High-low voltage coil winding all-in-one machine for amorphous alloy closed three-dimensional coil distribution transformer

Abstract

The invention relates to the technical field of transformer processing, and particularly discloses an amorphous alloy closed three-dimensional winding distribution transformer high-low voltage coil winding all-in-one machine which comprises an unwinding unit, a welding unit and a winding unit, and the unwinding unit is used for unwinding foil roll materials and insulation paper; the welding unit is used for welding the copper sheets on the foils; the winding unit is used for winding the foil and the insulation paper on the iron core after the foil and the insulation paper are stacked. According to the amorphous alloy closed three-dimensional roll distribution transformer high-low voltage coil winding all-in-one machine, winding of three windings on a three-dimensional triangular roll iron core transformer can be automatically completed, in the winding process, the two ends of an iron core are supported in a suspended mode, the windings are supported in an auxiliary mode, the stability of the iron core and the windings is guaranteed, and the winding quality of the three-dimensional triangular roll iron core transformer is improved. The winding quality is improved, and the production technical requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer processing, and particularly to a non-crystalline alloy closed three-dimensional winding machine for high and low voltage coils of a distribution transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. It includes coils and an iron core, and is mainly applied to voltage transformation, current transformation, impedance transformation, etc. A three-dimensional triangular wound core transformer is a type of transformer, which has advantages such as energy saving, low noise, strong overload capacity, and compact structure, making its application more and more extensive.

[0003] Such as Fig.10 、 11 As shown, the three-dimensional triangular wound core transformer includes a three-dimensional iron core a and three windings b. The three-dimensional iron core a is formed by splicing three wound iron core single frames with the same geometric dimensions into a triangular three-dimensional arrangement. After the foil and insulating paper are stacked, they are wound around the core columns of the iron core to form the winding b, and the three windings b are arranged in a "pin" shape.

[0004] During the production process of the three-dimensional triangular wound core transformer, it is necessary to clamp and fix the iron core. The iron core is suspended so that coils can be wound around each core column of the iron core. However, the existing foil winding equipment cannot be applied to the production of large three-dimensional triangular wound core transformers. Due to the large size and self-weight of the large three-dimensional triangular wound core transformer, the existing equipment cannot provide good support for it, resulting in poor stability of the iron core during the winding process and low winding quality, which cannot meet the production technical requirements.

[0005] It can be seen that the existing technology still needs to be improved. Summary of the Invention

[0006] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present invention is to provide a non-crystalline alloy closed three-dimensional winding machine for high and low voltage coils of a distribution transformer, aiming to solve the technical problem of poor support stability of the three-dimensional triangular wound core transformer in the existing technology.

[0007] To achieve the above purpose, the present invention adopts the following technical solutions: A non-crystalline alloy closed three-dimensional winding machine for high and low voltage coils of a distribution transformer, comprising: A unwind unit, provided with a first frame, a first unwind device and a second unwind device provided on the first frame. The first unwind device is used for unwinding the foil coil material, and the second unwind device is used for unwinding the insulating paper coil material; The welding unit is arranged downstream of the first unwinding device. The welding unit includes a second frame, and a welding table, a pressing device and a first translation assembly arranged on the second frame. The welding table and the pressing device cooperate to press the foil and the copper sheet. A welding gun is provided at the output end of the first translation assembly, and the welding gun is used to weld and fix the foil and the copper sheet. The winding unit is arranged downstream of the welding unit. The winding unit includes a third frame, and a driving and rotating device, a second translation assembly and an auxiliary supporting device arranged on the third frame. A positioning device is provided at the output end of the second translation assembly, and the positioning device is used to fix the position of the iron core. The auxiliary supporting device is used to assist in supporting the iron core. The driving and rotating device includes a first rotating assembly, a rotating shaft arranged at the output end of the first rotating assembly, and two driving gear discs symmetrically arranged on the rotating shaft. The two driving gear discs are slidably connected to the rotating shaft, and the first rotating assembly can drive the two driving gear discs to rotate through the rotating shaft. During winding, the foil and the insulating paper are stacked. Two detachable passive gear discs are provided on the iron core, and the passive gear discs are rotatably connected to the core columns of the iron core. The two driving gear discs are meshed with the two passive gear discs one by one to drive the stacked foil and insulating paper to be wound around the iron core.

[0008] Further, the winding unit further includes a third translation assembly. Two third sliding seats moving towards or away from each other are provided on the third translation assembly, and one driving gear disc is arranged on one third sliding seat. A cantilever is provided on the third sliding seat, and a supporting gear is rotatably connected to the cantilever. The supporting gear is meshed with the passive gear disc.

[0009] Further, a first positioning plane extending along the axial direction is provided on the peripheral wall of the rotating shaft. Two sliding sleeves are slidably connected to the rotating shaft. The first positioning plane is used to limit the sliding sleeves to move only along the axial direction of the rotating shaft. One sliding sleeve is rotatably connected to one third sliding seat through a bearing, and the driving gear disc is fixed on the sliding sleeve.

[0010] Further, the auxiliary supporting device includes a first lifting assembly, a support, and a pressure sensor for connecting the first lifting assembly and the support. A supporting wheel is rotatably connected to the support.

[0011] Further, the positioning device includes a fourth translation assembly and two claw discs. Two fourth sliding seats moving towards or away from each other are provided on the fourth translation assembly, and one claw disc is rotatably arranged on one fourth sliding seat. One or more clamping claws are provided on each claw disc, and a V-shaped groove adapted to the iron core is provided on the clamping claw.

[0012] Further, a rubber pad is provided on the surface of the V-shaped groove. Positioning grooves extending to the ends are respectively opened on both side walls of the V-shaped groove, and the width of the positioning groove gradually decreases along the direction away from the end. A nail is provided on the rubber pad, and the nail is clamped in the positioning groove.

[0013] Furthermore, the welding unit also includes a first slide seat arranged at the output end of the first translation component, an XZ-axis position adjustment component arranged on the first slide seat, an X-axis fine-tuning component arranged on the XZ-axis position adjustment component, a Z-axis fine-tuning component arranged on the X-axis fine-tuning component, and a clamp seat arranged on the Z-axis fine-tuning component, and the welding gun is tilted and fixed on the clamp seat.

[0014] Furthermore, the clamping device includes a pressing plate and a pressing cylinder, one side of the pressing plate is hinged to the second frame, the extending rod of the pressing cylinder acts on the pressing plate to make the pressing plate swing downward, and a reset spring is provided between the pressing plate and the second frame to drive the pressing plate to swing and reset.

[0015] Furthermore, the unwinding unit also includes a first guide roller, a support platform, two second guide rollers and a dust removal device which are arranged in sequence along the conveying direction of the foil, and the dust removal device includes a fixed plate arranged on the first frame, a second lifting assembly arranged on the fixed plate, and a movable plate arranged on the second lifting assembly, and corresponding surfaces of the fixed plate and the movable plate are provided with sponges.

[0016] Furthermore, the unwinding unit also includes a limiting device arranged downstream of the dust removal device, and the limiting device includes a vertical plate horizontally slidably connected to the first frame, the vertical plate is a C-shaped structure, and two position-adjustable limiting rollers are provided on the vertical plate, and the foil is located between the two limiting rollers.

[0017] Beneficial effects: The present invention provides an amorphous alloy closed three-dimensional winding transformer high and low voltage coil winding integrated machine, which is used for the production and processing of three-dimensional triangular winding iron core transformers. Before processing, the two ends of the iron core are clamped and fixed by a positioning device so that the iron core is suspended in the air. The first unwinding device unwinds the foil coil. When the foil passes through the welding unit, the welding unit welds and fixes the copper sheet on the foil to make the electrode end of the three-dimensional triangular winding iron core transformer; the second unwinding device unwinds the insulating paper coil, and the foil and the insulating paper are stacked and then rewound by the rewinding unit. During rewinding, the first rotating assembly drives the rotating shaft to rotate, and drives the driving gear disc to engage with the passive gear disc, so as to realize the rewinding of the foil and the insulating paper onto the core column to form the first winding. During the winding process, the auxiliary support device plays an auxiliary supporting role for the winding to ensure the stability of the iron core and the winding, thereby improving the winding quality. After completing one winding, the second rotating assembly drives the iron core to rotate an angle, and the other core shaft rotates to the winding position to wind the second winding. This principle is used until the winding of the three windings is completed. By automatically winding the three windings, the problem of poor winding quality caused by multiple clamping of the iron core is avoided, and the production technical requirements can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the amorphous alloy closed three-dimensional winding variable high and low voltage coil winding machine provided by the present invention; Figure 2 It is a structural schematic diagram of the winding process; Figure 3 It is a front view of the welding unit in the amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine provided by the present invention; Figure 4 A top view of a winding unit in a closed three-dimensional coil of an amorphous alloy provided by the present invention for variable high and low voltage coil winding; Figure 5 A top view of a driving gear disc in a closed three-dimensional winding machine for variable high and low voltage coils provided by the present invention; Figure 6 A top view of a claw plate in a closed three-dimensional winding machine for variable high and low voltage coils provided by the present invention; Figure 7 A partial cross-sectional view of a clamping jaw in a closed three-dimensional winding machine for variable high and low voltage coils provided by the present invention; Figure 8 A side view of a dust removal device in a closed three-dimensional coil variable high and low voltage coil winding machine provided by the present invention; Fig. 9 A side view of a limit device in a closed three-dimensional coil-wound variable high and low voltage coil winding machine provided by the present invention; Fig.10 It is a structural schematic diagram of a three-dimensional triangular wound core transformer; Fig.11 It is a schematic diagram of the structure of the iron core, winding and passive gear disc.

[0019] Figure symbols: unwinding unit 1, first frame 11, first unwinding device 12, second unwinding device 13, first guide roller 14, supporting platform 15, second guide roller 16, dust removal device 17, fixed plate 171, second lifting assembly 172, movable plate 173, sponge 174, limiting device 18, vertical plate 181, limiting roller 182, welding unit 2, second frame 21, welding table 22, clamping device 23, pressing plate 231, pressing cylinder 232, return spring 233, first translation assembly 24, first slide 241, welding gun 25, XZ axis position adjustment assembly 26, cross bar 261, vertical bar 262, X axis fine adjustment assembly 27, Z axis fine adjustment assembly 28, clamping seat 29, winding unit 3, third frame 4, third translation assembly 41, third slide 42, cantilever 43, adjustment slot 431, support gear 44, square shaft 45, driving rotation device 5, first rotation assembly 51, rotation shaft 52, first positioning plane 521, sleeve 522, driving gear plate 53, protective cover 54, second translation assembly 6, auxiliary support device 7, first lifting assembly 71, support 72, pressure sensor 73, support wheel 74, positioning device 8, fourth translation assembly 81, claw plate 82, fourth slide 83, clamping claw 84, V-shaped groove 841, positioning groove 842, rack 843, rubber pad 85, staple 851, adjusting gear plate 86, handle 861, second rotation assembly 87, passive gear plate 9; Iron core a, winding b, foil c, insulating paper d, copper sheet e. DETAILED DESCRIPTION

[0020] The present invention provides an amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the present invention, the X-axis direction is the conveying direction of the foil, the Y-axis direction is the width direction of the foil, and the Z-axis direction is the vertical direction.

[0023] See also Figures 1 to 9 As shown, the present invention provides an amorphous alloy closed-end three-dimensional winding transformer high and low voltage coil winding integrated machine, including: an unwinding unit 1, a welding unit 2 and a winding unit 3. The present invention is used for the production and processing of a three-dimensional triangular wound iron core transformer, and stacked foil c and insulating paper d are wound on three core columns of the iron core in sequence to form three windings c respectively; and in the winding process, a copper sheet e needs to be welded on the foil to form the electrode end of the winding c.

[0024] Please refer to Figure 1 , 3 4, the unwinding unit 1 is provided with a first frame 11, and a first unwinding device 12 and a second unwinding device 13 arranged on the first frame 11, the first unwinding device 12 is used for unwinding foil coils, and the second unwinding device 13 is used for unwinding insulating paper coils; the welding unit 2 is arranged downstream of the first unwinding device 12, and the welding unit 2 includes a second frame 21, and a welding table 22, a clamping device 23 and a first translation assembly 24 arranged on the second frame 21, the welding table 22 and the clamping device 23 cooperate to clamp the foil and the copper sheet, and the output end of the first translation assembly 24 is provided with a welding gun 25, and the welding gun 25 is used to weld and fix the foil and the copper sheet; the The winding unit 3 is arranged downstream of the welding unit 2, and the winding unit 3 includes a third frame 4, and a driving rotating device 5, a second translation assembly 6 and an auxiliary supporting device 7 arranged on the third frame 4. The output end of the second translation assembly 6 is provided with a positioning device 8, the positioning device 8 is used to fix the position of the iron core, and the auxiliary supporting device 7 is used to auxiliary support the iron core; the driving rotating device 5 includes a first rotating assembly 51, a rotating shaft 52 arranged at the output end of the first rotating assembly 51, and two driving gear discs 53 symmetrically arranged on the rotating shaft 52, the two driving gear discs 53 are slidably connected to the rotating shaft 52, and the first rotating assembly 51 can drive the two driving gear discs 53 to rotate through the rotating shaft 52; During winding, the foil and insulating paper are stacked, and two detachable passive toothed discs 9 are provided on the iron core, and the passive toothed discs 9 are rotationally connected to the core column of the iron core, and the two driving toothed discs 53 are meshed with the two passive toothed discs 9 one by one to drive the stacked foil and insulating paper to be wound on the iron core.

[0025] When producing a three-dimensional triangular wound core transformer, the positioning device 8 supports and fixes the two ends of the core so that the core is suspended in the air, and a passive gear disc 9 is inserted into one of the core columns of the core. The second translation assembly 6 drives the positioning device 8 to move toward the driving rotation device 5 so that the driving gear disc 53 and the passive gear disc 9 are engaged. During production, the first unwinding device 12 unwinds the foil coil, and the second unwinding device 13 unwinds the insulating paper; the foil enters the reeling unit 3 after passing through the welding unit 2, and the insulating paper directly enters the reeling unit 3; when the foil needs to be welded to the copper sheet, the first unwinding device 12 and the second unwinding device 13 stop unwinding, and place the copper sheet on the surface of the foil, the clamping device 23 cooperates with the welding table 22 to clamp and fix the foil and the copper sheet, and the first translation assembly 24 drives the welding gun 25 to move horizontally so that the welding gun 25 welds the foil and the copper sheet together; when rewinding, the foil and the insulating paper are stacked, the first rotating assembly 51 drives the rotating shaft 52 to rotate, and drives the two driving gear discs 53 to rotate synchronously, and the driving gear disc 53 and the passive gear disc 9 are engaged to realize winding on the core column, and complete the winding of a core column. In the later stage of winding, due to the increasing weight of the winding, the auxiliary support device 7 can play an auxiliary support role for the winding to ensure the stability of the core installation.

[0026] After completing the winding of one winding, the passive gear disc 9 is installed on another core column, and the positioning device 8 drives the core to rotate an angle so that the core column rotates to the winding station and the second winding is wound. In this principle, the winding of three windings is completed. Compared with the prior art, the two ends of the core are clamped and fixed; and in the later stage of winding, the winding is auxiliary supported by the auxiliary support device 7 to improve the stability of the core and winding installation, ensure the quality of winding, and meet the production technology requirements.

[0027] In the above, the first unwinding device 12 includes a power source and an open clamp. The open clamp can be a self-centering open clamp without a spoke wheel disclosed in Chinese patent announcement number CN219747675U, which can facilitate the staff to install or remove the foil roll; the second unwinding device 13 includes a power source and an air shaft, which can facilitate the staff to quickly install and remove the insulating paper roll. In order to shorten the time spent on changing the roll, more than one first unwinding device 12 and second unwinding device 13 can be set. Through the above settings, the production efficiency of the three-dimensional triangular coil core transformer can be improved.

[0028] In a preferred embodiment, please refer to Figure 2 , 45. The winding unit 3 also includes a third translation assembly 41, on which two third slides 42 are provided for moving toward or away from each other, and a driving gear 53 is provided on one of the third slides 42; a cantilever 43 is provided on the third slide 42, on which a support gear 44 is rotatably connected, and the support gear 44 is meshed with the passive gear 9. During the winding process, the support gear 44 is located below the passive gear 9, which, on the one hand, plays an auxiliary supporting role for the passive gear 9 and the iron core, and on the other hand, the passive gear 9 is meshed with the support gear 44 to improve the stability and smoothness of the rotation of the passive gear 9, thereby improving the quality of the foil and insulating paper winding.

[0029] In actual use, different sizes of iron cores are equipped with different passive toothed discs 9, so it is necessary to match different support gears 44 and adjust the installation position of the support gear 44 to ensure that the passive toothed disc 9 is meshed with the support gear 44. Specifically, the cantilever 43 is provided with an adjustment slot 431 extending along its length direction, and a square shaft 45 is slidably connected to the adjustment slot 431. One end of the square shaft 45 is rotatably connected to the support gear 44, and the other end thereof is threaded with a nut, and the nut cooperates with the shoulder of the square shaft 45 to lock the square shaft 45 at any position of the adjustment slot 431. When the support gear 44 needs to be replaced, the nut is unscrewed, and the square shaft 45 can be directly pulled out of the adjustment slot 431. After replacing the new support gear 44, the corresponding square shaft 45 is inserted into the adjustment slot 431, and the square shaft 45 slides along the adjustment slot 431 to adjust the support gear 44 to a suitable position, and finally the nut is locked to fix the installation position of the support gear 44. Through the above arrangement, the support gear 44 can be easily adjusted and replaced, which is suitable for winding the windings on the iron cores of different sizes and has wide applicability.

[0030] It should be noted that a detachably connected sleeve is provided on the core column, and the passive toothed disc 9 is fixed on the sleeve. The installation position of the sleeve is relatively fixed to the core column, and has a self-rotation function, so that the passive toothed disc 9 rotates under the meshing action of the driving toothed disc 53, so that the foil and the insulating paper can be rolled up to the core column. After the winding is completed, the sleeve and the passive toothed disc 9 are removed. At this time, there is a certain gap between the winding and the core column, and the winding is fixed in position in a unified manner in the subsequent production process.

[0031] In a preferred embodiment, please refer to Figure 2 , 4, a first positioning plane 521 extending along the axial direction of the rotating shaft 52 is provided on the peripheral wall of the rotating shaft 52, and two sliding sleeves 522 are slidably connected to the rotating shaft 52. The first positioning plane 521 is used to limit the sliding sleeve 522 to move only along the axial direction of the rotating shaft 52. Correspondingly, a second positioning plane that fits the first positioning plane 521 is provided on the sliding sleeve 522, so that the sliding sleeve 522 can only move horizontally on the rotating shaft 52, and the rotating shaft 52 can drive the sliding sleeve 522 to rotate. One sliding sleeve 522 is rotatably connected to a third sliding seat 42 through a bearing, and the driving gear disc 53 is fixed on the sliding sleeve 522. During adjustment, the third translation assembly 41 drives the two third sliding seats 42 to move toward or away from each other, and the two sliding sleeves 522 move horizontally along the rotating shaft 52, so that the two driving gear discs 53 correspond to the two passive gear discs 9 one by one. During winding, the first rotating assembly 51 drives the rotating shaft 52 to rotate, so as to drive the two sliding sleeves 522 to rotate, thereby driving the driving gear disc 53 to rotate.

[0032] Further, see Figure 5 A protective cover 54 is provided on the third slide 42, and the protective cover 54 is located at the outer periphery of the driving gear disc 53. By providing the protective cover 54, the foil and the insulating paper can be prevented from touching the driving gear disc 53 due to improper operation. At the same time, the lubricant on the driving gear disc 53 can be prevented from splashing onto the foil and the insulating paper, thereby achieving the purpose of protecting the foil and the insulating paper.

[0033] In a preferred embodiment, please refer to Figure 2 , 4 The auxiliary support device 7 includes a first lifting assembly 71, a support 72, and a pressure sensor 73 for connecting the first lifting assembly 71 and the support 72. The support 72 is rotatably connected with a support wheel 74. The support wheel 74 is provided to reduce the friction between the winding and the support 72. When in use, the first lifting assembly 71 drives the support 72 to move upward to lift the support wheel 74. When the winding is rolled up to a certain extent, its outer surface acts on the support wheel 74 and drives the support wheel 74 to rotate. At this time, the support wheel 74 plays an auxiliary supporting role for the winding. As the outer diameter of the winding increases, the force applied by the winding to the support wheel 74 gradually increases. The pressure sensor 73 can detect the pressure on the support 72. Once the pressure exceeds the preset pressure value, the first lifting assembly 71 drives the support 72 to descend a short distance, and the support wheel 74 is away from the winding, so that the detection value of the pressure sensor 73 is within the preset pressure range, which can better provide auxiliary support for the winding.

[0034] It should be understood that the support wheel 74 is located below the winding and can provide an upward support force to the winding. Preferably, the installation position of the first lifting assembly 71 is adjustable to increase the installation range of the support wheel 74 and adapt to the winding work of iron cores of different sizes.

[0035] In a preferred embodiment, please refer to Figure 4 , 6 7. The positioning device 8 includes a fourth translation assembly 81 and two claw plates 82. The fourth translation assembly 81 is provided with two fourth slides 83 that move toward or away from each other. One claw plate 82 is rotatably provided on one fourth slide 83. Each claw plate 82 is provided with one or more clamping claws 84, and the clamping claws 84 are provided with V-shaped grooves 841 that match the iron core. Accordingly, there are three clamping claws 84, which are arranged on the claw plate 82 in a circular array. The three clamping claws 84 correspond to the three edges of one end of the iron core. The fourth translation assembly 81 drives the two claw plates 82 to move toward each other. The two ends of the iron core are clamped on the multiple V-shaped grooves 841 to fix the position of the iron core. By fixing the two ends of the iron core, the iron core can be well supported to ensure that the entire winding process proceeds smoothly.

[0036] The mounting structure of the three clamping jaws 84 of the present application can adopt the structure in the prior art, such as the three-jaw movable sleeve of the Chinese patent announcement CN102658533A. The mounting structure of the clamping jaws 84 of the present application is similar to the prior art provided above, and the specific structure is as follows: See also Figure 6 The three clamping jaws 84 can make translational motion along the radial direction of the claw plate 82, and the position of the clamping jaws 84 can be adjusted to be suitable for fixing iron cores of different sizes. A rack 843 is fixedly provided on the side of the clamping jaw 84 away from the V-shaped groove 841, and the rack 843 is slidably connected to the claw plate 82. An adjusting toothed disc 86 is rotatably connected in the claw plate 82, and a plane thread is provided on one side of the adjusting toothed disc 86, which meshes with the racks 843 of the three clamping jaws 84. A handle 861 arranged vertically is provided on the adjusting toothed disc 86. When adjusting, the adjusting toothed disc 86 is driven to rotate around the center line of the claw plate 82 by rotating the handle 861, and the plane thread meshes with the three racks 843. The claw plate 82 is provided with radially arranged guide grooves corresponding to the three clamping jaws 84, so that the three clamping jaws 84 can move synchronously along the radial direction of the claw plate 82.

[0037] Further, see Figure 6 A second rotating assembly 87 is provided on each fourth slide 83, and one second rotating assembly 87 drives one claw disk 82 to rotate accordingly, and the two claw disks 82 rotate synchronously, so that after one core column completes the winding, the two second rotating assemblies 87 drive the two claw disks 82 to rotate, and the iron core rotates an angle, so that the other core column rotates to the winding station, thereby improving the degree of automation in processing the three-dimensional triangular wound iron core transformer and avoiding the reduction of the winding quality due to multiple clamping of the iron core.

[0038] In the above, the first rotating assembly 51 and the second rotating assembly 87 can be matched with a servo motor and a reducer to achieve driving rotation, and can accurately control the rotation speed, direction and angle thereof.

[0039] In the above, the first translation assembly 24 and the second translation assembly 6 may adopt a ball screw transmission mechanism to realize driving the welding gun 25 to perform translational movement along the width direction of the foil, and driving the positioning device 8 to move toward or away from the driving rotating device 5.

[0040] In the above, the third translation assembly 41 and the fourth translation assembly 81 can adopt a ball screw transmission mechanism, and the screw has two sections of threads with opposite rotation directions to drive the two driving gear plates 53 and the two claw plates 82 to move towards or away from each other.

[0041] For further information, see Figure 6 , 7 The surface of the V-shaped groove 841 is provided with a rubber pad 85. The rubber pad 85 is provided to buffer the iron core and prevent the iron core from colliding with the clamping claw 84 and damaging the surface of the iron core.

[0042] Specifically, the two side walls of the V-shaped groove 841 are respectively provided with positioning grooves 842 extending to the ends thereof, and the width of the positioning grooves 842 gradually decreases in the direction away from the ends. The rubber pad 85 is provided with a clamping nail 851, and the clamping nail 851 is clamped in the positioning groove 842. The clamping nail 851 includes a short column and a nail cap, and the two ends of the short column are respectively fixed to the outer side of the rubber pad 85 and the nail cap. When installing, the short column is correspondingly slid into the positioning groove 842, and the positioning groove 842 with a gradually decreasing width is used to clamp the short column to lock the position of the rubber pad 85. In the process of clamping the iron core, the iron core applies force to the outside to push the rubber pad 85 further into the V-shaped groove 841. At this time, the clamping nail 851 slides into the narrower position of the positioning groove 842 to increase the stability of the installation of the rubber pad 85 and prevent the rubber pad 85 from falling off. When replacing the rubber pad 85 , it is only necessary to pull out the rubber pad 85 along the positioning groove 842 with a little force, or to cut off the nail cap and directly pull the short column out of the positioning groove 842 . The operation is simple.

[0043] In a preferred embodiment, please refer to Figure 3The welding unit 2 further comprises a first slide 241 disposed at the output end of the first translation assembly 24, an XZ axis position adjustment assembly 26 disposed on the first slide 241, an X axis fine adjustment assembly 27 disposed on the XZ axis position adjustment assembly 26, a Z axis fine adjustment assembly 28 disposed on the X axis fine adjustment assembly 27, and a clamp 29 disposed on the Z axis fine adjustment assembly 28, and the welding gun 25 is tilted and fixed on the clamp 29. The installation position of the welding gun 25 on the XZ axis plane can be roughly adjusted by the XZ axis position adjustment assembly 26, and the installation position of the welding gun 25 on the XZ axis plane can be finely adjusted by the X axis fine adjustment assembly 27 and the Z axis fine adjustment assembly 28; the rough adjustment and fine adjustment can cooperate to quickly adjust the welding gun 25 to a specified position.

[0044] In the above, the XZ axis position adjustment component 26 includes a horizontal bar 261 arranged on the first slide 241, a vertical bar 262 arranged on the horizontal bar 261, and a connecting piece for connecting the horizontal bar 261 and the vertical bar 262. The connecting piece can be a screw nut. The horizontal bar 261 and the vertical bar 262 are respectively provided with long grooves. After the screw passes through the long groove and is locked by the nut, the position of the horizontal bar 261 and the vertical bar 262 can be fixed.

[0045] In the above, the X-axis fine-tuning assembly 27 includes a fixed seat, a movable block slidably connected to the fixed seat, and a screw rod rotatably connected to the fixed seat, the screw rod is engaged with the movable block, and the movable block is driven to move horizontally by rotating the screw rod. The structure and working principle of the Z-axis fine-tuning assembly 28 are similar to those of the X-axis fine-tuning assembly 27, and the details can be referred to the above-mentioned X-axis fine-tuning assembly 27.

[0046] Further, see Figure 3 The clamping device 23 includes a pressing plate 231 and a pressing cylinder 232. One side of the pressing plate 231 is hinged to the second frame 21. The extension rod of the pressing cylinder 232 acts on the pressing plate 231 to make the pressing plate 231 swing downward. A reset spring 233 for driving the pressing plate 231 to swing and reset is provided between the pressing plate 231 and the second frame 21. The reset spring 233 can be a torsion spring, a tension spring, etc. During welding, the extension rod of the pressing cylinder 232 extends to drive the pressing plate 231 to swing downward. The end of the pressing plate 231 presses the copper sheet and the foil sheet on the welding table 22. Then, the first translation assembly 24 drives the first slide 241 to move horizontally, so that the welding gun 25 welds the foil sheet and the copper sheet to fix them.

[0047] In a preferred embodiment, see Figure 2 , 8The unwinding unit 1 further includes a first guide roller 14, a support platform 15, two second guide rollers 16 and a dust removal device 17 which are sequentially arranged along the conveying direction of the foil. The dust removal device 17 includes a fixed plate 171 arranged on the first frame 11, a second lifting assembly 172 arranged on the fixed plate 171, and a movable plate 173 arranged on the second lifting assembly 172. Sponges 174 are arranged on the corresponding surfaces of the fixed plate 171 and the movable plate 173. The two second guide rollers 16 are arranged up and down to limit the up and down movement range of the foil; the support platform 15 is used to support the foil so that the foil is in a relatively flat state, so that the foil can enter the dust removal device 17 for dust removal. When in use, the second lifting assembly 172 drives the movable plate 173 to move upward, and the movable plate 173 is close to the fixed plate 171. When the foil passes by, the two sponges 174 contact the upper and lower surfaces of the foil respectively to wipe away the dust on the surface of the foil, thereby playing a role in dust removal. To facilitate replacement of the sponge 174 , the sponge 174 is fixed to the movable plate 173 and the fixed plate 171 by screws.

[0048] In the above, the first lifting assembly 71 and the second lifting assembly 172 can be cylinder-driven lifting structures to achieve driving the support wheel 74 to perform lifting motion and driving the movable plate 173 to perform lifting motion.

[0049] Further, see Figure 2 , 9 The unwinding unit 1 also includes a limiting device 18 disposed downstream of the dust removal device 17, and the limiting device 18 includes a vertical plate 181 horizontally slidably connected to the first frame 11, and the vertical plate 181 is a C-shaped structure. Two position-adjustable limiting rollers 182 are provided on the vertical plate 181, and the foil is located between the two limiting rollers 182; the limiting rollers 182 can rotate to ensure the smoothness of the foil transportation. The vertical plate 181 has transverse grooves on the upper and lower sides respectively, and the two limiting rollers 182 are vertically arranged, and the two ends thereof are respectively slidably connected to the two transverse grooves to achieve the position adjustment of the limiting rollers 182. The two limiting rollers 182 are used to limit the left and right positions of the foil to avoid the position displacement of the foil during the unwinding process, thereby ensuring the accuracy of the iron core winding.

[0050] In addition, a guide rail is provided on the vertical plate 181, and a slider is provided on the first frame 11, and the slider is slidably connected to the guide rail. When the vertical plate 181 is pushed to the right, the two limiting rollers 182 limit the left and right positions of the foil; when the vertical plate 181 is pushed to the left, the vertical plate 181 is away from the dust removal device 17, so that the sponge 174 can be replaced easily.

[0051] In summary, the present invention unwinds the foil coil by the first unwinding device 12, and the foil passes through the first guide roller 14, the supporting platform 15, the dust removal device 17 and the limiting device 18 in sequence, and after the dust on its surface is removed by the dust removal device 17, it smoothly enters the welding unit 2; when it is necessary to weld a copper sheet on the foil, the clamping device 23 presses the copper sheet and the foil on the welding table 22, and the first translation assembly 24 drives the welding gun 25 to move horizontally to realize welding and fixing the copper sheet on the foil; the second unwinding device 13 unwinds the insulating paper coil, and the foil and the insulating paper are stacked and then rewound by the rewinding unit 3; when rewinding, the positioning device 8 supports the two ends of the iron core so that the iron core is suspended, and at the same time, the toothed disc 53 is driven The first rotating assembly 51 drives the rotating shaft 52 to rotate, and drives the driving gear 53, the driven gear 9 and the supporting gear 44 to rotate, so as to realize the winding of the foil and the insulating paper onto the core column of the iron core; the first lifting assembly 71 drives the support 72 to move upward, and after the winding is wound to a certain extent, the outer side of the winding acts on the supporting wheel 74, and the supporting wheel 74 plays a certain auxiliary supporting role for the winding. At the same time, the pressure sensor 73 detects the pressure on the supporting wheel 74. According to the detection value, the first lifting assembly 71 drives the support 72 to move downward, so that the detection value is within the preset pressure range, ensuring that the winding plays a better auxiliary supporting role. After completing the winding of one winding, the second rotating assembly 87 drives the claw plate 82 to rotate an angle, and the other unwound core column rotates to the winding station, and the second winding is wound. In this principle, the winding of the three windings is completed.

[0052] Compared with the prior art, by supporting and fixing the two ends of the iron core, using the support gear 44 to mesh with the passive gear plate 9 to assist in supporting the iron core, and using the support wheel 74 to assist in supporting the winding, the stability of the iron core and the winding during the winding process can be improved, the winding quality can be improved, and the iron core can be driven to rotate by the second rotating component 87 to achieve automatic winding of the three windings, avoiding the problem of poor winding quality caused by multiple clamping of the iron core, and meeting the production technical requirements.

[0053] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. Amorphous alloy closed three-dimensional winding variable high and low voltage coil winding machine, characterized in that: include: An unwinding unit (1) is provided with a first frame (11), and a first unwinding device (12) and a second unwinding device (13) arranged on the first frame (11), the first unwinding device (12) being used for unwinding a foil coil, and the second unwinding device (13) being used for unwinding an insulating paper coil; A welding unit (2) is arranged downstream of the first unwinding device (12), the welding unit (2) comprising a second frame (21), a welding table (22), a pressing device (23) and a first translation assembly (24) arranged on the second frame (21), the welding table (22) and the pressing device (23) cooperate to press the foil and the copper sheet, and a welding gun (25) is arranged at the output end of the first translation assembly (24), and the welding gun (25) is used to weld and fix the foil and the copper sheet; The winding unit (3) is arranged downstream of the welding unit (2), and comprises a third frame (4), a driving rotating device (5) arranged on the third frame (4), a second translation assembly (6) and an auxiliary supporting device (7), wherein the output end of the second translation assembly (6) is provided with a positioning device (8), the positioning device (8) is used to fix the position of the iron core, and the auxiliary supporting device (7) is used to auxiliary support the iron core; the driving rotating device (5) comprises a first rotating assembly (51), a rotating shaft (52) arranged at the output end of the first rotating assembly (51), and two driving toothed discs (53) symmetrically arranged on the rotating shaft (52), the two driving toothed discs (53) are slidably connected to the rotating shaft (52), and the first rotating assembly (51) can drive the two driving toothed discs (53) to rotate through the rotating shaft (52); During winding, the foil and the insulating paper are stacked, two detachable passive toothed discs (9) are provided on the iron core, and the passive toothed discs (9) are rotatably connected to the core column of the iron core, and the two driving toothed discs (53) are meshed with the two passive toothed discs (9) in a one-to-one correspondence, so as to drive the stacked foil and the insulating paper to be wound on the iron core.

2. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 1 is characterized in that: The winding unit (3) further comprises a third translation assembly (41), the third translation assembly (41) being provided with two third slides (42) which move towards or away from each other, and a driving toothed disc (53) being provided on one of the third slides (42); a cantilever (43) being provided on the third slide (42), a support gear (44) being rotatably connected to the cantilever (43), and the support gear (44) being meshed with the driven toothed disc (9).

3. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 2 is characterized in that: A first positioning plane (521) extending in the axial direction of the rotating shaft (52) is provided on the peripheral wall of the rotating shaft (52); two sliding sleeves (522) are slidably connected to the rotating shaft (52); the first positioning plane (521) is used to limit the sliding sleeves (522) to move only in the axial direction of the rotating shaft (52); one sliding sleeve (522) is rotatably connected to a third sliding seat (42) via a bearing; and the driving gear disc (53) is fixedly arranged on the sliding sleeve (522).

4. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 1 is characterized in that: The auxiliary support device (7) comprises a first lifting assembly (71), a support (72), and a pressure sensor (73) for connecting the first lifting assembly (71) and the support (72); a support wheel (74) is rotatably connected to the support (72).

5. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 1, characterized in that: The positioning device (8) comprises a fourth translation assembly (81) and two claw plates (82); the fourth translation assembly (81) is provided with two fourth slide seats (83) that move towards or away from each other; a claw plate (82) is rotatably arranged on a fourth slide seat (83); each claw plate (82) is provided with one or more clamping claws (84); the clamping claws (84) are provided with V-shaped grooves (841) that are adapted to the iron core.

6. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 5, characterized in that: A rubber pad (85) is provided on the surface of the V-shaped groove (841), and positioning grooves (842) extending to the ends of the V-shaped groove (841) are respectively formed on two side walls of the V-shaped groove (841), and the width of the positioning groove (842) gradually decreases in a direction away from the ends, and a clamping pin (851) is provided on the rubber pad (85), and the clamping pin (851) is clamped in the positioning groove (842).

7. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 1, characterized in that: The welding unit (2) further comprises a first slide (241) arranged at the output end of the first translation assembly (24), an XZ-axis position adjustment assembly (26) arranged on the first slide (241), an X-axis fine-tuning assembly (27) arranged on the XZ-axis position adjustment assembly (26), a Z-axis fine-tuning assembly (28) arranged on the X-axis fine-tuning assembly (27), and a clamping seat (29) arranged on the Z-axis fine-tuning assembly (28), and the welding gun (25) is tiltedly fixed on the clamping seat (29).

8. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 1, characterized in that: The pressing device (23) comprises a pressing plate (231) and a pressing cylinder (232). One side of the pressing plate (231) is hinged to the second frame (21). The extending rod of the pressing cylinder (232) acts on the pressing plate (231) to cause the pressing plate (231) to swing downward. A return spring (233) is provided between the pressing plate (231) and the second frame (21) to drive the pressing plate (231) to swing and return.

9. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 1, characterized in that: The unwinding unit (1) further comprises a first guide roller (14), a support platform (15), two second guide rollers (16) and a dust removal device (17) which are sequentially arranged along the conveying direction of the foil, the dust removal device (17) comprising a fixed plate (171) arranged on the first frame (11), a second lifting assembly (172) arranged on the fixed plate (171), and a movable plate (173) arranged on the second lifting assembly (172), and sponges (174) are provided on corresponding surfaces of the fixed plate (171) and the movable plate (173).

10. The amorphous alloy closed three-dimensional winding variable high and low voltage coil winding integrated machine according to claim 9, characterized in that: The unwinding unit (1) further comprises a limiting device (18) arranged downstream of the dust removal device (17), the limiting device (18) comprising a vertical plate (181) horizontally slidably connected to the first frame (11), the vertical plate (181) being a C-shaped structure, two position-adjustable limiting rollers (182) being arranged on the vertical plate (181), and the foil being located between the two limiting rollers (182).

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