Self-correcting stator core laminating tool
By introducing a self-aligning rod and a servo motor-driven screw system into the stator core stacking fixture, the problems of offset and misalignment during the stator core stacking process are solved, stacking accuracy and efficiency are improved, and the stability and ease of maintenance of the fixture are enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN RONGWANG PRECISION HARDWARE CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional stator core stacking fixtures lack precise guiding and positioning mechanisms, which makes the stator cores prone to shifting or misalignment during the stacking process, affecting product accuracy and performance. Furthermore, they are difficult to adjust and reduce production efficiency.
A self-correcting stator core stacking fixture is adopted. By combining self-correcting rods and guide grooves evenly arranged on the stacking worktable with a servo motor-driven screw, adaptive correction and stacking are achieved, thereby improving the accuracy and efficiency of the stator core.
This technology improves the accuracy and efficiency of stator core lamination, enhances structural stability and safety, facilitates the replacement and maintenance of self-aligning rods, and improves production efficiency and product quality.
Smart Images
Figure CN224191791U_ABST
Abstract
Description
Self-correcting stator core stacking fixture Technical Field
[0001] This utility model relates to the field of motor parts processing technology, specifically to a self-correcting stator core stacking fixture. Background Technology
[0002] With the rapid development of the power industry, the stator core, as a core component of motors and generators, has a crucial impact on the operational stability and service life of the entire equipment. The stator core lamination process, a key step in the production process, directly affects the product's precision, strength, and electromagnetic performance. Traditional tooling often lacks precise guiding and positioning mechanisms, leading to stator core misalignment or displacement during lamination, affecting the overall precision and performance of the product. Furthermore, traditional tooling has a complex structural design and is difficult to adjust, often requiring significant manpower and time for calibration and debugging, thus reducing production efficiency. Summary of the Invention
[0003] The purpose of this invention is to provide a self-correcting stator core stacking fixture to solve the problems of inaccurate positioning and low efficiency in existing stator core stacking as mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A self-correcting stator core stacking fixture includes a stacking worktable for stacking stator cores, wherein a plurality of self-correcting rods are uniformly and equally spaced in a ring on the top surface of the stacking worktable.
[0006] The top surface of the stacking worktable is provided with guide grooves that are the same number as the self-correcting rods, corresponding in position and arranged in a ring. Screws are installed in the guide grooves.
[0007] The outer wall of the stacking worktable is equipped with servo motors that are the same number as the guide slides, corresponding in position and working synchronously. The output shaft of the servo motor is coaxially connected to the screw at the corresponding position.
[0008] The bottom surface of the self-correcting rod is connected to a guide slide block that is adapted to and slidably fitted with the cross-sectional dimensions of the guide slide groove, and the guide slide block is threadedly connected to the screw.
[0009] Preferably, bearings for fixing the screw are embedded on the inner walls of both ends of the guide groove.
[0010] Preferably, both the guide groove and the guide slide have a convex cross-section.
[0011] Preferably, a connecting column is coaxially mounted on the top surface of the guide slide, and a plug hole is coaxially opened on the top surface of the connecting column.
[0012] Preferably, the bottom of the self-calibrating rod is coaxially mounted with a connector that is compatible with the cross-sectional dimensions of the insertion hole and is inserted into it.
[0013] Preferably, the outer walls of the connector are symmetrically provided with fixing screw holes on both sides, and the outer wall of the connecting post is provided with a locking bolt that is adapted to the size of the fixing screw hole and is threadedly connected.
[0014] Preferably, the cross-section of the connector and the connector hole is rectangular.
[0015] Preferably, the cross-section of the self-correcting rod is adapted to the cross-sectional dimensions of the internal teeth of the stator core and is inserted into it.
[0016] Compared with existing technologies, the beneficial effects of this utility model are:
[0017] 1. In this self-correcting stator core stacking fixture, a stacking worktable serves as the basic platform for stator core stacking. Self-correcting rods arranged in a ring at uniform intervals on the worktable can correct the stator core. Guide grooves provide guidance for the movement of the self-correcting rods. A screw is threadedly connected to a guide slide. A servo motor drives the screw to rotate, thereby moving the self-correcting rods along the guide grooves. This enables adaptive correction and stacking of stator cores of different specifications, giving the fixture a self-correcting function and improving the accuracy and efficiency of stator core stacking.
[0018] 2. In the self-correcting stator core stacking fixture, both the guide groove and the guide slide block have convex cross sections, which effectively prevents the guide slide block from detaching from the guide groove when it slides in the guide groove, thereby enhancing the stability and safety of the structure and ensuring the guiding accuracy of the self-correcting rod during its movement.
[0019] 3. In the self-correcting stator core stacking fixture, a connecting column is coaxially installed on the top surface of the guide slide, and a plug hole is coaxially opened on the top surface of the connecting column. A plug connector that matches the cross-sectional size of the plug hole and is plugged in is coaxially installed on the bottom of the self-correcting rod, making it easier to connect and disassemble the self-correcting rod and the guide slide, and facilitating the replacement or maintenance of the self-correcting rod. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.
[0021] Figure 1 is a schematic diagram of the structure of this utility model;
[0022] Figure 2 is a schematic diagram of the present invention without the self-calibration rod installed;
[0023] Figure 3 is an exploded structural diagram of the self-correcting rod and guide slide of this utility model;
[0024] Figure 4 is a top view of the stator core stacking structure of this utility model.
[0025] 10. Stacking worktable; 11. Guide chute; 12. Screw;
[0026] 20. Servo motor;
[0027] 30. Self-calibrating rod; 31. Connector; 32. Fixing screw hole;
[0028] 40. Guide slide; 41. Connecting post; 42. Insertion hole; 43. Locking bolt;
[0029] 50. Stator core. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component 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 utility model.
[0032] A self-correcting stator core stacking fixture, as shown in Figures 1-4, includes a stacking worktable 10 for stacking stator cores 50. The top surface of the stacking worktable 10 is equipped with several uniformly spaced, ring-shaped self-correcting rods 30. The top surface of the stacking worktable 10 has guide grooves 11 arranged in a ring, corresponding to the number and position of the self-correcting rods 30. Screws 12 are installed within the guide grooves 11. Servo motors 20, corresponding to the number and position of the guide grooves 11 and operating synchronously, are installed on the outer wall of the stacking worktable 10. The output shaft of the servo motor 20 is coaxially connected to the corresponding screw 12. The bottom surface of the self-correcting rods 30 is connected to the guide grooves 11. A guide slide 40 with a matching cross-sectional size and sliding fit is provided. The guide slide 40 is threadedly connected to the screw 12. The stacking worktable 10 serves as the base platform for stacking the stator core 50. The self-correcting rods 30, which are evenly spaced and arranged in a ring on the worktable, can correct the stator core 50. The guide groove 11 provides guidance for the movement of the self-correcting rods 30. The screw 12 is threadedly connected to the guide slide 40. The servo motor 20 drives the screw 12 to rotate, thereby driving the self-correcting rods 30 to move along the guide groove 11. This enables adaptive correction and stacking of stator cores 50 of different specifications, giving the tooling a self-correcting function and improving the accuracy and efficiency of stator core 50 stacking.
[0033] It is worth noting that bearings for fixing the screw 12 are embedded on the inner walls of both ends of the guide groove 11, which makes the screw 12 more stable and smooth during rotation, reduces friction and wear, extends the service life of the screw 12, and ensures the accuracy and reliability of the movement of the self-correcting rod 30.
[0034] It is worth noting that the cross-sections of both the guide groove 11 and the guide slide block 40 are convex, which effectively prevents the guide slide block 40 from detaching from the guide groove 11 when it slides within the guide groove 11, thereby enhancing the stability and safety of the structure and ensuring the guiding accuracy of the self-correcting rod 30 during its movement.
[0035] Furthermore, a connecting post 41 is coaxially mounted on the top surface of the guide slide 40, and a plug hole 42 is coaxially opened on the top surface of the connecting post 41. A plug connector 31 that matches the cross-sectional size of the plug hole 42 and is plugged in is coaxially mounted on the bottom of the self-calibrating rod 30, making it easier to connect and disassemble the self-calibrating rod 30 and the guide slide 40, and facilitating the replacement or maintenance of the self-calibrating rod 30.
[0036] Specifically, fixing screw holes 32 are symmetrically provided on the outer walls of both sides of the connector 31, and locking bolts 43 that are threaded and matched to the size of the fixing screw holes 32 are installed on the outer wall of the connecting post 41. By tightening the locking bolts 43, the connection between the self-correcting rod 30 and the guide slide 40 is made more secure, preventing the self-correcting rod 30 and the guide slide 40 from loosening during operation, and ensuring the stability of the correction and stacking work.
[0037] The cross-sections of the connector 31 and the connector hole 42 are rectangular, which can effectively limit the rotation of the self-calibrating rod 30 relative to the guide slide 40, ensure the accuracy of the direction of the self-calibrating rod 30 during movement, and improve the calibration effect.
[0038] In addition, the cross-section of the self-aligning rod 30 is compatible with the cross-sectional dimensions of the internal teeth of the stator core 50 and is plugged into it, so that the self-aligning rod 30 can accurately correct and position the internal teeth of the stator core 50, improve the stacking accuracy of the stator core 50 and ensure product quality.
[0039] The working principle of this self-correcting stator core stacking fixture:
[0040] Tooling preparation: Carefully inspect the stacking worktable 10 to ensure that its surface is flat and free of debris, providing a stable foundation for the stacking of stator cores; check the screw 12 in the guide slide 11 to confirm that it can rotate flexibly and stably under the support of the bearings at both ends; check the working status of the servo motor 20 to ensure that its output shaft is firmly coaxially connected with the screw 12 and can drive the screw normally.
[0041] Self-aligning rod installation: Select a self-aligning rod 30 that matches the internal tooth size of the stator core 50, and then precisely insert the plug 31 at the bottom of the self-aligning rod 30 into the plug hole 42 of the connecting column 41 on the top surface of the guide slide 40. The rectangular cross-section of the two restricts the rotation of the self-aligning rod. The self-aligning rod 30 is firmly fixed on the guide slide 40 by tightly threading the locking bolt 43 into the fixing screw hole 32 on the plug 31. At the same time, the U-shaped guide groove 11 and the structure of the guide slide 40 prevent the guide slide from falling out.
[0042] Pre-adjustment of self-calibrating rod position: According to the specifications of the stator core 50 to be stacked, the servo motor 20 is started in advance, which drives the screw 12 to rotate. The screw 12 drives the guide slide 40 to move along the guide slide 11, thereby driving the self-calibrating rod 30 to adjust to a roughly suitable position, creating conditions for the placement of the stator core.
[0043] Place the first set of stator cores and perform fine calibration: Place a set of stator cores stably on the stacking worktable 10 so that the self-calibrating rod 30 initially contacts the internal teeth of the stator core; then fine-tune the servo motor 20 again to precisely adjust the position of the self-calibrating rod 30 so that it is precisely matched with the internal teeth of the stator core, thus completing the precise calibration of this set of stator cores.
[0044] Stator cores are stacked sequentially: After the first set of stator cores is calibrated, the subsequent stator cores are stacked sequentially as required. The calibrated self-calibrating rod 30 and the stable tooling structure are used to ensure that each layer of stator cores can be accurately positioned until the entire stacking work is completed.
[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A self-correcting stator core stacking fixture, comprising a stacking worktable (10) for stacking stator cores (50), characterized in that: The top surface of the stacking worktable (10) is equipped with several self-correcting rods (30) arranged in a ring at equal intervals; the top surface of the stacking worktable (10) is provided with guide grooves (11) that are the same number as the self-correcting rods (30), corresponding in position and arranged in a ring, and screws (12) are installed in the guide grooves (11); the outer wall of the stacking worktable (10) is equipped with servo motors (20) that are the same number as the guide grooves (11), corresponding in position and working synchronously, and the output shaft of the servo motors (20) is coaxially connected to the screws (12) at the corresponding positions; the bottom surface of the self-correcting rods (30) is connected with guide slides (40) that are adapted to the cross-sectional size of the guide grooves (11) and slide in fit, and the guide slides (40) are threadedly connected to the screws (12).
2. The self-correcting stator core stacking fixture according to claim 1, characterized in that: Bearings for fixing screws (12) are embedded on the inner walls of both ends of the guide groove (11).
3. The self-correcting stator core stacking fixture according to claim 1, characterized in that: The cross-sections of the guide groove (11) and the guide slide (40) are both convex.
4. The self-correcting stator core stacking fixture according to claim 1, characterized in that: The top surface of the guide slide (40) is coaxially mounted with a connecting column (41), and the top surface of the connecting column (41) is coaxially provided with a plug hole (42).
5. The self-correcting stator core stacking fixture according to claim 4, characterized in that: The bottom of the self-calibrating rod (30) is coaxially mounted with a plug connector (31) that is compatible with the cross-sectional dimensions of the plug hole (42) and is plugged in.
6. The self-correcting stator core stacking fixture according to claim 5, characterized in that: The connector (31) has symmetrically provided fixing screw holes (32) on both sides of its outer wall, and the connecting column (41) has a locking bolt (43) that is compatible with the size of the fixing screw hole (32) and is threadedly connected.
7. The self-correcting stator core stacking fixture according to claim 5, characterized in that: The cross-section of the connector (31) and the connector hole (42) is rectangular.
8. The self-correcting stator core stacking fixture according to claim 1, characterized in that: The cross-section of the self-correcting rod (30) is adapted to the cross-sectional dimensions of the internal teeth of the stator core (50) and is inserted into it.