CN105312598A - Internal spiral boring cutter - Google Patents
Internal spiral boring cutter Download PDFInfo
- Publication number
- CN105312598A CN105312598A CN201410371072.7A CN201410371072A CN105312598A CN 105312598 A CN105312598 A CN 105312598A CN 201410371072 A CN201410371072 A CN 201410371072A CN 105312598 A CN105312598 A CN 105312598A
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- China
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- cutter head
- cutting edge
- cutter
- knife bar
- boring cutter
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Abstract
The invention discloses an internal spiral boring cutter. The internal spiral boring cutter comprises a cutter bar and a cutter head connected with the cutter bar, wherein the cutter bar and the cutter head are formed integrally, a step which is connected with the cutter bar and has a trapezoidal axial section is arranged at the back end of the cutter head, the upper end of the cutter head is flush with the upper end of the cutter bar, a half-round transitional slope is arranged at the front part of the cutter head, a cutting part is arranged at the lower part of the front end of the cutter head, and a chamfer is arranged at the upper part of the front end of the cutter head. The internal spiral boring cutter is simple in structure, wide in application range, applicable to machining of internal threads of workpieces, high in machining efficiency and good in stability. The transitional slope is beneficial to chip removal, increases the cutting speed and improves the quality of machined surfaces. The chamfer arranged at the front end of the cutter head is beneficial to entrance of the cutter head and cutter setting.
Description
Technical field
The present invention relates to a kind of boring cutter, particularly relate to a kind of inside spin boring cutter.
Background technology
In machining, cutter is the indispensable critical piece of machine tooling, and the quality of cutter quality has influence on the service life of self, also has influence on quality and the production efficiency of machining.Although the special hole boring cutter of lathe is also a lot, have special auxiliary body, its complicated structure, manufacture efficiency low, stability is not good.
Summary of the invention
The present invention, in order to overcome the deficiency of above-mentioned technical problem, provides a kind of inside spin boring cutter, can solve the problems of the technologies described above completely.
The technical scheme solved the problems of the technologies described above is as follows:
A kind of inside spin boring cutter, the cutter head comprising knife bar and be connected with knife bar, described knife bar and cutter head one-body molded, it is trapezoidal step that described cutter head rear end is provided with the axial cross section be connected with knife bar, the upper end of described cutter head is mutually neat with the upper end of knife bar, the front portion of described cutter head arranges half rounded transitional inclined-plane, and described cutter head front lower portion arranges cutting portion, and the top of described cutter head front end is provided with chamfering.
Described cutting portion comprises the first cutting edge, the second cutting edge and the 3rd cutting edge, the angle of the first described cutting edge and the vertical line of axis is 27 °, the angle of the 3rd described cutting edge and the vertical line of axis is 7 °, and the second described cutting edge is parallel with knife bar.
The length of the second described cutting edge is 0.43mm.
The lower end of the 3rd described cutting edge is 1.55mm to the vertical height of cutter head end.
The base of described intermediate incline is 7mm to the axial length of cutter head front end.
The second described cutting edge is 6mm to cutter head upper end vertical range.
The lower end of described chamfering is 5.67mm to the vertical range of the second cutting edge.
Structure of the present invention is simple, and applied widely, for the internal thread of processing work, working (machining) efficiency is high, good stability.Intermediate incline is conducive to chip removal, accelerates cutting speed, improves the quality of finished surface.The chamfering that the front end of cutter head is arranged utilizes cutter head entrance and tool setting.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structural representation of the present invention;
In figure: 1 is knife bar, 2 is cutter head, 3 is step, 4 is intermediate incline, 5 is cutting portion, 6 is chamfering, 7 is the first cutting edge, 8 be the second cutting edge and 9 is the 3rd cutting edge, c1 is the angle of the vertical line of the first cutting edge and axis, c2 is the angle of the vertical line of the 3rd cutting edge and axis, c3 is the length of the second cutting edge, c4 is the vertical height of lower end to cutter head end of the 3rd cutting edge, c5 is the axial length of base to cutter head front end of intermediate incline, c6 is that the second cutting edge is to cutter head upper end vertical range, c7 is the vertical range of lower end to the second cutting edge of chamfering.
Detailed description of the invention
A kind of inside spin boring cutter as shown in Figure 1, the cutter head 2 comprising knife bar 1 and be connected with knife bar 1, described knife bar 1 and cutter head 2 one-body molded, it is trapezoidal step 3 that described cutter head 2 rear end is provided with the axial cross section be connected with knife bar 1, the upper end of described cutter head 2 is mutually neat with the upper end of knife bar 1, the front portion of described cutter head arranges half rounded transitional inclined-plane 4, and described cutter head 2 front lower portion arranges cutting portion 5, and the top of described cutter head 2 front end is provided with chamfering 6.Described cutting portion 5 comprises the first cutting edge 7, second cutting edge 8 and the 3rd cutting edge 9, the first described cutting edge 7 is 27 ° with the angle c1 of the vertical line of axis, the 3rd described cutting edge 9 is 7 ° with the angle c2 of the vertical line of axis, and the second described cutting edge 8 is parallel with knife bar 1.The length c3 of the second described cutting edge is 0.43mm.The lower end of the 3rd described cutting edge 9 is 1.55mm to the vertical height c4 of cutter head 2 end.The base of described intermediate incline 4 is 7mm to the axial length c5 of cutter head 2 front end.The second described cutting edge 8 is 6mm to cutter head 2 upper end vertical range c6.The lower end of described chamfering 6 is 5.67mm to the vertical range c7 of the second cutting edge 8.Described tool bit diameter is 3.8mm, and the length of cutter head is 22mm, and knife bar diameter is 8mm, and the overall length of whole boring cutter is 60mm.
Claims (7)
1. an inside spin boring cutter, the cutter head comprising knife bar and be connected with knife bar, described knife bar and cutter head one-body molded, it is characterized in that, it is trapezoidal step that described cutter head rear end is provided with the axial cross section be connected with knife bar, and the upper end of described cutter head and the upper end of knife bar are neat mutually, and the front portion of described cutter head arranges half rounded transitional inclined-plane, described cutter head front lower portion arranges cutting portion, and the top of described cutter head front end is provided with chamfering.
2. a kind of inside spin boring cutter according to claim 1, it is characterized in that, described cutting portion comprises the first cutting edge, the second cutting edge and the 3rd cutting edge, the angle of the first described cutting edge and the vertical line of axis is 27 °, the angle of the 3rd described cutting edge and the vertical line of axis is 7 °, and the second described cutting edge is parallel with knife bar.
3. a kind of inside spin boring cutter according to claim 1, is characterized in that, the length of the second described cutting edge is 0.43mm.
4. a kind of inside spin boring cutter according to claim 1, is characterized in that, the lower end of the 3rd described cutting edge is 1.55mm to the vertical height of cutter head end.
5. a kind of inside spin boring cutter according to claim 1, is characterized in that, the base of described intermediate incline is 7mm to the axial length of cutter head front end.
6. a kind of inside spin boring cutter according to claim 1, is characterized in that, the second described cutting edge is 6mm to cutter head upper end vertical range.
7. a kind of inside spin boring cutter according to claim 1, is characterized in that, the lower end of described chamfering is 5.67mm to the vertical range of the second cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371072.7A CN105312598A (en) | 2014-07-30 | 2014-07-30 | Internal spiral boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371072.7A CN105312598A (en) | 2014-07-30 | 2014-07-30 | Internal spiral boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105312598A true CN105312598A (en) | 2016-02-10 |
Family
ID=55241466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371072.7A Pending CN105312598A (en) | 2014-07-30 | 2014-07-30 | Internal spiral boring cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105312598A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438379A (en) * | 2020-05-18 | 2020-07-24 | 襄阳顺裕铸造有限公司 | Double-end chamfer sword |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106203A (en) * | 1988-10-13 | 1990-04-18 | Sumitomo Electric Ind Ltd | Bore threading tool |
| US5259709A (en) * | 1988-10-24 | 1993-11-09 | Valenite | Grooving or threading tool |
| CN201969973U (en) * | 2011-03-11 | 2011-09-14 | 湖南博云东方粉末冶金有限公司 | Boring cutter integrating drilling, boring, internal thread cutting and air injection and chip removing |
| CN202114363U (en) * | 2011-06-21 | 2012-01-18 | 无锡雨田精密工具有限公司 | Inner bore slotting tool |
| CN102451938A (en) * | 2010-10-22 | 2012-05-16 | 成都四威高科技产业园有限公司 | Numerical milling processing threaded cutter, and processing method thereof |
| CN102837086A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Internal thread milling cutter |
| CN103551612A (en) * | 2013-11-04 | 2014-02-05 | 无锡雨田精密工具有限公司 | Internally threaded turning tool |
| CN203541773U (en) * | 2013-11-05 | 2014-04-16 | 无锡雨田精密工具有限公司 | Special-shaped threading tool |
| CN204262379U (en) * | 2014-07-30 | 2015-04-15 | 常州创伟工具制造有限公司 | A kind of inside spin boring cutter |
-
2014
- 2014-07-30 CN CN201410371072.7A patent/CN105312598A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106203A (en) * | 1988-10-13 | 1990-04-18 | Sumitomo Electric Ind Ltd | Bore threading tool |
| US5259709A (en) * | 1988-10-24 | 1993-11-09 | Valenite | Grooving or threading tool |
| CN102451938A (en) * | 2010-10-22 | 2012-05-16 | 成都四威高科技产业园有限公司 | Numerical milling processing threaded cutter, and processing method thereof |
| CN201969973U (en) * | 2011-03-11 | 2011-09-14 | 湖南博云东方粉末冶金有限公司 | Boring cutter integrating drilling, boring, internal thread cutting and air injection and chip removing |
| CN202114363U (en) * | 2011-06-21 | 2012-01-18 | 无锡雨田精密工具有限公司 | Inner bore slotting tool |
| CN102837086A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Internal thread milling cutter |
| CN103551612A (en) * | 2013-11-04 | 2014-02-05 | 无锡雨田精密工具有限公司 | Internally threaded turning tool |
| CN203541773U (en) * | 2013-11-05 | 2014-04-16 | 无锡雨田精密工具有限公司 | Special-shaped threading tool |
| CN204262379U (en) * | 2014-07-30 | 2015-04-15 | 常州创伟工具制造有限公司 | A kind of inside spin boring cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111438379A (en) * | 2020-05-18 | 2020-07-24 | 襄阳顺裕铸造有限公司 | Double-end chamfer sword |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160210 |