Differential shell modeling mold for sand mixer

Abstract

The utility model discloses a differential shell modeling mould for a sand mixer, which comprises a base and a frame fixedly connected to the top of the base, an upper mould mechanism is mounted on the frame, a lower mould body is mounted on the base and corresponds to the upper mould mechanism, and an ejection component is mounted at the bottom of the base and corresponds to the lower mould body. The upper die mechanism comprises an electric cylinder fixedly connected to the rack, the output end of the electric cylinder is fixedly connected with an upper die body, and clamping positioning assemblies are installed on the two sides of the upper die body. According to the utility model, through the arrangement of the clamping and positioning assembly, stable die assembly of the clamping and positioning assembly and the lower die body can be realized when the upper die body and the lower die body are assembled, so that the production quality of the differential shell is ensured, and meanwhile, through the liftable ejection plate, the differential shell can be conveniently ejected out after the production of the differential shell is finished, and the production efficiency is improved. Therefore, the production efficiency of the differential shell is improved.

Description

Technical Field

[0001] This utility model relates to the field of differential shell molding mold technology, and in particular to a differential shell molding mold for a sand mixer. Background Technology

[0002] A differential is a mechanism that enables the left and right (or front and rear) drive wheels to rotate at different speeds. The differential is a device used to adjust the speed difference between the left and right wheels. The differential is also one of the main components of a sand mixer. The housing of the differential requires a molding die during the production process.

[0003] For example, Chinese patent CN212917583U discloses a casting mold for an automobile differential housing, including a casting mold shell, support legs, flow control valve, cooling heat dissipation chamber, forming mold base, template, forming punch, drive motor, gear and moving gear rack. The forming mold base is provided at the bottom inside the casting mold shell, and the template is fixedly connected to the top of the forming mold base. The template has a shell cavity corresponding to the material of the differential housing. The forming mold base is threadedly connected to the upper fixing plate by positioning bolts.

[0004] Although the above technical solutions have solved the corresponding technical problems, they still have the following drawbacks:

[0005] The above technical solution makes it inconvenient to eject the differential housing after production, thereby reducing the production efficiency of the differential housing. Utility Model Content

[0006] The purpose of this utility model is to provide a differential housing molding die for a sand mixer. By setting a snap-fit ​​positioning component, it can achieve stable mold closing between the upper mold body and the lower mold body when the upper mold body and the lower mold body are closed, thereby ensuring the production quality of the differential housing. At the same time, through the liftable ejector plate, the differential housing can be conveniently ejected after the differential housing is produced, thereby improving the production efficiency of the differential housing.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A differential shell molding die for a sand mixer includes:

[0009] The base and a frame fixedly connected to the top of the base, an upper mold mechanism is installed on the frame, a lower mold body is installed on the base and at a position corresponding to the upper mold mechanism, and an ejection assembly is installed at the bottom of the base and at a position corresponding to the lower mold body.

[0010] The aforementioned sand mixer uses a differential shell molding mold, wherein the upper mold mechanism includes an electric cylinder fixedly connected to the frame, an upper mold body is fixedly connected to the output end of the electric cylinder, and snap-fit ​​positioning components are installed on both sides of the upper mold body.

[0011] The aforementioned differential shell molding die for a sand mixer includes a locking and positioning assembly comprising a mounting base fixedly connected to the side of the upper mold body, a rotating locking rod rotatably mounted on the bottom of the mounting base via a connecting shaft, a first locking block fixedly connected to the bottom of the side of the rotating locking rod, a second locking block matching the first locking block being mounted on the side of the lower mold body at a position corresponding to the first locking block, a connecting spring fixedly connected to the side of the rotating locking rod, and the other end of the connecting spring being fixedly connected to the bottom of the mounting base.

[0012] The aforementioned sand mixer uses a differential shell molding mold, wherein an operating handle is fixedly connected to the side of the rotating lever away from the first locking block.

[0013] The aforementioned differential shell molding mold for a sand mixer includes an ejector assembly comprising a liftable ejector plate. Two symmetrically arranged ejector rods are fixedly connected to the bottom of the ejector plate, and the ejector rods are slidably connected to the base. The bottoms of the two ejector rods are fixedly connected through a force plate. A return spring is fixedly connected to the center of the top of the force plate, and the other end of the return spring is fixedly connected to the base.

[0014] The aforementioned sand mixer uses a differential shell molding mold, wherein a fixed frame is fixedly connected to the bottom of the base, a servo motor is mounted on the side of the fixed frame, a drive shaft is fixedly connected to the output shaft of the servo motor, and an eccentric wheel is fixedly connected to the drive shaft at a position corresponding to the force plate.

[0015] This utility model has at least the following beneficial effects:

[0016] The differential housing molding die for a sand mixer provided by this utility model, by setting a snap-fit ​​positioning component, can achieve stable mold closing between the snap-fit ​​positioning component and the lower mold body when the upper mold body and the lower mold body are closed, thereby ensuring the production quality of the differential housing. At the same time, through the liftable ejector plate, the differential housing can be conveniently ejected after the differential housing is produced, thereby improving the production efficiency of the differential housing. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of the differential shell molding die for the sand mixer of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the differential shell molding die for the sand mixer of this utility model;

[0020] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;

[0021] Figure 4 This is a schematic diagram of the lower mold body in the differential shell molding die for the sand mixer of this utility model;

[0022] Figure 5 This is a schematic diagram of the ejector component in the differential shell molding mold for the sand mixer of this utility model.

[0023] Explanation of icon numbers:

[0024] 1. Base; 2. Frame; 3. Upper mold mechanism; 4. Lower mold body; 5. Ejection assembly;

[0025] 301. Electric cylinder; 302. Upper mold body; 303. Snap-fit ​​positioning assembly;

[0026] 3031. Mounting base; 3032. Rotating lever; 3033. First locking block; 3034. Second locking block; 3035. Connecting spring; 3036. Operating handle;

[0027] 501. Ejector plate; 5011. Ejector rod; 5012. Force plate; 5013. Return spring;

[0028] 502, Fixture; 5021, Servo Motor; 5022, Drive Shaft; 5023, Eccentric Wheel. Detailed Implementation

[0029] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0030] Please refer to Figures 1 to 5 As shown, an embodiment of the present invention provides a differential shell molding mold for a sand mixer, comprising: a base 1 and a frame 2 fixedly connected to the top of the base 1, an upper mold mechanism 3 installed on the frame 2, a lower mold body 4 installed on the base 1 at a position corresponding to the upper mold mechanism 3, the upper part of the lower mold body 4 having a differential shell forming cavity for a sand mixer, and an ejector assembly 5 installed at the bottom of the base 1 at a position corresponding to the lower mold body 4.

[0031] By adopting the above technical solution, not only can the snap-fit ​​positioning component 303 be set to achieve stable mold closing between the upper mold body 302 and the lower mold body 4 when the mold is closed, thus ensuring the production quality of the differential housing, but also the differential housing can be conveniently ejected after the differential housing is produced by the liftable ejector plate 501, thereby improving the production efficiency of the differential housing.

[0032] Please refer to Figures 1 to 5 As shown, the upper mold mechanism 3 includes an electric cylinder 301 fixedly connected to the frame 2. An upper mold body 302 is fixedly connected to the output end of the electric cylinder 301. A snap-fit ​​positioning assembly 303 is installed on both sides of the upper mold body 302. The snap-fit ​​positioning assembly 303 includes a mounting base 3031 fixedly connected to the side of the upper mold body 302. A rotating locking rod 3032 is rotatably mounted on the bottom of the mounting base 3031 via a connecting shaft. A first locking block 3033 is fixedly connected to the bottom of the side of the rotating locking rod 3032. A second locking block matching the first locking block 3033 is installed on the side of the lower mold body 4 at a position corresponding to the first locking block 3033. 3034, A connecting spring 3035 is fixedly connected to the side of the rotating clamp 3032. The other end of the connecting spring 3035 is fixedly connected to the bottom of the mounting base 3031. When the upper mold body 302 is moved down by the electric cylinder 301, the rotating clamp 3032 is also moved down. The first clamp 3033 is pressed by the second clamp 3034. When the first clamp 3033 moves past the second clamp 3034, the upper mold body 302 and the lower mold body 4 can be conveniently positioned by the mutual locking between the first clamp 3033 and the second clamp 3034 under the elastic force of the connecting spring 3035.

[0033] Please refer to Figures 1 to 5 As shown, an operating handle 3036 is fixedly connected to the side of the rotating lever 3032 away from the first locking block 3033. The operating handle 3036 facilitates the operation of the rotating lever 3032, thereby improving the separation between the upper mold body 302 and the lower mold body 4.

[0034] Please refer to Figures 1 to 5 As shown, the ejector assembly 5 includes a liftable ejector plate 501. Two symmetrically arranged ejector rods 5011 are fixedly connected to the bottom of the ejector plate 501, and the ejector rods 5011 are slidably connected to the base 1. The bottoms of the two ejector rods 5011 are fixedly connected through a force plate 5012. A return spring 5013 is fixedly connected to the center of the top of the force plate 5012. The other end of the return spring 5013 is fixedly connected to the base 1. The liftable ejector plate 501 facilitates the ejection of the formed differential housing.

[0035] Please refer to Figures 1 to 5As shown, a fixed frame 502 is fixedly connected to the bottom of the base 1. A servo motor 5021 is mounted on the side of the fixed frame 502. A drive shaft 5022 is fixedly connected to the output shaft of the servo motor 5021. An eccentric wheel 5023 is fixedly connected to the drive shaft 5022 at a position corresponding to the force plate 5012. The servo motor 5021 drives the drive shaft 5022 to rotate, and the eccentric wheel 5023 presses the force plate 5012 with different radii, which facilitates the upward movement of the ejector plate 501, thus facilitating the ejection of the formed differential housing.

[0036] The working principle of this utility model is as follows: First, the upper mold body 302 is moved downward by the electric cylinder 301. At the same time, the rotating clamping rod 3032 is moved downward by the electric cylinder 301. The first clamping block 3033 is pressed by the second clamping block 3034. When the first clamping block 3033 moves past the second clamping block 3034, the upper mold body 302 and the lower mold body 4 are conveniently positioned by the mutual locking between the first clamping block 3033 and the second clamping block 3034 under the elastic force of the connecting spring 3035, thus ensuring the production quality of the differential housing. At the same time, the drive shaft 5022 is rotated by the servo motor 5021, and the eccentric wheel 5023 presses the force plate 5012 with different radii, which facilitates the upward movement of the ejector plate 501. Therefore, it is convenient to eject the formed differential housing, thereby improving the production efficiency of the differential housing.

[0037] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A differential shell molding die for a sand mixer, comprising a base (1) and a frame (2) fixedly connected to the top of the base (1), characterized in that, An upper mold mechanism (3) is installed on the frame (2), a lower mold body (4) is installed on the base (1) at the position corresponding to the upper mold mechanism (3), and an ejection assembly (5) is installed at the bottom of the base (1) at the position corresponding to the lower mold body (4). The upper mold mechanism (3) includes an electric cylinder (301) fixedly connected to the frame (2). An upper mold body (302) is fixedly connected to the output end of the electric cylinder (301). A snap-fit ​​positioning assembly (303) is installed on both sides of the upper mold body (302). The snap-fit ​​positioning assembly (303) includes a mounting base (3031) fixedly connected to the side of the upper mold body (302). A rotating locking rod (3032) is rotatably mounted on the bottom of the mounting base (3031) via a connecting shaft. A first locking block (3033) is fixedly connected to the bottom of the side of the rotating locking rod (3032). A second locking block (3034) matching the first locking block (3033) is installed on the side of the lower mold body (4) at a position corresponding to the first locking block (3033). A connecting spring (3035) is fixedly connected to the side of the rotating locking rod (3032). The other end of the connecting spring (3035) is fixedly connected to the bottom of the mounting base (3031).

2. The differential shell molding die for a sand mixer according to claim 1, characterized in that: An operating handle (3036) is fixedly connected to the side of the rotating lever (3032) away from the first locking block (3033).

3. The differential shell molding die for a sand mixer according to claim 1, characterized in that: The ejection assembly (5) includes a liftable ejection plate (501). Two ejection rods (5011) are fixedly connected to the bottom of the ejection plate (501) and are symmetrically arranged. The ejection rods (5011) are slidably connected to the base (1). The bottoms of the two ejection rods (5011) are fixedly connected through a force plate (5012). A return spring (5013) is fixedly connected to the center of the top of the force plate (5012). The other end of the return spring (5013) is fixedly connected to the base (1).

4. A differential shell molding die for a sand mixer according to claim 3, characterized in that: A fixed frame (502) is fixedly connected to the bottom of the base (1). A servo motor (5021) is installed on the side of the fixed frame (502). A drive shaft (5022) is fixedly connected to the output shaft of the servo motor (5021). An eccentric wheel (5023) is fixedly connected to the drive shaft (5022) at a position corresponding to the force plate (5012).

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