CN116967503A - Hole making auxiliary device and hole making method for aircraft curved surface laminated structure - Google Patents
Hole making auxiliary device and hole making method for aircraft curved surface laminated structure Download PDFInfo
- Publication number
- CN116967503A CN116967503A CN202311004755.4A CN202311004755A CN116967503A CN 116967503 A CN116967503 A CN 116967503A CN 202311004755 A CN202311004755 A CN 202311004755A CN 116967503 A CN116967503 A CN 116967503A
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- China
- Prior art keywords
- guide rod
- outer support
- hole making
- curved surface
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 34
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000003475 lamination Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The utility model discloses a hole making auxiliary device and a hole making method of an aircraft curved surface laminated structure, wherein the hole making auxiliary device comprises a base, an outer side support and a drilling jig; the drill jig is arranged in the outer support seat and is in movable fit with the outer support seat, a locking piece for relatively fixing the outer support seat and the drill jig is arranged on the outer support seat, and a plurality of supporting feet are fixed at the bottom of the outer support seat; the drill jig is provided with a guide channel in a penetrating way, and a guide rod in clearance fit with the guide channel is fixed on the base. The utility model can improve the quality and qualification rate of hole making and reduce the out-of-tolerance and rework rate of hole making; the auxiliary hole making device has the advantages of simple structure and convenient operation, can reduce the excessive requirement on the skill of operators, has good adjustability and can adapt to the hole making requirements of different apertures.
Description
Technical Field
The utility model relates to the technical field of aircraft assembly, in particular to an auxiliary device for hole making of an aircraft curved surface laminated structure and a method for hole making of the aircraft curved surface laminated structure.
Background
The workpiece 100 shown in fig. 1 is a curved lamination structure adopted by an aerodynamic profile surface of an airplane, the outer side of the overall structure of the workpiece connecting piece 110 after the workpiece connecting piece is installed is a countersunk surface in a curved surface form, and the inner side is a nut surface; after the workpiece connecting piece 100 is installed, the clearance between the nut and the inner side surface is required to be uniform, the countersink is perpendicular to the hole axis, and the clearance between the countersink side of the bolt and the countersink is uniform, so that the stress of the curved surface laminated structure is uniform, and the connecting quality is good.
The hole making work of the curved surface laminated structure is usually to drill a primary hole on the inner side nut surface firstly, then to drill a hole on the outer side buried surface, and is limited by the structure of the buried surface, and when the hole is drilled, the workpiece is difficult to fix, so that the positioning is difficult, the drill bit is not easy to apply force, and therefore, the perpendicularity of the hole axis is difficult to control. When the hole is made, the axis of the primary hole is deflected, the subsequent reaming on the buried head surface is difficult to correct, the perpendicularity of the hole is uncontrollable, the perpendicularity of the finally manufactured final hole is out of tolerance, and the workpiece connecting piece 110 is unqualified in installation on the workpiece 100.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the auxiliary hole making device can effectively improve the hole making verticality and has an aircraft curved surface laminated structure.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the auxiliary hole making device comprises a base, an outer support and a drill jig; the drill jig is arranged in the outer support seat and is in movable fit with the outer support seat, a locking piece for relatively fixing the outer support seat and the drill jig is arranged on the outer support seat, and a plurality of supporting feet are fixed at the bottom of the outer support seat; the drill jig is provided with a guide channel in a penetrating way, and a guide rod in clearance fit with the guide channel is fixed on the base. According to the utility model, the drill bit with the guide channel is used for guiding the drill bit during hole making, the guide rod on the base is used for positioning the drill bit through the primary hole on the workpiece, so that the guide rod, the guide channel in the drill bit and the primary hole are all positioned on the same central axis, then the movable outer support is adjusted to a state capable of being stably supported on the curved surface of the workpiece, the outer support is fixed on the drill bit by using the locking piece, so that the outer support and the drill bit are relatively fixed, the subsequent drilling work can be positioned, and the verticality of the final hole is ensured to be qualified by using the positioning of the outer support and the drill guiding of the drill bit during subsequent reaming, thereby improving the hole making quality.
As an improvement of the scheme, the following steps are: the drill jig is a spherical drill jig, and the outer surface of the drill jig is a spherical surface; the outside support is internally provided with a spherical through hole matched with the drill jig, and the outside support is sleeved on the periphery of the drill jig to form rotary fit. In order to improve the application range of the outer bracket, the drill jig with a spherical structure and the universal outer bracket which is matched with the drill jig are adopted, and the outer bracket and the spherical drill jig can rotate, so that the movable range of the outer bracket is wider, and the positioning function can be realized from more angles and more directions.
As an improvement of the scheme, the following steps are: one end of the guide rod, which is not connected with the base, is provided with a thread section, the thread section is connected with a guide rod nut in a threaded manner, and the outer diameter of the guide rod nut is larger than the aperture of the guide channel. According to the utility model, the guide rod is fixed by arranging the threaded matching structure, and the guide rod and the drill jig are tightly pressed after the guide rod is positioned by utilizing the threaded connection between the guide rod nut and the guide rod, so that the guide rod is prevented from shifting in the process of adjusting the outer support, and the stable coaxiality of a guide channel and a primary hole in the drill jig is ensured.
As an improvement of the scheme, the following steps are: the drill jig further comprises a drilling guide sleeve fixed on the drill jig, the drilling guide sleeve is coaxially arranged and communicated with the guide channel in the drill jig, the guide rod sequentially penetrates through the guide channel and the drilling guide sleeve and then is in threaded connection with a guide rod nut, and the outer diameter of the guide rod nut is larger than the aperture of the drilling guide sleeve. According to the utility model, the drilling guide sleeve is additionally arranged on the drilling jig, so that the drill bit can be guided through the drilling guide sleeve in the subsequent hole making work, and the accuracy of hole processing and the perpendicularity of hole making are further improved.
As an improvement of the scheme, the following steps are: the locking piece is a locking screw, a threaded through hole in threaded fit with the locking screw is formed in the outer support, and one end of the locking screw can pass through the threaded through hole and then is abutted against the outer surface of the drilling jig. The locking piece can adopt a structure of a stop pin, a locking screw rod and the like, and the locking screw rod with convenient operation is adopted as a preferable scheme.
As an improvement of the scheme, the following steps are: the device also comprises at least two limiting fulcra fixed on the top surface of the base. According to the utility model, the limiting support is additionally arranged on the base to form limiting fit with the primary hole at the bottom of the workpiece, so that the stability between the base and the workpiece in the positioning process is improved, and the relative deviation of the base and the workpiece in the positioning process is avoided.
The utility model also discloses a hole making method of the aircraft curved surface laminated structure by adopting the hole making auxiliary device of the aircraft curved surface laminated structure, which comprises the following steps:
s1, drilling a primary hole on a workpiece with a curved surface laminated structure, placing a base on a stable horizontal plane and fixing the base, enabling a guide rod to penetrate through the primary hole machined on the workpiece, and enabling the outer peripheral surface of the guide rod to be in non-contact with the wall of the primary hole;
s2, placing a drill jig assembled with the outer support on a curved surface of a workpiece, enabling a guide rod to penetrate through a guide channel of the drill jig, ensuring that the guide rod and the guide channel are positioned on the same axis, and installing a guide rod nut to lock the guide rod;
s3, rotating the outer support to enable supporting legs at the bottom of the outer support to be in stable contact with the curved surface of the workpiece, and locking and fixing the outer support and the drill jig through the locking piece;
s4, unscrewing the guide rod nut, removing the guide rod and the base, and carrying out drilling operation by matching with a drilling jig.
The beneficial effects of the utility model are as follows: according to the utility model, the drill bit with the guide channel is used for guiding the drill bit when the drill bit is used for drilling holes, the guide rod on the base is used for positioning the drill bit through the primary hole on the workpiece, the guide rod passes through the primary hole and the guide channel of the drill bit so as to enable the primary hole and the guide channel of the drill bit to be aligned coaxially, the guide rod, the guide channel in the drill bit and the primary hole are all positioned on the same central axis, then the movable outer support is used for adjusting the outer support to a state capable of stably supporting on the curved surface of the workpiece, the outer support is fixed on the drill bit by the locking piece so that the outer support and the drill bit are relatively fixed, the subsequent drilling work can be positioned, and the positioning of the outer support and the drilling guide of the drill bit can be used for guaranteeing that the perpendicularity of the final hole is qualified during the subsequent reaming, so that the drilling quality and qualification rate are improved, and the out-of-hole drilling and the rework rate are reduced; the auxiliary hole making device has the advantages of simple structure and convenient operation, can reduce the excessive requirement on the skill of operators, has good adjustability and can adapt to the hole making requirements of different apertures.
Drawings
FIG. 1 is a schematic view of a workpiece having a curved lamination structure;
FIG. 2 is an isometric view of an auxiliary hole making apparatus for an aircraft curved laminate structure;
FIG. 3 is a front view of an aperture attachment aid for a curved lamination of an aircraft;
FIG. 4 is a schematic view of the assembly of the outboard seat and the drill jig;
FIG. 5 is a schematic illustration of the cooperation of an auxiliary hole making device with a workpiece in an aircraft curved lamination configuration;
FIG. 6 is a schematic view of the cooperation of the hole making assist device with the workpiece in the aircraft curved surface lamination structure with the base and guide bar removed.
Marked in the figure as: 100-workpiece, 110-workpiece connecting piece, 200-base, 210-limit fulcrum, 300-outside support, 310-locking piece, 320-supporting leg, 330-guide rod, 340-guide rod nut, 400-drill jig and 410-drill guide sleeve.
Detailed Description
In order to facilitate an understanding of the utility model, the utility model is further described below with reference to the accompanying drawings.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", "inner", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or components referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As shown in fig. 2 to 6, the hole making auxiliary device of the aircraft curved surface laminated structure disclosed in the present utility model includes a base 200, an outer support 300 and a jig 400. The base 200 is fixed with a guide rod 330, and the guide rod 330 is vertically fixed on the base 200. The drill jig 400 and the outer support 300 are assembled into a relatively movable positioning structure, a guide channel is arranged in the drill jig 400 in a penetrating manner, the drill jig 400 is used for guiding and limiting a drill bit during hole making, and the drill bit extends to a drilling position through the guide channel in the drill jig 400 to perform drilling work; a plurality of supporting feet 320 are fixed at the bottom of the outer support 300, the outer support 300 can be supported on the outer curved surface of the workpiece 100, which is the aircraft curved surface laminated structure requiring hole making, through the supporting feet 320, and the outer support 300 can be fixed on the drill jig 400 through the locking piece 310; the position and angle of the support feet 320 on the outboard support 300 can be adjusted by relative movement between the drill jig 400 and the outboard support 300; the diameter of the guide channel in the jig 400 is slightly larger than the diameter of the guide rod 330, the outer diameter of the guide rod 330 is slightly smaller than the diameter of the primary hole in the workpiece 100, and the guide rod 330 forms clearance fit with the primary hole and the guide channel in the jig 400 so that the guide rod 330 can pass through the primary hole in the workpiece 100 and the guide channel in the jig 400.
In order to improve the adaptability of the utility model and enable the outer support 300 to realize a larger range of movement, the utility model further provides the drill jig 400 with a spherical surface, and simultaneously correspondingly, a spherical cavity matched with the spherical drill jig is arranged inside the outer support 300 so as to enable the outer support 300 to be matched with the drill jig 400 to form a universal support, and the outer support 300 can rotate in a plurality of ranges relative to the drill jig 400, so that the supporting legs 300 at the bottom of the outer support 300 can achieve a larger range of supporting angles.
As shown in fig. 2 to 5, in order to ensure that the guide rod 330 remains stable and does not deflect after being matched with the guide channel of the jig 400, the guide rod 330 is additionally locked by the guide rod nut 340, and a threaded section is arranged on one end of the guide rod 330, which is not connected with the base 200, i.e. one end of the guide rod 330 extending out of the guide channel of the jig 400, so that the guide rod 330 can form threaded fit with the guide rod nut 340, and meanwhile, the outer diameter of the guide rod nut 340 is limited to be larger than the aperture of the guide channel in the jig 400, after the jig 400 is positioned by the guide rod 330, the guide rod nut 340 can be arranged on the threaded section of the guide rod 330 and the guide rod 330 is fixed by the locking action of the guide rod nut 340, thereby ensuring that the guide rod 330 does not deflect in the subsequent adjusting process of the external support 300, and ensuring that the guide rod 330 is always positioned on the same central axis with the guide channel in the jig 400 and the initial hole on the workpiece 100. Further, a drill jig guide sleeve 410 can be added on the drill jig 400 to improve the guiding effect on the drill bit, and the drill jig guide sleeve 410 is coaxially arranged and communicated with the guiding channel in the drill jig 400; after the drill jig guide sleeve 410 is arranged, the guide rod 330 sequentially passes through the guide channel and the drill guide sleeve 410, and at this time, the guide rod 330 is locked on the drill guide sleeve 410 by adopting the guide rod nut 340, so that the outer diameter of the guide rod nut 340 is larger than the aperture of the drill guide sleeve 410.
A stop pin or a locking screw is used as the locking member 310 in the present utility model, wherein a locking screw having a convenient operation is used as a preferred embodiment. When the locking screw is adopted, a threaded through hole matched with the thread of the locking screw is formed in the outer support 300, one end of the locking screw can pass through the threaded through hole and then is abutted against the outer surface of the drill jig 400, after the outer support 300 is adjusted, the end head of the locking screw can be pressed on the outer surface of the drill jig 400 by screwing the locking screw, and the fixing between the outer support 300 and the drill jig 400 can be completed quickly.
Because the primary holes are required to be drilled on the inner side nut surface of the workpiece 100 in advance when the hole making work is performed, in order to improve the stability of the base 200 and the guide rod 330 on the base 200, as shown in fig. 2 and 3, the utility model utilizes the primary holes to arrange corresponding limit fulcra 210 on the base 200, the limit fulcra 210 are circularly arranged, and the guide rod 330 is positioned at the center of a circle; when the guide rod 330 passes through the primary hole of the workpiece 100, the limit pivot 210 on the base 200 can be abutted against the wall of the primary hole to form limit fit, so that the base 200 and the workpiece 100 cannot move relatively, and the guide rod 330 can be positioned through the limit action of the limit pivot 210, so that the guide rod 330 and the primary hole machined on the workpiece 100 are located on the same central axis.
The utility model also discloses a hole making method by adopting the auxiliary hole making device with the aircraft curved surface laminated structure, and the hole making is carried out according to the following steps:
s1, drilling a primary hole on the inner side nut surface of a workpiece 100 with a curved surface laminated structure, as shown in FIG. 5, placing a base 200 on a stable horizontal plane and fixing, enabling a guide rod 330 to pass through the primary hole processed on the workpiece 100, simultaneously inserting a limit fulcrum 210 on the base 200 into the primary hole and abutting against the hole wall of the primary hole, positioning the guide rod 330 to ensure that the outer peripheral surface of the guide rod 330 is in non-contact with the hole wall of the primary hole, enabling the guide rod 330 and the primary hole of the workpiece 100 to be on the same central axis, and fixing the base 200 and the workpiece 100 by using auxiliary materials such as viscose;
s2, as shown in FIG. 5, placing the jig 400 assembled with the outer support 300 on an outer curved surface of the workpiece 100, enabling the guide rod 330 to pass through a guide channel of the jig 400, ensuring that the guide rod 330 and the guide channel are positioned on the same central axis, sleeving a guide rod nut 340 on the guide rod 330, and screwing the guide rod nut 340 to lock the guide rod 330;
s3, as shown in FIG. 5, the outer support 300 is rotated, so that the supporting feet 320 at the bottom of the outer support 300 are all supported on the curved surface of the workpiece 100 and keep stable contact, and then the outer support 300 and the drill jig 400 are locked and fixed by the locking piece 310;
s4, as shown in FIG. 6, the guide rod nut 340 is removed to separate the guide rod 330 from the drill jig 400 and the workpiece 100, the base 200 is removed, and then the hole making work can be completed by matching with the drill jig 400 for hole expansion.
Claims (7)
1. Hole making auxiliary device of aircraft curved surface lamination structure, its characterized in that: comprises a base (200), an outer support (300) and a drill jig (400); the drilling jig (400) is arranged in the outer support (300) and is in movable fit with the outer support (300), a locking piece (310) for relatively fixing the outer support (300) and the drilling jig (400) is arranged on the outer support (300), and a plurality of supporting feet (320) are fixed at the bottom of the outer support (300); the drill jig (400) is provided with a guide channel in a penetrating manner, and a guide rod (330) in clearance fit with the guide channel is fixed on the base (200).
2. The hole making auxiliary device of the aircraft curved surface laminated structure according to claim 1, wherein: the drill jig (400) is a spherical drill jig, and the outer surface of the drill jig (400) is a spherical surface; the outside support (300) is internally provided with a spherical through hole matched with the drill jig (400), and the outside support (300) is sleeved on the periphery of the drill jig (400) to form rotary fit.
3. The hole making auxiliary device of the aircraft curved surface laminated structure according to claim 2, wherein: one end of the guide rod (330) which is not connected with the base (200) is provided with a thread section, the thread section is connected with a guide rod nut (340) in a threaded manner, and the outer diameter of the guide rod nut (340) is larger than the aperture of the guide channel.
4. A hole making auxiliary device for an aircraft curved surface laminated structure according to claim 3, wherein: the drilling jig further comprises a drilling guide sleeve (410) fixed on the drilling jig (400), the drilling guide sleeve (410) is coaxially arranged and communicated with a guide channel in the drilling jig (400), a guide rod (330) sequentially penetrates through the guide channel and the drilling guide sleeve (410) and then is in threaded connection with a guide rod nut (340), and the outer diameter of the guide rod nut (340) is larger than the aperture of the drilling guide sleeve (410).
5. The hole making auxiliary device of the aircraft curved surface laminated structure according to claim 2, wherein: the locking piece (310) is a locking screw, a threaded through hole matched with the thread of the locking screw is formed in the outer support (300), and one end of the locking screw can pass through the threaded through hole and then is abutted against the outer surface of the drilling jig (400).
6. The hole making auxiliary device of the aircraft curved surface laminated structure according to claim 1, wherein: and at least two limiting fulcra (210) fixed on the top surface of the base (200).
7. The hole making method of the aircraft curved surface laminated structure is characterized by comprising the following steps of: an auxiliary hole making device adopting the aircraft curved surface laminated structure according to any one of claims 3 to 6, which comprises the following steps:
s1, drilling a primary hole on a workpiece (100) with a curved surface laminated structure, placing a base (200) on a stable horizontal plane and fixing, enabling a guide rod (330) to penetrate through the primary hole machined on the workpiece (100), and enabling the outer peripheral surface of the guide rod (330) to be in non-contact with the wall of the primary hole;
s2, placing a drill jig (400) assembled with the outer support (300) on a curved surface of a workpiece (100), enabling a guide rod (330) to penetrate through a guide channel of the drill jig (400), ensuring that the guide rod (330) and the guide channel are positioned on the same axis, and installing a guide rod nut (340) to lock the guide rod (330);
s3, rotating the outer support (300) to enable the supporting feet (320) at the bottom of the outer support (300) to be in stable contact with the curved surface of the workpiece (100), and locking and fixing the outer support (300) and the drill jig (400) through the locking piece (310);
s4, after the guide rod nut (340) is unscrewed and the guide rod (330) and the base (200) are disassembled, the drilling operation is carried out by matching with the drilling jig (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311004755.4A CN116967503A (en) | 2023-08-10 | 2023-08-10 | Hole making auxiliary device and hole making method for aircraft curved surface laminated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311004755.4A CN116967503A (en) | 2023-08-10 | 2023-08-10 | Hole making auxiliary device and hole making method for aircraft curved surface laminated structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116967503A true CN116967503A (en) | 2023-10-31 |
Family
ID=88477993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311004755.4A Pending CN116967503A (en) | 2023-08-10 | 2023-08-10 | Hole making auxiliary device and hole making method for aircraft curved surface laminated structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116967503A (en) |
-
2023
- 2023-08-10 CN CN202311004755.4A patent/CN116967503A/en active Pending
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