Die machining equipment and machining method for special-shaped flange

Abstract

The application provides a die machining device for a special-shaped flange and a machining method thereof, and belongs to the technical field of die machining. The die machining device for the special-shaped flange comprises a C-shaped frame, and further comprises: a die seat part, which is arranged on the C-shaped frame and is used for processing and forming the special-shaped flange; an auxiliary filling mechanism, which is arranged on the C-shaped frame and is used for driving the die seat part to displace along the length direction of the C-shaped frame; and a bubble eliminating mechanism, which is connected with the auxiliary filling mechanism and is used for eliminating bubbles in the molten metal in the die seat part. Through the reciprocating movement of the auxiliary filling mechanism, the molten metal is forced to diffuse in the pouring cavity, and local non-filling defects are avoided. The multi-point knocking design of the bubble eliminating mechanism generates vibration waves, destroys the surface tension of the bubbles, makes the bubbles float and break, significantly reduces the porosity, and thus guarantees the processing quality and processing efficiency of the special-shaped flange.

Description

Technical Field

[0001] This invention relates to the field of mold processing technology, specifically to a mold processing equipment and method for irregular flanges. Background Technology

[0002] Irregular flanges, also known as special-shaped flanges, are used as sealing and fastening connectors. They are widely used in large containers in aerospace, petroleum, and chemical industries. The machining of irregular flanges is relatively complex, and they can be manufactured using die-casting molds. The basic process of die casting is as follows: molten metal is first poured into the mold cavity at low or high speed. The mold has movable cavity surfaces, which are pressurized and forged as the molten metal cools, eliminating shrinkage cavities and porosity defects in the blank, and also achieving a forged, fragmented grain structure in the blank.

[0003] However, when filling the casting liquid with existing casting molds, the casting liquid may not be fully filled, resulting in air bubbles and other issues on the workpiece after casting. This affects the overall use of the workpiece in the later stages and reduces the processing quality and efficiency of the molded parts. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a mold processing equipment and processing method for irregular flanges.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A mold processing device for irregular flanges includes a C-frame and further includes:

[0007] A mold base, which is mounted on a C-shaped frame, is used for processing and forming irregular flanges;

[0008] An auxiliary filling mechanism is provided on a C-shaped frame and is used to drive the mold base to move along the length direction of the C-shaped frame.

[0009] A bubble elimination mechanism, which is connected to an auxiliary filling mechanism, is used to eliminate bubbles in the molten metal inside the mold base.

[0010] The bubble elimination mechanism includes a striking component that moves against the mold base, a swing assembly for driving the striking component, and a rotating assembly for driving the swing assembly to move.

[0011] Preferably, the mold base includes a hydraulic cylinder mounted on a C-shaped frame, an upper mold base connected to the piston rod of the hydraulic cylinder, and a lower mold base that cooperates with the upper mold base. Both the upper mold base and the lower mold base have cavities, and the two cavities together form a casting cavity.

[0012] Preferably, the C-shaped frame is provided with a sliding groove, and a slide block connected to a hydraulic cylinder is slidably connected in the sliding groove. An L-shaped support plate that is slidably connected to the lower mold base is fixed on the C-shaped frame. A guide rod is fixed on the lower mold base, and a guide tube that cooperates with the guide rod is provided at the bottom of the upper mold base.

[0013] Preferably, the upper mold base or the lower mold base has a pouring port that communicates with the pouring cavity, and a telescopic tube is fixed on the pouring port. The end of the telescopic tube away from the pouring port is connected to the molten metal injection equipment.

[0014] Preferably, the auxiliary filling mechanism includes a rotating rod rotatably mounted on a C-shaped frame, a reciprocating screw fixedly connected to the rotating rod, a sleeve threadedly connected to the reciprocating screw, and a connecting plate disposed between the sleeve and the lower die base. A drive motor for driving the reciprocating screw to rotate is fixedly mounted on the C-shaped frame.

[0015] Preferably, the swing assembly includes a fixed plate fixed on a C-shaped frame, a U-shaped frame disposed on the top of the fixed plate, a plurality of toothed groups disposed at intervals on the U-shaped frame, an abutment member slidably connected to the U-shaped frame and abutting against the outer wall of the lower mold base, a support plate fixedly connected to the abutment member, a rotating rod rotatably connected to the support plate, and a movable gear disposed on the rotating rod and meshing with the teeth of the toothed groups. The striking member is fixedly connected to the rotating rod, and a torsion spring is disposed between the rotating rod and the support plate.

[0016] Preferably, the U-shaped frame and the lower mold base have the same external cross-sectional shape, and the corners of the U-shaped frame and the lower mold base are both set as arcs.

[0017] Preferably, the rotating assembly includes an arc-shaped shell fixed to a fixed plate, an arc-shaped plate slidably connected inside the arc-shaped shell, an arc-shaped rack disposed on the arc-shaped plate, and a driven gear fixed to a rotating rod and meshing with the arc-shaped rack, wherein the abutment member is disposed on the arc-shaped plate.

[0018] Preferably, the abutting member includes a slide rod slidably connected to the arc-shaped plate, a limiting plate disposed at the end of the slide rod, an elastic element sleeved on the outside of the slide rod and connected at both ends to the arc-shaped plate and the limiting plate respectively, a U-shaped plate fixedly connected to the end of the slide rod away from the limiting plate, and a roller rotatably connected to the U-shaped plate via a rotating shaft and movingly abutting against the outer wall of the lower mold base, wherein the support plate is fixedly disposed on the U-shaped plate.

[0019] This invention also discloses a mold processing method for irregular flanges, which involves processing the flanges using the aforementioned mold processing equipment, and includes the following steps:

[0020] S1: Mold closing stage:

[0021] Start the hydraulic cylinder to drive the piston rod to move the upper mold base down. Through the cooperation of the guide rod and the guide tube, ensure that the upper mold base and the lower mold base are accurately closed to form the casting cavity.

[0022] S2: Metal liquid injection stage:

[0023] The metal molten metal is injected into the pouring cavity through a telescopic tube connected to a molten metal injection device. The telescopic tube can freely extend and retract as the mold base moves.

[0024] S3: Assisted filling and bubble elimination working in tandem:

[0025] Start the drive motor to drive the rotating rod and reciprocating screw to run in both directions, so that the sleeve pushes the lower die base to move back and forth along the length of the C-shaped frame through the connecting plate, forcing the molten metal to turbulently diffuse, avoiding dead zones of air entrapment, and promoting full filling of the molten metal.

[0026] The bubble elimination mechanism is triggered synchronously. The rotating rod drives the driven gear to mesh with the arc-shaped rack, which drives the arc plate to slide inside the arc shell. The roller of the abutment part moves close to the outer wall of the lower mold base. The support plate drives the rotating rod to make the movable gear mesh with the tooth set intermittently. The striking part swings with the rotating rod and frequently strikes the lower mold base in the circumference. The vibration wave and sound wave generated by the striking part striking the lower mold base are transmitted into the molten metal, which stimulates the cavitation effect, causes the bubbles to coalesce and float to the surface, and eliminates the bubbles in the molten metal.

[0027] S4: Cooling and mold opening:

[0028] After the molten metal solidifies, the hydraulic cylinder returns to lift the upper mold base, completing the forming of the irregular flange.

[0029] As can be seen from the above technical solutions, the present invention has the following beneficial effects:

[0030] 1. In this invention, when the auxiliary filling mechanism is working, the drive motor is controlled to run, the drive motor drives the rotating rod to rotate in both directions, the rotating rod drives the reciprocating screw to rotate synchronously, the sleeve moves back and forth along the axis of the reciprocating screw, and when the sleeve moves, it drives the lower mold seat to move through the connecting plate, thereby causing the auxiliary filling mechanism to drive the mold seat part to move back and forth as a whole, forcing the molten metal to turbulently diffuse in the casting cavity, reducing the dead angle of air entrapment, and ensuring that the molten metal is fully filled in the casting cavity, thus ensuring the processing quality of the molded part;

[0031] 2. In this invention, when the auxiliary filling mechanism is working, the rotating rod rotates, and the driven gear on the rotating rod meshes with the arc-shaped rack on the arc plate. The arc plate drives the abutment to rotate relative to the U-shaped frame and the lower mold base. When the abutment moves, it drives the swing assembly to move, thereby causing the swing assembly to move along the periphery of the lower mold base and perform a striking action. The striking component strikes the mold base and generates high-frequency vibration, causing the tiny bubbles in the molten metal to be vibrated, aggregate, and float to the surface. This solves the problem of uneven energy transmission and low degassing efficiency of a single vibration source in a large mold, improves vibration transmission efficiency, and ensures the processing quality of the irregular flange.

[0032] 3. In this invention, when the striking component strikes the lower mold base, the high-frequency vibration generated by the mold base can excite sound pressure fluctuations. The sound waves propagate in the liquid, and the negative pressure phase forms cavitation bubbles. The positive pressure phase bubbles collapse to generate micro-jet streams, tearing the bubble film and effectively eliminating bubbles in the molten metal, thus ensuring the processing quality of the formed parts.

[0033] 4. In this invention, when the swing assembly moves, the rotating rod moves with the support plate, causing the movable gear to intermittently mesh with multiple tooth groups on the U-shaped frame. When the movable gear meshes with the tooth groups, the rotating rod drives the striking component to rotate and strike the lower mold base. When the movable gear does not mesh with the tooth groups, the rotating rod quickly resets under the action of the torsion spring, thereby enabling the striking component to perform cyclic striking work on the lower mold base, effectively removing air bubbles in the mold cavity solution and ensuring the flange forming quality.

[0034] 5. In this invention, when the striking component is striking along the periphery of the mold base, it is coordinated with the auxiliary filling mechanism to drive the mold base to reciprocate laterally, so that the striking component can strike the periphery of different sections along the length of the mold base. This avoids excessive striking at the same position, which would affect its service life, and solves the problems of uneven energy transmission and low degassing efficiency of a single vibration source in a large mold. It achieves full coverage without dead angles, improves vibration transmission efficiency, and further ensures the processing quality of irregular flanges.

[0035] 6. In this invention, when the swinging component moves, it drives the abutment to move. The abutment is connected to the arc plate through the slide rod and elastic element. The roller always fits against the outer wall of the lower mold base to compensate for the gap change caused by the thermal deformation of the mold and avoid the impact of distance difference on its knocking vibration effect.

[0036] 7. In this invention, by matching the inner arc surface of the U-shaped frame with the outer contour of the lower mold base, and designing the corner as an arc, motion interference is avoided, allowing the gear to pass smoothly through the corner of the U-shaped frame, ensuring the stable operation and function of the striking component of the device. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0038] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0039] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0040] Figure 4 This is a schematic diagram of the structure of the mold base when it is separated according to the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of the mold base portion of the present invention sliding on the L-shaped support plate;

[0042] Figure 6 This is a partial structural schematic diagram of the bubble elimination mechanism of the present invention;

[0043] Figure 7 For the present invention Figure 6 Enlarged structural diagram of section A in the middle;

[0044] Figure 8 This is a schematic diagram showing the positional distribution of the mold base and the U-shaped frame according to the present invention;

[0045] Figure 9 This is a schematic diagram of the arc-shaped plate of the present invention. Figure 1 ;

[0046] Figure 10 This is a schematic diagram of the arc-shaped plate of the present invention. Figure 2 ;

[0047] Figure 11 This is a schematic diagram of the structure of the swing assembly of the present invention.

[0048] In the diagram: 1. C-shaped frame; 2. Mold base; 201. Hydraulic cylinder; 202. Upper mold base; 2021. Guide tube; 203. Lower mold base; 2031. Guide rod; 3. Striking component; 4. Slide groove; 401. Slide seat; 5. L-shaped support plate; 6. Sprue; 601. Telescopic tube; 7. Rotating rod; 701. Reciprocating screw; 702. Sleeve; 703. Connecting plate; 704. Drive motor; 8. Fixing plate; 801. U-shaped frame; 802. Gear assembly; 803. Support plate; 804. Rotating rod; 805. Movable gear; 9. Abutment component; 901. Slide rod; 902. Limiting plate; 903. Elastic element; 904. U-shaped plate; 905. Roller; 10. Arc-shaped shell; 1001. Arc-shaped plate; 1002. Arc-shaped rack; 11. Driven gear. Detailed Implementation

[0049] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions:

[0053] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A mold processing device for irregular flanges includes a C-shaped frame 1, and further includes a mold base 2, an auxiliary filling mechanism, and an air bubble elimination mechanism. The mold base 2 is mounted on the C-shaped frame 1 and is used for processing and forming irregular flanges. The mold base 2 includes a hydraulic cylinder 201 mounted on the C-shaped frame 1, an upper mold base 202 connected to the piston rod of the hydraulic cylinder 201, and a lower mold base 203 cooperating with the upper mold base 202. Both the upper mold base 202 and the lower mold base 203 have cavities, and the two cavities together form a casting cavity. The upper mold base 202 or the lower mold base 203 has... A pouring port 6 is connected to the pouring cavity. A telescopic tube 601 is fixed on the pouring port 6. The end of the telescopic tube 601 away from the pouring port 6 is connected to the molten metal injection equipment. An auxiliary filling mechanism is set on the C-shaped frame 1 and is used to drive the mold base 2 to move along the length direction of the C-shaped frame 1. A bubble elimination mechanism is connected to the auxiliary filling mechanism and is used to eliminate bubbles in the molten metal in the mold base 2. The bubble elimination mechanism includes a striking member 3 that moves against the mold base 2, a swing assembly for driving the striking member 3 to move, and a rotating assembly for driving the swing assembly to move.

[0054] Specifically, by controlling the operation of the hydraulic cylinder 201, the piston rod of the hydraulic cylinder 201 drives the upper mold base 202 to move downward. A guide rod 2031 is fixed on the lower mold base 203. A conduit 2021 that cooperates with the guide rod 2031 is provided at the bottom of the upper mold base 202. The conduit 2021 of the upper mold base 202 slides on the guide rod 2031 of the lower mold base 203, guiding the downward movement of the upper mold base 202 until the upper mold base 202 and the lower mold base 203 are in contact. The cavity between the upper mold base 202 and the lower mold base 203 is closed to form a casting cavity. Then, the molten metal injection device injects molten metal into the telescopic tube 601. The molten metal injection device is existing technology and will not be described in detail here. The molten metal enters and fills the casting cavity through the casting port 6 via the telescopic tube 601. The telescopic tube 601 can assist in filling. When the mechanism drives the mold base 2 to move, it can freely extend and retract. The telescopic tube 601 should be made of high-temperature resistant material. By controlling the operation of the auxiliary filling mechanism, the auxiliary filling structure drives the mold base 2 to move along the length direction of the C-shaped frame 1, forcing the molten metal to diffuse turbulently in the casting cavity, reducing the dead angle of air entrapment, and ensuring that the molten metal is fully filled in the casting cavity, thus ensuring the processing quality of the molded parts. When the auxiliary filling mechanism is working, it drives the rotating component to move, which in turn drives the swinging component to work. The swinging component drives the striking component 3 to strike the mold base 2. The striking component 3 strikes the mold base to generate high-frequency vibration, causing the tiny bubbles in the molten metal to be vibrated, gather, and float. The vibration synchronously excites sound pressure fluctuations. The negative pressure phase forms cavitation bubbles, and the positive pressure phase bubbles collapse to generate micro-jet, tearing the bubble film and effectively eliminating bubbles in the molten metal, thus ensuring the processing quality of the molded parts.

[0055] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As a preferred technical solution in this embodiment, further, in order to facilitate the lateral movement of the mold base 2, a sliding groove 4 is provided on the C-shaped frame 1, and a sliding seat 401 connected to the hydraulic cylinder 201 is slidably connected in the sliding groove 4. An L-shaped support plate 5 slidably connected to the lower mold base 203 is fixed on the C-shaped frame 1. The upper mold base 202 and the lower mold base 203 are locked and limited by the guide tube 2021 and the guide rod 2031, so that when the auxiliary filling mechanism drives the lower mold base 203 to move laterally, the lower mold base 203 drives the upper mold base 202 to move laterally, thereby making the sliding seat 401 connected to the upper side of the upper mold base 202 via the hydraulic cylinder 201 slide in the sliding groove 4, realizing the overall displacement of the mold base 2. When the lower mold base 203 moves laterally, it slides on the L-shaped support plate 5, which supports the lower mold base 203 and guides its movement direction.

[0056] Reference Figure 1 , Figure 2 and Figure 3 In some embodiments, the auxiliary filling mechanism further includes a rotating rod 7 rotatably mounted on the C-shaped frame 1, a reciprocating screw 701 fixedly connected to the rotating rod 7, a sleeve 702 threadedly connected to the reciprocating screw 701, and a connecting plate 703 disposed between the sleeve 702 and the lower mold base 203. A drive motor 704 for driving the reciprocating screw 701 to rotate is fixed on the C-shaped frame 1. When the auxiliary filling mechanism is working, the drive motor 704 is controlled to run. The output shaft of the drive motor 704 drives the rotating rod 7 to rotate in both directions. The rotating rod 7 drives the reciprocating screw 701 to rotate synchronously. The sleeve 702 moves back and forth along the axial direction of the reciprocating screw 701. When the sleeve 702 moves, it drives the lower mold base 203 to move through the connecting plate 703, thereby causing the auxiliary filling mechanism to drive the mold base part 2 to move back and forth as a whole.

[0057] Reference Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 In some embodiments, the swing assembly further includes a fixed plate 8 fixed on the C-shaped frame 1, a U-shaped frame 801 set on the top of the fixed plate 8, a plurality of toothed sets 802 spaced apart on the U-shaped frame 801, an abutment member 9 slidably connected to the U-shaped frame 801 and abutting against the outer wall of the lower mold base 203, a support plate 803 fixedly connected to the abutment member 9, a rotating rod 804 rotatably connected to the support plate 803, and a movable gear 805 set on the rotating rod 804 and meshing with the teeth of the toothed sets 802. The striking member 3 is fixedly connected to the rotating rod 804, and a torsion spring is provided between the rotating rod 804 and the support plate 803.

[0058] Furthermore, the rotating assembly includes an arc-shaped shell 10 fixed on the fixed plate 8, an arc-shaped plate 1001 slidably connected inside the arc-shaped shell 10, an arc-shaped rack 1002 disposed on the arc-shaped plate 1001, and a driven gear 11 fixed on the rotating rod 7 and meshing with the arc-shaped rack 1002, with the abutment member 9 disposed on the arc-shaped plate 1001.

[0059] Furthermore, the abutment 9 includes a slide rod 901 slidably connected to the arc plate 1001, a limiting plate 902 disposed at the end of the slide rod 901, an elastic element 903 sleeved on the outside of the slide rod 901 and connected at both ends to the arc plate 1001 and the limiting plate 902 respectively, a U-shaped plate 904 fixedly connected to the end of the slide rod 901 away from the limiting plate 902, and a roller 905 rotatably connected to the U-shaped plate 904 via a rotating shaft and movingly abutting against the outer wall of the lower mold base 203. The support plate 803 is fixedly disposed on the U-shaped plate 904. The abutment 9 is connected to the arc plate 1001 through the slide rod 901 and the elastic element 903. The roller 905 always fits against the outer wall of the lower mold base 203 to compensate for the gap change caused by the thermal deformation of the mold and avoid the impact of the striking vibration effect of the striking element 3 on the lower mold base 203 due to the distance difference.

[0060] Specifically, the fixed plate 8 is bolted to the C-shaped frame 1, serving as the support base for the entire swing assembly. The U-shaped frame 801 is welded to the top of the fixed plate 8, and its inner arc surface matches the outer contour of the lower mold base 203. The corner is designed to be arc-shaped to avoid motion interference, allowing the gear to pass smoothly through the corner of the U-shaped frame 801, ensuring the stable operation and work of the striking part 3 of the device.

[0061] When the auxiliary filling mechanism is working, the rotating rod 7 rotates, and the driven gear 11 on the rotating rod 7 meshes with the arc rack 1002 on the arc plate 1001. The arc plate 1001 drives the abutment 9 to rotate relative to the U-shaped frame 801 and the lower mold base 203. When the abutment 9 moves, it drives the swing assembly to move. When the rotating rod 804 moves with the support plate 803, the movable gear 805 intermittently meshes with multiple tooth sets 802 on the U-shaped frame 801. When the movable gear 805 meshes with the tooth sets 802, the rotating rod 804 drives the striking part 3 to rotate and move against the lower mold base 203. When the movable gear 805 and the tooth assembly 802 are not engaged, the rotating rod 804 quickly resets under the action of the torsion spring, preparing for the subsequent knocking action. This allows the striking element 3 to strike the periphery of the lower mold base 203 as the arc plate 1001 rotates. The striking element 3 strikes the mold base to generate high-frequency vibration, causing the tiny bubbles in the molten metal to be vibrated, aggregate, and float to the surface. The vibration synchronously excites sound pressure fluctuations. The negative pressure phase forms cavitation bubbles, and the positive pressure phase bubbles collapse to generate micro-jet, tearing the bubble film and effectively eliminating bubbles in the molten metal, thus ensuring the processing quality of the formed parts.

[0062] Furthermore, as the auxiliary filling mechanism drives the mold base 2 to reciprocate laterally, the striking component 3 can strike the periphery of different sections along the length of the mold base 2. This avoids excessive striking at the same location, which could affect its service life, while solving the problems of uneven energy transmission and low degassing efficiency of a single vibration source in a large mold. It achieves full coverage without dead angles, improves vibration transmission efficiency, and further ensures the processing quality of irregular flanges.

[0063] This invention also discloses a method for processing irregular-shaped flanges using a mold processing device, comprising the following steps:

[0064] S1: Mold closing stage:

[0065] Start the hydraulic cylinder 201, drive the piston rod to move the upper mold base 202 down, and through the cooperation of the guide rod 2031 and the guide tube 2021, ensure that the upper mold base 202 and the lower mold base 203 are precisely closed to form the casting cavity;

[0066] S2: Metal liquid injection stage:

[0067] The metal molten injection device is connected through the telescopic tube 601, and the metal molten injection is injected into the casting cavity from the pouring port 6. The telescopic tube 601 can freely extend and retract as the mold base part 2 moves.

[0068] S3: Assisted filling and bubble elimination working in tandem:

[0069] Start the drive motor 704 to drive the rotating rod 7 and the reciprocating screw 701 to run in both directions, so that the sleeve 702 pushes the lower mold base 203 to move back and forth along the length of the C-shaped frame 1 through the connecting plate 703, forcing the molten metal to turbulently diffuse, avoiding dead corners of air entrapment, and promoting full filling of the molten metal.

[0070] The bubble elimination mechanism is triggered synchronously. The rotating rod 7 drives the driven gear 11 to mesh with the arc rack 1002, driving the arc plate 1001 to slide inside the arc shell 10. The roller 905 of the abutment part 9 moves close to the outer wall of the lower mold base 203. The support plate 803 drives the rotating rod 804 to make the movable gear 805 intermittently mesh with the tooth set 802. The striking part 3 swings with the rotating rod 804 and frequently strikes the lower mold base 203 in the circumference. The vibration wave and sound wave generated by the striking part 3 striking the lower mold base 203 are transmitted into the molten metal, stimulating the cavitation effect, causing the bubbles to coalesce and float to the surface, thus eliminating the bubbles in the molten metal.

[0071] As the auxiliary filling mechanism drives the mold base 2 to reciprocate laterally, the striking part 3 can strike the periphery of different sections along the length of the mold base 2. This avoids excessive striking at the same location, which would affect its service life. At the same time, it solves the problems of uneven energy transmission and low degassing efficiency of a single vibration source in a large mold, achieving full coverage without dead angles, improving vibration transmission efficiency, and further ensuring the processing quality of the irregular flange.

[0072] S4: Cooling and mold opening:

[0073] After the molten metal solidifies, the hydraulic cylinder 201 returns and raises the upper mold base 202, completing the forming of the irregular flange.

[0074] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0075] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A mold processing device for irregular flanges, comprising a C-shaped frame (1), characterized in that, Also includes: The mold base (2) is mounted on the C-shaped frame (1) and is used for forming irregular flanges; the auxiliary filling mechanism is mounted on the C-shaped frame (1) and is used to drive the mold base (2) to move along the length direction of the C-shaped frame (1); the bubble elimination mechanism is connected to the auxiliary filling mechanism and is used to eliminate bubbles in the molten metal inside the mold base (2); wherein, the bubble elimination mechanism includes a striking member (3) that moves against the mold base (2), a swing assembly for driving the striking member (3) to move, and a rotating assembly for driving the swing assembly to move. The mold base (2) includes a hydraulic cylinder (201) mounted on a C-shaped frame (1), an upper mold base (202) connected to the piston rod of the hydraulic cylinder (201), and a lower mold base (203) cooperating with the upper mold base (202). Both the upper mold base (202) and the lower mold base (203) are provided with cavities, and the two cavities together form a casting cavity. The C-shaped frame (1) is provided with a sliding groove (4), and a sliding seat (401) connected to a hydraulic cylinder (201) is slidably connected in the sliding groove (4). An L-shaped support plate (5) is fixed on the C-shaped frame (1) and slidably connected to the lower mold base (203). A guide rod (2031) is fixed on the lower mold base (203). A guide tube (2021) that cooperates with the guide rod (2031) is provided at the bottom of the upper mold base (202). The auxiliary filling mechanism includes a rotating rod (7) rotatably mounted on a C-shaped frame (1), a reciprocating screw (701) fixedly connected to the rotating rod (7), a sleeve (702) threadedly connected to the reciprocating screw (701), and a connecting plate (703) disposed between the sleeve (702) and the lower die base (203). A drive motor (704) for driving the reciprocating screw (701) to rotate is fixed on the C-shaped frame (1). The swing assembly includes a fixed plate (8) fixed on a C-shaped frame (1), a U-shaped frame (801) set on the top of the fixed plate (8), a plurality of toothed groups (802) spaced apart on the U-shaped frame (801), an abutment (9) slidably connected to the U-shaped frame (801) and abutting against the outer wall of the lower mold base (203), a support plate (803) fixedly connected to the abutment (9), a rotating rod (804) rotatably connected to the support plate (803), and a movable gear (805) set on the rotating rod (804) and meshing with the teeth of the toothed groups (802). The striking element (3) is fixedly connected to the rotating rod (804), and a torsion spring is provided between the rotating rod (804) and the support plate (803). The rotating assembly includes an arc-shaped shell (10) fixed on a fixed plate (8), an arc-shaped plate (1001) slidably connected inside the arc-shaped shell (10), an arc-shaped rack (1002) disposed on the arc-shaped plate (1001), and a driven gear (11) fixed on a rotating rod (7) and meshing with the arc-shaped rack (1002). The abutment (9) is disposed on the arc-shaped plate (1001). The abutment (9) includes a slide rod (901) slidably connected to the arc plate (1001), a limiting plate (902) set at the end of the slide rod (901), an elastic element (903) sleeved on the outside of the slide rod (901) and connected at both ends to the arc plate (1001) and the limiting plate (902) respectively, a U-shaped plate (904) fixedly connected to the end of the slide rod (901) away from the limiting plate (902), and a roller (905) rotatably connected to the U-shaped plate (904) via a rotating shaft and movingly abutting against the outer wall of the lower mold base (203). The support plate (803) is fixedly mounted on the U-shaped plate (904).

2. The mold processing equipment for irregular flanges according to claim 1, characterized in that, The upper mold base (202) or the lower mold base (203) is provided with a pouring port (6) that communicates with the pouring cavity. A telescopic tube (601) is fixed on the pouring port (6). The end of the telescopic tube (601) away from the pouring port (6) is connected to the molten metal injection equipment.

3. The mold processing equipment for irregular flanges according to claim 2, characterized in that, The U-shaped frame (801) and the lower mold base (203) have the same external cross-sectional shape, and the corners of the U-shaped frame (801) and the lower mold base (203) are both set as arcs.

4. A method for processing an irregularly shaped flange using a mold processing device as described in claim 3, characterized in that... Includes the following steps: S1: Mold closing stage: Start the hydraulic cylinder (201) to drive the piston rod to move the upper mold base (202) down. Through the cooperation of the guide rod (2031) and the guide tube (2021), ensure that the upper mold base (202) and the lower mold base (203) are accurately closed to form the casting cavity; S2: Metal liquid injection stage: The metal liquid injection equipment is connected through the telescopic tube (601), and the metal liquid is injected from the pouring port (6) into the pouring cavity. The telescopic tube (601) can freely extend and retract with the displacement of the mold base (2). S3: Assisted filling and bubble elimination working stage: Start the drive motor (704) to drive the rotating rod (7) and the reciprocating screw (701) to run in both directions, so that the sleeve (702) pushes the lower mold base (203) to move back and forth along the length of the C-shaped frame (1) through the connecting plate (703), forcing the molten metal to turbulently diffuse, avoiding dead corners of air entrapment, and promoting full filling of the molten metal; The bubble elimination mechanism is triggered synchronously. The rotating rod (7) drives the driven gear (11) to mesh with the arc rack (1002), driving the arc plate (1001) to slide in the arc shell (10). The roller (905) of the abutment part (9) moves close to the outer wall of the lower mold base (203). The support plate (803) drives the rotating rod (804) to make the movable gear (805) mesh with the tooth set (802) intermittently. The striking part (3) swings with the rotating rod (804) and frequently strikes the lower mold base (203) in the circumference. The vibration wave and sound wave generated by the striking part (3) striking the lower mold base (203) are transmitted into the molten metal, stimulating the cavitation effect, causing the bubbles to coalesce and float, and eliminating the bubbles in the molten metal. S4: Cooling and mold opening: After the molten metal solidifies, the hydraulic cylinder (201) returns and raises the upper mold base (202) to complete the forming of the irregular flange.

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