CN114446627A - Manufacturing process and equipment of laminated magnetic core - Google Patents

Manufacturing process and equipment of laminated magnetic core Download PDF

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Publication number
CN114446627A
CN114446627A CN202111678532.7A CN202111678532A CN114446627A CN 114446627 A CN114446627 A CN 114446627A CN 202111678532 A CN202111678532 A CN 202111678532A CN 114446627 A CN114446627 A CN 114446627A
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CN
China
Prior art keywords
ring
blanking
elastic
lamination
punch
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Application number
CN202111678532.7A
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Chinese (zh)
Inventor
李伟
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Xuzhou Onafulin Electronic Technology Co ltd
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Xuzhou Onafulin Electronic Technology Co ltd
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Priority to CN202111678532.7A priority Critical patent/CN114446627A/en
Publication of CN114446627A publication Critical patent/CN114446627A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206Manufacturing of magnetic cores by mechanical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/10Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/20Drives or gearings; Equipment therefor relating to feed movement
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/04Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206Manufacturing of magnetic cores by mechanical means
    • H01F41/0233Manufacturing of magnetic circuits made from sheets
    • H01F41/024Manufacturing of magnetic circuits made from deformed sheets

Abstract

The invention discloses a manufacturing process and equipment of a laminated magnetic core, and relates to the technical field of magnetic core processing. The invention can punch the metal sheet to form annular lamination by driving the turntable to rotate quantitatively and matching the pressing ring punch with the blanking support cylinder, the waste material falls down from the outer part and the middle part of the blanking support cylinder, the lamination falls down to the discharge hole along with the turntable, and the separated collection of the waste material and the lamination during the lamination processing can be finished, thereby improving the processing efficiency of the lamination.

Description

Manufacturing process and equipment of laminated magnetic core
Technical Field
The invention relates to the technical field of magnetic core processing, in particular to a manufacturing process and equipment of a laminated magnetic core.
Background
Magnetic core: magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. The manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density and has the characteristic of lower loss. The nickel-zinc ferrite has the characteristics of extremely high resistivity, low magnetic permeability of less than several hundred, and the like. Ferrite cores are used in coils and transformers for various electronic devices, and laminated cores refer to core materials formed by stacking a plurality of annular single thin laminated materials into a whole and then reprocessing the laminated materials.
When single lamination is processed, annular lamination is usually processed by blanking, but in the existing blanking processing equipment, the ring and waste materials fall together after blanking, so that the lamination is difficult to be separately and orderly collected, manual sorting is needed in the later period, and the production efficiency of the magnetic core is reduced.
Disclosure of Invention
The invention aims to provide a manufacturing process and equipment of a laminated magnetic core, which aim to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a preparation equipment of lamination magnetic core, the on-line screen storage device comprises a base, the surface of base is provided with the blanking station hole that runs through from top to bottom, the inboard in blanking station hole is provided with blanking support cylinder, blanking support cylinder and base relatively fixed, the surface of base is provided with the discharge opening that runs through from top to bottom, the top of base is rotated and is installed the carousel, and the carousel is rotated the drive by actuating device, circumference is provided with multiunit blanking subassembly in the carousel, blanking subassembly includes the ring drift, ring drift slidable mounting is in the inside of carousel, blanking subassembly still includes the elastic component that promotes ring drift automatic rising, the position that the carousel bottom corresponds every group blanking subassembly all is provided with the slot that is used for inserting the sheet metal, the top of carousel is provided with lift punching press driver, when aliging between blanking subassembly and lift punching press driver and the blanking support cylinder, insert the sheet metal into the slot, push down drive through lift punching press ring drift and the cooperation of blanking support cylinder to carry out the punching press the sheet metal to the sheet metal The punching die comprises a punching support barrel, a lifting punching driver, a blanking assembly, a turntable, a blanking assembly, a blanking support, and a blanking support, and a blanking support, a lifting stamping, a blanking support, and a lifting stamping, and a blanking support, a lower portion, and a.
Preferably, the top end of the ring punch is provided with a raised part protruding upwards, the raised part bears the pressing of the lifting punching driver, the outer part of the ring punch is fixedly connected with a limiting convex ring, a containing cavity for containing the limiting convex ring to lift and rotate is arranged in the rotary table, and an elastic piece is arranged between the bottom of the limiting convex ring and the containing cavity of the rotary table, so that the ring punch is elastically supported by the elastic piece, the punching component can automatically and elastically lift after the pressing of the lifting punching driver is finished and lifted, the clamping with the punching supporting cylinder is removed, and the rotary table can smoothly rotate.
Preferably, the self-elastic pressing ring is slidably mounted inside the ring punch, the shape of the self-elastic pressing ring is the same as that of a top port of the blanking support cylinder, an elastic piece is arranged between the top of the self-elastic pressing ring and an inner cavity of the ring punch, a pressing rod penetrating through the top wall of the ring punch is fixedly connected to the top wall of the self-elastic pressing ring, the self-elastic pressing ring elastically moves downwards or the pressing rod moves downwards under pressure to assist in pressing the forming part of the metal sheet, therefore, when the blanking assembly presses down for blanking, the self-elastic pressing ring is firstly contacted with the metal sheet, the area needing to be formed is pressed in an auxiliary mode, dislocation of the area is avoided, and when blanking is finished, the self-elastic pressing ring and the formed lamination are pressed to drive the area to follow the rotary table to move.
Preferably, the bottom end of the lifting stamping driver is fixedly connected with a pressing seat, the pressing seat extends to a position corresponding to the blanking assembly, the self-elastic pressing ring is arranged to be a rigid part, the top wall of the base is arranged to be a hard table top, when the lifting stamping driver presses down, the pressing seat is driven to press a group of pressing rods in the blanking assembly after blanking forming processing, the self-elastic pressing ring is pressed to press formed laminations at the bottom of the pressing rods, and downward-bent burrs at blanking positions of the laminations are pressed and flattened.
Preferably, the top fixed mounting of base has the bottom plate of polishing, the top of carousel is provided with solid fixed pressing plate, gu fixed pressing plate sets up with base relatively fixed, the carousel turnover drives blanking subassembly and gets into solid fixed pressing plate, gu fixed pressing plate is hugged closely on the depression bar top to make from the elasticity clamping ring sticiss the shaping lamination under solid fixed pressing plate's suppression, when the carousel turnover, can drive the lamination and slide along the surface of the bottom plate of polishing under the high resistance suppression of from the elasticity clamping ring, will bend down the burr and grind the tie.
Preferably, the surface of the polishing bottom plate is provided with an inwards concave polishing slideway, the positions of the surface of the base, which are positioned at the two ends of the polishing slideway, are respectively provided with arc-length grooves for transition, two groups of arc-shaped grooves are respectively butted with the two ends of the polishing slideway, and extend into a blanking station hole and a discharge hole respectively, the two groups of arc-shaped grooves and the polishing slideway jointly form an arc-shaped channel communicated from the blanking station hole to the discharge hole, blanked laminations enter the polishing slideway through the arc-shaped grooves, a plurality of groups of lifting clamping insertion sheets are arranged between the self-elastic compression ring and the inner side wall of the ring punch head, the ring punch head is provided with a mounting groove for supporting the lifting clamping insertion sheets to slide up and down, the inner side of the self-elastic compression ring is provided with a limiting bump for pressing the lifting clamping insertion sheets, and the inner side of the lifting clamping insertion sheets is provided with a limiting bump for bearing the pressing of the ring punch head, and an elastic part is arranged between the lifting clamping insertion sheet and the mounting groove of the ring punch, when the self-elastic pressing ring is not pressed, the lifting clamping insertion sheet retracts into the mounting groove to form a whole with the ring punch, and the inner hole of a workpiece is punched along with the downward pressing movement of the ring punch, after the punching is finished, the ring punch rises, when the self-elastic pressing ring is pressed to move downwards, the self-elastic pressing ring downwards extrudes the lifting clamping insertion sheet, so that a plurality of groups of lifting clamping insertion sheets move downwards to be inserted into the inner hole of the lamination, the lamination is stably and accurately moved under the driving of the high-resistance pressing of the self-elastic pressing ring and the insertion of the lifting clamping insertion sheet, and when the punching assembly drives the lamination to slide in the polishing slideway, the outer edges of the lamination are contacted with the inner walls on two sides of the polishing slideway of the polishing bottom plate.
Preferably, a gear is fixedly connected to the outside of the ring punch, the gear extends out of the circumferential side wall of the rotary table, an installation space for accommodating rotation and lifting of the gear is arranged inside the rotary table, an arc-shaped rack is arranged outside the base, the arc-shaped rack and the base are relatively and fixedly installed, at the moment, an elastic piece between the self-elastic press ring and the rotary table is a non-fixed support, namely, the bottom end of the elastic piece is fixedly connected with the rotary table, the top end of the elastic piece is in sliding fit with the self-elastic press ring, when the blanking assembly enters the fixed press plate to continuously move, the gear is meshed with the arc-shaped rack to drive the ring punch to rotate, the fixed press plate presses the self-elastic press ring to tightly press the lamination, when the rotary table rotates to drive the ring punch and the lamination to slide, the gear is meshed with the arc-shaped rack to drive the ring punch to rotate, and further drive the lamination to rotate while sliding in a polishing slide way of the polishing bottom burr, the outer edge of the lamination may also be ground to make the outer edge of the lamination smoother.
Preferably, the inside of base still is provided with takes out the dirt mouth, takes out the bottom setting that the dirt mouth corresponds the blanking subassembly, takes out the bottom fixedly connected with convulsions dust absorption pipeline of dirt mouth, and the blanking subassembly is taken out the dirt mouth and is carried out the dust absorption to the blanking subassembly bottom when taking out the dirt mouth.
Preferably, the cutter head is decided to the equal fixedly connected with in both sides at blanking support barrel top, and the cutter head is provided with the breach to the correspondence of the bottom of ring drift, and the blanking is pushed down to the ring drift, decides the cooperation of cutter head and ring drift breach, decides the outside waste material of sheet metal for the waste material of deciding can be taken out to the blanking support barrel outside, need not dismantle the blanking support barrel and take out.
A manufacturing process of a laminated magnetic core comprises the following steps:
selecting an alloy material, selecting a metal coiled material with a corresponding width according to the outer diameter size of the laminated ring piece, and cutting the metal coiled material into rectangular metal sheets;
step two, forming processing, namely controlling the rotary table to rotate, aligning a group of blanking assemblies with a blanking support cylinder, inserting metal sheets into corresponding slots at the bottom of the rotary table, controlling a lifting stamping driver to press and stamp, pressing a ring piece punch to descend rapidly, and blanking annular single laminations under the matching of the ring piece punch and the blanking support cylinder;
step three, separating and conveying, namely, allowing the waste materials punched by the ring punch to fall from a punching station hole, then controlling a lifting punching driver to ascend, enabling the ring punch to reset under the pushing of elastic force, then controlling a turntable to rotate for a certain angle, enabling a next punching assembly to move to a punching support cylinder for punching, and enabling the formed lamination to continuously rotate along with the turntable for conveying backwards;
step four, collecting the laminations, namely placing a collecting box at the bottom of the discharge hole, gradually dropping the laminations from the discharge hole along with the continuous rotation of the turntable, and replacing a new collecting box after collecting the laminations to a certain amount;
step five, surface treatment, namely shaping and polishing the collected laminations, and collecting the treated laminations in groups according to a certain quantity;
step six, annealing and crystallizing, wherein the collected laminations are penetrated into a specially-made core mould according to groups and put into an amorphous annealing furnace for crystallization and annealing;
and step seven, baking and curing, namely putting the crystallized laminated sheet into a curing agent to be soaked for 30 minutes, taking out and drying the laminated sheet, putting the dried laminated sheet into an oven to be baked and cured, and curing a plurality of laminated sheets under the support of the core mold to form the whole laminated magnetic core.
In the technical scheme, the invention provides the following technical effects and advantages:
1. the rotary table is driven to rotate quantitatively, slots are arranged at positions, corresponding to each group of blanking assemblies, of the bottom of the rotary table, metal sheets are inserted into the slots at the blanking station holes, ring punch heads are pressed to move downwards to be matched with the blanking supporting cylinder to stamp the metal sheets to form annular laminations, waste materials generated by stamping fall downwards from the outer portion and the middle portion of the blanking supporting cylinder, the formed laminations are reserved between the blanking supporting cylinder and the ring punch heads, after a lifting stamping driver rises, the blanking assemblies reset, the laminations rotate to the discharge holes along with the rotary table to fall and blank, and the waste materials and the laminations during lamination processing can be collected separately, so that the processing efficiency of the laminations is improved.
2. According to the invention, the top wall of the self-elastic pressing ring is fixedly connected with the pressing rod penetrating through the top wall of the ring punch, so that the self-elastic pressing ring can be pressed by using external pressure, the pressing seat is installed at the bottom end of the lifting stamping driver in an extending mode, the self-elastic pressing ring is set to be a rigid part, the top wall of the base is set to be a hard table top, and therefore, when the lifting stamping driver presses down, the pressing seat is driven to press the pressing rod in a group of blanking assemblies after blanking forming processing, the self-elastic pressing ring is pressed to press the formed lamination at the bottom of the blanking assembly, downward bending burrs at the blanking part of the lamination are pressed and flattened, and the processing effect on the lamination is further improved.
3. According to the invention, the grinding bottom plate is arranged at the top of the base, the fixed pressing plate and the arc-shaped rack are arranged outside the rotary table, the rotary table is rotated to drive the blanking assembly to enter the fixed pressing plate, the self-elastic pressing ring is pressed to form the lamination under the pressing of the fixed pressing plate by the pressing rod, the gear is fixedly connected outside the ring punch, after the blanking assembly enters the fixed pressing plate, the gear is meshed with the arc-shaped rack to drive the ring punch to rotate, and further the lamination is driven to rotate while sliding in the grinding slide way of the grinding bottom plate, so that the outer edge of the lamination can be ground while the bottom burr is ground, the outer edge of the lamination is smoother, the machining efficiency of the lamination is greatly improved, the forming quality of the lamination is greatly improved, and a large amount of manpower is saved.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a longitudinal sectional view of the present invention.
Fig. 3 is a schematic view illustrating a blanking state of the lamination of fig. 1 according to the present invention.
Fig. 4 is a schematic structural composition of a laminated magnetic core of the present invention.
Fig. 5 is a schematic view of the present invention showing the formation of the kick-down burr when the laminate is punched.
Fig. 6 is a schematic view of the present invention in the configuration of flattening burrs.
Fig. 7 is a top view of the present invention in the configuration of flattened burrs.
Fig. 8 is a longitudinal sectional view of the present invention employing a flash configuration.
Fig. 9 is a top view of the present invention in the configuration of a ground burr.
Fig. 10 is a schematic view of the structure of the present invention when the outer edge of the lamination is ground flat.
FIG. 11 is an enlarged view of the portion A of FIG. 10 according to the present invention.
Fig. 12 is a bottom view of a ring punch of the present invention.
Figure 13 is a top view of the present invention grinding the outer edges of the laminations and the burr structure.
Figure 14 is a top view of a base pan of the present invention grinding the outer edges of the laminations and the burr structure.
Fig. 15 is a schematic view of the overall structure of the blanking support cylinder according to the present invention.
Description of reference numerals:
1. a base; 11. blanking the supporting cylinder; 12. blanking a station hole; 13. a discharge hole; 14. cutting off a cutter head; 15. a dust extraction port; 16. fixing the pressing plate; 17. polishing the bottom plate; 18. an arc-shaped rack; 2. a turntable; 3. a blanking assembly; 31. a ring punch; 32. a self-elastic compression ring; 33. a limit convex ring; 34. a pressure lever; 35. a gear; 36. lifting and clamping the inserting sheet; 4. a lifting stamping driver; 41. and (6) pressing a seat.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
The invention provides a manufacturing device of a laminated magnetic core as shown in figures 1-13, which comprises a base 1, wherein the surface of the base 1 is provided with a blanking station hole 12 which penetrates through the base up and down, the inner side of the blanking station hole 12 is provided with a blanking support cylinder 11, the blanking support cylinder 11 and the base 1 are relatively fixed, namely, the blanking support cylinder 11 and the base 1 are jointly installed on the same support frame body, the blanking support cylinder 11 and the base 1 always keep unchanged in position, the surface of the base 1 is provided with a discharge hole 13 which penetrates through the base up and down, the top of the base 1 is rotatably provided with a turntable 2, the turntable 2 is rotatably driven by a rotary driving device such as a driving motor, a hydraulic motor or an engine, a plurality of groups of blanking assemblies 3 are arranged on the inner circumference of the turntable 2, each blanking assembly 3 comprises a ring punch 31, the ring punch 31 is slidably installed in the turntable 2, each blanking assembly 3 further comprises an elastic piece which pushes the ring punch 31 to automatically rise, the bottom of the rotary table 2 is provided with slots for inserting metal sheets at positions corresponding to each group of blanking assemblies 3, a lifting stamping driver 4 is arranged above the rotary table 2, the lifting stamping driver 4 can adopt equipment for blanking driving such as a hydraulic driving lifting rod, a crank pressure rod group and the like, when the blanking assemblies 3 are aligned with the lifting stamping driver 4 and the blanking supporting cylinder 11, the metal sheets are inserted into the slots, the lifting punching driver 4 is used for downwards pressing and driving the pressing ring punch 31 to be matched with the blanking support cylinder 11 to punch the metal sheets to form laminated sheets, waste materials generated by punching fall downwards from the outer part and the middle part of the blanking support cylinder 11, the formed laminated sheets are left in the slots, after the lifting stamping driver 4 rises, the elastic component in the blanking component 3 pushes the blanking component 3 to rise, and the lamination rotates to the discharging hole 13 along with the turntable 2 in the slot to fall and be discharged.
Further, as shown in fig. 2, a protruding portion protruding upwards is arranged at the top end of the ring punch 31, the protruding portion supports pressing of the lifting stamping driver 4, a limiting convex ring 33 is fixedly connected to the outside of the ring punch 31, an accommodating cavity for accommodating the lifting and rotating of the limiting convex ring 33 is arranged in the rotary table 2, an elastic member is arranged between the bottom of the limiting convex ring 33 and the accommodating cavity of the rotary table 2, and the elastic member can be a reed or a spring;
in the above-described technical solution, the ring punch 31 is elastically supported by the elastic member, so that the punch assembly 3 can automatically elastically ascend after the ascending and descending punch driver 4 ascends after the pressing is completed, and the engagement with the punch support cylinder 11 is released, so that the turntable 2 can smoothly rotate.
Further, as shown in fig. 2, a self-elastic pressing ring 32 is slidably mounted inside the ring punch 31, the shape of the self-elastic pressing ring 32 is the same as that of the top port of the blanking support cylinder 11, an elastic piece is arranged between the top of the self-elastic pressing ring 32 and the inner cavity of the ring punch 31, the elastic piece can be a reed or a spring, a pressing rod 34 penetrating through the top wall of the ring punch 31 is fixedly connected to the top wall of the self-elastic pressing ring 32, and the self-elastic pressing ring 32 elastically moves downwards or the pressing rod 34 moves downwards under pressure to assist in pressing the forming part of the metal sheet;
in above-mentioned technical scheme, when blanking subassembly 3 pushes down the blanking, from the elastic compression ring 32 earlier with the sheet metal contact, assist the suppression to the region that needs the shaping, avoid its dislocation to when the blanking is finished, utilize the suppression of from elastic compression ring 32 and shaping back lamination, drive it and follow carousel 2 motion.
Further, in order to better remove burrs and deformation areas formed at the bottom part generated during the punching and forming of the lamination, the following two schemes can be adopted:
the first scheme is as follows: as shown in fig. 6 and 7, the bottom end of the lifting punching driver 4 is fixedly connected with a pressing base 41, the pressing base 41 extends to a position corresponding to the blanking assembly 3, the self-elastic pressing ring 32 is arranged as a rigid component, and the top wall of the base 1 is arranged as a hard table;
in the scheme, when the lifting stamping driver 4 presses down, the pressing seat 41 is driven to press the pressing rods 34 in the blanking assembly 3 after a group of blanking processing is performed, the automatic elastic pressing ring 32 is pressed to press the formed lamination at the bottom of the pressing rod, and downward bending burrs at the blanking part of the lamination are flattened.
Scheme II: as shown in fig. 8-9, a polishing bottom plate 17 is fixedly installed on the top of the base 1, a fixed pressing plate 16 is installed on the top of the turntable 2, the fixed pressing plate 16 and the base 1 are relatively fixedly installed, that is, the fixed pressing plate 16 and the base 1 are installed on the same support frame body together, the positions of the fixed pressing plate 16 and the base 1 are always fixed, the turntable 2 is rotated to drive the blanking assembly 3 to enter the fixed pressing plate 16, and the top end of the pressing rod 34 is tightly attached to the fixed pressing plate 16;
in the scheme, the self-elastic pressing ring 32 is pressed to form the lamination under the pressing of the fixed pressing plate 16, the bottom of the self-elastic pressing ring 32 is provided with a part with a rubber layer, anti-slip grains are arranged at the bottom of the rubber layer, and when the turntable 2 is in circulation, the lamination can be driven to slide along the surface of the polishing bottom plate 17 under the high-resistance pressing of the self-elastic pressing ring 32, so that downward-bending burrs are polished.
Further, based on the second scheme, in order to better solve the problem that the edge side of the outer edge of the lamination is not smooth enough, the following technical scheme is adopted: as shown in fig. 10-15, the surface of the polishing bottom plate 17 is provided with a concave polishing slideway, the positions of the surface of the base 1 at the two ends of the polishing slideway are both provided with arc-length grooves for transition, two sets of the arc-shaped grooves are respectively butted with the two ends of the polishing slideway, and the two sets of the arc-shaped grooves respectively extend into the blanking station hole 12 and the discharge hole 13, the two sets of the arc-shaped grooves and the polishing slideway together form an arc-shaped channel communicated from the blanking station hole 12 to the discharge hole 13, as shown in fig. 11 and 12, a plurality of sets of lifting clamping insertion sheets 36 are arranged between the self-elastic pressing ring 32 and the inner side wall of the ring punch 31, the ring punch 31 is provided with an installation groove for supporting the lifting clamping insertion sheets 36 to slide up and down, the inner side of the self-elastic pressing ring 32 is provided with a limiting bump for pressing the lifting clamping insertion sheets 36, the inner side of the lifting clamping insertion sheets 36 is provided with a limiting bump for bearing the ring punch 31 to press, an elastic piece is arranged between the lifting clamping insertion sheet 36 and the mounting groove of the ring piece punch 31, when the self-elastic press ring 32 is not pressed, the lifting clamping insertion sheet 36 retracts into the mounting groove to form a whole with the ring piece punch 31, and the inner hole of a workpiece is punched along with the downward pressing movement of the ring piece punch 31, after the punching is finished, the ring piece punch 31 rises, when the self-elastic press ring 32 is pressed and moves downward, the lifting clamping insertion sheet 36 is pressed downward by the self-elastic press ring 32, so that a plurality of groups of lifting clamping insertion sheets 36 move downward to be inserted into the inner hole of the lamination, the lamination is stably and accurately moved under the high-resistance pressing of the self-elastic press ring 32 and the insertion and closing driving of the lifting clamping insertion sheets 36, when the blanking assembly 3 drives the lamination to slide in the polishing slide, the outer edge of the lamination is contacted with the inner walls at two sides of the polishing slide of the polishing bottom plate 17, and the sliding of the lamination is guided and supported;
in the above technical solution, the gear 35 is fixedly connected to the outside of the ring punch 31, the gear 35 extends out of the circumferential side wall of the turntable 2, the inside of the turntable 2 is provided with an installation space for accommodating rotation and lifting of the gear 35, the outside of the base 1 is provided with the arc-shaped rack 18, the arc-shaped rack 18 and the base 1 are relatively fixedly installed, that is, the arc-shaped rack 18 and the base 1 are jointly fixedly installed on the same support frame body, and the two positions are always fixed to each other, at this time, the elastic member between the self-elastic clamping ring 32 and the turntable 2 is an unfixed support, that is, the bottom end of the elastic member is fixedly connected with the turntable 2, and the top end is in sliding fit with the self-elastic clamping ring 32;
in the above technical scheme, when the blanking assembly 3 enters the fixed pressing plate 16 to continue moving, the gear 35 and the arc-shaped rack 18 are meshed with each other to drive the ring punch 31 to rotate, the fixed pressing plate 16 presses the self-elastic pressing ring 32 to tightly press the lamination, and the lifting clamping insertion sheet 36 clamps the inner side of the lamination, when the turntable 2 is in circulation to drive the ring punch 31 and the lamination to slide, the gear 35 and the arc-shaped rack 18 are meshed to drive the ring punch 31 to rotate, so as to drive the lamination to rotate while sliding in the polishing slideway of the polishing bottom plate 17, so that the outer edge of the lamination can be polished while the bottom burr is polished, and the outer edge of the lamination is smoother.
Further, as shown in fig. 14, a dust extraction opening 15 is further formed in the base 1, the dust extraction opening 15 is formed in the bottom of the blanking assembly 3, an air extraction and dust collection pipeline is fixedly connected to the bottom of the dust extraction opening 15, and the dust extraction opening 15 is used for collecting dust at the bottom of the blanking assembly 3 when the blanking assembly 3 passes through the dust extraction opening 15.
Further, as shown in fig. 15, both sides of the top of the blanking support cylinder 11 are fixedly connected with a cutting-off tool bit 14, and the bottom end of the ring punch 31 is provided with a notch corresponding to the cutting-off tool bit 14;
in the above technical solution, the ring punch 31 is pressed down for blanking, the cutting tool bit 14 is matched with the gap of the ring punch 31, and the waste material on the outer side of the metal sheet is cut, so that the cut waste material can be drawn out to the outer side of the blanking supporting cylinder 11, and the blanking supporting cylinder 11 does not need to be disassembled for taking out.
A manufacturing process of a laminated magnetic core comprises the following steps:
selecting an alloy material, selecting a metal coiled material with a corresponding width according to the outer diameter size of the laminated ring piece, and cutting the metal coiled material into rectangular metal sheets;
step two, forming processing, namely controlling the rotary table 2 to rotate, aligning a group of blanking assemblies 3 with a blanking support cylinder 11, inserting metal sheets into corresponding slots at the bottom of the rotary table 2, controlling the lifting stamping driver 4 to press down for stamping, rapidly descending the ring pressing punch 31, and blanking annular single laminations under the matching of the ring pressing punch 31 and the blanking support cylinder 11;
step three, separating and conveying, namely, the waste materials blanked by the ring punch 31 fall from the blanking station hole 12, then the lifting stamping driver 4 is controlled to ascend, the ring punch 31 resets under the pushing of elastic force, then the rotary table 2 is controlled to rotate for a certain angle, the next blanking assembly 3 is moved to the blanking support cylinder 11 for blanking, and the formed lamination is continuously rotated along with the rotary table 2 and conveyed backwards;
step four, collecting the laminations, namely placing a collecting box at the bottom of the discharge hole 13, gradually dropping the laminations from the discharge hole 13 along with the continuous rotation of the turntable 2, and replacing a new collecting box after collecting the laminations to a certain number;
step five, surface treatment, namely shaping and polishing the collected laminations, and collecting the treated laminations in groups according to a certain quantity;
step six, annealing and crystallizing, wherein the collected laminations are penetrated into a specially-made core mould according to groups and put into an amorphous annealing furnace for crystallization and annealing;
and step seven, baking and curing, namely putting the crystallized laminated sheet into a curing agent to be soaked for 30 minutes, taking out and drying the laminated sheet, putting the dried laminated sheet into an oven to be baked and cured, and curing a plurality of laminated sheets under the support of the core mold to form the whole laminated magnetic core.
The working principle is as follows: through the combined use of the base 1 and the turntable 2, the turntable 2 is driven to rotate quantitatively by using driving equipment such as a driving motor, slots are arranged at the bottom of the turntable 2 corresponding to the positions of each group of blanking assemblies 3, in the actual processing, a group of blanking assemblies 3 is controlled to be aligned with the lifting stamping driver 4 and the blanking supporting cylinder 11, a metal sheet is inserted into the slots at the position of the blanking station hole 12, the lifting stamping driver 4 presses down to drive the ring piece punch 31 to press down, the ring piece punch 31 is matched with the blanking supporting cylinder 11 to stamp the metal sheet, annular lamination can be formed, waste materials generated by stamping fall down from the outer part and the middle part of the blanking supporting cylinder 11, the formed lamination is left between the blanking supporting cylinder 11 and the ring piece punch 31, after the lifting stamping driver 4 rises, the elastic assembly in the blanking assembly 3 pushes the punch piece 31 to rise, the lamination rotates to the position of the discharge hole 13 along with the turntable 2 and falls for blanking, so that the separated collection of waste materials and laminations during the lamination processing can be completed, the self-elastic pressing ring 32 is slidably mounted in the ring punch 31, when the blanking assembly 3 presses down for blanking, the self-elastic pressing ring 32 is firstly contacted with a metal sheet, the region needing to be formed is pressed in an auxiliary mode, the dislocation of the region is avoided, after the blanking is finished, when the ring punch 31 rises, the formed lamination can be pushed downwards by the self-elastic pressing ring 32 to be prevented from being clamped in the ring punch 31, and the lamination after the forming can be driven to move along with the turntable 2 by the pressing of the self-elastic pressing ring 32 and the formed lamination;
furthermore, in the blanking process, a blanking part of the lamination generates slight downward-deformed burrs, the deformed burrs need to be processed, a pressure rod 34 penetrating through the top wall of the ring punch 31 is fixedly connected to the top wall of the self-elastic pressure ring 32, so that the self-elastic pressure ring 32 can be pressed by external pressure, a pressure seat 41 is installed at the bottom end of the lifting stamping driver 4 in an extending manner, the self-elastic pressure ring 32 is set as a rigid part, and the top wall of the base 1 is set as a hard table top, so that when the lifting stamping driver 4 presses down, the pressure seat 41 is driven to press the pressure rod 34 in a group of blanking assemblies 3 after blanking forming, the self-elastic pressure ring 32 is pressed to press the formed lamination at the bottom of the pressing seat, and the downward-bent burrs at the blanking part of the lamination are flattened;
meanwhile, a polishing bottom plate 17 is arranged on the top of the base 1, a fixed pressing plate 16 and an arc-shaped rack 18 are arranged outside the rotary table 2, the rotary table 2 is rotated to drive the blanking assembly 3 to enter the fixed pressing plate 16, a pressing rod 34 is pressed by the fixed pressing plate 16 to tightly press the self-elastic pressing ring 32 to form a lamination, the bottom of the self-elastic pressing ring 32 is provided with a part with a rubber layer, and anti-slip grains are arranged at the bottom of the rubber layer, when the rotary table 2 is rotated, the lamination is driven to slide along the surface of the polishing bottom plate 17 under the high-resistance pressing of the self-elastic pressing ring 32, a gear 35 is fixedly connected to the outside of the ring punch 31, after the blanking assembly 3 enters the fixed pressing plate 16, the gear 35 is meshed with the arc-shaped rack 18 to drive the ring punch 31 to rotate, so as to drive the lamination to rotate while sliding in a polishing slideway of the polishing bottom plate 17, thereby polishing bottom burrs, the outer edge of the lamination can be polished, so that the outer edge of the lamination is smoother, the machining efficiency of the lamination is greatly improved, the forming quality of the lamination is greatly improved, and a large amount of manpower is saved.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (10)

1. The utility model provides a preparation equipment of lamination magnetic core, includes base (1), the surface of base (1) is provided with blanking station hole (12) that run through from top to bottom, the inboard of blanking station hole (12) is provided with blanking support section of thick bamboo (11), its characterized in that: the surface of the base (1) is provided with a discharge hole (13) which penetrates up and down, the top of the base (1) is rotatably provided with a turntable (2), a plurality of groups of blanking assemblies (3) are arranged in the inner circumference of the turntable (2), each blanking assembly (3) comprises a ring punch (31) which is slidably arranged in the turntable (2), the blanking assembly (3) also comprises an elastic piece for pushing the ring punch (31) to automatically rise, the bottom of the rotary table (2) is provided with a slot for inserting a metal sheet at the position corresponding to each group of blanking assemblies (3), the punching die is characterized in that a lifting punching driver (4) is arranged above the rotary table (2), the lifting punching driver (4) presses down to drive a pressing ring punch (31) to be matched with the punching supporting cylinder (11) to punch a metal sheet to form a laminated sheet, and the laminated sheet rotates to a discharge hole (13) along with the rotary table (2) in a slot to fall and be discharged.
2. The laminated magnetic core manufacturing apparatus according to claim 1, wherein: the top end of the ring piece punch (31) is provided with an upward convex part, the convex part supports the pressing of the lifting punching driver (4), the outer part of the ring piece punch (31) is fixedly connected with a limiting convex ring (33), a containing cavity for containing the limiting convex ring (33) to lift and rotate is arranged in the rotary table (2), and an elastic piece is arranged between the bottom of the limiting convex ring (33) and the containing cavity of the rotary table (2).
3. The laminated magnetic core manufacturing apparatus according to claim 1, wherein: the utility model discloses a punching die for metal sheets, including ring piece drift (31), self-elastic ring (32), elastic piece, pressure bar (34) that the top wall of ring piece drift (31) was worn out from the top fixedly connected with of self-elastic ring (32), the inside slidable mounting of ring piece drift (31) has from elastic ring (32), the top port shape of self-elastic ring (32) and blanking support section of thick bamboo (11) is the same, just set up the elastic piece between the inner chamber of self-elastic ring (32) top and ring piece drift (31), the supplementary suppression of shaping position to metal sheet moves down from elastic ring (32).
4. A laminated core fabrication apparatus as recited in claim 3, wherein: the bottom fixedly connected with of lift punching press driver (4) presses seat (41), from elastic compression ring (32) set up to the rigidity part, the roof of base (1) sets up to the stereoplasm mesa, lift punching press driver (4) push down and drive and press seat (41) to suppress one of them a set of depression bar (34).
5. A laminated core fabrication apparatus as recited in claim 3, wherein: the top fixed mounting of base (1) has polishing bottom plate (17), the top of carousel (2) is provided with solid fixed pressing plate (16), solid fixed pressing plate (16) and base (1) relatively fixed set up, carousel (2) turnover drives blanking subassembly (3) and gets into solid fixed pressing plate (16), and gu fixed pressing plate (16) are hugged closely on depression bar (34) top to make from elasticity clamping ring (32) sticiss the shaping lamination under the suppression of solid fixed pressing plate (16), when carousel (2) turnover, drive the lamination and slide along the surface of polishing bottom plate (17).
6. The laminated magnetic core manufacturing apparatus according to claim 5, wherein: the surface of the polishing bottom plate (17) is provided with an inwards concave polishing slide way, the positions of the surface of the base (1) at the two ends of the polishing slide way are respectively provided with arc-length grooves for transition, two groups of arc-shaped grooves are respectively butted with the two ends of the polishing slide way, and extend into the blanking station hole (12) and the discharge hole (13), the two groups of arc-shaped grooves and the polishing slide way jointly form an arc-shaped channel communicated from the blanking station hole (12) to the discharge hole (13), punched laminations enter the polishing slide way through the arc-shaped grooves, a plurality of groups of lifting clamping insertion pieces (36) are arranged between the self-elastic pressing ring (32) and the inner side wall of the ring piece (31), a mounting groove for supporting the lifting clamping insertion pieces (36) to slide up and down is arranged in the punch (31), and a limiting convex block for pressing the lifting clamping insertion pieces (36) to move down is arranged on the inner side of the self-elastic pressing ring piece (32), the inboard of going up and down chucking inserted sheet (36) is provided with the spacing lug that is used for accepting ring drift (31) suppression, just be provided with the elastic component between the mounting groove of going up and down chucking inserted sheet (36) and ring drift (31), blanking subassembly (3) drive lamination when sliding in the slide of polishing, the outward flange of lamination and the both sides inner wall contact of the slide of polishing of bottom plate (17).
7. The laminated magnetic core manufacturing apparatus according to claim 6, wherein: the punching die is characterized in that a gear (35) is fixedly connected to the outer portion of the ring punch (31), the gear (35) extends out of the circumferential side wall of the rotary table (2), an installation space for accommodating the rotation and lifting of the gear (35) is arranged inside the rotary table (2), an arc-shaped rack (18) is arranged outside the base (1), the arc-shaped rack (18) and the base (1) are fixedly installed relatively, when the punching assembly (3) enters the fixed pressing plate (16) to move continuously, the gear (35) and the arc-shaped rack (18) are meshed with each other to drive the ring punch (31) to rotate, and then the lamination is driven to rotate while sliding in the polishing slide way of the polishing bottom plate (17).
8. The laminated magnetic core manufacturing apparatus according to claim 1, wherein: the inside of base (1) still is provided with takes out dirt mouth (15), take out the bottom setting that dirt mouth (15) correspond blanking subassembly (3), the bottom fixedly connected with convulsions dust absorption pipeline of taking out dirt mouth (15).
9. The laminated magnetic core manufacturing apparatus according to claim 1, wherein: cutter head (14) are decided to the equal fixedly connected with in both sides at blanking support cylinder (11) top, cutter head (14) are decided to the bottom correspondence of ring drift (31) and are provided with the breach, ring drift (31) push down the blanking, decide cutter head (14) and ring drift (31) breach cooperation, decide sheet metal's outside waste material.
10. A process for manufacturing a laminated magnetic core using the apparatus of claim 1, comprising the steps of:
selecting an alloy material, selecting a metal coiled material with a corresponding width according to the outer diameter size of the laminated ring piece, and cutting the metal coiled material into rectangular metal sheets;
step two, forming, namely controlling the rotary table (2) to rotate, aligning a group of blanking assemblies (3) with a blanking support cylinder (11), inserting metal sheets into corresponding slots at the bottom of the rotary table (2), controlling the lifting stamping driver (4) to press down for stamping, rapidly descending the ring piece stamping head (31) in a pressing mode, and blanking annular single laminations under the matching of the ring piece stamping head (31) and the blanking support cylinder (11);
thirdly, separating and conveying, namely, blanking waste materials of the ring punch (31) fall from a blanking station hole (12), then controlling a lifting stamping driver (4) to ascend, resetting the ring punch (31) under the pushing of elastic force, then controlling a turntable (2) to rotate for a certain angle, enabling a next blanking assembly (3) to move to a blanking supporting cylinder (11) for blanking, and continuously rotating the formed lamination along with the turntable (2) for conveying backwards;
step four, collecting the laminations, namely placing a collecting box at the bottom of the discharge hole (13), gradually dropping the laminations from the discharge hole (13) along with the continuous rotation of the turntable (2), and replacing a new collecting box after collecting the laminations to a certain amount;
step five, surface treatment, namely shaping and polishing the collected laminations, and grouping and collecting the treated laminations according to a certain quantity;
step six, annealing and crystallizing, wherein the collected laminations are penetrated into a specially-made core mold according to groups and placed into an amorphous annealing furnace for crystallization and annealing treatment;
and step seven, baking and curing, namely putting the crystallized laminated sheet into a curing agent to be soaked for 30 minutes, taking out and drying the laminated sheet, putting the dried laminated sheet into an oven to be baked and cured, and curing a plurality of laminated sheets under the support of the core mold to form the whole laminated magnetic core.
CN202111678532.7A 2021-12-31 2021-12-31 Manufacturing process and equipment of laminated magnetic core Withdrawn CN114446627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111678532.7A CN114446627A (en) 2021-12-31 2021-12-31 Manufacturing process and equipment of laminated magnetic core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111678532.7A CN114446627A (en) 2021-12-31 2021-12-31 Manufacturing process and equipment of laminated magnetic core

Publications (1)

Publication Number Publication Date
CN114446627A true CN114446627A (en) 2022-05-06

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Application Number Title Priority Date Filing Date
CN202111678532.7A Withdrawn CN114446627A (en) 2021-12-31 2021-12-31 Manufacturing process and equipment of laminated magnetic core

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114871767A (en) * 2022-07-11 2022-08-09 徐州金达五金工具制造有限公司 Manufacturing process and equipment for special-shaped stamping part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114871767A (en) * 2022-07-11 2022-08-09 徐州金达五金工具制造有限公司 Manufacturing process and equipment for special-shaped stamping part

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Application publication date: 20220506