CN203109356U - Reamer - Google Patents
Reamer Download PDFInfo
- Publication number
- CN203109356U CN203109356U CN 201320014622 CN201320014622U CN203109356U CN 203109356 U CN203109356 U CN 203109356U CN 201320014622 CN201320014622 CN 201320014622 CN 201320014622 U CN201320014622 U CN 201320014622U CN 203109356 U CN203109356 U CN 203109356U
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- CN
- China
- Prior art keywords
- reamer
- cutter hub
- workpiece
- internal
- processed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a reamer which comprises a reamer body made of a hard alloy. The front end of the reamer body is welded with a polycrystalline diamond (PCD) blade. A spiral chip groove is formed in the front portion of the reamer body. A spiral angle of the spiral chip groove is rotated in the right direction by 20 degrees. Two internal-cooled holes are formed in the reamer body in the axial direction of the reamer body in parallel. An opening at the front end of each internal-cooled hole is arranged in the spiral chip groove. An opening at the rear end of each internal-cooled hole is arranged at the rear end of the reamer body. The reamer is simple in structure and convenient to use. Due to the fact that a tool withdrawal groove is canceled, an arc of a workpiece can be processed integrally when the workpiece is processed, so that the defect that an arc of a workpiece cannot be processed integrally due to existence of the tool withdrawal groove is overcome. The spiral chip groove can discharge scraps quickly in the processing procedure. The arrangement of the two internal-cooled holes can avoid the phenomenon that temperature rise of the reamer is high in the processing procedure. By the adoption of the reamer, surface roughness of processed workpieces is better and arcs of the workpieces can be processed integrally.
Description
Technical field
The utility model relates to and belongs to the Machining Technology field, relates in particular to a kind of reamer for the processing rigid material.
Background technology
Existing reamer for the processing rigid material is solid carbide, for ease of making cutter, is provided with escape in the cutter front portion.Though escape has reduced the difficulty of making cutter, the existence of escape can make the workpiece that processes lose a part of circular arc.This type of cutter can't be broken away from the restriction of escape in the present prior art.
The utility model content
The purpose of this utility model is to provide a kind of can process the circular arc on the workpiece reamer complete and raising workpiece machining accuracy.
For achieving the above object, reamer of the present utility model comprises the cutter hub that carbide alloy is made, and the cutter hub front end is welded with the PCD blade, and the cutter hub front portion is provided with helical flute, and the helical angle of helical flute is dextrorotation 20 degree.
Be provided with cold hole in two along the cutter hub axially parallel in the described cutter hub, the front opening in cold hole is at the helical flute place in each, and the open rearward end in cold hole is in the cutter hub rear end in each.
Described PCD blade includes helical land, and the width of described helical land is 0.4 millimeter.
The utlity model has following advantage:
The utility model is simple in structure, and is easy to use.Owing to cancelled escape in the utility model, thereby can the processing of workpiece circular arc is complete during processing work, thereby the existence that overcomes in the past owing to escape makes the workpiece circular arc can't process complete defective.The setting of helical flute can be discharged chip rapidly in process.The setting in cold hole can be avoided the too high phenomenon of reamer temperature rise in the process in two.In a word, adopt structure of the present utility model after, the workpiece surface roughness of processing is better, can workpiece circular arc processing is complete.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1.
The specific embodiment
As shown in Figure 1, reamer of the present utility model comprises the cutter hub 1 that carbide alloy is made, the PCD(PCD that cutter hub 1 front end is welded with as cutting tip is polycrystalline diamond) blade 2, cutter hub 1 front portion is provided with helical flute 3, and the helical angle of helical flute 3 is dextrorotation 20 degree.Be provided with cold hole 4 in two along cutter hub 1 axially parallel in the described cutter hub 1, the front opening in cold hole 4 is at helical flute 3 places in each, and the open rearward end in cold hole 4 is in cutter hub 1 rear end in each.Described PCD blade 2 includes helical land 5, and the width L of described helical land 5 is 0.4 millimeter.
Use the advantage of PCD material: the hardness height; The thermal conductivity factor height is convenient to the cutter heat and is transmitted rapidly; Coefficient of friction is little, can significantly reduce Tool in Cutting power; Thermal coefficient of expansion is less, and the cutter thermal deformation is little, the machining accuracy height; Affinity is very little between cutter and non-ferrous metal nonmetallic materials, and the process smear metal is not on cutting tip.
Because the utility model structurally cancelled escape, thereby can the processing of workpiece circular arc is complete during processing work, thereby the existence that overcomes in the past owing to escape makes the workpiece circular arc can't process complete defective.The setting of helical flute 3 can be discharged chip rapidly in process.The setting in cold hole 4 can be avoided the too high phenomenon of reamer temperature rise in the process in two.In a word, adopt structure of the present utility model after, the workpiece surface roughness of processing is better, can workpiece circular arc processing is complete.
Present embodiment is not that shape of the present utility model, material, structure etc. are done any pro forma restriction; every foundation technical spirit of the present utility model all belongs to the protection domain of technical solutions of the utility model to any simple modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. reamer, it is characterized in that: comprise the cutter hub that carbide alloy is made, the cutter hub front end is welded with the PCD blade, and the cutter hub front portion is provided with helical flute, and the helical angle of helical flute is dextrorotation 20 degree.
2. reamer according to claim 1 is characterized in that: is provided with cold hole in two along the cutter hub axially parallel in the described cutter hub, the front opening in cold hole is at the helical flute place in each, and the open rearward end in cold hole is in the cutter hub rear end in each.
3. reamer according to claim 2, it is characterized in that: described PCD blade includes helical land, and the width of described helical land is 0.4 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014622 CN203109356U (en) | 2013-01-11 | 2013-01-11 | Reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320014622 CN203109356U (en) | 2013-01-11 | 2013-01-11 | Reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203109356U true CN203109356U (en) | 2013-08-07 |
Family
ID=48889732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320014622 Expired - Lifetime CN203109356U (en) | 2013-01-11 | 2013-01-11 | Reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203109356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270587A (en) * | 2015-05-14 | 2017-01-04 | 邵阳宝新硬质合金有限公司 | A kind of carbide tool |
-
2013
- 2013-01-11 CN CN 201320014622 patent/CN203109356U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270587A (en) * | 2015-05-14 | 2017-01-04 | 邵阳宝新硬质合金有限公司 | A kind of carbide 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |