Laser welding station with smoke treatment device and smoke treatment method

Abstract

The present application relates to the field of smoke treatment, specifically to a smoke treatment device for laser tailor welding station, comprising an air inlet pipe, the air inlet pipe is connected with a dust filtering mechanism; the dust filtering mechanism is used for cooling and dust filtering treatment of the smoke discharged by the laser tailor welding station; the dust filtering mechanism comprises a dust conduit, the dust conduit is sealingly connected with the air inlet pipe, one end of the dust conduit away from the air inlet pipe is sealingly connected with a fan, and a plurality of inner lower plates and inner upper plates are fixedly installed inside the dust conduit. After the motor is started, the motor rotates to engage the worm to rotate the worm wheel, the worm wheel cooperates with the transmission rod to drive the scraper to adjust the position of the sealing plate, the sealing plate is separated from the discharge frame, the dust and the mud water enter the discharge channel along the discharge frame, the water pipe II introduces water into the discharge channel to flush the discharge material, and the dust particles and metal particles in the smoke are filtered and discharged.

Description

Technical Field

[0001] This invention relates to the field of fume treatment, specifically to a fume treatment device and method for laser welding stations. Background Technology

[0002] Laser welding is a process of joining two steel plates of the same or different materials, thicknesses, and coatings together using a laser to meet the different requirements of various parts of a component. Laser welding is an advanced technology in automobile production. Body structures made from laser-welded plates achieve the most rational metal combination, improving the performance of body components, reducing vehicle weight, increasing structural reliability and safety, and optimizing processes. Currently, foreign countries have achieved both straight and curved laser welding technologies, but the overall equipment price is high and flexibility is insufficient. Domestic laser welding equipment currently focuses on straight welding technology; curved laser welding technology is still under development and not yet mature. Currently, laser-welded plates generally have straight weld seams. To provide greater flexibility for body designers, the future trend of laser welding plates is the development of curved weld seams from straight seams. Existing laser splicing stations generate a large amount of fumes due to the high temperature of the laser contacting the metal. However, this fumes contain a high metal content, and the filtration efficiency of residue within the dust particles is relatively low. It is necessary to solve the problem of dust and particle treatment in existing fume processing methods.

[0003] Therefore, those skilled in the art have provided fume treatment devices and methods for laser welding stations to solve the problems mentioned in the background art. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides:

[0005] A fume treatment device for a laser welding station includes an air inlet pipe connected to a dust filtration mechanism. The dust filtration mechanism is used to cool and filter the fumes emitted from the laser welding station. The dust filtration mechanism includes a dust duct, which is sealed to the air inlet pipe, and a fan is sealed to the end of the dust duct away from the air inlet pipe.

[0006] Preferably, the dust duct has several inner lower plates and inner upper plates fixedly installed inside it, and the several inner lower plates and several inner upper plates are fixedly installed inside the dust duct in an alternating manner.

[0007] Preferably, a transmission rod is rotatably mounted at the center of the inner upper plate and the inner lower plate, an outer cover is rotatably mounted at one end of the transmission rod, and a worm gear is rotatably mounted inside the outer cover.

[0008] Preferably, the worm gear meshes with a worm wheel, the worm wheel is fixedly installed outside the transmission rod, and the worm wheel is movably located inside the outer cover. One end of the worm gear rotates through the dust duct and is connected to a motor.

[0009] Preferably, a scraper is fixedly installed on the outer wall of the transmission rod, and a sealing plate is fixedly installed on the end of the scraper away from the transmission rod, and there are several sealing plates.

[0010] Preferably, the sealing plates are respectively movably located between the inner lower plate and the inner upper plate.

[0011] Preferably, the bottom wall of the dust duct is provided with several discharge frames, the bottom end of each discharge frame is connected to a discharge channel, a flushing plate is installed inside one end of the discharge channel, the flushing plate is connected to a water pipe, and one end of the water pipe is connected to a water pipe.

[0012] Preferably, the water pipe is connected to and equipped with several water spray plates, and an atomizing head is installed at the bottom of the water spray plate. The bottom of the water spray plate is installed through the inside of the dust duct.

[0013] Preferably, one end of the water pipe is connected to a water pump, a filter device is installed at the bottom of the water pump, one end of the filter device is connected to a detection box, and the other end of the filter device is connected to an exhaust pipe. The filter device is sequentially equipped with a flue gas inlet detection module, an activated carbon filter, a silica gel filter, a zeolite molecular sieve, an activated alumina filter, and a flue gas exhaust detection module.

[0014] The method for treating fumes from laser welding stations includes the following steps:

[0015] S1: Smoke and Dust Intake:

[0016] Step a: Connect the air intake pipe to the exhaust end of the laser welding station;

[0017] Step b: The exhaust end of the laser welding station enters the dust duct through the inlet pipe;

[0018] S2: Dust filtration:

[0019] Step a: Cooling: Connect the water pump to an external water source, start the water pump and evenly discharge the water source into the spray plate through the water pipe, and spray it onto the flue gas of the laser welding station through the atomizing head of the spray plate to cool the flue gas.

[0020] Step b: Dust suppression: In step 2, the water droplets cooled in step a are adsorbed on the inner lower plate and inner upper plate, while the dust from the laser welding station circulating through the dust duct adsorbs the dust in the dust through the inner lower plate and inner upper plate.

[0021] Step c: Discharge: The dust adsorbed in step b of step 2 is washed by the water mist in step a of step 2 to the vicinity of the discharge frame, and the motor is started. After the motor starts, it rotates and the worm gear meshes with the worm wheel to rotate. The worm wheel, in conjunction with the transmission rod, drives the scraper to adjust the position of the sealing plate. The sealing plate is disengaged from the discharge frame, allowing the dust and mud to enter the discharge channel along the discharge frame and be discharged. At the same time, water pipe two introduces water into the discharge channel to wash the discharged material.

[0022] S3: Gas filtration

[0023] Step a: The detection module inside the gas detection chamber processes the gas and feeds the detection data back to the control device;

[0024] Step b: The gas detected in step a within step 3 enters the filtration device, and the gas passes through the dust inlet detection module of the filtration device to detect dust inlet, and then passes through activated carbon filter, silica gel filter, zeolite molecular sieve and activated alumina filter for filtration.

[0025] S4: Discharge:

[0026] After the fumes from the laser welding station are filtered by the filtration device in step b of step 3, they are detected and processed by the fume exhaust detection module, and the data is fed back to the control device. The filtration device filters the dust particles from the fumes from the laser welding station and discharges them to the subsequent waste gas treatment.

[0027] The technical effects and advantages of this invention are as follows:

[0028] In this invention, after the motor starts, it rotates in conjunction with the worm gear and worm wheel to rotate. The worm wheel, in conjunction with the transmission rod, drives the scraper to adjust the position of the sealing plate. The sealing plate disengages from the discharge frame, allowing dust and muddy water to enter the discharge channel along the discharge frame and be discharged. At the same time, water pipe 2 introduces water into the discharge channel to rinse the discharged materials, which facilitates the filtration and centralized discharge of dust particles and metal particles in the smoke and dust. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the fume treatment device for laser welding stations provided in the embodiments of this application;

[0030] Figure 2 This is a schematic diagram of the water spray plate in the fume treatment device for laser welding station provided in the embodiments of this application;

[0031] Figure 3 This is a schematic diagram of the transmission rod in the fume treatment device for laser welding station provided in the embodiments of this application;

[0032] Figure 4 This is a schematic diagram of the motor structure in the fume treatment device for laser welding station provided in the embodiments of this application;

[0033] Figure 5 This is a schematic diagram of the structure of water pipe 2 in the fume treatment device for laser welding station provided in the embodiments of this application;

[0034] Figure 6 This is a schematic diagram of the dust duct in the fume treatment device for laser welding station provided in the embodiments of this application;

[0035] Figure 7 This is a schematic diagram of the structure at point A in the fume treatment device for laser welding station provided in the embodiments of this application;

[0036] Figure 8 This is a schematic diagram of the structure at point B in the fume treatment device for laser welding station provided in the embodiments of this application.

[0037] Figure 9 This is a schematic diagram of the connection structure of the filter device in the fume treatment device for laser welding station provided in the embodiments of this application.

[0038] Figure 10 This is a schematic diagram of the structure of the fume treatment method for laser welding stations provided in the embodiments of this application.

[0039] In the picture:

[0040] 1. Air intake pipe;

[0041] 2. Dust filtration mechanism; 201. Dust duct; 202. Inner lower plate; 203. Inner upper plate; 204. Transmission rod; 205. Scraper; 206. Sealing plate; 207. Worm gear; 208. Worm; 209. Motor; 210. Outer cover; 211. Discharge frame; 212. Discharge channel; 213. Washing plate; 214. Water pipe one; 215. Water pipe two; 216. Spray plate; 217. Atomizing head; 218. Water pump;

[0042] 3. Fan; 4. Testing box; 5. Filter device; 6. Exhaust pipe. Detailed Implementation

[0043] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0044] Example 1

[0045] Please see Figures 1-9 In this embodiment, a fume treatment device for a laser welding station is provided, including an air inlet pipe 1, which is connected to a dust filter mechanism 2. The dust filter mechanism 2 is used to cool and filter the fumes discharged from the laser welding station. The dust filter mechanism 2 includes a dust conduit 201, which is sealed to the air inlet pipe 1. A fan 3 is sealed to the end of the dust conduit 201 away from the air inlet pipe 1.

[0046] Preferably, a plurality of inner lower plates 202 and inner upper plates 203 are fixedly installed inside the dust duct 201, and the plurality of inner lower plates 202 and the plurality of inner upper plates 203 are fixedly installed inside the dust duct 201 in an alternating manner.

[0047] Preferably, a transmission rod 204 is rotatably mounted at the center of the inner upper plate 202 and the inner lower plate 203, an outer cover 210 is rotatably mounted at one end of the transmission rod 204, and a worm gear 208 is rotatably mounted inside the outer cover 210.

[0048] Preferably, the worm 208 meshes with a worm wheel 207, the worm wheel 207 is fixedly installed outside the transmission rod 204, and the worm wheel 207 is movably located inside the outer cover 210. One end of the worm 208 rotates through the dust duct 201 and is connected to a motor 209.

[0049] Preferably, a scraper 205 is fixedly installed on the outer wall of the transmission rod 204, and a sealing plate 206 is fixedly installed on the end of the scraper 205 away from the transmission rod 204, and there are several sealing plates 206.

[0050] Preferably, several of the sealing plates 206 are movably located between the inner lower plate 202 and the inner upper plate 203.

[0051] Preferably, the bottom wall of the dust duct 201 is provided with a plurality of discharge frames 211, the bottom end of the discharge frame 211 is connected to a discharge channel 212, a flushing plate 213 is installed inside one end of the discharge channel 212, the flushing plate 213 is connected to a water pipe 214, and one end of the water pipe 214 is connected to a water pipe 215.

[0052] Preferably, the water pipe 215 is connected to and installed with a plurality of water spray plates 216, and an atomizing head 217 is installed at the bottom of the water spray plate 216. The bottom of the water spray plate 216 is installed through the dust duct 201.

[0053] Preferably, one end of the water pipe 215 is connected to a water pump 218, and a filter device 5 is installed at the bottom of the water pump 218. One end of the filter device 5 is connected to a detection box 4, and the other end of the filter device 5 is connected to an exhaust pipe 6. The filter device 5 is equipped with a flue gas inlet detection module, an activated carbon filter, a silica gel filter, a zeolite molecular sieve, an activated alumina filter, and a flue gas exhaust detection module in sequence.

[0054] Working principle:

[0055] During dust filtration, the scraper 205 blocks the discharge frame 211 through the sealing plate 206 to prevent dust from passing through the discharge frame 211 during dust filtration.

[0056] When cleaning the filtered dust and metal particles, the fan 3 stops working and the motor 209 is started to clean the dust and metal particles.

[0057] Example 2

[0058] Please see Figure 10 This embodiment provides a method for treating fumes from a laser welding station, including the following steps:

[0059] S1: Smoke and Dust Intake:

[0060] Step a: Connect the intake pipe 1 to the exhaust end of the laser welding station;

[0061] Step b: The exhaust end of the laser welding station enters the dust duct 201 through the air inlet pipe 1;

[0062] S2: Dust filtration:

[0063] Step a: Cooling: Connect the water pump 218 to an external water source. Start the water pump 218 to evenly discharge the water source into the spray plate 216 through the water pipe 214. The water is then atomized and sprayed onto the fumes of the laser welding station through the atomizing head 217 of the spray plate 216 to cool the fumes.

[0064] Step b: Dust suppression: In step 2, the water droplets cooled in step a are adsorbed on the inner lower plate 202 and inner upper plate 203, while the dust from the laser welding station circulating through the dust duct 201 adsorbs the dust in the dust through the inner lower plate 202 and inner upper plate 203.

[0065] Step c: Discharge: The dust adsorbed in step b of step 2 is washed by the water mist in step a of step 2 to the vicinity of the discharge frame 211, and the motor 209 is started. After the motor 209 starts, it rotates and engages with the worm gear 208 to rotate the worm wheel 207. The worm wheel 207, in conjunction with the transmission rod 204, drives the scraper 205 to adjust the position of the sealing plate 206. The sealing plate 206 disengages from the discharge frame 211, allowing the dust and mud to enter the discharge channel 212 along the discharge frame 211 and be discharged. At the same time, the water pipe 215 introduces water into the discharge channel 212 to rinse the discharged material.

[0066] S3: Gas filtration

[0067] Step a: The detection module inside the gas detection chamber 4 processes the gas detection and feeds the detection data back to the control device;

[0068] Step b: The gas detected in step a within step 3 enters the filter device 5, and the gas passes through the dust inlet detection module of the filter device 5 to detect dust inlet, and then passes through the activated carbon filter, silica gel filter, zeolite molecular sieve and activated alumina filter for filtration.

[0069] S4: Discharge:

[0070] After the fumes from the laser welding station are filtered by the filter device 5 in step b of step 3, they are detected and processed by the fume exhaust detection module, and the data is fed back to the control device. The filter device 5 filters the dust particles from the fumes from the laser welding station and discharges them to the subsequent waste gas treatment.

[0071] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A fume treatment device for a laser welding station, comprising an air inlet duct (1), characterized in that, The dust filtering mechanism (2) is connected with the air inlet pipe (1); The dust filtering mechanism (2) is connected with the air inlet pipe (1); The dust filtering mechanism (2) includes a dust conduit (201) which is sealingly connected with the air inlet pipe (1), and a fan (3) is sealingly connected with the dust conduit (201) at an end away from the air inlet pipe (1); A plurality of inner lower plates (202) and inner upper plates (203) are fixedly installed inside the dust conduit (201), and the plurality of inner lower plates (202) and the plurality of inner upper plates (203) are fixedly installed inside the dust conduit (201) in a staggered manner; The inner lower plates (202) and the inner upper plates (203) are rotatably installed with a transmission rod (204) at the center of the circle, one end of the transmission rod (204) is rotatably installed with an outer cover (210), and the outer cover (210) is rotatably installed with a worm (208) inside; The worm (208) is engaged with a worm wheel (207), the worm wheel (207) is fixedly installed outside the transmission rod (204), the worm wheel (207) is movably located inside the outer cover (210), and one end of the worm (208) is rotatably penetrated through the dust conduit (201) and connected with a motor (209); The transmission rod (204) is fixedly installed with a scraping rod (205) on the outer wall, the scraping rod (205) is fixedly installed with a sealing plate (206) at an end away from the transmission rod (204), and the sealing plate (206) is a plurality of sealing plates; A plurality of discharge frames (211) are installed through the bottom wall of the dust conduit (201), a discharge channel (212) is connected with the bottom end of the discharge frame (211), a flushing plate (213) is installed inside one end of the discharge channel (212), a water pipe one (214) is connected with the flushing plate (213), and one end of the water pipe one (214) is connected with a water pipe two (215); A plurality of water spraying plates (216) are connected and installed with the water pipe two (215), an atomizing head (217) is installed at the bottom of the water spraying plate (216), and the water spraying plate (216) is installed through the bottom inside the dust conduit (201); One end of the water pipe two (215) is connected with a water pump (218), the water pump (218) is installed with a filtering device (5) at the bottom, one end of the filtering device (5) is connected with a detection box (4), the other end of the filtering device (5) is connected with an exhaust pipe (6), and the filtering device (5) is sequentially installed with a flue gas inlet detection module, an activated carbon filter screen, a silica gel filter screen, a zeolite molecular sieve screen, an activated alumina filter screen, and a flue gas outlet detection module.

2. The smoke treatment device for a laser tailor welding station according to claim 1, characterized in that A plurality of sealing plates (206) are movably located between the inner lower plates (202) and the inner upper plates (203).

3. A laser welding station smoke treatment method using the laser welding station smoke treatment device of claim 1, comprising the following steps: S1: flue gas inlet: Step a: the air inlet pipe (1) is connected with the exhaust end of the laser welding station; Step b: the exhaust end of the laser welding station enters the inside of the dust conduit (201) through the air inlet pipe (1); S2: dust filtering: Step a: cooling: the water suction end of the water pump (218) is connected to an external water source, and the water pump (218) is started to uniformly discharge the water source into the water spray plate (216) through the water pipe one (214), and the atomizing head (217) of the water spray plate (216) atomizes and sprays on the smoke of the laser tailor welding station, and the smoke is cooled; Step b: dust removal: the water droplets after cooling in step a in step 2 are adsorbed on the inner lower plate (202) and the inner upper plate (203), and the laser tailor welding station smoke passing through the dust body conduit (201) is adsorbed on the dust in the inner lower plate (202) and the inner upper plate (203); Step c: Discharge: the dust adsorbed in step b in step 2 is washed by the water mist in step a in step 2 to the vicinity of the discharge frame (211), and the motor (209) is started, and after the motor (209) is started, the cooperating worm (208) meshes with the worm gear (207) to rotate, the worm gear (207) cooperates with the transmission rod (204) to drive the scraper (205) to adjust the position of the sealing plate (206), the sealing plate (206) is separated from the discharge frame (211), so that the dust and mud enter the discharge channel (212) along the discharge frame (211) and are discharged, and the water pipe two (215) introduces water into the discharge channel (212) to wash the discharge. S3: gas filtration: Step a: the detection module in the gas detection box (4) detects the gas and feeds back the detection data to the control device; Step b: the gas after detection in step a in step 3 enters the filter device (5), and the smoke gas detection module of the filter device (5) detects the smoke gas, and then passes through the activated carbon filter screen, silica gel filter screen, zeolite molecular sieve screen and activated alumina filter screen for filtering treatment; S4: discharge: The laser tailor welding station smoke after filtering by the filter device (5) in step b in step 3 is detected by the smoke exhaust detection module and the data is fed back to the control device, and the dust particles in the laser tailor welding station smoke are filtered by the filter device (5) and discharged to the subsequent waste gas treatment.

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