Method for forming a three-phase solid core

Abstract

The present application relates to a kind of three-phase solid core forming method, comprising the following steps: using strip winding to form at least three circular first single-frame core;Three first single-frame core is placed on three assembling table of assembling equipment respectively, and in each assembling table, first single-frame core is supported as the second single-frame core of square ring;Three assembling table relative motion, and three second single-frame core is spliced into the first three-phase solid core base body with three core columns;First three-phase solid core base body is annealed and is treated with glue brushing, and three-phase solid core is obtained.In the operation of round supporting square on assembling table, second single-frame core is obtained, and by the relative motion of three assembling table, to drive three second single-frame core motion to three mutually spliced, the effect of round supporting square and splicing process are all completed on assembling table, without feeding and transfer between two processes, simplify the production procedure before annealing, improve production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformers, in particular to a three-phase three-dimensional core forming method. BACKGROUND

[0002] With the development of transformer technology, the distribution transformers used on the power grid mainly include silicon steel distribution transformers and amorphous distribution transformers. The no-load loss of the amorphous distribution transformer is 80% lower than that of the silicon steel distribution transformer, and has gradually become the mainstream product in the market. Amorphous alloy is obtained by ultra-rapid solidification. When the alloy solidifies, the atoms cannot be arranged in order to crystallize, and the solid alloy is a long-range disordered structure. The molecules (or atoms, ions) of the material are not spatially regular and periodic, and there is no grain and grain boundary in the crystal state alloy. This amorphous alloy has many unique properties. Due to its excellent performance and simple process, it has gradually become the focus of research and development in the field of material science.

[0003] In the forming of the three-phase three-dimensional core, in order to eliminate the stress inside the three-phase three-dimensional core, annealing treatment needs to be performed on the three-phase three-dimensional core. However, the process before annealing is complicated, and the forming efficiency is low. SUMMARY

[0004] Therefore, it is necessary to provide a three-phase three-dimensional core forming method to solve the problem of complicated process before annealing of the three-phase three-dimensional core.

[0005] A three-phase three-dimensional core forming method, comprising the following steps:

[0006] forming at least three first single-frame cores in the form of circular rings by winding the strip;

[0007] placing the three first single-frame cores on three assembling tables of an assembling device respectively, and supporting the first single-frame core on each assembling table to form a second single-frame core in the form of a square ring;

[0008] moving the three assembling tables relative to each other to splice the three second single-frame cores into a first three-phase three-dimensional core base body having three core columns;

[0009] performing annealing and glue brushing treatment on the first three-phase three-dimensional core base body to obtain a three-phase three-dimensional core.

[0010] In the three-phase solid core forming method, after the first single-frame core is wound, the three first single-frame cores are placed on three assembling tables respectively, then a round supporting square operation is performed on the assembling tables to obtain second single-frame cores, and the three assembling tables are relatively moved to drive the three second single-frame cores to be combined with each other, so that the round supporting square operation and the combining process are completed on the assembling tables, the two processes are combined on the assembling tables, the production process before annealing is simplified, and the production efficiency is improved.

[0011] In one of the embodiments, each of the first single-frame cores has a first outer side and a second outer side opposite to each other along an axial direction of the first single-frame core, the first outer side is an inclined surface inclined towards the second outer side in a direction from inside to outside, and the second outer side is an arc-shaped surface.

[0012] The step of placing the three first single-frame cores on the three assembling tables of the assembling device specifically includes the following steps:

[0013] The second outer side of each of the first single-frame cores is supported downward by the assembling table.

[0014] In one of the embodiments, the step of relatively moving the three assembling tables to combine the three second single-frame cores into a first three-phase solid core base with three core columns specifically includes the following steps:

[0015] Each of the assembling tables is horizontally flipped to be vertical to flip the second single-frame core thereon, so that the first outer sides of the three second single-frame cores on the three assembling tables face each other.

[0016] The three assembling tables are controlled to move towards each other to make the first outer sides of the three second single-frame cores abut each other to form the first three-phase solid core base.

[0017] In one of the embodiments, the step of supporting the first single-frame core on each of the assembling tables into a second single-frame core with a square ring shape specifically includes the following steps:

[0018] The first movable block and the second movable block on each of the assembling tables are simultaneously sleeved in the central hole of the first single-frame core.

[0019] The first movable block and the second movable block are moved away from each other to support the first single-frame core into the second single-frame core.

[0020] In one of the embodiments, after the step of simultaneously sleeving the first movable block and the second movable block on each of the assembling tables in the central hole of the first single-frame core, the following steps are further included:

[0021] a second movable block in the central hole;

[0022] The first movable block and the second movable block are separated from each other in a first direction, and the auxiliary mold blocks the gap between the first movable block and the second movable block when they are separated from each other.

[0023] In one embodiment, the step of the first movable block and the second movable block being separated from each other in a first direction, and the auxiliary mold blocks the gap between the first movable block and the second movable block when they are separated from each other, further comprises the following steps:

[0024] The auxiliary mold is removed, and a square inner support around the first movable block and the second movable block is fitted in the central hole;

[0025] The first movable block and the second movable block are separated from each other in a second direction, expanding the square inner support and forming the second single-frame iron core.

[0026] In one embodiment, the step of the three assembling platforms moving relative to each other to combine the three second single-frame iron cores into a first three-phase three-dimensional iron core base with three iron core columns, specifically comprises:

[0027] The three assembling platforms move relative to each other to combine the three second single-frame iron cores into a first three-phase three-dimensional iron core base with three iron core columns, and during the movement, the second single-frame iron core on each assembling platform is fixedly fitted with the first movable block and the second movable block in the central hole of the assembling platform.

[0028] In one embodiment, after the first three-phase three-dimensional iron core base is annealed and coated with glue, the three-phase three-dimensional iron core is obtained by the following steps:

[0029] The first three-phase three-dimensional iron core base is carried on a tray, and the product information of the first three-phase three-dimensional iron core base is integrated into a label corresponding to the tray;

[0030] The tray and the first three-phase three-dimensional iron core base on the tray are transported into an annealing furnace, and after annealing is completed, the tray and the three-phase three-dimensional iron core on the tray are transported out of the annealing furnace.

[0031] In one embodiment, after the first three-phase three-dimensional iron core base is annealed and coated with glue, the three-phase three-dimensional iron core is obtained by the following steps:

[0032] After annealing the first three-dimensional iron core base, the first three-dimensional iron core base is transported into a cooling chamber, and dry cold air is circulated in the cooling chamber.

[0033] In one embodiment, the step of obtaining a three-dimensional iron core after annealing and glue brushing the first three-dimensional iron core base includes:

[0034] The first three-dimensional iron core base after annealing is disassembled, glue is brushed on the butt joint surface of each second single-frame iron core in the first three-dimensional iron core base, and then three second single-frame iron cores are reassembled to form a second three-dimensional iron core base.

[0035] The outer surface of the second three-dimensional iron core base is brushed by a robot.

[0036] In one embodiment, the step of spraying and brushing glue on the outer surface of the second three-dimensional iron core base by a robot specifically includes:

[0037] A plurality of second three-dimensional iron core bases are placed side by side, each of which includes a bottom and a top.

[0038] The robot first brushes glue on one of the bottom and the top of a part of the second three-dimensional iron cores in the plurality of second three-dimensional iron core bases, and then brushes glue on the other of the bottom and the top of another part of the second three-dimensional iron cores in the plurality of second three-dimensional iron core bases during the waiting process for the previous glue layer to dry.

[0039] When brushing glue on the bottom of the second three-dimensional iron core, the second three-dimensional iron core is hung, and when brushing glue on the top of the second three-dimensional iron core, the second three-dimensional iron core is placed horizontally.

[0040] In one embodiment, the step of disassembling the first three-dimensional iron core base after annealing, brushing glue on the butt joint surface of each second single-frame iron core in the first three-dimensional iron core base, and then reassembling three second single-frame iron cores to form a second three-dimensional iron core base further includes the following steps:

[0041] Each iron core column of the second three-dimensional iron core is automatically knocked by a stress relief device to eliminate the stress inside the first three-dimensional iron core base.

[0042] In one embodiment, the step of obtaining a three-dimensional iron core after annealing and glue brushing the first three-dimensional iron core base includes:

[0043] In the glue brushing process, the space for the glue brushing operation is filtered of harmful gases by the purifying device. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 A flowchart of a three-phase solid core forming method in an embodiment of the present application;

[0045] Figure 2 A structural diagram of an assembling table used in the three-phase solid core forming method in an embodiment of the present application;

[0046] Figure 3 A structural diagram of a supporting member used in the three-phase solid core forming method in an embodiment of the present application;

[0047] Figure 4 A structural diagram of a square supporting mold used in the three-phase solid core forming method in an embodiment of the present application;

[0048] Figure 5 A flowchart of forming a first three-phase solid core base in the three-phase solid core forming method in an embodiment of the present application;

[0049] Figure 6 A structural diagram of a stress relieving device used in the three-phase solid core forming method in an embodiment of the present application;

[0050] Figure 7 A diagram of a splitting process in the three-phase solid core forming method in an embodiment of the present application;

[0051] Figure 8 A structural diagram of a second three-phase solid core base in the three-phase solid core forming method in an embodiment of the present application.

[0052] BRIEF DESCRIPTION OF DRAWINGS

[0053] 10, first single-frame core; 20, second single-frame core; 30, first three-phase solid core base; 32, first outer side; 34, second outer side; 50, second three-phase solid core base; 201, assembling table; 202, supporting member; 310, first movable block; 330, second movable block; 400, stress relieving device; 401, swinging mechanism; 402, swinging arm; 403, knocking member. DETAILED DESCRIPTION

[0054] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described below in detail with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different manners without the specific details, and it is to be understood that the present application is not limited to the specific embodiments described below and that the specific embodiments are given for the purposes of exemplification only.

[0055] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0056] In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0059] It is to be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right", and similar terms as used herein are for the purpose of description only and are not intended to be limiting.

[0060] As described in the background, the prior art process before annealing of the three-phase three-dimensional core is complicated, and the inventors have found that the root cause of this problem is that after the single-frame core is wound and formed, it needs to be shaped into a round square in a shaping device, and then the three single-frame cores after shaping are transported to a splicing device for splicing, so that the process is complicated due to the need for loading and unloading and transportation between the shaping and splicing processes.

[0061] To solve the above technical problems, in an embodiment of the present application, a three-phase three-dimensional core forming method is provided.

[0062] Referring to Figures 1-2 The three-phase three-dimensional core forming method in an embodiment of the present application includes the following steps:

[0063] Step S100, at least three first single-frame cores 10 are formed by winding a strip, and the strip is wound onto a circular inner membrane to obtain the circular first single-frame core 10. Specifically, the strip is an amorphous alloy strip. Optionally, the strip is wound on a circular inner support during winding to form the first single-frame core 10.

[0064] Step S300, the three first single-frame cores 10 are respectively placed on three assembling tables 201 of an assembling device, and the first single-frame core 10 is shaped into a square ring-shaped second single-frame core 20 on each assembling table 201. That is, one first single-frame core 10 is placed on each assembling table 201, and then the round square operation is performed on the assembling table 201 to shape the first single-frame core 10 into the square ring-shaped second single-frame core 20.

[0065] Step S500, the three assembling tables 201 move relatively to splice the three second single-frame cores 20 into a first three-phase three-dimensional core base 30 with three core columns. After the round square operation is completed on the assembling table 201, the three assembling tables 201 move relatively to each other, and the movement of the three second single-frame cores is directly driven by the movement of the assembling table 201 to splice the three second single-frame cores.

[0066] Step S700, annealing and glue brushing are performed on the first three-phase three-dimensional core base 30 to obtain a three-phase three-dimensional core.

[0067] In the three-phase solid core forming method, after the first single-frame core 10 is wound, the three first single-frame cores 10 are placed on the three assembling tables 201 respectively, then the second single-frame core 20 is obtained by performing the round supporting square operation on the assembling table 201, and the three second single-frame cores are moved to be combined with each other by relative movement of the three assembling tables 201. Thus, the round supporting square operation and the combining process are completed on the assembling table 201, and the two processes are combined on the assembling table 201, which simplifies the production process before annealing and improves the production efficiency.

[0068] Referring to Figure 3 Further, each first single-frame core 10 has a first outer side 32 and a second outer side 34 opposite to each other in the axial direction of the first single-frame core 10. The first outer side 32 is an inclined surface inclined toward the second outer side 34 in the direction from inside to outside, and the second outer side 34 is an arc surface.

[0069] In step S300, the three first single-frame cores 10 are placed on the three assembling tables 201 of the assembling device respectively. Specifically, the second outer side 34 of each first single-frame core 10 is supported downward by the assembling table 201, and the first outer side 32 opposite to the second outer side 34 is upward, at this time, the first outer side 32 is inclined downward in the direction from inside to outside, so that the inclined first outer side 32 of each first single-frame core 10 is exposed. After the subsequent round supporting square operation is completed, the three second single-frame cores 20 are moved to face and abut against each other by relative movement of the three assembling tables 201, so that the first three-phase solid core is combined.

[0070] That is, when the first single-frame core 10 is placed on the assembling table 201, in order to facilitate subsequent combination, the inclined first outer side 32 of the first single-frame core 10 needs to be placed upward, so as to facilitate the first outer sides 32 of the three second single-frame cores 20 to face and abut against each other during subsequent assembling. Specifically, the assembling table 201 is provided with a support 202 having an arc-shaped groove to support the second outer side 34 of the first single-frame core 10.

[0071] Referring to Figure 4 In some embodiments, the step of supporting the first single-frame core 10 to be a square ring-shaped second single-frame core 20 on each assembling table 201 in step S300 is specifically as follows:

[0072] Step S320, the first movable block 310 and the second movable block 330 on each assembling table 201 are simultaneously sleeved in the center hole of the first single-frame iron core 10. That is to say, a square supporting mold is arranged on each assembling table 201, the first movable block 310 and the second movable block 330 can move towards each other and away from each other, the first movable block 310 and the second movable block 330 are simultaneously sleeved in the center hole of the first single-frame iron core 10, and the subsequent square supporting operation is prepared.

[0073] Step S340, the first movable block 310 and the second movable block 330 move away from each other, and the first single-frame iron core 10 is supported as the second single-frame iron core 20. Thus, through the movement of the first movable block 310 and the second movable block 330, the first single-frame iron core 10 is expanded outward along the movement direction of the first movable block 310 and the second movable block 330, the circular first single-frame iron core 10 becomes the square ring-shaped second single-frame iron core 20, and the square supporting operation is completed.

[0074] Optionally, step S320 is followed by step S330.

[0075] Step S330, the auxiliary mold surrounding the first movable block 310 and the second movable block 330 is sleeved in the center hole of the first single-frame iron core 10, which is equivalent to that the auxiliary mold is sleeved between the square supporting mold and the first single-frame iron core 10.

[0076] Step S330, the first movable block 310 and the second movable block 330 are separated from each other at one time, and the auxiliary mold blocks the gap between the first movable block 310 and the second movable block 330 when they are separated from each other. When the first single-frame iron core 10 is deformed along with the first movable block 310 and the second movable block 330 moving away from each other, the auxiliary mold blocks the gap formed between the first movable block 310 and the second movable block 330, prevents the first single-frame iron core 10 from being recessed into the gap between the first movable block 310 and the second movable block 330, and ensures the forming degree of the second single-frame iron core 20.

[0077] Optionally, step S330 is followed by step S350.

[0078] Step S350, the auxiliary mold is removed, and a square inner support surrounding the first movable block 310 and the second movable block 330 is sleeved in the center hole, so that the square inner support is sleeved in the first single-frame iron core 10, and the supporting strength is improved.

[0079] Step S370, the first movable block 310 and the second movable block 330 are secondarily separated in directions away from each other, the square inner support is expanded, and the second single-frame iron core 20 is formed. That is, through the two times of separation of the first movable block 310 and the second movable block, the square is expanded twice, so that on the one hand, the requirement for the driving force of the square expansion process is reduced, and the requirement for the equipment is reduced, and on the other hand, the forming degree of the second single-frame iron core 20 is further improved through the two times of square expansion operations.

[0080] In some embodiments, step S500 specifically comprises: relative movement of the three assembling tables 201 to splice the three second single-frame iron cores 20 into the first three-phase three-dimensional iron core base 30 with three iron core columns, and the second single-frame iron core 20 on each assembling table 201 is fixedly sleeved with the first movable block 310 and the second movable block 330 in the center hole thereof during the movement. That is, after the circular square expansion operation is completed by the first movable block 310 and the second movable block 330, the second single-frame iron core 20 formed is fixedly sleeved on the first movable block 310 and the second movable block 330, and the second single-frame iron core 20 can be fixed by the first movable block 310 and the second movable block 330, so that the position of the second single-frame iron core 20 does not deviate during the movement of the assembling table 201.

[0081] Referring to Figure 5 In some embodiments, step S500 comprises the following steps:

[0082] Step S510, each assembling table 201 is horizontally flipped to vertical, driving the second single-frame iron core 20 thereon to flip, so that the first outer side surface 32 of the three second single-frame iron cores 20 on the three assembling tables 201 face each other. That is, each assembling table 201 is flipped from a lying state to a vertical state, and then each second single-frame iron core 20 is flipped from a lying state to a vertical state, so that the first outer side surface 32 of the three second single-frame iron cores 20 is vertical and faces each other.

[0083] Step S530, control the three assembling tables 201 to move in directions close to each other, so that the first outer side surface 32 of the three second single-frame iron cores 20 abut each other to form the first three-phase three-dimensional iron core base 30. After the three second single-frame iron cores 20 are flipped to the vertical state, the three assembling tables 201 are moved in directions close to each other, so that the three second single-frame iron cores 20 are close to each other to splice, and the assembly of the first three-phase three-dimensional iron core base 30 is completed. Alternatively, the three assembling tables 201 are movably arranged along three tracks with an angle of 120 degrees between each other, so that the three second single-frame iron cores 20 are spliced in a regular triangle shape.

[0084] In some embodiments, step S700 comprises step S710 and step S720.

[0085] Step S710, the first three-phase solid core base 30 is carried on the tray, and the product information of the first three-phase solid core base 30 is integrated into the label of the corresponding tray. That is, by carrying the first three-phase solid core base 30 on the tray, and saving the product information of the first three-phase solid core base 30 to the label of the corresponding tray, the label of each tray stores the product information of the first three-phase solid core base 30 carried by itself. In this way, when the tray carrying the first three-phase solid core base 30 enters the annealing furnace, if the label on the first three-phase solid core is melted by high temperature, the product information of the first three-phase solid core base 30 is still saved on the label of the tray, ensuring that the product information of the first three-phase solid core will not be lost.

[0086] Specifically, the tray and the label on the tray are high-temperature resistant and will not be melted in the annealing furnace. Moreover, in the process of circulating the first three-phase solid core base 30, the corresponding product information can be obtained by scanning the label on the tray carrying the first three-phase solid core base 30.

[0087] Step S720, the tray and the first three-phase solid core base 30 on the tray are transported into the annealing furnace, and the tray and the first three-phase solid core base 30 on the tray are transported out of the annealing furnace after the annealing is completed. The first three-phase solid core base 30 is annealed to remove the stress inside the first three-phase solid core. Alternatively, the tray and the first three-phase solid core are transported into or out of the annealing furnace by a logistics trolley.

[0088] In some embodiments, step S700 includes step S730.

[0089] Step S730, after the first three-phase solid core base 30 is annealed, the first three-phase solid core base 30 is transported into the cooling chamber, and dry cold air is circulated in the cooling chamber, so that the cooling time is shortened by blowing dry cold air to the first three-phase solid core base 30. Moreover, the dry cold air will not leave water vapor on the first three-phase solid core base 30 when passing through the first three-phase solid core base 30, which can prevent the first three-phase solid core base 30 from being corroded.

[0090] Referring to Figures 7-8 In some embodiments, step S700 includes step S750 and step S770.

[0091] In step S750, the annealed first three-phase three-dimensional core substrate 30 is disassembled, and adhesive is applied to the mating surfaces of each of the second single-frame cores 20 in the first three-phase three-dimensional core substrate 30. Then, the three second single-frame cores 20 are reassembled to form the second three-phase three-dimensional core substrate 50. Thus, after annealing, the three second single-frame cores 20 in the first three-phase three-dimensional core substrate 30 are disassembled to clean the surface of each second single-frame core 20, and then adhesive is applied to the mating surfaces of each second single-frame core 20. Finally, the three second single-frame cores 20 are reassembled to form the second three-phase three-dimensional core substrate 50 with adhesive coating on the mating surfaces.

[0092] Step S770: Apply adhesive to the outer surface of the second-three-phase three-dimensional iron core substrate 50 using a robot. Using a robot to spray and apply adhesive to the outer surface of the second-three-phase three-dimensional iron core substrate 50 can greatly improve the efficiency of the adhesive application process.

[0093] Furthermore, step S770 specifically includes steps S772 and S774.

[0094] Step S772: Place multiple second- and third-phase three-dimensional core substrates 50 side by side, each second- and third-phase three-dimensional core substrate 50 including a bottom and a top.

[0095] In step S774, the robot first applies adhesive to one of the bottom and top of a portion of the second- and three-phase three-dimensional iron cores among the multiple second- and three-phase three-dimensional iron core substrates 50. Then, while waiting for the previous adhesive layer to dry, it applies adhesive to the other portion of the bottom and top of another portion of the multiple second- and three-phase three-dimensional iron core substrates 50. When applying adhesive to the bottom of the second- and three-phase three-dimensional iron core substrate 50, the second- and three-phase three-dimensional iron core substrate 50 is suspended. When applying adhesive to the top of the second- and three-phase three-dimensional iron core substrate 50, the second- and three-phase three-dimensional iron core substrate 50 is placed horizontally on the ground.

[0096] For the second- and third-phase three-dimensional iron core substrate 50, because it is placed horizontally on the ground, it needs to be suspended before the adhesive can be applied to the bottom. However, after applying the adhesive to the bottom or top of the second- and third-phase three-dimensional iron core substrate 50, it is necessary to wait for the previous adhesive layer to dry before the suspended second- and third-phase three-dimensional iron core substrate 50 can be placed on the ground, or the placed second- and third-phase three-dimensional iron core substrate 50 can be lifted using auxiliary ropes; otherwise, the previous adhesive layer will be damaged. To save time waiting for the previous adhesive layer to dry, multiple second- and third-phase three-dimensional iron core substrates 50 are arranged in a row, and then the robot is movable along the arrangement direction.

[0097] Thus, after the glueing on the bottom of the current second three-dimensional iron core base 50 is completed, the robot can immediately glue the top of the next second three-dimensional iron core base 50, and when the glueing on the top of the next second three-dimensional iron core base 50 is completed, the glue layer on the bottom of the current second three-dimensional iron core base 50 has been dried, and at this time, the current second three-dimensional iron core base 50 can be placed on the ground, so that the robot returns to the current second three-dimensional iron core base 50 to glue the top. In this way, the robot can continuously glue the top and bottom of multiple second three-dimensional iron core bases 50 alternately, saving the time for waiting for the previous glue layer to dry, and further improving the glueing efficiency.

[0098] Referring to Figure 6 In some embodiments, after step S750, step S760 is further included.

[0099] In step S760, the stress relieving device 400 automatically knocks each iron core column of the second three-dimensional iron core base 50 to eliminate the stress inside the second three-dimensional iron core base 50. In this way, the stress relieving device 400 is used to automatically knock the second three-dimensional iron core base 50, without the need for manual knocking, saving manpower and improving work efficiency. Further, during the process of relieving the stress of the second three-dimensional iron core base 50 by the stress relieving device 400, the no-load test is performed on the second three-dimensional iron core base 50, and whether the stress relief reaches the corresponding standard is determined according to the no-load index. Alternatively, when the stress is relieved by the stress relieving device 400, the second three-dimensional iron core base 50 is hung to better eliminate the internal stress.

[0100] Specifically, the stress relieving device 400 includes a rack (not shown in the figure) and a plurality of swing mechanisms 401 provided on the rack, the rack has a working position for accommodating the first three-dimensional iron core base 30, the swing mechanism 401 includes a swing arm 402 and a knocking piece 403 provided on the swing arm 402, the swing arm 402 drives the knocking piece 403 to swing towards the working position and away from the working position, and then knocks the iron core column of the first three-dimensional iron core base 30, so as to eliminate the internal stress of the first three-dimensional iron core base 30.

[0101] Optionally, the number of the swing mechanisms 401 is two, and the two swing mechanisms 401 are arranged opposite to each other and used for knocking the opposite two sides of the radial direction of the core column. In addition, the rack includes a rotating disc, and a work station is formed above the rotating disc. The first three-phase three-dimensional core base 30 can be placed on the rotating disc. The rotating disc rotates by 120 degrees to rotate different core columns in the first three-phase three-dimensional core base 30 to the two swing mechanisms 401 to be knocked to remove stress. Further, the swing mechanisms 401 are provided in six, and the six swing mechanisms 401 are divided into three groups arranged at intervals of 120 degrees. Each group includes two swing mechanisms 401 arranged opposite to each other, which are equivalent to two swing mechanisms 401 arranged on the opposite two sides of the radial direction of each core column. The six swing mechanisms 401 are used to knock the core column at the same time to further improve the stress removal efficiency.

[0102] Further, the stress removal device 400 further includes a plurality of lifting mechanisms, each swing mechanism 401 is arranged on a lifting mechanism, and the lifting mechanism drives the swing mechanism 401 to move up and down, so that the swing mechanism 401 moves up and down along the axial direction of the core column to knock different areas of the axial direction of the core column. In some embodiments, the step S700 includes a step S780.

[0103] In step S780, during the glue brushing process, the space for the glue brushing operation is filtered by the purification device to remove harmful gases, so that the air discharged from the space for the glue brushing operation meets the emission standard, and the harmful gases volatilized from the glue layer are prevented from polluting the environment. In addition, after the air in the space for the glue brushing operation is filtered, the odor on the surface of the three-phase three-dimensional core can be removed. Specifically, a VOC treatment system is arranged in the space for the glue brushing operation as a purification device to filter and treat harmful gases.

[0104] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0105] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A method of forming a three-phase solid core, characterized by, The method comprises the following steps: forming at least three first single-frame iron cores in a circular ring shape by winding a strip; placing the three first single-frame iron cores on three assembling tables of an assembling device respectively, and supporting the first single-frame iron core on each assembling table into a second single-frame iron core in a square ring shape; relatively moving the three assembling tables to combine the three second single-frame iron cores into a first three-phase three-dimensional iron core base body with three iron core columns; annealing and glueing the first three-phase three-dimensional iron core base body to obtain a three-phase three-dimensional iron core; the step of supporting the first single-frame iron core on each assembling table into a second single-frame iron core in a square ring shape comprises the following steps: simultaneously sleeving a first movable block and a second movable block on each assembling table into a central hole of the first single-frame iron core; moving the first movable block and the second movable block away from each other to support the first single-frame iron core into the second single-frame iron core; after the step of simultaneously sleeving the first movable block and the second movable block on each assembling table into the central hole of the first single-frame iron core, the following step is further included: sleeving an auxiliary mold surrounding the first movable block and the second movable block into the central hole; once separating the first movable block and the second movable block away from each other, the auxiliary mold blocks a gap between the first movable block and the second movable block.

2. The three-phase solid core forming method of claim 1, wherein, each first single-frame iron core has a first outer side and a second outer side opposite to each other along an axial direction of the first single-frame iron core, the first outer side is an inclined surface inclined towards the second outer side in a direction from inside to outside, and the second outer side is an arc surface; the step of placing the three first single-frame iron cores on the three assembling tables of the assembling device comprises the following step: the second outer side of each first single-frame iron core is supported by the assembling table downward.

3. The three-phase solid core forming method of claim 2, wherein, the step of relatively moving the three assembling tables to combine the three second single-frame iron cores into a first three-phase three-dimensional iron core base body with three iron core columns comprises the following steps: vertically turning each assembling table to turn the second single-frame iron core on the assembling table, so that the first outer sides of the three second single-frame iron cores on the three assembling tables face each other; controlling the three assembling tables to move towards each other to make the first outer sides of the three second single-frame iron cores abut each other to form the first three-phase three-dimensional iron core base body.

4. The three-phase solid core forming method of claim 1, wherein, after the step of once separating the first movable block and the second movable block away from each other while the auxiliary mold blocks a gap between the first movable block and the second movable block, the following step is further included: removing the auxiliary mold and sleeving a square inner support surrounding the first movable block and the second movable block outside the central hole; twice separating the first movable block and the second movable block away from each other to expand the square inner support and form the second single-frame iron core.

5. The three-phase solid core forming method of claim 4, wherein, the step of relatively moving the three assembling tables to combine the three second single-frame iron cores into a first three-phase three-dimensional iron core base body with three iron core columns comprises the following steps: The three assembling tables are relatively moved to combine the three second single-frame iron cores into a first three-phase three-dimensional iron core base with three iron core columns, and the second single-frame iron core on each assembling table is fixedly sleeved with the first movable block and the second movable block in the central hole thereof during the movement.

6. The method of forming a three-phase solid core according to any one of claims 1 to 5, wherein The step of obtaining the three-phase three-dimensional iron core after the first three-phase three-dimensional iron core base is annealed and subjected to the glue brushing treatment comprises: The first three-phase three-dimensional iron core base is carried on a tray, and product information of the first three-phase three-dimensional iron core base is integrated into a label corresponding to the tray; The tray and the first three-phase three-dimensional iron core base on the tray are transported into an annealing furnace, and the tray and the three-phase three-dimensional iron core on the tray are transported out of the annealing furnace after annealing is completed.

7. The method of forming a three-phase solid core according to any one of claims 1 to 5, wherein The step of obtaining the three-phase three-dimensional iron core after the first three-phase three-dimensional iron core base is annealed and subjected to the glue brushing treatment comprises: After the first three-phase three-dimensional iron core base is annealed, the first three-phase three-dimensional iron core base is transported into a cooling chamber, and dry cold air is circulated in the cooling chamber.

8. The method of forming a three-phase solid core according to any one of claims 1 to 5, wherein The step of obtaining the three-phase three-dimensional iron core after the first three-phase three-dimensional iron core base is annealed and subjected to the glue brushing treatment comprises: The first three-phase three-dimensional iron core base after annealing is disassembled, glue brushing is performed on the butt joint surfaces of each second single-frame iron core in the first three-phase three-dimensional iron core base, and then the three second single-frame iron cores are recombined to form a second three-phase three-dimensional iron core base; The outer surface of the second three-phase three-dimensional iron core base is subjected to glue brushing by a robot.

9. The three-phase solid core forming method of claim 8, wherein, The step of spraying and brushing glue on the outer surface of the second three-phase three-dimensional iron core base by the robot specifically comprises: The plurality of second three-phase three-dimensional iron core bases are placed side by side, and each second three-phase three-dimensional iron core base comprises a bottom and a top. The robot first brushes glue on one of the bottom and the top of part of the second three-phase three-dimensional iron cores in the plurality of second three-phase three-dimensional iron core bases, and then brushes glue on the other of the bottom and the top of another part of the second three-phase three-dimensional iron cores in the plurality of second three-phase three-dimensional iron core bases during waiting for the previous glue layer to dry. When the bottom of the second three-phase three-dimensional iron core is brushed with glue, the second three-phase three-dimensional iron core is hung, and when the top of the second three-phase three-dimensional iron core is brushed with glue, the second three-phase three-dimensional iron core is placed horizontally.

10. The three-phase solid core forming method of claim 8, wherein, The step of disassembling the first three-phase three-dimensional iron core base after annealing, brushing glue on the butt joint surfaces of each second single-frame iron core in the first three-phase three-dimensional iron core base, and then recombining the three second single-frame iron cores to form a second three-phase three-dimensional iron core base further comprises the following steps: Each iron core column of the second three-phase three-dimensional iron core is automatically knocked by a stress relieving device to eliminate stress inside the first three-phase three-dimensional iron core base.

11. The method of forming a three-phase solid core according to any one of claims 1 to 5, wherein The step of obtaining the three-phase three-dimensional iron core after the first three-phase three-dimensional iron core base is annealed and subjected to the glue brushing treatment comprises: During the glue brushing process, a purification device is used to filter harmful gases in the space for the glue brushing operation.

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