A method and system for rounding and chamfering the end teeth of a circular arc.

Abstract

The application provides a circular arc end tooth rounding and chamfering processing method and system, and relates to the technical field of machining. The method comprises the following steps: installing a high-precision measuring head on a five-axis numerical control machining center, planning a outer circle, inner circle and tooth end surface measurement program according to an end tooth solid model by using adaptive software QJCAM, obtaining point position data through contact measurement, leveling and aligning the end tooth and determining the angular position according to the point position data, and updating the machining coordinate system; after the part position is calibrated, QJCAM generates a rounding contact surface feature program, plans a measurement path based on the new coordinate system, analyzes the results after running, and fits the end tooth model of the actual size according to the returned data through a specific algorithm; QJCAM maps the original tool path to the new model, adaptively adjusts and generates a new tool path according to the model geometric characteristics and the accuracy requirements, accurately controls the five-axis machining path, realizes high-precision, high-efficiency and intelligent rounding and chamfering machining, and ensures the smoothness and accuracy of the tool path. The application realizes efficient and intelligent machining, and is suitable for machining of key components such as aircraft engines.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and in particular to a method and system for rounding and chamfering the end teeth of arc-shaped teeth. Background Technology

[0002] Among the key components of aero-engine turbine rotors, turbine disks, compressor disks, and turbine blades play crucial roles. These components rotate continuously at high speeds under high temperature, high pressure, and complex dynamic load conditions, making their working environment extremely harsh.

[0003] The fit between the arc-shaped teeth of the turbine disk and the gears constitutes a crucial part of the transmission structure of an aero-engine. Simultaneously, the precise fit between the tenon and groove portions of the turbine disk and compressor disk and the tenon portions of the blades is also essential. However, due to the complex and varied stress conditions experienced by the blades during operation, the edges of the turbine disk and compressor disk tenons, as well as the edges of the blade tenons, become vulnerable areas prone to stress concentration during the interaction between the disk tenons and grooves and the blade tenons.

[0004] To fully utilize the functions of each component and ensure the overall stability and reliability of the product's performance, further work is required even after the specified dimensional and geometric accuracy of the components has been achieved, if their surface quality does not meet the standards. This mainly involves deburring, removing flash, and removing tool marks, with the aim of reducing the surface roughness, improving the distribution of surface stress, and eliminating various defects remaining on the component's surface. It is worth noting that if the rounding and chamfering process is not standardized, resulting in irregularities, sharp corners, steps, or missing material, then when the component operates under high loads, it is highly likely to develop cracks due to excessive local stress concentration, posing a serious threat to the safe operation of the aero-engine.

[0005] In the existing technical field, there are two main methods for rounding the tenons, end teeth, and edges of parts such as turbine disks, compressor disks, and turbine blades:

[0006] Firstly, traditional manual machining methods have long been widely used. This method is highly dependent on the operator's skill level, is extremely labor-intensive, and has low processing efficiency. During manual operation, the operator may not be able to detect subtle wrist tremors, which can adversely affect the machining direction of the rotating file head, easily causing scratches when machining critical surfaces such as tenons and teeth. In addition, sometimes the file may penetrate too deeply into the part's surface, damaging the surface and causing scratches—all of which are incidental damages. Especially when there are many tenons and teeth, these damage marks are difficult to detect in time, directly leading to unstable and inconsistent surface quality. Moreover, after shot peening, these surface defects can easily cause stress concentration, posing a significant threat to engine flight safety.

[0007] Secondly, there are some rounding and chamfering machine tools on the market, such as tenon chamfering machines and turbine disc chamfering machines. These machine tools usually adopt a semi-automatic cycle mode, and their worktables can perform unequal feed operations. The feed method can be tool feed or workpiece feed according to actual needs. However, the machining accuracy of these machine tools is difficult to meet high-precision requirements. When the dimensional accuracy of the parts is high, the machining effect cannot reach the ideal state and cannot effectively meet the usage requirements.

[0008] In summary, existing technologies have many shortcomings in the rounding and chamfering of arc-shaped toothed parts, and there is an urgent need for a more efficient, accurate and reliable processing method and system to solve these problems, which lays a practical foundation for the proposal of this invention. Summary of the Invention

[0009] To address this issue, this invention provides a method and system for rounding and chamfering arc-shaped end teeth, which solves the problems of difficult, inaccurate, and slow processing of rounded end teeth in existing technologies.

[0010] To address the aforementioned problems, embodiments of the present invention provide a method for rounding and chamfering the end teeth of an arc, the method comprising:

[0011] S1: Install a high-precision probe on a five-axis CNC machining center, and use the adaptive software QJCAM to plan and generate a measurement program for the outer circle, inner circle, and tooth end face features of the end tooth. Run the program to obtain measurement point data in a contact measurement manner, and automatically level, align, and determine the precise angular position of the end tooth based on the measurement point data, and update the original machining coordinate system. The measurement program is planned based on the solid model of the end tooth in the adaptive software platform, and includes planning a suitable alignment measurement path.

[0012] S2: After the part position is calibrated, the adaptive software QJCAM is used to generate a program to measure the contact surface features of the end teeth that need to be rounded. The measurement results are analyzed, and the software uses a specific data processing algorithm to fit and generate an end tooth model that better matches the actual size of the product. The operation of this program requires planning a suitable measurement path for the end tooth rounding contact surface based on the new machining coordinate system. The five-axis CNC machining center runs this path program and returns the measurement point data to the software. The software automatically fits and generates the end tooth contact surface model based on this data.

[0013] S3: The original machining toolpath is mapped onto the newly generated end tooth model using the adaptive software QJCAM, generating a new adaptive chamfering toolpath. This enables precise control of the five-axis machining path, achieving high-precision, high-efficiency, and intelligent chamfering and rounding of the arc end tooth. During the mapping process, the original toolpath is adaptively adjusted based on the geometric features and machining accuracy requirements of the end tooth model to ensure smooth transition and accurate machining of the toolpath.

[0014] Preferably, in step S1, after the end gear part is clamped onto the five-axis CNC machining center, the center is first roughly found by the machine tool's built-in centering program, then the measurement program of the software is run to automatically transmit the measurement point data, and then the measurement point data is substituted into the position registration algorithm to calculate the rigid body transformation of the part from the current actual clamping position to the desired theoretical clamping position, thereby generating a new machining coordinate system.

[0015] Preferably, in step S2, the specific data processing algorithm includes, but is not limited to, least squares method and cubic spline interpolation algorithm, used to improve the fitting accuracy between the end tooth model and the actual size.

[0016] Preferably, in step S3, when generating a new adaptive rounding and chamfering toolpath, the tool feed rate and depth of cut can be automatically adjusted according to the surface curvature change of the end tooth model, while optimizing the toolpath, reducing machining time and improving the surface quality.

[0017] This invention also provides a system for rounding and chamfering arc-shaped end teeth. This system is used to implement the above-described method for rounding and chamfering arc-shaped end teeth, specifically including:

[0018] The measurement and positioning unit is used on a five-axis CNC machining center to acquire the measurement point data of the end teeth in a contact measurement manner through a high-precision probe and a measurement program planned by the adaptive software QJCAM. It automatically levels, aligns, and determines the precise angular position of the end teeth. The unit plans the alignment and measurement path based on the end tooth solid model. After the part is clamped, it first uses the machine tool's built-in centering program to roughly find the center, and then runs the measurement program to return the measurement point data. A new machining coordinate system is generated by calculating through the position registration algorithm.

[0019] The model generation unit is used to generate a program for measuring the contact surface features of the end teeth that need to be rounded after the part position is calibrated, through the adaptive software QJCAM. It analyzes the measurement results and uses a specific data processing algorithm to fit and generate an end tooth model that is more consistent with the actual size of the product. This unit plans the measurement path of the end tooth rounding contact surface based on the new machining coordinate system, receives the measurement point data returned by the machining center, and automatically fits and generates the end tooth contact surface model.

[0020] The toolpath optimization unit is used to map the original machining toolpath onto the newly generated end tooth model. Based on the geometric features and machining accuracy requirements of the end tooth model, it adaptively adjusts and generates a new rounding and chamfering toolpath to achieve precise control of the machining path. During the mapping process, it automatically adjusts the tool feed rate and depth of cut according to the surface curvature change of the end tooth model, while optimizing the toolpath.

[0021] The machining control unit is used to control the five-axis CNC machining center to perform machining according to the adaptive chamfering toolpath generated by the toolpath optimization unit, and to complete the chamfering operation of the arc end teeth. This unit has the function of real-time monitoring of machining status, and can monitor parameters such as tool wear and cutting force during the machining process, and adjust or alarm according to preset thresholds.

[0022] The data storage unit is used to store measurement point data, end tooth model data, machining toolpath data, and various monitoring data during the machining process for subsequent analysis and traceability. The stored data adopts a standardized format to facilitate data reading and sharing.

[0023] Preferably, the high-precision probe in the measurement and positioning unit has micron-level measurement accuracy and high repeatability accuracy, its measurement range covers various feature dimensions of the end teeth, and it can adapt to the measurement of end teeth with different materials and surface roughness.

[0024] Preferably, the specific data processing algorithm in the model generation unit has adjustable parameters, which can be optimized according to different end tooth product requirements to improve the accuracy and versatility of model generation.

[0025] Preferably, when generating new rounding and chamfering toolpaths, the toolpath optimization unit can preset and select different types of end tooth machining processes to meet diverse machining needs. It also has toolpath simulation and verification functions to ensure the feasibility and safety of the generated toolpaths.

[0026] Preferably, the processing control unit can communicate with external devices to achieve remote monitoring and operation, and supports multi-task processing mode, which can handle the processing tasks of multiple end tooth parts at the same time, thereby improving processing efficiency.

[0027] Preferably, the system further includes a user interface unit for operators to input machining parameters, view machining status and data. The user interface unit has an intuitive and user-friendly interface, supports graphical display of end tooth model, machining toolpath and monitoring data during machining, which facilitates operation and monitoring by operators.

[0028] As can be seen from the above technical solutions, this invention application has the following beneficial effects:

[0029] (1) High precision: By using a high-precision probe and the adaptive software QJCAM, accurate measurement data is obtained, a precise end tooth model is generated, the machining toolpath is mapped, and each link is strictly controlled, which effectively solves the problem of inaccurate machining, significantly improves product quality, and meets the high precision requirements of high-end fields.

[0030] (2) High efficiency: Adaptive processing scheme is adopted, and software automatically processes data to replace traditional processing methods, reduce manual operation, reduce labor intensity, optimize processing path, shorten processing time, and is suitable for mass production.

[0031] (3) Intelligent: The adaptive software QJCAM runs through the entire machining process to realize automatic control. From end tooth positioning to model generation and toolpath adjustment, the machining control unit monitors parameters in real time and makes intelligent adjustments to ensure stable and safe machining and improve machining reliability and stability. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the embodiments will be briefly described below. Referring to the accompanying drawings will provide a clearer understanding of the features and advantages of the present invention. The drawings are illustrative and should not be construed as limiting the present invention in any way. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort. Wherein:

[0033] Figure 1 This is a flowchart illustrating a method for rounding and chamfering the end teeth of a circular arc, as provided in the embodiment.

[0034] Figure 2 This is a block diagram of a circular arc end tooth rounding and chamfering machining system provided in the embodiment. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] To address the problems of difficult, inaccurate, and slow machining of rounded-end toothed parts in existing technologies, such as... Figure 1 As shown in the figure, an embodiment of the present invention proposes a method for rounding and chamfering the end teeth of a circular arc, the method comprising:

[0038] S1: Install a high-precision probe on a five-axis CNC machining center, and use the adaptive software QJCAM to plan and generate a measurement program for the outer circle, inner circle, and tooth end face features of the end tooth. Run the program to obtain measurement point data in a contact measurement manner, and automatically level, align, and determine the precise angular position of the end tooth based on the measurement point data, and update the original machining coordinate system. The measurement program is planned based on the solid model of the end tooth in the adaptive software platform, and includes planning a suitable alignment measurement path.

[0039] S2: After the part position is calibrated, the adaptive software QJCAM is used to generate a program to measure the contact surface features of the end teeth that need to be rounded. The measurement results are analyzed, and the software uses a specific data processing algorithm to fit and generate an end tooth model that better matches the actual size of the product. The operation of this program requires planning a suitable measurement path for the end tooth rounding contact surface based on the new machining coordinate system. The five-axis CNC machining center runs this path program and returns the measurement point data to the software. The software automatically fits and generates the end tooth contact surface model based on this data.

[0040] S3: The original machining toolpath is mapped onto the newly generated end tooth model using the adaptive software QJCAM, generating a new adaptive chamfering toolpath. This enables precise control of the five-axis machining path, achieving high-precision, high-efficiency, and intelligent chamfering and rounding of the arc end tooth. During the mapping process, the original toolpath is adaptively adjusted based on the geometric features and machining accuracy requirements of the end tooth model to ensure smooth transition and accurate machining of the toolpath.

[0041] As can be seen from the above technical solution, this invention proposes a method for rounding and chamfering the end teeth of a circular arc. The process is carried out in a five-axis CNC machining center, with a high-precision probe installed. The adaptive software QJCAM plans a measurement program based on the end tooth solid model, acquiring data through contact measurement. This data is used to level and align the end teeth, determine their angular position, and update the machining coordinate system. The software intervention ensures operational accuracy, effectively solving the problem of inaccurate machining and achieving high-precision machining. Next, after part position calibration, QJCAM generates a contact surface feature program, plans a path based on the new coordinate system, and runs it. The software analyzes the measurement results and uses a specific algorithm to fit an end tooth model that better matches the actual object. This intelligent data processing method avoids human error and improves efficiency. Finally, the original toolpath is mapped to the new model, and a new toolpath is adaptively generated based on its geometric features and accuracy requirements, achieving precise control of the machining path. Throughout the process, the software intelligently optimizes the toolpath, ensuring smooth transitions, reducing machining time, and avoiding stress concentration, achieving high-efficiency and intelligent machining suitable for machining key components such as aero-engines.

[0042] In this embodiment, firstly, a high-precision probe is installed on a five-axis CNC machining center. This probe has a precision down to the micrometer level, its measurement range comprehensively covers all feature dimensions of the end teeth, and it possesses high repeatability accuracy, adaptable to the measurement of end teeth with different materials and surface roughness. The solid model of the end teeth is imported into the adaptive software QJCAM platform, and a suitable alignment and measurement path is carefully planned within the platform based on the characteristics of the end teeth, such as the outer circle, inner circle, and tooth end face.

[0043] The end gear part is clamped onto the five-axis CNC machining center. First, the machine tool's built-in centering program is started for rough centering. Then, the measurement program planned by the software is run. At this time, the probe measures each feature point of the end gear along the planned path in a contact measurement mode, obtaining accurate measurement point data, which is automatically transmitted back to the QJCAM software. The measurement point data is substituted into the position registration algorithm. This algorithm comprehensively considers multiple factors such as the spatial distribution and geometric relationship of the measurement points to calculate the rigid body transformation between the current actual clamping position and the desired theoretical clamping position of the part, thereby generating a new machining coordinate system.

[0044] In this embodiment, based on the newly generated machining coordinate system, the measurement path of the end tooth rounding contact surface is planned in the QJCAM software. This path planning fully considers the geometry of the contact surface and its positional relationship with other features to ensure comprehensive and accurate measurement data. The five-axis CNC machining center runs the program to measure the end tooth rounding contact surface, obtains the measurement point data, and sends it back to the software.

[0045] The software employs specific data processing algorithms, such as least squares and cubic spline interpolation (these algorithms can be selected or combined according to actual needs), to analyze the measurement point data. By minimizing the sum of squared errors between the measurement points and the fitted curve or surface, it accurately generates an end tooth model that better matches the actual dimensions of the product. This model accurately reflects the actual shape of the end tooth, providing a precise geometric basis for subsequent toolpath generation.

[0046] In this embodiment, the QJCAM software maps the original machining toolpath onto the newly generated end tooth model. During the mapping process, based on the geometric characteristics of the end tooth model, such as changes in tooth surface curvature and root fillet transitions, as well as pre-set machining accuracy requirements, the original toolpath is adaptively adjusted. In areas with large tooth surface curvature, the tool feed rate is automatically reduced, and the depth of cut is refined to ensure machining accuracy; in areas with gentler curvature, machining efficiency is reasonably increased. Simultaneously, the toolpath is optimized to reduce unnecessary idle travel and tool reversal times, making tool movement smoother and more efficient, ultimately generating a new adaptive chamfering toolpath.

[0047] In this embodiment, the five-axis CNC machining center uses an adaptive chamfering toolpath to perform the machining. The machining control unit monitors the machining status in real time during the process, acquiring parameters such as tool wear and cutting force through various sensors installed on the machine tool, including force sensors and displacement sensors. When tool wear reaches a preset threshold, the machine tool is paused, prompting the operator to replace the tool. If the cutting force exceeds a safe range, the tool feed rate or depth of cut is adjusted promptly to ensure a stable and safe machining process, achieving high-precision, high-efficiency, and intelligent chamfering of the rounded tooth ends.

[0048] Example 2

[0049] like Figure 2 As shown, the present invention provides a system for rounding and chamfering arc-shaped end teeth. This system is used to implement the method for rounding and chamfering arc-shaped end teeth in Embodiment 1 above, specifically including:

[0050] The measurement and positioning unit is used on a five-axis CNC machining center to acquire the measurement point data of the end teeth in a contact measurement manner through a high-precision probe and a measurement program planned by the adaptive software QJCAM. It automatically levels, aligns, and determines the precise angular position of the end teeth. The unit plans the alignment and measurement path based on the end tooth solid model. After the part is clamped, it first uses the machine tool's built-in centering program to roughly find the center, and then runs the measurement program to return the measurement point data. A new machining coordinate system is generated by calculating through the position registration algorithm.

[0051] The model generation unit is used to generate a program for measuring the contact surface features of the end teeth that need to be rounded after the part position is calibrated, through the adaptive software QJCAM. It analyzes the measurement results and uses a specific data processing algorithm to fit and generate an end tooth model that is more consistent with the actual size of the product. This unit plans the measurement path of the end tooth rounding contact surface based on the new machining coordinate system, receives the measurement point data returned by the machining center, and automatically fits and generates the end tooth contact surface model.

[0052] The toolpath optimization unit is used to map the original machining toolpath onto the newly generated end tooth model. Based on the geometric features and machining accuracy requirements of the end tooth model, it adaptively adjusts and generates a new rounding and chamfering toolpath to achieve precise control of the machining path. During the mapping process, it automatically adjusts the tool feed rate and depth of cut according to the surface curvature change of the end tooth model, while optimizing the toolpath.

[0053] The machining control unit is used to control the five-axis CNC machining center to perform machining according to the adaptive chamfering toolpath generated by the toolpath optimization unit, and to complete the chamfering operation of the arc end teeth. This unit has the function of real-time monitoring of machining status, and can monitor parameters such as tool wear and cutting force during the machining process, and adjust or alarm according to preset thresholds.

[0054] The data storage unit is used to store measurement point data, end tooth model data, machining toolpath data, and various monitoring data during the machining process for subsequent analysis and traceability. The stored data adopts a standardized format to facilitate data reading and sharing.

[0055] Specifically, the high-precision probe in the measurement and positioning unit works in conjunction with a five-axis CNC machining center. Based on the alignment and measurement path planned on the QJCAM platform using the end tooth solid model, the probe measures the end tooth under the control of the machining center. After the part is clamped, it is first roughly centered using the machine tool's built-in centering program, and then the measurement program is run. The probe acquires the measurement point data and transmits it back. The position registration algorithm in the software uses this data to calculate rigid body transformations and generate a new machining coordinate system, providing a precise reference for subsequent machining and ensuring the accuracy and consistency of the entire machining process.

[0056] Specifically, after the machining coordinate system is updated, the model generation unit plans the measurement path for the end tooth rounding contact surface in the QJCAM software based on the new coordinate system. This optimized path can fully cover the key feature points of the contact surface. The five-axis CNC machining center measures and transmits data back according to this path. The unit uses a specific data processing algorithm (with adjustable parameters to adapt to different product requirements) to process the data, and generates an end tooth model that closely matches the actual dimensions through complex calculations and fitting, providing a reliable foundation for toolpath generation.

[0057] Specifically, when mapping the original machining toolpath to the end tooth model, the toolpath optimization unit uses intelligent algorithms to deeply analyze the model's geometric features (such as changes in tooth surface curvature and root fillet) and machining accuracy requirements (such as surface roughness and dimensional tolerances). Based on this, it dynamically adjusts the tool feed rate and depth of cut, precisely controls machining in complex curvature areas, improves efficiency in simple areas, optimizes the toolpath, reduces unnecessary movements, ensures a smooth and continuous toolpath, avoids machining vibration and impact, and generates a high-quality adaptive chamfering toolpath.

[0058] Specifically, the machining control unit is closely connected to the five-axis CNC machining center, controlling the machining process to execute according to an adaptive rounding and chamfering toolpath. It monitors the machining status by acquiring sensor data in real time, and adjusts or pauses machining promptly when tool wear or abnormal cutting forces occur, ensuring machining accuracy and stability. This unit supports multi-tasking machining modes, rationally allocating resources to improve machining efficiency. It also has communication capabilities, enabling remote monitoring and operation, facilitating management by technical personnel.

[0059] Specifically, the data storage unit uses high-capacity, high-speed storage devices to store measurement point data, end tooth model data, machining toolpath data, and machining process monitoring data (such as tool wear and cutting force change data) in a standardized format. Data is received and categorized in real time during machining, providing historical records for the current machining process, facilitating query and analysis, and serving as a reference for machining similar products. This helps optimize processes and trace quality issues.

[0060] In addition, the system includes a user interface unit, which provides operators with an intuitive and user-friendly interface. Operators can input machining parameters (such as machining process type, accuracy requirements, tool parameters, etc.) through this interface. During machining, the interface graphically displays the end gear model, machining toolpath, and monitoring data (such as a 3D view showing the model and machining area, and charts showing monitoring data trends), facilitating operators to observe machining progress, anticipate problems, monitor status, and make adjustments. It also provides operation guides, help documents, and error messages to help operators become proficient in operation.

[0061] Through the above specific embodiments, the circular arc end tooth rounding and chamfering method and system of the present invention can effectively solve the problems existing in the prior art, realize high-precision, high-efficiency, and intelligent circular arc end tooth machining, and has important application value in high-end manufacturing fields such as aero-engines. In practical applications, the parameters of each step and unit can be further optimized and adjusted according to specific processing requirements and equipment conditions to achieve the best processing effect and meet different production needs.

[0062] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0063] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0064] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The functions specified in one or more boxes. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable apparatus for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0065] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A method for processing a round arc end tooth with rounding and chamfering, characterized in that, The system is used for realizing the arc tooth chamfering and rounding machining method in any one of claims 1 to 4, and specifically comprises: S1: installing a high-precision measuring head on a five-axis numerical control machining center, generating a measuring program of an end tooth outer circle, an inner circle, and a tooth end surface feature through adaptive software QJCAM planning, running the program to obtain measurement point data in a contact measurement mode, automatically leveling and aligning the end tooth according to the measurement point data, and determining the accurate angular position, and updating the original machining coordinate system, wherein the planning of the measuring program is based on the entity model of the end tooth in the adaptive software platform, and includes planning a suitable alignment measurement path; S2: after the part position is calibrated, a program for measuring the fillet surface feature of the end tooth that needs to be rounded is generated by using the adaptive software QJCAM, the measurement result is analyzed, and a more suitable end tooth model that fits the product physical size is fitted and generated in the software through a specific data processing algorithm, the running of the program needs to plan a suitable end tooth rounding fillet surface measurement path based on the new machining coordinate system, the five-axis numerical control machining center runs the path program and returns the measurement point data to the software, and the software automatically fits and generates the end tooth fillet surface model according to the data; S3: the original machining tool path is mapped to the newly generated end tooth model through the adaptive software QJCAM, a new adaptive chamfering and rounding tool path is generated, the accurate control of the five-axis machining path is realized, and the high-precision, high-efficiency, and intelligent chamfering and rounding machining of the arc end tooth is completed, wherein the original tool path is adaptively adjusted according to the geometric characteristics of the end tooth model and the machining precision requirements in the mapping process, so as to ensure the smooth transition and accurate machining of the tool path.

2. The circular-arc end tooth rounding and chamfering method according to claim 1, wherein In step S1, after the end tooth part is clamped to the five-axis numerical control machining center, the center is first roughly found by using the program provided by the machine tool, then the measurement program of the software is run, the measurement point data is automatically returned, and then the measurement point data is substituted into the position registration algorithm to calculate the rigid transformation between the part from the current actual clamping position to the desired theoretical clamping position, and a new machining coordinate system is generated.

3. The circular-arc end tooth rounding and chamfering method according to claim 1, wherein In step S2, the specific data processing algorithm includes but is not limited to the least square method and the cubic spline interpolation algorithm, which is used to improve the fitting accuracy of the end tooth model and the physical size.

4. The circular-arc end tooth rounding and chamfering method according to claim 1, wherein In step S3, when the new adaptive chamfering and rounding tool path is generated, the feed speed and cutting depth of the tool can be automatically adjusted according to the surface curvature change of the end tooth model, the tool path is optimized, the machining time is reduced, and the machining surface quality is improved.

5. A system for processing a round-arc end tooth, comprising: The system is used for realizing the arc tooth chamfering and rounding machining method in any one of claims 1 to 4, and specifically comprises: A measurement positioning unit is used for obtaining the measurement point data of the end tooth in a contact measurement mode through the high-precision measuring head installed on the five-axis numerical control machining center and the measurement program planned by the adaptive software QJCAM, and automatically leveling, aligning, and determining the accurate angular position of the end tooth, the unit plans an alignment measurement path based on the end tooth entity model, and after the part is clamped, the center is first roughly found by using the program provided by the machine tool, then the measurement program is run to return the measurement point data, and a new machining coordinate system is generated by a position registration algorithm; The model generation unit is configured to generate a program for measuring the fillet surface feature of the end tooth to be rounded after the part position is calibrated, analyze the measurement result, and generate an end tooth model that is more consistent with the actual product size by using a specific data processing algorithm. The unit plans an end tooth fillet surface measurement path based on a new machining coordinate system, receives measurement point data returned by the machining center, and automatically generates an end tooth fillet surface model. The tool path optimization unit is configured to map the original machining tool path to the newly generated end tooth model, adaptively generate a new fillet and chamfer tool path according to the geometric features of the end tooth model and the machining accuracy requirements, and realize accurate control of the machining path. The unit automatically adjusts the feed speed and cutting depth of the tool according to the surface curvature change of the end tooth model during the mapping process, and optimizes the tool path. The machining control unit is configured to control the five-axis numerical control machining center to perform machining according to the adaptive fillet and chamfer tool path generated by the tool path optimization unit, complete the chamfering and rounding of the arc end tooth, and has the function of real-time monitoring of the machining state. The unit can monitor parameters such as tool wear and cutting force during machining, and adjust or alarm according to the preset threshold. The data storage unit is configured to store measurement point data, end tooth model data, machining tool path data, and various monitoring data during machining, for subsequent analysis and tracing. The data format stored by the unit is standardized, facilitating data reading and sharing.

6. The circular-arc tip tooth rounding and chamfering processing system according to claim 5, characterized in that, The high-precision measuring head in the measurement positioning unit has micron-level measurement accuracy and high repeatability accuracy, and can measure various feature sizes of the end tooth and adapt to end tooth measurement of different materials and surface roughness.

7. The circular-arc tip tooth rounding and chamfering processing system according to claim 5, characterized in that, The specific data processing algorithm in the model generation unit has adjustable parameters, which can be optimized and configured according to different end tooth product requirements to improve the accuracy and universality of model generation.

8. The arc tooth rounding and chamfering system of claim 5, wherein, The tool path optimization unit can preset and select different types of end tooth machining processes when generating a new fillet and chamfer tool path, to meet diversified machining requirements, and has tool path simulation and verification functions to ensure the feasibility and safety of the generated tool path.

9. The arc tooth rounding and chamfering system of claim 5, wherein, The machining control unit can communicate with external devices to realize remote monitoring and operation, and supports multi-task machining mode, which can process multiple end tooth parts simultaneously to improve machining efficiency.

10. The arc tooth rounding and chamfering system of claim 5, wherein, The system further includes a user interface unit for operators to input machining parameters, view machining status and data. The user interface unit has an intuitive and friendly operation interface, supports graphical display of end tooth models, machining tool paths, and monitoring data during machining, and is convenient for operators to operate and monitor.

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