Surfacing device for thick wire gas metal arc welding

Abstract

The utility model discloses a thick wire gas metal arc welding surfacing device, which relates to the technical field of surfacing equipment and comprises a mounting seat, a vertical adjusting device is arranged at the upper end of the mounting seat, a transverse adjusting device is fixedly mounted on a moving part of the vertical adjusting device, a support is fixedly mounted on a moving part of the transverse adjusting device, and a movable part of the support is fixedly mounted on the bracket. A clamping base is fixedly installed at the upper end of the support, and a connecting block is connected to the upper end of the clamping base in an inserted mode. By the adoption of the structure, when the welding gun needs to be replaced, only the push blocks of the two connecting shells on the connecting block need to be directly and simultaneously extruded, the push blocks drive the clamping blocks connected with the limiting plates to be separated from the clamping holes, then the clamping blocks are directly pulled out of the inserting grooves upwards, and then the welding gun can be taken out of the clamping base. Therefore, the welding gun of the surfacing welding device can be quickly disassembled and assembled for use without any external auxiliary tool.

Description

Technical Field

[0001] The utility model belongs to the technical field of surfacing equipment, and particularly relates to a surfacing device for flux-cored arc welding with thick wires. Background Art

[0002] In the field of modern industrial welding, the surfacing device for flux-cored arc welding with thick wires has become an important branch of welding technology with its unique advantages. By using thick welding wires and gas protection technology, this device realizes an efficient, stable and high-quality welding process. With the rapid development of industrial production, the requirements for welding technology are also increasing day by day, especially the demands for welding efficiency, welding quality and environmental protection performance are more urgent. It uses thick welding wires as electrodes and, through gas protection technology, effectively prevents oxidation and pollution during the welding process, ensuring the quality and stability of the weld. At the same time, this device also has the characteristics of high welding efficiency, simple operation and wide application range, providing strong technical support for welding work in industrial production.

[0003] Chinese Patent with publication number CN202846001U discloses a surfacing device for flux-cored arc welding of small-diameter pipes, which includes a base, a welding torch, a hose and a gas shielded welding machine. The gas shielded welding machine is connected to the welding torch through the hose; a vertical lead screw with vertical spiral fine adjustment is installed on the upper part of the base, and a horizontal lead screw with horizontal spiral fine adjustment is installed on the side of the vertical spiral fine adjustment. The horizontal spiral fine adjustment is connected to an adjusting sleeve sleeved outside the welding torch through a connecting rod. An adjusting set screw is threadedly connected to the middle of this adjusting sleeve, and the front end of this adjusting set screw penetrates into the adjusting sleeve and is fixedly connected to the welding torch.

[0004] However, in the actual use process of the existing flux-cored arc welding surfacing device, we still found that there are still some deficiencies. For example, the welding torch is mainly directly fixed inside the adjusting sleeve by screws on the surfacing device. Of course, there are also some surfacing devices on the market where the welding torch is mainly clamped and fixed by screwing two semi-circular arc-shaped clamps during installation and use. However, the same is true that once the welding torch fails and needs to be disassembled and replaced, it often requires disassembly tools to disassemble it, and the operation is not very convenient. Summary of the Utility Model

[0005] Aiming at the problems mentioned in the background art, the purpose of the utility model is to provide a surfacing device for flux-cored arc welding with thick wires to solve the problems mentioned in the above background art.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] The thick wire MIG surfacing device includes a mounting base. A vertical adjustment device is provided at the upper end of the mounting base. A transverse adjustment device is fixedly installed on the moving part of the vertical adjustment device. A bracket is fixedly installed on the moving part of the transverse adjustment device. A clamp seat is fixedly installed at the upper end of the bracket. A connecting block is inserted into the upper end of the clamp seat. Slots are symmetrically opened at the upper end of the clamp seat. Card holes are symmetrically opened inside the slots. The lower end of the connecting block is clamped with the card holes through a connecting mechanism. A clamping mechanism is provided at the upper end of the connecting block. A welding torch is arranged between the connecting block and the clamp seat. A smoke exhaust mechanism is arranged at one end of the welding torch. A signal wire connection box is fixedly installed at the other end of the welding torch. A cable assembly is fixedly installed at one end of the welding torch close to the signal wire connection box. The other end of the cable assembly is fixedly installed with a connector. A wire feeding port and an air inlet interface are respectively arranged on the outer side of the connector;

[0008] The clamping mechanism includes clamping blocks. The upper ends of the clamping blocks are slidably connected to the inner side of the lower end of the connecting block. A screw rod is threadedly connected to the inner side of the upper end of the connecting block. A rotating handle is fixedly installed at the upper end of the screw rod. The lower end of the screw rod is rotatably connected to the upper end of the clamping block. A clamping groove is opened on the side of the clamping block facing the clamp seat;

[0009] The connecting mechanism includes a connecting shell. A mounting plate is fixedly installed on the outer side of the connecting shell. The mounting plate is fixedly installed with the end of the connecting block through screws. Limiting rods are symmetrically and fixedly installed inside the connecting shell. The same limiting plate is slidably connected to the outer sides of the limiting rods. Springs are sleeved on the ends of the limiting rods close to the limiting plate. A push block and a clamping block are respectively fixedly installed on the side of the limiting plate away from the spring. The inserting ends of the clamping block and one end of the push block both slidably penetrate through the wall of the connecting shell. The inserting end of the clamping block is clamped with the card hole;

[0010] The smoke exhaust mechanism includes a connecting socket. A tightening bolt is threadedly connected to the inside of the connecting socket. A fixed pipe is inserted into the inside of the connecting socket. The connecting socket is abutted against the fixed pipe through the tightening bolt. A pipe joint is fixedly installed at one end of the fixed pipe. A metal hose is fixedly installed at the end of the fixed pipe away from the pipe joint. A smoking hole is arranged at the end of the metal hose.

[0011] As a preferred technical solution, a screw sleeve is fixedly installed on the inner side of the upper end of the connecting block. One end of the screw rod threadedly penetrates through the screw sleeve and is rotatably connected to the clamping block. First limiting grooves are symmetrically opened on the outer side of the clamping block. The upper end of the clamping block is slidably connected to the inside of the connecting block through the first limiting grooves.

[0012] As a preferred technical solution, second limiting grooves are symmetrically formed inside the connecting shell, the end of the limiting plate is slidably connected inside the second limiting grooves, the connecting block is U-shaped, an assembly groove is formed at the end of the connecting block, and the mounting plate is fixedly installed inside the assembly groove by screws.

[0013] As a preferred technical solution, a groove is formed at the upper end of the slot, and the groove is arranged on one side of the clip seat close to the card hole.

[0014] As a preferred technical solution, a limiting ring is fixedly installed on the outer side of the welding torch, and the limiting rings are symmetrically distributed on the side of the clip seat.

[0015] As a preferred technical solution, a pipe clamp is fixedly installed on the outer side of the welding torch, and the pipe clamp is arranged on the side of the connecting socket.

[0016] In summary, the utility model mainly has the following beneficial effects:

[0017] First, after the welding torch is placed on the clip seat, when the connecting shell at the lower end of the connecting block is inserted into the slot at the upper end of the clip seat, during the insertion process, the clamping block on the outer side of the connecting shell contacts the slot, and under the extrusion effect, the limiting plate connected to the clamping block slides inside the connecting shell, and the limiting plate compresses the spring in the connecting shell. When the clamping block corresponds to the card hole on the inner wall of the slot, the spring resets and pushes the clamping block connected to the limiting plate to be able to snap into the card hole to achieve fixation. When the welding torch needs to be replaced, it only needs to directly squeeze the push blocks of the two connecting shells on the connecting block at the same time, so that the push blocks drive the clamping blocks connected to the limiting plate to separate from the card holes, and then directly pull it out upward from the slot, and then the welding torch can be taken out from the clip seat, so that the welding torch of the surfacing device can be quickly disassembled and assembled without any external auxiliary tools;

[0018] Second, on the basis of the installation of the connecting block and the clip seat, the rotating handle drives the screw to threadedly expand and contract on the connecting block, so that the lower end of the screw rotates to push the clamping block to slide at the lower end of the connecting block, so that the welding torch can be quickly clamped and fixed through the clamping groove at the lower end of the clamping block and in cooperation with the clip seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is the Figure 1 enlarged view of part A in the utility model;

[0021] Figure 3 is a schematic connection diagram of the connecting block and the clip seat of the utility model;

[0022] Figure 4 is a schematic structural diagram of the connecting mechanism of the utility model.

[0023] Reference numerals: 1, mounting base; 2, vertical adjustment device; 3, horizontal adjustment device; 4, bracket; 5, clamping seat; 6, connecting block; 7, signal wire junction box; 8, connector; 9, air inlet interface; 10, wire feeding port; 11, welding torch; 12, pipe clamp; 13, cable assembly; 14, limit ring; 15, smoke exhaust mechanism; 151, connecting sleeve seat; 152, pipe joint; 153, tightening bolt; 154, fixed pipe; 155, metal hose; 156, smoke suction hole; 16, clamping mechanism; 161, clamping groove; 162, clamping block; 163, rotating handle; 164, screw rod; 17, screw sleeve; 18, first limit groove; 19, connecting mechanism; 191, connecting shell; 192, spring; 193, pushing block; 194, locking block; 195, limit plate; 196, mounting plate; 197, limit rod; 20, locking hole; 21, slot; 22, groove; 23, second limit groove; 24, assembly groove. Detailed implementation manners

[0024] Reference Figures 1 to 4 Referring to, the surfacing device for flux-cored arc welding with thick wire of the present embodiment includes a mounting base 1. A vertical adjustment device 2 is provided at the upper end of the mounting base 1. A horizontal adjustment device 3 is fixedly installed on the moving part of the vertical adjustment device 2. A bracket 4 is fixedly installed on the moving part of the horizontal adjustment device 3. A clamping seat 5 is fixedly installed at the upper end of the bracket 4. A connecting block 6 is inserted into the upper end of the clamping seat 5. Slots 21 are symmetrically formed at the upper end of the clamping seat 5. Locking holes 20 are symmetrically formed inside the slots 21. The lower end of the connecting block 6 is clamped with the locking holes 20 through a connecting mechanism 19. A clamping mechanism 16 is provided at the upper end of the connecting block 6. A welding torch 11 is provided between the connecting block 6 and the clamping seat 5. A smoke exhaust mechanism 15 is provided at one end of the welding torch 11. A signal wire junction box 7 is fixedly installed at the other end of the welding torch 11. A cable assembly 13 is fixedly installed at one end of the welding torch 11 close to the signal wiring junction box. The other end of the cable assembly 13 is fixedly installed with a connector 8. A wire feeding port 10 and an air inlet interface 9 are respectively provided on the outer side of the connector 8; This welding torch 11 can refer to the flux-cored arc welding. The model of the Panasonic-type welding torch 11 assembly is YT-CAT353HAH. The wire feeding port 10 is used for the wire feeder to conduct thick wire feeding. The air inlet interface 9 is used for conveying protective gas in the welding area during the welding process. The signal wire junction box 7 is used for connecting the signal control circuit. In addition, both the horizontal adjustment device 3 and the vertical adjustment device 2 are mainly driven by a motor to drive a lead screw, and the moving block on the outer side of the lead screw slides to realize the adjustment of the surfacing position of the welding torch 11 on the workpiece. The cable assembly 13 for conveying gas and thick wire is also a known prior art product on the market;

[0025] The clamping mechanism 16 includes a clamping block 162. The upper end of the clamping block 162 is slidably connected to the inner side of the lower end of the connecting block 6. A screw rod 164 is threadedly connected to the inner side of the upper end of the connecting block 6. The upper end of the screw rod 164 is fixedly installed with a rotating handle 163. The lower end of the screw rod 164 is rotatably connected to the upper end of the clamping block 162. A clamping groove 161 is formed on one side of the clamping block 162 facing the clamping seat 5. After the welding torch 11 is placed on the clamping seat 5, on the basis of the installation of the connecting block 6 and the clamping seat 5, the rotating handle 163 is used to drive the screw rod 164 to threadedly expand and contract on the connecting block 6, so that the lower end of the screw rod 164 rotates to push the clamping block 162 to slide at the lower end of the connecting block 6. Thus, the welding torch 11 can be quickly clamped and fixed through the clamping groove 161 at the lower end of the clamping block 162 and in cooperation with the clamping seat 5; both the inner wall of the clamping groove 161 and the clamping seat 5 are provided with anti-friction and anti-slip structures to stably clamp the welding torch 11;

[0026] The connecting mechanism 19 includes a connecting shell 191. An installation plate 196 is fixedly installed on the outer side of the connecting shell 191. The installation plate 196 is fixedly installed at the end of the connecting block 6 through screws. Two limiting rods 197 are symmetrically and fixedly installed on the inner side of the connecting shell 191. The same limiting plate 195 is slidably connected to the outer sides of the limiting rods 197. A spring 192 is sleeved on one end of the limiting rod 197 close to the limiting plate 195. A pushing block 193 and a clamping block 194 are respectively fixedly installed on one side of the limiting plate 195 away from the spring 192. The inserting ends of the clamping block 194 and one end of the pushing block 193 both slidably penetrate through the wall of the connecting shell 191. The inserting end of the clamping block 194 is clamped with the clamping hole 20. After the welding torch 11 is placed on the clamping seat 5, after the connecting shell 191 at the lower end of the connecting block 6 is inserted into the slot 21 at the upper end of the clamping seat 5, during the inserting process, the clamping block 194 on the outer side of the connecting shell 191 contacts the slot 21, and under the extrusion action, the limiting plate 195 connected to the clamping block 194 slides inside the connecting shell 191, and the spring 192 in the connecting shell 191 is compressed by the limiting plate 195. When the clamping block 194 corresponds to the clamping hole 20 on the inner wall of the slot 21, the spring 192 resets to push the clamping block 194 connected to the limiting plate 195 to be clamped into the clamping hole 20 to achieve fixation. When the welding torch 11 needs to be replaced, only the pushing blocks 193 of the two connecting shells 191 on the connecting block 6 need to be directly squeezed simultaneously, so that the pushing blocks 193 drive the clamping blocks 194 connected to the limiting plate 195 to be separated from the clamping hole 20, and then it can be directly pulled out upward from the slot 21, and then the welding torch 11 can be taken out from the clamping seat 5. Thus, the welding torch 11 of the surfacing device can be quickly disassembled and assembled without any external auxiliary tools;

[0027] The smoke exhaust mechanism 15 includes a connecting socket 151. A tightening bolt 153 is threadedly connected to the inner side of the connecting socket 151. A fixing pipe 154 is inserted into the inner side of the connecting socket 151. The connecting socket 151 is in contact with the fixing pipe 154 through the tightening bolt 153. A pipe joint 152 is fixedly installed at one end of the fixing pipe 154. A metal hose 155 is fixedly installed at the end of the fixing pipe 154 away from the pipe joint 152. A smoking hole 156 is provided at the end of the metal hose 155. During use, the input end pipe of the exhaust fan can be installed with the pipe joint 152 of the fixing pipe 154, and the fixing pipe 154 is installed at the position of the welding torch 11 near the gun neck through the connecting socket 151. During the welding process, the welding fumes generated during the surfacing process can be centrally sucked away through the smoking hole 156 at the metal hose 155 on the fixing pipe 154, and then discharged into the welding fume purification equipment through the output end of the exhaust fan. The welding fumes can be purified before being discharged, thereby avoiding environmental pollution caused by welding fumes during the surfacing process. Although not shown in some structure diagrams, the exhaust and purification effect can be achieved by connecting to relevant external equipment through the pipe joint 152.

[0028] Reference Figure 3 , a screw sleeve 17 is fixedly installed on the inner side of the upper end of the connecting block 6. One end of the screw rod 164 threadedly penetrates through the screw sleeve 17 and is rotatably connected to the clamping block 162. First limiting grooves 18 are symmetrically formed on the outer side of the clamping block 162. The upper end of the clamping block 162 is slidably connected to the inner side of the connecting block 6 through the first limiting grooves 18. By using the threaded expansion and contraction of one end of the screw rod 164 in the screw sleeve 17 of the connecting block 6, it is convenient for the screw rod 164 to rotate and push the clamping block 162 to slide on the connecting block 6 to clamp the welding torch 11. A rectangular groove suitable for the sliding of the clamping block 162 is also formed in the concave part of the U-shaped connecting block 6, and the upper end of the clamping block 162 is limited and slides in the rectangular groove through the first limiting grooves 18.

[0029] Reference Figure 4 , second limiting grooves 23 are symmetrically formed on the inner side of the connecting shell 191. The end of the limiting plate 195 is slidably connected to the inner side of the second limiting grooves 23. The connecting block 6 is U-shaped. An assembly groove 24 is formed at the end of the connecting block 6. The mounting plate 196 is fixedly installed in the assembly groove 24 by screws. By using the sliding of the limiting plate 195 at the second limiting grooves 23 of the connecting shell 191, it is convenient to limit the moving distance of the limiting plate 195, and it is convenient to disassemble the connecting block 6 and the clamping seat 5 through the push block 193. By using the assembly groove 24 at the end of the connecting block 6, it is convenient to connect and install with the mounting plate 196 on the connecting shell 191 for use.

[0030] Reference Figure 3, a groove 22 is formed at the upper end of the slot 21. The groove 22 is arranged on one side of the clamping seat 5 close to the card hole 20. By using the groove 22 formed at the upper end of the slot 21, it is convenient for the connection shell 191 with the push block 193 to be clamped with the card hole 20 of the slot 21 through the card block 194.

[0031] Reference Figure 1 , a limit ring 14 is fixedly installed on the outer side of the welding torch 11. The limit rings 14 are symmetrically distributed on the side of the clamping seat 5. By using the limit rings 14 on the welding torch 11, it is convenient to place the welding torch 11 in the clamping seat 5 for fixation according to the position of the limit rings 14 when installing the welding torch 11.

[0032] Reference Figure 1 , a pipe clamp 12 is fixedly installed on the outer side of the welding torch 11. The pipe clamp 12 is arranged on the side of the connecting sleeve seat 151. By using the pipe clamp 12 on the welding torch 11, the pipeline part can be clamped and fixed when accessing the smoke exhaust and purification pipeline; a high-temperature resistant layer is also provided outside the welding torch 11, so the high temperature generated by the welding of the welding torch 11 will not affect the use of the pipe clamp 12. In addition, the metal hose 155 connected to the fixed pipe 154 can be bent in a conformable manner according to the user's usage requirements, and its form is similar to the metal hose 155 on a table lamp.

[0033] Principle of use and advantages: Before use, the test piece to be welded needs to be fixed on the positioner, and the rotation speed of the positioner is adjusted to meet the process requirements. During use, according to the position of the surfacing of the workpiece, through the cooperation of the vertical adjustment device 2 and the horizontal adjustment device 3, the gun neck of the welding torch 11 is adjusted to an appropriate surfacing position. After preparation, welding can be started.

[0034] When fixing the welding torch 11 of the surfacing device, first place the welding torch 11 in the clamping seat 5, and then insert the connection shell 191 at the lower end of the connection block 6 into the slot 21 at the upper end of the clamping seat 5. During the insertion process, the card block 194 on the outer side of the connection shell 191 contacts the slot 21, and under the extrusion effect, the limit plate 195 connected to the card block 194 slides inside the connection shell 191, and the limit plate 195 compresses the spring 192 in the connection shell 191. When the card block 194 corresponds to the card hole 20 on the inner wall of the slot 21, the spring 192 resets and pushes the card block 194 connected to the limit plate 195 to be able to be stuck into the card hole 20 to achieve fixation. Subsequently, the screw rod 164 is driven by the rotary handle 163 to threadedly expand and contract on the connection block 6, so that the lower end of the screw rod 164 rotates to push the clamping block 162 to slide at the lower end of the connection block 6, thereby the welding torch 11 can be quickly clamped and fixed through the clamping groove 161 at the lower end of the clamping block 162 and in cooperation with the clamping seat 5.

[0035] When the welding torch 11 needs to be replaced, it only requires directly squeezing the push blocks 193 of the two connection shells 191 on the connection block 6 simultaneously, so that the push blocks 193 drive the latch blocks 194 connected to the limit plates 195 to separate from the card holes 20, and then directly pull it out upward from the slot 21, and then the welding torch 11 can be taken out from the clamping seat 5.

Claims

1. A thick wire metal arc welding cladding device, comprising a mounting base (1), characterized in that: The upper end of the mounting seat (1) is provided with a vertical adjustment device (2), the movable part of the vertical adjustment device (2) is fixedly provided with a lateral adjustment device (3), the movable part of the lateral adjustment device (3) is fixedly provided with a bracket (4), the upper end of the bracket (4) is fixedly provided with a clamping seat (5), the upper end of the clamping seat (5) is plugged with a connecting block (6), the upper end of the clamping seat (5) is symmetrically provided with a slot (21), the inner side of the slot (21) is symmetrically provided with a clamping hole (20), the lower end of the connecting block (6) is connected to the clamping seat (5) through a connecting mechanism (19) and the clamping hole (20), and the lower end of the connecting block (6) is connected to the clamping seat (5) through a connecting mechanism (19) and the clamping hole (20). 0) clamping, a clamping mechanism (16) is provided at the upper end of the connecting block (6), a welding gun (11) is provided between the connecting block (6) and the clamping seat (5), a fume exhaust mechanism (15) is provided at one end of the welding gun (11), a signal wire junction box (7) is fixedly installed at the other end of the welding gun (11), a cable assembly (13) is fixedly installed at one end of the welding gun (11) close to the signal wire junction box, a connector (8) is fixedly installed at the other end of the cable assembly (13), and a wire feeding port (10) and an air inlet interface (9) are respectively provided on the outer side of the connector (8); The clamping mechanism (16) comprises a clamping block (162), the upper end of the clamping block (162) is slidably connected to the inner side of the lower end of the connecting block (6), the inner side of the upper end of the connecting block (6) is threadedly connected with a screw rod (164), the upper end of the screw rod (164) is fixedly mounted with a rotary handle (163), the lower end of the screw rod (164) is rotatably connected to the upper end of the clamping block (162), and a clamping groove (161) is provided on one side of the clamping block (162) facing the clamping seat (5); The connecting mechanism (19) comprises a connecting shell (191), a mounting plate (196) is fixedly installed on the outer side of the connecting shell (191), the mounting plate (196) is fixedly installed by means of screws and the end of a connecting block (6), a limiting rod (197) is symmetrically fixedly installed on the inner side of the connecting shell (191), the outer side of the limiting rod (197) is slidably connected to the same limiting plate (195), one end of the limiting rod (197) close to the limiting plate (195) is sleeved with a spring (192), and a push block (193) and a clamping block (194) are respectively fixedly installed on the side of the limiting plate (195) away from the spring (192), the clamping end of the clamping block (194) and one end of the pushing block (193) both slide through the shell wall of the connecting shell (191), and the clamping end of the clamping block (194) is clamped with the clamping hole (20).

2. The thick wire metal arc welding cladding device according to claim 1 is characterized in that: A screw sleeve (17) is fixedly mounted on the inner side of the upper end of the connecting block (6); one end of the screw rod (164) is threadedly inserted through the screw sleeve (17) and the clamping block (162) for rotational connection; a first limiting groove (18) is symmetrically provided on the outer side of the clamping block (162); and the upper end of the clamping block (162) is slidably connected to the inner side of the connecting block (6) via the first limiting groove (18).

3. The thick wire metal arc welding cladding device according to claim 1, characterized in that: A second limiting groove (23) is symmetrically provided on the inner side of the connecting shell (191), and the end of the limiting plate (195) is slidably connected to the inner side of the second limiting groove (23). The connecting block (6) is in a U-shape, and an assembly groove (24) is provided on the end of the connecting block (6). The mounting plate (196) is fixedly mounted on the inner side of the assembly groove (24) by means of screws.

4. The thick wire metal arc welding cladding device according to claim 1, characterized in that: The upper end of the slot (21) is provided with a groove (22), and the groove (22) is arranged on a side of the clamping seat (5) close to the clamping hole (20).

5. The thick wire metal arc welding cladding device according to claim 1, characterized in that: A limiting ring (14) is fixedly mounted on the outer side of the welding gun (11), and the limiting ring (14) is symmetrically distributed on the side of the clamping seat (5).

6. The thick wire metal arc welding cladding device according to claim 1, characterized in that: The smoke exhaust mechanism (15) comprises a connecting sleeve (151), the inner side of which is threadedly connected with a clamping bolt (153), the inner side of which is plugged with a fixing pipe (154), the connecting sleeve (151) being in contact with the fixing pipe (154) via the clamping bolt (153), one end of the fixing pipe (154) being fixedly mounted with a pipe joint (152), the end of the fixing pipe (154) being away from the pipe joint (152) being fixedly mounted with a metal hose (155), the end of the metal hose (155) being provided with a smoking hole (156).

7. The thick wire metal arc welding cladding device according to claim 6, characterized in that: A pipe clamp (12) is fixedly mounted on the outer side of the welding gun (11), and the pipe clamp (12) is arranged on the side of the connecting sleeve (151).

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