Method and system for monitoring hot die forging press

Abstract

The invention relates to the technical field of press monitoring, in particular to a monitoring method and system for a hot die forging press, and the method comprises the steps: carrying out the regional division of the hot die forging press; respectively collecting monitoring data of each area; processing and analyzing the monitoring data of the kinematic pair area to obtain temperature dangerous point information and a temperature trend curve of the kinematic pair area; analyzing and processing the monitoring data of the oil product area, a preset oil product threshold value and a service life threshold value to obtain oil product state information; according to the state of the clutch brake, the monitoring data of the clutch brake area and a preset limit displacement value are processed and analyzed, and the abrasion loss of a friction plate of the clutch brake is obtained; and comparing the monitoring data of the tonnage monitoring area with a preset allowable tonnage, and judging whether overload occurs or not according to a comparison result. Real-time monitoring and early warning analysis are carried out on all the areas, the working states of all the areas of the system can be known in time, and the stability of the working state of the press is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of press monitoring, and in particular to a monitoring method and system for a hot die forging press. Background Art

[0002] Hot die forging presses are widely used in the manufacturing industry, and are important equipment for stamping processes. Since stamping production lines are continuous production, each stamping production line is responsible for the stamping operation of fixed dies. Failure of hot die forging presses will cause the entire line to stop production for maintenance, resulting in high maintenance costs, more cumbersome line change production costs, and huge production stoppage losses. Real-time monitoring of the operating status of mechanical presses is of great significance to reducing economic losses and timely discovering and troubleshooting.

[0003] In the prior art, the temperature or tonnage of the hot forging press is monitored. When it is detected that the temperature value or tonnage exceeds a threshold, the hot forging press is urgently stopped. Although this reduces the failure rate of the hot forging press, it is difficult to determine the cause of the hot forging press failure in a timely manner.

[0004] Therefore, it is necessary to provide a new monitoring method and system for hot die forging presses. Summary of the invention

[0005] Based on the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present invention is to provide a monitoring method and system for a hot die forging press, to perform real-time monitoring and early warning analysis on each area respectively, to timely understand the working status of each area of ​​the system, to achieve the monitoring of the working status of the hot die forging press and the controllable operation status, thereby ensuring the stability of the working status of the press.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a monitoring method based on a hot die forging press, comprising:

[0007] Divide the hot die forging press into areas, including the kinematic area, oil area, clutch and brake area, and tonnage monitoring area;

[0008] S2, collects monitoring data of the kinematic area, oil area, clutch and brake area, and tonnage monitoring area respectively;

[0009] S3, processing and analyzing the monitoring data of the motion sub-area to obtain the temperature danger point information and temperature trend curve of the motion sub-area;

[0010] S4, analyzing and processing the monitoring data of the oil product area with the preset oil product threshold and life threshold to obtain oil product status information;

[0011] S5, according to the state of the clutch brake, the monitoring data of the clutch brake area and the preset limit displacement value are processed and analyzed to obtain the wear amount of the clutch brake friction plate;

[0012] S6, comparing the monitoring data of the tonnage monitoring area with the preset allowable tonnage, and judging whether it is overloaded according to the comparison result.

[0013] Furthermore, in S2, the monitoring data of the kinematic area, the oil area, the clutch brake area and the tonnage monitoring area are collected respectively, including:

[0014] Step S21, collecting temperature data of multiple structural positions of the motion sub-region through a temperature sensor;

[0015] Step S22, collecting dielectric constant data of lubricating oil in the oil product area through an oil product sensor;

[0016] Step S23, collecting axial displacement data of the clutch brake pressure plate in the clutch brake area through a displacement sensor;

[0017] Step S24, collecting the tonnage value of the tonnage monitoring area through the tonnage detection sensor.

[0018] Furthermore, the temperature data of multiple structural positions in the kinematic pair area are collected by temperature sensors, including: collecting temperature data of the kinematic pair area including the guide rail sliding pair, crankshaft support structure, crankshaft bearing, clutch friction plate and flywheel bearing position.

[0019] Furthermore, in S3, the monitoring data of the motion sub-area is processed and analyzed, including: since the monitoring data of the motion sub-area includes temperature data of multiple structural positions, over-limit judgment and temperature danger point judgment are performed on the temperature data of multiple position points, and address offset and cyclic comparison methods are used to realize the processing of temperature data of any multiple points.

[0020] Furthermore, in S3, the temperature danger point information includes, for the measuring points where the temperature exceeds the limit, displaying the position of the measuring point with the largest excess and the corresponding equilibrium temperature; for the case where the temperatures of the moving pairs are all lower than their equilibrium temperatures, an early warning is given of the position where the current temperature is closest to the equilibrium temperature.

[0021] Furthermore, in S4, the monitoring data of the oil product area is analyzed and processed with the preset oil product threshold and life threshold, including: firstly initializing and setting the life threshold T of the lubricating oil; max , the oil quality threshold E1 of "good" lubricating oil quality and the oil quality threshold E2 of "average" lubricating oil quality; then perform data anti-shake processing and convert the dielectric constant E of the current lubricating oil into rCalculate and determine the lubricant usage time T0; if the current lubricant dielectric constant is E r The lubricant quality is less than the "good" oil threshold E1 and the lubricant usage time T0 does not reach the lubricant life threshold T max , the oil is considered good; if the dielectric constant of the current lubricating oil is E r The lubricant quality is greater than or equal to the oil quality threshold E1 of "good" but less than the oil quality threshold E2 of "average", and the lubricant usage time T0 does not reach the lubricant life threshold T max , the oil is judged to be of average quality; if the dielectric constant of the current lubricating oil is E r The oil quality threshold E2 of lubricant quality “average” is equal to or greater than the lubricant service life threshold T0 of lubricant reaches or exceeds the lubricant service life threshold T max , which corresponds to the bad oil quality or the over-limit time.

[0022] Further, in S5, the monitoring data of the clutch brake area and the preset limit displacement value are processed and analyzed according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate, including:

[0023] First, initialization is performed to obtain the displacement sensor data x, that is, the axial displacement data of the clutch brake pressure plate and determine the clutch working state, which includes the clutch state and the brake state; and the initial value is set, including the displacement value x in the initial clutch state z and the displacement value x in the initial braking state c ; When the machine tool is working normally, perform data anti-shake processing; then judge the clutch state, brake state, spindle state and working condition, and calculate the displacement difference δ = x z -x or δ = x c -x obtains the brake wear and clutch wear; then performs mean filtering on the wear and finally displays the data.

[0024] A monitoring system for a hot die forging press is applied to the monitoring method for the hot die forging press, and the system comprises:

[0025] The area division module is used to divide the hot die forging press into areas, including the kinematic area, oil area, clutch and brake area, and tonnage monitoring area;

[0026] The data acquisition module is used to collect monitoring data of the kinematic area, oil area, clutch and brake area, and tonnage monitoring area respectively;

[0027] The first processing module is used to process and analyze the monitoring data of the motion sub-area to obtain the temperature danger point information and temperature trend curve of the motion sub-area;

[0028] The second processing module is used to analyze and process the monitoring data of the oil product area with the preset oil product threshold and life threshold to obtain oil product status information;

[0029] The third processing module is used to process and analyze the monitoring data of the clutch brake area and the preset limit displacement value according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate;

[0030] The fourth processing module is used to compare the monitoring data of the tonnage monitoring area with the preset allowable tonnage, and determine whether it is overloaded according to the comparison result.

[0031] The embodiment of the present invention further provides a network side server, including:

[0032] At least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the above-mentioned hot die forging press monitoring method.

[0033] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the above-mentioned hot die forging press monitoring method is implemented.

[0034] The beneficial effects of the present invention are as follows: the monitoring method of the hot die forging press of the present invention comprises dividing the hot die forging press into regions, including a kinematic sub-region, an oil product region, a clutch brake region and a tonnage monitoring region; collecting monitoring data of the kinematic sub-region, the oil product region, the clutch brake region and the tonnage monitoring region respectively; processing and analyzing the monitoring data of the kinematic sub-region to obtain the temperature danger point information and the temperature trend curve of the kinematic sub-region; analyzing and processing the monitoring data of the oil product region with the preset oil product threshold and the life threshold to obtain the oil product status information; processing and analyzing the monitoring data of the clutch brake region with the preset limit displacement value according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate; comparing and processing the monitoring data of the tonnage monitoring region with the preset allowable tonnage, and judging whether it is overloaded according to the comparison result. The monitoring method of the hot die forging press of the present invention can respectively perform real-time monitoring and early warning analysis on each region, timely understand the working status of each region of the system, realize that the working status of the hot die forging press can be monitored and the operating status can be controlled, and ensure the stability of the working status of the press. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0036] In the figure:

[0037] Figure 1A flow chart of a monitoring method for a hot die forging press provided in Embodiment 1 of the present invention;

[0038] Figure 2 A line graph of the dielectric constant of lubricating oil at different iron powder contents provided in Example 1 of the present invention;

[0039] Figure 3 A flow chart of monitoring data processing of a motion sub-region provided in the first embodiment of the present invention;

[0040] Figure 4 A flow chart of monitoring data processing for an oil product area provided in the first embodiment of the present invention;

[0041] Figure 5 A monitoring data processing flow chart of the clutch brake area provided in the first embodiment of the present invention;

[0042] Figure 6 A flow chart of monitoring data processing of a tonnage monitoring area provided in the first embodiment of the present invention;

[0043] Figure 7 A schematic diagram of a module of a monitoring system for a hot die forging press provided in the second embodiment of the present invention;

[0044] Figure 8 is a schematic diagram of the structure of the network side server provided according to the third embodiment of the present invention DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The first embodiment of the present invention provides a monitoring method for a hot die forging press, including: dividing the hot die forging press into regions, including a kinematic sub-region, an oil product region, a clutch brake region, and a tonnage monitoring region; collecting monitoring data of the kinematic sub-region, the oil product region, the clutch brake region, and the tonnage monitoring region respectively; processing and analyzing the monitoring data of the kinematic sub-region to obtain temperature danger point information and a temperature trend curve of the kinematic sub-region; analyzing and processing the monitoring data of the oil product region with a preset oil product threshold and a life threshold to obtain oil product status information; processing and analyzing the monitoring data of the clutch brake region with a preset limit displacement value according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate; comparing the monitoring data of the tonnage monitoring region with a preset allowable tonnage, and judging whether it is overloaded according to the comparison result. The monitoring method for a hot die forging press of the present invention can perform real-time monitoring and early warning analysis on each region respectively, timely understand the working status of each region of the system, realize that the working status of the hot die forging press can be monitored and the operating status can be controlled, and ensure the stability of the working status of the press.

[0047] The following is a detailed description of the implementation details of the hot die forging press monitoring method of this embodiment. The following content is only for the convenience of understanding the implementation details provided, and is not necessary for the implementation of this solution. The specific process of this embodiment is as follows: Figure 1 As shown, the present embodiment is applied to a monitoring system of a hot die forging press.

[0048] Step S1, dividing the hot die forging press into areas, including a kinematic area, an oil product area, a clutch brake area, and a tonnage monitoring area.

[0049] Specifically, during hot die forging pressure, it is necessary to ensure safety monitoring of areas such as moving parts, lubricating oil, clutch, brake and stamping pressure to ensure that these components or systems are in good working condition.

[0050] Specifically, the kinematic pairs of hot die forging presses, such as the rotating pairs and moving pairs in the crank slider mechanism, have high requirements for motion accuracy. By monitoring the kinematic pairs, factors that may affect the motion accuracy can be discovered in time; by continuously monitoring the working status of the kinematic pairs, potential faults can be discovered in advance and prevented from occurring; in addition, based on the monitoring data of the kinematic pairs, the equipment can be optimized and adjusted.

[0051] The quality of lubricating oil directly affects the lubrication effect of the moving parts of the hot forging press. Monitoring the quality of lubricating oil can ensure that the lubricating oil forms a good oil film on the surface of the moving parts. In addition, poor quality lubricating oil will accelerate the wear of the equipment, and monitoring the quality of lubricating oil can prevent this situation. In addition, impurities and moisture in the lubricating oil will affect the normal operation of the press.

[0052] The clutch and brake are important safety guarantees for hot die forging presses. Monitoring the clutch engagement and disengagement status, the brake effect, etc. can ensure operational safety during the start, stop and operation of the equipment; in addition, accurate monitoring of the working parameters of the clutch and brake system can help improve the reliability of the equipment.

[0053] Since hot die forging presses have a rated tonnage range, exceeding this range will cause serious damage to the equipment; tonnage monitoring can monitor the actual tonnage of the press during the forging process in real time to prevent equipment overload; in the hot die forging process, the appropriate forging tonnage has a key impact on product quality, and monitoring the tonnage can ensure that the pressure applied during each forging meets the process requirements.

[0054] Step S2, collecting monitoring data of the kinematic area, oil area, clutch and brake area, and tonnage monitoring area respectively.

[0055] Specifically, the monitoring data of the kinematic pair area, lubricant quality area, clutch brake area and tonnage monitoring area are collected respectively, including:

[0056] Step S21, collecting temperature data of multiple structural positions of the motion sub-region through a temperature sensor.

[0057] Specifically, the temperature data of the kinematic pair area including the guide rail sliding pair, crankshaft support structure, crankshaft bearing, clutch friction plate and flywheel bearing position are collected. Based on the structural characteristics and operating conditions of the guide rail sliding pair, crankshaft support structure, crankshaft bearing, clutch friction plate and flywheel bearing, a contact or non-contact temperature measurement scheme is adopted, combined with a wired or wireless signal transmission method, to establish a reliable temperature measurement hardware circuit, and then collect temperature data. Among them, the location of the temperature data collection point in the kinematic pair area is shown in Table 1.

[0058] Table 1 Location of temperature collection points in the motion sub-area

[0059]

[0060] Furthermore, the guide rail sliding pair of the hot die forging press adopts four-corner eight-sided guide rails. Considering the heating characteristics of each guide rail and the temperature of the collection point for reconstructing the guide rail temperature field, six of the guide rails are selected to install contact temperature sensors. Among them, the model of the temperature sensor is WZPT-261PG. A threaded thermal resistor is installed on the side of the guide rail, combined with a clamping device such as a movable ferrule or a spring washer, the temperature measuring element is pressed against the inside of the guide rail, so as to detect the center temperature of the guide rail.

[0061] Since the crankshaft support structure of the hot die forging press adopts a double crank slider structure, the collection points are distributed at the support bearings of the two crankshafts and the crankshaft-connecting rod bearings. In order to accurately obtain the temperature of the bearing bush, an end-type platinum resistor is selected as the temperature sensor. Among them, the specific model of the temperature sensor is WZPM-201B, and the deep-buried installation method is adopted to make the temperature measuring element close to the surface of the bush.

[0062] Since the clutch friction plate in the kinematic area is in a high-speed rotating state during operation, it is advisable to use a non-contact temperature measuring element to obtain temperature information. Among them, the specific model of the infrared temperature measuring probe is LSCI-DT30A. Since the installation position of the friction plate is exposed to the outside of the fuselage, an infrared temperature measuring probe can be used to obtain its surface temperature. According to the spot size of the temperature measurement range, select a suitable test distance, and install the sensor directly on the outside of the fuselage through the tooling.

[0063] Since the congested flywheel bearing is located in the center hole of the flywheel, the non-contact temperature measurement solution cannot directly obtain the outer ring temperature; the external flywheel is in a high-speed rotating condition, and it is difficult to use the signal wired transmission method. Therefore, the contact measurement and signal wireless transmission solution is used to obtain the bearing temperature data.

[0064] Step S22, collecting dielectric constant data of lubricating oil in the oil product area through an oil product sensor.

[0065] Specifically, since the dielectric constant is sensitive to multiple oil indicators, it can effectively reflect the comprehensive quality of lubricants. By monitoring the dielectric constant of lubricants and measuring a variety of oil samples with different degrees of contamination to obtain threshold values, real-time judgment of lubricant quality can be achieved.

[0066] The lubricating oil of multiple moving parts of the press was collected and its relative dielectric constant was repeatedly measured. The dielectric constant of the lubricating oil in different parts of the hot forging press is shown in Table 2.

[0067] Table 2 Dielectric constant determination of lubricating oil in different parts of hot die forging press

[0068]

[0069] Gear oil, JC23, and ball bearing oil samples all contain black granular and flocculent precipitates. After testing, some precipitates can be adsorbed by rubidium magnets. Combined with the location of the lubricating oil sampling point and the movement characteristics of the kinematic pair, it is preliminarily determined that the granular precipitates are iron filings produced by the wear of the kinematic pair. In order to study the effect of iron filings content on the dielectric constant of the oil sample, iron powder with a particle size of 0.5μm and new machine tool lubricating oil were selected, and lubricating oil samples with different iron powder contents were prepared to measure their dielectric constants. Figure 2 It can be seen that the overall change trend of the dielectric constant shows an approximately linear growth with the increase of iron powder content. The dielectric constant of the lubricating oil at different iron powder contents is shown in Table 3 below.

[0070] Table 3 Dielectric constant of lubricating oil at different iron powder contents

[0071]

[0072] Step S23, collecting axial displacement data of the clutch brake pressure plate in the clutch brake area through a displacement sensor.

[0073] Specifically, by monitoring the axial displacement of the clutch brake pressure plate, the total wear of the brake and clutch friction plates can be indirectly obtained. When the clutch is working, the pressure plate is in a rotating condition, and there is a phenomenon of chip splashing during the wear of the friction plate. It is not suitable to use contact measurement or laser ranging methods. Here, an eddy current displacement sensor is used to measure the axial displacement of the tooling fixed to the pressure plate to indirectly obtain the wear information of the friction plate. Specifically, an integrated eddy current displacement sensor is used to collect the axial displacement data of the clutch brake pressure plate in the clutch braking area, where the specific model of the eddy current displacement sensor probe is ZD-260-12-2-90-50(K).

[0074] Step S24, collecting the tonnage value of the tonnage monitoring area through the tonnage detection sensor.

[0075] Specifically, a tonnage meter is used to design the layout of several measuring points on the hot die forging press. The tonnage detection sensor mainly measures the deformation of the machine tool under working conditions, mainly the surface deformation of the throat position of the machine tool column, to achieve the conversion of tonnage signals into electrical signals. Among them, the tonnage detection sensor adopts the DLM series tonnage meter.

[0076] Specifically, the tonnage meter is installed on the surface of each column of the press, and is fastened to the test point on the column by bolts. In order to obtain accurate tonnage information of the test point, the column installation surface is cleaned and polished to be smooth before the sensor is installed, and interference fit is used between the parts to eliminate the installation gap; after installation, the sensor is calibrated with a standard tonnage meter.

[0077] Step S3, processing and analyzing the monitoring data of the motion sub-area to obtain the temperature danger point information and temperature trend curve of the motion sub-area.

[0078] Specifically, since the monitoring data of the motion sub-area includes temperature data of multiple structural positions, it is necessary to perform over-limit judgment and temperature danger point judgment on the temperature data of multiple positions. The address offset and cyclic comparison method are used to process the temperature data of any multiple points.

[0079] Specifically, Figure 3As shown, first initialize the number of measuring points n and variable i to n, set the temperature threshold and temperature measurement range. Then loop, subtract 1 from i each time. In the loop, determine whether the temperature measurement value VD(j+4i) is greater than or equal to the temperature threshold VD(k+4i). If not satisfied, perform subsequent operations, that is, set the first i bits, reset the first i-1 bits, and set the i-th position of the overheat keyword to 1, and calculate the difference Δ=VD(k+4i)-VD(j+4i). If Δ is less than Δ0, update Δ0 to Δ. The end condition of the loop is N=0. Finally, output the overheat keyword and temperature danger point information. By comparing the real-time temperature data of the measuring point with the preset temperature threshold, the corresponding position of the overheat keyword is set or reset to indicate whether the point is overheated. Among them, the overheat danger point refers to the maximum difference between the real-time temperature and the threshold.

[0080] The temperature danger point information includes the measurement point with the largest temperature exceeding the limit and the corresponding equilibrium temperature; for the situation where the temperature of the moving pair is lower than its equilibrium temperature, the position where the current temperature is closest to the equilibrium temperature is warned.

[0081] Among them, the equilibrium temperature refers to the state where the temperature of the moving pair is stable and no longer changes significantly under specified working conditions. This is called a thermal equilibrium state, and the corresponding temperature value is the equilibrium temperature.

[0082] Furthermore, the monitoring data of the motion sub-area including the temperature data of multiple structural positions and the corresponding time information are respectively imported into the preset drawing tools in the system, and then the temperature trend curves corresponding to the multiple structural positions of the motion sub-area are respectively output.

[0083] Step S4, analyzing and processing the monitoring data of the oil product area with the preset oil product threshold and life threshold to obtain oil product status information.

[0084] Specifically, the monitoring data of the oil product area includes the dielectric constant data of the lubricating oil in the oil product area. Since the increase of the water content, impurity content, acidity, viscosity, and oxidation degree of the lubricating oil will lead to the increase of the dielectric constant, and the above indicators can effectively reflect the degradation of the lubricating oil quality. Therefore, the dielectric constant data is a positively correlated indicator of lubricating oil deterioration. By judging whether the indicator exceeds the threshold value, the quality grade of the lubricating oil can be determined; and if the lubricating oil is used for too long and exceeds the prescribed service life, the lubricating oil should be replaced in time even if the degree of deterioration is low.

[0085] In this embodiment, the lubricant oil usage time is set to T0, and the lubricant oil life threshold is T max , the current dielectric constant of the lubricating oil is E r The oil quality threshold of "good" lubricant is E1, and the oil quality threshold of "average" lubricant is E2. Among them, the life threshold of lubricant is T max, the oil quality threshold E1 of "good" lubricating oil quality and the oil quality threshold E2 of "average" lubricating oil quality are system preset values. In this example, the oil quality threshold E1 of "good" lubricating oil quality is 2.35, and the oil quality threshold E2 of "average" lubricating oil quality is 2.40.

[0086] like Figure 4 As shown, the monitoring data of the oil product area is analyzed and processed with the preset oil product threshold and life threshold, including, firstly, initialization, setting the life threshold T of the lubricating oil max , the oil quality threshold E1 of "good" lubricating oil quality and the oil quality threshold E2 of "average" lubricating oil quality. Then, data anti-shake processing is performed to convert the dielectric constant E r Calculate and determine the lubricant usage time T0. If the current lubricant dielectric constant is E r The lubricant quality is less than the "good" oil threshold E1 and the lubricant usage time T0 does not reach the lubricant life threshold T max , the oil is considered good; if the dielectric constant of the current lubricating oil is E r The lubricant quality is greater than or equal to the oil quality threshold E1 of "good" but less than the oil quality threshold E2 of "average", and the lubricant usage time T0 does not reach the lubricant life threshold T max , the oil is judged to be of average quality; if the dielectric constant of the current lubricating oil is E r The oil quality threshold E2 of lubricant quality "average" is greater than or equal to the lubricant quality threshold E2 or the lubricant usage time T0 reaches or exceeds the lubricant life threshold T max , which corresponds to the bad oil quality or the over-limit of time. Finally, the data and oil status are displayed. If the oil quality is bad or the over-limit of time occurs, an oil change alarm is issued.

[0087] The data anti-shake processing includes inputting the sampled data into the buffer area and implementing it by using the mean filtering or median filtering method.

[0088] Furthermore, the lubricating oil usage time T0 will be reset to zero after each oil change.

[0089] Step S5, according to the state of the clutch brake, the monitoring data of the clutch brake area and the preset limit displacement value are processed and analyzed to obtain the wear amount of the clutch brake friction plate.

[0090] Specifically, if Figure 5 As shown, the initialization is first performed to obtain the displacement sensor data x (i.e., the axial displacement data of the clutch brake pressure plate) and determine the clutch working state, which includes the clutch state and the brake state. The initial value is set, including the displacement value x in the initial clutch state. z and the displacement value x in the initial braking state cWhen the machine tool is working normally, data anti-shake processing is performed. Then the clutch state, brake state, spindle state and working condition are judged, and the displacement difference δ = x is calculated. z -x or δ = x c -x gets the brake wear and clutch wear. Then the wear is processed by mean filter and finally the data is displayed.

[0091] Furthermore, by setting a wear limit threshold of the clutch or brake friction plate and comparing it with the wear amount, the wear state can be determined and a wear warning can be issued.

[0092] Step S6, comparing the monitoring data of the tonnage monitoring area with the preset allowable tonnage, and determining whether it is overloaded based on the comparison result.

[0093] Specifically, if Figure 6 As shown, according to the monitoring data of the tonnage monitoring area obtained by the tonnage detection sensor, the tonnage detection sensor (i.e., tonnage meter) includes a permanent magnet and a Hall sensor. The tonnage meter converts the voltage signal into a tonnage signal, and then obtains the real-time tonnage of the press, and compares the real-time tonnage data with the preset allowable tonnage. When the real-time tonnage is greater than the allowable tonnage, the controller triggers an emergency stop operation. At the same time, the system also stores and displays the real-time tonnage data.

[0094] The first embodiment of the present invention provides a monitoring method for a hot die forging press, comprising: dividing the hot die forging press into regions, including a kinematic sub-region, an oil product region, a clutch brake region, and a tonnage monitoring region; collecting monitoring data of the kinematic sub-region, the oil product region, the clutch brake region, and the tonnage monitoring region respectively; processing and analyzing the monitoring data of the kinematic sub-region to obtain temperature danger point information and a temperature trend curve of the kinematic sub-region; analyzing and processing the monitoring data of the oil product region with a preset oil product threshold and a life threshold to obtain oil product status information; processing and analyzing the monitoring data of the clutch brake region with a preset limit displacement value according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate; comparing the monitoring data of the tonnage monitoring region with a preset allowable tonnage, and judging whether it is overloaded according to the comparison result. The monitoring method for a hot die forging press of the present invention can perform real-time monitoring and early warning analysis on each region respectively, timely understand the working status of each region of the system, realize that the working status of the hot die forging press can be monitored and the operating status can be controlled, and ensure the stability of the working status of the press.

[0095] The step division of the above methods is only for the purpose of clear description. When implemented, they can be combined into one step or some steps can be split and decomposed into multiple steps. As long as they include the same logical relationship, they are all within the scope of protection of this patent; adding insignificant modifications to the algorithm or process or introducing insignificant designs without changing the core design of the algorithm and process are all within the scope of protection of this patent.

[0096] like Figure 7 As shown, the second embodiment of the present invention provides a monitoring system for a hot die forging press, and the hot die forging press monitoring system includes: an area division module 201, a data acquisition module 202, a first processing module 203, a second processing module 204, a third processing module 205, and a fourth processing module 206.

[0097] Specifically, the area division module 201 is used to divide the hot forging press into areas, including a kinematic sub-area, an oil product area, a clutch brake area and a tonnage monitoring area; the data acquisition module 202 is used to respectively collect monitoring data of the kinematic sub-area, the oil product area, the clutch brake area and the tonnage monitoring area; the first processing module 203 is used to process and analyze the monitoring data of the kinematic sub-area to obtain the temperature danger point information and the temperature trend curve of the kinematic sub-area; the second processing module 204 is used to analyze and process the monitoring data of the oil product area with the preset oil product threshold and life threshold to obtain the oil product status information; the third processing module 205 is used to process and analyze the monitoring data of the clutch brake area with the preset limit displacement value according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate; the fourth processing module 206 is used to compare the monitoring data of the tonnage monitoring area with the preset allowable tonnage, and determine whether it is overloaded according to the comparison result.

[0098] It is not difficult to find that this embodiment is a system embodiment corresponding to the first embodiment, and this embodiment can be implemented in conjunction with the first embodiment. The relevant technical details mentioned in the first embodiment are still valid in this embodiment, and in order to reduce repetition, they are not repeated here. Accordingly, the relevant technical details mentioned in this embodiment can also be applied in the first embodiment.

[0099] It is worth mentioning that all modules involved in this embodiment are logic modules. In practical applications, a logic unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, this embodiment does not introduce units that are not closely related to solving the technical problems proposed by the present invention, but this does not mean that there are no other units in this embodiment.

[0100] A third embodiment of the present invention relates to a network side server, such as Figure 8 As shown, it includes at least one processor 302; and a memory 301 that is communicatively connected to the at least one processor 302; wherein the memory 301 stores instructions that can be executed by the at least one processor 302, and the instructions are executed by the at least one processor 302 so that the at least one processor 302 can execute the above-mentioned data processing method.

[0101] The memory 301 and the processor 302 are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors 302 and the memory 301 together. The bus can also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor 302 is transmitted on a wireless medium via an antenna, and further, the antenna also receives data and transmits the data to the processor 302.

[0102] The processor 302 is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management and other control functions. The memory 301 can be used to store data used by the processor 302 when performing operations.

[0103] A fourth embodiment of the present invention relates to a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the monitoring method for a hot die forging press in the first embodiment.

[0104] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0105] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

[0106] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A monitoring method for a hot die forging press, characterized in that: include: S1, divide the hot die forging press into areas, including the kinematic area, oil area, clutch and brake area, and tonnage monitoring area; S2, collects monitoring data of the kinematic area, oil area, clutch and brake area, and tonnage monitoring area respectively; S3, processing and analyzing the monitoring data of the motion sub-area to obtain the temperature danger point information and temperature trend curve of the motion sub-area; S4, analyzing and processing the monitoring data of the oil product area with the preset oil product threshold and life threshold to obtain oil product status information; S5, according to the state of the clutch brake, the monitoring data of the clutch brake area and the preset limit displacement value are processed and analyzed to obtain the wear amount of the clutch brake friction plate; S6, comparing the monitoring data of the tonnage monitoring area with the preset allowable tonnage, and judging whether it is overloaded according to the comparison result.

2. The monitoring method of the hot die forging press according to claim 1, characterized in that: In S2, the monitoring data of the kinematic area, the oil area, the clutch brake area and the tonnage monitoring area are collected respectively, including: Step S21, collecting temperature data of multiple structural positions of the motion sub-region through a temperature sensor; Step S22, collecting dielectric constant data of lubricating oil in the oil product area through an oil product sensor; Step S23, collecting axial displacement data of the clutch brake pressure plate in the clutch brake area through a displacement sensor; Step S24, collecting the tonnage value of the tonnage monitoring area through the tonnage detection sensor.

3. The monitoring method based on hot die forging press according to claim 2 is characterized in that: The temperature data of multiple structural positions in the kinematic pair area are collected by the temperature sensor, including: collecting temperature data of the kinematic pair area including the guide rail sliding pair, the crankshaft support structure, the crankshaft bearing, the clutch friction plate and the flywheel bearing position.

4. The monitoring method of hot die forging press according to claim 1, characterized in that: In S3, the monitoring data of the motion sub-area is processed and analyzed, including: since the monitoring data of the motion sub-area includes temperature data of multiple structural positions, over-limit judgment and temperature danger point judgment are performed on the temperature data of multiple position points, and address offset and cyclic comparison methods are used to realize processing of temperature data of any multiple points.

5. The monitoring method of hot die forging press according to claim 1, characterized in that: In S3, the temperature danger point information includes, for the measuring points where the temperature exceeds the limit, displaying the position of the measuring point with the largest limit and the corresponding equilibrium temperature; for the case where the temperatures of the moving pairs are all lower than their equilibrium temperatures, warning of the position where the current temperature is closest to the equilibrium temperature.

6. The monitoring method of hot die forging press according to claim 1, characterized in that: In S4, the monitoring data of the oil product area is analyzed and processed with the preset oil product threshold and life threshold, including: firstly, initialization is performed to set the life threshold T of the lubricating oil max , the oil quality threshold E1 of "good" lubricating oil quality and the oil quality threshold E2 of "average" lubricating oil quality; then perform data anti-shake processing and convert the dielectric constant E r Calculate and determine the lubricant usage time T0; if the current lubricant dielectric constant is E r The lubricant quality is less than the "good" oil threshold E1 and the lubricant usage time T0 does not reach the lubricant life threshold T max , the oil is considered good; if the dielectric constant of the current lubricating oil is E r The lubricant quality is greater than or equal to the oil quality threshold E1 of "good" but less than the oil quality threshold E2 of "average", and the lubricant usage time T0 does not reach the lubricant life threshold T max , the oil is judged to be of average quality; if the dielectric constant of the current lubricating oil is E r The oil quality threshold E2 of lubricant quality "average" or the lubricant usage time T0 reaches or exceeds the lubricant life threshold T max , which corresponds to the bad oil quality or the over-limit time.

7. The monitoring method of hot die forging press according to claim 6, characterized in that: In S5, the monitoring data of the clutch brake area and the preset limit displacement value are processed and analyzed according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate, including: First, initialization is performed to obtain the displacement sensor data x, that is, the axial displacement data of the clutch brake pressure plate and determine the clutch working state, which includes the clutch state and the brake state; and the initial value is set, including the displacement value x in the initial clutch state z and the displacement value x in the initial braking state c ; When the machine tool is working normally, perform data anti-shake processing; then judge the clutch state, brake state, spindle state and working condition, and calculate the displacement difference δ = x z -x or δ = x c -x obtains the brake wear and clutch wear; then the wear is processed by mean filtering, and finally the data is displayed.

8. A monitoring system for a hot die forging press, characterized in that: The monitoring method for the hot die forging press as claimed in claim 1, wherein the system comprises: The area division module is used to divide the hot die forging press into areas, including the kinematic area, oil area, clutch and brake area, and tonnage monitoring area; The data acquisition module is used to collect monitoring data of the kinematic area, oil area, clutch and brake area, and tonnage monitoring area respectively; The first processing module is used to process and analyze the monitoring data of the motion sub-area to obtain the temperature danger point information and temperature trend curve of the motion sub-area; The second processing module is used to analyze and process the monitoring data of the oil product area with the preset oil product threshold and life threshold to obtain oil product status information; The third processing module is used to process and analyze the monitoring data of the clutch brake area and the preset limit displacement value according to the state of the clutch brake to obtain the wear amount of the clutch brake friction plate; The fourth processing module is used to compare the monitoring data of the tonnage monitoring area with the preset allowable tonnage, and determine whether it is overloaded according to the comparison result.

9. A network side server, characterized in that: include: at least one processor; as well as, a memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so as to enable the at least one processor to perform the monitoring method for a hot forging press according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the monitoring method of the hot forging press according to any one of claims 1 to 7 is implemented.

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