Enameled wire surface defect detection device for enameled wire production

Abstract

The invention discloses an enamelled wire surface defect detection device for enamelled wire production, and relates to the technical field of enamelled wire detection, the enamelled wire surface defect detection device comprises a rack, a straightening machine is arranged on one side of the top end of the rack, and the straightening machine is used for straightening and conveying an enamelled wire; and the mounting frame is fixedly arranged at the top end of the rack, and fixed guide rails are arranged on the two sides of the interior of the mounting frame. Through the vibration suppression frame and the vibration suppression assembly, harmful high-frequency vibration is attenuated, wires are stabilized, meanwhile, low-frequency floating of the wires is converted into a power source for driving the mirror surface to swing, and in the swinging process, the angle and distance between the mirror surface plate and the surface defect position of the enameled wire change in real time; the brightness and direction change rule of reflected light at the defect are obviously different from those of a normal area, characteristic'dynamic smear 'is formed in camera images, the upper and lower detection cameras continuously shoot, and the surface defect can be accurately positioned and identified by analyzing the unique dynamic optical characteristics in an image sequence.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of enameled wire detection, and particularly relates to an enameled wire surface defect detection device for enameled wire production. BACKGROUND

[0002] In traditional enameled wire surface defect detection, a fixed light source and a camera are often used to take static photos of the wire in transmission. This method mainly has the following limitations:

[0003] Since the enameled wire is a cylinder, a fixed-angle light source and camera are difficult to completely capture the morphology of the entire circumferential surface of the enameled wire, and thus a detection blind area is easily formed on the side of the enameled wire.

[0004] In addition, under static uniform illumination, some subtle cracks, shallow depressions or bulges with little contrast to the background are not obvious in optical characteristics, and are easily missed. SUMMARY

[0005] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification of the present application in order to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0006] In view of the above and / or existing problems in the enameled wire surface defect detection device for enameled wire production, the present application is proposed.

[0007] Therefore, the problem to be solved by the present application is how to solve the problem that the fixed light source cannot completely capture the morphology of the entire circumferential surface of the enameled wire, and subtle cracks, shallow depressions or bulges with little contrast to the background are not obvious in optical characteristics and are easily missed.

[0008] To solve the above technical problems, the present application provides the following technical solutions: a kind of enameled wire surface defect detection device for enameled wire production, it includes, rack, the top one side of which is provided with straightening machine, for straightening transmission enameled wire;Mounting frame is fixedly arranged at the top of rack, and the inside of mounting frame is provided with fixed guide rail on both sides;Transmission component is provided with two groups, respectively arranged in the inside of two fixed guide rails, for guiding enameled wire;Detection frame is arranged at the center of mounting frame, and the inside of detection frame is provided with light supplementing lamp plate at four top corners, and detection camera is arranged in the inside of detection frame, for detecting the defect on the surface of enameled wire, and the inside of detection frame is provided with two groups of movable frame, each movable frame contains two slidingly connected movable frames, and the upper and lower directions of the two groups of movable frames are opposite, and the opposite side of four movable frames is all inclined surface, and mirror plate is arranged at the inclined surface, and transmission gap is formed between four inclined surfaces, and the enameled wire to be detected can pass through transmission gap;Vibration suppression frame is arranged with two groups, and is fixedly arranged at the two ends of detection frame, and includes fixed frame connected with detection frame, and sliding frame is slidingly arranged in the inside of fixed frame, and bottom guide roller is fixedly arranged at the inside bottom of sliding frame, and upper guide roller is slidingly arranged at the top of bottom guide roller in the inside of sliding frame, and vibration suppression component is arranged at the bottom of sliding frame.

[0009] As a preferred scheme of the enameled wire surface defect detection device for enameled wire production, the transmission component includes two sliding blocks slidingly arranged on both sides of the inside of the fixed guide rail, a connecting sleeve is rotatably arranged in the inside of the sliding block, a threaded shaft is threadedly connected to the inside of the connecting sleeve, a tapered sleeve is arranged at the bottom end of the threaded shaft, a rubber sleeve is sleeved on the outer periphery of the tapered sleeve, and a plurality of irregular bosses are arranged on the outer periphery of the rubber sleeve.

[0010] As a preferred scheme of the enameled wire surface defect detection device for enameled wire production, the top end of the threaded shaft is provided with a hand wheel, a pin hole is formed in the inside of the hand wheel, a plug shaft is slidingly arranged in the inside of the pin hole, a pressing plate is arranged at the bottom end of the plug shaft, and a locking groove matched with the pressing plate is formed in the position corresponding to the connecting sleeve.

[0011] As a preferred scheme of the enameled wire surface defect detection device for enameled wire production, the bottom end of the tapered sleeve is threadedly connected with a baffle plate for fixing the rubber sleeve.

[0012] As a preferred scheme of the enameled wire surface defect detection device for enameled wire production, the center of the upper guide roller is provided with a guide roller shaft, sliding blocks are arranged at both ends of the guide roller shaft, and the two sliding blocks are slidingly arranged in the inside of the slide rails on both sides of the inside of the sliding frame.

[0013] As a preferred embodiment of the surface defect detection device for enameled wire production described in this invention, the movable frame is slidably provided with an insert plate at one end facing the inner wall of the detection frame, and a vertical guide rail is provided at the other end of the insert plate. The vertical guide rail is fixedly connected to the inner wall of the detection frame, and a rotating groove for installing a mirror panel is provided on the inclined side of the movable frame.

[0014] As a preferred embodiment of the surface defect detection device for enameled wire production described in this invention, the mirror panel is provided with connecting shafts at both ends, the connecting shafts are inserted into the groove walls at both ends of the rotating groove, and the mirror panel is rotatably installed inside the rotating groove. One end of the connecting shaft passes through the movable frame and is provided with a linkage component.

[0015] As a preferred embodiment of the surface defect detection device for enameled wire production described in this invention, the linkage component includes a rotating rod, with connecting rods slidably disposed at both ends of the rotating rod. One connecting rod is rotatably connected to a connecting shaft via a bearing, and the other connecting rod has a linkage block rotatably disposed at its end away from the rotating rod and fixedly connected to a sliding frame.

[0016] As a preferred embodiment of the surface defect detection device for enameled wire production described in this invention, a pressure relief pipe is provided on the outer periphery of the rotating rod, a movable piston is provided inside the pressure relief pipe, and one end of the pressure relief pipe is connected to the inner cavity of the rotating rod through a conduit.

[0017] As a preferred embodiment of the surface defect detection device for enameled wire production described in this invention, the vibration damping component includes a support spring disposed at the bottom of the sliding frame, a connecting conduit disposed inside the support spring, an oil pipe sleeved at the bottom end of the connecting conduit, the oil pipe being fixedly connected to the fixed frame, and a guide hole being provided at the center of the bottom of the connecting conduit.

[0018] The beneficial effects of this invention are as follows: by using the vibration damping frame and vibration damping components to attenuate harmful high-frequency vibrations and stabilize the wire, the low-frequency floating of the wire is transformed into a power source to drive the mirror to swing. During the swing, the angle and distance between the mirror panel and the defect on the surface of the enameled wire change in real time, resulting in a significant difference in the brightness and direction of the reflected light at the defect compared to the normal area. This forms a characteristic "dynamic trailing shadow" in the camera image. The detection cameras above and below continuously capture images. By analyzing these unique dynamic optical features in the image sequence, the surface defects can be accurately located and identified. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a device for detecting surface defects in enameled wire used in enameled wire production.

[0021] Figure 2 This is a schematic diagram of the mounting frame of an enameled wire surface defect detection device used in enameled wire production.

[0022] Figure 3 This is a schematic diagram of the detection frame of an enameled wire surface defect detection device used in enameled wire production.

[0023] Figure 4 This is a schematic diagram of the structure of the four movable frames of the surface defect detection device for enameled wire production.

[0024] Figure 5 This is a schematic diagram of the transmission component of an enameled wire surface defect detection device used in enameled wire production.

[0025] Figure 6 This is a schematic diagram of the linkage component of an enameled wire surface defect detection device used in enameled wire production.

[0026] Figure 7 This is a schematic diagram of the vibration damping frame of an enameled wire surface defect detection device used in enameled wire production.

[0027] Figure 8 This is a schematic diagram of the vibration damping component of an enameled wire surface defect detection device used in enameled wire production.

[0028] In the diagram: 1. Frame; 2. Straightening machine; 3. Mounting frame; 4. Fixed guide rail; 5. Transmission assembly; 51. Sliding block; 52. Connecting sleeve; 53. Threaded shaft; 531. Handwheel; 532. Pin hole; 533. Insert shaft; 534. Pressure plate; 535. Locking groove; 54. Conical sleeve; 55. Rubber sleeve; 6. Detection frame; 7. Supplementary light plate; 8. Detection camera; 9. Movable frame; 91. Insert plate; 92. Vertical guide rail; 93. Rotating groove; 10. Mirror panel; 1. Connecting shaft; 102. Linkage assembly; 1021. Rotating rod; 1022. Connecting rod; 1023. Linking block; 1024. Pressure relief pipe; 11. Transmission gap; 12. Vibration damping frame; 121. Fixed frame; 122. Sliding frame; 123. Bottom guide wheel; 124. Upper guide wheel; 1241. Guide wheel shaft; 1242. Sliding block; 125. Vibration damping assembly; 1251. Support spring; 1252. Connecting conduit; 1253. Oil pipe; 1254. Guide hole. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, referring to Figures 1-8This is the first embodiment of the present invention, which provides a device for detecting surface defects in enameled wire used in enameled wire production. The device includes a transmission component 5, a detection frame 6, a movable frame 9, a mirror panel 10, and a vibration damping frame 12. In use, the enameled wire is passed through the vibration damping frame 12 on one side via the transmission component 5, then through the transmission gap 11 formed at the center of the four movable frames 9, and then through the vibration damping frame 12 on the other side. Defects on the surface of the enameled wire, such as cracks, dents, and bulges, will cast shadows under the illumination of the supplementary light panel 7 inside the detection frame 6. The vibration damping frame 12 is used to release the vibration generated by the enameled wire during transmission. During this process, the vibration damping frame 12 floats up and down, and the mirror panel 10 on the side of the movable frame 9 is continuously adjusted by the linkage component 102. As the angle of the mirror panel 10 changes, the light reflected from the defect point will change differently from that of the normal area, allowing the device to easily determine the location of the defect.

[0033] Specifically, the frame 1 has a straightening machine 2 installed on one side of its top end, which is used to straighten the conveyed enameled wire. As a front-end process equipment, the straightening machine 2 can apply appropriate tension to the fed enameled wire and perform physical straightening to eliminate the bending and looseness of the wire, ensuring that the enameled wire enters the subsequent inspection area in a straight and stable state. This is existing technology, which is clearly known to those skilled in the art, and will not be described in detail here.

[0034] Specifically, the mounting frame 3 is fixedly set at the top of the frame 1. Fixed guide rails 4 are provided on both sides inside the mounting frame 3. The mounting frame 3 is fixed to the top of the frame 1 by bolts and serves as the main frame of the detection area. The fixed guide rails 4 are respectively installed at both ends inside the mounting frame 3 by bolts.

[0035] Specifically, there are two sets of transmission components 5, which are respectively installed inside the two fixed guide rails 4 to guide the enameled wire. After the enameled wire is drawn out from the straightening machine 2, it passes through the channel formed between the two sets of transmission components 5 in sequence. The transmission components 5 can passively slide along with the conveying of the enameled wire.

[0036] Specifically, the detection frame 6 is located at the center of the mounting frame 3. Each of the four corners of the detection frame 6 is equipped with a supplementary lighting plate 7 to ensure that light shines evenly from all sides towards the center. These supplementary lights are fixed in place. Detection cameras 8 are located at the top and bottom of the detection frame 6, respectively, to detect defects on the surface of the enameled wire. The detection frame 6 contains two sets of movable frames 9, each containing two movable frames 9. The two sets of movable frames 9 face opposite directions and are used to shield the upper and lower halves of the enameled wire, respectively. Figure 4 The distribution diagram of the four activity boxes 9 is shown.

[0037] Each of the four movable frames 9 has an inclined surface on one side, and each inclined surface has a mirror panel 10. A diamond-shaped transmission gap 11 is formed between the four inclined surfaces. Figure 4 As shown, the enameled wire to be inspected can pass through the transmission gap 11. The light emitted by the supplementary light plate 7 illuminates the surface of the enameled wire, achieving multi-angle illumination of the wire's circumference. When there are defects on the surface of the enameled wire, such as cracks, dents, or bulges, the morphology at that location will change the reflection and scattering characteristics of the light, and reflect it onto the mirror plate 10. This allows the camera to inspect most of the circumferential area of ​​the enameled wire through the reflection of the mirror plate 10, effectively improving the inspection accuracy and avoiding blind spots in the inspection of the circumferential side of the enameled wire.

[0038] Specifically, the vibration damping frame 12 has two sets, which are fixedly installed at both ends of the detection frame 6. It includes a fixed frame 121 fixedly connected to the detection frame 6, a sliding frame 122 slidably installed inside the fixed frame 121, and the sliding frame 122 is embedded in the fixed frame 121 through a linear bearing or slider structure and can slide relative to it in the vertical direction. A bottom guide wheel 123 is fixedly installed at the bottom of the sliding frame 122, and an upper guide wheel 124 is slidably installed inside the sliding frame 122 and at the top of the bottom guide wheel 123. A vibration damping component 125 is installed at the bottom of the sliding frame 122.

[0039] The vibration damping component 125 is connected between the bottom of the sliding frame 122 and the fixed frame 121 to eliminate bottom jitter of the enameled wire during transmission. After the enameled wire comes out from the transmission component 5 on one side, it first passes through the clamping channel formed by the bottom guide wheel 123 and the upper guide wheel 124 of the vibration damping frame 12 on one side, and then enters the detection frame 6. After detection, it comes out from the vibration damping frame 12 on the other side. During transmission, the enameled wire generates longitudinal jitter or tension fluctuation, which forces the sliding frame 122 and its internal guide wheel to move vertically. The vibration damping component 125 absorbs and attenuates this vibration energy through its elastic deformation and damping characteristics, preventing the jitter frequency from gradually increasing and converting the irregular jitter of the enameled wire into the up and down sliding of the vibration damping component 125.

[0040] Example 2, refer to Figures 2-8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0041] Specifically, the transmission component 5 includes two sliding blocks 51 slidably disposed on both sides inside the fixed guide rail 4. A connecting sleeve 52 is rotatably disposed inside the sliding block 51. A threaded shaft 53 is threadedly connected inside the connecting sleeve 52. A tapered sleeve 54 is disposed at the bottom end of the threaded shaft 53. A rubber sleeve 55 is fitted on the outer periphery of the tapered sleeve 54. The two sliding blocks 51 can slide towards each other or away from each other inside the fixed guide rail 4 to adjust the distance between them. Rotating the threaded shaft 53 allows the tapered sleeve 54 to move along the axial direction of the connecting sleeve 52, so that the two tapered sleeves 54 move closer or further away from each other, and the distance between the outer periphery of the two rubber sleeves 55 changes to accommodate enameled wires of different thicknesses. Several irregular protrusions are provided on the outer periphery of the rubber sleeve 55.

[0042] By setting the boss, the enameled wire can be jittered during frequent transmission. The jitter of the enameled wire forces the sliding frame 122 inside the vibration damping frame 12 to slide up and down, and together with the vibration damping component 125, they form a slow movement. Therefore, the angle and distance between the mirror panel 10 and the surface of the enameled wire can be continuously changed. After the distance and angle between the enameled wire surface and the mirror panel 10 are frequently changed, the brightness change pattern of the defect point will be different from that of the normal area, which makes it easier for the equipment to determine the location of the defect. Under the camera's shooting, a large ghost image can be formed, which is obviously different from the normal part. Therefore, the detection efficiency and the accuracy of the defect location can be greatly improved.

[0043] Furthermore, the two transmission components 5 are symmetrically arranged, and the enameled wire to be tested passes through the channel between the rubber sleeves 55. By adjusting the distance between the two sliding blocks 51 and the downward pressure of the two threaded shafts 53, the two rubber sleeves 55 can slightly clamp the enameled wire, providing stable guidance and allowing the enameled wire to pass smoothly under traction.

[0044] Specifically, a handwheel 531 is provided at the top of the threaded shaft 53. A pin hole 532 is provided inside the handwheel 531. An insert shaft 533 is slidably arranged inside the pin hole 532. A pressure plate 534 is provided at the bottom of the insert shaft 533. A locking groove 535 that cooperates with the pressure plate 534 is provided at the corresponding position of the connecting sleeve 52. The insert shaft 533 can slide up and down in the pin hole 532 of the handwheel 531. When the handwheel 531 is rotated to drive the threaded shaft 53 to rotate to the appropriate position, that is, after the rubber sleeve 55 reaches the predetermined clamping force on the enameled wire, the insert shaft 533 is pressed down, so that the pressure plate 534 at the bottom of its end is embedded in the locking groove 535 at the top of the connecting sleeve 52. At this time, the handwheel 531, the insert shaft 533 and the connecting sleeve 52 are locked and cannot rotate relative to each other.

[0045] Specifically, a baffle is threaded to the bottom of the conical sleeve 54. The baffle is screwed onto the bottom of the conical sleeve 54 by the thread, which axially presses and fixes the lower edge of the rubber sleeve 55 to prevent it from falling off the conical sleeve 54.

[0046] Specifically, a guide wheel shaft 1241 is provided at the center of the upper guide wheel 124, and sliding blocks 1242 are provided at both ends of the guide wheel shaft 1241. The two sliding blocks 1242 are respectively slidably disposed inside the slide rails on both sides of the sliding frame 122. The upper guide wheel 124 is suspended on the vertical slide rail of the sliding frame 122 through the guide wheel shaft 1241 and the sliding blocks 1242 at both ends, so that it can move in the vertical direction. An adjusting screw is threadedly connected to the inside of one of the sliding blocks 1242. The bottom end of the adjusting screw is rotatably connected to the sliding frame 122 and is used to adjust the distance between the upper guide wheel 124 and the bottom guide wheel 123. The enameled wire passes between the bottom guide wheel 123 and the upper guide wheel 124. By rotating the adjusting screw, the upper guide wheel 124 is slightly pressed against the upper surface of the enameled wire to cooperate with the bottom guide wheel 123 to guide the enameled wire.

[0047] Specifically, a plate 91 is slidably provided at one end of the movable frame 9 facing the inner wall of the detection frame 6, and a vertical guide rail 92 is provided at the other end of the plate 91. The vertical guide rail 92 is fixedly connected to the inner wall of the detection frame 6. A rotating groove 93 for installing the mirror panel 10 is opened on the inclined side of the movable frame 9. The movable frame 9 is slidably connected to the vertical guide rail 92 fixed to the inner wall of the detection frame 6 through the plate 91 on its back, so that the entire movable frame 9 can move along a direction perpendicular to the transmission direction of the enameled wire, which is used to adjust the size of the transmission gap 11 formed between the four movable frames 9 to adapt to enameled wires of different diameters. The rotating groove 93 is used to accommodate the mirror panel 10.

[0048] Specifically, the mirror panel 10 is provided with connecting shafts 101 at both ends. The connecting shafts 101 are inserted into the groove walls at both ends of the rotating groove 93, so that the mirror panel 10 is rotatably installed inside the rotating groove 93. One end of the connecting shaft 101 passes through the movable frame 9 and is provided with a linkage component 102. The mirror panel 10 is rotatably supported in the rotating groove 93 of the movable frame 9 by the connecting shafts 101 at both ends. One of the connecting shafts 101 extends outward to connect to the linkage component 102, thereby receiving a drive so that the mirror panel 10 can swing back and forth within a certain angle range around its axis.

[0049] Specifically, the linkage component 102 includes a rotating rod 1021, with connecting rods 1022 slidably disposed at both ends of the rotating rod 1021. One of the connecting rods 1022 is rotatably connected to the connecting shaft 101 via a bearing, and the other connecting rod 1022 has a linkage block 1023 rotatably disposed at the end away from the rotating rod 1021, which is fixedly connected to the sliding frame 122. The linkage component 102 constitutes a spatial linkage mechanism that converts the vertical movement of the vibration damping frame 12 into the rotation of the mirror panel 10.

[0050] When the enameled wire vibrates, causing the sliding frame 122 to float up and down, the connecting block 1023 fixed on it moves up and down accordingly. Through the connecting rod 1022, it pushes or pulls the rotating rod 1021. The rotating rod 1021 then transmits the motion to another connecting rod 1022 connected to the connecting shaft 101 of the mirror panel 10, ultimately driving the mirror panel 10 to swing back and forth around the shaft. By controlling the vibration of the enameled wire and the swing of the mirror panel 10, the light is modulated, thereby further highlighting some defect information that is difficult to distinguish under static lighting, thus improving the detection accuracy.

[0051] Specifically, a pressure relief pipe 1024 is provided on the outer periphery of the rotating rod 1021. A movable piston is provided inside the pressure relief pipe 1024. One end of the pressure relief pipe 1024 is connected to the inner cavity of the rotating rod 1021 through a conduit. The rotating rod 1021 may be filled with damping grease. When the linkage assembly 102 moves rapidly, it will drive the medium inside the rotating rod 1021 to flow or change pressure, which will be transmitted to the pressure relief pipe 1024 through the conduit, pushing the movable piston to overcome resistance and move. By increasing the damping, the mirror panel 10 is more stable when the angle deflection is increased.

[0052] Specifically, the vibration damping assembly 125 includes a support spring 1251 disposed at the bottom of the sliding frame 122. A connecting conduit 1252 is disposed inside the support spring 1251. An oil pipe 1253 is fitted onto the bottom end of the connecting conduit 1252 and is fixedly connected to the fixed frame 121. A guide hole 1254 is provided at the center of the bottom of the connecting conduit 1252. The upper end of the support spring 1251 abuts against the sliding frame 122, and the lower end is connected to the fixed frame 121. The lower end of the connecting conduit 1252 is inserted into the... In the damping oil pipe 1253, the guide hole 1254 at the bottom serves as a channel for oil flow. When the enameled wire vibrates, forcing the sliding frame 122 to move downward, it compresses the support spring 1251 and pushes the connecting conduit 1252 into the oil pipe 1253. The oil is squeezed out from the inside of the connecting conduit 1252 through the guide hole 1254, generating damping force. The damping is used to control the speed of the sliding frame 122 moving up and down, preventing the enameled wire from vibrating too quickly. When the sliding frame 122 returns to its original position, the process is reversed.

[0053] During use, manually adjust the spacing of the sliding blocks 51 in the two transmission components 5 and the pressing depth of the threaded shaft 53 so that the two rubber sleeves 55 can slightly clamp and guide the wire. Then, lock the handwheel 531 through the insert shaft 533 and simultaneously adjust the position of the four movable frames 9 in the detection frame 6. Slide the insert plate 91 on the vertical guide rail 92 so that the diamond-shaped transmission gap 11 formed by their centers is greater than the diameter of the enameled wire. Rotate the adjusting screw in the vibration damping frame 12 to adjust the height of the upper guide wheel 124 so that it cooperates with the bottom guide wheel 123 to properly clamp the enameled wire. During the transmission process, the irregularity of the surface of the enameled wire will interact with the boss on the rubber sleeve 55 of the transmission component 5. Active vibration is generated when the enameled wire is pushed up by the boss and slides down along the boss.

[0054] This vibration is transmitted to the vibration damping frame 12, forcing the sliding frame 122 and the guide wheel to float up and down. This floating is absorbed and modulated by the vibration damping component 125 and converted into a slow reciprocating motion. The up and down motion of the sliding frame 122 is converted into the reciprocating swing of the mirror panel 10 around the axis through the linkage component 102. During the swing, the angle and distance between the mirror panel 10 and the surface defect of the enameled wire change in real time, causing the brightness and direction of the reflected light at the defect to change significantly differently from the normal area, forming a characteristic "dynamic trailing shadow" in the camera image. The detection cameras 8 above and below continuously capture images. By analyzing these unique dynamic optical features in the image sequence, the surface defect can be accurately located and identified.

[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for detecting surface defects in enameled wire used in enameled wire production, characterized in that: include, The frame (1) has a straightening machine (2) on one side of its top end, which is used to straighten the transmission enameled wire; The mounting frame (3) is fixedly set at the top of the frame (1), and the mounting frame (3) has fixed guide rails (4) on both sides inside. The transmission component (5) is provided in two sets, which are respectively set inside the two fixed guide rails (4) for guiding the enameled wire; The detection frame (6) is located at the center of the mounting frame (3). The four corners of the detection frame (6) are equipped with supplementary light plates (7). The detection frame (6) is equipped with a detection camera (8) for detecting defects on the surface of the enameled wire. The detection frame (6) is equipped with two sets of movable frames (9). Each set of movable frames (9) contains two slidingly connected movable frames (9). The two sets of movable frames (9) are oriented in opposite directions. The opposite side of the four movable frames (9) is set with a slope. The slope is equipped with a mirror panel (10). A transmission gap (11) is formed between the four slopes. The enameled wire to be tested can pass through the transmission gap (11). The vibration damping frame (12) has two sets, which are fixedly installed at both ends of the detection frame (6). The frame includes a fixed frame (121) fixedly connected to the detection frame (6). A sliding frame (122) is slidably installed inside the fixed frame (121). A bottom guide wheel (123) is fixedly installed at the bottom of the sliding frame (122). An upper guide wheel (124) is slidably installed inside the sliding frame (122) and at the top of the bottom guide wheel (123). A vibration damping component (125) is installed at the bottom of the sliding frame (122).

2. The surface defect detection device for enameled wire production as described in claim 1, characterized in that: The transmission component (5) includes two sliding blocks (51) that are slidably disposed on both sides inside the fixed guide rail (4). A connecting sleeve (52) is rotatably disposed inside the sliding block (51). A threaded shaft (53) is threadedly connected inside the connecting sleeve (52). A tapered sleeve (54) is disposed at the bottom end of the threaded shaft (53). A rubber sleeve (55) is sleeved on the outer periphery of the tapered sleeve (54). Several irregular protrusions are disposed on the outer periphery of the rubber sleeve (55).

3. The surface defect detection device for enameled wire production as described in claim 2, characterized in that: The top of the threaded shaft (53) is provided with a handwheel (531), the inside of the handwheel (531) is provided with a pin hole (532), the inside of the pin hole (532) is provided with a sliding insert shaft (533), the bottom end of the insert shaft (533) is provided with a pressure plate (534), and the connecting sleeve (52) is provided with a locking groove (535) corresponding to the pressure plate (534) to cooperate with the pressure plate (534).

4. The surface defect detection device for enameled wire production as described in claim 3, characterized in that: The bottom end of the conical sleeve (54) is threaded with a baffle for fixing the rubber sleeve (55).

5. The surface defect detection device for enameled wire production as described in claim 4, characterized in that: The upper guide wheel (124) is provided with a guide wheel shaft (1241) at its center. Both ends of the guide wheel shaft (1241) are provided with sliding blocks (1242). The two sliding blocks (1242) are respectively slidably disposed inside the slide rails on both sides of the sliding frame (122).

6. The surface defect detection device for enameled wire production as described in claim 5, characterized in that: The movable frame (9) has a sliding plate (91) at one end facing the inner wall of the detection frame (6), and a vertical guide rail (92) at the other end of the plate (91). The vertical guide rail (92) is fixedly connected to the inner wall of the detection frame (6). The movable frame (9) has a rotating groove (93) on its inclined side for installing the mirror panel (10).

7. The enameled wire surface defect detection device for enameled wire production as described in claim 6, characterized in that: The mirror panel (10) is provided with connecting shafts (101) at both ends. The connecting shafts (101) are inserted into the groove walls at both ends of the rotating groove (93) to rotate the mirror panel (10) inside the rotating groove (93). One end of the connecting shaft (101) passes through the movable frame (9) and is provided with a linkage component (102).

8. The surface defect detection device for enameled wire production as described in claim 7, characterized in that: The linkage component (102) includes a rotating rod (1021), and connecting rods (1022) are slidably provided at both ends of the rotating rod (1021). One of the connecting rods (1022) is rotatably connected to the connecting shaft (101) through a bearing, and the other connecting rod (1022) has a linkage block (1023) rotatably provided at the end away from the rotating rod (1021) and fixedly connected to the sliding frame (122).

9. The surface defect detection device for enameled wire production as described in claim 8, characterized in that: A pressure relief pipe (1024) is provided on the outer periphery of the rotating rod (1021). A movable piston is provided inside the pressure relief pipe (1024). One end of the pressure relief pipe (1024) is connected to the inner cavity of the rotating rod (1021) through a conduit.

10. The surface defect detection device for enameled wire production as described in claim 9, characterized in that: The vibration damping component (125) includes a support spring (1251) disposed at the bottom of the sliding frame (122). A connecting conduit (1252) is disposed inside the support spring (1251). An oil pipe (1253) is sleeved at the bottom of the connecting conduit (1252). The oil pipe (1253) is fixedly connected to the fixed frame (121). A guide hole (1254) is opened at the bottom center of the connecting conduit (1252).

Images