JPH0635081B2 - Precision cutting method - Google Patents
Precision cutting methodInfo
- Publication number
- JPH0635081B2 JPH0635081B2 JP8886687A JP8886687A JPH0635081B2 JP H0635081 B2 JPH0635081 B2 JP H0635081B2 JP 8886687 A JP8886687 A JP 8886687A JP 8886687 A JP8886687 A JP 8886687A JP H0635081 B2 JPH0635081 B2 JP H0635081B2
- Authority
- JP
- Japan
- Prior art keywords
- surface roughness
- cutting
- chip
- tip
- processing
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 6
- 230000003746 surface roughness Effects 0.000 claims description 23
- 238000003754 machining Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 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
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
- B23B27/1666—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts clamped by a clamping member acting almost perpendicularly on chip-forming plane
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Machine Tool Units (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、高精度な切削加工を経済的に実現しうる精密
切削方法に関する。TECHNICAL FIELD The present invention relates to a precision cutting method capable of economically realizing highly accurate cutting.
＜従来の技術＞ 高精度な切削加工を実用化するうえでの最も大きな障害
は、工具摩耗に起因した加工コストの上昇である。この
点を旋削加工を例にとって説明する。<Prior Art> The biggest obstacle to putting high-precision cutting into practical use is an increase in machining cost due to tool wear. This point will be described by taking turning as an example.
第４図は丸コマチップを有する工具１を用いて回転する
工作物２を旋削加工する状態を示す説明図、第５図はそ
のＶ−Ｖ線断面図である。このような旋削を続けると丸
コマチップ３の切削関与部であるａ部に摩耗が生じるこ
とになる。従来、このような摩耗により工作物２の加工
面の面粗さが悪化した場合には、チップ３を摩耗したａ
部の長さ以上回動させてａ部を例えば新しいｂ部となる
ようにしていた。なお、この作業は、クランプボルト４
をゆるめてチップ３を回転させた後、再びクランプボル
ト４を締め付けてチップ３を押え金５を介してホルダ６
に固定することにより行われる。そして、チップ３の全
周を使い終るとチップ３を新しいものと交換していた。FIG. 4 is an explanatory view showing a state in which a rotating workpiece 2 is turned using a tool 1 having a round top chip, and FIG. 5 is a sectional view taken along line VV thereof. If such turning is continued, wear will occur in the part a, which is the part involved in cutting, of the round piece 3. Conventionally, when the surface roughness of the machined surface of the workpiece 2 deteriorates due to such abrasion, the tip 3 is abraded.
The part a is turned into a new part b, for example, by rotating the part by more than the length of the part. This work is done with the clamp bolt 4
After loosening and rotating the tip 3, the clamp bolt 4 is tightened again and the tip 3 is pressed through the presser foot 5 to the holder 6
It is done by fixing to. Then, when the entire circumference of the chip 3 was used up, the chip 3 was replaced with a new one.
＜発明が解決しようとする問題点＞ 上述したような加工においては要求される加工精度が高
ければ高い程、チップ３の一ケ所での加工時間を短くす
る必要があるので、チップ３を頻繁に交換しなければな
らなくなる。<Problems to be Solved by the Invention> In the above-described processing, the higher the required processing accuracy is, the shorter the processing time at one location of the chip 3 is. Will have to be replaced.
したがって、高精度加工を行う場合には加工コストが大
幅に上昇してしまい、これが高精度加工実用化の大きな
障害となっていた。Therefore, when high-precision machining is performed, the machining cost increases significantly, which has been a major obstacle to the practical application of high-precision machining.
本発明はこのような事情に鑑み、チップの交換頻度を低
下させて加工コストを大幅に低減する精密切削方法を提
供することを目的とする。In view of such circumstances, an object of the present invention is to provide a precision cutting method that reduces the frequency of exchanging tips and significantly reduces the processing cost.
＜問題点を解決するための手段＞ 本発明者らは前記目的を達成するために種々検討を重ね
た結果、第３図に示すように工作物６を切削してチップ
３の切削関与部であるａ部が摩耗した場合、工作物６の
加工面の面粗さｄに関与するのは切削関与部ａ部のうち
ａ1部のみであり、ａ2部は加工面の面粗さｄには関与し
ないので、面粗さｄが所定値より大きくなったところで
チップ３を図中反時計回りに回動させてａ1部のみを新
しい部分とし、ａ1部は再びａ2部の位置で使用すること
ができることを知見した。<Means for Solving Problems> The inventors of the present invention have conducted various studies in order to achieve the above-mentioned object, and as a result, as shown in FIG. When a part a is worn, only the a 1 part of the cutting-related part a part is involved in the surface roughness d of the machined surface of the workpiece 6, and the a 2 part is related to the surface roughness d of the machined surface. When the surface roughness d becomes larger than a predetermined value, the chip 3 is rotated counterclockwise in the figure to make only a 1 part a new part, and a 1 part is again at the position of a 2 part. It has been found that it can be used.
かかる知見に基づく本発明の構成は、チップを有する工
具を用いて工作物を切削加工してチップの切削関与部が
摩耗したときに該チップを回動して切削関与部を新しい
部分とするに際し、摩耗した切削関与部のうち少なくと
も加工面の面粗さに関与する面粗さ関与部を新しい部分
とし、摩耗した面粗さ関与部を再び面粗さに関与しない
部分で使用することを特徴とする。The configuration of the present invention based on such knowledge is used when a workpiece having a tip is cut and a cutting-related portion of the chip is worn and the cutting-related portion is rotated to form a new portion. It is characterized in that at least the surface roughness related part that contributes to the surface roughness of the machined surface is used as a new part, and the worn surface roughness related part is used again in the part that does not contribute to the surface roughness. And
＜実施例＞ 以下、本発明の好適な一実施例について説明する。<Example> A preferred example of the present invention will be described below.
第１図に示すように、本実施例に使用した工具１は円盤
状のチップ３がボルト４及び押え金５を介してホルダ６
に固定されているものである。この工具１を回転する工
作物２に押し付けながら該工具１を矢印Ｚ方向に移動さ
せて旋削加工を行った。このときの切削関与部はａ部で
あり、加工面２ａの面粗さに関与する面粗さ関与部はａ
1である。As shown in FIG. 1, in the tool 1 used in this embodiment, a disk-shaped tip 3 has a holder 6 through a bolt 4 and a presser foot 5.
It is fixed to. While pressing the tool 1 against the rotating workpiece 2, the tool 1 was moved in the direction of arrow Z for turning. At this time, the cutting-related part is part a, and the surface-roughness-related part related to the surface roughness of the machined surface 2a is a.
Is 1 .
ここで、工作物２の加工面２ａの面粗さがある所定値よ
り大きくなったところで、ボルト４をゆるめてチップ３
を図中反時計回りに面粗さ関与部ａ1に相当する量だけ
回動させ、再びボルト４を締め付け、再び加工を行っ
た。Here, when the surface roughness of the machined surface 2a of the workpiece 2 becomes larger than a predetermined value, the bolt 4 is loosened and the tip 3
Was rotated counterclockwise in the figure by an amount corresponding to the surface roughness-related portion a 1 , the bolt 4 was tightened again, and processing was performed again.
この旋削における加工面２ａの面粗さを測定したとこ
ろ、第２図の結果が得られた。同図中、Ａは新しいチッ
プを用いた加工によるものであり、Ｂは面粗さが所定値
Ｄを越えたところで上述のようにチップ３をａ1部の量
だけ回動させた後の加工によるものである。なお、本実
施例におけるａ1部の長さは２０μｍであり、従来の方
法の場合の１／１０程度であった。When the surface roughness of the machined surface 2a in this turning was measured, the results shown in FIG. 2 were obtained. In the figure, A is the processing using a new chip, and B is the processing after the chip 3 is rotated by the amount of a 1 part as described above when the surface roughness exceeds a predetermined value D. It is due to. The length of part a 1 in this example was 20 μm, which was about 1/10 of that of the conventional method.
第２図に示す結果より明らかなように、新しいチップを
用いた加工による面粗さ(Ａ)と、面粗さ関与部ａ1部を
再使用したときの加工による面粗さ（Ｂ及びＣ）とはほ
ぼ同一であった。したがって、本発明による精密加工方
法によっても従来の方法によって得られる面粗さと同等
なものが得られることが確認された。As is clear from the results shown in FIG. 2, the surface roughness (A) obtained by processing using a new chip and the surface roughness (B and C obtained by processing when the surface roughness-related part a 1 part is reused). ) Was almost the same. Therefore, it was confirmed that the precision processing method according to the present invention can provide surface roughness equivalent to that obtained by the conventional method.
＜発明の効果＞ 以上、実施例とともに具体的に説明したように本発明方
法によると、従来と同等の加工精度を保ちながら、チッ
プの寿命を大幅に向上することができるので、コストを
大幅に低減した精密加工を実現できる。<Effects of the Invention> As described above in detail with reference to the embodiments, according to the method of the present invention, the life of the chip can be significantly improved while maintaining the processing accuracy equivalent to that of the conventional method, and thus the cost can be significantly increased. Reduced precision processing can be realized.
第１図は本発明の一実施例の説明図、第２図は実施例の
試験結果を示すグラフ、第３図はチップ摩耗部と加工さ
れる工作物との関係を示す説明図、第４図及び第５図は
従来の切削方法を説明する平面図及び断面図である。 図面中、 １は工具、 ２は工作物、 ３はチップ、 ａは切削関与部、 ａ1は面粗さ関与部である。FIG. 1 is an explanatory view of an embodiment of the present invention, FIG. 2 is a graph showing test results of the embodiment, FIG. 3 is an explanatory view showing a relationship between a tip wear portion and a workpiece to be processed, and FIG. FIG. 5 and FIG. 5 are a plan view and a sectional view for explaining a conventional cutting method. In the drawings, 1 is a tool, 2 is a workpiece, 3 is a chip, a is a cutting part, and a 1 is a surface roughness part.
Claims (1)
加工してチップの切削関与部が摩耗したときに該チップ
を回動して切削関与部を新しい部分とするに際し、摩耗
した切削関与部のうち少なくとも加工面の面粗さに関与
する面粗さ関与部を新しい部分とし、摩耗した面粗さ関
与部を再び面粗さに関与しない部分で使用することを特
徴とする精密切削方法。1. When a work having a tip is used to cut a workpiece and the cutting-related portion of the chip is worn, the tip is rotated to form a new cutting-related part, and the worn cutting-related part is involved. Precision cutting method, characterized in that at least the surface roughness-related part that is involved in the surface roughness of the machined surface is used as a new part, and the worn surface-roughness-related part is used again in the part that does not contribute to the surface roughness. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8886687A JPH0635081B2 (en) | 1987-04-13 | 1987-04-13 | Precision cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8886687A JPH0635081B2 (en) | 1987-04-13 | 1987-04-13 | Precision cutting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63256323A JPS63256323A (en) | 1988-10-24 |
| JPH0635081B2 true JPH0635081B2 (en) | 1994-05-11 |
Family
ID=13954931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8886687A Expired - Lifetime JPH0635081B2 (en) | 1987-04-13 | 1987-04-13 | Precision cutting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635081B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2702368B2 (en) * | 1992-12-11 | 1998-01-21 | 本田技研工業株式会社 | Drilling tool |
| JP6203864B2 (en) * | 2013-11-27 | 2017-09-27 | 株式会社日立製作所 | Automatic cutting method using a replaceable insert cutting tool |
| WO2021199221A1 (en) * | 2020-03-30 | 2021-10-07 | 国立大学法人東海国立大学機構 | Machining device and cutting method |
-
1987
- 1987-04-13 JP JP8886687A patent/JPH0635081B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63256323A (en) | 1988-10-24 |
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