Double-motor stator hot-jacketing device with compensation function

Abstract

A dual-motor stator heat-shrinking device with compensation function includes a base, a heat-shrinking device mounted on the base, and a heating device. The heat-shrinking device includes a first mounting frame, a first support mechanism for supporting the housing, a second support mechanism mounted on the first mounting frame for supporting the stator, and a pressing mechanism above the first support mechanism. The housing has a first inner hole and a second inner hole. This invention uses the first inner hole of the housing as a unified positioning reference. The second inner support gripper can slide slightly along a fifth slide rail as the housing expands. A displacement sensor collects X-axis offset data in real time, which is transmitted via PLC to a servo module to drive the second clamping assembly to synchronously complete X-axis displacement compensation. This automatically corrects positional deviations caused by uneven expansion of the inner and outer holes after heating the housing, eliminating the need for manual secondary adjustments and completely eliminating alignment deviations between the stator and the housing inner hole caused by thermal expansion. This significantly improves the coaxiality and assembly accuracy of the dual-stator synchronous heat-shrinking.

Description

Technical Field

[0001] This invention relates to the field of stator assembly, and in particular to a dual-motor stator heat fitting device with compensation function. Background Technology

[0002] In the heat-fitting process of motor stators and housings, the housing is often heated to expand its inner bore before the stator is pressed in to achieve an interference fit. Existing dual-motor stator heat-fitting equipment typically uses two sets of internal support fixtures with fixed spacing to position the first and second inner bores of the housing. However, the two inner bores of the housing expand unevenly, causing a slight offset of the second inner bore relative to the first inner bore reference. Existing equipment lacks an automatic compensation structure, and the positional deviation caused by housing expansion cannot be eliminated. This directly results in a misalignment between the second stator and the second inner bore, easily leading to problems such as stator protrusions misaligning with the housing keyway and one-sided scraping during press-fitting. Summary of the Invention

[0003] The problem to be solved by the present invention is to provide a dual-motor stator heat fitting device with compensation function, which can make adaptive adjustments according to the expansion degree of the shell itself, thereby improving the assembly accuracy.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a dual-motor stator heat fitting device with compensation function, including a base, a heat fitting device and a heating device disposed on the base; the heat fitting device includes a first mounting frame, a first support mechanism disposed below the first mounting frame and used to support the housing, a second support mechanism disposed on the first mounting frame and used to support the stator, and a pressing mechanism disposed above the first support mechanism; the housing is provided with a first inner hole and a second inner hole. The first support mechanism includes a first base plate fixed on the base, a first inner support claw disposed on the first base plate and corresponding to a first inner hole, a second inner support claw corresponding to a second inner hole, and a displacement sensor for recording the movement distance of the second inner support claw along the X-axis. The first inner support claw and the second inner support claw are located on the same X-axis. A fifth slide rail is provided on the first base plate along the X-axis direction, and the second inner support claw is slidably connected to the fifth slide rail. The second support mechanism includes a drive cylinder fixed on the first mounting bracket and a load-bearing assembly driven by the drive cylinder; the drive cylinder drives the load-bearing assembly to move along the Y-axis direction; The pressing mechanism includes a first press fixed on a first mounting frame, a first clamping assembly corresponding to a first inner hole and connected to the output end of the first press, a second press, and a second clamping assembly corresponding to a second inner hole and connected to the output end of the second press. The first press and the second press respectively drive the first clamping assembly and the second clamping assembly to move in the Z-axis direction. The first clamping assembly includes a first connecting seat, a first clamping cylinder connected to the first connecting seat via a first bearing, and a first clamping gripper driven by the first clamping cylinder. The second clamping assembly includes a second connecting seat, a second clamping cylinder connected to the second connecting seat via a second bearing, and a second clamping gripper driven by the second clamping cylinder. The second connecting seat has a connecting groove arranged along the X-axis direction, and the output end of the second press extends into the connecting groove. The back of the second connecting seat is connected to the first mounting frame via a driving assembly. The sensor collects the X-axis position data of the second inner clamping gripper and transmits the position signal to the driving assembly. The driving assembly drives the second clamping assembly to move in the X-axis direction according to the data. The heating device includes a second mounting bracket, a heater fixed on the second mounting bracket, and a third support mechanism that carries the housing and transports the housing to the heating station. This invention uses the first inner hole of the housing as a unified positioning reference. The second inner support gripper can slide slightly along the fifth slide rail as the housing expands and shifts. A matching displacement sensor collects X-axis offset data in real time, which is transmitted via PLC to a servo module to drive the second clamping assembly to synchronously complete X-axis displacement compensation. This automatically corrects positional deviations caused by uneven expansion of the inner and outer holes after heating the housing, eliminating the need for manual secondary adjustments and completely eliminating alignment deviations between the stator and the inner hole of the housing due to thermal expansion. This significantly improves the coaxiality and assembly accuracy of the dual-stator synchronous heat-shrink sleeve.

[0005] As an improvement, the supporting component includes a lower fixed plate and an upper floating plate disposed above the lower fixed plate; a guide post is provided between the lower fixed plate and the upper floating plate, the lower end of the guide post is fixed to the lower fixed plate, and the bottom of the upper floating plate is provided with an insertion hole for the upper end of the guide post to be inserted, the insertion hole including a first channel and a second channel from bottom to top, the diameter of the first channel being smaller than the diameter of the second channel; the upper end of the guide post is inserted into the insertion hole and includes a first guide portion that cooperates with the first channel and a second guide portion that cooperates with the second channel; a spring is sleeved on the outside of the guide post, the upper end of the spring is connected to the bottom of the upper floating plate, and the lower end of the spring is connected to the guide post or the lower fixed plate.

[0006] As an improvement, the first mounting bracket is provided with a fourth slide rail arranged along the Y-axis, and the lower fixing plate is slidably engaged with the fourth slide rail; the lower fixing plate is connected to the output end of the drive cylinder.

[0007] As an improvement, both the first and second bearings are provided with a pin cylinder for locking rotation and a locking hole for inserting a pin from the pin cylinder.

[0008] As an improvement, cooling nozzles are provided on the outside of both the first and second clamping cylinders.

[0009] As an improvement, the drive assembly includes a servo module fixed on a first mounting bracket and a third slide rail arranged along the X-axis direction, a connecting plate driven by the servo module and slidingly engaged with the third slide rail, and the connecting plate is connected to a second clamping assembly.

[0010] As an improvement, the connecting plate is provided with a second slide rail arranged along the Z-axis direction, and the second connecting seat slides in cooperation with the second slide rail.

[0011] As an improvement, the first mounting bracket is provided with a first slide rail arranged along the Z-axis direction, and the first connecting seat slides in cooperation with the first slide rail.

[0012] As an improvement, a heating station is formed on the outside of the heating coil of the heater, and a limiting post is provided on the second mounting bracket to abut against the housing. The limiting post is located on the outside of the heating coil.

[0013] As an improvement, the third support mechanism is located below the heating station. The third support mechanism includes a second base plate fixed on the base, a lifting cylinder fixed on the second base plate, and a lifting plate on the second base plate. The lifting plate is driven by the lifting cylinder to move up and down in the Z-axis direction.

[0014] The beneficial effects of this invention are as follows: This invention achieves automatic lifting, positioning, and heating of the housing through multiple independent heating devices coupled with a third supporting mechanism. After heating, the robot automatically transports the housing to the heat-fitting station. The entire process of stator loading, gripping, position compensation, pressing, and cooling is completed automatically, eliminating the need for manual positioning and adjustment, reducing labor intensity, and adapting to batch continuous production. Simultaneously, this invention uses the first inner hole of the housing as a unified positioning reference. The second inner support gripper can slide slightly along the fifth slide rail as the housing expands and shifts. A displacement sensor collects X-axis offset data in real time, which is transmitted via PLC to the servo module to drive the second clamping component to synchronously complete X-axis displacement compensation. This automatically corrects positional deviations caused by uneven expansion of the inner and outer holes after heating, eliminating the need for manual secondary adjustments and completely eliminating stator-housing inner hole alignment deviations caused by thermal expansion, significantly improving the coaxiality and assembly accuracy of the dual-stator synchronous heat-fitting. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2This is a three-dimensional structural diagram of the heat-shrink device.

[0017] Figure 3 This is a front view of the heat-shrinking device.

[0018] Figure 4 A schematic diagram of the three-dimensional structure to conceal the first supporting mechanism.

[0019] Figure 5 This is a three-dimensional structural diagram of the second support mechanism.

[0020] Figure 6 This is a cross-sectional view of the second support mechanism.

[0021] Figure 7 This is a three-dimensional structural diagram of the first supporting mechanism.

[0022] Figure 8 This is a three-dimensional structural diagram of the heating device.

[0023] Figure 9 This is a three-dimensional structural diagram of the third supporting mechanism.

[0024] Figure 10 This is a schematic diagram of the three-dimensional structure of the stator.

[0025] Figure 11 This is a schematic diagram of the three-dimensional structure of the shell.

[0026] Explanation of the labels in the diagram: 1. Base; 2. First mounting bracket; 21. First press; 22. Second press; 23. Drive assembly; 231. Servo module; 232. Connecting plate; 3. First clamping assembly; 31. First connecting seat; 32. First bearing; 33. First clamping gripper; 4. Second clamping assembly; 41. Second connecting seat; 42. Second bearing; 43. Second clamping gripper; 5. Second supporting mechanism; 51. Lower fixed plate; 52. Upper floating plate; 521 53. Socket; 531. Guide post; 54. Spring; 55. Drive cylinder; 6. First support mechanism; 61. First base plate; 62. First inner support gripper; 63. Second inner support gripper; 64. Fifth slide rail; 65. Displacement sensor; 7. Second mounting bracket; 71. Heater; 711. Heating coil; 72. Limit post; 8. Third support mechanism; 81. Second base plate; 82. Lifting plate; 83. Lifting cylinder; 9. Stator; 91. Housing; 911. Keyway. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] As shown in Figure 1, a dual-motor stator heat-shrinking device with compensation function includes a base 1, a heat-shrinking device and a heating device disposed on the base 1. The heat-shrinking device includes a first mounting frame 2, a first support mechanism 6 disposed below the first mounting frame 2 and used to support the housing 91, a second support mechanism 5 disposed on the first mounting frame 2 and used to support the stator 9, and a pressing mechanism disposed above the first support mechanism 6. The housing 91 is provided with a first inner hole and a second inner hole, and a heat-shrinking station is formed at the first support mechanism 6.

[0029] like Figure 7 , 10 As shown in Figure 11, the first support mechanism 6 includes a first base plate 61 fixed on the base 1, a first inner support claw 62 disposed on the first base plate 61 and corresponding to the first inner hole, a second inner support claw 63 corresponding to the second inner hole, and a displacement sensor 65 for recording the X-axis movement distance of the second inner support claw 63. The first inner support claw 62 and the second inner support claw 63 are located on the same X-axis. A fifth slide rail 64 disposed along the X-axis is fixed on the first base plate 61. The second inner support claw 63 is slidably connected to the fifth slide rail 64, and the sliding resistance between the two is small, which can realize the micro-adaptive sliding of the second inner support claw 63.

[0030] like Figure 2 , 3As shown in Figures 4 and 7, the pressing mechanism includes a first press 21 and a second press 22 fixed on the first mounting frame 2, a first clamping assembly 3 corresponding to the first inner hole and connected to the output end of the first press 21, and a second clamping assembly 4 corresponding to the second inner hole and connected to the output end of the second press 22. The first clamping assembly 3 includes a first connecting seat 31, a first clamping cylinder connected to the first connecting seat 31 via a first bearing 32, and a first clamping gripper 33 driven by the first clamping cylinder. The first clamping gripper 33 and the first inner support gripper 62 are coaxially arranged along the Z-axis direction. A first slide rail is fixed on the first mounting frame 2 and arranged along the Z-axis direction. The first connecting seat 31 is slidably engaged with the first slide rail. The first press 21 drives the first connecting seat 31 to move along the Z-axis direction. The second clamping assembly 4 includes a second connecting seat 41 and a second clamping assembly 42 connected to the second connecting seat 41 via a second bearing 42. The second clamping cylinder is connected to the second clamping gripper 43 driven by the second clamping cylinder; the back of the second connecting seat 41 is connected to the first mounting frame 2 via a drive assembly 23. The drive assembly 23 includes a servo module 231 fixed on the first mounting frame 2 and a third slide rail arranged along the X-axis direction, a connecting plate 232 driven by the servo module 231 and slidingly engaged with the third slide rail, and a second slide rail arranged along the Z-axis direction and slidingly engaged with the second connecting seat 41 on the front side of the connecting plate 232; the servo module 231 drives the connecting plate 232 to move in the X-axis direction, and the second clamping assembly 4 then follows the connecting plate 232 to move in the X-axis direction; the second press 22 drives the second clamping assembly 4 to move along the Z-axis direction.

[0031] After the housing 91 is placed on the first base plate 61, the first inner support claw 62 corresponds to the first inner hole and opens and fixes the housing 91. With the first inner hole as the reference, the second inner support claw 63 corresponds to the second inner hole and gradually opens. Due to the non-ideal uniform expansion error of the housing 91 after heating, the second inner support claw 63 adapts to the actual offset position of the second inner hole with the first inner hole as the reference during the opening process. The housing 91 will also generate a certain counter-pushing force on the second inner support claw 63, so that the second inner support claw 63 slides along the fifth slide rail 64 until the second inner support claw 63 is opened in place and the displacement sensor 65 value is stable without fluctuation, and then the action stops. The displacement sensor 65 detects the displacement offset of the second inner support claw 63 on the X-axis and transmits the signal to the servo module 231 through the PLC. The servo module 231 then drives the second clamping component 4 to perform displacement compensation in the X-axis direction. To ensure the second press 22 can stably drive the second clamping assembly 4 even after the second clamping assembly 4 has moved, the second connecting seat 41 is provided with a connecting groove along the X-axis. The output end of the second press 22 extends into the connecting groove, and the dimension of the connecting groove along the X-axis is larger than the dimension of the output end of the second press 22 along the X-axis. The heating expansion error of the housing 91 is within a slight deviation within the standard range, so that the second inner support claw 63 only produces a small X-axis offset, and the second clamping assembly 4 will not disengage from the transmission engagement of the output end of the second press 22 due to excessive offset. The first clamping cylinder and the second clamping cylinder are both connected to the first connecting seat 31 and the second connecting seat 41 respectively through a bearing structure, so that the clamping cylinder and the clamping claw can produce a slight angular adaptive deflection during the stator 9 entering the housing, thereby reducing the rigid collision of the stator 9 during the housing process and facilitating the adaptive adjustment of the protrusions on the stator 9 into the keyway 911 inside the housing 91. Both the first bearing 32 and the second bearing 42 are equipped with a pin cylinder for locking their rotation and a locking hole for inserting a pin from the pin cylinder. The pin cylinder drives the pin to insert into the locking hole to lock the first bearing 32 or the second bearing 42. Except for the process of aligning the stator 9 with the keyway 911, the bearing remains locked under all other operating conditions to ensure the clamping and positioning accuracy of the stator 9. Cooling nozzles are provided on the outside of both the first and second clamping cylinders to facilitate timely cooling and pressure maintenance after the stator 9 is installed in the housing.

[0032] like Figure 2 , 5As shown in Figure 6, the second supporting mechanism 5 includes a drive cylinder 54 fixed on the first mounting bracket 2 and a bearing assembly driven by the drive cylinder 54. The drive cylinder 54 drives the bearing assembly to move along the Y-axis. The bearing assembly includes a lower fixed plate 51 and an upper floating plate 52 disposed above the lower fixed plate 51. A guide post 53 is provided between the lower fixed plate 51 and the upper floating plate 52. The lower end of the guide post 53 is fixed on the lower fixed plate 51. The bottom of the upper floating plate 52 is provided with an insertion hole 521 for the upper end of the guide post 53 to be inserted. The insertion hole 521 includes a first channel and a second channel from bottom to top. The diameter of the first channel is smaller than the diameter of the second channel. The upper end of the guide post 53 is inserted into the insertion hole 521 and slidably connected to the insertion hole 521. The guide post 53 includes a first guide portion that cooperates with the first channel and a second guide portion that cooperates with the second channel. A spring 531 is fitted on the outer side. The upper end of the spring 531 is connected to the bottom of the upper floating plate 52, and the lower end of the spring 531 is connected to the guide post 53 or the lower fixed plate 51. The bottom of the upper floating plate 52 is provided with four guide posts 53, which are respectively set at the four corners. The upper floating plate 52 is provided with a receiving groove to support the stator 9, and two stators 9 correspond to two upper floating plates 52. Through the cooperation of the guide posts 53, the stepped insertion hole 521 and the spring 531, the impact force of the gripper contacting the stator 9 when it moves downward can be effectively buffered, and the damage to the stator 9 caused by rigid collision can be completely avoided. The first mounting bracket 2 is provided with a fourth slide rail arranged along the Y-axis. The lower fixed plate 51 is slidably engaged with the fourth slide rail, and the lower fixed plate 51 is connected to the output end of the drive cylinder 54.

[0033] As shown in Figures 1, 8, and 9, the present invention is provided with multiple sets of heating devices. The heating devices include a second mounting bracket 7 fixed on the base 1, a heater 71 fixed on the second mounting bracket 7, and a third supporting mechanism 8 that carries the housing 91 and transports the housing 91 to the heating station. The heating coil 711 on the heater 71 forms a heating station on its outer side. The two inner holes on the housing 91 correspond to two sets of heating coils 711. The second mounting bracket 7 is provided with limiting posts 72 for abutting the housing 91. The limiting posts 72 are evenly distributed on the outer side of the heating coils 711. The third supporting mechanism 8 transports the housing 91 to the heating station and makes the housing 91 abut against the limiting posts 72. The third support mechanism 8 is located below the heating station. The third support mechanism 8 includes a second base plate 81 fixed on the base 1, a lifting cylinder 83 fixed on the second base plate 81, and a lifting plate 82 located on the second base plate 81 for supporting the housing 91. The lifting plate 82 moves up and down along the Z-axis under the drive of the lifting cylinder 83.

[0034] The workflow of this invention is as follows: The housing 91 is placed on the lifting plate 82. The lifting cylinder 83 drives the lifting plate 82 to lift the housing 91 until it abuts against the limiting post 72 and reaches the heating position. The driving cylinder 54 pushes the bearing assembly below the pressing mechanism, placing the two stators 9 on the upper floating plate 52. The first press 21 and the second press 22 respectively drive the first clamping assembly 3 and the second clamping assembly 4 to move above the stators 9. During this process, the guide post 53, the stepped insertion hole 521, and the spring 531 work together to buffer and prevent rigid contact between the clamping grippers and the stators 9. The first clamping cylinder and the second clamping cylinder respectively drive the first clamping gripper 33 and the second clamping gripper 43 to grip the two stators 9. The first press 21 and the second press 22 respectively drive the first clamping assembly 3 and the second clamping assembly 4 to move upward along the Z-axis. After the housing 91 is heated, the housing 91... Following the resetting of the lifting plate 82, the robot gripper grasps the housing 91 and places the housing 91 on the first base plate 61 of the heat fitting station.

[0035] The first inner support gripper 62 corresponds to the first inner hole and supports and fixes the housing 91. Taking the first inner hole as a reference, the second inner support gripper 63 slowly opens. Since the housing 91 will expand during the heating process, and the expansion has a certain degree of unevenness, the second inner hole itself undergoes adaptive adjustment during the inner support process of the second inner support gripper 63. At the same time, the housing 91 gives the second inner support gripper 63 a reaction force, so that the second inner support gripper 63 slides on the fifth slide rail 64 according to the adaptive adjustment. When the value of the displacement sensor 65 stabilizes and no longer changes, the movement stops. The displacement sensor 65 records the center value of the second inner hole and transmits the displacement to the drive component 23 through the PLC. The servo module 231 then drives the second clamping component 4 to make compensating movement in the X-axis direction according to the displacement data, so that the clamped stator 9 is accurately aligned with the offset inner hole of the housing 91, eliminating the assembly error caused by the heating expansion of the housing 91. The first press 21 and the second press 22 drive the two stators 9 to descend again. Once they are close to the housing 91, the pins in the locking holes are removed, allowing the first clamping assembly 3 and the second clamping assembly 4 to rotate slightly. This allows the protrusions on the stators 9 to stably enter the keyway 911 of the housing 91, avoiding scratches and collisions caused by rigid docking. Finally, the synchronous heat fitting of the two stators 9 is completed.

[0036] This invention achieves automatic lifting, positioning, and heating of the housing through multiple independent heating devices and a third supporting mechanism. After heating, the robot automatically transports the housing to the heat-fitting station. The entire process of stator loading, gripping, position compensation, pressing, and cooling is completed automatically, eliminating the need for manual positioning and adjustment, reducing labor intensity, and adapting to batch continuous production. Simultaneously, this invention uses the first inner hole of the housing as a unified positioning reference. The second inner support gripper can slide slightly along the fifth slide rail as the housing expands. A displacement sensor collects X-axis offset data in real time, which is transmitted via PLC to the servo module to drive the second clamping component to synchronously complete X-axis displacement compensation. This automatically corrects positional deviations caused by uneven expansion of the inner and outer holes after heating, eliminating the need for manual secondary adjustments and completely eliminating stator-housing inner hole alignment deviations caused by thermal expansion, significantly improving the coaxiality and assembly accuracy of the dual-stator synchronous heat-fitting.

Claims

1. A dual-motor stator heat-shrinking device with compensation function, comprising a base, a heat-shrinking device disposed on the base, and a heating device; characterized in that: The heat fitting device includes a first mounting frame, a first support mechanism located below the first mounting frame and used to support the housing, a second support mechanism located on the first mounting frame and used to support the stator, and a pressing mechanism located above the first support mechanism. The housing is provided with a first inner hole and a second inner hole. The first support mechanism includes a first base plate fixed on the base, a first inner support claw disposed on the first base plate and corresponding to a first inner hole, a second inner support claw corresponding to a second inner hole, and a displacement sensor for recording the movement distance of the second inner support claw along the X-axis. The first inner support claw and the second inner support claw are located on the same X-axis. A fifth slide rail is provided on the first base plate along the X-axis direction, and the second inner support claw is slidably connected to the fifth slide rail. The second support mechanism includes a drive cylinder fixed on the first mounting bracket and a load-bearing assembly driven by the drive cylinder; the drive cylinder drives the load-bearing assembly to move along the Y-axis direction; The pressing mechanism includes a first press fixed on a first mounting frame, a first clamping assembly corresponding to a first inner hole and connected to the output end of the first press, a second press, and a second clamping assembly corresponding to a second inner hole and connected to the output end of the second press. The first press and the second press respectively drive the first clamping assembly and the second clamping assembly to move in the Z-axis direction. The first clamping assembly includes a first connecting seat, a first clamping cylinder connected to the first connecting seat via a first bearing, and a first clamping gripper driven by the first clamping cylinder. The second clamping assembly includes a second connecting seat, a second clamping cylinder connected to the second connecting seat via a second bearing, and a second clamping gripper driven by the second clamping cylinder. The second connecting seat has a connecting groove arranged along the X-axis direction, and the output end of the second press extends into the connecting groove. The back of the second connecting seat is connected to the first mounting frame via a driving assembly. The sensor collects the X-axis position data of the second inner clamping gripper and transmits the position signal to the driving assembly. The driving assembly drives the second clamping assembly to move in the X-axis direction according to the data. The heating device includes a second mounting frame, a heater fixed on the second mounting frame, and a third support mechanism that carries the housing and transports the housing to the heating station.

2. The dual-motor stator heat-shrinking device with compensation function according to claim 1, characterized in that: The supporting assembly includes a lower fixed plate and an upper floating plate disposed above the lower fixed plate; a guide post is provided between the lower fixed plate and the upper floating plate, the lower end of the guide post is fixed to the lower fixed plate, and the bottom of the upper floating plate is provided with an insertion hole for the upper end of the guide post to be inserted, the insertion hole including a first channel and a second channel from bottom to top, the diameter of the first channel being smaller than the diameter of the second channel; the upper end of the guide post is inserted into the insertion hole and includes a first guide portion that cooperates with the first channel and a second guide portion that cooperates with the second channel; a spring is sleeved on the outside of the guide post, the upper end of the spring is connected to the bottom of the upper floating plate, and the lower end of the spring is connected to the guide post or the lower fixed plate.

3. The dual-motor stator heat-shrinking device with compensation function according to claim 2, characterized in that: The first mounting bracket is provided with a fourth slide rail arranged along the Y-axis, and the lower fixing plate is slidably engaged with the fourth slide rail; the lower fixing plate is connected to the output end of the drive cylinder.

4. The dual-motor stator heat-shrinking device with compensation function according to claim 1, characterized in that: Both the first and second bearings are provided with a pin cylinder for locking rotation and a locking hole for inserting a pin from the pin cylinder.

5. The dual-motor stator heat-shrinking device with compensation function according to claim 1, characterized in that: Both the first clamping cylinder and the second clamping cylinder are equipped with cooling nozzles on their outer sides.

6. The dual-motor stator heat-shrinking device with compensation function according to claim 1, characterized in that: The drive assembly includes a servo module fixed on a first mounting bracket and a third slide rail arranged along the X-axis, a connecting plate driven by the servo module and slidingly engaged with the third slide rail, and the connecting plate is connected to a second clamping assembly.

7. The dual-motor stator heat-shrinking device with compensation function according to claim 6, characterized in that: The connecting plate is provided with a second slide rail arranged along the Z-axis, and the second connecting seat slides in cooperation with the second slide rail.

8. The dual-motor stator heat-shrinking device with compensation function according to claim 1, characterized in that: The first mounting bracket is provided with a first slide rail arranged along the Z-axis, and the first connecting seat slides in cooperation with the first slide rail.

9. The dual-motor stator heat-shrinking device with compensation function according to claim 1, characterized in that: A heating station is formed outside the heating coil of the heater, and a limiting post is provided on the second mounting bracket to abut against the housing. The limiting post is located outside the heating coil.

10. The dual-motor stator heat-shrinking device with compensation function according to claim 9, characterized in that: The third support mechanism is located below the heating station. The third support mechanism includes a second base plate fixed on the base, a lifting cylinder fixed on the second base plate, and a lifting plate on the second base plate. The lifting plate is driven by the lifting cylinder to move up and down in the Z-axis direction.

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