CN201067809Y - Boring bar - Google Patents
Boring bar Download PDFInfo
- Publication number
- CN201067809Y CN201067809Y CNU2007200715809U CN200720071580U CN201067809Y CN 201067809 Y CN201067809 Y CN 201067809Y CN U2007200715809 U CNU2007200715809 U CN U2007200715809U CN 200720071580 U CN200720071580 U CN 200720071580U CN 201067809 Y CN201067809 Y CN 201067809Y
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- China
- Prior art keywords
- rod
- boring bar
- support set
- fixed
- bar
- 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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- 238000013016 damping Methods 0.000 claims description 6
- 230000035939 shock Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NHDHVHZZCFYRSB-UHFFFAOYSA-N pyriproxyfen Chemical compound C=1C=CC=NC=1OC(C)COC(C=C1)=CC=C1OC1=CC=CC=C1 NHDHVHZZCFYRSB-UHFFFAOYSA-N 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model provides a boring bar which comprises a bar body and a knife head which is arranged at the end of the bar body; wherein, the bar body is provided with a shock absorption centering device which comprises a support sleeve which surrounds the bar body, and an elastic part which is fixed on the surface of the support sleeve, and the distance between the top end of the elastic part and the axes of the bar body is larger than the distance between a knife tip and the axes of the bar body. The boring bar can eliminate the shock of the boring bar in the manufacturing process of a boring machine or a lathe and has the advantages of exact location, improvement of processing performance and precision of workpieces.
Description
Technical field
The utility model relates to field of machining, particularly a kind of endoporus machining tool boring bar.
Background technology
Endoporus machining tool (as boring machine or finishing machine) is when the turning endoporus, and the radial stability of boring bar is most important.If in the process of turning, boring bar moves radially or shakes, and will cause the circumferentially uneven situation of turning amount, knife, cutter relieving take place when serious and causes workpiece to be scrapped.
In order to improve the stability of boring bar, reduce vibrations, common way has at present: the rigidity that improves the boring bar body of rod.Adopt high-strength material to make the boring bar body of rod, improve the boring bar self rigidity.This method during for the little bore hole of processing aspect ratio effect obviously, but when the bore hole aspect ratio is big, still can't satisfy stability requirement.Another kind method is the radial force that reduces boring bar.Reduce the blade cut sword radius of corner, increase method such as tool cutting edge angle and all can reduce the suffered radial load of boring bar, thereby keep boring bar centering, reduce vibrations.But, the parameter of blade also with processing capacity, process velocity and relevant to requirement of surface smoothness etc., so it is limited that this method is improved effect.
The 98214329.X number Chinese utility model patent that on August 11st, 1999, bulletin was authorized introduced a kind of center boring bar of location automatically, and it is provided with centering bar and the axially movable push rod that moves radially on the boring bar body of rod.Because the centering bar is nonelastic, can't change diameter, and can't play real centering effect because its diameter than cutting edge is little.
The utility model content
The purpose of this utility model is to provide a kind of boring bar, and this boring bar can be eliminated from the vibrations in boring machine or machined into process, accurately the location.
In order to achieve the above object, the utility model boring bar comprises the body of rod and is located at the cutter head of body of rod end, the body of rod is provided with the damping centring means, this device comprises around the support set of the body of rod and is fixed on the lip-deep elastic component of support set that the distance in the top of elastic component and body of rod axle center is greater than the distance in point of a knife and body of rod axle center.
Wherein, be provided with bearing shell between the body of rod and support set, this bearing shell is fixed on the body of rod.
Further, described support set is provided with some oilholes that communicate with the body of rod, is used to carry drier oil.This drier oil hole is preferably 3, is evenly distributed on the support set circumference, and drier oil is delivered to the routing motion face of the body of rod and gripper shoe, and the body of rod and bearing shell are lubricated.
Preferably, its circumferencial direction of described support set upper edge evenly is provided with at least three elastic components.This elastic component comprises spring and is fixed on the gripper shoe on the spring and is fixed on back-up block on the gripper shoe.Gripper shoe and back-up block can be integrally formed.Described spring preferably is at least 2, axially is provided with along support set.
The beneficial effects of the utility model are: in the process, owing to have friction between the elastic component on the body of rod and the inwall of workpiece, support set is fixed, by elastic component the boring bar body of rod is stablized, reduce the vibrations of boring bar in the process, accurately the location can be improved processing characteristics effectively, improves the precision of workpiece.
Description of drawings
Fig. 1 is the structural representation of the preferred boring bar of the utility model;
Fig. 2 is the vertical view of the preferred boring bar of the utility model among Fig. 1;
Fig. 3 is that the A-A of the preferred boring bar of the utility model among Fig. 2 is to cutaway view;
Fig. 4 is the user mode figure of the preferred boring bar of the utility model among Fig. 1.
Description of reference numerals
100 boring bars
10 bodies of rod, 11 grooves
20 cutter heads, 21 points of a knife
30 damping centring means, 31 support sets
311 grooves, 312 holes
32 elastic components, 321 springs
322 gripper shoes, 323 back-up blocks
33 bearing shells, 34 screws
35 drier oil holes, 36 protection rings
200 workpiece, 210 holes
The specific embodiment
In order further to understand structure of the present utility model, feature and purpose thereof, see also the detailed description of following relevant drawings and the specific embodiments of the present utility model:
As shown in Figure 1, be the structural representation of the preferred boring bar 100 of the utility model, boring bar 100 comprises the body of rod 10 and cutter head 20, and cutter head 20 is fixed on an end of the body of rod 10, and the body of rod 10 preferred 45# of employing steels are done.Boring bar 100 is provided with damping centring means 30, and in conjunction with Fig. 2 and shown in Figure 3, this damping centring means 30 comprises support set 31 and be fixed on elastic component 32 on the support set 31 that the support set 31 preferred 40Cr of employing steels are done, and are oppositely arranged by two semi-rings to form.Its circumference of the body of rod 10 upper edges is provided with groove 11, and support set 31 is positioned at groove 11, and around the body of rod 10.
Owing to there is friction between the support set 31 and the body of rod 10, in order to reduce in the bore hole process wearing and tearing to the body of rod 10, can between the support set 31 and the body of rod 10, bearing shell 33 be set, this bearing shell 33 is a semi-round ring shape, the preferred ZQSn6-6-3 that adopts makes, two is a cover, is fixed on by bolt or alternate manner in the groove 11 of the body of rod 10.Support set 31 is provided with at least one drier oil hole 35, also the drier oil pole that processes can be fixed in the through hole on the support set 31.The number in drier oil hole 35 can freely be provided with, and being preferably is 3, evenly distributes on the support set circumference.Drier oil is lubricated by 35 pairs of bodies of rod 10 in drier oil hole and bearing shell 33, can prevent the overheated wearing and tearing that cause of bearing shell friction.Also can select for use alternate manner that the body of rod 10 and bearing shell 33 are lubricated.Drier oil is a lubricating grease, adopts dry oil lubrication, be because boring bar 100 in use is rotation at a high speed, and dry oil lubrication is not high to seal request, is difficult for running off, splashing, leak, and can save oil plant.Be provided with protection ring 36 outside the support set 31, be used for fixing support set 31, can be connected with support set 31 by screw.
From Fig. 3, can know and find out, elastic component 32 is fixed in the groove 311 on the support set 31, and it comprises spring 321 and gripper shoe 322, back-up block 323, spring 321 preferred disk springs, one end of spring 321 is fixed on the support set 31, and the other end connects gripper shoe 322.Be fixed with back-up block 323 on the gripper shoe 322, can be by welding or alternate manner.The distance in the surface of back-up block 323 and the body of rod 10 axle center is greater than the distance of point of a knife 21 with the body of rod 10 axle center.Elastic component 32 also can adopt other flexible member and comprise the device of flexible member.In the present embodiment, preferably be provided with 3 elastic components 32 along support set 31 circumference, wherein, each elastic component 32 preferably has two springs 321, can do corresponding modify as required.Back-up block 323 can be preferably and gripper shoe 322 integrally formed.Except spring connects, in order to make structure firmer, support set 31 also is connected by screw 34 with gripper shoe 322, one end of screw 34 and support set 31 are by being threaded, the other end passes the hole 312 on the support set, screw 34 and hole 312 matched in clearance are so that gripper shoe 322 support set 31 motions relatively.
Do not beginning to add man-hour, boring bar 100 is positioned at the outside of workpiece 200, and the distance in the surface of back-up block 323 and the body of rod 10 axle center is greater than the distance of point of a knife 21 with the body of rod 10 axle center at this moment.In the bore hole process, boring bar 100 stretches in the hole 210 of workpiece 200.Back-up block 323 is pushed by hole 210 sidewalls, causes spring 321 to shrink, and makes back-up block 323 close attachment on the sidewall in hole 210.When cutter head 20 arrival worker carries were put, boring bar 100 began rotation, feed simultaneously.Because the effect of frictional force between back-up block 323 and hole 210 sidewalls, back-up block 323, gripper shoe 322 and support set 31 maintain static, and only bearing shell 33 is driven and rotates by boring bar 100.Because the back-up block 323 equal close attachment of three elastic components 32 are on 210 sidewalls of hole, make boring bar 100 can resist bigger radial load, moving radially of point of a knife 21 can offset for supported 323 and set upright, and can play damping, centering effect, helps the processing of bore hole.Actual proof, this boring bar 100 can be used for processing aspect ratio can reach hole 10 or more, and no knife, cutter relieving phenomenon are stablized in turning.
Though the utility model discloses preferred embodiment as above; right its is not in order to limit the utility model; anyly have the knack of this skill person; in not breaking away from spirit and scope of the present utility model; when doing various changes and retouching, therefore protection domain of the present utility model should be as the criterion with the claim scope of applying for a patent.
Claims (8)
1. boring bar, the cutter head that it comprises the body of rod and is located at body of rod end, it is characterized in that, the body of rod is provided with the damping centring means, this device comprises around the support set of the body of rod and is fixed on the lip-deep elastic component of support set that the distance in the top of elastic component and body of rod axle center is greater than the distance in point of a knife and body of rod axle center.
2. boring bar as claimed in claim 1 is characterized in that, is provided with bearing shell between the described body of rod and support set, and this bearing shell is fixed on the body of rod.
3. boring bar as claimed in claim 1 is characterized in that, described support set circumference is provided with at least one drier oil hole that communicates with the body of rod.
4. boring bar as claimed in claim 3 is characterized in that, described drier oil hole is 3, is evenly distributed on the support set circumference.
5. as each described boring bar of claim 1 to 4, it is characterized in that its circumferencial direction of described support set upper edge evenly is provided with at least three elastic components.
6. boring bar as claimed in claim 5 is characterized in that, described elastic component comprises spring, be fixed on the gripper shoe on the spring and be fixed on back-up block on the gripper shoe.
7. boring bar as claimed in claim 6 is characterized in that described gripper shoe and back-up block are integrally formed.
8. boring bar as claimed in claim 6 is characterized in that described spring is at least 2, axially is provided with along support set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200715809U CN201067809Y (en) | 2007-06-25 | 2007-06-25 | Boring bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200715809U CN201067809Y (en) | 2007-06-25 | 2007-06-25 | Boring bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201067809Y true CN201067809Y (en) | 2008-06-04 |
Family
ID=39489181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200715809U Expired - Fee Related CN201067809Y (en) | 2007-06-25 | 2007-06-25 | Boring bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201067809Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010101513A1 (en) | 2009-03-03 | 2010-09-10 | Seco Tools Ab | Rotating tool |
| CN102615301A (en) * | 2012-03-26 | 2012-08-01 | 华中科技大学 | Elastic boring bar |
| CN103121116A (en) * | 2013-03-18 | 2013-05-29 | 山东普利森集团有限公司 | Shock-absorbing boring bar |
| CN104801787A (en) * | 2015-04-22 | 2015-07-29 | 成都陵川特种工业有限责任公司 | Vehicle part-machining device and fixture on same |
| CN108994324A (en) * | 2018-08-15 | 2018-12-14 | 东南大学 | A kind of damping boring bar and its working method with external bump leveller |
| CN110227832A (en) * | 2019-03-26 | 2019-09-13 | 卞直年 | A kind of deep hole fine boring head |
| CN111375788A (en) * | 2020-04-15 | 2020-07-07 | 安徽马钢重型机械制造有限公司 | Continuous casting roller water-cooling hole machining tool and water-cooling effect improving method |
| CN112935812A (en) * | 2018-12-15 | 2021-06-11 | 烟台大丰轴瓦有限责任公司 | Boring marking center of bearing bush oil line processing system |
-
2007
- 2007-06-25 CN CNU2007200715809U patent/CN201067809Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102341205A (en) * | 2009-03-03 | 2012-02-01 | 山高刀具公司 | Rotating tool |
| EP2403677A4 (en) * | 2009-03-03 | 2012-08-22 | Seco Tools Ab | Rotating tool |
| US8950985B2 (en) | 2009-03-03 | 2015-02-10 | Seco Tools Ab | Rotating tool |
| WO2010101513A1 (en) | 2009-03-03 | 2010-09-10 | Seco Tools Ab | Rotating tool |
| CN102615301A (en) * | 2012-03-26 | 2012-08-01 | 华中科技大学 | Elastic boring bar |
| CN103121116B (en) * | 2013-03-18 | 2015-08-12 | 山东普利森集团有限公司 | Damping boring bar |
| CN103121116A (en) * | 2013-03-18 | 2013-05-29 | 山东普利森集团有限公司 | Shock-absorbing boring bar |
| CN104801787A (en) * | 2015-04-22 | 2015-07-29 | 成都陵川特种工业有限责任公司 | Vehicle part-machining device and fixture on same |
| CN108994324A (en) * | 2018-08-15 | 2018-12-14 | 东南大学 | A kind of damping boring bar and its working method with external bump leveller |
| CN112935812A (en) * | 2018-12-15 | 2021-06-11 | 烟台大丰轴瓦有限责任公司 | Boring marking center of bearing bush oil line processing system |
| CN110227832A (en) * | 2019-03-26 | 2019-09-13 | 卞直年 | A kind of deep hole fine boring head |
| CN110227832B (en) * | 2019-03-26 | 2024-05-14 | 卞直年 | Deep hole fine boring head |
| CN111375788A (en) * | 2020-04-15 | 2020-07-07 | 安徽马钢重型机械制造有限公司 | Continuous casting roller water-cooling hole machining tool and water-cooling effect improving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080604 Termination date: 20160625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |