CN112404848B - Manual welding gun based on bioscience and use method thereof - Google Patents

Manual welding gun based on bioscience and use method thereof Download PDF

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Publication number
CN112404848B
CN112404848B CN202011259433.0A CN202011259433A CN112404848B CN 112404848 B CN112404848 B CN 112404848B CN 202011259433 A CN202011259433 A CN 202011259433A CN 112404848 B CN112404848 B CN 112404848B
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welding
rotating shaft
groove
rotating
gun
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CN112404848A (en
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方军杰
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Taizhou Tuoji Technology Co., Ltd
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Taizhou Tuoji Technology Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups

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  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Abstract

The invention discloses a manual welding gun based on biological science and a using method thereof, wherein the manual welding gun comprises a gun body, a rotating groove which penetrates through the gun body from front to back and is provided with an opening on the left side is arranged in the gun body, a fixing head is rotationally connected in the rotating groove, and mounting grooves with symmetrical positions are communicated in the upper wall and the lower wall of the rotating groove; the welding gun is provided with the rotatable fixing head, before the welding gun is used, the fixing head can be rotated according to the self preference and habit of a user, and then the welding rod is placed in the fixing head to be fixed, so that the angle between the welding rod and the gun body is in the habit angle of the user during welding, the hand feeling during welding can be improved, the welding quality is improved, and meanwhile, the fixing head can be rotated, so that the welding gun is also suitable for being used by people with smooth left; the user is carrying out weldment work, and the hair-dryer starts, blows gas in electric welding seam department through going out tuber pipe, flexible pipe and blowing pipe, blows away debris, thereby avoids when weldment work, thereby debris sneak into in the welding rod and reduce welding quality.

Description

Manual welding gun based on bioscience and use method thereof
Technical Field
The invention relates to the technical field of welding, in particular to a manual welding gun based on bioscience and a using method thereof.
Background
Manual arc welding is a manually operated welding method that utilizes the heat generated by an electric arc to melt and weld a rod. During welding, there are many factors that affect the quality of the weld, where welder skill and cleaning are important two parts.
The important factors for improving high-quality welding in the technical level of welders are that for a welder, the quality of a welded seam is not only determined by the level of the welder, but also determined by the quality of the welding gun, whether the welding gun conforms to the welding habit of the welder and the like. The cleaning plays a key role in the welding quality, if the welding part is not cleaned, the welding rod at the welding seam is not completely fused, and the problems of air holes, cracks and the like which influence the performance of the welding seam exist.
Disclosure of Invention
The object of the present invention is to provide a manual welding gun based on bioscience and a method of using the same, which are intended to overcome the above-mentioned drawbacks of the prior art.
The manual welding gun based on the biological science comprises a gun body, wherein a rotating groove which penetrates through the gun body in the front and back direction and is provided with an opening on the left side is formed in the gun body, a fixing head is rotationally connected in the rotating groove, mounting grooves which are symmetrical in position are communicated in the upper wall and the lower wall of the rotating groove, a first rotating shaft which is fixedly connected with the upper surface and the lower surface of the fixing head is rotationally connected in the mounting groove, a clamping groove with an opening on the left side is formed in the fixing head, first sliding grooves which are symmetrical in position are communicated in the front wall and the rear wall of the clamping groove, a clamping block is slidably connected in the first sliding grooves, the clamping block is fixedly connected with the outer wall of the first sliding groove through a first spring, an electromagnet is arranged in the outer wall of the first sliding groove, a second sliding groove is formed in the right side of the clamping groove, a motor is fixedly arranged on the right wall of the second sliding groove, a threaded, a moving block is connected to the threaded shaft in a threaded manner, a connecting rod which extends into the clamping groove and is symmetrical in vertical position is fixedly arranged on the left side face of the moving block, a push plate is fixedly arranged at the tail end of the left side of the connecting rod, a blower is arranged in the gun body on the right side of the rotating groove, an air inlet pipe which penetrates through the upper surface of the gun body is arranged on the top surface of the blower, an air outlet pipe which extends into the rotating groove is arranged on the left side face of the blower, blowing pipes penetrate through the left side and the right side of the fixing head below the clamping groove and the second sliding groove, the blowing pipes are communicated with the air outlet pipe through telescopic pipes, a first rotating cavity with a downward opening is arranged on the bottom surface of the gun body, a second rotating shaft is rotatably connected between the front wall and the rear wall of the first rotating cavity, a downward extending pulling handle is fixedly arranged on the second rotating shaft, and the front side face of, the handle can limit the rotation of the first rotating shaft through a control device.
Optionally, the control device includes a first pulley fixedly disposed on the second rotating shaft, a third sliding groove with symmetrical positions is formed in the left and right walls of the mounting groove above the first pulley, a brake block is slidably connected in the third sliding groove, the brake block is fixedly connected with the inner wall of the third sliding groove through a second spring, a roller is rotatably connected in the gun body outside the third sliding groove, a second rotating cavity is disposed behind the third sliding groove, a third rotating shaft extending rightward is rotatably connected to the left wall of the second rotating cavity, a cable winding wheel with symmetrical positions is fixedly disposed on the third rotating shaft, a cable is fixedly disposed on the cable winding wheel, the cable is fixed to the outer side surface of the brake block by passing through the roller, a third rotating cavity is disposed on the right side of the second rotating cavity, the third rotating shaft extends rightward into the third rotating cavity, and a first bevel gear is fixedly disposed at the end of the right side of the third rotating shaft, a fourth rotating shaft is rotatably connected between the front wall and the rear wall of the third rotating cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the fourth rotating shaft, a second belt wheel is fixedly arranged on the fourth rotating shaft, and the second belt wheel and the first belt wheel are in transmission through a belt.
Optionally, a transformer is fixedly arranged on the right side surface of the gun body, an electric wire is arranged on the right side surface of the transformer, and electric power is transmitted between the motor and the transformer through a connecting wire.
Optionally, a handle is mounted on the bottom surface of the transformer.
Optionally, a control button is installed on the front side of the transformer.
Optionally, a left-right through limiting groove is formed in the inner side surface of the clamping block.
A usage method of a manual welding gun based on biological science comprises the following specific steps:
firstly, a user holds a handle, then manually stirs a stirring handle, the stirring handle drives a first belt pulley to rotate through a second rotating shaft, the first belt pulley drives a second belt pulley to rotate through a belt, the second belt pulley drives a second bevel gear to rotate through a fourth rotating shaft, the second bevel gear drives a third rotating shaft to rotate through a first bevel gear, the third rotating shaft drives a cable winding wheel to rotate, the cable winding wheel drives a brake block to move into a third sliding groove through a steel cable, the first rotating shaft can freely rotate, and then the other hand rotates a fixing head to the most comfortable angle when the user welds;
secondly, pressing a control button, controlling a motor to start by the control button to drive a threaded shaft to rotate, moving a moving block to move left along the threaded shaft, driving a push plate to move left through a connecting rod, controlling an electromagnet to start by the control button to attract a clamping block to move towards a first sliding groove, placing a welding rod into the clamping groove, pressing the control button again, controlling the motor to start to rotate reversely by the control button to drive the push plate to move right, manually placing the tail end of the welding rod between the clamping blocks, controlling the electromagnet to power off by the control button, moving the clamping block towards the clamping groove under the action of a first spring, clamping the welding rod in a limiting groove, and fixing the welding rod;
and thirdly, the user carries out welding work through the welding rods clamped in the limiting grooves, when the welding work is carried out, the blower is started, air is blown to the welding seam through the air outlet pipe, the telescopic pipe and the air blowing pipe, sundries are blown away, after the welding work is finished, the control button is pressed, and the control motor drives the push plate to move leftwards to discharge the residual welding rods.
The invention has the beneficial effects that:
firstly, when a user performs welding work, a blower is started, air is blown to the welding seam through an air outlet pipe, a telescopic pipe and an air blowing pipe, and sundries and a coating falling from a welding rod are blown away, so that the sundries are prevented from being mixed into the welding rod during the welding work, and the welding quality is reduced;
secondly, the rotatable fixing head is arranged, before the welding gun is used, the fixing head can be rotated according to the self preference and habit of a user, then the welding rod is placed in the fixing head to be fixed, so that the angle between the welding rod and the gun body is in the habit angle of the user during welding, the hand feeling during welding can be improved, the welding quality is improved, and meanwhile, the rotatable fixing head is also suitable for being used by people with handedness.
Drawings
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
FIG. 1 is a schematic view of a bioscience-based manual welding gun of the present invention;
FIG. 2 is a schematic view of the structure of the installation groove in FIG. 1;
FIG. 3 is a schematic view of the structure at A-A in FIG. 1;
FIG. 4 is a schematic view of the structure at B-B in FIG. 1;
FIG. 5 is a schematic view of the structure of FIG. 1 at the fixation head;
fig. 6 is a schematic view of the structure at C-C in fig. 5.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 6, a manual welding gun based on bioscience according to an embodiment of the present invention includes a gun body 11, a rotating slot 12 penetrating through the gun body 11 in a front-rear direction and having an open left side is provided, a fixing head 28 is rotatably connected to the rotating slot 12, mounting slots 27 having symmetrical positions are provided in upper and lower walls of the rotating slot 12, a first rotating shaft 26 fixedly connected to upper and lower surfaces of the fixing head 28 is rotatably connected to the mounting slots 27, a clamping slot 47 having an open left side is provided in the fixing head 28, a first sliding slot 56 having a symmetrical position is provided in the front and rear walls of the clamping slot 47, a clamping block 45 is slidably connected to the first sliding slot 56, the clamping block 45 is fixedly connected to an outer wall of the first sliding slot 56 through a first spring 55, an electromagnet 54 is provided in an outer wall of the first sliding slot 56, a second sliding slot 52 is provided on a right side of the clamping slot 47, a motor 53 is fixedly arranged on the right wall of the second sliding groove 52, a threaded shaft 50 rotatably connected with the left wall of the second sliding groove 52 is mounted on the left side surface of the motor 53, a moving block 51 is connected with the threaded shaft 50 in a threaded manner, connecting rods 49 which are symmetrical in the vertical direction and extend into the clamping groove 47 are fixedly arranged on the left side surface of the moving block 51, a push plate 48 is fixedly arranged at the left end of each connecting rod 49, a blower 15 is arranged in the gun body 11 on the right side of the rotating groove 12, an air inlet pipe 14 penetrating through the upper surface of the gun body 11 is mounted on the top surface of the blower 15, an air outlet pipe 23 extending into the rotating groove 12 is mounted on the left side surface of the blower 15, blowing pipes 25 penetrate left and right in the fixing head 28 below the clamping groove 47 and the second sliding groove 52, the blowing pipes 25 are communicated with the air outlet pipe 23 through telescopic pipes 24, and a first rotating cavity 22 with a downward opening is arranged, a second rotating shaft 35 is rotatably connected between the front wall and the rear wall of the first rotating cavity 22, a downward extending handle 21 is fixedly arranged on the second rotating shaft 35, the front side surface of the handle 21 is fixedly connected with the front wall of the first rotating cavity 22 through a coil spring 34 sleeved outside the second rotating shaft 35, and the handle 21 can limit the rotation of the first rotating shaft 26 through a control device 101.
Preferably, the control device 101 includes a first pulley 36 fixed on the second rotating shaft 35, a third sliding groove 30 with symmetrical positions is arranged in the left and right walls of the mounting groove 27, a brake block 29 is connected in the third sliding groove 30 in a sliding manner, the brake block 29 is fixedly connected with the inner wall of the third sliding groove 30 through a second spring 31, a roller 33 is rotatably connected to the gun body 11 at the outer side of the third sliding groove 30, a second rotating chamber 38 is arranged behind the third sliding groove 30, a third rotating shaft 40 extending rightward is rotatably connected to the left wall of the second rotating chamber 38, a cable winding wheel 39 with symmetrical positions is fixed on the third rotating shaft 40, a cable 32 is fixed on the cable winding wheel 39, the cable 32 is fixed on the outer side surface of the brake block 29 by winding the roller 33, and a third rotating chamber 16 is arranged at the right side of the second rotating chamber 38, the third rotating shaft 40 extends rightwards into the third rotating cavity 16, a first bevel gear 41 is fixedly arranged at the tail end of the right side of the third rotating shaft 40, a fourth rotating shaft 43 is rotatably connected between the front wall and the rear wall of the third rotating cavity 16, a second bevel gear 42 meshed with the first bevel gear 41 is fixedly arranged on the fourth rotating shaft 43, a second belt wheel 44 is fixedly arranged on the fourth rotating shaft 43, the second belt wheel 44 and the first belt wheel 36 are transmitted through a belt 37, the angle between the fixing head 28 and the gun body 11 can be adjusted, and a user can adjust the angle of a welding rod according to own preference.
Preferably, a transformer 17 is fixedly arranged on the right side of the gun body 11, an electric wire 18 is arranged on the right side of the transformer 17, and the electric power is transmitted between the motor 53 and the transformer 17 through a connecting wire 13.
Preferably, a handle 20 is mounted on the bottom surface of the transformer 17.
Preferably, the front side of the transformer 17 is provided with a control button 19, and the control button 19 is electrically connected with the motor 53 and the electromagnet 54.
Preferably, the clamping block 45 is provided with a left and right penetrating limiting groove 46 on the inner side surface, and the limiting groove 46 can fix the position of the welding rod to prevent the welding rod from moving in the welding process.
A usage method of a manual welding gun based on biological science comprises the following specific steps:
firstly, a user holds the handle 20, then manually dials the dial 21, the dial 21 drives the first pulley 36 to rotate through the second rotating shaft 35, the first pulley 36 drives the second pulley 44 to rotate through the belt 37, the second pulley 44 drives the second bevel gear 42 to rotate through the fourth rotating shaft 43, the second bevel gear 42 drives the third rotating shaft 40 to rotate through the first bevel gear 41, the third rotating shaft 40 drives the cable pulley 39 to rotate, the cable pulley 39 drives the brake block 29 to move into the third sliding groove 30 through the steel cable 32, the first rotating shaft 26 can rotate freely, and then the other hand rotates the fixing head 28 to the most comfortable angle for the user to weld;
secondly, pressing the control button 19, controlling the motor 53 to start by the control button 19, driving the threaded shaft 50 to rotate, moving the moving block 51 to move leftwards along the threaded shaft 50, driving the push plate 48 to move leftwards by the connecting rod 49, controlling the electromagnet 54 to start by the control button 19, attracting the clamping block 45 to move inwards the first sliding groove 56, placing the welding rod into the clamping groove 47, pressing the control button 19 again, controlling the motor 53 to start to reverse by the control button 19, driving the push plate 48 to move rightwards, manually placing the tail end of the welding rod between the clamping blocks 45, controlling the electromagnet 54 to be powered off by the control button 19, moving the clamping block 45 inwards the clamping groove 47 under the action of the first spring 55, clamping the welding rod into the limiting groove 46, and fixing the welding rod;
and thirdly, the user performs welding operation through the welding rods clamped in the limiting groove 46, during the welding operation, the blower 15 is started, air is blown to the welding seam through the air outlet pipe 23, the extension pipe 24 and the air blowing pipe 25 to blow away sundries, after the welding operation is completed, the control button 19 is pressed, and the control motor 53 drives the push plate 48 to move leftwards to discharge the residual welding rods.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (7)

1. The utility model provides a manual welding rifle based on biological science, includes the rifle body, its characterized in that: a rotating groove which penetrates through the gun body in the front and back direction and is provided with an opening at the left side is arranged in the gun body, a fixing head is rotationally connected in the rotating groove, mounting grooves with symmetrical positions are communicated and arranged in the upper wall and the lower wall of the rotating groove, a first rotating shaft fixedly connected with the upper surface and the lower surface of the fixing head is rotationally connected in the mounting groove, a clamping groove with an opening at the left side is arranged in the fixing head, a first sliding groove with symmetrical positions is communicated and arranged in the front wall and the rear wall of the clamping groove, a clamping block is slidably connected in the first sliding groove, the clamping block is fixedly connected with the outer wall of the first sliding groove through a first spring, an electromagnet is arranged in the outer wall of the first sliding groove, a second sliding groove is arranged on the right side of the clamping groove, a motor is fixedly arranged on the right wall of the second sliding groove, a threaded shaft which is rotationally connected with, a connecting rod which extends into the clamping groove and is symmetrical up and down is fixedly arranged on the left side surface of the moving block, a push plate is fixedly arranged at the tail end of the left side of the connecting rod, a blower is arranged in the gun body on the right side of the rotating groove, an air inlet pipe which penetrates through the upper surface of the gun body is arranged on the top surface of the blower, an air outlet pipe which extends into the rotating groove is arranged on the left side surface of the blower, blowing pipes are arranged in the fixing head below the clamping groove and the second sliding groove in a left-right penetrating manner, the blowing pipes are communicated with the air outlet pipe through telescopic pipes, a first rotating cavity with a downward opening is arranged on the bottom surface of the gun body, a second rotating shaft is rotatably connected between the front wall and the rear wall of the first rotating cavity, a pulling handle which extends downwards is fixedly arranged on the second rotating shaft, and the front side surface of the pulling handle is fixedly, the handle can limit the rotation of the first rotating shaft through a control device.
2. The manual bioscience-based welding gun of claim 1, wherein: the control device comprises a first belt pulley fixedly arranged on the second rotating shaft, third sliding grooves with symmetrical positions are communicated in the left wall and the right wall of the mounting groove above the first belt pulley, a brake block is connected in the third sliding grooves in a sliding manner, the brake block is fixedly connected with the inner walls of the third sliding grooves through second springs, rollers are rotatably connected in the gun body at the outer sides of the third sliding grooves, a second rotating cavity is arranged behind the third sliding grooves, a third rotating shaft extending rightwards is rotatably connected to the left wall of the second rotating cavity, cable winding wheels with symmetrical left positions and right positions are fixedly arranged on the third rotating shaft, steel cables are fixedly arranged on the cable winding wheels, the steel cables are fixed on the outer side surface of the brake block by winding the rollers, a third rotating cavity is arranged at the right side of the second rotating cavity, the third rotating shaft extends rightwards into the third rotating cavity, and a first bevel gear is fixedly arranged at the tail end of the right side of the third rotating shaft, a fourth rotating shaft is rotatably connected between the front wall and the rear wall of the third rotating cavity, a second bevel gear meshed with the first bevel gear is fixedly arranged on the fourth rotating shaft, a second belt wheel is fixedly arranged on the fourth rotating shaft, and the second belt wheel and the first belt wheel are in transmission through a belt.
3. The manual bioscience-based welding gun of claim 2, wherein: the gun body right flank has set firmly the transformer, the electric wire is installed to the transformer right flank, the motor with pass through the connecting wire transmission electric power between the transformer.
4. The manual bioscience-based welding gun of claim 3, wherein: and a handle is arranged on the bottom surface of the transformer.
5. The manual bioscience-based welding gun of claim 4, wherein: and a control button is arranged on the front side surface of the transformer.
6. The manual bioscience-based welding gun of claim 5, wherein: and a limiting groove which penetrates through the clamping block from left to right is formed in the inner side surface of the clamping block.
7. The manual bioscience-based welding gun of claim 6, which is used in the following way:
firstly, a user holds a handle, then manually stirs a stirring handle, the stirring handle drives a first belt pulley to rotate through a second rotating shaft, the first belt pulley drives a second belt pulley to rotate through a belt, the second belt pulley drives a second bevel gear to rotate through a fourth rotating shaft, the second bevel gear drives a third rotating shaft to rotate through a first bevel gear, the third rotating shaft drives a cable winding wheel to rotate, the cable winding wheel drives a brake block to move into a third sliding groove through a steel cable, the first rotating shaft can freely rotate, and then the other hand rotates a fixing head to the most comfortable angle when the user welds;
secondly, pressing a control button, controlling a motor to start by the control button to drive a threaded shaft to rotate, moving a moving block to move left along the threaded shaft, driving a push plate to move left through a connecting rod, controlling an electromagnet to start by the control button to attract a clamping block to move towards a first sliding groove, placing a welding rod into the clamping groove, pressing the control button again, controlling the motor to start to rotate reversely by the control button to drive the push plate to move right, manually placing the tail end of the welding rod between the clamping blocks, controlling the electromagnet to power off by the control button, moving the clamping block towards the clamping groove under the action of a first spring, clamping the welding rod in a limiting groove, and fixing the welding rod;
and thirdly, the user carries out welding work through the welding rods clamped in the limiting grooves, when the welding work is carried out, the blower is started, air is blown to the welding seam through the air outlet pipe, the telescopic pipe and the air blowing pipe, sundries are blown away, after the welding work is finished, the control button is pressed, and the control motor drives the push plate to move leftwards to discharge the residual welding rods.
CN202011259433.0A 2020-11-12 2020-11-12 Manual welding gun based on bioscience and use method thereof Active CN112404848B (en)

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CN202011259433.0A CN112404848B (en) 2020-11-12 2020-11-12 Manual welding gun based on bioscience and use method thereof

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Application Number Priority Date Filing Date Title
CN202011259433.0A CN112404848B (en) 2020-11-12 2020-11-12 Manual welding gun based on bioscience and use method thereof

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CN112404848A CN112404848A (en) 2021-02-26
CN112404848B true CN112404848B (en) 2021-07-16

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115647635B (en) * 2022-11-14 2023-03-14 中安恒慧建设集团有限公司 Welding manufacturing device for steel structure framework of building decoration curtain wall

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000197975A (en) * 1998-12-25 2000-07-18 Yoshiaki Shima Welding gun
CN102672379A (en) * 2011-03-14 2012-09-19 施风雷 Hot-air welding gun
CN203356824U (en) * 2013-05-08 2013-12-25 郑州正宇环保科技有限公司 Welding gun for collecting welding fume
CN111215734A (en) * 2020-04-08 2020-06-02 温州新兰智能科技有限公司 Electric welding gun capable of automatically replacing welding rod
CN111843135A (en) * 2020-07-27 2020-10-30 郑州标富科技有限公司 Automatic change welding rod and adjustable feed speed's electric welding gun device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000197975A (en) * 1998-12-25 2000-07-18 Yoshiaki Shima Welding gun
CN102672379A (en) * 2011-03-14 2012-09-19 施风雷 Hot-air welding gun
CN203356824U (en) * 2013-05-08 2013-12-25 郑州正宇环保科技有限公司 Welding gun for collecting welding fume
CN111215734A (en) * 2020-04-08 2020-06-02 温州新兰智能科技有限公司 Electric welding gun capable of automatically replacing welding rod
CN111843135A (en) * 2020-07-27 2020-10-30 郑州标富科技有限公司 Automatic change welding rod and adjustable feed speed's electric welding gun device

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