Ultrasonic cutting device for bevel angle of composite material preform

Abstract

The utility model discloses an ultrasonic cutting device, belongs to the technical field of composite material structure manufacturing, and particularly relates to an ultrasonic cutting device for a bevel angle of a composite material preformed body, which comprises a preformed body adsorption processing platform, a guide rail type three-dimensional control mechanical arm, a control host and an ultrasonic cutting unit, the device has the advantages of being high in space utilization rate, low in cost, high in space adaptability and the like, and the problems that automatic tape laying equipment is low in ultrasonic cutting function efficiency, and special ultrasonic cutting equipment is high in cost, low in cutting adaptability and utilization rate and the like are solved. The control host is adopted to control the motion trail of the ultrasonic cutting tool bit at the tail end of the three-dimensional industrial mechanical arm, the automatic repeated machining precision is high, and the problems that manual cutting is poor in quality stability, low in production efficiency and the like are solved; and moreover, the difficulty and the cost of the cutting process are reduced, and the automatic bevel angle cutting efficiency and the stability of the composite material prefabricated body are greatly improved.

Description

Technical Field

[0001] The utility model discloses an ultrasonic cutting device, belongs to the technical field of composite material structure manufacturing, and particularly relates to an ultrasonic cutting device for bevel-angled composite material preforms. Background Art

[0002] With the increasing prevalence of composite materials in aerospace applications, stiffened panel structures are becoming increasingly common. Ribs, also known as stringers, serve as longitudinal members of the panel, supporting axial forces caused by bending and transferring external stresses to primary load-bearing components such as the lattice and beams, effectively increasing the critical stresses in the skin's compression and shear instability. Ribs are also slender and are used in significant numbers, with a total length exceeding a kilometer on a commercial airliner.

[0003] The cross-sectional configurations of long trusses are mostly T-shaped, I-shaped, hat-shaped (Ω-shaped), etc. The manufacturing process is complex. The advantages of co-gluing and co-curing the clean edges of the ribs to form large-size, high-precision reinforced wall panels are obvious. The bevel processing of the rib edges is the core process, but it is difficult, and high-quality rib edges have high cutting requirements.

[0004] At present, the domestic laying of prepreg for composite long stringers is mostly done by manual laying and automatic tape laying. The edges need to be trimmed after laying, and manual work requires special fixtures, resulting in poor quality stability and low production efficiency. The automatic tape laying method has a low efficiency of ultrasonic cutting function, which occupies the efficiency of the main laying function of the equipment and can only cut straight edges. Special ultrasonic cutting equipment is expensive, and the net size bevel cutting accuracy, adaptability and utilization rate of complex configuration long stringers, especially those with variable curvature and size changes, are low, making it difficult to meet the rapid development and high efficiency needs of the aerospace field. Utility Model Content

[0005] The purpose of the utility model is to provide an ultrasonic cutting device for bevel cutting of composite material preforms, so as to solve the problems mentioned above in the existing cutting technology, such as low efficiency, high cost, poor stability and applicability.

[0006] Technical solution: An ultrasonic cutting device for bevel cutting of composite material preforms, comprising: a preform adsorption processing platform, a guide rail type three-dimensional control robot arm, a control host and an ultrasonic cutting unit;

[0007] The control host is connected to the preform adsorption processing platform, the guide rail type three-dimensional control robot arm, and the ultrasonic cutting unit through data wires to control their operation. The preform adsorption processing platform is installed on the working area, the guide rail type three-dimensional control robot arm is located on one side of the guide rail type three-dimensional control robot arm, and the ultrasonic cutting unit is installed on the guide rail type three-dimensional control robot arm. The control host controls the guide rail type three-dimensional control robot arm to drive the ultrasonic cutting unit to process the workpiece on the preform adsorption processing platform.

[0008] Furthermore, the control host is linked to the six-axis industrial robot arm and the ultrasonic cutting unit, including a universal program control system and a PLC joint control system; the guide rail type three-dimensional control robot arm mainly executes the program control system command, controls the six-axis industrial robot arm to run on the guide rail, and controls the spatial running trajectory of the ultrasonic cutting head; the preform adsorption processing platform is mainly composed of a modular combination platform, a vacuum adsorption system and a lifting guide rail device, which adsorbs and positions the composite material preform; the ultrasonic cutting unit is mainly arranged at the end of the six-axis industrial robot arm to perform the cutting action process

[0009] In a further embodiment, the preform adsorption processing platform is composed of a modular combination platform; each adsorption processing platform is provided with a vacuum adsorption system and a lifting guide rail device, the platform can be modularly assembled according to size requirements, vacuum adsorption holes are arranged on each module, and the height of each module platform can be individually controlled to meet the coordination and fixation of parts such as long trusses with different structural properties.

[0010] In a further embodiment, the vacuum adsorption system comprises: a vacuum adsorption hole, a vacuum thin cavity, a vacuum extraction port, a conduit, a vacuum filter, a solenoid valve and a vacuum pump;

[0011] The vacuum thin cavity is formed by the bottom of the adsorption processing platform. A number of vacuum adsorption holes are provided, which are formed by the top of the adsorption processing platform downwardly connected to the vacuum thin cavity. The vacuum extraction port is located on one side of the adsorption processing platform and is connected to the vacuum thin cavity. One end of the vacuum filter is connected to the vacuum extraction port through the conduit, and the other end is connected to one end of the solenoid valve through the conduit. The other end of the solenoid valve is connected to the vacuum pump through the conduit.

[0012] Furthermore, a matrix of vacuum adsorption holes is arranged on the adsorption processing platform. The outer holes of the vacuum adsorption holes are used to adsorb composite material preforms, and the inner holes are connected to the vacuum thin cavity of the platform. The vacuum thin cavity is arranged at the lower part of the platform. Each module platform is provided with a vacuum extraction port, which is connected to a conduit. The conduit is connected to a vacuum filter, a solenoid valve, and a vacuum pump. The solenoid valve is connected to a PLC control system. The vacuum adsorption action is controlled by a human-computer interaction interface, and the vacuum pump is started in advance before work.

[0013] In a further embodiment, the lifting guide rail device includes: an adsorption platform lifting thread structure, a thread sleeve, a thread guide column and a first servo motor;

[0014] The adsorption platform lifting thread structure is fixedly installed on one end of the adsorption processing platform, the threaded sleeve is fixedly installed on the adsorption platform lifting thread structure, the threaded guide column is screwed to the threaded sleeve, and the rotating shaft of the first servo motor is connected to one end of the threaded guide column.

[0015] Furthermore, each module platform is connected by a set of servo motors and toothed pulleys. The lifting thread toothed pulley structure controls the thread rotation axis by the servo motor shaft. The thread sleeve is assembled on the module platform, and the servo motor is connected to the PLC control system, and the height control is input by the human-computer interaction interface.

[0016] In a further embodiment, the guide rail type three-dimensional control robotic arm includes: a robotic arm guide rail, a six-axis industrial robotic arm, a second servo motor, and a robotic arm base; the robotic arm guide rails are provided in plurality and are spliced ​​together, the robotic arm base is slidably installed on the robotic arm guide rail, and the second servo motor is installed on the robotic arm base to control the movement of the robotic arm base on the robotic arm guide rail; the six-axis industrial robotic arm is fixedly installed on the robotic arm base.

[0017] Furthermore, the robotic arm base of the six-axis industrial robotic arm cooperates with the robotic arm guide rail, and the free rotating axis includes main structures such as servo motor, reducer, synchronous pulley, etc., which are also controlled by the program to achieve the six free movements of the end and their spatial speed and position accuracy.

[0018] Furthermore, the robot arm guide rail is mainly a one-dimensional linear structure, which can be modularly assembled, and the length can be configured according to the actual length of the part, and is stably arranged on the side of the preform adsorption processing platform;

[0019] In a further embodiment, the ultrasonic cutting unit comprises: an ultrasonic cutting head, an ultrasonic generator, an ultrasonic transducer, an ultrasonic amplitude modulator, an ultrasonic cutter and a power supply wire;

[0020] The ultrasonic generator is installed on the guide rail type three-dimensional control robot arm and is connected to the ultrasonic transducer through a power supply wire. The ultrasonic transducer, the ultrasonic amplitude modulator and the ultrasonic cutter are installed in the ultrasonic cutting head; the ultrasonic cutter is located at the bottom of the ultrasonic cutting head and extends to the outside. The ultrasonic amplitude modulator and the ultrasonic transducer are located in the ultrasonic cutting head, and the ultrasonic amplitude modulator is connected between the ultrasonic transducer and the ultrasonic cutter.

[0021] Furthermore, the ultrasonic generator is controlled by an electrical control unit, which is controlled by a PLC system program to start and shut down the ultrasonic generator.

[0022] In a further embodiment, the control host includes a universal program control system and a PLC joint control system, which controls the entire process of the robotic arm equipment, controls the movement of the robotic arm on the guide rail, the movement trajectory of the robotic arm end, and the start and stop of the ultrasonic tool, and also controls the lifting and lowering of the adsorption platform and the vacuum adsorption command;

[0023] The universal program control system is connected to the preform adsorption processing platform and the guide rail type three-dimensional control robot arm, and the PLC joint control system is connected to the ultrasonic cutting unit.

[0024] Furthermore, the universal program control system is mainly used to control the movement of the robot arm base on the guide rail and the operation of the six-degree-of-freedom axis, wherein the movement mode of the robot arm on the guide rail is also controlled by a servo motor.

[0025] Furthermore, the PLC joint control system mainly controls the execution program of starting and shutting down the ultrasonic tool, and is uniformly connected to the universal program control system, so that the movement of the robotic arm and the action of the ultrasonic tool are unified, sequential, and digitally logically executed program commands, and the control program can be input through the human-computer interaction interface.

[0026] The utility model has the following beneficial effects:

[0027] 1. The ultrasonic cutting device for composite material preforms at bevel angles of the present invention can be modularly integrated into the main core mechanism according to the configuration and size of the long stringer reinforcement, including the preform adsorption processing platform, the guide rail-type three-dimensional control robot arm, the control host, and the ultrasonic cutting unit, to achieve the advantages of high space utilization, low cost, and strong adaptability.

[0028] 2. The ultrasonic cutting device for composite material preforms of the present invention uses a program to digitally control the motion trajectory of the ultrasonic cutting head at the end of a three-dimensional industrial robot arm, and has high precision in automated repeated processing.

[0029] 3. The ultrasonic cutting device for composite material preforms with oblique angles of the present invention is suitable for various slender parts with high efficiency and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic structural diagram of the ultrasonic cutting device of the present utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the preform bevel cutting and adsorption platform of the utility model;

[0032] Figure 3 This is a schematic diagram of the structural principle of the lifting guide rail mechanism of the utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the adsorption processing platform of the utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the ultrasonic cutting unit of the utility model;

[0035] Figure 6This is a schematic diagram of the adsorption structure of various long truss bars cut at an angle according to the utility model.

[0036] Figure 7 This is a simplified diagram of the control relationship between the various systems of the ultrasonic cutting device of this utility model.

[0037] Figure numerals: 10, Ω-shaped long stringer rib; 11, preform edge bevel; 12, rib preform edge; 20, adsorption processing platform; 21, vacuum adsorption hole; 22, adsorption platform lifting thread structure; 23, threaded sleeve; 24, threaded guide pin; 25, first servo motor; 26, vacuum thin cavity; 27, vacuum extraction port; 28, conduit; 30, robot arm guide rail; 31, guide rail module docking joint; 40, six-axis industrial robot arm; 41, control host; 42, second servo motor; 43, robot arm base; 44, data wire; 45, human-computer interaction interface; 46, vacuum filter; 47, solenoid valve; 48, vacuum pump; 50, ultrasonic cutting head; 51, ultrasonic generator; 52, ultrasonic transducer; 53, ultrasonic amplitude modulator; 54, ultrasonic tool; 55, power wire. DETAILED DESCRIPTION

[0038] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] An ultrasonic cutting device for bevel cutting of composite material preforms, such as Figures 1 to 7 As shown, the system comprises a preform adsorption processing platform 20, a guide-rail 3D control robot arm, a control host 41, and an ultrasonic cutting unit. The control relationship is primarily as follows: the program control system 41 is linked with the six-axis industrial robot arm 40 and the ultrasonic cutting unit via a data line 44. The control host includes a universal program control system and a PLC control system. The guide-rail 3D control robot arm primarily executes program control system commands, controls the six-axis industrial robot arm on the robot arm guide rail 30, and controls the spatial trajectory of the ultrasonic cutting blade 50. The preform adsorption processing platform 20, primarily composed of a modular platform, a vacuum adsorption system, and a lifting guide rail device, adsorbs and positions composite material preforms 10 that have been automatically placed or otherwise completed. The ultrasonic cutting unit is primarily located at the end of the six-axis industrial robot arm 40 and performs the cutting process.

[0042] The control host 41, comprised of a general-purpose program control system and a PLC interlocking control system, controls the entire process of the six-axis industrial robot 40, including the movement of the robot base 43 on the guide rails, the trajectory of the ultrasonic unit 50 at the end of the robot, and the activation and deactivation of the vibration of the ultrasonic tool 54. It also controls the lifting and vacuum control of the adsorption processing platform 20.

[0043] Furthermore, the universal program control system is mainly used to control the robot arm base 43 to run on the guide rail and the six-degree-of-freedom axis to operate, wherein the movement of the robot arm on the guide rail is also controlled by the second servo motor 42.

[0044] Furthermore, the PLC joint control system mainly controls the execution program of the ultrasonic start-up and shutdown of the ultrasonic tool 54, and is uniformly connected to the universal program control host 41, so that the movement of the robotic arm and the action of the ultrasonic tool 54 are unified, sequential, and digitally logically executed program commands, and the control program can be input through the human-computer interaction interface 45.

[0045] The guide rail type three-dimensional control robot arm selects the second servo motor 42 to drive the robot arm base 43 to run on the combined guide rail.

[0046] Furthermore, the six-axis industrial robot arm 40, its robot arm base 43 cooperates with the robot arm guide rail 30 to operate, and the free rotating axis includes main structures such as servo motor, reducer, synchronous pulley, etc., which are also controlled by the program to achieve the six free movements of the end and their spatial speed and position accuracy.

[0047] Furthermore, the manipulator guide rail 30 is mainly a one-dimensional linear gear structure, such as Figure 1 As shown, the robot guide rail 30 and the adsorption processing platform 20 can be modularly combined. After the modular combination, the size of the guide rail module joint 31 is less than 5 mm, and the length can be assembled according to the actual length of the preform 10 required, and stably arranged on the side of the preform adsorption processing platform 20.

[0048] The ultrasonic cutting unit mainly includes an ultrasonic cutting tool 54 , an ultrasonic generator 51 , an ultrasonic transducer 52 , an ultrasonic amplitude modulator 53 , an ultrasonic cutting head 50 , a power supply and other components, and mainly performs the cutting function of the material preform 10 .

[0049] Furthermore, the ultrasonic generator 51 is controlled by an electrical control unit, which is controlled by a PLC system program to start and shut down the ultrasonic generator.

[0050] The preform adsorption processing platform 20 is mainly composed of a modular combined platform 20, a vacuum adsorption system (vacuum adsorption hole 21 / vacuum thin cavity 26 / vacuum extraction port 27 / conduit 28 / vacuum filter 46 / solenoid valve 47 / vacuum pump 48) and a lifting guide rail device (adsorption platform lifting thread structure 22 / thread sleeve 23 / thread guide column 24 / first servo motor 25). The platform can be modularly assembled according to the part configuration and size requirements. Vacuum adsorption holes 21 are arranged on each module, and the height of each module platform can be individually controlled to meet the coordination and fixation of preforms such as long truss bars with different structures.

[0051] Furthermore, if Figure 2 Figure 3 As shown, the lifting guide rail device with individually adjustable height of the adsorption processing platform 20 includes: an adsorption platform lifting thread structure 22 / thread sleeve 23 / thread guide column 24 / first servo motor 25. One way is that each module platform is connected by a group of first servo motors 25, toothed belt pulley thread sleeve 23 / thread guide column 24, the lifting thread toothed belt pulley structure toothed belt pulley thread sleeve 23 / thread guide column 24, the thread guide column 24 is controlled by the rotating shaft of the first servo motor 25, the thread sleeve 23 is assembled on the module platform, the first servo motor 25 is connected to the PLC control system, and the height control is input by the human-computer interaction interface 45.

[0052] Furthermore, the vacuum adsorption system, such as Figure 6 As shown, one method is to arrange a matrix of vacuum adsorption holes 21 on the adsorption processing platform 20. The outer hole of the vacuum adsorption hole 21 is used to adsorb the composite material preform 10, and the inner hole is connected to the vacuum thin cavity 26 of the platform. The vacuum thin cavity 26 is arranged at the lower part of the adsorption processing platform 20. Each module platform of the adsorption processing platform is provided with a vacuum extraction port 27. The vacuum extraction port 27 is connected to the conduit 28. The conduit 28 is connected to the vacuum filter 46, the solenoid valve 47, and the vacuum pump 48. The solenoid valve 47 is connected to the PLC control system. The vacuum adsorption action is controlled by the human-computer interaction interface 45. The vacuum pump 48 is started in advance before work.

[0053] Furthermore, the module height is adjusted separately, the main purpose of which is to adapt to the bevel angle 11 of preforms of different configurations, to elevate the adsorption platform, to adapt to the ultrasonic tool 54 cutting at different angles, and to avoid interference of other parts of the preform with the ultrasonic cutting head 50 to achieve the target bevel angle.

[0054] During use, the first step is to adjust the position of the preform adsorption processing platform 20. Through the human-machine interface 45, the height of each group of adsorption processing platforms 20 is input through the program to control the action of the first servo motor 25. The adsorption processing platform 20 is kept at the required height through the lifting guide rail device (adsorption platform lifting thread structure 22 / thread sleeve 23 / thread guide column 24 / first servo motor 25) to ensure that the edge 12 of the L-shaped, C-shaped, T-shaped, I-shaped, and Ω-shaped structural rib preform 10 is in a non-interference and easy-to-process state with the ultrasonic cutting head 50, such as Figure 3 , Figure 4 shown.

[0055] The second step is to adsorb and fix the preform 10: start the vacuum pump 48, and the human-machine interface 45 starts the vacuum adsorption operation (PLC controls the solenoid valve) to adsorb and fix the rib structure preform 10 through the vacuum adsorption holes 21 of each adsorption processing platform 20, so that the preform 10 is stably adsorbed on the adsorption processing platform 20.

[0056] The third step is preliminary calibration of the benchmark and program. Using the benchmark holes and benchmark lines set on the platform, digital logic is used to execute program commands. The six-axis industrial robot arm 40 is positioned on the guide rails, with the preform edge 12 and the bevel angle 11 to be machined as the relative distance. The ultrasonic tool 54's starting position, operating angle, feed speed, and trajectory are preliminarily calibrated. The preliminary program is then run to observe whether the ultrasonic tool's trajectory and angle meet the target requirements. If the program fails to meet the requirements, the preliminary benchmark and program calibration steps are repeated.

[0057] Step 4: datum and program calibration: For the preliminary program of step 3, the position of the bevel angle to be processed at the edge 12 of the preform 10 is eliminated as a relative distance and set as the target cutting trajectory.

[0058] Step 5: Run the cutting program: Run the net size edge bevel 11 cutting program in step 4 above until the bevel 11 cutting of the rib preform is completed.

[0059] Step 6: Release and detach: close the airflow in the vacuum adsorption holes 21 and release the preformed body 10 with the structure including the ribs etc. that has been cut.

[0060] Step 7: Storage Program: A large number of rib preforms 10 with the same configuration are used in composite reinforced wall panels. The configuration is the same, and the storage program is used to facilitate batch cutting of other ribs with the same configuration.

[0061] The composite material preform bevel cutting device provided by the present invention can be used for cutting composite material preform structures 10 and the like.

[0062] Working principle: The main steps of this utility model are as follows:

[0063] Step 1: Adjust the position of the preform adsorption processing platform. Through the human-computer interaction interface, input the height of each module platform through the program, control the action of the servo motor, and maintain the adsorption platform at the required height through the lifting guide device to ensure that the edges of the L-shaped, C-shaped, T-shaped, I-shaped, and Ω-shaped structural rib preforms are in a non-interference and easy-to-process state with the ultrasonic cutting head.

[0064] Step 2: Preform adsorption and fixation: Start the vacuum pump, and start the vacuum adsorption operation on the human-machine interface (PLC controls the solenoid valve). The rib structure preform is adsorbed and fixed through the vacuum adsorption holes on the module platform, so that the preform is stably adsorbed on the processing platform.

[0065] Step 3: Initial calibration of the benchmark and program: Using the benchmark holes and benchmark lines set on the platform, the six-axis industrial robot arm is positioned on the guide rails, with the preform edge bevel position to be machined as the relative distance. The ultrasonic tool's starting position, operating angle, feed speed, and trajectory are initially calibrated. A preliminary program is then run to verify that the ultrasonic tool's trajectory and angle meet the target requirements. If the program fails to meet the requirements, the initial benchmark and program calibration steps are repeated.

[0066] Step 4, benchmark and program calibration: For the preliminary program of step 3, eliminate the bevel position of the preform edge to be processed as a relative distance and set it as the target cutting trajectory.

[0067] Step 5, run the cutting program: run the net size edge bevel cutting program in the above step 4 until the bevel cutting of the rib preform is completed.

[0068] Step 6: Release and detach: close the airflow in the vacuum adsorption hole and release the cut ribs and other structural preforms.

[0069] Step 7, storage program: The same configuration of rib preforms is used in large quantities in composite reinforced wall panels, and the configuration is the same. The program is stored to facilitate batch cutting of other ribs with the same configuration.

[0070] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An ultrasonic cutting device for bevel cutting of composite material preforms, characterized in that: The ultrasonic cutting device comprises: a preform adsorption processing platform, a guide rail type three-dimensional control robot arm, a control host and an ultrasonic cutting unit; The control host is connected to the preform adsorption processing platform, the guide rail type three-dimensional control robot arm, and the ultrasonic cutting unit through data wires to control their operation. The preform adsorption processing platform is installed on the working area, the guide rail type three-dimensional control robot arm is located on one side of the guide rail type three-dimensional control robot arm, and the ultrasonic cutting unit is installed on the guide rail type three-dimensional control robot arm. The control host controls the guide rail type three-dimensional control robot arm to drive the ultrasonic cutting unit to process the workpiece on the preform adsorption processing platform.

2. The ultrasonic cutting device for beveled composite material preform according to claim 1, characterized in that: The preform adsorption processing platform is composed of a modular combined platform; each adsorption processing platform is provided with a vacuum adsorption system and a lifting guide rail device.

3. The ultrasonic cutting device for composite material preforms with an oblique angle according to claim 2, characterized in that: The vacuum adsorption system comprises: a vacuum adsorption hole, a vacuum thin cavity, a vacuum extraction port, a conduit, a vacuum filter, a solenoid valve and a vacuum pump; The vacuum thin cavity is formed by the bottom of the adsorption processing platform. A number of vacuum adsorption holes are provided, which are formed by the top of the adsorption processing platform downwardly connected to the vacuum thin cavity. The vacuum extraction port is located on one side of the adsorption processing platform and is connected to the vacuum thin cavity. One end of the vacuum filter is connected to the vacuum extraction port through the conduit, and the other end is connected to one end of the solenoid valve through the conduit. The other end of the solenoid valve is connected to the vacuum pump through the conduit.

4. The ultrasonic cutting device for beveled composite material preform according to claim 2, characterized in that: The lifting guide rail device includes: an adsorption platform lifting thread structure, a thread sleeve, a thread guide column and a first servo motor; The adsorption platform lifting thread structure is fixedly installed on one end of the adsorption processing platform, the threaded sleeve is fixedly installed on the adsorption platform lifting thread structure, the threaded guide column is screwed to the threaded sleeve, and the rotating shaft of the first servo motor is connected to one end of the threaded guide column.

5. The ultrasonic cutting device for beveled composite material preform according to claim 1, characterized in that: The guide rail type three-dimensional control robotic arm includes: a robotic arm guide rail, a six-axis industrial robotic arm, a second servo motor, and a robotic arm base; the robotic arm guide rails are provided in plurality and are spliced ​​together, the robotic arm base is slidably installed on the robotic arm guide rail, and the second servo motor is installed on the robotic arm base to control the movement of the robotic arm base on the robotic arm guide rail; the six-axis industrial robotic arm is fixedly installed on the robotic arm base.

6. The ultrasonic cutting device for beveled composite material preform according to claim 1, characterized in that: The ultrasonic cutting unit includes: an ultrasonic cutting head, an ultrasonic generator, an ultrasonic transducer, an ultrasonic amplitude modulator, an ultrasonic cutter and a power supply wire; The ultrasonic generator is installed on the guide rail type three-dimensional control robot arm and is connected to the ultrasonic transducer through a power supply wire. The ultrasonic transducer, the ultrasonic amplitude modulator and the ultrasonic cutter are installed in the ultrasonic cutting head; the ultrasonic cutter is located at the bottom of the ultrasonic cutting head and extends to the outside. The ultrasonic amplitude modulator and the ultrasonic transducer are located in the ultrasonic cutting head, and the ultrasonic amplitude modulator is connected between the ultrasonic transducer and the ultrasonic cutter.

7. The ultrasonic cutting device for beveled composite material preform according to claim 1, characterized in that: The control host includes a universal program control system and a PLC joint control system. The universal program control system is connected to the preform adsorption processing platform and the guide rail type three-dimensional control robot arm, and the PLC joint control system is connected to the ultrasonic cutting unit.

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