be changed to rush by cutting sheet processing Pressure processing.The blank for taking one section of diameter bigger than the cross section of ignition tip, the length of blank enough process the durable conduction of easy processing The amount of mouth.Seam is lacked with stamping die in one end of blank and along axial one thickness of punching of blank, thickness, which lacks, stitches across the center of circle of blank, And it penetrates through.The length that thickness lacks seam is shorter than the length for lacking seam, and thickness is bigger than the thickness for lacking seam.It is one big in the thick centre drill for lacking seam Hole, this macropore are overlapped with the center of circle of blank.Mode reduces blank outer diameter and macropore by the way of rolling, spinning or drawing At the size of easy processing durable ignition tip outer diameter and welding wire via hole, in the process, the length of the scarce seam stamped out also can be therewith Elongated, thickness also can be thinning therewith.In order to ensure welding wire via hole after processing and the size stitched is lacked, can be put in macropore before processing Enter plug as the durable ignition tip welding wire via diameter of easy processing and and lacks the same pellet of seam size.

Method 2: being forged and pressed using mold, first makes mold, and it is that cutting line will be conductive that it is intermediate, which to lack seam, with the durable finished product of easy processing Mouth is cut into two, retains wherein half, then 1-3 blind hole is opened in middle and back.As mould processing forge die cavity plate and Punch-pin.The volume for calculating mold inner-cavity prepares cuboid blank according to the boundary dimensions of this volume and combination product, will be rectangular Body blank is put into mold and carries out forging and forming to it.Connecting column is made, the outer diameter of connecting column middle section is more slightly larger than blind hole outer diameter, The outer diameter at both ends is more slightly smaller than blind hole, and length is slightly larger than twice of blind hole depth.Molding die is made, with easily molded ignition tip finished product For the upper die and lower die of modelling molding die.The semi-finished product of preamble forging and forming are put into such as lower die, connecting column is inserted into In the blind hole of semi-finished product, then a semi-finished product are taken, the blind hole of semi-finished product is directed at pedestal, lower die is depressed, two pieces of semi-finished product are made Polygon ignition tip, the minute-pressure of upper and lower two elastic conduction blocks are joined together to form under the interference fit of connecting column and blind hole Processing can be synchronously completed in this process.Finally process other positions such as the welding wire via hole of ignition tip and the connection screw thread at rear portion. It can cancel connecting column in order to keep production processing most simplified according to the principle of the method, directly allow two pieces of semi-finished product using concave-convex Mode interference connection.The interference connection of concavo-convex manner is divided into end compression interference connection and connects two kinds with side pressure interference.This method is logical Conducting block is processed when crossing forging and stamping semi-finished product, then two semi-finished product are connected to form ignition tip by connecting column interference, Process Energizer, which reduces drilling and milling, the modes such as cuts processes, and so that process is only generated seldom waste material, has saved material cost. Ignition tip is fabricated to polygon, eliminates the work that plane 4 is tightened in processing.Conducting block self-assembling formation, without carrying out additionally Seam processing is lacked, production efficiency is improved.

The beneficial effects of the present invention are: saying from composed structure, the durable ignition tip of easy processing eliminates connection sheet, composition knot Structure is simpler, makes production more efficient quick.It is said from the internal structure of ignition tip, the durable ignition tip of easy processing is without complexity The engraved structure either scarce seam of " slot for being similar to ' Y ' shape " instead flat shape, can be easily using cutting sheet Processing.(spinning, drawing, extruding) is rolled again using first punching press notch and processes scarce seam at the method for scarce seam, is avoided and is produced by cutting Raw dust keeps processing method more environmentally-friendly.Semi-finished product are manufactured using the mode of forging and stamping, then semi-finished product are subjected to interference connection and are added Work ignition tip finished product, process Energizer, which reduces drilling and milling, the modes such as cuts processes, and so that process is only generated seldom waste material, saves About material cost.Ignition tip is fabricated to polygon, eliminates the work that plane is tightened in processing.Conducting block self-assembling formation, no With additional scarce seam processing is carried out, production efficiency is improved.Bore macropore on blank, then with rolling (spinning, drawing, extruding) Mode reduces macropore, drops the difficulty of processing of ignition tip welding wire via hole (for diameter less than 0.8 millimeter, length is at 40 millimeters or more) It is low.The durable version of easy processing of the invention is versatile and flexible, and difficulty of processing is small, speed is fast, is convenient for large-scale production, cost It is low.Cutting sheet is common machining tool, is easily obtained, and machining tool (equipment) cost is also very low.Ignition tip inner hole uses rolling The form processing for pressing (spinning, drawing), reduces manufacture difficulty.

Be the size for being slightly less than gage of wire by the width design of conducting block, no matter how how conducting block wears, conducting block it Between all will not mutually contradict, conducting block can provide more materials and wear for welding wire, and the service life of ignition tip obtains into one The raising of step.This scheme is particularly suitable for using on major diameter welding tip.

After conductive hole abrasion becomes larger, conductive hole is repaired after secondary operation is carried out to it, keeps ignition tip front end cylindrical body whole The all material in a section can be ground for welding wire.Big via hole is big, and conductive hole is small, and welding wire is pierced by through big via hole from conductive hole, weldering Silk only wears conductive hole, and welding wire will not be contacted with the hole wall of the big via hole within the scope of the certain length of conductive hole rear portion, should The big via hole at position will not advanced wear, therefore ignition tip may be reused many times, and service life further increases.Yi Jia The welding wire via hole that the durable ignition tip welding wire of work crosses boring ratio common conductive mouth is big, makes to process simpler be easy.Ignition tip is full envelope Structure is closed, seam is not lacked, also just not having to splash enters the case where lacking seam, eliminates the trouble that cleaning is splashed.Furthermore conductive Mouth welding wire via hole is easy the problem of blocking also because the internal diameter of via hole becomes larger and is well solved.

Detailed description of the invention

Fig. 1 is the structure chart of the durable ignition tip of easy processing.

Fig. 2 is the structure chart of the durable ignition tip of easy processing of flexible conducting block.

Fig. 3 is the structure chart for having the durable ignition tip of easy processing for thickening conducting block.

Fig. 4 is the cross-sectional view that there is the durable ignition tip of the easy processing of conductive hole on head.

Fig. 5 is the durable ignition tip layout figure of easy processing

Fig. 6 is the durable ignition tip layout figure of easy processing

Fig. 7 is that the rear end for the cylindrical body that the durable ignition tip manufacturing procedure figure-of easy processing is used to process conducting block has concave ring.

Fig. 8 is that the centre for the cylindrical body that the durable ignition tip manufacturing procedure figure-of easy processing is used to process conducting block has flat shape Lack seam.

Fig. 9 is the finished product cross-sectional view for having the durable ignition tip of the easy processing of concave ring on elastic conduction block.

Figure 10 is the durable ignition tip layout figure of easy processing

Figure 11 is the durable ignition tip layout figure of easy processing

Figure 12 is the structure chart of conductive composition block.

Figure 13 is the structure chart of cuboid blank.

Figure 14 is the processing that two pieces of conductive composition blocks are carried out to the durable ignition tip of easy processing of interference connection using connecting column Schematic diagram.

Figure 15 is the structure chart of polygon easy processing ignition tip.

Figure 16 is the structure chart of conductive composition concave block.

Figure 17 is the structure chart of conductive composition convex block.

Figure 18 is the durable ignition tip layout figure of easy processing.

Figure 19 is the durable ignition tip structure chart of easy processing of even column structure.

Figure 20 is the durable ignition tip structure chart of easy processing of cylindrical structure.

Figure 21 is that have the durable ignition tip structure chart of the easy processing of straight notch.

Figure 22 is structure chart of the notch on the durable ignition tip of easy processing of conical cylinder structure.

Figure 23 is that do not have the durable ignition tip structure chart of easy processing jaggy.

Figure 24 is the structure chart for having the durable ignition tip of easy processing of multiple scarce seams.

Number meaning in figure: 1-, which is lacked, to be stitched, 2- welding wire, 3- connection screw thread, and 4- tightens plane, 5- conducting block, 6- elastic conduction Block, 7- notch, 8- thickening conducting block, 9- positioning cambered surface, the big via hole of 10-, 11- conductive head, 12- conductive hole, 13- blank, 14- add Work macropore, 15- process main body, and 16- processes shape, and 17- processing lacks seam, pressure conducting block, and 18- processing connection screw thread tightens plane, 19- processes cylindrical body, 20- machining gap, and 21- processing lacks seam, and 22- presses conducting block, 23- concave ring, 24- welding wire via hole, 25- processing Thickness, which lacks, stitches, 26- processing conducting block, 27- conductive composition block, 28- blind hole, the rear portion 29-, 30- cuboid blank, 31- connecting column, The durable ignition tip of 32- polygon easy processing, 33- conductive composition concave block, 34- shrinkage pool, 35- boss, 36- conductive composition convex block, 37- Main outline, 38- processing head are processed, 39- processing connection screw thread tightens plane, welding wire via hole.

Specific embodiment

Embodiment 1: as shown in Figure 1, opening one in the front end of common conductive mouth is about 2-30 millimeters long, wide about 0.01-6 milli The scarce seam 1 of the flat shape of rice.Two conducting blocks up and down need to be divided into for ignition tip front end by the center of circle of ignition tip inner hole by lacking seam 1 5.In order to avoid mismachining tolerance causes to lack seam 1 and the dislocation of ignition tip inner hole, difficulty of processing is reduced, selects thickness than ignition tip inner hole The bigger cutting sheet of diameter.1 width of scarce seam being cut into this way is just bigger than inner hole, even if occurring deviation when processing, in ignition tip Hole and scarce seam 1 will not misplace.Finally collapse two 5 heads of conducting block, easily suitably toward internal pressure upper and lower two conducting blocks 5 Durable ignition tip is processed just to complete the process.In use, welding wire 2 is inserted into ignition tip inner hole and is pierced by from the conducting block of front end 5.This When conducting block 5 gap equal with 2 diameter of welding wire strutted by welding wire 2, when conducting block 5 is worn at equal with 2 diameter of welding wire Circular hole when, observe and whether have the gap between two conducting blocks 5 up and down, such as have the gap, then after again holding together conducting block 5 to internal pressure again Continue to weld, until pasting completely until leading upper and lower two electric blocks 5.

Embodiment 2: as shown in Fig. 2, the present embodiment need to select High strength, high conductivity copper material such as chromium-zirconium-copper, phosphorus Copper, tin bronze etc. make the durable ignition tip of easy processing.For the ease of processing, cylindrical body is first processed into the front end of ignition tip, circle Cylinder is about 2-30 millimeters, and the diameter of cylindrical body takes 2.5-5 times of 2 diameter of welding wire.Two are opened mutually in the rear end of the cylindrical body Symmetrical notch 7 makes 2-4 times that is left 2 diameter of material thickness welding wire of part between two notches 7.It is lacked with cutting sheet processing Seam 1, lack seam 1 pass through ignition tip inner hole the center of circle, it is parallel with notch 7, lack seam 1 heel the middle part of notch 7 or in after Portion, it is therefore an objective to when holding together the pressure of elastic conduction block 6, lacks 1 heel of seam and provide support to elastic conduction block 6, it is easy to process.Lack seam 1 Length is suitable with the length of cylindrical body, with a thickness of 1-3 times of 2 diameter of welding wire, and ensures the thickness of elastic conduction block 6 at notch 7 It is 0.3-2 millimeters.It is finally exactly to hold together the two symmetrical pressures of elastic conduction block 6, it, can be by scarce seam 1 if pressure holds together still more difficult Thickness suitably increases.The material thickness at 7 position of notch is controlled at 0.3-2 millimeters, it is therefore an objective to bullet conducting block 6 be made to have bullet appropriate Power.The depth of control notch 7 can control the thickness of material at notch 7, and the size of 6 elastic force of elastic conduction block is adjusted with this.It will The lesser cylindrical body of diameter is processed into ignition tip front end, and the material at notch 7 can be made to narrow, and thus can increase its thickness, Reduce the difficulty of processing of elastic conduction block 6.The rear end of cylindrical body is changed to the structure of concave ring 23, concave ring 23 and cylindrical body are coaxial, Diameter is smaller than cylindrical body.Such as using the processing of the method for cutting or spinning, concave ring 7 can be synchronously completed when processing cylindrical body, be saved It has gone the time of machining gap 7, it is more efficient.

Common conductive block 5 can also be with machining gap 7 or concave ring 23.

Embodiment 3: as shown in figure 3, in order to further increase the service life of ignition tip, it is necessary to more materials are provided and supplied Ignition tip abrasion.The cylinder diameter of ignition tip front end is increased to 3.2-5 times of 2 diameter of welding wire, cylindrical body is about 4-15 milli Rice.The material of cylindrical body two sides is cut away, first vertical cut 2-10 millimeters from front to back, is then chamfer again toward ignition tip outer, two sides Removed part is symmetrical structure.The remaining part material in centre, which is formed, thickeies conducting block 8, and the width of thick conducting block 8 is smaller In 2 diameter of welding wire.Thickening on the inside of conducting block 8 has positioning cambered surface 9, and positioning cambered surface 9 constrains welding wire 2, guarantees the standard of wire vent True property.The head of upper and lower two thickenings conducting block 8 is slightly lean-in.It is narrower than welding wire 2 to press from both sides 8 thickness of thick conducting block, no matter how to wear, Upper and lower two conducting blocks will not be contradicted mutually always.For using the direct ignition tip for 3 millimeters of welding wires 2, if front It is 12 millimeters that ignition tip diameter, which takes 4 times of 2 diameter of welding wire, subtracts 3.2 millimeters of ignition tip diameter of bore again divided by 2, then unilateral The thickness of conducting block is exactly 4.4 millimeters.4.4 millimeters of thickness can all be supplied to ignition tip abrasion, for the amount ratio of abrasion The diameter of welding wire 2 is 1.4 millimeters out more, and service life is naturally higher than conductive core.And it is referred to embodiment 1 and implements The scheme of the durable ignition tip of easy processing in example 2, it is practical in conjunction with production, it processes common thickening conducting block and elasticity thickeies conducting block. Layout is shown in Figure 11.

If the diameter of welding wire via hole 24 is 1.2 millimeters, lack seam 1 with a thickness of 1 millimeter, the conducting block 5 that thus processes With on elastic conduction block 6 also at making positioning cambered surface 9.Positioning cambered surface 9 can be arc, be also possible to flat shape.

The mode that the processing of thickening conducting block 8 can be cut obtains, and the material of ignition tip cylindrical body two sides is cut away with cutting sheet Then material is chamfer toward ignition tip outside again first against vertical cut 2-10 millimeters from front to back of cylindrical body inner hole (welding wire via hole) edge, The part two sides of excision are consistent.Processing, which thickeies conducting block 8, to be processed with the mode of milling, mill on the head of cylindrical body Left and right two 2-10 millimeters is faced directly out, then mills inclined-plane again.

Embodiment 4: as shown in figure 4, the front end of the durable ignition tip of easy processing is elongated cylindrical body, the outer diameter of cylindrical body is 2-4 times of 2 diameter of welding wire, 5-20 millimeters of length.The durable ignition tip center of easy processing is big via hole 10, and the aperture of big via hole 10 is 1.1-3 times of 2 diameter of welding wire, big via hole 10 are the channel of welding wire 2.The head of ignition tip is conductive head 11, in conductive head 11 The heart is conductive hole 13, and conductive hole 12 and big via hole 10 are on same axis.The aperture of conductive hole 12 is suitable with 2 diameter of welding wire, In favor of for welding wire 2 it is conductive.After welding wire 2 becomes larger the hole abrasion of conductive hole 12, it is by conductive hole that secondary operation is carried out to it 12 repair, then ignition tip can continue to use, and so recycle.The all material of cylindrical body whole cross section can be ground for welding wire 2 Damage, moreover, as long as the length long enough of cylindrical body, ignition tip can be kept using it.If in view of cylindrical body Abrasion can make 2 extension elongation of welding wire too long too much, the ignition tip more renewed after cylindrical body wears 3-10 millimeters.Welding wire 2 is through big Via hole 10 stretches out from conductive hole 12 again, and conductive hole 12, which forms welding wire 2, to be constrained and be that it is conductive.Due to big 10 diameter of via hole Greatly, 12 diameter of conductive hole is small, and welding wire 2 only wears conductive hole 12, and welding wire 2 will not be with 12 rear portion certain length model of conductive hole The hole wall contact of big via hole 10 in enclosing, thus the cylindrical body at the position will not advanced wear, ignition tip can be used normally. The all material of entire cylinder section can wear for welding wire 2, and length is up to 3-10 millimeters, thus service life obtain into One step extends.The welding wire via hole 24 of the aperture ratio conventional conductive mouth of big via hole 10 is big, makes to process simpler and easy.Using leading The technical solution of electric block has between conducting block although improving the service life and electric conductivity of ignition tip and lacks seam 1, conductive Mouth is close from molten bath, splashes when welding inevitably splash to lack and go in seam 1.This programme does not lack seam 1, is full-closed structure, also There is no spatter to splash the case where lacking seam 1.Ignition tip welding wire via hole 24 is easy the problem of blocking also due to welding wire via hole 24 increases are solved very well.The main material of ignition tip is copper, and quality is softer, and the cylinder wall thickness for providing abrasion also only has 1-3 Millimeter carries out secondary operation reparation conductive hole 12 to it and is also easy to.

Embodiment 5: taking one section of copper or copper alloy and is the blank 13 of cylindrical body, and the diametric requirements of blank 13 compare ignition tip Maximum cross-section it is big.A macropore is bored centered on the blank center of circle, aperture is the one third of cylindrical body outer diameter to half. Due to being relatively large in diameter for cylindrical body, the diameter in hole also accordingly becomes larger, either drilling either punch, used drill bit or The diameter of formed punch also becomes larger therewith.The drill bit or formed punch that major diameter thus can be used are processed, and such benefit is The tooling strength for processing hole is high, it is not easy to damage and fracture；Bigger power can be applied when processing hole, improve penetration rate；Add Work tool can also be longer, and the hole of processing is also elongated therewith.After hole machined is good, just by the diameter of cylindrical body by the way of rolling It reduces step by step, the size until being suitble to manufacture ignition tip.Rolling reduces the outer diameter of cylindrical body, while also reducing macropore, In order to guarantee the size of centre bore, can be put into the comparable metal mandrel of 2 diameter of welding wire, the intensity of metal mandrel is than blank Intensity it is higher, the quality requirements such as diameter, the circularity in such center hole can also be guaranteed.In addition to the mode of rolling Outside, spinning can also be used, the modes such as drawing process cylindrical body, the processing method of processing thought and rolling basic one It causes.If processing at normal temperature relatively difficult, or in order to improve processing efficiency, will can be processed again after blank heating.It will Cylindrical body after diminution cuts into the length of single ignition tip, processes ignition tip using the mode of cutting, spinning, forging and stamping, extruding Shape.With the scarce seam 1 of cutting sheet processing ignition tip front end, conducting block 5 symmetrical above and below, inside minute-pressure conducting block are made 5.It finally cuts connection screw thread 3 and plane 4 is tightened in milling, layout is shown in Fig. 5.If processing elastic conduction block 6, first will Small cylinder is processed on the head of ignition tip, with milling, is bored the mode machining gap 7 that perhaps cuts and is added again with milling or the mode cut Work lacks seam 1, finally presses the material at 7 position of notch inward simultaneously, some materials is made to generate permanent deformation, makes two bullets up and down Property conducting block 6 patch hold together.Layout is shown in Fig. 6.In order to reduce the difficulty of processing of elastic conduction block 6, which can be heated Add again afterwards.

Elastic conduction block 6 can be obtained by the ironed mode of the material by rear end.Elastic conduction block 6 can also be without lacking Mouth 7.Seam is lacked since the front end of ignition tip needs to process, so position can not process welding wire via hole 24.

In order to further reduce process, working efficiency is improved, processing cost is reduced.Small when processing small cylinder Cylindrical body backend synchronization processes a concave ring 23, and the structure of concave ring 23 is shown in Fig. 7.Concave ring after processing is completed, then cuts and lacks seam 1, adds When work lacks seam 1, the heel of seam 1 is lacked as far as possible at the middle part or middle and back of concave ring 23, Fig. 8 is seen, in order to below by two elasticity The processing that the pressure of conducting block 6 is held together.The durable ignition tip finished product of the easy processing completed the process is shown in Fig. 9.The rear end of elastic conduction block 6 has recessed Ring, instead of the function of notch 7, can with small cylinder synchronous processing, it is time saving and energy saving.

Above scheme is processed using the mode of cutting sheet and lacks seam 1, although method is simple, since cutting will cause largely Dust causes deleterious effect to the health and environment of operator.Therefore scarce seam 1 can be changed to forge by cutting sheet processing Pressure processing.The blank for taking one section of diameter bigger than the cross section of ignition tip, the length of blank enough process the durable conduction of easy processing The amount of mouth.Seam is lacked with forge die in one end of blank and along axial one thickness of pressure of blank, thickness, which lacks, stitches across the center of circle of blank, And it penetrates through.The length that thickness lacks seam is shorter than the length for lacking seam 1, and thickness is bigger than the thickness for lacking seam 1.It is one big in the thick centre drill for lacking seam Hole, this macropore are overlapped with the center of circle of blank.Mode is by blank outer diameter and big by the way of rolling, spinning, drawing or extruding Hole dwindles into the size of easy processing durable ignition tip outer diameter and welding wire via hole 24, in the process, the length of the scarce seam processed Also can be elongated therewith, thickness also can be thinning therewith.It, can before processing in order to ensure the size of welding wire via hole 24 and scarce seam 1 after processing With the plug that is put into as the durable ignition tip welding wire via diameter of easy processing in macropore and and lack the same core of 1 size of seam Block.Then it cuts or forges and presses shape, while by the minute-pressure inside of conducting block 5.It finally cuts connection screw thread 3 and plane 4 is tightened in milling. Layout is shown in Figure 10.The processing of elastic conduction block 6 is also referred to the method processing.

If scarce seam 1 is made thick, it can also be processed in a manner of forging and pressing by direct, it is not necessary to which the thick seam that lacks of first processing adds again Work lacks seam 1, to save processing cost and shorten process time.

Embodiment 6: production model, the front end of model is conducting block 5, and centre is blind hole 28, and rear end is rear portion 29, model Concrete shape is as shown in figure 12.The cavity plate and punch-pin of forge die are processed according to the structure of model.The volume of mold inner-cavity is calculated, Blank cuboid blank 30 (such as Figure 13) is prepared according to the boundary dimensions of this volume and combination product.Cuboid blank 30 is put Enter mold and carry out forging and forming to it, cuboid blank 30 becomes conductive composition fast 27 after forging and forming, if conductive group Closing fast 27 uses a procedure impossible, and multiple working procedure can be used.Connecting column 31 is made, 31 middle section of connecting column Outer diameter is more slightly larger than 28 outer diameter of blind hole, and the outer diameter at both ends is more slightly smaller than blind hole 28, and length is slightly larger than twice of 28 depth of blind hole.It is fabricated to Product mold, using the structure of polygon easy processing ignition tip 37 as the upper die and lower die of modelling mold.By conductive composition fast 27 It is put into as in lower die, connecting column 31 is inserted into the blind hole 28 of conductive composition fast 27, then take conductive composition fast 27, it will be conductive The blind hole 28 for combining fast 27 is directed at connecting column 31, and upper mold is depressed, makes two conductive compositions fast 27 in connecting column 31 and blind hole 28 Interference fit effect under be joined together to form the durable ignition tip 32 of polygon easy processing (see Figure 14).It is easy finally to bore polygon Process other positions such as the welding wire via hole 24 of durable ignition tip 32 (see Figure 15) and the connection screw thread 3 at processing rear portion 29.

In order to be more easier the processing for processing welding wire via hole 24, hole that can be larger with subdrilling, then pass through spinning, rolling Pressure, drawing or the mode of rolling reduce hole.

In order to keep production processing most simplified, connecting column 31 can be cancelled, directly by two pieces of semi-finished product by the way of concave-convex Interference connection.The punch-pin and cavity plate of the structure fabrication forge die of the conductive composition concave block 33 according to shown in Figure 16, are then forged and pressed Conductive composition concave block 33 has shrinkage pool 34 if a procedure, which is unable to complete, is segmented into multiple working procedure in conductive composition concave block 33 With boss 35.The punch-pin and cavity plate of the structure fabrication forge die of the conductive composition convex block 36 according to shown in Figure 17, if together Process, which is unable to complete, is segmented into multiple working procedure, there is shrinkage pool 34 and boss 35 on conductive composition convex block 36, then forges and presses conductive group Close convex block 36.Finished product die is made, according to the structure fabrication upper die and lower die of finished product.Conductive composition concave block 33 is put into lower die, Then conductive composition convex block 36 is placed in conductive composition concave block 33, it is convex that the shrinkage pool 34 of conductive composition concave block 33 is directed at conductive composition The boss 35 of block 36, the boss 35 of conductive composition concave block 33 are directed at the shrinkage pool 34 of conductive composition convex block 36, and upper mold pushes, will be conductive It combines concave block 33 and the pressure of conductive composition convex block 36 is held together, form interference connection.In order to form the effect of interference connection, the ruler of shrinkage pool 34 The very little undersized than boss 35, the size of boss 35 is more bigger than the size of shrinkage pool 34 in turn.It is recessed for the ease of pressing The size of 34 upper end of hole should be more bigger than lower end, to facilitate the entrance of boss 35.The size of 35 upper end of boss should compare in turn Lower end is smaller, to facilitate the entrance of shrinkage pool 34.The form to be formed is connected with interference using forging and stamping and manufactures ignition tip, and process is most Amount, which reduces drilling and milling, the modes such as cuts processes, and so that process is only generated seldom waste material, has saved material cost.By ignition tip system It is made polygon, eliminates the work that plane 4 is tightened in processing.Conducting block self-assembling formation is processed without carrying out additional scarce seam 1, Improve production efficiency.

Shrinkage pool 34 and boss 35 can run through the cross section of conductive composition concave block 33, and shrinkage pool 34 and boss 35 may also extend through and lead The cross section of electricity combination convex block 36.In this way, which conductive composition concave block 33 and conductive composition convex block 36 can be from sides to progress Interference connects (direction vertical with Figure 14).

One conductive composition concave block 33 above can be with only one shrinkage pool 34 or a boss 35, conductive composition convex block 36 It above can also be with only one shrinkage pool 34 or a boss 35.

It, can be by notch 7, concave ring 23 when processing conductive composition fast 27, conductive composition concave block 33, conductive composition convex block 36 It processes together.

When being interference fitted conductive composition block, can be put into hold together with the comparable plug of gage of wire, pressure in centre Extract plug out again afterwards, hollow parts become as welding wire via hole 24.For the ease of processing, blind hole 28, shrinkage pool 34, boss 35 should be kept away Snap the Working position of a via hole 24.It is pre-processed in the position of welding wire via hole 24 or when being processed to conductive composition block Groove.

Embodiment 7: as shown in figure 18, blank 13 is processed into ignition tip by the way of cutting, spinning or rolling Main outline, emphasis is the cylindrical body for processing the rear portion 29 and front end of ignition tip, when being processed by the way of rolling, ignition tip Rear portion 29 is processed as an entirety, or the cylindrical body of front end is processed as an entirety, and so on.Main outline After processing, the mode for reusing milling processes the cylindrical body of ignition tip front end, and the head portion of need of cylindrical body mills more removes some materials, adds Behind the good side of work, the other side is reprocessed, two sides are symmetrical.Cylindrical body inswept after processing, rear end is wide, and section of cylindrical body front end Face shape is track type.Seam 1 is lacked with the direction cutting that the machined surface of cylindrical body is vertical, the length for lacking seam 1 is suitable with cylindrical body.Most The welding wire via hole 24 of post-processing ignition tip, connection screw thread 3 and tighten plane 4.

The cylindrical body of ignition tip front end processes the processing for directly carrying out lacking seam 1 afterwards, conducting block front and back end in the embodiment Size it is consistent, it is such conduction this block also can be used.If it is intended to the size of ignition tip front end is a little bit smaller, can also take First conducting block pressure is held together, then cuts the mode of conducting block front end material and realizes.

Welding wire via hole 24 can when ignition tip also in blank 13 in the state of process, welding wire via hole can be directly processed into With the comparable hole of 2 diameter of welding wire.

Embodiment 8: under normal conditions, welding wire 2 is the more to grind the more big by the aperture of welding wire via hole 24, but also do not arrange in use The possibility only put to one to abrasion except welding wire 2.The case where wearing in order to avoid welding wire 2 to the direction of scarce seam 1, can be in conduction Angular adjustment gasket is added in the rear portion 29 of mouth.When finding that welding wire 2 is worn toward the direction for lacking seam 1, lower angle adjusting gasket can use, Then ignition tip is tightened on welding gun again.After taking out angular adjustment gasket, the depth that ignition tip is screwed into is deeper, this Sample, lack seam 1 angle will change, so as to avoid welding wire 2 towards it is scarce seam 1 rectangular abrasion.When the conduction of discovery welding wire 2 After performance dies down, the angular adjustment gasket of another thickness is added, the wear direction of welding wire 2 changes again, such as conductive at this time The electric conductivity of mouth is good, then can continue to use.

Centered on welding wire 2, lacks seam 1 and be divided into the two scarce sealings in left and right, two scarce sealings are distributed in 180 degree.In order to Achieve the purpose that adjust and lack 1 angle of seam, therefore the thickness of adjusting gasket cannot be the integral multiple or two of the screw pitch of connection screw thread 3 The integral multiple of/mono- screw pitch.For example, the screw pitch of connection screw thread 3 be 1, then the thickness of adjusting gasket cannot be 1 and 0.5 it is whole Several times.If the quantity of conducting block is 3,3 scarce sealings are just had, if the angle that each adjacent two lacks between sealing is 120 degree, then the thickness of angular adjustment gasket cannot be the integral multiple of the screw pitch of connection screw thread 3, one third screw pitch it is whole The integral multiple of several times and three point of two screw pitch.And so on.

There is no limit for the quantity of conducting block in ignition tip of the present invention.

Conducting block 5, thickeies the different technologies scheme that conducting block 8 is the durable ignition tip of easy processing at elastic conduction block 6, can be with It is referred to as conducting block, same conductive composition block (27), conductive composition concave block (33), conductive composition convex block (36) may be collectively referred to as leading Electric combination block.

It is above to tell only presently preferred embodiments of the present invention, it is not limitation to appeal embodiment, it is all in essence of the invention Made any modifications, equivalent replacements, and improvements within mind and principle, should all include protection scope of the present invention.

Claims

1. a kind of manufacturing method of easy processing Durable welding ignition tip, it is characterized in that: conducting block is that processing lacks in ignition tip front end (1) is stitched to obtain；

Either, conducting block is first to process thick lack in the front end of ignition tip to stitch, then the scarce seam of thickness is processed into lack to stitch and is obtained；

Either, conducting block is that conductive composition block is carried out to interference connection to obtain；

Either, conducting block is obtained by the part hole wall of excision left and right sides welding wire via hole (24).

2. a kind of manufacturing method of easy processing Durable welding ignition tip, it is characterized in that: ignition tip is that blank (13) is passed through processing Macropore (14) is processed main body (15), is processed shape (16), is processed and is lacked seam, pressure conducting block (17), is finally processed connection screw thread, is twisted Tight plane (18) forms；

Either, ignition tip is that blank (13) logical processing macropore (14) is processed main body (15), processed cylindrical body (19), processing Notch (20) is processed and lacks seam (21), presses conducting block (22), finally processes connection screw thread, tightens plane (18) and form；

Either, ignition tip is that blank (13) are lacked seam (25) by the way that processing is thick, processes macropore (14), processes main body (15), add Work shape (16) finally processes connection screw thread, tightens plane (18) and form；

Either, ignition tip is to process blank (13) main body (15) by processing macropore (14), processes cylindrical body (20), adds Work conducting block (26) finally processes connection screw thread, tightens plane (18) and form；

Either, ignition tip is by the way that cuboid blank (30) is processed into conductive composition block (27), then by two conductive groups It closes block (27) and is connected by blind hole (28) with connecting column (31) progress interference, finally process welding wire via hole (24) and rear portion (29) Connection screw thread (3) form；

Either, ignition tip is by the way that cuboid blank (30) is processed into conductive composition concave block (33) and conductive composition convex block (36), shrinkage pool (34) is then carried out interference with boss (35) to connect, is finally processed welding wire via hole (24) and rear portion (29) Connection screw thread (3) forms；

Either, ignition tip is by blank (13) by processing main outline (37), and processing head (38) processes and lacks seam (21), pressure Conducting block (22), finally process connection screw thread, tighten plane, welding wire via hole (39) forms.

3. the manufacturing method of easy processing Durable welding ignition tip according to claim 1, it is characterized in that: welding wire via hole (24) It is to be obtained by first processing macropore, then by the mode that macropore reduces；When processing, plug is put into macropore；

Either, welding wire via hole (24) is after carrying out interference connection using external force to conductive composition block, to reprocess welding wire via hole (24) mode obtains；

Either, welding wire via hole (24) is to be obtained to conductive composition block using the mode that external force carries out interference connection；When processing, The centre of conductive composition block is put into plug；

Either, welding wire via hole (24) is that direct processing and the mode in the comparable hole of gage of wire obtain.

4. the manufacturing method of easy processing Durable welding ignition tip according to claim 1 or 2, it is characterized in that: conductive group Closing on block (27) has blind hole (28), and in addition there are also connecting column (31), connecting column (31) and blind hole (28) are interference fitted；Either, There are shrinkage pool (34), boss (35) in conductive composition concave block (33), conductive composition convex block (36), it is recessed in conductive composition concave block (33) Boss (35) interference fit on hole (34) and conductive composition convex block (36) or the boss in conductive composition concave block (33) (35) it is interference fitted with the shrinkage pool (34) on conductive composition convex block (36).

5. the manufacturing method of easy processing Durable welding ignition tip according to claim 1 or 2, it is characterized in that: in conduction Mouth front end processes cylindrical body, while processing cylindrical body, processes a concave ring (23) in cylindrical body backend synchronization, then directly adds Work lacks seam (1), and finally pressure holds together conducting block, processing connection screw thread (3), processes and tighten plane (4)；

Either, when processing thick scarce seam, there is pellet in the scarce seam of thickness；

Either, when processing ignition tip, the material of processing ignition tip is heated；

Either, the mode of increase and decrease angular adjustment gasket is taken to adjust the angle for lacking seam (1) in ignition tip rear portion (29).

6. a kind of easy processing Durable welding ignition tip lacks seam (1) and passes through conduction it is characterized in that: the front end of ignition tip, which has, lacks seam (1) The welding wire via hole (24) of mouth lacks seam (1) for ignition tip and is divided into upper and lower two conducting blocks, and conducting block constrains welding wire (2), It is conductive for welding wire (2), and worn for welding wire (2)；

Either, the center of ignition tip is big via hole (10), and the head of ignition tip has conductive head (11), the center of conductive head (11) It is conductive hole (12), conductive hole (12) and big via hole (10) are on same axis, and conductive head (11) carries out about welding wire (2) Beam is that welding wire (2) are conductive, and wear for welding wire (2).

7. easy processing Durable welding ignition tip according to claim 6, it is characterized in that: the rear end of conducting block is jagged (7) Or concave ring (24)；Either conducting block front end is narrower than rear end；The size of either conducting block front and rear end is consistent；

There are multiple scarce seams (1) in the front end of either ignition tip.

8. easy processing Durable welding ignition tip according to claim 6, it is characterized in that: conducting block is to lack seam (1) by processing After formed；It is either lacked to stitch to process by thickness and lacks seam (1) and formed；Either it is formed by connecting by conductive composition block by interference；

Welding wire via hole (24) is obtained by way of processing with welding wire (2) comparable hole of diameter；Either first process macropore again It is obtained after macropore is reduced；

Ignition tip is formed by connecting by conductive composition block (27), conductive composition concave block (33), conductive composition convex block (36) interference, conductive Combination block (27), conductive composition concave block (33) have blind hole (28), shrinkage pool (34), boss (35) on conductive composition convex block (36), separately It is outer that there are also connecting column (31).

9. easy processing Durable welding ignition tip according to claim 6, it is characterized in that: ignition tip is round or polygon Shape；

Either there are positioning cambered surface (9) on conducting block；

Either rear portion (29) angled adjusting gasket of ignition tip.