A laser cutting machine for metal guardrail processing

Abstract

The application discloses a kind of laser material cutting machines for metal guardrail processing, it is related to metal guardrail processing technical field, including base assembly, feeding assembly and material cutting assembly, the top outer end of base assembly is placed with feeding assembly, the feeding assembly includes first fixed seat, the outer end of first fixed seat is placed with first motor, and the output end of first motor is placed with driving gear.The application realizes the non-tail material circulation feeding of bar material forward movement when pushing material, in-place retention when resetting by the ingenious cooperation of differential propulsion and alternate clamping, the design greatly shortens the length of tail material, significantly improves material utilization, while the second positioning assembly always adheres to the surface of bar material during the pushing process, plays the role of intermediate auxiliary support, cooperates with the discharge seat of material seat and discharging assembly, forms multi-point support, effectively suppresses the bending deformation of long bar material due to its own weight, ensures the perpendicularity of cutting end face and feeding stability.

Description

Technical Field

[0001] This invention relates to the field of metal railing processing technology, specifically to a laser cutting machine for metal railing processing. Background Technology

[0002] In the production and processing of metal railings, long strip metal bars are usually cut to a fixed length. Laser cutting technology, due to its advantages such as high cutting accuracy, good cross-sectional quality, and small heat-affected zone, has gradually replaced traditional sawing or punching methods and become an important process for metal railing processing.

[0003] Currently, most existing laser cutting equipment for metal bars uses a single-clamp reciprocating feeding mechanism. This involves clamping the bar with a clamping device, pushing it forward to a predetermined length by a drive device, and then the laser cutting head cuts it. After one cut, the clamping device releases and returns to its original position, then clamps the bar again for the next feeding cycle. This feeding method has the following shortcomings in practical applications: First, there is serious material waste. Every time the feeding mechanism resets, the bar stock tends to move backward after the clamping device is released, causing the front end of the bar stock to shift. In order to ensure that the last section of the bar stock can be effectively cut, a long allowance must be reserved at the tail end, resulting in low material utilization and increased production costs.

[0004] Secondly, the feeding stability of long bars is poor. For metal guardrail bars with large lengths, the extended part of the bar is prone to sagging and deformation due to its own gravity during the cantilever feeding process, which causes the bar axis to bend. This not only affects the straightness of the feeding, but also causes the laser cutting section to tilt, reducing the cutting accuracy and product quality.

[0005] Third, the quality inspection process for bar stock is cumbersome. The surface quality of metal bars (such as bending, unevenness, diameter deviation, etc.) directly affects the pass rate of the finished guardrail. In the existing technology, bar stock quality inspection usually adopts independent offline inspection equipment, such as eddy current flaw detectors or laser diameter gauges. This not only increases the equipment cost and inspection process, but also cannot be completed simultaneously during the cutting process, which can easily lead to unqualified products entering the subsequent processing stage, resulting in further waste. Although some online inspection solutions use non-contact sensors, they are easily interfered with by oil stains and oxide scale on the surface of the bar stock, resulting in a high false alarm rate.

[0006] Fourth, length positioning and unloading operations are inconvenient. Traditional length positioning often uses mechanical blocks or photoelectric sensors. Each time the guardrail specifications are changed, the position of the blocks needs to be moved manually. The calibration process is cumbersome and the accuracy is easily affected by equipment vibration. The unloading process often uses cylinder pushing or manual material picking, which can easily scratch the surface of the workpiece or cause the finished parts to pile up messily. The degree of automation and reliability need to be improved.

[0007] In summary, given the technical problems of existing metal railing cutting equipment, such as waste of tail material, unstable feeding, delayed quality inspection, and inconvenient positioning and unloading, there is an urgent need to provide a laser cutting machine that can achieve efficient, precise, and low-loss processing. Summary of the Invention

[0008] The purpose of this invention is to provide a laser cutting machine for processing metal railings, so as to solve the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting machine for processing metal railings, comprising a base assembly, a feeding assembly, and a cutting assembly. The feeding assembly is mounted on the top outer end of the base assembly. The feeding assembly includes a first fixed seat, a first motor mounted on the outer end of the first fixed seat, and a drive gear mounted on the output end of the first motor. A first feeding bar is mounted on the top outer side of the drive gear, and first meshing teeth are provided on the upper and lower sides of the first feeding bar. Blocks are mounted on both outer ends of the first feeding bar. A first support seat is mounted on the top outer end of the base assembly, and a limit switch is provided on the inner side of the first support seat. The first support base has a second fixed base on its top inner side, and a first driven gear on its inner side. A second driven gear is installed at the output end of the first driven gear. A pusher assembly is installed at the top outer end of the base assembly. The pusher assembly includes a second support base. A driven shaft is installed at the outer end of the second support base. A first meshing gear and a second meshing gear are fixed at the outer end of the driven shaft. A second feeding bar is installed at the bottom outer end of the first meshing gear. A second meshing tooth is provided at the top outer end of the second feeding bar. A sliding groove is opened at the outer end of the second feeding bar. A sliding block is installed inside the sliding groove.

[0010] Furthermore, the base assembly includes a worktable, a material threading seat is disposed at the rear outer end of the worktable, and a first guide seat and a second guide seat are disposed at the outer end of the material threading seat. A first electrically controlled slide rail and a second electrically controlled slide rail are disposed at the top of the worktable, and a material discharge chute is provided inside the worktable.

[0011] Furthermore, a bar is inserted through the material feeding seat, the first guide seat is sleeved with the first meshing tooth, and the second guide seat is sleeved with the second feeding bar.

[0012] Furthermore, the first motor drives the drive gear to rotate, and the drive gear drives the first feed bar to move through the first meshing teeth. The first feed bar drives the first driven gear to rotate through the first meshing teeth, and the first driven gear drives the second driven gear to rotate.

[0013] Furthermore, the second driven gear meshes with the second meshing gear, and the second meshing gear drives the first meshing gear to rotate through the driven shaft, and the first meshing gear drives the second feed bar to move through the second meshing teeth.

[0014] Furthermore, the first feed bar and the blocking block are an integrated structure, and the limiting block blocks the blocking block to limit the first feed bar.

[0015] Furthermore, a first positioning component is fixed to the outer end of the sliding block, and a pressing button is installed at the outer end of the first positioning component. A second positioning component is fixed to the outer end of the first feeding strip. A feeding component is installed in the middle of the top of the worktable, and a cutting component is installed at the outer end of the top of the worktable. The first positioning component and the second positioning component have the same structure.

[0016] Furthermore, the first positioning component includes a positioning base, with an electric control base installed at both ends inside the positioning base, and a snap connector provided at the output end of the electric control base. Compression springs are installed at both ends outside the electric control base, and pressure sensors are installed at both ends outside the electric control base.

[0017] Furthermore, the feeding assembly includes a first displacement seat, an annular seat is disposed at the outer end of the first displacement seat, and a second motor is disposed at the outer end of the annular seat. A rotating seat is disposed at the output end of the second motor, and discharge seats are disposed at both outer ends of the rotating seat.

[0018] Furthermore, the material cutting assembly includes a second displacement seat, a third sliding rail is provided on the outside of the second displacement seat, and a third displacement seat is provided at the outer end of the third sliding rail, and a laser cutting head is mounted at the outer end of the third displacement seat.

[0019] This invention provides a laser cutting machine for processing metal railings, which has the following advantages: 1. This invention achieves differential movement between the first and second feeding bars through the gear transmission chain of the feeding and pushing components. In the prior art, metal bar cutting often uses single-clamp reciprocating feeding. Each time the clamp is released during resetting, the bar tends to move backward, causing the front end of the bar to shift. A long tail material must be reserved to complete the final cutting, resulting in serious material waste. Moreover, long bars sag due to their own weight during cantilever feeding, affecting cutting accuracy. This invention, through the ingenious combination of differential propulsion and alternating clamping, achieves bar forward movement during pushing and bar stationary during resetting, resulting in tailless cyclic feeding. This design greatly shortens the tail material length and significantly improves material utilization. At the same time, the second positioning component always fits against the bar surface during pushing, playing an intermediate auxiliary support role. Together with the material passer and the discharge seat of the unloading component, it forms multi-point support, effectively suppressing the bending deformation of long bars due to their own weight, ensuring the perpendicularity of the cutting end face and feeding stability.

[0020] 2. This invention incorporates an electrical control base, a clamping connector, a compression spring, and a pressure sensor in both the first and second positioning components. During the feeding process, the clamping connector of the second positioning component remains in contact with the surface of the bar stock, relying on the compression spring to provide constant contact pressure. When the bar stock surface has defects such as bending, unevenness, or diameter deviation, additional axial or radial frictional resistance is generated when the bar stock passes through the clamping connector of the second positioning component. This resistance causes the electrical control base inside the first positioning component to experience a reaction force, which in turn compresses the compression springs at both ends of its exterior. The compression amount of the compression spring is detected in real time by the pressure sensor. When the value detected by the pressure sensor exceeds the normal threshold, the equipment determines that the bar stock has a quality defect, issues an alarm signal, or stops subsequent cutting, thus achieving online quality inspection of the bar stock. In existing technologies, bar stock quality inspection typically employs independent offline inspection equipment, such as eddy current flaw detectors and laser diameter gauges. This not only increases equipment costs and process time but also cannot be completed simultaneously during the cutting process, leading to defective products entering subsequent processing and causing waste. Some online inspection solutions use non-contact sensors, but these are easily interfered with by oil stains and oxide scale on the bar stock surface, resulting in a high false alarm rate. This invention directly integrates the quality inspection function into the feeding and positioning structure. By utilizing the cooperation of a snap-fit ​​connector and an elastic element, online surface defect identification of the bar stock is achieved during the feeding process, eliminating the need for additional stations and sensors. This design ensures smooth feeding while enabling simultaneous feeding and inspection. Once an abnormality is detected, the machine can be stopped and an alarm can be triggered immediately, preventing defective products from entering the cutting process and reducing subsequent processing costs and scrap rates.

[0021] 3. In this invention, the center lines of all supporting structures—the feeding seat, the first guide seat, the second guide seat, the first positioning component, the second positioning component, and the annular seat and discharge seat of the feeding component—are aligned. This design provides multi-point, long-span linear support for the bar stock. The position of the first positioning component can be adjusted by moving the sliding block within the sliding groove. The first displacement seat of the feeding component and the second displacement seat of the cutting component can be independently adjusted via the first and second electrically controlled slide rails, respectively. When the first and second positioning components are engaged and the extrusion button is triggered, the first motor stops, and the length of the bar stock extending beyond the second positioning component is the preset standard length. In existing technologies, the length positioning of guardrail cutting machines often uses mechanical blocks or photoelectric sensors, which require additional steps each time the specifications are changed. Manually moving the stop is cumbersome to calibrate and its accuracy is easily affected by vibration. Unloading often involves pushing with a cylinder or manually picking up the material, which can easily scratch the workpiece surface or cause workpiece accumulation. This invention adjusts the initial position of the first positioning component by using a sliding block, and adjusts the cutting and unloading unit with an electrically controlled slide rail, realizing rapid digital switching of length specifications. Multiple concentrically distributed support points form an ultra-long guide channel, ensuring that the bar stock axis does not deviate even during high-speed feeding. In addition, the semi-enclosed flipping structure of the rotary discharge seat and the ring seat avoids scratching the workpiece surface caused by push-type unloading, and the finished product is always constrained during the flipping process and will not fall, achieving clean and reliable automatic discharge. At the same time, the discharge seat participates in support during the feeding stage, serving multiple purposes and simplifying the overall structure of the equipment. Attached Figure Description

[0022] Figure 1 Figure A shows the overall three-dimensional structure of a laser cutting machine for processing metal railings according to the present invention. Figure 2 Figure B shows the overall three-dimensional structure of a laser cutting machine for processing metal railings according to the present invention. Figure 3 This is a schematic diagram of the feeding assembly and pushing assembly of a laser cutting machine for processing metal railings according to the present invention. Figure 4 This is a schematic diagram of the blanking component structure of a laser cutting machine for processing metal railings according to the present invention; Figure 5 This is a schematic diagram of the feeding assembly structure of a laser cutting machine for processing metal railings according to the present invention; Figure 6 This is a schematic diagram of the material pushing component structure of a laser cutting machine for processing metal railings according to the present invention; Figure 7 This is a schematic diagram of the initial position of a laser cutting machine for processing metal railings according to the present invention; Figure 8 This is a schematic diagram of the discharge trough structure of a laser cutting machine for processing metal railings according to the present invention; Figure 9This is a schematic diagram of the first and second positioning components of a laser cutting machine for processing metal railings according to the present invention.

[0023] In the diagram: 1. Base assembly; 101. Workbench; 102. Material feeder; 103. First guide seat; 104. Second guide seat; 105. First electrically controlled slide rail; 106. Second electrically controlled slide rail; 107. Discharge chute; 2. Bar stock; 3. Feeding assembly; 301. First fixed seat; 302. First motor; 303. Drive gear; 304. First feed bar; 305. First meshing tooth; 306. Blocking block; 307. First support seat; 308. Limiting block; 309. Second fixed seat; 310. First driven gear; 311. Second driven gear; 4. Pushing assembly; 401. Second support seat; 402. Driven shaft; 403, First meshing gear; 404, Second meshing gear; 405, Second feeding bar; 406, Second meshing tooth; 407, Sliding groove; 408, Sliding block; 5, First positioning assembly; 501, Positioning seat; 502, Electrical control seat; 503, Snap connector; 504, Compression spring; 505, Pressure sensor; 6, Compression button; 7, Second positioning assembly; 8, Unloading assembly; 801, First displacement seat; 802, Ring seat; 803, Second motor; 804, Rotating seat; 805, Discharge seat; 9, Cutting assembly; 901, Second displacement seat; 902, Third sliding rail; 903, Third displacement seat; 904, Laser cutting head. Detailed Implementation

[0024] Please see Figures 1 to 9This invention provides a technical solution: a laser cutting machine for processing metal railings, comprising a base assembly 1, a feeding assembly 3, and a cutting assembly 9. The base assembly 1 includes a worktable 101, with a material threading seat 102 mounted on the rear outer end of the worktable 101, and a first guide seat 103 and a second guide seat 104 mounted on the outer end of the material threading seat 102. A first electrically controlled slide rail 105 and a second electrically controlled slide rail 106 are provided on the top of the worktable 101, and a discharge groove 107 is provided inside the worktable 101. The feeding assembly 3 is mounted on the top outer end of the base assembly 1, and the feeding assembly 3 includes a first fixed seat 301, with a first motor 302 mounted on the outer end of the first fixed seat 301, and a drive gear 303 mounted on the output end of the first motor 302. A first feeding bar 304 is mounted on the top outer side of the gear 303, and first meshing teeth 305 are provided on the upper and lower sides of the first feeding bar 304. Blocks 306 are mounted on both outer ends of the first feeding bar 304. A first support seat 307 is mounted on the top outer end of the base assembly 1, and a limit block 308 is mounted on the inner side of the first support seat 307. A second fixed seat 309 is mounted on the top inner side of the first support seat 307, and a first driven gear 310 is mounted on the inner side of the second fixed seat 309. A second driven gear 311 is mounted on the output end of the first driven gear 310. A pushing assembly 4 is mounted on the top outer end of the base assembly 1. The pushing assembly 4 includes a second support seat 401, and a driven shaft 402 is mounted on the outer end of the second support seat 401. A first meshing gear 403 and a second meshing gear 404 are fixed to the outer end of the moving shaft 402. A second feeding bar 405 is installed at the bottom outer end of the first meshing gear 403, and a second meshing tooth 406 is provided at the top outer end of the second feeding bar 405. A sliding groove 407 is opened at the outer end of the second feeding bar 405, and a sliding block 408 is installed inside the sliding groove 407. A bar 2 passes through the material pass 102. A first guide seat 103 is sleeved with the first meshing tooth 305, and a second guide seat 104 is sleeved with the second feeding bar 405. A first motor 302 drives the drive gear 303 to rotate, and the drive gear 303 drives the first feeding bar 304 to move through the first meshing tooth 305. The first feeding bar 304 is also moved through the first meshing tooth 305. A meshing tooth 305 drives the first driven gear 310 to rotate, and the first driven gear 310 drives the second driven gear 311 to rotate. The second driven gear 311 meshes with the second meshing gear 404, and the second meshing gear 404 drives the first meshing gear 403 to rotate through the driven shaft 402. Moreover, the first meshing gear 403 drives the second feed bar 405 to move through the second meshing tooth 406. The first feed bar 304 and the blocking block 306 are integrated structures, and the limiting block 308 blocks the blocking block 306 to limit the first feed bar 304. A first positioning component 5 is fixed to the outer end of the sliding block 408, and a squeeze button 6 is installed on the outer end of the first positioning component 5. A second positioning component 7 is fixed to the outer end of the first feed bar 304.A feeding assembly 8 is installed at the top center of the workbench 101, and a cutting assembly 9 is installed at the top outer end of the workbench 101. The first positioning assembly 5 and the second positioning assembly 7 have the same structure. The first positioning assembly 5 includes a positioning seat 501. Electrical control seats 502 are installed at both ends inside the positioning seat 501, and a snap connector 503 is provided at the output end of the electrical control seat 502. Compression springs 504 are installed at both ends outside the electrical control seat 502, and pressure sensors 505 are installed at both ends outside the electrical control seat 502. The specific operation is as follows: the operator inserts the metal bar 2 to be processed through the rear end of the inserting seat 102, allowing it to pass sequentially through the positioning seats 501 of the first positioning component 5 and the second positioning component 7. The inserting seat 102 is hollow inside, providing initial support for the bar 2. The top of the workbench 101 is equipped with a first electrically controlled slide rail 105 and a second electrically controlled slide rail 106. The first displacement seat 801 of the unloading component 8 is installed on the first electrically controlled slide rail 105, and the second displacement seat 901 of the cutting component 9 is installed on the second electrically controlled slide rail 106. According to the standard length requirements of the guardrail, the operator adjusts the initial positions of the unloading component 8 and the cutting component 9 respectively through the first electrically controlled slide rail 105 and the second electrically controlled slide rail 106, while simultaneously adjusting the sliding block 408 in the sliding groove 407. The movement of the first positioning component 5 adjusts its fixed position, which determines the final length of the bar 2 extending beyond the second positioning component 7, i.e., the standard cutting length of each section of the guardrail. After the bar 2 is fixed, the first motor 302 is started, driving the drive gear 303 to rotate. The drive gear 303 drives the first feeding bar 304 through the first meshing teeth 305, causing the first feeding bar 304 to move forward through the first guide seat 103. The first feeding bar 304 has first meshing teeth 305 on both its upper and lower sides, and its outer ends are integrally formed with blocking blocks 306. The limiting block 308 on the inner side of the first support seat 307 is used to limit the maximum stroke of the blocking block 306 to prevent over-displacement. When the first feeding bar 304 moves forward, it passes through the first meshing teeth on it. 305 drives the first driven gear 310 to rotate, which in turn drives the coaxial second driven gear 311 to rotate. The second driven gear 311 meshes with the second meshing gear 404 of the pusher assembly 4. The second meshing gear 404 drives the first meshing gear 403 to rotate synchronously through the driven shaft 402. The first meshing gear 403 drives the second feed bar 405 to move forward through the second guide seat 104 through the second meshing teeth 406. Due to the gear transmission ratio design, the pushing speed of the second feed bar 405 is faster than that of the first feed bar 304. The outer end of the first feed bar 304 is fixed with a second positioning assembly 7, and the sliding block 408 at the outer end of the second feed bar 405 is fixed with a first positioning assembly 5. Therefore, when the first motor 302 drives, The first positioning component 5 and the second positioning component 7 move forward simultaneously, but the first positioning component 5 moves faster. During the pushing process, the electrical control base 502 inside the first positioning component 5 drives the clamping connector 503 to extend and actively clamp the bar stock 2. The clamping connector 503 of the second positioning component 7 only maintains contact with the surface of the bar stock 2 without clamping, serving only as a contact guide. Because the first positioning component 5 moves faster and clamps the bar stock 2, it pushes the bar stock 2 forward, allowing it to pass through the interior of the second positioning component 7. At this time, the clamping connector 503 of the second positioning component 7 adheres to the surface of the bar stock 2, providing auxiliary positioning and preventing the bar stock 2 from bending due to its excessive length and drooping under its own weight.Meanwhile, the feeding seat 102 and the discharge seat 805 of the feeding assembly 8 can also provide support for the bar stock 2, ensuring straightness during the feeding process. When the first positioning assembly 5 moves forward until it is in contact with the end face of the second positioning assembly 7, the pressing button 6 at the outer end of the first positioning assembly 5 is triggered. The pressing button 6 sends a signal to the equipment, controlling the first motor 302 to stop rotating immediately. At this time, the length of the bar stock 2 extending from the front end of the second positioning assembly 7 is exactly equal to the preset standard guardrail length, because the initial distance between the first positioning assembly 5 and the second positioning assembly 7 has been adjusted by the sliding block 408, and the displacement of the bar stock 2 pushed by the first positioning assembly 5 when the two are in contact is exactly equal to this distance. During the feeding process, because the clamping joint 503 of the second positioning component 7 remains in contact with the surface of the bar stock 2, if the bar stock 2 itself has defects such as bending, uneven surface, or out-of-tolerance diameter, additional frictional resistance will be generated when the bar stock 2 passes through the second positioning component 7. This resistance will cause the electrical control seat 502 inside the first positioning component 5 to be subjected to a reaction force, which in turn squeezes the compression springs 504 at both ends of its exterior. The compression amount of the compression springs 504 is detected in real time by the pressure sensor 505. When the value detected by the pressure sensor 505 exceeds the normal threshold, the control system determines that the bar stock 2 has a quality defect, issues an alarm signal, or stops subsequent cutting, thereby realizing online quality inspection of the bar stock 2.

[0025] Please see Figures 1 to 9 The feeding assembly 8 includes a first displacement seat 801, an annular seat 802 is arranged at the outer end of the first displacement seat 801, and a second motor 803 is arranged at the outer end of the annular seat 802. A rotating seat 804 is arranged at the output end of the second motor 803, and a discharge seat 805 is arranged at both ends of the rotating seat 804. The cutting assembly 9 includes a second displacement seat 901, a third sliding rail 902 is arranged at the outer end of the second displacement seat 901, and a third displacement seat 903 is arranged at the outer end of the third sliding rail 902. A laser cutting head 904 is arranged at the outer end of the third displacement seat 903. The specific operation is as follows: After the bar stock 2 is positioned, the cutting assembly 9 starts working. The second displacement seat 901 can move along the second electrically controlled slide rail 106 to adapt to different cutting positions. The third displacement seat 903 moves on the third slide rail 902, driving the laser cutting head 904 to slowly descend along the axis of the bar stock 2. The laser cutting head 904 emits a high-energy laser beam, which can quickly and accurately cut the bar stock 2 to form a standard length of finished guardrail. During the feeding process, the bar stock 2 will contact the discharge seat 805 inside the annular seat 802. The outer contour shape of the discharge seat 805 is an arc-shaped groove, which is consistent with the outer diameter of the bar stock 2. This makes the discharge seat 805... 5 can support the bar stock 2. After cutting, only the discharge seat 805 supports the bar stock 2. The second motor 803 works to make the rotating seat 804 drive the discharge seat 805 to rotate. This allows the discharge seat 805 to carry the bar stock 2 into the annular seat 802. The inner contour of the annular seat 802 matches the outer diameter of the bar stock 2, forming a semi-enclosed support for the bar stock 2 to prevent it from falling off. As the rotating seat 804 rotates, the discharge seat 805 moves the cut finished bar stock 2 to the bottom of the annular seat 802. The bottom of the annular seat 802 is open and is on the same display row as the discharge chute 107, which allows the finished metal guardrail to pass through the discharge chute. 107 slides out of the equipment, completing automatic unloading. After completing one cut and unloading, the equipment will reset the feeding mechanism to prepare for the next cut. During the reset process, the equipment will cause the electric control base 502 of the first positioning component 5 to release the drive clamp 503, releasing the clamp on the bar 2. At the same time, the electric control base 502 of the second positioning component 7 extends to actively clamp the bar 2. The first motor 302 reverses, driving the first feeding bar 304 and the second feeding bar 405 to move backward. Since the transmission ratio remains unchanged, the reset speed of the first positioning component 5 is still faster than that of the second positioning component 7, but both move backward. Because the second positioning component 7 clamps the bar... Material 2 is inserted into the first positioning component 5, which has been released. Therefore, when the first positioning component 5 resets backward, it will not drag material 2. Since the second positioning component 7 clamps material 2 and moves backward slowly, it is actually equivalent to material 2 remaining stationary relative to the second positioning component 7. Finally, the first positioning component 5 and the second positioning component 7 separate back to the initial distance, while the front end of material 2 remains at the outlet of the second positioning component 7. Under this operation, when pushing material next time, the first positioning component 5 clamps material 2 again and can push material 2 forward by a standard length. Moreover, the tail material will not be unusable due to the material 2 being dragged back every time it resets, which greatly improves the material utilization rate.

[0026] In summary, when using this laser cutting machine for metal railing processing, the operator first inserts the metal bar 2 to be processed through the rear end of the inserting seat 102, allowing it to pass sequentially through the positioning seats 501 of the first positioning component 5 and the second positioning component 7. The inserting seat 102 is hollow inside, providing initial support for the bar 2. The top of the worktable 101 is equipped with a first electrically controlled slide rail 105 and a second electrically controlled slide rail 106. The first displacement seat 801 of the unloading component 8 is installed on the first electrically controlled slide rail 105, and the second displacement seat 901 of the cutting component 9 is installed on the second electrically controlled slide rail 106. According to the standard length requirements of the railing, the operator adjusts the initial positions of the unloading component 8 and the cutting component 9 respectively through the first electrically controlled slide rail 105 and the second electrically controlled slide rail 106. At the same time, the fixed position of the first positioning component 5 is adjusted by the movement of the sliding block 408 in the sliding groove 407. This adjustment determines the final length of the bar 2 extending out of the second positioning component 7, which is the standard cutting length of each section of the railing. After the bar stock 2 is fixed, the first motor 302 is started, driving the drive gear 303 to rotate. The drive gear 303 drives the first feed bar 304 through the first meshing teeth 305, causing the first feed bar 304 to move forward through the first guide seat 103. The first feed bar 304 has first meshing teeth 305 on both its upper and lower sides, and its outer ends are integrally formed with blocking blocks 306. The limiting block 308 on the inner side of the first support seat 307 is used to limit the maximum stroke of the blocking block 306 to prevent over-displacement. When the first feed bar 304 moves forward... The first driven gear 310 is rotated by the first meshing tooth 305 on the first driven gear 310, which in turn drives the coaxial second driven gear 311 to rotate. The second driven gear 311 meshes with the second meshing gear 404 of the pusher assembly 4. The second meshing gear 404 drives the first meshing gear 403 to rotate synchronously through the driven shaft 402. The first meshing gear 403 drives the second feed bar 405 to move forward through the second guide seat 104 through the second meshing tooth 406. Due to the design of the gear transmission ratio, the second feed bar 405 has a fast pushing speed. The first feeding bar 304 has a second positioning component 7 fixed to its outer end, and the second feeding bar 405 has a first positioning component 5 fixed to its sliding block 408 at its outer end. Therefore, when the first motor 302 drives the first positioning component 5 and the second positioning component 7, they move forward simultaneously, but the first positioning component 5 moves faster. During the feeding process, the electrical control base 502 inside the first positioning component 5 drives the clamping connector 503 to extend and actively clamp the bar stock 2, while the clamping connector 503 of the second positioning component 7 only keeps in contact with the surface of the bar stock 2. The first positioning component 5 moves faster and holds the bar 2, so it pushes the bar 2 forward, allowing it to pass through the interior of the second positioning component 7. At this time, the clamping joint 503 of the second positioning component 7 fits against the surface of the bar 2, which helps to position and prevent the bar 2 from bending. This avoids the bar 2 from bending due to its excessive length and its own weight. At the same time, the material passer 102 and the discharge seat 805 of the material feeder 8 can also provide support for the bar 2, ensuring the straightness during the feeding process. Then, when the first positioning component 5 moves forward until it is in contact with the end face of the second positioning component 7, the pressing button 6 at the outer end of the first positioning component 5 is triggered. The pressing button 6 sends a signal to the device, controlling the first motor 302 to stop rotating immediately. At this time, the length of the bar 2 extending from the front end of the second positioning component 7 is exactly equal to the preset standard guardrail length. This is because the initial distance between the first positioning component 5 and the second positioning component 7 has been adjusted by the sliding block 408, and the displacement of the bar 2 pushed by the first positioning component 5 when they are in contact is exactly equal to this distance. During the pushing process, due to the locking joint 50 of the second positioning component 7... 3. The bar stock 2 is kept in contact with the surface of the bar stock 2. If the bar stock 2 itself has defects such as bending, uneven surface or diameter exceeding tolerance, the bar stock 2 will generate additional frictional resistance when passing through the second positioning component 7. This resistance will cause the electric control seat 502 inside the first positioning component 5 to be subjected to a reaction force, which will then squeeze the compression springs 504 at both ends of its exterior. The compression amount of the compression springs 504 is detected in real time by the pressure sensor 505. When the value detected by the pressure sensor 505 exceeds the normal threshold, the control system determines that the bar stock 2 has a quality defect, issues an alarm signal or stops subsequent cutting, thereby realizing online quality detection of the bar stock 2. After the bar stock 2 is positioned, the cutting assembly 9 begins to operate. The second displacement seat 901 can move along the second electrically controlled slide rail 106 to adapt to different cutting positions. The third displacement seat 903 moves on the third slide rail 902, driving the laser cutting head 904 to slowly descend along the axis of the bar stock 2. The laser cutting head 904 emits a high-energy laser beam, which can quickly and accurately cut the bar stock 2 to form a standard length of finished guardrail. During the feeding process, the bar stock 2 will contact the discharge seat 805 inside the annular seat 802. The outer contour of the discharge seat 805 is an arc-shaped groove, which is consistent with the outer diameter of the bar stock 2. This allows the discharge seat 805 to support the bar stock 2. After cutting, only the discharge seat 805 supports the bar stock 2. The second motor 803 works to make the rotating seat 804 drive the discharge seat 805 to rotate. This allows the discharge seat 805 to carry the bar stock 2 into the annular seat 802. The inner contour of the annular seat 802 matches the outer diameter of the bar stock 2, forming a semi-enclosed support for the bar stock 2 to prevent it from falling off. As the rotating seat 804 rotates, the discharge seat 805 moves the cut finished bar stock 2 to the bottom of the annular seat 802. The bottom of the annular seat 802 is open and is on the same display row as the discharge chute 107. This allows the finished metal guardrail to slide out of the equipment through the discharge chute 107, completing the automatic unloading. Finally, after completing one cut and unloading, the equipment resets the feeding mechanism to prepare for the next cut. During the reset process, the equipment releases the clamping connector 503 driven by the electrical control base 502 of the first positioning component 5, releasing the clamp on the bar stock 2. Simultaneously, the clamping connector 503 driven by the electrical control base 502 of the second positioning component 7 extends to actively clamp the bar stock 2. The first motor 302 reverses, driving the first feeding bar 304 and the second feeding bar 405 to move backward. Since the transmission ratio remains unchanged, the reset speed of the first positioning component 5 is still faster than that of the second positioning component 7, but both move backward. Because the second positioning component 7 clamps the bar stock 2, while the first... Positioning component 5 has been released, so the first positioning component 5 will not drag the bar stock 2 when it resets backward. Since the second positioning component 7 is holding the bar stock 2 and moves backward slowly, it is actually equivalent to the bar stock 2 remaining stationary relative to the second positioning component 7. Finally, the first positioning component 5 and the second positioning component 7 separate back to the initial distance, while the front end of the bar stock 2 remains at the discharge port of the second positioning component 7. Under this operation, when pushing the material again, the first positioning component 5 will hold the bar stock 2 again and push the bar stock 2 forward by a standard length. Moreover, the bar stock 2 will not be dragged back every time it resets, which would cause the tail material to be unusable, thus greatly improving the material utilization rate.

[0027] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A laser cutting machine for processing metal railings, characterized in that, The system includes a base assembly (1), a feeding assembly (3), and a cutting assembly (9). The feeding assembly (3) is mounted on the top outer end of the base assembly (1). The feeding assembly (3) includes a first fixed seat (301). A first motor (302) is mounted on the outer end of the first fixed seat (301), and a drive gear (303) is mounted on the output end of the first motor (302). A first feeding bar (304) is mounted on the top outer side of the drive gear (303), and first meshing teeth (305) are provided on the upper and lower sides of the first feeding bar (304). Blocks (306) are mounted on both outer ends of the first feeding bar (304). A first support seat (307) is mounted on the top outer end of the base assembly (1), and a limit block (308) is mounted on the inner side of the first support seat (307). A second fixed... The base assembly (1) has a base (309), and a first driven gear (310) is arranged on the inner side of the second fixed base (309). A second driven gear (311) is arranged on the output end of the first driven gear (310). A pusher assembly (4) is arranged on the top outer end of the base assembly (1). The pusher assembly (4) includes a second support base (401). A driven shaft (402) is arranged on the outer end of the second support base (401). A first meshing gear (403) and a second meshing gear (404) are fixed on the outer end of the driven shaft (402). A second feeding bar (405) is arranged on the bottom outer end of the first meshing gear (403). A second meshing tooth (406) is provided on the top outer end of the second feeding bar (405). A sliding groove (407) is opened on the outer end of the second feeding bar (405). A sliding block (408) is arranged inside the sliding groove (407).

2. The laser cutting machine for processing metal railings according to claim 1, characterized in that, The base assembly (1) includes a workbench (101), a material pass-through seat (102) is arranged at the rear outer end of the workbench (101), and a first guide seat (103) and a second guide seat (104) are arranged at the outer end of the material pass-through seat (102). A first electrically controlled slide rail (105) and a second electrically controlled slide rail (106) are provided at the top of the workbench (101), and a discharge chute (107) is opened inside the workbench (101).

3. The laser cutting machine for processing metal railings according to claim 2, characterized in that, The material feed seat (102) has a bar stock (2) running through it. The first guide seat (103) is sleeved with the first meshing tooth (305), and the second guide seat (104) is sleeved with the second feed bar (405).

4. The laser cutting machine for processing metal railings according to claim 1, characterized in that, The first motor (302) drives the drive gear (303) to rotate, and the drive gear (303) drives the first feed bar (304) to move through the first meshing tooth (305). The first feed bar (304) drives the first driven gear (310) to rotate through the first meshing tooth (305), and the first driven gear (310) drives the second driven gear (311) to rotate.

5. A laser cutting machine for processing metal railings according to claim 1, characterized in that, The second driven gear (311) meshes with the second meshing gear (404), and the second meshing gear (404) drives the first meshing gear (403) to rotate through the driven shaft (402), and the first meshing gear (403) drives the second feed bar (405) to move through the second meshing teeth (406).

6. The laser cutting machine for processing metal railings according to claim 1, characterized in that, The first feed bar (304) and the blocking block (306) are an integrated structure, and the limiting block (308) blocks the blocking block (306) to limit the first feed bar (304).

7. A laser cutting machine for processing metal railings according to claim 2, characterized in that, The outer end of the sliding block (408) is fixed with a first positioning component (5), and the outer end of the first positioning component (5) is equipped with a squeeze button (6). The outer end of the first feeding bar (304) is fixed with a second positioning component (7). The top middle section of the workbench (101) is equipped with a feeding component (8), and the top outer end of the workbench (101) is equipped with a cutting component (9). The first positioning component (5) and the second positioning component (7) have the same structure.

8. A laser cutting machine for processing metal railings according to claim 7, characterized in that, The first positioning component (5) includes a positioning seat (501), an electric control seat (502) is installed at both ends inside the positioning seat (501), and a snap connector (503) is provided at the output end of the electric control seat (502). A compression spring (504) is installed at both ends outside the electric control seat (502), and a pressure sensor (505) is provided at both ends outside the electric control seat (502).

9. A laser cutting machine for processing metal railings according to claim 7, characterized in that, The feeding assembly (8) includes a first displacement seat (801), an annular seat (802) is arranged at the outer end of the first displacement seat (801), and a second motor (803) is arranged at the outer end of the annular seat (802). A rotating seat (804) is provided at the output end of the second motor (803), and a discharge seat (805) is arranged at both ends of the outer side of the rotating seat (804).

10. A laser cutting machine for processing metal railings according to claim 7, characterized in that, The material cutting assembly (9) includes a second displacement seat (901), a third sliding rail (902) is provided on the outside of the second displacement seat (901), and a third displacement seat (903) is provided at the outer end of the third sliding rail (902), and a laser cutting head (904) is placed at the outer end of the third displacement seat (903).

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