CN203565940U - Trepanning drill for machining honeycomb interlayer composite materials - Google Patents
Trepanning drill for machining honeycomb interlayer composite materials Download PDFInfo
- Publication number
- CN203565940U CN203565940U CN201320688530.0U CN201320688530U CN203565940U CN 203565940 U CN203565940 U CN 203565940U CN 201320688530 U CN201320688530 U CN 201320688530U CN 203565940 U CN203565940 U CN 203565940U
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bushing
- cutting edge
- stem
- bushing
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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.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 21
- 239000011229 interlayer Substances 0.000 title abstract description 8
- 238000003754 machining Methods 0.000 title abstract 2
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 230000013011 mating Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Landscapes
- Drilling Tools (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model discloses a trepanning drill for machining honeycomb interlayer composite materials. The trepanning drill comprises a drill bushing (1) and a drill stem (2), and is characterized in that the drill bushing (1) is tubular, a cutting edge is arranged at one end of the drill bushing (1), inner threads are arranged at the other end of the drill bushing (1), the drill stem (2) is a step stem, an initial hole guide stem (21) is arranged at the front end of the drill rod (2), outer threads (23) in threaded connection with the inner threads of the drill bushing (1) are manufactured on the initial hole guide stem (21), and a drillstock (22) matched with a pneumatic drill clamping part is arranged at the rear end of the drill stem (2). When a large-diameter hole is drilled, firstly, the initial hole guide stem is inserted into an initial hole formed in the honeycomb interlayer composite materials to have the guide effect, due to the fact that the drill bushing (1) is tubular, the cutting force of the cutting edge is small, drilling defects such as interlayer layering and fiber separation at the outlet-inlet ends can be overcome, and the large-diameter hole drilling quality is improved.
Description
Technical field
The utility model relates to a kind of cylindrical drill, relates in particular to a kind of cylindrical drill of processing honeycomb sandwich composite.
Background technology
The composite of honeycomb sandwich construction, owing to having higher specific strength and the advantage such as heat insulation, shock-resistant is extremely wide in many fields application such as Aeronautics and Astronautics, civil engineering preferably, is mainly as the structural material that replaces steel.Honeycomb sandwich composite is consisted of the thicker honeycomb core of upper and lower panel therebetween one, the grid configuration of honeycomb core has regular hexagon, square, rhombus etc., material can be paper, glass cloth, aluminium alloy, aramid paper etc., panel can adopt glued board, fiberboard, aluminium alloy plate, glass epoxy etc., when holing on honeycomb sandwich composite, due to honeycomb sandwich composite, to have interlaminar strength low, anisotropy, hardness is high, the features such as fragility is large, easily produce interlayer layering, the boring defects such as discrepancy end fiber splitting, while especially processing the larger hole of diameter (hole that is greater than 8 millimeters as diameter), because drilling axial force can sharply increase along with the increasing of bit diameter, thereby more easily produce interlayer lamination defect.
Summary of the invention
For solving the pore volume that diameter is larger that drills of prior art, easily produce interlayer lamination defect, the utility model provides a kind of cylindrical drill of processing honeycomb sandwich composite, a kind of cylindrical drill of processing honeycomb sandwich composite of the present utility model comprises drill bushing and drilling rod, it is characterized in that, described drill bushing is tubulose, drill bushing one end is provided with cutting edge, the drill bushing other end is provided with internal thread, described drilling rod is stepped stem, front end is first hole guide rod, on described first hole guide rod, be shaped with the external screw thread that the internal thread with drill bushing is spirally connected, the rear end of described drilling rod is the drillstock mating with pneumatic drill clamping part.
Described cutting edge is along drill bushing circumference equal dividing layout, and the tube wall between cutting edge has chip pocket, and the inner and outer wall of tube wall is all made back taper.
Described back taper is got 0.5 °.
The anterior angle of the cutting edge of described drill bushing is 6 °, and relief angle is 15 °～18 °, and centripetal drift angle is got 3 °, and end gap angle is got 6 °～8 °.
It is Polycrystalline diamond that the cutting edge of described drill bushing scribbles diamond PCD(, polycrystalline diamond) material coating.
The utility model has following good effect than prior art, a kind of cylindrical drill of processing honeycomb sandwich composite of the present utility model, drill bushing is sleeved on drilling rod, when the larger hole of drill diameter, first just hole guide rod is inserted in the first Kong Zhongqi guiding function that honeycomb sandwich composite is made, because drill bushing is tubulose, therefore the cutting force of cutting edge is less, can not produce interlayer layering, the boring defects such as end fiber splitting of coming in and going out, improved the quality in the hole that drill diameter is larger.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is a kind of schematic diagram of processing the cylindrical drill of honeycomb sandwich composite of the present utility model.
Fig. 2 is the schematic diagram of the drill bushing of a kind of cylindrical drill of processing honeycomb sandwich composite of the present utility model.
Fig. 3 is the schematic diagram of the drilling rod of a kind of cylindrical drill of processing honeycomb sandwich composite of the present utility model.
In figure: 1. drill bushing, 2. drilling rod, 21. first hole guide rods, 22. drillstocks, 23. external screw threads.
The specific embodiment
Fig. 1, Fig. 2 and Fig. 3 show a kind of cylindrical drill of processing honeycomb sandwich composite of the present utility model, comprise drill bushing 1 and drilling rod 2, it is characterized in that, described drill bushing 1 is tubulose, and drill bushing 1 one end is provided with cutting edge, and drill bushing 1 other end is provided with internal thread, described drilling rod 2 is stepped stem, front end is first hole guide rod 21, is shaped with the external screw thread 23 that the internal thread with drill bushing 1 is spirally connected on described first hole guide rod 21, and the rear end of described drilling rod 2 is the drillstocks 22 that mate with pneumatic drill clamping part.
Described cutting edge is along drill bushing 1 circumference equal dividing layout, and the tube wall between cutting edge has chip pocket, and the inner and outer wall of tube wall is all made back taper.
Described back taper is got 0.5 °, has formed the side clearance of cutting edge.
In Fig. 2, a is the anterior angle of cutting edge, and b is the relief angle of cutting edge, and the anterior angle of the cutting edge of described drill bushing 1 is 6 °, and relief angle is 15 °～18 °, and centripetal drift angle is got 3 °, and end gap angle is got 6 °～8 °.
It is Polycrystalline diamond that the cutting edge of described drill bushing 1 scribbles diamond PCD(, polycrystalline diamond) material coating.
Claims (4)
1. a cylindrical drill of processing honeycomb sandwich composite, comprise drill bushing (1) and drilling rod (2), it is characterized in that, described drill bushing (1) is tubulose, drill bushing (1) one end is provided with cutting edge, drill bushing (1) other end is provided with internal thread, described drilling rod (2) is stepped stem, front end is first hole guide rod (21), on described first hole guide rod (21), be shaped with the external screw thread (23) that the internal thread with drill bushing (1) is spirally connected, the rear end of described drilling rod (2) is the drillstock (22) mating with pneumatic drill clamping part.
2. a kind of cylindrical drill of processing honeycomb sandwich composite according to claim 1, is characterized in that, described cutting edge is along drill bushing (1) circumference equal dividing layout, and the tube wall between cutting edge has chip pocket, and the inner and outer wall of tube wall is all made back taper.
3. a kind of cylindrical drill of processing honeycomb sandwich composite according to claim 2, is characterized in that, described back taper is got 0.5 °.
4. according to the cylindrical drill of any processing honeycomb sandwich composite described in claim 1,2 or 3, it is characterized in that, the anterior angle of the cutting edge of described drill bushing (1) is 6 °, and relief angle is 15 °～18 °, centripetal drift angle is got 3 °, and end gap angle is got 6 °～8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688530.0U CN203565940U (en) | 2013-11-04 | 2013-11-04 | Trepanning drill for machining honeycomb interlayer composite materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320688530.0U CN203565940U (en) | 2013-11-04 | 2013-11-04 | Trepanning drill for machining honeycomb interlayer composite materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203565940U true CN203565940U (en) | 2014-04-30 |
Family
ID=50533699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320688530.0U Expired - Lifetime CN203565940U (en) | 2013-11-04 | 2013-11-04 | Trepanning drill for machining honeycomb interlayer composite materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203565940U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014474A (en) * | 2019-04-03 | 2019-07-16 | 西安飞机工业（集团）有限责任公司 | A kind of cutter device and cutting method of honeycomb core equidimension opening |
| CN114653995A (en) * | 2022-02-17 | 2022-06-24 | 成都飞机工业（集团）有限责任公司 | Tool for removing local honeycomb core in inner cavity of honeycomb sandwich structure and using method thereof |
-
2013
- 2013-11-04 CN CN201320688530.0U patent/CN203565940U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014474A (en) * | 2019-04-03 | 2019-07-16 | 西安飞机工业（集团）有限责任公司 | A kind of cutter device and cutting method of honeycomb core equidimension opening |
| CN114653995A (en) * | 2022-02-17 | 2022-06-24 | 成都飞机工业（集团）有限责任公司 | Tool for removing local honeycomb core in inner cavity of honeycomb sandwich structure and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |
|
| CX01 | Expiry of patent term |