CN219458860U - Stamping structure for realizing double-outer-diameter motor iron core - Google Patents
Stamping structure for realizing double-outer-diameter motor iron core Download PDFInfo
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- CN219458860U CN219458860U CN202321681719.7U CN202321681719U CN219458860U CN 219458860 U CN219458860 U CN 219458860U CN 202321681719 U CN202321681719 U CN 202321681719U CN 219458860 U CN219458860 U CN 219458860U
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- 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
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- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a stamping structure for realizing a double-outer-diameter motor iron core, which consists of a laminated iron core, wherein the laminated iron core consists of iron core sheets with two different structures, the two iron core sheets are respectively a first rotor iron core sheet with N concave magnetic steel grooves uniformly distributed in the interior and in a split structure and a second rotor iron core sheet with N trapezoidal magnetic steel grooves uniformly distributed in the interior; the stamping structure comprises a station arrangement structure and a shaping device for forming iron chips, wherein the station arrangement structure comprises N magnetic steel slot stamping stations, a shaft hole stamping station, a rotor pre-stamping station and a blanking station which are sequentially arranged in the travelling direction of the strip; the shaping device comprises N shaping convex dies which are arranged in an annular array. The iron core plate forming device can realize the forming of two types of iron core plates by utilizing one stamping structure, so that the space occupation of processing is reduced, the development cost of the forming structure is reduced, and the production efficiency is reduced.
Description
Technical Field
The utility model relates to the technical field of motor iron core forming, in particular to a stamping structure for realizing a motor iron core with double outer diameters.
Background
In general, a punched iron core has two types of rotor iron core pieces, so that two different dies and two punches are required to be equipped to respectively punch and form the two types of iron core pieces during processing, and then the two types of iron core pieces are laminated by manually arranging the two different dies and the two punches, wherein the two dies and the two punches are equipped to make the development cost of a forming structure higher, and the space occupation of a processing area is larger by two devices, so that the production cost is higher and the production efficiency is low.
Disclosure of Invention
The utility model aims to solve the defects of the technology and designs a stamping structure for realizing a double-outer-diameter motor iron core.
The utility model designs a stamping structure for realizing a double-outer-diameter motor iron core, which consists of a laminated iron core, wherein the laminated iron core consists of iron core sheets with two different structures, the two iron core sheets are respectively a first rotor iron core sheet with N concave magnetic steel grooves uniformly distributed inside and in a split structure and a second rotor iron core sheet with N trapezoid magnetic steel grooves uniformly distributed inside; the stamping structure comprises a station arrangement structure for forming the iron chip and a shaping device; the station arrangement structure comprises N magnetic steel slot punching stations which are sequentially arranged in the strip travelling direction, and a rotor pre-punching station which is positioned behind the last magnetic steel slot punching station and is used for generating separation marks between a center piece and an outer ring of a first rotor iron chip and a blanking station for forming the first rotor iron chip and a second rotor iron chip; the shaping device comprises shaping convex dies which expand the magnetic steel grooves of the double-outer-diameter motor iron core and enable the outer ring of the first rotor iron core to be stripped along the separation trace, and the shaping convex dies are arranged in an annular array and are N in number.
According to the stamping structure for realizing the double-outer-diameter motor iron core, the N magnetic steel groove stamping stations respectively comprise a first concave magnetic steel groove stamping station and a second concave magnetic steel groove stamping station which are sequentially arranged in the strip advancing direction, the first concave magnetic steel groove stamping station and the second concave magnetic steel groove stamping station are on the same horizontal axis and are correspondingly parallel, and the diameter of an annular central line arranged around the central axis of the first concave magnetic steel groove stamping station is consistent with the diameter of an annular central line arranged around the central axis of the second concave magnetic steel groove stamping station; a plurality of first blanking male dies with concave cross sections are uniformly distributed on the annular central line of the first concave magnetic steel groove punching station, a plurality of second blanking male dies with concave cross sections are uniformly distributed on the annular central line of the second concave magnetic steel groove punching station, and the first blanking male dies and the second blanking male dies are arranged in a staggered mode.
According to the stamping structure for realizing the double-outer-diameter motor iron core, the N magnetic steel slot stamping stations respectively comprise a first trapezoidal magnetic steel slot stamping station positioned behind the second trapezoidal magnetic steel slot stamping station and a second trapezoidal magnetic steel slot stamping station positioned behind the first trapezoidal magnetic steel slot stamping station, wherein the first trapezoidal magnetic steel slot stamping station and the second trapezoidal magnetic steel slot stamping station are on the same horizontal axis and are correspondingly parallel to each other, and the diameter of an annular central line arranged on the first trapezoidal magnetic steel slot stamping station around the central axis is consistent with the diameter of an annular central line arranged on the second trapezoidal magnetic steel slot stamping station around the central axis; a plurality of third blanking punches with trapezoid cross sections are uniformly distributed on the annular central line of the first trapezoid punching magnetic steel groove station, a plurality of fourth blanking punches with trapezoid cross sections are uniformly distributed on the annular central line of the second trapezoid punching magnetic steel groove station, and the third blanking punches and the fourth blanking punches are arranged in a staggered mode.
According to the stamping structure for realizing the double-outer-diameter motor core, the strip advancing direction is further provided with the pilot hole stamping station, the punching sheet stamping station and the punching point stamping station, the pilot hole stamping station is arranged in front of the first concave magnetic steel groove stamping station, the punching sheet stamping station and the punching point stamping station are arranged between the second trapezoid magnetic steel groove stamping station and the shaft hole stamping station, and the pilot hole stamping station, the punching sheet stamping station and the punching point stamping station all comprise forming convex dies.
According to the stamping structure for realizing the double-outer-diameter motor iron core, the rotor pre-stamping station comprises the base, the pre-stamping die and the pre-stamping punch, the pre-stamping punch is correspondingly located above the pre-stamping die, the pre-stamping die is mounted on the top surface of the base, the base is provided with the elastic reset structure, the top block is arranged in the forming cavity of the pre-stamping die, the elastic reset structure is connected with the top block, and the appearance of the forming cavity of the pre-stamping die and the appearance of the pre-stamping punch are consistent with the appearance of the central piece of the first rotor iron core.
According to the stamping structure for realizing the double-outer-diameter motor core, the top ends of the forming male die, the first blanking male die, the second blanking male die, the third blanking male die, the fourth blanking male die and the pre-stamping male die are respectively provided with the movable drawing plate.
According to the stamping structure for realizing the double-outer-diameter motor iron core, the section of the shaping male die is of an isosceles trapezoid structure.
According to the stamping structure for realizing the double-outer-diameter motor iron core, the shaping device further comprises a fixed block, a cover plate, a core rod and a pressing sleeve, wherein the shaping male die is fixed on the cover plate and penetrates through the fixed block, the core rod is fixed on the fixed block, and the pressing sleeve is sleeved at the end part of the core rod.
The stamping structure for realizing the double-outer-diameter motor iron core has the following beneficial effects:
when the first rotor core piece is not required to be punched, but the second rotor core piece is required to be punched, the movable drawing plate is moved and is far away from the first punching male die, the second punching male die and the pre-punching male die to enable the forming ends of the first punching male die, the second punching male die and the pre-punching male die to retract, at the moment, the movable drawing plate is abutted against the top ends of the third punching male die and the fourth punching male die to enable the forming ends of the third punching male die and the fourth punching male die to keep the forming ends of the third punching male die, the second punching male die and the pre-punching male die to retract, and therefore, the movable drawing plate can achieve forming of the two types of core pieces by means of one punching structure, space occupation of machining is reduced, development cost of a forming structure is reduced, and production efficiency is improved.
Drawings
Fig. 1 is a schematic view of a station arrangement.
Fig. 2 is a schematic structural diagram of the shaping device.
Fig. 3 is a schematic view of a core structure manufactured from a station arrangement.
Fig. 4 is a schematic diagram of the core structure after expanding the trapezoidal magnetic steel grooves in the laminated core and peeling the outer ring of the first rotor core piece by the shaping device.
Fig. 5 is a schematic diagram (a) of the structure of the rotor pre-punching station.
Fig. 6 is a schematic diagram of the rotor pre-punching station (ii).
In the figure: 11. A first concave magnetic steel groove punching station; 12. a second concave magnetic steel groove punching station; 13. a first blanking male die; 14. a second blanking male die; 21. a first trapezoid magnetic steel groove punching station; 22. a second trapezoid magnetic steel groove punching station; 23. a third blanking male die; 24. a fourth blanking male die; 3. a shaft hole punching station; 31. a cylindrical male die; 4. a rotor pre-punching station; 41. pre-punching a male die; 42. a base; 421. a mounting channel; 43. a female template; 44. pre-punching the female die; 45. a top block; 46. a sleeve; 47. a connecting block; 48. a spring; 49. a plug; 5. a blanking station; 51. a blanking male die; 6. punching a pilot hole station; 7. punching a sheet station; 8. a punching and buckling point station; 10. forming a male die; 9. shaping device; 91. shaping male dies; 92. a core rod; 93. a cover plate; 94. a fixed block; 95. pressing the sleeve; 100. a laminated iron core; 101. a first rotor core piece; 102. a second rotor core piece; 103. concave magnetic steel grooves; 104. a trapezoidal magnetic steel groove; 105. a center piece; 106. an outer ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.
Examples:
as shown in fig. 1 to 6, the stamping structure for realizing a dual-outer-diameter motor core described in this embodiment is formed by a laminated core 100, where the laminated core 100 is formed by laminating two core pieces with different structures, and the two core pieces are respectively: the inside evenly distributed N concave magnet steel groove 103 just is split structure's first rotor core piece 101 to and inside evenly distributed N trapezoidal magnet steel groove 104's second rotor core piece 102, and stamping structure when the shaping core piece, can be in the shaping two first rotor core pieces 101 before, then the second rotor core piece 102 of the seventeen pieces of shaping again, owing to form the knot point on each core piece, blanking station 5's below is provided with the locking ring, thereby through the setting of locking ring and knot point after the core piece shaping, make through knot point lock joint after mutual lamination between each core piece, and two first rotor core pieces 101 are located motor core's bottom moreover.
The punching structure comprises a station arrangement structure for forming iron chips and a shaping device 9, the station arrangement structure comprises N magnetic steel stamping groove stations which are sequentially arranged in the travelling direction of the strip, and a shaft hole stamping station 3 which is positioned behind the last magnetic steel stamping groove station, a rotor pre-stamping station 4 which enables separation marks to be generated between a center piece 105 of a first rotor iron chip 101 and an outer ring 106, blanking stations 5,N for forming the first rotor iron chip 101 and a second rotor iron chip 102 respectively comprise a first concave magnetic steel stamping groove station 11, a second concave magnetic steel stamping groove station 12 which is positioned behind the first concave magnetic steel stamping groove station 11, a first trapezoid magnetic steel stamping groove station 22 which is positioned behind the second concave magnetic steel stamping groove station 12, a cylindrical punch 31 is arranged in the shaft hole stamping station 3, and blanking punches 51 for forming the iron chips are arranged in the blanking stations 5.
Specifically, the first concave magnetic steel groove punching station 11 and the second concave magnetic steel groove punching station 12 are on the same horizontal axis and are correspondingly parallel, and the diameter of an annular central line arranged on the first concave magnetic steel groove punching station 11 around the central axis of the first concave magnetic steel groove punching station is consistent with the diameter of an annular central line arranged on the second concave magnetic steel groove punching station 12 around the central axis of the second concave magnetic steel groove punching station; a plurality of first blanking punches 13 with concave cross sections are uniformly distributed on the annular center line of the first concave magnetic steel groove punching station 11, a plurality of second blanking punches 14 with concave cross sections are uniformly distributed on the annular center line of the second concave magnetic steel groove punching station 12, the first blanking punches 13 and the second blanking punches 14 are arranged in a staggered mode, wherein the first blanking punches 13 and the second blanking punches 14 are five and are driven by a punch, at this time, under the condition that a strip is conveyed in a stepping mode, five concave magnetic steel grooves 103 are formed in the first concave magnetic steel groove punching station 11 firstly, after five concave magnetic steel grooves 103 are formed in the second concave magnetic steel groove punching station 12 again, ten concave magnetic steel grooves 103 which are arranged in an annular array are formed in the strip.
The first trapezoid-punching magnetic steel groove station 21 and the second trapezoid-punching magnetic steel groove station 22 are on the same horizontal axis and are correspondingly parallel, and the diameter of an annular central line arranged around the central axis of the first trapezoid-punching magnetic steel groove station 21 is consistent with the diameter of an annular central line arranged around the central axis of the second trapezoid-punching magnetic steel groove station 22; a plurality of third blanking punches 23 with trapezoid cross sections are uniformly distributed on the annular center line of the first trapezoid punching magnetic steel groove station 21, a plurality of fourth blanking punches 24 with trapezoid cross sections are uniformly distributed on the annular center line of the second trapezoid punching magnetic steel groove station 22, the third blanking punches 23 and the fourth blanking punches 24 are arranged in a staggered mode, wherein the third blanking punches 23 and the fourth blanking punches 24 are all five and are driven by a punch, at this time, under the condition that strips are conveyed in a stepping mode, five trapezoid magnetic steel grooves 104 are formed in the first trapezoid punching magnetic steel groove station 21 firstly, after the five trapezoid magnetic steel grooves 104 are formed in the second trapezoid punching magnetic steel groove station 22 again, ten trapezoid magnetic steel grooves 104 which are arranged in an annular array are formed in the strips.
The strip material advancing direction is also provided with a punching guide hole station 6, a punching sheet station 7 and a punching point station 8, wherein the punching guide hole station 6 is arranged in front of the first concave magnetic steel groove punching station 11, the punching sheet station 7 and the punching point station 8 are arranged between the second trapezoid magnetic steel groove punching station 22 and the shaft hole punching station 3, and the punching guide hole station 6, the punching sheet station 7 and the punching point station 8 all comprise a forming male die 10.
The rotor pre-punching station 4 comprises a base 42, a pre-punching female die 44 and a pre-punching male die 41, the pre-punching male die 41 is correspondingly positioned on the pre-punching female die 44, the pre-punching female die 44 is installed in a female die plate 43 on the top surface of the base 42, an elastic reset structure is arranged on the base 42, namely the elastic reset structure comprises a spring 48, a connecting block 47 and a sleeve 46 which are installed in an installation channel 421 of the base 42, a plug 49 is fixed on the lower port of the installation channel 421 through bolts, two ends of the spring 48 are respectively connected with the plug 49 and the connecting block 47, the sleeve 46 is fixed on the top surface of the connecting block 47, the upper end of the spring 48 is fixedly connected with a jacking block 45, the spring 48 is compressed during punching, and the spring 48 stretches to jack the jacking block 45 during resetting. The forming cavity of the pre-punching die 44 is internally provided with a top block 45, an elastic reset structure is connected with the top block 45, the forming cavity appearance of the pre-punching die 44 and the appearance of the pre-punching punch 41 are consistent with the appearance of the central piece 105 of the first rotor core piece 101, after the appearance of the first rotor core piece 101 is formed on a strip, the outer edge of the central piece 105 of the first rotor core piece 101 which is formed on the strip in a preliminary mode can be punched by the pre-punching punch, the pre-punching punch is reset and lifted after the punching is downwards moved, then the top block 45 is upwards moved under the action of the elastic reset structure, the punched central piece 105 is pushed back into the central hole of the outer ring 106 and is tightly matched with the central hole, and then the first rotor core piece 101 with the central hole is conveyed to the blanking station 5 in the step-by-step displacement process of the strip, and separation marks between the central piece 105 and the outer ring 106 are formed.
The top ends of the forming male die 10, the first blanking male die 13, the second blanking male die 14, the third blanking male die 23, the fourth blanking male die 24 and the pre-punching male die are provided with movable drawing plates which can be driven by an air cylinder or an oil cylinder.
Based on above-mentioned station arrangement structure, its theory of operation:
and a first rotor core piece 101 forming step, namely moving a movable drawing plate away from the top ends of the third blanking punch 23 and the fourth blanking punch 24 to enable the forming ends of the third blanking punch 23 and the fourth blanking punch 24 to retract, wherein the movable drawing plate is abutted against the top ends of the first blanking punch 13, the second blanking punch 14 and the pre-blanking punch 41 to enable the forming ends of the first blanking punch 13, the second blanking punch 14 and the pre-blanking punch 41 to keep an extending state, then forming ten concave magnetic steel grooves 103, through holes, shaft holes and separation marks on a strip in sequence, and finally blanking to form the bottommost first rotor core piece 101, wherein the through hole forming of the bottommost first rotor core piece 101 is achieved when the movable drawing plate is abutted against the top ends of the forming punches 10 of the punching sheet station 7 to enable the forming punches 10 to keep an extending state, and when the second first rotor core piece 101 is formed, the movable drawing plate is abutted against the top ends of the forming punches 10 of the punching sheet station 7 to enable the forming punches 10 of the punching sheet station 7 to retract, and finally forming a buckling point after the second blanking core piece first rotor core piece passes through the bottommost rotor core piece 101 to be formed with the bottommost rotor core piece 101.
And a second rotor core piece 102 forming step, moving the movable drawing plate away from the top ends of the first blanking punch 13, the second blanking punch 14 and the pre-blanking punch 41 to enable the forming ends of the first blanking punch 13, the second blanking punch 14 and the pre-blanking punch 41 to retract, wherein the movable drawing plate is abutted against the top ends of the third blanking punch 23 and the fourth blanking punch 24 to enable the forming ends of the third blanking punch 23 and the fourth blanking punch 24 to keep an extending state, the movable drawing plate is away from the top end of the forming punch 10 of the punching sheet station 7 to enable the forming punch 10 of the punching sheet station 7 to retract, then sequentially forming ten trapezoid magnetic steel grooves 104, buckling points and shaft holes on a strip, finally blanking to form a first rotor core piece 101, forming thirty-seven second rotor core pieces 102 according to the steps, buckling the first rotor core pieces 102 with the second rotor core pieces 101 through the buckling points, buckling the thirty-seven second rotor core pieces 102 with each other through the buckling points, and finally forming the laminated core 100.
The shaping device 9 comprises shaping punches 91 for expanding the magnetic steel grooves of the double-outer-diameter motor core and stripping the outer ring of the first rotor core piece 101 along the separation trace, and a fixing block 94, a cover plate 93, a core rod 92 and a pressing sleeve 95, wherein the shaping punches 91 are arranged in an N number and annular array, preferably, the number of the shaping punches 91 is consistent with the number of the magnetic steel grooves on the core, generally ten, the cross section of each shaping punch 91 is in an isosceles trapezoid structure, the shape of a trapezoid magnetic steel groove 104 is expanded in a matching manner, the shaping punches 91 are fixed on the cover plate 93 and penetrate through the fixing block 94, the core rod 92 is inserted into a shaft hole of the laminated core 100, the core rod 92 is fixed on the fixing block 94, the pressing sleeve 95 is sleeved at the end part of the core rod 92, the pressing sleeve 95 is pressed on the end face of the laminated core 100 and far away from the inner wall of the unexpanded magnetic steel groove, in the expansion process, then each shaping punch 91 corresponds to the positions of a plurality of trapezoid magnetic steel grooves 104 respectively, at the moment, the shaping punches 91 are punched and expanded trapezoid magnetic steel grooves 104 according to the positions of the trapezoid magnetic steel grooves 104 by using a press, and simultaneously the shaping punches 91 are punched and stripped 106 on the first rotor core piece 101.
The present utility model is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model, however, any change in shape or structure of the product is within the scope of the present utility model, and all the products having the same or similar technical solutions as the present application are included.
Claims (8)
1. The stamping structure for realizing the double-outer-diameter motor iron core is characterized in that the double-outer-diameter motor iron core is composed of a laminated iron core (100), the laminated iron core (100) is composed of two iron core sheets with different structures, wherein the two iron core sheets are respectively a first rotor iron core sheet (101) with N concave magnetic steel grooves (103) uniformly distributed inside and in a split structure and a second rotor iron core sheet (102) with N trapezoid magnetic steel grooves (104) uniformly distributed inside;
the stamping structure comprises a station arrangement structure for forming the iron core plate and a shaping device (9); the station arrangement structure comprises N magnetic steel groove punching stations which are sequentially arranged in the strip travelling direction, and a shaft hole punching station (3) which is positioned behind the last magnetic steel groove punching station, a rotor pre-punching station (4) which is used for generating separation marks between a center sheet (105) of a first rotor iron chip (101) and an outer ring (106) and a blanking station (5) which is used for forming the first rotor iron chip (101) and a second rotor iron chip (102);
the shaping device (9) comprises shaping convex dies (91) which expand magnetic steel grooves of the double-outer-diameter motor iron core and enable the outer ring of the first rotor iron core (101) to be stripped along separation marks, and the shaping convex dies (91) are arranged in an annular array and are N in number.
2. The stamping structure for realizing the double-outer-diameter motor iron core according to claim 1, wherein the N magnetic steel groove stamping stations respectively comprise a first concave magnetic steel groove stamping station (11) and a second concave magnetic steel groove stamping station (12) which are sequentially arranged in the travelling direction of a strip, the first concave magnetic steel groove stamping station (11) and the second concave magnetic steel groove stamping station (12) are on the same horizontal axis and are correspondingly parallel, and the diameter of an annular central line arranged on the first concave magnetic steel groove stamping station (11) around the central axis of the first concave magnetic steel groove stamping station is consistent with the diameter of an annular central line arranged on the second concave magnetic steel groove stamping station (12) around the central axis of the second concave magnetic steel groove stamping station; a plurality of first blanking punches (13) with concave cross sections are annularly and uniformly distributed on the annular central line of the first concave magnetic steel groove punching station (11), a plurality of second blanking punches (14) with concave cross sections are annularly and uniformly distributed on the annular central line of the second concave magnetic steel groove punching station (12), and the first blanking punches (13) and the second blanking punches (14) are arranged in a staggered mode.
3. The stamping structure for realizing the double-outer-diameter motor core according to claim 2, wherein the N stamping magnetic steel groove stations respectively comprise a first stamping trapezoidal magnetic steel groove station (21) positioned behind the second stamping concave magnetic steel groove station (12) and a second stamping trapezoidal magnetic steel groove station (22) positioned behind the first stamping trapezoidal magnetic steel groove station (21), the first stamping trapezoidal magnetic steel groove station (21) and the second stamping trapezoidal magnetic steel groove station (22) are on the same horizontal axis, the central axes of the first stamping trapezoidal magnetic steel groove station and the second stamping trapezoidal magnetic steel groove station are correspondingly parallel, and the diameter of an annular central line arranged on the first stamping trapezoidal magnetic steel groove station (21) around the central axis of the first stamping trapezoidal magnetic steel groove station is consistent with the diameter of an annular central line arranged on the second stamping trapezoidal magnetic steel groove station (22) around the central axis of the second stamping trapezoidal magnetic steel groove station; a plurality of third blanking punches (23) with trapezoid cross sections are uniformly distributed on the annular central line of the first trapezoid punching magnetic steel groove station (21), a plurality of fourth blanking punches (24) with trapezoid cross sections are uniformly distributed on the annular central line of the second trapezoid punching magnetic steel groove station (22), and the third blanking punches (23) and the fourth blanking punches (24) are arranged in a staggered mode.
4. The stamping structure for realizing the double-outer-diameter motor core according to claim 3 is characterized in that a punching guide hole station (6), a punching sheet station (7) and a punching point station (8) are further arranged in the traveling direction of the strip, the punching guide hole station (6) is arranged in front of the first concave magnetic steel groove stamping station (11), the punching sheet station (7) and the punching point station (8) are arranged between the second trapezoid magnetic steel groove stamping station (22) and the shaft hole stamping station (3), and the punching guide hole station (6), the punching sheet station (7) and the punching point station (8) all comprise forming male dies (10).
5. The stamping structure for realizing the double-outer-diameter motor core according to claim 4, wherein the rotor pre-stamping station (4) comprises a base (42), a pre-stamping die (44) and a pre-stamping die (41), the pre-stamping die (41) is correspondingly positioned above the pre-stamping die (44), the pre-stamping die (44) is arranged on the top surface of the base (42), an elastic reset structure is arranged on the base (42), a top block (45) is arranged in a forming cavity of the pre-stamping die (44), the elastic reset structure is connected with the top block (45), and the appearance of the forming cavity of the pre-stamping die (44) and the appearance of the pre-stamping die (41) are consistent with the appearance of a central sheet (105) of the first rotor core piece (101).
6. The stamping structure for realizing the double-outer-diameter motor core according to claim 1, wherein the cross section of the shaping punch (91) is in an isosceles trapezoid structure.
7. The stamping structure for realizing the double-outer-diameter motor core according to claim 5, wherein movable drawing plates are arranged at the top ends of the forming male die (10), the first blanking male die (13), the second blanking male die (14), the third blanking male die (23), the fourth blanking male die (24) and the pre-stamping male die.
8. The stamping structure for realizing the double-outer-diameter motor core according to claim 1, wherein the shaping device (9) further comprises a fixed block (94), a cover plate (93), a core rod (92) and a pressing sleeve (95), the shaping male die (91) is fixed on the cover plate (93) and penetrates through the fixed block (94), the core rod (92) is fixed on the fixed block (94), and the pressing sleeve (95) is sleeved on the end portion of the core rod (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681719.7U CN219458860U (en) | 2023-06-29 | 2023-06-29 | Stamping structure for realizing double-outer-diameter motor iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321681719.7U CN219458860U (en) | 2023-06-29 | 2023-06-29 | Stamping structure for realizing double-outer-diameter motor iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219458860U true CN219458860U (en) | 2023-08-01 |
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ID=87384379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321681719.7U Active CN219458860U (en) | 2023-06-29 | 2023-06-29 | Stamping structure for realizing double-outer-diameter motor iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219458860U (en) |
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2023
- 2023-06-29 CN CN202321681719.7U patent/CN219458860U/en active Active
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