CN103447558B - The floating boring tool of processing blind hole shape thin wall and deep hole part - Google Patents
The floating boring tool of processing blind hole shape thin wall and deep hole part Download PDFInfo
- Publication number
- CN103447558B CN103447558B CN201210179902.7A CN201210179902A CN103447558B CN 103447558 B CN103447558 B CN 103447558B CN 201210179902 A CN201210179902 A CN 201210179902A CN 103447558 B CN103447558 B CN 103447558B
- Authority
- CN
- China
- Prior art keywords
- boring tool
- floating boring
- floating
- boring
- hole
- 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.)
- Active
Links
Abstract
The present invention provides a kind of floating boring tool of processing blind hole shape thin wall and deep hole part, including floating boring tool bar, floating boring tool piece and screw, wherein, the floating boring tool piece is provided with through-hole, the screw is located in the through-hole is installed on the floating boring tool bar by the floating boring tool piece, flying height is formed between the through-hole and the screw, the cylinder of the floating boring tool bar is provided with oil groove, and the oil groove is for installing coolant pipe.The present invention flexibly uses floating boring technology and principle, substantially increases the processing technology of product, stabilizes part processing quality and improves production efficiency.
Description
Technical field
It is especially a kind of for processing blind hole shape thin wall and deep hole part and can one the present invention relates to a kind of part cutting apparatus
The secondary cutting apparatus for completing endoporus and bottom surface processing, and in particular, to the floating boring tool of processing blind hole shape thin wall and deep hole part.
Background technology
Lid is a kind of major part in spring thrust mechanism on China's new generation's carrier rocket radome fairing, and such as Fig. 1 is used
Required big stroke, high thrust, structure length overlength when radome fairing is opened.For rocket in flight course radome fairing energy
It is no properly separate it is most important.Such part uses 7A09T6 materials, modular design size overall length to be for up to 511mm, internal diameter ruler
It is very little （Technological requirement）× 5, M70 × 15-6H withConcentricity 0.1, outer diameter φ 66 ×
466, and0.05 and R2 is required to connect with the verticality of baseplane, primary structure wall thickness 3mm, so the processing of part,
The processing of especially baseplane is very difficult.
Cap bore is processed compared with outer circle and end face processing, and internal bore boring easy tos produce various failures, in process
Cutting edge can not visually be observed inside hole, and because hole depth and diameter ratio L/d>8, inconvenience is brought to operator, no
Sharp factor is especially prominent.
Deep hole boring main difficulty is declined and cutter tipping, folding by the bad caused machined surface quality of flutter and chip removal
Break.Wherein flutter is chief reason.The generation of flutter is excessive because of cutter extension elongation and knife bar diameter ratio, and cutter is rigid
Property it is insufficient.Plain bore is cut by a cutting edge, i.e., so-called single-point cutting, therefore, by the shadow of flexing and twisting property
Sound is fairly obvious, easily induces flutter.Conventional inner diameter turning sizeWhen, select the self-control of φ 28 × 800
Knife bar, it is 515mm that actual installation, which effectively stretches out processing length, and installs the clump weight of 5Kg in knife bar end, by increasing knife bar
With weight and the force balance point of lathe cutter saddle system, the flutter that knife bar generates in cutting is prevented with maximum possible, but through cutting
Existing chatter phenomenon of cutting hair is not apparent from improvement：Hole in piece part baseplane size is larger, single side 18mm, and is R2 intersections, and cutting resistance is bright
It is aobvious to increase；Part is long and is blind hole shape, causes the poor rigidity of knife bar, work in-process to generate stronger flutter, piece surface occurs
Apparent spiral lamination；Part wall is thin, and Tool in Cutting resistance increases, and cutter generates in aperture entrance moment and allows knife, size pole
It is not easily controlled；Part cutting process is long, generates heat, forms taper and deformation.Therefore, the dimensional accuracy of part and surface are thick
Rugosity is difficult to ensure, processing is made to become very difficult.
Internal diameter size and baseplane processing whether smoothly or can reach technology requirement, the follow-up whole of product will be directly affected
Body assembling quality.It since the part material is 7A09T6, easily deforms, and is blind hole shape thin wall and deep hole part, dimensional accuracy and table
Surface roughness requires height, and processing is extremely difficult, affects the research plan of product to a certain extent.
It is therefore desirable to a set of cutting apparatus for the processing of blind hole shape thin wall and deep hole accessory turning of Development and design.By dividing
The technological difficulties for analysing its processing, design effective floating boring tool, thus in the case where lacking deep hole machining special equipment,
The knife bar flutter that part is also easy to produce in turning process is solved using floating boring method, is bored caused by deep hole end face and deep hole
The unfavorable factors such as degree, obtain practicable working process parameter.
Invention content
For the defects in the prior art, the object of the present invention is to provide a kind of the floating of processing blind hole shape thin wall and deep hole part
Dynamic boring cutter.
According to an aspect of the present invention, a kind of floating boring tool of processing blind hole shape thin wall and deep hole part is provided, including floating
Dynamic boring cutter bar, floating boring tool piece and screw, wherein the floating boring tool piece is provided with through-hole, and the screw is located at described logical
The floating boring tool piece is installed on the floating boring tool bar in hole, flying height is formed between the through-hole and the screw,
The cylinder of the floating boring tool bar is provided with oil groove, and the oil groove is for installing coolant pipe.The oil groove in floating boring tool roofbolt face
Structure so that coolant pipe follows floating boring tool bar, coolant liquid to be fully cooled cutter always always in entire workpiece Boring Process
Cutting parts achieve the effect that be fully cooled.Floating boring tool piece and the screw hole of the top groove center M4 of floating boring tool bar pass through spiral shell
Nail connection so that boring completes floating boring tool piece and follows the convenient and safe removal blind hole shape thin wall and deep hole part of floating boring tool bar, no
Destroy bore area quality.
Preferably, the floating boring tool piece includes the cutting edge of boring endoporus and the cutting edge of boring bottom surface, the boring
The cutting edge of the cutting edge and boring bottom surface of cutting endoporus smoothly transits connection.Meet endoporus, bottom surface, root R are processed at one time.
Preferably, the cutting edge of boring endoporus is provided with 15 ° of inclined-planes in cutting width direction.
Preferably, the cutting edge of boring bottom surface opens slot at one at two among the cutting edge of bottom surface, and through-hole is provided among slot.
Preferably, the width of slot is less than part bottom surface aperture.
Preferably, the cutting angle of cutting edge face of floating boring tool piece is globoidal structure.Keep cutting edge sharp, and keeps chip removal logical
Freely.
Preferably, cutting angle of cutting edge is designed as 10 °, and relief angle is 15 °.
Improved boring cutter system flexibly uses floating boring technology and principle, substantially increases the processing technology of product
Property, it stabilizes part processing quality and improves production efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of typical part；
Fig. 2 is the structural schematic diagram of traditional floating boring tool piece before improving；
Fig. 3 is the structural schematic diagram of traditional floating boring tool bar before improving；
Fig. 4 is the structural schematic diagram according to floating boring tool piece after improvement provided by the invention；
Fig. 5 is the structural schematic diagram according to floating boring tool bar after improvement provided by the invention；
Fig. 6 is the structural schematic diagram according to improved boring cutter system provided by the invention.
Specific implementation mode
Illustrate the defect of conventional float boring cutter in conjunction with Fig. 2 and Fig. 3.It is embedded if Fig. 2, Fig. 3 conventional float boring cutter are in processing
It is provided on the knife bar of rectangular opening, cutter hub can be moved freely radially in the square hole of knife bar, and during the cutting process, cutter hub is automatically fixed
The heart, cutting force caused by the cutting edge by both sides balance its position, eliminate that knife bar vibrates and to compensate machine tool chief axis inclined
Influence caused by difference makes dimensionally stable, efficiency improve, ensures surface roughness.But when general floating boring tool cutting, blade dress
It is clipped in 5~8mm behind knife rod head end face, is mainly used for processing through-hole or smaller stepped hole, if pressing traditionally shaped floating boring
Knife is cut, and knife bar first touches hole bottom face so that bottom hole can not process, and endoporus length dimension can not ensure, due to hole depth, cut
It cuts cooling problem not also to be resolved, thin-walled parts deformation caused by cutting heat cannot be controlled effectively, therefore need to be to conventional float
Boring cutter structure and blade geometric dimension are redesigned.
The present invention improves conventional float boring cutter.Since this part contains blind hole shape deep hole, cutter and hole when cutting
Bottom face contacts, and keeps cutting edge sharp again, while floating blade can be made smoothly to exit again after requiring processing, therefore the present invention
A kind of practicable new floating boring tool for meeting this part processing request is devised on the basis of conventional float boring cutter,
Tool dimension, geometric angle and knife bar shape are as shown in Figure 4, Figure 5.Improved floating boring tool includes floating boring tool bar 1, floats
Boring blade 2, screw 3.As shown in figure 5, opening the slot of deep 11mm, width 11.5mm, the center M4 of slot at the top of floating boring tool bar 1
Screw hole, and open the oil groove of wide 6mm in the cylinder of floating boring tool bar 1.As shown in figure 4, the design of floating boring tool piece 2 is containing two kinds of cuttings
Sword, a kind of cutting edge for boring endoporus design 15 ° of inclined-planes and reach reduction for reducing cutting width and cut in cutting width direction
Cut the effect of power.A kind of cutting edge for boring bottom surface opens depth 3mm at one at two, wide is slightly less than zero among the cutting edge of bottom surface
The slot in part bottom surface aperture, slot centre systemThrough-hole.Cutting angle of cutting edge is designed as 10 °, and relief angle is 15 °, is set on 10 ° of faces of anterior angle
Meter cambered surface keeps cutting edge sharp, and keeps chip removal unobstructed.Two kinds of cutting edges are smoothly transitted two kinds of cutting edges connection by R2.
Floating boring tool bar 1 is installed on tail stock, and floating boring tool piece 2 is installed on floating boring tool bar 1 by screw 3, floats
On boring blade 2Through-hole and M4 screws 3 formed and meet the flying height that cutting requires.Floating boring tool bar 1 is due to column after improvement
It is provided with oil groove on face, part installs oil pipe on oil groove when processing, oil pipe shifting synchronous with floating boring tool bar in part process
It is dynamic, ensure that coolant liquid can be fully cooled cutting edge always.When boring endoporus, the cambered surface design on endoporus cutting angle of cutting edge face makes
Cutting edge is sharp, and forms the sheet chip for being easy to chip removal, keeps chip removal unobstructed.At 2 liang of floating boring tool piece in the cutting edge of bottom surface
Between depth 3mm, width be slightly less than the slot in part bottom surface aperture so that boring cutter system smoothly reaches and is cut bottom surface, and bottom surface is complete
Boring.Floating boring tool piece 2 reaches endoporus bottom, by bottom cutting edge and two kinds of cutting edge mistakes while meeting cutting endoporus
R is crossed to carry out the boring of bottom surface and form bottom surface root R.Boring is completed, and floating boring tool piece 2 is followed floating boring tool by screw 3
Bar 1 removes workpiece.
Claims (1)
1. a kind of floating boring tool of processing blind hole shape thin wall and deep hole part, which is characterized in that including floating boring tool bar (1), float
Boring blade (2) and screw (3), wherein the floating boring tool piece (2) is provided with through-hole, and the screw (3) is located at described logical
The floating boring tool piece (2) is installed on the floating boring tool bar (1) in hole, is formed between the through-hole and the screw (3)
The cylinder of flying height, the floating boring tool bar (1) is provided with oil groove, and the oil groove is for installing coolant pipe；
The floating boring tool piece includes that the cutting edge of boring endoporus and the cutting edge of boring bottom surface, the boring endoporus are cut
The cutting edge for cutting sword and boring bottom surface smoothly transits connection；
The cutting edge of boring endoporus is provided with 15 ° of inclined-planes in cutting width direction；
The cutting edge of boring bottom surface opens slot at one at two among the cutting edge of bottom surface, and through-hole is provided among slot；
The width of slot is less than part bottom surface aperture；
The cutting angle of cutting edge face of floating boring tool piece is globoidal structure；
Cutting angle of cutting edge is designed as 10 °, and relief angle is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179902.7A CN103447558B (en) | 2012-06-01 | 2012-06-01 | The floating boring tool of processing blind hole shape thin wall and deep hole part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179902.7A CN103447558B (en) | 2012-06-01 | 2012-06-01 | The floating boring tool of processing blind hole shape thin wall and deep hole part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103447558A CN103447558A (en) | 2013-12-18 |
| CN103447558B true CN103447558B (en) | 2018-08-03 |
Family
ID=49730616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210179902.7A Active CN103447558B (en) | 2012-06-01 | 2012-06-01 | The floating boring tool of processing blind hole shape thin wall and deep hole part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103447558B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934487A (en) * | 2014-04-23 | 2014-07-23 | 哈尔滨汽轮机厂有限责任公司 | Boring tool used for machining deep holes of turbine sleeves and deep hole machining method |
| CN104190965A (en) * | 2014-07-30 | 2014-12-10 | 常州西利合金工具有限公司 | High-precision through hole reaming tool |
| CN105171001A (en) * | 2015-09-22 | 2015-12-23 | 武汉重工铸锻有限责任公司 | Machining device and machining method of high-hardness deep blind hole special-shaped curved surface |
| CN106624002B (en) * | 2016-12-06 | 2018-10-26 | 株洲钻石切削刀具股份有限公司 | A kind of antidetonation cutting tool for boring |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB167401A (en) * | 1920-09-04 | 1921-08-11 | Arthur Harold Lloyd | Improvements in reamers |
| CN2152620Y (en) * | 1993-04-10 | 1994-01-12 | 蒋林祥 | Solid floating finish tool |
| CN1810424A (en) * | 2005-12-09 | 2006-08-02 | 钮长宏 | Type-SHC turnable double-edge fine boring cutter for radial trimming |
| CN201070678Y (en) * | 2007-06-27 | 2008-06-11 | 扬州大学 | Deep hole combined boring tool with support vibration absorber |
| CN201098741Y (en) * | 2007-09-13 | 2008-08-13 | 陈硕 | Dimension adjustable floating boring tool |
| CN202045393U (en) * | 2011-03-09 | 2011-11-23 | 上海航天设备制造总厂 | Cutter for machining high-precision small planes |
-
2012
- 2012-06-01 CN CN201210179902.7A patent/CN103447558B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103447558A (en) | 2013-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103447558B (en) | The floating boring tool of processing blind hole shape thin wall and deep hole part | |
| CN107008952B (en) | Laminated sheet hole-making cutter with taper drill and countersink chip breaking structure | |
| CN201596802U (en) | Multipurpose chamfering device | |
| CN202539643U (en) | Combined drilling and reaming tool special for machining titanium alloy | |
| CN102794486A (en) | Compound tool applicable to high-speed and accurate holing on aircraft panel | |
| CN109262033A (en) | Run through the processing method and cutter of bolt hole for diesel engine stand | |
| CN105921798A (en) | Combined drilling tool for drilling and chamfering of double surfaces of hole | |
| CN103612067B (en) | Aluminium alloy and laminated titanium-alloy interlayer semi-closed structure high accuracy ream processing method | |
| CN211387046U (en) | Step three-edge forming reamer | |
| CN104858471A (en) | Method for machining cylinder holes in diesel engine body | |
| CN204975376U (en) | Compound tool | |
| CN105345402A (en) | Anti-deformation machining method for milling round hole and lace of casing part | |
| CN201537705U (en) | Compound cutting tool | |
| CN209902318U (en) | Aluminum alloy hub bolt hole processing drill bit | |
| CN204770958U (en) | Tapering reamer | |
| CN204893064U (en) | Key -way tool | |
| CN202845876U (en) | Hole-forming composite drill boring cutter | |
| CN210059841U (en) | Adjustable precise light boring cutter | |
| CN209754118U (en) | Positive and negative chamfer combined cutting tool | |
| CN208680674U (en) | A kind of head-changeable reamer | |
| CN203109358U (en) | Reamer tool for machining conduit bezel | |
| CN206326204U (en) | A kind of high reamer of crudy | |
| CN206484043U (en) | A kind of bottom plate processing composite boring cutters | |
| CN206882940U (en) | Internal thread machining cutter | |
| CN207508305U (en) | A kind of hole machined compound tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |