A device for boring holes in composite blades of aircraft

Abstract

The present invention relates to the field of aircraft accessory processing, specifically to an aircraft composite material blade boring device, comprising a fixing assembly arranged on a processing table and used to fix the blade, a slide rail and a cylinder are fixed on the processing table, a slide seat is slidably connected to the slide rail, a piston rod end of the cylinder is fixedly connected to the slide seat, a stand and a motor are fixed on the slide seat, a rotating shaft is connected to the stand for fixed axis rotation, a gear ring is sleeved and fixedly connected to the rotating shaft, an output shaft end of the motor is connected to gear 2, gear 2 is meshedly connected to the gear ring, a boring tool and a feed mechanism for automatically feeding the boring tool are arranged on the rotating shaft, and a cooling mechanism for cooling the boring tool during processing is arranged on the processing table. The aircraft composite material blade boring device drives the feed mechanism to automatically feed the boring tool during processing, and does not need to stop the machine for manual adjustment, which saves time and effort and greatly improves work efficiency. The boring tool and the cutting surface are cooled by the cooling mechanism, and the coolant can also flush out the debris cut off in the hole.

Description

Technical Field

[0001] The invention relates to the field of aircraft accessory processing, in particular to an aircraft composite material blade boring device. Background Art

[0002] Composite blades have excellent characteristics such as light weight, fatigue resistance, aging resistance, and integrated design and manufacturing. After the blades are manufactured, the blade bushing holes need to be precisely machined to meet assembly requirements. Boring can enlarge the aperture, improve accuracy, reduce surface roughness, and can also better correct the deflection of the original hole axis. Therefore, it is often used to process bushing holes, but during the processing, the feed amount needs to be stopped and debugged, resulting in low processing efficiency. In view of this, we propose a boring device for aircraft composite blades. Summary of the invention

[0003] The purpose of the present invention is to provide a boring device for composite blades of aircraft to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a boring device for composite blades of aircraft, comprising a fixing assembly arranged on a processing table and used to fix the blades, a slide rail and a cylinder are fixed on the processing table, and a slide seat is slidably connected to the slide rail, the piston rod end of the cylinder is fixedly connected to the slide seat, a stand and a motor are fixed on the slide seat, and a rotating shaft is connected to the stand for fixed axis rotation, a gear ring is sleeved and fixedly connected on the rotating shaft, and the output shaft end of the motor is connected to gear 2, gear 2 is meshed with the gear ring, a boring tool and a feed mechanism for automatically feeding the boring tool are arranged on the rotating shaft, and a cooling mechanism for cooling the boring tool during processing is arranged on the processing table.

[0004] Preferably, a concave cavity is provided at one end of the rotating shaft, a groove is provided at the center of the other end, and a slide groove is also provided at the end of the rotating shaft with the groove, the direction of the slide groove is perpendicular to the central axis of the rotating shaft, the port of the groove is threadedly connected to a cover, and the center of the cover is rotatably connected to a nozzle.

[0005] Preferably, the feed mechanism includes a tubular shaft, and the tubular shaft passes through and is rotatably connected to the partition between the groove and the cavity, the tubular shaft and the rotating shaft share the same central axis, one end of the tubular shaft located in the groove is connected to the nozzle, a slider is slidably connected in the slide groove, and the boring tool is fixed on the slider, a screw is rotatably connected in the slide groove, and one end of the screw is located in the groove and is transmission-connected to the tubular shaft through a bevel gear assembly.

[0006] Preferably, a vertical plate is fixed on the processing table, and touch switch 2 is fixed on the vertical plate, an adjustment frame is slidably connected to the slide rail, and the adjustment frame is fixed to the slide rail by fastening screws, touch switch 1 is fixed on the adjustment frame, and the slide seat is in buckling contact with touch switch 1 and touch switch 2.

[0007] Preferably, a pump wheel is fixed in the concave cavity, and the pipe axis is coaxially fixedly connected to the impeller inside the pump wheel. An air pipe is fixed and connected to the peripheral wall of the pump wheel, and a regulating valve is connected to the air pipe.

[0008] Preferably, a pump barrel is fixed in the concave cavity, and a piston plate is slidably connected in the pump barrel, a push rod is fixed on the piston plate, a ball is embedded in the end of the push rod away from the piston plate, and the ball rolls on the push rod, the ball contacts and rolls on the vertical plate, and the piston plate is connected to one end of the pump barrel through a spring.

[0009] Preferably, the end of the pump barrel is fixed and connected to one-way valve one and one-way valve two, one-way valve two is connected to the inlet end of the trachea, the conducting direction of one-way valve one points to the inside of the pump barrel, and the conducting direction of one-way valve two points to the trachea.

[0010] Preferably, the cooling mechanism includes a water pump fixed on the processing table and a slide fixed on the vertical plate, one end of the tube shaft located in the concave cavity is inserted and slidably connected in the slide, and the tube shaft rotates on a fixed axis in the slide, and one end of the slide away from the tube shaft is sleeved with and connected to a cap, a conduit is fixed on and connected to the side wall of the water pump, and one end of the conduit is connected to the cap, and the other end is connected to the coolant tank.

[0011] Preferably, a receiving hopper is connected to the coolant tank, a guide plate is fixed on the inner wall of the coolant tank, a discharge pipe connected to the lower end of the guide plate is fixed on the side wall of the coolant tank, the lower end of the discharge pipe is connected to the collecting cylinder, a filter is hinged on the inner wall of the coolant tank, and the lower end of the filter is buckled and contacts the upper end of the guide plate.

[0012] Preferably, an axis rod passes through the processing table and is rotatably connected to it. The upper and lower ends of the axis rod are respectively rotatably connected to gear 1 and the turntable. A rack is fixed on the slide seat, and the rack is meshingly connected to gear 1. A push-pull rod passes through the side wall of the coolant tank and is slidably connected. One end of the push-pull rod located in the coolant tank is hinged to the bottom surface of the filter screen through a connecting rod, and a slot frame is fixed to the end of the push-pull rod located outside the coolant tank. A pin rod is fixed to the bottom surface of the turntable away from the center of the circle, and the pin rod is inserted and slidably connected to the strip groove of the slot frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, a motor and a cylinder are used to drive a boring cutter to perform rotary feed processing on the bushing hole of a blade, and during processing, a feed mechanism is driven to automatically feed the boring cutter, and there is no need to stop the machine for manual adjustment, which saves time and effort and greatly improves work efficiency. In addition, the cutting stroke of the boring cutter can be adjusted according to the depth of the bushing hole, and the operation is simple and convenient, thereby improving practicality.

[0014] In the present invention, when boring the bushing hole of the blade, the cooling mechanism is used to cool the boring tool and the cutting surface, and the coolant can also flush out the chips cut out in the hole and enter the coolant tank together with the coolant. The coolant can be recycled after being filtered by the filter, and the filter can be driven to swing and vibrate against the guide plate during multiple feed processing strokes, so that the chips on the filter roll down quickly and the filter is kept unobstructed in real time. The chips pass through the guide plate and the discharge pipe and enter the collection tube for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the general assembly cross-sectional structure of the present invention; Figure 2 for Figure 1 A is an enlarged structural diagram; Figure 3 for Figure 1 The enlarged structural diagram at B in FIG. Figure 4 It is a bottom view of the turntable and the trough frame structure in the present invention.

[0016] In the figure: 1, processing table; 2, slide rail; 3, cylinder; 4, slide seat; 5, rack; 6, gear 1; 7, shaft; 8, turntable; 9, pin; 10, stand; 11, shaft; 12, stand plate; 13, slide cylinder; 14, cap; 15, guide tube; 16, water pump; 17, adjustment frame; 18, fastening screw; 19, touch switch 1; 20, touch switch 2; 21, fixing assembly; 22, hopper; 23, motor; 24, coolant tank; 25, connecting rod; 26, guide plate; 27. Discharge pipe; 28. Collecting cylinder; 29. ​​Push-pull rod; 30. Groove frame; 31. Filter screen; 32. Concave cavity; 33. Pipe shaft; 34. Pump wheel; 35. Gear ring; 36. Air pipe; 37. Ball; 38. Control valve; 39. Gear 2; 40. Slide; 41. Slider; 42. Screw; 43. Boring tool; 44. Groove; 45. Cover; 46. Nozzle; 47. Pump barrel; 48. Piston plate; 49. Push rod; 50. Spring; 51. One-way valve 1; 52. One-way valve 2. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 4The present invention provides a technical solution: a composite material blade boring device for an aircraft, comprising a fixing assembly 21 arranged on a processing table 1 and used to fix the blade, a slide rail 2 and a cylinder 3 are fixed on the processing table 1, and a slide seat 4 is slidably connected to the slide rail 2, a piston rod end of the cylinder 3 is fixedly connected to the slide seat 4, a stand 10 and a motor 23 are fixed on the slide seat 4, and a rotating shaft 11 is rotatably connected to the stand 10, a gear ring 35 is sleeved and fixedly connected to the rotating shaft 11, and an output shaft end of the motor 23 is connected to a gear 2 39, and the gear 2 39 is meshedly connected to the gear ring 35, a boring tool 43 and a feed mechanism for automatically feeding the boring tool 43 are arranged on the rotating shaft 11, and a cooling mechanism for cooling the boring tool 43 during processing is arranged on the processing table 1.

[0019] In this embodiment, a concave cavity 32 is provided at one end of the rotating shaft 11, and a groove 44 is provided at the center of the other end, and a slide groove 40 is also provided at the end of the rotating shaft 11 where the groove 44 is provided. The direction of the slide groove 40 is perpendicular to the central axis of the rotating shaft 11, and a cover 45 is threadedly connected to the port of the groove 44, and a nozzle 46 is rotatably connected to the center of the cover 45.

[0020] In this embodiment, the feed mechanism includes a tube shaft 33, and the tube shaft 33 passes through and is rotatably connected to the partition between the groove 44 and the concave cavity 32. The tube shaft 33 and the rotating shaft 11 share the same central axis. One end of the tube shaft 33 located in the groove 44 is connected to the nozzle 46. A slider 41 is slidably connected in the slide groove 40, and the boring tool 43 is fixed on the slider 41. A screw 42 is rotatably connected in the slide groove 40, and one end of the screw 42 is located in the groove 44 and is connected to the tube shaft 33 through a bevel gear assembly. A vertical plate 12 is fixed on the processing table 1, and a touch switch 20 is fixed on the vertical plate 12. An adjusting frame 17 is slidably connected to the slide rail 2, and the adjusting frame 17 is fixed on the slide rail 2 by a fastening screw. A touch switch 19 is fixed on the adjusting frame 17. The slide seat 4 is in buckle contact with the touch switch 19 and the touch switch 20. A pump wheel 34 is fixed in the cavity 32, and the pipe shaft 33 is coaxially fixedly connected with the impeller inside the pump wheel 34, the peripheral wall of the pump wheel 34 is fixed and connected to the air pipe 36, and the air pipe 36 is connected to the regulating valve 38, a pump barrel 47 is fixed in the concave cavity 32, and a piston plate 48 is slidably connected in the pump barrel 47, a push rod 49 is fixed on the piston plate 48, and the end of the push rod 49 away from the piston plate 48 is inlaid with a ball 37, and the ball 37 rolls on the push rod 49, the ball 37 is in contact with the vertical plate 12 and rolls on the vertical plate 12, the piston plate 48 is connected to one end of the pump barrel 47 through a spring 50, the end of the pump barrel 47 is fixed and connected to a one-way valve 1 51 and a one-way valve 2 52, the one-way valve 2 52 is connected to the inlet end of the air pipe 36, the conduction direction of the one-way valve 1 51 points to the inside of the pump barrel 47, and the conduction direction of the one-way valve 2 52 points to the air pipe 36.

[0021] In this embodiment, the cooling mechanism includes a water pump 16 fixed on the processing table 1 and a slide 13 fixed on the vertical plate 12. One end of the tube shaft 33 located in the concave cavity 32 is inserted and slidably connected in the slide 13, and the tube shaft 33 rotates around a fixed axis in the slide 13. One end of the slide 13 away from the tube shaft 33 is sleeved with and connected to a sleeve cap 14. A conduit 15 is fixed on and connected to the side wall of the water pump 16, and one end of the conduit 15 is connected to the sleeve cap 14, and the other end is connected to a coolant tank 24. A hopper 22 is connected to the coolant tank 24. A guide plate 26 is fixed on the inner side wall of the coolant tank 24. A discharge pipe 27 connected to the lower end of the guide plate 26 is fixed on the side wall of the coolant tank 24. The lower end of the discharge pipe 27 is connected to the collecting tube 28. A filter screen 31 is hinged on the inner wall of the coolant tank 24, and the lower end of the filter screen 31 is buckled against the upper end of the contact guide plate 26. A shaft rod 7 passes through the processing table 1 and is rotatably connected to the fixed axis. The upper and lower ends of the shaft rod 7 are respectively rotatably connected to the gear 16 and the turntable 8. A rack 5 is fixed on the slide 4, and the rack 5 is meshed with the gear 16. A push-pull rod 29 passes through the side wall of the coolant tank 24 and is slidably connected. One end of the push-pull rod 29 located in the coolant tank 24 is hinged to the bottom surface of the filter screen 31 through the connecting rod 25. A slot frame 30 is fixed to the end of the push-pull rod 29 located outside the coolant tank 24. A pin rod 9 is fixed to the bottom surface of the turntable 8 away from the center of the circle, and the pin rod 9 is inserted and slidably connected in the strip groove of the slot frame 30.

[0022] Working principle and advantages of the present invention: When the aircraft composite blade boring device is used, the working process is as follows: like Figure 1 As shown, the blade to be processed is fixed on the fixing assembly 21, and the motor 23 is started by the controller, so that the motor 23 drives the rotating shaft 11 to rotate through the gear 2 39 and the gear ring 35, so that the rotating shaft 11 drives the boring tool 43 to rotate, and the cylinder 3 is started by the controller, so that the cylinder 3 pushes the slide 4 to slide to the left on the slide rail 2, so that the slide 4 drives the stand 10 and the rotating shaft 11 thereon to move to the left, and then the boring tool 43 processes the bushing hole of the blade. When the slide 4 is in contact with the touch switch 19, the cutting process of the boring tool 43 is completed. The touch switch 19 transmits the touch signal of the slide 4 to the controller, and the controller controls the cylinder 3 to drive the slide 4 to move to the right on the slide rail 2. When the boring tool 43 exits the bushing hole, Figure 2 and Figure 3As shown in the figure, the rotating shaft 11 drives the push rod 49 to approach the vertical plate 12, and when the ball 37 contacts the vertical plate 12, the vertical plate 12 applies a reaction force to the push rod 49, so that the push rod 49 pushes the piston plate 48 to move left in the pump barrel 47, and at the same time, the piston plate 48 stretches the spring 50, so that the spring 50 obtains a restoring force. When the piston plate 48 moves left in the pump barrel 47, it compresses the air in the pump barrel 47. Since the conducting direction of the one-way valve 1 51 points to the inside of the pump barrel 47, and the conducting direction of the one-way valve 2 52 points to the air pipe 36, the air in the pump barrel 47 is discharged through the air pipe 36, and when passing through the inside of the pump wheel 34, the impeller is driven to rotate. The impeller drives the pipe shaft 33 to rotate, and then the pipe shaft 33 drives the screw 42 to rotate through the bevel gear assembly, so that the screw 42 drives the slider 41 to move in the slide groove 40 in the direction away from the center of the rotating shaft 11 through the threaded transmission, so that the slider 41 synchronously drives the boring tool 43 to move, and automatic feed is realized. When the slide 4 is in contact with the touch switch 20, the touch switch 20 transmits the touch signal of the slide 4 to the controller, and the controller controls the cylinder 3 to drive the slide 4 to move to the left again on the slide rail 2, thereby realizing multiple automatic boring processes on the bushing hole, and can automatically feed, saving time and effort, and greatly improving work efficiency.

[0023] As described above, the cutting stroke of the boring tool 43 can be adjusted according to the depth of the bushing hole. When adjusting, first loosen the fastening screw so that the adjustment frame 17 can slide on the slide rail 2. After the adjustment is completed, tighten the fastening screw to fix the adjustment frame 17 on the slide rail 2. The operation is simple and convenient, which improves practicality.

[0024] After the boring process is completed, the motor 23 and the cylinder 3 are stopped by the controller, the processed blade is removed from the fixed component 21, and then the next blade to be processed is installed on the fixed component 21. After the installation is completed, the control valve 38 is opened, and air is delivered to the inside of the pump wheel 34 through the air outlet of the air pipe 36, so that the impeller drives the pipe shaft 33 to rotate in the opposite direction, thereby causing the pipe shaft 33 to drive the screw 42 to rotate in the opposite direction through the bevel gear assembly, and then the screw 42 drives the slider 41 and the boring tool 43 thereon to approach the center of the rotating shaft 11 and reset, and then the control valve 38 is closed to carry out the next boring process on the blade.

[0025] As mentioned above, when the motor 23 is started, the water pump 16 is started at the same time, so that the water pump 16 delivers the coolant in the coolant tank 24 to the slide cylinder 13 through the conduit 15, and then delivers it to the nozzle 46 through the pipe shaft 33 for spraying, so that the boring cutter 43 and the cutting surface are cooled when the boring cutter 43 is cutting, and the coolant can flush out the chips cut out in the hole, and fall on the receiving hopper 22 together with the coolant, and fall on the filter screen 31 through the receiving hopper 22, and the filter screen 31 filters out the chips, so that the coolant can be recycled, and the slide seat 4 is on the slide rail 2. At the same time, it drives the rack 5 to move synchronously, so that the rack 5 drives the gear 6 to rotate back and forth, and then the gear 6 drives the turntable 8 to rotate synchronously through the shaft 7, so that the turntable 8 drives the slot frame 30 and the push-pull rod 29 thereon to move back and forth left and right through the pin rod 9, so that the push-pull rod 29 drives the filter screen 31 to swing up and down through the connecting rod 25 and impact contact with the guide plate 26, and generate vibration, so that the debris on the filter screen 31 rolls down quickly, and the filter screen 31 is kept unobstructed in real time, and the debris passes through the guide plate 26 and the discharge pipe 27 into the collection barrel 28 for collection.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A device for boring holes in composite blades of an aircraft, comprising a fixing assembly (21) arranged on a processing table (1) and used to fix the blades, characterized in that: A slide rail (2) and a cylinder (3) are fixed on the processing table (1), and a slide seat (4) is slidably connected to the slide rail (2), a piston rod end of the cylinder (3) is fixedly connected to the slide seat (4), a stand (10) and a motor (23) are fixed on the slide seat (4), and a rotating shaft (11) is fixedly connected to the stand (10), a gear ring (35) is sleeved on and fixedly connected to the rotating shaft (11), and an output shaft end of the motor (23) is connected to a second gear (39), and the second gear (39) is meshingly connected to the gear ring (35), a boring tool (43) and a feed mechanism for automatically feeding the boring tool (43) are arranged on the rotating shaft (11), and a cooling mechanism for cooling the boring tool (43) during processing is arranged on the processing table (1).

2. The aircraft composite blade boring device according to claim 1, characterized in that: A concave cavity (32) is formed at one end of the rotating shaft (11), and a groove (44) is formed at the center of the other end. A slide groove (40) is also formed at the end of the rotating shaft (11) where the groove (44) is formed. The slide groove (40) runs perpendicular to the central axis of the rotating shaft (11). A cover (45) is threadedly connected to the end of the groove (44), and a nozzle (46) is rotatably connected to the center of the cover (45) in a fixed axis.

3. The aircraft composite blade boring device according to claim 2, characterized in that: The feed mechanism comprises a tube shaft (33), and the tube shaft (33) passes through and is rotatably connected to the partition between the groove (44) and the cavity (32), the tube shaft (33) and the rotating shaft (11) share the same central axis, one end of the tube shaft (33) located in the groove (44) is connected to the nozzle (46), a slider (41) is slidably connected in the slide groove (40), and the boring tool (43) is fixed on the slider (41), a screw rod (42) is rotatably connected in the slide groove (40), and one end of the screw rod (42) is located in the groove (44) and is transmission-connected to the tube shaft (33) through a bevel gear assembly.

4. The aircraft composite blade boring device according to claim 3, characterized in that: A vertical plate (12) is fixed on the processing table (1), and a second touch switch (20) is fixed on the vertical plate (12); an adjustment frame (17) is slidably connected to the slide rail (2), and the adjustment frame (17) is fixed to the slide rail (2) by means of fastening screws; a first touch switch (19) is fixed on the adjustment frame (17); and the slide seat (4) is in abutting contact with the first touch switch (19) and the second touch switch (20).

5. The aircraft composite blade boring device according to claim 4, characterized in that: A pump wheel (34) is fixed in the concave cavity (32), and the pipe shaft (33) is coaxially fixedly connected to an impeller inside the pump wheel (34). An air pipe (36) is fixed on the peripheral wall of the pump wheel (34) and is in communication with the air pipe (36), and a regulating valve (38) is connected to the air pipe (36).

6. The aircraft composite blade boring device according to claim 5, characterized in that: A pump barrel (47) is fixed in the concave cavity (32), and a piston plate (48) is slidably connected in the pump barrel (47). A push rod (49) is fixed on the piston plate (48). A ball (37) is embedded in one end of the push rod (49) away from the piston plate (48), and the ball (37) rolls on the push rod (49). The ball (37) is in contact with the vertical plate (12) and rolls on the vertical plate (12). The piston plate (48) is connected to one end of the pump barrel (47) via a spring (50).

7. The aircraft composite blade boring device according to claim 6, characterized in that: The end of the pump barrel (47) is fixed to and connected to the one-way valve 1 (51) and the one-way valve 2 (52); the one-way valve 2 (52) is connected to the inlet end of the air pipe (36); the conduction direction of the one-way valve 1 (51) points to the inside of the pump barrel (47), and the conduction direction of the one-way valve 2 (52) points to the air pipe (36).

8. The aircraft composite blade boring device according to claim 4, characterized in that: The cooling mechanism comprises a water pump (16) fixed on the processing table (1) and a slide cylinder (13) fixed on the vertical plate (12); one end of the tube shaft (33) located in the concave cavity (32) is inserted and slidably connected in the slide cylinder (13), and the tube shaft (33) rotates in a fixed axis in the slide cylinder (13); one end of the slide cylinder (13) away from the tube shaft (33) is sleeved with and connected to a sleeve cap (14); a conduit (15) is fixed on and connected to the side wall of the water pump (16), and one end of the conduit (15) is connected to the sleeve cap (14), and the other end is connected to a coolant tank (24).

9. The aircraft composite blade boring device according to claim 8, characterized in that: The coolant tank (24) is connected to a receiving hopper (22), a guide plate (26) is fixed to the inner wall of the coolant tank (24), a discharge pipe (27) connected to the lower end of the guide plate (26) is fixed to the side wall of the coolant tank (24), the lower end of the discharge pipe (27) is connected to a collecting cylinder (28), and a filter screen (31) is hingedly connected to the inner wall of the coolant tank (24), and the lower end of the filter screen (31) is in contact with the upper end of the guide plate (26).

10. The aircraft composite blade boring device according to claim 9, characterized in that: A shaft (7) passes through the processing table (1) and is rotatably connected to the processing table (1). The upper and lower ends of the shaft (7) are rotatably connected to a gear (6) and a turntable (8) respectively. A rack (5) is fixed on the slide seat (4), and the rack (5) is meshingly connected to the gear (6). A push-pull rod (29) passes through the side wall of the coolant tank (24) and is slidably connected to the coolant tank (24). One end of the push-pull rod (29) located inside the coolant tank (24) is hinged to the bottom surface of the filter screen (31) through a connecting rod (25). A slot frame (30) is fixed to the end of the push-pull rod (29) located outside the coolant tank (24). A pin rod (9) is fixed to the bottom surface of the turntable (8) at a position away from the center of the circle, and the pin rod (9) is inserted into and slidably connected to the strip groove of the slot frame (30).

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