Steel structure numerical control machining equipment
By using triangular protrusions to push water and create waves, and by employing the technology of grating plate sinking and yielding, the problems of small plates getting stuck after steel plate cutting and underwater operations have been solved, achieving stable separation and collection of small plates and improving the automation and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG BOTAI STEEL STRUCTURE ENGINEERING CO LTD
- Filing Date
- 2026-05-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing steel plate cutting and blanking equipment has problems such as small plates getting stuck and unable to detach properly, complicated separation and collection mechanisms, and water splashing and workpiece sticking at high temperatures during underwater operations.
The system employs triangular protrusions to push water and create waves to achieve underwater impact separation of small plates. Combined with the pressure-bearing wings of the grating plate, it drives the plates to sink and recoil. Through pressurized jets and back-pushing cleaning, the small plates are stably detached and collected. It integrates cutting, separation, and collection functions, and utilizes fluid dynamic pressure boosting and unidirectional baffle conduction technology.
It achieves stable and smooth detachment and collection of small plates, avoids mechanical jamming and water splashing, ensures the cooling effect of the workpiece, and improves the automation level and operational reliability of the equipment.
Smart Images
Figure CN122425527A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of steel structure processing technology, specifically to a CNC machining equipment for steel structures. Background Technology
[0002] CNC machining equipment for steel structures is the core equipment used for CNC cutting and blanking of steel plates in the steel structure production field. It is widely used in the cutting and processing of various metal plates and the blanking of parts.
[0003] Existing steel plate cutting and blanking equipment mostly adopts a fixed support structure. After cutting, the small plates are prone to jamming and cannot be properly detached. The industry usually uses manual assistance or independent separation mechanisms to handle this. Although basic separation can be achieved, the small plates are still prone to tilting and jamming. Moreover, separation and collection require two sets of mechanisms, which makes the structure complicated. At the same time, underwater operations are prone to water splashing and workpieces sticking at high temperatures, making it difficult to guarantee production conditions and workpiece quality. Therefore, a steel structure CNC machining equipment is proposed. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a CNC machining equipment for steel structures, thereby solving the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a CNC machining equipment for steel structures, comprising: Worktable, three-axis displacement mechanism, cutting mechanism, positioning mechanism, linear reciprocating drive mechanism, wave-generating and return integrated mechanism, grid assembly and drainage pipe; The workbench has an inner groove, and the bottom of the inner groove is connected to a bottom groove. The grid assembly is arranged on the upper part of the inner groove, and the positioning mechanism is symmetrically installed on the two side walls of the workbench. The three-axis displacement mechanism drives the cutting mechanism to achieve multi-directional displacement, and the linear reciprocating drive mechanism is located in the inner groove and drives the wave-making and return integrated mechanism to move synchronously. The wave-generating and retraction integrated mechanism includes a dual-head motor, a crossbar, a transmission link, a support rod, a triangular protrusion, and paddle teeth. The dual-head motor drives the crossbar to rotate as a whole. The crossbar is connected to the support rod via the transmission link. The triangular protrusion is fixed to the top of the support rod and is used to push water and generate waves during linear movement. The paddle teeth are evenly distributed along the bottom edge of the triangular protrusion. In the wave-generating position, the paddle teeth face upwards and retract, separating from the bottom of the inner tank. In the retraction position, the paddle teeth face downwards and fit against the bottom of the inner tank, used to reset the small steel structure plate that was separated during movement. The triangular protrusion has an inlet chamber on its water-facing surface. Inside the inlet chamber, there are pressure chambers on both sides near the bottom of the triangular protrusion, and the pressure chambers are connected to the inlet chamber. The bottom of the triangular protrusion has a return chamber that is connected to the side wall of the inlet chamber. A one-way baffle is hinged between the return chamber and the inlet chamber, which only allows water to flow from the return chamber to the inlet chamber. The grid assembly includes a support rod, a grid plate, a pressure-bearing wing, and a guide reset assembly for supporting reset.
[0006] Preferably, the linear reciprocating drive mechanism includes a guide rail fixed to the bottom of the inner groove, a sliding housing slidably mounted on the outside of the guide rail, a roller rotatably mounted on the bottom of the sliding housing, a slide groove opened inside the sliding housing, a servo motor fixed inside the slide groove by a frame, and a drive gear fixed to the output end of the servo motor. The guide rail has teeth along the length of the guide rail on the side near the drive gear, and the teeth mesh with the drive gear.
[0007] Preferably, the positioning mechanism includes an L-shaped side shell rotatably mounted on the end face of the worktable, an inner plate slidably mounted inside the L-shaped side shell, an electric push rod perpendicular to the end of the inner plate, and an anti-slip pressure block fixed to the moving end of the electric push rod. The electric push rod has a built-in displacement sensor for detecting the thickness of the steel plate.
[0008] Preferably, the three-axis displacement mechanism includes a side rail fixed to the outside of the worktable, a Y-axis traveling mechanism installed outside the side rail, a gantry fixed to the top of the Y-axis traveling mechanism, an X-axis traveling mechanism installed outside the horizontal part of the gantry, and an electric telescopic rod vertically fixed to the X-axis traveling mechanism. The electric telescopic rod is connected to the cutting mechanism to achieve vertical lifting.
[0009] Preferably, the workbench is filled with water, the water level is higher than the top surface of the grating plate but lower than the top surface of the steel plate to be processed, and the drain pipe is located on the side wall of the workbench for regulating and discharging water.
[0010] Preferably, the guide reset assembly includes a guide groove, a guide post, and an elastic reset member. The outlet of the pressurization chamber faces the pressure-bearing end face of the pressure-bearing wing. The guide groove is opened inside the grid plate. The guide post passes through the guide groove and the support rod. The elastic reset member is sleeved on the outside of the guide post and supports the inner wall of the guide groove and the end face of the support rod. The elastic reset member and the guide post are coaxially arranged. The guide post and the support rod are slidably connected to restrict the movement trajectory of the grid plate.
[0011] Compared with the prior art, the present invention provides a CNC machining equipment for steel structures, which has the following beneficial effects: This invention achieves underwater impact separation of small plates by using a triangular protrusion to move linearly and create waves. The protrusion's internal inlet and pressurization chambers utilize cross-sectional contraction to generate dynamic pressure, driving the pressure-bearing wings of the grating plate to sink and retract. A return flow chamber and a one-way baffle facilitate fluid diversion and bottom cleaning during the retraction phase. A dual-motor flipping crossbar integrates multiple functions including wave generation, separation, pressurization, retraction collection, and residue removal. A guide and reset assembly ensures stable support and reliable repositioning of the grating plate. This invention achieves coordinated operation throughout the entire process of steel structure cutting, separation, support switching, and collection. It offers advantages such as simplified structure, no mechanical jamming, and high functional integration, solving the problems of easy jamming in traditional equipment's mechanical guide structure and complex and redundant separation and collection mechanisms. The continuous impact of the wave-generating water flow on the bottom of the small plate, combined with the grating plate... Immediate retraction eliminates localized hard supports, enabling stable and smooth separation of small plates. This offers the advantages of reliable separation and no impact splashes, solving the problem of small plates being stuck or adhering after cutting. Pressurized jets acting on the pressure-bearing wings ensure pressure greater than the reset support force, achieving reliable non-contact sinking of the grating plate. This provides stable operation and uniform force distribution throughout, resolving issues of uneven sinking and incomplete retraction. During retraction, unidirectional baffles create a cleaning water flow and turbulent lifting effect, facilitating residue removal and easy collection of small plates. This ensures smooth operation and no jamming, solving the problems of residue jamming on the cutting teeth and small plates adhering to the bottom and difficult collection. Real-time cooling through underwater fluid operation provides excellent working conditions and prevents high-temperature deformation and adhesion of the workpiece, solving the problems of poor high-temperature cutting conditions and easy workpiece adhesion. Attached Figure Description
[0012] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the workbench structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of a portion of region A in the middle; Figure 4 This is a cross-sectional view of the grating structure of the present invention; Figure 5 This is a cross-sectional view of the sliding shell structure of the present invention; Figure 6 This is a schematic diagram of the tooth retraction state of the present invention; Figure 7 This is a front view of the triangular protrusion structure of the present invention; Figure 8 This is a perspective view of the bottom structure of the triangular protrusion of the present invention; Figure 9 This is a cross-sectional view of the triangular protrusion of the present invention.
[0013] In the diagram: 1. Worktable; 2. Three-axis displacement mechanism; 3. Cutting mechanism; 4. Positioning mechanism; 5. Linear reciprocating drive mechanism; 6. Wave-generating and return integrated mechanism; 7. Grille assembly; 8. Drainage pipe; 101. Inner groove; 102. Bottom groove; 201. Side rail; 202. Y-axis traveling mechanism; 203. Gantry frame; 204. X-axis traveling mechanism; 205. Electric telescopic mast; 401. L-shaped side shell; 402. Inner panel; 403. Electric push rod; 404. Anti-slip pressure block; 501. Guide rail; 502. Sliding housing; 503. Roller; 504. Slide groove; 505. Servo motor; 506. Drive gear; 601. Dual-head motor; 602. Crossbar; 603. Transmission link; 604. Support rod; 605. Triangular protrusion; 606. Pulley tooth; 607. Liquid inlet chamber; 608. Pressurization chamber; 609. Return chamber; 610. One-way partition; 701. Support rod; 702. Grating plate; 703. Pressure-bearing wing; 704. Guide groove; 705. Guide post; 706. Elastic reset component. Detailed Implementation
[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0015] This invention provides a technical solution: a CNC machining equipment for steel structures. Please refer to [link / reference]. Figures 1-9 ,include: 1. Workbench; 2. Three-axis displacement mechanism; 3. Cutting mechanism; 4. Positioning mechanism; 5. Linear reciprocating drive mechanism; 6. Wave-making and return integrated mechanism; 7. Grille assembly; and 8. Drainage pipe. The workbench 1 has an inner groove 101 inside, and the bottom of the inner groove 101 is connected to a bottom groove 102. The grid assembly 7 is arranged on the upper part of the inner groove 101, and the positioning mechanism 4 is symmetrically installed on the two side walls of the workbench 1. The three-axis displacement mechanism 2 drives the cutting mechanism 3 to achieve multi-directional displacement, and the linear reciprocating drive mechanism 5 is located in the inner groove 101 and drives the wave-making and return integrated mechanism 6 to move synchronously. The wave-generating and wave-reversing integrated mechanism 6 includes a dual-head motor 601, a crossbar 602, a transmission link 603, a support rod 604, a triangular protrusion 605, and a paddle tooth 606. The dual-head motor 601 is used to drive the crossbar 602 to rotate as a whole. The crossbar 602 is connected to the support rod 604 through the transmission link 603. The triangular protrusion 605 is fixed to the top of the support rod 604 and is used to push water and generate waves when moving in a straight line. The paddle tooth 606 is evenly distributed along the bottom edge of the triangular protrusion 605 and is used to paddle the separated steel structure plate when resetting and moving. The triangular protrusion 605 has an inlet chamber 607 on its water-facing surface. Inside the inlet chamber 607, on both sides near the bottom of the triangular protrusion 605, there are booster chambers 608, which are connected to the inlet chamber 607. The bottom of the triangular protrusion 605 has a return chamber 609 that communicates with the side wall of the inlet chamber 607. A one-way baffle 610 is hinged between the return chamber 609 and the inlet chamber 607. The one-way baffle 610 only allows water to flow unidirectionally from the return chamber 609 to the inlet chamber 607. In order to achieve reliable jet boosting drive, the area shrinkage ratio of the inlet chamber 607 and the booster chamber 608 (i.e., the ratio of the flow cross-sectional area of the inlet chamber 607 to the total outlet cross-sectional area of the booster chamber 608) is set to a range of 4:1 to 10:1. The area shrinkage ratio refers to the ratio of the flow cross-sectional area of the inlet chamber to the total outlet cross-sectional area of the two booster chambers, so as to obtain sufficient jet velocity under limited flow. The initial target distance from the outlet of the pressurization chamber 608 to the pressure-bearing wing 703 is 5 mm to 15 mm. This target distance range ensures that the jet impacts the pressure-bearing wing 703 before significant diffusion occurs, thereby guaranteeing the concentration and effectiveness of the impact pressure. The above parameters can be adjusted during manufacturing according to actual working conditions (such as water temperature, steel plate thickness, spring preload, etc.), and are not limited to specific values. The grid assembly 7 includes a support rod 701, a grid plate 702, a pressure-bearing wing 703, and a guide reset assembly for supporting reset. The workbench 1, grating plate 702, and guide column 705 are made of 304 stainless steel, which is waterproof and rustproof and suitable for underwater working conditions. The dual-head motor 601 is an IP68 waterproof underwater motor, and the circuit is fully sealed with glue to prevent short circuits in the water. The wave-making and retraction integrated mechanism 6 drives the crossbar 602 to flip through the dual-head motor 601, realizing the switching between the wave-making function of the triangular protrusion 605 and the retraction function of the tooth 606. This structure integrates cutting, positioning, wave generation separation, grid retraction, and small plate retraction into one unit. The wave generation and retraction mechanism 6 is mechanically linked with the grid assembly 7, which solves the problem of small plates tilting and getting stuck after cutting and unable to fall off in one go. The design of the water level being higher than the grid plate 702 and lower than the steel plate ensures the cooling effect of the water body and prevents water splashing. The whole structure has a high degree of integration and strong operational coordination, realizing full automation of the steel structure processing process.
[0016] Please see Figure 3 and Figure 5The linear reciprocating drive mechanism 5 includes a guide rail 501 fixed to the bottom of the inner groove 101, a sliding housing 502 slidably mounted on the outside of the guide rail 501, a roller 503 rotatably mounted on the bottom of the sliding housing 502, a slide groove 504 opened inside the sliding housing 502, a servo motor 505 fixed inside the slide groove 504 by a frame, and a drive gear 506 fixed to the output end of the servo motor 505. The guide rail 501 has teeth along the length direction of the guide rail 501 on the side near the drive gear 506, and the teeth mesh with the drive gear 506. The guide rail 501, sliding housing 502, and drive gear 506 are made of 45# steel with quenching treatment, which is wear-resistant and deformation-resistant. The roller 503 is made of nylon material to reduce sliding resistance. The servo motor 505 is a waterproof servo motor, and the circuit is connected through a waterproof junction box. The drive gear 506 meshes with the toothed drive rail 501 for transmission. The linear reciprocating drive mechanism 5 drives the wave-making and return mechanism 6 to move smoothly back and forth through the triple guidance and limit of the guide rail 501, sliding groove 504, and roller 503. The meshing transmission between the servo motor 505 and the drive gear 506 can precisely adjust the moving speed to adapt to the wave-making and return requirements of different plate thicknesses. The movement is free from deviation and jamming, providing stable power for the separation and collection of small plates, and greatly improving the reliability and accuracy of the mechanism operation.
[0017] Please see Figure 1 and Figure 2 The positioning mechanism 4 includes an L-shaped side shell 401 rotatably mounted on the end face of the workbench 1, an inner plate 402 slidably mounted inside the L-shaped side shell 401, an electric push rod 403 perpendicular to the end of the inner plate 402, and an anti-slip pressure block 404 fixed to the moving end of the electric push rod 403. The electric push rod 403 has a built-in displacement sensor for detecting the thickness of the steel plate. The L-shaped side shell 401 and inner plate 402 are made of aluminum alloy. The inner plate 402 is moved inside the L-shaped side shell 401 by manual stretching to achieve displacement. Combined with the rotation of the L-shaped side shell 401 on the end face of the worktable 1, it can adapt to steel plates of different sizes. At the same time, bolts and other fasteners can be added to limit and fix the inner plate 402. It is lightweight and rust-proof. The anti-slip pressure block 404 is made of polyurethane rubber, which is anti-slip and does not damage the surface of the steel plate. The electric push rod 403 has a built-in Hall displacement sensor, which obtains the telescopic feed by detecting changes in magnetic flux. The signal is received by the external PLC controller and converted into the steel plate thickness. The circuit uses analog signal transmission, which is waterproof and anti-interference. The positioning mechanism 4 drives the anti-slip pressure block 404 to press the steel plate through the electric push rod 403 to prevent the steel plate from shifting due to water wave impact. The built-in displacement sensor detects the plate thickness in real time and outputs a signal to realize an intelligent closed loop of perception, decision and execution. No manual measurement and parameter adjustment are required. It is suitable for intelligent processing of steel plates of different thicknesses and improves the versatility and intelligence level of the equipment.
[0018] Please see Figure 1 and Figure 2The three-axis displacement mechanism 2 includes a side rail 201 fixed to the outside of the worktable 1, a Y-axis traveling mechanism 202 installed outside the side rail 201, a gantry 203 fixed to the top of the Y-axis traveling mechanism 202, an X-axis traveling mechanism 204 installed outside the horizontal part of the gantry 203, and an electric telescopic rod 205 vertically fixed to the X-axis traveling mechanism 204. The electric telescopic rod 205 is connected to the cutting mechanism 3 to achieve vertical lifting. The side rail 201 and gantry 203 are welded from structural steel and galvanized for rust prevention. The Y-axis walking mechanism 202 and X-axis walking mechanism 204 are driven by servo and track transmission. The electric telescopic rod 205 uses a waterproof electric cylinder and the circuit is sealed. The three-axis displacement mechanism 2 achieves three-axis linkage through the side rail 201, Y-axis walking mechanism 202, X-axis walking mechanism 204 and electric telescopic rod 205, driving the cutting mechanism 3 to complete the CNC cutting of full-size steel plates. The movement is smooth and vibration-free, the cutting trajectory is precise, and it is suitable for cutting and processing various steel structure parts. It does not interfere with the underwater separation mechanism, ensuring that the cutting and separation processes operate independently and stably.
[0019] Please see Figure 1 , Figure 3 and Figure 6 The workbench 1 is filled with water. The water level is higher than the top surface of the grating plate 702 and lower than the top surface of the steel plate to be processed. The drain pipe 8 is located on the side wall of the workbench 1 and is used to regulate and discharge water. The drain pipe 8 is made of 304 stainless steel and has a built-in solenoid valve. It is linked with the water level sensor to realize automatic drainage and water replenishment. The water body is industrial clean water, and the water level difference is fixed at 10mm. The water level inside the workbench 1 is higher than the top surface of the grating plate 702 and lower than the top surface of the steel plate to be processed. The water body covers the cutting part and the small plate throughout the process, realizing real-time cooling and avoiding the small plate from melting and sticking at high temperature, thermal deformation and jamming. The drain pipe 8 can quickly adjust the water level and discharge the slag-containing water body to ensure a clean and stable water environment. This not only improves the separation effect of the small plate, but also protects the cutting mechanism 3 and the underwater moving parts, and extends the service life of the equipment.
[0020] Please see Figure 2 and Figure 4 The guide reset assembly includes a guide groove 704, a guide post 705, and an elastic reset member 706. The outlet of the pressurization chamber 608 faces the pressure-bearing end face of the pressure-bearing wing 703. The guide groove 704 is opened inside the grating plate 702. The guide post 705 passes through the guide groove 704 and the support rod 701. The elastic reset member 706 is sleeved on the outside of the guide post 705 and supports the inner wall of the guide groove 704 and the end face of the support rod 701. The elastic reset member 706 and the guide post 705 are coaxially arranged. The guide post 705 and the support rod 701 are slidably connected to restrict the movement trajectory of the grating plate 702. The elastic reset component 706 uses a stainless steel compression spring. The sliding fit clearance between the guide column 705 and the support rod 701 is set to 0.2mm to ensure smooth lifting without jamming. The guide column 705 and the guide groove 704 are coaxially positioned. The elastic reset component 706 and the guide column 705 are coaxially set. Under normal conditions, the grating plate 702 is pushed to form a stable support. The sliding connection between the guide column 705 and the support rod 701 strictly limits the grating plate 702 to only vertical lifting. With the support rod 604 pressing down, it can quickly retreat. After separation, it automatically resets. The switching between support and retreat is smooth, which not only ensures the support stability when the steel plate is cut, but also completely eliminates the local hard support of the small plate, and avoids the small plate tilting and jamming from the root.
[0021] This solution involves the operator placing the steel plate to be processed stably on the workbench 1. The workbench 1 has an inner groove 101 and a bottom groove 102. A grid assembly 7 is installed in the inner groove 101. Under normal conditions, the elastic reset member 706 lifts the grid plate 702 upwards, and the support rod 701 provides uniform support for the steel plate. The workbench 1 is filled with water, with the water level slightly higher than the grid plate 702 and not higher than the upper surface of the steel plate, forming a stable underwater working environment. The drain pipe 8 is used to maintain the water level and drain water.
[0022] After the steel plate is placed, the positioning mechanism 4 starts to operate. The electric push rod 403 extends and drives the anti-slip pressure block 404 to press the two ends of the steel plate to prevent the steel plate from shifting during cutting and subsequent water wave impact. The electric push rod 403 has a built-in stroke sensor, which automatically identifies the thickness of the steel plate by detecting the extension and retraction feed amount, and transmits the thickness signal to the controller to provide intelligent adjustment basis for subsequent wave-making actions.
[0023] After the steel plate is fixed, the three-axis displacement mechanism 2 drives the cutting mechanism 3 to start processing. The Y-axis traveling mechanism 202 drives the gantry 203 to move longitudinally along the side rail 201, and the X-axis traveling mechanism 204 drives the cutting mechanism 3 to move laterally along the gantry 203. The electric telescopic rod 205 adjusts the height of the cutting mechanism 3, and together with the cutting mechanism 3, the fully automatic CNC cutting of the steel plate is completed.
[0024] After cutting, the steel plate is formed into multiple small plates. These small plates are prone to falling directly into the water, resting entirely on top of the grating plate 702, or partially resting on top of the grating plate 702. They are also prone to tilting, getting stuck, and being unable to fall. The equipment then enters the automatic separation process of the small plates.
[0025] When the linear reciprocating drive mechanism 5 is started, the servo motor 505 drives the sliding housing 502 to move forward along the guide rail 501 through the drive gear 506. The roller 503 and the slide groove 504 ensure smooth and stable movement. The sliding housing 502 drives the wave-making and back-rotating integrated mechanism 6 to move synchronously. At this time, the dual-head motor 601 keeps the crossbar 602 in the wave-making position and brings the tip of the triangular protrusion 605 close to the water surface. The triangular protrusion 605 adopts a hollowed-out structure, and only pushes water and creates waves through the slopes on both sides and the top. The hollowed-out area forms an independent fluid channel, which is specifically used to generate vertical downward pressure without weakening the main wave-making effect. During the movement of the triangular protrusion 605, it continuously pushes the water flow to hit the bottom of the small plate. At the same time, some water flows into the liquid inlet chamber 607. The liquid inlet chamber 607 adopts a large cross-section inlet design to ensure sufficient water intake. The water flows into the pressure boosting chamber 608 through the liquid inlet chamber 607. The pressure boosting chamber 608 adopts a significantly reduced flow inner diameter. Based on Bernoulli's principle and the pressure boosting characteristics of fluid streams, the water flow velocity and dynamic pressure are increased exponentially to achieve strong pressure boosting. The pressurized jet is discharged downwards, and the high-speed jet acts on the inclined pressure-bearing wing 703. Through the large force-bearing area and optimal impact angle of the pressure-bearing wing 703, the instantaneous water flow impact force is greater than the total support force of the elastic reset member 706, ensuring that the grating plate 702 sinks and retracts reliably. This generates a downward pushing force on the pressure-bearing wing 703, causing the grating plate 702 to sink and retract. The small plate loses local hard support and falls smoothly into the inner tank 101 under the action of water flow impact and its own weight. At the same time, the inclined pressure-bearing wing 703 can always maintain the optimal impact angle with the direction of the pressurized jet, and can stably bear the water flow force throughout the sinking process of the grating plate 702, avoiding the problem of force loss and thrust attenuation in the latter half, and achieving the effect of smooth sinking and retraction of the grating plate 702 throughout the entire process. The controller intelligently adjusts the running speed of the servo motor 505 based on the detected steel plate thickness. For thinner plates, the moving speed and wave intensity are reduced to prevent the small plates from being impacted and thrown up. For thicker plates, the moving speed and wave intensity are increased to ensure that the small plates can be reliably detached, thus achieving adaptive intelligent separation. The pressurization drive is based on the fluid continuity equation and the dynamic pressure boosting principle. The inlet chamber 607 adopts a large flow cross section to ensure sufficient liquid intake, while the boosting chamber 608 adopts a small flow cross section that is significantly smaller than that of the inlet chamber 607. Under the premise of constant flow rate, the reduction of the flow cross section causes the water flow velocity to increase sharply, thereby increasing the dynamic pressure of the water body by a square factor. The high-speed jet after pressurization acts on the effective force-bearing surface of the inclined pressure-bearing wing 703, forming a concentrated and stable vertical impact pressure. This vertical impact pressure is always greater than the pre-tightening support force of the elastic reset member 706 during the wave-making movement, thereby reliably driving the grid plate 702 to sink and retract. Moreover, the pressure changes synchronously with the moving speed, which is completely matched with the plate thickness adaptive adjustment logic, ensuring that plates of different thicknesses can work stably without problems such as insufficient support or failure to sink to the correct position.
[0026] After separation, the dual-head motor 601 drives the crossbar 602 to rotate along its axis, causing the transmission link 603 to drive the support rod 604 to rotate downward, so that the triangular protrusion 605 faces downward and the tooth 606 is in contact with the bottom of the inner groove 101. At this time, the dual-head motor 601 keeps the crossbar 602 in the retraction working state, and the linear reciprocating drive mechanism 5 drives the sliding shell 502 to move in the opposite direction to reset. The pawl 606 moves with the crossbar 602. During the resetting and moving of the triangular protrusion 605, the water flows from the bottom into the return chamber 609 and pushes open the one-way baffle 610, forming a one-way fluid circuit. The water flows in a direction in the return chamber 609 and is discharged backward from the inlet chamber 607. This structure can form a backward sweeping water flow on the return path, guiding the iron filings and residues at the bottom of the inner tank 101 backward. At the same time, it forms an upward turbulent lifting effect on the bottom plate, reducing the static friction between the plate and the bottom of the tank, making it easier for the plate to be pushed and collected by the pawl 606. It continuously pulls the plate in the inner tank 101 and pushes all the plate into the bottom tank 102, realizing the centralized collection of the plate. When the wave-making return mechanism 6 resets back to the top of the bottom tank 102, the dual-head motor 601 controls the crossbar 602 to rotate, so that the tip of the triangular protrusion 605 approaches the water surface and remains fixed for the next use.
[0027] The equipment operates entirely in a water environment, with the water continuously cooling the cutting area and small plates. A small number of thin plates briefly float to the surface due to the water flow and then fall back onto the overall plate scrap frame. Because there is no high-temperature melting or thermal deformation causing jamming, they can be easily removed. The entire process, from steel plate loading, positioning, and CNC cutting to wave separation, grid retraction, and small plate retraction and collection, is fully automated. This effectively solves the problems of plate tilting and jamming after cutting, and difficulty in material removal, providing highly efficient and stable CNC machining capabilities for steel structures.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A CNC machining equipment for steel structures, characterized in that, include: Workbench (1), three-axis displacement mechanism (2), cutting mechanism (3), positioning mechanism (4), linear reciprocating drive mechanism (5), wave-making and back-pulling integrated mechanism (6), grid assembly (7), and drainage pipe (8); The workbench (1) has an inner groove (101) inside, and the bottom groove (102) is connected to the bottom of the inner groove (101). The grid assembly (7) is arranged on the upper part of the inner groove (101), and the positioning mechanism (4) is symmetrically installed on both sides of the workbench (1). The three-axis displacement mechanism (2) drives the cutting mechanism (3) to achieve multi-directional displacement, and the linear reciprocating drive mechanism (5) is located in the inner groove (101) and drives the wave-making and back-pulling integrated mechanism (6) to move synchronously. The wave-generating and reversing integrated mechanism (6) includes a dual-head motor (601), a crossbar (602), a transmission link (603), a support rod (604), a triangular protrusion (605), and a paddle (606). The dual-head motor (601) is used to drive the crossbar (602) to rotate as a whole. The crossbar (602) is connected to the support rod (604) through the transmission link (603). The triangular protrusion (605) is fixed to the top of the support rod (604) for pushing water and generating waves when moving in a straight line. The paddle (606) is evenly distributed along the bottom edge of the triangular protrusion (605) for resetting and moving the separated steel structure plate. The triangular protrusion (605) has a liquid inlet chamber (607) on its water-facing surface. The liquid inlet chamber (607) has a pressure boosting chamber (608) on both sides near the bottom of the triangular protrusion (605), and the pressure boosting chamber (608) is connected to the liquid inlet chamber (607). The bottom of the triangular protrusion (605) has a return chamber (609) that is connected to the side wall of the liquid inlet chamber (607). A one-way partition (610) is hinged between the return chamber (609) and the liquid inlet chamber (607). The grid assembly (7) includes a support rod (701), a grid plate (702), a pressure-bearing wing (703), and a guide reset assembly for supporting reset.
2. The CNC machining equipment for steel structures according to claim 1, characterized in that: The linear reciprocating drive mechanism (5) includes a guide rail (501) fixed to the bottom of the inner groove (101), a sliding housing (502) slidably mounted on the outside of the guide rail (501), a roller (503) rotatably mounted on the bottom of the sliding housing (502), a slide groove (504) opened inside the sliding housing (502), a servo motor (505) fixed inside the slide groove (504) by a frame, and a drive gear (506) fixed to the output end of the servo motor (505). The guide rail (501) has teeth along the length direction of the guide rail (501) on the side near the drive gear (506), and the teeth mesh with the drive gear (506).
3. The CNC machining equipment for steel structures according to claim 1, characterized in that: The positioning mechanism (4) includes an L-shaped side shell (401) rotatably mounted on the end face of the workbench (1), an inner plate (402) slidably mounted inside the L-shaped side shell (401), an electric push rod (403) perpendicular to the end of the inner plate (402), and an anti-slip pressure block (404) fixed to the moving end of the electric push rod (403). The electric push rod (403) has a built-in displacement sensor for detecting the thickness of the steel plate.
4. The CNC machining equipment for steel structures according to claim 1, characterized in that: The three-axis displacement mechanism (2) includes a side rail (201) fixed to the outside of the workbench (1), a Y-axis traveling mechanism (202) installed outside the side rail (201), a gantry frame (203) fixed to the top of the Y-axis traveling mechanism (202), an X-axis traveling mechanism (204) installed outside the horizontal part of the gantry frame (203), and an electric telescopic rod (205) vertically fixed to the X-axis traveling mechanism (204). The electric telescopic rod (205) is connected to the cutting mechanism (3) to achieve vertical lifting.
5. A CNC machining equipment for steel structures according to claim 1, characterized in that: The workbench (1) is filled with water. The water level is higher than the top surface of the grating plate (702) and lower than the top surface of the steel plate to be processed. The drain pipe (8) is located on the side wall of the workbench (1) for regulating and discharging water.
6. A CNC machining equipment for steel structures according to claim 1, characterized in that: The guide reset assembly includes a guide groove (704), a guide post (705), and an elastic reset member (706). The outlet of the pressurization chamber (608) faces the pressure-bearing end face of the pressure-bearing wing (703). The guide groove (704) is opened inside the grid plate (702). The guide post (705) passes through the guide groove (704) and the support rod (701). The elastic reset member (706) is sleeved on the outside of the guide post (705) and supports the inner wall of the guide groove (704) and the end face of the support rod (701). The elastic reset member (706) and the guide post (705) are coaxially arranged. The guide post (705) and the support rod (701) are slidably connected to restrict the movement trajectory of the grid plate (702).