Enameled flat wire on-line detection device

Abstract

The invention discloses an enameled flat wire on-line detection device, which relates to the technical field of enameled flat wire detection, has the advantages of identifying defects in real time, automatically finishing shearing and switching to a standby material receiving frame, and is characterized in that the enameled flat wire on-line detection device comprises a rack, and a material placing frame, a material receiving frame and a tensioning wheel set arranged between the material placing frame and the material receiving frame are arranged on the rack; a detection path of the enameled flat wire is formed among the discharging frame, the tensioning wheel set and the receiving frame, and a detection assembly for detecting defects of the enameled flat wire on the detection path is further arranged on the rack; the detection assembly comprises an image acquisition unit and a distance measurement unit which are arranged on the rack; the rack is also provided with a switching system for carrying out shearing, switching and coiling on the defective enameled flat wire; the switching system comprises a rotating rod, the middle position of the rotating rod is rotatably connected to the rack through a short shaft, and a servo motor for driving the rotating rod to rotate is fixed to the rack.

Description

Technical Field

[0001] This invention relates to the field of enameled flat wire production technology, specifically to an online testing device for enameled flat wire. Background Technology

[0002] Enamelled flat wire is an electromagnetic wire made by coating a rectangular cross-section copper or aluminum conductor with multiple layers of insulating enamel film. It is widely used in the coil windings of power equipment such as motors and transformers. During the production process, the insulation quality of the enamelled flat wire surface (such as defects such as black spots, pinholes, and eccentricity) must be inspected online to prevent wires with insulation defects from entering the subsequent winding process.

[0003] Currently, the common inspection method in the industry is to integrate inspection equipment (such as EDM machines, vision inspection systems, etc.) into the production line. When a defect is detected, the system issues an alarm, and the operator manually stops the machine, marks and cuts the defective location, removes the defective wire roll, replaces it with an empty roll, re-threads the wire, and restarts the production line.

[0004] However, this method relies on manual intervention, and the roll changing process is time-consuming, which reduces the overall efficiency. Secondly, manual cutting is difficult to control precisely, which can easily lead to uneven cuts, burrs, or damage to the conductor, causing secondary damage to the enamel insulation layer and creating new quality hazards. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the purpose of this invention is to provide an online inspection device for enameled flat wire, which has the advantages of real-time defect identification, automatic shearing, and switching to a standby receiving rack.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides an online inspection device for enameled flat wire, including a frame, on which a feeding rack, a receiving rack, and a tensioning wheel assembly disposed between the feeding rack and the receiving rack are provided. The feeding rack, the tensioning wheel assembly, and the receiving rack form an inspection path for the enameled flat wire. The frame is also provided with an inspection component for defect detection of the enameled flat wire on the inspection path. The detection component includes an image acquisition unit and a distance measurement unit mounted on a rack; The frame is also equipped with a switching system for cutting and rewinding defective enameled flat wire; The switching system includes a rotating rod, which is rotatably connected to the frame via a short shaft at its middle position. A servo motor that drives the rotating rod to rotate is fixed on the frame. There are two receiving racks, which are respectively located at both ends of the rotating rod and rotatably connected to the rotating rod. A support plate is provided on the front side of the rotating rod. The support plate is located between the two receiving racks and is fixedly connected to the frame through a mounting bracket. The switching system also includes a shearing component for cutting the enameled flat wire between the two receiving racks; The switching system also includes a pressing component that presses the enameled flat wire between the two receiving racks against a support plate to facilitate cutting.

[0007] By adopting the above technical solution and setting up detection components and switching systems, defects can be identified in real time while the enameled flat wire is running continuously without stopping the machine. The wire can then be automatically cut and switched to a standby receiving rack without manual intervention, thus improving production efficiency and automation level.

[0008] By rotating the rotating rod 180 degrees driven by a servo motor, the take-up rack with qualified wire is moved out of the working position, while an empty spare take-up rack is accurately sent into the working position, realizing the switching of the take-up station and shortening the process interruption time. In addition, the pressing component stably presses the enameled flat wire to be cut onto the support plate, avoiding vibration or displacement of the enameled flat wire at the moment of cutting, so that the cut of the enameled flat wire is flat and vertical, reducing the risk of burrs or flattening deformation of the cut, and protecting the integrity of the paint film.

[0009] Preferably, the shearing assembly includes a follower frame with an n-shaped cross-section. Two ear seats are fixed to the rear side of the follower frame, spaced apart from each other. Each ear seat contains two oppositely arranged blade handles, each extending outwards from the front of the ear seat and forming a cutting edge. Two movable blocks are correspondingly fitted onto the outside of the follower frame. These movable blocks slide with the ear seats and can slide back and forth along the ear seats. Each movable block has an elongated groove extending in the front-back direction. A slider is slidably connected within the groove, extending out of the groove and fixed to the outer wall of the follower frame. An arc-shaped groove is formed on each blade handle. A connecting rod adapted to the arc-shaped groove is fixed within the groove, extending into the corresponding arc-shaped groove. The movable blocks are connected to the follower frame via springs.

[0010] Preferably, the follower frame has horizontal guide rods fixed on both its left and right sides, and a vertical support is fixed on the mounting frame. The support has a guide hole through which the guide rod passes. The guide rod is slidably connected to the guide hole. A stop block is fixed on the guide rod. The follower frame is located behind the support, and the stop block is located in front of the support. The two movable blocks are fixedly connected by a connecting plate. A swing rod is hinged to the connecting plate. The support has a movable hole through which the swing rod passes. The mounting frame is equipped with a control component to control the reciprocating motion of the connecting plate.

[0011] Preferably, the control component includes a gear rotatably connected to the mounting bracket; a first rack and a second rack meshing with the gear are respectively provided on both sides of the gear, and the first rack and the second rack are slidably mounted on the mounting bracket via a slide rail structure, with their sliding directions parallel and their movement directions opposite; the end of the swing arm away from the connecting plate is hinged to the first rack; a strip plate is fixedly provided on the second rack, and a strip hole is provided on the strip plate; a moving block is slidably connected in the strip hole, and the top of the moving block extends upward from the strip plate; a swing arm is hingedly connected to the end of the moving block extending from the strip plate; an L-shaped mounting plate is fixed on the mounting bracket, and the L-shaped mounting plate is rotatably connected to the swing arm, and a motor for driving the swing arm to rotate is fixed on the L-shaped mounting plate.

[0012] Preferably, the pressing assembly includes a pressing plate, the rear end of which is bent toward the support plate; the front end of the pressing plate has an elongated hole, and a limiting plate is provided on both the left and right sides of the pressing plate; each of the limiting plates has a laterally extending strip-shaped guide groove, and a long rod is inserted through the elongated hole, with both ends of the long rod extending out of the elongated hole and slidingly inserted into the corresponding strip-shaped guide groove; a movable cavity is provided through the support, and the top of the limiting plate is fixed to the upper wall of the movable cavity; a transmission rod is fixedly connected to one end of the long rod that extends out of the limiting plate, and the front end of the transmission rod is fixedly connected to the second rack.

[0013] Preferably, the rear end of each pressing plate is covered with a rubber sleeve.

[0014] Preferably, the rubber sheath is made of polyurethane material with a thickness of 5-10 mm. Preferably, the rubber sheath has a wedge-shaped longitudinal section, and the rubber sheath has a fixed bottom surface that is bonded to the pressing plate, a pressing surface for contacting the enameled flat wire, and an inclined guide surface connecting the fixed bottom surface and the pressing surface. The front end of the pressing surface is provided with a rounded corner.

[0015] Preferably, the receiving rack includes a receiving roller shaft and side plates located at both ends of the receiving roller shaft; the receiving roller shaft is provided with a fixing component for winding the sheared enameled flat wire around the receiving rack.

[0016] Preferably, the fixing assembly includes a connecting column fixed to the outside of the side plate; the connecting column has at least one axially extending guide groove circumferentially on its shaft; a clamping rod is slidably connected in the guide groove, the clamping rod extends out of the guide groove, and its length direction is parallel to the axis of the take-up roller shaft; a cylinder is fixed to the end of the connecting column, the extended end of the cylinder is connected to the clamping rod, and a through hole is provided on the side plate for the clamping rod to pass through and extend to the outside of the take-up roller shaft.

[0017] The beneficial effects of this invention are as follows: By setting up detection components and a switching system, defects can be identified in real time while the enameled flat wire is running continuously without stopping the machine. The cutting is then automatically completed and the wire is switched to a standby take-up rack without manual intervention, which improves production efficiency and automation level. By rotating the rotating rod 180 degrees driven by a servo motor, the take-up rack with qualified wire is moved out of the working position, while the empty standby take-up rack is accurately sent into the working position, realizing the switching of the winding station and shortening the process interruption time. In addition, the pressing component stably presses the enameled flat wire to be cut onto the support plate, avoiding vibration or displacement of the enameled flat wire at the moment of cutting, so that the cut of the enameled flat wire is flat and vertical, reducing the risk of burrs or flattening deformation of the cut and protecting the integrity of the paint film. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a schematic diagram illustrating the structure of the support plate in this embodiment; Figure 3 This is a schematic diagram illustrating the structure of the movable hole in this embodiment; Figure 4 This is a schematic diagram illustrating the structure of the gear in this embodiment; Figure 5 This is a schematic diagram illustrating the structure of the stop block in this embodiment; Figure 6 This is a schematic diagram illustrating the structure of the arc-shaped groove in this embodiment; Figure 7 This is a structural schematic diagram illustrating the long rod in this embodiment.

[0020] Explanation of reference numerals in the attached figures: In the diagram: 1. Frame; 2. Feeding rack; 3. Receiving rack; 4. Tensioning wheel assembly; 5. Enamelled flat wire; 6. Rotating rod; 7. Support plate; 8. Mounting frame; 9. Follower frame; 10. Ear seat; 11. Tool holder; 12. Blade; 13. Movable block; 14. Long strip groove; 15. Sliding block; 16. Arc-shaped groove; 17. Connecting rod; 18. Guide rod; 19. Support; 20. Stop block; 21. Connection 21. Plate; 22. Swing rod; 23. Movable hole; 24. Gear; 25. First rack; 26. Second rack; 27. Strip plate; 28. Strip hole; 29. ​​Moving block; 30. Swing arm; 31. L-shaped mounting plate; 32. Pressing plate; 33. Oblong hole; 34. Limiting plate; 35. Strip guide groove; 36. Long rod; 37. Movable cavity; 38. Transmission rod; 39. Take-up roller shaft; 40. Side plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] An online inspection device for enameled flat wire, such as Figures 1-7 The system includes a frame 1, on which a feeding rack 2, a receiving rack 3, and a tensioning wheel assembly 4 located between the feeding rack 2 and the receiving rack 3 are provided. The feeding rack 2, the tensioning wheel assembly 4, and the receiving rack 3 form a detection path for the enameled flat wire 5. The frame 1 is also equipped with a detection component for detecting defects in the enameled flat wire 5 on the detection path. The detection components include an image acquisition unit and a distance measurement unit mounted on rack 1; The frame 1 is also equipped with a switching system for cutting and rewinding defective enameled flat wires 5; The switching system includes a rotating rod 6, which is rotatably connected to the frame 1 via a short shaft at its middle position. A servo motor that drives the rotating rod 6 to rotate is fixed on the frame 1. There are two receiving racks 3, which are respectively located at both ends of the rotating rod 6 and rotatably connected to the rotating rod 6; A support plate 7 is provided on the front side of the rotating rod 6. The support plate 7 is located between the two receiving racks 3 and is fixedly connected to the frame 1 through a mounting bracket 8. The switching system also includes a shearing assembly for cutting the enameled flat wire 5 between the two receiving racks 3; The switching system also includes a pressing component that presses the enameled flat wire 5 between the two receiving racks 3 onto the support plate 7 to facilitate cutting.

[0023] In the above design, by setting up detection components and switching systems, defects can be identified in real time while the enameled flat wire 5 is running continuously without stopping the machine. The wire is then automatically cut and switched to the standby receiving rack 3 without manual intervention, which improves production efficiency and automation level.

[0024] By rotating the rotating rod 6 180 degrees driven by the servo motor, the take-up rack 3 with qualified wire is moved out of the working position, and the empty spare take-up rack 3 is accurately sent into the working position, realizing the switching of the winding station, shortening the process interruption time. In addition, the pressing component stably presses the enameled flat wire 5 to be cut onto the support plate 7, avoiding vibration or displacement of the enameled flat wire 5 at the moment of cutting, so that the cut of the enameled flat wire 5 is flat and vertical, reducing the risk of burrs or flattening deformation of the cut, and protecting the integrity of the paint film.

[0025] like Figure 3 and Figure 4 and Figure 5 and Figure 6 The shearing assembly includes a follower frame 9 with an n-shaped cross-section. Two ear seats 10, spaced apart laterally, are fixed to the rear side of the follower frame 9. Each ear seat 10 contains two opposing blade handles 11 rotatably connected to it. Each blade handle 11 extends outward from the front of the ear seat 10 and forms a blade 12. Two movable blocks 13 are correspondingly fitted outside the follower frame 9. The movable blocks 13 slide with the ear seats 10 and can slide back and forth along the ear seats 10. Each movable block 13 has a branch extending in the back-to-back direction. The long, narrow groove 14 has a slider 15 that slides through it. The slider 15 extends out of the groove and is fixed to the outer wall of the follower frame 9. An arc-shaped groove 16 is provided on the handle 11. A connecting rod 17 that matches the arc-shaped groove 16 is fixed in the groove. The connecting rod 17 extends into the corresponding arc-shaped groove 16. The movable block 13 is connected to the follower frame 9 by a spring. A guide rod is also fixed on the movable block 13. A cylindrical groove that matches the guide rod passes through the follower frame 9.

[0026] like Figure 3 and Figure 4 and Figure 5 and Figure 6 The follower frame 9 has horizontal guide rods 18 fixed on both sides. A vertical support 19 is fixed on the mounting frame 8. The support 19 has a guide hole through which the guide rod 18 passes. The guide rod 18 is slidably connected to the guide hole. A stop block 20 is fixed on the guide rod 18. The follower frame 9 is located behind the support 19, and the stop block 20 is located in front of the support 19. Two movable blocks 13 are fixedly connected by a connecting plate 21. A swing rod 22 is hinged to the connecting plate 21. A movable hole 23 through which the swing rod 22 passes is located in the middle of the support 19. The mounting frame 8 is equipped with a control component to control the reciprocating motion of the connecting plate 21.

[0027] In the above design, when the control component drives the swing arm 22 to move backward, the swing arm 22 sequentially drives the connecting plate 21, the movable block 13, the follower frame 9, and the guide rod 18 to move backward as a whole until the stop block 20 abuts against the front side of the support 19. At this time, the two adjacent cutting edges 12 are located on the left and right sides of the enameled flat wire 5, respectively. The swing arm 22 continues to move backward, the movable block 13 compresses the spring and continues to move backward. During this process, guided by the slider 15 and the slide groove, the movable block 13 drives the connecting rod 17 to move in the arc-shaped groove 16 of the handle 11, thereby pushing the two handles 11 to rotate relative to each other around their respective axes, driving the two cutting edges 12 to close together, and completing the shearing of a section of enameled flat wire 5 located therebetween.

[0028] like Figure 3 and Figure 4 and Figure 5 and Figure 6 The control component includes a gear 24, which is rotatably connected to the mounting bracket 8. A first rack 25 and a second rack 26 mesh with the gear 24 on both sides. Both racks 25 and 26 are slidably mounted on the mounting bracket 8 via a slide rail structure, with parallel sliding directions and opposite movement directions. The end of a rocker arm 22 away from the connecting plate 21 is hinged to the first rack 25. A strip plate 27 is fixedly mounted on the second rack 26, and a strip hole 28 is formed in the strip plate 27. A movable block 29 is slidably connected within the strip hole 28, and the top of the movable block 29 extends upward beyond the strip plate 27. A rocker arm 30 is hinged to the end of the movable block 29 extending beyond the strip plate 27. An L-shaped mounting plate 31 is fixedly mounted on the mounting bracket 8, rotatably connected to the rocker arm 30. A motor for driving the rocker arm 30 to rotate is fixed on the L-shaped mounting plate 31. When the motor drives the swing arm 30 to rotate, the moving block 29 moves in a circular motion and, under the constraint of the strip hole 28, drives the strip plate 27 and the second rack 26 to move in a reciprocating linear motion along its slide rail.

[0029] like Figure 3 and Figure 4 and Figure 5 and Figure 6 and Figure 7 The pressing assembly includes a pressing plate 32, the rear end of which is bent toward the support plate 7; an elongated hole 33 is passed through the front end of the pressing plate 32, and a limiting plate 34 is provided on both the left and right sides of the pressing plate 32; each limiting plate 34 has a horizontally extending strip-shaped guide groove 35, and a long rod 36 is inserted into the elongated hole 33, with both ends of the long rod 36 extending out of the elongated hole 33 and slidingly inserted into the corresponding strip-shaped guide groove 35; a movable cavity 37 is passed through the support 19, and the top of the limiting plate 34 is fixed to the upper cavity wall of the movable cavity 37; a transmission rod 38 is fixedly connected to one end of the long rod 36 that extends out of the limiting plate 34, and the front end of the transmission rod 38 is fixedly connected to the second rack 26.

[0030] In the above design, when the second rack 26 moves forward, it pushes the long rod 36 to slide forward along the strip guide groove 35 through the transmission rod 38. At the same time, under the constraint of the elongated hole 33, the long rod 36 drives the pressing plate 32 to rotate around the connection part between it and the wall of the movable cavity 37, so that the bent end of the pressing plate 32 presses the enameled flat wire 5 on the support plate 7.

[0031] Both the support plate 7 and the rear end of the pressing plate 32 are covered with rubber sleeves. These sleeves buffer the impact force during pressing, protect the insulation layer of the enameled flat wire 5, prevent secondary damage, and enhance clamping stability, ensuring cutting and detection accuracy. The pressing plate 32 cuts and presses onto the enameled flat wire 5 before the blade 12, but the second rack 26 continues to move forward, and the pressing plate 32 continues to rotate. The rubber sleeve is deformed by pressure, but it does not damage the enameled flat wire 5.

[0032] The rubber sheath covering the pressing plate 32 is made of polyurethane material with a thickness of 5-10mm.

[0033] The rubber sheath covering the pressing plate 32 has a wedge-shaped longitudinal section. The rubber sheath has a fixed bottom surface that is bonded to the pressing plate 32, a pressing surface for contacting the enameled flat wire 5, and an inclined guide surface that connects the fixed bottom surface and the pressing surface. The front end of the pressing surface is provided with a rounded corner.

[0034] When the pressing plate 32 rotates and presses down, the rounded corner first contacts the enameled flat wire 5. As the pressing stroke continues, the inclined guide surface guides the rubber sleeve to undergo elastic deformation, so that its pressing surface and part of the guide surface adaptively fit and wrap the surface of the enameled flat wire 5, thereby achieving a continuous increase in contact area and uniform distribution of pressure.

[0035] The receiving rack 3 includes a receiving roller shaft 39 and side plates 40 located at both ends of the receiving roller shaft; the receiving roller shaft 39 is provided with a fixing component that allows the sheared enameled flat wire 5 to be wrapped around the outside of the receiving rack 3.

[0036] The fixing assembly includes a connecting post fixed to the outside of the side plate 40; the connecting post has at least one axially extending guide groove circumferentially on its shaft; a clamping rod is slidably connected in the guide groove, the clamping rod extends out of the guide groove, and its length direction is parallel to the axis of the take-up roller shaft 39; a cylinder is fixed at the end of the connecting post, the extended end of the cylinder is connected to the clamping rod, and a through hole is opened on the side plate 40 for the clamping rod to pass through and extend to the outside of the take-up roller shaft 39.

[0037] The detection assembly includes an image acquisition unit and a distance measurement unit mounted on the rack 1. The image acquisition unit can be a camera, and the distance measurement unit can be a distance sensor. The image acquisition unit is used to acquire image information of the surface of the enameled flat wire, and the distance measurement unit is used to non-contactly measure the thickness of the enameled flat wire or the eccentricity of the insulation layer.

[0038] In use, the enameled flat wire 5 on the feeding rack 2 is tensioned by the tensioning wheel group 4 and wrapped around the receiving rack 3 at the working position. During the continuous movement of the enameled flat wire 5, the surface of the enameled flat wire 5 is detected by the image acquisition unit and the distance measurement unit to identify whether the wire has black spots, scratches, insulation eccentricity defects. When a defect is detected, the switching system will be started by accurately calculating based on the moving speed of the enameled flat wire 5. The servo motor provides power to drive the rotating rod 6 to rotate 180°, so that the take-up rack 3 with qualified wires is moved out of the working position. At the same time, the empty spare take-up rack 3 is accurately sent into the working position. At this time, the defective section of the enameled flat wire 5 has been located and transported between the two take-up racks 3, and is located directly above the support plate 7. At the same time, the control motor that controls the rotation of the take-up rack 3 is turned off. There are two control motors fixed on the rotating rod 6 that drive the rotation of the corresponding take-up rack 3 respectively. Then the motor is turned on, and the motor provides power to drive the swing arm 30, which is fixed to the motor output shaft, to rotate. The rotation of the swing arm 30 will drive the moving block 29, which is rotatably connected to the swing arm 30, to make a circular motion. Under the constraint of the strip hole 28, the strip plate 27 and the second rack 26 will make a reciprocating linear motion along its slide rail. When the second rack 26 moves forward, it pushes the long rod 36 to slide forward along the strip guide groove 35 through the transmission rod 38. At the same time, under the constraint of the elongated hole 33, the long rod 36 drives the pressing plate 32 to rotate downward around the connection part with the wall of the movable cavity 37, so that the bent end of the pressing plate 32 presses the enameled flat wire 5 on the support plate 7. When the pressing plate 32 rotates and presses down, the rounded corner first contacts the enameled flat wire 5. As the downward stroke continues, its wedge structure undergoes elastic deformation. The pressing surface and the guide surface adaptively fit and wrap the wire surface to achieve stable clamping without damage. At the same time, the first rack 25 moves backward and sequentially drives the connecting plate 21, follower frame 9 and guide rod 18 to move backward as a whole through the swing rod 22 until the stop block 20 abuts against the front side of the support 19. At this time, the two adjacent cutting edges 12 are located on the left and right sides of the enameled flat wire 5 respectively. The first rack 25 continues to move backward, the movable block 13 compresses the spring and continues to move backward. During this process, through the guide of the slider 15 and the slide groove, the movable block 13 drives the connecting rod 17 to move in the arc groove 16 of the handle 11, thereby pushing the two handles 11 to rotate relative to each other around their respective axes, driving the two cutting edges 12 to close and cut off the defect line segment that has been pressed and stabilized. The pressing plate 32 presses the enameled flat wire 5 before the blade 12, following the sequence of pressing first and then cutting. During the cutting process, the second toothed rack 26 moves forward continuously, causing the rubber sheath to continuously increase in compression, adaptively increasing the contact area and clamping force, ensuring that the wire is absolutely fixed while perfectly protecting its insulation layer and conductor. After the shearing is completed, the drive motor reverses, causing the second rack 26 to move backward and the first rack to move forward. The pressing plate 32 flips upward, the two blades 12 open and move forward, making room for the rotation of the rotating rod 6, and causing all components to reset. Finally, the cylinder is activated, providing power to move the clamping rod to the outside of the receiving roller shaft 39, clamping the cut enameled flat wire 5 new wire end. The control motor located in the working position is activated, providing power to rotate the receiving rack 3 in the working position, and the equipment enters a new round of continuous inspection.

[0039] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An online inspection device for enameled flat wire, comprising a frame (1), wherein a feeding rack (2), a receiving rack (3), and a tensioning wheel assembly (4) are provided on the frame (1) between the feeding rack (2) and the receiving rack (3), and a detection path for enameled flat wire (5) is formed between the feeding rack (2), the tensioning wheel assembly (4), and the receiving rack (3), characterized in that: The frame (1) is also equipped with a detection component for detecting defects in the enameled flat wire (5) on the detection path; The detection component includes an image acquisition unit and a distance measurement unit mounted on a frame (1); The frame (1) is also equipped with a switching system for cutting and rewinding defective enameled flat wire (5); The switching system includes a rotating rod (6), which is rotatably connected to the frame (1) via a short shaft at its middle position. A servo motor for driving the rotating rod (6) to rotate is fixed on the frame (1). There are two receiving racks (3), which are respectively located at both ends of the rotating rod (6) and rotatably connected to the rotating rod (6); A support plate (7) is provided on the front side of the rotating rod (6). The support plate (7) is located between the two receiving racks (3) and is fixedly connected to the frame (1) through a mounting bracket (8). The switching system also includes a shearing assembly for cutting the enameled flat wire (5) between the two receiving racks (3); The switching system also includes a pressing component that presses the enameled flat wire (5) between the two receiving racks (3) against the support plate (7) to facilitate cutting.

2. The online inspection device for enameled flat wire as described in claim 1, characterized in that, The shearing assembly includes a follower frame (9) with an n-shaped cross section. Two ear seats (10) are fixed on the rear side of the follower frame (9) and are arranged at intervals. Two oppositely arranged blade handles (11) are rotatably connected in each ear seat (10). Each blade handle (11) extends out of the front of the ear seat (10) and forms a blade (12). Two movable blocks (13) are sleeved on the outside of the follower frame (9). The movable blocks (13) are slidably engaged with the ear seat (10) and can slide back and forth along the ear seat (10). Each movable block (13) has a long strip-shaped groove (14) extending in the front and back direction. A slider (15) is slidably connected in the groove. The slider (15) extends out of the groove and is fixed to the outer wall of the follower frame (9). An arc-shaped groove (16) is provided on the handle (11). A connecting rod (17) adapted to the arc-shaped groove (16) is fixed in the groove. The connecting rod (17) extends into the corresponding arc-shaped groove (16). The movable block (13) is connected to the follower frame (9) by a spring.

3. The online inspection device for enameled flat wire as described in claim 2, characterized in that, The follower frame (9) has horizontal guide rods (18) fixed on both the left and right sides. A vertical support (19) is fixed on the mounting frame (8). A guide hole for the guide rod (18) to pass through is passed through the support (19). The guide rod (18) is slidably connected to the guide hole. A stop block (20) is fixed on the guide rod (18). The follower frame (9) is located behind the support (19), and the stop block (20) is located in front of the support (19). The two movable blocks (13) are fixedly connected by a connecting plate (21). A swing rod (22) is hinged to the connecting plate (21). The middle position of the support (19) has a movable hole (23) through which the swing rod (22) passes. The mounting frame (8) is provided with a control component to control the reciprocating motion of the connecting plate (21).

4. The online inspection device for enameled flat wire as described in claim 3, characterized in that, The control component includes a gear (24) which is rotatably connected to the mounting bracket (8); The gear (24) has a first rack (25) and a second rack (26) meshing with it on both sides. The first rack (25) and the second rack (26) are slidably mounted on the mounting bracket (8) through a slide rail structure, and their sliding directions are parallel and their movement directions are opposite. The end of the swing arm (22) away from the connecting plate (21) is hinged to the first rack (25); A strip plate (27) is fixedly provided on the second rack (26), and a strip hole (28) is provided on the strip plate (27); A movable block (29) is slidably connected inside the strip hole (28), and the top of the movable block (29) extends upward out of the strip plate (27). A swing arm (30) is hinged to one end of the moving block (29) extending out of the strip plate (27). An L-shaped mounting plate (31) is fixed on the mounting frame (8). The L-shaped mounting plate (31) is rotatably connected to the swing arm (30). A motor that drives the swing arm (30) to rotate is fixed on the L-shaped mounting plate (31).

5. The online inspection device for enameled flat wire as described in claim 4, characterized in that, The pressing assembly includes a pressing plate (32), the rear end of which is bent toward the support plate (7); The front end of the pressing plate (32) has an elongated hole (33), and a limiting plate (34) is provided on both the left and right sides of the pressing plate (32). Each of the limiting plates (34) has a horizontally extending strip guide groove (35), and a long rod (36) is inserted into the elongated hole (33). The two ends of the long rod (36) extend out of the elongated hole (33) and slide through the corresponding strip guide groove (35). A movable cavity (37) runs through the support (19), and the top of the limiting plate (34) is fixed to the upper wall of the movable cavity (37); A transmission rod (38) is fixedly connected to one end of the long rod (36) that protrudes from the limiting plate (34), and the front end of the transmission rod (38) is fixedly connected to the second rack (26).

6. The online inspection device for enameled flat wire as described in claim 5, characterized in that, The rear end of each pressing plate (32) is covered with a rubber sleeve.

7. The online inspection device for enameled flat wire as described in claim 6, characterized in that, The rubber sheath is made of polyurethane material with a thickness of 5-10mm.

8. The online inspection device for enameled flat wire as described in claim 6, characterized in that, The rubber sheath has a wedge-shaped longitudinal section. The rubber sheath has a fixed bottom surface that is bonded to the pressing plate (32), a pressing surface for contacting the enameled flat wire (5), and an inclined guide surface that connects the fixed bottom surface and the pressing surface. The front end of the pressing surface is provided with a rounded corner.

9. The online inspection device for enameled flat wire as described in claim 1, characterized in that, The receiving rack (3) includes a receiving roller (39) and side plates (40) located at both ends of the receiving roller. The receiving roller shaft (39) is provided with a fixing component that allows the sheared enameled flat wire (5) to be wrapped around the receiving frame (3).

10. The online inspection device for enameled flat wire as described in claim 9, characterized in that, The fixing assembly includes a connecting post fixed to the outside of the side plate (40); The connecting column has at least one axially extending guide groove circumferentially on its shaft. A clamping rod is slidably connected in the guide groove, and the clamping rod extends out of the guide groove, with its length direction parallel to the axis of the receiving roller shaft (39); A cylinder is fixed at the end of the connecting column, and the extended end of the cylinder is connected to a clamping rod. A through hole is provided on the side plate (40) for the clamping rod to pass through and extend to the outside of the receiving roller shaft (39).

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