CN216178439U - Positioning auxiliary tool for center hole of fastener - Google Patents
Positioning auxiliary tool for center hole of fastener Download PDFInfo
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- CN216178439U CN216178439U CN202122546824.7U CN202122546824U CN216178439U CN 216178439 U CN216178439 U CN 216178439U CN 202122546824 U CN202122546824 U CN 202122546824U CN 216178439 U CN216178439 U CN 216178439U
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- fastener
- positioning support
- drill bushing
- support
- hole
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Abstract
The utility model provides a positioning auxiliary tool for a center hole of a fastener, which comprises a positioning support, wherein the bottom of the positioning support is provided with a plurality of fixing parts, the positioning support is tightly attached to the fastener through the plurality of fixing parts, a guide drill bushing for guiding a drill bit device and keeping the drill bit device vertical is detachably arranged on the upper end surface of the positioning support, the guide drill bushing comprises a horizontal part and a vertical part which are integrated, a center hole penetrating through the horizontal part and the vertical part is arranged in the guide drill bushing, the horizontal part of the guide drill bushing is positioned on the upper end surface of the positioning support, so that the center hole is used for guiding the drill bit device, and the vertical part of the guide drill bushing is positioned in the positioning support and matched with an inner hole of the positioning support, so that the center hole of the vertical part is aligned with the center position of the head of the fastener. When the utility model is applied to the disassembly of the fastening piece on the airplane structure, the drill bit can be ensured to be aligned to the central hole position of the head of the fastening piece, the disassembly of the fastening piece is facilitated, and the drilling quality is ensured.
Description
Technical Field
The utility model relates to the technical field of aircraft structure assembly, in particular to a positioning auxiliary tool for disassembling a fastener and aligning a center hole in the process of aircraft assembly and repair.
Background
At present, the repair and decomposition of the fastener can be carried out in the process of producing and manufacturing airplanes at home and abroad. Disassembly and reinstallation of installed fasteners are required for design changes, troubleshooting, quality rework, and the like. When the installed fastener is disassembled, the riveted structure influences the disassembling operation, and the head of part of the fastener is a semicircular head.
When the drill bit is directly used for disassembling in the traditional manual mode, the drill bit is difficult to align the center, and the hole diameter can cause elliptical holes or 8-shaped holes due to eccentricity after disassembly, so that the quality problem of out-of-tolerance is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a positioning auxiliary tool for a central hole of a fastener, which can ensure that a drill bit is aligned with the central hole of the head of the fastener when the fastener on an airplane structure is disassembled, is favorable for disassembling the fastener and ensures the drilling quality.
In order to solve the problems, the technical scheme adopted by the utility model is as follows:
the utility model provides a location auxiliary fixtures of fastener centre bore, includes: the positioning support, the positioning support bottom has a plurality of fixed parts, the positioning support closely laminates with the fastener through a plurality of fixed parts, positioning support up end demountable installation has and is used for leading to the drill bit device and make it keep vertical direction drill bushing, the direction drill bushing is including the horizontal part and the vertical portion of integration, be equipped with one in the direction drill bushing link up in the centre bore of horizontal part and vertical portion, the horizontal part of direction drill bushing is located positioning support up end makes the centre bore is used for leading to the drill bit device, the vertical portion of direction drill bushing be located in the positioning support and with the hole cooperation setting of positioning support makes the central point of fastener head is aimed at to the centre bore of vertical portion puts.
Further, the positioning support bottom comprises an integrated support main body and a support bottom.
In a further scheme, the bore diameter of the inner bore of the support main body is matched with the outer diameter of the vertical part of the guide drill bushing.
The bottom of the support comprises four fixing parts at opposite angles, and the bottom ends of the four fixing parts extend outwards to form a gap area.
The bottom end of the fixing part and the bottom end of the vertical part are not on the same horizontal plane, and the horizontal plane where the bottom end of the vertical part is located is higher than the horizontal plane where the bottom end of the fixing part is located.
In a further aspect, the central hole has a first opening at an upper surface of the horizontal portion and a second opening at a bottom end of the vertical portion, and the second opening of the central hole is aligned with a center of the fastener.
In a further aspect, the aperture at the first opening of the central aperture is smaller than the aperture at the second opening of the central aperture.
In a further aspect, the second opening of the central bore is a recess having an inner profile that cooperates with an outer profile of the head of the fastener to accommodate fasteners of different diameters.
Therefore, the support and the guide drill bushing are ingeniously designed, and the drill bushing is drilled, so that the drill bit can be kept vertical, the drill bit is not easy to run, the precision of parts can be guaranteed, the production efficiency can be improved, the fastener to be disassembled is stably and reliably clamped, the working efficiency is higher, the precision of the disassembled fastener is high, and the hole quality is high.
The guide drill bushing is a replaceable drill bushing, can be used for clamping workpieces with different diameters and sizes, is wide in application range, accurate in positioning center, and simple, convenient and quick to operate due to the fact that a center hole drilled by the drill bushing in a guide mode is not inclined.
Therefore, the utility model can solve the problem of hole deviation caused by the eccentricity of the decomposed fastener, and the like, and the tool has the advantages of simple and ingenious structure, low manufacturing cost, high accuracy and efficiency, and easy popularization and application in various airplane manufacturers.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a positioning auxiliary tool for a central hole of a fastener according to the present invention.
FIG. 2 is a front view of an embodiment of the positioning aid for a central hole of a fastener according to the utility model.
FIG. 3 is a top view of an embodiment of the positioning aid for a central hole of a fastener according to the present invention.
FIG. 4 is a schematic structural diagram of a positioning support in an embodiment of an auxiliary tool for positioning a central hole of a fastener according to the present invention.
FIG. 5 is a front view of a positioning support in an embodiment of the auxiliary tool for positioning a central hole of a fastener according to the utility model.
FIG. 6 is a top view of a positioning support in an embodiment of a positioning aid for a central hole of a fastener of the present invention.
Fig. 7 is a sectional view taken at a point a in fig. 5.
FIG. 8 is a front view of a pilot bit bushing in an embodiment of a tool for assisting in locating a central hole in a fastener of the present invention.
Fig. 9 is a sectional view taken at point B in fig. 8.
FIG. 10 is a side view of a pilot bit bushing in an embodiment of a tool for assisting in locating a central bore in a fastener of the present invention.
FIG. 11 is a top view of a pilot bit bushing in an embodiment of a tool for assisting in locating a central bore in a fastener of the present invention.
The reference numbers illustrate: 10-guide drill bushing, 20-positioning support, 11-horizontal part, 12-vertical part, 13-center hole, 21-support main body, 22-fixing part, 131-first opening, 132-second opening and 211-inner hole
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.
Referring to fig. 1 to 11, an auxiliary positioning tool for a central hole of a fastener includes: the drill bit device guiding device comprises a positioning support 20, wherein a plurality of fixing parts 22 are arranged at the bottom of the positioning support 20, the positioning support 20 is tightly attached to a fastener through the plurality of fixing parts 22, a guiding drill bushing 10 used for guiding a drill bit device and keeping the drill bit device vertical is detachably mounted on the upper end face of the positioning support 20, the guiding drill bushing 10 comprises a horizontal part 11 and a vertical part 12 which are integrated, a central hole 13 penetrating through the horizontal part 11 and the vertical part 12 is formed in the guiding drill bushing 10, the horizontal part 11 of the guiding drill bushing 10 is located on the upper end face of the positioning support 20, so that the central hole 13 is used for guiding the drill bit device, the vertical part 12 of the guiding drill bushing 10 is located in the positioning support 20 and is matched with an inner hole 211 of the positioning support 20, and the central hole 13 of the vertical part 12 is aligned with the center position of the head of the fastener.
As shown in fig. 4 to 7, the bottom of the positioning holder 20 includes an integrated holder main body 21 and a holder bottom.
Wherein the bore diameter of the inner bore 211 of the holder body 21 matches the outer diameter of the vertical part 12 of the guide drill bushing 10.
The bottom of the support comprises four fixing parts 22 at opposite angles, and the bottom ends of the four fixing parts 22 extend outwards to form a gap area. It can be seen that the stability of the drill bit can be ensured by using four-point support at the bottom of the support, and the influence caused by the stringer and the angle or the special-shaped surface in the airplane structure can be avoided by opening the bottom of the support.
The bottom end of the fixing portion 22 is not located on the same horizontal plane as the bottom end of the vertical portion 12, and the horizontal plane of the bottom end of the vertical portion 12 is higher than the horizontal plane of the bottom end of the fixing portion 22.
As shown in fig. 8 to 11, the central hole 13 has a first opening 131 formed at an upper surface of the horizontal portion 11 and a second opening 132 formed at a bottom end of the vertical portion 12, and the second opening 132 of the central hole 13 is aligned with a center position of the fastening member.
Wherein, the aperture of the first opening 131 of the central hole 13 is smaller than the aperture of the second opening 132 of the central hole 13.
The second opening 132 of the central hole 13 is a recess, and the inner contour of the recess is matched with the outer contour of the head of the fastener to adapt to fasteners with different diameters. It can be seen that the bottom of the pilot drill bushing 10 is formed as a recess conforming to the profile of the head of the fastener, and the diameter of the recess is sized according to the specifications of different standard parts, so that the central position of the fastener can be ensured to be aligned. The guide drill bushing 10 is replaceable, so that replaceable drill bushings of different specifications can be manufactured according to different fastener profiles.
The embodiment uses drill bushing bases with different specifications to be matched with the head of the fastener so as to fix the center, and the drill bushing base and the drill bit are matched to be detachable and replaceable. Thus, the center can be ensured, and the drill bushing can be replaced after being worn. In addition, the bottom of the support is provided with the notch, so that the support is suitable for most aircraft structure disassembly fasteners.
In practical application, the positioning support 20 is fixed above a fastener to be disassembled, the guide drill bushing 10 with a proper specification is selected to be screwed into the positioning support 20 to prop against the head of the fastener, and then, a drill bit is selected for disassembling. Therefore, the tool can be suitable for aligning and decomposing fasteners with different specifications, ensures the quality of holes, has strong universality, simple and ingenious structure and low manufacturing cost, and is easy to popularize, popularize and apply in various aircraft manufacturers.
Therefore, the support and the guide drill bushing 10 are ingeniously designed, and the drill bushing is drilled, so that the drill bit can be kept vertical, the drill bit is not easy to run, the precision of parts can be guaranteed, the production efficiency can be improved, the fastener to be disassembled is stably and reliably clamped, the working efficiency is higher, the precision of the disassembled fastener is high, and the hole quality is high.
The guide drill bushing 10 is a replaceable drill bushing, can be used for clamping workpieces with different diameters and sizes, and is wide in application range, accurate in positioning center, simple and fast to operate due to the fact that a center hole drilled by the drill bushing in a guide mode is not inclined.
Therefore, the utility model can solve the problem of hole deviation caused by the eccentricity of the decomposed fastener, and the like, and the tool has the advantages of simple and ingenious structure, low manufacturing cost, high accuracy and efficiency, and easy popularization and application in various airplane manufacturers.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. The utility model provides a location auxiliary fixtures of fastener centre bore which characterized in that includes:
the positioning support, the positioning support bottom has a plurality of fixed parts, the positioning support closely laminates with the fastener through a plurality of fixed parts, positioning support up end demountable installation has and is used for leading to the drill bit device and make it keep vertical direction drill bushing, the direction drill bushing is including the horizontal part and the vertical portion of integration, be equipped with one in the direction drill bushing link up in the centre bore of horizontal part and vertical portion, the horizontal part of direction drill bushing is located positioning support up end makes the centre bore is used for leading to the drill bit device, the vertical portion of direction drill bushing be located in the positioning support and with the hole cooperation setting of positioning support makes the central point of fastener head is aimed at to the centre bore of vertical portion puts.
2. The auxiliary positioning tool according to claim 1, characterized in that:
the positioning support bottom comprises an integrated support main body and a support bottom.
3. The auxiliary positioning tool according to claim 2, characterized in that:
the hole diameter of the inner hole of the support main body is matched with the outer diameter of the vertical part of the guide drill bushing.
4. The auxiliary positioning tool according to claim 3, characterized in that:
the bottom of the support comprises four fixing parts at opposite angles, and the bottom ends of the four fixing parts extend outwards to form a gap area.
5. The auxiliary positioning tool according to claim 4, characterized in that:
the bottom end of the fixing portion and the bottom end of the vertical portion are not on the same horizontal plane, and the horizontal plane where the bottom end of the vertical portion is located is higher than the horizontal plane where the bottom end of the fixing portion is located.
6. The auxiliary positioning tool according to any one of claims 1 to 5, characterized in that:
the center hole is provided with a first opening arranged on the upper surface of the horizontal part and a second opening arranged at the bottom end of the vertical part, and the second opening of the center hole is aligned to the center of the fastener.
7. The auxiliary positioning tool according to claim 6, characterized in that:
the aperture of the first opening of the central hole is smaller than that of the second opening of the central hole.
8. The auxiliary positioning tool according to claim 6, characterized in that:
the second opening of the central hole is a recess, and the inner contour of the recess is matched with the outer contour of the head of the fastener so as to adapt to fasteners with different diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122546824.7U CN216178439U (en) | 2021-10-21 | 2021-10-21 | Positioning auxiliary tool for center hole of fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122546824.7U CN216178439U (en) | 2021-10-21 | 2021-10-21 | Positioning auxiliary tool for center hole of fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216178439U true CN216178439U (en) | 2022-04-05 |
Family
ID=80886933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122546824.7U Active CN216178439U (en) | 2021-10-21 | 2021-10-21 | Positioning auxiliary tool for center hole of fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216178439U (en) |
-
2021
- 2021-10-21 CN CN202122546824.7U patent/CN216178439U/en active Active
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