Double-servo transformer iron core automatic lamination device

Abstract

The utility model discloses a double-servo transformer iron core automatic lamination device which comprises a base station and an iron core taking and placing device, the iron core taking and placing device comprises a gantry and two iron core grippers, and each iron core gripper comprises a lifting servo motor, a transverse movement servo motor, a transverse movement sliding plate, a lifting frame and a plurality of suction cups; the transverse moving sliding plate is connected with the transverse sliding rail in a sliding mode and driven by the transverse moving servo motor to move transversely. Sliding sleeves are arranged at the four corners of the transverse moving sliding plate correspondingly. The lifting frame comprises an upper frame plate, a lower frame plate and a plurality of vertical guide rods connected with the upper frame plate and the lower frame plate, and the vertical guide rods are slidably connected into the corresponding sliding sleeves in a sleeved mode. The lifting frame is driven by the lifting servo motor to ascend and descend. The multiple suction cups are arranged below the lower frame plate through vertically-arranged extension rods and used for adsorbing the iron core. According to the utility model, the efficiency of iron core lamination operation and the iron core lamination precision can be improved.

Description

Technical Field

[0001] This application relates to the field of electromagnetic core manufacturing technology, specifically to a dual-servo automatic lamination device for transformer cores. Background Technology

[0002] In the field of power equipment manufacturing, the lamination process of transformer cores directly affects the performance and production efficiency of transformers. Currently, there are significant technical limitations in the core lamination devices on the market. Some lamination devices are only equipped with a single core gripper, making it difficult to carry out the lamination process in parallel; some devices, although equipped with dual core grippers, share the same set of lateral and lifting devices, making it impossible for the two grippers to achieve completely independent motion control. This results in mutual obstruction during the lamination operation, greatly restricting the overall working efficiency of the equipment.

[0003] Furthermore, existing core clamps generally employ a fully suspended structure, with the entire clamp assembly suspended beneath the gantry. This design not only requires a large gantry to provide sufficient operating space, resulting in a significant increase in equipment footprint and excessive use of production space, but also, due to the lack of effective support and stable constraints during clamp movement, it is prone to swaying, severely affecting lamination accuracy, thereby reducing the quality of the finished core, increasing the defect rate, and failing to meet the demands of high-precision, high-efficiency modern production. Therefore, there is an urgent need for structural optimization and technological improvements to existing transformer core lamination devices. Utility Model Content

[0004] In view of the above problems, this application provides a dual-servo automatic lamination device for transformer cores to solve the technical problems of low working efficiency and low accuracy of the above lamination devices.

[0005] To achieve the above objectives, this application provides a dual-servo automatic lamination device for transformer cores, comprising:

[0006] A base is used to place a core fixing plate and a core support plate. The core fixing plate is located on both sides of the core support plate and is used to fix the core to be stacked.

[0007] The iron core handling device includes a gantry and two iron core grippers;

[0008] The gantry spans across the base and is equipped with a transverse slide rail; two iron core grippers are slidably mounted on the transverse slide rail for alternately gripping the iron core and stacking it on the iron core support plate.

[0009] The iron core gripper includes a lifting servo motor, a traverse servo motor, a traverse sliding plate, a lifting frame, and multiple suction cups; the traverse sliding plate is slidably connected to the transverse slide rail and is driven to traverse by the traverse servo motor; and sliding sleeves are respectively provided at the four corners of the traverse sliding plate.

[0010] The lifting frame includes an upper frame plate, a lower frame plate, and multiple vertical guide rods connecting the upper frame plate and the lower frame plate. The vertical guide rods are slidably sleeved in the corresponding sliding sleeves. The lifting frame is driven to lift by the lifting servo motor. Multiple suction cups are respectively set below the lower frame plate through vertically arranged extension rods for adsorbing the iron core.

[0011] Furthermore, the gantry frame extends through the middle of the lifting frame, wherein the upper frame plate is located above the crossbeam of the gantry frame, the lower frame plate is located below the crossbeam, and the crossbeam passes between the plurality of vertical guide rods.

[0012] Furthermore, the lifting servo motor is connected to the lifting frame via a lead screw assembly, which includes a lead screw and a lead screw nut. The lead screw is vertically arranged and its top is connected to the output end of the lifting servo motor. The bottom of the lead screw is mounted on the transverse sliding plate via a rotary bearing. The lead screw nut is movably mounted on the lead screw and fixedly mounted to the upper frame plate.

[0013] Furthermore, the iron core picking and placing device also includes a suction cup adjustment plate; the suction cup adjustment plate is fixedly disposed below the lower frame plate and includes multiple horizontal slide grooves and multiple vertical slide grooves; the top of the extension rod is slidably connected to the horizontal slide groove or the vertical slide groove.

[0014] Furthermore, the extension rod is a hollow tubular structure, with a telescopic inner tube sleeved at the bottom of the extension rod, and the suction cup is located at the bottom of the telescopic inner tube.

[0015] Furthermore, the iron core handling device also includes a cable tray, which includes a support beam arranged parallel to the crossbeam of the gantry frame and a cable protection drag chain arranged on the support beam.

[0016] Furthermore, a vertical mounting plate is provided on the upper surface of the transverse sliding plate, and the lifting servo motor is fixedly mounted on the top of the vertical mounting plate.

[0017] Unlike existing technologies, the above-mentioned automatic core stacking device includes two core grippers, each driven by an independent lateral servo motor and a lifting servo motor. Therefore, the two grippers can perform stacking operations independently, improving production efficiency. Furthermore, each core gripper includes a lifting frame, a lateral sliding plate, and multiple suction cups. Sliding sleeves are installed at the four corners of the lateral sliding plate, connecting to the vertical guide rod in the center of the lifting frame. Thus, in this technical solution, the upper frame plate is located above the lateral sliding plate, and the lower frame plate is located below it. This concentrates the mass distribution of the core gripper at the connection point with the gantry, resulting in more stable lateral sliding of the core gripper and reducing the height of the gantry and the overall size of the device.

[0018] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0019] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0020] In the accompanying drawings of the instruction manual:

[0021] Figure 1 This is a schematic diagram of the structure of the dual-servo automatic lamination device for transformer cores described in a specific embodiment;

[0022] Figure 2 This is a schematic diagram of the iron core taking and placing device according to a specific embodiment;

[0023] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0024] Figure 4 for Figure 2 A magnified view of part B in the middle section;

[0025] Figure 5 This is a schematic diagram of the extension rod described in a specific embodiment;

[0026] The reference numerals used in the above figures are explained as follows:

[0027] 2. Base; 21. Core fixing plate; 22. Core bearing plate; 3. Core gripper;

[0028] 100. Base; 101. Longitudinal sliding track; 103. Gantry frame;

[0029] 104. Support beam; 1041. Cable protection cable chain; 105. Lateral track; 106. Lateral servo motor;

[0030] 107. Transverse lead screw assembly;

[0031] 31. Lifting servo motor; 32. Vertical mounting plate; 33. Upper frame plate; 34. Vertical guide rod; 35. Horizontal sliding plate; 36. Sliding sleeve; 37. Lower frame plate; 38. Suction cup adjustment plate; 39. Extension rod; 40. Suction cup;

[0032] 311. Lead screw; 312. Lead nut; 313. Rotary bearing;

[0033] 381. Horizontal plate; 382. Transverse groove; 383. Vertical plate; 384. Longitudinal groove;

[0034] 391. Telescopic inner tube; 392. Sealing ring; 393. Spring; Detailed Implementation

[0035] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0036] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0037] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0038] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0039] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0040] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0041] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0042] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0043] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] Please see Figures 1 to 5 This embodiment provides a dual-servo automatic transformer core lamination device. This dual-servo automatic transformer core lamination device is used to stack two or more different shaped cores (i.e., single core laminations) to form a closed-shaped large core. Cores of the same shape to be stacked are placed on the same core fixing plate 21, and then core grippers 3 pick up cores from different core fixing plates 21 and stack them on a core support plate 22, thereby forming the aforementioned large core. In this embodiment, the dual-servo design means that the automatic transformer core lamination device has two core grippers 3, and the lateral movement and lifting of both core grippers 3 are driven by servo motors, thus ensuring the control accuracy of the lateral movement and lifting of the core grippers 3. Furthermore, in this embodiment, not only is the accuracy of lateral movement and lifting improved by servo motors, but the stability and accuracy of the movement are also improved by structural improvements to the core grippers 3.

[0045] like Figure 1 As shown, in this embodiment, the dual-servo transformer core automatic lamination device includes a base 2 and a core loading / unloading device. The base 2 is mounted on the base 100 and serves as the platform for core lamination operations. Multiple core fixing plates 21 and at least one core support plate 22 are placed on the base 2. The core fixing plates 21 are used to stack the cores to be laminated, with each core fixing plate 21 corresponding to a core of a specific shape. Multiple fixing rods are provided on the core fixing plates 21, abutting against the sides of the cores to define their positions and ensure neat stacking of the cores on the core fixing plates 21.

[0046] The iron core handling device includes a gantry and two iron core grippers 3. The gantry frame 103 spans above the base 2 and is equipped with a transverse slide rail. The two iron core grippers 3 are slidably mounted on the transverse slide rail for alternately gripping the iron core and stacking it on the iron core support plate 22. The gantry frame 103 includes a horizontal beam positioned above the base 2 and vertical beams at both ends of the horizontal beam. The bottom of the vertical beams is connected to longitudinal tracks 101 on both sides of the base 2 via sliders, allowing the gantry frame 103 and the iron core grippers 3 thereon to move longitudinally along the base 2. The longitudinal direction of the base 2 is... Figure 1 The direction indicated by the middle arrow Y. A transverse track 105 is provided on the crossbeam; two iron core grippers 3 are slidably connected to the transverse track 105 on the crossbeam and can move along the transverse track 105, that is, move in the direction indicated by the arrow X, where the direction indicated by the arrow Z is the height direction.

[0047] like Figure 1 and Figure 2As shown, in this embodiment, the iron core gripper 3 includes a lifting servo motor 31, a transverse servo motor 106, a transverse sliding plate 35, a lifting frame, and multiple suction cups 40. The transverse sliding plate 35 is slidably connected to the transverse slide rail and is driven to move transversely by the transverse servo motor 106. The transverse sliding plate 35 is located on the upper surface of the crossbeam, and a slider adapted to the transverse track 105 is provided at the bottom of the transverse sliding plate 35. Transverse servo motors 106 are respectively provided at both ends of the transverse track 105. The transverse servo motors 106 are connected to the transverse sliding plate 35 via a transverse lead screw assembly 107, thereby driving the transverse sliding plate 35 to move along the transverse track 105. The transverse lead screw assembly 107 is the lead screw and nut 312 assembly in the prior art; however, in this embodiment, the lead screw and nut 312 assembly is horizontally arranged and used to drive transverse movement, hence the name transverse lead screw assembly 107.

[0048] like Figure 1 As shown, the core loading and unloading device also includes a cable tray, which includes a support beam 104 arranged parallel to the crossbeam of the gantry frame 103 above the beam, and a cable protection drag chain 1041 arranged on the support beam 104. The cable of the lifting servo motor 31 is disposed inside the cable protection drag chain 1041.

[0049] like Figure 2 As shown, in this embodiment, the four corners of the transverse sliding plate 35 are respectively provided with sliding sleeves 36;

[0050] The lifting frame includes an upper frame plate 33, a lower frame plate 37, and multiple vertical guide rods 34 connecting the upper frame plate 33 and the lower frame plate 37. The vertical guide rods 34 are slidably fitted into corresponding sliding sleeves 36. The lifting frame is driven to rise and fall by the lifting servo motor 31. Multiple suction cups 40 are respectively positioned below the lower frame plate via vertically arranged extension rods 39 for adsorbing the iron core. A vertical mounting plate is provided on the upper surface of the transverse sliding plate 35, and the lifting servo motor 31 is fixedly mounted on the top of the vertical mounting plate 32. The vertical mounting plate 32 is fixed vertically and has a considerable height, extending upwards beyond the upper frame plate from the transverse sliding plate. Furthermore, the vertical guide rods 34 serve both to connect the upper frame plate 33 and the lower frame plate to form the lifting frame and to cooperate with the sliding sleeves 36 to provide lifting guidance. Multiple vertical guide rods 34 are arranged parallel to each other in the vertical direction, and their outer diameters are adapted to the inner diameter of the sliding sleeve 36, so that each vertical guide rod 34 can slide up and down within the sliding sleeve 36 without significant horizontal swaying. The lifting servo motor 31 is connected to the lifting frame through a lead screw assembly, which includes a lead screw 311 and a lead screw nut 312. The lead screw 311 is vertically arranged and its top is connected to the output end of the lifting servo motor 31. The bottom of the lead screw is mounted on the transverse sliding plate 35 through a rotary bearing 313. The lead screw nut 312 is movably mounted on the lead screw and fixedly mounted to the upper frame plate 33.

[0051] In this embodiment, the suction cup 40 is a pneumatic suction cup, and the extension rod 39 is a hollow metal tube. The middle part of the suction cup 40 is connected to a negative pressure device such as a vacuum pump through the extension rod 39 and the air tube. The negative pressure device provides suction force for the suction cup 40 to adsorb the iron core.

[0052] In this embodiment, there are four sliding sleeves 36 and four vertical guide rods 34, with the sliding sleeves 36 positioned at the four corners of the transverse sliding plate 35. In other embodiments, the number of sliding sleeves 36 may be three, five, or six, and is not limited to the four in this embodiment.

[0053] like Figure 2 As shown, the gantry frame 103 extends through the middle of the lifting frame, wherein the upper frame plate 33 is located above the crossbeam of the gantry frame 103, the lower frame plate is located below the crossbeam, and the crossbeam passes through the plurality of vertical guide rods 34.

[0054] Therefore, in this embodiment, the two iron core grippers 3 can not only independently perform stacking operations, improving production efficiency, but also, with the upper frame plate 33 located above the transverse sliding plate 35 and the lower frame plate located below the transverse sliding plate 35, the mass distribution of the entire iron core gripper 3 is more concentrated at the connection position with the gantry 103, thus making the lateral sliding of the iron core gripper 3 more stable, and reducing the height of the gantry 103 and the overall volume of the device.

[0055] like Figure 3 As shown, in this embodiment, the iron core picking and placing device further includes a suction cup adjusting plate 38; the suction cup adjusting plate 38 is fixedly disposed below the lower frame plate, and includes multiple transverse sliding grooves and multiple longitudinal sliding grooves 384; the top of the extension rod 39 is slidably connected to the transverse sliding groove or the longitudinal sliding groove 384. The suction cup adjusting plate 38 is formed by splicing the ends of multiple horizontal plates 381 and multiple vertical plates 383. Each horizontal plate 381 is provided with at least one transverse sliding groove 382, ​​and each vertical plate 383 is provided with at least one longitudinal sliding groove 384. Therefore, according to the shape of the iron core to be picked up, each extension rod 39 can be adjusted to the position corresponding to the transverse sliding groove and the longitudinal sliding groove. Therefore, a single suction cup adjusting plate 38 can be used to pick up iron cores of different shapes.

[0056] like Figure 3 and Figure 5 As shown, since each iron core gripper 3 is equipped with a large number of suction cups 40, in order to ensure that each suction cup 40 can contact the surface of the iron core during gripping, a telescopic inner tube 391 is sleeved at the bottom of the extension rod 39, and the suction cups 40 are located at the bottom of the telescopic inner tube 391. A sealing ring 392 and a spring 393 are provided between the bottom of the extension rod 39 and the telescopic inner tube 391. The top part of the telescopic inner tube 391 is inserted into the bottom of the extension rod 39, and one end of the spring 393 abuts against the extension rod 39, while the other end abuts against the telescopic inner tube 391. This allows the telescopic inner tube 391 to extend and retract with the spring 393, ensuring that each suction cup 40 can fully contact the surface of the iron core and hold it in place.

[0057] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A dual-servo automatic lamination device for transformer cores, characterized in that, include: A base is used to place a core fixing plate and a core support plate. The core fixing plate is located on both sides of the core support plate and is used to fix the core to be stacked. The iron core handling device includes a gantry frame and two iron core grippers; The gantry spans across the base and is equipped with a transverse slide rail; two iron core grippers are slidably mounted on the transverse slide rail for alternately gripping the iron core and stacking it on the iron core support plate. The iron core gripper includes a lifting servo motor, a traverse servo motor, a traverse sliding plate, a lifting frame, and multiple suction cups; the traverse sliding plate is slidably connected to the transverse slide rail and is driven to traverse by the traverse servo motor; and sliding sleeves are respectively provided at the four corners of the traverse sliding plate. The lifting frame includes an upper frame plate, a lower frame plate, and multiple vertical guide rods connecting the upper frame plate and the lower frame plate. The vertical guide rods are slidably sleeved in the corresponding sliding sleeves. The lifting frame is driven to lift by the lifting servo motor. Multiple suction cups are respectively set below the lower frame plate through vertically arranged extension rods for adsorbing the iron core.

2. The dual-servo automatic lamination device for transformer cores according to claim 1, characterized in that, The gantry frame extends through the middle of the lifting frame, wherein the upper frame plate is located above the crossbeam of the gantry frame, the lower frame plate is located below the crossbeam, and the crossbeam passes between the plurality of vertical guide rods.

3. The dual-servo automatic lamination device for transformer cores according to claim 2, characterized in that, The lifting servo motor is connected to the lifting frame via a lead screw assembly, which includes a lead screw and a lead screw nut. The lead screw is vertically arranged and its top is connected to the output end of the lifting servo motor. The bottom of the lead screw is mounted on the transverse sliding plate via a rotary bearing. The lead screw nut is movably mounted on the lead screw and fixedly mounted to the upper frame plate.

4. The dual-servo automatic lamination device for transformer cores according to claim 1, characterized in that, The iron core picking and placing device also includes a suction cup adjustment plate; the suction cup adjustment plate is fixedly disposed below the lower frame plate and includes multiple horizontal slide grooves and multiple vertical slide grooves; the top of the extension rod is slidably connected to the horizontal slide groove or the vertical slide groove.

5. The dual-servo automatic lamination device for transformer cores according to claim 4, characterized in that, The extension rod is a hollow tubular structure, and a telescopic inner tube is sleeved at the bottom of the extension rod. The suction cup is located at the bottom of the telescopic inner tube.

6. The dual-servo automatic lamination device for transformer cores according to claim 1, characterized in that, The iron core handling device also includes a cable tray, which includes a support beam arranged parallel to the crossbeam of the gantry and a cable protection drag chain arranged on the support beam.

7. The dual-servo automatic lamination device for transformer cores according to claim 1, characterized in that, A vertical mounting plate is provided on the upper surface of the transverse sliding plate, and the lifting servo motor is fixedly mounted on the top of the vertical mounting plate.

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