JP2980931B2 - Super Abrasive Honing Wheel - Google Patents
Super Abrasive Honing WheelInfo
- Publication number
- JP2980931B2 JP2980931B2 JP2078545A JP7854590A JP2980931B2 JP 2980931 B2 JP2980931 B2 JP 2980931B2 JP 2078545 A JP2078545 A JP 2078545A JP 7854590 A JP7854590 A JP 7854590A JP 2980931 B2 JP2980931 B2 JP 2980931B2
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- honing
- grindstone
- wheel
- plate
- 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 - Fee Related
Links
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、研削切粉の排出及び研削液の供給を向上さ
せた超砥粒ホーニング砥石の構造に関する。Description: TECHNICAL FIELD The present invention relates to a structure of a superabrasive honing stone with improved discharge of grinding chips and supply of grinding fluid.
〔従来技術〕 円筒形の内径等を研削加工する方法として、ホーニン
グ加工がある。このホーニング加工は、砥石を使用して
被研削材と一定の面接触状態を保持しつつ、同時に回転
と往復を主体とした運動によって、被研削材の寸法・形
状・表面の修正を能率的に行う精密加工法である。従
来、このホーニング加工に使用される超砥粒砥石は、砥
粒の保持力及び耐摩耗性に優れる点から、第４図に示す
ような、メタルボンドタイプのスティック砥石が一般的
に使用されている。同図において、10はホーニング砥石
であり、11は砥石台である。このホーニング砥石10を取
り付けた砥石台11を第５図に示すように拡張コーン12に
装着し、回転させながら上下動させることにより、被研
削材13の内面を研削する。[Prior Art] Honing is known as a method of grinding a cylindrical inner diameter or the like. This honing process uses a grindstone to maintain a constant surface contact with the workpiece, and at the same time, efficiently corrects the dimensions, shape, and surface of the workpiece by rotating and reciprocating movement. This is a precision processing method to be performed. Conventionally, a super-abrasive grindstone used in this honing process is generally a metal bond type stick grindstone as shown in FIG. 4 because of its excellent holding power and abrasion resistance. I have. In the figure, reference numeral 10 denotes a honing whetstone, and reference numeral 11 denotes a whetstone stand. As shown in FIG. 5, the grindstone table 11 to which the honing grindstone 10 is attached is mounted on the expansion cone 12 and moved up and down while rotating, thereby grinding the inner surface of the material 13 to be ground.
しかしながら、上記従来のメタルボンドタイプの砥石
は、研削加工時に砥石作用面と被研削材が常に接触して
いるため、砥石作用面に研削液の供給が難しく、かつ、
研削切粉の排出が困難であった。また、要求される作業
条件に最も適した砥石を選定することも難しく、適用で
きる砥石仕様の範囲が狭いという問題があった。また、
メタルボンドタイプの砥石は、構造的に気孔を含まず、
研削作業中に砥石作用面にチップポケットを形成するこ
とが難しいことから、砥石目詰まり，砥石焼け等の問題
点があった。However, in the above-mentioned conventional metal bond type grindstone, since the grinding wheel working surface and the material to be ground are always in contact during grinding, it is difficult to supply a grinding fluid to the grinding wheel working surface, and
It was difficult to discharge grinding chips. In addition, it is difficult to select the most suitable grindstone for the required working conditions, and there is a problem that the range of applicable grindstone specifications is narrow. Also,
Metal bond type whetstone does not contain pores structurally,
Since it is difficult to form a chip pocket on the working surface of the grinding wheel during the grinding operation, there have been problems such as clogging of the grinding wheel and burning of the grinding wheel.
本発明が解決しようとする課題は、超砥粒ホーニング
砥石において、研削切粉の排出，研削液の供給を向上さ
せ、砥石目詰まり，砥石焼け等の問題の生じない砥石の
構造を提供することにある。The problem to be solved by the present invention is to provide a structure of a super-abrasive honing wheel that improves the discharge of grinding chips and the supply of grinding fluid and does not cause problems such as wheel clogging and wheel scorching. It is in.
本発明の超砥粒ホーニング砥石は、複数の板状砥石の
間に研削抵抗が低い軟質結合剤を介在させた板状砥石と
軟質結合剤を交互に積層した構造とし、加工物の切り粉
によって前記軟質結合剤が容易にえぐられて前記複数の
板状砥石の間に溝を形成するとともに、前記交互に積層
した構造を前記軟質結合剤によって包んだことを特徴と
する。The superabrasive honing wheel of the present invention has a structure in which a plate-shaped grindstone and a soft binder in which a soft binder having a low grinding resistance is interposed between a plurality of plate-shaped grindstones are alternately laminated, and the cutting powder of the workpiece is used. The soft binder is easily cut off to form a groove between the plurality of plate-like grindstones, and the alternately laminated structure is wrapped with the soft binder.
この場合、板状砥石の厚さを0.5mm以下とするとより
効果的である。In this case, it is more effective to set the thickness of the plate-shaped grindstone to 0.5 mm or less.
本発明の超砥粒ホーニング砥石は、研削時に板状砥石
間の軟質結合剤が切粉によってえぐられ、切粉がその溝
を伝わって外に排出される。また、この溝を伝わって研
削液が充分に供給される。In the superabrasive grain honing wheel of the present invention, the soft binder between the plate-shaped wheels is removed by the chips during grinding, and the chips are discharged through the grooves. Further, the grinding fluid is sufficiently supplied along the groove.
以下、本発明の超砥粒ホーニング砥石を実施例により
具体的に説明する。Hereinafter, the superabrasive grain honing stone of the present invention will be specifically described with reference to examples.
第１図は本発明実施例の超砥粒ホーニング砥石の平面
図、第２図は同正面図、第３図は第２図のＡ−Ａ断面図
である。FIG. 1 is a plan view of a superabrasive grain honing stone of an embodiment of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a sectional view taken along line AA of FIG.
図において１はホーニング砥石、２は板状の超砥粒砥
石、３は軟質結合剤を示す。In the figure, 1 is a honing grindstone, 2 is a plate-shaped superabrasive grindstone, and 3 is a soft binder.
図に示すように、本実施例では、間隔をおいた複数の
板状の超砥粒砥石２を軟質結合剤３で囲む構造とした。
この超砥粒砥石２は、厚さ0.5mm以下の薄板状が好まし
く、その厚さは砥粒径と研削切粉の大きさに依存する。
砥粒径が小さい場合あるいは研削切粉が小さい被研削材
に適用する場合には、厚さを小さくする必要がある。ま
た、超砥粒砥石２の枚数と間隔を変えることであらゆる
寸法に対応可能である。As shown in the drawing, in the present embodiment, a structure is adopted in which a plurality of plate-shaped superabrasive grinding wheels 2 at intervals are surrounded by a soft binder 3.
This superabrasive grindstone 2 is preferably a thin plate having a thickness of 0.5 mm or less, and the thickness depends on the abrasive grain size and the size of the grinding chips.
When the abrasive grain size is small or when applied to a material to be ground having small grinding chips, it is necessary to reduce the thickness. Further, by changing the number and the interval of the superabrasive grindstones 2, it is possible to cope with any size.
軟質結合剤３としては、超砥粒砥石２より摩耗が進行
し易いものであればよく、熱硬化性樹脂，接着剤，軟質
金属等、種々のものが使用できる。なお、この軟質結合
剤３に、砥材入りのレジンボンド，メタルボンド等を使
用することにより、複合積層構造とすることもできる。
また、砥石結合度と砥石枚数を変えることで、多数の異
なる仕様のホーニング砥石１を設計することができる。As the soft binder 3, any material may be used as long as it is easier to wear than the superabrasive grindstone 2, and various materials such as a thermosetting resin, an adhesive, and a soft metal can be used. It should be noted that a composite laminated structure can be obtained by using a resin bond, a metal bond, or the like containing an abrasive material for the soft binder 3.
Further, by changing the degree of grinding wheel coupling and the number of grinding wheels, it is possible to design a large number of honing grinding wheels 1 having different specifications.
ホーニング砥石１を、このような構造としたので、研
削中に超砥粒砥石２間の軟質結合剤３が切粉によってえ
ぐられ、切粉がその溝を伝わり外へ排出される。その結
果、従来のホーニング砥石のように目詰まりすることが
なく安定した切れ味が持続する。また、この溝を伝わっ
て研削液が砥石作用面に充分にいきとどき、砥石焼けが
防止できる。Since the honing grindstone 1 has such a structure, the soft binder 3 between the superabrasive grindstones 2 is cut off by the chips during the grinding, and the chips are transmitted to the outside through the grooves. As a result, stable sharpness is maintained without clogging unlike a conventional honing stone. In addition, the grinding fluid is sufficiently transmitted to the working surface of the grindstone through the groove, so that burning of the grindstone can be prevented.
また、従来のメタルホーニング砥石の場合、剛性が高
いため、被研削材に対する初期馴染みに問題があった
が、弾性を有する軟質結合剤を使用することで初期馴染
みが早くなる。Further, in the case of the conventional metal honing grindstone, the rigidity is high, so that there was a problem in the initial adaptation to the material to be ground, but the initial adaptation becomes faster by using a soft binder having elasticity.
さらに、研削切粉の排出が従来のメタルホーニング砥
石よりも優れるため、切粉によるボンド面のえぐれが少
なく、砥石の研削性能が最大限に発揮できる。そのた
め、従来のメタルホーニング砥石に比べ、仕上げ面粗さ
や真円度等の要求精度に安定性を持ち、かつ、高精度な
研削加工が可能である。また、研削切粉の排出が優れる
ため、ステンレススチール，アルミニウム，真鍮等の延
性材料の研削加工にも適用することができる。Furthermore, since the discharge of the grinding chips is superior to that of the conventional metal honing stone, the chipping of the bond surface due to the chips is small, and the grinding performance of the grinding stone can be maximized. Therefore, compared to the conventional metal honing grindstone, the required precision such as the finished surface roughness and the roundness is more stable, and high precision grinding is possible. In addition, because of excellent discharge of grinding chips, it can be applied to grinding of ductile materials such as stainless steel, aluminum, and brass.
つぎに、本発明のメタルホーニング砥石の使用例を以
下に示す。Next, examples of use of the metal honing stone of the present invention will be described below.
使用例１ 被研削材：ステンレススチール（SUS 303） 孔寸法：直径15mm,長さ60mm 砥石仕様：粗 CB200−30M 仕上げ CB1300−20M 寸法：長さ60mm,幅3mm,高さ3mm 板状超砥粒砥石：厚さ0.3mm,5枚 軟質結合剤：エポキシ系接着剤 の条件で、 面粗度:0.3μRmax 真円度:0.5μｍ であった。Usage example 1 Material to be ground: Stainless steel (SUS 303) Hole dimensions: 15mm in diameter, 60mm in length Whetstone specifications: Coarse CB200-30M Finish CB1300-20M Dimensions: 60mm in length, 3mm in width, 3mm in height Plate-shaped super abrasive Whetstone: thickness 0.3 mm, 5 sheets Under the condition of soft binder: epoxy adhesive, surface roughness: 0.3 μR max roundness: 0.5 μm.
このように、従来のメタルホーニング砥石では面粗度
不良，切れ味不良，ワーク変形大等の問題があったが、
本使用例の砥石では上記のように面粗度0.3μRmax、真
円度0.5μｍと高精度加工が可能である。As described above, the conventional metal honing stone has problems such as poor surface roughness, poor sharpness, and large deformation of the work.
With the grindstone of this usage example, high precision machining is possible with a surface roughness of 0.3 μR max and a roundness of 0.5 μm as described above.
使用例２ 被研削材：アルミニウム合金（A6061P） 孔寸法：直径42mm,長さ80mm 砥石仕様:SD400−60M 寸法：長さ40mm,幅8mm,高さ5mm 板状超砥粒砥石：厚さ0.5mm,7枚 軟質結合剤：エポキシ系接着剤 の条件で、 面粗度:0.8Ra 真円度:1.0μｍ以内 円筒度:1.0μｍ以内 であった。Application example 2 Grinding material: Aluminum alloy (A6061P) Hole size: 42mm in diameter, 80mm in length Grinding stone specification: SD400-60M Dimensions: 40mm in length, 8mm in width, 5mm in height Surface roughness: 0.8 Ra Roundness: within 1.0 μm Cylindricity: within 1.0 μm under the condition of soft binder: epoxy adhesive.
このように、従来のメタルホーニング砥石では砥石表
面にワーク溶着がみられ、研削不可能であったものが、
本使用例の砥石では研削が可能となり上記のような精度
が得られた。In this way, in the conventional metal honing whetstone, workpiece welding was observed on the whetstone surface and grinding was impossible,
With the grindstone of this use example, grinding was enabled, and the above-described accuracy was obtained.
なお、以上の実施例では、ホーニング砥石の構造を第
１図乃至第３図に示した形状のものとしたが、これ以外
にも、砥石作業面積が広く、研削切粉の排出が難しいカ
ップ型の超砥粒ホイールへの応用ができる。In the above embodiment, the structure of the honing grindstone has the shape shown in FIGS. 1 to 3, but in addition to this, a cup-shaped honing wheel has a large work area and is difficult to discharge grinding chips. Can be applied to superabrasive wheels.
本発明の超砥粒ホーニング砥石は、板状砥石と軟質結
合剤の積層構造としたため、研削時における研削切粉の
排出，研削液の供給が良くなり、砥石目詰まり，砥石焼
け等の問題の生じることがない。Since the superabrasive honing wheel of the present invention has a laminated structure of a plate-shaped wheel and a soft binder, the discharge of grinding chips and the supply of a grinding fluid during grinding are improved, and problems such as clogging of the wheel and burning of the wheel can be solved. Will not occur.
第１図は本発明実施例の超砥粒ホーニング砥石の平面
図、第２図は同正面図、第３図は第２図のＡ−Ａ断面図
である。第４図は従来のホーニング砥石を示す斜視図で
あり、第５図はその使用状態の一例を示す図である。 1:ホーニング砥石、2:板状超砥粒砥石 3:軟質結合剤FIG. 1 is a plan view of a superabrasive grain honing stone of an embodiment of the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is a perspective view showing a conventional honing grindstone, and FIG. 5 is a view showing an example of a state of use thereof. 1: Honing whetstone, 2: Plate-shaped superabrasive whetstone 3: Soft binder
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B24D 17/00 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) B24D 17/00
Claims (2)
結合剤を介在させた板状砥石と軟質結合剤を交互に積層
した構造とし、加工物の切り粉によって前記軟質結合剤
が容易にえぐられて前記複数の板状砥石の間に溝を形成
するとともに、前記交互に積層した構造を前記軟質結合
剤によって包んだことを特徴とする超砥粒ホーニング砥
石。1. A structure in which a plate-shaped grinding wheel and a soft binder in which a soft binder having a low grinding resistance is interposed between a plurality of plate-shaped grinding wheels are alternately laminated, and the soft binder is cut by cuttings of a workpiece. A superabrasive honing stone characterized by being easily cut out to form a groove between the plurality of plate-like grindstones and wrapping the alternately laminated structure with the soft binder.
特徴とする請求項１記載の超砥粒ホーニング砥石。2. The super-abrasive grain honing wheel according to claim 1, wherein the thickness of the plate-shaped wheel is 0.5 mm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2078545A JP2980931B2 (en) | 1990-03-26 | 1990-03-26 | Super Abrasive Honing Wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2078545A JP2980931B2 (en) | 1990-03-26 | 1990-03-26 | Super Abrasive Honing Wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03277481A JPH03277481A (en) | 1991-12-09 |
| JP2980931B2 true JP2980931B2 (en) | 1999-11-22 |
Family
ID=13664890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2078545A Expired - Fee Related JP2980931B2 (en) | 1990-03-26 | 1990-03-26 | Super Abrasive Honing Wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2980931B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5786758U (en) * | 1980-11-11 | 1982-05-28 | ||
| JPH01153278A (en) * | 1987-12-09 | 1989-06-15 | F S K:Kk | Grinding stone for super finish |
-
1990
- 1990-03-26 JP JP2078545A patent/JP2980931B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03277481A (en) | 1991-12-09 |
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