Steel ring pressing device for stator core

Abstract

The utility model relates to the technical field of motor processing devices, in particular to a stator iron core steel ring pressing device which comprises a rack assembly, and a stator iron core transferring mechanism, an iron core leveling mechanism, a steel ring transferring mechanism, a steel ring rotary feeding mechanism and a steel ring press-fitting mechanism are arranged on the surface of the rack assembly. The stator iron core transferring mechanism comprises a linear execution assembly and a positioning tool, and a stator iron core is placed in the positioning tool and can be driven by the linear execution assembly to do linear motion. The device is simple in structure and small in occupied space, automatic feeding of the steel rings is achieved, manual dependence is effectively reduced, and meanwhile the efficiency of holding assembly achieved by pressing connection of the steel rings and the stator iron core can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor processing devices, in particular to a device for pressing a steel ring on a stator core. Background Technique

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system and belongs to an auxiliary motor indirect speed change device. It can convert a voltage signal into torque and rotational speed to drive a controlled object. The rotational speed of the servo motor rotor is controlled by an input signal and can respond quickly, with characteristics such as a small electromechanical time constant, high linearity, and starting voltage. Its working principle can be simply summarized as: input control signal → servo controller → servo motor → output motion. The servo system consists of a servo motor, a servo controller, and a feedback device. When the servo motor receives a pulse signal, it will rotate by an angle corresponding to the pulse, thereby achieving displacement.

[0003] The structure of a servo motor mainly consists of components such as a stator, a rotor, and an encoder. Among them, the stator of the servo motor is usually formed by several iron cores held tightly together, and two-phase or three-phase windings are embedded in the surface slots, and these windings are used to generate a rotating magnetic field. The rotor is the rotating part of the servo motor, and its structure is related to the type of motor. For a permanent magnet servo motor, the rotor is usually composed of permanent magnets, and these permanent magnets rotate in the magnetic field generated by the stator.

[0004] Servo motors are widely used in many fields, such as industrial automation, electronic equipment, transportation, printing and packaging, and robotics, and have advantages such as high precision, high rotational speed, strong adaptability, good stability, short dynamic response time, and good comfort. However, in the production process of servo motors, the iron cores are mostly held tightly by manual hoop methods. This method not only relies heavily on labor, resulting in increased production costs, but also has low production efficiency. In addition, since the iron cores need to be held tightly to ensure that the upper and lower ends of the stator core are horizontal, and manual work is affected by experience levels, it is difficult to ensure that all the stator cores after being held tightly are qualified.

[0005] Therefore, there is an urgent need for a new technical solution to solve the above technical problems. Content of the Utility Model

[0006] The purpose of the utility model is to overcome the problems of the above-mentioned existing technologies, and provides a device for pressing a steel ring on a stator core, which is used to solve the technical problems of low efficiency and low product qualification rate of manually holding the iron core of the stator core in the existing technology.

[0007] The above purpose is achieved through the following technical solutions:

[0008] A stator core steel ring pressing device includes a frame assembly, on the surface of which there are a stator core transfer mechanism, a core leveling mechanism, a steel ring transfer mechanism, a steel ring rotary feeding mechanism, and a steel ring pressing mechanism; the stator core transfer mechanism includes a linear execution assembly and a positioning tooling, in which a stator core is placed and can move linearly under the drive of the linear execution assembly; the core leveling mechanism is used to level the stator core; the steel ring transfer mechanism is used to transfer the steel rings stacked on the steel ring rotary feeding mechanism to the positioning tooling to sleave the stator core; the steel ring pressing mechanism is used to press the positioning tooling that moves to its working area to realize the pressing connection between the steel ring and the stator core.

[0009] Further, the linear execution assembly includes a material transfer table board, on which a pair of linear guide rails are symmetrically arranged, a synchronous belt transmission assembly is arranged between the two linear guide rails, the positioning tooling is arranged on the synchronous belt transmission assembly, and the positioning tooling is also slidably connected with the two linear guide rails.

[0010] Further, the synchronous belt transmission assembly includes a symmetrically arranged synchronous wheel front seat and synchronous wheel rear seat, synchronous wheels are respectively movably arranged on the synchronous wheel front seat and the synchronous wheel rear seat, a synchronous belt is arranged between the two synchronous wheels; any one of the synchronous wheels is driven by a synchronous wheel motor.

[0011] Further, the positioning tooling includes a positioning support plate that is slidably connected with the two linear guide rails and fixedly connected with the synchronous belt, and a stator core socket for the stator core to be inserted is arranged on the positioning support plate; a pair of positioning steel needles are arranged on both sides of the stator core socket for positioning the steel ring.

[0012] Further, the steel ring transfer mechanism includes a steel ring transfer bracket fixedly connected with the frame assembly, a transverse translation module is arranged on the steel ring transfer bracket, a lifting module is arranged on the transverse translation slide of the transverse translation module, and a steel ring cylinder gripper with a downward opening is arranged on the lifting slide of the lifting module.

[0013] Further, the steel ring rotary feeding mechanism includes a steel ring turntable arranged on the surface of the frame assembly, a number of steel ring stacking racks are equidistantly arranged on the steel ring turntable, and the steel rings are longitudinally stacked on the steel ring stacking racks; the steel ring rotary feeding mechanism also includes a steel ring lifting assembly arranged adjacent to the steel ring transfer mechanism; the steel ring lifting assembly is located at the bottom side of the steel ring turntable and includes a steel ring lifting bracket fixedly connected with the frame assembly and a steel ring lifting push rod connected through the steel ring lifting bracket, and a steel ring top rod that can act on the lowermost steel ring on the steel ring stacking rack is arranged at the piston end of the steel ring lifting push rod.

[0014] Further, the iron core leveling mechanism includes a leveling bracket disposed on the steel ring transfer bracket. The leveling bracket is provided with a leveling electric cylinder, and the piston end of the leveling electric cylinder is connected with an elastic leveling press needle assembly.

[0015] Further, the elastic leveling press needle assembly includes a leveling upper support plate and a leveling lower support plate arranged vertically up and down. The leveling upper support plate and the leveling lower support plate are connected by a leveling support pillar disposed at the axis; a plurality of leveling press needles are arranged on the leveling lower support plate, and a plurality of press needle through holes for the leveling press needles to penetrate are formed on the leveling upper support plate; a rectangular spring is sleeved on the leveling press needle, the top end of the rectangular spring abuts against the bottom surface of the leveling upper support plate, and the bottom end of the rectangular spring abuts against the surface of the leveling lower support plate.

[0016] Further, the steel ring pressing mechanism includes a plurality of pressing support pillars perpendicularly connected to the surface of the frame assembly. The top of each pressing support pillar is provided with an electric cylinder fixing plate, and a pressing ring electric cylinder is arranged on the electric cylinder fixing plate. The piston of the pressing ring electric cylinder penetrates through the electric cylinder fixing plate and is connected with a pressing head assembly; the pressing head assembly includes a pressing head fixing plate movably sleeved on the pressing support pillar. A pressing head is arranged on the bottom surface of the pressing head fixing plate, and a pressing head connecting seat with a cavity is arranged on the surface of the pressing head fixing plate. A weighing sensor connected to the pressing head fixing plate is arranged in the pressing head connecting seat; a floating joint capable of being connected with the piston end of the pressing ring electric cylinder is further arranged in the pressing head connecting seat, and the floating joint can act on a rotating joint connected with the weighing sensor.

[0017] Further, the frame assembly includes a frame, a table top plate and a lower sealing plate.

[0018] Beneficial Effects

[0019] A stator core pressing steel ring device provided by the present utility model transfers the stator core to the iron core leveling mechanism through the stator core transfer mechanism for iron core leveling treatment, then transfers it to the steel ring transfer mechanism for sleeving the steel ring and the stator core, and continues to transfer it to the steel ring pressing mechanism to realize the pressing connection between the steel ring and the stator core, and further finally realizes the automatic clamping of the stator core by the steel ring. This device not only has a simple structure and small occupied space, but also realizes the automatic feeding of the steel ring, effectively reduces the dependence on manual labor while effectively improving the efficiency of the pressing connection between the steel ring and the stator core to realize the clamping and assembly. Description of the Drawings

[0020] Figure 1 is a first perspective structural schematic diagram of the stator core pressing steel ring device described in the present utility model;

[0021] Figure 2It is a schematic structural diagram of the second perspective of a steel ring pressing device for a stator core according to the present utility model;

[0022] Figure 3 It is a schematic structural diagram of a steel ring rotating feeding mechanism in a steel ring pressing device for a stator core according to the present utility model;

[0023] Figure 4 It is a schematic structural diagram of a stator core transfer mechanism in a steel ring pressing device for a stator core according to the present utility model;

[0024] Figure 5 It is a schematic structural diagram of a steel ring transfer mechanism in a steel ring pressing device for a stator core according to the present utility model;

[0025] Figure 6 It is a schematic structural diagram of a core flattening mechanism in a steel ring pressing device for a stator core according to the present utility model;

[0026] Figure 7 It is a cross-sectional view of a flattening press needle assembly in a steel ring pressing device for a stator core according to the present utility model;

[0027] Figure 8 It is a schematic structural diagram of a steel ring pressing mechanism in a steel ring pressing device for a stator core according to the present utility model;

[0028] Figure 9 It is a cross-sectional view of a steel ring pressing mechanism in a steel ring pressing device for a stator core according to the present utility model.

[0029] Illustration marks:

[0030] 1 - Frame assembly, 101 - Frame, 102 - Table panel, 103 - Lower sealing plate;

[0031] 2 - Stator core transfer mechanism, 201 - Linear actuator assembly, 202 - Positioning tooling, 203 - Material transfer table board, 204 - Linear guide rail, 205 - Synchronous belt transmission assembly, 206 - Synchronous wheel motor, 207 - Synchronous wheel front seat, 208 - Synchronous wheel rear seat, 209 - Synchronous wheel, 210 - Synchronous belt, 211 - Positioning support plate, 212 - Stator core socket, 213 - Positioning steel needle;

[0032] 3 - Core flattening mechanism, 301 - Flattening bracket, 302 - Flattening electric cylinder, 303 - Flattening press needle assembly, 304 - Flattening upper support plate, 305 - Flattening lower support plate, 306 - Flattening support pillar, 307 - Flattening press needle, 308 - Press needle through hole, 309 - Rectangular spring;

[0033] 4 - Steel ring transfer mechanism, 401 - Steel ring transfer bracket, 402 - Cross - transfer module, 403 - Cross - transfer slide, 404 - Lifting module, 405 - Lifting slide, 406 - Steel ring cylinder gripper;

[0034] 5 - Steel ring rotary feeding mechanism, 501 - Steel ring turntable, 502 - Steel ring stacking rack, 503 - Steel ring lifting assembly, 504 - Steel ring lifting bracket, 505 - Steel ring lifting push rod, 506 - Steel ring ejector rod, 507 - Rotary motor;

[0035] 6 - Steel ring pressing mechanism, 601 - Pressing support, 602 - Electric cylinder fixing plate, 603 - Pressing ring electric cylinder, 604 - Pressing head assembly, 605 - Pressing head fixing plate, 606 - Pressing head, 607 - Pressing head connecting seat, 608 - Weighing sensor, 609 - Floating joint, 610 - Adapter;

[0036] 7 - Stator core, 701 - Core;

[0037] 8 - Steel ring. Detailed implementation manners

[0038] The present utility model will be further described in detail below with reference to the drawings and embodiments. The described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0039] As Figure 1 and Figure 2 shown, this solution provides a stator core steel ring pressing device, including a frame assembly 1, on the surface of which there are arranged a stator core transfer mechanism 2, a core leveling mechanism 3, a steel ring transfer mechanism 4, a steel ring rotary feeding mechanism 5 and a steel ring pressing mechanism 6;

[0040] The stator core transfer mechanism 2 includes a linear actuator assembly 201 and a positioning tooling 202, in which a stator core 7 is placed and can move linearly under the drive of the linear actuator assembly 201;

[0041] The core leveling mechanism 3 is used to level the stator core 7, that is, to press flat each core 701 that makes up the annular stator core so that they are all in the same horizontal plane for subsequent pressing with the steel ring 8;

[0042] The steel ring transfer mechanism 4 is used to transfer the steel ring 8 stacked on the steel ring rotary feeding mechanism 5 to the positioning tooling 202 to realize the sleeving of the stator core 7;

[0043] The steel ring pressing mechanism 6 is used to perform a pressing operation on the positioning tooling 202 that moves to its working area to realize the pressing connection between the steel ring 8 and the stator core 7, and further form an integral body between the steel ring 8 and the stator core 7.

[0044] Working principle:

[0045] The positioning tooling 202 carries the stator core 7 and is displaced to the working area of the core flattening mechanism 3 under the drive of the linear actuator assembly 201. The core flattening mechanism 3 works to apply a downward pressure to each core 701 placed in the positioning tooling 202, so that their tops are all at the same horizontal plane, thereby completing the flattening process;

[0046] The linear actuator assembly 201 continues to drive the positioning tooling 202 to be displaced to the steel ring transfer and loading area. The steel ring transfer mechanism 4 picks up the steel ring 8 from the steel ring rotary feeding mechanism 5 in advance. After the flattened stator core 7 arrives, the steel ring 8 is sleeved on the stator core 7;

[0047] The linear actuator assembly 201 continues to drive the positioning tooling 202 to be displaced to the working area of the steel ring pressing mechanism. The steel ring pressing mechanism 6 applies a downward pressure to the steel ring 8 so that it is only sleeved on the stator core 7, thereby completing the crimping of the stator core 7 and the steel ring 8.

[0048] After the crimping is completed, the linear actuator assembly 201 continues to drive the positioning tooling 202 to move forward so that the external material transfer mechanism removes the crimped product. Then the positioning tooling 202 continues to return to its original position and repeats the above process, thereby realizing continuous automated work.

[0049] As Figure 1 shown, the frame assembly 1 includes a frame 101, a table top plate 102 and a lower sealing plate 103. The frame 101, the table top plate 102 and the lower sealing plate 103 are connected to each other to form an installation cabinet, and a pneumatic device is arranged inside the installation cabinet for controlling the work of each functional mechanism in the system.

[0050] As Figure 4 shown, in this embodiment, the linear actuator assembly 201 includes a material transfer table plate 203. A pair of linear guide rails 204 are symmetrically arranged on the material transfer table plate 203. A synchronous belt transmission assembly 205 is arranged between the two linear guide rails 204. The positioning tooling 202 is arranged on the synchronous belt transmission assembly 205, and the positioning tooling 202 is also slidably connected to the two linear guide rails 204.

[0051] Specifically, the synchronous belt transmission assembly 205 includes a symmetrically arranged front synchronous wheel seat 207 and a rear synchronous wheel seat 208. Synchronous wheels 209 are movably arranged on the front synchronous wheel seat 207 and the rear synchronous wheel seat 208 respectively. A synchronous belt 210 is arranged between the two synchronous wheels 209. Any one of the synchronous wheels 209 is driven by a synchronous wheel motor 206, thereby driving the synchronous belt 210 to move the positioning tooling 202 to perform a linear reciprocating motion on the linear guide rail 204.

[0052] The positioning tooling 202 includes a positioning support plate 211 that is slidably connected to the two linear guide rails 204 and fixedly connected to the synchronous belt 210. A stator core socket 212 for inserting the stator core 7 is arranged on the positioning support plate 211;

[0053] A pair of positioning steel pins 213 are arranged on both sides of the stator core socket 212 for positioning the steel ring 8 so that the steel ring 8 can accurately sleeve the stator core 7.

[0054] As Figure 5 shown, in this embodiment, the steel ring transfer mechanism 4 includes a steel ring transfer bracket 401 fixedly connected to the frame assembly 1. A transverse transfer module 402 is arranged on the steel ring transfer bracket 401. A lifting module 404 is arranged on the transverse sliding seat 403 of the transverse transfer module 402. A steel ring cylinder gripper 406 with a downward opening is arranged on the lifting sliding seat 405 of the lifting module 404 for gripping the steel ring 8 stacked on the steel ring rotary feeding mechanism 5.

[0055] As Figure 2 and Figure 3 shown, in this embodiment, the steel ring rotary feeding mechanism 5 includes a steel ring turntable 501 arranged on the surface of the frame assembly 1. A number of steel ring stacking racks 502 are equidistantly arranged on the steel ring turntable 501. The steel rings 8 are longitudinally stacked on the steel ring stacking racks 502;

[0056] The steel ring rotary feeding mechanism 5 further includes a steel ring lifting assembly 503 arranged adjacent to the position of the steel ring transfer mechanism 4;

[0057] The steel ring lifting assembly 503 is located at the bottom side of the steel ring turntable 501 and includes a steel ring lifting bracket 504 fixedly connected to the frame assembly 1 and a steel ring lifting push rod 505 connected through the steel ring lifting bracket 504. A steel ring top rod 506 that can act on the lowermost steel ring 8 on the steel ring stacking rack 502 is arranged at the piston end of the steel ring lifting push rod 505;

[0058] Specifically, driven by the steel ring lifting push rod 505, the steel ring push rod 506 can act on the steel ring 8 on the steel ring blanking rack 502 rotated to its working position, and lift the steel ring 8 at the top layer to the height that can be clamped by the steel ring transfer mechanism 4, facilitating the picking of the steel ring 8.

[0059] As the rotational drive of the steel ring turntable 501 in this embodiment, a rotary motor 507 can be used for driving.

[0060] As Figure 6 and Figure 7 shown, in this embodiment, the iron core leveling mechanism 3 includes a leveling support 301 arranged on the steel ring transfer support 401. A leveling electric cylinder 302 is arranged on the leveling support 301, and a piston end of the leveling electric cylinder 302 is connected with an elastic leveling needle assembly 303. The elastic leveling needle assembly 303 directly acts on the stator iron core 7 in the positioning tooling 202 under the drive of the leveling electric cylinder 302, realizing elastic flattening of the iron core 701.

[0061] Among them, as Figure 7 shown, the elastic leveling needle assembly 303 includes a leveling upper support plate 304 and a leveling lower support plate 305 arranged up and down. The leveling upper support plate 304 and the leveling lower support plate 305 are connected by a leveling support column 306 arranged at the axis center;

[0062] A plurality of leveling needles 307 are arranged on the leveling lower support plate 305, and a plurality of needle through holes 308 for the leveling needles 307 to penetrate are formed on the leveling upper support plate 304; a rectangular spring 309 is sleeved on the leveling needle 307. The top end of the rectangular spring 309 abuts against the bottom surface of the leveling upper support plate 304, and the bottom end of the rectangular spring 309 abuts against the surface of the leveling lower support plate 305.

[0063] During the crimping process, the leveling electric cylinder 302 drives the elastic leveling needle assembly 303 to act on the steel ring 8 and the stator iron core 7 directly below. During the crimping process, each leveling needle 307 corresponds to an iron core 701, and the rectangular spring 309 can prompt the leveling needle 307 to act on the top of the iron core 701 in an elastic contact manner, thereby realizing elastic leveling and better protecting the iron core 701.

[0064] As Figure 8 shown, the steel ring pressing mechanism 6 includes a plurality of pressing support columns 601 vertically connected to the surface of the frame assembly 1. An electric cylinder fixing plate 602 is arranged at the top of each pressing support column 601. A pressing ring electric cylinder 603 is arranged on the electric cylinder fixing plate 602, and a piston of the pressing ring electric cylinder 603 penetrates through the electric cylinder fixing plate 602 and is connected with a pressing head assembly 604;

[0065] Specifically, as Figure 9 shown, the indenter assembly 604 includes an indenter fixing plate 605 movably sleeved on the press-fitting support column 601. A bottom surface of the indenter fixing plate 605 is provided with an indenter 606. A surface of the indenter fixing plate 605 is provided with an indenter connection seat 607 having a cavity. A weighing sensor 608 connected to the indenter fixing plate 605 is disposed in the indenter connection seat 607;

[0066] A floating joint 609 capable of connecting to a piston end of the pressing ring electric cylinder 603 is further disposed in the indenter connection seat 607. The floating joint 609 can act on a adapter 610 connected to the weighing sensor 608.

[0067] Through this structure, not only can the lifting control of the indenter 606 be realized, but also the pressure value of the indenter 606 during the press-fitting process can be obtained through the weighing sensor 608, so as to better control the press-fitting work.

[0068] The above is only to illustrate the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A stator core steel ring pressing device, comprising a frame assembly (1), characterized in that: The surface of the frame assembly (1) is provided with a stator iron core transfer mechanism (2), an iron core flattening mechanism (3), a steel ring transfer mechanism (4), a steel ring rotating feeding mechanism (5) and a steel ring pressing mechanism (6); The stator core transfer mechanism (2) comprises a linear actuator component (201) and a positioning fixture (202); the stator core (7) is placed in the positioning fixture (202) and can perform linear motion under the drive of the linear actuator component (201); The iron core flattening mechanism (3) is used to flatten the stator iron core (7); The steel ring transfer mechanism (4) is used to transfer the steel rings (8) stacked on the steel ring rotating feeding mechanism (5) to the positioning tool (202) to achieve sleeve installation on the stator core (7); The steel ring pressing mechanism (6) is used to perform a pressing operation on the positioning tool (202) moved to its working area, thereby achieving the pressing of the steel ring (8) and the stator core (7).

2. A stator core steel ring pressing device according to claim 1, characterized in that: The linear actuator component (201) includes a material transfer platform (203), a pair of linear guide rails (204) are symmetrically arranged on the material transfer platform (203), a synchronous belt transmission component (205) is arranged between the two linear guide rails (204), the positioning tool (202) is arranged on the synchronous belt transmission component (205), and the positioning tool (202) is also slidably connected with the two linear guide rails (204).

3. A stator core steel ring pressing device according to claim 2, characterized in that: The synchronous belt transmission component (205) comprises a synchronous wheel front seat (207) and a synchronous wheel rear seat (208) which are symmetrically arranged, and synchronous wheels (209) are movably arranged on the synchronous wheel front seat (207) and the synchronous wheel rear seat (208), respectively, and a synchronous belt (210) is arranged between the two synchronous wheels (209); any one of the synchronous wheels (209) is driven by a synchronous wheel motor (206).

4. A stator core steel ring pressing device according to claim 2, characterized in that: The positioning fixture (202) comprises a positioning support plate (211) which is slidably connected to the two linear guide rails (204) and fixedly connected to the synchronous belt (210); the positioning support plate (211) is provided with a stator core socket (212) capable of being plugged into the stator core (7); A pair of positioning steel needles (213) are provided on both sides of the stator core socket (212) for positioning the steel ring (8).

5. The stator core steel ring pressing device according to claim 1, characterized in that: The steel ring transfer mechanism (4) comprises a steel ring transfer bracket (401) fixedly connected to the frame assembly (1), a transverse transverse module (402) is arranged on the steel ring transfer bracket (401), a lifting module (404) is arranged on the transverse slide (403) of the transverse module (402), and a steel ring cylinder clamp (406) with its opening facing downward is arranged on the lifting slide (405) of the lifting module (404).

6. A stator core steel ring pressing device according to claim 1 or 5, characterized in that: The steel ring rotating feeding mechanism (5) comprises a steel ring rotating disk (501) arranged on the surface of the frame assembly (1), and the steel ring rotating disk (501) A plurality of steel ring stacking racks (502) are arranged at equal intervals on the upper portion, and the steel rings (8) are stacked longitudinally on the steel ring stacking racks (502); The steel ring rotary feeding mechanism (5) further comprises a steel ring lifting assembly (503) arranged at a position adjacent to the steel ring transfer mechanism (4); The steel ring lifting assembly (503) is located on the bottom side of the steel ring turntable (501), and includes a steel ring lifting bracket (504) fixedly connected to the frame assembly (1), and a steel ring lifting push rod (505) connected via the steel ring lifting bracket (504), wherein the piston end of the steel ring lifting push rod (505) is provided with a steel ring lifting rod (506) capable of acting on the steel ring (8) at the bottom side of the steel ring material stacking rack (502).

7. A stator core steel ring pressing device according to claim 5, characterized in that: The iron core leveling mechanism (3) comprises a leveling bracket (301) arranged on the steel ring transfer bracket (401), a leveling electric cylinder (302) is arranged on the leveling bracket (301), and a piston end of the leveling electric cylinder (302) is connected to an elastic leveling pressure needle assembly (303).

8. A stator core steel ring pressing device according to claim 7, characterized in that: The elastic flattening needle assembly (303) comprises a flattening upper support plate (304) and a flattening lower support plate (305) arranged up and down, and the flattening upper support plate (304) and the flattening lower support plate (305) are connected by a flattening support column (306) arranged at the axis; A plurality of leveling pressure needles (307) are arranged on the leveling lower support plate (305), and a plurality of pressure needle through holes (308) for the leveling pressure needles (307) to pass through are opened on the leveling upper support plate (304); a rectangular spring (309) is sleeved on the leveling pressure needle (307), the top end of the rectangular spring (309) is in contact with the bottom surface of the leveling upper support plate (304), and the bottom end of the rectangular spring (309) is in contact with the surface of the leveling lower support plate (305).

9. The stator core steel ring pressing device according to claim 1, characterized in that: The steel ring pressing mechanism (6) comprises a plurality of pressing pillars (601) vertically connected to the surface of the frame assembly (1), the top of each pressing pillar (601) is provided with an electric cylinder fixing plate (602), a pressing ring electric cylinder (603) is provided on the electric cylinder fixing plate (602), and the piston of the pressing ring electric cylinder (603) penetrates the electric cylinder fixing plate (602) and is connected to the pressing head assembly (604); The pressure head assembly (604) comprises a pressure head fixing plate (605) movably mounted on the press-fitting support (601), a pressure head (606) is arranged on the bottom surface of the pressure head fixing plate (605), a pressure head connecting seat (607) with a cavity is arranged on the surface of the pressure head fixing plate (605), and a weighing sensor (608) connected to the pressure head fixing plate (605) is arranged in the pressure head connecting seat (607); A floating joint (609) that can be connected to the piston end of the pressure ring electric cylinder (603) is also provided in the pressure head connection seat (607), and the floating joint (609) can act on the adapter (610) connected to the weighing sensor (608).

10. The stator core steel ring pressing device according to claim 1, characterized in that: The frame assembly (1) comprises a frame (101), a table panel (102) and a lower cover plate (103).

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