Stator core and winding assembling equipment for transformer manufacturing

Abstract

The invention relates to the technical field of transformer manufacturing, in particular to transformer manufacturing stator core and winding assembling equipment which comprises a supporting plate, trapezoidal supports which are symmetrical front and back are fixedly installed on the supporting plate, and a positioning mechanism used for determining the installation position by referring to a stator core is jointly arranged on the trapezoidal supports which are symmetrical front and back. The multiple sets of low-voltage windings, insulating layers and high-voltage windings on the stator iron core are synchronously and integrally hoisted, positioned and assembled, the assembly precision and the production efficiency are improved, the assembly equipment is adjusted by referring to the position of the stator iron core, strict alignment of the windings and the insulating layers is ensured, and the production efficiency is improved. Secondly, the low-voltage winding is stably hoisted, an insulating layer is properly added, finally, position limiting is conducted through a special protrusion of the high-voltage winding, accurate winding alignment is ensured, the assembly process is simplified, and therefore it is ensured that the assembly quality of all transformers is kept consistent, quality fluctuation is reduced, and the product reliability is improved; and the safety of a working place and the long-term stability of the transformer are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer manufacturing, and specifically 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 the windings is one of the important steps in the manufacturing of dry-type transformers. Only by ensuring that the stator core and the 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 in the assembly of the stator core and the windings: 1. The assembly of the stator core and the windings is mainly carried out manually. Workers need to hoist the high-voltage windings one by one onto the stator core and adjust their positions, then place the insulating layers one by one between the high-voltage windings and the stator core, and then hoist the low-voltage windings one by one between the stator core and the insulating layer. 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 risks in the workplace. 2. During the installation of the low-voltage windings and the high-voltage windings, workers need to continuously manually adjust the positions of the hoisted low-voltage windings and high-voltage windings. However, it is very difficult to achieve the required accuracy by manual adjustment, which results 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 the windings are accurately assembled together and to 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 arranged on the support plate; the hoisting mechanism includes a main body portion arranged on the support plate for adjusting the hoisting height, a left limiting portion and a right limiting portion arranged on the main body portion for respectively fixing the left and right ends of the low-voltage winding, an inner support portion arranged on the main body portion for internally supporting and limiting the low-voltage winding, and a film clamping portion arranged on the main body 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 arranged on the main body portion; the clamping mechanism includes a lifting portion arranged on the main body portion for adjusting the position of the high-voltage winding, and a clamping portion arranged 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 opened on one side close to each other at the lower ends of the symmetrically arranged front and rear trapezoidal brackets. A first bidirectional screw is installed through the first slideway by means of bearings. First belt wheels are fixedly sleeved on the right ends of the first bidirectional screws. The first belt wheels 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 are symmetrically fixedly installed on the lower end surface of the trapezoidal bracket.

[0009] As a preferred technical solution of the present invention, the positioning portion includes positioning sliders, hinge rods and right-angle clamping blocks. Positioning sliders which are symmetrically arranged left and right and are in threaded connection with the corresponding first bidirectional screws are slidably installed in the first slideway. Hinge rods are hinged to the side wall of the positioning slider far away from the corresponding first bidirectional screw by means of torsion springs. The other ends of the hinge rods symmetrically arranged left and right on the same first slideway are fixedly installed with corresponding right-angle clamping blocks.

[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 part 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 carried out 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 limiting is carried out through the special protrusions of the high-voltage windings to ensure precise 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 for subsequently installing the windings and the 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 prevent the low-voltage windings from directly contacting 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 this transformer, through the set clamping mechanism, hoists and fixes multiple high-voltage windings simultaneously, and limits 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 manual operation, and further improving the 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 hoisting 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 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, hinged 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 limit part; 521, second slideway; 522, limit sliding plate; 523, positioning support column; 524, insertion rod; 53, left limit part; 531, suspension rope; 532, limit block; 533, first inverted U-shaped plate; 534, bolt; 535, second inverted U-shaped plate; 54, inner support part; 541, third slideway; 542, second bidirectional screw; 543, inner support sliding 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, guide rod; 62, clamping part; 621, fourth slideway; 622, third bidirectional screw; 623, third motor; 624, first clamping plate; 625, second clamping plate; 626, limit groove. Detailed implementation manners

[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, symmetric trapezoidal brackets 2 are fixedly installed on the support plate 1 before and after, and a rewinder 3 is 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 symmetric trapezoidal brackets 2 before and after; the positioning mechanism 4 includes a driving part 41 jointly arranged on the symmetric 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 hoisting mechanism 5 for synchronously hoisting and fixing a plurality of low-voltage windings and an insulating layer is provided on the support plate 1; the hoisting mechanism 5 includes a main body part 51 provided on the support plate 1 for adjusting the hoisting height, a left limiting part 53 and a right limiting part 52 provided on the main body part 51 for respectively fixing the left and right ends of the low-voltage winding, an inner supporting part 54 provided on the main body part 51 for internally supporting and limiting the low-voltage winding, and a film clamping part 55 for fixing and maintaining the shape of the insulating layer.

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

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , the driving part 41 includes a first slideway 411, a first bidirectional screw 412, a first motor 413 and universal wheels 414. First slideways 411 are opened on the sides close to each other at the lower ends of the trapezoidal brackets 2 that are symmetrically arranged front and back. A first bidirectional screw 412 is installed through the first slideways 411 by 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 symmetrically arranged 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 part 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 penetrated and installed at the four corners of the upper end surface of the support plate 1. The lower ends of the four cables 512 are commonly fixedly installed with an equipment plate 511 located directly below the support plate 1. Symmetrically arranged 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 manner.

[0037] Please refer to Figure 2 and Figure 5, the right limit part 52 includes a second slideway 521, a limit slide plate 522, a positioning support column 523 and a plug rod 524. A second slideway 521 is opened on the right side of the lower end face of the fixed block 514. A limit slide plate 522 is slidably installed in the second slideway 521. A jack is penetrated through the limit slide plate 522. The left end face of the limit slide 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 and installed 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 limit 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. The lower end of the suspension rope 531 is fixedly installed with a limit block 532. A slide rail is opened in the limit block 532. A bolt 534 is penetrated through the slide rail through a bearing. The left side inside the slide rail is fixedly installed with a first inverted U-shaped plate 533 for inserting into the gap of the low-voltage winding. 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 limit slide plates 522 to the left until the positioning support column 523 is inserted into the hole of the low-voltage outgoing copper bar, then inserts the plug rod 524 into the jack of the limit slide plate 522 to fix the limit slide plate 522 on the second slideway 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. A third slideway 541 located between the suspension rope 531 and the second slideway 521 is formed on the lower end surface of the fixed block 514. A second bidirectional screw 542 is installed through the third slideway 541 via a bearing. Inner support slide plates 543 that are symmetrically arranged front and back and threadedly connected to the corresponding second bidirectional screw 542 are slidably installed in the third slideway 541.

[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 number 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 number of special-shaped L rods 551. A number of clamping grooves 553 evenly distributed along the contour of the U-shaped bracket 552 are formed 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. L-shaped clamping plates 555 that cooperate with the fixed clamping plates 554 are hinged in the clamping grooves 553. Two buckling grooves 556 that are centrosymmetric about the hinge point of the L-shaped clamping plate 555 are formed in the clamping grooves 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 fixing other insulating layers. After the fixing 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 barrel 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 barrels 611 before and after through bearings. Second belt pulleys are fixedly sleeved on the screw barrels 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 barrels 611 through a gear set arranged therebetween. A lead screw 613 is threadedly connected in the screw barrel 611. The lower ends of the symmetric lead screws 613 before and after are jointly fixedly installed with a clamping frame 614. Guide rods 615 that are symmetric left and right and slide through the corresponding trapezoidal plates 513 are fixedly installed on the upper end face of the clamping frame 614.

[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 screw rod 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 bidirectional screw 622 to rotate. Under the cooperation of the third pulley and the third belt, the third bidirectional screws 622 on both sides rotate synchronously, so as to drive the first clamping plate 624 and the second clamping plate 625 to approach 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 raise 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 hinged rod 422 and a right-angle clamping block 423. The positioning slider 421 which is symmetric left and right and threadedly connected with the corresponding first bidirectional screw 412 is slidably installed in the first slideway 411. One side wall of the positioning slider 421 away from the corresponding first bidirectional screw 412 is hinged with a hinged rod 422 through a torsion spring arranged, and the other ends of the hinged rods 422 which are symmetric left and right on the same first slideway 411 are fixedly installed with corresponding right-angle clamping blocks 423.

[0051] During specific 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 bracket 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 symmetric 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 articulated rod 422 is in an articulated state and can rotate, the articulated rod 422 is prevented from blocking the movement of the equipment.

[0052] Start the coiling machine 3 to make the equipment board 511 descend with multiple groups of fixed and aligned high-voltage windings, low-voltage windings, and insulating layers, 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 coiling machine 3 to make the equipment board 511 descend. When the equipment board 511 moves down to the fixed block 514 corresponding to the low-voltage windings, stop the coiling machine 3. Then, the worker inserts the positioning support 523 into the hole of the low-voltage outgoing copper bar to fix the right end of the low-voltage winding through the right limit part 52, and then fixes the left end of the low-voltage winding through the left limit part 53. Subsequently, the inside of the low-voltage winding is supported by the inner support part 54. After the operation on the first low-voltage winding is completed, repeat the above operations until all low-voltage windings are fixed.

[0054] Subsequently, start the coiling machine 3 to make the equipment board 511 rise a certain distance with the clamped and fixed multiple low-voltage windings. Then, the worker sleeves the insulating layers on the outside of the low-voltage windings respectively, and sleeves 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 fixation, the multiple insulating layers and low-voltage windings are fixed and hoisted as a whole.

[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 to drive 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 operation of 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 handheld 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, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transformer manufacturing stator core and winding assembly equipment, including a support plate, characterized in that: The support plate is fixedly mounted with a front-to-back symmetrical trapezoidal bracket and a winder located at the center of the upper end surface of the support plate, and the front-to-back symmetrical trapezoidal bracket is commonly provided with a positioning mechanism for determining the installation position with reference to the stator core; The positioning mechanism comprises a driving part commonly arranged on a front-to-back symmetrical trapezoidal bracket, and the driving part is provided with a positioning part for positioning the four corners of the stator core; The support plate is provided with a hoisting mechanism for synchronously hoisting and fixing a plurality of low-voltage windings and insulation layers; The hoisting mechanism comprises a main body arranged on a support plate for adjusting the hoisting height, a left limiter and a right limiter are arranged on the main body for respectively fixing the left and right ends of the low-voltage winding, an inner supporter for internally supporting and limiting the low-voltage winding, and a film clamping part for fixing and maintaining the shape of the insulating layer; The main body is provided with a clamping mechanism for cooperating with the hoisting mechanism to align and assemble the high-voltage winding, the low-voltage winding and the insulation layer; The clamping mechanism comprises a lifting part arranged on the main body for adjusting the position of the high-voltage winding, and the lifting part is provided with a clamping part for synchronously lifting and fixing a plurality of high-voltage windings.

2. The transformer manufacturing stator core and winding assembly equipment according to claim 1, characterized in that: The driving part includes a first slide, a first bidirectional screw, a first motor and a universal wheel. A first slide is provided on one side of the lower ends of the front and rear symmetrical trapezoidal brackets close to each other. A first bidirectional screw is installed in the first slide through a bearing. A first pulley is fixedly sleeved on the right end of the first bidirectional screw. The first pulleys are connected by a first belt transmission. A first motor with an output end fixedly connected to the corresponding first bidirectional screw is fixedly installed on the rear trapezoidal bracket, and a left-right symmetrical universal wheel is fixedly installed on the lower end surface of the trapezoidal bracket.

3. The transformer manufacturing stator core and winding assembly equipment according to claim 2, characterized in that: The positioning part includes a positioning slider, an articulated rod and a right-angle clamp. A positioning slider is slidably installed in the first slideway, which is symmetrical on the left and right and threadedly connected to the corresponding first bidirectional screw. A side wall of the positioning slider away from the corresponding first bidirectional screw is hinged to the articulated rod through a torsion spring. The other ends of the articulated rods that are symmetrical on the left and right on the same first slideway are fixedly installed with corresponding right-angle clamps.

4. The transformer manufacturing stator core and winding assembly equipment according to claim 1, characterized in that: The main body includes an equipment plate, cables, a trapezoidal plate and a fixed block. 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. The transformer manufacturing stator core and winding assembly equipment according to claim 4, characterized in that: 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.

6. The transformer manufacturing stator core and winding assembly equipment according to claim 4, characterized in that: 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 arranged in the limit block, and a bolt is installed in the sliding rail through a bearing. 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.

7. The transformer manufacturing stator core and winding assembly equipment according to claim 6, 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.

8. The transformer manufacturing stator core and winding assembly equipment 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.

9. The transformer manufacturing stator core and winding assembly equipment 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.

10. The transformer manufacturing stator core and winding assembly equipment according to claim 9, 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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