WO2020052588A1 - High-temperature-resistant and long-life welding contact tip, manufacturing method therefor, and use method thereof - Google Patents

Abstract

A processing method for a high-temperature-resistant and long-life welding contact tip, comprising: 1, processing a gap (1) in the front section of a contact tip; 2, first processing a thick gap to obtain the gap (1); and 3, connecting two conductive combination blocks (27) by means of interference fit. Also provided is a high-temperature-resistant and long-life welding contact tip, wherein 1, the front section of the contact tip has upper and lower high-strength conductive blocks (5), and the conductive blocks (5) have good stability in a high temperature environment; 2, the front section of the contact tip has a thickened conductive block (8), and the width of the thickened conductive block (8) is less than that of a welding wire; 3, the front section of the contact tip is an elongated cylinder, and the head of the cylinder is a conductive head (11) and a conductive hole (12). Also provided is a use method of the high-temperature-resistant and long-life welding contact tip, comprising: 1, after the conductive blocks (5) are worn, and pressing the conductive blocks (5) inward to keep the welding wire in good contact with the conductive blocks (5), and repeating this process, so that the service life of the contact tip can be increased several times; and 2, after the conductive hole (12) is worn, squeezing the conductive hole (12) inward to make the conductive hole (12) smaller, and repeating this process, so that the service life of the contact tip can be increased several times or even more than ten times.

Description

耐高温长寿命焊接导电嘴及其制造方法和使用方法High-temperature-resistant long-life welding contact tip and manufacturing method and using method thereof 技术领域Technical field

本发明所涉及的技术领域为焊接导电嘴及其制造方法，其特点是，导电嘴的前段有缺缝，缺缝将导电嘴分成上下两个导电块，导电块对焊丝进行约束，为焊丝导电，并供焊丝磨损。缺缝是通过切割，过盈连接导电组合块，以及锻压等方式获得。本发明的焊接导电嘴不仅使用寿命长，而且导电性能优良，尤其是能够在大电流的极端高温环境中连续使用。The technical field to which the present invention relates is a welding contact tip and a manufacturing method thereof, which are characterized in that the front end of the contact tip has a gap, and the gap divides the contact tip into two conductive blocks, the conductive block restricts the welding wire and conducts the welding wire. , And for the wire to wear. The gap is obtained by cutting, interference connection of conductive combination blocks, and forging. The welding contact tip of the invention not only has a long service life, but also has excellent conductivity, and can be used continuously in an extremely high temperature environment with large current.

本发明还涉及该导电嘴的使用方法。The invention also relates to a method for using the conductive nozzle.

背景技术Background technique

导电嘴是熔化极气体保护电弧焊的关键零部件，其性能主要体现在两个方面，一个是导电性能。焊接时，送丝机构将焊丝通过导电嘴不断往熔池输送填充金属(焊丝)，电弧将焊丝和母材熔化实现焊接。焊接时，焊丝不断与导电嘴产生摩擦，焊接时间越长，导电嘴摩擦就越严重，导电嘴的内孔就会不断变大，内孔变大，导电性能就变差，因此当导电嘴磨损到一定程度时，就会更换导电嘴。换句话说，一颗新的导电嘴从使用的那刻起，导电嘴的导电性能就会越来越差，焊接品质也会随之越变越差。The conductive tip is a key component of the gas-shielded arc welding of molten electrodes, and its performance is mainly reflected in two aspects, one is conductive performance. During welding, the wire feeding mechanism continuously feeds the filler metal (welding wire) to the molten pool through the conductive nozzle, and the arc melts the welding wire and the base material to achieve welding. During welding, the welding wire constantly rubs against the contact tip. The longer the welding time, the more serious the contact tip friction will be. The inner hole of the contact tip will continue to increase, the inner hole becomes larger, and the conductive performance will be worse. When it reaches a certain level, the contact tip will be replaced. In other words, from the moment a new contact tip is used, the conductivity of the contact tip will become worse and worse, and the welding quality will worsen with it.

为了消除导电嘴磨损给焊接生产带来的诸多不利影响，焊接领域的发明人想了很多办法，都试图来解决这一棘手的难题，因此也诞生了很多关于导电嘴的发明。如日本的一个发明人于1998年6月15日申请的专利，发明名称《焊枪用的导电嘴及焊枪》，发明人石川治，申请号JP16747798A,公开号JP2000000671A，该专利公开了一种新式导电嘴，其关键技术方案是用铜合金的金属丝做成一个类似于弹簧的螺旋体，其内径比焊丝的直径略大，焊丝从螺旋体的内径通过。因此，该发明的导电嘴的结构仍没有发生根本的变化，螺旋体仍然有内孔，焊丝不可避免地与内孔摩擦，焊接时间越长，磨损越多，内孔也就越大，使用寿命和导电性能没有因这种螺旋结构而得到提高。螺旋结构降低了导电嘴的钢度，导电嘴会随焊丝的弧线进行摆动，容易造成焊偏的缺陷。In order to eliminate the many adverse effects of contact tip wear on welding production, the inventors in the welding field have tried many ways to try to solve this difficult problem, so many inventions about contact tips have also been born. For example, a patent filed by a Japanese inventor on June 15, 1998, the invention name "conductor tip and welding gun for welding torch", the inventor Ishikawaji, application number JP16747798A, publication number JP2000000671A, this patent discloses a new type of conductive The key technical solution of the nozzle is to use a copper alloy metal wire to make a spiral body similar to a spring, whose inner diameter is slightly larger than the diameter of the welding wire, and the welding wire passes through the inner diameter of the spiral body. Therefore, the structure of the contact tip of the invention has not changed fundamentally, the spiral body still has internal holes, and the welding wire inevitably rubs against the internal holes. The longer the welding time, the more wear and tear, the larger the internal holes, the longer the service life and The conductivity is not improved by this spiral structure. The spiral structure reduces the rigidity of the contact tip, and the contact tip will swing with the arc of the welding wire, which easily causes the defect of welding deviation.

专利《一种自夹持、长寿命、节能导电嘴》，发明人黄春利，专利号2012205782694，授权公告号CN202894557U。该专利公开的导电嘴由4个独立的零件组成——见该专利说明书及说明书附图里的图1(a)、图1(b)、图1(c)，分别是导电嘴座、导电嘴壳体、弹簧、焊丝夹。综合分析，该导电嘴有如下缺点：1、导电嘴中间有弹簧，使整体长度增加，目前市场上最短的导电嘴长度只有20毫米左右。2、增加了导电嘴壳体，使导电嘴***，不利于狭小空间的焊接。3、因为锥台与锥台之间有间隙，在没有***焊丝的情况下，弹簧的势能会使锥台收缩，导致焊丝夹的中心孔变小，焊丝无法***。4、焊丝夹是通过弹簧存储的势能使焊丝夹收缩，但焊丝夹与导电嘴壳体之间会产生摩擦力，摩擦力的存在，是否会降低焊丝夹收缩的灵敏度。5、导电嘴座需要将来自焊机的电能传导给焊丝夹，但该发明的结构决定了导电嘴座、导电嘴壳体、弹簧、焊丝夹之间只能是接触连接，且接触的力还不能太大，这就使接触电阻增加，电能的传导能力减弱。6、为了使电能的传导更加有效，弹簧只能选择铜合金制造，但导电嘴是在高温环境中使用，铜合金的弹簧在高温环境中会失去弹力，如果弹簧使用耐高温的金属制造，电能的传导效果必然会受到影响。Patent "a self-clamping, long-life, energy-saving conductive nozzle", the inventor Huang Chunli, patent number 2012205782694, authorization bulletin number CN202894557U. The conductive nozzle disclosed in this patent is composed of 4 independent parts-see Figure 1 (a), Figure 1 (b), and Figure 1 (c) in the patent specification and the accompanying drawings of the patent. Nozzle shell, spring, wire clamp. According to comprehensive analysis, this contact has the following disadvantages: 1. There is a spring in the middle of the contact, which increases the overall length. At present, the shortest contact on the market is only about 20 mm in length. 2. The contact nozzle shell is added to make the contact nozzle thicker, which is not conducive to welding in a narrow space. 3. Because there is a gap between the frustum and the frustum, the potential energy of the spring will cause the frustum to shrink without the welding wire inserted, resulting in the center hole of the welding wire clamp becoming smaller and the welding wire unable to be inserted. 4. The welding wire clamp shrinks the welding wire clamp by the potential energy stored by the spring, but there will be friction between the welding wire clamp and the contact tip housing, and the existence of the friction force will reduce the sensitivity of the welding wire clamp shrinkage. 5. The conductive nozzle holder needs to transmit the electric energy from the welding machine to the welding wire clip, but the structure of the invention determines that the conductive nozzle holder, the conductive nozzle housing, the spring, and the welding wire clip can only be connected by contact, and the contact force is also It should not be too large, which increases the contact resistance and weakens the power transmission capacity. 6. In order to make the transmission of electrical energy more effective, the spring can only be made of copper alloy, but the contact tip is used in high temperature environment. The copper alloy spring will lose its elasticity in high temperature environment. If the spring is made of high temperature resistant metal, the electrical energy The conduction effect will inevitably be affected.

专利《长效导电嘴》，发明人石建荣，专利号2010101939023，授权公告号CN101844267B，该专利公开的导电嘴由瓷帽，导电内芯，尾座三部分组成——见该专利说明书及说明书附图里的图1。该导电嘴由导电嘴内芯、瓷帽和尾座组成，增加了导电嘴的长度及外径，不利于在狭小空间的焊接。导电内芯中间是“Y”字形，结构复杂，加工效率低。为了使夹紧块获得很好的弹性，连接片不易太厚(太粗)，但导电嘴是在高温的环境中工作，连接片的温度会很高，弹性也随之降低升至消失。Patent "long-acting conductive nozzle", the inventor Shi Jianrong, patent number 2010101939023, authorization announcement number CN101844267B, the conductive nozzle disclosed in this patent consists of a ceramic cap, a conductive inner core, and a tailstock-see the patent specification and the accompanying drawings Figure 1. The contact tip is composed of a contact tip core, a porcelain cap and a tailstock, which increases the length and outer diameter of the contact tip, which is not conducive to welding in a narrow space. The middle of the conductive inner core is a "Y" shape, the structure is complicated, and the processing efficiency is low. In order to obtain good elasticity of the clamping block, the connecting piece is not easy to be too thick (too thick), but the contact tip works in a high temperature environment, the temperature of the connecting piece will be very high, and the elasticity will be reduced to disappear.

焊接就是顷刻间将熔点高达1350℃的焊丝和母材熔化的过程，焊接时，电弧的温度在 6000-12000℃之间，溶滴的温度为2000℃左右，熔池的温度为1750℃左右，导电嘴离电弧的距离只有10-15毫米，在此情况下，导电嘴的温度会迅速升高到600-800℃。导电嘴能够在如此高温的环境中经受住考验，是发明成败的关键。《长效导电嘴》中的连接片在高温环境中会***，焊丝会把夹紧块撑开，焊丝更加晃动，导电性能不但得不到提高，反而会有大幅度降低。Welding is the process of melting the welding wire with a melting point of 1350 ° C and the base metal in an instant. During welding, the temperature of the arc is between 6000-12000 ° C, the temperature of the molten droplets is about 2000 ° C, and the temperature of the molten pool is about 1750 ° C. The distance between the contact tip and the arc is only 10-15 mm. In this case, the temperature of the contact tip will quickly rise to 600-800 ° C. The ability of the contact tip to withstand the test in such a high temperature environment is the key to the success of the invention. The connecting piece in "Long-Term Conductive Nozzle" will soften in high temperature environment, the welding wire will open the clamping block, the welding wire will shake more, and the conductive performance will not be improved but will be greatly reduced.

发明内容Summary of the Invention

为了克服上述导电嘴结构复杂，生产效率低，成本高，无法在高温环境中使用的缺点，本发明提供了一种结构简单，制造方法多样，易于生产加工，生产效率高，成本低，在高温环境中导电嘴不变形，不软化的焊接导电嘴以及该导电嘴的制造方法。本发明不刻意追求产品功能的多样性，只求以更简单的结构，更利于加工制造的设计，达到耐高温,提高产品生产效率，降低产品生产成本，实现规模化生产，使产品能够快速推广和应用，更易于被社会大众接受，并切实服务于焊接生产的目的。In order to overcome the disadvantages of the complex structure of the above-mentioned contact tip, low production efficiency, high cost, and inability to use in high temperature environments, the present invention provides a simple structure, multiple manufacturing methods, easy production and processing, high production efficiency, low cost, and high temperature. Welding contact tips that are not deformed and not softened in the environment, and a method for manufacturing the contact tips. The invention does not deliberately pursue the diversity of product functions, but only seeks a simpler structure that is more conducive to processing and manufacturing design, to achieve high temperature resistance, improve product production efficiency, reduce product production costs, achieve large-scale production, and enable products to be quickly promoted. And applications, it is easier to be accepted by the general public, and actually serves the purpose of welding production.

本发明提供的技术方案中，不仅耐高温,结构简单，易于加工，生产效率高，生产成本低的优势，还提供了比上述《长效导电嘴》使用寿命更长的导电嘴技术方案，它们不但使用寿命更长，而且结构简单，易于加工，生产成本低,并且同样能够在高温环境中使用。In the technical solution provided by the present invention, not only has the advantages of high temperature resistance, simple structure, easy processing, high production efficiency, and low production cost, but also provides a technical solution of a contact tip with a longer service life than the above-mentioned "long-acting contact tip" Not only has a longer service life, but also has a simple structure, easy processing, low production cost, and can also be used in high temperature environments.

本发明还提供了多种上述导电嘴的制造方法，生产时可以根据不同情况和需要选择其中的一种或者几种，使产品的生产加工变得更加灵活和高效。The invention also provides a plurality of manufacturing methods of the above-mentioned conductive nozzles, and one or more of them can be selected according to different situations and needs during production, so that the production and processing of the products become more flexible and efficient.

本发明解决其技术问题所采用的技术方案是：为了使导电嘴的结构在高温环境中具有足够的稳定性，不至于在使用时软化，就必须提高导电嘴的强度。在现有导电嘴的前段开一条长约2-30毫米长，高约0.01-6毫米的平直形缺缝，平直形的缺缝需通过导电嘴内孔(即焊丝过孔)的圆心，以便将导电嘴前端分成上下两个导电块。应最大限度的提高导电块的厚度和宽度，导电块变得更粗更大，导电块的强度更高。平直形缺缝的高度是焊丝直径的0.1-4倍，必要时可以将导电块向内压,使焊丝与导电嘴充分接触。在导电嘴穿入焊丝后，导电块与焊丝就能充分接触，电能能够很好地从导电嘴传导给焊丝。随着焊接的进行，焊丝将导电块磨磨损，焊丝出现晃动，此时将上下导电块往内压，消除焊丝与导电块之间的间隙，使焊丝不再晃动，则导电嘴可以继续使用。如此重复多次，直到上下导电块完全贴拢(缺缝的间隙为零)。与普通导电嘴相比，该方案提供了更多的材料供焊丝磨损，因此使用寿命高。更关键的是，该方案结构稳定，导电块强度更高能够经受高温的考验而不变形，能够在高温环境中长期使用。The technical solution adopted by the present invention to solve its technical problems is: in order to make the structure of the contact tip have sufficient stability in a high-temperature environment and not to soften during use, the strength of the contact tip must be increased. A straight notch with a length of about 2-30 mm and a height of about 0.01-6 mm is opened in the front section of the existing contact tip. The straight notch needs to pass through the center of the inner hole of the contact tip (that is, the wire through hole). In order to divide the front end of the contact tip into two conductive blocks. The thickness and width of the conductive block should be maximized. The conductive block becomes thicker and larger, and the strength of the conductive block is higher. The height of the straight notch is 0.1-4 times the diameter of the welding wire. If necessary, the conductive block can be pressed inward to make the welding wire fully contact the conductive tip. After the conductive tip penetrates the welding wire, the conductive block and the welding wire can be fully contacted, and electrical energy can be transmitted from the conductive tip to the welding wire. As the welding progresses, the conductive block is worn and worn by the welding wire, and the welding wire shakes. At this time, the upper and lower conductive blocks are pressed inward to eliminate the gap between the welding wire and the conductive block, so that the welding wire no longer shakes, and the conductive tip can continue to use. Repeat this process many times until the upper and lower conductive blocks are completely close (the gap of the gap is zero). Compared with ordinary contact tips, this solution provides more material for welding wire wear, so the service life is high. More critically, the solution has a stable structure, a higher strength of the conductive block can withstand the test of high temperature without deformation, and can be used for a long time in a high temperature environment.

当需要小电流焊接或者是点焊时，为了在使用过程中更加便捷，导电块需具有很好的弹性，但弹力不宜太大，不至于对焊丝产生很大的阻力。加工方法为：把导电嘴的前端加工成规则的圆柱体，圆柱体长约2-30毫米，圆柱体的直径取焊丝直径的1.5-5倍为宜。圆柱体加工完后，在该圆柱体的后端开两个相互对称的缺口，使两缺口之间剩下部分的材料厚度为焊丝直径的2-4倍,缺缝仍为平直形缺缝。缺缝高度为焊丝直径的1-3倍，同时需确保导电块缺口部位的材料厚度为0.3-2毫米。最后就是将两导电块压拢，如果因为材料较硬使两导电块压拢的工作较困难时，可以将缺缝的高度适当增加。将缺口部位的材料厚度控制在0.3-2毫米，目的是使导电块有适当的弹力。因为导电块即要求弹性好(当两个导电块被焊丝磨出一个与焊丝等直径的圆孔时，导电块也能很好地与焊丝贴合)，还要求阻力小(导电嘴刚开始使用时，导电块未磨损，焊丝从导电块通过，此时导电块对焊丝的阻力最大，但这个阻力要求不影响焊丝从导电块轻松通过)，缺口的深浅可以控制缺口处材料的厚度，因此可以通过缺口来调节导电块阻力的大小。由于导电块需要具备适当的弹力，因此称之为弹性导电块。为了使弹性导电块具有合适的弹力，需要在弹性导电块后端额外加工一个缺口，多了一道加工工序。为了进一步简化导电嘴结构，提高加工效率，可以把圆柱体后端改为凹环。凹环也为圆柱形，直径比用于加工弹性导电块的圆柱体小。凹环的结构和圆柱体结构类似，可在加工圆柱体时一 起加工，这样就剩去了加工缺口的工序，凹环的直径比圆柱体小，也起到了在圆柱体上加工缺口一样的作用，但结构却更加简单。此耐高温长寿命导电嘴与导电内芯相比，从组成结构上说，取消了连接片，结构更加简单。缺缝可以用切割片进行切割加工,切割片是常用的金属加工工具，易于获取，且加工工具(设备)的成本也很低。而导电内芯的内部结构为“近似于‘Y’形的槽”，只能用线切割的方式进行加工，线切割不但效率低，切割时的切割液还会使材料氧化，还需要进行清洗，进一步降低了效率，同时费用也更高。When small current welding or spot welding is needed, in order to be more convenient in use, the conductive block needs to have good elasticity, but the elastic force should not be too large, so as not to cause great resistance to the welding wire. The processing method is: the front end of the contact tip is processed into a regular cylinder, the cylinder is about 2-30 mm in length, and the diameter of the cylinder is preferably 1.5-5 times the diameter of the welding wire. After the cylinder is processed, two symmetrical notches are opened at the rear end of the cylinder, so that the material thickness of the remaining part between the two notches is 2-4 times the diameter of the welding wire, and the gap is still straight. . The height of the gap is 1-3 times the diameter of the welding wire. At the same time, the thickness of the material at the notch of the conductive block must be 0.3-2 mm. Finally, the two conductive blocks are pressed together. If the work of pressing the two conductive blocks is difficult due to the hard material, the height of the gap can be appropriately increased. The thickness of the material in the notch is controlled to 0.3-2 mm, so that the conductive block has a proper elasticity. Because the conductive block requires good elasticity (when the two conductive blocks are ground by a wire with a circular hole of the same diameter as the wire, the conductive block can also fit the wire well), and the resistance is also required (the contact tip has just begun to use When the conductive block is not worn, the welding wire passes through the conductive block. At this time, the resistance of the conductive block to the welding wire is the largest, but this resistance requirement does not affect the easy passage of the welding wire from the conductive block.) The depth of the gap can control the thickness of the material at the gap, so it can Adjust the resistance of the conductive block through the gap. Since the conductive block needs to have a proper elastic force, it is called an elastic conductive block. In order to make the elastic conductive block have a proper elasticity, an additional gap needs to be processed at the rear end of the elastic conductive block, and an additional processing step is required. In order to further simplify the structure of the contact tip and improve the processing efficiency, the rear end of the cylinder can be changed to a concave ring. The concave ring is also cylindrical and has a smaller diameter than the cylinder used to process the elastic conductive block. The structure of the concave ring is similar to the structure of the cylindrical body, which can be processed together when processing the cylindrical body. This leaves the process of machining the notch. The diameter of the concave ring is smaller than that of the cylinder, and it also plays the same role as machining the notch on the cylinder. , But the structure is simpler. Compared with the conductive inner core, the high-temperature-resistant and long-life conductive nozzle has a simpler structure in terms of the composition structure, and the connection piece is eliminated. The gap can be cut with a cutting sheet. The cutting sheet is a commonly used metal processing tool, which is easy to obtain, and the cost of the processing tool (equipment) is also low. The internal structure of the conductive inner core is "approximately a 'Y'-shaped groove" and can only be processed by wire cutting. Wire cutting is not only inefficient, the cutting fluid during cutting will also oxidize the material, and it needs to be cleaned. , Which further reduces efficiency and costs more.

上述耐高温长寿命导电嘴没有连接片，导电块内部为平直结构，而非导电内芯的“Y”型结构或者里大外小的镂空结构。内部结构比导电内芯简单，易于加工和生产，成本低效率高。但使用寿命并没有提高，导电嘴提供给焊丝的多于磨损量最多只能与焊丝的直径等厚，这还是假设焊丝只往弹性导电块一侧磨损的极限理想状态，通常情况下导电嘴多提供给焊丝的磨损量只有焊丝直径的二分之一左右。为了进一步体高导电嘴的使用寿命，必须提供更多的材料供导电嘴磨损，方法是将导电嘴的前端加工成圆柱体，圆柱体的直径为焊丝直径的3.2-5倍，圆柱体长约4-20毫米。然后将圆柱体两侧的材料切掉，先由前往后直切2-10毫米，然后再往导电嘴外沿斜切，两侧被切除的部分为对称结构。导电嘴前端只保留中间部分的材料，中间部分材料的厚度略小于焊丝直径。由于导电块的宽度比焊丝略窄，无论导电块怎么磨损，上下两个导电块始终不会相互抵触，因此就可以提供更多的材料供其磨损。以焊丝直接为3毫米的导电嘴为例，如果前面的导电嘴直径取焊丝直径的4倍为12毫米，减去导电嘴内孔直径3.2毫米再除以2，那么单侧导电块的厚度就是4.4毫米。4.4毫米的厚度可以全部提供给导电嘴磨损，可供磨损的量比焊丝的直径还要多出1.4毫米。使用寿命自然比导电内芯更高，这种能提供更过磨损的导电块称之为加厚导电块。参照上述耐高温长寿命导电嘴的方案，结合生产实际，可以分别使用普通导电块和弹性导电块等不同方案。The above-mentioned high-temperature-resistant and long-life conductive nozzle has no connecting piece, and the conductive block has a flat structure inside, instead of a "Y" structure with a conductive inner core or a hollow structure with a large inside and a small outside. The internal structure is simpler than the conductive inner core, easy to process and produce, and has low cost and high efficiency. However, the service life has not improved. The more than the amount of wear provided by the contact tip to the welding wire can only be as thick as the diameter of the welding wire. This is still the ideal state of assumption that the welding wire only wears to the side of the elastic conductive block. Generally, there are many contact tips. The amount of wear provided to the wire is only about one-half of the wire diameter. In order to further increase the service life of the contact tip, more material must be provided for the contact tip to wear. The method is to process the front end of the contact tip into a cylinder, the diameter of the cylinder is 3.2-5 times the diameter of the welding wire, and the length of the cylinder is about 4 -20 mm. Then cut off the material on both sides of the cylinder, first cut straight 2-10 mm from the back, and then cut it obliquely outside the conductive tip. The cut off parts on both sides are symmetrical structures. Only the material of the middle part is retained at the front end of the contact tip, and the thickness of the material of the middle part is slightly smaller than the diameter of the welding wire. Because the width of the conductive block is slightly narrower than that of the welding wire, no matter how the conductive block is worn, the upper and lower conductive blocks will never conflict with each other, so more material can be provided for its wear. Take a 3mm contact tip as an example. If the diameter of the previous contact tip is 12 times 4 times the diameter of the wire, minus the 3.2mm hole diameter of the contact tip and then divide by 2, then the thickness of the single-sided conductive block is 4.4 mm. The thickness of 4.4 millimeters can be all provided to the contact tip for abrasion, and the amount available for abrasion is 1.4 millimeters more than the diameter of the welding wire. The service life is naturally higher than the conductive inner core. This type of conductive block that can provide more wear is called a thickened conductive block. Referring to the above-mentioned solution of high-temperature-resistant and long-life conductive nozzles, and combined with the actual production, different solutions such as ordinary conductive blocks and elastic conductive blocks can be used respectively.

此外，还有比加厚导电块方案使用寿命更高的耐高温长寿命导电嘴。耐高温长寿命导电嘴的前端是细长的圆柱体，圆柱体的外径为焊丝直径的2-4倍，长度5-20毫米，耐高温长寿命导电嘴中心为焊丝的大过孔，大过孔直径比普通导电嘴稍微大，为焊丝直径的1.1-3倍。圆柱体头部是导电头，导电头中心是导电孔，导电孔比大过孔小，直径与焊丝直径相当，导电孔与大过孔在同一条轴线上。焊丝经大过孔从导电孔穿出。当焊丝将导电孔磨大后，可使用外力对导电头向内挤压，使导电孔孔径变小，则导电嘴可继续使用，如此循环。如此一来，圆柱体整个截面的所有材料都可以供焊丝磨损，不仅如此，只要圆柱体的长度足够长，导电嘴就可以一直使用下去。考虑到如果圆柱体磨损太多使焊丝伸出长度过长，当圆柱体磨损3-10毫米后更换新的导电嘴。耐高温长寿命导电嘴大过孔孔径比焊丝大，导电头的导电孔孔径与焊丝相当，焊丝经大过孔从导电孔穿出，导电孔对焊丝形成约束并为其导电。使用过程中，焊丝只会对导电孔处的孔壁进行磨损，由于焊丝不会与导电孔后部一定长度范围内的大过孔孔壁接触，因此该部位不会提前磨损，圆柱体可以正常使用。该方案不仅使整个圆柱体截面的所有材料都可以供焊丝磨损，且可供导电嘴磨损的圆柱体长度达3-10毫米，因此耐高温长寿命导电嘴使用寿命进一步提高。耐高温长寿命导电嘴焊丝过孔直径比传统导电嘴大，焊丝过孔孔径变大，则更加易于加工。采用导电块的技术方案，虽然提高了导电嘴的使用寿命和导电性能，但导电块之间有缺缝，导电嘴离熔池很近，焊接时飞溅难免会溅到缺缝里去，造成清理飞溅的麻烦。本方案为全封闭结构，没有缺缝，省去了清理飞溅的麻烦。并且孔径增大后，导电嘴焊丝过孔容易堵塞的问题也得到很好解决。导电嘴的主要材料是铜，质地较软，圆柱壁厚也只有1-3毫米，导电孔磨损后对其进行二次加工也非常容易。In addition, there is a high-temperature-resistant long-life contact tip that has a longer service life than the thicker conductive block solution. The front end of the high temperature resistant long-life contact tip is an elongated cylinder. The outer diameter of the cylinder is 2-4 times the diameter of the welding wire and the length is 5-20 mm. The diameter of the via hole is slightly larger than that of the ordinary conductive tip, which is 1.1-3 times the diameter of the welding wire. The head of the cylinder is a conductive head, and the center of the conductive head is a conductive hole. The conductive hole is smaller than the large via hole and the diameter is equivalent to the diameter of the welding wire. The conductive hole and the large via hole are on the same axis. The welding wire exits from the conductive hole through a large via. After the conductive hole is enlarged by the welding wire, the conductive head can be squeezed inward with external force to make the conductive hole diameter smaller, and the conductive tip can continue to be used, and this cycle is used. In this way, all materials of the entire cross-section of the cylinder can be used for welding wire wear. Not only that, as long as the length of the cylinder is long enough, the contact tip can be used continuously. Considering that if the cylinder wears too much and the welding wire extends too long, replace the new contact tip when the cylinder wears 3-10 mm. The large via hole diameter of the high temperature resistant long-life conductive tip is larger than that of the welding wire. The conductive hole diameter of the conductive head is equivalent to that of the welding wire. The welding wire penetrates the conductive hole through the large via hole. The conductive hole forms a constraint on the welding wire and conducts it. During use, the welding wire will only wear the hole wall at the conductive hole. Since the welding wire will not contact the wall of the large via hole within a certain length of the rear of the conductive hole, the part will not wear out in advance, and the cylinder can be normal. use. This solution not only makes all the material of the entire cylinder cross-section available for wire wear, but also the length of the cylinder that can be worn by the contact tip is 3-10 mm, so the service life of the high-temperature-resistant and long-life contact tip is further improved. The high-temperature-resistant and long-life conductive tip welding wire vias have a larger diameter than conventional conductive tips, and the larger the diameter of the wire vias, the easier it is to process. Adopting the technical solution of the conductive block, although the service life and conductive performance of the conductive tip are improved, there are gaps between the conductive blocks, and the conductive tip is close to the molten pool. Splashes will inevitably splash into the gap during welding, resulting in cleaning. Trouble of splash. This solution is a fully enclosed structure without gaps, eliminating the need to clean up and splash. In addition, after the hole diameter is increased, the problem that the via hole of the conductive tip welding wire is easily blocked is also well solved. The main material of the contact tip is copper, which has a soft texture and a cylindrical wall thickness of only 1-3 mm. It is also very easy to conduct secondary processing on the conductive hole after it is worn.

本发明的有益效果是：从组成结构上说，耐高温长寿命导电嘴取消了连接片，组成结构更加简单，使生产更加高效快捷。从导电嘴的内部结构上说，耐高温长寿命导电嘴没有复杂的镂空结构或者是“近似于‘Y’形的槽”，取而代之的是平直形的缺缝，使用切割片就能轻易加工。The beneficial effects of the present invention are: in terms of the composition structure, the connection piece is eliminated from the high-temperature-resistant and long-life conductive nozzle, the composition structure is simpler, and the production is more efficient and rapid. In terms of the internal structure of the contact tip, the high-temperature-resistant and long-life contact tip does not have a complicated hollow structure or an "approximately 'Y'-shaped groove". Instead, it is a straight gap that can be easily processed using a cutting blade. .

由于没有连接片，并且还提高了导电块的厚度和宽度，导电块变得更粗更大，导电块的 强度更高。导电嘴的结构会更加稳固，导电块在高温的环境中也能够承受来自焊丝的干扰，导电块不会因此而被焊丝撑开，焊丝与导电块始终保持良好的接触，提高了导电性能，并且在焊接过程中始终维持良好的导电状态。导电块不变形，始终与焊丝保持良好的贴合状态，导电嘴的使用寿命也更久。Since there are no connecting pieces and the thickness and width of the conductive block are also increased, the conductive block becomes thicker and larger, and the strength of the conductive block is higher. The structure of the contact tip will be more stable. The conductive block can also withstand the interference from the welding wire in a high-temperature environment. The conductive block will not be opened by the welding wire because of this. The welding wire and the conductive block always maintain good contact, which improves the conductive performance. Maintains good electrical conductivity throughout the soldering process. The conductive block is not deformed, and it always maintains a good fit with the welding wire, and the service life of the conductive tip is longer.

将导电块的宽度设计为略小于焊丝直径的尺寸，不管导电块怎么磨损，导电块之间都不会相互抵触，导电块可以提供更多的材料供焊丝磨损，导电嘴的使用寿命得到进一步的提高。此方案尤其适合于在大直径焊丝导电嘴上使用。The width of the conductive block is designed to be slightly smaller than the diameter of the welding wire. No matter how the conductive block is worn, the conductive blocks will not conflict with each other. The conductive block can provide more material for the welding wire to wear, and the service life of the conductive tip is further improved. improve. This solution is especially suitable for use on large-diameter wire contact tips.

导电孔磨损变大后，对其进行二次加工后将导电孔修复，使导电嘴前端圆柱体整个截面的所有材料都可以供焊丝磨。大过孔大，导电孔小，焊丝经大过孔从导电孔穿出，焊丝仅对导电孔进行磨损，焊丝不会与导电孔后部一定长度范围内的大过孔的孔壁接触，该部位的大过孔也不会提前磨损，故导电嘴可以重复使用很多次，使用寿命进一步增加。耐高温长寿命导电嘴焊丝过孔比普通导电嘴的焊丝过孔大，使加工更加简单容易。导电嘴为全封闭结构，没有缺缝，也就没有飞溅进入缺缝的情况发生，省去了清理飞溅的麻烦。此外导电嘴焊丝过孔容易堵塞的问题也因为过孔的内径变大而得到很好的解决。After the conductive hole is abraded, the conductive hole is repaired after secondary processing, so that all the material of the entire cross section of the cylinder at the front end of the conductive nozzle can be used for wire grinding. The large via hole is large and the conductive hole is small. The welding wire passes out of the conductive hole through the large via hole. The welding wire only wears the conductive hole. The welding wire does not contact the hole wall of the large via hole within a certain length of the rear of the conductive hole. The large vias of the part will not be worn out in advance, so the contact tip can be reused many times, and the service life is further increased. The high-temperature-resistant and long-life conductive tip welding wire vias are larger than the welding wire vias of ordinary conductive tips, making processing easier and easier. The contact tip is a fully-closed structure, and there are no gaps, and no splashing into the gaps occurs, which saves the trouble of cleaning and splashing. In addition, the problem that the via hole of the conductive tip welding wire is easily blocked is also solved because the inner diameter of the via hole becomes larger.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1是耐高温长寿命导电嘴的结构图。FIG. 1 is a structural diagram of a high-temperature-resistant and long-life conductive tip.

图2是有弹性导电块的耐高温长寿命导电嘴的结构图。FIG. 2 is a structural diagram of a high-temperature-resistant and long-life conductive tip with an elastic conductive block.

图3是有加厚导电块的耐高温长寿命导电嘴的结构图。FIG. 3 is a structural diagram of a high-temperature-resistant long-life contact tip with a thickened conductive block.

图4是头部有导电孔的耐高温长寿命导电嘴的剖视图。4 is a cross-sectional view of a high-temperature-resistant long-life conductive tip having a conductive hole in a head.

图5是耐高温长寿命导电嘴加工过程流程图Figure 5 is a flow chart of the processing process of high temperature resistant and long life contact tip

图6是耐高温长寿命导电嘴加工过程流程图Figure 6 is a flowchart of the processing process of high temperature resistant long life contact tip

图7是耐高温长寿命导电嘴加工工序图-用于加工导电块的圆柱体的后端有凹环。FIG. 7 is a processing diagram of a high-temperature-resistant and long-life conductive nozzle—a concave ring is provided at the rear end of a cylinder used for processing a conductive block.

图8是耐高温长寿命导电嘴加工工序图-用于加工导电块的圆柱体的中间有平直形缺缝。FIG. 8 is a processing diagram of a high-temperature-resistant and long-life conductive nozzle—a straight gap is provided in the middle of a cylinder for processing a conductive block.

图9是弹性导电块上有凹环的耐高温长寿命导电嘴的成品剖视图。FIG. 9 is a cross-sectional view of a finished product of a high-temperature-resistant long-life contact tip with a concave ring on an elastic conductive block.

图10是耐高温长寿命导电嘴加工过程流程图Figure 10 is a flowchart of the process of high temperature resistant long life contact nozzle

图11是耐高温长寿命导电嘴加工过程流程图Figure 11 is a flowchart of the process of high temperature resistant long life contact nozzle

图12是导电组合块的结构图。FIG. 12 is a structural diagram of a conductive combination block.

图13是长方体坯料的结构图。FIG. 13 is a structural diagram of a rectangular parallelepiped blank.

图14是将两块导电组合块使用连接柱进行过盈连接的耐高温长寿命导电嘴的加工示意图。FIG. 14 is a processing schematic diagram of a high-temperature-resistant and long-life conductive nozzle in which two conductive combination blocks are used for interference connection using a connecting post.

图15是多边形耐高温长寿命导电嘴的结构图。FIG. 15 is a structural diagram of a polygonal high temperature resistant long-life conductive tip.

图16是导电组合凹块的结构图。FIG. 16 is a structural diagram of a conductive combination recess.

图17是导电组合凸块的结构图。FIG. 17 is a structural diagram of a conductive composite bump.

图18是耐高温长寿命导电嘴加工过程流程图。FIG. 18 is a flowchart of a high-temperature-resistant and long-life processing nozzle.

图19是偶柱体结构的耐高温长寿命导电嘴结构图。FIG. 19 is a structural diagram of a high-temperature-resistant and long-life conductive nozzle with a dual-pillar structure.

图20是圆柱体结构的耐高温长寿命导电嘴结构图。FIG. 20 is a structural diagram of a high-temperature-resistant and long-life conductive tip with a cylindrical structure.

图21是有平直缺口的耐高温长寿命导电嘴结构图。FIG. 21 is a structural diagram of a high-temperature-resistant and long-life conductive tip with a straight notch.

图22是缺口在圆锥柱体结构的耐高温长寿命导电嘴上的结构图。FIG. 22 is a structural diagram of a notch on a high-temperature-resistant long-life conductive tip with a conical cylinder structure.

图23是没有缺口的耐高温长寿命导电嘴结构图。FIG. 23 is a structural diagram of a high-temperature-resistant and long-life conductive tip without a notch.

图24是有多个缺缝的耐高温长寿命导电嘴的结构图。FIG. 24 is a structural diagram of a high-temperature-resistant long-life contact tip having a plurality of gaps.

图25是导电块为圆锥形的耐高温长寿命导电嘴结构图。FIG. 25 is a structural view of a high-temperature-resistant and long-life conductive tip with a conical conductive block.

图26是加长耐高温长寿命导电嘴的结构图。FIG. 26 is a structural diagram of an extended high-temperature-resistant and long-life contact tip.

图27是外圆采用滚花工艺加工的耐高温长寿命导电嘴的结构图。FIG. 27 is a structural diagram of a high-temperature-resistant long-life contact tip processed by a knurling process on an outer circle.

图28是采用内螺纹连接的耐高温长寿命焊接导电嘴的结构图。FIG. 28 is a structural diagram of a high-temperature-resistant and long-life welding contact using an internal thread connection.

图29是尾部连接处有锥度并加长的耐高温长寿命焊接导电嘴的结构图。FIG. 29 is a structural diagram of a high-temperature-resistant and long-life welding contact tip with a taper at the tail connection.

图30是采用T型接头连接的耐高温长寿命焊接导电嘴的结构图。FIG. 30 is a structural diagram of a high-temperature-resistant long-life welding contact tip connected by a T-junction.

图31为铜的软化温度曲线图。FIG. 31 is a softening temperature curve of copper.

图32为大电流焊接导电块遇高温软化被焊丝撑开实样图。FIG. 32 is a sample diagram of a high-current welding conductive block being stretched by a welding wire when it is softened by high temperature.

图33为加保护罩的导电块大电流焊接高温软化被焊丝撑开实样图。FIG. 33 is a real sample drawing of a conductive block with a protective cover under high-current welding and softened by a welding wire at high temperature.

图中编号含义：1-缺缝，2-焊丝，3-连接螺纹，4-拧紧平面，5-导电块，6-弹性导电块，7-缺口，8-加厚导电块，9-定位弧面，10-大过孔，11-导电头，12-导电孔，13-坯料，14-加工大孔，15-加工主体，16-加工外形，17-加工缺缝、压导电块，18-加工连接螺纹、拧紧平面，19-加工圆柱体，20-加工缺口，21-加工缺缝，22-压导电块，23-凹环，24-焊丝过孔，25-加工高缺缝，26-加工导电块，27-导电组合块，28-盲孔，29-后部，30-长方体坯料，31-连接柱，32-多边形耐高温长寿命导电嘴，33-导电组合凹块，34-凹孔，35-凸台，36-导电组合凸块，37-加工主轮廓，38-加工头部，39-加工连接螺纹、拧紧平面、焊丝过孔。Meaning of the numbers in the figure: 1-missing seam, 2-welding wire, 3-connection thread, 4-tightening plane, 5-conductive block, 6-elastic conductive block, 7-notch, 8-thickened conductive block, 9-locating arc Surface, 10-large via, 11-conductive head, 12-conductive hole, 13-blank, 14-machined large hole, 15-machined body, 16-machined shape, 17-machined seam, pressed conductive block, 18- Machining connection threads, tightening planes, 19-machining cylinders, 20-machining notches, 21-machining gaps, 22-piezoelectric blocks, 23-concave rings, 24-welding wire vias, 25-machining high gaps, 26- Processing conductive block, 27-conductive combination block, 28-blind hole, 29-rear, 30-cuboid blank, 31-connecting post, 32-polygon high temperature resistant long-life conductive tip, 33-conducting combination concave block, 34-concave Holes, 35-Bosses, 36-Conductive combined bumps, 37-Machined main contours, 38-Machined heads, 39-Machined connecting threads, tightening planes, welding wire vias.

具体实施方式detailed description

实施例1：如图1所示，在普通导电嘴的前段开一条长约2-30毫米长，高约0.01-6毫米的平直形的缺缝1。缺缝1需通过导电嘴内孔的圆心，将导电嘴前端分成上下两个导电块5。最好的方案是，比如使用1.2毫米焊丝的导电嘴，缺缝1的高度取焊丝直径的值为1.2毫米，此时如果焊丝在导电块5中间有晃动，则适当将导电块5往内压，使焊丝与导电块5充分接触。此方案最大限度提高了导电块5的厚度和宽度，导电块变得更粗更大，导电块的强度更高，在高温环境中拥有足够的稳定性，导电块5也不会张开使导电性变差，同时也最大限度提高了导电嘴的使用寿命。为了避免加工误差导致缺缝1与导电嘴内孔错位，降低加工难度，选用厚度比导电嘴内孔直径略大的切割片。这样切割出的缺缝1宽度就比内孔大，即使加工时出现偏差，导电嘴内孔和缺缝1也不会错位。最后将上下两个导电块5适当往内压，使两个导电块5的距离与焊丝直径相当，耐高温长寿命导电嘴便加工完成。使用时，将焊丝2***导电嘴内孔并从前端的导电块5穿出，此时缺缝1的尺寸与焊丝2直径相等。当焊接中焊丝2将导电块5磨损后，及时将导电块5往内收拢，使导电块5与焊丝2一直保持很充分的接触。然后再继续使用，直到缺缝1的尺寸为零，直到上下两个电块5完全贴拢为止。Embodiment 1: As shown in FIG. 1, a straight gap 1 with a length of about 2-30 mm in length and a height of about 0.01-6 mm is opened in the front section of a common conductive nozzle. The gap 1 needs to be divided into two upper and lower conductive blocks 5 by the center of the inner hole of the conductive nozzle. The best solution is, for example, using a conductive tip with a 1.2 mm wire, and the height of the gap 1 takes the diameter of the wire as 1.2 mm. At this time, if the welding wire shakes in the middle of the conductive block 5, press the conductive block 5 inward. So that the welding wire is in full contact with the conductive block 5. This solution maximizes the thickness and width of the conductive block 5, the conductive block becomes thicker and larger, the strength of the conductive block is higher, and it has sufficient stability in a high temperature environment, and the conductive block 5 will not spread to make it conductive. Poor performance, but also maximize the life of the contact tip. In order to avoid the processing error leading to the misalignment of the gap 1 and the inner hole of the contact tip, and to reduce the processing difficulty, a cutting piece with a thickness slightly larger than the diameter of the inner hole of the contact tip is selected. The width of the gap 1 cut out in this way is larger than that of the inner hole. Even if there is a deviation during processing, the inner hole of the contact tip and the gap 1 will not be misaligned. Finally, the upper and lower conductive blocks 5 are appropriately pressed inward, so that the distance between the two conductive blocks 5 is equal to the diameter of the welding wire, and the high-temperature-resistant and long-life conductive tip is processed. When in use, the welding wire 2 is inserted into the inner hole of the contact tip and penetrated from the conductive block 5 at the front end. At this time, the size of the gap 1 is equal to the diameter of the welding wire 2. After the conductive block 5 is worn by the welding wire 2 during welding, the conductive block 5 is retracted in time to keep the conductive block 5 and the welding wire 2 in full contact at all times. Then continue to use until the size of the gap 1 is zero, until the upper and lower electric blocks 5 are completely closed.

实施例2：如图2所示。为了便于加工，先把导电嘴的前端加工成圆柱体，圆柱体长约2-30毫米，圆柱体的直径取焊丝2直径的2.5-5倍。在该圆柱体的后端开两个相互对称的缺口7，使两缺口7之间剩下部分的材料厚度为焊丝2直径的2-4倍。用切割片加工缺缝1，缺缝1穿过导电嘴内孔的圆心，与缺口7平行，缺缝1的跟部在缺口7的中部或者是中后部，目的是将弹性导电块6压拢时，缺缝1跟部对弹性导电块6提供支撑，便于加工。缺缝1的长度与圆柱体的长度相当，高度为焊丝2直径的1-3倍，并确保缺口7处弹性导电块6的厚度为0.3-2毫米。最后就是将两对称的弹性导电块6压拢，如果压拢仍较困难时，可将缺缝1的高度适当增加。将缺口7部位的材料厚度控制在0.3-2毫米，目的是使弹导电块6有适当的弹力。控制缺口7的深浅可以控制缺口7处材料的厚度，以此调节弹性导电块6弹力的大小。将导电嘴前端加工成直径较小的圆柱体，可以使缺口7处的材料变窄，这样就能增加其厚度，降低弹性导电块6的加工难度。将圆柱体的后端改成凹环23的结构，凹环23与圆柱体同轴，直径比圆柱体小。如采用切削或者旋压的方法加工，凹环7可在加工圆柱体时同步完成，省去了加工缺口7的时间，效率更高。Embodiment 2: As shown in FIG. 2. In order to facilitate processing, the front end of the contact tip is processed into a cylinder, the cylinder is about 2-30 mm in length, and the diameter of the cylinder is 2.5-5 times the diameter of the welding wire 2. Two symmetrical notches 7 are formed at the rear end of the cylinder, so that the material thickness of the remaining part between the two notches 7 is 2-4 times the diameter of the welding wire 2. Use the cutting piece to process the gap 1 through the center of the inner hole of the contact tip, parallel to the gap 7, and the heel of the gap 1 is in the middle or rear of the gap 7, in order to press the elastic conductive block 6 When closed, the heel of the gap 1 provides support to the elastic conductive block 6 for easy processing. The length of the notch 1 is equivalent to the length of the cylinder, the height is 1-3 times the diameter of the welding wire 2, and the thickness of the elastic conductive block 6 at the notch 7 is 0.3-2 mm. Finally, the two symmetrical elastic conductive blocks 6 are pressed together. If the pressing is still difficult, the height of the gap 1 can be appropriately increased. The material thickness of the notch 7 is controlled to 0.3-2 mm, so that the elastic conductive block 6 has a proper elastic force. Controlling the depth of the notch 7 can control the thickness of the material at the notch 7 to adjust the elasticity of the elastic conductive block 6. Processing the front end of the contact tip into a cylinder with a smaller diameter can narrow the material at the notch 7, which can increase its thickness and reduce the processing difficulty of the elastic conductive block 6. The rear end of the cylinder is changed to a structure of a concave ring 23, which is coaxial with the cylinder and has a smaller diameter than the cylinder. If the cutting or spinning method is used for processing, the concave ring 7 can be completed synchronously when processing the cylinder, which saves time for processing the gap 7 and has higher efficiency.

普通导电块5也可以加工缺口7或者凹环23。The ordinary conductive block 5 can also be processed with the notch 7 or the concave ring 23.

实施例3：如图3所示，为了进一步提高导电嘴的使用寿命，必须提供更多的材料供导电嘴磨损。将导电嘴前端的圆柱体直径提高到焊丝2直径的3.2-5倍，圆柱体长约4-15毫米。将圆柱体两侧的材料切掉，先由前往后直切2-10毫米，然后再往导电嘴外沿斜切，两侧被切除的部分为对称结构。中间剩下那部分材料形成加厚导电块8，加厚导电块8的宽度略小于焊丝2直径。加厚导电块8内侧有定位弧面9，定位弧面9对焊丝2进行约束，保证出丝的准确性。上 下两个加厚导电块8的头部略向内倾。加厚导电块8厚度比焊丝2窄，无论怎么磨损，上下两个导电块始终不会相互抵触。以使用直接为3毫米焊丝2的导电嘴为例，如果前面的导电嘴直径取焊丝2直径的4倍为12毫米，减去导电嘴内孔直径3.2毫米再除以2，那么单侧导电块的厚度就是4.4毫米。4.4毫米的厚度可以全部提供给导电嘴磨损，可供磨损的量比焊丝2的直径还要多出1.4毫米，使用寿命自然比导电内芯高。并且可以参照实施例1和实施例2中耐高温长寿命导电嘴的方案，结合生产实际，加工普通加厚导电块和弹性加厚导电块。加工过程流程见图11。Embodiment 3: As shown in FIG. 3, in order to further increase the service life of the contact tip, more material must be provided for the contact tip to wear. Increase the diameter of the cylinder at the front end of the contact tip to 3.2-5 times the diameter of the welding wire 2 and the cylinder length is about 4-15 mm. Cut off the material on both sides of the cylinder, cut straight 2-10 millimeters from front to back, and then cut obliquely outside the conductive tip. The cut off parts on both sides are symmetrical structures. The remaining part of the material in the middle forms the thick conductive block 8, and the width of the thick conductive block 8 is slightly smaller than the diameter of the welding wire 2. There is a positioning arc surface 9 on the inner side of the thick conductive block 8. The positioning arc surface 9 restrains the welding wire 2 to ensure the accuracy of wire drawing. The heads of the upper and lower thickened conductive blocks 8 tilt slightly inward. The thickness of the thick conductive block 8 is narrower than that of the welding wire 2. No matter how worn, the upper and lower conductive blocks will never conflict with each other. Take the contact tip that is directly 3 mm welding wire 2 as an example. If the diameter of the previous contact tip is 4 times the diameter of welding wire 2 to 12 mm, subtract the 3.2 mm diameter of the inner diameter of the contact tip and divide by 2, then the single-sided conductive block The thickness is 4.4 mm. The thickness of 4.4 millimeters can be all provided to the contact tip for abrasion. The amount available for abrasion is 1.4 millimeters more than the diameter of the welding wire 2. The service life is naturally higher than that of the conductive core. In addition, referring to the solutions of the high-temperature-resistant and long-life conductive nozzles in Embodiments 1 and 2, and in combination with the actual production, ordinary thick conductive blocks and elastic thick conductive blocks can be processed. The process flow is shown in Figure 11.

如果焊丝过孔24的直径为1.2毫米，缺缝1的高度为1毫米，由此加工出的导电块5和弹性导电块6上也成做出定位弧面9。定位弧面9可以是弧形，也可以是平直形。If the diameter of the welding wire via 24 is 1.2 millimeters and the height of the gap 1 is 1 millimeter, the conductive block 5 and the elastic conductive block 6 thus processed also form a positioning arc surface 9. The positioning arc surface 9 may be curved or straight.

加厚导电块8的加工可以切割的方式获得，用切割片切掉导电嘴圆柱体两侧的材料，先对着圆柱体内孔(焊丝过孔)边缘由前往后直切2-10毫米，然后再往导电嘴外面斜切，切除的部分两侧保持一致。加工加厚导电块8还可以用铣削的方式加工，在圆柱体的头部铣出左右两个2-10毫米的直面，然后再铣斜面。The process of thickening the conductive block 8 can be obtained by cutting. Use a cutting sheet to cut off the material on both sides of the cylinder of the conductive tip. First, cut 2-10 mm straight from the edge of the hole in the cylinder (welding wire via), and then Cut diagonally to the outside of the contact tip, and keep the sides of the cut off the same. The thickened conductive block 8 can also be processed by milling. Mill the left and right two 2-10 mm straight faces on the head of the cylinder, and then mill the inclined faces.

实施例4：如图4所示，耐高温长寿命导电嘴的前段是细长的薄壁圆柱体结构，圆柱体的外径为焊丝2直径的1.2-3倍，长度5-20毫米，壁厚0.1-2毫米。耐高温长寿命导电嘴中心为大过孔10，大过孔10的孔径为焊丝2直径的1.05-2倍，大过孔10为焊丝2的通道。导电嘴的头部是导电头11，导电头长0.1-8毫米，导电头11的中心是导电孔13，导电孔12与大过孔10处于同一轴线上。导电孔12的孔径是焊丝2直径的1.01-1.2倍，以利于为焊丝2导电。当焊丝2将导电孔12的孔磨损变大后，对其进行二次加工是将导电孔12修复，则导电嘴可以继续使用，如此循环——本方案特意将导电嘴前段的外径缩小，将该部位的壁厚变薄，目的就是当导电孔12被磨损后，更有利于二次加工对导电孔12进行修复。圆柱体整个截面的所有材料都可以供焊丝2磨损，不仅如此，只要圆柱体的长度足够长，导电嘴就可以一直使用下去。考虑到如果圆柱体磨损太多会使焊丝2伸出长度过长，当圆柱体磨损3-10毫米后更换新的导电嘴。焊丝2经大过孔10再从导电孔12处伸出，导电孔12对焊丝2形成约束并为其导电。由于大过孔10直径大，导电孔12直径小，焊丝2只对导电孔12进行磨损，焊丝2不会与导电孔12后部一定长度范围内的大过孔10的孔壁接触，因此该部位的圆柱体也不会提前磨损，导电嘴可以正常使用。整个圆柱体截面的所有材料都可以供焊丝2磨损，且长度达3-10毫米，因此使用寿命得到进一步延长。大过孔10的孔径比传统导电嘴的焊丝过孔24大，使加工更加简单和容易。采用导电块的技术方案，虽然提高了导电嘴的使用寿命和导电性能，但导电块之间有缺缝1，导电嘴离熔池很近，焊接时飞溅难免会溅到缺缝1里去。本方案没有缺缝1，为全封闭结构，也就没有焊接飞溅溅到缺缝1的情况发生。导电嘴焊丝过孔24容易堵塞的问题也由于焊丝过孔24增大得到很好解决。导电嘴的主要材料是铜，质地较软，提供磨损的圆柱为薄壁结构，对其进行二次加工修复导电孔12也很容易。在使用前，导电嘴前段的薄壁结构中大过孔10与导电孔12的孔径可以保持一致，当导电嘴被焊丝磨损后，对导电嘴前端进行修复，使该处孔径缩小，缩小处即为导电孔12。Embodiment 4: As shown in FIG. 4, the front section of the high-temperature-resistant and long-life contact tip is an elongated thin-walled cylindrical structure. The outer diameter of the cylinder is 1.2-3 times the diameter of the welding wire 2, and the length is 5-20 mm. 0.1-2 mm thick. The center of the high-temperature-resistant and long-life conductive tip is a large via hole 10, the diameter of the large via hole 10 is 1.05-2 times the diameter of the welding wire 2, and the large via hole 10 is a channel of the welding wire 2. The head of the conductive nozzle is a conductive head 11 with a length of 0.1-8 mm. The center of the conductive head 11 is a conductive hole 13, and the conductive hole 12 is on the same axis as the large via hole 10. The diameter of the conductive hole 12 is 1.01 to 1.2 times the diameter of the welding wire 2 to facilitate conducting electricity for the welding wire 2. When the welding wire 2 wears out the conductive hole 12 and the secondary processing is performed to repair the conductive hole 12, the conductive nozzle can continue to be used, so the cycle-this solution intentionally reduces the outer diameter of the front section of the conductive nozzle, The wall thickness of this part is reduced, the purpose is to facilitate the secondary processing to repair the conductive hole 12 after the conductive hole 12 is worn. All materials of the entire cross section of the cylinder can be used for the welding wire 2 to wear. Not only that, as long as the length of the cylinder is long enough, the contact tip can be used continuously. Considering that if the cylinder wears too much, the welding wire 2 will extend too long, and when the cylinder wears 3-10 mm, replace it with a new contact tip. The welding wire 2 protrudes from the conductive hole 12 through the large via hole 10, and the conductive hole 12 forms a constraint on the welding wire 2 and conducts it. Because the large via hole 10 has a large diameter and the conductive hole 12 has a small diameter, the welding wire 2 only wears the conductive hole 12, and the welding wire 2 does not contact the hole wall of the large via hole 10 within a certain length of the rear portion of the conductive hole 12, so the The cylindrical part of the part will not be worn out in advance, and the contact tip can be used normally. All materials of the entire cylinder section can be worn by the welding wire 2 and have a length of 3-10 mm, so the service life is further extended. The hole diameter of the large via hole 10 is larger than that of the welding wire via hole 24 of the conventional contact tip, which makes processing simpler and easier. Adopting the technical scheme of conductive blocks, although the service life and conductivity of the contact tips are improved, there are gaps 1 between the conductive blocks. The contact tips are close to the molten pool, and splashes will inevitably splash into the gaps 1 during welding. In this solution, there is no gap 1 and the structure is completely closed, so that no welding spatter splashed to the gap 1 occurs. The problem that the via hole 24 of the contact tip is easy to be blocked is also well solved because the via hole 24 is enlarged. The main material of the contact tip is copper, which has a softer texture. The cylinder that provides wear is a thin-walled structure. It is also easy to repair the conductive hole 12 by secondary processing. Before use, the hole diameter of the large via hole 10 and the conductive hole 12 in the thin-walled structure of the front part of the contact tip can be consistent. When the contact tip is worn by the welding wire, the front end of the contact tip is repaired to reduce the aperture there. Is a conductive hole 12.

实施例5：取一段铜或者铜合金且为圆柱体的坯料13，坯料13的直径要求比导电嘴的最大截面大。以坯料圆心为中心钻一个大孔，孔径为圆柱体外径的三分之一至二分之一。由于圆柱体的直径较大，孔的直径也相应变大，不管是钻孔或者是打孔，所使用的钻头或者冲头的直径也随之变大。这样就可以使用大直径的钻头或者冲头进行加工，这样的好处是加工孔的工具强度高，不容易损坏和折断；加工孔时可以施加更大的力，提高钻孔速度；加工工具也可以更长，加工的孔也随之变长。孔加工好后，就采用滚压的方式将圆柱体的直径一步步缩小，直到适合制造导电嘴的尺寸。滚压缩小了圆柱体的外径，同时也缩小了大孔，为了保证中心孔的尺寸，可以放入与焊丝2直径相当的金属芯棒，金属芯棒的强度要比坯料的强度更高，这样圆柱体中心孔的直径、圆度等品质要求也能得到保证。除了滚压的方式外，还可以采用旋压，拉拔等方式对圆柱体进行加工，加工思路与滚压的加工方法基本一致。如果在常温下 加工比较困难，或者为了提高加工效率，可将坯料加热后再进行加工。将缩小后的圆柱体分切成单个导电嘴的长度，使用切削、旋压、锻压、挤压的方式加工导电嘴的外形。用切割片加工导电嘴前端的缺缝1，缺缝1的高度与焊丝直径相当，使之成为上下对称的导电块5，调节两个导电块5之间的间隙,使之与焊丝直径一致，以确保与焊丝的充分接触。最后切削连接螺纹3和铣拧紧平面4，加工过程流程见图5。如果加工弹性导电块6，则先将导电嘴的头部加工成小圆柱体，用铣、钻或者割的方式加工缺口7，再用铣或者割的方式加工缺缝1，最后将缺口7部位的材料同时往里压，使该部分材料产生永久变形，使上下两个弹性导电块6贴拢。加工过程流程见图6。为了降低弹性导电块6的加工难度，可将该部位加热后再加。Embodiment 5: Take a piece of copper or copper alloy and a cylinder-shaped blank 13. The diameter of the blank 13 is required to be larger than the maximum cross-section of the contact tip. A large hole is drilled around the center of the blank, and the hole diameter is one-third to one-half of the outer diameter of the cylinder. Due to the larger diameter of the cylinder, the diameter of the hole also becomes larger. Whether it is drilling or drilling, the diameter of the drill or punch used also increases. In this way, a large-diameter drill or punch can be used for processing. This has the advantage that the tool for processing the hole is high in strength and is not easy to be damaged and broken. The hole can be applied with greater force to increase the drilling speed. The processing tool can also be used. The longer the hole is, the longer it is. After the hole is processed, the diameter of the cylinder is gradually reduced by rolling, until it is suitable for the size of the conductive tip. The rolling compression reduces the outer diameter of the cylinder and also reduces the large hole. In order to ensure the size of the central hole, a metal core rod with a diameter equal to that of the welding wire 2 can be inserted. The strength of the metal core rod is higher than that of the blank. In this way, the quality requirements such as the diameter and roundness of the central hole of the cylinder can be guaranteed. In addition to the rolling method, the cylinder can also be processed by spinning, drawing, etc. The processing idea is basically the same as the rolling method. If it is difficult to process at room temperature, or in order to improve the processing efficiency, the billet can be heated before processing. The reduced cylinder is cut into the length of a single contact tip, and the shape of the contact tip is processed by cutting, spinning, forging, and extrusion. Use the cutting piece to process the gap 1 at the front end of the contact tip. The height of the gap 1 is equivalent to the diameter of the welding wire, so that it is a conductive block 5 that is symmetrical up and down. Adjust the gap between the two conductive blocks 5 to be consistent with the diameter of the welding wire. To ensure full contact with the welding wire. Finally, the connection thread 3 is cut and the tightening plane 4 is milled. The process flow is shown in Figure 5. If the elastic conductive block 6 is processed, the head of the contact tip is processed into a small cylinder, and the notch 7 is processed by milling, drilling or cutting, and then the gap 1 is processed by the milling or cutting, and finally the notch 7 is processed. The material at the same time is pressed in at the same time, so that the part of the material is permanently deformed, and the upper and lower elastic conductive blocks 6 are brought close together. The process flow is shown in Figure 6. In order to reduce the processing difficulty of the elastic conductive block 6, the part may be heated and then added.

弹性导电块6可以通过将后端的材料压薄的方式获得。弹性导电块6也可以没有缺口7。由于导电嘴的前端需要加工缺缝，故此部位可以不加工焊丝过孔24。The elastic conductive block 6 can be obtained by thinning the material at the rear end. The elastic conductive block 6 may not have the notch 7. Since the front end of the contact tip needs to be processed with a gap, the welding wire via hole 24 may not be processed at this part.

为了进一步缩减工序，提高工作效率，降低加工成本。在加工小圆柱体的时候在小圆柱体后端同步加工一个凹环23，凹环23的结构见图7。凹环加工完成后，再切割缺缝1，加工缺缝1时，缺缝1的跟部尽量在凹环23的中部或者中后部，见图8，以便于后面将两个弹性导电块6压拢的加工。加工完成的耐高温长寿命导电嘴成品见图9。弹性导电块6的后端有凹环，代替了缺口7的功能，可与小圆柱体同步加工，省时省力。In order to further reduce procedures, improve work efficiency and reduce processing costs. When processing a small cylinder, a concave ring 23 is simultaneously processed at the rear end of the small cylinder. The structure of the concave ring 23 is shown in FIG. 7. After the processing of the concave ring is completed, the gap 1 is cut. When the gap 1 is processed, the heel of the gap 1 is as far as possible in the middle or the middle of the recessed ring 23, as shown in FIG. Crushing processing. The finished high-temperature-resistant and long-life contact tip is shown in Figure 9. The rear end of the elastic conductive block 6 has a concave ring, which replaces the function of the notch 7 and can be processed synchronously with a small cylinder, saving time and effort.

上述方案使用切割片的方式加工缺缝1，虽然方法简单，但由于切割会造成大量的粉尘，对操作者的身体健康和环境造成不好的影响。因此可以把缺缝1由切割片加工改为锻压加工。取一段直径比导电嘴的横截面大的坯料，坯料的长度够加工一个耐高温长寿命导电嘴的量。用锻压模具在坯料的一端且沿坯料的轴向压一个高缺缝，高缺缝穿过坯料的圆心，并贯通。高缺缝的长度比缺缝1的长度短，高度比缺缝1的高度大。在高缺缝的中心钻一个大孔，此大孔与坯料的圆心重合。采用滚压、旋压、拉拔或者挤压的方式方式将坯料外径和大孔缩小成耐高温长寿命导电嘴外径和焊丝过孔24的尺寸，在此过程中，加工出的缺缝的长度也会随之变长，高度也会随之变小。为了确保加工后焊丝过孔24和缺缝1的尺寸，加工前可以在大孔内放入与耐高温长寿命导电嘴焊丝过孔直径一样的芯棒以及和缺缝1尺寸一样的芯块。然后切削或者锻压外形，同时将导电块5往内微压。最后切削连接螺纹3和铣拧紧平面4。加工过程流程见图10。弹性导电块6的加工也可以参照此方法加工。The above solution uses a cutting blade to process the missing seam 1. Although the method is simple, the cutting will cause a large amount of dust, which will adversely affect the operator's health and the environment. Therefore, the gap 1 can be changed from the cutting sheet processing to the forging processing. Take a piece of blank with a diameter larger than the cross section of the contact tip. The length of the blank is sufficient to process a high temperature resistant long-life contact tip. A forging die is used to press a high gap at one end of the blank along the axial direction of the blank, and the high gap passes through the center of the blank and penetrates. The length of the high gap is shorter than the length of the gap 1 and the height is greater than the height of the gap 1. Drill a large hole in the center of the high gap. This large hole coincides with the center of the blank. Rolling, spinning, drawing or extrusion are used to reduce the outer diameter of the billet and the large hole to the size of the high-temperature-resistant long-life outer diameter of the contact tip and the diameter of the welding wire via 24. In the process, the processed gaps The length will also increase and the height will decrease. In order to ensure the dimensions of the welding wire via 24 and the gap 1 after processing, a core rod with the same diameter as the high temperature resistant long-life conductive tip welding wire via hole and a core block of the same size as the gap 1 can be placed in the large hole before processing. Then cut or forge the shape, while pressing the conductive block 5 inward. Finally, the connecting thread 3 is cut and the tightening plane 4 is milled. The process flow is shown in Figure 10. The processing of the elastic conductive block 6 can also be performed with reference to this method.

如果将缺缝1做得高一些，也可以直接用锻压的方式加工，不必先加工高缺缝再加工缺缝1，以节省加工成本和缩短加工时间。If the gap 1 is made higher, it can also be processed directly by forging. It is not necessary to process the gap 1 first and then process the gap 1 to save processing costs and shorten processing time.

实施例6：制作模型，模型的前端是导电块5，中间是盲孔28，后端是后部29，模型的具体形状如图12所示。根据模型的结构加工锻压模具的凹模和凸模。计算模具内腔的体积，根据这个体积并结合产品的边界尺寸制备坯料长方体坯料30(如图13)。将长方体坯料30放入模具对其进行锻压成型，长方体坯料30经过锻压成型后成为导电组合快27，如果导电组合快27使用一道工序无法完成的，可以使用多道工序。制作连接柱31，连接柱31中间部分的外径比盲孔28外径稍大，两端的外径比盲孔28稍小，长度略大于盲孔28深度的两倍。制作成品模具，以多边形耐高温长寿命导电嘴32的结构为模型制作模具的上模和下模。将导电组合快27放入如下模内，将连接柱31***导电组合快27的盲孔28内，再取一个导电组合快27，将导电组合快27的盲孔28对准连接柱31，将上模压下，使两个导电组合快27在连接柱31与盲孔28的过盈配合作用下连接在一起形成多边形耐高温长寿命导电嘴32(见图14)。最后钻多边形耐高温长寿命耐用导电嘴32(见图15)的焊丝过孔24以及加工后部29的连接螺纹3等其他部位。Embodiment 6: A model is made. The front end of the model is a conductive block 5, the middle is a blind hole 28, and the rear end is a rear portion 29. The specific shape of the model is shown in FIG. The concave and convex dies of the forging die are processed according to the structure of the model. Calculate the volume of the mold cavity, according to this volume and the boundary size of the product to prepare the blank cuboid blank 30 (see Figure 13). The cuboid blank 30 is put into a mold to be forged and formed. After the cuboid blank 30 is forged and formed, it becomes a conductive combination 27. If the conductive combination 27 cannot be completed in one process, multiple processes can be used. The connecting post 31 is manufactured. The outer diameter of the middle part of the connecting post 31 is slightly larger than the outer diameter of the blind hole 28, the outer diameters of the two ends are slightly smaller than the blind hole 28, and the length is slightly greater than twice the depth of the blind hole 28. The finished mold is manufactured, and the upper and lower molds of the mold are manufactured by using the structure of the polygonal high temperature resistant long-life conductive tip 32 as a model. Put the conductive combination 27 into the following mold, insert the connection post 31 into the blind hole 28 of the conductive combination 27, and take another conductive combination 27, align the blind hole 28 of the conductive combination 27 with the connection post 31, Under the upper die pressing, the two conductive combination blocks 27 are connected together under the interference fit of the connecting post 31 and the blind hole 28 to form a polygonal high temperature resistant long-life conductive tip 32 (see FIG. 14). Finally, the welding wire via hole 24 of the polygonal high-temperature-resistant long-life and durable conductive tip 32 (see FIG. 15) and other parts such as the connection thread 3 of the rear portion 29 are drilled.

为了使加工焊丝过孔24的加工更加容易，可以先钻大一些的孔，再通过旋压、滚压、拉拔或者滚压的方式将孔缩小。In order to make the processing of the welding wire via hole 24 easier, a larger hole can be drilled first, and then the hole can be reduced by spinning, rolling, drawing or rolling.

为了使制作加工最简化，可以取消连接柱31，直接将两块半成品采用凹凸的方式过盈连接。根据图16所示的导电组合凹块33的结构制作锻压模具的凸模和凹模，然后锻压导电组合凹块33，如果一道工序无法完成可以分成多道工序，导电组合凹块33上有凹孔34和凸台35。根据图17所示的导电组合凸块36的结构制作锻压模具的凸模和凹模，如果一道工序无法完成 可以分成多道工序，导电组合凸块36上有凹孔34和凸台35，然后锻压导电组合凸块36。制作成品模具，根据成品的结构制作上模和下模。将导电组合凹块33放入下模，然后将导电组合凸块36放在导电组合凹块33上，导电组合凹块33的凹孔34对准导电组合凸块36的凸台35，导电组合凹块33的凸台35对准导电组合凸块36的凹孔34，上模下压，将导电组合凹块33和导电组合凸块36压拢，形成过盈连接。为了形成过盈连接的效果，凹孔34的尺寸要比凸台35的尺寸略小，反过来凸台35的尺寸要比凹孔34的尺寸略大。为了便于压合，凹孔34上端的尺寸应该比下端略大，以方便凸台35的进入。反过来凸台35上端的尺寸应该比下端略小，以方便凹孔34的进入。使用锻压和过盈连接形成的形式制造导电嘴，加工过程尽量减少钻、铣、割等方式加工，使加工过程只产生很少的废料，节约了材料成本。将导电嘴制作成多边形，省去了加工拧紧平面4的工作。导电块自然形成，不用进行额外的缺缝1加工，提高了生产效率。In order to simplify the manufacturing process, the connecting post 31 can be eliminated, and the two semi-finished products can be directly connected by interference in an uneven manner. According to the structure of the conductive combination concave block 33 shown in FIG. 16, a convex die and a concave die of a forging die are produced, and then the conductive combination concave block 33 is forged. If one process cannot be completed, it can be divided into multiple processes. The conductive combination concave block 33 has a recess.孔 34 和 Projection 35. According to the structure of the conductive composite bump 36 shown in FIG. 17, the male and female dies of the forging die are produced. If one process cannot be completed, it can be divided into multiple processes. The conductive composite bump 36 has a recessed hole 34 and a boss 35, and then Forging conductive combination bump 36. The finished mold is made, and the upper and lower molds are made according to the structure of the finished product. Put the conductive combination recess 33 into the lower mold, and then place the conductive combination bump 36 on the conductive combination recess 33. The recessed hole 34 of the conductive combination recess 33 is aligned with the projection 35 of the conductive combination bump 36. The conductive combination The projection 35 of the concave block 33 is aligned with the concave hole 34 of the conductive combination bump 36, and the upper mold is pressed down to press the conductive combination recess 33 and the conductive combination bump 36 together to form an interference connection. In order to form the interference connection effect, the size of the recessed hole 34 is slightly smaller than the size of the boss 35, and conversely, the size of the boss 35 is slightly larger than the size of the recessed hole 34. In order to facilitate the pressing, the size of the upper end of the recessed hole 34 should be slightly larger than the lower end to facilitate the entry of the boss 35. Conversely, the size of the upper end of the boss 35 should be slightly smaller than the lower end to facilitate the entry of the recessed hole 34. The contact tip is manufactured in the form of forging and interference connection, and the machining process is minimized by drilling, milling, cutting, etc., so that only a small amount of waste is generated during the processing, which saves material costs. The contact tip is made into a polygon, which saves the work of processing and tightening the plane 4. The conductive block is formed naturally, and no additional gap 1 processing is required, which improves production efficiency.

凹孔34和凸台35可以贯穿导电组合凹块33的横截面，凹孔34和凸台35也可贯穿导电组合凸块36的横截面。如此一来，导电组合凹块33和导电组合凸块36就可以从侧向进行过盈连接(与图14垂直的方向)。The recessed hole 34 and the projection 35 may penetrate the cross section of the conductive combination recess 33, and the recessed hole 34 and the projection 35 may also penetrate the cross section of the conductive combination bump 36. In this way, the conductive combination recess 33 and the conductive combination bump 36 can be interference-connected from the side (the direction perpendicular to FIG. 14).

一个导电组合凹块33上面可以只有一个凹孔34或者一个凸台35，导电组合凸块36上面也可以只有一个凹孔34或者一个凸台35。There may be only one recessed hole 34 or a protrusion 35 on a conductive combination recess 33, and there may be only one recessed hole 34 or a protrusion 35 on the conductive combination bump 36.

在加工导电组合快27、导电组合凹块33、导电组合凸块36时，可以将缺口7、凹环23一并加工。When processing the conductive combination 27, the conductive combination recess 33, and the conductive combination bump 36, the notch 7 and the concave ring 23 can be processed together.

在对导电组合块进行过盈配合时，可以在中间放入与焊丝直径相当的芯棒，压拢后再抽出芯棒，空心部分便成为焊丝过孔24。为了便于加工，盲孔28、凹孔34、凸台35应该避开焊丝过孔24的加工位置。或者在对导电组合块加工时，在焊丝过孔24的位置预先加工好凹槽。When an interference fit is performed on the conductive combination block, a core rod with a diameter corresponding to the welding wire can be placed in the middle, and the core rod can be pulled out after being compressed, and the hollow portion becomes the welding wire via hole 24. In order to facilitate processing, the blind hole 28, the recessed hole 34, and the boss 35 should avoid the processing position of the welding wire via hole 24. Or when processing the conductive combination block, a groove is pre-processed at the position of the welding wire via hole 24.

实施例7：如图18所示，将坯料13采用切削、旋压或者滚压的方式加工好导电嘴的主轮廓，重点是加工导电嘴的后部29和前端的圆柱体，采用滚压的方式加工时，把导电嘴的后部29当成一个整体来加工，或者把前端的圆柱体当成一个整体来加工，以此类推。主轮廓加工好后，再使用铣的方式加工导电嘴前端的圆柱体，圆柱体的头需部多铣除一些材料，加工好一侧后，再加工另一侧，两侧对称。加工后的圆柱体前端窄，后端宽，且圆柱体前端的截面形状为跑道形。以圆柱体的加工面垂直的方向切割缺缝1，缺缝1的长度为10-30毫米，高度为焊丝直径的2-5倍，然后将缺缝1的前段往内压，使两导电块5的距离与焊丝2直径一致，导电块5的前段应压成一定的角度，目的是提高导电块5与焊丝2的接触面积，提高导电性能。最后加工导电嘴的焊丝过孔24、连接螺纹3和拧紧平面4。Embodiment 7: As shown in FIG. 18, the main contour of the contact tip is processed by cutting, spinning or rolling the blank 13, and the focus is on processing the rear part 29 and the front cylinder of the contact tip. In the processing method, the rear part 29 of the contact tip is processed as a whole, or the front-end cylinder is processed as a whole, and so on. After the main contour is processed, the cylinder at the front end of the contact tip is milled by milling. The head of the cylinder needs to be milled to remove some material. After one side is processed, the other side is processed, and the sides are symmetrical. The front end of the processed cylinder is narrow and the rear end is wide, and the cross-sectional shape of the front end of the cylinder is track-shaped. Cut the gap 1 perpendicular to the processing surface of the cylinder. The length of the gap 1 is 10-30 mm and the height is 2-5 times the diameter of the welding wire. Then press the front section of the gap 1 inward to make two conductive blocks. The distance of 5 is consistent with the diameter of the welding wire 2. The front section of the conductive block 5 should be pressed to a certain angle, the purpose is to increase the contact area of the conductive block 5 and the welding wire 2 and improve the conductive performance. Finally, the welding wire via hole 24 of the contact tip, the connecting thread 3 and the tightening plane 4 are processed.

该实施例中导电块5较长，长的导电块5会有更好的弹性。但加工时需控制好导电块5的厚度和宽度，确保在高温环境中不有足够的稳定性。In this embodiment, the conductive block 5 is longer, and the longer conductive block 5 will have better elasticity. However, the thickness and width of the conductive block 5 need to be controlled during processing to ensure that it does not have sufficient stability in a high temperature environment.

该实施例中导电嘴前端的圆柱体加工好后直接进行缺缝1的加工，导电块5前后端的尺寸一致，这样的导电这块5也可以使用。如果想要导电嘴前端的尺寸小一点，也可以采取先将5压拢，再切削导电块前端材料的方式实现。In this embodiment, the cylinder at the front end of the contact tip is processed directly after the gap 1 is processed. The front and rear ends of the conductive block 5 have the same size. Such a conductive block 5 can also be used. If you want the size of the front end of the contact tip to be smaller, you can also press 5 and cut the front end of the conductive block.

焊丝过孔24可在当导电嘴还在坯料13的状态下加工好，焊丝过孔可以直接加工成与焊丝2直径相当的孔。The welding wire via hole 24 can be processed in a state where the contact tip is still in the blank 13, and the welding wire via hole can be directly processed into a hole with a diameter equivalent to that of the welding wire 2.

实施例8：通常情况下，焊丝2在使用中是将焊丝过孔24的孔径越磨越大，其中不排除焊丝2只向一个放向磨损的可能。为了避免焊丝2向缺缝1的方向磨损的情况，可以在导电嘴的后部29加入角度调节垫片。当发现焊丝2往缺缝1的方向磨损时，可取下角度调节垫片，然后再将导电嘴拧紧在焊枪上。由于取出角度调节垫片后，导电嘴拧入的深度更深一些，这样，缺缝1的角度就会发生变化，从而避免了焊丝2朝缺缝1的方形磨损。当发现焊丝2的导电性能变弱后，再加入另一种厚度的角度调节垫片，焊丝2的磨损方向再次改变，如此时导电嘴的导电性能良好，则可以继续使用。Embodiment 8: Under normal circumstances, in use, the diameter of the welding wire via hole 24 is larger and larger as the welding wire 2 is used, and it is not excluded that the welding wire 2 may only be worn in one direction. In order to prevent the welding wire 2 from abrasion in the direction of the gap 1, an angle adjusting gasket can be added to the rear portion 29 of the contact tip. When it is found that the welding wire 2 is worn in the direction of the gap 1, the angle adjustment gasket can be removed, and then the conductive nozzle is tightened on the welding gun. After the angle adjusting washer is taken out, the conductive nozzle is screwed into a deeper depth. In this way, the angle of the gap 1 changes, thereby avoiding the square wire abrasion towards the gap 1. When the conductivity of the welding wire 2 is found to be weak, another thickness adjustment pad is added, and the abrasion direction of the welding wire 2 is changed again. In this case, the conductivity of the contact tip is good, and it can be used continuously.

以焊丝2为中心，缺缝1就被分成左右两个缺缝口，两个缺缝口呈180度分布。为了达到调节缺缝1角度的目的，因此调节垫片的厚度不能是连接螺纹3的螺距的整数倍或者二分之一螺 距的整数倍。比如，连接螺纹3的螺距为1，那么调节垫片的厚度不能是1和0.5的整数倍。如果导电块的数量为3，就会有3个缺缝口，如果每相邻两个缺缝口之间的角度均为120度，那么角度调节垫片的厚度就不能是连接螺纹3的螺距的整数倍、三分之一螺距的整数倍以及三分二螺距的整数倍。以此类推。With the welding wire 2 as the center, the gap 1 is divided into two left and right gaps, and the two gaps are distributed at 180 degrees. In order to achieve the purpose of adjusting the angle of the gap 1, the thickness of the adjusting shim cannot be an integral multiple of the pitch of the connecting thread 3 or an integral multiple of a half pitch. For example, if the pitch of the connecting thread 3 is 1, then the thickness of the adjusting shim cannot be an integer multiple of 1 and 0.5. If the number of conductive blocks is 3, there will be 3 gaps. If the angle between each two adjacent gaps is 120 degrees, the thickness of the angle adjustment gasket cannot be the pitch of the connecting thread 3. Integer multiple of, one-third of the pitch, and one-third of the pitch. And so on.

本发明导电嘴中导电块的数量没有限制。The number of conductive blocks in the conductive nozzle of the present invention is not limited.

导电块5、弹性导电块6、加厚导电块8是耐高温长寿命导电嘴的不同技术方案，可以统称为导电块，同样导电组合块27、导电组合凹块33、导电组合凸块36可以统称为导电组合块。The conductive block 5, the elastic conductive block 6, and the thickened conductive block 8 are different technical solutions of a high-temperature-resistant and long-life conductive nozzle, and can be collectively referred to as a conductive block. Similarly, the conductive combination block 27, the conductive combination recess 33, and the conductive combination bump 36 may Collectively referred to as conductive combination blocks.

本发明中焊丝过孔24的制造方法并不局限于上述方法，也可以采用传统方法加工。加工外形16、加工圆柱体19等制作工序也可以采用切屑的方式加工。The manufacturing method of the welding wire via 24 in the present invention is not limited to the above method, and it can also be processed by a conventional method. The manufacturing steps such as machining the outer shape 16 and machining the cylindrical body 19 may also be processed by chipping.

以上所诉仅为本发明的较佳实施例，并不以上诉实施例为限制，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进，均应包含本发明的保护范围。The above claims are only the preferred embodiments of the present invention, and are not limited by the appeal embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall include the protection scope of the present invention. .

Claims (10)

1. 耐高温长寿命焊接导电嘴的制造方法，其特征是：导电块是在导电嘴前端加工缺缝(1)获得，缺缝(1)与焊丝过孔(24)连通，将导电嘴前段分割成多个导电块(5)；A method for manufacturing a high-temperature-resistant and long-life welding contact tip, which is characterized in that the conductive block is obtained by processing a gap (1) at the front end of the contact tip, and the gap (1) communicates with the welding wire via (24), and the front section of the contact tip is divided into Multiple conductive blocks (5);

   或者是，导电块是先在导电嘴的前端加工厚缺缝，再将厚缺缝加工成缺缝(1)获得；Alternatively, the conductive block is obtained by processing a thick gap at the front end of the contact tip, and then processing the thick gap into a gap (1);

   或者是，导电块是将导电组合块进行过盈连接获得；Or, the conductive block is obtained by performing an interference connection on the conductive combination block;

   或者是，导电块是通过切除左右两侧焊丝过孔(24)的部分孔壁获得；Alternatively, the conductive block is obtained by cutting part of the hole wall of the left and right welding wire vias (24);

   或者是，导电块是通过加工缺口(7)、凹环(23)，再加工缺缝(1)后获得；Or, the conductive block is obtained by processing the notch (7) and the concave ring (23), and then processing the notch (1);

   或者是，导电嘴的前段为薄壁结构，导电嘴的中心是大过孔(10)，导电嘴的头部有导电头(11)，导电头(11)的中心是导电孔(12)，导电孔(12)与大过孔(10)处于同一轴线上。Or, the front section of the contact tip is a thin-walled structure, the center of the contact tip is a large via hole (10), the head of the contact tip has a conductive head (11), and the center of the conductive head (11) is a conductive hole (12), The conductive hole (12) is on the same axis as the large via hole (10).
2. 根据权利要求1所述耐高温长寿命焊接导电嘴的制造方法，其特征是：导电嘴是将坯料(13)通过加工大孔(14)，加工主体(15)，加工外形(16)，加工缺缝、压导电块(17)，最后加工连接螺纹、拧紧平面(18)而成；The method for manufacturing a high-temperature-resistant and long-life welding contact tip according to claim 1, characterized in that the contact tip passes the blank (13) through the processing of the large hole (14), the processing main body (15), the processing shape (16), and the processing The gap is not formed, the conductive block (17) is pressed, and the connection thread is finally processed, and the plane (18) is tightened;

   或者是，导电嘴是将坯料(13)通加工大孔(14)，加工主体(15)，加工圆柱体(19)，加工缺口(20)，加工缺缝(21)，压导电块(22)，最后加工连接螺纹、拧紧平面(18)而成；Alternatively, the conductive nozzle is to pass the blank (13) through the large hole (14), the processing body (15), the processing cylinder (19), the processing notch (20), the processing gap (21), and the conductive block (22). ), Finally processing the connecting thread and tightening the plane (18);

   或者是，导电嘴是将坯料(13)通过加工厚缺缝(25)，加工大孔(14)，加工主体(15)，加工外形(16)，最后加工连接螺纹、拧紧平面(18)而成；Or, the contact tip is to pass the blank (13) through machining the thick gap (25), machining the large hole (14), machining the body (15), machining the outline (16), and finally processing the connecting thread and tightening the plane (18). to make;

   或者是，导电嘴是将坯料(13)通过加工大孔(14)，加工主体(15)，加工圆柱体(20)，加工导电块(26)，最后加工连接螺纹、拧紧平面(18)而成；Or, the conductive nozzle is to pass the blank (13) through machining the large hole (14), machining the body (15), machining the cylinder (20), machining the conductive block (26), and finally processing the connection thread and tightening the plane (18). to make;

   或者是，导电嘴是通过将长方体坯料(30)加工成导电组合块(27)，然后将两个导电组合块(27)通过盲孔(28)和连接柱(31)进行过盈连接，最后加工焊丝过孔(24)以及后部(29)的连接螺纹(3)而成；Alternatively, the conductive tip is processed by processing a rectangular parallelepiped blank (30) into a conductive composite block (27), and then the two conductive composite blocks (27) are interference-connected through a blind hole (28) and a connecting post (31), and finally Processed by welding wire vias (24) and connecting threads (3) at the rear (29);

   或者是，导电嘴是通过将长方体坯料(30)加工成导电组合凹块(33)和导电组合凸块(36)，然后将凹孔(34)和凸台(35)进行过盈连接，最后加工焊丝过孔(24)以及后部(29)的连接螺纹(3)而成；Alternatively, the conductive nozzle is processed by processing a rectangular parallelepiped blank (30) into a conductive combination recess (33) and a conductive combination bump (36), and then the recessed hole (34) and the boss (35) are interference-connected, and finally Processed by welding wire vias (24) and connecting threads (3) at the rear (29);

   或者是，导电嘴是将坯料(13)通过加工主轮廓(37)，加工头部(38)，加工缺缝(21)，压导电块(22)，最后加工连接螺纹、拧紧平面、焊丝过孔(39)而成。Alternatively, the conductive tip passes the blank (13) through the main contour (37), the processing head (38), the gap (21), the conductive block (22), and finally processes the connection thread, tightening the plane, and welding wire. Hole (39).
3. 根据权利要求1所述的耐高温长寿命焊接导电嘴的制造方法，其特征是：焊丝过孔(24)是通过先加工大孔，再将大孔缩小的方式获得；加工时，大孔内放入芯棒；The method for manufacturing a high-temperature-resistant and long-life welding contact tip according to claim 1, characterized in that: the welding wire via (24) is obtained by first processing a large hole and then reducing the large hole; Put in a mandrel;

   或者是，焊丝过孔(24)是对导电组合块使用外力进行过盈连接后，再加工焊丝过孔(24)的方式获得；Or, the welding wire vias (24) are obtained by processing the welding wire vias (24) after an interference connection is made to the conductive combination block using an external force;

   或者是，焊丝过孔(24)是对导电组合块使用外力进行过盈连接的方式获得；加工时，在导电组合块的中间放入芯棒；Or, the welding wire via (24) is obtained by using an external force to perform an interference connection on the conductive combination block; during processing, a core rod is placed in the middle of the conductive combination block;

   或者是，焊丝过孔(24)是直接加工与焊丝直径相当的孔的方式获得。Alternatively, the wire via (24) is obtained by directly processing a hole corresponding to the diameter of the wire.
4. 根据权利要求1或者2所述的耐高温长寿命焊接导电嘴的制造方法，其特征是：导电组合块(27)上有盲孔(28)，另外还有连接柱(31)，连接柱(31)与盲孔(28)过盈配合；或者是，导电组合凹块(33)、导电组合凸块(36)上有凹孔(34)、凸台(35)，导电组合凹块(33)上的凹孔(34)与导电组合凸块(36)上的凸台(35)过盈配合，或者是导电组合凹块(33)上的凸台(35)与导电组合凸块(36)上的凹孔(34)过盈配合。The method for manufacturing a high-temperature-resistant and long-life welding contact tip according to claim 1 or 2, characterized in that: the conductive combination block (27) has a blind hole (28), and further has a connecting post (31), a connecting post ( 31) interference fit with the blind hole (28); or the conductive combination recess (33) and the conductive combination bump (36) have a recess (34), a boss (35), and a conductive combination recess (33) The recessed hole (34) on) and the projection (35) on the conductive combination bump (36) are interference fit, or the projection (35) on the conductive combination recess (33) and the conductive combination bump (36) The recess (34) on) is interference fit.
5. 根据权利要求1或者2所述的耐高温长寿命焊接导电嘴的制造方法，其特征是：在导电嘴前端加工圆柱体，加工圆柱体的同时，在圆柱体后端同步加工一个凹环(23)，然后直接加工缺缝(1)，最后压拢导电块、加工连接螺纹(3)、加工拧紧平面(4)；The method for manufacturing a high-temperature-resistant and long-life welding contact tip according to claim 1 or 2, characterized in that a cylindrical body is processed at the front end of the contact tip, and a concave ring (23 ), Then directly process the missing seam (1), finally press the conductive block, process the connection thread (3), and process the tightening plane (4);

   或者是，加工厚缺缝时，厚缺缝内有芯块；Or, when processing thick gaps, there are core blocks in the thick gaps;

   或者是，加工导电嘴时，对加工导电嘴的材料进行加热；Or, when processing the contact tip, heating the material for processing the contact tip;

   或者是，在导电嘴后部(29)采取增减角度调节垫片的方式来调节缺缝(1)的角度；Or, the angle of the gap (1) is adjusted by increasing or decreasing the angle adjustment gasket at the rear portion (29) of the conductive nozzle;

   或者是，导电块(5)的前段有一个角度。Alternatively, the front section of the conductive block (5) has an angle.
6. 耐高温长寿命焊接导电嘴，其特征是：导电嘴的前端有缺缝(1)，缺缝(1)穿过导电嘴的焊丝过孔(24)，缺缝(1)将导电嘴分割成上下两个导电块，导电块对焊丝(2)进行约束，为焊丝(2)导电，并供焊丝(2)磨损；The high-temperature-resistant and long-life welding contact tip is characterized in that the front end of the contact tip has a gap (1), the gap (1) passes through the welding wire via (24) of the contact tip, and the gap (1) divides the contact tip into Upper and lower conductive blocks, the conductive blocks restrain the welding wire (2), conduct electricity for the welding wire (2), and cause the welding wire (2) to wear;

   或者是，导电嘴的中心是大过孔(10)，导电嘴的头部有导电头(11)，导电头(11)的中心是导电孔(12)，导电孔(12)与大过孔(10)处于同一轴线上，导电头(11)对焊丝(2)进行约束，为焊丝(2)导电，并供焊丝(2)磨损；Or, the center of the conductive nozzle is a large via hole (10), the head of the conductive nozzle has a conductive head (11), the center of the conductive head (11) is a conductive hole (12), the conductive hole (12) and the large via hole (10) on the same axis, the conductive head (11) restrains the welding wire (2), conducts the welding wire (2), and causes the welding wire (2) to wear;

   或者是，导电嘴前段有加厚导电块(6)。Alternatively, a thick conductive block (6) is provided in front of the conductive tip.
7. 根据权利要求6所述的耐高温长寿命焊接导电嘴，其特征是：导电块的后端有缺口(7)或者凹环(23)；或者是导电块前端比后端窄；或者是导电块前端与后端的尺寸一致；或者是导电块为圆锥形；The high-temperature-resistant and long-life welding contact tip according to claim 6, characterized in that: the rear end of the conductive block has a gap (7) or a concave ring (23); or the front end of the conductive block is narrower than the rear end; or the conductive block The front and back dimensions are the same; or the conductive block is conical;

   或者是导电嘴的前端有多个缺缝(1)。Or there are multiple gaps (1) at the front end of the contact tip.
8. 根据权利要求6所述的耐高温长寿命焊接导电嘴，其特征是：导电块是由加工缺缝(1)后形成；或者是由厚缺缝加工缺缝(1)而形成；或者是由导电组合块通过过盈连接而成；The high-temperature-resistant and long-life welding contact tip according to claim 6, characterized in that: the conductive block is formed by processing the gap (1); or is formed by processing the gap (1) with a thick gap; or The conductive combination block is made by interference connection;

   焊丝过孔(24)是通过加工与焊丝(2)直径相当的孔的方式获得；或者是先加工大孔再将大孔缩小后获得；Welding wire vias (24) are obtained by machining holes with a diameter equal to that of the welding wire (2); or they are obtained by processing large holes and then reducing the large holes;

   导电嘴由导电组合块(27)、导电组合凹块(33)、导电组合凸块(36)过盈连接而成，导电组合块(27)、导电组合凹块(33)、导电组合凸块(36)上有盲孔(28)、凹孔(34)、凸台(35)，另外还有连接柱(31)。The contact tip is formed by the interference combination of the conductive combination block (27), the conductive combination recess (33), and the conductive combination bump (36). The conductive combination block (27), the conductive combination recess (33), and the conductive combination bump. (36) is provided with a blind hole (28), a recessed hole (34), a boss (35), and a connecting post (31).
9. 根据权利要求6所述的耐高温长寿命焊接导电嘴，其特征是：导电嘴是圆形或者多边形；或者是导电块上有定位弧面(9)；The high-temperature-resistant and long-life welding contact tip according to claim 6, characterized in that: the contact tip is circular or polygonal; or the positioning block has a curved arc surface (9);

   或者是导电嘴的后部(29)有角度调节垫片。Or the rear part (29) of the contact tip has an angle adjustment gasket.

   或者是导电嘴通过内螺纹、外螺纹、T型接头与焊枪连接；Or the conductive tip is connected to the welding torch through internal thread, external thread and T-shaped joint;

   或者是导电嘴尾部连接处有锥度；Or there is a taper at the junction of the tail of the contact tip;

   或者是导电嘴尾部进行加长。Or the tail of the contact tip is lengthened.
10. 耐高温长寿命焊接导电嘴的使用方法，其特征是：当导电块(5)磨损后，将导电块(5)向内收拢，使焊丝与导电块(5)继续保持良好的接触，如此反复，则导电嘴使用寿命可提高数倍。The method for using a high-temperature-resistant and long-life welding contact tip is characterized in that when the conductive block (5) is worn, the conductive block (5) is retracted inward so that the welding wire and the conductive block (5) continue to maintain good contact, and so on. , The life of the contact tip can be increased several times.

    或者是，当导电孔(12)磨损后，将导电孔(12)向内挤压，使焊丝与导电孔(12)继续保持良好的接触，如此反复，则导电嘴使用寿命可提高数倍甚至十几倍。Or, when the conductive hole (12) is worn out, the conductive hole (12) is squeezed inward to keep the welding wire and the conductive hole (12) in good contact. Repeatedly, the service life of the conductive nozzle can be increased several times or even More than ten times.

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