A high-low voltage integrated casting structure

Abstract

The present invention provides a high-low voltage integrated casting structure, which includes an intermediate mold and two side molds. The two side molds are respectively a high-voltage winding mold area and a low-voltage winding mold area. The side mold includes a driving unit, a lead screw module unit, a curvature adjustment component, and several groups of first adjustment arms and second adjustment arms. Through the linkage design of the lead screw module unit, the first adjustment arm and the second adjustment arm, the present invention can quickly adjust the circumferential perimeter and the edge curvature of the support plate to adapt to winding structures of different sizes and shapes. The curvature adjustment component can precisely adjust the edge curvature of the support plate through the design of the second electric telescopic rod, the gear transmission system and the rotating pull rope, effectively avoiding the limitations of the traditional fixed mold design, ensuring the quality and precision of the winding encapsulation. The flexible adjustable structure reduces the need for different types of molds, eliminates the need to design special molds for different windings, greatly reduces the mold manufacturing and replacement costs, and improves the production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of transformers, and specifically to a high and low voltage integrated casting structure. Background Art

[0002] The high and low voltage integrated casting structure is widely used in dry-type transformers. Its main purpose is to integrally encapsulate the high voltage and low voltage windings to form an integral structure with good insulation and high mechanical strength. The high voltage winding and the low voltage winding are integrally coated with a resin material to form an integrated structure. Casting materials with excellent insulation properties such as epoxy resin are used to encapsulate the windings to isolate air and moisture. The windings need to be placed in a special mold before casting to ensure the accuracy of the structure's shape and size. According to requirements, reinforcing fiberglass or other materials can be set on the outer layer of the windings to enhance mechanical strength and impact resistance.

[0003] The mold plays an important role in the casting process. Its main functions include providing shape and size control. The mold determines the outer shape, size and relative positions of various parts of the casting structure, ensuring that the encapsulation effect of the windings and the resin meets the design requirements. During the casting process, the mold helps to fix the position of the windings and prevent offset or misalignment during casting. The internal structure design of the mold (such as casting holes and exhaust holes) helps to evenly distribute the casting material and avoid the generation of air bubbles, ensuring that the cured material is defect-free. The mold is usually made of metal or high-strength composite materials and can be used multiple times, greatly improving the efficiency and consistency of the casting process. In modern industry, the design of the mold is crucial for the success of the casting structure, and its manufacturing and maintenance are also part of the entire casting process.

[0004] Although the existing high and low voltage integrated casting structures perform excellently in terms of insulation and mechanical strength, the characteristics of their fixed structure design result in a relatively limited scope of application of the products. In the prior art, the sizes and shapes of most casting structures are fixed at the design stage and cannot be adjusted according to actual needs, making it difficult to adapt to diverse application scenarios. In addition, windings of different specifications and structures require corresponding molds. The diversification of molds increases production costs. At the same time, the difficulty in adjusting the molds also limits the flexibility of the casting process.

[0005] Therefore, the current high and low voltage integrated casting structures have problems such as poor adaptability, non-adjustable structure, and strong usage limitations, and it is difficult to meet the requirements of modern industry for diversification and efficient production. Aiming at the above technical defects, designing a high and low voltage integrated casting structure that can be adjusted can not only expand its scope of application, but also reduce production costs, improve production flexibility and equipment performance, which is an urgent technical problem to be solved in the current field. Summary of the Invention

[0006] The purpose of the present invention is to provide a high and low voltage integrated casting structure that can be flexibly adjusted.

[0007] To achieve the above object, the present invention proposes the following technical solution: A high and low voltage integrated casting structure, including an intermediate mold (100) and two side molds (200), the two side molds (200) are respectively a high voltage winding mold area and a low voltage winding mold area, and the side mold (200) includes:

[0008] A driving unit (201), the driving unit (201) is used to drive and adjust the position of the support plate (208);

[0009] A lead screw module unit, the lead screw module unit is installed at the output end of the driving unit (201), the lead screw module unit includes a lead screw (202), a nut (203) and a lifting disc (204), the nut (203) is threadedly connected to the lead screw (202), and the nut (203) is rotatably arranged in the lifting disc (204) to drive the lifting disc (204) to lift;

[0010] Several groups of first adjusting arms (205) and second adjusting arms (207), one end of the first adjusting arm (205) is movably connected to the lifting disc (204), one end of the second adjusting arm (207) is movably connected to the support plate (208), the first adjusting arm (205) and the second adjusting arm (207) are connected by a lock (206), the other end of the second adjusting arm (207) is detachably connected to the lock (206), and several groups of the first adjusting arms (205) and the second adjusting arms (207) cooperate to drive the support plate (208) to move to adjust the outer circumferential perimeter of the side mold (200);

[0011] A camber adjustment assembly (209), the camber adjustment assembly (209) is arranged between the second adjusting arm (207) and the support plate (208), and the camber adjustment assembly (209) is used to adjust the camber on both sides of the support plate (208).

[0012] Further, in the present invention, the intermediate mold (100) also includes a lead screw (202), a nut (203) and a lifting disc (204), and also includes a sleeve (101), an insertion tube (102) and a first electric telescopic rod (103), one end of the sleeve (101) is fixedly connected to the support plate (208), one end of the insertion tube (102) is fixedly connected to the lifting disc (204), one end of the insertion tube (102) penetrates into the sleeve (101) and is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to the sleeve (101).

[0013] Further, in the present invention, the driving unit (201) is a motor, and the output end of the motor is fixedly connected to the lead screw (202).

[0014] Furthermore, in the present invention, the curvature adjustment assembly (209) includes a second electric telescopic rod (2091), a transmission assembly (2092), a protective cover (2093), a rotating rod (2094), a pulling rope (2095), and a pulling rod (2096). One end of the second electric telescopic rod (2091) is movably connected to the second adjustment arm (207), and the other end of the second electric telescopic rod (2091) is movably connected to the transmission assembly (2092). When the second electric telescopic rod (2091) moves, the rotating rod (2094) is driven to rotate by the transmission assembly (2092). The transmission assembly (2092) is arranged on the protective cover (2093), and the protective cover (2093) is fixedly connected to the middle of the support plate (208). The rotating rod (2094) is movably connected to the middle of the support plate (208). One end of the pulling rope (2095) is fixedly connected to the rotating rod (2094), and the other end of the pulling rope (2095) is fixedly connected to the pulling rod (2096). The pulling rod (2096) is fixedly connected to the two side edges of the support plate (208).

[0015] Furthermore, in the present invention, the transmission assembly (2092) includes a toothed plate (2092-a), a return spring (2092-b), a gear (2092-c), a first bevel gear (2092-d), and a second bevel gear (2092-e). The second electric telescopic rod (2091) is movably connected to the toothed plate (2092-a). The two sides of the toothed plate (2092-a) are fixed with limiting rods, and the ends of the limiting rods are in contact with the inner wall of the protective cover (2093). One end of the return spring (2092-b) is fixedly connected to the protective cover (2093), and the other end of the return spring (2092-b) is fixedly connected to the bottom of the toothed plate (2092-a). The gear (2092-c) meshes with the toothed plate (2092-a), and the gear (2092-c) is movably connected to the protective cover (2093) through a movable shaft. The gear (2092-c) is fixedly connected to the first bevel gear (2092-d) through a transmission shaft. The first bevel gear (2092-d) meshes with the second bevel gear (2092-e), and the second bevel gear (2092-e) is fixedly installed on the rotating rod (2094).

[0016] Furthermore, in the present invention, it further includes an image acquisition unit, a processing unit, a wireless transmission unit, a display unit, and a power supply unit. The image acquisition unit is used to acquire the image screen of the support plate (208). The processing unit is used to process the acquired image. The processing unit transmits the image to the display unit through the wireless transmission unit for display. The power supply unit supplies power to the electrical equipment.

[0017] Further, in the present invention, the image acquisition unit is a camera, which is used to acquire the image of the support plate (208). The processing unit is a single-chip microcomputer, which is used to run the curvature calculation algorithm and perform control. The single-chip microcomputer is connected to the first electric telescopic rod (103), the electric push rod, and the second electric telescopic rod (2091). The wireless transmission unit is a wifi module, which is used to transmit data to external devices. The display unit is an LCD screen, which is used to display the calculation results and the image processing effect in real time.

[0018] Further, in the present invention, the single-chip microcomputer calculates the curvature of the support plate (208) through the curvature measurement algorithm. The curvature measurement algorithm includes the following steps:

[0019] Step 1: Acquire the captured image. The side image of the support plate (208) is acquired through the camera, and the image is input into the single-chip microcomputer in grayscale format.

[0020] Step 2: Histogram equalization. Enhance the contrast of the image to highlight the edge features of the support plate (208). Use the histogram equalization algorithm to stretch the pixel value distribution and improve the details of the dark and bright parts:

[0021] L: Pixel value range (usually 256), MN: Total number of pixels in the image, h(i): Cumulative number of pixels with grayscale value i;

[0022] Step 3: Binarization. Convert the enhanced grayscale image into a binary image, extract the contour of the support plate (208), select an appropriate threshold T, set the points with pixel values higher than T to 1, and the points lower than T to 0.

[0023]

[0024] Step 4: Large area filtering. Remove noise and background interference through morphological operations, only retain the part belonging to the support plate (208), perform connected component analysis to find all connected regions, and calculate the area A of each region i ;

[0025] Area filtering. Set an area threshold A min , and only retain the regions where A i ≥A min ;

[0026]

[0027] Step 5: Hole filling. Fill the holes in the binary image to ensure the integrity of the edge contour, which is achieved by using the seed filling method or morphological closing operation. where S is the structural element;

[0028] Step 6: Edge detection. Use the Canny or Sobel algorithm to extract the side edges of the support plate (208). The Canny algorithm extracts edges by calculating the gradient intensity and direction, and the extracted edges are denoted as E(x, y).

[0029] Step 7: Fit the edge curve. Use linear regression or polynomial fitting for the edge points to calculate the overall trend of the edge, and extract the set of edge points P = {(x i , y i ). Fit the edge curve with a quadratic polynomial: y = ax 2 + bx + c, and calculate a, b, and c by the least squares method.

[0030] Step 8: Calculate the degree of curvature. The degree of curvature is defined as the maximum deviation D between the edge curve and the ideal straight line. The ideal straight line: the straight line L(x) = m·x + b between the two endpoints.

[0031] Deviation calculation, D = max|y i - L(x i )|.

[0032] Furthermore, in the present invention, the single-chip microcomputer runs the degree-of-curvature calculation algorithm and controls the operation of the second electric telescopic rod (2091) according to the algorithm result to adjust the degree of curvature of the edge of the support plate (208).

[0033] Furthermore, in the present invention, both ends of the pull rod (2096) extend to the upper and lower ends of the support plate (208), the number of the pull ropes (2095) is not less than four, and the support plate (208) is a flexible metal plate.

[0034] Beneficial effects. The technical solution of this application has the following technical effects:

[0035] Through the linkage design of the lead screw module unit, the first adjusting arm, and the second adjusting arm, the present invention can quickly adjust the circumferential perimeter and the edge curvature of the support plate, adapt to winding structures of different sizes and shapes, greatly improve the applicable range. The curvature adjustment component can accurately adjust the edge curvature of the support plate through the design of the second electric telescopic rod, the gear transmission system, and the rotating pull rope, effectively avoiding the limitations of the traditional fixed mold design, ensuring the quality and precision of the winding encapsulation. The flexible adjustable structure reduces the need for different types of molds, eliminates the need to design special molds for different windings, greatly reduces the mold manufacturing and replacement costs, and improves the production efficiency.

[0036] 2. The integration of the image acquisition unit, the single-chip microcomputer, the wireless transmission unit and the display unit enables the real-time monitoring and display of the state and curvature of the support plate. The single-chip microcomputer adjusts the shape of the support plate in real time through the curvature measurement algorithm, improving the degree of automation and operation efficiency. Each functional unit adopts a modular design, which is easy to install, replace and maintain, reduces equipment downtime, and improves the process production efficiency. The automated adjustment and control design reduces the dependence on manual operation, and at the same time reduces the errors that may be introduced by manual adjustment through precise algorithms, ensuring the consistency and reliability of the product.

[0037] It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be regarded as part of the inventive subject matter of the present disclosure as long as such concepts do not conflict with each other.

[0038] The foregoing and other aspects, embodiments and features of the teachings of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of exemplary embodiments, will be apparent in the following description, or will be learned through the practice of specific embodiments according to the teachings of the present invention. Brief Description of the Drawings

[0039] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in each figure may be represented by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present invention will be described by way of example and with reference to the drawings, wherein:

[0040] Figure 1 is a schematic structural diagram of the present invention.

[0041] Figure 2 is a schematic partial structural diagram of the present invention.

[0042] Figure 3 is a schematic partial structural diagram of the present invention.

[0043] Figure 4 is a schematic partial structural diagram of the present invention.

[0044] Figure 5 is a schematic partial structural diagram of the present invention.

[0045] Figure 6 is a schematic connection structure diagram of the motor and the lead screw of the present invention.

[0046] Figure 7 is a schematic system diagram of the present invention.

[0047] In the figure, the meanings of the respective reference numerals are as follows: 100, intermediate mold; 101, sleeve; 102, insertion tube; 103, first electric telescopic rod; 200, side mold; 201, drive unit; 202, lead screw; 203, nut; 204, lifting plate; 205, first adjustment arm; 206, lock; 207, second adjustment arm; 208, support plate; 209, curvature adjustment assembly; 2091, second electric telescopic rod; 2092, transmission assembly; 2092-a, toothed plate; 2092-b, return spring; 2092-c, gear; 2092-d, first bevel gear; 2092-e, second bevel gear; 2093, protective cover; 2094, rotating rod; 2095, pull rope; 2096, pull rod. Detailed implementation manners

[0048] To better understand the technical content of the present invention, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows. In the present disclosure, aspects of the present invention are described with reference to the accompanying drawings, and many illustrative embodiments are shown in the drawings. The embodiments of the present disclosure do not necessarily define all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not limited to any implementation manner. Additionally, some aspects of the present invention can be used alone or in any suitable combination with other aspects disclosed in the present invention.

[0049] Embodiment 1

[0050] As Figures 1-6 shown, a high-low voltage integrated casting structure includes an intermediate mold 100 and two side molds 200. The two side molds 200 are respectively a high-voltage winding mold area and a low-voltage winding mold area. The side mold 200 includes a drive unit 201, a lead screw module unit, a curvature adjustment assembly 209, and several groups of first adjustment arms 205 and second adjustment arms 207. The drive unit 201 is a motor, and the drive unit 201 is used to drive and adjust the position of the support plate 208. The support plate 208 is a metal plate with a certain flexibility.

[0051] The lead screw module unit is installed at the output end of the drive unit 201. The lead screw module unit includes a lead screw 202, a nut 203, and a lifting plate 204. The output end of the motor is fixedly connected to the lead screw 202. By using motor drive and a single-chip microcomputer control system, manual operation is greatly reduced, and work efficiency and adjustment accuracy are improved. The nut 203 is threadedly connected to the lead screw 202, and the nut 203 is rotatably arranged in the lifting plate 204 to drive the lifting plate 204 to lift. Through the lead screw module unit and the curvature adjustment assembly 209, the circumferential length and curvature of the side mold 200 can be dynamically adjusted with high precision to meet the encapsulation requirements of different windings;

[0052] One end of the first adjusting arm 205 is movably connected to the lifting disc 204, and one end of the second adjusting arm 207 is movably connected to the support plate 208. The first adjusting arm 205 and the second adjusting arm 207 are connected by a locking device 206. The other end of the second adjusting arm 207 is detachably connected to the locking device 206. Several groups of the first adjusting arm 205 and the second adjusting arm 207 cooperate to drive the support plate 208 to move, so as to adjust the outer circumferential perimeter of the side mold 200. The mold has a wide adjustable range, can adapt to windings of different sizes and shapes, and has strong versatility;

[0053] The camber adjusting assembly 209 is arranged between the second adjusting arm 207 and the support plate 208, and the camber adjusting assembly 209 is used to adjust the camber on both sides of the support plate 208.

[0054] During use, in the initial preparation stage, the middle mold 100 and the two side molds 200 are placed at the designated positions, placed in the mold barrel, and adjusted to a predetermined shape through the support plate 208. The driving unit 201 is started, the motor drives the lead screw 202 to rotate, drives the nut 203 to move along the lead screw, and further controls the up and down two lifting discs 204 to perform lifting actions of approaching or moving away. The circumferential adjustment of the side mold can be carried out. The lifting of the lifting disc 204 is linked by several groups of the first adjusting arm 205 and the second adjusting arm 207 to realize the expansion or contraction of the support plate 208, and adjust the outer circumferential perimeter of the side mold 200 to meet the size requirements of different windings.

[0055] The first adjusting arm 205 and the second adjusting arm 207 are connected by a locking device 206, and the detachable design facilitates maintenance and mold adjustment. The camber adjusting assembly 209 is used to further adjust the camber on both sides of the support plate 208 to ensure that the mold adapts to the non-straight characteristics of the winding. During adjustment, the second electric telescopic rod 2091 in the camber adjusting assembly is started, drives the rotating rod 2094 to rotate through the transmission assembly 2092, drives the pulling rope 2095 and the pulling rod 2096, so as to apply force to precisely adjust the camber on both sides of the support plate. The image acquisition unit monitors the effect of the camber adjustment in real time, and the single-chip microcomputer controls the action of the second electric telescopic rod according to the calculated camber to ensure that the camber adjustment is accurate. During the casting process, after the mold adjustment is completed, the high-voltage and low-voltage windings are placed into the mold, and casting materials such as resin are injected through the casting holes on the mold and cured under vacuum conditions to form an integral structure.

[0056] Embodiment 2

[0057] Based on Embodiment 1, in this embodiment, the intermediate mold 100 also includes a lead screw 202, a nut 203, and a lifting plate 204. It further includes a sleeve 101, an insertion tube 102, and a first electric telescopic rod 103. One end of the sleeve 101 is fixedly connected to the support plate 208, and one end of the insertion tube 102 is fixedly connected to the lifting plate 204. One end of the insertion tube 102 penetrates into the sleeve 101 and is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to the sleeve 101. During use, the first electric telescopic rod 103 can drive the side molds 200 on both sides to approach or move away from the intermediate mold 100. At the same time, the electric push rod can drive the sleeve 101 to slide on the insertion tube 102 for adjustment in cooperation with the side mold 200.

[0058] In this embodiment, the camber adjustment assembly 209 includes a second electric telescopic rod 2091, a transmission assembly 2092, a protective cover 2093, a rotating rod 2094, a pull rope 2095, and a pull rod 2096. One end of the second electric telescopic rod 2091 is movably connected to the second adjusting arm 207, and the other end of the second electric telescopic rod 2091 is movably connected to the transmission assembly 2092. When the second electric telescopic rod 2091 moves, it drives the rotating rod 2094 to rotate through the transmission assembly 2092. The transmission assembly 2092 is arranged on the protective cover 2093, and the protective cover 2093 is fixedly connected to the middle of the support plate 208. The rotating rod 2094 is movably connected to the middle of the support plate 208. One end of the pull rope 2095 is fixedly connected to the rotating rod 2094, and the other end of the pull rope 2095 is fixedly connected to the pull rod 2096. The pull rod 2096 is fixedly connected to the two side edges of the support plate 208, and both ends of the pull rod 2096 extend to the upper and lower ends of the support plate 208. The number of pull ropes 2095 is not less than four.

[0059] The transmission assembly 2092 includes a toothed plate 2092-a, a return spring 2092-b, a gear 2092-c, a first bevel gear 2092-d, and a second bevel gear 2092-e. The second electric telescopic rod 2091 is movably connected to the toothed plate 2092-a. Limiting rods are fixed on both sides of the toothed plate 2092-a, and the ends of the limiting rods are in contact with the inner wall of the protective cover 2093. One end of the return spring 2092-b is fixedly connected to the protective cover 2093, and the other end of the return spring 2092-b is fixedly connected to the bottom of the toothed plate 2092-a. The gear 2092-c meshes with the toothed plate 2092-a, and the gear 2092-c is movably connected to the protective cover 2093 through a movable shaft. The gear 2092-c is fixedly connected to the first bevel gear 2092-d through a transmission shaft. The first bevel gear 2092-d meshes with the second bevel gear 2092-e, and the second bevel gear 2092-e is fixedly installed on the rotating rod 2094.

[0060] In the use of this embodiment, in the initial preparation stage, the middle mold 100 and the two side molds 200 are placed at the designated positions, placed in the mold barrel, and adjusted to a predetermined shape through the support plate 208. The driving unit 201 is started, the screw rod 202 is rotated by the motor, the nut 203 is driven to move along the screw rod. When the two lifting disks 204 are driven to approach, the lifting disk 204 drives the first adjusting arm 205 and the second adjusting arm 207 to tilt. The two second adjusting arms 207 respectively drive the second electric telescopic rod 2091 to move. At this time, the second electric telescopic rod does not need to be started temporarily. The second electric telescopic rod 2091 drives the toothed plate 2092-a to slide in the protective cover 2093. The toothed plate 2092-a drives the gear 2092-c to rotate. The gear 2092-c drives the first bevel gear 2092-d to rotate. The first bevel gear 2092-d drives the second bevel gear 2092-e to rotate. The second bevel gear 2092-e drives the rotating rod 2094 to rotate. The rotating rod 2094 drives the plurality of pull ropes 2095 on both sides to move. The other ends of the pull ropes 2095 are fixedly connected to the pull rod 2096. The pull rod 2096 drives the flexible support plate 208 to bend.

[0061] When it is necessary to electrically adjust the bending degree of the support plate 208, starting the second electric telescopic rod 2091 to drive the toothed plate 2092-a to move is sufficient. The circumferential adjustment of the side mold can be carried out, the expansion or contraction of the support plate 208 can be realized, and the external circumferential perimeter of the side mold 200 can be adjusted to meet the size requirements of different windings.

[0062] When electrically adjusting the bending degree of the support plate 208, the following structure can be used for automatic identification and adjustment. The specific structure further includes an image acquisition unit, a processing unit, a wireless transmission unit, a display unit, and a power supply unit. The image acquisition unit is used to acquire the image of the support plate 208. The processing unit is used to process the acquired image. The processing unit transmits the image to the display unit through the wireless transmission unit for display. The power supply unit supplies power to the electrical equipment.

[0063] In this embodiment, the image acquisition unit is a camera, which is used to obtain the image of the support plate 208. The processing unit is a single-chip microcomputer, which is used to run the bending degree calculation algorithm and perform control. The single-chip microcomputer is connected to the first electric telescopic rod 103, the electric push rod, and the second electric telescopic rod 2091. The wireless transmission unit is a wifi module, which is used to transmit data to external devices. The display unit is an LCD screen, which is used to display the calculation results and the image processing effects in real time.

[0064] In this embodiment, the single-chip microcomputer calculates the bending degree of the support plate 208 through the bending degree measurement algorithm. The bending degree measurement algorithm includes the following steps:

[0065] Step 1: Obtain the captured image. Acquire the side image of the support plate 208 through a camera and input the image in grayscale format into the microcontroller.

[0066] Step 2: Histogram equalization. Enhance the contrast of the image to highlight the edge features of the support plate 208. Use the histogram equalization algorithm to stretch the pixel value distribution and improve the details in the dark and bright parts:

[0067] L: Pixel value range (usually 256), MN: Total number of pixels in the image, h(i): Cumulative number of pixels with gray value i;

[0068] Step 3: Binarization. Convert the enhanced grayscale image into a binary image, extract the contour of the support plate (208), select an appropriate threshold T, set the points with pixel values higher than T to 1, and the points lower than T to 0.

[0069]

[0070] Step 4: Large-area filtering. Remove noise and background interference through morphological operations, only retain the part belonging to the support plate (208), perform connected component analysis to find all connected regions, and calculate the area A of each region i ;

[0071] Area filtering. Set an area threshold A min , and only retain the regions where A i ≥A min ;

[0072]

[0073] Step 5: Hole filling. Fill the holes in the binary image to ensure the integrity of the edge contour, which can be achieved using the seed filling method or morphological closing operation. where S is the structuring element;

[0074] Step 6: Edge detection. Use the Canny or Sobel algorithm to extract the side edges of the support plate 208. For the Canny algorithm, extract the edges by calculating the gradient intensity and direction, and denote the extracted edges as E(x, y).

[0075] Step 7: Fit the edge curve. Fit the edge points using linear regression or polynomial fitting to calculate the overall trend of the edge. Extract the set of edge points P = {(x i , y i )}, and fit the edge curve with a quadratic polynomial: y = ax 2 + bx + c, and calculate a, b, c using the least squares method.

[0076] Step 8: Calculate the degree of curvature. The degree of curvature is defined as the maximum deviation D between the edge curve and the ideal straight line. Ideal straight line: The straight line L(x) = m·x + b passing through the two endpoints;

[0077] Deviation calculation, D = max|y i - L(x i )|.

[0078] In this embodiment, the single-chip microcomputer runs the curvature calculation algorithm and controls the operation of the second electric telescopic rod 2091 according to the algorithm result to adjust the curvature of the edge of the support plate 208, thereby realizing the automatic electric adjustment of the curvature of the support plate 208, being able to accurately adjust the curvature of the edge of the support plate, effectively avoiding the limitations of the traditional fixed mold design, and ensuring the quality and accuracy of the winding packaging.

[0079] Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to what is defined by the claims.

Claims

1. A high-low voltage integrated casting structure, comprising a middle mold (100) and two side molds (200), wherein the two side molds (200) are respectively a high voltage winding mold area and a low voltage winding mold area, characterized in that: The side mold (200) comprises: A driving unit (201), the driving unit (201) being used to drive and adjust the position of the supporting plate (208); A lead screw module unit, the lead screw module unit being mounted at the output end of the drive unit (201), the lead screw module unit comprising a lead screw (202), a nut (203) and a lifting plate (204), the nut (203) being threadedly connected to the lead screw (202), and the nut (203) being rotatably disposed in the lifting plate (204) to drive the lifting plate (204) to move up and down; A plurality of groups of first adjustment arms (205) and second adjustment arms (207), one end of the first adjustment arm (205) being movably connected to the lifting plate (204), one end of the second adjustment arm (207) being movably connected to the support plate (208), the first adjustment arm (205) and the second adjustment arm (207) being connected via a lock (206), the other end of the second adjustment arm (207) being detachably connected to the lock (206), the plurality of groups of the first adjustment arms (205) and the second adjustment arms (207) cooperating to drive the support plate (208) to move, so as to adjust the outer circumference of the side mold (200); A curvature adjustment component (209), wherein the curvature adjustment component (209) is arranged between the second adjustment arm (207) and the support plate (208), and the curvature adjustment component (209) is used to adjust the curvature of both sides of the support plate (208).

2. A high and low pressure integrated casting structure according to claim 1, characterized in that: The intermediate mold (100) also includes a screw rod (202), a nut (203) and a lifting plate (204), and also includes a sleeve (101), an insert pipe (102) and a first electric telescopic rod (103), one end of the sleeve (101) is fixedly connected to the support plate (208), one end of the insert pipe (102) is fixedly connected to the lifting plate (204), one end of the insert pipe (102) passes through the sleeve (101) and is fixedly connected to the electric push rod, and the output end of the electric push rod is fixedly connected to the sleeve (101).

3. The high-low pressure integrated casting structure according to claim 1, characterized in that: The driving unit (201) is a motor, and the output end of the motor is fixedly connected to the lead screw (202).

4. The high-low pressure integrated casting structure according to claim 1, characterized in that: The curvature adjustment component (209) comprises a second electric telescopic rod (2091), a transmission component (2092), a protective cover (2093), a rotating rod (2094), a pull rope (2095) and a pulling rod (2096); one end of the second electric telescopic rod (2091) is movably connected to the second adjustment arm (207); the other end of the second electric telescopic rod (2091) is movably connected to the transmission component (2092); when the second electric telescopic rod (2091) moves, the transmission component (2092) ) drives the rotating rod (2094) to rotate, the transmission assembly (2092) is arranged on the protective cover (2093), the protective cover (2093) is fixedly connected to the middle part of the support plate (208), the rotating rod (2094) is movably connected to the middle part of the support plate (208), one end of the pull rope (2095) is fixedly connected to the rotating rod (2094), and the other end of the pull rope (2095) is fixedly connected to the pulling rod (2096), and the pulling rod (2096) is fixedly connected to the two side edges of the support plate (208).

5. The high-low pressure integrated casting structure according to claim 4, characterized in that: The transmission assembly (2092) comprises a toothed plate (2092-a), a return spring (2092-b), a gear (2092-c), a first bevel gear (2092-d), and a second bevel gear (2092-e); the second electric telescopic rod (2091) is movably connected to the toothed plate (2092-a); limiting rods are fixed on both sides of the toothed plate (2092-a); the ends of the limiting rods are in contact with the inner wall of the protective cover (2093); one end of the return spring (2092-b) is fixedly connected to the protective cover (2093); the return spring (2092-b) is fixedly connected to the protective cover (2093); and the second electric telescopic rod (2091) is movably connected to the toothed plate (2092-a). The other end of the spring (2092-b) is fixedly connected to the bottom of the tooth plate (2092-a), the gear (2092-c) is meshed with the tooth plate (2092-a), the gear (2092-c) is movably connected to the protective cover (2093) via a movable shaft, the gear (2092-c) is fixedly connected to the first bevel gear (2092-d) via a transmission shaft, the first bevel gear (2092-d) is meshed with the second bevel gear (2092-e), and the second bevel gear (2092-e) is fixedly mounted on the rotating rod (2094).

6. The high-low pressure integrated casting structure according to claim 5, characterized in that: It also includes an image acquisition unit, a processing unit, a wireless transmission unit, a display unit and a power supply unit, wherein the image acquisition unit is used to acquire an image of the support plate (208), the processing unit is used to process the acquired image, the processing unit transmits the image to the display unit via the wireless transmission unit for display, and the power supply unit supplies power to the electrical equipment.

7. The high-low pressure integrated casting structure according to claim 6, characterized in that: The image acquisition unit is a camera, which is used to acquire an image of the support plate (208); the processing unit is a single-chip microcomputer, which is used to run a curvature calculation algorithm and perform control; the single-chip microcomputer is connected to the first electric telescopic rod (103), the electric push rod and the second electric telescopic rod (2091); the wireless transmission unit is a wifi module, which is used to transmit data to an external device; and the display unit is an LCD screen, which is used to display calculation results and image processing effects in real time.

8. The high-low pressure integrated casting structure according to claim 7, characterized in that: The single chip computer calculates the curvature of the support plate (208) by using a curvature measurement algorithm, and the curvature measurement algorithm comprises the following steps: Step 1: Obtaining a captured image, obtaining a side image of the support plate (208) through a camera, and inputting the image into a single chip microcomputer in a grayscale format; Step 2: histogram equalization to enhance the contrast of the image so as to highlight the edge features of the support plate (208); Use the histogram equalization algorithm to stretch the pixel value distribution and improve the details of dark and bright areas; Step 3: Binarization processing, converting the enhanced grayscale image into a binary image, extracting the contour of the support plate (208), selecting a suitable threshold 𝑇, setting the points with pixel values ​​higher than 𝑇 to 1, and setting the points with pixel values ​​lower than 𝑇 to 0; Step 4: Large area filtering, remove noise and background interference through morphological operations, retain only the part belonging to the support plate (208), connective domain analysis, find all connected areas, and calculate the area of ​​each area 𝐴 𝑖 ; Area filtering, set an area threshold 𝐴 min , only keep 𝐴 𝑖 ≥ 𝐴 min area; Step 5: Hole filling: fill the holes in the binary image to ensure that the edge contour is complete, using the seed filling method or morphological closing operation; Step 6: Edge detection, using the Canny or Sobel algorithm to extract the side edge of the support plate (208). The Canny algorithm extracts the edge by calculating the gradient strength and direction. The extracted edge is recorded as 𝐸 ( 𝑥 , 𝑦 ); Step 7: Fit the edge curve, use linear regression or polynomial to fit the edge points, calculate the overall trend of the edge, extract the edge point set, and fit the edge curve with a quadratic polynomial: , calculate a, b, c by the least squares method; Step 8: Calculate the curvature, which is defined as the maximum deviation D between the edge curve and the ideal straight line. The ideal straight line is the straight line between the two end points. ; Deviation calculation, .

9. The high-low pressure integrated casting structure according to claim 8, characterized in that: The single chip computer runs a curvature calculation algorithm and controls the operation of the second electric telescopic rod (2091) according to the algorithm result, so as to adjust the curvature of the edge of the support plate (208).

10. The high-low pressure integrated casting structure according to claim 4, characterized in that: Both ends of the pulling rod (2096) extend to the upper and lower ends of the support plate (208), the number of the pulling ropes (2095) is not less than four, and the support plate (208) is a flexible metal plate.

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