Metal fitting welding device

Abstract

The invention relates to the technical field of metal welding, and provides a metal fitting welding device which comprises a machine body, a mechanical arm and a welding gun and further comprises a workbench, a clamping mechanism and a cooling mechanism, the clamping mechanism is used for adaptively clamping a workpiece and comprises a moving plate, a fixing cylinder and a clamping rod, the moving plate is movably arranged on the machine body, and the fixing cylinder is arranged on the moving plate; the fixed cylinder is fixedly connected to the movable plate and communicates with an air supply pipe, the clamping rod is slidably connected to the interior of the fixed cylinder, the cooling mechanism is used for cooling the clamping mechanism and comprises a cold water bin, a cold air pipe and air supply equipment, and the cold water bin is fixedly connected to the machine body and communicates with a water inlet pipe and a water outlet pipe; the air outlet end of the cold air pipe communicates with the fixed cylinder, and the air outlet of the air supply equipment communicates with the air inlet end of the cold air pipe. By means of the technical scheme, the problems that in the prior art, the welding quality is reduced due to deformation of the metal accessory and the clamping piece caused by welding heat are solved.

Description

Technical Field

[0001] The invention relates to the technical field of metal welding, and in particular to a metal fitting welding device. Background Art

[0002] Welding is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature or high pressure. It is widely used in metal accessories processing.

[0003] Welding uses high-temperature heating to join metals. During the welding process, the metal is deformed by the heat, which affects the stability of the metal accessories and affects the assembly and use of the metal accessories. Many metal accessories are irregular in shape, and different metal accessories are of different sizes. It is difficult to use a single clamping mechanism to adapt to the stable clamping of different welded parts, which can easily cause the metal accessories to deform during welding. At the same time, the clamping mechanism will also be deformed to a certain extent due to the influence of welding heat, which will have a certain impact on the clamping accuracy, thereby reducing the welding accuracy. Therefore, we propose a metal accessories welding device that can clamp metal accessories of different shapes and reduce the deformation of metal accessories caused by welding heat. Summary of the invention

[0004] The present invention provides a metal fitting welding device, which solves the problem in the related art that welding heat causes deformation of metal fittings and clamping parts, thereby reducing welding quality.

[0005] The technical solution of the present invention is as follows: A metal fitting welding device, comprising a body, a mechanical arm and a welding gun, and further comprising: A workbench, which can be raised and lowered on the machine body and is used to support a workpiece; A clamping mechanism, the clamping mechanism is used to adaptively clamp the workpiece, and the clamping mechanism comprises: A movable plate, wherein four movable plates are provided, and the movable plates are movably arranged on the machine body, and a movable groove for the movable plates to move is provided on the workbench; A fixed cylinder, the fixed cylinder is fixedly connected to the movable plate, and the fixed cylinder is connected to an air supply pipe; A clamping rod, the clamping rod is slidably connected to the interior of the fixing tube, the clamping rod is a hollow structure, and the clamping rod is connected to the fixing tube; A cooling mechanism, the cooling mechanism is used to cool the clamping mechanism, and the cooling mechanism includes: A cold water tank, the cold water tank is fixedly connected to the machine body, and the cold water tank is connected with a water inlet pipe and a water outlet pipe; A cold air pipe, the cold air pipe is spirally arranged inside the cold water bin, and the air outlet end of the cold air pipe is connected to the fixed cylinder; An air supply device, wherein the air outlet of the air supply device is connected to the air inlet end of the cold air pipe.

[0006] In order to clean the welding slag, a welding slag processing component is also included, and the welding slag processing component includes: A collecting frame, the collecting frame is fixedly connected to the top of the body; A telescopic protective cover connected between the collecting frame and the workbench; The workbench is provided with a plurality of slag dropping openings for the welding slag to drop.

[0007] In order to process the welding smoke, a welding smoke processing mechanism is also included. The welding smoke processing mechanism and the cooling mechanism cooperate to process the welding smoke. The welding smoke processing mechanism includes: A fume hood, the fume hood is fixedly connected to the outside of the welding gun; A purification component, which is used to process welding smoke, and includes: An adsorption box is connected to the air inlet of the air supply device, the adsorption box is connected to the smoking hood through an air intake pipe, and activated carbon is contained in the adsorption box.

[0008] In order to improve the treatment effect of welding smoke, a partition is fixedly connected to the inside of the adsorption box to divide the adsorption box into an adsorption chamber and a filter chamber. Water is contained in the adsorption chamber, and the end of the suction pipe extends below the water surface. A vent for welding smoke to pass through is arranged between the partition and the inner top wall of the adsorption box. A replacement port is provided on the adsorption box, and a replacement groove is slidably installed at the replacement port. A plurality of ventilation holes are provided at the bottom end of the replacement groove. The activated carbon is located inside the replacement groove, and the connecting position between the air inlet of the air supply equipment and the adsorption box is located below the replacement groove.

[0009] In order to realize the movement of the moving plate, a driving component is also included, and the driving component is used to drive the moving plate to move. The driving component includes: A lead screw, wherein four lead screws are provided, each of which corresponds to the movable plate one by one, and the lead screw is rotatably connected to the inside of the collection frame, the movable plate and the lead screw are threadedly connected, and four support plates are fixedly connected to the body, the support plates and the lead screws correspond one by one, and the lead screws are rotatably connected to the support plates.

[0010] In order to reduce the influence of debris on the cooperation between the lead screw and the movable plate, a telescopic sleeve is connected between the movable plate, the collecting frame and the support plate, and the lead screw is located inside the telescopic sleeve.

[0011] In order to reduce the splashing of welding slag, a retaining frame is fixedly connected to the top of the workbench.

[0012] In order to improve the treatment effect of debris and welding smoke, the cold air pipe is connected to the fixed cylinder through a connecting pipe, and a plurality of purge pipes are fixedly connected to the enclosure frame. The purge pipes pass through the enclosure frame and are connected to the cold air pipe.

[0013] In order to supplement and replace the water in the adsorption chamber, the adsorption chamber is connected with a drain pipe, the water outlet pipe is connected with a water adding pipe, the water adding pipe is located at the top of the adsorption box, and a valve is installed on the water adding pipe.

[0014] The working principle and beneficial effects of the present invention are: 1. In the present invention, the workpiece is placed on a workbench, and the workpiece is lifted and lowered by the workbench so that the clamping rod is at a suitable position for the workpiece. The movable plate is moved by the lead screw, and air is supplied to the interior of the fixed cylinder and the clamping rod by the air supply device to move the clamping rod. The clamping rod is pressed against the surface of the workpiece, and multiple clamping rods are freely extended and retracted under the action of the gas, so as to be suitable for clamping workpieces of different sizes and shapes.

[0015] 2. In the present invention, cold water is transported to the interior of the cold water bin through the water inlet pipe, and air is supplied to the interior of the cold air pipe through the air supply equipment. The cold water cools the gas in the cold air pipe, and the cold air enters the interior of the fixed cylinder and the clamping rod to cool the clamping rod, thereby reducing the impact of the high temperature of welding on the clamping rod. At the same time, the purge pipe blows cold air to the workpiece to cool the workpiece and reduce the high-temperature deformation of the workpiece.

[0016] 3. In the present invention, air is blown into the interior of the enclosure frame through a purge pipe, and the welding slag falls through the movable groove and the slag drop port to the bottom of the workbench for collection. The lead screw is protected by a telescopic sleeve to prevent the welding slag from falling on the lead screw and hindering the driving of the movable plate.

[0017] 4. In the present invention, air is sucked into the adsorption box and the fume hood through the air supply equipment, and the welding gun drives the fume hood to move, so that the welding smoke at the welding position is sucked into the interior of the adsorption box. The welding smoke first enters the water inside the adsorption chamber, and the water cools and adsorbs the welding smoke. Then the welding smoke enters the interior of the filter chamber, and is adsorbed and filtered by the activated carbon. The welding smoke enters the cold air pipe and enters the interior of the fixed cylinder to drive the clamping rod to clamp the workpiece.

[0018] 5. Therefore, compared with the metal accessories welding device in the prior art, the present invention drives the moving plate and the clamping rod to move through the lead screw, and the air supply equipment supplies air to the inside of the fixed cylinder and the clamping rod, pushing the clamping rod to close to the surface of the workpiece to limit it, and the sliding cooperation of the clamping rod and the fixed cylinder allows the clamping rod to move freely to adapt to the clamping of workpieces of different shapes and sizes. At the same time, the gas delivered by the air supply equipment is cooled by the cold water bin to ensure the low temperature environment of the fixed cylinder and the clamping rod and reduce their deformation caused by high temperature. Cold air is blown to the surface of the workpiece and the workbench through the purge pipe. While cooling the workpiece and the workbench, the welding slag is blown to the bottom of the workbench for collection. At the same time, the air supply equipment draws air to the exhaust hood to suck the welding smoke into the interior of the adsorption box. After the welding smoke is cooled, adsorbed and filtered and purified by water and activated carbon, air is supplied to the fixed cylinder to ensure the stable clamping of the clamping rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a structural schematic diagram of the present invention from a first viewing angle; Figure 2 It is a structural schematic diagram of the second viewing angle of the present invention; Figure 3 It is a structural schematic diagram of the clamping mechanism and the cooling mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the fixing tube and the clamping rod of the present invention; Figure 5 It is a schematic diagram of the structure of the clamping mechanism, the cold air pipe and the air supply equipment of the present invention; Figure 6 It is a schematic diagram of the structure of the cold water bin, the water inlet pipe and the water outlet pipe of the present invention; Figure 7 It is a schematic diagram of the structure of the workbench, the collection frame, the telescopic protective cover and the enclosure frame of the present invention; Figure 8 It is a schematic diagram of the structure of the cold water bin and purification components of the present invention.

[0021] In the figure: 1. Machine body; 2. Robotic arm; 3. Welding gun; 4. Workbench; 5. Electric cylinder; 6. Telescopic sleeve; 7. Purge pipe; 101, movable plate; 102, fixed cylinder; 103, clamping rod; 104, air supply pipe; 201, lead screw; 202, motor; 203, support plate; 301, cold water tank; 302, cold air pipe; 303, air supply equipment; 304, water inlet pipe; 305, water outlet pipe; 306, annular pipe; 401, collection frame; 402, telescopic protective cover; 403, enclosure frame; 501. Smoke hood; 502. Adsorption box; 503. Suction pipe; 504. Partition; 505. Replacement trough; 506. Drain pipe; 507. Water supply pipe. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figures 1 to 8 As shown, this embodiment proposes a metal fitting welding device, including a body 1, a robot arm 2 and a welding gun 3. The robot arm 2 is installed on the body 1, and the welding gun 3 is fixedly installed at the movable end of the robot arm 2. The robot arm 2 drives the welding gun 3 to perform multi-directional and multi-angle welding work. A visual system can be set on the robot arm 2 to judge the welding position. The welding of the robot arm 2 and the welding gun 3 are both existing technologies well known to those skilled in the art and will not be described in detail here. It also includes a workbench 4, a clamping mechanism and a cooling mechanism. Compared with the metal fitting welding device in the prior art, the present invention drives the moving plate 101 and the clamping rod 103 to move through the screw 201, and the gas supply device 303 supplies gas to the inside of the fixed cylinder 102 and the clamping rod 103, so as to push the clamping rod 103 to fit tightly against the surface of the workpiece. The surface is limited, and the clamping rod 103 is freely moved through the sliding cooperation between the clamping rod 103 and the fixed cylinder 102 to adapt to the clamping of workpieces of different shapes and sizes. At the same time, the gas transported by the gas supply equipment 303 is cooled by the cold water bin 301 to ensure the low temperature environment of the fixed cylinder 102 and the clamping rod 103 and reduce their deformation caused by high temperature. Cold air is blown to the surface of the workpiece and the workbench 4 through the purge pipe 7. While cooling the workpiece and the workbench 4, the welding slag is blown to the bottom of the workbench 4 for collection. At the same time, the gas supply equipment 303 draws air to the fume hood 501, and the welding smoke is sucked into the interior of the adsorption box 502. After the welding smoke is cooled, adsorbed and filtered by water and activated carbon, air is delivered to the fixed cylinder 102 to ensure the stable clamping of the clamping rod 103.

[0024] The workbench 4 can be raised and lowered on the machine body 1 to support the workpiece. An electric cylinder 5 is installed on the machine body 1. The workbench 4 is fixedly connected to the output end of the electric cylinder 5. The electric cylinder 5 can drive the workbench 4 to rise and fall. The workpiece is placed on the workbench 4 and the height of the workpiece is adjusted. Telescopic rods are connected between the four corners of the workbench 4 and the machine body 1 to adapt to the lifting and lowering of the workbench 4 and improve the stability of the workbench 4.

[0025] The clamping mechanism is used to adaptively clamp the workpiece, and the clamping mechanism includes a movable plate 101, a fixed cylinder 102 and a clamping rod 103. The movable plate 101 is provided with four to clamp the four sides of the workpiece. The movable plate 101 is movably arranged on the machine body 1, and a movable groove for the movable plate 101 to move is opened on the workbench 4. The fixed cylinder 102 is fixedly connected to the movable plate 101, and the fixed cylinder 102 is connected with an air supply pipe 104. The clamping rod 103 is slidably connected to the inside of the fixed cylinder 102. The clamping rod 103 is a hollow structure, and the clamping rod 103 is connected to the fixed cylinder 102. In order to realize the movement of the movable plate 101, a driving component is also included. The driving component is used to drive the movable plate 101 to move. The driving component includes a lead screw 201. Four lead screws 201 are provided. The lead screws 201 correspond to the movable plate 101 one by one. The lead screw 201 can be rotatably connected to the inside of the collection frame 401. Four motors 202 are installed on the machine body 1. The rod 201 corresponds to the motor 202 one by one, the lead screw 201 is fixedly connected to the output end of the motor 202, the moving plate 101 is threadedly connected to the lead screw 201, four support plates 203 are fixedly connected to the body 1, the support plates 203 correspond to the lead screw 201 one by one, the lead screw 201 and the support plates 203 are rotatably connected, the motor 202 can drive the lead screw 201 to rotate, drive the moving plate 101 to move along the moving groove, and drive the clamping rod 103 to move in a wide range. , the clamping rod 103 is brought close to the workpiece, and the gas is sent to the inside of the fixed cylinder 102 through the air supply pipe 104 and the air supply device 303. The pressure in the fixed cylinder 102 increases, which can push the clamping rod 103 to move, so that the clamping rod 103 and the workpiece are in close contact. The clamping rod 103 moves within a finer range to limit the workpiece. Under the action of air pressure, multiple clamping rods 103 and the corresponding positions of the workpiece are in close contact, so as to achieve the clamping of workpieces of different shapes and sizes.

[0026] The cooling mechanism is used to cool the clamping mechanism, and the cooling mechanism includes a cold water bin 301, a cold air pipe 302 and an air supply device 303. The cold water bin 301 is fixedly connected to the body 1, and the cold water bin 301 is connected with a water inlet pipe 304 and a water outlet pipe 305. The cold air pipe 302 is spirally arranged inside the cold water bin 301, and the air outlet end of the cold air pipe 302 is connected to the fixed cylinder 102, and the air outlet of the air supply device 303 is connected to the air inlet end of the cold air pipe 302. The air supply device 303 is such as a fan or a compressor. The air supply device 303 supplies air to the inside of the cold air pipe 302, connects the water inlet pipe 304 to a faucet or a refrigeration device, and delivers cold water to the inside of the cold water bin 301. The water inlet pipe 304 is connected to the bottom of the cold water bin 301, and the water outlet pipe 305 is connected to the top of the cold water bin 301, so that the cold water fills the cold water bin 301. When the gas enters the interior of the cold air pipe 302 and passes through the spiral cold air pipe 302, it fully contacts and exchanges heat with cold water to cool the gas, so that the gas is in a low temperature state when entering the fixed cylinder 102 and the clamping rod 103, reducing the thermal damage and deformation of the clamping rod 103 caused by the high temperature of welding. The cold air pipe 302 is connected to the annular pipe 306, and the air supply pipe 104 is connected to the annular pipe 306. The multiple fixed cylinders 102 on the same movable plate 101 are interconnected. The fixed cylinder 102 is connected to the air supply pipe 104 through a telescopic hose, so that cold air enters the interior of multiple fixed cylinders 102 at the same time. The air supply equipment 303 continuously supplies air to the interior of the fixed cylinder 102 to ensure that the air pressure inside the multiple fixed cylinders 102 is stable, avoid the movement of the clamping rod 103, and adapt to the movement of the movable plate 101 through the telescopic hose.

[0027] In order to clean the welding slag, it also includes a welding slag processing component, which includes a collecting frame 401 and a telescopic protective cover 402. The collecting frame 401 is fixedly connected to the top of the machine body 1, and the telescopic protective cover 402 is connected between the collecting frame 401 and the workbench 4. The workbench 4 is provided with a plurality of slag dropping openings for the welding slag to fall. In order to reduce the splashing of welding slag, the top of the workbench 4 is fixedly connected with a containment frame 403. In order to reduce the influence of debris on the cooperation between the lead screw 201 and the movable plate 101, a telescopic sleeve 6 is connected between the movable plate 101 and the collecting frame 401 and the supporting plate 203. The lead screw 201 is located inside the telescopic sleeve 6. The cold air pipe 302 is connected to the fixed cylinder 102 through a connecting pipe. A plurality of purge pipes 7 are fixedly connected to the containment frame 403. The purge pipe 7 passes through the containment frame 403, and the purge pipe 7 is connected to the cold air pipe 302 through a hose. The telescopic sleeve can adapt to the lifting and lowering of the workbench 4. The cold air part in the cold air pipe 302 enters the interior of the purge pipe 7 and blows cold air to the surface of the workbench 4. While the workpiece and the workbench 4 are cooled by air, the welding slag on the surface of the workpiece and the workbench 4 is blown off from the slag dropping port, and the welding slag is collected by the collecting frame 401 and the telescopic protective cover 402. A cleaning port is opened on the body 1, and a cleaning plate is detachably connected to the cleaning port. The cleaning plate can be opened regularly to clean out the welding slag in the collecting frame 401 for centralized treatment. The cold water tank 301 is located inside the collecting frame 401 and the telescopic protective cover 402, which can cool the bottom of the workbench 4 and reduce the thermal deformation of the workbench 4. The telescopic sleeve 6 can adapt to the movement of the movable plate 101, and at the same time, the lead screw 201 is protected to prevent the welding slag from falling on the surface of the lead screw 201 and affecting the drive of the movable plate 101.

[0028] In order to process the welding smoke, a welding smoke processing mechanism is also included. The welding smoke processing mechanism and the cooling mechanism cooperate to process the welding smoke. The welding smoke processing mechanism includes a fume hood 501 and a purification component. The fume hood 501 is fixedly connected to the outside of the welding gun 3. The purification component is used to process the welding smoke. The purification component includes an adsorption box 502. The adsorption box 502 is connected to the air inlet of the air supply device 303. The adsorption box 502 is connected to the fume hood 501 through an air suction pipe 503. The air suction pipe 503 is a hose that can adapt to the welding gun 3. The adsorption box 502 is provided with activated carbon inside to improve the treatment effect of welding smoke. The adsorption box 502 is fixedly connected with a partition 504 inside to separate the adsorption box 502 into an adsorption chamber and a filter chamber. The adsorption chamber is filled with water. The end of the suction pipe 503 extends below the water surface. A vent for welding smoke to pass through is provided between the partition 504 and the inner top wall of the adsorption box 502. The adsorption box 502 is provided with a replacement port, and a replacement slot 505 is slidably installed at the replacement port. A plurality of vent holes are provided at the bottom of the groove 505, the activated carbon is located inside the replacement groove 505, the air inlet of the gas supply device 303 and the connecting position of the adsorption box 502 are located below the replacement groove 505, the gas supply device 303 is used to suck air to the suction pipe 503 and the fume hood 501, the fume hood 501 moves with the welding gun 3, and the welding smoke formed at the welding position is sucked into the adsorption box 502, the welding smoke first enters the water in the adsorption chamber through the suction pipe 503, the water cools the welding smoke, and at the same time, the particulate smoke therein is removed. Adsorption is carried out, and then the welding smoke forms bubbles and rises, entering the interior of the filter chamber through the vent, and the welding smoke passes through the activated carbon, which adsorbs and filters the odor impurities in the welding smoke. The purified flue gas is sent to the interior of the cold air pipe 302 through the air supply equipment 303 for cooling, and then sent to the interior of the fixed cylinder 102 and the purge pipe 7 for clamping and purging. The replacement groove 505 is regularly removed from the interior of the adsorption box 502, and the activated carbon inside it can be replaced to ensure the adsorption performance of the activated carbon.

[0029] In order to replenish and replace the water in the adsorption chamber, the adsorption chamber is connected to a drain pipe 506, and the water outlet pipe 305 is connected to a water adding pipe 507. The water adding pipe 507 is located at the top of the adsorption box 502, and a valve is installed on the water adding pipe 507. The drain pipe 506 is located at the bottom of the adsorption chamber, and a valve is installed on the drain pipe 506. The valve is opened regularly to discharge the water and impurities in the adsorption chamber. At the same time, the valve on the water adding pipe 507 is opened to allow the cold water in the cold water tank 301 to flow into the interior of the adsorption chamber, thereby ensuring the adsorption and cooling effect of welding smoke.

[0030] The working principle or use process of the metal fitting welding device is as follows: The workpiece is placed on the surface of the workbench 4, and the height of the workbench 4 is adjusted according to the shape and height of the workpiece, so that the appropriate height position of the workpiece corresponds to the height of the clamping rod 103. The motor 202 drives the lead screw 201 to rotate, so that the movable plate 101 drives the clamping rod 103 to approach the workpiece, and the air supply device 303 supplies air to the inside of the fixed cylinder 102, so that the clamping rod 103 slides and closely adheres to the surface of the workpiece to clamp it; The robot arm 2 drives the welding gun 3 to weld the welding position of the workpiece. During the welding process, cold water is transported to the inside of the cold water tank 301, and the gas supply device 303 sends gas into the inside of the cold air pipe 302. The cold water cools the gas in the cold air pipe 302, thereby cooling the clamping rod 103. Part of the gas is blown to the workpiece through the purge pipe 7 to cool and purge the workpiece, and blow the welding slag to the bottom of the workbench 4; At the same time, the gas supply device 303 sucks air into the fume hood 501, sucks the welding smoke into the adsorption box 502, cools and adsorbs the welding smoke through cold water, and then adsorbs and filters the welding smoke through activated carbon. The purified and cooled gas enters the interior of the cold air pipe 302 and is sent to the inside of the purge pipe 7 and the fixed cylinder 102 for purge and cooling. After welding is completed, the motor 202 drives the lead screw 201 to reverse, so that the movable plate 101 is away from the workpiece, and the gas supply device 303 stops working, and the workpiece can be removed.

[0031] 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. A metal fitting welding device, comprising a body (1), a mechanical arm (2) and a welding gun (3), characterized in that: It also includes a workbench (4), a clamping mechanism and a cooling mechanism; The workbench (4) is movably arranged on the machine body (1) and is used to support the workpiece; The clamping mechanism is used to adaptively clamp the workpiece, and the clamping mechanism comprises: A movable plate (101), wherein four movable plates (101) are provided, and the movable plates (101) are movably arranged on the machine body (1), and a movable groove for the movable plates (101) to move is provided on the workbench (4); A fixed cylinder (102), the fixed cylinder (102) being fixedly connected to the movable plate (101), the fixed cylinder (102) being connected to an air supply pipe (104); a clamping rod (103), the clamping rod (103) being slidably connected to the interior of the fixing cylinder (102), the clamping rod (103) being a hollow structure, and the clamping rod (103) being in communication with the fixing cylinder (102); The cooling mechanism is used to cool the clamping mechanism, and the cooling mechanism includes: A cold water tank (301), the cold water tank (301) being fixedly connected to the machine body (1), and the cold water tank (301) being connected to a water inlet pipe (304) and a water outlet pipe (305); A cold air pipe (302), the cold air pipe (302) being arranged in a spiral shape inside the cold water bin (301), and an air outlet end of the cold air pipe (302) being connected to the fixed cylinder (102); An air supply device (303), wherein an air outlet of the air supply device (303) is connected to an air inlet end of the cold air pipe (302).

2. A metal fitting welding device according to claim 1, characterized in that: Also included is a welding slag treatment component, the welding slag treatment component comprising: A collecting frame (401), the collecting frame (401) being fixedly connected to the top of the machine body (1); A telescopic protective cover (402), the telescopic protective cover (402) being connected between the collecting frame (401) and the working table (4); The workbench (4) is provided with a plurality of slag dropping openings for the welding slag to drop.

3. A metal fitting welding device according to claim 2, characterized in that: It also includes a welding smoke processing mechanism, which cooperates with the cooling mechanism to process welding smoke, and the welding smoke processing mechanism includes: A fume hood (501), the fume hood (501) being fixedly connected to the outside of the welding gun (3); A purification component is used to process welding smoke.

4. A metal fitting welding device according to claim 3, characterized in that: The purification component comprises: An adsorption box (502), the adsorption box (502) is connected to the air inlet of the air supply device (303), the adsorption box (502) is connected to the smoking hood (501) through an air intake pipe (503), and activated carbon is contained inside the adsorption box (502).

5. A metal fitting welding device according to claim 4, characterized in that: A partition (504) is fixedly connected to the interior of the adsorption box (502) to separate the adsorption box (502) into an adsorption chamber and a filter chamber. Water is contained in the adsorption chamber, and the end of the air intake pipe (503) extends below the water surface. A vent for welding smoke to pass through is provided between the partition (504) and the inner top wall of the adsorption box (502). A replacement port is provided on the adsorption box (502), and a replacement groove (505) is slidably installed at the replacement port. A plurality of ventilation holes are provided at the bottom end of the replacement groove (505). The activated carbon is located inside the replacement groove (505), and the connection position between the air inlet of the air supply device (303) and the adsorption box (502) is located below the replacement groove (505).

6. A metal fitting welding device according to claim 5, characterized in that: It also includes a driving component, the driving component is used to drive the moving plate (101) to move, and the driving component includes: A lead screw (201), wherein four lead screws (201) are provided, wherein the lead screws (201) correspond one-to-one to the movable plate (101), wherein the lead screw (201) is rotatably connected to the inside of the collecting frame (401), wherein the movable plate (101) and the lead screw (201) are threadedly connected, and wherein four support plates (203) are fixedly connected to the body (1), wherein the support plates (203) correspond one-to-one to the lead screws (201), and wherein the lead screws (201) and the support plates (203) are rotatably connected.

7. A metal fitting welding device according to claim 6, characterized in that: A telescopic sleeve (6) is connected between the movable plate (101), the collecting frame (401), and the supporting plate (203), and the lead screw (201) is located inside the telescopic sleeve (6).

8. A metal fitting welding device according to claim 7, characterized in that: The top end of the workbench (4) is fixedly connected to a retaining frame (403).

9. A metal fitting welding device according to claim 8, characterized in that: The cold air pipe (302) is connected to the fixed cylinder (102) via a connecting pipe, a plurality of purge pipes (7) are fixedly connected to the enclosure frame (403), the purge pipes (7) pass through the enclosure frame (403), and the purge pipes (7) are connected to the cold air pipe (302).

10. A metal fitting welding device according to claim 9, characterized in that: The adsorption chamber is connected to a drainage pipe (506), the water outlet pipe (305) is connected to a water supply pipe (507), the water supply pipe (507) is located at the top of the adsorption box (502), and a valve is installed on the water supply pipe (507).

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