A four-fold tooling for T-shaped magnetic core coil assembly

Abstract

The utility model discloses a four -folding tool for T type magnetic core coil assembly belongs to T type magnetic core coil assembly equipment technical field, including third base, third carrier positioning base and four -folding knife mould, install third carrier positioning base on third base, install horizontal carrier on third carrier positioning base, the T type magnetic core coil after three -folding is placed on the carrier, the four -folding knife mould is installed to the vertical downwardly pastes T type magnetic core bottom plate inner surface with the free end of the coil being bent into vertical after the four -folding knife mould descending can be bent into horizontal, the third vertical plate lower end fixed connection is established on third base. The utility model can improve the efficiency, quality and precision of T type magnetic core coil four -folding.

Description

Technical Field

[0001] This utility model relates to a four-fold tooling for assembling T-shaped magnetic core coils, belonging to the technical field of T-shaped magnetic core coil manufacturing equipment. Background Technology

[0002] T-shaped magnetic core coils consist of a T-shaped magnetic core and a flat coil wound around the cylindrical part of the T-shaped magnetic core. During assembly, the semi-finished product, with the T-shaped magnetic core and coil thickness, needs to be placed on a carrier. The free end of the coil is then bent, cut, bent twice, bent three times, and bent four times to bend the coil and attach it to the magnetic core base plate, thus obtaining a complete T-shaped magnetic core coil. However, existing equipment does not have any relevant molds to achieve this assembly for T-shaped magnetic cores. For the four-fold bending, the conventional method is to manually place the coil on a simple carrier and perform the four-fold bending, which is inefficient, results in poor quality, and cannot ensure accuracy. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a four-fold tooling for assembling T-shaped magnetic core coils, which can improve the efficiency, quality and accuracy of four-fold bending of T-shaped magnetic core coils.

[0004] The technical solution adopted by this utility model is as follows: a four-fold tooling for assembling T-shaped magnetic core coils, including a third base, a third carrier positioning base, and a four-fold die. The third carrier positioning base is installed on the third base, and a horizontal carrier is installed on the third carrier positioning base. The T-shaped magnetic core coil after three bends is placed on the carrier. A third transverse groove for embedding the carrier is provided on the upper side of the third carrier positioning base. The end face of the T-shaped magnetic core base plate of the T-shaped magnetic core coil abuts against the rear wall plate of the third transverse groove. The free end of the coil of the T-shaped magnetic core coil is located at the top and faces forward horizontally. The rear wall plate of the third transverse groove is provided with two third clearance grooves facing each free end of the coil. A four-fold die is installed directly above the third carrier positioning base. The four-fold die is connected to the third upright plate through a third vertical lifting mechanism. After the four-fold die is lowered, it can bend the horizontal free end of the coil into a vertical downward fit against the inner surface of the T-shaped magnetic core base plate. The lower end of the third upright plate is fixedly connected to the third base.

[0005] Furthermore, the aforementioned carrier includes a strip-shaped main body and a limiting pad. A square-section through-hole is formed in the middle of the strip-shaped main body along its length. Multiple embedding slots for placing T-shaped magnetic core coils are provided on the top surface of the strip-shaped main body along its length. These embedding slots connect to the square-section through-hole. Four symmetrical limiting and positioning slots for bending the two free ends of the coil are provided on both sides of the embedding slots along the length of the strip-shaped main body, directly opposite a first clearance groove of the same width and two third clearance grooves of the same width. The limiting and positioning slots are vertical through-slots, extending into the embedding slot to a depth L, where L is the coil thickness. The limiting pad has a strip-shaped structure. The active part is embedded into the square cross-section through hole with a clearance fit on both sides. The limiting pad has multiple positioning through holes along its length that can be aligned with the embedding groove. The positioning through holes can be embedded into the cylindrical part of the T-shaped magnetic core for positioning. The strip body has multiple fixing step holes along its length. After the fastening screw passes through the fixing step hole laterally, it is fixedly connected to the side of the limiting pad, and the head of the fastening screw does not protrude from the fixing step hole. The fixing step hole is a vertical strip-shaped through hole. Each fixing step hole is arranged between two adjacent limiting positioning grooves. The limiting pad can be positioned and fixed in the set position by the fastening screw and the fixing step hole.

[0006] Furthermore, the aforementioned four-fold die includes a four-fold die body, a die body connecting plate is provided on the top of the four-fold die body, the die body connecting plate is fixedly connected to the four-fold die body base, the four-fold die body base is connected to the third vertical plate through the third vertical lifting mechanism, and multiple pairs of four-fold blades are evenly spaced laterally at the bottom of the four-fold die body. Each pair of four-fold blades can extend into two third clearance grooves and limit positioning grooves and push the two free ends of a coil downward to the vertical position and fit against the inner end face of the T-shaped magnetic core base plate.

[0007] Furthermore, the aforementioned third vertical lifting mechanism includes vertical guide rods, linear bearings, and a four-fold vertical telescopic cylinder. Two vertical guide rods are symmetrically fixedly connected to the upper side of the four-fold blade body seat. The two vertical guide rods are fixedly connected to the lifting horizontal plate through two linear bearings. The cylinder rod of the four-fold vertical telescopic cylinder is fixedly connected to the four-fold blade body seat, and the cylinder seat of the four-fold vertical telescopic cylinder is fixedly connected to the middle of the top side of the lifting horizontal plate.

[0008] Furthermore, the aforementioned four-fold tooling for assembling T-shaped magnetic core coils also includes a bidirectional auxiliary clamping mechanism. The bidirectional auxiliary clamping mechanism includes a top clamping die and a horizontal side clamping die. The top clamping die is mounted against the rear side of the four-fold die and is connected to the third upright plate via a fourth vertical lifting mechanism. The third vertical lifting mechanism is connected to the third upright plate via the fourth vertical lifting mechanism. After the top clamping die moves down, it can clamp the coil on the top horizontal section of the T-shaped magnetic core base plate. The horizontal side clamping die is mounted behind the third carrier positioning base and is connected to the third base via a third horizontal telescopic drive mechanism. A third through hole is provided on the middle side of the bottom of the third upright plate. The third front and rear telescopic drive mechanism can pass through the third through hole. After the horizontal side clamping die extends forward, it can clamp the coil attached to the surface of the T-shaped magnetic core base plate.

[0009] Furthermore, the aforementioned fourth vertical lifting mechanism includes a four-fold vertical sliding plate, a four-fold vertical slider guide rail pair, and a four-fold vertical telescopic cylinder. The front end face of the four-fold vertical sliding plate is horizontally and laterally fixed to a lifting horizontal plate, and the rear side is connected to the third upright plate through the vertical four-fold vertical slider guide rail pair. The top middle part of the four-fold vertical sliding plate is connected to the cylinder rod of the four-fold vertical telescopic cylinder, and the cylinder seat of the four-fold vertical telescopic cylinder is fixedly connected to the top of the third upright plate through the third cantilever seat.

[0010] Furthermore, the cylinder rod of the aforementioned four-fold vertical telescopic cylinder is fixedly connected to a third adapter. The third adapter is provided with a second T-shaped head near the bottom. The end face of the four-fold vertical sliding plate is provided with a second T-shaped through hole that is open at both the front and back. The second T-shaped head is inserted into the second T-shaped through hole. A reinforcing rib is connected between the four-fold vertical sliding plate and the lifting horizontal plate.

[0011] Furthermore, the bottom of the aforementioned top pressing die is provided with multiple pairs of top four-fold pressing blades at evenly spaced horizontal intervals. The length of the top four-fold pressing blades is greater than the length of the four-fold blades. The front end of the horizontal side pressing die is provided with multiple pairs of horizontal four-fold pressing blades at evenly spaced horizontal intervals. Each pair of horizontal four-fold pressing blades can extend into two third clearance grooves and two limit positioning grooves to press the two free ends of a coil into contact. A horizontal pressing connecting plate is provided on the top rear side of the horizontal side pressing die. The horizontal pressing connecting plate is fixedly connected to the third front and rear telescopic drive mechanism.

[0012] Furthermore, the aforementioned third forward and backward telescopic drive mechanism includes a third pusher, a third cylinder, and a third slider guide pair. The overall length of the third pusher after being fixedly connected to the horizontal side pressing die is less than the width of the third through hole. A horizontal third connecting plate is provided on the rear side of the third pusher. The third connecting plate is connected to the third base through the third slider guide pair. The rear side of the third connecting plate is fixedly connected to the cylinder rod of the third cylinder. The cylinder seat of the third cylinder is fixedly connected to the third cylinder mounting plate. The third cylinder mounting plate is fixedly connected to the rear side of the third base. The third cylinder pushes the third pusher to move back and forth, thereby causing the horizontal side pressing die to move back and forth and pressing the coil to the outer end face of the T-shaped magnetic base plate.

[0013] Furthermore, the width of the aforementioned four-fold blade decreases from top to bottom, while the rear side remains vertical. The opposite side of the vertical side includes a first horizontal surface, a ramp surface, and a third horizontal surface arranged sequentially. The length of the third horizontal surface is greater than the distance from the surface of the carrier after the free end of the clamping coil is attached to the inner side of the T-shaped magnetic core base plate.

[0014] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model uses a four-fold die to push the free end of the coil under the positioning action of the carrier, which can realize the downward bending of the horizontally facing free end of the coil (the short end with the triangular short end, the side of the triangular ramp facing the cylindrical part of the T-shaped magnetic core) and can fit into the upper inner side of the bottom plate of the T-shaped magnetic core. This four-fold tooling can quickly realize four bends of the free end of the coil, greatly improving the bending efficiency, making the bending stable and accurate, and the assembly efficiency high. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a four-fold tooling for assembling T-type magnetic core coils; Figure 2 This is a side view of a four-fold tooling structure used for assembling T-type magnetic core coils; Figure 3 This is a front view schematic diagram of a four-fold tooling for assembling T-type magnetic core coils; Figure 4 This is a front view of a four-fold tooling for assembling T-type magnetic core coils (excluding the four-fold die and its lifting mechanism). Figure 5 This is a schematic diagram illustrating the principle of four bends; Figure 6 This is a schematic diagram of the three-dimensional structure of the four-fold blade. Figure 7 This is a side view of the four-fold blade structure. Figure 8 This is a three-dimensional structural diagram of the top-pressing die; Figure 9 This is a schematic diagram of the three-dimensional structure of a horizontally pressed die.

[0016] Figure 10 This is a three-dimensional structural diagram of the positioning base of the third vehicle; Figure 11 This is a top view of the third vehicle positioning base. Figure 12 This is a front view structural diagram of the third vehicle positioning base; Figure 13 It is a three-dimensional structural diagram of the vehicle; Figure 14 This is a schematic diagram of the cross-sectional structure of the vehicle; Figure 15 It is a schematic diagram of the three-dimensional structure of the strip-shaped main body; Figure 16 This is a top view of the strip-shaped main body. Figure 17 This is a side view of the vehicle's structure. Figure 18 This is a schematic diagram showing the changes of a T-shaped magnetic core coil after two and three bends; Figure 19 This is a schematic diagram of the three-dimensional structure of the assembled T-shaped magnetic core coil. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1: As Figure 1-19As shown, a four-fold fixture 4 for assembling T-shaped magnetic core coils includes a third base 401, a third carrier positioning base 402, and a four-fold die 403. The third carrier positioning base 402 is mounted on the third base 401, and a horizontal carrier 1 is mounted on the third carrier positioning base 402. A T-shaped magnetic core coil 5 after three bends is placed on the carrier 1. A third transverse groove 4021 for embedding the carrier 1 is provided on the upper side of the third carrier positioning base 402. The positioning base 402 has third positioning base stepped holes 4023 at both ends. The third positioning base stepped holes 4023 are fixedly connected to the third base 401 by screws. The bottom plate end face of the T-shaped magnetic core 501 of the T-shaped magnetic core coil 5 abuts against the rear wall plate of the third transverse groove 4021. The free end of the coil 502 of the T-shaped magnetic core coil 5 is located at the top and faces forward horizontally. The rear wall plate of the third transverse groove 4021 is provided with two third clearance recesses facing each free end of the coil 502. Groove 4022, the two third clearance grooves 4022 extend downward by a distance of one, the distance one is sufficient to allow the horizontal clamping blade to extend into the clamping coil and fit against the outer end face of the T-shaped magnetic core 501 base plate. A four-fold die 403 is installed directly above the third carrier positioning base 402. The four-fold die 403 is connected to the third upright plate 404 through the third vertical lifting mechanism. After the four-fold die 403 descends, it can bend the free end of the horizontal coil 502 into a vertical downward fit against the inner surface of the T-shaped magnetic core 501 base plate. On the other hand, the lower end of the third upright plate 404 is fixedly connected to the third base 401. Through the four-fold die, the free end of the coil is pushed by the positioning action of the carrier, which can realize the downward bending of the horizontally forward coil free end (the short end with the triangular short end, the side of the triangular ramp facing the cylindrical part of the T-shaped magnetic core) and can fit the upper inner side of the bottom plate of the T-shaped magnetic core. This four-fold tooling can quickly realize four bends of the free end of the coil, greatly improving the bending efficiency, making the bending stable and accurate, and the assembly efficiency high.

[0019] The carrier 1 includes a strip-shaped body 101 and a limiting pad 102. A square-section through-hole 103 is formed in the middle of the strip-shaped body 101 along its length. Multiple embedding slots 104 for placing the T-shaped magnetic core coil 5 are provided on the top surface of the strip-shaped body 101 along its length. The embedding slots 104 are connected to the square-section through-hole 103. Four symmetrical limiting and positioning slots 105 for bending the two free ends of the coil 502 are provided on both sides of the embedding slots 104 along the length of the strip-shaped body 101, and are directly opposite a third clearance groove 3022 of the same width. The limiting and positioning slots 105 are vertical through-slots, extending a depth L into the embedding slot 104 on the side closest to the vertical through-hole. The depth L is the coil thickness. The limiting pad 102 is a strip-shaped structure that is movably embedded into the square-section through-hole 103, maintaining a clearance fit on both sides. Multiple energy-saving features are provided along the length of the limiting pad 102. The positioning through hole 106 is directly opposite the embedding slot 104. The positioning through hole 106 can be embedded into the cylindrical part of the T-shaped magnetic core 501 for positioning. The strip body 101 has multiple fixing step holes 107 on its side along its length direction. After the fastening screw 108 passes through the fixing step hole 107 laterally, it is fixedly connected to the side of the limiting pad 102, and the head of the fastening screw 108 does not protrude from the fixing step hole 107. The fixing step hole 107 is a vertical strip-shaped through hole. Each fixing step hole 107 is arranged between two adjacent limiting positioning slots 105. The limiting pad 102 can be positioned and fixed in a set position by the fastening screw 108 and the fixing step hole 107. The carrier is provided with multiple embedding slots, which can store multiple T-shaped magnetic core coils at one time, realize batch processing, and facilitate the use of tooling for one-fold cutting, four-fold, three-fold and four-fold cutting, thereby improving assembly quality and accuracy.

[0020] Specifically, one end of the aforementioned limiting pad 102 extends out of the square cross-section through hole to form a handle 109, which facilitates the pulling of the limiting pad; the bottom of the aforementioned strip-shaped main body 101 is provided with a clearance hole 110 that can be directly aligned with the positioning through hole. The diameter of the clearance hole 110 is 0.5-1mm larger than the positioning through hole. On the one hand, the clearance hole can prevent the cylindrical part of the T-shaped magnetic core from being damaged by the blockage. On the other hand, the clearance hole also facilitates the unloading of the assembled T-shaped magnetic core. The four-fold die 403 includes a four-fold die body 4031, a die body connecting plate 4032 on the top of the four-fold die body 4031, and a die body connecting plate 4032 fixedly connected to the four-fold die body base 4033 by screws. The die body connecting plate 4032 has a die body mounting hole 4035 through which the screws pass, which is a vertical strip hole to facilitate the adjustment of the front and rear position of the four-fold die body, thereby matching the optimal bending and forming of the free end of the four-fold bending coil. The four-fold die body base 4033 is connected to the third vertical plate 404 through a third vertical lifting mechanism. 1. Multiple pairs of four-fold blades 4034 are evenly spaced horizontally at the bottom. Each pair of four-fold blades 4034 can extend into two third clearance grooves 4022 and limit positioning grooves 105 and push the two free ends of a coil 502 downward to bend to a vertical position and fit against the inner end face of the T-shaped magnetic core 501 base plate. By using multiple pairs of four-fold blades 4034, batch bending can be achieved. A U-shaped notch 4039 is provided in the front part of the middle of the blade body connecting plate 4032 to avoid interference at the connection between the four-fold vertical telescopic cylinder 407 and the four-fold blade body seat 4033.

[0021] Specifically, the third vertical lifting mechanism includes vertical guide rods 405, linear bearings 406, and a four-fold vertical telescopic cylinder 407. Two vertical guide rods 405 are symmetrically fixedly connected to the upper side of the four-fold cutter body seat 4033. The two vertical guide rods 405 are fixedly connected to the lifting horizontal plate 408 through two linear bearings 406. The cylinder rod of the four-fold vertical telescopic cylinder 407 is fixedly connected to the four-fold cutter body seat 4033, and the cylinder seat of the four-fold vertical telescopic cylinder 407 is fixedly connected to the middle of the top side of the lifting horizontal plate 408. The four-fold vertical telescopic cylinder drives the four-fold cutter body seat 4033 to move vertically along the vertical guide rods 405 and linear bearings 406. The directional movement is highly accurate, and the lifting is fast and stable.

[0022] A four-fold tooling for assembling T-shaped magnetic core coils also includes a bidirectional auxiliary clamping mechanism. This mechanism includes a top clamping die 409 and a horizontal side clamping die 410. The top clamping die 409 is mounted against the rear side of the four-fold die 403 and is fixedly connected to a lifting horizontal plate 408. The lifting horizontal plate 408 is connected to a third vertical plate 404 via a fourth vertical lifting mechanism. The third vertical lifting mechanism is connected to the third vertical plate 404 via a fourth vertical lifting mechanism. After the top clamping die 409 moves downward, it can clamp the coil 502 at the top horizontal section of the T-shaped magnetic core 501 base plate. The horizontal side clamping die 410 is installed behind the third carrier positioning base 402. 410 is connected to the third base 401 via the third horizontal telescopic drive mechanism. The third vertical plate 404 has a third through hole 411 at the bottom center. The third front and rear telescopic drive mechanism can pass through the third through hole 411. After the horizontal side pressing die 410 extends forward, it can press the coil 502 that is attached to the surface of the T-shaped magnetic core base plate 501. The top pressing die and the horizontal side pressing die are used to press the coil on the top horizontal section of the T-shaped magnetic core 501 base plate and the coil 502 that is attached to the surface of the T-shaped magnetic core base plate 501, ensuring the stability of the four bends. This can improve the fit between the T-shaped magnetic core base plate and the free end of the coil, avoid the coil from loosening during the second and third bends, and improve the quality and accuracy of the four bends of the T-shaped magnetic core coil.

[0023] Specifically, the top clamping die 409 has multiple pairs of top four-fold clamping blades 4091 evenly spaced laterally at its bottom. The length of the top four-fold clamping blades 4091 is greater than the length of the four-fold blades 4034 and they are aligned with each other with the same width, enabling batch clamping. The top of the top clamping die 409 has multiple threaded connection holes. The front of the horizontal side clamping die 410 has multiple pairs of horizontal four-fold clamping blades 4101 evenly spaced laterally. Each pair of horizontal four-fold clamping blades 4101 can extend into two third clearance grooves 4022 and two limit positioning grooves 105 to clamp the two free ends of a coil 502. The rear top of the horizontal side clamping die 410 has a horizontal clamping connecting plate 4102, which is fixedly connected to the third front and rear telescopic drive mechanism. The use of the horizontal clamping connecting plate allows for quick connection and enables the blades to be lowered during the pushing process, making the equipment more compact.

[0024] Specifically, the fourth vertical lifting mechanism includes a four-fold vertical sliding plate 412, a four-fold vertical slider guide rail pair 413, and a four-fold vertical telescopic cylinder 414. The front end of the four-fold vertical sliding plate 412 is horizontally and laterally fixedly connected to the lifting horizontal plate 408, and the rear side is connected to the third upright plate 404 through the vertical four-fold vertical slider guide rail pair 413. The top middle of the four-fold vertical sliding plate 412 is connected to the cylinder rod of the four-fold vertical telescopic cylinder 414. The cylinder seat of the four-fold vertical telescopic cylinder 414 is fixedly connected to the top of the third upright plate 404 through the third cantilever seat 415. The vertical telescopic cylinder 414 drives the vertical sliding plate 412 to move up and down along the four-fold vertical slider guide rail pair, which has high guiding accuracy, reliable and stable bending and pressing, and is pneumatically driven, resulting in fast and stable lifting.

[0025] Specifically, the cylinder rod of the four-fold vertical telescopic cylinder 414 is fixedly connected to the third adapter 416. The third adapter 416 is provided with a second T-shaped head 417 near the bottom. The end face of the four-fold vertical sliding plate 412 is provided with a second T-shaped through hole 418 that is open at both ends. The second T-shaped head 417 is inserted into the second T-shaped through hole 418 to achieve vertical limiting connection. By using the T-shaped head and T-shaped through hole connection, only vertical limiting is required to achieve directional and stable movement of the four-fold vertical sliding plate. A reinforcing rib 419 is connected between the four-fold vertical sliding plate 412 and the lifting horizontal plate 408. The setting of the reinforcing rib can improve the stability of the four-fold blade holder of the bending power.

[0026] Specifically, the third telescopic drive mechanism includes a third push head 420, a third cylinder 421, and a third slider guide pair 422. The third push head 420 is fixedly connected to the horizontal side of the die-clamping mold 410 via screws; its overall length is less than the width of the third through hole 411. A horizontal third connecting plate 423 is provided at the rear of the third push head 420. The third connecting plate 423 is connected to the third base 401 via the third slider guide pair 422. The rear of the third connecting plate 423 is fixedly connected to the cylinder rod of the third cylinder 421. The third cylinder 421... The cylinder seat of cylinder 1 is fixedly connected to the third cylinder mounting plate 424. The third cylinder mounting plate 424 is fixedly connected to the rear side of the third base 401. The third cylinder 421 pushes the third push head 420 to move back and forth, thereby causing the horizontal side pressing die 410 to move back and forth and pressing the coil 502 to the outer end face of the T-shaped magnet 501 base plate. The third cylinder 421 drives the third push head to move back and forth along the horizontal third slider guide pair 422, which has high guiding accuracy and reliable and stable pressing. It is pneumatically driven and moves back and forth quickly and stably.

[0027] Specifically, the four-fold blade 4034 has a decreasing width from top to bottom and remains vertical at the rear. The opposite side of the vertical side includes a first horizontal surface 4036, a ramp surface 4037, and a third horizontal surface 4038 arranged sequentially. The length of the third horizontal surface 4038 is greater than the distance from the surface of the carrier 1 after the free end of the clamping coil 502 is attached to the inner side of the T-shaped magnetic core 501 base plate. This structure can ensure that the four-fold clamping blade bends the coil and clamps the coil to the side of the T-shaped magnetic core base plate while avoiding interference with other components. Moreover, the four-fold clamping blade of this structure is larger at the top and smaller at the bottom, resulting in high clamping stability.

[0028] Example 2: An operation method for a four-fold tooling for assembling T-shaped magnetic core coils. The method involves placing the carrier containing the three-fold bent T-shaped magnetic core coil into the third horizontal groove, ensuring the insertion groove faces backward, and ensuring the free end of the T-shaped magnetic core coil is at the top facing forward, with the bottom plate of the T-shaped magnetic core facing inward. The third forward and backward telescopic drive mechanism is activated to control the horizontal side-pressing die to press the coil against the outer side of the bottom plate of the T-shaped magnetic core. Then, the fourth vertical lifting mechanism is activated to control the top-pressing die to press the coil against the fixed side of the bottom plate of the T-shaped magnetic core. Finally, the third vertical lifting mechanism is activated to control the four-fold die to move downward, bending the two free ends of the forward-facing coil downward to a vertical position, thus pressing the coil against the inner side of the T-shaped magnetic core and maintaining contact. This completes the second and third bending of the T-shaped magnetic core coil. The three die exit processes are reversed.

[0029] The system comprises a third base 301, a third carrier positioning base 302, a four-fold die 303, and a three-fold die 304. The third base 301 is equipped with the third carrier positioning base 302, on which a horizontal carrier 1 is mounted. A T-shaped magnetic core coil 5, cut in one fold, is placed on the carrier 1. The third carrier positioning base 302 has a third transverse groove 3021 on its upper side, which is embedded into the carrier 1. The first carrier positioning base 202 has third positioning base stepped holes 3023 at both ends, which are fixedly connected to the third base 301 by screws. The bottom plate end face of the T-shaped magnetic core 501 of the T-shaped magnetic core coil 5 abuts against the third transverse groove. On the rear wall of the groove 3021, the free end of the coil 502 of the T-shaped magnetic core coil 5 faces horizontally backward. The rear wall of the third transverse groove 3021 is provided with two third clearance grooves 3022 embedded in the free end of each coil 502. The two third clearance grooves 3022 extend downward by a distance one and inward by a distance two. Distance one accommodates the length after the free end of the coil 502 is bent vertically downward twice, and distance two accommodates the length after the free end of the coil is bent horizontally inward three times. A four-fold die 303 is installed directly above the third carrier positioning base 302. The four-fold die 303 is connected to the third upright plate 305 via a third vertical lifting mechanism. After lowering, the free ends of the horizontally rearward-facing coil 502 can be bent vertically downwards to fit against the surface of the T-shaped magnetic core 501 base plate and press against the top horizontal section of the T-shaped magnetic core 501 base plate. The lower end of the third upright plate 305 is fixedly connected to the third base 301. A three-fold die 304 is installed behind the third carrier positioning base 302. The three-fold die 304 is connected to the third base 301 through a third horizontal telescopic drive mechanism. A third through hole 306 is provided on the bottom middle side of the third upright plate 305. The third front-rear telescopic drive mechanism can pass through the third through hole 306. After the three-fold die 304 extends forward, it can bend the two free ends of the coil 501, which is folded four times downwards, forwards to a horizontal position and press against the coil. The T-shaped magnetic core base plate is attached to the surface. By using a four-fold die to push the free end of the coil under the positioning action of the third carrier positioning base and the carrier, the horizontally rearward free end of the coil can be bent downward and attached to the upper side and the outward large end face of the T-shaped magnetic core base plate. After bending, the free end of the coil is moved forward by a three-fold die, bending the facing free end of the coil forward and attaching it to the lower side of the T-shaped magnetic core base plate. This four-fold and three-fold tooling can integrate the third bending and the third bending process into one machine to quickly realize the second and third bending of the free end of the coil, greatly improving bending efficiency, bending stability and precision, high assembly efficiency, and reducing the cost caused by independent process equipment.

[0030] The carrier 1 includes a strip-shaped body 101 and a limiting pad 102. A square-section through-hole 103 is formed in the middle of the strip-shaped body 101 along its length. Multiple embedding slots 104 for placing the T-shaped magnetic core coil 5 are provided on the top surface of the strip-shaped body 101 along its length. The embedding slots 104 are connected to the square-section through-hole 103. Four symmetrical limiting and positioning slots 105 for bending the two free ends of the coil 502 are provided on both sides of the embedding slots 104 along the length of the strip-shaped body 101, and are directly opposite a third clearance groove 3022 of the same width. The limiting and positioning slots 105 are vertical through-slots, extending a depth L into the embedding slot 104 on the side closest to the vertical through-hole. The depth L is the coil thickness. The limiting pad 102 is a strip-shaped structure that is movably embedded into the square-section through-hole 103, maintaining a clearance fit on both sides. Multiple energy-saving features are provided along the length of the limiting pad 102. The positioning through hole 106 is directly opposite the embedding slot 104. The positioning through hole 106 can be embedded into the cylindrical part of the T-shaped magnetic core 501 for positioning. The strip body 101 has multiple fixing step holes 107 on its side along its length direction. After the fastening screw 108 passes through the fixing step hole 107 laterally, it is fixedly connected to the side of the limiting pad 102, and the head of the fastening screw 108 does not protrude from the fixing step hole 107. The fixing step hole 107 is a vertical strip-shaped through hole. Each fixing step hole 107 is arranged between two adjacent limiting positioning slots 105. The limiting pad 102 can be positioned and fixed in a set position by the fastening screw 108 and the fixing step hole 107. The carrier is provided with multiple embedding slots, which can store multiple T-shaped magnetic core coils at one time, realize batch processing, and facilitate the use of tooling for one-fold cutting, four-fold, three-fold and four-fold cutting, thereby improving assembly quality and accuracy.

[0031] Specifically, one end of the aforementioned limiting pad 102 extends out of the square cross-section through hole to form a handle 109, which facilitates the pulling of the limiting pad; the bottom of the aforementioned strip-shaped main body 101 is provided with a clearance hole 110 that can be directly aligned with the positioning through hole. The diameter of the clearance hole 110 is 0.5-1mm larger than the positioning through hole. On the one hand, the clearance hole can prevent the cylindrical part of the T-shaped magnetic core from being damaged by the blockage. On the other hand, the clearance hole also facilitates the unloading of the assembled T-shaped magnetic core. The four-fold die 303 includes a four-fold die body 3031 and a four-fold clamping die 3032. The four-fold clamping die 3032 is fixedly connected to the front side of the four-fold die body 3031 by screws. The back of the four-fold clamping die 3032 is provided with an inlay positioning groove 30325, which is engaged with the front side of the four-fold die body 3031 for precise positioning. The mounting hole 3026 through which the screw passes on the four-fold clamping die 3032 is a vertical strip hole. The inlay positioning groove 30325 and the vertical... The mounting hole 3026 of the strip-shaped hole allows for directional adjustment, facilitating the optimal second bending state when the four-fold clamping knife 3032 and the four-fold knife body 3031 are engaged. The four-fold knife body 3031 is fixedly connected to the four-fold knife body base 3033, which is connected to the third vertical plate 305 via a third vertical lifting mechanism. Multiple pairs of four-fold blades 30311 are evenly spaced laterally at the bottom of the four-fold knife body 3031, with each pair of blades 30311 capable of extending into two... After the third clearance groove 3022 and the limiting positioning groove 105 are pushed, the two free ends of a coil are bent downwards along the third clearance groove 3022 and the limiting positioning groove 105 to a vertical position and fit against the end face of the bottom plate of the T-shaped magnetic core 501. The bottom of the four-fold clamping blade 3032 is horizontally spaced with multiple pairs of four-fold clamping blades 30311 and directly opposite multiple pairs of four-fold clamping blades 30321. The length of the four-fold clamping blade 30321 is less than the length of the four-fold clamping blade 30311 by at least one T-shaped magnetic core. The distance between the base plate 501 and each pair of four-fold clamping blades 30321 can extend into the two third clearance grooves 3022 and the limiting positioning groove 105 to clamp the two free ends of a coil 502 tightly against the side of the T-shaped magnetic core 501 base plate. The four-fold tool adopts an integrated tool with added four-fold clamping blades, which can ensure that the coil at the starting position of the bend is stably attached to the upper end face of the base plate while the second bend is performed. The second bend is fast and accurate, which greatly improves the assembly efficiency and assembly quality of the T-shaped magnetic core coil. Specifically, the width of the four-fold clamping blade 30321 decreases from top to bottom, and it adheres to the four-fold blade 30311 to maintain verticality. The opposite side of the vertical side includes a first horizontal surface 30322, a ramp surface 30323, and a third horizontal surface 30324 arranged in sequence. The length of the third horizontal surface 30324 is greater than the distance from the surface of the carrier 1 after the free end of the clamping coil 502 adheres to the side of the T-shaped magnetic core 501 base plate. This ensures that the four-fold clamping blade clamps the coil to the side of the T-shaped magnetic core base plate while avoiding interference with other components. Moreover, the four-fold clamping blade of this structure is larger at the top and smaller at the bottom, resulting in high clamping stability.

[0032] Specifically, the third vertical lifting mechanism includes a four-fold vertical sliding plate 307, a four-fold vertical slider guide rail pair 308, and a four-fold vertical telescopic cylinder 309. The front end of the four-fold vertical sliding plate 307 is horizontally and laterally fixedly connected to a four-fold blade seat 3033. The rear side is connected to the third upright plate 305 via the vertical four-fold vertical slider guide rail pair 308. The top center of the four-fold vertical sliding plate 307 is connected to the cylinder rod of the four-fold vertical telescopic cylinder 309. The cylinder seat of the four-fold vertical telescopic cylinder 309 is fixedly connected to the top of the third upright plate 305 via a third cantilever seat 310. The four-fold vertical telescopic cylinder pushes the four-fold vertical sliding plate to move directionally along the four-fold vertical slider guide rail pair. It features high precision, rapid lifting, pneumatic power, and stable stamping. Specifically, the cylinder rod of the four-fold vertical telescopic cylinder 309 is fixedly connected to the third adapter 311. The third adapter 311 has a third annular groove 312 near the bottom to form a T-shaped head. The end face of the four-fold vertical sliding plate 307 has a T-shaped through hole 313 that is open at both ends. The T-shaped head is inserted into the T-shaped through hole 313. By using the T-shaped head and the T-shaped through hole, only vertical limiting is required to achieve directional and stable movement of the four-fold vertical sliding plate. A reinforcing rib 314 is connected between the four-fold vertical sliding plate 307 and the four-fold cutter body seat 3033. The setting of the reinforcing rib can improve the stability of the four-fold cutter body seat under bending power.

[0033] The aforementioned three-fold die 304 includes a three-fold die body 3041. Multiple pairs of straight three-fold blades 3042 are evenly spaced laterally at the front end of the three-fold die body 3041. Each pair of three-fold blades 3042 can extend into two third clearance grooves 3022 and two limiting positioning grooves 105, pushing the two free ends of a coil forward along the third clearance grooves 3022 and the two limiting positioning grooves 105 to a horizontal position. A three-fold connecting plate 3043 is provided at the top rear side of the three-fold die body 3041. The three-fold connecting plate 3043 is fixedly connected to the third clearance groove 3041 by screws. On the third pusher 315 of the retraction drive mechanism, the three-fold blade body is driven forward by the third front and rear telescopic drive mechanism. Each pair of three-fold blades bends and presses the free end of the coil 502 to fit against the side of the T-shaped magnetic core base plate, realizing fast and accurate three-fold bending with high bending efficiency, improving the assembly efficiency and quality of the T-shaped magnetic core coil. The screw mounting hole 3044 of the three-fold connecting plate 3043 through which the screw passes is a vertical strip hole, which facilitates the height adjustment of the three-fold blades, thereby realizing accurate three-fold bending and the free end of the coil can fit against the bottom of the T-shaped magnetic core 501 base plate.

[0034] Specifically, the third forward and backward telescopic drive mechanism includes a third pusher 315, a third cylinder 316, and a third slider guide pair 317. The overall length of the third pusher 315 after being fixedly connected to the three-fold cutter body 3041 is less than the width of the third through hole 306. A horizontal third connecting plate 318 is provided on the rear side of the third pusher 315. The third connecting plate 318 is connected to the third base 301 through the third slider guide pair 317. The rear side of the third connecting plate 318 is fixedly connected to the cylinder rod of the third cylinder 316. The cylinder seat of the third cylinder 316 is fixedly connected to the third cylinder mounting plate 319. The third cylinder mounting plate 319 is fixedly connected to the rear side of the third base 301. The third cylinder 316 pushes the third pusher 315 to move back and forth, thereby driving the three-fold cutter 304 to move back and forth. The third cylinder pushes the slider guide pair to achieve horizontal directional movement, which is fast and stable, ensuring that the three-fold cutter body moves forward stably, realizing the three-fold bending of the free end of the coil, and ensuring the bending quality.

[0035] The operation method of the four-fold tooling for assembling T-shaped magnetic core coils is as follows: Place the carrier containing the T-shaped magnetic core coil after its first bending and cutting into the third horizontal groove, ensuring the insertion groove faces backward. Ensure the free end of the T-shaped magnetic core coil is inserted into the third clearance groove with the bottom plate of the T-shaped magnetic core facing inward. Activate the third vertical lifting mechanism to control the four-fold die to move downward, bending the two free ends of the coil facing backward to a vertical position, thus pressing the coil on the top side of the T-shaped magnetic core to maintain contact. Then, control the third horizontal telescopic drive mechanism to move the three-fold die forward, performing a third bend on the vertical free end of the coil after the second bend, ensuring it is in contact with the bottom side of the bottom plate of the T-shaped magnetic core, completing the second and third bends of the T-shaped magnetic core coil. Figure 18 As shown.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A four-fold tooling for assembling T-type magnetic core coils, characterized in that, The system includes a third base, a third carrier positioning base, and a four-fold die. The third carrier positioning base is mounted on the third base, and a horizontal carrier is mounted on the third carrier positioning base. A T-shaped magnetic core coil with three bends is placed on the carrier. A third transverse groove for embedding the carrier is provided on the upper side of the third carrier positioning base. The T-shaped magnetic core bottom plate end face of the T-shaped magnetic core coil abuts against the rear wall plate of the third transverse groove. The free end of the T-shaped magnetic core coil is located at the top and faces forward horizontally. The rear wall plate of the third transverse groove is provided with two third clearance grooves facing each free end of the coil. A four-fold die is mounted directly above the third carrier positioning base. The four-fold die is connected to the third upright plate through a third vertical lifting mechanism. After the four-fold die is lowered, it can bend the horizontal free end of the coil into a vertical downward fit against the inner surface of the T-shaped magnetic core bottom plate. The lower end of the third upright plate is fixedly connected to the third base.

2. The four-fold tooling for assembling T-type magnetic core coils according to claim 1, characterized in that, The carrier includes a strip-shaped main body and a limiting pad. A square-section through-hole is formed in the middle of the strip-shaped main body along its length. Multiple embedding slots for placing T-shaped magnetic core coils are provided on the top surface of the strip-shaped main body along its length. These embedding slots connect to the square-section through-hole. Along the sides of the embedding slots along the length of the strip-shaped main body, four symmetrical limiting and positioning slots are provided for bending the two free ends of the coil, directly opposite a first clearance groove of the same width and two third clearance grooves of the same width. The limiting and positioning slots are vertical through-slots, extending into the embedding slot to a depth L, where L is the coil thickness. The limiting pad is a strip-shaped structure and is movable. The limiting pad has multiple positioning through holes along its length that can be aligned with the embedding groove, and the positioning through holes can be embedded into the cylindrical part of the T-shaped magnetic core for positioning. The strip body has multiple fixing step holes along its length. After the fixing step holes are passed horizontally through the fixing step holes, the fixing pad is fixedly connected to the side of the limiting pad, and the head of the fixing screw does not protrude from the fixing step hole. The fixing step hole is a vertical strip-shaped through hole. Each fixing step hole is arranged between two adjacent limiting positioning grooves. The limiting pad can be positioned and fixed in the set position by the fixing screw and the fixing step hole.

3. A four-fold tooling for assembling T-type magnetic core coils according to claim 2, characterized in that, The four-fold die includes a four-fold die body, a die body connecting plate at the top of the die body, the die body connecting plate being fixedly connected to the four-fold die body base, the four-fold die body base being connected to the third vertical plate via a third vertical lifting mechanism, and multiple pairs of four-fold blades being evenly spaced laterally at the bottom of the four-fold die body. Each pair of four-fold blades can extend into two third clearance grooves and limit positioning grooves and push the two free ends of a coil downwards to a vertical position and fit against the inner end face of the T-shaped magnetic core base plate.

4. A four-fold tooling for assembling T-type magnetic core coils according to claim 3, characterized in that, The third vertical lifting mechanism includes vertical guide rods, linear bearings, and a four-fold vertical telescopic cylinder. Two vertical guide rods are symmetrically fixedly connected to the upper side of the four-fold cutter body seat. The two vertical guide rods are fixedly connected to the lifting horizontal plate through two linear bearings. The cylinder rod of the four-fold vertical telescopic cylinder is fixedly connected to the four-fold cutter body seat, and the cylinder seat of the four-fold vertical telescopic cylinder is fixedly connected to the middle of the top side of the lifting horizontal plate.

5. A four-fold tooling for assembling T-type magnetic core coils according to claim 4, characterized in that, It also includes a bidirectional auxiliary clamping mechanism, which includes a top clamping die and a horizontal side clamping die. The top clamping die is installed on the back of the four-fold die and is connected to the third upright plate through the fourth vertical lifting mechanism. The third vertical lifting mechanism is connected to the third upright plate through the fourth vertical lifting mechanism. After the top clamping die moves down, it can clamp the coil on the top horizontal section of the T-shaped magnetic core base plate. The horizontal side clamping die is installed behind the third carrier positioning base and is connected to the third base through the third horizontal telescopic drive mechanism. A third through hole is provided on the middle side of the bottom of the third upright plate. The third front and rear telescopic drive mechanism can pass through the third through hole. After the horizontal side clamping die extends forward, it can clamp the coil attached to the surface of the T-shaped magnetic core base plate.

6. A four-fold tooling for assembling T-type magnetic core coils according to claim 5, characterized in that, The fourth vertical lifting mechanism includes a four-fold vertical sliding plate, a four-fold vertical slider guide rail pair, and a four-fold vertical telescopic cylinder. The lifting horizontal plate is horizontally fixed to the front end of the four-fold vertical sliding plate, and the rear side is connected to the third upright plate through the vertical four-fold vertical slider guide rail pair. The cylinder rod of the four-fold vertical telescopic cylinder is connected to the middle of the top side of the four-fold vertical sliding plate, and the cylinder seat of the four-fold vertical telescopic cylinder is fixedly connected to the top of the third upright plate through the third cantilever seat.

7. A four-fold tooling for assembling T-type magnetic core coils according to claim 6, characterized in that, The cylinder rod of the four-fold vertical telescopic cylinder is fixedly connected to the third adapter. The third adapter has a second T-shaped head near the bottom. The end face of the four-fold vertical sliding plate has a second T-shaped through hole that is open at both the front and back. The second T-shaped head is inserted into the second T-shaped through hole. There is a reinforcing rib connecting the four-fold vertical sliding plate and the lifting horizontal plate.

8. A four-fold tooling for assembling T-type magnetic core coils according to claim 5, characterized in that, The bottom of the top clamping die is evenly spaced with multiple pairs of top four-fold clamping blades. The length of the top four-fold clamping blades is greater than the length of the four-fold blades. The front end of the horizontal side clamping die is evenly spaced with multiple pairs of horizontal four-fold clamping blades. Each pair of horizontal four-fold clamping blades can extend into two third clearance grooves and two limit positioning grooves to clamp the two free ends of a coil. The top of the rear side of the horizontal side clamping die is provided with a horizontal clamping connecting plate, which is fixedly connected to the third front and rear telescopic drive mechanism.

9. A four-fold tooling for assembling T-type magnetic core coils according to claim 5, characterized in that, The third forward and backward telescopic drive mechanism includes a third pusher, a third cylinder, and a third slider guide pair. The overall length of the third pusher after being fixedly connected to the horizontal side pressing die is less than the width of the third through hole. A horizontal third connecting plate is provided on the rear side of the third pusher. The third connecting plate is connected to the third base through the third slider guide pair. The rear side of the third connecting plate is fixedly connected to the cylinder rod of the third cylinder. The cylinder seat of the third cylinder is fixedly connected to the third cylinder mounting plate. The third cylinder mounting plate is fixedly connected to the rear side of the third base. The third cylinder pushes the third pusher to move back and forth, thereby causing the horizontal side pressing die to move back and forth and pressing the coil to the outer end face of the T-shaped magnetic base plate.

10. A four-fold tooling for assembling T-type magnetic core coils according to claim 3, characterized in that, The width of the four-fold blade decreases from top to bottom, and the rear side remains vertical. The opposite side of the vertical side includes a first horizontal surface, a ramp surface, and a third horizontal surface arranged in sequence. The length of the third horizontal surface is greater than the distance from the surface of the carrier after the free end of the clamping coil is attached to the inner side of the T-shaped magnetic core base plate.

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