CN106238782B - Deep hole processing cutter with floating ring - Google Patents
Deep hole processing cutter with floating ring Download PDFInfo
- Publication number
- CN106238782B CN106238782B CN201610902686.2A CN201610902686A CN106238782B CN 106238782 B CN106238782 B CN 106238782B CN 201610902686 A CN201610902686 A CN 201610902686A CN 106238782 B CN106238782 B CN 106238782B
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- China
- Prior art keywords
- floating ring
- knife bar
- deep hole
- hole processing
- floating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention belongs to machine-building hole machined technical field, and in particular to the deep hole processing cutter with floating ring.It is enclosed on including cutter head, knife bar, floating ring, floating ring on knife bar, the external diameter of floating ring is less than deep hole internal diameter, and the internal diameter of floating ring is more than the external diameter of knife bar, and floating ring is located in sealing space, outage is machined with close to one end of cutter head in floating ring, has cutting fluid to be flowed out from outage.A part of cutting fluid flows through from the gap between floating ring outer surface and inner walls of deep holes, and another part cutting fluid flows through from the gap between floating ring inner surface and knife bar.Knife bar outer surface, floating ring inner surface, floating ring outer surface are smooth, cylindrical peripheral surface, or are machined with helicla flute in knife bar outer surface, floating ring inner surface, floating ring outer surface.Can also be in two or more tilting bush of floating ring inner surface setting.The present invention improves the vibration resistance of deep hole processing cutter, prevents the deflection of knife bar.
Description
Technical field
The invention belongs to machine-building hole machined technical field, and in particular to the deep hole processing cutter with floating ring.
Background technology
Deep hole machining major way has：First, cutter rotation, workpiece feeding；Second, workpiece rotation, tool feeding；The
Three, cutter and workpiece are all rotated, while cutter opposite piece is fed.Drill bit is broadly divided into by chip removal mode：Bta deep hole drilling
And outside chip removal deep hole drill.Deep hole machining general principle sees Wang Jun《Modern Deep-Hole Drilling Technology》With Wang Shiqing chief editors'《Deep hole
Process technology》.
It is difficult to observe working position and cutter situation during deep hole machining, knife bar length is big, easily glances off, and causes
Workpiece is scrapped, therefore deep hole machining is the difficult point of machining.Prevent with correcting drill bit, boring cutter and knife bar deflection, it is ensured that processing
Precision, it is the key subjects that needs solve, and far unsolved worldwide technological puzzle.
Existing deep hole working machine, existing deep hole machining BTA cutters are one of important technical backgrounds of the present invention.
It is cylinder outside presently used bta deep hole drilling drilling rod.Deep hole tools and knife bar application are directed in big country etc.
Multinomial patent, including a kind of drilling rod of rectifying a deviation, self correction deep hole processing system, it is a kind of with raised cutting element, it is a kind of tiltedly
The rearmounted deep hole processing cutter of face structure, self correction deep hole processing cutter system, good effect is achieved, but technology is without only
Border, it can also continue to carry out new research.
There is rifling (rifle) in gun barrel, rifling is the rifling in gun barrel, and bullet can be allowed to produce rotation, improves son
Stability after ejecting in-flight.
Floating collar bearing is one of effective ways for improving bearing vibration resistance and increasing bearing load carrying capacity.It is recommended for
Prevent from vibrating and reduce among the High speed Rotating Mechanical Devices to generate heat.
The content of the invention
The purpose of the present invention：Easily deviate ideal position this technical barrier for cutter during deep hole machining, propose
Associated solutions, the deflection of cutter is prevented and corrected, cutter is in correct position as far as possible, improve deep hole machining yield rate
And machining accuracy.
The present invention has used for reference the design principle of sliding bearing.There are fluid, deep hole between the endoporus and axle of hydrodynamic sliding bearing
There is fluid between machined hole wall and knife bar in processing, both have similarity.Former Soviet Union's Butterworth gram Lesinski (В o с к р e с
E н с к и й, B.A.), and Jie Yakefu (Д ь я к o в, В И) write works《Sliding bearing calculates and design》, Chen Jinbao
Above-mentioned works has been translated with Bao Chuanfu, has been published in National Defense Industry Press within 1986, middle figure classification number TH133.31, the book is total to
Page 290, the superstar net of the book：
http：//www.sslibrary.com/reader/jpath/jpathreaderSsid=10706389＆d=
81610d2e12ae9df1c9f4c289b7eafe86
The works proposes that it is general to improve bearing vibration resistance and increase one of effective ways of bearing capacity in page 153
Floating ring is installed in journal bearing, it is as follows the advantages of floating collar bearing：
1. improve vibration resistance.
2. reduce heating (it is square directly proportional due to frictional work and peripheral speed, so if floating ring is with equal to main shaft
The half rotation of angular speed, then gross calorific power is about smaller 1/2) than general cylindrical radial bearing
3. circumferentially uniform scratch, this ensures that ring keeps cylindrical shape.
4. improve functional reliability (when floating ring side is blocked, opposite side works on).
5. in the damping impacted with increase main uranium radial displacement under varying load effect (due to double oil films be present).
Above-mentioned operation principle can also be with further reference to documents below：Т а а н а к а М, Х o р и Ю Х а р а с т e р и с
тикиустойчивоcти подшипников с плаввЮщeй втулкой.-В книге：Проблемы
т pe н и я и c м а з к и .Tp.ASME.Cep н я .F.M.M и p, 1972, No.3,55-67.
The present invention adopts the following technical scheme that realization：
Deep hole processing cutter with floating ring, including cutter head 2, knife bar 3, floating ring 5, it is characterised in that cutter head 2 is located at
In workpiece 1, cutter head is fixedly connected with knife bar, there is through hole inside knife bar, and floating ring is enclosed on knife bar, and the external diameter of floating ring is less than deeply
Hole internal diameter, the internal diameter of floating ring are more than the external diameter of knife bar 3, and floating ring is located in sealing space, and cuttings liquid is from the oil on oil delivering unit 4
Mouth 6 flows into, and by cutter head 2, is flowed out from knife bar interior bone.
The described deep hole processing cutter with floating ring, it is characterised in that processed in floating ring 5 close to one end of cutter head
There is outage 7, there is cutting fluid to be flowed out from outage 7.
The described deep hole processing cutter with floating ring, it is characterised in that a part of cutting fluid is from the outer surface of floating ring 5
Gap between inner walls of deep holes is flowed through, and gap of another part cutting fluid between the inner surface of floating ring 5 and knife bar 3 is flowed through.
The present invention has also used for reference tilting bush hydrodynamic sliding bearing principle.The machine your good chief editor Higher Education Publishing House of Pu publishes
Tool designs (the 8th edition) introduction, and liquid has wedge effect, and when liquid flows through wedge shape space, liquid internal will produce pressure,
The pressure is higher than the pressure in non-wedge space.Wedge-shaped oil film makes axle be stable at correct position within the bearing, in deep hole machining
Knife bar is set to be located at correct position using power caused by wedge-shaped oil film.
Tilting-pad bearing can form wedge-shaped oil film and be widely used.Its operation principle is as follows：Bearing shell is made up of secter pat, axle
Watt gradient can with the difference of axle journal position adjust automatically, drawn with adapting to the elastic deformation of different loads, rotating speed and axle
The deflection situation risen.The appropriate gap between axle journal and bearing shell is kept, reliable friction, lubrication oil film can be set up.Even in
During no-load running, axle and each bearing shell are also relative on some eccentric position, that is, form several oil film wedges for having bearing capacity, and these
Caused oil film pressure helps the stable operating of axle in oil film wedge.
Therefore the deep hole processing cutter with floating ring, its inner surface of floating ring 5 have two or more tilting bush 9.
The present invention has also used for reference the internal structure of gun barrel and gun tube.Helicla flute 8 is designed with this programme, this design philosophy
It with reference to the rifling (rifle) in gun barrel.
Rifling is rifling in gun barrel, allows bullet to produce rotation, improves stability in-flight after bullet projects.Its work
Principle is as follows：The helical form chase cut out in bore makes bullet produce rotation when passing through bore, forms top during flight outside thorax
The stablizing effect of spiral shell ceremony, bullet flight is remote, and trajectory is stable, and the torque of air drag can make bullet around the direction that its barycenter advances
Flight.
Deep hole processing cutter with floating ring, its inner surface of floating ring 5 are the face of cylinder, and the outer surface of floating ring 5 is cylinder
Face, uses for reference the principle of rifling, and spiral shell is machined with the outer surface of knife bar 3 or floating ring inner surface or floating ring outer surface in the present invention
Spin slot 8.Cuttings liquid flows through helicla flute, because of the effect of a plurality of helicla flute, cutting fluid for the helical movement, liquid of rotation in flowing
The stablizing effect of gyro ceremony is formed, prevents cutter and cutter bar from deviateing ideal position.Spiral can also form dynamic pressure oil film.It is also available
Spiral is pumped into effect to the gap fuel feeding between floating ring and knife bar.
Beneficial effects of the present invention：Firstth, the present invention refers to the design philosophy of floating collar bearing, is cased with deep hole knife bar
Floating ring, improve the vibration resistance of deep hole processing cutter.Secondth, the present invention has according to wedge-shaped oil film principle, the inner surface of floating ring 5
Two or more tilting bush 9, wedge shape space is formed, pressure can be produced by flowing through the liquid of wedge shape space, prevent knife bar
Deflection.3rd, helicla flute is machined with the outside of knife bar or on the inside of floating ring or on the outside of floating ring, cuttings liquid makees spiral fortune when flowing
Dynamic, the liquid of rotation forms the stablizing effect of gyro ceremony, prevents cutter and cutter bar from deviateing ideal position.
Brief description of the drawings
Fig. 1 is the simple deep hole processing cutter with floating ring, and Fig. 2 is the tilting bush formula deep hole machining knife with floating ring
Tool, Fig. 3 is the spiral groove type deep hole processing cutter with floating ring.In figure：1- workpiece, 2- cutter heads, 3- knife bars, 4- oil delivering units,
5- floating rings, 6- hydraulic fluid ports, 7- outages, 8- helicla flutes, 9- tilting bush.
Embodiment
Embodiment of the present invention is described further below in conjunction with accompanying drawing, embodiment is not done any to the present invention
Limitation.
Embodiment one：All it is the face of cylinder on the outside of knife bar and on the inside of floating ring and on the outside of floating ring.
Embodiment two：Helicla flute is processed on the outside of knife bar or on the inside of floating ring or on the outside of floating ring.
Embodiment three：Installation tilting bush on the inside of floating ring.
Claims (5)
1. the deep hole processing cutter with floating ring, including cutter head (2), knife bar (3), floating ring (5), it is characterised in that cutter head
(2) in workpiece (1), cutter head is fixedly connected with knife bar, there is through hole inside knife bar, and floating ring is enclosed on knife bar, floating ring
External diameter is less than deep hole internal diameter, and the internal diameter of floating ring is more than the external diameter of knife bar (3), and floating ring is located in sealing space, cuttings liquid from
Hydraulic fluid port (6) on oil delivering unit (4) flows into, and by cutter head (2), is flowed out from knife bar interior bone.
2. the deep hole processing cutter according to claim 1 with floating ring, it is characterised in that close in floating ring (5)
One end of cutter head is machined with outage (7), has cutting fluid to be flowed out from outage (7).
3. the deep hole processing cutter according to claim 1 with floating ring, it is characterised in that a part of cutting fluid is from floating
Gap of the rotating ring (5) between outer surface and inner walls of deep holes is flowed through, and another part cutting fluid is from floating ring (5) inner surface and knife bar
(3) flow through in the gap between.
4. the deep hole processing cutter according to claim 1 with floating ring, it is characterised in that floating ring (5) inner surface
There are two or more tilting bush (9).
5. the deep hole processing cutter according to claim 1 with floating ring, it is characterised in that floating ring (5) inner surface
For the face of cylinder, floating ring (5) outer surface is the face of cylinder, in knife bar (3) outer surface or floating ring inner surface or floating ring outer surface
It is machined with helicla flute (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902686.2A CN106238782B (en) | 2016-10-10 | 2016-10-10 | Deep hole processing cutter with floating ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610902686.2A CN106238782B (en) | 2016-10-10 | 2016-10-10 | Deep hole processing cutter with floating ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106238782A CN106238782A (en) | 2016-12-21 |
| CN106238782B true CN106238782B (en) | 2018-04-06 |
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ID=57611607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610902686.2A Active CN106238782B (en) | 2016-10-10 | 2016-10-10 | Deep hole processing cutter with floating ring |
Country Status (1)
| Country | Link |
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| CN (1) | CN106238782B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788238B (en) * | 2018-08-02 | 2023-09-15 | 中北大学 | Deep hole processing intelligent drill rod system with radial tilting pad |
| CN109570622B (en) * | 2018-12-04 | 2020-02-21 | 中国兵器装备集团自动化研究所 | Floating guide mechanism for deep hole groove machining, machining method and application |
| CN111185777B (en) * | 2020-01-21 | 2021-10-22 | 江苏明璐不锈钢有限公司 | Fastener drilling auxiliary device capable of guaranteeing concentric precision |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE485911T1 (en) * | 2005-12-06 | 2010-11-15 | Magnaghi Aeronautica S P A | METHOD AND DEVICE FOR DEEP HOLE DRILLING AND FOR PRODUCING NON-CYLINDRICAL INNER CONTOURS |
| DE102009012938A1 (en) * | 2009-03-12 | 2010-09-23 | Kennametal Inc. | Cutting tool for deep hole boring, has cylindrical shaft and shaft end with cut part in front side, and sleeve mounted at shaft in longitudinally-movable manner, where inner diameter of sleeve is slightly larger than outer diameter of shaft |
| US8910360B1 (en) * | 2009-12-03 | 2014-12-16 | The Boeing Company | Floating insert removal tool |
| CN205110893U (en) * | 2015-11-24 | 2016-03-30 | 杨朝辉 | Quick centering combination chamfer is bored |
| CN206104964U (en) * | 2016-10-10 | 2017-04-19 | 中北大学 | Dark hole machining tool with ring floats |
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- 2016-10-10 CN CN201610902686.2A patent/CN106238782B/en active Active
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| Publication number | Publication date |
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| CN106238782A (en) | 2016-12-21 |
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