Die-casting die for producing automobile body shell

Abstract

The utility model discloses a die casting die for automobile body shell production belongs to body shell production technical field, include: static die, the top die mechanism is set up in the chamber of static die, the vibration mechanism is set up on the both sides wall of static die, through the cooperation of each device between above, in the utility model, through being provided with top die mechanism and vibration mechanism, utilize the stroke of movable die to take down drive top die mechanism and vibration mechanism and work, realize the shell and the die cavity inner wall of die casting die to separate through vibration mechanism, thereby the shell in the die casting die is carried out to the top die mechanism and is lifted up, on one hand realizes the die casting die and shell to separate when automatic die separation, the die casting die and shell are separated conveniently, on the other hand, the die casting die demolding difficulty is reduced, the die casting die demolding efficiency is improved, further embodies the use convenience and practicality of die casting die.

Description

Technical Field

[0001] This utility model belongs to the field of automotive body shell production technology, and in particular relates to a die-casting mold for automotive body shell production. Background Technology

[0002] The car body shell, also known as the body-in-white, refers to the automotive body structure assembly that has been welded but has not yet been painted or fitted with any accessories. It is usually composed of hundreds of stamped metal sheets assembled by welding, riveting, bonding, etc. In the production of the car body shell, die casting molds are used. The high-pressure die casting process is used to inject liquid or semi-liquid light metal alloy into the mold cavity under high speed and high pressure. After cooling and solidification, it forms a one-piece molded body structure.

[0003] A search revealed Chinese Patent Publication No. CN218799006U, which discloses a die-casting mold for producing automobile body shells. The mold includes a support frame, a support ring installed in the middle of the inner cavity of the support frame, a lower mold installed at the top of the support ring, and an upper mold installed at the top of the support frame. The bottom of the upper mold is movably inserted into the lower mold. A limit frame is installed in the middle of the inner bottom wall of the support frame, and a toothed plate is movably installed inside the limit frame. A demolding rod is installed at the top of the toothed plate. A demolding hole is formed in the middle of the bottom of the lower mold, and the top of the demolding rod is movably inserted into the demolding hole. This invention controls a drive motor to rotate a drive rod, which in turn drives a drive gear to mesh with the toothed plate. This causes the toothed plate and the demolding rod to move upwards, allowing the demolding rod to insert into the demolding hole and eject the casting stuck in the lower mold, thus improving the efficiency of die casting.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Currently, most die-casting molds eject the housing through ejector pins during the ejection process. However, most ejector pins function as ejectors by the force generated by spring reset. But the spring force has an upper limit, and the housing may stick to the inner wall of the mold cavity, making it difficult to eject the housing from the mold cavity, thus reducing the demolding efficiency and demolding quality of the die-casting mold.

[0005] Therefore, this utility model provides a die-casting mold for producing automobile body shells to solve the above problems. Utility Model Content

[0006] This invention provides a die-casting mold for producing automobile body shells, aiming to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A die-casting mold for producing automobile body shells includes: a stationary mold, wherein the stationary mold has a cavity inside and a plurality of positioning holes are provided on the upper surface of the stationary mold; A moving mold, wherein a plurality of positioning rods are fixedly installed on the lower surface of the moving mold, and the positioning rods are adapted to the positioning holes; A top mold mechanism, which is disposed in the cavity of the stationary mold, is used to eject the die-cast shell; A vibration mechanism is provided on both sides of the stationary mold and is used to strike the stationary mold to cause it to vibrate. The top mold mechanism includes a fixed plate located inside the cavity of the stationary mold. Several support springs are fixedly installed on the lower surface of the fixed plate, and one end of each support spring is fixedly connected to the inner wall of the bottom surface of the cavity.

[0008] Furthermore, an ejector pin is fixedly installed on the upper surface of the fixing plate, one end of the ejector pin extends into the mold cavity of the stationary mold, and limit rods are fixedly installed on both sides of the fixing plate, one end of the limit rods extends out of both sides of the stationary mold.

[0009] Preferably, the vibration mechanism includes a mounting frame, which is fixedly mounted on both side walls of the static mold. A connecting spring is fixedly mounted on the side wall of the mounting frame, and a connecting plate is fixedly mounted on one end of the connecting spring.

[0010] Furthermore, a striking rod and a top rod are fixedly installed on the side wall of the connecting plate. One end of the striking rod passes through the interior of the connecting spring and extends into the interior of the mounting bracket, while the top rod is located outside the mounting bracket.

[0011] Preferably, a fixing rod is fixedly installed on both sides of the moving mold, and a plurality of top blocks are fixedly installed on the side wall of the fixing rod. The top blocks are configured as equilateral triangles, and the outer surface of the top blocks is in contact with one end of the top rod.

[0012] Furthermore, a stop block is fixedly installed on the side wall of the fixing rod. The stop block is configured as a straight-sided triangle, and a through groove is provided inside the fixing rod.

[0013] Furthermore, a fixing spring is fixedly installed on the other side wall of the fixing rod, a fixing plate is fixedly installed on one end of the fixing spring, a connecting rod is fixedly installed on the side wall of the fixing plate, and one end of the connecting rod passes through the interior of the fixing spring and extends into the interior of the through groove.

[0014] Furthermore, a lifting block is fixedly installed at one end of the connecting rod. The lifting block is configured as a right-angled trapezoid, and the fixing rod is located between the stop block and the lifting block.

[0015] The advantages and beneficial effects of this utility model are as follows: In this invention, a top mold mechanism and a vibration mechanism are provided. The stroke of the moving mold is used to drive the top mold mechanism and the vibration mechanism to work. The vibration mechanism separates the shell from the inner wall of the die-casting mold cavity, thereby facilitating the top mold mechanism to lift the shell inside the die-casting mold. On the one hand, it realizes automatic separation of the die-casting mold and the shell during mold separation, which is convenient for separation of the die-casting mold and the shell. On the other hand, it reduces the demolding difficulty of the die-casting mold and improves the demolding efficiency of the die-casting mold, further demonstrating the convenience and practicality of the die-casting mold. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a die-casting mold used for producing automobile body shells.

[0017] Figure 2 This is an exploded structural diagram of a die-casting mold used in the production of automobile body shells.

[0018] Figure 3 This is an exploded structural diagram of the stationary mold in a die-casting mold used for producing automobile body shells.

[0019] Figure 4 In a die-casting mold for producing automobile body shells Figure 3 A magnified structural diagram of point A in the middle.

[0020] Figure 5 This is an exploded view of the moving mold in a die-casting mold used for producing automobile body shells.

[0021] Among them, 1-static mold; 2-moving mold; 3-ejector mechanism; 31-fixed plate; 32-ejector pin; 33-support spring; 34-limiting rod; 4-vibration mechanism; 41-mounting bracket; 42-connecting spring; 43-connecting plate; 44-tapping rod; 45-ejector rod; 5-fixed rod; 6-ejector block; 7-stop block; 8-through groove; 9-fixed spring; 10-fixed plate; 11-connecting rod; 12-lifting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0023] In specific implementation, such as Figures 1-5 As shown, this utility model provides a technical solution: a die-casting mold for producing automobile body shells, including a stationary mold 1, the interior of which is provided with a cavity, and the upper surface of the stationary mold 1 is provided with a plurality of positioning holes; a moving mold 2, the lower surface of which is fixedly installed with a plurality of positioning rods, the positioning rods being adapted to the positioning holes; a top mold mechanism 3, which is disposed in the cavity of the stationary mold 1 and is used to eject the die-cast shell; and a vibration mechanism 4, which is disposed on both side walls of the stationary mold 1 and is used to strike the stationary mold 1 to cause it to vibrate; wherein, the top mold mechanism 3 includes a fixing plate 31, which is located in the cavity of the stationary mold 1, and the lower surface of the fixing plate 31 is fixedly installed with a plurality of support springs 33, one end of which is fixedly connected to the inner wall of the bottom surface of the cavity.

[0024] A ejector pin 32 is fixedly installed on the upper surface of the fixed plate 31. One end of the ejector pin 32 extends into the mold cavity of the stationary mold 1. Limiting rods 34 are fixedly installed on both sides of the fixed plate 31. One end of the limiting rods 34 extends out of both sides of the stationary mold 1.

[0025] Specifically, by setting the top mold mechanism 3, the shell is automatically ejected from the mold cavity when the die-casting mold is disassembled, reducing the difficulty of demolding the die-casting mold. When the moving mold 2 moves upward, it will drive the limiting rod 34 to move upward synchronously. When the limiting rod 34 moves upward, it will drive the top block 6, the stop block 7, and the lifting block 12 to move upward synchronously. As the lifting block 12 moves upward, it will drive the fixing plate 31 to move upward in the cavity through the limiting rod 34. At this time, the fixing plate 31 will drive the ejector pin 32 to move upward synchronously. As the ejector pin 32 moves upward in the mold cavity, it will lift the shell in the mold cavity. As the fixing plate 31 moves upward, it will lift the shell in the mold cavity. After a certain distance, the lifting block 12 is blocked. When the lifting block 12 continues to move upward, the lifting block 12 will retract into the through groove 8 because the position of the limiting rod 34 is fixed. After the lifting block 12 and the limiting rod 34 are misaligned, the moving mold 2 can be completely removed, and then the shell can be taken out. When installing the moving mold 2, the lifting block 12 needs to be retracted into the through groove 8 first. When the moving mold 2 descends, the limiting rod 34 is pressed down by the stop block 7, thereby moving the fixing plate 31 towards the bottom of the cavity, reducing the difficulty of removing the shell, facilitating the removal of the shell in the die-casting mold, and improving the efficiency of the die-casting mold.

[0026] The vibration mechanism 4 includes a mounting frame 41, which is fixedly mounted on both sides of the static mold 1. A connecting spring 42 is fixedly mounted on the side wall of the mounting frame 41, and a connecting plate 43 is fixedly mounted on one end of the connecting spring 42.

[0027] A striking rod 44 and a push rod 45 are fixedly installed on the side wall of the connecting plate 43. One end of the striking rod 44 passes through the interior of the connecting spring 42 and extends into the interior of the mounting bracket 41, while the push rod 45 is located outside the mounting bracket 41.

[0028] Fixed rods 5 are fixedly installed on both sides of the moving mold 2. Several top blocks 6 are fixedly installed on the side walls of the fixed rods 5. The top blocks 6 are set as equilateral triangles, and the outer surface of the top blocks 6 is in contact with one end of the top rod 45.

[0029] A stop 7 is fixedly installed on the side wall of the fixing rod 5. The stop 7 is set as a straight-sided triangle, and a through groove 8 is provided inside the fixing rod 5.

[0030] A fixing spring 9 is fixedly installed on the other side wall of the fixing rod 5. A fixing plate 10 is fixedly installed on one end of the fixing spring 9. A connecting rod 11 is fixedly installed on the side wall of the fixing plate 10. One end of the connecting rod 11 passes through the interior of the fixing spring 9 and extends into the interior of the through groove 8.

[0031] A lifting block 12 is fixedly installed at one end of the connecting rod 11. The lifting block 12 is set as a right trapezoid, and the fixing rod 5 is located between the stop block 7 and the lifting block 12.

[0032] Specifically, by setting up a vibration mechanism 4, the stationary mold 1 is struck during the material handling process, causing the stationary mold 1 to vibrate, which facilitates the demolding of the shell. When the fixed rod 5 drives the top block 6 to move upward, the top block 6 will squeeze one end of the top rod 45. At this time, the top rod 45 will move to one side of the stationary mold 1. When the top rod 45 moves, it will drive the connecting plate 43 to move synchronously. The connecting plate 43 will drive the striking rod 44 to move outward of the mounting bracket 41. At this time, the connection is in a stretched state. When the top rod 45 moves out of the top block 6, the connecting spring 42 will contract instantly, thereby driving the striking rod 44 to hit the surface of the stationary mold 1 through the connecting plate 43, causing the stationary mold 1 to vibrate, thereby separating the shell from the inner wall of the mold cavity, which facilitates the ejector mechanism 3 to eject the shell. Detailed Implementation

[0034] Align the positioning rod with the positioning hole, then merge the stationary mold 1 and the moving mold 2. Inject molten metal into the mold cavity through the injection port. After the molten metal in the mold cavity cools and solidifies, remove the moving mold 2. During the removal of the moving mold 2, drive the vibration mechanism 4 to strike the stationary mold 1, causing the stationary mold 1 to vibrate. At the same time, it will also drive the top mold mechanism 3 to move upward, pushing out the shell in the mold cavity.

[0035] The foregoing has provided a detailed description of a die-casting mold for producing automobile body shells, as provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A die-casting mold for producing automobile body shells, characterized in that, include: A stationary mold (1) has a cavity inside, and a number of positioning holes are provided on the upper surface of the stationary mold (1); a moving mold (2) has a number of positioning rods fixedly installed on the lower surface of the moving mold (2), and the positioning rods are adapted to the positioning holes; a top mold mechanism (3) is set in the cavity of the stationary mold (1) and is used to eject the die-cast shell; a vibration mechanism (4) is set on the two side walls of the stationary mold (1) and is used to strike the stationary mold (1) to make the stationary mold (1) vibrate; wherein, the top mold mechanism (3) includes a fixing plate (31), the fixing plate (31) is located in the cavity of the stationary mold (1), and a number of support springs (33) are fixedly installed on the lower surface of the fixing plate (31), and one end of the support springs (33) is fixedly connected to the inner wall of the bottom surface of the cavity.

2. The die-casting mold for producing automobile body shells according to claim 1, characterized in that, A ejector pin (32) is fixedly installed on the upper surface of the fixed plate (31). One end of the ejector pin (32) extends into the mold cavity of the stationary mold (1). Limiting rods (34) are fixedly installed on both sides of the fixed plate (31). One end of the limiting rods (34) extends to the outside of both sides of the stationary mold (1).

3. The die-casting mold for producing automobile body shells according to claim 1, characterized in that, The vibration mechanism (4) includes a mounting frame (41), which is fixedly mounted on both sides of the static mold (1). A connecting spring (42) is fixedly mounted on the side wall of the mounting frame (41), and a connecting plate (43) is fixedly mounted on one end of the connecting spring (42).

4. The die-casting mold for producing automobile body shells according to claim 3, characterized in that, A striking rod (44) and a top rod (45) are fixedly installed on the side wall of the connecting plate (43). One end of the striking rod (44) passes through the interior of the connecting spring (42) and extends into the interior of the mounting bracket (41). The top rod (45) is located outside the mounting bracket (41).

5. A die-casting mold for producing automobile body shells according to claim 1, characterized in that, Fixed rods (5) are fixedly installed on both sides of the moving mold (2). Several top blocks (6) are fixedly installed on the side walls of the fixed rods (5). The top blocks (6) are set as equilateral triangles, and the outer surface of the top blocks (6) is in contact with one end of the top rod (45).

6. The die-casting mold for producing automobile body shells according to claim 5, characterized in that, A stop block (7) is fixedly installed on the side wall of the fixing rod (5). The stop block (7) is set as a straight-sided triangle, and a through groove (8) is provided inside the fixing rod (5).

7. A die-casting mold for producing automobile body shells according to claim 5, characterized in that, A fixing spring (9) is fixedly installed on the other side wall of the fixing rod (5). A fixing plate (10) is fixedly installed on one end of the fixing spring (9). A connecting rod (11) is fixedly installed on the side wall of the fixing plate (10). One end of the connecting rod (11) passes through the interior of the fixing spring (9) and extends into the interior of the through groove (8).

8. A die-casting mold for producing automobile body shells according to claim 7, characterized in that, A lifting block (12) is fixedly installed at one end of the connecting rod (11). The lifting block (12) is set as a right trapezoid, and the fixing rod (5) is located between the stop block (7) and the lifting block (12).

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