Motor assembling device

Abstract

The utility model relates to the technical field of motor production, in particular to a motor assembling device. A motor assembling device comprises a base, the outer end of the base is provided with an end plate vertically installed, the middle of the base is provided with a middle plate capable of moving front and back, the middle of the base is provided with a sliding rail perpendicular to the end plate and the middle plate, a sliding table air cylinder is installed on the sliding rail, and a sliding block of the sliding table air cylinder is fixedly connected with the middle plate. The upper parts of the end plate and the middle plate are provided with positioning grooves with the same size and height, and the positioning grooves are used for limiting the motor housing and the stator end part. The motor assembling device comprises a base, end plates vertically installed at the two ends and a movable middle plate, a sliding rail perpendicular to the end plates and the middle plate is arranged on the base, a sliding table air cylinder drives the middle plate to move along the sliding rail through a sliding block, equal-size positioning grooves are symmetrically formed in the tops of the end plates and the top of the middle plate, and a motor shell and the end of a stator are coaxially limited through the double grooves. And the assembly precision and the levelness are ensured.

Description

Technical Field

[0001] This utility model relates to the field of motor manufacturing technology, and in particular to a motor assembly device. Background Technology

[0002] In traditional motor assembly processes, the assembly of the motor housing and stator mainly relies on manual operation or simple tooling for positioning, which has significant technical defects: on the one hand, due to the lack of a high-precision coaxial positioning structure between the housing and the stator ends, radial offset is easily generated during assembly, resulting in uneven air gap; on the other hand, existing devices cannot guarantee the parallelism between the housing and the stator end faces, and rotor jamming is often caused by horizontal deviation. In addition, uneven force during manual pressing can easily cause deformation of the stator silicon steel sheets, and the ordinary inlet design will further exacerbate the difficulty of component alignment, seriously affecting the motor's operating efficiency and lifespan. These pain points urgently need to be solved by structured positioning devices.

[0003] In view of the above-mentioned shortcomings, the designer has actively researched and innovated in order to create a motor assembly device that has greater industrial value. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a motor assembly device.

[0005] This utility model discloses a motor assembly device, including a base, an end plate vertically mounted at the outer end of the base, an intermediate plate movable back and forth in the middle of the base, a slide rail vertically mounted to the end plate and the intermediate plate in the middle of the base, a slide cylinder mounted on the slide rail, the slider of the slide cylinder being fixedly connected to the intermediate plate, and positioning grooves of equal size and height on the upper part of the end plate and the intermediate plate, the positioning grooves being used for limiting the motor housing and stator end.

[0006] A motor assembly device includes a base, end plates vertically mounted at both ends, and a movable intermediate plate. The base is provided with a slide rail perpendicular to the end plates and the intermediate plate. A slide cylinder drives the intermediate plate to move along the slide rail via a slider. The top of the end plates and the intermediate plate are symmetrically provided with positioning grooves of the same size. The motor housing and the stator end are limited by the coaxial positioning of the double grooves to ensure assembly accuracy and levelness.

[0007] Furthermore, the upper end of the positioning groove has an open inlet, the upper opening of which is larger than the lower opening that contacts the positioning groove.

[0008] The upper end of the positioning groove is provided with an inlet, whose opening gradually narrows from top to bottom to form a guide channel. The horn-shaped structure guides the outer shell and stator to quickly align, reducing the insertion resistance of the components and correcting horizontal deviations.

[0009] Furthermore, there are multiple protruding positioning protrusions on the inner sides of the end plate and the middle plate facing each other.

[0010] The positioning protrusions on the inner sides of the end plate and the intermediate plate can respectively engage with the recesses on the motor housing and the stator end face to improve assembly accuracy.

[0011] Furthermore, there is a support one on the outer side of the end plate and a support two on the outer side of the middle plate, with openings at the upper ends of both support one and support two.

[0012] The outer side of the end plate is provided with support 1 with an upper opening, and the outer side of the middle plate is provided with support 2 of the same structure. The two support openings are opposite to each other to form a support and limiting structure for the motor shaft. The axial positioning is achieved through double-sided symmetrical support, which effectively limits the radial displacement and rotational offset of the shaft during the assembly process, ensuring the coaxiality of the motor shaft and the stator assembly. At the same time, the open design facilitates quick insertion and visual inspection, improves assembly efficiency and ensures operational stability.

[0013] Furthermore, the centers of support one and support two, as well as the two positioning slots, are located on the same axis.

[0014] The collinear layout of the centers of the first support, the second support, and the two positioning slots on the top of the end plate and the middle plate creates a multi-level geometric constraint that is coaxially superimposed on the motor shaft, housing, and stator assembly during assembly. The consistency of the axes of the supports and positioning slots eliminates accumulated tolerances and ensures dynamic concentricity compensation between the housing and the stator during axial advancement.

[0015] Furthermore, the other end of the base is a cylinder mounting plate, and a clamping cylinder is installed at the top of the cylinder mounting plate. The telescopic rod of the clamping cylinder is at the same height as the support.

[0016] The cylinder mounting plate at the end of the base has a top-mounted clamping cylinder that is vertically installed at the top. The cylinder is positioned at the same height as the second support through a telescopic rod, so that the cylinder thrust is precisely applied to the opening axis of the second support. Through the matching of heights, the clamping force and the support surface are output vertically and synchronously, ensuring that there is no lateral force interference when the motor shaft is compressed in the second support, maintaining the center positioning stability of the shaft system assembly. At the same time, the coordinated control of the cylinder stroke and the support structure can dynamically adjust the assembly preload.

[0017] Furthermore, there are four positioning protrusions on each side of the end plate (2) and the middle plate (3).

[0018] By employing the above-described scheme, the present invention possesses at least the following advantages: This motor assembly device, through the coaxial and collinear layout of support one, support two, and the positioning groove, the symmetrical support of the double-sided opening structure, and the vertical synchronous pressure mechanism of the clamping cylinder, forms a multi-level geometric constraint and dynamic compensation system, significantly improving the straightness of the motor assembly. The collinear design of the support structure and the positioning groove ensures the coaxial superposition and assembly of the motor shaft, housing, and stator assembly, eliminating the interference of accumulated tolerances on straightness. The opening and the tapered guide positioning groove work together to suppress radial offset, achieving zero-yawing positioning of the shaft system. Simultaneously, the clamping cylinder applies pressure at the same height to avoid lateral force components, and dynamically adjusts the preload to maintain the stability of the axis center. The three mechanisms work together to ensure the high uniformity of the air gap between the motor shaft and the stator, reducing friction loss and vibration noise, and ensuring high-precision and high-reliability operation of the motor.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a utility model Figure 1 Another perspective illustration;

[0023] In the diagram: 1. Base, 2. End plate, 3. Intermediate plate, 4. Slide rail, 5. Slide cylinder, 6. Positioning groove, 7. Inlet, 8. Support 1, 9. Support 2, 10. Cylinder mounting plate, 11. Tightening cylinder. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] See Figure 1 and Figure 2This motor assembly device forms a dual-station structure with a vertical end plate 2 at the outer end of the base 1 and a sliding intermediate plate 3 in the middle. A slide rail 4 is fixed to the center of the base, perpendicular to both the end plate 2 and the intermediate plate 3. A slide cylinder 5 drives the intermediate plate 3 to move back and forth along the slide rail 4. Equal-sized and equal-height positioning slots 6 on the top of the end plate 2 and the intermediate plate 3 synchronously limit the motor housing and stator ends. The slide cylinder 5 precisely adjusts the distance between the intermediate plate 3 and the end plate 2, achieving coaxial alignment and linear assembly of the motor housing and stator assembly. The height and dimensions of the positioning slots 6 on the end plate and the intermediate plate are strictly consistent, ensuring the coaxial positioning reference between the motor housing and the stator ends. The slide rail 4 and the slide cylinder 5 work together to achieve linear, offset-free movement of the intermediate plate 3, ensuring rigid alignment of the assembly axis. The slide cylinder 5 is programmable and can adjust the position of the intermediate plate 3 to precisely adapt to the assembly gap requirements of different specifications of motor components. The combination of cylinder drive and slide rail 4 guide eliminates random errors from manual operation. The positioning slot 6 provides dual-station synchronous limiting, simplifying the assembly process. The integrated structure of the base 1 enhances its resistance to deformation, ensuring high repeatability and consistency in mass production.

[0026] The top of the positioning groove 6 is provided with a tapered inlet 7, the upper opening size of which is larger than the lower opening size at the connection with the positioning groove 6, forming a guide channel that is wider at the top and narrower at the bottom; when the motor housing or stator assembly is lowered, the enlarged opening surface of the inlet 7 first captures the edge of the component, and guides the component to automatically slide into the positioning groove 6 through the tapered slope, using geometric constraints to correct the positional deviation of the component when it is initially placed, and realizes the function of rapid self-centering.

[0027] Multiple positioning protrusions are provided on the inner sides of the end plate 2 and the intermediate plate 3 facing each other. During the assembly process of the motor housing and the stator assembly, when the motor component is sent into the assembly area between the end plate 2 and the intermediate plate 3, the positioning protrusions on the inner sides of the two plates simultaneously abut against the outer surface of the component through multi-point contact, forming discretely distributed geometric constraint points. The rigid limiting effect of the protrusion structure is used to correct the radial position offset of the component, ensuring that the component maintains a preset center alignment state in the axial direction, and avoiding axial tilting caused by assembly gaps.

[0028] Support 1 8 is provided on the outer side of end plate 2, and support 2 9 is provided on the outer side of middle plate 3. The upper ends of both supports are designed as open structures. During assembly, the stator shaft of the motor is embedded in the openings of support 1 8 and support 2 9. The components are laterally limited by the opening contours on the outer side of the supports, while allowing the components to be freely lowered or raised in the vertical direction. Together with the positioning grooves 6 and positioning protrusions on the inner side of end plate 2 and middle plate 3, they form a bidirectional constraint to ensure the stable positioning of the components in multiple dimensions.

[0029] The end plate 2 and the middle plate 3 each have four positioning protrusions on one side, which match the corresponding grooves at the end of the motor housing.

[0030] The centers of support 8, support 9, and the two positioning slots 6 are strictly coaxial. When assembling the motor housing and stator assembly, the component to be assembled is initially guided through the inlet 7 of the positioning slot 6 and then lowered vertically. Its extended end is simultaneously embedded into the upper opening of support 8 and support 9. Through the coaxial distribution of the positioning slots 6 and the coincidence of the centers of the two supports, a multi-level concentric alignment channel is formed through the assembly component. This ensures that the component does not shift or move along the axial direction during the vertical drop, eliminating the risk of assembly misalignment caused by the discrete positioning reference. Finally, seamless coaxial assembly of the motor housing, stator, and motor shaft is achieved.

[0031] A clamping cylinder 11 is fixed to the top of the cylinder mounting plate 10 at the end of the base 1. The axis of its telescopic rod is flush with the height of the second support 9. After the motor stator assembly is assembled into the opening of the first support 8 and the second support 9, the telescopic rod of the clamping cylinder 11 extends horizontally along the axial direction and presses against the outer end face of the motor shaft placed on the second support 9. The cylinder outputs thrust to squeeze the motor shaft into the motor. At the same time, the equal height design of the telescopic rod and the second support 9 ensures that the pressure on the contact surface is evenly distributed and avoids local stress concentration, thereby achieving axial locking of the motor housing and internal components without tilting.

[0032] The working principle of this utility model is as follows:

[0033] During motor assembly, the motor stator is initially placed into the motor housing. At this time, the two ends of the motor shaft are positioned in the slots of support 8 and support 9. The grooves at both ends of the motor housing are aligned with the positioning protrusions on the inner side of end plate 2 and intermediate plate 3 to assist in positioning. Then, the clamping cylinder 11 and slide cylinder 2 are activated to clamp the stator and motor shaft respectively, pressing the stator into the motor housing to complete the assembly. After the motor assembly is completed, the clamping cylinder 11 and slide cylinder 2 are reset, and the motor can be removed.

[0034] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0035] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0036] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An electric machine assembly device comprising a base (1), characterised in that: The outer end of the base (1) is a vertically mounted end plate (2), the middle part of the base (1) is a movable intermediate plate (3), the middle of the base (1) has a slide rail (4) that is vertically mounted to the end plate (2) and the intermediate plate (3), a slide cylinder (5) is mounted on the slide rail (4), the slider of the slide cylinder (5) is fixedly connected to the intermediate plate (3), the upper part of the end plate (2) and the intermediate plate (3) has positioning grooves (6) of equal size and height, the positioning grooves (6) are used for limiting the motor housing and stator end.

2. An electric machine assembly according to claim 1, characterized in that: The upper end of the positioning groove (6) has an open inlet (7), and the upper opening of the inlet (7) is larger than the lower opening that contacts the positioning groove (6).

3. An electric machine assembly arrangement according to claim 1 or 2, characterized in that: There are multiple protruding positioning protrusions on the inner sides of the end plate (2) and the middle plate (3) facing each other.

4. An electric machine assembly according to claim 3, characterized in that: The outer side of the end plate (2) has support one (8), and the outer side of the middle plate (3) has support two (9). Support one (8) and support two (9) have openings at their upper ends.

5. An electric machine assembly according to claim 4, characterized in that: The centers of support one (8), support two (9), and the two positioning grooves (6) are located on the same axis.

6. An electric machine assembly according to claim 5, characterized in that: The other end of the base (1) is a cylinder mounting plate (10), and a clamping cylinder (11) is installed at the top of the cylinder mounting plate (10). The telescopic rod of the clamping cylinder (11) is at the same height as the support (9).

7. An electric motor assembly according to claim 5, wherein: There are four positioning protrusions on one side of the end plate (2) and the middle plate (3).

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