CN119401747B - Manufacturing method of chain type straight iron core - Google Patents
Manufacturing method of chain type straight iron coreInfo
- Publication number
- CN119401747B CN119401747B CN202411671197.1A CN202411671197A CN119401747B CN 119401747 B CN119401747 B CN 119401747B CN 202411671197 A CN202411671197 A CN 202411671197A CN 119401747 B CN119401747 B CN 119401747B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/021—Magnetic cores
- H02K15/026—Wound cores
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
本发明所公开的一种链式直条铁芯的制造方法，两个第一分割外形孔错位成型或者两个第二分割外形孔错位成型，使得条料上两处长形落料孔错位分布，并且两处长形落料孔的各凸部相互错位布置，使得两个落料通道处直列铁芯组的各薄板的齿部在条料的相邻及错位区域成型，从而减少了条料的原材料的浪费。
The present invention discloses a method for manufacturing a chain-type straight iron core, in which two first segmented outer shape holes are staggered or two second segmented outer shape holes are staggered, so that two elongated blanking holes on the strip are staggered, and the convex portions of the two elongated blanking holes are staggered with each other, so that the teeth of each thin plate of the in-line iron core group at the two blanking channels are formed in adjacent and staggered areas of the strip, thereby reducing the waste of raw materials of the strip.
Description
Technical Field
The invention relates to the technical field of laminated iron cores of new energy automobile motors, in particular to a manufacturing method of a chained straight iron core.
Background
The stator core is an important component for forming a magnetic flux loop of the motor and fixing the stator coil, so that the performance requirement on the stator core is higher, and the stator core is also an important component of the new energy automobile motor, however, the traditional stator core is formed by laminating a plurality of layers of complete laminations, but the traditional stator core wastes a lot of raw materials during manufacturing, so that the production cost is increased, the formed stator core cannot be unfolded, the inner wall detection and tooth automatic winding of the stator core are difficult, insufficient winding number or too many winding number or disordered winding number often occur, the winding efficiency is lower, and meanwhile, the detection is inaccurate, so that the defective products after shipment are more returned.
Accordingly, based on the foregoing, there is an urgent need for a method of manufacturing a chain type straight iron core that overcomes the above-described drawbacks.
Disclosure of Invention
The invention discloses a manufacturing method of a chain type straight iron core, which aims to solve the technical problems.
The invention relates to a manufacturing method of a chained straight iron core, which comprises the following steps:
The strip is continuously and stepwise blanked and formed into two first end holes, four second end holes and a plurality of groups of first forming groups or second forming groups which are distributed at intervals along the length direction of the forming area of the strip in a continuous and stepwise manner, the two first end holes are positioned at the first end or the second end of the forming area of the strip, the four second end holes are distributed at two ends of the forming area of the strip in a group by group, the first forming groups comprise two first split contour holes which are adjacently arranged and distributed at intervals along the length direction of the forming area of the strip, and the second forming groups comprise two second split contour holes which are adjacently arranged and distributed at intervals along the length direction of the forming area of the strip;
punching a boundary hole on the inner end of each first split outline hole or the inner end of each second split outline hole, wherein each first split outline hole and each second split outline hole are respectively communicated with the corresponding boundary hole;
punching and forming groove-shaped holes communicated with the boundary holes at the two first split outline holes of each first forming group or the boundary holes at the two second split outline holes of each second forming group;
Punching a first split outline hole or a split protrusion on one side of the other first split outline hole of each first forming group at least once to form a rotary buckling point or a rotary through piece hole, or punching a second split outline hole or a split protrusion on one side of the other second split outline hole of each second forming group at least once to form a rotary buckling point or a rotary through piece hole;
And continuously blanking the part of each region for forming the thin plate, which does not form the thin plate appearance, so as to respectively blanking and form an in-line iron core group with rotary buckling points or rotary through-piece holes, which are arranged along the length direction of a forming region of the strip, in two blanking channels, and continuously forming and laminating the in-line iron core groups in each blanking channel to form a chain-type straight iron core, wherein the in-line iron core group comprises a plurality of thin plates which are arranged at intervals along the length direction of the in-line iron core group, and the thin plate ends of at least one adjacent two in-line iron core groups are rotationally connected through two adjacent rotary buckling points or rotationally connected through two adjacent rotary buckling points and rotary through-piece holes in the axial direction, each thin plate is formed by forming a first split appearance hole or a second split appearance hole, and forming a boundary hole and a groove-shaped hole, and the first end hole and the second end hole are used for forming the thin plate one end appearance of the end of the in-line iron core group.
According to the above-described method for manufacturing a chain-type bar core, the steps of forming the two first split profile holes of each first forming group are:
punching and forming a plurality of first contour holes which are distributed at intervals along the length direction of a forming zone in the forming zone arranged along the width of the strip;
punching and forming a plurality of first dividing holes which are distributed at intervals along the length direction of the forming area in a forming area arranged along the width of the strip, wherein each first shape hole is respectively positioned at the end parts of the plurality of first dividing holes and communicated with each other so as to form a first dividing shape hole;
a plurality of second external holes which are arranged at intervals along the length direction of the forming area are punched and formed in the forming area which is arranged on the strip material along the width of the strip material;
A plurality of second split holes are punched and formed in a forming area arranged on the strip along the width of the strip and are arranged at intervals along the length direction of the forming area, each second split hole is respectively positioned at the end parts of the plurality of second split holes and communicated with each other to form another first split outline hole, and the two first split outline holes are adjacent and staggered.
According to the above-described method for manufacturing a chain-type straight iron core, the steps of forming the two second split profile holes of each second forming group are:
Punching and forming a plurality of third contour holes which are distributed at intervals along the length direction of a forming zone in the forming zone arranged along the width of the strip;
Punching and forming a plurality of third split holes which are distributed at intervals along the length direction of the forming area in a forming area arranged along the width of the strip, wherein each third profile hole is respectively positioned at the end parts of the plurality of third split holes and communicated with each other so as to form a second split profile hole;
a plurality of fourth external holes which are arranged at intervals along the length direction of the forming area are punched and formed in the forming area which is arranged on the strip material along the width of the strip material;
A plurality of fourth dividing holes are punched and formed in a forming area arranged on the strip along the width of the forming area, the fourth dividing holes are arranged at intervals along the length direction of the forming area, the fourth outer shape holes are respectively positioned at the end parts of the fourth dividing holes and are mutually communicated, so that another second dividing outer shape hole is formed, and the two second dividing outer shape holes are adjacent and staggered.
According to the above-described method for manufacturing a chain-type bar core, the step of blanking the inner end of each first split profile hole to form the boundary hole is:
Punching and forming boundary holes communicated with the first dividing holes at the inner ends of the first dividing holes;
And blanking and forming boundary holes communicated with the second dividing holes at the inner ends of the second dividing holes.
According to the above-described method for manufacturing a chain-type straight iron core, the step of blanking the inner end of each second split profile hole to form the boundary hole is:
punching and forming boundary holes communicated with the third dividing holes at the inner ends of the third dividing holes;
and punching and forming boundary holes communicated with the inner ends of the fourth dividing holes.
According to the above-described method for manufacturing a chain-type straight iron core, at least one connecting buckle point is punched and formed in a forming region for each thin plate in a strip forming region, so that the thin plates in the axial direction of the chain-type straight iron core are connected by the connecting buckle points.
According to the above-described method for manufacturing a chain type straight bar iron core, at least one connecting piece hole is punched and formed in a forming region for each sheet in a forming region of a bar, and an in-line iron core group having connecting piece holes is located at an end portion of the chain type straight bar iron core;
The step of forming the connecting through chip holes and the step of forming the rotating through chip holes are combined into one step, or the step of forming the connecting through chip holes is an independent forming step.
According to the above-described method for manufacturing a chain type straight bar iron core, the adhesive is coated in the forming region of the bar material for each sheet forming region or in the forming region of the bar material so that the sheets are connected by the adhesive in the axial direction of the chain type straight bar iron core.
According to the manufacturing method of the chained straight iron core, when the ends of the thin plates of at least one two adjacent axially straight iron core groups are rotationally connected through the adjacent rotary buckling points and the rotary through holes, at least one straight iron core group with the rotary through holes or without the rotary through holes and the rotary buckling points is also connected on the surface of the straight iron core group with the rotary through holes in a lamination manner;
when the ends of the thin plates of at least one axially adjacent two straight iron core groups are rotationally connected through two adjacent rotary buckling points, the thin plates of each group of straight iron core groups in the chained straight iron core are provided with the rotary buckling points.
According to the manufacturing method of the chained straight iron core, the two blanking channels are far away from each other or are arranged in parallel;
The blanking die at one blanking channel is used for forming an in-line iron core group formed by the formation of a first dividing hole, a first outline hole, a first end hole, a second end hole, a boundary hole and a groove-shaped hole, or is used for forming an in-line iron core group formed by the formation of a third dividing hole, a third outline hole, a first end hole, a second end hole, a boundary hole and a groove-shaped hole;
The blanking female die at the other blanking channel is used for forming an in-line iron core group formed by the formation of a second split hole, a second external hole, a first end hole, a second end hole, a boundary hole and a groove-shaped hole, or forming an in-line iron core group formed by the formation of a fourth split hole, a fourth external hole, a first end hole, a second end hole, a boundary hole and a groove-shaped hole;
After the in-line iron core groups are respectively formed by the blanking female dies at the two blanking channels, the two long blanking holes on the strip are distributed in a staggered mode, and the convex parts of the two long blanking holes are arranged in a staggered mode, so that the tooth parts of the thin plates of the in-line iron core groups at the two blanking channels are formed in adjacent and staggered areas of the strip.
The invention relates to a manufacturing method of a movable motor iron core, which has the following beneficial effects:
1. according to the invention, the two first split profile holes or the two second split profile holes are formed in a staggered manner, so that two long blanking holes on the strip are distributed in a staggered manner, and the convex parts of the two long blanking holes are arranged in a staggered manner, so that the tooth parts of the thin plates of the in-line iron core group at the two blanking channels are formed in adjacent and staggered areas of the strip, and the waste of raw materials of the strip is reduced.
2. The adjacent two thin plates in each radial direction in the chained in-line iron core can rotate to be unfolded, so that detection and tooth winding inside the stator iron core are facilitated.
Drawings
Fig. 1 is a layout diagram of a core manufacturing process.
Fig. 2 is an arrangement of the core process engaged with the E-terminal of fig. 1.
Fig. 3 is an enlarged view at a.
Fig. 4 is an enlarged view at B.
Fig. 5 is an enlarged view at C.
Fig. 6 is an enlarged view at D.
Fig. 7 is a schematic view (one) of the structure of the in-line core group.
Fig. 8 is a view showing an annular structure of the in-line core pack formed based on fig. 7.
Fig. 9 is a schematic view of the structure of the in-line core group (two).
Fig. 10 is a view showing an annular structure of the in-line core pack formed based on fig. 8.
Fig. 11 is a schematic view (one) of the structure of the chain type in-line core.
Fig. 12 is a schematic diagram of the structure of the chain type in-line core (two).
Fig. 13 is a schematic view of another lamination method of the chain type in-line core.
In the figure, 100, strip materials, 200, an in-line iron core group, 201, a thin plate, 202, a tooth part, 203, a concave splicing groove, 204, a convex splicing part, 300, a chain-type in-line iron core, 1, a rotary through hole, 2, a connecting through hole, 3, a first end hole, 4, a first appearance hole, 5, a first division hole, 6, a second end hole, 7, a second appearance hole, 8, a second division hole, 9, a third appearance hole, 14, a third division hole, 10, a first appearance division hole, 11, a fourth appearance hole, 12, a fourth division hole, 13, a boundary hole, 15, a groove-shaped hole, 16, a concave part, 17, a rotary buckling point, 18, a convex edge, 19, a connecting buckling point, 20, a second appearance division hole, 21, an elongated blanking hole, 22, a convex part, 23 and a division convex part.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 1 to 13, a method for manufacturing a chain type straight bar iron core according to the present embodiment includes:
The strip 100 is continuously punched in a stepping manner, two first end holes 3, four second end holes 6 and a plurality of groups of first forming groups or second forming groups which are distributed at intervals along the length direction of the forming area of the strip 100 are punched and formed in a forming area which is arranged on the strip 100 along the width of the strip, the two first end holes 3 are positioned at the first end or the second end of the forming area of the strip 100, the four second end holes 6 are distributed at the two ends of the forming area of the strip 100 in a group by group, the first forming groups comprise two first split outline holes which are adjacently arranged and distributed along the length direction of the forming area of the strip 100, and the second forming groups comprise two second split outline holes which are adjacently arranged and distributed along the length direction of the forming area of the strip 100, wherein the forming order is as follows:
The strip 100 is continuously punched in a stepwise manner in a continuous stepwise manner, and two first end holes 3 arranged offset in relation to each other are punched in a first end or a second end of a forming zone arranged along the width of the strip 100.
Punching and forming a plurality of first contour holes 4 distributed at intervals along the length direction of the forming zone in a forming zone arranged along the width of the strip 100, wherein two concave parts 16 which are oppositely arranged are arranged on the inner side of the first contour holes 4, and the concave parts 16 are triangular;
Punching and forming a plurality of first dividing holes 5 which are distributed at intervals along the length direction of the forming area in a forming area arranged along the width of the strip 100, wherein each first appearance hole 4 is respectively positioned at the end parts of the plurality of first dividing holes 5 and communicated with each other to form a first dividing appearance hole, the lower side edge of the first dividing hole 5 is provided with a convex edge 18, and the convex edge 18 can be arranged in an arc shape;
a plurality of second contour holes 7 are punched and formed in a forming area arranged along the width of the strip 100 and are arranged at intervals along the length direction of the forming area, two concave parts 16 which are oppositely arranged are arranged on the inner side of the second contour hole 7, and the concave parts 16 are triangular;
a plurality of second dividing holes 8 are punched and formed in a forming area arranged along the width of the strip 100, the second dividing holes 8 are arranged at intervals along the length direction of the forming area, each second contour hole 7 is respectively positioned at the end parts of the second dividing holes 8 and communicated with each other to form another first dividing contour hole, the two first dividing contour holes are adjacent and arranged in a staggered manner, a convex edge 18 is arranged at the upper side edge of the second dividing hole 8, and the convex edge 18 can be arranged in an arc. Or alternatively
Punching and forming a plurality of third contour holes 9 distributed at intervals along the length direction of the forming zone in a forming zone arranged along the width of the strip 100, wherein two concave parts 16 which are oppositely arranged are arranged on the inner side of the third contour hole 9, and the concave parts 16 are triangular;
Punching and forming a plurality of third dividing holes 14 which are distributed at intervals along the length direction of the forming zone in a forming zone arranged along the width of the strip 100, wherein each third shape hole 9 is respectively positioned at the end parts of the plurality of third dividing holes 14 and is mutually communicated to form a second dividing shape hole, the upper side edge of the third dividing hole 14 is a convex edge 18, and the convex edge 18 can be arranged in an arc manner;
A plurality of fourth outer shape holes 11 which are arranged at intervals along the length direction of the forming zone are punched and formed in the forming zone arranged along the width of the strip 100, two concave parts 16 which are oppositely arranged are arranged on the inner side of the fourth outer shape holes 11, and the concave parts 16 are triangular;
A plurality of fourth dividing holes 12 are punched and formed in a forming area arranged along the width of the strip 100, the fourth dividing holes 12 are arranged at intervals along the length direction of the forming area, the fourth outer shape holes 11 are respectively positioned at the end parts of the fourth dividing holes 12 and are mutually communicated to form another second dividing outer shape hole, the two second dividing outer shape holes are adjacent and are arranged in a staggered mode, a convex edge 18 is arranged at the lower side edge of the fourth dividing hole 12, and the convex edge 18 can be arranged in an arc mode.
After the first or second split profile holes are punched, the process proceeds to the step of punching the boundary hole 13.
The inner ends of the first split contour holes or the inner ends of the second split contour holes are punched to form boundary holes 13, the first split contour holes and the second split contour holes are respectively communicated with the corresponding boundary holes 13, and an arc concave part 16 is arranged on one side of each boundary hole 13, and the specific forming steps are as follows.
The step of punching and forming the boundary holes 13 on the inner ends of the first split contour holes comprises the steps of punching and forming the boundary holes 13 communicated with the inner ends of the first split contour holes 5, punching and forming the boundary holes 13 communicated with the inner ends of the second split contour holes 8, and arranging the boundary holes 13 at the two positions in a staggered mode.
The step of punching the boundary hole 13 into the inner end of each second divided outline hole is to punch the boundary hole 13 communicating with the third divided hole 14 into the inner end of the third divided hole, and punch the boundary hole 13 communicating with the fourth divided hole 12 into the inner end of the fourth divided hole.
A slot-shaped hole 15 communicating with each other is punched between the boundary holes 13 at the two first divided outline holes of each first molding group or between the boundary holes 13 at the two second divided outline holes of each second molding group, and the specific molding steps are as follows.
A groove-shaped hole 15 is punched and formed between the extending end of the boundary hole 13 at the inner end of the first dividing hole 5 and the extending end of the boundary hole 13 at the inner end of the second dividing hole 8;
a groove-shaped hole 15 is punched and formed between the other extending end of the boundary hole 13 at the inner end of the first dividing hole 5 and the other extending end of the boundary hole 13 at the inner end of the second dividing hole 8;
In the above description, the two slot-shaped holes 15 have different hole areas, that is, the slot-shaped hole 15 formed in the first time is generally smaller than the slot-shaped hole 15 formed in the second time, and the slot-shaped hole 15 is composed of an inclined hole and straight holes which are located at two ends of the inclined hole and are arranged in a staggered manner, the inclined hole is communicated with the corresponding boundary hole 13 through the two straight holes, and the slot-shaped hole 15 is formed to enable the T-shaped tooth portion 202 in each sheet 201.
Punching at least once on the dividing protrusion on one side of one first dividing contour hole or the other first dividing contour hole of each first forming group to form the rotary buckling point 17 or the rotary through-piece hole 1, or punching at least once on the dividing protrusion on one side of one second dividing contour hole or the other second dividing contour hole of each second forming group to form the rotary buckling point 17 or the rotary through-piece hole 1; wherein, the convex edge 18 of the split convex and convex edge 18 can be formed after the first split hole 5 or the other first split hole 5 is formed, and the convex edge 18 of the split convex and convex edge 18 can be formed after the second split hole 8 or the other second split hole 8 is formed, therefore, when the mutual lamination of the straight iron core groups 200 is needed to be realized and the connection is realized through the rotary buckling point 17, the split convex parts of the two first split outline holes are formed by forming the rotary buckling point 17, and then the two straight iron core groups 200 are synchronously formed, the next two straight iron core groups 200 are formed by forming the rotary buckling point 17 through the split convex parts of the two second split outline holes, so that the alternate continuous forming is carried out, the mutual rotary connection between the laminated straight iron core groups 200 is realized, and each thin plate 201 of each group of the chained straight iron core 300 is provided with the rotary buckling point 17, or when the at least three adjacent straight iron core groups 200 are needed to be realized, the two straight iron core groups 200 are formed by rotating the rotary buckling point 17 and the rotary buckling point 1 through the rotary buckling point 1, and then the two split straight iron core groups 200 are formed by forming the two split outline groups through the rotary buckling point 1, the alternate forming is performed at least twice in this way, so that the laminated group formed by rotationally connecting the rotary buckling point 17 and the rotary through-hole 1 between at least two adjacent in-line iron core groups 200 is positioned at one end and the middle of the chained in-line iron core 300, and the middle thin plate 201 of the in-line iron core group 200 between the two laminated groups in the chained in-line iron core 300 does not punch the rotary buckling point 17 and the rotary through-hole 1 or only punches the rotary through-hole 1, so that at least one in-line iron core group 200 with the rotary through-hole 1 or without the rotary through-hole 1 and the rotary buckling point 17 is also laminated on the surface of the in-line iron core group 200 with the rotary through-hole 1, thereby realizing the forming of the two in-line iron core groups 200 by one punching.
The parts of each region for forming the sheet 201, which are not formed with the shape of the sheet 201, are continuously blanked to form the in-line iron core group 200 with the rotary buckling points 17 or the rotary through sheet holes 1, which are arranged along the length direction of the forming region of the strip 100, in two blanking channels respectively, and are continuously formed in each blanking channel to be connected in a stacking manner so as to form the chain-type straight strip iron core, so that the aim of synchronously and respectively laminating and producing and forming the two chain-type in-line iron cores 300 in the two blanking channels is further achieved. Wherein the in-line core groups 200 include a plurality of thin plates 201 arranged at intervals in the length direction thereof, and ends of the thin plates 201 of at least one adjacent two in-line core groups 200 are rotatably connected by adjacent two rotation-catching points 17 or by adjacent rotation-catching points 17 and rotation-passing holes 1, each thin plate 201 is formed by shaping of a first split profile hole or a second split profile hole, and boundary holes 13 and slot-shaped holes 15, and first end holes 3 and second end holes 6 are used for shaping of one end profile of the thin plates 201 of the in-line core groups 200 ends.
The blanking die at one blanking channel is used for forming an in-line iron core group 200 formed by forming a first dividing hole 5, a first outline hole 4, a first end hole 3, a second end hole 6, a boundary hole 13 and a groove-shaped hole 15 or forming an in-line iron core group 200 formed by forming a third dividing hole 14, a third outline hole 9, a first end hole 3, a second end hole 6, a boundary hole 13 and a groove-shaped hole 15, the blanking die at the other blanking channel is used for forming an in-line iron core group 200 formed by forming a second dividing hole 8, a second outline hole 7, a first end hole 3, a second end hole 6, a boundary hole 13 and a groove-shaped hole 15 or forming an in-line iron core group 200 formed by forming a fourth dividing hole 12, a fourth end hole 11, a first end hole 3, a second end hole 6, a boundary hole 13 and a groove-shaped hole 15, respectively forming in-line iron core groups 200, so that after blanking dies at the two blanking channels respectively form in-line iron core groups 200, blanking dies at two blanking channels are distributed on two blanking holes 100, and two blanking holes 21 are distributed at the two adjacent blanking holes 21 are staggered in a staggered mode, and the two blanking channels 100 are staggered in a staggered mode is formed by using the two adjacent blanking channels 100.
In this embodiment, at least one connecting buckle point 19 is punched and formed in the forming area of the strip 100 for each sheet 201, so that the sheets 201 in the axial direction of the chain type straight strip iron core are connected by the connecting buckle point 19, the sheets 201 in the axial direction are connected by the connecting buckle point 19, so that the connection is firm and reliable, and the chain type straight iron core 300 which is connected in a stacked manner is obtained after discharging in the blanking channel. Or alternatively
At least one connecting piece hole 2 is punched and formed in a forming area of the strip 100 for each thin plate 201, and the straight iron core group 200 with the connecting piece hole 2 is positioned at the end part of the chain straight iron core, and the method is arranged in such a way that when the number of the laminated straight iron core groups 200 reaches the number requirement, the straight iron core group 200 positioned at the end part of the chain straight iron core 300 is formed into the connecting piece hole 2, so that each chain straight iron core 300 in the blanking channel can realize separated discharging.
The step of forming the connecting through holes 2 and the step of forming the rotating through holes 1 are combined into one step, or the step of forming the connecting through holes 2 is an independent forming step.
In another embodiment, the adhesive is applied in the molding area of the strip 100 for each sheet 201 molding or in the molding area of the strip 100 so that the sheets 201 are connected by the adhesive in the axial direction of the chain type straight iron core, the connection buckle point 19 and the connection tab punching step are replaced, and the area having the rotation tab hole 1 and the rotation buckle point 17 is not applied with the adhesive at the time of the adhesive application.
Finally, the two ends of the chained iron core 300 are connected to form an annular motor stator iron core, and the first end hole 3 is used for forming the concave splicing groove 203 at the end of the iron core set 200, so that after the two ends of the iron core set 200 are connected, the two ends are spliced with each other through the concave splicing groove 203 and the convex splicing part 204.
In addition, the continuous blanking die sequentially comprises a rotary through hole blanking station, a rotary through hole and connecting through hole blanking station, a first end hole blanking station, a first appearance hole blanking station, a first division hole and second end hole blanking station, a second appearance hole and two second end hole blanking stations, a second division hole and second end hole blanking station, a third appearance hole blanking station, a third division hole blanking station, a fourth appearance hole blanking station, a fourth division hole blanking station, a boundary hole blanking station, another boundary hole blanking station, a groove hole blanking station, another groove hole blanking station, a connecting buckle point blanking station, a rotary buckle point blanking station, a first blanking station, another connecting buckle point blanking station, another rotary buckle point blanking station and another blanking station. The first dividing hole and the second end hole blanking station, the second shaping hole and the two second end hole blanking stations, the second dividing hole and the second end hole blanking station can be used for dividing the hole, shaping the shaping of the shaping hole and the second end hole or only shaping the second end hole.
Claims (10)
1. A method of manufacturing a chain type straight iron core, comprising:
The strip material (100) is continuously punched in a stepping mode, two first end holes (3), four second end holes (6) and a plurality of groups of first forming groups or second forming groups which are distributed at intervals along the length direction of the forming area of the strip material (100) are punched and formed in a forming area which is arranged on the strip material (100) along the width of the strip material, the two first end holes (3) are positioned at the first end or the second end of the forming area of the strip material (100), the four second end holes (6) are distributed at two ends of the forming area of the strip material (100) in a group, the first forming groups comprise two first split contour holes which are adjacently arranged and distributed along the length direction of the forming area of the strip material (100), and the second forming groups comprise two second split contour holes which are adjacently arranged and distributed along the length direction of the forming area of the strip material (100) at intervals;
punching a boundary hole (13) on the inner end of each first split profile hole or the inner end of each second split profile hole, and communicating each first split profile hole and each second split profile hole with the corresponding boundary hole (13) respectively;
Punching and forming groove-shaped holes (15) communicated with the boundary holes (13) at the two first split outline holes of each first forming group or the boundary holes (13) at the two second split outline holes of each second forming group;
punching a first split outline hole or a split protrusion on one side of the other first split outline hole of each first forming group at least once to form a rotary buckling point (17) or a rotary through piece hole (1), or punching a second split outline hole or a split protrusion on one side of the other second split outline hole of each second forming group at least once to form a rotary buckling point (17) or a rotary through piece hole (1);
The method comprises the steps of continuously blanking a part, which is not formed with the appearance of the sheet (201), of each area for forming the sheet (201), so as to respectively blanking and form an in-line iron core group (200) with rotary buckling points (17) or rotary through sheet holes (1) which are arranged along the length direction of a forming area of a strip (100) in two blanking channels, and continuously forming and laminating the in-line iron core group (200) in each blanking channel to form a chain-type in-line iron core, wherein the in-line iron core group (200) comprises a plurality of sheets (201) which are arranged at intervals along the length direction, and the ends of the sheets (201) of at least one adjacent two in-line iron core groups (200) are rotationally connected through two adjacent rotary buckling points (17) or rotationally connected through the adjacent rotary buckling points (17) and the rotary through sheet holes (1), each sheet (201) is formed by forming a first split appearance hole or a second split appearance hole, a boundary hole (13) and a groove-shaped hole (15), and the first end hole (3) and the second end hole (6) are used for forming the sheet (201) of one end of the appearance of the in-line iron core group (200).
2. The method of manufacturing a chain type straight bar iron core according to claim 1, wherein the forming step of the two first split profile holes for each first forming group is:
Punching and forming a plurality of first contour holes (4) which are distributed at intervals along the length direction of a forming zone in the forming zone arranged along the width of the strip (100), wherein two concave parts (16) which are oppositely arranged are arranged on the inner side of the first contour hole (4);
punching and forming a plurality of first dividing holes (5) which are distributed at intervals along the length direction of the forming area in a forming area arranged along the width of the strip (100), wherein each first outline hole (4) is respectively positioned at the end parts of the plurality of first dividing holes (5) and communicated with each other to form a first dividing outline hole, and the lower side edge of the first dividing hole (5) is provided with a convex edge (18);
A plurality of second contour holes (7) which are arranged at intervals along the length direction of the molding area are punched and molded in the molding area arranged along the width of the strip (100), and two concave parts (16) which are arranged oppositely are arranged at the inner side of the second contour hole (7);
A plurality of second dividing holes (8) which are arranged at intervals along the length direction of the forming area are punched and formed in the forming area arranged on the strip (100) along the width of the forming area, the second contour holes (7) are respectively positioned at the end parts of the second dividing holes (8) and are mutually communicated so as to form another first dividing contour hole, the two first dividing contour holes are adjacent and arranged in a staggered mode, and the convex edges (18) are arranged at the upper side edges of the second dividing holes (8).
3. The method of manufacturing a chain type straight bar iron core according to claim 2, wherein the forming step of the two second split profile holes for each second forming group is:
punching and forming a plurality of third contour holes (9) which are distributed at intervals along the length direction of the forming area in the forming area which is arranged along the width of the strip (100), wherein two concave parts (16) which are oppositely arranged are arranged on the inner side of the third contour hole (9);
Punching and forming a plurality of third dividing holes (14) which are distributed at intervals along the length direction of the forming area in a forming area arranged along the width of the strip (100), wherein each third outline hole (9) is respectively positioned at the end parts of the plurality of third dividing holes (14) and communicated with each other to form a second dividing outline hole, and the upper edge of the third dividing hole (14) is a convex edge (18);
A plurality of fourth outer shape holes (11) which are arranged at intervals along the length direction of the forming area are punched and formed in the forming area which is arranged along the width of the strip (100), and two concave parts (16) which are arranged oppositely are arranged at the inner side of the fourth outer shape holes (11);
A plurality of fourth dividing holes (12) which are arranged at intervals along the length direction of the forming area are punched and formed in the forming area arranged on the strip material (100) along the width of the forming area, the fourth outer shape holes (11) are respectively positioned at the end parts of the fourth dividing holes (12) and are mutually communicated to form another second dividing outer shape hole, the two second dividing outer shape holes are adjacent and arranged in a staggered mode, and the convex edges (18) are arranged at the lower side edges of the fourth dividing holes (12).
4. A method of manufacturing a chain type bar core according to claim 2, wherein the step of blanking the forming boundary hole (13) for the inner end of each first split profile hole comprises:
a boundary hole (13) communicated with the first dividing hole (5) is punched and formed at the inner end of the first dividing hole;
a boundary hole (13) communicating with the second dividing hole (8) is punched and formed at the inner end of the second dividing hole.
5. A method of manufacturing a chain type bar core according to claim 3, wherein the step of blanking the forming boundary hole (13) for the inner end of each second split profile hole comprises:
a boundary hole (13) communicated with the third dividing hole (14) is punched and formed at the inner end of the third dividing hole;
a boundary hole (13) communicating with the fourth dividing hole (12) is punched and formed at the inner end of the fourth dividing hole.
6. A method of manufacturing a chain type rectilinear iron core according to any one of claims 1-5, characterized in that at least one connecting fastening point (19) is blanking-formed in the forming zone of the strip (100) for each sheet (201) so that the sheets (201) are connected in the axial direction of the chain type rectilinear iron core by the connecting fastening point (19).
7. A method of manufacturing a chain type rectilinear iron core according to claim 6, characterized in that at least one connecting through-piece hole (2) is blanking-formed in a forming region for each sheet (201) in the forming region of the strip (100), and an inline iron core group (200) having the connecting through-piece holes (2) is located at an end portion of the chain type rectilinear iron core;
The forming step of the connecting through sheet holes (2) and the forming step of the rotating through sheet holes (1) are combined into one step, or the forming step of the connecting through sheet holes (2) is an independent forming step.
8. A method of manufacturing a chain type rectilinear iron core according to claim 6, characterized in that glue is applied in the forming zone of the strip (100) for each sheet (201) or in the forming zone of the strip (100) so that the sheets (201) are connected by glue in the axial direction of the chain type rectilinear iron core.
9. The method for manufacturing a chained straight iron core according to claim 1, wherein when the ends of the thin plates (201) of at least one axially adjacent two straight iron core groups (200) are rotationally connected through adjacent rotary buckling points (17) and rotary through-holes (1), at least one straight iron core group (200) with a rotary through-hole (1) or without a rotary through-hole (1) and a rotary buckling point (17) is further laminated and connected on the surface of the straight iron core group (200) with the rotary through-hole (1);
When the ends of the thin plates (201) of at least one axially adjacent two straight iron core groups (200) are rotationally connected through two adjacent rotating buckling points (17), the thin plates (201) of each group of straight iron core groups (200) in the chain type straight iron core (300) are provided with the rotating buckling points (17).
10. A method of manufacturing a chain type rectilinear iron core according to claim 3, wherein two blanking channels are arranged apart from each other or in parallel;
A blanking die at one blanking passage is used for forming an in-line iron core group (200) formed by the formation of a first dividing hole (5), a first outline hole (4), a first end hole (3), a second end hole (6), a boundary hole (13) and a slot-shaped hole (15), or is used for forming an in-line iron core group (200) formed by the formation of a third dividing hole (14), a third outline hole (9), a first end hole (3), a second end hole (6), a boundary hole (13) and a slot-shaped hole (15);
The blanking die at the other blanking passage is used for forming an in-line iron core group (200) formed by the formation of a second dividing hole (8), a second outline hole (7), a first end hole (3), a second end hole (6), a boundary hole (13) and a slot-shaped hole (15), or is used for forming an in-line iron core group (200) formed by the formation of a fourth dividing hole (12), a fourth outline hole (11), a first end hole (3), a second end hole (6), a boundary hole (13) and a slot-shaped hole (15);
after the in-line iron core groups (200) are respectively formed by the blanking female dies at the two blanking channels, the two long blanking holes (21) on the strip (100) are distributed in a staggered mode, and the convex parts (22) of the two long blanking holes (21) are arranged in a staggered mode, so that the tooth parts (202) of the thin plates (201) of the in-line iron core groups (200) at the two blanking channels are formed in adjacent and staggered areas of the strip (100).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2012130103A (en) * | 2010-12-13 | 2012-07-05 | Mitsui High Tec Inc | Laminated core and manufacturing method of the same |
| CN113451011A (en) * | 2020-03-27 | 2021-09-28 | 日立金属株式会社 | Fe-based soft magnetic amorphous alloy sheet, method for producing the same, laminated iron core, and rotating electrical machine |
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| CN118923025A (en) * | 2022-03-24 | 2024-11-08 | 尼得科株式会社 | Method for manufacturing stator core, and motor |
| CN118801638B (en) * | 2024-07-22 | 2025-07-04 | 宁波震裕科技股份有限公司 | Manufacturing method of laminated iron core of motor |
| CN118694107B (en) * | 2024-08-22 | 2024-12-06 | 宁波震裕科技股份有限公司 | Manufacturing method of motor iron core formed by punching multi-layer adhesive material belt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012130103A (en) * | 2010-12-13 | 2012-07-05 | Mitsui High Tec Inc | Laminated core and manufacturing method of the same |
| CN113451011A (en) * | 2020-03-27 | 2021-09-28 | 日立金属株式会社 | Fe-based soft magnetic amorphous alloy sheet, method for producing the same, laminated iron core, and rotating electrical machine |
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