CN206550411U - A kind of frictional vibration damping inserts cutter bar of milling cutter - Google Patents
A kind of frictional vibration damping inserts cutter bar of milling cutter Download PDFInfo
- Publication number
- CN206550411U CN206550411U CN201621353246.8U CN201621353246U CN206550411U CN 206550411 U CN206550411 U CN 206550411U CN 201621353246 U CN201621353246 U CN 201621353246U CN 206550411 U CN206550411 U CN 206550411U
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- CN
- China
- Prior art keywords
- cutter
- heart axle
- vibration damping
- cavity
- pallet
- 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)
- Milling Processes (AREA)
Abstract
The utility model discloses a kind of frictional vibration damping and inserts cutter bar of milling cutter, including：Tool rest, pallet, friction component, mass ball, arbor assembly and cutter hub.Cutter head body is provided with through hole provided with cavity, cutter hub middle part and afterbody, and heart axle small end is located in cutter head cavity, and the big end of heart axle is fixed in cutter hub afterbody endoporus, and heart axle passes through the through hole in the middle part of cutter hub；Tool rest is connected by screw thread with cutter head body；Fixation is connected through a screw thread between pallet and cutter hub, pallet side is provided with blind hole, for placing permanent magnet；The base that rubs is provided with arc groove, for placing mass ball.Cutter head body is provided with cavity, and for installing pallet, friction component, mass ball, hex nut, check washer, cutter hub afterbody endoporus is used for the installation at the big end of heart axle.The utility model can effectively suppress the chatter phenomenon of big L/D ratio cutter.
Description
Technical field
The utility model is related to a kind of frictional vibration damping and inserts cutter bar of milling cutter, belongs to machining technology field.
Background technology
The vibration of cutter and workpiece is influence machining accuracy, reduction production rate and cutter life in working angles
" arch-criminal ", particularly insert in Milling Machining, excision workpiece surplus is big, and stress is big, and the vibration of generation is also big, it is easy to reduce
Cutter life and lathe life-span.Therefore, how effectively to prevent and control vibration just to seem particularly significant.
Friction damping principle produces frictional damping by the friction means of cutter hub with the metal quality ball that intracavitary is added, to inhale
Energy when bar of returning sword vibrates, with nonlinear feature.In conventional dissipative cell, frcition damper is due to low cost
Honest and clean, energy dissipation capacity is relatively strong and is widely used.Because frcition damper has preferable coulomb characteristic, friction energy-dissipating is bright
It is aobvious, larger additional damping can be provided, simple structure, materials are easy, thus with good application prospect.
The content of the invention
The purpose of this utility model be in order to solve processing when vibration problem, it is proposed that a kind of frictional vibration damping plugs in milling cutter
Knife bar, to eliminate the chatter phenomenon in slotting Milling Machining, improves metal cutting quality.
A kind of frictional vibration damping inserts cutter bar of milling cutter, by tool rest, pallet, friction component, mass ball, arbor assembly and cutter hub structure
Into.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and cutter head is provided with the middle part of cavity, cutter hub and afterbody is provided with through hole, cutter head and knife
Seat is connected through a screw thread；Heart axle small end is located in cutter head cavity, and the big end of heart axle is fixed in cutter hub afterbody endoporus, and heart axle passes through knife
Through hole in the middle part of body.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and fixation is connected through a screw thread between pallet and cutter hub, and pallet side is provided with
Blind hole, for placing permanent magnet；The base that rubs is provided with arc groove, for placing mass ball.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and pallet is made up of the non-ferromagnetic material material such as copper or aluminium, and permanent magnet is by neodymium
Iron boron magnets are made, and tool rest is made up of hard alloy or tool steel.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and its cutter head body is provided with cavity, for installing pallet, friction component, matter
Ball, hex nut and check washer are measured, cutter hub afterbody endoporus is used for the installation at the big end of heart axle.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and the small end of its heart axle is inserted by afterbody endoporus, is inserted into the cavity of cutter head
It is interior, heart axle small end is screwed in hex nut by the hexagonal counter sink at live spindle big end using outer hexagonal spanner, makes heart axle
Small end is fixed by hex nut, and big end is connected by the internal thread of external screw thread and knife tail cavity, hex nut and cutter hub
Between be provided with check washer, hex nut can provide appropriate compression for cutter hub, significantly improve the rigidity of cutter hub, reduction knife
The Oscillation Amplitude of body.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and elastic component is put into cavity after installing and connect with heart axle by its arbor assembly
Touch, sheet rubber is put into cavity, then sleeve, mass ball and friction base are inserted into cavity.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and its pallet includes hexagonal counter sink, pallet external screw thread and permanent magnet, pallet
Side is provided with blind hole, and for placing permanent magnet, opposite side is provided with hexagonal counter sink, is circumferentially with pallet external screw thread, pallet is used
Outer hexagonal spanner screws in cutter head body endoporus by hexagonal counter sink, makes pallet external screw thread and cutter head cavity screw-internal thread fit, from
And seal friction component and mass ball.Permanent magnet is used to provide appropriate radial direction restoring force to mass ball, prevent mass ball by
Influence to insert the stability of milling cutter in bias for a long time.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and its tool rest passes through tool rest external screw thread and cutter head inner hole thread with cutter head body
Coordinate, cutter hub is made up of tool steel or hard alloy.
A kind of frictional vibration damping inserts cutter bar of milling cutter, and its base that rubs is made up of elastomeric material, and side is provided with arc groove, uses
In the radial positioning of mass ball.Mass ball is circular metal ball, and material is wolfram steel.
The beneficial effects of the utility model are：
This frcition damper will not produce cold bonding or cooling solidification, and will not produce permanent compared with conventional damper
Skew；Normal pressure is not produced when not working, damper working life is improved.It can also be produced during work according to sliding position size
Corresponding frictional force.Meanwhile, damping mechanism is made up of cheap material, and without sealing, maintenance cost is low；Can have under different rotating speeds
Effect suppresses the flutter in Milling Process, the processing available for various deep hole deep-recessed parts.
Brief description of the drawings
Fig. 1 is the utility model axial sectional view.
Fig. 2 is the utility model cutter hub axial sectional view.
Fig. 3 is the utility model friction base left view.
Fig. 4 is the utility model pallet left view.
1- tool rest 2- pallet 3- friction component 4- mass ball 5- arbor assembly 6- cutter hub 101- tool rest internal thread holes
102- tool rest external screw thread 201- hexagonal counter sink 202- pallet external screw thread 203- permanent magnets 301- friction base 302- sleeves
The 303- sheet rubber 304- elastic component 501- hex nut 502- check washer 503- heart axle 504- hexagonal counter sink 505- hearts
Axle external screw thread.
Embodiment
The utility model is further elaborated below in conjunction with accompanying drawing.
Insert during Milling Machining, the interaction of blade and workpiece plugs in milling arbor therefore by periodic impulsive disturbance.
When knife bar is by axial impact force, because elastic component 304 has certain elasticity, mass ball 4 and friction component 3 can be in axial sides
To trace movement, elastic component is compressed, so as to play certain damping effect.When slotting cutter bar of milling cutter is by lateral impact forces
When, because the first-order modal of knife bar is curved mode, the rigidity of cutter hub 6 is improved, the transversely deforming of reduction cutter hub 6 can effectively suppress knife
Body cutting vibration.
Described frictional vibration damping inserts cutter bar of milling cutter and first applies certain pretightning force, heart axle group to arbor assembly 5 using preceding
Part 5 applies certain compression to cutter hub 6, and cutter hub produces micro compression, according to material mechanics principle, the effect of compression
With larger reinforcing cutter hub static rigidity, the fatigue strength of cutter hub can be improved, so that effectively reduction unit lateral impact loading is made
With the Relative Vibration variable of lower knife body 6.
The innovative point that described frictional vibration damping inserts cutter bar of milling cutter is cutter head cavity inside friction component 3 and mass ball
4 application, when knife bar is by impact loading, mass ball 4 is rolled because self inertia acts on arcuately groove, mass ball
Frictional force is produced between the sheet rubber of upper end and friction base, spherical mass ball is reacted on, its motion radially is prevented,
Effectively reduce radial impact load.
When the centre of sphere of mass ball 4 deviates knife bar axis, apply in gravity and permanent magnet 203 under the synergy in magnetic field,
So that mass ball revert to knife bar axial location, that is, in the arc groove of base 301 that rubs.Knife bar is at different locus
Permanent magnet 203 all can produce restoring moment to mass ball 4.
Claims (4)
1. a kind of frictional vibration damping inserts cutter bar of milling cutter, it is characterised in that：By tool rest, pallet, friction component, mass ball, heart axle group
Part and cutter hub are constituted, and cutter head is provided with the middle part of cavity, cutter hub and afterbody is provided with through hole；Arbor assembly include heart axle, hex nut, with
And loosening pad, heart axle small end is located in cutter head cavity, and the big end of heart axle is fixed in cutter hub afterbody endoporus, and heart axle is passed through in cutter hub
The through hole in portion；Friction component includes the sheet rubber above friction base, sleeve and mass ball, elastic component；Mass ball is placed on
Cutter head cavity, between friction base and sheet rubber；Pallet and cutter head, are connected through a screw thread fixation between tool rest and cutter head.
2. a kind of frictional vibration damping according to claim 1 inserts cutter bar of milling cutter, it is characterised in that：Cutter head body cavity diameter
For the 65%-70% of tool bit part diameter.
3. a kind of frictional vibration damping according to claim 1 inserts cutter bar of milling cutter, it is characterised in that：The arc of friction base is recessed
Groove is used to place mass ball.
4. a kind of frictional vibration damping according to claim 1 inserts cutter bar of milling cutter, it is characterised in that：Rub base arc groove
Depth is 0.2 times of arc diameter, and the cavity diameter in friction component is 2 times of quality bulb diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353246.8U CN206550411U (en) | 2016-12-12 | 2016-12-12 | A kind of frictional vibration damping inserts cutter bar of milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353246.8U CN206550411U (en) | 2016-12-12 | 2016-12-12 | A kind of frictional vibration damping inserts cutter bar of milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206550411U true CN206550411U (en) | 2017-10-13 |
Family
ID=60368690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621353246.8U Expired - Fee Related CN206550411U (en) | 2016-12-12 | 2016-12-12 | A kind of frictional vibration damping inserts cutter bar of milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206550411U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202142A (en) * | 2018-11-23 | 2019-01-15 | 哈尔滨理工大学 | A kind of plug in milling cutter intelligent control method |
| CN114192855A (en) * | 2021-12-02 | 2022-03-18 | 北京航空航天大学 | Vibration reduction milling cutter |
| CN115070096A (en) * | 2022-08-16 | 2022-09-20 | 成都航空职业技术学院 | Vibration reduction method of milling cutter |
-
2016
- 2016-12-12 CN CN201621353246.8U patent/CN206550411U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109202142A (en) * | 2018-11-23 | 2019-01-15 | 哈尔滨理工大学 | A kind of plug in milling cutter intelligent control method |
| CN114192855A (en) * | 2021-12-02 | 2022-03-18 | 北京航空航天大学 | Vibration reduction milling cutter |
| CN115070096A (en) * | 2022-08-16 | 2022-09-20 | 成都航空职业技术学院 | Vibration reduction method of milling cutter |
| CN115070096B (en) * | 2022-08-16 | 2022-10-25 | 成都航空职业技术学院 | Vibration reduction method for milling cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 Termination date: 20181212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |