Control system and method for fanning strip shaping pressure equipment

Abstract

The invention relates to the field of image analysis control, and particularly discloses a fan-shaped strip shaping pressure equipment control system and method, and the system comprises a visual detection module, an image generation module, an image analysis module, an analysis feedback module, and a pressure early warning module. The visual detection module obtains fan-shaped piece infrared processing, edge key point displacement and hydraulic cylinder movement information; the image generation module generates a corresponding image accordingly; the image analysis module judges whether pressurization shaping is abnormal or not according to the edge displacement path image and determines an area; the analysis feedback module finds out an abnormal reason, determines a pressure adjustment mode by combining other images and adjusts the pressure; according to the automatic shaping device for the fanning strip, the shaping pressure of the fanning strip can be accurately controlled, the deformation effect is optimized, the production efficiency is improved, uneven stress and material damage are reduced, and the machining stability and the product quality are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of image analysis, and in particular to a control system and method for sector-shaped sheet shaping pressure equipment. Background Art

[0002] Existing engine fan blade pressure shaping technology mainly relies on hydraulic presses or presses to apply pressure to the fan blades to achieve the desired shape and size. This process usually involves precise control of the edges of the fan blades to ensure uniform deformation of the material during the pressurization process. Traditional shaping techniques may include the use of mechanical presses, hydraulic forming technology, or matching molds to apply pressure. These methods can achieve the shaping of the fan blades to a certain extent, but there may be problems such as uneven stress distribution and inaccurate deformation control. With the development of technology, modern shaping technologies are increasingly integrating image analysis, sensor technology, and intelligent control systems to achieve real-time monitoring and precise control of the shaping process.

[0003] For example, the prior art discloses a method for visual monitoring of the stacking production of fan-shaped generators based on image processing. The method determines the edge deformation coefficient corresponding to each edge segment according to the extension performance of the extruded edge under the influence of extrusion stress; determines the extrusion depression coefficient corresponding to each edge segment based on the grayscale performance of the extrusion depression; thereby comprehensively representing the extrusion edge possibility of each edge segment through the edge deformation coefficient and the extrusion depression coefficient, making the extrusion edge of the motor fan-shaped piece represented by the real extrusion edge screened out according to the extrusion edge possibility more accurate, thereby achieving better visual monitoring of the stacking production of fan-shaped generators.

[0004] However, although this visual monitoring method improves the visual monitoring effect of the fan-shaped generator stacking production, it cannot achieve precise control of the local stress distribution and lacks the ability to adjust the pressure through real-time feedback, which makes it difficult to achieve fine management of deformation and stress distribution during the complex pressurization and shaping process. Summary of the invention

[0005] The purpose of the present invention is to provide a control system and method for a fan-shaped blade shaping pressure equipment, which can solve the problems of uneven stress distribution and inaccurate deformation control during the fan-shaped blade shaping process.

[0006] To this end, the present invention provides a sector-shaped sheet shaping pressure equipment control system, comprising: A visual inspection module, which is used to obtain infrared processing information of each sector, displacement information of each key point on the edge of the sector, and motion information of each hydraulic cylinder; An image generation module, connected to the visual detection module, for generating an infrared image of a sector according to the infrared processing information, generating an edge displacement path image of a corresponding key point according to the displacement information, and generating a pressurized stable image of a corresponding hydraulic cylinder according to the motion information; An image analysis module, which is connected to the visual detection module and the image generation module respectively, and is used to determine whether there is any shaping abnormality in the pressurized shaping of the fan-shaped piece according to all the edge displacement path images, and to determine the shaping abnormality area; An analysis feedback module, which is connected to the image generation module and the image analysis module respectively, and is used to determine the cause of the shaping abnormality according to the key points of the shaping abnormal area, and determine the shaping pressure adjustment method in combination with the infrared image of the fan-shaped piece or the pressurized stable image of each hydraulic cylinder; The pressure warning module is connected to the image analysis module and the analysis feedback module respectively, and is used to issue a plastic surgery abnormality warning according to the determination result of the plastic surgery abnormality.

[0007] As a preferred technical solution for a fan-shaped sheet shaping pressure equipment control system, the visual inspection module includes: An infrared information acquisition unit, comprising a first camera group, for acquiring the infrared processing information of each sector; The motion information acquisition unit includes a second camera group and a third camera group, wherein the second camera group is used to To obtain the displacement information of each key point on the edge of the sector piece, the third camera group is used to obtain the displacement information of each hydraulic cylinder; An information transmission unit is connected to the infrared information acquisition unit and the motion information acquisition unit respectively, and is used to transmit the infrared processing information, the displacement information and the motion information to the image generation module.

[0008] As a preferred technical solution for a control system of a fan-shaped sheet shaping pressure equipment, the image generation module will divide the fan-shaped sheet infrared image into several stress analysis areas according to the position of the hydraulic cylinder, and determine the key points contained in each stress analysis area; The total number of the stress analysis areas is the same as the total number of the hydraulic cylinders.

[0009] As a preferred technical solution for a fan-shaped piece shaping pressure equipment control system, the image analysis module determines the displacement stability parameters of each key point based on all the edge displacement path images, and determines whether there is shaping abnormality in the pressurized shaping of the fan-shaped piece based on all the displacement parameters in the fan-shaped piece; If the number of abnormal points is greater than the rated number of abnormal points, it is determined that there is a shaping abnormality in the pressurized shaping of the sector piece; If the displacement stability parameter of the key point is greater than or equal to the standard displacement stability parameter, the current key point is determined to be an abnormal point.

[0010] As a preferred technical solution for a sector-shaped sheet shaping pressure equipment control system, the image analysis module determines the shaping abnormality area based on the stress analysis area where the abnormal point is located.

[0011] As a preferred technical solution for a sector-shaped sheet shaping pressure equipment control system, the analysis feedback module determines the cause of the shaping abnormality according to the distribution of abnormal points in the shaping abnormal area; If the abnormal points exist continuously, the cause of the abnormal shaping is the uneven stress distribution of the fan-shaped sheet; If the abnormal points are not continuous, the cause of the abnormal shaping is that the shaping pressure is too high.

[0012] As an optimal technical solution for the control system of a fan-shaped sheet shaping pressure equipment, the analysis feedback model The block determines a shaping pressure adjustment method according to the infrared image of the sector piece and the continuous abnormal points; The analysis feedback module determines the stress analysis area in the infrared image of the sector sheet where the temperature is higher than the surrounding stress analysis area, and determines the stress analysis area where the continuous abnormal points are located, and reduces the pressure applied to the sector sheet by the corresponding hydraulic cylinder.

[0013] As a preferred technical solution for a control system of a fan-shaped sheet shaping pressure device, the analysis feedback module determines a shaping pressure adjustment method according to all the abnormal points; The analysis feedback module reduces the shaping pressure on the fan-shaped piece according to the average value of the displacement stability parameters of all the abnormal points.

[0014] As an optimal technical solution for a fan-shaped blade shaping pressure equipment control system, after the pressure applied by the hydraulic cylinder is adjusted, the pressure warning module issues a shaping abnormality warning to the analysis feedback module if the shaping abnormality judgment results show shaping abnormality for three or more consecutive times.

[0015] The present invention also provides a method comprising: Acquire the infrared processing information of each sector, the displacement information of each key point on the edge of the sector, and the motion information of each hydraulic cylinder; Generate an infrared image of a sector according to the infrared processing information, generate an edge displacement path image of a corresponding key point according to the displacement information, and generate a pressurized stable image of a corresponding hydraulic cylinder according to the motion information; Continuously judging whether there is any shaping abnormality in the pressurized shaping of the sector piece according to all the edge displacement path images, and determining the shaping abnormality area; Determine the cause of the shaping abnormality according to the shaping abnormal area, and determine the shaping pressure adjustment method in combination with the infrared image of the fan-shaped piece or the pressurized stable image of each hydraulic cylinder; Adjusting the shaping pressure of the fan-shaped piece according to the determined shaping pressure adjustment method; Determine whether to issue a shaping abnormality warning based on the shaping abnormality judgment result after the shaping pressure is adjusted.

[0016] The beneficial effects of the present invention are: The present invention can obtain the infrared processing information of the fan-shaped piece, the displacement information of the edge key points and the motion information of the hydraulic cylinder, generate corresponding infrared images and displacement path images, analyze and determine the shaping abnormality and its cause, and adjust the shaping pressure accordingly. The control method based on image analysis can accurately control the shaping pressure of the fan-shaped piece, optimize the deformation effect, improve production efficiency, reduce the deformation unevenness caused by stress concentration, avoid material fatigue and damage, timely discover and prevent potential problems in the pressurized shaping process, reduce the occurrence of failures, reduce material waste, and improve the flexibility, accuracy and safety of the overall processing process. In addition, the system can also issue an early warning when continuous shaping abnormalities occur, further ensuring the stability of the processing process and product quality, which is of great significance for the manufacture of key fan-shaped pieces in high-performance turbocharger systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a control system of a fan-shaped sheet shaping pressure device in an embodiment of the present invention; Figure 2 Schematic diagram of the structure of the visual detection module in an embodiment of the present invention; Figure 3 A logic block diagram for determining whether there is a plastic surgery abnormality in an embodiment of the present invention; Figure 4 It is a flow chart of the control method of the sector-shaped blade shaping pressure equipment in an embodiment of the present invention. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", The directions or positional relationships indicated by "right", "vertical", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] like Figure 1 As shown, it is a structural schematic diagram of a fan-shaped sheet shaping pressure equipment control system in an embodiment of the present invention. This embodiment provides a fan-shaped sheet shaping pressure equipment control system, including: A visual inspection module, which is used to obtain infrared processing information of each sector, displacement information of each key point on the edge of the sector, and motion information of each hydraulic cylinder; An image generation module, connected to the visual detection module, for generating an infrared image of a sector according to the infrared processing information, generating an edge displacement path image of a corresponding key point according to the displacement information, and generating a pressurized stable image of a corresponding hydraulic cylinder according to the motion information; An image analysis module, which is connected to the visual detection module and the image generation module respectively, and is used to determine whether there is any shaping abnormality in the pressurized shaping of the fan-shaped piece according to all the edge displacement path images, and to determine the shaping abnormality area; An analysis feedback module, which is connected to the image generation module and the image analysis module respectively, and is used to determine the cause of the shaping abnormality according to the key points of the shaping abnormal area, and determine the shaping pressure adjustment method in combination with the infrared image of the fan-shaped piece or the pressurized stable image of each hydraulic cylinder; The pressure warning module is connected to the image analysis module and the analysis feedback module respectively, and is used to issue a plastic surgery abnormality warning according to the determination result of the plastic surgery abnormality.

[0023] During implementation, several key points for displacement identification are marked on the edge of the sector piece. All the key points on the edge of a single sector piece can characterize the movement of each position of the sector piece after pressurization. The number of key points of a single sector piece is not less than the number of hydraulic cylinders plus 4. There are key points on each edge of the sector piece, and the key points on each edge are set at equal distances.

[0024] The present invention can obtain the infrared processing information of the fan-shaped piece, the displacement information of the edge key points and the motion information of the hydraulic cylinder, generate corresponding infrared images and displacement path images, analyze and determine the shaping abnormality and its cause, and adjust the shaping pressure accordingly. The control method based on image analysis can accurately control the shaping pressure of the fan-shaped piece, optimize the deformation effect, improve production efficiency, reduce the deformation unevenness caused by stress concentration, avoid material fatigue and damage, timely discover and prevent potential problems in the pressurized shaping process, reduce the occurrence of failures, reduce material waste, and improve the flexibility, accuracy and safety of the overall processing process. In addition, the system can also issue an early warning when continuous shaping abnormalities occur, further ensuring the stability of the processing process and product quality, which is of great significance for the manufacture of key fan-shaped pieces in high-performance turbocharger systems.

[0025] like Figure 2 As shown, it is a schematic diagram of the structure of the visual detection module in an embodiment of the present invention, and the visual detection module includes: An infrared information acquisition unit, comprising a first camera group, for acquiring the infrared processing information of each sector; A motion information acquisition unit, comprising a second camera group and a third camera group, wherein the second camera group is used to acquire the displacement information of each key point of the edge of the fan-shaped piece, and the third camera group is used to acquire the displacement information of each hydraulic cylinder; An information transmission unit is connected to the infrared information acquisition unit and the motion information acquisition unit respectively, and is used to transmit the infrared processing information, the displacement information and the motion information to the image generation module.

[0026] In practice, the image acquisition device in the first camera group is an infrared thermal imaging camera, which can detect the heat distribution on the surface of an object. The heat distribution is related to the stress distribution. When the fan blade is subjected to stress, its internal microstructure will change, resulting in changes in the thermal conductivity, specific heat capacity and other thermophysical properties of the material. According to the theory of thermoelasticity, this change will cause a slight change in the temperature of the material. The temperature change is usually very small, but it can be detected by a highly sensitive infrared thermal imaging camera. For example, under the action of tensile stress, the lattice spacing inside the material increases, the thermal conductivity decreases, and the heat transfer is hindered, resulting in a temperature increase in the stress concentration area; conversely, under compressive stress, the fan blade will experience a temperature decrease; The second camera group includes several high-resolution industrial cameras, which can obtain the position changes of each key point after pressurization; the third camera group includes several CCD cameras, which can observe the stroke changes of the cylinder in real time; The number of cameras in the third camera group is the same as the number of hydraulic cylinders. The number of cameras in the first camera group is determined according to the number of sectors pressurized at the same time. The number of cameras in the second camera group is not specifically limited, and the number of cameras can record the displacement information of all key points.

[0027] In detail, the image generation module will segment the infrared image of the sector into a number of stress analysis areas according to the position of the hydraulic cylinder, and determine the key points contained in each stress analysis area; The total number of the stress analysis areas is the same as the total number of the hydraulic cylinders.

[0028] In the above embodiment, a plurality of hydraulic cylinders are required to work simultaneously during the pressurization process of a sector piece, and pressurization is applied to multiple positions to achieve the effect of pressurizing the whole. By controlling the pressurization state of different hydraulic cylinders, the pressure distribution control of the entire sector piece pressurization process is achieved, that is, different pressures are applied to specific areas to achieve the expected deformation effect.

[0029] Furthermore, by dividing the sector into multiple stress analysis areas corresponding to the number of hydraulic cylinders, independent pressure control can be performed on each area, thereby achieving precise pressure distribution management, optimizing deformation effects, improving production efficiency, reducing uneven deformation caused by stress concentration, and avoiding material fatigue and damage. Regional division helps to promptly discover and prevent potential problems in the pressurized shaping process, reduce the occurrence of failures, make more effective use of materials, reduce waste, and improve the flexibility, accuracy and safety of the overall processing process.

[0030] like Figure 3As shown, it is a logic block diagram for determining whether there is a shaping abnormality in an embodiment of the present invention, wherein the image analysis module determines the displacement stability parameters of each key point according to all the edge displacement path images, and determines whether there is a shaping abnormality in the pressurized shaping of the fan-shaped piece according to all the displacement parameters in the fan-shaped piece; If the number of abnormal points is greater than the rated number of abnormal points, it is determined that there is a shaping abnormality in the pressurized shaping of the sector piece; If the displacement stability parameter of the key point is greater than or equal to the standard displacement stability parameter, the current key point is determined to be an abnormal point.

[0031] In the above embodiment, the displacement path image contains the coordinate information of the key point displacement, the displacement stability parameter is determined by comparing the average deviation of each coordinate information of the key point on the horizontal plane with the corresponding average value, and the standard displacement stability parameter is selected within the interval [0.005, 0.02]. In detail, if the calculation result of any coordinate in the plane coordinate information exceeds the standard displacement stability parameter for three or more consecutive times, the current key point is determined to be an abnormal point; It is understandable that the edge accuracy of the key fan-shaped blades in the high-performance turbocharger system in the automobile engine is directly related to key performance indicators such as the dynamic balance, airflow guidance and sealing performance of the turbine. Even a slight edge error may cause imbalance when the turbine rotates at high speed, resulting in increased vibration, reduced efficiency, and even damage to turbine components. Therefore, the edge error needs to be strictly controlled within an extremely small range to ensure the high performance and reliability of the entire turbocharger system.

[0032] In implementation, the rated number of anomalies is 4. It is understandable that there are cases where anomalies are distributed on different edges or discretely. It is also possible that the positional relationship between discrete points and the camera may cause deviations in the detection results, resulting in misjudgment of the anomalies of key points. Therefore, giving the key point tolerance can avoid the system from making incorrect adjustments.

[0033] Furthermore, by analyzing the displacement path image of the fan-shaped piece edge through the image analysis module, the displacement stability parameters of the key points can be determined, and based on this, it can be judged whether there are any abnormalities in the fan-shaped piece during the pressurization and shaping process. The displacement stability parameters are determined by calculating the ratio of the average deviation of each coordinate information of the key point on the horizontal plane to the average value, and this parameter is compared with the preset standard displacement stability parameter to identify abnormal points. Therefore, by setting the rated number of abnormalities, the detection deviation and misjudgment caused by the relationship between discrete points and camera positions can be effectively avoided, thereby ensuring the high performance and reliability of the entire turbocharger system, which not only improves the accuracy and consistency of fan-shaped piece processing, but also enhances the ability to detect potential problems in the processing process, providing a strong guarantee for the long-term stable operation of the fan-shaped piece.

[0034] In detail, the image analysis module determines the plastic surgery abnormality area according to the stress analysis area where the abnormal point is located.

[0035] In the above embodiment, the abnormal shaping area is determined under the condition of determining whether there is any shaping abnormality in the pressurized shaping of the sector piece. When there is no shaping abnormality, the current shaping pressure is maintained, that is, each hydraulic cylinder maintains the current shaping parameters to perform pressurized shaping of the sector piece.

[0036] In detail, the analysis and feedback module determines the cause of the plastic surgery abnormality according to the distribution of abnormal points in the plastic surgery abnormality area; If the abnormal points exist continuously, the cause of the abnormal shaping is the uneven stress distribution of the fan-shaped sheet; If the abnormal points are not continuous, the cause of the abnormal shaping is that the shaping pressure is too high.

[0037] In the above embodiment, the continuous existence of abnormal points means that there is no non-abnormal point among the abnormal points. If there is no non-abnormal point among two or more key points, it is determined that these abnormal points exist continuously.

[0038] It is understandable that excessive shaping pressure does have adverse effects on the edge of the fan-shaped sheet, such as causing cracks, plastic deformation, folds or wrinkles, and even damaging the surface of the material, resulting in scratches and dents; There is stress concentration before the fan-shaped piece is pressurized and shaped. The uneven stress will interfere with the accuracy of the pressurized shaping. During the shaping process, the stress will interact with the external pressure, making the deformation of the fan-shaped piece complicated. If the stress distribution is disorderly, different areas of the fan-shaped piece may deform unexpectedly during pressurization, making it difficult for the final shape to meet the ideal accuracy requirements. When there is stress in the fan-shaped piece, the irregularity of its surface flatness and edge shape will increase the difficulty of stacking. When the robot grabs and stacks the fan-shaped piece, the deformation caused by the stress may make it impossible for the fan-shaped pieces to fit tightly together, and gaps are easily generated, which not only affects the efficiency of stacking, but also causes uneven pressure distribution during the subsequent pressurization process. For example, the area with greater stress will be over-deformed under less pressure, while the area with less stress may still not reach the expected degree of deformation under normal pressure, making the quality of the entire fan-shaped piece assembly unstable and affecting the magnetic properties and mechanical strength of the iron core. In addition, when pressure is applied, stress concentration areas are likely to become the source of cracks. For example, at the corners of the fan-shaped pieces, due to stress concentration, when the pressure exceeds a certain limit, the material in this area may crack because it cannot withstand excessive stress. Once such cracks appear, they will seriously affect the quality and performance of the fan-shaped pieces, and may even cause the entire component to be scrapped.

[0039] In detail, the analysis and feedback module determines the shaping pressure adjustment method according to the infrared image of the fan-shaped piece and the continuous abnormal points; The analysis feedback module determines the stress analysis area in the infrared image of the sector sheet where the temperature is higher than the surrounding stress analysis area, and determines the stress analysis area where the continuous abnormal points are located, and reduces the pressure applied to the sector sheet by the corresponding hydraulic cylinder.

[0040] In the above embodiment, the analysis feedback module adjusts the pressure according to the infrared image of the sector piece and the continuous abnormal points under the condition that the cause of the shaping abnormality is the uneven stress distribution of the sector piece; If the pressure is reduced according to the infrared image, the pressure reduction amount is determined according to the percentage of the temperature exceeding the surrounding stress analysis area. If the pressure is reduced according to the continuous abnormal points, the reduced pressure is determined according to the ratio of the average displacement stability parameter of the continuous abnormal points to the standard displacement stability parameter.

[0041] Furthermore, the analysis and feedback module can visually observe the temperature distribution on the fan-shaped piece through infrared images, which is usually closely related to the stress state inside the material. The increase in temperature indicates that the area is subjected to higher stress and needs to be reduced to avoid excessive deformation or damage. Therefore, by reducing the pressure of the corresponding hydraulic cylinder, the stress concentration in these high-temperature areas is reduced, thereby avoiding abnormal shaping of the fan-shaped piece. At the same time, the monitoring of continuous abnormal points provides detailed information about the deformation mode of the fan-shaped piece. The deviation of the displacement stability parameters of these key points from the standard value characterizes the stress anomaly in the local area. By adjusting the hydraulic cylinder pressure in the area where these key points are located, the deformation can be corrected in a targeted manner to ensure the uniformity and balance of the entire fan-shaped piece.

[0042] In detail, the analysis and feedback module determines the shaping pressure adjustment method according to all the abnormal points; The analysis feedback module reduces the shaping pressure on the fan-shaped piece according to the average value of the displacement stability parameters of all the abnormal points.

[0043] In the above embodiment, the analysis feedback module determines that the cause of the shaping abnormality is excessive shaping pressure, and based on the pressurized stability image of each hydraulic cylinder, the piston rod of each hydraulic cylinder is operating normally, that is, there is no hydraulic cylinder with pressurized abnormality. The reduction in the shaping pressure of the fan-shaped piece is determined based on the ratio of the difference between the average value of the displacement stability parameter of the abnormal point and the standard displacement stability parameter to the standard displacement stability parameter.

[0044] In this embodiment, an obvious mark or code, such as a barcode, a QR code or a specific pattern, is set on the piston rod of the cylinder or a component related to the cylinder stroke. The industrial camera is fixed in a suitable position to ensure that the camera can clearly capture the mark or code on the cylinder piston rod. An appropriate light source is used to illuminate the cylinder piston rod to improve the clarity and contrast of the image to ensure that the mark or code can be clearly identified under different lighting conditions. The industrial camera captures the image of the mark or code on the cylinder piston rod in real time and records the time interval of each identification to generate a pressurized stable image. Whether the piston rod of the hydraulic cylinder is operating normally is determined based on the data discreteness of each pressurized stable image.

[0045] In detail, after the pressure applied by the hydraulic cylinder is adjusted, the pressure warning module sends a shaping abnormality warning to the analysis feedback module under the condition that the shaping abnormality determination results show shaping abnormality for three or more consecutive times.

[0046] like Figure 4 As shown, it is a flow chart of a method for controlling a fan-shaped sheet shaping pressure device in an embodiment of the present invention. The present invention also provides a method for controlling a fan-shaped sheet shaping pressure device, the method comprising: Step S1, acquiring the infrared processing information of each sector, the displacement information of each key point on the edge of the sector, and the motion information of each hydraulic cylinder; Step S2, generating an infrared image of a sector according to the infrared processing information, generating an edge displacement path image of a corresponding key point according to the displacement information, and generating a pressurized stable image of a corresponding hydraulic cylinder according to the motion information; Step S3, continuously judging whether there is any shaping abnormality in the pressurized shaping of the sector piece according to all the edge displacement path images, and determining the shaping abnormality area; Step S4, determining the cause of the abnormal shaping according to the abnormal shaping area, and combining the infrared image of the fan-shaped slice The image or the pressurized stable image of each hydraulic cylinder determines the shaping pressure adjustment method; Step S5, adjusting the shaping pressure of the fan-shaped piece according to the determined shaping pressure adjustment method; Step S6, determines whether to perform a shaping abnormality warning according to the shaping abnormality judgment result after the shaping pressure is adjusted. Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A fan-shaped sheet shaping pressure equipment control system, characterized in that: include: A visual inspection module, which is used to obtain infrared processing information of each sector, displacement information of each key point on the edge of the sector, and motion information of each hydraulic cylinder; An image generation module, connected to the visual detection module, for generating an infrared image of a sector according to the infrared processing information, generating an edge displacement path image of a corresponding key point according to the displacement information, and generating a pressurized stable image of a corresponding hydraulic cylinder according to the motion information; An image analysis module, which is connected to the visual detection module and the image generation module respectively, and is used to determine whether there is any shaping abnormality in the pressurized shaping of the fan-shaped piece according to all the edge displacement path images, and to determine the shaping abnormality area; An analysis feedback module, which is connected to the image generation module and the image analysis module respectively, and is used to determine the cause of the shaping abnormality according to the key points of the shaping abnormal area, and determine the shaping pressure adjustment method in combination with the infrared image of the fan-shaped piece or the pressurized stable image of each hydraulic cylinder; The pressure warning module is connected to the image analysis module and the analysis feedback module respectively, and is used to issue a plastic surgery abnormality warning according to the determination result of the plastic surgery abnormality.

2. The sector shaping pressure equipment control system according to claim 1 is characterized in that: The visual inspection module comprises: An infrared information acquisition unit, comprising a first camera group, for acquiring the infrared processing information of each sector; A motion information acquisition unit, comprising a second camera group and a third camera group, wherein the second camera group is used to acquire the displacement information of each key point of the edge of the fan-shaped piece, and the third camera group is used to acquire the displacement information of each hydraulic cylinder; An information transmission unit is connected to the infrared information acquisition unit and the motion information acquisition unit respectively, and is used to transmit the infrared processing information, the displacement information and the motion information to the image generation module.

3. The sector shaping pressure equipment control system according to claim 2 is characterized in that: The image generation module divides the infrared image of the fan-shaped sheet into a number of stress analysis areas according to the position of the hydraulic cylinder, and determines the key points contained in each stress analysis area; The total number of the stress analysis areas is the same as the total number of the hydraulic cylinders.

4. The sector shaping pressure equipment control system according to claim 3 is characterized in that: The image analysis module determines the displacement stability parameters of each key point according to all the edge displacement path images, and determines whether there is any shaping abnormality in the pressurized shaping of the sector-shaped piece according to all the displacement parameters in the sector-shaped piece; If the number of abnormal points is greater than the rated number of abnormal points, it is determined that there is a shaping abnormality in the pressurized shaping of the sector piece; If the displacement stability parameter of the key point is greater than or equal to the standard displacement stability parameter, the current key point is determined to be an abnormal point.

5. The sector shaping pressure equipment control system according to claim 4, characterized in that: The image analysis module determines the plastic surgery abnormality area according to the stress analysis area where the abnormal point is located.

6. The sector shaping pressure equipment control system according to claim 5, characterized in that: The analysis and feedback module determines the cause of the plastic surgery abnormality according to the distribution of abnormal points in the plastic surgery abnormality area; If the abnormal points exist continuously, the cause of the abnormal shaping is the uneven stress distribution of the fan-shaped sheet; If the abnormal points are not continuous, the cause of the abnormal shaping is that the shaping pressure is too high.

7. The sector shaping pressure equipment control system according to claim 6, characterized in that: The analysis and feedback module determines the shaping pressure adjustment method according to the infrared image of the fan-shaped piece and the continuous abnormal points; The analysis feedback module determines the stress analysis area in the infrared image of the sector sheet where the temperature is higher than the surrounding stress analysis area, and determines the stress analysis area where the continuous abnormal points are located, and reduces the pressure applied to the sector sheet by the corresponding hydraulic cylinder.

8. The sector shaping pressure equipment control system according to claim 7, characterized in that: The analysis and feedback module determines the shaping pressure adjustment method according to all the abnormal points; The analysis feedback module reduces the shaping pressure on the fan-shaped piece according to the average value of the displacement stability parameters of all the abnormal points.

9. The sector shaping pressure equipment control system according to claim 1, characterized in that: After the pressure applied by the hydraulic cylinder is adjusted, the pressure warning module sends a shaping abnormality warning to the analysis feedback module if the shaping abnormality determination results are three or more consecutive times that shaping abnormality exists.

10. A method for controlling a sector-shaped sheet shaping pressure equipment according to any one of claims 1 to 9, characterized in that the method include: Acquire the infrared processing information of each sector, the displacement information of each key point on the edge of the sector, and the motion information of each hydraulic cylinder; Generate an infrared image of a sector according to the infrared processing information, generate an edge displacement path image of a corresponding key point according to the displacement information, and generate a pressurized stable image of a corresponding hydraulic cylinder according to the motion information; Continuously judging whether there is any shaping abnormality in the pressurized shaping of the sector piece according to all the edge displacement path images, and determining the shaping abnormality area; Determine the cause of the shaping abnormality according to the shaping abnormal area, and determine the shaping pressure adjustment method in combination with the infrared image of the fan-shaped piece or the pressurized stable image of each hydraulic cylinder; Adjusting the shaping pressure of the fan-shaped piece according to the determined shaping pressure adjustment method; Determine whether to issue a shaping abnormality warning based on the shaping abnormality judgment result after the shaping pressure is adjusted.

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