Automobile die-casting die frame with high-precision die assembly guide structure

Abstract

The utility model relates to the technical field of automobile die-casting die frames, and discloses an automobile die-casting die frame with a high-precision die assembly guide structure, which comprises a box body, a hydraulic rod is fixedly connected to the upper surface of the box body, a fixing plate is fixedly connected to the output end of the hydraulic rod, an upper die is fixedly connected to the lower surface of the fixing plate, and a lower die is fixedly connected to the lower surface of the upper die. A lower mold is fixedly connected to the interior of the box body, a guide rod is fixedly connected to the upper surface of the lower mold, the interior of the fixing plate is slidably connected to the side wall of the guide rod, and a cushioning assembly is arranged on the side wall of the lower mold; a cooling assembly is arranged on the side wall of the box body, a cushioning assembly comprises a mounting plate, the lower surface of the mounting plate is fixedly connected into the box body, and a fixing sleeve is fixedly connected into the mounting plate. According to the damping device, the fixing block extrudes the pressing plate to enable the rotating strip to push the sliding block to extrude the spring, so that the damper absorbs generated pressure, the damping effect is achieved, and the protection effect of the damping device is improved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile die-casting mold frames, in particular to an automobile die-casting mold frame with a high-precision mold closing guide structure. Background Art

[0002] With the rapid development of the automotive industry, the requirements for the quality and precision of auto parts are becoming increasingly stringent. Automotive die-casting mold bases with high-precision mold clamping guide structures play a vital role in auto parts production. These mold bases ensure mold accuracy during the clamping process, thereby improving the dimensional accuracy and surface quality of die-cast parts.

[0003] Existing automotive die-casting mold bases typically consist of a movable mold, a fixed mold, a guide mechanism, and an ejection mechanism. During the mold closing process, the movable mold moves along the guide mechanism toward the fixed mold, achieving precise mold closing. The guide mechanism typically utilizes a combination of guide pins and guide sleeves to ensure accurate relative positioning between the movable and fixed molds. To enhance mold base stability, some mold bases also incorporate reinforcement ribs and support columns.

[0004] Some existing automotive die-casting mold frames with high-precision mold guide structures have relatively weak ability to withstand impact during mold closing. The impact force without shock absorption treatment can easily cause local collapse of the cavity, thereby affecting product quality and mold life. Therefore, an automotive die-casting mold frame with a high-precision mold guide structure is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an automobile die-casting mold frame with a high-precision mold closing guide structure, aiming to improve the problem that some automobile die-casting mold frames with high-precision mold closing guide structures in the existing technology have relatively weak ability to withstand impact during mold closing. The impact force without shock absorption treatment can easily cause local collapse of the cavity, thereby affecting product quality and mold life.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An automotive die-casting mold frame with a high-precision mold clamping guide structure comprises a box body, a hydraulic rod fixedly connected to the upper surface of the box body, a fixed plate fixedly connected to the output end of the hydraulic rod, an upper mold fixedly connected to the lower surface of the fixed plate, a lower mold fixedly connected to the interior of the box body, a guide rod fixedly connected to the upper surface of the lower mold, a side wall of the guide rod slidably connected to the interior of the fixed plate, a shock-absorbing assembly provided on the side wall of the lower mold, and a cooling assembly provided on the side wall of the box body.

[0008] The damping assembly includes a mounting plate, the lower surface of the mounting plate is fixedly connected to the inside of the box, a fixing sleeve is fixedly connected to the inside of the mounting plate, a damper is provided inside the fixing sleeve, the upper surface of the damper is fixedly connected to a pressure plate, the side wall of the fixing plate is fixedly connected to a fixing block, the inner wall of the mounting plate is fixedly connected to a fixing rod, one end of the fixing rod is fixedly connected to the side wall of the fixing sleeve, the side wall of the fixing rod is slidably connected to a sliding block, the side wall sleeve of the fixing rod is provided with a spring, the side wall of the sliding block is rotatably connected to a rotating bar, and one end of the rotating bar is rotatably connected to the lower surface of the pressure plate;

[0009] As a further description of the above technical solution:

[0010] The cooling assembly includes a water tank, the side wall of the water tank is fixedly connected to the side wall of the box body, the side wall of the box body is fixedly connected to a cooler, and the inside of the box body is fixedly connected to a fan;

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the side wall of the mounting plate, and the other end of the spring is fixedly connected to the side wall of the sliding block;

[0013] As a further description of the above technical solution:

[0014] A piston is provided on the upper surface of the water tank, and a water pump is fixedly connected to the upper surface of the water tank;

[0015] As a further description of the above technical solution:

[0016] The water pump input end is fixedly connected to a connecting pipe 1, and one end of the connecting pipe 1 is fixedly connected to the inside of the water tank;

[0017] As a further description of the above technical solution:

[0018] The output end of the water pump is fixedly connected to a delivery pipe, and one end of the delivery pipe is fixedly connected to the inside of the cooler;

[0019] As a further description of the above technical solution:

[0020] The side wall of the cooler is fixedly connected to a circulating water pipe, and the side wall of the circulating water pipe is fixedly connected to the inside of the lower mold;

[0021] As a further description of the above technical solution:

[0022] The side wall of the water tank is fixedly connected with a connecting pipe 2, and one end of the connecting pipe 2 is fixedly connected to one end of the circulating water pipe.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, the fixed block squeezes the pressure plate, allowing the rotating bar to push the sliding block to squeeze the spring, so that the damper absorbs the generated pressure to achieve a shock-absorbing effect. This solves the problem that some automotive die-casting mold frames with high-precision mold guide structures have relatively weak ability to withstand impact during mold closing. The impact force without shock absorption treatment can easily cause local collapse of the cavity, thereby affecting product quality and mold life. The above structure improves the protection effect of the equipment.

[0025] 2. In the utility model, the water in the water tank is transported to the cooler for cooling through a water pump, and then enters the cooling water pipe, so that it absorbs the heat generated during mold closing to achieve an auxiliary rapid cooling effect. The water after absorbing the heat is then returned to the inside of the water tank through the connecting pipe, achieving a circulation effect and reducing the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of the automobile die-casting mold frame with a high-precision mold clamping guide structure proposed by the utility model;

[0027] Figure 2 This is a schematic structural diagram of the mounting plate of the automotive die-casting mold frame with a high-precision mold clamping guide structure proposed by the present invention;

[0028] Figure 3 This is a schematic structural diagram of the box body of the automotive die-casting mold frame with a high-precision mold clamping guide structure proposed by the present invention;

[0029] Figure 4 This is a structural schematic diagram of a water tank of an automobile die-casting mold frame with a high-precision mold guide structure proposed by the present invention.

[0030] Legend:

[0031] 1. Box body; 2. Hydraulic rod; 3. Fixed plate; 4. Upper mold; 5. Lower mold; 6. Guide rod; 7. Mounting plate; 8. Fixed sleeve; 9. Damper; 10. Pressure plate; 11. Fixed block; 12. Fixed rod; 13. Sliding block; 14. Spring; 15. Rotating bar; 16. Fan; 17. Water tank; 18. Cooler; 19. Piston; 20. Water pump; 21. Connecting pipe 1; 22. Delivery pipe; 23. Circulating water pipe; 24. Connecting pipe 2. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1-Figure 2 The present invention provides an embodiment of an automotive die-casting mold frame with a high-precision mold closing and guiding structure, comprising a housing 1, a hydraulic rod 2 fixedly connected to the upper surface of the housing 1, a fixed plate 3 fixedly connected to the output end of the hydraulic rod 2, the hydraulic rod 2 providing power for the mold frame to close and open the mold, an upper mold 4 fixedly connected to the lower surface of the fixed plate 3, the upper mold 4 cooperating with the lower mold 5 to form a cavity for die-casting automotive parts. A lower mold 5 is fixedly connected to the interior of the housing 1, a guide rod 6 fixedly connected to the upper surface of the lower mold 5, and the fixed plate 3 is internally slidably connected to the side wall of the guide rod 6. A shock-absorbing assembly is provided on the side wall of the lower mold 5; a cooling assembly is provided on the side wall of the housing 1. The shock absorbing assembly includes a mounting plate 7, the lower surface of the mounting plate 7 is fixedly connected to the inside of the box body 1, a fixing sleeve 8 is fixedly connected to the inside of the mounting plate 7, a damper 9 is arranged inside the fixing sleeve 8, the damper 9 can absorb the impact force generated during mold closing, and reduce the influence of vibration on the mold frame and the mold, the upper surface of the damper 9 is fixedly connected to the pressing plate 10, the side wall of the fixing plate 3 is fixedly connected to the fixing block 11, the inner wall of the mounting plate 7 is fixedly connected to the fixing rod 12, one end of the fixing rod 12 is fixedly connected to the side wall of the fixing sleeve 8, the side wall of the fixing rod 12 is slidably connected to the sliding block 13, the side wall sleeve of the fixing rod 12 is provided with a spring 14, the side wall of the sliding block 13 is rotatably connected to the rotating bar 15, one end of the rotating bar 15 is rotatably connected to the lower surface of the pressing plate 10, one end of the spring 14 is fixedly connected to the side wall of the mounting plate 7, and the other end of the spring 14 is fixedly connected to the side wall of the sliding block 13;

[0034] When the device is in operation, the hydraulic rod 2 is first activated, pushing the upper fixed plate 3 downward with a steady and continuous force. Driven by this force, the fixed plate 3 slides along the sidewalls of the guide rod 6. During this process, the fixed plate 3 slowly moves the upper mold 4 toward the lower mold 5, gradually reducing the distance between them. When the fixed block 11 lightly contacts the pressure plate 10, the impact force generated by the instantaneous mold closing pushes the pressure plate 10 slowly downward. As the pressure plate 10 moves, the rotating bar 15 begins to rotate, pushing the sliding block 13 to slide on the fixed rod 12. During this process, the sliding block 13 compresses the spring 14. Meanwhile, the damper 9 hidden within the fixed sleeve 8 quickly absorbs the generated impact force. This series of synergistic actions significantly reduces the impact of vibration on the upper and lower molds 4 and 5, ensuring stable mold operation. After the mold is closed, molten metal is injected into the mold cavity. Under the powerful pressure, the liquid quickly fills the cavity. After a period of cooling, the molten metal gradually solidifies and takes shape. At this time, the hydraulic rod 2 starts again, slowly shrinks, and drives the upper mold 4 to move upward. As the upper mold 4 separates, the parts are then taken out, and the entire equipment is ready for the next orderly die-casting cycle.

[0035] Reference Figure 3-Figure 4The cooling component includes a water tank 17. The side wall of the water tank 17 is fixedly connected to the side wall of the box body 1. The side wall of the box body 1 is fixedly connected to a cooler 18. The cooler 18 is responsible for cooling the coolant returning from the mold so that it can be recycled again. A fan 16 is fixedly connected to the inside of the box body 1. The fan 16 assists the cooling process by accelerating the air flow to improve the cooling efficiency. A piston 19 is provided on the upper surface of the water tank 17. The piston 19 can be used to control the water inlet and outlet of the water tank 17, which is convenient for adjusting the addition and discharge of the coolant. A water pump 20 is fixedly connected to the upper surface of the water tank 17. The input end of the water pump 20 is fixedly connected to a connecting pipe 21, and one end of the connecting pipe 21 is fixedly connected to the inside of the water tank 17. Water pump 20 provides power for the circulation of the coolant, pumping the coolant from water tank 17 through connecting pipe 1 21. A delivery pipe 22 is fixedly connected to the output end of water pump 20, one end of which is fixedly connected to the interior of cooler 18. Delivery pipe 22 transports the coolant pumped by water pump 20 to cooler 18 for cooling. A circulating water pipe 23 is fixedly connected to the side wall of cooler 18, the side wall of which is fixedly connected to the interior of lower mold 5. A connecting pipe 24 is fixedly connected to the side wall of water tank 17, one end of which is fixedly connected to one end of circulating water pipe 23. Connecting pipe 24 transports the coolant returning from the mold back to water tank 17, forming a coolant circulation loop. Connecting pipe 24 is fixed between water tank 17 and circulating water pipe 23, ensuring that the coolant can smoothly return to water tank 17 and be ready for the next cycle.

[0036] During the cooling process, water pump 20 is first started. As water pump 20 starts, water from water tank 17 is slowly pumped out and transported through connected delivery pipe 22 into cooler 18. In cooler 18, the water temperature gradually decreases. The cooled water is then injected into circulating water pipe 23, which slowly flows through lower mold 5, absorbing the heat generated by lower mold 5. The heat-absorbed water is then transported back into water tank 17 through connecting pipe 24. This creates a continuous cycle, ensuring a continuous and stable cooling process. Simultaneously, fan 16 is activated, continuously blowing strong air onto the mold surface. This effectively physically cools the mold surface. With the help of fan 16, the cooling time is significantly shortened, significantly improving production efficiency and effectively reducing mold wear at high temperatures, thereby extending the mold's service life and providing a solid foundation for the stable operation of automotive die-casting mold frames.

[0037] Working principle: When using the equipment to work, first start the hydraulic rod 2 to push the fixed plate 3 down, slide on the side wall of the guide rod 6, and drive the upper mold 4 slowly close to the lower mold 5. When the fixed block 11 is in contact with the pressure plate 10, the impact force it generates pushes the pressure plate 10 down, causing the rotating bar 15 to rotate, pushing the sliding block 13 to slide, squeezing the spring 14, and then allowing the damper 9 to absorb the generated impact force, thereby reducing the vibration impact on the upper mold 4 and the lower mold 5. After the mold is closed, the molten metal liquid is injected into the mold cavity. Under the action of high pressure, the metal liquid fills the cavity. During the cooling process, the water inside the water tank 17 can be pumped out by starting the water pump 20 and then transported into the cooler 18 for cooling. The cooled water will then be injected into the circulating water pipe 23, so that it flows inside the lower mold 5, absorbing the heat generated by the lower mold 5, and then transported back to the water tank 17 through the connecting pipe 24 to achieve a circulation effect. Then the fan 16 is started to physically cool the mold surface, thereby accelerating the cooling time and extending the service life of the mold.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automobile die-casting mold frame with a high-precision mold guide structure, comprising a box (1), characterized in that: The upper surface of the box (1) is fixedly connected to a hydraulic rod (2), the output end of the hydraulic rod (2) is fixedly connected to a fixed plate (3), the lower surface of the fixed plate (3) is fixedly connected to an upper mold (4), the interior of the box (1) is fixedly connected to a lower mold (5), the upper surface of the lower mold (5) is fixedly connected to a guide rod (6), the interior of the fixed plate (3) is slidably connected to the side wall of the guide rod (6), and the side wall of the lower mold (5) is provided with a shock-absorbing component; the side wall of the box (1) is provided with a cooling component; The damping assembly comprises a mounting plate (7), the lower surface of the mounting plate (7) is fixedly connected to the inside of the box (1), a fixing sleeve (8) is fixedly connected to the inside of the mounting plate (7), a damper (9) is arranged inside the fixing sleeve (8), a pressure plate (10) is fixedly connected to the upper surface of the damper (9), a fixing block (11) is fixedly connected to the side wall of the fixing plate (3), a fixing rod (12) is fixedly connected to the inner wall of the mounting plate (7), one end of the fixing rod (12) is fixedly connected to the side wall of the fixing sleeve (8), a sliding block (13) is slidably connected to the side wall of the fixing rod (12), a spring (14) is provided on the side wall of the fixing rod (12), a rotating bar (15) is rotatably connected to the side wall of the sliding block (13), and one end of the rotating bar (15) is rotatably connected to the lower surface of the pressure plate (10).

2. The automotive die-casting mold frame with a high-precision mold clamping guide structure according to claim 1, characterized in that: The cooling assembly comprises a water tank (17), the side wall of the water tank (17) is fixedly connected to the side wall of the box body (1), the side wall of the box body (1) is fixedly connected to a cooler (18), and the inside of the box body (1) is fixedly connected to a fan (16).

3. The automotive die-casting mold frame with a high-precision mold clamping guide structure according to claim 1, characterized in that: One end of the spring (14) is fixedly connected to the side wall of the mounting plate (7), and the other end of the spring (14) is fixedly connected to the side wall of the sliding block (13).

4. The automotive die-casting mold frame with a high-precision mold clamping guide structure according to claim 2, characterized in that: A piston (19) is provided on the upper surface of the water tank (17), and a water pump (20) is fixedly connected to the upper surface of the water tank (17).

5. The automotive die-casting mold frame with a high-precision mold clamping guide structure according to claim 4, characterized in that: The input end of the water pump (20) is fixedly connected to a connecting pipe (21), and one end of the connecting pipe (21) is fixedly connected to the inside of the water tank (17).

6. The automotive die-casting mold frame with a high-precision mold clamping guide structure according to claim 5, characterized in that: The output end of the water pump (20) is fixedly connected to a delivery pipe (22), and one end of the delivery pipe (22) is fixedly connected to the inside of the cooler (18).

7. The automotive die-casting mold frame with a high-precision mold clamping guide structure according to claim 6, characterized in that: The side wall of the cooler (18) is fixedly connected to a circulating water pipe (23), and the side wall of the circulating water pipe (23) is fixedly connected to the inside of the lower mold (5).

8. The automotive die-casting mold frame with a high-precision mold clamping guide structure according to claim 7, characterized in that: The side wall of the water tank (17) is fixedly connected with a second connecting pipe (24), and one end of the second connecting pipe (24) is fixedly connected to one end of the circulating water pipe (23).

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