A turbocharger housing casting mold

Abstract

The utility model relates to casting mould technical field, and disclose a kind of turbocharger shell casting mould, including casting platform, the cooling pool is fixedly connected in the casting platform top end inner wall, the sliding frame is fixedly connected in the casting platform top end and is located cooling pool rear side, the sliding frame inner wall is slidably connected with bending frame, and the upper side plugboard front end is fixedly connected with upper mould, and the lower side plugboard front end is fixedly connected with lower mould, the bottom of the upper mould is fixedly connected with several combined pressure modules, the lower mould inner wall is sequentially provided with mould groove corresponding combined pressure module downside, the casting platform top end is fixedly connected with air supply platform in cooling pool left and right sides. The utility model, by the hot air flow generated and blown to lower mould, cause the surface temperature of lower mould to rise, relieve the rigid shrinkage degree after lower mould cooling, thereby reduce the resistance in subsequent stripping work, avoid casting damage.

Description

Technical Field

[0001] This utility model relates to the field of casting mold technology, specifically a turbocharger housing casting mold. Background Technology

[0002] A turbocharger is a device used to increase the intake air volume of an engine. Essentially, it is an air compressor and is widely used in the internal combustion engine fields of automobiles and ships. Currently, the turbocharger's worm gear housing is mostly produced by casting molds. This process can ensure the complex shape and structural strength of the parts, meeting their working requirements in high temperature and high pressure environments.

[0003] In the casting of turbocharger housings, the mold needs to be cooled to accelerate the solidification of the molten casting. However, the mold expands when heated by the high-temperature molten casting and contracts rapidly when cooled, resulting in repeated deformation due to thermal expansion and contraction. This deformation can cause local interference fit between the molded housing and the mold, leading to the housing partially jamming the mold, greatly increasing the demolding resistance, making demolding difficult and easily damaging the casting.

[0004] In order to reduce demolding resistance and avoid damage to the formed casting, this application proposes a turbocharger housing casting mold. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a turbocharger housing casting mold that alleviates the rigid shrinkage of the lower mold after cooling, thereby reducing resistance during subsequent demolding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a turbocharger housing casting mold, comprising a casting platform, a cooling pool fixedly connected to the inner wall of the top of the casting platform, a sliding frame fixedly connected to the top of the casting platform behind the cooling pool, a bending frame slidably connected to the inner wall of the sliding frame, a cylinder fixedly connected to the inner wall of the bottom right end of the bending frame, an extension plate fixedly connected to the driving end of the cylinder, a docking block fixedly connected to the front end of the extension plate and the bending frame, a slot provided at the front end of each docking block, an insert plate provided on the inner wall of each slot, and a hole groove provided on the inner wall of each insert plate, an upper mold fixedly connected to the front end of the upper insert plate, a lower mold fixedly connected to the front end of the lower insert plate, a plurality of pressing modules fixedly connected to the bottom end of the upper mold, and mold grooves sequentially provided on the inner wall of the lower mold corresponding to the lower side of the pressing modules, and air supply platforms fixedly connected to the top of the casting platform on both the left and right sides of the cooling pool.

[0007] Further description: Fans are fixedly connected to the upper inner walls of both the front and rear sides of the opposite end of the air supply platform, and several heating wires are installed on the inner wall of the opposite end of the air supply platform located on the side of the fan; the heating wires need to be connected to the power supply before use, and the fan as a whole adopts a metal frame, which is heat-resistant and not easy to melt.

[0008] Further description: A hydraulic rod is fixedly connected to the inner wall of the top of the sliding frame, and the driving end of the hydraulic rod is fixedly connected to the top of the bending frame; the hydraulic rod is a driving component that can drive the connecting piece to move downward in a straight line.

[0009] Further description: Each of the opposite ends of the docking blocks is fixedly connected to a notch frame, and each notch frame has a vertical rod slidably connected to its inner top wall. Each vertical rod has a connecting plate fixedly connected to its top. The outer wall of the vertical rod is round, which reduces the corresponding resistance during sliding.

[0010] Further description: Each vertical rod has a bent plate fixedly connected to its bottom end, and the bottom ends of the bent plate are slidably connected to the inner wall of the notch frame; the distance between the front and rear ends of the bent plate is the same as the distance between the front and rear ends of the inner wall of the notch frame.

[0011] Further description: The inner wall of the bottom end of the bending plate is fixedly connected to a spring on the outside of the vertical rod, and the top of the spring is fixedly connected to the inner wall of the notch frame; the spring is elastic and generates elastic potential energy after being subjected to force so that it can rebound and drive the connecting parts to reset.

[0012] Further description: Each of the top inner walls of the docking blocks is slidably connected with a plug, the shape of the bottom end of the plug is matched with the shape of the inner wall of the slot, and the top ends of the plugs are respectively fixedly connected to the opposite side of the bottom end of the connecting plate; the overall length of the plug is the same as the overall height of the docking block, and after the bottom of the plug is in contact with the inner wall of the docking block, its top is higher than the docking block.

[0013] Further description: A water inlet pipe is fixedly connected to the front left side of the cooling pool, located on the upper part of the casting platform, and a water outlet pipe is fixedly connected to the left front side of the bottom of the cooling pool; both the water inlet and outlet pipes are made of PPR material, which is corrosion-resistant and has good pressure resistance.

[0014] Beneficial effects:

[0015] 1. In this utility model, with the cooperation of the air supply table, fan, heating wire, sliding frame, bending frame and hydraulic rod, after the mold is cooled, the generated hot airflow can be blown to the lower mold, causing the surface temperature of the lower mold to rise, which alleviates the rigid shrinkage of the lower mold after cooling, thereby reducing the resistance in the subsequent demolding process and avoiding damage to the casting.

[0016] 2. In this utility model, the lower mold and the upper mold are quickly disassembled on one end of the bending frame and the extension plate, respectively, through the cooperation of the connecting block, the slot, the notch frame, the bending plate, the vertical rod, the spring, the connecting plate, the plug, the insert plate, and the hole slot, so as to allow the lower mold and the upper mold to be maintained and repaired separately. Attached Figure Description

[0017] Figure 1 This is a front perspective view of a turbocharger housing casting mold according to the present invention;

[0018] Figure 2 This is a rear perspective view of a turbocharger housing casting mold according to the present invention.

[0019] Figure 3 This is a schematic diagram of the sliding frame structure of a turbocharger housing casting mold according to the present invention;

[0020] Figure 4 This is a half-sectional view of the air supply platform of a turbocharger housing casting mold according to this utility model;

[0021] Figure 5 This is a cross-sectional view of the mating block of a turbocharger housing casting mold according to the present invention;

[0022] Figure 6 This is a cross-sectional view of the notch frame of a turbocharger housing casting mold according to the present invention;

[0023] Figure 7 This is a schematic diagram of the cooling pool structure of a turbocharger housing casting mold according to the present invention.

[0024] In the diagram: 1. Casting table; 2. Cooling pool; 3. Air supply table; 4. Lower mold; 5. Upper mold; 6. Sliding frame; 7. Bending frame; 8. Hydraulic rod; 9. Cylinder; 10. Mold groove; 11. Pressing module; 12. Extension plate; 13. Connecting block; 14. Insert plate; 15. Heating wire; 16. Fan; 17. Notch frame; 18. Slot; 19. Hole slot; 20. Bolt; 21. Connecting plate; 22. Vertical rod; 23. Bending plate; 24. Spring; 25. Water inlet pipe; 26. Water outlet pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figures 1-4 , Figure 7A turbocharger housing casting mold includes a casting platform 1. A cooling pool 2 is fixedly connected to the inner wall of the top of the casting platform 1. A water inlet pipe 25 is fixedly connected to the front left side of the cooling pool 2 above the casting platform 1. A water outlet pipe 26 is fixedly connected to the left front side of the bottom of the cooling pool 2. A sliding frame 6 is fixedly connected to the top of the casting platform 1 behind the cooling pool 2. A bending frame 7 is slidably connected to the inner wall of the sliding frame 6. A hydraulic rod 8 is fixedly connected to the inner wall of the top of the sliding frame 6. The driving end of the hydraulic rod 8 is fixedly connected to the top of the bending frame 7. A cylinder 9 is fixedly connected to the inner wall of the right side of the bottom of the bending frame 7. An extension plate 12 is fixedly connected to the driving end of the cylinder 9. Both the extension plate 12 and the front end of the bending frame 7 are fixedly connected to... The docking block 13 has a slot 18 at its front end. The slot 18 has an insert plate 14 on its inner wall. The insert plate 14 has a hole 19 on its inner wall. The upper mold 5 is fixedly connected to the front end of the upper insert plate 14. The lower mold 4 is fixedly connected to the front end of the lower insert plate 14. Several pressing modules 11 are fixedly connected to the bottom end of the upper mold 5. The mold groove 10 is opened in sequence on the inner wall of the lower mold 4 corresponding to the lower side of the pressing module 11. The top of the casting platform 1 is fixedly connected to the air supply platform 3 on both sides of the cooling pool 2. The upper inner wall of the front and rear sides of the opposite end of the air supply platform 3 is fixedly connected to the fan 16. Several heating wires 15 are installed on the inner wall of the opposite end of the air supply platform 3 on the side of the fan 16.

[0028] To explain further, firstly, one end of the water inlet pipe 25 needs to be connected to the cold water tank output end, and the water outlet pipe 26 needs to be connected to the cold water tank recovery end. Before the mold cools, open the cold water tank output end and pump the cooling water to the cooling pool 2 to prepare for the subsequent mold cooling.

[0029] The cylinder 9 is activated, and its drive end pushes the extension plate 12 upward. Through the quick-release structure formed by the assembly of the docking block 13 and the insert plate 14, the upper mold 5 is moved upward synchronously. Then, the worker injects a certain amount of casting liquid into the mold groove 10 in sequence. Then, the drive end of the cylinder 9 is controlled to retract, which drives the upper mold 5 to reset, so that its bottom is tightly attached to the top of the lower mold 4. At this time, the pressing module 11 is embedded in the mold groove 10, which squeezes the casting liquid and causes the casting liquid to fill the gap between the pressing module 11 and the mold groove 10, thereby forming a shell shape. Then, the hydraulic rod 8 is activated, and its drive end pushes the bending frame 7 downward. One end of the bending frame 7 drives the lower mold 4 to move down to the cooling pool 2 through the quick-release structure. The cylinder 9 moves down synchronously with the bending frame 7 to ensure that the lower mold 4 and the upper mold 5 are always in contact. After the lower mold 4 enters the cooling pool 2, the cooling water in the pool cools its surface and accelerates the solidification and forming of the casting liquid.

[0030] After cooling is complete, the hydraulic rod 8 is retracted to reset the lower mold 4. Then, the heating wire 15 is energized to heat up, and the fan 16 is started to generate airflow. The airflow is heated by the heating wire 15 and blows into the lower mold 4 to increase its surface temperature, alleviate the rigid shrinkage after cooling, and reduce the subsequent demolding resistance. Then, the cylinder 9 is started again, and the drive end pushes the extension plate 12 upward to separate the lower mold 4 from the upper mold 5, so that the operator can take out the formed turbine housing.

[0031] Example 2

[0032] Please see Figures 5-6 Furthermore, based on Embodiment 1, each of the opposite ends of the mating blocks 13 is fixedly connected to a notch frame 17. Each of the inner walls of the top of the notch frame 17 is slidably connected to a vertical rod 22. Each of the tops of the vertical rod 22 is fixedly connected to a connecting plate 21. Each of the bottom ends of the vertical rod 22 is fixedly connected to a bent plate 23. The bottom ends of the bent plate 23 are slidably connected to the inner wall of the notch frame 17. Each of the inner walls of the bottom end of the bent plate 23, located outside the vertical rod 22, is fixedly connected to a spring 24. The tops of the springs 24 are fixedly connected to the inner wall of the notch frame 17. Each of the inner walls of the top of the mating blocks 13 is slidably connected to a bolt 20. The shape of the bottom end of the bolt 20 matches the shape of the inner wall of the slot 19. The tops of the bolts 20 are respectively fixedly connected to the opposite side of the bottom end of the connecting plate 21.

[0033] To further explain, by pushing the bending plate 23 upward, the bending plate 23 compresses the spring 24, causing the vertical rod 22 to slide upward. Then, through the connection plate 21, the plug 20 moves upward together and disengages from the slot 19, thereby releasing the restriction on the plug plate 14. Then, the upper mold 5 or the lower mold 4, along with the plug plate 14, can be removed from the docking block 13 side for separate maintenance.

[0034] Working principle: First, connect one end of the inlet pipe 25 to the output end of the cold water tank, and the outlet pipe 26 to the recovery end of the cold water tank. Before cooling the mold, open the output end of the cold water tank and use a water pump to draw out the cooling water and deliver it to the cooling pool 2 for mold cooling.

[0035] By activating cylinder 9, its drive end pushes extension plate 12 upward and drives upper mold 5 upward through quick-release structure. Then, the operator injects a certain amount of casting liquid into mold groove 10 in sequence. Then, the drive end of cylinder 9 is controlled to retract and drive upper mold 5 to reset, so that its bottom is in contact with the top of lower mold 4. At this time, the pressing module 11 is placed in mold groove 10 and squeezes the casting liquid, so that the casting liquid fills the gap between pressing module 11 and mold groove 10, thereby allowing the casting liquid to form a shell shape. Then, the hydraulic rod 8 is activated, its drive end pushes bending frame 7 downward. One end of bending frame 7 drives lower mold 4 to cool pool 2 through quick-release structure. Cylinder 9 moves downward synchronously with bending frame 7 to keep the lower mold 4 and upper mold 5 in contact. After lower mold 4 moves into cooling pool 2, the cooling water in cooling pool 2 will cool the surface of lower mold 4, further reducing the heat in lower mold 4 and accelerating the solidification of casting liquid.

[0036] After cooling is complete, the hydraulic rod 8 is retracted, causing the lower mold 4 to reset. Then, the heating wire 15 is activated to raise its surface temperature. Next, the fan 16 is activated to generate airflow that blows to the side of the lower mold 4. The airflow passing through the heating wire 15 is heated and forms a hot airflow that blows to the lower mold 4, causing the surface temperature of the lower mold 4 to rise. This alleviates the rigid shrinkage of the lower mold 4 after cooling, thereby reducing the resistance in the subsequent demolding process. Then, the cylinder 9 is activated, causing its drive end to push the extension plate 12 upward, causing the lower mold 4 and the upper mold 5 to separate. Then, the workers remove the formed turbine housing.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A turbocharger housing casting mold, comprising a casting table (1), characterized in that: A cooling pool (2) is fixedly connected to the inner wall of the top of the casting platform (1). A sliding frame (6) is fixedly connected to the top of the casting platform (1) behind the cooling pool (2). A bending frame (7) is slidably connected to the inner wall of the sliding frame (6). A cylinder (9) is fixedly connected to the inner wall of the bottom right side of the bending frame (7). An extension plate (12) is fixedly connected to the driving end of the cylinder (9). A docking block (13) is fixedly connected to the front end of both the extension plate (12) and the bending frame (7). A slot (18) is opened at the front end of each docking block (13). The inner wall of the slot (18) is provided with a plate (14), and the inner wall of the plate (14) is provided with a hole (19). The upper mold (5) is fixedly connected to the front end of the upper plate (14), and the lower mold (4) is fixedly connected to the front end of the lower plate (14). Several pressing modules (11) are fixedly connected to the bottom end of the upper mold (5). The mold groove (10) is opened in sequence on the inner wall of the lower mold (4) corresponding to the lower side of the pressing module (11). The top of the casting platform (1) is located on both the left and right sides of the cooling pool (2) and the air supply platform (3) is fixedly connected.

2. The turbocharger housing casting mold according to claim 1, characterized in that: Fans (16) are fixedly connected to the upper inner walls of the front and rear sides of the opposite end of the air supply platform (3), and several heating wires (15) are installed on the inner wall of the opposite end of the air supply platform (3) located on the side of the fan (16).

3. A turbocharger housing casting mold according to claim 1, characterized in that: A hydraulic rod (8) is fixedly connected to the inner wall of the top of the sliding frame (6), and the driving end of the hydraulic rod (8) is fixedly connected to the top of the bending frame (7).

4. A turbocharger housing casting mold according to claim 1, characterized in that: Each of the opposite ends of the docking blocks (13) is fixedly connected to a notch frame (17), and each notch frame (17) has a vertical rod (22) slidably connected to the inner wall of its top end. Each vertical rod (22) has a connecting plate (21) fixedly connected to its top end.

5. A turbocharger housing casting mold according to claim 4, characterized in that: The bottom of each vertical rod (22) is fixedly connected to a bent plate (23), and the bottom of the front and rear ends of the bent plate (23) are slidably connected to the inner wall of the notch frame (17).

6. A turbocharger housing casting mold according to claim 5, characterized in that: The inner wall of the bottom end of the bent plate (23) is fixedly connected to a spring (24) on the outside of the vertical rod (22), and the top of the spring (24) is fixedly connected to the inner wall of the notch frame (17).

7. A turbocharger housing casting mold according to claim 1, characterized in that: The inner wall of the top of each docking block (13) is slidably connected with a plug (20). The shape of the bottom of each plug (20) matches the shape of the inner wall of the slot (19). The top of each plug (20) is fixedly connected to the opposite side of the bottom of the connecting plate (21).

8. A turbocharger housing casting mold according to claim 1, characterized in that: The cooling pool (2) has an inlet pipe (25) fixedly connected to the front left side of the casting platform (1) and an outlet pipe (26) fixedly connected to the left side of the front bottom of the cooling pool (2).

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