A wing composite material cutting forming device of a drone

Abstract

The utility model discloses an unmanned plane wing composite material cutting forming device belongs to cutting forming device technical field, including work table, the surface one side fixed mounting of work table top has vacuum adsorption platform, and the surface other side mounting of work table top has forming die subassembly, be provided with the moving frame of striding vacuum adsorption platform and forming die subassembly top on work table, install the translation drive mechanism of drive moving frame along X axle direction movement on work table, install the slider of along Y axle direction movement on moving frame, the bottom fixed connection of slider has mounting bracket, install at least two electric telescopic handle in mounting bracket, and one electric telescopic handle's output fixed connection has cutting head, the utility model provides an unmanned plane wing composite material cutting forming device that will precision cutting, automatic transport and mould pressing forming function integration in an organic whole.

Description

Technical Field

[0001] This utility model relates to the field of cutting and forming equipment technology, and in particular to a cutting and forming equipment for composite materials of drone wings. Background Technology

[0002] With the rapid development of drone technology, the requirements for wing materials in terms of strength and lightweight are constantly increasing. Composite materials have become a widely used choice due to their excellent mechanical properties. However, in the current processing and manufacturing of composite materials for drone wings, existing production equipment and processes still have certain limitations.

[0003] Composite materials are usually in the form of flexible sheets. Traditional cutting equipment usually uses mechanical clamps to press the edges to fix the material. However, the material itself is ductile, and during the cutting process, the drag force of the tool can easily cause displacement, wrinkling or stretching deformation in the central area of ​​the material. This not only significantly reduces the cutting accuracy of the wing profile, but also increases the scrap rate of subsequent products.

[0004] Existing production processes typically separate cutting and molding into two independent workstations or equipment. After cutting the sheet material, workers need to manually transport it to the molding equipment for mold closing and curing. This separate operation not only requires more equipment space, but also easily leads to sheet material contamination or secondary deformation during the handling process, while increasing labor costs. It cannot meet the requirements of drone manufacturing for automated, efficient mass production.

[0005] In traditional molding equipment, the lower mold and the upper mold are usually fixed on the same vertical axis. There are safety risks when manually placing the sheet material, and it is difficult to ensure the precise positioning of the sheet material in the mold cavity, which affects the quality of the final product. Utility Model Content

[0006] The purpose of this invention is to provide a cutting and molding device for drone wing composite materials that integrates precision cutting, automatic conveying and molding functions.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a cutting and forming device for composite materials of UAV wings, including a worktable, a vacuum adsorption table fixedly installed on one side of the top surface of the worktable, and a forming mold assembly installed on the other side of the top surface of the worktable; The worktable is provided with a movable frame that spans above the vacuum adsorption stage and the molding die assembly. The worktable is equipped with a translation drive mechanism that drives the movable frame to move along the X-axis. A slider that moves along the Y-axis is installed on the movable frame. A mounting bracket is fixedly connected to the bottom of the slider. The mounting frame is equipped with at least two electric telescopic rods, one of which has a cutting head fixedly connected to its output end, and the other has a vacuum suction cup fixedly connected to its output end. The molding die assembly includes a lower die and an upper die. The cutting head is used to cut the material fixed on the vacuum adsorption stage, and the vacuum suction cup is used to pick up the cut material and transport it into the lower die.

[0008] As a further description of the above technical solution: the translation drive mechanism includes two U-shaped brackets fixedly connected to both sides of the top of the worktable, and the top inner sides of the two U-shaped brackets are respectively rotatably connected to a first lead screw and fixedly connected to a slide rod; One end of the movable frame is threaded to the first lead screw, and the other end is slidably sleeved on the slide rod; A rotary motor is fixedly installed on the outer wall of one of the U-shaped brackets, and the output shaft of the rotary motor passes through the side wall of the U-shaped bracket and is fixedly connected to one end of the first lead screw.

[0009] As a further description of the above technical solution: the top of the movable frame is horizontally rotatably connected to a second lead screw, and the extension direction of the second lead screw is perpendicular to the moving direction of the movable frame; A drive motor is fixedly installed at one end of the movable frame, and the output end of the drive motor is fixedly connected to one end of the second lead screw. The slider is sleeved on the second lead screw and threadedly engaged with the second lead screw. The moving frame has a groove along its length for the bottom of the slider to pass through.

[0010] As a further description of the above technical solution: the molding die assembly also includes a circular through hole opened on the worktable, a rotating plate is rotatably fitted inside the circular through hole, and a rectangular groove is eccentrically opened on the rotating plate; An adjustment motor is fixedly installed at the bottom of the workbench, and the output end of the adjustment motor is fixedly connected to the center position of the bottom of the rotating plate.

[0011] As a further description of the above technical solution: the bottom wall of the rectangular groove is provided with a circular hole, a lifting plate is slidably fitted inside the rectangular groove, and the lower mold is fixedly installed on the top of the lifting plate; A hydraulic cylinder is installed on the ground below the workbench at the position corresponding to the rectangular groove. The telescopic end of the hydraulic cylinder passes vertically upward through the circular hole and abuts against the bottom of the lifting plate, and is used to drive the lifting plate and the lower mold to rise and fall.

[0012] As a further description of the above technical solution: an L-shaped plate is fixedly installed on the top of the workbench, and the upper mold is fixedly installed at the bottom of one end of the L-shaped plate; The upper mold is located above the rotating plate, and the upper mold and the lower mold are positioned corresponding to each other.

[0013] As a further description of the above technical solution: the electric telescopic rod is vertically fixed inside the mounting frame, the cutting head and the vacuum suction cup are arranged side by side, and the height of the vacuum suction cup is independently adjustable by the corresponding electric telescopic rod.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: 1. The cutting and molding functions are integrated into the same workbench. With the synergistic effect of the moving frame, mounting frame, and the parallel cutting head and vacuum suction cup, after the sheet is cut, the vacuum suction cup can directly grab the sheet and accurately place it into the lower mold without manual intervention. This compact integrated design not only optimizes the operation process and significantly shortens the material flow time, but also improves production efficiency and effectively reduces the equipment footprint.

[0015] 2. The design of the rotating plate driven by the motor enables the lower mold to switch between the blanking position and the mold closing and forming position. During the filling stage, the lower mold is in an open state, which facilitates the accurate placement of the cut sheet by the vacuum suction cup. After the rotating plate switches to the forming position, the hydraulic cylinder drives the lifting plate to rise vertically, so that the lower mold and the fixed upper mold can be accurately closed. This design not only avoids spatial interference between the hydraulic mechanism and the cutting mechanism, but also facilitates the operation of removing the finished product, further improving the stability and safety of the equipment operation. Attached Figure Description

[0016] Figure 1 A front view of the present invention is shown; Figure 2 This utility model is shown Figure 1 Enlarged view of point A in the middle; Figure 3 This utility model is shown Figure 1 Enlarged view of point B in the middle; Figure 4 A perspective view of the present invention is shown.

[0017] Legend: 10. Workbench; 11. Vacuum suction table; 12. U-shaped support; 13. First lead screw; 14. Slide rod; 15. Rotary motor; 16. Moving frame; 17. Second lead screw; 18. Drive motor; 19. Slider; 20. Mounting frame; 21. Electric telescopic rod; 22. Cutting head; 23. Lifting plate; 24. Hydraulic cylinder; 25. L-shaped plate; 26. Lower mold; 27. Upper mold; 28. Vacuum suction cup; 29. ​​Adjusting motor; 30. Rotating plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-4 This utility model provides a technical solution: a cutting and forming device for composite materials of drone wings, including a worktable 10, which serves as the supporting base of the overall equipment. A vacuum adsorption platform 11 for fixing composite materials is installed on one side of the top of the worktable 10, and a forming mold assembly is installed on the other side.

[0020] The vacuum adsorption stage 11 uses negative pressure to flatten and fix the flexible composite material to be cut onto the worktable 10, effectively preventing material displacement or wrinkling during the cutting process.

[0021] This device uses a vacuum adsorption stage 11 to fix the flexible composite material flat and firmly on the stage surface using negative pressure. Compared with traditional mechanical clamps, it effectively avoids material displacement, wrinkling or stretching deformation during the cutting process, thereby significantly improving the contour cutting accuracy of composite material sheets and the product qualification rate.

[0022] The worktable 10 is provided with a movable frame 16 that spans above the vacuum adsorption stage 11 and the molding die assembly. The worktable 10 is equipped with a translation drive mechanism that drives the movable frame 16 to move along the X-axis. The translation drive mechanism includes two U-shaped brackets 12 that are fixedly connected to both sides of the top of the worktable 10. Specifically, on both sides of the vacuum adsorption stage 11, U-shaped brackets 12 that are fixedly connected to the top wall of the worktable 10 are symmetrically installed. On the top of the two U-shaped brackets 12, a first lead screw 13 and a slide bar 14 that can rotate are respectively installed.

[0023] To achieve the driving function, a rotary motor 15 is installed on the outside of one of the U-shaped brackets 12. The output shaft of the rotary motor 15 passes through the side wall of the U-shaped bracket 12 and is fixedly connected to one end of the first lead screw 13, thereby driving the rotation of the first lead screw 13.

[0024] The device also includes a movable frame 16 spanning above the vacuum adsorption stage 11. The two ends of the movable frame 16 are respectively sleeved on the first lead screw 13 and the slide rod 14. Specifically, one end of the movable frame 16 is connected to the first lead screw 13 through an internal nut structure, and the other end is connected to the slide rod 14 through a sliding sleeve structure.

[0025] When the rotary motor 15 is running, it drives the first lead screw 13 to rotate, thereby driving the moving frame 16 to achieve reciprocating linear motion along the first lead screw 13 in the X-axis direction.

[0026] A second lead screw 17 is horizontally arranged at the top of the movable frame 16. The second lead screw 17 extends in a direction perpendicular to the first lead screw 13, i.e., the Y-axis direction.

[0027] A drive motor 18 is installed at one end of the movable frame 16. The output end of the drive motor 18 is fixedly connected to the second lead screw 17. A slider 19 is provided on the outside of the second lead screw 17. The slider 19 has a threaded hole that mates with the second lead screw 17.

[0028] The movable frame 16 has a sliding hole along its length for moving the slider 19. The bottom of the slider 19 passes through the sliding hole and is fixedly connected to the mounting frame 20.

[0029] The mounting frame 20 is located below the movable frame 16. At least two electric telescopic rods 21 are vertically fixedly installed inside it. The output end of one of the electric telescopic rods 21 passes through the bottom of the mounting frame 20 and is fixedly connected to the cutting head 22. By extending and retracting the electric telescopic rod 21, the cutting head 22 can be adjusted in the Z-axis direction, thereby realizing the feed and retraction operations.

[0030] Another electric telescopic rod 21 has its output end fixedly connected to a vacuum suction cup 28 at the bottom of the mounting frame 20. The vacuum suction cup 28 is used to transport the cut wing to the forming mold assembly. The power source of the vacuum suction cup 28 comes from an external electric pump or vacuum generator. The electric pump is powered directly by an electric motor, while the vacuum generator uses compressed air to create a vacuum.

[0031] Through the coordinated operation of the rotary motor 15 driving the first lead screw 13, the drive motor 18 driving the second lead screw 17, and the electric telescopic rod 21, the cutting head 22 and the vacuum suction cup 28 can move precisely in three-dimensional space. This structure can not only meet the cutting requirements of complex wing planar contours, but also use the electric telescopic rod 21 to precisely control the cutting depth, thus achieving automated and efficient operation.

[0032] On the other side of the surface of the workbench 10, a forming mold assembly is installed. The workbench 10 has a circular hole, and a rotating plate 30 rotates inside the circular hole.

[0033] An adjustment motor 29 is installed at the bottom of the workbench 10. The output end of the adjustment motor 29 is fixed to the center of the bottom of the rotating plate 30 and is used to drive the rotating plate 30 to rotate. The rotating plate 30 is eccentrically provided with a rectangular groove, in which a lifting plate 23 is placed. A hydraulic cylinder 24 is placed on the ground at the bottom of the workbench 10. The bottom wall of the inner cavity of the rectangular groove is provided with a round hole. The extension end of the hydraulic cylinder 24 passes through the round hole and contacts the lifting plate 23. The hydraulic cylinder 24 is used to provide vertical upward lifting force.

[0034] To ensure the mold closing accuracy, the lower mold 26 is fixedly installed on the top of the lifting plate 23, and an L-shaped plate 25 is installed on the top of the worktable 10. The upper mold 27 is fixed on the L-shaped plate 25. The position of the upper mold 27 is relatively stable. The surface structure of the lower mold 26 and the upper mold 27 matches the design shape of the UAV wing to meet production requirements.

[0035] This device is equipped with a central controller, typically a programmable logic controller or an industrial personal computer, which serves as the core control unit of the system. This central controller connects to and manages the following functional components: motor driver, electric telescopic rod controller, hydraulic cylinder control unit, rotary plate position sensor, hydraulic cylinder displacement sensor, and vacuum control module.

[0036] Specifically, the motor driver controls and drives the rotary motor 15, drive motor 18, and regulating motor 29; the electric telescopic rod controller is responsible for precisely controlling the extension and retraction stroke of the electric telescopic rod 21 connecting the cutting head 22 and the vacuum suction cup 28; the hydraulic cylinder control unit consists of a proportional valve or a servo valve, used to precisely regulate the extension and retraction speed, end position, and stable pressure required to maintain mold closure of the hydraulic cylinder 24; the rotary plate position sensor is installed on the output shaft of the regulating motor 29 or the edge of the rotary plate 30, used to detect and provide feedback on the precise rotation angle of the rotary plate 30 in real time; the hydraulic cylinder displacement sensor is used to monitor the extension and retraction displacement of the hydraulic cylinder 24 in real time, ensuring that the rising position of the lower mold 26 is precisely closed with the upper mold 27; the vacuum control module is used to control the vacuum state of the vacuum adsorption stage 11 and the vacuum suction cup 28, and to precisely adjust their opening and closing.

[0037] Control principle: The central controller sends pulse commands to the drivers of the rotary motor 15 and the drive motor 18 according to the preset cutting path or the coordinates of the suction and placement points. The drivers realize the rotational movement through the drive motors, and further transmit the linear motion precisely to the cutting head 22 and the vacuum suction cup 28 through the first lead screw 13 and the second lead screw 17. At the same time, the controller completes the cutting head 22's advance and retraction operations and the vacuum suction cup 28's lifting and lowering operations by adjusting the extension and retraction stroke of the electric telescopic rod 21. The precise stroke of the electric telescopic rod 21 is monitored in real time by built-in or external sensors, and the feedback information is transmitted to the controller.

[0038] The central controller controls the adjustment motor 29 to drive the rotating plate 30 to rotate. The high-precision sensor installed on the rotating plate 30 feeds back the real-time angle position to the central controller. When the feedback angle reaches the preset molding station angle, that is, when the lower mold 26 is completely below the upper mold 27 and the central axis is aligned, the controller immediately stops the output of the adjustment motor 29 and locks or brakes it to ensure that the lower mold 26 does not shift its position during the molding process. Since the molding process requires extremely high alignment accuracy, this step must use a high-resolution encoder and servo motor, and be used in conjunction with mechanical positioning pins for auxiliary positioning.

[0039] The central controller controls the adjustment motor 29 to drive the rotating plate 30 to move. The high-precision sensor installed on the rotating plate 30 feeds back the angle and position information to the central controller in real time. When the feedback angle reaches the preset molding station angle, that is, when the lower mold 26 is accurately positioned directly below the upper mold 27 and the central axis is completely aligned, the central controller immediately stops the output of the adjustment motor 29 and activates the locking or braking mechanism to ensure that the lower mold 26 remains stable in position during the molding process and does not shift. Due to the extremely high requirements for alignment accuracy in molding, this step requires the use of a high-resolution encoder and servo motor, combined with mechanical positioning pins to assist in achieving precise positioning.

[0040] The central controller precisely adjusts the hydraulic oil flow through a proportional servo valve to ensure the smooth extension of the hydraulic cylinder 24, driving the lower mold 26 to rise slowly. The system uses a hydraulic cylinder displacement sensor to monitor the position of the lower mold 26 in real time. When the surface of the lower mold 26 approaches the surface of the upper mold 27, the system automatically reduces its operating speed and stops precisely at the preset closing position fed back by the displacement sensor, completing the closing operation of the upper and lower molds. After the molds are closed, the central controller adjusts the hydraulic system pressure through a servo valve to apply a preset molding pressure to the composite material. This pressure is monitored in real time by a pressure sensor, and the system maintains the pressure stable through a proportional servo valve until the pressure holding time ends. After the pressure holding is completed, the central controller controls the servo valve to reverse its action, the hydraulic cylinder 24 retracts smoothly, and the lower mold 26 descends, realizing the unloading process.

[0041] Work steps: First, lay the composite material of the drone wing to be processed flat on the vacuum adsorption table 11, and start the vacuum adsorption table 11 to firmly fix the material on the table surface.

[0042] According to the preset cutting path, the rotary motor 15 drives the first lead screw 13 to rotate, which in turn moves the moving frame 16 along the X-axis; at the same time, the drive motor 18 drives the second lead screw 17 to rotate, which in turn moves the slider 19 and the mounting frame 20 along the Y-axis.

[0043] Once the cutting head 22 moves above the designated position, the electric telescopic rod 21 is extended, causing the cutting head 22 to move down to contact the material and perform cutting. Through the coordinated movement of the X, Y, and Z axes, precise cutting of the planar contour of the composite material is achieved.

[0044] After cutting, the cutting head 22 rises, and the vacuum suction cup 28 descends to pick up the cut sheet and place it into the cavity of the lower mold 26. The rotating plate 30 is then rotated by the motor 29, causing the lower mold 26 to rotate below the upper mold 27. Figure 1 and Figure 3 As shown.

[0045] The hydraulic cylinder 24 is activated to drive the lifting plate 23 and the lower mold 26 to move vertically upward. The lower mold 26 rises to close with the fixed upper mold 27, aligns with the composite material inside the mold and applies pressure (if required by the process, a mold heating system can be configured to perform hot pressing curing, which is not shown in the figure).

[0046] After maintaining pressure for a certain period of time, the material is cured and formed. Then, the hydraulic cylinder 24 is controlled to retract, which drives the lower mold 26 to descend and restore it, and the formed drone wing semi-finished product is taken out, completing one complete work cycle.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting and forming device for composite material of UAV wings, comprising a worktable (10), characterized in that: A vacuum adsorption stage (11) is fixedly installed on one side of the top surface of the workbench (10), and a molding die assembly is installed on the other side of the top surface of the workbench (10). The worktable (10) is provided with a movable frame (16) that spans the vacuum adsorption stage (11) and the molding die assembly. The worktable (10) is equipped with a translation drive mechanism that drives the movable frame (16) to move along the X-axis. The movable frame (16) is equipped with a slider (19) that moves along the Y-axis. The bottom of the slider (19) is fixedly connected to a mounting bracket (20). The mounting bracket (20) is equipped with at least two electric telescopic rods (21), one of which has a cutting head (22) fixedly connected to its output end, and the other has a vacuum suction cup (28) fixedly connected to its output end. The molding die assembly includes a lower die (26) and an upper die (27). The cutting head (22) is used to cut the material fixed on the vacuum adsorption table (11). The vacuum suction cup (28) is used to pick up the cut material and transport it into the lower die (26).

2. The UAV wing composite material cutting and forming device according to claim 1, characterized in that: The translation drive mechanism includes two U-shaped brackets (12) fixedly connected to the top sides of the workbench (10), and the top inner sides of the two U-shaped brackets (12) are respectively rotatably connected to a first lead screw (13) and fixedly connected to a slide rod (14). One end of the movable frame (16) is threaded to the first lead screw (13), and the other end is slidably sleeved on the slide rod (14); A rotary motor (15) is fixedly installed on the outer wall of one of the U-shaped brackets (12). The output shaft of the rotary motor (15) passes through the side wall of the U-shaped bracket (12) and is fixedly connected to one end of the first lead screw (13).

3. The UAV wing composite material cutting and forming device according to claim 1, characterized in that: The top of the movable frame (16) is rotatably connected to a second lead screw (17), and the extension direction of the second lead screw (17) is perpendicular to the moving direction of the movable frame (16). A drive motor (18) is fixedly installed at one end of the movable frame (16), and the output end of the drive motor (18) is fixedly connected to one end of the second lead screw (17). The slider (19) is sleeved on the second lead screw (17) and threadedly engaged with the second lead screw (17). The moving frame (16) has a groove along its length for the bottom of the slider (19) to pass through.

4. The UAV wing composite material cutting and forming device according to claim 1, characterized in that: The molding die assembly also includes a circular through hole opened on the workbench (10), and a rotating plate (30) is rotatably fitted inside the circular through hole. A rectangular groove is eccentrically opened on the rotating plate (30). An adjustment motor (29) is fixedly installed at the bottom of the workbench (10), and the output end of the adjustment motor (29) is fixedly connected to the center position of the bottom of the rotating plate (30).

5. The UAV wing composite material cutting and forming device according to claim 4, characterized in that: The bottom wall of the rectangular groove is provided with a round hole, and a lifting plate (23) is slidably fitted inside the rectangular groove. The lower mold (26) is fixedly installed on the top of the lifting plate (23). A hydraulic cylinder (24) is provided on the ground below the workbench (10) at the position corresponding to the rectangular groove. The telescopic end of the hydraulic cylinder (24) passes vertically upward through the circular hole and abuts against the bottom of the lifting plate (23), which is used to drive the lifting plate (23) and the lower mold (26) to rise and fall.

6. The UAV wing composite material cutting and forming device according to claim 5, characterized in that: An L-shaped plate (25) is fixedly installed on the top of the workbench (10), and the upper mold (27) is fixedly installed at the bottom of one end of the L-shaped plate (25); The upper mold (27) is located above the rotating plate (30), and the upper mold (27) and the lower mold (26) are positioned corresponding to each other.

7. The UAV wing composite material cutting and forming device according to claim 1, characterized in that: The electric telescopic rod (21) is vertically fixed inside the mounting frame (20). The cutting head (22) and the vacuum suction cup (28) are arranged side by side. The height of the vacuum suction cup (28) is independently adjusted by the corresponding electric telescopic rod (21).

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