A hanging wire feeding machine

Abstract

The present invention relates to the technical field of pipeline welding equipment, and discloses a hanging wire feeder. The hanging wire feeder provided by the present invention comprises a wire feeder housing assembly, a suspension assembly, two adjustment assemblies, a welding gun joint assembly, a wire feeding assembly, a welding wire reel assembly and an electrical control assembly; the upper end of the suspension assembly is detachably mounted on the welding equipment, and the lower end is mounted on the wire feeder housing assembly through the adjustment assembly; the adjustment assembly is connected between the suspension assembly and the wire feeder housing assembly to adjust the distance between the suspension assembly and the wire feeder housing; the welding gun joint assembly is arranged on one side of the wire feeder housing assembly, the welding wire reel assembly is arranged on the other side of the wire feeder housing assembly away from the welding gun joint assembly, the wire feeding assembly is arranged in the wire feeder housing assembly and between the welding wire reel assembly and the welding gun joint assembly, and the electrical control assembly is arranged on the wire feeder housing assembly. The problems of debris splashing and unstable and continuous wire feeding in the existing welding process are solved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding equipment, and in particular to a hanging wire feeder. Background Art

[0002] The electric welding machine uses the high-temperature arc generated by the instantaneous short circuit between the positive and negative poles to melt the welding wire on the welding rod and the workpiece to be welded, so as to achieve the purpose of contact and fusion. With the continuous expansion of the scale of pipeline transportation in my country, traditional manual welding technology can no longer meet the needs of production. Therefore, pipeline automated welding technology has been widely developed. In the process of welding, a stable and continuous wire feeding process is particularly important.

[0003] However, in the current traditional welding process, the wire feeding process is completed by workers holding the welding wire. During the welding process, high-temperature debris often splashes, which can easily cause harm to the health of workers, and the wire feeding is unstable and continuous. For this reason, we propose a position-adjustable automatic wire feeder to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a hanging wire feeder, which solves the problems of debris splashing and unstable and continuous wire feeding during welding in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hanging wire feeder comprises a wire feeder housing assembly, a suspension assembly, two adjustment assemblies, a welding gun joint assembly, a wire feeder assembly, a welding wire reel assembly and an electrical control assembly;

[0007] The upper end of the suspension assembly is detachably mounted on the welding equipment, and the lower end is mounted on the wire feeder housing assembly through an adjustment assembly;

[0008] The adjustment component is connected between the suspension component and the wire feeder housing component to adjust the distance between the suspension component and the wire feeder housing;

[0009] The welding gun joint assembly is arranged on one side of the wire feeder case assembly, the wire reel assembly is arranged on the other side of the wire feeder case assembly away from the welding gun joint assembly, the wire feeding assembly is arranged in the wire feeder case assembly and is located between the wire reel assembly and the welding gun joint assembly, and the electrical control assembly is arranged on the wire feeder case assembly.

[0010] The working principle and process are as follows:

[0011] The wire feeder is installed as a whole on the welding equipment through the suspension assembly, and the distance between the suspension assembly and the wire feeder case assembly can be adjusted through the adjustment assembly, thereby adjusting the position of the wire feeder case so that the wire feeding position accurately reaches the welding position; then the wire feeder is operated through the electrical control assembly, and the operation of the wire feeding assembly drives the welding wire from the wire reel assembly to the welding gun joint assembly, thereby realizing the welding operation. Through the cooperation of the wire feeding assembly and the wire reel assembly, the welding wire can be transported smoothly and continuously, ensuring the stability and continuity of the wire feeding process. The setting of the wire feeder case assembly can prevent flying debris from injuring the operator.

[0012] Furthermore, the wire feeder case assembly is a rectangular structure, including a top plate and a bottom plate arranged in parallel, the orthographic projection areas of the top plate and the bottom plate are equal and both are rectangular, the four side edges of the top plate and the bottom plate are provided with a rear plate, a right side plate, a cover plate and a left side plate in a clockwise direction, adjacent plates among the rear plate, the right side plate, the cover plate and the left side plate are interconnected and are perpendicular to the plane where the top plate and the bottom plate are located, and two adjacent plates among the top plate, the bottom plate, the rear plate, the right side plate, the cover plate and the left side plate are connected by hexagonal bolts.

[0013] The detachable arrangement of the top plate, bottom plate, rear plate, right side plate, cover plate and left side plate makes it easy to replace the welding wire in the welding wire reel assembly, and at the same time can facilitate the installation of other components and provide protection for other components.

[0014] Furthermore, the adjusting assembly includes a hinge and an adjusting connecting piece, one side of the suspension assembly is connected to the wire feeder case assembly by a hinge, and the other side opposite to the wire feeder case assembly is connected to the wire feeder case assembly by an adjusting connecting piece, the adjusting connecting piece includes a connecting plate, a linking rod, a front tensioning block, an adjusting bolt and a rear tensioning block, the connecting plate is arranged on the side of the wire feeder case assembly away from the hinge, the rear tensioning block is arranged on the side of the suspension assembly close to the connecting plate, the front tensioning block is arranged on the connecting plate, the linking rod is U-shaped, the front tensioning block and the rear tensioning block are both located in the U-shaped opening of the linking rod, the open end of the linking rod is hinged to the rear tensioning block, the free end of the linking rod is provided with a threaded hole along the center line, the threaded end of the adjusting bolt passes through the threaded hole from the outside to the inside and presses the front tensioning block.

[0015] Through the cooperation of the hinge and the adjusting connector, the adjusting bolt on the link rod can be manually controlled to change the length of the adjusting bolt inside the link rod, so that the wire feeder case assembly can be rotated at a small angle around the hinge on the other side, so that the wire feeder case assembly is in a suitable working position.

[0016] Furthermore, the welding gun joint assembly includes a welding gun joint, an air guide tube, a fixing tube and an aluminum plate, the aluminum plate being fixed on the inner wall of the wire feeder housing assembly, one end of the fixing tube being provided with an external thread, a through wire feeding hole being provided at the axial position of the welding gun joint, the welding gun joint being in the shape of a hexagonal prism and having six side surfaces, each side surface being provided with a threaded hole, one end of the fixing tube being provided with an external thread passing through the aluminum plate and being interference-connected with the aluminum plate, the side surface of the aluminum plate being fitted with the side surface of the welding gun joint, the fixing tube being threadedly connected to one of the threaded holes of the welding gun joint via the external thread, a nut being sleeved on the air guide tube, and the nut being cooperated with the air guide tube to be installed in another screw hole of the welding gun joint.

[0017] The aluminum plate is used to fix and limit the fixing tube, which is installed in the threaded holes on the sides of different welding gun joints. The welding gun joint can be rotated around the axis at a certain angle to fine-tune the position, and the air guide tube becomes a conveying device for the protective gas.

[0018] Further, the wire feeding assembly includes a shell, a stepping reduction motor is arranged in the shell, the output shaft of the stepping reduction motor is drivingly connected with a driving wheel, two ends of the driving wheel are respectively rotatably arranged on two opposite inner side walls of the shell, a driven wheel is arranged above the driving wheel, vertical long holes are opened on the opposite inner side walls of the shell at positions corresponding to the driven wheels, two ends of the driven wheel are rotatably arranged in the long holes, a vertically arranged adjustable preload pressure rod is arranged at the position corresponding to the long hole at the top of the shell, the adjustable preload pressure rod includes an upper rod and a lower rod, the upper rod is rotatably connected to the lower rod, a circle of external threads is arranged on the side of the upper rod, the lower rod of the adjustable preload pressure rod passes through the shell and extends into the long hole and is rotatably connected to the rotating shaft of the driven wheel, the upper rod of the adjustable preload pressure rod is threadedly connected to the top of the shell, wire transmission holes for passing welding wire are opened at both ends of the shell, a wire feeding nozzle is arranged at the inlet end of the wire transmission hole, the wire transmission hole is coaxially arranged with the wire feeding hole and the axis is located between the driving wheel and the driven wheel.

[0019] After the driven wheel is pressed downward by the adjustable preload pressure rod, the step reduction motor is controlled to drive the driving wheel to rotate. The driven wheel presses the welding wire into the wire feeding groove. The welding wire is transmitted by friction and compression force. The wire feeding angle is adjusted by the wire feeding nozzle component to ensure the normal transmission of the welding wire.

[0020] Furthermore, the welding wire reel assembly includes an intermediate disc, a fixed cylinder and a cylindrical welding wire reel, one end of the fixed cylinder is fixedly connected to the intermediate disc, the other end of the fixed cylinder is sleeved with the cylindrical welding wire reel, the end of the fixed cylinder is provided with a fixed cylinder rear cover for limiting and clamping the cylindrical welding wire reel to prevent movement, the welding wire is evenly wound on the cylindrical welding wire reel, four supporting angles are provided on the other side of the intermediate disc, and the intermediate disc is fixed to the inner wall of the wire feeder case assembly through the four supporting angles.

[0021] The welding wire is wound on a cylindrical wire reel, which rotates and releases the welding wire under the action of the wire feeding assembly.

[0022] Furthermore, the inner side surface of the rear plate is provided with bottom engineering plastic, and the inner side surface of the cover plate is provided with top engineering plastic.

[0023] The arrangement of the bottom engineering plastic and the top engineering plastic is beneficial to enhancing the overall strength of the wire feeder housing assembly and is beneficial to the installation of other components.

[0024] Furthermore, the electrical control component includes a welding pad, on which a transformer, a rectifier, components and connectors are provided, and vias and mounting holes are provided. The electrical control component is installed on the wire feeder housing assembly through the mounting holes using hexagon socket bolts.

[0025] Pads are metal holes used to connect component pins, vias are used to connect component pins between layers of circuit boards, transformers are used to adjust the voltage between circuit boards, and connectors are components used to connect between circuit boards.

[0026] The suspension assembly comprises a mounting back plate, a threaded hole is formed on the mounting back plate, and the mounting back plate is connected to the adjustment assembly via a hexagonal bolt.

[0027] The beneficial effects of the present invention are:

[0028] The present invention replaces manual feeding of welding wire by setting up a wire feeder housing assembly, thereby preventing debris from splashing and injuring the human body. At the same time, through the cooperation of the wire feeding assembly and the wire reel assembly, smooth and continuous feeding of the welding wire is achieved, thereby ensuring the welding effect of the welding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric diagram of the overall structure of the present invention;

[0030] Figure 2 It is the front view of the overall structure of the present invention;

[0031] Figure 3 It is a top view of the overall structure of the present invention;

[0032] Figure 4 It is a left view of the overall structure of the present invention;

[0033] Figure 5 The isometric view of the overall structure of the present invention after the side panels are installed;

[0034] Figure 6 It is an exploded view of the wire feeder housing assembly of the present invention;

[0035] Figure 7 It is an exploded view of the suspension assembly in the present invention;

[0036] Figure 8 It is an exploded view of the regulating component in the present invention;

[0037] Fig. 9 An exploded view of a welding gun joint assembly in the present invention;

[0038] Fig.10 It is a three-dimensional diagram of the outer shell structure of the wire feeding assembly in the present invention;

[0039] Fig.11 An exploded view of the welding wire reel assembly of the present invention;

[0040] Fig.12 An exploded view of the electrical control assembly of the present invention;

[0041] Fig.13 It is a schematic diagram of the internal structure of the wire feeding assembly in the present invention;

[0042] Fig.14 It is a schematic structural diagram of the adjustable preload pressure rod of the wire feeding assembly in the present invention.

[0043] In the figure: 100, wire feeder housing assembly; 101, cover plate; 102, left side plate; 103, top plate; 104, bottom engineering plastic; 105, rear plate; 106, right side plate; 107, bottom plate; 108, top engineering plastic; 200, suspension assembly; 201, mounting back plate; 300, adjustment assembly; 301, hinge; 302, adjustment connector; 3021, connecting plate; 3022, link rod; 3023, front side tension block; 3024, adjustment bolt; 3025, rear side tension block; 400, welding gun joint assembly; 401, welding gun joint; 402, air guide tube; 403, fixed shaft; 404, aluminum plate; 405, screw nut; 406, wire feeding hole; 500, wire feeding assembly; 501, housing; 502, stepping reduction motor; 503, driving wheel; 504, adjustable preload pressure rod; 5041, upper rod; 5042, lower rod; 505, wire transmission hole; 506, wire feeding nozzle; 507, driven wheel; 508, long hole; 600, welding wire reel assembly; 601, supporting angle; 602, middle disc; 603, fixed cylinder; 604, cylindrical welding wire reel; 605, fixed cylinder back cover; 700, electrical control assembly; 701, welding pad; 702, through hole; 703, rectifier; 704, connector; 705, mounting hole; 706, transformer; 707, component hole. DETAILED DESCRIPTION

[0044] Embodiment 1:

[0045] like Figure 1-Figure 6As shown, this embodiment provides a hanging wire feeder, including a wire feeder case assembly 100, a suspension assembly 200, two adjustment assemblies 300, a welding gun joint assembly 400, a wire feeding assembly 500, a wire reel assembly 600 and an electrical control assembly 700.

[0046] The wire feeder housing assembly 100 is a rectangular parallelepiped structure, including a top plate 103 and a bottom plate 107 arranged in parallel, the top plate 103 and the bottom plate 107 have equal orthographic projection areas and are both rectangular, and the four side edges of the top plate 103 and the bottom plate 107 are provided with a rear plate 105, a right side plate 106, a cover plate 101 and a left side plate 102 in clockwise order, and the adjacent plates among the rear plate 105, the right side plate 106, the cover plate 101 and the left side plate 102 are connected to each other and are perpendicular to the top plate 103 and the bottom plate 107. The top plate 103, the bottom plate 107, the rear plate 105, the right side plate 106, the cover plate 101 and the left side plate 102 are connected to each other by hexagonal bolts; the top plate 103 is provided with a cable hole, the bottom plate 107 is provided with 10 component holes 707, the rear plate 105 is provided with a threaded hole for installing a welding wire reel, the right side plate 106 is provided with a threaded hole for installing an adjustment component 300 and an electrical control component 700, and the left side plate 102 is provided with a threaded hole for installing a wire feeding component 500.

[0047] The upper end of the suspension component 200 is detachably mounted on the welding equipment, and the lower end is mounted on the wire feeder housing component 100 through the adjustment component 300.

[0048] The adjustment assembly 300 is connected between the suspension assembly 200 and the wire feeder housing assembly 100 to adjust the distance between the suspension assembly 200 and the wire feeder housing; two adjustment assemblies 300 are respectively arranged at both ends of the wire feeder housing assembly 100.

[0049] The welding gun joint assembly 400 is arranged inside the wire feeder case assembly 100, the wire reel assembly 600 is arranged inside the rear plate 105 of the wire feeder case assembly 100, the wire feeding assembly 500 is arranged inside the left side plate 102 of the wire feeder case assembly 100 and is located between the wire reel assembly 600 and the welding gun joint assembly 400, and the electrical control assembly 700 is arranged on the wire feeder case assembly 100.

[0050] The detachable arrangement of the top plate 103, the bottom plate 107, the rear plate 105, the right side plate 106, the cover plate 101 and the left side plate 102 makes it easy to replace the welding wire in the welding wire reel assembly 600, and is also conducive to the installation of other components and provides protection for other components.

[0051] like Figure 8As shown, the adjustment assembly 300 includes a hinge 301 and an adjustment connector 302. The rear side of the suspension assembly 200 is connected to the wire feeder housing assembly 100 through the hinge 301, and the front side is connected to the wire feeder housing assembly 100 through the adjustment connector 302. The adjustment connector 302 includes a connecting plate 3021, a link rod 3022, a front tension block 3023, an adjustment bolt 3024 and a rear tension block 3025. The connecting plate 3021 is arranged on the side of the wire feeder housing assembly 100 away from the hinge 301, and the rear tension block 3025 is arranged on the side of the wire feeder housing assembly 100 away from the hinge 301. 025 is arranged on the side of the suspension component 200 close to the connecting plate 3021, the front tensioning block 3023 is arranged on the connecting plate 3021, the connecting rod 3022 is U-shaped, the front tensioning block 3023 and the rear tensioning block 3025 are both located in the U-shaped opening of the connecting rod 3022, the open end of the connecting rod 3022 is hinged to the rear tensioning block 3025, and the free end of the connecting rod 3022 is provided with a threaded hole along the center line, and the threaded end of the adjusting bolt 3024 passes through the threaded hole from the outside to the inside and presses the front tensioning block 3023 tightly.

[0052] like Figure 2 and Fig. 9 As shown, the welding gun joint assembly 400 includes a welding gun joint 401, an air guide tube 402, a fixed shaft 403 and an aluminum plate 404. The aluminum plate 404 is fixed on the inner wall of the wire feeder housing assembly 100. One end of the fixed shaft 403 is provided with an external thread. A through wire feeding hole 406 is opened at the axial position of the welding gun joint 401. The welding gun joint 401 is in the shape of a hexagonal prism and has six sides. Each side is provided with a threaded hole. One end of the fixed shaft 403 provided with an external thread passes through the aluminum plate 404 and is interference-connected with the aluminum plate 404. The side of the aluminum plate 404 is fitted with the side of the welding gun joint 401. The fixed shaft 403 is threadedly connected to one of the threaded holes of the welding gun joint 401 through the external thread. A nut 405 is sleeved on the air guide tube 402. The nut 405 and the air guide tube 402 are installed in another screw hole of the welding gun joint 401.

[0053] The aluminum plate 404 is used to fix and limit the fixed shaft 403. The fixed shaft 403 is installed in the threaded holes on the sides of different welding gun joints 401. The welding gun joint 401 can be rotated around the axis at a certain angle to fine-tune the position. The air guide pipe 402 becomes a conveying device for the protective gas.

[0054] like Fig.10 as well as Fig.13 and Fig.14As shown, the wire feeding assembly 500 includes a shell 501, a stepping reduction motor 502 is arranged in the shell 501, and the output shaft of the stepping reduction motor 502 is connected to the driving wheel 503. A circle of wire feeding grooves is provided along the central position of the radial side of the driving wheel 503, and the two ends of the driving wheel 503 are rotatably arranged on two opposite inner side walls of the shell 501, and a driven wheel 507 is arranged above the driving wheel 503. Vertical long holes 508 are provided on the opposite inner side walls of the shell 501 at positions corresponding to the driven wheel 507. The two ends of the driven wheel 502 are rotatably arranged in the long holes 508, and a vertically arranged adjustable preload pressure rod 504 is provided at a position corresponding to the long hole 508 on the top of the shell 501. The adjustable preload force rod 504 includes an upper rod 5041 and a lower rod 5042, the upper rod 5041 is rotatably connected with the lower rod 5042, the side of the upper rod 5041 is provided with a circle of external threads, the lower rod 5042 of the adjustable preload force rod 504 passes through the housing 501 and extends into the long hole 508 to be rotatably connected with the rotating shaft of the driven wheel 507, the upper rod 5041 of the adjustable preload force rod 504 is connected with the top of the housing 501 by threads, the two ends of the housing 501 are provided with wire transmission holes 505 for the welding wire to pass through, the inlet end of the wire transmission hole 505 is provided with a wire feeding nozzle 506, the wire transmission hole 505 is coaxially arranged with the wire feeding hole 406, and the axis is located between the driving wheel 503 and the driven wheel 507. The driving wheel 503, the driven wheel 507 and the adjustable preload force rod 504 are each provided with two groups, which are respectively arranged at the two ends of the wire feeding direction inside the housing 501.

[0055] After the driven wheel 507 is pressed downward by the adjustable preload pressure rod 504, the stepping reduction motor 502 is controlled to drive the driving wheel 503 to rotate, and the driven wheel 507 presses the welding wire into the wire feeding groove. The welding wire is transmitted by friction and compression force, and the wire feeding angle is adjusted by the wire feeding nozzle 506 to ensure the normal transmission of the welding wire.

[0056] like Fig.11 As shown, the welding wire reel assembly 600 includes an intermediate disc 602, a fixed cylinder 603 and a cylindrical welding wire reel 604. One end of the fixed cylinder 603 is fixedly connected to the intermediate disc 602, and the other end of the fixed cylinder 603 is sleeved with the cylindrical welding wire reel 604. The end of the fixed cylinder 603 is provided with a fixed cylinder rear cover 605 for limiting and clamping the cylindrical welding wire reel 604 and preventing movement. The welding wire is evenly wound on the cylindrical welding wire reel 604. Four supporting angles 601 are provided on the other side of the intermediate disc 602, and the intermediate disc 602 is fixed to the inner wall of the wire feeder housing assembly 100 through the four supporting angles 601.

[0057] The welding wire is wound on a cylindrical welding wire reel 604, which rotates and releases the welding wire under the action of the wire feeding assembly 500.

[0058] like Figure 6As shown, the inner side of the rear plate 105 is provided with a bottom engineering plastic 104 , and the inner side of the cover plate 101 is provided with a top engineering plastic 108 .

[0059] The provision of the bottom engineering plastic 104 and the top engineering plastic 108 is beneficial to enhancing the overall strength of the wire feeder housing assembly 100 and is beneficial to the installation of other components.

[0060] like Fig.12 As shown, the electrical control component 700 includes a soldering pad 701, on which a transformer 706, a rectifier 703, components 707 and a connector 704 are provided, and a through hole 702 and a mounting hole 705 are provided. The electrical control component 700 is installed on the rear plate 105 of the wire feeder housing assembly 100 through the mounting hole 705 using a hexagon socket bolt.

[0061] Pad 701 is a metal hole used to connect pins of component 707, via 702 is used to connect pins of component 707 between layers of circuit board, transformer 706 is used to adjust the voltage between circuit boards, and connector 704 is used to connect component 707 between circuit boards.

[0062] like Figure 7 As shown, the suspension assembly 200 includes a mounting back plate 201 , on which a threaded hole is formed. The mounting back plate 201 is connected to the adjustment assembly 300 via a hexagonal bolt.

[0063] The working principle and process are as follows:

[0064] The wire feeder is installed as a whole on the welding equipment through the suspension component 200, and the distance between the suspension component 200 and the wire feeder case component 100 can be adjusted through the adjustment component 300, so as to adjust the position of the wire feeder case, so that the wire feeding position can accurately reach the welding position; the specific process is that through the cooperation of the hinge 301 and the adjustment connector 302, the adjustment bolt 3024 on the link rod 3022 can be manually controlled to change the length of the adjustment bolt 3024 in the link rod 3022, so that the wire feeder case component 100 can be rotated at a small angle around the hinge 301 on the other side, so that the wire feeder case component 100 is in a suitable working position. Afterwards, the wire feeder is operated through the electrical control component 700, and the operation of the wire feeding component 500 drives the welding wire to move from the wire reel assembly 600 to the welding gun joint assembly 400, thereby realizing the welding operation. Through the cooperation of the wire feeding component 500 and the wire reel assembly 600, the welding wire can be transported smoothly and continuously, ensuring the stability and continuity of the wire feeding process. The setting of the wire feeder box assembly 100 can prevent flying debris from injuring the operator.

[0065] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hanging wire feeder, characterized in that: It includes a wire feeder housing assembly, a suspension assembly, two adjustment assemblies, a welding gun joint assembly, a wire feeder assembly, a welding wire reel assembly and an electrical control assembly; The upper end of the suspension assembly is detachably mounted on the welding equipment, and the lower end is mounted on the wire feeder housing assembly through an adjustment assembly; The adjustment component is connected between the suspension component and the wire feeder housing component to adjust the distance between the suspension component and the wire feeder housing; The welding gun joint assembly is arranged on one side of the wire feeder housing assembly, the welding wire reel assembly is arranged on the other side of the wire feeder housing assembly away from the welding gun joint assembly, the wire feeding assembly is arranged in the wire feeder housing assembly and is located between the welding wire reel assembly and the welding gun joint assembly, and the electrical control assembly is arranged on the wire feeder housing assembly; The welding gun joint assembly comprises a welding gun joint, an air guide tube, a fixed shaft and an aluminum plate, wherein the aluminum plate is fixed to the inner side wall of the wire feeder housing assembly, one end of the fixed shaft is provided with an external thread, a through wire feeding hole is provided at the axial position of the welding gun joint, the welding gun joint is in the shape of a hexagonal prism and has six sides, each side is provided with a threaded hole, one end of the fixed shaft provided with an external thread passes through the aluminum plate and is interference-connected with the aluminum plate, the side of the aluminum plate is fitted with the side of the welding gun joint, the fixed shaft is threadedly connected to one of the threaded holes of the welding gun joint through the external thread, a nut is sleeved on the air guide tube, and the nut is installed in another screw hole of the welding gun joint in cooperation with the air guide tube; The wire feeding assembly comprises a shell, a stepping reduction motor is arranged in the shell, the output shaft of the stepping reduction motor is drivingly connected with a driving wheel, two ends of the driving wheel are respectively rotatably arranged on two opposite inner side walls of the shell, a driven wheel is arranged above the driving wheel, vertical long holes are opened on the opposite inner side walls of the shell at positions corresponding to the driven wheels, two ends of the driven wheel are rotatably arranged in the long holes, a vertically arranged adjustable preload pressure rod is arranged at a position corresponding to the long hole at the top of the shell, the adjustable preload pressure rod comprises an upper rod and a lower rod, the upper rod is rotatably connected with the lower rod, a circle of external threads is arranged on the side of the upper rod, the lower rod of the adjustable preload pressure rod passes through the shell and extends into the long hole and is rotatably connected with the rotating shaft of the driven wheel, the upper rod of the adjustable preload pressure rod is connected to the top of the shell by threads, wire transmission holes for passing welding wire are opened at both ends of the shell, a wire feeding nozzle is arranged at the inlet end of the wire transmission hole, the wire transmission hole is coaxially arranged with the wire feeding hole, and the axis is located between the driving wheel and the driven wheel; The adjusting assembly includes a hinge and an adjusting connecting piece, one side of the suspension assembly is connected to the wire feeder case assembly by a hinge, and the other side opposite to the wire feeder case assembly is connected to the wire feeder case assembly by an adjusting connecting piece, the adjusting connecting piece includes a connecting plate, a linking rod, a front tensioning block, an adjusting bolt and a rear tensioning block, the connecting plate is arranged on the side of the wire feeder case assembly away from the hinge, the rear tensioning block is arranged on the side of the suspension assembly close to the connecting plate, the front tensioning block is arranged on the connecting plate, the linking rod is U-shaped, the front tensioning block and the rear tensioning block are both located in the U-shaped opening of the linking rod, the open end of the linking rod is hinged to the rear tensioning block, the free end of the linking rod is provided with a threaded hole along the center line, the threaded end of the adjusting bolt passes through the threaded hole from the outside to the inside and presses the front tensioning block.

2. A hanging wire feeder according to claim 1, characterized in that: The wire feeder case assembly is a rectangular structure, including a top plate and a bottom plate arranged in parallel, the top plate and the bottom plate have equal orthographic projection areas and are both rectangular, the four side edges of the top plate and the bottom plate are provided with a rear plate, a right side plate, a cover plate and a left side plate in a clockwise direction, adjacent plates among the rear plate, the right side plate, the cover plate and the left side plate are interconnected and are perpendicular to the plane where the top plate and the bottom plate are located, and two adjacent plates among the top plate, the bottom plate, the rear plate, the right side plate, the cover plate and the left side plate are connected by hexagonal bolts.

3. A hanging wire feeder according to claim 1, characterized in that: The welding wire reel assembly includes an intermediate disc, a fixed cylinder and a cylindrical welding wire reel. One end of the fixed cylinder is fixedly connected to the intermediate disc, and the other end of the fixed cylinder is sleeved with the cylindrical welding wire reel. The end of the fixed cylinder is provided with a fixed cylinder rear cover for limiting and clamping the cylindrical welding wire reel to prevent movement. The welding wire is evenly wound on the cylindrical welding wire reel. Four supporting angles are provided on the other side of the intermediate disc, and the intermediate disc is fixed to the inner wall of the wire feeder case assembly through the four supporting angles.

4. A hanging wire feeder according to claim 2, characterized in that: The inner side of the rear plate is provided with bottom engineering plastic, and the inner side of the cover plate is provided with top engineering plastic.

5. The hanging wire feeder according to claim 1, characterized in that: The electrical control component includes a welding pad, on which a transformer, a rectifier, components and connectors are arranged, and through holes and mounting holes are provided. The electrical control component is installed on the wire feeder housing component through the mounting holes using hexagon socket bolts.

6. A hanging wire feeder according to claim 1, characterized in that: The suspension assembly comprises a mounting back plate, a threaded hole is formed on the mounting back plate, and the mounting back plate is connected to the adjustment assembly via a hexagonal bolt.

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