CN110385449A - A kind of thin bar boring cutter - Google Patents
A kind of thin bar boring cutter Download PDFInfo
- Publication number
- CN110385449A CN110385449A CN201810351488.0A CN201810351488A CN110385449A CN 110385449 A CN110385449 A CN 110385449A CN 201810351488 A CN201810351488 A CN 201810351488A CN 110385449 A CN110385449 A CN 110385449A
- Authority
- CN
- China
- Prior art keywords
- transition part
- boring cutter
- thin bar
- boring
- bar boring
- 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.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims description 6
- 238000010000 carbonizing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000003754 machining Methods 0.000 abstract description 4
- 238000003801 milling Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
- B23B29/022—Boring bars with vibration reducing means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The present invention relates to a kind of thin bar boring cutters comprising round boring bar is respectively arranged on it through screw thread lathe interconnecting piece, transition part and blade attachment portion interconnected, successively arrange from left to right, it is characterized in that, milling out on transition part, there are two planes, and are oppositely arranged.So, the plane being oppositely arranged there are two being milled out on the transition part of boring cutter, so that the rigidity in orthogonal 2 directions is different on boring bar section, its self-excited vibration can effectively be eliminated, reduce the vibratory output of boring bar in process, to improve service life and its machining accuracy, and transition part and lathe interconnecting piece, blade attachment portion are to be detachably connected, it can be according to the length of specific processing operating condition variation boring bar, the transition part of different-stiffness and intensity can also be matched according to actual vibration situation, and replaced, so that vibratory output control is within zone of reasonableness.
Description
Technical field
The present invention relates to machine cut manufacture field, in particular to a kind of thin bar boring cutter.
Background technique
In boring processing, when especially carrying out boring to deep hole, since boring bar is elongated, process rigidity is relatively low, is easy
Generate vibration.Vibration not only influences the machining accuracy in hole, brings unnecessary cutting output, causes energy waste, also will increase hole
The surface roughness of wall, or even crack, and boring cutter long-time vibration exceeding the standard in use, can also reduce it and use the longevity
Life, causes unnecessary economic loss.The above problem urgently to be resolved.
Summary of the invention
In order to solve the above-mentioned technical problem, the purpose of the present invention is to provide a kind of designs of structure simply, and antivibration effect is good
Thin bar boring cutter.
In order to solve the above-mentioned technical problem, the present invention relates to a kind of thin bar boring cutters comprising round boring bar divides on it
It is not provided with screw thread lathe interconnecting piece, transition part and blade attachment portion interconnected, successively arranges from left to right.In mistake
Plane there are two milling out is crossed in portion, and is oppositely arranged.Multiple long striped grooves are offered in the plane.Phase between above-mentioned groove
It is mutually parallel, and tilted with transition part central axes.
The plane being oppositely arranged there are two being milled out on the transition part of boring cutter, so that orthogonal 2 on boring bar section
The rigidity in direction is different, can effectively eliminate its self-excited vibration, and the groove opened up on transition facial planes can further increase
The difference of rigidity, reduces the vibratory output of boring bar in process, to improve service life and its machining accuracy.Furthermore transition
Portion is detachably to be threadedly coupled with lathe interconnecting piece and blade attachment portion, can change the length of boring bar according to actual processing operating condition,
The transition part of different-stiffness and intensity can also be matched according to actual vibration situation, and be replaced, so that vibratory output control is being closed
It manages within range.
As a further improvement of the present invention, the width of plane is not less than the half of transition part diameter.
Using the above preferred scheme, under the premise of guaranteeing boring bar self-strength, the plane width milled out is bigger, section
The difference of rigidity is bigger on 2 directions in the vertical direction of face, and the amplitude of self-excited vibration is smaller.
As a further improvement of the present invention, groove is 0 °~30 ° relative to the tilt angle of central axes.
As a further improvement of the present invention, the intensity of transition part material, rigidity are all larger than lathe interconnecting piece, blade connection
Portion.
Using the above preferred scheme, on the one hand, so that transition part itself has preferable rigidity, reduce what vibration occurred
Amplitude improves it and processes accuracy；Still further aspect may make and mill out on boring bar under the premise of meeting intensity requirement
Plane is as big as possible.
As a further improvement of the present invention, transition part material is 20CrMnTi, and comentation hardening is passed through on its surface.
Using the above preferred scheme, so that the transition part of boring bar has preferable wearability and center portion toughness, processing
Its rigidity is larger in the process, has preferable fatigue resistance.
As a further improvement of the present invention, screw thread is tapered thread.
Using the above preferred scheme, tapered thread is due to itself taper, so that it is when carrying out cooperation and screwing
There is " self-tightening effect " between each component part of boring bar, to improve its own rigidity.
As a further improvement of the present invention, the taper of tapered thread is not more than 1/5.
As a further improvement of the present invention, the thread form section of tapered thread is all the same.
Using the above preferred scheme, the thread form section of tapered thread is identical, so that the feature having fits like a glove, thus
It ensure that the compactness of connection.
It as a further improvement of the present invention, is interference connection between lathe interconnecting piece, transition part and blade attachment portion,
Straight grain circle and twill circle are respectively equipped on the outer surface of transition part axial ends.
It using the above preferred scheme, is interference connection between lathe interconnecting piece, transition part and blade attachment portion, in this way
One, influence of the vibration to compactness is coupled between three due to generating in process is avoided to a certain extent.Separately
Outside, straight grain circle and twill circle can further improve the structural strength of transition part.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of thin bar boring cutter of the present invention.
1- circle boring bar；11- lathe interconnecting piece；12- transition part；121- plane；1211- groove；13- blade attachment portion；
2- boring blade.
Specific embodiment
Combined with specific embodiments below, the contents of the present invention are described in further detail:
In order to reach the purpose of the present invention, Fig. 1 shows the structural schematic diagram of thin bar boring cutter of the present invention.The thin bar boring cutter includes circle
Shape boring bar 1 and its boring blade 2 close to end position is fixed on by bolt.Above-mentioned circle boring bar 1 divides for lathe interconnecting piece
11,13 three parts of transition part 12 and blade attachment portion, successively arrange from left to right, between be connected through a screw thread.In transition part
Plane 121 there are two being milled out on 12, and be oppositely arranged.Multiple long striped grooves 1211 are offered in the plane.Above-mentioned groove
It is parallel to each other between 1211, and is tilted with 12 central axes of transition part, tilt angle is generally located on 0 °~30 °.Such one
Come, so that the rigidity in orthogonal 2 directions is different on 1 section of boring bar, can effectively eliminate its self-excited vibration, reduce processing
The vibratory output of boring bar 1 in the process, to improve service life and its machining accuracy, and transition part 12 and lathe interconnecting piece 11 and knife
Piece interconnecting piece 13 is detachable threaded connection, can change the length of boring bar 1 according to actual processing operating condition, can also be according to actual vibration
Situation matches the transition part 12 of different-stiffness and intensity, and is replaced, so that vibratory output control is within zone of reasonableness.
As the further improvement of above-mentioned thin bar boring cutter, 121 width of plane being arranged on transition part 12 is not less than half
The diameter of transition part 12.Under the premise of guaranteeing 1 self-strength of boring bar, 121 width of plane milled out is bigger, section Vertical Square
The difference of rigidity is bigger on 2 upward directions, and the amplitude of self-excited vibration is smaller.
In order to further optimize implementation result of the invention, in another embodiment of the invention, aforementioned interior
On the basis of appearance, intensity, the rigidity of 12 material of transition part are greater than lathe interconnecting piece 11, blade attachment portion 13.Above-mentioned way, a side
The amplitude that vibration occurs is reduced so that transition part 12 itself has preferable rigidity in face, improves it and processes accuracy；Other one
Aspect may make the plane 121 milled out on boring bar 1 as big as possible under the premise of meeting intensity requirement.
In order to further optimize implementation result of the invention, in another embodiment of the invention, aforementioned interior
On the basis of appearance, 12 material of transition part is 20CrMnTi, and comentation hardening is passed through on its surface.
In order to further optimize implementation result of the invention, in another embodiment of the invention, aforementioned interior
On the basis of appearance, the three parts such as lathe interconnecting piece 11, transition part 12 and blade attachment portion 13 can be coupled by tapered thread,
And the taper of tapered thread is not more than 1/5.In this way, which tapered thread is due to itself taper, so that it is being matched
There is " self-tightening effect " between each component part of boring bar 1 when conjunction screws, to improve its own rigidity.In order to enable the spy of screw thread
Sign fits like a glove, and the thread form section of tapered thread is all the same, to guarantee the compactness of connection.
In order to further optimize implementation result of the invention, in another embodiment of the invention, aforementioned interior
On the basis of appearance, interference connection type can be used between lathe interconnecting piece 11, transition part 12 and blade attachment portion 13, such one
Come, avoids influence of the vibration to compactness is coupled between three due to generating in process to a certain extent.
In addition, being respectively equipped with straight grain circle and twill circle on the outer surface of transition part axial ends, transition can further improve
The structural strength in portion.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of thin bar boring cutter comprising round boring bar is respectively arranged on it through screw thread lathe connection interconnected
Portion, transition part and blade attachment portion, successively arrange from left to right, which is characterized in that plane there are two being milled out on transition part, and
It is oppositely arranged；Multiple long striped grooves are offered in the plane；Be parallel to each other between groove, and with transition part central axes phase
Inclination.
2. thin bar boring cutter according to claim 1, it is characterised in that: the width of plane is not less than the half of transition part diameter.
3. thin bar boring cutter according to claim 1, it is characterised in that: groove is 0 °~30 ° relative to the tilt angle of central axes.
4. thin bar boring cutter according to claim 1, it is characterised in that: intensity, the rigidity of transition part material are all larger than lathe connection
Portion, blade attachment portion.
5. thin bar boring cutter according to claim 4, it is characterised in that: transition part material is 20CrMnTi, and its case-carbonizing
Hardening.
6. thin bar boring cutter according to claim 1, it is characterised in that: screw thread is tapered thread.
7. thin bar boring cutter according to claim 6, it is characterised in that: the taper of tapered thread is not more than 1/5.
8. thin bar boring cutter according to claim 7, it is characterised in that: the thread form section of tapered thread is all the same.
9. the thin bar boring cutter in any one of -8 according to claim 1, it is characterised in that: lathe interconnecting piece, transition part and blade
It is interference connection between interconnecting piece, is respectively equipped with straight grain circle and twill circle on the outer surface of transition part axial ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351488.0A CN110385449A (en) | 2018-04-19 | 2018-04-19 | A kind of thin bar boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351488.0A CN110385449A (en) | 2018-04-19 | 2018-04-19 | A kind of thin bar boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110385449A true CN110385449A (en) | 2019-10-29 |
Family
ID=68283348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810351488.0A Pending CN110385449A (en) | 2018-04-19 | 2018-04-19 | A kind of thin bar boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110385449A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5261767A (en) * | 1989-06-26 | 1993-11-16 | Mitsubishi Metal Corporation | Boring bar tool |
| US20070089574A1 (en) * | 2003-11-26 | 2007-04-26 | Daisuke Murakami | Vibration suppressing cutting tool |
| CN200954552Y (en) * | 2006-09-22 | 2007-10-03 | 中国石油化工股份有限公司 | Anticollision boring turning-cutter |
| CN102233441A (en) * | 2011-04-13 | 2011-11-09 | 中北大学 | Continuous automatic inner-chip removal deep-hole inner-reaming cutter based on spray-absorption mechanism |
| KR101141454B1 (en) * | 2011-07-12 | 2012-05-04 | 주식회사 맥스로텍 | The combination structure of piercing head |
| CN208230873U (en) * | 2018-04-19 | 2018-12-14 | 苏州钰创工业新材料有限公司 | A kind of thin bar boring cutter |
-
2018
- 2018-04-19 CN CN201810351488.0A patent/CN110385449A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5261767A (en) * | 1989-06-26 | 1993-11-16 | Mitsubishi Metal Corporation | Boring bar tool |
| US20070089574A1 (en) * | 2003-11-26 | 2007-04-26 | Daisuke Murakami | Vibration suppressing cutting tool |
| CN200954552Y (en) * | 2006-09-22 | 2007-10-03 | 中国石油化工股份有限公司 | Anticollision boring turning-cutter |
| CN102233441A (en) * | 2011-04-13 | 2011-11-09 | 中北大学 | Continuous automatic inner-chip removal deep-hole inner-reaming cutter based on spray-absorption mechanism |
| KR101141454B1 (en) * | 2011-07-12 | 2012-05-04 | 주식회사 맥스로텍 | The combination structure of piercing head |
| CN208230873U (en) * | 2018-04-19 | 2018-12-14 | 苏州钰创工业新材料有限公司 | A kind of thin bar boring cutter |
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