Casting device for motor shell

Abstract

The invention discloses a motor shell casting device which comprises a lower mold, an upper mold is arranged at the upper end of the lower mold, a left mold and a right mold are arranged between the upper mold and the lower mold, a fixing mechanism is arranged among the upper mold, the lower mold and the left mold and the right mold, and the fixing mechanism comprises a mounting hole, a protruding block, an extending block, a locking screw and a buckle. Mounting holes are formed in the four corners of the upper end surface of the lower mold and the four corners of the lower end surface of the upper mold correspondingly, protruding blocks are fixedly arranged at the upper ends and the lower ends of the left mold and the right mold correspondingly, extending blocks are fixedly arranged on the two sides of the surface of the lower mold correspondingly, and locking screws are fixedly arranged at the upper ends of the extending blocks. And buckles are fixedly arranged on the two sides of the surface of the upper mold. The device is good in using effect, for a casting mold with the four-module combined design, the device can drive the left mold and the right mold to be extruded and tightened only by fixing the upper mold and the lower mold, and therefore the assembling efficiency of the device can be greatly improved, and the using effect is improved.

Description

Technical Field

[0001] This invention relates to the field of motor housing manufacturing technology, specifically to a casting apparatus for motor housings. Background Technology

[0002] As a key component of electric motors, the casting quality of the motor housing directly affects the motor's performance and lifespan. With the increasing pursuit of efficiency, precision, and cost control in the manufacturing industry, traditional motor housing casting molds typically employ a four-module design: an upper core mold, a lower core mold, a left core mold, and a right core mold. These modules are fixed together to form the mold cavity. Molten iron is then poured in, and the casting process is completed after the iron cools and the risers are removed. However, in existing technologies, all four modules require fixing components, resulting in a large number of fixed parts in the overall device, making operation cumbersome and mold opening and closing difficult. Therefore, an improved motor housing casting device is needed to address this issue. Summary of the Invention

[0003] The purpose of this invention is to provide a casting apparatus for an electric motor housing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a casting device for an electric motor housing, comprising a lower mold, an upper mold at the upper end of the lower mold, left and right molds between the upper mold and the lower mold, and a fixing mechanism between the upper mold, the lower mold and the left and right molds, the fixing mechanism comprising mounting holes, protrusions, extension blocks, locking screws and buckles, mounting holes being provided at the four corners of the upper surface of the lower mold and the four corners of the lower surface of the upper mold, protrusions being fixedly provided at the upper and lower ends of the left and right molds, extension blocks being fixedly provided on both sides of the lower mold surface, locking screws being fixedly provided at the upper ends of the extension blocks, and buckles being fixedly provided on both sides of the upper mold surface.

[0005] Preferably, the outer surface of the protrusion is provided with a slope, and the inside of the mounting hole is provided with a ramp that matches the shape of the slope. In this way, when the protrusion is inserted into the mounting hole and subjected to vertical extrusion force, the vertical extrusion force will generate a component force due to the action of the slope and ramp, which will cause the left and right molds to come closer to each other and squeeze, thus automatically ensuring the extrusion sealing of the left and right molds and improving the mold closing effect of the device.

[0006] Preferably, the upper mold surface is fixedly provided with a pouring port, which allows for convenient pouring in the space formed by the upper mold, lower mold, and left and right molds to produce the motor housing.

[0007] Preferably, the pouring port is provided with two pouring ports. The purpose of this device is that by using the two pouring ports in sequence, the pouring quality can be improved and cavities can be prevented. At the same time, when one pouring port is used for pouring, the other pouring port can be used for venting.

[0008] Preferably, a fixing rod is fixedly provided on the outer surface of the lower mold on one side of the mounting hole, and a sleeve is fixedly provided on the lower end surface of the upper mold on one side of the mounting hole. When the upper mold and the lower mold are assembled and fixed, the sleeve can be sleeved on the upper half of the fixing rod. In this way, when the motor housing is poured later, a through hole can be automatically set at the four corners of the motor housing, which makes it more convenient to install the top cover and bottom cover of the motor later.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. By tightening the locking screws, the left and right molds and the upper and lower molds can be fixed and installed. Thus, for casting molds with a four-module combination design, this device only needs to fix the upper and lower molds to complete the overall fixing, thereby greatly improving the combination efficiency of this device.

[0011] 2. When the upper and lower molds are tightened, the left and right molds are subjected to vertical squeezing forces. At this time, due to the action of the inclined plane and slope, this vertical squeezing force will generate a component force, which will cause the left and right molds to come closer to each other and squeeze. This can automatically ensure the squeezing and sealing of the left and right molds and improve the mold closing effect of this device. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of a casting device for an electric motor housing according to the present invention;

[0013] Figure 2 This is a cross-sectional view of a casting apparatus for an electric motor housing according to the present invention. Figure 1 ;

[0014] Figure 3 This is a cross-sectional view of a casting apparatus for an electric motor housing according to the present invention. Figure 2 ;

[0015] Figure 4 This is an exploded view of a casting apparatus for an electric motor housing according to the present invention;

[0016] Figure 5 This is an overall structural view of the left and right molds in a casting device for an electric motor housing according to the present invention.

[0017] In the diagram: 1. Lower mold; 2. Upper mold; 3. Left and right molds; 4. Mounting hole; 5. Protrusion; 6. Extension block; 7. Locking screw; 8. Clip; 9. Inclined surface; 10. Slope; 11. Pouring port; 12. Fixing rod; 13. Sleeve. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-5 The present invention provides a technical solution: a motor housing casting device, which mainly consists of a lower mold 1, an upper mold 2, left and right molds 3 and a fixing mechanism.

[0020] The lower mold 1 is located at the bottom, the upper mold 2 is positioned above the lower mold 1, and the left and right molds 3 are placed between the upper mold 2 and the lower mold 1. The lower mold 1, upper mold 2, and left and right molds 3 are fixed by a fixing mechanism.

[0021] The fixing mechanism includes mounting holes 4, protrusions 5, extension blocks 6, locking screws 7, and clips 8. Mounting holes 4 are provided at the four corners of the upper surface of the lower mold 1 and the four corners of the lower surface of the upper mold 2. Protrusions 5 are fixedly installed at the upper and lower ends of the left and right molds 3. Extension blocks 6 are fixed on both sides of the surface of the lower mold 1, and locking screws 7 are installed on the upper ends of the extension blocks 6; clips 8 are fixed on both sides of the surface of the upper mold 2.

[0022] The outer surface of the protrusion 5 has a bevel 9, and the inside of the mounting hole 4 has a ramp 10 that matches the shape of the bevel 9. When the protrusion 5 is inserted into the mounting hole 4 and subjected to vertical extrusion, the vertical extrusion force generates a component force due to the action of the bevel 9 and the ramp 10, causing the left and right molds 3 to come closer to each other and extrude, automatically ensuring the extrusion seal and improving the mold closing effect.

[0023] Two pouring ports 11 are fixedly provided on the surface of the upper mold 2. The pouring ports 11 allow for convenient pouring into the space formed by the upper mold 2, lower mold 1, and left and right molds 3 for the production of motor housings. The purpose of providing two pouring ports 11 is to improve the pouring quality and prevent the formation of cavities when used sequentially; at the same time, when pouring is done through one pouring port 11, the other can be used for venting.

[0024] A fixing rod 12 is fixedly installed on the outer surface of the lower mold 1 on one side of the mounting hole 4, and a sleeve 13 is fixedly installed on the lower surface of the upper mold 2 on one side of the mounting hole 4. When the upper mold 2 and the lower mold 1 are assembled and fixed, the sleeve 13 is fitted onto the upper half of the fixing rod 12. When the motor housing is poured later, through holes can be automatically formed at the four corners of the motor housing, which facilitates the subsequent installation of the motor top cover and bottom cover.

[0025] Working principle: When using this device to assemble molds, first insert the left and right molds 3 into the mounting holes 4 of the lower mold 1 through the protrusions 5. Then, install the upper mold 2 through the mounting holes 4 and the protrusions 5 at the top of the left and right molds 3. Then tighten the locking screws 7 to complete the fixed installation of the left and right molds 3 and the upper and lower molds 1. In this way, for casting molds with a four-module combination design, this device only needs to fix the upper and lower molds 1 to complete the overall fixing, which can greatly improve the combination efficiency of this device.

[0026] When the upper and lower molds 1 are tightened, the left and right molds 3 will be subjected to vertical squeezing forces. At this time, due to the action of the inclined plane 9 and the ramp 10, this vertical squeezing force will generate a component force, which will cause the left and right molds 3 to come closer to each other and squeeze. This can automatically ensure the squeezing and sealing of the left and right molds 3 and improve the mold closing effect of this device.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting apparatus for an electric motor housing, comprising a lower mold (1), characterized in that: The lower mold (1) is provided with an upper mold (2) at its upper end. The upper mold (2) and the lower mold (1) are provided with left and right molds (3). The upper mold (2), the lower mold (1) and the left and right molds (3) are provided with a fixing mechanism. The fixing mechanism includes mounting holes (4), protrusions (5), extension blocks (6), locking screws (7) and buckles (8). Mounting holes (4) are provided at the four corners of the upper surface of the lower mold (1) and at the four corners of the lower surface of the upper mold (2). Protrusions (5) are fixedly provided at the upper and lower ends of the left and right molds (3). Extension blocks (6) are fixedly provided on both sides of the surface of the lower mold (1). Locking screws (7) are fixedly provided at the upper end of the extension blocks (6). Buckles (8) are fixedly provided on both sides of the surface of the upper mold (2).

2. The casting device for an electric motor housing according to claim 1, characterized in that: The outer surface of the protrusion (5) is provided with a slope (9), and the inside of the mounting hole (4) is provided with a ramp (10) that matches the shape of the slope (9).

3. The casting device for an electric motor housing according to claim 1, characterized in that: The upper mold (2) has a pouring port (11) fixedly provided on its surface.

4. The casting apparatus for an electric motor housing according to claim 3, characterized in that: There are two pouring ports (11).

5. The casting device for an electric motor housing according to claim 1, characterized in that: A fixing rod (12) is fixedly installed on the outer surface of the lower mold (1) on one side of the mounting hole (4), and a sleeve (13) is fixedly installed on the lower surface of the upper mold (2) on one side of the mounting hole (4).

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