Die-casting die for heat dissipation middle frame of vehicle-mounted millimeter wave radar

Abstract

The utility model discloses a vehicle-mounted millimeter wave radar heat dissipation middle frame die-casting die which comprises an upper die plate, a lower die plate, an upper die core, a lower die core, a fixing plate, an ejector pin plate and an ejector pin, the upper die core and the lower die core are oppositely arranged and form four cavities, every two cavities form a group, a first cinder ladle cavity is formed between the two cavities of each group, and a second cinder ladle cavity is formed between the upper die core and the lower die core. A first exhaust channel is formed in the lower mold core and communicated with the first cinder ladle cavity, the first exhaust channel is in a Y shape, and the top end of the first exhaust channel extends to the first cinder ladle cavity. The Y-shaped first exhaust channel is arranged between the first cinder ladle cavities, so that the tail ends of the two first cinder ladle cavities can be connected with the exhaust channel under the conditions that the size of the mold is not changed and the distance between the adjacent mold cavities is small, air in the mold cavities can be effectively exhausted during pressure casting, the compactness of a product is improved, and the service life of the product is prolonged. Air holes formed in the product are greatly reduced, the product quality is guaranteed, and therefore the performance requirement of the product is guaranteed.

Description

Technical Field

[0001] This utility model relates to a die-casting mold, and more particularly to a die-casting mold for a heat dissipation frame of an automotive millimeter-wave radar. Background Technology

[0002] With the development of new energy vehicles, the components of automobiles are diverse, but the precision and performance requirements of each component are very high. For example, in the case of automotive millimeter-wave radar, during the actual die-casting process, air holes are easily formed inside and on the surface of the heat dissipation frame of automotive millimeter-wave radar, which affects the quality of the product. Utility Model Content

[0003] The purpose of this utility model is to provide a die-casting mold for the heat dissipation frame of an vehicle-mounted millimeter-wave radar that can solve at least one of the above problems.

[0004] According to one aspect of this utility model, a die-casting mold for a heat dissipation frame of a vehicle-mounted millimeter-wave radar is provided, including an upper mold plate, a lower mold plate, an upper mold core, a lower mold core, a fixed plate, an ejector plate, and ejector pins. The upper mold plate, the lower mold plate, and the fixed plate are arranged sequentially from top to bottom. The upper mold core is fixed below the upper mold plate, and the lower mold core is fixed above the lower mold plate. The upper mold core and the lower mold core are arranged opposite to each other and form a cavity. The ejector plate is located inside the fixed plate. One end of the ejector pin is fixed to the ejector plate, and the other end can penetrate the lower mold plate and the lower mold core and extend into the cavity. There are four cavities, with each pair of cavities forming a group. A first slag-filled cavity is provided between the two cavities in each group. A first venting channel is provided on the lower mold core. The first venting channel is connected to the first slag-filled cavity. The first venting channel is Y-shaped, and its top extends to the first slag-filled cavity.

[0005] The beneficial effects of this utility model are as follows: by providing a Y-shaped first exhaust channel between the first slag chambers, under the condition that the mold size remains unchanged and the distance between adjacent cavities is small, the ends of the two first slag chambers can be connected to the exhaust channel, so that the air in the cavity can be effectively removed during die casting, improving the density of the product, greatly reducing the porosity formed on the product, ensuring product quality, and thus helping to ensure the performance requirements of the product.

[0006] In some embodiments, a second slag-filled cavity is provided on one of the outer surfaces of the mold cavity, and a second venting channel is provided on the lower mold core. The second venting channel is L-shaped and communicates with the second slag-filled cavity. Thus, the L-shaped second venting channel can increase the venting stroke while keeping the size of the lower mold core unchanged, facilitating the discharge of gas from the mold cavity and reducing the formation of pores on the product.

[0007] In some embodiments, a third slag-filled cavity is provided on another outer side of the mold cavity, and a third venting channel is provided on the lower mold core. The third venting channel is Z-shaped and is connected to the third slag-filled cavity. Thus, through the Z-shaped third venting channel, the venting stroke can be further increased while keeping the size of the lower mold core unchanged, which facilitates the discharge of gas from the mold cavity and reduces the formation of pores on the product.

[0008] In some embodiments, there are multiple second and third slag cavities. This facilitates the flow of excess raw material into the corresponding slag cavities during die casting, thus ensuring the uniformity of the die-cast product.

[0009] In some embodiments, the lower mold core is provided with a runner, which is located between the two sets of cavities and is connected to each cavity. Thus, by providing a runner, it is convenient to form the corresponding product in each cavity.

[0010] In some embodiments, the die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar also includes a feeding pipe that passes through the upper mold plate and connects downwards to the flow channel. Thus, by providing a feeding pipe, it is convenient to connect to an external conveying structure, facilitating the transport of die-casting materials.

[0011] In some embodiments, the die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar also includes guide pillars, which are sleeved on the ejector plate and fixed to the bottom end of the lower mold plate. Thus, the guide pillars guide the movement of the ejector plate, facilitating its smooth lifting and lowering. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar of this utility model in the mold-closed state.

[0013] Figure 2 This is a cross-sectional structural schematic diagram of the die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the lower mold core in the die-casting mold of the heat dissipation frame for vehicle-mounted millimeter-wave radar of this utility model.

[0015] Figure 4 This is a structural schematic diagram of the lower mold core of the die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar of this utility model. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Reference Figures 1-4The die-casting mold for the heat dissipation frame of a vehicle-mounted millimeter-wave radar includes an upper mold plate 1, a lower mold plate 2, an upper mold core 3, a lower mold core 4, a fixing plate 5, an ejector plate 6, and an ejector pin 7. The upper mold plate 1, the lower mold plate 2, and the fixing plate 5 are arranged sequentially from top to bottom. The upper mold core 3 is fixed below the upper mold plate 1, and the lower mold core 4 is fixed above the lower mold plate 2. The upper mold core 3 and the lower mold core 4 are arranged opposite to each other and form a cavity 8. The ejector plate 6 is located inside the fixing plate 5. One end of the ejector pin 7 is fixed on the ejector plate 6, and the other end can penetrate the lower mold plate 2 and the lower mold core 4 and extend into the cavity 8. There are four cavities 8, and each pair of cavities 8 forms a group. A first slag-filled cavity 41 is provided between the two cavities 8 in each group. A first venting channel 42 is provided on the lower mold core 4. The first venting channel 42 is connected to the first slag-filled cavity 41. The first venting channel 42 is Y-shaped, and its top extends to the first slag-filled cavity 41.

[0018] By incorporating multiple cavities, this mold can simultaneously die-cast four products, ensuring high production efficiency. In use, the die-casting mold for the vehicle-mounted millimeter-wave radar heat dissipation frame allows for pouring of material into the cavities after the upper mold core 3 and lower mold core 4 mate. The mold then die-casts the fluid within the cavities to form the corresponding vehicle-mounted millimeter-wave radar heat dissipation frame. As the die-casting material is poured into the cavity 8, air within the cavity 8 is gradually squeezed out and flows through the first slag-filled cavity 41 to the Y-shaped first venting channel 42. This facilitates the discharge of gas from the cavity 8, effectively reducing residual air and minimizing porosity in the die-cast product. The Y-shaped first venting channel 42 allows the end of the first slag-filled cavity 41 to connect with the first venting channel 42 while maintaining a constant distance between each pair of cavities 8, achieving venting without increasing the mold volume and improving the density of the die-cast product.

[0019] A second slag-filled cavity 43 is provided on one of the outer surfaces of the cavity 8, and a second venting channel 44 is provided on the lower mold core 4. The second venting channel 44 is L-shaped and is connected to the second slag-filled cavity 43.

[0020] The other outer side of the cavity 8 is provided with a third slag-filled cavity 45, and the lower mold core 4 is provided with a third venting channel 46. The third venting channel 46 is Z-shaped and is connected to the third slag-filled cavity 45.

[0021] Both the second slag cavity 43 and the third slag cavity 45 are multiple.

[0022] Therefore, by providing corresponding slag pockets on multiple sides of the mold cavity 8, the overflow material during die casting is easily squeezed into the corresponding slag pocket cavity, facilitating the separation of the slag pocket from the product after demolding and simplifying the handling of overflow. Each corresponding slag pocket cavity is connected to a corresponding venting channel, with the second venting channel 44 being L-shaped and the third venting channel 46 being Z-shaped. Therefore, while maintaining the same size of the lower mold core, the venting stroke of each cavity can be increased, allowing air within the cavity to escape through each venting channel, improving the density of the die-cast product, reducing the formation of porosity within the product, and ensuring product quality.

[0023] The lower mold core 4 is provided with a runner 47, which is located between the two sets of cavities 8 and is connected to each cavity. Thus, through the reasonable distribution of the runners 47, it is convenient for the runners 47 to supply material to each cavity, thereby meeting the die-casting requirements of the product.

[0024] The vehicle-mounted millimeter-wave radar heat dissipation frame die-casting mold of this utility model also includes a feeding pipe 9, which passes through the upper template 1 and connects downward to the flow channel 47. Through the feeding pipe 9, it is convenient to connect with the external material conveying structure and to convey the die-casting material into the flow channel 47, which then flows into each cavity connected to the flow channel 47.

[0025] The die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar also includes guide pillars 10, which are sleeved on the ejector plate 6 and fixed to the bottom end of the lower template 2. By providing guide pillars 10, the lifting and lowering of the ejector plate 6 can be guided, thereby facilitating the smooth lifting and lowering of the ejector plate 6.

[0026] The specific working process of the die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar of this utility model is as follows:

[0027] When the product needs to be die-cast, the upper mold plate 1 moves the upper mold core 3 to the lower mold plate 2 until the upper mold core 3 and the lower mold core 4 are engaged. Once the upper mold core 3 and the lower mold core 4 are in place, the mold is closed. Then, material is fed into the flow channel 47 through the feeding pipe 9, filling all four cavities and completing the die casting process within the cavities. During die casting, overflow flows into each slag chamber, and air in the cavity 8 flows through each slag chamber to the corresponding venting channel, facilitating air removal and ensuring the quality of the die casting.

[0028] After the product is die-cast, the mold is opened. The upper mold plate 1 moves the upper mold core 3 upward, away from the lower mold plate 2, so that the upper mold core 3 separates from the product die-cast in the cavity. When the upper mold plate 1 moves into place, the ejector plate 6 moves upward, and the ejector pin 7 moves upward with the ejector plate 6, so that the ejector pin 7 pushes the product out of the cavity. The slag bags obtained in each slag bag cavity are also pushed out by the corresponding ejector pin 7, realizing the demolding of the product.

[0029] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A die-casting mold for a heat dissipation frame of an automotive millimeter-wave radar, characterized in that, The mold includes an upper template (1), a lower template (2), an upper mold core (3), a lower mold core (4), a fixing plate (5), an ejector plate (6), and ejector pins (7). The upper template (1), lower template (2), and fixing plate (5) are arranged from top to bottom. The upper mold core (3) is fixed below the upper template (1), and the lower mold core (4) is fixed above the lower template (2). The upper mold core (3) and lower mold core (4) are arranged opposite to each other and form a cavity (8). The ejector plate (6) is located inside the fixing plate (5), and the ejector pins... One end of (7) is fixed on the ejector plate (6), and the other end can penetrate the lower template (2) and the lower mold core (4) and extend into the cavity (8). There are four cavities (8), and each pair of cavities (8) forms a group. A first slag-filled cavity (41) is provided between the two cavities (8) in each group. A first venting channel (42) is provided on the lower mold core (4). The first venting channel (42) is connected to the first slag-filled cavity (41). The first venting channel (42) is Y-shaped, and its top extends to the first slag-filled cavity (41).

2. The die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar according to claim 1, characterized in that, One of the outer sides of the cavity (8) is provided with a second slag-filled cavity (43), and the lower mold core (4) is provided with a second exhaust channel (44). The second exhaust channel (44) is L-shaped and is connected to the second slag-filled cavity (43).

3. The die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar according to claim 2, characterized in that, The other outer side of the cavity (8) is provided with a third slag-filled cavity (45), and the lower mold core (4) is provided with a third venting channel (46). The third venting channel (46) is Z-shaped and is connected to the third slag-filled cavity (45).

4. The die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar according to claim 3, characterized in that, There are multiple second slag cavities (43) and third slag cavities (45).

5. The die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar according to claim 4, characterized in that, The lower mold core (4) is provided with a flow channel (47), which is located between two sets of cavities (8) and is connected to each cavity.

6. The die-casting mold for the heat dissipation frame of the vehicle-mounted millimeter-wave radar according to claim 5, characterized in that, It also includes a feeding pipe (9), which passes through the upper template (1) and then connects downward to the flow channel (47).

7. The die-casting mold for the heat dissipation frame of an automotive millimeter-wave radar according to any one of claims 1 to 6, characterized in that, It also includes a guide post (10), which is sleeved on the ejector plate (6) and fixed to the bottom end of the lower template (2).

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