Automatic core loading device for transformer

Abstract

The application discloses a kind of automatic core loading devices of transformer, including base, platform, conveying belt, magnetic core installation part, magnetic core supply part, point gum part, magnetic core re-pressing part and shaping part. Multiple profiling mould seats are provided on the conveying belt, and first station and second station are sequentially arranged along the conveying direction. At the first station, one side is automatically fed by the vertical magnetic core cylinder using its own weight, and the other side is taken out by the horizontal magnetic core slot cooperating with the turnover plate to turn 90 degrees, and the butt joint surface of the magnetic core is bar coated before assembly. The two clamps insert the magnetic core into the framework simultaneously to complete the insertion. At the second station, the re-pressing part makes the top plate press the magnetic core by extruding the sliding block, and the sliding block drives the butt joint surface of the magnetic core to reciprocate relatively to spread the glue evenly. The shaping part corrects the position deviation of the magnetic core by pressing down the C-shaped clamp block. The application integrates feeding, glueing, assembly, re-pressing and shaping, and two stations can work simultaneously, with high assembly efficiency, reliable gluing and good precision.

Description

Technical Field

[0001] This invention relates to the field of transformer manufacturing equipment technology, specifically to an automatic core loading device for transformers. Background Technology

[0002] Transformer cores typically consist of two "E"-shaped cores inserted into the frame from both sides (e.g., Figure 1 As shown in the figure, the mating surfaces are glued together. The existing assembly method mainly relies on manual or semi-automatic equipment. Operators need to manually pick up and put in the magnetic core and the frame, insert the magnetic cores on both sides respectively, and then apply glue to press them together. This traditional method has the following problems: The process is inefficient, requiring multiple pick-up, placement, positioning, and pressing steps for each transformer assembly, making it difficult to meet the demands of mass production. Poor consistency makes it difficult to control the insertion depth and mating gap of the magnetic cores on both sides during manual operation, which affects the electrical performance of the transformer, such as its inductance. The bonding quality is unstable. The amount of glue applied, the location of glue application, and the pressing force vary from person to person, which can easily lead to glue overflow, weak bonding, or misalignment of the magnetic core. Therefore, there is an urgent need for a transformer core assembly equipment that can automatically complete core feeding, glue application, interlocking assembly, re-pressurization, and position correction within the same device, so as to improve assembly efficiency, accuracy, and bonding reliability. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an automated transformer core loading device that features high integration, reliable assembly, and the ability to automatically complete core feeding, dispensing, insertion, re-pressing, and shaping.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automatic transformer core loading device, comprising: The base and the platform fixed on top of it; A conveyor belt is set on the platform, and multiple contour molds for placing the skeleton are set on the conveyor belt. The multiple contour molds are spaced equally apart. A first station and a second station are set sequentially along the moving direction of the conveyor belt. The distance between the first station and the second station is the same as the distance between two adjacent contour molds. A magnetic core mounting part is set at the first work station and includes a fixed plate and a flip plate. The fixed plate is fixedly set on a platform on one side of the conveyor belt, and the flip plate is hinged to a platform on the other side of the conveyor belt. Both the fixed plate and the flip plate are provided with a sliding mounting plate and a cylinder for pushing the mounting plate to slide. The sliding direction of the mounting plate is perpendicular to the moving direction of the conveyor belt. A pair of grippers are slidably set on the mounting plate. The magnetic core supply unit is located at the first work station and includes a magnetic core cylinder and a magnetic core groove. The magnetic core cylinder is fixed vertically on the platform by an extension frame. A gap is left between its bottom and the fixed plate for a single magnetic core to be moved out. The gripping part of the gripper can be placed in the gap. The magnetic core groove is fixed horizontally on the platform. When the flip plate is rotated 90 degrees, the gripping part of the gripper can be aligned with the magnetic core discharged from the magnetic core groove. The dispensing section is located on a platform on one side of the magnetic core slot and is used to dispense adhesive onto the upper surface of the magnetic core inside the magnetic core slot. The magnetic core pressing section, located at the second work station, includes two pressing sliders and two swinging sliders. The two pressing sliders are slidably disposed on platforms located on both sides of the conveyor belt, with the sliding direction of the pressing sliders perpendicular to the moving direction of the conveyor belt. The two swinging sliders are slidably disposed above the two pressing sliders, with the sliding direction of the swinging sliders parallel to the moving direction of the conveyor belt. Two top plates are fixedly disposed on the side of the two swinging sliders that are close to each other, and the height of the top plates matches the height of the assembled magnetic core. The shaping section, located at the second work station, includes a gantry frame and a C-shaped clamp. The gantry frame is fixed on the platform, and a second cylinder is located at the center of the gantry frame. The C-shaped clamp is fixed on the telescopic end of the second cylinder. The inner wall length of the C-shaped clamp matches the length of the magnetic core, and a chamfer is provided on the inner side of the bottom of the C-shaped clamp.

[0005] Preferably, the platform has two mounting ports, and the two extrusion sliders are slidably disposed in the two mounting ports. A cylinder is fixedly disposed at the bottom of the platform. The telescopic ends of the cylinder are hinged to one end of two connecting rods, and the other ends of the two connecting rods are hinged to the bottom of the two extrusion sliders.

[0006] Preferably, two levers are rotatably connected inside the gantry frame. A U-shaped groove is provided above the swing slider, and the bottom of the lever is inserted into the U-shaped groove. A crankshaft is rotatably arranged on the outside of the gantry frame. The two crank pins on the crankshaft are in opposite directions. A shift fork is fixedly arranged on each of the two levers. The upper end of the shift fork is sleeved on the crank pin of the crankshaft. A motor for driving the crankshaft to rotate is fixedly arranged on the gantry frame.

[0007] Preferably, the mounting plate is provided with a guide slide rail, a pair of grippers are slidably connected to the guide slide rail, a cylinder four is fixedly provided on the mounting plate, and a pair of connecting rods two are hinged to one end of each of the telescopic ends of the cylinder four, and the other end of each pair of connecting rods two is hinged to the pair of grippers.

[0008] Preferably, the dispensing unit includes a slide table, a fixing frame, and a dispensing gun. The slide table is slidably disposed on the platform along the length direction of the magnetic core groove. The fixing frame is fixed on the slide table and a crossbar is provided on the fixing frame. The dispensing gun is mounted on the crossbar and can be adjusted along the length direction of the crossbar. A cylinder is provided on the platform for pushing the slide table to move.

[0009] Preferably, a push plate that slides along the length direction is provided inside the magnetic core groove, a sliding opening is provided on the lower wall of the magnetic core groove, a lead screw is rotatably provided below the magnetic core groove, the bottom of the push plate passes through the sliding opening and is threaded to the lead screw, a second motor for driving the lead screw to rotate is fixedly provided on the magnetic core groove, and a pair of damping blocks are provided inside the discharge port of the magnetic core groove.

[0010] Preferably, an installation port two is provided in the platform located at the first work station, a flipping block is rotatably arranged in the installation port two, the flip plate is fixedly installed on the flipping block, and a flipping cylinder for driving the flipping block is fixedly arranged on the platform.

[0011] Preferably, the conveyor belt is a plate chain type, and sprockets are rotatably provided at both ends of the base. The conveyor belt is sleeved on the two sprockets, and a motor for driving the sprockets to rotate is fixedly provided on the base.

[0012] Preferably, the upper surface of the platform is provided with a limiting groove, the conveyor belt is placed in the limiting groove, and the width of the limiting groove matches the width of the conveyor belt.

[0013] Preferably, two positioning holes are provided on both sides of the contour mold base, and positioning pins are fixedly provided on the side wall of the two extrusion sliders near the contour mold base. When the top plate abuts against the magnetic core, the positioning pins are inserted into the positioning holes, and the port edge of the positioning holes is chamfered.

[0014] This invention provides an automatic core-loading device for transformers, which has the following beneficial effects: 1. This invention integrates multiple processes such as magnetic core feeding, glue dispensing, interlocking assembly, repressing and glue spreading, and position correction into the same device. The conforming mold base is transported to the first and second work stations in sequence by the conveyor belt. The two work stations can operate simultaneously, thereby greatly improving the assembly efficiency of the transformer. 2. This invention designs different feeding structures for the magnetic cores on both sides. On one side, a vertically arranged magnetic core cylinder allows the magnetic core to fall under its own weight, and the next magnetic core can be automatically loaded when the gripper resets. On the other side, the magnetic core slot is set horizontally so that the mating surface of the magnetic core faces upward, which facilitates the glue gun to apply glue in a stable and uniform strip on the horizontal surface. At the same time, the flip plate rotates 90 degrees to change the glued magnetic core from a horizontal to a vertical position so that the gripper can pick it up and insert it into the frame simultaneously with the magnetic core on the other side. This design effectively solves the process contradiction between the horizontal position required for glue application and the vertical position required for assembly. No additional turning mechanism is required, and the structure is compact and the operation is reliable. 3. Before assembly, the magnetic core mating surfaces in the horizontal magnetic core slot are coated with strip-shaped adhesive. The adhesive coating is uniform and controllable. After assembly, the swing slider of the second station pressing part drives the magnetic core mating surfaces to generate relative reciprocating motion, which can fully spread the adhesive on the two magnetic core mating surfaces and effectively improve the adhesion effect. 4. In the repressing process, the present invention moves two extrusion sliders synchronously toward the center, so that the top plates on both sides press against the outer wall of the magnetic core at the same time, ensuring the alignment of the magnetic core and the frame. During the reciprocating spreading process, the extrusion force is continuously applied to the two magnetic cores, further ensuring the bonding strength. 5. The present invention also corrects the horizontal positional deviation of the two magnetic cores by pressing down the C-shaped clamp of the shaping part and guiding the bottom chamfer, thus ensuring the dimensional accuracy of the assembled magnetic cores. Attached Figure Description

[0015] Figure 1 This is a 3D structural diagram of a transformer; Figure 2 This is a first-view perspective perspective view of the present invention; Figure 3 This is a second-view perspective perspective view of the present invention; Figure 4 This is a third-view perspective view of the present invention; Figure 5 for Figure 2 A magnified view of part A in the image; Figure 6 This is a sectional view of the first workstation. Figure 7 This is a sectional view of the second workstation. Figure 8 This is a 3D view of the flap when it is in a vertical position. Figure 9 A perspective view of the mounting plate and grippers; Figure 10 This is a 3D view of the magnetic core slot; Figure 11 A three-dimensional view of the C-shaped clamping block; Figure 12A 3D view of the toggle block; Figure 13 A three-dimensional view of the crank; Figure 14 A 3D view of the extrusion slider.

[0016] In the diagram: 1. Base; 2. Platform; 3. Conveyor belt; 4. Contouring mold base; 5. Fixing plate; 6. Flip plate; 7. Mounting plate; 8. Cylinder 1; 9. Gripper; 10. Magnetic core cylinder; 11. Magnetic core groove; 12. Extension frame; 13. Extrusion slider; 14. Swing slider; 15. Top plate; 16. Gantry frame; 17. C-shaped clamp; 18. Cylinder 2; 19. Mounting port 1; 20. Cylinder 3; 21. Connecting rod 1; 22. Pulley; 23. U-shaped groove; 24. Crankshaft 25. Crank pin; 26. Shift fork; 27. Motor 1; 28. Guide rail; 29. ​​Cylinder 4; 30. Connecting rod 2; 31. Slide table; 32. Fixing bracket; 33. Glue gun; 34. Cylinder 5; 35. Push plate; 36. Slide opening; 37. Lead screw; 38. Motor 2; 39. Damping block; 40. Mounting port 2; 41. Tilting block; 42. Tilting cylinder; 43. Sprocket; 44. Motor 3; 45. Limiting groove; 46. Positioning hole; 47. Positioning pin. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0018] Please see Figures 2-14 The present invention provides a technical solution: an automatic core loading device for transformers, including a base 1, and further comprising: Platform 2, as the main mounting body for all components of this device, is fixedly mounted on base 1; Conveyor belt 3, please refer to Figure 2 The platform 2 is set up, and the conveyor belt 3 is equipped with multiple contour mold bases 4 for placing the skeleton. The bottom of the groove of the contour mold base 4 matches the shape of the bottom of the skeleton, so that the skeleton can be stably placed in the contour mold base 4 and at the same time, it limits its horizontal direction. The multiple contour mold bases 4 are spaced equally. A first station and a second station are set up in sequence along the moving direction of the conveyor belt 3. The distance between the first station and the second station is the same as the distance between two adjacent contour mold bases 4. The two contour mold bases 4 are moved to the first station and the second station by the conveyor belt 3. For the core mounting section, please refer to [link / reference]. Figure 3 , Figure 6The device is set at the first work station and includes a fixed plate 5 and a flip plate 6. The fixed plate 5 is fixedly set on the platform 2 on one side of the conveyor belt 3, and the flip plate 6 is hinged to the platform 2 on the other side of the conveyor belt 3. Both the fixed plate 5 and the flip plate 6 are provided with a sliding mounting plate 7 and a cylinder 8 for pushing the mounting plate 7 to slide. The sliding direction of the mounting plate 7 is perpendicular to the moving direction of the conveyor belt 3. A pair of grippers 9 are slidably set on the mounting plate 7. The pair of grippers 9 on the fixed plate 5 is used to grab the magnetic core on one side, and the pair of grippers 9 on the flip plate 6 is used to grab the magnetic core on the other side. The cylinder 8 can push the mounting plate 7 to move towards the contour mold base 4. The grippers 9 push the clamped magnetic core into the frame to realize the merging and docking of the two magnetic cores. For the core supply section, please refer to [link / reference]. Figure 3 , Figure 6 The system, located at the first workstation, includes a magnetic core cylinder 10 and a magnetic core slot 11. The magnetic core cylinder 10 is vertically fixed to the platform 2 via an extension frame 12 for feeding a pair of grippers 9 on a fixed plate 5. A gap is left between its bottom and the fixed plate 5 for individual magnetic cores to be removed. The gripping part of the grippers 9 can be placed in this gap. The magnetic cores inside the magnetic core cylinder 10 can descend by their own weight and enter between the pair of grippers 9 on the fixed plate 5. The movement of the grippers 9 pushes out the lowest magnetic core inside the magnetic core cylinder 10 and into the slot. During assembly, the magnetic core above will fall onto the upper surface of the gripper 9. After the magnetic core is assembled, when the gripper 9 is reset, the lowest magnetic core can fall back into the pair of grippers 9, realizing automatic feeding of the pair of grippers 9 on the fixed plate 5. The magnetic core groove 11 is fixed horizontally on the platform 2 and is used to feed the pair of grippers 9 on the flip plate 6. When the flip plate 6 is rotated 90 degrees, the gripping part of the gripper 9 can be aligned with the magnetic core discharged from the magnetic core groove 11. After the gripper 9 grabs the magnetic core, it switches to a horizontal state and is ready for assembly. For the dispensing section, please refer to [link / reference]. Figure 3 , Figure 8 , Figure 10 The platform 2, which is set on one side of the magnetic core groove 11, is used to apply glue to the mating surface of the magnetic core in the magnetic core groove 11. The horizontally placed magnetic core groove 11 can make the mating surface of the magnetic core face upward, thus improving the glue coating effect. For the core reloading section, please refer to [link / reference]. Figure 2 , Figure 5 , Figure 7The assembly is located at the second work station and includes two extrusion sliders 13 and two swing sliders 14. The two extrusion sliders 13 are slidably disposed in platforms 2 located on both sides of the conveyor belt 3, with the sliding direction of the extrusion sliders 13 perpendicular to the moving direction of the conveyor belt 3. The two swing sliders 14 are slidably disposed above the two extrusion sliders 13, with the sliding direction of the swing sliders 14 parallel to the moving direction of the conveyor belt 3. Two top plates 15 are fixedly disposed on the side of the two swing sliders 14 that are close to each other. The height of the top plates 15 matches the height of the assembled magnetic cores. After the two magnetic cores are initially joined, they are moved into the second work station by the conveyor belt. The two extrusion sliders 13 move simultaneously toward the contour mold base 4 to make the top plates 15 abut against the magnetic cores and continuously extrude the two magnetic cores. The swing sliders 14 move back and forth, causing the contact surfaces of the two magnetic cores to move relative to each other (there is a gap between the magnetic cores and the frame), so that the glue on the joint surfaces of the two magnetic cores is fully spread and the adhesion effect is improved. For plastic surgery information, please refer to [link / reference]. Figure 2 , Figure 5 , Figure 7 , Figure 11 The system is located at the second workstation and includes a gantry frame 16 and a C-shaped clamp 17. The gantry frame 16 is fixed on the platform 2. A cylinder 18 is located at the center of the gantry frame 16. The C-shaped clamp 17 is fixed on the telescopic end of the cylinder 18. The inner wall length of the C-shaped clamp 17 matches the length of the magnetic core. The bottom inner side of the C-shaped clamp 17 is chamfered. The cylinder 18 can push the C-shaped clamp 17 downward and lock it onto the outside of the joint between the two magnetic cores. The chamfer on the bottom inner side of the C-shaped clamp 17 can guide the two horizontally misaligned magnetic cores to align, thus completing the relative position correction of the two magnetic cores.

[0019] As an embodiment of the present invention, please refer to Figure 4 , Figure 7 Platform 2 has two mounting ports 19, and two extrusion sliders 13 are slidably disposed in the two mounting ports 19. A cylinder 20 is fixedly disposed at the bottom of platform 2. The telescopic end of cylinder 20 is hinged to one end of two connecting rods 21, and the other end of the two connecting rods 21 is hinged to the bottom of the two extrusion sliders 13. By activating cylinder 20, the two extrusion sliders 13 can be driven to move simultaneously, ensuring that the two magnetic cores can be aligned with the frame when clamped, and ensuring that the force on both sides is the same when the two magnetic cores are extruded.

[0020] As an embodiment of the present invention, please refer to Figure 2 , Figure 5 , Figure 7 , Figure 12 , Figure 13Two levers 22 are rotatably connected inside the gantry frame 16. A U-shaped groove 23 is provided above the swing slider 14, and the bottom of the lever 22 is inserted into the U-shaped groove 23. The reciprocating swing of the lever 22 can drive the swing slider 14 to swing back and forth. A crankshaft 24 is rotatably provided on the outside of the gantry frame 16. Two crank pins 25 on the crankshaft 24 are in opposite directions. A fork 26 is fixedly provided on each of the two levers 22. The upper end of the fork 26 is sleeved on the crank pin 25 of the crankshaft 24. When the crankshaft 24 rotates, it can drive the fork 26 to swing back and forth, thereby driving the lever 22 to swing back and forth. A motor 27 for driving the crankshaft 24 to rotate is fixedly provided on the gantry frame 16. When the motor 27 is started, the crankshaft 24 can be rotated. The two swing sliders 14 can swing in opposite directions through the two crank pins 25 on the crankshaft 24.

[0021] As an embodiment of the present invention, please refer to Figure 9 The mounting plate 7 is provided with a guide slide rail 28, and a pair of grippers 9 are slidably connected to the guide slide rail 28. A cylinder 4 29 is fixedly installed on the mounting plate 7. One end of a pair of connecting rods 20 is hinged to both sides of the telescopic end of the cylinder 4 29, and the other end of the pair of connecting rods 20 is hinged to a pair of grippers 9. The cylinder 4 29 can drive the pair of grippers 9 to move simultaneously, thereby grasping the magnetic core.

[0022] As an embodiment of the present invention, please refer to Figure 3 , Figure 6 , Figure 8 The dispensing unit includes a slide table 31, a fixing frame 32, and a dispensing gun 33. The slide table 31 is slidably mounted on the platform 2 along the length direction of the magnetic core groove 11. The fixing frame 32 is fixed on the slide table 31 and has a crossbar. The dispensing gun 33 is mounted on the crossbar and can be adjusted along the length direction of the crossbar to facilitate fine-tuning of the dispensing position. The platform 2 is equipped with a cylinder 34 for moving the slide table 31. The cylinder 34 can move the slide table 31 along the length direction of the magnetic core groove 11, so that the dispensing gun 33 can apply strip-shaped glue along the length direction of the rectangular mating surface of the magnetic core, which facilitates the spread of glue evenly in subsequent processes.

[0023] As an embodiment of the present invention, please refer to Figure 10A push plate 35 that slides along the length of the magnetic core groove 11 is provided inside the magnetic core groove 11. A sliding opening 36 is provided on the lower wall of the magnetic core groove 11. A lead screw 37 is rotatably provided below the magnetic core groove 11. The bottom of the push plate 35 passes through the sliding opening 36 and is threaded to the lead screw 37. A second motor 38 for driving the lead screw 37 to rotate is fixedly provided on the magnetic core groove 11. The second motor 38 can drive the lead screw 37 to rotate. The rotation of the lead screw 37 can cause the push plate 35 to move along the length of the magnetic core groove 11, thereby pushing the multiple magnetic cores placed inside it. A pair of damping blocks 39 are provided on the inner side of the discharge port of the magnetic core groove 11. The pair of damping blocks 39 can provide friction to the magnetic cores located at the discharge port to prevent the magnetic cores from easily sliding out of the magnetic core groove 11 due to vibration.

[0024] As an embodiment of the present invention, please refer to Figure 3 , Figure 4 , Figure 6 The platform 2 located at the first work station has an installation port 40. A flip block 41 is rotatably installed in the installation port 40. A flip plate 6 is fixedly installed on the flip block 41. A flip cylinder 42 for driving the flip block 41 is fixedly installed on the platform 2. The flip cylinder 42 drives the flip plate 6 on the flip block 41 to rotate, thereby realizing the switching between the horizontal and vertical states of the flip plate 6.

[0025] As an embodiment of the present invention, please refer to Figure 2 The conveyor belt 3 adopts a plate chain type to ensure that the contour mold base 4 can be installed on the chain link. The base 1 has sprockets 43 rotatably installed at both ends. The conveyor belt 3 is sleeved on the two sprockets 43. The base 1 is fixedly equipped with a motor 44 for driving the sprockets 43 to rotate.

[0026] As an embodiment of the present invention, please refer to Figure 2 The upper surface of platform 2 is provided with a limiting groove 45, and the conveyor belt 3 is placed in the limiting groove 45. The width of the limiting groove 45 matches the width of the conveyor belt 3 to reduce swaying in the conveying width direction.

[0027] As an embodiment of the present invention, please refer to Figure 2 , Figure 7 , Figure 14 The mold base 4 has two positioning holes 46 on both sides. The two extrusion sliders 13 are fixedly provided with positioning pins 47 on the side wall near the mold base 4. When the top plate 15 abuts against the magnetic core, the positioning pins 47 are inserted into the positioning holes 46. The edge of the positioning hole 46 is chamfered to facilitate the insertion of the positioning pins 47 into the positioning holes. When there is a small positional deviation between the mold base 4 and the second station, the positioning pins 47 can be guided into the positioning holes 46. This achieves precise positioning of the mold base 4 to the second station, improves the accuracy of the forming process, and fixes the movement of the conveyor belt 3 to ensure stable processing conditions when processing the transformer on the mold base 4.

[0028] Working principle and usage process of this invention: S1. Preparation stage: Place the skeleton into the contour mold base 4, and place multiple magnetic cores in the magnetic core cylinder 10 and the magnetic core groove 11. The magnetic core mating surface in the magnetic core cylinder 10 should face the conveyor belt 3, and the magnetic core mating surface in the magnetic core groove 11 should face upward.

[0029] S2, Dispensing Stage: Start motor 2 38 drives push plate 35 to move, pushing the magnetic core in magnetic core groove 11 towards the discharge port (the movement distance of push plate 35 is controlled by the control system to be equal to the thickness of magnetic core each time). The magnetic core located at the discharge port can be below dispensing gun 33. The glue is applied to the mating surface of the magnetic core by dispensing gun 33. The dispensing gun 33 can be moved by starting cylinder 5 34 to achieve the application of strip-shaped glue on the mating surface.

[0030] S3, Loading Stage: Start motor 344 to move conveyor belt 3, move the contour mold base 4 with skeleton into the first station and stop, then start tilting cylinder 42 to switch the tilting plate 6 to the vertical state (see [link]). Figure 8 At this point, the gripping end of the claw 9 on the flip plate 6 can be aligned with the discharge port of the magnetic core slot 11. The motor 38 is started again to push the magnetic core with glue applied to the end into the gripping part of the claw 9. After the magnetic core is gripped by the claw 9, the flip plate 6 is adjusted to a horizontal state. Since the gripping part of the claw 9 on the fixing plate 5 is located at the bottom of the magnetic core cylinder 10, the magnetic core located at the bottom of the magnetic core cylinder 10 can be directly gripped by the claw 9. When the magnetic cores are loaded on both sides of the claw 9 at the same time, the cylinder 8 on the fixing plate 5 and the flip plate 6 is started at the same time. Under the push of the cylinder 8, the two magnetic cores are inserted into the frame at the same time to complete the initial assembly.

[0031] S4, Re-pressing Stage: The transformer located at the first station is moved to the second station by the conveyor belt 3. The cylinder 20 is started to drive the two extrusion sliders 13 to move inward simultaneously, so that the two top plates 15 abut against the outer wall of the two magnetic cores. During the movement, the positioning pin 47 can be inserted into the positioning hole 46 to improve the accuracy of the position of the mold base 4. The motor 27 is started to drive the crankshaft 24 to rotate. The crankshaft 24 can make the two levers 22 swing back and forth. The levers 22 drive the two swing sliders 14 and the top plate 15 to swing back and forth. The top plate 15 transmits the reciprocating force to the two magnetic cores, so that the mating surfaces of the two magnetic cores form reciprocating friction, which fully spreads the glue. The extrusion sliders 13 can simultaneously provide extrusion force to the two magnetic cores to achieve re-pressing of the two magnetic cores and improve the adhesion effect. The first station can operate simultaneously with the second station.

[0032] S5. Shaping stage: Start cylinder 2 18 to lower the C-shaped clamp 17 and fasten it to the outside of the two magnetic cores. When the C-shaped clamp 17 lowers, the chamfer on the inner side of its bottom can guide the two misaligned magnetic cores to align, thus completing the relative position correction of the two magnetic cores.

[0033] S6, Unloading stage: Start cylinder 2 18 to reset, so that C-type clamp 17 is disengaged from the transformer. Start cylinder 3 20 to reset, so that the two extrusion sliders 13 are moved away from each other. The top plate 15 is disengaged from the magnetic core. At the same time, the positioning pin 47 is pulled out from the positioning hole 46. Start the conveyor belt 3 to move the transformer of the second station out.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic core-loading device for transformers, characterized in that, include: The base (1) and the platform (2) fixed on it; A conveyor belt (3) is set on the platform (2). Multiple contour mold bases (4) for placing the skeleton are set on the conveyor belt (3). The multiple contour mold bases (4) are spaced equally. A first station and a second station are set sequentially along the moving direction of the conveyor belt (3). The distance between the first station and the second station is the same as the distance between two adjacent contour mold bases (4). The magnetic core mounting part is set at the first work station and includes a fixed plate (5) and a flip plate (6). The fixed plate (5) is fixedly set on the platform (2) on one side of the conveyor belt (3), and the flip plate (6) is hinged to the platform (2) on the other side of the conveyor belt (3). The fixed plate (5) and the flip plate (6) are each provided with a sliding mounting plate (7) and a cylinder (8) for pushing the mounting plate (7) to slide. The sliding direction of the mounting plate (7) is perpendicular to the moving direction of the conveyor belt (3). A pair of grippers (9) are slidably set on the mounting plate (7). The magnetic core supply unit is located at the first work station and includes a magnetic core cylinder (10) and a magnetic core groove (11). The magnetic core cylinder (10) is fixed vertically on the platform (2) by an extension frame (12). A gap is left between its bottom and the fixed plate (5) for a single magnetic core to be moved out. The clamping part of the gripper (9) can be placed in the gap. The magnetic core groove (11) is fixed horizontally on the platform (2). When the flip plate (6) is rotated 90 degrees, the clamping part of the gripper (9) can be aligned with the magnetic core discharged from the magnetic core groove (11). The dispensing section is set on a platform (2) on one side of the magnetic core groove (11) and is used to dispense adhesive onto the upper surface of the magnetic core in the magnetic core groove (11). The magnetic core pressing section is located at the second work station and includes two pressing sliders (13) and two swing sliders (14). The two pressing sliders (13) are respectively slidably disposed in the platforms (2) located on both sides of the conveyor belt (3). The sliding direction of the pressing sliders (13) is perpendicular to the moving direction of the conveyor belt (3). The two swing sliders (14) are slidably disposed above the two pressing sliders (13). The sliding direction of the swing sliders (14) is parallel to the moving direction of the conveyor belt (3). Two top plates (15) are fixedly disposed on the side of the two swing sliders (14) that are close to each other. The height of the top plates (15) matches the height of the assembled magnetic core. The shaping section is located at the second work station and includes a gantry frame (16) and a C-shaped clamp (17). The gantry frame (16) is fixed on the platform (2). A cylinder (18) is located at the center of the gantry frame (16). The C-shaped clamp (17) is fixed on the telescopic end of the cylinder (18). The inner wall length of the C-shaped clamp (17) matches the length of the magnetic core. A chamfer is provided on the inner side of the bottom of the C-shaped clamp (17).

2. The automatic core-loading device for a transformer according to claim 1, characterized in that, The platform (2) is provided with two mounting ports (19), and the two extrusion sliders (13) are slidably disposed in the two mounting ports (19). The bottom of the platform (2) is fixedly provided with a cylinder (20). The telescopic ends of the cylinder (20) are hinged to one end of two connecting rods (21), and the other end of the two connecting rods (21) is hinged to the bottom of the two extrusion sliders (13).

3. The automatic core-loading device for a transformer according to claim 1, characterized in that, Two levers (22) are rotatably connected inside the gantry frame (16). A U-shaped groove (23) is provided above the swing slider (14). The bottom of the lever (22) is inserted into the U-shaped groove (23). A crankshaft (24) is rotatably provided on the outside of the gantry frame (16). The two crank pins (25) on the crankshaft (24) are in opposite directions. A shift fork (26) is fixedly provided on each of the two levers (22). The upper end of the shift fork (26) is sleeved on the crank pin (25) of the crankshaft (24). A motor (27) for driving the crankshaft (24) to rotate is fixedly provided on the gantry frame (16).

4. The automatic core-loading device for a transformer according to claim 1, characterized in that, The mounting plate (7) is provided with a guide rail (28), and a pair of grippers (9) are slidably connected to the guide rail (28). A cylinder four (29) is fixedly provided on the mounting plate (7). One end of a pair of connecting rods two (30) is hinged to both sides of the telescopic end of the cylinder four (29), and the other end of the pair of connecting rods two (30) is hinged to the pair of grippers (9).

5. The automatic core-loading device for a transformer according to claim 1, characterized in that, The dispensing unit includes a slide (31), a fixing frame (32), and a dispensing gun (33). The slide (31) is slidably disposed on the platform (2) along the length direction of the magnetic core groove (11). The fixing frame (32) is fixed on the slide (31). A crossbar is provided on the fixing frame (32). The dispensing gun (33) is mounted on the crossbar. The dispensing gun (33) can be adjusted along the length direction of the crossbar. A cylinder five (34) for pushing the slide (31) to move is provided on the platform (2).

6. The automatic core-loading device for a transformer according to claim 1, characterized in that, The magnetic core groove (11) is provided with a push plate (35) that slides along its length. The lower wall of the magnetic core groove (11) is provided with a sliding opening (36). A lead screw (37) is rotatably provided below the magnetic core groove (11). The bottom of the push plate (35) passes through the sliding opening (36) and is threaded onto the lead screw (37). A second motor (38) for driving the lead screw (37) to rotate is fixedly provided on the magnetic core groove (11). A pair of damping blocks (39) are provided inside the discharge port of the magnetic core groove (11).

7. The automatic core-loading device for a transformer according to claim 1, characterized in that, An installation port two (40) is provided in the platform (2) located at the first work station. A flip block (41) is rotatably arranged in the installation port two (40). The flip plate (6) is fixedly installed on the flip block (41). A flip cylinder (42) for driving the flip block (41) is fixedly arranged on the platform (2).

8. The automatic core-loading device for a transformer according to claim 1, characterized in that, The conveyor belt (3) is a plate chain type. The base (1) is rotatably equipped with sprockets (43) at both ends. The conveyor belt (3) is sleeved on the two sprockets (43). The base (1) is fixedly equipped with a motor (44) for driving the sprockets (43) to rotate.

9. The automatic core-loading device for a transformer according to claim 8, characterized in that, The upper surface of the platform (2) is provided with a limiting groove (45), and the conveyor belt (3) is placed in the limiting groove (45). The width of the limiting groove (45) matches the width of the conveyor belt (3).

10. The automatic core-loading device for a transformer according to claim 1, characterized in that, The contour mold base (4) has two positioning holes (46) on both sides. The two extrusion sliders (13) are fixedly provided with positioning pins (47) on the side wall of the contour mold base (4). When the top plate (15) abuts against the magnetic core, the positioning pins (47) are inserted into the positioning holes (46). The edge of the positioning hole (46) is chamfered.

Images