CN218503622U

CN218503622U - Assembling and welding tool for split motor stator

Info

Publication number: CN218503622U
Application number: CN202222329122.8U
Authority: CN
Inventors: 苏晓东; 董琨; 张学君; 杨辉; 郭龙; 张胜
Original assignee: Qinghang Aerospace Beijing Technology Co ltd
Current assignee: Qinghang Aerospace Beijing Technology Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2023-02-21
Anticipated expiration: 2032-09-01

Abstract

The utility model provides a split type motor stator assembles welding frock, including base, apron, stator inner core support piece, base, apron, stator inner core support piece three's central line coincidence. The stator inner core supporting piece is located between the base and the cover plate, and the base is connected with the cover plate through the connecting assembly. The utility model relates to an assembling and welding tool, which has the roundness and cylindricity of the inner circle of a stator and can keep the roundness of the traditional stator; a certain protection force is welded in the transportation process, the split stator is not easy to break, and a motor winding is not damaged; the levelness of the whole end surface of the motor stator can be ensured; the quality and the service life of the motor are improved; the same advantages of the magnetic conduction gap in the stator are ensured.

Description

Assembling and welding tool for split type motor stator

Technical Field

The utility model belongs to the motor field relates to motor stator assembles equipment technique, specifically is a welding frock of assembling of split type motor stator.

Background

The electronic stator is an important component of the motor, is composed of a stator core, a stator winding and a machine base, and can be divided into a whole-piece stator and a split stator according to types. The split stator is a circular motor stator (also called an iron core) formed by splicing a plurality of split stators, and has the advantages of high motor slot filling rate (the slot filling rate refers to the proportion of the space occupied by a motor coil winding after winding in a slot and can reach more than 90%), small size of a stamping die, low investment cost of the die, high utilization rate of stator materials, convenience in maintenance of the motor winding, low cost and the like, so that the split motor stator is more and more widely applied.

At present, split type stator adds man-hour, adopts staple bolt and screw nut etc. to assemble fixedly more, and it has the following problem in several respects:

1. the roundness and cylindricity of the inner circle of the stator, particularly the cylindricity, the inner circle presents a bell mouth state after the stator is spliced and welded, and the upper opening and the lower opening are not very large, but the trend is presented;

2. the gap of the inner circle magnetic conduction port of the stator is not uniform;

3. the welding is inconvenient, needs the welding stator both ends earlier, dismantles the staple bolt and welds the middle part again, and highly inconsistent between every lamella stator after the welding, can not guarantee whole level.

Therefore, it is necessary to design a new assembling and welding tool for a split-type motor stator to avoid the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses a welding frock is assembled to split type motor stator, when it can guarantee the circularity and the cylindricity of circle in the stator, can also guarantee the roughness of seam between the adjacent split type motor stator and the levelness of the whole terminal surface of motor stator.

The technical scheme for realizing the purpose of the utility model is as follows: the utility model provides a split type motor stator's welding frock of assembling, includes base, apron, stator core support piece, and base, apron, stator core support piece three's central line coincide.

The stator inner core supporting piece is located between the base and the cover plate, and the base is connected with the cover plate through the connecting assembly.

Further, the base and the cover plate are both circular, and the stator core supporting piece is cylindrical. The diameter of the stator core supporting piece is larger than the diameter of an inner ring of the cover plate and smaller than the diameter of an outer ring of the cover plate.

Furthermore, a plurality of stator flattening end faces are uniformly arranged on the annular surface of the cover plate facing one side of the base in the circumferential direction, and pin holes are processed in the stator flattening end faces.

In an optional embodiment, the base is uniformly provided with matching surfaces corresponding to the stator flattening end surfaces one to one in the circumferential direction, and pin holes are processed on the matching surfaces.

In an alternative embodiment, the splice seam between adjacent 2 split stators is located in the gap between the adjacent 2 stator flattened end faces.

Still further, the above-mentioned coupling assembling includes bolt, fastening nut, nut gasket.

In an alternative embodiment, the bolt is a stud bolt, the middle of the bolt is provided with a pin positioning column, and the diameter of the pin positioning column is larger than that of the pin hole.

Further, the base, and/or the cover plate, and/or the stator core support are/is provided with a weight-removing groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a assemble welding frock has following advantage:

1. the base, the cover plate and the stator inner core supporting piece are matched, so that the same diameter and the same height of each section of the split stator can be ensured, and the roundness and the cylindricity of the inner circle of the stator can be ensured;

2. the welding seams are arranged in the gaps between the flattened end faces of the adjacent 2 stators, so that the welding can be facilitated, the welding quality of the seams is ensured to improve the strength of the welding seams, the split stators are ensured not to be easily scattered, the risk of damage of a motor winding is avoided, and the quality and the service life of the motor are improved;

3. the levelness of the upper end surface and the lower end surface of the motor stator can be ensured by the flattened end surface of the stator and the matching surface of the flattened end surface of the stator;

4. the stator flattening end face and the matching surface thereof are uniformly arranged, the sizes and the welding quality of all welding seams on the stator can be guaranteed to be the same, and meanwhile, the center positions of the split stators can be guaranteed to be overlapped by the stator inner core supporting piece after the split stators are spliced, so that the magnetic conduction gaps in the motor stator are guaranteed to be the same.

Drawings

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below.

Fig. 1 is an exploded view of an assembly welding tool for a split motor stator in an embodiment;

FIG. 2 is a schematic view of a split stator of a split motor stator in an embodiment;

FIG. 3 is an assembly diagram of an assembly welding tool in a specific embodiment;

wherein, 100, the base; 101. a mating surface; 200. a cover plate; 201. flattening the end face of the stator; 202. a gap; 300. a stator core support; 400. a connecting assembly; 401. a bolt; 402. fastening a nut; 403. a nut washer; 404. a pin positioning column; 500. a split stator; 3. a pin hole; 4. a weight removal groove; 9. and (6) splicing seams.

Detailed Description

The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications fall within the scope of the invention.

The present embodiment provides an assembling and welding tool for a split motor stator, wherein fig. 1 is an exploded view of the assembling and welding tool for the split motor stator, and fig. 2 is a schematic view of the split stator of the split motor stator; fig. 3 is an assembly diagram of a split motor stator.

Referring to fig. 1, the assembling and welding tool includes a base 100, a cover plate 200, and a stator core support 300, and center lines of the base 100, the cover plate 200, and the stator core support 300 are overlapped.

The stator core support 300 is located between the base 100 and the cover plate 200, and the base 100 and the cover plate 200 are connected by the connecting assembly 400.

The base 100 and the cover 200 are both circular, and may be in the form of a circular plate or a circular ring. In the present embodiment, the base 100 and the cover plate 200 are preferably circular rings, which can reduce the weight and cost of the welding tool and facilitate the holding by the operator. The stator core supporter 300 is selected to have a cylindrical shape, and the diameter of the stator core supporter 300 is greater than the diameter of the inner ring of the cap plate 200 and less than the diameter of the outer ring of the cap plate 200.

In one embodiment, referring to fig. 1, a plurality of stator flattening end faces 201 are uniformly arranged on the annular surface of the cover plate 200 facing the base 100 in the circumferential direction, and the pin holes 3 are processed on the stator flattening end faces 201. In this embodiment, it should be noted that all the lower end surfaces of the stator flattening end surfaces 201 need to be ensured on the same horizontal plane, so as to ensure the levelness of the upper end surface of the stator of the split motor.

In an alternative embodiment, as shown in fig. 1, the base 100 is uniformly provided with matching surfaces 101 corresponding to the stator flattened end surfaces 201 one to one in the circumferential direction, and the matching surfaces 101 are processed with pin holes 3. The connection assembly 400 connects the stator flattening end face 201 with the pin hole 3 on the mating face 101 thereof.

In an alternative embodiment, the splice 9 between adjacent 2 split stators 500 is located in the gap 202 between adjacent 2 stator flattened end faces 201. Disposing the splice seam 9 within the gap 202 can leave the splice seam 9 exposed to the exterior to facilitate the welding operation.

The connecting assembly 400 is used to connect the cover plate 200 and the base 100, and any connecting structure may be used, for example, any one of a bolt, a screw, and a screw rod may be used. In one embodiment, referring to fig. 1, the connection assembly 400 includes a bolt 401, a fastening nut 402, and a nut washer 403, in this embodiment, when the cover plate 200 is fixed to the base plate 100, the bolt 401 is inserted through the pin hole 3 of the cover plate 200 (or the cover plate 200 and the base plate 100), and then the other side of the cover plate 200 (or the cover plate 200 and the base plate 100) is fixed by the fastening nut 402 and the nut washer 403.

In an alternative embodiment, as shown in fig. 1 and 2, the bolt 401 is a stud bolt, and a pin positioning post 404 is disposed in the middle of the bolt 401. Because the higher special design of full rate of groove fixes a position stud is thin and middle thick structure in both ends to in the hole site of interlude easily and extrude split stator 500, make split stator 500's concatenation gap laminating, the diameter that also makes pin reference column 404 is greater than the diameter in pin hole 3, when connecting base 100 and apron 200, pin reference column 404 can flatten terminal surface 201 and the contact of fitting surface 101 with the stator, guarantee to assemble the levelness of welding frock, and then guarantee the levelness of split motor stator up end.

In an alternative embodiment, referring to fig. 1, the weight-removing grooves 4 are formed in the base 100, and/or the cover plate 200, and/or the stator core support 300, in this embodiment, on the basis of ensuring the strength and hardness of the assembly welding tool, the number, shape, and position of the weight-removing grooves 4 may be designed according to requirements, and are not limited in this embodiment.

In one embodiment, the components of the assembly welding tool are preferably made of stainless steel, and the inner core support 300 and the base 100 may be separated or integrated, which is not limited in this embodiment.

In this specific embodiment, the process of assembling the split motor stator by the assembling and welding tool is as follows:

first, the stator core supporter 300 is disposed on the base 100 (when the stator core supporter 300 and the base 100 are integrated, it is necessary to ensure that center lines of the two coincide with each other);

then, the split stators 500 (see fig. 2) are placed on the base 100 one by one, on one hand, the inner walls of the split stators 500 are tightly attached to the outer wall of the stator core support 300, and on the other hand, the adjacent 2 split stators 500 are contacted and spliced in the gap 202;

thirdly, placing the cover plate 200 on a split type motor stator before welding surrounded by the split stator 500, and enabling the stator flattening end surface 201 to be in contact with the upper end of the split stator 500 so as to ensure the levelness of the upper end surface;

finally, the cover plate 200 is fixedly connected with the base 100 through bolts 401 (stud bolts), fastening nuts 402 and nut spacers 403, the split motor stator is assembled and laser welding operation is carried out, and the tool is disassembled after welding.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. The utility model provides a split type motor stator's welding frock of assembling which characterized in that: the stator core support comprises a base (100), a cover plate (200) and a stator core support (300), wherein the center lines of the base (100), the cover plate (200) and the stator core support (300) are superposed;

the stator core support (300) is located between the base (100) and the cover plate (200), and the base (100) and the cover plate (200) are connected via a connection assembly (400).

2. The assembling and welding tool for split motor stators as claimed in claim 1, wherein: the base (100) and the cover plate (200) are both annular, and the stator core supporting piece (300) is cylindrical;

the diameter of the stator core support (300) is larger than the inner ring diameter of the cover plate (200) and smaller than the outer ring diameter of the cover plate (200).

3. The assembling and welding tool for the split motor stator according to claim 2, characterized in that: orientation base (100) one side the anchor ring of apron (200) is gone up circumference and is evenly equipped with a plurality of stators terminal surface (201) that flatten, just processing has cotter hole (3) on stator terminal surface (201) that flattens.

4. The assembling and welding tool for the split motor stator according to claim 3, wherein the assembling and welding tool comprises: the base (100) are gone up circumference and evenly be equipped with fitting surface (101) that the stator flattened terminal surface (201) one-to-one, just processing has cotter hole (3) on fitting surface (101).

5. The assembling and welding tool for the split motor stator according to claim 3 or 4, characterized in that: the splicing seams (9) between the 2 adjacent split stators (500) are positioned in the gaps (202) between the 2 adjacent stator flattening end faces (201).

6. The assembling and welding tool for the split motor stator according to claim 3, wherein the assembling and welding tool comprises: the connecting assembly (400) comprises a bolt (401), a fastening nut (402) and a nut washer (403).

7. The assembling and welding tool for split motor stators as claimed in claim 6, wherein: bolt (401) are stud, there is pin reference column (404) at the middle part of bolt (401), just the diameter of pin reference column (404) is greater than the diameter of pin hole (3).

8. The assembling and welding tool for the split motor stator according to claim 1, characterized in that: the base (100) and/or the cover plate (200) and/or the stator core support (300) are/is provided with a weight-reducing groove (4).