Aero-engine blade borescope reverse mold tool

Abstract

The utility model discloses an aero-engine blade hole detection reverse mold tool, which is applied to the field of aero-engine detection, and is characterized in that a pull rod drives a slide rod to move by moving a pull block, so that a clamping head is separated from a clamping hole, a reverse mold head is taken down, and the replaced reverse mold head is mounted on a handle; a sliding rod drives a clamping head to be clamped with a clamping hole under the action of a spring, the reverse die head is fixed, and replacement is completed, so that the purpose of conveniently replacing the reverse die head is achieved, the use cost is reduced, and the practicability and applicability are improved; the elastic rod drives the clamping toothed plate to be disengaged from the clamping rack under the action of elasticity of the elastic rod, and after the telescopic rod is moved to a required position, the rotating cylinder is tightened, so that the elastic rod drives the clamping toothed plate and the clamping rack to be clamped and fixed, the purpose of adjusting the length of the handle is achieved, the use cost is reduced, and the practicability and the applicability are improved.

Description

Technical Field

[0001] The utility model relates to the field of aero-engine detection, in particular to a borescope reverse mould tool for aero-engine blades. Background Technique

[0002] At present, the Chinese utility model with the publication number of CN220625935U discloses a borescope reverse mould tool for aero-engine blades, which includes a reverse mould head and a handle. The reverse mould head is a groove body for containing a thixotropic replication compound. A connecting part connected to the handle is arranged on the groove body, and a pair of positioning openings for clamping on the blade are arranged at the notch of the groove body. The pair of positioning openings are notch-shaped and arranged oppositely. The utility model uses a highly fluid thixotropic replication compound for reverse moulding, and can replicate the surface shape of metal parts with a resolution of 0.1 μm, so as to replicate the defects of the blade onto the thixotropic replication compound, and then use a light section method measuring scanner to measure the defects. While maintaining the consistency of the defects, the light section method is used to measure the compound model after reverse moulding, realizing the accurate measurement of the blade defects.

[0003] The existing reverse mould tool is not convenient for replacing the reverse mould head. Generally, the shape of the reverse mould head is fixed and can only be used for reverse moulding engine blades of one shape. If reverse moulding engine blades of different shapes, it needs to be replaced. Generally, the reverse mould head is fixedly installed with the handle. If you want to replace it, you need to replace the whole tool, which increases the use cost, reduces the practicability and applicability, and the length of the handle cannot be adjusted. Generally, the length of the handle of the reverse mould tool is fixed. Due to the different distances of the blades of different engines, different lengths of handles are required to send the reverse mould head to the blade. If you want to reverse mould the blades at different positions, you need to replace the reverse mould tool, which increases the use cost, reduces the practicability and applicability, and is not convenient to use. In order to solve the above problems, we propose a borescope reverse mould tool for aero-engine blades. Content of the Utility Model

[0004] The purpose of the utility model is to provide a borescope reverse mould tool for aero-engine blades, and its advantage is that it is convenient for replacing the reverse mould head and can adjust the length of the handle.

[0005] The above technical object of the utility model is achieved through the following technical solutions: An aero-engine blade borescope reverse mold tool includes a first fixing cylinder, an expansion rod is slidably sleeved on the inner wall of the first fixing cylinder, a sliding rod is slidably connected to the inner wall of the first fixing cylinder, a clamping head is bolted on the surface of the sliding rod, a clamping hole is formed on the surface of the expansion rod, and the clamping hole is clamped with the clamping head. A pull rod is bolted on the surface of the sliding rod, and the pull rod is slidably sleeved on the inner wall of the first fixing cylinder. A spring is sleeved on the surface of the pull rod. A reverse mold mechanism is arranged on the surface of the first fixing cylinder. A handle rod is slidably sleeved on the surface of the expansion rod. One end of the handle rod is bolted with a second fixing cylinder, and the second fixing cylinder is slidably sleeved on the surface of the expansion rod. An elastic rod is bolted on the surface of the second fixing cylinder. A clamping tooth plate is bolted at one end of the elastic rod. A clamping rack is clamped on the surface of the clamping tooth plate, and the clamping rack is embedded in the surface of the expansion rod. A rotating cylinder is threadedly connected to the surface of the second fixing cylinder, and the elastic rod is located inside the rotating cylinder.

[0006] By adopting the above technical solutions, by moving the pull block to drive the sliding rod to move, the clamping head is disengaged from the clamping hole, the reverse mold head is removed, the replaced reverse mold head is installed on the handle, and the sliding rod drives the clamping head to be clamped with the clamping hole under the action of the spring, so as to fix the reverse mold head and complete the replacement, thus achieving the purpose of facilitating the replacement of the reverse mold head, reducing the use cost, and improving the practicability and applicability. By rotating the rotating cylinder to relax the extrusion of the inner wall of the rotating cylinder on the elastic rod, the elastic rod drives the clamping tooth plate to be disengaged from the clamping rack under the action of its own elasticity. After moving the expansion rod to the required position, the rotating cylinder is tightened, so that the elastic rod drives the clamping tooth plate and the clamping rack to be clamped and fixed, thus achieving the purpose of adjusting the length of the handle, reducing the use cost, and improving the practicability and applicability.

[0007] The utility model is further arranged as follows: The reverse mold mechanism includes a reverse mold head, the surface of the reverse mold head is bolted to the surface of the first fixing cylinder, positioning notch openings are formed on both sides of the reverse mold head, and overflow holes are formed on the front and back of the reverse mold head.

[0008] By adopting the above technical solutions, by arranging the reverse mold mechanism, it is convenient for reverse molding.

[0009] The utility model is further arranged as follows: A pull block is bolted at one end of the pull rod.

[0010] By adopting the above technical solutions, by arranging the pull block, it is convenient to move the pull rod.

[0011] The utility model is further arranged as follows: One end of the clamping head is wedge-shaped.

[0012] By adopting the above technical solutions, by arranging one end of the clamping head to be wedge-shaped, it is convenient to fix the expansion rod and facilitate the installation of the handle.

[0013] The present utility model is further configured such that: scale lines are printed on the surface of the telescopic rod.

[0014] With the above technical solution, by setting the scale lines, it is convenient to adjust the length.

[0015] The present utility model is further configured such that: the number of the elastic rods is four, and the four elastic rods are evenly distributed on the surface of the second fixed cylinder.

[0016] With the above technical solution, by setting the number of the elastic rods to four and evenly distributing the four elastic rods on the surface of the second fixed cylinder, the fixing stability is improved.

[0017] The present utility model is further configured such that: anti-slip sleeves are fixedly sleeved on the surfaces of the rotating cylinder and the handle rod.

[0018] With the above technical solution, by setting the anti-slip sleeves, it can prevent hand slipping and is convenient for operation.

[0019] In summary, the present utility model has the following beneficial effects:

[0020] 1. In the present utility model, by moving the pulling block, the pull rod drives the sliding rod to move, so that the clamping joint disengages from the clamping hole, the die-casting head is removed, the replaced die-casting head is installed on the handle, and the sliding rod drives the clamping joint to be clamped with the clamping hole under the action of the spring, thereby fixing the die-casting head to complete the replacement, so as to achieve the purpose of facilitating the replacement of the die-casting head, reducing the use cost, and improving the practicability and applicability;

[0021] 2. In the present utility model, by rotating the rotating cylinder, the inner wall of the rotating cylinder relaxes the extrusion on the elastic rod, and the elastic rod drives the clamping tooth plate to disengage from the clamping rack under the action of its own elasticity. After moving the telescopic rod to the required position, the rotating cylinder is tightened, so that the elastic rod drives the clamping tooth plate and the clamping rack to be clamped, thereby achieving the purpose of adjusting the length of the handle, reducing the use cost, and improving the practicability and applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0023] Figure 2 is a sectional structure diagram of the present utility model;

[0024] Figure 3 is a three-dimensional structure diagram of a partial structure of the present utility model;

[0025] Figure 4 is the present utility model Figure 2 enlarged view of the structure at A;

[0026] Figure 5 is the present utility model Figure 2Enlarged view of the structure at B in the middle.

[0027] Reference numerals: 1, first fixed cylinder; 2, telescopic rod; 3, sliding rod; 4, clamping joint; 5, clamping hole; 6, pull rod; 7, spring; 8, reverse mold mechanism; 9, handle rod; 10, second fixed cylinder; 11, elastic rod; 12, clamping tooth plate; 13, clamping rack; 14, rotating cylinder; 15, reverse mold head; 16, positioning notch; 17, overflow hole; 18, pull block; 19, scale line; 20, anti-slip sleeve. Specific implementation mode

[0028] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Embodiment 1:

[0030] Refer to Figure 1 , Figure 2 and Figure 4 , an endoscope reverse mold tool for an aeroengine blade, comprising a first fixed cylinder 1, a telescopic rod 2 is slidably sleeved on the inner wall of the first fixed cylinder 1, a sliding rod 3 is slidably connected to the inner wall of the first fixed cylinder 1, a clamping joint 4 is bolted to the surface of the sliding rod 3, a clamping hole 5 is formed in the surface of the telescopic rod 2, and the clamping hole 5 is clamped with the clamping joint 4. A pull rod 6 is bolted to the surface of the sliding rod 3, and the pull rod 6 is slidably sleeved on the inner wall of the first fixed cylinder 1. A spring 7 is sleeved on the surface of the pull rod 6. A reverse mold mechanism 8 is arranged on the surface of the first fixed cylinder 1. By moving the pull block 18, the pull rod 6 drives the sliding rod 3 to move, so that the clamping joint 4 is disengaged from the clamping hole 5, the reverse mold head 15 is removed, the replaced reverse mold head 15 is installed on the handle, the sliding rod 3 drives the clamping joint 4 to be clamped with the clamping hole 5 under the action of the spring 7, and the reverse mold head 15 is fixed to complete the replacement, thereby achieving the purpose of facilitating the replacement of the reverse mold head 15, reducing the use cost, and improving the practicability and applicability.

[0031] Refer to Figure 1 , the reverse mold mechanism 8 includes a reverse mold head 15, the surface of the reverse mold head 15 is bolted to the surface of the first fixed cylinder 1, positioning notches 16 are formed on both sides of the reverse mold head 15, and overflow holes 17 are formed on the front and back of the reverse mold head 15. By arranging the reverse mold mechanism 8, reverse molding is facilitated.

[0032] Refer to Figure 4 , one end of the pull rod 6 is bolted with a pull block 18. By arranging the pull block 18, it is convenient to move the pull rod 6.

[0033] Refer to Figure 4 , one end of the clamping joint 4 is wedge-shaped. By arranging the one end of the clamping joint 4 to be wedge-shaped, it is convenient to fix the telescopic rod 2 and facilitate the installation of the handle.

[0034] Embodiment 2:

[0035] Refer to Figure 1, Figure 2 , Figure 3 and Figure 5 , a handle rod 9 is slidably sleeved on the surface of the telescopic rod 2. One end of the handle rod 9 is bolted with a second fixed cylinder 10, and the second fixed cylinder 10 is slidably sleeved on the surface of the telescopic rod 2. An elastic rod 11 is bolted on the surface of the second fixed cylinder 10. One end of the elastic rod 11 is bolted with a clamping tooth plate 12. A clamping rack 13 is clamped on the surface of the clamping tooth plate 12, and the clamping rack 13 is embedded in the surface of the telescopic rod 2. A rotating cylinder 14 is threadedly connected to the surface of the second fixed cylinder 10, and the elastic rod 11 is located inside the rotating cylinder 14. By rotating the rotating cylinder 14, the inner wall of the rotating cylinder 14 relaxes the extrusion on the elastic rod 11. Under the action of its own elasticity, the elastic rod 11 drives the clamping tooth plate 12 to disengage from the clamping rack 13. After moving the telescopic rod 2 to the required position, tighten the rotating cylinder 14 to make the elastic rod 11 drive the clamping tooth plate 12 and the clamping rack 13 to be clamped and fixed, so as to achieve the purpose of adjusting the length of the handle, reduce the use cost, and improve the practicability and applicability.

[0036] Reference Figure 1 , scale lines 19 are printed on the surface of the telescopic rod 2. By setting the scale lines 19, it is convenient to adjust the length.

[0037] Reference Figure 3 , the number of the elastic rods 11 is four, and the four elastic rods 11 are evenly distributed on the surface of the second fixed cylinder 10. By setting the number of the elastic rods 11 to be four and the four elastic rods 11 to be evenly distributed on the surface of the second fixed cylinder 10, the fixing stability is improved.

[0038] Reference Figure 1 , Figure 2 and Figure 5 , anti-slip sleeves 20 are fixedly sleeved on the surfaces of the rotating cylinder 14 and the handle rod 9. By setting the anti-slip sleeves 20, it can prevent hand slipping and is convenient for operation.

[0039] Brief description of the usage process: Put the thixotropic replication compound into the casting mold head 15, hold the handle, perform the casting mold operation in the flow channel of the aero-engine, monitor the mold removal process through an endoscope device or an endoscope grinding device, replicate the fine defects of the blade onto the thixotropic replication compound, demold, and then use the light cutting method to measure the scanner to perform 3D modeling on the profile of the cured casting mold compound, and measure the blade defects with a measurement accuracy of 0.5 μm. Move the pull block 18, the movement of the pull block 18 drives the movement of the pull rod 6, the movement of the pull rod 6 drives the movement of the sliding rod 3, and the movement of the sliding rod 3 drives the movement of the clamping joint 4, so that the clamping joint 4 disengages from the clamping hole 5, remove the casting mold head 15, install the replaced casting mold head 15 on the handle, and the sliding rod 3 drives the clamping joint 4 to engage with the clamping hole 5 under the action of the spring 7 to fix the casting mold head 15, completing the replacement, so as to achieve the purpose of facilitating the replacement of the casting mold head 15; Rotate the rotating cylinder 14 to relax the extrusion of the inner wall of the rotating cylinder 14 on the elastic rod 11. The elastic rod 11 drives the clamping tooth plate 12 to disengage from the clamping rack 13 under the action of its own elasticity. After moving the telescopic rod 2 to the required position, tighten the rotating cylinder 14 to make the elastic rod 11 drive the clamping tooth plate 12 and the clamping rack 13 to engage and fix it, so as to achieve the purpose of adjusting the length of the handle.

[0040] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions according to needs, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. An aeroengine blade borescope reverse mould tool, including a first fixed cylinder (1), characterized in that, A telescopic rod (2) is slidably sleeved on the inner wall of the first fixed cylinder (1). A slide rod (3) is slidably connected to the inner wall of the first fixed cylinder (1). A clamping head (4) is bolted to the surface of the slide rod (3). A clamping hole (5) is formed in the surface of the telescopic rod (2), and the clamping hole (5) is clamped with the clamping head (4). A pull rod (6) is bolted to the surface of the slide rod (3), and the pull rod (6) is slidably sleeved on the inner wall of the first fixed cylinder (1). A spring (7) is sleeved on the surface of the pull rod (6). A die-casting mechanism (8) is arranged on the surface of the first fixed cylinder (1).

2. The borescope reverse molding tool for an aeroengine blade according to claim 1, characterized in that A handle rod (9) is slidably sleeved on the surface of the telescopic rod (2). One end of the handle rod (9) is bolted with a second fixed cylinder (10), and the second fixed cylinder (10) is slidably sleeved on the surface of the telescopic rod (2). An elastic rod (11) is bolted to the surface of the second fixed cylinder (10). One end of the elastic rod (11) is bolted with a clamping tooth plate (12). A clamping rack (13) is clamped on the surface of the clamping tooth plate (12), and the clamping rack (13) is embedded in the surface of the telescopic rod (2). A rotating cylinder (14) is threadedly connected to the surface of the second fixed cylinder (10), and the elastic rod (11) is located inside the rotating cylinder (14).

3. The aero-engine blade borescope reverse molding tool according to claim 1, wherein The die-casting mechanism (8) includes a die-casting head (15). The surface of the die-casting head (15) is bolted to the surface of the first fixed cylinder (1). Positioning notches (16) are formed on both sides of the die-casting head (15). Overflow holes (17) are formed on the front and back of the die-casting head (15).

4. The borescope reverse mould tool for an aero-engine blade according to claim 1, wherein A pull block (18) is bolted to one end of the pull rod (6).

5. A borescope reverse mold tool for an aeroengine blade according to claim 1, characterized in that One end of the clamping head (4) is wedge-shaped.

6. The borescope reverse mold tool for an aeroengine blade according to claim 1, characterized in that, Scale lines (19) are printed on the surface of the telescopic rod (2).

7. The aero-engine blade borescope reverse mould tool according to claim 2, wherein, The number of the elastic rods (11) is four, and the four elastic rods (11) are evenly distributed on the surface of the second fixed cylinder (10).

8. The aeroengine blade borescope reverse mould tool according to claim 2, wherein, Anti-slip sleeves (20) are fixedly sleeved on the surfaces of the rotating cylinder (14) and the handle rod (9).

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