CN111001705A - Stamping progressive die for three-piece combined jacking of motor stator and rotor iron cores - Google Patents
Stamping progressive die for three-piece combined jacking of motor stator and rotor iron cores Download PDFInfo
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- CN111001705A CN111001705A CN201911199217.9A CN201911199217A CN111001705A CN 111001705 A CN111001705 A CN 111001705A CN 201911199217 A CN201911199217 A CN 201911199217A CN 111001705 A CN111001705 A CN 111001705A
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- 230000000750 progressive effect Effects 0.000 title claims abstract description 46
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 13
- 238000004080 punching Methods 0.000 claims abstract description 101
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 description 10
- 238000004804 winding Methods 0.000 description 8
- 229910000976 Electrical steel Inorganic materials 0.000 description 5
- 238000011084 recovery Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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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
- 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
- B21D43/20—Storage arrangements; Piling or unpiling
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Abstract
The invention discloses a punching progressive die for three combined trepanning of a motor stator and rotor core, which comprises a group of guide dies, a rotor core blanking area, a stator inner core blanking area and a stator outer ring blanking area, wherein the rotor core blanking area, the stator inner core blanking area and the stator outer ring blanking area are sequentially arranged according to a punching sequence; in the first blanking station to the thirteenth blanking station, except that the twelfth blanking station is a blank station, each of the rest blanking stations is provided with one or more blanking dies, each blanking die comprises a female die and a male die, and the actions and strokes of the male dies for realizing stamping lifting are respectively and independently controlled through cylinders. The invention has the advantages of high material utilization rate, good adaptability and high production efficiency.
Description
Technical Field
The invention relates to the field of motor iron core manufacturing, in particular to a stamping progressive die for three-piece combined jacking of a motor stator and rotor iron core.
Background
The motor core is a core component of the motor and is used for increasing the magnetic flux of the inductance coil so as to realize the maximum conversion of electromagnetic power. The motor core generally includes a stator core and a rotor core.
In the prior art, a stator core of a motor is generally formed by laminating annular silicon steel sheets, and a plurality of uniformly distributed winding slots are punched in the inner circle of the silicon steel sheets along the circumferential direction. The problems with this conventional stator core are: firstly, the stator core is of an integrated structure, so that the winding is difficult and the production efficiency is low; secondly, the difficulty of winding also reduces the slot fill rate of the winding, resulting in reduced motor performance.
For this reason, an inside-outside assembly type motor stator core has been developed, which is composed of an inner core body 40 and an outer ring body 41 in fig. 6, wherein the inner core body is assembled in the outer ring body. The inner and outer assembled motor stator core can be assembled after winding, so that the winding is more convenient, the slot fullness rate after winding is higher, and the winding efficiency and the motor performance can be improved. The rotor part matched with the stator core of the internal and external assembled motor comprises a rotor core 39 as shown in fig. 6, and magnetic steel bars (the magnetic steel bars are not shown in fig. 6) are arranged on the outer circle of the rotor core 39 at intervals. The inner core body, the outer ring body and the rotor core are all formed by stamping and laminating silicon steel sheets. Wherein, in order to improve the direction of motor magnetic circuit, reduce the magnetic circuit loss, improve the silicon steel sheet of the inner core body of structure and be stamped into two kinds of forms: the whole inner core body with the whole circle structure and the inner core body scattered pieces with the adjacent tooth parts separated are overlapped with a plurality of layers of inner core body scattered pieces between every two whole circle inner core body pieces when the silicon steel sheets are laminated, so that the hollow structure 42 shown in figure 7 is formed on the inner core body.
In addition, under the condition that the main specification of the motor is determined, the sizes of the inner core bodies in the rotor core and the stator core are kept unchanged, but the design of the circumferential circular holes and the rivet overlapping holes distributed on the outer ring body of the stator core has different modified designs according to different use occasions.
The newly developed stator and rotor cores of the motor have the following problems if the conventional punching die is adopted for punching: firstly, the utilization rate of the material is low; secondly, the mold has poor universality and cannot meet the requirement of the deformation design of the circumferential round hole and the rivet overlapping hole on the outer ring body; thirdly, the components are required to be respectively stacked after being punched, and the production efficiency is relatively low. In addition, because the inner core body has two forms of an integral sheet structure and a scattered sheet structure, the integral sheet of the inner core body and the scattered sheet of the inner core body need to be punched by different dies, and the stacking after punching is troublesome.
Disclosure of Invention
In order to solve the problems, the invention provides a stamping progressive die for three-piece combined jacking of a motor stator and rotor iron core, aiming at improving the material utilization rate, improving the adaptability of the die to the deformation design of a circumferential round hole and a riveting hole on an outer ring body and improving the production efficiency. The specific technical scheme is as follows:
a stamping progressive die for three combined trepanning of motor stator and rotor cores comprises a progressive die main body consisting of an upper die assembly and a lower die assembly, wherein a group of guiding dies for stamping guiding holes in a material strip, a rotor core blanking area and two stator core blanking areas are arranged on the progressive die main body in sequence according to a stamping sequence, the two stator core blanking areas are a stator inner core blanking area and a stator outer ring blanking area in sequence, a first blanking station, a second blanking station and a fourth blanking station are sequentially arranged on the rotor core blanking area, a fifth blanking station, a second blanking station and a seventh blanking station are sequentially arranged on the stator inner core blanking area, and an eighth blanking station, a third blanking station and a thirteenth blanking station are sequentially arranged on the stator outer ring blanking area; in the first to thirteenth blanking stations, except that the twelfth blanking station is a blank station, one or more blanking dies are respectively arranged on each of the rest blanking stations, each blanking die comprises a female die arranged on the lower die assembly and a male die arranged on the upper die assembly, and the actions and strokes of the male dies for realizing the lifting and descending of the stamping are respectively and independently controlled through cylinders.
According to the technical scheme, the punching progressive die adopts a three-piece combined nesting blanking mode, so that the rotor core, the stator inner core body and the stator outer ring body are completed in a pair of progressive dies through nesting blanking, the utilization rate of materials is improved, and the blanking efficiency is high.
In the technical scheme, six stations are arranged on the blanking area of the outer stator ring body in total, and eighth to tenth blanking stations are used for blanking circumferential round holes and overlapped riveting holes of different specifications on the outer ring body, so that the adaptability of the die to the deformation design of the circumferential round holes and the overlapped riveting holes on the outer ring body is improved.
Because the lifting of the male die is independently controlled by the air cylinder, the control system of the progressive die can control whether the air cylinder acts to determine whether the station needs to punch or not during punching. Due to the fact that the control system is used for controlling, punching holes in the eighth blanking station to the tenth blanking station can be used in a combined mode, and therefore flexibility of the die is further improved.
The specific setting mode of the blanking die on each blanking station is as follows:
the rotor core punching die comprises a rotor core punching area, and is characterized in that a first station circumferential round hole punching die and a second station circumferential round hole punching die which are arranged at different distribution positions are respectively arranged on a first punching station and a second punching station, a rotor spline inner hole punching die is arranged on a third punching station, and a rotor blanking punching die is arranged on a fourth punching station.
Preferably, the second blanking station is further provided with an inner hole marking groove pre-blanking die for the stator inner core body.
And on the stator inner core body blanking area, an inner core body overlapped riveting hole blanking die and an inner core body segmentation blanking die are respectively arranged on the fifth blanking station, an inner core body inner hole blanking die is arranged on the sixth blanking station, and an inner core body blanking die is arranged on the seventh blanking station.
The male die of the inner core body division blanking die is controlled by the air cylinder to perform stamping action or not so as to determine whether the inner core body is made into a whole piece or a scattered piece. For example, the control system of the progressive die can select to punch one whole inner core body and then continuously punch a plurality of scattered inner core body sheets to form an alternate cycle of blanking of the whole inner core body sheets and blanking of the scattered inner core body sheets, so that a hollow structure is formed on the stacked inner core bodies, and the performance of the magnetic circuit is improved.
In the stator outer ring body blanking area, eighth station circumferential round hole blanking dies, ninth station outer ring body overlapping riveting hole blanking dies, tenth station circumferential round hole blanking dies and tenth station outer ring body overlapping riveting hole blanking dies which are different in distribution position or different in specification are respectively arranged on the eighth blanking station to the tenth blanking station, an outer ring body inner hole blanking die is arranged on the eleventh blanking station, and an outer ring body blanking die is arranged on the thirteenth blanking station.
As a further optimization of the present invention, a fourteenth blanking station is further provided after the thirteenth blanking station, and the fourteenth blanking station is provided with an edge scrap cutting and blanking die.
The blanking die is cut off through setting up the limit waste material, and the material area waste material after the blanking is cut into the piece, is favorable to the recovery of waste material.
As a further improvement of the invention, an automatic rotor stacking module is arranged below the blanking die of the rotor blanking at the fourth blanking station.
The automatic rotor stacking module adopts an interference fit stacking module, and specifically, a tightening sleeve is arranged on the stacking module, and an inner hole of the tightening sleeve is in interference fit with the excircle of the rotor.
Preferably, an inner core body automatic stacking module is arranged below the inner core body blanking die on the seventh blanking station.
The automatic inner core body stacking module is provided with an inner core body stacking hole matched with the shape of the inner core body, a numerical control electric push rod is arranged below the inner core body stacking hole, the numerical control electric push rod upwards pushes against the punching sheet, and the numerical control electric push rod automatically moves downwards by the thickness of one punching sheet when each punching sheet is punched.
Preferably, an outer ring body automatic stacking module is arranged below the outer ring body blanking and blanking die on the thirteenth blanking station.
The automatic outer ring body stacking module is provided with an outer ring body stacking hole matched with the outer ring body in shape, a numerical control electric push rod is arranged below the outer ring body stacking hole and upwards propped against the punching sheet, and the numerical control electric push rod automatically moves downwards by the thickness of one punching sheet when each punching sheet is punched.
In addition, the automatic rotor stacking module, the automatic inner core stacking module and the automatic outer ring stacking module are respectively provided with a lateral pushing device so as to transfer the stacked iron cores into a material box.
The automatic overlapping modules are respectively arranged on the fourth blanking station, the seventh blanking station and the thirteenth blanking station, so that the rotor core, the stator inner core body and the stator outer ring body can be automatically blanked and overlapped in a pair of progressive dies, the automation degree is high, and the production efficiency is improved.
In addition, due to the fact that the progressive die realizes the blanking combination of the whole inner core body and the scattered inner core body, the whole inner core body and the scattered inner core body can be automatically stacked through the automatic stacking module of the inner core body after blanking, a hollow structure which improves the direction of a motor magnetic circuit and reduces the loss of the magnetic circuit is formed on the stacked stator inner core body, and therefore the automatic and efficient production of the blanking and stacking integration of the high-performance stator inner core body is achieved.
The invention has the beneficial effects that:
first, the punching progressive die for the three-piece combined trepanning of the motor stator and rotor core adopts a three-piece combined trepanning blanking mode, so that the rotor core, the stator inner core body and the stator outer ring body are completed in a pair of progressive dies through trepanning blanking, the utilization rate of materials is improved, and the blanking efficiency is high.
Secondly, the punching progressive die for the three-piece combined jacking of the motor stator and rotor iron core is provided with six stations on the punching area of the outer ring body of the stator in total, wherein the eighth punching station to the tenth punching station are used for punching circumferential round holes and overlapped riveting holes of different specifications on the outer ring body, so that the adaptability of the die to the deformation design of the circumferential round holes and the overlapped riveting holes on the outer ring body is improved.
Thirdly, the lifting of the male die of the progressive die is independently controlled by the cylinder, and the control system of the progressive die can control whether the cylinder acts to determine whether the station needs to punch or not during punching. Due to the fact that the control system is used for controlling, punching holes in the eighth blanking station to the tenth blanking station can be used in a combined mode, and therefore flexibility of the die is further improved.
Fourthly, the punch of the inner core body cutting and blanking die is independently controlled by the air cylinder to perform punching action or not so as to determine whether the inner core body is made into a whole piece or a scattered piece. For example, the control system of the progressive die can select to punch one whole inner core body and then continuously punch a plurality of scattered inner core body sheets to form an alternate cycle of blanking of the whole inner core body sheets and blanking of the scattered inner core body sheets, so that a hollow structure is formed on the stacked inner core bodies, and the performance of the magnetic circuit is improved.
Fifthly, according to the stamping progressive die for the three-piece combined jacking of the motor stator and rotor iron core, the edge waste cutting and blanking die is arranged, and the material belt waste after blanking is cut into pieces, so that the recovery of the waste is facilitated.
Sixthly, according to the stamping progressive die for the three-piece combined jacking of the motor stator and rotor core, the automatic overlapping modules are respectively arranged on the fourth blanking station, the seventh blanking station and the thirteenth blanking station, so that the rotor core, the stator inner core body and the stator outer ring body are automatically blanked and overlapped in a pair of progressive dies at the same time, the automation degree is high, and the production efficiency is improved.
Seventh, the punching progressive die for the three-piece combined jacking of the motor stator and rotor iron core realizes the punching combination of the whole inner core body and the scattered inner core body, the whole punched inner core body and the scattered inner core body can be automatically stacked through the automatic stacking module of the inner core body, and a hollow structure for improving the direction of a motor magnetic circuit and reducing the loss of the magnetic circuit is formed on the stacked stator inner core body, so that the punching and stacking integrated automatic high-efficiency production of the high-performance stator inner core body is realized.
Drawings
FIG. 1 is a schematic structural view of a progressive stamping die (lower die assembly part) for three-piece combined nesting of a stator and rotor core of an electric motor according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a blanking die layout of the progressive die;
FIG. 4 is a partial enlarged view (left half) of FIG. 3;
fig. 5 is a partial enlarged view (right half) of fig. 3;
FIG. 6 is a schematic view of a rotor core, an inner core, and an outer ring of a stator and rotor core of a motor;
fig. 7 is a partial three-dimensional structural view of the core body in fig. 6.
In the figure: 1. a first blanking station, 2, a second blanking station, 3, a third blanking station, 4, a fourth blanking station, 5, a fifth blanking station, 6, a sixth blanking station, 7, a seventh blanking station, 8, an eighth blanking station, 9, a ninth blanking station, 10, a tenth blanking station, 11, an eleventh blanking station, 12, a twelfth blanking station, 13, a thirteenth blanking station, 14, a fourteenth blanking station, 15, a guide die, 16, a rotor core blanking region, 17, a stator core blanking region, 18, a stator outer ring blanking region, 19, a first station circumferential round hole blanking die, 20, a second station circumferential round hole blanking die, 21, a spline rotor inner hole blanking die, 22, a rotor blanking die, 23, an inner hole mark groove pre-blanking die, 24, an inner core lamination hole blanking die, 25, an inner core segmentation blanking die, 26, a spline rotor inner hole blanking die, 23, an inner hole mark groove pre-blanking die, 24, an inner core lamination hole blanking die, 25, the inner core body punching die comprises an inner core body inner hole punching die, 27, an inner core body blanking die, 28, an eighth station circumferential round hole punching die, 29, a ninth station circumferential round hole punching die, 30, a ninth station outer ring body overlapped riveting hole punching die, 31, a tenth station circumferential round hole punching die, 32, a tenth station outer ring body overlapped riveting hole punching die, 33, an outer ring body inner hole punching die, 34, an outer ring body blanking die, 35, an edge waste cutting and punching die, 36, a rotor automatic overlapping module, 37, an inner core body automatic overlapping module, 38, an outer ring body automatic overlapping module, 39, a rotor iron core, 40, an inner core body, 41, an outer ring body, 42 and hollow out.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 7, an embodiment of a progressive die for punching three-piece combined trepanning of a stator core and a rotor core of a motor according to the present invention includes a progressive die body composed of an upper die assembly and a lower die assembly, the progressive die main body is provided with a group of guide dies 15 for punching guide holes on the material strip, a rotor core blanking area 16 and two stator core blanking areas which are sequentially arranged according to the punching sequence, the two stator core blanking areas are a stator inner core body blanking area 17 and a stator outer ring body blanking area 18 in sequence, a first blanking station 1 to a fourth blanking station 4 are sequentially arranged on the rotor core blanking area 16, a fifth blanking station 5 to a seventh blanking station 7 are sequentially arranged on the stator core body blanking area 17, an eighth blanking station 8-a thirteenth blanking station 13 are sequentially arranged on the blanking area 18 of the outer ring body of the stator; in the first to thirteenth blanking stations 1 to 13, except that the twelfth blanking station 12 is a blank station, each of the rest blanking stations is provided with one or more blanking dies, each of the blanking dies comprises a female die arranged on the lower die assembly and a male die arranged on the upper die assembly, and the actions and strokes of the male dies for realizing the lifting and lowering of the stamping are respectively and independently controlled by cylinders.
In the technical scheme, the punching progressive die adopts a three-piece combined nesting blanking mode, so that the rotor core 39, the stator inner core body 40 and the stator outer ring body 41 are completed in a pair of progressive dies through nesting blanking, the utilization rate of materials is improved, and the blanking efficiency is higher.
In the technical scheme, six stations are arranged on the blanking area 18 of the outer stator ring body in total, wherein the eighth blanking station 8-the tenth blanking station 10 are used for blanking circumferential round holes and overlapped riveting holes with different specifications on the outer ring body 41, so that the adaptability of the die to the deformation design of the circumferential round holes and the overlapped riveting holes on the outer ring body is improved.
Because the lifting of the male die in the embodiment is independently controlled by the air cylinder, the control system of the progressive die can control whether the air cylinder acts to determine whether the station needs to punch or not during punching. Due to the fact that the control system is used for controlling, punching holes in the eighth blanking station 8-the tenth blanking station 10 can be used in a combined mode, and therefore flexibility of the die is further improved.
The specific setting mode of the blanking die on each blanking station is as follows:
on the rotor core blanking area 16, a first station circumferential round hole blanking die 19 and a second station circumferential round hole blanking die 20 which are arranged at different distribution positions are respectively arranged on the first blanking station 1 and the second blanking station 2, a rotor spline inner hole blanking die 21 is arranged on the third blanking station 3, and a rotor blanking die 22 is arranged on the fourth blanking station 4.
Preferably, the second blanking station 2 is further provided with an inner hole marking groove pre-blanking die 23 for the stator core body.
On the stator core blanking area 17, an inner core laminated riveting hole blanking die 24 and an inner core dividing blanking die 25 are respectively arranged on the fifth blanking station 5, an inner core inner hole blanking die 26 is arranged on the sixth blanking station 6, and an inner core blanking die 27 is arranged on the seventh blanking station 7.
The punch of the core body dividing and punching die 25 is controlled by the cylinder alone to perform the punching operation or not, so as to determine whether the core body 40 is made into an integral piece or a loose piece. For example, the control system of the progressive die may select to punch one whole core 40 and then continuously punch several loose cores 40, so as to form an alternating cycle of the whole punching of the core 40 and the loose punching of the core 40, so that the hollow 42 structure is formed on the stacked core 40, thereby improving the performance of the magnetic circuit.
In the stator outer ring blanking area 18, eighth station circumferential circular hole blanking dies 28, ninth station circumferential circular hole blanking dies 29, ninth station outer ring body rivet overlapping hole blanking dies 30, tenth station circumferential circular hole blanking dies 31 and tenth station outer ring body rivet overlapping hole blanking dies 32 which are arranged at different distribution positions or in different specifications are respectively arranged on the eighth blanking station 8 to the tenth blanking station 10, an outer ring body inner hole blanking die 33 is arranged on the eleventh blanking station 11, and an outer ring body blanking die 34 is arranged on the thirteenth blanking station 13.
As a further optimization of the present embodiment, a fourteenth blanking station 14 is further provided after the thirteenth blanking station 13, and the fourteenth blanking station 14 is provided with an edge scrap cutting and blanking die 35.
Above-mentioned through setting up the limit waste material and cutting off blanking die 35, the material area waste material after the blanking is cut into the piece, is favorable to the recovery of waste material.
As a further improvement of this embodiment, an automatic rotor stacking module 36 is disposed below the blanking die 22 in the fourth blanking station 4.
The automatic rotor stacking module 36 adopts an interference fit stacking module, specifically, a tightening sleeve is arranged on the stacking module, and an inner hole of the tightening sleeve is in interference fit with an outer circle of the rotor.
Preferably, an inner core automatic stacking module 37 is provided at the seventh blanking station 7 below the inner core blanking die 27.
The automatic inner core body stacking module 37 is provided with an inner core body stacking hole matched with the inner core body 40 in shape, a numerical control electric push rod is arranged below the inner core body stacking hole, the numerical control electric push rod upwards pushes against the punching sheet, and the numerical control electric push rod automatically moves downwards by the thickness of one punching sheet when each punching sheet is punched.
Preferably, an outer ring body automatic stacking module 38 is disposed below the outer ring body blanking die 34 in the thirteenth blanking station 13.
The outer ring body stacking module 38 is provided with an outer ring body stacking hole matched with the outer ring body 41 in shape, a numerical control electric push rod is arranged below the outer ring body stacking hole, the numerical control electric push rod is upwards propped against the punching sheet, and the numerical control electric push rod automatically moves downwards by the thickness of one punching sheet when each punching sheet is punched.
In addition, the automatic rotor stacking module 36, the automatic inner core stacking module 37 and the automatic outer core stacking module 38 are further provided with lateral pushing devices respectively, so as to transfer the stacked iron cores into a material box.
The automatic overlapping modules are respectively arranged on the fourth blanking station 4, the seventh blanking station 7 and the thirteenth blanking station 13, so that the rotor core 39, the stator core body 40 and the stator outer ring body 41 can be automatically blanked and overlapped in a pair of progressive dies, the automation degree is high, and the production efficiency is improved.
In addition, because the progressive die realizes the blanking combination of the whole inner core body 40 and the scattered inner core body 40, the whole inner core body 40 and the scattered inner core body 40 can be automatically stacked through the automatic stacking module 37 of the inner core body after being blanked, and a hollow-out 42 structure which improves the direction of a motor magnetic circuit and reduces the loss of the magnetic circuit is formed on the stacked stator inner core body 40, thereby realizing the automatic and efficient production of the blanking and stacking integration of the high-performance stator inner core body 40.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A stamping progressive die for three combined trepanning of motor stator and rotor cores is characterized by comprising a progressive die main body consisting of an upper die assembly and a lower die assembly, wherein a group of guide dies for stamping guide holes in a material strip, a rotor core blanking area and two stator core blanking areas are arranged on the progressive die main body in sequence according to a stamping sequence; in the first to thirteenth blanking stations, except that the twelfth blanking station is a blank station, one or more blanking dies are respectively arranged on each of the rest blanking stations, each blanking die comprises a female die arranged on the lower die assembly and a male die arranged on the upper die assembly, and the actions and strokes of the male dies for realizing the lifting and descending of the stamping are respectively and independently controlled through cylinders.
2. The progressive die for punching three combined trepanning of motor stator and rotor cores according to claim 1, wherein a first station circumferential circular hole punching die and a second station circumferential circular hole punching die which are distributed at different positions are respectively arranged on the first punching station and the second punching station of the rotor core punching area, a rotor spline inner hole punching die is arranged on the third punching station, and a rotor blanking punching die is arranged on the fourth punching station.
3. The progressive die for punching a three-piece combined trepanning of a stator core and a rotor core of an electric machine according to claim 2, wherein the second punching station is further provided with an inner hole marking slot pre-punching die for a stator inner core body.
4. The progressive die for punching three combined trepanning of stator and rotor iron cores of an electric machine according to claim 1, wherein an inner core laminated riveting hole punching die and an inner core splitting punching die are respectively arranged on the fifth punching station of the stator and inner core punching region, an inner core inner hole punching die is arranged on the sixth punching station, and an inner core blanking punching die is arranged on the seventh punching station.
5. The progressive die for punching three combined trepanning of iron cores of stators and rotors of electric machines according to claim 1, wherein the eighth to tenth punching stations are respectively provided with an eighth station circumferential circular hole punching die, a ninth station outer ring overlapped riveting hole punching die, a tenth station circumferential circular hole punching die and a tenth station outer ring overlapped riveting hole punching die with different distribution positions or different specifications in the stator outer ring punching area, the eleventh punching station is provided with an outer ring inner hole punching die, and the thirteenth punching station is provided with an outer ring blanking die.
6. The progressive die for punching three combined trepanning of motor stator and rotor cores according to claim 1, wherein a fourteenth punching station is further arranged after the thirteenth punching station, and an edge scrap cutting and punching die is arranged on the fourteenth punching station.
7. The progressive die for punching three-piece combined trepanning of motor stator and rotor cores according to claim 1, wherein a rotor automatic stacking module is arranged below the rotor blanking die at the fourth blanking station.
8. The progressive die for punching three-piece combined trepanning of motor stator and rotor cores according to claim 1, wherein an inner core automatic stacking module is arranged below the inner core blanking die at the seventh blanking station.
9. The progressive die for punching three-piece combined nesting of stator and rotor cores of an electric machine as recited in claim 1, wherein an outer ring body automatic stacking module is disposed below said outer ring body blanking die at said thirteenth blanking station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911199217.9A CN111001705A (en) | 2019-11-29 | 2019-11-29 | Stamping progressive die for three-piece combined jacking of motor stator and rotor iron cores |
Applications Claiming Priority (1)
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| CN111889562A (en) * | 2020-07-14 | 2020-11-06 | 安徽晶赛科技股份有限公司 | Punching die and punching method suitable for 3225 and 2016 kovar rings |
| CN114189114A (en) * | 2022-02-14 | 2022-03-15 | 宁波震裕科技股份有限公司 | Iron core manufacturing process of motor for new energy automobile |
| CN117791987A (en) * | 2024-02-27 | 2024-03-29 | 宁波震裕科技股份有限公司 | High-speed production method of laminated iron core of motor |
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