Turn-milling device for outer circle of aero-engine casing

Abstract

The utility model relates to the technical field of aero-engines, and provides an aero-engine casing outer circle turn-milling device which comprises a turn-milling device body, a rotating disc, a first rotating shaft, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a fourth rotating shaft and a fifth rotating shaft. Multiple moving blocks are slidably mounted on the inner surface, away from the first motor, of the rotating disc. The buffer frames are slidably mounted at the ends, away from the rotating disc, of the moving blocks correspondingly; according to the clamping device, due to the fact that the connecting pieces are rotationally connected with the buffering frames, when the clamping device faces an irregular object, the clamping blocks can be adjusted by a certain angle, the clamping blocks are made to be better attached to the appearance of the irregular object, and under the condition that the clamping blocks are not stressed, the clamping blocks are not prone to being damaged. And the reset spring restores to the original position to be parallel to the buffer frame, so that the contact area with the outer circle body of the aero-engine case is increased, and the clamping and fixing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation engines, in particular to an aviation engine casing outer circle turning and milling device. Background Art

[0002] The casing is the external load-bearing and protective device of the aircraft engine. During the casing processing, it is necessary to perform turning and milling work on the outer cylindrical surface of the casing.

[0003] However, the prior art has the following disadvantages when used: when the prior art is turning and milling the outer circle of the aircraft engine casing, the outer circle of the aircraft engine casing needs to be clamped and fixed first, and the outer circle of the aircraft engine casing is an irregular shape. The contact area between the prior art and the outer circle of the aircraft engine casing is small, resulting in a general clamping and fixing effect. In addition, when the aircraft engine casing is turned and milled, metal debris will be generated, and the generated metal debris needs to be collected centrally. The prior art has low efficiency in collecting metal debris, which is not conducive to improving work efficiency. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that when the prior art performs turning and milling work on the outer circle of the aircraft engine casing, the outer circle of the aircraft engine casing needs to be clamped and fixed first, and the outer circle of the aircraft engine casing is an irregular shape. The prior art has a small contact surface with the outer circle of the aircraft engine casing, resulting in a general clamping and fixing effect. In addition, when the aircraft engine casing is turned and milled, metal debris will be generated. The generated metal debris needs to be collected centrally, and the prior art has low efficiency in collecting metal debris, which is not conducive to improving work efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an aircraft engine casing outer circle turning and milling device, comprising: a turning and milling device body, a motor is fixedly installed on the inner surface of one end of the turning and milling device body, and also comprising:

[0006] A rotating disk is fixedly mounted at the output end of the motor 1, and a plurality of moving blocks are slidably mounted on the inner surface of the rotating disk away from the motor 1;

[0007] A plurality of buffer racks are respectively slidably mounted on one end of the plurality of moving blocks away from the rotating disk;

[0008] A plurality of groups of elastic members are respectively fixedly mounted on one end of the plurality of groups of buffer frames close to the center of the rotating disk, and a connecting member is rotatably mounted on one end of the plurality of groups of buffer frames close to the center of the rotating disk;

[0009] A plurality of groups of clamping blocks are respectively fixedly mounted on one end of the plurality of groups of connecting members away from the plurality of groups of buffer frames.

[0010] Preferably, the ends of the multiple groups of elastic members away from the multiple groups of connecting members are respectively fixedly installed on the inner surfaces of the multiple moving blocks, the ends of the multiple groups of connecting members away from the multiple groups of clamping blocks are all fixedly installed with multiple return springs, and the ends of the multiple groups of return springs close to the center of the connecting members are respectively fixedly installed on the outer surfaces of the multiple groups of buffer frames.

[0011] Preferably, a plurality of threaded rods are installed at one end of the rotating disk close to the plurality of moving blocks via bearings, and a bevel gear 1 is fixedly installed at one end of the plurality of threaded rods close to the center of the rotating disk.

[0012] Preferably, the outer surfaces of the plurality of bevel gear ones are meshingly connected with bevel gear twos, the end of the bevel gear two away from the motor one is installed on the inner surface of the rotating disk through a bearing, a servo motor is fixedly installed on the inner surface of the rotating disk close to the output end of the motor one, and the output end of the servo motor is fixedly connected coaxially with the rotating shaft of the bevel gear two.

[0013] Preferably, both ends of the milling device body away from the rotating disk are fixedly installed with collection boxes, and the ends of the two collection boxes close to the rotating disk are both installed with reciprocating screws through bearings, and the ends of the two collection boxes close to the rotating disk are both fixedly installed with fixing rods.

[0014] Preferably, a cleaning plate is threadedly mounted on the outer surface of the reciprocating screw, and the cleaning plate is slidably mounted on the outer surface of the fixed rod at one end away from the reciprocating screw, and one end of one of the collecting boxes close to the reciprocating screw is fixedly mounted with motor 2.

[0015] Preferably, the output end of the second motor is coaxially fixedly connected to one end of the reciprocating screw, a cleaning hole is opened at one end of the turning and milling device body close to the two collection boxes, and the end of the cleaning plate away from the rotating disk is in sliding contact with the inner surface of the turning and milling device body.

[0016] Compared with the prior art, the advantages and positive effects of the utility model are:

[0017] 1. In the utility model, when in use, since the connecting piece is rotatably connected to the buffer frame, when facing an irregular object, the clamping block can be adjusted to a certain angle to make it more closely fit the shape of the irregular object. When the clamping block is not subjected to force, the return spring restores it to its original position and makes it parallel to the buffer frame, which is beneficial to increase the contact area with the outer circle of the aircraft engine casing and improve the clamping and fixing effect.

[0018] 2. In the utility model, when in use, the metal debris moves into the collection box through the cleaning hole. At the same time, one end of the bottom of the collection box is high and the other end is low. Under the action of gravity, the metal debris slides to the lowest point inside the collection box, which is conducive to the re-collection of the metal debris that falls into the collection box, which is conducive to improving the efficiency of collecting metal debris and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural schematic diagram of an aircraft engine casing outer circle turning and milling device provided by the utility model;

[0020] Figure 2 A schematic diagram of the side view of the stereoscopic structure of an aircraft engine casing outer circle turning and milling device provided by the utility model;

[0021] Figure 3 A schematic diagram of the partial three-dimensional structure of an aircraft engine casing outer circle turning and milling device provided by the utility model;

[0022] Figure 4 The utility model provides an aircraft engine casing outer circle turning and milling device Figure 3 Enlarged view of point A.

[0023] Legend: 1. Milling device body; 101. Cleaning hole; 2. Rotating disk; 3. Collecting box; 301. Reciprocating screw; 302. Fixed rod; 303. Motor 2; 304. Cleaning plate; 4. Moving block; 401. Elastic member; 402. Connecting member; 403. Clamping block; 404. Reset spring; 5. Motor 1; 6. Threaded rod; 7. Bevel gear 1; 8. Bevel gear 2; 9. Servo motor; 10. Buffer rack. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0026] Embodiment 1, as Figure 1-4 As shown, the utility model provides an aircraft engine casing outer circle turning and milling device, comprising: a turning and milling device body 1, a motor 5 is fixedly installed on the inner surface of one end of the turning and milling device body 1, and also includes:

[0027] The rotating disk 2 is fixedly mounted on the output end of the motor 5, and a plurality of moving blocks 4 are slidably mounted on the inner surface of the rotating disk 2 away from the motor 5;

[0028] A plurality of buffer racks 10 are respectively slidably mounted on one end of the plurality of moving blocks 4 away from the rotating disk 2;

[0029] Multiple groups of elastic members 401 are respectively fixedly mounted on one end of multiple groups of buffer frames 10 close to the center of the rotating disk 2, and one end of multiple groups of buffer frames 10 close to the center of the rotating disk 2 is rotatably mounted with a connecting member 402;

[0030] Multiple groups of clamping blocks 403 are respectively fixedly mounted on one end of multiple groups of connecting members 402 away from multiple groups of buffer frames 10, multiple groups of elastic members 401 are respectively fixedly mounted on the inner surfaces of multiple moving blocks 4, multiple groups of connecting members 402 are respectively fixedly mounted on one end of multiple groups of clamping blocks 403, multiple groups of reset springs 404 are respectively fixedly mounted on the outer surfaces of multiple groups of buffer frames 10 at one end close to the center of the connecting members 402, multiple threaded rods 6 are respectively mounted on one end of the rotating disk 2 close to the multiple moving blocks 4 through bearings, multiple threaded rods 6 are respectively fixedly mounted on one end close to the center of the rotating disk 2 with bevel gears 1-7, multiple bevel gears 1-7 are respectively meshed and connected on the outer surfaces of bevel gears 2-8, one end of the bevel gears 2-8 away from the motor 1-5 is mounted on the inner surface of the rotating disk 2 through a bearing, a servo motor 9 is fixedly mounted on the inner surface of the rotating disk 2 close to the output end of the motor 5, and the output end of the servo motor 9 is coaxially fixedly connected with the rotating shaft of the bevel gear 2-8.

[0031] In this embodiment, when in use, the external power supply is turned on, and the staff controls the servo motor 9 in the milling device body 1 to work, and the forward and reverse rotation of the servo motor 9 is increased. Due to the combined effect of the bevel gear 2 8, the bevel gear 1 7, and the threaded rod 6, it is convenient to drive the moving block 4 to reciprocate on the rotating disk 2, and adjust the relative distance between the moving blocks 4, which is conducive to adapting to the size of the outer circle of the aircraft engine casing. Due to the combined effect of the buffer frame 10, the elastic member 401, the connecting member 402, the clamping block 403, and the return spring 404, it is convenient to promote the buffer frame 10 to move the moving block 4 when the clamping block 403 contacts the outer circle of the aircraft engine casing. Internal movement causes the elastic member 401 to contract, which is beneficial to playing a buffering role for clamping the outer cylindrical body of the aircraft engine casing and avoiding damage to the outer cylindrical body of the aircraft engine casing. In addition, since the connecting member 402 is rotatably connected to the buffer frame 10, when facing irregular objects, the clamping block 403 can be adjusted to a certain angle to make it more closely fit the shape of the irregular object. When the clamping block 403 is not subjected to force, the return spring 404 restores it to its original position and makes it parallel to the buffer frame 10, which is beneficial to increase the contact area with the outer cylindrical body of the aircraft engine casing and improve the clamping and fixing effect. After the clamping and fixing work is completed, the motor 5 works to drive the rotating disk 2 to rotate.

[0032] Embodiment 2, as Figure 1-4As shown, collecting boxes 3 are fixedly installed at both ends of the turning and milling device body 1 away from the rotating disk 2, and reciprocating screws 301 are installed through bearings at the ends of the two collecting boxes 3 close to the rotating disk 2. Fixed rods 302 are fixedly installed at the ends of the two collecting boxes 3 close to the rotating disk 2, and a cleaning plate 304 is threadedly installed on the outer surface of the reciprocating screw 301. The end of the cleaning plate 304 away from the reciprocating screw 301 is slidably installed on the outer surface of the fixed rod 302, and one end of one of the collecting boxes 3 close to the reciprocating screw 301 is fixedly installed with a second motor 303, and the output end of the second motor 303 is coaxially fixedly connected with one end of the reciprocating screw 301, and a cleaning hole 101 is opened at one end of the turning and milling device body 1 close to the two collecting boxes 3, and the end of the cleaning plate 304 away from the rotating disk 2 is in sliding contact with the inner surface of the turning and milling device body 1.

[0033] In this embodiment, when in use, the staff controls the motor 2 303 to work, drives the reciprocating screw 301 to rotate, thereby driving the cleaning plate 304 to reciprocate along the reciprocating screw 301 and the fixed rod 302, so that the metal debris that falls into the bottom of the milling device body 1 is moved into the collection box 3 through the cleaning hole 101. At the same time, one end of the bottom of the collection box 3 is higher than the other end. Under the action of gravity, the metal debris slides to the lowest point inside the collection box 3, which is conducive to the metal debris that falls into the collection box 3 for concentrated collection again, which is conducive to improving the efficiency of collecting metal debris and improving work efficiency.

[0034] Working principle: When in use, the external power supply is turned on, and the staff controls the servo motor 9 in the milling device body 1 to work, and increases the forward and reverse rotation of the servo motor 9. Due to the combined effect of the bevel gear 2 8, the bevel gear 1 7, and the threaded rod 6, it is convenient to drive the moving block 4 to reciprocate on the rotating disk 2, and adjust the relative distance between the moving blocks 4, which is conducive to adapting to the size of the outer circle body of the aircraft engine casing. Due to the combined effect of the buffer frame 10, the elastic member 401, the connecting member 402, the clamping block 403, and the return spring 404, when the clamping block 403 contacts the outer circle body of the aircraft engine casing, the buffer frame 10 is prompted to move inside the moving block 4, and the elastic member 401 contracts, which is conducive to playing a buffering role for clamping the outer circle body of the aircraft engine casing, avoiding damage to the outer circle body of the aircraft engine casing, and because the connecting member 402 is rotatably connected to the buffer frame 10, when facing irregular objects, the clamping block 403 can be adjusted to a certain angle to make it more fit the shape of the irregular object, and when the clamping block 403 is not subjected to force , the return spring 404 restores it to its original position and is parallel to the buffer frame 10, which is beneficial to increase the contact area with the outer cylindrical body of the aircraft engine casing and improve the clamping and fixing effect. After the clamping and fixing work is completed, the motor 1 5 works to drive the rotating disk 2 to rotate. When in use, the staff controls the motor 2 303 to work, drives the reciprocating screw rod 301 to rotate, thereby driving the cleaning plate 304 to reciprocate along the reciprocating screw rod 301 and the fixing rod 302, so that the metal debris that falls into the bottom of the turning and milling device body 1 is removed by cleaning Hole 101 moves into the collecting box 3. At the same time, one end of the bottom of the collecting box 3 is high and the other end is low. Under the action of gravity, the metal debris slides to the lowest point inside the collecting box 3, which is beneficial to collect the metal debris falling into the collecting box 3 again, which is beneficial to improve the efficiency of collecting metal debris and improve work efficiency. The model of motor 5 is YEJ-90S-2-1.5kw, the model of motor 2 303 is YBF-63-0.18KW-2P, and the model of servo motor 9 is 90-03520.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A turning and milling device for the outer circle of an aircraft engine casing, comprising a turning and milling device body (1), a motor (5) being fixedly mounted on the inner surface of one end of the turning and milling device body (1), characterized in that: Also includes: A rotating disk (2) is fixedly mounted on the output end of the motor 1 (5), and a plurality of moving blocks (4) are slidably mounted on the inner surface of the rotating disk (2) away from the motor 1 (5); A plurality of groups of buffer frames (10) are respectively slidably mounted on one end of the plurality of moving blocks (4) away from the rotating disk (2); A plurality of groups of elastic members (401) are respectively fixedly mounted on one end of the plurality of groups of buffer frames (10) close to the center of the rotating disk (2); and a connection member (402) is rotatably mounted on one end of the plurality of groups of buffer frames (10) close to the center of the rotating disk (2); The plurality of clamping blocks (403) are respectively fixedly mounted on one end of the plurality of connecting members (402) away from the plurality of buffer frames (10).

2. The device for turning and milling the outer circle of an aircraft engine casing according to claim 1, characterized in that: One end of the multiple groups of elastic members (401) away from the multiple groups of connecting members (402) is respectively fixedly mounted on the inner surface of the multiple moving blocks (4), and one end of the multiple groups of connecting members (402) away from the multiple groups of clamping blocks (403) is fixedly mounted with multiple return springs (404), and one end of the multiple groups of return springs (404) close to the center of the connecting members (402) is respectively fixedly mounted on the outer surface of the multiple groups of buffer frames (10).

3. The device for turning and milling the outer circle of an aircraft engine casing according to claim 2, characterized in that: A plurality of threaded rods (6) are installed via bearings on one end of the rotating disk (2) close to the plurality of moving blocks (4); and a bevel gear (7) is fixedly installed on one end of the plurality of threaded rods (6) close to the center of the rotating disk (2).

4. The device for turning and milling the outer circle of an aircraft engine casing according to claim 3, characterized in that: The outer surfaces of the plurality of bevel gears one (7) are meshingly connected with bevel gear two (8); the end of the bevel gear two (8) away from the motor one (5) is mounted on the inner surface of the rotating disk (2) via a bearing; a servo motor (9) is fixedly mounted on the inner surface of the rotating disk (2) close to the output end of the motor one (5); the output end of the servo motor (9) is coaxially fixedly connected with the rotating shaft of the bevel gear two (8).

5. The device for turning and milling the outer circle of an aircraft engine casing according to claim 4, characterized in that: Collection boxes (3) are fixedly mounted on both ends of the milling device body (1) away from the rotating disk (2); a reciprocating screw rod (301) is mounted on one end of the two collection boxes (3) close to the rotating disk (2) via a bearing; and a fixing rod (302) is fixedly mounted on one end of the two collection boxes (3) close to the rotating disk (2).

6. The device for turning and milling the outer circle of an aircraft engine casing according to claim 5, characterized in that: A cleaning plate (304) is threadedly mounted on the outer surface of the reciprocating screw (301), and the cleaning plate (304) is slidably mounted on the outer surface of the fixed rod (302) at one end away from the reciprocating screw (301), and a motor 2 (303) is fixedly mounted on one end of one of the collecting boxes (3) close to the reciprocating screw (301).

7. The device for turning and milling the outer circle of an aircraft engine casing according to claim 6, characterized in that: The output end of the second motor (303) is coaxially fixedly connected to one end of the reciprocating screw rod (301); a cleaning hole (101) is provided at one end of the turning and milling device body (1) close to the two collecting boxes (3); and an end of the cleaning plate (304) away from the rotating disk (2) is in sliding contact with the inner surface of the turning and milling device body (1).

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