CN209272574U - A kind of interior cold step drill for processing structural alloy steel coupler bore - Google Patents
A kind of interior cold step drill for processing structural alloy steel coupler bore Download PDFInfo
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- CN209272574U CN209272574U CN201821925389.0U CN201821925389U CN209272574U CN 209272574 U CN209272574 U CN 209272574U CN 201821925389 U CN201821925389 U CN 201821925389U CN 209272574 U CN209272574 U CN 209272574U
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- angle
- ladder
- blade
- alloy steel
- rear side
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Abstract
The utility model discloses cold step drills in a kind of processing structural alloy steel coupler bore, including blade and shank, the blade includes apex angle, apex point, hold sword, hold sword flank, the angle R, cascaded surface, ladder angle, form ladder angle one, form ladder angle two, back and chip space, the apex angle is arranged in blade front end, the rear side of apex angle is arranged in apex point, sword is held to be arranged between apex point and the angle R, the rear side at the angle R is arranged in cascaded surface, molding ladder angle one and molding ladder angle two are successively set on rear side of cascaded surface, the back extends to blade tail end from end sword flank, chip space extends to blade tail portion on rear side of the sword of end.The utility model integrates that hole bottom chamfer, surface scraping, multi-ladder chamfer machining are multi-functional, and the time of cutter is replaced when reducing processing structural alloy steel coupler bore, high in machining efficiency.
Description
Technical field
The utility model relates to cutting-tool engineering fields, specifically, be it is a kind of processing structural alloy steel coupler bore it is interior cold
Step drill.
Background technique
Drill bit is mainly used for the roughing in hole, with machinery as an important component in machining tool
The development of industry, user are proposed more the processing quality of product, process reliability, processing efficiency, delivery date of cutter etc.
High request.Step drill is widely used in hole machined, bores the drill bit that rank forms by one group of different-diameter by certain design requirement,
It can be realized the hole different to one group of aperture and carry out drilling and chamfering processing, once drilling out the stepped hole that diameter does not wait need not replace
The drill bit of different-diameter substantially increases production effect.And existing step drill due to cutting edge design so that drill bit connects with workpiece
It when touching, is subjected to displacement, workpiece surface is caused chatter mark occur, chatter mark is to the processing quality of workpiece surface, machining accuracy and some
Practical performance produces certain influence, and product defect rate is caused to increase.
Utility model content
Purpose of utility model: for above-mentioned existing problem and shortage in the prior art, the purpose of this utility model is
A kind of interior cold step drill for processing structural alloy steel coupler bore is provided.
Technical solution: in order to achieve the above objectives, a kind of processing structural alloy steel coupler bore described in the utility model
Interior cold step drill, including blade and shank, the blade include apex angle, apex point, end sword, end sword flank, the angle R, cascaded surface, rank
Terraced angle, molding ladder angle one, molding ladder angle two, back and chip space, the apex angle setting is in blade front end, apex point setting
In the rear side of apex angle, sword is held to be arranged between apex point and the angle R, the rear side at the angle R is arranged in cascaded surface, forms ladder angle one and molding
Ladder angle two is successively set on rear side of cascaded surface, and the back extends to blade tail end from end sword flank, and chip space is from end sword
Rear side extends to blade tail portion.
Further, the end sword flank is equipped with apopore, and the blade and shank centerline run through equipped with even
Sink, shank tail portion water injection hole, the apopore and water injection hole connect with even sink.The design of even sink and apopore,
It is able to solve the heat dissipation problem of cutter in process, improves cutting-tool's used life.
Further, ladder flank one and ladder flank two, the rank are successively arranged on the arcwall face at the back
The rear side of terraced flank two is equipped with ladder sword.
Further, the side at the back is equipped with double seamed edges, and double seamed edges extend among back from back end
Position.
Further, the diameter of the tail portion of the blade is greater than the diameter of shank.
Further, the angle at the ladder angle is 45 ° ± 30 ', and the angle at the molding ladder angle one is 20 ° ± 30 ',
The angle at the molding ladder angle two is 55 ° ± 30 '.
Further, the apex angle is 140 ° ± 30 '.
Above-mentioned technical proposal can be seen that the utility model has the following beneficial effects:
A kind of interior cold step drill for processing structural alloy steel coupler bore described in the utility model, collection hole bottom chamfer are scraped
Plane, multi-ladder chamfer machining are multi-functional in one, and the time of cutter is replaced when reducing processing structural alloy steel coupler bore, is added
Work is high-efficient, and this step drill solves cutter work in-process by correcting anterior angle design method to the special ladder of blade
Chatter mark problem.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the local structural graph of blade；
Fig. 3 is the left view of Fig. 1.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.
A kind of interior cold step drill of processing structural alloy steel coupler bore as shown in Figs. 1-3, including blade 1 and shank 2,
The blade 1 includes apex angle 11, apex point 12, end sword 13, end sword flank 14, the angle R 15, cascaded surface 16, ladder angle 17, molding rank
Terraced angle 1, molding ladder angle 2 19, back 110 and chip space 111, the apex angle 11 are arranged in 1 front end of blade, apex point 12
The rear side of apex angle 11 is set, end sword 13 is arranged between apex point 12 and the angle R 15, and the rear side at the angle R 15 is arranged in cascaded surface 16, at
Type ladder angle 1 and molding ladder angle 2 19 are successively set on the rear side of cascaded surface 16, and the back 110 is from end sword flank 14
1 tail end of blade is extended to, chip space 111 extends to 1 tail portion of blade on rear side of the sword 13 of end.The end sword flank 14 is equipped with
Water hole 141, the blade 1 and 2 centerline of shank, which run through, is equipped with even sink 3,2 tail portion water injection hole 21 of shank, the apopore
141 and water injection hole 21 connect with even sink 3.
One 110a of ladder flank and ladder flank two are successively arranged on the arcwall face at back 110 described in the present embodiment
The rear side of 110b, the ladder flank two are equipped with ladder sword 110c.
The side at back 110 described in the present embodiment is equipped with double seamed edge 110d, double seamed edge 110d from 110 end of back
Extend to 110 middle position of back.
The diameter of the tail portion of blade 1 described in the present embodiment is greater than the diameter of shank 2.
The angle of ladder angle described in the present embodiment 17 is 45 ° ± 30 ', and the angle at the molding ladder angle 1 is 20 °
± 30 ', the angle at the molding ladder angle 2 19 is 55 ° ± 30 '.
Apex angle 11 described in the present embodiment is 140 ° ± 30 '.
Embodiment is merely to illustrate the utility model rather than limitation the scope of the utility model, and having read, this is practical
After novel, it is as defined in the appended claims that those skilled in the art fall within the application to the various equivalences of the utility model
Range.
Claims (7)
1. a kind of interior cold step drill for processing structural alloy steel coupler bore, it is characterised in that: including blade (1) and shank (2),
The blade (1) include apex angle (11), apex point (12), end sword (13), end sword flank (14), the angle R (15), cascaded surface (16),
Ladder angle (17), molding ladder angle one (18), molding ladder angle two (19), back (110) and chip space (111), the apex angle
(11) setting is in blade (1) front end, and apex point (12) is arranged the rear side in apex angle (11), end sword (13) setting in apex point (12) and
Between the angle R (15), the rear side in the angle R (15) is arranged in cascaded surface (16), forms ladder angle one (18) and molding ladder angle two (19)
It is successively set on rear side of cascaded surface (16), the back (110) extends to blade (1) tail end, chip removal from end sword flank (14)
Slot (111) extends to blade (1) tail portion on rear side of end sword (13).
2. a kind of interior cold step drill for processing structural alloy steel coupler bore according to claim 1, it is characterised in that: institute
It states end sword flank (14) and is equipped with apopore (141), the blade (1) and shank (2) centerline run through equipped with even sink
(3), shank (2) tail portion water injection hole (21), the apopore (141) and water injection hole (21) connect with even sink (3).
3. a kind of interior cold step drill for processing structural alloy steel coupler bore according to claim 1, it is characterised in that: institute
It states and is successively arranged ladder flank one (110a) and ladder flank two (110b), the ladder on the arcwall face of back (110)
The rear side of flank two is equipped with ladder sword (110c).
4. a kind of interior cold step drill for processing structural alloy steel coupler bore according to claim 3, it is characterised in that: institute
The side for stating back (110) is equipped with double seamed edges (110d), and double seamed edges (110d) extend to back from back (110) end
(110) middle position.
5. a kind of interior cold step drill for processing structural alloy steel coupler bore according to claim 1, it is characterised in that: institute
The diameter for stating the tail portion of blade (1) is greater than the diameter of shank (2).
6. a kind of interior cold step drill for processing structural alloy steel coupler bore according to claim 1, it is characterised in that: institute
The angle for stating ladder angle (17) is 45 ° ± 30 ', and the angle of molding ladder angle one (18) is 20 ° ± 30 ', the molding rank
The angle of terraced angle two (19) is 55 ° ± 30 '.
7. a kind of interior cold step drill for processing structural alloy steel coupler bore according to claim 6, it is characterised in that: institute
Stating apex angle (11) is 140 ° ± 30 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821925389.0U CN209272574U (en) | 2018-11-21 | 2018-11-21 | A kind of interior cold step drill for processing structural alloy steel coupler bore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821925389.0U CN209272574U (en) | 2018-11-21 | 2018-11-21 | A kind of interior cold step drill for processing structural alloy steel coupler bore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209272574U true CN209272574U (en) | 2019-08-20 |
Family
ID=67602111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821925389.0U Active CN209272574U (en) | 2018-11-21 | 2018-11-21 | A kind of interior cold step drill for processing structural alloy steel coupler bore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209272574U (en) |
-
2018
- 2018-11-21 CN CN201821925389.0U patent/CN209272574U/en active Active
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