Die-casting die for automobile precision hardware

Abstract

The die-casting die for the automobile precision hardware comprises a bottom frame, a top shell is fixedly connected to the top end of the bottom frame, fixing mechanisms are installed on the two sides of the top end of the inner wall of the top shell, a fixed die is installed between the two fixing mechanisms, and a hydraulic cylinder is fixedly installed in the middle of the top end of the inner wall of the bottom frame. The top end of the hydraulic cylinder penetrates through the bottom frame to be fixedly connected with a cooling plate, the top end of the cooling plate is fixedly connected with a movable mold, a cooling mechanism is installed on the back face of the top shell, a snakelike cavity is formed in the cooling plate, the two sides of the front face of the cooling plate are fixedly connected with first cooling liquid connectors, and the two first cooling liquid connectors communicate with the two ends of the snakelike cavity correspondingly. According to the die-casting die for the automobile precision hardware, the air cooling mechanism is arranged, cooling of the surface of a die-casting formed workpiece can be accelerated, time consumption is reduced, the fixed die on the die-casting die for the automobile precision hardware is convenient to disassemble and assemble, operation is easy, and maintenance and replacement of the fixed die are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of die-casting mold technology, specifically a die-casting mold for precision automotive hardware parts. Background Technology

[0002] Precision automotive hardware refers to high-precision metal parts used in the automobile manufacturing process, typically in critical mechanical systems and components.

[0003] Precision automotive hardware parts can be produced by die casting, but existing die casting molds have the following drawbacks:

[0004] (1) Existing die casting molds cool the workpieces only through the built-in cooling pipes after injection molding precision automotive hardware parts, which is inefficient and the cooling process takes a long time.

[0005] (2) The fixed mold on the existing die casting mold lacks a quick disassembly and assembly structure, and the disassembly operation is relatively troublesome, which is not conducive to the maintenance and replacement of the fixed mold. Utility Model Content

[0006] The purpose of this utility model is to provide a die-casting mold for precision automotive hardware parts, in order to solve the problems mentioned in the background art, where existing die-casting molds, after injection molding precision automotive hardware parts, only cool the workpiece through the cooling pipes built into the mold, resulting in low efficiency and long cooling time. Furthermore, the fixed mold on the die-casting mold lacks a quick disassembly and assembly structure, making disassembly cumbersome and hindering the maintenance and replacement of the fixed mold.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a die-casting mold for precision automotive hardware parts, comprising a base frame, a top shell fixedly connected to the top of the base frame, fixing mechanisms installed on both sides of the top of the inner wall of the top shell, a fixed mold installed between the two fixing mechanisms, a hydraulic cylinder fixedly installed in the middle of the top of the inner wall of the base frame, a cooling plate fixedly connected to the top of the hydraulic cylinder through the base frame, a moving mold fixedly connected to the top of the cooling plate, a cooling mechanism installed on the back of the top shell, a serpentine cavity opened inside the cooling plate, and coolant inlets fixedly connected to both sides of the front of the cooling plate, with the two coolant inlets respectively communicating with the two ends of the serpentine cavity.

[0008] When using a die-casting mold for precision automotive hardware parts according to this technical solution, an air-cooling cooling mechanism is provided, which can accelerate the cooling of the surface of the die-cast workpiece, reduce the time consumption, and the fixed mold on the die-casting mold for precision automotive hardware parts is easy to disassemble and assemble, simple to operate, and conducive to its maintenance and replacement.

[0009] As a preferred embodiment of this invention, the cooling mechanism includes a back box, two fans, an air outlet, a serpentine tube, and an insulation layer. The back box is fixedly connected to the back of the top shell, the air outlet is fixedly connected to the inner wall of the top shell, and the air outlet communicates with the interior of the back box. A serpentine tube is installed inside the back box, and fans are fixedly installed on both sides of the back of the back box. An insulation layer is fixedly connected to the inner wall of the back box. The insulation layer reduces the loss of cold air inside the back box.

[0010] In a preferred embodiment of this invention, a filter screen is fitted at the input end of the fan, the output end of the fan is connected to the interior of the back box, and coolant inlets are fixedly connected to both sides of the back box. The two ends of the serpentine tube are respectively fixedly connected to the two coolant inlets. The filter screen can filter dust and impurities from the air.

[0011] In a preferred embodiment of this invention, the fixing mechanism includes a mounting base, two springs, a displacement plate, several locking rods, an electromagnet, and a nickel sheet. The mounting base is fixedly connected to one side of the top of the inner wall of the top shell. Springs are fixedly connected to both ends of one side of the inner wall of the mounting base. One end of each of the two springs is fixedly connected to a displacement plate. Several locking rods are fixedly connected to the surface of the displacement plate. An electromagnet is fixedly embedded in the middle of one side of the inner wall of the mounting base. A nickel sheet is fixedly embedded in the middle of the displacement plate. Several locking slots are provided on both sides of the fixed mold. The electromagnet can overcome the spring force to attract the nickel sheet.

[0012] In a preferred embodiment of this invention, one end of each of the locking rods is inserted into the inner wall of one of the locking slots, and the displacement plate is slidably connected to the interior of the mounting base. This allows the locking rods inserted into the locking slots to fix the position of the mold.

[0013] In a preferred embodiment of this invention, a gate is fixedly connected to the middle of the top of the top shell, and the bottom end of the gate communicates with the interior of the fixed mold. The gate is used to inject high-temperature liquid metal.

[0014] In a preferred embodiment of this invention, guide rods are fixedly connected to both ends of the top sides of the base frame, and guide blocks are fixedly connected to both ends of both sides of the moving mold, with the guide blocks slidably connected to the surface of the guide rods. The guide blocks and guide rods prevent the moving mold from shifting during lifting and lowering.

[0015] In a preferred embodiment of this invention, a limiting block is fixedly connected to the top end of the guide rod. The limiting block limits the upward movement of the moving mold.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Coolant is delivered to the serpentine cavity of the cooling plate through pipelines, which can cool the workpiece in the die-casting mold. After mold separation, coolant is also delivered to the serpentine tube of the cooling mechanism through pipelines to cool the air inside the back box. Then, the fan blows the cold air from the air outlet to the surface of the workpiece, thereby accelerating the cooling of the surface of the die-cast automotive precision hardware parts, reducing time consumption and improving work efficiency.

[0018] 2. By activating the electromagnets in the fixing mechanisms on both sides of the fixed mold, the displacement plates with nickel plates are attracted and moved, causing several locking rods to return to the mounting base, thereby releasing the fixation of the fixed mold for replacement. After completion, the electromagnets on both sides are turned off, and the locking rods will spring back under the action of the springs and lock into the locking grooves on both sides of the fixed mold, completing the fixation. Thus, the fixed mold on the automotive precision hardware die-casting mold is easy to disassemble and assemble, simple to operate, and conducive to its maintenance and replacement. Attached Figure Description

[0019] Figure 1 This is a front perspective view of the present invention;

[0020] Figure 2 This is a front view of the present invention;

[0021] Figure 3 This is a rear perspective view of the present invention;

[0022] Figure 4 This is a side cross-sectional view of the cooling mechanism of this utility model;

[0023] Figure 5 This is a top cross-sectional view of the cooling plate of this utility model;

[0024] Figure 6 This is a top cross-sectional view of the fixing mechanism of this utility model.

[0025] In the diagram: 1. Base frame; 2. Top shell; 3. Hydraulic cylinder; 4. Cooling plate; 5. Moving mold; 6. Fixed mold; 7. Gate; 8. Guide rod; 9. Guide block; 10. Limiting block; 11. Serpentine cavity; 12. Coolant interface one; 13. Cooling mechanism; 131. Back box; 132. Fan; 133. Air outlet; 134. Serpentine tube; 135. Insulation layer; 14. Filter screen; 15. Coolant interface two; 16. Fixing mechanism; 161. Mounting base; 162. Spring; 163. Displacement plate; 164. Locking rod; 165. Electromagnet; 166. Nickel sheet; 17. Locking groove. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-6 This utility model provides a die-casting mold for precision automotive hardware parts, including a base frame 1, a top shell 2 fixedly connected to the top of the base frame 1, fixing mechanisms 16 installed on both sides of the top of the inner wall of the top shell 2, a fixed mold 6 installed between the two fixing mechanisms 16, a hydraulic cylinder 3 fixedly installed in the middle of the top of the inner wall of the base frame 1, a cooling plate 4 fixedly connected to the top of the hydraulic cylinder 3 through the base frame 1, which can drive lifting and lowering, a moving mold 5 fixedly connected to the top of the cooling plate 4, the mold cavity after mold closing is used for forming the workpiece, a cooling mechanism 13 installed on the back of the top shell 2, a serpentine cavity 11 opened inside the cooling plate 4 to increase the flow area of ​​the coolant, coolant inlets 12 fixedly connected to both sides of the front of the cooling plate 4, and the two coolant inlets 12 are respectively connected to the two ends of the serpentine cavity 11 for circulating coolant for cooling.

[0028] In use, the hydraulic cylinder 3 is activated to push the moving mold 5 upward to close with the fixed mold 6. Then, liquid metal is injected into the mold to fill the mold cavity and maintain high pressure until the metal cools and solidifies. Two coolant inlets 12 are used for coolant input and output, respectively. The coolant is transported through pipelines to the serpentine cavity 11 of the cooling plate 4, which can cool the workpiece in the die-casting mold and accelerate the solidification process.

[0029] The cooling mechanism 13 includes a back box 131, two fans 132, an air outlet 133, a serpentine tube 134, and an insulation layer 135. The back box 131 is fixedly connected to the back of the top shell 2. The air outlet 133 is fixedly connected to the inner wall of the top shell 2 and communicates with the interior of the back box 131. The serpentine tube 134 is installed inside the back box 131. Fans 132 are fixedly installed on both sides of the back of the back box 131. The insulation layer 135 is fixedly connected to the inner wall of the back box 131 to provide insulation. A filter screen 14 is engaged at the input end of the fan 132 to filter dust. The output end of the fan 132 communicates with the interior of the back box 131. Coolant inlets 15 are fixedly connected to both sides of the back box 131. The two ends of the serpentine tube 134 are fixedly connected to the two coolant inlets 15 for inputting and outputting condensate.

[0030] During use, while the workpiece is cooling, coolant is simultaneously delivered through pipelines to the serpentine tube 134 of the cooling mechanism 13 to cool the air inside the back box 131. Then, the fan 132 blows the cold air from the air outlet 133 to the surface of the workpiece, thereby accelerating the cooling of the surface of the die-cast automotive precision hardware parts, reducing time consumption, and improving work efficiency. The filter 14 can filter dust and impurities in the air to prevent them from being blown to the surface of the workpiece. The two coolant inlets 15 are used for circulating coolant input.

[0031] The fixing mechanism 16 includes a mounting base 161, two springs 162, a displacement plate 163, several locking rods 164, an electromagnet 165, and a nickel sheet 166. The mounting base 161 is fixedly connected to one side of the top of the inner wall of the top shell 2. Springs 162 are fixedly connected to both ends of one side of the inner wall of the mounting base 161. One end of the two springs 162 is fixedly connected to the displacement plate 163. Several locking rods 164 are fixedly connected to the surface of the displacement plate 163. An electromagnet 165 is fixedly embedded in the middle of one side of the inner wall of the mounting base 161. A nickel sheet 166 is fixedly embedded in the middle of the displacement plate 163. Several locking grooves 17 are opened on both sides of the fixed mold 6. One end of each locking rod 164 is inserted into the inner wall of the locking groove 17 to lock. The displacement plate 163 is slidably connected to the inside of the mounting base 161.

[0032] In use, by activating the electromagnets 165 in the fixing mechanisms on both sides of the fixed mold 6, the displacement plate 163 with nickel sheet 166 is attracted and moved, which drives several locking rods 164 back into the mounting base 161, thereby releasing the fixation of the fixed mold 6 so that it can be replaced. After completion, the electromagnets 165 on both sides are turned off, and the several locking rods 164 will spring back under the action of spring 162 and lock into the locking grooves 17 on both sides of the fixed mold 6 to complete the fixation.

[0033] A gate 7 is fixedly connected to the middle of the top of the top shell 2 for inputting molten metal, and the bottom end of the gate 7 is connected to the interior of the fixed mold 6. Guide rods 8 are fixedly connected to both ends of the top of the base frame 1, and guide blocks 9 are fixedly connected to both ends of the moving mold 5. The guide blocks 9 are slidably connected to the surface of the guide rods 8 to play a guiding role. A limit block 10 is fixedly connected to the top of the guide rods 8 to play a limiting role.

[0034] During use, the guide rod 8 and guide block 9 prevent the moving mold 5 from shifting during the lifting process, and the limit block 10 limits the rising distance of the moving mold 5 to prevent it from falling off. The gate 7 is used to input high-temperature liquid metal into the die-casting mold.

[0035] In practical use, this utility model of a die-casting mold for precision automotive hardware parts involves activating a hydraulic cylinder 3 to move the moving mold 5 upwards, closing it with the fixed mold 6. Liquid metal is then injected into the mold through the gate 7, filling the mold cavity. High pressure is maintained until the metal cools and solidifies. Coolant is then piped to the serpentine cavity 11 of the cooling plate 4, cooling the workpiece within the die-casting mold. After mold separation, coolant is simultaneously piped to the serpentine tube 134 of the cooling mechanism 13 to cool the air inside the back box 131. The fan 132 then blows the cold air from the air outlet 133 to the surface of the workpiece. This accelerates the cooling of the surface of the die-cast automotive precision hardware parts, reduces time consumption, and improves work efficiency. By activating the electromagnets 165 in the fixing mechanism on both sides of the fixed mold 6, the displacement plate 163 with nickel sheet 166 is attracted and moved, driving several locking rods 164 back into the mounting base 161, thereby releasing the fixation of the fixed mold 6 for replacement. After completion, the electromagnets 165 on both sides are closed, and the several locking rods 164 will rebound under the action of spring 162 and lock into the locking grooves 17 on both sides of the fixed mold 6 to complete the fixation. Thus, the fixed mold 6 on the die-casting mold of automotive precision hardware parts is easy to disassemble and assemble, simple to operate, and conducive to its maintenance and replacement.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A die-casting mold for precision automotive hardware parts, comprising a base frame (1), characterized in that: The top of the base frame (1) is fixedly connected to the top shell (2). Fixing mechanisms (16) are installed on both sides of the top of the inner wall of the top shell (2). A fixed mold (6) is installed between the two fixing mechanisms (16). A hydraulic cylinder (3) is fixedly installed in the middle of the top of the inner wall of the base frame (1). A cooling plate (4) is fixedly connected to the top of the hydraulic cylinder (3) through the base frame (1). A moving mold (5) is fixedly connected to the top of the cooling plate (4). A cooling mechanism (13) is installed on the back of the top shell (2). A serpentine cavity (11) is opened inside the cooling plate (4). Cooling liquid inlets (12) are fixedly connected to both sides of the front of the cooling plate (4). The two cooling liquid inlets (12) are respectively connected to the two ends of the serpentine cavity (11).

2. The die-casting mold for precision automotive hardware parts according to claim 1, characterized in that: The cooling mechanism (13) includes a back box (131), two fans (132), an air outlet (133), a serpentine tube (134), and an insulation layer (135). The back box (131) is fixedly connected to the back of the top shell (2). The air outlet (133) is fixedly connected to the inner wall of the top shell (2) and communicates with the interior of the back box (131). A serpentine tube (134) is installed inside the back box (131). Fans (132) are fixedly installed on both sides of the back of the back box (131). An insulation layer (135) is fixedly connected to the inner wall of the back box (131).

3. The die-casting mold for precision automotive hardware parts according to claim 2, characterized in that: The input end of the fan (132) is fitted with a filter screen (14), the output end of the fan (132) is connected to the interior of the back box (131), both sides of the back box (131) are fixedly connected to the coolant interface two (15), and both ends of the serpentine tube (134) are fixedly connected to the two coolant interfaces two (15) respectively.

4. The die-casting mold for precision automotive hardware parts according to claim 1, characterized in that: The fixing mechanism (16) includes a mounting base (161), two springs (162), a displacement plate (163), several locking rods (164), an electromagnet (165), and a nickel sheet (166). The mounting base (161) is fixedly connected to one side of the top of the inner wall of the top shell (2). Both ends of one side of the inner wall of the mounting base (161) are fixedly connected to springs (162). One end of the two springs (162) is fixedly connected to the displacement plate (163). Several locking rods (164) are fixedly connected to the surface of the displacement plate (163). An electromagnet (165) is fixedly embedded in the middle of one side of the inner wall of the mounting base (161). A nickel sheet (166) is fixedly embedded in the middle of the displacement plate (163). Several locking grooves (17) are opened on both sides of the fixed mold (6).

5. A die-casting mold for precision automotive hardware parts according to claim 4, characterized in that: One end of each of the locking rods (164) is inserted into the inner wall of one of the locking slots (17), and the displacement plate (163) is slidably connected to the inside of the mounting base (161).

6. The die-casting mold for precision automotive hardware parts according to claim 1, characterized in that: A gate (7) is fixedly connected to the middle of the top of the top shell (2), and the bottom end of the gate (7) is connected to the interior of the fixed mold (6).

7. The die-casting mold for precision automotive hardware parts according to claim 1, characterized in that: Guide rods (8) are fixedly connected to both ends of the top of the base frame (1), and guide blocks (9) are fixedly connected to both ends of both sides of the moving mold (5), and the guide blocks (9) are slidably connected to the surface of the guide rods (8).

8. A die-casting mold for precision automotive hardware parts according to claim 7, characterized in that: The top end of the guide rod (8) is fixedly connected to a limiting block (10).

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