Aluminum alloy casting mold for range extender aluminum alloy shell

Abstract

The present invention relates to the technical field of casting molds, and specifically discloses an aluminum alloy casting mold for an aluminum alloy shell of a range extender, including a protective shell, a mounting column is installed on the inner bottom of the protective shell, a polygonal mounting groove is provided on the top of the mounting column, a third mold is installed on the inner bottom of the mounting groove, a second mold is installed on the top of the third mold, a first mold is installed on the top of the second mold, a model groove is provided on the top of the second mold and the third mold, model blocks matching the model groove are installed on the bottom of the first mold and the second mold, support plates are installed on the outer wall of the mounting column near the corner, and the side of the support plate away from the mounting column is installed on the inner wall of the protective shell near the corner. The first mold, the second mold and the third mold of the present invention are relatively stacked and used, so that the three molds form two cavities, and multiple aluminum alloy shells can be cast and produced at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of casting molds, and in particular to an aluminum alloy casting mold for an aluminum alloy shell of a range extender. Background Art

[0002] A casting mold is a tool used to make metal parts. It melts the metal and pours it into a mold so that it solidifies in a specific shape. Range extenders generally refer to electric vehicle components that can provide additional electrical energy, thereby increasing the mileage of electric vehicles. In the sense of transmission, range extenders are a combination of an engine and a generator. When producing range extenders, in order to make the range extender shell provide better protection for its interior, the range extender shell will be cast through a casting mold.

[0003] The commonly used range extender aluminum alloy shells are cast in a cavity formed by the cooperation of an upper mold and a lower mold during production. However, only one aluminum alloy shell can be produced at a time. When a large number of aluminum alloy shells need to be produced, the production efficiency of the aluminum alloy shells is low, and the cooling efficiency of the aluminum alloy liquid is slow during molding and cooling, and the aluminum alloy liquid cannot be quickly molded and solidified. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an aluminum alloy casting mold for an aluminum alloy shell of a range extender.

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

[0006] An aluminum alloy casting mold for an aluminum alloy shell of a range extender, comprising a protective shell, a mounting column is installed on the inner bottom of the protective shell, a polygonal mounting groove is provided on the top of the mounting column, a third mold is installed on the inner bottom of the mounting groove, a second mold is installed on the top of the third mold, a first mold is installed on the top of the second mold, model grooves are provided on the tops of the second mold and the third mold, model blocks matching the model grooves are installed on the bottoms of the first mold and the second mold, support plates are installed on the outer walls of the mounting columns near the corners, and the side of the support plate away from the mounting column is installed on the inner wall of the protective shell near the corner.

[0007] Preferably, a connecting plate is installed on the side of the protective shell, and the sides of the two support plates away from the connecting plate are provided with connecting holes in the length direction, and the tops of several inner walls of the installation groove are provided with arc grooves that cooperate with each other, and the inner walls of the arc grooves are provided with threads.

[0008] Preferably, an external thread block is installed at the inner top of the mounting groove, the bottom end of the external thread block abuts against the top of the first mold, the outer wall of the external thread block and the arc groove are meshed and connected with each other through threads, and the outer walls of the first mold, the second mold and the third mold are all polygons that cooperate with the inner wall of the mounting groove.

[0009] Preferably, a first injection hole is provided at the top and bottom of the second mold near one end of the connecting plate, the first injection hole located at the top is connected to the model groove at the top of the second mold, the first injection hole located at the bottom is connected to the model groove at the top of the third mold, and a second injection hole that cooperates with the first injection hole is provided on one side of the first mold and the third mold near the second mold.

[0010] Preferably, two fixing holes matching the two second injection holes are provided on one side of the mounting groove close to the connecting plate, and funnel-shaped feed grooves are provided on both sides of the connecting plate away from the protective shell, and a feed hole is provided on the inner wall of the feed groove close to the protective shell.

[0011] Preferably, two conveying pipes are obliquely installed inside the protective shell, and the conveying pipes are located between the side of the mounting column close to the connecting plate and the inner wall of the protective shell. One end of the conveying pipe is installed inside the fixing hole, and the other end passes through the protective shell and is connected to the feed hole.

[0012] Preferably, guide holes are provided at positions near several inner walls of the inner bottom of the mounting groove, the bottom ends of the guide holes penetrate the mounting column and the protective shell, a support rod is slidably installed in the guide hole, the top end of the support rod abuts against the bottom of the third mold, and the bottom end of the support rod penetrates the guide hole to the bottom of the protective shell.

[0013] Preferably, the three sides of the protective shell away from the connecting plate are provided with air vents in the length direction, the air vents are located on the top side of the mounting column, a top cover is installed on the top of the external threaded block, and the tops of the protective shell and the mounting column are abutted against the bottom of the top cover.

[0014] Preferably, an L-shaped lifting plate is slidably installed on the side of the protective shell near the corners, and guide grooves are opened at the side corners of the protective shell in the length direction. A guide block is slidably installed inside the guide groove, and the end of the guide block away from the inner wall of the guide groove is installed on the inner wall of the lifting plate.

[0015] Preferably, reinforcement plates are installed on the four sides of the protective shell, and the two ends of the reinforcement plates are respectively installed on the opposite surfaces of the top ends of two adjacent lifting plates. Hydraulic cylinders are installed on both sides of the protective shell below the air outlet, and the bottom end of the piston rod of the hydraulic cylinder is installed on the top of the reinforcement plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, the first mold, the second mold and the third mold are relatively stacked for use, so that the three molds form two cavities. When the cast aluminum alloy shell is taken out, it can be taken out in sequence, which can save the cost of using the molds. When in use, the three molds can be moved by driving a plurality of support rods through the weight of the protective shell and the mounting column itself, which makes it more convenient for the staff to take the cooled aluminum alloy shell out. When in use, storage cavities for storing cooling water are arranged on the three sides of the mounting column. When in use, the heat emitted when the aluminum alloy shells in the two cavities are cooled can be absorbed at the same time, so that the cooling time of the aluminum alloy shell is shortened and the casting production efficiency of the aluminum alloy shell is improved. At the same time, the heat absorbed by the cooling water can be gradually discharged to the outside through the air outlet on the side of the protective shell, so that the cooling efficiency of the cooling water is higher and the service life is longer.

[0018] 2. In the present invention, the outer walls of the first mold, the second mold and the third mold are all polygonal, so when in use, the outer walls of the three molds are in contact with the inner walls of the polygonal mounting grooves, which can make the three molds accurately correspond to each other, and when in use, the outer walls of the three molds are in contact with the inner walls of the mounting grooves, which can make the installation of the three molds more stable, and the second injection holes on the first mold and the third mold cooperate with the first injection holes on both sides of the second mold to form delivery holes, which is convenient for the staff to inject aluminum alloy liquid into the two model grooves.

[0019] 3. The external thread block in the present invention will squeeze the first mold, the second mold and the third mold, making the connection between the three molds tighter, and at the same time can play a better sealing role for the two model grooves, which can prevent the aluminum alloy liquid inside the model groove from overflowing from the gap between the two adjacent molds to the inside of the guide groove when in use. When the staff needs to take the aluminum alloy shell, the protective shell can be lowered to make several support rods push the three molds out of the installation groove in turn, which is convenient for the staff to take the aluminum alloy shell.

[0020] 4. In the present invention, when the staff needs to cast the aluminum alloy liquid, the staff can slowly and quantitatively pour the aluminum alloy liquid into the two feed troughs on the side of the connecting plate, and after entering the conveying pipe through the feed hole on the inner wall of the feed trough, the liquid can be directly slid into the designated model trough through the inner wall of the inclined conveying pipe, which is more convenient to use. When the aluminum alloy liquid is cast, because the pouring speed is relatively slow, the inside of the conveying pipe will not be completely filled and blocked by the aluminum alloy liquid, so that when the aluminum alloy liquid is cast in the model trough, the air inside the model trough will cooperate with the conveying pipe to be discharged to the outside through the first injection hole at the bottom of the second mold and the second injection hole at the bottom of the first mold, and the second injection hole located above and the first injection hole located below are both located above the model trough that cooperates with them, so when in use, it will not affect the shaping of the aluminum alloy shell inside the model trough. When in use, the conveying pipe can both transport the aluminum alloy liquid and discharge the air inside the model trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of an aluminum alloy casting mold for an aluminum alloy housing of a range extender proposed by the present invention;

[0022] Figure 2 A schematic diagram of the bottom structure of a protective shell of an aluminum alloy casting mold for an aluminum alloy housing of a range extender proposed by the present invention;

[0023] Figure 3 A cross-sectional view of a protective shell of an aluminum alloy casting mold for an aluminum alloy housing of a range extender proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the mounting column installation structure of an aluminum alloy casting mold for an aluminum alloy housing of a range extender proposed by the present invention;

[0025] Figure 5 This is a schematic diagram of the support plate structure of an aluminum alloy casting mold for an aluminum alloy housing of a range extender proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of a mounting column of an aluminum alloy casting mold for an aluminum alloy housing of a range extender proposed by the present invention;

[0027] Figure 7 This is a schematic diagram of the model block installation structure of an aluminum alloy casting mold for an aluminum alloy housing of a range extender proposed by the present invention;

[0028] Figure 8 This is a schematic diagram of the top cover structure of an aluminum alloy casting mold for an aluminum alloy shell of a range extender proposed in the present invention.

[0029] In the figure: 1. protective shell; 2. top cover; 3. lifting plate; 4. reinforcement plate; 5. connecting plate; 6. hydraulic cylinder; 7. air outlet; 8. support rod; 9. guide groove; 10. mounting column; 11. feed groove; 12. feed hole; 13. conveying pipe; 14. mounting groove; 15. arc groove; 16. supporting plate; 17. first mold; 18. second mold; 19. third mold; 20. model groove; 21. model block; 22. first injection hole; 23. connecting hole; 24. guide hole; 25. second injection hole; 26. external thread block; 27. fixing hole; 28. guide block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0031] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] Reference Figure 1-8 , an aluminum alloy casting mold for an aluminum alloy shell of a range extender, comprising a protective shell 1, a mounting column 10 is installed at the inner bottom of the protective shell 1, a polygonal mounting groove 14 is opened at the top of the mounting column 10, a third mold 19 is installed at the inner bottom of the mounting groove 14, a second mold 18 is installed at the top of the third mold 19, a first mold 17 is installed at the top of the second mold 18, a model groove 20 is opened at the top of the second mold 18 and the third mold 19, a model block 21 matching the model groove 20 is installed at the bottom of the first mold 17 and the second mold 18, and a support plate 16 is installed on the outer wall of the mounting column 10 near the corner, and the side of the support plate 16 away from the mounting column 10 is installed on the inner wall of the protective shell 1 near the corner.

[0033] As a technical optimization scheme of the present invention, a connecting plate 5 is installed on the side of the protective shell 1, and the sides of the two support plates 16 away from the connecting plate 5 are provided with connecting holes 23 in the length direction, and the tops of several inner walls of the installation groove 14 are provided with mutually matching arc grooves 15, and the inner walls of the arc grooves 15 are provided with threads; when in use, the staff can install the external thread block 26 through the arc grooves 15, which can better limit the position of the external thread block 26, and at the same time, the first mold 17 can be squeezed to make the sealing performance between the first mold 17, the second mold 18 and the third mold 19 better.

[0034] As a technical optimization scheme of the present invention, an external thread block 26 is installed at the inner top of the mounting groove 14, and the bottom end of the external thread block 26 abuts against the top of the first mold 17. The outer wall of the external thread block 26 is meshed with the arc groove 15 through threads. The outer walls of the first mold 17, the second mold 18 and the third mold 19 are all polygons that cooperate with the inner wall of the mounting groove 14. When in use, the outer walls of the first mold 17, the second mold 18 and the third mold 19 abut against the inner wall of the mounting groove 14, which can play a better sealing role when in use.

[0035] As a technical optimization scheme of the present invention, a first injection hole 22 is provided at the top and bottom of the second mold 18 near the connecting plate 5. The first injection hole 22 located at the top is interconnected with the model groove 20 at the top of the second mold 18, and the first injection hole 22 located at the bottom is interconnected with the model groove 20 at the top of the third mold 19. The first mold 17 and the third mold 19 are both provided with a second injection hole 25 that cooperates with the first injection hole 22 on one side near the second mold 18. When in use, the first injection hole 22 and the second injection hole 25 are interconnected and cooperate with each other to inject aluminum alloy liquid into the same model groove 20.

[0036] As a technical optimization scheme of the present invention, two fixing holes 27 matching the two second injection holes 25 are provided on the side of the installation groove 14 close to the connecting plate 5, and funnel-shaped feeding grooves 11 are provided on both sides of the side of the connecting plate 5 away from the protective shell 1, and a feeding hole 12 is provided on the inner wall of the feed groove 11 close to the protective shell 1; when in use, the staff can inject a certain amount of aluminum alloy liquid into the two feed grooves 11 respectively, which is convenient for the staff to inject aluminum alloy liquid into multiple model grooves 20 at the same time.

[0037] As a technical optimization solution of the present invention, two delivery pipes 13 are installed obliquely inside the protective shell 1. The delivery pipes 13 are located between the side of the mounting column 10 close to the connecting plate 5 and the inner wall of the protective shell 1. One end of the delivery pipe 13 is installed inside the fixing hole 27, and the other end passes through the protective shell 1 and is connected to the feed hole 12. When the aluminum alloy liquid enters the interior of the delivery pipe 13, because the delivery pipe 13 is installed obliquely, the aluminum alloy liquid inside the delivery pipe 13 will automatically flow into the interior of the designated model slot 20.

[0038] As a technical optimization scheme of the present invention, guide holes 24 are opened at the inner bottom of the installation groove 14 near several inner walls, and the bottom ends of the guide holes 24 pass through the installation column 10 and the protective shell 1. A support rod 8 is slidably installed in the guide hole 24, and the top end of the support rod 8 abuts against the bottom of the third mold 19, and the bottom end of the support rod 8 passes through the guide hole 24 to the bottom of the protective shell 1; when the staff needs to take the formed aluminum alloy shell, the bottom end of the support rod 8 can be abutted against the ground to move the protective shell 1 downward, and the top ends of several support rods 8 can push the third mold 19, the second mold 18 and the first mold 17 out of the installation groove 14.

[0039] As a technical optimization scheme of the present invention, the three sides of the protective shell 1 away from the connecting plate 5 are provided with air vents 7 in the length direction, and the air vents 7 are located on the top side of the mounting column 10. The top of the external thread block 26 is installed with a top cover 2, and the tops of the protective shell 1 and the mounting column 10 are both in contact with the bottom of the top cover 2; when in use, the staff can rotate the external thread block 26 through the top cover 2, which is convenient for the staff to install and disassemble the external thread block 26, and at the same time, the extrusion force of the external thread block 26 to the first mold 17 can be adjusted through the top cover 2.

[0040] As a technical optimization scheme of the present invention, L-shaped lifting plates 3 are slidably installed on the sides of the protective shell 1 near the corners, and guide grooves 9 are opened in the length direction at the side corners of the protective shell 1. A guide block 28 is slidably installed inside the guide groove 9, and the end of the guide block 28 away from the inner wall of the guide groove 9 is installed on the inner wall of the lifting plate 3; when in use, the staff can adjust the height of the protective shell 1 through the lifting plate 3 so that the top of the support rod 8 is flush with the inner bottom of the installation groove 14, which is convenient for the staff to inject aluminum alloy liquid into the interior of the model groove 20.

[0041] As a technical optimization scheme of the present invention, reinforcement plates 4 are installed on the four sides of the protective shell 1, and the two ends of the reinforcement plates 4 are respectively installed on the opposite surfaces of the top ends of the two adjacent lifting plates 3. Hydraulic cylinders 6 are installed on both sides of the protective shell 1 below the air outlet 7, and the bottom end of the piston rod of the hydraulic cylinder 6 is installed on the top of the reinforcement plate 4; the hydraulic cylinder 6 can drive several lifting plates 3 to move on the side of the protective shell 1 through the reinforcement plate 4, and adjust the height of the protective shell 1 at the same time. When the protective shell 1 moves, the ground squeezes the support rod 8, so that the top of the support rod 8 pushes the third mold 19, the second mold 18 and the first mold 17 to move upward.

[0042] When the present invention is in use, the staff puts the third mold 19, the second mold 18 and the first mold 17 in the installation groove 14 at the top of the installation column 10 in sequence. When in use, the outer walls of the first mold 17, the second mold 18 and the third mold 19 are all polygonal, so when in use, the outer walls of the three molds are in contact with the inner wall of the polygonal installation groove 14. When the staff installs the three molds, the three molds can be accurately matched, and the outer walls of the three molds are in contact with the inner wall of the installation groove 14 when in use, which can make the installation of the three molds more stable when in use. When in use, the outer wall of the installation column 10 is connected and supported by four support plates 16, and the four support plates 16 can divide the space between the installation column 10 and the inner wall of the protective shell 1 into four storage chambers when in use. When in use, the staff stores a certain amount of cooling water in the three storage chambers away from the connection plate 5, and the water level of the cooling water is lower than the height of the air outlet 7.

[0043] The staff installs the external thread block 26 on the inner top of the installation groove 14 through the top cover 2, and the outer wall thread of the external thread block 26 is installed inside the arc groove 15. When in use, the staff rotates the top cover 2, and drives the external thread block 26 to rotate on the inner top of the installation groove 14 through the top cover 2. Because the external thread block 26 is threadedly connected to the inner wall of the arc groove 15, when the external thread block 26 rotates, it will move downward in the direction of the first mold 17 until the bottom end of the external thread block 26 abuts against the top of the first mold 17. When in use, the external thread block 26 will squeeze the first mold 17, the second mold 18 and the third mold 19, making the connection between the three molds tighter, and at the same time can play a better sealing role for the two model grooves 20.

[0044] When in use, the staff pushes the reinforcement plate 4 downward through the hydraulic cylinder 6, and the reinforcement plate 4 can drive the four lifting plates 3 to slide down near the corners of the side of the protective shell 1. Because the lifting plates 3 are in contact with the ground, when the lifting plates 3 slide down the side of the protective shell 1, the protective shell 1 can move up so that the bottom end of the protective shell 1 is above the ground. When in use, the staff inserts the support rods 8 into the several guide holes 24 located at the bottom of the protective shell 1, and pushes the bottom end of the support rod 8 at the same time, so that the bottom end of the support rod 8 is in contact with the bottom of the third mold 19.

[0045] When the staff needs to cast the aluminum alloy liquid, the staff can pour the aluminum alloy liquid quantitatively into the two feed slots 11 on the side of the connecting plate 5, and the aluminum alloy liquid entering the feed slot 11 flows into the inside of the delivery pipe 13 through the feed hole 12. When in use, because the delivery pipe 13 is installed at an angle, the aluminum alloy liquid will enter the inside of the model slot 20 along the delivery hole of the first injection hole 22 and the second injection hole 25 on the inner wall of the delivery pipe 13. When in use, the model slot 20 cooperates with the model block 21 located therein, so that the space between the inner wall of the model slot 20 and the model block 21 forms a cavity in the shape of the range extender aluminum alloy shell, and the aluminum alloy liquid will gradually cool after being injected into the cavity, so that the aluminum alloy liquid forms a complete range extender aluminum alloy shell.

[0046] When the aluminum alloy liquid injected into the model slot 20 is cooled, the heat emitted by the aluminum alloy liquid during cooling will be absorbed by the mounting column 10 after heat transfer through the three molds. When in use, the cooling water inside the three storage chambers will quickly absorb the heat emitted by the mounting column 10, so that the aluminum alloy liquid inside the two model slots 20 is quickly cooled. When the aluminum alloy liquid is cast for the aluminum alloy shell, the cooling time is faster, thereby improving the casting production efficiency of the aluminum alloy shell, and multiple aluminum alloy shells can be cast for production when in use.

[0047] When the staff takes the cooled aluminum alloy shell, the staff rotates the top cover 2, and the top cover 2 drives the external thread block 26 to move out of the installation groove 14, and pulls the reinforcement plate 4 and the lifting plate 3 to move up on the side of the protective shell 1 through the hydraulic cylinder 6. When the lifting plate 3 moves up, the protective shell 1 will gradually descend toward the ground. At the same time, when the protective shell 1 moves down, the ground will push the bottom ends of several support rods 8, so that the support rods 8 slide inside the guide hole 24 toward the inside of the installation groove 14. When in use, the top ends of several support rods 8 will push the third mold 19, the second mold 18 and the first mold 17 to move up in the installation groove 14 in turn until the first mold 17 moves out of the installation groove 14. After the staff disassembles the first mold 17, the aluminum alloy shell inside the top mold groove 20 of the second mold 18 can be taken. When the staff has finished taking the aluminum alloy shell on the second mold 18, the protective shell 1 can be moved down again by the hydraulic cylinder 6, so that the support rod 8 pushes the third mold 19 again until the second mold 18 moves out of the installation groove 14. After the staff has finished dismantling the second mold 18, they can take the aluminum alloy shell inside the top model groove 20 of the third mold 19.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An aluminum alloy casting mold for an aluminum alloy housing of a range extender, comprising a protective shell (1), characterized in that: The protective shell (1) is provided with a mounting column (10) at the inner bottom, a polygonal mounting groove (14) is provided at the top of the mounting column (10), a third mold (19) is provided at the inner bottom of the mounting groove (14), a second mold (18) is provided at the top of the third mold (19), a first mold (17) is provided at the top of the second mold (18), a model groove (20) is provided at the top of the second mold (18) and the third mold (19), a model block (21) matching the model groove (20) is provided at the bottom of the first mold (17) and the second mold (18), a support plate (16) is provided at a position close to the corner on the outer wall of the mounting column (10), and a side of the support plate (16) away from the mounting column (10) is provided on the inner wall of the protective shell (1) close to the corner; A connecting plate (5) is installed on the side of the protective shell (1), and the sides of the two support plates (16) away from the connecting plate (5) are provided with connecting holes (23) in the length direction, and the tops of the inner walls of the mounting grooves (14) are provided with arc grooves (15) that match each other, and the inner walls of the arc grooves (15) are provided with threads; An external thread block (26) is installed at the inner top of the installation groove (14), the bottom end of the external thread block (26) abuts against the top of the first mold (17), the outer wall of the external thread block (26) and the arc groove (15) are meshed and connected with each other through threads, and the outer walls of the first mold (17), the second mold (18) and the third mold (19) are all polygonal and match the inner wall of the installation groove (14); The second mold (18) is provided with a first injection hole (22) at the top and at one end of the bottom close to the connecting plate (5); the first injection hole (22) located at the top is communicated with the mold groove (20) at the top of the second mold (18); the first injection hole (22) located at the bottom is communicated with the mold groove (20) at the top of the third mold (19); and the first mold (17) and the third mold (19) are provided with a second injection hole (25) that cooperates with the first injection hole (22) at one side close to the second mold (18); The mounting groove (14) is provided with two fixing holes (27) on a side close to the connecting plate (5) and matched with the two second injection holes (25) respectively; a funnel-shaped feed groove (11) is provided on both sides of a side of the connecting plate (5) away from the protective shell (1); a feed hole (12) is provided on the inner wall of a side of the feed groove (11) close to the protective shell (1); Two conveying pipes (13) are obliquely installed inside the protective shell (1), and the conveying pipes (13) are located between a side of the mounting column (10) close to the connecting plate (5) and the inner wall of the protective shell (1), one end of the conveying pipe (13) is installed inside the fixing hole (27), and the other end passes through the protective shell (1) and is connected to the feed hole (12); The inner bottom of the installation groove (14) is provided with guide holes (24) at positions near the inner walls. The bottom ends of the guide holes (24) penetrate the installation column (10) and the protective shell (1). A support rod (8) is slidably installed in the guide holes (24). The top end of the support rod (8) abuts against the bottom of the third mold (19), and the bottom end of the support rod (8) penetrates the guide holes (24) to the bottom of the protective shell (1).

2. The aluminum alloy casting mold for the range extender aluminum alloy housing according to claim 1, characterized in that: The three side surfaces of the protective shell (1) away from the connecting plate (5) are provided with air outlet holes (7) in the length direction. The air outlet holes (7) are located on the top side surfaces of the mounting column (10). A top cover (2) is installed on the top of the external thread block (26). The top ends of the protective shell (1) and the mounting column (10) are in contact with the bottom of the top cover (2).

3. The aluminum alloy casting mold for the range extender aluminum alloy housing according to claim 2, characterized in that: An L-shaped lifting plate (3) is slidably mounted on the side of the protective shell (1) near the corner, and a guide groove (9) is provided at the side corner of the protective shell (1) in the length direction. A guide block (28) is slidably mounted inside the guide groove (9), and one end of the guide block (28) away from the inner wall of the guide groove (9) is mounted on the inner wall of the lifting plate (3).

4. The aluminum alloy casting mold for the range extender aluminum alloy housing according to claim 3, characterized in that: Reinforcement plates (4) are installed on the four sides of the protective shell (1), and the two ends of the reinforcement plates (4) are respectively installed on the top opposite surfaces of two adjacent lifting plates (3). Hydraulic cylinders (6) are installed on both sides of the protective shell (1) below the air outlet (7), and the bottom end of the piston rod of the hydraulic cylinder (6) is installed on the top of the reinforcement plate (4).

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