Motor stator hot assembly device and assembly process

Abstract

The application discloses a motor stator hot assembly device and an assembly process and belongs to the technical field of motor stator assembly. The application comprises a rack, wherein the rack is provided with a transfer assembly, a heat exchange assembly and a stator supply assembly; the transfer assembly comprises a rotary disc and three limiting sleeves arranged in an annular array on the rotary disc; the limiting sleeves are circularly switched among different stations under the driving of the rotary disc; the heat exchange assembly comprises a bearing plate which is lifted and arranged on the rack, and the bearing plate is provided with a cooling sleeve and a heating sleeve; the cooling sleeve and the heating sleeve are sleeved on the corresponding limiting sleeves to form a sealed space after being lowered; and the stator supply assembly is used for assembling the stator into the heated shell. The application can synchronize the heating, cooling and stator assembly operations to improve the assembly efficiency; meanwhile, the shell is heated in the sealed space, so that the heat loss can be reduced to reduce the energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of motor stator assembly technology, and more specifically, relates to a motor stator thermal assembly device and assembly process. Background Technology

[0002] The stator is the stationary part of a motor or generator. It consists of a stator core and stator windings, and its main function is to generate (output) current by being cut by magnetic lines of force in a rotating magnetic field. In conventional installation, the stator and housing are typically assembled using a heat-fitting process. This utilizes the principle of thermal expansion and contraction: the housing is first heated to increase its temperature, increasing the inner diameter of the housing cavity, making it slightly larger than the stator's outer diameter; then the stator is inserted into the housing cavity, and after cooling, the assembly between the stator and housing is complete. However, existing stator heat-fitting fixtures consume a lot of energy when heating the housing; simultaneously, the cooling efficiency after positioning and assembly is low, thus affecting the overall assembly efficiency. Therefore, designing a low-energy-consumption heat-fitting fixture that can effectively improve assembly efficiency is of significant practical importance in production.

[0003] A search revealed that patent CN217335371U discloses a motor stator heat fitting fixture structure. This application heats the motor housing with a heating coil and simultaneously presses the stator assembly into the motor housing with a pressure head, thereby improving production efficiency and reducing the difficulty of process control.

[0004] Patent CN212695874U discloses a motor stator heat-fitting device. In this application, the motor housing is transported to a heating device for heating via a horizontal sliding assembly. After heating, the horizontal sliding assembly transports the motor housing directly below the stator positioning fixture. Then, the stator positioning fixture operates to press the motor stator into the motor housing, replacing manual pressing of the motor stator and effectively saving manpower.

[0005] The aforementioned applications all involve technical improvements to the heat-shrink fitting tooling for motor stators. Meanwhile, in patent CN212695874U, the use of cold air generated by a cooling fan to cool the housing can shorten the cooling time and improve overall assembly efficiency. However, the problem of high energy consumption for heating the housing has not been effectively solved. Summary of the Invention

[0006] 1. The problem to be solved

[0007] In view of at least some of the problems existing in the prior art, the present invention proposes a motor stator thermal assembly device and assembly process, the purpose of which is to solve the problems of high heating energy consumption and low assembly efficiency of the existing stator thermal fitting tooling.

[0008] 2. Technical Solution

[0009] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0010] The present invention provides a motor stator thermal assembly device, comprising a frame, wherein the frame is provided with,

[0011] The transfer assembly includes a rotary table rotatably mounted on a frame and three limiting sleeves arranged in a circular array on the rotary table; the limiting sleeves are cyclically switched between different workstations under the drive of the rotary table.

[0012] A heat exchange assembly includes a support plate that is lifted and mounted on the frame. The support plate is provided with a cooling jacket and a heating jacket. The cooling jacket is connected to an air supply pipe, and the heating jacket is provided with a heating element. After the cooling jacket and the heating jacket are lowered, they are fitted onto corresponding limiting sleeves to form a sealed space.

[0013] And a stator supply assembly, the stator supply assembly including a carrier sleeve located above the transfer assembly, the carrier sleeve being used to assemble the stator into the heated housing.

[0014] Furthermore, a hot air pipe is connected between the cooling jacket and the heating jacket, and the cooled air after heat exchange enters the heating jacket through the hot air pipe to preheat the shell to be heated.

[0015] Furthermore, a vibrator is provided on the outer peripheral wall of the bearing sleeve; a conveying pipe is provided inside the bearing sleeve, and the inner wall of the conveying pipe is provided with several grinding parts for grinding the stator.

[0016] Furthermore, a magnet is provided between the conveying pipe and the bearing sleeve; an annular brush is provided at the bottom of the conveying pipe; the annular brush is disposed on the inner wall of the bearing sleeve.

[0017] Furthermore, the delivery pipe is an air bladder, and the delivery pipe is equipped with an air inlet pipe and an air outlet pipe for adjusting the pressure of the gas inside the delivery pipe.

[0018] Furthermore, the air inlet pipe is connected to the heating jacket via a heat exchanger; the air outlet pipe is connected to the air supply pipe via an air pump.

[0019] Furthermore, the inner wall of the conveying pipe is corrugated; and the outlet of the conveying pipe is provided with guide rollers distributed in a ring.

[0020] Furthermore, a buffer pad is provided at the contact point between the bearing sleeve and the frame; a sealing ring is provided on the outer side of the limiting sleeve to fit the ends of the cooling sleeve and the heating sleeve.

[0021] Furthermore, one end of the hot air duct is located at the top of the inner cavity of the cooling jacket, and the other end extends to the bottom of the inner cavity of the heating jacket.

[0022] The present invention also provides a thermal assembly process for an electric motor stator, which includes the following steps:

[0023] S1. First, place the shells into the corresponding limiting sleeves on the rotary table; at this time, the three limiting sleeves are located at the heating station, the feeding station, and the cooling station, respectively.

[0024] S2. The support plate descends, causing the cooling sleeve and heating sleeve to be respectively fitted onto the limiting sleeves of the cooling station and the heating station;

[0025] S3. The shell inside the heating jacket is heated. When the shell is heated to the set temperature, the support plate drives the cooling jacket and the heating jacket to rise. Then, the rotary table rotates, causing each limiting sleeve and the shell inside it to rotate to the next station. At this time, the heated shell rotates from the heating station to the feeding station. The shell that was originally located in the cooling station rotates to the heating station.

[0026] S4. The support plate descends again, placing the cooling jacket and heating jacket onto the corresponding station's limiting sleeve; simultaneously, the stator is added into the heated and expanded shell located at the feeding station through the conveying pipe to complete the stator assembly operation and form an assembly; during the assembly process, the heating jacket continues to heat the newly transferred shell inside.

[0027] S5. Raise the support plate and rotate the turntable. The turntable will rotate the heated shell back to below the support sleeve. At this time, a new shell will be inserted below the heating sleeve, while the assembly will be located below the cooling sleeve.

[0028] S6. The support plate descends and the air pump is started. Cooling air enters the cooling jacket through the air supply pipe to remove the heat of the assembly. It is then transported to the heating jacket through the hot air pipe to preheat the shell inside. The air is discharged through the heating jacket to the air inlet pipe. After heat exchange in the heat exchanger on the air inlet pipe, the temperature of the gas is adjusted. Finally, the gas enters the delivery pipe, which insulates the internal stator. Finally, the gas completes the circulation under the action of the air pump.

[0029] S7. After the assembly has cooled down, remove the assembly and replace it with a new shell to complete one assembly operation. Repeat this process.

[0030] 3. Beneficial effects

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] (1) The stator hot assembly device of the present invention has three limiting sleeves on a rotary table. The limiting sleeves can be cyclically switched between the heating station, the cooling station and the feeding station under the drive of the rotary table, so that the heating, cooling and stator assembly operations can be carried out simultaneously, thereby effectively improving the overall efficiency of the assembly process. At the same time, the cooperation between the heating sleeve and the limiting sleeve can form a sealed heating space, which can effectively reduce heat loss and reduce energy consumption. Cooling air is introduced into the cooling sleeve through the air supply pipe, which can shorten the cooling time of the shell and also help improve the assembly efficiency.

[0033] (2) A motor stator hot assembly device of the present invention connects a hot air pipe between a cooling jacket and a heating jacket. The cooling air introduced into the cooling jacket exchanges heat with the hot assembly and then enters the heating jacket to preheat the shell to be heated. This not only realizes the recovery and utilization of heat, but also reduces the energy consumption of shell heating.

[0034] (3) The stator hot assembly device of the present invention can clean the burrs and debris on the stator by providing a vibrator and a grinding part on the bearing sleeve; at the same time, the debris ground off is further cleaned and collected by using a magnet and a ring brush, making the stator exterior smoother and cleaner, which is conducive to ensuring the assembly accuracy and assembly efficiency of the stator.

[0035] (4) The present invention provides a motor stator thermal assembly device in which the conveying pipe is designed as an air bladder. By adjusting the gas pressure inside the air bladder, the inner diameter of the air bladder can be changed, thereby adapting to the feeding operation of stators of different specifications. At the same time, by introducing constant temperature gas into the air bladder, the stator can be kept in the same constant temperature environment before entering the housing, which can effectively avoid the impact of changes in the external ambient temperature on the assembly efficiency and accuracy of the stator.

[0036] (5) A motor stator hot assembly device of the present invention has a buffer pad at the contact point between the bearing sleeve and the housing. By setting the buffer pad, on the one hand, the impact of the vibrator on the frame when it is working can be effectively avoided; on the other hand, the vibration effect of the conveying pipe can be better, which is conducive to improving the cleaning effect of the grinding part; at the same time, the setting of the guide roller makes the stator fall into the housing more smoothly, so as to ensure the stator assembly efficiency. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a motor stator thermal assembly device according to the present invention;

[0038] Figure 2 This is a schematic diagram of the transfer component in the present invention;

[0039] Figure 3 This is a schematic diagram of the heat exchange component in this invention;

[0040] Figure 4This is a schematic diagram of the stator supply assembly in this invention;

[0041] Figure 5 This is a schematic diagram of the conveying pipe in this invention;

[0042] Figure 6 This is a schematic diagram of the assembly between the heat exchange component and the stator supply component in this invention.

[0043] In the diagram: 1. Frame; 2. Transfer assembly; 21. Rotary table; 22. Limiting sleeve; 221. Sealing ring; 23. Motor;

[0044] 3. Heat exchange assembly; 31. Support plate; 32. Cooling jacket; 33. Heating jacket; 331. Heating element; 34. Air supply duct; 35. Hot air duct; 36. Heat exchanger; 37. Air pump; 38. Cylinder;

[0045] 4. Stator supply assembly; 41. Bearing sleeve; 42. Conveying pipe; 421. Grinding section; 422. Inlet pipe; 423. Outlet pipe; 424. Bypass pipe; 425. Solenoid valve; 43. Magnet; 44. Vibrator; 45. Annular brush; 46. Guide roller; 47. Buffer pad;

[0046] 5. Housing; 6. Stator; 7. Controller. Detailed Implementation

[0047] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings.

[0048] 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. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] The present invention will be further described below with reference to specific embodiments.

[0050] like Figure 1As shown, this embodiment of a motor stator thermal assembly device includes a frame 1 and a transfer assembly 2, a heat exchange assembly 3, and a stator supply assembly 4 mounted on the frame 1. The transfer assembly 2 carries the housing 5 and drives it to circulate between different workstations, allowing operations at different workstations to be performed synchronously to improve assembly efficiency. The heat exchange assembly 3 is located above the transfer assembly 2 and is used to heat the housing 5 to be heated on the transfer assembly 2 and to cool the assembled thermal assembly. The stator supply assembly 4 is also located above the transfer assembly 2 and is mainly used to feed the stator 6 into the heated and expanded housing 5 to complete the stator assembly operation.

[0051] Specifically, refer to Figure 2 As shown, the transfer assembly 2 includes a rotary table 21 and limiting sleeves 22. The rotary table 21 is rotatably mounted on the frame 1 via a motor 23. Three limiting sleeves 22 are arranged in a circular array on the rotary table 21. When the housing 5 is placed within the corresponding limiting sleeve 22, driven by the rotary table 21, the housing 5 can cycle between heating, cooling, and feeding stations to simultaneously perform heating, cooling, and feeding operations, thereby effectively improving the overall efficiency of the assembly process.

[0052] like Figure 3 As shown, the heat exchange assembly 3 includes a support plate 31 and a cooling jacket 32 ​​and a heating jacket 33 disposed at the bottom of the support plate 31. The support plate 31 is vertically and vertically mounted on the frame 1 via a cylinder 38. The cooling jacket 32 ​​has a cooling station below it and is connected to an air supply duct 34. The heating jacket 33 has a heating station below it and contains a heating element 331, such as a heating coil.

[0053] When cylinder 38 drives the support plate 31 and causes the cooling jacket 32 ​​and heating jacket 33 to descend, the limiting sleeve 22 located at the cooling station and the cooling jacket 32 ​​are interlocked to form a closed cooling space, while the heating jacket 33 and the limiting sleeve 22 located at the heating station are interlocked to form a closed heating space. Cooling air is introduced into the cooling jacket 32 ​​through the air supply pipe 34, which can shorten the cooling time of the shell 5 to be cooled. At the same time, the shell 5 to be heated is heated in the sealed heating space, which can effectively reduce heat loss and reduce energy consumption.

[0054] Preferably, a hot air duct 35 is connected between the cooling jacket 32 ​​and the heating jacket 33. One end of the hot air duct 35 is located at the top of the inner cavity of the cooling jacket 32, and the other end extends to the bottom of the inner cavity of the heating jacket 33. By setting the hot air duct 35, the cooling air entering the cooling jacket 32 ​​exchanges heat before entering the heating jacket 33 to preheat the shell 5 to be heated. This not only realizes heat recovery and utilization but also reduces the energy consumption of shell heating.

[0055] Meanwhile, to ensure the sealing performance of the cooling sleeve 32, heating sleeve 33 and limiting sleeve 22 after being fitted together, a sealing ring 221 is provided on the outside of the limiting sleeve 22. When the cooling sleeve 32 and heating sleeve 33 are fitted onto the limiting sleeve 22 at the corresponding positions, the bottom of the cooling sleeve 32 and heating sleeve 33 can fit against the sealing ring 221 to ensure the sealing performance at the contact point.

[0056] like Figure 4 , Figure 5 As shown, the stator supply assembly 4 includes a support sleeve 41 and a conveying pipe 42 disposed within the support sleeve 41. The feeding station is located below the conveying pipe 42. The stator 6 can enter the housing 5 located at the feeding station and in a state of thermal expansion through the conveying pipe 42 to complete the assembly operation of the stator 6.

[0057] Preferably, in this embodiment, a plurality of grinding parts 421 are provided on the inner wall of the conveying pipe 42 for grinding and cleaning burrs and debris on the outer peripheral wall of the stator 6, so as to make the outer peripheral wall of the stator 6 smoother, thereby helping to ensure the accuracy of assembly.

[0058] A magnet 43 is provided between the conveying pipe 42 and the bearing sleeve 41 to attract and clean magnetic debris from the grinding process. An annular brush 45 is provided at the bottom of the conveying pipe 42 to clean non-magnetic debris from the stator 6; this annular brush 45 can be directly mounted on the inner wall of the bearing sleeve 41. Simultaneously, guide rollers 46 arranged in a ring are provided at the outlet of the conveying pipe 42 to guide the stator 6 as it falls, ensuring a smooth and precise entry into the housing 5.

[0059] In addition, a vibrator 44 is provided on the outer peripheral wall of the bearing sleeve 41. Under the vibration of the vibrator 44, the stator 6 is ground and deburred by the grinding part 421 in the conveying pipe 42. The iron filings are attracted by the magnet 43 and cleaned by the annular brush 45. Finally, the stator 6 falls into the housing 5 under the guidance of the guide roller 46.

[0060] To prevent the vibrator 44 from affecting the frame 1 during operation, a buffer pad 47 is provided at the contact point between the bearing sleeve 41 and the frame 1. The buffer pad 47 effectively avoids the impact of the vibrator 44 on the frame 1 during operation; on the other hand, it improves the vibration effect of the conveying pipe 42, which is beneficial to improving the cleaning effect of the grinding section 421.

[0061] In this embodiment, as a preferred implementation of the conveying pipe 42, the conveying pipe 42 is an air bladder, and the air bladder is provided with an inlet pipe 422 and an outlet pipe 423 for adjusting the gas pressure inside the air bladder to change the inner diameter of the air bladder, thereby adapting to the feeding operation of stators of different specifications. At the same time, constant temperature gas can be introduced into the air bladder so that the stator 6 can be in the same constant temperature environment before entering the housing 5, which can effectively avoid the impact of changes in the external ambient temperature on the assembly efficiency and accuracy of the stator 6. The air bladder can be a hollow annular cavity made of thin-walled non-magnetic materials such as rubber or silicone, and the inner wall of the air bladder is corrugated. During the manufacturing process, silica sand particles can be implanted on the surface of the air bladder to form the aforementioned polishing part 421. The specific implantation process of silica sand particles is prior art and will not be described in detail here.

[0062] Specifically, in this embodiment, such as Figure 4 , Figure 6 As shown, the intake pipe 422 is connected to the heating jacket 33 via a heat exchanger 36. After heat recovery by the heating jacket 33, the gas undergoes further heat exchange and cooling in the heat exchanger 36 before flowing through the delivery pipe 42, where it insulates the stator 6, maintaining a constant low temperature. This helps to address the impact of varying ambient temperatures on assembly accuracy and efficiency. The intake pipe 422 can be made of a thin-walled heat dissipation hose, preferably a spiral tube, to allow for initial heat dissipation and improve the heat dissipation effect as the gas flows through it. The specific structure and working principle of the heat exchanger 36 are existing technologies.

[0063] The air outlet pipe 423 is connected to the air supply pipe 34 via the air pump 37. A bypass pipe 424 is provided on the air outlet pipe 423, and both the air outlet pipe 423 and the bypass pipe 424 are equipped with solenoid valves 425. By adjusting the opening degree of the solenoid valves 425, the pressure of the circulating gas during the operation of the air pump 37 can be adjusted, so that the inner diameter of the air bag can expand or contract according to the ventilation pressure, thereby adapting to the assembly of stators 6 of different sizes.

[0064] In this embodiment, a controller 7 is provided on the frame 1, and electrical components such as the motor 23, heating element 331, air pump 37, cylinder 38, solenoid valve 425, and vibrator 44 can all be controlled by the controller 7. It should be noted that the structure and control principle of the controller 7 are existing technologies and are not the focus of this application.

[0065] The specific working process and principle of the motor stator thermal assembly device in this embodiment are as follows:

[0066] When the device is started for the first time, the three housings 5 ​​are first placed into the limiting sleeves 22 on the rotary table 21. At this time, the three limiting sleeves 22 are located at the heating station, the cooling station and the feeding station respectively. For ease of description, the housings 5 ​​located at the heating station, the cooling station and the feeding station at this time are defined as the first housing, the second housing and the third housing respectively.

[0067] The controller 7 starts the cylinder 38, which drives the support plate 31 to descend, so that the cooling sleeve 32 and the heating sleeve 33 are respectively fitted onto the limiting sleeve 22 of the cooling station and the heating station, and make sealing contact with the sealing ring 221.

[0068] Subsequently, the heating element 331 is activated to heat the first shell inside the heating sleeve 33; when the first shell is heated to the set temperature, the cylinder 38 drives the support plate 31 to rise; the motor 23 is activated to drive the rotary table 21 to rotate, so that the heated first shell rotates to directly below the support sleeve 41, i.e., the feeding station.

[0069] Next, cylinder 38 drives the support plate 31 to descend, and the second and third housings after the rotary table 21 rotates are sealed by heating jacket 33 and cooling jacket 32 ​​respectively.

[0070] The air pump 37 is started to supply air into the air supply pipe 34. The air in the air supply pipe 34 passes through the cooling jacket 32, heating jacket 33 and heat exchanger 36 in sequence, and then enters the delivery pipe 42 and finally enters the air supply pipe 34 to complete the circulation. During the circulation process, the stator 6 is placed into the delivery pipe 42 from top to bottom, and the vibrator 44 is started. Under the vibration of the vibrator 44, the stator 6 is vibrated and rubbed by the grinding part 421 in the delivery pipe 42, and the burrs, iron filings and other surface residues on the outside of the stator 6 are brushed off. At the same time, the electromagnet is started to attract the iron filings. Finally, after the stator 6 is cleaned again by the annular brush 45, it is guided by the guide roller 46 and finally falls into the first housing 5, completing the assembly of the first stator 6 and the housing 5 to form an assembly. Then the air pump 37 is stopped.

[0071] When the first stator 6 falls and is assembled in the conveying pipe 42, the heating element 331 heats the second housing 5 inside the heating sleeve 33; after the first stator 6 is assembled, the cylinder 38 is raised and the rotary table 21 is rotated, and the rotary table 21 rotates the heated second housing 5 to below the bearing sleeve 41; at this time, the third housing is located below the heating sleeve 33 and the first assembly is located below the cooling sleeve 32, and the device enters normal working state.

[0072] After the device enters normal operating condition, the lowering cylinder 38, cooling jacket 32, and heating jacket 33 are respectively fitted onto the first assembly (the first housing with the stator) and the third housing 5; the air pump 37 is started, the solenoid valve 425 is opened, and the gas enters the cooling jacket 32 ​​from the side through the air supply pipe 34, carrying away the heat from the first assembly; it is then transported to the heating jacket 33 through the hot air pipe 35 to preheat the third housing; it is discharged to the air inlet pipe 422 through the side of the heating jacket 33, and after heat exchange by the heat exchanger 36 on the air inlet pipe 422, the gas temperature is adjusted, and finally the gas enters the delivery pipe 42, which keeps the newly added stator 6 warm. Finally, the gas completes circulation under the action of the air pump 37.

[0073] Next, the newly added stator 6 is placed into the delivery pipe 42, where it is kept warm by the gas flowing through the pipe 42, maintaining a constant low temperature. This process also removes burrs and debris from the outer surface of the stator 6, which then falls into the second housing, completing the assembly of the second stator 6 and the housing 5. This cycle is then repeated. It is also worth noting that after the assembly has cooled down, it can be removed and replaced with a new housing.

[0074] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A motor stator thermal assembly device, comprising a frame (1), characterized in that: The frame (1) is provided with, The transfer assembly (2) includes a rotary table (21) rotatably mounted on the frame (1) and three limiting sleeves (22) arranged in a circular array on the rotary table (21); the limiting sleeves (22) are cyclically switched between different workstations under the drive of the rotary table (21); The heat exchange assembly (3) includes a support plate (31) that is lifted and mounted on the frame (1). The support plate (31) is provided with a cooling sleeve (32) and a heating sleeve (33). The cooling sleeve (32) is connected to an air supply pipe (34), and the heating sleeve (33) is provided with a heating element (331). After the cooling sleeve (32) and the heating sleeve (33) are lowered, they are fitted onto the corresponding limiting sleeve (22) to form a sealed space. And a stator supply assembly (4), the stator supply assembly (4) including a carrier sleeve (41) located above the transfer assembly (2), the carrier sleeve (41) being used to assemble the stator (6) into the heated housing (5); A hot air pipe (35) is connected between the cooling jacket (32) and the heating jacket (33). The cooled air after heat exchange enters the heating jacket (33) through the hot air pipe (35) to preheat the shell (5) to be heated. The bearing sleeve (41) is provided with a conveying pipe (42), which is an air bag. The conveying pipe (42) is provided with an air inlet pipe (422) and an air outlet pipe (423) to regulate the pressure of the gas in the conveying pipe (42). The air inlet pipe (422) is connected to the heating jacket (33) through the heat exchanger (36); the air outlet pipe (423) is connected to the air supply pipe (34) through the air pump (37).

2. The motor stator thermal assembly device according to claim 1, characterized in that: The outer peripheral wall of the bearing sleeve (41) is provided with a vibrator (44); the inner wall of the conveying pipe (42) is provided with a plurality of grinding parts (421) for grinding the stator (6).

3. The motor stator thermal assembly device according to claim 2, characterized in that: A magnet (43) is provided between the conveying pipe (42) and the bearing sleeve (41); an annular brush (45) is provided at the bottom of the conveying pipe (42); the annular brush (45) is provided on the inner wall of the bearing sleeve (41).

4. A motor stator thermal assembly device according to any one of claims 1-3, characterized in that: The inner wall of the conveying pipe (42) is corrugated; and the outlet of the conveying pipe (42) is provided with guide rollers (46) arranged in a ring.

5. The motor stator thermal assembly device according to claim 4, characterized in that: The bearing sleeve (41) is provided with a buffer pad (47) at the contact point with the frame (1); the outer side of the limiting sleeve (22) is provided with a sealing ring (221) that fits against the ends of the cooling sleeve (32) and the heating sleeve (33).

6. The motor stator thermal assembly device according to claim 1, characterized in that: One end of the hot air pipe (35) is located at the top of the inner cavity of the cooling jacket (32), and the other end extends to the bottom of the inner cavity of the heating jacket (33).

7. A motor stator thermal assembly process, based on a motor stator thermal assembly device as described in any one of claims 1-6, characterized in that: Includes the following steps, S1. First, place the shell (5) into the corresponding limiting sleeve (22) on the rotary table (21); at this time, the three limiting sleeves (22) are located at the heating station, the feeding station and the cooling station respectively; S2, the support plate (31) descends, causing the cooling sleeve (32) and heating sleeve (33) to be respectively fitted onto the limiting sleeve (22) of the cooling station and the heating station; S3. The housing (5) inside the heating sleeve (33) is heated. When the housing (5) is heated to the set temperature, the support plate (31) drives the cooling sleeve (32) and the heating sleeve (33) to rise. Then, the turntable (21) rotates, so that each limiting sleeve (22) and the housing (5) inside it rotate to the next station. At this time, the heated housing (5) rotates from the heating station to the feeding station. The housing (5) that was originally located in the cooling station rotates to the heating station. S4. The support plate (31) descends again, and the cooling sleeve (32) and heating sleeve (33) are fitted onto the limiting sleeve (22) of the corresponding station. At the same time, the stator (6) is added into the heated and expanded shell (5) located at the feeding station through the conveying pipe (42) to complete the stator assembly operation and form an assembly. During the assembly process, the heating sleeve (33) continues to heat the newly transferred shell (5) inside. S5. Raise the support plate (31) and rotate the turntable (21). The turntable (21) will rotate the heated shell (5) back to below the support sleeve (41). At this time, a new shell will be inserted below the heating sleeve (33), while the assembly will be located below the cooling sleeve (32). S6. The support plate (31) descends and the air pump (37) is started. Cooling gas enters the cooling jacket (32) through the air supply pipe (34) to remove the heat of the assembly. It is then transported to the heating jacket (33) through the hot air pipe (35) to preheat the shell (5) inside. The gas is discharged through the heating jacket (33) to the air inlet pipe (422). After the gas is heated by the heat exchanger (36) on the air inlet pipe (422), the gas temperature is adjusted. Finally, the gas enters the delivery pipe (42). The delivery pipe (42) keeps the stator (6) inside warm. Finally, the gas completes the circulation under the action of the air pump (37). S7. After the assembly has cooled down, remove the assembly and replace it with a new shell (5) to complete one complete assembly operation. Repeat this process.

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