CN214544028U

CN214544028U - Stator assembly assembling tool

Info

Publication number: CN214544028U
Application number: CN202120554624.3U
Authority: CN
Inventors: 王旭; 张勇; 杨于; 汤卓
Original assignee: Changsha Qidian Automotive Products Co ltd
Current assignee: Changsha Qidian Automotive Products Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-10-29
Anticipated expiration: 2031-03-17

Abstract

The utility model relates to a stator assembly fixture. The stator assembly assembling tool comprises a transition sleeve and a press-fitting structure. The transition sleeve is provided with a first opening and a second opening which are opposite. At least part of the transition sleeve is a variable diameter section. The inner diameter of the reducing section is gradually reduced along the direction from the first opening to the second opening. The press mounting structure comprises a press mounting seat and a press mounting piece arranged on the press mounting seat. One end of the press fitting piece, which is far away from the press fitting seat, can extend into the transition sleeve through the first opening and is used for abutting against all the stator units in the transition sleeve. The press-fitting seat is used for driving the press-fitting piece to move along the direction of the first opening pointing to the second opening under the action of external force so as to press-fit the stator into the shell. The stator assembly assembling tool is used, so that the assembling quality of the stator assembly is guaranteed, and meanwhile, the assembling efficiency of the stator assembly is effectively improved.

Description

Stator assembly assembling tool

Technical Field

The utility model relates to a technical field that the commutator was made especially relates to a stator assembly fixture.

Background

The assembly of the stator assembly is a necessary processing procedure in the commutator motor processing process. In the commutator motor, the stator assembly comprises a cylindrical shell and a stator arranged in the shell, wherein the stator is mostly not formed by an integral inserted line, but is in an inserted structure and formed by splicing a plurality of stator units. Each stator unit comprises a stator core and a coil wound on the stator core.

During traditional stator assembly, utilize artifical manual mode to bind the concatenation formation stator of a plurality of stator units earlier usually, reuse the press with the stator press to the shell in, later to coil end processing of working a telephone switchboard. In order to ensure the press-fitting effect of the stator in the housing and reduce the scratch to the coil in the press-fitting process, the splicing effect between the plurality of stator units needs to be improved.

Therefore, in the traditional stator assembly assembling process, along with the promotion of the splicing effect among a plurality of stator units, the binding and splicing among a plurality of stator units are time-consuming and labor-consuming, and the assembling efficiency of the stator assembly is greatly influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a stator assembly assembling tool capable of improving the assembling efficiency of the stator assembly aiming at the problem of low assembling efficiency of the conventional stator assembly assembling mode.

A stator assembly assembling tool comprises a transition sleeve and a press-fitting structure;

the transition sleeve is provided with a first opening and a second opening which are opposite; at least part of the transition sleeve is a variable diameter section; the inner diameter of the variable-diameter section is gradually reduced along the direction from the first opening to the second opening;

the press-fitting structure comprises a press-fitting seat and a press-fitting piece arranged on the press-fitting seat; one end of the pressing piece, which is far away from the pressing seat, can extend into the transition sleeve through the first opening and is used for abutting against all the stator units in the transition sleeve;

the press-fitting seat is used for driving the press-fitting piece to move along the direction of the first opening pointing to the second opening under the action of external force so as to press-fit the stator into the shell.

In some of these embodiments, the press fitting member is a plurality of press fitting rods arranged at intervals along the circumference of the first opening; and one end of each press-fitting rod, which is far away from the press-fitting seat, is used for abutting against the contact position of any two adjacent coils in the transition sleeve.

In some of these embodiments, a plurality of said press-fitting bars extend the same length from said press-fitting seat portion.

In some of these embodiments, one end of each said press-fitting rod is removably connected to said press-fitting seat.

In some embodiments, the press-fitting seat comprises a bottom plate and a mounting part arranged along the circumferential direction of the first opening; one end of each press fitting rod is detachably connected with the mounting part.

In some of these embodiments, the bottom plate is a plate-like structure in the shape of a ring; the mounting part is arranged along the circumferential direction of the bottom plate; or

Threaded holes are formed in the positions, corresponding to the press-fitting rods, of the press-fitting seats; an external thread is formed at one end of each press-fitting rod; and one end of each press-fitting rod provided with the external thread is used for saying that the fish corresponds to the threaded hole, and is screwed with the threaded hole.

In some embodiments, the end of the transition sleeve having the second open end is provided with a limiting part; the limiting portion extends along the circumferential direction of the second opening and is used for being clamped on the annular step at one end of the shell, so that the transition sleeve and the shell are coaxially arranged.

In some embodiments, the outer wall of the transition sleeve, which is provided with one end of the first opening, is provided with a handheld portion arranged along the circumferential direction of the first opening.

In some of these embodiments, further comprising a support base; the supporting seat is used for placing the shell.

In some embodiments, the stator unit further comprises a positioning column for assisting in splicing and binding the plurality of stator units.

According to the stator assembly assembling tool, when the stator assembly needs to be assembled, a plurality of stator units are spliced and then bound to form a stator; placing the stator into a transition sleeve; placing the transition sleeve on a shell positioned on the workbench, and enabling one side of the transition sleeve with the second opening to face the direction of the shell; placing the press-fitting structure on the transition sleeve, and enabling one end of the press-fitting piece, which deviates from the press-fitting seat, to abut against all the stator cores; and applying a downward external force to the press-fitting seat to enable the press-fitting structure to push all the stator units to move downwards until the stator is completely pressed into the shell. Because the reducing section internal diameter of transition cover reduces along the direction of first opening directional second opening gradually, so when the stator moves down under the promotion of pressure equipment structure, will draw in each other along with the reduction of reducing section internal diameter between a plurality of stator units, so bind very tightly that need not bind when a plurality of stator units bind the concatenation, also can easily press-fit the stator in the shell. Therefore, the use of the stator assembly assembling tool has lower binding and splicing requirements on the plurality of stator units, so that the binding and splicing operations of the plurality of stator units are more time-saving and labor-saving, and the assembling efficiency of the stator assembly is improved while the assembling quality of the stator assembly is ensured.

Drawings

Fig. 1 is a schematic structural view of a stator assembly assembling tool according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a transition sleeve in the stator assembly assembling tooling shown in FIG. 1;

FIG. 3 is a schematic structural view of a press fitting seat in the stator assembly assembling tool shown in FIG. 1;

FIG. 4 is a schematic structural view of a support seat in the stator assembly assembling tooling shown in FIG. 1;

fig. 5 is a schematic structural view of a positioning column in the stator assembly assembling tool shown in fig. 1.

Description of reference numerals: 100. assembling a stator assembly; 110. a transition sleeve; 111. a first opening; 112. a second opening; 113. a diameter-changing section; 114. a limiting part; 115. a hand-held portion; 120. a press mounting structure; 121. a press mounting seat; 1211. a threaded hole; 1212. a base plate; 1213. an installation part; 122. pressing and assembling; 1221. pressing a rod; 130. a supporting seat; 140. a positioning column; 210. a housing; 220. a stator; 221. a stator unit.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present, unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or one or more intervening elements may also be present.

Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.

Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.

Fig. 1 shows a schematic structural diagram of a stator assembly assembling tool 100 according to an embodiment of the present invention. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention. The stator assembly assembling tool 100 is used for assisting in the assembling process of the stator assembly. The stator assembly includes a cylindrical housing 210 and a stator 220 press-fitted into the housing 210, the stator 220 is formed by splicing a plurality of stator units 221 along the circumferential direction of the housing 210, and each stator unit 221 includes a stator core and a coil wound on the stator core.

Referring to fig. 1, a stator assembly assembling tool 100 according to a preferred embodiment of the present invention includes a transition sleeve 110 and a press-fitting structure 120.

Referring to fig. 2, the transition sleeve 110 has a first opening 111 and a second opening 112 opposite to each other. At least a portion of the transition sleeve 110 is a reducer section 113. The inner diameter of the variable diameter section 113 is gradually reduced in a direction in which the first opening 111 is directed toward the second opening 112. Thus, the reducing section 113 has a cylindrical structure with a tapered inner diameter, and the transition sleeve 110 may have a cylindrical structure with a tapered inner diameter, or may have a cylindrical structure with a tapered inner diameter in at least one section.

Referring to fig. 1 again, the press-fitting structure 120 includes a press-fitting seat 121 and a press-fitting element 122 disposed on the press-fitting seat 121. The press fitting part 122 may be composed of a plurality of rod pieces, or may be composed of one or more bent plates, and the like, and the press fitting part 122 may be connected to the press fitting seat 121 by welding, screwing, clamping, and the like, or may be formed into an integrally formed structure with the press fitting seat 121 by mechanical cutting, casting, and the like. The end of the press fitting 122 facing away from the press fitting seat 121 can project through the first opening 111 into the transition sleeve 110 for abutment against all stator units 221 in the transition sleeve 110.

The press-fitting seat 121 is used for driving the press-fitting member 122 to move along the first opening 111 in a direction toward the second opening 112 under an external force so as to press-fit the stator 220 into the housing 210. The external force acting on the press-fitting seat 121 may be a punching force provided by a press, a striking force generated by striking the press-fitting seat 121 manually, or an acting force applied to the press-fitting seat 121 by other auxiliary tools or devices. The embodiment of the present invention mainly takes the pressing force provided by the pressing machine as the external force applied to the press-fitting seat 121 as an example for explanation.

For convenience of understanding, the following describes a process of using the stator assembly assembling tool 100 in a stator assembly assembling process:

(1) the plurality of stator units 221 are spliced and bundled according to a preset requirement to form the stator 220.

(2) The stator 220 is placed into the transition piece 110 through the first opening 111.

(3) The housing 210 is placed on the table of the press.

(4) The transition sleeve 110 with the stator 220 is placed at the end of the outer shell 210 facing away from the working platform, and the end of the transition sleeve 110 provided with the second opening 112 is ensured to face the outer shell 210. At this time, the first opening 111 and the second opening 112 are respectively located at the upper end and the lower end of the transition sleeve 110.

(5) The press-fitting structure 120 is placed over the transition sleeve 110, and the press-fitting 122 is abutted against all the stator units 221 in the transition sleeve 110 through the first opening 111.

(6) The press is started, and during the downward movement of the press ram, the press ram applies a downward force to the press-fitting seat 121, so that the press-fitting member 122 presses all the stator units 221 in the transition sleeve 110 into the outer shell 210.

Since the inner diameter of the transition sleeve 110 gradually decreases along the direction from the first opening 111 to the second opening 112, during the press-fitting of the stator 220 into the housing 210, the plurality of stator units 221 gradually converge along with the decrease of the inner diameter of the reducer section 113, so as to ensure that the quality requirement of the assembly of the stator 220 is met by the stator 220 press-fitted into the housing 210. Because in the stator 220 press-fitting process, the transition sleeve 110 has the function of folding the plurality of stator units 221, the requirement for splicing and binding the plurality of stator units 221 is reduced, binding is not too tight, and only the stator 220 is ensured not to be scattered or part of the stator units 221 are loosened in the process of placing the stator 220 into the transition sleeve 110, so that time and labor are saved, the use of the stator assembly assembling tool 100 is realized, the press-fitting quality of the stator 220 is ensured, and meanwhile, the assembling efficiency of the stator assembly is higher.

In some embodiments, press-fitting member 122 is a plurality of press-fitting rods 1221 spaced circumferentially about first opening 111. One end of each press-fitting rod 1221 remote from the press-fitting seat 121 is adapted to abut against a joint of any two adjacent stator cores in the transition sleeve 110. In the stator assembly assembling process, the press-fitting seat 121 can simultaneously drive all the press-fitting rods 1221 to move downwards under the action of an external force, and at the moment, each press-fitting rod 1221 can simultaneously push two adjacent stator units 221 to move downwards.

Therefore, the press fitting part 122 is provided with the plurality of press fitting rods 1221, so that the investment of machining materials of the press fitting part 122 can be reduced, the machining cost of the press fitting part 122 is reduced, the machining process of the press fitting part 122 is simplified, and the machining process is simpler while the machining cost of the stator assembly assembling tool 100 is lower.

Further, in some embodiments, the plurality of press-fitting rods 1221 extend the same length from the press-fitting seat 121. Therefore, in the use process of the stator assembly assembling tool 100, the end faces of the ends, deviating from the press-fitting seats 121, of the press-fitting rods 1221 are flush, so that the end faces of the stator cores pressed into the shell 210 by the press-fitting rods 1221 are also flush, which is beneficial to the improvement of the quality of the stator assembly.

Further, in some embodiments, one end of each of the press-fitting rods 1221 is detachably coupled to the press-fitting seat 121. One end of the press-fitting rod 1221 may be detachably connected to the press-fitting seat 121 by screwing, clipping, or using other auxiliary structures. The press fitting rod 1221 and the press fitting seat 121 are connected in a detachable connection mode, so that the press fitting rod 1221 can be more conveniently disassembled and assembled on the press fitting seat 121, and replacement of the press fitting rod 1221 after damage is facilitated.

Referring to fig. 3, in particular, a threaded hole 1211 is formed in the press-fitting seat 121 at a position corresponding to each press-fitting rod 1221. One end of each press-fitting rod 1221 is formed with an external thread. One end of each press-fitting rod 1221 having an external thread is inserted into the corresponding screw hole 1211 and is screwed with the screw hole 1211. Therefore, in the actual use process, only by screwing the press-fitting rod 1221, the press-fitting rod 1221 can be detached from the press-fitting seat 121 or the press-fitting rod 1221 can be installed on the press-fitting seat 121, so that the press-fitting rod 1221 and the press-fitting seat 121 can be detachably connected through the arrangement of the threaded hole 1211, and the disassembly and the assembly of the press-fitting rod 1221 on the press-fitting seat 121 are further simplified.

Further, in some embodiments, the press-fitting seat 121 includes a bottom plate 1212 and a mounting portion 1213 disposed along a circumferential direction of the first opening 111. The bottom plate 1212 may be a circular plate, a rectangular plate, a circular plate, a triangular plate, a profiled plate, or the like. One end of each press-fitting rod 1221 is detachably connected to the mounting portion 1213. The mounting portion 1213 provided along the circumferential direction of the first opening 111 is an annular structure. Specifically, the mounting portion 1213 is provided with a screw hole 1211 at a position corresponding to each press-fitting rod 1221, so that each press-fitting rod 1221 is screwed to the mounting portion 1213.

During the assembly process of the stator assembly, an operator can grasp the edge of the bottom plate 1212 to place the press-fitting structure 120 above the transition sleeve 110, or remove the press-fitting structure from the transition sleeve 110, so that the stator assembly assembling tool 100 is convenient to use. The installation portion 1213 ensures that a large connection area exists between the press-fitting rod 1221 and the base, so that the press-fitting rod 1221 is firmly connected to the base while a small amount of processing material is input, and the press-fitting structure 120 is light.

Further, in some embodiments, the bottom plate 1212 is a plate-like structure having an annular shape. The mounting portion 1213 is provided along the circumferential direction of the bottom plate 1212. The bottom plate 1212 is configured as an annular plate, which further reduces the material input of the press-fitting structure 120, so that the press-fitting structure 120 is more portable, and the stator assembly assembling tool 100 is more convenient to use.

Referring to fig. 2 again, in some embodiments, the end of the transition sleeve 110 having the second opening 112 is provided with a limiting portion 114. The limiting portion 114 extends along the circumferential direction of the second opening 112 and is used for being clamped on an annular step at one end of the outer shell 210, so that the transition sleeve 110 is coaxially arranged with the outer shell 210. The limiting portion 114 may be one or more convex strips extending along the circumferential direction of the first opening 111, or may be an annular convex rib disposed along the circumferential direction of the first opening 111. When the limiting portion 114 is provided with a plurality of protruding strips, the plurality of protruding strips are arranged at intervals along the circumferential direction of the first opening 111.

In the actual use process, when the transition sleeve 110 is placed on the outer shell 210, the limiting part 114 is only required to be clamped on the annular step of the outer shell 210, so that the transition sleeve 110 and the outer shell 210 can be aligned quickly, and the coaxiality between the transition sleeve 110 and the outer shell 210 is ensured, so that the assembling quality of the stator assembly is further improved, and meanwhile, the assembling efficiency of the stator assembly is further improved.

In some embodiments, the outer wall of the transition piece 110 at the end having the first opening 111 is provided with a grip 115. The hand-held portion 115 extends in the circumferential direction of the first opening 111. Thus, the handle portion 115 may have an arc-shaped structure extending along the circumferential direction of the first opening 111, or may have an annular structure disposed along the circumferential direction of the first opening 111. When the transition sleeve 110 needs to be placed on the outer shell 210 or the transition sleeve 110 needs to be taken off from the outer shell 210, an operator only needs to grip the hand-held portion 115 to carry out the handling of the transition sleeve 110. Therefore, the arrangement of the handheld portion 115 is beneficial to being grasped by hands of an operator, so that the stator assembly assembling tool 100 is convenient to use.

Referring to fig. 4, in some embodiments, the stator assembly assembling tool 100 further includes a supporting base 130. The support base 130 is used for placing the housing 210. In the process of pressing the stator 220 into the housing 210 by using the press, the support seat 130 is firstly placed on the workbench of the press, and then the housing 210 is placed on the support seat 130, so that the stamping stroke in the press pressing process can be shortened, and the assembly efficiency of the stator assembly can be further improved.

In some embodiments, the stator assembly assembling tool 100 further includes a positioning column 140 for assisting the splicing and binding of the plurality of stator units 221.

In the stator assembly assembling process, firstly, the plurality of stator units 221 are sequentially positioned on the surface of the positioning column 140 along the circumferential direction of the positioning column 140, and the plurality of positioning units are bound by using a pipe hoop, a binding belt and the like, so that the plurality of stator units 221 are spliced into the annular stator 220; then, the bundled stator 220 is placed in the transition sleeve 110 together with the positioning column 140; then loosely binding the stator 220, and taking out the positioning column 140; and then the plurality of stator units 221 in the transition sleeve 110 are press-fitted into the outer shell 210 by using the press-fitting structure 120. Therefore, due to the arrangement of the positioning columns 140, the splicing and binding of the stator units 221 are simpler and quicker, and the assembly efficiency of the stator assembly is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A stator assembly assembling tool is characterized by comprising a transition sleeve and a press-fitting structure;

2. The stator assembly assembling tool according to claim 1, wherein the press-fitting parts are a plurality of press-fitting rods arranged at intervals in the circumferential direction of the first opening; and one end of each press-fitting rod, which is far away from the press-fitting seat, is used for abutting against the contact position of any two adjacent coils in the transition sleeve.

3. The stator assembly assembling tool according to claim 2, wherein the press-fitting rods extend out of the press-fitting seat portion in the same length.

4. The stator assembly assembling tool according to claim 2, wherein one end of each press-fitting rod is detachably connected to the press-fitting seat.

5. The stator assembly assembling tool according to claim 4, wherein the press-fitting seat comprises a bottom plate and an installation part arranged along the circumferential direction of the first opening; one end of each press fitting rod is detachably connected with the mounting part.

6. The stator assembly assembling tool according to claim 5, wherein the bottom plate is of an annular plate-shaped structure; the mounting part is arranged along the circumferential direction of the bottom plate; or

7. The stator assembly assembling tool according to claim 1, wherein a limiting part is arranged at the end part of the transition sleeve with the second opening end; the limiting portion extends along the circumferential direction of the second opening and is used for being clamped on the annular step at one end of the shell, so that the transition sleeve and the shell are coaxially arranged.

8. The stator assembly assembling tool according to claim 1, wherein a handheld portion is arranged on an outer wall of one end, provided with the first opening, of the transition sleeve in the circumferential direction of the first opening.

9. The stator assembly assembling tool according to claim 1, further comprising a support seat; the supporting seat is used for placing the shell.

10. The stator assembly assembling tool of claim 1, further comprising positioning columns for assisting in splicing and binding the plurality of stator units.