Numerical control cutting equipment for wind power tower drum provided with multi-cutting head switching device
By integrating a maintenance mechanism into the CNC cutting equipment for wind turbine towers, and utilizing the synchronous movement of the pneumatic hammer and wiring rack, the problems of poor heat dissipation and cutting trajectory deviation caused by welding slag accumulation are solved, achieving efficient cleaning and precise cutting.
Patent Information
- Application Number
- CN202522057873.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-24
AI Technical Summary
In long-term use, the CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device suffers from the accumulation of welding slag, which clogs the ventilation channels of the honeycomb grid, affecting the heat dissipation of the workpiece and the cutting accuracy. Furthermore, the accumulation of welding slag alters the support shape of the needle-shaped support plate, causing the workpiece to be unstable and resulting in deviations in the cutting trajectory.
The maintenance mechanism is integrated into the cutting equipment. The pneumatic hammer driven by the cylinder synchronously cleans the welding slag on the grid processing table. The high-frequency vibration of the pneumatic hammer causes fatigue fracture at the interface between the welding slag and the metal substrate. The synchronous movement of the wiring rack enables dynamic cleaning of the entire width, ensuring the vertical switching and positioning stability of the cutting head.
It enables efficient removal of welding slag without stopping the machine, avoiding poor heat dissipation and cutting trajectory deviation caused by welding slag, ensuring cutting accuracy and consistency, and improving production efficiency and product quality.
Smart Images
Figure CN224674124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC cutting equipment, specifically a CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device. Background Technology
[0002] The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device is a highly intelligent, efficient, and extremely precise advanced manufacturing equipment. It is specifically designed to meet the complex and diverse cutting needs of wind turbine towers. It can quickly and automatically switch between different types of cutting heads, such as plasma cutting heads, flame cutting heads, and laser cutting heads, to flexibly cope with various materials, thicknesses, and different cutting process requirements in the manufacturing process of wind turbine towers. This significantly improves production efficiency, reduces labor costs, and ensures stable and reliable cutting quality, playing an indispensable and key role in the field of wind power equipment manufacturing.
[0003] However, during long-term use, the CNC cutting equipment for wind turbine towers equipped with multi-cutting head switching devices suffers from a buildup of weld slag. Regardless of whether the worktable uses a honeycomb grid design to enhance ventilation and provide uniform support, the tiny particles that splatter from molten metal during cutting, after rapidly cooling under high temperatures, adhere to the grid gaps, needle-shaped support tips, and various surfaces of the worktable. Over time, this weld slag accumulates, gradually blocking the ventilation channels of the honeycomb grid, affecting effective heat dissipation from the workpiece during cutting, leading to deformation due to localized overheating, impacting cutting accuracy and product quality. Furthermore, the weld slag buildup on the needle-shaped support plates alters their original support structure, causing instability in the workpiece and slight shaking during cutting, resulting in cutting trajectory deviations and reducing cutting accuracy and consistency. Utility Model Content
[0004] Based on this, the purpose of this utility model is to provide a CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device, so as to solve the technical problems that the worktable accumulates welding slag over a long period of use, which leads to blockage of the ventilation channels of the honeycomb grid, affects the heat dissipation and deformation of the workpiece, reduces the cutting accuracy, and changes the support shape of the needle-shaped support plate due to the accumulation of welding slag, making the workpiece unstable, causing deviation of the cutting trajectory, and reducing the cutting accuracy and consistency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a CNC cutting device for wind turbine towers equipped with a multi-cutting head switching device, comprising a cutting device, the cutting device comprising a base, a first linear motor, and a second linear motor, wherein a wiring frame is provided on the back of the second linear motor, and a maintenance mechanism is provided at the bottom of the wiring frame;
[0006] The maintenance mechanism includes a mounting base with a sliding groove at the bottom. A lead screw is rotatably connected in the sliding groove. A motor is installed on one side of the mounting base, and the output end of the motor passes through the mounting base and is fixedly connected to the lead screw. A lead screw slide is engaged on the lead screw, and a cylinder is installed at the bottom of the lead screw slide. A pneumatic hammer is installed at the bottom output end of the cylinder.
[0007] By adopting the above technical solution, a maintenance mechanism is integrated at the bottom of the wiring rack to achieve synchronous cleaning of welding slag as the cutting motion is carried out, thus avoiding downtime maintenance and production capacity loss.
[0008] Furthermore, the cylinder is stationary when it is raised, and the pneumatic hammer strikes the grille processing table when the cylinder is lowered.
[0009] By adopting the above technical solution, the cylinder stops and rises to avoid interfering with the cutting process, and triggers the pneumatic hammer to precisely remove slag when it descends.
[0010] Furthermore, a grid processing table is provided at the top center of the base, and a first linear motor is provided on both sides of the top of the base, with a second linear motor provided at the top moving end of the first linear motor.
[0011] By adopting the above technical solution, the orthogonal layout of dual linear motors enables precise positioning of the cutting head over a large span.
[0012] Furthermore, the moving end of the outer surface of the second linear motor is provided with a mounting bracket, and the mounting bracket is provided with multiple sets of electric actuators.
[0013] By adopting the above technical solution, multiple sets of electric actuators can independently control the vertical switching of the cutting head, eliminating process transition errors.
[0014] Furthermore, each of the multiple sets of electric actuators is equipped with a cutting head at its bottom, and the cutting head is divided into a sub-cutting head, a flame cutting head, and a laser cutting head.
[0015] By adopting the above technical solutions, multiple cutting heads are integrated and adapted to composite processes, and the entire process can be completed in a single clamping.
[0016] Furthermore, the striking trajectory of the pneumatic hammer matches the gap distribution of the honeycomb structure of the grid processing table. When the lead screw slide moves along the slide groove, the landing point of the pneumatic hammer covers the longitudinal support rib node area of the grid processing table.
[0017] By adopting the above technical solution, the trajectory of the pneumatic hammer is matched with the honeycomb nodes, and the impact energy is transmitted in a directional manner to remove slag efficiently.
[0018] Furthermore, the multiple sets of electric actuators on the mounting frame and the cutting head constitute a vertical switching module, and there is a spatial avoidance relationship between the lower limit of the working stroke of the module and the lifting limit of the pneumatic hammer.
[0019] By adopting the above technical solution, the cutting head descent limit and the pneumatic hammer lifting height avoid each other, ensuring the safety of the dual systems operating in parallel.
[0020] Furthermore, the cable routing of the wiring rack includes a vertical redundant section extending from the back of the second linear motor to the mounting bracket, the bending radius of which allows the mounting bracket to synchronously pull the maintenance mechanism lateral displacement when moving in the X / Y directions.
[0021] By adopting the above technical solution, the redundant wiring section enables the maintenance mechanism to move without power and synchronously cover the processing area.
[0022] In summary, the present invention has the following main advantages:
[0023] 1. This utility model features a maintenance mechanism fixed to the bottom of the wiring rack. The pneumatic hammer outputs vertical impact force through a cylinder, and its instantaneous high-frequency vibration directly acts on the longitudinal support rib nodes of the grid processing table, causing fatigue fracture at the interface between the slag and the metal matrix, thus peeling off the adhered weld slag. Moreover, it drives the pneumatic hammer to move along the slide track, ensuring that the impact point covers the stress concentration area of the honeycomb structure and avoids cleaning dead corners. Therefore, the maintenance mechanism moves laterally synchronously with the displacement of the second linear motor, realizing dynamic cleaning of the entire workbench.
[0024] 2. This utility model uses multiple sets of electric actuators on the mounting frame, each of which independently drives the corresponding cutting head to perform vertical lifting and lowering. This ensures that the plasma, flame, and laser cutting heads maintain a safe lifting distance when in standby mode and accurately move down to the preset cutting focal plane during operation. The multiple sets of electric actuators form a parallel vertical switching module, which directly switches and activates the target cutting head through a single electronic control command. This eliminates the idle travel of the traditional mechanical turret. The center of gravity of the cutting head is arranged collinearly with the thrust axis of the electric actuator, avoiding the deflection torque generated during multi-head switching and ensuring the positioning stability of the cutting trajectory. Attached Figure Description
[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0026] Figure 2 This is a schematic diagram of the structural benefits of this utility model from a bottom view;
[0027] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;
[0028] Figure 4 This utility model Figure 2 A magnified structural diagram at point B in the middle.
[0029] In the diagram: 1. Cutting equipment; 101. Base; 102. First linear motor; 103. Second linear motor; 104. Mounting bracket; 105. Electric actuator; 106. Cutting head; 107. Wiring rack; 108. Grating processing table; 2. Maintenance mechanism; 201. Mounting seat; 202. Slide groove; 203. Lead screw; 204. Lead screw slide; 205. Cylinder; 206. Pneumatic hammer; 207. Motor. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] Example 1:
[0032] A CNC cutting machine for wind turbine towers equipped with a multi-cutting head switching device, such as Figure 1-4 As shown, the device includes a cutting device 1, which includes a base 101, a first linear motor 102, and a second linear motor 103. A wiring frame 107 is provided on the back of the second linear motor 103, and a maintenance mechanism 2 is provided at the bottom of the wiring frame 107.
[0033] The maintenance mechanism 2 includes a mounting base 201. A groove 202 is provided at the bottom of the mounting base 201. A lead screw 203 is rotatably connected in the groove 202. A motor 207 is provided on one side of the mounting base 201. The output end of the motor 207 passes through the mounting base 201 and is fixedly connected to the lead screw 203. A lead screw slide 204 is engaged on the lead screw 203. A cylinder 205 is provided at the bottom of the lead screw slide 204. A pneumatic hammer 206 is provided at the bottom output end of the cylinder 205. By fixing the maintenance mechanism 2 to the bottom of the wiring frame 107 on the back of the second linear motor 103, the mounting base 201, the lead screw 203 and the pneumatic hammer 206 form an integrated follow-up module. Utilizing the rigid support of the wiring frame 107 and the driving capability of the motor 207, the welding slag removal task is performed synchronously during the operation of the cutting equipment, breaking through the limitation of traditional independent maintenance mechanisms that require additional space for equipment travel.
[0034] See Figure 1 , Figure 2 , Figure 3 , Figure 4When cylinder 205 is raised, it is in a stationary state. When cylinder 205 is lowered, pneumatic hammer 206 will strike the grille processing table 108. When cylinder 205 is raised, it remains stationary and locked to ensure a safe clearance between pneumatic hammer 206 and grille processing table 108. The lowering stroke drives pneumatic hammer 206 to release impact energy, which directly acts on the grille surface to achieve non-contact welding slag removal, solving the problem of mechanical scratching damage to the worktable.
[0035] Example 2:
[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 4 A grid processing table 108 is provided at the top center of the base 101. A first linear motor 102 is provided on both sides of the top of the base 101. A second linear motor 103 is provided at the top moving end of the first linear motor 102. The first linear motor 102 on both sides of the top of the base 101 drives the lateral displacement, and the second linear motor 103 on its top moving end performs the longitudinal movement. The orthogonal motion structure covers the entire area of the grid processing table 108, which meets the ultra-long size processing requirements of wind turbine tower plates.
[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The second linear motor 103 has a mounting bracket 104 on its outer surface moving end. The mounting bracket 104 is equipped with multiple sets of electric push rods 105. The mounting bracket 104 integrates multiple sets of parallel electric push rods 105. Each set independently drives a single cutting head 106 to perform vertical lifting and lowering actions. The cutting head can be quickly switched by controlling the stroke of the electric push rods 105, avoiding the cumulative positioning error caused by the spatial stroke during tool changing in traditional rotary tables.
[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 Each of the multiple sets of electric actuators 105 is equipped with a cutting head 106 at its bottom. The cutting head 106 is divided into a sub-cutting head, a flame cutting head, and a laser cutting head. The bottom of the electric actuator 105 is equipped with multiple types of cutting heads 106, including plasma, flame, and laser. By calling the corresponding cutting head 106 to match the differentiated process requirements such as beveling, hole opening, and fine finishing, composite processing can be completed continuously in a single clamping process, eliminating the repositioning deviation caused by process transition.
[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 4The impact trajectory of the pneumatic hammer 206 matches the gap distribution of the honeycomb structure of the grid processing table 108. When the lead screw slide 204 moves along the slide groove 202, the impact point of the pneumatic hammer 206 covers the longitudinal support rib node area of the grid processing table 108. When the lead screw slide 204 moves along the slide groove 202, the impact point of the pneumatic hammer 206 accurately covers the longitudinal support rib node area of the grid processing table 108, so that the impact energy is transmitted to the welding slag adhesion interface through the stress concentration point of the honeycomb structure, achieving targeted cleaning with minimal energy loss.
[0040] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The multiple sets of electric actuators 105 on the mounting frame 104 and the cutting head 106 constitute a vertical switching module. The lower limit of the working stroke of this module and the lifting limit of the pneumatic hammer 206 have a spatial avoidance relationship. The lower limit of the working stroke of the electric actuator 105 and the lifting limit of the pneumatic hammer 206 form a vertical spatial isolation layer, which forcibly isolates the action area of the maintenance mechanism during the downward movement of the cutting head 106, eliminating the risk of motion interference between multi-head switching and slag removal.
[0041] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The cable routing of the cabling frame 107 includes a vertical redundant section extending from the back of the second linear motor 103 to the mounting frame 104. The bending radius of this redundant section allows the mounting frame 104 to synchronously pull the maintenance mechanism 2 to move laterally when it moves in the X / Y direction. The cable routing frame 107 includes a vertical redundant section of cable extending from the second linear motor 103 to the mounting frame 104. The elastic deformation traction force generated by its preset bending radius allows the maintenance mechanism 2 to synchronously slide laterally when the mounting frame 104 moves in the X / Y direction, ensuring that the cleaning range matches the processing position in real time.
[0042] The implementation principle of this embodiment is as follows: First, the first linear motor 102 on both sides of the top of the base 101 drives the second linear motor 103 to move laterally. At the same time, the second linear motor 103 drives the mounting bracket 104 on its outer surface moving end to move longitudinally, so that the cutting head 106 is accurately positioned to the processing starting point in the X / Y plane.
[0043] Next, multiple sets of electric actuators 105 on the mounting frame 104 independently perform vertical lifting and lowering, lowering the target cutting head 106 (plasma / flame / laser) to the preset working height, and starting the cutting program to process the workpiece on the grid processing table 108.
[0044] Perform this simultaneously when it is necessary to clean welding slag:
[0045] Pneumatic hammer 206 working process:
[0046] The downward stroke of cylinder 205 drives pneumatic hammer 206 to generate high-frequency mechanical impact.
[0047] The impact energy is precisely transmitted to the longitudinal support rib node area of the grid processing table 108, and the welding slag is fatigued and detached from the interface layer through the stress wave transmission of the metal matrix.
[0048] Dynamic slag removal and covering mechanism:
[0049] Motor 207 drives lead screw 203 to rotate, forcing lead screw slide 204 to move laterally along slide groove 202;
[0050] During the movement, the landing point of the pneumatic hammer 206 always matches the gap distribution of the honeycomb structure;
[0051] The vertical redundant section of the cabling frame 107 undergoes elastic deformation, and the traction maintenance mechanism 2 slides laterally synchronously with the displacement of the mounting frame 104.
[0052] Security collaboration logic:
[0053] When the cutting head 106 is in operation, the pneumatic hammer 206 is lifted by the cylinder 205 and stops at the clearance height;
[0054] At this point, the cutting head of the electric actuator 105 descends to its lowest point and the pneumatic hammer 206 rises to form a physically isolated airspace, completely avoiding motion interference.
[0055] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A CNC cutting machine for wind turbine towers equipped with a multi-cutting head switching device, characterized in that: The device includes a cutting device (1), which includes a base (101), a first linear motor (102), and a second linear motor (103). A wiring frame (107) is provided on the back of the second linear motor (103), and a maintenance mechanism (2) is provided at the bottom of the wiring frame (107). The maintenance mechanism (2) includes a mounting base (201), a sliding groove (202) is provided at the bottom of the mounting base (201), a lead screw (203) is rotatably connected in the sliding groove (202), a motor (207) is provided on one side of the mounting base (201), and the output end of the motor (207) passes through the mounting base (201) and is fixedly connected to the lead screw (203). A lead screw slide (204) is engaged on the lead screw (203), a cylinder (205) is provided at the bottom of the lead screw slide (204), and a pneumatic hammer (206) is provided at the bottom output end of the cylinder (205).
2. The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device according to claim 1, characterized in that: When the cylinder (205) is raised, it is in a stationary state. When the cylinder (205) is lowered, the pneumatic hammer (206) will strike the grille processing table (108).
3. The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device according to claim 1, characterized in that: A grid processing table (108) is provided at the top center of the base (101), and a first linear motor (102) is provided on both sides of the top of the base (101). A second linear motor (103) is provided at the top moving end of the first linear motor (102).
4. The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device according to claim 1, characterized in that: The second linear motor (103) has a mounting bracket (104) on its outer surface moving end, and the mounting bracket (104) is provided with multiple sets of electric push rods (105).
5. The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device according to claim 4, characterized in that: Each of the multiple sets of electric actuators (105) is provided with a cutting head (106) at its bottom, and the cutting head (106) is divided into a sub-cutting head, a flame cutting head, and a laser cutting head.
6. The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device according to claim 1, characterized in that: The striking trajectory of the pneumatic hammer (206) matches the gap distribution of the honeycomb structure of the grid processing table (108). When the lead screw slide (204) moves along the slide groove (202), the landing point of the pneumatic hammer (206) covers the longitudinal support rib node area of the grid processing table (108).
7. The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device according to claim 4, characterized in that: The multiple sets of electric push rods (105) on the mounting bracket (104) and the cutting head (106) constitute a vertical switching module. The lower limit of the working stroke of this module has a spatial avoidance relationship with the lifting limit of the pneumatic hammer (206).
8. The CNC cutting equipment for wind turbine towers equipped with a multi-cutting head switching device according to claim 1, characterized in that: The cable routing of the wiring rack (107) includes a vertical redundant section extending from the back of the second linear motor (103) to the mounting bracket (104), the bending radius of which allows the mounting bracket (104) to synchronously pull the maintenance mechanism (2) lateral displacement when moving in the X / Y direction.