Drilling device for aviation blade

Abstract

The utility model relates to the field of aviation blade machining, in particular to a drilling device for an aviation blade. According to the drilling device for the aviation blades, appropriate clamping force can be provided for different aviation blades during drilling, blade deformation or surface scratching caused by excessive pressure is prevented, and the machining precision is improved. A drilling device for aviation blades comprises a machining table, a trackless air cylinder and the like, and the trackless air cylinder is connected to the upper rear portion of the machining table. Gas enters the sliding block to push the pressure sensor plate to move inwards, the aviation blade is clamped through the extrusion block, and the extrusion force is detected through the pressure sensor plate, so that the gas injection amount discharged through the pressurization pipe is controlled, the extrusion force is adjusted, the proper clamping force can be provided for different aviation blades in the drilling process, and the drilling efficiency is improved. Blade deformation or surface scratching caused by excessive pressure is prevented, and the machining precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of aviation blade processing especially relates to a drilling device for aviation blade. BACKGROUND

[0002] The drilling of aviation blade refers to the process of accurate drilling on the aviation engine blade, which is a key step in the manufacture and maintenance of the aviation engine. The aviation blade is one of the core components of the aviation engine, and its performance directly affects the efficiency, reliability and life of the engine.

[0003] The existing drilling of aviation blade is through the clamping and fixing of the aviation blade by the clamp, and then the drilling of the aviation blade by the drill bit. However, it is difficult to control the clamping force of the aviation blade when clamping the aviation blade, which may cause the blade to be subjected to excessive pressure during the processing process, thereby causing deformation or surface scratches, seriously affecting the aerodynamic performance and structural integrity of the blade, and the inappropriate clamping force may affect the drilling accuracy.

[0004] Therefore, it is necessary to design a drilling device for aviation blade which can provide appropriate clamping force for different aviation blades during drilling, prevent excessive pressure from causing deformation or surface scratches of the blade, and improve the processing accuracy. SUMMARY

[0005] In order to overcome the shortcomings of the existing drilling of aviation blade, that is, it is difficult to control the clamping force of the aviation blade when clamping the aviation blade, which may cause the blade to be subjected to excessive pressure during the processing process, thereby causing deformation or surface scratches, seriously affecting the aerodynamic performance and structural integrity of the blade, and the inappropriate clamping force may affect the drilling accuracy, the utility model provides a drilling device for aviation blade which can provide appropriate clamping force for different aviation blades during drilling, prevent excessive pressure from causing deformation or surface scratches of the blade, and improve the processing accuracy.

[0006] The technical scheme is as follows: a drilling device for aviation blade, comprising a processing table, a trackless air cylinder, a first sliding frame, a drilling assembly, a clamping and adjusting assembly, and a gas injection assembly. The processing table is connected with the trackless air cylinder at the upper rear part. The sliding block of the trackless air cylinder is connected with the first sliding frame. The first sliding frame is provided with the drilling assembly which can drill the aviation blade. The processing table is provided with the clamping and adjusting assembly which can clamp and adjust the angle of the aviation blade. The clamping and adjusting assembly is provided with the gas injection assembly which can provide appropriate clamping force for different aviation blades.

[0007] Further, the drilling assembly comprises a mounting frame, a first motor, a one-way screw rod, a second sliding frame and a spark drill bit, the front side of the first sliding frame is connected with the mounting frame, the upper side of the front part of the first sliding frame is connected with the first motor, the output shaft of the first motor is connected with the one-way screw rod, the one-way screw rod is rotatably connected with the mounting frame, the second sliding frame is threadedly connected with the one-way screw rod, the second sliding frame is slidably connected with the mounting frame, and the spark drill bit is mounted on the second sliding frame.

[0008] Further, the drilling assembly comprises a mounting frame, a first motor, a one-way screw rod, a second sliding frame and a spark drill bit, the front side of the first sliding frame is connected with the mounting frame, the upper side of the front part of the first sliding frame is connected with the first motor, the output shaft of the first motor is connected with the one-way screw rod, the one-way screw rod is rotatably connected with the mounting frame, the second sliding frame is threadedly connected with the one-way screw rod, the second sliding frame is slidably connected with the mounting frame, and the spark drill bit is mounted on the second sliding frame.

[0009] Further, the upper side of the two-way screw rod is provided with a handle.

[0010] Further, the drilling assembly comprises a mounting frame, a first motor, a one-way screw rod, a second sliding frame and a spark drill bit, the front side of the first sliding frame is connected with the mounting frame, the upper side of the front part of the first sliding frame is connected with the first motor, the output shaft of the first motor is connected with the one-way screw rod, the one-way screw rod is rotatably connected with the mounting frame, the second sliding frame is threadedly connected with the one-way screw rod, the second sliding frame is slidably connected with the mounting frame, and the spark drill bit is mounted on the second sliding frame.

[0011] Further, the drilling assembly comprises a mounting frame, a first motor, a one-way screw rod, a second sliding frame and a spark drill bit, the front side of the first sliding frame is connected with the mounting frame, the upper side of the front part of the first sliding frame is connected with the first motor, the output shaft of the first motor is connected with the one-way screw rod, the one-way screw rod is rotatably connected with the mounting frame, the second sliding frame is threadedly connected with the one-way screw rod, the second sliding frame is slidably connected with the mounting frame, and the spark drill bit is mounted on the second sliding frame.

[0012] 1、The gas enters the sliding block, the pressure sensor plate is pushed to move inward, the aviation blade is clamped through the extrusion block, the extrusion degree is detected through the pressure sensor plate, and then the injection amount is controlled through the pressure pipe, the extrusion degree is adjusted, different aviation blades can be provided with appropriate clamping force during drilling, overpressure is prevented to cause deformation or surface scratch of the blade, and the machining precision is improved.

[0013] 2、The third motor is started, the rotating disc is driven to rotate, the aviation blade is horizontally rotated, the second motor is controlled to rotate the rotating frame, and the aviation blade is rotated, so that the angle of the aviation blade can be adjusted, and different positions of the aviation blade can be conveniently drilled. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a three-dimensional structure schematic view of the drilling assembly of the utility model.

[0016] Figure 3 It is a three-dimensional structure schematic view of the clamping adjusting assembly of the utility model.

[0017] Figure 4 It is a partial section three-dimensional structure schematic view of the clamping adjusting assembly of the utility model.

[0018] Figure 5 It is a section three-dimensional structure schematic view of the gas injection assembly of the utility model.

[0019] Part names and serial numbers in the figure: 1_processing table, 2_trackless air cylinder, 3_first sliding frame, 4_mounting frame, 5_first motor, 6_one-way screw, 7_second sliding frame, 8_spark drill bit, 9_fixing frame, 10_second motor, 11_rotary frame, 12_third motor, 13_rotation disc, 14_two-way screw, 15_sliding block, 16_pressure sensor plate, 17_extension column, 18_extrusion block, 19_spring, 20_pressurizing pipe. DETAILED DESCRIPTION

[0020] The utility model will be specifically described below in combination with the drawings.

[0021] A kind of drilling device for aviation blade, such as Figures 1-5As shown, including processing platform 1, trackless cylinder 2, the first sliding frame 3, mounting frame 4, the first motor 5, one-way screw 6, the second sliding frame 7, spark drill bit 8, fixed frame 9, the second motor 10, rotating frame 11, the third motor 12, rotating disc 13, bidirectional screw 14, sliding block 15, pressure sensor plate 16, telescopic column 17, extrusion block 18, spring 19 and pressure pipe 20, the upper part of processing platform 1 is connected with trackless cylinder 2, the sliding block of trackless cylinder 2 is connected with the first sliding frame 3, the front side of the first sliding frame 3 is connected with mounting frame 4, the upper side of the front part of the first sliding frame 3 is connected with the first motor 5, the output shaft of the first motor 5 is connected with one-way screw 6, one-way screw 6 is connected with mounting frame 4 in rotation, one-way screw 6 is connected with the second sliding frame 7 in screw, the second sliding frame 7 is connected with mounting frame 4 in sliding, the second sliding frame 7 is installed with spark drill bit 8, the upper side of the middle part of processing platform 1 is connected with fixed frame 9, the rear side of fixed frame 9 is connected with the second motor 10, the output shaft of the second motor 10 is connected with rotating frame 11, rotating frame 11 is connected with fixed frame 9 in rotation, the middle right side of rotating frame 11 is connected with the third motor 12, the output shaft of the third motor 12 is connected with rotating disc 13, rotating disc 13 is connected with rotating frame 11 in rotation, rotating disc 13 is connected with bidirectional screw 14 in rotation, the upper side of bidirectional screw 14 is provided with a handle, which is convenient to hold rotating, the upper and lower parts of bidirectional screw 14 are connected with sliding block 15 in screw, sliding block 15 is connected with rotating disc 13, the inside of sliding block 15 is connected with pressure sensor plate 16 in sliding, the inside of the front and rear parts of pressure sensor plate 16 is connected with six telescopic columns 17, the telescopic end of telescopic column 17 is connected with extrusion block 18, extrusion block 18 is connected with adjacent pressure sensor plate 16 through spring 19, the outside of sliding block 15 is connected with pressure pipe 20.

[0022] In use of the device, first, the machining table 1 is placed in the drilling area of the aerofoil, then the handle is rotated to rotate the bidirectional screw rod 14, the sliding block 15 is moved under the action of the screw thread, the pressing blocks 18 are close to each other, after the position of the sliding block 15 is roughly adjusted, the aerofoil is placed between the sliding blocks 15, then the outer hose of the pressurizing pipe 20 is connected with the air pump, the air pump is used to make the gas enter the sliding block 15 through the hose, the pressure sensor plate 16 is moved inward to be close to each other, the pressing blocks 18 contact the aerofoil, part of the pressing blocks 18 are moved downward, the telescopic column 17 is contracted, the spring 19 is pressed and contracted, the aerofoil is clamped by the pressing blocks 18, the pressing degree is detected by the pressure sensor plate 16, so that the injection amount of the pressurizing pipe 20 is controlled, the pressing degree of the aerofoil is controlled and adjusted, so that suitable clamping force can be provided for different aerofoils during drilling, the aerofoil is prevented from being deformed or scratched due to excessive pressing, the machining precision is improved, the use is flexible, after the fixing is completed, the second motor 10 is started, the rotating frame 11 is rotated on the fixed frame 9, the aerofoil is directed to the spark drill 8, then the trackless air cylinder 2 is started, the first sliding frame 3 is moved, the first sliding frame 3 is moved to a certain position, the trackless air cylinder 2 is closed, then the first motor 5 is started, the unidirectional screw rod 6 is rotated, the second sliding frame 7 is moved downward along the mounting frame 4 under the action of the screw thread, then the aerofoil is drilled by the spark drill 8, when drilling is needed at other positions, the third motor 12 is started, the rotating disc 13 is rotated, the aerofoil is horizontally rotated, the rotating frame 11 is rotated by the second motor 10, the aerofoil is rotated, so that the angle of the aerofoil can be adjusted, drilling is facilitated at different positions of the aerofoil, after drilling is completed, the gas in the sliding block 15 is released, the pressure sensor plate 16 is moved outward, then the aerofoil is taken out, the spring 19 is restored, the pressing blocks 18 are moved and reset.

[0023] The above merely illustrates the specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An apparatus for drilling holes in an aeronautical blade, characterized in that, The utility model provides a kind of aviation blade drilling device, including processing platform (1), trackless air cylinder (2), first sliding frame (3), drilling assembly, clamping adjusting assembly and gas injection assembly, trackless air cylinder (2) is connected in the upper part of processing platform (1) rear, the slider of trackless air cylinder (2) is connected with first sliding frame (3), first sliding frame (3) front is equipped with the drilling assembly capable of drilling to aviation blade, processing platform (1) middle part is equipped with the clamping adjusting assembly capable of clamping and adjusting angle to aviation blade, and the gas injection assembly capable of providing suitable clamping force to different aviation blade is equipped on clamping adjusting assembly.

2. An apparatus for drilling holes in an aerofoil blade as claimed in claim 1, wherein, Drilling assembly includes mounting bracket (4), first motor (5), one-way screw rod (6), second sliding frame (7) and spark drill bit (8), first sliding frame (3) front side is connected with mounting bracket (4), first sliding frame (3) front upper side is connected with first motor (5), first motor (5) output shaft is connected with one-way screw rod (6), one-way screw rod (6) is rotatably connected with mounting bracket (4), one-way screw rod (6) is threadedly connected with second sliding frame (7), second sliding frame (7) is slidably connected with mounting bracket (4), and second sliding frame (7) is installed with spark drill bit (8).

3. An apparatus for drilling holes in an aerofoil blade as claimed in claim 1, wherein, It further includes a clamping adjusting assembly, which includes a fixed frame (9), a second motor (10), a rotating frame (11), a third motor (12), a rotating disc (13), a bidirectional screw rod (14), and a sliding block (15). The fixed frame (9) is connected to the upper side of the middle part of the processing platform (1). The second motor (10) is connected to the rear side of the fixed frame (9). The rotating frame (11) is connected to the output shaft of the second motor (10). The rotating frame (11) is rotatably connected to the fixed frame (9). The third motor (12) is connected to the right side of the middle part of the rotating frame (11). The rotating disc (13) is connected to the output shaft of the third motor (12). The rotating disc (13) is rotatably connected to the rotating frame (11). The bidirectional screw rod (14) is rotatably connected to the middle part of the rotating disc (13). The sliding blocks (15) are threadedly connected to the upper and lower parts of the bidirectional screw rod (14). The sliding blocks (15) are in contact with the rotating disc (13).

4. An apparatus for drilling holes in an aerofoil blade as claimed in claim 3, wherein, The upper side of the bidirectional screw rod (14) is provided with a handle.

5. An apparatus for drilling holes in an aerofoil blade as claimed in claim 1, wherein, It further includes a gas injection assembly, which includes a pressure sensor plate (16), a telescopic column (17), a pressing block (18), and a spring (19). The pressure sensor plates (16) are slidably connected inside the sliding blocks (15). The telescopic columns (17) are connected to the inner sides of the front and rear parts of the pressure sensor plates (16). The pressing blocks (18) are connected to the telescopic ends of the telescopic columns (17). The springs (19) are connected between the pressing blocks (18) and the adjacent pressure sensor plates (16).

6. An apparatus for drilling holes in an aerofoil blade as claimed in claim 3, wherein, It further includes a pressurizing pipe (20), which is connected to the outside of the sliding blocks (15).

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