Motor stator press fitting device
By using the positioning and lifting components of the motor stator press-fitting device, the problem of frame damage caused by inaccurate placement of the stator core is solved, and the coaxial press-fitting of the stator core and the frame is achieved, thus avoiding damage to the frame and stator windings.
Patent Information
- Application Number
- CN202520168969.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In existing technology, the stator core cannot be aligned with the outer casing, leading to damage to the machine base during the pressing process.
A motor stator pressing device is adopted, which includes a worktable, a pressing component, a positioning component, and a lifting component. The positioning component is positioned coaxially with the machine base, and the lifting component keeps the stator core coaxial with the machine base, thus avoiding damage to the machine base during the pressing process. The pressing fixture also avoids interference with the stator winding.
This effectively avoids damage to the machine base and stator windings during the pressing process, ensuring that the stator core is coaxial with the machine base, and improving the accuracy and reliability of the pressing process.
Smart Images
Figure CN223809669U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor stator assembly technical field especially a motor stator press fitting device. BACKGROUND
[0002] The motor stator is composed of a stator core, a stator winding and a machine base. During production, the stator winding is first fixed with the stator core (the name of the fixed stator core is defined as the stator inner core), and then the stator inner core is press-fitted into the machine base by a press-fitting device. During the press-fitting process, the staff places the machine base under the press, then places the stator inner core at the upper end of the machine base, and then starts the press and presses the stator inner core into the machine base through the press.
[0003] However, in actual production, the staff cannot guarantee that the position of the stator inner core is aligned with the shell, and the central axis of the stator inner core may be inclined, i.e. it cannot be guaranteed that the stator winding and the stator core are coaxial with the machine base, resulting in damage to the machine base during the press-fitting process. SUMMARY
[0004] The main purpose of the utility model is to provide a motor stator press fitting device to solve the problem that the position of the stator inner core cannot be guaranteed to be aligned with the shell in the prior art, resulting in damage to the machine base during the press-fitting process.
[0005] To solve the above problems, the utility model adopts the following technical scheme: a motor stator press fitting device, comprising a workbench, a press-fitting assembly erected above the workbench and a positioning assembly arranged below the workbench, a positioning ring for placing the machine base is fixed on the workbench, the central axis of the positioning assembly is collinear with the central axis of the positioning ring, a through slot is formed in the workbench inside the positioning ring, the positioning assembly is slidably connected with the through slot, and a lifting assembly is arranged below the positioning assembly for driving the positioning assembly to ascend or descend.
[0006] Further, the positioning assembly comprises a positioning cylinder, a screw rod coaxially and rotatably arranged in the positioning cylinder, and a first motor for driving the screw rod to rotate, at least one moving ring is screwed on the screw rod, a plurality of support rods are rotatably connected to the moving ring, the plurality of support rods are uniformly arranged along the circumference of the moving ring, a through hole is formed in the side wall of the positioning cylinder corresponding to each support rod, and the free end of each support rod extends obliquely away from the moving ring and is slidably connected with the corresponding through hole.
[0007] Further, one end of each support rod away from the moving ring is rotatably connected with a pulley.
[0008] Further, the bottom of the positioning cylinder is fixedly provided with a bottom plate, the first motor is fixedly arranged on the bottom surface of the bottom plate, and the output end of the first motor is fixedly connected with the screw rod through the bottom plate.
[0009] Further, the lifting assembly comprises a first telescopic cylinder arranged vertically and a support plate fixedly arranged at the output end of the first telescopic cylinder, the support plate is provided with a gap for accommodating the first motor between the support plate and the bottom plate, and the top end of the support plate is fixedly provided with a plurality of connecting rods, and the top end of the connecting rod is fixedly connected with the bottom surface of the bottom plate.
[0010] Further, the upper portion of the workbench is fixedly provided with a U-shaped frame, the pressing assembly comprises a second telescopic cylinder fixedly arranged on the top surface of the U-shaped frame and a pressing plate arranged in the U-shaped frame, the output end of the second telescopic cylinder is fixedly connected with the pressing plate through the top surface of the U-shaped frame, and the bottom surface of the pressing plate is fixedly provided with a pressing tool.
[0011] Further, the pressing tool is a circular cylinder which is hollow and axially through, the inner diameter of the pressing tool is greater than the inner diameter of the stator winding, and the outer diameter of the pressing tool is smaller than the inner diameter of the machine base.
[0012] The motor stator pressing device has the advantages that:
[0013] 1. The pressing assembly is arranged in cooperation with the lifting assembly and the positioning assembly, so that the stator inner core is coaxial with the machine base at all times during the pressing process, and damage to the machine base during the pressing process is avoided.
[0014] 2. The pressing tool is arranged to avoid interference between the pressing tool and the stator winding, thereby avoiding damage to the stator winding during the pressing process of the stator inner core.
[0015] 3. The pulley is rotatably connected to the end of each support rod away from the moving ring, so as to avoid damage to the stator inner core during the pressing process of the stator inner core. BRIEF DESCRIPTION OF DRAWINGS
[0016] The motor stator pressing device will be further described in detail below in combination with the drawings and specific embodiments.
[0017] Figure 1 It is a perspective view of the motor stator pressing device of the utility model.
[0018] Figure 2 It is a perspective view of the motor stator pressing device of the utility model. Figure 1 A-A view.
[0019] MARKING DESCRIPTION
[0020] 1, workbench; 11, let the mouth; 2, compression assembly; 21, second telescopic cylinder; 22, pressing plate; 23, compression tooling; 3, positioning assembly; 31, positioning cylinder; 311, through hole; 32, screw; 33, moving ring; 34, support rod; 35, pulley; 36, first motor; 37, bottom plate; 4, lifting assembly; 41, first telescopic cylinder; 42, support plate; 43, gap; 44, connecting rod; 5, positioning ring; 6, U-shaped frame; 7, machine base; 8, stator core; 9, stator winding. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other manners different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0022] Please refer to Figures 1 to 2 As shown in the figure, a motor stator press-fitting device, including workbench 1, compression assembly 2, positioning assembly 3 and lifting assembly 4, the positioning ring 5 is fixed on the workbench 1, to position the machine base 7 through the positioning ring 5, the compression assembly 2 is erected above the workbench 1, for press-fitting the stator inner core (the combination of stator winding and stator core after assembly) into the machine base 7. The central axis of the positioning assembly 3 is collinear with the central axis of the positioning ring 5, the positioning assembly 3 is set below the workbench 1 in normal state, the workbench 1 is provided with a let-out mouth 11 passing through up and down in the workbench 1 inside the positioning ring 5, the positioning assembly 3 is slidingly connected with the let-out mouth 11, the lifting assembly 4 is arranged below the positioning assembly 3 for driving the positioning assembly 3 to rise or descend.
[0023] When implemented, the staff places the machine base 7 in the positioning ring 5, and then places the stator inner core on the machine base 7, at this time, the lifting assembly 4 is started, the lifting assembly 4 drives the positioning assembly 3 to extend to the inside of the stator inner core through the let-out mouth 11, and the stator inner core is limited. It should be noted that, since the central axis of the positioning assembly 3 is collinear with the central axis of the positioning ring 5, the stator inner core can be coaxial with the machine base 7 through the positioning assembly 3, so as to avoid damage to the machine base 7 during press-fitting. Then the staff starts the compression assembly 2, the compression assembly 2 moves the stator inner core to the inside of the machine base 7 by extruding the stator inner core, and at the same time, the stator inner core is pressed downward by the compression assembly 2, and the lifting assembly 4 synchronously drives the positioning assembly 3 to move downward in the direction away from the stator inner core, so as to keep the stator inner core coaxial with the machine base 7 at all times.
[0024] In the embodiment, the upper portion of the workbench 1 is fixedly provided with a bracket 6, and the pressing assembly 2 is fixedly provided on the upper portion of the workbench 1 through the bracket 6. The pressing assembly 2 comprises a second telescopic cylinder 21, a pressing plate 22 and a pressing tool 23. The second telescopic cylinder 21 is vertically fixedly provided on the top surface of the bracket 6. The pressing plate 22 is arranged in the bracket 6, that is, the pressing plate 22 is suspended between the top surface of the bracket 6 and the workbench 1. The output end of the second telescopic cylinder 21 is fixedly connected with the pressing plate 22 through the top surface of the bracket 6, so as to drive the pressing plate 22 to move up and down through the second telescopic cylinder 21. The pressing tool 23 is fixedly provided on the bottom surface of the pressing plate 22. In the embodiment, the pressing tool 23 is a circular cylinder which is hollow and axially penetrable. The inner diameter of the pressing tool 23 is greater than the inner diameter of the stator winding 9, and the outer diameter of the pressing tool 23 is less than the inner diameter of the stator core 7.
[0025] In the implementation, the second telescopic cylinder 21 drives the pressing plate 22 and the pressing tool 23 to move downward, so that the bottom surface of the pressing tool 23 abuts against the top end of the stator core 8. Since the inner diameter of the pressing tool 23 is greater than the inner diameter of the stator winding 9, the interference between the pressing tool 23 and the stator winding 9 is avoided, and the damage to the stator winding 9 caused by the pressing assembly 2 during the extrusion of the stator core is avoided.
[0026] In the embodiment, the positioning assembly 3 comprises a positioning cylinder 31, a screw rod 32 and a first motor 36. The positioning cylinder 31 is a cylindrical structure which is hollow. The screw rod 32 is coaxially and rotatably arranged in the positioning cylinder 31. The first motor 36 is arranged below the positioning cylinder 31 and is used to drive the screw rod 32 to rotate. Specifically, the bottom portion of the positioning cylinder 31 is fixedly provided with a bottom plate 37. The first motor 36 is fixedly provided on the bottom surface of the bottom plate 37. The output end of the first motor 36 is fixedly connected with the bottom end of the screw rod 32 through the bottom plate 37. Figure 2 As shown in the figure, in the embodiment, two moving rings 33 are arranged, and the two moving rings 33 are arranged in the axial direction of the screw rod 32. Each moving ring 33 is rotatably connected with a plurality of support rods 34. The plurality of support rods 34 are uniformly arranged in the circumferential direction of the moving ring 33. The free ends of the plurality of support rods 34 extend in the direction away from the moving ring 33. The side wall of the positioning cylinder 31 is provided with a through hole 311 corresponding to each support rod 34. Each positioning rod is slidably connected with the corresponding through hole 311.
[0027] In the implementation, the lifting assembly 4 drives the positioning assembly 3 to move to the inside of the stator core 8. Then, the first motor 36 is started. The first motor 36 drives the screw rod 32 to rotate. At this time, the moving ring 33 which is screwed with the screw rod 32 will rise or fall in the axial direction of the screw rod 32, thereby driving the plurality of support rods 34 to rotate along the moving ring 33. When the central axes of the plurality of support rods 42 are close to the horizontal state, the ends of the plurality of support rods 42 away from the moving ring 33 will abut against the inner wall of the stator core, thereby achieving the coaxial purpose of the stator core and the stator core.
[0028] It should be noted that the support rod 34 is in an inclined state in the normal state, and the length of the support rod 34 is greater than the distance between the moving ring 33 and the inner wall of the stator inner core, so that when the moving ring 33 rises or falls, the inclination angle of the support rod 34 can be adjusted, thereby driving the free end of the support rod 34 to move towards the inner wall of the stator inner core. Specifically, as shown in Figure 2 when positioning the stator inner core is needed, the screw rod 32 is rotated clockwise to move the moving ring 33 towards the top end of the screw rod 32, that is, the moving ring 33 moves upwards, at this time the support rod 34 is gradually rotated from the inclined state to the horizontal state, until the free end of the support rod 34 abuts against the inner wall of the stator inner core.
[0029] When the stator inner core is completed with the base 7, the motor stator needs to be removed, the first motor 36 is started, the first motor 36 drives the screw rod 32 to rotate reversely, at this time the moving ring 33 moves downwards, and simultaneously drives the plurality of support rods 34 to move away from the stator inner core, until the plurality of support rods 34 are accommodated in the through hole 311 of the positioning cylinder 31, and no longer abut against the inner wall of the stator inner core, at this time the worker can take out the press-fitted motor stator. It should be noted that during the rotation of the screw rod 32, since the plurality of support rods 34 are accommodated in the plurality of through holes 311, the moving ring 33 cannot rotate with the screw rod 32, but can only move along the axial direction of the screw rod 32. Preferably, the end of each support rod 34 away from the moving ring 33 is rotatably connected with the pulley 35, so as to avoid damaging the stator inner core during the press-fitting of the stator inner core.
[0030] In the embodiment, the lifting assembly 4 comprises a first telescopic cylinder 41, a support plate 42 and a plurality of connecting rods 44, the first telescopic cylinder 41 is vertically arranged, the output end of the first telescopic cylinder 41 faces the workbench 1, the support plate 42 is fixedly arranged on the output end of the first telescopic cylinder 41, the gap 43 for accommodating the first motor 36 is arranged between the support plate 42 and the bottom plate 37, so as to accommodate the first motor 36, and the plurality of connecting rods 44 are vertically arranged on the outer edge of the top end of the support plate 42, and the top end of the connecting rod 44 is fixedly connected with the bottom surface of the bottom plate 37. In the implementation, the first telescopic cylinder 41 sequentially drives the support plate 42, the plurality of connecting rods 44 and the bottom plate 37 to perform lifting operation, thereby driving the positioning assembly 3 to perform lifting.
[0031] The utility model discloses in specific implementation, staff places frame 7 in the positioning ring 5, and then places stator inner core on frame 7, and then starts lifting assembly 4, and lifting assembly 4 drives the positioning cylinder 31 of positioning assembly 3 to extend to the inside of stator inner core, and then starts first motor 36, and first motor 36 drives screw rod 32 to rotate, and the moving ring 33 moves upwards in the process of screw rod 32 rotating, and then adjusts the inclination angle of multiple support rods 34, until the pulley 35 of rotating connection at the free end of multiple support rods 34 and the inner wall of stator inner core abuts, at this moment, stator inner core and frame 7 are in coaxial state. At this moment, staff starts second telescopic cylinder 21, and second telescopic cylinder 21 drives pressing plate 22 and press fit tool 23 to move downwards, makes the bottom surface of press fit tool 23 and the top end of stator core 8 abut, and extrudes stator inner core downwards, and lifting assembly 4 synchronously drives positioning assembly 3 to move downwards in the direction of being away from stator inner core while second telescopic cylinder 21 extrudes stator inner core, to reach the purpose of keeping stator inner core and frame 7 coaxial in the press fitting process.
[0032] The above description is only the preferred embodiment of the utility model, obviously, the described embodiment only is a part of the embodiment of the utility model, is not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making creative labor belong to the range of protection of the utility model.
Claims
1. An electric machine stator press fitting device characterized by comprising: The utility model provides a press-fit assembly (2) is set up above the workbench (1), and the positioning assembly (3) is set below the workbench (1), the positioning ring (5) for placing the machine base (7) is fixed on the workbench (1), the central axis of positioning assembly (3) is collinear with the central axis of positioning ring (5), the workbench (1) is set up in the positioning ring (5) inside and is provided with the gap (11) that passes through up and down, and the positioning assembly (3) is slidably connected with the gap (11), and the lower side of positioning assembly (3) is provided with the lifting assembly (4) for driving the positioning assembly (3) to ascend or descend.
2. The motor stator press fitting device according to claim 1, wherein The positioning assembly (3) includes a positioning cylinder (31), a screw (32) coaxially and rotatably arranged in the positioning cylinder (31), and a first motor (36) for driving the screw (32) to rotate. The screw (32) is screwed with at least one moving ring (33). The moving ring (33) is rotatably connected with a plurality of support rods (34). The plurality of support rods (34) are uniformly arranged along the circumference of the moving ring (33). The side wall of the positioning cylinder (31) is provided with a through hole (311) corresponding to each support rod (34). The free end of each support rod (34) extends away from the moving ring (33) in a direction inclined away from the moving ring (33), and each positioning rod is slidably connected with the corresponding through hole (311).
3. The motor stator press fitting device according to claim 2, wherein Each end of the support rod (34) away from the moving ring (33) is rotatably connected with a pulley (35).
4. The motor stator press fitting device according to claim 2, wherein The bottom of the positioning cylinder (31) is fixedly provided with a bottom plate (37). The first motor (36) is fixedly arranged on the bottom surface of the bottom plate (37). The output end of the first motor (36) penetrates through the bottom plate (37) and is fixedly connected with the screw (32).
5. The motor stator press fitting apparatus according to claim 4, wherein The lifting assembly (4) includes a first telescopic cylinder (41) arranged vertically and a support plate (42) fixedly arranged on the output end of the first telescopic cylinder (41). The support plate (42) and the bottom plate (37) have a gap (43) for accommodating the first motor (36). The top end of the support plate (42) is vertically fixedly provided with a plurality of connecting rods (44). The top end of the connecting rod (44) is fixedly connected with the bottom surface of the bottom plate (37).
6. The motor stator press fitting device according to claim 1, wherein The workbench (1) is fixedly provided with a U-shaped frame (6) above. The press-fit assembly (2) includes a second telescopic cylinder (21) fixedly arranged vertically on the top surface of the U-shaped frame (6) and a pressing plate (22) arranged in the U-shaped frame (6). The output end of the second telescopic cylinder (21) penetrates through the top surface of the U-shaped frame (6) and is fixedly connected with the pressing plate (22). The bottom surface of the pressing plate (22) is fixedly provided with a press-fit tool (23).
7. The motor stator press fitting apparatus according to claim 6, wherein The press-fit tool (23) is a hollow circular cylinder with axial through hole. The inner diameter of the press-fit tool (23) is larger than the inner diameter of the stator winding (9), and the outer diameter of the press-fit tool (23) is smaller than the inner diameter of the machine base (7).