Rotor core press-fitting auxiliary tool

Abstract

The utility model discloses a kind of rotor core press-fitting auxiliary tool, including base, the through installation hole for placing motor shaft is opened in the base, the base end face on the both sides of installation hole is movably inserted with multiple positioning pins, locking member is set on the base for fixing the positioning pin. The present application is installed on positioning pin by setting auxiliary tool, then press-fitting motor shaft again, multiple rotor cores can be realized one-time press-fitting, relative to traditional one by one press-fitting rotor core on motor shaft, greatly improve press-fitting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, specifically to an auxiliary tooling for pressing rotor cores. Background Technology

[0002] During motor assembly, the rotor core needs to be pressed onto the motor shaft. In existing technology, the motor shaft is usually fixed below first, and then multiple rotor cores, as well as the end plates and pressure rings on both sides of the cores, are pressed onto the motor shaft one by one. This pressing method results in relatively low efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application provides an auxiliary tooling for press-fitting rotor cores, including a base with a through mounting hole for placing a motor shaft. Multiple positioning pins are movably inserted into the end faces of the base on both sides of the mounting hole, and a locking component is provided on the base to fix the positioning pins.

[0004] Furthermore, a support boss is provided inside the mounting hole.

[0005] Furthermore, through positioning holes are provided on both sides of the mounting hole, including two positioning holes arranged opposite to each other, and the positioning pin is inserted into the positioning hole.

[0006] Furthermore, the locking element is configured as a locking screw, and the base has multiple threaded holes, through which the locking screw fixes the positioning pin.

[0007] Furthermore, a locking plane is formed on the side of the base near the positioning pin, and the threaded hole is opened along the locking plane.

[0008] Furthermore, the base is constructed as a cylindrical structure with a diameter larger than that of the rotor core.

[0009] The advantages of this application are: the provided rotor core pressing auxiliary tooling has a simple structure, and by setting a base and positioning pins, multiple rotor cores can be pressed at one time, which greatly improves the pressing efficiency compared to the traditional method of pressing rotor cores one by one onto the motor shaft. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of one embodiment of the rotor core pressing auxiliary tooling of this application; Figure 2 for Figure 1 Another perspective structural diagram; Figure 3 for Figure 1 Schematic diagram for press-fitting the rotor core to the motor shaft; Figure 4for Figure 3 Schematic diagram of a partial structure.

[0011] The markings in the diagram are: 10, base; 101, mounting hole; 102, support boss; 103, positioning hole; 11, positioning pin; 12, locking screw; 13, motor shaft; 14, rotor core; 15, pressure plate; 16, pressure ring. Detailed Implementation

[0012] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0013] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0014] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0015] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0016] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] See Figures 1-2 This embodiment provides an auxiliary tooling for pressing rotor cores, including a cylindrical base 10. A through mounting hole 101 is provided on the base 10 along its axial direction to accommodate one end of the motor shaft. Two sets of through positioning holes 103 are also provided on the end face of the base 10. The two sets of positioning holes 103 are parallel and opposite to each other. A positioning pin 11 is inserted into the positioning hole 103. The length of the positioning pin 11 is longer than the height of the base and is locked by a locking member. This allows the length of the positioning pin 11 extending out of the base to be adjusted, thereby satisfying the pressing of different numbers of rotor cores.

[0019] Specifically, the locking element is constructed as a locking screw 12, and a locking plane 104 is formed on the side wall of the base 10. The locking plane 104 is located near the positioning hole. Multiple threaded holes (not shown in the figure) are opened at intervals on each locking plane 104 and are connected to the positioning hole. The locking screw 12 is screwed into the threaded hole to fix the positioning pin.

[0020] More specifically, the end of the locking screw 12 can be designed as a flat head structure, and the spaced arrangement of multiple threaded holes allows the locking screw 12 to be locked at different positions along the axial direction of the locating pin, enhancing the flexibility of fixing. In addition, the machining of the locking plane 104 ensures that the locking screw 12 has a vertical force-bearing surface when screwed in, effectively preventing problems such as stripping of the screw or insufficient locking force caused by the screw tilting.

[0021] See Figures 3-4 During the press-fitting process, it includes not only the rotor core 14, but also two pressure plates 15 at both ends of the rotor core and a pressure ring 16. The diameter of the pressure ring 16 is relatively small. Therefore, a support boss 102 is provided in the mounting hole 101 near the end face. The support boss 102 and the mounting hole together form a support groove to support the pressure ring 16. The pressure plates 15 and the rotor core 14 have cooling holes, which facilitates the passage of the positioning pin.

[0022] During assembly, the locating pin can pass through the cooling holes of the pressure plate and the iron core to achieve circumferential pre-positioning. After the pressure ring 16 is embedded in the support groove, it can ensure that it will not shift when subjected to axial pressure, thereby ensuring the coaxiality and press-fitting stability of the entire rotor assembly.

[0023] Before pressing, adjust the extension length of the positioning pins according to the number of rotor cores. In this embodiment, there are four sets of rotor cores 14, including two pressure plates and a pressure ring at both ends. After adjusting the length, place the base vertically and place the pressure ring 16 in the support groove formed by the support boss and the mounting hole. Then, place the bottom pressure plate, the four sets of rotor cores and the top pressure plate in sequence through the positioning pins. After placing them, press the motor shaft 13 from top to bottom to achieve successful pressing in one go and improve pressing efficiency.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary tooling for pressing rotor cores, characterized in that: The device includes a base with a through mounting hole for placing a motor shaft. Multiple positioning pins are movably inserted into the end faces of the base on both sides of the mounting hole, and a locking component is provided on the base to fix the positioning pins.

2. The rotor core pressing auxiliary tooling according to claim 1, characterized in that: A support boss is provided inside the mounting hole.

3. The rotor core pressing auxiliary tooling according to claim 1, characterized in that: Two positioning holes are provided on both sides of the mounting hole, and the positioning pin is inserted into the positioning hole.

4. The rotor core pressing auxiliary tooling according to claim 3, characterized in that: The locking element is configured as a locking screw, and the base has multiple threaded holes, through which the locking screw fixes the positioning pin.

5. The rotor core pressing auxiliary tooling according to claim 4, characterized in that: A locking plane is formed on the side of the base near the locating pin, and the threaded hole is opened along the locking plane.

6. The rotor core pressing auxiliary tooling according to claim 1, characterized in that: The base is constructed as a cylindrical structure with a diameter larger than that of the rotor core.

Images