CN111483112A - Axial motor stator core injection mold - Google Patents

Axial motor stator core injection mold Download PDF

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Publication number
CN111483112A
CN111483112A CN201910079282.1A CN201910079282A CN111483112A CN 111483112 A CN111483112 A CN 111483112A CN 201910079282 A CN201910079282 A CN 201910079282A CN 111483112 A CN111483112 A CN 111483112A
Authority
CN
China
Prior art keywords
stator core
motor stator
axial motor
positioning
mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910079282.1A
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Chinese (zh)
Inventor
田井呈
袁峥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Panhu Power Technology Co ltd
Original Assignee
Shanghai Panhu Power Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Panhu Power Technology Co ltd filed Critical Shanghai Panhu Power Technology Co ltd
Priority to CN201910079282.1A priority Critical patent/CN111483112A/en
Publication of CN111483112A publication Critical patent/CN111483112A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/34—Moulds having venting means
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses an axial motor stator core injection mold, which comprises an upper mold and a lower mold, wherein a positioning boss is arranged on the end surface of the upper mold, which is close to the lower mold, the positioning boss is arranged in a clearance matching manner with a hollow round hole of an axial motor stator core, and a fastening hole for connecting the axial motor stator core is arranged on the upper mold; a ring platform is arranged on the lower die, a placing groove is arranged in the ring platform and used for placing an axial motor stator core, and an insert part which is in clearance fit with a tooth part of the axial motor stator core is arranged in the placing groove; an injection molding runner is arranged between the end face of the positioning boss and the bottom surface of the placing groove, the injection molding runner is communicated with the insert part, and a feed inlet is formed in the upper die. The injection mold provided by the invention improves the insulation reliability of the insulation layer of the stator core and the size precision of the insulation layer, so that the molding process of the insulation layer is simple, and the strength of the insulation layer is high.

Description

Axial motor stator core injection mold
Technical Field
The invention relates to the technical field of stator core insulating layer injection molds, in particular to an axial motor stator core injection mold.
Background
The axial magnetic field motor stator core is in the shape of a hollow circular ring, a certain number of grooves are formed in the circumferential direction of one side, and electrified copper wires are placed in the grooves and used for providing electric energy input. In the operation of the motor, the copper wires are electrified, and the stator core has conductivity, so that the contact surface of the stator core and the copper wires needs to be subjected to insulation treatment. Because the electrified copper wire and the iron core can generate heat during the operation of the motor, the insulating layer of the stator iron core not only needs to meet the requirements of insulation, but also needs to have better heat resistance, heat conduction and mechanical properties.
Although the copper lines themselves are provided with an insulating layer, the insulating layer is thin for ease of process operation and generally does not meet the requirements. At present, generally, insulating paper with high insulating performance is embedded in a part of a stator core which needs to be electrically insulated, and a method of electrostatically coating or brushing an insulating layer on the stator core in advance is also adopted. The insulating paper is complex to form, the paper and the iron core have the problem of thermal contact resistance, and the method for electrostatically coating or brushing the insulating layer has low dimensional accuracy, complex process and low strength of the insulating layer.
In conclusion, how to provide an axial motor stator core injection mold, the insulation of the insulating layer of the stator core is reliable, the size precision is high, the forming process is simple, and the strength of the insulating layer is high.
Disclosure of Invention
In view of this, the invention provides an injection mold for an axial motor stator core, so as to improve the insulation reliability of an insulation layer of the stator core, improve the dimensional accuracy of the insulation layer, and make the molding process of the insulation layer simple and the strength of the insulation layer high.
In order to achieve the purpose, the invention provides the following technical scheme:
an axial motor stator core injection mold comprises an upper mold and a lower mold, wherein a positioning boss is arranged on the end face of the upper mold close to the lower mold, the positioning boss is arranged in a gap matching manner with a hollow round hole of an axial motor stator core, and a fastening hole for connecting the axial motor stator core is arranged on the upper mold; a ring platform is arranged on the lower die, a placing groove is arranged in the ring platform and used for placing the axial motor stator core, and an insert part which is in clearance fit with a tooth part of the axial motor stator core is arranged in the placing groove; the terminal surface of location boss with be provided with the runner of moulding plastics between the tank bottom surface of standing groove, the runner of moulding plastics with inserts portion intercommunication, go up be provided with on the mould with the feed inlet of runner intercommunication of moulding plastics, the width of clearance match with axial motor stator core's insulating layer thickness is unanimous.
Preferably, the insert part comprises a tooth positioning groove and a tooth positioning table, the tooth positioning groove is arranged corresponding to the stator teeth of the axial motor stator core, and the tooth positioning table is arranged corresponding to the tooth grooves of the axial motor stator core.
Preferably, the injection molding flow channel is communicated with the tooth positioning groove.
Preferably, a plurality of upper die ejection screw holes are formed in the edge of the upper die, the positions of the upper die ejection screw holes correspond to the positions of the ring table, the upper die ejection screw holes are threaded through holes, and the depth of each upper die ejection screw hole is smaller than the effective use length of each ejection bolt.
Preferably, a lower die ejection hole is formed in the ring table at a position corresponding to the upper die ejection screw hole, and the sum of the depth of the lower die ejection hole and the depth of the upper die ejection screw hole is smaller than the effective use length of the ejection bolt.
Preferably, the runner of moulding plastics includes the first runner of moulding plastics, the first runner setting of moulding plastics is in the location boss is close to on the terminal surface of lower mould, the first runner of moulding plastics is followed the radial setting of location boss, the first runner of moulding plastics the starting point with the feed inlet intercommunication, terminal with tooth portion constant head tank intercommunication, the first quantity of moulding plastics the runner with the quantity of tooth portion constant head tank is the same.
Preferably, the runner of moulding plastics includes the second runner of moulding plastics, the second runner of moulding plastics sets up on the tank bottom surface of standing groove, the second runner of moulding plastics with the first runner of moulding plastics corresponds the setting.
Preferably, the upper die is close to the end face of the lower die is provided with an assembly boss, the assembly boss is matched with the back face of the axial motor stator core, and the positioning boss is arranged on the end face of the lower die, close to the assembly boss.
Preferably, the ring platform is provided with a positioning concave platform near the edge of the placing groove, the positioning concave platform is matched with the edge of the assembling boss, and the edge of the assembling boss is placed on the positioning concave platform.
Preferably, the tooth positioning grooves are provided with at least two positioning pins, and each positioning pin is arranged on a different tooth positioning groove.
Preferably, the annular table is provided with an exhaust groove, the starting end of the exhaust groove is communicated with the tooth positioning groove, the tail end of the exhaust groove is communicated with the outside, and the exhaust groove is arranged along the radial direction of the annular table.
According to the technical scheme, the axial motor stator core injection mold comprises an upper mold and a lower mold, wherein a positioning boss is arranged on the end face, close to the lower mold, of the upper mold, the positioning boss is in clearance fit with a hollow round hole of an axial motor stator core, and a fastening hole for connecting the axial motor stator core is formed in the upper mold; a ring platform is arranged on the lower die, a placing groove is arranged in the ring platform and used for placing an axial motor stator core, and an insert part which is in clearance fit with a tooth part of the axial motor stator core is arranged in the placing groove; the end face of the positioning boss and the bottom face of the placing groove are provided with an injection molding runner, the injection molding runner is communicated with the insert part, and the upper die is provided with a feed inlet communicated with the injection molding runner.
Through last mould and lower mould that sets up above structure, axial motor stator core's back fixed connection is on the terminal surface that goes up the mould and be close to the lower mould, the fluid of moulding plastics that gets into from the feed inlet gets into the mould through the runner of moulding plastics, thereby can mould plastics the upper insulation layer in the position that axial motor stator core needs the cladding insulating layer, mould plastics the insulating layer on axial motor stator core through the mould, thereby make the thickness size precision of insulating layer higher, insulating layer thickness is even, the forming process of insulating layer is simple, be suitable for batch production, through at stator tooth surface injection moulding insulating layer, for at stator tooth surface coating insulating layer or use the insulated paper, the intensity of insulating layer is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an exploded schematic view of an axial motor stator core injection mold according to an embodiment of the present invention;
fig. 2 is an assembly structure schematic diagram of an axial motor stator core injection mold according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an angle of an upper die of an axial motor stator core injection mold according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another angle of an upper mold of an axial motor stator core injection mold according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a stator core of an axial motor;
fig. 6 is a schematic structural diagram of a lower die of an axial motor stator core injection mold according to an embodiment of the present invention.
1. The structure comprises ejection bolts, 2, fastening bolts, 3, an upper die, 4, an axial motor stator core, 41, stator teeth, 42, tooth space grooves, 43, stator core positioning pin holes, 5, a lower die, 6, a first injection molding flow channel, 7, a feed inlet, 8, an upper die ejection screw hole, 9, fastening holes, 10, a second injection molding flow channel, 11, positioning pins, 12, exhaust grooves, 13, a lower die ejection hole, 14, a tooth space positioning table, 15, a positioning boss, 16, an assembly boss, 17, a tooth part positioning groove, 18, a positioning concave table, 19, a lower die fixing edge, 20 and a ring table.
Detailed Description
The invention discloses an axial motor stator core injection mold, which aims to improve the insulation reliability of an insulation layer of a stator core, improve the size precision of the insulation layer, and enable the molding process of the insulation layer to be simple and the strength of the insulation layer to be high.
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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, fig. 1 is an exploded schematic view of an axial motor stator core injection mold according to an embodiment of the present invention; fig. 2 is an assembly structure schematic diagram of an axial motor stator core injection mold according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of an angle of an upper die of an axial motor stator core injection mold according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of another angle of an upper mold of an axial motor stator core injection mold according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of a stator core of an axial motor; fig. 6 is a schematic structural diagram of a lower die of an axial motor stator core injection mold according to an embodiment of the present invention.
As shown in fig. 1-6, the invention discloses an axial motor stator core injection mold, which comprises an upper mold 3 and a lower mold 5, wherein a positioning boss 15 is arranged on the end surface of the upper mold 3 close to the lower mold 5, the positioning boss 15 is in clearance fit with a hollow round hole of an axial motor stator core 4, and a fastening hole 9 for connecting the axial motor stator core 4 is arranged on the upper mold 3; a ring platform 20 is arranged on the lower die 5, a placing groove is arranged in the ring platform 20 and used for placing the axial motor stator core 4, and an insert part which is in clearance fit with the tooth part of the axial motor stator core 4 is arranged in the placing groove; the terminal surface of location boss 15 with be provided with the runner of moulding plastics between the tank bottom surface of standing groove, the runner of moulding plastics with inserts portion intercommunication is last be provided with on the mould 3 with the feed inlet 7 of runner intercommunication of moulding plastics, the width that the clearance matches is unanimous with axial motor stator core 4's insulating layer thickness. The fastening hole 9 may be a threaded through hole or a general smooth through hole.
Through last mould 3 and lower mould 5 that sets up above structure, the back (the yoke portion of stator core keeps away from the terminal surface of tooth portion) fixed connection of axial motor stator core 4 is gone up mould 3 and is close to the terminal surface of lower mould 5, and the fluid of moulding plastics that gets into from feed inlet 7 passes through the runner entering mould of moulding plastics to can mould plastics the upper insulation layer in the position that axial motor stator core 4 needs the cladding insulating layer, mould plastics the insulating layer on axial motor stator core 4 through the mould, thereby make the thickness size precision of insulating layer higher, insulating layer thickness is even, the forming process of insulating layer is simple, is suitable for batch production, through at stator tooth 41 surface injection moulding insulating layer, for at stator tooth 41 surface coating insulating layer or use insulating paper, the intensity of insulating layer is better.
Specifically, the insert part comprises a tooth positioning groove 17 and a tooth positioning table 14, the tooth positioning groove 17 is arranged corresponding to the stator teeth 41 of the axial motor stator core 4, and the tooth positioning table 14 is arranged corresponding to the tooth grooves 42 of the axial motor stator core 4. The stator teeth 41 are in clearance fit with the tooth portion positioning grooves 17, and the width of the clearance fit is the thickness of the insulating layer. With the above arrangement, a uniform insulating layer can be formed on the tooth surface of the stator tooth 41 of the axial motor stator core 4.
In order to prevent the inter-tooth positioning table 14 from blocking the inflow of the injection fluid to form an insulation layer on the stator teeth 41, the injection flow passage communicates with the tooth positioning grooves 17, improving the molding efficiency of the mold.
In a specific embodiment, in order to facilitate demolding after injection molding is completed, a plurality of upper mold ejection screw holes 8 are formed in the edge position of the upper mold 3, the positions of the upper mold ejection screw holes 8 correspond to the positions of the ring table 20, the upper mold ejection screw holes 8 are threaded through holes, and the depth of each upper mold ejection screw hole 8 is smaller than the effective use length of each ejection bolt 1. When the mold needs to be demolded, the ejection bolt 1 is screwed to move in the upper mold ejection screw hole 8, and when the end face of the ejection bolt 1 far away from the head part abuts against the ring table 20, the ejection bolt 1 is continuously screwed into the upper mold ejection screw hole 8, so that the upper mold 3 is ejected. In order to facilitate the demoulding of the upper mould 3, a plurality of upper mould ejection screw holes 8 are uniformly distributed on the upper mould 3.
Further, in order to prevent the end of the upper die ejection screw hole 8 from slipping relative to the surface of the ring table 20 in the demolding process and reduce the demolding force in the vertical direction, a lower die ejection hole 13 is formed in the ring table 20 at a position corresponding to the upper die ejection screw hole 8, the lower die ejection hole 13 is a smooth hole, and the sum of the depth of the lower die ejection hole 13 and the depth of the upper die ejection screw hole 8 is smaller than the effective use length of the ejection bolt 1. The effective use length of the ejector bolt 1 means a length dimension of the ejector bolt 1 excluding the height of the bolt head. The diameter of the lower die ejection hole 13 is set corresponding to the outer diameter of the thread of the ejection bolt 1.
Specifically, the runner of moulding plastics includes first runner 6 of moulding plastics, and first runner 6 of moulding plastics sets up on the terminal surface that location boss 15 is close to lower mould 5, and first runner 6 of moulding plastics radially sets up along location boss 15, and the first initial and the feed inlet 7 intercommunication of moulding plastics runner 6 are terminal to communicate with tooth portion constant head tank 17, and the quantity of first runner 6 of moulding plastics is the same with the quantity of tooth portion constant head tank 17. The central position of the positioning boss 15 is provided with a feeding channel, and the feeding port 7 is communicated with the first injection molding runner 6 through the feeding channel. Through setting up feed inlet 7 at central point and putting, first runner 6 of moulding plastics is radial and tooth portion constant head tank 17 intercommunication to make injection moulding insulating layer simultaneously on the stator tooth 41 of difference, thereby further improve the shaping efficiency of mould.
Furthermore, the injection molding runner comprises a second injection molding runner 10, the second injection molding runner 10 is arranged on the groove bottom surface of the placing groove, and the second injection molding runner 10 is arranged corresponding to the first injection molding runner 6. The injection molding runner is formed by buckling the second injection molding runner 10 and the first injection molding runner 6 together, so that the flow cross section area of the injection molding runner is enlarged, the molding efficiency of the mold is improved, the molding time is shortened, and the production efficiency is improved.
In another embodiment, the end surface of the upper die 3 close to the lower die 5 is provided with a mounting boss 16, and the mounting boss 16 is arranged to match with the back surface of the axial motor stator core 4, where the matching is the matching of shape and size. The positioning boss 15 is provided on an end face of the fitting boss 16 close to the lower die 5. By arranging the assembling boss 16, the processing area of the contact surface of the stator core 4 of the axial motor is reduced, and the processing cost is reduced.
Further, a positioning concave table 18 is arranged on the edge, close to the placing groove, of the annular table 20, the positioning concave table 18 is matched with the edge of the assembling convex table 16, when the die is used, the edge of the assembling convex table 16 is placed on the positioning concave table 18, so that guiding is performed when the upper die 3 and the lower die 5 are matched, and auxiliary positioning is performed after the upper die 3 and the lower die 5 are matched.
In order to further guarantee the size precision of insulating layer, make things convenient for mould 3 and lower mould 5 accurate compound die, be provided with locating pin 11 on the tooth portion constant head tank 17, locating pin 11 sets up two at least, and every locating pin 11 sets up on different tooth portion constant head tanks 17. Correspondingly, a stator core positioning pin hole 43 is arranged at the position of the axial motor stator core 4 corresponding to the positioning pin 11. When the dies are closed, the positioning pins 11 are inserted into the corresponding stator core positioning pin holes 43, thereby guiding the upper die 3. The depth of the stator core positioning pin hole 43 is greater than the height of the positioning pin 11 above the tooth positioning groove 17.
In order to avoid bubbles generated in the insulating layer in the injection molding process and improve the reliability of the insulating layer of the stator core, the annular table 20 is provided with the exhaust grooves 12, the starting ends of the exhaust grooves 12 are communicated with the tooth positioning grooves 17, the tail ends of the exhaust grooves are communicated with the outside, the exhaust grooves 12 are arranged along the radial direction of the annular table 20, and each tooth positioning groove 17 is communicated with one exhaust groove 12. In order to prevent the injection fluid from flowing out of the exhaust groove 12, the groove bottom height of the exhaust groove 12 is higher than the back height of the axial motor stator core 4 after mold clamping.
When the axial motor stator core injection molding machine is used, the fastening bolt 2 penetrates through the fastening hole 9 to be connected into the screw hole in the back of the axial motor stator core 4, and therefore the axial motor stator core 4 to be injection molded is connected to the upper die 3; then, the upper die 3 with the stator core installed is installed in the placing groove of the lower die 5, in the process, the stator core positioning pin hole 43 is installed in the positioning pin 11 of the lower die 5 of the die, and positioning and pressing are well performed; the heated and melted insulating plastic liquid is introduced from the feed inlet 7; waiting for cooling to room temperature; installing the ejection bolt 1, opening the mold, and disassembling the axial motor stator core 4; and finishing the injection molding of the insulating layer of the stator core.
The injection mold for the stator core of the axial magnetic field motor has the advantages of simple structure, good manufacturability, suitability for batch production, reliable insulation of the stator core and high dimensional precision.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The utility model provides an axial motor stator core injection mold which characterized in that includes:
the end face, close to the lower die, of the upper die is provided with a positioning boss, the positioning boss is in clearance fit with a hollow round hole of an axial motor stator core, and the upper die is provided with a fastening hole for connecting the axial motor stator core;
the lower die is provided with a ring platform, a placing groove is formed in the ring platform and used for placing the axial motor stator core, and an insert part which is in clearance fit with a tooth part of the axial motor stator core is arranged in the placing groove;
the terminal surface of location boss with be provided with the runner of moulding plastics between the tank bottom surface of standing groove, the runner of moulding plastics with inserts portion intercommunication, go up be provided with on the mould with the feed inlet of runner intercommunication of moulding plastics, the width of clearance match with axial motor stator core's insulating layer thickness is unanimous.
2. The axial motor stator core injection mold of claim 1, wherein the insert part comprises tooth positioning slots and inter-tooth positioning tables, the tooth positioning slots are arranged corresponding to the stator teeth of the axial motor stator core, and the inter-tooth positioning tables are arranged corresponding to the inter-tooth slots of the axial motor stator core.
3. The axial motor stator core injection mold of claim 2, wherein the injection runner is in communication with the tooth positioning slot.
4. The axial motor stator core injection mold according to claim 1, wherein a plurality of upper mold ejection screw holes are formed in the edge position of the upper mold, the positions of the upper mold ejection screw holes correspond to the positions of the ring table, the upper mold ejection screw holes are threaded through holes, and the depth of the upper mold ejection screw holes is smaller than the effective use length of the ejection bolts.
5. The axial motor stator core injection mold according to claim 4, wherein a lower mold ejection hole is provided at a position on the ring table corresponding to the upper mold ejection screw hole, and a sum of a depth of the lower mold ejection hole and a depth of the upper mold ejection screw hole is smaller than an effective use length of the ejection bolt.
6. The axial motor stator core injection mold of claim 2, wherein the injection molding runner comprises a first injection molding runner, the first injection molding runner is disposed on the end surface of the positioning boss close to the lower mold, the first injection molding runner is disposed along the radial direction of the positioning boss, the start end of the first injection molding runner is communicated with the feed inlet, the end of the first injection molding runner is communicated with the tooth positioning grooves, and the number of the first injection molding runner is the same as the number of the tooth positioning grooves.
7. The axial motor stator core injection mold of claim 6, wherein the injection molding runner comprises a second injection molding runner, the second injection molding runner is disposed on a groove bottom surface of the placement groove, and the second injection molding runner is disposed corresponding to the first injection molding runner.
8. The axial motor stator core injection mold according to claim 1, wherein an assembly boss is provided on an end surface of the upper mold close to the lower mold, the assembly boss is provided in a matching manner with a back surface of the axial motor stator core, and the positioning boss is provided on an end surface of the assembly boss close to the lower mold.
9. The injection mold for the stator core of the axial motor according to claim 8, wherein a positioning concave platform is arranged on the edge of the annular platform close to the placing groove, the positioning concave platform is matched with the edge of the assembling convex platform, and the edge of the assembling convex platform is placed on the positioning concave platform.
10. The injection mold for an axial motor stator core according to claim 2, wherein at least two positioning pins are disposed on the tooth positioning groove, and each positioning pin is disposed on a different tooth positioning groove.
11. The injection mold for the stator core of the axial motor as claimed in claim 2, wherein the annular table is provided with an air discharge slot, the air discharge slot has a start end communicating with the tooth positioning groove and a tail end communicating with the outside, and the air discharge slot is arranged along a radial direction of the annular table.
CN201910079282.1A 2019-01-28 2019-01-28 Axial motor stator core injection mold Pending CN111483112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910079282.1A CN111483112A (en) 2019-01-28 2019-01-28 Axial motor stator core injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910079282.1A CN111483112A (en) 2019-01-28 2019-01-28 Axial motor stator core injection mold

Publications (1)

Publication Number Publication Date
CN111483112A true CN111483112A (en) 2020-08-04

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Application Number Title Priority Date Filing Date
CN201910079282.1A Pending CN111483112A (en) 2019-01-28 2019-01-28 Axial motor stator core injection mold

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115230081A (en) * 2022-06-28 2022-10-25 绍兴上虞振祥精密模具有限公司 Motor mould
WO2023213031A1 (en) * 2022-05-06 2023-11-09 浙江盘毂动力科技有限公司 Rotor disc, and manufacturing device and method therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023213031A1 (en) * 2022-05-06 2023-11-09 浙江盘毂动力科技有限公司 Rotor disc, and manufacturing device and method therefor
CN115230081A (en) * 2022-06-28 2022-10-25 绍兴上虞振祥精密模具有限公司 Motor mould

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