A motor stator and rotor assembly device

Abstract

This invention discloses a device for assembling a motor stator and rotor, including a worktable with a support mounted on it. A clamping and fixing component for clamping and positioning the motor stator assembly is mounted on the support. Two parallel transport rails are provided on the worktable surface, supporting the gearbox housing edge of the motor rotor assembly and transporting the motor rotor assembly directly below the motor stator assembly. The motor rotor is positioned above the two transport rails, with its output end located between them. A first limiting component that engages with the bottom surface of the motor rotor output end for limiting its position, and a second limiting component that engages with the side surface of the motor rotor output end for limiting its position, are provided on the worktable surface. A linear motion drive component is connected to the clamping and fixing component. This device uses a single-sided fixed rotor shaft, enabling simple, efficient, and precise stator and rotor assembly. It is adaptable to different assembly modes and rotor shafts and housings of different shapes and sizes.

Description

Technical Field

[0001] This invention relates to the field of tooling technology for new energy vehicles, specifically to a device for assembling a motor stator and rotor. Background Technology

[0002] The electric drive system, a core component of new energy vehicles, is responsible for converting the direct current (DC) supplied by the battery into alternating current (AC) to drive the vehicle. The performance of the electric motor directly affects the power output, driving range, and overall performance of the new energy vehicle. Therefore, every detail in the motor manufacturing process is crucial, especially the assembly of the stator and rotor. In motor manufacturing, the stator and rotor are two key components. The stator, as the stationary part of the motor, generates a rotating magnetic field through electromagnetic induction; the rotor, as the rotating part, rotates under the influence of the magnetic field, converting electrical energy into mechanical energy. The precision of the stator and rotor assembly directly affects the motor's performance, air gap size, magnetic flux path, and energy conversion efficiency.

[0003] Currently available motor stator-rotor assembly devices generally consist of a stator clamping device, an upper ejector pin, and a lower ejector pin. The stator is fixed in place by the stator clamping device, and upper and lower cylinders drive the upper and lower ejector pins respectively, causing them to press against both ends of the rotor to position it. The rotor is then pushed into the stator by the upper and lower cylinders. However, this type of motor stator-rotor assembly device has the following drawbacks:

[0004] (1) Single assembly form: Because double pins are required to position the rotor, it is only suitable for the rotor shaft with no housing interference on both sides. For the case where there is housing interference at both ends of the rotor shaft, double pins cannot be used for positioning. When pins cannot be used on one side, the stability and accuracy of the rotor shaft will deviate. Or holes need to be opened in the housing for the pins to pass through, which increases the overall cost and affects the integrity and airtightness of the housing.

[0005] (2) Insufficient assembly accuracy: Although the existing stator and rotor assembly device can automatically complete the assembly process, in some cases, insufficient assembly accuracy will still occur because the upper and lower pins only abut and limit the rotor ends.

[0006] (3) Poor adaptability: With the rapid development of the new energy vehicle market and the increase in demand for personalized customization, the existing stator and rotor assembly technology is difficult to adapt to the changes in the size and shape of stator and rotor of different models, which limits the diversity and flexibility of new energy vehicles. Summary of the Invention

[0007] To address the problems existing in the background art, the present invention provides a motor stator and rotor assembly device, which has a simple structure and lower cost. It adopts a single-sided fixed rotor shaft, which can perform stator and rotor assembly simply, efficiently and accurately. It can be adapted to different assembly modes and rotor shafts and housings of different shapes and sizes.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] The present invention provides a device for assembling a motor stator and rotor, including a worktable, a transport track, a bracket, a clamping and fixing assembly, a linear movement drive assembly, a motor stator assembly, a motor rotor assembly, a first limiting assembly, and a second limiting assembly;

[0010] The motor stator assembly includes a motor stator and a motor housing assembled at one end of the motor stator; the motor rotor assembly includes a motor rotor and a gearbox housing assembled at the output end of the motor rotor.

[0011] A bracket is installed on the workbench, and a clamping and fixing component for clamping and positioning the outside of the motor housing is installed on the bracket.

[0012] The workbench has two parallel transport rails on its surface. These two transport rails support the end edge of the gearbox housing and transport the motor rotor assembly to the area directly below the motor stator assembly. The motor rotor is located above the two transport rails, and the output end of the motor rotor is located between the two transport rails. The workbench has a first limiting component and a second limiting component. The first limiting component cooperates with the bottom surface of the output end of the motor rotor to limit its movement, and the second limiting component cooperates with the side surface of the output end of the motor rotor to limit its movement.

[0013] The linear motion drive assembly is connected to the clamping and fixing assembly, driving the motor stator assembly in the clamping and fixing assembly to reciprocate in a direction toward or away from the motor rotor assembly.

[0014] Furthermore, the first limiting component includes a first cylinder and an ejector pin. The first cylinder is installed at the bottom end of the worktable, and the ejector pin is installed at the output end of the first cylinder. The first cylinder drives the end of the ejector pin to extend out and insert into the threaded hole on the bottom end face of the motor rotor output end.

[0015] During operation, the end of the first cylinder delivers the ejector pin and engages with the threaded hole on the bottom end face of the motor rotor output end. The ejector pin end is controlled to reach a predetermined position according to the process, thus restricting the Z-axis degree of freedom of the motor rotor output end (rotor shaft).

[0016] Furthermore, a limiting component is provided on the worktable, the limiting component is located between the two transport tracks, the limiting component has a limiting hole, and the end of the ejector pin passes through the limiting hole.

[0017] When the first cylinder delivers the ejector pin, it extends upward and passes through the limiting hole on the limiting member. The limiting member guides and limits the ejector pin, ensuring that the end of the ejector pin is smoothly aligned and inserted into the threaded hole on the bottom end face of the motor rotor output end.

[0018] Furthermore, the second limiting component includes a second cylinder and a locking rod. A locking groove is provided on the outer side of the output end of the motor rotor. The second cylinder is mounted on the table surface of the workbench. A locking rod is installed at the output end of the second cylinder. A locking end is formed at the end of the locking rod. The second cylinder drives the locking rod to extend and lock the locking end into the locking groove.

[0019] During operation, the second cylinder extends the clamping rod and clamps the clamping end into the clamping groove on the outer side of the motor rotor output end, clamping the rotor shaft and restricting its XY axis degrees of freedom.

[0020] Furthermore, the bottom end of the clamping groove extends downward to the bottom end face of the motor rotor output end, the upper end face of the limiting member is a planar structure, and the second cylinder drives the clamping end to extend and slide on the upper end face of the limiting member.

[0021] During the process of the second cylinder driving the clamping end of the clamping rod to extend and clamp into the clamping groove, the upper end surface of the limiting component plays a limiting and supporting role for the clamping end. The clamping end slides close to the upper end surface of the limiting component, making the extension process of the clamping rod more stable and ensuring that the clamping end is smoothly aligned and clamped into the clamping groove.

[0022] Furthermore, grooves are provided on the sides of the two transport tracks, and the second cylinder is located outside the two transport tracks. The second cylinder drives the clamping end of the clamping rod to pass through the groove and clamp into the clamping slot.

[0023] Due to the limited space between the two transport tracks, directly installing the second cylinder and the clamping rod between the two transport tracks would cause interference between the long clamping rod and the transport track. Therefore, in this invention, the second cylinder and the clamping rod are placed on the outside of the transport track, and a groove is opened on the side of the transport track. The clamping end of the second cylinder delivers the clamping end of the clamping rod, which passes through the groove on the side of the transport track and enters between the two transport tracks, and engages with the clamping groove on the outer side of the motor rotor output end.

[0024] Furthermore, multiple locking grooves are symmetrically formed on the outer surface of the motor rotor output end.

[0025] When placing the motor rotor assembly on two transport rails, considering its subsequent cooperation with the second limiting component, the placement of the motor rotor assembly is specially adjusted so that the locking groove on the outer side of the motor rotor output end is aligned with one of the transport rails. However, since the second limiting component is only set on the outer side of one of the transport rails, sometimes the second limiting component and the locking groove on the outer side of the motor rotor output end are exactly opposite to each other. Therefore, preferably, two locking grooves are symmetrically opened on the outer side of the motor rotor output end to avoid the above situation. Moreover, the overall cost is not high and it is easy to operate and implement.

[0026] In a specific embodiment, a second limiting component may be provided on the outer side of each of the two transport tracks. The second limiting component on the corresponding side may be selected according to the corresponding direction of the clamping groove on the outer side of the motor rotor output end.

[0027] Furthermore, the clamping and fixing assembly includes three gripper modules, namely a first gripper module, a second gripper module, and a third gripper module. The first gripper module is installed on the top of the bracket and is used to clamp and limit the end of the motor housing away from the motor stator. The second gripper module and the third gripper module are symmetrically arranged on the side of the bracket, and the second gripper module and the third gripper module can approach each other to clamp and limit the outer side of the motor housing.

[0028] During operation, the first gripper module, the second gripper module, and the third gripper module work together to clamp the motor housing from three directions, thus achieving a stable clamping and fixing of the motor stator assembly.

[0029] Furthermore, the linear motion drive assembly is fixedly installed on the top of the bracket and drivenly connected to the first gripper module. The second gripper module and the third gripper module are slidably installed on the side of the bracket. The linear motion drive assembly drives the first gripper module and the motor stator assembly to move, and drives the second gripper module and the third gripper module to slide on the side of the bracket.

[0030] Specifically, the second and third gripper modules are structures that combine cylinders and clamping components. The first gripper module does not have a cylinder; it is directly driven by the linear motion drive assembly, which saves one cylinder.

[0031] During operation, the motor stator assembly is first placed on two transport tracks, and then transported to the area directly below the clamping and fixing assembly. The first, second, and third gripper modules work together to clamp the motor housing from three directions. As the linear motion drive assembly moves the first gripper module upward, the clamped and fixed motor stator assembly, the second gripper module, and the third gripper module also move upward.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] In this invention, the assembly surface of the motor housing is planar, and the upper and lower end faces of the gearbox housing are also planar. Two transport tracks engage with the assembly surfaces of the motor housing and the gearbox housing, allowing the motor stator assembly and motor rotor assembly to be sequentially transported to specific positions for subsequent assembly. The clamping and fixing components, along with the linear motion drive component, clamp the outer side of the motor housing, moving the clamped and fixed motor stator assembly upwards. A first limiting component engages with the bottom end face of the motor rotor output to limit the rotor's Z-axis freedom. A second limiting component then engages with the motor... The rotor output end is fitted with a side clamp to limit the rotor shaft's XY axis degrees of freedom, achieving single-sided rotor shaft fixation. This ensures the stability and accuracy of the motor rotor during assembly, improves the coaxiality and perpendicularity of the stator and rotor assembly, thereby enhancing overall assembly precision. Moreover, it eliminates the need for opening holes in the housing, reducing production costs. Single-sided clamping reduces production costs and is adaptable to different production lines. It can accommodate different assembly modes and rotor shafts and housings of different shapes and sizes, providing a reliable stator and rotor assembly solution for various production lines. It has strong versatility and flexibility, meeting the needs of different fields. Attached Figure Description

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0035] Figure 1 This is a schematic diagram of the structure of the motor stator and rotor assembly device during operation in this invention;

[0036] Figure 2 This is a three-dimensional structural diagram of the motor stator and rotor assembly device during operation in this invention;

[0037] Figure 3 This is a schematic diagram of the structure of the first limiting component and the second limiting component on the worktable in this invention;

[0038] Figure 4 This is a partial structural diagram of the first and second limiting components in this invention when used in conjunction with the motor stator;

[0039] Figure 5 This is a schematic diagram of the structure of the motor stator in this invention;

[0040] Figure 6 This is a schematic diagram of the clamping and fixing component in this invention;

[0041] The specific reference numerals in the attached figures are as follows:

[0042] Workbench 1, transport track 2, groove 3, bracket 4, clamping and fixing assembly 5, first gripper module 6, second gripper module 7, third gripper module 8, linear motion drive assembly 9, motor stator assembly 10, motor stator 11, motor housing 12, motor rotor assembly 13, motor rotor 14, motor rotor non-output end 15, motor rotor output end 16, clamping groove 17, gearbox housing 18, first limiting assembly 19, first cylinder 20, ejector pin 21, limiting component 22, limiting hole 23, second limiting assembly 24, second cylinder 25, clamping rod 26, clamping end 27. Detailed Implementation

[0043] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] An embodiment of the present invention discloses a device for assembling a motor stator 11 and a rotor, such as... Figure 1 , Figure 2 and Figure 5 As shown, it includes a worktable 1, a transport track 2, a bracket 4, a clamping and fixing assembly 5, a linear motion drive assembly 9, a motor stator assembly 10, a motor rotor assembly 13, a first limiting assembly 19, and a second limiting assembly 24.

[0045] The motor stator assembly 10 includes a motor stator 11 and a motor housing 12 assembled at one end of the motor stator 11; the motor rotor assembly 13 includes a motor rotor 14 and a gearbox housing 18 assembled at the output end 16 of the motor rotor.

[0046] A bracket 4 is installed on the workbench 1, and a clamping and fixing component 5 for clamping and positioning the outside of the motor housing 12 is installed on the bracket 4.

[0047] The workbench 1 has two parallel transport rails 2 on its surface. The two transport rails 2 support the end edge of the gearbox housing 18 and transport the motor rotor assembly 13 to the area directly below the motor stator assembly 10. The motor rotor 14 is located above the two transport rails 2, and the motor rotor output end 16 is located between the two transport rails 2. The workbench 1 has a first limiting component 19 and a second limiting component 24 on its surface. The first limiting component 19 cooperates with the bottom end face of the motor rotor output end 16 to limit the movement, and the second limiting component 24 cooperates with the side face of the motor rotor output end 16 to limit the movement.

[0048] The linear motion drive assembly 9 is connected to the clamping and fixing assembly 5, which drives the motor stator assembly 10 in the clamping and fixing assembly 5 to reciprocate in the direction of approaching or moving away from the motor rotor assembly 13, so as to assemble the motor rotor 14 and the non-output end 15 of the motor rotor into the motor stator 11 and the motor housing 12 respectively.

[0049] The mounting surface of the motor housing 12 is planar, and the upper and lower end faces of the gearbox housing 18 are also planar. Through the cooperation of two transport tracks 2 with the mounting surfaces of the motor housing 12 and the end faces of the gearbox housing 18, the motor stator assembly 10 and the motor rotor assembly 13 can be sequentially transported to a specific position for subsequent assembly operations. The clamping and fixing assembly 5 and the linear motion drive assembly 9 clamp the outer side of the motor housing 12, moving the clamped and fixed motor stator assembly 10 upwards. The first limiting assembly 19, in cooperation with the bottom end face of the motor rotor output end 16, provides a limit, restricting the Z-axis freedom of the rotor shaft. The second limiting assembly... Positioning component 24 engages with the side of the motor rotor output end 16 to limit the rotor shaft's XY axis degrees of freedom, achieving single-sided rotor shaft fixation. This ensures the stability and accuracy of the motor rotor 14 during assembly, improves the coaxiality and perpendicularity of the stator and rotor assembly, thereby enhancing overall assembly precision. Furthermore, it eliminates the need for opening holes in the housing, reducing production costs. Single-sided clamping reduces production costs and is adaptable to different production lines. It can accommodate different assembly modes and rotor shafts and housings of different shapes and sizes, providing reliable stator and rotor assembly solutions for various production lines. It possesses strong versatility and flexibility, meeting the needs of different fields.

[0050] Among them, such as Figure 3-5 As shown, the first limiting component 19 includes a first cylinder 20 and an ejector pin 21. The first cylinder 20 is mounted on the bottom end of the worktable 1, and the ejector pin 21 is mounted on the output end of the first cylinder 20. The first cylinder 20 drives the end of the ejector pin 21 to extend and insert into the threaded hole on the bottom end face of the motor rotor output end 16. During operation, the first cylinder 20 delivers the end of the ejector pin 21 to engage with the threaded hole on the bottom end face of the motor rotor output end 16, and controls the end of the ejector pin 21 to reach a predetermined position according to the progress, thereby restricting the Z-axis degree of freedom of the motor rotor output end 16 (rotor shaft).

[0051] The workbench 1 is equipped with a limiting component 22, which is located between two transport tracks 2. The limiting component 22 has a limiting hole 23, through which the end of the ejector pin 21 passes. When the first cylinder 20 delivers the ejector pin 21 upward, the ejector pin 21 passes upward through the limiting hole 23 on the limiting component 22, which guides and limits the ejector pin 21, ensuring that the end of the ejector pin 21 is smoothly aligned and inserted into the threaded hole on the bottom end face of the motor rotor output end 16.

[0052] Among them, such as Figure 3-5As shown, the second limiting component 24 includes a second cylinder 25 and a locking rod 26. A locking groove 17 is provided on the outer surface of the motor rotor output end 16. The second cylinder 25 is mounted on the table surface of the workbench 1. The locking rod 26 is installed at the output end of the second cylinder 25, and a locking end 27 is formed at the end of the locking rod 26. The second cylinder 25 drives the locking rod 26 to extend and lock the locking end 27 into the locking groove 17. During operation, the second cylinder 25 delivers the locking rod 26 to extend and locks the locking end 27 into the locking groove 17 on the outer surface of the motor rotor output end 16, thereby locking the rotor shaft and restricting its XY axis degrees of freedom.

[0053] The bottom end of the clamping groove 17 extends downward to the bottom end face of the motor rotor output end 16. The upper end face of the limiting member 22 is a planar structure. The second cylinder 25 drives the clamping end 27 to extend and slide on the upper end face of the limiting member 22. During the process of the second cylinder 25 driving the clamping end 27 of the clamping rod 26 to extend and clamp into the clamping groove 17, the upper end face of the limiting member 22 plays a limiting and supporting role for the clamping end 27. The clamping end 27 slides close to the upper end face of the limiting member 22, making the extension process of the clamping rod 26 more stable and ensuring that the clamping end 27 is smoothly aligned and clamped into the clamping groove 17.

[0054] In this invention, grooves 3 are provided on the sides of the two transport tracks 2. The second cylinder 25 is located outside the two transport tracks 2. The second cylinder 25 drives the clamping end 27 of the clamping rod 26 to pass through the grooves 3 and engage with the clamping groove 17. Due to the limited space between the two transport tracks 2, directly installing the second cylinder 25 and the clamping rod 26 between the two transport tracks 2 would cause interference between the long clamping rod 26 and the transport track 2. Therefore, in this invention, the second cylinder 25 and the clamping rod 26 are located outside the transport tracks 2, and grooves 3 are provided on the sides of the transport tracks 2. The second cylinder 25 delivers the clamping end 27 of the clamping rod 26, which passes through the grooves 3 on the sides of the transport tracks 2 and enters between the two transport tracks 2, engaging with the clamping groove 17 on the outer side of the motor rotor output end 16.

[0055] Multiple locking grooves 17 are symmetrically formed on the outer surface of the motor rotor output end 16. When the motor rotor assembly 13 is placed on the two transport rails 2, the placement position of the motor rotor assembly 13 is specially adjusted to ensure that the locking grooves 17 on the outer surface of the motor rotor output end 16 are aligned with one of the transport rails 2, considering that it will cooperate with the second limiting component 24 laterally. However, since the second limiting component 24 is only set on the outer side of one of the transport rails 2, sometimes the second limiting component 24 and the locking grooves 17 on the outer surface of the motor rotor output end 16 are exactly opposite to each other. Therefore, preferably, two locking grooves 17 are symmetrically formed on the outer surface of the motor rotor output end 16 to avoid the above situation. Moreover, the overall cost is not high and it is easy to operate. In a specific embodiment, the second limiting component 24 can also be set on the outer side of the two transport rails 2 respectively, and the second limiting component 24 on the corresponding side can be selected according to the corresponding direction of the locking grooves 17 on the outer surface of the motor rotor output end 16.

[0056] Among them, such as Figure 1 , Figure 2 and Figure 6 As shown, the clamping and fixing assembly 5 includes three gripper modules: a first gripper module 6, a second gripper module 7, and a third gripper module 8. The first gripper module 6 is mounted on the top of the bracket 4 and is used to clamp and limit the end of the motor housing 12 away from the motor stator 11. The second gripper module 7 and the third gripper module 8 are symmetrically arranged on the side of the bracket 4, and can approach each other to clamp and limit the outer side of the motor housing 12. During operation, the first gripper module 6, the second gripper module 7, and the third gripper module 8 work together to clamp the motor housing 12 from three directions, achieving a stable clamping and fixing of the motor stator assembly 10.

[0057] The linear motion drive assembly 9 is fixedly mounted on the top of the bracket 4 and is drivenly connected to the first gripper module 6. The second gripper module 7 and the third gripper module 8 are slidably mounted on the side of the bracket 4. The linear motion drive assembly 9 drives the first gripper module 6 and the motor stator assembly 10 to move, and drives the second gripper module 7 and the third gripper module 8 to slide on the side of the bracket 4. Specifically, the second gripper module 7 and the third gripper module 8 are structures that combine a cylinder and a clamping element. The second gripper module 7 and the third gripper module 8 are respectively mounted on the adjusting block, and the adjusting block is slidably connected to the bracket 4. The first gripper module 6 does not contain a cylinder; it is directly driven by the linear motion drive assembly 9, which saves one cylinder. During operation, the motor stator assembly 10 is first placed on two transport rails 2. The motor stator assembly 10 is then transported to the area directly below the clamping and fixing assembly 5 via the transport rails 2. The first gripper module 6, the second gripper module 7, and the third gripper module 8 work together to clamp the motor housing 12 from three directions. As the linear motion drive assembly 9 moves the first gripper module 6 upward, the clamped and fixed motor stator assembly 10, the second gripper module 7, and the third gripper module 8 move upward accordingly.

[0058] The assembly process for stator and rotor is as follows:

[0059] 1. The motor stator 11 is pre-pressed and assembled onto the motor housing 12 to form the motor stator assembly 10;

[0060] 2. Assemble the motor rotor 14 with the gearbox housing 18 to form the motor rotor assembly 13;

[0061] 3. Place the assembly surface of the motor housing 12 on the two transport rails 2, with the motor stator 11 vertically downward. Transport the motor stator assembly 10 to the area directly below the clamping and fixing assembly 5 via the transport rails 2. The motor housing 12 is clamped from three directions by the cooperation of the first gripper module 6, the second gripper module 7, and the third gripper module 8. As the linear motion drive assembly 9 moves the first gripper module 6 upward, the clamped and fixed motor stator assembly 10 and the second and third gripper modules 7 and 8 move upward accordingly.

[0062] 4. Place the end of the gearbox housing 18 on the two transport rails 2, with the motor rotor 14 vertically upward and above the two transport rails 2, and the motor rotor output end 16 located between the two transport rails 2. The motor rotor assembly 13 is transported to the area directly below the motor stator assembly 10 via the transport rails 2.

[0063] 5. The clamping end 27 of the second cylinder 25 conveying clamping rod 26 extends out, passes through the groove 3 on the side of the transport track 2, enters between the two transport tracks 2, and engages with the clamping groove 17 on the outer side of the motor rotor output end 16, clamping the rotor shaft and restricting its XY axis degrees of freedom.

[0064] 6. The first cylinder 20 delivers the ejector pin 21 to extend upwards. The ejector pin 21 passes upwards through the limiting hole 23 on the limiting member 22. The end of the ejector pin 21 engages with the threaded hole on the bottom end face of the motor rotor output end 16. According to the process control, the end of the ejector pin 21 reaches the predetermined position, restricting the Z-axis degree of freedom of the rotor shaft.

[0065] 7. The linear motion drive assembly 9 drives the first gripper module 6 and the motor stator assembly 10 to move downwards, and the second gripper module 7 and the third gripper module 8 move downwards accordingly until the motor rotor 14 and the non-output end 15 of the motor rotor are respectively assembled into the motor stator 11 and the motor housing 12, and the motor stator and rotor are assembled.

[0066] 8. The second cylinder 25 drives the clamping end 27 of the clamping rod 26 to retract, exiting from the clamping groove 17 on the outer side of the motor rotor output end 16 and exiting to the outside of the transport track 2; the first cylinder 20 drives the ejector pin 21 to retract downward, and the end of the ejector pin 21 exits from the threaded hole on the bottom end face of the motor rotor output end 16; the first gripper module 6, the second gripper module 7 and the third gripper module 8 are released, completing the assembly process;

[0067] 9. The assembled motor is transported to the next workstation via two transport tracks 2.

[0068] 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.

Claims

1. A device for assembling a motor stator and rotor, characterized in that, It includes a worktable, transport track, bracket, clamping and fixing assembly, linear motion drive assembly, motor stator assembly, motor rotor assembly, first limit assembly and second limit assembly; The motor stator assembly includes a motor stator and a motor housing assembled at one end of the motor stator; the motor rotor assembly includes a motor rotor and a gearbox housing assembled at the output end of the motor rotor. A bracket is installed on the workbench, and a clamping and fixing component for clamping and positioning the outside of the motor housing is installed on the bracket. The workbench has two parallel transport rails on its surface. These two transport rails support the end edge of the gearbox housing and transport the motor rotor assembly to the area directly below the motor stator assembly. The motor rotor is located above the two transport rails, and the output end of the motor rotor is located between the two transport rails. The workbench has a first limiting component and a second limiting component. The first limiting component cooperates with the bottom surface of the output end of the motor rotor to limit its movement, and the second limiting component cooperates with the side surface of the output end of the motor rotor to limit its movement. The linear motion drive assembly is connected to the clamping and fixing assembly, driving the motor stator assembly in the clamping and fixing assembly to reciprocate in a direction toward or away from the motor rotor assembly.

2. The motor stator and rotor assembly device according to claim 1, characterized in that, The first limiting component includes a first cylinder and an ejector pin. The first cylinder is mounted on the worktable, and the ejector pin is mounted on the output end of the first cylinder. The first cylinder drives the end of the ejector pin to extend out and insert into the threaded hole on the bottom end face of the motor rotor output end.

3. The motor stator and rotor assembly device according to claim 2, characterized in that, The workbench is provided with a limiting component, which is located between the two transport tracks. The limiting component has a limiting hole, and the end of the ejector pin passes through the limiting hole.

4. The motor stator and rotor assembly device according to claim 3, characterized in that, The second limiting component includes a second cylinder and a locking rod. A locking groove is provided on the outer side of the output end of the motor rotor. The second cylinder is installed on the table surface of the worktable. A locking rod is installed on the output end of the second cylinder. A locking end is formed at the end of the locking rod. The second cylinder drives the locking rod to extend and lock the locking end into the locking groove.

5. The motor stator and rotor assembly device according to claim 4, characterized in that, The bottom end of the clamping groove extends downward to the bottom end face of the motor rotor output end, the upper end face of the limiting member is a planar structure, and the second cylinder drives the clamping end to extend and slide on the upper end face of the limiting member.

6. The motor stator and rotor assembly device according to claim 5, characterized in that, The two transport tracks have grooves on their sides. The second cylinder is located outside the two transport tracks. The second cylinder drives the clamping end of the clamping rod to pass through the groove and clamp into the clamping slot.

7. The motor stator and rotor assembly device according to any one of claims 4 to 6, characterized in that, Multiple locking grooves are symmetrically opened on the outer side of the output end of the motor rotor.

8. The motor stator and rotor assembly device according to claim 1, characterized in that, The clamping and fixing assembly includes three gripper modules: a first gripper module, a second gripper module, and a third gripper module. The first gripper module is installed on the top of the bracket and is used to clamp and limit the end of the motor housing away from the motor stator. The second gripper module and the third gripper module are symmetrically arranged on the side of the bracket and can move close to each other to clamp and limit the outer side of the motor housing.

9. The motor stator and rotor assembly device according to claim 8, characterized in that, The linear motion drive assembly is fixedly installed on the top of the bracket and drivenly connected to the first gripper module. The second gripper module and the third gripper module are slidably installed on the side of the bracket. The linear motion drive assembly drives the first gripper module and the motor stator assembly to move, and drives the second gripper module and the third gripper module to slide on the side of the bracket.

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