Motor stator-rotor assembly mold special for press

Abstract

The utility model relates to a motor stator -rotor combined die special for press, contain upper die assembly and lower die assembly, upper die assembly contain stator positioning base and stator positioning stop mouth ring, upper die assembly is connected with the lower end surface bolt joint of press upper base through second tight bolt, lower die assembly contain rotor positioning base and rotor positioning stop mouth ring, lower die assembly is connected with the upper end surface bolt joint of press lower base through fourth tight bolt, the utility model improves the efficiency and quality of permanent -magnet motor assembly, has solved the problem that the air gap is uneven and the assembly precision is insufficient in traditional manual assembly, has reduced the risk of human operation failure, provides more flexible and efficient solution for multi -variety small -batch production.

Description

Technical Field

[0001] This utility model relates to the field of marine permanent magnet motor assembly technology, specifically to a motor stator and rotor assembly mold for presses. Background Technology

[0002] During the assembly of the stator and rotor of a marine permanent magnet motor, if partial attraction occurs due to a single side of the air gap, it will hinder the normal progress of the process and pose a quality risk of damage to the permanent magnet. Although the above problems can be improved by using appropriate tooling.

[0003] The shortcomings of existing technology are: As the size of motors increases, the investment in tooling becomes larger, and the operability and reliability requirements cannot be fully met, which can easily leave hidden quality problems for the motors. There is an urgent need to use appropriate equipment and special fixtures to eliminate the influence of personnel skill factors in this process. Summary of the Invention

[0004] This utility model addresses the aforementioned problems by providing a special motor stator and rotor assembly mold for presses. Its purpose is to improve the efficiency and quality of permanent magnet motor assembly, solve the problems of uneven air gap and insufficient assembly precision in traditional manual assembly, reduce the risk of human error, and provide a more flexible and efficient solution for multi-variety, small-batch production.

[0005] To solve the above problems, the technical solution provided by this utility model is as follows: A special mold for assembling the stator and rotor of a motor for a press, comprising an upper mold assembly and a lower mold assembly, wherein: The upper mold assembly includes a stator positioning base and a stator positioning stop ring; the stator positioning base has a circular ring structure; the stator positioning stop ring has a circular ring structure; the inner stop of the stator positioning base transitions to the outer diameter of the stator positioning stop ring; the inner stop of the stator positioning base is provided with stator positioning base mounting holes; the outer diameter of the stator positioning stop ring has the same number of stator positioning stop ring mounting holes at corresponding positions to the stator positioning base mounting holes; a first set bolt passes through the stator positioning base mounting holes and the stator positioning stop ring mounting holes to bolt the stator positioning base and the stator positioning stop ring; the upper mold assembly is bolted to the lower end face of the press upper base by a second set bolt; The lower die assembly includes a rotor positioning base and a rotor positioning stop ring; the rotor positioning base has a circular ring structure; the rotor positioning stop ring has a circular ring structure; the inner stop of the rotor positioning base transitions with the outer diameter of the rotor positioning stop ring; the inner stop of the rotor positioning base is provided with rotor positioning base mounting holes around its circumference; the outer diameter of the rotor positioning stop ring has the same number of rotor positioning stop ring mounting holes at corresponding positions to the rotor positioning base mounting holes; a third set bolt passes through the rotor positioning base mounting holes and the rotor positioning stop ring mounting holes to bolt the rotor positioning base and the rotor positioning stop ring; the lower die assembly is bolted to the upper end face of the press lower base by a fourth set bolt.

[0006] Preferably, the upper end face of the stator positioning base is provided with an upper base limiting block and an upper base positioning pin hole; the upper base limiting block and the upper base positioning pin hole are respectively matched with the T-slot of the upper base of the press; the lower end face of the rotor positioning base is provided with a lower base limiting block and a lower base positioning pin hole; the lower base limiting block and the lower base positioning pin hole are respectively matched with the T-slot of the lower base of the press.

[0007] Preferably, the diameter of the first end cover mating stop of the stator positioning stop ring is consistent with the inner diameter of the end cover bearing chamber, and the diameter of the first end cover mating stop of the stator positioning stop ring is mated with the corresponding end cover bearing chamber stop; the diameter of the second end cover mating stop of the rotor positioning stop ring is consistent with the inner diameter of the end cover bearing chamber, and the diameter of the second end cover mating stop of the rotor positioning stop ring is mated with the corresponding end cover bearing chamber stop with a small clearance.

[0008] Preferably, the rotor positioning stop ring is provided with a plurality of rotor assembly fixing mounting holes; the distribution of the rotor assembly fixing mounting holes maintains the same pitch circle layout as the mounting holes of the shaft extension end cover; the lower mold assembly precisely locks the shaft extension end bearing inner cover, the shaft extension end cover, the shaft extension end bearing and the rotor positioning stop ring through the rotor assembly fixing mounting holes.

[0009] Preferably, the upper mold assembly uses a fifth set bolt inserted into the stator assembly mounting hole to precisely lock the machine base, the non-shaft extension end cover, and the stator positioning stop ring.

[0010] Preferably, the stator positioning base, the stator positioning stop ring, the rotor positioning base, and the rotor positioning stop ring are each provided with a plurality of weight-reducing holes arranged in a ring.

[0011] Preferably, the stator positioning stop ring and the rotor positioning stop ring each include multiple sizes, and each size of the stator positioning stop ring and the rotor positioning stop ring is adapted to different models of permanent magnet motors.

[0012] Preferably, the upper mold assembly further includes a guide sleeve, a guide post, and a shaft end positioning stop ring; the flange structure of the guide sleeve head is rigidly connected to the upper end face of the press upper base through a mounting hole; the inner side of the guide sleeve is fitted with the guide post with a small clearance; the guide post passes through the guide sleeve, the press upper base, the stator positioning base, the stator positioning stop ring, the non-shaft extension end cover, and the machine base from top to bottom in sequence; the end of the guide post is sleeved with the shaft end positioning stop ring; the center of the lower end face of the shaft end positioning stop ring is fitted with the top end of the rotating shaft and is used for initial position locking of the rotor assembly.

[0013] Preferably, the shaft end positioning stop ring includes multiple sizes, and each size of the shaft end positioning stop ring is adapted to the rotating shaft with different shaft diameters.

[0014] Compared with the prior art, this utility model has the following advantages: 1. This utility model significantly improves the efficiency and quality of permanent magnet motor assembly through modular and segmented design and the use of press repeatable high-precision positioning technology, and solves the problems of uneven air gap and insufficient assembly accuracy in traditional manual assembly.

[0015] 2. This utility model employs a combination of a press and a specialized fixture, which not only reduces the risk of human error but also provides a more flexible and efficient solution for multi-variety, small-batch production. Through continuous optimization and improvement of the fixture's design, its applicability and assembly accuracy can be further enhanced, contributing to the high-quality production of permanent magnet motors. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the press-specific motor stator and rotor assembly mold structure according to a specific embodiment of the present utility model; Figure 2a This is a schematic cross-sectional view of the stator positioning base according to a specific embodiment of the present utility model; Figure 2b This is a schematic front view of the stator positioning base according to a specific embodiment of the present utility model; Figure 3a This is a schematic cross-sectional view of the stator positioning stop ring according to a specific embodiment of the present utility model; Figure 3b This is a schematic front view of the stator positioning stop ring according to a specific embodiment of the present utility model; Figure 4a This is a schematic cross-sectional view of the rotor positioning base according to a specific embodiment of the present utility model; Figure 4b This is a schematic front view of the rotor positioning base according to a specific embodiment of the present invention; Figure 5a This is a schematic cross-sectional view of the rotor positioning stop ring according to a specific embodiment of the present utility model; Figure 5b This is a schematic front view of the rotor positioning stop ring according to a specific embodiment of the present invention.

[0017] Among them: 100. Upper mold assembly, 200. Lower mold assembly, 300. Press upper base, 400. Press lower base, 500. Shaft extension end cover, 600. Shaft extension end bearing inner cover, 700. Shaft extension end bearing, 800. Machine base, 900. Non-shaft extension end cover, 1000. Weight reduction hole, 1100. Rotating shaft, 110. Stator positioning base, 120. Stator positioning stop ring, 130. Guide sleeve, 140. Guide post, 150. Shaft end positioning stop ring, 111. Stator positioning base mounting hole, 112. Upper base limit block, 113. Upper base positioning pin hole, 12 1. Stator positioning stop ring mounting hole; 122. Stator assembly fixing mounting hole; 123. First end cover mating stop; 160. First set bolt; 170. Second set bolt; 210. Rotor positioning base; 220. Rotor positioning stop ring; 211. Rotor positioning base mounting hole; 212. Lower base limit block; 213. Lower base positioning pin hole; 221. Rotor positioning stop ring mounting hole; 222. Rotor assembly fixing mounting hole; 223. Second end cover mating stop; 230. Third set bolt; 240. Fourth set bolt; Fifth set bolt (180) Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0019] This utility model application claims protection for a special motor stator and rotor assembly mold for presses, such as... Figure 1 As shown, this utility model adopts a modular split structure, including an upper mold assembly 100 and a lower mold assembly 200, wherein: The upper mold assembly 100 includes a stator positioning base 110 and a stator positioning stop ring 120. The stator positioning base 110 has a circular ring structure. The stator positioning stop ring 120 has a circular ring structure. The inner stop of the stator positioning base 110 transitions with the outer diameter of the stator positioning stop ring 120. The inner stop of the stator positioning base 110 is provided with stator positioning base mounting holes 111. The outer diameter of the stator positioning stop ring 120 is provided with the same number of stator positioning stop ring mounting holes 121 at corresponding positions of the stator positioning base mounting holes 111. A first set bolt 160 passes through the stator positioning base mounting holes 111 and the stator positioning stop ring mounting holes 121 to bolt the stator positioning base 110 and the stator positioning stop ring 120 together. The upper mold assembly 100 is bolted to the lower end face of the press upper base 300 by a second set bolt 170. The lower die assembly 200 includes a rotor positioning base 210 and a rotor positioning stop ring 220; the rotor positioning base 210 has a circular ring structure; the rotor positioning stop ring 220 has a circular ring structure; the inner stop of the rotor positioning base 210 transitions with the outer diameter of the rotor positioning stop ring 220; the inner stop of the rotor positioning base 210 is provided with rotor positioning base mounting holes 211; the outer diameter of the rotor positioning stop ring 220 is provided with the same number of rotor positioning stop ring mounting holes 221 at corresponding positions of the rotor positioning base mounting holes 211; a third set bolt 230 passes through the rotor positioning base mounting holes 211 and the rotor positioning stop ring mounting holes 221 to bolt the rotor positioning base 210 and the rotor positioning stop ring 220 together; the lower die assembly 200 is bolted to the upper end face of the press lower base 400 by a fourth set bolt 240.

[0020] It should be noted that the upper end face of the stator positioning base 110 is provided with an upper base limiting block 112 and an upper base positioning pin hole 113; the upper base limiting block 112 and the upper base positioning pin hole 113 are respectively matched with the T-slot of the upper base 300 of the press; the lower end face of the rotor positioning base 210 is provided with a lower base limiting block 212 and a lower base positioning pin hole 213; the lower base limiting block 212 and the lower base positioning pin hole 213 are respectively matched with the T-slot of the lower base 400 of the press.

[0021] It should be noted that the upper mold assembly 100 also includes a guide sleeve 130, a guide post 140, and a shaft end positioning stop ring 150; the flange structure of the head of the guide sleeve 130 is rigidly connected to the upper end face of the press upper base 300 through the mounting hole; the inner side of the guide sleeve 130 is in close clearance fit with the guide post 140; the guide post 140 passes through the guide sleeve 130, the press upper base 300, the stator positioning base 110, the stator positioning stop ring 120, the non-shaft extension end cover 900, and the machine base 800 from top to bottom; the end of the guide post 140 is sleeved with the shaft end positioning stop ring 150; the center of the lower end face of the shaft end positioning stop ring 150 is in mate with the top of the rotating shaft 1100, and is used for initial position locking of the rotor assembly and to assist the alignment and assembly of the rotating shaft 1100.

[0022] It should be further noted that the shaft end locating stop ring 150 includes various sizes, and each size of the shaft end locating stop ring 150 is adapted to the rotating shaft 1100 with different shaft diameters.

[0023] It should be noted that this tooling utilizes the press's precision control capability when performing the same positioning action multiple times. The mold design allows for the replacement of only the stator positioning stop ring 120, the rotor positioning stop ring 220, and the shaft end positioning stop ring 150 during each assembly process. The stator positioning stop ring 120 and the rotor positioning stop ring 220 are connected to the upper base 300 and the lower base 400 of the press, respectively; the shaft end positioning stop ring 150 is connected to the guide post 140. The press's repeatable precision positioning capability ensures accurate fixing and positioning of the motor's stator and rotor, significantly reducing errors caused by human operation and ensuring coaxiality accuracy during motor assembly.

[0024] It should be noted that, as Figure 2a , 2b As shown in 3a and 3b, the diameter of the first end cover mating stop 123 of the stator positioning stop ring 120 is consistent with the inner diameter of the end cover bearing chamber, and the diameter of the first end cover mating stop 123 of the stator positioning stop ring 120 is mated with the corresponding end cover bearing chamber stop; the diameter of the second end cover mating stop 223 of the rotor positioning stop ring 220 is consistent with the inner diameter of the end cover bearing chamber, and the second end cover mating stop 223 of the rotor positioning stop ring 220 is mated with the corresponding end cover bearing chamber stop with a small clearance.

[0025] It should be further explained that the upper mold assembly 100 precisely locks the machine base 800, the non-shaft extension end cover 900 and the stator positioning stop ring 120 by inserting the fifth set bolt 180 through the stator assembly fixing mounting hole 122.

[0026] It should be noted that, as Figure 4a , 4bAs shown in Figures 5a and 5b, the rotor positioning stop ring 220 is provided with multiple rotor assembly fixing mounting holes 222; the distribution of the rotor assembly fixing mounting holes 222 is the same as the pitch circle layout of the mounting holes of the shaft extension end cover 500; the lower mold assembly 200 precisely locks the shaft extension end bearing inner cover 600, the shaft extension end cover 500, the shaft extension end bearing 700 and the rotor positioning stop ring 220 through the rotor assembly fixing mounting holes 222.

[0027] It should be noted that the upper base positioning pin hole 113 is equipped with an upper base limit block 112; the lower base positioning pin hole 213 is equipped with a lower base limit block 212; the upper and lower mold bases, limit blocks and press platform are rigidly connected by bolts to form a reliable three-dimensional positioning constraint.

[0028] It should be noted that multiple weight-reducing holes 1000 are arranged in a ring on the stator positioning base 110, stator positioning stop ring 120, rotor positioning base 210, and rotor positioning stop ring 220 respectively.

[0029] It should be noted that the stator positioning stop ring 120 and the rotor positioning stop ring 220 are available in various sizes, and each size of the stator positioning stop ring 120 and the rotor positioning stop ring 220 is adapted to different models of permanent magnet motors.

[0030] It should be noted that this utility model innovatively adopts a split design, with the positioning base serving as a universal base connected to the upper and lower bases of the press. The press's repeatability in positioning ensures accuracy in each positioning attempt. Only different sizes of positioning stop rings need to be replaced to accommodate various permanent magnet motor models. In specific implementation, the axial positioning reference is the 500 bearing chamber stop of the shaft extension end cover, and the radial orientation reference is the mounting hole. The outer stop of the modular positioning stop ring transitions with the inner stop of the base, and the inner stop of the base is designed with a small clearance fit based on the actual dimensions of the end cover bearing chamber, ensuring repeatability of positioning accuracy.

[0031] It should be noted that during the assembly process of this utility model, the upper part, the base 800, and the non-shaft extension end cover 900 cooperate with the stator positioning stop ring 120 through the bearing chamber stop of the end cover. The base 800, the non-shaft extension end cover 900, and the stator positioning stop ring 120 are locked together using the stator assembly fixing mounting hole 122 end cover and the base pitch circle. At the same time, the guide sleeve 130 and the guide post 140 are used to assist in positioning the shaft end. The lower part, the rotor core, cooperates with the rotor positioning stop ring 220 through the bearing chamber stop of the shaft extension end cover 500. The shaft extension end cover 500, the shaft extension end bearing inner cover 600, the shaft extension end bearing 700, the shaft 1100, and the rotor positioning stop ring 220 are locked together using the rotor assembly fixing mounting hole 222 end cover and the bearing inner cover pitch circle. By leveraging the synergistic effect of the stator and rotor assembly double-end stop positioning system and the press's repeatability positioning accuracy, a high degree of consistency in the coaxiality of the stator and rotor is ultimately achieved, while significantly reducing mold development costs and management complexity.

[0032] It should be noted that the mold of this utility model includes the following usage process: S100. Mold assembly and tooling preparation process: Modular stop ring selection: Based on the stop diameter and mounting hole pitch circle parameters of the bearing chambers of the upper and lower end covers, the pitch circle of the stator assembly fixing mounting hole 122 of the upper mold assembly 100 is the same as the pitch circle of the machine base 800 and the non-shaft extension end cover 900; the pitch circle of the rotor assembly fixing mounting hole 222 of the lower mold assembly 200 is the same as the pitch circle of the shaft extension end cover 500 and the shaft extension end bearing inner cover 600, select the corresponding specifications of stator positioning stop ring 120 and rotor positioning stop ring 220; select the corresponding specifications of shaft end positioning stop ring 150 according to the shaft diameter.

[0033] Base and stop ring assembly: The outer stop of the positioning stop ring and the inner stop of the positioning base are nested through transition fit and locked in place by mounting hole bolts to form the upper mold assembly 100 (stator mold) and the lower mold assembly 200 (rotor mold).

[0034] Auxiliary positioning of guide sleeve and guide post: The flange structure of the head of the guide sleeve 130 is rigidly connected to the upper mold platform of the press through the mounting hole. The end of the guide post 140 is designed as a shaft end positioning stop ring 150. It is a separate design from the guide post 140 and can be continuously replaced to match the rotating shaft 1100 of different models of motors to achieve the initial position locking of the rotor assembly and form auxiliary flexible positioning.

[0035] Press platform positioning: Based on the distribution of T-slots on the upper and lower platforms of the press, adjust the position of the limit block, and then adjust the matching position of the positioning pin hole of the mold base and the press limit block. Fix the positioning base mold and the press platform with bolts.

[0036] S200. Workpiece positioning and coaxiality calibration: Stator positioning of upper mold assembly 100: The outer stop of the stator positioning stop ring 120 of the upper mold assembly 100 is matched with the stop of the corresponding end cover bearing chamber. The stator positioning stop ring 120, the machine base 800, and the non-shaft extension end cover 900 are locked by the mounting hole bolt group to ensure that the machine base stop and the end cover stop are coaxial. At the same time, the guide sleeve-guide post are used for auxiliary positioning to ensure the coaxiality of the stator and rotor.

[0037] Rotor positioning of lower mold assembly 200: The outer stop of the rotor positioning stop ring 220 of the lower mold assembly 200 is fitted with the stop of the end cover bearing chamber with a small clearance. At the same time, the mounting holes of the shaft extension end cover 500 and the shaft extension end bearing inner cover 600 are used as the orientation reference. The rotor positioning stop ring 220, the shaft extension end cover 500, the shaft extension end bearing inner cover 600, the shaft extension end bearing 700, and the rotating shaft 1100 are fixed in series by bolts.

[0038] S300. Press-fit locking and guide sleeve-guide post coaxiality verification: Based on the T-slot distribution of the upper and lower platforms of the press, the stator and rotor parts are precisely positioned using the guide sleeve-guide post auxiliary positioning system. The matching position of the positioning pin hole of the mold base and the limit block of the press is adjusted, and the mold and the press platform are fixed by bolts.

[0039] Separate mold closure: After precise positioning, close the upper and lower molds, check the alignment of the positioning base pin holes with the press limit blocks, and complete the overall rigid fixation of the mold. After ensuring that all components are correctly positioned and locked, start the press for assembly. The press applies uniform pressure to press the stator and rotor together, maintaining a uniform air gap to avoid localized suction.

[0040] Coaxiality control: By positioning the upper and lower end stops and locking them together with the mounting holes, and by utilizing the repeatability of the press, the consistency of the axial and radial positions of the stator and rotor of different models can be achieved, thus meeting the coaxiality requirements of assembling different models of motors.

[0041] In the above detailed description, various features are combined together in a single embodiment to simplify this disclosure. This approach to disclosure should not be construed as reflecting an intention that embodiments of the claimed subject matter require more features than are explicitly stated in each claim. Rather, as reflected in the appended claims, the present invention is in a state with fewer features than all of the disclosed individual embodiments. Therefore, the appended claims are hereby clearly incorporated into the detailed description, wherein each claim stands alone as a preferred embodiment of the present invention.

[0042] The disclosed embodiments have been described above to enable any person skilled in the art to implement or use this invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the spirit and scope of this disclosure. Therefore, this disclosure is not limited to the embodiments given herein, but is consistent with the widest scope of the principles and novel features disclosed in this application.

[0043] The foregoing description includes examples of one or more embodiments. It is certainly impossible to describe all possible combinations of components or methods in order to describe the above embodiments, but those skilled in the art will recognize that further combinations and arrangements of the various embodiments are possible. Therefore, the embodiments described herein are intended to cover all such changes, modifications, and variations that fall within the scope of the appended claims. Furthermore, the term "comprising" as used in the specification or claims is interpreted in a manner similar to the term "including," as interpreted when used as a conjunction in the claims. Additionally, the use of any term "or" in the specification of the claims is intended to mean "non-exclusive or."

[0044] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A special mold for assembling the stator and rotor of a motor for a press, characterized in that: It includes an upper mold assembly (100) and a lower mold assembly (200), wherein: The upper mold assembly (100) includes a stator positioning base (110) and a stator positioning stop ring (120); the stator positioning base (110) has a circular structure; the stator positioning stop ring (120) has a circular structure; the inner stop of the stator positioning base (110) is transitionally fitted with the outer diameter of the stator positioning stop ring (120); the inner stop of the stator positioning base (110) is provided with stator positioning base mounting holes (111); the outer diameter of the stator positioning stop ring (120) is... The stator positioning base mounting hole (121) is provided with the same number of stator positioning stop ring mounting holes (121) at the corresponding positions of the stator positioning base mounting hole (111); the first set bolt (160) passes through the stator positioning base mounting hole (111) and the stator positioning stop ring mounting hole (121) to bolt the stator positioning base (110) and the stator positioning stop ring (120); the upper mold assembly (100) is bolted to the lower end face of the press upper base (300) by the second set bolt (170); The lower mold assembly (200) includes a rotor positioning base (210) and a rotor positioning stop ring (220); the rotor positioning base (210) has a circular structure; the rotor positioning stop ring (220) has a circular structure; the inner stop of the rotor positioning base (210) transitions with the outer diameter of the rotor positioning stop ring (220); the inner stop of the rotor positioning base (210) is provided with rotor positioning base mounting holes (211); the outer diameter of the rotor positioning stop ring (220)... The same number of rotor positioning stop ring mounting holes (221) are provided at the corresponding positions of the rotor positioning base mounting holes (211); the third set bolt (230) passes through the rotor positioning base mounting holes (211) and the rotor positioning stop ring mounting holes (221) to bolt the rotor positioning base (210) and the rotor positioning stop ring (220); the lower mold assembly (200) is bolted to the upper end face of the press lower base (400) by the fourth set bolt (240).

2. The press-specific motor stator and rotor assembly mold according to claim 1, characterized in that: The upper end face of the stator positioning base (110) is provided with an upper base limiting block (112) and an upper base positioning pin hole (113); the upper base limiting block (112) and the upper base positioning pin hole (113) are respectively matched with the T-slot of the upper base (300) of the press; the lower end face of the rotor positioning base (210) is provided with a lower base limiting block (212) and a lower base positioning pin hole (213); the lower base limiting block (212) and the lower base positioning pin hole (213) are respectively matched with the T-slot of the lower base (400) of the press.

3. The press-specific motor stator and rotor assembly mold according to claim 2, characterized in that: The diameter of the first end cap mating stop (123) of the stator positioning stop ring (120) is consistent with the inner diameter of the end cap bearing chamber, and the diameter of the first end cap mating stop (123) of the stator positioning stop ring (120) is mated with the corresponding end cap bearing chamber stop; the diameter of the second end cap mating stop (223) of the rotor positioning stop ring (220) is consistent with the inner diameter of the end cap bearing chamber, and the second end cap mating stop (223) of the rotor positioning stop ring (220) is mated with the corresponding bearing chamber stop with a small clearance.

4. The press-specific motor stator and rotor assembly mold according to claim 3, characterized in that: The rotor positioning stop ring (220) is provided with multiple rotor assembly fixing mounting holes (222); the distribution of the rotor assembly fixing mounting holes (222) is the same as the mounting holes of the shaft extension end cover (500) with the same pitch circle layout; the lower mold assembly (200) precisely locks the shaft extension end bearing inner cover (600), the shaft extension end cover (500), the shaft extension end bearing (700) and the rotor positioning stop ring (220) through the rotor assembly fixing mounting holes (222).

5. The press-specific motor stator and rotor assembly mold according to claim 4, characterized in that: The upper mold assembly (100) is inserted into the stator assembly fixing mounting hole (122) by the fifth set bolt (180) to precisely lock the machine base (800), the non-shaft extension end cap (900) and the stator positioning stop ring (120).

6. The press-specific motor stator and rotor assembly mold according to claim 5, characterized in that: The stator positioning base (110), the stator positioning stop ring (120), the rotor positioning base (210), and the rotor positioning stop ring (220) are respectively arranged in a ring with a plurality of weight reduction holes (1000).

7. The press-specific motor stator and rotor assembly mold according to claim 6, characterized in that: The stator positioning stop ring (120) and the rotor positioning stop ring (220) each include various sizes, and each size of the stator positioning stop ring (120) and the rotor positioning stop ring (220) is adapted to different models of permanent magnet motors.

8. The press-specific motor stator and rotor assembly mold according to claim 1, characterized in that: The upper mold assembly (100) also includes a guide sleeve (130), a guide post (140), and a shaft end positioning stop ring (150); the flange structure of the head of the guide sleeve (130) is rigidly connected to the upper end face of the press upper base (300) through the mounting hole; the inner side of the guide sleeve (130) is in small clearance fit with the guide post (140); the guide post (140) passes through the guide sleeve (130), the press upper base (300), the stator positioning base (110), the stator positioning stop ring (120), the non-shaft extension end cap (900), and the machine base (800) from top to bottom; the end of the guide post (140) is sleeved with the shaft end positioning stop ring (150); the center of the lower end face of the shaft end positioning stop ring (150) is in small clearance fit with the top end of the rotating shaft (1100) and is used for initial position locking of the rotor assembly.

9. The press-specific motor stator and rotor assembly mold according to claim 8, characterized in that: The shaft end positioning stop ring (150) includes various sizes, and each size of the shaft end positioning stop ring (150) is adapted to the rotating shaft (1100) of different shaft diameters.

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