Wire cutting mechanism of a multi-axis wire cutting machine

Abstract

The utility model belongs to the wind turbine processing equipment technical field especially relates to a wire silk cutting mechanism of multi -axis wire cutting machine, including crossbeam, the both ends of crossbeam are fixedly connected with the tension pulley support and driving pulley support respectively, the one end of tension pulley support and driving pulley support all is provided with transmission, and the other end of tension pulley support and driving pulley support is provided with tensioner and wire silk drive arrangement respectively, and is wound with cutting steel wire on tensioner, wire silk drive arrangement and two transmission, the utility model adopts above -mentioned technical scheme, and the structure is reasonable, and the finished product surface is more level and beautiful through cutting steel wire to carry out cutting processing to foam block, will not be like traditional processing equipment to form processing knife mark on the surface of special-shaped foam block, influences the installation of wind wheel blade, and the reasonable setting of tensioner facilitates the quick installation and replacement of cutting steel wire, improves work efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of wind turbine processing equipment, and in particular relates to a wire cutting mechanism of a multi-axis wire cutting machine. Background Technology

[0002] A wind turbine generator set includes a wind rotor and a generator. The wind rotor consists of blades, a hub, and reinforcement components, and has the function of generating electricity by rotating the blades under wind power. The core material inside the blades is mainly made of PET foam, which also has the functions of structural support and heat insulation. Because the blades have an irregular shape, the core material inside the blades is also an irregular shape. From the root to the tip of the blade, it is composed of multiple irregularly shaped foam blocks of varying sizes. The two ends of the irregularly shaped foam blocks are parallel, while the other four sides are irregularly shaped.

[0003] Traditional processes for processing irregularly shaped foam blocks inside blades typically involve first cutting the foam block into thin sheets, then bonding them together to form a foam block slightly larger than the irregularly shaped one, and finally using a five-axis machining center to remove the material. This process is cumbersome, results in significant material loss, poor processing accuracy, and extremely low production efficiency. Therefore, there is an urgent need for new equipment to produce irregularly shaped foam blocks, and the cutting section of the new equipment is a key part that needs to be considered during the design phase. Utility Model Content

[0004] The main technical problem to be solved by this utility model is to provide a wire cutting mechanism for a multi-axis wire cutting machine, which can reduce waste generation, improve product quality, and increase work efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A wire cutting mechanism for a multi-axis wire cutting machine includes a crossbeam, with a tension wheel bracket and a drive wheel bracket fixedly connected to both ends of the crossbeam. A transmission device is provided at one end of both the tension wheel bracket and the drive wheel bracket, and a tensioning device and a wire driving device are provided at the other end of both the tension wheel bracket and the drive wheel bracket. A cutting wire is wound on the tensioning device, the wire driving device, and the two transmission devices.

[0006] The following are further optimizations of the above technical solution by this utility model: The transmission device includes a transmission wheel, which is rotatably connected to the tension wheel bracket or the drive wheel bracket via a first rotating shaft assembly.

[0007] Further optimization: The first rotating shaft assembly includes a mounting shaft, which is fixedly connected to the tension wheel bracket or the drive wheel bracket. The mounting shaft is rotatably connected to a bearing housing via a bearing assembly, and the transmission wheel is fixedly connected to the bearing housing.

[0008] Further optimization: The mounting shaft has a threaded connection with a lock nut to limit the axial position of the bearing assembly.

[0009] Further optimization: A bearing cap is fixed to the bearing housing.

[0010] Further optimization: The tensioning device includes a sliding plate, which is located below and slidably connected to the tensioning wheel bracket. The side of the sliding plate away from the tensioning wheel bracket is rotatably connected to the tensioning wheel via a second rotating shaft assembly.

[0011] Further optimization: A second cylinder is installed on the tension wheel bracket, and the extension rod of the second cylinder is fixedly connected to the sliding plate.

[0012] Further optimization: The wire drive device includes a fifth motor, which is fixedly mounted on the drive wheel bracket. The output end of the fifth motor is connected to the drive wheel through a connecting sleeve.

[0013] Further optimization: The drive wheel, tension wheel, and two drive wheels are located on the same plane, and the cutting wire is wound around the drive wheel, tension wheel, and two drive wheels.

[0014] This utility model adopts the above-mentioned technical solution, with ingenious conception and reasonable structure. The equipment can drive the wire cutting mechanism to move in the Y and Z axis directions and rotate in the XZ plane. It can also drive the rotary table to rotate the foam block in the XY plane, thereby facilitating the wire cutting mechanism to perform multi-angle rapid cutting of the foam block in one go, forming irregularly shaped foam blocks. By cutting the foam block with cutting wire, the surface of the finished product is smoother and more beautiful, and it will not form processing marks on the surface of irregularly shaped foam blocks like traditional processing equipment, which would affect the installation of wind turbine blades. The reasonable setting of the tensioning device facilitates the quick installation and replacement of the cutting wire, improving work efficiency.

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the multi-axis wire cutting machine in the embodiments of this utility model; Figure 2 This is a schematic diagram of the structure of the rotary table in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the first driving device in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the second driving device in an embodiment of this utility model; Figure 5 This is a schematic diagram of the rotary drive mechanism in an embodiment of the present invention; Figure 6 This is a cross-sectional structural diagram of the rotary drive mechanism in an embodiment of the present invention; Figure 7 This is a schematic diagram of the wire cutting mechanism in an embodiment of the present invention; Figure 8 This is a schematic diagram of the wire cutting mechanism from another perspective in an embodiment of this utility model; Figure 9 This is a schematic diagram of the structure of the first rotating shaft assembly in an embodiment of the present invention; Figure 10 This is a cross-sectional structural diagram of the tensioning device in an embodiment of this utility model; Figure 11 This is a cross-sectional structural diagram of the wire driving device in an embodiment of this utility model; Figure 12 This is a schematic diagram of the irregularly shaped foam block in an embodiment of the present invention.

[0017] In the diagram: 1-Bed frame; 2-Rotary worktable; 201-Lower support; 202-First slewing bearing; 203-Clamping frame; 2031-Quick locking clamp; 204-First motor; 205-First reducer; 3-First drive device; 301-First guide rail; 302-First slider; 303-First lead screw support block; 304-First lead screw; 305-First nut seat; 306-Third motor; 307-Motor base; 4-Vertical beam; 5-Second drive device; 501-Second guide rail; 502-Second slider; 503-Second lead screw support block; 504-Second lead screw; 505-Second nut seat; 506-Fourth motor; 507-First cylinder; 6-Rotary drive mechanism; 601-Mounting frame; 602-Bearing mounting plate; 603-Bearing fixing plate; 604-Second slewing bearing Support; 605-Crossbeam adapter plate; 606-Second reducer; 607-Second motor; 608-Adapter flange sleeve; 7-Wire cutting mechanism; 701-Crossbeam; 702-Crossbeam fixing plate; 703-Tensioning wheel bracket; 704-Drive wheel bracket; 705-Transmission device; 7051-Transmission wheel; 7052-Mounting shaft; 7053-Bearing seat; 7054-Bearing assembly; 7055-Locking nut; 7056-Bearing cover; 706-Tensioning device; 7061-Tensioning wheel; 7062-Sliding assembly; 7063-Sliding plate; 7064-Second rotating shaft assembly; 7065-Second cylinder; 707-Wire drive device; 7071-Drive wheel; 7072-Connecting sleeve; 7073-Fifth motor; 708-Cutting wire; 8-Foam block; 9-Irregularly shaped foam block. Detailed Implementation

[0018] like Figure 1-12As shown: A multi-axis wire cutting machine includes a bed frame 1, a rotary worktable 2 is provided above the bed frame 1 near one end, a vertical beam 4 is slidably connected above the bed frame 1 via a first drive device 3, the vertical beam 4 is arranged perpendicular to the bed frame 1, a rotary drive mechanism 6 is slidably connected to the side of the vertical beam 4 near the rotary worktable 2 via a second drive device 5, and a wire cutting mechanism 7 is provided on the working end of the rotary drive mechanism 6.

[0019] This design defines the width direction of the bed frame 1 as the X-axis of the multi-axis wire cutter, the length direction of the bed frame 1 as the Y-axis of the multi-axis wire cutter, and the length direction of the vertical beam 4 as the Z-axis of the multi-axis wire cutter. The equipment can drive the wire cutting mechanism 7 to move in the Y and Z axis directions and rotate in the XZ plane. The rotary worktable 2 can drive the foam block 8 to rotate in the XY plane, thus facilitating the wire cutting mechanism 7 to perform multi-faceted and multi-angle rapid cutting of the foam block 8 in one go, forming irregularly shaped foam blocks 9. The foam blocks 8 can be arranged in a reasonable manner to form irregularly shaped foam blocks 9 of different sizes, which greatly reduces waste, material loss, and production costs. Furthermore, multiple irregularly shaped foam blocks 9 can be processed on one foam block 8 at one time, greatly improving work efficiency.

[0020] The rotary table 2 includes a lower support 201, which is fixedly connected to the bed frame 1. A clamping frame 203 is rotatably connected above the lower support 201 via a first slewing bearing 202. The lower support 201 is fixedly connected to the inner ring of the first slewing bearing 202, and the clamping frame 203 is fixedly connected to the outer ring of the first slewing bearing 202.

[0021] A slewing bearing is a large bearing capable of withstanding combined loads, including large axial and radial loads and overturning moments. It consists of inner and outer rings, rolling elements, etc.

[0022] The first slewing bearing 202 is preferably a single-row cross roller slewing bearing.

[0023] The lower support 201 is equipped with a first reducer 205 and a first motor 204 for driving the clamping frame 203 to rotate. The output end of the first motor 204 is connected to the input end of the first reducer 205, and the output end of the first reducer 205 is connected to the clamping frame 203.

[0024] This design facilitates the first motor 204 to drive the clamping frame 203 to rotate, and drives the foam block 8 to rotate in the XY plane.

[0025] Multiple quick-locking clamps 2031 are installed at one end of the clamping frame 203, so as to quickly and easily fix the foam block 8 onto the clamping frame 203.

[0026] The first drive device 3 includes two first guide rails 301 arranged in parallel at a certain distance. The first guide rails 301 are fixedly connected to the bed frame 1. Each first guide rail 301 is slidably connected with three first sliders 302, and the first sliders 302 are fixedly connected to the bottom of the vertical beam 4.

[0027] In addition to this embodiment, the number of first sliders 302 slidably connected on each first guide rail 301 can be two or more.

[0028] A first lead screw 304 is provided between the two first guide rails 301. The first lead screw 304 is rotatably connected to the bed frame 1 through the first lead screw support block 303. A first nut seat 305 is threaded on the first lead screw 304 and is fixedly connected to the vertical beam 4.

[0029] A third motor 306 is mounted on the bed frame 1 via a motor mount 307. The output end of the third motor 306 is connected to the first lead screw 304 for transmission, thereby facilitating the movement of the vertical beam 4 along the length of the bed frame 1, and in turn driving the wire cutting mechanism 7 to move in the Y-axis direction.

[0030] The second driving device 5 includes two second guide rails 501 arranged in parallel at a certain distance. The second guide rails 501 are fixedly connected to the vertical beam 4. Each second guide rail 501 has two second sliders 502 slidably connected to it. The second sliders 502 are fixedly connected to the rotary driving mechanism 6.

[0031] In addition to this embodiment, the number of second sliders 502 slidably connected on each second guide rail 501 can be more than two.

[0032] A second lead screw 504 is provided between the two second guide rails 501. The second lead screw 504 is rotatably connected to the vertical beam 4 through the second lead screw support block 503. A second nut seat 505 is threadedly connected to the second lead screw 504. The second nut seat 505 is fixedly connected to the rotary drive mechanism 6.

[0033] A fourth motor 506 is installed on the vertical beam 4. The output end of the fourth motor 506 is connected to the second lead screw 504 for transmission, so as to facilitate the drive of the rotary drive mechanism 6 to move along the length of the vertical beam 4, and then drive the wire cutting mechanism 7 to move in the Z-axis direction.

[0034] The rotary drive mechanism 6 includes a mounting bracket 601, which is fixedly connected to the second slider 502 of the second drive device 5. A bearing mounting plate 602 is fixedly connected to the side of the mounting bracket 601 near the wire cutting mechanism 7. A bearing fixing plate 603 is rotatably connected to the side of the bearing mounting plate 602 near the wire cutting mechanism 7 via a second slewing bearing 604. The bearing mounting plate 602 is fixedly connected to the inner ring of the second slewing bearing 604, and the bearing fixing plate 603 is fixedly connected to the outer ring of the second slewing bearing 604. A crossbeam adapter plate 605 is fixedly connected to the side of the bearing fixing plate 603 near the wire cutting mechanism 7.

[0035] A second reducer 606 and a second motor 607 are mounted on the bearing mounting plate 602. The output end of the second motor 607 is connected to the input end of the second reducer 606. The output end of the second reducer 606 is connected to the adapter flange 608. The crossbeam adapter plate 605 is fixedly connected to the adapter flange 608.

[0036] This design facilitates the second motor 607 to drive the wire cutting mechanism 7 to rotate on the XZ plane, thereby enabling multi-angle cutting of the foam block 8.

[0037] The second lead screw 504 is equipped with a first cylinder 507 on both sides. The first cylinder 507 is fixedly installed on the mounting bracket 601, and the telescopic rod of the first cylinder 507 is fixedly connected to the base plate of the vertical beam 4.

[0038] With this design, the first cylinder 507 plays a balancing role when the rotary drive mechanism 6 and the wire cutting mechanism 7 move up and down, avoiding vibration when the wire cutting mechanism 7 is working, and also providing effective protection for the fourth motor 506.

[0039] The wire cutting mechanism 7 includes a crossbeam 701. A crossbeam fixing plate 702 is fixedly connected to the side of the crossbeam 701 near the rotary drive mechanism 6. The crossbeam fixing plate 702 is fixedly connected to the crossbeam adapter plate 605. Tensioning wheel bracket 703 and driving wheel bracket 704 are fixedly connected to both ends of the crossbeam 701, respectively. A transmission device 705 is provided at the end of the tensioning wheel bracket 703 and the driving wheel bracket 704 near the rotary worktable 2. A tensioning device 706 and a wire driving device 707 are provided at the end of the tensioning wheel bracket 703 and the driving wheel bracket 704 away from the rotary worktable 2, respectively. A cutting wire 708 is wound on the tensioning device 706, the wire driving device 707 and the two transmission devices 705.

[0040] This design allows for the cutting of foam blocks 8 using cutting wire 708, resulting in a smoother and more aesthetically pleasing finished product surface. Unlike traditional processing equipment, it avoids creating cutting marks on the surface of irregularly shaped foam blocks 9, which could affect the installation of the wind turbine blades.

[0041] Cutting wire 708 is an existing technology.

[0042] The transmission device 705 includes a transmission wheel 7051, which is rotatably connected to the tension wheel bracket 703 or the drive wheel bracket 704 via a first rotating shaft assembly.

[0043] The first rotating shaft assembly includes a mounting shaft 7052, which is fixedly connected to a tension wheel bracket 703 or a drive wheel bracket 704. The mounting shaft 7052 is rotatably connected to a bearing seat 7053 via a bearing assembly 7054, and the transmission wheel 7051 is fixedly connected to the bearing seat 7053.

[0044] A lock nut 7055 is threaded onto the mounting shaft 7052 to define the axial position of the bearing assembly 7054.

[0045] The bearing assembly 7054 includes two bearings with a spacer between them.

[0046] A bearing cover 7056 is fixedly attached to the bearing housing 7053, thereby preventing dust from entering the bearing and affecting its service life.

[0047] The tensioning device 706 includes a sliding plate 7063, which is located below the tensioning wheel bracket 703. The sliding plate 7063 is slidably connected to the tensioning wheel bracket 703 through two sliding components.

[0048] The sliding assembly includes a guide rail and a slider. The guide rail is fixedly connected to the tension wheel bracket 703, the slider is fixedly connected to the sliding plate 7063, and the slider is slidably connected to the guide rail.

[0049] The side of the sliding plate 7063 away from the tension wheel bracket 703 is rotatably connected to the tension wheel 7061 via the second rotating shaft assembly 7064.

[0050] The second rotating shaft assembly 7064 has the same structure as the first rotating shaft assembly.

[0051] A second cylinder 7065 is installed on the tension wheel bracket 703, and the extension rod of the second cylinder 7065 is fixedly connected to the sliding plate 7063.

[0052] With this design, when the telescopic rod of the second cylinder 7065 retracts, it drives the tensioning wheel 7061 to approach its corresponding transmission wheel 7051, thereby facilitating the installation of the cutting wire 708; when the telescopic rod of the second cylinder 7065 extends, it drives the tensioning wheel 7061 to move away from its corresponding transmission wheel 7051, thereby facilitating the tensioning of the cutting wire 708, and thus facilitating the cutting of the foam block 8.

[0053] The wire drive device 707 includes a fifth motor 7073, which is fixedly mounted on the drive wheel bracket 704. The output end of the fifth motor 7073 is connected to the drive wheel 7071 through the connecting sleeve 7072.

[0054] The drive wheel 7071, tension wheel 7061 and two drive wheels 7051 are located on the same plane, and the cutting wire is wound on the drive wheel 7071, tension wheel 7061 and two drive wheels 7051.

[0055] During operation, the equipment is first reset to zero, at which point the cutting wire 708 is in a horizontal position. Then, the foam block 8 is fixed on the rotary table 2. The rotary table 2 drives the foam block 8 to rotate, so that the end face of the foam block 8 rotates to be below and parallel to the cutting wire 708. Then, the fifth motor 7073 drives the cutting wire 708 to move, and the second drive device 5 drives the wire cutting mechanism 7 to move downward to complete the cutting of the end face of the irregular foam block 9. Then, the cutting wire 708 is moved away from the foam block 8, and the rotary table 2 drives the foam block 8 to rotate 180°. The first drive device 3 drives the other end face of the irregular foam block 9 to move below the cutting wire 708, and the second drive device 5 drives the wire cutting mechanism 7 to move downward to complete the cutting of the other end face of the irregular foam block 9, thereby ensuring that the two end faces of the irregular foam block 9 are parallel.

[0056] Move the cutting wire 708 away from the foam block 8, rotate the worktable 2 to drive the foam block 8 to rotate 90°, and then rotate the drive mechanism 6 to drive the wire cutting mechanism 7 to rotate a certain angle, so that the cutting wire 708 is set at an angle on the XZ plane. The first drive device 3 drives the wire cutting mechanism 7 to operate, completing the cutting of the top surface of the irregular foam block 9. The drive mechanism 6 drives the wire cutting mechanism 7 to return to the horizontal position. The worktable 2 drives the foam block 8 to rotate a certain angle, and then the first drive device 3 and the second drive device 5 work together to drive the wire cutting mechanism 7 to operate, completing the cutting of the side surface of the irregular foam block 9. Then, the cutting of the bottom surface and the other side surface of the irregular foam block 9 is completed in sequence, realizing the cutting processing of the irregular foam block 9.

[0057] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A wire cutting mechanism for a multi-axis wire cutting machine, comprising a crossbeam (701), characterized in that: The two ends of the crossbeam (701) are respectively fixed with a tension wheel bracket (703) and a drive wheel bracket (704). One end of the tension wheel bracket (703) and the drive wheel bracket (704) is provided with a transmission device (705). The other end of the tension wheel bracket (703) and the drive wheel bracket (704) is respectively provided with a tensioning device (706) and a wire drive device (707). Cutting wire (708) is wound on the tensioning device (706), the wire drive device (707) and the two transmission devices (705).

2. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 1, characterized in that: The transmission device (705) includes a transmission wheel (7051), which is rotatably connected to the tension wheel bracket (703) or the drive wheel bracket (704) via a first rotating shaft assembly.

3. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 2, characterized in that: The first rotating shaft assembly includes a mounting shaft (7052), which is fixedly connected to a tension wheel bracket (703) or a drive wheel bracket (704). The mounting shaft (7052) is rotatably connected to a bearing seat (7053) via a bearing assembly (7054), and the transmission wheel (7051) is fixedly connected to the bearing seat (7053).

4. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 3, characterized in that: The mounting shaft (7052) is threaded with a lock nut (7055) for defining the axial position of the bearing assembly (7054).

5. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 4, characterized in that: A bearing cap (7056) is fixedly attached to the bearing housing (7053).

6. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 5, characterized in that: The tensioning device (706) includes a sliding plate (7063), which is located below and slidably connected to the tensioning wheel bracket (703). The side of the sliding plate (7063) away from the tensioning wheel bracket (703) is rotatably connected to the tensioning wheel (7061) via a second rotating shaft assembly (7064).

7. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 6, characterized in that: A second cylinder (7065) is installed on the tension wheel bracket (703), and the telescopic rod of the second cylinder (7065) is fixedly connected to the sliding plate (7063).

8. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 7, characterized in that: The wire drive device (707) includes a fifth motor (7073), which is fixedly mounted on the drive wheel bracket (704). The output end of the fifth motor (7073) is connected to the drive wheel (7071) through the connecting sleeve (7072).

9. The wire cutting mechanism of a multi-axis wire cutting machine according to claim 8, characterized in that: The drive wheel (7071), tension wheel (7061) and two drive wheels (7051) are located on the same plane, and the cutting wire is wound on the drive wheel (7071), tension wheel (7061) and two drive wheels (7051).

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