Casting device for new energy city bus full-aluminum alloy chassis
By using a limiting structure and lifting design, the problems of stable limiting and quick removal of aluminum alloy plates are solved, the replacement of the lower mold is simplified, and the production efficiency of all-aluminum alloy chassis for new energy city buses is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HONGAO AUTOMOBILE LIGHTWEIGHT TECH CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-06-19
AI Technical Summary
Existing casting devices for all-aluminum alloy chassis of new energy city buses have shortcomings in terms of stabilizing and limiting aluminum alloy plates and quickly removing the stamped chassis, and the lower mold is inconvenient to replace.
The design incorporates a limiting structure, connecting columns, and adjusting plates. It uses a negative pressure pump to extract air and limit the aluminum alloy plate, combined with a lifting structure and connecting lug design, to achieve quick removal of the chassis and convenient replacement of the lower mold.
It achieves stable positioning and rapid removal of aluminum alloy sheets, reduces operational difficulty, improves work efficiency, and simplifies the process of changing the lower mold.
Smart Images

Figure CN224372736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of all-aluminum alloy chassis for new energy city buses, specifically a casting device for all-aluminum alloy chassis of new energy city buses. Background Technology
[0002] The use of new energy city buses is becoming increasingly widespread, and the all-aluminum alloy chassis is an important component of new energy city buses. The production of aluminum alloy chassis requires casting equipment, and there are many types of casting equipment on the market to meet different needs.
[0003] For example, utility model patent CN220092705U discloses an automobile chassis stamping device, which includes a main body. Pre-drilled openings are provided on both the left and right sides of the main body. A support frame is fixedly connected to the right side surface of the main body near the bottom edge. A motor is fixedly connected to the upper surface of the support frame. The output end of the motor extends into the interior of the main body and is fixedly connected to a lead screw. The other end of the lead screw is rotatably connected to the left inner surface of the main body via a bearing. A moving block is threaded onto the surface of the lead screw, and a worktable is fixedly connected to the upper surface of the moving block. With this structure, by setting a motor to drive the lead screw to move the worktable and the lower die, the manual loading and unloading operations can be effectively replaced. This not only reduces the labor intensity of workers but also minimizes worker contact with parts during stamping, effectively reducing the probability of workplace accidents.
[0004] Based on existing solutions and actual production and processing applications, current casting devices for all-aluminum alloy chassis of new energy city buses still have some problems. For example, aluminum alloy sheets are adsorbed using components such as suction cups, negative pressure pumps, and pipes, but the limited number of suction cups affects the stability of the aluminum alloy sheets. Furthermore, when the aluminum alloy sheets are stamped into chassis, they need to be manually removed by workers, increasing the difficulty and reducing work efficiency. Additionally, the lower mold is fixed in place, making disassembly troublesome if the lower mold is damaged. Therefore, we propose a casting device for all-aluminum alloy chassis of new energy city buses to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a casting device for all-aluminum alloy chassis of new energy city buses, so as to solve the problems mentioned in the background art that the existing casting devices for all-aluminum alloy chassis of new energy city buses are not convenient for stably limiting the aluminum alloy plates, and are not convenient for quickly removing the stamped chassis, and are not easy to replace the lower mold.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a casting device for an all-aluminum alloy chassis of a new energy city bus, comprising a main body and a cylinder bolted to its top for lifting, wherein an upper mold is bolted to the lower end of the cylinder, and a lower mold is provided on the lower side of the upper mold.
[0007] Also includes:
[0008] The lower mold is provided with a limit structure, and a connecting column is engaged and connected in the middle position of the lower mold. The lower middle end of the connecting column is nested and connected to the inside of the box, and the bottom end of the connecting column is integrally connected to the upper end of the adjustment plate.
[0009] The upper end of the box is symmetrically inlaid with connecting ears, and the connecting rod is nested in the hollow structure of the connecting ears. The connecting rod is symmetrically fixed to the lower end of the lower mold.
[0010] Preferably, the lower end of the connecting rod is threaded with a round cap.
[0011] Preferably, the limiting structure includes a cavity, a connecting hole, a connecting pipe, and a negative pressure pump. The cavity is located inside the lower mold, and the top of the cavity has evenly spaced connecting holes. The right end of the cavity is fixedly connected to a connecting pipe, and the right end of the connecting pipe is bolted to a negative pressure pump.
[0012] Preferably, the connecting hole is connected to the connecting pipe through a cavity.
[0013] Preferably, both ends of the adjusting plate are slidably connected to the inside of the long groove, and the long groove is symmetrically opened on the inner wall of the box. The front and rear ends of the adjusting plate are symmetrically rotatably connected to the connecting strip.
[0014] Preferably, the lower end of the connecting strip is rotatably connected to the upper end of the adjusting block, and the adjusting block is symmetrically threaded onto the adjusting rod.
[0015] Preferably, the adjusting rod is rotatably connected to the lower end of the housing, and a motor is installed at the right end of the adjusting rod, while the threads at the left and right ends of the adjusting rod run in opposite directions.
[0016] Preferably, the connecting column has a lifting structure on the lower mold via an adjusting rod and a connecting strip.
[0017] Preferably, the main body has reserved openings on both the left and right walls, and an electric telescopic rod is bolted to the lower right end of the main body. The left end of the electric telescopic rod is installed at the middle of the right end of the support plate, and the support plate is embedded in the bottom end of the box.
[0018] Preferably, guide rods are connected through both the front and rear ends of the support plate, and the guide rods are fixedly connected to the lower interior of the main body.
[0019] Compared with the prior art, the beneficial effects of this utility model are: the casting device for the all-aluminum alloy chassis of the new energy city bus is convenient for stably limiting the aluminum alloy sheet, and also facilitates quick removal of the stamped chassis, while making it easy to replace the lower mold.
[0020] 1. It is equipped with a lower mold and a limiting structure. The connecting hole is connected to the connecting pipe through the cavity, so that when the aluminum alloy sheet is placed on the upper end of the lower mold;
[0021] The gas between the aluminum alloy sheet and the connecting hole is extracted through the connecting tube, allowing the aluminum alloy sheet to be adsorbed onto the upper end of the connecting hole, thus facilitating stable positioning of the aluminum alloy sheet.
[0022] 2. It is equipped with a connecting column and an adjusting plate. The connecting column, through the structural design of the adjusting rod and connecting strip on the lower mold, enables the adjusting rod to rotate and drive the adjusting plate to rise through the connecting strip;
[0023] The adjusting plate moves the connecting column upward inside the lower mold, pushing the base plate out of the lower mold, thus facilitating the quick removal of the stamped base plate;
[0024] 3. It is equipped with a connecting rod and a connecting lug. The lower end of the connecting rod is threaded with a round cover. When the round cover is detached from the connecting rod, the lower mold is pulled upward to disengage the connecting rod from the hollow structure of the connecting lug, making it easy to replace the lower mold. Attached Figure Description
[0025] Figure 1 This is a frontal cross-sectional view of the present invention.
[0026] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of the present invention;
[0027] Figure 3 This is a front view cross-sectional structural diagram of the connection between the connecting strip and the adjusting block of this utility model;
[0028] Figure 4 This is a schematic diagram of the overall structure of the connection between the support plate and the guide rod of this utility model;
[0029] Figure 5 This is a schematic diagram of the overall structure of the lower mold and the connecting hole of this utility model;
[0030] Figure 6 This is a schematic diagram of the overall structure of the connection between the connecting rod and the connecting ear of this utility model.
[0031] In the diagram: 1. Main body; 2. Cylinder; 3. Upper mold; 4. Lower mold; 5. Reserved opening; 6. Connecting rod; 7. Connecting ear; 8. Round cover; 9. Limiting structure; 901. Cavity; 902. Connecting hole; 903. Connecting pipe; 904. Negative pressure pump; 10. Box body; 11. Adjusting rod; 12. Motor; 13. Adjusting block; 14. Connecting strip; 15. Adjusting plate; 16. Long groove; 17. Connecting column; 18. Support plate; 19. Electric telescopic rod; 20. Guide rod. Detailed Implementation
[0032] 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.
[0033] Please see Figure 1-6 This utility model provides a technical solution: a casting device for an all-aluminum alloy chassis of a new energy city bus, including a main body 1, a cylinder 2, an upper mold 3, a lower mold 4, a reserved opening 5, a connecting rod 6, a connecting ear 7, a round cover 8, a limiting structure 9, a box body 10, an adjusting rod 11, a motor 12, an adjusting block 13, a connecting strip 14, an adjusting plate 15, a long groove 16, a connecting column 17, a support plate 18, an electric telescopic rod 19, and a guide rod 20.
[0034] Example: Existing methods use suction cup assemblies, a 904 negative pressure pump, and pipes to adsorb aluminum alloy sheets. However, the limited number of suction cups affects the stability of the aluminum alloy sheets. Therefore, this example uses the following technical solution: Figure 1 , Figure 2 and Figure 5 Since the top of the cavity 901 is evenly provided with connection holes 902, the connection holes 902 are connected to the connecting pipe 903 through the cavity 901.
[0035] Therefore, when the lower mold 4 moves into the reserved opening 5 on the left, the staff places the aluminum alloy plate on the top of the lower mold 4. When the negative pressure pump 904 is working, it extracts the gas in the cavity 901 through the connecting pipe 903. The gas between the top of the lower mold 4 and the aluminum alloy plate enters the cavity 901 through the evenly arranged connecting holes 902. After all the gas is discharged, the aluminum alloy plate is firmly adsorbed on the top of the lower mold 4, which facilitates stable positioning of the aluminum alloy plate.
[0036] When stamping aluminum alloy sheets into a base, manual removal by workers is required, increasing difficulty and reducing work efficiency. Therefore, this embodiment adopts the following technical solution, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 Since the connecting column 17 is engaged and connected in the middle of the lower mold 4, and the threads of the left and right ends of the adjusting rod 11 are opposite, the connecting column 17 is in a lifting structure on the lower mold 4 through the adjusting rod 11 and the connecting strip 14.
[0037] Therefore, when the lower mold 4 moves the aluminum alloy sheet to the lower side of the upper mold 3, the cylinder 2 works to drive the upper mold 3 to descend and stamp the aluminum alloy sheet. After the stamping is completed, the electric telescopic rod 19 works to push the box 10 to the left, and the support plate 18 slides to the left on the guide rods 20 that are symmetrically arranged at the front and rear, until the lower mold 4 enters the reserved opening 5 on the left side.
[0038] When the motor 12 is working, it drives the adjusting rod 11 to rotate inside the housing 10. When the adjusting rod 11 rotates, it causes the adjusting blocks 13, which are symmetrically arranged on the left and right, to slide inward. This causes the connecting bar 14 to drive the adjusting plate 15 to slide upward inside the long groove 16, so that the adjusting plate 15 drives the connecting column 17 to rise. This causes the connecting column 17 to push out the chassis inside the lower mold 4, thus making it easy to quickly remove the stamped chassis.
[0039] The existing lower mold 4 is fixedly connected, making disassembly difficult when the lower mold 4 is damaged. Therefore, this embodiment adopts the following technical solution, such as... Figure 2 , Figure 4 and Figure 6 Since the connecting rod 6 is nested in the hollow structure of the connecting ear 7, the lower end of the connecting rod 6 is threaded with a round cover 8, and the front and rear ends of the support plate 18 are both connected with guide rods 20.
[0040] Therefore, when it is necessary to replace the lower mold 4, the box 10 is moved to the inside of the left reserved opening 5 by means of the electric telescopic rod 19, the support plate 18 and the guide rod 20, and the front and rear round covers 8 are rotated respectively to detach them from the lower end of the connecting rod 6.
[0041] Pull the lower mold 4 upward to disengage the symmetrically arranged connecting rods 6 from the hollow joints of the corresponding connecting ears 7, and remove the lower mold 4 from the housing 10, making it easy to replace the lower mold 4. All electrical components mentioned above are existing technologies and will not be described in detail here.
[0042] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A casting device for an all-aluminum alloy chassis of a new energy city bus, comprising a main body (1) and a cylinder (2) bolted to its top for lifting, wherein an upper mold (3) is bolted to the lower end of the cylinder (2), and a lower mold (4) is provided on the lower side of the upper mold (3). Its features are, Also includes: The lower mold (4) is provided with a limiting structure (9), and a connecting column (17) is engaged and connected in the middle position inside the lower mold (4). The lower middle end of the connecting column (17) is nested and connected inside the box (10), and the bottom end of the connecting column (17) is integrally connected to the upper end of the adjusting plate (15). The upper end of the box (10) is symmetrically inlaid with connecting ears (7), and the connecting rod (6) is nested in the hollow structure of the connecting ears (7), and the connecting rod (6) is symmetrically fixedly connected to the lower end of the lower mold (4).
2. The casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 1, characterized in that: The lower end of the connecting rod (6) is threaded with a round cap (8).
3. The casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 1, characterized in that: The limiting structure (9) includes a cavity (901), a connecting hole (902), a connecting pipe (903), and a negative pressure pump (904). The cavity (901) is located inside the lower mold (4), and the top of the cavity (901) is uniformly provided with connecting holes (902). The right end of the cavity (901) is fixedly connected to the connecting pipe (903), and the right end of the connecting pipe (903) is bolted to the negative pressure pump (904).
4. The casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 3, characterized in that: The connecting hole (902) is connected to the connecting pipe (903) through the cavity (901).
5. The casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 1, characterized in that: The left and right ends of the adjustment plate (15) are slidably connected to the inside of the long groove (16), and the long groove (16) is symmetrically opened on the inner wall of the box (10). The front and rear ends of the adjustment plate (15) are symmetrically rotatably connected to the connecting strip (14).
6. The casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 5, characterized in that: The lower end of the connecting strip (14) is rotatably connected to the upper end of the adjusting block (13), and the adjusting block (13) is symmetrically threaded to the adjusting rod (11).
7. A casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 6, characterized in that: The adjusting rod (11) is rotatably connected to the lower end of the housing (10), and a motor (12) is installed on the right end of the adjusting rod (11). At the same time, the threads of the left and right ends of the adjusting rod (11) are opposite.
8. The casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 1, characterized in that: The connecting column (17) is in a lifting structure on the lower mold (4) via the adjusting rod (11) and the connecting strip (14).
9. A casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 1, characterized in that: The main body (1) has reserved openings (5) on both the left and right walls, and an electric telescopic rod (19) is bolted to the lower right end of the main body (1). The left end of the electric telescopic rod (19) is installed in the middle of the right end of the support plate (18), and the support plate (18) is embedded in the bottom end of the box (10).
10. A casting device for an all-aluminum alloy chassis of a new energy city bus according to claim 9, characterized in that: The front and rear ends of the support plate (18) are both connected to guide rods (20), and the guide rods (20) are fixedly connected to the lower interior of the main body (1).