CN117394620A - Device and method for bonding iron core through vacuum infiltration adhesive - Google Patents
Device and method for bonding iron core through vacuum infiltration adhesive Download PDFInfo
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- CN117394620A CN117394620A CN202311380338.XA CN202311380338A CN117394620A CN 117394620 A CN117394620 A CN 117394620A CN 202311380338 A CN202311380338 A CN 202311380338A CN 117394620 A CN117394620 A CN 117394620A
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000001764 infiltration Methods 0.000 title claims abstract description 33
- 230000008595 infiltration Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000853 adhesive Substances 0.000 title description 6
- 230000001070 adhesive effect Effects 0.000 title description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 82
- 239000003292 glue Substances 0.000 claims abstract description 39
- 230000009471 action Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 20
- 238000004026 adhesive bonding Methods 0.000 claims description 11
- 238000005086 pumping Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010073 coating (rubber) Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a device and a method for adhering an iron core through vacuum infiltration glue, which relate to the technical field of motor iron core processing and comprise a base, a mandrel, positioning keys and a vacuum pump, wherein the mandrel is fixedly arranged on the base, a hollow cavity is arranged in the mandrel, the mandrel is provided with a plurality of channels which are uniformly and alternately arranged along the circumferential direction, the channels are axially arranged along the mandrel, the channels are communicated with the hollow cavity, the channels form notches at the outer edge of the mandrel, at least two positioning keys are axially arranged along the mandrel, the positioning keys are fixed at the outer periphery of the mandrel, and the vacuum pump is communicated with the hollow cavity of the mandrel through an air pipe. When the silicon steel sheet iron core is particularly in operation, a plurality of silicon steel sheets of the iron core are orderly laminated on the base and outside the mandrel under the action of the positioning key, each tooth of the silicon steel sheets is opposite to one notch, each notch is aligned to the right center position of each tooth of the silicon steel sheets, the vacuum pumping is carried out on the cavity through the vacuum pump to form a negative pressure environment, and glue coated on the outer periphery of the silicon steel sheets sequentially extends along the yoke part, the tooth part and the tooth tip of the silicon steel sheets.
Description
Technical Field
The invention relates to the technical field of motor iron core processing, in particular to a device and a method for vacuum infiltration adhesive bonding of an iron core.
Background
The stator and rotor iron core is formed by gluing and bonding a certain number of silicon steel sheets, and the number of the silicon steel sheets required to be bonded is large because the iron core has a certain height.
CN109698590B discloses a method for vacuum glue filling of a permanent magnet motor rotor, wherein pressure is applied along the axial direction of a permanent magnet motor shaft to press each iron core punching sheet, the rotor is placed in a vacuum chamber, vacuumized and then glue-filled, and the glue-filled rotor is placed in a tunnel drying tunnel for drying in sections. When glue is filled, the vacuum is pumped, so that the inside of the installation groove of the magnetic steel is in a negative pressure state, and the glue injection flowing speed and the filling property of glue solution are improved.
The comparison document CN109698590B does not relate to the guarantee of glue spreading uniformity due to the large number of silicon steel sheets, the number of notches existing in a single silicon steel sheet being large, which has the disadvantage in this respect.
In the common technology, the glue coating is uneven, the labor intensity is high and the production efficiency is low in the modes of manual glue coating, glue coating by using a glue dispenser and the like.
Disclosure of Invention
The application provides a device and a method for bonding an iron core through vacuum infiltration, which solve the problem of uneven gluing existing during bonding of the iron core.
The utility model provides a device of iron core is glued to vacuum infiltration, the on-line screen storage device comprises a base, the dabber, at least two locate key and vacuum pump, dabber fixed mounting draws the cavity in the dabber, the bottom of drawing the cavity is uncovered setting, draw the cavity bottom open through the base upper edge face and seal, the dabber is equipped with a plurality of channels of following circumference even interval arrangement, the axial arrangement of dabber is followed to the channel, the channel with draw the cavity intercommunication, the channel forms the notch in the outer fringe department of dabber, at least two locate key set up along the axial of dabber, the locate key is fixed in the peripheral department of dabber, the vacuum pump draws the cavity intercommunication through trachea and dabber, under the device is used for the effect of iron core bonding, a plurality of silicon steel sheets of iron core are neatly folded and are outside base and dabber under the effect of locate key, the height of all silicon steel sheets of folding on the base is not more than drawing the axial dimension of cavity, every tooth of silicon steel sheet is just right with a notch, the positive and every notch all aligns the positive center position of the tooth of silicon steel sheet, take out the cavity through the vacuum pump work to draw the cavity to take out the negative pressure to form in order to take out the tooth tip, the tooth portion has formed the silicon steel sheet and has spread in proper order peripheral edge, the yoke portion.
In some embodiments, the heights of all the silicon steel sheets stacked on the base, the axial dimension of the hollow cavity and the axial dimension of the channel are equal under the condition that the device is used for bonding the iron cores.
In some embodiments, the top of the mandrel is further provided with a first bolt hole, the first bolt hole is communicated with the hollow cavity, the device further comprises a stud bolt, a through hole is formed in the stud bolt, one end of the stud bolt is arranged in the first bolt hole, the other end of the stud bolt is connected with an air pipe, and the air pipe is communicated with the hollow cavity through the through hole.
In some embodiments, the centerline of the through hole of the stud mounted at the first bolt hole coincides with the axis of the undercut cavity.
In some embodiments, a second bolt hole is formed in the bottom of the mandrel, and the second bolt hole cooperates with a second bolt to realize the bolt connection of the mandrel and the base.
In some embodiments, the device comprises two locating keys, located on the outer periphery of the spindle at the very middle of two adjacent notches, the two locating keys being arranged 180 ° apart in the circumferential direction of the spindle.
A method for adhering an iron core by vacuum infiltration, which adopts the device, comprises the following steps: obtaining a cut silicon steel sheet; after the cut silicon steel sheet is obtained, the cut silicon steel sheet is orderly laminated on the base and outside the mandrel; after the silicon steel sheets are laminated, an upper pressing plate is covered and the silicon steel sheets are pressed; after the silicon steel sheet is pressed, the vacuum pump is started, glue is coated on the periphery of the silicon steel sheet, and vacuum glue infiltration is carried out under the action of the vacuum pump.
The beneficial effects of the application are as follows: the utility model provides a device of vacuum infiltration adhesive bonding iron core, including base, dabber, at least two locating keys and vacuum pump, the vacuum pump passes through the air pipe and the hollow chamber intercommunication of dabber, when being used for the iron core bonding, a plurality of silicon steel sheets of iron core are neatly laminated on the base and outside the dabber under the effect of locating keys, every tooth of silicon steel sheet corresponds with a notch, work through the vacuum pump, vacuumize the hollow chamber, the cavity has been drawn out and has been formed the negative pressure environment, the negative pressure environment acts on the silicon steel sheet through the notch of channel, in particular, it is all aimed at to inject every notch the right central position of the tooth of silicon steel sheet, consequently, the infiltration environment that every tooth is in to the silicon steel sheet is the die-bonding environment for glue that scribbles in silicon steel sheet outer peripheral department extends in proper order along yoke portion, tooth portion and tooth point, has realized effective infiltration adhesive, especially realized glue and evenly distributed between the silicon steel sheet, reached the effect to the accurate rubber coating of product, has still had the effect of improving production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention.
FIG. 1 is a front view of a device for vacuum infiltration bonding an iron core provided herein;
FIG. 2 is a side view of the apparatus for vacuum infiltration bonding of cores provided herein;
FIG. 3 is a schematic view of the structure of FIG. 1 with cover plates, upper platen and lower platen added;
FIG. 4 is a schematic diagram of a device for vacuum infiltration bonding an iron core and a vacuum pump provided by the application;
FIG. 5 is a schematic view of the channels and slots in the apparatus for vacuum infiltration bonding cores provided herein;
FIG. 6 is a schematic view of the arrangement of the channels and slots in the overall device of the vacuum infiltration adhesive core device provided in the present application;
FIG. 7 is a schematic view of a stud in the apparatus for vacuum infiltration bonding of cores provided herein;
FIG. 8 is a schematic view of a silicon steel sheet including teeth and yokes;
FIG. 9 is a schematic view of the notch aligned with the exact center of the tooth of the sheet of silicon steel in the apparatus for vacuum infiltration bonding of iron cores provided herein;
fig. 10 is a glue-pouring state usage diagram of the device for vacuum glue-penetrating the iron core.
The drawings are marked: 100-base, 200-core shaft, 210-cavity, 220-channel, 221-notch, 230-first bolt hole, 240-second bolt hole, 241-second bolt, 300-locating key, 400-stud, 410-through hole, 510-cover plate, 520-upper pressing plate, 530-lower pressing plate, 600-silicon steel sheet, 610-tooth part, 620-yoke part, 700-vacuum pump, 710-air pipe.
Detailed Description
Example 1
The embodiment provides a device for bonding an iron core by vacuum infiltration, which completes the infiltration bonding of a silicon steel sheet of the iron core under the action of vacuum negative pressure.
Referring to fig. 1, the device for vacuum infiltration bonding an iron core includes a base 100, a mandrel 200, and at least two positioning keys 300, wherein the base 100 is a base body, the mandrel 200 is a shaft member, and the positioning keys 300 are key bodies. The mandrel 200 is fixedly installed on the base 100, and a hollow cavity 210 is formed in the mandrel 200. The hollowed out cavity 210 may be provided at the very center of the mandrel 200. The positioning key 300 is located at the outer circumference of the spindle 200, and the positioning key 300 is disposed along the axial direction of the spindle 200.
Referring to fig. 1, 5 and 6 in combination, fig. 5 shows a schematic distribution of a plurality of channels 220, the mandrel 200 is provided with a plurality of channels 220 uniformly spaced along the circumferential direction, the channels 220 are arranged along the axial direction of the mandrel 200, the channels 220 are communicated with the hollow cavity 210, and the channels 220 form notches 221 at the outer edge of the mandrel 200. Referring to fig. 10, the channels 220 are disposed in a region between the upper and lower pressing plates 520 and 530 corresponding to the total thickness of the silicon steel sheets, ensuring the infiltration of the glue into each silicon steel sheet.
It should be noted that the mandrel itself is also present as a unitary member, which does not result in the mandrel being divided into discrete portions by the channels. In detail, referring to fig. 10, when the iron core is vacuum-bonded, the silicon steel sheet 600 is located at the region between the upper and lower pressing plates 520 and 530; referring to fig. 10 and fig. 3 in combination, and specifically referring to the height range of the upper platen 520, only the first bolt hole 230 is formed at the top of the mandrel 200, and the top is physically disposed except for the first bolt hole 230; similarly, referring specifically to the height range of the hold-down plate 530, the mandrel 200 has only a hollow cavity 210 at the bottom, and the bottom is substantially disposed in the region other than the hollow cavity 210. In this way, it is ensured that on the basis of the mandrel arrangement of the hollowed out cavity 210, the first bolt hole 230 and the plurality of channels 220, the arrangement is still in an integral form, without the possibility of falling apart.
Referring to fig. 1, a distribution area of the hollow cavity 210 and the first bolt hole 230 is shown, and a scheme that the aperture of the hollow cavity 210 is larger than that of the first bolt hole 230 is shown. It should be noted that, the first bolt hole 230 may also have an aperture greater than or equal to the aperture of the hollowed out cavity 210, and the two are not limited to the hollowed out cavity 210 having an aperture greater than the first bolt hole 230.
Referring to fig. 1, the bottom end of the hollow cavity 210 is located at the upper edge of the base 100, which is equivalent to the open bottom end of the hollow cavity 210 in the mandrel 200, and the open bottom end of the hollow cavity 210 is closed by the upper edge of the base 100.
Referring to fig. 4, the apparatus includes a vacuum pump 700, the vacuum pump 700 is disposed in an area outside the mandrel, the vacuum pump 700 is connected to the mandrel 200 through an air pipe 710, specifically, the vacuum pump 700 is communicated with the hollow cavity 210 through the air pipe 710, so that the vacuum pump 700 can smoothly act on the hollow cavity area.
Referring to fig. 1 and fig. 2 in combination, two positioning keys 300 are provided in the present device, and the positioning keys 300 are defined to be disposed along the axial direction of the mandrel 200, and referring to fig. 2, the length direction of the positioning keys 300 is identical to the axial direction of the mandrel 200. Referring to fig. 6 in combination, the positioning key 300 is located at the outer periphery of the mandrel 200, and in the specific operation process of the device, referring to fig. 6 and 9 in combination, a plurality of silicon steel sheets are stacked neatly by the positioning key 300, and the positioning key 300 extends into the inter-tooth area of the silicon steel sheets.
When the iron core is bonded, a plurality of silicon steel sheets of the iron core are neatly stacked on the base 100 under the action of the positioning key 300 and are stacked outside the mandrel 200, each tooth of the silicon steel sheets corresponds to one notch 221, and correspondingly, the notches 221 are uniformly spaced along the circumferential direction of the mandrel 200. In particular, each notch 221 is aligned with the very center of the tooth 610 of the sheet 600 of silicon steel during the particular operation of the present device. The notches are aligned with the very center of the teeth 610 of the sheet 600 to facilitate penetration of glue from the outside of the core from the yoke 620 and along the teeth 610 to the edges of the teeth. Wherein the number of notches 221 in the present device is equal to the number of teeth 610 of the sheet of silicon steel as shown in fig. 9.
In detail, after the vacuum pump 700 enters the working state, the hollow cavity 210 is vacuumized, a negative pressure environment is formed in the hollow cavity 210, negative pressure acts on each tooth of the silicon steel sheet through the notch 221, so that glue coated on the outer periphery of the silicon steel sheet extends along the silicon steel sheet, and as each notch 221 is aligned to the right center position of the tooth 610 of the silicon steel sheet 600, the glue regularly extends from the yoke part, the tooth part and the tooth tip in sequence, so that the glue coated on the surface of the iron core permeates into the iron core, and the purpose of effective glue permeation is achieved.
Referring to fig. 10, after the glue is applied to the outer circumference of the core, the glue is infiltrated from the outer side of the core through the yoke 620 and along the teeth 610 to the edges of the teeth 610 by vacuum suction.
Above, realized glue evenly distributed between the silicon steel sheet, solved the problem that lacks among the prior art to silicon steel sheet rubber coating homogeneity, realized carrying out accurate rubber coating to the product through this device, guaranteed the bonding strength of product, still have the effect of improvement intensity of labour and improvement production efficiency.
Referring to fig. 1, the present apparatus performs a hollowing process in a mandrel 200 to form a hollowing cavity 210. Referring to fig. 9 and 10 in combination, when the iron core is bonded, the silicon steel sheets of the iron core are laminated on the base 100, so as to limit the height of the laminated steel sheet, specifically, the axial dimension of the hollow cavity 210 is smaller than or equal to the axial dimension of the hollow cavity 210, and the axial dimension of the hollow cavity 210 in fig. 1 is the vertical dimension of the hollow cavity 210, so as to ensure that the vacuum infiltration is effectively performed on all the silicon steel sheets.
In some embodiments, referring to fig. 1 and 3, a first bolt hole 230 is further formed in the top of the mandrel 200, the first bolt hole 230 is in communication with the hollow cavity 210, and the device further includes a stud.
Referring to fig. 7, a through hole 410 is provided in the stud 400, and the stud 400 is mounted at the first bolt hole 230 shown in fig. 3. Specifically, referring to fig. 3, 4 and 7 in combination, one end of the stud 400 is mounted in the first bolt hole 230, the other end of the stud 400 is connected with the air pipe 710, one end of the air pipe 710 is communicated with the hollow cavity 210 through the through hole 410, and the other end of the air pipe 710 is connected with the vacuum pump 700, so that a negative pressure environment is realized in the hollow cavity 210 during operation of the vacuum pump 700.
Through the above stud 400, the effect of a quick connector is achieved, and the upper pressing plate and the cover plate are matched, so that the stacked silicon steel sheets are preliminarily pressed.
Specifically, referring to fig. 3 and 4 in combination, the silicon steel sheets are stacked neatly, a lower pressing plate 530 is disposed below the lowest layer of silicon steel sheets, an upper pressing plate 520 is disposed above the uppermost layer of silicon steel sheets, a cover plate 510 is further mounted on the upper pressing plate, the cover plate 510 is located right above the mandrel 200, the cover plate 510 is provided with holes just used for the stud 400 to pass through, the stud 400 cooperates with a nut to press the cover plate 510 downwards, and the cover plate 510 drives the upper pressing plate 520 to press downwards, so that a plurality of silicon steel sheets are pressed preliminarily. Under the action of the stud bolts, the cover plate 510, the upper press plate 520, the silicon steel sheet, and the lower press plate 530 are sequentially pressed.
Referring to fig. 1, 3 and 10 for the difference between the lower press plate 530 and the base 100, the base 100 and the mandrel 200 are fixedly connected through the second bolt hole 240 and the second bolt 241, and the base 100 and the mandrel 200 are integrated. While lower platen 530 is positioned above base 100 and beyond mandrel 200, lower platen 530 and base 100 together form a tunnel for the installation of a locating key, lower platen 530 is movably positioned on base 100, as shown in fig. 1, 3 and 4. Referring to fig. 10, the purpose of the lower pressing plate 530 is to provide a bearing position for the silicon steel sheet 600, and when the lower pressing plate 530 is arranged in a circular ring shape, the outer diameter of the lower pressing plate 530 is larger than the outer diameter of the silicon steel sheet 600.
The lower pressing plate 530 is preferably designed in a circular shape, and the lower pressing plate 530 may have other shapes such as a square frame shape.
In some embodiments, as shown in fig. 1, the center line of the through hole 410 of the stud 400 mounted at the first bolt hole 230 coincides with the axis of the hollowed out cavity 210.
In some embodiments, referring to fig. 1, a second bolt hole 240 is formed at the bottom of the mandrel 200, a threaded hole matched with the second bolt hole 240 is formed in the base 100, the threaded hole of the base 100 is opposite to the second bolt hole 240 of the mandrel 200, and the mandrel 200 is fixedly connected with the base 100 by matching with a second bolt 241.
Referring to fig. 1, the second bolt holes 240 are spaced apart from the hollow cavity 210 to ensure the normal operation of the hollow cavity 210.
The number of the positioning keys 300 is limited to at least two, including two and more. In some embodiments, referring to fig. 1 and 3, the device includes two positioning keys 300, the positioning keys 300 being located right in between two adjacent notches 221 on the outer periphery of the spindle 200, the two positioning keys 300 being arranged 180 ° apart in the circumferential direction of the spindle 200.
Example 2
The embodiment discloses a method for adhering an iron core by vacuum infiltration adhesive, which adopts the device for adhering the iron core by vacuum infiltration adhesive in the embodiment 1, and comprises the following steps:
firstly, a cut silicon steel sheet is obtained, the cut silicon steel sheet comprises a tooth part, a yoke part and a tooth tip structure as shown in fig. 8, the cut silicon steel sheet is orderly laminated on a base 100 and outside a mandrel 200 under the action of a positioning key 300, the height value of a stator and rotor iron core target is determined in advance, after the lamination height reaches the requirement, the requirement refers to a numerical value larger than the stator and rotor iron core target height value, and a pressing plate is covered and pressed on the silicon steel sheet. The manner of pressing the silicon steel sheet comprises that a cover plate 510 is additionally arranged on an upper pressing plate 520, the cover plate 510 is matched with a stud 400 to press the upper pressing plate 520 downwards, and the stacked silicon steel sheet 600 is initially pressed. After the fastened core height reaches the requirement, the requirement here is a value equal to the target height value of the stator and rotor core, the air pipe 710 is installed, and the switch of the vacuum pump 700 is turned on.
Then, the glue is uniformly and properly coated on the periphery of the silicon steel sheet, and 16 notches 221 uniformly formed along the circumference of the mandrel 200 are formed under the suction force of the vacuum pump, so that the glue is regularly and sequentially extended from the yoke part, the tooth part and the tooth tip.
After 10 seconds, the vacuum glue seepage is finished, and the glue is uniformly distributed between the silicon steel sheets, so that the accurate glue spreading of the product is achieved, and the bonding strength of the product is ensured.
By adopting the method for bonding the iron core by vacuum infiltration, the iron core is bonded by vacuum infiltration, and the glue is uniformly distributed between the silicon steel sheets, so that the effect of precisely gluing the product is achieved, the bonding strength of the product is ensured, and the method also has the effects of improving the labor intensity and the production efficiency.
The mode of firstly opening the vacuum pump and then coating the glue is adopted, and the problem that the glue overflows outwards can be effectively prevented.
It is not recommended to use a method of gluing before opening the vacuum pump, which results in the defect that glue overflows outwards after gluing and before opening the vacuum pump.
Example 3
To better illustrate the apparatus of example 1, which provides a parameter specific embodiment, the following operations are included for a product with an outer diameter of 87mm, an inner diameter of 40mm, 16 teeth, and a stack height of 55 mm.
A base 100 with the length of 95mm and the height of 15mm is manufactured, a cylinder with the diameter of 39.96mm and the height of 70mm is installed on the base 100 to serve as a mandrel 200, a cylinder cavity with the diameter of 25mm and the height of 55mm is hollowed out in the middle of the mandrel 200 to serve as a hollowed-out cavity 210, positioning keys 300 with the length of 9mm, the width of 1.2mm and the height of 70mm are respectively arranged on two sides of the mandrel 200, and the width of the positioning keys 300 is set according to the spacing of tooth tips of a product so as to facilitate positioning of the product, thereby improving the uniformity of lamination of the product.
The core 200 is uniformly provided with 16 grooves 220 with the width of 2mm and the height of 55mm along the circumferential direction, the grooves 220 form notches 221 on the outer periphery of the core 200, the notches 221 are aligned with the center of the teeth of the core, the grooves 220 are communicated with the hollow cavity 210, and the glue is regularly extended from the yoke part, the tooth part and the tooth tip by utilizing the suction force of a vacuum pump.
Two bolt holes with the diameter of 5mm and the height of 15mm are arranged at the lower end of the mandrel 200, and the mandrel 200 is fastened and connected with the base 100 through screws. A stud hole having a diameter of 20mm and a height of 15mm is provided at the upper end of the mandrel 200, and is fitted with a stud 400, and a through hole 410 having a diameter of 6mm and a length of 35mm is provided at the center of the stud 400. The stud 400 has a male screw on each side, one side of which is connected to the mandrel 200 and the other side of which is connected to a vacuum pump, so as to perform vacuum suction on the hollow cavity of the mandrel 200.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. A device for vacuum infiltration bonding of an iron core, the device comprising:
a base;
the mandrel is fixedly arranged on the base, a cavity is formed in the mandrel, the bottom end of the cavity is in an open arrangement, the bottom end of the cavity is sealed by the upper edge of the base facing the bottom end opening of the cavity, the mandrel is provided with a plurality of channels which are uniformly arranged at intervals along the circumferential direction, the channels are arranged along the axial direction of the mandrel, the channels are communicated with the cavity, and a notch is formed at the outer edge of the mandrel;
the positioning keys are arranged along the axial direction of the mandrel, and are fixed at the outer periphery of the mandrel;
the vacuum pump is communicated with the hollow cavity of the mandrel through an air pipe; under the condition that the device is used for bonding the iron core, a plurality of silicon steel sheets of the iron core are orderly stacked on the base and outside the mandrel under the action of the positioning key, the heights of all the silicon steel sheets stacked on the base are not larger than the axial size of the cavity, each tooth of the silicon steel sheets is opposite to one notch, each notch is aligned to the right center position of the tooth of the silicon steel sheet, and the cavity is vacuumized through the vacuum pump so as to form a negative pressure environment, so that glue coated on the outer periphery of the silicon steel sheets sequentially extends along the yoke part, the tooth part and the tooth tip of the silicon steel sheets.
2. The apparatus for vacuum infiltration bonding an iron core according to claim 1, wherein the heights of all the silicon steel sheets laminated on the base, the axial dimensions of the hollowed-out cavity and the axial dimensions of the channel are equal under the condition that the apparatus is used for bonding the iron core.
3. The apparatus for vacuum infiltration adhesive bonding of iron cores according to claim 1, wherein the top of the mandrel is further provided with a first bolt hole, the first bolt hole is communicated with the hollow cavity, the apparatus further comprises a stud bolt, a through hole is arranged in the stud bolt, one end of the stud bolt is installed in the first bolt hole, the other end of the stud bolt is connected with the air pipe, and the air pipe is communicated with the hollow cavity through the through hole.
4. A device for vacuum-permeable adhesive bonding an iron core according to claim 3, wherein the center line of the through hole of the stud bolt installed at the first bolt hole coincides with the axis of the hollowed out cavity.
5. The apparatus for vacuum-permeable adhesive bonding of an iron core according to claim 1, wherein a second bolt hole is formed in the bottom of the mandrel, and the second bolt hole is matched with a second bolt to realize the bolt connection of the mandrel and the base.
6. A device for vacuum-permeable adhesive bonding of iron cores according to claim 1, characterized in that it comprises two said positioning keys, located on the outer periphery of said mandrel in the middle of two adjacent said notches, two said positioning keys being arranged 180 ° apart in the circumferential direction of said mandrel.
7. A method of vacuum-infiltration bonding an iron core, characterized in that a device for vacuum-infiltration bonding an iron core according to any one of claims 1 to 6 is used, the method comprising:
obtaining a cut silicon steel sheet;
after the cut silicon steel sheet is obtained, the cut silicon steel sheet is orderly stacked on the base and outside the mandrel;
after the silicon steel sheets are laminated, an upper pressing plate is covered and the silicon steel sheets are pressed;
after the silicon steel sheet is compressed, the vacuum pump is started, glue is coated on the periphery of the silicon steel sheet, and vacuum glue infiltration is carried out under the action of the vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311380338.XA CN117394620B (en) | 2023-10-24 | 2023-10-24 | Device and method for bonding iron core through vacuum infiltration adhesive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311380338.XA CN117394620B (en) | 2023-10-24 | 2023-10-24 | Device and method for bonding iron core through vacuum infiltration adhesive |
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| Publication Number | Publication Date |
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| CN117394620A true CN117394620A (en) | 2024-01-12 |
| CN117394620B CN117394620B (en) | 2024-04-16 |
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| CN202311380338.XA Active CN117394620B (en) | 2023-10-24 | 2023-10-24 | Device and method for bonding iron core through vacuum infiltration adhesive |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117713465A (en) * | 2024-02-05 | 2024-03-15 | 天蔚蓝电驱动科技(江苏)有限公司 | Iron core manufacturing method and iron core |
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| CN208299653U (en) * | 2018-06-25 | 2018-12-28 | 东莞市博瓦特动力科技有限公司 | A kind of motor stator glue-pouring device |
| CN210157059U (en) * | 2019-08-08 | 2020-03-17 | 苏州索尔达动力科技有限公司 | Vacuum encapsulating tool for stator of permanent magnet synchronous motor for new energy vehicle |
| CN217911305U (en) * | 2022-07-29 | 2022-11-29 | 上海克兰密封件有限公司 | Sealing ring vacuumizing glue permeation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208299653U (en) * | 2018-06-25 | 2018-12-28 | 东莞市博瓦特动力科技有限公司 | A kind of motor stator glue-pouring device |
| CN210157059U (en) * | 2019-08-08 | 2020-03-17 | 苏州索尔达动力科技有限公司 | Vacuum encapsulating tool for stator of permanent magnet synchronous motor for new energy vehicle |
| CN217911305U (en) * | 2022-07-29 | 2022-11-29 | 上海克兰密封件有限公司 | Sealing ring vacuumizing glue permeation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117713465A (en) * | 2024-02-05 | 2024-03-15 | 天蔚蓝电驱动科技(江苏)有限公司 | Iron core manufacturing method and iron core |
| CN117713465B (en) * | 2024-02-05 | 2024-05-03 | 天蔚蓝电驱动科技(江苏)有限公司 | Iron core manufacturing method and iron core |
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|---|---|
| CN117394620B (en) | 2024-04-16 |
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