A cutting temperature monitoring device and method

Abstract

This application discloses a cutting temperature monitoring device and method, relating to the field of online monitoring technology for CNC machining. The device includes a temperature sensing module, a signal processing and data communication module, and a host computer monitoring module. Both the temperature sensing module and the signal processing and data communication module are fixed to a basic tool holder. The temperature sensing module collects the hot-end temperature signal of the cutting area at the tool tip. The signal processing and data communication module conditions and converts the hot-end temperature signal from analog to digital to obtain hot-end temperature data. Based on the cold-end ambient temperature data, it performs temperature compensation processing on the hot-end temperature data to calculate the actual cutting temperature after temperature compensation. The host computer monitoring module provides real-time visualization of the actual cutting temperature after temperature compensation. This application can achieve accurate, real-time, and stable monitoring of the temperature in the tool cutting area.

Description

Technical Field

[0001] This application relates to the field of online monitoring technology for CNC machining, and in particular to a cutting temperature monitoring device and method. Background Technology

[0002] In high-speed cutting, machining of difficult-to-machine materials, and precision manufacturing, cutting temperature directly affects tool life, machining accuracy, and workpiece surface quality. Excessively high temperatures or large temperature fluctuations can exacerbate tool wear, cause workpiece burns, and lead to residual stress concentration. Therefore, accurate, real-time, and online monitoring of the tool cutting zone temperature is a key aspect of intelligent manufacturing process optimization and quality control.

[0003] Existing cutting temperature measurement methods are mainly divided into contact and non-contact methods. Non-contact methods, such as infrared thermometry, are easily affected by cutting fluid, smoke, chips, and surface reflectivity, making it difficult to obtain the true temperature of the contact area and achieve stable monitoring. Traditional contact methods mostly use external thermocouples or resistance temperature detectors (RTDs). Because the sensors cannot dynamically conform to the cutting area, the temperature measurement point deviates from the heat source, making it difficult to accurately reflect the tool's operating temperature and achieve precise, real-time, and stable monitoring of the tool's cutting area temperature. Therefore, there is an urgent need for a cutting temperature monitoring device and method that can accurately, in real-time, and stably monitor the temperature of the tool's cutting area to solve the above-mentioned technical problems of existing cutting temperature measurement methods. Summary of the Invention

[0004] The purpose of this application is to provide a cutting temperature monitoring device and method that can achieve accurate, real-time, and stable monitoring of the temperature in the cutting area of ​​the tool.

[0005] To achieve the above objectives, this application provides the following solution.

[0006] In a first aspect, this application provides a cutting temperature monitoring device, which includes: a temperature sensing module, a signal processing and data communication module, and a host computer monitoring module.

[0007] Both the temperature sensing module and the signal processing and data communication module are fixed on the basic tool holder, and the signal processing and data communication module is electrically connected to the temperature sensing module. The host computer monitoring module is connected to the signal processing and data communication module.

[0008] The temperature sensing module is used to collect the temperature signal of the hot end of the cutting area at the end of the tool.

[0009] The signal processing and data communication module is used to condition and perform analog-to-digital conversion on the hot end temperature signal to obtain hot end temperature data; and to acquire cold end ambient temperature data, and perform temperature compensation processing on the hot end temperature data based on the cold end ambient temperature data to calculate the actual cutting temperature after temperature compensation.

[0010] The host computer monitoring module is used to display the actual cutting temperature after temperature compensation in real time.

[0011] Optionally, the temperature sensing module is a thermocouple sensor, which includes a sensing end and an output end. The sensing end extends to the cutting area at the end of the tool through a hole drilled inside the tool or an existing internal cooling hole in the tool. The sensing end is used to collect the hot end temperature of the cutting area at the end of the tool, and the output end is used to output an analog voltage signal corresponding to the hot end temperature.

[0012] Optionally, the signal processing and data communication module includes: a signal processing submodule, a sampling chip, and a data communication submodule.

[0013] The input terminal of the signal processing submodule is electrically connected to the output terminal of the thermocouple sensor, the output terminal of the signal processing submodule is connected to the input terminal of the sampling chip, the output terminal of the sampling chip is connected to the input terminal of the data communication submodule, and the output terminal of the data communication submodule is wirelessly connected to the input terminal of the host computer monitoring module.

[0014] The signal processing submodule is used to filter and amplify the analog voltage signal output by the thermocouple sensor to obtain a filtered and amplified analog signal.

[0015] The sampling chip is used to convert the filtered and amplified analog signal into a digital hot-end temperature signal and to acquire the cold-end ambient temperature signal.

[0016] The data communication submodule is used to perform temperature compensation processing based on the digital hot end temperature signal and the cold end ambient temperature signal, calculate the actual cutting temperature after temperature compensation, and wirelessly send the actual cutting temperature after temperature compensation to the host computer monitoring module.

[0017] Optionally, the sampling chip has a built-in temperature sensor, which is located away from the cutting area at the end of the tool. The temperature sensor is used to collect the ambient temperature signal of the cold end at the location away from the cutting area at the end of the tool.

[0018] Optionally, the data communication submodule includes a computing unit and a wireless communication unit.

[0019] The input terminal of the computing unit is connected to the output terminal of the sampling chip, and the output terminal of the computing unit is wirelessly connected to the input terminal of the host computer monitoring module via the wireless communication unit.

[0020] The calculation unit is used to perform temperature compensation processing based on the digital hot end temperature signal and the cold end ambient temperature signal to calculate the actual cutting temperature after temperature compensation.

[0021] The wireless communication unit is used to wirelessly transmit the actual cutting temperature after temperature compensation to the host computer monitoring module.

[0022] Optionally, the calculation formula used by the calculation unit when performing temperature compensation processing is as follows.

[0023] .

[0024] in, This is the actual cutting temperature after temperature compensation. This refers to the hot end temperature. This refers to the cold end ambient temperature.

[0025] Optionally, the wireless communication unit adopts at least one of the following wireless communication methods: radio frequency, Wi-Fi, and Bluetooth.

[0026] Secondly, this application provides a cutting temperature monitoring method, which is implemented based on the cutting temperature monitoring device described in any of the first aspects, and the cutting temperature monitoring method includes the following steps.

[0027] Collect the temperature signal of the hot end of the cutting area at the end of the tool.

[0028] The hot-end temperature signal is conditioned and converted from analog to digital to obtain hot-end temperature data.

[0029] Acquire cold end ambient temperature data, and perform temperature compensation processing on hot end temperature data based on the cold end ambient temperature data to calculate the actual cutting temperature after temperature compensation.

[0030] The actual cutting temperature after temperature compensation is displayed in real time.

[0031] Optionally, the hot-end temperature signal is conditioned and converted from analog to digital to obtain hot-end temperature data, specifically including the following steps.

[0032] The analog voltage signal corresponding to the hot end temperature signal of the cutting area at the end of the acquisition tool.

[0033] The analog voltage signal is filtered and amplified to obtain a filtered and amplified analog signal.

[0034] The filtered and amplified analog signal is converted into a digital hot-end temperature signal, which is used as hot-end temperature data.

[0035] Optionally, the calculation formula for the temperature compensation process is as follows.

[0036] .

[0037] in, This is the actual cutting temperature after temperature compensation. This refers to the hot end temperature. This refers to the cold end ambient temperature.

[0038] According to the specific embodiments provided in this application, this application has the following technical effects.

[0039] This application provides a cutting temperature monitoring device and method. The cutting temperature monitoring device includes a temperature sensing module, a signal processing and data communication module, and a host computer monitoring module. By fixing the temperature sensing module to a basic tool holder and acquiring the hot-end temperature signal of the cutting area at the tool tip, the temperature measurement point is directly aligned with the cutting heat source, avoiding temperature distortion caused by the measurement point deviating from the working area. Simultaneously, it compensates for the hot-end temperature by incorporating cold-end ambient temperature data, eliminating the influence of ambient temperature on the measurement results and significantly improving the accuracy of the actual cutting temperature calculation, ensuring the acquisition of a true and accurate cutting temperature. Furthermore, the temperature sensing module acquires the hot-end temperature signal in real time, and the signal processing and data communication module quickly completes signal conditioning, analog-to-digital conversion, and temperature compensation calculation without intermediate delays. The temperature-compensated actual cutting temperature data can be directly transmitted to the host computer monitoring module, enabling real-time temperature data presentation and meeting the needs for dynamic and continuous real-time monitoring of the cutting process. By fixing the temperature sensing module, signal processing, and wireless transmission module to the basic tool holder, the overall structure is compact and securely installed, preventing displacement or loosening during cutting and ensuring the stability of signal acquisition and transmission. Signal conditioning and analog-to-digital conversion standardize the temperature signal output, avoiding signal fluctuation interference and ensuring data stability during long-term continuous monitoring. Therefore, this application, through its integrated design of directly acquiring the hot-end temperature of the cutting area at the tool tip via the temperature sensing module, signal conditioning and cold-end compensation to eliminate environmental interference, and real-time visualization on a host computer, enables accurate, real-time, and stable monitoring of the tool cutting area temperature. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the overall structure of a cutting temperature monitoring device provided in one embodiment of this application; Figure 2A schematic diagram showing the installation location of the temperature sensing module and the signal processing and data communication module provided in an embodiment of this application; Figure 3 This is a schematic diagram of the signal processing principle of a signal processing submodule provided in an embodiment of this application; Figure 4 This is a schematic flowchart of a cutting temperature monitoring method provided in an embodiment of this application.

[0042] Reference numerals: 1-Temperature sensing module; 2-Signal processing and data communication module; 3-Basic tool holder. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] The purpose of this application is to provide a cutting temperature monitoring device and method for use in cutting temperature monitoring scenarios of CNC machine tools, machining centers, and other equipment. It aims to achieve accurate, real-time, and stable monitoring of the temperature in the cutting area of ​​the tool, solving the problems of low temperature measurement accuracy, susceptibility to interference, and poor integration in existing technologies. It can achieve accurate temperature measurement close to the heat source, adapt to harsh machining environments, and be easily integrated into existing CNC equipment to meet the urgent needs of modern precision, high-efficiency, and intelligent machining for real-time perception and optimization of process status.

[0045] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] like Figure 1 As shown in the figure, this application embodiment proposes a cutting temperature monitoring device, which includes: a temperature sensing module 1, a signal processing and data communication module 2, and a host computer monitoring module.

[0047] The temperature sensing module 1 and the signal processing and data communication module 2 are both fixed on the base tool holder 3, and the signal processing and data communication module 2 is electrically connected to the temperature sensing module 1. The host computer monitoring module is connected to the signal processing and data communication module 2.

[0048] The temperature sensing module 1 is used to collect the temperature signal of the hot end of the cutting area at the end of the tool.

[0049] The signal processing and data communication module 2 is used to condition and convert the hot end temperature signal into analog-to-digital data to obtain hot end temperature data; and to acquire cold end ambient temperature data, and to perform temperature compensation processing on the hot end temperature data based on the cold end ambient temperature data to calculate the actual cutting temperature after temperature compensation.

[0050] The host computer monitoring module is used to display the actual cutting temperature after temperature compensation in real time.

[0051] As an optional implementation, the temperature sensing module 1 is a thermocouple sensor, which includes a sensing end and an output end. The sensing end extends to the cutting area at the end of the tool through a hole drilled inside the tool or an existing internal cooling hole in the tool. The sensing end is used to collect the hot end temperature of the cutting area at the end of the tool, and the output end is used to output an analog voltage signal corresponding to the hot end temperature.

[0052] As an optional implementation, the signal processing and data communication module 2 includes: a signal processing submodule, a sampling chip, and a data communication submodule.

[0053] The input terminal of the signal processing submodule is electrically connected to the output terminal of the thermocouple sensor, the output terminal of the signal processing submodule is connected to the input terminal of the sampling chip, the output terminal of the sampling chip is connected to the input terminal of the data communication submodule, and the output terminal of the data communication submodule is wirelessly connected to the input terminal of the host computer monitoring module.

[0054] The signal processing submodule is used to filter and amplify the analog voltage signal output by the thermocouple sensor to obtain a filtered and amplified analog signal.

[0055] The sampling chip is used to convert the filtered and amplified analog signal into a digital hot-end temperature signal and to acquire the cold-end ambient temperature signal.

[0056] The data communication submodule is used to perform temperature compensation processing based on the digital hot end temperature signal and the cold end ambient temperature signal, calculate the actual cutting temperature after temperature compensation, and wirelessly send the actual cutting temperature after temperature compensation to the host computer monitoring module.

[0057] As an optional implementation, the sampling chip has a built-in temperature sensor located at a position away from the cutting area at the end of the tool. The temperature sensor is used to collect the ambient temperature signal of the cold end at the position away from the cutting area at the end of the tool.

[0058] As an optional implementation, the data communication submodule includes a computing unit and a wireless communication unit.

[0059] The input terminal of the computing unit is connected to the output terminal of the sampling chip, and the output terminal of the computing unit is wirelessly connected to the input terminal of the host computer monitoring module via the wireless communication unit.

[0060] The calculation unit is used to perform temperature compensation processing based on the digital hot end temperature signal and the cold end ambient temperature signal to calculate the actual cutting temperature after temperature compensation.

[0061] The wireless communication unit is used to wirelessly transmit the actual cutting temperature after temperature compensation to the host computer monitoring module.

[0062] As an optional implementation, the calculation formula used by the computing unit when performing temperature compensation processing is as follows.

[0063] .

[0064] in, This is the actual cutting temperature after temperature compensation. This refers to the hot end temperature. This refers to the cold end ambient temperature.

[0065] As an optional implementation, the wireless communication unit employs at least one of the following wireless communication methods: radio frequency, Wi-Fi, and Bluetooth.

[0066] As an optional implementation, the host computer monitoring module can also be connected to the temperature sensing module 1 and the signal processing and data communication module 2 respectively, and is used to send temperature measurement commands and signal processing commands to the temperature sensing module 1 and the signal processing and data communication module 2 respectively, thereby controlling the working state of the temperature sensing module 1 and the signal processing and data communication module 2, controlling the temperature sensing module 1 to collect the hot end temperature, and controlling the signal processing and data communication module 2 to perform signal processing and temperature compensation processing.

[0067] like Figure 2 and Figure 3 As shown in the embodiment of this application, a cutting temperature monitoring device mainly consists of a temperature sensing module 1, a signal processing and data communication module 2, and a host computer monitoring module. The temperature sensing module 1 preferably uses a thermocouple sensor, which is fixed to the base tool holder 3. The thermocouple sensor is placed inside the tool by drilling a hole or directly through the tool's existing internal cooling hole. The sensing end of the thermocouple sensor collects the hot-end temperature of the cutting area at the tool's end, and the output end outputs an analog voltage signal corresponding to the hot-end temperature.

[0068] In this embodiment, the basic tool holder 3 refers to a general tool holder for cutting tools used in CNC machine tools or machining centers. CNC machine tools or machining centers are usually equipped with a tool magazine, which contains several tool clamps. The tool clamps are used to clamp the basic tool holder 3, thereby clamping and fixing various cutting tools. By retrieving different cutting tools from the tool magazine, milling is performed on the workpiece to be machined.

[0069] like Figure 2 As shown, the signal processing and data communication module 2 can be mounted on the base tool holder 3 by means of winding or bolt fixing. The signal processing and data communication module 2 includes a signal processing submodule, a sampling chip, and a data communication submodule. The signal processing submodule filters and amplifies the analog voltage signal from the thermocouple sensor, and the sampling chip converts the filtered and amplified analog signal into a digital hot-end temperature signal. Simultaneously, it acquires the cold-end ambient temperature signal through a built-in temperature sensor. The data communication submodule includes a computing unit and a wireless communication unit. The computing unit preferably uses a microprocessor. Based on the digital hot-end temperature signal and the cold-end ambient temperature signal, the computing unit performs temperature compensation processing to calculate the actual cutting temperature after temperature compensation. The actual cutting temperature after temperature compensation is then wirelessly transmitted to the host computer monitoring module via the wireless communication unit.

[0070] After receiving the actual cutting temperature after temperature compensation, the host computer monitoring module filters and visualizes the actual cutting temperature after temperature compensation, thereby achieving accurate, real-time and stable monitoring of the temperature in the tool cutting area.

[0071] In this embodiment, the core of the thermocouple sensor is the thermocouple, preferably a K-type thermocouple. The sampling chip is an ADS1220 four-channel, 24-bit analog-to-digital sampling chip. The working principle of the signal processing submodule is as follows: Figure 3 As shown, the signal conditioning circuit of this signal processing submodule includes two bias resistors R1 and R2, and a low-pass filter composed of resistors R3 and R4 and capacitor C2. The analog signal output from the K-type thermocouple is DC biased by the two bias resistors R1 and R2, and then input to the low-pass filter for filtering to remove high-frequency noise and interference, resulting in a stable analog signal that is then sent to the sampling chip. The computing unit in the data communication submodule is preferably a microprocessor. The microprocessor sets the signal gain and sampling mode of the sampling chip via the SPI bus and reads the sampled voltage value output by the thermocouple sensor. The conversion relationship between the voltage value and the sampled digital signal is as follows.

[0072] .

[0073] in, This is the voltage value output by the thermocouple sensor. The reference voltage for the sampling chip. It is the signal gain factor. The sampled digital signal output by the sampling chip. This indicates the number of bits in the sampling chip, corresponding to a 24-bit analog-to-digital sampling chip.

[0074] Then, based on the formula relating voltage and temperature of the thermocouple sensor, the hot junction temperature collected by the thermocouple sensor is calculated. For a type K thermocouple, the relationship between the voltage and temperature of the thermocouple sensor is given by the following formula.

[0075] .

[0076] in, This refers to the hot end temperature. This is the voltage value output by the thermocouple sensor.

[0077] In this embodiment of the application, the data communication submodule receives the cold junction ambient temperature. Regarding the hot end temperature Perform temperature compensation, and calculate the actual cutting temperature after temperature compensation. The temperature compensation is calculated using the following formula, which is transmitted wirelessly to the host computer monitoring module.

[0078] .

[0079] in, This is the actual cutting temperature after temperature compensation. This refers to the hot end temperature. This refers to the cold end ambient temperature.

[0080] Since the hot junction temperature data measured by a K-type thermocouple is affected by the ambient temperature, this embodiment of the application performs temperature compensation for the hot junction temperature. During temperature compensation, the microprocessor reads the cold junction ambient temperature from the temperature sensor built into the sampling chip via the SPI bus. Then, the hot end temperature and cold end ambient temperature By summing the results, we can obtain the actual cutting temperature after temperature compensation. .

[0081] This application embodiment uses a temperature compensation method. The hot end temperature is collected by a thermocouple sensor set at the end of the tool, and the cold end ambient temperature is collected by a temperature sensor. The cold end ambient temperature is used to compensate for the hot end temperature, thereby obtaining more accurate and reliable cutting temperature monitoring results.

[0082] Based on the same inventive concept, this application also provides a cutting temperature monitoring method based on the cutting temperature monitoring device described above. The solution provided by this method is similar to the solution described in the above-described device; therefore, the specific limitations in the following embodiments of the cutting temperature monitoring method can be found in the limitations of the cutting temperature monitoring device described above, and will not be repeated here.

[0083] In one exemplary embodiment, such as Figure 4 As shown, a cutting temperature monitoring method is provided, which includes the following steps.

[0084] S1: Collect the temperature signal of the hot end of the cutting area at the end of the tool.

[0085] S2: Condition and convert the hot end temperature signal to digital to obtain hot end temperature data.

[0086] S3: Obtain the cold end ambient temperature data, and perform temperature compensation processing on the hot end temperature data based on the cold end ambient temperature data to calculate the actual cutting temperature after temperature compensation.

[0087] S4: Real-time visualization of the actual cutting temperature after temperature compensation.

[0088] As an optional implementation, step S2 involves conditioning and analog-to-digital conversion of the hot-end temperature signal to obtain hot-end temperature data, specifically including the following steps.

[0089] S21: The analog voltage signal corresponding to the acquisition of the hot end temperature signal of the cutting area at the end of the tool.

[0090] S22: The analog voltage signal is filtered and amplified to obtain a filtered and amplified analog signal.

[0091] S23: Convert the filtered and amplified analog signal into a digital hot-end temperature signal as hot-end temperature data.

[0092] As an optional implementation, in step S3, the calculation formula for the temperature compensation process is as follows.

[0093] .

[0094] in, This is the actual cutting temperature after temperature compensation. This refers to the hot end temperature. This refers to the cold end ambient temperature.

[0095] This application proposes a cutting temperature monitoring device and method. The device includes a temperature sensing module 1, a signal processing and data communication module 2, and a host computer monitoring module. The temperature sensing module 1 uses a thermocouple sensor, which can be placed at the end of the tool through a drilled hole or an existing internal cooling hole to collect the hot-end temperature signal of the tool-workpiece contact area in real time. The signal processing and data communication module 2 performs analog-to-digital sampling of the hot-end temperature signal and wirelessly transmits the hot-end temperature data to the host computer monitoring module. After receiving the temperature data, the host computer monitoring module processes and visualizes the temperature data. By directly mounting the temperature sensing module 1 on the tool holder 3, the temperature changes of the tool's working part during machining can be accurately reflected. Simultaneously, by utilizing the universal tool holder 3 and installing the thermocouple sensor and signal processing and data communication module 2 on it, real-time acquisition and processing of temperature signals are achieved. Furthermore, the temperature data is transmitted wirelessly to the host computer monitoring module for real-time visualization and other data processing. This method is highly suitable for fields such as machining process parameter setting, machining process analysis and optimization, and tool monitoring in mass production.

[0096] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A cutting temperature monitoring device, characterized in that, The cutting temperature monitoring device includes: a temperature sensing module, a signal processing and data communication module, and a host computer monitoring module; Both the temperature sensing module and the signal processing and data communication module are fixed on the basic tool holder, and the signal processing and data communication module is electrically connected to the temperature sensing module. The host computer monitoring module is connected to the signal processing and data communication module. The temperature sensing module is used to collect the temperature signal of the hot end of the cutting area at the end of the tool. The signal processing and data communication module is used to condition and perform analog-to-digital conversion on the hot end temperature signal to obtain hot end temperature data; and to acquire cold end ambient temperature data, and perform temperature compensation processing on the hot end temperature data based on the cold end ambient temperature data to calculate the actual cutting temperature after temperature compensation. The host computer monitoring module is used to display the actual cutting temperature after temperature compensation in real time.

2. The cutting temperature monitoring device according to claim 1, characterized in that, The temperature sensing module is a thermocouple sensor, which includes a sensing end and an output end. The sensing end extends to the cutting area at the end of the tool through a hole drilled inside the tool or an existing internal cooling hole. The sensing end is used to collect the hot end temperature of the cutting area at the end of the tool. The output end is used to output an analog voltage signal corresponding to the hot end temperature.

3. The cutting temperature monitoring device according to claim 2, characterized in that, The signal processing and data communication module includes: a signal processing submodule, a sampling chip, and a data communication submodule; The input terminal of the signal processing submodule is electrically connected to the output terminal of the thermocouple sensor, the output terminal of the signal processing submodule is connected to the input terminal of the sampling chip, the output terminal of the sampling chip is connected to the input terminal of the data communication submodule, and the output terminal of the data communication submodule is wirelessly connected to the input terminal of the host computer monitoring module. The signal processing submodule is used to filter and amplify the analog voltage signal output by the thermocouple sensor to obtain a filtered and amplified analog signal. The sampling chip is used to convert the filtered and amplified analog signal into a digital hot-end temperature signal and to acquire the cold-end ambient temperature signal. The data communication submodule is used to perform temperature compensation processing based on the digital hot end temperature signal and the cold end ambient temperature signal, calculate the actual cutting temperature after temperature compensation, and wirelessly send the actual cutting temperature after temperature compensation to the host computer monitoring module.

4. The cutting temperature monitoring device according to claim 3, characterized in that, The sampling chip has a built-in temperature sensor, which is located away from the cutting area at the end of the tool. The temperature sensor is used to collect the ambient temperature signal of the cold end at the location away from the cutting area at the end of the tool.

5. The cutting temperature monitoring device according to claim 3, characterized in that, The data communication submodule includes: a computing unit and a wireless communication unit; The input terminal of the computing unit is connected to the output terminal of the sampling chip, and the output terminal of the computing unit is wirelessly connected to the input terminal of the host computer monitoring module via the wireless communication unit. The calculation unit is used to perform temperature compensation processing based on the digital hot end temperature signal and the cold end ambient temperature signal to calculate the actual cutting temperature after temperature compensation. The wireless communication unit is used to wirelessly transmit the actual cutting temperature after temperature compensation to the host computer monitoring module.

6. The cutting temperature monitoring device according to claim 5, characterized in that, The calculation formula used by the computing unit to perform temperature compensation processing is as follows: ； in, This is the actual cutting temperature after temperature compensation. This refers to the hot end temperature. This refers to the cold end ambient temperature.

7. The cutting temperature monitoring device according to claim 5, characterized in that, The wireless communication unit adopts at least one of the following wireless communication methods: radio frequency, Wi-Fi, and Bluetooth.

8. A method for monitoring cutting temperature, characterized in that, The cutting temperature monitoring method is implemented based on the cutting temperature monitoring device according to any one of claims 1-7, and the cutting temperature monitoring method includes: Collect the temperature signal of the hot end of the cutting area at the end of the tool; The hot-end temperature signal is conditioned and converted from analog to digital to obtain hot-end temperature data; Acquire cold end ambient temperature data, and perform temperature compensation processing on hot end temperature data based on the cold end ambient temperature data to calculate the actual cutting temperature after temperature compensation. The actual cutting temperature after temperature compensation is displayed in real time.

9. The cutting temperature monitoring method according to claim 8, characterized in that, The hot-end temperature signal is conditioned and converted from analog to digital to obtain hot-end temperature data, specifically including: The analog voltage signal corresponding to the hot end temperature signal of the cutting area at the end of the tool is acquired; The analog voltage signal is filtered and amplified to obtain a filtered and amplified analog signal; The filtered and amplified analog signal is converted into a digital hot-end temperature signal, which is used as hot-end temperature data.

10. The cutting temperature monitoring method according to claim 8, characterized in that, The calculation formula for the temperature compensation process is as follows: ； in, This is the actual cutting temperature after temperature compensation. This refers to the hot end temperature. This refers to the cold end ambient temperature.

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