Network transformer pin winding and wire winding equipment

Abstract

The utility model belongs to the technical field of pin winding and winding, and particularly relates to a pin winding and winding device of a network transformer, which is used for pin winding and winding of a plurality of transformers and punching and forming of pins of the transformers, and the pins of the plurality of transformers are connected to the same material belt, so that the plurality of transformers form a whole. Comprising a rack, a translation mechanism, a positioning clamp, a winding device and a punching device, the translation mechanism is arranged on the rack, the positioning clamp or the winding device is arranged at the moving end of the translation mechanism, and the positioning clamp is used for positioning a plurality of transformers and a material belt to form an integral component; the punching device is arranged on the rack and used for punching and bending the wound transformer. Due to the fact that the multiple transformers are arranged on the material belt, pin winding and wire winding of the multiple transformers can be completed. And each transformer does not need to be independently clamped, so that the clamping workload is reduced, and the efficiency is improved. And moreover, the pins of the transformer are formed by punching after winding is completed, so that the problems of interference and the like on the winding shaft during winding are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of foot-wrapping wire winding, and particularly relates to a foot-wrapping wire winding device for a network transformer. Background Technique

[0002] A network transformer, also known as an isolation transformer, is mainly applied to devices such as high-performance digital switches and SDH / ATM transmissions. A network transformer generally comprises a plastic shell, a coil assembly, patch pins, etc.; the patch pins are arranged on both sides of the plastic shell, and one end extends out from the top side of the plastic shell to form a foot for wire winding. Specifically, the plastic shell is injection-molded on the pins. A plurality of coil assemblies are placed in the plastic shell, and the wires of the coil assemblies need to be wound around the corresponding feet so that the wires are fixed on the feet.

[0003] Currently, when winding wires around the feet, there is either completely manual wire winding and foot wrapping or the use of automated equipment to achieve foot-wrapping wire winding. Among them, for manual wire winding, due to the small volume of the transformer, it is necessary for an operator to use tweezers to hold the wire and wind it around the foot for several turns, and then cut off the excess wire. And for each turn of manual winding, the wire needs to be straightened before winding the next turn, so the workload is very large and the efficiency is low.

[0004] The Chinese patent document with the publication number CN115331948A discloses a network transformer wire-wrapping machine and its wire-wrapping method, which solves the problems of low wire-wrapping efficiency and low production smoothness during the production of existing network transformers. The wire-wrapping method of a network transformer wire-wrapping machine includes the following steps: S1, Place the network transformer product to be wire-wrapped on the feeding conveyor line. The feeding conveyor line continuously conveys the network transformer product to the end of the feeding conveyor line and enters S2; S2, The incoming material handling mechanism transports the network transformer product to be wire-wrapped to the wire-wrapping linear motion module. The wire-wrapping linear motion module transports the network transformer product to the wire-wrapping mechanism. The wire-wrapping mechanism performs wire-wrapping on the network transformer product. After wire-wrapping is completed, the wire-wrapping linear motion module transports the wire-wrapped network transformer product to the end of the wire-wrapping linear motion module and enters S3; S3, After the incoming material handling mechanism transports the wire-wrapped network transformer product to the secondary clamping mechanism of the tail wire cleaning mechanism and clamps it, the tail wire cleaning mechanism breaks the excess tail wire on the pins of the wire-wrapped network transformer product and enters step S4; S4, The incoming material handling mechanism transports the network transformer product with the tail wire cleaned to the finished product sorting module. The finished product sorting module detects the network transformer product. If the detection result is unqualified, enter step S5. If the detection result is qualified, enter step S6; S5, The sub-line finished product handling mechanism places the unqualified network transformer product into the wire-wrapping defective storage box; S6, The sub-line base handling mechanism places the base plate on the finished product sorting module. The sub-line finished product handling mechanism places the qualified network transformer product on the base plate to complete the assembly and enters step S7; S7, The sub-line finished product collecting mechanism collects the assembled network transformer products to complete the wire-wrapping work of the network transformer products. By controlling the operation of each mechanism through the touch control screen, the feeding, wire-wrapping, tail wire cleaning, finished product sorting, and collecting work of the network transformer products are completed automatically, intelligently, and continuously, greatly improving the wire-wrapping efficiency of the network transformer products, reducing the product defect rate. At the same time, although each mechanism is interconnected, it operates independently. When the equipment fails, the corresponding faulty mechanism can be replaced or repaired, reducing the equipment maintenance cost.

[0005] According to the technical solution of the above patent document, when winding the transformer, a single transformer is positioned in the winding positioning fixture; thus, the winding of one transformer is completed at a time. Since the transformer skeleton is injection-molded on a strip of material with pins formed by stamping, after injection molding, the single transformer skeleton is punched out, and the pin bending of the transformer is completed. Therefore, according to the technical solution of the above patent document, the transformer skeleton is punched out first and then the winding is completed. Therefore, during the winding process, only one transformer can be clamped for winding at a time. This results in a large amount of clamping work and low efficiency. Utility Model Content

[0006] The purpose of the present utility model is to provide a network transformer leg winding device, which solves the problem that when winding the existing network transformer, a single transformer is positioned in a fixture for winding, resulting in low work efficiency.

[0007] To achieve the above object, a network transformer leg winding device provided by an embodiment of the present utility model is used for leg winding of multiple transformers and punching and forming of the pins of the transformers. The pins of multiple transformers are connected to the same tape, so that multiple transformers form an integral body; it includes: a frame, a translation mechanism, a positioning fixture, a winding device, and a punching device; the translation mechanism is arranged on the frame, the positioning fixture or the winding device is arranged on the mobile end of the translation mechanism, and the positioning fixture is used to position multiple transformers and the tape to form an integral component; the punching device is arranged on the frame and is used for punching and bending the wound transformers.

[0008] Further, the punching mechanism includes a support frame, a hydraulic cylinder, an upper die, and a lower die; the support frame is arranged on the frame, the hydraulic cylinder is arranged on the support frame, and the lower die is located at the bottom end of the upper die.

[0009] Further, the upper die includes an upper die base and an upper forming die; the upper die base is arranged at the bottom end of the hydraulic cylinder, two positioning plates extend downward from the upper die base, an installation groove is formed between the two positioning plates, and the upper forming die is arranged in the installation groove; two forming parts extend from the bottom side of the upper forming die, a forming cavity is arranged at the bottom side of the forming part, and the forming cavity makes a punching knife formed on one side of the forming part closer to the positioning plate, and a bending and forming part is formed on the other side; the bottom end of the punching knife is lower than the bottom end of the bending and forming part; an avoidance cavity is formed between the punching knife and the positioning plate, and an avoidance step is arranged on the bending and forming part for avoiding the plastic shell of the transformer;

[0010] The lower die includes a lower die base and two lower forming dies; a support boss extends upward from the lower die base, support protrusions also extend from both sides of the top of the support boss, and a second positioning groove is formed between the two support protrusions; the two lower forming dies are arranged on both sides of the support boss, and a groove is arranged at the top of the lower forming die for avoiding the punching knife; the groove makes a support plane and a bending plane formed on the top of the lower forming die, and the bending plane is closer to the support boss; the support protrusion is lower than the bending plane.

[0011] Further, the bending plane is lower than the support plane, so that the support plane supports the tape and the transformer is suspended in the second positioning groove; a limiting groove is formed between the two forming parts, an elastic pressing part is arranged in the limiting groove, and the bottom end of the elastic pressing part is lower than the bottom end of the forming part; a guiding inclined surface is arranged on the inner side of the punching knife.

[0012] Furthermore, the network transformer foot-winding device further includes a transfer mechanism and a transfer manipulator provided on the frame; the lower die is provided on the moving seat of the transfer mechanism; the transfer mechanism is used to drive the lower die to move to the bottom side of the upper die; the transfer manipulator is used to clamp the tape positioned in the positioning fixture and position it into the lower die.

[0013] Furthermore, the winding device includes a mounting frame, a lifting mechanism, a winding shaft and a rotation driving member; the mounting frame is provided on the frame, and the lifting mechanism is provided on the mounting frame; the winding shaft is provided at the bottom end of the lifting mechanism, and the rotation driving member is connected to the winding shaft for driving the winding shaft to rotate; a wire-pushing portion extends downward from the bottom end of the winding shaft, and the wire-pushing portion deviates from the axis of the winding shaft. When the rotation driving member drives the winding shaft to rotate, the wire-pushing portion rotates around the winding foot of the transformer, so that the wire-pushing portion pushes the wire to wind around the winding foot.

[0014] Furthermore, the winding device further includes a mounting plate and an elastic pressing assembly. The mounting plate is provided at the bottom end of the lifting mechanism; the elastic pressing assembly includes a pressing strip and a compression spring. Two guide shafts extend from the bottom end of the mounting plate, and both ends of the pressing strip are slidably connected to the two guide shafts. A limiting portion is provided at the bottom end of the guide shaft for limiting the pressing strip; the compression spring is sleeved on the guide shaft and abuts between the pressing strip and the mounting plate.

[0015] Furthermore, a support surface is provided on the side of the wire-pushing portion closer to the rotation axis, and the support surface extends obliquely downward from the upper end; the lifting mechanism is an electric screw rod mechanism.

[0016] Furthermore, the network transformer foot-winding device further includes a wire-cutting mechanism for cutting off the redundant residual wire of the pin before winding; the wire-cutting mechanism includes a support seat, a rotating seat, a cutting knife and a driving member; the support seat is provided on the frame, and two convex platforms extend from the support seat. A first positioning groove is formed between the two convex platforms; a fixed knife is provided outside the convex platform, and a cutting portion extending to the top of the convex platform is provided at the top of the fixed knife, and the cutting portion and the convex platform form a limiting groove; an installation portion is provided at one end of the support seat, and one end of the rotating seat is rotatably connected to the installation portion; the cutting knife is provided at the bottom side of the rotating seat, and two cutting edges extend from the bottom side of the cutting knife; the driving member is connected to the rotating seat for driving the rotating seat to rotate.

[0017] Furthermore, the tangent mechanism also includes two sets of pushing assemblies, which are arranged on both sides of the support seat; the pushing assembly includes a slide and a push cylinder; the slide is slidably connected to the support seat, and the push cylinder is connected to the slide to drive the slide to move; the fixed knife is provided with an inclined surface extending outward, and the slide is provided with a scraper that fits the inclined surface.

[0018] The above one or more technical solutions in the network transformer foot winding device provided by the embodiment of the utility model have at least the following technical effects:

[0019] 1. The staff can first pass the wire of the coil assembly through the side of the winding pin, or wrap it around the winding pin once; then position the material strip with multiple transformers as a whole in the positioning fixture. The translation mechanism drives the positioning fixture to move to the bottom of the winding device. The lifting mechanism drives the winding shaft to descend, so that the wire-digging part is located on one side of the winding pin, and the rotating drive drives the winding shaft to rotate. The rotating wire-digging part drives the end of the wire to rotate around the winding pin, so that the wire is wound around the pin. Since there are multiple transformers on the material strip, the winding of multiple transformers can be completed. There is no need for each transformer to be clamped separately, which reduces the workload of clamping and improves efficiency.

[0020] 2. After all transformers on the same strip are wound, the strip of the transformer can be positioned in the punching device, which punches out the transformers on the strip at one time and completes the bending of the pins at the same time. This can improve the efficiency of transformer forming. And because the pins of the transformer are punched and formed after winding, there will be no interference with the winding shaft during winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A structural diagram of a network transformer foot winding device provided in an embodiment of the utility model.

[0023] Figure 2 This is a structural diagram of the other side of the network transformer foot winding equipment provided in an embodiment of the utility model.

[0024] Figure 3 This is a structural diagram of a network transformer foot winding device provided in an embodiment of the utility model.

[0025] Figure 4 This is a structural diagram of the winding shaft part of the network transformer foot-wrapping winding device provided by an embodiment of the present utility model.

[0026] Figure 5 For Figure 4 Partial enlarged view.

[0027] Figure 6 This is a structural diagram of the punching device of the network transformer foot-wrapping winding equipment provided by an embodiment of the present utility model.

[0028] Figure 7 This is a structural diagram of the upper die of the punching device provided by an embodiment of the present utility model.

[0029] Figure 8 For Figure 7 Partial enlarged view.

[0030] Figure 9 This is a structural diagram of the lower die of the punching device provided by an embodiment of the present utility model.

[0031] Figure 10 This is a structural diagram of the upper die and the lower die of the punching device in the closed die state provided by an embodiment of the present utility model.

[0032] Figure 11 This is a structural diagram of the tangent mechanism of the network transformer foot-wrapping winding equipment provided by an embodiment of the present utility model.

[0033] Figure 12 This is a partial structural diagram of the tangent mechanism provided by an embodiment of the present utility model.

[0034] Figure 13 For Figure 12 Partial enlarged view.

[0035] Figure 14 This is a partial structural diagram of the driving part of the tangent mechanism provided by an embodiment of the present utility model.

[0036] Figure 15 This is a structural diagram of the tape provided by an embodiment of the present utility model. Detailed implementation manners

[0037] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as limiting the present utility model.

[0038] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0040] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0041] In an embodiment of the network transformer leg winding device of the present utility model, please refer to Figure 1 , Figure 2 , Figure 10 and Figure 15 , the network transformer leg winding device of this embodiment can complete the leg winding of multiple transformers 1. Among them, the pins of multiple transformers 1 are connected to the same tape 10, making multiple transformers 1 form a whole. Therefore, when winding the legs, the entire tape 10 can be positioned and clamped at one time, which can improve the clamping efficiency. And after the transformer 1 is wound, the transformers 1 on the entire tape 10 can be punched out at one time, and the pins of the transformers 1 can be bent and formed. Specifically, the network transformer leg winding device includes a network transformer leg winding device and a punching mechanism 800. Among them:

[0042] Please refer to Figures 1 to 3, the network transformer foot-winding device includes: a frame 100, a translation mechanism 200, a positioning fixture 300, and a winding device 400. The translation mechanism 200 is provided on the frame 100, and one of the winding device 400 or the positioning fixture 300 is arranged on the translation mechanism 200, and the other group can be arranged on the frame 100. Therefore, the positioning fixture 300 can move relative to the winding device 400. In this embodiment, the positioning fixture 300 is arranged at the mobile end of the translation mechanism 200, and the winding device 400 is arranged on the frame 100. The positioning fixture 300 is used to position the transformer 1. The translation mechanism 200 can be an electric screw linear module; a positioning pin is provided on the positioning fixture 300 to use the process positioning holes of the strip 10. Therefore, when the strip 10 is positioned on the positioning fixture 300, the positioning pin positions the positioning holes on the strip 10.

[0043] Please refer to Figures 4 to 5 , the winding device 400 includes a mounting frame 410, a lifting mechanism 420, a winding shaft 430, and a rotation driving member 440. The mounting frame 410 is arranged on the frame 100, and the lifting mechanism 420 is arranged on the mounting frame 410. The winding shaft 430 is arranged at the bottom end of the lifting mechanism 420, and the rotation driving member 440 is connected to the winding shaft 430 for driving the winding shaft 430 to rotate. A wire deflecting portion 431 extends downward from the bottom end of the winding shaft 430, and the wire deflecting portion 431 deviates from the axis of the winding shaft 430. The rotation driving member 440 rotates the winding shaft 430, and the wire deflecting portion 431 rotates around the winding foot of the transformer, so that the wire deflecting portion 431 deflects the wire to wind around the winding foot.

[0044] In the above embodiment, the wire of the coil assembly can be first passed through from one side of the winding pin by the staff, or wound around the winding pin for one turn. Then the strip 10 of the transformer 1 is integrally positioned in the positioning fixture 300. The translation mechanism 200 drives the positioning fixture 300 to move to the bottom end of the winding device 400. The lifting mechanism 420 drives the winding shaft 430 to descend, so that the wire deflecting portion 431 is located on one side of the winding pin. The rotation driving member 440 drives the winding shaft 430 to rotate, and the rotating wire deflecting portion 431 deflects the end of the wire to rotate around the winding pin, so that the wire winds around the pin. And every time a pin is wound, the translation mechanism 200 drives the positioning fixture 300 to move a certain distance. Since the wire is wound around the pin of the transformer 1 by the rotating wire deflecting portion 431, the problem that the wire is broken during winding can be effectively avoided. After all the transformers 1 on the strip 10 are wound, the strip 10 can be positioned in the punching mechanism 800, and the punching mechanism 800 punches out the transformers 1 on the strip 10 at one time and simultaneously completes the bending and forming of the pins. The efficiency is improved. Since the pins of the transformer are punched and formed after winding, there will be no interference problems with the winding shaft during winding.

[0045] Specifically, please refer to Figure 6 , the punching mechanism 800 includes a support frame 810, a hydraulic cylinder 820, an upper die 830 and a lower die 840. The support frame 810 is arranged on the frame 100, the hydraulic cylinder 820 is arranged on the support frame 810, and the upper die 830 is arranged at the bottom end of the hydraulic cylinder 820. The lower die 840 is arranged on the bottom side of the upper die 830. When punching and forming the pins of the transformer 1, the strip 10 rotates to the lower die 840, and the transfer mechanism 900 drives the lower die 840 to move to the bottom end of the upper die 830. The hydraulic cylinder 820 drives the upper die 830 to descend, and the upper die 830 and the lower die 840 are closed, so that the part connecting the pins of the transformer 1 and the strip 10 can be cut off, and the pins are bent and formed to form surface mount pins.

[0046] Further, please refer to Figure 3 , the winding device 400 further includes a mounting plate 450 and an elastic pressing assembly 460. The mounting plate 450 is arranged at the bottom end of the lifting mechanism 420. The elastic pressing assembly 460 includes a pressing strip 461 and a compression spring 462. Two guide shafts 451 extend from the bottom end of the mounting plate 450. The two ends of the pressing strip 461 are slidably connected to the two guide shafts 451. A limiting portion 452 is arranged at the bottom end of the guide shaft 451 for limiting the pressing strip 461. The compression spring 462 is sleeved on the guide shaft 451 and abuts between the pressing strip 461 and the mounting plate 450. In this embodiment, when the lifting mechanism 420 drives the winding shaft 430 to descend for winding, the pressing strip 461 presses on the top side of the strip 10 to fix the transformer 1, avoiding the problems of loosening or misalignment of the transformer 1 during the winding process.

[0047] Furthermore, referring to Figure 3 and Figure 4 , the number of winding shafts 430 is multiple groups and they are arranged on both sides of the pressing strip 461. Therefore, multiple pins of the transformer 1 can be wound simultaneously by multiple winding shafts 430, thus improving the efficiency. Still further, the winding shafts 430 are connected to the same rotation driving member 440. Then, the same rotation driving member 440 drives each winding shaft 430 to rotate simultaneously.

[0048] Further, please refer to Figure 5 , a support surface 432 is arranged on the side of the wire deflecting portion 431 closer to the rotation axis. The support surface 432 extends obliquely downward from the upper end, so that the lower end size of the wire deflecting portion 431 is larger than the upper end size. The lifting mechanism 420 is an electric screw rod mechanism. In this embodiment, during the winding process, the wire can be supported on the support surface 432. Therefore, when the lifting mechanism 420 gradually rises, it can drive the end of the wire to lift upward, realizing the wire to be wound around the pins orderly from bottom to top to ensure the winding effect.

[0049] Further, in order to achieve fully automated punching, the network transformer leg winding device of this embodiment further includes a transfer mechanism 900 and a transfer manipulator 1000. Please refer to FIGS. 1 and Figure 2 ; wherein, the lower die 840 is arranged at the moving end of the transfer mechanism 900. After the winding of the transformer 1 is completed, the transfer manipulator 1000 transfers the strip 10 in the clamping and positioning fixture 300 to the lower die 840; and the transfer mechanism 900 drives the lower die 840 to move to the bottom end of the upper die 830. Therefore, automated conveying can be achieved. The transfer mechanism 900 is an electric screw linear die holder.

[0050] Furthermore, please refer to Figures 7 to 10 ; a specific embodiment of the upper die 830 and the lower die 840 for punching the pins of the transformer 1 by closing the die. Specifically, the upper die 830 includes an upper die base 831 and an upper forming die 832; the upper die base 831 is arranged at the bottom end of the hydraulic cylinder 820, two positioning plates 833 extend downward from the upper die base 831, an installation groove is formed between the two positioning plates 833, and the upper forming die 832 is arranged in the installation groove. Two forming parts 834 extend from the bottom side of the upper forming die 832, a forming cavity 835 is arranged at the bottom side of the forming part 834, the forming cavity 835 makes a punching knife 836 formed on the side of the forming part 834 closer to the positioning plate 833, and a bending and forming part 837 is formed on the other side. The bottom end of the punching knife 836 is lower than the bottom end of the bending and forming part 837. An avoidance cavity 838 is formed between the punching knife 836 and the positioning plate 833, and an avoidance step 839 is arranged on the bending and forming part 837 for avoiding the plastic shell of the transformer 1.

[0051] The lower die 840 includes a lower die base 841 and two lower forming dies 842. A support boss 843 extends upward from the lower die base 841, support protrusions 844 also extend on both sides of the top of the support boss 843, and a second positioning groove 845 is formed between the two support protrusions 844. The two lower forming dies 842 are arranged on both sides of the support boss 843, and a groove 846 is arranged at the top of the lower forming die 842 for avoiding the punching knife 836; the groove 846 makes a support plane 847 and a bending plane 848 formed on the top of the lower forming die 842, and the bending plane 848 is closer to the support boss 843; the support protrusion 844 is lower than the bending plane 848.

[0052] In the above embodiment, when the transformer 1 is punched out from the strip 10, the transformer 1 in the strip 10 is positioned in the second positioning groove 845, and both sides of the strip 10 are supported on the support plane 847. When the upper die 830 and the lower die 840 are closed, the punching knife 836 cooperates with the edge of the support plane 847 to cut off the part where the pins of the transformer 1 are connected to the strip 10, so that each transformer 1 is separated from the strip. And under the cooperation of the forming cavity 835 and the bending plane 848, the pins are bent and formed, thus completing the punching and separation of the transformer from the strip, and at the same time completing the bending and forming of the pins, improving the efficiency.

[0053] Further, please refer to Figure 9 , the bending plane 848 is lower than the support plane 847, so that the support plane 847 supports the strip 10 and the transformer 1 is suspended in the second positioning groove 845. A limiting groove is formed between the two forming parts 834, and an elastic pressing part 801 is arranged in the limiting groove. The bottom end of the elastic pressing part 801 is lower than the bottom end of the forming part 834. A guiding inclined surface 802 is arranged on the inner side of the punching knife 836. In this embodiment, when the upper die 830 and the lower die 840 are closed, the bottom side of the elastic pressing part 801 first contacts the plastic shell part of the transformer 1 and simultaneously pushes the transformer 1 downward. During the downward movement, it will cause the pins supported on the support plane 847 to be bent upward, so that the pins of the transformer 1 are in an inclined state. When the punching knife 836 cooperates with the support plane 847 to cut off the pins, an inclined cut will be formed at the end of the pins. After the pins are cut off, the elastic pressing part 801 will continue to push the transformer 1 downward to the bottom of the second positioning groove 845. During the downward pressing process, the end of the pin will enter the forming cavity 835 along the guiding inclined surface 802. Under the extrusion of the forming cavity 835 and the bending plane 848, and the extrusion of the bending and forming part 837 and the support boss 843, the pins are bent and formed into patch pins, and can be welded to the circuit board by means of a patch process. Since an inclined cut is formed at the end of the pin, more solder can be accommodated during welding, so the welding stability between the transformer 1 and the circuit board can be increased.

[0054] Still further, refer to Figure 8 and Figure 10 , the elastic pressing part 801 includes a compression spring and a rubber block. The rubber block is connected to the compression spring, and the compression spring makes the rubber block generate a downward pressure.

[0055] Further, the network transformer winding and foot-wrapping device further includes a wire cutting mechanism 500 for cutting off the redundant residual wires of the pins before winding. Specifically, please refer to Figure 1 , Figure 2 and Figure 11; In order to facilitate the staff to pass the end of the wire through one side of the pin or wind the wire around the pin for one week, a certain length is set at the end of the wire to facilitate the operation. Therefore, when winding the wire, the excess part of the wire needs to be cut off to facilitate subsequent wire winding. Specifically, please refer to Figures 11 to 14 ; The wire cutting mechanism 500 of this embodiment includes a support base 510, a rotating base 520, a cutting knife 530 and a driving member 540. The support base 510 is arranged on the frame 100. Two bosses 511 extend from the support base 510, and a first positioning groove 512 is formed between the two bosses 511. Fixed knives 550 are arranged on the outer sides of the two bosses 511. A cutting part 551 extending to the top of the boss 511 is arranged at the top of the fixed knife 550, and the cutting part 551 and the boss 511 form a limiting groove 513, and the limiting groove 513 is used to limit the material tape 10 so that the material tape 10 is positioned in the first positioning groove 512. An installation part 514 is arranged at one end of the support base 510, and one end of the rotating base 520 is rotatably connected to the installation part 514. The cutting knife 530 is arranged on the bottom side of the rotating base 520, and two cutting edges 531 extend from the bottom side of the cutting knife 530. The driving member 540 is connected to the rotating base 520 and is used to drive the rotating base 520 to rotate. In this embodiment, after the staff winds the wire around the pin for one circle or passes it through from the corresponding side of the pin, the material tape can be positioned in the positioning groove 512, and the end of the wire is supported on the top layer of the fixed knife 550. Then, the driving member 540 drives the cutting knife 530 to rotate downward, and the cutting edge 531 cooperates with the cutting part 551, so that the excess wire can be cut off. Specifically, the driving member 540 can be a rotary cylinder, a motor, a hydraulic cylinder, etc.; it can also be a flat push cylinder. One end of the flat push cylinder is connected to the installation part 514, and the other end is connected to the rotating base 520. Therefore, the rotating base 520 can be pushed to flip by the flat push cylinder.

[0056] Further, refer to Figure 11 and Figure 12 ; The wire cutting mechanism 500 further includes two sets of wire pushing components 560, which are arranged on both sides of the support base 510; the wire pushing components 560 are used to clean the cut wire. Specifically, the wire pushing component 560 includes a sliding seat 561 and a flat push cylinder 562. The sliding seat 561 is slidably connected to the support base 510, and the flat push cylinder 562 is connected to the sliding seat 561 and is used to drive the sliding seat 561 to move. The fixed knife 550 is provided with an inclined surface 552 extending outward, and a scraping plate 563 fitting with the inclined surface 552 is arranged on the sliding seat 561. In this embodiment, the cut wire will fall on the inclined surface 552, and the flat push cylinder 562 drives the scraping plate 563 to translate along the inclined surface 552, so that the cut wire can be scraped off.

[0057] Further, please refer to Figure 11 and Figure 12One end of the support base 510 extends with a support plate 515, on which a guide base 516 is provided, and the guide base 516 is provided with a guide groove 517. The frame 100 is provided with a manipulator 600 and a pushing mechanism 700. The manipulator 600 is used to pick up the strip 10 on the conveying mechanism and place it into the guide groove 517, and the pushing mechanism 700 is used to push the strip 10 in the guide groove 517 to be conveyed into the first positioning groove 512.

[0058] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A network transformer foot winding equipment, used for foot winding of multiple transformers and punching and forming of transformer pins, wherein the pins of multiple transformers are connected to the same material strip, so that the multiple transformers form a whole; characterized in that: include: A frame, a translation mechanism, a positioning fixture, a winding device and a punching device; the translation mechanism is arranged on the frame, the positioning fixture or the winding device is arranged at the moving end of the translation mechanism, the positioning fixture is used to position multiple transformers and material strips to form an integral component; the punching device is arranged on the frame, and is used to punch and bend the transformer after winding.

2. The network transformer foot winding equipment according to claim 1 is characterized in that: The punching mechanism comprises a support frame, a hydraulic cylinder, an upper die and a lower die; the support frame is arranged on the frame, the hydraulic cylinder is arranged on the support frame, and the lower die is located at the bottom end of the upper die.

3. The network transformer foot winding equipment according to claim 2 is characterized in that: The upper die comprises an upper die seat and an upper forming die; the upper die seat is arranged at the bottom end of the hydraulic cylinder, two positioning plates are extended downward from the upper die seat, a mounting groove is formed between the two positioning plates, and the upper forming die is arranged in the mounting groove; two forming parts are extended from the bottom side of the upper forming die, a forming cavity is arranged on the bottom side of the forming part, and the forming cavity forms a punching knife on one side of the forming part closer to the positioning plate, and a bending forming part is formed on the other side; the bottom end of the punching knife is lower than the bottom end of the bending forming part; an air avoidance cavity is formed between the punching knife and the positioning plate, and the bending forming part is provided with an air avoidance step for avoiding the plastic shell of the transformer; The lower die comprises a lower die base and two lower forming dies; a supporting boss is extended upward from the lower die base, and supporting protrusions are extended on both sides of the top of the supporting boss, and a second positioning groove is formed between the two supporting protrusions; the two lower forming dies are arranged on both sides of the supporting boss, and a groove is provided on the top of the lower forming die for avoiding the punching knife; the groove enables the top of the lower forming die to form a supporting plane and a bending plane, and the bending plane is closer to the supporting boss; the supporting protrusion is lower than the bending plane.

4. The network transformer foot winding equipment according to claim 3 is characterized in that: The bending plane is lower than the supporting plane, so that the supporting plane supports the material strip and the transformer is suspended in the second positioning groove; a limiting groove is formed between the two forming parts, and an elastic pressing piece is provided in the limiting groove, and the bottom end of the elastic pressing piece is lower than the bottom end of the forming part; a guiding inclined surface is provided on the inner side of the punching knife.

5. The network transformer foot winding equipment according to any one of claims 2 to 4, characterized in that: It also includes a transfer mechanism and a transfer robot arranged on the frame; the lower mold is arranged on a movable seat of the transfer mechanism; the transfer mechanism is used to drive the lower mold to move to the bottom side of the upper mold; the transfer robot is used to clamp the material strip in the positioning fixture and position it in the lower mold.

6. The network transformer foot winding equipment according to claim 1 is characterized in that: The winding device includes a mounting frame, a lifting mechanism, a winding shaft and a rotating drive member; the mounting frame is arranged on the frame, and the lifting mechanism is arranged on the mounting frame; the winding shaft is arranged at the bottom end of the lifting mechanism, and the rotating drive member is connected to the winding shaft and is used to drive the winding shaft to rotate; a wire-shifting portion is extended downward from the bottom end of the winding shaft, and the wire-shifting portion deviates from the axis of the winding shaft, and the rotating drive member rotates the winding shaft, and the wire-shifting portion rotates around the winding foot of the transformer, so that the wire-shifting portion shifts the wire to wind around the winding foot.

7. The network transformer foot winding equipment according to claim 6 is characterized in that: The winding device also includes a mounting plate and an elastic clamping assembly, wherein the mounting plate is arranged at the bottom end of the lifting mechanism; the elastic clamping assembly includes a pressure strip and a compression spring, two guide shafts extend from the bottom end of the mounting plate, the two ends of the pressure strip are slidably connected to the two guide shafts, and a limiting portion is provided at the bottom end of the guide shaft for limiting the pressure strip; the compression spring is sleeved on the guide shaft and abuts between the pressure strip and the mounting plate.

8. The network transformer foot winding equipment according to claim 6 or 7, characterized in that: A support surface is arranged on a side of the wire-pulling part closer to the rotation axis, and the support surface extends obliquely downward from the upper end; and the lifting mechanism is an electric screw mechanism.

9. The network transformer foot winding equipment according to any one of claims 1 to 4, characterized in that: It also includes a tangent mechanism for cutting off excess residual wire of the pin before winding; the tangent mechanism includes a support seat, a rotating seat, a shearing knife and a driving member; the support seat is arranged on the frame, and two bosses extend from the support seat, and a first positioning groove is formed between the two bosses; a fixed knife is arranged on the outer side of the boss, and a cutting portion extending to the top of the boss is arranged on the top of the fixed knife, and a limiting groove is formed between the cutting portion and the boss; a mounting portion is provided at one end of the support seat, and one end of the rotating seat is rotatably connected to the mounting portion; the shearing knife is arranged on the bottom side of the rotating seat, and two cutting edges extend from the bottom side of the shearing knife; the driving member is connected to the rotating seat for driving the rotating seat to rotate.

10. The network transformer foot winding equipment according to claim 9, characterized in that: The tangent mechanism also includes two sets of pusher assemblies, which are arranged on both sides of the support seat; the pusher assembly includes a slide seat and a push cylinder; the slide seat is slidably connected to the support seat, and the push cylinder is connected to the slide seat to drive the slide seat to move; the fixed knife is provided with an inclined surface extending outward, and the slide seat is provided with a scraper that fits the inclined surface.

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