CN102198521A - Boring blade for machining conduit hole - Google Patents
Boring blade for machining conduit hole Download PDFInfo
- Publication number
- CN102198521A CN102198521A CN 201110088112 CN201110088112A CN102198521A CN 102198521 A CN102198521 A CN 102198521A CN 201110088112 CN201110088112 CN 201110088112 CN 201110088112 A CN201110088112 A CN 201110088112A CN 102198521 A CN102198521 A CN 102198521A
- Authority
- CN
- China
- Prior art keywords
- boring cutter
- blade
- cutting tip
- cutter sheet
- machining
- 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.)
- Granted
Links
- 238000003754 machining Methods 0.000 title abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 30
- 239000010432 diamond Substances 0.000 claims abstract description 8
- 230000004907 flux Effects 0.000 claims abstract description 5
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 7
- 241000826860 Trapezium Species 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000956 alloy Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
Images
Abstract
The invention provides a boring blade for machining a conduit hole. The longitudinal section of the boring blade is a right-angled trapezoid; the lower bottom surface of a boring blade body is welded with a cutting part of which the longitudinal section is a right-angled trapezoid in a butt way via a welding flux; the middle of the bottom surface of the cutting part is provided with a rectangular location groove; the bottom of the location groove has a slope structure, and the section of the bottom of the location groove adjacent to the cutting part has a structure that an acute angle side is inclined inwards; the cutting part has an integrated structure and is made of polycrystalline diamonds; and the location groove is machined by laser. By the invention, the machining surface roughness and the machining precision of the blade are improved, the product quality is greatly improved, the service life of the boring blade is prolonged, and the cost is effectively reduced.
Description
Technical field
The present invention relates to the Machining Technology field, particularly a kind of boring cutter sheet of processing guide hole.
Background technology
The boring cutter sheet is widely used in the guide hole of cylinder cover of automobile engine, the process tool of guide hole adopts multiple-cutting-edge combined type (blade machine folder, welding-on combination) structure, with hinge, boring, squeeze and cut alternative grinding, guide hole belongs to deep hole machining, to the requirement of dimensional accuracy and surface roughness than higher.In the processed and applied of engine valve guide hole, accurate boring cutter machining accuracy, surface quality all are better than the processing of rifle hinge.By solder flux welding-on cutting tip, cutting tip mainly is the composite sheet of polycrystalline diamond (or polycrystalline cubic boron nitride) on the boring cutter sheet, and its composite sheet is that polycrystalline diamond layer (or polycrystalline cubic boron nitride layer) and hard alloy layer form through the HTHP compacting.When at present pressing plate compresses blade, does not radially have location, can't compress blade well, can cause the boring cutter sheet radially to move and cause cutting not enough or cut too much.
And traditional guide hole boring cutter sheet is whole hard alloy or PCD welding blade, wherein the carbide alloy Material Processing be limited in scope and machining accuracy and cutting speed too low, the service life of carbide alloy is low, working (machining) efficiency is low.The PCD welding blade can be realized high-speed, high precision processing, but can be owing to the unstable insufficient strength that causes the PCD cutting of solder technology, poor stability, and reduce service life.
Summary of the invention
The invention provides a kind of boring cutter sheet of processing guide hole, can prevent effectively that the boring cutter sheet from radially moving, improve the machined surface roughness and the machining accuracy of blade, prolong boring cutter sheet service life.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: the boring cutter sheet of processing guide hole, described boring cutter sheet longitudinal section is a right-angled trapezium, it is the cutting tip of right-angled trapezium that there is the longitudinal section at the bottom surface place of boring cutter sheet body by solder flux butt joint welding-on, cutting tip is that the material of monolithic construction and employing is a polycrystalline diamond, middle part, cutting tip bottom surface is provided with the locating slot of rectangle, and the locating slot bottom is being that acute side slopes inwardly near the cutting tip cross section bottom ramp structure and locating slot.
Described cutting tip side is provided with 7 ° relief angle.
Described locating slot adopts Laser Processing to form.
The present invention improves the machined surface roughness and the machining accuracy of blade, has improved product quality greatly, prolongs boring cutter sheet service life, and effectively reduces cost.Cutting tip has characteristics such as hardness height, compression strength height, thermal conductivity and wearability are good, but high-speed cutting obtains very high manufacturing accuracy working (machining) efficiency.The locating slot structure can effectively improve fixing fastness, can process ultraprecise endoporus precision and excellent surface roughness.Blade adopts the indexable insert tip, throw away tip of Laser Processing and precise finiss, and the blade two ends all are the machinable blades.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a vertical view of the present invention;
Fig. 3 is a right view of the present invention;
Fig. 4 is the A-A cutaway view of Fig. 1.
The specific embodiment
Embodiment: shown in Fig. 1-4, the boring cutter sheet of processing guide hole, boring cutter sheet longitudinal section is a right-angled trapezium, and it is the cutting tip 2 of right-angled trapezium that there is the longitudinal section at the bottom surface place of boring cutter sheet body by solder flux butt joint welding-on, and cutting tip 2 is a polycrystalline diamond for the material of monolithic construction and employing.Middle part, cutting tip 2 bottom surfaces is provided with the locating slot 3 of rectangle, and locating slot 3 adopts Laser Processing to form, and locating slot 3 bottoms are that ramp structure and locating slot bottom are being that acute side slopes inwardly near cutting tip 2 cross sections.It is 7 ° relief angle that cutting tip 2 sides are provided with α.
Blade material PCD(polycrystalline diamond) hard high-wearing feature, difficult processing, grinding efficiency is too low, but adopts Laser Processing high efficiency, high accuracy processing, and Laser Processing can reduce the processing cost input.Groove above the blade is a groove not, and allowance is left on both sides, and groove is not in order to cooperate pressing plate to compress blade, further to compress blade, can prevent that blade from moving radially and causing the not enough or cutting of cutting too much.Do not hold because the groove processing dimension is difficult, both sides allowance size is little, and the difficulty of processing height is so adopt Laser Processing.Groove is not the contact portion that is used for fixturing blade and compresses, and adopts laser processing technology to guarantee the not surface roughness and the dimensional accuracy of groove.The raising of precision is beneficial to convenient mounting and clamping, blade and pressing plate is fitted tightly fully compress, and avoids causing accessory size error or Surface Machining precision to reduce because of the blade clamping is unstable.
Claims (3)
1. process the boring cutter sheet of guide hole, it is characterized in that: described boring cutter sheet longitudinal section is a right-angled trapezium, it is the cutting tip of right-angled trapezium that there is the longitudinal section at the bottom surface place of boring cutter sheet body by solder flux butt joint welding-on, cutting tip is that the material of monolithic construction and employing is a polycrystalline diamond, middle part, cutting tip bottom surface is provided with the locating slot of rectangle, and the locating slot bottom is being that acute side slopes inwardly near the cutting tip cross section bottom ramp structure and locating slot.
2. the boring cutter sheet of processing guide hole according to claim 1 is characterized in that: described cutting tip side is provided with 7 ° relief angle.
3. the boring cutter sheet of processing guide hole according to claim 1 and 2 is characterized in that: described locating slot adopts Laser Processing to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110088112 CN102198521B (en) | 2011-04-08 | 2011-04-08 | Boring blade for machining conduit hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110088112 CN102198521B (en) | 2011-04-08 | 2011-04-08 | Boring blade for machining conduit hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102198521A true CN102198521A (en) | 2011-09-28 |
| CN102198521B CN102198521B (en) | 2013-04-10 |
Family
ID=44659657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110088112 Expired - Fee Related CN102198521B (en) | 2011-04-08 | 2011-04-08 | Boring blade for machining conduit hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102198521B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245937A (en) * | 1978-09-28 | 1981-01-20 | Kennametal Inc. | Clamping mechanism for cutting insert |
| DE202004012955U1 (en) * | 2004-08-18 | 2005-01-05 | Chang, Hsin-Tien | Drill tool, comprising disposable blade located in matching recess and adjusted with screw positioned behind |
| CN101337282A (en) * | 2008-08-12 | 2009-01-07 | 郑州市钻石精密制造有限公司 | Welding polycrystalline diamond boring cutter blade for processing valve guide basal-pore and guide-tube pore |
| CN201592261U (en) * | 2009-11-12 | 2010-09-29 | 郑州市钻石精密制造有限公司 | Precise boring cutter for processing conduit holes |
| CN201659296U (en) * | 2009-11-10 | 2010-12-01 | 天津市威斯曼光学仪器有限公司 | Splitting multi-stage multi-cutter spacing adjustable indexable boring cutter |
-
2011
- 2011-04-08 CN CN 201110088112 patent/CN102198521B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245937A (en) * | 1978-09-28 | 1981-01-20 | Kennametal Inc. | Clamping mechanism for cutting insert |
| DE202004012955U1 (en) * | 2004-08-18 | 2005-01-05 | Chang, Hsin-Tien | Drill tool, comprising disposable blade located in matching recess and adjusted with screw positioned behind |
| CN101337282A (en) * | 2008-08-12 | 2009-01-07 | 郑州市钻石精密制造有限公司 | Welding polycrystalline diamond boring cutter blade for processing valve guide basal-pore and guide-tube pore |
| CN201659296U (en) * | 2009-11-10 | 2010-12-01 | 天津市威斯曼光学仪器有限公司 | Splitting multi-stage multi-cutter spacing adjustable indexable boring cutter |
| CN201592261U (en) * | 2009-11-12 | 2010-09-29 | 郑州市钻石精密制造有限公司 | Precise boring cutter for processing conduit holes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102198521B (en) | 2013-04-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 |