Impeller machining method, system and equipment based on real-time compensation and medium

Abstract

The invention belongs to the technical field of impeller machining, and provides an impeller machining method, system and device based on real-time compensation and a medium, and the impeller machining method comprises the steps that firstly, a standard impeller model is constructed according to the specification of a standard impeller; scanning the semi-finished impeller to form a semi-finished impeller model; secondly, the total machining amount is obtained based on the standard impeller model and the semi-finished impeller model, n machining cycles are determined according to the total machining amount, an impeller prediction model corresponding to each machining cycle is constructed, and n is larger than or equal to 3; then, n machining cycles are executed, and a finished impeller is obtained after all the n machining cycles are executed; and finally, the finished impeller is subjected to quality inspection. According to the method, the strategy that the deviation of the machining period is monitored on line, and the machining amount of the next period is adjusted in real time to compensate the deviation is adopted, the impeller machined through the method is closest to a standard impeller model, and the precision and consistency of the impeller are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of impeller processing, and in particular relates to an impeller processing method, system, equipment and medium based on real-time compensation. Background Art

[0002] The impeller is the core component of centrifugal pumps, centrifugal fans and other equipment. It is the heart of centrifugal equipment, the key part to achieve equipment performance, and the source of vibration. Whether its profile accuracy meets the requirements of the drawings is the key to impeller manufacturing. The impeller of a centrifugal pump is traditionally formed by casting technology, and the impeller blade profile is quite different from the drawings. In recent years, with the popularization of machining centers, in order to narrow the gap between the impeller profile and the drawings, machining centers are used to process impeller blades. However, even when precision machining centers are used to process blades, deformation problems may occur, such as changes in ambient temperature, tool wear, stress deformation, etc.

[0003] Therefore, during the machining process, due to the influence of cutting temperature and cutting force, the blades will produce thermal deformation and stress deformation, resulting in differences between the machining results and the design, and unable to meet the requirements of equipment with high precision requirements for impeller blades. Especially for large impellers, high speeds or equipment with high requirements for vibration and noise, the quality of impeller blades is directly related to the realization of impeller performance, equipment vibration and noise indicators and service life. Summary of the invention

[0004] In order to solve the problems in the background technology, the present invention proposes an impeller processing method, system, equipment and medium based on real-time compensation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A method for machining an impeller based on real-time compensation comprises the following steps: According to the specifications of the standard impeller, a standard impeller model is constructed; Scanning the semi-finished impeller to form a semi-finished impeller model; The total processing volume is obtained based on the standard impeller model and the semi-finished impeller model, and n processing cycles are determined according to the total processing volume, and the impeller prediction model corresponding to each processing cycle is constructed, where n≥3; Execute n processing cycles, each of which includes processing steps and adjustment steps: Processing steps: Processing the semi-finished impeller; Adjustment steps: Compare the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing volume of this processing cycle has deviations; if there are no deviations, enter the next processing cycle; otherwise, compensate the processing volume of the next processing in real time before entering the next processing cycle; After all n processing cycles are executed, the finished impeller is obtained; Conduct quality inspection on finished impellers.

[0006] Preferably, the total processing amount is obtained based on the standard impeller model and the semi-finished impeller model, and n processing cycles are determined according to the total processing amount, and an impeller prediction model corresponding to each processing cycle is constructed, including the following steps: The number of processing cycles n required from the semi-finished impeller to the finished impeller is set according to the total processing volume; Determine the target processing volume for each processing cycle; Construct the corresponding impeller prediction model according to the target processing volume.

[0007] Preferably, comparing the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing amount of this processing cycle deviates comprises the following steps: Compare the processed semi-finished impeller with the impeller prediction model to observe whether a positive deviation area and / or a negative deviation area is displayed on the impeller prediction model, wherein the positive deviation area is an area with excess material and the negative deviation area is an area with insufficient material; If the positive deviation area and / or negative deviation area is displayed, the actual processing volume of this processing cycle has deviations, otherwise there are no deviations.

[0008] Preferably, the processing amount of the next processing is compensated in real time before entering the next processing cycle, which includes the following steps: Increase the feed rate in the positive deviation area; Reduce the feed rate in the negative deviation area; Enter the next processing cycle.

[0009] Preferably, quality inspection of the finished impeller comprises the following steps: Scan the finished impeller to obtain the finished impeller model; The finished impeller model is compared with the standard impeller model to determine whether the error meets the requirements. If so, the finished impeller is qualified, otherwise, the finished impeller is unqualified.

[0010] Preferably, before constructing the semi-finished impeller model, the following steps are also included: Rough turning the raw material of the semi-finished impeller to obtain the semi-finished impeller; Clamp the semi-finished impeller.

[0011] An impeller machining system based on real-time compensation, comprising: A first construction unit is used to construct a standard impeller model according to the specifications of the standard impeller; A second construction unit is used to scan the semi-finished impeller and construct a semi-finished impeller model; A third construction unit is used to obtain a total processing amount based on a standard impeller model and a semi-finished impeller model, and determine n processing cycles according to the total processing amount and construct an impeller prediction model corresponding to each processing cycle; The execution unit is used to execute n processing cycles, including the processing module and the adjustment module: The processing module is used to process the semi-finished impeller; The adjustment module is used to compare the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing volume of this processing cycle has deviations; if no deviation occurs, the next processing cycle is entered; otherwise, the processing volume of the next processing is compensated in real time before entering the next processing cycle; A picking unit is used to obtain the finished impeller after n processing cycles are all executed; Quality inspection unit, used to inspect the quality of finished impellers.

[0012] Preferably, the third building unit comprises: An analysis module, used to set the number n of processing cycles required from a semi-finished impeller to a finished impeller according to the total processing volume; Building blocks for determining the target machining volume for each machining cycle.

[0013] Preferably, the adjustment module includes: A comparison submodule is used to compare the processed semi-finished impeller with the impeller prediction model to observe whether a positive deviation area and / or a negative deviation area is displayed on the impeller prediction model, wherein the positive deviation area is an area with excess material and the negative deviation area is an area with insufficient material; The judgment submodule, if the positive deviation area and / or the negative deviation area is displayed, then the actual processing amount of this processing cycle has a deviation, otherwise there is no deviation; The adjustment submodule is used to increase the feed rate in the positive deviation area and reduce the feed rate in the negative deviation area.

[0014] Preferably, the quality inspection unit comprises: The first quality inspection module is used to scan the finished impeller to obtain a finished impeller model; The second quality inspection module is used to compare the finished impeller model with the standard impeller model to determine whether the error meets the requirements. If the requirements are met, the finished impeller is qualified, otherwise the finished impeller is unqualified.

[0015] A device comprising: Memory, used to store computer programs; The processor is used to implement the above-mentioned impeller processing method based on real-time compensation when executing the computer program stored in the memory.

[0016] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the above-mentioned impeller processing method based on real-time compensation.

[0017] A computer program product comprises a computer program / instruction, wherein when the computer program / instruction is executed by a processor, the impeller machining method based on real-time compensation is realized.

[0018] Beneficial effects of the present invention: The method of the present invention adopts a strategy of online monitoring of the deviation of the current processing cycle and adjusting the processing amount of the next cycle in real time to compensate for the deviation. It performs three-dimensional measurement on the workpiece, forms a measured three-dimensional graph, and compares it with the three-dimensional graph of the processing step. If there is a deviation, the processing amount of the next step is automatically adjusted, thereby minimizing the deviation between the actual object and the impeller prediction model as much as possible. The actual object processed by this method is real and closest to the standard impeller model. This method can effectively improve the accuracy and consistency of the impeller, and meet the needs of large impellers, high speeds, or equipment with high requirements on vibration and noise.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A flow chart of an impeller processing method based on real-time compensation of the present invention is shown; Figure 2 A flow chart showing roughing, semi-finishing and finishing of the present invention is shown; Figure 3 A structural schematic diagram of an impeller processing device based on real-time compensation of the present invention is shown; Figure 4 A framework diagram of an impeller processing system based on real-time compensation of the present invention is shown.

[0022] In the figure: 1. workbench; 2. clamping device; 3. processing tool; 4. real-time measuring device; 5. controller; 6. program module; 7. impeller workpiece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1 As shown, a method for processing an impeller based on real-time compensation includes the following steps: S1: Construct a standard impeller model according to the specifications of the standard impeller.

[0025] S2: Scan the semi-finished impeller to form a semi-finished impeller model.

[0026] S3: The total processing volume is obtained based on the standard impeller model and the semi-finished impeller model, and n processing cycles are determined according to the total processing volume and an impeller prediction model corresponding to each processing cycle is constructed, where n≥3.

[0027] S4: Execute n processing cycles, each processing cycle includes the following steps: S401: Processing the semi-finished impeller.

[0028] S402: Compare the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing volume of this processing cycle has deviation; if no deviation occurs, enter the next processing cycle; otherwise, compensate the processing volume of the next processing in real time before entering the next processing cycle; S5: After all n processing cycles are executed, the finished impeller is obtained; S6: Conduct quality inspection on the finished impeller.

[0029] It should be noted that the above method realizes the establishment of digital processing benchmark by combining the construction of standard model with real-time scanning; adopts phased processing and closed-loop control (processing-detection-real-time dynamic compensation) mechanism to effectively disperse processing stress and correct deviation in real time, and combines the dual guarantees of process monitoring and terminal quality inspection to ensure processing accuracy while optimizing resource efficiency, which is suitable for the processing and manufacturing of high-precision impellers.

[0030] As a preferred solution, before constructing the semi-finished impeller model, the raw material of the semi-finished impeller needs to be roughly turned to obtain the semi-finished impeller, and then the semi-finished impeller is clamped.

[0031] Specifically, in S1, professional software is used to perform precise 3D modeling based on the impeller design specifications. This process needs to take into account every detail of the impeller, including the shape of the blades, the size of the flow channel, and the profile of the hub, to ensure that the model can accurately reflect the geometric characteristics of the impeller.

[0032] Specifically, in S2, a stereo camera system using a three-dimensional scanner may be used to accurately scan the semi-finished impeller to construct a corresponding semi-finished impeller model.

[0033] Specifically, in S3, the impeller processing cycle can be accurately divided into at least three, corresponding to the roughing, semi-finishing and finishing stages, and the corresponding process parameters are planned respectively, and the corresponding impeller prediction models are established. These impeller prediction models will be used for subsequent online measurement and comparative analysis to ensure that each step in the processing process can be carried out accurately according to the predetermined path. The above modeling process must accurately reproduce the geometric features of the impeller, including the shape of the blades, the scale of the flow channel, the shape of the hub and other complex curved surface structures. The accurate reproduction of these features is crucial to ensure the performance and quality of the impeller.

[0034] Specifically, S3 includes the following steps: S301: The number of processing cycles n required from a semi-finished impeller to a finished impeller is set according to the total processing volume. S302: The target processing volume of each processing cycle is determined. S303: The corresponding impeller prediction model is constructed according to the target processing volume.

[0035] It should be noted that in S3, multiple cutting operations (corresponding to multiple processing cycles) are required in the processing from semi-finished impellers to finished impellers. After each cutting operation, the system will generate a corresponding impeller prediction model. Then, based on the planned impeller roughing, semi-finishing and finishing impeller prediction models, combined with the characteristics of the milling machining center, a detailed machining process flow is formulated. This process needs to take into account the performance of the machine tool, the type and model of the tool, the setting of the cutting parameters, and the planning of the tool path and the sequence of work steps. After that, professional software is used for programming, including selecting the type and model of the cutting tool, setting the cutting parameters, and planning the tool path and the sequence of work steps. After programming is completed, simulation checks are performed and errors are corrected to ensure the correctness of the program and the efficiency of processing.

[0036] Specifically, S402 includes the following steps: S4021: Compare the semi-finished impeller after processing with the impeller prediction model, and observe whether the positive deviation area and / or negative deviation area are displayed on the impeller prediction model. The positive deviation area is the area with excess material, and the negative deviation area is the area with insufficient material. S4022: If the positive deviation area and / or negative deviation area are displayed, the actual processing volume of this processing cycle has deviations, otherwise there are no deviations. S4023: If the actual processing volume of this processing cycle has no deviations, then enter the next processing cycle; otherwise, increase the feed amount in the positive deviation area and reduce the feed amount in the negative deviation area, and finally enter the next processing cycle.

[0037] For example, S4021: In the impeller finishing of a certain CNC machine tool, after the first round of processing, the operator obtains the 3D morphology data of the semi-finished impeller through a high-precision optical scanner and compares it with the impeller prediction model (the ideal geometric model generated based on process simulation). The model displays the deviation through the color difference map: positive deviation area (red mark, +0.12mm): local material accumulation on the working surface of the blade, indicating excess material; negative deviation area (blue mark, -0.08mm): the blade root fillet does not reach the designed thickness, indicating insufficient material.

[0038] Step S4022, deviation exists: because positive and negative deviation areas appear at the same time, it is determined that the actual processing volume of this processing cycle deviates from the expectation; no deviation: if the model shows that the deviation value of the entire area is within ±0.02mm (green mark), it is determined that the processing volume meets the requirements.

[0039] Step S4023: Increase the feed rate in the positive deviation area (excess material): increase the radial cutting depth of the ball end mill from 0.15mm to 0.18mm, and increase the feed speed (f) from 120mm / min to 150mm / min to efficiently remove excess material; optimize the tool path: adopt the spiral interpolation strategy to reduce the material residue caused by cutting vibration. Reduce the feed rate in the negative deviation area (insufficient material): reduce the axial cutting depth from 0.30mm to 0.25mm to avoid further material shortage caused by excessive cutting; enable the compensation mechanism: generate a reverse offset tool path in the CAM software, and reserve a 0.05mm margin for subsequent welding or polishing.

[0040] If there is no deviation in the detection of a certain cycle (e.g., the whole area is green after the third cycle), the system directly enters the fourth processing cycle and continues processing using the current parameters, while recording the stable parameter combination for batch production of similar impellers.

[0041] Specifically, S6 includes the following steps: S601: Scan the finished impeller to obtain a finished impeller model; S602: Compare the finished impeller model with the standard impeller model to determine whether the error meets the requirements. If so, the finished impeller is qualified; otherwise, the finished impeller is unqualified.

[0042] It should be noted that in S6, an online 3D scanner stereo camera system can be used to measure the workpiece online, and the measurement data can be used to form a finished impeller model in the controller. At this time, the finished impeller model should be basically consistent with the standard impeller model. This process ensures the quality of the final product and verifies the accuracy and reliability of the entire processing process.

[0043] like Figure 2 As shown in the figure, when n=3, the three machining cycles are rough machining, semi-finishing and finishing, and the specific process is as follows: First, the raw material is rough-turned to obtain a semi-finished impeller, and then the semi-finished impeller is clamped and aligned by the machining center, followed by rough machining (the machining program is obtained through programming), and then the rough-machined semi-finished impeller is compared with the three-dimensional standard model of the working step (impeller prediction model). If the semi-finished impeller is the same as the three-dimensional standard model of the working step, it enters the semi-finishing step. If they are not the same, the deviation repair program is started to compensate for the deviation, and then the semi-finishing step is entered. The semi-finished impeller is processed by semi-finishing, and then compared with the three-dimensional standard model of the working step (impeller prediction model). If the semi-finished impeller is the same as the three-dimensional standard model of the working step, it enters the finishing step. If they are not the same, the deviation repair program is started to compensate for the deviation, and then the finishing step is entered. The final inspection is carried out after the finishing step is completed.

[0044] like Figure 3 As shown, it is a simplified diagram of an impeller processing device based on real-time compensation, which includes a workbench 1, a clamping device 2, a processing tool 3, a real-time measuring device 4, a controller 5 and a program module 6. The workbench 1 is located at the bottom, and the clamping device 2 is installed on the surface of the workbench 1. The clamping device 2 can clamp the impeller workpiece 7 (such as the raw material of the impeller, the semi-finished impeller and the finished impeller). The real-time measuring device 4 and the program module 6 are both connected to the controller 5. The controller 5 can send instructions to the real-time measuring device 4 to let the real-time measuring device 4 collect the image of the impeller workpiece 7, and then the controller 5 can construct a real-time model of the impeller workpiece 7 after receiving the image. The program module 6 can be built in the controller 5, and the controller 5 can modify the program in the program module 6 in real time according to the processing situation of the impeller workpiece 7, so as to ensure the quality of the final product.

[0045] like Figure 4As shown, an impeller processing system based on real-time compensation includes a first construction unit, a second construction unit, a third construction unit, an execution unit, a pickup unit and a quality inspection unit. The first construction unit is used to construct a standard impeller model according to the specifications of the standard impeller; the second construction unit is used to scan the semi-finished impeller and construct the semi-finished impeller model; the third construction unit is used to obtain the total processing volume based on the standard impeller model and the semi-finished impeller model, and determine n processing cycles according to the total processing volume and construct an impeller prediction model corresponding to each processing cycle; The execution unit is used to execute n processing cycles, including a processing module and an adjustment module. The processing module is used to process the semi-finished impeller. The adjustment module is used to compare the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing volume of this processing cycle has deviations; if there is no deviation, enter the next processing cycle, otherwise, compensate the processing volume of the next processing in real time before entering the next processing cycle.

[0046] The picking unit is used to obtain the finished impeller after all n processing cycles are executed. The quality inspection unit is used to perform quality inspection on the finished impeller.

[0047] Specifically, the third construction unit includes an analysis module and a construction module. The analysis module is used to set the number of processing cycles n required from the semi-finished impeller to the finished impeller according to the total processing volume; the construction module is used to determine the target processing volume of each processing cycle.

[0048] Specifically, the adjustment module includes a comparison submodule, a judgment submodule and an adjustment submodule. The comparison submodule is used to compare the semi-finished impeller after processing with the impeller prediction model, and observe whether the positive deviation area and / or the negative deviation area are displayed on the impeller prediction model. The positive deviation indicates that the impeller material is excessive, and the negative deviation indicates that the impeller material is insufficient. The judgment submodule is used to judge that the actual processing amount of this processing cycle has a deviation when the positive deviation area and / or the negative deviation area are displayed, otherwise there is no deviation. The adjustment submodule is used to increase the feed amount in the positive deviation area and reduce the feed amount in the negative deviation area.

[0049] Specifically, the quality inspection unit includes a first quality inspection module and a second quality inspection module. The first quality inspection module is used to scan the finished impeller to obtain a finished impeller model. The second quality inspection module is used to compare the finished impeller model with the standard impeller model to determine whether the error meets the requirements. If the requirements are met, the finished impeller is qualified, otherwise the finished impeller is unqualified.

[0050] It should be noted that, for the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The various units and modules of the impeller processing system based on real-time compensation are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, the specific names of each unit are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

[0051] A device comprising: Memory, used to store computer programs; The processor is used to execute the program stored in the memory to achieve Figure 1 An impeller machining method based on real-time compensation is proposed.

[0052] It should be noted that the memory may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory.

[0053] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0054] A computer-readable storage medium having a computer program stored thereon, which when executed by a processor implements Figure 1 An impeller machining method based on real-time compensation is proposed.

[0055] It should be noted that the computer-readable storage medium may be included in the device / apparatus described in the above embodiment; or it may exist independently without being assembled into the device / apparatus. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, the test method for induced attenuation of photovoltaic modules according to the embodiment of the present invention is implemented.

[0056] According to an embodiment of the present invention, the computer-readable storage medium may be a non-volatile computer-readable storage medium, for example, may include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present invention, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, apparatus, or device.

[0057] A computer program product comprising a computer program / instructions which, when executed by a processor, implements Figure 1 An impeller machining method based on real-time compensation is proposed.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An impeller machining method based on real-time compensation, characterized in that: The following steps are involved: According to the specifications of the standard impeller, a standard impeller model is constructed; Scanning the semi-finished impeller to form a semi-finished impeller model; The total processing volume is obtained based on the standard impeller model and the semi-finished impeller model, and n processing cycles are determined according to the total processing volume, and the impeller prediction model corresponding to each processing cycle is constructed, where n≥3; Execute n processing cycles, each of which includes processing steps and adjustment steps: Processing steps: Processing the semi-finished impeller; Adjustment steps: Compare the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing volume of this processing cycle has deviations; if there are no deviations, enter the next processing cycle; otherwise, compensate the processing volume of the next processing in real time before entering the next processing cycle; After all n processing cycles are executed, the finished impeller is obtained; Conduct quality inspection on finished impellers.

2. The impeller machining method based on real-time compensation according to claim 1, characterized in that: The total processing volume is obtained based on the standard impeller model and the semi-finished impeller model, and n processing cycles are determined according to the total processing volume, and an impeller prediction model corresponding to each processing cycle is constructed, including the following steps: The number of processing cycles n required from the semi-finished impeller to the finished impeller is set according to the total processing volume; Determine the target processing volume for each processing cycle; Construct the corresponding impeller prediction model according to the target processing volume.

3. The impeller machining method based on real-time compensation according to claim 2, characterized in that: Comparing the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing volume of this processing cycle deviates includes the following steps: Compare the processed semi-finished impeller with the impeller prediction model to observe whether a positive deviation area and / or a negative deviation area is displayed on the impeller prediction model, wherein the positive deviation area is an area with excess material, and the negative deviation area is an area with insufficient material; If the positive deviation area and / or negative deviation area is displayed, the actual processing volume of this processing cycle has deviations, otherwise there are no deviations.

4. The impeller machining method based on real-time compensation according to claim 2, characterized in that: After real-time compensation of the processing volume of the next processing, the next processing cycle is entered, including the following steps: Increase the feed rate in the positive deviation area; Reduce the feed rate in the negative deviation area; Enter the next processing cycle.

5. The impeller machining method based on real-time compensation according to claim 1, characterized in that: The quality inspection of the finished impeller includes the following steps: Scan the finished impeller to obtain the finished impeller model; The finished impeller model is compared with the standard impeller model to determine whether the error meets the requirements. If so, the finished impeller is qualified, otherwise, the finished impeller is unqualified.

6. The impeller machining method based on real-time compensation according to claim 1, characterized in that: Before entering the construction of the semi-finished impeller model, the following steps are also included: Rough turning the raw material of the semi-finished impeller to obtain the semi-finished impeller; Clamp the semi-finished impeller.

7. An impeller processing system based on real-time compensation, characterized in that: include: A first construction unit is used to construct a standard impeller model according to the specifications of the standard impeller; A second construction unit is used to scan the semi-finished impeller and construct a semi-finished impeller model; A third construction unit is used to obtain a total processing amount based on a standard impeller model and a semi-finished impeller model, and determine n processing cycles according to the total processing amount and construct an impeller prediction model corresponding to each processing cycle; The execution unit is used to execute n processing cycles, including the processing module and the adjustment module: The processing module is used to process the semi-finished impeller; The adjustment module is used to compare the processed semi-finished impeller with the impeller prediction model to determine whether the actual processing volume of this processing cycle has deviations; if no deviation occurs, the next processing cycle is entered; otherwise, the processing volume of the next processing is compensated in real time before entering the next processing cycle; A picking unit is used to obtain the finished impeller after n processing cycles are all executed; Quality inspection unit, used to inspect the quality of finished impellers.

8. The impeller processing system based on real-time compensation according to claim 7, characterized in that: The third building block comprises: An analysis module, used to set the number n of processing cycles required from a semi-finished impeller to a finished impeller according to the total processing volume; Building blocks for determining the target machining volume for each machining cycle.

9. The impeller processing system based on real-time compensation according to claim 7, characterized in that: The adjustment module comprises: A comparison submodule is used to compare the processed semi-finished impeller with the impeller prediction model to observe whether a positive deviation area and / or a negative deviation area is displayed on the impeller prediction model, wherein the positive deviation area is an area with excess material and the negative deviation area is an area with insufficient material; The judgment submodule, if the positive deviation area and / or the negative deviation area is displayed, then the actual processing amount of this processing cycle has a deviation, otherwise there is no deviation; The adjustment submodule is used to increase the feed rate in the positive deviation area and reduce the feed rate in the negative deviation area.

10. The impeller machining system based on real-time compensation according to claim 7, characterized in that: The quality inspection unit comprises: The first quality inspection module is used to scan the finished impeller to obtain a finished impeller model; The second quality inspection module is used to compare the finished impeller model with the standard impeller model to determine whether the error meets the requirements. If the requirements are met, the finished impeller is qualified, otherwise the finished impeller is unqualified.

11. A device, characterized in that: include: Memory, used to store computer programs; The processor is used to implement the impeller processing method based on real-time compensation as described in any one of claims 1 to 6 when executing the computer program stored in the memory.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the impeller processing method based on real-time compensation described in any one of claims 1 to 6 is implemented.

13. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, an impeller processing method based on real-time compensation as described in any one of claims 1 to 6 is implemented.

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