CN114884292B

CN114884292B - Motor viscose core manufacturing device and manufacturing method thereof

Info

Publication number: CN114884292B
Application number: CN202210792833.0A
Authority: CN
Inventors: 周茂伟; 蒋宁; 黄秀东; 邹春华; 钟丽祝; 石伟磊
Original assignee: Ningbo Zhenyu Technology Co Ltd
Current assignee: Suzhou Find Stamping Machinery Technology Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-01
Anticipated expiration: 2042-07-07
Also published as: CN114884292A

Abstract

The invention discloses a manufacturing device and a manufacturing method of a motor viscose iron core, which comprises a continuous blanking die, wherein the continuous blanking die comprises at least one blanking station and a glue spraying mechanism positioned in front of the at least one blanking station; spout gluey mechanism including the holding chamber that is arranged in the lower mould, be arranged in the holding chamber take out the board cushion, and be located the gluey module of spouting of holding chamber oral area, it is fixed in on taking out the board cushion to spout gluey module, it is formed with a plurality of glue annular district to spout in the gluey module, each spouts gluey annular district and all is formed with the nozzle that a plurality of annular array set up, and the transmission path who docks with each nozzle respectively, be formed with the cavity on taking out the board cushion, install reposition of redundant personnel module in the cavity, and utilize the motor viscose iron core manufacturing installation of above-mentioned embodiment to make rotor core and stator core, in order to promote production efficiency, and the iron core quality after the production.

Description

Motor viscose core manufacturing device and manufacturing method thereof

Technical Field

The invention relates to the technical field of iron core manufacturing in a motor for a new energy automobile, in particular to a motor viscose iron core manufacturing device and a manufacturing method thereof.

Background

At normal temperature (10 ℃ to 40 ℃) of viscose iron cores appearing on the market, especially viscose iron cores of new energy automobile driving motors still need to be heated or used for assisting in heating inside or outside a die, and all blanked and formed thin plates are cured and bonded together to form a fixed iron core (namely a stator of the motor) or a movable iron core (namely a rotor of the motor); however, no matter the mode of heating-assisted curing outside the mold or heating-assisted curing inside the mold is adopted, high-temperature heating is adopted, but the high-temperature heating needs a period of aging to realize complete curing, and the curing time required by the mode is 3-5 minutes, so that the production efficiency is extremely low, and particularly, the method for manufacturing the iron core by the motor punching sheet disclosed in patent document CN108233643A can be used; and the glue amount of the nozzle blowout every time can not be controlled, so that the glue blowout amount every time is inconsistent, the glue thickness among the iron chip is inconsistent, the manufactured and formed iron core cannot meet the requirement on the working performance, defective products are produced more, the material waste is caused, the enterprise benefit is seriously influenced, and the vigorous popularization of the glue iron core on the new energy automobile motor is also seriously restricted.

Disclosure of Invention

In order to solve at least one technical defect, the invention provides the following technical scheme:

the device for manufacturing the motor viscose iron core comprises a continuous blanking die, wherein the continuous blanking die comprises at least one blanking station and a glue spraying mechanism positioned in front of the at least one blanking station; spout gluey mechanism including the holding chamber that is arranged in the lower mould, be arranged in the holding chamber take out the board cushion, and be located the gluey module of spouting of holding chamber oral area, it is fixed in on taking out the board cushion to spout gluey module, it has a plurality of glue annular district that spout to be formed with on the gluey module, each spouts gluey annular district and all is formed with the nozzle that a plurality of annular array set up, and the transmission channel who docks with each nozzle respectively, be formed with the cavity on taking out the board cushion, install reposition of redundant personnel module in the cavity, reposition of redundant personnel module includes the flow distribution plate that the polylith piled up the setting each other, each flow distribution plate is all including a plurality of play gluey passageways and one of formation on the side of week and advance gluey passageway, and be located inside reposition of redundant personnel chamber, a plurality of play gluey passageways and one advance gluey passageway and all with reposition of redundant personnel chamber intercommunication, a plurality of play gluey passageways on each flow distribution plate dock with every transmission channel through the pipeline respectively.

According to above motor viscose iron core manufacturing installation, the nozzle includes the glue storage channel that docks with transmission channel, forms in the circular cone passageway that stores up the glue passageway upper end, forms in the gluey passageway of spouting of circular cone passageway upper end and forms in the glue storage groove that spouts the glue passageway upper end.

The included angle between two opposite bevel edges on the conical channel is a, and the a is 13 degrees or 90 degrees.

The diameter of the upper port of the conical channel is smaller than that of the lower port of the conical channel, the diameter of the lower port of the conical channel is equal to that of the glue storage channel, and the diameter of the glue spraying channel is equal to that of the upper port of the conical channel.

The depth of the glue spraying channel is H1, the diameter of the glue spraying channel is D1, and H1 is less than 2 multiplied by D1.

According to above motor viscose iron core manufacturing installation, still include controller, packing element and glue controlgear, the gas relief pressure valve in the controller passes through the gas circuit pipe and docks with the inlet port of packing element, the glue controlgear links to each other and receives its control with the control module in the controller, the discharge port of packing element passes through the butt joint of the mouth that advances of pipeline with the glue controlgear, the mouth that goes out of glue controlgear is respectively through the butt joint of the passageway that advances of pipeline with each flow distribution plate.

According to the manufacturing device of the motor viscose iron core, the glue spraying module comprises an inlaying ring, a nozzle base plate, a nozzle plate and a mandrel pressing plate, a plurality of glue spraying annular areas are formed on the nozzle plate, the nozzle base plate, the nozzle plate and the mandrel pressing plate are all located in an inner hole of the inlaying ring, the inlaying ring is fixed on the nozzle base plate, and a convex ring is formed on the inner wall of the inlaying ring; the nozzle plate is overlapped on the nozzle base plate and fixed with the nozzle base plate; and the convex ring is embedded into the annular groove of the nozzle plate and is matched with the drawing plate cushion block to clamp and fix the fixed nozzle plate and the nozzle cushion plate, the mandrel pressing plate is embedded into an installation channel which is coaxially formed by an inner hole of the fixed nozzle plate and an inner hole of the nozzle cushion plate, and the nozzle cushion plate is provided with a plurality of transmission channels which are correspondingly communicated with the nozzle.

According to the motor viscose core manufacturing device, the inner wall of the accommodating cavity is provided with the channel, the draw plate is arranged between the draw plate cushion block and the bottom surface of the accommodating cavity, the bottom surface of the draw plate cushion block and the top surface of the draw plate form a plurality of matching tooth blocks through a plurality of matching grooves which are arranged at equal intervals, and the matching tooth blocks are correspondingly inserted into the matching grooves; the side wall of the first matching groove on the pumping plate cushion block and the side wall of the first matching groove on the pumping plate are mutually attached, and the two mutually attached side walls are inclined planes with consistent inclination angles; the extending section of the drawing plate penetrates through the channel and then is connected with the cylinder positioned on the side wall of the lower die.

According to the motor viscose core manufacturing device, the inlaying ring is fixed with the top surface of the drawing plate cushion block through the inlaying ring cushion plate, and the inlaying ring cushion plate is cushioned on the bottom surface of the nozzle.

As another aspect, a method for manufacturing a motor adhesive core includes manufacturing a rotor core and a stator core by using the above apparatus for manufacturing a motor adhesive core, and includes the following steps:

s1, conveying the material belt to a blanking direction in a continuous stepping mode, and spraying liquid for catalyzing glue on at least one of the upper surface or the lower surface of the material belt before the material belt enters a position between an upper die and a lower die of a continuous blanking die;

s2, the material belt is conveyed to the blanking direction in a continuous stepping mode between an upper die and a lower die of a continuous blanking die, and a plurality of rows of blanking forming areas of the material belt are synchronously blanked so as to form a rotor shaft hole with a notch, a plurality of vent holes and a plurality of rotor magnetic steel grooves surrounding the rotor shaft hole, and a plurality of stator square grooves which are positioned at the periphery of the plurality of rotor magnetic steel grooves and are arranged in an annular array, wherein the rotor magnetic steel grooves are positioned at the periphery of a through hole, and a rotor iron chip pre-forming area is further defined and formed by the periphery of the rotor magnetic steel grooves;

s3, in the continuous step-by-step conveying process of the material belt, a rotor iron chip pre-forming area is attached to a glue spraying mechanism which is positioned in front of a rotor blanking station in a continuous blanking die, glue in a glue cylinder is conveyed to a nozzle of the glue spraying mechanism through glue control equipment, the glue at the nozzle is adhered to the lower surface of the rotor iron chip pre-forming area, and glue points are uniformly distributed on the periphery of each rotor magnetic steel groove and the periphery of a rotor shaft hole respectively;

s4, in the continuous step-by-step conveying process of the material belt, blanking the preformed area of the rotor iron chip sprayed with the glue dots to form the rotor iron chip, and blanking the rotor iron chip into a blanking channel to be contacted with the top surface of the laminated stack of the rotor iron chip in the blanking channel through glue and liquid to be cured, adhered and fixed at normal temperature to form a rotor iron core;

step S5, in the continuous stepping conveying process of the material belt, blanking the periphery of the blanking hole to form a plurality of groove-shaped holes arranged in an annular array, wherein a long hole is formed at one end, close to the blanking hole, of each groove-shaped hole;

s6, in the continuous step-by-step conveying process of the material belt, blanking the edge of a blanking hole to form a stator shaft hole, removing a part of a long hole to enable a groove-shaped hole to be communicated with the blanking hole to form a stator groove shape, and defining a stator iron chip pre-forming area through the periphery of a stator square groove;

s7, in the continuous step-by-step conveying process of the material belt, a stator iron chip pre-forming area is attached to a glue spraying mechanism which is positioned in front of a stator blanking station in a continuous blanking die, glue in a glue cylinder is conveyed to a nozzle of the glue spraying mechanism through glue control equipment, the glue at the nozzle is adhered to the lower surface of the stator iron chip pre-forming area, and glue points are uniformly distributed among stator groove shapes and between the stator groove shapes and stator square grooves respectively;

and S8, before the stator core sheets are blanked, the stator core sheet lamination group in the blanking channel is rotated for 360 degrees/N, then in the continuous stepping conveying process of the material belt, the stator core sheet preforming area sprayed with glue points is blanked to form the stator core sheets with the outer shape gaps, and the stator core sheets are blanked into the blanking channel and contacted with liquid through the glue to be solidified, adhered and fixed at normal temperature between the stator core sheet lamination group and the top surface of the stator core sheet lamination group so as to form the stator core.

The method for manufacturing the viscose core of the motor is characterized in that in the step S2:

step S21, in the continuous step-by-step conveying process of the material belt, punching and forming two notch forming holes I which are symmetrically arranged, a plurality of notch forming holes II which surround the first notch forming holes and are arranged in an annular array mode, and a plurality of stator square grooves which surround the notch forming holes II and are arranged in an annular array mode on one side of a longitudinal center line at the center position of a forming area;

step S22, in the continuous step-by-step conveying process of the material belt, punching and forming a third notch forming hole on the other side of the longitudinal center line at the central position of the forming area, and forming a plurality of vent holes arranged in an annular array in the peripheral area of the first notch forming hole and the third notch forming hole, wherein the two first notch forming holes and the three notch forming holes are distributed in an annular array;

step S23, in the continuous step-by-step conveying process of the material belt, a plurality of rotor magnetic steel grooves with notches are respectively formed according to the positions of the notch forming holes II, and stator square grooves are formed by punching between the stator square grooves, wherein two adjacent rotor magnetic steel grooves are obliquely arranged and are mutually symmetrical;

and S24, in the continuous step-by-step conveying process of the material belt, punching and forming the rotor shaft hole with the notch according to the central positions of the distribution of the notch forming hole I and the forming hole III.

According to the manufacturing method of the motor viscose iron core, a stator outline notch forming step is arranged between the step S5 and the step S6, a plurality of stator square grooves arranged by annular arrays define a square groove forming area, three notch forming areas arranged by the annular arrays are formed in the square groove forming area, two parallel stator square grooves are arranged in each notch forming area, and therefore three notch forming areas are punched to form a notch forming hole four, and stator iron chips with outline notches are formed by performing and punching according to stator iron chip preforming.

According to the above manufacturing method of the motor viscose core, the liquid is a mixed liquid formed by an accelerant and stamping oil.

Compared with the prior art, the device and the method for manufacturing the motor viscose iron core have the following beneficial effects that:

1. utilize the structural design of nozzle, and controller, packing element and glue controlgear mutually support and reach the nozzle and spout gluey glue yield each time and obtain controlling, and the spun glue yield each time is unanimous, thereby make and obtain suitable glue yield between each iron core piece, and glue yield is unanimous, make the motor core after the production shaping, accord with the working property requirement, and rotor core, stator core's the stack pressure coefficient preferred, form and position tolerance such as straightness that hangs down, plane degree, circularity all accords with production and working property requirement.

2. The glue is quickly cured in the die, so that the iron core is formed, and the iron core is high in production effect and firm and reliable in bonding.

3. The material can be punched with the thickness of less than 0.3mm, and the thinner the material is, the more obvious the bonding process is.

4. When one iron core is blanked, and a second iron core is punched, the cylinder pulls the pulling plate, so that the nozzle plate is forced to be 1mm to 2mm lower than the top surface of the lower die, even if residual glue is left on the nozzle plate, the residual glue cannot be adhered on the material belt, the material belt in the conveying process is kept clean, and if the residual glue is adhered on the material belt, the shape and position tolerances of perpendicularity, flatness, roundness and the like of the iron core formed by adhesion cannot meet the requirements, so that the iron core is scrapped.

Drawings

FIG. 1 is a schematic structural diagram of a manufacturing apparatus;

FIG. 2 is a schematic view (two) of the structure of the manufacturing apparatus;

FIG. 3 is a schematic view (I) of a lower mold structure with a glue spraying mechanism;

FIG. 4 is an enlarged view at A;

FIG. 5 is an enlarged view of the nozzle structure;

FIG. 6 is a schematic view of a diverter plate configuration;

FIG. 7 is a schematic view of a nozzle distribution structure;

FIG. 8 is a schematic view (II) of the structure of a lower mold with a glue spraying mechanism;

fig. 9 is a schematic view of the fabrication process of the viscose core.

In the figure:

the continuous blanking die comprises a continuous blanking die 1, an upper die 11, a lower die 12, an accommodating cavity 121, a glue spraying mechanism 13, a mandrel pressing plate 130, a plate drawing cushion block 131, a concave cavity 132, an embedding ring 133, a shunting module 134, a nozzle plate 135, a nozzle 136, a nozzle cushion plate 137, an embedding ring cushion plate 138, a support ring 139, an annular groove 13a, an annular protrusion 13b, an annular groove 13c, a convex ring 13d, a transmission channel 13e, a shunting plate 13f, a glue outlet channel 13g, a shunting cavity 13h, a glue storage channel 13i, a conical channel 13j, a glue spraying channel 13k, a glue storage groove 13m, a glue inlet channel 13n, a drawing plate 14, a glue spraying annular area 140, a matching tooth block 141, a matching groove 142, an inclined plane 143 and a cylinder 15;

the device comprises a controller 2, a rubber cylinder 3, glue control equipment 4 and an accelerator spraying station 5;

the material belt comprises a material belt 100, a blanking forming area 101, a forming station I102, a forming station II 103, a forming station III 104, a glue spraying station I105, a blanking station I106, a forming station IV 107, a forming station V108, a glue spraying station II 109, a blanking station II 110, a stator square groove 111, a notch forming hole I112, a notch forming hole II 113, a vent hole 114, a rotor magnetic steel groove 115, a rotor shaft hole 116, a glue point 117, a rotor iron core piece 118, a blanking hole 119, a slot hole 120, a long hole 122, a stator slot 123, a stator iron core piece 124 and a notch forming hole III 125.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example (b):

as shown in fig. 1 and fig. 2, the apparatus for manufacturing a motor-bonded adhesive core described in this embodiment includes a continuous blanking die 1 and an accelerator spraying station 5 located at a material-strip entrance end of the continuous blanking die 1, where the continuous blanking die 1 includes, in order, a first forming station 102 for forming a first notch forming hole 112, a second notch forming hole 113, and a stator square groove 111, a second forming station 103 for forming a vent hole 114 and a third notch forming hole 125, a third forming station 104 for forming a rotor magnet steel groove 115, a rotor shaft hole 116, and a re-formed stator square groove 111, a first glue spraying station 105 with a glue spraying mechanism 13, a first blanking station 106 for forming a rotor core 118, a fourth forming station 107 for forming a groove-shaped hole 120 and a long hole 122, a fifth forming station 108 for forming a stator groove-shaped hole and a stator shaft hole, a second glue spraying station 109 with a glue spraying mechanism 13, and a second blanking station 110 for forming a stator core 124, and the rotor core and the stator core are formed by using the above apparatus, and glue is applied before the iron core is blanked.

As shown in fig. 3-7, in the present embodiment, the glue spraying mechanism 13 includes a receiving cavity 121 located in the lower mold 12, a plate drawing pad block 131 located in the receiving cavity 121, and a glue spraying module located at an opening portion of the receiving cavity 121, the glue spraying module is fixed on the plate drawing pad block 131, a plurality of glue spraying annular regions 140 are formed on the glue spraying module, each glue spraying annular region is formed with a plurality of nozzles 136 arranged in an annular array, and a conveying channel 13e respectively butted with each nozzle 136, a cavity 132 is formed on the plate drawing pad block 131, a flow dividing module 134 is installed in the cavity 132, the flow dividing module 134 includes a plurality of flow dividing plates 13f stacked on each other, each flow dividing plate 13f includes a plurality of glue outlet channels 13g and a glue inlet channel 13n formed on a peripheral surface, and a flow dividing cavity 13h located inside, the plurality of glue outlet channels 13g and a glue inlet channel 13n are all communicated with the flow dividing cavity 13h, the plurality of glue outlet channels 13g and a glue inlet channel 13n on each flow dividing plate 13f are respectively communicated with each conveying channel 13e through a pipeline, wherein glue is sprayed out from the glue outlet channel 13g and uniformly distributed on the glue inlet 13h, and the glue conveying channel 13e, and glue is uniformly sprayed out from the glue outlet channel 13g to the glue outlet channel 13h, and then the glue conveying part is uniformly adhered to the glue conveying part, and the glue conveying channel 13h, and the glue is uniformly, and the glue is adhered to the glue conveying channel 13f, and the glue is uniformly, and the glue is adhered to the glue outlet channel 13h, and the glue outlet channel 13f, and the glue outlet channel 13h, and the glue is adhered to the glue outlet channel 13h, and the glue is uniformly.

Preferably, the nozzle 136 includes a glue storage channel 13i butted with the transfer channel 13e, a conical channel 13j formed at the upper end of the glue storage channel 13i, a glue spraying channel 13k formed at the upper end of the conical channel 13j, and a glue storage groove 13m formed at the upper end of the glue spraying channel 13 k; the included angle between two opposite bevel edges on the conical channel 13j is a, a is 13 degrees or 90 degrees, the angle is designed according to glue hydrodynamics, so that the glue spraying channel is contracted to play a role in pressurization, and the glue sprayed out of the glue spraying channel 13k is controlled to form a spherical shape, so that the height of the spherical glue is higher than that of the glue storage groove 13m, and the spherical glue is effectively contacted and adhered with the lower surface of the material belt; the diameter of the upper port of the conical channel 13j is smaller than that of the lower port of the conical channel 13j, the diameter of the lower port of the conical channel 13j is equal to that of the glue storage channel 13i, and the diameter of the glue spraying channel 13k is equal to that of the upper port of the conical channel 13 j; the depth of the glue spraying channel 13k is H1, the diameter of the glue spraying channel 13k is D1, and H1 is less than 2 multiplied by D1. The structure of the device enables the sprayed glue amount to be controlled more easily, and improves the production efficiency and the quality of products after production.

In this embodiment, the glue spraying device further includes a controller 2, a glue cylinder 3 and a glue control device 4, a gas pressure reducing valve in the controller 2 is in butt joint with an air inlet port of the glue cylinder 3 through an air passage pipe, the glue control device 4 is connected with and controlled by a control module in the controller 2, a discharge port of the glue cylinder 3 is in butt joint with an adhesive inlet of the glue control device 4 through a pipeline, adhesive outlets of the glue control device 4 are in butt joint with adhesive inlet channels 13n of the flow distribution plates 13f through pipelines, the control module adopts the controller 2, the gas pressure reducing valve adopts an electrical proportional pressure reducing valve, the controller 2 controls air inlet pressure of the electrical proportional pressure reducing valve and controls output of the glue control device 4 to a nozzle 136 according to a punching speed of a punching machine and an adhesive outlet amount set value, so that the adhesive spraying amount of glue each time is accurately and effectively controlled, wherein the glue control device adopts a screw pump.

In this embodiment, the glue spraying module includes an insert ring 133, a nozzle backing plate 137, a nozzle plate 135 and a mandrel platen 130, the nozzle plate 135 is formed with a plurality of glue spraying annular areas, each glue spraying annular area is formed with a plurality of nozzles 136 arranged in an annular array, the nozzle backing plate 137, the nozzle plate 135 and the mandrel platen 130 are all located in an inner hole of the insert ring 133, the insert ring 133 is fixed on the nozzle backing plate 137, and a convex ring 13d is formed on the inner wall of the insert ring 133; the nozzle plate 135 is stacked on the nozzle backing plate 137 and fixed to each other; and the convex ring 13d is embedded into the annular groove 13c of the nozzle plate 135, and cooperates with the drawing plate cushion block 131 to clamp and fix the fixed nozzle plate 135 and the nozzle cushion plate 137, the mandrel press plate 130 is embedded and fixed into a mounting channel coaxially formed by the inner hole of the nozzle plate 135 and the inner hole of the nozzle cushion plate 137, an annular bulge 13b is formed on the outer wall of the mandrel press plate 130, an annular groove 13a is formed on the inner hole of the nozzle plate 135, the annular bulge 13b is correspondingly embedded into the annular groove 13c for limiting, and the nozzle cushion plate 137 is provided with a plurality of transmission channels 13e correspondingly communicated with the nozzles 136, so that the structure is compact, the stability of the device is improved, an effective space is provided for the arrangement of the splitter plate 13f, wherein the number of the nozzles of the nozzle plate 135 can be arranged according to the required glue points.

Preferably, the insert ring 133 is fixed to the top surface of the pumping plate spacer block 131 by an insert ring spacer 138, and the insert ring spacer 138 is seated on the bottom surface of the nozzle 136, wherein the insert ring spacer 138, the insert ring 133 and the pumping plate spacer block 131 are fixedly coupled by bolts.

In yet another alternative of the glue injection module, a support ring 139 may be disposed between the insert ring backing plate 138 and the mandrel platen 130 to make the mandrel platen 130 more stable, as shown in fig. 8.

In this embodiment, a pulling plate 14 is disposed between the pulling plate cushion block 131 and the bottom surface of the accommodating cavity 121, the bottom surface of the pulling plate cushion block 131 and the top surface of the pulling plate 14 form a plurality of engaging tooth blocks 141 through a plurality of engaging grooves 142 that are disposed at equal intervals, and the engaging tooth blocks 141 are correspondingly inserted into the engaging grooves 142; one side wall of the matching groove 142 on the drawplate cushion block 131 and one side wall of the matching groove 142 on the drawplate 14 are mutually attached, and the two mutually attached side walls are inclined surfaces 143 with consistent inclination angles; the extending section of the drawing plate 14 penetrates through the channel and then is connected with the cylinder 15 positioned on the side wall of the lower die 12, when one iron core is punched, and a second iron core is punched, the cylinder 15 draws the drawing plate 14, so that the nozzle plate 135 is forced to be lower than the top surface of the lower die 12 by 1mm to 2mm, even if residual glue is left on the nozzle plate 135, the residual glue cannot be adhered to a material belt, and a material belt in a conveying process is kept clean.

In another embodiment, as shown in fig. 9, the manufacturing apparatus for a motor viscose core according to the above embodiment is used to manufacture a rotor core and a stator core, and the manufacturing method of the motor viscose core includes the following steps:

step S1, the material belt 100 is conveyed towards the blanking direction in a continuous stepping mode, and at least one of the upper surface or the lower surface of the material belt 100 is sprayed with liquid for catalyzing glue before entering between an upper die 11 and a lower die 12 of a continuous blanking die 1; the liquid can be an accelerant and can be independently sprayed out as a preparation for catalyzing glue, or the liquid is a mixed liquid formed by mixing the accelerant and the stamping oil and sprayed out as a preparation for catalyzing glue, so that the glue is in contact with the mixed liquid to generate a quick reaction, and the aim of quick bonding at normal temperature is fulfilled.

Step S2, the material belt 100 is conveyed to the blanking direction in a continuous stepping mode between the upper die 11 and the lower die 12 of the continuous blanking die 1, and two or more blanking forming areas 101 of the material belt 100 are synchronously blanked, so that a rotor shaft hole 116 with a notch, a plurality of vent holes 114 and a plurality of rotor magnetic steel grooves 115 surrounding the rotor shaft hole 116, and a plurality of stator square grooves 111 which are positioned at the periphery of the plurality of rotor magnetic steel grooves 115 and are arranged in an annular array are formed in each forming area, the rotor magnetic steel grooves 115 are positioned at the periphery of a through hole, and a rotor iron chip pre-forming area is formed by defining the periphery of the rotor magnetic steel grooves 115; the method includes the steps of preparing the rotor core sheet 118 for blanking.

Step S3, in the continuous step-by-step conveying process of the material belt 100, a rotor iron chip pre-forming area is attached to a glue spraying mechanism 13 which is positioned in front of a rotor blanking station in a continuous blanking die 1, glue in a glue cylinder 3 is conveyed to a nozzle 136 of the glue spraying mechanism 13 through a glue control device 4, the glue at the nozzle 136 is adhered to the lower surface of the rotor iron chip pre-forming area, and glue points 117 are uniformly distributed on the periphery of each rotor magnetic steel groove 115 and the periphery of a rotor shaft hole 116 respectively; the position of the nozzle 136 in the glue spraying mechanism 13 is set according to the shape of the rotor core sheet 118, and the nozzle 136 is arranged at the position corresponding to the periphery of the rotor magnetic steel groove 115 and the periphery of the rotor shaft hole 116, so as to achieve effective coating of the glue, and enable the glue to be in effective contact with the accelerator.

And S4, in the continuous stepping conveying process of the material belt 100, blanking the rotor iron chip pre-forming area sprayed with the glue dots 117 to form rotor iron chips 118, blanking the rotor iron chips into the blanking channel, contacting the blanking channel with the top surfaces of the rotor iron chip lamination groups inside the blanking channel through glue and liquid, solidifying, bonding and fixing at normal temperature to form rotor iron cores, supporting hydraulic cylinders for supporting the lower end surfaces of the rotor iron chip lamination groups of the blanking channel, and controlling the supporting hydraulic cylinders to descend by the thickness of one rotor iron chip 118 by each punched rotor patch so as to facilitate lamination bonding of the iron chips formed by next blanking.

Step S5, in the continuous step-by-step conveying process of the material belt 100, blanking the periphery of the blanking hole 119 to form a plurality of groove-shaped holes 120 arranged in an annular array, wherein one end of each groove-shaped hole 120 close to the blanking hole 119 is provided with a long hole 122; the forming of the step is a preliminary preparation for the forming of the stator slot 123, avoiding deformation due to direct forming.

Step S6, in the continuous step-by-step conveying process of the material belt 100, the edge of the blanking hole 119 is blanked to form a stator shaft hole, a part of the long hole 122 is removed, the groove-shaped hole 120 is communicated with the blanking hole 119 to form a stator groove shape 123, and a stator iron chip pre-forming area is defined and formed through the periphery of the stator square groove 111; through the combination of the step S5 and the step S6, the stator groove 123 formed by blanking is prevented from deforming, the quality of the stator iron core piece 124 is effectively guaranteed, and the production efficiency and the quality are improved.

Step S7, in the continuous step-by-step conveying process of the material belt 100, a stator iron chip pre-forming area is attached to a glue spraying mechanism 13 which is positioned in front of a stator blanking station in a continuous blanking die 1, glue in a glue cylinder 3 is conveyed to a nozzle 136 of the glue spraying mechanism 13 through a glue control device 4, the glue at the nozzle 136 is made to adhere to the lower surface of the stator iron chip pre-forming area, and glue points 117 are uniformly distributed among the stator grooves 123 and between the stator grooves 123 and the stator square grooves 111 respectively; the position of the nozzle 136 in the glue spraying mechanism 13 is set according to the shape of the stator core sheet, and the nozzles 136 are arranged at the positions corresponding to the positions between the stator slots 123 and the stator square slots 111, so as to achieve effective coating of the glue, and enable the glue to be in effective contact with the accelerator.

Step S8, before the stator core sheet 124 is blanked, the stator core sheet lamination group in the blanking channel is rotated for 360 degrees/N, wherein the N coefficient is 18, so that the actual rotation angle is 20 degrees, then in the continuous stepping conveying process of the material strip 100, the stator core sheet preformed area sprayed with the glue points 117 is blanked to form the stator core sheet 124 with an outer shape gap, and the stator core sheet 124 is blanked to the position in the blanking channel and the top surface of the stator core sheet lamination group to be contacted with liquid through glue and cured, adhered and fixed at normal temperature so as to form a stator core; and a supporting hydraulic cylinder support is arranged on the lower end face of the stator iron chip lamination group of the blanking channel, and each blanking piece of rotor patch controls the supporting hydraulic cylinder to descend by the thickness of one stator iron chip 124, so that the iron chips formed by next blanking can be laminated and bonded conveniently.

Preferably, in step S2: step S21, in the continuous step-by-step conveying process of the material tape 100, two notch forming holes 112 symmetrically arranged on the left side of the longitudinal center line at the center position of the forming area, a plurality of notch forming holes 113 arranged in an annular array around the first notch forming hole, and a plurality of stator square grooves 111 arranged in an annular array around the plurality of notch forming holes 113 are formed in a punching manner.

Step S22, in the continuous step-by-step conveying process of the material tape 100, the third notch forming hole 125 is blanked and formed on the right side of the longitudinal center line at the central position of the forming area, and a plurality of vent holes 114 arranged in an annular array are formed in the peripheral areas of the first notch forming hole 112 and the third notch forming hole 125, and the two first notch forming holes 112 and the third notch forming holes are distributed in an annular array.

Step S23, in the continuous step-by-step conveying process of the material tape 100, a plurality of rotor magnetic steel grooves 115 with notches are respectively formed according to the positions of the second notch forming holes 113, and the stator square grooves 111 are formed by punching between the stator square grooves 111, wherein two adjacent rotor magnetic steel grooves 115 are obliquely arranged and are symmetrical to each other.

Step S24, in the continuous step-by-step conveying process of the material tape 100, the rotor shaft hole 116 with the notch is blanked and formed at the central position where the notch forming hole one 112 and the forming hole three are distributed.

The steps enable the stator square groove 111, the rotor magnetic steel groove 115 with the notch, the rotor shaft hole 116 with the notch and the vent hole 114 to be effectively molded, deformation in the molding process is avoided, the step of specially designing and forming the notch is omitted, and production efficiency is improved.

According to the manufacturing method of the motor viscose core, a stator outline notch hole forming step is arranged between the step S5 and the step S6, a plurality of stator square grooves 111 arranged in an annular array define a square groove forming area, three notch forming areas arranged in an annular array are formed in the square groove forming area, two parallel stator square grooves 111 are arranged in each notch forming area, so that the three notch forming areas are punched to form a notch forming hole IV, then the stator iron core piece 124 with the outline notch is formed by performing and punching according to the stator iron core piece 124, a performing mode is adopted, the stator iron core piece 124 with the outline notch is effectively formed, deformation is avoided, a step of specially removing the outline notch is omitted, and production efficiency is improved.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A motor viscose core manufacturing device comprises a continuous blanking die (1), and is characterized in that the continuous blanking die (1) comprises at least one blanking station and a glue spraying mechanism (13) positioned in front of the at least one blanking station;

the glue spraying mechanisms (13) respectively comprise a containing cavity (121) positioned in the lower die (12), a plate drawing cushion block (131) positioned in the containing cavity (121), and a glue spraying module positioned at the mouth part of the containing cavity (121), the glue spraying module is fixed on the plate drawing cushion block (131), a plurality of glue spraying annular areas (140) are formed on the glue spraying module, a plurality of nozzles (136) arranged in an annular array are formed in each glue spraying annular area (140), and transmission channels (13 e) respectively butted with the nozzles (136), a concave cavity (132) is formed on the plate drawing cushion block (131), a distribution module (134) is installed in the concave cavity (132), the distribution module (134) comprises a plurality of distribution plates (13 f) which are mutually stacked, each distribution plate (13 f) comprises a plurality of glue outlet channels (13 g) and one glue inlet channel (13 n) which are formed on the peripheral side, and a distribution cavity (13 h) positioned in the inner part, the plurality of glue outlet channels (13 g) and one glue inlet channel (13 n) are respectively communicated with the distribution cavity (13 h), and a plurality of glue outlet channels (13 g) which are respectively communicated with the distribution channels (13 e) on each distribution plate (13 f);

the nozzle (136) comprises a glue storage channel (13 i) butted with the transmission channel (13 e), a conical channel (13 j) formed at the upper end of the glue storage channel (13 i), a glue spraying channel (13 k) formed at the upper end of the conical channel (13 j), and a glue storage groove (13 m) formed at the upper end of the glue spraying channel (13 k);

the included angle between two opposite bevel edges on the conical channel (13 j) is a, and the a is 13 degrees or 90 degrees;

the diameter of the upper port of the conical channel (13 j) is smaller than that of the lower port of the conical channel (13 j), the diameter of the lower port of the conical channel (13 j) is equal to that of the glue storage channel (13 i), and the diameter of the glue spraying channel (13 k) is equal to that of the upper port of the conical channel (13 j);

the depth of the glue spraying channel (13 k) is H1, the diameter of the glue spraying channel (13 k) is D1, and H1 is less than 2 multiplied by D1.

2. The manufacturing device of the motor viscose iron core according to claim 1, further comprising a controller (2), a glue cylinder (3) and a glue control device (4), wherein a gas pressure reducing valve in the controller (2) is in butt joint with an air inlet port of the glue cylinder (3) through an air passage pipe, the glue control device (4) is connected with a control module in the controller (2) and controlled by the control module, a discharge port of the glue cylinder (3) is in butt joint with a glue inlet of the glue control device (4) through a pipeline, and glue outlets of the glue control device (4) are in butt joint with glue inlet channels (13 n) of the splitter plates (13 f) through pipelines respectively.

3. The manufacturing device of the motor viscose core according to claim 2, wherein the glue spraying module comprises an insert ring (133), a nozzle cushion plate (137), a nozzle plate (135) and a mandrel pressing plate (130), a plurality of glue spraying annular areas (140) are formed on the nozzle plate (135), the nozzle cushion plate (137), the nozzle plate (135) and the mandrel pressing plate (130) are all located in an inner hole of the insert ring (133), the insert ring (133) is fixed on the nozzle cushion plate (137), and a convex ring (13 d) is formed on the inner wall of the insert ring (133); the nozzle plate (135) is overlapped on the nozzle backing plate (137) and fixed with each other; and the convex ring (13 d) is embedded into a ring groove (13 c) of the nozzle plate (135) and is matched with the drawing plate cushion block (131) to clamp and fix the fixed nozzle plate (135) and the nozzle cushion plate (137), the mandrel pressing plate (130) is embedded and fixed into an installation channel which is coaxially formed by an inner hole of the nozzle plate (135) and an inner hole of the nozzle cushion plate (137), and the nozzle cushion plate (137) is provided with a plurality of transmission channels (13 e) which are correspondingly communicated with the nozzles (136).

4. The manufacturing device of the motor viscose core according to claim 3, wherein a channel is formed on the inner wall of the accommodating cavity (121), a drawing plate (14) is arranged between the drawing plate cushion block (131) and the bottom surface of the accommodating cavity (121), a plurality of matching tooth blocks (141) are respectively formed on the bottom surface of the drawing plate cushion block (131) and the top surface of the drawing plate (14) through a plurality of matching grooves (142) which are arranged at equal intervals, and the matching tooth blocks (141) are correspondingly inserted into the matching grooves (142); one side wall of the matching groove (142) on the drawing plate cushion block (131) is mutually jointed with one side wall of the matching groove (142) on the drawing plate (14), and the two mutually jointed side walls are inclined planes (143) with consistent inclination angles; the extending section of the drawing plate (14) penetrates through the channel and then is connected with a cylinder (15) positioned on the side wall of the lower die (12).

5. The manufacturing device of the motor viscose core according to claim 3 or 4, wherein the insert ring (133) is fixed with the top surface of the drawing plate cushion block (131) through an insert ring cushion plate (138), and the insert ring cushion plate (138) is cushioned on the bottom surface of the nozzle (136).

6. A method for manufacturing a motor viscose core is characterized by comprising the following steps of manufacturing a rotor core and a stator core by using the motor viscose core manufacturing device of any one of claims 1 to 5:

s1, conveying a material belt (100) to a blanking direction in a continuous stepping mode, and spraying liquid for catalyzing glue on at least one of the upper surface or the lower surface of the material belt (100) before the material belt enters a position between an upper die (11) and a lower die (12) of a continuous blanking die (1);

s2, the material belt (100) is conveyed between an upper die (11) and a lower die (12) of a continuous blanking die (1) in a continuous stepping mode in the blanking direction, multiple rows of blanking forming areas (101) of the material belt (100) are synchronously blanked, a rotor shaft hole (116) with a notch is formed in each forming area, a plurality of vent holes (114) and a plurality of rotor magnetic steel grooves (115) surrounding the rotor shaft hole (116), and a plurality of stator square grooves (111) which are located on the periphery of the plurality of rotor magnetic steel grooves (115) and are arranged in an annular array mode, the rotor magnetic steel grooves (115) are located on the periphery of a through hole, and a rotor iron chip pre-forming area is formed through the periphery of the rotor magnetic steel grooves (115);

s3, in the continuous step-by-step conveying process of the material belt (100), a rotor iron chip pre-forming area is attached to a glue spraying mechanism (13) which is positioned in front of a rotor blanking station in a continuous blanking die (1), glue in a glue barrel (3) is conveyed to a nozzle (136) of the glue spraying mechanism (13) through glue control equipment (4), the glue at the nozzle (136) is adhered to the lower surface of the rotor iron chip pre-forming area, and glue points (117) are uniformly distributed on the periphery of each rotor magnetic steel groove (115) and the periphery of a rotor shaft hole (116) respectively;

s4, in the continuous step-by-step conveying process of the material belt (100), blanking the rotor iron chip pre-forming area coated with the glue dots (117) to form rotor iron chips (118), and blanking the rotor iron chips into a blanking channel to be in contact with the top surfaces of the rotor iron chip lamination groups inside the blanking channel through glue and liquid to be cured, adhered and fixed at normal temperature to form a rotor iron core;

s5, in the continuous step-by-step conveying process of the material belt (100), blanking the periphery of the blanking hole (119) to form a plurality of groove-shaped holes (120) arranged in an annular array, wherein one end, close to the blanking hole (119), of each groove-shaped hole (120) is provided with a long hole (122);

s6, in the continuous step-by-step conveying process of the material belt (100), the edge of a blanking hole (119) is blanked to form a stator shaft hole, a part of a long hole (122) is removed, a groove-shaped hole (120) is communicated with the blanking hole (119) to form a stator groove shape (123), and a stator iron chip pre-forming area is defined and formed through the periphery of a stator square groove (111);

s7, in the continuous step-by-step conveying process of the material belt (100), a stator iron chip pre-forming area is attached to a glue spraying mechanism (13) which is positioned in front of a stator blanking station in a continuous blanking die (1), glue in a glue barrel (3) is conveyed to a nozzle (136) of the glue spraying mechanism (13) through glue control equipment (4), the glue at the nozzle (136) is adhered to the lower surface of the stator iron chip pre-forming area, and glue points (117) are uniformly distributed among stator grooves (123) and between the stator grooves (123) and a stator square groove (111);

and S8, before the stator core (124) is blanked, the stator core lamination group in the blanking channel is rotated for 360 degrees/N, then in the continuous stepping conveying process of the material belt (100), the stator core preforming area sprayed with glue points (117) is blanked to form the stator core (124) with the outer shape gap, and the stator core is blanked into the blanking channel and is in contact with the top surface of the stator core lamination group through glue and liquid to be cured, adhered and fixed at normal temperature, so that a stator core is formed.

7. The method for manufacturing the motor viscose core according to claim 6, wherein in step S2:

step S21, in the continuous step-by-step conveying process of the material belt (100), punching and forming two notch forming holes I (112) which are symmetrically arranged on one side of a longitudinal center line at the center position of a forming area, a plurality of notch forming holes II (113) which surround the first notch forming holes and are arranged in an annular array, and a plurality of stator square grooves (111) which surround the notch forming holes II (113) and are arranged in an annular array;

step S22, in the continuous step-by-step conveying process of the material belt (100), a third notch forming hole (125) is formed in a punching mode on the other side of the longitudinal center line of the central position of the forming area, a plurality of vent holes (114) arranged in an annular array mode are formed in the peripheral area of the first notch forming hole (112) and the third notch forming hole (125), and the first notch forming hole (112) and the third notch forming hole are distributed in an annular array mode;

step S23, in the continuous step-by-step conveying process of the material belt (100), a plurality of rotor magnetic steel grooves (115) with notches are formed according to the positions of the second notch forming holes (113), and stator square grooves (111) are formed by punching between the stator square grooves (111), wherein two adjacent rotor magnetic steel grooves (115) are obliquely arranged and are mutually symmetrical;

and step S24, in the continuous step-by-step conveying process of the material belt (100), punching and forming a rotor shaft hole (116) with a notch according to the central positions of the first notch forming hole (112) and the third notch forming hole.

8. The manufacturing method of the motor viscose core according to claim 7, wherein a step of forming a stator outline notch forming hole is provided between step S5 and step S6, a square groove forming area is defined by a plurality of stator square grooves (111) arranged in an annular array, three notch forming areas arranged in an annular array are formed in the square groove forming area, and two parallel stator square grooves (111) are formed in each notch forming area, so that the three notch forming areas are punched to form a notch forming hole four, and then the stator iron core piece (124) with the outline notch is formed by performing punching according to the stator iron core piece (124).

9. The manufacturing method of the motor viscose core according to claim 7 or 8, wherein the liquid is a mixed liquid formed by an accelerator and punching oil.