Airplane bolt hole punching device

Abstract

The utility model provides an airplane bolt hole punching device, and belongs to the technical field of airplane manufacturing. The device is simple and ingenious in structure, convenient to adjust and good in drilling positioning effect. A feeding column of the device is coaxially inserted into a base in a sliding mode, a second driving motor is fixedly installed at the end of the working end of the feeding column, a drill bit clamp is installed at the end of the output end of the second driving motor in a driving mode, the drill bit clamp is installed on the drill bit clamp, and a plurality of supporting legs are movably inserted into the base and abut against the position between the base and a workpiece. The first driving motor is fixedly installed on the outer wall of the base, the driving end of the first driving motor drives the feeding column through a gear and rack pair to linearly slide along the axis to execute drilling work, and the multiple laser lamps are fixedly installed on the lower end face of the base and used for drilling hole position alignment. The positions of the supporting legs of the device can be freely adjusted, the position of the whole device can be conveniently fixed, the laser lamp and the positioning frame are arranged in a combined mode, hole position alignment is convenient, and the device is simple in overall operation, high in stability and good in trepanning effect.

Description

A device for drilling bolt holes in aircraft Technical Field

[0001] This utility model belongs to the field of aircraft manufacturing technology, and in particular relates to an aircraft bolt hole drilling device. Background Technology

[0002] In the aircraft manufacturing process, many internal components are installed using bolts. Most of these components are non-standard and irregularly shaped. When drilling, the drilling equipment is difficult to position, which can easily cause the axis of the drilled hole to shift. This makes it difficult to perform subsequent tapping, or the bolt installation axis may shift after tapping, resulting in unstable installation of bolted components and affecting the connection effect. Therefore, a drilling equipment that can be adapted to aircraft parts is needed to meet the assembly and processing requirements of aircraft. Summary of the Invention

[0003] To address the problems existing in the background art, this utility model provides an aircraft bolt hole drilling device. The device has a simple and ingenious structure, is easy to adjust, and has a good drilling positioning effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an aircraft bolt hole drilling device, including a base, a feed column, a first drive motor, multiple legs and multiple laser lights. The feed column is coaxially slidably inserted into the base. The second drive motor is fixedly installed at the working end of the feed column. The output end of the second drive motor drives the drill chuck to be installed. The drill chuck is mounted on the drill chuck. The multiple legs are movably inserted into the base. The multiple legs support the base between the base and the workpiece and surround the drill bit. The first drive motor is fixedly installed on the outer wall of the base. The drive end of the first drive motor drives the feed column to slide linearly along the axis through a gear and rack pair to perform drilling work. The multiple laser lights are fixedly installed on the lower end face of the base for drilling hole alignment.

[0005] The base includes a sleeve and a base. The sleeve and the base are coaxially connected. The insertion hole of the sleeve along the axis extends to the lower end face of the base. The feed column is slidably inserted into the insertion hole. The top surface of the base has multiple locking grooves, which are evenly distributed around the axis of the base. The side surface of the base has multiple insertion grooves, which are equally aligned with the locking grooves. Each insertion groove is connected to each locking groove. Multiple support legs are inserted into each insertion groove, and tensioning bolts screwed onto the support legs are inserted into the locking grooves.

[0006] Each of the aforementioned legs includes a main leg, an adjustable leg, a pneumatic rod, a suction cup, an upper plate, and a lower plate. The pneumatic rod is installed in the main leg, and the telescopic end of the pneumatic rod protrudes from the bottom surface of the main leg. The adjustable leg is fixedly installed at the telescopic end of the pneumatic rod. The suction cup is fixedly installed on the bottom surface of the adjustable leg, and an air pump is fixedly embedded in the adjustable leg. The air nozzle of the air pump is connected to the air passage of the suction cup.

[0007] The upper plate is fixedly mounted on the side wall of the main leg and located at the upper end of the main leg. A through threaded hole is opened on the upper plate, and the tensioning bolt is screwed into the threaded hole. The lower plate is fixedly mounted on the side wall of the main leg and located below the upper plate. An adjustment gap is provided between the lower plate and the upper plate. The lower end of the tensioning bolt presses against the upper surface of the lower plate. A button is provided at the top of each main leg. The button is used to control the extension and retraction of the pneumatic rod.

[0008] The aircraft bolt hole drilling device also includes a positioning frame, which includes a positioning ring, a top frame, a handle, and multiple connecting rods. The positioning frame is slidably inserted into the base along the axial direction of the base. Multiple sliding holes penetrating the upper and lower surfaces are opened on the base. The multiple connecting rods are correspondingly slidably inserted into the multiple sliding holes. The top frame is fixedly connected to the end of the multiple connecting rods located on the upper end face of the base. The positioning ring is fixedly connected to the end of the multiple connecting rods located on the lower end face of the base. The handle is fixedly installed on the top surface of the top frame.

[0009] A flat groove is provided on the lower end surface of the base. The flat groove is aligned with the positioning ring. A magnetic piece one is embedded in the flat groove. A magnetic piece two is fixedly installed on the positioning ring. A magnetic piece three is fixedly installed on the surface of the top frame facing the upper end surface of the base. A magnetic piece four is fixedly installed on the upper end surface of the base at a position opposite to the magnetic piece three.

[0010] Multiple laser lights are evenly distributed around the axis of the base, the beam directions of the multiple laser lights are tilted, the beams of the multiple laser lights intersect at the axis of the base, and the intersection point of the multiple laser lights is located on the plane of the positioning ring after the positioning frame is pushed out.

[0011] The beneficial effects of this utility model are as follows: the multiple legs of the device can be freely adjusted in position, which facilitates the overall positioning of the device; the device is equipped with a laser light to assist in hole positioning and ensure accurate hole opening; the device is equipped with a positioning frame to facilitate the positioning of the legs and keep the hole aligned; the multiple legs are locked in position by tensioning, which is simple to operate, highly stable, and has a good hole opening effect. Attached Figure Description

[0012] In the attached diagram:

[0013] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 is a schematic diagram of the positioning frame extension effect of this utility model;

[0015] Figure 3 is a schematic diagram of the support leg structure of this utility model;

[0016] Figure 4 is a schematic diagram of the bottom structure of the base of this utility model;

[0017] Figure 5 is a schematic diagram of the positioning frame structure of this utility model;

[0018] In the diagram: 1. Base; 2. Feed column; 3. Support leg; 4. Positioning frame; 5. Drive motor 1; 6. Drill bit; 7. Laser light; 11. Sleeve; 12. Base; 13. Locking slot; 14. Insertion slot; 15. Flat insertion slot; 21. Drill bit chuck; 31. Main leg; 32. Adjusting leg; 33. Pneumatic rod; 34. Suction cup; 35. Upper plate; 36. Lower plate; 37. Tensioning bolt; 38. Button; 41. Positioning ring; 42. Connecting rod; 43. Top frame; 44. Handle. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] A drilling device for aircraft bolt holes includes a base 1, a feed column 2, a drive motor 5, multiple support legs 3, and multiple laser lights 7. The feed column 2 is coaxially slidably inserted into the base 1. The second drive motor is fixedly installed at the working end of the feed column 2. The output end of the second drive motor drives and installs a drill bit chuck 21. The drill bit 6 is clamped in the drill bit chuck 21. The multiple support legs 3 are movably inserted into the base 1, supporting the base 1 between the base 1 and the workpiece and surrounding the drill bit 6. The first drive motor 5 is fixedly installed on the outer wall of the base 1. The drive end of the first drive motor 5 drives the feed column 2 to slide linearly along the axis to perform drilling work through a gear and rack pair. The multiple laser lights 7 are fixedly installed on the lower end face of the base 1 for drilling hole alignment.

[0021] The base 1 includes a sleeve 11 and a base 12. The sleeve 11 and the base 12 are coaxially connected. An insertion hole on the sleeve 11 extends to the lower end face of the base 12. A feed column 2 is slidably inserted into the insertion hole. Teeth are machined on the column body of the feed column 2. A drive gear is connected to the drive end of the drive motor 5. The drive gear passes through the insertion hole and meshes with the teeth for transmission. Multiple locking grooves 13 are formed on the top surface of the base 12. The slots 13 are evenly distributed around the axis of the base 1. Multiple insertion slots 14 are opened on the side surface of the base 12. The insertion slots 14 and the locking slots 13 are equally aligned. Each insertion slot 14 is connected to each locking slot 13. Multiple support legs 3 are inserted into each insertion slot 14. The tensioning bolts 37 screwed on the support legs 3 are inserted into the locking slots 13. The support legs 3 are inserted into the insertion slots 14. Tightening the tensioning bolts 37 adjusts the tension of the support legs 3 in the insertion slots 14.

[0022] Each of the aforementioned legs 3 includes a main leg 31, an adjusting leg 32, a pneumatic rod 33, a suction cup 34, an upper plate 35, and a lower plate 36. The pneumatic rod 33 is installed in the main leg 31, and the telescopic end of the pneumatic rod 33 protrudes from the bottom surface of the main leg 31. The adjusting leg 32 is fixedly installed at the telescopic end of the pneumatic rod 33. The suction cup 34 is fixedly installed on the bottom surface of the adjusting leg 32, and an air pump is fixedly embedded in the adjusting leg 32. The air nozzle of the air pump is connected to the air passage of the suction cup 34. The suction cup 34 abuts against the workpiece, and the air pump operates to make the suction cup 34 adhere to the workpiece, thus achieving a stable connection between the device and the workpiece.

[0023] The upper plate 35 is fixedly mounted on the side wall of the main leg 31 and located at the upper end of the main leg 31. A through threaded hole is opened on the upper plate 35, and the tensioning bolt 37 is screwed into the threaded hole. The lower plate 36 is fixedly mounted on the side wall of the main leg 31 and located below the upper plate 35. An adjustment gap is provided between the lower plate 36 and the upper plate 35. The lower end of the tensioning bolt 37 presses against the upper surface of the lower plate 36. A button 38 is provided at the top of each main leg 31. The button 38 is used to control the extension and retraction of the pneumatic rod 33.

[0024] The aircraft bolt hole drilling device also includes a positioning frame 4, which includes a positioning ring 41, a top frame 43, a handle 44, and multiple connecting rods 42. The positioning frame 4 is slidably inserted into the base 12 along the axial direction of the base 1. Multiple sliding holes penetrating the upper and lower surfaces are opened on the base 12. The multiple connecting rods 42 are correspondingly slidably inserted into the multiple sliding holes. The top frame 43 is fixedly connected to the end of the multiple connecting rods 42 located on the upper end face of the base 12. The positioning ring 41 is fixedly connected to the end of the multiple connecting rods 42 located on the lower end face of the base 12. The handle 44 is fixedly set on the top surface of the top frame 43. By holding the handle 44, the positioning frame 4 is pulled to slide along the axial direction on the base 1, that is, the positioning ring 41 is moved so that it abuts against the workpiece or retracts to the lower end face of the base 12. The length of the positioning frame 4 after it is extended is greater than the length of the support leg 3 when it is shortened.

[0025] A flat groove 15 is provided on the lower end surface of the base 12. The flat groove 15 is aligned with the positioning ring 41. A magnetic piece 1 is embedded in the flat groove 15. A magnetic piece 2 is fixedly installed on the positioning ring 41. A magnetic piece 3 is fixedly installed on the surface of the top frame 43 facing the upper end surface of the base 12. A magnetic piece 4 is fixedly installed on the upper end surface of the base 12 at a position opposite to the magnetic piece 3. When the positioning frame 4 is pulled up and retracted, the positioning ring 41 is embedded in the flat groove 15 and the magnetic pieces 1 and 2 attract each other. When the positioning frame 4 is pushed down, the top frame 43 abuts against the upper end surface of the base 12 and the magnetic pieces 3 and 4 attract each other.

[0026] Multiple laser lights 7 are evenly distributed around the axis of the base 1, the beam directions of the multiple laser lights 7 are tilted, the beams of the multiple laser lights 7 intersect at the axis of the base 1, and the intersection point of the beams of the multiple laser lights 7 is located on the plane of the positioning ring 41 after the positioning frame 4 is pushed out.

[0027] Working principle: Before using the device, ensure that the drill bit 6 and the positioning frame 4 are in the retracted position on the base 1, the tensioning bolt 37 is kept loose, and the support leg 3 can be freely adjusted in position.

[0028] When performing the drilling operation, move the entire device to the position to be drilled, turn on multiple laser lights 7 so that the beam intersection falls on the workpiece surface, and adjust the beam intersection to align with the point to be drilled. Then, push out the positioning frame 4 so that the positioning ring 41 abuts against the workpiece. At this time, hold the support leg 3 and adjust its position so that the support leg 3 can stably support the device in a position that can stably connect it. Press the button 38 to extend the pneumatic rod 33 to an appropriate length so that the suction cup 34 can adhere to the pre-selected position. After the suction cup 34 is firmly attached, tighten the tensioning bolt 37 to widen the gap between the upper plate 35 and the lower plate 36, so that the upper plate 35 and the lower plate 36 are tensioned in the insertion slot 14, thereby locking the position of the support leg 3. After locking the position of each support leg 3 one by one, retract the positioning frame 4. Then, start the drive motor 1 5 to extend the feed column 2 toward the workpiece, and start the drive motor 2 to drive the drill bit 6 to rotate and complete the hole processing.

[0029] After the hole machining is completed, retract the feed column 2, and then release the multiple suction cups 34 to remove the device from the machining position.

[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aircraft bolt hole drilling apparatus, characterized by: The device includes a base (1), a feed column (2), a drive motor (5), multiple legs (3), and multiple laser lights (7). The feed column (2) is coaxially slidably inserted into the base (1). The second drive motor is fixedly installed at the working end of the feed column (2). The output end of the second drive motor drives and installs a drill chuck (21). The drill bit (6) is clamped in the drill chuck (21). The multiple legs (3) are movably inserted into the base (1). The multiple legs (3) support the base (1) and the workpiece and surround the drill bit (6). The first drive motor (5) is fixedly installed on the outer wall of the base (1). The drive end of the first drive motor (5) drives the feed column (2) to slide linearly along the axis to perform drilling work through a gear and rack pair. The multiple laser lights (7) are fixedly installed on the lower end face of the base (1) for drilling hole alignment.

2. The aircraft bolt hole drilling device according to claim 1, characterized in that: The base (1) includes a sleeve (11) and a base (12). The sleeve (11) and the base (12) are coaxially connected. The insertion hole of the sleeve (11) along the axis extends to the lower end face of the base (12). The feed column (2) is slidably inserted into the insertion hole. The top surface of the base (12) has multiple locking grooves (13). The multiple locking grooves (13) are evenly distributed around the axis of the base (1). The side surface of the base (12) has multiple insertion grooves (14). The insertion grooves (14) and the locking grooves (13) are equally aligned. Each insertion groove (14) is connected to each locking groove (13). Multiple support legs (3) are respectively inserted into each insertion groove (14). The tensioning bolts (37) screwed on the support legs (3) are inserted into the locking grooves (13).

3. An aircraft bolt hole punch apparatus as defined in claim 2, wherein: Each of the aforementioned legs (3) includes a main leg (31), an adjustable leg (32), a pneumatic rod (33), a suction cup (34), an upper plate (35), and a lower plate (36). The pneumatic rod (33) is installed in the main leg (31), and the telescopic end of the pneumatic rod (33) protrudes from the bottom surface of the main leg (31). The adjustable leg (32) is fixedly installed at the telescopic end of the pneumatic rod (33). The suction cup (34) is fixedly installed on the bottom surface of the adjustable leg (32), and an air pump is fixedly embedded in the adjustable leg (32). The air nozzle of the air pump is connected to the air passage of the suction cup (34). The upper plate (35) The upper plate (35) is fixedly installed on the side wall of the main leg (31) and located at the upper end of the main leg (31). A through threaded hole is opened on the upper plate (35), and the tensioning bolt (37) is screwed into the threaded hole. The lower plate (36) is fixedly installed on the side wall of the main leg (31) and located below the upper plate (35). An adjustment gap is provided between the lower plate (36) and the upper plate (35). The lower end of the tensioning bolt (37) presses against the upper surface of the lower plate (36). A button (38) is provided at the top of each main leg (31). The button (38) is used to control the extension and retraction of the pneumatic rod (33).

4. An aircraft bolt hole punch apparatus as defined in claim 3, wherein: The aircraft bolt hole drilling device also includes a positioning frame (4), which includes a positioning ring (41), a top frame (43), a handle (44), and multiple connecting rods (42). The positioning frame (4) is slidably inserted into the base (12) along the axial direction of the base (1). Multiple sliding holes penetrating the upper and lower surfaces are opened on the base (12). Multiple connecting rods (42) are correspondingly slidably inserted into the multiple sliding holes. The top frame (43) is fixedly connected to the end of the multiple connecting rods (42) located on the upper end face of the base (12). The positioning ring (41) is fixedly connected to the end of the multiple connecting rods (42) located on the lower end face of the base (12). The handle (44) is fixedly set on the top surface of the top frame (43).

5. An aircraft bolt hole punch apparatus as defined in claim 4, wherein: A flat groove (15) is provided on the lower end surface of the base (12). The flat groove (15) is aligned with the positioning ring (41). A magnetic piece 1 is embedded in the flat groove (15). A magnetic piece 2 is fixedly installed on the positioning ring (41). A magnetic piece 3 is fixedly installed on the surface of the top frame (43) facing the upper end surface of the base (12). A magnetic piece 4 is fixedly installed on the upper end surface of the base (12) at a position opposite to the magnetic piece 3.

6. An aircraft bolt hole punch apparatus as defined in claim 5, wherein: Multiple laser lights (7) are evenly distributed around the axis of the base (1). The beam directions of the multiple laser lights (7) are tilted. The beams of the multiple laser lights (7) intersect at the axis of the base (1). The intersection point of the beams of the multiple laser lights (7) is located on the plane of the positioning ring (41) after the positioning frame (4) is pushed out.

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