CN112366905B - Manufacturing process of motor stator with locally separated tooth yoke - Google Patents
Manufacturing process of motor stator with locally separated tooth yoke Download PDFInfo
- Publication number
- CN112366905B CN112366905B CN202110029222.6A CN202110029222A CN112366905B CN 112366905 B CN112366905 B CN 112366905B CN 202110029222 A CN202110029222 A CN 202110029222A CN 112366905 B CN112366905 B CN 112366905B
- Authority
- CN
- China
- Prior art keywords
- punching
- tooth
- yoke
- stator core
- splicing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/085—Forming windings by laying conductors into or around core parts by laying conductors into slotted stators
Abstract
The invention discloses a manufacturing process of a motor stator with a locally separated tooth yoke, which comprises the following process steps: step A, feeding; b, punching a winding slot; c, punching a splicing surface of the tooth yoke of the groove; step D, punching a metering hole; e, punching an inner hole; f, punching a buckling point; step G, blanking: obtaining a stator core; step H, separation: separating the stator cores to obtain two stator core single blocks; step I, winding: respectively and independently winding the two separated stator core single blocks in the step H; step J, combination: and (4) recombining the two stator core blocks wound in the step I along the original separation position to obtain a motor stator finished product. The stator has the advantages of small size error when all parts are assembled, low product rejection rate, good performance of a motor using the stator and high working efficiency.
Description
Technical Field
The invention relates to a manufacturing process of a motor stator, in particular to a manufacturing process of a motor stator with a locally separated tooth yoke.
Background
When the stator core performs the winding operation, the size of the notch between two adjacent tooth portions relates to the difficulty of winding and the winding speed, and in order to improve the winding speed, a stator assembly with locally separated tooth yokes has been developed at present, for example, a stator assembly disclosed in patent publication No. CN 107546875 a (see fig. 1), which is formed by combining two stator core blocks, and the split surfaces of the slot tooth yokes of the two stator core blocks are circumferentially arranged in a crossed manner, that is, the split surface of the slot tooth yoke on each stator core block is halved, so that an enough space is provided between the split surfaces of the adjacent slot tooth yokes of each stator core block to perform the winding operation. At present, when the stator assembly is produced, each component forming the stator assembly is taken as a unit, the corresponding die is used for independently punching and manufacturing each component, namely a stator core single piece with a slot tooth yoke splicing surface and a missing part of the slot tooth yoke splicing surface, assembly work is carried out after the manufacturing is finished, two stator core single pieces are spliced, two stator core single pieces are wound, and finally a complete motor stator is spliced; the phenomenon that the two stator core single blocks after winding cannot be spliced can be caused, and products are scrapped.
Therefore, the existing motor stator manufacturing process with the locally separated tooth yoke has the problems that the size error exists during component assembly, the use performance of the motor is influenced, certain scrapping risk exists, the component assembly consumes long time, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a manufacturing process of a motor stator with a partially separated tooth yoke. The stator has the advantages of small size error and low product rejection rate when all parts are assembled, and the motor using the stator manufactured by the process has good performance and higher working efficiency.
The technical scheme of the invention is as follows: a manufacturing process of a motor stator with a partially separated tooth yoke comprises the following process steps:
step A, feeding: feeding the strip material into a punch press, so that the strip material can be continuously fed forwards step by step on the punch press;
b, punching a wire winding slot: in the process of feeding the strip materials forwards in a stepping manner, punching an even number of winding slotted holes which are uniformly distributed in a ring shape after each stepping; the area between two adjacent winding slotted holes is a slot tooth yoke splicing surface;
step C, notching tooth yoke splicing surface: b, punching a group of groove tooth yoke splicing surfaces formed by winding groove holes each time, wherein the group of groove tooth yoke splicing surfaces comprises odd-numbered groove tooth yoke splicing surfaces and even-numbered groove tooth yoke splicing surfaces which are alternately arranged along the circumferential direction, in the process of feeding the strip material forward in a stepping mode, punching the odd-numbered groove tooth yoke splicing surfaces or the even-numbered groove tooth yoke splicing surfaces after each stepping is carried out, the groove tooth yoke splicing surfaces punched in each punching process are contained back to the strip material, and the detachable odd-numbered groove tooth yoke splicing surfaces or the detachable even-numbered groove tooth yoke splicing surfaces are obtained on the strip material;
the stamping rule of the splicing surface of the slot tooth yoke is as follows: a. continuously punching the odd-numbered slot yoke splicing surfaces for m times; b. continuously punching the splicing surfaces of the even-numbered slot tooth yokes n times; a and b are carried out alternately in a circulating way, and m and n are both more than or equal to 1;
step D, punching a metering hole:
in the process of feeding the strip material forward in a stepping mode, punching a base layer metering hole on the strip material corresponding to the position where the strip material is punched for the first time in the splicing surfaces of the odd-numbered slot yokes for m times continuously and the position where the strip material is punched for the first time in the splicing surfaces of the even-numbered slot yokes for n times continuously in the step C; the base layer metering holes are positioned on the outer sides of the winding slotted holes and are arranged along the circumferential direction;
punching a tooth part metering hole on the strip corresponding to the position punched for the first time in the splicing surface of the odd-numbered slot yoke for m times continuously in the step C in the process of feeding the strip forwards in a stepping mode; the tooth part metering hole is positioned on the groove tooth yoke splicing surface;
e, punching an inner hole: in the process of feeding the strip materials forwards in a stepping mode, after each stepping mode, punching an inner hole towards an area defined by one group of winding slotted holes, and punching the inner side of each winding slotted hole to form a notch;
step F, punching a buckling point:
in the process of feeding the strip material forward in a stepping mode, punching a base layer buckling point at a position where first punching is removed from m continuous odd-number groove yoke splicing surfaces and n continuous even-number groove yoke splicing surfaces in the corresponding step on the strip material; the base layer buckling points are positioned on the outer sides of the winding slotted holes and are arranged along the circumferential direction;
in the process of feeding the strip material forward step by step, punching tooth buckling points on the strip material at positions corresponding to the positions except for the first punching in the splicing surfaces of the odd-numbered slot yoke for continuous m times in the step C; the tooth part buckling point is positioned on the groove tooth yoke splicing surface;
step G, blanking: in the process of feeding the strip materials forwards in a stepping mode, stamping and blanking are carried out once after each stepping, positions on the strip materials, corresponding to the positions of stamping of splicing surfaces of odd-numbered slot yokes for m times continuously and stamping of splicing surfaces of even-numbered slot yokes for n times continuously in the step C, are stamped and blanked sequentially, and m stator core single sheets with detachable odd-numbered slot yoke splicing surfaces and n stator core single sheets with detachable even-numbered slot yoke splicing surfaces are stacked sequentially under the action of a buckling point binding force to obtain a stator core;
step H, separation: taking the superposed surfaces of m stator core single sheets with detachable odd-number slot yoke splicing surfaces and n stator core single sheets with detachable even-number slot yoke splicing surfaces as separating surfaces, and separating the stator cores along the separating surfaces; the splicing surfaces of the m detachable odd-numbered slot tooth yokes are separated from the original m stator core single sheets and are combined to the n stator core single sheets to obtain an upper half stator core single sheet; the splicing surfaces of the n detachable even-numbered slot tooth yokes are separated from the original n stator core single sheets and are combined to the m stator core single sheets to obtain a lower half stator core single sheet;
step I, winding: respectively and independently winding the upper half stator core single block and the lower half stator core single block which are obtained by separation in the step H;
step J, combination: and (4) recombining the two stator core blocks wound in the step I along the original separation position to obtain a motor stator finished product.
Compared with the prior art, the invention has the beneficial effects that: the stator core required by the stator can be processed on a punch production line at one time, specifically, a slot tooth yoke splicing surface is formed on a strip material by punching a winding slotted hole along with the stepping of the strip material, different stations are provided for punching odd slot tooth yoke splicing surfaces and even slot tooth yoke splicing surfaces, the slot tooth yoke splicing surfaces are punched and then are contained on the strip material which is blanked back, the size error caused by splicing the slot tooth yoke splicing surfaces to different blanking positions can be effectively avoided, the metering holes, inner holes and buckling points are punched at corresponding positions of the strip material after the slot tooth yoke splicing surfaces contain the strip material which is blanked back, finally, the stator core single pieces are sequentially laminated under the action of the buckling points to obtain a complete stator core, the scrap probability is low, no part needs to be spliced, and the working efficiency is high. For a stator core manufacturer, the stator core at the moment has delivery conditions, can be delivered in a form of a complete stator core, and is more convenient to transport and measure compared with the delivery of scattered sheets; for the assembly of the whole motor, the finished stator of the motor can be obtained only by separating, winding and recombining the stator core from the separating surface after the stator core is obtained, the detachable odd-number slot yoke splicing surface and the even-number slot yoke splicing surface can be separated from the originally attached stator core single sheet under the action of the buckling point binding force in the separating process, and the stator core single sheet with the number of two winding slots reduced by half and part of slot yoke splicing surfaces protruding outwards is obtained, so that the winding is facilitated.
In the manufacturing process of the motor stator with the locally separated tooth yoke, before the two stator core single pieces are separated in the step H, the joint position of the detachable slot tooth yoke splicing surface on the stator core single piece is taken as a boundary line, local heating is carried out on the part outside the boundary line, and local cooling is carried out on the part inside the boundary line.
In the manufacturing process of the motor stator with the locally separated tooth yoke, before the two stator core single blocks are combined in the step J, the joint part of the splicing surfaces of the detachable slot tooth yoke on the stator core single block is locally heated.
In the foregoing manufacturing process of a motor stator with a partially separated tooth yoke, the number m of continuous punching times of the split surfaces of the odd-numbered slot-tooth yoke in step C is equal to the number n of continuous punching times of the split surfaces of the even-numbered slot-tooth yoke.
In the manufacturing process of the motor stator with the tooth yoke partially separated, the pilot hole is punched between the step A and the step B, and the pilot hole is punched on two sides of the strip in the length direction after each step in the strip material stepping forward feeding process.
In the manufacturing process of the motor stator with the locally separated tooth yokes, the punch press is sequentially provided with a pilot hole punching station, a pre-hole punching station, a winding slot punching station, an odd-number slot yoke splicing surface punching station, an even-number slot yoke splicing surface punching station, a base layer metering hole punching station, a tooth part metering hole punching station, an inner hole punching station, a base layer buckling point punching station, a tooth part buckling point punching station and a blanking station in the forward stepping direction.
In the manufacturing process of the motor stator with the locally separated tooth yokes, leveling stations are arranged behind the odd-number groove tooth yoke splicing face punching station and the even-number groove tooth yoke splicing face punching station, and the upper surface and the lower surface of the groove tooth yoke splicing face contained back to the strip material in the step C are leveled at the leveling stations, so that the upper surface and the lower surface of the groove tooth yoke splicing face are flush with the upper surface and the lower surface of the strip material.
In the manufacturing process of the motor stator with the locally separated tooth yoke, the pilot holes are arranged in two rows in the direction that the strip material advances in a stepping mode, the pilot holes in each row are distributed at equal intervals, and the distance between two adjacent pilot holes in the same row is the feeding step distance.
In the manufacturing process of the motor stator with the locally separated tooth yoke, when the base layer metering hole and the tooth portion metering hole are punched, a through hole position is punched on a strip by the punching die; when punching a base layer buckling point and a tooth part buckling point, punching a downward bulge on the strip by using a punching die; the fastening points are used for fastening with other fastening points or fastening into the metering points.
In the manufacturing process of the motor stator with the locally separated tooth yoke, in the step B, six winding slots which are uniformly distributed are annularly punched after each stepping.
Drawings
FIG. 1 is a schematic structural view of a stator core made by the process of the present invention;
FIG. 2 is a schematic view of a press line according to the present invention.
Reference numerals: 1-pre-hole, 2-winding slotted hole, 3-odd-number slotted yoke split surface, 4-even-number slotted yoke split surface, 5-base layer metering hole, 6-tooth portion metering hole, 7-inner hole, 8-base layer buckling point, 9-tooth portion buckling point, 10-guide hole punching station, 11-pre-hole punching station, 12-winding slotted hole punching station, 13-odd-number slotted yoke split surface punching station, 14-even-number slotted yoke split surface punching station, 15-base layer metering hole punching station, 16-tooth portion punching metering hole station, 17-inner hole punching station, 18-base layer buckling point punching station, 19-tooth portion buckling point punching station, 20-blanking station, 21-leveling station and 101-base layer outer ring.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example (b): a manufacturing process of a motor stator with locally separated tooth yokes is disclosed, and the manufacturing structure of the motor stator is as shown in figure 1, the stator core in figure 1 comprises a base outer ring 101, even-number groove tooth yoke splicing surfaces 4 and odd-number groove tooth yoke splicing surfaces 3, and the manufacturing process specifically comprises the following process steps:
step A, feeding: feeding the strip material into a punch press, so that the strip material can be continuously fed forwards step by step on the punch press; the punching machine is sequentially provided with a pilot hole punching station 10, a pre-hole punching station 11, a winding hole punching station 12, an odd-number groove tooth yoke splicing surface punching station 13, an even-number groove tooth yoke splicing surface punching station 14, a base layer punching metering hole station 15, a tooth punching metering hole station 16, an inner hole punching station 17, a base layer punching buckling point station 18, a tooth punching buckling point station 19 and a blanking station 20 in the forward stepping direction, wherein a leveling station 21 is arranged behind the odd-number groove tooth yoke splicing surface punching station 13 and the even-number groove tooth yoke splicing surface punching station 14, and the working assembly line diagram of the punching machine is shown in FIG. 2;
preferably, in the process of feeding the strip materials forwards in a stepping mode, punching of pilot holes is performed on two sides of the length direction of the strip materials after each stepping mode, the pilot holes are arranged in two rows in the direction of the strip materials forwards in the stepping mode, the pilot holes in each row are distributed at equal intervals, and the distance between every two adjacent pilot holes in the same row is the feeding step pitch;
in the process of feeding the strip materials forwards in a stepping manner, the strip materials are punched once after each stepping; (when the bar stock is the bar stock recycled after the rotor core is punched, since the round hole can be punched on the bar stock after the rotor core is punched, the round hole can be used as the pre-hole 1, namely the step of punching the pre-hole 1 on the bar stock can be omitted.)
B, punching a wire winding slot hole 2: in the process of feeding the strip material forwards in a stepping manner, an even number of uniformly distributed winding slotted holes 2 are punched in the circumferential direction of the pre-hole 1 after each stepping, and preferably, six winding slotted holes 2 are punched in the embodiment; the area between two adjacent winding slotted holes 2 is a slot tooth yoke splicing surface and is prepared for punching the slot tooth yoke splicing surface;
step C, notching tooth yoke splicing surface: b, punching winding slotted holes 2 each time to form a group of slotted tooth yoke split surfaces, wherein the group of slotted tooth yoke split surfaces comprises odd numbered slotted tooth yoke split surfaces 3 and even numbered slotted tooth yoke split surfaces 4, the odd numbered slotted tooth yoke split surfaces 3 and the even numbered slotted tooth yoke split surfaces 4 are alternately arranged along the circumferential direction, in the process of feeding the strip material forward in a stepping mode, punching of the odd numbered slotted tooth yoke split surfaces 3 or the even numbered slotted tooth yoke split surfaces 4 is carried out once after each stepping, the slotted tooth yoke split surfaces punched each time are contained back to the strip material, the detachable odd numbered slotted tooth yoke split surfaces 3 or the detachable even numbered slotted tooth yoke split surfaces 4 are obtained on the strip material, and the step back to the strip material means that the punched slotted tooth yoke split surfaces are pushed back to the punching position on the strip material along the original path;
the stamping rule of the splicing surface of the slot tooth yoke is as follows: a. continuously punching the odd-numbered slot yoke splicing surfaces 3 for m times; b. continuously punching the even-numbered slot yoke splicing surfaces 4 for n times; a and b are carried out alternately in a circulating way, the number of single stator core sheets required by one stator core combination is obtained once in each circulation, and m and n are both more than or equal to 1;
m + n is the total number of stator core sheets forming a stator core, the total number of stator core sheets is obtained by dividing the set height of the stator core by the thickness of the bar stock, and can be an odd number or an even number, preferably, the closer the values of m and n are, the better, when the total number of stator core sheets is the even number, m = n is selected, when the total number of stator core sheets is the odd number, the difference between m and n is selected to be 1, and in the embodiment, the number of times m is selected to be equal to the number of times n; m and n both take the value of 10;
and C, punching the odd-numbered slot yoke split surfaces 3 and the even-numbered slot yoke split surfaces 4 at two corresponding stations on a punch press simultaneously, and controlling a punching die through a drawing plate so that only the odd-numbered slot yoke split surfaces 3 or the even-numbered slot yoke split surfaces 4 are punched in each punching.
Leveling the upper and lower surfaces of the splicing surface of the slot yoke which is contained back to the strip material in the step D at a leveling station 21 to enable the upper and lower surfaces to be flush with the upper and lower surfaces of the strip material;
step D, punching a metering hole:
in the process of feeding the strip forward in a stepping mode, punching a base layer metering hole 5 on the strip corresponding to the position where the strip is punched for the first time in the odd-numbered slot yoke splicing surface 3 for 10 times continuously and the position where the strip is punched for the first time in the even-numbered slot yoke splicing surface 4 for 10 times continuously in the step C; the base layer metering holes 5 are positioned on the outer side of the winding slotted hole 2 and are arranged along the circumferential direction;
in the process of feeding the strip material forward step by step, punching a tooth part metering hole 6 on the strip material corresponding to the position of the first punching in the odd-numbered slot yoke splicing surface 3 for 10 times continuously in the step C; the tooth part metering hole 6 is positioned on a split surface of the slot tooth yoke;
e, punching an inner hole 7: in the process of feeding the strip materials forwards in a stepping manner, stamping an inner hole 7 towards the position of the pilot hole 1 after each stepping so as to stamp a notch from the winding slotted hole 2; the aperture of the inner hole 7 is larger than that of the pre-hole 1;
step F, punching a buckling point:
in the process of feeding the strip material forward step by step, punching a base layer buckling point 8 on the strip material corresponding to the position where the first punching is removed from the odd-numbered slot yoke splicing faces 3 for m times continuously in the step C and the position where the first punching is removed from the even-numbered slot yoke splicing faces 4 for n times continuously; the base layer buckling points 8 are positioned on the outer side of the winding slotted hole 2 and are arranged along the circumferential direction;
in the process of feeding the strip material forwards in a stepping mode, punching a tooth buckling point 9 at a position on the strip material corresponding to the position, except for the first punching, of the odd-numbered slot yoke splicing surface 3 for m times continuously in the step C; the tooth part buckling point 9 is positioned on the groove tooth yoke splicing surface;
when the base layer metering hole 5 and the tooth portion metering hole 6 are punched, a through hole position is punched on the strip by the punching die; when punching a base layer buckling point 8 and a tooth part buckling point 9, punching a downward bulge on the strip by using a punching die; the buckling points are used for buckling with other buckling points or buckling into the metering points;
step G, blanking: in the process of feeding the strip materials forwards in a stepping mode, stamping and blanking are carried out once after each stepping, positions, corresponding to 10 times of stamping of odd-numbered slot yoke splicing surfaces 3 and 10 times of stamping of even-numbered slot yoke splicing surfaces 4 in the step C, on the strip materials are stamped and blanked in sequence, 10 stator core single sheets with detachable odd-numbered slot yoke splicing surfaces 3 and 10 stator core single sheets with detachable even-numbered slot yoke splicing surfaces 4 are sequentially stacked under the action of a buckling point binding force to obtain a complete stator core, and a plurality of complete stator cores can be obtained along with the continuation of the stepping and blanking work of the strip materials;
the stator core at this moment is complete whole, can reach the standard of dispatching from the factory, supplies the motor assembly side, because stator core is monolithic phase tie together, is convenient for transport and measurement, when the motor assembly side obtained stator core, thereby still need carry on following three steps and obtain motor stator finished product:
step H, separation: taking the superposed surfaces of 10 stator core single sheets with detachable odd-number slot yoke splicing surfaces 3 and 10 stator core single sheets with detachable even-number slot yoke splicing surfaces 4 as separating surfaces, and separating the stator core along the separating surfaces; because the punching of the base layer measuring hole 5 is carried out on the position where the even-numbered slot yoke splicing faces 4 are punched for the first time for 10 times continuously in the step E, two adjacent base layer outer rings 101 in one stator core can be separated from each other, and because the tooth measuring holes 6 are only punched on the first block of the stator core, the adjacent slot yoke splicing faces are firmly buckled through buckling points, so that the detachable odd-numbered slot yoke splicing faces 3 and the even-numbered slot yoke splicing faces 4 are separated from the originally attached stator core single pieces under the action of the buckling point binding force, and two stator core single pieces with the number of winding slots reduced by half can be obtained through separation; namely 10 detachable odd-number slot yoke splicing surfaces 3 are separated from the original 10 stator core single sheets and combined to the new 10 stator core single sheets to obtain an upper half stator core single sheet; the 10 detachable even-number slot yoke splicing surfaces 4 are separated from the original 10 stator core single sheets and combined to the new 10 stator core single sheets to obtain a lower half stator core single sheet;
in order to facilitate separation, before the two stator core single blocks are separated in the step H, the joint position of the detachable slot yoke splicing surface on the stator core single block is taken as a boundary line, local heating is carried out on the part outside the boundary line, local cooling is carried out on the part inside the boundary line, and the stator core single blocks can be separated more conveniently after the expansion and contraction effect, wherein the boundary line is shown as the position indicated by P in figure 1;
step I, winding: the upper half stator core single block and the lower half stator core single block which are obtained by separation in the step H are separately wound, and the winding notch is large, so that the winding work can be conveniently and quickly carried out;
step J, combination: and C, recombining the two stator core single blocks wound in the step I along the original separation position to obtain a finished motor stator product, wherein in order to facilitate recombination, before the two stator core single blocks in the step J are combined, local heating is carried out on the combination part of the detachable slot tooth yoke splicing surfaces on the stator core single blocks to heat the combination part, so that the slot tooth yoke splicing surfaces are conveniently inserted, the detachable slot tooth yoke splicing surfaces are reinserted from the original separation position to obtain the stator core wound with the wire, namely the finished motor stator product.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned examples, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A manufacturing process of a motor stator with a tooth yoke partially separated is characterized in that: the method comprises the following process steps:
step A, feeding: feeding the strip material into a punch press, so that the strip material can be continuously fed forwards step by step on the punch press;
b, punching a wire winding slot: in the process of feeding the strip materials forwards in a stepping manner, punching an even number of winding slotted holes which are uniformly distributed in a ring shape after each stepping; the area between two adjacent winding slotted holes is a slot tooth yoke splicing surface;
step C, notching tooth yoke splicing surface: b, punching a group of groove tooth yoke splicing surfaces formed by winding groove holes each time, wherein the groove tooth yoke splicing surfaces comprise odd-number groove tooth yoke splicing surfaces and even-number groove tooth yoke splicing surfaces, the odd-number groove tooth yoke splicing surfaces and the even-number groove tooth yoke splicing surfaces are alternately arranged along the circumferential direction, in the process of feeding the strip material forwards in a stepping mode, punching of the odd-number groove tooth yoke splicing surfaces or the even-number groove tooth yoke splicing surfaces is carried out once after each stepping, the groove tooth yoke splicing surfaces punched each time are pushed back to punching positions on the strip material along the original path, and the detachable odd-number groove tooth yoke splicing surfaces or the detachable even-number groove tooth splicing surfaces are obtained on the strip material;
the stamping rule of the splicing surface of the slot tooth yoke is as follows: a. continuously punching the odd-numbered slot yoke splicing surfaces for m times; b. continuously punching the splicing surfaces of the even-numbered slot tooth yokes n times; a and b are carried out alternately in a circulating way, and m and n are both more than or equal to 1;
step D, punching a metering hole:
in the process of feeding the strip material forward in a stepping mode, punching a base layer metering hole on the strip material corresponding to the position where the strip material is punched for the first time in the splicing surfaces of the odd-numbered slot yokes for m times continuously and the position where the strip material is punched for the first time in the splicing surfaces of the even-numbered slot yokes for n times continuously in the step C; the base layer metering holes are positioned on the outer sides of the winding slotted holes and are arranged along the circumferential direction;
punching a tooth part metering hole on the strip corresponding to the position punched for the first time in the splicing surface of the odd-numbered slot yoke for m times continuously in the step C in the process of feeding the strip forwards in a stepping mode; the tooth part metering hole is positioned on the groove tooth yoke splicing surface;
e, punching an inner hole: in the process of feeding the strip materials forwards in a stepping mode, after each stepping mode, punching an inner hole towards an area defined by one group of winding slotted holes, and punching the inner side of each winding slotted hole to form a notch;
step F, punching a buckling point:
in the process of feeding the strip material forward step by step, punching a base layer buckling point on the strip material corresponding to the position where the first punching is removed from the m-time odd-numbered slot yoke splicing surfaces and the first punching is removed from the n-time even-numbered slot yoke splicing surfaces in the step C; the base layer buckling points are positioned on the outer sides of the winding slotted holes and are arranged along the circumferential direction;
in the process of feeding the strip material forward step by step, punching tooth buckling points on the strip material at positions corresponding to the positions except for the first punching in the splicing surfaces of the odd-numbered slot yoke for continuous m times in the step C; the tooth part buckling point is positioned on the groove tooth yoke splicing surface;
step G, blanking: in the process of feeding the strip materials forwards in a stepping mode, stamping and blanking are carried out once after each stepping, positions on the strip materials, corresponding to the positions of stamping of splicing surfaces of odd-numbered slot yokes for m times continuously and stamping of splicing surfaces of even-numbered slot yokes for n times continuously in the step C, are stamped and blanked sequentially, and m stator core single sheets with detachable odd-numbered slot yoke splicing surfaces and n stator core single sheets with detachable even-numbered slot yoke splicing surfaces are stacked sequentially under the action of a buckling point binding force to obtain a stator core;
step H, separation: taking the superposed surfaces of m stator core single sheets with detachable odd-number slot yoke splicing surfaces and n stator core single sheets with detachable even-number slot yoke splicing surfaces as separating surfaces, and separating the stator cores along the separating surfaces; the splicing surfaces of the m detachable odd-numbered slot tooth yokes are separated from the original m stator core single sheets and are combined to the n stator core single sheets to obtain an upper half stator core single sheet; the splicing surfaces of the n detachable even-numbered slot tooth yokes are separated from the original n stator core single sheets and are combined to the m stator core single sheets to obtain a lower half stator core single sheet;
step I, winding: respectively and independently winding the upper half stator core single block and the lower half stator core single block which are obtained by separation in the step H;
step J, combination: and (4) recombining the two stator core blocks wound in the step I along the original separation position to obtain a motor stator finished product.
2. The process of claim 1, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: and H, before the two stator core single blocks are separated, local heating is carried out on the parts outside the boundary line by taking the joint part of the detachable slot yoke splicing surface on the stator core single block as the boundary line, and local cooling is carried out on the parts inside the boundary line.
3. The process of claim 1, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: and D, before the two stator core single blocks are combined in the step J, locally heating the combined part of the detachable slot yoke splicing surfaces on the stator core single blocks.
4. The process of claim 1, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: and C, the continuous stamping times m of the splicing surfaces of the odd-numbered slot tooth yokes in the step C are equal to the continuous stamping times n of the splicing surfaces of the even-numbered slot tooth yokes.
5. The process of claim 1, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: and B, punching a pilot hole between the step A and the step B, and in the process of feeding the strip material forwards in a stepping manner, punching the pilot hole on two sides of the strip material in the length direction after each stepping.
6. The process of claim 1, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: the punching machine is sequentially provided with a pilot hole punching station, a pre-hole punching station, a winding groove punching station, an odd-number groove yoke splicing surface punching station, an even-number groove yoke splicing surface punching station, a base layer metering hole punching station, a tooth portion metering hole punching station, an inner hole punching station, a base layer buckling point punching station, a tooth portion buckling point punching station and a blanking station in the forward stepping direction.
7. The process of claim 6, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: and C, leveling stations are arranged behind the odd-number groove tooth yoke splicing face punching station and the even-number groove tooth yoke splicing face punching station, and the leveling stations are used for leveling the upper surface and the lower surface of the groove tooth yoke splicing face pushed back to the strip material along the original path in the step C, so that the upper surface and the lower surface of the groove tooth yoke splicing face are flush with the upper surface and the lower surface of the strip material.
8. The process of claim 5, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: the pilot holes are arranged in two rows in the direction that the strip materials advance step by step, each row of pilot holes are distributed at equal intervals, and the distance between every two adjacent pilot holes in the same row is the feeding step.
9. The process of claim 1, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: when the base layer metering hole and the tooth portion metering hole are punched, a through hole position is punched on the strip material by the punching die; when punching a base layer buckling point and a tooth part buckling point, punching a downward bulge on the strip by using a punching die; the base layer buckling points are used for buckling with other base layer buckling points or buckling into the base layer metering holes, and the tooth part buckling points are used for buckling with other tooth part buckling points or buckling into the tooth part metering holes.
10. The process of claim 1, wherein the step of manufacturing the stator of the motor with the partially separated tooth yoke comprises the steps of: and step B, punching six winding slotted holes which are uniformly distributed in the circumferential direction after each step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110029222.6A CN112366905B (en) | 2021-01-11 | 2021-01-11 | Manufacturing process of motor stator with locally separated tooth yoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110029222.6A CN112366905B (en) | 2021-01-11 | 2021-01-11 | Manufacturing process of motor stator with locally separated tooth yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112366905A CN112366905A (en) | 2021-02-12 |
| CN112366905B true CN112366905B (en) | 2021-03-19 |
Family
ID=74534727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110029222.6A Active CN112366905B (en) | 2021-01-11 | 2021-01-11 | Manufacturing process of motor stator with locally separated tooth yoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112366905B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922606B (en) * | 2021-12-10 | 2022-03-01 | 宁波震裕科技股份有限公司 | Manufacturing process of stator core of motor with multiple groups of step winding slots |
| CN113922607B (en) * | 2021-12-10 | 2022-03-01 | 宁波震裕科技股份有限公司 | Winding slot hole processing die set in motor stator core forming process |
| CN113949235B (en) * | 2021-12-21 | 2022-02-22 | 宁波震裕科技股份有限公司 | Manufacturing process of motor rotor iron core with special-shaped tooth part |
| CN114669969B (en) * | 2022-04-21 | 2023-03-24 | 苏州炽优装备科技有限公司 | Motor stator machining process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203522354U (en) * | 2013-10-29 | 2014-04-02 | 浙江联宜电机股份有限公司 | Stator structure with tooth portion and yoke portion separated from each other |
| CN107408872A (en) * | 2015-03-16 | 2017-11-28 | 黑田精工株式会社 | The manufacture method of laminated iron core and the manufacture device of laminated iron core |
| CN111293836A (en) * | 2018-12-06 | 2020-06-16 | 广东美的环境电器制造有限公司 | Processing technology of stator core |
-
2021
- 2021-01-11 CN CN202110029222.6A patent/CN112366905B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203522354U (en) * | 2013-10-29 | 2014-04-02 | 浙江联宜电机股份有限公司 | Stator structure with tooth portion and yoke portion separated from each other |
| CN107408872A (en) * | 2015-03-16 | 2017-11-28 | 黑田精工株式会社 | The manufacture method of laminated iron core and the manufacture device of laminated iron core |
| CN111293836A (en) * | 2018-12-06 | 2020-06-16 | 广东美的环境电器制造有限公司 | Processing technology of stator core |
Non-Patent Citations (1)
| Title |
|---|
| 电机转子冲片冲压工艺分析与级进模设计;史双喜;《锻压技术》;20150131;第40卷(第1期);第94-98页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112366905A (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112366905B (en) | Manufacturing process of motor stator with locally separated tooth yoke | |
| US4149309A (en) | Laminated core manufacture | |
| CN102111042B (en) | Method for manufacturing laminated core | |
| EP0847109A2 (en) | Laminated article comprising coupling elements of male-female type | |
| JP5379522B2 (en) | Manufacturing method of split core pieces | |
| US4438558A (en) | Laminated core manufacturing apparatus | |
| US8925715B2 (en) | Feeding apparatus for metal strips | |
| CN101828321A (en) | Laminated stator core, and manufacturing method therefor | |
| US20130062989A1 (en) | Method for connecting end sections of an annular laminated article and articles made therefrom | |
| JP3722539B2 (en) | Manufacturing method of annular laminated iron core and progressive mold apparatus | |
| US10236751B2 (en) | Method of manufacturing stator core | |
| JP2017147814A (en) | Manufacturing method of laminated core, and manufacturing apparatus of laminated core | |
| CN108472708A (en) | The processing method of laminate component | |
| JP4574255B2 (en) | Manufacturing method of split laminated core and progressive mold for manufacturing | |
| JP2007190570A (en) | Feeding method and feeding device in press machine | |
| JP3149217B2 (en) | Multi-row punching method for laminated iron sheet | |
| CN112260494B (en) | Manufacturing process of motor stator core | |
| US4280275A (en) | Apparatus for laminated core manufacture | |
| JP4749748B2 (en) | Iron core punching manufacturing method | |
| CN114453482B (en) | Manufacturing process of iron core | |
| JP5202577B2 (en) | Manufacturing method of stator laminated iron core | |
| CN107222067B (en) | Method and apparatus for manufacturing laminated core | |
| JP5016650B2 (en) | Method for manufacturing unit laminated body for annular laminated iron core | |
| JP7154264B2 (en) | CORE ELEMENT MANUFACTURING METHOD AND MANUFACTURING APPARATUS | |
| JP3497911B2 (en) | Method for manufacturing laminated iron core for motor and mold device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |