Numerical control temperature control processing method and system based on multi-dimensional dynamic compensation
By embedding temperature sensors and finite element analysis into CNC machine tools, combined with machine learning algorithms, and dynamically adjusting feed parameters, the problem of response lag and insufficient accuracy caused by single-dimensional compensation in traditional temperature control methods is solved. Multi-dimensional dynamic compensation is achieved, improving machining accuracy and production efficiency.
Patent Information
- Application Number
- CN202511542454.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-27
- Publication Date
- 2026-01-20
AI Technical Summary
Traditional temperature control methods compensate from only one dimension, ignoring factors such as ambient temperature, spatial distribution of the processing area, and tool movement speed. This results in response lag and insufficient compensation accuracy, making it unable to adapt to dynamic thermal changes under complex working conditions, thus affecting processing accuracy and product quality.
By embedding high-precision temperature sensors in key parts of the machine tool, combined with finite element analysis and machine learning algorithms, thermal deformation can be monitored and predicted in real time, feed parameters can be dynamically adjusted, and a multi-dimensional dynamic compensation strategy can be adopted, including cooling/heating modules, coolant circulation and airflow temperature control devices, to optimize temperature control.
It achieves more precise and comprehensive temperature control, reduces scrap rate, extends tool life, improves machining accuracy and production efficiency, and reduces costs.
Smart Images
Figure CN121364684A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of numerical control temperature processing, in particular to a numerical control temperature processing method and system based on multi-dimensional dynamic compensation. BACKGROUND
[0002] In modern manufacturing, especially in the field of precision machining and high-precision manufacturing, temperature control is a key factor. Temperature not only affects the processing quality, but also can have a significant impact on tool life, material performance and the performance of the final product. Traditional temperature control methods can only compensate from a single dimension (such as temperature itself), ignoring other important factors such as ambient temperature, spatial distribution of the machining area, tool movement speed, etc. Therefore, how to achieve multi-dimensional dynamic compensation to optimize temperature control has become an important issue to improve machining precision and product quality. During the machining process of numerical control machine tools, environmental temperature fluctuations, cutting heat and heat generated by mechanical friction will cause thermal deformation of the machine tool structure and the workpiece, directly affecting the machining precision. Traditional temperature control methods rely on passive heat dissipation or fixed temperature control strategies, which cannot adapt to dynamic thermal changes under complex working conditions. In the prior art, some technologies achieve temperature control through local refrigeration or simple temperature compensation, but there are problems such as response lag and insufficient compensation accuracy. SUMMARY
[0003] To solve the above problems, the purpose of the embodiments of the present application is to provide a numerical control temperature processing method and system based on multi-dimensional dynamic compensation.
[0004] A numerical control temperature processing method based on multi-dimensional dynamic compensation, comprising:
[0005] Step 1: Obtain real-time temperature data of the machine tool target part and the workpiece surface;
[0006] Step 2: Combine the finite element analysis method to predict the deformation of the machine tool target part and the workpiece under different temperature fields;
[0007] Step 3: Based on the real-time temperature data and the deformation of the machine tool target part and the workpiece under different temperature fields, dynamically adjust the machine tool feed parameters to offset the thermal deformation error of the workpiece during the machining process.
[0008] Preferably, the machine tool target part includes a spindle, a lead screw and a worktable.
[0009] Preferably, a machine learning algorithm is introduced to optimize the machine tool feed parameters through historical machining data to improve adaptability under different working conditions.
[0010] The present application also provides a numerical control temperature processing system based on multi-dimensional dynamic compensation, comprising:
[0011] A data acquisition module is configured to acquire real-time temperature data of a target part of a machine tool and a workpiece surface.
[0012] A prediction module is configured to predict deformation of the target part of the machine tool and the workpiece under different temperature fields by combining a finite element analysis method.
[0013] A thermal error compensation module is configured to dynamically adjust a machine tool feeding parameter based on the real-time temperature data and the deformation of the target part of the machine tool and the workpiece under different temperature fields, so as to offset thermal deformation errors of the workpiece in a machining process.
[0014] The application further provides an electronic device, including a bus, a transceiver, a memory, a processor and a computer program stored in the memory and executable on the processor, the transceiver, the memory and the processor being connected through the bus, characterized in that the computer program is executed by the processor to implement the steps of the multi-dimensional dynamic compensation-based numerical control temperature control machining method.
[0015] The application further provides a computer readable storage medium, which stores a computer program, characterized in that the computer program is executed by a processor to implement the steps of the multi-dimensional dynamic compensation-based numerical control temperature control machining method.
[0016] According to the specific embodiments of the application, the following technical effects are disclosed.
[0017] The application relates to a multi-dimensional dynamic compensation-based numerical control temperature control machining method, which, compared with the prior art, not only focuses on a single dimension of temperature, but also compensates from multiple dimensions such as space, time and environmental factors, so that temperature control is more comprehensive and accurate.
[0018] In order to make the above objectives, characteristics and advantages of the application more apparent, clear and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are referred to for detailed description. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description are briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0020] Fig. 1 A multi-dimensional dynamic compensation-based numerical control temperature control machining principle diagram is provided.
[0021] Fig. 2 An active temperature control system integration block diagram is provided. DETAILED DESCRIPTION
[0022] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the system or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0023] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.
[0024] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0025] Please refer to Figs. 1-2 A numerical control temperature processing method based on multi-dimensional dynamic compensation, comprising:
[0026] Step 1: Obtain real-time temperature data of machine tool target parts and workpiece surface; the machine tool target parts include spindle, screw and workbench.
[0027] Step 2: Combine finite element analysis method to predict the deformation of machine tool target parts and workpiece under different temperature fields;
[0028] Step 3: Based on the real-time temperature data and the deformation of the machine tool target parts and the workpiece under different temperature fields, dynamically adjust the machine tool feeding parameters to offset the thermal deformation error of the workpiece in the machining process.
[0029] In step 3, a machine learning algorithm is introduced to optimize the machine tool feeding parameters through historical machining data to improve the adaptability under different working conditions.
[0030] In the embodiments of the present application, the working principle of the multi-dimensional dynamic compensation-based numerical control temperature processing method is as follows:
[0031] 1. High-precision temperature sensors are embedded in key parts of the machine tool (such as the main shaft, screw, and workbench) and the surface of the workpiece to collect temperature data in real time.
[0032] 2. A machine tool-workpiece coupled thermal deformation mathematical model is established to predict deformation under different temperature fields in combination with finite element analysis. The thermal expansion difference between the main shaft and the workbench is calculated by monitoring the temperature difference between the main shaft and the workbench to generate compensation parameters.
[0033] 3. Based on real-time temperature data and pre-built models, the machine tool feed parameters are dynamically adjusted. When the temperature of the screw is detected to rise, the system automatically corrects the feed step to offset the thermal deformation error.
[0034] In actual application, machine learning algorithms are introduced to optimize the compensation model through historical processing data to improve adaptability under different working conditions.
[0035] A closed-loop temperature control network is constructed inside the machine tool to respond to the feed parameters of the machine tool, including:
[0036] Refrigeration / heating module: semiconductor refrigeration sheet (TEC technology) is combined with electric heating wire to dynamically adjust the local temperature according to the temperature deviation.
[0037] Cooling liquid circulation system: the screw and guide rail are wrapped with a telescopic temperature control cavity, and the circulating cooling liquid is used to carry away heat, while the flow regulating valve is used to control the heat dissipation efficiency.
[0038] Airflow temperature control device: air deflectors and temperature control air outlets are arranged in the protective cover, and low-temperature air flow is output in combination with the refrigeration machine to quickly balance the internal temperature field of the machine tool.
[0039] In combination with parameters such as cutting force and feed speed, the temperature control strategy is dynamically adjusted. For example, the refrigeration power is increased during high-speed cutting to reduce the accumulation of cutting heat; and a constant temperature environment is maintained during precision machining to ensure the dimensional stability of the workpiece.
[0040] The working process is as follows:
[0041] Initialization stage:
[0042] After starting the machine tool, the initial temperature distribution is obtained through the temperature sensor, and the thermal deformation compensation model is preloaded.
[0043] During processing:
[0044] Temperature data is collected in real time, the thermal deformation compensation amount is calculated, and the feed instruction is adjusted synchronously. The temperature control system automatically starts the refrigeration / heating module according to the preset threshold to maintain the temperature of the key parts within ±0.5℃.
[0045] After processing is completed:
[0046] The system records the temperature data throughout the process, updates the compensation model parameters, and provides optimization basis for subsequent processing.
[0047] The present application can reduce thread cutting waste, reduce individual unstable waste caused by temperature fluctuations by 30 per month, calculate 700 yuan per coupling blank, save 21,000 yuan per month, in addition, save about 10,000 yuan of tool consumption per year, and create economic value of 262,000 yuan per year. Multi-dimensional dynamic compensation: this method not only focuses on the single dimension of temperature, but also compensates from multiple dimensions such as space, time and environmental factors. This makes temperature control more comprehensive and accurate.
[0048] The beneficial effects of the present application are as follows:
[0049] 1. Real-time monitoring and compensation: real-time acquisition of temperature data through sensor network, combined with intelligent algorithm for dynamic adjustment, to ensure that the temperature of each processing point meets the requirements and improve the quality of workpieces.
[0050] 2. Improve processing precision and reduce waste rate: this method can monitor the temperature changes of key parts of the machine tool in real time through temperature sensors, calculate the error amount combined with the thermal deformation model, and dynamically correct the coordinate offset or tool path by the numerical control system, so as to offset the influence of thermal deformation on processing precision. This can make the processed parts more in line with the standard, reduce the waste caused by insufficient precision, reduce the waste of raw materials, and directly save production cost. Improve production efficiency and increase capacity: multi-dimensional dynamic compensation can reduce the precision drift of the machine tool caused by factors such as thermal deformation, so that the machine tool can run stably at high speed, shorten the processing time of individual parts. At the same time, the number of shutdown adjustments caused by precision problems is reduced, the equipment utilization rate is improved, and the production capacity is increased, which brings more sales revenue to the enterprise.
[0051] 3. Prolong the life of the tool and reduce the cost of the tool: stable processing conditions and accurate tool path can reduce abnormal wear and impact between the tool and the workpiece, prolong the service life of the tool. The frequency of replacing the tool is reduced, the cost of purchasing the tool is reduced, and the time spent on replacing the tool is also reduced, which further improves the production efficiency.
[0052] The present application also provides a numerical control temperature processing system based on multi-dimensional dynamic compensation, comprising:
[0053] A data acquisition module for acquiring real-time temperature data of machine tool target parts and workpiece surfaces;
[0054] A prediction module for predicting the deformation amount of machine tool target parts and workpieces under different temperature fields combined with finite element analysis method;
[0055] The thermal error compensation module is used for dynamically adjusting the machine tool feeding parameters based on the real-time temperature data and deformation amounts of the machine tool target position and the workpiece under different temperature fields, so as to offset the thermal deformation error of the workpiece in the machining process.
[0056] Compared with the prior art, the beneficial effects of the numerical control temperature processing system based on multi-dimensional dynamic compensation provided by the present application are the same as those of the numerical control temperature processing method based on multi-dimensional dynamic compensation described in the above technical solution, and will not be repeated here.
[0057] The present application also provides an electronic device, comprising a bus, a transceiver, a memory, a processor and a computer program stored in the memory and executable on the processor, the transceiver, the memory and the processor being connected through the bus, and the computer program being executed by the processor to realize the steps of the numerical control temperature processing method based on multi-dimensional dynamic compensation described above.
[0058] The present application also provides a computer readable storage medium having a computer program stored thereon, the computer program being executed by a processor to realize the steps of the numerical control temperature processing method based on multi-dimensional dynamic compensation described above.
[0059] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or alternative technical solutions within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A multi-dimension dynamic compensation based numerical control temperature processing method, characterized in that, The method comprises the following steps: Step 1: acquiring real-time temperature data of a machine tool target part and a workpiece surface; Step 2: predicting deformation of the machine tool target part and the workpiece under different temperature fields by combining a finite element analysis method; Step 3: dynamically adjusting machine tool feeding parameters based on the real-time temperature data and the deformation of the machine tool target part and the workpiece under different temperature fields, so as to offset thermal deformation errors of the workpiece in a machining process.
2. The multi-dimension dynamic compensation based numerical control temperature processing method according to claim 1, wherein, The machine tool target part comprises a spindle, a screw rod and a worktable.
3. The multi-dimension dynamic compensation based numerical control temperature processing method according to claim 1, wherein, Machine learning algorithms are introduced to optimize machine tool feeding parameters through historical machining data, and to improve adaptability under different working conditions.
4. A multi-dimension dynamic compensation based numerical control temperature processing system, characterized in that, The method comprises the following steps: a data acquisition module for acquiring real-time temperature data of a machine tool target part and a workpiece surface; a prediction module for predicting deformation of the machine tool target part and the workpiece under different temperature fields by combining a finite element analysis method; a thermal error compensation module for dynamically adjusting machine tool feeding parameters based on the real-time temperature data and the deformation of the machine tool target part and the workpiece under different temperature fields, so as to offset thermal deformation errors of the workpiece in a machining process.
5. The multi-dimension dynamic compensation based NC temperature control machining system according to claim 4, wherein, The machine tool target part comprises a spindle, a screw rod and a worktable.
6. The multi-dimension dynamic compensation based NC temperature control machining system according to claim 4, wherein, Machine learning algorithms are introduced to optimize machine tool feeding parameters through historical machining data, and to improve adaptability under different working conditions.
7. An electronic device comprising a bus, a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the transceiver, the memory and the processor being connected by the bus, characterized in that, The computer program is executed by the processor to implement the steps of the multi-dimensional dynamic compensation-based numerical control temperature control machining method according to any one of claims 1-3.
8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the multi-dimensional dynamic compensation-based numerical control temperature control machining method according to any one of claims 1-3.