Railway turnout plate cutting device

Abstract

The invention discloses a railway turnout plate cutting device which comprises a support, a mounting part is movably connected to the support, a laser cutting body is vertically arranged on the mounting part, a sliding frame is arranged on the mounting part, the sliding frame is slidably connected with the mounting part in the vertical direction, and the sliding frame is fixedly connected with the laser cutting body. A first screw rod is vertically arranged on the mounting part, the first screw rod is rotatably connected with the mounting part, two clamping assemblies are arranged on the support, each clamping assembly comprises an upper clamping plate and a lower clamping plate, a second screw rod is rotatably connected to the support, and the second screw rod is vertically arranged on the upper clamping plate and the lower clamping plate in a penetrating mode; the upper clamping plate and / or the lower clamping plate are / is connected with the second screw rods in a matched mode through threads, and a first transmission assembly is arranged between any second screw rod and the first screw rod. The laser cutting device aims at solving the technical problems that under the action of external force, the position of a metal plate is prone to change, and the distance between the laser cutting device and the metal plate cannot be adaptively adjusted according to the thickness of the metal plate.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology, specifically, it relates to a railway turnout plate cutting device. Background Technology

[0002] Railway turnout plates, as key components of railway turnout systems, play a vital role. Ordinary turnout plates are used in general turnout areas, and their main function is to support the rails and transfer loads. Specifically, the plate directly supports the rails and is then connected to the turnout foundation via bolts, thus ensuring the stability and precise positioning of the rails in the turnout area.

[0003] Railway turnout plates are typically made by cutting and processing a single sheet of metal, and laser cutting equipment is a commonly used tool for cutting solid metal sheets. However, the following problems affect the cutting quality when using laser cutting equipment to cut metal sheets: Firstly, metal sheets are usually laid on supports, and their position is easily changed under the action of external forces, which in turn has an adverse effect on the cutting quality.

[0004] Secondly, the distance between the laser cutting device and the metal sheet was not adjusted according to the thickness of the metal sheet, which also affected the cutting quality. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a railway turnout plate cutting device to solve the technical problems that the position of the metal plate laid on the support is easily changed under the action of external force, and that the distance between the laser cutting device and the metal plate cannot be adaptively adjusted according to the thickness of the metal plate.

[0006] To achieve the aforementioned objectives, the present invention employs the following technical solution: a railway turnout plate cutting device for cutting metal plates to produce railway turnout plates, comprising a support, a mounting part movably connected to the support, a laser cutting body vertically mounted on the mounting part, the laser cutting body being positioned above the metal plate, a sliding frame mounted on the mounting part, the sliding frame being slidably connected to the mounting part along a vertical direction, the sliding frame being fixedly connected to the laser cutting body, a first screw vertically mounted on the mounting part, the first screw being rotatably connected to the mounting part, and the first screw being threadedly connected to the sliding frame; The bracket is provided with two clamping assemblies, which are respectively located on both sides of the metal sheet along its length. Each clamping assembly includes an upper clamping plate and a lower clamping plate, which are located on the upper and lower sides of the metal sheet and are both arranged along the length of the metal sheet. A second screw is rotatably connected to the bracket. The second screw is vertically inserted through the upper and lower clamping plates. The upper and / or lower clamping plates are connected to the second screw by threads. By rotating the second screw, the upper and lower clamping plates can be moved closer or further apart. A first transmission assembly is provided between either the second screw and the first screw. Through the first transmission assembly, the rotation of the second screw can drive the rotation of the first screw.

[0007] Compared with the prior art, the advantages of the present invention include: (1) The railway turnout plate cutting device provided by the present invention uses the second screw to make the upper and lower clamping plates close together to clamp the metal plate, thereby reducing the possibility that the position of the metal plate may easily change under the action of external force, which may have an adverse effect on the cutting quality.

[0008] (2) The present invention provides a railway turnout plate cutting device. When the upper clamping plate and the lower clamping plate clamp the metal plate, the distance between the upper clamping plate and the lower clamping plate is the thickness of the metal plate. The upper clamping plate and the lower clamping plate have an initial position. The thicker the metal plate, the smaller the distance from the initial position to the metal plate. Correspondingly, the laser cutting body also has an initial position. In order to achieve coordination between the thickness of the metal plate and the distance from the laser cutting body to the top surface of the metal plate, when the second screw rotates to bring the upper clamping plate and the lower clamping plate closer, the laser cutting body should move from bottom to top. The thicker the metal plate, the smaller the distance from the initial position to the metal plate, and the smaller the distance the laser cutting body moves upward. Finally, the distance between the laser cutting device and the metal plate is adaptively adjusted according to the thickness of the metal plate.

[0009] (3) The railway turnout plate cutting device provided by the present invention, through the transmission action of the first transmission component, the rotation of the second screw (i.e., the clamping of the metal plate) can be transmitted to the first screw, driving the first screw to rotate synchronously. This linkage design enables the laser cutting body to automatically perform corresponding lifting and lowering adjustments (adjusting the distance between the laser cutting body and the top surface of the metal plate according to the thickness of the metal plate) while adjusting the clamping state of the metal plate, simplifying the operation process and improving work efficiency.

[0010] Furthermore, both the upper clamping plate and the lower clamping plate are connected to the second screw via threads, and the thread direction between the upper clamping plate and the second screw is opposite to the thread direction between the lower clamping plate and the second screw. A support wheel is provided between the upper clamping plate and the lower clamping plate. The support wheel is rotatably connected to the bracket. The axis of the support wheel is in the same direction as the width of the metal sheet. When the clamping assembly is not working, the support wheel is used to support and transport the metal sheet.

[0011] Furthermore, the mounting part is provided with a gas purging assembly, which is connected to an exhaust pipe. The exhaust pipe is provided with a valve for adjusting the gas flow rate. A second transmission assembly is provided between the valve and the first screw. Through the second transmission assembly, the rotation of the first screw can change the degree of valve closure.

[0012] Furthermore, a water tank for cooling molten slag and cut metal sheets is provided below the clamping assembly. A conveying assembly is provided in the water tank. The conveying assembly is arranged along the length of the metal sheet and is used to convey the cut metal sheet. The conveying assembly consists of a horizontal section and an inclined section arranged in sequence. The horizontal section is horizontally arranged in the water tank, and the inclined section extends upward from the end away from the horizontal section and out of the water tank. The horizontal section and the inclined section are connected by a drive.

[0013] Furthermore, a residue cleaning assembly is provided inside the water tank. The residue cleaning assembly includes a reciprocating screw arranged along the length of the metal plate, a first slider fitted on the reciprocating screw, a push plate arranged on the first slider, the push plate arranged along the width of the metal plate, the lower end of the push plate abutting against the bottom of the water tank, a collection trough arranged at the bottom of the water tank, the collection trough arranged along the width of the metal plate, and the collection trough located below the end of the reciprocating screw away from the inclined section. The conveying assembly has an output shaft, and the rotation of the output shaft enables the conveying assembly to operate. A third transmission assembly is provided between the output shaft and the reciprocating lead screw, and the rotation of the reciprocating lead screw can drive the output shaft to rotate through the third transmission assembly. The bracket is equipped with a drive assembly for driving the reciprocating lead screw to rotate.

[0014] Furthermore, the push plate is provided with a rotating shaft, which is arranged along the width direction of the metal sheet. The rotating shaft is rotatably connected to the first slider. A first elastic element is provided between the push plate and the first slider. One end of the first elastic element is hinged to the first slider, and the other end is hinged to a second slider. The second slider is slidably connected to the push plate along the width direction of the push plate. The push plate is inclined upward on the side away from the collection groove. A lever is provided on the side of the push plate away from the collection tank. The lever extends along the length of the push plate to the side wall of the water tank. An inclined first conversion plate and a second conversion plate are respectively provided on the side wall of the water tank. The ends of the first conversion plate and the second conversion plate away from the collection tank are both inclined upwards. The first conversion plate and the second conversion plate are at the same horizontal position. The first conversion plate is close to the collection tank. When the push plate moves toward the collection tank, its lower end abuts against the bottom of the tank under the action of the first elastic element. When the lever moves to contact the first conversion plate, the first conversion plate pushes the push plate to rotate through the lever so that the push plate is in a horizontal state. When the push plate moves away from the collection tank, it maintains its horizontal state under the action of the first elastic element. When the lever moves to contact the second conversion plate, the second conversion plate pushes the push plate to rotate in the opposite direction through the lever so that the side of the push plate closest to the collection tank abuts against the bottom of the tank.

[0015] Furthermore, the output shaft is arranged in the horizontal section of the conveying assembly, and a slide bar is provided on the horizontal section. The slide bar is arranged along the length direction of the metal plate and is slidably connected to the water tank in the vertical direction. A second elastic element is provided between the slide bar and the water tank, and a limiting block is provided in the water tank to limit the downward movement distance of the slide bar. The third transmission component includes a first bevel gear, a second bevel gear, a fifth gear, and a sixth gear. The fifth bevel gear is fixedly connected to the reciprocating lead screw and is coaxially arranged. The sixth bevel gear is rotatably connected inside the water tank and meshes with the fifth bevel gear. The fifth and sixth bevel gears are fixedly connected and coaxially arranged. The sixth gear is fixedly connected to the output shaft and is coaxially arranged. When a metal plate is supported on the horizontal section, the horizontal section moves vertically downward to allow the fifth and sixth gears to mesh. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural illustration of an embodiment of the present invention. Figure 1 ; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a structural illustration of an embodiment of the present invention. Figure 2 ; Figure 4 for Figure 3 Enlarged structural diagram at point B; Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 6 for Figure 5 Enlarged structural diagram at point C; Figure 7 for Figure 5 A magnified structural diagram at point D.

[0018] Figure label: 1. Metal sheet; 2. Bracket; 3. Mounting part; 4. Laser cutting body; 5. Sliding frame; 6. First screw; 7. Upper clamping plate; 8. Lower clamping plate; 9. Second screw; 10. First gear; 11. Second gear; 12. First transmission wheel; 13. Second transmission wheel; 14. Support wheel; 15. Gas purging assembly; 16. Exhaust pipe; 17. Valve; 18. Third gear; 19. Fourth gear; 20. Water tank; 21. Horizontal section; 22. Inclined section; 23. Reciprocating screw; 24. First slider; 25. Push plate; 26. Collection trough; 27. Drive assembly; 28. First elastic element; 29. ​​Second slider; 30. Lever; 31. First conversion plate; 32. Second conversion plate; 33. Slide rod; 34. Second elastic element; 35. Limiting block; 36. First bevel gear; 37. Second bevel gear; 38. Fifth gear; 39. Sixth gear; 40. Third transmission wheel; 41. Fourth transmission wheel; 42. Fifth transmission wheel; 43. Third elastic element. Detailed Implementation

[0019] In view of the shortcomings of the prior art, the inventors of this invention, through long-term research and extensive practice, have proposed the technical solution of this invention. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples in the embodiments of this application.

[0020] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made on the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0022] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0023] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0024] Please see Figure 1-7 This invention provides a technical solution: a railway turnout plate cutting device for cutting metal sheet 1 to produce railway turnout plates. Known railway turnout plates include ordinary pads for load-bearing functions, which can be cut from a single piece of metal sheet 1. In the prior art, the metal sheet 1 is laid horizontally. (See reference...) Figure 1-4The railway turnout plate cutting device includes a bracket 2, on which a mounting part 3 is movably connected. The mounting part 3 serves as the mounting carrier for the laser cutting body 4. By sliding on the bracket 2, it drives the laser cutting body 4 to move flexibly in the horizontal direction, enabling cutting operations on different positions of the metal plate 1. The movable connection between the bracket 2 and the mounting part 3 can be understood as the bracket 2 having a longitudinal sliding track and a transverse sliding track within a certain horizontal plane. The mounting part 3 can slide along the longitudinal and transverse sliding tracks to achieve flexible sliding on the bracket 2.

[0025] A laser cutting body 4 is vertically mounted on the mounting part 3, positioned above the metal sheet 1. In other words, the laser cutting body 4 is vertically mounted, and the laser emitted by it for metal cutting points vertically downwards, acting on the top surface of the metal sheet 1. A sliding frame 5 is mounted on the mounting part 3, slidably connected to it in the vertical direction (e.g., a guide rail slider connection). The sliding frame 5 is fixedly connected to the laser cutting body 4, allowing the laser cutting body 4 to move vertically with the sliding frame 5. A first screw 6 is vertically mounted on the mounting part 3, rotatably connected to it, and threadedly connected to the sliding frame 5.

[0026] See Figure 2 , 4 When the height of the laser cutting body 4 needs to be adjusted, the first screw 6 is driven to rotate. Since the first screw 6 is threadedly engaged with the sliding frame 5, during the rotation of the first screw 6, according to the principle of threaded transmission, the sliding frame 5 will move linearly along the axial direction (i.e., vertical direction) of the first screw 6. Because the laser cutting body 4 is fixed on the sliding frame 5, the movement of the sliding frame 5 will cause the laser cutting body 4 to rise and fall synchronously, thereby adjusting the distance between the laser cutting body 4 and the metal sheet 1 to meet the cutting requirements of metal sheets 1 of different thicknesses. It should be noted that when the thickness of the metal sheet 1 is different, the distance between the laser cutting head and the surface of the metal sheet 1 (i.e., the focal point position) usually needs to be adjusted (the thicker the metal sheet 1, the closer the distance between the laser cutting head and the surface of the metal sheet 1). The reason is that when cutting thick plates, the laser beam needs to penetrate deeper material layers. Negative defocus can expand the spot diameter, reduce the power density, and prevent the material from overheating and melting, leading to a wider cut or slag buildup.

[0027] See Figure 1The bracket 2 is equipped with two clamping components, which are respectively located on both sides of the metal sheet 1 along its length. The two clamping components clamp the edges of the metal sheet 1 along its length, leaving the middle section of the metal sheet 1, where it is to be cut, suspended. Each clamping component includes an upper clamping plate 7 and a lower clamping plate 8, located on the upper and lower sides of the metal sheet 1 respectively, both along its length. When the upper clamping plate 7 and lower clamping plate 8 are close together, the metal sheet 1 is clamped and fixed; when they are far apart, the metal sheet 1 is released. A second screw 9 is rotatably connected to the bracket 2, vertically passing through the upper clamping plate 7 and lower clamping plate 8. The upper clamping plate 7 and / or lower clamping plate 8 are connected to the second screw 9 via threads. By rotating the second screw 9, the upper clamping plate 7 and lower clamping plate 8 can be moved closer or further apart. Specifically, the movement of the upper clamping plate 7 and the lower clamping plate 8 can be divided into the following three modes: First, the upper clamping plate 7 is fixed on the bracket 2, and the lower clamping plate 8 is connected to the second screw 9 by a threaded engagement; second, the lower clamping plate 8 is fixed on the bracket 2, and the upper clamping plate 7 is connected to the second screw 9 by a threaded engagement; third, both the upper clamping plate 7 and the lower clamping plate 8 are connected to the second screw 9 by a threaded engagement, and the thread direction between the upper clamping plate 7 and the second screw 9 is opposite to the thread direction between the lower clamping plate 8 and the second screw 9.

[0028] When it is necessary to clamp the metal sheet 1, rotate the second screw 9. Since the upper clamping plate 7 and / or the lower clamping plate 8 are threadedly engaged with the second screw 9, according to the principle of thread transmission, as the second screw 9 rotates, the upper clamping plate 7 and the lower clamping plate 8 will move relative to each other along the axial direction (i.e., the vertical direction) of the second screw 9. When the rotation direction of the second screw 9 causes the upper clamping plate 7 and the lower clamping plate 8 to move closer to each other, the upper clamping plate 7 and the lower clamping plate 8 will gradually clamp the metal sheet 1 located between them; conversely, when the second screw 9 is rotated to move the upper clamping plate 7 and the lower clamping plate 8 away from each other, the metal sheet 1 can be released, facilitating the installation and removal of the metal sheet 1.

[0029] See Figure 2 , 4A first transmission assembly is provided between any two second screws 9 and the first screw 6. Through this first transmission assembly, the rotation of the second screw 9 drives the rotation of the first screw 6. During operation, when the second screw 9 is rotated, the rotation of the second screw 9 is transmitted to the first screw 6 through the transmission action of the first transmission assembly, causing the first screw 6 to rotate synchronously. This linkage design allows the laser cutting body 4 to automatically adjust its height (adjusting the distance between the laser cutting body 4 and the top surface of the metal sheet 1 according to its thickness) while adjusting the clamping state of the metal sheet 1 (i.e., rotating the second screw 9), simplifying the operation process and improving work efficiency. It is understandable that the upper clamping plate 7 and the lower clamping plate 8 have an initial position. The thicker the metal plate 1, the smaller the distance from the initial position to the metal plate 1. Correspondingly, the laser cutting body 4 also has an initial position. In order to coordinate the thickness of the metal plate 1 with the distance from the laser cutting body 4 to the top surface of the metal plate 1, when the second screw 9 rotates to bring the upper clamping plate 7 and the lower clamping plate 8 together, the laser cutting body 4 should move from bottom to top. The thicker the metal plate 1, the smaller the distance from the initial position to the metal plate 1, and the smaller the distance the laser cutting body 4 moves upward.

[0030] Specifically, the first transmission assembly includes a first gear 10, a second gear 11, a first transmission wheel 12, and a second transmission wheel 13. The first gear 10 is coaxially fixedly connected to the second screw 9, and the second gear 11 is rotatably connected to the bracket 2. The second gear 11 meshes with the first gear 10, and is coaxially fixedly connected to the first transmission wheel 12. The second transmission wheel 13 is coaxially fixedly connected to the first screw 6. The first transmission wheel 12 and the second transmission wheel 13 are connected by a synchronous belt, chain, or belt. In actual use, the position of the mounting part 3 is adjusted to make the first gear 10 and the second gear 11 mesh. Then, the second screw 9 is rotated. The rotation of the second screw 9 drives the first gear 10 to rotate, which in turn drives the second gear 11 to rotate. The rotation of the second gear 11 drives the first transmission wheel 12 to rotate, which in turn drives the second transmission wheel 13 to rotate, and the rotation of the second transmission wheel 13 drives the first screw 6 to rotate. After clamping and position adjustment are completed, the mounting part 3 is moved so that the first gear 10 and the second gear 11 disengage. Then the laser cutting body 4 can be started and the mounting part 3 can be moved according to the set route to cut the metal sheet 1. After cutting is completed, the position of the mounting part 3 is readjusted so that the first gear 10 and the second gear 11 re-engage. The second screw 9 is rotated so that the clamping assembly and the laser cutting body 4 return to their original positions. The above operation is repeated after metal sheets 1 of different thicknesses are replaced.

[0031] To make the upper clamping plate 7 and the lower clamping plate 8 more stable when they come together and separate, a clamping assembly includes two second screws 9, which are arranged on both sides of the upper clamping plate 7 and the lower clamping plate 8. The two clamping assemblies include a total of four second screws 9, which are connected to each other. The first gear 10 is fixed on one of the second screws 9.

[0032] See Figure 5 In this embodiment, both the upper clamping plate 7 and the lower clamping plate 8 are connected to the second screw 9 via threads, and the thread direction between the upper clamping plate 7 and the second screw 9 is opposite to that between the lower clamping plate 8 and the second screw 9. When it is necessary to clamp the metal sheet 1, the second screw 9 is rotated. Since the threads of the upper clamping plate 7 and the lower clamping plate 8 have opposite directions, according to the principle of thread transmission, during the rotation of the second screw 9, the upper clamping plate 7 will move in one direction (e.g., upward), while the lower clamping plate 8 will move in the opposite direction (e.g., downward), and the two will move closer to each other. As the upper and lower clamping plates 8 move closer together, they will gradually clamp the metal sheet 1 located in the middle, achieving stable fixation of the metal sheet 1 and preventing the metal sheet 1 from moving during the cutting process. When it is necessary to release the metal sheet 1, the second screw 9 is rotated in the opposite direction. At this time, the upper clamping plate 7 and the lower clamping plate 8 will move away from each other under the opposite thread forces, thereby releasing the clamping of the metal sheet 1 and facilitating the removal of the cut or uncut metal sheet 1.

[0033] A support wheel 14 is provided between the upper clamping plate 7 and the lower clamping plate 8. The support wheel 14 is rotatably connected to the bracket 2. The axis of the support wheel 14 is in the same direction as the width of the metal sheet 1. When the clamping assembly is not working, the support wheel 14 is used to support and transport the metal sheet 1. When the clamping assembly is not working, that is, when it is not necessary to clamp the metal sheet 1, the support wheel 14 plays the role of supporting and transporting the metal sheet 1. When the metal sheet 1 is placed on the support wheel 14, since the support wheel 14 can rotate, rolling friction is generated between the metal sheet 1 and the support wheel 14 when the metal sheet 1 is pushed. Compared with sliding friction, rolling friction is smaller, which makes the metal sheet 1 move more easily on the support wheel 14, making it easier to transport the metal sheet 1 to the designated cutting position. When it is necessary to cut the metal sheet 1, the upper and lower clamping plates 8 are brought closer together and clamped by rotating the second screw 9. At this time, the metal sheet 1 is fixed in the clamping assembly, and the support wheel 14 no longer undertakes the transport function, but works with the upper and lower clamping plates 8 to ensure the stability of the metal sheet 1 during the cutting process.

[0034] See Figure 2 , 4In this embodiment, a gas purging assembly 15 is provided on the mounting part 3, and the gas purging assembly 15 is connected to an exhaust pipe 16. The gas purging assembly 15 serves as the source of gas generation and output, providing gas with a certain pressure and flow rate. The exhaust pipe 16 guides the gas to the area requiring purging, namely the cutting area of ​​the metal sheet 1. During the laser cutting of the metal sheet 1, a large amount of molten slag is generated. If this molten slag adheres to the surface of the metal sheet 1 or the laser cutting body 4, it will affect the cutting quality. The gas purging assembly 15 blows gas into the cutting area through the exhaust pipe 16, utilizing the impact force and flowability of the gas to blow the molten slag away from the cutting area through the cutting seam, keeping the cutting area clean, thereby improving cutting accuracy and quality.

[0035] A valve 17 for regulating gas flow is installed on the exhaust pipe 16. The valve 17 can control the gas flow rate through the exhaust pipe 16 by changing its opening degree. When the valve 17 opening degree increases, the gas flow rate increases and the purging force is enhanced; when the valve 17 opening degree decreases, the gas flow rate decreases and the purging force is weakened. In the actual cutting process, different thicknesses of the metal sheet 1 have different requirements for the gas purging force. For example, when cutting thicker metal sheets 1, a larger gas flow rate is required to effectively purge the molten slag; while when cutting thinner metal sheets 1, a smaller gas flow rate is sufficient. Excessive gas flow rate will affect the cutting stability. By adjusting the degree of closure of the valve 17, the gas flow rate can be flexibly controlled according to the actual situation to achieve the best purging effect.

[0036] A second transmission assembly is provided between valve 17 and the first screw 6. Through the second transmission assembly, the rotation of the first screw 6 can change the degree of closure of valve 17. The second transmission assembly plays the role of transmitting power and motion, and can convert the rotational motion of the first screw 6 into the opening and closing motion of valve 17, thereby realizing the linkage between the rotation of the first screw 6 and the degree of closure of valve 17.

[0037] When the first screw 6 rotates, and the laser cutting body 4 moves away from the metal plate 1 from its initial position, if the metal plate 1 is thick, the distance the laser cutting body 4 moves away from the metal plate 1 is smaller, and the second screw 9 rotates fewer times. Through the transmission of the second transmission component, the rotational motion of the first screw 6 is transmitted to the valve 17, causing the valve 17 to rotate fewer times as well. (Initially, the valve 17 has a large opening. When the metal plate 1 is relatively thick, fewer rotations result in a smaller closing angle for the valve 17; conversely, when the metal plate 1 is relatively thin, more rotations result in a larger closing angle for the valve 17.) This causes the opening of the valve 17 to change with the thickness of the metal plate 1. This linkage design allows for automatic adjustment of the gas flow rate during gas purging while adjusting the height of the laser cutting body 4 (i.e., adjusting the height of the laser cutting body 4 according to the thickness of the metal plate 1), simplifying the operation process and improving the automation level and work efficiency of the equipment. Meanwhile, since there may be a certain correlation between the height of the laser cutting body 4 (i.e. the thickness of the metal sheet 1 being cut) and the gas flow rate, this linkage adjustment helps to maintain a good purging effect at different cutting heights and improve the cutting quality.

[0038] Specifically, the second transmission assembly includes a third gear 18 and a fourth gear 19. The third gear 18 is coaxially and fixedly connected to the first screw 6, and the fourth gear 19 is fixedly connected to the rotation axis of the valve 17 handle. The rotation of the first screw 6 drives the third gear 18 to rotate, and the rotation of the third gear 18 drives the fourth gear 19 to rotate, thereby realizing the adjustment of the opening and closing degree of the valve 17.

[0039] See Figure 5 In this embodiment, a water tank 20 for cooling molten slag and the cut metal sheet 1 is provided below the clamping assembly. The water tank 20 is a long, box-shaped structure, and is fixedly connected to the support via a connecting structure. The second screw is rotatably connected to the water tank, achieving a rotatable connection between the second screw and the support. The water tank 20 is filled with cooling water. During the laser cutting of the metal sheet 1, high-temperature molten slag and a large amount of heat are generated, causing the temperature of the metal sheet 1 to rise. When the molten slag and the cut, high-temperature metal sheet 1 fall into the water tank 20, the cooling water quickly absorbs the heat from the molten slag and the metal sheet 1, rapidly reducing their temperature. This process reduces the thermal impact of the high-temperature molten slag and the metal sheet 1 on the surrounding environment.

[0040] A conveying assembly is installed inside the water tank 20, extending along the length of the metal sheet 1. This assembly transports the cut metal sheet 1 and consists of a horizontal section 21 and an inclined section 22 arranged sequentially. The horizontal section 21 is horizontally positioned within the water tank 20, while the inclined section 22 extends upwards beyond the water tank at its end furthest from the horizontal section 21. The horizontal and inclined sections 21 are connected, meaning they can operate synchronously. The conveying assembly transports the metal sheet 1 from inside the water tank 20 to outside. The horizontal section 21, located within the water tank 20, receives and smoothly transports the cooled metal sheet 1 as it falls into the tank. The inclined section 22 lifts the metal sheet 1 from inside the water tank 20 to outside, facilitating subsequent collection and processing of the cut metal sheet 1. The horizontal and inclined sections 21 and 22 of the conveying assembly can utilize existing roller conveyor structures connected by chains.

[0041] When the conveying assembly is started, the horizontal section 21 begins to operate under the drive of a power source (such as a motor). The cut metal sheet 1 falls onto the horizontal section 21 and is moved forward by its movement, achieving horizontal conveying within the water tank 20. During the conveying process, the metal sheet 1 remains in full contact with the cooling water to ensure effective cooling. When the horizontal section 21 moves the metal sheet 1 to the inclined section 22, it enters the inclined section. The inclined section 22, also driven by a power source, gradually lifts the metal sheet 1 due to its upward tilt, causing the cooling water on it to slide down under gravity. As the inclined section 22 continues to operate, the metal sheet 1 is finally conveyed out of the water tank 20, completing the entire conveying process.

[0042] See Figure 5-7In this embodiment: a residue cleaning assembly is provided inside the water tank 20. The residue cleaning assembly includes a reciprocating screw 23 arranged along the length of the metal plate 1, and a first slider 24 is fitted on the reciprocating screw 23. The reciprocating screw 23 has a special thread structure, and the lead of its thread changes periodically in the axial direction, which enables the first slider 24 to achieve reciprocating linear motion. A push plate 25 is provided on the first slider 24. The push plate 25 is arranged along the width of the metal plate 1, that is, along the width of the water tank 20. The lower end of the push plate 25 abuts against the bottom of the water tank 20. The push plate 25 can reciprocate along the length of the metal plate 1 at the bottom of the water tank 20 under the drive of the first slider 24. A collection trough 26 is provided at the bottom of the water tank 20. The collection trough 26 is arranged along the width of the metal plate 1, that is, parallel to the push plate 25. The collection trough 26 is located below the end of the reciprocating screw 23 away from the inclined section 22. The collection trough 26 is used to collect the residue pushed by the push plate 25. The bracket 2 is equipped with a drive assembly 27 for driving the reciprocating lead screw 23 to rotate. The drive assembly 27 is a motor, which is installed on the outer wall of the water tank 20. The output end of the motor extends into the interior of the water tank 20 and is coaxially and fixedly connected to one end of the reciprocating lead screw 23.

[0043] When the drive assembly 27 drives the reciprocating screw 23 to rotate, due to the special thread structure of the reciprocating screw 23, the first slider 24 will reciprocate linearly along the axial direction of the reciprocating screw 23. Because the push plate 25 is fixed on the first slider 24, the push plate 25 will also reciprocate along with the first slider 24. During the reciprocating motion of the push plate 25, its lower end is always in contact with the bottom of the water tank 20, which can push the residue deposited at the bottom of the water tank 20 (such as metal scraps and slag generated during the cutting process) towards the collection tank 26. When the push plate 25 moves to a position close to the collection tank 26, the residue will be pushed into the collection tank 26, thereby cleaning the residue in the water tank 20.

[0044] The conveying assembly has an output shaft. The rotation of the output shaft enables the conveying assembly to operate. A third transmission assembly is provided between the output shaft and the reciprocating screw 23. Through the third transmission assembly, the rotation of the reciprocating screw 23 can drive the output shaft to rotate.

[0045] When the drive assembly 27 drives the reciprocating screw 23 to rotate, in addition to driving the first slider 24 and push plate 25 to reciprocate for residue cleaning, the rotation of the reciprocating screw 23 is also transmitted to the output shaft of the conveying assembly through the third transmission assembly. According to the design of the third transmission assembly, the rotation of the reciprocating screw 23 will drive the output shaft to rotate at a certain speed and direction, thereby enabling the conveying assembly to start operating and conveying the cut metal sheet 1 out of the water tank 20. This linkage design allows the residue cleaning and metal sheet 1 conveying operations to be carried out simultaneously, improving the overall working efficiency of the equipment and reducing operating steps and manual intervention.

[0046] See Figure 5-6 In this embodiment: a rotating shaft is provided on the push plate 25, which is arranged along the width direction of the metal plate 1, that is, along the width direction of the push plate 25. The rotating shaft is rotatably connected to the first slider 24. A first elastic element 28 is provided between the push plate 25 and the first slider 24. One end of the first elastic element 28 is hinged to the first slider 24, and the other end is hinged to a second slider 29. The second slider 29 is slidably connected to the push plate 25 along the width direction of the push plate 25, for example, in the sliding fit of a chute slider. The side of the push plate 25 away from the collection tank 26 is inclined upwards. The inclined arrangement can reduce the water resistance when the push plate 25 moves towards the collection tank 26. Specifically, the first elastic element 28 is a first spring.

[0047] A lever 30 is provided on the side of the push plate 25 away from the collection tank 26. The lever 30 extends along the length of the push plate 25 to the inner wall of the water tank 20. An inclined first conversion plate 31 and a second conversion plate 32 are respectively provided on the side wall of the water tank 20. The ends of the first conversion plate 31 and the second conversion plate 32 away from the collection tank 26 are both inclined upwards. The first conversion plate 31 and the second conversion plate 32 are at the same horizontal position. The first conversion plate 31 is close to the collection tank 26.

[0048] As the push plate 25 moves towards the collection tank 26, its lower end abuts against the bottom of the water tank 20 under the action of the first elastic member 28. This is because the elastic force of the first elastic member 28 causes the push plate 25 to tend to press downward against the bottom of the water tank 20, allowing the push plate 25 to effectively contact and clean the residue at the bottom of the water tank 20 during its movement. When the lever 30 moves to contact the first conversion plate 31, the side of the first conversion plate 31 facing the lever 30 will exert a force on the lever 30 due to the tilted arrangement of the first conversion plate 31. Since the lever 30 is connected to the push plate 25, this force is transmitted to the push plate 25 through the lever 30, causing the push plate 25 to rotate around the axis and gradually change from an inclined state to a horizontal state. During the transition to a horizontal state, the direction of the elastic force applied by the first elastic element 28 changes, causing the second slider 29 to slide upward on the push plate 25. This changes the position of the second slider 29 on the push plate 25 from the side closer to the collection tank 26 on the axis to the side away from the collection tank 26, thus maintaining its horizontal state with the help of the first elastic element 28. It should be noted that the horizontal state here refers to the push plate 25 approaching a horizontal state. The horizontal state of the push plate 25 can maintain parallelism with the liquid surface, thereby reducing water resistance and water fluctuations during movement in the water tank 20, reducing the possibility of water overflowing from the water tank 20.

[0049] When the push plate 25 moves away from the collection groove 26, it maintains a horizontal state under the action of the first elastic member 28. When the lever 30 moves to contact the second conversion plate 32, the first conversion plate 31, being inclined, exerts a force on the lever 30 on its side facing the lever 30. Since the lever 30 is connected to the push plate 25, this force is transmitted to the push plate 25 through the lever 30, causing the push plate 25 to rotate around the axis and gradually change from a horizontal state to an inclined state. During the transition to a horizontal state, the direction of the elastic force applied by the first elastic member 28 changes, causing the second slider 29 to slide on the push plate 25. The position of the second slider 29 on the push plate 25 changes from the side of the axis away from the collection groove 26 to the side closer to the collection groove 26. The push plate 25 then returns to its upward tilted position away from the collection tank 26, with the side of the push plate 25 near the collection tank 26 abutting against the bottom of the water tank 20. This way, when it moves towards the collection tank 26 again, it can smoothly scoop up the residue, forming a complete cleaning cycle.

[0050] See Figure 5-6 In this embodiment: the output shaft is disposed on the horizontal section 21 of the conveying assembly. A slide rod 33 is disposed on the horizontal section 21, and the slide rod 33 is disposed along the length direction of the metal plate 1. The slide rod 33 is slidably connected to the water tank 20 in the vertical direction, and the slide rod 33 can move up and down relative to the water tank 20 in the vertical direction. A second elastic element 34 is disposed between the slide rod 33 and the water tank 20. The second elastic element 34 has a certain elastic force and can provide an upward restoring force for the slide rod 33. A limiting block 35 is disposed in the water tank 20 to limit the downward movement distance of the slide rod 33. The limiting block 35 is fixed at a specific position in the water tank 20. When the slide rod 33 moves downward to a certain extent, it will contact the limiting block 35, thereby preventing the slide rod 33 from moving further downward. When the horizontal section 21 is not carrying the metal plate 1, the slide rod 33 is in a higher position under the action of the second elastic element 34. When the horizontal segment 21 carries the metal plate 1, the weight of the metal plate 1 is applied to the horizontal segment 21. Since the horizontal segment 21 is connected to the slide rod 33, this weight is transmitted to the slide rod 33, causing the slide rod 33 to move downward against the elastic force of the second elastic element 34. When the slide rod 33 moves down to contact the limiting block 35, the slide rod 33 stops moving downward, and at this time the horizontal segment 21 is also in a stable lower position. This design allows the horizontal segment 21 to automatically adjust its vertical position according to whether it carries the metal plate 1, thus establishing conditions for subsequent transmission connections. Specifically, the second elastic element 34 is a second spring, one end of which is fixedly connected to the slide rod 33, and the other end is fixedly connected to the inner wall of the water tank 20.

[0051] The third transmission assembly includes a first bevel gear 36, a second bevel gear 37, a fifth gear 38, and a sixth gear 39. The first bevel gear 36 is fixedly connected to the reciprocating lead screw 23 and is coaxially arranged. The second bevel gear 37 is rotatably connected inside the water tank 20 and meshes with the first bevel gear 36. The fifth gear 38 is fixedly connected to the second bevel gear 37 and is coaxially arranged. The sixth gear 39 is fixedly connected to the output shaft and is coaxially arranged. When the horizontal section 21 carries the metal plate 1, the horizontal section 21 moves vertically downward to make the fifth gear 38 and the sixth gear 39 mesh.

[0052] Under normal circumstances, since the horizontal section 21 does not support the metal plate 1, the slide bar 33 is in a higher position, and the fifth gear 38 and the sixth gear 39 are in a disengaged state and do not engage. At this time, although the reciprocating screw 23 can rotate (driven by the drive assembly 27), the power cannot be transmitted to the output shaft, the conveying assembly does not work, while the residue cleaning assembly can work independently.

[0053] When the horizontal section 21 carries the metal sheet 1, the horizontal section 21 moves vertically downward, causing the slide bar 33 to move downward. When the slide bar 33 moves to a certain position, the fifth gear 38 and the sixth gear 39 will approach and mesh with each other. Once the fifth gear 38 and the sixth gear 39 are meshed, when the reciprocating screw 23 rotates, the power transmission path is as follows: the reciprocating screw 23 drives the first bevel gear 36 to rotate, the first bevel gear 36 drives the second bevel gear 37 to rotate, the second bevel gear 37 drives the fifth gear 38 to rotate, the fifth gear 38 then drives the sixth gear 39 to rotate, and finally the sixth gear 39 drives the output shaft to rotate, thereby starting the conveying assembly to operate and conveying the cut metal sheet 1 out.

[0054] Under normal circumstances, when the horizontal section 21 is not carrying the metal sheet 1, the conveying assembly does not operate, and only the residue cleaning assembly can operate independently. This design avoids the conveying assembly from operating when there is no need to convey sheet material, effectively reducing unnecessary energy consumption, improving the energy efficiency of the equipment, and lowering operating costs. In addition, the conveying assembly can perform intermittent conveying according to the condition of the cut metal sheet 1. When the horizontal section 21 carries the metal sheet 1, the slide bar 33 moves down to engage the fifth gear 38 and the sixth gear 39, allowing power to be transmitted, and the conveying assembly starts to operate to convey the sheet material. When the horizontal section 21 is empty of sheet material, the gears disengage, and the conveying assembly stops working. This intermittent conveying method matches the cutting condition of the metal sheet 1.

[0055] See Figure 7Specifically, the transmission connection between the inclined section 22 and the horizontal section 21 is as follows: A first shaft and a second shaft are respectively provided at their respective ends. A third transmission wheel 40 and a fourth transmission wheel 41 are coaxially fixedly connected to the first and second shafts, respectively. A fifth transmission wheel 42 is provided inside the water tank 20. A third elastic element 43 (a third spring) is provided between the fifth transmission wheel 42 and the side wall of the water tank 20. One end of the third spring is hinged to the axis of the fifth transmission wheel 42, and the other end is hinged to the side wall of the water tank 20. The third transmission wheel 40, the fourth transmission wheel 41, and the fifth transmission wheel 42 are arranged in a triangular shape and are connected by a belt, chain, or other transmission mechanism.

[0056] In this embodiment: a cleaning roller is rotatably connected to the bracket 2. The cleaning roller is set along the width direction of the metal plate 1 (not shown in the figure). The cleaning roller is horizontally set above the inclined section 22. The cleaning roller is connected to the inclined section 22 in a transmission manner. The operation of the inclined section 22 can drive the cleaning roller to rotate in order to clean the cut metal plate 1.

[0057] When the inclined section 22 is running, it drives the cleaning roller to rotate. When the metal sheet 1 passes the cleaning roller located above the inclined section 22, the rotating cleaning roller comes into contact with the surface of the metal sheet 1. The surface of the cleaning roller is usually covered with cleaning materials, such as bristles, sponges, or cleaning cloths. These cleaning materials wipe and brush the surface of the metal sheet 1 during rotation, removing cutting debris, oil, dust, and other impurities from the surface of the metal sheet 1, thereby achieving the purpose of cleaning the metal sheet 1. This technical solution automates the cleaning of the metal sheet 1, eliminating the need for manual cleaning, improving production efficiency, and reducing labor intensity. During the conveying process of the metal sheet 1, the cleaning roller automatically cleans it, saving time and manpower for additional cleaning procedures.

[0058] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A railway turnout plate cutting device for cutting metal sheets to produce railway turnout plates, comprising a support, a mounting part movably connected to the support, a laser cutting body vertically mounted on the mounting part, the laser cutting body being positioned above the metal sheet, characterized in that: The mounting portion is provided with a sliding frame which is slidably connected with the mounting portion along the vertical direction, the sliding frame is fixedly connected with the laser cutting body, the mounting portion is vertically provided with a first screw rod which is rotatably connected with the mounting portion, and the first screw rod is threadedly connected with the sliding frame; The support is provided with two clamping assemblies, the two clamping assemblies are respectively arranged on the two sides of the metal plate in the length direction, the clamping assembly comprises an upper clamping plate and a lower clamping plate, the upper clamping plate and the lower clamping plate are respectively arranged on the upper side and the lower side of the metal plate and are arranged along the length direction of the metal plate, the support is rotatably connected with a second screw rod, the second screw rod is vertically arranged on the upper clamping plate and the lower clamping plate, the upper clamping plate and / or the lower clamping plate are threadedly connected with the second screw rod, the upper clamping plate and the lower clamping plate can be moved close to or away from each other by rotating the second screw rod, and a first transmission assembly is arranged between any one of the second screw rods and the first screw rod, and the rotation of the second screw rod can drive the rotation of the first screw rod through the first transmission assembly.

2. A railway switch plate cutting device according to claim 1, characterized in that: The upper clamping plate and the lower clamping plate are threadedly connected with the second screw rod, and the rotation direction of the thread between the upper clamping plate and the second screw rod is opposite to the rotation direction of the thread between the lower clamping plate and the second screw rod; A support wheel is arranged between the upper clamping plate and the lower clamping plate, the support wheel is rotatably connected with the support, the axis direction of the support wheel is the same as the width direction of the metal plate, and the support wheel is used for bearing the conveying metal plate when the clamping assembly is not working.

3. A railway switch plate cutting device according to claim 2, characterised in that: A gas blowing assembly is arranged on the mounting portion, the gas blowing assembly is communicated with an exhaust pipe, a valve for adjusting the gas flow is arranged on the exhaust pipe, a second transmission assembly is arranged between the valve and the first screw rod, and the rotation of the first screw rod can change the closing degree of the valve through the second transmission assembly.

4. A railway switch plate cutting device according to any one of claims 1 to 3, characterized in that: A water tank for cooling the slag and the cut metal plate is arranged below the clamping assembly, a conveying assembly is arranged in the water tank, the conveying assembly is arranged along the length direction of the metal plate, the conveying assembly is used for conveying the cut metal plate, the conveying assembly is composed of a horizontal section and an inclined section which are arranged in sequence, the horizontal section is horizontally arranged in the water tank, the inclined section extends upward away from one end of the horizontal section and penetrates out of the water tank, and the horizontal section and the inclined section are transmissionally connected.

5. A railway switch plate cutting device according to claim 4, wherein: A residue cleaning assembly is arranged in the water tank, the residue cleaning assembly comprises a reciprocating screw rod which is arranged along the length direction of the metal plate, a first sliding block is matched with the reciprocating screw rod, a push plate is arranged on the first sliding block, the push plate is arranged along the width direction of the metal plate, the lower end of the push plate abuts against the bottom of the water tank, the bottom of the water tank is provided with a collecting groove which is arranged along the width direction of the metal plate, and the collecting groove is located below one end of the reciprocating screw rod which is away from the inclined section; The conveying assembly has an output shaft, the rotation of the output shaft can drive the operation of the conveying assembly, a third transmission assembly is arranged between the output shaft and the reciprocating screw rod, and the rotation of the reciprocating screw rod can drive the rotation of the output shaft through the third transmission assembly. A driving assembly for driving the reciprocating screw rod to rotate is arranged on the support.

6. A railway switch plate cutting device according to claim 5, wherein: The push plate is provided with a rotating shaft arranged along the width direction of the metal plate, the rotating shaft is rotationally connected with the first sliding block, a first elastic member is arranged between the push plate and the first sliding block, one end of the first elastic member is hingedly connected with the first sliding block, the other end is hingedly connected with a second sliding block, the second sliding block is slidingly connected with the push plate along the width direction of the push plate, and the push plate is upwardly inclined on the side away from the collecting groove; The push plate is provided with a push rod on the side away from the collecting groove, the push rod extends to the sink side wall along the length direction of the push plate, the sink side wall is respectively provided with an inclined first conversion plate and a second conversion plate, the first conversion plate and the second conversion plate are upwardly inclined on the side away from the collecting groove, the first conversion plate and the second conversion plate are located at the same horizontal position, and the first conversion plate is close to the collecting groove. When the push plate moves towards the collecting groove, the lower end of the push plate is abutted against the sink bottom under the action of the first elastic member, when the push rod moves to contact the first conversion plate, the first conversion plate pushes the push plate to rotate through the push rod to make the push plate horizontal, when the push plate moves away from the collecting groove, the push plate maintains the horizontal state under the action of the first elastic member, when the push rod moves to contact the second conversion plate, the second conversion plate pushes the push plate to rotate reversely through the push rod to make the side close to the collecting groove abut against the sink bottom.

7. A railway switch plate cutting device according to claim 5, wherein: The output shaft is arranged on the horizontal section of the conveying assembly, the horizontal section is provided with a sliding rod arranged along the length direction of the metal plate, the sliding rod is slidingly connected with the sink along the vertical direction, a second elastic member is arranged between the sliding rod and the sink, and a limiting block for limiting the downward movement distance of the sliding rod is arranged in the sink. The third transmission assembly comprises a first bevel gear, a second bevel gear, a fifth gear and a sixth gear, the fifth bevel gear is fixedly connected with the reciprocating lead screw and coaxially arranged, the sixth bevel gear is rotationally connected in the sink, the sixth bevel gear is engaged with the fifth bevel gear, the fifth gear is fixedly connected with the sixth bevel gear and coaxially arranged, the sixth gear is fixedly connected with the output shaft and coaxially arranged, and when the horizontal section carries the metal plate, the horizontal section vertically moves downward to make the fifth gear and the sixth gear engaged.

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