Stator flattening device

Abstract

The utility model provides a kind of stator flattening device, including side wall leveling mechanism and end leveling mechanism.Side wall leveling mechanism includes first driver, the guiding member of being circumferentially arranged in the output end of first driver and can be moved along vertical direction, with guiding member swing joint and have horizontal direction and vertical direction moving tendency under the drive of guiding member flat die, and for limiting the first limiting component of flat die vertical movement.End leveling mechanism includes second driver, jacking piece and the downer of the output end of connecting second driver.Sidestall group circle is circumferentially surrounded by flat die, first driver can promote guiding member vertical movement, to make flat die horizontal movement flatten the core side of stator group circle, second driver can promote downer, cooperate jacking piece and flatten the core end of stator group circle.The stator flattening device provided by the utility model has the advantages of good leveling effect and high leveling efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of motor assembly technology, and more specifically, it relates to a stator flattening device. Background Technology

[0002] The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by magnetic lines of force in the rotating magnetic field, thereby generating (outputting) current. The stator is the stationary part of the motor or generator, and it consists of three parts: the stator core, the stator windings, and the frame. The stator core is the main component of the stator. Stator cores are generally divided into two types: integral and split. In the assembly and production process of a stator with a split stator core, each core is first wound, and then the multiple wound core pieces are assembled into a circle. This requires two processes: pre-circle assembly and full circle assembly. After that, the assembled cores are welded together, and finally the assembled stator is pressed into the housing.

[0003] In the existing technology, the stator core after the assembly is prone to surface unevenness, which causes some stator cores to deform due to excessive force during the pressing process. This results in the magnetic field generated during rotor operation not reaching the optimal state, leading to a decrease in the motor's output torque. If the stator core is severely deformed, abnormal noise will occur during operation, affecting the motor's performance and service life. Utility Model Content

[0004] The purpose of this invention is to provide a stator flattening device to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a stator flattening device, comprising:

[0006] The sidewall leveling mechanism includes a first driver, a guide circumferentially disposed at the output end of the first driver and capable of moving in the vertical direction, a flattening mold movably connected to the guide and having a horizontal and vertical movement tendency, and a first limiting component for restricting the vertical movement of the flattening mold.

[0007] The stator assembly circle is circumferentially surrounded by the flattening mold, and the first driver can push the guide to move vertically so that the flattening mold moves horizontally to flatten the iron core of the stator assembly circle.

[0008] In one embodiment, the guide member is provided with a guide rod, and the flattening mold is provided with a guide groove for cooperating with the guide rod. The guide groove is a straight inclined groove, and the guide rod is movably disposed in the guide groove. When the guide rod moves in the guide groove, the flattening mold moves horizontally.

[0009] In one embodiment, the first limiting component includes a fixed first limiting plate and a second limiting plate disposed parallel to the first limiting plate. The first limiting plate is provided with a limiting groove for mounting the flattening mold. The flattening mold is clamped between the first limiting plate and the second limiting plate and is capable of moving along the limiting groove toward the center direction of the circumferential arrangement of the flattening mold.

[0010] In one embodiment, the first limiting component further includes a limiting ring for limiting the distance the flattening mold moves in the opposite direction toward the center direction, the limiting ring being fitted onto the outer wall of the flattening mold.

[0011] In one embodiment, the flattening mold has an extension on its inner side, and the extension and the inner wall of the flattening mold together define a receiving groove for clamping the stator assembly circular sidewall, so as to drive the stator assembly circular sidewall to move toward the center direction of the circumferential arrangement of the flattening mold or the opposite direction of the center direction.

[0012] In one embodiment, the flattening mold is further provided with a receiving groove for accommodating the lifting member, which can move with the flattening mold.

[0013] In one embodiment, the receiving groove is provided with an elastic element for connecting the lifting member, and the lifting member can pass through the flattening mold under the action of the elastic element to press against the lower end of the stator assembly circle.

[0014] In one embodiment, the inner side of the flattening mold is provided with limiting ribs and / or limiting grooves for restricting the rotation of the stator assembly circle around the vertical axis, and the stator assembly circle is provided with corresponding protrusions and / or grooves. The protrusions are used to cooperate with the limiting grooves, and the grooves are used to cooperate with the limiting ribs.

[0015] In one embodiment, the sidewall leveling mechanism further includes a second limiting component for limiting the travel of the output end of the first driver. The second limiting component includes a limiting block disposed at the output end of the first driver and capable of limiting the upward displacement of the output end of the first driver, and a buffer block disposed on a fixed base for mounting the first driver. The buffer block can limit the downward displacement of the output end of the first driver and buffer the impact force of the limiting block.

[0016] In one embodiment, the stator flattening device further includes an end leveling mechanism, comprising a second driver, a lifting member for pressing against the lower end of the stator assembly circle, and a pressing member disposed at the output end of the second driver and capable of moving toward the stator assembly circle.

[0017] The advantages of the stator flattening device provided by this utility model are as follows:

[0018] 1. The stator assembly circle is held and placed in the receiving slot of the flattening mold by the robot arm. The extension of the flattening mold and its inner side wall clamp the stator assembly circle. Multiple flattening molds surround the stator assembly circle circumferentially. In the initial state, the output end of the first driver is in the extended position. After the stator assembly circle is placed, the output end of the first driver retracts downward, thereby driving the guide to move downward. The guide rod of the guide moves in the guide groove of the flattening mold. Since the guide groove is a straight inclined groove, when the vertical movement of the flattening mold is restricted by the first limiting component, the flattening mold can only move in the horizontal direction, that is, the flattening mold retracts inward to flatten the side wall of the stator assembly circle.

[0019] 2. The lower end of the stator assembly circle placed in the receiving slot of the flattening mold is held up by the lifting member. In the initial state, the output end of the second driver is in the retracted position. After the stator assembly circle is placed, the output end of the second driver extends downward, thereby driving the pressing member to move downward and flatten the end of the stator assembly circle.

[0020] Compared with the prior art, the stator flattening device of this utility model has the advantages of good flattening effect and high flattening efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 Schematic diagram of the stator flattening device provided in the embodiments of this utility model Figure 1 ;

[0023] Figure 2 for Figure 1 The front view of the stator flattening device shown;

[0024] Figure 3 for Figure 2 A cross-sectional view of the stator flattening device shown in Figure AA;

[0025] Figure 4 for Figure 1 The diagram shows the structure of the guide component of the stator flattening device.

[0026] Figure 5 for Figure 1 The schematic diagram of the flattening mold of the stator flattening device shown. Figure 1 ;

[0027] Figure 6 for Figure 1The schematic diagram of the flattening mold of the stator flattening device shown. Figure 2 ;

[0028] Figure 7 for Figure 1 The diagram shows the structure of the first limiting plate of the stator flattening device.

[0029] The following are the labeling elements in the figure:

[0030] 1. Base; 2. First driver; 3. Drive plate; 4. Guide component; 5. Guide rod; 6. Clamping block; 7. Flattening mold; 8. Straight inclined groove; 9. Extension; 10. Receiving groove; 11. Elastic component; 12. Lifting component; 13. Pressing component; 14. Slider; 15. First limiting assembly; 16. First limiting plate; 17. Second limiting plate; 18. Limiting ring; 19. First support column; 20. Second support column; 21. Second limiting assembly; 22. Limiting block; 23. Buffer block; 24. Stator assembly circle. Detailed Implementation

[0031] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Example

[0035] This embodiment is a stator flattening device used to flatten the stator assembly circle 24 of a motor.

[0036] Reference Figures 1 to 3 As shown, the stator flattening device includes a base 1, a sidewall flattening mechanism, and an end flattening mechanism. The base 1 is fixed, and the sidewall flattening mechanism and the end flattening mechanism are mounted on the base 1.

[0037] 1. Sidewall leveling mechanism

[0038] Reference Figures 1 to 3 As shown, the sidewall leveling mechanism includes a first driver 2 (e.g., a cylinder, a motor, etc., a cylinder is used in this embodiment), a drive plate 3 (e.g., a circular plate, a square plate, etc., a circular plate is used in this embodiment), multiple guide members 4, multiple flattening molds 7 (corresponding to the number of guide members 4), a first limiting component 15 and a second limiting component 21.

[0039] The first driver 2 is mounted on the base 1. The cylinder push rod of the first driver 2 is connected to the lower end of the drive plate 3 and is located at the center. Multiple guides 4 are mounted on the upper end of the drive plate 3 and are arranged circumferentially around the center of the drive plate 3 so that the force applied by the first driver 2 to the drive plate 3 is more uniform.

[0040] The first limiting component 15 includes a first limiting plate 16 (e.g., a circular plate, a square plate, etc., a circular plate is used in this embodiment), a second limiting plate 17 (e.g., a hollow annular plate, a hollow square plate, etc., a hollow annular plate is used in this embodiment) and a limiting ring 18 (an elastic hollow ring, such as a rubber ring).

[0041] The first limiting plate 16 is mounted on the base 1 via a first support column 19 and is located above the drive plate 3. The first support column 19 passes through the drive plate 3 and provides guidance and stability for the movement of the drive plate 3. (Refer to...) Figure 7 As shown, the first limiting plate 16 has a through hole, and the guide member 4 passes through the through hole. The through hole has a guiding and stabilizing effect on the guide member 4. Above the first limiting plate 16, there are multiple limiting grooves arranged circumferentially around the center of the first limiting plate 16. The length direction of the limiting grooves points to the center of the first limiting plate 16. The flattening mold 7 is set in the limiting groove and can move along the length direction of the limiting groove.

[0042] The second limiting plate 17 is mounted on the first limiting plate 16 via the second support column 20, and the two are parallel and concentric. The flattening mold 7 is clamped by the first limiting plate 16 and the second limiting plate 17, so that the flattening mold 7 can only move in the horizontal direction.

[0043] The limiting ring 18 is fitted on the outside of the flattening mold 7. The limiting ring 18 is elastic and can limit the displacement of the flattening mold 7. Multiple flattening molds 7 can improve the consistency of displacement under the action of the limiting ring 18, ensuring that the flattening accuracy of each flattening mold 7 is the same or at least the same.

[0044] Guide component 4 and flattening mold 7 are movably connected; for details, refer to [reference needed]. Figure 4 As shown, the guide member 4 has a guide rod 5, and the flattening mold 7 has a straight inclined groove 8 (or an arc groove, stepped groove, etc.). The upper end of the straight inclined groove 8 is close to the center of the circumferential arrangement of the flattening mold 7. The guide rod 5 passes through the straight inclined groove 8 and can move within the straight inclined groove 8.

[0045] The second limiting component 21 is used to limit the travel of the output end of the first driver 2. The second limiting component 21 includes a limiting block 22 and a buffer block 23. The limiting block 22 is an L-shaped or T-shaped block with a protruding part. One end of the limiting block 22 is connected to the lower end of the driver plate 3, and the protruding part of the other end is used to contact the buffer block 23 mounted on the base 1. The base 1 is also provided with a buffer block 23 for contacting the driver plate 3.

[0046] The initial state is defined as the flattening mold 7 being in an outward expanding position, and the final state is defined as the opposite. In the initial state, the output end of the first driver 2 is extended upwards, and the guide rod of the guide member 4 is located at the upper end of the straight inclined groove 8. During the transition from the initial state to the final state, the output end of the first driver 2 retracts downwards, and the guide rod applies a force perpendicular to the inner wall of the straight inclined groove 8. According to the parallelogram law of forces, this force can be decomposed into a downward force and a force towards the center of the circumferential arrangement of the flattening mold 7 (i.e., a downward tendency and a leftward tendency). Due to the vertical limitation imposed by the first limiting component 15 on the flattening mold 7, the flattening mold 7 can only retract inwards, and multiple flattening molds 7 move synchronously, thereby simultaneously pushing the outer wall of the stator assembly circle 24, thus flattening the outer wall of the stator assembly circle 24. Repeating the flattening operation multiple times can improve the flattening accuracy.

[0047] Reference Figure 4 As shown, the guide 4 has two parallel clamping blocks 6, the flattening mold 7 is located between the two clamping blocks 6, and the two ends of the guide rod 5 are respectively connected to the two clamping blocks 6, which can prevent misalignment when the guide block and the flattening mold 7 are relatively displaced, thereby improving the flattening accuracy.

[0048] Reference Figure 5 and Figure 6As shown, the flattening mold 7 has an extension 9 on its inner side. The extension 9 and the inner side of the flattening mold 7 together define a receiving groove for placing the stator assembly circle 24. The extension 9 is provided with a limiting groove, and the inner side of the flattening mold 7 is provided with a limiting rib. Correspondingly, the outer wall of the stator assembly circle 24 is provided with a groove for engaging with the limiting rib, and the inner wall of the stator assembly circle 24 is provided with a protruding rib for engaging with the limiting groove. The receiving groove allows the blocks of the stator assembly circle 24 to move inward and outward. After multiple adjustments, the flatness of the stator assembly circle 24 can be effectively improved.

[0049] In some embodiments, the movable connection between the guide 4 and the flattening mold 7 can also be as follows: the guide 4 is rotatably connected to one end of the connecting rod, and the flattening mold 7 is rotatably connected to the other end of the connecting rod. When the guide 4 moves upward, the force applied to the connecting rod causes the connecting rod to have an upward and left (right) tendency to move. The force transmitted from the connecting rod to the flattening mold 7 causes the flattening mold 7 to also have an upward and left (right) tendency to move. Since the flattening mold 7 is restricted from moving up and down by the first limiting component 15, the flattening mold 7 can only move in the left (right) direction.

[0050] 2. End leveling mechanism

[0051] Reference Figures 1 to 3 As shown, the end leveling mechanism includes a second driver (e.g., a cylinder, a motor, etc., a cylinder is used in this embodiment), an elastic element 11 (e.g., a coil spring, a metal elastic sheet, etc., a coil spring is used in this embodiment), a lifting element 12 (block-shaped), and a pressing element 13 (hollow cylindrical shape).

[0052] The flattening mold 7 is provided with a receiving groove 10, and an elastic element 11 is disposed in the receiving groove 10. A slider 14 is also provided in the receiving groove 10. The elastic element 11 is located between the flattening mold 7 and the slider 14. The slider 14 can disperse the force of the elastic element 11 on the first limiting plate 16, so that the elastic element 11 moves more smoothly with the flattening mold 7. The lifting element 12 is connected to the elastic element 11 and extends through the flattening mold 7 into the receiving slot. The second driver is disposed on the base 1, and the pressing element 13 is disposed on the output end of the second driver and can move toward the stator assembly circle 24.

[0053] The lifting member 12 is designed to move with the flattening mold 7, which can reduce the scratches on the end of the stator assembly circle 24 caused by the lifting member 12. The elastic member 11 can buffer the downward pressure applied to the stator assembly circle 24 by the pressing member 13, and prevent the stator assembly circle 24 from being crushed.

[0054] In the initial state, the stator assembly circle 24 is placed in the receiving slot, the lifting member 12 abuts against the lower end of the stator assembly circle 24, and the output end of the second driver is in an upward retracted position. During the transition from the initial state to the final state, the output end of the second driver extends downward, pushing the pressing member 13 to flatten the end of the stator assembly circle 24.

[0055] The above description is only a preferred embodiment of this embodiment and is not intended to limit this embodiment. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this embodiment should be included within the protection scope of this embodiment.

Claims

1. A stator flattening device, characterized in that, include: The sidewall leveling mechanism includes a first driver, a guide circumferentially disposed at the output end of the first driver and capable of moving in the vertical direction, a flattening mold movably connected to the guide and having a tendency to move in the horizontal and vertical directions under the drive of the guide, and a first limiting component for limiting the vertical movement of the flattening mold. The stator assembly circle is circumferentially surrounded by the flattening mold, and the first driver can push the guide to move vertically so that the flattening mold moves horizontally to flatten the iron core of the stator assembly circle.

2. The stator flattening device as described in claim 1, characterized in that, The guide member is provided with a guide rod, and the flattening mold is provided with a guide groove for cooperating with the guide rod. The guide groove is a straight inclined groove, and the guide rod is movably disposed in the guide groove. When the guide rod moves in the guide groove, the flattening mold moves horizontally.

3. The stator flattening device as described in claim 1, characterized in that, Also includes: The end leveling mechanism includes a second driver, a lifting member for pressing against the lower end of the stator assembly circle, and a pressing member located at the output end of the second driver and capable of moving toward the stator assembly circle.

4. The stator flattening device as described in claim 3, characterized in that, The first limiting component includes a fixed first limiting plate and a second limiting plate parallel to the first limiting plate. The first limiting plate is provided with a limiting groove for mounting the flattening mold. The flattening mold is clamped between the first limiting plate and the second limiting plate and can move along the limiting groove toward the center direction of the circumferential arrangement of the flattening mold.

5. The stator flattening device as described in claim 4, characterized in that, The first limiting component further includes a limiting ring for limiting the distance the flattening mold moves in the opposite direction toward the center direction, the limiting ring being fitted onto the outer wall of the flattening mold.

6. The stator flattening device as described in claim 4, characterized in that, The flattening mold has an extension on its inner side. The extension and the inner wall of the flattening mold together define a receiving groove for clamping the stator assembly circular sidewall, so as to drive the stator assembly circular sidewall to move toward the center direction of the circumferential arrangement of the flattening mold or the opposite direction of the center direction.

7. The stator flattening device as described in claim 6, characterized in that, The flattening mold is also provided with a receiving groove for accommodating the lifting member, which can move with the flattening mold.

8. The stator flattening device as described in claim 7, characterized in that, The receiving groove is provided with an elastic element for connecting the lifting member. The lifting member can pass through the flattening mold under the action of the elastic element to hold the lower end of the stator assembly circle.

9. The stator flattening device as described in claim 1, characterized in that, The inner side of the flattening mold is provided with limiting ribs and / or limiting slots for restricting the rotation of the stator assembly circle around the vertical axis. The stator assembly circle is provided with corresponding protrusions and / or grooves. The protrusions are used to cooperate with the limiting slots, and the grooves are used to cooperate with the limiting ribs.

10. The stator flattening device as described in claim 1, characterized in that, The sidewall leveling mechanism further includes a second limiting component for limiting the travel of the output end of the first driver. The second limiting component includes a limiting block disposed at the output end of the first driver and capable of limiting the upward displacement of the output end of the first driver, and a buffer block disposed on a fixed base for mounting the first driver. The buffer block can limit the downward displacement of the output end of the first driver and buffer the impact force of the limiting block.

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