Oil pan die-casting die

Abstract

The utility model discloses an oil pan die-casting die which comprises a base and a connecting mechanism arranged on the base, and the connecting mechanism comprises a movable body assembly, a fixed body assembly and an injection assembly. The movable body assembly comprises a hydraulic machine, a movable mold, a mold cavity and a cooling water pipe, the fixed body assembly comprises a fixed mold, a mold, a longitudinal pouring gate, a transverse pouring gate and an inner pouring gate, and the injection assembly comprises an inclined vacuum exhaust pipe, an injection hopper and a piston; the cooling water pipe and the circulating water pipe are externally connected with cooling water to cool molten aluminum in the cavity and the mold, so that solidification and forming of the molten aluminum are accelerated; an external vacuum air extractor is used for extracting air in the cavity and the mold, air holes are prevented from being generated in the solidification process of molten aluminum, it is guaranteed that the compactness of the oil pan reaches the standard, the molten aluminum can be filled into the whole cavity and the mold in an extremely short time through the longitudinal pouring gate, the transverse pouring gate and the inner pouring gate, the molten aluminum is prevented from being condensed in the flowing process, manufacturing is efficient and rapid, and the production efficiency is improved. And the oil pan mold can be taken out by pushing the top frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil sump processing technical field, concretely is a kind of oil sump die casting die. BACKGROUND

[0002] The main function of oil sump is to store oil, to prevent impurities from entering the engine, and to collect and store the lubricating oil flowing back from the friction surface of each component of the engine, to dissipate part of the heat, to prevent the oxidation of lubricating oil, so the oil sump is an important part of the engine. The oil sump is integrated with several oil channels, and the oil channels cannot be connected. At the same time, in order to prevent the oil in the oil sump from leaking outwards, the product also needs to be tested for tightness, and the product density X-ray detection meets the Level 2 standard of ASTME505. Due to the complex structure of the product, the wall thickness is uneven, and there is a higher requirement for air tightness test, in order to improve the qualified rate of the product, a reliable die casting die and a standard die casting production debugging process need to be designed.

[0003] For example, application No. CN204486742U discloses an oil sump frame die casting die, which comprises a lower die frame, a lower plate, a die core, a gas cylinder and a shaft rod. The die core, the lower die plate and the lower die frame are sequentially connected in the middle from top to bottom. A guide hole is formed between the lower die plate and the lower die frame, which is inclined from the side surface of the lower die frame to the top surface of the lower die plate. The side surface of the die core comprises a positioning hole coaxial with the guide hole. The gas cylinder is obliquely installed on the side surface of the lower die frame, and the push rod is coaxial with the guide hole. The push rod and the shaft rod are coaxially connected and are slidably inserted into the guide hole. The shaft rod is inserted into the positioning hole by the push rod. The oil sump frame die casting die can effectively prevent the shaft rod from deforming due to hard collision with the die core.

[0004] However, the oil sump frame die casting die cannot extract the gas in the die casting die cavity, which makes the aluminum liquid in the cavity easily produce bubbles, and further makes the die casting produce pores, which reduces the compactness of the die casting. At the same time, the mold temperature cannot be balanced during the die casting process, the product cooling rate is too slow, and the condensation efficiency is low, which does not meet the needs of the people. Therefore, an oil sump die casting die is needed. UTILITY MODEL CONTENTS

[0005] To solve the defects that the existing technology cannot extract the gas in the mold, is easy to produce bubbles and reduces the compactness of the casting, and the die casting cooling efficiency is low, the utility model provides an oil sump die casting die.

[0006] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model discloses an oil sump die casting die, which comprises a base and a connecting mechanism arranged on the base, the connecting mechanism comprises a moving body assembly, a fixed body assembly and an injection assembly;

[0008] The moving body assembly includes a motor fixing frame, a hydraulic machine, a moving die, a cavity, a cooling water pipe, a limiting groove and a sliding groove, the top of the base is welded with the motor fixing frame, the upper side of the motor fixing frame is installed with the hydraulic machine, the output end of the hydraulic machine is fixedly installed with the moving die, the end face of the moving die away from the hydraulic machine is provided with the cavity, and the inside of the moving die is embedded with the cooling water pipe, the periphery of the cavity is provided with three groups of limiting grooves, and the end of the motor fixing frame close to the moving die is fixedly installed with the sliding groove, and the moving die is limited to slide in the inside of the sliding groove.

[0009] The fixed body assembly includes a fixed die, a mold, a positioning rod, an upper vacuum air pipe, a side vacuum air pipe, a sealing ring, a vertical gate, a horizontal gate and an inner gate, one side of the moving die away from the hydraulic machine is provided with the fixed die, the inside of the fixed die is provided with the mold, and the fixed die is welded on the base, three groups of the positioning rods are fixedly installed around the mold, the upper vacuum air pipe and the side vacuum air pipe are provided through the inside of the fixed die, the upper vacuum air pipe is located directly above the mold, the side vacuum air pipe is located on the left side of the mold, the end face of the fixed die close to the mold is welded with the sealing ring, six groups of the vertical gates are provided below the mold, the horizontal gate is provided below the six groups of the vertical gates, and the end of the horizontal gate away from the vertical gate is connected with the inner gate.

[0010] The injection assembly includes a pressing pipe, an inclined vacuum air pipe, an injection pipeline, an injection bucket, a cylinder, a top rod and a piston, the end face of the fixed die away from the mold is welded with the pressing pipe, the top of the pressing pipe is provided through with the inclined vacuum air pipe and the injection pipeline, and the pressing pipe is sealingly and fixedly connected with the inner gate, the top of the injection pipeline is sealingly and fixedly connected with the injection bucket, the end of the pressing pipe away from the fixed die is provided with the cylinder, the top rod welded on the output end of the cylinder is installed with the piston, and the outer diameter of the piston is completely same with the inner diameter of the pressing pipe.

[0011] As a preferred technical scheme of the utility model, the end face of the moving die close to the cavity is welded with a sealing strip, the sealing strip is located at the circumference of the moving die, and a sealing groove is arranged on the moving die close to the inside of the sealing strip.

[0012] As a preferred technical scheme of the utility model, the end face of the fixed die away from the mold is provided with a top plate, the end face of the top plate close to the fixed die is welded with a top frame, and the top frame penetrates the fixed die to the end face of the mold.

[0013] As a preferred technical scheme of the utility model, the three groups of the limiting grooves and the positioning rods are one-to-one corresponding.

[0014] As a preferred technical scheme of the utility model, the sealing ring and the sealing groove are symmetrically arranged, and the sealing ring and the sealing groove can be connected in cooperation.

[0015] As a preferred technical scheme of the utility model, the inside of the fixed mold is embedded with a circulating water pipe, and the cooling water pipe and the circulating water pipe are both externally connected with a water pipe.

[0016] The utility model has the following beneficial effects:

[0017] Through the setting of the cooling water pipe, the upper vacuum air pipe, the side vacuum air pipe, the inclined vacuum air pipe and the circulating water pipe, the cooling water pipe inside the movable mold and the circulating water pipe inside the fixed mold are filled with external cooling water at the same time, the cooling water carries out the cooling treatment to the aluminum liquid inside the cavity and the mold, accelerates the solidification of the aluminum liquid, the cooling of the cavity and the mold by the cooling water can also prolong the service life of the movable mold and the fixed mold; the external vacuum air extractor carries out the separation of the air inside the cavity and the mold through the upper vacuum air pipe, the side vacuum air pipe and the inclined vacuum air pipe, facilitates the subsequent entry of the aluminum liquid, avoids the generation of air holes in the solidification process of the aluminum liquid, and guarantees the compactness of the oil sump to reach the standard;

[0018] Through the setting of the vertical gate, the horizontal gate, the inner gate and the top frame, the aluminum liquid inside the pressing pipe is pushed to the inside of the inner gate by the piston, then flows to the horizontal gate, and then is injected to the inside of the cavity and the mold through the vertical gate for filling. The aluminum liquid can be filled to the whole cavity and mold in a very short time through the vertical gate, the horizontal gate and the inner gate, avoiding condensation of the aluminum liquid in the flowing process and affecting the quality, efficiently and quickly producing, greatly saving time cost; the staff pushes the top plate, and then drives the top frame to eject to the inside of the mold, pushes the oil sump mold, and then pushes the oil sump mold away from the mold, and the oil sump mold can be taken out. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the oil sump die casting mold of the utility model;

[0022] Figure 2 It is a half cut structure schematic view of the movable assembly of the oil sump die casting mold of the utility model;

[0023] Figure 3 It is a half cut structure schematic view of the fixed assembly of the oil sump die casting mold of the utility model;

[0024] Figure 4 It is a rear view structure schematic view of the fixed assembly of the oil sump die casting mold of the utility model;

[0025] Figure 5 It is a half cut structure schematic view of the injection assembly of the oil sump die casting mold of the utility model.

[0026] In the diagram: 1. Base; 2. Motor mounting bracket; 3. Hydraulic press; 4. Moving mold; 5. Cavity; 6. Cooling water pipe; 7. Limiting groove; 8. Slide groove; 9. Fixed mold; 10. Mold; 11. Positioning rod; 12. Upper vacuum extraction pipe; 13. Side vacuum extraction pipe; 14. Sealing ring; 15. Longitudinal runner; 16. Horizontal runner; 17. Inner runner; 18. Pressure pipe; 19. Inclined vacuum extraction pipe; 20. Injection pipe; 21. Injection hopper; 22. Cylinder; 23. Ejector rod; 24. Piston; 25. Sealing strip; 26. Sealing groove; 27. Top plate; 28. Top frame; 29. ​​Circulating water pipe. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example 1: As Figures 1-5 As shown, the present invention proposes an oil pan die casting mold, which includes a base 1 and a connecting mechanism disposed on the base 1. The connecting mechanism includes a moving body component, a stationary body component and an injection component.

[0029] The moving body assembly includes a motor mounting bracket 2, a hydraulic press 3, a moving mold 4, a cavity 5, a cooling water pipe 6, a limiting groove 7, and a slide 8. The motor mounting bracket 2 is welded to the top of the base 1. The hydraulic press 3 is mounted above the motor mounting bracket 2. The moving mold 4 is fixedly mounted on the output end of the hydraulic press 3. A cavity 5 is formed on the end face of the moving mold 4 away from the hydraulic press 3, and a cooling water pipe 6 is embedded inside the moving mold 4. Three sets of limiting grooves 7 are formed around the cavity 5. A slide 8 is fixedly mounted on the end of the motor mounting bracket 2 closest to the moving mold 4. The moving mold 4 is limited within the slide 8. The sliding mechanism, during operation, is equipped with a hydraulic press 3, a moving mold 4, a cooling water pipe 6, a limiting groove 7, and a sliding groove 8. The hydraulic press 3 can drive the moving mold 4 to move back and forth, facilitating the processing or removal of the mold. The cooling water pipe 6 provides external cooling water, which can cool the molten aluminum inside the cavity 5 of the moving mold 4 and accelerate the solidification of the molten aluminum. The limiting groove 7 can cooperate with the positioning rod 11 on the fixed mold 9 for positioning, avoiding shaking during the subsequent die casting process. The sliding groove 8 facilitates the back and forth movement of the moving mold 4 during the processing, achieving stable processing control.

[0030] The fixed die assembly comprises a fixed die 9, a mold 10, three positioning rods 11, an upper vacuum exhaust pipe 12, a side vacuum exhaust pipe 13, a sealing ring 14, longitudinal runners 15, a cross runner 16 and an inner runner 17, the movable die 4 is provided with the fixed die 9 away from the hydraulic machine 3, the inside of the fixed die 9 is provided with the mold 10, and the fixed die 9 is welded on the base 1, three groups of positioning rods 11 are fixedly installed around the mold 10, the inside of the fixed die 9 is provided with the upper vacuum exhaust pipe 12 and the side vacuum exhaust pipe 13, the upper vacuum exhaust pipe 12 is located directly above the mold 10, the side vacuum exhaust pipe 13 is located on the left side of the mold 10, the end face of the fixed die 9 close to the mold 10 is welded with the sealing ring 14, six groups of longitudinal runners 15 are arranged below the mold 10, the cross runner 16 is arranged below the six groups of longitudinal runners 15, and the end, away from the longitudinal runner 15, of the cross runner 16 is connected with the inner runner 17; in working, the vacuum exhaust machine is connected with the upper vacuum exhaust pipe 12, the side vacuum exhaust pipe 13 and the inclined vacuum exhaust pipe 19 to exhaust the air in the mold cavity 5 and the mold 10, so that the molten aluminum can enter the mold cavity 5 and the mold 10, air holes are avoided in the solidification process of the molten aluminum, the compactness of the oil sump can reach the standard, the molten aluminum firstly enters the inner runner 17, then flows to the cross runner 16, and then flows to the mold cavity 5 and the mold 10 through the longitudinal runners 15, so that the molten aluminum can be filled in the mold cavity 5 and the mold 10 in a very short time through the longitudinal runners 15, the cross runner 16 and the inner runner 17, air holes are avoided in the flowing process of the molten aluminum, the quality is affected, the oil sump is efficiently and quickly made, and the time cost is greatly saved.

[0031] Further, the end face of the movable die 4 close to the mold cavity 5 is welded with a sealing strip 25, the sealing strip 25 is located at the circumferential length of the movable die 4, and a sealing groove 26 is arranged at the movable die 4 close to the inner side of the sealing strip 25; in working, the sealing groove 26 is connected with the sealing ring 14 on the fixed die 9 in a sealing mode, and the movable die 4 and the fixed die 9 are sealed and isolated by the sealing strip 25, so that the air can be easily exhausted.

[0032] Further, the end face of the fixed die 9 away from the mold 10 is provided with a top plate 27, the end face of the top plate 27 close to the fixed die 9 is welded with a top frame 28, and the top frame 28 penetrates the fixed die 9 to the end face of the mold 10; in working, the top plate 27 is pushed by the worker, and then the top frame 28 is pushed to the inside of the mold 10, so that the oil sump mold is pushed away from the mold 10, and then the oil sump mold is taken out.

[0033] Further, the three groups of limiting grooves 7 and the positioning rods 11 are one-to-one corresponding; in working, the positioning rods 11 on the fixed die 9 are embedded into the limiting grooves 7 arranged on the movable die 4 for positioning, so that the shaking in the subsequent die casting process is avoided, and the stability is reliable.

[0034] Furthermore, the sealing ring 14 and the sealing groove 26 are symmetrically arranged, and the sealing ring 14 and the sealing groove 26 can be connected together. During operation, the sealing groove 26 can be connected with the sealing ring 14 on the fixed mold 9 to seal and isolate the air, which facilitates the subsequent extraction of air.

[0035] Furthermore, a circulating water pipe 29 is embedded inside the fixed mold 9. Both the cooling water pipe 6 and the circulating water pipe 29 are connected to external water pipes. During operation, by setting up the cooling water pipe 6 and the circulating water pipe 29, external cooling water is simultaneously poured into the cooling water pipe 6 inside the moving mold 4 and the circulating water pipe 29 inside the fixed mold 9. The cooling water cools down the aluminum liquid inside the cavity 5 and the mold 10, accelerating the solidification and molding of the aluminum liquid. The cooling water also extends the service life of the moving mold 4 and the fixed mold 9.

[0036] Example 2: As Figures 1-5 As shown, the oil pan die-casting mold proposed in this utility model, compared with Embodiment 1, is another embodiment of this utility model. The injection assembly includes a pressure pipe 18, an inclined vacuum extraction pipe 19, an injection pipe 20, an injection hopper 21, a cylinder 22, a push rod 23, and a piston 24. The pressure pipe 18 is welded to the end face of the fixed mold 9 away from the mold 10. The inclined vacuum extraction pipe 19 and the injection pipe 20 are connected through the top of the pressure pipe 18, and the pressure pipe 18 is sealed and fixedly connected to the inner sprue 17. The injection hopper 21 is sealed and fixedly connected to the top of the injection pipe 20. A cylinder 22 is provided at the end of the pressure pipe 18 away from the fixed mold 9. A piston 24 is installed on the push rod 23 welded to the output end of the cylinder 22. The outer diameter of the piston 24 is the same as that of the pressure pipe. The inner diameters of the molds 18 are identical. During operation, an external vacuum pump removes air from the cavity 5 and mold 10 via the upper vacuum pump pipe 12, the side vacuum pump pipe 13, and the inclined vacuum pump pipe 19. This facilitates the subsequent entry of molten aluminum, prevents pores from forming during the solidification process, and ensures the oil pan's tightness meets standards. Once the air level inside the cavity 5 and mold 10 is reduced to a specific value, the external vacuum pump stops working. Molten aluminum is then injected into the injection hopper 21. The molten aluminum flows through the injection pipe 20 into the pressure pipe 18. Next, the cylinder 22 starts working, driving the piston 24 via the push rod 23 to push it towards the ingate 17. The molten aluminum inside the pressure pipe 18 is pushed into the ingate 17 by the piston 24. The molten aluminum first enters the ingate 17, then flows to the transverse runner 16, and finally enters the cavity 5 and mold 10 through the longitudinal runner 15 for filling. Cylinder 22 stops pushing, ensuring constant pressure inside cavity 5 and mold 10, and accelerating the filling of aluminum liquid into every corner inside cavity 5 and mold 10.

[0037] In operation, first, the hydraulic machine 3 drives the movable mold 4 to move towards the fixed mold 9 until the sealing ring 14 is embedded in the inside of the sealing groove 26, and the hydraulic machine 3 stops working, at the same time, the positioning rod 11 on the fixed mold 9 is embedded in the limiting groove 7 on the movable mold 4 to position, avoiding shaking in the subsequent die casting process, stable and reliable; the sealing strip 25 seals and isolates between the movable mold 4 and the fixed mold 9, facilitating subsequent air extraction.

[0038] Then, the external vacuum air extractor extracts the air in the cavity 5 and the mold 10 through the upper vacuum air pipe 12, the side vacuum air pipe 13 and the inclined vacuum air pipe 19, facilitating the subsequent entry of the aluminum liquid, avoiding the generation of pores in the solidification process of the aluminum liquid, and ensuring the compactness of the oil pan to reach the standard, when the air in the cavity 5 and the mold 10 is extracted to a certain value, the external vacuum air extractor stops working, and then the aluminum liquid is injected into the injection bucket 21, the aluminum liquid flows into the inside of the pressing pipe 18 through the injection pipeline 20, then the air cylinder 22 starts to work, the air cylinder 22 drives the piston 24 to push the inner gate 17 through the top rod 23, and the aluminum liquid in the pressing pipe 18 is pushed into the inner gate 17 by the piston 24. The aluminum liquid first enters the inside of the inner gate 17, then flows to the cross gate 16, and then is injected into the inside of the cavity 5 and the mold 10 through the vertical gate 15 to fill. The air cylinder 22 stops pushing to ensure the constant pressure in the cavity 5 and the mold 10, and accelerate the filling of the aluminum liquid in each corner of the cavity 5 and the mold 10, at the same time, the cooling water pipe 6 in the movable mold 4 and the circulating water pipe 29 in the fixed mold 9 are filled with external cooling water at the same time, the cooling water cools the aluminum liquid in the cavity 5 and the mold 10, accelerates the solidification of the aluminum liquid, and the cooling of the cavity 5 and the mold 10 by the cooling water can also prolong the service life of the movable mold 4 and the fixed mold 9.

[0039] Finally, after a certain period of time, the aluminum liquid solidifies into an oil pan in the cavity 5 and the mold 10, the air cylinder 22 starts to work to drive the piston 24 to retract, the external vacuum air extractor releases the pressure, the pressure in the cavity 5 and the mold 10 is the same as the outside, then the hydraulic machine 3 drives the movable mold 4 to separate from the fixed mold 9, the staff pushes the top plate 27 to drive the top frame 28 to push out to the inside of the mold 10, and the oil pan mold is pushed, so that the oil pan mold is pushed away from the mold 10, and the oil pan mold can be taken out.

[0040] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An oil sump die-casting mould comprising a base (1) and a connecting mechanism arranged on the base (1), characterized in that: The connecting mechanism comprises a moving body assembly, a fixed body assembly and an injection assembly; The moving body assembly comprises a motor fixing frame (2), a hydraulic machine (3), a moving mold (4), a cavity (5), a cooling water pipe (6), a limiting groove (7) and a sliding groove (8), the top of the base (1) is welded with the motor fixing frame (2), the upper portion of the motor fixing frame (2) is installed with the hydraulic machine (3), the output end of the hydraulic machine (3) is fixedly installed with the moving mold (4), the end face of the moving mold (4) away from the hydraulic machine (3) is provided with the cavity (5), and the inside of the moving mold (4) is embedded with the cooling water pipe (6), three groups of limiting grooves (7) are arranged around the cavity (5), and the end of the motor fixing frame (2) close to the moving mold (4) is fixedly installed with the sliding groove (8), and the moving mold (4) is limitedly slid in the sliding groove (8). The fixed body assembly comprises a fixed mold (9), a mold (10), a positioning rod (11), an upper vacuum air pipe (12), a side vacuum air pipe (13), a sealing ring (14), a vertical runner (15), a horizontal runner (16) and an inner runner (17), one side of the moving mold (4) away from the hydraulic machine (3) is provided with the fixed mold (9), the inside of the fixed mold (9) is provided with the mold (10), and the fixed mold (9) is welded on the base (1), three groups of the positioning rods (11) are fixedly installed around the mold (10), the upper vacuum air pipe (12) and the side vacuum air pipe (13) are arranged in the fixed mold (9) in a penetrating mode, the upper vacuum air pipe (12) is located directly above the mold (10), the side vacuum air pipe (13) is located on the left side of the mold (10), the end face of the fixed mold (9) close to the mold (10) is welded with the sealing ring (14), six groups of the vertical runners (15) are arranged below the mold (10), the horizontal runner (16) is arranged below the six groups of the vertical runners (15), and the end of the horizontal runner (16) away from the vertical runner (15) is connected with the inner runner (17). The injection assembly comprises a pressing pipe (18), an inclined vacuum air pipe (19), an injection pipeline (20), an injection bucket (21), an air cylinder (22), a top rod (23) and a piston (24), the end face of the fixed mold (9) away from the mold (10) is welded with the pressing pipe (18), the top of the pressing pipe (18) is penetrated with the inclined vacuum air pipe (19) and the injection pipeline (20), and the pressing pipe (18) is sealingly and fixedly connected with the inner runner (17), the top of the injection pipeline (20) is sealingly and fixedly connected with the injection bucket (21), the end of the pressing pipe (18) away from the fixed mold (9) is provided with the air cylinder (22), the top rod (23) welded on the output end of the air cylinder (22) is installed with the piston (24), and the outer diameter of the piston (24) is completely same with the inner diameter of the pressing pipe (18).

2. An oil pan die-casting mold according to claim 1, characterized in that: The end face of the moving mold (4) close to the cavity (5) is welded with a sealing strip (25), the sealing strip (25) is located at the circumferential length of the moving mold (4), and the sealing groove (26) is arranged on the moving mold (4) close to the inside of the sealing strip (25).

3. An oil pan die as set forth in claim 1 wherein: The top plate (27) is welded with a top frame (28) near the end face of the fixed mold (9), and the top frame (28) penetrates the fixed mold (9) to the end face of the mold (10).

4. An oil pan die-casting mold according to claim 1, characterized by: The three sets of limiting grooves (7) and positioning rods (11) are one-to-one corresponding.

5. An oil sump die-cast mould according to claim 1 or 2, characterised in that: The sealing ring (14) and the sealing groove (26) are symmetrically arranged and can be connected in cooperation.

6. An oil pan die as set forth in claim 1 wherein: The inside of the fixed mold (9) is embedded with a circulating water pipe (29), and the cooling water pipe (6) and the circulating water pipe (29) are both externally connected with a water pipe.

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