Motor stator and rotor assembling device

Abstract

The invention discloses a motor stator and rotor assembling device which comprises a workbench, a support is installed on the workbench, and a clamping and fixing assembly used for clamping and positioning a motor stator assembly is installed on the support. Two conveying rails arranged side by side are arranged on the table top of the workbench, the two conveying rails support the edge of the end of a gearbox shell of a motor rotor assembly and convey the motor rotor assembly to the position under a motor stator assembly, a motor rotor is located above the two conveying rails, and the output end of the motor rotor is located between the two conveying rails. A first limiting assembly matched with the bottom end face of the output end of the motor rotor for limiting and a second limiting assembly matched with the side face of the output end of the motor rotor for limiting are arranged on the table top of the workbench. The linear movement driving assembly is connected with the clamping and fixing assembly. The rotor shaft is fixed on a single side, the stator and the rotor are assembled simply, efficiently and accurately, and the rotor shaft assembling device can adapt to rotor shafts and shells with different assembling modes and different shapes and sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle tooling, and in particular to a motor stator and rotor assembly device. Background Art

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

[0003] The existing motor stator and rotor assembly device is generally composed of a stator clamping device, an upper ejector pin, and a lower ejector pin. The stator is fixed by the stator clamping device, and the upper and lower cylinders drive the upper and lower ejector pins respectively, and make the upper and lower ejector pins respectively press against the two ends of the rotor to position the rotor, and then push the rotor into the stator through the upper and lower cylinders. However, this motor stator and rotor assembly device has the following defects:

[0004] (1) Single assembly form: Because double ejector pins are required to locate the rotor, it is only suitable for the situation where there is no interference from the housing on both sides of the rotor shaft. If there is interference from the housing on both ends of the rotor shaft, double ejector pins cannot be used for positioning. When the ejector pin cannot be used on one side, the stability and accuracy of the rotor shaft will deviate. Alternatively, a hole must be opened in the housing for the ejector pin to pass through, which increases the overall cost and affects the integrity and airtightness of the housing.

[0005] (2) Insufficient assembly precision: Although the existing stator-rotor assembly device can automatically complete the assembly process, since the two ends of the rotor are only abutted and limited by the upper and lower pins, the problem of insufficient assembly precision still occurs in some cases;

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

[0007] In order to solve the problems existing in the above-mentioned background technology, 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 to simply, efficiently and accurately assemble the stator and rotor, and can adapt to different assembly modes and rotor shafts and housings of different shapes and sizes.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] The present invention provides a motor stator and rotor assembly device, comprising a workbench, a transport track, a bracket, a clamping and fixing assembly, a linear motion drive assembly, a motor stator assembly, a motor rotor assembly, a first limit assembly and a second limit assembly;

[0010] The motor stator assembly includes a motor stator and a motor housing mounted on one end of the motor stator, and the motor rotor assembly includes a motor rotor and a gear box housing mounted on an 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 outer side of the motor housing is installed on the bracket;

[0012] The workbench is provided with two transport rails arranged side by side, the two transport rails support the end edges of the gear box housing, and transport the motor rotor assembly to directly below the motor stator assembly, the motor rotor is located above the two transport rails, and the motor rotor output end is located between the two transport rails, and the workbench is provided with a first limiting assembly and a second limiting assembly, the first limiting assembly cooperates with the bottom end surface of the motor rotor output end for limiting, and the second limiting assembly cooperates with the side surface of the motor rotor output end for limiting;

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

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

[0015] During operation, the end of the ejector pin conveyed by the first cylinder cooperates with the threaded hole on the bottom end surface of the motor rotor output end, and the end of the ejector pin reaches a predetermined position according to the process control, thereby limiting the Z-axis freedom of the motor rotor output end (rotor shaft).

[0016] Furthermore, a limiting member is arranged on the workbench, the limiting member is located between the two transport rails, a limiting hole is formed on the limiting member, and the end of the ejector pin passes through the limiting hole.

[0017] When the first cylinder conveys the ejector member to extend upward, the ejector member passes upward through the limiting hole on the limiting member, which guides and limits the ejector member, ensuring that the end of the ejector member 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 assembly includes a second cylinder and a clamping rod. A clamping groove is provided on the outer side surface of the output end of the motor rotor. The second cylinder is installed on the surface of the workbench. A clamping rod is installed at the output end of the second cylinder. A clamping end is formed at the end of the clamping rod. The second cylinder drives the clamping rod to extend and clamps the clamping end into the clamping groove.

[0019] During operation, the second cylinder conveys the clamping rod to extend and clamp the clamping end into the clamping groove on the outer side surface of the motor rotor output end, clamping the rotor shaft to limit its XY axis freedom.

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

[0021] When the second cylinder drives the clamping end of the clamping rod to extend and clamp into the clamping groove, the upper end surface of the limit member plays a role of limiting support for the clamping end, and the clamping end slides close to the upper end surface of the limit member, making the extension process of the clamping rod smoother, 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 rails, and the second cylinder is located outside the two transport rails. The second cylinder drives the clamping end of the clamping rod to pass through the groove and be clamped into the clamping groove.

[0023] Due to the limited space between the two transport rails, directly installing the second cylinder and the clamping rod between the two transport rails will cause interference between the longer clamping rod and the transport rail for transmission. Therefore, in the present invention, the second cylinder and the clamping rod are arranged on the outside of the transport rail, and a groove is opened on the side of the transport rail. The clamping end of the end of the clamping rod conveyed by the second cylinder passes through the groove on the side of the transport rail, enters between the two transport rails, and is clamped and matched with the clamping groove on the outer side of the output end of the motor rotor.

[0024] Furthermore, a plurality of clamping grooves are symmetrically provided on the outer surface of the output end of the motor rotor.

[0025] When the motor rotor assembly is placed on two transport tracks, taking into account the subsequent cooperation with the second limit assembly, the placement position of the motor rotor assembly will be specially adjusted so that the clamping groove on the outer side surface of the motor rotor output end faces one of the transport tracks. However, since the second limit assembly is only provided on the outer side of one of the transport tracks, sometimes the second limit assembly and the clamping groove on the outer side surface of the motor rotor output end are exactly back to back. Therefore, preferably, two clamping grooves are symmetrically provided on the outer side surface of the motor rotor output end to avoid the above situation. In addition, the overall cost is not high and it is easy to operate and implement.

[0026] In a specific embodiment, second limit assemblies may be respectively provided on the outer sides of the two transport tracks, and the second limit assemblies on the corresponding sides may be selected for use according to the corresponding directions of the clamping grooves on the outer side surfaces of the motor rotor output ends.

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

[0028] During operation, the motor housing is clamped from three directions by the cooperation of the first clamping jaw module, the second clamping jaw module and the third clamping jaw module, so that the motor stator assembly is firmly clamped and fixed.

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

[0030] Specifically, the second clamping jaw module and the third clamping jaw module are structures in which a cylinder and a clamping member cooperate. The first clamping jaw module is not provided with a cylinder, and is directly driven and connected to the linear motion drive assembly, thereby saving one cylinder.

[0031] During operation, the motor stator assembly is first placed on two transport tracks, and then transported to the bottom of the clamping and fixing assembly through the transport tracks. The motor housing is clamped from three directions through the cooperation of the first clamping module, the second clamping module and the third clamping module. When the linear motion drive assembly drives the first clamping module to move upward, the clamped motor stator assembly and the second clamping module and the third clamping module move upward accordingly.

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

[0033] In the present invention, the assembly surface of the motor housing is a planar structure, and the upper and lower end surfaces of the gear box housing are both planar structures. Through the cooperation of two transport rails with the assembly surface of the motor housing and the end surface of the gear box housing, the motor stator assembly and the motor rotor assembly can be transported to specific positions in sequence for subsequent assembly operations. The outer side of the motor housing is clamped by the cooperation of the clamping and fixing assembly and the linear moving drive assembly, and the clamped and fixed motor stator assembly is moved upward. The first limiting assembly cooperates with the bottom end surface of the motor rotor output end to limit the Z-axis freedom of the rotor shaft, and the second limiting assembly cooperates with the motor The side cooperation of the rotor output end is used to limit the freedom of the rotor shaft in the XY axis, so as to realize unilateral fixation of the rotor shaft, ensure the stability and accuracy of the motor rotor during the assembly process, improve the coaxiality and verticality of the stator and rotor assembly, thereby improving the overall assembly accuracy, and there is no need to open holes in the shell, thus reducing production costs. The production cost can be reduced by unilateral clamping, and it can adapt to different production lines, different assembly modes and rotor shafts and shells of different shapes and sizes, providing reliable stator and rotor assembly solutions for different production lines, with strong versatility and flexibility to meet the needs of different fields. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0035] Figure 1 It is a structural schematic diagram of the motor stator and rotor assembly device of the present invention when in operation;

[0036] Figure 2 It is a three-dimensional structural schematic diagram of the motor stator and rotor assembly device of the present invention when in operation;

[0037] Figure 3 It is a schematic diagram of the structure of the first limit assembly and the second limit assembly on the workbench of the present invention;

[0038] Figure 4 It is a schematic diagram of the local structure when the first limit assembly and the second limit assembly in the present invention are used in conjunction with the motor stator;

[0039] Figure 5 It is a structural schematic diagram of the motor stator in the present invention;

[0040] Figure 6 It is a schematic diagram of the structure of the clamping and fixing assembly in the present invention;

[0041] Among them, the specific drawings are marked as:

[0042] Workbench 1, transport track 2, groove 3, bracket 4, clamping and fixing assembly 5, first clamping jaw module 6, second clamping jaw module 7, third clamping jaw 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, gear box housing 18, first limiting assembly 19, first cylinder 20, ejector pin 21, limiting member 22, limiting hole 23, second limiting assembly 24, second cylinder 25, clamping rod 26, clamping end 27. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The embodiment of the present invention discloses a motor stator 11 and rotor assembly device, such as Figure 1 , Figure 2 and Figure 5 As shown, it includes a workbench 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 limit assembly 19 and a second limit assembly 24;

[0045] The motor stator assembly 10 includes a motor stator 11 and a motor housing 12 mounted on one end of the motor stator 11, and the motor rotor assembly 13 includes a motor rotor 14 and a gear box housing 18 mounted on an 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 outer side of the motor housing 12 is installed on the bracket 4;

[0047] Two transport rails 2 arranged side by side are provided on the table top of the workbench 1. The two transport rails 2 support the end edges of the gear box housing 18 and transport the motor rotor assembly 13 to the bottom of the motor stator assembly 10. The motor rotor 14 is located above the two transport rails 2. The motor rotor output end 16 is located between the two transport rails 2. A first limiting assembly 19 and a second limiting assembly 24 are provided on the table top of the workbench 1. The first limiting assembly 19 cooperates with the bottom end surface of the motor rotor output end 16 for limiting, and the second limiting assembly 24 cooperates with the side surface of the motor rotor output end 16 for limiting;

[0048] The linear motion drive component 9 is connected to the clamping and fixing component 5, driving the motor stator component 10 in the clamping and fixing component 5 to reciprocate toward or away from the motor rotor component 13, and assembling the motor rotor 14 and the motor rotor non-output end 15 into the motor stator 11 and the motor housing 12 accordingly.

[0049] The assembly surface of the motor housing 12 is a planar structure, and the upper and lower end surfaces of the gear box housing 18 are both planar structures. The motor stator assembly 10 and the motor rotor assembly 13 can be transported to specific positions in sequence for subsequent assembly operations by cooperating with the two transport rails 2 and the assembly surface of the motor housing 12 and the end surface of the gear box housing 18. The outer side of the motor housing 12 is clamped by the clamping and fixing assembly 5 and the linear moving drive assembly 9, and the clamped motor stator assembly 10 is moved upward, and the first limiting assembly 19 is used to cooperate with the bottom end surface of the motor rotor output end 16 to limit the Z-axis freedom of the rotor shaft, and the second limiting assembly 19 is used to limit the Z-axis freedom of the rotor shaft. The positioning component 24 cooperates with the side of the motor rotor output end 16 to limit the position, limit the freedom of the rotor shaft in the XY axis, and realize unilateral fixation of the rotor shaft, ensuring the stability and accuracy of the motor rotor 14 during the assembly process, and improving the coaxiality and verticality of the stator and rotor assembly, thereby improving the overall assembly accuracy. There is no need to open a hole in the shell, which reduces production costs. The production cost can be reduced by unilateral clamping, and it can adapt to different production lines. It can adapt to different assembly modes and rotor shafts and shells of different shapes and sizes, providing reliable stator and rotor assembly solutions for different production lines. It has strong versatility and flexibility to meet the needs of different fields.

[0050] Among them, Figure 3-5 As shown, the first limit assembly 19 includes a first cylinder 20 and an ejector 21. The first cylinder 20 is installed at the bottom end of the workbench 1, and the ejector 21 is installed at the output end of the first cylinder 20. The first cylinder 20 drives the end of the ejector 21 to extend and insert into the threaded hole at the bottom end surface of the motor rotor output end 16. During operation, the first cylinder 20 conveys the end of the ejector 21 to cooperate with the threaded hole at the bottom end surface of the motor rotor output end 16, and the end of the ejector 21 reaches a predetermined position according to the process control, thereby limiting the Z-axis freedom of the motor rotor output end 16 (rotor shaft).

[0051] Among them, a limiting member 22 is provided on the workbench 1, and the limiting member 22 is located between the two transport rails 2. A limiting hole 23 is provided on the limiting member 22, and the end of the ejector member 21 passes through the limiting hole 23. When the first cylinder 20 conveys the ejector member 21 to extend upward, the ejector member 21 passes upward through the limiting hole 23 on the limiting member 22, which guides and limits the ejector member 21, ensuring that the end of the ejector member 21 is smoothly aligned and inserted into the threaded hole on the bottom end surface of the motor rotor output end 16.

[0052] Among them, Figure 3-5As shown, the second limit assembly 24 includes a second cylinder 25 and a clamping rod 26. A clamping groove 17 is provided on the outer side of the motor rotor output end 16. The second cylinder 25 is installed on the table surface of the workbench 1. The output end of the second cylinder 25 is installed with a clamping rod 26. The end of the clamping rod 26 is formed with a clamping end 27. The second cylinder 25 drives the clamping rod 26 to extend and clamp the clamping end 27 into the clamping groove 17. When working, the second cylinder 25 conveys the clamping rod 26 to extend and clamps the clamping end 27 into the clamping groove 17 on the outer side of the motor rotor output end 16, which clamps the rotor shaft to limit its XY axis freedom.

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

[0054] Among them, a groove 3 is provided on the side of the two transport rails 2, and the second cylinder 25 is located outside the two transport rails 2. The second cylinder 25 drives the clamping end 27 of the clamping rod 26 to pass through the groove 3 and clamp into the clamping groove 17. Since the space between the two transport rails 2 is limited, if the second cylinder 25 and the clamping rod 26 are directly installed between the two transport rails 2, the longer clamping rod 26 will interfere with the transport rail 2 being transported. Therefore, in the present invention, the second cylinder 25 and the clamping rod 26 are arranged outside the transport rail 2, and a groove 3 is provided on the side of the transport rail 2. The clamping end 27 of the clamping rod 26 of the second cylinder 25 passes through the groove 3 on the side of the transport rail 2, enters between the two transport rails 2, and is clamped and matched with the clamping groove 17 on the outer side of the motor rotor output end 16.

[0055] Among them, a plurality of clamping grooves 17 are symmetrically provided on the outer side surface of the motor rotor output end 16. When the motor rotor assembly 13 is placed on the two transport rails 2, considering that it will be matched with the second limiting assembly 24 later, the placement position of the motor rotor assembly 13 will be specially adjusted so that the clamping groove 17 on the outer side surface of the motor rotor output end 16 is directly opposite to one of the transport rails 2. However, since the second limiting assembly 24 is only provided on the outer side of one of the transport rails 2, sometimes the second limiting assembly 24 and the clamping groove 17 on the outer side surface of the motor rotor output end 16 are just opposite to each other. Therefore, preferably, two clamping grooves 17 are symmetrically provided on the outer side surface of the motor rotor output end 16, which can avoid the above situation, and the overall cost is not high and the operation is easy to implement. In a specific embodiment, the second limiting assembly 24 can also be provided on the outer side of the two transport rails 2, respectively, and the second limiting assembly 24 on the corresponding side is selected according to the corresponding direction of the clamping groove 17 on the outer side surface of the motor rotor output end 16.

[0056] Among them, Figure 1 , Figure 2 and Figure 6 As shown, the clamping and fixing assembly 5 includes three clamping modules, namely the first clamping module 6, the second clamping module 7 and the third clamping module 8. The first clamping module 6 is installed 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 clamping module 7 and the third clamping module 8 are symmetrically arranged on the side of the bracket 4. The second clamping module 7 and the third clamping module 8 can be close to each other to clamp and limit the outer side of the motor housing 12. When working, the motor housing 12 is clamped from three directions by the cooperation of the first clamping module 6, the second clamping module 7 and the third clamping module 8, so that the motor stator assembly 10 is firmly clamped and fixed.

[0057] Among them, the linear motion drive assembly 9 is fixedly installed on the top of the bracket 4 and is driven and connected with the first clamping module 6. The second clamping module 7 and the third clamping module 8 are slidably installed on the side of the bracket 4. The linear motion drive assembly 9 drives the first clamping module 6 and the motor stator assembly 10 to move, and drives the second clamping module 7 and the third clamping module 8 to slide on the side of the bracket 4. Specifically, the second clamping module 7 and the third clamping module 8 are structures in which the cylinder and the clamping member cooperate. The second clamping module 7 and the third clamping module 8 are respectively installed on the adjustment block, and the adjustment block is slidably connected with the bracket 4. The first clamping module 6 is not provided with a cylinder, and it is directly driven and connected with the linear motion drive assembly 9, which can save one cylinder. During operation, the motor stator assembly 10 is first placed on two transport rails 2, and the motor stator assembly 10 is transported to the bottom of the clamping and fixing assembly 5 through the transport rails 2. The motor housing 12 is clamped from three directions through the cooperation of the first clamping module 6, the second clamping module 7 and the third clamping module 8. When the linear moving drive assembly 9 drives the first clamping module 6 to move upward, the clamped motor stator assembly 10 and the second clamping module 7 and the third clamping module 8 move upward accordingly.

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

[0059] 1. Pre-press and assemble the motor stator 11 and the motor housing 12 to form a motor stator assembly 10;

[0060] 2. Assemble the motor rotor 14 and the gearbox housing 18 to form a 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 facing vertically downward, and transport the motor stator assembly 10 to the bottom of the clamping and fixing assembly 5 through the transport rails 2. The motor housing 12 is clamped from three directions by the cooperation of the first clamping jaw module 6, the second clamping jaw module 7 and the third clamping jaw module 8. During the upward movement of the first clamping jaw module 6 driven by the linear motion drive assembly 9, the clamped and fixed motor stator assembly 10 and the second clamping jaw module 7 and the third clamping jaw module 8 move upward accordingly;

[0062] 4. Place the ends of the gearbox housing 18 on the two transport rails 2, with the motor rotor 14 facing vertically upward and located above the two transport rails 2, and the motor rotor output end 16 located between the two transport rails 2, and transport the motor rotor assembly 13 to the bottom of the motor stator assembly 10 through the transport rails 2;

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

[0064] 6. The first cylinder 20 conveys the ejector 21 to extend upward, and the ejector 21 passes through the limiting hole 23 on the limiting member 22 upward, and the end of the ejector 21 cooperates with the threaded hole on the bottom end surface of the motor rotor output end 16. The end of the ejector 21 reaches a predetermined position according to the process control, thereby limiting the Z-axis freedom of the rotor shaft;

[0065] 7. The linear motion drive assembly 9 drives the first clamping jaw module 6 and the motor stator assembly 10 to move downward, and the second clamping jaw module 7 and the third clamping jaw module 8 move downward accordingly, until the motor rotor 14 and the motor rotor non-output end 15 are correspondingly 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 at the end of the clamping rod 26 to retract, withdraw from the clamping groove 17 on the outer side of the motor rotor output end 16, and withdraw to the outside of the transport track 2; the first cylinder 20 drives the ejector 21 to retract downward, and the end of the ejector 21 withdraws from the threaded hole on the bottom end surface of the motor rotor output end 16; loosen the first clamping jaw module 6, the second clamping jaw module 7 and the third clamping jaw module 8, and the assembly process is completed;

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

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor stator and rotor assembly device, characterized in that: It includes a workbench, a transport track, a bracket, a clamping and fixing assembly, a linear motion drive assembly, a motor stator assembly, a motor rotor assembly, a first limit assembly and a second limit assembly; The motor stator assembly includes a motor stator and a motor housing mounted on one end of the motor stator, and the motor rotor assembly includes a motor rotor and a gear box housing mounted on an output end of the motor rotor; A bracket is installed on the workbench, and a clamping and fixing component for clamping and positioning the outer side of the motor housing is installed on the bracket; The workbench is provided with two transport rails arranged side by side, the two transport rails support the end edges of the gear box housing, and transport the motor rotor assembly to directly below the motor stator assembly, the motor rotor is located above the two transport rails, and the motor rotor output end is located between the two transport rails, and the workbench is provided with a first limiting assembly and a second limiting assembly, the first limiting assembly cooperates with the bottom end surface of the motor rotor output end for limiting, and the second limiting assembly cooperates with the side surface of the motor rotor output end for limiting; The linear motion driving assembly is connected to the clamping and fixing assembly, and drives the motor stator assembly in the clamping and fixing assembly to reciprocate in a direction approaching 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 assembly includes a first cylinder and a ejector pin. The first cylinder is installed on the workbench, and the ejector pin is installed 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 surface of the motor rotor output end.

3. The motor stator and rotor assembly device according to claim 2, characterized in that: A limiting member is arranged on the workbench, the limiting member is located between the two transport rails, a limiting hole is provided on the limiting member, 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 assembly includes a second cylinder and a clamping rod. A clamping groove is provided on the outer surface of the output end of the motor rotor. The second cylinder is installed on the surface of the workbench. A clamping rod is installed at the output end of the second cylinder. A clamping end is formed at the end of the clamping rod. The second cylinder drives the clamping rod to extend and clamp the clamping end into the clamping 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 surface of the motor rotor output end, the upper end surface of the limiter is a planar structure, and the second cylinder drives the clamping end to extend and slide on the upper end surface of the limiter.

6. The motor stator and rotor assembly device according to claim 5, characterized in that: Grooves are provided on the side surfaces of the two transport rails. The second cylinder is located outside the two transport rails. The second cylinder drives the clamping end of the clamping rod to pass through the groove and be clamped into the clamping groove.

7. The motor stator and rotor assembly device according to any one of claims 4 to 6, characterized in that: A plurality of clamping grooves are symmetrically arranged on the outer side surface 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 clamping modules, namely a first clamping module, a second clamping module and a third clamping module. The first clamping module is installed on the top of the bracket to clamp and limit the end of the motor housing away from the motor stator. The second clamping module and the third clamping module are symmetrically arranged on the side of the bracket. The second clamping module and the third clamping module can be 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 mounted on the top of the bracket and is drivingly connected to the first clamp module. The second clamp module and the third clamp module are slidably mounted on the side of the bracket. The linear motion drive assembly drives the first clamp module and the motor stator assembly to move, and drives the second clamp module and the third clamp module to slide on the side of the bracket.

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