Method and system for machining complex cartridge receiver type parts

Abstract

The invention discloses a method and a system for machining a complex casing part. The method comprises the following steps: repairing a defect area appearing in the production process of the complex casing part through a laser cladding technology; an ultrasonic device is adopted to perform stress release on concentrated stress generated in the complex cartridge receiver part in the manufacturing process; a 3D scanning technology is adopted for conducting scanning before grinding on the case type part subjected to stress release, and a three-dimensional model of the case type part before grinding is obtained; according to a contrastive analysis result of the three-dimensional model of the cartridge receiver type part before polishing and the theoretical design model, a Boolean operation method is adopted to conduct layering processing on the three-dimensional model of the cartridge receiver type part before polishing, and a polishing path of the cartridge receiver type part is obtained; and according to the grinding path, a grinding robot system is started to conduct position calibration, workpiece scanning, model matching, path planning and process adjustment on the cartridge receiver type part, and high-quality and efficient machining of the cartridge receiver type part is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of casing processing, and more specifically, relates to a processing method and system for complex casing parts. Background Art

[0002] The casing is a core component of an aircraft engine. Currently, the main processing method for the casing is to use casting or forging blanks for turning, milling, and welding. The blank has a large allowance, a long processing cycle, and the cavity structure is difficult to process. In addition, the processing process relies heavily on manual experience. On the one hand, this traditional processing method results in low processing quality and poor consistency of the casing, which leads to a short service life of the aircraft engine and is prone to flight accidents. On the other hand, it also causes a long iteration cycle for the development of my country's aircraft engines, which directly affects the update iteration speed and manufacturing capacity of aircraft engines. Summary of the invention

[0003] In view of the above defects or improvement needs of the prior art, the present invention provides a method and system for processing complex casing parts, which uses laser cladding technology to repair and strengthen defects of the casing during the production process, applies ultrasonic stress release technology to solve the stress concentration problem that may be generated inside the casing, obtains an accurate three-dimensional model of the casing workpiece through 3D scanning technology, and performs layered processing on the casing part model using Boolean operation method to obtain the processing path of the model, so that the planning of the grinding path is more accurate and efficient; the automated operation of the grinding robot system reduces the time and labor intensity of manual operation and improves the processing efficiency; the intelligent positioning, processing, process monitoring, detection and other process factors of the casing parts are realized through intelligent CNC processing technology, and the automation level of the manufacturing process is improved; the processing quality of complex casing parts is ensured, the production efficiency is improved, and the entire manufacturing process is optimized; it can solve the problems of large blank margin, long processing cycle, difficult cavity structure processing, and heavy reliance on manual experience in the processing process of casing parts in the prior art, resulting in low casing processing quality and poor consistency.

[0004] In order to achieve the above object, one aspect of the present invention provides a method for processing complex casing parts, comprising the following steps:

[0005] S1: Repair defective areas that occur during the production process of complex casing parts through laser cladding technology;

[0006] S2: Use ultrasonic device to release the concentrated stress generated inside complex casing parts during the manufacturing process;

[0007] S3: using a 3D scanning camera to scan the casing parts that have completed stress release in step S2 before polishing, and obtaining a three-dimensional model of the casing parts before polishing;

[0008] S4: according to the comparative analysis results of the three-dimensional model of the casing parts before grinding and the three-dimensional casing parts model designed theoretically, the three-dimensional model of the casing parts before grinding is layered by using a Boolean operation method to obtain a grinding path of the casing parts;

[0009] S5: According to the grinding path of the casing parts, the grinding robot system is started to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts, so as to achieve high-quality and efficient processing of the casing parts.

[0010] Furthermore, the laser cladding technology is used to repair defective areas that occur during the production process of complex casing parts; including:

[0011] S11: Detailed analysis of the material properties of casing parts to determine the appropriate laser cladding process parameters;

[0012] S12: Extract typical features from receiver parts and conduct feature forming process tests to verify and optimize the process;

[0013] S13: Analyze and optimize process strategies and process parameters to ensure the bonding strength between the forging blank and the additively formed features of the receiver parts;

[0014] S14: Record and store the results corresponding to different process parameters, and build a process database containing various materials, process parameters and results;

[0015] S15: Use the finite element method to predict the thermal deformation during the forming process of the casing parts, and verify it through experiments. According to the finite element analysis and experimental results, optimize the margin and process route during the forming process of the casing parts;

[0016] S16: Through the composite process of additive and subtractive materials, the accuracy and surface quality requirements of parts are met; through intelligent CNC machining technology, efficient, precise and intelligent production of casing parts is achieved.

[0017] Furthermore, in step S2, an ultrasonic device is used to release the concentrated stress generated inside the complex casing parts during the manufacturing process; including:

[0018] S21: Install the stress relief device at the appropriate position of the receiver parts to ensure that it can act evenly on the entire receiver parts structure;

[0019] S22: Set the parameters of the stress release device according to the material of the casing and the hard force generated during the processing;

[0020] S23: controlling the heating tube to heat the inner cavity of the casing or stop heating and keep it warm through the temperature control unit of the stress release device, and at the same time, setting the heat preservation time of the casing joint through the timer;

[0021] S24: After the holding time is reached, the stress releaser is started to release the stress inside the casing parts;

[0022] S25: Pressure-holding and straightening: Manually turn the torque wrench to drive the relevant components to clamp the receiver parts, and start the timer to start calculating the pressure-holding and straightening time; after the pressure-holding and straightening time is reached, turn off the timer power module, loosen the clamping device, and take out the receiver parts that have released the stress.

[0023] Furthermore, the stress releaser includes a control unit and an execution unit; the control unit includes a numerical control system and an ultrasonic drive controller; the execution unit includes an electric energy transmission unit, a transducer, a horn and a release clamp connected in sequence; the numerical control system is provided with a temperature control unit;

[0024] The numerical control system sends out instructions, the ultrasonic drive controller receives the instructions and drives the power transmission unit of the execution unit to transfer electric energy to the transducer, the transducer generates vibration, the vibration amplitude is amplified through the amplitude rod, and finally acts on the casing structure through the release clamp to release stress.

[0025] Further, in step S23, the temperature control unit of the stress releaser controls the heating tube to heat or stop heating and keep the inner cavity of the casing warm, and at the same time, sets the insulation time of the casing joint through a timer; including: starting a heating control button on the panel of the temperature control unit of the stress releaser, turning on a power module, and setting the insulation time of the casing joint through a timer;

[0026] The inner cavity of the casing is heated by the heating tube, and the air flow in the inner cavity of the casing is circulated by the axial fan. The actual temperature data inside the casing is sent to the temperature control unit through the built-in temperature sensor. The temperature control unit compares the actual temperature with the preset temperature value and controls the heating tube to continue heating or stop heating and keep warm.

[0027] Furthermore, in step S5, the polishing robot system includes an industrial robot body, a robot control cabinet connected to the industrial robot body, a path planning computer, a polishing tool, a torque sensor, a 3D scanning camera and a polishing workbench.

[0028] Further, in step S5, according to the grinding path of the casing parts, the grinding robot system is started to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts, so as to achieve high-quality and efficient processing of the casing parts; specifically including:

[0029] Calibrate the position and posture of the grinding tool and the workpiece to be ground;

[0030] Scan the workpiece to be polished and accurately match it with the theoretical model;

[0031] The grinding path planning and process adjustment are carried out for the precisely matched workpieces and the grinding is completed.

[0032] The second aspect of the present invention provides a complex casing parts processing system, which is used for the complex casing parts processing method, comprising:

[0033] The first main module is used to repair defective areas that occur during the production process of complex casing parts through laser cladding technology;

[0034] The second main module is used to use an ultrasonic device to release the concentrated stress generated inside the complex casing parts during the manufacturing process;

[0035] The third main module is used to use a 3D scanning camera to scan the casing parts that have completed stress release in step S2 before polishing to obtain a three-dimensional model of the casing parts before polishing;

[0036] The fourth main module is used to perform layered processing on the three-dimensional model of the casing parts before grinding using a Boolean operation method according to the comparative analysis results of the three-dimensional model of the casing parts before grinding and the three-dimensional casing parts model designed theoretically, so as to obtain a grinding path for the casing parts;

[0037] The fifth main module is used to start the grinding robot system to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts according to the grinding path of the casing parts, so as to achieve high-quality and efficient processing of the casing parts.

[0038] A third aspect of the present invention provides an electronic device, comprising a processor and a memory, wherein the processor and the memory are connected to each other;

[0039] The memory is used to store computer programs;

[0040] The processor is configured to execute the complex casing parts processing method when calling the computer program.

[0041] A fourth aspect of the present invention provides a computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the complex casing parts processing method.

[0042] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0043] (1) The present invention provides a method and system for processing complex casing parts. The laser cladding technology is used to repair defective areas of casing parts, thereby enhancing the structural integrity of the parts and improving the overall performance and durability. The ultrasonic stress release technology is used to effectively eliminate the residual stress inside the casing parts, prevent potential cracks and deformation, and improve the reliability of the parts. The process database is constructed so that the process parameters and results can be recorded and analyzed, providing data support for subsequent process optimization. The finite element method is used to predict and optimize the thermal deformation during the forming process, thereby reducing the impact of thermal deformation on the accuracy of the parts. The combination of 3D scanning technology and Boolean operation methods makes the planning of the grinding path more accurate and efficient. The automated operation of the grinding robot system reduces the time and labor intensity of manual operation and improves the processing efficiency. The intelligent CNC machining technology is used to realize the positioning, machining, process monitoring, and detection of casing parts. The intelligence of process factors improves the automation level of the manufacturing process; the application of six-dimensional torque sensors and 3D scanning cameras enables the force and torque in the grinding process to be precisely controlled, ensuring the grinding quality; the accuracy of the model is improved through precise calibration of the grinding tools and workpieces, as well as fine preprocessing and precise matching of the scanned model, thereby improving the processing accuracy; the present invention can adapt to casing parts of different shapes and sizes, and has good adaptability and flexibility; the labor cost and material waste are reduced through automated and intelligent processing methods, thereby reducing the overall production cost; the wear of casing parts during use is reduced through effective stress release and precise processing, thereby extending the service life of the equipment; the present invention integrates a variety of advanced technologies to achieve quality improvement, efficiency improvement and cost reduction in the processing of casing parts, while enhancing the intelligence and automation level of production, which is of great significance to the modernization of the manufacturing industry.

[0044] (2) The present invention provides a method and system for processing complex casing parts, which integrates multiple advanced manufacturing technologies such as laser cladding, 3D scanning, and robot polishing, and realizes full-process optimization from design to processing. The three-dimensional model of casing parts is layered by special software, which can automatically generate processing paths, reduce manual intervention, and improve the level of process automation. The application of layered processing technology is an important part of the development of intelligent manufacturing, which helps to promote the modernization and intelligentization of casing parts processing. The application of layered processing technology on the UG platform provides an efficient, accurate, and flexible solution for the processing of casing parts, which helps to improve product quality and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A schematic diagram of a process for processing complex casing parts according to an embodiment of the present invention;

[0046] Figure 2 It is a schematic diagram of the overall structure of a stress releaser in a method for processing complex casing parts according to an embodiment of the present invention;

[0047] Figure 3 A schematic structural diagram of a workpiece to be polished by a polishing robot system in a method for processing complex casing parts according to an embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram of the overall structure of a grinding robot system for a method for processing complex casing parts according to an embodiment of the present invention;

[0049] Figure 5 This is a structural schematic diagram of a complex casing parts processing system according to an embodiment of the present invention;

[0050] Figure 6 The figure is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention.

[0051] In all the drawings, the same reference numerals represent the same technical features, specifically: 100-CNC system, 200-ultrasonic drive controller, 1-torque sensor, 2-3D scanning camera, 3-grinding tool, 4-industrial robot body, 5-workpiece to be polished, 6-power transmission unit, 7-transducer, 8-amplifier, 9-release clamp. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, when an element is referred to as being "fixed to", "disposed on" or "provided on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element; the terms "installed", "connected", "connected" and "provided with" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0054] like Figure 1 As shown, one aspect of the present invention provides a method for processing complex casing parts, comprising the following steps:

[0055] S1: Repair defective areas that occur during the production process of complex casing parts through laser cladding technology;

[0056] S2: Use ultrasonic device to release the concentrated stress generated inside complex casing parts during the manufacturing process;

[0057] S3: using a 3D scanning camera to scan the casing parts that have completed stress release in step S2 before polishing, and obtaining a three-dimensional model of the casing parts before polishing;

[0058] S4: according to the comparative analysis results of the three-dimensional model of the casing parts before grinding and the three-dimensional casing parts model designed theoretically, the three-dimensional model of the casing parts before grinding is layered by using a Boolean operation method to obtain a grinding path of the casing parts;

[0059] S5: According to the grinding path of the casing parts, the grinding robot system is started to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts, so as to achieve high-quality and efficient processing of the casing parts.

[0060] Furthermore, the laser cladding technology described in step S1 is mainly used to repair and strengthen defective areas of the casing that occur during the production process, and to perform precise laser cutting of the laser in the welding area, including laser selective melting (SLM) and laser cladding forming; by precisely controlling the energy and path of the laser beam, the missing parts of the casing are effectively filled, and the structural integrity of the melting point area is optimized, thereby improving the performance and durability of the overall component; the defective areas that occur during the production process of complex casing parts are repaired by laser cladding technology; including:

[0061] S11: Detailed analysis of the material properties of casing parts to determine suitable laser cladding process parameters; the material properties of casing parts include the material's thermophysical properties, melting point, and thermal expansion coefficient; the process strategy and process parameters are optimized by studying the material's thermophysical properties, melting point, and thermal expansion coefficient of casing parts;

[0062] S12: Extract typical features from receiver parts and conduct feature forming process tests to verify and optimize the process; specifically, select representative part features for forming tests, which may include complex geometric shapes or specific functional requirements;

[0063] S13: Analyze and optimize process strategies and process parameters to ensure the bonding strength between the forging blank and the additively formed features of the casing parts; specifically, through experiments and simulations, study the effects of different process parameters (such as laser power, scanning speed, material type, etc.) on the bonding interface to determine the optimal process conditions;

[0064] S14: Record and store the results corresponding to different process parameters, and build a process database containing various materials, process parameters and results;

[0065] S15: Use the finite element method to predict the thermal deformation during the forming process of the casing parts, and verify it through experiments. According to the finite element analysis and experimental results, optimize the margin and process route during the forming process of the casing parts to reduce the impact of thermal deformation on the part accuracy.

[0066] S16: Through the composite process of additive and subtractive materials, the accuracy and surface quality requirements of parts are met; through intelligent CNC machining technology, efficient, precise and intelligent production of casing parts is achieved.

[0067] Furthermore, in step S16, the precision and surface quality requirements of the parts are met through the additive and subtractive composite process, including repairing or enhancing the characteristic areas of the casing parts through high-precision laser cladding technology, and meeting the design requirements through subsequent precision processing; the laser cladding technology manufacturing process is mainly used to repair and strengthen the defective areas of the casing that appear during the production process, and to perform precise laser cutting of the laser in the welding area; the characteristic areas of the casing parts are repaired or enhanced through high-precision laser cladding technology, including adjusting the laser parameters, the type and proportion of the cladding material, accurately controlling the energy and path of the laser beam, effectively filling the missing parts of the casing, and optimizing the structural integrity of the melting point area, thereby improving the performance and durability of the overall components; the efficient, precise and intelligent production of casing parts is realized through intelligent CNC processing technology, including realizing the intelligence of process factors such as positioning, processing, process monitoring, and detection of casing parts; that is, using high-precision CNC machine tools for turning and milling to improve processing accuracy and efficiency.

[0068] Furthermore, the high-frequency vibration generated by ultrasound in step S2 can effectively eliminate the hard force, i.e., stress, accumulated in the casing parts during the production process; this process not only helps to relieve the stress concentration inside the material, but also prevents potential cracks and deformation, thereby significantly improving the overall performance and durability of the components and ensuring the stability and reliability of the casing in long-term operation; specifically, the following steps are included:

[0069] S21: Install the stress release device at the appropriate position of the receiver parts to ensure that it can evenly act on the entire receiver parts structure; specifically, including:

[0070] During the preparation phase, ensure that the receiver has completed all necessary processing steps and is in a state ready for stress relief; check whether the stress relief device is intact and ensure that it is suitable for the receiver material and size;

[0071] Install the stress relief and install it in the appropriate position of the receiver to ensure that it can act evenly on the entire receiver structure;

[0072] Figure 2 It is a structural schematic diagram of a stress releaser; the stress releaser includes a control unit and an execution unit; the control unit includes a numerical control system 100 and an ultrasonic drive controller 200; the execution unit includes an electric energy transmission unit 6, a transducer 7, an amplitude change rod 8 and a release clamp 9 connected in sequence; the numerical control system 100 is responsible for issuing instructions to control the entire stress release process, and the ultrasonic drive controller 200 feeds back the operating status to the numerical control system to ensure that the stress releaser operates correctly according to the predetermined program; the electric energy transmission unit 6 is responsible for effectively transmitting electric energy to the transducer to drive the vibration of the entire system; the transducer 7 converts electric energy into mechanical vibration energy and is a key component of the ultrasonic vibration system; the amplitude change rod 8 is also called the amplitude amplification rod , its function is to amplify the vibration amplitude generated by the transducer 7 and transmit it to the release clamp 9; the release clamp 9 is a component that directly acts on the casing structure, and transmits the ultrasonic vibration to the casing through the release clamp 9 to achieve stress release; when working, the workflow of the entire stress releaser is: the numerical control system 100 issues an instruction, the ultrasonic drive controller 200 receives the instruction and drives the execution unit, the power transmission unit 6 transmits electric energy to the transducer 7, the transducer 7 generates vibration, and the vibration amplitude is amplified through the amplitude rod 8, and finally acts on the casing structure through the release clamp 9 to achieve stress release; this process is continuous and can be monitored and adjusted in real time by the ultrasonic drive controller 200 to ensure the best stress release effect;

[0073] S22: setting parameters of the stress releaser according to the casing material and the magnitude of the hard force generated during the processing; the parameters include pressure, temperature and time;

[0074] S23: Control the heating tube to heat or stop heating and keep the inner cavity of the casing through the temperature control unit of the stress releaser, and at the same time, set the insulation time of the casing joint through the timer; specifically, start the heating control button on the panel of the temperature control unit of the stress releaser, turn on the power module, and set the insulation time of the casing joint through the timer; heat the inner cavity of the casing through the heating tube, circulate the air flow in the inner cavity of the casing through the axial flow fan, send the actual temperature data in the casing to the temperature control unit through the built-in temperature sensor, and the temperature control unit compares the actual temperature with the preset temperature value, and controls the heating tube to continue heating or stop heating and keep warm;

[0075] S24: After the holding time is reached, the stress releaser is started to release the stress inside the casing parts. This process can be done by applying external pressure or performing mechanical operations to release the stress.

[0076] S25: Pressure-holding and straightening: Manually rotate the torque wrench to drive related components to clamp the casing parts, and start the timer to start calculating the pressure-holding and straightening time; when the pressure-holding and straightening time is reached, turn off the timer power module, loosen the clamping device, and take out the casing parts that have been released from stress;

[0077] S26: Inspection and verification: Use special equipment to inspect the receiver after stress release to verify whether the stress has been successfully released and whether the receiver has returned to the expected shape and size;

[0078] S27: Recording and analysis: recording all parameters and results during the stress release process and analyzing them to optimize subsequent stress release operations;

[0079] Furthermore, step S3 includes using a 3D scanning camera to perform a comprehensive and detailed scan on the casing parts, obtain accurate three-dimensional geometric data thereof, and generate a 3D model of the casing parts before polishing, through which the physical properties and structural details of the casing parts are reflected;

[0080] Furthermore, in step S4, the 3D model of the receiver parts before polishing is accurately matched and compared with the 3D model of the theoretical design; this comparison method combining practice and theory not only improves the accuracy of the model, but also optimizes the design process, ensuring the best performance of the receiver in terms of performance and structure; then, a dedicated software is developed based on the UG platform, which uses Boolean operations to layer the models of the receiver parts. This method can achieve the layered definition of the blank by performing Boolean addition operations between the various features of the parts according to the characteristics of the laser selective melting (SLM) and laser cladding forming processes. At the same time, we use the Boolean subtraction algorithm to plan the processing path of the layered model to ensure the efficiency and accuracy of the processing path.

[0081] Further, in step S5, the polishing robot system includes an industrial robot body 4, a robot control cabinet connected to the industrial robot body 4, a path planning computer, a polishing tool 3, a six-dimensional torque sensor 1, a 3D scanning camera 2 and a polishing workbench (such as Figure 3 and Figure 4 As shown); the torque sensor 1 is installed on the end flange of the industrial robot body 4 to measure the force and torque of the workpiece 5 to be polished (casing-type parts) in the sensor coordinate system; the polishing tool 3 is installed on the measuring surface of the torque sensor 1 through a connecting piece; the path planning computer is used to plan the polishing path of the polishing tool 3 on the workpiece to be processed, and the output end of the path planning computer is connected to the robot control cabinet.

[0082] Further, in step S5, according to the grinding path of the casing parts, the grinding robot system is started to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts, so as to achieve high-quality and efficient processing of the casing parts; specifically including:

[0083] 1) Calibrate the position and posture of the grinding tool 3 and the workpiece 5 to be ground

[0084] 1.1) Accurate calibration

[0085] First, the precision grinding tool 3 and the 3D scanning camera 2 mounted on the industrial robot are carefully calibrated. This key step ensures the precise positioning of the grinding tool 3 and the 3D scanning camera 2, laying a solid foundation for subsequent precise operations.

[0086] 1.2) Positioning of workpiece to be polished

[0087] Next, the workpiece to be polished is precisely calibrated to ensure that its position and posture are perfectly aligned with the robot coordinate system, providing a reliable reference for subsequent precision machining operations;

[0088] 2) Scanning the workpiece 5 to be polished and accurately matching it with the theoretical model;

[0089] 2.1) Detailed Scanning

[0090] A 3D scanning camera 2 (i.e., a high-precision three-dimensional visual scanner) is used to perform detailed point scanning on the workpiece 5 (casing-type parts) to be polished, so as to obtain the actual geometric shape of the workpiece to be polished and obtain the original model;

[0091] 2.2) Model preprocessing

[0092] Before model matching, the original model obtained by scanning is carefully preprocessed, and the noise points at the edges are manually removed to obtain a preprocessed scanned model to improve the accuracy of subsequent model matching;

[0093] 2.3) Exact Match

[0094] Precisely match the pre-processed scanned model with the theoretical model to identify slight deviations between the workpiece and the theoretical model;

[0095] This step is further optimized for special cases where the workpiece has obvious defects, such as incomplete edge processing, to improve the grinding quality. The specific optimization details are as follows:

[0096] 2.3.1) Workpiece edge repair

[0097] After the model matching is completed, the system software automatically determines that if there are obvious defects at the edge of the workpiece, it indicates that there are deficiencies. At this time, the workpiece needs to be sent back to the laser cladding process for repair. The laser cladding process is specifically shown in step S1; using advanced laser cladding technology, the deficient parts of the workpiece edge are accurately added and repaired to ensure the integrity and quality of the workpiece; after the repair is completed, the tool calibration, workpiece scanning, and model matching steps in the process 1) are re-executed;

[0098] 3) Plan the grinding path and process of the precisely matched workpiece and complete the grinding;

[0099] 3.1) Edge calibration

[0100] For the excessive areas on the edge of the workpiece, accurate calibration is performed and the data is imported into the robot path planning software;

[0101] 3.2) Path Optimization

[0102] Use professional robot path planning software to carefully plan the paths at the edges of the workpiece to ensure the accuracy and efficiency of the grinding process;

[0103] 3.3) Process adjustment

[0104] Combining rich practical experience and workpiece material characteristics, the force control value and the speed of the grinding head are accurately set to achieve the best grinding effect.

[0105] The complex casing parts processing method of the present invention ensures the processing quality of complex casing parts, improves production efficiency, and optimizes the entire manufacturing process by comprehensively using laser cladding technology, ultrasonic stress release, 3D scanning technology, layered processing technology, and robot automated polishing technology.

[0106] like Figure 5 As shown, the second aspect of the present invention provides a complex casing parts processing system for implementing the above-mentioned design method, including

[0107] The first main module is used to repair defective areas that occur during the production process of complex casing parts through laser cladding technology;

[0108] The second main module is used to use an ultrasonic device to release the concentrated stress generated inside the complex casing parts during the manufacturing process;

[0109] The third main module is used to use 3D scanning technology to scan the casing parts that have completed stress release in step S2 before polishing, and obtain a three-dimensional model of the casing parts before polishing;

[0110] The fourth main module is used to perform layered processing on the three-dimensional model of the casing parts before grinding using a Boolean operation method according to the comparative analysis results of the three-dimensional model of the casing parts before grinding and the three-dimensional casing parts model designed theoretically, so as to obtain a grinding path for the casing parts;

[0111] The fifth main module is used to start the grinding robot system to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts according to the grinding path of the casing parts, so as to achieve high-quality and efficient processing of the casing parts.

[0112] It should be noted that the complex casing parts processing system provided in this embodiment can be a computer program (including program code) running in a computer device, for example, the complex casing parts processing system is an application software; the complex casing parts processing system can be used to execute the corresponding steps in the above method provided in the embodiment of the present application.

[0113] In some feasible implementations, the complex casing parts processing system provided in the present embodiment can be implemented by a combination of software and hardware. As an example, the complex casing parts processing system provided in the present embodiment can be a processor in the form of a hardware decoding processor, which is programmed to execute the complex casing parts processing method provided in the present embodiment. For example, the processor in the form of a hardware decoding processor can adopt one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field programmable gate arrays (FPGAs) or other electronic components.

[0114] In some feasible implementations, the complex casing parts processing system provided in this embodiment can be implemented in software form, which can be software in the form of programs and plug-ins, and include a series of modules to implement the complex casing parts processing method provided in the embodiment of the present invention.

[0115] The complex casing parts processing system provided in this embodiment uses laser cladding technology to repair and strengthen defects that occur in the casing during the production process, applies ultrasonic stress release technology to solve the stress concentration problem that may occur inside the casing, obtains an accurate three-dimensional model of the casing workpiece through 3D scanning technology, and uses Boolean operation method to layer the casing parts model to obtain the processing path of the model, so that the planning of the grinding path is more accurate and efficient; the automated operation of the grinding robot system reduces the time and labor intensity of manual operation and improves the processing efficiency; the intelligent positioning, processing, process monitoring, detection and other process factors of the casing parts are realized through intelligent CNC processing technology, and the automation level of the manufacturing process is improved; the processing quality of complex casing parts is ensured, the production efficiency is improved, and the entire manufacturing process is optimized; it can solve the problems of large blank margin, long processing cycle, difficult cavity structure processing, and heavy reliance on manual experience in the processing process of casing parts in the prior art, resulting in low casing processing quality and poor consistency.

[0116] A third aspect of the present invention further provides an electronic device, Figure 6 Schematic diagram of the structure of the electronic device of this embodiment. Figure 6 As shown, the electronic device 1000 in this embodiment may include: a processor 1001, a network interface 1004 and a memory 1005. In addition, the above-mentioned electronic device 1000 may also include: a user interface 1003, and at least one communication bus 1002. Among them, the communication bus 1002 is used to realize the connection and communication between these components. Among them, the user interface 1003 may include a display screen (Display), a keyboard (Keyboard), and the user interface 1003 may optionally include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1004 may be a high-speed RAM memory, or it may be a non-volatile memory (non-volatile memory), such as at least one disk storage. The memory 1005 may optionally also be at least one storage device located away from the aforementioned processor 1001. As Figure 6 As shown, the memory 1005 as a computer-readable storage medium may include an operating system, a network communication module, a user interface module, and a device control application program.

[0117] like Figure 6 In the electronic device 1000 shown, the network interface 1004 can provide a network communication function; the user interface 1003 is mainly used to provide an input interface for the user; and the processor 1001 can be used to call the device control application stored in the memory 1005 to achieve:

[0118] Repair defective areas that occur during the production process of complex casing parts through laser cladding technology;

[0119] Ultrasonic devices are used to release the concentrated stress generated inside complex casing parts during the manufacturing process;

[0120] Using a 3D scanning camera to scan the casing parts that have completed stress release in step S2 before polishing, to obtain a three-dimensional model of the casing parts before polishing;

[0121] According to the comparative analysis results of the three-dimensional model of the casing parts before grinding and the three-dimensional casing parts model designed theoretically, the three-dimensional model of the casing parts before grinding is layered by using a Boolean operation method to obtain a grinding path for the casing parts;

[0122] According to the grinding path of the casing parts, the grinding robot system is started to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts, so as to achieve high-quality and efficient processing of the casing parts.

[0123] It should be understood that in some feasible implementations, the processor 1001 may be a central processing unit (CPU), or other general-purpose processors, DSPs, ASICs, FPGAs or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A portion of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0124] In a specific implementation, the electronic device 1000 can execute the above-mentioned functions through its built-in functional modules. Figure 1 For the implementation methods provided in each step, please refer to the implementation methods provided in the above steps for details, which will not be repeated here.

[0125] The electronic device provided in this embodiment uses laser cladding technology to repair and strengthen defects that occur in the casing during the production process, applies ultrasonic stress release technology to solve the stress concentration problem that may occur inside the casing, obtains an accurate three-dimensional model of the casing workpiece through 3D scanning technology, and performs layered processing on the casing part model through Boolean operation method to obtain the processing path of the model, so that the planning of the grinding path is more accurate and efficient; the automated operation of the grinding robot system reduces the time and labor intensity of manual operation and improves the processing efficiency; the intelligent positioning, processing, process monitoring, detection and other process factors of the casing parts are realized through intelligent CNC processing technology, and the automation level of the manufacturing process is improved; the processing quality of complex casing parts is ensured, the production efficiency is improved, and the entire manufacturing process is optimized; it can solve the problems of large blank margin, long processing cycle, difficult cavity structure processing, and heavy reliance on manual experience in the processing process of casing parts in the prior art, resulting in low casing processing quality and poor consistency.

[0126] The present application also provides a computer-readable storage medium, which stores a computer program and is executed by a processor to implement Figure 1 For the methods provided in each step, please refer to the implementation methods provided in the above steps for details, which will not be repeated here.

[0127] The computer-readable storage medium provided in this embodiment uses laser cladding technology to repair and strengthen defects that occur in the casing during the production process, applies ultrasonic stress release technology to solve the stress concentration problem that may occur inside the casing, obtains an accurate three-dimensional model of the casing workpiece through 3D scanning technology, and performs layered processing on the casing part model using Boolean operation methods to obtain the processing path of the model, so that the planning of the grinding path is more accurate and efficient; the automated operation of the grinding robot system reduces the time and labor intensity of manual operation and improves the processing efficiency; the intelligent positioning, processing, process monitoring, and detection of casing parts are realized through intelligent CNC processing technology, and the automation level of the manufacturing process is improved; the processing quality of complex casing parts is ensured, the production efficiency is improved, and the entire manufacturing process is optimized; it can solve the problems of large blank margins, long processing cycles, difficult cavity structure processing, and heavy reliance on manual experience in the processing of casing parts in the prior art, resulting in low casing processing quality and poor consistency.

[0128] Any reference to memory, storage, database or other medium used in the embodiments provided in the present application may include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0129] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for processing complex casing parts, characterized in that: The steps include: S1: Repair defective areas that occur during the production process of complex casing parts through laser cladding technology; S2: Use ultrasonic device to release the concentrated stress generated inside complex casing parts during the manufacturing process; S3: using a 3D scanning camera to scan the casing parts that have completed stress release in step S2 before polishing, and obtaining a three-dimensional model of the casing parts before polishing; S4: according to the comparative analysis results of the three-dimensional model of the casing parts before grinding and the three-dimensional casing parts model designed theoretically, the three-dimensional model of the casing parts before grinding is layered by using a Boolean operation method to obtain a grinding path of the casing parts; S5: According to the grinding path of the casing parts, the grinding robot system is started to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts, so as to achieve high-quality and efficient processing of the casing parts.

2. A method for processing complex casing parts according to claim 1, characterized in that: The laser cladding technology is used to repair defective areas that occur during the production process of complex casing parts; including: S11: Analyze the material properties of casing parts and determine the appropriate laser cladding process parameters; S12: Extract typical features from receiver parts and conduct feature forming process tests; S13: Analyze and optimize process strategies and process parameters to ensure the bonding strength between the forging blank and the additively formed features of the receiver parts; S14: Record and store the results corresponding to different process parameters, and build a process database containing various materials, process parameters and results; S15: Use the finite element method to predict the thermal deformation during the forming process of the casing parts, and verify it through experiments. According to the finite element analysis and experimental results, optimize the margin and process route during the forming process of the casing parts; S16: Through the composite process of additive and subtractive materials, the accuracy and surface quality requirements of parts are met; through intelligent CNC machining technology, efficient, precise and intelligent production of casing parts is achieved.

3. A method for processing complex casing parts according to claim 1, characterized in that: In step S2, an ultrasonic device is used to release the concentrated stress generated inside the complex casing parts during the manufacturing process; including: S21: Install the stress relief device at the appropriate position of the receiver parts to ensure that it can act evenly on the entire receiver parts structure; S22: Set the parameters of the stress release device according to the material of the casing and the hard force generated during the processing; S23: controlling the heating tube to heat the inner cavity of the casing or stop heating and keep it warm through the temperature control unit of the stress release device, and at the same time, setting the heat preservation time of the casing joint through the timer; S24: After the holding time is reached, the stress releaser is started to release the stress inside the casing parts; S25: Pressure-holding and straightening: Manually turn the torque wrench to drive the relevant components to clamp the receiver parts, and start the timer to start calculating the pressure-holding and straightening time; after the pressure-holding and straightening time is reached, turn off the timer power module, loosen the clamping device, and take out the receiver parts that have released the stress.

4. A method for processing complex casing parts according to claim 3, characterized in that: The stress releaser comprises a control unit and an execution unit; the control unit comprises a numerical control system (100) and an ultrasonic drive controller (200); the execution unit comprises an electric energy transmission unit (6), a transducer (7), a horn (8) and a release clamp (9) which are connected in sequence; and a temperature control unit is provided on the numerical control system (100); The numerical control system (100) issues an instruction, and the ultrasonic drive controller (200) receives the instruction and drives the power transmission unit (6) of the execution unit to transmit electric energy to the transducer (7). The transducer (7) generates vibration, and the vibration amplitude is amplified through the amplitude change rod (8). Finally, the vibration acts on the casing structure through the release clamp (9) to achieve stress release.

5. A method for processing complex casing parts according to claim 4, characterized in that: Step S23 controls the heating tube to heat or stop heating and keep the inner cavity of the casing warm through the temperature control unit of the stress releaser, and at the same time, sets the insulation time of the casing joint through the timer; including: starting the heating control button on the panel of the temperature control unit of the stress releaser, turning on the power module, and setting the insulation time of the casing joint through the timer; The inner cavity of the casing is heated by the heating tube, and the air flow in the inner cavity of the casing is circulated by the axial fan. The actual temperature data inside the casing is sent to the temperature control unit through the built-in temperature sensor. The temperature control unit compares the actual temperature with the preset temperature value and controls the heating tube to continue heating or stop heating and keep warm.

6. A method for processing complex casing parts according to any one of claims 1 to 5, characterized in that: In step S5, the polishing robot system includes an industrial robot body (4), a robot control cabinet connected to the industrial robot body (4), a path planning computer, a polishing tool (3), a torque sensor (1), a 3D scanning camera (2) and a polishing workbench.

7. A method for processing complex casing parts according to claim 6, characterized in that: In step S5, according to the grinding path of the casing parts, the grinding robot system is started to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts to achieve high-quality and efficient processing of the casing parts; specifically, the steps include: Calibrate the position and posture of the grinding tool (3) and the workpiece to be ground (5); Scanning the workpiece to be polished (5) and accurately matching it with the theoretical model; The grinding path planning and process adjustment are carried out for the precisely matched workpieces and the grinding is completed.

8. A complex casing parts processing system, characterized in that: A method for processing complex casing parts according to any one of claims 1 to 7, comprising: The first main module is used to repair defective areas that occur during the production process of complex casing parts through laser cladding technology; The second main module is used to use an ultrasonic device to release the concentrated stress generated inside the complex casing parts during the manufacturing process; The third main module is used to use a 3D scanning camera to scan the casing parts that have completed stress release in step S2 before polishing to obtain a three-dimensional model of the casing parts before polishing; The fourth main module is used to perform layered processing on the three-dimensional model of the casing parts before grinding using a Boolean operation method according to the comparative analysis results of the three-dimensional model of the casing parts before grinding and the three-dimensional casing parts model designed theoretically, so as to obtain a grinding path for the casing parts; The fifth main module is used to start the grinding robot system to perform position calibration, workpiece scanning, model matching, path planning and process adjustment on the casing parts according to the grinding path of the casing parts, so as to achieve high-quality and efficient processing of the casing parts.

9. An electronic device, characterized in that: comprising a processor and a memory, wherein the processor and the memory are connected to each other; The memory is used to store computer programs; The processor is configured to execute the complex casing parts processing method as described in any one of claims 1 to 7 when calling the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the complex casing parts processing method according to any one of claims 1 to 7.

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