CN114629309A - Silicon steel sheet laminating device and stator twisted slot iron core silicon steel sheet laminating method - Google Patents
Silicon steel sheet laminating device and stator twisted slot iron core silicon steel sheet laminating method Download PDFInfo
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- CN114629309A CN114629309A CN202210251423.5A CN202210251423A CN114629309A CN 114629309 A CN114629309 A CN 114629309A CN 202210251423 A CN202210251423 A CN 202210251423A CN 114629309 A CN114629309 A CN 114629309A
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 174
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000010030 laminating Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 30
- 230000008859 change Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 24
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000004804 winding Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a silicon steel sheet laminating device and a stator twisted slot 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 rotatably connected with the positioning plate base, the chute positioning block is arranged on the circumferential surface of the positioning shaft, the stator twisted slot iron core silicon steel sheet structure is sequentially matched with the chute positioning block from the silicon steel sheet positioned at the bottom to the silicon steel sheet positioned 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 slot-twisting iron core silicon steel sheet is difficult to laminate, and the slot type is easy to change to generate slot type errors due to discharging.
Description
Technical Field
The invention relates to the technical field of stator iron core processing, in particular to a silicon steel sheet laminating device, a stator twisted slot iron core silicon steel sheet laminating method and a stator twisted slot iron core.
Background
The stator winding of the alternating current motor needs to be embedded in a wire slot, and after the stator is slotted, the magnetic resistance of the whole air gap circumference range is not uniform (the magnetic resistance of a slot part is large, the magnetic resistance of a tooth part is small) due to the non-uniform air gap, so that the back electromotive force contains tooth slot harmonic waves. After the stator slot twisting iron core forms the chute, the formed electromagnetic torque and the induced electromotive force can effectively weaken the additional torque caused by the tooth harmonic magnetic field and reduce the electromagnetic vibration and the noise, and the starting speed of the motor is faster and the rotating speed is faster under the condition of outputting smaller torque. For distributed windings, the stator is typically skewed by a predetermined angle, such as by one pitch; whether the stator core is in place or not directly influences the size of the tooth slot harmonic wave in the counter potential, and further influences the size torque.
The stator twisted slot iron core is provided with a plurality of slots along the circumferential direction at a central through hole close to the inside, and the stator twisted slot iron core is formed by welding or bonding a plurality of punching sheet parts after being stacked. The problem of uneven groove type of the iron core after the iron core is stacked exists in the processing of the stator twisted groove iron core. After the stator is machined, the slots need to be repaired repeatedly for two or three times due to poor slot type consistency, the workload is large, the iron core quality is poor, and the machining period is long. The slots of the stator twisted slot iron core are inclined at a certain angle with the axis of the stator twisted slot iron core along the axial direction of the stator twisted slot iron core, but the traditional clamp structure is only suitable for a straight tooth iron core. At present, the stator slot-twisting iron core generally adopts a slot-twisting groove structure, and the structure of the clamp is analyzed, so that the existing clamp is found to be required to be matched with a plurality of pins, the stacking is difficult, the unloading process can generate further deformation interference on the slot type, the slot type consistency is poor, and the processing efficiency is low. In order to avoid groove type errors generated in the discharging process, a groove repairing process is added in actual production, the requirement on the size of the groove type is met, time and labor are wasted, the capacity is small, and the cost is high.
Disclosure of Invention
The embodiment of the invention provides a silicon steel sheet laminating device, a stator twisted slot iron core silicon steel sheet laminating method and a stator twisted slot iron core, and the technical problems that the stator twisted slot iron core silicon steel sheet is difficult to laminate, and the slot type error is generated due to the fact that the slot type is changed easily due to discharging are effectively solved.
In order to solve the technical problems, the embodiment of the invention discloses a silicon steel sheet laminating device for laminating a stator twisted slot iron core silicon steel sheet structure, wherein the stator twisted slot iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, each silicon steel sheet is provided with a notch, 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 twisted slot 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, the chute positioning block is embedded into the notch of the silicon steel sheet to rearrange and position the silicon steel sheet, the slots are sequentially stacked to form slots of the stator twisted slot iron core silicon steel sheet structure, and the extending direction of the slots is consistent with that of the chute positioning blocks.
Further, fold and press the device still including the bearing subassembly of unloading, the bearing subassembly of unloading includes backup pad and elastic support piece, elastic support piece's one end with the fixed plate is connected, elastic support piece's the other end with the bottom surface of backup pad is connected, the top surface of backup pad is used for supporting the bottom surface of stator slot-twisted iron core silicon steel sheet structure.
Furthermore, the stripper plate 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 laminating device further comprises a pressing ring, the pressing ring is in contact with the top surface of the stator twisted slot iron core silicon steel sheet structure, and the pressing ring extrudes the stator twisted slot iron core silicon steel sheet structure in the direction towards the supporting plate.
Further, the laminating device also 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.
Furthermore, the center of the pressing ring is provided with an avoiding hole.
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 stator twisted slot iron core silicon steel sheet laminating method, which is applied to any one of the silicon steel sheet laminating devices, and comprises the following steps: sleeving the stator twisted slot iron core silicon steel sheet structure above the positioning shaft, so that the chute positioning block is matched with the notch of the adjacent silicon steel sheet; applying a load on the top surface of the stator twisted slot iron core silicon steel sheet structure until the chute positioning block is embedded into the notch of each silicon steel sheet; and applying a load on the bottom surface of the stator twisted slot iron core silicon steel sheet structure until the chute positioning block is separated from the notch of each silicon steel sheet.
The embodiment of the invention also discloses a stator twisted slot iron core which is prepared by adopting the method for laminating the silicon steel sheets of the stator twisted slot iron core.
The implementation of the invention has the following beneficial effects:
the silicon steel sheet laminating device is used for laminating a stator twisted slot iron core silicon steel sheet structure, the stator twisted slot iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, each silicon steel sheet is provided with a notch, the laminating device comprises a fixed plate, a positioning plate base, a positioning shaft and an inclined groove 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 rotatably connected with the positioning plate base, the inclined groove positioning block is arranged on the circumferential surface of the positioning shaft, the stator twisted slot iron core silicon steel sheet structure is sequentially matched with the inclined groove positioning block from the silicon steel sheet positioned at the bottom to the silicon steel sheet positioned at the top, the inclined groove positioning block is embedded into the notch of the silicon steel sheets so as to rearrange and position the silicon steel sheets, and the notches are sequentially stacked to form wire grooves of the stator twisted slot iron core silicon steel sheet structure, the extending direction of the wire groove is consistent with the extending direction of the chute positioning block. According to the stator twisted slot iron core silicon steel sheet structure, the positioning shaft is sleeved on the outer surface of the positioning plate base and is rotatably connected with the positioning plate base, when the stator twisted slot iron core silicon steel sheet structure is dismounted from the positioning shaft after the slot is twisted, the positioning shaft is rotatably connected with the positioning plate base, the positioning shaft can rotate in the discharging process, the displacement influence on the slot due to the matching of the slot and the chute positioning block is avoided, the accuracy of the slot is improved, the process of filing to ensure the slot shape is cancelled, and the material can be discharged without dismounting the positioning shaft and the chute positioning block in the subsequent discharging process, so that the laminating device can be put into the stator core twisting process of the next batch immediately after the material is discharged, the production efficiency of the device is improved, and the production cost is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structural view of a silicon steel sheet laminating apparatus 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 present invention.
Fig. 3 is a schematic structural view of a base of a positioning plate according to an embodiment of the present invention.
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.
Fig. 7 is a schematic top view of a supporting plate according to an embodiment of the present invention.
Fig. 8 is a schematic top view of a pressing ring according to an embodiment of the present invention.
Fig. 9 is a schematic step flow diagram of a method for laminating silicon steel sheets for a stator twisted slot iron core according to an embodiment of the present invention.
Wherein the reference numerals in the figures correspond to: 10-fixing plate, 11-bolt hole, 20-positioning plate base, 30-positioning shaft, 31-chute concave part, 40-chute positioning block, 401-positioning threaded hole, 50-unloading supporting 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 base and 80-positioning plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of 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 considered as limiting the present invention.
Furthermore, the terms "first", "second" 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 features defined as "first", "second" may explicitly or implicitly include one or more of those features, in the description of the invention "plurality" means two or more unless explicitly defined otherwise.
Fig. 1 is a schematic cross-sectional view of a silicon steel sheet laminating apparatus according to an embodiment of the present invention, and as shown in fig. 1, the silicon steel sheet laminating apparatus is in a state that a stator twisted slot iron core silicon steel sheet structure is not yet installed in the silicon steel sheet laminating apparatus, and the silicon steel sheet laminating apparatus is used for laminating the stator twisted slot iron core silicon steel sheet structure, so that a slot of the stator twisted slot iron core is inclined by a preset angle, and a twisted magnetic field satisfying a condition is provided by combining with a winding disposed on the stator twisted slot iron core. The stator twisted slot iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, 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 this. 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 in the center of the motor to provide a magnetic field for the rotor.
In an embodiment of the present invention, the laminating device includes a fixing plate 10, a positioning plate base 20, a positioning shaft 30 and a chute positioning block 40, referring to fig. 1, the positioning plate base 20 is disposed on the fixing plate 10, fig. 2 is a schematic structural view of the fixing plate according to an embodiment of the present invention, fig. 3 is a schematic structural view of the positioning plate base according to 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 a bottom surface of the fixing plate 10, the number of the bolt holes is 6, a threaded hole is also disposed on one surface of the positioning plate base 20 close to the fixing plate 10, the number of the threaded holes is also 6, and a stud of a bolt penetrates through the bolt hole and is in threaded connection with the threaded hole to dispose the positioning plate base 20 on the fixing plate 10, the positioning plate base 20 and the fixing plate 10 may be fixedly connected by other connection methods, which is not limited in the present invention.
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 rotatably connected with the positioning plate base 20, in the embodiment of the present 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 the shaft hole of the positioning shaft 30. The positioning shaft 30 is provided with a chute recess 31 on the circumferential surface thereof, and the chute positioning block 40 is accommodated in the chute recess 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 grooves of the silicon steel sheets to deflect each layer of the silicon steel sheets.
Fig. 4 is a schematic top view structural diagram of a positioning shaft according to an embodiment of the present invention, fig. 5 is a schematic front view structural diagram of a chute positioning block according to an embodiment of the present invention, fig. 6 is a schematic top view structural diagram of a chute positioning block according to an embodiment of the present invention, and 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, the chute positioning block 40 is provided with a positioning threaded hole 401, after the chute recess 31 is engaged 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 the circumferential surface of the positioning shaft 30, in the process of sleeving the stator twisted slot iron core silicon steel sheet structure on the positioning shaft 30, the stator twisted slot iron core silicon steel sheet structure is sequentially engaged with the chute positioning block 40 from the silicon steel sheet located at the bottom to the silicon steel sheet located at the top, 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.
Continuing to refer to fig. 1, the silicon steel sheet is sleeved on the positioning shaft 30, the notches are sequentially stacked to form the wire slots of the stator twisted slot iron core silicon steel sheet structure, the extending direction of the wire slots is consistent with the extending direction of the chute positioning block 40, so that the wire slots are consistent with the inclination angle of the chute positioning block 40, the skew of the stator twisted slot iron core silicon steel sheet structure is realized, after the skew of the wire slots is completed, the stator twisted slot iron core silicon steel sheet structure is detached from the positioning shaft 30, the positioning shaft 30 is rotatably 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 shifting influence on the wire slots caused by the mutual disengagement of the wire slots and the chute positioning block 40 is avoided, and the influence on the wire slots caused by the limit of the chute positioning block 40 in the horizontal direction is avoided, the precision of wire casing has been promoted, has cancelled the technology that needs the file of repairing in order to guarantee the cell type, and has unloaded the in-process and need not dismantle location axle 30, makes fold and press the device and can drop into the stator core skew process of next batch immediately after unloading, promoted the production efficiency of device, reduced manufacturing cost.
In the embodiment of the present invention, with continued reference to fig. 1, the laminating apparatus further includes a discharge support assembly 50, the discharge support assembly 50 includes a support plate 51 and an elastic support member 52, one end of the elastic support member 52 is connected to the fixed plate 10, the other end of the elastic support member 52 is connected to a bottom surface of the support plate 51, and a top surface of the support plate 51 is used for supporting the bottom surface of the stator slot-twisted iron core silicon steel sheet structure. After the stator twisted slot 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 twisted slot iron core silicon steel sheet, under the action of the load, the stator twisted slot 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, 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 member 52 is compressed and deformed, after the stator twisted slot iron core silicon steel sheet is twisted obliquely, the supporting plate 51 can be bounced by the elastic supporting member 52, and the deformation of the elastic supporting member 52 cannot change abruptly, therefore, the elastic supporting element 52 is slowly deformed, in the slow process, the trunking and the chute positioning block 40 are separated from each other, the positioning shaft 30 rotates relative to the positioning plate base 20, the influence of the horizontal limiting from the chute positioning block 40 on the trunking is avoided, the unloading process is more reliable and stable, and the trunking precision is improved. The support plate 51 is provided with a position avoiding groove 511, and the position avoiding groove 511 is used for avoiding the chute positioning block 40 so as to ensure that the relative movement between the chute positioning block 40 and the trunking in the unloading process is not interfered, and the accuracy of the trunking is improved. The size of the avoiding groove 511 is not smaller than the size of the projection of the part of the inclined groove positioning block engaged with the line groove in the horizontal direction.
With reference to fig. 1, in an embodiment of the present invention, the discharge plate further includes a sleeve and a guide post, the sleeve is disposed on a bottom surface of the support plate 51, fig. 7 is a schematic top view structural diagram of the support plate according to an embodiment of the present invention, as shown in fig. 7, the support plate 51 is further provided with a spring accommodating hole 512 and a sleeve hole 513, the sleeve hole 513 is used to fix the sleeve, the guide post is connected to the fixing plate 10, the sleeve is matched with the guide post, when the chute positioning block 40 is embedded into a notch of the silicon steel sheet to rearrange and position the silicon steel sheet and drive the discharge supporting assembly 50 to move toward the direction of the fixing plate 10, the sleeve and the guide post perform a limiting function, so as to improve reliability of the silicon steel sheet in the process of rearranging and positioning and improve reliability of the support plate 51 in the discharge process, the accuracy of the wire groove in the discharging process is guaranteed.
With continued reference to fig. 1, in the embodiment of the present invention, the laminating device further includes a pressing ring 60, a relief hole 62 is formed in the center of the pressing ring 60, a connection hole 61 is formed in the pressing ring, the pressing ring 60 contacts with the top surface of the stator twisted slot iron core silicon steel sheet structure, and the pressing ring 60 presses the stator twisted slot iron core silicon steel sheet structure in the direction toward the support plate 51. When the stator is turned round the grooved iron core silicon steel sheet and is placed the clamping ring 60 with after between the backup pad 51, it is right to apply a direction perpendicular to the top surface of clamping ring 60 the load of backup pad 51 top surface, the stator is turned round grooved iron core silicon steel sheet under the effect of this load, stator is turned round grooved iron core silicon steel sheet structure from being located the bottom the silicon steel sheet extremely be located the top the silicon steel sheet in proper order with chute locating piece 40 cooperation, chute locating piece 40 embedding in the notch of silicon steel sheet, from this, it is right to realize the silicon steel sheet is rearranged the location, forms the wire casing that the stator was turned round the grooved iron core.
With continued reference to fig. 1, in the embodiment of the present invention, the laminating apparatus further includes an upper mold base 70, a bottom surface of the upper mold base 70 contacts with a top surface of the pressing ring 60, and the pressing ring 60 is connected with the bottom surface of the upper mold base 70 through the connecting hole 61. The upper die holder 70 is disposed on the pressing ring 60, and the upper die holder 70 provides a pressure load to the pressing ring 60 due to the gravity effect because the mass of the upper die holder 70 is relatively large. After the stator twisted slot iron core silicon steel sheet is placed between the pressing ring 60 and the supporting plate 51, the top surface of the pressing ring 60 receives a pressure load from the upper die holder 70, the stator twisted slot iron core silicon steel sheet is under the action of the load, the stator twisted slot iron core silicon steel sheet structure sequentially matches 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 a wire slot of the stator twisted slot iron core.
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 an impact load on the silicon steel sheet of the stator slot-twisting iron core.
With continued reference to fig. 1, in an embodiment of the present invention, the pressing ring 60 is provided with an avoiding hole 62 at the center. Fig. 8 is a schematic top view of a pressing ring according to an embodiment of the present invention, and as shown in fig. 8, the pressing ring 60 is provided with a connection hole 61 to realize connection between the pressing ring 60 and the upper die holder 70 through the connection hole, and the avoiding hole 62 can prevent interference between the pressing ring 60 and the positioning plate base 20 to affect skew of the silicon steel sheets when the stator twisted slot iron 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.
With continued reference to fig. 1, in the embodiment of the present invention, the laminating device further includes a positioning plate 80, and the positioning plate 80 is connected to the top surface of the positioning plate base 20 to limit the movement amplitude of the upper die holder 70 towards the silicon steel sheet and position the pressing ring 60.
The embodiment of the invention also discloses a stator twisted slot iron core silicon steel sheet laminating method, and fig. 9 is a schematic flow chart of steps of the stator twisted slot iron core silicon steel sheet laminating method provided by the embodiment of the invention, the method is applied to any one of the silicon steel sheet laminating devices, and the method comprises the following steps:
and step S01, sleeving the stator twisted slot 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 40 is embedded into the notch of the silicon steel sheet after the chute positioning block is preliminarily positioned between the silicon steel sheet and the chute positioning block, so that subsequent load application is facilitated.
And S02, applying a load on the top surface of the stator twisted slot iron core silicon steel sheet structure until the inclined slot positioning block 40 is embedded into the notch of each silicon steel sheet.
In this step, the stator twisted slot iron core silicon steel sheet structure is sleeved in the positioning shaft 30, the stator twisted slot 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 in the notch of the silicon steel sheet, so that the silicon steel sheets are rearranged and positioned to form a slot of the stator twisted slot iron core.
And S03, applying a load to the bottom surface of the stator twisted slot iron core silicon steel sheet structure until the inclined slot positioning block 40 is separated from the notch of each silicon steel sheet.
In this step, after the skew of the slot is completed, when the stator twisted slot iron core silicon steel sheet structure is dismounted from the positioning shaft 30 by applying a load to the bottom surface of the stator twisted slot iron core silicon steel sheet structure, the positioning shaft 30 is rotatably connected with the positioning plate base 20, the positioning shaft 30 can rotate in the process of dismounting, due to the rotation of the positioning shaft 30, the influence of the displacement of the slot caused by the fact that the slot and the chute positioning block 40 are separated from each other is avoided, the precision of the slot is improved, the process of needing to be filed to ensure the slot is cancelled, and the slot can be dismounted without dismounting the positioning shaft 30 in the process of dismounting, so that the laminated device can immediately put into the stator core skew process of the next batch after the dismounting, the production efficiency of the device is improved, and the production cost is reduced.
The embodiment of the invention also discloses a stator twisted slot iron core which is prepared by adopting the method for laminating the silicon steel sheets of the stator twisted slot iron core. The advantages of the stator twisted slot core are as described above and will not be described in detail here.
The implementation of the invention has the following beneficial effects:
the silicon steel sheet laminating device is used for laminating a stator twisted slot iron core silicon steel sheet structure, the stator twisted slot 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 10, a positioning plate base 20, a positioning shaft 30 and a chute positioning block 40, the positioning plate base 20 is arranged on the fixed plate 10, the positioning shaft 30 is sleeved on the outer surface of the positioning plate base 20, the positioning shaft 30 is rotatably connected with the positioning plate base 20, the chute positioning block 40 is arranged on the circumferential surface of the positioning shaft 30, the stator twisted slot iron core silicon steel sheet structure is sequentially matched with the chute positioning block 40 from the silicon steel sheet at the bottom to the silicon steel sheet at the top, the chute positioning block 40 is embedded into the notches of the silicon steel sheets to position the silicon steel sheets, the notches are sequentially stacked to form a wire slot of the stator twisted slot iron core silicon steel sheet structure, and the extending direction of the wire slot is consistent with that of the chute positioning block 40. In the invention, the positioning shaft 30 is sleeved on the outer surface of the positioning plate base 20, the positioning shaft 30 is rotatably connected with the positioning plate base 20, when the skew of the wire slot is finished and the stator twisted slot iron core silicon steel sheet structure is detached from the positioning shaft 30, the positioning shaft 30 is rotatably connected with the positioning plate base 20, the positioning shaft 30 can rotate in the discharging process, thereby avoiding the displacement influence on the trunking caused by the cooperation of the trunking and the chute positioning block 40, improving the precision of the trunking, eliminating the process of needing filing to ensure trunking, and the subsequent discharging process can be carried out without disassembling the positioning shaft 30 and the chute positioning block 40, the laminating device can be immediately put into the stator core skew process of the next batch after unloading, the production efficiency of the device is improved, and the production cost is reduced.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (9)
1. A silicon steel sheet overlying device is used for overlying a stator twisted slot iron core silicon steel sheet structure, the stator twisted slot iron core silicon steel sheet structure comprises silicon steel sheets which are sequentially stacked, each silicon steel sheet is provided with a notch, and the stator twisted slot iron core silicon steel sheet structure is characterized by comprising a fixed plate, a positioning plate base, a positioning shaft and a chute positioning block, wherein 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 rotatably connected with the positioning plate base, the chute positioning block is arranged on the circumferential surface of the positioning shaft, the stator twisted slot iron core silicon steel sheet structure is sequentially matched with the chute positioning block from the silicon steel sheet positioned at the bottom to the silicon steel sheet positioned at the top, the chute positioning block is embedded into the notches of the silicon steel sheets to rearrange and position the silicon steel sheets, and the notches are sequentially stacked to form wire grooves of the stator twisted slot iron core silicon steel sheet structure, the extending direction of the wire groove is consistent with the extending direction of the chute positioning block.
2. A silicon steel sheet laminating apparatus according to claim 1, further comprising a discharging support assembly, wherein said discharging support assembly comprises a support plate and an elastic support member, one end of said elastic support member is connected to said fixing plate, the other end of said elastic support member is connected to the bottom surface of said support plate, and the top surface of said support plate is used for supporting the bottom surface of said stator slot-twisting iron core silicon steel sheet structure.
3. A silicon steel sheet laminating apparatus according to claim 2, wherein said stripper plate further comprises a sleeve and a guide post, said sleeve is disposed on a bottom surface of said supporting plate, said guide post is connected to said fixing plate, and said sleeve is engaged with said guide post.
4. A silicon steel sheet laminating apparatus according to claim 2, further comprising a pressing ring contacting a top surface of said stator twisted slot iron core silicon steel sheet structure, said pressing ring pressing said stator twisted slot iron core silicon steel sheet structure in a direction toward said supporting plate.
5. The silicon steel sheet laminating apparatus of claim 4, wherein the laminating apparatus further comprises an upper die base, a bottom surface of which is in contact with a top surface of the pressing ring.
6. The silicon steel sheet laminating apparatus of claim 4, wherein an avoiding hole is formed in the center of the pressing ring.
7. The silicon steel sheet laminating apparatus of claim 6, wherein the laminating apparatus further comprises a positioning plate connected to a top surface of the positioning plate base.
8. A method for laminating a silicon steel sheet for a stator twisted slot core, which is applied to the silicon steel sheet laminating apparatus according to any one of claims 1 to 7, the method comprising:
sleeving the stator twisted slot iron core silicon steel sheet structure above the positioning shaft, so that the skewed slot positioning block is matched with the notch of the adjacent silicon steel sheet;
applying a load on the top surface of the stator twisted slot iron core silicon steel sheet structure until the chute positioning block is embedded into the notch of each silicon steel sheet;
and applying a load on the bottom surface of the stator twisted slot iron core silicon steel sheet structure until the chute positioning block is separated from the notch of each silicon steel sheet.
9. A stator twisted slot iron core, which is characterized in that the stator twisted slot iron core is manufactured by adopting the silicon steel sheet laminating method of the stator twisted slot iron core according to claim 8.
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| CN114629309B (en) | 2024-01-12 |
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