CN203565937U - Single-blade forming drill - Google Patents
Single-blade forming drill Download PDFInfo
- Publication number
- CN203565937U CN203565937U CN201320709349.3U CN201320709349U CN203565937U CN 203565937 U CN203565937 U CN 203565937U CN 201320709349 U CN201320709349 U CN 201320709349U CN 203565937 U CN203565937 U CN 203565937U
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- Prior art keywords
- tangent plane
- cone section
- bored
- forms
- blade moulding
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- Expired - Fee Related
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- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims description 33
- 230000007704 transition Effects 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 9
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model provides a single-blade forming drill which comprises a tool handle (10) and a tool bit (20). The tool bit (20) comprises a cone section (21), the cone section (21) extends outwards in a gradually shrinking mode, the cone angle of the cone section (21) is identical with the cone angle of an inner cone surface to be machined, a first cutting surface (211) is formed on the cone section (21), a first chip discharge part is formed on the first cutting surface (211), and one of the two edges of the first cutting surface (211) forms a cutting blade. According to the technical scheme, the problem that the inner cone surface of a nozzle is difficult to machine in the prior art is solved.
Description
Technical field
The utility model relates to machine tools technical field, in particular to a kind of single-blade moulding, bores.
Background technology
At present, in aero-engine fuel nozzle, spout structure is basic identical, and the processing of nozzle opening and the coupled both sides conical surface is even more important.For the processing method of the above-mentioned conical surface, normally first use common drill bit to remove surplus, then carry out processing and forming with conical surface reamer, finally utilize conical surface grinding rod to carry out grinding and polishing and removal aperture and conical surface switching place burr.
Utilize conical surface reamer to process the inner conical surface of above-mentioned spout, mainly deposit problem in the following areas:
The first, because the conical surface reamer conical surface is little, corresponding chip area space is little, chip removal weak effect in reality processing, easily produces to squeeze and cuts, thereby cause surface quality of workpieces poor, the surface roughness requirement that does not reach cone in the jet face, the surface roughness of inner conical surface should be below Ra0.4.
The second, utilize conical surface reamer cannot process the connecting arc between two inner conical surfaces and nozzle opening, moreover nozzle opening formed by different tool sharpenings from the processing of inner conical surface, the axiality of nozzle opening and inner conical surface is difficult to guarantee.But the axiality of nozzle opening and conical surface quality directly affects the quality of the index (fuel-oil atmozation cone angle) of outbalance in nozzle flow experimental performance.The defect that this comparatively gives prominence to for this cutter.
The 3rd, utilize conical surface reamer to process after the part conical surface, general employing conical surface grinding rod (steel) carries out by hand polishing and removes nozzle opening and conical surface switching place burr after dipping in abrasive pastes, effect varies with each individual, conical surface size and angle uniformity are poor, also easily in aperture, produce and collapse scarce phenomenon, affect constant product quality.
The 4th, conical surface reamer is generally four sword structures, and it manufactures with reconditioning difficulty large, is mainly the uniformity that is difficult to ensure the each cutting edge size of card.
Utility model content
The utility model aims to provide a kind of single-blade moulding and bores, to solve the problem of the inner conical surface difficulty of processing spout in prior art.
To achieve these goals, the utility model provides a kind of single-blade moulding brill to comprise handle of a knife and cutter head, cutter head comprises cone section, cone section is shunk gradually ground and is stretched out, the cone angle of cone section is identical with the cone angle of inner conical surface to be processed, upper first tangent plane that forms of cone section, the first tangent plane forms the first chip removal portion, and an edge in two edges of the first tangent plane forms cutting edge.
Further, cutter head also comprises the changeover portion being connected between cone section and handle of a knife, forms the second tangent plane on changeover portion, and the second tangent plane forms the second chip removal portion.
Further, also form the 3rd tangent plane on changeover portion, the 3rd tangent plane is between the first tangent plane and the second tangent plane, and the 3rd tangent plane forms the 3rd chip removal portion of the first chip removal portion of connection and the second chip removal portion.
Further, the 3rd tangent plane and the first tangent plane, in same plane, and form obtuse angle angle with the second tangent plane.
Further, the level and smooth cambered surface of the common formation of the first tangent plane, the 3rd tangent plane and the second tangent plane.
Further, changeover portion is shell of column, and the diameter of changeover portion equates with the maximum gauge of cone section.
Further, cutter head also comprises guide section, is arranged on one end away from handle of a knife of cone section.
Further, the junction between guide section and cone section has transition arc.
Further, handle of a knife and cutter head are structure as a whole.
Application the technical solution of the utility model, the cone angle of cone section is identical with the cone angle of the inner conical surface of part to be processed, can be by the moulding of inner conical surface time processing, processing inner conical surface is easy, saves process time.Simultaneously, upper first tangent plane that forms of cone section, the first tangent plane forms the first chip removal portion, it is single-blade structure that an edge in two edges of the first tangent plane forms cutting edge, single-blade structure makes the chip removal space of the first chip removal portion larger, can facilitate the discharge of smear metal, and chip removal is effective, can also reduce tool wear, improve the surface quality of part.Larger chip removal space has also greatly reduced the generation of Integrated Chip, facilitates the cooling single-blade moulding of cooling fluid to bore simultaneously, can improve the cutting ability of single-blade moulding brill and the surface quality of part.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the structural representation of the embodiment mono-boring according to single-blade moulding of the present utility model;
Fig. 2 shows the cutter head structure schematic diagram of the single-blade moulding brill of Fig. 1;
Fig. 3 shows the structural representation of the embodiment bis-boring according to single-blade moulding of the present utility model; And
Fig. 4 shows the tool bit part structural representation of the single-blade moulding brill of Fig. 3.
Above-mentioned accompanying drawing comprises the following drawings mark:
10, handle of a knife; 20, cutter head; 21, cone section; 211, the first tangent plane; 22, changeover portion; 221, the second tangent plane; 222, the 3rd tangent plane; 23, guide section.
The specific embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As depicted in figs. 1 and 2, the single-blade moulding of embodiment mono-is bored and is comprised handle of a knife 10 and cutter head 20, cutter head 20 comprises cone section 21, cone section 21 is shunk gradually ground and is stretched out, the cone angle of cone section 21 is identical with the cone angle of inner conical surface to be processed, in cone section 21, form the first tangent plane 211, the first tangent planes 211 and form the first chip removal portion, an edge in two edges of the first tangent plane 211 forms cutting edge.
The single-blade moulding of Application Example one is bored, and the cone angle of cone section 21 is identical with the cone angle of the inner conical surface of part to be processed, can be by the moulding of inner conical surface time processing, and processing inner conical surface is easy, saves process time.Simultaneously, in cone section 21, form the first tangent plane 211, the first tangent plane 211 forms the first chip removal portion, it is single-blade structure that an edge in two edges of the first tangent plane 211 forms cutting edge, single-blade structure makes the chip removal space of the first chip removal portion larger, can facilitate the discharge of smear metal, and chip removal is effective, can also reduce tool wear, improve the surface quality of part.Larger chip removal space has also greatly reduced the generation of Integrated Chip, facilitates the cooling single-blade moulding of cooling fluid to bore simultaneously, can improve the cutting ability of cutter and the surface quality of part.
In embodiment mono-, cutter head 20 also comprises the changeover portion 22 being connected between cone section 21 and handle of a knife 10, forms the second tangent plane 221, the second tangent planes 221 and form the second chip removal portion on changeover portion 22.The second chip removal portion can, more easily by chip discharge, avoid producing Integrated Chip, can better guarantee crudy.
In embodiment mono-, on changeover portion 22, also form the 3rd tangent plane 222, the three tangent planes 222 between the first tangent plane 211 and the second tangent plane 221, the 3rd tangent plane 222 forms the 3rd chip removal portion of the first chip removal portion of connection and the second chip removal portion.In embodiment mono-, as shown in Figure 1, the 3rd tangent plane 222 and the first tangent plane 211, in same plane, and form obtuse angle angle with the second tangent plane 221.Smear metal can be passed through the first chip removal portion, the second chip removal portion and the 3rd chip removal portion successively, and chip removal space is larger, and more convenient discharge smear metal has avoided smear metal to scratch the surface having processed better, has improved widely surface quality.
In embodiment mono-, changeover portion 22 is shell of column, and the diameter of changeover portion 22 equates with the maximum gauge of cone section 21.Can avoid like this cone section 21 to form and interfere with the surface processing.
In embodiment mono-, cutter head 20 also comprises guide section 23, is arranged on one end away from handle of a knife 10 of cone section 21.Guide section 23 had been both leader, was also processing part, can guarantee better crudy.
In embodiment mono-, the junction between guide section 23 and cone section 21 has transition arc.The single-blade connection circular arc boring that is shaped is identical with the circular shape of the junction of nozzle opening and inner conical surface, can time processing moulding, and machining accuracy is higher, has well guaranteed the axiality of nozzle opening and inner conical surface, and has greatly reduced the burr of junction.So also avoid polishing by hand to bring the hidden danger of quality of product, put forward high-quality stability.
In embodiment mono-, for faster in manufacture and context of detection, handle of a knife 10 is structure as a whole with cutter head 20.
In embodiment mono-, the anterior angle of the cutting edge that single-blade moulding is bored and relief angle are all within 14 °～16 ° scopes, and cutting edge is sharper like this, and the surface quality after processing is also higher.
Fig. 3 and Fig. 4 show the structure of the embodiment bis-of the application's single-blade moulding brill, and single-blade moulding brill and the difference of embodiment mono-of embodiment bis-is that the angle between cutting edge and the axial direction center line of single-blade moulding brill is different.Angle between the axial direction center line that cutting edge in embodiment mono-and single-blade moulding are bored is 18 ° ± 5 ', and angle between the axial direction center line of cutting edge in embodiment bis-and single-blade moulding brill is 45 ° ± 5 '.Certainly, the angle between the axial direction center line that cutting edge and single-blade moulding are bored can be also 15 ° ± 5 '.In addition, can determine the angle between cutting edge and the axial direction center line of single-blade moulding brill according to the angle of inner conical surface to be processed.
In unshowned in the drawings embodiment, the cambered surface that the first tangent plane 211, the 3rd tangent plane 222 and the common formation of the second tangent plane 221 are level and smooth.Round and smooth cambered surface can more convenient smear metal discharge, chip removal better effects if.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a single-blade moulding is bored, it is characterized in that, comprise: handle of a knife (10) and cutter head (20), described cutter head (20) comprises cone section (21), described cone section (21) is shunk gradually and is stretched out, and the cone angle of described cone section (21) is identical with the cone angle of inner conical surface to be processed, upper the first tangent plane (211) that forms of described cone section (21), described the first tangent plane (211) forms the first chip removal portion, and an edge in two edges of described the first tangent plane (211) forms cutting edge.
2. single-blade moulding according to claim 1 is bored, it is characterized in that, described cutter head (20) also comprises the changeover portion (22) being connected between described cone section (21) and described handle of a knife (10), upper the second tangent plane (221) that forms of described changeover portion (22), described the second tangent plane (221) forms the second chip removal portion.
3. single-blade moulding according to claim 2 is bored, it is characterized in that, on described changeover portion (22), also form the 3rd tangent plane (222), described the 3rd tangent plane (222) is positioned between described the first tangent plane (211) and described the second tangent plane (221), and described the 3rd tangent plane (222) forms the 3rd chip removal portion that connects described the first chip removal portion and described the second chip removal portion.
4. single-blade moulding according to claim 3 is bored, and it is characterized in that, described the 3rd tangent plane (222) in same plane, and forms obtuse angle angle with described the second tangent plane (221) with described the first tangent plane (211).
5. single-blade moulding according to claim 3 is bored, and it is characterized in that, described the first tangent plane (211), the 3rd tangent plane (222) form level and smooth cambered surface jointly with described the second tangent plane (221).
6. single-blade moulding according to claim 2 is bored, and it is characterized in that, described changeover portion (22) is shell of column, and the diameter of described changeover portion (22) equates with the maximum gauge of described cone section (21).
7. single-blade moulding according to claim 1 is bored, and it is characterized in that, described cutter head (20) also comprises guide section (23), is arranged on one end away from described handle of a knife (10) of described cone section (21).
8. single-blade moulding according to claim 7 is bored, and it is characterized in that, the junction between described guide section (23) and described cone section (21) has transition arc.
9. single-blade moulding according to claim 1 is bored, and it is characterized in that, described handle of a knife (10) is structure as a whole with described cutter head (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709349.3U CN203565937U (en) | 2013-11-11 | 2013-11-11 | Single-blade forming drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320709349.3U CN203565937U (en) | 2013-11-11 | 2013-11-11 | Single-blade forming drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203565937U true CN203565937U (en) | 2014-04-30 |
Family
ID=50533696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320709349.3U Expired - Fee Related CN203565937U (en) | 2013-11-11 | 2013-11-11 | Single-blade forming drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203565937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394484A (en) * | 2019-08-13 | 2019-11-01 | 厦门厦芝科技工具有限公司 | A kind of three apex angular bit heads |
-
2013
- 2013-11-11 CN CN201320709349.3U patent/CN203565937U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110394484A (en) * | 2019-08-13 | 2019-11-01 | 厦门厦芝科技工具有限公司 | A kind of three apex angular bit heads |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20201111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |