CN104325164A - Boring cutter for machining small-bore shaft sleeve - Google Patents
Boring cutter for machining small-bore shaft sleeve Download PDFInfo
- Publication number
- CN104325164A CN104325164A CN201410599255.4A CN201410599255A CN104325164A CN 104325164 A CN104325164 A CN 104325164A CN 201410599255 A CN201410599255 A CN 201410599255A CN 104325164 A CN104325164 A CN 104325164A
- Authority
- CN
- China
- Prior art keywords
- boring cutter
- cutter bar
- hole
- cutting head
- axle sleeve
- 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
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
Abstract
The invention relates to a boring cutter for machining a small-bore shaft sleeve. The boring cutter comprises a clamping part, a boring cutter bar and a cutting head, wherein one end of the boring cutter bar is connected with the clamping part, the other end of the boring cutter bar is connected with the cutting head, and the section of the boring cutter bar along the width direction is elliptical. According to the boring cutter for machining the small-bore shaft sleeve disclosed by the invention, the rigidity of the boring cutter bar in the ellipse major axis direction can be increased to the maximum extent in a limited machining space, the polarization of the boring cutter bar is reduced, and thus the machining precision is improved.
Description
Technical field
The present invention relates to cutting element, particularly a kind of boring cutter for processing small-bore axle sleeve.
Background technology
Boring cutter is the one of cutting tool for boring, is generally round handle, is usually used in hole machined in boring cutter, reaming, profiling etc.Boring cutter has one or two cutting tip, is to be specifically designed to carry out roughing, semifinishing or accurately machined cutter to existing hole.Boring cutter can use on boring machine, lathe or milling machine.
Bearing is in mechanical transmission course, play parts that are fixing and reduction load coefficient of friction, and bearing holder (housing, cover) is a vitals for rigid bearing.Manufacturing in the process of producing bearing holder (housing, cover), adopting the mode of spreading boring cutter bar to carry out endoporus turning at present.
Hole boring cutter rod is of a great variety, and structure differs from one another, but when processing small-bore (bore is at 25mm-50mm) axle sleeve due to limited space, limits the size of knife bar, therefore proposes higher requirement to the knife bar of boring cutter.As shown in Figure 1, and bearing holder (housing, cover) that diameter less longer for length, its two ends endoporus needs disposable processing, the axiality requirement of guarantee bearing holder (housing, cover) two ends fixing hole.Because bearing holder (housing, cover) length is longer, the size thickness of the boring cutter bar of this bearing holder (housing, cover) of processing is very limited.In the confined space, the arbor stiffness of boring cutter bar needs enough large ability to meet processing needs.If the thin column type leaving processing inner hole of shaft sleeve surplus selected by knife bar, then knife bar is carefully grown.Because arbor stiffness is poor, easily cause polarization phenomena in work, point of a knife cannot precise alignment, and cause the aperture size deviation of processing large, cause inner bore surface roughness poor, axle sleeve two ends coaxiality of inner hole does not reach requirement, thus affects the performance of axle sleeve simultaneously.The polarization phenomena that long knife bar causes is more obvious.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of boring cutter for processing small-bore axle sleeve that can improve machining accuracy.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is:
For processing a stock boring cutter for small-bore axle sleeve, comprise clamping part, boring cutter bar and cutting head, one end of described boring cutter bar is connected with clamping part, and the other end of described boring cutter bar is connected with cutting head, and described boring cutter bar cross section is in the width direction in oval.
Further, one end of described boring cutter bar is provided with advanced, and described advanced is the projection arranged along boring cutter bar side face, and described advanced is connected with clamping part.
Further, the other end of described boring cutter bar is provided with through hole in the width direction, and the other end of described boring cutter bar is provided with fixing hole along its length, and described fixing hole communicates with through hole and arranges, described cutting head is inserted in through hole, and described cutting head is fixed with screw by fixing hole.
Further, described fixing hole is blind hole.
Further, described through hole is positioned at the below of described ellipse short shaft, and the described oval center of circle is positioned on the periphery of described through hole.
Further, described clamping part is cylindrical, and described transverse is less than the diameter of described clamping part.
Beneficial effect of the present invention is: adopt the boring cutter bar of cross section in the width direction in ellipse, in process, boring cutter cutting force direction is parallel with described transverse direction, relative to column type knife bar, cross section can increase to maximum intensity rigidity and the moment of inertia in boring cutter bar transverse direction in oval boring cutter bar in limited processing space, reduce the polarization of boring cutter bar, and then improve machining accuracy.
Accompanying drawing explanation
Fig. 1 is the sectional view of the to be processed small-bore axle sleeve of the embodiment of the present invention;
Fig. 2 is the front view of the boring cutter for processing small-bore axle sleeve of the embodiment of the present invention;
Fig. 3 is the side view of the boring cutter for processing small-bore axle sleeve of the embodiment of the present invention.
Label declaration:
1, clamping part; 2, boring cutter bar; 21, advanced; 211, protruding; 3, through hole; 4, fixing hole.
Detailed description of the invention
By describing technology contents of the present invention in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with embodiment.
The design of most critical of the present invention is: by designing the boring cutter bar of oval cross section to reduce the polarization of boring cutter bar, reach the beneficial effect improving boring cutter machining accuracy.
Please refer to Fig. 2 and Fig. 3, boring cutter for processing small-bore axle sleeve of the present invention, comprises clamping part 1, boring cutter bar 2 and cutting head, and one end of described boring cutter bar 2 is connected with clamping part 1, the other end of described boring cutter bar 2 is connected with cutting head, and described boring cutter bar 2 cross section is in the width direction in oval.
From foregoing description, beneficial effect of the present invention is: adopt the boring cutter bar of cross section in the width direction in ellipse, in process, boring cutter cutting force direction is parallel with described transverse direction, relative to column type knife bar, cross section can increase to maximum intensity rigidity and the moment of inertia in boring cutter bar transverse direction in oval boring cutter bar in limited processing space, reduces the polarization of boring cutter bar, and then improves machining accuracy.
Further, one end of described boring cutter bar 2 is provided with advanced 21, and described advanced 21 is the projection arranged along boring cutter bar 2 side face, and described advanced 21 is connected with clamping part 1.
Seen from the above description, because cutting head is fixed on the other end of boring cutter bar, the moment that the stressed rear boring cutter bar one end of cutting head is born is maximum, therefore arrange advanced in one end of boring cutter bar and can strengthen (intensity herein, the born moment at the position that boring cutter bar is connected with clamping part becomes large, thus make the large by force intensity change of the entirety of boring cutter bar, and then the cutting head being arranged in the boring cutter bar other end not easily polarization is occurring to the process of workpiece to be processed, reaching the workpiece that machining accuracy improves.
Further, it is trapezoidal projection 211 that described advanced 21 one end near cutting head is provided with longitudinal section, and described trapezoidal top margin is equal with the major axis of described ellipse and arrange near cutting head direction.
Seen from the above description, arranging of described projection can be placed in working angles, effectively avoids the rigid collision of workpiece to be cut and boring cutter bar.
Further, the other end of described boring cutter bar 2 is provided with through hole 3 in the width direction, and the other end of described boring cutter bar 2 is provided with fixing hole 4 along its length, and described fixing hole 4 communicates with through hole 3 and arranges, described cutting head is inserted in through hole 3, and described cutting head is fixed with screw by fixing hole 4.
Seen from the above description, the present embodiment make cutting head be fixed on the other end of boring cutter bar for the boring cutter processing small-bore axle sleeve by the cooperation of through hole and fixing hole, simultaneously can adjust in the degree of depth of fixing hole the length that cutting head stretch out boring cutter bar side face by adjustment cutting head.
Further, described through hole 3 is positioned at the below of described ellipse short shaft, and the described oval center of circle is positioned on the periphery of described through hole 3.
Seen from the above description, said structure design can the position of the accurate cutting head of more convenient adjustment, improves cutting speed.
Further, described clamping part 1 is square column, and described transverse is less than the length of side of described square column.
Seen from the above description, clamping part can do squarely, is convenient to clamping.
In sum, the boring cutter for processing small-bore axle sleeve provided by the invention, can increase to maximum intensity the rigidity in boring cutter bar transverse direction in limited processing space, reduces the polarization of boring cutter bar, and then improves machining accuracy.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing description of the present invention and accompanying drawing content to do, or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. one kind for processing the boring cutter of small-bore axle sleeve, comprise clamping part, boring cutter bar and cutting head, one end of described boring cutter bar is connected with clamping part, and the other end of described boring cutter bar is connected with cutting head, it is characterized in that, described boring cutter bar cross section is in the width direction in oval.
2. the boring cutter for processing small-bore axle sleeve according to claim 1, is characterized in that, one end of described boring cutter bar is provided with advanced, and described advanced is the projection arranged along boring cutter bar side face, and described advanced is connected with clamping part.
3. the boring cutter for processing small-bore axle sleeve according to claim 2, it is characterized in that, it is trapezoidal projection that described advanced one end near cutting head is provided with longitudinal section, and described trapezoidal top margin and close cutting head direction equal with the major axis of described ellipse is arranged.
4. the boring cutter for processing small-bore axle sleeve according to claim 1, it is characterized in that, the other end of described boring cutter bar is provided with through hole in the width direction, the other end of described boring cutter bar is provided with fixing hole along its length, described fixing hole communicates with through hole and arranges, described cutting head is inserted in through hole, and described cutting head is fixed with screw by fixing hole.
5. the boring cutter for processing small-bore axle sleeve according to claim 4, is characterized in that, described fixing hole is blind hole.
6. the boring cutter for processing small-bore axle sleeve according to claim 4, is characterized in that, described through hole is positioned at below the described oval center of circle, and the described oval center of circle is positioned on the periphery of described through hole.
7. the boring cutter for processing small-bore axle sleeve according to claim 1, is characterized in that, described clamping part is square column, and described transverse is less than the length of side of described square column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410599255.4A CN104325164A (en) | 2014-10-30 | 2014-10-30 | Boring cutter for machining small-bore shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410599255.4A CN104325164A (en) | 2014-10-30 | 2014-10-30 | Boring cutter for machining small-bore shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104325164A true CN104325164A (en) | 2015-02-04 |
Family
ID=52400035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410599255.4A Pending CN104325164A (en) | 2014-10-30 | 2014-10-30 | Boring cutter for machining small-bore shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104325164A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091249A (en) * | 2020-09-04 | 2020-12-18 | 松源机械制造有限公司 | Bottle blank injection molding model machining tool and model machining method thereof |
| CN112932180A (en) * | 2019-11-26 | 2021-06-11 | 明门(中国)幼童用品有限公司 | Pipe fitting for supporting frame of child carrier, supporting frame and child carrier |
| CN112932182A (en) * | 2019-11-26 | 2021-06-11 | 明门(中国)幼童用品有限公司 | Pipe fitting for supporting frame of child carrier, folding supporting frame and child carrier |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4945792A (en) * | 1988-01-21 | 1990-08-07 | Cameron Iron Works Usa, Inc. | Boring tool for machining the interior of narrow neck casing |
| CN201848549U (en) * | 2010-09-27 | 2011-06-01 | 天津菱云刀具设计有限公司 | Multi-blade boring bar |
| CN202129465U (en) * | 2011-04-08 | 2012-02-01 | 成都特威特数控刀具有限公司 | Valve core back boring cutter |
| EP1918049B1 (en) * | 2006-10-30 | 2012-10-17 | Wieland Anlagentechnik GmbH | Method for boring workpieces with a machine |
| CN202701419U (en) * | 2012-06-29 | 2013-01-30 | 中国石油集团石油管工程技术研究院 | Off-axis turning tool rod for boring |
| CN203292515U (en) * | 2013-02-28 | 2013-11-20 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Boring cutter bar |
| CN204276931U (en) * | 2014-10-30 | 2015-04-22 | 永安市金声机械有限公司 | A kind of boring cutter for processing small-bore axle sleeve |
-
2014
- 2014-10-30 CN CN201410599255.4A patent/CN104325164A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4945792A (en) * | 1988-01-21 | 1990-08-07 | Cameron Iron Works Usa, Inc. | Boring tool for machining the interior of narrow neck casing |
| EP1918049B1 (en) * | 2006-10-30 | 2012-10-17 | Wieland Anlagentechnik GmbH | Method for boring workpieces with a machine |
| CN201848549U (en) * | 2010-09-27 | 2011-06-01 | 天津菱云刀具设计有限公司 | Multi-blade boring bar |
| CN202129465U (en) * | 2011-04-08 | 2012-02-01 | 成都特威特数控刀具有限公司 | Valve core back boring cutter |
| CN202701419U (en) * | 2012-06-29 | 2013-01-30 | 中国石油集团石油管工程技术研究院 | Off-axis turning tool rod for boring |
| CN203292515U (en) * | 2013-02-28 | 2013-11-20 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Boring cutter bar |
| CN204276931U (en) * | 2014-10-30 | 2015-04-22 | 永安市金声机械有限公司 | A kind of boring cutter for processing small-bore axle sleeve |
Non-Patent Citations (1)
| Title |
|---|
| 周昌锐等: "《简明镗工手册》", 30 November 1989, 上海科学技术出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932180A (en) * | 2019-11-26 | 2021-06-11 | 明门(中国)幼童用品有限公司 | Pipe fitting for supporting frame of child carrier, supporting frame and child carrier |
| CN112932182A (en) * | 2019-11-26 | 2021-06-11 | 明门(中国)幼童用品有限公司 | Pipe fitting for supporting frame of child carrier, folding supporting frame and child carrier |
| CN112091249A (en) * | 2020-09-04 | 2020-12-18 | 松源机械制造有限公司 | Bottle blank injection molding model machining tool and model machining method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150204 |