Automatic intermediate-frequency heating control method and device for automobile half shaft forging and storage medium

Abstract

The invention provides an intermediate frequency heating automatic control method and device for automobile half shaft forging and a storage medium, and the method comprises the steps that half shaft heating time is set, after heating is completed, a half shaft is put into a thermocouple temperature collector, and the automatic control method obtains half shaft temperature data through the collector; judging whether the half shaft reaches the forging temperature according to the data; if so, continuing the next process; if the temperature is not reached and the temperature is too high, cooling and adjusting the heating time; if the temperature is not reached and the temperature is too low, heating is conducted again after the heating power or the heating time is adjusted till the temperature is appropriate, and then the next procedure is conducted. The power of the medium-frequency heating device or the half shaft heating time can be automatically adjusted, it is ensured that the temperature data of the half shaft reaches the forging temperature threshold value range, and therefore the next forging procedure is started. By means of the automatic control method, the precision of half shaft temperature control is improved, and the problem that in a traditional heating mode, the heating temperature is inaccurate due to voltage fluctuation is solved.

Description

Technical Field

[0001] The invention relates to the technical field of semi-axle processing and manufacturing, and in particular to an automatic control method, equipment and storage medium for medium-frequency heating of automobile semi-axle forging. Background Art

[0002] In the process of forging automobile half-axles, the temperature control of the half-axles is a key link to ensure the forging quality and improve production efficiency. Traditional automobile half-axle forging heating adopts thyristor medium-frequency heating technology. For the debugging of the initial forging temperature and the final forging temperature of the forging, an infrared temperature measuring gun is usually used for detection. In this process, manual adjustment of the time relay is an indispensable step, and the heating process of the medium-frequency electric furnace mainly depends on time control. However, the accuracy of this temperature adjustment method based on time control is affected by the fluctuation of the system voltage. When the voltage fluctuates, the heating temperature of the workpiece often cannot meet the process requirements, which easily leads to overheating and underheating problems during the forging process of the workpiece. These problems may further cause quality problems such as decarburization and cracks in the forging, seriously affecting the performance and reliability of the forging. In addition, the method of manually adjusting the time relay is not only cumbersome to operate, but also has low precision and is difficult to accurately control the heating temperature, which further affects the forging quality and limits the improvement of production efficiency. Therefore, a method and device that can automatically control the medium-frequency heating of automobile half-axle forging is needed to solve the problems existing in the traditional heating method and improve the forging quality and production efficiency. Summary of the invention

[0003] The present invention aims to at least solve the technical problem of low half-axle temperature control accuracy in the prior art, and in particular innovatively proposes an automatic control method, device and storage medium for medium-frequency heating of automobile half-axle forging.

[0004] In order to achieve the above-mentioned object of the present invention, the present invention provides an automatic control method for medium-frequency heating of automobile half-axle forging, the method comprising:

[0005] S1, presetting the half-axle heating time, when the heating time is up, placing the heated half-axle in a thermocouple temperature collector, and using the thermocouple temperature collector to collect temperature data of the heated half-axle;

[0006] S2. judging whether the half shaft is within the forging temperature threshold based on the temperature data;

[0007] If yes, the half shaft enters the next forging process;

[0008] S3, if not, and the temperature data is greater than the temperature threshold, cooling the half-axis and adjusting the heating time of the half-axis;

[0009] S4. If not, and the temperature data is less than the temperature threshold, adjust the power of the medium frequency heating device and / or adjust the half-shaft heating time, and reheat the half-shaft until the temperature data of the half-shaft reaches the forging temperature threshold range, and then enter the next forging process.

[0010] As an optional embodiment of the present invention, optionally, adjusting the half-shaft heating time in step S3 includes:

[0011] S301, obtaining the difference between the actual temperature of the half shaft and the temperature threshold of forging, and increasing the heating time in proportion based on the difference;

[0012] S302: After the heating time is increased proportionally, if the temperature data of the half shaft after the second heating is still greater than the forging temperature threshold, an abnormal operation signal of the medium frequency heating device is issued.

[0013] As an optional embodiment of the present invention, optionally, the expression for proportionally increasing the heating time in step S301 is:

[0014] ΔT=T actual -T threshold

[0015]

[0016] Where ΔT represents the difference between the actual temperature of the semi-axle and the forging temperature threshold, T actual Indicates the actual temperature of the semi-axis, T threshold represents the forging temperature threshold, t adjusted Indicates the adjusted heating time, t original represents the preset half-axis heating time, and k, α and β represent adjustment coefficients.

[0017] As an optional embodiment of the present invention, optionally, in step S4, adjusting the power of the medium frequency heating device or / and adjusting the half-shaft heating time includes:

[0018] S401, the half-axis heating time remains unchanged, and the power of the medium frequency heating device is increased;

[0019] S402: After the power of the medium frequency heating device is increased to the maximum power, if the temperature data of the half-shaft still does not reach the forging temperature threshold range, the power of the medium frequency heating device is adjusted to the rated power, and the half-shaft heating time is increased according to the actual proportion;

[0020] S403: After the half-shaft heating time is increased according to the actual proportion, if the temperature data of the half-shaft still does not reach the forging temperature threshold range, an abnormal operation signal of the medium frequency heating device is issued.

[0021] As an optional embodiment of the present invention, optionally, the thermocouple temperature collector includes:

[0022] A first mounting plate, arranged on one side of the medium frequency heating device;

[0023] A telescopic assembly, arranged on the telescopic first mounting plate;

[0024] A second mounting plate, disposed on the output shaft of the telescopic assembly;

[0025] A thermocouple is arranged on the telescopic second mounting plate through a flange, and a collection end of the thermocouple passes through the first mounting plate and is movably connected to the first mounting plate;

[0026] A controller is connected to the telescopic assembly and is used for adaptively adjusting the distance between the thermocouple and the semi-axis.

[0027] As an optional embodiment of the present invention, optionally, in step S1, using the thermocouple temperature collector to collect temperature data of the rear half shaft after heating includes:

[0028] S101, placing the heated half-axis on the collection end of the thermocouple using a robotic arm;

[0029] S102, the controller adaptively adjusts the distance between the collection end of the thermocouple and the heated half-axis;

[0030] S103: When the distance between the collection end of the thermocouple and the heated half-axis is adjusted to within a preset range, the thermocouple starts to collect temperature data.

[0031] As an optional embodiment of the present invention, optionally, the controller adaptively adjusts the distance between the collection end of the thermocouple and the heated semi-axis includes:

[0032] Comparing the distance between the thermocouple's collection end and the semi-axis based on a preset distance threshold;

[0033] When the distance between the collection end of the thermocouple and the heated semi-axis is greater than the distance threshold, the controller drives the thermocouple to move in the direction of the semi-axis based on the telescopic assembly until the distance between the collection end of the thermocouple and the heated semi-axis is within the distance threshold range;

[0034] When the distance between the collecting end of the thermocouple and the heated semi-axis is less than the distance threshold, the controller drives the thermocouple to move away from the semi-axis based on the telescopic component until the distance between the collecting end of the thermocouple and the heated semi-axis is within the distance threshold range.

[0035] As an optional embodiment of the present invention, optionally, the expression for the controller to adaptively adjust the distance between the collection end of the thermocouple and the heated semi-axis is:

[0036]

[0037] Among them, d adjusted (t) represents the distance of the thermocouple collection end after adjustment at time t, d threshold represents the preset distance threshold, sgn(·) represents the sign function, d current represents the current position of the thermocouple acquisition end, χ and γ both represent nonlinear adjustment coefficients, e -δt represents the attenuation function, δ represents the attenuation coefficient, It represents the integral of velocity v from 0 to time t, that is, the total distance the collecting end of the thermocouple moves within time t.

[0038] In another aspect, the present invention further provides a computer device, comprising:

[0039] processor;

[0040] a memory for storing processor-executable instructions;

[0041] Wherein, the processor is configured to implement the automatic control method of medium-frequency heating for forging of automobile half-axle when executing the executable instructions.

[0042] In another aspect, the present invention further provides a computer-readable storage medium, comprising:

[0043] a memory having a computer program stored thereon;

[0044] A processor is used to execute the program in the memory to implement the automatic control method for medium-frequency heating of automobile half-axle forging.

[0045] Beneficial effects of the present invention: The present invention firstly accurately collects the temperature data of the half-shaft after heating through the preset half-shaft heating time and the thermocouple temperature collector, thereby realizing real-time monitoring of the half-shaft heating temperature. When the temperature data is not within the forging temperature threshold, the present invention can automatically adjust the power of the medium frequency heating device or the half-shaft heating time to ensure that the temperature data of the half-shaft reaches the forging temperature threshold range, thereby entering the next forging process. This automatic control method not only improves the accuracy of the half-shaft temperature control, but also avoids the problem of inaccurate heating temperature caused by voltage fluctuations in the traditional heating method.

[0046] In addition, the thermocouple temperature collector in the present invention adaptively adjusts the distance between the thermocouple and the semi-axis through the controller, thereby ensuring the accuracy of temperature collection.

[0047] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0049] Figure 1 This is a flow chart of an automatic control method for medium-frequency heating of automobile half-axle forging according to the present invention;

[0050] Figure 2 It is a structural schematic diagram of the thermocouple temperature collector of the present invention.

[0051] In the figure: 1. first mounting plate, 2. telescopic assembly, 3. second mounting plate, 4. flange, 5. thermocouple. DETAILED DESCRIPTION

[0052] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] Example 1

[0054] like Figure 1 As shown, a method for automatically controlling medium-frequency heating of automobile half-axle forging comprises:

[0055] S1, presetting the half-axle heating time, when the heating time is up, placing the heated half-axle in a thermocouple temperature collector, and using the thermocouple temperature collector to collect temperature data of the heated half-axle;

[0056] like Figure 2 As shown, it should be noted that, in this embodiment, the thermocouple temperature collector can accurately measure the temperature of the heated rear axle. The thermocouple 5 is mounted on a retractable second mounting plate 3, which is driven by the telescopic assembly 2. The telescopic assembly 2 can accurately adjust the distance between the collection end of the thermocouple 5 and the axle according to the instructions of the controller. This design not only improves the accuracy of temperature measurement, but also ensures that reliable temperature data can be obtained under different heating conditions.

[0057] Furthermore, the controller uses an advanced adaptive algorithm when adjusting the distance between the thermocouple 5 and the semi-axis. The algorithm can compare the actual distance between the acquisition end of the thermocouple 5 and the semi-axis in real time based on a preset distance threshold, and issue an adjustment instruction accordingly. When the actual distance is greater than the distance threshold, the controller will drive the telescopic component 2 to move the thermocouple 5 toward the semi-axis; when the actual distance is less than the distance threshold, the controller will drive the telescopic component 2 to move the thermocouple 5 away from the semi-axis. This adaptive adjustment mechanism ensures that the acquisition end of the thermocouple 5 always remains in the best measurement position, thereby improving the accuracy and stability of the temperature data.

[0058] S2. judging whether the half shaft is within the forging temperature threshold based on the temperature data;

[0059] If yes, the half shaft enters the next forging process;

[0060] S3, if not, and the temperature data is greater than the temperature threshold, cooling the half-axis and adjusting the heating time of the half-axis;

[0061] S4. If not, and the temperature data is less than the temperature threshold, adjust the power of the medium frequency heating device and / or adjust the half-shaft heating time, and reheat the half-shaft until the temperature data of the half-shaft reaches the forging temperature threshold range, and then enter the next forging process.

[0062] It should be noted that in steps S2, S3 and S4, the automatic control method for medium-frequency heating of automobile half-axle forging of this embodiment realizes precise control of the heating temperature of the half-axle through accurate temperature data collection and adaptive thermocouple adjustment mechanism. In step S2, based on the temperature data obtained by the thermocouple temperature collector, the system can quickly determine whether the temperature of the half-axle is within the preset forging temperature threshold. This judgment process is highly automated, greatly reducing manual intervention and improving production efficiency and accuracy.

[0063] If the half-shaft temperature meets the forging requirements, it will directly enter the next forging process without additional processing. This process design is simple and efficient, ensuring the continuity and stability of the production line.

[0064] If the half-shaft temperature is too high and exceeds the forging temperature threshold, the system will immediately start the cooling process and adjust the half-shaft heating time accordingly. This step effectively avoids the problem of overburning of the half-shaft due to excessive temperature and ensures the forging quality. The specific methods of cooling treatment may include but are not limited to air cooling, water cooling or natural cooling. The specific choice depends on the actual situation of the production site and the requirements for cooling efficiency. At the same time, the adjustment of the half-shaft heating time needs to be based on the degree of overheating and historical heating data, and is automatically calculated by a preset algorithm to ensure that the next heating can be closer to the ideal forging temperature.

[0065] If the half-shaft temperature is too low and does not reach the forging temperature threshold, the system will reheat the half-shaft by adjusting the power of the medium frequency heating device or the half-shaft heating time. During this process, the system will intelligently select the most appropriate heating strategy based on the difference between the actual temperature and the forging temperature threshold to ensure that the half-shaft temperature can quickly and accurately meet the forging requirements. At the same time, the system will monitor the heating process in real time. Once the medium frequency heating device is found to be working abnormally, an alarm will be issued immediately so that the operator can take timely measures to deal with it.

[0066] In summary, the automatic control method for medium-frequency heating of automobile half-axle forging of this embodiment first accurately collects the temperature data of the half-axle after heating through the preset half-axle heating time and the thermocouple temperature collector, thereby realizing real-time monitoring of the half-axle heating temperature. When the temperature data is not within the forging temperature threshold, the present invention can automatically adjust the power of the medium-frequency heating device or the half-axle heating time to ensure that the temperature data of the half-axle reaches the forging temperature threshold range, thereby entering the next forging process. This automatic control method not only improves the accuracy of the half-axle temperature control, but also avoids the problem of inaccurate heating temperature caused by voltage fluctuations in the traditional heating method.

[0067] As an optional embodiment of the present invention, optionally, adjusting the half-shaft heating time in step S3 includes:

[0068] S301, obtaining the difference between the actual temperature of the half shaft and the temperature threshold of forging, and increasing the heating time in proportion based on the difference;

[0069] It should be noted that in step S301, the strategy of increasing the heating time in proportion is intended to dynamically adjust the heating time according to the deviation between the actual temperature of the half-shaft and the forging temperature threshold, so as to more accurately control the heating temperature of the half-shaft. Through temperature monitoring and timely adjustment of the heating time, it can be ensured that the half-shaft can reach the ideal forging temperature after reheating, thereby improving the forging quality and production efficiency. In the specific operation, the system will first calculate the difference between the actual temperature of the half-shaft and the forging temperature threshold, which reflects the deviation between the current heating state and the ideal forging state. Subsequently, the system will calculate the heating time that needs to be increased based on the difference according to the proportional coefficient. The setting of the proportional coefficient needs to take into account factors such as the thermophysical properties of the half-shaft material, the heating efficiency of the heating device, and the overall rhythm of the production line, so as to ensure that the adjusted heating time can meet the forging temperature requirements without causing excessive delays in the production cycle.

[0070] S302: After the heating time is increased proportionally, if the temperature data of the half shaft after the second heating is still greater than the forging temperature threshold, an abnormal operation signal of the medium frequency heating device is issued.

[0071] In step S302, after the heating time is increased proportionally, if the temperature data of the half shaft after the second heating is still greater than the forging temperature threshold, the system will issue a signal indicating that the medium frequency heating device is working abnormally. This design is intended to promptly detect and handle abnormal conditions during the heating process to prevent problems such as overburning or insufficient heating of the half shaft caused by equipment failure or operational errors. Through real-time monitoring and abnormal alarms, the stability and reliability of the production line can be further improved to ensure the continued stability of forging quality.

[0072] As an optional embodiment of the present invention, optionally, the expression for proportionally increasing the heating time in step S301 is:

[0073] ΔT=T actual -T threshold

[0074]

[0075] Wherein, ΔT represents the difference between the actual temperature of the half shaft and the forging temperature threshold;

[0076] T actual Indicates the actual temperature of the half-axis;

[0077] T threshold Indicates the forging temperature threshold;

[0078] t adjusted Indicates the adjusted heating time;

[0079] t original Indicates the preset half-shaft heating time;

[0080] k represents the adjustment coefficient, which is used to control the proportion of heating time increase (this coefficient can be adjusted according to actual conditions);

[0081] α and β are adjustment coefficients used to control the complexity and nonlinearity of the expression.

[0082] The above expression introduces a logarithmic function, which can make the growth slow down when the difference is large; the piecewise function part ensures that when ΔT>0 (i.e. the temperature is too high), the heating time is directly increased proportionally; and when ΔT≤0 (i.e. the temperature is too low), a Sigmoid function is used to To smoothly adjust the growth ratio and avoid excessive adjustments when it is close to 0.

[0083] As an optional embodiment of the present invention, optionally, in step S4, adjusting the power of the medium frequency heating device or / and adjusting the half-shaft heating time includes:

[0084] S401, the half-axis heating time remains unchanged, and the power of the medium frequency heating device is increased;

[0085] It should be noted that in step S401, when the temperature of the half-shaft is too low and does not reach the forging temperature threshold, first try to keep the half-shaft heating time unchanged and increase the power of the medium-frequency heating device. This strategy aims to quickly increase the temperature of the half-shaft by improving the heating efficiency so that it can meet the forging requirements as soon as possible. In specific operations, the system will intelligently calculate the power of the medium-frequency heating device that needs to be increased based on the difference between the actual temperature of the half-shaft and the forging temperature threshold. This calculation process needs to take into account factors such as the thermophysical properties of the half-shaft material, the power adjustment range of the heating device, and the overall energy consumption requirements of the production line to ensure that the adjusted power can meet the forging temperature requirements without causing problems such as excessive energy consumption or equipment overload. Through real-time monitoring and intelligent adjustment, the flexibility and energy efficiency of the production line can be further improved to ensure the continuous stability of the forging quality.

[0086] S402: After the power of the medium frequency heating device is increased to the maximum power, if the temperature data of the half-shaft still does not reach the forging temperature threshold range, the power of the medium frequency heating device is adjusted to the rated power, and the half-shaft heating time is increased according to the actual proportion;

[0087] It should be noted that in step S402, when the power of the medium frequency heating device is increased to the maximum power, if the temperature data of the half-shaft still does not reach the forging temperature threshold range, the system adopts a more prudent adjustment strategy. First, the power of the medium frequency heating device is adjusted back to the rated power to avoid overheating or damage to the equipment caused by long-term high-power operation. Subsequently, the system will increase the heating time of the half-shaft in proportion to the difference between the actual temperature of the half-shaft and the forging temperature threshold. This step is intended to compensate for the lack of power adjustment by extending the heating time to ensure that the half-shaft can be fully heated to meet the forging temperature requirements. In specific operations, the setting of the proportional coefficient needs to comprehensively consider factors such as the thermophysical properties of the half-shaft material, the heating efficiency, and the overall rhythm of the production line to ensure that the adjusted heating time can effectively increase the temperature of the half-shaft without causing excessive delays in the production cycle. Through this series of intelligent adjustment strategies, the present embodiment can achieve precise control of the heating temperature of the half-shaft to ensure the continuous stability of the forging quality.

[0088] S403: After the half-shaft heating time is increased according to the actual proportion, if the temperature data of the half-shaft still does not reach the forging temperature threshold range, an abnormal operation signal of the medium frequency heating device is issued.

[0089] It should be noted that in step S403, after the half-shaft heating time is increased according to the actual proportion, if the temperature data of the half-shaft still fails to reach the forging temperature threshold range, this indicates that there may be an abnormal operation of the medium frequency heating device or other unforeseen failures. At this time, the system promptly sends out an abnormal operation signal of the medium frequency heating device, which is an important protection mechanism for the production process. This design is intended to quickly attract the attention of operators so that they can immediately intervene to check and eliminate potential equipment failures or operational problems.

[0090] The ways of sending abnormal signals may include but are not limited to sound and light alarms, system log records, and sending alarm information to management personnel. Through these means, it can be ensured that operators can quickly locate the problem and take appropriate measures. At the same time, this step also provides valuable data support for subsequent fault analysis and equipment maintenance, which helps to further improve the stability and reliability of the production line.

[0091] As an optional embodiment of the present invention, optionally, the thermocouple temperature collector includes:

[0092] The first mounting plate 1 is arranged on one side of the medium frequency heating device; Figure 2 As shown, the first mounting plate 1 is fixed to one side of the medium frequency heating device through a support frame and is made of high temperature resistant metal material.

[0093] The telescopic assembly 2 is arranged on the telescopic first mounting plate 1; Figure 2 As shown, the telescopic assembly 2 of this embodiment is a cylinder, and two of them are installed, respectively installed on both sides of the first mounting plate 1. The installation of two telescopic assemblies 2 improves the stability when the thermocouple 5 moves.

[0094] A second mounting plate 3 is arranged on the output shaft of the telescopic assembly 2;

[0095] like Figure 2 As shown, in this embodiment, the second mounting plate 3 is mounted on the output shafts of the two telescopic assemblies 2 and moves synchronously with the output shafts of the telescopic assemblies 2 .

[0096] Thermocouple 5 is arranged on the telescopic second mounting plate 3 through flange 4, and the collecting end of the thermocouple 5 passes through the first mounting plate 1 and is movably connected to the first mounting plate 1;

[0097] In this embodiment, the thermocouple 5 is a temperature sensor, which is installed on the second mounting plate 3 and moves up and down synchronously with the second mounting plate 3. The distance between the thermocouple 5 collection end and the heated rear axle is adjusted to ensure the accuracy of temperature data collection. The thermocouple 5 is firmly connected to the second mounting plate 3 through the flange 4, and the collection end of the thermocouple 5 passes through the first mounting plate 1 to collect the temperature of the axle placed at the bottom of the first mounting plate 1 by the mechanical arm. The movable connection between the collection end of the thermocouple 5 and the first mounting plate 1 ensures that the thermocouple 5 can be smoothly and accurately moved to the optimal measurement position under the drive of the telescopic component 2, thereby effectively improving the stability and accuracy of temperature data collection. In addition, the thermocouple temperature collector has a compact structure and is easy to install. It is suitable for automobile axle forging production lines of various sizes, and provides strong support for realizing automated and intelligent temperature monitoring.

[0098] The controller is connected to the telescopic assembly 2 and is used for adaptively adjusting the distance between the thermocouple 5 and the semi-axis.

[0099] In this embodiment, a distance meter is also installed at the bottom of the first mounting plate 1, which is used to monitor the distance between the thermocouple 5 acquisition end and the semi-axis in real time, and send the distance data to the controller. The controller adaptively adjusts the distance between the thermocouple 5 and the semi-axis by controlling the telescopic action of the telescopic component 2 according to the preset distance threshold and the received distance data. This design is intended to ensure that the thermocouple 5 can always remain in the best measurement position, thereby further improving the accuracy and stability of temperature data acquisition. In specific operation, when the distance meter detects that the distance between the thermocouple 5 acquisition end and the semi-axis exceeds the preset distance threshold, the controller will immediately start the adjustment process, and by controlling the telescopic length of the telescopic component 2, the thermocouple 5 acquisition end quickly returns to the preset optimal measurement position. This adjustment process is highly automated, does not require manual intervention, and greatly improves production efficiency and accuracy. At the same time, the thermocouple temperature collector also has a fault self-detection function. Once a fault is detected in a key component such as the telescopic component 2 or the distance meter, the system will immediately issue an alarm so that the operator can take timely measures to deal with it. In summary, the thermocouple temperature collector of this embodiment realizes accurate monitoring of the heating temperature of the half-axle by adaptively adjusting the distance between the thermocouple and the half-axle, providing a strong guarantee for improving the forging quality and production efficiency of automobile half-axles.

[0100] As an optional embodiment of the present invention, optionally, in step S1, using the thermocouple temperature collector to collect temperature data of the rear half shaft after heating includes:

[0101] S101, placing the heated half-axis on the collection end of the thermocouple 5 by using a robotic arm;

[0102] It should be noted that in step S101, in the specific operation, the system will intelligently calculate the moving path and placement position of the robot arm according to the position of the heating device and the size of the semi-axle. Subsequently, the robot arm will place the heated semi-axle stably and accurately at the collection end of the thermocouple 5 according to the preset program. The use of the robot arm greatly improves the automation level of the production line, reduces the error and labor intensity of manual operation, and further improves production efficiency.

[0103] S102, the controller adaptively adjusts the distance between the collection end of the thermocouple 5 and the heated half-axis;

[0104] It should be noted that in step S102, after the acquisition end of the thermocouple 5 contacts the heated half-shaft or reaches the preset optimal measurement position, the controller stops the action of the telescopic component 2. This step ensures that the thermocouple 5 can accurately and stably collect the temperature data of the half-shaft after heating, providing a reliable basis for subsequent temperature monitoring and adjustment. At the same time, the design of adaptive adjustment also greatly improves the flexibility and accuracy of temperature data acquisition, so that the system can adapt to half-shafts of different sizes and shapes, further broadening the scope of application.

[0105] S103 , when the distance between the collection end of the thermocouple 5 and the heated semi-axis is adjusted to within a preset range, the thermocouple 5 starts to collect temperature data.

[0106] It should be noted that in step S103, when the distance between the collecting end of the thermocouple 5 and the heated half-axis is adjusted to within the preset range and the system confirms that the optimal measurement position has been reached, the thermocouple 5 will immediately start the temperature data collection function to ensure that the actual temperature of the half-axis after heating can be captured accurately and quickly.

[0107] In addition, in order to improve the efficiency and accuracy of temperature data collection, this system also uses advanced filtering and calibration technology. By filtering the collected temperature data, noise and interference can be effectively removed, and the accuracy and reliability of the data can be improved. At the same time, the system will regularly calibrate the thermocouple 5 to ensure that its measurement accuracy always remains within the specified range.

[0108] As an optional embodiment of the present invention, optionally, the controller adaptively adjusts the distance between the collection end of the thermocouple 5 and the heated semi-axis, including:

[0109] Comparison is performed based on a preset distance threshold and the distance between the collection end of the thermocouple 5 and the semi-axis;

[0110] When the distance between the collecting end of the thermocouple 5 and the heated semi-axis is greater than the distance threshold, the controller drives the thermocouple 5 to move in the semi-axis direction based on the telescopic component 2 until the distance between the collecting end of the thermocouple 5 and the heated semi-axis is within the distance threshold range;

[0111] When the distance between the collecting end of the thermocouple 5 and the heated semi-axis is less than the distance threshold, the controller drives the thermocouple to move away from the semi-axis based on the telescopic component 2 until the distance between the collecting end of the thermocouple 5 and the heated semi-axis is within the distance threshold range.

[0112] As an optional embodiment of the present invention, optionally, the expression for the controller to adaptively adjust the distance between the collection end of the thermocouple 5 and the heated semi-axis is:

[0113]

[0114] Among them, d adjusted (t) represents the distance after the adjustment of the collection end of the thermocouple 5 at time t;

[0115] d threshold Indicates the preset distance threshold;

[0116] sgn(·) represents the sign function. When d current -d threshold >0, sgn(d current -d threshold )=1; when d current -d threshold When sgn(d current -d threshold )=-1; when d current -d threshold = 0, sgn(d current -d threshold )=0, which is used to determine in which direction the thermocouple should move;

[0117] d current Indicates the current position of the acquisition end of thermocouple 5;

[0118] Both χ and γ represent nonlinear adjustment coefficients;

[0119] e -δt Represents the decay function, which is used to control the deceleration process when the thermocouple approaches the target speed.

[0120] δ represents the attenuation coefficient;

[0121] It represents the integral of the speed v from 0 to time t, that is, the total distance that the collecting end of the thermocouple 5 moves within the time t.

[0122] is an additional term used to provide additional displacement when necessary (e.g., during the initial acceleration phase).

[0123] Example 2

[0124] A computer device comprising:

[0125] processor;

[0126] a memory for storing processor-executable instructions;

[0127] Wherein, the processor is configured to implement the automatic control method of medium-frequency heating for forging of automobile half-axle in Example 1 when executing the executable instructions.

[0128] It should be noted that the computer device includes: a processor, a memory, and the computer device may also include one or more of a multimedia component, an input / output (I / O) interface, and a communication component.

[0129] Among them, the processor is used to control the overall operation of the computer device to complete all or part of the steps in the above-mentioned big data-based factory equipment automated testing method.

[0130] The memory is used to store various types of data to support operations on the computer device, which data may include, for example, instructions for any application or method operating on the computer device, as well as application-related data; the memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0131] The multimedia component may include a screen and an audio component, wherein the screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals; for example, the audio component may include a microphone for receiving external audio signals, and the received audio signals may be further stored in a memory or sent via a communication component; the audio component also includes at least one speaker for outputting audio signals.

[0132] The I / O interface provides an interface between the processor and other interface modules, which may be a keyboard, a mouse, buttons, etc.; these buttons may be virtual buttons or physical buttons.

[0133] The communication component is used for wired or wireless communication between the computer device and other devices; wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G or 5G, or a combination of one or more of them, so the corresponding communication component may include: Wi-Fi module, Bluetooth module, NFC module, mobile phone communication module.

[0134] As a preferred solution of this embodiment, the computer device can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned big data-based factory equipment automation testing method.

[0135] Example 3

[0136] A computer-readable storage medium, comprising:

[0137] a memory having a computer program stored thereon;

[0138] The processor is used to execute the program in the memory to implement the automatic control method of medium-frequency heating for forging of automobile half-axles in Example 1.

[0139] It should be noted that the electronic device according to the embodiment of the present disclosure includes a processor and a memory for storing processor executable instructions, wherein the processor is configured to implement any of the above-mentioned medium-frequency heating automatic control methods for automobile half-axle forging when executing the executable instructions.

[0140] Here, it should be noted that the number of processors can be one or more. At the same time, the electronic device in the embodiment of the present disclosure may also include an input device and an output device. Among them, the processor, memory, input device and output device may be connected through a bus or in other ways, which are not specifically limited here.

[0141] As a computer-readable storage medium, the memory can be used to store software programs, computer executable programs and various modules, such as the program or module corresponding to the medium-frequency heating automatic control method for forging an automobile half-axle in the embodiment of the present disclosure. The processor executes various functional applications and data processing of the electronic device by running the software programs or modules stored in the memory.

[0142] The input device can be used to receive input numbers or signals. The signal can be a key signal related to user settings and function control of the device / terminal / server. The output device can include a display device such as a display screen.

[0143] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A medium frequency heating automatic control method for automobile half-axle forging, characterized in that: The method comprises: S1, presetting the half-axle heating time, when the heating time is up, placing the heated half-axle in a thermocouple temperature collector, and using the thermocouple temperature collector to collect temperature data of the heated half-axle; S2. judging whether the half shaft is within the forging temperature threshold based on the temperature data; If yes, the half shaft enters the next forging process; S3, if not, and the temperature data is greater than the temperature threshold, cooling the half-axis and adjusting the heating time of the half-axis; S4. If not, and the temperature data is less than the temperature threshold, adjust the power of the medium frequency heating device and / or adjust the half-shaft heating time, and reheat the half-shaft until the temperature data of the half-shaft reaches the forging temperature threshold range, and then enter the next forging process.

2. The medium frequency heating automatic control method for forging an automobile half-axle according to claim 1, characterized in that: Adjusting the half-axle heating time in step S3 includes: S301, obtaining the difference between the actual temperature of the half shaft and the temperature threshold of forging, and increasing the heating time in proportion based on the difference; S302: After the heating time is increased proportionally, if the temperature data of the half shaft after the second heating is still greater than the forging temperature threshold, an abnormal operation signal of the medium frequency heating device is issued.

3. The method for automatic control of medium frequency heating for forging of an automobile half-axle as claimed in claim 2, characterized in that: The expression for proportionally increasing the heating time in step S301 is: ΔT=T actual -T threshold Where ΔT represents the difference between the actual temperature of the semi-axle and the forging temperature threshold, T actual Indicates the actual temperature of the semi-axis, T threshold represents the forging temperature threshold, t adjusted represents the adjusted heating time, t original represents the preset half-axis heating time, and k, α and β represent adjustment coefficients.

4. The method for automatic control of medium frequency heating for forging of an automobile half-axle as claimed in claim 2, characterized in that: In step S4, adjusting the power of the medium frequency heating device and / or adjusting the half-shaft heating time includes: S401, the half-axis heating time remains unchanged, and the power of the medium frequency heating device is increased; S402: After the power of the medium frequency heating device is increased to the maximum power, if the temperature data of the half-shaft still does not reach the forging temperature threshold range, the power of the medium frequency heating device is adjusted to the rated power, and the half-shaft heating time is increased according to the actual proportion; S403: After the half-shaft heating time is increased according to the actual proportion, if the temperature data of the half-shaft still does not reach the forging temperature threshold range, an abnormal operation signal of the medium frequency heating device is issued.

5. The method for automatic control of medium frequency heating for forging of an automobile half-axle as claimed in claim 1, characterized in that: The thermocouple temperature collector comprises: A first mounting plate (1) is arranged on one side of the medium frequency heating device; A telescopic assembly (2) is arranged on the telescopic first mounting plate (1); A second mounting plate (3) is arranged on the output shaft of the telescopic assembly (2); A thermocouple (5) is arranged on the telescopic second mounting plate (3) via a flange (4), and a collecting end of the thermocouple (5) passes through the first mounting plate (1) and is movably connected to the first mounting plate (1); A controller is connected to the telescopic component (2) and is used to adaptively adjust the distance between the thermocouple (5) and the semi-axis.

6. The method for automatic control of medium frequency heating for forging of an automobile half-axle as claimed in claim 5, characterized in that: In step S1, using the thermocouple temperature collector to collect temperature data of the heated rear half shaft includes: S101, using a robotic arm to place the heated half-shaft on the collection end of the thermocouple (5); S102, the controller adaptively adjusts the distance between the collection end of the thermocouple (5) and the heated half-axis; S103: When the distance between the collection end of the thermocouple (5) and the heated semi-axis is adjusted to within a preset range, the thermocouple (5) starts collecting temperature data.

7. The medium frequency heating automatic control method for forging an automobile half-axle as claimed in claim 5 or 6, characterized in that: The controller adaptively adjusts the distance between the collection end of the thermocouple (5) and the heated half-axis, including: Comparing the distance between the collection end of the thermocouple (5) and the semi-axis based on a preset distance threshold; When the distance between the collection end of the thermocouple (5) and the heated semi-axis is greater than the distance threshold, the controller drives the thermocouple (5) to move in the semi-axis direction based on the telescopic component (2) until the distance between the collection end of the thermocouple (5) and the heated semi-axis is within the distance threshold range; When the distance between the collection end of the thermocouple (5) and the heated semi-axis is less than the distance threshold, the controller drives the thermocouple (5) to move away from the semi-axis based on the telescopic component (2) until the distance between the collection end of the thermocouple (5) and the heated semi-axis is within the distance threshold.

8. The method for automatic control of medium frequency heating for forging of an automobile half-axle as claimed in claim 7, characterized in that: The expression for the controller to adaptively adjust the distance between the collection end of the thermocouple (5) and the heated semi-axis is: Among them, d adjusted (t) represents the distance after adjustment of the collection end of the thermocouple (5) at time t, d threshold represents the preset distance threshold, sgn(·) represents the sign function, d current represents the current position of the acquisition end of the thermocouple (5), χ and γ both represent nonlinear adjustment coefficients, e -δt represents the attenuation function, δ represents the attenuation coefficient, It represents the integral of velocity v from 0 to time t, that is, the total distance moved by the collecting end of the thermocouple (5) within time t.

9. A computer device, characterized in that: include: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to implement the medium-frequency heating automatic control method for forging an automobile half-axle according to any one of claims 1 to 8 when executing the executable instructions.

10. A computer-readable storage medium, characterized in that: include: a memory having a computer program stored thereon; A processor is used to execute the program in the memory to implement the automatic control method for medium-frequency heating of automobile half-axle forging according to any one of claims 1 to 8.

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