CN206009944U - Cold-smoothing bottom step expanding drill in overall HM - Google Patents
Cold-smoothing bottom step expanding drill in overall HM Download PDFInfo
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- CN206009944U CN206009944U CN201620951721.5U CN201620951721U CN206009944U CN 206009944 U CN206009944 U CN 206009944U CN 201620951721 U CN201620951721 U CN 201620951721U CN 206009944 U CN206009944 U CN 206009944U
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- chip end
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Abstract
This utility model is a kind of reamer, cold-smoothing bottom step expanding drill in more particularly to a kind of overall HM.Including handle of a knife, the left end of described handle of a knife is through hole chip end, the outer end at described through hole chip end is provided with blind hole chip end, taper chip end is provided between described through hole chip end and blind hole chip end, the outer wall at described through hole chip end is provided with the chip trough being distributed in the shape of a spiral, described chip trough extends to the outermost end at blind hole chip end, and described handle of a knife, through hole chip end, blind hole chip end, taper chip end are in overall distribution.Cold-smoothing bottom step expanding drill compact conformation in overall HM, performance are outstanding, improve product quality.
Description
Technical field
This utility model is a kind of reamer, cold-smoothing bottom step expanding drill in more particularly to a kind of overall HM.
Background technology
When processing blind hole of the prior art or through hole, generally require because cutting performance is not good, machining accuracy is not high.
Chinese patent 201610217242.5, discloses a kind of taper ball head milling cutter, and which includes：Head and head connection
Cervical region and the shank being connected with the cervical region, wherein, the head is provided with chip area, for forming the entity of the chip area
Form partly and at the intersection of the chip area and entity part cutting edge, wherein, the cutting edge be provided with rake face and after
Knife face, the rake face of the cutting edge are contacted with workpiece with anterior angle, and the rear knife face of the cutting edge contacts tool with workpiece
There are two relief angles, respectively the first relief angle and the second relief angle.The use intensity and performance of this structure be not relatively high, it is impossible to full
The existing demand of foot.
Utility model content
This utility model mainly solves the deficiencies in the prior art, compact conformation, and lifting operation precision, makes
With cold-smoothing bottom step expanding drill in the high overall HM of environment suitability.
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals：
Cold-smoothing bottom step expanding drill in a kind of overall HM, including handle of a knife, the left end of described handle of a knife is through hole chip end, institute
The outer end at the through hole chip end that states is provided with blind hole chip end, is provided with taper chip between described through hole chip end and blind hole chip end
End, the outer wall at described through hole chip end are provided with the chip trough being distributed in the shape of a spiral, and described chip trough extends to blind hole chip
The outermost end at end, described handle of a knife, through hole chip end, blind hole chip end, taper chip end are in overall distribution；
The total length at described through hole chip end, blind hole chip end and taper chip end：Length=1 of handle of a knife：2.6；
The outer end at described blind hole chip end is provided with cutter head, and the diameter at described blind hole chip end is less than through hole chip end
Diameter；
The right-hand end of described handle of a knife is provided with fixing end, is provided with through hole in described cutter head.
Preferably, the outer end of described cutter head inwall is provided with indent otch, the outer end of described cutter head is provided with to evagination
The outer protruding end for going out, described outer protruding end are distributed in shape is connected with indent otch.
Preferably, the angle at described taper chip end is 40 degree, the material of hole drill is rustless steel.
Therefore, cold-smoothing bottom step expanding drill in the overall HM that this utility model is provided, compact conformation, performance are outstanding, improve
Product quality.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is side structure schematic view of the present utility model.
Specific embodiment
Below by embodiment, and accompanying drawing is combined, the technical solution of the utility model is described in further detail.
Embodiment：As depicted in figs. 1 and 2, cold-smoothing bottom step expanding drill in a kind of overall HM, including handle of a knife 1, described knife
The left end of handle 1 is through hole chip end 2, and the outer end at described through hole chip end 2 is provided with blind hole chip end 3, described through hole chip
Taper chip end 4 is provided between end 2 and blind hole chip end 3, the outer wall at described through hole chip end 2 is provided with cutting of being distributed in the shape of a spiral
Bits groove 5, described chip trough 5 extend to the outermost end at blind hole chip end 3, described handle of a knife 1, through hole chip end 2, blind hole chip
End 3, taper chip end 4 is in overall distribution；
Described through hole chip end 2, blind hole chip end 3, the total length at taper chip end 4：Length=1 of handle of a knife 1：2.6；
The outer end at described blind hole chip end 3 is provided with cutter head 6, and the diameter at described blind hole chip end 3 is less than through hole chip
The diameter at end 2；
The right-hand end of described handle of a knife 1 is provided with fixing end 7, is provided with through hole 8 in described cutter head 6.
The outer end of described 6 inwall of cutter head is provided with indent otch 9, and it is outer that the outer end of described cutter head 6 is provided with outwardly
Protruding end 10, described outer protruding end 10 are distributed in shape is connected with indent otch 9.
The angle at described taper chip end 4 is 40 degree, and the material of hole drill is rustless steel.
Claims (3)
1. cold-smoothing bottom step expanding drill in a kind of overall HM, it is characterised in that：Including handle of a knife（1）, described handle of a knife（1）Left end
For through hole chip end（2）, described through hole chip end（2）Outer end be provided with blind hole chip end（3）, described through hole chip end
（2）With blind hole chip end（3）Between be provided with taper chip end（4）, described through hole chip end（2）Outer wall be provided with and divide in the shape of a spiral
The chip trough of cloth（5）, described chip trough（5）Extend to blind hole chip end（3）Outermost end, described handle of a knife（1）, through hole cuts
Bits end（2）, blind hole chip end（3）, taper chip end（4）It is in overall distribution；
Described through hole chip end（2）, blind hole chip end（3）, taper chip end（4）Total length：Handle of a knife（1）Length=1：
2.6；
Described blind hole chip end（3）Outer end be provided with cutter head（6）, described blind hole chip end（3）Diameter cut less than through hole
Bits end（2）Diameter；
Described handle of a knife（1）Right-hand end be provided with fixing end（7）, described cutter head（6）In be provided with through hole（8）.
2. cold-smoothing bottom step expanding drill in overall HM according to claim 1, it is characterised in that：Described cutter head（6）Interior
The outer end of wall is provided with indent otch（9）, described cutter head（6）Outer end be provided with outer protruding end outwardly（10）, described is outer
Protruding end（10）With indent otch（9）In connection shape distribution.
3. cold-smoothing bottom step expanding drill in overall HM according to claim 1, it is characterised in that：Described taper chip end
（4）Angle be 40 degree, the material of hole drill is rustless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620951721.5U CN206009944U (en) | 2016-08-27 | 2016-08-27 | Cold-smoothing bottom step expanding drill in overall HM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620951721.5U CN206009944U (en) | 2016-08-27 | 2016-08-27 | Cold-smoothing bottom step expanding drill in overall HM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206009944U true CN206009944U (en) | 2017-03-15 |
Family
ID=58252757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620951721.5U Active CN206009944U (en) | 2016-08-27 | 2016-08-27 | Cold-smoothing bottom step expanding drill in overall HM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206009944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098025A (en) * | 2018-02-01 | 2018-06-01 | 苏州阿诺精密切削技术有限公司 | For the cornish bit of ultrashort ladder hole machined |
| CN110605611A (en) * | 2019-09-11 | 2019-12-24 | 湖北大冶汉龙发动机有限公司 | Chip discharging angle control method with inner cooling tool |
-
2016
- 2016-08-27 CN CN201620951721.5U patent/CN206009944U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098025A (en) * | 2018-02-01 | 2018-06-01 | 苏州阿诺精密切削技术有限公司 | For the cornish bit of ultrashort ladder hole machined |
| CN108098025B (en) * | 2018-02-01 | 2023-10-03 | 苏州阿诺精密切削技术有限公司 | Reaming cutter for processing ultra-short stepped hole |
| CN110605611A (en) * | 2019-09-11 | 2019-12-24 | 湖北大冶汉龙发动机有限公司 | Chip discharging angle control method with inner cooling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |