Combined type hole guiding device

Abstract

The utility model discloses a combined type hole guiding device which is characterized in that an upper pressing plate and a lower pressing plate are oppositely arranged to form a main body structure of the combined type hole guiding device; the hole guiding end of the combined hole guiding device and the drill bushing seat are vertically and fixedly installed on the upper end face of the upper pressing plate in the axial direction, the drill bushing is installed in the drill bushing seat in an embedded mode, the positioning guide pin is vertically and fixedly installed on the lower end face of the lower pressing plate in the axial direction, and the drill bushing and the positioning guide pin are coaxially installed. An interlayer gasket is clamped among the handheld end, the upper pressing plate and the lower pressing plate of the combined hole guiding device, an upper handle cover is arranged on the upper end face of the upper pressing plate, and a lower handle cover is arranged on the lower end face of the lower pressing plate. According to the combined type hole guiding device, the interlayer gaskets with the corresponding thicknesses can be replaced to meet the hole guiding requirements of parts with different thicknesses, and the drill bushings can be replaced to meet the hole making requirements of different hole diameters; the hole guiding device is convenient to operate, wide in application range and capable of improving the quality and efficiency of hole guiding operation.

Description

Technical Field

[0001] This invention relates to, but is not limited to, the field of aircraft assembly technology, and particularly to a combined hole punch. Background Technology

[0002] In aircraft manufacturing and maintenance, it is often necessary to locate and drill assembly holes on another part based on existing bolt holes or rivet holes on the airframe structure. For example, when installing skin-like components such as removable covers, fairings, and fairings, holes have already been drilled and mounting nuts have been installed on the corresponding frame. Operators need to fit the repaired part onto the frame, drill holes at the corresponding positions on the skin, and finally connect and fix it to the mounting nuts on the frame with bolts.

[0003] Due to the hole-making requirements, since the reference holes on the skeleton are located below the skin, and these structures are often in closed or semi-closed areas, it is difficult to guide the holes from the inside to the skin. Therefore, special processes and tools are needed to bring the nut holes on the support plate to the outer skin. Early manual scribing and positioning hole-making methods were not only inaccurate but also inefficient. While conventional tweezer-like hole guides are simple in structure, they suffer from low positioning accuracy and poor hole perpendicularity, easily leading to hole position deviations, oblique holes, elliptical holes, and damage to the reference holes. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned technical problems. This invention provides a combined hole-making device to address the issues of low positioning accuracy, low hole-making efficiency, and the tendency for hole position deviation, oblique holes, elliptical holes, and damaged reference holes in existing hole-making methods.

[0005] The technical solution of the present invention: The present invention provides a combined drilling tool, including: an upper pressure plate 1, a lower pressure plate 2, a drill sleeve 3, a drill sleeve seat 4, a positioning guide pin 5, an upper handle cover 6, a sandwich gasket 7, a lower handle cover 8, and a flat round head screw 10.

[0006] The upper pressure plate 1 and the lower pressure plate 2 are arranged opposite to each other to form the main structure of the combined hole drill. The hole drill end of the combined hole drill has a drill sleeve seat 4 that is vertically fixed to the upper end face of the upper pressure plate 1 with its axial direction, and a drill sleeve 3 is embedded in the drill sleeve seat 4. The positioning guide pin 5 is vertically fixed to the lower end face of the lower pressure plate 2 with its axial direction, and the drill sleeve 3 and the positioning guide pin 5 are coaxially installed.

[0007] The handheld end of the combined hole drill has a sandwiched gasket 7 between the upper pressure plate 1 and the lower pressure plate 2. The upper pressure plate 1 has an upper handle cover 6, and the lower pressure plate 2 has a lower handle cover 8. At least two flat round head screws 10 are used to sequentially pass through and fix the handle cover 6, the upper pressure plate 1, the sandwiched gasket 7, the lower pressure plate 2, and the lower handle cover 8.

[0008] Optionally, in the combined aperture as described above,

[0009] The combined hole-making device involves clamping the hole-making skin 100 between the upper pressure plate 1 and the lower pressure plate 2 at the hole-making end, with the skeleton 200 fitted onto the lower end face of the lower pressure plate 2, and positioning guide pin 5 inserted into the reference hole of the skeleton 200 for positioning, thereby enabling the drill bit to make a hole along the guide hole of the drill sleeve 3.

[0010] Optionally, in the combined aperture as described above,

[0011] The drill bushing 3 is a detachable structure. The drill bushing 3 and the drill bushing seat 4 are connected by threads. The guide hole of the drill bushing 3 is selected according to the diameter requirements of the hole to be drilled.

[0012] Optionally, in the combined aperture as described above,

[0013] The interlayer gasket 7 is a quick-detachable structure, so that the interlayer gasket 7 of appropriate thickness can be selected according to the thickness of the part being processed.

[0014] Optionally, in the combined aperture as described above,

[0015] The sandwich gasket 7 has at least two U-shaped through slots, the number of which is the same as the number of flat round head screws 10. The slot openings extend outward from the through position of the flat round head screws 10 to the edge of the sandwich gasket.

[0016] The sandwich gasket 7 with a U-shaped through groove is used to push the sandwich pad 7 out from the end with the groove by loosening the flat round head screw 10, so that the sandwich pad 7 to be replaced can be inserted and the flat round head screw 10 can be tightened to complete the replacement.

[0017] Optionally, in the combined drill bit as described above, the upper end face of the positioning guide pin 5 is provided with a blind hole, so that after the drill bit penetrates the skin 100 clamped between the upper pressure plate 1 and the lower pressure plate 2, the operator can promptly capture the feel of the drill bit contacting the gap, thereby controlling the feed rate of the drill bit.

[0018] Optionally, the combined hole punch as described above also includes: an anti-slip pad 9;

[0019] The anti-slip pad 9 is attached to the middle of the upper end face of the upper pressure plate 1, which is the position where the combined hole drill is pressed during operation.

[0020] The beneficial effects of the present invention are as follows: The present invention provides a combined hole drill bit, which forms the main structure of the combined hole drill bit through the upper pressure plate 1 and the lower pressure plate 2 arranged opposite to each other; at the hole drill end of the combined hole drill bit, the drill sleeve seat 4 is fixedly installed vertically on the upper end face of the upper pressure plate 1 with its axial direction, the drill sleeve 3 is embedded in the drill sleeve seat 4, and the positioning guide pin 5 is fixedly installed vertically on the lower end face of the lower pressure plate 2 with its axial direction, and the drill sleeve 3 and the positioning guide pin 5 are coaxially installed; at the hand handle end of the combined hole drill bit, a sandwich gasket 7 is sandwiched between the upper pressure plate 1 and the lower pressure plate 2, an upper handle cover 6 is provided on the upper end face of the upper pressure plate 1, and a lower handle cover 8 is provided on the lower end face of the lower pressure plate 2, and at least two flat round head screws 10 are used to sequentially penetrate and fix the handle cover 6, the upper pressure plate 1, the sandwich gasket 7, the lower pressure plate 2 and the lower handle cover 8. The hole-making process is performed using the lead-in end of a combined hole-making device. The skin to be drilled is clamped at the lead-in end of the upper pressure plate 1 and the lower pressure plate 2. The skeleton 200 is fitted against the lower end face of the lower pressure plate 2, and the positioning guide pin 5 is inserted into the reference hole of the skeleton 200 for positioning, thereby allowing the drill bit to drill along the guide hole of the drill sleeve 3. The combined hole-making device provided in this embodiment of the invention has the following beneficial effects:

[0021] First, in this utility model, a drill sleeve 3 is added to the upper pressure plate 1, which improves the coaxiality and perpendicularity of the hole making; the drill sleeve 3 and the drill sleeve seat 4 are connected by a threaded connection, which ensures the stability of the drill sleeve 3 and avoids the situation of the drill sleeve 3 sliding and falling off during use.

[0022] Secondly, this utility model adopts a modular structure, which is easy to disassemble and has a wide range of applications, thus improving the quality and efficiency of pre-drilling operations. In addition, the pre-drilling requirements of parts of different thicknesses can be met by replacing the interlayer gaskets 7 of different thicknesses, and the drilling requirements of different hole diameters can be met by replacing the drill bushings 3.

[0023] Third, in this utility model, the blind hole at the upper end of the positioning guide pin 5 is beneficial for controlling the feed of the drill bit and avoiding damage to the tool and parts.

[0024] Fourth, in this utility model, the silicone anti-slip pad 9 on the upper surface of the upper pressure plate 1 increases the friction of the hand and improves the stability of operation. Attached Figure Description

[0025] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of a combined aperture device according to an embodiment of the present invention;

[0027] Figure 2 for Figure 1Exploded view of the combined aperture device provided in the illustrated embodiment;

[0028] Figure 3 To adopt Figure 1 The illustrated embodiment provides a schematic diagram of the principle of using a combined hole drill to perform hole drilling.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Upper pressure plate; 2. Lower pressure plate; 3. Drill bushing; 4. Drill bushing seat; 5. Positioning guide pin; 6. Upper handle cover; 7. Interlayer gasket; 8. Lower handle cover; 9. Anti-slip pad; 10. Flat round head screw; 100. Skin; 200. Frame; 201. Support plate nut. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0032] As explained in the background section, there is a technological requirement for pre-drilling in machine manufacturing and maintenance. However, existing pre-drilling methods not only suffer from low positioning accuracy and low drilling efficiency, but also easily lead to issues such as hole position deviation, oblique holes, elliptical holes, and damage to reference holes. Poor hole quality results in rework and parts scrapping, and also significantly affects the fatigue life of the machine structure.

[0033] To meet the needs of aircraft manufacturing and maintenance and avoid the problems of common drilling methods and tools, this utility model provides a combined drilling tool, which is suitable for positioning drilling between the skin and the frame in non-open areas.

[0034] The present invention provides the following specific embodiments, which can be combined with each other. For the same or similar concepts or processes, they may not be described again in some embodiments.

[0035] Figure 1 This is a schematic diagram of the overall structure of a combined aperture device according to an embodiment of the present invention; Figure 2 for Figure 1 An exploded view of the combined aperture device provided in the illustrated embodiment. See also... Figure 1 and Figure 2 As shown, the combined drilling tool provided in this embodiment of the invention includes: an upper pressure plate 1, a lower pressure plate 2, a drill sleeve 3, a drill sleeve seat 4, a positioning guide pin 5, an upper handle cover 6, a sandwich gasket 7, a lower handle cover 8, and a flat round head screw 10.

[0036] like Figure 1 and Figure 2As shown, in the combined hole-reamer provided in this embodiment of the invention, the upper pressure plate 1 and the lower pressure plate 2 are arranged opposite to each other to form the main structure of the combined hole-reamer.

[0037] At the lead end of the combined lead hole, the drill sleeve seat 4 is mounted vertically on the upper end face of the upper pressure plate 1 and welded to the upper pressure plate 1 as a whole; the positioning guide pin 5 is mounted vertically on the lower end face of the lower pressure plate 2 and welded to the lower pressure plate 2 as a whole; the drill sleeve 3 is fixedly installed inside the drill sleeve seat 4; the central guide hole of the drill sleeve 3 and the positioning guide pin 5 are coaxially installed.

[0038] At the handheld end of the combined hole drill bit, a sandwich gasket 7 is sandwiched between the upper pressure plate 1 and the lower pressure plate 2. An upper handle cover 6 is provided on the upper end face of the upper pressure plate 1, and a lower handle cover 8 is provided on the lower end face of the lower pressure plate 2. At least two flat round head screws 10 are used to sequentially pass through and fix the handle cover 6, the upper pressure plate 1, the sandwich gasket 7, the lower pressure plate 2, and the lower handle cover 8. It should be noted that the lower handle cover 8 has two threaded blind holes that cooperate with the flat round head screws 10.

[0039] Figure 3 To adopt Figure 1 The schematic diagram shown in the embodiment illustrates the principle of the combined hole-making device performing hole-making. Figure 3 As shown, the method of performing hole drilling using the combined hole drill provided in this embodiment of the invention is as follows:

[0040] During the hole-making process, the operator first places the skin 100 on the skeleton 200, and then places the lower pressure plate 2 of the combined hole-making tool between the skin 100 and the skeleton 200. It is necessary to ensure that the positioning guide pin 5 enters the reference hole on the skeleton 100. The reference hole is, for example, the support plate nut hole, and the support plate nut 201 is installed below the hole. After the upper pressure plate 1 and the lower pressure plate 2 clamp the skin 100, the operator drills the pilot hole on the outer surface of the skin 100 through the drill bushing 3.

[0041] In one embodiment of the present invention, the drill sleeve 3 is a detachable structure. The drill sleeve 3 and the drill sleeve seat 4 are connected by threads. The drill sleeve 3 can be replaced according to the diameter requirements of the hole to be drilled, so that the guide hole of the selected drill sleeve is adapted to the diameter of the hole to be drilled.

[0042] In one implementation of this invention, the interlayer gasket 7 is a quick-detachable structure, so that the interlayer gasket 7 of appropriate thickness can be selected according to the thickness of the processed part.

[0043] It should be noted that the hole-reaming device provided by this utility model adopts a modular structure, allowing for the replacement of interlayer gaskets of appropriate thickness to meet the hole-reaming requirements of parts with different thicknesses, and also allowing for the replacement of drill bushings to meet the hole-making requirements of different diameters. Furthermore, the modular hole-reaming device provided by this utility model is easy to operate, has a wide range of applications, and can improve the quality and efficiency of hole-reaming operations.

[0044] One implementation of this method is as follows: Figure 2 As shown, the sandwich gasket 7 has at least two U-shaped through slots, the slot openings of which extend outwards from the point where the flat round head screw 10 passes to the edge of the sandwich gasket. This U-shaped through-slot structure facilitates the disassembly and replacement of the sandwich gasket 7, avoiding the workload of disassembling and assembling other components. The specific replacement method is as follows: after slightly loosening the flat round head screw 10, push the sandwich gasket 7 out from the end with the slot, insert the new sandwich gasket 7, and then tighten the flat round head screw 10.

[0045] In one implementation of this invention, such as Figure 3 As shown, a blind hole with a depth of 2mm is provided on the upper end face of the positioning guide pin 5. The purpose of setting this blind hole is that after the drill bit penetrates the skin 100, the operator can promptly detect the contact gap of the drill bit, thereby controlling the feed rate of the drill bit and avoiding damage to the tool and parts.

[0046] In one implementation of this invention, such as Figure 1 As shown, to increase hand grip and improve operational stability, the combined drill bit also includes an anti-slip pad 9; this anti-slip pad 9 is attached to the middle of the upper end face of the upper pressure plate 1, which is the position where the thumb presses during operation. The material of the anti-slip pad 9 is, for example, silicone.

[0047] The combined drilling tool provided in this embodiment of the invention forms the main structure of the combined drilling tool through an upper pressure plate 1 and a lower pressure plate 2 arranged opposite to each other. At the drilling end of the combined drilling tool, the drill sleeve seat 4 is fixedly installed vertically on the upper end face of the upper pressure plate 1, and the drill sleeve 3 is embedded in the drill sleeve seat 4. The positioning guide pin 5 is fixedly installed vertically on the lower end face of the lower pressure plate 2, and the drill sleeve 3 and the positioning guide pin 5 are coaxially installed. At the handheld end of the combined drilling tool, a sandwich gasket 7 is sandwiched between the upper pressure plate 1 and the lower pressure plate 2. An upper handle cover 6 is provided on the upper end face of the upper pressure plate 1, and a lower handle cover 8 is provided on the lower end face of the lower pressure plate 2. At least two flat round head screws 10 are used to sequentially penetrate and fix the handle cover 6, the upper pressure plate 1, the sandwich gasket 7, the lower pressure plate 2, and the lower handle cover 8. The hole-making process is performed using the lead-in end of a combined hole-making device. The skin to be drilled is clamped at the lead-in end of the upper pressure plate 1 and the lower pressure plate 2. The skeleton 200 is fitted against the lower end face of the lower pressure plate 2, and the positioning guide pin 5 is inserted into the reference hole of the skeleton 200 for positioning, thereby allowing the drill bit to drill along the guide hole of the drill sleeve 3. The combined hole-making device provided in this embodiment of the invention has the following beneficial effects:

[0048] First, in this utility model, a drill sleeve 3 is added to the upper pressure plate 1, which improves the coaxiality and perpendicularity of the hole making; the drill sleeve 3 and the drill sleeve seat 4 are connected by a threaded connection, which ensures the stability of the drill sleeve 3 and avoids the situation of the drill sleeve 3 sliding and falling off during use.

[0049] Secondly, this utility model adopts a modular structure, which is easy to disassemble and has a wide range of applications, thus improving the quality and efficiency of pre-drilling operations. In addition, the pre-drilling requirements of parts of different thicknesses can be met by replacing the interlayer gaskets 7 of different thicknesses, and the drilling requirements of different hole diameters can be met by replacing the drill bushings 3.

[0050] Third, in this utility model, the blind hole at the upper end of the positioning guide pin 5 is beneficial for controlling the feed of the drill bit and avoiding damage to the tool and parts.

[0051] Fourth, in this utility model, the silicone anti-slip pad 9 on the upper surface of the upper pressure plate 1 increases the friction of the hand and improves the stability of operation.

[0052] While the embodiments disclosed in this invention are as described above, they are merely illustrative of the embodiments to facilitate understanding of the invention and are not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and variations in the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection for this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A combined hole-piercing device, characterized in that, include: Upper pressure plate (1), lower pressure plate (2), drill bushing (3), drill bushing seat (4), positioning guide pin (5), upper handle cover (6), interlayer gasket (7), lower handle cover (8), flat round head screw (10); The upper pressure plate (1) and the lower pressure plate (2) are arranged opposite to each other to form the main structure of the combined hole guide; the hole guide end of the combined hole guide has a drill sleeve seat (4) fixedly installed on the upper end face of the upper pressure plate (1) with its axial direction, and a drill sleeve (3) is embedded in the drill sleeve seat (4). The positioning guide pin (5) is fixedly installed on the lower end face of the lower pressure plate (2) with its axial direction, and the drill sleeve (3) and the positioning guide pin (5) are coaxially installed. The handheld end of the combined hole drill has a sandwiched gasket (7) between the upper pressure plate (1) and the lower pressure plate (2). The upper pressure plate (1) has an upper handle cover (6), and the lower pressure plate (2) has a lower handle cover (8). At least two flat round head screws (10) are used to sequentially pass through and fix the handle cover (6), the upper pressure plate (1), the sandwiched gasket (7), the lower pressure plate (2), and the lower handle cover (8).

2. The combined hole-piercing device according to claim 1, characterized in that, The combined hole-making device clamps the hole-making skin (100) to be made on the hole-making end of the upper pressure plate (1) and the lower pressure plate (2), and the skeleton (200) is fitted on the lower end face of the lower pressure plate (2), so that the positioning guide pin (5) is inserted into the reference hole of the skeleton (200) for positioning, thereby making the drill bit make a hole along the guide hole of the drill sleeve (3).

3. The combined hole-piercing device according to claim 1, characterized in that, The drill bushing (3) is a detachable structure. The drill bushing (3) and the drill bushing seat (4) are connected by threads. The guide hole of the drill bushing (3) is selected according to the diameter requirements of the hole to be drilled.

4. The combined hole-piercing device according to claim 1, characterized in that, The interlayer gasket (7) is a quick-detachable structure, so that the interlayer gasket (7) of the appropriate thickness can be selected according to the thickness of the processed part.

5. The combined hole-piercing device according to claim 4, characterized in that, The sandwich gasket (7) has at least two U-shaped through slots, the number of which is the same as the number of flat round head screws (10), and the slot openings extend outward from the through position of the flat round head screws (10) to the edge of the sandwich gasket. The U-shaped through-slot of the sandwich gasket (7) is used to push the sandwich gasket (7) out from the end with the slot by loosening the flat round head screw (10), so that the replacement sandwich gasket (7) can be installed and the flat round head screw (10) can be tightened to complete the replacement.

6. The combined hole-piercing device according to any one of claims 1 to 5, characterized in that, The upper end face of the positioning guide pin (5) has a blind hole, so that after the drill bit drills through the skin (100) clamped between the upper pressure plate (1) and the lower pressure plate (2), the operator can promptly capture the feel of the drill bit contacting the gap, thereby controlling the feed amount of the drill bit.

7. The combined hole-piercing device according to any one of claims 1 to 5, characterized in that, Also includes: Anti-slip mat (9); The anti-slip pad (9) is pasted on the middle of the upper end face of the upper pressure plate (1), which is the position to be pressed when the combined hole drill is in operation.

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