Integrated control system and method of aero-engine case numerical control machining tool

Abstract

The integrated control system of the aero-engine case numerical control machining tool comprises a numerical control device, a servo driving system, a detection feedback system, a fault diagnosis and alarm system, a data management system and a human-computer interaction interface. The numerical control device is responsible for receiving a machining program and an operation instruction and carrying out numerical calculation and motion planning; the servo driving system realizes high-precision position and speed control; the detection feedback system monitors the machine tool state in real time and feeds back data; the fault diagnosis and alarm system monitors the running state of the machine tool in real time and gives an alarm in time; the data management system stores and manages processing data; and the man-machine interaction interface provides an operation interface. All the systems are closely integrated, information interaction is smooth, automatic and intelligent control over the machining process is achieved, the machining precision, efficiency and quality stability of the aero-engine case are remarkably improved, the production cost is reduced, the production time is shortened, and remarkable economic benefits and wide application prospects are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of numerical control machining of aircraft engine casings, and in particular relates to an integrated control system and method for a numerical control machining machine tool for aircraft engine casings. Background Art

[0002] As a critical component of aircraft engines, the machining accuracy and quality of aircraft engine casings directly impact engine performance and reliability. Traditional CNC machine tool control systems have numerous shortcomings when machining aircraft engine casings. In terms of control accuracy, traditional systems struggle to meet the high-precision machining requirements of aircraft engine casings.

[0003] The machining accuracy requirements for aircraft engine casings are extremely high, typically reaching the micron level. However, traditional CNC systems often struggle to meet this requirement due to mechanical transmission errors, temperature variations, and the inherent control accuracy limitations of the CNC device itself. Large machining errors not only affect the engine's assembly accuracy but can also cause vibration and increased noise during operation, impacting engine performance and lifespan. Furthermore, traditional CNC machine tools suffer from poor integration. The various functional modules of traditional CNC machine tools, such as the CNC device, servo drive system, and detection and feedback system, are typically relatively independent. This independence leads to poor information exchange between modules, resulting in untimely and inaccurate parameter adjustments during machining. For example, when the detection and feedback system detects a position error, the CNC device cannot obtain and process this data in a timely manner due to information transmission delays or interface incompatibility, making it unable to promptly correct motion control instructions. This not only reduces machining efficiency but also makes it difficult to ensure stable machining quality, resulting in the risk of scrap or defective products, and overall low machining efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated control system for CNC machining of aircraft engine casings, which solves the technical problem of low machining efficiency of traditional methods, improves machining accuracy, integration and intelligence, and ensures machining quality and production efficiency of aircraft engine casings. See the following introduction:

[0005] An integrated control system for a CNC machining machine tool for an aircraft engine casing, comprising:

[0006] The CNC unit is used to receive external input processing programs and operating instructions, and perform numerical calculations, logical judgments and motion control of the processing axes of the CNC machine tools to form control signals;

[0007] A servo drive system is communicatively connected to the CNC unit and is capable of receiving the control signal, reading and executing the control signal and driving the motors of the various axes of the CNC machine tool to achieve high-precision position and speed control;

[0008] A detection and feedback system monitors the operating parameters of each axis of the CNC machine tool in real time and feeds the monitoring data back to the CNC unit, wherein the operating parameters include position, temperature and pressure parameters;

[0009] Fault diagnosis and alarm system, which is used to monitor the operating status of CNC machine tools in real time and generate diagnostic fault data and trigger alarm signals when fault signals or abnormal signals appear;

[0010] Data management system, used to store and manage machining programs, process parameters, tool information, and machining log data during the CNC machining process. It supports data query, statistics, and analysis, and can be integrated with external enterprise-level data management systems.

[0011] The human-computer interaction interface provides an operation interface, which receives the processing program input and the set process parameters by the operator in a human-computer interaction manner, watches the processing process, checks the processing status and alarm information, and displays the processing trajectory, tool path and workpiece model in a graphical manner.

[0012] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0013] The system can improve machining accuracy. Through high-precision CNC units, servo drive systems and detection feedback systems, it achieves precise control and real-time compensation of the movement of each axis of the machine tool, effectively improving the machining accuracy of aircraft engine casings and meeting the high-precision assembly requirements of engines. At the same time, it enhances system integration, enables close integration between various functional modules, and smooth information exchange, realizes automation and intelligent control of the machining process, and improves production efficiency and quality stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 Schematic diagram of the architecture of the integrated control system of the present invention;

[0016] Figure 2 Schematic diagram of the control method of the present invention. DETAILED DESCRIPTION

[0017] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that aspects can be practiced without these specific details. In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. The terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise stated, "multiple" means two or more.

[0019] The low level of intelligence severely restricts the application of traditional CNC machine tools. Traditional systems lack real-time monitoring, fault diagnosis, and automatic optimization capabilities for the machining process. During the machining process, if abnormalities such as tool wear, excessive cutting forces, or machine vibration occur, the system cannot promptly detect and address them. This can lead to machining quality issues such as substandard surface finish and dimensional deviations. These issues can even cause equipment failure, damage to tools and machine components, and increase production costs and repair time. Operators often rely on experience to conduct continuous inspections, making it difficult to achieve unmanned, intelligent production. Furthermore, traditional CNC machine control systems also have shortcomings in terms of human-machine interaction. Their user interfaces are often complex and non-intuitive, requiring extensive training for operators to master them. Furthermore, the systems lack effective visualization tools to intuitively display machining trajectories, tool paths, and workpiece models, significantly hindering programming, debugging, and monitoring. Consequently, traditional CNC machine control systems are no longer able to meet the demands of modern aircraft engine casing machining. Therefore, there is an urgent need for an integrated control system for CNC machining of aircraft engine casings that can achieve high precision, high integration and intelligent control, so as to improve processing efficiency, quality and reliability, reduce production costs and adapt to the rapid development of the aircraft engine manufacturing industry.

[0020] like Figures 1 to 2 The integrated control system of the aircraft engine casing CNC machining machine shown includes:

[0021] The CNC unit is used to receive external input processing programs and operating instructions, and perform numerical calculations, logical judgments and motion control on the processing axes of the CNC machine tools to form control signals. Its purpose is to realize the multi-axis linkage control function of the CNC machine tools, and to accurately control the motion trajectory and speed of each axis of the machine tool. That is, the CNC unit serves as the core control unit of the system, and is responsible for receiving processing programs and operating instructions, performing numerical calculations, logical judgments and motion control; it has a multi-axis linkage control function, which can accurately control the motion trajectory and speed of each axis of the machine tool, and realize the processing of complex-shaped aircraft engine casings.

[0022] The servo drive system is connected to the numerical control unit and can receive control signals, read and execute control signals and drive the motors of each axis of the numerical control machine tool to achieve high-precision position and speed control. Specifically, the numerical control unit interacts with the servo drive system, detection feedback system, fault diagnosis and alarm system, data management system and human-computer interaction interface through a communication interface to exchange data and transmit control instructions. Preferably, the servo drive system adopts a servo algorithm that runs PID control, which can improve the response speed and control accuracy of the motor and reduce processing vibration and error. The PID control servo algorithm is as follows:

[0023]

[0024]

[0025]

[0026]

[0027] The detection and feedback system monitors the working parameters of each axis of the CNC machine tool in real time and feeds back the monitoring data to the CNC unit. The working parameters include position, temperature and pressure parameters. Generally, feedback is performed through position detection sensors, temperature sensors, pressure sensors, etc. installed on the CNC machine tool. Generally, the position detection sensor in the detection and feedback system is a high-precision grating scale or magnetic scale, which can accurately measure the displacement of each axis of the machine tool. The temperature sensor in the detection and feedback system can monitor the temperature changes of key parts of the machine tool. The pressure sensor in the detection and feedback system can monitor the cutting fluid pressure and air pressure parameters, that is, the position, temperature and pressure parameters of each axis of the machine tool are monitored in real time, and the monitoring data are fed back to the CNC unit. The CNC unit performs real-time compensation and adjustment based on the feedback data to ensure processing accuracy.

[0028] The fault diagnosis and alarm system is used to monitor the operating status of CNC machine tools in real time. When a fault signal or abnormality occurs, it can generate diagnostic fault data and trigger an alarm signal. Specifically, the fault diagnosis and alarm system includes a fault diagnosis module and an alarm module. The fault diagnosis module performs fault analysis based on the machine tool's operating data and a preset fault diagnosis model. The alarm module is used to emit audible and visual alarm signals and display fault diagnosis information when the CNC machine tool fails. The system monitors the machine tool's operating status in real time. When a fault or abnormality occurs, it can quickly diagnose the cause of the fault and issue an alarm signal. It also provides fault diagnosis information to facilitate maintenance personnel to quickly locate and troubleshoot the fault.

[0029] The data management system is used to store and manage machining programs, process parameters, tool information, and machining log data during CNC machine tool processing. It supports data query, statistics, and analysis, and can be integrated with external enterprise-level data management systems. Preferably, the data management system uses database algorithms for data storage and management, and supports data backup, recovery, and encryption to ensure data security and integrity. It provides data support for production management and quality control, and can be integrated with enterprise-level data management systems to enable data sharing and interaction.

[0030] The human-machine interaction interface provides an operation interface, which receives the processing program input and the set process parameters by the operator in a human-machine interactive manner, watches the processing process, checks the processing status and alarm information, and displays the processing trajectory, tool path and workpiece model in a graphical manner. For example, the human-machine interaction interface supports multi-touch operation by adopting a touch screen display, which facilitates the operator's data input and information query.

[0031] The system has enhanced its intelligence level and is equipped with fault diagnosis and alarm functions, which can promptly detect and handle abnormal situations in the processing process, reducing downtime and maintenance costs. At the same time, the application of the data management system provides strong support for production management and quality control, helping to optimize processing technology and improve product quality. The connection relationship and workflow between the various systems are as follows:

[0032] The CNC unit exchanges data and transmits control instructions with the servo drive system, detection and feedback system, fault diagnosis and alarm system, data management system and human-machine interface through the communication interface; during processing, the operator inputs the processing program and process parameters through the human-machine interface, the CNC unit performs numerical calculations and motion planning, generates control signals and sends them to the servo drive system to drive the movement of each axis of the machine tool; at the same time, the detection and feedback system monitors the machine tool status in real time and feeds back the data to the CNC unit, and the CNC unit performs real-time compensation and adjustment based on the feedback data; the fault diagnosis and alarm system monitors the operating status of the machine tool, detects faults in a timely manner and issues alarms; the data management system stores and manages various types of data, providing data support for the human-machine interface.

[0033] In a specific embodiment, a network communication module is further included, which is used to connect the integrated control system with external devices or networks to facilitate remote monitoring, data transmission and software upgrades.

[0034] Secondly, a control method for a CNC machining center for an aircraft engine casing is provided, which adopts part or all of the control system described above. The control method includes:

[0035] S1: Input or obtain machining programs and process parameters through human-computer interaction. The machining programs include the geometric shape, dimensional accuracy, and surface roughness of the aircraft engine casing. The process parameters include cutting speed, feed rate, cutting depth, and tool parameters.

[0036] S2: The CNC unit performs numerical calculations and motion planning on the input machining program and process parameters, and generates motion control instructions for each axis of the CNC machine tool;

[0037] S3: The servo drive system receives the motion control instructions and drives the motors corresponding to the axes of the CNC machine tool to move according to the predetermined motion trajectory and speed;

[0038] S4: The detection feedback system monitors the position, temperature and pressure parameters of each axis of the CNC machine tool in real time and feeds the monitoring data back to the CNC unit;

[0039] S5: The CNC unit performs real-time compensation and adjustments based on the feedback monitoring data to ensure that the tool processes the aircraft engine casing along a precise trajectory;

[0040] S6: The fault diagnosis and alarm system monitors the operating status of the machine tool in real time. When a fault or abnormality occurs, it quickly diagnoses the cause of the fault and issues an alarm signal.

[0041] S7: The data management system stores and manages the data in the machining process in real time, including the machining program, process parameters, tool usage records, machining time and fault information of the CNC machine tools;

[0042] S8: The processing status, tool path, and workpiece model information of the part are displayed in real time through the human-computer interaction interface, and displayed in the form of images or videos, making it easier for operators to monitor the processing process.

[0043] Furthermore, the CNC unit in S5 performs real-time compensation and adjustment based on the feedback monitoring data, including installing position detection sensors on the guide rails of each axis of the CNC machine tool and setting the resolution of the position detection sensors. The actual position of the CNC machine tool worktable is accurately measured in real time through the position detection sensors. The acquisition cycle is preset, and the position data is sampled once in each cycle and fed back to the CNC unit. The CNC unit compares the actual position with the theoretical position and calculates the error value. If the error value exceeds the set compensation threshold, the feed rate of each tool on each axis of the CNC machine tool is determined through a real-time compensation algorithm, and the feed rate is increased accordingly in the next control cycle, so that the tool quickly catches up with the theoretical position to ensure processing accuracy. An example is as follows:

[0044] Position detection sensors (such as grating rulers) are installed on the guide rails of each axis of the machine tool. Taking the X-axis as an example, the grating ruler has a resolution of 0.0001mm and can accurately measure the actual position of the worktable in real time. Position data is sampled every 1ms and fed back to the CNC unit. The CNC unit compares the actual position feedback with the theoretical position and calculates the error value. If the error exceeds the set compensation threshold (such as 0.005mm), the subsequent motion control instructions are adjusted through the real-time compensation algorithm. For example, if the actual position of the X-axis lags behind the theoretical position by 0.006mm, the real-time compensation algorithm will increase the X-axis feed rate in the next control cycle, allowing the tool to quickly catch up with the theoretical position and ensure machining accuracy.

[0045] The integrated control system of this aircraft engine casing CNC machining machine has been successfully applied in a certain aircraft engine casing machining workshop, significantly improving machining accuracy and efficiency. The specific implementation process is described in detail below:

[0046] 1. The operator inputs the processing program and process parameters

[0047] The operator inputs the pre-programmed casing processing program and related process parameters into the system through the human-computer interface. The processing program is generated based on the three-dimensional CAD model of the aircraft engine casing and contains detailed information such as the geometry, dimensional accuracy, and surface roughness of each part of the casing. The process parameters include cutting speed (for example, set to 150-200m / min in the roughing stage and 100-150m / min in the finishing stage), feed rate (0.1-0.2mm / r during roughing and 0.05-0.1mm / r during finishing), cutting depth (2-3mm for roughing and 0.5-1mm for finishing), and tool parameters (such as tool diameter, blade length, material, etc. Commonly used tools include carbide milling cutters with diameters of Φ50mm and Φ30mm).

[0048] 2. Numerical calculation and motion planning of CNC unit

[0049] After receiving the input information, the CNC unit performs numerical calculations and motion planning through the built-in CAM software. It uses the advanced non-uniform rational B-spline (NURBS) interpolation algorithm to generate motion control instructions for each axis. Taking a complex surface on the processing machine casing as an example, the NURBS interpolation algorithm decomposes the surface into multiple tiny line segments, calculates the coordinate points and feed speed of the tool along these line segments, and generates a smooth and efficient tool path to ensure processing accuracy and surface quality. At the same time, tool radius compensation and tool wear compensation are taken into account, and the tool path is corrected according to the actual size and wear of the tool. The compensation amount is generally within the range of 0.01-0.05mm.

[0050] 3. Servo drive system drives the motor to operate

[0051] The generated motion control instructions are sent to the servo drive system via a high-speed serial communication interface (such as EtherCAT). After receiving the instructions, the servo drive system uses a PID-based servo algorithm to control the operation of the motors in the machine tool's X, Y, and Z axes. For example, when the X-axis receives a command to move 10mm to the right, the servo drive calculates the required speed and torque, driving the motor to rotate precisely, driving the X-axis leadscrew and moving the worktable along the X-axis. During motor operation, parameters such as motor current, voltage, and speed are monitored in real time. Closed-loop control ensures that the deviation between the motor's actual position and the control command is within ±0.001mm.

[0052] 4. Position Detection and Real-time Compensation

[0053] Position detection sensors (such as grating rulers) are installed on the guide rails of each axis of the machine tool. Taking the X-axis as an example, the grating ruler has a resolution of 0.0001mm and can accurately measure the actual position of the worktable in real time. Position data is sampled every 1ms and fed back to the CNC unit. The CNC unit compares the actual position feedback with the theoretical position and calculates the error value. If the error exceeds the set compensation threshold (such as 0.005mm), the subsequent motion control instructions are adjusted through the real-time compensation algorithm. For example, if the actual position of the X-axis lags behind the theoretical position by 0.006mm, the real-time compensation algorithm will increase the X-axis feed rate in the next control cycle, allowing the tool to quickly catch up with the theoretical position and ensure machining accuracy.

[0054] 5. Temperature and pressure monitoring and adjustment

[0055] During machining, temperature sensors are installed in key locations such as the machine tool spindle, bearings, and cutting tools to monitor temperature changes in real time. For example, the normal spindle temperature range is 20-30°C. When the temperature exceeds 35°C, the CNC unit determines that the temperature has risen abnormally, possibly due to excessive cutting load or a cooling system malfunction. At this point, the system automatically reduces the cutting speed by 10%-20% and checks the coolant flow and pressure for normal operation. Pressure sensors are installed in the cutting fluid and pneumatic systems. The normal cutting fluid pressure range is 0.3-0.5 MPa, and the normal air pressure range is 0.6-0.8 MPa. If the pressure drops abnormally, it may indicate a pipe blockage or leak. The system will sound an alarm and suspend machining, prompting the operator to perform inspection and maintenance.

[0056] 6. Fault diagnosis and alarm

[0057] The fault diagnosis and alarm system monitors the machine tool's operating status in real time, including information such as motor current, voltage, and vibration. For example, in the case of motor overload, if the motor current exceeds 120% of the rated current, the system immediately identifies a motor overload fault. The fault diagnosis module analyzes characteristics such as sudden changes in motor current and decreased speed to determine the cause of the fault as excessive cutting force or a stuck mechanical transmission. Upon this, the alarm module issues an audible and visual alarm signal, with a flashing red warning light. A pop-up fault alarm window appears on the human-machine interface, displaying a fault code (such as F001) and detailed fault information (such as "X-axis motor overload, possible cause: excessive cutting force or stuck mechanical transmission"), prompting the operator to address the problem. Based on the alarm information, the operator can promptly adjust cutting parameters or inspect mechanical components to avoid equipment damage and machining accidents.

[0058] 7. Data Management and Analysis

[0059] The data management system stores and manages all types of data throughout the entire machining process in real time. Data such as machining programs, process parameters, tool usage records, and machining time are stored in a local database and regularly backed up to a cloud server. Taking a particular machining task as an example, the stored data includes the machining program file name (e.g., "engine_casing_001.nc"), cutting speed (180 m / min), feed rate (0.15 mm / r), cutting depth (2 mm), tool number (e.g., "tool_001," diameter Φ50 mm), and machining time (e.g., 2 hours and 30 minutes). Operators can query historical machining data through the human-computer interaction interface and analyze the impact of different process parameters on machining accuracy and efficiency. For example, by comparing surface roughness data at different cutting speeds, it was found that when the cutting speed was reduced from 180 m / min to 150 m / min, the surface roughness decreased from Ra1.2 μm to Ra0.8 μm, thereby optimizing the cutting speed parameter. At the same time, the data management system supports integration with enterprise-level MES (Manufacturing Execution System), uploading machining data in real time to provide a decision-making basis for production scheduling and quality control.

[0060] Through the above specific implementation methods, the integrated control system of the CNC machining machine tool for aircraft engine casings realizes high-precision, high-efficiency and high-reliability machining control, effectively improves the machining quality and production efficiency of aircraft engine casings, and has significant economic benefits and promotion and application value.

[0061] The above is a detailed introduction to the product provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the core ideas of the present invention. It should be pointed out that, for those skilled in the art, without departing from the principles of the invention, several improvements and modifications can be made to the invention, and these improvements and modifications also fall within the scope of protection of the invention claims.

Claims

1. An integrated control system for a CNC machining center for an aircraft engine casing, characterized in that: Its systems include: The CNC unit is used to receive external input processing programs and operating instructions, and perform numerical calculations, logical judgments and motion control of the processing axes of the CNC machine tools to form control signals; A servo drive system is communicatively connected to the CNC unit and is capable of receiving the control signal, reading and executing the control signal and driving the motors of the various axes of the CNC machine tool to achieve high-precision position and speed control; A detection and feedback system monitors the operating parameters of each axis of the CNC machine tool in real time and feeds the monitoring data back to the CNC unit, wherein the operating parameters include position, temperature and pressure parameters; Fault diagnosis and alarm system, which is used to monitor the operating status of CNC machine tools in real time and generate diagnostic fault data and trigger alarm signals when fault signals or abnormal signals appear; Data management system, used to store and manage machining programs, process parameters, tool information, and machining log data during the CNC machining process. It supports data query, statistics, and analysis, and can be integrated with external enterprise-level data management systems. The human-computer interaction interface provides an operation interface, which receives the processing program input and the set process parameters by the operator in a human-computer interaction manner, watches the processing process, checks the processing status and alarm information, and displays the processing trajectory, tool path and workpiece model in a graphical manner.

2. The integrated control system according to claim 1, characterized in that: The numerical control unit interacts with the servo drive system, detection feedback system, fault diagnosis and alarm system, data management system and human-computer interaction interface through a communication interface to perform data interaction and transmit control instructions.

3. The integrated control system according to claim 1, characterized in that: The servo drive system adopts a servo algorithm that runs PID control, which can improve the response speed and control accuracy of the motor and reduce processing vibration and error.

4. The integrated control system according to claim 1, characterized in that: The position detection sensor in the detection feedback system is a high-precision grating scale or magnetic scale, which can accurately measure the displacement of each axis of the machine tool; The temperature sensor in the detection and feedback system can monitor the temperature changes of key parts of the machine tool, and the pressure sensor in the detection and feedback system can monitor the cutting fluid pressure and air pressure parameters.

5. The integrated control system according to claim 1, characterized in that: The fault diagnosis and alarm system includes a fault diagnosis module and an alarm module, wherein: The fault diagnosis module performs fault analysis based on the machine tool's operating data and a preset fault diagnosis model; The alarm module is used to send out sound and light alarm signals when a numerical control machine tool fails, and to display fault diagnosis information.

6. The integrated control system according to claim 1, characterized in that: The data management system adopts database algorithms to store and manage data, and supports data backup, recovery and encryption functions to ensure the security and integrity of data.

7. The integrated control system according to claim 1, characterized in that: The human-computer interaction interface supports multi-touch operation by adopting a touch screen display, which facilitates data input and information query by operators.

8. The integrated control system according to claim 1, characterized in that: It also includes a network communication module, which is used to connect the integrated control system with external equipment or a network to facilitate remote monitoring, data transmission, and software upgrades.

9. A control method for a CNC machining machine tool for an aircraft engine casing, characterized in that: Using the control system according to any one of claims 1 to 8, the control method includes: S1: inputting or obtaining a machining program and process parameters through human-computer interaction, wherein the machining program includes the geometric shape, dimensional accuracy, and surface roughness of the aircraft engine casing, and the process parameters include cutting speed, feed rate, cutting depth, and tool parameters; S2: The CNC unit performs numerical calculation and motion planning on the input machining program and process parameters to generate motion control instructions for each axis of the CNC machine tool; S3: The servo drive system receives the motion control instruction and drives the motor corresponding to each axis of the CNC machine tool to move according to a predetermined motion trajectory and speed; S4: The detection feedback system monitors the position, temperature and pressure parameters of each axis of the CNC machine tool in real time and feeds the monitoring data back to the CNC unit; S5: The CNC unit performs real-time compensation and adjustments based on the feedback monitoring data to ensure that the tool processes the aircraft engine casing along a precise trajectory; S6: The fault diagnosis and alarm system monitors the operating status of the machine tool in real time. When a fault or abnormality occurs, it quickly diagnoses the cause of the fault and issues an alarm signal. S7: The data management system stores and manages the data in the machining process in real time, including the machining program, process parameters, tool usage records, machining time and fault information of the CNC machine tools; S8: The processing status, tool path, and workpiece model information of the part are displayed in real time through the human-computer interaction interface, and displayed in the form of images or videos, making it easier for operators to monitor the processing process.

10. The control method according to claim 9, characterized in that: The CNC unit in S5 performs real-time compensation and adjustment based on the feedback monitoring data, including: Installing position detection sensors on the guide rails of each axis of the CNC machine tool and setting the resolution of the position detection sensors, so that the actual position of the CNC machine tool worktable can be accurately measured in real time by the position detection sensors; The acquisition cycle is preset, and the position data is sampled once in each cycle and fed back to the CNC unit; The CNC unit compares the actual position with the theoretical position and calculates the error value. If the error value exceeds the set compensation threshold, the feed amount of each tool on each axis of the CNC machine tool is determined through a real-time compensation algorithm, and the feed amount is increased accordingly in the next control cycle, so that the tool quickly catches up with the theoretical position and ensures processing accuracy.

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