CN211701771U

CN211701771U - Motor stator press fitting mould

Info

Publication number: CN211701771U
Application number: CN202020047020.5U
Authority: CN
Inventors: 时文兵; 李宗杰; 马立秋; 李健; 张蒙; 刚志雄; 左全意; 田壮; 刘海燕; 史文群
Original assignee: Nanyang Weite Explosion Protected Motor Co ltd
Current assignee: Nanyang Weite Explosion Protected Motor Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-10-16
Anticipated expiration: 2029-08-16
Also published as: CN211701772U; CN210137263U; CN211701773U

Abstract

The utility model belongs to the technical field of motor production detects, specifically disclose a motor stator pressure equipment mould, including cylindric mould body and the shirt rim of being connected with it, the outer peripheral surface of mould body is equipped with the scale. The mould can be suitable for stator press mounting operation of motors with various specifications and models, compared with the prior art, the preparation amount of the mould can be reduced by more than 90%, so that a large amount of mould preparation investment can be saved, the storage and maintenance cost and workload are greatly reduced, and the production cost of products is correspondingly reduced.

Description

Motor stator press fitting mould

Technical Field

The utility model belongs to the technical field of motor production detects, especially a motor stator pressure equipment mould.

Background

In the production process of the motor, generally, a stator core and a winding are manufactured to form a stator whole, then the stator is pressed in a motor shell, and finally the stator, a rotor and an end cover are assembled together. During stator press mounting, the most important is to ensure the axial position precision of the stator in the shell, so as to ensure the axial relative position precision of the stator and the rotor after the motor is assembled. If the axial position of the stator deviates, the accuracy of the axial relative position of the stator and the rotor is affected, which can cause the power reduction, current increase and loss increase of the motor after final assembly, namely, the overall performance of the motor is affected.

In large-scale motor production enterprises, a special mould is mostly adopted for press-fitting operation of a motor stator, so that higher production efficiency is achieved. The special clamping fixture used at present generally comprises an end plate and a cylindrical skirt edge with a set height which are integrally connected, wherein the clamping fixture is sleeved at the end part of a stator to be installed in the stator press-fitting process, then the stator is pressed into a motor shell through the clamping fixture, and when the inner end surface of the skirt edge is in close contact with the end surface of the motor shell. Although the tool is convenient to use and high in press fitting efficiency, in the production of various special motors, the number of the clamping tools is too large, the specifications and models of motors produced by some enterprises even reach 1400, and one or even a plurality of special clamping tools are required to be arranged in the production of each model and specification of motor, and thousands of sets of clamping tools are required to be arranged, so that the preparation investment of the clamping tools is large, the storage and maintenance investment and the workload are considerable, and the production cost of products is correspondingly increased.

Patent CN106787505A discloses a stator core press-fitting tire with winding, which comprises a cylindrical body, wherein a skirt is arranged on the upper edge of the cylindrical body, a plurality of grooves are arranged on the upper surface of the skirt, and magnetic steel is embedded in the grooves. After the stator is pressed and installed, the clamping fixture can be attracted away from a station through magnetic attraction, so that the effect of convenient and quick operation is achieved, but the problems existing in the production of various special motors cannot be solved.

Disclosure of Invention

The utility model provides a can overcome the above-mentioned defect that prior art exists effectively, reduce mould preparation and drop into, and convenient to use's motor stator pressure equipment mould.

Realize the utility model discloses a technical scheme that the purpose was taken is: the press fitting mould for the motor stator comprises a cylindrical mould body and a skirt edge connected with the cylindrical mould body, wherein scales are arranged on the outer circumferential surface of the mould body.

The mould body is fixedly connected with the skirt edge.

The outer diameter of the mould body is 0.3-5 mm smaller than the inner diameter of the motor shell to be pressed.

Realize the utility model discloses another kind of technical scheme that the purpose was taken is: the motor stator press fitting mould comprises a cylindrical mould body and a skirt edge connected with the cylindrical mould body, and a check ring is connected to the mould body through threads.

The outer circumference of the mould body is provided with scales through a groove.

Realize the utility model discloses a further technical scheme that the purpose was taken is: the motor stator press fitting mould comprises a cylindrical mould body and a skirt edge connected with the cylindrical mould body, and the lower end of the mould body is connected with a cylindrical short section.

The short section is in threaded connection with the clamping fixture body.

The short sections are sequentially connected.

Realize the utility model discloses a another technical scheme that the purpose was taken is: the press fitting mould for the motor stator comprises a cylindrical mould body and a skirt edge, wherein the mould body is connected with the skirt edge through a threaded connecting piece.

The threaded connecting piece comprises a plurality of groups of connecting bolts and jacking screws, the connecting bolts penetrate through holes formed in the skirt edge and are connected with threaded through holes formed in the mould body, the jacking screws are connected with threaded through holes formed in the skirt edge, and the lower ends of the jacking screws are in contact with the upper end face of the mould body.

The connecting bolt and the tightening screw are at least provided with 2 groups.

And a groove is arranged at the contact part of the upper end surface of the mould body and the lower end of the jacking screw.

The utility model discloses a motor stator pressure equipment mould through the simple improvement to current conventional mould structure for a mould can be applicable to the stator pressure equipment operation of multiple specification model motor, compares with prior art, and the mould is equipped with the volume and can reduces more than 90%, not only can practice thrift a large amount of moulds preparation investments, and the save that has significantly reduced moreover, maintenance cost and work load also correspondingly has reduced product manufacturing cost.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a third embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.

Detailed Description

Example one

As shown in fig. 1, the press fitting clamping fixture for the motor stator of the present invention includes a cylindrical clamping fixture body 101 and a skirt 102 connected thereto, wherein the outer circumferential surface of the clamping fixture body 101 is provided with scales 103, and the clamping fixture body 101 and the skirt 102 can be fixedly connected. The outer diameter of the mould body 101 can be 0.3-5 mm smaller than the inner diameter of the motor shell to be pressed.

When the press-fitting clamping fixture is used, a stator to be pressed is placed in a motor shell to be pressed, the clamping fixture body 101 is placed on a stator core to be pressed, the lower end face of the clamping fixture body 101 is in close contact with the outer end face of the stator core to be pressed, and then the stator core to be pressed is pressed into the motor shell to be pressed manually or through a press machine. In the pressing-in process, the scale 103 on the outer circumferential surface of the mould body 101 can be noted, when the scale value (namely the distance between the scale and the lower end surface of the mould body 101) which is flush with the outer end surface of the motor shell to be pressed reaches the set scale value (namely the set depth of the stator iron core to be pressed into the motor shell to be pressed), the pressing-in is finished, the pressing-in can be stopped, and the pressing-in mould can be taken down. Because the scale 103 on the outer circumferential surface of the mould body 101 is used as the criterion for pressing the stator core to be pressed into the motor shell to be pressed, the axial length of the mould body 101 can be far greater than the set depth for pressing the stator core to be pressed into the motor shell to be pressed, and therefore, a set of press fitting mould can meet the press fitting of the stator core of the motor with various models and specifications into the motor shell; meanwhile, the outer diameter of the clamping fixture body 101 is set to be 0.3-5 mm smaller than the inner diameter of the motor shell to be pressed, so that the clamping fixture is suitable for pressing the motor stators with different diameters and sizes, and the allocation amount of the pressing clamping fixture can be reduced by more than 90%.

Example two

As a further improvement of the technical scheme of the embodiment: the motor stator press fitting mould comprises a cylindrical mould body 201 and a skirt 202 connected with the cylindrical mould body, and a retainer ring 203 is connected to the mould body 201 in a threaded mode. When the clamping fixture is used, the retainer ring 203 can be adjusted to a set height, then a stator to be pressed is placed into a motor shell to be pressed, then the clamping fixture body 201 is placed on a stator core to be pressed, the lower end face of the clamping fixture body 201 is in close contact with the outer end face of the stator core to be pressed, the stator core to be pressed is pressed into the motor shell to be pressed manually or by a press machine, and the lower end face of the skirt edge 202 is pressed into contact with the upper end face of the motor shell, so that the pressing efficiency can be greatly improved. A groove can be axially arranged on the outer circumference of the mould body 101, and scales are arranged in the groove, so that the check ring 203 can be adjusted quickly without measuring by a ruler. The outer diameter of the mould body 201 can be set to be 0.3-5 mm smaller than the inner diameter of the motor shell to be pressed, so that the mould is suitable for pressing and assembling motor stators with different diameters and sizes.

EXAMPLE III

As a further improvement of the technical scheme of the embodiment: the motor stator press fitting mould comprises a cylindrical mould body 301 and a skirt 302 connected with the cylindrical mould body, wherein the lower end of the mould body 301 is connected with a cylindrical short section 303 with the same diameter as the mould body 301. The short section 303 is in threaded connection with the mould body 301. Therefore, a plurality of short sections 303 with different lengths can be prepared according to the number of motor model specifications produced by enterprises, and the matched short sections 303 are selected to be connected to the lower end of the mould body 301 according to the set press-fitting depth of the motor stator during use, so that the total length of the mould body 301 is equal to the press-fitting depth of the motor stator to be pressed, and the press-fitting operation can be implemented. In addition, according to the set press-fitting depth of the motor stator, 2 or more short sections 303 can be selected to be sequentially connected to the lower end of the mould body 301, so that the allocation amount of the mould body 301 and the skirt 302 of the mould body is further reduced, the investment of the mould is reduced, and the production cost of products is saved. In the press fitting clamping fixture of the embodiment, the outer diameters of the clamping fixture body 301 and the short section 303 can be set to be smaller than the inner diameter of a motor shell to be press fitted by 0.3-5 mm, so that the press fitting range of the clamping fixture for the stators of motors with different diameters and sizes is expanded, and the allocation amount of the clamping fixture is correspondingly reduced.

Example four

Realize the utility model discloses another kind of technical scheme of purpose is: the press fitting mould for the motor stator comprises a cylindrical mould body 401 and a skirt 402, wherein the mould body 401 is connected with the skirt 402 through a threaded connecting piece. The threaded connection may include a plurality of sets of connecting bolts 403 and tightening screws 406 (one set of connecting bolt 403 and tightening screw 406), the connecting bolts 403 and tightening screws 406 are provided in at least 2 sets, preferably 3 sets, and the connecting bolts 403 and tightening screws 406 are spaced apart from each other. The connecting bolt 403 penetrates through a through hole 405 formed in the skirt 402 to be connected with a threaded hole 404 formed in the mould body 401, and is used for adjusting the maximum distance between the mould body 401 and the skirt 402, so that the maximum height between the lower end surface of the mould body 401 and the lower end surface of the skirt 402 is determined, and the final press-fitting depth of the motor stator to be press-fitted is further determined; the jacking screw 406 is connected with a threaded through hole 408 arranged on the skirt 402, the lower end of the jacking screw 406 is in contact with the upper end surface of the mould body 401 and is used for jacking the mould body 401, and the distance between the jacking screw 406 and the skirt 402 is fixed in the maximum state; a concave groove 407 is formed at a contact part of the upper end surface of the clamping fixture body 401 and the lower end of the jacking screw 406 so as to prevent the clamping fixture body 401 from rotating and dislocating. Certainly, the outer diameter of the clamping fixture body 401 can be set to be 0.3-5 mm smaller than the inner diameter of the motor shell to be pressed, so that the range of the clamping fixture for pressing the motor stators with different diameters and sizes is further expanded, and the allocation amount of the clamping fixture is correspondingly reduced.

When the press fitting mold for the motor stator in the embodiment is used, the press fitting operation for the motor stator can be performed according to the using method of the conventional press fitting mold for the motor stator only by adjusting the distance between the lower end surface of the mold body 401 and the lower end surface of the skirt 402 to be equal to the set press fitting depth of the motor stator through the connecting bolts 403 and the jacking screws 406. Just because the distance between the lower end face of the mould body 401 and the lower end face of the skirt 402 can be adjusted at will, the press fitting mould can be suitable for the press fitting operation of the stators of motors with various specifications and models, thereby greatly reducing the equipment of the press fitting mould and saving the preparation investment, storage and maintenance workload of the mould.

Claims

1. The utility model provides a motor stator pressure equipment mould, includes cylindric mould body and the shirt rim of being connected with it, its characterized in that: the mould body is in threaded connection with a check ring.

2. A press fitting clamping fixture for a motor stator as claimed in claim 1, wherein: the outer circumference of the mould body is provided with scales through a groove.