Pulley quenching method and system, intelligent terminal and storage medium

By coordinating the control of the fixture and the processing device, the entire process of pulley quenching is automated, which solves the problem of uneven heating during pulley quenching, improves processing accuracy and efficiency, and reduces the probability of pulley damage.

CN120843802AActive Publication Date: 2025-10-28NINGBO DONGFANG PULLEY CO LTD
View PDF 9 Cites 0 Cited by

Patent Information

Application Number
CN202511351779.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-10-28
Estimated Expiration
2045-09-22

AI Technical Summary

Technical Problem

In the existing technology, uneven heating is prone to occur during the quenching process of pulleys, which can lead to pulley damage.

Method used

By employing coordinated control of fixtures and processing devices, the entire pulley quenching process is automated. After the workpiece is clamped by the fixture, it is driven to rotate synchronously, so that the heating components evenly cover the edge of the pulley groove. Real-time temperature monitoring accurately triggers the start and stop of the quenching cooling components. Combined with timestamp and temperature threshold analysis, the rotation speed and heating power are dynamically adjusted to ensure that the quenching start time is within the optimal temperature range for material phase transformation.

Benefits of technology

It significantly reduces the risk of thermal deformation of pulleys during the quenching process, improves processing accuracy and efficiency, avoids temperature lag or overheating caused by manual intervention, and ensures the consistency of quenching layer depth and uniformity of pulley performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120843802A_ABST
    Figure CN120843802A_ABST
Patent Text Reader

Abstract

The invention relates to a pulley quenching method and system, an intelligent terminal and a storage medium, and relates to the technical field of pulley machining, and the method comprises the steps that in response to the fact that a machined pulley is placed on a clamp of the quenching system, the clamp is clamped, the machined pulley is fixed through the clamp, the quenching system further comprises a machining device, and the machining device extends into a pulley groove of the machined pulley; the machining device comprises a heating assembly and a quenching cooling assembly. The clamp is started, and the machining pulley and the clamp rotate together; starting a heating assembly, wherein the heating assembly is used for heating the edge of the processing pulley; acquiring a temperature value of the processed pulley; under the condition that the temperature value reaches the machining temperature, a quenching and cooling assembly is started, a heating assembly is closed, and the quenching and cooling assembly is used for quenching the edge of the machined pulley; closing the quenching cooling assembly; and controlling the clamp to release the processing pulley. The pulley quenching device has the effect of reducing the damage probability of the pulley in the quenching process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of pulley processing technology, and in particular to a pulley quenching method, system, smart terminal and storage medium. Background Technology

[0002] To improve the hardness, wear resistance, and load-bearing capacity of pulleys, they can be quenched to enhance their performance.

[0003] The relevant technology employs a flame hardening method. This method selects appropriate hardening process parameters, including heating temperature, heating rate, and cooling medium, based on the pulley material and hardness requirements. The pulley is then heated until its surface temperature reaches the specified temperature. Finally, a cooling medium is used to cool the pulley, thereby achieving the hardening purpose.

[0004] Regarding the aforementioned technologies, uneven heating is prone to occur when quenching pulleys, leading to damage to the pulleys during cooling and quenching. Summary of the Invention

[0005] To reduce the probability of pulley damage during quenching, this application provides a pulley quenching method, system, smart terminal, and storage medium.

[0006] Firstly, this application provides a pulley quenching method, which adopts the following technical solution: A pulley quenching method, comprising: In response to detecting that the machining pulley is placed on the fixture of the quenching system, the fixture is clamped to fix the machining pulley. The quenching system also includes a machining device that extends into the pulley groove of the machining pulley. The machining device includes a heating component and a quenching cooling component. Open the fixture so that the processing pulley rotates together with the fixture; The heating assembly is activated; the heating assembly is used to heat the edge of the processing pulley. Obtain the temperature value of the processing pulley; When the temperature reaches the processing temperature, the quenching and cooling assembly is turned on and the heating assembly is turned off. The quenching and cooling assembly is used to quench the edge of the processing pulley. Turn off the quenching and cooling assembly; Control the fixture to release the machining pulley.

[0007] By adopting the above technical solution, the coordinated control of the fixture and processing device is integrated to achieve full automation of the pulley quenching process. After the fixture clamps the workpiece, it drives the rotation synchronously, so that the heating component evenly covers the edge of the pulley groove; real-time temperature monitoring accurately triggers the start and stop of the quenching cooling component, avoiding temperature lag or overheating caused by manual intervention. The closed-loop control of the "clamping-heating-quenching-release" process significantly reduces the risk of thermal deformation while ensuring the depth of the quenched layer, and effectively improves processing accuracy and efficiency by avoiding secondary clamping of the workpiece.

[0008] Optionally, if the first temperature value is detected to have reached the processing temperature, a second temperature value after the first temperature value is recorded, wherein the timestamp corresponding to the second temperature value is after the timestamp corresponding to the first temperature value. When the number of the second temperature values ​​reaches a preset number, the average value of the temperature values ​​in the current time period is obtained to obtain the comparison temperature value, wherein the current time period is the period in which the number of the second temperature values ​​reaches the preset number; If the difference between the comparison temperature value and the processing temperature is greater than a first preset threshold, then the first temperature value is re-determined; If the difference between the comparison temperature value and the processing temperature is not greater than the first preset threshold, then it is determined that the temperature value has reached the processing temperature.

[0009] By adopting the above technical solution, and recording consecutive second temperature values ​​after the first temperature reaches the target, the average value is compared with the processing temperature threshold to eliminate random errors from single-point temperature measurement. Combined with timestamp correlation analysis and a preset sampling quantity, false signals of reaching the target due to localized heat dissipation or sensor malfunctions can be identified, significantly improving the reliability of temperature determination. This design ensures that the quenching initiation time is always within the optimal temperature range for material phase transformation, avoiding microstructural and performance defects caused by premature or delayed cooling.

[0010] Optionally, if a third temperature value exists during the processing period, the current rotation speed of the fixture is obtained, and the difference between the third temperature value and the processing temperature is greater than a second preset threshold, and the second preset threshold is greater than the first preset threshold. The rotation period of the fixture is calculated based on the current rotation speed; Determine the target timestamp corresponding to the third temperature value; A detection timestamp is generated based on the target timestamp and the rotation period; Obtain the detection temperature value corresponding to the detection timestamp; The number of temperatures whose difference from the processing temperature is greater than the second preset threshold is counted among the detected temperature values; If the temperature value exceeds a threshold value, the rotation speed of the clamp is reduced. If the temperature quantity is not greater than the quantity threshold, the heating component remains on.

[0011] By adopting the above technical solution, a dynamic correlation between thermal field uniformity and mechanical motion is established for the rotational speed linkage control of the third temperature value. By mapping abnormal temperature timestamps to the fixture rotation cycle, additional detection is performed at the corresponding phase points to locate the weak heat conduction area in the pulley's circumference. The rotational speed is intelligently adjusted based on the statistical number of abnormal points: when abnormalities are concentrated, the speed is reduced to prolong heat conduction time; when abnormalities are dispersed, the speed is maintained to ensure efficiency. This strategy significantly improves the overall temperature uniformity of the pulley groove while avoiding energy waste caused by blindly reducing speed.

[0012] Optionally, the detection timestamp can be regenerated based on the updated rotation speed of the fixture; Set the processing window according to the detection timestamp; If the third temperature value is greater than the processing temperature, the difference between the processing temperature and the preset temperature error is calculated to obtain the adjustment temperature; If the third temperature value is less than the processing temperature, then the sum of the errors between the processing temperature and the preset temperature is calculated to obtain the adjustment temperature; Within the processing window, the operating temperature of the heating component is adjusted to the regulated temperature.

[0013] By adopting the above technical solution, a processing window is defined based on the detection timestamp after the rotational speed is updated, and precise temperature control is implemented within a specific rotational phase range. Based on the deviation direction between the third temperature value and the target value, the adjustable temperature value, including error tolerance, is dynamically calculated, and the heating power is adjusted in real time within the window period. This design effectively offsets localized temperature drift caused by fluctuations in material composition or uneven heat dissipation, significantly improving the uniformity of the hardness during pulley edge quenching.

[0014] Optionally, if there are at least two third temperature values, the rotation cycle is updated according to the updated rotation speed of the fixture; Record the third temperature value within a single rotation cycle to form a temperature value set; A time axis is formed based on the duration of the rotation cycle; Mark the third temperature value from the set of temperature values ​​on the time axis; Clustering operations are performed on the third temperature value on the time axis to obtain temperature clusters; The processing window is obtained based on the distribution of the temperature clusters on the time axis.

[0015] By adopting the above technical solution, the rotation cycle after the speed update is used as the time axis, and the scattered abnormal temperature values ​​within the cycle are intelligently clustered to automatically identify the phase intervals where temperature anomalies are concentrated. The processing window generated accordingly accurately covers the circumferential systematic thermal defect area of ​​the pulley, allowing temperature regulation resources to be focused on key sections. This design significantly improves the processing efficiency of multi-anomaly scenarios and enhances the consistency of the quenching layer depth.

[0016] Optionally, retrieve historical processing records; Read the historical operating mode of the fixture from the historical processing records; Obtain the current operating mode of the fixture; By comparing the historical operating mode with the current operating mode, the operating difference of the fixture is obtained; If the operational difference is greater than the difference threshold, the fixture is adjusted according to the historical operational mode; If the operational difference is not greater than the difference threshold, then the fixture is controlled to work according to the current operating mode.

[0017] By employing the above technical solution, early warning of fixture performance degradation is achieved through the analysis of differences between historical and current operating modes. By comparing historical standard parameters with current actual operating data, the impact of mechanical wear or assembly deviations is quantified. When the difference exceeds a threshold, historical parameters are automatically invoked to calibrate the fixture, avoiding machining errors caused by rotational eccentricity or speed fluctuations. This mechanism significantly extends equipment maintenance cycles and reduces the scrap rate caused by clamping misalignment.

[0018] Optionally, the historical rotational speed of the fixture can be extracted from the historical operating mode; Extract the current rotational speed of the fixture from the current operating mode; The target rotation speed is obtained by performing a weighted calculation on the historical rotation speed and the current rotation speed; The clamp is adjusted according to the target rotation speed.

[0019] By employing the above technical solution, a target speed value is generated by extracting historical and current speeds using a weighted algorithm: historical data weights ensure system stability, while current data weights adapt to temporary load changes. This adjustment method effectively suppresses speed jumps caused by sudden disturbances, while gradually restoring the original performance of the equipment, significantly improving rotational stability and quenching cooling uniformity.

[0020] Secondly, this application provides a pulley quenching system, which adopts the following technical solution: A pulley quenching system, comprising: The acquisition module is used to acquire temperature values; A memory for storing the program of the pulley quenching method; The processor and the program in the memory can be loaded and executed by the processor to implement the pulley quenching method.

[0021] By adopting the above technical solution, the coordinated control of the fixture and processing device is integrated to achieve full automation of the pulley quenching process. After the fixture clamps the workpiece, it drives the rotation synchronously, so that the heating component evenly covers the edge of the pulley groove; real-time temperature monitoring accurately triggers the start and stop of the quenching cooling component, avoiding temperature lag or overheating caused by manual intervention. The closed-loop control of the "clamping-heating-quenching-release" process significantly reduces the risk of thermal deformation while ensuring the depth of the quenched layer, and effectively improves processing accuracy and efficiency by avoiding secondary clamping of the workpiece.

[0022] Thirdly, this application provides a smart terminal, which adopts the following technical solution: A smart terminal includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute the method described in any of the above-mentioned embodiments.

[0023] Fourthly, this application provides a computer storage medium capable of storing corresponding programs, which facilitates reducing the probability of pulley damage during quenching, and adopts the following technical solution: A computer-readable storage medium storing a computer program that can be loaded by a processor and executed in any of the above-described pulley quenching methods.

[0024] In summary, this application includes at least one of the following beneficial technical effects: The integrated control of fixtures and machining devices enables full automation of the pulley quenching process. After clamping the workpiece, the fixture synchronously drives rotation, ensuring the heating components evenly cover the edge of the pulley groove. Real-time temperature monitoring precisely triggers the start and stop of the quenching cooling components, avoiding temperature lag or overheating caused by manual intervention. The closed-loop control of the "clamping-heating-quenching-release" process significantly reduces the risk of thermal deformation while ensuring the depth of the quenched layer. Furthermore, by avoiding secondary clamping of the workpiece, it effectively improves machining accuracy and efficiency. By recording consecutive second temperature values ​​after the first temperature reaches the target, and comparing the average value with the processing temperature threshold, random errors from single-point temperature measurement are eliminated. Combined with timestamp correlation analysis and a preset sampling quantity, false target-reaching signals caused by localized heat dissipation or sensor malfunctions can be identified, significantly improving the reliability of temperature determination. This design ensures that the quenching initiation time is always within the optimal temperature range for material phase transformation, avoiding microstructural and performance defects caused by premature or delayed cooling. This mechanism provides early warning of fixture performance degradation by analyzing the differences between historical and current operating modes. It compares historical standard parameters with current actual operating data to quantify the impact of mechanical wear or assembly deviations. When the difference exceeds a threshold, it automatically calls upon historical parameters to calibrate the fixture, avoiding machining errors caused by rotational eccentricity or speed fluctuations. This mechanism significantly extends equipment maintenance cycles and reduces the scrap rate caused by clamping misalignment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a quenching system provided in an embodiment of this application.

[0026] Figure 2 This is a schematic flowchart of a pulley quenching method provided in an embodiment of this application.

[0027] Figure 3 This is a flowchart illustrating a method for determining processing temperature provided in an embodiment of this application.

[0028] Figure 4 This is a flowchart illustrating a control method for a quenching system provided in an embodiment of this application.

[0029] Figure 5 This is a flowchart illustrating a control method for a heating component provided in an embodiment of this application.

[0030] Figure 6 This is a flowchart illustrating a method for generating a processing window provided in an embodiment of this application.

[0031] Figure 7 This is a schematic diagram of a timeline provided in an embodiment of this application.

[0032] Figure 8 This is a flowchart illustrating a method for adjusting the operation of a fixture according to an embodiment of this application.

[0033] Figure 9 This is a flowchart illustrating a second method for adjusting the operation of a fixture, as provided in an embodiment of this application.

[0034] Figure 10 This is a schematic diagram of a pulley quenching system provided in an embodiment of this application. Detailed Implementation

[0035] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1 To be continued Figure 10 It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0036] This application discloses a quenching system. (Refer to...) Figure 1 The system includes a fixture 11 and a processing device 12, the processing device 12 including a heating component 121 and a quenching and cooling component 122.

[0037] The heating assembly 121 is used to heat the edge of the machined pulley. The quenching and cooling assembly 122 is used to quench the edge of the machined pulley.

[0038] This application discloses a pulley quenching method. (Refer to...) Figure 2 The method includes: Step S201: In response to detecting that the machining pulley is placed on the fixture of the quenching system, clamp the fixture to fix the machining pulley. The quenching system also includes a machining device that extends into the pulley groove of the machining pulley. The machining device includes a heating component and a quenching cooling component.

[0039] The clamping process can be automated by the quenching system or performed manually by a technician. For example, a camera can be installed on the quenching system to capture images of the fixture. If a machining pulley is detected in the fixture image and is positioned on the fixture, the fixture is clamped.

[0040] The heating element is used to heat the edge of the processing pulley. Optionally, the heating element uses an alternating electromagnetic field to generate an induced current on the edge of the processing pulley to heat the edge of the pulley.

[0041] The quenching cooling assembly is used to cool the machining pulleys to achieve the quenching operation. Optionally, the quenching cooling assembly is provided with an outlet for the cooling medium. The cooling medium can be any one of water, quenching oil, or polymer solution.

[0042] Step S202: Open the fixture so that the machining pulley rotates together with the fixture.

[0043] The clamp is connected to the motor. After the clamp is opened, the motor will start to rotate and drive the clamp to rotate as well.

[0044] Step S203: Turn on the heating component, which is used to heat the edge of the processing pulley.

[0045] For example, please refer to Figure 1 After the heating element is turned on, the machining pulley rotates together with the fixture. Therefore, the heating area of ​​the machining pulley changes with the rotation of the machining pulley, thereby achieving heating of the entire edge of the machining pulley.

[0046] Step S204: Obtain the temperature value of the processing pulley.

[0047] Optionally, a temperature sensor is installed on the quenching system to collect the temperature value on the machining pulley. For an example, please refer to... Figure 1 Temperature sensor Step S205: When the temperature reaches the processing temperature, turn on the quenching and cooling component and turn off the heating component. The quenching and cooling component is used to quench the edge of the processing pulley.

[0048] The processing temperature is a preset value. Alternatively, the processing temperature can be the quenching temperature of the pulley. For example, when processing a pulley made of 45 steel, the processing temperature is 820℃-850℃. When processing a pulley made of 45Cr, the processing temperature is 830℃-860℃.

[0049] Step S206: Turn off the quenching cooling component.

[0050] Optionally, the quenching cooling assembly is turned off after the temperature of the machined pulley drops to the quenching completion temperature. The quenching completion temperature can be the martensitic transformation initiation temperature; for example, when the pulley is made of 45 steel, the quenching completion temperature is 250°C or below.

[0051] Optionally, the quenching component can be turned off after a preset duration has elapsed since it was turned on. For example, the preset duration is 30 seconds.

[0052] Step S207: Control the fixture to release the machining pulley.

[0053] The process of controlling the release of the machining pulley by the fixture can be carried out automatically by the quenching system or manually by technicians.

[0054] Optionally, after the fixture stops rotating, the fixture can be controlled to release the machining pulley.

[0055] By adopting the above technical solution, the coordinated control of the fixture and processing device is integrated to achieve full automation of the pulley quenching process. After the fixture clamps the workpiece, it drives the rotation synchronously, so that the heating component evenly covers the edge of the pulley groove. Real-time temperature monitoring accurately triggers the start and stop of the quenching cooling component, avoiding temperature lag or overheating caused by manual intervention. The closed-loop control of the "clamping-heating-quenching-release" process significantly reduces the risk of thermal deformation while ensuring the depth of the quenched layer, and effectively improves processing accuracy and efficiency by avoiding secondary clamping of the workpiece.

[0056] In the following embodiments, when reading temperature values ​​in real time, it is necessary to ensure that the edges of the machining pulley generally reach the machining temperature to guarantee the effect of subsequent quenching. Therefore, this application discloses a method for determining the machining temperature. (Refer to...) Figure 3 The method includes: Step S301: When the first temperature value is detected to have reached the processing temperature, record the second temperature value after the first temperature value, and the timestamp corresponding to the second temperature value is after the timestamp corresponding to the first temperature value.

[0057] The first temperature value is the temperature at which the temperature first exceeds the processing temperature.

[0058] For example, the quenching system acquires temperature values ​​in real time and records the timestamps corresponding to the temperature values. When a temperature value is detected to be higher than the processing temperature for the first time, this temperature value is recorded as the first temperature value, and the timestamp corresponding to the first temperature value is determined. Temperature values ​​acquired after the timestamp corresponding to the first temperature value are recorded as the second temperature value.

[0059] Step S302: When the number of second temperature values ​​reaches a preset number, obtain the average value of temperature values ​​in the current time period to obtain the comparison temperature value. The current time period is the period when the number of second temperature values ​​reaches the preset number.

[0060] The preset quantity is related to the rotational speed of the fixture and the sampling frequency of the temperature sensor. The rotational speed of the fixture and the sampling frequency are usually related. The sampling frequency requires that the temperature sensor can collect a sufficient number of data within one rotation of the fixture. For example, if the rotational speed of the fixture is 60 rpm, the sampling frequency can be 20 Hz, which means that the temperature sensor can collect 20 temperature values ​​per second.

[0061] Furthermore, the preset quantity can be set to k times the sampling frequency of the temperature sensor, where k can be 5. For example, when the sampling frequency is 20Hz, the preset quantity can be 100.

[0062] For example, if the number of second temperature values ​​reaches a preset number at 12:00, then the time period from 11:50 to 12:00 is regarded as the current time period.

[0063] Step S303: If the difference between the comparison temperature value and the processing temperature is greater than the first preset threshold, then the first temperature value is redefined.

[0064] The first preset threshold is a preset empirical value, for example, the first preset threshold is 10℃. If the difference between the comparison temperature value and the processing temperature is greater than the first preset threshold, it indicates that there is uneven temperature at the edge of the processing pulley, and the first temperature value needs to be re-determined.

[0065] Step S304: If the difference between the compared temperature value and the processing temperature is not greater than the first preset threshold, then the temperature value is determined to have reached the processing temperature.

[0066] If the difference between the comparison temperature and the processing temperature is not greater than the first preset threshold, it indicates that the temperature of the processing pulley edge is relatively uniform and the heating effect on the processing pulley is good.

[0067] By adopting the above technical solution, and recording consecutive second temperature values ​​after the first temperature reaches the target, the average value is compared with the processing temperature threshold to eliminate random errors from single-point temperature measurement. Combined with timestamp correlation analysis and a preset sampling quantity, false signals of reaching the target due to localized heat dissipation or sensor malfunctions can be identified, significantly improving the reliability of temperature determination. This design ensures that the quenching initiation time is always within the optimal temperature range for material phase transformation, avoiding microstructural and performance defects caused by premature or delayed cooling.

[0068] This application discloses a control method for a quenching system. (Refer to...) Figure 4 The method includes: Step S401: If a third temperature value exists during the processing period, the current rotation speed of the fixture is obtained. The difference between the third temperature value and the processing temperature is greater than the second preset threshold, and the second preset threshold is greater than the first preset threshold.

[0069] When a third temperature value appears during the processing period, it indicates that there may be points on the edge of the processing pulley that are too hot or too cold. The existence of such points may affect the subsequent cooling and quenching process, so it is necessary to further confirm whether such points actually exist.

[0070] The second preset threshold is related to the processing temperature, and is set to half of the corresponding processing temperature range. For example, when processing pulleys using 45 steel, if the processing temperature is 820℃-850℃, then the second preset threshold is 15℃.

[0071] Step S402: Calculate the rotation cycle of the fixture based on the current rotation speed.

[0072] Rotation cycle refers to the time it takes for the fixture to rotate one revolution.

[0073] Step S403: Determine the target timestamp corresponding to the third temperature value.

[0074] The target timestamp is used to indicate the time when the third temperature value was collected.

[0075] Step S404: Generate a detection timestamp based on the target timestamp and the rotation period.

[0076] For example, if the target timestamp is t and the rotation period is T, then the detection timestamp is t+nT, where n is an integer.

[0077] Step S405: Obtain the detection temperature value corresponding to the detection timestamp.

[0078] The detected temperature value refers to the temperature value obtained at the detected timestamp. The detected temperature value is the temperature value at the same point on the pulley assembly at different times.

[0079] Step S406: Count the number of temperatures whose difference from the processing temperature is greater than the second preset threshold.

[0080] The number of temperature values ​​indicates the number of temperature values ​​whose difference from the processing temperature is greater than the second preset threshold.

[0081] Step S407: If the temperature quantity is greater than the quantity threshold, reduce the rotation speed of the fixture.

[0082] The quantity threshold is a preset empirical value, for example, a quantity threshold of 5 or 10. When the temperature quantity exceeds the quantity threshold, it indicates that during the processing period, there is a point on the processing pulley where the temperature difference between the point and the processing temperature is consistently greater than a second preset threshold. The presence of this point may cause damage to the processing pulley during cooling and quenching, thereby affecting the overall structural strength of the processing pulley.

[0083] Step S408: If the temperature quantity is not greater than the quantity threshold, then keep the heating component on.

[0084] When the temperature is not greater than the threshold, it indicates that the temperature at the edge of the processing pulley is relatively uniform during the processing period, and has little impact on cooling and quenching.

[0085] By adopting the above technical solution, a dynamic correlation between thermal field uniformity and mechanical motion is established for the rotational speed linkage control of the third temperature value. By mapping abnormal temperature timestamps to the fixture rotation cycle, additional detection is performed at the corresponding phase points to locate the weak heat conduction area in the pulley's circumference. The rotational speed is intelligently adjusted based on the statistical number of abnormal points: when abnormalities are concentrated, the speed is reduced to prolong heat conduction time; when abnormalities are dispersed, the speed is maintained to ensure efficiency. This strategy significantly improves the overall temperature uniformity of the pulley groove while avoiding energy waste caused by blindly reducing speed.

[0086] In the following embodiments, after reducing the rotational speed of the fixture, the operating mode of the heating component can be adjusted according to the relationship between the third temperature value and the processing temperature to eliminate the third temperature value. Therefore, this application discloses a method for controlling a heating component. (Refer to...) Figure 5 The method includes: Step S501: Regenerate the detection timestamp based on the updated rotation speed of the fixture.

[0087] The method for regenerating the detection timestamp can be found in [reference]. Figure 6 The embodiments shown are not described in detail here.

[0088] Step S502: Set the processing window according to the detection timestamp.

[0089] For example, the length of the processing window is set. The correction time is obtained based on the rotation angle from the temperature sensor to the heating component and the rotation speed of the fixture. The correction time is summed with the detection timestamp to obtain the update timestamp. The update timestamp is used as the midpoint of the processing window to obtain the processing window. For example, if the update timestamp is 12:00 and the window length is 2 seconds, the detection window can be set to (11:29, 12:01).

[0090] Step S503: If the third temperature value is greater than the processing temperature, calculate the difference between the processing temperature and the preset temperature error to obtain the adjustment temperature.

[0091] If the third temperature value is greater than the processing temperature, it means that the third temperature value is a point on the processing pulley where the temperature is too high, and subsequent cooling treatment is required.

[0092] Step S504: If the third temperature value is less than the processing temperature, calculate the sum of the errors between the processing temperature and the preset temperature to obtain the adjustment temperature.

[0093] If the third temperature value is lower than the processing temperature, it means that the third temperature value is a point on the processing pulley where the temperature is too low, and subsequent heating treatment is required.

[0094] Step S505: In the processing window, adjust the working temperature of the heating component to the regulated temperature.

[0095] Within the processing window, the point corresponding to the third temperature value is rotated to the heating component, where the heating component, after adjusting its working temperature, heats the aforementioned point to achieve temperature increase or decrease.

[0096] By adopting the above technical solution, a processing window is defined based on the detection timestamp after the rotational speed is updated, and precise temperature control is implemented within a specific rotational phase range. Based on the deviation direction between the third temperature value and the target value, the adjustable temperature value, including error tolerance, is dynamically calculated, and the heating power is adjusted in real time within the window period. This design effectively offsets localized temperature drift caused by fluctuations in material composition or uneven heat dissipation, significantly improving the uniformity of the hardness during pulley edge quenching.

[0097] This application discloses a method for generating a processing window. (Refer to...) Figure 6 The method includes: Step S601: When there are at least two third temperature values, update the rotation cycle according to the updated rotation speed of the fixture.

[0098] When there are at least two third temperature values, the processing window needs to be set according to the multiple third temperature values.

[0099] Step S602: Record the third temperature value within a single rotation cycle to form a set of temperature values.

[0100] The third temperature value in the temperature value set was collected within a single rotation cycle of the fixture.

[0101] Step S603: Form a time axis based on the duration of the rotation cycle.

[0102] The length of the time axis is the same as the duration of the rotation cycle. For an example, please refer to... Figure 7 If the rotation cycle lasts for 5 seconds, then the length of the resulting time axis is also 5 seconds.

[0103] Step S604: Mark the third temperature value in the temperature value set on the time axis.

[0104] For example, please refer to Figure 7 The third temperature value in the set of temperature values ​​is marked on the time axis, resulting in points A, B, C, D, and E.

[0105] Step S605: Perform clustering operation on the third temperature value on the time axis to obtain temperature clusters.

[0106] Clustering operations can employ algorithms such as K-Means, DBSCAN, and spectral clustering. This application does not specify a particular algorithm for clustering operations. For examples, please refer to [reference needed]. Figure 6 Points A, B, and C are clustered to form a temperature cluster.

[0107] Step S606: Obtain the processing window according to the distribution of temperature clusters on the time axis.

[0108] For example, the earliest and latest time points within the same temperature cluster are selected. A processing window is then formed based on these earliest and latest time points. For instance, please refer to... Figure 7 In the temperature clusters formed at points A, B, and C, point A is taken as the earliest time point and point C as the latest time point to obtain the processing window.

[0109] By adopting the above technical solution, the rotation cycle after the speed update is used as the time axis, and the scattered abnormal temperature values ​​within the cycle are intelligently clustered to automatically identify the phase intervals where temperature anomalies are concentrated. The processing window generated accordingly accurately covers the circumferential systematic thermal defect area of ​​the pulley, allowing temperature regulation resources to be focused on key sections. This design significantly improves the processing efficiency of multi-anomaly scenarios and enhances the consistency of the quenching layer depth.

[0110] This application discloses a method for adjusting the operation of a fixture. (Refer to...) Figure 8 The method includes: Step S801: Obtain historical processing records.

[0111] Historical processing records include at least one of the following: processing time of the fixture on the pulley, rotational speed of the fixture, and operating temperature of the heating components.

[0112] Step S802: Read the historical operating mode of the fixture from the historical processing records.

[0113] The historical operating mode includes at least the rotational speed of the clamp. Furthermore, the historical operating mode may also include the operating temperature of the heating element.

[0114] Step S803: Obtain the current operating mode of the fixture.

[0115] The current operating mode includes at least the rotational speed of the clamp. Furthermore, the current operating mode may also include the operating temperature of the heating element.

[0116] Step S804: Compare the historical operating mode with the current operating mode to obtain the operating difference of the fixture.

[0117] For example, the historical speed in the historical operating mode and the current speed in the current operating mode are taken. The difference between the historical speed and the current speed is calculated to obtain the operating difference degree.

[0118] For example, the historical operating temperature from the historical operating mode and the current operating temperature from the current operating mode are taken. The difference between the historical operating temperature and the current operating temperature is calculated to obtain the operating difference degree.

[0119] Step S805: If the operating difference is greater than the difference threshold, adjust the fixture according to the historical operating mode.

[0120] If the operational difference exceeds the difference threshold, it indicates that the fixture is deviating from its intended function and needs to be adjusted to correct the deviation.

[0121] Step S806: If the operating difference is not greater than the difference threshold, then control the fixture to work according to the current operating mode.

[0122] If the operational difference is not greater than the difference threshold, it indicates that the fixture has not deviated from its operating parameters, and the fixture can continue to be controlled according to the current operating mode.

[0123] By employing the above technical solution, early warning of fixture performance degradation is achieved through the analysis of differences between historical and current operating modes. By comparing historical standard parameters with current actual operating data, the impact of mechanical wear or assembly deviations is quantified. When the difference exceeds a threshold, historical parameters are automatically invoked to calibrate the fixture, avoiding machining errors caused by rotational eccentricity or speed fluctuations. This mechanism significantly extends equipment maintenance cycles and reduces the scrap rate caused by clamping misalignment.

[0124] This application discloses a second method for adjusting the operation of a fixture. (Refer to...) Figure 8 The method includes: Step S901: Extract the historical rotation speed of the fixture from the historical operating mode.

[0125] Optionally, multiple rotation speeds can be extracted from historical operating patterns. The average of these multiple rotation speeds is taken to obtain the historical rotation speed for this step.

[0126] Step S902: Extract the current rotation speed of the fixture from the current operating mode.

[0127] Step S903: Perform a weighted calculation on the historical rotation speed and the current rotation speed to obtain the target rotation speed.

[0128] For example, let the historical rotation speed be q, the current rotation speed be p, and the target rotation speed be 80%q + 20%p.

[0129] Step S904: Adjust the fixture according to the target rotation speed.

[0130] For example, the rotation of the clamp is adjusted to the target rotation speed.

[0131] By employing the above technical solution, a target speed value is generated by extracting historical and current speeds using a weighted algorithm: historical data weights ensure system stability, while current data weights adapt to temporary load changes. This adjustment method effectively suppresses speed jumps caused by sudden disturbances, while gradually restoring the original performance of the equipment, significantly improving rotational stability and quenching cooling uniformity.

[0132] Based on the same inventive concept, embodiments of this application provide a pulley quenching system, comprising: Module 1001 is used to acquire temperature values; The memory 1002 is used to store the program for the pulley quenching method; The processor 1003 can load and execute the program in the memory to implement the pulley quenching method.

[0133] By adopting the above technical solution, the coordinated control of the fixture and processing device is integrated to achieve full automation of the pulley quenching process. After the fixture clamps the workpiece, it drives the rotation synchronously, so that the heating component evenly covers the edge of the pulley groove; real-time temperature monitoring accurately triggers the start and stop of the quenching cooling component, avoiding temperature lag or overheating caused by manual intervention. The closed-loop control of the "clamping-heating-quenching-release" process significantly reduces the risk of thermal deformation while ensuring the depth of the quenched layer, and effectively improves processing accuracy and efficiency by avoiding secondary clamping of the workpiece.

[0134] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0135] This application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and executed as a pulley quenching method.

[0136] Computer storage media include, for example, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media that can store program code.

[0137] Based on the same inventive concept, embodiments of this application provide a smart terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as a pulley quenching method.

[0138] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0139] The above are all preferred embodiments of the present application and are not intended to limit the scope of protection of this application. Unless otherwise specified, any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features. In other words, unless otherwise specified, each feature is merely an example of a series of equivalent or similar features.

Claims

1. A method for quenching pulleys, characterized in that, The method includes: In response to detecting that the machining pulley is placed on the fixture of the quenching system, the fixture is clamped to fix the machining pulley. The quenching system also includes a machining device that extends into the pulley groove of the machining pulley. The machining device includes a heating component and a quenching cooling component. Open the fixture so that the processing pulley rotates together with the fixture; The heating assembly is activated; the heating assembly is used to heat the edge of the processing pulley. Obtain the temperature value of the processing pulley; When the temperature reaches the processing temperature, the quenching and cooling assembly is turned on and the heating assembly is turned off. The quenching and cooling assembly is used to quench the edge of the processing pulley. Turn off the quenching and cooling assembly; Control the fixture to release the machining pulley.

2. The pulley quenching method according to claim 1, characterized in that, After obtaining the temperature value of the processing pulley, the process further includes: If the first temperature value is detected to have reached the processing temperature, a second temperature value after the first temperature value is recorded, and the timestamp corresponding to the second temperature value is after the timestamp corresponding to the first temperature value. When the number of the second temperature values ​​reaches a preset number, the average value of the temperature values ​​in the current time period is obtained to obtain the comparison temperature value, wherein the current time period is the period in which the number of the second temperature values ​​reaches the preset number; If the difference between the comparison temperature value and the processing temperature is greater than a first preset threshold, then the first temperature value is re-determined; If the difference between the comparison temperature value and the processing temperature is not greater than the first preset threshold, then it is determined that the temperature value has reached the processing temperature.

3. The pulley quenching method according to claim 2, characterized in that, The method further includes: If a third temperature value exists during the processing period, the current rotation speed of the fixture is obtained. The difference between the third temperature value and the processing temperature is greater than a second preset threshold, and the second preset threshold is greater than the first preset threshold. The rotation period of the fixture is calculated based on the current rotation speed; Determine the target timestamp corresponding to the third temperature value; A detection timestamp is generated based on the target timestamp and the rotation period; Obtain the detection temperature value corresponding to the detection timestamp; The number of temperatures whose difference from the processing temperature is greater than the second preset threshold is counted among the detected temperature values; If the temperature value exceeds a threshold value, the rotation speed of the clamp is reduced. If the temperature quantity is not greater than the quantity threshold, the heating component remains on.

4. The pulley quenching method according to claim 3, characterized in that, The method further includes: The detection timestamp is regenerated based on the updated rotation speed of the fixture; Set the processing window according to the detection timestamp; If the third temperature value is greater than the processing temperature, the difference between the processing temperature and the preset temperature error is calculated to obtain the adjustment temperature; If the third temperature value is less than the processing temperature, then the sum of the errors between the processing temperature and the preset temperature is calculated to obtain the adjustment temperature; Within the processing window, the operating temperature of the heating component is adjusted to the regulated temperature.

5. The pulley quenching method according to claim 4, characterized in that, The method further includes: When there are at least two third temperature values, the rotation cycle is updated according to the updated rotation speed of the fixture; Record the third temperature value within a single rotation cycle to form a temperature value set; A time axis is formed based on the duration of the rotation cycle; Mark the third temperature value from the set of temperature values ​​on the time axis; Clustering operations are performed on the third temperature value on the time axis to obtain temperature clusters; The processing window is obtained based on the distribution of the temperature clusters on the time axis.

6. The pulley quenching method according to claim 1, characterized in that, The method further includes: Retrieve historical processing records; Read the historical operating mode of the fixture from the historical processing records; Obtain the current operating mode of the fixture; By comparing the historical operating mode with the current operating mode, the operating difference of the fixture is obtained; If the operational difference is greater than the difference threshold, the fixture is adjusted according to the historical operational mode; If the operational difference is not greater than the difference threshold, then the fixture is controlled to work according to the current operating mode.

7. The pulley quenching method according to claim 6, characterized in that, Adjusting the fixture according to the historical operating mode includes: Extract the historical rotational speed of the fixture from the historical operating mode; Extract the current rotational speed of the fixture from the current operating mode; The target rotation speed is obtained by performing a weighted calculation on the historical rotation speed and the current rotation speed; The clamp is adjusted according to the target rotation speed.

8. A pulley quenching system, characterized in that, The system is used to perform the pulley quenching method as described in any one of claims 1 to 7, comprising: The acquisition module is used to acquire temperature values; A memory for storing the program of the pulley quenching method; The processor and the program in the memory can be loaded and executed by the processor to implement the pulley quenching method.

9. A smart terminal, characterized in that, It includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer program is stored that can be loaded by a processor and execute the method as described in any one of claims 1 to 7.

Citation Information

Patent Citations

  • Pulley part quenching device

    CN107955868A

  • Machining method of cam bearing follower

    CN115747456A

  • Cold rolling pulley

    CN116576191A

  • Lower center cross beam floating device of medium-frequency quenching machine tool

    CN118755916A

  • Heat treatment system, heat treatment method and readable storage medium

    CN119120850A