CN209272572U - A kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole - Google Patents
A kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole Download PDFInfo
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- CN209272572U CN209272572U CN201821920379.8U CN201821920379U CN209272572U CN 209272572 U CN209272572 U CN 209272572U CN 201821920379 U CN201821920379 U CN 201821920379U CN 209272572 U CN209272572 U CN 209272572U
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- sword
- blade
- flank
- chamfering
- hardened
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Abstract
The utility model discloses cold step drills in a kind of processing non-hardened and tempered steel common rail inner hole, including blade and shank, blade includes plane sword, chamfering blades, end face sword, hold sword flank, chamfering flank, form flank, chip pocket and back, the front end of blade is arranged in plane sword, chamfering blades are arranged among end face sword and plane sword, end sword flank is equipped on rear side of plane sword, the rear side of sword flank is held to be equipped with chamfering flank, the rear side of chamfering flank is arranged in molding flank, back is arranged the rear side of knife face after shaping and extends to blade tail portion, chip pocket extends to blade tail portion from blade end.Hole bottom chamfer, surface scraping, orifice chamfer are processed multi-functional be integrated in one by the utility model, reduce the process of tool tool changing, accelerate processing efficiency, this step drill passes through the design of plane sword, chamfering blades, end face sword, the forward and backward angle of hole machined and Passivation Treatment in realizing, not only it had solved the problems, such as the chatter mark of cutter work in-process, but also has improved cutter life.
Description
Technical field
The utility model relates to cutting-tool engineering fields, are a kind of interior cold ranks for processing non-hardened and tempered steel common rail inner hole specifically
Ladder bores.
Background technique
Non-hardened and tempered steel can be realized high tough by the metallurgical technologies and Controlled Rolling And Controlled Cooling etc. such as microalloying, oxide
Property matching degree, the application of non-hardened and tempered steel not only can be omitted quenched process, saves manufacture energy consumption, cost be reduced, in addition, Micro Alloying
Steel can reduce quenched strain cracking caused by quenching in the process, to simplify aligning process, therefore, non-hardened and tempered steel is in automobile work
The energy consumption consumption during part manufacturing can be significantly reduced in the application of industry.
For common rail workpiece made of non-hardened and tempered steel using cutter carry out inner hole process in, need a plurality of cutters into
Row drilling processing, processing efficiency is low, and vibration is easy to appear during tool sharpening, and cutter and workpiece surface produce position
It moves, workpiece surface is caused chatter mark occur, chatter mark generates the processing quality of workpiece surface, machining accuracy and some practical performances
Certain influence causes product defect rate to increase.
Therefore, it is necessary to cold step drills in a kind of processing non-hardened and tempered steel common rail inner hole, for solving above-mentioned technical problem
It is insufficient.
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
Provide a kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole.
Technical solution: in order to achieve the above objectives, it is described in the utility model it is a kind of processing non-hardened and tempered steel common rail inner hole it is interior
Cold step drill, including blade and shank, the blade include knife after plane sword, chamfering blades, end face sword, end sword flank, chamfering
The front end of blade is arranged in face, molding flank, chip pocket and back, plane sword, and chamfering blades are arranged in end face sword and plane
End sword flank is equipped among sword, on rear side of the plane sword, the rear side of end sword flank is equipped with chamfering flank, forms flank
The rear side of chamfering flank is set, and back setting the rear side of knife face and extends to blade tail portion after shaping, and chip pocket is from sword
Portion end extends to blade tail portion.
Further, be additionally provided with cascaded surface on the back, the width at the back towards blade tail portion direction gradually
It broadens, the back side is additionally provided with double seamed edges.
Further, the chamfering flank is equipped with interior cold hole, runs through design and interior cold hole at blade and shank center
The inner cooling path of perforation, the shank tail portion are equipped with the water inlet communicated with inner cooling path.
Further, the plane sword and end face sword are vertical with horizontal axis, the chamfering blades and horizontal axis institute at
Angle is 70 °.
Further, the tail diameter of the blade and the diameter of shank are equal.
Further, the shank and blade are integrally formed, and the shank and blade coaxial design.
Further, the shank and blade are that cemented carbide material is made.
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 non-hardened and tempered steel common rail inner hole described in the utility model, it is reasonable in design, it will
Hole bottom chamfer, surface scraping, orifice chamfer processing it is multi-functional be integrated in one, reduce the process of tool tool changing, accelerate processing effect
Rate, this step drill pass through the design of plane sword, chamfering blades, end face sword, realize forward and backward angle and the Passivation Treatment of interior hole machined, both
It solves the problems, such as the chatter mark of cutter work in-process, and improves cutter life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial structural diagram of the utility model blade；
Fig. 3 is the end structure illustration of the blade of the utility model.
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 non-hardened and tempered steel common rail inner hole as shown in Figs. 1-3, including blade 1 and shank 2, institute
State blade 1 include plane sword 11, chamfering blades 12, end face sword 13, end sword flank 14, chamfering flank 15, molding flank 16,
The front end of blade 1 is arranged in chip pocket 17 and back 18, plane sword 11, and chamfering blades 12 are arranged in end face sword 13 and plane sword 11
Centre, end sword flank 14 is equipped on rear side of the plane sword 11, and the rear side of end sword flank 14 is equipped with chamfering flank 15, molding
The rear side of chamfering flank 15 is arranged in flank 16, and back 18 is arranged the rear side of knife face 16 after shaping and extends to blade 1
Tail portion, chip pocket 17 extend to 1 tail portion of blade from 1 end of blade.
It is additionally provided with cascaded surface 19 on back 18 described in the present embodiment, the width at the back 18 is towards 1 tail portion of blade
Direction gradually broadens, and 18 side of back is additionally provided with double seamed edges 181.
Chamfering flank described in the present embodiment 15 is equipped with interior cold hole 151, runs through design at 2 center of blade 1 and shank
With the inner cooling path 3 of interior cold hole perforation, 2 tail portion of shank is equipped with the water inlet 21 communicated with inner cooling path 3.
Plane sword described in the present embodiment 11 and end face sword 13 are vertical with horizontal axis, the chamfering blades 12 and trunnion axis
Line angle is 70 °.
The tail diameter of blade 1 described in the present embodiment is equal with the diameter of shank 2.
Shank 2 described in the present embodiment and blade 1 are integrally formed, and 1 coaxial design of the shank 2 and blade.
Shank 2 described in the present embodiment and blade 1 are that cemented carbide material is made.
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 non-hardened and tempered steel common rail inner hole, it is characterised in that: including blade (1) and shank (2), institute
State blade (1) include plane sword (11), chamfering blades (12), end face sword (13), end sword flank (14), chamfering flank (15),
Flank (16), chip pocket (17) and back (18), plane sword (11) is formed to be arranged in the front end of blade (1), chamfering blades
(12) setting is intermediate in end face sword (13) and plane sword (11), and end sword flank (14), end are equipped on rear side of the plane sword (11)
The rear side of sword flank (14) is equipped with chamfering flank (15), and molding flank (16) is arranged after chamfering flank (15)
Side, back (18) setting the rear side of knife face (16) and extend to blade (1) tail portion after shaping, and chip pocket (17) is from blade (1)
End extends to blade (1) tail portion.
2. a kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole according to claim 1, it is characterised in that: described
It is additionally provided on back (18) cascaded surface (19), the direction of width towards blade (1) tail portion of the back (18) gradually broadens, institute
It states back (18) side and is additionally provided with double seamed edges (181).
3. a kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole according to claim 2, it is characterised in that: described
Chamfering flank (15) is equipped with interior cold hole (151), penetrates through through design with interior cold hole at blade (1) and shank (2) center
Inner cooling path (3), shank (2) tail portion are equipped with the water inlet (21) communicated with inner cooling path (3).
4. a kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole according to claim 3, it is characterised in that: described
Plane sword (11) and end face sword (13) are vertical with horizontal axis, and the chamfering blades (12) and horizontal axis angle are 70 °.
5. a kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole according to claim 1, it is characterised in that: described
The tail diameter of blade (1) is equal with the diameter of shank (2).
6. a kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole according to claim 1, it is characterised in that: described
Shank (2) and blade (1) are integrally formed, and the shank (2) and blade (1) coaxial design.
7. a kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole according to claim 1, it is characterised in that: described
Shank (2) and blade (1) are that cemented carbide material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920379.8U CN209272572U (en) | 2018-11-21 | 2018-11-21 | A kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920379.8U CN209272572U (en) | 2018-11-21 | 2018-11-21 | A kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209272572U true CN209272572U (en) | 2019-08-20 |
Family
ID=67602035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821920379.8U Active CN209272572U (en) | 2018-11-21 | 2018-11-21 | A kind of interior cold step drill for processing non-hardened and tempered steel common rail inner hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209272572U (en) |
-
2018
- 2018-11-21 CN CN201821920379.8U patent/CN209272572U/en active Active
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