Welding machine contact tube capable of adjusting current and using method of welding machine contact tube

Abstract

The invention discloses a current-adjustable welding machine contact tube and a using method thereof, and the current-adjustable welding machine contact tube is applied to the technical field of welding machine contact tubes. A contact tube main body is composed of a connecting section, an external thread cylinder and an extending section, and the connecting section and the extending section are designed to be detachable; according to the electric conduction nozzle, the welding wire channel in the electric conduction nozzle body can be conveniently cleaned, the abraded extending section part can be conveniently replaced, and therefore the overall replacement cost is reduced, the cleaning structure composed of the surrounding assembly and the blowing assembly is arranged, the surface of the welding wire can be wiped through the surrounding assembly when the welding wire passes through the cleaning structure, and the welding wire can be conveniently cleaned. And impurities such as burrs are removed, and dirt on the surface of the welding wire is further removed in cooperation with the injection assembly connected with high-pressure gas, so that the impurities and the dirt on the surface of the welding wire are removed before the welding wire enters the extension section, and the abrasion to the interior of the contact tube main body and the influence on the welding quality are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of welding machine conductive nozzles, and in particular relates to an adjustable current welding machine conductive nozzle and a use method thereof. Background Art

[0002] The welding machine conductive nozzle is a key component in an adjustable current welding machine. It is usually made of materials with good conductivity such as copper and installed at the front end of the welding gun. Its main function is to conduct the welding current to the welding wire, so that the welding wire generates high temperature and melts under the action of the current, thereby realizing the welding process. The conductive nozzle is provided with a welding wire channel inside. The welding wire extends through the welding wire channel and accurately reaches the welding position under the guidance of the conductive nozzle. Due to the high temperature and wear generated during the welding process, the conductive nozzle is a consumable part and needs to be replaced regularly to ensure welding quality and stability.

[0003] During the welding process, the sensitivity of the conductive nozzle to the quality of the welding wire has always been an important factor affecting the welding quality and the life of the conductive nozzle. When the existing conductive nozzle faces problems such as burrs, threads, poor straightening, and dirty surface on the welding wire, it is easy to have poor contact and increased wear, which affects the welding effect and increases costs.

[0004] Combining the above-mentioned problems, it is found that it is difficult to avoid the above-mentioned problems at the same time when the existing devices on the market are in use, thus failing to achieve the desired effect. Therefore, we propose an adjustable current welding machine conductive nozzle which can solve the problem that the existing conductive nozzle is sensitive to the quality of welding wire during use. Through a unique structural design, it can automatically adapt to welding wires of different qualities, ensure a stable welding effect and extend the service life of the conductive nozzle. Summary of the invention

[0005] The purpose of the present invention is to provide an adjustable current welding machine conductive nozzle. The conductive nozzle body is composed of a connecting section, an external threaded barrel and an extension section. The connecting section and the extension section are designed to be detachable, which not only facilitates the cleaning of the welding wire channel inside the conductive nozzle body, but also facilitates the replacement of the worn extension section, thereby reducing the overall replacement cost. By providing a cleaning structure composed of a surrounding component and a blowing component, the surrounding component can be used to wipe the surface of the welding wire when it passes through to remove burrs and other impurities, and the blowing component connected to the high-pressure gas can be used to further remove the dirt on the surface of the welding wire, thereby removing impurities and dirt on the surface before the welding wire enters the extension section, reducing the wear on the inside of the conductive nozzle body and the impact on the welding quality. By providing a guide component, the clamping force can be automatically adjusted according to changes in the diameter and hardness of the welding wire. The guide component of the adaptive welding wire specification can correct the welding wire to ensure the straightness of the welding wire and maintain good contact, thereby avoiding the aggravation of the wear between the welding wire and the conductive nozzle body due to the straightness problem of the welding wire, thereby avoiding the current fluctuation caused by poor contact.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an adjustable current welding machine conductive nozzle, comprising a conductive nozzle body, the conductive nozzle body comprising a connecting section, the rear side of the connecting section is connected to an external threaded barrel, the front side of the connecting section is threadedly connected to an extension section, the rear side of the connecting section is provided with a cleaning structure, and the front and rear sides of the connecting section are both provided with a guide assembly, and one side of the cleaning structure and the guide assembly both extend to the outside of the connecting section;

[0007] The cleaning structure includes a surround component and a blow component, both of which are arranged on the rear side of the connecting section, and a shunt pipe is connected between the bottom and top of the surround component and the blow component, one side of the shunt pipe is connected to a connecting pipe, and the other end of the connecting pipe extends to the outside of the connecting section.

[0008] By adopting the above technical scheme, the conductive nozzle body is composed of a connecting section, an external threaded barrel and an extension section, and the connecting section and the extension section are designed to be detachable, which not only facilitates the cleaning of the welding wire channel inside the conductive nozzle body, but also facilitates the replacement of the worn extension section, thereby reducing the overall replacement cost. By setting a cleaning structure composed of a surrounding component and a blowing component, the surrounding component can be used to wipe the surface of the welding wire when it passes through to remove burrs and other impurities, and the blowing component connected to the high-pressure gas can be used to further clean the dirt on the surface of the welding wire, thereby removing impurities and dirt on the surface before the welding wire enters the extension section, reducing the wear on the inside of the conductive nozzle body and the impact on the welding quality. By setting a guide component, the clamping force can be automatically adjusted according to changes in the diameter and hardness of the welding wire. The guide component that is adaptive to the specifications of the welding wire can correct the welding wire to ensure the straightness of the welding wire and maintain good contact, thereby avoiding the wear between the welding wire and the conductive nozzle body due to the straightness problem of the welding wire, thereby avoiding the current fluctuation caused by poor contact.

[0009] The present invention is further configured as follows: the surrounding component includes a hollow ring, the hollow ring is arranged on the rear side of the connecting section, the top and bottom of the hollow ring are connected to a guide cavity, the guide cavity is connected to the diversion pipe, the interior of the hollow ring is rotatably connected to a rotating part, and a plurality of connecting plates are arranged inside the hollow ring, the inner wall of the connecting plate is provided with elastic bristles, the connecting plate is bolted to an elastic plate on the side close to the rotating part, and the elastic plate is bolted to the rotating part on the side close to the rotating part.

[0010] By adopting the above technical solution and setting up a surround component, the high-pressure gas connected through the connecting pipe and the diverter pipe can enter the interior of the hollow ring and push the rotating part to rotate around the welding wire, which can simultaneously drive the connecting plate and the bristles to clean the surface of the welding wire, thereby removing impurities and dirt on the surface before the welding wire enters the extension section, reducing the wear on the inside of the conductive nozzle body and the impact on the welding quality, and through the setting of the elastic plate, the connecting plate can adapt to the specifications of the welding wire, ensuring good contact between the bristles and the welding wire, thereby improving the cleaning effect.

[0011] The present invention is further configured as follows: the rotating member includes a first annular plate and a second annular plate, the first annular plate and the second annular plate are respectively located on the inner wall and the interior of the hollow ring, a plurality of connecting blocks are bolted in an annular shape between the opposite sides of the first annular plate and the second annular plate, and the side of the connecting block close to the second annular plate passes through the interior of the hollow ring, a plurality of push plates are bolted in an annular shape on the surface of the first annular plate, and the push plates are used in conjunction with the guide cavity, a plurality of hoses are arranged in an annular shape on the interior of the first annular plate, and the other end of the hose passes through the interior of the hollow ring and is connected to the connecting plate.

[0012] By adopting the above technical solution, a rotating part is set up, and the high-pressure gas can be guided to rotate in the hollow ring through the guide cavity, thereby pushing the push plate to rotate, so that the push plate synchronously drives the first annular plate to rotate, and drives the second annular plate to rotate through the connecting block, so as to achieve the effect of driving the connecting plate and the bristles to rotate around the surface of the welding wire, and through the hose, part of the high-pressure gas is sprayed onto the surface of the welding wire through the connecting plate, which can blow the wiped dirt away from the welding wire.

[0013] The present invention is further configured as follows: a plurality of push plates are arranged on the surface of the first annular plate in the same inclined direction, and the interior of the push plates is a hole-shaped structure.

[0014] By adopting the above technical solution, by arranging a plurality of push plates inclined in the same direction on the surface of the first annular plate, it is possible to facilitate the high-pressure gas to push the first annular plate to rotate through the push plates, and by setting the interior of the push plate to be a hole-like structure, it is possible to facilitate the effect of allowing part of the high-pressure gas to pass through the push plate into the hose.

[0015] The present invention is further configured as follows: the blowing assembly includes a fixed ring, the fixed ring is located on the front side of the hollow ring, and the top and bottom of the fixed ring are connected to the other end of the diverter pipe, the interior of the fixed ring is connected to a plurality of blowing pipes in a ring shape, and the other end of the blowing pipe is connected to a blowing head, the blowing pipe is bent and arranged backward, an annular groove is opened inside the fixed ring, and the annular groove is respectively connected to the diverter pipe and the blowing pipe.

[0016] By adopting the above technical solution and setting up a blowing assembly, the high-pressure gas connected through the diverter pipe can flow in the annular groove, and the high-pressure gas can be sprayed to the rear side through the blowing head through the blowing pipe connected to it, which can carry the dirt away from the surface of the welding wire and avoid the situation where the dirt moves with the welding wire.

[0017] The present invention is further configured as follows: the guide assembly includes a support ring, which is respectively arranged on the front and rear sides of the connecting section, support plates are arranged on the top and bottom of the support ring, and the support plate is rotatably connected to a guide wheel inside the support plate, connecting shafts are bolted on both sides of the guide wheel, and the guide wheel is rotatably connected to the support plate through the connecting shaft, a moving rod is bolted on one side of the support plate close to the inner wall of the support ring, and an elastic member is bolted on the top and bottom of the support ring, and the moving rod extends to the inside of the elastic member on one side and is used in conjunction with the elastic member.

[0018] By adopting the above technical solution, a guide assembly is set up, so that the welding wire can pass through between the two guide wheels, and the guide wheel is rotatably connected to the support plate through the connecting shaft, which can reduce the friction between the guide wheel and the welding wire, and through the coordinated use of the elastic member and the movable rod, the clamping force can be automatically adjusted according to the changes in the diameter and hardness of the welding wire. The guide assembly of the adaptive welding wire specification can correct the welding wire to ensure the straightness of the welding wire and maintain good contact, thereby avoiding the aggravation of the wear between the welding wire and the conductive nozzle body due to the straightness problem of the welding wire, thereby avoiding the current fluctuation caused by poor contact.

[0019] The present invention is further configured as follows: the elastic member includes a fixed shell, the fixed shell is bolted to a side close to the support ring, and the other side of the fixed shell extends to the outside of the connecting section, the interior of the fixed shell is slidably connected with an extrusion plate and a synchronization plate, and a positioning spring is connected between the extrusion plate and the opposite side of the synchronization plate, the extrusion plate is rotatably connected with an adjusting bolt on a side away from the positioning spring, and the other side of the adjusting bolt extends to the outside of the fixed shell and is threadedly connected thereto, a locking nut is threadedly connected to the surface of the adjusting bolt, and the locking nut is in close contact with the side close to the fixed shell.

[0020] By adopting the above technical solution, by setting an elastic part, the degree of extrusion of the extrusion plate on the positioning spring can be adjusted by adjusting the thread cooperation of the bolt and the fixed shell, thereby adjusting the positioning strength of the positioning spring on the synchronization plate and the moving rod, so that the clamping force of the guide wheel on the welding wire has flexible adjustment, and can automatically adjust the clamping force according to changes in the diameter, hardness, etc. of the welding wire, thereby achieving an adaptive effect.

[0021] The present invention is further configured as follows: the rear side of the interior of the external threaded barrel is conically arranged, the rear side of the extension section surface is provided with threads, the front side of the interior of the connecting section is provided with a threaded slot, and the threaded slot is arranged in a step shape and is used in conjunction with the extension section.

[0022] By adopting the above technical solution, the conical setting of the rear side of the inner part of the external threaded barrel can facilitate the passage of the welding wire, and the step-shaped threaded groove can realize the connection between the extension section and the connecting section, thereby facilitating the disassembly and assembly between the two.

[0023] The present invention is further configured as follows: the conductive nozzle body, the cleaning structure and the guide assembly are all made of high temperature resistant materials.

[0024] By adopting the above technical solution, by setting the conductive nozzle body, cleaning structure and guide assembly to be made of high-temperature resistant materials, the high-temperature resistance of the conductive nozzle body, cleaning structure and guide assembly can be enhanced, thereby reducing the replacement frequency of the conductive nozzle, which is beneficial to cost control.

[0025] A method for using a conductive nozzle of an adjustable current welding machine comprises the following steps:

[0026] S1. Through the threaded cooperation between the extension section and the connecting section, the extension section and the connecting section can be disassembled and assembled, so that the welding wire channel inside the conductive nozzle body can be easily cleaned and the worn parts of the extension section can be easily replaced. The connecting section and the extension section are connected to the adjustable current welding machine through the external threaded barrel;

[0027] S2. One end of the welding wire is passed through the external threaded barrel and the cleaning structure, and the surrounding component wipes the surface of the welding wire to remove burrs and other impurities, and then the high-pressure gas connected to the blowing component further removes dirt on the surface of the welding wire;

[0028] S3. The cleaned welding wire passes through the inside of the guide assembly. The guide assembly with adaptive welding wire specifications can correct the welding wire to ensure the straightness of the welding wire. Finally, the welding wire moves to the extension section. The welding current is conducted to the welding wire through the connecting section and the extension section by the adjustable current welding, so that the welding wire generates high temperature and melts under the action of the current, thereby realizing the welding process.

[0029] In summary, the present invention has the following beneficial effects:

[0030] 1. The conductive nozzle body is composed of a connecting section, an external threaded barrel and an extension section, and the connecting section and the extension section are designed to be detachable, which not only facilitates the cleaning of the welding wire channel inside the conductive nozzle body, but also facilitates the replacement of the worn extension section, thereby reducing the overall replacement cost. By setting a cleaning structure composed of a surrounding component and a blowing component, the surrounding component can be used to wipe the surface of the welding wire when it passes through to remove burrs and other impurities, and the blowing component connected to high-pressure gas can be used to further clean the dirt on the surface of the welding wire, thereby removing impurities and dirt on the surface before the welding wire enters the extension section, reducing the wear on the inside of the conductive nozzle body and the impact on the welding quality;

[0031] 2. By setting the guide component, the clamping force can be automatically adjusted according to the changes in the diameter and hardness of the welding wire. The guide component of the adaptive welding wire specification can correct the welding wire to ensure the straightness of the welding wire and maintain good contact, thereby avoiding the aggravated wear between the welding wire and the conductive nozzle body due to the straightness problem of the welding wire, thereby avoiding current fluctuations caused by poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 is an exploded schematic diagram of the conductive nozzle body of the present invention;

[0034] Figure 3 It is a schematic diagram of the connection between the connecting section and the cleaning structure and the guide assembly of the present invention;

[0035] Figure 4 is a schematic diagram of the structure of the surround assembly of the present invention;

[0036] Figure 5 It is a schematic diagram of the connection between the rotating member and the connecting plate of the present invention;

[0037] Figure 6 It is a schematic diagram of the side view structure of the spray assembly of the present invention;

[0038] Figure 7 It is a schematic diagram of the guiding front view structure of the present invention;

[0039] Figure 8 It is a schematic diagram of the elastic member structure of the present invention;

[0040] Fig. 9 The present invention is a schematic flow chart of a method for using the conductive nozzle of an adjustable current welding machine.

[0041] Figure numerals: 1, contact nozzle body; 11, connecting section; 12, external threaded barrel; 13, extension section; 2, cleaning structure; 21, surrounding assembly; 211, hollow ring; 212, guide cavity; 213, rotating member; 2131, first annular plate; 2132, second annular plate; 2133, connecting block; 2134, pushing plate; 2135, hose; 214, connecting plate; 215, elastic bristles; 216, elastic plate; 22, Blowing assembly; 221, fixing ring; 222, blowing pipe; 223, blowing head; 224, annular groove; 23, diverter pipe; 24, connecting pipe; 3, guide assembly; 31, support ring; 32, support plate; 33, guide wheel; 34, connecting shaft; 35, moving rod; 36, elastic member; 361, fixing shell; 362, extrusion plate; 363, synchronization plate; 364, positioning spring; 365, adjusting bolt; 366, locking nut. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0043] Embodiment 1:

[0044] refer to Figure 1-6 , an adjustable current welding machine conductive nozzle, comprising a conductive nozzle body 1, the conductive nozzle body 1 comprising a connecting section 11, the rear side of the connecting section 11 is connected with an external threaded barrel 12, the front side of the connecting section 11 is threadedly connected with an extension section 13, the rear side of the connecting section 11 is provided with a cleaning structure 2, and one side of the cleaning structure 2 extends to the outside of the connecting section 11;

[0045] The cleaning structure 2 includes a surrounding component 21 and a blowing component 22, both of which are arranged at the rear side of the inside of the connecting section 11, and a shunt pipe 23 is connected between the bottom and the top of the surrounding component 21 and the blowing component 22, one side of the shunt pipe 23 is connected to a connecting pipe 24, and the other end of the connecting pipe 24 extends to the outside of the connecting section 11. By setting the conductive nozzle body 1 to be composed of the connecting section 11, the external threaded tube 12 and the extension section 13, the connecting section 11 and the extension section 13 are designed to be detachable, which not only facilitates the cleaning of the conductive nozzle body 1, but also facilitates the cleaning of the conductive nozzle body 1. The welding wire passage of the part can be cleaned, and the worn extension section 13 can be replaced conveniently, thereby reducing the overall replacement cost. By providing a cleaning structure 2 composed of a surrounding component 21 and a blowing component 22, the surrounding component 21 can be used to wipe the surface of the welding wire when the welding wire passes through to remove burrs and other impurities, and the blowing component 22 connected to the high-pressure gas can be used to further clean the dirt on the surface of the welding wire, thereby removing impurities and dirt on the surface before the welding wire enters the extension section 13, reducing the wear on the inside of the conductive nozzle body 1 and the impact on the welding quality.

[0046] like Figure 4 As shown, the surrounding component 21 includes a hollow ring 211, which is arranged at the rear side of the connecting section 11, and the top and bottom of the hollow ring 211 are connected to the guide cavity 212, and the guide cavity 212 is connected to the shunt pipe 23. The inside of the hollow ring 211 is rotatably connected to the rotating member 213, and a plurality of connecting plates 214 are arranged inside the hollow ring 211, and the inner wall of the connecting plate 214 is provided with elastic bristles 215. The side of the connecting plate 214 close to the rotating member 213 is bolted with an elastic plate 216, and the side of the elastic plate 216 close to the rotating member 213 is bolted to the elastic plate 216. Then, by setting up the surround component 21, the high-pressure gas connected through the connecting pipe 24 and the shunt pipe 23 can enter the interior of the hollow ring 211 and push the rotating member 213 to rotate around the welding wire, which can simultaneously drive the connecting plate 214 and the bristles to clean the surface of the welding wire, thereby removing impurities and dirt on the surface before the welding wire enters the extension section 13, reducing the wear on the inside of the conductive nozzle body 1 and the impact on the welding quality, and through the setting of the elastic plate 216, the connecting plate 214 can adapt to the specifications of the welding wire, ensuring good contact between the bristles and the welding wire, thereby improving the cleaning effect.

[0047] like Figure 5As shown, the rotating member 213 includes a first annular plate 2131 and a second annular plate 2132, the first annular plate 2131 and the second annular plate 2132 are respectively located on the inner wall and the interior of the hollow ring 211, a plurality of connecting blocks 2133 are bolted in an annular manner between the first annular plate 2131 and the second annular plate 2132 on opposite sides, and the side of the connecting block 2133 close to the second annular plate 2132 passes through the interior of the hollow ring 211, a plurality of push plates 2134 are bolted in an annular manner on the surface of the first annular plate 2131, and the push plates 2134 are used in conjunction with the guide cavity 212, and a plurality of hoses 2134 are provided in an annular manner inside the first annular plate 2131 135, and the other end of the hose 2135 passes through the interior of the hollow ring 211 and is connected to the connecting plate 214. By setting the rotating member 213, the high-pressure gas can be guided to rotate in the hollow ring 211 through the guide cavity 212, thereby pushing the pushing plate 2134 to rotate, so that the pushing plate 2134 synchronously drives the first annular plate 2131 to rotate, and drives the second annular plate 2132 to rotate through the connecting block 2133, so as to achieve the effect of driving the connecting plate 214 and the bristles to rotate around the surface of the welding wire, and through the hose 2135, part of the high-pressure gas is sprayed onto the surface of the welding wire through the connecting plate 214, which can blow the wiped dirt away from the welding wire.

[0048] like Figure 5 As shown, a plurality of push plates 2134 are arranged on the surface of the first annular plate 2131 at an inclination in the same direction, and the interior of the push plates 2134 is a hole-like structure. By arranging a plurality of push plates 2134 at an inclination in the same direction on the surface of the first annular plate 2131, it is possible to facilitate the high-pressure gas to push the first annular plate 2131 to rotate through the push plates 2134, and by setting the interior of the push plates 2134 to be a hole-like structure, it is possible to facilitate the effect of allowing part of the high-pressure gas to pass through the push plates 2134 into the hose 2135.

[0049] like Figure 6 As shown, the blowing assembly 22 includes a fixed ring 221, which is located on the front side of the hollow ring 211, and the top and bottom of the fixed ring 221 are connected to the other end of the shunt pipe 23, and the interior of the fixed ring 221 is connected to a plurality of blowing pipes 222 in a ring shape, and the other end of the blowing pipe 222 is connected to a blowing head 223, and the blowing pipe 222 is bent and arranged backward, and an annular groove 224 is opened inside the fixed ring 221, and the annular groove 224 is respectively connected to the shunt pipe 23 and the blowing pipe 222. By setting the blowing assembly 22, the high-pressure gas connected through the shunt pipe 23 can flow in the annular groove 224, and the high-pressure gas is sprayed to the rear side through the blowing head 223 through the blowing pipe 222 connected thereto, which can take the dirt away from the surface of the welding wire and avoid the situation where the dirt moves with the welding wire.

[0050] like Figure 2As shown, the rear side of the interior of the externally threaded barrel 12 is conically arranged, the rear side of the surface of the extension section 13 is provided with threads, the front side of the interior of the connecting section 11 is provided with a threaded slot, and the threaded slot is arranged in a step shape and is used in conjunction with the extension section 13. The rear side of the interior of the externally threaded barrel 12 is conically arranged, so that the welding wire can pass through easily, and the threaded slot arranged in a step shape can realize the connection between the extension section 13 and the connecting section 11, thereby facilitating the disassembly and assembly between the two.

[0051] like Figure 1 As shown, the conductive nozzle body 1, the cleaning structure 2 and the guide component 3 are all made of high temperature resistant materials. By setting the conductive nozzle body 1, the cleaning structure 2 and the guide component 3 to be made of high temperature resistant materials, the high temperature resistance of the conductive nozzle body 1, the cleaning structure 2 and the guide component 3 can be enhanced, thereby reducing the replacement frequency of the conductive nozzle, which is beneficial to cost control.

[0052] Brief description of the use process: Through the threaded cooperation of the extension section 13 and the connecting section 11, the extension section 13 and the connecting section 11 can be disassembled and assembled, and the connecting section 11 and the extension section 13 are connected to the adjustable current welding machine through the external threaded tube 12, and then one end of the welding wire passes through the external threaded tube 12 and enters the channel formed between the plurality of connecting plates 214, and at the same time, the high-pressure gas connected through the connecting pipe 24 and the shunt pipe 23 enters the interior of the hollow ring 211 and rotates inside it, thereby pushing the push plate 2134 to rotate, so that the push plate 2134 synchronously drives the first annular plate 2131 to rotate, and drives the second annular plate 2132 to rotate through the connecting block 2133, thereby driving the connecting plate 214 The brush and the bristles rotate around the surface of the welding wire to clean the surface of the welding wire, thereby removing impurities and dirt on the surface before the welding wire enters the extension section 13, reducing the wear on the inside of the conductive nozzle body 1 and the impact on the welding quality, and the hole structure inside the push plate 2134 allows part of the high-pressure gas to pass through the push plate 2134 into the inside of the hose 2135, and pass through the connecting plate 214 to be sprayed on the surface of the welding wire, so that the wiped dirt can be blown away from the welding wire, and then the high-pressure gas connected through the shunt pipe 23 flows in the annular groove 224, and is sprayed to the rear side through the blowing head 223 through the blowing pipe 222 connected thereto, which can take the dirt away from the surface of the welding wire and avoid the situation where the dirt moves with the welding wire.

[0053] Embodiment 2:

[0054] refer to Figure 7-8, including a conductive nozzle body 1, the conductive nozzle body 1 includes a connecting section 11, the rear side of the connecting section 11 is connected to an external threaded tube 12, the front side of the connecting section 11 is threadedly connected to an extension section 13, and the front and rear sides of the connecting section 11 are both provided with guide components 3, one side of the guide component 3 extends to the outside of the connecting section 11, by setting the guide component 3, the clamping force can be automatically adjusted according to changes in the diameter and hardness of the welding wire, and the guide component 3 of the adaptive welding wire specification can correct the welding wire to ensure the straightness of the welding wire and maintain good contact, thereby avoiding the aggravation of the wear between the welding wire and the conductive nozzle body 1 due to the straightness problem of the welding wire, thereby avoiding the current fluctuation caused by poor contact.

[0055] like Figure 7 As shown, the guide assembly 3 includes a support ring 31, which is respectively arranged on the front and rear sides of the connecting section 11, and support plates 32 are arranged on the top and bottom of the support ring 31, and the support plate 32 is rotatably connected to the inside of the guide wheel 33, and connecting shafts 34 are bolted on both sides of the guide wheel 33, and the guide wheel 33 is rotatably connected to the support plate 32 through the connecting shaft 34, and a moving rod 35 is bolted on one side of the support plate 32 close to the inner wall of the support ring 31, and an elastic member 36 is bolted on the top and bottom of the support ring 31, and the moving rod 35 extends to the inside of the elastic member 36 on one side thereof and cooperates with it. The guide assembly 3 is used in combination with the welding wire. The welding wire can be passed through between the two guide wheels 33 by setting the guide assembly 3, and the guide wheel 33 is rotatably connected to the support plate 32 through the connecting shaft 34, so that the friction between the guide wheel 33 and the welding wire can be reduced. Moreover, the clamping force can be automatically adjusted according to the changes of the diameter and hardness of the welding wire by using the elastic member 36 and the moving rod 35. The guide assembly 3 which is adaptive to the specifications of the welding wire can correct the welding wire to ensure the straightness of the welding wire and maintain good contact, thereby avoiding the aggravation of the wear between the welding wire and the conductive nozzle body 1 due to the straightness problem of the welding wire, thereby avoiding the current fluctuation caused by the poor contact.

[0056] like Figure 8As shown, the elastic member 36 includes a fixed shell 361, the fixed shell 361 is bolted to one side close to the support ring 31, and the other side of the fixed shell 361 extends to the outside of the connecting section 11, the interior of the fixed shell 361 is slidably connected with an extrusion plate 362 and a synchronization plate 363, and a positioning spring 364 is connected between the opposite sides of the extrusion plate 362 and the synchronization plate 363, and the side of the extrusion plate 362 away from the positioning spring 364 is rotatably connected with an adjusting bolt 365, and the other side of the adjusting bolt 365 extends to the outside of the fixed shell 361 and is threadedly connected thereto, and the adjusting bolt The surface of 365 is threadedly connected with a locking nut 366, and the locking nut 366 is in close contact with the fixed shell 361 on one side thereof. By setting the elastic member 36, the degree of extrusion of the extrusion plate 362 on the positioning spring 364 can be adjusted by adjusting the threaded cooperation of the bolt 365 and the fixed shell 361, thereby adjusting the positioning strength of the positioning spring 364 on the synchronization plate 363 and the moving rod 35, so that the clamping force of the guide wheel 33 on the welding wire is flexibly adjustable, and thus the clamping force can be automatically adjusted according to changes in the diameter, hardness, etc. of the welding wire, thereby achieving an adaptive effect.

[0057] A brief description of the usage process: first, the degree of squeezing of the extrusion plate 362 on the positioning spring 364 can be adjusted by adjusting the threaded cooperation between the bolt 365 and the fixed shell 361, thereby adjusting the positioning strength of the positioning spring 364 on the synchronous plate 363 and the moving rod 35, and then the adjusted adjusting bolt 365 is locked by the locking nut 366. When one end of the welding wire passes between the two guide wheels 33, the connecting shaft 34 is rotatably connected to the support plate 32 to reduce the friction between the guide wheel 33 and the welding wire. Under the elastic action of the positioning spring 364, the moving rod 35 is pressed against the support plate 32, so that the clamping force between the two guide wheels 33 can be automatically adjusted according to changes in the diameter and hardness of the welding wire. The guide assembly 3 with adaptive welding wire specifications can correct the welding wire to ensure the straightness of the welding wire.

[0058] like Fig. 9 As shown, the present invention also provides a method for using an adjustable current welding machine contact nozzle, comprising the following steps:

[0059] S1. Through the threaded cooperation between the extension section 13 and the connecting section 11, the extension section 13 and the connecting section 11 can be disassembled and assembled, so that the welding wire channel inside the conductive tip body 1 can be easily cleaned and the worn parts of the extension section 13 can be easily replaced. The connecting section 11 and the extension section 13 are connected to the adjustable current welding machine through the external threaded barrel 12;

[0060] S2. One end of the welding wire passes through the external threaded barrel 12 and through the cleaning structure 2, and the surrounding assembly 21 wipes the surface of the welding wire to remove burrs and other impurities, and then the high-pressure gas connected to the blowing assembly 22 further removes dirt on the surface of the welding wire;

[0061] S3. The cleaned welding wire passes through the guide component 3. The guide component 3 with adaptive welding wire specifications can correct the welding wire to ensure the straightness of the welding wire. Finally, the welding wire moves to the extension section 13. The welding current is conducted to the welding wire through the connecting section 11 and the extension section 13 by the adjustable current welding, so that the welding wire generates high temperature and melts under the action of the current, thereby realizing the welding process.

[0062] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. An adjustable current welding machine contact nozzle, comprising a contact nozzle body (1), characterized in that: The conductive nozzle body (1) comprises a connecting section (11), the rear side of the connecting section (11) is connected to an external threaded barrel (12), the front side of the connecting section (11) is threadedly connected to an extension section (13), the rear side of the connecting section (11) is provided with a cleaning structure (2), and the front and rear sides of the connecting section (11) are both provided with a guide assembly (3), and one side of the cleaning structure (2) and the guide assembly (3) both extend to the outside of the connecting section (11); The cleaning structure (2) comprises a surrounding component (21) and a blowing component (22), wherein the surrounding component (21) and the blowing component (22) are both arranged at the rear side of the interior of the connecting section (11), and a shunt pipe (23) is connected between the bottom and the top of the surrounding component (21) and the blowing component (22), one side of the shunt pipe (23) is connected to a connecting pipe (24), and the other end of the connecting pipe (24) extends to the outside of the connecting section (11).

2. The adjustable current welding machine contact nozzle according to claim 1, characterized in that: The surrounding component (21) comprises a hollow ring (211), the hollow ring (211) is arranged at the rear side of the connecting section (11), the top and bottom of the hollow ring (211) are both connected to a guide cavity (212), the guide cavity (212) is both connected to the shunt pipe (23), the interior of the hollow ring (211) is rotatably connected to a rotating member (213), and a plurality of connecting plates (214) are arranged inside the hollow ring (211), the inner wall of the connecting plate (214) is provided with elastic bristles (215), the connecting plate (214) is bolted to an elastic plate (216) on one side close to the rotating member (213), and the elastic plate (216) is bolted to the rotating member (213) on one side close to the rotating member (213).

3. The adjustable current welding machine contact nozzle according to claim 2, characterized in that: The rotating member (213) comprises a first annular plate (2131) and a second annular plate (2132), wherein the first annular plate (2131) and the second annular plate (2132) are respectively located on the inner wall and the interior of the hollow ring (211); a plurality of connecting blocks (2133) are bolted in an annular shape between opposite sides of the first annular plate (2131) and the second annular plate (2132), and a side of the connecting block (2133) close to the second annular plate (2132) passes through the interior of the hollow ring (211); a plurality of pushing plates (2134) are bolted in an annular shape on the surface of the first annular plate (2131), and the pushing plates (2134) are used in conjunction with the guide cavity (212); a plurality of hoses (2135) are arranged in an annular shape inside the first annular plate (2131), and the other end of the hose (2135) passes through the interior of the hollow ring (211) and is connected to the connecting plate (214).

4. The adjustable current welding machine contact nozzle according to claim 3, characterized in that: A plurality of push plates (2134) are arranged on the surface of the first annular plate (2131) in an inclined manner in the same direction, and the interior of the push plates (2134) is a hole-shaped structure.

5. The adjustable current welding machine contact nozzle according to claim 2, characterized in that: The blowing assembly (22) comprises a fixing ring (221), the fixing ring (221) is located at the front side of the hollow ring (211), and the top and bottom of the fixing ring (221) are both connected to the other end of the shunt pipe (23), the interior of the fixing ring (221) is connected to a plurality of blowing pipes (222) in an annular shape, and the other end of the blowing pipe (222) is connected to a blowing head (223), the blowing pipe (222) is arranged in a curved manner and is rearwardly disposed, and an annular groove (224) is provided inside the fixing ring (221), and the annular groove (224) is respectively connected to the shunt pipe (23) and the blowing pipe (222).

6. The adjustable current welding machine contact nozzle according to claim 1, characterized in that: The guide assembly (3) comprises a support ring (31), wherein the support ring (31) is respectively arranged at the front side and the rear side inside the connecting section (11), and support plates (32) are arranged at the top and the bottom inside the support ring (31), and the support plate (32) is rotatably connected to a guide wheel (33) inside the support plate (32), and connecting shafts (34) are bolted to both sides of the guide wheel (33), and the guide wheel (33) is rotatably connected to the support plate (32) through the connecting shaft (34), and a moving rod (35) is bolted to one side of the support plate (32) close to the inner wall of the support ring (31), and an elastic member (36) is bolted to the top and the bottom of the support ring (31), and the moving rod (35) is extended to the inside of the elastic member (36) on one side close to the elastic member (36) and used in conjunction with the elastic member.

7. The adjustable current welding machine contact nozzle according to claim 6, characterized in that: The elastic member (36) comprises a fixed shell (361), wherein the fixed shell (361) is bolted to a side close to the support ring (31), and the other side of the fixed shell (361) extends to the outside of the connecting section (11); an extrusion plate (362) and a synchronization plate (363) are slidably connected inside the fixed shell (361), and a positioning spring (364) is connected between opposite sides of the extrusion plate (362) and the synchronization plate (363); an adjusting bolt (365) is rotatably connected to a side of the extrusion plate (362) away from the positioning spring (364), and the other side of the adjusting bolt (365) extends to the outside of the fixed shell (361) and is threadedly connected thereto; a locking nut (366) is threadedly connected to the surface of the adjusting bolt (365), and the locking nut (366) is in close contact with the fixed shell (361) on a side close to the fixed shell (361).

8. The adjustable current welding machine contact nozzle according to claim 1, characterized in that: The rear side of the interior of the external threaded barrel (12) is conical, the rear side of the surface of the extension section (13) is provided with threads, and the front side of the interior of the connecting section (11) is provided with a threaded notch, which is arranged in a step shape and is used in conjunction with the extension section (13).

9. The adjustable current welding machine contact nozzle according to claim 1, characterized in that: The conductive nozzle body (1), the cleaning structure (2) and the guide assembly (3) are all made of high temperature resistant materials.

10. A method for using an adjustable current welding machine contact nozzle according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. The extension section (13) and the connection section (11) can be disassembled and assembled by means of the threaded cooperation between the extension section (13) and the connection section (11), so that the welding wire passage inside the conductive nozzle body (1) can be easily cleaned and the worn parts of the extension section (13) can be easily replaced. The connection section (11) and the extension section (13) are connected to an adjustable current welding machine through the external threaded barrel (12); S2. One end of the welding wire is passed through the external threaded barrel (12) and through the cleaning structure (2), and the surrounding component (21) is used to wipe the surface of the welding wire to remove burrs and other impurities, and then the high-pressure gas connected to the blowing component (22) is used to further remove dirt on the surface of the welding wire; S3. The cleaned welding wire passes through the inside of the guide assembly (3). The guide assembly (3) with adaptive welding wire specifications can correct the welding wire to ensure the straightness of the welding wire. Finally, the welding wire moves to the extension section (13). The welding current is conducted to the welding wire through the connecting section (11) and the extension section (13) by the adjustable current welding, so that the welding wire generates high temperature and melts under the action of the current, thereby realizing the welding process.

Images