A stator core and winding assembly device for transformer manufacturing

Abstract

The present invention relates to the technical field of transformer manufacturing, and specifically to an assembly equipment for stator cores and windings in transformer manufacturing, which includes a support plate. Symmetric trapezoidal brackets are fixedly installed on the support plate, and a positioning mechanism for determining the installation position with reference to the stator core is jointly provided on the symmetric trapezoidal brackets. The present invention synchronously and integrally hoists, positions and assembles multiple groups of low-voltage windings, insulating layers and high-voltage windings on the stator core, improves the assembly accuracy and production efficiency, adjusts the assembly equipment by referring to the position of the stator core to ensure the strict alignment of the windings and insulating layers. Secondly, the low-voltage windings are firmly hoisted and an insulating layer is appropriately added. Finally, position limiting is carried out through the special protrusions of the high-voltage windings to ensure accurate winding alignment, simplifies the assembly process, thereby ensuring that the assembly quality of each transformer remains consistent, reduces quality fluctuations, improves the reliability of the product, and ensures the safety of the workplace and the long-term stability of the transformer.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer manufacturing, and particularly to an assembly device for a stator core and windings in transformer manufacturing. Background Art

[0002] A dry-type transformer is a transformer that uses air or other dry gases as cooling and insulating media. Because it does not rely on insulating oil for cooling and insulation, it is widely used in places where high safety and environmental protection standards are required. A dry-type transformer is composed of a stator core, a low-voltage winding, an insulating layer, a high-voltage winding, etc. from the inside out. Among them, the assembly of the stator core and windings is one of the important steps in dry-type transformer manufacturing. Only by ensuring that the stator core and windings are accurately assembled together to form the basic structure of the transformer can the subsequent performance and stability of the transformer be ensured.

[0003] Currently, the following problems exist when assembling the stator core and windings: 1. The assembly of the stator core and windings is mainly carried out manually. Workers need to hoist the high-voltage windings onto the stator core one by one and adjust their positions, then place the insulating layers between the high-voltage windings and the stator core one by one, and then hoist the low-voltage windings onto the stator core and the insulating layer one by one. In the above process, each group of windings needs to be lifted and installed one by one, which significantly increases the production time and cost. Moreover, it has high requirements for the skills of workers, and experienced operators are needed to ensure the assembly quality. Improper handling or assembly may cause equipment damage or personal injury, thus increasing the safety risk in the workplace; 2. During the installation of the low-voltage winding and the high-voltage winding, workers need to continuously manually adjust the positions of the lifted low-voltage winding and high-voltage winding. However, it is very difficult to achieve the required accuracy by manual adjustment, resulting in uneven gaps between the windings, affecting the electrical performance of the transformer. And it is difficult to ensure that the positions of the windings in each transformer are consistent by manual adjustment, resulting in fluctuations in the performance of the transformer, and further affecting the stability of the transformer.

[0004] Therefore, in order to ensure that the stator core and windings are accurately assembled together and ensure the subsequent performance and stability of the transformer, the present invention provides an assembly device for a stator core and windings in transformer manufacturing. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an assembly device for a stator core and windings in transformer manufacturing, which is achieved by the following specific technical means: An assembly device for a stator core and windings in transformer manufacturing includes a support plate. Symmetric trapezoidal brackets are fixedly installed on the support plate in the front and back, and a winding machine is located at the center of the upper end surface of the support plate. A positioning mechanism for determining the installation position with reference to the stator core is jointly provided on the symmetric trapezoidal brackets in the front and back; the positioning mechanism includes a driving part jointly provided on the symmetric trapezoidal brackets in the front and back, and a positioning part for positioning the four corners of the stator core is provided on the driving part.

[0006] A hoisting mechanism for synchronously hoisting and fixing a plurality of low-voltage windings and an insulating layer is provided on the support plate; the hoisting mechanism includes a main body portion provided on the support plate for adjusting the hoisting height, a left limiting portion and a right limiting portion provided on the main body portion for respectively fixing the left and right ends of the low-voltage winding, an inner support portion provided on the main body portion for internally supporting and limiting the low-voltage winding, and a film clamping portion for fixing and maintaining the shape of the insulating layer.

[0007] A clamping mechanism for aligning and assembling a high-voltage winding, a low-voltage winding and an insulating layer in cooperation with the hoisting mechanism is provided on the main body portion; the clamping mechanism includes a lifting portion provided on the main body portion for adjusting the position of the high-voltage winding, and a clamping portion provided on the lifting portion for synchronously hoisting and fixing a plurality of high-voltage windings.

[0008] As a preferred technical solution of the present invention, the driving portion includes a first slideway, a first bidirectional screw, a first motor and universal wheels. First slideways are provided on the sides where the lower ends of the front and rear symmetric trapezoidal brackets are close to each other. A first bidirectional screw is installed through the first slideways by bearings. First belt pulleys are fixedly sleeved on the right ends of the first bidirectional screws. The first belt pulleys are connected by a first belt provided therebetween. A first motor with an output end fixedly connected to the corresponding first bidirectional screw is fixedly installed on the rear trapezoidal bracket. Universal wheels that are symmetrically arranged left and right are fixedly installed on the lower end surfaces of the trapezoidal brackets.

[0009] As a preferred technical solution of the present invention, the positioning portion includes positioning sliders, hinge rods and right-angled clamping blocks. Positioning sliders that are symmetrically arranged left and right and are threadedly connected to the corresponding first bidirectional screws are slidably installed in the first slideways. Hinge rods are hinged to the side walls of the positioning sliders away from the corresponding first bidirectional screws through torsion springs provided therebetween. Right-angled clamping blocks corresponding to each other are fixedly installed at the other ends of the hinge rods that are symmetrically arranged left and right on the same first slideway.

[0010] As a preferred technical solution of the present invention, the main body portion includes an equipment plate, cables, trapezoidal plates and fixing blocks. Cables fixedly connected to the winding ends of a winder are slidably penetrated through the four corners of the upper end surface of the support plate. The lower ends of the four cables are jointly fixedly installed with an equipment plate located directly below the support plate. Symmetrically arranged trapezoidal plates are fixedly installed on the equipment plate. Three fixing blocks are fixedly installed on the lower end surface of the equipment plate in a linear array manner.

[0011] As a preferred technical solution of the present invention, the right limiting part includes a second slide, a limiting slide, a positioning pillar and an insertion rod. A second slide is opened on the right side of the lower end surface of the fixed block, and a limiting slide is slidably installed in the second slide. A socket is penetrated on the limiting slide. The left end surface of the limiting slide is fixedly installed with a positioning pillar for fixing the right end of the low-voltage winding in an array manner. The lower end surface of the fixed block is slidably penetrated by a support seat and an insertion rod slidably connected to the socket is installed.

[0012] As a preferred technical solution of the present invention, the left limit part includes a lifting rope, a limit block, a first reverse plate, a bolt and a second reverse plate. The lifting rope is fixedly installed on the left side of the lower end surface of the fixed block, and the limit block is fixedly installed on the lower end of the lifting rope. A sliding rail is provided in the limit block, and a bolt is installed through the bearing in the sliding rail. A first reverse plate for inserting into the gap of the low-voltage winding is fixedly installed on the left side of the inside of the sliding rail, and a second reverse plate threadedly connected to the bolt is slidably installed in the sliding rail.

[0013] As a preferred technical solution of the present invention, the inner support part includes a third slide, a second bidirectional screw and an inner support slide plate. The lower end surface of the fixed block is provided with a third slide located between the suspension rope and the second slide. The second bidirectional screw is installed through a bearing in the third slide. The inner support slide plate is slidably installed in the third slide, which is symmetrical front and back and threadedly connected to the corresponding second bidirectional screw.

[0014] As a preferred technical solution of the present invention, the clamping membrane part includes a special-shaped L-rod, a U-shaped bracket, a clamping groove, a fixed splint, an L-shaped splint and a buckle groove. A plurality of special-shaped L-rods distributed along the outer contour of the fixed block are fixedly installed on the left side of the lower end surface of the fixed block, and a U-shaped bracket located below the fixed block is fixedly installed on the lower ends of the plurality of special-shaped L-rods. A plurality of clamping grooves evenly distributed along the contour of the U-shaped bracket are penetrated through the U-shaped bracket, and a fixed splint corresponding to the clamping groove is fixedly installed on the lower end surface of the U-shaped bracket. Two buckle grooves symmetrical about the center of the hinge point of the L-shaped splint are opened in the clamping groove. An L-shaped splint cooperating with the fixed splint is hinged in the clamping groove, and rubber protrusions corresponding to the buckle grooves are fixedly installed on the L-shaped splint.

[0015] As a preferred technical solution of the present invention, the lifting part includes a screw barrel, a second motor, a screw rod, a clamping frame and a guide rod. The upper end surface of the equipment plate is penetrated by a bearing to install a front-and-back symmetrical screw barrel, and a second pulley is fixedly sleeved on the screw barrel. The second pulleys are connected by a second belt transmission. A second motor is fixedly installed on the upper end of the equipment plate, and the output end of the second motor is connected to one of the screw barrels through a gear set. A screw rod is connected to the inner thread of the screw barrel, and a clamping frame is fixedly installed at the lower end of the front-and-back symmetrical screw rods. A guide rod that is symmetrical left and right and slides through the corresponding trapezoidal plate is fixedly installed on the upper end surface of the clamping frame.

[0016] As a preferred technical solution of the present invention, the clamping portion includes a fourth slideway, a third bidirectional screw, a third motor, a first clamping plate, a second clamping plate and a limiting groove. Symmetric fourth slideways are provided on the front and rear side walls inside the clamping frame. The third bidirectional screw is installed through the fourth slideway by means of bearings. Third belt pulleys are fixedly sleeved on the right ends of the third bidirectional screws. The third belt pulleys are connected by a third belt provided therebetween. A third motor with an output end fixedly connected to one of the third bidirectional screws is fixedly installed on the clamping frame. A first clamping plate threaded with the third bidirectional screw is slidably installed between the front and rear fourth slideways. A second clamping plate corresponding to the first clamping plate and threaded with the third bidirectional screw is slidably installed between the front and rear fourth slideways. A limiting groove for limiting the protruding portion of the high-voltage winding is provided on the second clamping plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. For this stator core and winding assembly equipment for manufacturing transformers, through the combined use of the positioning mechanism, the hoisting mechanism and the clamping mechanism, when assembling the stator core and the windings, synchronous integrated hoisting, positioning and assembly are performed on multiple low-voltage windings, insulating layers and high-voltage windings on the stator core, improving the assembly accuracy and production efficiency, and enhancing the reliability and safety of the transformer. By adjusting the assembly equipment with reference to the position of the stator core, strict alignment of the windings and the insulating layer is ensured. Secondly, the low-voltage windings are firmly hoisted and an insulating layer is appropriately added. Finally, position limitation is performed through the special protrusions of the high-voltage windings to ensure accurate winding alignment, simplifying the assembly process, thereby ensuring that the assembly quality of each transformer remains consistent, reducing quality fluctuations, improving the reliability of the product, and ensuring the safety of the workplace and the long-term stability of the transformer.

[0018] 2. For this stator core and winding assembly equipment for manufacturing transformers, through the provided positioning mechanism, the position of the equipment is adjusted with reference to the position of the stator core to ensure that the positions of the subsequent installed windings and insulating layer are strictly aligned with the stator core, thereby improving the overall assembly accuracy, enhancing the reliability of the transformer, reducing the dependence on highly skilled workers, reducing the long-term labor cost, and at the same time reducing the labor intensity of the workers and the safety risks in the workplace.

[0019] 3. For this stator core and winding assembly equipment for manufacturing transformers, through the provided hoisting mechanism, multiple low-voltage windings are hoisted and fixed, and at the same time, the insulating layer is sleeved outside the low-voltage windings in a suitable shape, providing stability and safety for the long-term operation of the transformer, accelerating the assembly process, improving the overall production efficiency, and providing internal support for the low-voltage windings during the clamping process to avoid direct contact between the low-voltage windings and the stator core during the installation process, thereby reducing the risk of physical damage and electrical short circuit of the windings.

[0020] 4. The stator core and winding assembly equipment for manufacturing transformers uses the provided clamping mechanism to lift and fix multiple high-voltage windings simultaneously, and limit their positions according to the special protrusions of the high-voltage windings to achieve precise alignment of the positions between the windings, thereby ensuring that the gaps between the windings and between the windings and the iron core meet the requirements, optimizing the electromagnetic performance and reducing electrical interference, and simplifying the assembly process, reducing installation errors caused by improper human operation, and further improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram when the present invention is working.

[0022] Figure 2 It is a bottom three-dimensional structural schematic diagram of the present invention.

[0023] Figure 3 It is a partial three-dimensional structural schematic diagram of the positioning mechanism of the present invention.

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0025] Figure 5 It is a bottom three-dimensional structural schematic diagram of the lifting mechanism of the present invention.

[0026] Figure 6 is Figure 5 an enlarged structural schematic diagram at A in

[0027] Figure 7 It is a partial cross-sectional structural schematic diagram of the film clamping part of the present invention.

[0028] Figure 8 It is a partial three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0029] Figure 9 It is a three-dimensional structural schematic diagram of the stator core and windings.

[0030] In the figure: 1, support plate; 2, trapezoidal bracket; 3, rewinder; 4, positioning mechanism; 41, driving part; 411, first slideway; 412, first bidirectional screw; 413, first motor; 414, universal wheel; 42, positioning part; 421, positioning slider; 422, articulated rod; 423, right-angle clamping block; 5, hoisting mechanism; 51, main body part; 511, equipment plate; 512, cable; 513, trapezoidal plate; 514, fixed block; 52, right limiting part; 521, second slideway; 522, limiting slide plate; 523, positioning support pillar; 524, inserting rod; 53, left limiting part; 531, lifting rope; 532, limiting block; 533, first inverted U-shaped plate; 534, bolt; 535, second inverted U-shaped plate; 54, inner supporting part; 541, third slideway; 542, second bidirectional screw; 543, inner supporting slide plate; 55, film clamping part; 551, special-shaped L rod; 552, U-shaped bracket; 553, clamping groove; 554, fixed clamping plate; 555, L-shaped clamping plate; 556, buckling groove; 6, clamping mechanism; 61, lifting part; 611, screw barrel; 612, second motor; 613, lead screw; 614, clamping frame; 615, guiding rod; 62, clamping part; 621, fourth slideway; 622, third bidirectional screw; 623, third motor; 624, first clamping plate; 625, second clamping plate; 626, limiting groove. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figure 1 , a stator core and winding assembly device for transformer manufacturing, including a support plate 1, symmetrically arranged trapezoidal brackets 2 before and after fixedly installed on the support plate 1, and a rewinder 3 located at the center of the upper end surface of the support plate 1. A positioning mechanism 4 for determining the installation position with reference to the stator core is jointly arranged on the symmetrically arranged trapezoidal brackets 2 before and after; the positioning mechanism 4 includes a driving part 41 jointly arranged on the symmetrically arranged trapezoidal brackets 2 before and after, and a positioning part 42 for positioning the four corners of the stator core is arranged on the driving part 41.

[0033] Please refer to Figure 1 and Figure 2, a lifting mechanism 5 for synchronously lifting and fixing a plurality of low-voltage windings and an insulating layer is provided on the support plate 1; the lifting mechanism 5 includes a main body portion 51 provided on the support plate 1 for adjusting the lifting height, a left limiting portion 53 and a right limiting portion 52 provided on the main body portion 51 for respectively fixing the left and right ends of the low-voltage winding, an inner support portion 54 provided on the main body portion 51 for internally supporting and limiting the low-voltage winding, and a film clamping portion 55 for fixing and maintaining the shape of the insulating layer.

[0034] Please refer to Figure 1 , a clamping mechanism 6 for aligning and assembling the high-voltage winding, low-voltage winding and insulating layer in cooperation with the lifting mechanism 5 is provided on the main body portion 51; the clamping mechanism 6 includes a lifting portion 61 provided on the main body portion 51 for adjusting the position of the high-voltage winding, and a clamping portion 62 provided on the lifting portion 61 for synchronously lifting and fixing a plurality of high-voltage windings.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , the driving portion 41 includes a first slideway 411, a first bidirectional screw 412, a first motor 413 and universal wheels 414. First slideways 411 are provided on the sides where the lower ends of the front and rear symmetric trapezoidal brackets 2 are close to each other. A first bidirectional screw 412 is installed through the first slideway 411 by means of bearings. First belt wheels are fixedly sleeved on the right ends of the first bidirectional screws 412. The first belt wheels are connected by a first belt provided therebetween. A first motor 413 with an output end fixedly connected to the corresponding first bidirectional screw 412 is fixedly installed on the rear trapezoidal bracket 2. Universal wheels 414 that are symmetric left and right are fixedly installed on the lower end surfaces of the trapezoidal brackets 2.

[0036] Please refer to Figure 2 , Figure 4 and Figure 5 , the main body portion 51 includes an equipment plate 511, a cable 512, a trapezoidal plate 513 and a fixing block 514. Cables 512 fixedly connected to the winding ends of the winding machine 3 are slidably installed through the four corners of the upper end surface of the support plate 1. The lower ends of the four cables 512 are jointly fixedly installed with an equipment plate 511 located directly below the support plate 1. Symmetric trapezoidal plates 513 are fixedly installed on the equipment plate 511. Three fixing blocks 514 are fixedly installed on the lower end surface of the equipment plate 511 in a linear array.

[0037] Please refer to Figure 2 and Figure 5, the right limit part 52 includes a second sliding track 521, a limiting sliding plate 522, a positioning support column 523 and a plug rod 524. A second sliding track 521 is provided on the right side of the lower end face of the fixed block 514. A limiting sliding plate 522 is slidably installed in the second sliding track 521. A jack is provided through the limiting sliding plate 522. The left end face of the limiting sliding plate 522 is fixedly installed with positioning support columns 523 for fixing the right end of the low-voltage winding in an array manner. The lower end face of the fixed block 514 is slidably penetrated through a support seat provided with a plug rod 524 slidably connected to the jack.

[0038] Please refer to Figure 2 , Figure 5 and Figure 6 , the left limit part 53 includes a suspension rope 531, a limiting block 532, a first inverted U-shaped plate 533, a bolt 534 and a second inverted U-shaped plate 535. A suspension rope 531 is fixedly installed on the left side of the lower end face of the fixed block 514. A limiting block 532 is fixedly installed at the lower end of the suspension rope 531. A slide rail is provided in the limiting block 532. A bolt 534 is penetrated through the slide rail through a bearing. A first inverted U-shaped plate 533 for inserting into the gap of the low-voltage winding is fixedly installed on the left side inside the slide rail. A second inverted U-shaped plate 535 threadedly connected to the bolt 534 is slidably installed in the slide rail.

[0039] During specific operation, when assembling the stator core and the winding, the worker first places the three low-voltage windings side by side at the corresponding positions, then pushes the trapezoidal bracket 2 to push the support plate 1 to directly above the low-voltage winding through the universal wheels 414, and then starts the winding machine 3 to release the cable 512 so that the equipment plate 511 descends, and stops the operation of the winding machine 3 when the equipment plate 511 moves down to correspond to the fixed block 514 and the low-voltage winding.

[0040] At this time, the worker slides one of the limiting sliding plates 522 to the left until the positioning support column 523 is inserted into the hole of the low-voltage outgoing copper bar, and then inserts the plug rod 524 into the jack of the limiting sliding plate 522 to fix the limiting sliding plate 522 on the second sliding track 521, thus completing the fixation of the right end of the low-voltage winding. Then, the corresponding suspension rope 531 is pulled to make both the first inverted U-shaped plate 533 and the second inverted U-shaped plate 535 inserted into the gap of the low-voltage winding. At this time, the worker holds an electric rotary tool to rotate the bolt 534 to make the second inverted U-shaped plate 535 approach the first inverted U-shaped plate 533 until the two fix the left end of the low-voltage winding, thereby completing the fixation of a single low-voltage winding.

[0041] Please refer to Figure 2 and Figure 5, the inner support part 54 includes a third slideway 541, a second bidirectional screw 542 and an inner support slide plate 543. The lower end surface of the fixed block 514 is provided with a third slideway 541 located between the suspension rope 531 and the second slideway 521. A second bidirectional screw 542 is installed through the third slideway 541 via a bearing. In the third slideway 541, inner support slide plates 543 which are symmetric front and back and are threadedly connected to the corresponding second bidirectional screw 542 are slidably installed.

[0042] During specific operation, after the right limit part 52 and the left limit part 53 cooperate to complete the fixation of the low-voltage winding, continue to use a hand-held electric rotary tool to rotate the second bidirectional screw 542, so that the inner support slide plates 543 on both sides move away synchronously. The moving-away inner support slide plates 543 will support from the inside to the outside of the low-voltage winding, thereby maintaining the shape of the low-voltage winding and preventing the low-voltage winding from directly contacting the stator core during the installation process. After the operation on the first low-voltage winding is completed, repeat the above operation until all the low-voltage windings are fixed. At this time, the winding machine 3 can be started to make the equipment board 511 drive the clamped and fixed multiple low-voltage windings to rise a certain distance.

[0043] Please refer to Figure 2 , Figure 5 and Figure 7 , the film clamping part 55 includes a special-shaped L rod 551, a U-shaped bracket 552, a clamping groove 553, a fixed clamping plate 554, an L-shaped clamping plate 555 and a buckling groove 556. A plurality of special-shaped L rods 551 distributed along the outer contour of the fixed block 514 are fixedly installed on the left side of the lower end surface of the fixed block 514. A U-shaped bracket 552 located below the fixed block 514 is fixedly installed together at the lower ends of the plurality of special-shaped L rods 551. A plurality of clamping grooves 553 evenly distributed along the contour of the U-shaped bracket 552 are penetrated through the U-shaped bracket 552. Fixed clamping plates 554 corresponding to the clamping grooves 553 one by one are fixedly installed on the lower end surface of the U-shaped bracket 552. An L-shaped clamping plate 555 cooperating with the fixed clamping plate 554 is hinged in the clamping groove 553. Two buckling grooves 556 which are centrosymmetric about the hinge point of the L-shaped clamping plate 555 are opened in the clamping groove 553. Rubber bumps corresponding to the buckling grooves 556 one by one are fixedly installed on the L-shaped clamping plate 555.

[0044] During specific operation, after raising multiple low-voltage windings by a certain distance, workers respectively put insulating layers on the outer sides of the low-voltage windings, and make the uppermost ends of the insulating layers fit with the lower end faces of the U-shaped brackets 552. Then, press the outer sides of the L-shaped clamping plates 555 one by one, so that the L-shaped clamping plates 555 rotate until their lower ends cooperate with the fixed clamping plates 554 to clamp and fix the upper ends of the insulating layers. At this time, the rubber bumps are stuck into the buckle grooves 556, thereby restricting the rotation of the L-shaped clamping plates 555. After all the L-shaped clamping plates 555 on the same U-shaped bracket 552 are clamped, the insulating layers will be sleeved on the outer sides of the low-voltage windings in a suitable shape. Subsequently, the above operations can be repeated to continue the fixation of other insulating layers. After the fixation is completed, the multiple insulating layers and the low-voltage windings form a whole for fixed hoisting.

[0045] Please refer to Figure 1 、 Figure 4 and Figure 8 As shown in FIGS.

[0046] Please refer to Figure 1 、 Figure 4 and Figure 8 The lifting part 61 includes a screw cylinder 611, a second motor 612, a lead screw 613, a clamping frame 614 and a guide rod 615. The upper end face of the equipment plate 511 is installed with symmetric screw cylinders 611 before and after through bearings. Second belt pulleys are fixedly sleeved on the screw cylinders 611, and the second belt pulleys are connected by a second belt arranged therebetween. A second motor 612 is fixedly installed on the upper end of the equipment plate 511, and the output end of the second motor 612 is connected to one of the screw cylinders 611 through a gear set arranged therebetween. A lead screw 613 is connected to the screw cylinder 611 by internal threads. The lower ends of the symmetric lead screws 613 before and after are jointly fixedly installed with a clamping frame 614. The upper end face of the clamping frame 614 is fixedly installed with symmetric guide rods 615 on the left and right that slide through the corresponding trapezoidal plates 513.

[0047] During the specific operation, after the hoisting mechanism 5 completes the hoisting and fixing of multiple insulating layers and low-voltage windings, the worker places multiple high-voltage windings on the ground and moves the support plate 1 directly above the high-voltage windings. At this time, the second motor 612 is started to rotate the corresponding screw barrel 611 through the gear set, and the screw barrels 611 on both sides will rotate synchronously through the cooperation of the second pulley and the second belt, so as to lower the clamping frame 614 through the cooperation with the lead screw 613. During the lowering process of the clamping frame 614, the guide rod 615 slides in the trapezoidal plate 513, so as to ensure the stable lowering of the clamping frame 614. When the limit groove 626 corresponds to the protruding position of the corresponding high-voltage winding, the second motor 612 stops running.

[0048] Then, the third motor 623 is started to drive the corresponding third double-headed screw 622 to rotate. Under the cooperation of the third pulley and the third belt, the third double-headed screws 622 on both sides rotate synchronously, so as to drive the first clamping plate 624 and the second clamping plate 625 to approach each other synchronously until the first clamping plate 624 and the second clamping plate 625 clamp and fix multiple high-voltage windings, so as to perform synchronous lateral fixation on multiple high-voltage windings. At the same time, the protruding part of the high-voltage winding is just located in the limit groove 626, and the limit groove 626 performs vertical fixation on the high-voltage winding. In this way, the hoisting and fixing of multiple high-voltage windings are completed at the same time.

[0049] Subsequently, the second motor 612 is started in reverse to lift the fixed high-voltage winding through the lifting part 61 and dock it with the already fixed insulating layer and low-voltage winding, so that the high-voltage winding is sleeved outside the insulating layer, and the insulating layer is sleeved outside the low-voltage winding. During the hoisting process, the alignment and assembly of multiple groups of high-voltage windings, low-voltage windings and insulating layers are completed, so as to improve the assembly efficiency and realize the precise alignment of the positions between the windings.

[0050] Please refer to Figure 1 、 Figure 2 and Figure 3 As shown in, the positioning part 42 includes a positioning slider 421, a hinge rod 422 and a right-angle clamp 423. The positioning sliders 421 which are symmetric left and right and threadedly connected to the corresponding first double-headed screw 412 are slidably installed in the first slideway 411. One side wall of the positioning slider 421 away from the corresponding first double-headed screw 412 is hinged with a hinge rod 422 through a torsion spring arranged, and the other ends of the hinge rods 422 which are symmetric left and right on the same first slideway 411 are fixedly installed with corresponding right-angle clamps 423.

[0051] During the actual operation, after the clamping mechanism 6 and the hoisting mechanism 5 cooperate to complete the alignment and assembly of multiple high-voltage windings, low-voltage windings, and insulating layers, the worker pushes the trapezoidal support 2 to move the fixed windings directly above the stator core. Then, the first motor 413 is started to drive the corresponding first bidirectional screw 412 to rotate, and through the cooperation of the first pulley and the first belt, the first bidirectional screws 412 on both sides rotate synchronously, thereby driving the corresponding symmetrically located positioning sliders 421 to approach synchronously until the right-angle clamping blocks 423 are stuck at the four corners of the stator core, thus completing the fixation of the stator core. At the same time, the installation position is adjusted with reference to the position of the stator core, so as to ensure that the positions of the windings and the insulating layer are strictly aligned with the stator core. During this process, since the hinge rod 422 is in a hinged state and can rotate, the hinge rod 422 is prevented from blocking the movement of the equipment.

[0052] Start the winding machine 3 to make the equipment board 511 descend with multiple groups of high-voltage windings, low-voltage windings, and insulating layers that are fixed and aligned, so as to install the butt-jointed windings on the corresponding iron cores. After the equipment board 511 descends a certain distance, reverse-start the third motor 623 to release the fixation of the high-voltage winding, and then release the fixation of the low-voltage winding and the insulating layer. In this way, the synchronous integrated hoisting, positioning, and assembly of the stator core and the windings are completed, thereby improving the assembly accuracy and production efficiency.

[0053] Please refer to Figures 1 - 9 , working principle: When assembling the stator core and the windings, the worker first places three low-voltage windings side by side in the corresponding positions, then pushes the support plate 1 directly above the low-voltage windings, and then starts the winding machine 3 to make the equipment board 511 descend. When the equipment board 511 moves down to the position where the fixed block 514 corresponds to the low-voltage windings, stop the operation of the winding machine 3. Then, the worker inserts the positioning strut 523 into the hole of the low-voltage outgoing copper bar to fix the right end of the low-voltage winding through the right limiting part 52, and then fixes the left end of the low-voltage winding through the left limiting part 53. Subsequently, the inner support part 54 is used to support the inside of the low-voltage winding. After the operation on the first low-voltage winding is completed, repeat the above operations until all the low-voltage windings are fixed.

[0054] Subsequently, start the winding machine 3 to make the equipment board 511 rise a certain distance with multiple low-voltage windings that are clamped and fixed. Then, the worker sleeves the insulating layers on the outside of the low-voltage windings respectively, and sleevs the insulating layers on the outside of the low-voltage windings in a suitable shape through the film clamping part 55. Subsequently, the above operations can be repeated to continue the fixation of other insulating layers. After the fixation is completed, multiple insulating layers and low-voltage windings are formed into a whole for fixed hoisting.

[0055] Subsequently, the worker places multiple high-voltage windings on the ground, moves the support plate 1 directly above the high-voltage windings, starts the second motor 612, and drives the clamping frame 614 to descend through the lifting part 61. When the limit groove 626 corresponds to the protruding position of the corresponding high-voltage winding, stop the second motor 612. Then start the third motor 623 to simultaneously complete the hoisting and fixing of multiple high-voltage windings through the clamping part 62. Then reverse-start the second motor 612 to raise the fixed high-voltage winding through the lifting part 61 and dock it with the already fixed insulating layer and low-voltage winding.

[0056] After completing the alignment and assembly of the windings, the worker pushes the trapezoidal bracket 2 to move the fixed windings directly above the stator core. Then start the first motor 413 to fix the stator core through the positioning mechanism 4 and adjust the installation position at the same time. Subsequently, start the winding machine 3 to make the equipment plate 511 drive the fixed and aligned multiple groups of high-voltage windings, low-voltage windings, and insulating layers to descend, so as to install the docked windings on the corresponding core. After the equipment plate 511 descends a certain distance, reverse-start the third motor 623 to release the fixation of the high-voltage winding. Then release the fixation of the low-voltage winding and the insulating layer through a hand-held electric rotary tool. In this way, the synchronous integrated hoisting, positioning, and assembly of the stator core and the windings are completed.

[0057] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stator core and winding assembly device for transformer manufacturing, including a support plate, characterized in that: On the support plate, trapezoidal brackets that are symmetrically arranged front and back and a winder located at the center of the upper end face of the support plate are fixedly installed. A positioning mechanism for determining the installation position with reference to the stator core is jointly arranged on the trapezoidal brackets that are symmetrically arranged front and back. The positioning mechanism includes a driving part jointly arranged on the trapezoidal brackets that are symmetrically arranged front and back, and a positioning part for positioning the four corners of the stator core is arranged on the driving part. A hoisting mechanism for synchronously hoisting and fixing a plurality of low-voltage windings and insulating layers is arranged on the support plate. The hoisting mechanism includes a main body part arranged on the support plate for adjusting the hoisting height. A left limit part and a right limit part for respectively fixing the left and right ends of the low-voltage winding are arranged on the main body part. An inner support part for inner support and limit of the low-voltage winding and a film clamping part for fixing and maintaining the shape of the insulating layer are also arranged on the main body part. A clamping mechanism for cooperating with the hoisting mechanism to perform alignment and assembly of the high-voltage winding, low-voltage winding, and insulating layer is arranged on the main body part. The clamping mechanism includes a lifting part arranged on the main body part for adjusting the position of the high-voltage winding, and a clamping part for synchronously hoisting and fixing a plurality of high-voltage windings is arranged on the lifting part. The main body part includes a fixed block. The right limit part includes a second slideway, a limit slide plate, a positioning pillar, and a plug rod. A second slideway is opened on the right side of the lower end face of the fixed block. A limit slide plate is slidably installed in the second slideway. A jack is penetrated through the limit slide plate. Positioning pillars for fixing the right end of the low-voltage winding are fixedly installed on the left end face of the limit slide plate in an array manner. A plug rod that is slidably connected with the jack is slidably penetrated and installed through a support seat arranged on the lower end face of the fixed block. The left limit part includes a lifting rope, a limit block, a first inverted U-shaped plate, a bolt, and a second inverted U-shaped plate. A lifting rope is fixedly installed on the left side of the lower end face of the fixed block. A limit block is fixedly installed at the lower end of the lifting rope. A slide rail is opened in the limit block. A bolt is penetrated through the slide rail through a bearing. A first inverted U-shaped plate for inserting into the gap of the low-voltage winding is fixedly installed on the left side inside the slide rail. A second inverted U-shaped plate that is threadedly connected with the bolt is slidably installed in the slide rail.

2. A stator core and winding assembly device for manufacturing a transformer according to claim 1, characterized in that: The driving part includes a first slideway, a first bidirectional screw, a first motor, and a universal wheel. A first slideway is opened on one side where the lower ends of the trapezoidal brackets that are symmetrically arranged front and back are close to each other. A first bidirectional screw is penetrated through the first slideway through a bearing. First belt pulleys are fixedly sleeved on the right ends of the first bidirectional screws. The first belt pulleys are connected by a first belt arranged therebetween. A first motor with an output end fixedly connected to the corresponding first bidirectional screw is fixedly installed on the rear trapezoidal bracket. Universal wheels that are symmetrically arranged left and right are fixedly installed on the lower end faces of the trapezoidal brackets.

3. A stator core and winding assembly device for manufacturing a transformer according to claim 2, characterized in that: The positioning part includes a positioning slider, a hinged rod, and a right-angled clamp block. Positioning sliders that are symmetrically arranged left and right and are threadedly connected with the corresponding first bidirectional screws are slidably installed in the first slideway. The other side wall of the positioning slider away from the corresponding first bidirectional screw is hinged with a hinged rod through a torsion spring. The other ends of the hinged rods that are symmetrically arranged left and right on the same first slideway are fixedly installed with corresponding right-angled clamp blocks.

4. A stator core and winding assembly device for manufacturing a transformer according to claim 1, characterized in that: The main body also includes an equipment plate, cables and a trapezoidal plate. Cables fixedly connected to the winding end of the winder are slidably installed at the four corners of the upper end surface of the support plate. The lower ends of the four cables are jointly fixed with an equipment plate located directly below the support plate. A left-right symmetrical trapezoidal plate is fixedly installed on the equipment plate, and three fixed blocks are fixedly installed on the lower end surface of the equipment plate in a linear array.

5. A stator core and winding assembly device for manufacturing a transformer according to claim 1, characterized in that: The inner support part includes a third slide, a second bidirectional screw and an inner support slide plate. The lower end surface of the fixed block is provided with a third slide located between the suspension rope and the second slide. The second bidirectional screw is installed through a bearing in the third slide. The inner support slide plate is slidably installed in the third slide which is symmetrical front and back and threadedly connected to the corresponding second bidirectional screw.

6. A stator core and winding assembly device for manufacturing a transformer according to claim 4, characterized in that: The clamping membrane part includes a special-shaped L-rod, a U-shaped bracket, a clamping groove, a fixed splint, an L-shaped splint and a buckle groove. A plurality of special-shaped L-rods distributed along the outer contour of the fixed block are fixedly installed on the left side of the lower end surface of the fixed block. A U-shaped bracket located below the fixed block is fixedly installed on the lower ends of the plurality of special-shaped L-rods. A plurality of clamping grooves evenly distributed along the contour of the U-shaped bracket are penetrated through the U-shaped bracket. A fixed splint corresponding to the clamping groove is fixedly installed on the lower end surface of the U-shaped bracket. An L-shaped splint cooperating with the fixed splint is hinged in the clamping groove. Two buckle grooves symmetrical about the center of the hinge point of the L-shaped splint are opened in the clamping groove. Rubber protrusions corresponding to the buckle grooves are fixedly installed on the L-shaped splint.

7. A stator core and winding assembly device for manufacturing a transformer according to claim 4, characterized in that: The lifting part includes a screw barrel, a second motor, a screw rod, a clamping frame and a guide rod. The upper end surface of the equipment plate is penetrated by a bearing to install a screw barrel that is symmetrical in front and back. A second pulley is fixedly sleeved on the screw barrel, and the second pulleys are connected by a second belt transmission. The second motor is fixedly installed on the upper end of the equipment plate, and the output end of the second motor is connected to one of the screw barrels through a gear set. The screw barrel is threaded with a screw rod, and the lower ends of the screw rods that are symmetrical in front and back are jointly fixedly installed with a clamping frame. The upper end surface of the clamping frame is fixedly installed with a guide rod that is symmetrical in left and right and slides through the corresponding trapezoidal plate.

8. A stator core and winding assembly device for manufacturing a transformer according to claim 7, characterized in that: The clamping part includes a fourth slide, a third bidirectional screw, a third motor, a first clamping plate, a second clamping plate and a limiting groove. A symmetrical fourth slide is provided on the front and rear side walls inside the clamping frame. The third bidirectional screw is installed through a bearing in the fourth slide. A third pulley is fixedly sleeved on the right end of the third bidirectional screw. The third pulleys are connected by a third belt transmission. A third motor with an output end fixedly connected to one of the third bidirectional screws is fixedly installed on the clamping frame. A first clamping plate threadedly connected to the third bidirectional screw is slidably installed between the front and rear fourth slides. A second clamping plate corresponding to the first clamping plate and threadedly connected to the third bidirectional screw is slidably installed between the front and rear fourth slides. A limiting groove for limiting the protruding part of the high-voltage winding is provided on the second clamping plate.

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