JPH0426211Y2 - - Google Patents
Info
- Publication number
- JPH0426211Y2 JPH0426211Y2 JP1987034672U JP3467287U JPH0426211Y2 JP H0426211 Y2 JPH0426211 Y2 JP H0426211Y2 JP 1987034672 U JP1987034672 U JP 1987034672U JP 3467287 U JP3467287 U JP 3467287U JP H0426211 Y2 JPH0426211 Y2 JP H0426211Y2
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- rotary dresser
- superabrasive grains
- grinding
- grains
- 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
Links
- 239000006061 abrasive grain Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000005245 sintering Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
軸方向にトラバースすることによつて、回転す
る研削砥石の研削面をドレツシングするロータリ
ドレツサに関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a rotary dresser that dresses the grinding surface of a rotating grinding wheel by traversing in the axial direction.
ホイール（ロール）の外周面または外周部にダ
イヤモンド砥粒またはCBN砥粒等の超砥粒を保
持させたロータリドレツサは周知である。研削砥
石の種類および研削条件によつて、ロータリドレ
ツサの超砥粒の摩耗程度は異なるが、超砥粒の摩
耗が大きくなれば、研削面を良好にドレツシング
するために、ロータリドレツサ自体を交換する必
要がある。従来のロータリドレツサは第６図のＡ
図のようにホイール１３の外周部１３ａに、また
は、Ｂ図のようにロール１４の外周部１４ａに超
砥粒１５を保持させている。このような従来のロ
ータリドレツサは、超砥粒の粒度が大きい場合
は、超砥粒の摩耗につれ、徐々に研削面のドレツ
シング状態が悪くなり、使用できる限界がある。
また、粒度が小さい場合もロータリドレツサのツ
ールとしての寿命は短く、しかも研削面の良好な
ドレツシングを維持することは困難である。
A rotary dresser in which super abrasive grains such as diamond abrasive grains or CBN abrasive grains are held on the outer peripheral surface or peripheral portion of a wheel (roll) is well known. The degree of wear of the superabrasive grains in the rotary dresser varies depending on the type of grinding wheel and the grinding conditions, but if the wear of the superabrasive grains becomes large, the rotary dresser itself needs to be replaced in order to dress the ground surface well. Needs to be replaced. The conventional rotary dresser is A in Figure 6.
Super abrasive grains 15 are held on the outer circumference 13a of the wheel 13 as shown in the figure, or on the outer circumference 14a of the roll 14 as shown in figure B. In such a conventional rotary dresser, when the particle size of the superabrasive grains is large, the dressing condition of the grinding surface gradually deteriorates as the superabrasive grains wear, and there is a limit to its usability.
Further, when the particle size is small, the life of the rotary dresser as a tool is short, and it is difficult to maintain good dressing of the ground surface.
本考案は、従来技術の欠点を解消し、長寿命の
しかも、研削面を良好にドレツシングすることを
可能にしたロータリドレツサを提供する。
The present invention eliminates the drawbacks of the prior art and provides a rotary dresser that has a long life and can dress the grinding surface well.
本考案は、超砥粒を含む砥粒層がホイールの端
面外周縁部に保持されるとともに、砥粒層の外径
とホイールの外径とがほぼ同一径としたロータリ
ドレツサである。
The present invention is a rotary dresser in which an abrasive layer containing superabrasive grains is held at the outer peripheral edge of the end face of a wheel, and the outer diameter of the abrasive layer and the outer diameter of the wheel are approximately the same.
トラバースすることにより回転する研削砥石５
の研削面５ａをドレツシングする際、ホイール２
の端面外周縁部２ａに保持された超砥粒３のうち
最もホイール２の外周に近い超砥粒３が前記研削
面をドレツシングすることになるが、このドレツ
シング中に、ホイール２の外周部２ｂは、研削砥
石５により研削されたり、研削砥石の砥粒等の層
により削り取られるため、超砥粒３の摩耗、脱落
等につれて、ホイール２の外径は減少して行き、
保持層４も同様に外周から徐々に減少して行くた
め、漸次、新しい超砥粒が露出し前記研削面をド
レツシングすることになる。
Grinding wheel 5 that rotates by traversing
When dressing the grinding surface 5a of the wheel 2
Among the superabrasive grains 3 held on the outer peripheral edge 2a of the end face, the superabrasive grains 3 closest to the outer periphery of the wheel 2 dress the grinding surface. is ground by the grinding wheel 5 or scraped off by a layer of abrasive grains of the grinding wheel, so the outer diameter of the wheel 2 decreases as the superabrasive grains 3 wear, fall off, etc.
Similarly, since the holding layer 4 gradually decreases from the outer periphery, new superabrasive grains are gradually exposed and dress the ground surface.
第１図は、本考案の一実施例を示し、ロータリ
ドレツサ１を組み付けた状態である。６は軸、７
はホイール２を軸６に固定するための取付具であ
り、軸方向に複数個のホイール２を組み合わせ、
その外周は同一円筒に揃えられている。ドレツシ
ング時は、ロータリドレツサ１を回転させながら
軸方向に移動させるか、または、研削砥石が軸方
向に移動することによつてドレツシングが行なわ
れる。第２図は、第１図のホイール２を示し、ホ
イール２の端面外周縁部２ａに超砥粒３を金属粉
末を使用した焼結法や電着法等により砥粒層４を
形成し保持させる。砥粒層４の外径はホイール２
の外径とほぼ同一径に揃えられている。実施例で
は複数個のホイール２を組み合わせているが、単
体のホイール２で構成されるロータリドレツサで
もよい。ロータリドレツサ１のホイール２の外周
部２ｂは、第３図に示す如くドレツシング時に、
研削砥石５の研削面５ａに当接して研削され、ま
た、研削砥石５の砥粒等の屑によつて削り取られ
て、最も外周部２ｂに近い超砥粒３が僅かに露出
し、この超砥粒３によつて研削砥石５の研削面５
ａがドレツシングされ、超砥粒３の摩耗および脱
落につれて、保持層４およびホイール外周部２ｂ
が削られてゆき、漸次に新しい超砥粒３が露出す
るようになつている。このため、研削面５ａは常
に良好なドレツシングが行なわれ、また、ロータ
リドレツサとしてのツール寿命を格段に延ばすこ
とができる。実施例では、超砥粒３を焼結法また
は電着法等により、ホイール２の端面外周縁部２
ａに固着して保持させるようにしているが、焼結
法等によつて超砥粒３を含む砥粒層４を別体とし
て成形し、ホイール２の端面部に挟着させるよう
にしてもよい。第４図は他の実施例を示し、ホイ
ール８の外周部８ｂに環状の溝９を設け、この溝
９の端面部９ａに超砥粒１０を焼結法等によつて
保持させるようにしてもよい。精密研削を行うド
レツシング作業においては、第５図に示す如く、
超砥粒１１の最大摩耗幅Ｌが0.5mm以上になると
研削砥石１２の研削面１２ａの良好なドレツシン
グが困難となるため、比較的早い時期にロータリ
ドレツサの交換を行つていた。本考案の実施例で
は、最大摩耗幅Ｌがほぼ0.3mm以内になるように
超砥粒は＃46〜＃80の粒度を使用している。ま
た、本考案のロータリドレツサ１に使用されるホ
イール２は、研削砥石５によつて砥粒層４と共に
その外周部２ｂを削り取りながらドレツシングさ
れるものであるから、研削条件に合つた被研削性
の良い材料を選定することが必要である。
FIG. 1 shows an embodiment of the present invention, in which a rotary dresser 1 is assembled. 6 is the axis, 7
is a fixture for fixing the wheel 2 to the shaft 6, and it can be used to combine a plurality of wheels 2 in the axial direction,
Its outer periphery is aligned to the same cylinder. During dressing, dressing is performed by rotating the rotary dresser 1 and moving it in the axial direction, or by moving the grinding wheel in the axial direction. FIG. 2 shows the wheel 2 shown in FIG. 1, in which an abrasive grain layer 4 is formed and held on the outer peripheral edge 2a of the end face of the wheel 2 by a sintering method using metal powder, an electrodeposition method, etc. let The outer diameter of the abrasive layer 4 is the same as that of the wheel 2.
The diameter is approximately the same as the outer diameter of the In the embodiment, a plurality of wheels 2 are combined, but a rotary dresser composed of a single wheel 2 may also be used. As shown in FIG. 3, the outer circumferential portion 2b of the wheel 2 of the rotary dresser 1 is
The superabrasive grains 3 closest to the outer circumferential portion 2b are slightly exposed as they are ground by coming into contact with the grinding surface 5a of the grinding wheel 5, and are also scraped off by debris such as abrasive grains of the grinding wheel 5. Grinding surface 5 of grinding wheel 5 by abrasive grains 3
a is dressed, and as the superabrasive grains 3 wear and fall off, the retaining layer 4 and the wheel outer periphery 2b
is being ground away, and new superabrasive grains 3 are gradually exposed. Therefore, the grinding surface 5a is always well dressed, and the life of the tool as a rotary dresser can be greatly extended. In the embodiment, superabrasive grains 3 are applied to the outer peripheral edge 2 of the end surface of the wheel 2 by a sintering method, an electrodeposition method, or the like.
Although the abrasive grain layer 4 containing the superabrasive grains 3 is molded separately by a sintering method or the like, and the abrasive grain layer 4 is formed as a separate body by a sintering method or the like, and the abrasive grain layer 4 is sandwiched between the end surfaces of the wheel 2. good. FIG. 4 shows another embodiment, in which an annular groove 9 is provided in the outer circumference 8b of the wheel 8, and superabrasive grains 10 are held in the end surface 9a of the groove 9 by sintering or the like. Good too. In dressing work that involves precision grinding, as shown in Figure 5,
If the maximum wear width L of the superabrasive grains 11 exceeds 0.5 mm, it becomes difficult to properly dress the grinding surface 12a of the grinding wheel 12, so the rotary dresser was replaced at a relatively early stage. In the embodiment of the present invention, superabrasive grains having a particle size of #46 to #80 are used so that the maximum wear width L is approximately within 0.3 mm. Further, since the wheel 2 used in the rotary dresser 1 of the present invention is dressed by the grinding wheel 5 while scraping off the abrasive grain layer 4 and its outer circumferential portion 2b, the wheel 2 can be dressed to suit the grinding conditions. It is necessary to select materials with good properties.
本考案のロータリドレツサは、比較的製作コス
トが低廉である上、研削面の良好なドレツシング
を維持しながらツールとしての寿命を格段に延ば
すことができるため、ツール交換時間およびツー
ルコストの削減、生産性の向上等、著しい効果が
得られる。
The rotary dresser of the present invention has a relatively low manufacturing cost and can significantly extend the life of the tool while maintaining good dressing of the ground surface, reducing tool replacement time and tool cost. Significant effects such as improved productivity can be obtained.
第１図は、本考案のロータリドレツサを組み付
けた状態図。第２図は、第１図の一部を示す構成
図。第３図は、第１図の要部拡大断面図。第４図
は、他の実施例の要部断面図。第５図は、要部を
拡大断面で示す説明図。第６図のａおよびｂ図は
従来例のロータリドレツサの半断面図。
１……ロータリドレツサ、２……ホイール、２
ａ……端面外周縁部、３……超砥粒。
FIG. 1 is an assembled state diagram of the rotary dresser of the present invention. FIG. 2 is a configuration diagram showing a part of FIG. 1. FIG. 3 is an enlarged sectional view of the main part of FIG. 1. FIG. 4 is a sectional view of a main part of another embodiment. FIG. 5 is an explanatory diagram showing a main part in an enlarged cross section. FIGS. 6A and 6B are half-sectional views of a conventional rotary dresser. 1...Rotary dresser, 2...Wheel, 2
a... Outer peripheral edge of end face, 3... Super abrasive grains.
Claims (1)
する研削砥石の研削面をドレツシングするロー
タリドレツサにおいて、超砥粒を含む砥粒層が
ホイールの端面外周縁部に保持されるととも
に、該砥粒層の外径とホイールの外径とがほぼ
同一径であることを特徴とするロータリドレツ
サ。 (2) 前記ホイールが軸方向に複数個組み合わされ
た実用新案登録請求の範囲第１項記載のロータ
リドレツサ。 (3) 前記超砥粒の粒度は＃46〜＃80である実用新
案登録請求の範囲第１項または第２項記載のロ
ータリドレツサ。[Claims for Utility Model Registration] (1) In a rotary dresser that dresses the grinding surface of a rotating grinding wheel by traversing in the axial direction, an abrasive grain layer containing superabrasive grains is applied to the outer periphery of the end face of the wheel. 1. A rotary dresser, wherein the abrasive layer has an outer diameter that is substantially the same as the outer diameter of the wheel. (2) The rotary dresser according to claim 1, in which a plurality of the wheels are combined in the axial direction. (3) The rotary dresser according to claim 1 or 2, wherein the superabrasive grains have a particle size of #46 to #80.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987034672U JPH0426211Y2 (en) | 1987-03-09 | 1987-03-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987034672U JPH0426211Y2 (en) | 1987-03-09 | 1987-03-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63144163U JPS63144163U (en) | 1988-09-22 |
| JPH0426211Y2 true JPH0426211Y2 (en) | 1992-06-24 |
Family
ID=30843448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987034672U Expired JPH0426211Y2 (en) | 1987-03-09 | 1987-03-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426211Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH052288Y2 (en) * | 1988-03-16 | 1993-01-20 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334193A (en) * | 1976-09-13 | 1978-03-30 | Toyoda Van Moppes Ltd | Traverse type rotary diamond dresser |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50147994U (en) * | 1974-05-23 | 1975-12-08 |
-
1987
- 1987-03-09 JP JP1987034672U patent/JPH0426211Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5334193A (en) * | 1976-09-13 | 1978-03-30 | Toyoda Van Moppes Ltd | Traverse type rotary diamond dresser |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63144163U (en) | 1988-09-22 |
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