Laminating and positioning device for stator core of hub motor

Abstract

The invention discloses a wheel hub motor stator core laminating and positioning device, and belongs to the technical field of motor production and processing, the wheel hub motor stator core laminating and positioning device comprises a base and a stand column fixedly mounted on the base and matched with an inner hole of a stator core, a supporting table is slidably mounted on the stand column in a limiting manner, and a conveying mechanism capable of conveying a silicon steel sheet to the supporting table is mounted on the base; a separation frame is rotatably installed on one side of the support, four right-angle notches are formed in the separation frame so that the separation frame can be in a cross shape, a single silicon steel sheet can be conveyed to the supporting table by rotating the separation frame by 90 degrees, the base is in threaded connection with a threaded sleeve arranged on the stand column in a sleeving mode and rotatably connected with the bottom wall of the supporting table, and a supporting rod is fixedly connected to the separation frame. One end of the supporting rod extends into the base and is connected with the threaded sleeve through the transmission mechanism, the separation frame rotates by 90 degrees, the threaded sleeve can rotate through the transmission mechanism, the supporting table moves downwards by the distance of the thickness of a single silicon steel sheet, it is guaranteed that the falling displacement of each silicon steel sheet is consistent, and the laminating efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor production and processing, and particularly relates to a stacking and positioning device for a hub motor stator core. Background Art

[0002] The hub core is a core component in a hub motor, usually divided into a stator core and a rotor core. The stator core is fixed on the outer shell of the hub motor, while the rotor core is connected to the rotating shaft of the wheel. Their main function is to generate a magnetic field through electromagnetic induction, thereby driving the wheel to rotate.

[0003] The hub core is formed by stamping silicon steel sheets, and a plurality of slot openings for embedding are provided circumferentially thereon; a plurality of stator punchings are stacked and formed with their outer circles aligned and the slot openings for embedding aligned. However, during the stacking process, since the silicon steel sheets are relatively thin, they are easily damaged when falling to the bottom. In the prior art, for example, a Chinese patent with publication number CN118651578B discloses a conveying mechanism and a conveying method for a core processing line, which respectively support the silicon steel sheets through a plurality of separating parts, and drive the plurality of separating parts to move through a conveyor belt to reduce the falling distance of the silicon steel punchings, thereby playing a role in protecting the falling of the silicon steel punchings. However, the above technology requires placing the silicon steel sheets on the separating parts one by one, resulting in low efficiency.

[0004] Therefore, it is necessary to propose a stacking and positioning device for a hub motor stator core to solve the above problems. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a stacking and positioning device for a hub motor stator core, which is used to solve the problem of low stacking efficiency in the prior art under the premise of reducing the falling distance of silicon steel sheets during stacking.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: The present invention provides a stacking and positioning device for a hub motor stator core. The stator core includes a plurality of stacked silicon steel sheets. The stator core is provided with an inner hole. The positioning device includes a base and a column fixedly installed on the base. The column is matched with the inner hole of the stator core. A support table for supporting the silicon steel sheets is installed on the column in a limited sliding manner. A conveying mechanism for conveying the silicon steel sheets to the support table is installed on the base. The conveying mechanism includes a bracket and a conveyor belt installed on the bracket. A blanking port corresponding to the support table is provided on the bracket. The conveyor belt can convey the silicon steel sheets to the blanking port to fall on the support table. A partition frame is rotatably installed on one side of the bracket. The partition frame is provided with four right-angle notches to make the partition frame in a cross shape. The partition frame extends to the conveyor belt and can block the conveyor belt. The silicon steel sheets can be fixed in the right-angle notches of the partition frame. Rotating the partition frame by 90° can convey a single silicon steel sheet to the support table. A threaded sleeve sleeved on the column is threadedly connected to the base. The first end of the threaded sleeve is rotatably connected to the bottom wall of the support table. The second end of the threaded sleeve extends into the base. A support rod is fixedly connected to the partition frame. One end of the support rod extends into the base and is connected to the threaded sleeve through a transmission mechanism. Rotating the partition frame by 90° can rotate the threaded sleeve through the transmission mechanism, so that the support table moves down by a distance equal to the thickness of a single silicon steel sheet.

[0007] Further, the transmission mechanism includes a tooth column fixedly installed at the end of the support rod away from the partition frame, and a gear fixedly installed at the second end of the threaded sleeve. The tooth column is meshed with the gear, and the height of the tooth column is greater than the height of the gear, and the diameter of the tooth column is smaller than the diameter of the gear.

[0008] Further, a plurality of embedding groove openings are circumferentially arranged on the outer circumference of the silicon steel sheet. A partition column extending into the embedding groove openings is fixedly installed on the base. The partition column penetrates through the support table. At least one set of alignment mechanisms is installed on the support table. The alignment mechanism includes two conveyor belts respectively installed on the oppositely arranged partition columns. The length of the conveyor belt is smaller than the tangential length of the partition column. The conveying directions of the two conveyor belts are transmitted along the tangential direction of the same circumferential direction. The top wall of the conveyor belt is in the same plane as the top wall of the column. A baffle is provided on the bracket on the side of the blanking port away from the conveyor belt.

[0009] Further, a limiting plate is fixedly installed on the bracket. The partition frame is arranged between the limiting plate and the blanking port. A gap that can only allow a single silicon steel sheet to pass through is provided between the limiting plate and the conveyor belt.

[0010] Further, a lifting plate is fixedly installed on the bracket. The lifting plate is located on the side of the blanking port close to the conveyor belt. An inclined surface is provided on the lifting plate. The bottom end of the inclined surface is in the same plane as the conveyor belt. A preset height is provided between the top end of the inclined surface and the conveyor belt.

[0011] Further, the top wall of the partition column is inclined on both opposite sides close to the inner wall of the slot for embedding the wire, and the conveyor belt is fixedly installed on the horizontal section of the top wall of the partition column.

[0012] The beneficial effects of the present invention are as follows: The present invention realizes the intermittent transportation of single silicon steel sheets by rotating the partition frame, and for each transported silicon steel sheet, the support table can be moved downward by a distance equal to the thickness of a single silicon steel sheet through the transmission mechanism, ensuring that the displacement of each silicon steel sheet during falling is consistent, reducing the falling distance of the silicon steel sheets, playing a protective role for the silicon steel sheets, and improving the lamination efficiency.

[0013] Other advantages, objectives and features of the present invention will be described in the following specification, and to some extent, they are obvious to those skilled in the art, or those skilled in the art can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to make the objectives, technical solutions and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the installation of the lifting plate of an embodiment of the present invention; Figure 3 It is a schematic diagram of the lamination installation of silicon steel sheets of an embodiment of the present invention.

[0015] The reference signs in the drawings are as follows: silicon steel sheet 1, slot for embedding the wire 101, support table 2, conveying mechanism 3, bracket 301, conveyor belt 302, partition frame 303, blanking port 304, baffle 305, limiting plate 306, gap 307, lifting plate 308, inclined surface 309, base 4, column 5, threaded sleeve 6, support rod 7, tooth column 8, gear 9, partition column 10, conveyor belt 11. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] As Figures 1 to 3As shown in the figure, the present invention provides a stacking and positioning device for a hub motor stator core. The stator core includes a plurality of stacked silicon steel sheets 1. The stator core is provided with an inner hole. The positioning device includes: a base 4, on which a column 5 is fixedly installed. The column 5 is matched with the inner hole of the stator core. A support table 2 for supporting the silicon steel sheets 1 is installed on the column 5 in a limited sliding manner. The support table 2 is provided with a central hole matched with the column 5. The support table 2 is key-connected to the column 5 so that the support table 2 can slide axially along the column 5 in a limited manner. A conveying mechanism 3 for conveying the silicon steel sheets to the support table 2 is installed on the base 4. The conveying mechanism 3 includes a bracket 301 and a conveyor belt 302 installed on the bracket 301. A blanking port 304 corresponding to the support table 2 is provided on the bracket 301. The conveyor belt 302 can convey the silicon steel sheets 1 to the blanking port 304 to fall on the support table 2. A partition frame 303 is rotatably installed on one side of the bracket 301. The partition frame 303 is provided with four right-angled notches so that the partition frame 303 is in a cross shape. The partition frame 303 extends to the conveyor belt 302 and can block the conveyor belt 302. The silicon steel sheets 1 can be fixed in the right-angled notches of the partition frame 303. Rotating the partition frame 303 by 90° can convey a single silicon steel sheet 1 to the support table 2. A threaded sleeve 6 is threadedly connected to the base 4. The threaded sleeve 6 is sleeved on the column 5. The threaded sleeve 6 is provided with an external thread matched with the internal thread on the base 4. The first end of the threaded sleeve 6 is rotatably connected to the support table 2. The second end of the threaded sleeve 6 extends into the base 4. A support rod 7 is fixedly connected to the partition frame 303. One end of the support rod 7 extends into the base 4 and is connected to the threaded sleeve 6 through a transmission mechanism. Rotating the partition frame 303 by 90° can rotate the threaded sleeve 6 through the transmission mechanism so that the support table 2 moves down by a distance equal to the thickness of a single silicon steel sheet 1.

[0017] In this solution, during the lamination process of multiple silicon steel sheets 1, the multiple silicon steel sheets 1 are placed on the conveying mechanism 3 and transported to the support table 2 by the conveyor belt 302. When the conveyor belt 302 transports the silicon steel sheet 1 to the side of the partition frame 303, one of the struts of the partition frame 303 can block the movement of the silicon steel sheet 1. At this time, by rotating the partition frame 303, the silicon steel sheet 1 is moved between the two struts of the partition frame 303, that is, into the right-angle notch. At this time, the support table 2 is located on the top of the column 5, and the top wall of the support table 2, the top wall of the column 5, and the top wall of the conveyor belt 3 are on the same plane. Then, continue to rotate the partition frame 303 so that the silicon steel sheets 1 can only pass through one by one. The single silicon steel sheet 1 is continuously transported above the support table 2, so that the silicon steel sheet 1 falls on the support table 2. When the partition frame 303 is continuously rotated, the support rod 7 is driven to rotate, and thus the threaded sleeve 6 is driven to rotate through the transmission mechanism, so that the threaded sleeve 6 rotates and moves downward to drive the support table 2 to move downward by a distance equal to the thickness of a single silicon steel sheet 1, so that the next silicon steel sheet 1 falls on the previous silicon steel sheet 1, and the falling displacement is the thickness of a single silicon steel sheet 1; wherein, the transmission mechanism includes a tooth column 8 fixedly installed at the end of the support rod 7 away from the partition frame 303, and a gear 9 fixedly installed at the second end of the threaded sleeve 6. The tooth column 8 meshes with the gear 9, and the height of the tooth column 8 is greater than the height of the gear 9, and the diameter of the tooth column 8 is smaller than the diameter of the gear 9. The gear 9 and the tooth column 8 are both rotatably installed in the base 4; so that when the threaded sleeve 6 rotates, the gear 9 can rotate and can move axially along the tooth column 8, and the deceleration function is realized, so that when the partition frame 303 rotates 90°, the support table 2 can be driven to move downward by a distance equal to the thickness of a single silicon steel sheet 1.

[0018] This solution realizes the intermittent transportation of a single silicon steel sheet 1 by rotating the partition frame 303. And for each transported silicon steel sheet 1, the support table 2 can be moved downward by a distance equal to the thickness of a single silicon steel sheet 1 through the transmission mechanism, ensuring that the falling displacement of each silicon steel sheet 1 is consistent, reducing the falling distance of the silicon steel sheet, playing a protective role for the silicon steel sheet, and improving the lamination efficiency.

[0019] In an embodiment of the present invention, a plurality of embedding groove openings 101 are circumferentially arranged on the outer circle of the silicon steel sheet 1. A partition column 10 extending into the embedding groove openings 101 is fixedly installed on the base 4. The partition column 10 penetrates through the support table 2. At least one set of alignment mechanisms is installed on the support table 2. The alignment mechanism includes two conveyor belts 11 respectively installed on the oppositely arranged partition columns 10. The length of the conveyor belt 11 is less than the tangential length of the partition column 10. The conveying directions of the two conveyor belts 11 are transmitted along the tangential direction of the same circumferential direction. The top wall of the conveyor belt 11 is on the same plane as the top wall of the column 5. A baffle 305 is provided on the bracket 301 on the side of the feeding port 304 away from the conveyor belt 11.

[0020] In this solution, the top wall of the conveyor belt 11 is rectangular to increase the contact area with the silicon steel sheet 1 and ensure the orientation effect on the silicon steel sheet 1. After the conveyor belt 302 transports the silicon steel sheet 1 above the support table 2 and during the subsequent transportation process, the conveyor belt 11 is started, and the two oppositely arranged conveyor belts 11 drive the silicon steel sheet 1 to rotate and adjust its position. Among them, a plurality of iron core teeth are circumferentially arranged on the silicon steel sheet 1, and a slot opening 101 is formed between two adjacent iron core teeth. The structure of the silicon steel sheet 1 belongs to the conventional technical means in this field and will not be elaborated here. When the silicon steel sheet 1 is transported to the discharge port 304, if the partition column 10 supports under the iron core teeth, the two oppositely arranged conveyor belts 11 on the partition column 10 drive the silicon steel sheet 1 to rotate and adjust its position. When the slot opening 101 corresponds to the partition column 10, the silicon steel sheet 1 can fall on the support table 2; and by setting the baffle 305, when the silicon steel sheet 1 is transported to the discharge port 304, the baffle 305 blocks the silicon steel sheet 1 to facilitate the rotation of the silicon steel sheet 1.

[0021] By setting the orientation mechanism in this solution, the silicon steel sheet 1 provided with the slot opening 101 can be automatically oriented after being transported to the discharge port 304, so that the silicon steel sheets 1 can be stacked and aligned.

[0022] In an embodiment of the present invention, a limiting plate 306 is fixedly installed on the bracket 301. The partition frame 303 is arranged between the limiting plate 306 and the discharge port 304. A gap 307 that allows only a single silicon steel sheet 1 to pass through is provided between the limiting plate 306 and the conveyor belt 302.

[0023] In this solution, the height of the gap 307 is greater than the thickness of a single silicon steel sheet 1 and less than the stacked thickness of two silicon steel sheets 1. By setting the limiting plate 306, it is ensured that a single silicon steel sheet 1 passes through in sequence, avoiding the overlap of the silicon steel sheets 1 during the transportation on the conveyor belt 302.

[0024] In an embodiment of the present invention, a lifting plate 308 is fixedly installed on the bracket 301. The lifting plate 308 is located on the side of the discharge port 304 close to the conveyor belt 302. An inclined surface 309 is provided on the lifting plate 308. The bottom end of the inclined surface 309 is on the same plane as the conveyor belt 302, and a preset height is provided between the top end of the inclined surface 309 and the conveyor belt 302.

[0025] In this solution, since the silicon steel sheet 1 is easily deformed, when the silicon steel sheet 1 is transported along the conveyor belt 302 to the lifting plate 308, due to the setting of the inclined surface 309, the lifting plate 308 is lifted by a preset height during the subsequent transportation process to prevent the silicon steel sheet 1 from being damaged by hitting against the column 5 or the partition column 10 when it first detaches from the position of the conveyor belt 302.

[0026] In an embodiment of the present invention, the top wall of the partition column 10 is inclined on opposite sides close to the inner wall of the wire embedding groove opening 101, and the conveyor belt 11 is fixedly installed on the horizontal section of the top wall of the partition column 10, so that the silicon steel sheet 1 can slide down along the partition column 10 more easily.

[0027] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A positioning device for stacking a stator core of a wheel hub motor, the stator core comprising a plurality of stacked silicon steel sheets, the stator core being provided with an inner hole, characterized in that: The positioning device includes a base and a column fixedly installed on the base. The column is fitted with the inner hole of the stator core. A support table for supporting silicon steel sheets is installed on the column in a limited sliding manner. A conveying mechanism for conveying the silicon steel sheets to the support table is installed on the base. The conveying mechanism includes a bracket and a conveyor belt installed on the bracket. A blanking port corresponding to the support table is provided on the bracket. The conveyor belt can convey the silicon steel sheets to the blanking port to fall on the support table. A partition frame is rotatably installed on one side of the bracket. The partition frame is provided with four right-angle notches to make the partition frame in a cross shape. The partition frame extends to the conveyor belt and can block the conveyor belt. The silicon steel sheets can be fixed in the right-angle notches of the partition frame. Rotating the partition frame by 90° can convey a single silicon steel sheet to the support table. A threaded sleeve sleeved on the column is threadedly connected to the base. The first end of the threaded sleeve is rotatably connected to the bottom wall of the support table. The second end of the threaded sleeve extends into the base. A support rod is fixedly connected to the partition frame. One end of the support rod extends into the base and is connected to the threaded sleeve through a transmission mechanism. Rotating the partition frame by 90° can rotate the threaded sleeve through the transmission mechanism, so that the support table moves down by the thickness of a single silicon steel sheet.

2. The hub motor stator core lamination positioning device according to claim 1, characterized in that: The transmission mechanism includes a tooth column fixedly installed at the end of the support rod away from the partition frame, and a gear fixedly installed at the second end of the threaded sleeve. The tooth column is meshed with the gear, and the height of the tooth column is greater than the height of the gear, and the diameter of the tooth column is smaller than the diameter of the gear.

3. The hub motor stator core lamination positioning device according to claim 2, characterized in that: A plurality of embedding groove openings are circumferentially arranged on the outer circumference of the silicon steel sheet. A partition column extending into the embedding groove openings is fixedly installed on the base. The partition column penetrates through the support table. At least one set of alignment mechanisms is installed on the support table. The alignment mechanism includes two conveyor belts respectively installed on the oppositely arranged partition columns. The length of the conveyor belt is smaller than the tangential length of the partition column. The conveying directions of the two conveyor belts are transmitted along the tangential direction of the same circumferential direction. The top wall of the conveyor belt is in the same plane as the top wall of the column. A baffle is provided on the bracket on the side of the blanking port away from the conveyor belt.

4. The hub motor stator core lamination positioning device according to claim 3, wherein: A limiting plate is fixedly installed on the bracket. The partition frame is arranged between the limiting plate and the blanking port. A gap allowing only a single silicon steel sheet to pass through is provided between the limiting plate and the conveyor belt.

5. The hub motor stator core lamination positioning device according to claim 4, characterized in that: A lifting plate is fixedly installed on the bracket. The lifting plate is located on the side of the blanking port close to the conveyor belt. An inclined surface is provided on the lifting plate. The bottom end of the inclined surface is in the same plane as the conveyor belt. A preset height is provided between the top end of the inclined surface and the conveyor belt.

6. The hub motor stator core stacking and positioning device according to claim 5, characterized in that: The top wall of the partition column is inclined on both opposite sides close to the inner wall of the embedding groove opening. The conveyor belt is fixedly installed on the horizontal section of the top wall of the partition column.

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