CN216904617U

CN216904617U - Assembly tool

Info

Publication number: CN216904617U
Application number: CN202220241892.4U
Authority: CN
Inventors: 江国朝; 黄艺华; 刘朝品; 禹广华
Original assignee: Shenzhen Casic Motor System Co ltd
Current assignee: Shenzhen Casic Motor System Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-07-05
Anticipated expiration: 2032-01-28

Abstract

The utility model discloses an assembly tool for assembling a motor, wherein the motor comprises a rotor core and a rotating shaft, the rotor core is provided with an assembly hole, the assembly tool comprises a tool frame, a first fixing assembly and a second fixing assembly, the tool frame comprises a bottom plate and a top plate which are oppositely arranged, and the first fixing assembly is movably arranged on the surface of the bottom plate and is used for pre-fixing the rotor core; the second fixing assembly is arranged on the top plate and is used for pre-fixing the rotating shaft; first fixed subassembly drive rotor core orientation the pivot motion, so that the pivot with rotor core butt, and make the axis of pivot with the axis collineation of pilot hole, roof towards the bottom plate motion, with the drive the pivot is impressed in the pilot hole. The technical scheme of the utility model aims to solve the problem of centralization during interference assembly of the rotor core and the rotating shaft and improve the assembly quality and the assembly efficiency of the rotor core and the rotating shaft.

Description

Assembly tool

Technical Field

The utility model relates to the technical field of tools, in particular to an assembling tool.

Background

Be equipped with the pilot hole in the current rotor core, the pivot is inserted and is located the pilot hole. In order to ensure the reliability of fixing the rotating shaft and the rotor core, the rotating shaft and the rotor core are usually assembled in an interference fit manner. However, the interference fit of the rotor core and the rotating shaft also increases the assembling difficulty of the rotor core and the rotating shaft, and the assembling quality and the assembling efficiency of the rotor core and the rotating shaft are affected if the rotor core and the rotating shaft are difficult to be righted during assembling.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an assembly tool, which aims to solve the problem of centralization during interference assembly of a rotor core and a rotating shaft and improve the assembly quality and the assembly efficiency of the rotor core and the rotating shaft.

In order to achieve the above object, the assembly fixture provided by the present invention is used for assembling a motor, wherein the motor comprises a rotor core and a rotating shaft, the rotor core is provided with an assembly hole, and the assembly fixture comprises:

the tool rack comprises a bottom plate and a top plate which are oppositely arranged, and the top plate moves towards the direction close to or far away from the bottom plate;

the first fixing assembly is movably arranged on the surface, facing the top plate, of the bottom plate and is used for pre-fixing the rotor core; and

the second fixing assembly is arranged on the surface, facing the bottom plate, of the top plate and is used for pre-fixing the rotating shaft;

first fixed subassembly drive rotor core orientation the pivot motion, so that the pivot with the rotor core butt, and make the axis of pivot with the axis collineation setting of pilot hole, the roof orientation is close to the direction motion of bottom plate, with the drive the pivot is impressed in the pilot hole.

In an embodiment of the present invention, the first fixing member includes:

the lower die holder is fixed on the bottom plate;

the guide seat is sleeved at the end part of the lower die seat, an accommodating hole is formed in the end face, facing the top plate, of the guide seat, the accommodating hole is used for accommodating the rotor core, a through hole is further formed in the bottom wall of the accommodating hole, and the aperture of the through hole is smaller than that of the accommodating hole; and

the first positioning piece is arranged at the bottom of the accommodating hole and is abutted against the end part of the rotor core, and the first positioning piece is provided with a first positioning hole for communicating the accommodating hole with the through hole;

the guide seat can drive the first positioning piece and the rotor core to move relative to the lower die seat.

In an embodiment of the present invention, the first fixing assembly further includes a second elastic member, and the second elastic member is disposed between the lower die base and the guide base.

In an embodiment of the present invention, a positioning protrusion is convexly disposed on a surface of the first positioning element facing the rotor core, the positioning protrusion surrounds an edge of the through hole, and the positioning protrusion is inserted into the assembling hole.

In an embodiment of the present invention, the second fixing member includes:

the upper die holder is fixed on the surface of the top plate facing the bottom plate, and a fixing hole is formed in the end face of the upper die holder facing the bottom plate; and

the second positioning piece is arranged in the fixing hole, a second positioning hole is formed in the end face, facing the bottom plate, of the second positioning piece, and the second positioning hole is used for pre-fixing the rotating shaft.

In an embodiment of the utility model, the first positioning element and the second positioning element are made of metal.

In an embodiment of the present invention, the assembly fixture further includes a guide structure, and the guide structure includes:

the guide sleeve penetrates through two opposite surfaces of the top plate; and

and one end of the guide post is fixed with the bottom plate, and the other end of the guide post is inserted into the guide sleeve.

In an embodiment of the present invention, the number of the guide sleeves and the guide pillars is plural, one guide pillar is inserted into one guide sleeve, and the plurality of guide sleeves are uniformly distributed at intervals along the circumferential direction of the top plate.

In an embodiment of the utility model, the guide structure further includes a first elastic member, the first elastic member is sleeved on the surface of the guide pillar, and two ends of the first elastic member respectively elastically abut against the bottom plate and the guide sleeve.

In an embodiment of the utility model, the assembly tool further includes a driving mechanism, the driving mechanism is arranged on one side of the top plate far away from the bottom plate, and the driving mechanism drives the top plate to move towards the direction of the bottom plate.

According to the technical scheme, the assembly tool is used for assembling the rotor core and the rotating shaft of the motor, wherein the rotor core is provided with the assembly hole. The assembly tool comprises a tool frame, a first fixing assembly and a second fixing assembly, wherein the tool frame comprises a bottom plate and a top plate which are oppositely arranged, and the top plate can move towards the direction close to or far away from the bottom plate; the first fixing assembly is arranged on the surface, facing the top plate, of the bottom plate and used for pre-fixing the rotor iron core; the second fixing component is arranged on the surface, facing the bottom plate, of the top plate and used for pre-fixing the rotating shaft. During the assembly, now with rotor core on being fixed in first fixed subassembly in advance, and make first fixed subassembly drive rotor core move towards the direction of keeping away from the roof earlier, again with the pivot on being fixed in the fixed subassembly of second in advance, then make first fixed subassembly drive rotor core move towards the pivot, so that pivot and rotor core butt, and make the axis of pivot and the axis collineation setting of pilot hole, then drive the roof and move towards the direction that is close to the bottom plate, in order to drive the pivot and impress in the pilot hole. So, because the pivot can keep the axis of pivot and the axis collineation setting of pilot hole before the pilot hole of rotor core by impressing, consequently, at the in-process of impressing the pilot hole with the pivot, also can make pivot and pilot hole keep coaxial setting, solved effectively in the assembling process problem of rightting between them, can promote the assembly precision and the assembly efficiency of pivot and rotor core.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of an assembly fixture according to the present invention;

FIG. 2 is a schematic view of the assembly tool of FIG. 1 prior to righting during assembly;

FIG. 3 is a schematic view of the assembly tool of FIG. 1 after being centered during assembly;

FIG. 4 is a cross-sectional view of the assembly fixture of the present invention;

fig. 5 is a partial enlarged view of a portion a in fig. 4.

The reference numbers illustrate:

the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B", including either the A aspect, or the B aspect, or aspects in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an assembly tool 100.

Referring to fig. 1 to 5, an assembly tool 100 according to an embodiment of the present invention is used for assembling a motor, where the motor includes a rotor core 220 and a rotating shaft 210, the rotor core 220 is provided with an assembly hole (not shown), and the assembly tool 100 includes:

the tool frame 10 comprises a bottom plate 11 and a top plate 13 which are oppositely arranged, and the top plate 13 moves towards a direction close to or far away from the bottom plate 11;

a first fixing member 30, wherein the first fixing member 30 is movably disposed on a surface of the bottom plate 11 facing the top plate 13, and the first fixing member 30 is used for pre-fixing the rotor core 220; and

the second fixing assembly 50 is arranged on the surface of the top plate 13 facing the bottom plate 11, and the second fixing assembly 50 is used for pre-fixing the rotating shaft 210;

first fixed subassembly 30 drive rotor core 220 orientation pivot 210 moves, so that pivot 210 with rotor core 220 butt, and make the axis of pivot 210 with the axis collineation setting of pilot hole, roof 13 orientation is close to the direction motion of bottom plate 11, in order to drive pivot 210 impresses in the pilot hole.

According to the technical scheme of the utility model, the assembly tool 100 is used for assembling the rotor core 220 and the rotating shaft 210 of the motor, wherein the rotor core 220 is provided with an assembly hole. The assembly tool 100 comprises a tool rack 10, a first fixing assembly 30 and a second fixing assembly 50, wherein the tool rack 10 comprises a bottom plate 11 and a top plate 13 which are oppositely arranged, and the top plate 13 can move towards a direction close to or far away from the bottom plate 11; the first fixing member 30 is disposed on a surface of the bottom plate 11 facing the top plate 13 and is used to pre-fix the rotor core 220; the second fixing member 50 is disposed on a surface of the top plate 13 facing the bottom plate 11 and is used to pre-fix the rotation shaft 210. During the assembly, rotor core 220 is pre-fixed on first fixed subassembly 30 at present, and make first fixed subassembly 30 drive rotor core 220 move towards the direction of keeping away from roof 13 earlier, again with pivot 210 pre-fixed on second fixed subassembly 50, then make first fixed subassembly 30 drive rotor core 220 move towards pivot 210, so that pivot 210 and rotor core 220 butt, and make the axis of pivot 210 and the axis collineation setting of pilot hole, then drive roof 13 and move towards the direction of being close to bottom plate 11, in order to drive pivot 210 to impress in the pilot hole. So, because pivot 210 can keep the axis of pivot 210 and the axis collineation setting of pilot hole before the pilot hole of being impressed rotor core 220, consequently, at the in-process of the pilot hole with the pivot 210 impressing, also can make pivot 210 and pilot hole keep coaxial setting, solved effectively in the assembling process rightting problem between them, can promote the assembly precision and the assembly efficiency of pivot 210 and rotor core 220.

Referring to fig. 1 to 3, in an embodiment of the present invention, the assembly fixture 100 further includes a guide structure 15, the guide structure 15 includes a guide sleeve 151 and a guide post 153, and the guide sleeve 151 is disposed through two opposite surfaces of the top plate 13; one end of the guide post 153 is fixed to the bottom plate 11, and the other end is inserted into the guide sleeve 151.

In the technical solution of an embodiment of the present invention, by providing the guide sleeve 151 and the guide post 153 between the bottom plate 11 and the top plate 13, the guide post 153 and the guide sleeve 151 cooperate to provide a guiding function for the movement of the top plate 13, so as to improve the movement precision of the top plate 13 when approaching or departing from the bottom plate 11. It can be understood that the surface of the guide pillar 153 is smooth, the guide sleeve 151 is provided with a through hole adapted to the guide pillar 153, and a lubricant or a lubricating oil is further provided between the guide pillar 153 and the guide sleeve 151, so as to reduce sliding friction between the guide sleeve 151 and the guide pillar 153 and reduce difficulty in sliding between the guide sleeve 151 and the guide pillar 153.

Further, referring to fig. 1 to 3, in an embodiment of the present invention, the number of the guide sleeves 151 and the number of the guide pillars 153 are multiple, one guide pillar 153 is inserted into one guide sleeve 151, and the plurality of guide sleeves 151 are uniformly arranged along the circumferential direction of the top plate 13 at intervals.

In the technical solution of an embodiment of the present invention, the number of the guide pillars 153 and the number of the guide sleeves 151 are both set to be multiple, for example, the number of the guide pillars 153 and the number of the guide sleeves 151 are both 2, 3, 4, or 5, and the like. A plurality of guide pin bushings 151 set up along the circumference direction interval equipartition of roof 13, and likewise, a plurality of guide pillar 153 also set up along the circumference direction interval equipartition of bottom plate 11, and a guide pillar 153 is corresponding to insert and locates in a guide pin bushing 151, so, can promote the direction from a plurality of directions through a plurality of guide pillars 153 and guide pin bushing 151 to carry out diversified direction processing to the direction of motion of roof 13, thereby promote the stability of roof 13 motion in-process.

Further, referring to fig. 1 to 3, in an embodiment of the present invention, the guiding structure 15 further includes a first elastic member 155, the first elastic member 155 is sleeved on the surface of the guide pillar 153, and two ends of the first elastic member 155 elastically abut against the bottom plate 11 and the guide sleeve 151, respectively. In the technical solution of an embodiment of the present invention, the first elastic member 155 may be a spring or an elastic rubber material, and by providing the first elastic member 155 between the guide pillar 153 and the guide sleeve 151, when the top plate 13 moves close to the bottom plate 11, the first elastic member 155 is compressed, and after the external force is eliminated, the first elastic member 155 may drive the top plate 13 to move towards a direction away from the bottom plate 11 to achieve the reset, so as to improve the reliability of the reset of the top plate 13.

It should be understood that, in an embodiment of the present invention, the assembly tool 100 further includes a driving mechanism, the driving mechanism is disposed on a side of the top plate 13 away from the bottom plate 11, and the driving mechanism drives the top plate 13 to move toward the bottom plate 11. In the technical solution of an embodiment of the present invention, the driving mechanism is connected to the top plate 13 and provides a power source for the movement of the top plate 13, the driving mechanism may be an air cylinder or a punching machine, and any mechanism capable of driving the top plate 13 to move toward the bottom plate 11 may be used, which is not described herein.

Referring to fig. 2 to 5, in an embodiment of the present invention, the first fixing assembly 30 includes:

the lower die holder 31, the said lower die holder 31 is fixed to the said bottom plate 11;

the guide seat 33 is sleeved at the end of the lower die holder 31, an accommodating hole 331 is formed in the end surface of the guide seat 33 facing the top plate 13, the accommodating hole 331 is used for accommodating the rotor core 220, a through hole 333 is further formed in the bottom wall of the accommodating hole 331, and the diameter of the through hole 333 is smaller than that of the accommodating hole 331; and

a first positioning member 35, the first positioning member 35 being provided at the bottom of the accommodation hole 331 and abutting against an end of the rotor core 220, the first positioning member 35 being provided with a first positioning hole 351 communicating the accommodation hole 331 and the through hole 333;

the guide seat 33 can drive the first positioning element 35 and the rotor core 220 to move relative to the lower die holder 31.

In the technical scheme of the embodiment of the utility model, the lower die holder 31 is fixed with the bottom plate 11 through a screw, the lower die holder 31 comprises a fixed disk (not marked) and a boss (not marked) which are integrally connected, the fixed disk is fixed with the bottom plate 11, the boss is cylindrical, the end surface of the guide holder 33 facing the lower die holder 31 is also provided with a sleeve hole 335 matched with the cylinder, and the guide holder 33 is sleeved on the surface of the boss and can move relative to the boss. The first positioning member 35 is fixed to the bottom of the receiving hole 331, and the rotor core 220 is pre-fixed in the receiving hole 331 and abuts against the first positioning member 35. It is understood that the central axes of the receiving hole 331, the through hole 333, the sleeve hole 335, and the first positioning hole 351 are all collinear.

Further, referring to fig. 2 to 5, in an embodiment of the present invention, the first fixing assembly 30 further includes a second elastic member 37, and the second elastic member 37 is disposed between the lower die holder 31 and the guide holder 33. In the technical solution of an embodiment of the present invention, the second elastic element 37 may be a spring, or may be an elastic rubber material, and by providing the second elastic element 37 between the lower die holder 31 and the guide seat 33, when the guide seat 33 moves close to the lower direction, the second elastic element 37 is compressed, and after the external force is eliminated, the second elastic element 37 may drive the guide seat 33 to move toward a direction away from the guide seat 33 to achieve the reset, so as to improve the reliability of the reset of the guide seat 33. And, after the guide holder 33 resets, the rotor core 220 can also be pre-fixed with the rotating shaft 210, and simultaneously the coaxiality of the rotor core 220 and the rotating shaft 210 is ensured, thereby effectively solving the problem of righting between the rotor core 220 and the rotating shaft 210.

Further, in an embodiment of the present invention, a positioning protrusion 353 is protruded from a surface of the first positioning element 35 facing the rotor core 220, the positioning protrusion 353 surrounds an edge of the through hole, and the positioning protrusion 353 is inserted into the assembling hole. In the technical solution of an embodiment of the present invention, the longitudinal section of the positioning protrusion 353 may be an arc-shaped or polygonal structure, and the positioning protrusion 353 may generate a holding force on the rotor core 220 in a process that the rotating shaft 210 is pressed into the rotor core 220, so as to avoid a problem that the stamped sheets at the end of the rotor core 220 are loosened.

Further, referring to fig. 4 and 5, in an embodiment of the present invention, the second fixing assembly 50 includes:

the upper die holder 51 is fixed on the surface, facing the bottom plate 11, of the top plate 13, and a fixing hole is further formed in the end face, facing the bottom plate 11, of the upper die holder 51; and

the second positioning element 53 is disposed in the fixing hole, a second positioning hole 531 is further disposed on an end surface of the second positioning element 53 facing the bottom plate 11, and the second positioning hole 531 is used for pre-fixing the rotating shaft 210.

In the technical solution of an embodiment of the present invention, the structure of the upper die base 51 is similar to that of the lower die base 31, and the description of the structure of the upper die base 51 is omitted here. The second positioning member 53 is fastened to the fixing hole by a screw. The second positioning element 53 is provided with a second positioning hole 531 adapted to the rotating shaft 210, and the second positioning hole 531 and the central axis of the first positioning hole 351 are arranged in a collinear manner, so as to ensure the coaxiality of the rotating shaft 210 fixed in the second positioning hole 531 and the rotor core 220 in the fixing accommodating hole 331, and effectively solve the problem of centering between the two in the assembling process. In an embodiment of the present invention, the first positioning element 35 and the second positioning element 53 are made of metal. The first positioning element 35 and the second positioning element 53 are made of metal materials with high hardness and good wear resistance, so that the assembly accuracy of the first positioning element 35 and the second positioning element 53 after multiple assembly is ensured.

It can be understood that, when assembling, a worker firstly puts the rotor core 220 into the receiving hole 331 of the guide seat 33, then presses the guide seat 33, so that the guide seat 33 moves downwards, and at the same time, inserts one end of the rotating shaft 210 into the second positioning hole 531, releases the guide seat 33, the rotor core 220 moves upwards along with the guide seat 33, the assembling hole of the rotor core 220 is aligned with the rotating shaft 210, and the centering of the rotating shaft 210 is completed, and then the driving mechanism drives the top plate 13 to move downwards, so that the rotating shaft 210 is pressed into the assembling hole of the rotor core 220.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides an assembly fixture for assemble the motor, the motor includes rotor core and pivot, rotor core is equipped with the pilot hole, its characterized in that, assembly fixture includes:

2. The assembly tooling of claim 1 wherein the first stationary component comprises:

the lower die holder is fixed on the bottom plate;

3. The assembly tooling of claim 2, wherein the first fixing component further comprises a second elastic member, and the second elastic member is arranged between the lower die holder and the guide holder.

4. The assembly tooling of claim 2, wherein a positioning protrusion is convexly arranged on the surface of the first positioning member facing the rotor core, the positioning protrusion surrounds the edge of the through hole, and the positioning protrusion is inserted into the assembly hole.

5. The assembly tooling of claim 2 wherein the second stationary component comprises:

6. The assembly fixture of claim 5, wherein the first positioning member and the second positioning member are made of metal.

7. The assembly tool according to any one of claims 1 to 6, further comprising a guide structure, wherein the guide structure comprises:

the guide sleeve penetrates through two opposite surfaces of the top plate; and

8. The assembly fixture according to claim 7, wherein the number of the guide sleeves and the guide pillars is plural, one guide pillar is inserted into one guide sleeve, and the plurality of guide sleeves are uniformly arranged at intervals along the circumferential direction of the top plate.

9. The assembly fixture according to claim 7, wherein the guide structure further includes a first elastic member, the first elastic member is sleeved on the surface of the guide post, and two ends of the first elastic member are elastically abutted to the bottom plate and the guide sleeve respectively.

10. The assembly tool according to claim 7, further comprising a driving mechanism, wherein the driving mechanism is disposed on a side of the top plate away from the bottom plate, and the driving mechanism drives the top plate to move towards the bottom plate.