stator top leveling mechanism

Abstract

The application provides a stator top flat mechanism, specifically comprising a top flat support, an upper top flat assembly and a lower top flat assembly. The top flat support is provided with a placement space for accommodating the stator and a stator tooling, providing a support reference for the whole top flat operation. The upper top flat assembly is installed on the upper part of the top flat support, with its movable end extending downward and into the placement space, contacting the upper end face of the stator and exerting downward pressure during the top flat process. The lower top flat assembly is installed on the lower part of the top flat support, with its movable end extending upward and penetrating through the bottom of the stator tooling, finally abutting against the lower end face of the stator to provide upward support force. The upper top flat assembly and the lower top flat assembly work together to balance the axial force of the stator, ensuring the accurate axial pressing of the stator along the stator tooling, and avoiding the deflection or positioning deviation caused by unilateral force.

Description

Technical Field

[0001] This application belongs to the technical field of stator top-flattening mechanism, and more specifically, relates to a stator top-flattening mechanism. Background Technology

[0002] In the manufacturing process of motor stators, the stator must be precisely inserted into a specialized fixture before welding the stator wire harness. The accuracy of this step directly affects the subsequent welding quality and motor performance. Traditionally, when using manual insertion, the alignment of the stator with the fixture's positioning slots relies entirely on the operator's visual judgment and manual adjustment. Manual operation makes it difficult to ensure a perfect fit between each stator slot and the fixture's positioning structure, easily leading to axial tilting or circumferential deflection. Furthermore, differences in the force application habits of different operators can result in inconsistent insertion depths, causing the stator end face and the fixture's reference surface to fail to achieve the required parallelism. This instability in insertion accuracy not only causes deviations in the electrical performance of the wire harness after welding but can also lead to defects such as incomplete welds and misalignments during the welding process, ultimately affecting the reliability and lifespan of the motor. Utility Model Content

[0003] The purpose of this application is to provide a stator leveling mechanism to solve the technical problem of low positioning accuracy of the stator when installed in the tooling in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] A stator top-flattening mechanism is provided, including...

[0006] The top-mounted support provides space for mounting the stator and stator fixtures;

[0007] The upper top flat assembly is mounted on the top flat bracket and is located above the stator fixture; the movable end of the upper top flat assembly extends into the placement space;

[0008] The lower top flat assembly is mounted on the top flat bracket and located below the stator fixture; the movable end of the lower top flat assembly extends into the placement space;

[0009] The movable end of the upper top flat assembly abuts against the upper end of the stator, and the movable end of the lower top flat assembly passes through the stator fixture and abuts against the lower end of the stator; the upper top flat assembly and the lower top flat assembly work together to press the stator into the stator fixture.

[0010] As a further improvement to the above technical solution:

[0011] Optionally, the top flat support includes a top plate, a bottom plate, and a connecting column. The top plate is connected to one end of the connecting column, and the bottom plate is connected to the other end of the connecting column. The top plate, the bottom plate, and the connecting column enclose the placement space. The upper top flat assembly is installed on the top plate, and the lower top flat assembly is installed on the bottom plate.

[0012] Optionally, the upper top flat assembly includes an upper top flat drive and an upper top flat seat. The fixed end of the upper top flat drive is connected to the top plate, and the movable end of the upper top flat drive is connected to the upper top flat seat. The upper top flat seat is located within the placement space.

[0013] Optionally, the upper top flat seat is provided with an upper support protrusion extending along the driving direction of the upper top flat drive member. There are multiple upper support protrusions, and each upper support protrusion is arranged sequentially along the circumference. The upper support protrusion is used to abut against the upper pressing step of the stator.

[0014] Optionally, the upper top plate assembly includes a guide rod, the upper top plate seat is connected to one end of the guide rod, and the guide rod is movably inserted into the top plate.

[0015] Optionally, the upper top plate assembly further includes a linear bearing mounted on the top plate, and the guide rod is movably inserted into the linear bearing.

[0016] Optionally, the lower top flat assembly includes a lower top flat drive and a lower top flat seat. The fixed end of the lower top flat drive is connected to the base plate, and the movable end of the lower top flat drive is connected to the lower top flat seat. The lower top flat seat is located within the placement space.

[0017] Optionally, the lower top flat seat is provided with a lower support protrusion extending along the driving direction of the lower top flat drive member. There are multiple lower support protrusions, and each lower support protrusion is arranged sequentially along the circumference. The lower support protrusion is supported on the lower pressing step of the stator.

[0018] Optionally, the stator fixture is provided with mounting holes, and the upper and lower top flat components work together to press the stator into the mounting holes.

[0019] Optionally, the mounting hole is provided with a radially protruding positioning protrusion, which engages with the positioning groove on the stator for limiting and positioning.

[0020] The beneficial effects of the stator top-leveling mechanism provided in this application are as follows:

[0021] The stator leveling mechanism provided in this application specifically includes a leveling bracket, an upper leveling assembly, and a lower leveling assembly. The leveling bracket has a space for accommodating the stator and stator fixture, providing a support reference for the entire leveling operation. The upper leveling assembly is installed on the upper part of the leveling bracket, with its movable end extending downwards and into the space. During leveling, it contacts the upper surface of the stator and applies downward pressure. The lower leveling assembly is installed on the lower part of the leveling bracket, with its movable end extending upwards and penetrating the bottom of the stator fixture, ultimately abutting against the lower surface of the stator, providing upward support. The upper and lower leveling assemblies work together to ensure balanced axial force on the stator, ensuring precise pressing of the stator along the axial direction of the stator fixture and avoiding skewness or positioning deviation caused by unilateral force application. This mechanism effectively overcomes the problem of uneven stator installation caused by uneven force or misalignment during traditional manual insertion by applying force from both above and below. This improves the positioning accuracy of the stator within the tooling and provides a reliable assembly foundation for subsequent wire harness welding processes. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A three-dimensional structural diagram of the stator top-flattening mechanism provided in this application;

[0024] Figure 2 A three-dimensional structural diagram of the lower top flat seat of the stator top flat mechanism provided in this application;

[0025] Figure 3 A three-dimensional structural schematic diagram of the stator tooling for the stator top-flattening mechanism provided in this application;

[0026] Figure 4 This is a three-dimensional structural diagram of the stator of the stator top-flattening mechanism provided in this application.

[0027] The following are the labeling elements in the figure:

[0028] 1. Top flat bracket; 11. Top plate; 12. Base plate; 13. Connecting column; 2. Stator; 21. Upper pressing step; 22. Lower pressing step; 23. Positioning groove; 3. Stator fixture; 31. Mounting hole; 32. Positioning protrusion; 4. Upper top flat assembly; 41. Upper top flat drive component; 42. Upper top flat seat; 43. Guide rod; 44. Linear bearing; 5. Lower top flat assembly; 51. Lower top flat drive component; 52. Lower top flat seat; 521. Lower support protrusion. Detailed Implementation

[0029] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0031] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] To address the issue of insufficient positioning accuracy of stator 2 during installation into stator fixture 3 due to manual operation, such as... Figure 1 As shown, this application proposes a stator top-flattening mechanism, which specifically includes a top-flattening bracket 1, an upper top-flattening component 4, and a lower top-flattening component 5.

[0034] The top leveling bracket 1 is provided with a space for accommodating the stator 2 and stator tooling 3, providing a support reference for the entire top leveling operation.

[0035] The upper flattening assembly 4 is installed on the upper part of the flattening bracket 1, with its movable end extending downwards and into the mounting space. During the flattening process, it contacts the upper end face of the stator 2 and applies downward pressure. The lower flattening assembly 5 is installed on the lower part of the flattening bracket 1, with its movable end extending upwards and penetrating the bottom of the stator fixture 3, ultimately abutting against the lower end face of the stator 2, providing upward support. The upper flattening assembly 4 and the lower flattening assembly 5 work together to ensure that the stator 2 is subjected to balanced axial force, ensuring that the stator 2 is accurately pressed into the stator fixture 3 along the axial direction, avoiding skewing or positioning deviation caused by unilateral force application.

[0036] This mechanism effectively overcomes the problem of uneven stator 2 installation caused by uneven force or inaccurate positioning during traditional manual insertion by applying force from both above and below. This improves the positioning accuracy of stator 2 within the tooling and provides a reliable assembly foundation for subsequent wire harness welding processes.

[0037] like Figure 1 As shown in a specific embodiment of this application, the top-mounted support 1 includes a top plate 11, a bottom plate 12, and a connecting column 13. The connecting column 13 is vertically disposed between the top plate 11 and the bottom plate 12, and its two ends are fixedly connected to the top plate 11 and the bottom plate 12 respectively, forming a stable frame-type support structure. The top plate 11, the bottom plate 12, and the connecting column 13 together enclose a space for accommodating the stator 2 and the stator tooling 3.

[0038] The upper top-flattening assembly 4 is mounted on the top plate 11, with its movable end extending vertically downwards and into the mounting space to contact the upper surface of the stator 2 during the top-flattening operation. The lower top-flattening assembly 5 is mounted on the bottom plate 12, with its movable end extending upwards through the stator fixture 3 and ultimately forming a supporting contact with the stator 2. The stator fixture 3 is supported and fixed by an external support plate, and the stator 2 is pressed into the stator fixture 3 under the coordinated driving action of the upper top-flattening assembly 4 and the lower top-flattening assembly 5.

[0039] like Figure 1 As shown, in a specific embodiment of this application, the upper top flat assembly 4 includes an upper top flat drive member 41 and an upper top flat seat 42. The fixed end of the upper top flat drive member 41 is fixed to the top plate 11 by means of bolts or other methods to ensure stability during the driving process. The movable end of the upper top flat drive member 41 is linked to the upper top flat seat 42 through a rigid connection structure, and the movable end can reciprocate linearly in the vertical direction. The upper top flat seat 42 is disposed inside the mounting space. When the upper top flat drive member 41 is activated, its movable end drives the upper top flat seat 42 to move downward, applying uniform axial pressure to the stator 2 and avoiding positioning deviation caused by local stress concentration.

[0040] like Figure 1As shown in a specific embodiment of this application, the bottom of the upper top flat seat 42 is provided with a plurality of upper support protrusions extending axially along the upper top flat drive member 41. These upper support protrusions are evenly distributed in a circumferential array on the end face of the upper top flat seat 42. The end of each upper support protrusion is machined to a contact surface that matches the upper pressing step portion 21 of the stator 2, ensuring that the contact area is maximized when force is applied. When the upper top flat drive member 41 drives the upper top flat seat 42 to move downward, each upper support protrusion synchronously presses against the corresponding position of the upper pressing step portion 21 of the stator 2, forming a multi-point uniform force application structure. This circumferentially distributed upper support protrusion effectively avoids the stator 2 from tilting that may be caused by single-point force application, and at the same time reduces the risk of local stress concentration by dispersing pressure points, thereby ensuring that the stator 2 always remains horizontal during the press-fitting process.

[0041] like Figure 1 As shown, in a specific embodiment of this application, the upper top flat assembly 4 is further provided with a guide rod 43 to enhance the movement stability of the upper top flat seat 42. One end of the guide rod 43 is rigidly connected to the upper top flat seat 42, and the other end passes through a pre-set guide hole on the top plate 11. The guide rod 43 and the guide hole of the top plate 11 form a sliding pair, providing linear guidance for the up and down movement of the upper top flat seat 42. The axis of the guide rod 43 is parallel to the driving direction of the upper top flat drive member 41, ensuring that the upper top flat seat 42 does not undergo radial displacement during movement. The number of guide rods 43 can be set to single or multiple according to actual load requirements. When multiple guide rods 43 are used, the rods are symmetrically distributed to balance the lateral torque. This guiding structure effectively eliminates the risk of swaying of the upper top flat seat 42 during movement, ensuring that the upper support protrusion on the upper top flat seat 42 can be accurately aligned with the upper pressing step 21 of the stator 2, thereby realizing the stator press-fitting operation.

[0042] like Figure 1 As shown, in one specific embodiment of this application, the upper top flat assembly 4 further includes a linear bearing 44. The linear bearing 44 is fixed in the guide hole of the top plate 11, and its inner hole forms a sliding fit with the guide rod 43. The guide rod 43 can slide axially along the inner hole of the linear bearing 44, while the linear bearing 44 effectively reduces the frictional resistance of the guide rod 43 during movement. The mounting axis of the linear bearing 44 is parallel to the driving axis of the upper top flat drive component 41, ensuring that the movement trajectory of the upper top flat seat 42 is always perpendicular to the mounting reference surface of the stator tooling 3. The linear bearing 44 improves the movement accuracy and service life of the guide rod 43, while reducing the wear of the upper top flat assembly 4 during long-term operation.

[0043] like Figure 1 and Figure 2As shown, in a specific embodiment of this application, the lower top flat assembly 5 includes a lower top flat drive 51 and a lower top flat seat 52. The fixed end of the lower top flat drive 51 is rigidly connected to the base plate 12, and its movable end is connected to the lower top flat seat 52 via a coupling or flange structure to transmit power. The lower top flat seat 52 is disposed inside the mounting space. When the lower top flat drive 51 is activated, its movable end drives the lower top flat seat 52 to move upward in the vertical direction, passing through the bottom positioning hole of the stator fixture 3 and forming a stable contact with the stator 2. The stroke control accuracy of the lower top flat drive 51 directly affects the final positioning position of the stator 2. Therefore, a servo drive or a pneumatic-hydraulic booster drive with position feedback function is adopted to achieve positioning accuracy control.

[0044] like Figure 1 and Figure 2 As shown in a specific embodiment of this application, the working end face of the lower top flat seat 52 is provided with a plurality of lower support protrusions 521 extending axially along the lower top flat drive member 51. These lower support protrusions 521 are circumferentially symmetrically distributed on the end face of the lower top flat seat 52. The top of each lower support protrusion 521 is machined into a contact plane that matches the lower pressing step portion 22 of the stator 2, ensuring that the contact surfaces are completely in contact when force is applied. When the lower top flat drive member 51 drives the lower top flat seat 52 to move upward, each lower support protrusion 521 synchronously lifts the corresponding position of the lower pressing step portion 22 of the stator 2, forming a uniformly distributed support force system.

[0045] like Figure 3 As shown, in a specific embodiment of this application, the stator fixture 3 has a mounting hole 31 at its center that matches the shape of the stator 2. The axial depth of the mounting hole 31 is slightly greater than the installation height of the stator 2, ensuring that the stator 2 can be fully pressed into place. When the upper flat seat 42 of the upper flat assembly 4 applies downward pressure, and at the same time the lower flat seat 52 of the lower flat assembly 5 supports the stator 2 to move downward, the stator 2 moves smoothly along the axial direction under the bidirectional force and is finally pressed into the preset position of the mounting hole 31.

[0046] like Figure 3 and Figure 4As shown in a specific embodiment of this application, the inner circumferential wall of the mounting hole 31 is provided with a positioning protrusion 32 that protrudes radially inward. The cross-sectional shape of the positioning protrusion 32 forms a precise concave-convex fit with the positioning groove 23 on the outer circumference of the stator 2. The positioning protrusion 32 extends axially along the mounting hole 31, and its height matches the depth of the positioning groove 23. When the stator 2 is pressed into the mounting hole 31, the positioning protrusion 32 automatically embeds into the positioning groove 23 of the stator 2, achieving precise circumferential positioning. The number and distribution of the positioning protrusions 32 correspond to the positioning groove 23 of the stator 2, and are typically set to 2-6 and evenly distributed along the circumference to ensure that the stator 2 does not rotate circumferentially during installation. The fit structure between the positioning protrusion 32 and the positioning groove 23 not only ensures the circumferential positioning accuracy of the stator 2 in the tooling, but also effectively prevents the stator 2 from undergoing circumferential displacement during subsequent processing, providing a stable positioning reference for the wire harness welding process.

[0047] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stator top-leveling mechanism, characterized in that, include The top-mounted support provides space for mounting the stator and stator fixtures; The upper top flat assembly is mounted on the top flat bracket and is located above the stator fixture; the movable end of the upper top flat assembly extends into the placement space; The lower top flat assembly is mounted on the top flat bracket and located below the stator fixture; the movable end of the lower top flat assembly extends into the placement space; The movable end of the upper top flat assembly abuts against the upper end of the stator, and the movable end of the lower top flat assembly passes through the stator fixture and abuts against the lower end of the stator; the upper top flat assembly and the lower top flat assembly work together to press the stator into the stator fixture.

2. The stator leveling mechanism as described in claim 1, characterized in that, The top-level support includes a top plate, a bottom plate, and a connecting column. The top plate is connected to one end of the connecting column, and the bottom plate is connected to the other end of the connecting column. The top plate, the bottom plate, and the connecting column enclose the installation space. The upper top-level component is installed on the top plate, and the lower top-level component is installed on the bottom plate.

3. The stator leveling mechanism as described in claim 2, characterized in that, The upper top flat assembly includes an upper top flat drive component and an upper top flat base. The fixed end of the upper top flat drive component is connected to the top plate, and the movable end of the upper top flat drive component is connected to the upper top flat base. The upper top flat base is located within the placement space.

4. The stator leveling mechanism as described in claim 3, characterized in that, The upper top flat seat is provided with an upper support protrusion extending along the driving direction of the upper top flat drive member. There are multiple upper support protrusions, and each upper support protrusion is arranged sequentially along the circumference. The upper support protrusion is used to abut against the upper pressing step of the stator.

5. The stator leveling mechanism as described in claim 3, characterized in that, The upper top plate assembly includes a guide rod, and the upper top plate seat is connected to one end of the guide rod. The guide rod is movably inserted into the top plate.

6. The stator leveling mechanism as described in claim 5, characterized in that, The top flat assembly also includes a linear bearing, which is mounted on the top plate, and the guide rod is movably inserted into the linear bearing.

7. The stator leveling mechanism as described in claim 2, characterized in that, The lower top flat assembly includes a lower top flat drive and a lower top flat base. The fixed end of the lower top flat drive is connected to the base plate, and the movable end of the lower top flat drive is connected to the lower top flat base. The lower top flat base is located within the placement space.

8. The stator top-flattening mechanism as described in claim 7, characterized in that, The lower top flat seat is provided with a lower support protrusion extending along the driving direction of the lower top flat drive member. There are multiple lower support protrusions, and each lower support protrusion is arranged sequentially along the circumference. The lower support protrusion is supported on the lower pressing step of the stator.

9. The stator leveling mechanism as described in claim 1, characterized in that, The stator fixture is provided with mounting holes, and the upper and lower top flat components work together to press the stator into the mounting holes.

10. The stator top-flattening mechanism as described in claim 9, characterized in that, The mounting hole has a radially protruding positioning protrusion inside, which engages with the positioning groove on the stator.

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