Blade wax mold correcting tool

Abstract

The utility model provides a blade wax mould correcting tool, which relates to the technical field of correcting tools and comprises a base, handles are mounted on the surfaces of two ends of the base, quick clamps are mounted on two sides of the upper surface of the base, a moving block is mounted at one end of each quick clamp, and a blade wax mould is arranged between the two moving blocks. And a shaping mechanism for correcting the shape of the blade wax mold is mounted between the two moving blocks. According to the utility model, the two moving blocks are pressed inwards through the quick clamp, so that the top of the blade wax mould can be limited among the first upper shape correcting block, the second upper shape correcting block and the blade runner surface limiting blocks at different positions; the bottom of the blade wax mold can be fixed between the first lower shape correcting block and the first abutting shape correcting block and between the second lower shape correcting block and the second abutting shape correcting block, the surface of the blade wax mold can be attached to the surfaces of the shape correcting blocks at different positions, the blade wax mold can be cooled and shaped in the tool, deformation can be effectively reduced, and the overall size error after forming is smaller.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology for shaping, and more specifically, to a tooling for shaping a blade wax mold. Background Technology

[0002] Turbine blades are a crucial component of the turbine section in gas turbine engines, typically formed using investment casting. Turbine engine blades endure significant operating stress and high temperatures during operation, and are also subject to corrosion from high-temperature combustion gases, making their working conditions extremely harsh. To improve turbine efficiency, the surface shape of turbine blades is usually designed as a twisted, variable-section curved surface, resulting in complex shapes with minimal machining allowances; sometimes, there are even no machining allowances on the blade body, placing high demands on the dimensional accuracy of the castings. However, due to the structure and casting methods, turbine blades are highly susceptible to deformation during production, leading to deviations in shape and dimensions. A significant reason for deformation in investment castings is the deformation of the wax pattern during free cooling. Therefore, cooling and shaping the wax pattern to control its shape and dimensions is essential. We propose an improvement to this, creating a blade wax pattern straightening fixture. Utility Model Content

[0003] The main purpose of this invention is to provide a tooling for straightening a blade wax model, which can effectively solve the problem of deformation of the wax model during free cooling.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A blade wax model shaping fixture includes a base, with handles installed on both ends of the base, quick clamps installed on both sides of the upper surface of the base, a movable block installed at one end of each quick clamp, a blade wax model disposed between two movable blocks, and a shaping mechanism for shaping the blade wax model installed between the two movable blocks.

[0006] Preferably, slide rails are installed on both sides of the upper surface of the base, and sliders are installed on the bottom of both ends of the moving block, with one end of the slider slidably disposed inside the slide rail.

[0007] Preferably, the shaping mechanism includes a support plate, which is installed on one side of the upper surface of the base. The top of the support plate has two slots, and a blade flow channel surface limiting block is rotatably installed inside each slot.

[0008] Preferably, a first upper collapsible block is mounted on the upper surface of one end of one of the movable blocks, and a second upper collapsible block is mounted on the upper surface of one end of the other movable block.

[0009] Preferably, a first lower alignment block is installed on the lower side of one end surface of one of the movable blocks, and a second lower alignment block is installed on the lower side of one end surface of the other movable block.

[0010] Preferably, a first abutting and adjusting block is installed on the side of the upper surface of the base near the first lower adjusting block, and a second abutting and adjusting block is installed on the side of the upper surface of the base near the second lower adjusting block.

[0011] Preferably, the top two sides of the blade wax model are respectively disposed between the first upper shaping block, the second upper shaping block and the blade flow channel surface limiting block at different positions, and the bottom two sides of the blade wax model are respectively disposed between the first lower shaping block and the first pressing shaping block and the second lower shaping block and the second pressing shaping block.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By pressing the two moving blocks inward with a quick clamp, the top of the blade wax model can be limited between the first upper shaping block, the second upper shaping block, and the blade flow channel surface limiting blocks at different positions. The bottom of the blade wax model will be fixed between the first lower shaping block and the first pressing shaping block, as well as between the second lower shaping block and the second pressing shaping block. The surface of the blade wax model will fit against the surface of the shaping blocks at different positions. The blade wax model can be cooled and shaped inside the tooling, which can effectively reduce deformation, and the overall dimensional error after molding is smaller, resulting in better performance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0016] Figure 3 This is a front view of the present invention;

[0017] Figure 4 This is a rear view of the present invention;

[0018] Figure 5 This is a top view of the present invention.

[0019] In the diagram: 1. Base; 101. Slide rail; 2. Handle; 3. Quick clamp; 4. Moving block; 401. Slider; 5. Shaping mechanism; 501. Support plate; 502. Slot; 503. Blade flow channel surface limiting block; 504. First upper shaping block; 505. Second upper shaping block; 506. First lower shaping block; 507. Second lower shaping block; 508. First clamping shaping block; 509. Second clamping shaping block; 6. Blade wax model. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1 As shown, a blade wax model shaping fixture includes a base 1, handles 2 are installed on both ends of the base 1, quick clamps 3 are installed on both sides of the upper surface of the base 1, a moving block 4 is installed at one end of each quick clamp 3, a blade wax model 6 is arranged between two moving blocks 4, and a shaping mechanism 5 for shaping the blade wax model 6 is installed between two moving blocks 4.

[0022] like Figure 2 As shown, slide rails 101 are installed on both sides of the upper surface of the base 1, and sliders 401 are installed on the bottom of both ends of the moving block 4. One end of the slider 401 is slidably disposed inside the slide rail 101. Through the cooperation between the slider 401 and the slide rail 101, the movement trajectory of the moving block 4 can be limited, making it more stable during movement and preventing positional deviation. This allows for more accurate positioning of the shaping block, which is beneficial for shaping the leaf wax mold 6.

[0023] like Figures 1 to 5 As shown, the shaping mechanism 5 includes a support plate 501, which is mounted on one side of the upper surface of the base 1. Two slots 502 are formed on the top of the support plate 501. A blade flow channel surface limiting block 503 is rotatably mounted inside each slot 502. A first upper calibrating block 504 is mounted on the upper side of one end surface of one movable block 4, and a second upper calibrating block 505 is mounted on the upper side of one end surface of the other movable block 4. A first lower calibrating block 506 is mounted on the lower side of one end surface of one movable block 4, and a second lower calibrating block 506 is mounted on the lower side of one end surface of the other movable block 4. The first pressing and adjusting block 508 is installed on the upper surface of the base 1 near the first lower adjusting block 506, and the second pressing and adjusting block 509 is installed on the upper surface of the base 1 near the second lower adjusting block 507. The top two sides of the blade wax mold 6 are respectively located between the first upper adjusting block 504, the second upper adjusting block 505 and the blade flow channel surface limiting block 503 at different positions. The bottom two sides of the blade wax mold 6 are respectively located between the first lower adjusting block 506 and the first pressing and adjusting block 508, and between the second lower adjusting block 507 and the second pressing and adjusting block 509.

[0024] By using the first upper alignment block 504, the second upper alignment block 505, the blade flow channel surface limiting block 503, the first lower alignment block 506, the second lower alignment block 507, the first pressing alignment block 508, and the second pressing alignment block 509 to limit the position of the blade wax mold 6, the blade wax mold 6 will not deform during the molding process, and the dimensions after molding will be more accurate.

[0025] The working principle of this blade wax mold shaping fixture:

[0026] In use, the two moving blocks 4 are pulled apart by the quick clamp 3, and the blade flow channel surface limiting block 503 is lifted. The blade wax model that has just been taken out of the mold is placed between the two moving blocks 4. Then the blade flow channel surface limiting block 503 is reset. The two moving blocks 4 are pressed inward by the quick clamp 3. The top of the blade wax model 6 is limited between the first upper shaping block 504, the second upper shaping block 505 and the blade flow channel surface limiting blocks 503 at different positions. The bottom of the blade wax model 6 is fixed between the first lower shaping block 506 and the first pressing shaping block 508 and the second lower shaping block 507 and the second pressing shaping block 509. The surface of the blade wax model 6 will be in contact with the surface of the shaping blocks at different positions. After cooling and shaping for a certain period of time, the above operation is repeated to remove the blade wax model 6. Through the cooperation between multiple shaping blocks, the blade wax model 6 can be cooled and shaped inside the tooling, which can effectively reduce deformation, and the overall dimensional error after molding is smaller and the use effect is better.

[0027] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A blade wax mold shaping fixture, comprising a base (1), characterized in that: Handles (2) are installed on both ends of the base (1), quick clamps (3) are installed on both sides of the upper surface of the base (1), a moving block (4) is installed at one end of each quick clamp (3), a blade wax mold (6) is provided between two moving blocks (4), and a shaping mechanism (5) for adjusting the shape of the blade wax mold (6) is installed between two moving blocks (4).

2. The blade wax mold shaping fixture according to claim 1, characterized in that: The upper surface of the base (1) is equipped with slide rails (101) on both sides, and the bottom of both ends of the moving block (4) is equipped with sliders (401), one end of the slider (401) is slidably disposed inside the slide rail (101).

3. The blade wax mold shaping fixture according to claim 1, characterized in that: The shaping mechanism (5) includes a support plate (501), which is installed on one side of the upper surface of the base (1). Two slots (502) are opened on the top of the support plate (501), and a blade flow channel surface limiting block (503) is rotatably installed inside each slot (502).

4. The blade wax mold shaping fixture according to claim 3, characterized in that: One of the movable blocks (4) has a first upper collateral block (504) mounted on one end surface, and the other movable block (4) has a second upper collateral block (505) mounted on one end surface.

5. The blade wax mold shaping fixture according to claim 4, characterized in that: One of the movable blocks (4) has a first lower alignment block (506) mounted on the lower side of one end surface, and the other movable block (4) has a second lower alignment block (507) mounted on the lower side of one end surface.

6. The blade wax mold shaping fixture according to claim 5, characterized in that: A first abutting and adjusting block (508) is installed on the upper surface of the base (1) near the first lower adjusting block (506), and a second abutting and adjusting block (509) is installed on the upper surface of the base (1) near the second lower adjusting block (507).

7. The blade wax mold shaping fixture according to claim 6, characterized in that: The top two sides of the blade wax mold (6) are respectively disposed between the first upper calibrating block (504), the second upper calibrating block (505) and the blade flow channel surface limiting block (503) at different positions. The bottom two sides of the blade wax mold (6) are respectively disposed between the first lower calibrating block (506) and the first pressing calibrating block (508) and the second lower calibrating block (507) and the second pressing calibrating block (509).

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