CN113617920B - Motor stator punching processing method - Google Patents

Motor stator punching processing method Download PDF

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Publication number
CN113617920B
CN113617920B CN202110784592.0A CN202110784592A CN113617920B CN 113617920 B CN113617920 B CN 113617920B CN 202110784592 A CN202110784592 A CN 202110784592A CN 113617920 B CN113617920 B CN 113617920B
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China
Prior art keywords
arc
shaped
punch
raw materials
punching
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CN202110784592.0A
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Chinese (zh)
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CN113617920A (en
Inventor
吴小波
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Nantong Huda Machinery Equipment Co ltd
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Nantong Huda Machinery Equipment Co ltd
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Publication of CN113617920A publication Critical patent/CN113617920A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/22—Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • 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
    • H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention discloses a motor stator punching processing method, and relates to the technical field of motors. The processing method comprises the following steps: the raw materials are fed to the punching machine through the feeding mechanism after unreeling, so that the raw materials are prevented from being inclined and unstable during conveying and are prevented from being damaged; the method comprises the steps of conveying raw materials into a punch press, and driving a punching die to punch the raw materials through a punching assembly of the punch press to prepare a stator punching sheet; polishing the surface of the stator punching sheet, so that the quality of the stator punching sheet is improved; performing rust prevention treatment on the surface of the stator punching sheet; and checking the processed stator punching sheet through punching sheet detection equipment to ensure that the product is qualified. The invention has the advantages that: the raw materials are stable in conveying, the surfaces of the punched sheets are not polluted, and the breakage rate of products is low; the die is convenient to maintain and the maintenance cost is low; the processed stator punching sheet has firm structure, convenient lamination among the punching sheets and good heat dissipation effect.

Description

Motor stator punching processing method
Technical Field
The invention relates to the technical field of motors, in particular to a motor stator punching processing method.
Background
The motor is an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction, and the main function of the motor is to generate driving torque as a power source of an electric appliance or various machines. The motor stator consists of a stator core, a stator winding and a machine base, wherein the stator core is formed by overlapping and combining high magnetic conductive material punching sheets. The structure of the punching sheet directly influences the efficiency, service life, performance, assembly production efficiency and the like of the motor.
In the prior art, the stator punching sheet is directly processed through the punching machine, the processed stator punching sheet comprises a punching sheet body and a tooth part, columnar lamination protrusions or lamination grooves are formed in the punching sheet body and the tooth part, a plurality of stator punching sheets are laminated through the cooperation of the lamination protrusions and the lamination grooves, but the heat dissipation effect of the processed stator punching sheet processed after lamination is poor, such as a direct-drive motor punching sheet with the application number of CN202021064677.9, two ventilation holes distributed along the length direction of the winding teeth are formed in one end far away from the stator groove, so that the heat dissipation effect is improved, and the heat dissipation performance of the punching sheet body is still poor.
In addition, the lamination bulge of the stator punching sheet processed by the prior art is columnar, the occupied area of the lamination bulge on the widths of the punching sheet body and the tooth part is larger, and for a thinner stator punching sheet, the structural fastness of the stator punching sheet can be weakened, and the service life is influenced; the cylindrical stacking bulges are easy to rotate when stacked, and when one stacking bulge is aligned, other stacking bulges can not be aligned exactly, so that stacking is inconvenient; when in processing, raw materials have dirt and damage, the processed punching sheet surface is easy to be dirty, and the product breakage rate is high. The stator punching sheet processing method of the motor needs to be provided to process the stator punching sheet with good heat dissipation performance, firm structure and convenient stacking, reduce the breakage rate of products and improve the quality of the products.
Disclosure of Invention
The invention aims to solve the technical problems of poor heat dissipation performance, poor structural fastness, inconvenient stacking, dirty surface and high breakage rate of stator punching sheets processed in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows: the method comprises the following steps:
s1, unreeling selected raw materials meeting requirements;
s2, feeding the raw materials to a punching machine through a feeding mechanism after unreeling, wherein when the feeding mechanism conveys the raw materials, the raw materials are conveyed through an S-shaped feeding track, the raw materials are limited between two limiting rollers, skew instability is avoided when the raw materials are conveyed, when the raw materials fall to a photoelectric switch below the S-shaped feeding track, the photoelectric switch is disconnected, a controller connected with the photoelectric switch controls to reduce the feeding speed so as to prevent the raw materials from touching a lower baffle, the raw materials rise, the photoelectric switch above is closed, the photoelectric switch below is disconnected, the bottom of the raw materials is indicated to be positioned between the two photoelectric switches, if the two photoelectric switches are disconnected, and the raw materials touch a contact of a travel switch, the controller controls to improve the feeding speed so as to prevent the raw materials from touching an upper baffle and a lower baffle of the feeding track, and the raw materials are prevented from being damaged;
s3, conveying raw materials into a punching machine, wherein a punching die is arranged in the punching machine, the punching die is driven by a punching component of the punching machine to punch the raw materials, the raw materials are firstly punched by a punch head arranged on a first fixing seat, then conveyed to the lower part of a second fixing seat and punched by a punch head arranged on the second fixing seat, finally punched by a punch head arranged on a third fixing seat, triangular and arc lamination grooves can be formed by the triangular lamination groove punch head and the arc lamination groove punch head, the punched stator punching sheet is firm in structure, the arc lamination groove punch head of the punching die and the second heat dissipation hole punch head are integrally arranged, and meanwhile, the arc lamination grooves and the second heat dissipation holes are punched, so that the heat dissipation effect is enhanced, and the stator punching sheet is prepared;
s4, treating the surface of the stator punching sheet, deburring by using a deburring device, polishing the deburred stator punching sheet by using a polishing device, and improving the quality of the stator punching sheet;
s5, protecting the surface of the stator punching sheet, and spraying the surface of the punching sheet through paint spraying equipment to improve the rust prevention effect of the surface of the punching sheet;
s6, checking the processed stator punching sheet through a punching sheet detection device, ensuring that the product is qualified, wherein the processed stator punching sheet is provided with a triangular lamination groove at the middle part of the flange of the tooth part, and the arc lamination groove of the arc structure on the punching sheet body ensures the structural fastness of the thinner stator punching sheet, and the tooth part is provided with a heat dissipation hole, and the arc lamination groove is communicated with the arc hole to strengthen the heat dissipation effect of the stator punching sheet.
Further, in the step S2, the feeding mechanism includes a pulling roll, a mounting frame and a feeding track, the pulling roll pulls raw materials into the feeding track, the feeding track is mounted on the mounting frame, an inlet at one end of the feeding track is close to the pulling roll, an outlet is arranged at the other end of the feeding track, the feeding track includes an upper baffle and a lower baffle, the upper baffle and the lower baffle are in an S-shaped structure, and an S-shaped feeding track is formed in a space between the upper baffle and the lower baffle;
the upper baffle plate and the lower baffle plate respectively comprise an upper part and a lower part, the upper part and the lower part of the upper baffle plate are respectively in an arc-shaped structure, the upper part and the lower part of the lower baffle plate are respectively in an arc-shaped structure, the interval between the lower part of the upper baffle plate and the lower part of the lower baffle plate is larger than the interval between the upper part of the upper baffle plate and the upper part of the lower baffle plate;
an adjusting plate arranged on the mounting frame is arranged on one side, far away from the lower baffle, of the upper baffle, two symmetrical waist-shaped holes are formed in the adjusting plate, limiting rollers penetrate through the waist-shaped holes, and the limiting rollers penetrate through the upper baffle and the lower baffle to be arranged in a space where the upper portion and the lower portion of the upper baffle are separated;
a travel switch is arranged at the top of the lower part of the upper baffle, and a contact of the travel switch passes through a waist-shaped hole on the lower part of the upper baffle to enter the feeding track;
the outer side of keeping away from the lower baffle and the outer side of keeping away from the upper baffle of lower baffle are connected with the square sleeve pipe of several respectively, fixedly connected with several corresponding square dead lever on the mounting bracket, square sleeve pipe is located on the square dead lever and installs upper baffle, lower baffle fixedly.
Further, the middle parts between the upper baffle plate and the lower baffle plate are respectively connected through connecting plates, and the limiting rollers are arranged on two sides of the connecting plates.
Further, the entrance and the exit of the S-shaped track formed by the upper baffle and the lower baffle are respectively provided with a horn-shaped open structure.
Further, the both ends of mounting bracket are connected with the fixed plate that sets up perpendicularly with the mounting bracket respectively, the inboard below of fixed plate is installed a plurality of photoelectric switch from top to bottom.
Further, in the step S3, the sheet punching die includes a fixing base, a mounting base and a punch, the fixing base includes a first fixing base, a second fixing base and a third fixing base, the mounting base includes a first mounting base, a second mounting base and a third mounting base, the mounting base is provided with a punch, and the punch includes a first heat dissipation hole punch, a V-shaped groove punch, a welding hole punch, a triangular lamination groove punch, an arc lamination groove punch, a second heat dissipation hole punch and a sheet punching body punch;
the first mounting seat is of a rectangular structure, a plurality of mounting holes are formed in the first mounting seat, the first mounting seat is fixedly mounted with the first fixing seat through screws penetrating through the mounting holes, a plurality of first mounting seats are annularly and uniformly distributed on the first fixing seat, and a first radiating hole punch, a V-shaped groove punch and a welding hole punch are arranged on the first mounting seat;
the second mounting seat is of a rectangular structure, a plurality of mounting holes are formed in the second mounting seat, the second mounting seat passes through the mounting holes through screws to be fixedly mounted with the second fixing seat, a plurality of second mounting seats are annularly and uniformly distributed on the second fixing seat, a triangular overlapping concave groove punch, an arc overlapping concave groove punch and a second radiating hole punch are arranged on the second mounting seat, and the arc overlapping concave groove punch and the second radiating hole punch are integrally arranged;
the third mount pad is annular structure, is equipped with the several mounting hole on the third mount pad, and the third mount pad passes the mounting hole through the screw and is fixed with third fixing base installation, is equipped with punching body drift on the third mount pad.
Further, a splicing groove is formed in one side face of the first fixing seat and one side face of the second fixing seat, a splicing block is arranged on the other side face of the second fixing seat and the other side face of the third fixing seat, and the first fixing seat, the second fixing seat and the third fixing seat are connected in the splicing groove through the splicing block in an inserting mode and are fixed through bolts.
Further, the screws penetrating through the mounting holes of the first mounting seat, the second mounting seat and the third mounting seat are adjusting screws, the end parts of the screws are planes, and the end parts of the screws are protruded out of the bottoms of the first mounting seat, the second mounting seat and the third mounting seat.
Further, in the step S6, the processed stator punching sheet has the following structure: the novel heat dissipation device comprises a circular punching body, wherein the inner side of the punching body is uniformly connected with a plurality of teeth, one end of each tooth, which is far away from the punching body, is provided with a flange, the middle part of each tooth, which is far away from the flange at the end of the punching body, is provided with a triangular lamination groove, the triangular lamination groove is of an isosceles triangle structure, the top angle of the isosceles triangle structure points to the circle center of the punching body, and the teeth are provided with first heat dissipation holes;
the stamping body is provided with arc-shaped laminating grooves, the arc-shaped laminating grooves are of arc-shaped structures, the circle center of a circle where the arc-shaped structures are located coincides with the circle center of the stamping body, the middle parts of the arc-shaped structures, the middle parts of the tooth parts and the circle center of the stamping body are located on the same straight line, the arc-shaped laminating grooves are provided with a plurality of arc-shaped laminating grooves, and the plurality of arc-shaped laminating grooves are correspondingly arranged with the plurality of tooth parts;
two arc side surfaces, close to and far away from the tooth part, of the arc lamination concave groove are respectively connected with a second heat dissipation hole, and the second heat dissipation holes are communicated with the arc lamination concave groove;
the outside that tooth was kept away from to the punching body is equipped with the several welded joint, the welded joint is located between two adjacent tooth, the inboard that the punching body is close to tooth is equipped with the V type groove of several, the V type groove is located between two adjacent tooth, the welded joint staggers with the V type groove and sets up.
The invention has the advantages that: the raw materials for manufacturing the punching sheet are conveyed through the feeding mechanism, an S-shaped feeding track of the feeding mechanism is formed by the upper baffle and the lower baffle, the manufacturing is simpler, the installation is more convenient, the raw materials are limited between the two limiting rollers, the deflection instability of the raw materials during conveying is avoided, the product quality is improved, the raw materials can not touch the upper baffle when moving upwards, the lower baffle or the ground when moving downwards due to the arrangement of the travel switch box and the photoelectric switch, the raw materials are prevented from being damaged and the surface of the processed punching sheet is prevented from being polluted, the surface of the processed punching sheet is not polluted, and the breakage rate of the product is low;
the raw materials are formed by stamping through a die in a punch press, the die is formed by installing different punches on different installation seats and then installing the different installation seats, and once the punches are damaged, the installation seats corresponding to the punches are directly replaced, so that the die is convenient to maintain and low in maintenance cost;
the triangular lamination groove punch and the arc lamination groove punch can punch triangular and arc lamination grooves, the triangular lamination grooves occupy smaller space of the flanges, the bending radian of the arc lamination grooves is the same as that of the punching sheet body, the impact on the structural strength of the punching sheet body is small, the punched punching sheet is more firm in structure, and the welding ports of the punched punching sheet and the V-shaped grooves are staggered to be arranged on the outer side and the inner side of the punching sheet body, so that the structural firmness of the punching sheet body is ensured;
the punched triangular structure and the arc-shaped structure can not rotate during lamination, so that lamination of stator lamination sheets can be ensured, and lamination among the lamination sheets is convenient;
the arc lamination groove punch and the second heat dissipation hole punch are integrally arranged, so that the processing is more convenient, the arc lamination groove and the second heat dissipation hole can be punched simultaneously, and the punched first heat dissipation hole and second heat dissipation hole have better heat dissipation effect.
Drawings
FIG. 1 is a schematic diagram of a feeding mechanism according to the present invention;
FIG. 2 is an enlarged schematic view of the structure within the circle of FIG. 1;
FIG. 3 is a schematic structural view of an adjusting plate and a limiting roller of the feeding mechanism of the present invention;
FIG. 4 is a bottom view of the stamping die of the present invention;
FIG. 5 is a cross-sectional view of a stamping die of the present invention;
FIG. 6 is a schematic view of a first mounting base of the stamping die of the present invention;
FIG. 7 is a schematic view of a second mounting base of the stamping die of the present invention;
FIG. 8 is a schematic view of an electronic stator punching sheet processed by the processing method of the present invention;
fig. 9 is an enlarged schematic view of the structure within the circle in fig. 8.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and detailed description. The following examples will provide those skilled in the art with a more complete understanding of the present invention and are not intended to limit the invention to the embodiments described.
The specific implementation mode adopts the following technical scheme: the method comprises the following steps:
s1, unreeling the selected raw materials meeting the requirements.
S2, feeding the raw materials to a punch through a feeding mechanism after unreeling.
As shown in fig. 1, the feeding mechanism includes a pulling roll, a mounting frame 51 and a feeding rail 52, the pulling roll pulls the raw material 100 into the feeding rail 52, the feeding rail 52 is mounted on the mounting frame 51, an inlet at one end of the feeding rail 52 is close to the pulling roll, an outlet is arranged at the other end of the feeding rail 52, the feeding rail 52 includes an upper baffle 521 and a lower baffle 522, the upper baffle 521 and the lower baffle 522 are in an S-shaped structure, the space between the upper baffle 521 and the lower baffle 522 forms the S-shaped feeding rail 52, and an inlet and an outlet of the S-shaped rail 52 formed by the upper baffle 521 and the lower baffle 522 are respectively in a horn-shaped open structure, so that the raw material 100 can be conveniently input and output.
The upper baffle 521 and the lower baffle 522 respectively comprise an upper part and a lower part, the upper part and the lower part of the upper baffle 521 are respectively in arc structures, the upper part and the lower part of the lower baffle 522 are respectively in separation, the middle parts between the upper part and the lower part of the upper baffle 521 and the lower baffle 522 are respectively connected through the connecting plate 53, the upper baffle 521 and the lower baffle 522 are respectively in two arc structures, the S-shaped structure is simpler to manufacture, the installation is more convenient, and the connecting plate 53 strengthens the integral structures of the upper baffle 521 and the lower baffle 522.
The interval between the lower part of the upper baffle 521 and the lower part of the lower baffle 522 is large, so that the raw material 100 can rise and fall in the interval to change the position, the feeding speed is judged and adjusted through the change of the position, two ends of the mounting frame 51 are respectively connected with a fixing plate 511 which is perpendicular to the mounting frame 51, a plurality of photoelectric switches 512 are arranged below the inner side of the fixing plate 511 from top to bottom, two photoelectric switches 512 are arranged in the embodiment, when the raw material 100 falls to the photoelectric switch 512 below, the photoelectric switches 512 are opened, in order to prevent the raw material 100 from touching the lower baffle 522, a controller connected with the photoelectric switches 512 controls to reduce the feeding speed, the raw material 100 rises, the photoelectric switch 512 above is closed, the photoelectric switch 512 below is opened, the bottom of the raw material 100 is indicated to be positioned between the two photoelectric switches 512, and the controller and the photoelectric switch 512 are conventional technologies well known to those skilled in the art, and the specific structure and principle of the controller and the photoelectric switch 512 are not explained.
The travel switch 54 is installed on the top of the lower part of the upper baffle 521, the contact of the travel switch 54 passes through the waist-shaped hole on the lower part of the upper baffle 521 to the lower part of the feeding rail 52, the travel switch 54 is installed on the top of the lower part of the upper baffle 521 through the mounting plate, if both photoelectric switches 512 are opened and the raw material 100 touches the contact of the travel switch 54, in order to prevent the raw material 100 from touching the upper baffle 521 of the feeding rail 52, the controller controls to increase the feeding speed and the raw material 100 descends.
The side that the upper baffle 521 kept away from lower baffle 522 is equipped with the regulating plate 55 of installing on mounting bracket 51, as shown in fig. 3, be equipped with two symmetrical waist type holes 551 on the regulating plate 55, wear to be equipped with spacing roller 552 in the waist type hole 551, spacing roller 552 passes the space setting of upper baffle 521, the upper and lower two parts separation of lower baffle 522, spacing roller 552 locates the both sides of connecting plate 53, raw materials 100 pass between two spacing rollers 552, it is unstable to avoid raw materials 100 to warp when carrying, the side of the exit of pay-off track 52 also is equipped with regulating plate 55, be connected with two spacing rollers 552 through waist type hole 551 on the regulating plate 55, the position of raw materials 100 is better injectd, prevent to carry crookedly, ensure towards the quality of piece.
As shown in fig. 2, the outer sides of the upper baffle 521, which are far away from the lower baffle 522, and the outer sides of the lower baffle 522, which are far away from the upper baffle 521, are respectively connected with a plurality of square sleeves 56, a plurality of corresponding square fixing rods 57 are fixedly connected to the mounting frame 51, and the square sleeves 56 are sleeved on the square fixing rods 57 to fix the upper baffle 521 and the lower baffle 522.
When the feeding mechanism conveys the raw material 100, the raw material 100 is conveyed through the S-shaped feeding track 52, the raw material 100 is limited between the two limiting rollers 552, the raw material 100 is prevented from being inclined and unstable when conveyed, the photoelectric switch 512 is opened when the raw material 100 descends to the photoelectric switch 512 below the S-shaped feeding track 52, in order to prevent the raw material 100 from touching the lower baffle 522, the controller connected with the photoelectric switch 512 controls the feeding speed to be reduced, the raw material 100 ascends, the upper photoelectric switch 512 is closed, the lower photoelectric switch 512 is opened, the bottom of the raw material 100 is indicated to be positioned between the two photoelectric switches 512, if the raw material 100 ascends to the position that the two photoelectric switches 512 are opened, and the raw material 100 touches the contact of the travel switch 54, in order to prevent the raw material 100 from touching the upper baffle 521 of the feeding track 52, the controller controls the feeding speed to be increased, the raw material 100 does not touch the upper baffle 521 and the lower baffle 522 of the feeding track 52, and the raw material 10 is prevented from being damaged.
S3, conveying the raw material 100 into a punch press, wherein a punching die is arranged in the punch press, and the punching die is driven by a punching component of the punch press to punch the raw material 100, so that the stator punching is obtained.
As shown in fig. 4, the sheet punching die comprises a fixing base, a mounting base and a punch, wherein the fixing base comprises a first fixing base 11, a second fixing base 12 and a third fixing base 13, the mounting base comprises a first mounting base 21, a second mounting base 22 and a third mounting base 23, the punch is arranged on the mounting base and comprises a first heat dissipation hole punch 31, a V-shaped groove punch 32, a welding hole punch 33, a triangular lamination groove punch 34, an arc lamination groove punch 35, a second heat dissipation hole punch 36 and a sheet punching body punch 37.
As shown in fig. 5, fixing holes 14 for fixing the punch workbench are formed in the first fixing seat 11, the second fixing seat 12 and the third fixing seat 13, splicing grooves 15 are formed in one side surfaces of the first fixing seat 11 and the second fixing seat 12, the splicing grooves 15 are formed in the inner portions of the fixing seats, splicing blocks 16 are arranged on the other side surfaces of the second fixing seat 12 and the third fixing seat 13, the first fixing seat 11, the second fixing seat 12 and the third fixing seat 13 are connected in the splicing grooves 15 through the splicing blocks 16 and fixed through bolts, and the punching machine is convenient to install and detach and more convenient to maintain.
As shown in fig. 6, the first mounting seat 21 has a rectangular structure, a plurality of mounting holes 4 are formed in the first mounting seat 21, the first mounting seat 21 is fixedly mounted with the first fixing seat 11 by penetrating the mounting holes 4 through the screws 5, a plurality of first mounting seats 21 are annularly and uniformly distributed on the first fixing seat 11, and a first heat dissipation hole punch 31, a V-shaped groove punch 32 and a welding hole punch 33 are arranged on the first mounting seat 21.
As shown in fig. 7, the second mounting seat 22 is in a rectangular structure, a plurality of mounting holes 4 are formed in the second mounting seat 22, the second mounting seat 22 passes through the mounting holes 4 through the screws 5 to be fixedly mounted with the second fixing seat 12, a plurality of second mounting seats 22 are annularly and uniformly distributed on the second fixing seat 12, a triangular lamination groove punch 34, an arc lamination groove punch 35 and a second heat dissipation hole punch 36 are arranged on the second mounting seat 22, the triangular lamination groove punch 34 and the arc lamination groove punch 35 can punch triangular and arc lamination grooves, the triangular lamination groove 40 occupies the space of the flange 30, the arc lamination groove 50 occupies the space of the punching body 10 to be smaller, and the punched punching structure is firmer.
The arc lamination groove punch 35 and the second heat dissipation hole punch 36 are integrally arranged, so that the processing is more convenient, the arc lamination groove 50 and the second heat dissipation hole 70 can be punched at the same time, and the second heat dissipation hole 70 is arranged, so that the heat dissipation effect is better.
The third mount pad 23 is annular structure, is equipped with a plurality of mounting holes 4 on the third mount pad 23, and the third mount pad 23 passes mounting hole 4 through screw 5 and is fixed with the installation of third fixing base 13, is equipped with towards piece body drift 37 on the third mount pad 23.
The first fixing seat 11, the second fixing seat 12 and the third fixing seat 13 are respectively provided with a first mounting seat 21, a second mounting seat 22 and a third mounting seat 23, the first mounting seat 21, the second mounting seat 22 and the third mounting seat 23 are respectively provided with different punches, the fixing seats and a punching machine workbench are arranged, the formed die is an upper die, the punching of the punching sheet is jointly carried out with a corresponding lower die, the fixing seats move downwards to drive the mounting seats and the punches to move downwards to punch the punching sheet, raw materials are firstly punched through the punches arranged on the first fixing seat 11 and then conveyed to the lower part of the second fixing seat 12 through the punches arranged on the second fixing seat 12, and finally the punching of the punching sheet is carried out through the punches on the third fixing seat 13.
Triangle-shaped and arc-shaped lamination grooves can be punched by the triangle-shaped lamination groove punch 34 and the arc-shaped lamination groove punch 35, the triangle-shaped lamination groove 40 occupies the space of the flange 30, the arc-shaped lamination groove 50 occupies the space of the punching sheet body 10 to be smaller, and the punched punching sheet has a firmer structure; the arc lamination groove punch 35 and the second heat dissipation hole punch 36 are integrally arranged, so that the processing is more convenient, the arc lamination groove 50 and the second heat dissipation hole 70 can be punched at the same time, and the second heat dissipation hole 70 is arranged, so that the heat dissipation effect is better.
The die is formed by installing different punches on different mounting seats and then on different fixing seats, and once the punches are damaged, the corresponding mounting seats of the punches are directly replaced, so that the die is convenient to maintain and low in maintenance cost.
S4, processing the surface of the stator punching sheet, deburring through a deburring device, polishing the deburred stator punching sheet through a polishing device, and improving the quality of the stator punching sheet.
S5, protecting the surface of the stator punching sheet, and spraying the surface of the punching sheet through a paint spraying device to improve the rust prevention effect of the surface of the punching sheet.
S6, checking the processed stator punching sheet through punching sheet detection equipment, and ensuring that the product is qualified.
As shown in fig. 8 and 9, the processed stator punching sheet includes a circular punching sheet body 10, the inner side of the punching sheet body 10 is uniformly connected with a plurality of teeth 20, in this embodiment, the number of teeth 20 is 12, one end of the teeth 20 far away from the punching sheet body 10 is a flange 30, and the space between adjacent teeth 20 is a winding slot, so that copper wires can be wound conveniently.
The middle part of the flange 30 that tooth portion 20 kept away from towards sheet body 10 end is equipped with triangle-shaped and stacks recess 40, and triangle-shaped stacks recess 40 is isosceles triangle-shaped structure, and the apex angle of isosceles triangle-shaped structure is directional towards the centre of a circle of towards sheet body 10, and triangle-shaped stacks recess 40 occupy the area of flange 21 little, ensures the structure fastness of thinner stator towards sheet, and triangle-shaped structure can not produce the rotation when folding and press, can ensure that stator towards can once fold between the sheet to press well.
The punching body 10 is provided with the arc laminating grooves 50, the arc laminating grooves 50 are of arc structures, the circle center of a circle where the arc structures are located coincides with the circle center of the punching body 10, the middle of the arc structures, the middle of the tooth parts 20 and the circle center of the punching body 10 are located on the same straight line, the arc laminating grooves 50 are correspondingly provided with 12, the 12 arc laminating grooves 50 and the 12 tooth parts 20 are respectively arranged in one-to-one correspondence, the bending radian of the arc laminating grooves 50 of the arc structures is the same as that of the punching body 10, the influence on the structural strength of the punching body 10 is reduced, the arc structures cannot rotate during lamination, and the stator punching can be ensured to be laminated well once.
When the triangular lamination groove 40 and the arc lamination groove 50 are formed on the front surface of the punching sheet body 10, triangular lamination protrusions and arc lamination protrusions can be formed on the back surface of the punching sheet body 10 at the same time, and when two adjacent punching sheet bodies 10 are laminated, the triangular lamination protrusions and the arc lamination protrusions on one punching sheet body 10 are in interference fit with the triangular lamination groove 40 and the arc lamination groove 50 of the other punching sheet body 10.
The tooth 20 is provided with the first heat dissipation holes 60, the punching sheet can be subjected to heat dissipation, two second heat dissipation holes 70 are respectively connected to two arc-shaped side faces, close to and far away from the tooth 20, of the arc-shaped lamination groove 50, the second heat dissipation holes 70 are communicated with the arc-shaped lamination groove 50, the second heat dissipation holes 70 also have heat dissipation effects, the heat dissipation effect of the punching sheet is better, and the second heat dissipation holes 70 and the arc-shaped lamination groove 50 can be simultaneously manufactured and formed and are easy to process.
The outside that tooth 20 was kept away from to punching body 10 is equipped with 12 welded junctions 90, and welded junctions 90 locates between two adjacent tooth 20, and the inboard that punching body 10 is close to tooth 20 is equipped with 12V type groove 80, and V type groove 80 locates between two adjacent tooth 20, and welded junctions 90 staggers with V type groove 80 to set up, and the opening width of the inboard one end that V type groove 80 is close to punching body 10 is greater than the opening width of the inboard one end that keeps away from punching body 10, and welded junctions 90 and V type groove 80 stagger the seting up and are arranged in punching body 10 outside and inboard, guarantee punching body 10 structural fastness.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. A processing method of a motor stator punching sheet is characterized by comprising the following steps of: the method comprises the following steps:
s1, unreeling selected raw materials meeting requirements;
s2, the feeding mechanism comprises a material pulling roller, a mounting frame and a feeding track, wherein the material pulling roller pulls raw materials to enter the feeding track, the feeding track is mounted on the mounting frame, an inlet at one end of the feeding track is close to the material pulling roller, an outlet is formed at the other end of the feeding track, the feeding track comprises an upper baffle plate and a lower baffle plate, the upper baffle plate and the lower baffle plate are of an S-shaped structure, and an S-shaped feeding track is formed in a space between the upper baffle plate and the lower baffle plate;
the upper baffle plate and the lower baffle plate respectively comprise an upper part and a lower part, the upper part and the lower part of the upper baffle plate are respectively in an arc-shaped structure, the upper part and the lower part of the lower baffle plate are respectively in an arc-shaped structure, the interval between the lower part of the upper baffle plate and the lower part of the lower baffle plate is larger than the interval between the upper part of the upper baffle plate and the upper part of the lower baffle plate;
an adjusting plate arranged on the mounting frame is arranged on one side, far away from the lower baffle, of the upper baffle, two symmetrical waist-shaped holes are formed in the adjusting plate, limiting rollers penetrate through the waist-shaped holes, and the limiting rollers penetrate through the upper baffle and the lower baffle to be arranged in a space where the upper portion and the lower portion of the upper baffle are separated;
a travel switch is arranged at the top of the lower part of the upper baffle, and a contact of the travel switch passes through a waist-shaped hole on the lower part of the upper baffle to enter the feeding track;
the outer side of the upper baffle, which is far away from the lower baffle, and the outer side of the lower baffle, which is far away from the upper baffle, are respectively connected with a plurality of square sleeves, a plurality of corresponding square fixing rods are fixedly connected to the mounting rack, and the square sleeves are sleeved on the square fixing rods to mount and fix the upper baffle and the lower baffle;
the two ends of the mounting frame are respectively connected with a fixing plate which is perpendicular to the mounting frame, and a plurality of photoelectric switches are arranged below the inner side of the fixing plate from top to bottom;
when the raw materials are unreeled and conveyed to a punching machine through a feeding mechanism, the raw materials are conveyed through an S-shaped feeding track, the raw materials are limited between two limiting rollers, the raw materials are prevented from being inclined and unstable during conveying, when the raw materials fall to a photoelectric switch below the S-shaped feeding track, the photoelectric switch is disconnected, a controller connected with the photoelectric switch controls the lower feeding speed to prevent the raw materials from touching a lower baffle, the raw materials rise, the photoelectric switch above the photoelectric switch is closed, the photoelectric switch below the photoelectric switch is disconnected, the bottom of the raw materials is indicated to be positioned between the two photoelectric switches, if the two photoelectric switches are disconnected, and the raw materials touch a contact of a travel switch, the controller controls the upper baffle and the lower baffle of the feeding track to improve the feeding speed, the raw materials fall, and the raw materials cannot touch the upper baffle and the lower baffle of the feeding track, so that the raw materials are prevented from being damaged;
s3, the punching die comprises a fixed seat, a mounting seat and a punch, wherein the fixed seat comprises a first fixed seat, a second fixed seat and a third fixed seat, the mounting seat comprises a first mounting seat, a second mounting seat and a third mounting seat, the mounting seat is provided with the punch, and the punch comprises a first heat dissipation hole punch, a V-shaped groove punch, a welding hole punch, a triangular lamination groove punch, an arc lamination groove punch, a second heat dissipation hole punch and a punching body punch;
the first mounting seat is of a rectangular structure, a plurality of mounting holes are formed in the first mounting seat, the first mounting seat is fixedly mounted with the first fixing seat through screws penetrating through the mounting holes, a plurality of first mounting seats are annularly and uniformly distributed on the first fixing seat, and a first radiating hole punch, a V-shaped groove punch and a welding hole punch are arranged on the first mounting seat;
the second mounting seat is of a rectangular structure, a plurality of mounting holes are formed in the second mounting seat, the second mounting seat passes through the mounting holes through screws to be fixedly mounted with the second fixing seat, a plurality of second mounting seats are annularly and uniformly distributed on the second fixing seat, a triangular overlapping concave groove punch, an arc overlapping concave groove punch and a second radiating hole punch are arranged on the second mounting seat, and the arc overlapping concave groove punch and the second radiating hole punch are integrally arranged;
the third mounting seat is of an annular structure, a plurality of mounting holes are formed in the third mounting seat, the third mounting seat is fixedly mounted with the third fixing seat through bolts penetrating through the mounting holes, and a punching sheet body punch is arranged on the third mounting seat;
the method comprises the steps that raw materials are conveyed into a punching machine, a punching die is arranged in the punching machine, the punching die is driven by a punching component of the punching machine to punch the raw materials, the raw materials are firstly punched through punches arranged on a first fixing seat, then conveyed to the lower part of a second fixing seat and punched through punches arranged on the second fixing seat, finally punched through punches arranged on a third fixing seat, triangular and arc lamination grooves can be punched through the triangular lamination groove punches and the arc lamination groove punches, the punched stator punching is firm in structure, the arc lamination groove punches of the punching die and the second radiating hole punches are integrally arranged, and meanwhile, the arc lamination grooves and the second radiating holes are punched, so that the radiating effect is enhanced, and the stator punching is prepared;
s4, processing the surface of the stator punching sheet, deburring by using a deburring device, polishing the deburred stator punching sheet by using a polishing device, and improving the quality of the stator punching sheet;
s5, protecting the surface of the stator punching sheet, and spraying the surface of the punching sheet through paint spraying equipment to improve the rust prevention effect of the surface of the punching sheet;
s6, the processed stator punching sheet has the following structure: the novel heat dissipation device comprises a circular punching body, wherein the inner side of the punching body is uniformly connected with a plurality of teeth, one end of each tooth, which is far away from the punching body, is provided with a flange, the middle part of each tooth, which is far away from the flange at the end of the punching body, is provided with a triangular lamination groove, the triangular lamination groove is of an isosceles triangle structure, the top angle of the isosceles triangle structure points to the circle center of the punching body, and the teeth are provided with first heat dissipation holes;
the stamping body is provided with arc-shaped laminating grooves, the arc-shaped laminating grooves are of arc-shaped structures, the circle center of a circle where the arc-shaped structures are located coincides with the circle center of the stamping body, the middle parts of the arc-shaped structures, the middle parts of the tooth parts and the circle center of the stamping body are located on the same straight line, the arc-shaped laminating grooves are provided with a plurality of arc-shaped laminating grooves, and the plurality of arc-shaped laminating grooves are correspondingly arranged with the plurality of tooth parts;
two arc side surfaces, close to and far away from the tooth part, of the arc lamination concave groove are respectively connected with a second heat dissipation hole, and the second heat dissipation holes are communicated with the arc lamination concave groove;
the outer side of the punching sheet body far away from the tooth parts is provided with a plurality of welding ports, the welding ports are arranged between two adjacent tooth parts, the inner side of the punching sheet body near the tooth parts is provided with a plurality of V-shaped grooves, the V-shaped grooves are arranged between two adjacent tooth parts, and the welding ports and the V-shaped grooves are staggered;
and checking the processed stator punching sheet through punching sheet detection equipment to ensure that the product is qualified.
2. The method for processing the motor stator punching sheet according to claim 1, wherein the method comprises the following steps: the middle parts between the upper baffle plate and the lower baffle plate are respectively connected through connecting plates, and the limiting rollers are arranged on two sides of the connecting plates.
3. The method for processing the stator punching sheet of the motor as claimed in claim 1, wherein the method comprises the following steps: the entrance and exit of the S-shaped track formed by the upper baffle and the lower baffle are respectively provided with a horn-shaped open structure.
4. The method for processing the stator punching sheet of the motor as claimed in claim 1, wherein the method comprises the following steps: the first fixing seat and the second fixing seat are provided with splicing grooves on one side face, splicing blocks are arranged on the other side faces of the second fixing seat and the third fixing seat, and the first fixing seat, the second fixing seat and the third fixing seat are connected in the splicing grooves through the splicing blocks in an inserting mode and are fixed through bolts.
5. The method for processing the stator punching sheet of the motor as claimed in claim 1, wherein the method comprises the following steps: the screws penetrating through the mounting holes of the first mounting seat, the second mounting seat and the third mounting seat are adjusting screws, the end parts of the screws are planes, and the end parts of the screws are protruding out of the bottoms of the first mounting seat, the second mounting seat and the third mounting seat.
CN202110784592.0A 2021-07-12 2021-07-12 Motor stator punching processing method Active CN113617920B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202110784592.0A CN113617920B (en) 2021-07-12 2021-07-12 Motor stator punching processing method

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CN113617920B true CN113617920B (en) 2023-05-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009069463A1 (en) * 2007-11-26 2009-06-04 Mitsui High-Tec, Inc. Laminated stator core, and manufacturing method therefor
US8850937B2 (en) * 2011-06-30 2014-10-07 GM Global Technology Operations LLC Method of manufacturing segmented stator cores
CN105429320A (en) * 2015-12-01 2016-03-23 江门市蓬江区硕泰电器有限公司 Stator core, water pump and production method of stator core
CN208643925U (en) * 2018-06-13 2019-03-26 哈尔滨电机厂有限责任公司 Large-scale full circle punching stator punching mold strikes material device
CN109088521B (en) * 2018-09-17 2020-01-24 上海马拉松·革新电气有限公司 Manufacturing process of exciter stator core
CN110773626B (en) * 2019-11-06 2020-11-17 湖北宝达机电有限公司 Motor stator punching sheet processing machine
CN113098210B (en) * 2021-04-12 2022-06-10 佛山市顺德区致翔金属制品有限公司 Motor stator punching sheet processing system

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