In-mold large rotation structure of mold
By using an indirect transmission design with a large internal rotation structure in the mold, the problem of rotational instability caused by direct drive was solved, achieving high-precision and stable rotational machining, optimizing the internal space layout of the mold, and improving transmission efficiency.
Patent Information
- Application Number
- CN202423042571.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-10
AI Technical Summary
In existing large rotary machining dies, the direct drive method causes the rotating parts to be misaligned and unstable, and the rotary bushings are severely worn, making it impossible to completely eliminate the back force effect.
The system adopts a large-scale rotation structure within the mold, which drives the first drive wheel to rotate via a drive assembly. Combined with the indirect transmission structure of the first and second rotation assemblies, back force is eliminated, ensuring rotational accuracy and product stability.
It improves rotational accuracy and product stability, reduces noise and vibration, optimizes the internal space layout of the mold, simplifies the maintenance process, and enhances driving capability and transmission efficiency.
Smart Images
Figure CN223567480U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor core processing and manufacturing technology, specifically to a large-scale rotation structure inside a mold. Background Technology
[0002] In recent years, with the continuous improvement of equipment precision requirements, stricter requirements have been put forward for motor quality and service life. This not only requires solving the problem of uneven thickness of raw materials in the stator and rotor core laminations, but also requires ensuring the coaxiality, parallelism and dynamic balance accuracy of the stator and rotor cores. These precision requirements all need to be achieved by using large-slewing machining dies.
[0003] In large-slewing machining dies, the reducer is connected to the drive wheel, and the driven wheel is directly connected to the synchronous belt to drive the rotary bushing to work, so that the product is stacked in the rotary bushing. However, this direct drive method will generate back force during the stamping rotation, which will cause the rotating part to be misaligned and unstable. At the same time, the rotary bushing will wear. In the existing technology, the back force is eliminated by adding an external synchronous wheel cover plate, but the installation position is limited and the influence of back force cannot be completely eliminated. Utility Model Content
[0004] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a large-scale in-mold rotation structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is a large-scale in-mold rotation structure, characterized by comprising:
[0006] The transmission device includes a drive assembly and a first drive wheel, which is used to drive the first drive wheel to rotate via the drive assembly.
[0007] The rotary device includes a first rotary assembly and a second rotary assembly. The first rotary assembly is axially spaced from the first drive wheel and is linked by a synchronous belt. The second rotary assembly is correspondingly arranged with the first rotary assembly and meshes with it for transmission. It includes a rotary bushing for indirectly driving the rotary bushing to rotate via the first drive wheel.
[0008] The large rotation structure inside the mold provided by this utility model uses the drive component to drive the first active wheel to rotate as a power source, which in turn drives the rotation bushing for transmission. By adding an indirect transmission structure of the first rotation component and the second rotation component between the first active wheel and the rotation bushing, the back force generated when the drive component drives the rotation bushing to work is eliminated, so as to ensure the consistency of rotation accuracy and the stability of the product.
[0009] In some embodiments, the first rotary assembly further includes a second drive wheel, a third drive wheel, and a gear central shaft. The gear central shaft passes sequentially through the second and third drive wheels. The second drive wheel is correspondingly arranged to the first drive wheel, and the timing belt is wound between the first and second drive wheels. The outer side of the third drive wheel has a first toothed surface.
[0010] By adopting the above technical solution, the design of the gear central shaft makes the power transmission more concentrated, which helps to optimize the internal spatial layout of the mold. By passing the gear central shaft through the second and third driving wheels in sequence, different transmission ratios can be adjusted to meet the needs of different mold operations, and additional power transmission paths can be provided to enhance the driving capability of the entire system.
[0011] In some embodiments, the second and third drive wheels are fixed together by bolts.
[0012] In some embodiments, the second rotary assembly further includes a driven wheel and a rotary bushing. The rotary bushing passes sequentially through the driven wheel and the rotary bushing. The driven wheel and the third driving wheel are arranged correspondingly along the axial direction, and the driven wheel has a second tooth surface on its outer side that corresponds to the first tooth surface, for meshing and transmission with the third driving wheel.
[0013] By adopting the above technical solution, the driven wheel and the third driving wheel are axially aligned, and the outer second tooth surface corresponds to the first tooth surface, ensuring precise meshing transmission, improving transmission efficiency, and the precision of meshing transmission helps improve the accuracy of mold operation, which is especially important for molds requiring high-precision machining. The design of the rotary bushing allows for quick replacement or repair, simplifying the maintenance process.
[0014] In some embodiments, the planar needle roller bearing is provided between the driven wheel and the slewing bushing.
[0015] By adopting the above technical solution, flat needle roller bearings can provide high-precision positioning and motion control, and typically have a low coefficient of friction, which helps to reduce energy loss during power transmission.
[0016] In some embodiments, the drive assembly includes a motor and a speed reducer. The drive end of the speed reducer is rotatably connected to the first drive wheel, and the tail end of the speed reducer is connected to the drive end of the motor.
[0017] By adopting the above technical solution, the speed reducer can increase the torque output of the motor, and through the speed reducer, the high speed of the motor can be reduced to a lower speed suitable for mold operation, thereby achieving more precise control.
[0018] In some embodiments, the first rotating assembly further includes a lower bearing cover and a bearing. The lower bearing cover is located on the side of the second driving wheel away from the third driving wheel and is connected to the gear central shaft. The bearing is located at the connection between the lower bearing cover and the gear central shaft.
[0019] By adopting the above technical solution, the lower bearing cover provides an additional support point for the second drive wheel, enhancing the stability of the entire assembly. The bearing can withstand and distribute the load on the gear's central shaft, reducing the stress directly acting on the gear, and can reduce the vibration and noise generated during gear rotation, providing smoother operation.
[0020] In some embodiments, the second rotary assembly further includes a needle roller bearing cage and a radial needle roller bearing. The needle roller bearing cage is disposed on the side of the driven wheel away from the rotary bushing and is connected to the rotary bushing. The radial needle roller bearings are respectively disposed at the connection points between the rotary bushing and the needle roller bearing cage, and the rotary bushing.
[0021] By adopting the above technical solution, the design of radial needle roller bearings helps to reduce friction between the rolling elements and the bearing housing, thereby improving transmission efficiency. The needle roller bearing cage can evenly distribute the needle rollers, reducing local stress concentration and thus extending the bearing's service life.
[0022] In some embodiments, an outer synchronous wheel cover is provided on the side of the first drive wheel away from the reducer.
[0023] By adopting the above technical solution, by setting an outer synchronous pulley cover plate on the side of the outer synchronous pulley away from the reducer, it can provide additional protection and support for the large rotation structure inside the mold, ensuring the stable operation and long-term reliability of the transmission system.
[0024] In some embodiments, the drive assembly further includes a first fixing block and a second fixing block. The reducer is fixed to the first fixing block, and the motor is fixed to the second fixing block. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the transmission device of an embodiment of a large in-mold rotation structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the rotating device of an embodiment of a large rotating structure inside a mold according to the present invention;
[0027] Figure 3 This is a perspective view of an embodiment of a mold in-mold large rotation structure according to the present invention;
[0028] In the picture:
[0029] 1. Transmission device; 10. Drive assembly; 11. First drive wheel; 12. Motor; 13. Reducer; 14. Outer synchronous pulley cover plate; 15. First fixing block; 16. Second fixing block; 17. Synchronous belt; 2. Rotation device; 3. First rotation assembly; 30. Second drive wheel; 31. Third drive wheel; 32. Gear central shaft; 33. Bolt; 34. Lower bearing cover; 35. Bearing; 4. Second rotation assembly; 40. Rotation bushing; 41. Driven wheel; 42. Rotation bushing; 43. Flat needle roller bearing; 44. Needle roller bearing cage; 45. Radial needle roller bearing. Detailed Implementation
[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0031] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0032] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying 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. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0033] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0035] refer to Figures 1 to 3 , Figure 1 This diagram shows a schematic representation of the transmission device 1 in a mold with a large in-mold rotation structure provided by an embodiment of the present invention. Figure 2 This diagram illustrates the structure of the rotating device 2 in a mold in-mold large rotating structure provided by an embodiment of the present invention. Figure 3 This illustration shows a perspective view of the rotating device 2 in a mold in-mold large rotating structure provided by an embodiment of the present invention.
[0036] like Figures 1 to 3 As shown, the technical solution adopted in this application is a large-scale in-mold rotation structure, characterized by including a transmission device 1 and a rotation device 2. The transmission device 1 includes a drive assembly 10 and a first drive wheel 11, used to drive the first drive wheel 11 to rotate via the drive assembly 10. The rotation device 2 includes a first rotation assembly 3 and a second rotation assembly 4. The first rotation assembly 3 rotates along the axial direction (…). Figure 1 (As shown in the Z direction) is spaced apart from the first drive wheel 11 and is linked by the synchronous belt 17. The second rotary assembly 4 is correspondingly arranged with the first rotary assembly 3 and meshes with the first rotary assembly 3 for transmission, including a rotary bushing 40, which is used to indirectly drive the rotary bushing 40 to rotate through the first drive wheel 11.
[0037] The mold in-mold large rotation structure provided in this application uses a drive assembly 10 to drive the first drive wheel 11 as a power source, which in turn drives the rotary bushing 40 for transmission. By adding an indirect transmission structure of a first rotary assembly 3 and a second rotary assembly 4 between the first drive wheel 11 and the rotary bushing 40, the back force generated when the drive assembly 10 drives the rotary bushing 40 is eliminated, ensuring consistent rotational accuracy and product stability. Furthermore, the synchronous belt 17 transmission used between the first drive wheel 11 and the first rotary assembly 3, compared to gear transmission, typically reduces noise and vibration, provides a smoother operating experience, ensures high efficiency and stability of power transmission, and simplifies maintenance and component replacement, reducing maintenance costs.
[0038] In some embodiments, reference Figures 1 to 3The first rotating assembly 3 also includes a second driving wheel 30, a third driving wheel 31, and a gear central shaft 32. The gear central shaft 32 passes sequentially through the second driving wheel 30 and the third driving wheel 31. The second driving wheel 30 is correspondingly arranged with the first driving wheel 11, and the synchronous belt 17 is wound between the first driving wheel and the second driving wheel. The outer side of the third driving wheel 31 is provided with a first tooth surface.
[0039] For example, the design of the gear central shaft 32 makes the power transmission more concentrated, which helps to optimize the spatial layout inside the mold. By passing the gear central shaft 32 through the second driving wheel 30 and the third driving wheel 31 in sequence, different transmission ratios can be adjusted to meet the needs of different mold operations, and additional power transmission paths can be provided to enhance the driving capability of the entire system.
[0040] In some embodiments, reference Figures 1 to 3 The second drive wheel 30 and the third drive wheel 31 are connected and fixed by bolts 33.
[0041] In some embodiments, reference Figures 1 to 3 The second rotating assembly 4 also includes a driven wheel 41 and a rotating bushing 42. A rotating bushing 40 is sequentially installed on the driven wheel 41 and the rotating bushing 42. The driven wheel 41 and the third driving wheel 31 are axially corresponding to each other, and the outer side is provided with a second tooth surface corresponding to the first tooth surface, for meshing and transmission with the third driving wheel 31.
[0042] For example, the driven wheel 41 and the third driving wheel 31 are axially corresponding, and the outer second tooth surface corresponds to the first tooth surface, ensuring precise meshing transmission, improving transmission efficiency, and the precision of meshing transmission helps to improve the accuracy of mold operation, which is especially important for molds that require high-precision machining. The design of the rotary bushing 42 allows for quick replacement or repair, simplifying the maintenance process.
[0043] In some embodiments, reference Figures 1 to 3 A flat needle roller bearing 43 is provided between the driven wheel 41 and the rotating bushing 42.
[0044] For example, the 43 flat needle roller bearing can provide high-precision positioning and motion control, and typically has a low coefficient of friction, which helps to reduce energy loss during power transmission.
[0045] In some embodiments, reference Figures 1 to 3 The drive assembly 10 includes a motor 12 and a reducer 13. The drive end of the reducer 13 is rotatably connected to the first drive wheel 11, and the tail end of the reducer 13 is connected to the drive end of the motor 12.
[0046] For example, the reducer 13 can increase the torque output of the motor 12, and through the reducer 13, the high speed of the motor 12 can be reduced to a lower speed suitable for mold operation, thereby achieving more precise control.
[0047] In some embodiments, reference Figures 1 to 3 The first rotating assembly 3 also includes a lower bearing cover 34 and a bearing 35. The lower bearing cover 34 is located on the side of the second driving wheel 30 away from the third driving wheel 31 and is connected to the gear central shaft 32. The bearing 35 is located at the connection between the lower bearing cover 34 and the gear central shaft 32.
[0048] For example, the lower bearing cover 34 provides an additional support point for the second drive wheel 30, enhancing the stability of the entire assembly. The bearing 35 can withstand and distribute the load of the gear central shaft 32, reducing the stress acting directly on the gear, and can reduce the vibration and noise generated when the gear rotates, providing smoother operation.
[0049] In some embodiments, reference Figures 1 to 3 The second rotating assembly 4 also includes a needle roller bearing cage 44 and a radial needle roller bearing 45. The needle roller bearing cage 44 is located on the side of the driven wheel 41 away from the rotating bushing 42 and is connected to the rotating shaft sleeve 40. The radial needle roller bearings 45 are respectively located at the connection between the rotating shaft sleeve 40 and the needle roller bearing cage 44 and the rotating bushing 42.
[0050] For example, the design of the radial needle roller bearing 45 helps reduce friction between the rolling elements and the bearing housing 35, improving transmission efficiency. The needle roller bearing cage 44 can evenly distribute the needle rollers, reducing local stress concentration and thus extending the service life of the bearing 35.
[0051] In some embodiments, reference Figures 1 to 3 An outer synchronous wheel cover plate 14 is provided on the side of the first driving wheel 11 away from the reducer 13.
[0052] For example, by providing an outer synchronous pulley cover plate 14 on the side of the outer synchronous pulley away from the reducer 13, additional protection and support can be provided for the large rotation structure inside the mold, ensuring the stable operation and long-term reliability of the transmission system.
[0053] In some embodiments, reference Figures 1 to 3 The drive assembly 10 also includes a first fixing block 15 and a second fixing block 16. The reducer 13 is fixed to the first fixing block 15, and the motor 12 is fixed to the second fixing block 16.
[0054] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
Claims
1. A large-scale rotating structure within a mold, characterized in that, include: The transmission device includes a drive assembly and a first drive wheel, used to drive the first drive wheel to rotate via the drive assembly; The rotary device includes a first rotary component and a second rotary component; the first rotary component is axially spaced from the first drive wheel and is linked by a synchronous belt; the second rotary component is correspondingly arranged with the first rotary component and meshes with the first rotary component for transmission, and includes a rotary bushing for indirectly driving the rotary bushing to rotate through the first drive wheel.
2. The mold in-mold large rotation structure according to claim 1, characterized in that, The first rotary assembly further includes a second drive wheel, a third drive wheel, and a gear central shaft; the gear central shaft passes through the second drive wheel and the third drive wheel in sequence; the second drive wheel is correspondingly arranged with the first drive wheel, and the synchronous belt is wound between the first drive wheel and the second drive wheel; the outer side of the third drive wheel is provided with a first tooth surface.
3. The mold in-mold large rotation structure according to claim 2, characterized in that, The second and third drive wheels are fixed together by bolts.
4. The mold in-mold large rotation structure according to claim 2, characterized in that, The second rotary assembly further includes a driven wheel and a rotary bushing; the rotary bushing passes through the driven wheel and the rotary bushing in sequence; the driven wheel and the third driving wheel are arranged correspondingly along the axial direction, and the outer side is provided with a second tooth surface corresponding to the first tooth surface, for meshing and transmission with the third driving wheel.
5. The mold in-mold large rotation structure according to claim 4, characterized in that, A flat needle roller bearing is provided between the driven wheel and the slewing bushing.
6. The mold in-mold large rotation structure according to claim 1, characterized in that, The drive assembly includes a motor and a reducer; the drive end of the reducer is rotatably connected to the first drive wheel, and the tail end of the reducer is connected to the drive end of the motor.
7. The mold in-mold large rotation structure according to claim 2, characterized in that, The first rotating assembly further includes a lower bearing cover and a bearing; the lower bearing cover is located on the side of the second driving wheel away from the third driving wheel and is connected to the gear central shaft; the bearing is located at the connection between the lower bearing cover and the gear central shaft.
8. The mold in-mold large rotation structure according to claim 4, characterized in that, The second rotary assembly further includes a needle roller bearing cage and a radial needle roller bearing; the needle roller bearing cage is located on the side of the driven wheel away from the rotary bushing and is connected to the rotary bushing; the radial needle roller bearings are respectively located at the connection between the rotary bushing and the needle roller bearing cage and the rotary bushing.
9. The mold in-mold large rotation structure according to claim 6, characterized in that, An outer synchronous wheel cover plate is provided on the side of the first driving wheel away from the reducer.
10. The mold in-mold large rotation structure according to claim 6, characterized in that, The drive assembly further includes a first fixing block and a second fixing block; the reducer is fixed to the first fixing block, and the motor is fixed to the second fixing block.