Three-dimensional core winding machine

Abstract

The utility model discloses a kind of three-dimensional volume core group winding machines, including workbench and the clamping mechanism being set on workbench, clamping driving device, clamping mechanism is provided with two and is arranged with interval on workbench opposite;Clamping mechanism has clamping support, rotating seat and clamping piece, clamping support is slidably arranged on workbench, rotating seat is rotatably arranged in the clamping side of clamping support, clamping piece is arranged several and is distributed around the clamping side of rotating seat's rotation center position symmetry;Clamping driving device is arranged on rotation and is connected with clamping piece, clamping driving device is electrically connected main control module, to make main control module send instruction control clamping driving device start, for automatically driving several clamping piece synchronous close to / away from the rotation center position of rotating seat. Therefore, the overall structure of clamping mechanism is more simple, automatically control clamping interval, synchronous self-adapting clamping, compatible with multiple specifications iron core, improve the operation convenience and application range of winding machine.

Description

Technical Field

[0001] This utility model relates to the technical field of iron core winding equipment, and in particular to a three-dimensional iron core winding machine. Background Technology

[0002] Transformers are the core components of the substation section in a power system. Transformers can be classified into dry-type transformers and oil-immersed transformers according to their cooling methods. Among them, dry-type transformers are transformers in which the iron core and coils are not immersed in insulating liquid. They have advantages such as low power consumption, high efficiency, moisture resistance, flame retardancy, no pollution, and convenient maintenance. They have been widely used in wind power generation, photovoltaic power generation, and energy storage industries.

[0003] Dry-type transformers typically consist of several main parts: an iron core, coils, and insulation materials. The coils are wound on the iron core. Usually, a low-voltage winding die is wound first on the core column of the iron core, and then the coil is wound on the low-voltage winding die. This is followed by the sequential winding and assembly of the high-voltage inner die and the high-voltage outer die. For example, Chinese invention patent CN201449893U, entitled "Three-Dimensional Winding Machine for Iron Core Transformers," includes a machine base, a sliding support mechanism, an iron core clamping device, and a winding transmission device. The sliding support mechanism is mounted on the panel of the machine base, the iron core clamping device is mounted on the sliding support mechanism, and the winding transmission device cooperates with the three-dimensional winding iron core on the iron core clamping device. The iron core clamping device includes a rotating shaft, a turning gear, a fixed three-pronged baffle, a movable three-pronged baffle, and a bushing. The components include nuts, baffle screws, and iron core clamps; fixed and movable three-pronged baffles are located at both ends of the rotating shaft. The fixed three-pronged baffle is fixedly connected to the rotating shaft, and the flip gear is fixed on the rotating shaft between the fixed three-pronged baffle and the shaft end; the movable three-pronged baffle is pivotally connected to the bushing, the bushing slides with the rotating shaft, and the nut engages with the rotating shaft to stop the bushing; the fixed and movable three-pronged baffles have through holes on their support plates, and there are screw holes on the radial walls of the through holes. The baffle screw passes through the screw holes and engages with the fixed nut on the iron core clamp.

[0004] However, the existing technology still has the following drawbacks:

[0005] 1. Existing iron core winding machines typically use multiple clamping components to clamp the iron core, making the structure overly complex. Moreover, the clamping structure cannot easily adjust the clamping distance between the clamping components, often only suitable for clamping a single iron core product, or the clamping distance between the clamping components can only be adjusted by manual disassembly and adjustment, which limits the scope of application and makes operation cumbersome.

[0006] 2. When the existing iron core winding machine is winding, the transmission is only through the meshing of the end gears at both ends of the casting mold and the drive gear. The drive gear will bear a large radial pressure from the casting mold and the three-dimensional coiled iron core, which increases the driving working pressure of the drive gear and is prone to damage due to excessive pressure. Moreover, the casting mold and the three-dimensional coiled iron core are only supported by force at both ends, and the stability and balance are not high enough during the rotation winding operation.

[0007] 3. Existing clamping structures typically have a 90° clamping angle design, which does not match the end bevel design of the single-frame iron core. Therefore, problems such as unstable clamping, product damage, and uneven force distribution are prone to occur during clamping.

[0008] 4. Existing clamping structures directly contact and clamp the product. Since the clamps are usually made of metal, the hard surface of the clamps can damage the product when the clamping force is large or when rotating. Utility Model Content

[0009] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a three-dimensional winding machine for iron core assembly.

[0010] The purpose of this utility model is achieved by the following technical solution: a three-dimensional winding iron core assembly winding machine, wherein the three-dimensional winding iron core assembly has a single-frame iron core with three phases tied in pairs in an equilateral triangle layout, and a casting mold sleeved on the core column of the tied two-phase single-frame iron core, characterized in that it includes a workbench and a clamping mechanism and a clamping drive device arranged on the workbench, wherein two clamping mechanisms are arranged opposite each other and spaced apart on the workbench;

[0011] The clamping mechanism has a clamping support, a rotating seat, and clamping members. The clamping support is slidably mounted on the worktable, and the rotating seat is rotatably mounted on the clamping side of the clamping support. Several clamping members are provided and symmetrically distributed around the rotation center position of the clamping side of the rotating seat.

[0012] The clamping drive device is mounted on the rotating platform and connected to the clamping member. The clamping drive device is electrically connected to the main control module so that the main control module sends a command to control the clamping drive device to start, thereby automatically driving several clamping members to move synchronously toward / away from the rotation center position of the rotating platform.

[0013] Furthermore, the clamping drive device includes a clamping driver and a clamping slide rail. The clamping slide rail is provided in three sets, with two clamping slide rails in each set extending toward the rotation center of the rotary seat. The two adjacent sets of clamping slide rails form a 120° angle. The clamping member is movably mounted on the clamping slide rail via a clamping slider. The clamping driver is located on the rotary seat and connected to the clamping member. The clamping driver receives instructions from the main control module to drive the clamping member to reciprocate along the direction of the clamping slide rail.

[0014] Furthermore, the clamping member has a first clamping plate and a second clamping plate. One end of the second clamping plate is fixedly connected to the front of the first clamping plate, and the other end extends obliquely outward. The second clamping plate has a clamping part for clamping the three-dimensional coiled iron core assembly. The clamping part and the horizontal plane form a clamping angle for adapting to clamping the three-dimensional coiled iron core assembly. The clamping angle is 25-35°.

[0015] Furthermore, the clamping portion of the second clamping plate is attached with a protective pad for elastic contact with the three-dimensional coiled iron core assembly. The protective pad has an elastic strap and is elastically secured to the second clamping plate through the elastic strap.

[0016] Furthermore, the workbench is also provided with a winding drive mechanism, which has a winding drive shaft, winding gears and a winding driver. There are two winding gears arranged along the axial direction of the winding drive shaft. The winding driver is connected to the winding drive shaft. The winding driver receives instructions from the main control module to drive the winding drive shaft and drive the two winding gears to rotate.

[0017] The casting mold has a low-pressure winding mold and end gears. The low-pressure winding mold is sleeved on the core column of the single-frame iron core and the end gears are set at both ends. The winding gears mesh with the end gears and are used to drive the end gears and drive the low-pressure winding mold to rotate and wind.

[0018] Furthermore, the casting mold also has a fixing ring, which is movably connected to the end gear through an end track ring; the workbench is provided with two support plates, which respectively support and connect the fixing rings at both ends of the single frame iron core.

[0019] Furthermore, the casting mold also has a high-pressure inner mold, which is nested outside the low-pressure winding mold and connected to end gears at both ends;

[0020] The workbench is also equipped with an auxiliary support mechanism, which has a support roller assembly and a support driver. The support driver is set on the workbench, and the support roller assembly is set on the support driver through a support seat. The support driver receives instructions from the main control module to control the support height of the support roller assembly on the three-dimensional wound iron core assembly for winding the high-pressure inner mold.

[0021] Furthermore, the workbench is provided with a support base plate and a support slide rod. The support slide rod has two rods and is horizontally mounted on the support base plate. The auxiliary support mechanism is slidably mounted on the support slide rod via a support slide block and is used to adjust the axial support position of the support roller group on the single frame iron core.

[0022] Furthermore, the worktable is provided with an X-axis sliding assembly, which includes an X-axis screw, an X-axis slide rail, and an X-axis driver. The clamping support is movably mounted on the X-axis slide rail and connected to the X-axis screw. The X-axis driver is drivenly connected to the X-axis screw and is used to drive the X-axis screw to rotate and drive the clamping support to reciprocate along the X-axis slide rail.

[0023] Furthermore, the worktable is provided with a Y-axis sliding assembly, which includes a Y-axis slide rail, a Y-axis slide block, and a Y-axis driver. The Y-axis slide rail is disposed on the worktable, the Y-axis slide block is movably mounted on the Y-axis slide rail, the clamping support is disposed on the Y-axis slide block, and the Y-axis driver is connected to and drives the Y-axis slide block to reciprocate along the Y-axis slide rail.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] (1) In this embodiment, a clamping drive device and three clamping members are set on the rotating seat of the clamping mechanism. The three clamping members are symmetrically distributed at 120° around the rotation center of the rotating seat, matching the three-phase end positions of the three-dimensional winding iron core group. Moreover, each clamping member can slide closer to or away from the rotation center of the rotating seat. When the main control module sends a command to control the clamping drive device to start, the clamping drive device can move the three clamping members toward / away from the rotation center synchronously. Compared with the existing iron core winding machine with a complex structure and a clamping structure that cannot conveniently adjust the clamping distance between each clamping member, the present application uses fewer clamping members, the overall structure of the clamping mechanism is simpler, and it can automatically control the clamping distance of each clamping member, realize synchronous adaptive clamping of the three clamping members, adjust the distance with one key, be compatible with multiple specifications of iron cores, and improve the operation convenience and applicability of the winding machine.

[0026] (2) Compared with the existing technology where the winding machine only uses the end gears at both ends of the casting mold to mesh with the drive gear during winding, the embodiment of this application sets an auxiliary support mechanism on the worktable. Under the control of the main control module, the support driver controls the support roller group to provide auxiliary support for the middle part of the single frame iron core, thereby reducing the downward pressure on the middle part of the single frame iron core and reducing the pressure on the end gears at both ends of the single frame iron core. In addition, the support height of the support roller group is adjusted in real time by the auxiliary support mechanism, so that the deflection of the single frame iron core is ≤0.1mm, ensuring the high voltage winding accuracy.

[0027] (3) By designing the clamping angle of the second clamping plate of the clamping member to 28°, the inclined surface of the silicon steel sheet at the end of the single frame iron core is precisely matched, so that the clamping force is applied perpendicularly to the contact surface, eliminating the risk of slippage and protecting the silicon steel sheet structure.

[0028] (4) By setting a protective pad on the clamping part of the second clamping plate, the protective pad absorbs vibration and solves the problem of metal clamps damaging the product. The elastic strap adaptively compensates for wear, and the product yield is improved by ≥15%. Moreover, by binding the elastic strap to the second clamping plate, it is easy to disassemble and replace. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of the clamping mechanism clamping the three-dimensional coiled iron core assembly in a preferred embodiment of the present invention;

[0030] Figure 2 This is a three-dimensional structural view of the clamping mechanism mounted on the worktable via the X-axis sliding assembly and the Y-axis sliding assembly in a preferred embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the clamping component in a preferred embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram showing the pre-assembly relationship between the winding drive mechanism, the auxiliary support mechanism, and the three-dimensional wound core assembly in a preferred embodiment of this utility model.

[0033] Figure 5 This is a three-dimensional schematic diagram of the three-dimensional wound iron core assembly in a preferred embodiment of the present invention;

[0034] Figure 6 This is a plan view of a single-frame iron core in a preferred embodiment of the present invention;

[0035] Figure 7 This is a block diagram illustrating the module control principle in a preferred embodiment of the present invention.

[0036] In the picture:

[0037] 10. Workbench;

[0038] 20. Clamping mechanism; 201. Clamping support; 202. Rotary seat; 203. Clamping component; 2031. First clamping plate; 2032. Second clamping plate; 20321. Clamping part; 2033. Reinforcing rib; 204. Rotary gear set; 205. Rotary driver;

[0039] 30. Clamping drive device; 301. Clamping driver; 302. Clamping slide rail;

[0040] 40. Protective pad; 401. Elastic strap;

[0041] 50. Winding drive mechanism; 501. Winding drive shaft; 502. Winding gear; 503. Winding driver;

[0042] 60. Support plate; 601. Arc-shaped bracket; 61. Support base plate; 62. Support slide bar;

[0043] 70. Auxiliary support mechanism; 701. Support roller assembly; 702. Support drive; 703. Support base; 704. Support slide;

[0044] 80. X-axis sliding assembly; 801. X-axis screw; 802. X-axis slide rail; 803. X-axis driver;

[0045] 90. Y-axis sliding assembly; 901. Y-axis slide rail; 902. Y-axis slide block; 903. Y-axis driver;

[0046] 100. Main control module;

[0047] 110. Three-dimensional coiled iron core assembly; 1101. Single-frame iron core;

[0048] 120. Casting mold; 1201. Low-pressure winding mold; 1202. End gear; 1203. Fixing ring; 1204. End track ring; 1205. High-pressure inner mold; 1206. High-pressure outer mold. Detailed Implementation

[0049] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0050] like Figure 1-7 As shown, a three-dimensional wound core assembly 110 winding machine is described. The three-dimensional wound core assembly 110 is an important component of dry-type transformers and is widely used in wind power generation, photovoltaic power generation, and energy storage industries. The three-dimensional wound core assembly 110 has three-phase single-frame cores 1101, with the three phases of the three-phase single-frame cores 1101 bundled in pairs in a 120° equilateral triangle layout. A casting mold 120 is fitted onto the core column of the bundled two-phase single-frame cores 1101. Figure 5-6 As shown.

[0051] like Figure 1-2 As shown, the three-dimensional coiled iron core assembly 110 winding machine includes a worktable 10 and clamping mechanisms 20 and clamping drive device 30 disposed on the worktable 10. Two clamping mechanisms 20 are provided, arranged opposite each other and spaced apart on the worktable 10. During use, the two clamping mechanisms 20 can move closer together or further apart on the worktable 10, thus accommodating three-dimensional coiled iron core assemblies 110 of different specifications and sizes. The clamping drive device 30 is connected to the clamping mechanisms 20, providing the power to drive the clamping mechanisms 20 to clamp or release the three-dimensional coiled iron core assembly 110.

[0052] More specifically, the worktable 10 is provided with a Y-axis sliding assembly 90, which has a Y-axis slide rail 901, a Y-axis slide block 902 and a Y-axis driver 903 (motor). At least two Y-axis slide rails 901 are provided on the worktable 10. The Y-axis slide block 902 is movably mounted on the two Y-axis slide rails 901 by a slider. The Y-axis driver 903 is also mounted on the worktable 10 and is connected to the Y-axis slide block 902. The Y-axis driver 903 is electrically connected to the main control module 100. The main control module 100 sends a command to control the Y-axis driver 903 to start, which is used to push the slide block to move along the Y-axis slide rail 901.

[0053] An X-axis sliding assembly 80 is mounted on the Y-axis slide block 902. The X-axis sliding assembly 80 includes an X-axis screw 801, an X-axis slide rail 802, and an X-axis driver 803 (motor). There are two X-axis slide rails 802 and one X-axis screw 801. The two X-axis slide rails 802 are mounted side by side on the Y-axis slide block 902, and the X-axis screw 801 is mounted between the two X-axis slide rails 802 and is arranged parallel to each other. The X-axis driver 803 is also mounted on the Y-axis slide block 902, and the X-axis driver 803 is connected to the X-axis screw 801 for transmission.

[0054] The clamping mechanism 20 has a clamping support 201, a rotating seat 202, and a clamping element 203. The clamping support 201 has a base and is mounted on two X-axis slide rails 802. The base is also connected to the X-axis screw 801 through a nut seat. The X-axis driver 803 is electrically connected to the main control module 100. The main control module 100 sends a command to control the X-axis driver 803 to start. Therefore, when the X-axis driver 803 starts and controls the X-axis screw 801 to rotate, it can drive the clamping support 201 to slide back and forth horizontally along the X-axis slide rails 802, thereby controlling the relative distance between the two clamping mechanisms 20 and adapting to three-dimensional coiled iron core assemblies 110 of different lengths.

[0055] Since the clamping support 201 is mounted on the Y-axis slide block 902 via the X-axis slide rail 802, when the Y-axis slide block 902 is driven to move along the Y-axis slide rail 901 by the Y-axis driver 903, the clamping mechanism 20 can be driven to slide back and forth horizontally along the Y-axis slide rail 901 simultaneously. This is used to adjust the position of the three-dimensional coiled iron core assembly 110 in the Y-axis direction during the winding process, such as facilitating the mounting, dismounting, and replacement of the three-dimensional coiled iron core assembly 110.

[0056] The upper part of the clamping support 201 is a vertical support plate set on its base. A rotary driver 205 and a rotary gear set 204 are mounted on the vertical support plate. The rotary driver 205 and the rotary gear set 204 are connected in a transmission connection.

[0057] The rotating seat 202 is installed on the clamping side of the clamping support 201 (on the opposite side of the two clamping mechanisms 20), and the rotating seat 202 is connected to the rotating gear set 204. The rotating drive 205 controls the rotation of the rotating gear set 204, thereby controlling the rotating seat 202 to rotate on the clamping support 201. The rotating design of the rotating seat 202 allows the three-dimensional wound core assembly 110 to adjust the position of each phase single-frame core 1101 during winding, facilitating the winding operation.

[0058] The clamping drive device 30 has a clamping driver 301 and a clamping slide rail 302. The clamping driver 301 can be a stepper motor. The clamping driver 301 is mounted on the clamping support 201. The clamping slide rail 302 has three sets. The three sets of clamping slide rails 302 are fixed to the clamping side of the rotating seat 202 at a 120° angle (that is, the two adjacent sets of clamping slide rails 302 form a 120° angle). Each set contains two radial slide rails, which extend toward the rotation center of the rotating seat 202.

[0059] In this embodiment, three clamping members 203 are provided, each slidably mounted on a clamping slide rail 302, and thus symmetrically distributed at 120° on the rotary seat 202. The clamping driver 301 is connected to the clamping members 203 via a lead screw. The lead screw drive ensures synchronous movement of the three clamping members 203, avoiding uneven loading and ensuring balanced force distribution across the three phases. The clamping driver 301 is electrically connected to the main control module 100. The main control module 100 sends commands to start the clamping driver 301, controlling the synchronous movement of the three clamping members 203 towards / away from the rotation center. The main control module 100 writes a PLC program, which allows for adjustment of the clamping stroke to adapt to different sized iron cores, and unified control of the clamping stroke of each clamping member 203 through the main control module 100, achieving adaptive clamping.

[0060] For example, when the three clamping members 203 simultaneously approach the rotation center position of the rotating seat 202, the three clamping members 203 respectively clamp the end of a single-frame iron core 1101, thereby fixing the two ends of the three-dimensional coiled iron core assembly 110; when the three clamping members 203 simultaneously move away from the rotation center position of the rotating seat 202, the end of each single-frame iron core 1101 is released.

[0061] In this way, a clamping drive device 30 and three clamping members 203 are set on the rotating seat 202 of the clamping mechanism 20. The three clamping members 203 are symmetrically distributed at 120° around the rotation center of the rotating seat 202, matching the three-phase end positions of the three-dimensional wound iron core assembly 110. Moreover, each clamping member 203 can slide closer to or further away from the rotation center of the rotating seat 202. When the main control module 100 sends a command to control the clamping drive device 30 to start, the clamping drive device 30 can synchronously move the three clamping members 203 toward / away from the rotation center. Compared with the complex structure of the iron core winding machine of the prior art and the inability to conveniently adjust the clamping distance between each clamping member, the present application uses fewer clamping members 203, the overall structure of the clamping mechanism 20 is simpler, and it can automatically control the clamping distance of each clamping member 203, realize synchronous adaptive clamping of the three clamping members 203, adjust the distance with one button, be compatible with multiple specifications of iron cores, and improve the operation convenience and applicability of the winding machine.

[0062] like Figure 3 As shown, the clamping member 203 provided in this embodiment of the application has a first clamping plate 2031 and a second clamping plate 2032. The back side of the first clamping plate 2031 is assembled with the clamping slide rail 302 via a slider. One end of the second clamping plate 2032 is welded and fixedly connected to the front side of the first clamping plate 2031, and the other end of the second clamping plate 2032 extends obliquely outward. A reinforcing rib 2033 is also added between the first clamping plate 2031 and the second clamping plate 2032. The reinforcing rib 2033 is welded between the back sides of the first clamping plate 2031 and the second clamping plate 2032 to enhance the structural strength of the clamping member 203.

[0063] The second clamping plate 2032 has a clamping part 20321 for clamping the three-dimensional coiled iron core assembly 110. The clamping part 20321 forms a clamping angle α with the horizontal plane. The clamping angle α is 25-35°. In practical applications, 28° can be selected. The 28° clamping angle accurately matches the inclined angle β of the silicon steel sheet at the end of the single frame iron core 1101, so that the clamping force acts perpendicularly on the contact surface, eliminating the risk of slippage and protecting the silicon steel sheet structure.

[0064] In addition, the clamping angle can be adjusted between 25° and 35° (by replacing the fixed weld with an adjustable hinge) to accommodate different core models.

[0065] Preferably, a protective pad 40 is attached to the clamping portion 20321 of the second clamping plate 2032. During clamping operation, the protective pad 40 directly and elastically contacts the three-dimensional coiled iron core assembly 110. The protective pad 40 can be made of silicone, which cushions the metal and prevents damage to the product from hard metal contact. The protective pad 40 has an elastic strap 401 (Nylon Velcro), which elastically binds it to the second clamping plate 2032. The elastic strap 401 provides pre-tension, ensuring that the protective pad 40 fits tightly against the clamping portion 20321. Furthermore, the protective pad 40 can be designed as an air cushion structure, allowing for adjustment of its hardness via air pressure.

[0066] Therefore, by setting a protective pad 40 on the clamping part 20321 of the second clamping plate 2032, the protective pad 40 absorbs vibration and solves the problem of metal clamps damaging the product. The elastic strap 401 adaptively compensates for wear, improving the product yield by ≥15%. Moreover, by binding the elastic strap 401 to the second clamping plate 2032, it is also easy to disassemble and replace.

[0067] like Figure 1 , 4 As shown, the workbench 10 in this embodiment of the application is further provided with a winding drive mechanism 50. This winding drive mechanism 50 includes a winding drive shaft 501, winding gears 502, and a winding driver 503. The winding drive shaft 501 is mounted on the workbench 10 via a bracket. The winding driver 503 can be a servo motor and is connected to the winding drive shaft 501 via a coupling. Two winding gears 502 are provided and arranged axially along the winding drive shaft 501. In practical applications, the spacing between the two winding gears 502 can be adjusted according to the product dimensions. The winding driver 503 is electrically connected to the main control module 100. The main control module 100 sends commands to control the winding driver 503 to start, driving the winding drive shaft 501 and rotating the two winding gears 502.

[0068] The casting mold 120 of this embodiment has a low-pressure winding mold 1201 and end gears 1202. The low-pressure winding mold 1201 is sleeved on the core column of the single-frame iron core 1101. End gears 1202 are provided at both ends of the low-pressure winding mold 1201. The winding gear 502 of the winding drive mechanism 50 meshes with the end gears 1202 to drive the end gears 1202 and drive the low-pressure winding mold 1201 to rotate and wind. By synchronously driving the end gears 1202 at both ends of the casting mold 120 with the double winding gears 502, the radial pressure is distributed, single-point overload is avoided, and the gear life is extended by 3 times.

[0069] Furthermore, the casting mold 120 also has a retaining ring 1203, which is connected to the end gear 1202 via an end track ring 1204 (including ball bearings) to achieve relative rotation.

[0070] The workbench 10 is equipped with a support base plate 61, support slide rods 62, and two support uprights 60. Two support slide rods 62 are horizontally mounted on the support base plate 61. The two support uprights 60 are installed one-to-one with the two support base plates 61. The support uprights 60 have arc-shaped grooves 601 for locking with the fixing rings 1203 at both ends of the single-frame iron core 1101, thus supporting the fixing rings 1203. When adjusting the installation height of the casting mold 120, the fixing rings 1203 can be loosened from the uprights for adjustment. In this way, the support uprights 60 bear the weight of the casting mold 120, while the end track rings 1204 isolate the rotation and load-bearing functions, reducing gear wear and lowering the amplitude of winding vibration.

[0071] Furthermore, the casting mold 120 also has a high-pressure inner mold 1205 and a high-pressure outer mold 1206. The high-pressure inner mold 1205 is wound around the coil of the low-pressure winding mold 1201, and both ends of the high-pressure inner mold 1205 are connected to the end gear 1202. The high-pressure outer mold 1206 covers the wound high-pressure inner mold 1205 and is also connected to the end gear 1202 at both ends.

[0072] The workbench 10 in this embodiment is further provided with an auxiliary support mechanism 70, which is also arranged on one side of the winding drive mechanism 50 for auxiliary support of the three-dimensional wound core assembly 110.

[0073] Specifically, the auxiliary support mechanism 70 has a support roller assembly 701 and a support driver 702. The support driver 702 is mounted on the worktable 10 and can be either a pneumatic cylinder or a hydraulic cylinder. The support roller assembly 701 is mounted on the support driver 702 via a support seat 703. The support driver 702 is electrically connected to the main control module 100. The main control module 100 sends a command to control the winding driver 503 to start, which pushes the support seat 703 upward to adjust the support height of the support roller assembly 701 on the single-frame iron core 1101 and lifts the middle part of the single-frame iron core 1101.

[0074] Therefore, compared with the existing technology where the winding machine only uses the end gears 1202 at both ends of the casting mold 120 to mesh with the drive gear during winding, this embodiment of the application sets an auxiliary support mechanism 70 on the workbench 10. Under the control of the main control module 100, the support driver 702 controls the support roller group 701 to provide auxiliary support for the middle part of the single frame iron core 1101, reducing the downward pressure on the middle part of the single frame iron core 1101 and reducing the pressure on the end gears 1202 at both ends of the single frame iron core 1101; and the support height of the support roller group 701 is adjusted in real time by the auxiliary support mechanism 70, so that the deflection of the single frame iron core 1101 is ≤0.1mm, ensuring the high voltage winding accuracy.

[0075] Furthermore, a support slide 704 is provided at the bottom of the auxiliary support mechanism 70. This support slide 704 is slidably assembled with two support slide rods 62 on the worktable 10. This allows for adjustment of the axial position of the auxiliary support mechanism 70 on the support slide rods 62 via a handwheel or other means, thereby adjusting the axial support position of the support roller assembly 701 on the single-frame iron core 1101. By mounting the auxiliary support mechanism 70 on the support slide rods 62 for guidance and positioning, the support roller assembly 701 is accurately positioned along the axial direction of the single-frame iron core 1101, thus distributing the winding load across different sections.

[0076] The winding process of the three-dimensional wound core assembly 110 provided in this embodiment is as follows:

[0077] 1. Core assembly positioning: The remote control terminal triggers the main control module 100 to send a command to control the X-axis sliding assembly 80 to start, and adjusts the distance between the two clamping mechanisms 20 to the length of the core assembly; the Y-axis sliding assembly 90 finely adjusts the horizontal position of the clamping support 201 so that the center of the rotating seat 202 is aligned with the end of the single-frame core 1101.

[0078] 2. Adaptive clamping: The main control module 100 sends commands to control the clamping driver 301 to move synchronously, driving the three sets of clamping parts 203 to move inward synchronously along the clamping slide rails 302 symmetrically distributed at 120°; the 28° inclined surface of the second clamping plate 2032 fits against the silicon steel sheet at the end of the single frame iron core 1101, and the protective pad 40 is compressed and deformed to generate elastic clamping force; moreover, the supporting upright plate 60 supports the fixing ring 1203 to bear the weight of the casting mold 120;

[0079] 3. Winding drive and support: The main control module 100 sends commands to control the winding driver 503 to drive the winding transmission shaft 501, which in turn drives the winding gears 502 at both ends to mesh with the end gears 1202 at both ends of the single frame iron core 1101, causing the casting mold 120 to rotate for winding. Moreover, the support driver 702 of the auxiliary support mechanism 70 pushes the support roller group 701 to rise. The support roller group 701 supports the middle of the single frame iron core 1101 and adjusts the height in real time to compensate for winding deformation.

[0080] 4. High-voltage winding mode switching: After completing the low-voltage winding, the high-voltage inner mold 1205 and the high-voltage outer mold 1206 are wound in sequence.

[0081] 5. After the core assembly is unloaded and the winding work is completed, the main control module 100 sends a command to control the clamping driver 301 to start, drive the clamping component 203 to move outward and release the two ends of the single-frame core 1101; and control the X-axis sliding component 80 to open the gap of the clamping mechanism 20, and lift and remove the three-dimensional wound core assembly 110.

[0082] Therefore, by optimizing the clamping design of the clamping mechanism 20, the three clamping parts 203 are automatically controlled to clamp or release synchronously at 120°, and the clamping part 20321 of the clamping part 203 is designed with a 28° clamping angle to adapt to the end slope of the single frame iron core 1101, thus solving the problems of clamping damage and uneven force. The double winding gear 502 of the winding drive mechanism 50 and the auxiliary support of the support roller group in the middle of the auxiliary support mechanism 70 eliminate single-point overload and vibration. In addition, the dual-axis adjustment of the XY axis sliding assembly 90 is combined to quickly adapt to the new specification three-dimensional wound iron core group 110, thereby improving the efficiency of iron core winding.

[0083] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A three-dimensional coiled iron core assembly winding machine, wherein the three-dimensional coiled iron core assembly comprises three-phase single-frame iron cores bound in pairs in an equilateral triangle layout, and a casting mold sleeved on the core column of the bound two-phase single-frame iron cores, characterized in that, It includes a worktable and a clamping mechanism and a clamping drive device disposed on the worktable. Two clamping mechanisms are provided and arranged opposite each other on the worktable with a distance between them. The clamping mechanism has a clamping support, a rotating seat, and clamping members. The clamping support is slidably mounted on the worktable, and the rotating seat is rotatably mounted on the clamping side of the clamping support. Several clamping members are provided and symmetrically distributed around the rotation center position of the clamping side of the rotating seat. The clamping drive device is mounted on the rotating platform and connected to the clamping member. The clamping drive device is electrically connected to the main control module so that the main control module can send commands to control the clamping drive device to start, thereby automatically driving several clamping members to synchronously approach / move from the rotation center position of the rotating platform.

2. The three-dimensional coiled iron core winding machine as described in claim 1, characterized in that, The clamping drive device includes a clamping driver and clamping slide rails. The clamping slide rails are provided in three sets, with two slide rails in each set extending toward the rotation center of the rotating seat. The two adjacent sets of clamping slide rails form a 120° angle. The clamping member is movably mounted on the clamping slide rails via a clamping slider. The clamping driver is located on the rotating seat and connected to the clamping member. The clamping driver receives instructions from the main control module to drive the clamping member to reciprocate along the direction of the clamping slide rails.

3. The three-dimensional coiled iron core winding machine as described in claim 1, characterized in that, The clamping member has a first clamping plate and a second clamping plate. One end of the second clamping plate is fixedly connected to the front of the first clamping plate, and the other end extends obliquely outward. The second clamping plate has a clamping part for clamping the three-dimensional coiled iron core assembly. The clamping part and the horizontal plane form a clamping angle for adapting to clamping the three-dimensional coiled iron core assembly. The clamping angle is 25-35°.

4. The three-dimensional winding machine for iron core assembly as described in claim 3, characterized in that, The clamping part of the second clamping plate is attached with a protective pad for elastic contact with the three-dimensional coiled iron core assembly. The protective pad has an elastic strap and is elastically bound to the second clamping plate through the elastic strap.

5. The three-dimensional coiled iron core winding machine as described in claim 1, characterized in that, The workbench is also equipped with a winding drive mechanism, which has a winding drive shaft, winding gears and a winding driver. There are two winding gears arranged along the axial direction of the winding drive shaft. The winding driver is connected to the winding drive shaft. The winding driver receives instructions from the main control module to drive the winding drive shaft and rotate the two winding gears. The casting mold has a low-pressure winding mold and end gears. The low-pressure winding mold is sleeved on the core column of the single-frame iron core and the end gears are set at both ends. The winding gears mesh with the end gears and are used to drive the end gears and drive the low-pressure winding mold to rotate and wind.

6. The three-dimensional winding machine for iron core assembly as described in claim 5, characterized in that, The casting mold also has a fixing ring, which is movably connected to the end gear through an end track ring; the workbench is provided with two support plates, which respectively support and connect the fixing rings at both ends of the single frame iron core.

7. The three-dimensional coiled iron core winding machine as described in claim 5, characterized in that, The casting mold also has a high-pressure inner mold, which is nested outside the low-pressure winding mold and connected to end gears at both ends. The workbench is also equipped with an auxiliary support mechanism, which has a support roller assembly and a support driver. The support driver is set on the workbench, and the support roller assembly is set on the support driver through a support seat. The support driver receives instructions from the main control module and controls the support height of the support roller assembly on the three-dimensional wound iron core assembly for winding the high-pressure inner mold.

8. The three-dimensional coiled iron core winding machine as described in claim 7, characterized in that, The workbench is provided with a support base plate and a support slide rod. There are two support slide rods, which are horizontally installed on the support base plate. The auxiliary support mechanism is slidably installed on the support slide rods through a support slide block, and is used to adjust the axial support position of the support roller group on the single frame iron core.

9. The three-dimensional winding machine for core coils as described in any one of claims 1-8, characterized in that, The worktable is provided with an X-axis sliding assembly, which includes an X-axis screw, an X-axis slide rail, and an X-axis driver. The clamping support is movably mounted on the X-axis slide rail and connected to the X-axis screw. The X-axis driver is driven by the X-axis screw and is used to drive the X-axis screw to rotate and drive the clamping support to slide back and forth along the X-axis slide rail.

10. The three-dimensional winding machine for iron core assembly as described in any one of claims 1-8, characterized in that, The worktable is provided with a Y-axis sliding assembly, which includes a Y-axis slide rail, a Y-axis slide block, and a Y-axis driver. The Y-axis slide rail is disposed on the worktable, the Y-axis slide block is movably mounted on the Y-axis slide rail, the clamping support is disposed on the Y-axis slide block, and the Y-axis driver is connected to and drives the Y-axis slide block to slide back and forth along the Y-axis slide rail.

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