Alloy propeller gravity casting mold

Abstract

The utility model relates to gravity casting mould technical field discloses an alloy propeller gravity casting mould, including base, the base top fixedly connected with casting table, the casting table inner wall is provided with upper cover, the casting table inner wall fixedly connected with hydraulic cylinder, the hydraulic cylinder output fixedly connected with fixed block, the casting table inner wall fixedly connected with two slide bars, the slide bar outer wall slidingly connected with two sliding plates, the fixed block outer wall fixed connection in the sliding plate outer wall, wherein one of the sliding plate left side fixedly connected with upper rack. In the utility model, hydraulic cylinder drive sliding plate along slide bar sliding, and the meshing between transmission gear rotation and rack can realize that the sliding plate is with top clamping plate and is centered and clamped, not only can clamp the product of article groove, but also can be freely adjusted according to the size required by product, need not to change the equipment directly, more flexible and cost -effective.

Description

Technical Field

[0001] This utility model relates to the field of gravity casting mold technology, and in particular to a gravity casting mold for an alloy propeller. Background Technology

[0002] In the fields of shipbuilding, aerospace and high-end equipment manufacturing, alloy propellers, as the core components of power transmission, have extremely high requirements for material uniformity, structural strength and dimensional accuracy. Therefore, gravity casting molds specifically designed for alloy propeller forming have gradually developed and become key equipment for solving the problem of mass production of high-quality propellers. Most existing mold technologies use fixed model structures. Their main function is to precisely replicate the complex geometry of a propeller through a customized cavity structure, ensuring that key parameters such as blade shape and pitch meet design standards, reducing internal defects in castings, and enhancing the propeller's mechanical performance. Simultaneously, as a reusable molding equipment, it enables the standardization and mass production of alloy propellers, reducing unit manufacturing costs and providing core process assurance for the stable operation of power systems in the marine and aerospace industries. Existing casting molds generally adopt an integrated fixed structure design, which not only makes it difficult to flexibly adapt and adjust to the size differences or complex shapes of products of different specifications, but also results in a set of molds only being able to correspond to a single model of product, significantly increasing the mold investment cost for multi-category production. At the same time, the core module components of the mold are mostly connected to the main frame by welding and bolt fastening in a non-removable manner. When the module wears out or needs to be replaced for a new product mold, the entire mold needs to be disassembled or even remanufactured, which is not only costly, but also prone to damage to the main structure of the mold during the disassembly process. To address these issues, an alloy propeller gravity casting mold is proposed. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an alloy propeller gravity casting mold, which aims to improve the problems of existing casting molds that generally adopt an integrated fixed structure design, making it difficult to flexibly adapt and adjust to the size differences or complex shapes of products of different specifications, and the high cost of disassembling or even remanufacturing the entire mold when the module is worn or needs to be replaced for a new product, and which are prone to damage to the main structure of the mold.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an alloy propeller gravity casting mold, comprising a base, a casting platform fixedly connected to the top of the base, a top cover provided on the inner wall of the casting platform, a hydraulic cylinder fixedly connected to the inner wall of the casting platform, a fixing block fixedly connected to the output end of the hydraulic cylinder, two sliding bars fixedly connected to the inner wall of the casting platform, two sliding plates slidably connected to the outer wall of the sliding bars, the outer wall of the fixing block fixedly connected to the outer wall of the sliding plates, an upper rack fixedly connected to the left side of one sliding plate, a lower rack fixedly connected to the right side of the other sliding plate, a gear rotatably connected to the inner wall of the casting platform, a fixing plate fixedly connected to the top of the sliding plates, and a clamping plate fixedly connected to the top of the fixing plate; As a further description of the above technical solution: A shelf is installed on the top of the cover. Multiple blocks are fixedly connected to the top of the shelf. A bracket is fixedly connected to the outer wall of the block. A pin is slidably connected to the inner wall of the bracket. A spring is sleeved on the outer wall of the pin. Two locking blocks are fixedly connected to the outer wall of the pin. The locking blocks engage with the cover. As a further description of the above technical solution: The gear meshes with the upper rack, and the gear meshes with the lower rack; As a further description of the above technical solution: One end of the spring is fixedly connected to the inner wall of the bracket, and the other end of the spring is fixedly connected to the inner wall of the stop block; As a further description of the above technical solution: The pin is slidably connected to the inner wall of the stop block, and the pin is slidably connected to the inner wall of the upper cover; As a further description of the above technical solution: The storage platform has a storage slot inside, and the outer wall of the clamp is slidably connected to the inner wall of the upper cover; As a further description of the above technical solution: The casting platform is fixedly connected to a pouring port on its outer wall. As a further description of the above technical solution: A handle is fixedly connected to the top of the pin.

[0005] This utility model has the following beneficial effects: 1. In this utility model, the hydraulic cylinder drives the slide plate to slide along the slide bar, and the transmission gear rotates and meshes with the rack, which can realize the slide plate with the top clamping plate to be centered and clamped. It can not only clamp the products in the storage slot, but also can be freely adjusted according to the required size of the products. There is no need to directly replace the equipment, which is more flexible and saves costs.

[0006] 2. In this utility model, the structure utilizes the combined force of the spring, bracket, and stop block. The spring provides elastic driving force, and the bracket guides the pin. Simply turning the handle can quickly separate or engage the locking block on the pin with the top cover without the need for complicated tools. This design enables the quick assembly and disassembly of the storage module, efficiently solving the efficiency problem when replacing damaged modules or adjusting their shape. It also avoids damage to the structure caused by hard disassembly and assembly, thus balancing convenience and protection. Attached Figure Description

[0007] Figure 1 This is a first-view perspective perspective view of a gravity casting mold for an alloy propeller proposed in this utility model. Figure 2 This is a schematic diagram of the gear structure of a gravity casting mold for an alloy propeller proposed in this utility model; Figure 3 This is a schematic diagram of the structure of the upper cover of an alloy propeller gravity casting mold proposed in this utility model; Figure 4 This is a schematic diagram of the pin structure of a gravity casting mold for an alloy propeller proposed in this utility model.

[0008] Legend: 1. Base; 2. Casting table; 3. Hydraulic cylinder; 4. Top cover; 5. Handle; 6. Storage platform; 7. Clamping plate; 8. Pour gate; 9. Stop block; 10. Storage slot; 11. Fixing block; 12. Fixing plate; 13. Slide plate; 14. Slide bar; 15. Gear; 16. Upper rack; 17. Spring; 18. Locking block; 19. Pin; 20. Bracket; 21. Lower rack. Detailed Implementation

[0009] 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.

[0010] Reference Figures 1-2This utility model provides an embodiment of a gravity casting mold for an alloy propeller, comprising a base 1, which is cast from a high-strength alloy material. A casting platform 2 is fixedly connected to the top of the base 1. A top cover 4 is provided on the inner wall of the casting platform 2. A hydraulic cylinder 3 is fixedly connected to the inner wall of the casting platform 2. A fixing block 11 is fixedly connected to the output end of the hydraulic cylinder 3. Two sliding bars 14 are fixedly connected to the inner wall of the casting platform 2. Two sliding plates 13 are slidably connected to the outer wall of the sliding bars 14. The outer wall of the fixing block 11 is fixedly connected to the outer wall of the sliding plates 13. An upper rack 16 is fixedly connected to the left side of one sliding plate 13, and a lower rack 21 is fixedly connected to the right side of the other sliding plate 13. A gear 15 is rotatably connected to the inner wall of the casting platform 2. A fixing plate 12 is fixedly connected to the top of the sliding plate 13, and a clamping plate 7 is fixedly connected to the top of the fixing plate 12. When the hydraulic cylinder 3 drives the fixing block 11 to move forward, it will synchronously drive the connected sliding plate 13 along the sliding bars. 14. Smooth sliding: Since the upper rack 16 and lower rack 21 are fixedly connected to the opposite sides of the two slide plates 13 respectively, and the two simultaneously form precise meshing with the gear 15 in the middle, this transmission structure will convert the driving force in one direction into bidirectional synchronous motion. When one slide plate 13 moves forward, through the linkage of the gear 15, the other slide plate 13 will move in the opposite direction in sync, so that the two slide plates 13 form a symmetrical reciprocating motion. This linkage mechanism drives the fixed plate 12 and clamping plate 7 at the top of the slide plate 13 to move closer to each other in sync along the inner wall of the upper cover 4. The clamping plate 7 will gradually fit against the surface of the product until a uniform and stable clamping force is formed, ensuring that the product remains absolutely fixed during the casting process. If it is necessary to release the product, simply control the hydraulic cylinder 3 to run in the opposite direction, and the transmission mechanism will drive the clamping plate 7 to separate in the opposite direction in sync, achieving rapid release. This design can fix the mold according to the size-to-width ratio of the cast product.

[0011] Reference Figure 1 , Figure 3 and Figure 4 The top of the cover 4 is equipped with a shelf 6, which forms a stable load-bearing fit. Multiple blocks 9 are fixedly connected to the top of the shelf 6, which serve as both limiting positions and mounting bases for functional components. A bracket 20 is fixedly connected to the outer wall of the block 9, and a pin 19 is slidably connected to the inner wall of the bracket 20. The inner wall of the bracket 20 and the pin 19 form a sliding fit, ensuring that the pin 19 can only move smoothly along the axial direction. A spring 17 is sleeved on the outer wall of the pin 19, and two locking blocks 18 are fixedly connected to the outer wall of the pin 19. The locking blocks 18 are engaged with the top cover 4. By utilizing the force generated by the spring 17, the bracket 20, and the blocks 9, the locking blocks 18 can be quickly separated and engaged with the top cover 4. This multi-set symmetrically distributed engaging structure can firmly lock the shelf 6 onto the top cover 4, while providing a reliable structural foundation for quick assembly and disassembly.

[0012] Reference Figure 2The gear 15 meshes with the upper rack 16 and the gear 15 meshes with the lower rack 21, which facilitates reciprocating motion and effectively clamps and releases the casting product.

[0013] Reference Figures 3-4 One end of the spring 17 is fixedly connected to the inner wall of the bracket 20, and the other end of the spring 17 is fixedly connected to the inner wall of the stop block 9. The spring 17, the bracket 20 and the stop block 9 generate forces with each other, which can drive the spring 17 to achieve elastic force, effectively improving the disassembly and assembly efficiency.

[0014] Reference Figures 3-4 The pin 19 is slidably connected to the inner wall of the stop 9 and the inner wall of the upper cover 4, which effectively improves the efficiency of disassembly and assembly, making it convenient, quick, time-saving and labor-saving.

[0015] Reference Figure 1 The storage platform 6 has a storage slot 10 inside, which is convenient for placing shaped products. The outer wall of the clamp 7 is slidably connected to the inner wall of the upper cover 4, which is convenient for fixing the products and makes them more aesthetically pleasing.

[0016] Reference Figure 1 The casting table 2 has a fixed pouring port 8 on its outer wall, which can efficiently guide the molten metal into the mold cavity and provide a reliable guarantee for casting.

[0017] Reference Figure 1 , Figure 3 and Figure 4 The top of the pin 19 is fixedly connected to a handle 5, which simplifies the operation process and allows the storage module to be disassembled and assembled without additional tools, and can be easily completed with just hand movements.

[0018] Working principle: First, place the product to be fixed into the storage slot 10 of the storage platform 6. Start the hydraulic cylinder 3. When the driving block 11 moves forward, it will drive the slide plate 13 to slide synchronously along the slide bar 14. Since the two slide plates 13 are connected to the upper rack 16 and the lower rack 21 on opposite sides respectively, and the two are meshed with the gear 15, the two slide plates 13 can make relative reciprocating motion, which in turn drives the clamping plate 7 on the top fixing plate 12 of the slide plate 13 to make relative clamping action along the inner wall of the upper cover 4 until the product is firmly clamped. The reverse operation can release the product. When the storage platform 6 is damaged or needs to be changed, turn the handle 5. With the help of the spring 17 and the force of the bracket 20 and the stop block 9, the locking block 18 on the pin 19 can be separated from the upper cover 4 to achieve quick disassembly. When installing a new module, press the pin 19 and turn the handle 5 at the same time. When the locking block 18 is engaged with the upper cover 4, the installation can be completed conveniently. The alloy liquid is guided into the cavity through the pouring port 8, which can expel gas and fill the cavity in an orderly manner.

[0019] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A gravity casting mold for an alloy propeller, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the casting table (2), the inner wall of the casting table (2) is provided with a top cover (4), the inner wall of the casting table (2) is fixedly connected to the hydraulic cylinder (3), the output end of the hydraulic cylinder (3) is fixedly connected to the fixing block (11), the inner wall of the casting table (2) is fixedly connected to two slide bars (14), the outer wall of the slide bars (14) is slidably connected to two slide plates (13), the outer wall of the fixing block (11) is fixedly connected to the outer wall of the slide plate (13), one of the slide plates (13) is fixedly connected to the left side of the upper rack (16), the other slide plate (13) is fixedly connected to the right side of the lower rack (21), the inner wall of the casting table (2) is rotatably connected to a gear (15), the top of the slide plate (13) is fixedly connected to a fixing plate (12), and the top of the fixing plate (12) is fixedly connected to a clamping plate (7).

2. The gravity casting mold for an alloy propeller according to claim 1, characterized in that: The top of the cover (4) is equipped with a shelf (6), and the top of the shelf (6) is fixedly connected with multiple blocks (9). The outer wall of the block (9) is fixedly connected with a bracket (20). The inner wall of the bracket (20) is slidably connected with a pin (19). The outer wall of the pin (19) is fitted with a spring (17). The outer wall of the pin (19) is fixedly connected with two locking blocks (18). The locking blocks (18) are engaged with the top cover (4).

3. The gravity casting mold for an alloy propeller according to claim 1, characterized in that: The gear (15) meshes with the upper rack (16), and the gear (15) meshes with the lower rack (21).

4. The gravity casting mold for an alloy propeller according to claim 2, characterized in that: One end of the spring (17) is fixedly connected to the inner wall of the bracket (20), and the other end of the spring (17) is fixedly connected to the inner wall of the stop (9).

5. The gravity casting mold for an alloy propeller according to claim 2, characterized in that: The pin (19) is slidably connected to the inner wall of the stop (9) and the pin (19) is slidably connected to the inner wall of the upper cover (4).

6. The gravity casting mold for an alloy propeller according to claim 2, characterized in that: The storage platform (6) has a storage slot (10) inside, and the outer wall of the clamp (7) is slidably connected to the inner wall of the upper cover (4).

7. The gravity casting mold for an alloy propeller according to claim 1, characterized in that: The casting platform (2) has a pouring port (8) fixedly connected to its outer wall.

8. The gravity casting mold for an alloy propeller according to claim 2, characterized in that: The top of the pin (19) is fixedly connected to a handle (5).

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