CN202894488U - Stratified cutting polycrystalline diamond (PCD) reamer - Google Patents
Stratified cutting polycrystalline diamond (PCD) reamer Download PDFInfo
- Publication number
- CN202894488U CN202894488U CN 201220618980 CN201220618980U CN202894488U CN 202894488 U CN202894488 U CN 202894488U CN 201220618980 CN201220618980 CN 201220618980 CN 201220618980 U CN201220618980 U CN 201220618980U CN 202894488 U CN202894488 U CN 202894488U
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- cutting
- cutter hub
- pcd
- cutter
- hole
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a stratified cutting polycrystalline diamond (PCD) reamer comprising a cutter body, wherein the cutter is sequentially provided with at least two sections of cutting portions from front to back, radiuses of the cutting portions are gradually larger, each cutting portion is provided with two cutting blades which are made of PCD and welded on the cutter body, and an included angle between vertical lines between each cutting blade and the axis of the cutter body is less than 180 degrees. Due to the fact that each cutting portion is provided with two cutting blades made of PCD and two sets of the cutting blades of different turning radiuses are arranged, stratified cutting is realized. Two cutting blades of the same turning radius are arranged on an asymmetric mode, and namely, the two cutting blades form a small included angle on the radial direction. By means of the structure, the vibration stripe phenomenon during machining does not exist, service life of a cutter is prolonged, roughness of the cutter is improved, use cost of the cutter is reduced, and production benefits of manufacturers are accelerated.
Description
Technical field
The utility model belongs to machining manufacturing technology field, relates in particular to a kind of layered cutting PCD reamer.
Background technology
At present, the employed reamer of existing layered cutting comprises cutter hub, cutter hub is provided with the cutting tip that at least two sections radius of gyration increase one by one from front to back successively, the cutting tip of the reamer that wherein has all is single cutting-edge, working durability is short, and the cutting tip of the reamer that has is symmetrically arranged two cutting edges, can increase the service life like this, but because two cutting edge symmetries can make processed hole inwall the shake line occur, affect product quality.
The utility model content
The utility model is in order to solve weak point of the prior art, and a kind of long service life, layered cutting PCD reamer that machining accuracy is high are provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: layered cutting PCD reamer, comprise cutter hub, cutter hub is provided with the cutting tip that at least two sections radius of gyration increase one by one from front to back successively, described each cutting tip is the cutting edge that is welded on two PCD materials on the cutter hub, two cutting edges respectively and the angle of the vertical join line between the cutter hub axis less than 180 °.
Described cutter hub rear end offers screwed hole along center line, and the screwed hole internal thread is connected with an adjusting bolt.
Described cutter hub and adjusting bolt are provided with cold hole in from back to front along center line, and front portion, interior cold hole is provided with sealing block, and two sections cutting tips respectively and offer a connecting hole between the interior cold hole.
Described cutter hub posterior face axially offers the keyway for the location.
Adopt technique scheme, cutting tip is the cutting edge of two PCD materials, two groups of cutting edges of the different radius of gyration, realized layered cutting, asymmetric setting between two cutting edges of the same radius of gyration, namely two cutting edges become a little angle diametrically, chatter phenomena no longer appears in this structure work in-process, and improved cutter life and roughness, and reduced the cutter use cost, accelerated the productivity effect of producer.Adjusting bolt and keyway are used for cutter hub is installed, and keyway plays the effect of location, and adjusting bolt is used for adjusting the length of cutter hub.Set up interior cold hole and be used for passing into cooling water, in process, play good cooling effect.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that enlarged drawing is looked on the left side of Fig. 1.
The specific embodiment
As depicted in figs. 1 and 2, layered cutting PCD reamer of the present utility model, comprise cutter hub 1, cutter hub 1 is provided with the cutting tip that two sections radius of gyration increase one by one from front to back successively, each cutting tip be welded on two PCD materials on the cutter hub 12, two cutting edges 2 of cutting edge respectively and the angle of the vertical join line between cutter hub 1 axis less than 180 °.Cutter hub 1 rear end offers screwed hole 3 along center line, and screwed hole 3 internal threads are connected with an adjusting bolt 4.Cutter hub 1 and adjusting bolt 4 are provided with cold hole 5 in from back to front along center line, and 5 front portions, interior cold hole are provided with 8, two sections cutting tips of sealing block respectively and offer a connecting hole 6 between the interior cold hole 5.Through hole is convenient to be processed as in interior cold hole 5, and cold hole 5 in sealing block 8 is used for stopping up makes cooling water flow to the cutting portion office through connecting hole 6.Cutter hub 1 posterior face axially offers the keyway 7 for the location.
Because cutting tip is the cutting edge 2 of two PCD materials, two groups of cutting edges 2 of the different radius of gyration, realized layered cutting, asymmetric setting between two cutting edges 2 of the same radius of gyration, namely two cutting edges 2 become a little angle diametrically, and chatter phenomena no longer appears in this structure work in-process, and have improved cutter life and roughness, reduce the cutter use cost, accelerated the productivity effect of producer.Adjusting bolt 4 and keyway 7 are used for cutter hub 1 is installed, and keyway 7 plays the effect of location, and adjusting bolt 4 is used for adjusting the length of cutter hub 1.Set up interior cold hole 5 and be used for passing into cooling water, in process, play good cooling effect.
Claims (4)
1. layered cutting PCD reamer, comprise cutter hub, cutter hub is provided with the cutting tip that at least two sections radius of gyration increase one by one from front to back successively, it is characterized in that: described each cutting tip is the cutting edge that is welded on two PCD materials on the cutter hub, two cutting edges respectively and the angle of the vertical join line between the cutter hub axis less than 180 °.
2. layered cutting PCD reamer according to claim 1 comprises the handle of a knife body, it is characterized in that: described cutter hub rear end offers screwed hole along center line, and the screwed hole internal thread is connected with an adjusting bolt.
3. layered cutting PCD reamer according to claim 2, comprise the handle of a knife body, it is characterized in that: described cutter hub and adjusting bolt are provided with cold hole in from back to front along center line, and front portion, interior cold hole is provided with sealing block, and two sections cutting tips respectively and offer a connecting hole between the interior cold hole.
4. layered cutting PCD reamer according to claim 1 and 2 comprises the handle of a knife body, it is characterized in that: described cutter hub posterior face axially offers the keyway for the location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618980 CN202894488U (en) | 2012-11-21 | 2012-11-21 | Stratified cutting polycrystalline diamond (PCD) reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220618980 CN202894488U (en) | 2012-11-21 | 2012-11-21 | Stratified cutting polycrystalline diamond (PCD) reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202894488U true CN202894488U (en) | 2013-04-24 |
Family
ID=48115205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220618980 Expired - Lifetime CN202894488U (en) | 2012-11-21 | 2012-11-21 | Stratified cutting polycrystalline diamond (PCD) reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202894488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974893A (en) * | 2012-11-21 | 2013-03-20 | 郑州市钻石精密制造有限公司 | Layered cutting PCD (Poly Crystal Diamond) reamer |
| CN108436118A (en) * | 2018-06-02 | 2018-08-24 | 山东富祥动力股份有限公司 | A kind of ladder aperture knife tool |
-
2012
- 2012-11-21 CN CN 201220618980 patent/CN202894488U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974893A (en) * | 2012-11-21 | 2013-03-20 | 郑州市钻石精密制造有限公司 | Layered cutting PCD (Poly Crystal Diamond) reamer |
| CN108436118A (en) * | 2018-06-02 | 2018-08-24 | 山东富祥动力股份有限公司 | A kind of ladder aperture knife tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
| CX01 | Expiry of patent term |