Motor shell forming die

Abstract

The utility model discloses a motor casing forming die, and belongs to the technical field of die structures. The motor shell forming mold comprises an upper cover and a base, a side plate formed by splicing a first outer piece, a first inner piece, a second outer piece and a second inner piece is arranged between the upper cover and the base, a pouring cup is arranged in the upper cover, and a positioning groove for positioning the pouring cup is formed in the upper surface of the bottom of the upper cover. A positioning table matched with the positioning groove is arranged at the bottom of the pouring cup, the pouring cup is fixedly spliced with the upper cover through the positioning table and the positioning groove, a pouring gate in the pouring cup is communicated with a runner arranged on the bottom face of the upper cover through a liquid passing hole formed in the bottom of the upper cover, and the runner is communicated with a cavity defined by the upper cover, the side plates and the base. The motor casing forming die can solve the problems that an existing die cannot meet the requirement of automatic assembly and is low in assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold structure technology, and in particular to a motor housing forming mold. Background Technology

[0002] Motor housings are generally formed by casting. The molds used for forming motor housings are typically coated sand molds, which are then formed using a sand-shooting machine. Because motor housings have thin-walled structures, the coated sand molds are assembled from multiple plates. Molten metal is poured into the coated sand mold, filling the internal cavities. After cooling, the mold is removed, resulting in the motor housing. The assembly of the coated sand molds for motor housings is a crucial process that significantly impacts the casting quality of the motor housing.

[0003] Existing patent CN202420687663.4 discloses a coated sand shell for a main component, including an upper shell assembly comprising a top plate, a casting device through hole, a casting device, a cylindrical runner, and a liquid inlet. The lower shell assembly includes a lower shell base and a bottom plate located below the lower shell base. The liquid inlet connects to the casting device, allowing molten metal to be poured into the cylindrical runner and then injected into the mold cavity via the casting device. The side shell assembly is formed by sequentially convex and concave-convex splicing of a first side shell, a second side shell, a third side shell, and a fourth side shell. Adjacent side shells are connected by snap-fit ​​components, resulting in a tighter structure and preventing molten metal from flowing out. Annular grooves on the bottom surface of the top plate and the upper surface of the bottom plate are adapted to annular bosses on the upper and lower surfaces of the first, second, third, and fourth side shells, making the connection between the side shells and the upper and lower shells more convenient and faster. However, the coated sand shell in the aforementioned patent can only be assembled manually, which cannot meet the assembly requirements of automated production. Utility Model Content

[0004] The purpose of this invention is to provide a motor housing forming mold to solve the problem that existing molds cannot meet the requirements of automated assembly and have low assembly efficiency.

[0005] To achieve the above objectives, this utility model provides a motor housing molding mold, including a top cover and a base. A side plate, composed of a first outer piece, a first inner piece, a second outer piece, and a second inner piece, is provided between the top cover and the base. A pouring cup is provided inside the top cover. A positioning groove for positioning the pouring cup is provided on the bottom upper surface of the top cover. A positioning platform adapted to the positioning groove is provided at the bottom of the pouring cup. The pouring cup is fixedly spliced ​​to the top cover through the positioning platform and the positioning groove. The sprue inside the pouring cup is connected to the flow channel provided on the bottom surface of the top cover through a liquid passage hole provided at the bottom of the top cover. The flow channel is connected to the cavity formed by the top cover, the side plate, and the base. A junction box core forming a motor junction box is provided between the base and the second outer piece.

[0006] Preferably, the bottom surface of the top cover is provided with three flow channels evenly distributed, the top surface of the top cover is provided with an exhaust hole communicating with the cavity, and the top lower surface of the top cover is provided with an upper slot for positioning the top of the first outer piece, the first inner piece, the second outer piece, and the second inner piece.

[0007] Preferably, a first positioning block is provided on the top side wall of the top cover to facilitate the gripping of the top cover by a robotic arm.

[0008] Preferably, the bottom upper surface of the base is provided with a lower slot for positioning the bottom of the first outer piece, the first inner piece, the second outer piece, and the second inner piece.

[0009] Preferably, the bottom side wall of the base is provided with a second positioning block to facilitate the robotic arm to grasp the base, and the top of the base is provided with a glue groove to connect with the bottom of the upper cover.

[0010] Preferably, the outer surface of the first outer piece is provided with two first fixing plates to facilitate the gripping of the first outer piece by the robotic arm. The two first fixing plates are connected by a first connecting rib, and the connecting rib, the first fixing plate, and the first outer piece are integral structures. The two sides of the first outer piece are provided with first locking blocks to position the first inner piece and the second inner piece, respectively.

[0011] Preferably, two second fixing plates are provided on the outer side of the first inner sheet to facilitate the gripping of the first inner sheet by the robotic arm. The two second fixing plates are connected by a second connecting rib, and the second connecting rib, the second fixing plate, and the first inner sheet are an integral structure.

[0012] Preferably, the outer surface of the second outer piece is provided with two third fixing plates to facilitate the gripping of the second outer piece by the robotic arm. The two third fixing plates are connected by a third connecting rib, and the third connecting rib, the third fixing plate, and the second outer piece are integral structures. The two sides of the second outer piece are provided with second locking blocks to position the first inner piece and the second inner piece respectively.

[0013] Preferably, the outer surface of the second inner piece is provided with two fourth fixing plates to facilitate the gripping of the second inner piece by the robotic arm. The two fourth fixing plates are connected by a fourth connecting rib, and the fourth connecting rib, the fourth fixing plate, and the second inner piece are an integral structure.

[0014] Preferably, the top sidewall of the pouring cup is provided with a positioning surface that facilitates the robotic arm to grasp the pouring cup. The positioning surface is a plane, and two positioning surfaces are arranged opposite to each other on both sides of the pouring cup.

[0015] The advantages and positive effects of the motor housing molding die of this utility model are as follows: A positioning groove is provided on the bottom upper surface of the top cover, and a positioning platform is provided on the bottom of the pouring cup. The assembly of the pouring cup and the top cover is achieved through the positioning platform and positioning groove, facilitating automated assembly of the top cover and the pouring cup. A first positioning block is provided on the top side wall of the top cover, a second positioning block is provided on the bottom side wall of the base, and a positioning surface is provided on the top side wall of the pouring cup. A first fixing plate is provided on the first outer piece, a second fixing plate is provided on the first inner piece, a third fixing plate is provided on the second outer piece, and a fourth fixing plate is provided on the second inner piece. This facilitates the gripping of the top cover, base, pouring cup, first outer piece, first inner piece, second outer piece, and second inner piece by a robotic arm, enabling automated mechanical gripping and automated mold assembly, thus improving assembly efficiency.

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the motor housing molding die of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the motor housing forming mold of this utility model;

[0019] Figure 3 This is a schematic diagram of the assembly structure of the side plate of the motor housing forming mold of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the upper cover of the motor housing forming mold of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the upper cover of the motor housing forming mold of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the sprue cup of the motor housing molding die of this utility model;

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the sprue cup of the motor housing molding die of this utility model;

[0024] Figure 8 This is a three-dimensional structural diagram of the base of the motor housing forming mold of this utility model;

[0025] Figure 9 This is a three-dimensional structural diagram of the first outer plate of the motor housing forming mold of this utility model;

[0026] Figure 10 This is a three-dimensional structural diagram of the first inner plate of the motor housing forming mold of this utility model;

[0027] Figure 11 This is a three-dimensional structural diagram of the second outer plate of the motor housing forming mold of this utility model;

[0028] Figure 12 This is a three-dimensional structural diagram of the second inner plate of the motor housing forming mold of this utility model.

[0029] Figure Labels

[0030] 1. Top cover; 11. Upper slot; 12. First positioning block; 13. Vent hole; 14. Positioning groove; 15. Liquid passage hole; 16. Flow channel; 2. Base; 21. Lower slot; 22. Second positioning block; 23. Glue groove; 3. Sprue cup; 31. Sprue; 32. Positioning surface; 33. Positioning platform; 4. First outer piece; 41. First fixing plate; 42. First locking block; 5. First inner piece; 51. Second fixing plate; 6. Second outer piece; 61. Third fixing plate; 62. Second locking block; 7. Second inner piece; 71. Fourth fixing plate; 8. Junction box core. Detailed Implementation

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. 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. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this application, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In case of any inconsistency, the meaning as set forth in this specification or derived from the content described herein shall prevail. Furthermore, the terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application. To accurately describe the technical content of this application and to accurately understand this utility model, the following explanations or definitions of the terms used in this specification are provided before describing specific embodiments:

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, a motor housing forming mold includes an upper cover 1 and a base 2. A side plate, composed of a first outer piece 4, a first inner piece 5, a second outer piece 6, and a second inner piece 7, is disposed between the upper cover 1 and the base 2. The first outer piece 4, the first inner piece 5, the second outer piece 6, and the second inner piece 7 are tightly joined together. A cavity for forming the motor housing is formed between the upper cover 1, the base 2, the first outer piece 4, the first inner piece 5, the second outer piece 6, and the second inner piece 7. A junction box core 8, forming a motor junction box, is disposed between the base 2 and the second outer piece 6.

[0035] like Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a pouring cup 3 is disposed inside the upper cover 1. A positioning groove 14 for positioning the pouring cup 3 is provided on the bottom upper surface of the upper cover 1. A positioning platform 33 adapted to the positioning groove 14 is provided on the bottom of the pouring cup 3. The pouring cup 3 is fixedly connected to the upper cover 1 via the positioning platform 33 and the positioning groove 14. The positioning platform 33 and the positioning groove 14 facilitate automated assembly of the pouring cup 3 and the upper cover 1 by a robotic arm, and also improve the stability of the connection between the pouring cup 3 and the upper cover 1. The pouring cup 3 is fixedly connected to the upper cover 1 by adhesive.

[0036] A liquid passage hole 15 is provided at the center of the bottom of the upper cover 1, and the liquid passage hole 15 is coaxially arranged with the pouring cup 3. Three flow channels 16 are evenly arranged on the bottom surface of the upper cover 1, and the three flow channels 16 are radially distributed along the liquid passage hole 15. The pouring cup 3 has a funnel-shaped gating system 31 inside, which is connected to the flow channels 16 through the liquid passage hole 15, and the flow channels 16 are connected to the mold cavity. Molten metal enters the mold cavity through the gating system 31, the liquid passage hole 15 and the flow channels 16, filling the mold cavity with molten metal. After the molten metal cools, it forms the motor housing.

[0037] The top surface of the upper cover 1 is provided with an exhaust hole 13 that communicates with the cavity. Air in the cavity is discharged through the exhaust hole 13, which facilitates the filling of the cavity with liquid and improves the molding effect of the motor housing. The lower surface of the top of the upper cover 1 is provided with an upper slot 11 for positioning the tops of the first outer piece 4, the first inner piece 5, the second outer piece 6, and the second inner piece 7. The upper slot 11 is shaped to improve the positioning effect.

[0038] A first positioning block 12 is integrally provided on the top side wall of the top cover 1 to facilitate the robotic arm to grip the top cover 1. The first positioning block 12 protrudes from the side wall of the top cover 1 and is flat, so as to facilitate the robotic arm to grasp the top cover 1.

[0039] The top side wall of the pouring cup 3 is provided with a positioning surface 32 to facilitate the robotic arm to grasp the pouring cup 3. The positioning surface 32 is a plane, and two positioning surfaces 32 are arranged opposite to each other on both sides of the pouring cup 3.

[0040] like Figure 8 As shown. The bottom upper surface of the base 2 is provided with a lower slot 21 for positioning the bottom of the first outer piece 4, the first inner piece 5, the second outer piece 6, and the second inner piece 7. The lower slot 21 is set according to the shape to improve the positioning effect.

[0041] A second positioning block 22 is integrally provided on the bottom side wall of the base 2 to facilitate the gripping of the base 2 by the robot arm. The second positioning block 22 is arranged opposite to the base 2 and has a gripping plane, which facilitates the gripping of the base 2 by the robot arm and makes it easy to realize the automated assembly of the base 2.

[0042] The top of the base 2 is provided with three glue grooves 23 for connecting to the bottom of the top cover 1. Glue is injected into the glue grooves 23 to achieve a fixed connection between the base 2 and the top cover 1, thereby improving the connection strength between the base 2 and the top cover 1. The side wall of the base 2 is provided with a groove for placing the junction box core 8.

[0043] like Figure 9 As shown, two first fixing plates 41 are provided on the outer surface of the first outer piece 4 to facilitate the gripping of the first outer piece 4 by the robotic arm. The first fixing plates 41 are vertically arranged. The two first fixing plates 41 are connected by a first connecting rib, which is an integral structure with the first fixing plates 41 and the first outer piece 4. The first connecting rib helps to improve the support strength of the first fixing plates 41 and improve the stability of the first outer piece 4 during gripping. First locking blocks 42 are integrally provided on both sides of the first outer piece 4 to position the first inner piece 5 and the second inner piece 7 respectively. The first locking blocks 42 fix the first inner piece 5 and the second inner piece 7 to the inner sides of both ends of the first outer piece 4.

[0044] like Figure 10 As shown, two second fixing plates 51 are provided on the outer surface of the first inner piece 5 to facilitate the gripping of the first inner piece 5 by the robotic arm. The two second fixing plates 51 are connected by a second connecting rib, which is an integral structure with the second fixing plates 51 and the first inner piece 5. The second connecting rib helps to improve the support strength of the second fixing plates 51 and improves the stability of the first inner piece 5 during gripping.

[0045] like Figure 11As shown. Two third fixing plates 61 are provided on the outer surface of the second outer piece 6 to facilitate gripping of the second outer piece 6 by the robotic arm. The two third fixing plates 61 are connected by a third connecting rib, which is an integral structure with the third fixing plates 61 and the second outer piece 6. The third connecting rib helps to improve the support strength of the third fixing plates 61 and enhances the stability of the second outer piece 6 during gripping. Second locking blocks 62 are provided on both sides of the second outer piece 6 to position the first inner piece 5 and the second inner piece 7 respectively, fixing the first inner piece 5 and the second inner piece 7 to the inner sides of both ends of the second outer piece 6 via the second locking blocks 62.

[0046] like Figure 12 As shown, two fourth fixing plates 71 are integrally formed on the outer surface of the second inner piece 7 to facilitate gripping of the second inner piece 7 by a robotic arm. The two fourth fixing plates 71 are connected by a fourth connecting rib, which is an integral structure with the fourth fixing plates 71 and the second inner piece 7. The fourth connecting rib helps to improve the support strength of the fourth fixing plates 71 and improves the stability of the second inner piece 7 during gripping.

[0047] In use, the robotic arm first grasps the base 2 via the second positioning block 22 and places the base 2 on the assembly table; the robotic arm places the junction box core 8 in the groove on the side wall of the base; then the robotic arm grasps the first outer piece 4, the first inner piece 5, the second outer piece 6, and the second inner piece 7 via the first fixing plate 41, the second fixing plate 51, the third fixing plate 61, and the fourth fixing plate 71 respectively, and places the first outer piece 4, the first inner piece 5, the second outer piece 6, and the second inner piece 7 on the lower slot 21 for positioning; glue is injected into the glue tank 23, and the robotic arm grasps the upper cover 1 via the first positioning block 12 and fixes the upper cover 1 on the base 2, with the tops of the first outer piece 4, the first inner piece 5, the second outer piece 6, and the second inner piece 7 locked in the upper slot 11; finally, the robotic arm grasps the pouring cup 3 via the positioning surface 32, inserts the positioning platform 33 of the pouring cup 3 into the positioning groove 14, and fixes the pouring cup 3 and the upper cover 1 with glue; thus completing the mold assembly.

[0048] Therefore, the motor housing forming mold described in this utility model can solve the problem that existing molds cannot meet the requirements of automated assembly and have low assembly efficiency.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A motor housing forming mold, comprising a top cover and a base, wherein a side plate composed of a first outer piece, a first inner piece, a second outer piece, and a second inner piece is disposed between the top cover and the base, characterized in that: The upper cover has a pouring cup inside, and a positioning groove for positioning the pouring cup is provided on the bottom upper surface of the upper cover. The bottom of the pouring cup has a positioning platform that matches the positioning groove. The pouring cup is fixedly spliced ​​to the upper cover through the positioning platform and the positioning groove. The sprue inside the pouring cup is connected to the flow channel provided on the bottom surface of the upper cover through the liquid passage provided on the bottom of the upper cover. The flow channel is connected to the cavity formed by the upper cover, side plate and base. A junction box core forming a motor junction box is provided between the base and the second outer piece.

2. The motor housing forming mold according to claim 1, characterized in that: The bottom surface of the top cover is provided with three flow channels evenly distributed, the top surface of the top cover is provided with an exhaust hole communicating with the cavity, and the top lower surface of the top cover is provided with an upper slot for positioning the top of the first outer piece, the first inner piece, the second outer piece, and the second inner piece.

3. The motor housing forming mold according to claim 1, characterized in that: The top sidewall of the cover is provided with a first positioning block to facilitate the gripping of the cover by a robotic arm.

4. The motor housing forming mold according to claim 1, characterized in that: The bottom upper surface of the base is provided with a lower slot for positioning the bottom of the first outer piece, the first inner piece, the second outer piece, and the second inner piece.

5. The motor housing forming mold according to claim 1, characterized in that: The base has a second positioning block on its bottom side wall to facilitate the robotic arm to grasp the base, and the top of the base has a glue groove to connect with the bottom of the top cover.

6. The motor housing forming mold according to claim 1, characterized in that: Two first fixing plates are provided on the outer surface of the first outer piece to facilitate the gripping of the first outer piece by the robotic arm. The two first fixing plates are connected by a first connecting rib, and the connecting rib, the first fixing plate, and the first outer piece are integral structures. First locking blocks are provided on both sides of the first outer piece to position the first inner piece and the second inner piece, respectively.

7. The motor housing forming mold according to claim 1, characterized in that: Two second fixing plates are provided on the outer side of the first inner piece to facilitate the gripping of the first inner piece by the robotic arm. The two second fixing plates are connected by a second connecting rib, and the second connecting rib, the second fixing plate, and the first inner piece are an integral structure.

8. The motor housing forming mold according to claim 1, characterized in that: The outer surface of the second outer piece is provided with two third fixing plates to facilitate the gripping of the second outer piece by the robotic arm. The two third fixing plates are connected by a third connecting rib, and the third connecting rib, the third fixing plate, and the second outer piece are an integral structure. The two sides of the second outer piece are provided with second locking blocks to position the first inner piece and the second inner piece respectively.

9. The motor housing forming mold according to claim 1, characterized in that: The outer surface of the second inner piece is provided with two fourth fixing plates to facilitate the robotic arm to grasp the second inner piece. The two fourth fixing plates are connected by a fourth connecting rib, and the fourth connecting rib, the fourth fixing plate, and the second inner piece are an integral structure.

10. The motor housing forming mold according to claim 1, characterized in that: The top side wall of the pouring cup is provided with a positioning surface that facilitates the robotic arm to grasp the pouring cup. The positioning surface is a plane, and two positioning surfaces are arranged opposite to each other on both sides of the pouring cup.

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