CN204108417U - Staged fluted drill - Google Patents
Staged fluted drill Download PDFInfo
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- CN204108417U CN204108417U CN201420559127.2U CN201420559127U CN204108417U CN 204108417 U CN204108417 U CN 204108417U CN 201420559127 U CN201420559127 U CN 201420559127U CN 204108417 U CN204108417 U CN 204108417U
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Abstract
The utility model provides a kind of staged fluted drill, belongs to process tool technical field.It solving existing fluted drill can not machined layer hole, and the problem of offset tool easily occurs during reaming.This staged fluted drill, comprise drillstock and drill bit, drill bit comprises apex point, stage casing drill body and back segment drill body, the diameter of stage casing drill body is less than the diameter of back segment drill body, back segment drill body is connected with stage casing drill body transition, its junction is formed with drill lip, and the both sides of apex point have spiral respectively and are located at chip area on stage casing drill body and back segment drill body, and the angle of apex point is equal with the angle of drill lip.The utility model energy machined layer hole, has the advantages such as working (machining) efficiency is high, machining accuracy is high, good cooling results.
Description
Technical field
The utility model belongs to process tool technical field, relates to a kind of fluted drill, particularly a kind of staged fluted drill.
Background technology
Fluted drill is with the instrument of drilling workpiece circular hole by the rotary cutting of its relative fixed axis.When at present Drilling operation being carried out to workpiece, because fluted drill bit diameter often runs into comparatively greatly the situation that drill bit advances difficulty, time serious, also can cause the damage of unrepairable to drill bit.In order to ensure that there is higher precision in the hole processed, need on workpiece to be processed subdrilling one aperture, and then carry out reaming.Present way is exactly first get out aperture by Small-diameter drill, and then change the drill bit reaming of large footpath, such operation bothers very much, and inefficiency; Easily there is offset tool in reaming after changing large footpath drill bit, causes reaming failure.
And existing fluted drill, the bit body of its boring is identical with the diameter of drill bit, the hole that this drill bit processes is with one heart with the hole of diameter, need processing with one heart and the shoulder hole of different-diameter time, need the bit bore first using minor diameter, bore the shoulder hole of minor diameter, because large diameter drill bit and head are with tapering, the ladder position of the shoulder hole expanded is also with tapering, sometimes also flatten the tapered portion of ladder with forsner bit, with this fluted drill converted products, there is following shortcoming: operation is more, inefficiency; Repeatedly process, concentricity is poor, and precision is low, can not meet the demand of high-precision product.
If during deep hole processing, cooling fluid cannot enter and cause cutting temperature high, and chip removal is smooth, and bit wear is fast, and life-span of cutter very limited, even if use the lubricant of oil-containing or smear certain layer effect at tool surface also not obvious.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind ofly to add good cooling results in man-hour, staged fluted drill that machining accuracy is high.
The purpose of this utility model realizes by following technical proposal:
This staged fluted drill, comprise drillstock and drill bit, it is characterized in that, described drill bit comprises apex point, stage casing drill body and back segment drill body, the diameter of described stage casing drill body is less than the diameter of back segment drill body, and described back segment drill body is connected with stage casing drill body transition, and its junction is formed with drill lip, the both sides of described apex point have spiral respectively and are located at chip area on stage casing drill body and back segment drill body, and the angle of described apex point is equal with the angle of drill lip.
In above-mentioned staged fluted drill, the angle of described apex point is 130 °-140 °.
In above-mentioned staged fluted drill, the angle of described apex point is 135 °.
In above-mentioned staged fluted drill, the surface of the described stage casing drill body part between two chip areas is provided with chip pocket, a side of described chip area is the parabola shaped face one inwardly concaved, described parabola shaped face one is provided with cutting edge with the junction of chip pocket, and the another side of described chip area is outwardly parabola shaped face two.
In above-mentioned staged fluted drill, described apex point has interior cold hole one.
In above-mentioned staged fluted drill, described drill lip has interior cold hole two.
Compared with prior art, this staged fluted drill has the following advantages:
Because stage casing drill body and rear end drill body are coaxially arranged, add and first use stage casing drill body machining small man-hour, then use the further reaming in type aperture of rear end drill body, machining accuracy is high, and working (machining) efficiency is high; Because stage casing drill body is different from the diameter of back segment drill body, can be used for the layer hole processing different-diameter, working (machining) efficiency is high; Apex point and drill lip arrange interior cold hole respectively, adds man-hour cooling fluid and arrive apex point and drill lip place in time, good cooling results, improve the machining accuracy of this fluted drill.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of preferred embodiment that the utility model provides.
In figure, 1, drillstock; 2, apex point; 3, stage casing drill body; 4, back segment drill body; 5, drill lip; 6, chip area; 61, parabola shaped face one; 62, parabola shaped face two; 7, chip pocket; 91, interior cold hole one; 92, interior cold hole two.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
This staged fluted drill, comprise drillstock 1 and drill bit, as shown in Figure 1, drill bit comprises apex point 2, stage casing drill body 3 and back segment drill body 4, and the diameter of stage casing drill body 3 is less than the diameter of back segment drill body 4, back segment drill body 4 is connected with stage casing drill body 3 transition, its junction is formed with drill lip 5, and the both sides of apex point 2 have spiral respectively and are located at stage casing drill body 3 and the chip area 6 on back segment drill body 4, wherein, the angle of apex point 2 is equal with the angle of drill lip 5, generally the angle of apex point 2 is set to 130 °-140 °.
In the present embodiment, the angle of apex point 2 is 135 °, and the angle of drill lip 5 is 135 °.
As shown in Figure 1, the surface of stage casing drill body 3 part between two chip areas 6 is provided with chip pocket 7, a side of chip area 6 is the parabola shaped face 1 inwardly concaved, parabola shaped face 1 is provided with cutting edge with the junction of chip pocket 7, and the another side of chip area 6 is outwardly parabola shaped face 2 62.
As shown in Figure 1, apex point 2 has interior cold hole 1; Drill lip 5 has interior cold hole 2 92.
This staged fluted drill is coaxially arranged due to stage casing drill body 3 and rear end drill body, and add and first use stage casing drill body 3 machining small man-hour, then use the further reaming in type aperture of rear end drill body, machining accuracy is high, and working (machining) efficiency is high; Because stage casing drill body 3 is different from the diameter of back segment drill body 4, can be used for the layer hole processing different-diameter, working (machining) efficiency is high; Apex point 2 and drill lip 5 arrange interior cold hole respectively, and add man-hour cooling fluid and arrive apex point 2 and drill lip 5 place in time, good cooling results, improves the machining accuracy of this fluted drill.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (6)
1. a staged fluted drill, comprise drillstock (1) and drill bit, it is characterized in that, described drill bit comprises apex point (2), stage casing drill body (3) and back segment drill body (4), the diameter in described stage casing drill body (3) is less than the diameter of back segment drill body (4), described back segment drill body (4) is connected with stage casing drill body (3) transition, its junction is formed with drill lip (5), the both sides of described apex point (2) have spiral respectively and are located at stage casing drill body (3) and the chip area (6) on back segment drill body (4), and the angle of described apex point (2) is equal with the angle of drill lip (5).
2. staged fluted drill according to claim 1, is characterized in that, the angle of described apex point (2) is 130 °-140 °.
3. staged fluted drill according to claim 2, is characterized in that, the angle of described apex point (2) is 135 °.
4. the staged fluted drill according to claim 1 or 2 or 3, it is characterized in that, the surface part be positioned between two chip areas (6) in described stage casing drill body (3) is provided with chip pocket (7), a side of described chip area (6) is the parabola shaped face one (61) inwardly concaved, described parabola shaped face one (61) is provided with cutting edge (8) with the junction of chip pocket (7), and the another side of described chip area (6) is outwardly parabola shaped face two (62).
5. staged fluted drill according to claim 4, is characterized in that, described apex point (2) has interior cold hole one (91).
6. staged fluted drill according to claim 5, is characterized in that, described drill lip (5) has interior cold hole two (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420559127.2U CN204108417U (en) | 2014-09-27 | 2014-09-27 | Staged fluted drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420559127.2U CN204108417U (en) | 2014-09-27 | 2014-09-27 | Staged fluted drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204108417U true CN204108417U (en) | 2015-01-21 |
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ID=52325775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420559127.2U Expired - Fee Related CN204108417U (en) | 2014-09-27 | 2014-09-27 | Staged fluted drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204108417U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458355A (en) * | 2015-12-03 | 2016-04-06 | 洛阳丰泰铝业有限公司 | Multifunctional spiral bit |
| CN105665799A (en) * | 2016-04-19 | 2016-06-15 | 深圳市金洲精工科技股份有限公司 | Semicircular drill |
| CN106825688A (en) * | 2017-01-03 | 2017-06-13 | 广州飞机维修工程有限公司 | Draw hole instrument and technique for the big wing main bearing beam repairing section bar drilling of aircraft |
| CN112775469A (en) * | 2020-12-30 | 2021-05-11 | 株洲钻石切削刀具股份有限公司 | Stepped cutter and design method for position of inner cooling hole thereof |
| CN113020668A (en) * | 2021-02-07 | 2021-06-25 | 株洲钻石切削刀具股份有限公司 | Stepped cutting tool |
| CN113798781A (en) * | 2020-06-15 | 2021-12-17 | 河南中岳非晶新型材料股份有限公司 | Machining process of air blowing guide pipe |
-
2014
- 2014-09-27 CN CN201420559127.2U patent/CN204108417U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458355A (en) * | 2015-12-03 | 2016-04-06 | 洛阳丰泰铝业有限公司 | Multifunctional spiral bit |
| CN105665799A (en) * | 2016-04-19 | 2016-06-15 | 深圳市金洲精工科技股份有限公司 | Semicircular drill |
| WO2017181558A1 (en) * | 2016-04-19 | 2017-10-26 | 深圳市金洲精工科技股份有限公司 | Semicircular drill |
| CN106825688A (en) * | 2017-01-03 | 2017-06-13 | 广州飞机维修工程有限公司 | Draw hole instrument and technique for the big wing main bearing beam repairing section bar drilling of aircraft |
| CN113798781A (en) * | 2020-06-15 | 2021-12-17 | 河南中岳非晶新型材料股份有限公司 | Machining process of air blowing guide pipe |
| CN112775469A (en) * | 2020-12-30 | 2021-05-11 | 株洲钻石切削刀具股份有限公司 | Stepped cutter and design method for position of inner cooling hole thereof |
| CN113020668A (en) * | 2021-02-07 | 2021-06-25 | 株洲钻石切削刀具股份有限公司 | Stepped cutting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |