A wind power blade root vertical slot cutting device

Abstract

The utility model provides a kind of wind power blade root vertical slot cutting device, the cutting device includes: base, rotating workbench, stand, crossbeam, cutting mechanism and control system;Rotating workbench is rotatably set on base, rotating workbench is used to load wind power blade root, the projection of wind power blade root is first circular arc, the center of first circular arc coincides with the center of rotation of rotating workbench;Stand is set to rotating workbench side;Crossbeam is slidably connected to stand;Cutting mechanism is slidably connected to crossbeam along X axis, and cutting mechanism includes cutting tool;Control system is configured to control the rotary motion of rotating workbench, Z axis lifting movement of crossbeam and X axis movement of cutting mechanism;The plane of the center of rotation of rotating workbench and the center line of the vertical slot to be processed is defined as second plane, and the cutting edge of cutting tool coincides with second plane, to improve the technical problems that exist in manual cutting, such as high labor intensity, low efficiency, poor accuracy and easy to lead to product scrap.

Description

Technical Field

[0001] This utility model relates to the field of cutting and processing technology, and in particular to a cutting device for vertical grooves at the root of wind turbine blades. Background Technology

[0002] Wind turbine blades are the core components of wind turbine units that convert natural wind energy into electrical energy, and they are also a major indicator of the design and technological level of wind turbine units. One process in the production and processing of wind turbine blades is cutting vertical grooves at the blade tip at the root of the blade.

[0003] Because the root surface of wind turbine blades is curved, and the actual dimensions of the formed blades have a certain error compared to the dimensions of the digital model, they cannot be directly processed using existing machine tools. Therefore, in the current technology, operators usually use handheld angle grinders for cutting. Manual operation has the following problems: First, the labor intensity of operators is high due to long working hours; second, the product may be damaged if the operator is not careful during cutting, resulting in product scrap; third, the cutting speed of handheld angle grinders is slow; and fourth, manual cutting cannot guarantee cutting accuracy. Utility Model Content

[0004] This utility model provides a wind turbine blade root vertical groove cutting device to improve the technical problems of high labor intensity, low efficiency, poor precision and easy product scrapping caused by manual cutting.

[0005] This utility model provides a wind turbine blade root vertical groove cutting device, which includes: a base, a rotary worktable, a column, a crossbeam, a cutting mechanism, and a control system; the base has an X-axis direction and a Z-axis direction; the rotary worktable is rotatably mounted on the base and is used to load the wind turbine blade root, projecting along the Z-axis toward the base, and the projection of the wind turbine blade root is a first arc, the center of which coincides with the rotation center of the rotary worktable; the column is located beside the rotary worktable; the crossbeam is slidably connected to the column along the Z-axis; the cutting mechanism is slidably connected to the crossbeam along the X-axis, and a plane passing through the X-axis and Z-axis is defined as a first plane, the cutting mechanism including a cutting tool arranged parallel to the first plane; the control system is configured to control the rotational movement of the rotary worktable, the Z-axis lifting movement of the crossbeam, and the X-axis movement of the cutting mechanism; wherein, when cutting the wind turbine blade root, a plane passing through the rotation axis of the rotary worktable and the centerline of the vertical groove to be processed is defined as a second plane, and the cutting edge of the cutting tool coincides with the second plane.

[0006] In one embodiment of the present invention, multiple vertical grooves are provided at intervals along the circumferential direction of the root of the wind turbine blade; the cutting device also includes a positioning fixture, which is installed on the side of the rotating worktable facing the base, and the positioning fixture includes multiple positioning parts; projecting along the Z-axis toward the base, the multiple positioning parts are arranged at intervals along the second arc, the second arc and the first arc are concentric arcs, and the multiple vertical grooves and the multiple positioning parts correspond one to one.

[0007] In one embodiment of the present invention, the cutting device further includes a positioning and clamping mechanism, which is disposed on the base. The positioning and clamping mechanism includes a clamping part that can reciprocate along the X-axis, and the movement direction of the clamping part is through the rotation axis of the rotary table. In response to the rotary table rotating to a processing station, the clamping part moves to abut against the positioning part to fix the positioning fixture.

[0008] In one embodiment of the present invention, the positioning part is a V-shaped groove facing the positioning and clamping mechanism, and the clamping part is a wedge-shaped block adapted to the V-shaped groove.

[0009] In one embodiment of the present invention, the cutting device further includes a sensor connected to the control system. The sensor is disposed on the base and located on the outer periphery of the positioning fixture. The positioning fixture includes a plurality of sensing parts facing the sensor and corresponding one-to-one with the positioning part. The sensor is configured to send a signal to the control system when it detects the sensing part.

[0010] In one embodiment of the present invention, the rotary worktable further includes a drive mechanism, which is disposed on the base and is connected to the rotary worktable for driving the rotary worktable to perform indexing rotation so that multiple vertical slots enter the processing station in sequence; the control system is connected to the rotary drive mechanism for control.

[0011] In one embodiment of this utility model, the rotary worktable has a fan-shaped structure; there are three columns, including a first column, a second column and a third column; the first column is located in front of the radially outer side of the rotary worktable of the fan-shaped structure; the second column and the third column are located on both sides of the rotation axis along the X-axis; the tops of the second column and the third column are connected by a connecting frame, one end of the crossbeam is connected to the connecting frame, and the other end is connected to the first column.

[0012] In one embodiment of this utility model, the wind turbine blade root has an arc-shaped structure, and vertical grooves to be processed are provided on both the inner and outer arc surfaces of the wind turbine blade root; there are two cutting mechanisms, including a first cutting mechanism and a second cutting mechanism, both of which are slidably connected to a crossbeam. The first cutting mechanism includes a first cutting tool, and the second cutting mechanism includes a second cutting tool; when cutting the wind turbine blade root, the first cutting mechanism is located radially inner to the wind turbine blade root, and the cutting edge of the first cutting tool faces the inner arc surface of the wind turbine blade root; the second cutting mechanism is located radially outer to the wind turbine blade root, and the cutting edge of the second cutting tool faces the outer arc surface of the wind turbine blade root.

[0013] In one embodiment of the present invention, the vertical groove extends downward from the upper end of the wind turbine blade root and penetrates the entire radial thickness of the upper end of the wind turbine blade root, thereby forming multiple spaced protrusions at the upper end, and forming a groove between adjacent protrusions; the first cutting mechanism and the second cutting mechanism are staggered along the Z-axis direction.

[0014] In one embodiment of the present invention, the cutting mechanism further includes a motor and a limiting member; the cutting tool is connected to the motor for transmission, the limiting member is disposed on the motor, and a preset distance is left between the limiting member and the cutting edge of the tool to limit the cutting depth of the tool.

[0015] The beneficial effects of this utility model: The wind turbine blade root vertical groove cutting device proposed in this utility model establishes the basic structure for automated processing by setting up linear motion mechanisms along the X and Z axes and combining them with a rotary table that can be indexed and rotated. This design includes specific geometric constraints: the center of the projected arc of the wind turbine blade root coincides with the rotation center of the rotary table, providing a benchmark for processing accuracy. The cutting edge of the cutting tool coincides with the plane passing through the rotation axis and the centerline of the vertical groove to be processed, ensuring that the cutting tool remains centered during the cutting process. This design adapts to the arcuate contour of the wind turbine blade root, avoiding groove shape deviation during cutting, improving processing efficiency while ensuring product cutting accuracy, and achieving automated processing. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the main structure of the wind turbine blade root vertical groove cutting device provided in one embodiment of the present invention; Figure 2 Provided in one embodiment of this utility model Figure 1 A magnified view of a section at point A in the middle; Figure 3 Provided in one embodiment of this utility model Figure 2 A magnified view of a section at point B in the middle; Figure 4 This is a top view structural schematic diagram of the wind turbine blade root vertical groove cutting device provided in one embodiment of the present invention; Figure 5 This is a schematic diagram of the positioning component and positioning clamping mechanism provided in one embodiment of the present invention; Figure 6 This is provided in one embodiment of the present utility model. Figure 5 A magnified view of a section at point C.

[0018] The attached figures are labeled as follows: 100. Base; 200. Rotary worktable; 210. Drive mechanism; 220. Rotary shaft; 300. Column; 310. First column; 320. Second column; 330. Third column; 340. Connecting frame; 400. Crossbeam; 500. Cutting mechanism; 510. First cutting mechanism; 520. Second cutting mechanism; 530. Cutting tool; 540. Limiting component; 600. Positioning fixture; 610. Positioning part; 620. Second arc; 630. Sensing part; 700. Positioning clamping mechanism; 710. Clamping part; 800. Sensor; 900. Wind turbine blade root; 910. Vertical groove; 920. Protrusion; 930. Groove; 940. First arc. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0022] Please see Figures 1 to 6 This utility model provides a vertical groove cutting device for the root of a wind turbine blade. The cutting device includes: a base 100, a rotary worktable 200, a column 300, a crossbeam 400, a cutting mechanism 500, and a control system. By establishing linear motion mechanisms along the X and Z axes, combined with the indexable rotary worktable 200, and designing specific geometric constraints, the cutting device adapts to the arc-shaped contour of the wind turbine blade root 900, avoiding groove deviation during the cutting process. This improves processing efficiency while ensuring product cutting accuracy, achieving automated processing.

[0023] Please see Figure 1 The base 100 has X-axis and Z-axis directions. The structural form of the base 100 is not limited, as long as it can stably bear weight and install other structural components. Since the vertical slots 910 are arranged along an arc trajectory in the circumferential direction of the wind turbine blade root 900, the rotary table 200 is rotatably mounted on the base 100. The rotary table 200 is used to load the wind turbine blade root 900, and its projection along the Z-axis onto the base 100 forms a first arc 940, the center of which coincides with the rotation center of the rotary table 200. This arrangement enables precise indexing rotation of the wind turbine blade root 900. This allows the device to automatically and accurately rotate each vertical slot 910 to be processed sequentially to the processing station. Preferably, in this embodiment, multiple rolling elements are also provided on the base 100, located between the rotary table 200 and the base 100, and arranged along the rotation trajectory of the rotary table 200. This design allows the rotary worktable 200 to roll against the base 100 during rotation, reducing friction. The column 300 is positioned beside the rotary worktable 200. The crossbeam 400 is slidably connected to the column 300 along the Z-axis. The number and structure of the columns 300 are not limited, as long as they allow the crossbeam 400 to slide and move along the Z-axis. The cutting mechanism 500 is slidably connected to the crossbeam 400 along the X-axis to accommodate the processing of wind turbine blade roots 900 of different specifications. The arrangement of the base 100, column 300, crossbeam 400, and cutting mechanism 500 establishes the basic structure for automated processing. It should be noted that other power and transmission mechanisms that enable the lifting of the crossbeam 400 along the Z-axis and the movement of the cutting mechanism 500 along the X-axis can be obtained from existing designs or commercial means, and will not be elaborated upon here.

[0024] The control system (not shown in the figure) is configured to control the rotation of the rotary table 200, the Z-axis lifting motion of the crossbeam 400, and the X-axis movement of the cutting mechanism 500. The control system enables multi-groove continuous automated processing, improves production efficiency, and frees operators from heavy manual labor, solving the technical problems of high labor intensity and slow cutting speed for operators.

[0025] Please see Figure 1 and Figure 2A plane passing through the X and Z axes is defined as the first plane. The cutting mechanism 500 includes a cutting tool 530 arranged parallel to the first plane. The first plane is the main plane for the cutting motion. It ensures that the feed motion of the cutting tool 530 along the X-axis and the cutting motion along the Y-axis occur within a fixed plane, guaranteeing the rigidity and stability of the cutting motion, thereby ensuring the straightness and surface quality of the cut groove. When cutting the root 900 of the wind turbine blade, a plane passing through the rotation axis 220 of the rotary table 200 and the centerline of the vertical groove 910 to be processed is defined as the second plane, and the cutting edge of the cutting tool 530 coincides with the second plane. The above settings ensure that the theoretical rotation center of the wind turbine blade root 900 is strictly aligned with the actual rotation center of the rotary table 200 during installation. This is a prerequisite for all subsequent precise machining, eliminating the cumulative error caused by workpiece eccentricity from the source. The design of this application is adapted to the arc-shaped profile of the root 900 of the wind turbine blade, avoiding groove deviation during the cutting process, improving processing efficiency while ensuring product cutting accuracy, and realizing automated processing.

[0026] Please see Figure 4 and Figure 5 In one embodiment of this utility model, a plurality of vertical grooves 910 are provided at intervals along the circumference of the wind turbine blade root 900; the cutting device also includes a positioning fixture 600, which is installed on the side of the rotary table 200 facing the base 100, and the positioning fixture 600 includes a plurality of positioning parts 610. Please refer to Figure 4 Projecting along the Z-axis toward the base 100, multiple positioning parts 610 are arranged at intervals along the second arc 620, which is concentric with the first arc 940. Multiple vertical slots 910 and multiple positioning parts 610 correspond one-to-one. It should be noted that... Figure 4 The positioning fixture 600 marked in the diagram is not actually installed in that position; it is merely an illustration of the position in which the positioning fixture 600 is located. The positioning fixture 600 allows the control system or operator to lock the worktable at each correct machining angle without relying on vague visual aiming or manual measurement. This is achieved simply by using other mechanisms in conjunction with these preset positioning units 610, ensuring that each vertical groove 910 is machined in the correct position on the circumference. After machining one vertical groove 910, the cutting device can quickly and accurately rotate and position itself to the next station, improving the efficiency of continuous processing. Furthermore, the positioning fixture 600 also improves the consistency of circumferential positional accuracy of all machined vertical grooves 910. Regardless of which groove is being machined, the positioning reference originates from the same set of positioning fixtures 600, effectively avoiding cumulative errors and ensuring stable quality of batch products.

[0027] Please see Figure 4 and Figure 5In one embodiment of this utility model, the cutting device further includes a positioning and clamping mechanism 700. The positioning and clamping mechanism 700 is disposed on the base 100 and includes a clamping part 710 that can reciprocate along the X-axis. The movement direction of the clamping part 710 is via the rotation axis 220 of the rotary table 200. In response to the rotary table 200 rotating to a processing position, the clamping part 710 moves to abut against the positioning part 610 to fix the positioning fixture 600. After the rotary table 200 has approximately rotated to the processing position, the positioning and clamping mechanism 700, through the clamping part 710, precisely aligns with and abuts against the positioning part 610 along the X-axis, and can actively correct and ultimately determine the angular position of the rotary table 200. Even if the drive mechanism 210 of the rotary table 200 has minor stopping errors or transmission backlash, the positioning and clamping mechanism 700 can force the rotary table 200 back to a unique and precise preset angle through the rigid contact pair of the clamping part 710 and the positioning part 610. This is equivalent to providing a physical hard limit for each machining station, which can alleviate random errors and backlash during rotation and ensure the accuracy and consistency of circumferential positioning of each vertical groove 910. In addition, after precise positioning is completed, the clamping part 710, by maintaining contact with the positioning part 610, firmly locks the originally freely rotating table in the current machining position, which helps to improve the quality of the cut surface.

[0028] Please see Figure 6 In one embodiment of this utility model, the positioning part 610 is a V-shaped groove facing the positioning clamping mechanism 700, and the clamping part 710 is a wedge-shaped block adapted to the V-shaped groove. When the wedge-shaped block moves towards and abuts against the V-shaped groove, under the guidance of the inclined surface, the rotary table 200 is automatically fine-tuned to a certain center position, realizing self-centering positioning and improving repeatability. The two inclined surfaces of the V-shaped groove are in close contact with the two inclined surfaces of the wedge-shaped block. This surface contact can decompose the tangential force generated during the cutting process into pressure, thereby enhancing the locking stability of the rotary table 200 during cutting, and thus improving the cutting quality of the vertical groove 910.

[0029] Please see Figure 1 and Figure 3In one embodiment of this utility model, the cutting device further includes a sensor 800 connected to the control system signal. The sensor 800 is disposed on the base 100 and located on the outer periphery of the positioning fixture 600. The positioning fixture 600 includes a plurality of sensing parts 630 facing the sensor 800 and corresponding one-to-one with the positioning part 610. The sensor 800 is configured to send a signal to the control system when it detects the sensing part 630. Various types of sensors 800 can be selected, such as proximity switches, photoelectric sensors, magnetic sensors, or limit switches, etc., and are not limited thereto. In this embodiment, the sensor 800 uses a proximity switch. The design of the sensing part 630 can also be varied, such as a screw, nut, or plate for easy material handling. The sensor 800 can accurately detect the sensing part 630 on the positioning fixture 600 corresponding to each processing position, thereby converting the ambiguous angular position of the rotating worktable 200 into a clear arrival signal that can be recognized by the control system. It replaces manual observation and judgment, provides a decision-making basis for the control system, and ensures that subsequent positioning, clamping, and cutting actions are initiated only at the correct positions.

[0030] Please see Figure 4 In one embodiment of this utility model, the rotary worktable 200 further includes a drive mechanism 210. The drive mechanism 210 is disposed on the base 100 and is connected to the rotary worktable 200 for transmission. It is used to drive the rotary worktable 200 to perform indexing rotational movement so that multiple vertical slots 910 sequentially enter the processing station. Specifically, the drive mechanism 210 in this embodiment is a hydraulic cylinder. The hydraulic cylinder is rotatably connected to the base 100, and the end of the piston rod of the hydraulic cylinder is connected to the rotary worktable 200. When the piston rod extends, it pushes the rotary worktable 200 to rotate around the rotation axis 220. This drive mechanism 210 has the advantages of low cost and simple installation and maintenance. If cost or maintenance difficulty is not a concern, the drive mechanism 210 of the rotary worktable 200 can be a servo motor, hydraulic motor, or torque motor, etc. Furthermore, the control system is connected to the rotary drive mechanism 210 to achieve automated control of the drive mechanism 210.

[0031] Please see Figure 4In one embodiment of this utility model, the rotary worktable 200 has a fan-shaped structure; there are three columns 300, including a first column 310, a second column 320, and a third column 330; the first column 310 is located in front of the radially outer side of the fan-shaped rotary worktable 200; the second column 320 and the third column 330 are located on both sides of the rotation axis 220 along the X-axis; the tops of the second column 320 and the third column 330 are connected by a connecting frame 340, one end of the crossbeam 400 is connected to the connecting frame 340, and the other end is connected to the first column 310. The connecting frame 340 connects the second column 320 and the three columns 300, forming a stable triangular support frame together with the first column 310. This layout provides solid support for the crossbeam 400. In addition, this design avoids the maximum span required by the conventional double-column 300 portal structure, which shortens the length of the crossbeam 400 and the overall frame, thereby reducing the overall footprint of the equipment.

[0032] Please see Figure 2 In one embodiment of this utility model, the wind turbine blade root 900 has an arc-shaped structure, and vertical grooves 910 to be processed are provided on both the inner and outer arc surfaces of the wind turbine blade root 900. There are two cutting mechanisms 500, including a first cutting mechanism 510 and a second cutting mechanism 520. Both the first cutting mechanism 510 and the second cutting mechanism 520 are slidably connected to the crossbeam 400. The first cutting mechanism 510 includes a first cutting tool 530, and the second cutting mechanism 520 includes a second cutting tool 530. When cutting the wind turbine blade root 900, the first cutting mechanism 510 is located on the radial inner side of the wind turbine blade root 900, and the cutting edge of the first cutting tool 530 faces the inner arc surface of the wind turbine blade root 900. The second cutting mechanism 520 is located on the radial outer side of the wind turbine blade root 900, and the cutting edge of the second cutting tool 530 faces the outer arc surface of the wind turbine blade root 900. By independently setting cutting mechanisms 500 on the inner and outer arc surfaces respectively, the vertical grooves 910 on the inner and outer arc surfaces of the blade root can be processed simultaneously or continuously after a single clamping and positioning, reducing the total processing time by nearly half and improving production efficiency. Furthermore, the first cutting mechanism 510 and the second cutting mechanism 520 are based on the same positioning reference system, which facilitates precise alignment of the vertical grooves 910 on the inner and outer arc surfaces in the circumferential direction, mitigating misalignment errors that may occur due to secondary clamping or multi-stage processing, and improving the accuracy and quality consistency of the product.

[0033] Please see Figure 2In one embodiment of this utility model, the vertical groove 910 extends downward from the upper end of the wind turbine blade root 900 and penetrates the entire radial thickness of the upper end of the wind turbine blade root 900, thereby forming multiple spaced protrusions 920 at the upper end, with grooves 930 formed between adjacent protrusions 920; the first cutting mechanism 510 and the second cutting mechanism 520 are staggered along the Z-axis. During the cutting process, the cutting mechanism 500 located at the higher position is responsible for cutting the groove 930, while the cutting mechanism 500 located at the lower position starts from an initial position where its cutting edge is below the bottom of the groove 930 and directly cuts the main body of the vertical groove 910 on its side. This achieves synchronous operation of the first cutting mechanism 510 and the second cutting mechanism 520, avoiding motion interference.

[0034] Please see Figure 2 In one embodiment of this utility model, the cutting mechanism 500 further includes a motor (not shown) and a limiting member 540; the cutting tool 530 is connected to the motor for transmission, and the limiting member 540 is disposed on the motor. A preset distance is left between the limiting member 540 and the cutting edge of the tool to limit the cutting depth of the tool. The limiting member 540 is preferably a rotatable cylindrical component, which can be coaxial with the motor spindle or not. In this embodiment, the limiting member 540 is a cylinder coaxial with the motor spindle, and the diameter of the limiting member 540 is smaller than the diameter of the tool. Half of the difference between the diameter of the limiting member 540 and the diameter of the tool corresponds to the allowable cutting depth of the tool. This setting serves to limit the cutting depth of the tool and meet the requirements of cutting accuracy. It should be noted that the tool can be adaptively adjusted according to the processing needs, including but not limited to: grinding wheels, saw blades, or milling cutters.

[0035] In one embodiment of this utility model, the working process of the cutting device is as follows: First, the wind turbine blade root 900 is installed on the vise clamp of the rotary worktable 200. The centerline of the wind turbine blade root 900 is aligned with the cutting tool 530. The rotary worktable 200, crossbeam 400, cutting mechanism 500, and positioning clamping mechanism 700 are reset to the "zero" position. The motor of the cutting mechanism 500 is started, and the cooling water is turned on. The cutting device performs automatic cutting according to the program. First, the drive mechanism 210 is activated, pushing the rotary worktable 200 to rotate around the rotating shaft 220 until the first positioning V-groove of the positioning fixture 600 contacts the proximity switch. The proximity switch light illuminates, and the proximity switch transmits the signal to the control system. The positioning clamping mechanism 700 is activated for positioning. The first cutting mechanism 500... The first and second cutting mechanisms 510 and 520 begin cutting the vertical groove 910 along the X and Z axes. After cutting the first vertical groove 910, the first cutting mechanism 510, the second cutting mechanism 520, and the positioning and clamping mechanism 700 return to the zero position. The drive mechanism 210 then moves, pushing the rotary table 200 to rotate to the second positioning V-groove of the positioning fixture 600. The corresponding actions are the same as those for the first vertical groove 910, and the vertical groove 910 is cut. This process continues until all the vertical grooves 910 on the wind turbine blade root 900 are cut. After the product is cut, the equipment automatically stops. During the cutting process, the operator only needs to observe whether the equipment is cutting according to the cutting program. This cutting device achieves automatic cutting, ensures product cutting accuracy, improves cutting quality, and reduces the labor intensity of workers.

[0036] The beneficial effects of this utility model: The wind turbine blade root vertical groove cutting device proposed in this utility model establishes the basic structure for automated processing by setting up linear motion mechanisms along the X and Z axes and combining them with a rotary table that can be indexed and rotated. This design includes specific geometric constraints: the center of the projected arc of the wind turbine blade root coincides with the rotation center of the rotary table, providing a benchmark for processing accuracy. The cutting edge of the cutting tool coincides with the plane passing through the rotation axis and the centerline of the vertical groove to be processed, ensuring that the cutting tool remains centered during the cutting process. This design adapts to the arcuate contour of the wind turbine blade root, avoiding groove shape deviation during cutting, improving processing efficiency while ensuring product cutting accuracy, and achieving automated processing.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A wind turbine blade root vertical groove cutting device, characterized in that, include: The base has X-axis and Z-axis directions; A rotating worktable is rotatably mounted on the base. The rotating worktable is used to load the wind turbine blade root and projects along the Z-axis toward the base. The projection of the wind turbine blade root is a first arc, and the center of the first arc coincides with the rotation center of the rotating worktable. The column is located beside the rotary table; A crossbeam is slidably and vertically connected to the column along the Z-axis; A cutting mechanism is movably and slidably connected to the crossbeam along the X-axis. A plane passing through the X-axis and the Z-axis is defined as a first plane. The cutting mechanism includes a cutting tool arranged parallel to the first plane. The control system is configured to control the rotational movement of the rotary table, the Z-axis lifting movement of the crossbeam, and the X-axis movement of the cutting mechanism; When cutting the root of the wind turbine blade, a plane passing through the rotation axis of the rotary worktable and the center line of the vertical groove to be processed is defined as the second plane, and the cutting edge of the cutting tool coincides with the second plane.

2. The cutting device according to claim 1, characterized in that, Multiple vertical grooves are provided at circumferential intervals along the root of the wind turbine blade; The cutting device further includes a positioning fixture, which is installed on the side of the rotary table facing the base, and the positioning fixture includes multiple positioning parts; Projecting along the Z-axis toward the base, a plurality of positioning parts are arranged at intervals along a second arc, the second arc being concentric with the first arc, and a plurality of vertical grooves and a plurality of positioning parts corresponding one to one.

3. The cutting device according to claim 2, characterized in that, The cutting device further includes a positioning and clamping mechanism disposed on the base. The positioning and clamping mechanism includes a clamping part that can reciprocate along the X-axis, and the movement direction of the clamping part is through the rotation axis of the rotary table. In response to the rotary table rotating to a processing station, the clamping part moves to abut against the positioning part to fix the positioning fixture.

4. The cutting device according to claim 3, characterized in that, The positioning part is a V-shaped groove facing the positioning and clamping mechanism, and the clamping part is a wedge-shaped block adapted to the V-shaped groove.

5. The cutting device according to claim 2, characterized in that, The cutting device further includes a sensor connected to the control system. The sensor is disposed on the base and located on the outer periphery of the positioning fixture. The positioning fixture includes a plurality of sensing parts facing the sensor and corresponding one-to-one with the positioning part. The sensor is configured to send a signal to the control system when it detects the sensing part.

6. The cutting device according to claim 1, characterized in that, The rotary worktable also includes a drive mechanism, which is disposed on the base and is connected to the rotary worktable for driving the rotary worktable to perform indexing rotational motion so that the multiple vertical slots enter the processing station in sequence. The control system is connected to the rotary drive mechanism.

7. The cutting device according to claim 1, characterized in that, The rotary worktable has a fan-shaped structure; The number of columns is three, including a first column, a second column, and a third column; The first column is located in front of the radially outer side of the rotary table of the fan-shaped structure; The second column and the third column are located on both sides of the rotation axis along the X-axis direction; The tops of the second column and the third column are connected by a connecting frame. One end of the crossbeam is connected to the connecting frame, and the other end is connected to the first column.

8. The cutting device according to claim 1, characterized in that, The wind turbine blade root has an arc-shaped structure, and the vertical groove to be processed is provided on both the inner and outer arc surfaces of the wind turbine blade root. The cutting mechanism has two parts, including a first cutting mechanism and a second cutting mechanism. Both the first cutting mechanism and the second cutting mechanism are slidably connected to the crossbeam. The first cutting mechanism includes a first cutting tool, and the second cutting mechanism includes a second cutting tool. When cutting the root of the wind turbine blade, the first cutting mechanism is located radially inside the root of the wind turbine blade, and the cutting edge of the first cutting tool faces the inner arc surface of the root of the wind turbine blade. The second cutting mechanism is located radially outside the root of the wind turbine blade, and the cutting edge of the second cutting tool faces the outer arc surface of the root of the wind turbine blade.

9. The cutting device according to claim 8, characterized in that, The vertical groove extends downward from the upper end of the wind turbine blade root and penetrates the entire radial thickness of the upper end of the wind turbine blade root, thereby forming multiple spaced protrusions at the upper end, with grooves formed between adjacent protrusions. The first cutting mechanism and the second cutting mechanism are offset along the Z-axis.

10. The cutting device according to claim 1, characterized in that, The cutting mechanism also includes a motor and a limiting member; the cutting tool is connected to the motor for transmission, the limiting member is disposed on the motor, and a preset distance is left between the limiting member and the cutting edge of the tool to limit the cutting depth of the tool.

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