A new die-casting production device and process for automobile oil filter cover

Abstract

The present invention relates to the field of die-casting mold technology, and in particular to a novel automobile oil filter cover die-casting production device and process, comprising a frame, and also comprising: a clamping mechanism, the clamping mechanism comprising a middle plate slidably connected to the frame, a front plate fixedly connected to the frame, and a bottom plate, the front plate being provided with a pushing device, the output end of the pushing device being connected to the middle plate, the middle plate being provided with a movable mold, the bottom plate being provided with a fixed mold, and the middle plate being moved to clamp the movable mold with the fixed mold. The present invention provides a clamping device, and after the fixed mold and the movable mold are clamped, the side clamping device clamps the mold through a hydraulic push rod and a wedge block. Compared with traditional die-casting that relies on the main clamping force to ensure the stability of the clamping, which is prone to problems such as uneven distribution of the main clamping force and expansion of the cavity, the clamping device achieves a dual role through rigid support and lateral force compensation, compensating for the uneven main clamping force and preventing aluminum from seeping into the parting surface to form flash.

Description

Technical Field

[0001] The present invention relates to the technical field of die casting dies, and in particular to a novel die casting production device and process for an automobile oil filter element cover. Background Art

[0002] As a key component in the engine lubrication system, automotive oil filters' core function is to filter impurities from the oil and ensure proper engine operation. Currently, die-casting filter production relies heavily on traditional die-casting equipment, which consists of a frame, movable die, fixed die, injection unit, and a basic clamping mechanism. A drive mechanism controls mold opening and closing, and injects molten aluminum. However, unstable mold clamping can affect die-casting quality.

[0003] In the existing technology, a main frame, a movable mold with a core, a fixed mold with a cavity, an ejector pin and a cooling pipe structure are used to realize the die-casting and cooling demolding of the aluminum alloy shell. In this method, there is a lack of precise positioning and lateral clamping mechanism, and the die-casting parts are prone to flash and dimensional deviation. A die-casting device is composed of a base, a support plate, a die-casting table, a die-casting plate and a clamping mechanism for die-casting of the aluminum alloy shell. In this method, the mold positioning accuracy is insufficient, and there is no protection design against the impact of aluminum liquid, and the stability of the casting quality is poor. The existing filter element is sealed with a rubber ring, which has a poor sealing effect, lacks rigid protection and is not convenient for quick installation. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art, such as the lack of precise positioning and lateral clamping mechanism, and the proneness of die-casting parts to flash and dimensional deviation, and to propose a new automobile oil filter cover die-casting production device and process.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A novel die-casting production device for an automobile oil filter cover includes a frame and:

[0007] A mold clamping mechanism, comprising a middle plate slidably connected to the frame, a front plate fixedly connected to the frame, and a bottom plate, wherein the front plate is mounted with a pushing device, the output end of which is connected to the middle plate, the middle plate is mounted with a movable mold, and the bottom plate is mounted with a fixed mold, wherein the middle plate moves to close the movable mold and the fixed mold, and clamping devices are mounted on both sides of the movable mold, and the output ends of the two clamping devices correspondingly abut against the two sides of the mold in the closed state;

[0008] The injection mechanism is used to inject molten aluminum liquid into the mold cavity in the mold closing state.

[0009] Preferably, the four corners of the front plate and the bottom plate are fixedly connected with sliding rods, the four corners of the middle plate are fixedly connected with sliding sleeves, the four sliding sleeves are slidably connected to the four sliding rods in a one-to-one correspondence, and the output end of the pushing device is the pushing rod.

[0010] Preferably, a plurality of docking rods are fixedly connected to the fixed mold, a plurality of docking holes are opened on the movable mold, and the plurality of docking rods are correspondingly engaged with the plurality of docking holes.

[0011] Preferably, a conical surface positioning block is fixedly connected to the fixed mold, and a conical surface matching block is fixedly connected to the movable mold, and the conical surface positioning block is engaged with the conical surface matching block.

[0012] Preferably, the clamping device includes a hydraulic push rod installed on the side of the movable mold, and the output end of the hydraulic push rod is fixedly connected to a wedge block, and the side of the wedge block away from the hydraulic push rod is in abutment with the side of the mold in the closed state.

[0013] Preferably, the injection mechanism includes a filling frame fixedly connected to the base plate, an injection device is installed on the filling frame, a material port is opened on the fixed mold, the output end of the injection device is connected to the material port, a diverter cone is fixedly connected to the movable mold, and when the fixed mold and the movable mold are closed, the material port and the diverter cone form an annular flow channel with a gradually decreasing thickness, and the end of the annular flow channel with a smaller thickness is connected to the mold cavity, and a vacuum device is installed on the frame, and the suction end of the vacuum device is sealably connected to the mold cavity.

[0014] Preferably, the output end of the pushing device is connected to a push plate, the push plate is fixedly connected to a plurality of fixed rods, the fixed rods are slidably connected to the fixed mold, and an ejector pin is installed on the push plate. After the ejector pin moves, it seals and penetrates the part of the cavity extending into the movable mold to eject the formed filter element cover.

[0015] Preferably, an ejection device is installed on the top of the movable mold. When the ejection device is working, the output end thereof extends downward to push the ejector pin to eject the top of the filter element cover.

[0016] Preferably, the assembly mechanism includes a sliding plate, a movable arm is slidably installed on the top of the sliding plate, and a rotating base is fixedly connected to the bottom, a lifter is installed on the output end of the movable arm, and a grabbing claw is installed on the output end of the lifter, and the top of the rotating base is rotatably connected to a fixed plate, and the grabbing claw is used to grab the copper washer and the filter element cover, and the top of the fixed plate is snap-fitted with the bottom of the filter element.

[0017] A novel automobile oil filter cover die-casting production process, using the novel automobile oil filter cover die-casting production device, includes the following steps:

[0018] S1: Preparation: preheat the mold, spray the release agent and blow dry;

[0019] S2: Mold closing: The pushing device works to push the middle plate to move, so that the fixed mold and the movable mold are closed;

[0020] S3: Side clamping: Two clamping devices work, and the hydraulic push rod drives the wedge block to fit the side of the fixed mold to form a lateral rigid support;

[0021] S4: Injection: The injection device injects the molten aluminum liquid into the mold cavity through the material port, and then cools and forms the mold after maintaining the pressure;

[0022] S5: Demolding: The pushing device works to separate the movable mold from the fixed mold, and then the ejector pin is pushed by the push plate to eject the formed filter element cover from the cavity;

[0023] S6: Polishing: Polish the filter element cover with external polishing equipment;

[0024] S7: Assembly: The assembly mechanism puts the copper washer onto the rubber ring of the filter element, and assembles the filter element cover to the top of the filter element to form the oil filter element.

[0025] A novel automotive oil filter element, a filter element cover produced using the above novel automotive oil filter element cover die-casting production process, comprises a filter element, both ends of which are fixedly connected to rubber rings, and further comprises:

[0026] The copper washer and the filter element cover are assembled so that the copper washer is sleeved on the outside of the rubber ring, and the filter element cover is fixedly connected to the top of the filter element.

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] 1. The present invention provides a clamping device. After the fixed mold and the movable mold are closed, the side clamping device clamps the mold through a hydraulic push rod and a wedge block. Compared with traditional die casting that relies on the main clamping force to ensure the stability of the mold closing, it is easy to have problems such as uneven distribution of the main clamping force and expansion of the cavity. The clamping device achieves a dual role through rigid support and lateral force compensation, which compensates for the uneven main clamping force, prevents aluminum from seeping into the parting surface to form flash, limits the expansion of the cavity, ensures the uniformity of the wall thickness of the casting, offsets the impact of the aluminum liquid on the side wall, prevents the warping and collapse of the casting caused by the deviation of the cavity, and effectively avoids the casting size out of tolerance and flash defects caused by mold deformation.

[0029] 2. The present invention provides a conical surface positioning block and a conical surface matching block. Initial positioning is achieved through the docking rod and the docking hole at the initial stage of mold closing, ensuring the basic alignment of the movable mold and the fixed mold. At the final stage of mold closing, the conical surface positioning block and the conical surface matching block are preferentially engaged, providing extremely high radial and circumferential positioning accuracy, forming progressive positioning from initial alignment to precise matching, effectively eliminating flash and dimensional deviation caused by mold misalignment, and improving mold closing accuracy through the dual positioning mechanism.

[0030] 3. The present invention provides a copper washer and a filter element cover, and adopts a double-layer structure design of a rubber ring and a copper washer, and utilizes the rigid pressure of the copper washer to enhance the sealing effect of the rubber ring. At the same time, the copper washer can isolate the rubber ring from direct contact with the corrosive medium, and prevent the sealing performance from being reduced due to corrosion of the rubber ring. The combination of flexible sealing and rigid protection can better adapt to the corrosive environment in long-term use than the single rubber ring seal, thereby improving the durability and sealing reliability of the filter element, and effectively targeting the high-temperature and oily medium working environment of the automotive oil filter element. By assembling the filter element cover on the filter element, the oil filter element can be conveniently and quickly installed through the filter element cover during the subsequent installation process, thereby improving the convenience and efficiency of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is an overall axonometric view of a new type of automobile oil filter cover die-casting production device proposed by the present invention.

[0032] Figure 2 This is a schematic diagram of the mold clamping mechanism of a new type of automobile oil filter cover die-casting production device proposed by the present invention.

[0033] Figure 3 This is a schematic diagram of the middle plate and bottom plate structure of a new type of automobile oil filter cover die-casting production device proposed by the present invention.

[0034] Figure 4 This is a schematic diagram of the movable mold structure of a new type of automobile oil filter cover die-casting production device proposed by the present invention.

[0035] Figure 5 This is a schematic diagram of the fixed mold structure of a new type of automobile oil filter cover die-casting production device proposed by the present invention.

[0036] Figure 6 This is a schematic diagram of the ejector pin and fixing rod structure of a new type of automobile oil filter cover die-casting production device proposed by the present invention.

[0037] Figure 7 This is a schematic diagram of the assembly mechanism used in a novel automobile oil filter element proposed by the present invention.

[0038] Figure 8 This is a schematic diagram of the overall structure of a new type of automobile oil filter element proposed by the present invention.

[0039] In the figure: 1. Injection device; 2. Filling frame; 3. Ejector pin; 4. Fixed rod; 5. Frame; 6. Front plate; 7. Middle plate; 8. Bottom plate; 9. Vacuum device; 10. Pushing device; 11. Pushing rod; 12. Sliding rod; 13. Sliding plate; 14. Moving arm; 15. Grabbing claw; 16. Rotating base; 17. Fixed plate; 18. Fixed mold; 19. Docking rod; 20. Sliding sleeve; 21. Material inlet; 22. Conical positioning block; 23. Moving mold; 24. Clamping device; 25. Ejector device; 26. Docking hole; 27. Conical matching block; 28. Diverter cone; 29. ​​Push plate; 30. Copper washer; 31. Filter element; 32. Rubber ring; 33. Filter element cover. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Reference Figures 1-6 A novel die-casting production device for automobile oil filter cover includes a frame 5 and a mold clamping mechanism, which includes a middle plate 7 slidably connected to the frame 5, a front plate 6 fixedly connected to the frame 5, and a bottom plate 8. The front plate 6 is mounted with a pushing device 10, and the output end of the pushing device 10 is connected to the middle plate 7. The middle plate 7 is mounted with a movable mold 23, and the bottom plate 8 is mounted with a fixed mold 18. After the middle plate 7 moves, the movable mold 23 is clamped with the fixed mold 18. Clamping devices 24 are mounted on both sides of the movable mold 23, and the output ends of the two clamping devices 24 correspondingly abut against the two sides of the mold in the clamped state.

[0042] The four corners of the front plate 6 and the bottom plate 8 are fixedly connected with sliding rods 12, and the four corners of the middle plate 7 are fixedly connected with sliding sleeves 20. The four sliding sleeves 20 are slidably connected to the four sliding rods 12 one by one, and the output end of the pushing device 10 is the pushing rod 11.

[0043] A plurality of docking rods 19 are fixedly connected to the fixed mold 18 , and a plurality of docking holes 26 are opened on the movable mold 23 . The plurality of docking rods 19 are correspondingly engaged with the plurality of docking holes 26 .

[0044] The docking rod 19 and the docking hole 26 improve the mold clamping accuracy of the movable mold 23 and the fixed mold 18.

[0045] A conical surface positioning block 22 is fixedly connected to the fixed mold 18 , and a conical surface matching block 27 is fixedly connected to the movable mold 23 . The conical surface positioning block 22 is meshed with the conical surface matching block 27 .

[0046] The engagement of the conical surface positioning block 22 with the conical surface matching block 27 further improves the radial mold closing precision of the movable mold 23 and the fixed mold 18, thereby improving the mold closing accuracy.

[0047] The clamping device 24 includes a hydraulic push rod installed on the side of the movable mold 23. The output end of the hydraulic push rod is fixedly connected to a wedge block, and the side of the wedge block away from the hydraulic push rod is in contact with the side of the mold in the closed state.

[0048] The injection mechanism is used to inject molten aluminum liquid into the mold cavity in the mold closing state.

[0049] The injection mechanism includes a filling frame 2 fixedly connected to the base plate 8, a material port 21 is opened on the fixed mold 18, an injection device 1 is installed on the filling frame 2, and a diverter cone 28 is fixedly connected to the movable mold 23. When the fixed mold 18 and the movable mold 23 are closed, the material port 21 and the diverter cone 28 form an annular flow channel with a gradually decreasing thickness. The end of the annular flow channel with a smaller thickness is connected to the mold cavity, and the output end of the injection device 1 is connected to the material port 21. A vacuum device 9 is installed on the frame 5, and the suction end of the vacuum device 9 is sealedly connected to the mold cavity.

[0050] The injection device 1 and the vacuum device 9 both adopt existing technologies. The injection device 1 is used to inject molten aluminum liquid into the material port 21 and finally inject it into the mold cavity. The vacuum device 9 is used to vacuum the mold cavity to improve the effect of aluminum liquid filling the mold cavity.

[0051] The output end of the pushing device 10 is connected to a push plate 29, which is fixedly connected to a plurality of fixed rods 4. The fixed rods 4 are slidably connected to the fixed mold 18. An ejector pin 3 is installed on the push plate 29. After the ejector pin 3 moves, it seals and penetrates the part of the cavity that extends into the movable mold 23, and ejects the formed filter element cover 33.

[0052] The pushing device 10 adopts the existing technology to provide power for the mold closing during the die-casting process and to provide power for the ejection operation of the die-casting part. The pushing rod 11 is a retractable structure. When the pushing device 10 is working, it can be controlled to drive the middle plate 7 and the push plate 29 to move respectively, ensuring that the mold closing and ejection operations are carried out in sequence.

[0053] An ejection device 25 is installed on the top of the movable mold 23. When the ejection device 25 is working, its output end extends downward to push the ejector pin 3 to eject the top of the filter element cover 33.

[0054] The ejection device 25 is an electric telescopic device. When the output end thereof is extended, the filter element cover 33 is pushed downward, so as to facilitate the demoulding of the filter element cover 33 by cooperating with the ejector pin 3 .

[0055] The clamping mechanism and the injection mechanism are die-casted into the filter element cover 33 through a mold.

[0056] When the present invention is used, molten aluminum liquid is added to the injection device 1 , and the injection device 1 is fixed to the bottom plate 8 through the filling frame 2 to ensure that the aluminum liquid can be stably injected into the material port 21 .

[0057] Start the pushing device 10 to push the middle plate 7. The four corners of the middle plate 7 are slidably connected to the sliding rod 12 through the sliding sleeve 20. Under the push of the output end of the pushing device 10, the movable mold 23 installed in the middle of the middle plate 7 begins to approach the fixed mold 18 installed in the middle of the bottom plate 8.

[0058] A docking rod 19 is provided on the fixed mold 18, and the docking rod 19 is aligned with the docking hole 26 on the movable mold 23. When the docking rod 19 is inserted into the inside of the docking hole 26, it indicates that the positions of the movable mold 23 and the fixed mold 18 have been aligned. Continue to push the movable mold 23 until the movable mold 23 and the fixed mold 18 are completely aligned and docked.

[0059] In addition, a conical surface positioning block 22 is provided on the fixed mold 18, and a conical surface matching block 27 is provided on the movable mold 23. At the end of mold closing, the conical surface positioning block 22 and the conical surface matching block 27 are engaged first, providing extremely high radial and circumferential positioning accuracy, ensuring perfect alignment of the cavity and the core, eliminating flash and dimensional deviation caused by misalignment, and improving product quality.

[0060] After the mold is closed, the clamping devices 24 on both sides of the movable mold 23 are started. The side auxiliary clamping devices 24 drive the wedge blocks to fit with the sides of the fixed mold 18 through the hydraulic push rods. By enhancing the closing stability of the fixed mold 18 and the movable mold 23, the quality of the die-cast product is significantly improved. The lateral clamping force can not only make up for the defect of uneven distribution of the main clamping force, but also make the parting surface fit tightly and block the molten metal from penetrating the gap to form flash; and during subsequent injection, the mold is prone to elastic deformation. The side clamping devices 24 limit the expansion of the cavity through rigid support, ensuring the uniformity of the wall thickness of the casting and the qualified key dimensional tolerances; finally, the lateral clamping force can offset the impact pressure of the aluminum liquid on the side wall of the cavity, prevent the casting from warping or collapse caused by local cavity deviation, and improve the quality of the casting.

[0061] After the mold is closed and the side is clamped, the injection device 1 is started to inject molten aluminum into the material port 21. At the same time, the vacuum device 9 is started to evacuate the inside of the cavity. The aluminum liquid first contacts the diverter cone 28 through the material port 21. The diverter cone 28 is located at the end of the sprue. The aluminum liquid first hits its conical surface. The conical structure disperses the concentrated liquid flow into a ring-shaped smooth flow to prevent the aluminum liquid from directly hitting the side wall of the cavity, causing air entanglement or mold erosion. The cone of the diverter cone 28 and the gate form a tapered cross-section, forcing the aluminum liquid to continuously fill the runner, preventing gas from being wrapped into the metal liquid when the runner is not full, significantly improving the product density, dimensional stability and surface quality, and extending the mold life.

[0062] After the molten aluminum liquid is injected and cooled under pressure to form, the mold is opened. The formed filter element cover 33 is located in the middle of the movable mold 23. The pushing device 10 is started again, and the pushing plate 29 is pushed by the pushing rod 11 to start pushing the ejector 3 on the back of the movable mold 23. The ejector 3 ejects the formed filter element cover 33. At this time, the ejection device 25 on the top of the movable mold 23 also starts to work, and the filter element cover 33 ejected by the ejector 3 is pushed downward, which is more convenient for unloading.

[0063] The external robot arm grabs the ejected filter element cover 33 and performs cooling, polishing and other processing on it.

[0064] During the processing of the filter element cover 33, the filter element 31 located on the fixed plate 17 is undergoing the installation of the copper gasket 30. The movable arm 14 moves left and right on the sliding plate 13. The grabbing claw 15 at the bottom of the movable arm 14 grabs the copper gasket 30 and moves it to the top of the filter element 31. The lifter works to move the copper gasket 30 downward and firmly install it on the outside of the rubber ring 32 of the filter element 31. The copper gasket 30 with a thickness of 0.5 mm can enhance the sealing of the rubber ring 32 and prevent insufficient sealing caused by corrosion of the rubber ring 32.

[0065] Finally, the grabbing claw 15 grabs the processed filter element cover 33, and the lifter works to cover the filter element cover 33 on the filter element 31, thereby completing the complete assembly of the oil filter element. The filter element cover 33 can facilitate the quick installation of the oil filter element.

[0066] The filter element cover 33 is made of aluminum alloy and is formed by die-casting, which increases the product's life, toughness and strength, and improves its appearance; the rubber ring 32 is made of a special rubber material with good elasticity and corrosion resistance to enhance the airtightness.

[0067] A novel automobile oil filter cover die-casting production process, using the novel automobile oil filter cover die-casting production device, includes the following steps:

[0068] S1: Preparation: Preheat the mold, spray the release agent and blow dry.

[0069] S2: Mold closing: The pushing device 10 works to push the middle plate 7 to move, so that the fixed mold 18 and the movable mold 23 are closed.

[0070] S3: Side clamping: The two clamping devices 24 work, and the hydraulic push rod drives the wedge block to fit the side of the fixed mold 18 to form a lateral rigid support.

[0071] S4: Injection: The injection device 1 injects the molten aluminum liquid into the mold cavity through the material port 21, and cools and forms the mold after maintaining the pressure.

[0072] S5: Demolding: The pushing device 10 works to separate the movable mold 23 from the fixed mold 18, and then the ejector pin 3 is pushed by the push plate 29 to eject the formed filter element cover 33 from the cavity.

[0073] S6: Polishing: Polish the filter element cover 33 by external polishing equipment.

[0074] S7: Assembly: The assembly mechanism puts the copper washer 30 onto the rubber ring 32 of the filter element 31, and assembles the filter element cover 33 to the top of the filter element 31 to form the oil filter element.

[0075] Reference Figure 7 and Figure 8 A novel automotive oil filter element, a filter element cover 33 produced using the above novel automotive oil filter element cover die-casting production process, includes a filter element 31, with rubber rings 32 fixedly connected to both ends of the filter element 31, and further includes:

[0076] The copper washer 30 and the filter element cover 33 are assembled so that the copper washer 30 is sleeved on the outside of the rubber ring 32 and the filter element cover 33 is fixedly connected to the top of the filter element 31 .

[0077] The assembly mechanism includes a sliding plate 13, a moving arm 14 is slidably installed on the top of the sliding plate 13, and a rotating base 16 is fixedly connected to the bottom. A lifter is installed on the output end of the moving arm 14, and a grabbing claw 15 is installed on the output end of the lifter. The top of the rotating base 16 is rotatably connected to a fixed plate 17. The grabbing claw 15 is used to grab the copper washer 30 and the filter element cover 33. The top of the fixed plate 17 is snap-fitted with the bottom of the filter element 31.

[0078] A rotating motor is installed inside the rotating base 16, and the fixed disk 17 is coaxially fixed to the output end of the rotating motor. When the rotating motor is working, its output end drives the fixed disk 17 to rotate, which facilitates assembly operation.

[0079] The movable arm 14 and the lifter both adopt existing technologies, and the two cooperate to control the movement of the grab claw 15 in the vertical plane to complete the assembly operation of the copper washer 30 and the filter element cover 33.

[0080] The rigid pressure of the copper washer 30 is used to enhance the sealing effect of the rubber ring 32 and isolate the corrosive medium. The invention can be applied to the oil box of the gear box of a heavy truck to filter the oil.

[0081] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A novel die-casting production device for an automobile oil filter cover, comprising a frame (5), characterized in that: Also includes: A mold clamping mechanism, the mold clamping mechanism comprises a middle plate (7) slidably connected to the frame (5), a front plate (6) fixedly connected to the frame (5), and a bottom plate (8); a pushing device (10) is installed on the front plate (6); an output end of the pushing device (10) is connected to the middle plate (7); a movable mold (23) is installed on the middle plate (7); a fixed mold (18) is installed on the bottom plate (8); after the middle plate (7) moves, the movable mold (23) and the fixed mold (18) are clamped; clamping devices (24) are installed on both sides of the movable mold (23); the output ends of the two clamping devices (24) are respectively pressed against the two sides of the mold in the clamped state; The injection mechanism is used to inject molten aluminum liquid into the mold cavity in the mold closing state.

2. The new automobile oil filter cover die-casting production device according to claim 1 is characterized in that: The four corners of the front plate (6) and the bottom plate (8) are fixedly connected to sliding rods (12), and the four corners of the middle plate (7) are fixedly connected to sliding sleeves (20). The four sliding sleeves (20) are slidably connected to the four sliding rods (12) in a one-to-one correspondence. The output end of the pushing device (10) is the pushing rod (11).

3. The new automobile oil filter cover die-casting production device according to claim 2 is characterized in that: A plurality of docking rods (19) are fixedly connected to the fixed mold (18), and a plurality of docking holes (26) are provided on the movable mold (23). The plurality of docking rods (19) are correspondingly engaged with the plurality of docking holes (26) in a one-to-one manner.

4. The new automobile oil filter cover die-casting production device according to claim 3 is characterized in that: A conical surface positioning block (22) is fixedly connected to the fixed mold (18), and a conical surface matching block (27) is fixedly connected to the movable mold (23). The conical surface positioning block (22) is meshed with the conical surface matching block (27).

5. The new automobile oil filter cover die-casting production device according to claim 4 is characterized in that: The clamping device (24) includes a hydraulic push rod installed on the side of the movable mold (23), the output end of the hydraulic push rod is fixedly connected to a wedge block, and the side of the wedge block away from the hydraulic push rod is in contact with the side of the mold in the mold closing state.

6. The new automobile oil filter cover die-casting production device according to claim 5 is characterized in that: The injection mechanism comprises a filling frame (2) fixedly connected to the base plate (8), an injection device (1) is installed on the filling frame (2), a material port (21) is opened on the fixed mold (18), an output end of the injection device (1) is connected to the material port (21), a diverter cone (28) is fixedly connected to the movable mold (23), and when the fixed mold (18) and the movable mold (23) are closed, the material port (21) and the diverter cone (28) form an annular flow channel with a gradually decreasing thickness, and the end of the annular flow channel with a smaller thickness is connected to the mold cavity, and a vacuum device (9) is installed on the frame (5), and the suction end of the vacuum device (9) is sealedly connected to the mold cavity.

7. The new automobile oil filter cover die-casting production device according to claim 6 is characterized in that: The output end of the pushing device (10) is connected to a push plate (29), and the push plate (29) is fixedly connected to a plurality of fixed rods (4). The fixed rods (4) are slidably connected to the fixed mold (18). An ejector pin (3) is installed on the push plate (29). After the ejector pin (3) moves, it seals and penetrates the part of the cavity extending into the movable mold (23), and ejects the formed filter element cover (33).

8. The new automobile oil filter cover die-casting production device according to claim 7 is characterized in that: The top of the movable mold (23) is equipped with an ejection device (25). When the ejection device (25) is working, its output end extends downward to push the ejector (3) to eject the top of the filter element cover (33). The assembly mechanism includes a sliding plate (13). The top of the sliding plate (13) is slidably equipped with a moving arm (14) and the bottom is fixedly connected to a rotating base (16). The output end of the moving arm (14) is equipped with a lifter. The output end of the lifter is equipped with a grabbing claw (15). The top of the rotating base (16) is rotatably connected to a fixed disk (17). The grabbing claw (15) is used to grab the copper washer (30) and the filter element cover (33). The top of the fixed disk (17) is engaged with the bottom of the filter element (31).

9. A new die-casting production process for automobile oil filter cover, characterized in that: The novel automobile oil filter cover die-casting production device according to claim 8 comprises the following steps: S1: Preparation: preheat the mold, spray the release agent and blow dry; S2: mold closing: the pushing device (10) works to push the middle plate (7) to move, so that the fixed mold (18) and the movable mold (23) are closed; S3: Side clamping: Two clamping devices (24) work, and the hydraulic push rod drives the wedge block to fit the side of the fixed mold (18) to form a lateral rigid support; S4: Injection: The injection device (1) injects the molten aluminum liquid into the mold cavity through the material port (21), and cools and forms the mold after maintaining the pressure; S5: demoulding: the pushing device (10) works to separate the movable mold (23) from the fixed mold (18), and then the ejector pin (3) is pushed by the push plate (29) to eject the formed filter element cover (33) from the mold cavity; S6: polishing: polishing the filter element cover (33) by external polishing equipment; S7: Assembly: The assembly mechanism puts the copper washer (30) onto the rubber ring (32) of the filter element (31), and assembles the filter element cover (33) onto the top of the filter element (31) to form the oil filter element.

10. A new type of automobile oil filter, characterized in that: The filter element cover (33) produced by the novel automobile oil filter element cover die-casting production process according to claim 9 comprises a filter element (31), both ends of the filter element (31) are fixedly connected to rubber rings (32), and further comprises: The copper washer (30) and the filter element cover (33) are assembled so that the copper washer (30) is sleeved on the outside of the rubber ring (32) and the filter element cover (33) is fixedly connected to the top of the filter element (31).

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