CN104190964A - Boring cutter - Google Patents
Boring cutter Download PDFInfo
- Publication number
- CN104190964A CN104190964A CN201410370959.4A CN201410370959A CN104190964A CN 104190964 A CN104190964 A CN 104190964A CN 201410370959 A CN201410370959 A CN 201410370959A CN 104190964 A CN104190964 A CN 104190964A
- Authority
- CN
- China
- Prior art keywords
- boring cutter
- boring
- handle
- cutter
- 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.)
- Pending
Links
- 239000012809 cooling fluid Substances 0.000 claims description 15
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 238000003754 machining Methods 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/10—Cutting tools with special provision for cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/04—Overall shape
- B23B2200/049—Triangular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/32—Chip breaking or chip evacuation
- B23B2200/328—Details of chip evacuation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention relates to the technical field of machining, in particular to a boring cutter. The boring cutter comprises a cemented carbide cutter body. The cutter body comprises a boring cutter handle and a cutting portion. The cutting portion comprises a boring cutter rod in eccentric connection with the boring cutter handle and a boring cutter bit connected to the other end of the boring cutter rod. The boring cutter bit comprises a connecting portion connected with the boring cutter rod and a blade arranged under the connecting portion. A cross section of the blade is triangular. The total length of the cutting portion ranges from 2 mm to 2.5 mm, and the width of the cutting portion ranges 2 mm to 3 mm, so that the boring cutter facilitates machining of small inner holes, and the part surface quality can be improved.
Description
Technical field
The present invention relates to Machining Technology field, relate in particular 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 a kind of internal diameter turning process with cutter expanded hole or other circular contour, its range of application is generally from half roughing to fine finishining; But in boring cutter boring process, there is following shortcoming at present, 1) in the time need to processing small-sized endoporus, current boring cutter is difficult to boring, 2) deflection producing due to tangential force and radial load, can make boring cutter easily produce chatter, thereby the surface quality of destroying workpiece, makes surface of the work smoothness not reach requirement.
Summary of the invention
The object of this invention is to provide one and be convenient to process small-sized endoporus, and improve the boring cutter of surface quality of workpieces.
Technical scheme of the present invention 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 and the eccentric boring cutter bar being connected of boring cutter handle, and is connected to the cutter head of the boring cutter bar other end; Described cutter head comprises the connecting portion being connected with boring cutter bar, and is arranged on the blade of connecting portion below; Described blade cross section is triangular in shape; Described cutting portion overall length is 2mm-2.5mm, and cutting portion width is 2mm-3mm.
Described blade cross section is triangular in shape; Described boring cutter overall length is 8mm-10mm, and handle of a knife 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 deflection of milling process.
Described boring cutter handle right-hand member end is provided with chamfering.Thereby be convenient to the installation of boring cutter handle.
In described boring cutter handle, be provided with cooling fluid inlet hole, 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; In the described boring cutter handle surface of revolution, be provided with some through holes, 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 extending along boring cutter bar periphery; Described boring cutter bar is provided with the gathering sill that is communicated with groove and through hole.Reduce the temperature of cutter head.
The invention has the beneficial effects as follows: boring cutter of the present invention, the boring cutter bar deflection that adopts carbide alloy to make is very little, and prevent because deflection is excessive, and make boring cutter cause chatter, thus the surface quality of destruction workpiece; Stretched in endoporus and processed by blade, because blade cross section is triangular in shape, the radial rake that point of a knife and horizontal line form, plays guide effect to the metal fillings forming in boring processing; Due to cutting portion length and width all shorter, be convenient to stretch into boring in less endoporus, reduce the deflection of boring cutter simultaneously.
Brief description of the drawings
By the detailed description below in conjunction with accompanying drawing, the present invention is aforesaid will be become apparent with other object, feature and advantage.
Wherein: Fig. 1 is structural representation of the present invention;
Fig. 2 is this practical I portion enlarged drawing;
Fig. 3 is cooling fluid inlet hole structural representation of the present invention;
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 and the eccentric boring cutter bar 2 being connected of boring cutter handle, and is connected to the cutter head of the boring cutter bar other end; Described cutter head comprises the connecting portion 5 being connected with boring cutter bar, and is arranged on the blade 6 of connecting portion below, adopts the boring cutter bar that carbide alloy is made to reduce the deflection due to tangential force and radial load generation in Boring Process, thereby improves the surface quality of part; Described blade cross section is triangular in shape, and the radial rake that point of a knife and horizontal line form plays guide effect to the metal fillings forming 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 deflection of milling process, described blade cross section is triangular in shape; Described boring cutter overall length L4 is 8mm-10mm, and handle of a knife diameter D1 is 1mm-3mm.Due in the time that 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, and radial rake a1 is 8 °-12 °.The radial rake that point of a knife and horizontal line form leads to metal fillings between adopting 8 °-12 °, 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 blade bottom is provided with back taper 7.Owing to back taper being set at point of a knife, increase the intensity of point of a knife, make it be difficult for tipping, turned; Increase the service life of boring cutter.
Embodiment 5
On the basis of implementing 1, described cutter head outer surface is coated with four layers of coating, is followed successively by from inside to outside titanium nitride undercoating, titanium carbonitride coating, aluminum oxide coating layer, titanium carbide external coating; Four kinds of coatings utilize vapour deposition process to be coated on the outer surface of cutter head, have greatly strengthened 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, for when the boring, reduce the temperature of cutter head, in described boring cutter handle, be provided with cooling fluid inlet hole 9, 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; In the described boring cutter handle surface of revolution, be provided with some through holes 10, 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 extending along boring cutter bar periphery; Described boring cutter bar is provided with the gathering sill 12 that is communicated with groove and through hole.By cooling fluid inlet hole, cooling fluid is flowed in boring cutter handle, then flow out boring cutter handle along the through hole being communicated with cooling fluid inlet hole, then pass through gathering sill, finally flow in groove; Because groove left side is cutter head, and then cooling fluid will flow on cutter head, thus the temperature (it should be noted that gathering sill is positioned at the top of boring cutter bar) of reduction cutter head.
Embodiment 7
On the basis of embodiment 1, preferred, described boring cutter handle right-hand member end is provided with chamfering 7, thereby is convenient to the installation of boring cutter handle.
The present invention is not limited to described embodiment, and those skilled in the art, not departing from spirit of the present invention openly in scope, still can do some corrections or change, therefore the scope that the scope of the present invention 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 and the eccentric boring cutter bar being connected of boring cutter handle, and is connected to the cutter head of the boring cutter bar other end; Described cutter head comprises the connecting portion being connected with boring cutter bar, and is arranged on the blade of connecting portion below; Described blade cross section 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 cross section is triangular in shape; Described boring cutter overall length is 8mm-10mm, and handle of a knife 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, in described boring cutter handle, is provided with cooling fluid inlet hole, 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; In the described boring cutter handle surface of revolution, be provided with some through holes, 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 extending along boring cutter bar periphery; Described boring cutter bar is provided with the gathering sill that is communicated with groove and through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370959.4A CN104190964A (en) | 2014-07-30 | 2014-07-30 | Boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410370959.4A CN104190964A (en) | 2014-07-30 | 2014-07-30 | Boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104190964A true CN104190964A (en) | 2014-12-10 |
Family
ID=52076411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410370959.4A Pending CN104190964A (en) | 2014-07-30 | 2014-07-30 | Boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104190964A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858459A (en) * | 2015-06-02 | 2015-08-26 | 扬州正德超硬刀具有限公司 | Small-bore superhard boring tool |
| CN108568537A (en) * | 2018-07-05 | 2018-09-25 | 青岛破浪舟车船装备科技有限公司 | A kind of band prompt tone boring cutter |
| CN109848448A (en) * | 2019-03-13 | 2019-06-07 | 第一拖拉机股份有限公司 | A kind of cutting tool and processing method for backside processing of tractor shell |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61284303A (en) * | 1985-06-07 | 1986-12-15 | Hitachi Seiko Ltd | Tool rest |
| JPH10138011A (en) * | 1996-11-08 | 1998-05-26 | Hiroyoshi Sakae | Cutting tool and edge part tool for cutting machine tool and adjusting method for edge tip position of cutting tool and cutting part tool |
| CN2923122Y (en) * | 2006-01-27 | 2007-07-18 | 中国农业大学 | Close-fit interchangeable insert seat type tool holder |
| CN201969973U (en) * | 2011-03-11 | 2011-09-14 | 湖南博云东方粉末冶金有限公司 | Boring cutter integrating drilling, boring, internal thread cutting and air injection and chip removing |
| CN202571350U (en) * | 2012-03-28 | 2012-12-05 | 南京数控机床有限公司 | Deep hole boring transitional connection rod device with arc surface for clamping cutter |
| CN103028747A (en) * | 2012-11-27 | 2013-04-10 | 天长缸盖有限公司 | Superhard tungsten carbide deep hole shock-resistant inner-cooling adjustable boring tool |
| CN203409279U (en) * | 2013-07-16 | 2014-01-29 | 江苏纽泰格有限公司 | Boring cutter for foaming mold cavity machining tool |
| CN204094161U (en) * | 2014-07-30 | 2015-01-14 | 常州西利合金工具有限公司 | Boring cutter |
-
2014
- 2014-07-30 CN CN201410370959.4A patent/CN104190964A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61284303A (en) * | 1985-06-07 | 1986-12-15 | Hitachi Seiko Ltd | Tool rest |
| JPH10138011A (en) * | 1996-11-08 | 1998-05-26 | Hiroyoshi Sakae | Cutting tool and edge part tool for cutting machine tool and adjusting method for edge tip position of cutting tool and cutting part tool |
| CN2923122Y (en) * | 2006-01-27 | 2007-07-18 | 中国农业大学 | Close-fit interchangeable insert seat type tool holder |
| CN201969973U (en) * | 2011-03-11 | 2011-09-14 | 湖南博云东方粉末冶金有限公司 | Boring cutter integrating drilling, boring, internal thread cutting and air injection and chip removing |
| CN202571350U (en) * | 2012-03-28 | 2012-12-05 | 南京数控机床有限公司 | Deep hole boring transitional connection rod device with arc surface for clamping cutter |
| CN103028747A (en) * | 2012-11-27 | 2013-04-10 | 天长缸盖有限公司 | Superhard tungsten carbide deep hole shock-resistant inner-cooling adjustable boring tool |
| CN203409279U (en) * | 2013-07-16 | 2014-01-29 | 江苏纽泰格有限公司 | Boring cutter for foaming mold cavity machining tool |
| CN204094161U (en) * | 2014-07-30 | 2015-01-14 | 常州西利合金工具有限公司 | Boring cutter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858459A (en) * | 2015-06-02 | 2015-08-26 | 扬州正德超硬刀具有限公司 | Small-bore superhard boring tool |
| CN108568537A (en) * | 2018-07-05 | 2018-09-25 | 青岛破浪舟车船装备科技有限公司 | A kind of band prompt tone boring cutter |
| CN109848448A (en) * | 2019-03-13 | 2019-06-07 | 第一拖拉机股份有限公司 | A kind of cutting tool and processing method for backside processing of tractor shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |
|
| RJ01 | Rejection of invention patent application after publication |