CN205967542U - Integrative cutter of rimer - Google Patents
Integrative cutter of rimer Download PDFInfo
- Publication number
- CN205967542U CN205967542U CN201620959872.5U CN201620959872U CN205967542U CN 205967542 U CN205967542 U CN 205967542U CN 201620959872 U CN201620959872 U CN 201620959872U CN 205967542 U CN205967542 U CN 205967542U
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- China
- Prior art keywords
- piece
- cutter
- knife
- pcd
- handle
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Abstract
The utility model discloses an integrative cutter of rimer, including cutter body and handle of a knife, the cutter body includes drilling portion, counterbore portion and the connecting portion that connect gradually after the past extremely, drilling portion is including being twist type's base member, and the embedding of base member front end is fixed with the PCD piece in order forming the drill tip, and PCD piece and base member sinter molding as an organic whole, the PCD piece is central symmetry about the center of drill tip, be fixed with two counter boring blades in the counterbore portion, two counter boring blades are central symmetry and distribute, and the front end of counter boring blade extends to the rear portion of drilling portion, be equipped with the chip groove along the hand of spiral on the connecting portion. The utility model discloses guarantee the axiality of counterbore processing, alleviateed the cutter grinder damage, improved work efficiency, drill tip department adopts the compound piece of the PCD of overall sintering formula, solves work piece drill way burr and aliquation problem, has improved the life of machining precision and cutter.
Description
Technical field
This utility model belongs to drilling tool technical field and in particular to a kind of counterbit integrated cutter.
Background technology
When work piece carries out spot-facing, need subdrilling to cut out hole, then carry out chamfering or counterbore processing, be so accomplished by
Use different machining tools, to complete through two steps or multistep manufacturing procedure, working (machining) efficiency is relatively low；Meanwhile, using different
Machining tool, in the course of processing, axiality is difficult to control, and the hole precision processing is relatively low.
Though there being patent to disclose combination counterbit, installing the fluted drill for deep hole processing in the front end of existing counterbit, subtracting
Lack manufacturing procedure it is ensured that axiality, but when work piece is relatively thin, fluted drill is easy with the joining place of fluted drill rear counterbit
Work piece is made to be stuck；When work piece is thicker, the bit head of fluted drill is easy to wear, so can lead to the hole of work piece
Burr and aliquation phenomenon in mouth.
Utility model content
Based on the deficiencies in the prior art, this utility model provides a kind of counterbit integrated cutter.
To achieve these goals, the technical scheme that this utility model is taken is as follows：
A kind of counterbit integrated cutter, including cutter hub and the handle of a knife that is connected to cutter hub rear end, the cylindrical polished rod of described handle of a knife,
It is characterized in that：Described cutter hub includes bore portion, spot-facing portion and the connecting portion being sequentially connected from front to back, bore portion, spot-facing portion
And the longitudinal center line of connecting portion is all coincided with the longitudinal center line of handle of a knife；Described bore portion includes the matrix in twisted shape,
Matrix front end embeds and is fixed with PCD piece to form apex point, and PCD piece is integrated sinter molding with matrix, and described PCD piece is with regard to boring
The center of point is centrosymmetric；Two counter boring blades for processing conical hole are fixed with spot-facing portion, two counter boring blades are in
Centrosymmetry is distributed, and the front end of counter boring blade extends to the rear portion of bore portion；The diameter of described connecting portion and spot-facing portion rear end face
Diameter identical, connecting portion is provided with chip area along the hand of spiral.
Preferably, described cutter hub and handle of a knife are formed in one, and the diameter of handle of a knife is less than the diameter of connecting portion.
This utility model ensure that the axiality of spot-facing processing, alleviates tool wear, improves work efficiency；At apex point
Using will be integrally sintered to PCD piece and matrix, such PCD piece can change its rake face structure in apex point allowed band,
Apex point can make Double Tops angle into by single drift angle, solves the problems, such as work piece aperture burr and aliquation, improves machining accuracy and cutter
Service life.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is the partial enlarged drawing at A in Fig. 1.
Specific embodiment
As shown in Figures 1 and 2, a kind of counterbit integrated cutter, including cutter hub and the handle of a knife 3 that is connected to cutter hub rear end, described
Cutter hub and handle of a knife 3 are formed in one, the cylindrical polished rod of described handle of a knife 3.Described cutter hub includes the brill being sequentially connected from front to back
Hole portion 1, spot-facing portion 6 and connecting portion 2, the longitudinal center line of bore portion 1, spot-facing portion 6 and connecting portion 2 all with the axial direction of handle of a knife 3 in
Heart line coincides.Described bore portion 1 includes the matrix in twisted shape, and matrix front end embeds and is fixed with PCD piece 4 to form apex point,
And PCD piece 4 is integrated sinter molding with matrix, described PCD piece 4 is centrosymmetric with regard to the center of apex point.Described spot-facing portion 6 is in
Conical surface transition, and the diameter of spot-facing portion 6 front end face is identical with the external diameter of bore portion 1 rear end face, and spot-facing portion 6 is fixed with two use
In the counter boring blade 5 of processing conical hole, two counter boring blades 5 are centrosymmetric distribution, and the front end of counter boring blade 5 extends to boring
The rear portion in portion 1, the diameter with diameter greater than spot-facing portion 6 front end face of spot-facing portion 6 rear end face；The diameter of described connecting portion 2 and spot-facing
The diameter of portion 6 rear end face is identical, and connecting portion 2 is provided with chip area 7 along the hand of spiral.
Wherein, PCD piece 4 is ordinary commercial products, and according to being welded and fixed, PCD piece 4 need to be rectangular blade to PCD piece 4, bores
It is flat that sharp place is difficult welding, and has weld seam after welding, so will impact boring crudy, as jagged in hole exits or
Layer, also can affect cutting-tool's used life；Bore portion 1 matrix and PCD piece 4 adopt one sinter molding, it is to avoid PCD piece 4 because
It is welded and fixed the structure constraint causing, PCD piece 4 can run through the apex point that bore portion 1 front end face forms Double Tops angle, be effectively ensured and be subject to
Power is stable, equilibrium, thus improve machining accuracy and aperture, hole wall surface quality.When work piece carries out spot-facing, boring
Portion 1 carries out Drilling operation first, and then spot-facing portion 6 processes cone shaped countersink, and bore portion 1 plays guide effect to spot-facing portion 6, protects
Demonstrate,prove axiality.
Claims (2)
1. a kind of counterbit integrated cutter, including cutter hub and the handle of a knife that is connected to cutter hub rear end, described handle of a knife（3）Cylindrical light
Bar it is characterised in that：Described cutter hub includes the bore portion being sequentially connected from front to back（1）, spot-facing portion（6）And connecting portion（2）, bore
Hole portion（1）, spot-facing portion（6）And connecting portion（2）Longitudinal center line all and handle of a knife（3）Longitudinal center line coincide；Described brill
Hole portion（1）Including the matrix in twisted shape, matrix front end embeds and is fixed with PCD piece（4）To form apex point, and PCD piece（4）With base
Body is integrated sinter molding, described PCD piece（4）Center with regard to apex point is centrosymmetric；Spot-facing portion（6）On be fixed with two use
Counter boring blade in processing conical hole（5）, two counter boring blades（5）Be centrosymmetric distribution, counter boring blade（5）Front end extend
To bore portion（1）Rear portion；Described connecting portion（2）Diameter and spot-facing portion（6）The diameter of rear end face is identical, connecting portion（2）On
It is provided with chip area along the hand of spiral（7）.
2. counterbit integrated cutter according to claim 1 it is characterised in that：Described cutter hub and handle of a knife（3）It is formed in one,
And handle of a knife（3）Diameter be less than connecting portion（2）Diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959872.5U CN205967542U (en) | 2016-08-29 | 2016-08-29 | Integrative cutter of rimer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959872.5U CN205967542U (en) | 2016-08-29 | 2016-08-29 | Integrative cutter of rimer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205967542U true CN205967542U (en) | 2017-02-22 |
Family
ID=58036847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620959872.5U Active CN205967542U (en) | 2016-08-29 | 2016-08-29 | Integrative cutter of rimer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205967542U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717020A (en) * | 2017-10-31 | 2018-02-23 | 湖南科技大学 | Carbon fibre reinforced composite target drill with straight sword type blade |
| CN107717021A (en) * | 2017-10-31 | 2018-02-23 | 湖南科技大学 | Carbon fibre reinforced composite target drill with Circular Nose Cutting Edge blade |
| CN108247115A (en) * | 2018-02-09 | 2018-07-06 | 广西汽车集团有限公司 | A kind of combined knife tool |
| CN110253055A (en) * | 2019-06-11 | 2019-09-20 | 上海拓璞数控科技股份有限公司 | PCD suitable for processing carbon fibre composite bores ream one compound tool |
| CN111360301A (en) * | 2020-03-24 | 2020-07-03 | 上海拓璞数控科技股份有限公司 | Automatic hole-making dimple cutter suitable for weak rigidity equipment |
-
2016
- 2016-08-29 CN CN201620959872.5U patent/CN205967542U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107717020A (en) * | 2017-10-31 | 2018-02-23 | 湖南科技大学 | Carbon fibre reinforced composite target drill with straight sword type blade |
| CN107717021A (en) * | 2017-10-31 | 2018-02-23 | 湖南科技大学 | Carbon fibre reinforced composite target drill with Circular Nose Cutting Edge blade |
| CN108247115A (en) * | 2018-02-09 | 2018-07-06 | 广西汽车集团有限公司 | A kind of combined knife tool |
| CN110253055A (en) * | 2019-06-11 | 2019-09-20 | 上海拓璞数控科技股份有限公司 | PCD suitable for processing carbon fibre composite bores ream one compound tool |
| CN111360301A (en) * | 2020-03-24 | 2020-07-03 | 上海拓璞数控科技股份有限公司 | Automatic hole-making dimple cutter suitable for weak rigidity equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |