A laser cutting device for aluminum alloy guardrail production

Abstract

The application discloses a kind of laser cutting device for aluminum alloy guardrail production, it is related to aluminum alloy guardrail production technical field, the device includes support base plate, support frame, lifting plate, suction pipe, laser cutting head, storage box, support wheel, lifting base, support mechanism, conveying mechanism.The laser cutting device is set through support mechanism, can drive support wheel synchronous self-adapting lifting, ensure that lifting support action is stable and accurate, inhibit the phenomenon that pipe material cutting appears deviation, shakes, trembles, reduce laser cutting error, the mechanism can be operated with conveying mechanism, in cutting phase, the position of pipe material is locked, in the stage of unloading, the automatic unloading of finished product is completed by the aid of inclined guide, waste slag collection component can also be linked to uniformly receive and process waste, improve the coherence and automation level of aluminum alloy guardrail pipe cutting operation, reduce the cost of manual intervention, meet the large-scale cutting production demand of large quantities, multiple specifications pipe material.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy guardrail production technology, specifically a laser cutting device for aluminum alloy guardrail production. Background Technology

[0002] Aluminum alloy railings are railing products made from aluminum alloy profiles through forming, processing, and surface protection treatment. They are characterized by light weight, high structural strength, rust and corrosion resistance, and durability, and serve both safety protection and decorative purposes.

[0003] In the production of aluminum alloy guardrails, laser cutting has become a key process due to its high precision, high efficiency and high flexibility. It can be adapted to the characteristics of aluminum material, and the cut is smooth with few burrs, small thermal deformation, and high processing accuracy. It can ensure that the components are spliced ​​and assembled tightly and firmly. At the same time, the processing efficiency is high, the material loss is low, and the smooth cut surface is also conducive to subsequent surface coating, effectively improving the overall quality and service life of the finished product.

[0004] A steel structure cutting device and method for road guardrail production, as described in patent CN120734560B, includes a base, a bracket mounted on top of the base, and a laser head mounted inside the bracket. It also includes: a conveying mechanism for conveying the steel pipe to be cut; a circumferential cutting mechanism for driving the steel pipe to rotate; a driving mechanism for driving the conveying mechanism and the circumferential cutting mechanism respectively; a slag collection mechanism for collecting the slag generated by laser cutting; and a slag discharge mechanism for discharging the cut steel pipe and the collected slag. In this steel structure cutting device and method for road guardrail production, the slag generated during the cutting of the steel pipe is blocked from entering the interior of the steel pipe by two sealing rings, and then collected into the inner pipe through a collection trough, avoiding the need for internal cleaning of the steel pipe after laser cutting.

[0005] The aforementioned patent, during its use, can transport steel pipes and collect the slag generated during cutting. However, due to the relatively low surface hardness of aluminum alloy pipes, when the pipe section falls from a vertical position and impacts the inner wall of the feeding chamber or the conveyor below, it is very easy to cause bumps, scratches, or even local dents at the pipe end or body, affecting the surface quality and aesthetics of the finished guardrail. Furthermore, the clamping and fixing is achieved by squeezing the clamping block driven by the hydraulic cylinder, but when cutting aluminum alloy guardrail pipes of different outer diameters or wall thicknesses, the original pipe groove and clamping block are difficult to provide a stable and centered clamping force, which can easily cause the pipe to deviate when being fed in, thus affecting the cutting accuracy. Based on this, a laser cutting device for the production of aluminum alloy guardrails is now provided, which can eliminate the drawbacks of the existing device. Summary of the Invention

[0006] The purpose of this invention is to provide a laser cutting device for the production of aluminum alloy guardrails, so as to solve the problems in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A laser cutting device for producing aluminum alloy guardrails includes a support base plate, a support frame mounted on the top of the support base plate, two lifting plates symmetrically slidably connected inside the support frame, an air extraction pipe and a laser cutting head mounted on the bottom of one of the lifting plates, the air extraction pipe being located on one side of the laser cutting head, a storage box being provided on one side of the support frame, the storage box extending into the interior of the support frame, a plurality of support wheels being longitudinally and equidistantly arranged at one end of the support frame, a lifting base being rotatably connected to the outer wall of each of the plurality of support wheels, and a support mechanism for providing auxiliary support for pipes of different specifications on the support base plate. The support mechanism includes: A third rack is slidably connected inside the support base plate. The bottom ends of the lifting base and another lifting plate are fixedly connected to a connecting push plate. A first gear is provided below the connecting push plate. The first gear meshes with the third rack. The first gear is rotatably connected to the support base plate. Two first connecting rotating plates are symmetrically arranged on the outer side of the first gear. Both first connecting rotating plates are fixedly connected to the end shaft of the first gear. A second connecting rotating plate is rotatably connected to the side of the first connecting rotating plate away from the first gear. The second connecting rotating plate is rotatably connected to the connecting push plate. Multiple fixed guide seats are fixedly connected longitudinally at equal intervals at the top of the support base plate. The multiple fixed guide seats and multiple support wheels are interleaved. The upper surfaces of the multiple fixed guide seats are all inclined. The support frame is equipped with a conveying mechanism for the stable conveying of pipes of different specifications.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions: In one alternative embodiment, the support mechanism further includes: A first transmission component is mounted on the support frame; The first transmission assembly includes: Two second gears are symmetrically rotated and connected inside the support frame. The outer walls of the two second gears are symmetrically meshed with two first racks. The outer walls of the two lifting plates are symmetrically fixedly connected with two connecting push blocks. The first racks are fixedly connected to the connecting push blocks. The first racks and the connecting push blocks are slidably connected to the support frame. The lifting base is provided with a limiting component for limiting the lifting of the lifting base; Another of the lifting plates is equipped with a collection component for collecting and discharging waste residue.

[0009] In one alternative embodiment, the limiting component includes: Two fixed guide plates are symmetrically arranged on the outside of the lifting base. Both fixed guide plates are fixedly connected to the supporting base plate. Two sets of movable sliders are symmetrically fixedly connected to the outer wall of the lifting base. The two fixed guide plates are respectively sleeved on the outer wall of the two sets of movable sliders. Each set of movable sliders has two sliders. A lifting groove for the movable sliders to slide is opened at the position where the fixed guide plate connects with the movable slider.

[0010] In one alternative embodiment, the collection component includes: A slag collection frame is fixedly connected to the top of another lifting plate. The slag collection frame is located below the laser cutting head. A transmission rod is rotatably connected inside the slag collection frame. A pushing scraper is slidably sleeved on the outer wall of the transmission rod. A protective sleeve is fixedly connected inside the slag collection frame. The transmission rod is located inside the protective sleeve. The pushing scraper is slidably sleeved on the outer wall of the protective sleeve. Multiple guide sliders are fixedly connected circumferentially at equal intervals on the inner wall of the pushing scraper. The outer walls of the multiple guide sliders are all hemispherical. A guide groove is opened at the position where the transmission rod connects with the guide slider for the guide slider to slide. A slag discharge pipe is integrally formed at the bottom of one side of the slag collection frame. The slag discharge pipe is located above the storage box. The pusher scraper is equipped with a second transmission component for driving the transmission rod to rotate.

[0011] In one alternative embodiment, the second transmission component includes: A third gear is located at one end of the material pushing scraper, below the air extraction pipe. The third gear is fixedly connected to the end shaft of the transmission rod. A second rack is meshed with the outer wall of the material pushing scraper. A connecting push rod is fixedly connected to the bottom end of the second rack. Two straight grooves are symmetrically opened on the outer wall of the connecting push rod. A limiting sleeve groove for sliding of the connecting push rod and the straight groove is opened at the junction of the other lifting plate and the connecting push rod. A limiting retaining ring is fixedly connected to the outer wall of the connecting push rod. A spring is sleeved on the outer wall of the connecting push rod. One end of the spring contacts the outer wall of the limiting retaining ring, and the other end of the spring contacts the outer wall of the other lifting plate.

[0012] In one alternative embodiment, the conveying mechanism includes: A rotating component mounted on the support frame; The rotating assembly includes: A fourth gear is rotatably connected inside the support frame. An annular turntable is provided below the fourth gear. The support frame is sleeved on the outer wall of the annular turntable. The annular turntable is rotatably connected to the support frame. A toothed ring is fixedly connected to the outer wall of the annular turntable. The fourth gear meshes with the toothed ring. A first servo motor is installed at one end of the support frame. The fourth gear is driven by the output end of the first servo motor. The annular turntable is equipped with clamping components for clamping pipes of different specifications.

[0013] In one alternative embodiment, the clamping assembly includes: Multiple movable slide rods are circumferentially and equidistantly arranged at one end of an annular turntable. Each of the multiple movable slide rods extends to the outside of the other end of the annular turntable. A limiting groove is provided at the junction of the annular turntable and the movable slide rods to allow the movable slide rods to slide. Two second connecting seats are symmetrically and fixedly connected to the outer walls of each of the multiple movable slide rods. The annular turntable is located between the two second connecting seats. Two sets of limiting guide plates are provided between the two second connecting seats. Both sets of limiting guide plates are fixedly connected to the annular turntable. Each set of limiting guide plates has two plates. The second connecting seats are slidably sleeved on the outer walls of the two limiting guide plates. An auxiliary pressure roller is rotatably connected to the end of the second connecting seat near the pipe. The annular turntable is equipped with a third transmission component for driving multiple movable slide bars to move. The support frame is equipped with a pushing component for stable movement of the pipe.

[0014] In one alternative embodiment, the third transmission assembly includes: A sixth gear is rotatably connected inside the annular turntable. A second servo motor is installed at one end of the annular turntable. The sixth gear is driven by the output end of the second servo motor. A fifth gear is meshed with the outer wall of the sixth gear. The fifth gear is rotatably connected to the annular turntable. The fifth gear is sleeved on the outer wall of multiple movable slide rods. An arc-shaped groove is provided at the position where the fifth gear connects with the movable slide rods for the movable slide rods to slide.

[0015] In one alternative embodiment, the push component includes: A first connecting seat is disposed inside the support frame. The first connecting seat is fixedly connected to a second connecting seat. A conveyor wheel is rotatably connected inside the bottom end of the first connecting seat. A drive motor is installed on one side of the first connecting seat. The conveyor wheel is driven by the output end of the drive motor. An infrared emitter is disposed outside one end of the support frame. The infrared emitter is fixedly connected to another second connecting seat. An infrared receiver is disposed below the infrared emitter. The infrared receiver is fixedly connected to the support base plate.

[0016] In one alternative: a hydraulic push rod is installed at the top of the support frame; one of the lifting plates is fixedly connected to the output end of the hydraulic push rod; two sets of extrusion rollers are symmetrically arranged between the two lifting plates; the two sets of extrusion rollers are located at both ends of the laser cutting head; each set of extrusion rollers has two rollers; the two extrusion rollers are respectively installed on the two lifting plates; and two jet heads are symmetrically fixedly connected to the bottom end of one of the lifting plates; the two jet heads are located on both sides of the laser cutting head.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, through a support mechanism, enables the support wheels to synchronously and adaptively lift and lower, ensuring smooth and precise lifting and support movements. This suppresses deviation, swaying, and vibration during pipe cutting, reducing laser cutting errors. The mechanism can work in conjunction with the conveying mechanism to securely lock the pipe position during the cutting stage. During the unloading stage, the inclined guide seat completes the automatic unloading of finished products. It can also be linked with the waste collection component to uniformly collect and process waste, improving the continuity and automation level of aluminum alloy guardrail pipe cutting operations, reducing manual intervention costs, and meeting the needs of large-scale cutting production of multiple specifications of pipes.

[0018] 2. This invention, through its conveying mechanism, enables the auxiliary pressure roller and the conveying roller to adaptively conform to the outer wall of pipes of different diameters, automatically correcting the central axis of the pipe and ensuring coaxial consistency of the conveying and cutting processes. This overcomes the shortcomings of traditional equipment, such as poor adaptability and large positioning deviations. It can automatically center and clamp, precisely feed, detect excess material, and adapt to rotary cutting for aluminum alloy guardrail pipes of different specifications. Simultaneously, relying on a drive motor to drive the conveying roller for frictional feeding, and with the help of an infrared detection component to monitor the feeding stroke and material excess in real time, it avoids problems of insufficient or excessive feeding, ensuring a smooth cutting process. Furthermore, the conveying mechanism, linked to a rotating component, drives the pipe to rotate at a uniform speed, precisely matching the laser cutting head's point-cutting, achieving high-quality circumferential cutting of the pipe, effectively enhancing feeding stability, cutting accuracy, and production efficiency, and comprehensively improving the automation performance of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the internal structure of the support frame of the present invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of the annular turntable of the present invention.

[0022] Figure 4 This is a schematic diagram of the connection structure between the movable slide bar and the second connecting seat of the present invention.

[0023] Figure 5This is a schematic diagram of the connection structure between the first rack and the second gear of the present invention.

[0024] Figure 6 This is a schematic diagram of the jet head structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the internal structure of the slag collection frame of the present invention.

[0026] Figure 8 This is a schematic diagram of the connection structure between the third gear and the transmission rod of the present invention.

[0027] Figure 9 This is a schematic diagram of the internal structure of the support base plate of the present invention.

[0028] Figure 10 For the present invention Figure 7 A magnified schematic diagram of the structure at point A in the diagram.

[0029] Figure reference numerals: 1. Support base plate; 201. Pushing scraper; 202. First connecting rotating plate; 203. First gear; 204. Fixed guide plate; 205. First rack; 206. Second gear; 207. Connecting push block; 208. Third gear; 209. Second rack; 2010. Spring; 2011. Limiting retaining ring; 2012. Connecting push rod; 2013. Second connecting rotating plate; 2014. Transmission rotating rod; 2015. Protective sleeve; 2016. Connecting push plate; 2017. Slag collection frame; 2018. Moving slider; 2019. Third rack; 2020. Fixed 1. Guide seat; 2021. Guide slider; 301. Fourth gear; 302. Gear ring; 303. Annular turntable; 304. Moving slide bar; 305. First connecting seat; 306. Fifth gear; 307. Sixth gear; 308. First servo motor; 309. Infrared transmitter; 3010. Second connecting seat; 3011. Limiting guide plate; 3012. Second servo motor; 3013. Infrared receiver; 4. Storage box; 5. Lifting base; 6. Air extraction pipe; 7. Support frame; 8. Lifting plate; 9. Jet nozzle; 10. Hydraulic push rod; 11. Laser cutting head; 12. Support wheel. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] In one embodiment, such as Figures 1-10As shown, a laser cutting device for producing aluminum alloy guardrails includes a support base plate 1, a support frame 7 mounted on the top of the support base plate 1, two lifting plates 8 symmetrically slidably connected inside the support frame 7, an air extraction pipe 6 and a laser cutting head 11 mounted on the bottom of one lifting plate 8, the air extraction pipe 6 being located on one side of the laser cutting head 11, a storage box 4 being provided on one side of the support frame 7, the storage box 4 extending into the interior of the support frame 7, multiple support wheels 12 being longitudinally and equidistantly arranged at one end of the support frame 7, lifting bases 5 being rotatably connected to the outer walls of the multiple support wheels 12, a hydraulic push rod 10 mounted on the top of the support frame 7, one lifting plate 8 being fixedly connected to the output end of the hydraulic push rod 10, and two sets of extrusion rollers symmetrically arranged between the two lifting plates 8, the two sets of extrusion rollers being located on the laser cutting head 11 respectively. At both ends of 1, each set of extrusion wheels is provided with two, and the two extrusion wheels are respectively installed on two lifting plates 8. Two jet heads 9 are symmetrically fixedly connected to the bottom end of one lifting plate 8. The two jet heads 9 are respectively located on both sides of the laser cutting head 11. The output end of the suction pipe 6 is fixedly connected to the first air inlet end of the venturi tube through the first air supply pipe. The second air inlet end of the venturi tube is fixedly connected to the output end of the first air pump. The exhaust end of the venturi tube is fixedly connected to the air inlet pipe of the flue gas treatment component through the second air supply pipe. The input ends of the two jet heads 9 are fixedly connected to the output end of the second air pump through the third air supply pipe. The input end of the second air pump is fixedly connected to the output end of the inert gas storage tank through the connecting pipe. The support base plate 1 is provided with a support mechanism for auxiliary support of pipes of different specifications. The support mechanism includes: a third rack 2019 slidably connected inside the support base plate 1; a connecting push plate 2016 fixedly connected to the bottom ends of the lifting base 5 and another lifting plate 8; a first gear 203 arranged below the connecting push plate 2016; the first gear 203 meshing with the third rack 2019; the first gear 203 rotatably connected to the support base plate 1; and two first connecting rotating plates 202 symmetrically arranged on the outer side of the first gear 203. Both first connecting rotating plates 202 mesh with the first rack 2019. The end shaft of the wheel 203 is fixedly connected. The first connecting rotating plate 202 is rotatably connected to the side away from the first gear 203 by the second connecting rotating plate 2013. The second connecting rotating plate 2013 is rotatably connected to the connecting push plate 2016. The top of the support base plate 1 is longitudinally and equidistantly fixedly connected to multiple fixed guide seats 2020. The multiple fixed guide seats 2020 and multiple support wheels 12 are interlaced. The upper surface of the multiple fixed guide seats 2020 is inclined. A storage rack for storing pipes is provided on one side of the support base plate 1. The support frame 7 is equipped with a conveying mechanism for the stable conveying of pipes of different specifications; In this embodiment, it should be noted that the laser cutting head 11 uses the collimating lens and focusing lens of the optical focusing system to focus the laser beam into a micron-sized high-energy spot to melt the material, and then uses high-pressure auxiliary gas to blow away the slag to form a smooth cut. In use, the conveying mechanism drives the gear set to make the conveying wheel and multiple auxiliary pressure rollers move synchronously towards the center until they are evenly attached to the outer wall of the pipe. This allows pipes of different specifications to be automatically positioned on the central axis, effectively ensuring the coaxiality of the conveying. Subsequently, the power component drives the wheel to rub and convey the pipe. The infrared detection component monitors the remaining amount of pipe in real time, determines whether the material is sufficient, and controls the feeding stroke.

[0032] After the pipe reaches the set cutting position, the hydraulic push rod 10 drives the two lifting plates 8 to press down and lock the pipe, while the support wheel 12 lifts and supports the pipe. The dual structure achieves stable positioning of the pipe and avoids cutting sway deviation. The positioning action triggers the scraping mechanism to start and stop, and completes the temporary collection of cutting waste.

[0033] After positioning, the rotary drive component drives the pipe to rotate circumferentially, and the laser cutting head 11 emits light synchronously to complete the pipe circumferential cutting at a uniform speed. The matching air circuit system uses Venturi negative pressure to suck up the cutting fumes and dust, while spraying inert gas to blow away slag, prevent oxidation, and protect the cutting surface. The waste gas and waste residue are collected and treated separately to optimize the cutting conditions.

[0034] After a single section of pipe is cut, the positioning and clamping structure is released and reset in sequence, the conveying mechanism is restarted to push the material, and the finished pipe automatically slides down the inclined guide structure to be discharged and collected; the waste residue is collected and scraped out at the same time, and all components of the device return to their initial state, and the pipe cutting process is repeated. In one embodiment, such as Figures 2-5 As shown, the support mechanism also includes: a first transmission component disposed on the support frame 7; The first transmission assembly includes: two second gears 206 symmetrically rotatably connected inside the support frame 7; two first racks 205 symmetrically meshed with the outer walls of the two second gears 206; two connecting push blocks 207 symmetrically fixedly connected to the outer walls of the two lifting plates 8; the first racks 205 and the connecting push blocks 207 are fixedly connected; the first racks 205 and the connecting push blocks 207 are slidably connected to the support frame 7; through the mutual cooperation of the second gears 206, the two first racks 205 and the connecting push blocks 207, the two lifting plates 8 can move in opposite directions. The lifting base 5 is provided with a limiting component for limiting the lifting of the lifting base 5; Another lifting plate 8 is equipped with a collection component for collecting and discharging waste residue; In one embodiment, such as Figures 1-9As shown, the limiting component includes: two fixed guide plates 204 symmetrically arranged on the outside of the lifting base 5, both fixed guide plates 204 are fixedly connected to the supporting base plate 1, and two sets of movable sliders 2018 are symmetrically fixedly connected to the outer wall of the lifting base 5. The two fixed guide plates 204 are respectively sleeved on the outer wall of the two sets of movable sliders 2018. Each set of movable sliders 2018 is provided with two. A lifting groove is provided at the contact position between the fixed guide plate 204 and the movable slider 2018 for the movable slider 2018 to slide. Through the cooperation of the fixed guide plate 204, the movable slider 2018 and the lifting groove, the lifting limit of the lifting base 5 can be realized. In one embodiment, such as Figures 1-10 As shown, the collection assembly includes: a slag collection frame 2017 fixedly connected to the top of another lifting plate 8, the slag collection frame 2017 being located below the laser cutting head 11, a transmission rod 2014 rotatably connected inside the slag collection frame 2017, a pusher scraper 201 slidably sleeved on the outer wall of the transmission rod 2014, a protective sleeve 2015 fixedly connected inside the slag collection frame 2017, the transmission rod 2014 being located inside the protective sleeve 2015, the pusher scraper 201 slidably sleeved on the outer wall of the protective sleeve 2015, a plurality of guide sliders 2021 being fixedly connected circumferentially at equal intervals on the inner wall of the pusher scraper 201, the outer walls of the plurality of guide sliders 2021 being hemispherical, a guide groove for the guide sliders 2021 to slide at the junction of the transmission rod 2014 and the guide sliders 2021, and a slag discharge pipe integrally formed on one side bottom end of the slag collection frame 2017, the slag discharge pipe being located above the storage box 4; The pusher scraper 201 is provided with a second transmission assembly for driving the transmission rod 2014 to rotate. The second transmission assembly includes: a third gear 208 disposed at one end of the pusher scraper 201, the third gear 208 being located below the suction pipe 6, the third gear 208 being fixedly connected to the end shaft of the transmission rod 2014, a second rack 209 being meshed with the outer wall of the pusher scraper 201, a connecting push rod 2012 being fixedly connected to the bottom end of the second rack 209, two straight grooves being symmetrically opened on the outer wall of the connecting push rod 2012, and a connecting push rod 2012 and the straight grooves being provided at the junction of another lifting plate 8 and the connecting push rod 2012 and the straight grooves. The sliding limiting sleeve groove is connected to the outer wall of the connecting push rod 2012 with a limiting stop ring 2011. A spring 2010 is sleeved on the outer wall of the connecting push rod 2012. One end of the spring 2010 contacts the outer wall of the limiting stop ring 2011, and the other end of the spring 2010 contacts the outer wall of another lifting plate 8. Through the cooperation of the collecting component and the second transmission component, the waste residue generated by cutting can be collected, and when the pipe is transported, the waste residue is pushed into the inner cavity of the storage box 4, so that the waste residue generated by multiple cuttings can be centrally processed. In one embodiment, such as Figures 2-4 As shown, the conveying mechanism includes a rotating assembly mounted on the support frame 7; The rotating assembly includes: a fourth gear 301 rotatably connected inside the support frame 7; an annular turntable 303 is provided below the fourth gear 301; the support frame 7 is sleeved on the outer wall of the annular turntable 303; the annular turntable 303 is rotatably connected to the support frame 7; a gear ring 302 is fixedly connected to the outer wall of the annular turntable 303; the fourth gear 301 is meshed with the gear ring 302; a first servo motor 308 is installed at one end of the support frame 7; and the fourth gear 301 is driven by the output end of the first servo motor 308. The annular turntable 303 is equipped with clamping components for clamping pipes of different specifications. The clamping assembly includes: multiple movable slide rods 304 circumferentially and equidistantly arranged at one end of an annular turntable 303, all of which extend to the outside of the other end of the annular turntable 303; a limiting groove for sliding of the movable slide rods 304 is provided at the junction of the annular turntable 303 and the movable slide rods 304; two second connecting seats 3010 are symmetrically and fixedly connected to the outer walls of the multiple movable slide rods 304; the annular turntable 303 is located between the two second connecting seats 3010; two sets of limiting guide plates 3011 are provided between the two second connecting seats 3010; both sets of limiting guide plates 3011 are fixedly connected to the annular turntable 303; two limiting guide plates 3011 are provided in each set; the second connecting seats 3010 are slidably sleeved on the outer walls of the two limiting guide plates 3011; and an auxiliary pressure roller is rotatably connected to the end of the second connecting seat 3010 near the pipe. The annular turntable 303 is equipped with a third transmission assembly for driving multiple movable slide bars 304 to move. The support frame 7 is equipped with a pushing component for stable movement of the pipe; The third transmission component includes: a sixth gear 307 rotatably connected inside the annular turntable 303; a second servo motor 3012 is installed at one end of the annular turntable 303; the sixth gear 307 is driven by the output end of the second servo motor 3012; a fifth gear 306 is meshed with the outer wall of the sixth gear 307; the fifth gear 306 is rotatably connected to the annular turntable 303; the fifth gear 306 is sleeved on the outer wall of multiple movable slide rods 304; an arc-shaped groove is provided at the contact position between the fifth gear 306 and the movable slide rod 304 for the movable slide rod 304 to slide; through the mutual cooperation of the rotating component, the clamping component and the second transmission component, pipes of different specifications can be clamped in the center and the pipes can be driven to reciprocate and rotate, thereby cooperating with the laser cutting head 11 to cut the pipes; In one embodiment, such as Figures 2-4As shown, the pushing component includes: a first connecting seat 305 disposed inside the support frame 7, the first connecting seat 305 being fixedly connected to a second connecting seat 3010, a conveying wheel being rotatably connected to the bottom end of the first connecting seat 305, a drive motor being installed on one side of the first connecting seat 305, the conveying wheel being driven by the output end of the drive motor, an infrared emitter 309 disposed outside one end of the support frame 7, the infrared emitter 309 being fixedly connected to another second connecting seat 3010, an infrared receiver 3013 disposed below the infrared emitter 309, the infrared receiver 3013 being fixedly connected to the support base plate 1, through the cooperation of the conveying wheel and the drive motor, pipes of different specifications can be stably conveyed, and through the cooperation of the infrared emitter 309 and the infrared receiver 3013, the length of the pipe can be detected in real time.

[0035] The above embodiment discloses a laser cutting device for the production of aluminum alloy guardrails. In use, one end of the tube to be cut is inserted through the opening on the annular turntable 303, passing from one end of the support frame 7 to the outside of the other end of the support frame 7. Then, the second servo motor 3012 is activated to drive the sixth gear 307 to rotate. At this time, the fifth gear 306 rotates along the inner wall of the annular turntable 303 under the meshing drive of the sixth gear 307, and presses against the outer wall of the moving slide rod 304 through the arc-shaped groove. Simultaneously, the moving slide rod 304... Under the squeezing and pushing of the fifth gear 306, it slides along the inner wall of the limiting slide groove. At this time, the second connecting seat 3010 slides along the outer wall of the limiting guide plate 3011 under the drive of the moving slide rod 304. At the same time, the first connecting seat 305 drives the conveying wheel to move synchronously under the drive of the second connecting seat 3010. When the auxiliary pressure wheel contacts the outer wall of the pipe under the push of the second connecting seat 3010, the conveying wheel contacts the outer wall of the pipe synchronously under the drive of the first connecting seat 305. This can achieve the purpose of clamping and centering the pipe. Then, the drive motor is started to drive the conveyor wheel to rotate. At this time, the pipe is displaced by the friction of the conveyor wheel, and the auxiliary pressure roller rotates synchronously by the friction of the pipe, so as to push the pipe stably. During this process, the infrared transmitter 309 and the infrared receiver 3013 are started to monitor the pipe. When the infrared light emitted by the infrared transmitter 309 is blocked by the pipe and the infrared receiver 3013 cannot receive the infrared light, it means that the pipe still has a certain length. When the end of the pipe passes the infrared detection position and the infrared receiver 3013 receives the infrared light, it means that the pipe is not long enough and a new pipe needs to be replaced for cutting and processing. It is important to note that since the annular turntable 303 can reciprocate, it ensures that the infrared transmitter 309 is directly above the infrared receiver 3013 when transporting the pipe. This allows the infrared receiver 3013 to receive the infrared rays emitted by the infrared transmitter 309 when the pipe is not long enough. When the pipe is pushed to the specified length, the drive motor is stopped and the hydraulic push rod 10 is activated to push a lifting plate 8 to descend stably. At the same time, a first rack 205, driven by a connecting push block 207, drives a second gear 206 to rotate through meshing with a lifting plate 8. Meanwhile, another first rack 205, driven by the meshing of the second gear 206, drives another lifting plate 8 to slide upward along the inner wall of the support frame 7 through the connecting push block 207 until the extrusion wheels on both lifting plates 8 are in contact with the outer wall of the pipe, thereby extruding and positioning the pipe. During this process, a connecting push plate 2016, driven by another lifting plate 8, drives the second connecting rotating plate 2013 to rise synchronously. At this time, the first connecting rotating plate 202, driven by the second connecting rotating plate 2013, drives the first gear 203 to rotate synchronously. Meanwhile, the third rack 2019, driven by the meshing of a first gear 203, drives the other first gears 203 to rotate synchronously. Through the cooperation of the first connecting rotating plate 202, the second connecting rotating plate 2013, and the connecting push plate 2016, the lifting base 5, pushed by the connecting push plate 2016, slides and rises along the inner wall of the fixed guide plate 204 via the moving slider 2018. At the same time, the support wheel 12, pushed by the lifting base 5, contacts the outer wall of the pipe, thereby providing auxiliary support for the pipe. Simultaneously, during the ascent of another lifting plate 8, the spring 2010 rebounds and pushes the limit stop ring 2011, causing the connecting push rod 2012 to stop. At this time, the second rack 209, driven by the connecting push rod 2012, meshes with the third gear 208 to rotate. At the same time, the transmission rod 2014 rotates under the drive of the third gear 208, and presses against the outer wall of the guide slider 2021 through the guide groove. At this time, the guide slider 2021, under the pressure of the inner wall of the guide groove, drives the pushing scraper. 201 slides along the outer wall of the protective sleeve 2015. When the pushing scraper 201 contacts the inner wall of one side of the slag collection frame 2017, the third gear 208 stops rotating. At the same time, the connecting push rod 2012 and the second rack 209, driven by another lifting plate 8, drive the limit ring 2011 to rise synchronously. The connecting push rod 2012 separates from the upper surface of the support base plate 1, so that the pushing scraper 201 can automatically reset. Under normal conditions, the connecting push rod 2012 is in contact with the upper surface of the support base plate 1. Then, the first servo motor 308 is started to drive the fourth gear 301 to rotate. At this time, the gear ring 302, driven by the meshing of the fourth gear 301, drives the annular turntable 303 to reciprocate. Simultaneously, the second connecting seat 3010, driven by the annular turntable 303, drives the pipe to rotate through the auxiliary pressure roller, and the extrusion roller rotates under the friction of the pipe. At this time, the laser cutting head 11 is started to perform laser cutting on the pipe. During this process, the first air pump is started to deliver high-speed airflow to the Venturi tube to form negative pressure. At this time, the Venturi effect is achieved. The system allows the extraction pipe 6 to extract the fumes generated during cutting and to draw them into the venturi tube via the first gas supply pipe. At this time, the fumes are then transported to the fumes treatment component via the second gas supply pipe. Simultaneously, the second gas pump is activated to extract inert gas from the inert gas storage tank via the connecting pipe and to spray it onto the cutting part of the pipe via the third gas supply pipe and the jet nozzle 9. This effectively reduces the waste generated during cutting. Meanwhile, some of the waste generated falls into the slag collection frame 2017 under the influence of the inert gas, thus facilitating the collection of waste. After the pipe cutting is completed, the hydraulic push rod 10 is activated to raise a lifting plate 8 a certain distance and then stop. This releases the clamping and positioning of the two pipes before and after cutting by the extrusion rollers. Through transmission, multiple lifting bases 5 drive the support wheels 12 to descend synchronously. At this time, the drive motor is activated to drive the conveyor rollers to push the pipe to be cut. Simultaneously, the cut pipe is pushed completely to the outside of one end of the support frame 7 by the push of the pipe to be cut. Then, the hydraulic push rod 10 is activated to raise a lifting plate 8 to reset. The above operation is then reversed. During this process, the cut pipe is driven to descend steadily by the support wheel 12. When the cut pipe comes into contact with the upper surface of the fixed guide seat 2020, the cut pipe can be guided to the outside of the support base plate 1 by the inclined outer wall of the fixed guide seat 2020. The cut pipe can then be stored in the storage rack. At the same time, the waste inside the slag collection frame 2017 is pushed by the scraping wall of the pusher scraper 201 and discharged into the storage box 4 through the slag discharge pipe. The above operation is repeated to achieve the purpose of convenient cutting and unloading of the pipe.

[0036] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A laser cutting device for producing aluminum alloy guardrails, comprising a supporting base plate (1), a supporting frame (7) installed at the top of the supporting base plate (1), two lifting plates (8) symmetrically slidably connected inside the supporting frame (7), an air extraction pipe (6) and a laser cutting head (11) installed at the bottom end of one of the lifting plates (8), the air extraction pipe (6) being located on one side of the laser cutting head (11), a storage box (4) being provided on one side of the supporting frame (7), the storage box (4) penetrating into the interior of the supporting frame (7), and a plurality of supporting wheels (12) being longitudinally and equidistantly arranged at one end of the supporting frame (7), the outer walls of the plurality of supporting wheels (12) being rotatably connected to lifting bases (5), characterized in that, The support base plate (1) is provided with a support mechanism for auxiliary support of pipes of different specifications; The support mechanism includes: a third rack (2019) slidably connected inside the support base plate (1); a connecting push plate (2016) fixedly connected to the bottom end of the lifting base (5) and another lifting plate (8); a first gear (203) is provided below the connecting push plate (2016); the first gear (203) meshes with the third rack (2019); the first gear (203) is rotatably connected to the support base plate (1); and two first connecting rotating plates (202) are symmetrically arranged on the outer side of the first gear (203). The first connecting plate (202) is fixedly connected to the end shaft of the first gear (203). The first connecting plate (202) is rotatably connected to the side away from the first gear (203) by the second connecting plate (2013). The second connecting plate (2013) is rotatably connected to the connecting push plate (2016). The top of the support base plate (1) is longitudinally and equidistantly fixedly connected to multiple fixed guide seats (2020). The multiple fixed guide seats (2020) are interleaved with multiple support wheels (12). The upper surface of the multiple fixed guide seats (2020) is inclined. The support mechanism further includes: a first transmission component disposed on the support frame (7); The first transmission assembly includes: two second gears (206) symmetrically rotatably connected inside the support frame (7), two first racks (205) symmetrically meshing with the outer walls of the two second gears (206), two connecting push blocks (207) symmetrically fixedly connected to the outer walls of the two lifting plates (8), the first racks (205) and the connecting push blocks (207) being fixedly connected, and the first racks (205) and the connecting push blocks (207) being slidably connected to the support frame (7); The support frame (7) is provided with a conveying mechanism for the stable conveying of pipes of different specifications.

2. The laser cutting device for producing aluminum alloy guardrails according to claim 1, characterized in that, The lifting base (5) is provided with a limiting component for limiting the lifting of the lifting base (5); The limiting component includes: two fixed guide plates (204) symmetrically arranged on the outside of the lifting base (5), both fixed guide plates (204) are fixedly connected to the supporting base plate (1), and two sets of movable sliders (2018) are symmetrically fixedly connected to the outer wall of the lifting base (5). The two fixed guide plates (204) are respectively sleeved on the outer wall of the two sets of movable sliders (2018). Each set of movable sliders (2018) has two sliders. A lifting groove for the movable sliders (2018) to slide is opened at the position where the fixed guide plate (204) and the movable slider (2018) meet.

3. The laser cutting device for producing aluminum alloy guardrails according to claim 2, characterized in that, Another lifting plate (8) is provided with a collection assembly for collecting and discharging waste residue; the collection assembly includes: a slag collection frame (2017) fixedly connected to the top of the other lifting plate (8), the slag collection frame (2017) being located below the laser cutting head (11), a transmission rod (2014) being rotatably connected inside the slag collection frame (2017), a pusher scraper (201) being slidably sleeved on the outer wall of the transmission rod (2014), a protective sleeve (2015) being fixedly connected inside the slag collection frame (2017), and the transmission rod (2014) being positioned... Inside the protective sleeve (2015), the pusher scraper (201) is slidably sleeved on the outer wall of the protective sleeve (2015). Multiple guide sliders (2021) are fixedly connected circumferentially at equal intervals on the inner wall of the pusher scraper (201). The outer walls of the multiple guide sliders (2021) are all hemispherical. A guide groove for the guide sliders (2021) to slide is provided at the position where the transmission rod (2014) connects with the guide sliders (2021). A slag discharge pipe is integrally formed on one bottom side of the slag collection frame (2017). The slag discharge pipe is located above the storage box (4).

4. The laser cutting device for producing aluminum alloy guardrails according to claim 3, characterized in that, The pusher scraper (201) is provided with a second transmission assembly for driving the transmission rod (2014) to rotate. The second transmission assembly includes: a third gear (208) disposed at one end of the pusher scraper (201), the third gear (208) being located below the air extraction pipe (6), the third gear (208) being fixedly connected to the end shaft of the transmission rod (2014), a second rack (209) being meshed with the outer wall of the pusher scraper (201), and a connecting push rod (2012) being fixedly connected to the bottom end of the second rack (209). Two straight grooves are symmetrically opened on the outer wall of 12). Another lifting plate (8) is provided with a limiting sleeve groove at the junction of the connecting push rod (2012) and the straight groove for the connecting push rod (2012) and the straight groove to slide. A limiting ring (2011) is fixedly connected to the outer wall of the connecting push rod (2012). A spring (2010) is sleeved on the outer wall of the connecting push rod (2012). One end of the spring (2010) is in contact with the outer wall of the limiting ring (2011), and the other end of the spring (2010) is in contact with the outer wall of the other lifting plate (8).

5. A laser cutting device for producing aluminum alloy guardrails according to claim 1, characterized in that, The conveying mechanism includes: a rotating component disposed on the support frame (7); The rotating assembly includes: a fourth gear (301) rotatably connected inside the support frame (7), an annular turntable (303) disposed below the fourth gear (301), the support frame (7) being sleeved on the outer wall of the annular turntable (303), the annular turntable (303) being rotatably connected to the support frame (7), a gear ring (302) being fixedly connected to the outer wall of the annular turntable (303), the fourth gear (301) being meshed with the gear ring (302), a first servo motor (308) being installed at one end of the support frame (7), and the fourth gear (301) being driven by the output end of the first servo motor (308).

6. A laser cutting device for producing aluminum alloy guardrails according to claim 5, characterized in that, The annular turntable (303) is provided with a clamping assembly for clamping pipes of different specifications; the clamping assembly includes: a plurality of movable slide rods (304) circumferentially and equidistantly arranged at one end of the annular turntable (303), all of the movable slide rods (304) extending to the outside of the other end of the annular turntable (303), a limiting groove for sliding of the movable slide rods (304) is provided at the contact position between the annular turntable (303) and the movable slide rods (304), and two second connections are symmetrically fixed to the outer walls of the plurality of movable slide rods (304). The seat (3010) and the annular turntable (303) are located between the two second connecting seats (3010). Two sets of limiting guide plates (3011) are provided between the two second connecting seats (3010). Both sets of limiting guide plates (3011) are fixedly connected to the annular turntable (303). Each set of limiting guide plates (3011) has two plates. The second connecting seat (3010) is slidably sleeved on the outer wall of the two limiting guide plates (3011). An auxiliary pressure roller is rotatably connected to the end of the second connecting seat (3010) near the pipe.

7. A laser cutting device for producing aluminum alloy guardrails according to claim 6, characterized in that, The annular turntable (303) is provided with a third transmission assembly for driving multiple movable slide rods (304) to move; the third transmission assembly includes: a sixth gear (307) rotatably connected inside the annular turntable (303), a second servo motor (3012) is installed at one end of the annular turntable (303), the sixth gear (307) is driven by the output end of the second servo motor (3012), a fifth gear (306) is meshed with the outer wall of the sixth gear (307), the fifth gear (306) is rotatably connected to the annular turntable (303), the fifth gear (306) is sleeved on the outer wall of multiple movable slide rods (304), and an arc-shaped groove for the movable slide rods (304) to slide is opened at the contact position between the fifth gear (306) and the movable slide rods (304).

8. A laser cutting device for producing aluminum alloy guardrails according to claim 6, characterized in that, The support frame (7) is provided with a pushing component for stable movement of the pipe. The pushing component includes: a first connecting seat (305) disposed inside the support frame (7), the first connecting seat (305) being fixedly connected to a second connecting seat (3010), a conveying wheel being rotatably connected inside the bottom end of the first connecting seat (305), a drive motor being installed on one side of the first connecting seat (305), the conveying wheel being driven by the output end of the drive motor, an infrared emitter (309) disposed outside one end of the support frame (7), the infrared emitter (309) being fixedly connected to another second connecting seat (3010), an infrared receiver (3013) disposed below the infrared emitter (309), and the infrared receiver (3013) being fixedly connected to the support base plate (1).

9. A laser cutting device for producing aluminum alloy guardrails according to claim 1, characterized in that, A hydraulic push rod (10) is installed at the top of the support frame (7). One of the lifting plates (8) is fixedly connected to the output end of the hydraulic push rod (10). Two sets of extrusion wheels are symmetrically arranged between the two lifting plates (8). The two sets of extrusion wheels are located at both ends of the laser cutting head (11). Each set of extrusion wheels has two parts. The two extrusion wheels are installed on the two lifting plates (8). Two jet heads (9) are symmetrically fixedly connected to the bottom end of one of the lifting plates (8). The two jet heads (9) are located on both sides of the laser cutting head (11).

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