Electric arc welding equipment for automobile part machining

Abstract

The invention relates to the technical field of electric arc welding equipment, and provides electric arc welding equipment for automobile part machining, which comprises a welding head seat, a tungsten electrode welding needle is detachably fixed at the bottom end of the welding head seat, and a gas spraying assembly for spraying protective gas is fixed at the top of the outer side of the welding head seat. The outer side of the welding head base is sleeved with a protection assembly for protecting the tungsten electrode welding needle. The mounting column is fixed at the top end of the welding head seat; by means of the technical scheme, the problems that in the prior art, electric arc welding equipment is not provided with an effective protection mechanism, a tungsten electrode welding needle is exposed outside for a long time and is prone to being impacted to be damaged in the idle or non-working state, an air injection pipeline is usually of a fixed structure, an air cut-off plugging mechanism is lacked, and the equipment is damaged are solved. The diameter of a welding wire guide pipe of an existing electric arc welding device is fixed, the welding wire guide pipe can only adapt to welding wires with one diameter, effective adjustment cannot be conducted according to different welding wire diameters, and the capacity of the welding wire guide pipe for adapting to complex workpieces or various types of welding wires is limited.

Description

Technical Field

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

[0002] With the rapid development of the automobile manufacturing industry, higher requirements are placed on the welding process of parts processing. Arc welding is one of the most commonly used welding methods in automobile parts manufacturing. Its welding quality, efficiency and stability directly affect the safety and reliability of vehicle assembly. Tungsten inert gas welding (TIG welding) has been widely used in the welding of precision automobile parts due to its high welding quality and applicability to a variety of metal materials.

[0003] However, there are still certain defects in the existing arc welding equipment. For example, most of the current welding equipment 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. At the same time, the jet pipe in the existing arc welding equipment is often a fixed structure, lacking a gas shut-off and sealing mechanism, resulting in the continuous leakage of protective gas (such as argon, helium or carbon dioxide) 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, which can only adapt to one diameter of welding wire and cannot be effectively adjusted according to different welding wire diameters, limiting 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 automobile parts, which solves the problem that the arc welding device 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 device is idle or not working. The jet pipeline is often a fixed structure and lacks a gas shut-off and sealing mechanism, which leads to the continuous leakage of the protective gas (such as argon, helium or carbon dioxide) after the equipment is shut down, which not only increases the operating cost but also poses a safety hazard. In addition, the diameter of the welding wire conduit of the existing arc welding equipment is fixed, and it can only adapt to welding wires 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.

[0005] The technical solution of the present invention is as follows: An arc welding device for processing automobile parts, comprising: A welding head seat, wherein a tungsten electrode welding needle is detachably fixed at the bottom end of the welding head seat, a jet assembly for spraying protective gas is fixed at the top of the outer side of the welding head seat, and a protective assembly for protecting the tungsten electrode welding needle is sleeved on the outer side of the welding head seat; A mounting column, the mounting column is fixed to the top of the welding head seat, a mounting plate is fixed to the outside of the mounting column, two cylinders for driving the protection assembly to rise and fall are symmetrically fixed to the mounting plate, an L-shaped mounting frame is fixed to the top of the mounting column, and a connecting flange is fixed to the top wall of the L-shaped mounting frame; A wire assembly is installed at the bottom of the L-shaped mounting frame, and is used to guide the movement of the welding wire. A driving wire assembly rotation angle adjustment assembly is installed at the front bottom of the L-shaped mounting frame, and a straightening assembly is installed at one end of the wire assembly.

[0006] Preferably, the welding head seat comprises a seat body, a mounting hole is provided 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; The side wall of the arc-shaped clamping plate is rotatably mounted with bolts; The bolt is threadedly connected and passes through the side wall of the seat body.

[0007] Preferably, the jet assembly comprises an annular tube, the annular tube is fixed to the top of the outer side of the welding head seat, a plurality of jet tubes are symmetrically fixedly connected to the outer side of the annular tube, and a connecting tube connected to an external protective gas tank is fixedly connected to the side wall of the annular tube; The air jet head at the bottom end of the air jet pipe faces the tungsten electrode welding needle position.

[0008] Preferably, the protection assembly comprises 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; The top of the connecting plate slides through the annular tube and is fixed with a same limiting plate, the connecting plate corresponds to the position of the jet tube, and a vent hole matching the jet tube is provided on the connecting plate; A groove is provided at the bottom of the protective shell corresponding to the position of the air injection pipe; 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.

[0009] 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.

[0010] Preferably, the wire assembly comprises 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; 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; The threaded sleeve is threadedly connected to the outer wall of the wire tube.

[0011] Preferably, a through groove connected to the slide groove is formed on the outer wall of the wire tube, and the connecting rod is slidably installed in the through groove.

[0012] Preferably, the angle adjustment assembly comprises a fan-shaped plate, the fan-shaped plate 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; A limiting column is slidably installed in the arc-shaped guide groove; 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; A rotating shaft is fixed to the rear side of the bottom of the rotating plate; 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 tube.

[0013] Preferably, an outer edge of the front wall of the fan-shaped plate is provided with a concave angle line.

[0014] Preferably, the straightening assembly comprises 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; A bidirectional screw is rotatably installed between the inner walls of the C-shaped plates; 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; The slider is slidably installed in the C-shaped plate; The mounting shaft of the straightening roller is rotatably connected to the side wall of the sliding block; The side wall of the installation frame is provided with a waist-shaped hole corresponding to the installation position of the installation shaft of the straightening roller.

[0015] The beneficial effects of the present invention are: 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 seat 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, which significantly improves the maintainability and work efficiency of the equipment.

[0016] 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 to prevent the tungsten electrode welding needle and the nozzle from accidentally colliding and causing damage in the 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 protection shell, the outlet of the nozzle pipe can be synchronously blocked to avoid waste of protective gas. At the same time, a plurality of nozzle pipes are evenly connected by an annular tube to ensure uniform spraying of protective gas (such as argon gas). The welding area is more fully protected, effectively avoiding contact between the welded metal and oxygen in the air, reducing welding defects, and improving welding quality.

[0017] 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 various 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 guiding direction of the welding wire 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

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a three-dimensional diagram of the external structure of the present invention in a non-working state; Figure 2 This is a three-dimensional diagram of the external structure of the present invention in working state; Figure 3 This is a three-dimensional diagram of the external structure of the welding head seat of the present invention; Figure 4 This is a three-dimensional diagram of the half-section structure of the welding head seat of the present invention; Figure 5 It is a three-dimensional diagram of the structure of the jetting assembly and the protection assembly of the present invention; Figure 6 A stereoscopic diagram of the external structure of the conductor assembly and the angle adjustment assembly of the present invention; Figure 7 This is a three-dimensional diagram of the angle adjustment component structure of the present invention; Figure 8 It is a three-dimensional diagram of the structure of the conductor assembly of the present invention; Fig. 9 It is a three-dimensional diagram of the straightening assembly structure of the present invention.

[0020] In the figure: 1, welding head seat; 101, seat body; 102, mounting hole; 103, arc clamping plate; 104, bolt; 2, tungsten electrode welding needle; 3, jet assembly; 31, annular tube; 32, jet tube; 33, connecting tube; 4, protection assembly; 41, protection 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 groove; 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. Fan 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. Sliding block; 137. Knob; 14. Waist-shaped hole. DETAILED DESCRIPTION

[0021] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0022] Example 1 like Figure 1~Figure 2 As shown, this embodiment proposes: An arc welding device for processing automobile parts, comprising: A welding head seat 1, a tungsten electrode welding needle 2 is detachably fixed at the bottom of the welding head seat 1, a jet assembly 3 for ejecting protective gas is fixed at the top of the outer side of the welding head seat 1, and a protective assembly 4 for protecting the tungsten electrode welding needle 2 is sleeved on the outer side of the welding head seat 1; A mounting column 5 is fixed on the top of the welding head seat 1. A mounting plate 6 is fixed on the outside of the 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 frame 8 is fixed on the top of the mounting column 5. A connecting flange 9 is fixed on the top wall of the L-shaped mounting frame 8. 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 provided 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.

[0023] In this embodiment, the welding head seat 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 arranged in the welding head seat 1, and the jet assembly 3 is used to spray out a 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 protection component 4 provided can protect the nozzle position of the tungsten electrode welding needle 2 and the jet component 3 when the device is not in use, so as to avoid the tungsten electrode welding needle 2 from being damaged by accidental collision, and improve the service life of the device. At the same time, the protection component 4 can also block the jet pipe of the jet component 3 when in use, so as to avoid accidental leakage of the protective gas when the device is not in use, causing waste of resources, and control the lifting and lowering of the protection component 4 by the provided cylinder 7 to control the working state of the protection component 4. The provided connecting flange 9 can conveniently connect the device with an external welding robot, and the provided wire component 11 is used to guide the welding wire. The external welding wire is guided to the welding position through the wire component 11 under the action of the wire feeding mechanism for welding operation. At the same time, the guide component 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 component 11 to meet different usage requirements. The provided straightening component 13 can straighten the welding wire entering the guide component 11 to avoid the welding wire bending and being unable to smoothly enter the guide component 11, thereby ensuring the normal progress of the welding work, and it can adapt to welding wires of different diameters.

[0024] Example 2 like Figure 3~Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes: 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, a 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 wall of the arc-shaped clamping plate 103; The bolt 104 is threadedly connected and passes through the side wall of the seat body 101 .

[0025] The jet assembly 3 includes an annular tube 31, which is fixed on the top of the outer side of the welding head seat 1, and a plurality of jet tubes 32 are symmetrically fixedly connected to the outer side of the annular tube 31, and a connecting tube 33 connected to an external protective gas tank is fixedly connected to the side wall of the annular tube 31; The air jet head at the bottom end of the air jet pipe 32 faces the position of the tungsten electrode welding needle 2.

[0026] The protection assembly 4 includes a protection shell 41, which is slidably sleeved on the outer side 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 of the connecting plate 42 slides through the annular tube 31 and is fixed with a stop plate 43. The connecting plate 42 corresponds to the position of the jet tube 32. The connecting plate 42 is provided with a vent hole 44 that matches the jet tube 32. A groove 45 is formed at the bottom of the protection shell 41 at a position corresponding to the injection pipe 32 .

[0027] 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 .

[0028] In this embodiment, the welding head seat 1 is used to install the tungsten electrode welding needle 2, and can also facilitate the disassembly and installation of the tungsten electrode welding needle 2. When installing the tungsten electrode welding needle 2, the tungsten electrode welding needle 2 is inserted into the installation hole 102 at the bottom of the seat body 101, and then the bolt 104 is rotated by the hexagonal wrench. During the rotation of the bolt 104, the arc clamping plate 103 is driven to abut against the outside of the tungsten electrode welding needle 2, and the installation of the tungsten electrode welding needle 2 is completed. At the same time, a wire is arranged in the seat body 101, and one end of the wire extends to the installation hole 102, and the tungsten electrode welding needle 2 can be connected thereto during installation.

[0029] The jet assembly 3 is used to spray out the protective gas, which can isolate the welding area and prevent the metal in the welding area from contacting with oxygen in the air, thereby preventing oxidation. When the jet assembly 3 is working, the protective gas in the external protective gas tank enters the annular tube 31 through the connecting pipe 33, and is sprayed to the welding area through the jet pipe 32 to achieve welding protection.

[0030] The protection component 4 provided can protect the tungsten electrode welding needle 2 and the nozzle position of the jet component 3 when the device is not in use, so as to prevent the tungsten electrode welding needle 2 from being damaged by accidental collision, thereby increasing the service life of the device. At the same time, the protection component 4 can also block the jet pipe of the jet component 3 when in use, thereby preventing the accidental leakage of the protective gas when the device is not in use, causing waste of resources. When the device is not in use, the cylinder 7 is controlled to extend, and the cylinder 7 drives the protective shell 41 to move 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 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 position between the annular pipe 31 and the jet pipe 32, thereby preventing the protective gas from accidentally leaking when the device is not in use.

[0031] Example 3 like Figure 6~Figure 8 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes: A mounting groove 10 is formed at the bottom of the L-shaped mounting frame 8 , and a wire assembly 11 is rotatably mounted in the mounting groove 10 .

[0032] The wire assembly 11 includes a wire tube 111, which is rotatably installed in the installation groove 10. The inner wall of the wire tube 111 is symmetrically provided with slide grooves, and the slide grooves are slidably installed with adjustment blocks 112. Two installation rings 113 are slidably installed on the outer side of the wire tube 111. A connecting rod 114 is rotatably mounted between the inner wall of the mounting ring 113 and the side wall of the adjusting block 112, and a threaded sleeve 115 is rotatably mounted on one side of the mounting ring 113; The threaded sleeve 115 is threadedly connected to the outer wall of the wire tube 111 .

[0033] A through slot 116 communicating with the slide slot is formed on the outer wall of the wire tube 111 , and the connecting rod 114 is slidably installed in the through slot 116 .

[0034] The angle adjustment assembly 12 includes a fan-shaped plate 121, which is fixed to the front side of the bottom of the L-shaped mounting frame 8 through a connecting frame 122, and an arc-shaped guide groove 126 is formed on the fan-shaped plate 121; The 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 through a bearing and is fixedly connected to the side wall of the wire tube 111 .

[0035] An outer edge of the front wall of the sector plate 121 is provided with a concave angle line 127 .

[0036] 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; 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 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 slide block 136; 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 .

[0037] In this embodiment, the wire assembly 11 is used 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 the wire assembly 11 needs to be adjusted to adapt to 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 the opposite direction 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 ring 113, the adjusting block 112 is driven to move through the connecting rod 114, so that the adjusting block 112 moves inside or outside the wire tube 111 to change the inner diameter of the wire tube 111, thereby achieving the matching of welding wires of different diameters.

[0038] The angle adjustment component 12 is used to adjust the deflection of the guide component 11 to meet different usage requirements. When the deflection angle of the wire component 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 component 11 can be smoothly rotated. During the rotation process, the deflection angle is determined by the angle line 127 set on the sector plate 121 ( Figure 6 When the middle limit post 123 points to 90°, the wire assembly 11 is inclined at 45°, and 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 a suitable position, the nut is rotated in the reverse direction to make the nut abut against the side wall of the fan-shaped plate 121 again, thereby completing the position fixation of the guide assembly 11 after adjustment.

[0039] The straightening assembly 13 can straighten the welding wire entering the guide assembly 11, so as to prevent the welding wire from bending and failing to smoothly enter the guide assembly 11, thereby ensuring the normal welding work and being able to adapt to welding wires of different diameters. When welding wires of different diameters need to be straightened, the knob 137 is turned, and the knob 137 drives the bidirectional screw 135 to rotate. During the rotation of the bidirectional screw 135, the slider 136 is driven to move toward or in the opposite direction. During the movement of the slider 136, the two straightening rollers 133 are driven to move, so that the gap between the two straightening rollers 133 can adapt to the welding wire of the current diameter, and the welding wire is fed into the straightening assembly 13 by the external wire feeding mechanism.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc welding device for automobile parts processing, characterized in that: include: A welding head seat (1), wherein a tungsten electrode welding needle (2) is detachably fixed at the bottom end of the welding head seat (1), a jet assembly (3) for ejecting protective gas is fixed at the top of the outer side of the welding head seat (1), and a protective assembly (4) for protecting the tungsten electrode welding needle (2) is sleeved on the outer side 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 to 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 at 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 at the front side of the bottom of the L-shaped mounting frame (8), and a straightening assembly (13) being mounted at one end of the wire assembly (11).

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 wall 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 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).

4. The arc welding equipment for automobile parts processing according to claim 3, characterized in that: The protection assembly (4) comprises a protection shell (41), the protection shell (41) being slidably sleeved on the outer side of the welding head seat (1), and a plurality of connecting plates (42) being 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 connecting plate (42) corresponds to the position of the air injection tube (32); and a vent hole (44) matching the air injection tube (32) is provided on the connecting plate (42); A groove (45) is provided at the bottom end of the protective shell (41) at a position corresponding to the 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).

5. 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).

6. The arc welding equipment for automobile parts processing according to claim 5, characterized in that: The wire assembly (11) comprises a wire tube (111), the wire tube (111) is rotatably mounted in the mounting groove (10), the inner wall of the wire tube (111) is symmetrically provided with slide grooves, the slide grooves are slidably mounted with adjustment blocks (112), and the outer side of the wire tube (111) is slidably mounted with two mounting rings (113); A connecting rod (114) is rotatably mounted between the inner wall of the mounting ring (113) and the side wall of the adjusting block (112), and a threaded sleeve (115) is rotatably mounted on one side of the mounting ring (113); The threaded sleeve (115) is threadedly connected to the outer wall of the wire tube (111).

7. The arc welding equipment for automobile parts processing according to claim 6, characterized in that: The outer wall of the wire tube (111) is provided with a through groove (116) connected to the slide groove, and the connecting rod (114) is slidably installed in the through groove (116).

8. The arc welding equipment for automobile parts processing according to claim 6, characterized in that: The angle adjustment assembly (12) comprises a fan-shaped plate (121), the fan-shaped plate (121) being 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) being 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).

9. The arc welding equipment for automobile parts processing according to claim 8, characterized in that: An outer edge of the front wall of the sector plate (121) is provided with an inwardly concave angle line (127).

10. The arc welding equipment for automobile parts processing according to claim 6, characterized in that: The straightening assembly (13) comprises 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); the top end of the bidirectional screw (135) passes through the top wall of the C-shaped plate (134) via 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 sliding block (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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