CN114629309B - Silicon steel sheet laminating device and stator torsion slot iron core silicon steel sheet laminating method - Google Patents
Silicon steel sheet laminating device and stator torsion slot iron core silicon steel sheet laminating method Download PDFInfo
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- CN114629309B CN114629309B CN202210251423.5A CN202210251423A CN114629309B CN 114629309 B CN114629309 B CN 114629309B CN 202210251423 A CN202210251423 A CN 202210251423A CN 114629309 B CN114629309 B CN 114629309B
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 170
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000010030 laminating Methods 0.000 title claims abstract description 35
- 230000008569 process Effects 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 29
- 238000003475 lamination Methods 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 229910000746 Structural steel Inorganic materials 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000008707 rearrangement Effects 0.000 description 3
- 238000009966 trimming Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
- H02K15/026—Wound cores
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a silicon steel sheet laminating device and a stator torsion groove iron core silicon steel sheet laminating method, wherein the laminating device comprises a fixed plate, a positioning plate base, a positioning shaft and a chute positioning block, the positioning plate base is arranged on the fixed plate, the positioning shaft is sleeved on the outer surface of the positioning plate base, the positioning shaft is rotationally connected with the positioning plate base, the chute positioning block is arranged on the circumferential surface of the positioning shaft, the stator torsion groove iron core silicon steel sheet structure is sequentially matched with the chute positioning block from the silicon steel sheet at the bottom to the silicon steel sheet at the top, and the chute positioning block is embedded into a notch of the silicon steel sheet so as to rearrange and position the silicon steel sheet. The invention effectively solves the technical problems that the stator torsion groove iron core silicon steel sheet is difficult to stack, and the groove type is easy to change and the groove type error is generated when the stator torsion groove iron core silicon steel sheet is discharged.
Description
Technical Field
The invention relates to the technical field of stator core processing, in particular to a silicon steel sheet laminating device, a stator torsion groove iron core silicon steel sheet laminating method and a stator torsion groove iron core.
Background
The stator winding of the alternating current motor needs to be embedded in the wire slot, and after the stator is grooved, the magnetic resistance of the whole air gap circumference range is uneven (the magnetic resistance of the groove part is large and the magnetic resistance of the tooth part is small) due to uneven air gap, so that the counter potential contains cogging harmonic waves. After the stator torsion groove iron core forms a chute, the formed electromagnetic torque and induction electromotive force effectively weaken additional torque caused by tooth harmonic magnetic field, reduce electromagnetic vibration and noise, and the motor has higher starting speed and higher rotating speed under the condition of outputting smaller torque. For distributed windings, the stator is typically skewed by a predetermined angle, such as one pitch; whether the stator core skew is in place directly affects the magnitude of the cogging harmonics in the counter potential, and thus the dimensional torque.
The stator torsion slot core has a plurality of slots in the circumferential direction near the central through hole of the inside, and is typically formed by stacking a plurality of punched sheet parts and then welding or bonding. The processing of the stator torsion slot iron core always has the problem of uneven slot type of the iron core after lamination. After the stator is machined, the stator needs to be repeatedly repaired for two or three times due to poor uniformity of the groove type, so that the workload is large, the quality of the iron core is poor, and the machining period is long. The slots of the stator torsion slot iron core are inclined at a certain angle with the axis of the stator torsion slot iron core along the axial direction of the stator torsion slot iron core, but the traditional clamp structure is only applicable to straight tooth iron cores. At present, a torsion groove structure is generally adopted for a stator torsion groove iron core, and the structure of a clamp is analyzed, so that the existing clamp is required to be provided with a plurality of pins, is difficult to stack, is difficult to discharge, and can generate further deformation interference to a groove type in the discharging process, so that the uniformity of the groove type is poor, and the processing efficiency is low. In order to avoid the groove type error generated in the unloading process, the groove repairing process is adopted in actual production, so that the groove type size requirement is ensured, the time and the labor are wasted, the productivity is small, and the cost is high.
Disclosure of Invention
The embodiment of the invention provides a silicon steel sheet laminating device, a stator torsion slot iron core silicon steel sheet laminating method and a stator torsion slot iron core, which effectively solve the technical problems that the stator torsion slot iron core silicon steel sheet lamination is difficult, and slot type errors are easily generated due to slot type change during discharging.
In order to solve the technical problems, the embodiment of the invention discloses a silicon steel sheet laminating device which is used for laminating a stator torsion groove iron core silicon steel sheet structure, wherein the stator torsion groove iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, the silicon steel sheets are provided with notches, the laminating device comprises a fixed plate, a positioning plate base, a positioning shaft and a chute positioning block, the positioning plate base is arranged on the fixed plate, the positioning shaft is sleeved on the outer surface of the positioning plate base, the positioning shaft is rotationally connected with the positioning plate base, the chute positioning block is arranged on the circumferential surface of the positioning shaft, the stator torsion groove iron core silicon steel sheet structure is sequentially matched with the chute positioning block from the silicon steel sheets positioned at the bottom to the silicon steel sheets positioned at the top, the chute positioning block is embedded into the notches of the silicon steel sheets so as to rearrange and position the silicon steel sheets, the notches are sequentially stacked to form a wire slot of the stator torsion groove iron core silicon steel sheet structure, and the extending direction of the wire slot is consistent with the extending direction of the chute positioning block; the locating shaft is rotationally connected with the locating plate base, and can rotate in the unloading process, so that the shifting influence on the wire slot caused by the cooperation of the wire slot and the chute locating block is avoided, and the precision of the wire slot is improved.
Further, the lamination device further comprises a discharging bearing assembly, the discharging bearing assembly comprises a supporting plate and an elastic supporting piece, one end of the elastic supporting piece is connected with the fixing plate, the other end of the elastic supporting piece is connected with the bottom surface of the supporting plate, and the top surface of the supporting plate is used for supporting the bottom surface of the stator torsion groove iron core silicon steel sheet structure.
Further, the unloading bearing assembly further comprises a sleeve and a guide post, the sleeve is arranged on the bottom surface of the supporting plate, the guide post is connected with the fixing plate, and the sleeve is matched with the guide post.
Further, the lamination device further comprises a pressing ring, the pressing ring is in contact with the top surface of the stator torsion groove iron core silicon steel sheet structure, and the pressing ring presses the stator torsion groove iron core silicon steel sheet structure along the direction of the supporting plate.
Further, the laminating device further comprises an upper die holder, and the bottom surface of the upper die holder is in contact with the top surface of the pressing ring.
Further, an avoidance hole is formed in the center of the pressing ring.
Further, the laminating device further comprises a positioning plate, and the positioning plate is connected with the top surface of the positioning plate base.
The embodiment of the invention also discloses a method for laminating the stator torsion slot iron core silicon steel sheet, which is applied to any one of the silicon steel sheet laminating devices, and comprises the following steps: sleeving the stator torsion groove iron core silicon steel sheet structure above the positioning shaft, so that the chute positioning blocks are matched with the notches of the adjacent silicon steel sheets; applying a load on the top surface of the stator torsion-groove iron core silicon steel sheet structure until the chute positioning blocks are embedded into the notch of each silicon steel sheet; and a load is applied to the bottom surface of the stator torsion groove iron core silicon steel sheet structure until the chute positioning blocks are separated from the notch of each silicon steel sheet, the positioning shaft is rotationally connected with the positioning plate base, and the positioning shaft can rotate in the unloading process, so that the influence on the displacement of the wire groove caused by the cooperation of the wire groove and the chute positioning blocks is avoided, and the precision of the wire groove is improved.
The embodiment of the invention also discloses a stator torsion groove iron core, which is prepared by adopting the stator torsion groove iron core silicon steel sheet lamination method.
The implementation of the invention has the following beneficial effects:
the invention discloses a silicon steel sheet laminating device which is used for laminating a stator torsion groove iron core silicon steel sheet structure, wherein the stator torsion groove iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, the silicon steel sheets are provided with notches, the laminating device comprises a fixing plate, a locating plate base, a locating shaft and a chute locating block, the locating plate base is arranged on the fixing plate, the locating shaft is sleeved on the outer surface of the locating plate base, the locating shaft is rotationally connected with the locating plate base, the chute locating block is arranged on the circumferential surface of the locating shaft, the stator torsion groove iron core silicon steel sheet structure is sequentially matched with the chute locating block from the silicon steel sheets at the bottom to the silicon steel sheets at the top, the chute locating block is embedded into the notches of the silicon steel sheets to rearrange and locate the silicon steel sheets, the notches are sequentially stacked to form the stator torsion groove iron core silicon steel sheet structure, and the extending direction of a wire slot is consistent with the extending direction of the chute locating block. According to the invention, the positioning shaft is sleeved on the outer surface of the positioning plate base, the positioning shaft is rotationally connected with the positioning plate base, and when the stator torsion groove iron core silicon steel sheet structure is dismounted from the positioning shaft after the torsion of the wire groove is completed, the positioning shaft is rotationally connected with the positioning plate base, and the positioning shaft can rotate in the process of unloading, so that the influence on the displacement of the wire groove caused by the matching of the wire groove and the chute positioning block is avoided, the precision of the wire groove is improved, the process of trimming the wire groove is eliminated, and the need of trimming files to ensure the groove type is eliminated, and the positioning shaft and the chute positioning block are not required to be dismounted in the subsequent unloading process, so that the laminating device can be immediately put into the stator iron core torsion process of the next batch after the unloading, the production efficiency of the device is improved, and the production cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic cross-sectional view of a stacked silicon steel sheet device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a fixing plate according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a positioning board base according to an embodiment of the invention.
Fig. 4 is a schematic top view of a positioning shaft according to an embodiment of the invention.
Fig. 5 is a schematic front view of a chute positioning block according to an embodiment of the invention.
Fig. 6 is a schematic top view of a chute positioning block according to an embodiment of the invention.
Fig. 7 is a schematic top view of a support plate according to an embodiment of the invention.
Fig. 8 is a schematic top view of a pressing ring according to an embodiment of the invention.
Fig. 9 is a schematic step flow diagram of a method for laminating silicon steel sheets of a stator torsion slot iron core according to an embodiment of the present invention.
Wherein, the reference numerals in the figures correspond to: 10-fixed plate, 11-bolt hole, 20-locating plate base, 30-locating shaft, 31-chute concave part, 40-chute locating block, 401-locating threaded hole, 50-unloading bearing component, 51-supporting plate, 511-avoiding groove, 512-spring containing hole, 513-sleeve hole, 52-elastic supporting piece, 60-pressing ring, 61-connecting hole, 62-avoiding hole, 70-upper die holder and 80-locating plate.
Description of the embodiments
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 can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. 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 referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defining "first," "second," or the like, may explicitly or implicitly include one or more of such features, and in the description of the present invention, "a plurality" means two or more, unless otherwise specifically limited.
Fig. 1 is a schematic cross-sectional structure of a silicon steel sheet lamination device according to an embodiment of the present invention, as shown in fig. 1, in a state that the silicon steel sheet lamination device is not yet installed in a stator torsion slot iron core silicon steel sheet structure, where the silicon steel sheet lamination device is used for lamination of the stator torsion slot iron core silicon steel sheet structure, so that a wire slot of a stator torsion slot iron core is inclined by a preset angle, and then a torsion magnetic field meeting a condition is provided in combination with a winding provided on the stator torsion slot iron core. The stator torsion slot iron core silicon steel sheet structure comprises silicon steel sheets which are stacked in sequence, wherein the silicon steel sheets can be directly punched by a punch press or can be obtained by splicing a plurality of stator punching sheets, and the invention is not limited to the above. The silicon steel sheet is provided with a notch, and the notch is arranged on one side close to the center of the silicon steel sheet, so that the winding can be close to a rotor positioned at the center of the motor, and a magnetic field is provided for the rotor.
In the embodiment of the present invention, the stacking device includes a fixing plate 10, a locating plate base 20, a locating shaft 30 and a chute locating block 40, referring to fig. 1, the locating plate base 20 is disposed on the fixing plate 10, fig. 2 is a schematic structural view of the fixing plate provided in an embodiment of the present invention, fig. 3 is a schematic structural view of the locating plate base provided in an embodiment of the present invention, referring to fig. 2 and fig. 3, bolt holes 11 are disposed on the fixing plate 10, specifically, the bolt holes 11 are circumferentially and uniformly distributed on the bottom surface of the fixing plate 10, 6 bolt holes are disposed on the surface of the locating plate base 20 close to the fixing plate 10, and 6 threaded holes are also disposed on the threaded hole, and bolts penetrate through the bolt holes and are in threaded connection with the threaded holes to fix the locating plate base 20 on the fixing plate 10.
With continued reference to fig. 1, the positioning shaft 30 is sleeved on the outer surface of the positioning plate base 20, the positioning shaft 30 is rotationally connected with the positioning plate base 20, in the embodiment of the invention, the positioning shaft 30 is connected with the positioning plate base 20 through a needle bearing, an inner ring of the needle bearing is sleeved on the outer surface of the positioning plate base 20, and an outer ring of the needle bearing is in interference fit with a shaft hole of the positioning shaft 30. The circumferential surface of the positioning shaft 30 is provided with a chute concave part 31, the chute positioning block 40 is accommodated in the chute concave part 31 to form a protrusion with a preset angle on the outer surface of the positioning shaft 30, and the protrusion is matched with the wire groove of the silicon steel sheet to deflect each layer of the silicon steel sheet.
Fig. 4 is a schematic top view of a positioning shaft according to an embodiment of the present invention, fig. 5 is a schematic front view of a chute positioning block according to an embodiment of the present invention, fig. 6 is a schematic top view of a chute positioning block according to an embodiment of the present invention, as shown in fig. 4, fig. 5, and fig. 6, a chute recess 31 is provided on a circumferential surface of the positioning shaft 30, a positioning threaded hole 401 is provided on the chute positioning block 40, the chute recess 31 is matched with the chute positioning block 40 through the positioning threaded hole 401 of the chute positioning block 40, the chute positioning block 40 is distributed on a circumferential surface of the positioning shaft 30, and in a process of sleeving the stator twisted core silicon steel sheet structure into the positioning shaft 30, the stator twisted core silicon steel sheet structure is sequentially matched with the chute positioning block 40 from the silicon steel sheet located at the bottom to the silicon steel sheet located at the top, and the chute positioning block 40 is embedded into a notch of the silicon steel sheet, thereby positioning the silicon steel sheet.
With continued reference to fig. 1, the silicon steel sheet is sleeved on the positioning shaft 30, the slots are sequentially stacked to form the slots of the stator torsion groove silicon steel sheet structure, the extending direction of the slots is consistent with that of the chute positioning blocks 40, so that the slots are consistent with the inclination angle of the chute positioning blocks 40, the torsion of the stator torsion groove silicon steel sheet structure is realized, when the torsion of the slots is completed, the stator torsion groove silicon steel sheet structure is detached from the positioning shaft 30, the positioning shaft 30 is rotationally connected with the positioning plate base 20, the positioning shaft 30 can rotate in the unloading process, due to the rotation of the positioning shaft 30, the influence on the slots caused by the mutual detachment of the slots and the chute positioning blocks 40 is avoided, the influence on the slots caused by the limit of the chute positioning blocks 40 along the horizontal direction is avoided, the precision of the slots is improved, the process of needing to be repaired to ensure the slots is canceled, the positioning shaft 30 is not required to be detached in the unloading process, the production cost of the stator torsion groove structure can be immediately reduced after the stator torsion groove structure is stacked, and the production cost of the stator iron core is immediately lowered.
In the embodiment of the present invention, with continued reference to fig. 1, the stacking apparatus further includes a discharge supporting assembly 50, the discharge supporting assembly 50 includes a supporting plate 51 and an elastic supporting member 52, one end of the elastic supporting member 52 is connected to the fixing plate 10, the other end of the elastic supporting member 52 is connected to the bottom surface of the supporting plate 51, and the top surface of the supporting plate 51 is used for supporting the bottom surface of the stator torsion bar core silicon steel sheet structure. After the stator torsion groove iron core silicon steel sheet is placed on the top surface of the supporting plate 51, a load with a direction perpendicular to the top surface of the supporting plate 51 is applied to the top surface of the stator torsion groove iron core silicon steel sheet, under the action of the load, the stator torsion groove iron core silicon steel sheet structure is formed by sequentially matching the silicon steel sheet at the bottom to the silicon steel sheet at the top with the chute positioning block 40, the chute positioning block 40 is embedded into the notch of the silicon steel sheet, so that rearrangement positioning of the silicon steel sheet is realized, the unloading bearing assembly 50 is driven to move towards the direction of the fixing plate 10, the elastic supporting piece 52 is subjected to compression deformation, after the stator torsion groove iron core silicon steel sheet is twisted, the elastic supporting piece 52 can spring up the supporting plate 51, and the deformation of the elastic supporting piece 52 cannot be suddenly changed, so that the elastic supporting piece 52 is recovered to be deformed in a slow process, in the slow process, the chute positioning block 40 is separated from the chute positioning block 40, the chute positioning block is mutually separated from the chute positioning block, the chute positioning block is prevented from being influenced by the square positioning block 20, and the square positioning accuracy of the chute positioning block is prevented from being further influenced by the square positioning of the chute positioning block. The supporting plate 51 is provided with a clearance groove 511, and the clearance groove 511 is used for avoiding the chute positioning block 40, so that the relative movement between the chute positioning block 40 and the wire slot in the unloading process is not disturbed, and the precision of the wire slot is improved. The size of the clearance groove 511 is not smaller than the projected size of the portion of the chute positioning block engaged with the wire groove in the horizontal direction.
With continued reference to fig. 1, in the embodiment of the present invention, the unloading support assembly 50 further includes a sleeve and a guide post, the sleeve is disposed on the bottom surface of the support plate 51, fig. 7 is a schematic top view of the support plate provided in an embodiment of the present invention, as shown in fig. 7, a spring accommodating hole 512 and a sleeve hole 513 are further disposed on the support plate 51, the sleeve hole 513 is used for fixing the sleeve, the guide post is connected with the fixing plate 10, the sleeve is matched with the guide post, when the chute positioning block 40 is embedded into the notch of the silicon steel sheet to reorder and position the silicon steel sheet, and drives the unloading support assembly 50 to move in the direction of the fixing plate 10, the sleeve and the guide post have a limiting effect, so as to improve the reliability of the silicon steel sheet in the reorder and position process, and meanwhile, to improve the reliability of the support plate 51 in the unloading process, and ensure the precision of the wire slot in the unloading process.
With continued reference to fig. 1, in the embodiment of the present invention, the lamination device further includes a pressing ring 60, a avoiding hole 62 is provided at the center of the pressing ring 60, a connecting hole 61 is provided on the pressing ring, the pressing ring 60 contacts with the top surface of the stator torsion-groove iron core silicon steel sheet structure, and the pressing ring 60 extrudes the stator torsion-groove iron core silicon steel sheet structure along the direction toward the support plate 51. After the stator torsion groove iron core silicon steel sheet is placed between the pressing ring 60 and the supporting plate 51, a load with a direction perpendicular to the top surface of the supporting plate 51 is applied to the top surface of the pressing ring 60, and under the action of the load, the stator torsion groove iron core silicon steel sheet structure is matched with the chute positioning block 40 sequentially from the silicon steel sheet at the bottom to the silicon steel sheet at the top, and the chute positioning block 40 is embedded into the notch of the silicon steel sheet, so that rearrangement positioning of the silicon steel sheet is achieved, and a wire slot of the stator torsion groove iron core is formed.
With continued reference to fig. 1, in an embodiment of the present invention, the stacking apparatus further includes an upper die holder 70, a bottom surface of the upper die holder 70 contacts with a top surface of the pressing ring 60, and the pressing ring 60 is connected to the bottom surface of the upper die holder 70 through the connection hole 61. The upper die holder 70 is disposed on the press ring 60, and the upper die holder 70 provides a pressure load to the press ring 60 due to gravity because the upper die holder 70 has a relatively large mass. After the stator torsion groove iron core silicon steel sheet is placed between the pressing ring 60 and the supporting plate 51, a pressure load from the upper die holder 70 is received on the top surface of the pressing ring 60, and under the action of the load, the stator torsion groove iron core silicon steel sheet structure is matched with the chute positioning block 40 in sequence from the silicon steel sheet at the bottom to the silicon steel sheet at the top, and the chute positioning block 40 is embedded into the notch of the silicon steel sheet, so that rearrangement positioning of the silicon steel sheet is realized, and the wire slot of the stator torsion groove iron core is formed.
In an embodiment of the present invention, a spring sleeve is disposed between the upper die holder 70 and the fixing plate 10 to support the upper die holder 70, so as to prevent the upper die holder 70 from directly acting on the pressing ring, and avoid impact load on the stator torsion-groove iron core silicon steel sheet.
With continued reference to fig. 1, in an embodiment of the present invention, the center of the pressing ring 60 is provided with a relief hole 62. Fig. 8 is a schematic top view of a pressing ring according to an embodiment of the present invention, as shown in fig. 8, the pressing ring 60 is provided with a connection hole 61, so that connection between the pressing ring 60 and the upper die holder 70 is achieved through the connection hole, and the avoiding hole 62 can prevent the pressing ring 60 from interfering with the positioning plate base 20 to affect the skew of the silicon steel sheet in the process that the stator torsion-groove iron core silicon steel sheet structure sequentially cooperates with the chute positioning block 40 from the silicon steel sheet located at the bottom to the silicon steel sheet located at the top.
With continued reference to fig. 1, in an embodiment of the present invention, the stacking apparatus further includes a positioning plate 80, where the positioning plate 80 is connected to the top surface of the positioning plate base 20, so as to limit the movement of the upper die holder 70 to the silicon steel sheet, and position the pressing ring 60.
The embodiment of the invention also discloses a method for laminating the silicon steel sheets of the stator torsion groove iron core, and fig. 9 is a schematic step flow diagram of the method for laminating the silicon steel sheets of the stator torsion groove iron core, which is applied to any one of the silicon steel sheet laminating devices, and comprises the following steps:
and S01, sleeving the stator torsion-groove iron core silicon steel sheet structure above the positioning shaft 30, so that the chute positioning block 40 is matched with the notch of the adjacent silicon steel sheet.
In this step, the chute positioning block and the silicon steel sheet are initially positioned, so that the chute positioning block 40 is conveniently embedded into the notch of the silicon steel sheet after the load is applied subsequently.
And S02, applying a load to the top surface of the stator torsion-groove iron core silicon steel sheet structure until the chute positioning blocks 40 are embedded into the notch of each silicon steel sheet.
In this step, the stator torsion groove iron core silicon steel sheet structure is sleeved into the positioning shaft 30, the stator torsion groove iron core silicon steel sheet structure is sequentially matched with the chute positioning block 40 from the silicon steel sheet positioned at the bottom to the silicon steel sheet positioned at the top, and the chute positioning block 40 is embedded into the notch of the silicon steel sheet, so that the silicon steel sheet is rearranged and positioned to form the wire slot of the stator torsion groove iron core.
And S03, applying a load on the bottom surface of the stator torsion-groove iron core silicon steel sheet structure until the chute positioning blocks 40 are separated from the notch of each silicon steel sheet.
In this step, after the wire slot is skewed, load is applied to the bottom surface of the stator torsion groove iron core silicon steel sheet structure, when the stator torsion groove iron core silicon steel sheet structure is dismounted from the positioning shaft 30, the positioning shaft 30 is rotationally connected with the positioning plate base 20, in the process of unloading, the positioning shaft 30 can rotate, and due to the rotation of the positioning shaft 30, the influence on the displacement of the wire slot caused by the mutual separation of the wire slot and the chute positioning block 40 is avoided, the precision of the wire slot is improved, the process of repairing files to ensure the slot type is cancelled, and the positioning shaft 30 is not required to be dismounted in the unloading process, so that the laminating device can be immediately put into the stator iron core skew process of the next batch after unloading, the production efficiency of the device is improved, and the production cost is reduced.
The embodiment of the invention also discloses a stator torsion groove iron core, which is prepared by adopting the stator torsion groove iron core silicon steel sheet lamination method. The advantages of the stator torsion slot core are as described above and are not described in detail herein.
The implementation of the invention has the following beneficial effects:
the invention discloses a silicon steel sheet laminating device which is used for laminating a stator torsion groove iron core silicon steel sheet structure, wherein the stator torsion groove iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, the silicon steel sheets are provided with notches, the laminating device comprises a fixing plate 10, a locating plate base 20, a locating shaft 30 and a chute locating block 40, the locating plate base 20 is arranged on the fixing plate 10, the locating shaft 30 is sleeved on the outer surface of the locating plate base 20, the locating shaft 30 is rotationally connected with the locating plate base 20, the chute locating block 40 is arranged on the circumferential surface of the locating shaft 30, the stator torsion groove iron core silicon steel sheet structure is sequentially matched with the chute locating block 40 from the silicon steel sheets positioned at the bottom to the silicon steel sheets positioned at the top, the chute locating block 40 is embedded into the notches of the silicon steel sheets so as to rearrange and locate the silicon steel sheets, the notches are sequentially stacked to form a wire slot of the stator torsion groove iron core silicon steel sheet structure, and the extending direction of the wire slot is consistent with the extending direction of the chute locating block 40. According to the invention, the positioning shaft 30 is sleeved on the outer surface of the positioning plate base 20, the positioning shaft 30 is rotationally connected with the positioning plate base 20, when the stator torsion groove iron core silicon steel sheet structure is dismounted from the positioning shaft 30 after the torsion of the wire groove is completed, the positioning shaft 30 is rotationally connected with the positioning plate base 20, the positioning shaft 30 can rotate in the process of unloading, the displacement influence on the wire groove caused by the cooperation of the wire groove and the chute positioning block 40 is avoided, the precision of the wire groove is improved, the process of trimming files to ensure the groove type is omitted, and the stator iron core torsion process of the next batch can be immediately input after the lamination device is dismounted in the subsequent unloading process, so that the production efficiency of the device is improved, and the production cost is reduced.
The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (8)
1. The silicon steel sheet laminating device is used for laminating a stator torsion groove iron core silicon steel sheet structure, the stator torsion groove iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, the silicon steel sheets are provided with notches, and the silicon steel sheet laminating device is characterized by comprising a fixed plate, a locating plate base, a locating shaft and a chute locating block, wherein the locating plate base is arranged on the fixed plate, the locating shaft is sleeved on the outer surface of the locating plate base in a sleeved mode, the locating shaft is rotationally connected with the locating plate base, the chute locating block is fixedly arranged on the circumferential surface of the locating shaft, the stator torsion groove iron core silicon steel sheet structure is matched with the chute locating block sequentially from the silicon steel sheets at the bottom to the silicon steel sheets at the top, the chute locating block is embedded into the notches of the silicon steel sheets so as to rearrange and locate the silicon steel sheets, the notches are sequentially stacked to form a wire slot of the stator torsion groove iron core silicon steel sheet structure, and the extending direction of the wire slot is consistent with the extending direction of the chute locating block; the locating shaft is rotationally connected with the locating plate base, and can rotate in the unloading process, so that the shifting influence on the wire slot caused by the cooperation of the wire slot and the chute locating block is avoided, and the precision of the wire slot is improved.
2. The silicon steel sheet lamination device according to claim 1, further comprising a discharge supporting member, wherein the discharge supporting member comprises a supporting plate and an elastic supporting member, one end of the elastic supporting member is connected with the fixing plate, the other end of the elastic supporting member is connected with the bottom surface of the supporting plate, and the top surface of the supporting plate is used for supporting the bottom surface of the stator torsion channel iron core silicon steel sheet structure.
3. The silicon steel sheet lamination device according to claim 2, wherein the unloading bearing assembly further comprises a sleeve and a guide post, the sleeve is arranged on the bottom surface of the supporting plate, the guide post is connected with the fixing plate, and the sleeve is matched with the guide post.
4. The silicon steel sheet lamination device according to claim 2, further comprising a pressing ring that contacts a top surface of the stator slot-twisting core silicon steel sheet structure, the pressing ring pressing the stator slot-twisting core silicon steel sheet structure in a direction toward the support plate.
5. The silicon steel sheet lamination device according to claim 4, further comprising an upper die holder, a bottom surface of the upper die holder being in contact with a top surface of the press ring.
6. The silicon steel sheet lamination device according to claim 4, wherein the center of the pressing ring is provided with a avoiding hole.
7. The silicon steel sheet lamination device according to claim 6, further comprising a positioning plate connected to a top surface of the positioning plate base.
8. A method for laminating a stator torsion bar core silicon steel sheet, wherein the method is applied to the silicon steel sheet laminating device as set forth in any one of claims 1 to 7, and the method comprises:
sleeving the stator torsion groove iron core silicon steel sheet structure above the positioning shaft, so that the chute positioning blocks are matched with the notches of the adjacent silicon steel sheets;
applying a load on the top surface of the stator torsion-groove iron core silicon steel sheet structure until the chute positioning blocks are embedded into the notch of each silicon steel sheet;
and a load is applied to the bottom surface of the stator torsion groove iron core silicon steel sheet structure until the chute positioning blocks are separated from the notch of each silicon steel sheet, the positioning shaft is rotationally connected with the positioning plate base, and the positioning shaft can rotate in the unloading process, so that the influence on the displacement of the wire groove caused by the cooperation of the wire groove and the chute positioning blocks is avoided, and the precision of the wire groove is improved.
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| CN202210251423.5A CN114629309B (en) | 2022-03-15 | 2022-03-15 | Silicon steel sheet laminating device and stator torsion slot iron core silicon steel sheet laminating method |
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| CN202210251423.5A CN114629309B (en) | 2022-03-15 | 2022-03-15 | Silicon steel sheet laminating device and stator torsion slot iron core silicon steel sheet laminating method |
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| CN114629309A (en) | 2022-06-14 |
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