A frameless motor stator mounting device and method of use thereof

Abstract

The present application relates to frameless motor stator mounting technical field, specifically, relate to a kind of frameless motor stator mounting device and its using method, including lead screw, lead screw nut, lead screw nut sheath, fixed frame, guide frame, positioning pin, crank and guide rod;One end of lead screw nut is fixedly arranged crank, the other end is rotatably connected fixed frame, lead screw nut is installed in lead screw, and lead screw nut is located between crank and fixed frame, the outside of lead screw nut is installed lead screw nut sheath, at least three guide frames are arranged around the circumference of lead screw on lead screw nut sheath, positioning pin is fixedly arranged on each guide frame, all positioning pins are arranged around the circumference of lead screw, and positioning pin is arranged with lead screw, guide rod is used to provide guide when stator is accurately dropped into circular groove;It can be suitable for the installation of various models (including large frameless motor and small frameless motor) frameless motor stator, and stator can be stably and accurately installed into frameless motor housing.

Description

Technical Field

[0001] This invention relates to the field of frameless motor stator mounting technology, and more specifically, to a frameless motor stator mounting device and its usage method. Background Technology

[0002] Frameless motors, also known as frameless torque motors, are used in robotics and semiconductor industries, and are also found in some turntable mechanisms. Frameless motors lack a housing, thus providing more installation space, and the hollow rotor structure facilitates internal wiring or other structural components. The stator and rotor are two independent structures; the stator is mounted on the housing, and the rotor is mounted on the shaft. During assembly, the rotor is typically assembled first, followed by the stator. Due to the strong magnetism between the stator and rotor, without magnetic isolation and positioning measures during assembly, the stator can be directly attracted to the housing by the magnetic force, making position adjustment impossible and compromising the stable air gap between the stator and rotor. In severe cases, this can lead to rotor-stator contact; furthermore, the strong magnetic force can easily damage the motor. This application provides a stator mounting device and method to improve stator mounting accuracy and ensure even and stable stator assembly within the housing, preventing damage to the motor.

[0003] Disadvantages of existing technology:

[0004] 1. In the existing technology, a layer of polyurethane film is placed between the stator and the rotor for magnetic isolation to ensure the gap between the stator and the rotor. However, due to the limited magnetic isolation capability, this method is only applicable to small frameless motors.

[0005] 2. In the existing technology, for large motors, the stator is usually lifted by a hoisting device, and the motor mounting holes are aligned with the housing mounting holes by bolts. The stator is then slowly installed into the housing. This method cannot assemble the stator smoothly and evenly, and is prone to vibration. Summary of the Invention

[0006] The purpose of this invention is to provide a frameless motor stator mounting device, which is applicable to the installation of stators of various models (including large frameless motors and small frameless motors), and can stator be smoothly and accurately installed into the frameless motor housing.

[0007] Another objective of this invention is to provide a method for using a frameless motor stator mounting device, which is capable of mounting stators of various models of frameless motors and can stator be smoothly and accurately installed into the frameless motor housing.

[0008] The technical solution of this invention is implemented as follows:

[0009] A frameless motor stator mounting device is used to precisely install the stator into the frameless motor housing. The front side of the frameless motor housing is provided with a circular groove for installing the stator. The device includes a lead screw, a lead screw nut, a lead screw nut sleeve, a fixing frame, a guide frame, a positioning pin, a rocker handle, and a guide rod.

[0010] One end of the lead screw nut is fixedly provided with a crank handle, and the other end is rotatably connected to a fixed frame. The lead screw nut is installed on the lead screw and is located between the crank handle and the fixed frame. The lead screw nut sleeve is installed on the outside of the lead screw nut. At least three guide frames are arranged in a circular array around the lead screw on the lead screw sleeve. Each guide frame is fixedly provided with a positioning pin. All the positioning pins are arranged in a circular array around the lead screw and are in the same direction as the lead screw.

[0011] The stator has a plurality of first positioning holes sequentially formed along its central axis, and the bottom surface of the circular groove has a plurality of second positioning holes sequentially formed around its central axis. The first positioning holes and the second positioning holes are arranged in a one-to-one correspondence and are aligned by inserting the guide rod. The guide rod is used to provide guidance when the stator falls accurately into the circular groove.

[0012] Furthermore, the fixing frame includes a bearing seat and a fixing rod, the bearing seat is rotatably connected to the lead screw via a bearing, and at least one fixing rod is provided on the outer side of the bearing seat.

[0013] Furthermore, it also includes a limiting block, which is provided on the side of each guide frame away from the crank handle.

[0014] Furthermore, four fixing rods are arranged around the lead screw on the outer side of the bearing housing, and the four fixing rods are distributed in an X-shape.

[0015] Furthermore, three guide frames are arranged in a circular array around the lead screw on the lead screw nut sleeve.

[0016] Furthermore, the lead screw nut spacer is connected to the lead screw nut by bolts.

[0017] Furthermore, the guide frame is disposed on the outside of the lead screw nut spacer, and the guide frame is connected to the lead screw nut spacer by bolts.

[0018] A method of using the frameless motor stator mounting device is also provided, comprising:

[0019] S1: The frameless motor housing has the circular groove on the front side, the fixing bracket is fixed to the back side of the frameless motor housing, and the lead screw is coaxial with the central axis of the circular groove.

[0020] S2: Multiple pin holes are sequentially opened around the central axis of the circular groove on the frameless motor housing. Each pin hole corresponds to a positioning pin. The initial position of the lead screw nut is close to one end of the crank handle. The crank handle is turned to move the lead screw nut and the positioning pin toward the frameless motor housing, and the multiple positioning pins are inserted into the multiple pin holes and continue to extend a certain distance to support the stator. The end face of all the positioning pins away from the crank handle is always on the same plane to ensure the levelness of the stator during installation.

[0021] S3: The stator is placed stably on the multiple positioning pins in the installation direction. At least three first positioning holes are sequentially opened on the stator around its central axis. At least three second positioning holes are sequentially opened on the bottom surface of the circular groove around its central axis. The first positioning holes and the second positioning holes are set one-to-one and aligned by inserting the guide rod to achieve horizontal positioning of the stator. After the guide rod is inserted, its length direction is the same as that of the lead screw.

[0022] S4: Slowly crank the handle to return the lead screw nut to its initial position. As the positioning pin slowly exits the pin hole, the stator slowly falls into the circular groove along the guide rod and is locked in the circular groove by bolts, thus achieving precise installation of the stator.

[0023] Furthermore, in step S1, the fixing frame is connected to the frameless motor housing by bolts.

[0024] Furthermore, in step S4, during the entire process of the stator slowly falling into the circular groove along the guide rod, it should be checked whether the stator is completely attached to all the locating pins. If not, the stator position should be readjusted so that the stator is completely attached to all the locating pins.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] The frameless motor stator mounting device of this application can install stators of various models of frameless motors. During stator installation, the fixing rod is first fixed to the back side of the frameless motor housing, and the lead screw and the central axis of the circular slot are coaxial. Then, the crank handle is turned to move the lead screw nut and locating pins from their initial position toward the frameless motor housing, causing multiple locating pins to be inserted one-to-one into multiple pin holes and extend a certain distance to support the stator. The end faces of all locating pins away from the crank handle are always on the same plane, that is, the end faces of all locating pins used to support the stator are on the same plane to ensure... To ensure the stator is level during installation, the stator is placed smoothly on multiple locating pins according to the installation direction. A guide rod is then inserted into the first and second locating holes for alignment, achieving horizontal positioning of the stator. The crank handle is slowly turned to return the lead screw nut to its initial position. As the locating pins slowly exit their holes, the stator slowly falls into the circular groove along the guide rod. Finally, the stator is secured in the groove with bolts, achieving precise installation. This installation method allows the stator to be smoothly and accurately installed into the frameless motor housing without damaging the motor, ensuring safety and reliability. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention 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.

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the frameless motor stator mounting device of the present invention (excluding guide rods);

[0029] Figure 2 This is a schematic cross-sectional view of the lead screw of the present invention;

[0030] Figure 3 This is a schematic diagram of the frameless motor stator mounting device of the present invention fixed to the back side of the frameless motor housing;

[0031] Figure 4 This is a schematic diagram of the structure of the stator and guide rod after installation of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the stator of the present invention falling along the guide rod into the circular groove of the frameless motor housing.

[0033] In the diagram: (Explanation of reference numerals)

[0034] 1-Lead screw; 2-Lead screw nut; 3-Lead screw nut sleeve;

[0035] 4-Fixed bracket; 401-Bearing housing; 402-Fixed rod;

[0036] 5-Guide frame; 6-Positioning pin; 7-Handle; 8-Limit block;

[0037] 9-Bearing; 10-Guide rod;

[0038] 11-Stator; 12-Frameless motor housing; 121-Circular slot. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of this invention, it should be noted that 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 product of this invention is in use. They are only for the convenience of describing this invention 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 invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0044] In the description of this invention, 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 invention based on the specific circumstances.

[0045] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0046] Reference Figures 1-5 The present invention provides the following embodiments.

[0047] Example 1

[0048] This embodiment provides a technical solution, as shown below:

[0049] A frameless motor includes a stator 11 and a frameless motor housing 12. At least three first positioning holes are formed on the stator 11 around its central axis. These first positioning holes are located on the same circle, which is coaxial with the central axis of the stator 11. The first positioning holes can be evenly or unequally spaced on this circle. In this embodiment, it is preferred that all the first positioning holes are arranged in a circumferential array around the central axis of the stator 11 (i.e., all the first positioning holes are evenly spaced on the same circle). A circular groove 121 for mounting the stator 11 is provided on the front side of the frameless motor housing 12, and the stator 11 is mounted in the circular groove 121. At least three second positioning holes are formed on the bottom surface of the circular groove 121 around its central axis. These second positioning holes are located on the same circle, which is coaxial with the central axis of the circular groove 121. The number of first and second positioning holes is the same, and they are arranged in a one-to-one correspondence; that is, the diameter of the circle containing the first positioning holes is the same as the diameter of the circle containing the second positioning holes.

[0050] Preferably, the number of first positioning holes is set to three and arranged in a circular array around the central axis of the stator 11, and the number of second positioning holes is set to three and arranged in a circular array around the central axis of the circular groove 121. The three first positioning holes are defined as first positioning hole A, first positioning hole B and first positioning hole C, respectively, and the three second positioning holes are defined as second positioning hole A, second positioning hole B and second positioning hole C, respectively. That is, first positioning hole A and second positioning hole A are coaxial, first positioning hole B and second positioning hole B are coaxial, and first positioning hole C and second positioning hole C are coaxial.

[0051] Preferably, all three second positioning holes are configured as slots, meaning that none of the three second positioning holes are through holes, so as to facilitate the insertion of the guide rod 10.

[0052] In addition, multiple pin holes are provided on the bottom surface of the circular groove 121. The number of pin holes is the same as the number of positioning pins 6 and they are set one-to-one.

[0053] Example 2

[0054] This embodiment provides a technical solution, as shown below:

[0055] A frameless motor stator mounting device is used to precisely install the stator 11 of the frameless motor in Embodiment 1 into the frameless motor housing 12. It includes a lead screw 1, a lead screw nut 2, a lead screw nut sleeve 3, a fixing bracket 4, a guide bracket 5, a positioning pin 6, a rocker arm 7, and a guide rod 10.

[0056] One end of the lead screw nut 2 is fixedly provided with a crank handle 7, and the other end is rotatably connected to a fixing frame 4. The lead screw nut 2 is installed on the lead screw 1, and the lead screw nut 2 is located between the crank handle 7 and the fixing frame 4. The lead screw nut sleeve 3 is installed on the outside of the lead screw nut 2. The lead screw nut 2 and the lead screw nut sleeve 3 are connected by bolts. At least three guide frames 5 are arranged in a circular array around the lead screw 1 on the lead screw sleeve 3. Each guide frame 5 is fixedly provided with a positioning pin 6. At the same time, all the positioning pins 6 are arranged in a circular array around the lead screw 1, and the positioning pins 6 are arranged in the same direction as the lead screw 1. The fixing frame 4 rotates around the lead screw 1. When the lead screw 1 is rotated by the crank handle 7, the lead screw nut 2, the lead screw nut sleeve 3, the guide frames 5 and the positioning pins 6 move up and down along the lead screw 1 together.

[0057] Preferably, three guide frames 5 are arranged in a circumferential array around the outer side of the lead screw 1, so that the requirement can be met with the minimum number of guide frames 5. Each guide frame 5 is provided with a positioning pin 6, so the number of positioning pins 6 is also three.

[0058] The fixing frame 4 includes a bearing seat 401 and a fixing rod 402. The bearing seat 401 has a groove inside, and a bearing 9 is installed inside the groove. The bearing seat 401 is rotatably connected to the lead screw 1 through the bearing 9. At least one fixing rod 402 is provided on the outer side of the bearing seat 401. The fixing rod 402 is used to fix it to the back side of the frameless motor housing 12, thereby fixing the device to the back side of the frameless motor housing 12.

[0059] In this embodiment, four fixing rods 402 are arranged around the lead screw 1 on the outer side of the bearing seat 401, and the four fixing rods 402 are distributed in an X shape. The four fixing rods 402 are respectively connected and fixed to the back side of the frameless motor housing 12 by bolts. This not only makes the connection more secure, but also makes the disassembly and assembly more convenient.

[0060] In Embodiment 1, the three first positioning holes are defined as first positioning hole A, first positioning hole B, and first positioning hole C, respectively, and the three second positioning holes are defined as second positioning hole A, second positioning hole B, and second positioning hole C, respectively. That is, first positioning hole A and second positioning hole A are coaxially arranged, first positioning hole B and second positioning hole B are coaxially arranged, and first positioning hole C and second positioning hole C are coaxially arranged. In this embodiment, the guide rod 10 is a straight rod, and the number of guide rods 10 is also set to three, namely guide rod 10A, guide rod 10B, and guide rod 10C. Guide rod 10A is used to vertically insert into first positioning hole A and second positioning hole A, guide rod 10B is used to vertically insert into first positioning hole B and second positioning hole B, and guide rod 10C is used to vertically insert into first positioning hole C and second positioning hole C. After the three guide rods 10 are inserted accordingly, the stator 11 can be horizontally positioned so that it can fall smoothly and accurately into the circular groove 121 of the frameless motor housing 12 along the three guide rods 10.

[0061] The frameless motor stator mounting device also includes a limiting block 8, which is provided on the side of each guide frame 5 away from the rocker handle 7.

[0062] Example 3

[0063] This embodiment provides a method for using the frameless motor stator mounting device described in Embodiment 2, used to accurately and stably install the stator 11 from Embodiment 1 into the circular groove 121 of the frameless motor housing 12, which includes the following steps:

[0064] S1: Since the frameless motor housing 12 has the circular groove 121 on its front side, the fixing rod 402 is fixed to the back side of the frameless motor housing 12, and the lead screw 1 and the central axis of the circular groove 121 are coaxial. Specifically, the center of the circular groove 121 is a through hole to facilitate the installation of the bearing seat 401. After the fixing rod 402 is fixed to the frameless motor housing 12, the bearing seat 401 can be placed in the through hole without interference. There are four fixing rods 402, which are arranged in an X-shape and fixed to the back side of the frameless motor housing 12 by bolts.

[0065] S2: Multiple pin holes are sequentially formed on the frameless motor housing 12 around the central axis of the circular groove 121. Each pin hole corresponds to a positioning pin 6. The initial position of the lead screw nut 2 is set close to one end of the crank handle 7. The crank handle 7 is cranked to move the lead screw nut 2 and the positioning pin 6 toward the frameless motor housing 12, and the multiple positioning pins 6 are inserted into the multiple pin holes and continue to extend a certain distance to support the stator 11. The positioning pins 6 extend from the back side of the frameless motor housing 12 to its front side. Since all the positioning pins 6 are arranged in a circumferential array around the lead screw 1, the end face of all the positioning pins 6 away from the crank handle 7 is always on the same plane to ensure the levelness of the stator 11 during installation. It should be noted that the lead screw nut 2, the guide bracket 5 and the positioning pins 6 move toward the frameless motor housing 12 until the limit block 8 stops moving against the frameless motor housing 12. At this time, the positioning pins 6 are just inserted into the pin holes and extend a certain distance to the front side of the frameless motor housing 12.

[0066] S3: Place the frameless motor housing 12 horizontally with its front side facing upwards. Place the stator 11 horizontally and stably on the multiple positioning pins 6 according to the installation direction. Sequentially open at least three first positioning holes around the central axis on the stator 11, and sequentially open at least three second positioning holes around the central axis on the bottom surface of the circular groove 121. The first positioning holes and second positioning holes are set one-to-one and aligned by inserting the guide rods 10 to achieve horizontal positioning of the stator 11. After insertion, the length direction of the guide rods 10 is in the same direction as the lead screw. Specifically, vertically insert the guide rods 10A into the first positioning hole A and the second positioning hole A for alignment, vertically insert the guide rods 10B into the first positioning hole B and the second positioning hole B for alignment, and vertically insert the guide rods 10C into the first positioning hole C and the second positioning hole C for alignment. After the three guide rods 10 are inserted and aligned, the horizontality of the stator 11 can be guaranteed, and the stator 11 can fall vertically into the circular groove 121 along the three guide rods 10. Since the outer circumferential surface of the stator 11 of the frameless motor is a precision machined surface, the machining error (fit tolerance) of the frameless motor housing 12 is ensured during machining, thereby ensuring the installation accuracy of the frameless motor stator 11.

[0067] S4: Slowly crank the handle 7 to return the lead screw nut 2 to its initial position. Simultaneously, all locating pins 6 slowly withdraw from their holes. During this process, the stator 11 slowly and smoothly falls into the circular groove 121 along the guide rod 10, and is then locked in the groove 121 with bolts, achieving precise installation of the stator 11. Throughout the process of the stator 11 slowly falling into the circular groove 121 along the guide rod 10, it should be checked whether the stator 11 is completely fitted onto all the locating pins 6. If not, the position of the stator 11 should be readjusted to ensure that it is completely fitted onto all the locating pins 6, thus ensuring the levelness of the stator 11 during installation.

[0068] The beneficial effects of the technical solution of the present invention are:

[0069] 1. High installation accuracy: Through error control during the processing and installation process, the frameless motor stator 11 is ensured to fall smoothly and evenly into the frameless motor housing 12 during installation, thus ensuring the installation accuracy of the frameless motor stator 11.

[0070] 2. High efficiency: The frameless motor stator mounting device has a simple overall structure, is easy to install and disassemble, and has low cost, which effectively improves the installation efficiency of the frameless motor stator 11.

[0071] 3. High safety: The stator 11 generates a strong magnetic force during assembly. This device ensures a stable air gap between the stator 11 and the rotor, preventing the rotor and stator 11 from adsorbing together, thus ensuring the safety of assembly and preventing damage to the frameless motor.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

[0073] Furthermore, those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the foregoing claims, any of the claimed embodiments can be used in any combination. The information disclosed in this background section is intended only to enhance the understanding of the general background of the invention and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0075] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A frameless motor stator mounting device for precisely mounting a stator (11) into a frameless motor housing (12), wherein the frameless motor housing (12) has a circular groove (121) on its front side for mounting the stator (11), characterized in that, It includes a lead screw (1), a lead screw nut (2), a lead screw nut sleeve (3), a fixing bracket (4), a guide bracket (5), a positioning pin (6), a crank handle (7), and a guide rod (10). One end of the lead screw nut (2) is fixedly provided with a crank handle (7), and the other end is rotatably connected to a fixed frame (4). The lead screw nut (2) is installed on the lead screw (1), and the lead screw nut (2) is located between the crank handle (7) and the fixed frame (4). The lead screw nut sleeve (3) is installed on the outside of the lead screw nut (2). At least three guide frames (5) are arranged in a circular array around the lead screw (1) on the lead screw nut sleeve (3). Each guide frame (5) is fixedly provided with a positioning pin (6). All the positioning pins (6) are arranged in a circular array around the lead screw (1), and the positioning pins (6) are arranged in the same direction as the lead screw (1). The stator (11) has a plurality of first positioning holes sequentially opened along its central axis, and the bottom surface of the circular groove (121) has a plurality of second positioning holes sequentially opened around its central axis. The first positioning holes and the second positioning holes are arranged in a one-to-one correspondence and are aligned by inserting the guide rod (10). The guide rod (10) is used to provide guidance when the stator (11) falls precisely into the circular groove (121). The fixing frame (4) includes a bearing seat (401) and a fixing rod (402). The bearing seat (401) is rotatably connected to the lead screw (1) through a bearing (9). At least one fixing rod (402) is provided on the outer side of the bearing seat (401). The fixing bracket (4) is fixed to the back side of the frameless motor housing (12). Multiple pin holes are sequentially opened on the frameless motor housing (12) around the central axis of the circular groove (121). The pin holes are corresponding to the positioning pins (6). Multiple positioning pins (6) are inserted into the multiple pin holes and continue to extend a certain distance to support the stator (11).

2. The frameless motor stator mounting device according to claim 1, characterized in that, It also includes a limiting block (8), which is provided on the side of each guide frame (5) away from the rocker arm (7).

3. The frameless motor stator mounting device according to claim 1, characterized in that, Four fixing rods (402) are arranged around the lead screw (1) on the outer side of the bearing housing (401), and the four fixing rods (402) are distributed in an X shape.

4. The frameless motor stator mounting device according to claim 1, characterized in that, Three guide frames (5) are arranged in a circular array around the lead screw (1) on the lead screw nut sleeve (3).

5. The frameless motor stator mounting device according to claim 1, characterized in that, The spacer sleeve of the lead screw nut (2) is connected to the lead screw nut (2) by bolts.

6. The frameless motor stator mounting device according to claim 1, characterized in that, The guide frame (5) is located on the outside of the spacer of the lead screw nut (2), and the guide frame (5) and the spacer of the lead screw nut (2) are connected by bolts.

7. A method of using the frameless motor stator mounting device according to any one of claims 1-6, characterized in that, include: S1: The frameless motor housing (12) has the circular groove (121) on the front side. The fixing bracket (4) is fixed to the back side of the frameless motor housing (12), and the lead screw (1) is coaxial with the central axis of the circular groove (121). S2: Multiple pin holes are sequentially opened on the frameless motor housing (12) around the central axis of the circular groove (121). The pin holes are set one-to-one with the positioning pins (6). The initial position of the lead screw nut (2) is set close to one end of the crank handle (7). The crank handle (7) is shaken to move the lead screw nut (2) and the positioning pins (6) toward the frameless motor housing (12), and the multiple positioning pins (6) are inserted into the multiple pin holes and continue to extend a certain distance to support the stator (11). The end face of all the positioning pins (6) away from the crank handle (7) is always on the same plane to ensure the levelness of the stator (11) during installation. S3: Place the stator (11) stably on the multiple positioning pins (6) according to the installation direction. At least three first positioning holes are opened in sequence around the central axis of the stator (11). At least three second positioning holes are opened in sequence around the central axis of the bottom surface of the circular groove (121). The first positioning holes and the second positioning holes are set one-to-one and aligned by inserting the guide rod (10) to achieve horizontal positioning of the stator (11). After the guide rod (10) is inserted, its length direction is the same as that of the lead screw (1). S4: Slowly rock the handle (7) to return the lead screw nut (2) to its initial position. As the positioning pin (6) slowly exits the pin hole, the stator (11) slowly falls into the circular groove (121) along the guide rod (10) and is locked in the circular groove (121) by bolts, so as to achieve precise installation of the stator (11).

8. The method of using the frameless motor stator mounting device according to claim 7, characterized in that, In step S1, the fixing frame (4) is connected to the frameless motor housing (12) by bolts.

9. The method of using the frameless motor stator mounting device according to claim 7, characterized in that, In step S4, during the entire process of the stator (11) slowly falling into the circular groove (121) along the guide rod (10), it should also be checked whether the stator (11) is completely attached to all the locating pins (6). If not, the position of the stator (11) should be readjusted so that the stator (11) is completely attached to all the locating pins (6).

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