Intelligent laser cutting and welding system for machining and method thereof

Abstract

The invention relates to the technical field of intelligent laser cutting, and discloses an intelligent laser cutting and welding system for machining and a method of the intelligent laser cutting and welding system for machining. The device is reasonable in design, a unique inertia-driven cooling water recycling mechanism is adopted, a traditional independent water pump is omitted, cooling liquid circulation is completed through the movement inertia of equipment, system energy consumption is greatly reduced, the innovative torsion monitoring and on-demand lubrication linkage design is adopted, movement resistance can be sensed in real time, and automatic and accurate oil injection can be achieved; abrasion of key moving parts is effectively reduced, the service life of equipment is prolonged, a closed-loop temperature control system intelligently adjusts the flow of cooling water according to the real-time temperature of a laser head, it is guaranteed that the cutting head is always in the optimal working temperature interval, high-precision laser focusing and stable energy output are guaranteed, and the quality and consistency of cutting seams are improved.

Description

Technical Field

[0001] This invention relates to the field of laser intelligent cutting technology, and in particular to a laser intelligent cutting and welding system and method for machining. Background Technology

[0002] Currently, laser cutting and welding equipment is widely used in modern machining, becoming an important means of achieving high-precision and high-efficiency processing. Such equipment typically includes a fixed base frame, a work platform supporting the workpiece, a servo drive mechanism that moves the cutting head within a two-dimensional plane, and a cutting and welding head that provides a high-energy laser beam. The laser cutting head generates a significant amount of heat during operation, therefore it is generally equipped with a circulating water cooling system to ensure the temperature stability of its critical optical components. Meanwhile, the moving mechanism often relies on gear and rack or lead screw transmissions, combined with precision linear guides to achieve precise positioning of the cutting head. The overall structure of the equipment tends towards integration and large-scale design to meet the processing needs of large-size sheet metal.

[0003] However, existing technologies still have several significant drawbacks. The primary problem is that traditional water-cooling systems generally rely on additional electric water pumps to drive coolant circulation, which not only increases overall energy consumption and operating noise but also poses a potential point of failure for the pump itself. Secondly, the guide rails and transmission components of the equipment's moving mechanism are prone to abnormal frictional resistance and even wear due to insufficient or improper lubrication during prolonged high-load operation. Existing solutions often rely on periodic manual maintenance or simple timed lubrication, failing to detect and respond to changes in frictional resistance in real time, frequently leading to decreased accuracy or premature component failure. Furthermore, the strong inertial loads generated during acceleration and deceleration can easily cause impact damage to the fragile precision optical and mechanical structures inside the laser cutting head; existing systems lack effective inertial impact monitoring and active suppression mechanisms. In addition, traditional methods are inefficient and inconvenient for positioning and leveling large-size plates. Finally, existing cooling systems often lack intelligent closed-loop temperature control capabilities for the laser head, making it difficult to dynamically optimize cooling intensity based on real-time operating conditions, affecting the stability of processing results. Therefore, we propose a laser intelligent cutting and welding system and method for machining to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned in the background section by proposing a laser intelligent cutting and welding system and method for machining.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A laser intelligent cutting and welding system for machining includes: a fixing mechanism, a supporting mechanism, a moving mechanism, and two sets of laser cutting mechanisms. Each laser cutting mechanism includes: a housing, a second servo motor, a third servo motor, a second gear, and a laser cutting head. The housing houses a cooling mechanism and a torque monitoring mechanism. The cooling mechanism includes: a heat-conducting frame, a recovery tank, and a water storage tank. The heat-conducting frame is fixedly connected between the recovery tank and the water storage tank. A pumping frame and a fixing frame are fixedly installed inside the recovery tank. A pumping pipe and an outlet pipe are connected to the bottom of the pumping frame. A piston plate is slidably connected inside the pumping frame. A connecting rod is fixedly connected to the top of the piston plate. A connecting plate is fixedly connected to the top of the connecting rod. A translation frame is slidably installed inside the fixing frame. A moving plate is slidably sleeved on the outer side of the translation frame. A ball seat is fixedly connected to the bottom of the moving plate. A ball bearing is provided at the bottom of the ball seat, and the ball bearing abuts against the top of the connecting plate.

[0006] Preferably, the heat-conducting frame is connected to an inlet pipe and an outlet pipe on both sides, a control valve is installed inside the inlet pipe, a fixed partition is fixedly installed inside the water storage tank, the other end of the inlet pipe is connected to the bottom of the fixed partition, the other end of the outlet pipe is connected to the recycling tank, and the heat-conducting frame is sleeved on the outside of the laser cutting head. The pumping pipe is equipped with a first one-way valve, the outlet pipe is equipped with a second one-way valve, the other end of the outlet pipe is connected to the top of the water storage tank, and the outside of the water storage tank is connected to a water inlet pipe and a water outlet pipe, both of which are equipped with water valves. The recycling bin is fixedly equipped with an upper partition and a lower partition. The connecting rod is slidably connected in the upper partition. A return spring is fixedly connected between the upper partition and the connecting plate. A spherical groove is opened on the top of the connecting plate. Multiple first pressure sensors are fixedly connected to the outer edge of the top of the connecting plate. A pressure ring is provided at the top of the first pressure sensor.

[0007] Preferably, both sides of the translation frame are fixedly connected with transverse springs, a frame-shaped guide rail is fixedly installed inside the fixed frame, a transverse hole is opened on one side of the moving plate, a connecting frame is slidably installed in the transverse hole, the connecting frame and the translation frame are both slidably sleeved on the outside of the frame-shaped guide rail, the other end of the transverse spring is fixedly connected to the frame-shaped guide rail, and longitudinal springs are fixedly connected to both the front and rear sides of the moving plate, the other end of the longitudinal springs is fixedly connected to the translation frame.

[0008] Preferably, the torque monitoring mechanism includes: a fixed base, a drive plate, a connecting plate, a pressure frame, a connecting ring, and a second pressure sensor. The fixed base is fixedly connected to the housing. A connecting shaft is fixedly connected to the bottom of the connecting plate. The connecting shaft is rotatably installed in the fixed base, and the bottom end of the connecting shaft is fixedly connected to the second gear. The pressure frame abuts against the top of the second pressure sensor, and the pressure frame is rotatably sleeved on the outside of the connecting ring. Multiple inclined rods are fixedly connected to the outside of the connecting frame. The top of the connecting plate has multiple sliding holes, in which a sliding plate is slidably installed. A limit strip is fixedly installed in the sliding hole, and the sliding plate is slidably sleeved on the outside of the limit strip. An oblique hole is opened on one side of the sliding plate, and an oblique rod is slidably connected in the corresponding oblique hole. A connecting post is fixedly connected to the top of the sliding plate. The drive plate is fixedly connected to the output shaft of the second servo motor, and the output shaft of the second servo motor is rotatably connected to the top of the connecting plate. A torsion spring is fixedly connected between the connecting plate and the drive plate. An arc-shaped hole is opened on the top of the drive plate, and the connecting post is movably inserted into the corresponding arc-shaped hole. The second pressure sensor is fixedly connected to the top of the fixed base, and a vertical rod is fixedly connected to the top of the fixed base. The vertical rod is slidably connected in the pressure frame.

[0009] Preferably, an equipment box is fixedly installed on the top of the housing, and a controller is installed inside the equipment box. A mounting bracket is fixedly connected to one side of the laser cutting head. The mounting bracket is slidably installed inside the housing. The second servo motor and the third servo motor are both fixedly connected to the top of the housing. A lead screw is fixedly connected to the output shaft of the third servo motor. The mounting bracket is threaded onto the outside of the lead screw. A positioning seat is fixedly installed inside the housing, and the lead screw is rotatably installed in the positioning seat. The housing is equipped with a lubrication mechanism, which includes an oil reservoir, an oil control valve, and a lubrication pipe. The top of the oil control valve is connected to the oil reservoir, and the lubrication pipe is connected to the other end of the oil control valve. A temperature sensor is installed on the outside of the laser cutting head, and an optical fiber is connected to the top of the laser cutting head.

[0010] Preferably, the fixing mechanism includes: a base, a first guide rail, a first rack, a first folding protective cover, and a protective frame. The first guide rail and the first rack are fixedly connected to the top of the base, one end of the first folding protective cover is fixedly connected to the protective frame, and the other end of the first folding protective cover is fixedly connected to one end of the base.

[0011] Preferably, the moving mechanism includes: a crossbeam, a first servo motor, a first gear, and a first guide frame. The first guide frame is slidably sleeved on the outside of the first guide rail. The other end of the protective frame is fixedly connected to the crossbeam. The first servo motor is fixedly installed on the top of the crossbeam. The first gear is fixedly connected to the output shaft of the first servo motor. The first gear meshes with the first rack. The top of the crossbeam is fixedly connected to a second rack and a second guide rail. The second gear meshes with the second rack. Both ends of the crossbeam are fixedly connected to side plates. The inner side of the side plates is fixedly connected to a second folding protective cover. The other end of the second folding protective cover is fixedly connected to the outer side of the corresponding housing. The bottom of the housing is fixedly installed with a second guide frame. The second guide frame is slidably sleeved on the outer side of the second guide rail.

[0012] Preferably, the support mechanism includes: a workbench, a support net, and a lifting mechanism. The support net is fixedly connected to the top of the workbench, the bottom of the workbench is provided with multiple casters, and the base is fixedly connected to one side of the workbench. The lifting mechanism includes: a hinge frame, an electric push rod, and multiple mounting seats. A rotating column is rotatably mounted inside the mounting seat. A lifting column is fixedly connected to the top of the rotating column, and a drive arm is fixedly connected to the bottom of the rotating column. One side of each of the multiple drive arms is rotatably connected to the same linkage rod, and the other end of one of the drive arms is hinged to a bracket. The bracket is fixedly connected to the output end of the first electric push rod, and a hinge seat is fixedly mounted at the bottom of the first electric push rod. The hinge seat is rotatably mounted inside the hinge frame, and both the hinge frame and the mounting seats are fixedly mounted on the outside of the worktable.

[0013] This invention also provides a laser intelligent cutting and welding method for machining, applied to the aforementioned laser intelligent cutting and welding system for machining, comprising the following steps: S1: Place the plate to be processed on top of the support net, start the electric push rod to move the bracket, drive the drive arm to rotate, and drive other drive arms to rotate through the linkage rod, and drive the rotating column and lifting column to rotate, thereby lifting the plate; S2: Start the third servo motor to drive the lead screw to rotate. The lead screw drives the laser cutting head to move up and down through the threaded transmission with the mounting bracket. Adjust the height of the laser cutting head, start the laser cutting head, the first servo motor and the second servo motor. The first servo motor drives the first gear to rotate. Through the meshing of the first gear and the first rack, and with the cooperation of the first guide frame and the first guide rail, the crossbeam moves along the first guide rail. The second servo motor drives the second gear to rotate. Through the meshing of the second gear and the cooperation of the second guide frame and the second guide rail, the second gear drives the housing to move along the second guide rail. Thus, control the horizontal movement of the laser cutting head as needed. Laser cutting is achieved through the high-energy laser beam output by the laser cutting head. S3: The temperature sensor monitors the temperature of the laser cutting head. When the temperature reaches the preset value, the controller opens the control valve to introduce the cooling water above the fixed partition into the heat conduction frame through the water inlet pipe. The heat conduction frame is in direct contact with the laser cutting head, thereby removing the heat generated by the laser cutting head and cooling it down. Afterward, the cooling water is introduced into the recovery tank through the water outlet pipe. The controller automatically adjusts the opening of the control valve according to the temperature value monitored by the temperature sensor, thereby adjusting the water flow in the heat conduction frame to meet the needs of different working conditions. S4: During the horizontal movement of the casing, including acceleration, deceleration, start-up, and stop, the moving plate moves horizontally relative to the fixed frame due to inertia, driving the ball seat and ball bearings. The ball bearings, through contact with the spherical groove on the top of the connecting plate, cause the connecting plate to move downwards. The connecting plate, via the connecting rod, drives the piston plate to move synchronously. When the piston plate moves upwards, it creates negative pressure in the water suction frame, drawing cooling water from the recovery tank into the water suction frame. When the piston plate moves downwards, it causes the cooling water in the water suction frame to enter the outlet pipe and flow back into the storage tank, facilitating... The system then circulates and continuously cools the laser cutting head. After cutting, the water valve is opened and the heated cooling wastewater in the water tank is drained through the drain pipe. New cooling water is then injected through the water inlet pipe to facilitate continuous laser processing. This causes the water temperature in the water tank to rise continuously, affecting the cooling effect. When the ball moves too much and comes into contact with the pressure ring, the first pressure sensor detects the pressure and adjusts the operating speed of the first and second servo motors through the controller. This adjusts the acceleration of the housing movement to prevent excessive acceleration and damage to the inside of the laser cutting head. S5: When friction exists between the second guide frame and the second guide rail, causing resistance to the movement of the housing, the rotation of the second gear will be resisted, which in turn will resist the rotation of the connecting shaft and the connecting plate. This causes the torsion spring to undergo torsional deformation until the rotational resistance of the connecting plate is balanced, resulting in relative rotation between the connecting plate and the drive plate. The drive plate, through the cooperation of the arc-shaped hole and the connecting column, drives the connecting column to move outward, and drives the slide plate to move outward along the guide bar. The slide plate, through the cooperation of the inclined rod, drives the connecting ring to move downward. The connecting ring drives the pressure frame to move downward and compresses the second pressure sensor. Thus, the pressure value monitored by the second pressure sensor can be used to determine the movement resistance of the housing. When the resistance exceeds the preset value, the controller controls the oil control valve to open, and the lubricating oil in the oil tank is introduced into the crossbeam and the second guide rail through the lubrication pipe to achieve automatic lubrication.

[0014] Compared with the prior art, the present invention provides a laser intelligent cutting and welding system and method for machining, which has the following beneficial effects: (1) Through direct contact heat conduction between the heat-conducting frame and the laser cutting head, combined with a unique water-cooling circulation path design, the high temperature generated during the cutting process is efficiently removed; more importantly, its cooling water recovery mechanism cleverly utilizes the inertial force generated by the horizontal movement of the equipment to drive the pumping mechanism to automatically pump the heated cooling water in the recovery tank back to the storage tank; this design completely eliminates the need for an independent water pump motor in the traditional cooling system, significantly reducing the overall energy consumption of the equipment; at the same time, the heat transfer path is short and efficient, the heat-conducting frame tightly wraps the heat source, and the forced convection heat exchange process of the water flow in it greatly optimizes the cooling efficiency, ensuring that the laser cutting head can maintain a stable working temperature under high temperature conditions, ensuring cutting quality and equipment life, while achieving a significant reduction in operating costs; (2) The design introduces an innovative torque monitoring mechanism, which can sense the abnormal resistance encountered by the housing during the movement along the guide rail in real time. When the resistance exceeds the preset safety threshold, the system automatically triggers the lubrication mechanism through the controller to accurately add the lubricating oil in the oil tank to the contact surface of the guide rail and transmission components. This active, on-demand lubrication method based on actual working conditions can form an effective oil film protective layer more accurately on the friction interface compared with traditional timed and quantitative lubrication, significantly reducing the hard friction wear of key moving parts such as transmission gear rack, guide frame and guide rail. Under long-term operation, it greatly delays the precision decay and fatigue damage of the components, effectively avoids crawling, jamming or even damage caused by insufficient lubrication, significantly extends the overall service life of the moving mechanism, and ensures the stability and positioning accuracy of the equipment during long-term operation. (3) Continuous online temperature monitoring is performed by a temperature sensor integrated on the outer wall of the laser cutting head; the controller dynamically adjusts the opening of the control valve in the cooling water circulation pipeline according to the real-time temperature data, thereby accurately controlling the flow rate of cooling water through the heat-conducting frame; this closed-loop temperature control system can quickly respond and intelligently adjust the cooling intensity according to different working conditions such as laser power, cutting speed, and material characteristics, ensuring that the working temperature of the laser cutting head is always strictly maintained within the preset optimal process window; stable working temperature is the key prerequisite for ensuring the quality of high-precision laser focusing spot and maintaining stable laser energy output, and directly determines the core quality indicators such as the perpendicularity, smoothness, and size of the heat-affected zone of the cutting edge. Therefore, this design significantly improves the consistency of the cutting seam and the overall processing quality level; (4) The inertial force generated by the housing during start-up, acceleration and deceleration is cleverly converted into the driving force of the piston movement of the cooling system. At the same time, the inertial sensing structure embedded in the system plays an important role. When the housing accelerates too much, the inertial element drives the ball to generate an over-limit displacement and triggers the first pressure sensor on the pressure ring. The control system can instantly capture this abnormal signal. The controller then actively intervenes and adjusts the running command parameters of the first servo motor and the second servo motor to quickly reduce the rate of change of acceleration or deceleration of the housing. This fast closed-loop feedback adjustment mechanism effectively weakens the instantaneous impact load of the huge inertial impact force generated by the equipment during violent speed change on the internal precision optical elements, transmission components and support structure. It greatly reduces the risk of component loosening and breakage caused by vibration and the position displacement or damage of optical elements, and effectively ensures the structural safety and long-term operational reliability of the entire laser cutting head and its drive mechanism. (5) The integrated lifting function of the support mechanism greatly simplifies the positioning and fixing process of the plate; by simply starting a single electric push rod, multiple lifting columns can be driven to rotate smoothly upward through the ingenious linkage transmission mechanism, lifting the plate as a whole off the surface of the support net; this allows the operator to conveniently place the tooling fixtures or measuring instruments required for precise positioning under the plate; the lifting positioning method effectively avoids the problems of indentation or obstruction of the cutting path that may be caused to the plate surface by the traditional pressing method; combined with the dual laser cutting head design of the system, this function further enhances the adaptability of the equipment to complex plates of different sizes, greatly shortens the plate positioning and adjustment time, reduces auxiliary work time, and significantly improves the overall processing efficiency and production cycle, especially suitable for processing complex parts with multiple varieties and small batches or requiring high-precision positioning; This invention features a rational design and a unique inertial-driven cooling water recovery mechanism that eliminates the need for a traditional independent water pump. It utilizes the equipment's own inertia to complete the coolant circulation, significantly reducing system energy consumption. The innovative torque monitoring and on-demand lubrication linkage design can sense movement resistance in real time and automatically and accurately inject oil, effectively reducing wear on key moving parts and extending the equipment's service life. The closed-loop temperature control system intelligently adjusts the cooling water flow based on the real-time temperature of the laser head, ensuring that the cutting head is always within the optimal operating temperature range. This guarantees high-precision laser focusing and stable energy output, improving the quality and consistency of the cutting seam. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a laser intelligent cutting and welding system for machining proposed in this invention; Figure 2 This is a three-dimensional structural diagram of the fixing mechanism proposed in this invention; Figure 3 This is a three-dimensional structural diagram of the support mechanism proposed in this invention; Figure 4 This is a three-dimensional structural diagram of the lifting mechanism proposed in this invention; Figure 5 This is a partial structural schematic diagram of the lifting mechanism proposed in this invention; Figure 6 This is a three-dimensional structural diagram of the moving mechanism proposed in this invention; Figure 7 This is a cross-sectional structural schematic diagram of the moving mechanism proposed in this invention; Figure 8 This is a three-dimensional structural diagram of the moving mechanism proposed in this invention from another perspective. Figure 9 This is a three-dimensional structural diagram of the laser cutting mechanism proposed in this invention; Figure 10 This is a three-dimensional structural diagram of the laser cutting mechanism proposed in this invention from another perspective; Figure 11 This is a cross-sectional structural schematic diagram of the laser cutting mechanism proposed in this invention; Figure 12 This is a three-dimensional structural diagram of the cooling mechanism proposed in this invention; Figure 13 This is a cross-sectional view of the cooling mechanism proposed in this invention. Figure 14 for Figure 13 A magnified view of part A in the middle; Figure 15 for Figure 13 A magnified view of part B in the middle section; Figure 16 for Figure 15 A magnified view of part C in the middle; Figure 17 This is a partial three-dimensional structural schematic diagram of the cooling mechanism proposed in this invention; Figure 18 This is a three-dimensional structural schematic diagram of the torque monitoring mechanism proposed in this invention; Figure 19 This is a cross-sectional view of the torque monitoring mechanism proposed in this invention. Figure 20 for Figure 19 A magnified view of part D in the middle; Figure 21 This is a partial three-dimensional structural schematic diagram of the torque monitoring mechanism proposed in this invention; Figure 22 This is a partial three-dimensional structural diagram of the torque monitoring mechanism proposed in this invention from another perspective; Figure 23 This is a three-dimensional structural diagram of the lubrication mechanism proposed in this invention.

[0016] In the diagram: 1. Fixing mechanism; 101. Base; 102. First guide rail; 103. First rack; 104. First folding protective cover; 105. Protective frame; 2. Supporting mechanism; 201. Workbench; 202. Support net; 203. Lifting mechanism; 2031. Mounting seat; 2032. Rotating column; 2033. Lifting column; 2034. Drive arm; 2035. Linkage rod; 2036. Bracket; 2037. Electric push rod; 2038. Articulated frame; 3. Moving mechanism; 301. Crossbeam; 302. Second guide rail; 303. Second rack; 304. Side plate; 305, Second folding protective cover; 306, First servo motor; 307, First gear; 308, First guide frame; 4. Laser cutting mechanism; 401, Housing; 402, Second servo motor; 403, Second gear; 404, Third servo motor; 405, Lead screw; 406, Positioning seat; 407, Mounting bracket; 408, Laser cutting head; 409, Temperature sensor; 410, Equipment box; 411, Controller; 412, Fiber optic cable; 413, Second guide frame; 5. Cooling mechanism; 501, Heat conduction frame; 502, Recycling bin; 503. Water storage tank; 504, Water inlet pipe; 505, Drain pipe; 506, Outlet pipe; 507, Fixed partition; 508, Water inlet pipe; 509, Control valve; 510, Water outlet pipe; 511, Pumping pipe; 512, First check valve; 513, Lower partition; 514, Pumping frame; 515, Second check valve; 516, Piston plate; 517, Connecting rod; 518, Ball seat; 519, Upper partition; 520, Return spring; 521, Connecting plate; 522, Ball bearing; 523, Moving plate; 524, Translation frame; 525, Fixed frame; 526, Frame-type guide rail; 52 7. Longitudinal spring; 528. Transverse spring; 529. Connecting frame; 530. Pressure ring; 531. First pressure sensor; 6. Torque monitoring mechanism; 601. Fixed seat; 602. Connecting plate; 603. Drive plate; 604. Connecting shaft; 605. Vertical rod; 606. Second pressure sensor; 607. Pressure frame; 608. Connecting ring; 609. Diagonal rod; 610. Slide plate; 611. Limiting strip; 612. Connecting column; 613. Arc-shaped hole; 614. Torsion spring; 7. Lubrication mechanism; 701. Oil reservoir; 702. Oil control valve; 703. Lubrication pipe. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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 invention.

[0019] Reference Figure 1-23 A laser intelligent cutting and welding system for machining includes: a fixing mechanism 1, a supporting mechanism 2, a moving mechanism 3, and two sets of laser cutting mechanisms 4. Each laser cutting mechanism 4 includes: a housing 401, a second servo motor 402, a third servo motor 404, a second gear 403, and a laser cutting head 408. A cooling mechanism 5 and a torque monitoring mechanism 6 are installed inside the housing 401. The cooling mechanism 5 includes: a heat-conducting frame 501, a recovery box 502, and a water storage tank 503. The heat-conducting frame 501 is fixedly connected between the recovery box 502 and the water storage tank 503. A suction pump is fixedly installed inside the recovery box 502. The water frame 514 and the fixed frame 525 are connected. The bottom of the water frame 514 is connected to the water pipe 511 and the outlet pipe 506. The piston plate 516 is slidably connected inside the water frame 514. The top of the piston plate 516 is fixedly connected to the connecting rod 517. The top of the connecting rod 517 is fixedly connected to the connecting plate 521. The translation frame 524 is slidably installed inside the fixed frame 525. The outer side of the translation frame 524 is slidably sleeved with the moving plate 523. The bottom of the moving plate 523 is fixedly connected to the ball seat 518. The bottom of the ball seat 518 is provided with a ball 522. The ball 522 abuts against the top of the connecting plate 521.

[0020] In this embodiment, the two sides of the heat-conducting frame 501 are respectively connected to the water inlet pipe 508 and the water outlet pipe 510. The water inlet pipe 508 is equipped with a control valve 509. The water storage tank 503 is fixedly installed with a fixed partition 507. The other end of the water inlet pipe 508 is connected to the bottom of the fixed partition 507. The other end of the water outlet pipe 510 is connected to the recycling tank 502. The heat-conducting frame 501 is sleeved on the outside of the laser cutting head 408. A first check valve 512 is installed in the water pumping pipe 511, and a second check valve 515 is installed in the outlet pipe 506. The other end of the outlet pipe 506 is connected to the top of the water storage tank 503. A water inlet pipe 504 and a water outlet pipe 505 are connected to the outside of the water storage tank 503. A water valve is installed in both the water inlet pipe 504 and the water outlet pipe 505. An upper partition 519 and a lower partition 513 are fixedly installed inside the recycling bin 502. A connecting rod 517 is slidably connected inside the upper partition 519. A return spring 520 is fixedly connected between the upper partition 519 and the connecting plate 521. A spherical groove is provided on the top of the connecting plate 521. Multiple first pressure sensors 531 are fixedly connected to the outer edge of the top of the connecting plate 521. A pressure ring 530 is provided at the top of the first pressure sensor 531.

[0021] In this embodiment, transverse springs 528 are fixedly connected to both sides of the translation frame 524, a frame-shaped guide rail 526 is fixedly installed inside the fixed frame 525, a transverse hole is opened on one side of the moving plate 523, a connecting frame 529 is slidably installed in the transverse hole, and the connecting frame 529 and the translation frame 524 are both slidably sleeved on the outside of the frame-shaped guide rail 526. The other end of the transverse spring 528 is fixedly connected to the frame-shaped guide rail 526, and longitudinal springs 527 are fixedly connected to both the front and rear sides of the moving plate 523. The other end of the longitudinal spring 527 is fixedly connected to the translation frame 524.

[0022] In this embodiment, the torque monitoring mechanism 6 includes: a fixed base 601, a drive disk 603, a connecting disk 602, a pressure frame 607, a connecting ring 608, and a second pressure sensor 606. The fixed base 601 is fixedly connected to the housing 401. A connecting shaft 604 is fixedly connected to the bottom of the connecting disk 602. The connecting shaft 604 is rotatably installed in the fixed base 601, and the bottom end of the connecting shaft 604 is fixedly connected to the second gear 403. The pressure frame 607 abuts against the top of the second pressure sensor 606, and the pressure frame 607 is rotatably sleeved on the outside of the connecting ring 608. A plurality of inclined rods 609 are fixedly connected to the outside of the connecting frame. The top of the connecting plate 602 has multiple sliding holes, in which a sliding plate 610 is slidably installed. A limit strip 611 is fixedly installed in the sliding holes. The sliding plate 610 is slidably sleeved on the outside of the limit strip 611. An oblique hole is opened on one side of the sliding plate 610, and an oblique rod 609 is slidably connected in the corresponding oblique hole. A connecting post 612 is fixedly connected to the top of the sliding plate 610. The drive plate 603 is fixedly connected to the output shaft of the second servo motor 402, and the output shaft of the second servo motor 402 is rotatably connected to the top of the connecting plate 602. A torsion spring 614 is fixedly connected between the connecting plate 602 and the drive plate 603. An arc-shaped hole 613 is opened on the top of the drive plate 603, and the connecting post 612 is movably inserted into the corresponding arc-shaped hole 613. The second pressure sensor 606 is fixedly connected to the top of the fixed base 601, and a vertical rod 605 is fixedly connected to the top of the fixed base 601. The vertical rod 605 is slidably connected in the pressure frame 607.

[0023] In this embodiment, an equipment box 410 is fixedly installed on the top of the housing 401. A controller 411 is installed inside the equipment box 410. A mounting bracket 407 is fixedly connected to one side of the laser cutting head 408. The mounting bracket 407 is slidably installed inside the housing 401. The second servo motor 402 and the third servo motor 404 are both fixedly connected to the top of the housing 401. A lead screw 405 is fixedly connected to the output shaft of the third servo motor 404. The mounting bracket 407 is threaded onto the outside of the lead screw 405. A positioning seat 406 is fixedly installed inside the housing 401. The lead screw 405 is rotatably installed inside the positioning seat 406. A lubrication mechanism 7 is provided inside the housing 401. The lubrication mechanism 7 includes an oil reservoir 701, an oil control valve 702, and a lubrication pipe 703. The top end of the oil control valve 702 is connected to the oil reservoir 701, and the lubrication pipe 703 is connected to the other end of the oil control valve 702. A temperature sensor 409 is provided on the outside of the laser cutting head 408, and an optical fiber 412 is connected to the top of the laser cutting head 408.

[0024] In this embodiment, the fixing mechanism 1 includes: a base 101, a first guide rail 102, a first rack 103, a first folding protective cover 104, and a protective frame 105. The first guide rail 102 and the first rack 103 are fixedly connected to the top of the base 101. One end of the first folding protective cover 104 is fixedly connected to the protective frame 105, and the other end of the first folding protective cover 104 is fixedly connected to one end of the base 101.

[0025] In this embodiment, the moving mechanism 3 includes: a crossbeam 301, a first servo motor 306, a first gear 307, and a first guide frame 308. The first guide frame 308 is slidably sleeved on the outside of the first guide rail 102. The other end of the protective frame 105 is fixedly connected to the crossbeam 301. The first servo motor 306 is fixedly installed on the top of the crossbeam 301. The first gear 307 is fixedly connected to the output shaft of the first servo motor 306. The first gear 307 meshes with the first rack 103. The top of the crossbeam 301 is fixedly connected to a second rack 303 and a second guide rail 302. The second gear 403 meshes with the second rack 303. Both ends of the crossbeam 301 are fixedly connected to side plates 304. The inner side of the side plate 304 is fixedly connected to a second folding protective cover 305. The other end of the second folding protective cover 305 is fixedly connected to the outer side of the corresponding housing 401. The bottom of the housing 401 is fixedly installed with a second guide frame 413. The second guide frame 413 is slidably sleeved on the outer side of the second guide rail 302.

[0026] In this embodiment, the support mechanism 2 includes: a workbench 201, a support net 202, and a lifting mechanism 203. The support net 202 is fixedly connected to the top of the workbench 201, and the bottom of the workbench 201 is provided with multiple casters. The base 101 is fixedly connected to one side of the workbench 201. The lifting mechanism 203 includes: a hinge frame 2038, an electric push rod 2037, and multiple mounting seats 2031. A rotating column 2032 is rotatably mounted inside the mounting seat 2031. A lifting column 2033 is fixedly connected to the top of the rotating column 2032, and a drive arm 2034 is fixedly connected to the bottom end of the rotating column 2032. The same linkage rod 2035 is rotatably connected to one side of the multiple drive arms 2034, and a bracket 2036 is hinged to the other end of one of the drive arms 2034. The bracket 2036 is fixedly connected to the output end of the first electric push rod 2037, and a hinge seat is fixedly mounted at the bottom of the first electric push rod 2037. The hinge seat is rotatably mounted inside the hinge frame 2038, and both the hinge frame 2038 and the mounting seats 2031 are fixedly mounted on the outside of the workbench 201.

[0027] The present invention also provides a laser intelligent cutting and welding method for machining, applied to the above-mentioned laser intelligent cutting and welding system for machining, including the following steps: S1: The plate to be processed is placed on top of the support net 202, the electric push rod 2037 is started to drive the bracket 2036 to move, and the drive arm 2034 is driven to rotate, and the other drive arms 2034 are driven to rotate through the linkage rod 2035, and the rotating column 2032 and the lifting column 2033 are driven to rotate, so as to lift the plate. S2: Start the third servo motor 404 to drive the lead screw 405 to rotate. The lead screw 405 drives the laser cutting head 408 to move up and down through the threaded transmission with the mounting bracket 407. Adjust the height of the laser cutting head 408, start the laser cutting head 408, the first servo motor 306 and the second servo motor 402. The first servo motor 306 drives the first gear 307 to rotate. Through the meshing of the first gear 307 with the first rack 103 and the cooperation of the first guide frame 308 and the first guide rail 102, the crossbeam 301 moves along the first guide rail 102. The second servo motor 402 drives the second gear 403 to rotate. The second gear 403, through the meshing with the second rack 303 and the cooperation of the second guide frame 413 and the second guide rail 302, drives the housing 401 to move along the second guide rail 302. Thus, control the laser cutting head 408 to move horizontally as needed. Laser cutting is achieved through the high-energy laser beam output by the laser cutting head 408. S3: Temperature sensor 409 monitors the temperature of laser cutting head 408. When the temperature reaches the preset value, controller 411 opens control valve 509 to introduce cooling water above fixed partition 507 into heat conduction frame 501 through water inlet pipe 508. Heat conduction frame 501 is in direct contact with laser cutting head 408, thereby carrying away the heat generated by laser cutting head 408 and cooling it down. Then, cooling water is introduced into recovery tank 502 through water outlet pipe 510. Controller 411 automatically adjusts the opening of control valve 509 according to the temperature value monitored by temperature sensor 409, thereby adjusting the water flow rate in heat conduction frame 501 to meet the needs of different working conditions. S4: During the horizontal movement of the housing 401, during acceleration, deceleration, start-up, and stop movements, the moving plate 523 will move horizontally relative to the fixed frame 525 under the action of inertia, driving the ball seat 518 and the ball bearing 522 to move. The ball bearing 522, through contact with the spherical groove on the top of the connecting plate 521, drives the connecting plate 521 to move downward. The connecting plate 521 drives the piston plate 516 to move synchronously through the connecting rod 517. When the piston plate 516 moves upward, it creates a negative pressure in the water suction frame 514, drawing the cooling water in the recovery tank 502 into the water suction frame 514. When the piston plate 516 moves downward, it causes the cooling water in the water suction frame 514 to enter the outlet pipe 506 and flow back to the water storage tank. Inside the water tank 503, the water is circulated to facilitate subsequent cooling of the laser cutting head 408. After cutting, the water valve is opened and the heated cooling wastewater in the water tank 503 is discharged through the drain pipe 505. New cooling water is injected through the water inlet pipe 504 to facilitate continuous laser processing. This causes the water temperature in the water tank 503 to rise continuously, affecting the cooling effect. When the movement amplitude of the ball bearing 522 is too large and it comes into contact with the pressure ring 530, the first pressure sensor 531 detects the pressure and adjusts the operating speed of the first servo motor 306 and the second servo motor 402 through the controller 411, thereby adjusting the acceleration of the housing 401 to avoid excessive acceleration and damage to the inside of the laser cutting head 408. S5: When friction exists between the second guide frame 413 and the second guide rail 302, causing resistance to the movement of the housing 401, the rotation of the second gear 403 will be resisted, which in turn will resist the rotation of the connecting shaft 604 and the connecting plate 602. This causes the torsion spring 614 to undergo torsional deformation until it balances the rotational resistance of the connecting plate 602, resulting in relative rotation between the connecting plate 602 and the drive plate 603. The drive plate 603, through the engagement of the arc-shaped hole 613 and the connecting post 612, drives the connecting post 612 to move outward, and drives the slide plate. 610 moves outward along the guide bar. The slide plate 610 drives the connecting ring 608 to move downward through the cooperation of the inclined rod 609. The connecting ring 608 drives the pressure frame 607 to move downward and compresses the second pressure sensor 606. Thus, the pressure value monitored by the second pressure sensor 606 can be used to determine the moving resistance of the housing 401. When the detected resistance exceeds the preset value, the controller 411 controls the oil control valve 702 to open, and the lubricating oil in the oil tank 701 is introduced into the crossbeam 301 and the second guide rail 302 through the lubrication pipe 703 to achieve automatic lubrication.

[0028] In this embodiment, during the specific implementation process, the base 101, worktable 201, and lifting mechanism 203 work together to fix and level the plate. The electric push rod 2037 is activated to simultaneously lift the plate using multiple lifting columns 2033 for easy positioning. The first servo motor 306 on the crossbeam 301 drives the first gear 307 to move along the first rack 103 for longitudinal feed, while the second servo motor 402 on the housing 401 drives the second gear 403 to move along the second rack 303 for lateral feed. This dual-axis linkage precisely controls the processing path of the laser cutting head 408 on the horizontal plane. Height adjustment is achieved by the third servo motor 404 driving the lead screw 405 to raise and lower the mounting frame 407. During the cutting process, the high temperature generated by the laser cutting head 408 is actively carried away by the circulating cooling water within the tightly fitted heat-conducting frame 501. The cooling water circuit dynamically adjusts the flow rate based on the real-time monitoring value of the temperature sensor 409 via the automatic control valve 509. Crucially, the system cleverly utilizes the inertial force of the moving casing 401 to drive the piston mechanism, automatically pumping the heated cooling water from the recovery tank 502 back to the storage tank 503 for recycling. When the moving resistance abnormally increases, triggering the torque monitoring mechanism 6, the system automatically activates the lubrication mechanism 7 to precisely lubricate the guide rails and transmission components. Simultaneously, the inertial impact sensing mechanism adjusts the servo motor's acceleration and deceleration curve in real-time using the signal from the first pressure sensor 531. Ultimately, this comprehensive system achieves high-precision positioning, efficient thermal management, intelligent maintenance of moving parts, and impact protection during the cutting and welding process, significantly improving processing quality stability, equipment operational reliability, and energy efficiency, while drastically reducing maintenance costs and the need for manual intervention, resulting in superior overall performance.

[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

Claims

1. A laser intelligent cutting and welding system for machining, characterized in that, include: The system comprises a fixed mechanism, a supporting mechanism, a moving mechanism, and two sets of laser cutting mechanisms. Each laser cutting mechanism includes a housing, a second servo motor, a third servo motor, a second gear, and a laser cutting head. The housing houses a cooling mechanism and a torque monitoring mechanism. The cooling mechanism includes a heat-conducting frame, a recovery tank, and a water storage tank. The heat-conducting frame is fixedly connected between the recovery tank and the water storage tank. The recovery tank contains a pumping frame and a fixed frame. The bottom of the pumping frame is connected to a pumping pipe and a drain pipe. A piston plate is slidably connected within the pumping frame. A connecting rod is fixedly connected to the top of the piston plate, and a connecting plate is fixedly connected to the top of the connecting rod. A translation frame is slidably installed within the fixed frame. A moving plate is slidably sleeved on the outer side of the translation frame. A ball seat is fixedly connected to the bottom of the moving plate, and a ball bearing is located at the bottom of the ball seat, with the ball bearing abutting against the top of the connecting plate.

2. The laser intelligent cutting and welding system for machining according to claim 1, characterized in that, The heat-conducting frame is connected to an inlet pipe and an outlet pipe on both sides respectively. A control valve is installed inside the inlet pipe. A fixed partition is fixedly installed inside the water storage tank. The other end of the inlet pipe is connected to the bottom of the fixed partition. The other end of the outlet pipe is connected to the recycling tank. The heat-conducting frame is sleeved on the outside of the laser cutting head. The pumping pipe is equipped with a first one-way valve, the outlet pipe is equipped with a second one-way valve, the other end of the outlet pipe is connected to the top of the water storage tank, and the outside of the water storage tank is connected to a water inlet pipe and a water outlet pipe, both of which are equipped with water valves. The recycling bin is fixedly equipped with an upper partition and a lower partition. The connecting rod is slidably connected in the upper partition. A return spring is fixedly connected between the upper partition and the connecting plate. A spherical groove is opened on the top of the connecting plate. Multiple first pressure sensors are fixedly connected to the outer edge of the top of the connecting plate. A pressure ring is provided at the top of the first pressure sensor.

3. The laser intelligent cutting and welding system for machining according to claim 2, characterized in that, Both sides of the translation frame are fixedly connected with transverse springs. A frame-shaped guide rail is fixedly installed inside the fixed frame. A transverse hole is opened on one side of the moving plate. A connecting frame is slidably installed in the transverse hole. The connecting frame and the translation frame are both slidably sleeved on the outside of the frame-shaped guide rail. The other end of the transverse spring is fixedly connected to the frame-shaped guide rail. Both the front and rear sides of the moving plate are fixedly connected with longitudinal springs. The other end of the longitudinal spring is fixedly connected to the translation frame.

4. The laser intelligent cutting and welding system for machining according to claim 3, characterized in that, The torque monitoring mechanism includes: a fixed base, a drive plate, a connecting plate, a pressure frame, a connecting ring, and a second pressure sensor. The fixed base is fixedly connected to the housing. A connecting shaft is fixedly connected to the bottom of the connecting plate. The connecting shaft is rotatably installed in the fixed base, and the bottom end of the connecting shaft is fixedly connected to the second gear. The pressure frame abuts against the top of the second pressure sensor, and the pressure frame is rotatably sleeved on the outside of the connecting ring. Multiple diagonal rods are fixedly connected to the outside of the connecting frame. The top of the connecting plate has multiple sliding holes, in which a sliding plate is slidably installed. A limit strip is fixedly installed in the sliding hole, and the sliding plate is slidably sleeved on the outside of the limit strip. An oblique hole is opened on one side of the sliding plate, and an oblique rod is slidably connected in the corresponding oblique hole. A connecting post is fixedly connected to the top of the sliding plate. The drive plate is fixedly connected to the output shaft of the second servo motor, and the output shaft of the second servo motor is rotatably connected to the top of the connecting plate. A torsion spring is fixedly connected between the connecting plate and the drive plate. An arc-shaped hole is opened on the top of the drive plate, and the connecting post is movably inserted into the corresponding arc-shaped hole. The second pressure sensor is fixedly connected to the top of the fixed base, and a vertical rod is fixedly connected to the top of the fixed base. The vertical rod is slidably connected in the pressure frame.

5. The laser intelligent cutting and welding system for machining according to claim 4, characterized in that, An equipment box is fixedly installed on the top of the housing. A controller is installed inside the equipment box. A mounting bracket is fixedly connected to one side of the laser cutting head. The mounting bracket is slidably installed inside the housing. The second servo motor and the third servo motor are both fixedly connected to the top of the housing. A lead screw is fixedly connected to the output shaft of the third servo motor. The mounting bracket is threaded onto the outside of the lead screw. A positioning seat is fixedly installed inside the housing. The lead screw is rotatably installed in the positioning seat. The housing is equipped with a lubrication mechanism, which includes an oil reservoir, an oil control valve, and a lubrication pipe. The top of the oil control valve is connected to the oil reservoir, and the lubrication pipe is connected to the other end of the oil control valve. A temperature sensor is installed on the outside of the laser cutting head, and an optical fiber is connected to the top of the laser cutting head.

6. The laser intelligent cutting and welding system for machining according to claim 5, characterized in that, The fixing mechanism includes: a base, a first guide rail, a first rack, a first folding protective cover, and a protective frame. The first guide rail and the first rack are fixedly connected to the top of the base. One end of the first folding protective cover is fixedly connected to the protective frame, and the other end of the first folding protective cover is fixedly connected to one end of the base.

7. The laser intelligent cutting and welding system for machining according to claim 6, characterized in that, The moving mechanism includes: a crossbeam, a first servo motor, a first gear, and a first guide frame. The first guide frame is slidably sleeved on the outside of the first guide rail. The other end of the protective frame is fixedly connected to the crossbeam. The first servo motor is fixedly installed on the top of the crossbeam. The first gear is fixedly connected to the output shaft of the first servo motor. The first gear meshes with the first rack. The top of the crossbeam is fixedly connected to a second rack and a second guide rail. The second gear meshes with the second rack. Both ends of the crossbeam are fixedly connected to side plates. The inner side of the side plates is fixedly connected to a second folding protective cover. The other end of the second folding protective cover is fixedly connected to the outer side of the corresponding housing. The bottom of the housing is fixedly installed with a second guide frame. The second guide frame is slidably sleeved on the outer side of the second guide rail.

8. The laser intelligent cutting and welding system for machining according to claim 7, characterized in that, The support mechanism includes a workbench, a support net, and a lifting mechanism. The support net is fixedly connected to the top of the workbench, and multiple casters are provided at the bottom of the workbench. The base is fixedly connected to one side of the workbench. The lifting mechanism includes a hinge frame, an electric push rod, and multiple mounting seats. A rotating column is rotatably mounted inside the mounting seat. A lifting column is fixedly connected to the top of the rotating column, and a drive arm is fixedly connected to the bottom of the rotating column. One side of each drive arm is rotatably connected to the same linkage rod, and the other end of one of the drive arms is hinged to a bracket. The bracket is fixedly connected to the output end of the first electric push rod, and a hinge seat is fixedly mounted at the bottom of the first electric push rod. The hinge seat is rotatably mounted inside the hinge frame, and both the hinge frame and the mounting seats are fixedly mounted on the outside of the workbench.

9. A laser intelligent cutting and welding method for machining, applied to the laser intelligent cutting and welding system for machining as described in claim 8, characterized in that, Includes the following steps: S1: Place the plate to be processed on top of the support net, start the electric push rod to move the bracket, drive the drive arm to rotate, and drive other drive arms to rotate through the linkage rod, and drive the rotating column and lifting column to rotate, thereby lifting the plate; S2: Start the third servo motor to drive the lead screw to rotate. The lead screw drives the laser cutting head to move up and down through the threaded transmission with the mounting bracket. Adjust the height of the laser cutting head, start the laser cutting head, the first servo motor and the second servo motor. The first servo motor drives the first gear to rotate. Through the meshing of the first gear and the first rack, and with the cooperation of the first guide frame and the first guide rail, the crossbeam moves along the first guide rail. The second servo motor drives the second gear to rotate. Through the meshing of the second gear and the cooperation of the second guide frame and the second guide rail, the second gear drives the housing to move along the second guide rail. Thus, control the horizontal movement of the laser cutting head as needed. Laser cutting is achieved through the high-energy laser beam output by the laser cutting head. S3: The temperature sensor monitors the temperature of the laser cutting head. When the temperature reaches the preset value, the controller opens the control valve to introduce the cooling water above the fixed partition into the heat conduction frame through the water inlet pipe. The heat conduction frame is in direct contact with the laser cutting head, thereby removing the heat generated by the laser cutting head and cooling it down. Afterward, the cooling water is introduced into the recovery tank through the water outlet pipe. The controller automatically adjusts the opening of the control valve according to the temperature value monitored by the temperature sensor, thereby adjusting the water flow in the heat conduction frame to meet the needs of different working conditions. S4: During the horizontal movement of the casing, including acceleration, deceleration, start-up, and stop, the moving plate moves horizontally relative to the fixed frame due to inertia, driving the ball seat and ball bearings. The ball bearings, through contact with the spherical groove on the top of the connecting plate, cause the connecting plate to move downwards. The connecting plate, via the connecting rod, drives the piston plate to move synchronously. When the piston plate moves upwards, it creates negative pressure in the water suction frame, drawing cooling water from the recovery tank into the water suction frame. When the piston plate moves downwards, it causes the cooling water in the water suction frame to enter the outlet pipe and flow back into the storage tank, facilitating... The system then circulates and continuously cools the laser cutting head. After cutting, the water valve is opened and the heated cooling wastewater in the water tank is drained through the drain pipe. New cooling water is then injected through the water inlet pipe to facilitate continuous laser processing. This causes the water temperature in the water tank to rise continuously, affecting the cooling effect. When the ball moves too much and comes into contact with the pressure ring, the first pressure sensor detects the pressure and adjusts the operating speed of the first and second servo motors through the controller. This adjusts the acceleration of the housing movement to prevent excessive acceleration and damage to the inside of the laser cutting head. S5: When friction exists between the second guide frame and the second guide rail, causing resistance to the movement of the housing, the rotation of the second gear will be resisted, which in turn will resist the rotation of the connecting shaft and the connecting plate. This causes the torsion spring to undergo torsional deformation until the rotational resistance of the connecting plate is balanced, resulting in relative rotation between the connecting plate and the drive plate. The drive plate, through the cooperation of the arc-shaped hole and the connecting column, drives the connecting column to move outward, and drives the slide plate to move outward along the guide bar. The slide plate, through the cooperation of the inclined rod, drives the connecting ring to move downward. The connecting ring drives the pressure frame to move downward and compresses the second pressure sensor. Thus, the pressure value monitored by the second pressure sensor can be used to determine the movement resistance of the housing. When the resistance exceeds the preset value, the controller controls the oil control valve to open, and the lubricating oil in the oil tank is introduced into the crossbeam and the second guide rail through the lubrication pipe to achieve automatic lubrication.

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