Stator shrink-fit device and method

Abstract

This invention relates to a stator heat-shrinking device and method, comprising a base, a housing storage station on the base, a label coding mechanism on the base, and a stator assembly mechanism on the base. The stator assembly mechanism includes a label code recognition mechanism, a heating mechanism, a pressing mechanism, a cooling mechanism, and a conveying mechanism. The conveying mechanism transports the housing sequentially through the label code recognition mechanism, the heating mechanism, the pressing mechanism, and the cooling mechanism. The base also includes a stator feeding mechanism for feeding the pressing mechanism. A defective product recycling station is also provided on the base. A robotic arm on the base transports housings between the housing storage station, the label coding mechanism, and the conveying mechanism. The robotic arm also transports defective housings to the defective product recycling station. A QR code label is engraved on the housing by the label coding mechanism for easy traceability. The robotic arm, heating mechanism, stator assembly mechanism, and stator feeding mechanism thus achieve automated assembly of the stator heat-shrinking device.

Description

Technical Field

[0001] This invention relates to the field of motor stator assembly, and more specifically, to a stator heat fitting device and method. Background Technology

[0002] In the general field of drive mechanism manufacturing, the stator and drive mechanism housing are usually positioned by visual inspection during the stator heat fitting process. Operators wearing asbestos gloves then take out the drive mechanism housing heated by the high-frequency heat fitting machine and fit it onto the stator.

[0003] Because the heated drive mechanism housing reaches a high temperature, it can easily burn operators, posing a safety hazard. Furthermore, manual operation is inefficient. During turning and hoisting, impacts can easily occur, causing deformation and rendering the workpiece unusable. The installed stator and drive mechanism housing cannot guarantee proper installation position and coaxiality, resulting in a low pass rate and affecting the use of the drive mechanism. Additionally, the source of defective products cannot be traced. Summary of the Invention

[0004] To address the aforementioned deficiencies in the prior art, a stator heat fitting device and method are provided.

[0005] The technical solution adopted by this invention to solve its technical problem is: a stator heat fitting device, including a base, a housing storage station on the base, a label coding mechanism on the base, a stator assembly mechanism on the base, the stator assembly mechanism including a label code recognition mechanism, a heating mechanism, a pressing mechanism, a cooling mechanism and a conveying mechanism, the conveying mechanism conveying the housing sequentially through the label code recognition mechanism, the heating mechanism, the pressing mechanism and the cooling mechanism, the base also having a stator feeding mechanism for feeding materials onto the pressing mechanism, a defective product recycling station on the base, and a robotic arm on the base for conveying housings between the housing storage station, the label coding mechanism and the conveying mechanism, the robotic arm also conveying defective housings to the defective product recycling station.

[0006] Preferably, the stator feeding mechanism includes a belt conveyor, a guide anti-misalignment plate, a first carrying plate, and a second carrying plate. The first carrying plate and the second carrying plate constitute a bearing plate, which is located directly above the pressing mechanism. The belt conveyor feeds the stator onto the top surface of the bearing plate. The guide anti-misalignment plate is located directly above the belt conveyor and the bearing plate, and it causes the stator to enter the bearing plate in a specific posture. A first support frame is provided on the base to support the belt conveyor and the guide anti-misalignment plate. Two first cylinders are provided on the guide anti-misalignment plate to drive the first carrying plate and the second carrying plate away from each other. Multiple guide posts are provided above the guide anti-misalignment plate, passing through the guide anti-misalignment plate, the stator, and the bearing plate. A second cylinder is provided above the first support frame above the guide anti-misalignment plate to drive the guide posts to move up and down.

[0007] Preferably, the top of the stator is provided with two sliding grooves and a protrusion. The bottom surface of the guide anti-misalignment plate is provided with an avoidance sliding groove extending along the conveying direction of the belt conveyor and two guide rails. The avoidance sliding groove avoids the protrusion, and the two guide rails are inserted into the corresponding sliding grooves.

[0008] Preferably, the upper surfaces of the first and second load plates are provided with limiting protrusions located on the side away from the belt conveyor. The belt of the belt conveyor is provided with multiple actuating plates at equal intervals. The first and second load plates are provided with first clearance notches to avoid the actuating plates. The first and second load plates are also provided with second clearance notches to avoid the guide posts.

[0009] Preferably, the pressing mechanism includes a slide cylinder, an inner support chuck, a third cylinder, and a baffle. The third cylinder is located above the conveying mechanism. A second support frame supporting the third cylinder is provided on the base. The output end of the third cylinder is connected to a lifting plate. The inner support chuck is located on the bottom surface of the lifting plate. The baffle is elastically telescopically located on the bottom surface of the lifting plate. The baffle has a ring structure. The inner support chuck is located inside the inner ring of the baffle. A lifting mechanism for lifting the stator is also provided on the base directly below the inner support chuck. The slide cylinder is located directly below the bearing plate. The slide cylinder conveys the stator directly below the inner support chuck. A fixture for carrying the stator is provided on the slide cylinder directly below the bearing plate. The fixture is provided with multiple limiting posts that abut against and are coaxial with the corresponding guide posts. A third support frame supporting the slide cylinder is provided on the base.

[0010] Preferably, the conveying mechanism includes a drive mechanism and a turntable. The drive mechanism is mounted on a base, and the turntable is mounted on the drive mechanism. The turntable has four loading through holes for loading the housing at equal intervals along its circumference. The heating mechanism, pressing mechanism, cooling mechanism, and robotic arm are arranged at intervals along the circumference of the turntable. The heating mechanism, pressing mechanism, and cooling mechanism are located directly above any three loading through holes. The label recognition mechanism is a barcode scanner. A turntable through hole is provided at the center of the turntable, and the barcode scanner extends through the turntable through hole with its lens facing the remaining loading through hole.

[0011] Preferably, the heating mechanism includes a vertical linear slide and a high-frequency heater, wherein the linear slide is mounted on a base and the high-frequency heater is mounted on the linear slide.

[0012] Preferably, the cooling mechanism includes a fan and a fourth support frame, the fourth support frame being mounted on the base and the fan being mounted on the fourth support frame.

[0013] Preferably, the label coding mechanism includes a laser coding machine, a smoke extraction machine, a cylinder-type conveyor, and a cover. The laser coding machine, the smoke extraction machine, and the cylinder-type conveyor are all mounted on a base. The cover is mounted on the base and covers one end of the cylinder-type conveyor in the conveying direction. The output end of the laser coding machine extends into the cover, and the smoke extraction pipe of the smoke extraction machine also extends into the cover.

[0014] An NTC soldering and testing method, the method comprising the following steps:

[0015] S101, the robotic arm transports the housing from the housing storage station to the label coding mechanism, which then engraves QR code labels on the housing.

[0016] S102, the robotic arm transports the casing with the QR code engraved onto the conveying mechanism, which then transports the casing to the label code recognition mechanism. The label code recognition mechanism scans the QR code on the casing on the conveying mechanism.

[0017] S103, the robotic arm transports the unqualified casings that are scanned by QR code to the defective product recycling station, and the conveying mechanism transports the qualified casings to the heating mechanism. The heating mechanism heats the casings, causing them to expand due to heat.

[0018] S104, the conveying mechanism transports the housing heated to the set temperature to the position of the pressing mechanism. At this time, the stator feeding mechanism has already fed the stator onto the pressing mechanism, and the pressing mechanism then installs the stator into the housing.

[0019] S105, the conveying mechanism transports the housing with the stator installed to the position of the cooling mechanism. The cooling mechanism cools the housing, causing the housing to shrink and allowing the stator and housing to have an interference fit.

[0020] S106, the conveying mechanism transports the cooled casing back to the position of the tag code recognition mechanism, at which point the robot arm transports the casing to the next processing station.

[0021] The beneficial effects of this invention are as follows: QR code labels are engraved on the housing by the label coding mechanism, which facilitates the traceability of defective products or defective finished products of the drive mechanism in subsequent processing. At the same time, the housing is transported by a robotic arm, the housing is heated by a heating mechanism, and then the stator is installed into the heated housing by a stator assembly mechanism and a stator feeding mechanism, thereby realizing the automated assembly of the stator heat sleeve and greatly improving the assembly efficiency. Attached Figure Description

[0022] Figure 1 This is a top view of the overall structure of an embodiment of the present invention;

[0023] Figure 2 This is an embodiment of the present invention. Figure 1 Enlarged view of region A in the middle;

[0024] Figure 3 This is a schematic diagram of the stator feeding mechanism from one perspective according to an embodiment of the present invention;

[0025] Figure 4 This is an embodiment of the present invention. Figure 3 Enlarged view of region B in the middle;

[0026] Figure 5 This is an embodiment of the present invention. Figure 3 Enlarged diagram of region C in the middle;

[0027] Figure 6 This is a schematic diagram of the overall side view structure of an embodiment of the present invention;

[0028] Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged schematic diagram of region D in the middle;

[0029] Figure 8 This is a schematic diagram of the stator feeding mechanism removed from an embodiment of the present invention;

[0030] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged schematic diagram of region E in the middle;

[0031] Figure 10 This is a schematic diagram of the stator feeding mechanism according to an embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of the first and second carrier plates in an embodiment of the present invention.

[0033] Reference numerals: 1. Base; 10. Housing storage station; 2. Label coding mechanism; 20. Laser coding machine; 21. Smoke extraction machine; 22. Cylinder-type conveyor; 23. Cover; 3. Stator assembly mechanism; 30. Label code recognition mechanism; 31. Heating mechanism; 310. Linear slide; 311. High-frequency heating machine; 32. Pressing mechanism; 320. Slide cylinder; 321. Fixture; 322. Limiting post; 323. Internal support chuck; 324. Third cylinder; 325. Baffle; 326. Second support frame; 327. Lifting plate; 328. Lifting mechanism; 329. Third support frame; 3 3 Cooling mechanism, 330 Fan, 331 Fourth support frame, 34 Conveying mechanism, 340 Drive mechanism, 341 Turntable, 342 Loading through hole, 4 Stator feeding mechanism, 40 Belt conveyor, 400 Actuating plate, 41 Guide anti-fool plate, 410 Avoidance chute, 411 Guide slide rail, 42 First carrying plate, 43 Second carrying plate, 44 Limiting protrusion, 45 First avoidance notch, 46 Second avoidance notch, 47 First support frame, 48 First cylinder, 49 Guide column, 490 Second cylinder, 5 Defective product recycling station, 6 Robot arm. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention. In addition, the directional terms mentioned in the present invention, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying illustrations. The use of directional terms is for better and clearer explanation and understanding of the present invention, and is not intended to indicate or imply any necessary orientation of the present invention, and therefore should not be construed as a limitation of the present invention.

[0035] Examples of embodiments of the present invention Figures 1 to 11 As shown, a stator heat fitting device and method includes a base 1, on which a housing storage station 10 is provided, located on the right front side of the upper surface of the base 1. A label coding mechanism 2 is provided on the base 1, located directly behind the housing storage station 10 on the top surface of the base 1. A stator assembly mechanism 3 is provided on the base 1, located on the left rear side of the top surface of the base 1. The stator assembly mechanism 3 includes a label code recognition mechanism 30, a heating mechanism 31, a pressing mechanism 32, a cooling mechanism 33, and a conveying mechanism 34. The conveying mechanism 34 conveys the machine casing sequentially through the label code identification mechanism 30, the heating mechanism 31, the pressing mechanism 32, and the cooling mechanism 33. The base 1 is also equipped with a stator feeding mechanism 4 for feeding material onto the pressing mechanism 32. The base 1 is equipped with a defective product recycling station 5, which is located on the top surface of the base 1 directly to the left of the machine casing storage station 10. The base 1 is also equipped with a robotic arm 6 that transports machine casings between the machine casing storage station 10, the label coding mechanism 2, and the conveying mechanism 34. The robotic arm 6 also transports defective machine casings to the defective product recycling station 5.

[0036] Further improvements, such as Figure 10 and Figure 11As shown, the stator feeding mechanism 4 includes a belt conveyor 40, a guide anti-misalignment plate 41, a first carrying plate 42, and a second carrying plate 43. The first carrying plate 42 and the second carrying plate 43 constitute a support plate, which is symmetrical in the left-right direction. The support plate is located directly above the pressing mechanism 32. The belt conveyor 40 conveys the stator onto the top surface of the support plate. The belt conveyor 40 extends in the front-back direction, and the support plate is located directly behind the belt conveyor 40. The guide anti-misalignment plate 41 is located directly above the belt conveyor 40 and the support plate, that is, the guide anti-misalignment plate extends along the front-back direction of the belt conveyor 40, and the rear end of the guide anti-misalignment plate 41 is located directly above the support plate. The guide anti-misalignment plate 41 ensures that the stator enters the support plate in a specific posture, and at the same time, it ensures that when the operator puts the stator into the belt conveyor 40, it can only enter the belt conveyor 40 in a specific posture, without the need for subsequent adjustment of the stator's posture, thus playing a mistake-proofing role. The base 1 is provided with a support for the belt conveyor 40. The guide anti-misalignment plate 41 has a first support frame 47. The guide anti-misalignment plate 41 is equipped with two first cylinders 48 that drive the first load plate 42 and the second load plate 43 away from each other. Above the guide anti-misalignment plate 41, multiple guide posts 49 pass through the guide anti-misalignment plate 41, the stator, and the load plate. The stator has four positioning holes, and four guide posts 49 are correspondingly provided. Above the guide anti-misalignment plate 41, the first support frame 47 is equipped with a second cylinder 490 that drives the guide posts 49 to move up and down. The output end of cylinder 490 is connected to a mounting plate, and four guide posts 49 are set on the bottom surface of the mounting plate. After the stator enters the support plate, the second cylinder 490 drives the guide posts 49 to move down and insert into the corresponding positioning holes on the stator. Then, the two first cylinders 48 drive the first carrier plate 42 and the second carrier plate 43 to move away from each other. Finally, the stator slides down the guide posts 49 in a specific posture onto the pressing mechanism 32, that is, the stator is fed onto the pressing mechanism 32 in a specific posture, and the stator does not need to be manually adjusted by the worker afterward.

[0037] Further improvements, such as Figure 4 , Figure 10 and Figure 11As shown, the top of the stator is provided with two sliding grooves, which are located on the left and right sides of the top surface of the stator respectively. The top of the stator is also provided with a protrusion, which is located between the two sliding grooves and is closer to one of the sliding grooves. The bottom surface of the guide anti-fool plate 41 is provided with an avoidance sliding groove 410 extending along the conveying direction of the belt conveyor 40 and two guide rails 411. The avoidance sliding groove 410 avoids the protrusion, that is, the protrusion slides in the avoidance sliding groove 410. The two guide rails 411 are inserted into the corresponding sliding grooves. The guide rails 411 cooperate with the sliding grooves to keep the stator's posture unchanged when it moves on the belt conveyor 40. The protrusion and the avoidance sliding groove 410 ensure that the stator can only be placed on the belt conveyor 40 in a specific posture, which plays a role in preventing fooling. The upper surface of the first carrier plate 42 and the upper surface of the second carrier plate 43 are both provided with a limiting protrusion 4 located on the side away from the belt conveyor 40. 4. The two limiting protrusions 44 are inclined surfaces near the belt conveyor 40. The two inclined surfaces slope from the side where the two limiting protrusions 44 are far apart to the side where the two limiting protrusions 44 abut against each other. Multiple actuating plates 400 are evenly spaced on the belt of the belt conveyor 40. The actuating plates 400 transport the stator to the bearing plate composed of the first carrying plate 42 and the second carrying plate 43. At the same time, the actuating plates 400 cooperate with the limiting protrusions 44 to transport the stator to a specific position, so as to facilitate the insertion of the guide post 49 into the positioning hole on the stator. The first carrying plate 42 and the second carrying plate 43 are both provided with a first clearance notch 45 to avoid the actuating plates 400. The first carrying plate 42 and the second carrying plate 43 are also provided with a second clearance notch 46 to avoid the guide post 49. The second clearance notch 46 avoids the guide post 49 when the first carrying plate 42 and the second carrying plate 43 are far apart.

[0038] Further improvements, such as Figure 4 and Figure 7As shown, the pressing mechanism 32 includes a sliding cylinder 320, an inner support chuck 323, a third cylinder 324, and a baffle 325. The third cylinder 324 is located above the conveying mechanism 34 and to the upper right of the guide anti-fouling plate 41. A second support frame 326 supporting the third cylinder 324 is provided on the base 1. The output end of the third cylinder 324 is connected to a lifting plate 327. The inner support chuck 323 is disposed on the bottom surface of the lifting plate 327. The baffle 325 is elastically and telescopically disposed on the bottom surface of the lifting plate 327. The baffle 325 has a ring structure, and the inner support chuck 323 is located within the inner ring of the baffle 325. A lifting mechanism 3 for lifting the stator is also provided directly below the inner support chuck 323 on the base 1. 28. The lifting mechanism 328 lifts the housing and presses down the stator with the inner support chuck 323, thereby installing the stator into the housing. The slide cylinder 320 is located directly below the support plate and extends in the left and right direction. The slide cylinder 320 conveys the stator directly below the inner support chuck 323. The inner support chuck 323 is located to the upper right of the slide cylinder 320. The slide cylinder 320 is provided with a fixture 321 for carrying the stator at a position directly below the support plate. The fixture 321 is provided with four limiting posts 322 that abut against the corresponding guide posts 49 and are coaxial. The guide posts 49 move downward under the drive of the second cylinder 490 and abut against the corresponding limiting posts 322. The base 1 is provided with a third support frame 329 for supporting the slide cylinder 320.

[0039] Further improvements, such as Figure 1 , Figure 8 and Figure 9As shown, the conveying mechanism 34 includes a drive mechanism 340 and a turntable 341. The drive mechanism 340 is mounted on the base 1, and the turntable 341 is mounted on the drive mechanism 340. The drive mechanism 340 drives the turntable 341 to rotate. The turntable 341 has a disc-shaped structure. The turntable 341 has four loading through holes 342 for loading machine housings at equal intervals along its circumference. Preferably, the turntable 341 has four loading fixtures for loading and positioning machine housings at equal intervals along its circumference. The loading through holes 342 are located on the loading fixtures. The heating mechanism 31, pressing mechanism 32, cooling mechanism 33, and robot arm 6 are arranged at intervals along the circumference of the turntable 341. The heating mechanism 31 is located directly above any three loading through holes 342. Preferably, the heating mechanism 31 is located directly above the loading through hole 342 on the rear side of the turntable 341, the pressing mechanism 32 is located directly above the loading through hole 342 on the left side of the turntable 341, the cooling mechanism 33 is located directly above the loading through hole 342 on the front side of the turntable 341, and the robotic arm 6 is located on the right side of the turntable 341. The label code recognition mechanism 30 is a barcode scanning camera. A turntable through hole is provided at the center of the turntable 341. The barcode scanning camera passes through the turntable through hole, and the lens of the barcode scanning camera faces the remaining loading through hole 342, that is, the lens of the barcode scanning camera faces the loading through hole 342 located on the right side of the turntable 341.

[0040] Further improvements, such as Figure 6 and Figure 7 As shown, the heating mechanism 31 includes a vertical linear slide 310 and a high-frequency heater 311. The linear slide 310 is mounted on the base 1, and the high-frequency heater 311 is mounted on the linear slide 310. The linear slide 310 drives the heating coil of the high-frequency heater 311 to extend into the housing, thereby heating the housing. The cooling mechanism 33 includes a fan 330 and a fourth support frame 331. The fourth support frame 331 is mounted on the base 1, and the fan 330 is mounted on the fourth support frame 331. Preferably, the fourth support frame 331 is provided with a lifting mechanism that drives the fan 330 to move up and down. The fan 330 is mounted on the lifting mechanism, which is also a linear slide 310. The fan 330 is provided with a hood that covers the housing. The fan's air outlet is located inside the hood. The lifting mechanism drives the hood to cover the housing, thereby concentrating the cooling air towards the housing, improving cooling efficiency, and preventing the cooling air from affecting the heating mechanism 31.

[0041] Further improvements, such as Figure 6 and Figure 7As shown, the label coding mechanism 2 includes a laser coding machine 20, a smoke extraction machine 21, a cylinder-type conveyor 22, and a cover 23. The laser coding machine 20, the smoke extraction machine 21, and the cylinder-type conveyor 22 are all mounted on the base 1. The cover 23 is mounted on the base 1 and covers one end of the cylinder-type conveyor 22 in the conveying direction. The cover 23 covers the right end of the cylinder-type conveyor 22. The output end of the laser coding machine 20 extends into the cover 23, and the smoke extraction tube of the smoke extraction machine 21 also extends into the cover 23. The right end of the cover 23 has an opening, and the output end of the laser coding machine 20 and the smoke extraction tube of the smoke extraction machine 21 extend into the cover 23 through the opening at the right end of the cover 23.

[0042] An NTC soldering and testing method, the method comprising the following steps:

[0043] S101, the robotic arm 6 transports the housing from the housing storage station 10 to the label coding mechanism 2, and the label coding mechanism 2 engraves QR code labels on the housing.

[0044] S102, the robot arm 6 transports the casing with the QR code engraved onto the conveying mechanism 34, the conveying mechanism 34 transports the casing to the position of the label code recognition mechanism 30, and the label code recognition mechanism 30 scans the QR code on the casing on the conveying mechanism 34.

[0045] S103, the robotic arm 6 transports the unqualified casings that are scanned by QR code to the defective product recycling station 5, and the conveying mechanism 34 transports the qualified casings to the position of the heating mechanism 31. The heating mechanism 31 heats the casings, causing them to expand due to heat.

[0046] S104, the conveying mechanism 34 conveys the housing heated to the set temperature to the position of the pressing mechanism 32. At this time, the stator feeding mechanism 4 has fed the stator onto the pressing mechanism 32, and the pressing mechanism 32 then installs the stator into the housing.

[0047] S105, the conveying mechanism 34 conveys the housing with the stator installed to the position of the cooling mechanism 33. The cooling mechanism 33 cools the housing, so that the housing shrinks when cooled, allowing the stator and housing to have an interference fit.

[0048] S106, the conveying mechanism 34 transports the cooled casing back to the position of the tag code recognition mechanism 30, at which point the robot arm 6 transports the casing to the next processing station.

[0049] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A stator heat-shrinking device, comprising a base; characterized in that, The base is equipped with a housing storage station; a label coding mechanism; and a stator assembly mechanism. The stator assembly mechanism includes a label code recognition mechanism, a heating mechanism, a pressing mechanism, a cooling mechanism, and a conveying mechanism. The conveying mechanism transports the housing sequentially through the label code recognition mechanism, the heating mechanism, the pressing mechanism, and the cooling mechanism. The base also has a stator feeding mechanism for feeding the pressing mechanism. A defective product recycling station is located on the base. A robotic arm is also provided on the base to transport housings between the housing storage station, the label coding mechanism, and the conveying mechanism. The robotic arm also transports defective housings to the defective product recycling station. The stator feeding mechanism includes a belt conveyor, a guide anti-misbehavior plate, a first loading plate, and a second loading plate. The first and second loading plates form a... A bearing plate is formed; the belt conveyor transports the stator to the top surface of the bearing plate; the guide anti-misalignment plate is located directly above the belt conveyor and the bearing plate; a first support frame supporting the belt conveyor and the guide anti-misalignment plate is provided on the base; two first cylinders driving the first and second load plates away from each other are provided on the guide anti-misalignment plate; multiple guide posts passing through the guide anti-misalignment plate, the stator, and the bearing plate are provided above the guide anti-misalignment plate; a second cylinder driving the guide posts to move up and down is provided above the first support frame on the guide anti-misalignment plate; two sliding grooves are provided at the top of the stator; a protrusion is also provided at the top of the stator; an avoidance groove extending along the conveying direction of the belt conveyor and two guide rails are provided on the bottom surface of the guide anti-misalignment plate; the avoidance groove avoids the protrusion; the two guide rails are inserted into the corresponding grooves.

2. The stator heat-shrinking device according to claim 1, characterized in that, The upper surfaces of the first and second load plates are both provided with limiting protrusions located on the side away from the belt conveyor; multiple actuating plates are provided at equal intervals on the belt of the belt conveyor; the first and second load plates are both provided with first clearance notches to avoid the actuating plates; the first and second load plates are also provided with second clearance notches to avoid the guide posts.

3. The stator heat-shrinking device according to claim 1, characterized in that, The pressing mechanism includes a sliding cylinder, an inner support chuck, a third cylinder, and a baffle. The third cylinder is located above the conveying mechanism. A second support frame supporting the third cylinder is provided on the base. The output end of the third cylinder is connected to a lifting plate. The inner support chuck is located on the bottom surface of the lifting plate. The baffle is elastically telescopically located on the bottom surface of the lifting plate. The baffle has a ring structure. The inner support chuck is located within the inner ring of the baffle. A lifting mechanism for lifting the stator is also provided on the base directly below the inner support chuck. The sliding cylinder is located directly below the bearing plate. The sliding cylinder conveys the stator directly below the inner support chuck. A fixture for carrying the stator is provided on the position of the sliding cylinder directly below the bearing plate. The fixture is provided with multiple limiting posts that abut against and are coaxial with the corresponding guide posts. A third support frame supporting the sliding cylinder is provided on the base.

4. The stator heat-shrinking device according to claim 1, characterized in that, The conveying mechanism includes a drive mechanism and a turntable; the drive mechanism is mounted on a base; the turntable is mounted on the drive mechanism; the turntable has four loading through holes for loading the machine housing at equal intervals along its circumference; the heating mechanism, pressing mechanism, cooling mechanism, and robotic arm are arranged at intervals along the circumference of the turntable; the heating mechanism, pressing mechanism, and cooling mechanism are located directly above any three loading through holes; the label code recognition mechanism is a barcode scanner; a turntable through hole is located at the center of the turntable; the barcode scanner extends through the turntable through hole; the lens of the barcode scanner faces the remaining loading through hole.

5. A stator heat-shrinking device according to claim 1, characterized in that, The heating mechanism includes a vertical linear slide and a high-frequency heater; the linear slide is mounted on a base; and the high-frequency heater is mounted on the linear slide.

6. A stator heat-shrinking device according to claim 1, characterized in that, The cooling mechanism includes a fan and a fourth support frame; the fourth support frame is mounted on the base; the fan is mounted on the fourth support frame.

7. A stator heat-shrinking device according to claim 1, characterized in that, The label coding mechanism includes a laser coding machine, a smoke extraction machine, a cylinder-type conveyor, and a housing; the laser coding machine, the smoke extraction machine, and the cylinder-type conveyor are all mounted on a base; the housing is mounted on the base and covers one end of the cylinder-type conveyor in the conveying direction; the output end of the laser coding machine extends into the housing; the smoke extraction pipe of the smoke extraction machine also extends into the housing.

8. A stator heat-shrinking method, based on the stator heat-shrinking equipment according to any one of claims 1-7, characterized in that, The method includes the following steps: S101, the robotic arm transports the housing from the housing storage station to the label coding mechanism, and the label coding mechanism engraves QR code labels on the housing; S102, the robotic arm transports the casing with the QR code engraved to the conveying mechanism, the conveying mechanism transports the casing to the position of the label code recognition mechanism, and the label code recognition mechanism scans the QR code on the casing on the conveying mechanism; S103, the robotic arm transports the unqualified casings that are scanned by QR code to the defective product recycling station, and the conveying mechanism transports the qualified casings to the heating mechanism. The heating mechanism heats the casings, causing them to expand due to heat. S104, the conveying mechanism conveys the housing heated to the set temperature to the position of the pressing mechanism. At this time, the stator feeding mechanism has fed the stator onto the pressing mechanism, and the pressing mechanism then installs the stator into the housing. S105, the conveying mechanism transports the housing with the stator installed to the position of the cooling mechanism. The cooling mechanism cools the housing, causing the housing to shrink and the stator to be interference-fitted with the housing. S106, the conveying mechanism transports the cooled casing back to the position of the tag code recognition mechanism, at which point the robot arm transports the casing to the next processing station.

Images