阅读说明：本技术 一种电机电桥总成的制造方法 (Manufacturing method of motor bridge assembly ) 是由 沈捷 于 2021-09-15 设计创作，主要内容包括：本发明提供了一种电机电桥总成的制造方法,包括以下步骤：将电桥总成的减速器固定在一固定工件上,并将转子沿固定方向安装在减速器上；一限位工件沿固定方向与转子的端部抵顶,以将转子沿固定方向固定；一夹持工件夹持定子,并将定子的沿固定方向向限位工件和转子移动,使得限位工件和转子贯穿定子的中部,直至定子过盈安装于减速器上。采用上述技术方案后,工艺过程简单,可靠性高。(The invention provides a manufacturing method of a motor bridge assembly, which comprises the following steps: fixing a speed reducer of the bridge assembly on a fixed workpiece, and mounting a rotor on the speed reducer along a fixed direction; a limiting workpiece is abutted against the end part of the rotor along the fixing direction so as to fix the rotor along the fixing direction; and the clamping workpiece clamps the stator and moves the stator to the limiting workpiece and the rotor along the fixed direction, so that the limiting workpiece and the rotor penetrate through the middle part of the stator until the stator is arranged on the speed reducer in an interference manner. After the technical scheme is adopted, the technical process is simple and the reliability is high.)

1. A method of manufacturing a motor bridge assembly, comprising the steps of:

fixing a speed reducer of the bridge assembly on a fixed workpiece, and mounting a rotor on the speed reducer along a fixed direction;

a limiting workpiece is abutted against the end part of the rotor along the fixing direction so as to fix the rotor along the fixing direction;

and the clamping workpiece clamps the stator and moves the stator to the limiting workpiece and the rotor along the fixed direction, so that the limiting workpiece and the rotor penetrate through the middle part of the stator until the stator is arranged on the speed reducer in an interference manner.

2. The method of manufacturing according to claim 1, wherein the step of securing the reducer of the bridge assembly to a stationary workpiece and mounting the rotor on the reducer in a fixed orientation comprises:

the method comprises the steps of obtaining a mounting base which comprises a supporting plate and a supporting piece, wherein the supporting plate is placed on a mounting end face, and the speed reducer extends towards the supporting piece, so that the supporting piece extends into the speed reducer.

3. The manufacturing method according to claim 1, wherein a stopper member abuts against an end portion of the rotor in the fixing direction to fix the rotor in the fixing direction comprises:

and taking a thimble as a limiting workpiece to move along the fixed direction and the end part of the rotor until the thimble abuts against the rotor.

4. The method as claimed in claim 3, wherein the thimble abuts against the end of the rotor in a direction parallel to the fixing direction with a force of 2000-3000N.

5. The method of claim 1, wherein the step of holding the stator by a holding member and moving the stator in a fixed direction toward the holding member and the rotor so that the holding member and the rotor penetrate through the middle of the stator until the stator is interference-mounted on the decelerator comprises:

a clamping workpiece clamps the end part of the stator far away from the rotor;

the clamping workpiece clamps the stator to move towards the rotor along the fixed direction until the stator is arranged on the speed reducer in an interference mode.

6. The manufacturing method according to claim 5,

a through hole is formed in the middle of the clamping workpiece, and the diameter of the through hole is larger than that of the limiting workpiece;

an annular groove is formed in the end face, facing the stator, of the speed reducer and surrounds the rotor; the size of the slot of the annular groove is slightly smaller than the radial width of the stator.

Technical Field

The invention relates to the field of manufacturing of motor controllers, in particular to a manufacturing method of a motor bridge assembly.

Background

The bridge assembly process of the motor controller has more processes, and different products are designed with different assembly processes, so that the bridge manufacturer cares about how to improve the efficiency of the assembly process and reduce the complexity of equipment.

The existing permanent magnet synchronous motor bridge assembly needs to adopt upper and lower ejector pins, so that on one hand, the clamping of a tool is complex, on the other hand, the assembly of a speed reducer needs to be completely disassembled or the assembly of a cover needs to be opened, and the process is too high.

Therefore, there is a need for a new method of manufacturing an electrode bridge assembly that reduces the assembly process of the bridge assembly.

Disclosure of Invention

In order to overcome the technical defects, the invention aims to provide a manufacturing method of a motor bridge assembly, which has simple process and high reliability.

The invention discloses a manufacturing method of a motor bridge assembly, which comprises the following steps:

fixing a speed reducer of the bridge assembly on a fixed workpiece, and mounting a rotor on the speed reducer along a fixed direction;

a limiting workpiece is abutted against the end part of the rotor along the fixing direction so as to fix the rotor along the fixing direction;

and the clamping workpiece clamps the stator and moves the stator to the limiting workpiece and the rotor along the fixed direction, so that the limiting workpiece and the rotor penetrate through the middle part of the stator until the stator is arranged on the speed reducer in an interference manner.

Preferably, the step of fixing the speed reducer of the bridge assembly to a fixed workpiece and mounting the rotor to the speed reducer in a fixed direction includes:

obtain an installation base, installation base includes backup pad and support piece, and the backup pad is placed on the installation terminal surface, and the reduction gear extends to support piece to make support piece stretch into in the reduction gear.

Preferably, the step of abutting a limiting workpiece against the end of the rotor along the fixing direction to fix the rotor along the fixing direction includes:

and taking a thimble as a limiting workpiece to move along the fixed direction and the end part of the rotor until the thimble abuts against the rotor.

Preferably, the thimble abuts against the end of the rotor in a direction parallel to the fixing direction with a force of 2000-.

Preferably, a clamping workpiece clamps the stator and moves the stator to the limiting workpiece and the rotor along a fixed direction, so that the limiting workpiece and the rotor penetrate through the middle of the stator until the stator is arranged on the speed reducer in an interference manner, and the step of installing the stator on the speed reducer comprises the following steps:

a clamping workpiece clamps the end part of the stator far away from the rotor;

the clamping workpiece clamps the stator to move towards the rotor along the fixed direction until the stator is arranged on the speed reducer in an interference mode.

Preferably, a through hole is formed in the middle of the clamping workpiece, and the diameter of the through hole is larger than that of the limiting workpiece;

the end surface of the speed reducer facing the stator is provided with an annular groove which is surrounded outside the rotor;

the size of the slot of the annular groove is slightly smaller than the radial width of the stator.

After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:

1. the assembly process of the bridge assembly is simpler, and the reliability is high;

2. the bridge assembly can be completed on a single work station without the adsorption risk of a stator and a rotor;

3. the reducer does not need a windowing process, the complexity of the reducer is reduced, and the reducer can be compatible with a more flexible supply business mode.

Drawings

FIG. 1 is a schematic flow chart of a method of manufacturing an electric bridge assembly in accordance with a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of a motor bridge assembly in accordance with a preferred embodiment of the present invention.

Reference numerals:

Detailed Description

The advantages of the invention are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.

Referring to fig. 1, a method for manufacturing a motor bridge assembly according to a preferred embodiment of the present invention includes the following steps:

s100: fixing a speed reducer of the bridge assembly on a fixed workpiece, and mounting a rotor on the speed reducer along a fixed direction;

the speed reducer of the electric bridge assembly is a power transmission mechanism, does not generate power per se, and has the function of reducing the revolution number of a motor to the revolution number required by the speed reducer by utilizing gears with different sizes and speed converters; the mechanism for obtaining large torque mainly has the following functions: the output torque is improved while the speed is reduced, the torque output proportion is multiplied by the reduction ratio according to the output of the motor, but attention is paid to the fact that the rated torque of the speed reducer cannot be exceeded; the deceleration reduces the inertia of the load at the same time, the reduction in inertia being the square of the reduction ratio. It can be seen that typical motors have an inertia value. The reducer is fixed to a fixed workpiece so that the reducer itself does not displace when the stator and rotor of the reducer are mounted.

With the above-described reducer, the rotor will be mounted on the reducer in a fixed direction. It will be appreciated that the fixed direction is the direction of movement of the rotor when mounted to the speed reducer, for example vertically downwards towards the speed reducer, or horizontally to the left and right towards the speed reducer.

S200: a limiting workpiece is abutted against the end part of the rotor along the fixing direction so as to fix the rotor along the fixing direction;

after the position of the rotor is fixed on the speed reducer, a limiting workpiece is utilized to move along the fixed direction and abut against the end part of the rotor, and the position of the rotor is fixed along the fixed direction.

It can be understood that, in this embodiment, only one limiting workpiece abuts against one end of the rotor, so that the other end of the rotor, i.e. the end on the speed reducer, does not need to abut against the outer limiting workpiece, and further, on the speed reducer, as in the prior art, the middle part of the speed reducer is not required to be penetrated by the limiting workpiece, so that the installation process is saved.

S300: and the clamping workpiece clamps the stator and moves the stator to the limiting workpiece and the rotor along the fixed direction, so that the limiting workpiece and the rotor penetrate through the middle part of the stator until the stator is arranged on the speed reducer in an interference manner.

The position of the rotor is fixed through the matching of the limiting workpiece and the speed reducer. Then, will utilize a centre gripping work piece centre gripping stator, the stator needs with the rotor installation, consequently, the centre gripping work piece with the stator along fixed direction to spacing work piece and rotor removal, at the removal in-process, because spacing work piece and rotor itself are fixed, consequently, spacing work piece and rotor will run through the middle part of stator, until the rotor is arranged in the stator completely. And in order to stabilize the position of the stator, the stator is arranged on the speed reducer in an interference manner, so that even if the stator and the rotor have adsorbed magnetic force, the rotor is also fixed by the speed reducer because the stator is fixed by the speed reducer, and the stator and the rotor cannot be adsorbed.

After having above-mentioned configuration, also need not the spacing work piece in the integrated upper and lower or left and right sides of equipment in the assembling process again, simplified the complexity and the height of equipment, simultaneously, no longer need the process of windowing on the reduction gear, this is very important, because if when final assembly, the reduction gear can't be taken apart as whole supply of material, has a big influence to the process assembly. After the windowing process is omitted, the complexity of the speed reducer is reduced, and a more flexible supply business mode can be compatible.

In a preferred embodiment, the step S100 of fixing the reducer of the bridge assembly to a fixed workpiece and mounting the rotor to the reducer in a fixed direction includes:

s110: the method comprises the steps of obtaining a mounting base which comprises a supporting plate and a supporting piece, wherein the supporting plate is placed on a mounting end face, and the speed reducer extends towards the supporting piece, so that the supporting piece extends into the speed reducer.

The mounting base can be any device to which the reducer can be mounted, and with reference to fig. 2, it comprises a support plate and a support member, the support plate being planar and resting on a horizontal plane as a mounting end face. The stiff end of support piece is connected in the backup pad, and the free end of opposite side extends to the direction of keeping away from in the backup pad, and support piece can be many, stretches into the inside of reduction gear to make the position of reduction gear at first fixed.

In a preferred embodiment, the step S200 of abutting a limiting workpiece against the end of the rotor along the fixing direction to fix the rotor along the fixing direction includes:

s210: and taking a thimble as a limiting workpiece to move along the fixed direction and the end part of the rotor until the thimble abuts against the rotor.

In a preferred embodiment, the limiting workpiece is an ejector pin, moves towards the end of the rotor along a fixed direction, continues to move along the same direction when contacting the rotor until the ejector pin abuts against the rotor, and under the abutting state, an interaction force is formed between the ejector pin and the rotor, the direction of the interaction force faces the speed reducer along the fixed direction, and the rotor is fixed by the action of the speed reducer and the ejector pin.

Furthermore, the thimble is suitable for small-size rotors, and the thimble is abutted against the rotors through a small contact area, so that the abrasion to the rotors is reduced, and meanwhile, acting force can be stabilized on the central axis of the rotors, and the rotors are prevented from being deviated due to the acting force.

Furthermore, the thimble abuts against the end of the rotor along the direction parallel to the fixed direction with the force of 2000-3000N, so that on one hand, enough force can be applied to the rotor to ensure that the rotor does not deviate in the installation process, and on the other hand, the integrity of the rotor can be ensured after the installation.

In a preferred or optional embodiment, the step S300 of clamping the workpiece to clamp the stator and moving the stator in the fixed direction to the limiting workpiece and the rotor so that the limiting workpiece and the rotor penetrate through the middle of the stator until the stator is interference-mounted on the reducer comprises:

s310: a clamping workpiece clamps the end part of the stator far away from the rotor;

the method comprises the steps of obtaining a clamping workpiece, wherein the clamping workpiece can be a clamping piece arranged on a machine or a separate clamping piece, and a user can use the clamping workpiece by holding the clamping piece by hands. The clamping piece is utilized to clamp the end part of the stator far away from the rotor, so that the rotor and the clamping piece move synchronously.

S320: the clamping workpiece clamps the stator to move towards the rotor along the fixed direction until the stator is arranged on the speed reducer in an interference mode.

The clamping workpiece clamps the stator to move towards the rotor in a fixed direction, during which the rotor will pass through the hollow part of the stator and the spacing workpiece will also pass through the hollow part of the stator (the rotor and the spacing workpiece also pass through the clamping workpiece). Along with the further movement of the stator, the stator is sleeved outside the rotor until the stator is arranged on the speed reducer in an interference mode.

Furthermore, the workpiece and the rotor can penetrate through the clamping workpiece and the stator simultaneously for convenience of limiting. The stator itself has a hollow portion in the shape of a ring. The middle part of the clamping workpiece is provided with a through hole, and the diameter of the through hole is larger than that of the limiting workpiece. For example, when the limiting workpiece is an ejector pin, the diameter of the through hole is larger than that of the ejector pin, so that the ejector pin can penetrate through the clamping workpiece, and then the stator can be arranged outside the rotor in a surrounding mode after the ejector pin penetrates through the stator. The end face of the speed reducer facing the stator is provided with an annular groove, the annular groove is arranged around the rotor, the size of a notch of the annular groove is slightly smaller than the radial width of the stator, and the radial width is the radial width of a solid part of the stator. When the stator is inserted into the annular groove, a certain force is required to be applied to clamp the stator, and once the stator is clamped, the stable position is formed.

It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.