Silicon steel sheet stacking device for mutual inductor iron core

Abstract

The invention discloses a silicon steel sheet stacking device for a mutual inductor iron core, and relates to the technical field of mutual inductors, the silicon steel sheet stacking device is applied to a controller, and the controller comprises a state monitoring module, a data storage and display module and a fault diagnosis module; the state monitoring module is used for monitoring and analyzing state information of a motor on the equipment, position information of an upper clamping plate and a lower clamping plate and pressure information borne by the silicon steel sheets in the laminating process to obtain a monitoring analysis result; the controller integrates a plurality of functional modules, and the state monitoring module can obtain the state information of the motor, the position information of the upper clamping plate and the lower clamping plate, the pressure information of the silicon steel sheets in the laminating process and the monitoring analysis result in real time by means of the sensing acquisition module. Therefore, an operator can master the operation condition of each key part of the equipment in an omnibearing and real-time manner, and timely perceive the subtle change of the equipment, thereby providing powerful guarantee for the stable operation of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of mutual inductors, and in particular to a silicon steel sheet stacking device for a mutual inductor iron core. Background Art

[0002] At present, there are three main methods for laminating silicon steel sheets: manual lamination, mechanical lamination, and automated lamination. Although the manual lamination method is simple and easy to operate, and does not require special equipment and complex technology, it has obvious shortcomings such as low efficiency and limited scope of application; the mechanical lamination method is more efficient and the lamination quality is relatively stable, but the equipment purchase price is high, and professional technicians are required to operate and maintain it; the automated lamination method is highly intelligent, with high lamination efficiency and stable quality, and can complete multiple processes at one time, but its equipment is expensive and highly dependent on professional technicians. In view of the comprehensive consideration of cost and efficiency, the mechanical lamination method is mostly used in the production of transformer cores, but this method is a semi-automatic operation and requires operators to fill. In the actual operation process, it is very easy to make mistakes in laminating silicon steel sheets without alignment, which will undoubtedly have a serious impact on product quality.

[0003] In addition, traditional silicon steel sheet stacking equipment has many problems that need to be solved in terms of operation monitoring. Silicon steel sheet stacking involves multiple key links and components, such as the stable operation of the motor, the precise position control of the splint, and the uniformity of the pressure on the silicon steel sheet. Deviations in any link may lead to a decline in the stacking quality. However, previous equipment generally lacks comprehensive and effective monitoring methods, making it difficult to detect these potential problems in real time and accurately. They are often detected only after obvious quality defects appear in the product, resulting in a large waste of production resources and a significant reduction in production efficiency. For this reason, it is necessary to propose a silicon steel sheet stacking device for transformer cores to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a silicon steel sheet stacking device for a transformer core.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A silicon steel sheet stacking device for a transformer core comprises a device shell, characterized in that a mounting opening is provided on one side of the device shell, an observation window is slidably connected in the mounting opening, a controller is fixedly installed on one side of the upper end of the front end surface of the device shell, a device box is provided on the bottom surface of the device shell, a mounting opening is provided on the front end surface of the device box, box doors are hinged on both sides of the mounting opening, a stacking assembly is provided in the middle of the top surface of the device box, a motor is provided in the stacking assembly, a base is installed on the top surface of the device box, and an upper clamping plate and a lower clamping plate are provided on the upper side of the base; The controller includes a monitoring setting module, a state monitoring module, a data storage and display module, and a fault diagnosis module; the monitoring setting module is used to use the start-up time of the motor as the first time and the shutdown time of the motor as the second time; if there is no shutdown time of the motor, the current time is used as the second time; the time area between the first time and the second time is marked as the motor monitoring time zone; the state monitoring module is used to monitor the state information of the motor on the equipment, the position information of the upper clamping plate and the lower clamping plate, and the pressure information of the silicon steel sheet during the lamination process and analyze them to obtain the monitoring and analysis results; wherein the monitoring and analysis results include the motor state value, the normal deviation value, the infrared thermal image value, the position deviation influence value, the pressure mean, the pressure difference value, the lamination influence value, the lamination fluctuation value, and the pressure image value; The fault diagnosis module is used to receive the monitoring and analysis results, compare the monitoring and analysis results with the set thresholds, generate corresponding signaling and perform corresponding operations; the data storage and display module is used to receive the monitoring and analysis results for storage and display.

[0006] Preferably, the stacking assembly includes a motor box, the bottom surface of which is mounted and fixed on one side of the top surface of the equipment box, the motor is arranged inside the motor box, the upper end surface of the motor is mounted and fixed on the top surface inside the equipment box, the motor output shaft passes through the top surface of the equipment box through a coupling and is connected to a driving gear, one side of the driving gear is mated with a driven gear, the driven gear is fixed to the lower end of the side of the bidirectional threaded rod, and the bottom end of the bidirectional threaded rod is rotatably connected to the top surface of the equipment box.

[0007] Preferably, the surfaces of the bidirectional threaded rod are threadedly connected to the upper clamp plate and the lower clamp plate respectively, a base is provided directly below the lower clamp plate, the bottom surface of the base is installed and fixed on the top surface of the equipment box, four guide columns are evenly and vertically fixed around the top surface of the base, and the guide columns are slidably connected to the surfaces of the upper clamp plate and the lower clamp plate.

[0008] Preferably, the controller further comprises a sensor acquisition module; the sensor acquisition module is used to acquire the state information of the motor, the position information of the upper clamping plate and the lower clamping plate, and the pressure information of the silicon steel sheet during the lamination process through a sensor group; wherein the sensor group comprises a current sensor, a voltage sensor, a temperature sensor, a vibration sensor, an infrared sensor, a position sensor and a pressure sensor; The current sensor and voltage sensor are connected to the circuit of the motor, and the temperature sensor, vibration sensor and infrared sensor are installed on the motor casing; the current sensor, voltage sensor, vibration sensor and temperature sensor are respectively used to collect the current, voltage, vibration frequency and surface temperature of the motor, and the infrared sensor is used to collect the surface infrared image of the motor; the position sensor is arranged on the guide column between the upper clamping plate and the lower clamping plate, and is used to collect the position information of the upper clamping plate and the lower clamping plate; the pressure sensor is arranged in multiple and evenly arranged on the lamination table, and is used to monitor the pressure information of the silicon steel sheet during the lamination process.

[0009] As a preferred method, the status information of the motor on the monitoring device is analyzed, and the specific analysis is as follows: Obtaining the state information of the motor, including current, voltage, vibration frequency, and surface temperature; setting a normal value of any parameter in the state information, performing difference calculation between the value of any parameter in the state information and its normal value to obtain a normal deviation difference; performing weighted processing on the normal deviation differences of all parameters in the state information to obtain a normal deviation value; Obtain an infrared image of any side of the motor, analyze the infrared image of the motor, and obtain the infrared thermal image value; The normal deviation value and the infrared thermal image value in the motor monitoring time zone are weighted to obtain the motor state value.

[0010] As a preferred method, the position information of the upper splint and the lower splint is monitored and analyzed, and the specific analysis is as follows: Obtain the current production task, extract the predetermined motion mode of the upper clamp and the lower clamp from the production task, and extract the preset motion trajectory and speed of the upper clamp and the lower clamp during the lamination process from the predetermined motion mode; the motion trajectory includes the position and corresponding time of the upper clamp and the lower clamp on the guide column; Calculate the position deviation between the position of the upper clamping plate and the lower clamping plate at any time in the motor monitoring time zone and their preset positions to obtain the position deviation value; All position deviation values ​​within the motor operation time zone are weighted to obtain the position deviation impact value.

[0011] As a preferred method, the pressure information of the silicon steel sheet during the lamination process is monitored and analyzed, and the specific analysis is as follows: The silicon steel sheet is divided into several overlapping areas, and overlapping weights are assigned to the overlapping areas; the pressure value of any overlapping area is obtained, and the pressure values ​​of all overlapping areas are averaged to obtain the pressure average; the maximum and minimum pressure values ​​in all overlapping areas are calculated to obtain the pressure difference value; the pressure value of any overlapping area is calculated to obtain the pressure difference value by the difference between the pressure value and the preset pressure value; the pressure difference value of all overlapping areas is weightedly summed with the overlapping weights corresponding to the overlapping areas to obtain the overlapping influence value; Obtain the superposition pressure impact value at any collection time in the motor monitoring time zone and perform variance calculation to obtain the superposition pressure fluctuation value; The pressure shadow value is obtained by weighting the pressure mean, pressure difference, overlay influence value and overlay fluctuation value.

[0012] Preferably, the infrared image of the motor is analyzed, specifically: Acquire an infrared image of any side of the motor, and enlarge the infrared image to obtain a pixel grid image; identify the color value of any pixel grid in the pixel grid image; set a thermal value range group, including several thermal value ranges, and assign a thermal value weight e to each thermal value range; match the color value of the pixel grid with its thermal value range group, and mark the pixel grids in the same thermal value range as the same amplitude pixel grids; connect adjacent same amplitude pixel grids to obtain the same amplitude thermal value area; calculate the area of ​​the same amplitude thermal value area and mark it as the amplitude value, and unmark the same amplitude thermal value area whose amplitude value is less than the preset screening area threshold; count the number of the same amplitude thermal value areas in the thermal value range and mark it as the same amplitude number; average the color values ​​of all pixel grids in the same amplitude thermal value area to obtain the amplitude mean value; The amplitude value, the number of amplitudes and the amplitude average value of the same amplitude thermal value area in the same thermal value range are calculated as the same amplitude thermal image value; The thermal image values ​​of the same amplitude in different calorific value ranges are weighted with their corresponding calorific value weights to obtain the thermal image values; The thermal image values ​​of the infrared images of each surface of the motor are weighted to obtain the infrared thermal image value.

[0013] Preferably, the monitoring and analysis results are received, the monitoring and analysis results are compared with the set threshold, corresponding signaling is generated and corresponding operations are performed; specifically as follows: Obtain monitoring and analysis results including motor status value, position deviation impact value, and pressure shadow value; If the motor state value is greater than the set abnormal threshold range, a motor overall state fault signal is generated; if the normal deviation value is within the set abnormal threshold range, a motor overall state abnormal signal is generated; if the normal deviation value is less than the set abnormal threshold range, it indicates that the motor is in a normal state, and a motor normal signal is generated; if the position deviation impact value is greater than the set abnormal threshold range, it indicates that the upper and lower splints have serious deviations from the preset positions, and a serious deviation signal is generated; if the position deviation impact value is within the set abnormal threshold range, it indicates that the upper and lower splints have slight deviations from the preset positions, and a slight deviation signal is generated; if the position deviation impact value is less than the set abnormal threshold range, it indicates that the positions of the upper and lower splints are in a normal state; if the pressure shadow value is not within the set normal threshold range, a silicon steel sheet stacking pressure comprehensive abnormal signal is generated; All signaling is sent to the data storage and display module; the data storage and display module receives all signaling and records the receiving time for display.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the function of stacking silicon steel sheets by mechanical structure through the cooperation of motor and bidirectional threaded rod, and the limit ring and spring assist in aligning the silicon steel sheets, thereby reducing the stacking quality problem caused by the deviation of silicon steel sheets.

[0015] 2. The controller in the present invention integrates multiple functional modules, among which the status monitoring module can obtain the status information of the motor, the position information of the upper clamping plate and the lower clamping plate, and the pressure information and monitoring and analysis results of the silicon steel sheet during the lamination process in real time with the help of the sensor acquisition module, so that the operator can fully and real-time grasp the operating conditions of each key component of the equipment, timely detect subtle changes in the equipment, and provide strong guarantee for the stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 This is a three-dimensional schematic diagram of the overall appearance of the device proposed by the present invention; Figure 2 This is a front view schematic diagram of the overall appearance of the device proposed by the present invention; Figure 3 A schematic side view of the overall appearance of the device proposed by the present invention; Figure 4 A three-dimensional schematic diagram of the stacking assembly structure proposed by the present invention; Figure 5 It is a front cross-sectional schematic diagram of the stacked assembly structure proposed by the present invention; Figure 6 This is a principle block diagram of the controller proposed in the present invention.

[0017] Serial numbers in the figure: 1. Equipment shell; 2. Observation window; 3. Controller; 4. Equipment box; 5. Box door; 6. Motor box; 7. Motor; 8. Driving gear; 9. Driven gear; 10. Bidirectional threaded rod; 11. Upper clamping plate; 12. Lower clamping plate; 13. Base; 14. Stacking table; 15. Limiting ring; 16. Press head; 17. Mounting bolt; 18. Spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figure 1-Figure 6 , the silicon steel sheet stacking device for the transformer core of the present invention, It comprises an equipment shell 1, a mounting opening is provided on one side of the equipment shell 1, an observation window 2 is slidably connected in the mounting opening, a controller 3 is fixedly installed on one side of the upper end of the front end surface of the equipment shell 1, an equipment box 4 is provided on the bottom surface of the equipment shell 1, a mounting opening is provided on the front end surface of the equipment box 4, box doors 5 are hinged on both sides of the mounting opening, a stacking assembly is provided in the middle of the top surface of the equipment box 4, a motor 7 is provided in the stacking assembly, a base 13 is installed on the top surface of the equipment box 4, and an upper clamping plate 11 and a lower clamping plate 12 are provided on the upper side of the base 13; The controller 3 includes a monitoring setting module, a state monitoring module, a data storage and display module, and a fault diagnosis module; the monitoring setting module is used to use the start-up time of the motor 7 as the first time and the shutdown time of the motor 7 as the second time; if there is no shutdown time of the motor 7, the current time is used as the second time; the time area between the first time and the second time is marked as the motor monitoring time zone; the state monitoring module is used to monitor the state information of the motor 7 on the equipment, the position information of the upper clamping plate 11 and the lower clamping plate 12, and the pressure information of the silicon steel sheet during the lamination process and analyze them to obtain the monitoring and analysis results; wherein the monitoring and analysis results include the motor state value, the normal deviation value, the infrared thermal image value, the position deviation influence value, the pressure mean, the pressure difference value, the lamination influence value, the lamination fluctuation value, and the pressure image value; The fault diagnosis module is used to receive the monitoring and analysis results, compare the monitoring and analysis results with the set thresholds, generate corresponding signaling and perform corresponding operations; the data storage and display module is used to receive the monitoring and analysis results for storage and display.

[0020] In the present application, the stacking assembly includes a motor box 6, the bottom surface of the motor box 6 is mounted and fixed on one side of the top surface of the equipment box 4, the motor 7 is arranged inside the motor box 6, the upper end surface of the motor 7 is mounted and fixed on the top surface inside the equipment box 4, the output shaft of the motor 7 passes through the top surface of the equipment box 4 through a coupling and is connected to a driving gear 8, and a driven gear 9 is mated and abutted on one side of the driving gear 8, and the driven gear 9 is fixed to the lower end of the side of the bidirectional threaded rod 10, and the bottom end of the bidirectional threaded rod 10 is rotatably connected to the top surface of the equipment box 4.

[0021] In the present application, the surfaces of the bidirectional threaded rod 10 are threadedly connected to the upper clamp plate 11 and the lower clamp plate 12 respectively. A base 13 is provided directly below the lower clamp plate 12. The bottom surface of the base 13 is installed and fixed on the top surface of the equipment box 4. Four guide columns are evenly and vertically fixed around the top surface of the base 13. The guide columns are slidably connected to the surfaces of the upper clamp plate 11 and the lower clamp plate 12.

[0022] In the present application, the controller further includes a sensor acquisition module; the sensor acquisition module is used to collect the state information of the motor 7, the position information of the upper clamping plate 11 and the lower clamping plate 12, and the pressure information of the silicon steel sheet during the lamination process through the sensor group; wherein the sensor group includes a current sensor, a voltage sensor, a temperature sensor, a vibration sensor, an infrared sensor, a position sensor and a pressure sensor; A current sensor and a voltage sensor are connected to the circuit of the motor 7, and a temperature sensor, a vibration sensor and an infrared sensor are installed on the housing of the motor 7; the current sensor, the voltage sensor, the vibration sensor and the temperature sensor are respectively used to collect the current, voltage, vibration frequency and surface temperature of the motor 7, and the infrared sensor is used to collect the surface infrared image of the motor 7; the position sensor is arranged on the guide column between the upper clamping plate 11 and the lower clamping plate 12, and is used to collect the position information of the upper clamping plate 11 and the lower clamping plate 12; a plurality of pressure sensors are arranged and evenly arranged on the lamination table 14, and are used to monitor the pressure information of the silicon steel sheet during the lamination process.

[0023] In this application, the status information of the motor 7 on the monitoring device is analyzed, and the specific analysis is as follows: The state information of the motor 7 is obtained, including current, voltage, vibration frequency, and surface temperature; a normal value of any parameter in the state information is set, and a normal deviation difference CPi is obtained by performing a difference calculation between the numerical value of any parameter in the state information and its normal value, where i represents the number of the parameter in the state information; the normal deviation difference of all parameters in the state information is weighted to obtain a normal deviation value P, which is expressed by the formula: ; Where n represents the number of parameters in the state information, and pi represents the weight corresponding to parameter i in the state information; Obtain an infrared image of any side of the motor 7, analyze the infrared image of the motor 7, and obtain an infrared thermal image value F; The normal deviation value and infrared thermal image value in the motor monitoring time zone are weighted, and the formula is expressed as: , to obtain the motor state value G; where t represents the number of the motor monitoring time zone collection time, T represents the number of collection times in the motor monitoring time zone, tP and tF represent the constant deviation value and infrared thermal image value corresponding to the collection time t in the motor monitoring time zone, respectively, and ta1 and ta2 represent the weights corresponding to the constant deviation value and infrared thermal image value corresponding to the collection time t in the motor monitoring time zone, respectively.

[0024] In this application, the position information of the upper clamping plate 11 and the lower clamping plate 12 is monitored and analyzed, and the specific analysis is as follows: Obtain the current production task, extract the predetermined motion mode of the upper clamping plate 11 and the lower clamping plate 12 from the production task, and extract the preset motion trajectory and speed of the upper clamping plate 11 and the lower clamping plate 12 during the lamination process from the predetermined motion mode; the motion trajectory includes the position and corresponding time of the upper clamping plate 11 and the lower clamping plate 12 on the guide column; The position deviation of the upper clamping plate 11 and the lower clamping plate 12 at any time in the motor monitoring time zone is calculated with respect to the preset position to obtain the position deviation value WZt, where t represents the number of the acquisition time in the motor monitoring time zone; All position deviation values ​​in the motor running time period are weighted to obtain the position deviation influence value W, which is expressed by the formula: ; Wherein, tc represents the weight of the position deviation value at the acquisition time t within the motor monitoring time zone.

[0025] In this application, the pressure information of the silicon steel sheet during the lamination process is monitored and analyzed, and the specific analysis is as follows: The silicon steel sheet is divided into several overlapping areas, and overlapping weights are assigned to the overlapping areas; the pressure value of any overlapping area is obtained, and the pressure values ​​of all overlapping areas are averaged to obtain the pressure average value YL1; the maximum and minimum pressure values ​​in all overlapping areas are calculated to obtain the pressure difference value YL2; the pressure value of any overlapping area is calculated to obtain the pressure difference value by the difference between the pressure value and the preset pressure value; the pressure difference values ​​of all overlapping areas are weighted summed with the overlapping weights corresponding to the overlapping areas to obtain the overlapping influence value YL3; Obtain the superposition influence value at any acquisition time in the motor monitoring time zone and perform variance calculation to obtain the superposition fluctuation value YL4; The pressure mean, pressure difference, overlay influence and overlay fluctuation are weighted to obtain the pressure shadow value YL, which is expressed by the formula: ; Among them, y1, y2, y3, and y4 represent the weights corresponding to the pressure mean, pressure difference, overlay influence value, and overlay fluctuation value, respectively.

[0026] In this application, the infrared image of the motor 7 is analyzed, specifically: Acquire an infrared image of any side of the motor 7, and enlarge the infrared image to obtain a pixel grid image; identify the color value of any pixel grid in the pixel grid image; set a calorific value range group, including several calorific value ranges, and assign a calorific value weight e to each calorific value range; match the color value of the pixel grid with its calorific value range group, and mark the pixel grids in the same calorific value range as the same amplitude pixel grid; connect adjacent same amplitude pixel grids to obtain the same amplitude calorific value area; calculate the area of ​​the same amplitude calorific value area and mark it as the amplitude value FM1, and unmark the same amplitude calorific value area whose amplitude value is less than the preset screening area threshold; count the number of the same amplitude calorific value areas in the calorific value range and mark it as the same amplitude number FM2; average the color values ​​of all pixel grids in the same amplitude calorific value area to obtain the amplitude average value FM3; The amplitude value, the number of amplitudes, and the average amplitude value of the same amplitude thermal value area in the same thermal value range are calculated as the same amplitude thermal image value FM, and the formula is: ; Among them, m1, m2, and m3 represent the weights corresponding to the amplitude value, the number of amplitudes, and the amplitude mean of the same amplitude heat value area respectively; The thermal image values ​​of the same amplitude in different calorific value ranges are weighted with their corresponding calorific value weights to obtain the thermal image value F1, which is expressed by the formula ; Wherein, m represents the number of the calorific value range in the calorific value range group, M represents the number of calorific value ranges in the calorific value range group, mFM and em represent the same amplitude thermal image value and the corresponding calorific value weight of the calorific value range m in the calorific value range group respectively; The thermal image values ​​of the infrared images of each surface of the motor 7 are weighted to obtain the infrared thermal image value F, which is expressed by the formula: ; Among them, b represents the number of the surface on the motor 7 where the infrared image is collected, B represents the number of surfaces where the infrared image is collected, and bF1 and bj represent the thermal image value and the corresponding weight corresponding to the infrared image of the collected surface number b, respectively.

[0027] In this application, the monitoring and analysis results are received, the monitoring and analysis results are compared with the set threshold, the corresponding signaling is generated and the corresponding operation is performed; the details are as follows: Obtain monitoring and analysis results including motor status value, position deviation impact value, and pressure shadow value; If the motor state value is greater than the set abnormal threshold range, a motor overall state fault signal is generated; if the normal deviation value is within the set abnormal threshold range, a motor overall state abnormal signal is generated; if the normal deviation value is less than the set abnormal threshold range, it indicates that the motor is in a normal state, and a motor normal signal is generated; If the position deviation impact value is greater than the abnormal threshold range set by it, it indicates that the upper clamping plate 11 and the lower clamping plate 12 have serious deviations from the preset position, and a serious deviation signal is generated; if the position deviation impact value is within the abnormal threshold range set by it, it indicates that the upper clamping plate 11 and the lower clamping plate 12 have slight deviations from the preset position, and a slight deviation signal is generated; if the position deviation impact value is less than the abnormal threshold range set by it, it indicates that the position of the upper clamping plate 11 and the lower clamping plate 12 is in a normal state; If the pressure image value is not within the normal threshold range set by it, a comprehensive abnormal signal of silicon steel sheet stacking pressure is generated; All signaling is sent to the data storage and display module; the data storage and display module receives all signaling and records the receiving time for display.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A silicon steel sheet stacking device for a transformer core, comprising a device shell (1), characterized in that: A mounting opening is provided on one side of the device shell (1); a controller (3) is fixedly mounted on one side of the upper end of the front end surface of the device shell (1); a device box (4) is provided on the bottom surface of the device shell (1); a stacking assembly is provided in the middle of the top surface of the device box (4); a motor (7) is provided in the stacking assembly; a base (13) is installed on the top surface of the device box (4); an upper clamping plate (11) and a lower clamping plate (12) are provided on the upper side of the base (13); The controller (3) comprises a monitoring setting module, a state monitoring module, a data storage and display module, and a fault diagnosis module; the monitoring setting module uses the start-up time of the motor (7) as the first time and the shutdown time as the second time; if there is no shutdown time, the current time is used as the second time, and the time between the two times is used as the motor monitoring time zone; the state monitoring module is used to monitor the state information of the motor (7), the position information of the upper clamping plate (11) and the lower clamping plate (12), and the pressure information of the silicon steel sheet, and analyze them to obtain the monitoring and analysis results; The fault diagnosis module receives the monitoring and analysis results, compares the monitoring and analysis results with the set threshold, generates signaling and executes operations; the data storage and display module receives and stores the monitoring and analysis results and displays them at the same time.

2. According to claim 1, the silicon steel sheet stacking device for a transformer core, the stacking assembly comprises a motor box (6), the bottom surface of the motor box (6) is fixedly mounted on one side of the top surface of the equipment box (4), the motor (7) is arranged inside the motor box (6), the upper end surface of the motor (7) is fixedly mounted on the top surface inside the equipment box (4), the output shaft of the motor (7) passes through the top surface of the equipment box (4) through a coupling and is connected to a driving gear (8), one side of the driving gear (8) is matched with a driven gear (9), the driven gear (9) is fixedly connected to the lower end of the side of the bidirectional threaded rod (10), and the bottom end of the bidirectional threaded rod (10) is rotatably connected to the top surface of the equipment box (4).

3. According to the silicon steel sheet stacking device for a transformer core as described in claim 2, the surfaces of the bidirectional threaded rod (10) are respectively threadedly connected to the upper clamping plate (11) and the lower clamping plate (12), and a base (13) is provided directly below the lower clamping plate (12), and the bottom surface of the base (13) is installed and fixed on the top surface of the equipment box (4), and four guide columns are evenly and vertically fixed around the top surface of the base (13), and the guide columns are slidably connected to the surfaces of the upper clamping plate (11) and the lower clamping plate (12).

4. The silicon steel sheet stacking device for a transformer core according to claim 1, characterized in that: The controller further comprises a sensor acquisition module; the sensor acquisition module is used to acquire state information of the motor (7), position information of the upper clamping plate (11) and the lower clamping plate (12), and pressure information of the silicon steel sheet during the lamination process through a sensor group; wherein the sensor group comprises a current sensor, a voltage sensor, a temperature sensor, a vibration sensor, an infrared sensor, a position sensor, and a pressure sensor; The current sensor and the voltage sensor are connected to the circuit of the motor (7), and a temperature sensor, a vibration sensor, and an infrared sensor are installed on the housing of the motor (7); the current sensor, the voltage sensor, the vibration sensor, and the temperature sensor are used to collect the current, voltage, vibration frequency, and surface temperature of the motor (7), respectively, and the infrared sensor is used to collect the infrared image of the surface of the motor (7); the position sensor is arranged on the guide column between the upper clamping plate (11) and the lower clamping plate (12), and is used to collect the position information of the upper clamping plate (11) and the lower clamping plate (12); a plurality of pressure sensors are arranged and evenly arranged on the laminating table (14), and are used to monitor the pressure information of the silicon steel sheet during the laminating process.

5. The silicon steel sheet stacking device for a transformer core according to claim 1, characterized in that: Monitor and analyze the status information of the motor (7), the specific analysis is as follows: Acquiring state information of the motor (7), including current, voltage, vibration frequency, and surface temperature; setting a normal value of any parameter in the state information, and performing a difference calculation between the value of any parameter in the state information and its normal value to obtain a normal deviation difference; The normal deviation difference of all parameters in the state information is weighted to obtain the normal deviation value; Acquire an infrared image of any side of the motor (7), analyze the infrared image of the motor (7), and obtain an infrared thermal image value; The normal deviation value and the infrared thermal image value in the motor monitoring time zone are weighted to obtain the motor state value.

6. The silicon steel sheet stacking device for a transformer core according to claim 1, characterized in that: The position information of the upper clamping plate (11) and the lower clamping plate (12) is monitored and analyzed, and the specific analysis is as follows: Obtaining a current production task, extracting a predetermined motion pattern of the upper clamping plate (11) and the lower clamping plate (12) from the production task, and extracting a preset motion trajectory and speed of the upper clamping plate (11) and the lower clamping plate (12) during the lamination process from the predetermined motion pattern; the motion trajectory includes the position and corresponding time of the upper clamping plate (11) and the lower clamping plate (12) on the guide column; Calculate the position deviation between the position of the upper clamping plate (11) and the lower clamping plate (12) at any time in the motor monitoring time zone and their preset positions to obtain a position deviation value; All position deviation values ​​within the motor operation time zone are weighted to obtain the position deviation impact value.

7. The silicon steel sheet stacking device for a transformer core according to claim 1, characterized in that: Monitor and analyze the pressure information on the silicon steel sheet during the lamination process. The specific analysis is as follows: The silicon steel sheet is divided into a number of overlapping areas, and overlapping weights are assigned to the overlapping areas; the pressure value of any overlapping area is obtained, and the pressure values ​​of all overlapping areas are averaged to obtain the pressure average; The pressure difference value is obtained by calculating the difference between the maximum and minimum pressure values ​​in all overlapping areas; The pressure difference value is calculated by performing a weighted summation process on the pressure difference values ​​of all overlapping areas and the overlapping weights corresponding to the overlapping areas to obtain an overlapping influence value; Obtain the superposition pressure impact value at any collection time in the motor monitoring time zone and perform variance calculation to obtain the superposition pressure fluctuation value; The pressure shadow value is obtained by weighting the pressure mean, pressure difference, overlay influence value and overlay fluctuation value.

8. The silicon steel sheet stacking device for a transformer core according to claim 5, characterized in that: The infrared image of the motor (7) is analyzed, specifically: Acquire an infrared image of any side of the motor (7), and magnify the infrared image to obtain a pixel grid image; identify the color value of any pixel grid in the pixel grid image; set a thermal value range group, including a plurality of thermal value ranges, and assign a thermal value weight e to each thermal value range; match the color value of the pixel grid with its thermal value range group, and mark the pixel grids in the same thermal value range as the same amplitude pixel grids; connect adjacent same amplitude pixel grids to obtain the same amplitude thermal value area; Calculate the area of ​​the same amplitude heat value region as the amplitude value, and unmark the same amplitude heat value region whose amplitude value is less than the preset screening area threshold; The number of regions with the same amplitude of heat value in the range of heat value is counted and marked as the same amplitude number; the color values ​​of all pixels in the region with the same amplitude of heat value are averaged to obtain the amplitude mean value; The same-amplitude thermal image values ​​are calculated for the amplitude values, the same-amplitude number, and the amplitude average values ​​of the same-amplitude thermal value areas within the same thermal value range; the same-amplitude thermal image values ​​within different thermal value ranges are weighted with their corresponding thermal value weights to obtain the thermal image values; and the thermal image values ​​of the infrared images of each surface of the motor (7) are weighted to obtain the infrared thermal image values.

9. The silicon steel sheet stacking device for a transformer core according to claim 1, characterized in that: Receive monitoring and analysis results, compare the monitoring and analysis results with the set thresholds, generate corresponding signaling and perform corresponding operations, as follows: Obtain monitoring and analysis results including motor status value, position deviation impact value, and pressure shadow value; If the motor state value is greater than the set abnormal threshold range, a motor overall state fault signal is generated; if the normal deviation value is within the set abnormal threshold range, a motor overall state abnormal signal is generated; if the normal deviation value is less than the set abnormal threshold range, it indicates that the motor is in a normal state, and a motor normal signal is generated; if the position deviation impact value is greater than the set abnormal threshold range, it indicates that the upper clamping plate (11) and the lower clamping plate (12) have a serious deviation from the preset position, and a serious deviation signal is generated; if the position deviation impact value is within the set abnormal threshold range, it indicates that the upper clamping plate (11) and the lower clamping plate (12) have a slight deviation from the preset position, and a slight deviation signal is generated; if the position deviation impact value is less than the set abnormal threshold range, it indicates that the position of the upper clamping plate (11) and the lower clamping plate (12) is in a normal state; if the pressure shadow value is not within the set normal threshold range, a silicon steel sheet stacking pressure comprehensive abnormal signal is generated; All signaling is sent to the data storage and display module; the data storage and display module receives all signaling and records the receiving time for display.

Images