JP2001162420A - Diamond tool - Google Patents
Diamond toolInfo
- Publication number
- JP2001162420A JP2001162420A JP37656199A JP37656199A JP2001162420A JP 2001162420 A JP2001162420 A JP 2001162420A JP 37656199 A JP37656199 A JP 37656199A JP 37656199 A JP37656199 A JP 37656199A JP 2001162420 A JP2001162420 A JP 2001162420A
- Authority
- JP
- Japan
- Prior art keywords
- tool
- cutting edge
- processing
- corner
- angle
- 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.)
- Granted
Links
- 229910003460 diamond Inorganic materials 0.000 title claims description 30
- 239000010432 diamond Substances 0.000 title claims description 30
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 13
- 239000006061 abrasive grain Substances 0.000 description 9
- 238000005553 drilling Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- -1 cemented carbide Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、治具研削盤、グ
ラインディングセンタ、汎用・専用研削盤など各種の工
作機械による、超硬合金、ガラス、セラミックス等の硬
脆材料の加工に用いる円柱状のダイヤモンド工具の改良
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical shape used for processing hard and brittle materials such as cemented carbide, glass, and ceramics by various machine tools such as a jig grinder, a grinding center, and a general-purpose / dedicated grinder. The improvement of diamond tools.
【０００２】[0002]
【従来の技術】硬脆材料の加工に当たってダイヤモンド
工具が使用されている。このダイヤモンド工具は、一般
に円柱状又は円筒状の本体（台金）に、接着剤を介して
又は電着によりダイヤモンド砥粒が接着されて形成され
ている。2. Description of the Related Art Diamond tools are used for processing hard and brittle materials. This diamond tool is formed by bonding diamond abrasive grains to a generally cylindrical or cylindrical main body (base metal) via an adhesive or by electrodeposition.
【０００３】[0003]
【発明が解決しようとする課題】このようなダイヤモン
ド工具による側面加工では、加工液が加工点に効率よく
供給されないため、冷却・潤滑不足により加工速度を上
げられない、或いは工具寿命が低下するといった不具合
が発生している。又、ダイヤモンド工具に遊星運動を与
えた穴あけ加工に於いては、工具コーナ部のダイヤモン
ド砥粒の負荷が大きくなり、砥粒の脱落や磨耗による工
具寿命の低下を招く。そのうえ、工具底面部では加工屑
の排出が十分に行われないため、加工屑がダイヤモンド
砥粒の間に詰まってしまい、加工を継続できない不具合
が発生する。In such side machining with a diamond tool, since the machining fluid is not efficiently supplied to the machining point, the machining speed cannot be increased due to insufficient cooling and lubrication, or the tool life is shortened. A problem has occurred. Also, in the drilling process in which a diamond tool is given a planetary motion, the load of the diamond abrasive grains at the tool corner becomes large, and the tool life is shortened due to falling off and wear of the abrasive grains. In addition, since the machining chips are not sufficiently discharged from the bottom surface of the tool, the machining chips are clogged between the diamond abrasive grains, which causes a problem that machining cannot be continued.
【０００４】この発明が解決しようとする課題は、硬脆
材料の加工で、一次元、又は二次元の側面加工、三次元
形状加工、及び穴あけ加工に於ける加工能率の向上と工
具寿命の延長を図ることにある。The problem to be solved by the present invention is to improve the machining efficiency and extend the tool life in one-dimensional or two-dimensional side processing, three-dimensional shape processing, and drilling in hard brittle material processing. It is to plan.
【０００５】[0005]
【課題を解決するための手段】この発明は、円柱状の工
具本体が、外周部に０〜４５°のねじれ角と、０〜＋５
°のすくい角と、５°〜１０°の外周逃げ角と、３ｍｍ
〜５ｍｍのマージン幅とを有する外周切れ刃、コーナ部
分にコーナ半径Ｒ＝１ｍｍ〜３ｍｍのコーナ切れ刃、底
部に０〜＋５°のすくい角と、５°〜１０°の逃げ角
と、２ｍｍ〜４ｍｍのマージン幅とを有する底部切れ刃
から選択される１又は複数の切れ刃を有することに特徴
がある。SUMMARY OF THE INVENTION According to the present invention, a cylindrical tool body is provided with a twist angle of 0 to 45 ° on an outer peripheral portion, and a twist angle of 0 to +5.
Rake angle, 5 ° to 10 ° outer clearance angle, 3mm
An outer peripheral cutting edge having a margin width of ５5 mm, a corner cutting edge with a corner radius R = 1 mm to 3 mm at a corner portion, a rake angle of 0 to + 5 ° at the bottom, a clearance angle of 5 ° to 10 °, and 2 mm to It is characterized by having one or more cutting edges selected from a bottom cutting edge having a margin width of 4 mm.
【０００６】[0006]
【発明の実施の形態】図示例は、いずれも治具研削盤、
グラインディングセンタ、汎用・専用研削盤等の各種の
工作機械による、超硬合金、ガラス、セラミックス等の
硬脆材料の加工に用いられる円柱状のダイヤモンド工具
を示す。BEST MODE FOR CARRYING OUT THE INVENTION The illustrated examples are all jig grinders,
This shows a cylindrical diamond tool used for processing hard and brittle materials such as cemented carbides, glass, and ceramics by various machine tools such as grinding centers and general-purpose / dedicated grinding machines.
【０００７】まず、図１及び図２に於いて、１は工具本
体、２は工具軸で、工具本体を工作機械のスピンドルに
着脱自在に取付けるものである。３は工具の外周に設け
られた外周切れ刃、４はダイヤモンド砥粒で、公知の接
着剤を介して、又は電着により工具本体及び外周刃に接
着されている。５は工具軸２に連通して工具本体底部に
開口する供給穴で、工具軸２、工具本体１の中心軸に設
けられ、冷却・潤滑のための加工液がこの供給穴を通っ
て供給される。First, in FIGS. 1 and 2, 1 is a tool main body, 2 is a tool shaft, and the tool main body is detachably attached to a spindle of a machine tool. Reference numeral 3 denotes an outer peripheral cutting edge provided on the outer periphery of the tool, and 4 denotes diamond abrasive grains, which are bonded to the tool main body and the outer peripheral blade via a known adhesive or by electrodeposition. Reference numeral 5 denotes a supply hole communicating with the tool shaft 2 and opening at the bottom of the tool main body. The supply hole 5 is provided on the center shaft of the tool shaft 2 and the tool main body 1, and a machining fluid for cooling and lubrication is supplied through the supply hole. You.
【０００８】この外周切れ刃３は、図３に示すように、
０〜４５°のねじれ角、０〜＋５°のすくい角、５°〜
１０°の外周逃げ角、及び３ｍｍ〜５ｍｍのマージン幅
を有する。なお、逃げ面幅を５ｍｍ以上とる。これらの
数値及び以下の数値は経験値である。６はチップポケッ
トで、外周切れ刃を設けたことにより形成される。[0008] As shown in FIG.
0 to 45 ° twist angle, 0 to + 5 ° rake angle, 5 ° to
It has an outer clearance angle of 10 ° and a margin width of 3 mm to 5 mm. The flank width is 5 mm or more. These and the following figures are empirical values. Reference numeral 6 denotes a chip pocket formed by providing an outer peripheral cutting edge.
【０００９】外周切れ刃３を設けることにより、側面加
工に於いて、ダイヤモンド砥粒４と外周刃の切れ刃形状
が相まって、加工負担が低減されるうえ、チップポケッ
ト６が確保されることで加工屑の排出が容易になる。
又、工具外部から供給される加工液が、図４で示すよう
に、外周刃のすくい面に、より効果的に加工点に供給さ
れる。By providing the outer peripheral cutting edge 3, in the side surface processing, the diamond abrasive grains 4 and the cutting edge shape of the outer peripheral blade are combined to reduce the processing load and secure the chip pocket 6 to perform the processing. Discharge of waste becomes easy.
In addition, as shown in FIG. 4, the machining fluid supplied from outside the tool is more effectively supplied to the rake face of the outer peripheral edge to the machining point.
【００１０】図５及び図６は、前記外周切れ刃３を設け
た工具本体１のコーナ部分（下端外周部）に、コーナ半
径Ｒ＝１ｍｍ〜３ｍｍのコーナ切れ刃７を設けた例を示
す。コーナ切れ刃を設けることによって、従来大きかっ
たコーナ部分の負担が分散されるため、砥粒単位の負担
が低減し、砥粒の脱落、磨耗が少なくなる。なお、図４
の例でも前記加工液の供給穴５を設けることもできる。FIGS. 5 and 6 show an example in which a corner cutting edge 7 having a corner radius R = 1 mm to 3 mm is provided at a corner portion (a lower end outer peripheral portion) of the tool main body 1 provided with the outer peripheral cutting edge 3. By providing the corner cutting edge, the load on the corner portion, which has been conventionally large, is dispersed, so that the load per abrasive grain is reduced, and the drop and wear of the abrasive grains are reduced. FIG.
In the example described above, the supply hole 5 for the working fluid may be provided.
【００１１】図７及び図８は、図４の工具本体１の底部
に底部切れ刃８を設けた例を示す。この底部切れ刃８
は、０〜＋５°のすくい角、５°〜１０°の逃げ角、２
ｍｍ〜４ｍｍのマージン幅を有する。底部切れ刃８を設
けることによって、チップポケット６が確保されて加工
屑の排出が容易になり、さらに加工液を供給穴５から供
給することで、工具本体１の底面部に於ける加工屑の目
詰まりが減少する。FIGS. 7 and 8 show an example in which a bottom cutting edge 8 is provided at the bottom of the tool body 1 of FIG. This bottom cutting edge 8
Is a rake angle of 0 to + 5 °, a clearance angle of 5 ° to 10 °, 2
It has a margin width of 4 mm to 4 mm. By providing the bottom cutting edge 8, the chip pocket 6 is ensured and the discharge of the processing chips is facilitated. Further, by supplying the processing liquid from the supply hole 5, the processing chips on the bottom of the tool body 1 are removed. Clogging is reduced.
【００１２】なお、工具本体１に、外周切れ刃３、コー
ナ切れ刃７、底部切れ刃８のうちから１の切れ刃のみを
設けてもよく、又、前記切れ刃３、７、８から用途に応
じて選択される２又は３の切れ刃を設けてもよい。例え
ば、外周切れ刃３と底部切れ刃８を設けた場合、側面加
工と穴あけ加工との両加工が可能になる。The tool body 1 may be provided with only one of the outer peripheral cutting edge 3, the corner cutting edge 7, and the bottom cutting edge 8, and the cutting edge 3, 7, 8 2 or 3 cutting edges selected according to the conditions may be provided. For example, when the outer peripheral cutting edge 3 and the bottom cutting edge 8 are provided, both side processing and drilling can be performed.
【００１３】ここで、図１、図２で示す外周切れ刃３を
備えた、本発明のダイヤモンド工具が、超硬合金の側面
加工で、従来の円柱状のダイヤモンド工具に比べて工具
寿命が向上した実例を示す。 工具回転数 １２０００回転／毎分 送り速度 １０００ｍｍ／毎分 軸方向切り込み量 ２０ｍｍ 径方向切り込み量 ０．０５ｍｍ の研削条件で、従来ダイヤモンド工具の寿命研削長さが
３．６ｍであるのに対し、本発明のそれは８ｍであっ
た。Here, the diamond tool of the present invention provided with the outer peripheral cutting edge 3 shown in FIGS. 1 and 2 has a longer tool life than a conventional columnar diamond tool in the side machining of a cemented carbide. Here is a working example. Tool rotation speed 12000 rotations / min Feed rate 1000 mm / min Axial depth of cut 20 mm Radial depth of cut 0.05 mm That of the invention was 8 m.
【００１４】又、図９で示すように、破線であらわす従
来のダイヤモンド工具の４５パス目にあたる抵抗値と、
実線であらわす本発明のダイヤモンド工具の１００パス
目の抵抗値が同じであることから、本発明のダイヤモン
ド工具は、従来のダイヤモンド工具の２倍以上の寿命が
あることが実証されている。Further, as shown in FIG. 9, a resistance value corresponding to the 45th pass of the conventional diamond tool represented by a broken line,
Since the resistance value at the 100th pass of the diamond tool of the present invention represented by the solid line is the same, it has been proved that the diamond tool of the present invention has a service life twice or more that of the conventional diamond tool.
【００１５】次に、図７及び図８で示す、底部切れ刃８
を設けた本発明のダイヤモンド工具と、従来の円柱状の
ダイヤモンド工具との工具寿命の比較を示す。切削条件
は、 工具回転数 １４０００回転／毎分 送り速度 １００ｍｍ／毎分 遊星運動半径 ２ｍｍ 軸方向切り込み量 ０．０５ｍｍ／回転 であり、寿命加工深さは本発明のダイヤモンド工具が１
０ｍｍであるのに対し、従来のダイヤモンド工具は５ｍ
ｍである。この結果、本発明のダイヤモンド工具は従来
のダイヤモンド工具に比べて、２倍の寿命であることが
実証されている。Next, the bottom cutting edge 8 shown in FIGS.
A comparison of the tool life between the diamond tool of the present invention provided with the above and a conventional cylindrical diamond tool is shown. The cutting conditions are as follows: tool rotation speed 14000 rotations / minute feed speed 100 mm / minute planetary movement radius 2 mm axial depth of cut 0.05 mm / rotation
0 mm, whereas the conventional diamond tool is 5 m
m. As a result, it has been proved that the diamond tool of the present invention has twice the life of the conventional diamond tool.
【００１６】[0016]
【発明の効果】硬脆材料の加工で、一次元、又は二次元
の側面加工、三次元形状加工、及び穴あけ加工に於ける
加工能率の向上と工具寿命の延長を図ることができる。According to the present invention, it is possible to improve the processing efficiency and extend the tool life in one-dimensional or two-dimensional side processing, three-dimensional shape processing, and drilling in hard brittle material processing.
【図１】外周切れ刃を設けたダイヤモンド工具の正面図
である。FIG. 1 is a front view of a diamond tool provided with an outer peripheral cutting edge.
【図２】図１の横断面図である。FIG. 2 is a cross-sectional view of FIG.
【図３】図２の要部拡大図である。FIG. 3 is an enlarged view of a main part of FIG. 2;
【図４】加工液を加工点に供給する場合の側面図であ
る。FIG. 4 is a side view in the case where a working fluid is supplied to a working point.
【図５】外周切れ刃とコーナ切れ刃とを設けたダイヤモ
ンド工具の正面図である。FIG. 5 is a front view of a diamond tool provided with an outer peripheral cutting edge and a corner cutting edge.
【図６】コーナ切れ刃を示す要部拡大横断面図である。FIG. 6 is an enlarged cross-sectional view of a main part showing a corner cutting edge.
【図７】底部切れ刃を設けた場合の底面図である。FIG. 7 is a bottom view when a bottom cutting edge is provided.
【図８】底部切れ刃の拡大図である。FIG. 8 is an enlarged view of a bottom cutting edge.
【図９】側面加工に於ける、従来のダイヤモンド工具と
本発明のダイヤモンド工具との寿命を示すグラフであ
る。FIG. 9 is a graph showing the life of the conventional diamond tool and the diamond tool of the present invention in side machining.
１ 工具本体 ３ 外周切れ刃 ４ ダイヤモンド砥粒 ５ 供給穴 ７ コーナ切れ刃 ８ 底部切れ刃 DESCRIPTION OF SYMBOLS 1 Tool main body 3 Outer peripheral cutting edge 4 Diamond abrasive grain 5 Supply hole 7 Corner cutting edge 8 Bottom cutting edge
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大坪 寿 岡山県浅口郡里庄町浜中1160番地 安田工 業株式会社内 (72)発明者 藤本 一也 岡山県浅口郡里庄町浜中1160番地 安田工 業株式会社内 Ｆターム(参考） 3C037 AA02 BB08 BB11 DD06 FF08 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor, Hisashi Otsubo 1160, Hamanaka, Satosho-cho, Asakuchi-gun, Okayama Prefecture Inside Yasuda Kogyo Co., Ltd. Company F term (reference) 3C037 AA02 BB08 BB11 DD06 FF08
Claims (2)
°のねじれ角と、０〜＋５°のすくい角と、５°〜１０
°の外周逃げ角と、３ｍｍ〜５ｍｍのマージン幅とを有
する外周切れ刃、コーナ部分にコーナ半径Ｒ＝１ｍｍ〜
３ｍｍのコーナ切れ刃、底部に０〜＋５°のすくい角
と、５°〜１０°の逃げ角と、２ｍｍ〜４ｍｍのマージ
ン幅とを有する底部切れ刃から選択される１又は複数の
切れ刃を有するダイヤモンド工具。1. A cylindrical tool main body is provided with an outer peripheral portion of 0 to 45.
° torsion angle, 0 to + 5 ° rake angle, 5 ° to 10 °
Outer peripheral cutting edge having an outer clearance angle of 3 ° and a margin width of 3 mm to 5 mm, a corner radius R = 1 mm to a corner portion
One or more cutting edges selected from a bottom cutting edge having a corner cutting edge of 3 mm, a rake angle of 0 to + 5 ° at the bottom, a clearance angle of 5 ° to 10 °, and a margin width of 2 mm to 4 mm. Having diamond tools.
口する冷却・潤滑用の加工液を供給する供給穴が設けら
れている請求項１のダイヤモンド工具。2. The diamond tool according to claim 1, wherein the tool main body is provided with a supply hole for supplying a working fluid for cooling and lubrication, which is opened to the bottom in communication with the tool shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37656199A JP3664930B2 (en) | 1999-12-10 | 1999-12-10 | Diamond tools for processing hard and brittle materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP37656199A JP3664930B2 (en) | 1999-12-10 | 1999-12-10 | Diamond tools for processing hard and brittle materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001162420A true JP2001162420A (en) | 2001-06-19 |
| JP3664930B2 JP3664930B2 (en) | 2005-06-29 |
Family
ID=18507353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP37656199A Expired - Lifetime JP3664930B2 (en) | 1999-12-10 | 1999-12-10 | Diamond tools for processing hard and brittle materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3664930B2 (en) |
-
1999
- 1999-12-10 JP JP37656199A patent/JP3664930B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3664930B2 (en) | 2005-06-29 |
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