A casting device for a motor rotor core

Abstract

A kind of casting device of motor rotor core, the manufacturing technical field of motor rotor core, including the core mold for casting, core mold is fixed on casting support, and crucible assembly is provided on casting support with the cooperation of core mold;Casting support also has the lifting support group of supporting crucible assembly, and also has the transfer support group for transferring and accurately pouring crucible assembly;Wherein transfer support group includes a pair of guide rail set on casting support, sliding block is clamped on guide rail, vertical support rod is set on sliding block, cross bar is set between the two support rods, a pair of pouring hooks are set on cross bar, position sensing sensor is set on guide rail, realize that crucible assembly is accurately poured into core mold under the action of hook. Provide a kind of casting device of motor rotor core, by optimizing transfer and pouring structure, realize the accurate positioning and controllable pouring of crucible assembly, to improve casting quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of manufacturing technology of motor rotor cores, specifically to a casting device for motor rotor cores, and more particularly to a casting device capable of accurately pouring and transferring molten material. Background Technology

[0002] Motor rotor cores are typically manufactured using a casting process, in which molten material, such as aluminum alloy, is poured into a mold to form the core. Traditional casting equipment often suffers from inaccurate positioning and uncontrolled pouring when pouring molten material, leading to material spillage and uneven casting, which affects the forming quality of the core and the product qualification rate.

[0003] In the prior art, for example, prior art document CN120079840A discloses a brushless motor rotor core casting device, which uses a piston plate to isolate air, reducing oxidation and bubble formation of the molten material, and utilizes a cooling system to accelerate molding. However, this device mainly focuses on the sealing and cooling process of the molten material, and does not address the transfer, positioning, and tilting control of the crucible assembly, making it difficult to achieve high precision and automation in the casting process. Therefore, a casting device capable of accurately transferring and tilting the crucible assembly is needed to solve the above problems and improve casting accuracy and production efficiency. Utility Model Content

[0004] The purpose of this invention is to address existing problems by providing a casting device for motor rotor cores. By optimizing the transfer and tilting structure, it achieves precise positioning and controllable tilting of the crucible assembly, thereby improving casting quality and efficiency.

[0005] To achieve the above technical objectives, the following technical solution is provided: A casting device for an electric motor rotor core includes a core mold for casting, the core mold being fixed on a casting support, and a crucible assembly that cooperates with the core mold being mounted on the casting support. The casting support also includes a lifting support assembly for supporting the crucible assembly, and a transfer support assembly for transferring and precisely tilting the crucible assembly. The transfer support assembly includes a pair of guide rails mounted on the casting support, a slider being mounted on the guide rails, a support rod being vertically mounted on the slider, a crossbar being mounted between the two support rods, a pair of tilting hooks being mounted on the crossbar, and a position sensing sensor being mounted on the guide rails to enable the crucible assembly to be precisely tilted into the core mold under the action of the hooks.

[0006] Preferably, a support plate covering the bottom surface of the lifting support assembly is provided at the bottom of the lifting support assembly; an iron core mold is fixed on the support plate.

[0007] Preferably, the lifting support assembly includes a pair of telescopic cylinders fixed to the bottom of the casting support, the telescopic cylinders passing through the support plate; it also includes a pair of vertical guide rails fixed to both sides of the casting support, the bottom end of the vertical guide rails contacting the support plate, and the top end contacting the guide rails; a first slider is engaged on the vertical guide rails, and a base for supporting the crucible assembly is fixed on the first slider, the base being provided with a bent portion that is fixed to the end of the telescopic cylinder.

[0008] Preferably, the crucible assembly includes a crucible component, a crucible sleeve is provided outside the crucible component, and an induction coil is provided outside the crucible sleeve. The crucible component, the crucible sleeve, and the induction coil are housed inside a sensor. Rotary shaft support rods are respectively provided on both sides of the sensor, and the rotary shaft support rods are connected to the base.

[0009] Preferably, the iron core mold includes a protective shell, the protective shell includes a shell base plate fixed to the support plate, a limiting shell is provided on the shell base plate, a partition area is provided above the limiting shell by a partition plate, a through pipe is provided in each partition area, and a collection plate for collecting overflowing materials is provided inside the limiting shell outside the through pipe.

[0010] Preferably, the iron core mold includes an internal main core, which includes a first base plate, a bottom mold disposed on the first base plate, and a plurality of first pins disposed on the first base plate to fix the bottom mold; it also includes a top plate, a top mold disposed on the top plate, and a plurality of second pins disposed on the top plate to fix the top mold; a third pin is disposed between the bottom mold and the top mold to fix the bottom mold and the top mold; and it also includes a pair of through holes disposed on the top plate, one of which is connected to a through pipe to allow material casting.

[0011] Preferably, the third pin passes through the top plate, fixing the bottom membrane, top membrane, and top plate together.

[0012] Preferably, the top plate has a groove on its side that engages with a protrusion inside the limiting shell.

[0013] Compared with the prior art, the present invention has the following advantages: By setting up a transfer support assembly and utilizing the synergistic effect of guide rails, sliders, hooks, and position sensors, the crucible components can be automatically transferred and precisely tilted, effectively preventing material spillage and casting deviations, and improving product consistency and yield.

[0014] The lifting support assembly adjusts the height of the crucible assembly through telescopic cylinders and vertical guide rails, facilitating docking with the iron core mold, adapting to different casting requirements, and enhancing the flexibility of the device.

[0015] The iron core mold is designed with a collection plate and a protective shell, which can effectively collect the materials that overflow during the casting process, keep the working environment clean, and reduce waste.

[0016] With its compact structure and simple operation, it achieves automation and high-precision control of the casting process, significantly improving production efficiency and product quality. Attached Figure Description

[0017] 1-Iron core mold, 2-Casting support, 3-Crucible assembly, 4-Guide rail, 5-Support plate, 6-Telescopic cylinder, 7-Protective shell, 11-First base plate, 12-Bottom film, 13-Top plate, 14-Top film, 15-Through hole, 21-Lifting support assembly, 22-Transfer support assembly, 31-Crucible component, 32-Crucible sleeve, 33-Induction coil, 34-Sensor, 35-Rotation shaft support rod, 41-Slider, 42-Support rod, 43-Horizontal bar, 44-Hook, 45-Position sensing sensor, 61-Vertical guide rail, 62-First slider, 63-Base, 71-Shell base plate, 72-Limiting shell, 73-Through pipe, 74-Collection plate Figure 1 This is a schematic diagram of the overall structure of this embodiment; Figure 2 This is a partially enlarged schematic diagram of the transfer stent assembly; Figure 3 This is an enlarged schematic diagram of the crucible assembly; Figure 4 This is a partially enlarged schematic diagram of the lifting support assembly; Figure 5 This is a schematic diagram of the overall protective casing; Figure 6 This is a schematic diagram of the internal core structure; Figure 7 This is a top view of the internal core's top plate; Figure 8 yes Figure 7 Sectional view at point BB; Detailed Implementation

[0018] like Figure 1 The embodiment shown in this application discloses a motor rotor core casting device comprising a core mold 1, a casting support 2, a crucible assembly 3, a lifting support assembly 21, and a transfer support assembly 22. The core mold 1 is fixed to the casting support 2 by a support plate 5. The crucible assembly 3 is supported by the lifting support assembly 21 and can be moved and tilted via the transfer support assembly 22. The lifting support assembly 21 has a support plate 5 covering its bottom surface.

[0019] The casting support 2 has a lifting support assembly 21 for supporting the crucible assembly 3, and a transfer support assembly 22 for transferring and precisely tilting the crucible assembly 3; wherein, for example... Figure 2The transfer support assembly 22 shown includes a pair of guide rails 4 mounted on the casting support 2. A slider 41 is mounted on the guide rails 4. A support rod 42 is vertically mounted on the slider 41. A crossbar 43 is mounted between the two support rods 42. A pair of tilting hooks 44 are mounted on the crossbar 43. A position sensing sensor 45 is mounted on the guide rails 4 to enable the crucible assembly 3 to be accurately tilted into the iron core mold 1 under the action of the hooks 44.

[0020] The specific transfer support assembly 22 includes a pair of guide rails 4, with a slider 41 mounted on each guide rail 4. A support rod 42 is vertically fixed on each slider 41, and a crossbar 43 connects the two support rods 42. A pair of hooks 44 are mounted on the crossbar 43. A position sensor 45 is also provided on the guide rails 4. When tilting is required, the hooks 44 hook onto the rotation axis support rod 35 of the crucible assembly 3, and the slider 41 moves along the guide rails 4. The position is detected in real time by the position sensor 45 to ensure that the crucible assembly 3 is tilted accurately and the molten material is poured into the iron core mold 1.

[0021] like Figure 4 The lifting support assembly 21 shown includes a pair of telescopic cylinders 6 fixed to the bottom of the casting support 2, the telescopic cylinders 6 passing through the support plate 5; it also includes a pair of vertical guide rails 61 fixed to both sides of the casting support 2, the bottom end of the vertical guide rails 61 contacting the support plate 5, and the top end contacting the guide rail 4; a slider 62 is engaged on the vertical guide rail 61, and a base 63 for supporting the crucible assembly 3 is fixed on the slider 62, and the base 63 is provided with a bent part that is fixed to the end of the telescopic cylinder 6.

[0022] The specific lifting support assembly 21 includes a pair of telescopic cylinders 6 and a pair of vertical guide rails 61. The telescopic cylinders 6 are fixed to the bottom of the casting support 2 and pass through the support plate 5; the vertical guide rails 61 are fixed to both sides of the casting support 2, with their bottom ends contacting the support plate 5 and their top ends connected to the guide rails 4. A first slider 62 is engaged on the vertical guide rail 61, and a base 63 is fixed on the first slider 62. The base 63 is fixed to the end of the telescopic cylinder 6 through a bending part. By controlling the extension and retraction of the telescopic cylinders 6, the base 63 can be driven to rise and fall along the vertical guide rails 61, thereby adjusting the height of the crucible assembly 3.

[0023] like Figure 3 The crucible assembly 3 shown includes a crucible component 31, a crucible sleeve 32 is provided on the outer side of the crucible component 31, and an induction coil 33 is provided on the outer side of the crucible sleeve 32. The crucible component 31, the crucible sleeve 32 and the induction coil 33 are arranged in a sensor 34. Rotation shaft support rods 35 are respectively provided on both sides of the sensor 34, and the rotation shaft support rods 35 are connected to the base 63.

[0024] The specific crucible assembly 3 includes a crucible piece 31, a crucible sleeve 32, an induction coil 33, and a sensor 34. The crucible piece 31 is placed inside the crucible sleeve 32, the induction coil 33 is wrapped around the outside of the crucible sleeve 32, and the whole assembly is placed in the sensor 34. Rotation shaft support rods 35 are provided on both sides of the sensor 34, which are connected to the base 63, so that the crucible assembly 3 can rotate around the axis.

[0025] The iron core mold 1 includes a protective outer shell 7, such as Figure 5 The protective housing 7 shown includes a housing base plate 71 fixed to the support plate 5. A limiting shell 72 is provided on the housing base plate 71. A partition area is provided above the limiting shell 72 by a partition plate. A through pipe 73 is provided in each partition area. A collection plate 74 for collecting spilled materials is provided inside the limiting shell 72 outside the through pipe 73.

[0026] Iron core mold 1 includes an internal main core, such as Figure 6 , Figure 7 and Figure 8 The internal core shown includes a first base plate 11, a bottom film 12 disposed on the first base plate 11, and a plurality of first pins on the first base plate 11 for fixing to the bottom film 12; it also includes a top plate 13, a top film 14 disposed on the top plate 13, and a plurality of second pins on the top plate 13 for fixing to the top film 14; a third pin is disposed between the bottom film 12 and the top film 14 for fixing between them; in this embodiment, the third pin passes through the top plate 13, fixing the bottom film 12, the top film 14, and the top plate 13. It also includes a pair of through holes 15 disposed on the top plate 13, one of which is connected to a through pipe 73 for material casting. Furthermore, the side of the top plate 13 is provided with a groove that engages with a protrusion disposed within the limiting shell 72.

[0027] The specific iron core mold 1 includes a protective outer shell 7 and an internal main core. The protective outer shell 7 consists of an outer shell base plate 71 and a limiting shell 72. The outer shell base plate 71 is fixed to the support plate 5. The limiting shell 72 has multiple partitioned areas formed by partition plates. Each area is provided with a through pipe 73 and a collection plate 74 on the outside. The internal main core includes a first base plate 11, a bottom mold 12, a top plate 13, and a top mold 14, which are fixed by a first pin, a second pin, and a third pin. The top plate 13 has a through hole 15, which connects to the through pipe 73 to guide molten material into the mold cavity.

[0028] The specific workflow is as follows: Molten material is placed in crucible assembly 3 and heated to a molten state. The height of crucible assembly 3 is adjusted by lifting support assembly 21 to align it with the through pipe 73 of iron core mold 1; the transfer support assembly 22 is activated, hook 44 hooks the rotating shaft support rod 35, and moves along the guide rail 4, precisely positioned under the control of position sensor 45. The crucible assembly 3 is tilted, and molten material is injected into iron core mold 1 through through pipe 73; after casting, excess material is collected by collection plate 74, and the molded iron core is obtained after demolding.

[0029] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent 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, and therefore should not be construed as a limitation on this patent application.

[0030] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0032] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A casting apparatus for an electric motor rotor core, comprising a core mold (1) for casting, characterized in that, The iron core mold (1) is fixed on the casting support (2), and the casting support (2) is provided with a crucible assembly (3) that cooperates with the iron core mold (1). The casting support (2) also has a lifting support group (21) for supporting the crucible assembly (3), and a transfer support group (22) for transferring and precisely tilting the crucible assembly (3); wherein the transfer support group (22) includes a pair of guide rails (4) set on the casting support (2), a slider (41) is clamped on the guide rail (4), a support rod (42) is vertically set on the slider (41), a crossbar (43) is set between the two support rods (42), a pair of tilting hooks (44) are set on the crossbar (43), and a position sensing sensor (45) is set on the guide rail (4) to realize that the crucible assembly (3) is precisely tilted into the iron core mold (1) under the action of the hooks (44).

2. The casting apparatus for the motor rotor core according to claim 1, characterized in that, The lower part of the lifting support group (21) is provided with a support plate (5) covering the bottom surface of the lifting support group (21); the iron core mold (1) is fixed on the support plate (5).

3. The casting apparatus for the motor rotor core according to claim 2, characterized in that, The lifting support assembly (21) includes a pair of telescopic cylinders (6) fixed at the bottom of the casting support (2), and the telescopic cylinders (6) penetrate the support plate (5). It also includes a pair of vertical guide rails (61) fixed on both sides of the casting bracket (2), the bottom end of the vertical guide rails (61) is in contact with the support plate (5), and the top end is in contact with the guide rail (4); The vertical guide rail (61) is fitted with a first slider (62), and the first slider (62) is fixed with a base (63) for supporting the crucible assembly (3). The base (63) is provided with a bent part that is fixed to the end of the telescopic cylinder (6).

4. The casting apparatus for the motor rotor core according to claim 3, characterized in that, The crucible assembly (3) includes a crucible component (31), a crucible sleeve (32) is provided on the outer side of the crucible component (31), and an induction coil (33) is provided on the outer side of the crucible sleeve (32). The crucible component (31), the crucible sleeve (32) and the induction coil (33) are arranged inside the sensor (34). Rotary shaft support rods (35) are respectively provided on both sides of the sensor (34), and the rotary shaft support rods (35) are connected to the base (63).

5. The casting apparatus for the motor rotor core according to claim 2 or 4, characterized in that, The iron core mold (1) includes a protective shell (7), the protective shell (7) includes a shell base plate (71) fixed to the support plate (5), a limiting shell (72) is provided on the shell base plate (71), a partition area is provided above the limiting shell (72) by a partition plate, a through pipe (73) is provided in each partition area, and a collection plate (74) for collecting overflowing materials is provided inside the limiting shell (72) outside the through pipe (73).

6. The casting apparatus for the motor rotor core according to claim 5, characterized in that, The iron core mold (1) includes an internal main core, the internal main core includes a first base plate (11) and a bottom film (12) disposed on the first base plate (11). A plurality of first pins are disposed on the first base plate (11) to fix it to the bottom film (12). It also includes a top plate (13) and a top membrane (14) disposed on the top plate (13), wherein a plurality of second pins are disposed on the top plate (13) to fix it to the top membrane (14); A third pin is provided between the bottom membrane (12) and the top membrane (14) to fix the bottom membrane (12) and the top membrane (14); It also includes a pair of through holes (15) provided on the top plate (13), one of which is connected to the through pipe (73) to realize material casting.

7. The casting apparatus for the motor rotor core according to claim 6, characterized in that, The third pin passes through the top plate (13) and fixes the bottom membrane (12), the top membrane (14) and the top plate (13).

8. The casting apparatus for the motor rotor core according to claim 7, characterized in that, The top plate (13) has a groove on its side, which engages with the protrusion inside the limiting shell (72).

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