CN113442083B

CN113442083B - Generator assembly fixture

Info

Publication number: CN113442083B
Application number: CN202110663379.4A
Authority: CN
Inventors: 严磊; 朱志雄; 马晓琴
Original assignee: Dongfeng Electric Drive Systems Co Ltd
Current assignee: Dongfeng Electric Drive Systems Co Ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-09-09
Anticipated expiration: 2041-06-15
Also published as: CN113442083A

Abstract

The invention relates to a generator assembling clamp which comprises a bottom plate, an L-shaped support, a positioning sleeve, a lower positioning mandrel and an upper positioning mandrel, wherein the L-shaped support is arranged in an inverted mode, the positioning sleeve, a vertical arm of the L-shaped support and the lower positioning mandrel are fixedly arranged on the bottom plate, the upper positioning mandrel is fixedly arranged on a cross arm of the L-shaped support, and the lower positioning mandrel and the upper positioning mandrel are vertically and coaxially arranged. The assembly fixture disclosed by the invention can ensure high coaxiality of the two lug holes of the front end cover and the rear end cover, and the assembly fixture saves the manufacturing and maintenance cost of the tool in an integrated positioning mode, optimizes the operation method of an operator, reduces the action waste, improves the production efficiency and eliminates the worthless operation.

Description

Generator assembly fixture

Technical Field

The invention relates to the technical field of automobile motor assembling tools, in particular to a generator assembling clamp.

Background

End cover hangers hole axiality (as shown in fig. 1) around need guaranteeing when end cover, stator, rotor assembly assemble around the automobile motor trade generator assembly, generally adopt earlier with the mode that auxiliary fixtures axiality correction rod was rectified, this is not enough in two aspects of existence: 1) the production and manufacturing cost is high: a plurality of correcting rods are required to be manufactured for production turnover for a single product, and the production and maintenance costs of the correcting rods are high; 2) the assembly efficiency is low: in the mode, a process of inserting the coaxiality correcting rod is additionally required, and the correcting rod is taken down after the press mounting is finished, so that the waste of human resources and the loss of time are caused.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a generator assembling clamp which can ensure the coaxiality of two lug holes of a front end cover and a rear end cover of a generator assembly, and has low production cost and high assembling efficiency.

The technical scheme for solving the technical problems is as follows:

a generator assembling clamp comprises a bottom plate, an L-shaped support, a positioning sleeve, a lower positioning mandrel and an upper positioning mandrel, wherein the L-shaped support is arranged in an inverted mode, the positioning sleeve, a vertical arm of the L-shaped support and the lower positioning mandrel are fixedly installed on the bottom plate, the upper positioning mandrel is fixedly installed on a cross arm of the L-shaped support, and the lower positioning mandrel and the upper positioning mandrel are vertically and coaxially arranged.

On the basis of the technical scheme, the invention can be further improved as follows.

Preferably, the lower positioning mandrel is arranged below the cross arm of the L-shaped bracket, and a gap is reserved between the lower positioning mandrel and the cross arm of the L-shaped bracket.

Preferably, the positioning sleeve is provided with a positioning hole, and the positioning hole is matched with a boss in the center of an end cover of the generator.

Preferably, the outer edge of the locating sleeve is provided with a boss avoiding groove, and the boss avoiding groove is matched with a boss at the edge of the generator.

Preferably, the bottom plate is provided with a lead avoiding groove, and the lead avoiding groove is arranged along the outer edge of the positioning sleeve.

Preferably, the bottom plate is provided with at least two limiting holes, and the at least two limiting holes are respectively matched with the positioning pins of the assembling equipment.

Preferably, the bottom plate is provided with a plurality of mounting holes, bolts are arranged in the mounting holes, and the bolts are fixedly connected with the assembling equipment.

Preferably, the bottom plate is provided with a pull rod mounting groove, and the pull rod mounting groove is hinged to a pull rod of the assembling device through a hinge element and used for pushing and pulling the bottom plate.

The invention has the beneficial effects that: aligning two limiting holes of the bottom plate with the assembling equipment, then sleeving the two limiting holes on positioning pins of the assembling equipment in a sleeving manner, and fixedly installing the bottom plate on the assembling equipment through matching of bolts and installation holes of the bottom plate; and then, the pull rod mounting groove of the point is hinged with a pull rod of a telescopic mechanism on the assembly equipment through a hinge piece, so that the assembly fixture is mounted on the assembly equipment. When the assembly fixture is put into operation, a stator component and a rear end cover of a generator are buckled together through a spigot to form a whole, then the rear end cover is arranged upwards, a boss at the center of the rear end cover is placed in a positioning hole at the center of a positioning sleeve, an edge boss of the rear end cover is placed in a boss avoiding groove, a lead of a stator armature corresponds to a lead avoiding groove and is placed, a first lug hole on the rear end cover is sleeved on a lower positioning mandrel, and fine positioning of the rear end cover is formed. And then, the outer circle of the rotor part is placed in the inner cavity of the stator part, the front end cover is coaxially sleeved outside the stator part, and the second lug hole in the front end cover is sleeved on the upper positioning mandrel, so that the precise positioning of the front end cover is completed. And finally, pressing the front end cover and the rotor component downwards by using a pressing connection mechanism of the assembling equipment, pressing a bearing at the lower end of the rotor component into a bearing chamber of the rear end cover, namely pressing the front end cover, the rotor component, the stator component and the rear end cover into a whole, and ensuring the high coaxiality of the two lug holes of the front end cover and the rear end cover. The tool is manufactured and maintained at low cost by the integrated positioning mode of the assembling clamp; by adopting an integrated positioning mode, the operation method of operators is optimized, the action waste is reduced, the production efficiency is improved, and the worthless operation is eliminated.

Drawings

FIG. 1 is a block diagram of a generator according to the present invention;

FIG. 2 is an exploded view of a generator according to the present invention;

FIG. 3 is a schematic view of the generator of the present invention in cooperation with an assembly fixture;

FIG. 4 is a schematic view of the overall structure of the assembly fixture of the present invention;

FIG. 5 is a top view of the assembly fixture of the present invention.

In the drawings, the reference numbers indicate the following list of parts:

1. the base plate, 101, spacing hole, 102, mounting hole, 103, pull rod mounting groove, 2, position sleeve, 201, locating hole, 202, boss dodge the groove, 203, lead wire dodge the groove, 3, L shape support, 4, lower location mandrel, 5, go up location mandrel, 6, generator, 601, rear end cap, 6011, first hangers hole, 602, stator part, 603, rotor part, 604, front end housing, 6041, second hangers hole.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.

Fig. 1 to 2 show a component structure of a generator 6 according to this embodiment, which includes a front end cover 604, a rotor component 603, a stator component 602, and a rear end cover 601. After assembly, it is required to ensure that the second lug hole 6041 on the front end cover 604 and the first lug hole 6011 on the rear end cover 601 are coaxially arranged, that is, the coaxiality of the two lug holes (6041, 6011) needs to be ensured.

In order to solve the above problem, as shown in fig. 3 to 5, the present embodiment provides a generator assembling jig, which includes a bottom plate 1, an L-shaped bracket 3, a positioning sleeve 2, a lower positioning mandrel 4, and an upper positioning mandrel 5, wherein the L-shaped bracket 3 is arranged in an inverted manner, the positioning sleeve 2, a vertical arm of the L-shaped bracket 3, and the lower positioning mandrel 4 are fixedly mounted on the bottom plate 1, the upper positioning mandrel 5 is fixedly mounted on a cross arm of the L-shaped bracket 3, and the lower positioning mandrel 4 and the upper positioning mandrel 5 are vertically and coaxially arranged.

The bottom plate 1 serves as a support of the whole assembly fixture, the locating sleeve 2 provides vertical support for the assembly process of the generator 6, the L-shaped support 3 provides support for the upper locating mandrel 5, and the lower locating mandrel 4 and the upper locating mandrel 5 respectively provide horizontal support for a first hanging lug hole 6011 of the rear end cover 601 and a second hanging lug hole 6041 of the front end cover 604 of the generator 6 in the assembly process. As shown in fig. 3, which is a schematic view of the matching between the generator 6 and the assembly fixture of the embodiment, during assembly, the first suspension loop hole 6011 of the rear end cover 601 is sleeved on the lower positioning mandrel 4, the second suspension loop hole 6041 of the front end cover 604 is sleeved on the upper positioning mandrel 5, and then the generator 6 is crimped, so as to ensure that the two suspension loop holes (6011, 6041) of the front and rear end covers 601 of the crimped generator 6 have high coaxiality. By using the assembly fixture, the manufacturing and maintenance costs of the tool are saved; by adopting an integrated positioning mode, the operation method of operators is optimized, the action waste is reduced, the production efficiency is improved, and the worthless operation is eliminated.

On the basis of the above technical solution, the present embodiment can be further improved as follows.

In this embodiment, as shown in fig. 4, the lower positioning mandrel 4 is disposed below the cross arm of the L-shaped bracket 3, and the height of the lower positioning mandrel 4 is set appropriately, so that a gap is left between the lower positioning mandrel 4 and the cross arm of the L-shaped bracket 3. The gap is matched with the size of the stator component 602 of the generator 6 and the rear end cover 601, and the first suspension loop hole 6011 of the rear end cover 601 can be sleeved on the lower positioning mandrel 4 through the gap.

In this embodiment, as shown in fig. 4 to 5, the positioning sleeve 2 is provided with a positioning hole 201, and the positioning hole 201 is adapted to a boss at the center of the rear end cover 601 of the generator 6. The positioning hole 201 on the positioning sleeve 2 positions the rear end cover 601 of the generator 6, and the rear end cover 601 is prevented from deviating in the crimping assembly process to influence the assembly precision.

In this embodiment, as shown in fig. 4 to 5, the outer edge of the positioning sleeve 2 is provided with a boss avoiding groove 202, and the boss avoiding groove 202 is matched with the edge boss of the generator 6. The boss avoiding groove 202 prevents the positioning sleeve 2 from interfering with the rear end cover 601, and prevents the rear end cover 601 from deviating in the crimping assembly process to influence the assembly precision.

In this embodiment, as shown in fig. 4 to 5, the bottom plate 1 is provided with a lead avoiding groove 203, and the lead avoiding groove 203 is arc-shaped and is arranged along the outer edge of the positioning sleeve 2. The lead avoiding groove 203 is used for placing a lead led out by the stator armature, and the lead is prevented from being damaged in the crimping process, so that the electrical performance and the safety performance of the generator 6 are prevented from being influenced.

In this embodiment, as shown in fig. 5, at least two limiting holes 101 are formed in the bottom plate 1, and the at least two limiting holes 101 are respectively adapted to positioning pins of the assembly equipment. All spacing holes 101 mutually support, carry out the essence with bottom plate 1 and even whole assembly jig on equipment and fix a position, prevent that the whole skew that takes place of anchor clamps in the assembling process from influencing the assembly effect.

In this embodiment, as shown in fig. 5, a plurality of mounting holes 102 are formed in the bottom plate 1, and bolts are disposed in the mounting holes 102 and fixedly connected to the assembly equipment. In the embodiment, the four corners of the bottom plate 1 are respectively provided with a mounting hole 102, and the bottom plate 1 is effectively locked on the assembling equipment by penetrating the mounting holes 102 through bolts.

In this embodiment, the bottom plate 1 is provided with a pull rod mounting groove 103, and the pull rod mounting groove 103 is hinged to a pull rod of the assembly device through a hinge for pushing and pulling the bottom plate 1. The assembling equipment pushes and pulls the assembling clamp through a telescopic mechanism (such as an air cylinder), so that the part of the generator 6 to be assembled is pulled to an assembling position, and the generator 6 is pushed to the next station after the assembling is finished, so that the whole assembling work is finished.

The working principle is as follows:

aligning two limiting holes 101 of the bottom plate 1 with the assembling equipment, then sleeving the two limiting holes on positioning pins of the assembling equipment, and matching the two limiting holes with mounting holes 102 of the bottom plate 1 through bolts to fixedly mount the bottom plate 1 on the assembling equipment; and then the pull rod mounting groove 103 of the point is hinged with a pull rod of a telescopic mechanism on the assembly equipment through a hinge piece, so that the assembly fixture is mounted on the assembly equipment. When the assembly fixture is put into operation, as shown in fig. 2 and 3, a stator component 602 of the generator 6 and a rear end cover 601 are buckled together through a spigot to form a whole, then the rear end cover 601 is arranged upwards, a boss at the center of the rear end cover 601 is placed in a positioning hole 201 at the center of a positioning sleeve 2, an edge boss of the rear end cover 601 is placed in a boss avoiding groove 202, a lead of a stator armature is placed corresponding to a lead avoiding groove 203, and a first lug hole 6011 on the rear end cover 601 is sleeved on a lower positioning mandrel 4 to form fine positioning of the rear end cover 601. Then, the outer circle of the rotor component 603 is placed in the inner cavity of the stator component 602, the front end cover 604 is coaxially sleeved outside the stator component 602, and the second ear hanging hole 6041 on the front end cover 604 is sleeved on the upper positioning mandrel 5, so as to complete the fine positioning of the front end cover 604. And finally, the front end cover 604 and the rotor component 603 are pressed downwards by using a crimping mechanism of the assembling equipment, and a bearing at the lower end of the rotor component 603 is pressed into a bearing chamber of the rear end cover 601, namely, the front end cover 604, the rotor component 603, the stator component 602 and the rear end cover 601 are crimped into a whole, and high coaxiality of two lug holes (6011 and 6041) of the front end cover 604 and the rear end cover 601 can be ensured. According to the invention, the tool manufacturing and maintenance cost is saved through the integrated positioning mode of the assembly fixture, the operation method of an operator is optimized, the action waste is reduced, the production efficiency is improved, and the worthless operation is eliminated.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.

Claims

1. The generator assembling clamp is characterized by comprising a bottom plate (1), an L-shaped support (3), a positioning sleeve (2), a lower positioning mandrel (4) and an upper positioning mandrel (5), wherein the L-shaped support (3) is arranged in an inverted mode, the positioning sleeve (2), a vertical arm of the L-shaped support (3) and the lower positioning mandrel (4) are fixedly installed on the bottom plate (1), the upper positioning mandrel (5) is fixedly installed on a cross arm of the L-shaped support (3), and the lower positioning mandrel (4) and the upper positioning mandrel (5) are vertically and coaxially arranged; the lower positioning mandrel (4) is arranged below the cross arm of the L-shaped support (3), and a gap is reserved between the lower positioning mandrel (4) and the cross arm of the L-shaped support (3); rear end housing (601) of generator is equipped with first hangers hole (6011), first hangers hole (6011) cover is established under on location mandrel (4), and front end housing (604) of generator is equipped with second hangers hole (6041), second hangers hole (6041) cover is established on last location mandrel (5).

2. The generator assembling jig is characterized in that a positioning hole (201) is formed in the positioning sleeve (2), and the positioning hole (201) is matched with a central boss of an end cover of the generator (6).

3. The generator assembly jig of claim 1, characterized in that the outer edge of the locating sleeve (2) is provided with a boss avoiding groove (202), and the boss avoiding groove (202) is matched with the edge boss of the generator (6).

4. The generator assembly jig of claim 1, characterized in that the bottom plate (1) is provided with a lead avoiding groove (203), and the lead avoiding groove (203) is arranged along the outer edge of the positioning sleeve (2).

5. The generator assembling jig of claim 1, characterized in that the bottom plate (1) is provided with at least two limiting holes (101), and the at least two limiting holes (101) are respectively adapted to positioning pins of assembling equipment.

6. The generator assembling jig is characterized in that a plurality of mounting holes (102) are formed in the base plate (1), and bolts are arranged in the mounting holes (102) and fixedly connected with assembling equipment.

7. The generator assembling jig of claim 1, wherein the base plate (1) is provided with a pull rod mounting groove (103), and the pull rod mounting groove (103) is hinged with a pull rod of an assembling device through a hinge element and used for pushing and pulling the base plate (1).