Liquid-filling bulging die for aero-engine

Abstract

The utility model relates to the technical field of aero-engine accessory machining equipment, in particular to a liquid-filling bulging die for an aero-engine. The liquid-filled bulging die for the aero-engine provided by the utility model solves the technical problem that a liquid-filled bulging die product for the aero-engine in the prior art is not easy to take out. The utility model discloses an aero-engine liquid-filling bulging die which comprises a base. The lower die is provided with a die cavity, the lower die comprises a plurality of splicing bodies, the splicing bodies are spliced to form the die cavity, and the splicing bodies are connected to the base in a sliding mode in the horizontal direction; by arranging the splicing body, the upper die assembly is provided with the positioning cylinder and the wear-resistant cylinder, and the positioning cylinder positions the splicing body through the wear-resistant cylinder, so that the splicing body forms a die cavity. After a material to be formed is formed in the mold cavity, the upper mold assembly is moved, so that the positioning cylinder and the wear-resistant cylinder are separated from the splicing body, the splicing body can be opened by sliding the splicing body in the horizontal direction, and a formed product can be conveniently taken out.

Description

Technical Field

[0001] This utility model relates to the technical field of aero-engine parts processing equipment, and in particular to an aero-engine liquid filling and expansion mold. Background Technology

[0002] Liquid-filled bulging refers to the molding process where the material to be molded is forced against the side wall of the mold cavity by the pressure of a liquid. The material to be molded is hollow, and the mold cavity is shaped to match the final shape of the material. After the material is placed in the mold cavity, high-pressure liquid is injected, causing it to expand until it contacts the side wall of the mold cavity, thus achieving the desired shape. This molding method offers high efficiency and precision, making it particularly suitable for thin-walled structural components in aero-engines, such as heat shields.

[0003] In existing technologies, liquid-filled bulging molds typically employ a split structure to facilitate the removal of the molded product. Before molding, the mold is usually fixed in the target position, and after molding, the mold is released to disassemble and remove the product. This method of fixing the mold requires loosening the fixed mold during the product removal process, making the product removal operation very complicated and reducing production efficiency.

[0004] Therefore, the existing liquid filling and bulging molds for aero engines have the technical problem of making it difficult to remove the product. Utility Model Content

[0005] This utility model provides a liquid filling and bulging mold for aero engines, which solves the technical problem that the liquid filling and bulging mold products for aero engines are not easy to remove in the prior art.

[0006] Some implementation schemes for solving the above-mentioned technical problems include:

[0007] A liquid-filling bulging mold for an aircraft engine, including a base;

[0008] The lower mold has a mold cavity and includes several splicing bodies. The splicing bodies are spliced ​​together to form the mold cavity, and the splicing bodies are slidably connected to the base in the horizontal direction.

[0009] An upper mold assembly, the upper mold assembly being used to position the splice body that forms the lower mold;

[0010] The upper mold has a through hole for the core mold to pass through, a liquid filling channel is provided inside the core mold, and a molding groove is also provided in the core mold, the molding groove communicating with the liquid filling channel and the molding groove communicating with the mold cavity.

[0011] The upper mold assembly includes a top plate, the through hole is disposed on the top plate, and the upper mold assembly also includes a positioning cylinder disposed on the top plate. The positioning cylinder is provided with a wear-resistant cylinder for positioning the splice body, and at least a portion of the wear-resistant cylinder is located between the splice body and the positioning cylinder.

[0012] Preferably, the lower mold is a frustum shape with a smaller top and a larger bottom, the wear-resistant cylinder is a frustum shape with a smaller top and a larger bottom, and the wear-resistant cylinder has a positioning cavity for positioning the splice body, the positioning cavity being a frustum shape with a smaller top and a larger bottom.

[0013] Preferably, the positioning cylinder is cylindrical in shape, and the positioning cylinder has a cavity that mates with the wear-resistant cylinder.

[0014] Preferably, the lower end of the wear-resistant cylinder is provided with an annular plate, the annular plate is provided with a vertical ring, the upper end of the vertical ring is provided with a retaining ring, and a buffer cavity is formed between the retaining ring and the annular plate. The lower end of the positioning cylinder is provided with a convex ring extending into the buffer cavity. The convex ring provided in the positioning cylinder pushes the wear-resistant cylinder downward to position the splice body through the annular plate, and the convex ring provided in the positioning cylinder drives the wear-resistant cylinder upward to release the splice body through the retaining ring. The distance between the annular plate and the retaining ring is greater than the height of the convex ring.

[0015] Preferably, the annular plate and the wear-resistant cylinder are an integral structure, the vertical ring and the annular plate are an integral structure, and the retaining ring is fixed to the vertical ring by a detachable connection.

[0016] Preferably, the convex ring and the positioning cylinder are an integral structure, and the positioning cylinder and the top plate are an integral structure.

[0017] Preferably, the base is provided with guide rails, each of the splicing parts is guided by an independent guide rail, and the splicing part is provided with a sliding groove that mates with the guide rail.

[0018] Preferably, the guide rail has a trapezoidal cross-sectional shape that is wider at the top and narrower at the bottom, and the guide rail and the base are an integral structure.

[0019] Preferably, there are two splicing bodies, one of which is provided with a splicing edge, and the other splicing body is provided with a splicing groove that mates with the splicing edge.

[0020] Preferably, the filling channel includes a main channel and branch channels, all of which are connected to the main channel. The branch channels are evenly distributed along the length of the molding groove. The main channel is connected to the molding groove through the branch channels. The core mold is also provided with a nozzle that is connected to the main channel.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] By setting up the splicing body, the upper mold assembly is equipped with a positioning cylinder and a wear-resistant cylinder. The positioning cylinder positions the splicing body through the wear-resistant cylinder, allowing the splicing body to form a mold cavity. After the molding material is formed in the mold cavity, the upper mold assembly is moved to detach the positioning cylinder and wear-resistant cylinder from the splicing body. At this point, the splicing body can be slid horizontally to open, and the molded product can be easily removed, making the operation very convenient.

[0023] By setting up positioning cylinders and wear-resistant cylinders, both of which are used to position the spliced ​​body, the spliced ​​body has higher positioning strength. At the same time, the setting of positioning cylinders and wear-resistant cylinders enables the spliced ​​body to have high repeatability positioning accuracy, that is, after the spliced ​​body is opened and the product is taken out multiple times, it still has high positioning accuracy, thereby improving the molding accuracy of the product.

[0024] By incorporating a wear-resistant cylinder, which possesses high wear resistance, the cylinder is less prone to wear, thus extending its service life. Furthermore, due to its resistance to wear, the wear-resistant cylinder provides higher positioning accuracy for the assembled parts, thereby enhancing the molding precision of the mold. Attached Figure Description

[0025] For illustrative purposes, several embodiments of the present invention are illustrated in the following figures. These figures are incorporated herein by reference and form part of the detailed description. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring the concept of the subject matter of the present invention.

[0026] Figure 1 This is the front view of the present invention.

[0027] Figure 2 This is a schematic diagram of the present invention.

[0028] Figure 3 This is the explosion of the present invention.

[0029] Figure 4 This is a schematic diagram showing the assembled parts in the lower mold after they have separated, indicating that the product can be removed from this state.

[0030] Figure 5 This is a schematic diagram of a wear-resistant cylinder.

[0031] Figure 6 This is a schematic diagram of the core mold.

[0032] As shown in the figure:

[0033] 1. Base; 11. Guide rail.

[0034] 2. Lower mold, 21. Mold cavity, 22. Assembly body, 221. Assembly ridge, 222. Assembly groove.

[0035] 3. Upper mold assembly, 31. Top plate, 32. Positioning cylinder, 321. Convex ring, 33. Wear-resistant cylinder, 331. Annular plate, 332. Vertical ring, 333. Retaining ring.

[0036] 4. Core mold; 41. Fluid filling channel; 411. Main channel; 412. Branch channel; 42. Molding groove; 43. Nozzle. Detailed Implementation

[0037] The specific embodiments shown below are intended to describe various configurations of the subject matter of this invention and are not intended to represent the only configuration in which the subject matter of this invention can be practiced. The specific embodiments include detailed descriptions intended to provide a thorough understanding of the subject matter of this invention. However, it will be clear and apparent to those skilled in the art that the subject matter of this invention is not limited to the specific details shown herein and can be practiced without these specific details.

[0038] Understandably, in this document, relational terms such as “first” and “second” are intended to distinguish one entity or operation from another, and are not intended to expressly or imply any actual relationship or order between these entities or operations.

[0039] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Reference Figures 1 to 6 As shown, an aircraft engine liquid filling and expansion mold includes a base 1;

[0041] The lower mold 2 has a mold cavity 21 and includes splicing bodies 22. There are several splicing bodies 22, which are spliced ​​together to form the mold cavity 21. The splicing bodies 22 are slidably connected to the base 1 in the horizontal direction.

[0042] Upper mold assembly 3, the upper mold assembly 3 is used to position the splice body 22 that forms the lower mold 2;

[0043] The upper mold has a core mold 4, a portion of which extends into the mold cavity 21. The upper mold has a through hole through which the core mold passes. The core mold 4 is provided with a liquid filling channel 41. The core mold 4 is also provided with a molding groove 42, which communicates with the liquid filling channel 41 and the mold cavity 21.

[0044] The upper mold assembly 3 includes a top plate 31, and the through hole is disposed on the top plate 31. The upper mold assembly 3 also includes a positioning cylinder 32 disposed on the top plate 31. The positioning cylinder 32 is provided with a wear-resistant cylinder 33 for positioning the splice body 22. At least a portion of the wear-resistant cylinder 33 is located between the splice body 22 and the positioning cylinder 32.

[0045] Reference Figures 1 to 6 As shown, in some embodiments, the upper mold assembly 3 and the core mold 4 can be driven by different driving devices. During application, the splicing bodies 22 are first moved to make all the splicing bodies 22 contact each other to form the mold cavity 21. Then, the upper mold assembly 3 is moved to move the positioning cylinder 32 and the wear-resistant cylinder 33 to the outside of the lower mold 2. The positioning cylinder 32 positions and locks all the splicing bodies 22 through the wear-resistant cylinder 33 to form a complete lower mold 2.

[0046] The material to be molded is then placed in the mold cavity 21. The core mold 4 moves and uses the mold cavity 21 to perform preliminary molding of the material to be molded. Then, liquid is injected into the material to be molded through the liquid filling channel 41 to achieve the final molding of the material to be molded.

[0047] After the molding material is formed, the upper mold assembly 3 and the core mold 4 are moved to separate the upper mold assembly 3 from the lower mold 2. At this point, the splice body 22 can be moved to remove the molded product. This solution does not require frequent use of tools to fix or disassemble the lower mold 2. Only the upper mold assembly 3 needs to be moved to position or release the splice body 22 that forms the lower mold 2, making the product easier to remove and improving production efficiency.

[0048] Understandably, since both the wear-resistant cylinder 33 and the positioning cylinder 32 are cylindrical and surround the outside of the lower mold 2, the splice body 22 of the lower mold 2 is subjected to uniform force, thereby improving the accuracy of the lower mold 2 and thus improving the forming accuracy of the mold.

[0049] Reference Figures 1 to 6 As shown, in some embodiments, the lower mold 2 is shaped like a frustum with a smaller top and a larger bottom, and the wear-resistant cylinder 33 is shaped like a frustum with a smaller top and a larger bottom. The wear-resistant cylinder 33 has a positioning cavity for positioning the splice body 22, and the positioning cavity is shaped like a frustum with a smaller top and a larger bottom.

[0050] In some embodiments, the positioning cylinder 32 is cylindrical in shape, and the positioning cylinder 32 has a cavity that cooperates with the wear-resistant cylinder 33.

[0051] Understandably, the positioning cavities of the lower mold 2, wear-resistant cylinder 33, and positioning cylinder 32 are all frustum-shaped with a smaller upper part and a larger lower part. When locking the lower mold 2, the greater the downward movement of the upper mold assembly 3, the better the locking performance of the lower mold 2. Even if wear occurs, the lower mold 2 can be effectively locked, thereby giving the mold cavity 21 higher precision and improving the forming accuracy of the mold.

[0052] Reference Figures 1 to 6 As shown, in some embodiments, the lower end of the wear-resistant cylinder 33 is provided with an annular plate 331, the annular plate 331 is provided with a vertical ring 332, the upper end of the vertical ring 332 is provided with a retaining ring 333, and a buffer cavity is formed between the retaining ring 333 and the annular plate 331. The lower end of the positioning cylinder 32 is provided with a convex ring 321 extending into the buffer cavity. The convex ring 321 provided in the positioning cylinder 32 pushes the wear-resistant cylinder 33 downward to position the splice body through the annular plate 331. The convex ring 321 provided in the positioning cylinder 32 drives the wear-resistant cylinder 33 upward to release the splice body 22 through the retaining ring 333. The distance between the annular plate 331 and the retaining ring 333 is greater than the height of the convex ring 321.

[0053] Understandably, the convex ring 321 cooperates with the buffer cavity to realize that when the upper mold assembly 3 moves upward, the positioning cylinder 32 releases the wear-resistant cylinder 33, and then the wear-resistant cylinder 33 releases the splice body 22. During the process of the wear-resistant cylinder 33 separating from the splice body 22, the positioning cylinder 32 no longer restricts the formation of the wear-resistant cylinder 33, that is, the positioning cylinder 32 no longer contacts the side wall of the wear-resistant cylinder 33, thereby making it easy for the wear-resistant cylinder 33 to separate from the splice body 22.

[0054] Reference Figures 1 to 6 As shown, in some embodiments, to further facilitate the separation of the splice 22 from the wear-resistant cylinder 33, several gaps may be provided on the wear-resistant cylinder 33. These gaps are arranged along the axial direction of the wear-resistant cylinder 33 and are evenly distributed around its circumference. When the positioning cylinder 32 engages with the wear-resistant cylinder 33, the gaps decrease, and the wear-resistant cylinder 33 can effectively position the lower mold 2. After the positioning cylinder 32 disengages from the wear-resistant cylinder, the gaps increase due to the elastic deformation of the material itself, allowing the wear-resistant cylinder 33 to easily detach from the lower mold 2.

[0055] In some embodiments, the annular plate 331 and the wear-resistant cylinder 33 are integral structures, the vertical ring 332 and the annular plate 331 are integral structures, and the retaining ring 333 is detachably fixed to the vertical ring 332.

[0056] In some embodiments, the retaining ring 333 can be fixed to the upright ring 332 with screws to facilitate assembly of the wear-resistant cylinder 33 and the positioning cylinder 32. The convex ring 321 and the positioning cylinder 32 are integral structures, and the positioning cylinder 32 and the top plate 31 are integral structures.

[0057] In some embodiments, the base 1 is provided with a guide rail 11, each of the splicing bodies 22 is guided by an independent guide rail 11, and the splicing body 22 is provided with a sliding groove that cooperates with the guide rail 11.

[0058] The guide rail 11 has a trapezoidal cross-sectional shape that is wider at the top and narrower at the bottom, and the guide rail 11 and the base 1 are an integral structure.

[0059] Understandably, the guide rail 11 can also be set on the splicing body 22, and the slide can be set on the base 1.

[0060] In some embodiments, there are two splicing bodies 22, one of which is provided with a splicing edge 221, and the other splicing body 22 is provided with a splicing groove 222 that mates with the splicing edge 221.

[0061] The cross-sectional shape of the splicing edge 221 can be cross-shaped or star-shaped, so that after the splicing edge 221 and the splicing groove 222 are matched, the degrees of freedom of the spliced ​​body 22 in two directions can be limited, preventing the two spliced ​​bodies 22 from being misaligned.

[0062] In some embodiments, the filling channel 41 includes a main channel 411 and branch channels 412, all of which are connected to the main channel 411. The branch channels 412 are evenly arranged along the length of the molding groove 42, and the main channel 411 is connected to the molding groove 42 through the branch channels 412. The core mold 4 is also provided with a nozzle 43 that is connected to the main channel 411.

[0063] In some embodiments, the connector 43 may be an integral part of the core mold 4. The connector 43 may be a quick-release connector 43 to facilitate the assembly or disassembly of the connector 43 with other accessories.

[0064] The above describes the subject matter technical solution of this utility model and its corresponding details. It is understood that the above description is only some implementation schemes of the subject matter technical solution of this utility model, and some details may be omitted in the specific implementation.

[0065] Furthermore, in some embodiments of the above utility model, multiple embodiments may be combined; however, due to space limitations, all such combinations will not be listed here. Those skilled in the art can freely combine the above embodiments according to their needs to achieve a better application experience.

[0066] When implementing the subject matter technical solution of this utility model, those skilled in the art can obtain other detailed configurations or drawings based on the subject matter technical solution and the accompanying drawings. Obviously, these details are still within the scope of the subject matter technical solution of this utility model without departing from it.

Claims

1. A liquid-filling bulging mold for an aero-engine, characterized in that: Includes base (1); The lower mold (2) has a mold cavity (21) and includes a splicing body (22). There are several splicing bodies (22), which are spliced ​​together to form the mold cavity (21). The splicing bodies (22) are slidably connected to the base (1) in the horizontal direction. Upper mold assembly (3), the upper mold assembly (3) is used to position the splice body (22) that forms the lower mold (2); The upper mold has a core mold (4), a portion of which extends into the mold cavity (21). The upper mold has a through hole through which the core mold passes. A liquid filling channel (41) is provided inside the core mold (4). The core mold (4) also has a molding groove (42), which communicates with the liquid filling channel (41) and with the mold cavity (21). The upper mold assembly (3) includes a top plate (31), the through hole is disposed on the top plate (31), the upper mold assembly (3) also includes a positioning cylinder (32) disposed on the top plate (31), the positioning cylinder (32) is provided with a wear-resistant cylinder (33) for positioning the splice body (22), and at least a portion of the wear-resistant cylinder (33) is located between the splice body (22) and the positioning cylinder (32).

2. The aircraft engine fluid filling and bulging mold according to claim 1, characterized in that: The lower mold (2) is shaped like a frustum with a smaller top and a larger bottom, and the wear-resistant cylinder (33) is also shaped like a frustum with a smaller top and a larger bottom. The wear-resistant cylinder (33) has a positioning cavity for positioning the splice body (22), and the positioning cavity is also shaped like a frustum with a smaller top and a larger bottom.

3. The aircraft engine fluid filling and bulging mold according to claim 2, characterized in that: The positioning cylinder (32) is cylindrical in shape, and the positioning cylinder (32) has a cavity that cooperates with the wear-resistant cylinder (33).

4. The aircraft engine fluid filling and bulging mold according to claim 3, characterized in that: The lower end of the wear-resistant cylinder (33) is provided with an annular plate (331), the annular plate (331) is provided with a vertical ring (332), the upper end of the vertical ring (332) is provided with a retaining ring (333), a buffer cavity is formed between the retaining ring (333) and the annular plate (331), the lower end of the positioning cylinder (32) is provided with a convex ring (321) extending into the buffer cavity, wherein the convex ring (321) provided in the positioning cylinder (32) pushes the wear-resistant cylinder (33) downward to position the splice body through the annular plate (331), the convex ring (321) provided in the positioning cylinder (32) drives the wear-resistant cylinder (33) upward to release the splice body (22) through the retaining ring (333), and the distance between the annular plate (331) and the retaining ring (333) is greater than the height of the convex ring (321).

5. The aircraft engine fluid filling and bulging mold according to claim 4, characterized in that: The annular plate (331) and the wear-resistant cylinder (33) are an integral structure, the vertical ring (332) and the annular plate (331) are an integral structure, and the retaining ring (333) is fixed to the vertical ring (332) by a detachable connection.

6. The aircraft engine fluid filling and bulging mold according to claim 5, characterized in that: The convex ring (321) and the positioning cylinder (32) are an integral structure, and the positioning cylinder (32) and the top plate (31) are an integral structure.

7. The aircraft engine fluid filling and bulging mold according to claim 1, characterized in that: The base (1) is provided with a guide rail (11), and each splice body (22) is guided by an independent guide rail (11). The splice body (22) is provided with a groove that cooperates with the guide rail (11).

8. The aircraft engine fluid filling and bulging mold according to claim 7, characterized in that: The cross-sectional shape of the guide rail (11) is a trapezoid with a wider top and a narrower bottom, and the guide rail (11) and the base (1) are an integral structure.

9. The aircraft engine liquid filling and bulging mold according to claim 8, characterized in that: There are two splicing bodies (22), one of which is provided with a splicing edge (221), and the other splicing body (22) is provided with a splicing groove (222) that mates with the splicing edge (221).

10. The aircraft engine fluid filling and bulging mold according to claim 1, characterized in that: The filling channel (41) includes a main channel (411) and branch channels (412). All the branch channels (412) are connected to the main channel (411). The branch channels (412) are evenly arranged along the length of the molding groove (42). The main channel (411) is connected to the molding groove (42) through the branch channels (412). The core mold (4) is also provided with a nozzle (43) that is connected to the main channel (411).

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