Arc welding equipment for automobile parts processing

Abstract

The present invention relates to the technical field of arc welding equipment, and proposes an arc welding equipment for processing automobile parts, comprising a welding head seat, a tungsten electrode welding needle being detachably fixed at the bottom end of the welding head seat, a jet assembly for ejecting shielding gas being fixed at the top outer side of the welding head seat, a protective assembly for protecting the tungsten electrode welding needle being sleeved on the outer side of the welding head seat; a mounting column, and the mounting column being fixed to the top end of the welding head seat; through the above technical scheme, the problems that the arc welding equipment in the prior art is not equipped with an effective protection mechanism, the tungsten electrode welding needle is exposed to the outside for a long time, and is easily damaged by impact when the equipment is idle or not working, the jet duct is often a fixed structure, lacks a gas shut-off and sealing mechanism, and there are also safety hazards; and the diameter of the welding wire conduit of the existing arc welding equipment is fixed, and it can only adapt to welding wire of one diameter, and cannot be effectively adjusted according to different welding wire diameters, which limits its ability to adapt to complex workpieces or multiple types of welding wires.

Description

Technical Field

[0001] The present invention relates to the technical field of arc welding equipment, and in particular to arc welding equipment for processing automobile parts. Background Art

[0002] The rapid development of the automotive manufacturing industry has placed higher demands on welding processes for component processing. Arc welding, one of the most commonly used welding methods in automotive component manufacturing, has a direct impact on the safety and reliability of vehicle assembly due to its quality, efficiency, and stability. Tungsten inert gas welding (TIG welding) has been widely used in the welding of precision automotive components due to its high welding quality and compatibility with a wide range of metal materials.

[0003] However, there are still certain defects in existing arc welding equipment. For example, most of the current welding equipment is not equipped with an effective protection mechanism, and the tungsten electrode welding needle is exposed to the outside for a long time. It is easy to be damaged by impact when the equipment is idle or not working. At the same time, the jet pipe in the existing arc welding equipment is often a fixed structure and lacks a gas shut-off and sealing mechanism, which causes the shielding gas (such as argon, helium or carbon dioxide) to continue to leak after the equipment is shut down, which not only increases the operating cost but also poses a safety hazard. In addition, the wire conduit of the existing arc welding equipment has a fixed diameter and can only adapt to welding wire of one diameter. It cannot be effectively adjusted according to different welding wire diameters, which limits its ability to adapt to complex workpieces or multiple types of welding wires. Summary of the Invention

[0004] The present invention proposes an arc welding device for processing automotive parts, which solves the problem that arc welding equipment in the related art is not equipped with an effective protection mechanism, the tungsten electrode welding needle is exposed to the outside for a long time, and is easily damaged by impact when the equipment is idle or not in operation. The air jet duct is often a fixed structure and lacks a gas shut-off and sealing mechanism, resulting in the possibility of continued leakage of shielding gas (such as argon, helium or carbon dioxide) after the equipment is shut down, which not only increases operating costs but also poses a safety hazard. In addition, the wire conduit of the existing arc welding equipment has a fixed diameter and can only accommodate welding wire of one diameter. It cannot be effectively adjusted according to different welding wire diameters, which limits its ability to adapt to complex workpieces or multiple types of welding wire.

[0005] The technical solutions of the present invention are as follows:

[0006] An arc welding device for processing automobile parts, comprising:

[0007] A welding head seat, wherein a tungsten electrode welding needle is detachably fixed to the bottom end of the welding head seat, an injection assembly for ejecting protective gas is fixed to the top outside the welding head seat, and a protective assembly for protecting the tungsten electrode welding needle is sleeved on the outside of the welding head seat;

[0008] A mounting column, the mounting column is fixed to the top of the welding head base, a mounting plate is fixed to the outside of the mounting column, two cylinders for driving the protective assembly to rise and fall are symmetrically fixed to the mounting plate, an L-shaped mounting bracket is fixed to the top of the mounting column, and a connecting flange is fixed to the top wall of the L-shaped mounting bracket;

[0009] A wire assembly is installed at the bottom of the L-shaped mounting frame. The wire assembly is used to guide the movement of the welding wire. A wire assembly for driving the wire assembly to rotate is installed on the front side of the bottom of the L-shaped mounting frame. A straightening assembly is installed at one end of the wire assembly.

[0010] Preferably, the welding head seat includes a seat body, a mounting hole is opened at the bottom end of the seat body, the tungsten electrode welding needle is inserted into the mounting hole, and an arc-shaped clamping plate is slidably embedded in the inner wall of the mounting hole;

[0011] The side wall of the arc-shaped splint is rotatably mounted with bolts;

[0012] The bolt is threadedly connected and passes through the side wall of the seat body.

[0013] Preferably, the jet assembly includes an annular tube, which is fixed to the top of the outer side of the welding head seat, and a plurality of jet pipes are symmetrically fixedly connected to the outer side of the annular tube, and a connecting pipe connected to an external protective gas tank is fixedly connected to the side wall of the annular tube;

[0014] The air jet head at the bottom end of the air jet tube faces the position of the tungsten electrode welding needle.

[0015] Preferably, the protection assembly includes a protection shell, the protection shell is slidably sleeved on the outer side of the welding head seat, and a plurality of connecting plates are symmetrically fixed to the top wall of the protection shell;

[0016] The top end of the connecting plate slides through the annular tube and is fixed with a same limiting plate. The position of the connecting plate corresponds to that of the air injection tube. The connecting plate is provided with an air vent that matches the air injection tube.

[0017] A groove is provided at the bottom of the protective shell corresponding to the position of the air injection pipe;

[0018] The movable end of the bottom of the cylinder slides through the mounting plate and is fixedly connected to the top wall of the limiting plate.

[0019] Preferably, a mounting groove is provided at the bottom of the L-shaped mounting frame, and the wire assembly is rotatably mounted in the mounting groove.

[0020] Preferably, the wire assembly includes a wire tube, the wire tube is rotatably installed in the installation groove, the inner wall of the wire tube is symmetrically provided with slide grooves, the slide grooves are slidably installed with adjustment blocks, and the outer side of the wire tube is slidably installed with two installation rings;

[0021] A connecting rod is rotatably mounted between the inner wall of the mounting ring and the side wall of the adjusting block, and a threaded sleeve is rotatably mounted on one side of the mounting ring;

[0022] The threaded sleeve is screwed onto the outer wall of the wire tube.

[0023] Preferably, a through groove communicating with the slide groove is provided on the outer wall of the wire tube, and the connecting rod is slidably installed in the through groove.

[0024] Preferably, the angle adjustment assembly includes a fan-shaped plate, which is fixed to the front side of the bottom of the L-shaped mounting frame through a connecting frame, and an arc-shaped guide groove is formed on the fan-shaped plate;

[0025] A limiting column is slidably installed in the arc-shaped guide groove;

[0026] A rotating plate is fixed to the rear end of the limiting column, and a nut is screwed to the front end of the limiting column;

[0027] A rotating shaft is fixed to the rear side of the bottom of the rotating plate;

[0028] The rotating shaft passes through the side wall of the L-shaped mounting frame through a bearing and is fixedly connected to the side wall of the wire pipe.

[0029] Preferably, an outer edge of the front wall of the fan-shaped plate is provided with a concave angle line.

[0030] Preferably, the straightening assembly includes a mounting frame, the mounting frame is fixed to one end of the wire tube through two symmetrically arranged brackets, two straightening rollers are rotatably mounted in the mounting frame, and a C-shaped plate is fixed to one side of the mounting frame;

[0031] A bidirectional screw is rotatably installed between the inner walls of the C-shaped plates;

[0032] Both ends of the bidirectional screw are screwed with sliders, and the top end of the bidirectional screw passes through the top wall of the C-shaped plate through a bearing and is fixed with a knob;

[0033] The slider is slidably installed in the C-shaped plate;

[0034] The mounting shaft of the straightening roller is rotatably connected to the side wall of the slider;

[0035] A waist-shaped hole is provided on the side wall of the installation frame corresponding to the installation position of the installation shaft of the straightening roller.

[0036] The beneficial effects of the present invention are:

[0037] 1. In the present invention, a mounting hole and an arc-shaped clamping plate combined with a bolt fixing structure are designed at the bottom of the welding head holder to ensure the stable installation of the tungsten electrode welding needle and make the disassembly and replacement process of the tungsten electrode welding needle more efficient and convenient, significantly improving the maintainability and work efficiency of the equipment.

[0038] 2. The present invention adopts a cylinder-driven lifting mechanism of the protection component. When the equipment is in a non-working state, the protection component can automatically move down to cover the welding area, preventing the tungsten electrode welding needle and the air nozzle from accidentally colliding and causing damage when the equipment is in a non-working state. This design effectively reduces the equipment failure rate and extends its service life. At the same time, during the downward movement of the protective shell, the air outlet of the air jet pipe can be synchronously blocked to avoid waste of protective gas. At the same time, the annular tube is used to evenly connect multiple air jet pipes to ensure uniform ejection of protective gas (such as argon). The welding area is more comprehensively protected, effectively preventing the weld metal from contacting with oxygen in the air, reducing welding defects, and improving welding quality.

[0039] 3. In the present invention, a slidable adjustment block is provided inside the wire assembly, and the adjustment block is driven to move by rotating the external threaded sleeve, so that the inner diameter of the wire tube can be adjusted according to welding wires of different diameters. It is widely applicable to welding operations of welding wires of multiple specifications. By providing a fan-shaped plate with an angle scale, a limit column and a rotating plate, the operator can quickly and accurately adjust the wire guiding direction to meet the welding requirements under complex working conditions, improve the adaptability and operating efficiency of the equipment, and the straightening assembly can straighten the welding wire entering the guide assembly to avoid bending of the welding wire and inability to smoothly enter the guide assembly, thereby ensuring the normal progress of the welding work. At the same time, it can adapt to welding wires of different diameters. At the same time, a connecting flange is provided on the top of the equipment, which can be conveniently integrated with a welding robot or other automated devices to meet the diversified integration requirements of modern welding systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Figure 1 This is a three-dimensional diagram of the external structure of the present invention in a non-working state;

[0042] Figure 2 This is a three-dimensional diagram of the external structure of the present invention in working state;

[0043] Figure 3 This is a three-dimensional diagram of the external structure of the welding head base of the present invention;

[0044] Figure 4 This is a three-dimensional diagram of the half-section structure of the welding head seat of the present invention;

[0045] Figure 5 A perspective view of the structure of the jet assembly and the protection assembly of the present invention;

[0046] Figure 6 A perspective view of the external structure of the conductor assembly and angle adjustment assembly of the present invention;

[0047] Figure 7 This is a three-dimensional diagram of the angle adjustment component structure of the present invention;

[0048] Figure 8 This is a three-dimensional diagram of the conductor assembly structure of the present invention;

[0049] Figure 9 This is a three-dimensional diagram of the straightening assembly structure of the present invention.

[0050] Figure: 1. Welding head base; 101. Base body; 102. Mounting hole; 103. Arc clamp; 104. Bolt; 2. Tungsten electrode welding needle; 3. Jet assembly; 31. Ring tube; 32. Jet tube; 33. Connecting tube; 4. Protective assembly; 41. Protective shell; 42. Connecting plate; 43. Limit plate; 44. Vent hole; 45. Groove; 5. Mounting column; 6. Mounting plate; 7. Cylinder; 8. L-shaped mounting bracket; 9. Connecting flange; 10. Mounting slot; 11. Wire assembly; 111. Wire tube; 11 2. Adjustment block; 113. Mounting ring; 114. Connecting rod; 115. Threaded sleeve; 116. Through slot; 12. Angle adjustment assembly; 121. Sector plate; 122. Connecting frame; 123. Limiting column; 124. Turn plate; 125. Rotating shaft; 126. Arc guide groove; 127. Angle line; 13. Straightening assembly; 131. Mounting frame; 132. Bracket; 133. Straightening roller; 134. C-type plate; 135. Bidirectional screw; 136. Slider; 137. Knob; 14. Waist-shaped hole. DETAILED DESCRIPTION

[0051] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0052] Example 1

[0053] like Figure 1~Figure 2 As shown, this embodiment proposes:

[0054] An arc welding device for processing automobile parts, comprising:

[0055] A welding head base 1, a tungsten electrode welding needle 2 is detachably fixed to the bottom of the welding head base 1, a jet assembly 3 for ejecting shielding gas is fixed to the top of the outer side of the welding head base 1, and a protective assembly 4 for protecting the tungsten electrode welding needle 2 is sleeved on the outer side of the welding head base 1;

[0056] Mounting column 5, mounting column 5 is fixed to the top of welding head base 1, and a mounting plate 6 is fixed to the outside of mounting column 5. Two cylinders 7 for driving the protective assembly 4 to rise and fall are symmetrically fixed on the mounting plate 6. An L-shaped mounting bracket 8 is fixed to the top of mounting column 5, and a connecting flange 9 is fixed to the top wall of L-shaped mounting bracket 8;

[0057] The wire assembly 11 is installed at the bottom of the L-shaped mounting frame 8. The wire assembly 11 is used to guide the movement of the welding wire. The front side of the bottom of the L-shaped mounting frame 8 is equipped with an angle adjustment assembly 12 for driving the wire assembly 11 to rotate. A straightening assembly 13 is installed at one end of the wire assembly 11.

[0058] In this embodiment, the welding head holder 1 is used to install the tungsten electrode welding needle 2, and can facilitate the disassembly and installation of the tungsten electrode welding needle 2. At the same time, a wire connected to the tungsten electrode welding needle 2 is provided in the welding head holder 1, and the jet assembly 3 is provided for spraying protective gas (argon, helium, carbon dioxide, etc.). The protective gas can isolate the welding area and prevent the metal in the welding area from contacting with oxygen in the air, thereby preventing oxidation. The provided protection component 4 can protect the nozzle position of the tungsten electrode welding needle 2 and the air jet component 3 when the device is not in use, thereby preventing the tungsten electrode welding needle 2 from being damaged by accidental collision and improving the service life of the device. At the same time, the protection component 4 can also block the air jet pipe of the air jet component 3 when in use, thereby preventing accidental leakage of the protective gas when the device is not in use, causing waste of resources. The lifting and lowering of the protection component 4 are controlled by the provided cylinder 7 to control the working state of the protection component 4. The provided connection flange 9 can conveniently connect the device to an external welding robot. The provided wire assembly 11 is used to guide the welding wire. The external welding wire is guided to the welding position through the wire assembly 11 under the action of the wire feeding mechanism for welding operation. At the same time, the guide assembly 11 can guide welding wires of different diameters and has a wide range of applications. The provided angle adjustment component 12 is used to adjust the deflection of the guide assembly 11 to meet different usage requirements. The provided straightening component 13 can straighten the welding wire entering the guide assembly 11 to prevent the welding wire from bending and failing to enter the guide assembly 11 smoothly, ensuring the normal progress of the welding work. At the same time, it can adapt to welding wires of different diameters.

[0059] Example 2

[0060] like Figures 3 to 5 As shown, based on the same concept as the above embodiment 1, this embodiment further proposes:

[0061] The welding head base 1 includes a base body 101, a mounting hole 102 is opened at the bottom end of the base body 101, the tungsten electrode welding needle 2 is inserted into the mounting hole 102, and an arc-shaped clamping plate 103 is slidably embedded in the inner wall of the mounting hole 102;

[0062] Bolts 104 are rotatably mounted on the side wall of the arc-shaped clamping plate 103;

[0063] The bolt 104 is threadedly connected through the side wall of the base body 101 .

[0064] The jet assembly 3 includes an annular tube 31, which is fixed to the top of the outer side of the welding head base 1. A plurality of jet tubes 32 are symmetrically fixedly connected to the outer side of the annular tube 31, and a connecting pipe 33 connected to the external protective gas tank is fixedly connected to the side wall of the annular tube 31.

[0065] The air injection head at the bottom end of the air injection tube 32 faces the position of the tungsten electrode welding needle 2.

[0066] The protection assembly 4 includes a protection shell 41, which is slidably mounted on the outside of the welding head base 1. A plurality of connecting plates 42 are symmetrically fixed to the top wall of the protection shell 41.

[0067] The top of the connecting plate 42 slides through the annular tube 31 and is fixed with a same limiting plate 43. The position of the connecting plate 42 corresponds to that of the air injection tube 32. The connecting plate 42 is provided with a vent hole 44 that cooperates with the air injection tube 32.

[0068] A groove 45 is formed at the bottom of the protective shell 41 at a position corresponding to the air injection pipe 32 .

[0069] The movable end at the bottom of the cylinder 7 slides through the mounting plate 6 and is fixedly connected to the top wall of the limiting plate 43 .

[0070] In this embodiment, the welding head base 1 is used to mount a tungsten electrode welding needle 2 and facilitates its removal and installation. To install the tungsten electrode welding needle 2, the tungsten electrode welding needle 2 is inserted into the mounting hole 102 at the bottom of the base 101. A bolt 104 is then rotated using an Allen wrench. This rotation of the bolt 104 causes the curved clamping plate 103 to abut against the exterior of the tungsten electrode welding needle 2, completing the installation of the tungsten electrode welding needle 2. A wire is also provided within the base 101, one end of which extends into the mounting hole 102, allowing the tungsten electrode welding needle 2 to be connected thereto during installation.

[0071] The jet assembly 3 is used to spray shielding gas, which isolates the weld zone, preventing the metal from coming into contact with oxygen in the air and thus preventing oxidation. When the jet assembly 3 is in operation, shielding gas from an external shielding gas tank enters the annular tube 31 through the connecting pipe 33 and is sprayed onto the weld zone through the jet pipe 32, providing welding protection.

[0072] The protective assembly 4 is configured to protect the tungsten electrode welding needle 2 and the nozzle position of the air jet assembly 3 when the device is not in use, thereby preventing the tungsten electrode welding needle 2 from being damaged by accidental collisions and increasing the service life of the device. At the same time, the protective assembly 4 can also block the air jet pipe of the air jet assembly 3 when in use, thereby preventing accidental leakage of the protective gas when the device is not in use, which would otherwise waste resources. When the device is not in use, the control cylinder 7 is extended, and the cylinder 7 drives the protective shell 41 downward through the limit plate 43. At this time, the protective shell 41 can cover the tungsten electrode welding needle 2 at the bottom and the nozzle position at the bottom of the air jet pipe 32, thereby playing a protective role. At the same time, the limit plate 43 causes the vent 44 on the connecting plate 42 to move downward. At this time, the connecting plate 42 will block the connection between the annular tube 31 and the air jet pipe 32, thereby preventing accidental leakage of the protective gas when the device is not in use.

[0073] Example 3

[0074] like Figures 6 to 8 As shown, based on the same concept as the above embodiment 1, this embodiment further proposes:

[0075] A mounting groove 10 is defined at the bottom of the L-shaped mounting bracket 8 , and a wire assembly 11 is rotatably mounted in the mounting groove 10 .

[0076] The wire assembly 11 includes a wire tube 111, which is rotatably mounted in the mounting groove 10. The inner wall of the wire tube 111 is symmetrically provided with slide grooves, in which adjustment blocks 112 are slidably mounted. Two mounting rings 113 are slidably mounted on the outer side of the wire tube 111.

[0077] A connecting rod 114 is rotatably mounted between the inner wall of the mounting ring 113 and the side wall of the adjustment block 112, and a threaded sleeve 115 is rotatably mounted on one side of the mounting ring 113;

[0078] The threaded sleeve 115 is screwed onto the outer wall of the wire tube 111 .

[0079] A through slot 116 communicating with the slide slot is defined on the outer wall of the wire tube 111 , and the connecting rod 114 is slidably mounted in the through slot 116 .

[0080] The angle adjustment assembly 12 includes a sector plate 121, which is fixed to the front side of the bottom of the L-shaped mounting frame 8 through a connecting frame 122. An arc-shaped guide groove 126 is formed on the sector plate 121.

[0081] The limiting post 123 is slidably installed in the arc guide groove 126;

[0082] A rotating plate 124 is fixed to the rear end of the limiting column 123, and a nut is screwed to the front end of the limiting column 123;

[0083] A rotating shaft 125 is fixed to the bottom rear side of the rotating plate 124;

[0084] The rotating shaft 125 passes through the side wall of the L-shaped mounting frame 8 through a bearing and is fixedly connected to the side wall of the wire tube 111.

[0085] An outer edge of the front wall of the sector plate 121 is provided with an inwardly concave angle line 127 .

[0086] The straightening assembly 13 includes a mounting frame 131, which is fixed to one end of the wire tube 111 through two symmetrically arranged brackets 132. Two straightening rollers 133 are rotatably mounted in the mounting frame 131, and a C-shaped plate 134 is fixed to one side of the mounting frame 131.

[0087] A bidirectional screw 135 is rotatably mounted between the inner walls of the C-shaped plate 134;

[0088] Both ends of the bidirectional screw 135 are screwed with sliders 136. The top of the bidirectional screw 135 passes through the top wall of the C-shaped plate 134 through a bearing and is fixed with a knob 137.

[0089] The slider 136 is slidably mounted in the C-shaped plate 134;

[0090] The mounting shaft of the straightening roller 133 is rotatably connected to the side wall of the slider 136;

[0091] A waist-shaped hole 14 is formed on the side wall of the mounting frame 131 corresponding to the mounting position of the mounting shaft of the straightening roller 133 .

[0092] In this embodiment, the wire assembly 11 is provided to guide the welding wire. The external welding wire is guided to the welding position by the wire assembly 11 under the action of the wire feeding mechanism for welding operation. At the same time, the guide assembly 11 can guide welding wires of different diameters, and its application range is wide. When it is necessary to adjust the wire assembly 11 to accommodate welding wires of different diameters, the threaded sleeves 115 on both sides are rotated so that the threaded sleeves 115 on both sides move toward or in opposite directions synchronously. During the movement of the threaded sleeves 115, the mounting rings 113 on both sides are driven to move. During the movement of the mounting rings 113, the adjustment block 112 is driven to move via the connecting rod 114, so that the adjustment block 112 moves toward the inside or outside of the wire tube 111 to change the inner diameter of the wire tube 111, thereby achieving the purpose of matching welding wires of different diameters.

[0093] The angle adjustment assembly 12 is used to adjust the deflection of the guide assembly 11 to meet different usage requirements. When the deflection angle of the wire assembly 11 needs to be adjusted, the nut is rotated so that the nut is separated from the side wall of the sector plate 121. At this time, the guide assembly 11 can be rotated smoothly. During the rotation process, the angle of deflection is determined by the angle line 127 set on the sector plate 121 ( Figure 6When the middle limit post 123 points to 90°, the wire assembly 11 is tilted at 45°. At the same time, the direction of the rotating plate 124 can also be set to be the same as the axial direction of the guide assembly 11). When the wire assembly 11 is rotated to the appropriate position, the nut is rotated in the opposite direction so that the nut is back in contact with the side wall of the fan-shaped plate 121, completing the position fixation of the guide assembly 11 after adjustment.

[0094] The straightening assembly 13 is configured to straighten the welding wire entering the guide assembly 11, preventing the wire from bending and preventing it from smoothly entering the guide assembly 11, ensuring normal welding. It is also capable of accommodating welding wires of different diameters. To straighten welding wires of different diameters, the knob 137 is rotated, which drives the bidirectional screw 135 to rotate. The rotation of the bidirectional screw 135 drives the slider 136 to move toward or in opposite directions. The movement of the slider 136 drives the two straightening rollers 133 to move, thereby adjusting the gap between the two straightening rollers 133 to accommodate the current diameter of the welding wire. The welding wire is then fed into the straightening assembly 13 by an external wire feeding mechanism.

[0095] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, 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. An arc welding device for processing automobile parts, characterized in that: include: A welding head seat (1), wherein a tungsten electrode welding needle (2) is detachably fixed to the bottom end of the welding head seat (1), a jet assembly (3) for ejecting protective gas is fixed to the top outside of the welding head seat (1), and a protective assembly (4) for protecting the tungsten electrode welding needle (2) is sleeved on the outside of the welding head seat (1); A mounting column (5), the mounting column (5) being fixed to the top of the welding head seat (1), a mounting plate (6) being fixed to the outside of the mounting column (5), two cylinders (7) for driving the protective assembly (4) to rise and fall being symmetrically fixed on the mounting plate (6), an L-shaped mounting frame (8) being fixed to the top of the mounting column (5), and a connecting flange (9) being fixed to the top wall of the L-shaped mounting frame (8); A wire assembly (11), the wire assembly (11) being mounted on the bottom of the L-shaped mounting frame (8), the wire assembly (11) being used to guide the movement of the welding wire, a rotation angle adjustment assembly (12) being mounted on the front side of the bottom of the L-shaped mounting frame (8), and a straightening assembly (13) being mounted on one end of the wire assembly (11); The jet assembly (3) comprises an annular tube (31), the annular tube (31) being fixed to the top of the outer side of the welding head seat (1), a plurality of jet tubes (32) being symmetrically fixedly connected to the outer side of the annular tube (31), and a connecting tube (33) connected to an external protective gas tank being fixedly connected to the side wall of the annular tube (31); The air jet head at the bottom end of the air jet tube (32) faces the position of the tungsten electrode welding needle (2); The protection assembly (4) comprises a protection shell (41), the protection shell (41) is slidably sleeved on the outside of the welding head seat (1), and a plurality of connecting plates (42) are symmetrically fixed to the top wall of the protection shell (41); The top end of the connecting plate (42) slides through the annular tube (31) and is fixed with a same limiting plate (43). The position of the connecting plate (42) corresponds to that of the air injection tube (32). The connecting plate (42) is provided with an air vent (44) that matches the air injection tube (32). A groove (45) is provided at the bottom end of the protective shell (41) at a position corresponding to the air injection pipe (32); The movable end at the bottom of the cylinder (7) slides through the mounting plate (6) and is fixedly connected to the top wall of the limiting plate (43).

2. The arc welding equipment for automobile parts processing according to claim 1, characterized in that: The welding head seat (1) comprises a seat body (101), a mounting hole (102) is provided at the bottom end of the seat body (101), the tungsten electrode welding needle (2) is inserted into the mounting hole (102), and an arc-shaped clamping plate (103) is slidably embedded in the inner wall of the mounting hole (102); Bolts (104) are rotatably mounted on the side walls of the arc-shaped clamping plate (103); The bolt (104) is threadedly connected and passes through the side wall of the seat body (101).

3. The arc welding equipment for automobile parts processing according to claim 1, characterized in that: The bottom of the L-shaped mounting frame (8) is provided with a mounting groove (10), and the wire assembly (11) is rotatably mounted in the mounting groove (10).

4. The arc welding equipment for automobile parts processing according to claim 3, characterized in that: The wire assembly (11) includes a wire tube (111), the wire tube (111) is rotatably installed in the installation groove (10), the inner wall of the wire tube (111) is symmetrically provided with sliding grooves, and the sliding grooves are slidably installed with adjustment blocks (112), and the outer side of the wire tube (111) is slidably installed with two installation rings (113); A connecting rod (114) is rotatably mounted between the inner wall of the mounting ring (113) and the side wall of the regulating block (112), and a threaded sleeve (115) is rotatably mounted on one side of the mounting ring (113); The threaded sleeve (115) is screwed onto the outer wall of the wire tube (111).

5. The arc welding equipment for automobile parts processing according to claim 4, characterized in that: A through groove (116) communicating with the slide groove is provided on the outer wall of the wire tube (111), and the connecting rod (114) is slidably installed in the through groove (116).

6. The arc welding equipment for automobile parts processing according to claim 5, characterized in that: The angle adjustment assembly (12) includes a fan-shaped plate (121), the fan-shaped plate (121) is fixed to the front side of the bottom of the L-shaped mounting frame (8) via a connecting frame (122), and an arc-shaped guide groove (126) is formed on the fan-shaped plate (121); A limiting column (123) is slidably installed in the arc-shaped guide groove (126); A rotating plate (124) is fixed to the rear end of the limiting column (123), and a nut is screwed to the front end of the limiting column (123); A rotating shaft (125) is fixed to the rear side of the bottom of the rotating plate (124); The rotating shaft (125) passes through the side wall of the L-shaped mounting frame (8) via a bearing and is fixedly connected to the side wall of the wire tube (111).

7. The arc welding equipment for automobile parts processing according to claim 6, characterized in that: An outer edge of the front wall of the sector plate (121) is provided with an inwardly concave angle line (127).

8. The arc welding equipment for automobile parts processing according to claim 4, characterized in that: The straightening assembly (13) includes a mounting frame (131), the mounting frame (131) being fixed to one end of the wire tube (111) via two symmetrically arranged brackets (132), two straightening rollers (133) being rotatably mounted in the mounting frame (131), and a C-shaped plate (134) being fixed to one side of the mounting frame (131); A bidirectional screw (135) is rotatably mounted between the inner walls of the C-shaped plate (134); Both ends of the bidirectional screw (135) are screwed with sliders (136), and the top end of the bidirectional screw (135) passes through the top wall of the C-shaped plate (134) through a bearing and is fixed with a knob (137); The slider (136) is slidably mounted in the C-shaped plate (134); The mounting shaft of the straightening roller (133) is rotatably connected to the side wall of the slider (136); A waist-shaped hole (14) is provided on the side wall of the installation frame (131) at a position corresponding to the installation shaft of the straightening roller (133).

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