CN204094161U - Boring cutter - Google Patents
Boring cutter Download PDFInfo
- Publication number
- CN204094161U CN204094161U CN201420427306.0U CN201420427306U CN204094161U CN 204094161 U CN204094161 U CN 204094161U CN 201420427306 U CN201420427306 U CN 201420427306U CN 204094161 U CN204094161 U CN 204094161U
- Authority
- CN
- China
- Prior art keywords
- boring cutter
- boring
- cutter
- handle
- cutting portion
- 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 - Fee Related
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model relates to Machining Technology field, particularly relates to boring cutter.By the cutter hub of carbide alloy; Described cutter hub comprises boring cutter handle, cutting portion; Described cutting portion comprises the boring cutter bar be connected with boring cutter handle bias, and is connected to the cutter head of the boring cutter bar other end; Described cutter head comprises the connecting portion be connected with boring cutter bar, and is arranged on the blade below connecting portion; Described blade sections is triangular in shape; Described cutting portion overall length is 2mm-2.5mm, and cutting portion width is 2mm-3mm, makes boring cutter be convenient to process small-sized endoporus, and improves surface quality of workpieces.
Description
Technical field
The utility model relates to Machining Technology field, particularly relates to boring cutter.
Background technology
At present, along with science and technology is more and more flourishing, to the part in machine applications, processing request is also more and more higher.And boring is the internal diameter turning process of a kind of cutter expanded hole or other circular contour, its range of application is generally from half roughing to fine finishining; But there is following shortcoming in boring cutter boring process at present, 1) when needing to process small-sized endoporus, current boring cutter is difficult to boring, 2) due to flexure that tangential force and radial load produce, boring cutter can be made easily to produce chatter, thus destroy the surface quality of workpiece, make surface of the work smoothness not reach requirement.
Utility model content
The purpose of this utility model is to provide one and is convenient to process small-sized endoporus, and improves the boring cutter of surface quality of workpieces.
The technical solution of the utility model is as follows:
Boring cutter, comprises the cutter hub of carbide alloy; Described cutter hub comprises boring cutter handle, cutting portion; Described cutting portion comprises the boring cutter bar be connected with boring cutter handle bias, and is connected to the cutter head of the boring cutter bar other end; Described cutter head comprises the connecting portion be connected with boring cutter bar, and is arranged on the blade below connecting portion; Described blade sections is triangular in shape; Described cutting portion overall length is 2mm-2.5mm, and cutting portion width is 2mm-3mm.
Described blade sections is triangular in shape; Described boring cutter overall length is 8mm-10mm, and shank diameter is 1mm-3mm.
The vertical right angle length of side of described boring blade is 0.2mm-0.3mm, and radial rake is 8 °-12 °.Reduce the flexure of milling process.
Described boring cutter handle right-hand member end is provided with chamfering.Thus be convenient to the installation of boring cutter handle.
Be provided with cooling fluid inlet hole in described boring cutter handle, boring cutter handle right-hand member is stretched out in described cooling fluid inlet hole one end, and the other end is positioned at boring cutter handle; Be provided with some through holes in the described boring cutter handle surface of revolution, boring cutter handle left end is stretched out in this through hole one end, and the other end is communicated with cooling fluid inlet hole; Described boring cutter bar and cutter head contact position are provided with the groove extended along boring cutter bar periphery; Described boring cutter bar is provided with the gathering sill being communicated with groove and through hole.Reduce the temperature of cutter head.
The beneficial effects of the utility model are: boring cutter of the present utility model, and the boring cutter bar deflection adopting carbide alloy to make is very little, prevents because deflection is excessive, and makes boring cutter cause chatter, thus destroy the surface quality of workpiece; Stretched in endoporus by blade and process, because blade sections is triangular in shape, the radial rake that point of a knife and horizontal line are formed, plays guide effect to the metal fillings formed in boring processing; Because cutting portion length and width are all shorter, be convenient to stretch into boring in less endoporus, reduce the deflection of boring cutter simultaneously.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the utility model will become apparent.
Wherein: Fig. 1 is the utility model structural representation;
Fig. 2 is this practical I portion enlarged drawing;
Fig. 3 is the utility model cooling fluid inlet hole structural representation;
In accompanying drawing, 1 is boring cutter handle, and 3 is boring cutter bar, and 4 is chamfering, and 5 is connecting portion, and 6 is blade, and 7 is back taper, and 8 is point of a knife, and 9 is cooling fluid inlet hole, and 10 is through hole, and 11 is groove, and 12 is gathering sill
Detailed description of the invention
Embodiment 1
Shown in Fig. 1-Fig. 2, boring cutter, comprises the cutter hub of carbide alloy; Described cutter hub comprises boring cutter handle 1, cutting portion; Described cutting portion comprises the boring cutter bar 2 be connected with boring cutter handle bias, and is connected to the cutter head of the boring cutter bar other end; Described cutter head comprises the connecting portion 5 be connected with boring cutter bar, and is arranged on the blade 6 below connecting portion, and the boring cutter bar adopting carbide alloy to make reduces due to the flexure that tangential force and radial load produce in Boring Process, thus improves the surface quality of part; Described blade sections is triangular in shape, the radial rake that point of a knife and horizontal line are formed, and plays guide effect to the metal fillings formed in boring processing; Described cutting portion overall length L1 is 2mm-2.5mm, and cutting portion width L2 is 2mm-3mm, and cutting portion length and width are all shorter, is convenient to stretch into boring in less endoporus, reduces the deflection of boring cutter simultaneously.
Embodiment 2
On the basis of previous embodiment, in order to reduce the flexure of milling process, described blade sections is triangular in shape; Described boring cutter overall length L4 is 8mm-10mm, and shank diameter D1 is 1mm-3mm.Due to when boring cutter bar diameter increases, its cross sectional moment of inertia also can increase, and deflection will reduce thereupon.
Embodiment 3
On the basis of previous embodiment, for the ease of chip removal, the vertical right angle length of side L3 of described boring blade is 0.2mm-0.3mm, radial rake a1 is 8 °-12 °.The radial rake that point of a knife and horizontal line are formed adopts between 8 °-12 °, leads to metal fillings, is conducive to the eliminating of metal fillings simultaneously; Preferred radial rake is 10 °, and chip removal is more best.
Embodiment 4
On the basis of embodiment 1, the point of a knife of described insert bottom is provided with back taper 7.Owing to arranging back taper at point of a knife, add the intensity of point of a knife, make its not easily tipping, turned; Add the service life of boring cutter.
Embodiment 5
On the basis of enforcement 1, described cutter head outer surface has four layers of coating, is followed successively by titanium nitride undercoating, titanium carbonitride coating, aluminum oxide coating layer, titanium carbide external coating from inside to outside; Four kinds of coatings utilize vapour deposition process to be coated on the outer surface of cutter head, greatly strengthen the wear-resistant of cutter head, corrosion-resistant, resistance to variable color, the performance such as high temperature resistant; And owing to being provided with four layers of coating, when after outermost coating abrasion, three layers of inner coating can stop wearing and tearing to be delivered on cutter head.
Embodiment 6
On the basis of embodiment 1, shown in Figure 3, in order to when boring, reduce the temperature of cutter head, be provided with cooling fluid inlet hole 9 in described boring cutter handle, boring cutter handle right-hand member is stretched out in described cooling fluid inlet hole one end, and the other end is positioned at boring cutter handle; Be provided with some through holes 10 in the described boring cutter handle surface of revolution, boring cutter handle left end is stretched out in this through hole one end, and the other end is communicated with cooling fluid inlet hole; Described boring cutter bar and cutter head contact position are provided with the groove 11 extended along boring cutter bar periphery; Described boring cutter bar is provided with the gathering sill 12 being communicated with groove and through hole.By cooling fluid inlet hole, cooling fluid is flowed in boring cutter handle, then flows out boring cutter handle along the through hole be communicated with cooling fluid inlet hole, then through gathering sill, finally flow in groove; Owing to being cutter head on the left of groove, and then cooling fluid will flow on cutter head, thus reduce the temperature (it should be noted that gathering sill is positioned at the top of boring cutter bar) of cutter head.
Embodiment 7
On the basis of embodiment 1, preferably, described boring cutter handle right-hand member end is provided with chamfering 7, thus is convenient to the installation of boring cutter handle.
The utility model is not limited to described embodiment; those skilled in the art is not departing from spirit of the present utility model namely openly in scope; still can do some revise or change, therefore the scope that rights protection scope of the present utility model limits with claims is as the criterion.
Claims (5)
1. boring cutter, is characterized in that, comprises the cutter hub of carbide alloy; Described cutter hub comprises boring cutter handle, cutting portion; Described cutting portion comprises the boring cutter bar be connected with boring cutter handle bias, and is connected to the cutter head of the boring cutter bar other end; Described cutter head comprises the connecting portion be connected with boring cutter bar, and is arranged on the blade below connecting portion; Described blade sections is triangular in shape; Described cutting portion overall length is 2mm-2.5mm, and cutting portion width is 2mm-3mm.
2. boring cutter according to claim 1, is characterized in that, described blade sections is triangular in shape; Described boring cutter overall length is 8mm-10mm, and shank diameter is 1mm-3mm.
3. boring cutter according to claim 1, is characterized in that, the vertical right angle length of side of described boring blade is 0.2mm-0.3mm, and radial rake is 8 °-12 °.
4. boring cutter according to claim 1, is characterized in that, described boring cutter handle right-hand member end is provided with chamfering.
5. boring cutter according to claim 1, is characterized in that, is provided with cooling fluid inlet hole in described boring cutter handle, and boring cutter handle right-hand member is stretched out in described cooling fluid inlet hole one end, and the other end is positioned at boring cutter handle; Be provided with some through holes in the described boring cutter handle surface of revolution, boring cutter handle left end is stretched out in this through hole one end, and the other end is communicated with cooling fluid inlet hole; Described boring cutter bar and cutter head contact position are provided with the groove extended along boring cutter bar periphery; Described boring cutter bar is provided with the gathering sill being communicated with groove and through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427306.0U CN204094161U (en) | 2014-07-30 | 2014-07-30 | Boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420427306.0U CN204094161U (en) | 2014-07-30 | 2014-07-30 | Boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204094161U true CN204094161U (en) | 2015-01-14 |
Family
ID=52262630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420427306.0U Expired - Fee Related CN204094161U (en) | 2014-07-30 | 2014-07-30 | Boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204094161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190964A (en) * | 2014-07-30 | 2014-12-10 | 常州西利合金工具有限公司 | Boring cutter |
-
2014
- 2014-07-30 CN CN201420427306.0U patent/CN204094161U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190964A (en) * | 2014-07-30 | 2014-12-10 | 常州西利合金工具有限公司 | Boring cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20170730 |