A steel structure welding auxiliary equipment

Abstract

The invention discloses a steel structure welding auxiliary equipment, comprising a welding mechanical arm, wherein a fume purification mechanism is arranged on the top of the welding mechanical arm, wherein the fume purification mechanism comprises a fume deflector, wherein a micro air pump is installed at one end of the fume deflector, wherein one end of the micro air pump is connected to a gas transmission pipeline, wherein a fume purification component is arranged at one end of the gas transmission pipeline away from the micro air pump, wherein the fume purification mechanism extracts welding fume through the deflector, the air pump and the gas transmission pipeline and transmits the welding fume to a heat exchange box and a gas decomposition tank, wherein the high-temperature welding fume is rapidly cooled in the heat exchange box and then transmitted to the gas decomposition tank through an exhaust pipe, wherein the cooled welding fume blows an impeller to rotate and drives a transmission gear, wherein the gear is meshed with a trapezoidal base block, thereby driving a conductive bump on a circuit connector to contact, thereby triggering an electric sprayer and a warning light to be powered on and operated, wherein the electric sprayer sprays purification liquid in a powered-on state to decompose and neutralize the welding fume.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure welding auxiliary technology, in particular to steel structure welding auxiliary equipment. Background Art

[0002] Steel structure welding is the process of connecting steel components into an integral structure through welding technology. Through welding, steel beams, steel columns, steel plates and other components can be tightly connected together to construct steel structure projects such as buildings, bridges, and towers. During the welding process, high-temperature heat sources such as arcs, lasers, and electron beams are used to partially melt the steel and form a strong joint after cooling. Steel structure welding has become a widely used connection method in modern construction and industrial fields due to its advantages such as high connection strength, good sealing, and adaptability to complex structures.

[0003] There are some problems in the use of steel structure welding equipment currently on the market. For example, during welding and assembly, due to the effect of high-temperature heat sources such as electric arcs or lasers, the temperature of the welding area will rise, causing the volatilization of welding materials and coatings, and generating welding fumes. This fume contains fine metal particles and toxic and harmful gaseous substances. Direct discharge into the air will harm the health of welders, such as causing respiratory diseases such as coughing, asthma, and bronchitis. In addition, welding fumes directly discharged into the air will also affect air quality and pollute the environment. However, when using existing steel structure welding equipment, it is impossible to effectively decompose and neutralize welding fumes, and it is also impossible to troubleshoot blockages in heat exchange pipes used for welding fume transportation and cooling. Therefore, the existing equipment has certain limitations when in use and cannot ensure the safe treatment of welding fumes and the normal operation of the equipment.

[0004] Based on this, we propose a steel structure welding auxiliary equipment to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a steel structure welding auxiliary equipment to solve the problem that the welding equipment proposed in the above background technology causes the welding materials and coatings to volatilize due to high temperature during use, generating welding fumes containing metal particles and harmful gaseous substances, thereby affecting the health of workers and polluting the environment.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a steel structure welding auxiliary equipment, comprising a welding mechanical arm, a fume purification mechanism is arranged on the top of the welding mechanical arm, the fume purification mechanism comprises a fume deflector, a micro air pump is installed at one end of the fume deflector, one end of the micro air pump is connected to a gas pipeline, a fume purification component is arranged at one end of the gas pipeline away from the micro air pump, the fume purification component is arranged on the top of the welding mechanical arm, and a welding gun component is also connected to one end of the welding mechanical arm;

[0007] The welding gun assembly comprises a welding gun body, a connecting screw plate is installed in the middle of the welding gun body, and one end of the welding gun body is also connected to a fuel delivery pipe;

[0008] The welding gun body comprises a welding head and a gas nozzle for welding steel structures, wherein the welding head is mounted at one end of the welding gun body, and a gas nozzle is also connected to a side of the welding gun body close to the welding head;

[0009] The flue gas purification component includes a heat exchange box, a gas decomposition tank is installed at one end of the top of the heat exchange box, a return water tank is opened at the top of one end of the heat exchange box, an exhaust pipe is connected to the inside of the return water tank, a one-way valve is connected to the bottom of one end of the heat exchange box close to the return water tank, an exhaust hood is provided at the exhaust port of the exhaust pipe, an impeller is rotatably connected to the middle of the exhaust hood, transmission gears are respectively connected to both sides of the exhaust hood, two groups of the transmission gears and the impeller are all transmission connections, and contact switches are also respectively installed on both sides of the exhaust hood.

[0010] Based on the above technical features, the steel structure welding auxiliary equipment designed by the present invention is mainly composed of a welding robot arm and a fume purification mechanism, wherein the fume purification mechanism includes a fume deflector, a micro air pump, a gas pipeline and a fume purification component. The fume purification mechanism can extract the welding fume generated by steel structure welding and transport it to the heat exchange box and the gas decomposition tank through the combined design of the fume deflector, the micro air pump and the gas pipeline. When the high-temperature welding fume enters the spiral heat exchange tube of the heat exchange box, cold water is transported to the internal circulation of the heat exchange box through two sets of water pipes, and the high-temperature welding fume can be quickly cooled by heat exchange. The exhaust port of the spiral heat exchange tube is connected with the exhaust pipe, the water storage tank and the one-way valve. Therefore, the cooled welding fume can be transported to the inside of the gas decomposition tank through the exhaust pipe, and the liquefied water generated by the cooling of the high-temperature welding fume can be collected in the water storage tank and can be discharged to the outside in conjunction with the one-way valve.

[0011] Preferably, in the above-mentioned steel structure welding auxiliary equipment, both sides of the outside of the heat exchange box are connected to water delivery pipes, and a spiral heat exchange tube is arranged inside the heat exchange box. An installation cavity is opened at one end of the spiral heat exchange tube close to the gas pipeline, and a water storage tank is opened at one end of the spiral heat exchange tube away from the gas pipeline. A first water pumping pipe is connected to one side of the return water tank, and a pressure storage component is also installed inside the installation cavity.

[0012] Based on the above technical features, this solution installs a spiral heat exchange tube inside the heat exchange box. The spiral heat exchange tube is made of copper alloy material, has high thermal conductivity and excellent tensile strength. Such a design can significantly improve the heat exchange efficiency of high-temperature welding fume. At the same time, the high strength characteristics of the copper alloy material can effectively prevent the spiral heat exchange tube from being damaged by welding fume under continuous pressurization. In addition, when the pressure storage component instantly releases high-pressure gas, the pressure resistance of the copper alloy material can also ensure that the heat exchange tube is not easily damaged.

[0013] Preferably, in the above-mentioned steel structure welding auxiliary equipment, the gas decomposition tank includes a first tank body, a smoke filter element is installed on the top of the first tank body, the top of the smoke filter element is also connected to a second tank body, the top of the second tank body is connected to a discharge pipe, the outer side of the second tank body is connected to a second water pumping pipe, the middle part of the second water pumping pipe is connected to a micro water pump, and one end of the second water pumping pipe is also provided with a three-way valve.

[0014] Based on the above technical features, this solution installs a fume filter core on the top of the first tank body. The fume filter core adopts an activated carbon filter in the prior art, which can adsorb and filter metal particles and toxic and harmful substances in welding fume. The decomposition liquid in this solution can be sodium hydroxide solution, which can effectively decompose and neutralize various toxic and harmful substances in welding fume.

[0015] Preferably, in the above-mentioned steel structure welding auxiliary equipment, an annular through groove is opened inside the second tank body, an electric sprayer is installed on the side of the second tank body close to the annular through groove, a plurality of groups of atomizing nozzles are distributed in a circular array on the inner wall of the electric sprayer, and a warning light is also arranged on the external side of the second tank body away from the second water suction pipe, and the warning light, the electric sprayer and the contact switch are all electrically connected.

[0016] Based on the above technical features, this solution includes an electric sprayer and an atomizing nozzle installed inside the second tank body. The electric sprayer adopts the electric liquid spray device in the prior art. By installing multiple groups of electric liquid spray devices in series around the inside of the second tank body, when the multiple groups of electric liquid spray devices are powered on, the atomizing nozzle installed at the output end of each group of electric liquid spray devices can be used to spray the decomposition liquid around the inner wall of the second tank body at the same time.

[0017] Preferably, in the above-mentioned steel structure welding auxiliary equipment, a shielding cover is provided on the top of the first tank body, and liquid seepage slots are opened through the four sides of the shielding cover.

[0018] Based on the above technical features, this solution can guide the decomposition liquid dripping downwards by installing a shielding cover on the top of the first tank body, and can also shield the exhaust port of the exhaust hood to prevent the falling decomposition liquid from flowing into the exhaust pipe. In combination with the seepage grooves opened around the shielding cover, the decomposition liquid dripping downwards can be collected back into the return tank, thereby realizing the recycling of the decomposition liquid.

[0019] Preferably, in the above-mentioned steel structure welding auxiliary equipment, the contact switch includes a circuit connector, a trapezoidal base block is provided at one end of the circuit connector, the trapezoidal base block matches the transmission gear structure, the trapezoidal base block and the transmission gear are meshedly connected, and elastic reset rods are respectively provided between the trapezoidal base block and both sides of the circuit connector.

[0020] Based on the above technical features, when the welding fume after cooling is discharged outward from the exhaust hood of the exhaust pipe, the impeller connected to the middle of the exhaust hood can be blown, and the impeller in the rotating state can drive the transmission gears installed on both sides to rotate synchronously. Through the structural design of the meshing connection between the transmission gear and the trapezoidal base block, the transmission gear in the rotating state can play a role of toggling the trapezoidal base block slidingly connected to one side of the circuit connector. In conjunction with the elastic reset rod installed between the trapezoidal base block and the two sides of the circuit connector, it can also play a role of elastic reset of the toggle-adjusted trapezoidal base block.

[0021] Preferably, in the above-mentioned steel structure welding auxiliary equipment, two groups of guide slides are connected to the bottom of one end of the circuit connector, and two groups of guide grooves are respectively opened through the bottom of the trapezoidal base block, the guide grooves match the guide slide structure, and the guide grooves and the guide slides are slidably matched, and conductive bumps are also respectively provided on the inner middle part of the trapezoidal base block and the circuit connector.

[0022] Based on the above technical features, when the transmission gear moves one side of the trapezoidal base block, the trapezoidal base block can come into contact with the conductive protrusions installed on one side of the circuit connector. When the two sets of conductive protrusions are in contact, the contact switch and the warning light and the electric sprayer are electrically connected. When the electric sprayer is powered on, it can spray the purification liquid inside the second tank to effectively decompose and neutralize the discharged welding fume. When the warning light is powered on, it can emit a bright light to remind the welding worker that the fume purification component is in the exhaust gas purification operation state.

[0023] Preferably, in the above-mentioned steel structure welding auxiliary equipment, the smoke deflector comprises a conical cover body, a first annular tube is arranged at one end of the conical cover body, a plurality of groups of air inlets are distributed in a circular array on the inner wall of the first annular tube, a second annular tube is connected to the end of the conical cover body away from the first annular tube, a connecting internal thread is provided on the inner wall of the second annular tube, the connecting internal thread matches the connecting screw disk structure, the connecting internal thread and the connecting screw disk are threadedly matched, a plurality of groups of smoke deflector tubes are connected between the second annular tube and the micro air pump, and a plurality of groups of dredging pipes are also connected between the second annular tube and the first annular tube.

[0024] Based on the above technical features, this solution can play a preliminary role in filtering metal particles in smoke and dust gas by distributing multiple groups of air inlets in a circular array on the inner wall of the first annular tube, and each group of air inlets is equipped with a fine-mesh filter.

[0025] Preferably, in the above-mentioned steel structure welding auxiliary equipment, the pressure storage component includes a first pressure storage tank, the air inlet port of the first pressure storage tank is connected to a sealing valve plug, one side of the sealing valve plug is connected to a valve stem, the end of the valve stem away from the sealing valve plug is equipped with a force-bearing push plate, the sleeve of the valve stem is provided with a first compression spring, the end of the first pressure storage tank away from the sealing valve plug is connected to a guide pipe, the end of the guide pipe away from the first pressure storage tank is equipped with a second pressure storage tank, the top of the inner cavity of the second pressure storage tank is connected to a tension spring, the bottom of the tension spring is equipped with a sealing valve plate, the inner wall of the second pressure storage tank close to the sealing valve plate is provided with a limiting baffle distributed in a circular array, the limiting baffle matches the sealing valve plate structure, and the limiting baffle and the sealing valve plate are transitionally matched.

[0026] Based on the above technical features, when the welding gas carried inside the first pressure accumulator tank and the second pressure accumulator tank reaches a peak value, the gas pressure inside the welding gas is greater than the elastic force of the tension spring, and the sealing valve plate can be pushed downward to open. Since the pressure values ​​inside the first pressure accumulator tank and the second pressure accumulator tank are greater than the pressure value in the spiral heat exchange tube, the present solution can also utilize the welding gas instantly released from the second pressure accumulator tank to flush open the blocked parts in the spiral heat exchange tube, thereby restoring the heat exchange box to normal operating state.

[0027] Preferably, in the above-mentioned steel structure welding auxiliary equipment, both sides of the interior of the second pressure accumulator tank close to the limit baffle are provided with storage adjustment grooves, and a trapezoidal top pressure block is arranged inside the storage adjustment groove. A second compression spring is also connected between the trapezoidal top pressure block and the storage adjustment groove, and the elastic force of the compression spring is smaller than that of the tension spring.

[0028] Based on the above technical features, this solution can temporarily limit the two sides of the sealing valve plate that is pushed open downward by means of the trapezoidal top pressure block and the second compression spring installed on the second pressure accumulator tank, so that the first pressure accumulator tank and the second pressure accumulator tank can continue to release pressure outward. When the pressure inside the first pressure accumulator tank and the second pressure accumulator tank is completely released, the tension spring can pull up and reset the sealing valve plate that is pushed open downward by utilizing the characteristic that the elastic force of the second compression spring is smaller than that of the tension spring, so as to facilitate subsequent use.

[0029] The present invention provides a steel structure welding auxiliary equipment, which has the following technical points and beneficial effects:

[0030] 1. The steel structure welding auxiliary equipment designed in this scheme has shown significant benefits in many aspects, especially in improving the safety of welding operations and reducing pollution to the environment. First, the fume purification mechanism of the equipment effectively reduces the emission of harmful substances in welding fume through efficient fume collection and purification mechanisms, and reduces the risk of welders being exposed to harmful environments. This is of great significance for protecting the health of welders and reducing respiratory diseases such as cough, asthma, bronchitis, etc. caused by inhaling harmful fumes. Secondly, the design of the equipment not only takes into account the immediate needs of welding operations, but also takes into account the long-term environmental impact. Through the coordinated use of heat exchange boxes and gas decomposition tanks, the equipment can significantly reduce the temperature and harmful substance content in the fume, thereby reducing pollution to the atmosphere and improving air quality, which has a positive effect on reducing the formation of haze and protecting the environment;

[0031] 2. This solution can improve the safety and convenience of the operation of steel structure welding auxiliary equipment through the electric sprayer and warning light. The electric sprayer sprays water mist through the atomizing nozzle to further purify the fume, and the warning light provides a visual warning when the equipment is running to ensure the safety of the operator. At the same time, the design of the contact switch makes the start and stop of the equipment more convenient, reducing the complexity and potential risks of operation. The design of the pressure storage component in this solution is also a highlight of the equipment. When the micro air pump continues to supply air to the heat exchange box, and the warning light does not light up normally, it may mean that the cooled welding fume cannot be discharged normally. This is usually because the spiral heat exchange tube is blocked. Once the blockage occurs, the high-pressure welding fume will squeeze the first compression spring through the push plate, thereby causing a gap between the sealing valve plug and the air inlet port of the first accumulator. Subsequently, the high-pressure welding gas will flow into the first and second accumulators. When the gas pressure inside the accumulator exceeds the elastic force of the spring, the sealing valve plate will be pushed open to allow the gas to be released. Since the pressure inside the accumulator is higher than the spiral heat exchange tube, this pressure difference can be used to clear the blockage in the tube;

[0032] 3. This solution can temporarily limit the movement of the sealing valve plate by installing a trapezoidal top pressure block and a second compression spring on the second pressure accumulator to ensure continuous release of gas. When the pressure in the pressure accumulator is released, the tension spring can pull up the sealing valve plate to reset it by utilizing the characteristic that the elastic force of the second compression spring is less than that of the tension spring, thereby restoring the normal operation of the system and preparing for the next use. From the above, it can be seen that this solution utilizes the combined use of the first pressure accumulator and the second pressure accumulator, so that the equipment can effectively control the flue gas pressure and ensure the stability and continuity of the flue gas purification process. This design not only improves the working efficiency of the equipment, but also enhances its adaptability in different working environments. On the whole, this steel structure welding auxiliary equipment not only improves the safety of welding operations, but also significantly reduces the impact on the environment through its innovative design and efficient functions. This not only brings technological innovation to the welding industry, but also provides strong support for environmental protection and workers' health. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the flue gas purification mechanism in the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the welding gun assembly in the present invention;

[0036] Figure 4 This is a schematic diagram of the disassembled structure of the flue gas purification component in the present invention;

[0037] Figure 5 For the present invention Figure 4 A is an enlarged structural diagram;

[0038] Figure 6 It is a schematic diagram of the cross-sectional structure of the heat exchange box in the present invention;

[0039] Figure 7 It is a schematic diagram of the split structure of the gas decomposition tank in the present invention;

[0040] Figure 8 It is a schematic cross-sectional structural diagram of the second tank body in the present invention;

[0041] Fig. 9 It is a schematic diagram of the contact switch structure in the present invention;

[0042] Fig.10 is a schematic diagram of the conductive bump structure of the present invention;

[0043] Fig.11 It is a schematic diagram of the cross-sectional structure of the smoke guide cover in the present invention;

[0044] Fig.12It is a schematic diagram of the planar structure of the pressure storage component in the present invention.

[0045] In the figure: 1. welding robot; 2. fume purification mechanism; 21. fume guide hood; 211. conical hood; 212. first annular tube; 213. air inlet; 214. second annular tube; 215. connecting internal thread; 216. fume guide tube; 217. dredging pipeline; 22. micro air pump; 23. gas pipeline; 24. fume purification component; 241. heat exchange box; 2411. water delivery pipe; 2412. spiral heat exchange tube; 241 3. Installation cavity; 2414, water storage tank; 2415, first water extraction pipe; 242, gas decomposition tank; 2421, first tank body; 24211, shielding cover; 24212, seepage notch; 2422, smoke filter element; 2423, second tank body; 24231, discharge pipe; 24232, second water extraction pipe; 24233, micro water pump; 24234, three-way valve; 24235, annular groove; 24236, electric sprayer ; 24237, atomizing nozzle; 24238, warning light; 243, return water tank; 244, exhaust pipe; 245, one-way valve; 246, exhaust hood; 247, impeller; 248, transmission gear; 249, contact switch; 2491, circuit connector; 24911, guide slide; 24912, guide slide; 24913, conductive bump; 2492, trapezoidal base block; 2493, elastic reset rod; 5, welding gun assembly; 6, Welding gun body; 61, welding head; 62, gas nozzle; 7, connecting screw disk; 8, fuel delivery pipe; 9, pressure storage component; 91, first pressure storage tank; 92, sealing valve plug; 93, valve stem; 94, force push plate; 95, first compression spring; 96, guide pipe; 97, second pressure storage tank; 971, storage adjustment groove; 972, trapezoidal top pressure block; 973, second compression spring; 98, tension spring; 99, sealing valve plate; 910, limit baffle. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in 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.

[0047] See also Figures 1 to 7 , the present invention provides a technical solution for steel structure welding auxiliary equipment:

[0048] A steel structure welding auxiliary device comprises a welding mechanical arm 1, a fume purification mechanism 2 is arranged on the top of the welding mechanical arm 1, the fume purification mechanism 2 comprises a fume deflector 21, a micro air pump 22 is installed at one end of the fume deflector 21, a gas pipeline 23 is connected to one end of the micro air pump 22, a fume purification component 24 is arranged at one end of the gas pipeline 23 away from the micro air pump 22, the fume purification component 24 comprises a heat exchange box 241, a gas decomposition tank 242 is installed at one end of the top of the heat exchange box 241, and the heat exchange box 241 is provided with a gas decomposition tank 242. A return water groove 243 is provided at the top of one end, an exhaust pipe 244 is connected to the interior of the return water groove 243, a one-way valve 245 is connected to the bottom of one end of the heat exchange box 241 close to the return water groove 243, an exhaust hood 246 is provided at the exhaust port of the exhaust pipe 244, an impeller 247 is rotatably connected to the middle part of the exhaust hood 246, transmission gears 248 are respectively connected to the two sides of the exhaust hood 246, both sets of transmission gears 248 are transmission connected to the impeller 247, and contact switches 249 are also installed on both sides of the exhaust hood 246.

[0049] Both sides of the outside of the heat exchange box 241 are connected to water delivery pipes 2411, and a spiral heat exchange tube 2412 is arranged inside the heat exchange box 241. An installation cavity 2413 is provided at one end of the spiral heat exchange tube 2412 close to the gas pipeline 23, and a water storage tank 2414 is provided at one end of the spiral heat exchange tube 2412 away from the gas pipeline 23. A first water pumping pipe 2415 is connected to one side of the return water tank 243, and a pressure storage component 9 is also installed inside the installation cavity 2413. The spiral heat exchange tube 2412 installed inside the heat exchange box 241 is made of copper alloy material, which has high thermal conductivity and excellent tensile strength. Such a design can significantly improve the heat exchange efficiency of high-temperature welding fume. At the same time, the high strength characteristics of the copper alloy material can effectively prevent the spiral heat exchange tube 2412 from being damaged by welding fume under continuous pressurization. In addition, when the pressure storage component 9 instantly releases high-pressure gas, the pressure resistance of the copper alloy material can also ensure that the heat exchange tube is not easily damaged.

[0050] The gas decomposition tank 242 includes a first tank body 2421, a smoke filter element 2422 is installed on the top of the first tank body 2421, the top of the smoke filter element 2422 is also connected to the second tank body 2423, the top of the second tank body 2423 is connected to the discharge pipe 24231, the outer side of the second tank body 2423 is connected to the second water pumping pipe 24232, the middle of the second water pumping pipe 24232 is connected to a micro water pump 24233, and one end of the second water pumping pipe 24232 is also provided with a three-way valve 24234. The smoke filter element 2422 installed on the top of the first tank body 2421 adopts the activated carbon filter in the prior art, which can play the role of adsorption and filtration of metal particles and toxic and harmful substances in welding fume. The decomposition liquid in this scheme can be sodium hydroxide solution, which can effectively decompose and neutralize various toxic and harmful substances in welding fume.

[0051] The second tank body 2423 is provided with an annular groove 24235, and an electric sprayer 24236 is installed on the side of the second tank body 2423 close to the annular groove 24235. A plurality of atomizing nozzles 24237 are arranged in a circular array on the inner wall of the electric sprayer 24236. A warning light 24238 is also provided on the outer side of the second tank body 2423 away from the second water pumping pipe 24232. The warning light 24238, the electric sprayer 24236 and the contact switch 249 are all electrically connected. Then, by installing an electric sprayer 24236 and an atomizing nozzle 24237 inside the second tank body 2423, the electric sprayer 24236 adopts the electric liquid spraying device in the prior art, and by installing multiple groups of electric liquid spraying devices in series around the inside of the second tank body 2423, when the multiple groups of electric liquid spraying devices are powered on, the atomizing nozzle 24237 installed at the output end of each group of electric liquid spraying devices can be used to spray the decomposition liquid around the inner wall of the second tank body 2423 at the same time.

[0052] A shielding cover 24211 is provided on the top of the first tank body 2421, and seepage grooves 24212 are opened around the shielding cover 24211. The shielding cover 24211 installed on the top of the first tank body 2421 can guide the decomposition liquid dripping downwards, and can also shield the exhaust port of the exhaust hood 246 to prevent the falling decomposition liquid from flowing into the exhaust pipe 244. In combination with the seepage grooves 24212 opened around the shielding cover 24211, the decomposition liquid dripping downwards can be collected again in the return tank 243, thereby realizing the recycling of the decomposition liquid.

[0053] During operation, through the combined design of the smoke deflector 21, the micro air pump 22 and the gas pipeline 23, the welding smoke generated by the steel structure welding can be extracted and transported to the heat exchange box 241 and the gas decomposition tank 242, and the heat exchange can be used to achieve rapid cooling of the high-temperature welding smoke. The cooled welding smoke can be transported to the interior of the gas decomposition tank 242 through the exhaust pipe 244. When the electric sprayer 24236 is powered on, the decomposition liquid can be sprayed out in the form of atomization. The sprayed decomposition liquid can adhere to the smoke filter element 2422, and can soak the smoke filter element 2422. The soaked smoke filter element 2422 can fully filter and purify the welding gas passing thereto, thereby avoiding the discharge of toxic and harmful gases.

[0054] As an embodiment of the present invention, Figures 3 to 10 As shown, the fume purification assembly 24 is arranged on the top of the welding robot arm 1, and one end of the welding robot arm 1 is also connected to a welding gun assembly 5, the welding gun assembly 5 includes a welding gun body 6, a connecting screw plate 7 is installed in the middle of the welding gun body 6, and one end of the welding gun body 6 is also connected to a fuel delivery pipe 8;

[0055] The welding gun body 6 includes a welding head 61 and a gas nozzle 62 for steel structure welding. The welding head 61 is installed at one end of the welding gun body 6. The side of the welding gun body 6 close to the welding head 61 is also connected to the gas nozzle 62. The welding head 61 and the gas nozzle 62 in the welding gun body 6 play the role of concentrating heat and supplying gas respectively. Their combination can realize an efficient, accurate and safe welding process. The welding head 61 ensures heat concentration and welding accuracy, while the gas nozzle 62 provides a stable gas flow and flame shape adjustment, so that the welding gun body 6 can adapt to various steel structure welding requirements;

[0056] The contact switch 249 includes a circuit connector 2491, one end of which is provided with a trapezoidal base block 2492, the trapezoidal base block 2492 matches the structure of the transmission gear 248, the trapezoidal base block 2492 and the transmission gear 248 are meshed, and elastic reset rods 2493 are respectively provided between the trapezoidal base block 2492 and both sides of the circuit connector 2491. When the cooling welding fume is discharged from the exhaust hood 246 of the exhaust pipe 244, the impeller connected to the middle of the exhaust hood 246 can be blown. 247, the impeller 247 in the rotating state can drive the transmission gears 248 installed on both sides to rotate synchronously. Through the structural design of the meshing connection between the transmission gear 248 and the trapezoidal base block 2492, the transmission gear 248 in the rotating state can play a role of toggling the trapezoidal base block 2492 slidably connected to one side of the circuit connector 2491, and cooperate with the elastic reset rod 2493 installed between the trapezoidal base block 2492 and the two sides of the circuit connector 2491, it can also play a role of elastic reset of the toggled trapezoidal base block 2492.

[0057] Two groups of guide slides 24911 are connected to the bottom of one end of the circuit connector 2491, and two groups of guide grooves 24912 are respectively opened through the bottom of the trapezoidal base block 2492. The guide grooves 24912 match the structure of the guide slides 24911, and the guide grooves 24912 and the guide slides 24911 are slidably matched. Conductive bumps 24913 are also respectively provided on the inner middle part of the trapezoidal base block 2492 and the circuit connector 2491.

[0058] During operation, when the transmission gear 248 moves one side of the trapezoidal base block 2492, the trapezoidal base block 2492 can come into contact with the conductive protrusion 24913 installed on one side of the circuit connector 2491. When the two sets of conductive protrusions 24913 are in contact, the contact switch 249 and the warning light 24238 and the electric sprayer 24236 are electrically connected. When powered on, the electric sprayer 24236 can spray the purification liquid inside the second tank 2423 to effectively decompose and neutralize the discharged welding fume. When powered on, the warning light 24238 can emit a bright light to remind the welding worker that the fume purification component 24 is in the exhaust gas purification operation state.

[0059] As an embodiment of the present invention, Figure 11 to Figure 12As shown, the smoke guide cover 21 includes a conical cover body 211, a first annular tube 212 is arranged at one end of the conical cover body 211, and a plurality of groups of air inlets 213 are distributed in a circular array on the inner wall of the first annular tube 212. A second annular tube 214 is connected to the end of the conical cover body 211 away from the first annular tube 212. A connecting internal thread 215 is provided on the inner wall of the second annular tube 214. The connecting internal thread 215 matches the structure of the connecting screw disk 7. The connecting internal thread 215 and the connecting screw disk 7 are threadedly matched. A plurality of groups of smoke guide tubes 216 are connected between the second annular tube 214 and the micro air pump 22. A plurality of groups of dredging pipelines 217 are also connected between the second annular tube 214 and the first annular tube 212. Through the plurality of groups of air inlets 213 distributed in a circular array on the inner wall of the first annular tube 212, and each group of air inlets 213 is equipped with a fine-mesh filter, the metal particles in the smoke gas can be initially filtered.

[0060] The pressure storage component 9 includes a first pressure storage tank 91, the air inlet port of the first pressure storage tank 91 is connected to a sealing valve plug 92, one side of the sealing valve plug 92 is connected to a valve stem 93, the end of the valve stem 93 away from the sealing valve plug 92 is equipped with a force push plate 94, the sleeve of the valve stem 93 is equipped with a first compression spring 95, the end of the first pressure storage tank 91 away from the sealing valve plug 92 is connected to a guide pipe 96, the end of the guide pipe 96 away from the first pressure storage tank 91 is equipped with a second pressure storage tank 97, the top of the inner cavity of the second pressure storage tank 97 is connected to a tension spring 98, the bottom of the tension spring 98 is equipped with a sealing valve plate 99, and the inner wall of the second pressure storage tank 97 near the sealing valve plate 99 is provided with a limited baffle array. 910, the limit baffle 910 is matched with the sealing valve plate 99 structure, and there is a transition fit between the limit baffle 910 and the sealing valve plate 99. When the welding gas carried inside the first pressure accumulator tank 91 and the second pressure accumulator tank 97 reaches a peak value, the gas pressure inside the welding gas is greater than the elastic force of the tension spring 98, and the sealing valve plate 99 can be pushed downward to open. Since the pressure value inside the first pressure accumulator tank 91 and the second pressure accumulator tank 97 is greater than the pressure value in the spiral heat exchange tube 2412, the present scheme can also use the welding gas instantly released from the second pressure accumulator tank 97 to flush the blocked part in the spiral heat exchange tube 2412, so that the heat exchange box 241 returns to normal operating state.

[0061] The second pressure accumulator tank 97 is provided with a storage adjustment groove 971 on both sides of the interior near the limit baffle 910, and a trapezoidal top pressure block 972 is arranged inside the storage adjustment groove 971. A second compression spring 973 is also connected between the trapezoidal top pressure block 972 and the storage adjustment groove 971, and the elastic force of the second compression spring 973 is smaller than that of the tension spring 98.

[0062] During operation, the trapezoidal top pressure block 972 and the second compression spring 973 installed on the second pressure accumulator tank 97 can temporarily limit the two sides of the sealing valve plate 99 that is pushed open downward, so that the first pressure accumulator tank 91 and the second pressure accumulator tank 97 can continue to release pressure outward. When the pressure inside the first pressure accumulator tank 91 and the second pressure accumulator tank 97 is completely released, the tension spring 98 can pull up and reset the sealing valve plate 99 that is pushed open downward, utilizing the characteristic that the elastic force of the second compression spring 973 is less than that of the tension spring 98, so as to facilitate subsequent use.

[0063] Working principle: The steel structure welding auxiliary equipment designed by the present invention is mainly composed of a welding robot arm 1 and a fume purification mechanism 2, wherein the fume purification mechanism 2 includes a fume guide hood 21, a micro air pump 22, a gas pipeline 23 and a fume purification component 24. The fume purification mechanism 2 extracts the welding fume generated by the steel structure welding and transports it to the heat exchange box 241 and the gas decomposition tank 242 through the combined design of the fume guide hood 21, the micro air pump 22 and the gas pipeline 23. When the high-temperature welding fume enters the spiral heat exchange tube 241 of the heat exchange box 241, the fume purification component 24 is removed. At 412, cold water is circulated and transported to the interior of the heat exchange box 241 through two groups of water pipes 2411, and the high-temperature welding fume can be quickly cooled by heat exchange. The exhaust port of the spiral heat exchange tube 2412 is connected with the exhaust pipe 244, the water storage tank 2414, and the one-way valve 245. Therefore, the cooled welding fume can be transported to the inside of the gas decomposition tank 242 through the exhaust pipe 244, and the liquefied water generated by the cooling of the high-temperature welding fume can be collected in the water storage tank 2414 and discharged to the outside in conjunction with the one-way valve 245.

[0064] When the welding fume after cooling is discharged outward from the exhaust hood 246 of the exhaust pipe 244, the impeller 247 connected to the middle of the exhaust hood 246 can be blown, and the impeller 247 in the rotating state can drive the transmission gears 248 installed on both sides to rotate synchronously. Through the structural design of the meshing connection between the transmission gear 248 and the trapezoidal base block 2492, the transmission gear 248 in the rotating state can play a role of shifting the trapezoidal base block 2492 slidably connected to one side of the circuit connector 2491. When the transmission gear 248 shifts the trapezoidal base block 2492 on one side, the trapezoidal base block 2492 can come into contact with the conductive bump 24913 installed on one side of the circuit connector 2491. When the two sets of conductive protrusions 24913 are in contact, the contact switch 249 is electrically connected to the warning light 24238 and the electric sprayer 24236. When powered on, the electric sprayer 24236 can spray the purification liquid inside the second tank 2423 to effectively decompose and neutralize the discharged welding fume. When powered on, the warning light 24238 can emit a bright light to remind the welding worker that the fume purification assembly 24 is in the exhaust gas purification operation state. In conjunction with the elastic reset rod 2493 installed between the trapezoidal base block 2492 and the two sides of the circuit connector 2491, it can also play a role in elastic reset of the toggle-adjusted trapezoidal base block 2492.

[0065] When the micro air pump 22 continues to deliver welding gas to the inside of the heat exchange box 241 and the warning light 24238 does not emit a normal bright light, it can be explained that the welding fume after cooling cannot be discharged from the exhaust hood 246 of the exhaust pipe 244. It may be that the inside of the spiral heat exchange tube 2412 is blocked. When the inside of the spiral heat exchange tube 2412 is blocked, the welding fume under high pressure can squeeze the first compression spring 95 through the push plate 94, so that a gap is generated between the sealing valve plug 92 and the air inlet port of the first pressure accumulator tank 91. At this time, the high-pressure welding gas in the spiral heat exchange tube 2412 can flow into the first pressure accumulator tank 91 and the second pressure accumulator tank 97. When the welding gas carried inside the first pressure accumulator tank 91 and the second pressure accumulator tank 97 reaches a peak value, the air pressure inside the welding gas is greater than the elastic force of the tension spring 98, which can push the sealing valve plate 99 downward. The first pressure accumulator 91 and the second pressure accumulator 97 are automatically opened. Since the pressure values ​​inside the first pressure accumulator 91 and the second pressure accumulator 97 are greater than the pressure value in the spiral heat exchange tube 2412, the present solution can use the welding gas instantly released from the second pressure accumulator 97 to flush the blocked part in the spiral heat exchange tube 2412, so that the heat exchange box 241 can be restored to a normal operating state. In combination with the trapezoidal top pressure block 972 and the second compression spring 973 installed on the second pressure accumulator 97, the two sides of the sealing valve plate 99 pushed downward and opened can be temporarily limited, so that the first pressure accumulator 91 and the second pressure accumulator 97 can continuously release the pressure outward. When the pressure inside the first pressure accumulator 91 and the second pressure accumulator 97 is completely released, the tension spring 98 can pull up and reset the sealing valve plate 99 pushed downward and opened, so as to facilitate subsequent use.

[0066] The return water tank 243 opened at the top of one end of the heat exchange box 241 can be used for temporary storage of decomposition liquid. The first pumping pipe 2415 connected to one side of the return water tank 243 is connected to the second pumping pipe 24232. When the micro pump 24233 is powered on, the decomposition liquid in the return water tank 243 can be transported to the annular groove 24235 of the second tank body 2423. Through the three-way valve 24234 installed at one end of the second pumping pipe 24232, the micro pump 24233 can also extract the decomposition liquid from the outside according to the usage. When the electric sprayer 24236 is powered on, the decomposition liquid in the annular groove 24235 can be sprayed out in the form of atomization, and the sprayed decomposition liquid can adhere to the smoke filter element 2 422, and at the same time, the smoke filter element 2422 can be soaked. The soaked smoke filter element 2422 can fully filter and purify the welding gas to avoid the discharge of toxic and harmful gases. When the decomposition liquid adsorbed in the smoke filter element 2422 is too much, it penetrates and drips downward under the action of gravity. The shielding cover 24211 installed on the top of the first tank body 2421 can guide the decomposition liquid dripping downward, and at the same time, it can also shield the exhaust port of the exhaust hood 246 to prevent the falling decomposition liquid from flowing into the exhaust pipe 244. With the seepage notches 24212 opened around the shielding cover 24211, the decomposition liquid dripping downward can be collected again in the return tank 243, so as to realize the recycling of the decomposition liquid.

[0067] The spiral heat exchange tube 2412 in this solution is made of copper alloy material, which has high thermal conductivity and excellent tensile strength. Such a design can significantly improve the heat exchange efficiency of high-temperature welding fumes. At the same time, the high strength characteristics of the copper alloy material can effectively prevent the spiral heat exchange tube 2412 from being damaged by welding fumes under continuous pressurization. In addition, when the pressure storage component 9 releases high-pressure gas instantly, the pressure resistance of the copper alloy material can also ensure that the heat exchange tube is not easily damaged, thereby improving the reliability and service life of the heat exchange box 241. When the first pressure storage tank 91 and the second pressure storage tank 97 continue to release pressure and clear the blockage in the spiral heat exchange tube 2412, a large amount of welding gas will be discharged. The smoke is received, which greatly speeds up the rotation speed of the impeller 247 in the middle of the exhaust hood 246, and also speeds up the driving gear 248 to move the trapezoidal base block 2492. Therefore, the reset path of the trapezoidal base block 2492 is shortened, so that the two groups of conductive protrusions 24913 are changed from intermittent contact to long-term contact. This process enables the electric sprayer 24236 and the warning light 24238 to maintain a long-term energized operation state. The electric sprayer 24236 that is energized for a long time can continuously spray the purification liquid into the interior of the second tank body 2423, and effectively decompose and neutralize the large amount of welding gas in the first tank body 2421, thereby avoiding the emission of toxic and harmful gases.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure welding auxiliary device, comprising a welding robot arm (1), characterized in that: A fume purification mechanism (2) is arranged on the top of the welding robot arm (1), the fume purification mechanism (2) comprising a fume deflector (21), a micro air pump (22) being installed at one end of the fume deflector (21), a gas pipeline (23) being connected to one end of the micro air pump (22), a fume purification component (24) being arranged at one end of the gas pipeline (23) away from the micro air pump (22), the fume purification component (24) being arranged on the top of the welding robot arm (1), and a welding gun component (5) being connected to one end of the welding robot arm (1); The welding gun assembly (5) comprises a welding gun body (6), a connecting screw plate (7) is installed in the middle of the welding gun body (6), and one end of the welding gun body (6) is also connected to a fuel delivery pipe (8); The welding gun body (6) comprises a welding head (61) and a gas nozzle (62) for welding steel structures, wherein the welding head (61) is mounted on one end of the welding gun body (6), and a gas nozzle (62) is also connected to a side of the welding gun body (6) close to the welding head (61); The flue gas purification component (24) comprises a heat exchange box (241), a gas decomposition tank (242) is installed at one end of the top of the heat exchange box (241), a return water groove (243) is opened at the top of one end of the heat exchange box (241), an exhaust pipe (244) is connected to the inside of the return water groove (243), a one-way valve (245) is connected to the bottom of one end of the heat exchange box (241) close to the return water groove (243), an exhaust hood (246) is provided at the exhaust port of the exhaust pipe (244), an impeller (247) is rotatably connected to the middle of the exhaust hood (246), transmission gears (248) are respectively connected to the two sides of the exhaust hood (246), and the two sets of the transmission gears (248) and the impeller (247) are both transmission-connected, and contact switches (249) are also respectively installed on the two sides of the exhaust hood (246); Both sides of the exterior of the heat exchange box (241) are connected to water delivery pipes (2411); a spiral heat exchange tube (2412) is arranged inside the heat exchange box (241); an installation cavity (2413) is provided at one end of the spiral heat exchange tube (2412) close to the gas pipeline (23); a water storage tank (2414) is provided at one end of the spiral heat exchange tube (2412) away from the gas pipeline (23); a first water pumping pipe (2415) is connected to one side of the return water tank (243); and a pressure storage component (9) is also installed inside the installation cavity (2413); The pressure storage component (9) comprises a first pressure storage tank (91), an air inlet port of the first pressure storage tank (91) is connected to a sealing valve plug (92), one side of the sealing valve plug (92) is connected to a valve stem (93), an end of the valve stem (93) away from the sealing valve plug (92) is provided with a force-bearing push plate (94), a sleeve of the valve stem (93) is provided with a first compression spring (95), an end of the first pressure storage tank (91) away from the sealing valve plug (92) is connected to a guide pipe (96), and the guide pipe (9 6) A second pressure accumulator (97) is installed at one end away from the first pressure accumulator (91), a tension spring (98) is connected to the top of the inner cavity of the second pressure accumulator (97), a sealing valve plate (99) is installed at the bottom of the tension spring (98), and a limiting baffle (910) is distributed in an array around the inner wall of the second pressure accumulator (97) near the sealing valve plate (99), the limiting baffle (910) matches the sealing valve plate (99) in structure, and a transition fit is formed between the limiting baffle (910) and the sealing valve plate (99); The second pressure accumulator tank (97) is provided with storage adjustment grooves (971) on both sides of its interior near the limit baffle (910), a trapezoidal top pressure block (972) is provided inside the storage adjustment groove (971), and a second compression spring (973) is connected between the trapezoidal top pressure block (972) and the storage adjustment groove (971), and the elastic force of the second compression spring (973) is smaller than that of the tension spring (98).

2. A steel structure welding auxiliary equipment according to claim 1, characterized in that: The gas decomposition tank (242) comprises a first tank body (2421), a smoke filter element (2422) being installed on the top of the first tank body (2421), the top of the smoke filter element (2422) being connected to a second tank body (2423), the top of the second tank body (2423) being connected to a discharge pipe (24231), a second water pumping pipe (24232) being connected to the outer side of the second tank body (2423), a micro water pump (24233) being connected to the middle of the second water pumping pipe (24232), and a three-way valve (24234) being provided at one end of the second water pumping pipe (24232).

3. A steel structure welding auxiliary equipment according to claim 2, characterized in that: An annular through groove (24235) is provided inside the second tank body (2423); an electric sprayer (24236) is installed on a side of the second tank body (2423) close to the annular through groove (24235); a plurality of groups of atomizing nozzles (24237) are distributed in a circular array on the inner wall of the electric sprayer (24236); a warning light (24238) is also provided on an outer side of the second tank body (2423) away from the second water pumping pipe (24232); and the warning light (24238), the electric sprayer (24236) and the contact switch (249) are all electrically connected.

4. A steel structure welding auxiliary equipment according to claim 3, characterized in that: A shielding cover (24211) is provided on the top of the first tank body (2421), and liquid seepage slots (24212) are provided through the four sides of the shielding cover (24211).

5. A steel structure welding auxiliary equipment according to claim 4, characterized in that: The contact switch (249) comprises a circuit connector (2491), one end of which is provided with a trapezoidal base block (2492), the trapezoidal base block (2492) matches the structure of the transmission gear (248), the trapezoidal base block (2492) and the transmission gear (248) are meshingly connected, and elastic reset rods (2493) are respectively provided between the trapezoidal base block (2492) and the two sides of the circuit connector (2491).

6. A steel structure welding auxiliary equipment according to claim 5, characterized in that: Two groups of guide slides (24911) are connected to the bottom of one end of the circuit connector (2491), and two groups of guide grooves (24912) are respectively opened through the bottom of the trapezoidal base block (2492), and the guide grooves (24912) and the guide slides (24911) are matched in structure, and the guide grooves (24912) and the guide slides (24911) are slidably matched, and conductive protrusions (24913) are also respectively provided on the inner middle parts of the trapezoidal base block (2492) and the circuit connector (2491).

7. The steel structure welding auxiliary equipment according to claim 1, characterized in that: The smoke guide hood (21) comprises a conical hood body (211), one end of the conical hood body (211) is provided with a first annular tube (212), a plurality of groups of air inlets (213) are distributed in a circumferential array on the inner wall of the first annular tube (212), one end of the conical hood body (211) away from the first annular tube (212) is connected to a second annular tube (214), an inner wall of the second annular tube (214) is provided with a connecting internal thread (215), the connecting internal thread (215) matches the structure of a connecting screw disk (7), the connecting internal thread (215) and the connecting screw disk (7) are threadedly matched, a plurality of groups of smoke guide ducts (216) are connected between the second annular tube (214) and the micro air pump (22), and a plurality of groups of dredging pipelines (217) are also connected between the second annular tube (214) and the first annular tube (212).

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