JP4691231B2 - Gear finishing method - Google Patents
Gear finishing method Download PDFInfo
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- JP4691231B2 JP4691231B2 JP2000146156A JP2000146156A JP4691231B2 JP 4691231 B2 JP4691231 B2 JP 4691231B2 JP 2000146156 A JP2000146156 A JP 2000146156A JP 2000146156 A JP2000146156 A JP 2000146156A JP 4691231 B2 JP4691231 B2 JP 4691231B2
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- gear
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Description
【０００１】
【発明の属する技術分野】
本発明は、歯車の歯面の仕上げや、エッジ部のバリ、かえり、打痕等を除去する歯車の表面仕上げ加工方法に関するものである。
【０００２】
【従来の技術】
従来、歯車の歯面は、在来砥石やＣＢＮ砥石等を用いた研削加工、ホーニング加工、ラッピング等によって仕上げている。なお、歯車のエッジ部のバリ、かえり、打痕等をバニシング加工やデリバリングマシン等を用いて除去することもある。
【０００３】
【発明が解決しようとする課題】
しかし、このような従来の仕上げ加工方法は、小さいモジュールの歯車を仕上げ加工する場合に、加工用工具の制作が困難になる。また、工具コストが高くつき、加工設備も大型かつ高価になるという問題がある。
本発明の課題は、このような状況に鑑み、工具コストの低減と、加工設備の小型化および低廉化を図ることができる歯車の仕上げ加工方法を提供することにある。
【０００４】
【課題を解決するための手段】
本発明は、仕上げ加工すべき製品歯車に繊維強化プラスチックからなる工具歯車をかみ合わせる工程と、前記工具歯車と前記製品歯車を連れ回りさせる工程と、を含み、前記繊維強化プラスチックとして、エポキシ樹脂からなるマトリックスに布状に編んだガラス繊維またはアルミナ繊維を強化材として配合したものを使用する歯車の仕上げ加工方法を提供する。前記強化材は、前記布状に編んだ繊維の面が前記工具歯車の中心軸に直交する形態で配される。
前記製品歯車および工具歯車は、例えば軸心から歯面までの距離が一定である構造を有し、その場合、この製品歯車および工具歯車のいずれかをその軸線に沿って往復動させて、研磨の効率と一様性を向上することができる。
前記工具歯車と前記製品歯車を連れ回りさせる工程は、双方向への連れ回りを含むことができる。
【０００５】
【発明の実施の形態】
以下、図面を参照しながら本発明の実施の形態について説明する。本発明に係る歯車の仕上げ加工方法では、繊維強化プラスチックからなる工具歯車が使用される。
【０００６】
図１は、上記工具歯車の一例を示したものである。この工具歯車１−１は、円筒外歯車形状を有し、エポキシ樹脂からなるマトリックスにガラス繊維を配合した繊維強化プラスチック（Ｇ−ＦＲＰ）によって形成されている。
【０００７】
図２に示すように、上記工具歯車１−１は、仕上げ加工すべき製品歯車２−１（例えば、平歯車）にかみ合わされ、かつ、この製品歯車２−１と連れ回りするように回転駆動される。
このように、工具歯車１と製品歯車２を連れ回りさせれば、この製品歯車２の歯面に対する工具歯車１の接触によって、該歯面をラッピング（歯面研磨）することができる。
【０００８】
すなわち、生材の製品歯車２の歯面には、切り屑等の歯面凝着物が存在しているが、上記工具歯車１は、この歯面凝着物を除去する。また、製品歯車２の歯面には、歯車研削、ホブ切り、シェービング等の切削加工に伴って生じた凹凸（荒れ）や多角形誤差のうねりが存在しているが、上記工具歯車１−１は、上記凹凸やうねりを歯面研磨して上記歯面を円滑にする。
一方、製品歯車２の歯面エッジ部には、歯面側に入り込んだバリ、かえり、打痕等が存在するが、上記工具歯車１−１はこれらも効果的に除去する。
【０００９】
上記工具歯車１−１は、上記円筒外歯車からなる製品歯車２−１とは異なる種類の製品歯車、例えば、図３に示すシャフト付きピニオン歯車２−２や、図４に示す円筒内歯車２−３の仕上げ加工にも有効に適用することができる。
一方、図５に示す直交軸歯車（例えば、カサ歯車）からなる製品歯車２−４を仕上げ加工する場合には、この製品歯車２−４にかみ合いかつ該製品歯車２−４の軸に平行する軸を中心として回転可能な工具歯車１−２を用いる。
【００１０】
図６は、内歯車形状の工具歯車１−３を示している。この工具歯車１−３を用いれば、図示していない外歯車からなる製品歯車に仕上げ加工を施すことができる。
図７は、食い違い軸歯車形状の工具歯車１−４を示している。この工具歯車１−４を用いれば、食い違い軸歯車（例えば、ネジ歯車）からなる製品歯車２−５に仕上げ加工を施すことができる。
【００１１】
なお、上記に例示した工具歯車１−１〜１−４を用いて製品歯車に仕上げ加工を施す場合には、この工具歯車１−１〜１−４を一方向だけでなく、他方向にも連れ回り動作させる。
また、工具歯車１−１〜１−４の形成材料である繊維強化プラスチックは、マトリックスとしてエポキシ樹脂以外の樹脂（例えば、フェノール樹脂、珪素樹脂等）を用いても良く、また、強化材としてガラス繊維以外の繊維（例えば、カーボン、アラミド、ボロン、アルミナ、炭化けい素、金属等の繊維）を用いることができる。
【００１２】
上記工具歯車１−１〜１−４を繊維強化プラスチックで形成する際には、繊維の配列方向を考慮することが望ましい。すなわち、例えば、短繊維を用いる場合には、この繊維を工具歯車の中心軸から歯先に向って放射状に配することが望ましく、また、布状に編んだ繊維を用いる場合には、その布状繊維を含む面が上記中心軸に直交するように配することが望ましい。
【００１３】
ところで、上記実施形態では、工具歯車１と製品歯車２とを連れ回り運動させているが、この連れ回り運動に加えて両歯車１，２の一方をその軸線方向に往復運動させれば、研磨の効率と一様性をより向上することができる。
ただし、上記往復運動は、工具歯車１および製品歯車２が所定の構造を有している場合にのみ、具体的にはその軸心から歯面までの距離が一定である構造を有している場合のみ可能である。この構造を有した歯車には、平歯車、ハスバ歯車、ネジ歯車、内歯車等がある。
なお、上記往復運動のストローク長は、例えば、４〜５ｍｍに設定される。また、上記往復動運は、例えば、毎分３００〜４００回程度の比較的短い周期で繰り返される。
【００１４】
【発明の効果】
本発明によれば、仕上げ加工すべき製品歯車に繊維強化プラスチックからなる工具歯車をかみ合わせ、該工具歯車と前記製品歯車を連れ回りさせることによって該製品歯車に仕上げ加工を施すようにしている。
したがって、製品歯車の歯面に存在する切り屑等の歯面凝着物を除去することができるとともに、歯車研削、ホブ切り、シェービング等の切削加工に伴って生じた凹凸（荒れ）や多角形誤差のうねりをなくして、上記歯面を円滑にすることができる。また、製品歯車の歯面側に入り込んだバリ、かえり、打痕等も効果的に除去することができる。
加えて、小さいモジュールの歯車の仕上げ加工に適用する場合でも、工具を容易に制作することができ、しかも、仕上げ設備が小型かつ低廉で済むという利点がある。
【図面の簡単な説明】
【図１】本発明に係る歯車の仕上げ加工方法に適用する工具歯車の一例を示す側面図。
【図２】、円筒外歯車の仕上げ加工態様を示す断面図。
【図３】シャフト付きピニオン歯車の仕上げ加工態様を示す断面図。
【図４】内歯車の仕上げ加工態様を示す断面図。
【図５】直行軸歯車の仕上げ加工態様を示す断面図。
【図６】内歯車形状の工具歯車を示す側面図。
【図７】食い違い歯車形状の工具歯車を示す側面図。
【符号の説明】
１−１〜１−４ 工具歯車
２−１〜２−５ 製品歯車[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a gear surface finishing method for finishing gear tooth surfaces and removing burrs, burring, dents, and the like at edge portions.
[0002]
[Prior art]
Conventionally, the tooth surface of a gear is finished by grinding, honing, lapping, or the like using a conventional grindstone or CBN grindstone. Note that burrs, burr, dents, and the like at the edge of the gear may be removed using a burnishing process or a delivery machine.
[0003]
[Problems to be solved by the invention]
However, such a conventional finishing method makes it difficult to produce a working tool when finishing a gear of a small module. In addition, there is a problem that the tool cost is high and the processing equipment is large and expensive.
In view of such circumstances, an object of the present invention is to provide a gear finishing method that can reduce tool costs and reduce the size and cost of processing equipment.
[0004]
[Means for Solving the Problems]
The present invention includes a step of meshing a tool gear made of a fiber reinforced plastic with a product gear to be finished, and a step of rotating the tool gear and the product gear, and the fiber reinforced plastic is made of an epoxy resin. There is provided a method for finishing a gear using a matrix prepared by blending glass fibers or alumina fibers knitted into a cloth as a reinforcing material. The reinforcing material is arranged in such a manner that the surface of the fiber knitted in the cloth shape is orthogonal to the central axis of the tool gear.
The product gear and the tool gear have, for example, a structure in which the distance from the shaft center to the tooth surface is constant. In this case, either the product gear or the tool gear is reciprocated along the axis to polish the product gear and the tool gear. Efficiency and uniformity can be improved.
The step of rotating the tool gear and the product gear may include bidirectional rotation.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the gear finishing method according to the present invention, a tool gear made of fiber reinforced plastic is used.
[0006]
FIG. 1 shows an example of the tool gear. This tool gear 1-1 has a cylindrical outer gear shape, and is formed of fiber reinforced plastic (G-FRP) in which glass fibers are blended in a matrix made of epoxy resin.
[0007]
As shown in FIG. 2, the tool gear 1-1 is meshed with a product gear 2-1 (for example, a spur gear) to be finished, and is rotationally driven so as to rotate with the product gear 2-1. Is done.
Thus, if the tool gear 1 and the product gear 2 are rotated, the tooth surface can be lapped (tooth surface polished) by the contact of the tool gear 1 with the tooth surface of the product gear 2.
[0008]
That is, tooth surface adhesions such as chips exist on the tooth surfaces of the raw material product gear 2, but the tool gear 1 removes the tooth surface adhesions. Further, the tooth surface of the product gear 2 has irregularities (roughness) and waviness of polygonal errors caused by cutting such as gear grinding, hobbing, and shaving, but the tool gear 1-1. Smoothens the tooth surface by polishing the surface of the irregularities and undulations.
On the other hand, there are burrs, burr, dents and the like that have entered the tooth surface side at the tooth surface edge portion of the product gear 2, but the tool gear 1-1 effectively removes these.
[0009]
The tool gear 1-1 is a different type of product gear from the product gear 2-1 including the cylindrical outer gear, for example, a pinion gear 2-2 with a shaft shown in FIG. 3, or a cylindrical inner gear 2 shown in FIG. -3 can be effectively applied to finishing processing.
On the other hand, when finishing a product gear 2-4 made of an orthogonal shaft gear (for example, a bevel gear) shown in FIG. 5, it meshes with the product gear 2-4 and is parallel to the axis of the product gear 2-4. A tool gear 1-2 that can rotate about an axis is used.
[0010]
FIG. 6 shows an internal gear-shaped tool gear 1-3. If this tool gear 1-3 is used, it can finish to the product gear which consists of an external gear which is not illustrated.
FIG. 7 shows a tool gear 1-4 having a staggered shaft gear shape. If this tool gear 1-4 is used, it can finish to the product gear 2-5 which consists of a staggered shaft gear (for example, screw gear).
[0011]
In addition, when finishing a product gear using the tool gears 1-1 to 1-4 exemplified above, the tool gears 1-1 to 1-4 are not only in one direction but also in other directions. Move around.
In addition, the fiber reinforced plastic that is a forming material of the tool gears 1-1 to 1-4 may use a resin other than an epoxy resin (for example, phenol resin, silicon resin, etc.) as a matrix, and glass as a reinforcing material. Fibers other than fibers (for example, fibers of carbon, aramid, boron, alumina, silicon carbide, metal, etc.) can be used.
[0012]
When the tool gears 1-1 to 1-4 are formed of fiber reinforced plastic, it is desirable to consider the fiber arrangement direction. That is, for example, when using short fibers, it is desirable to arrange these fibers radially from the central axis of the tool gear toward the tooth tip, and when using fibers knitted in a cloth shape, the cloth It is desirable to arrange so that the surface containing the fibrous fibers is orthogonal to the central axis.
[0013]
By the way, in the above embodiment, the tool gear 1 and the product gear 2 are rotated together. However, if one of the two gears 1 and 2 is reciprocated in the axial direction in addition to the accompanying movement, the polishing is performed. Efficiency and uniformity can be further improved.
However, the reciprocating motion has a structure in which the distance from the axial center to the tooth surface is specifically constant only when the tool gear 1 and the product gear 2 have a predetermined structure. Only possible if. Gears having this structure include spur gears, helical gears, screw gears, internal gears, and the like.
In addition, the stroke length of the said reciprocating motion is set to 4-5 mm, for example. The reciprocating motion is repeated at a relatively short cycle of about 300 to 400 times per minute, for example.
[0014]
【The invention's effect】
According to the present invention, a tool gear made of fiber reinforced plastic is engaged with a product gear to be finished, and the product gear is finished by rotating the tool gear and the product gear together.
Therefore, it is possible to remove tooth surface adherents such as chips on the tooth surface of the product gear, as well as unevenness (roughness) and polygonal errors caused by cutting such as gear grinding, hobbing and shaving. The tooth surface can be made smooth by eliminating the undulation. Further, burrs, burr, dents and the like that have entered the tooth surface side of the product gear can be effectively removed.
In addition, even when applied to the finishing of small module gears, there is an advantage that the tool can be easily produced and the finishing equipment is small and inexpensive.
[Brief description of the drawings]
FIG. 1 is a side view showing an example of a tool gear applied to a gear finishing method according to the present invention.
FIG. 2 is a cross-sectional view showing a finishing process of a cylindrical external gear.
FIG. 3 is a cross-sectional view showing a finishing process of a pinion gear with a shaft.
FIG. 4 is a cross-sectional view showing a finish machining mode of an internal gear.
FIG. 5 is a cross-sectional view showing a finishing mode of a straight shaft gear.
FIG. 6 is a side view showing an internal gear-shaped tool gear.
FIG. 7 is a side view showing a tool gear having a staggered gear shape.
[Explanation of symbols]
1-1 to 1-4 Tool gear 2-1 to 2-5 Product gear
Claims (3)
前記工具歯車と前記製品歯車を連れ回りさせる工程と、を含み、
前記繊維強化プラスチックとして、エポキシ樹脂からなるマトリックスに布状に編んだガラス繊維またはアルミナ繊維を強化材として配合したものを使用し、
前記強化材は、前記布状に編んだ繊維の面が前記工具歯車の中心軸に直交する形態で配されていることを特徴とする歯車の仕上げ加工方法。Meshing a tool gear made of fiber reinforced plastic with the product gear to be finished;
Rotating the tool gear and the product gear together,
As the fiber reinforced plastic, a glass fiber or alumina fiber knitted in a cloth shape in a matrix made of epoxy resin is used as a reinforcing material ,
The method of finishing a gear, wherein the reinforcing material is arranged such that the surface of the fiber knitted in the cloth shape is orthogonal to the central axis of the tool gear .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000146156A JP4691231B2 (en) | 2000-05-18 | 2000-05-18 | Gear finishing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000146156A JP4691231B2 (en) | 2000-05-18 | 2000-05-18 | Gear finishing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001322032A JP2001322032A (en) | 2001-11-20 |
| JP4691231B2 true JP4691231B2 (en) | 2011-06-01 |
Family
ID=18652555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000146156A Expired - Fee Related JP4691231B2 (en) | 2000-05-18 | 2000-05-18 | Gear finishing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4691231B2 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60213417A (en) * | 1984-04-03 | 1985-10-25 | Honda Motor Co Ltd | Gear finishing method |
| JPH07102504B2 (en) * | 1989-03-01 | 1995-11-08 | 新日本製鐵株式会社 | Rotary tool made of inorganic fiber reinforced resin |
| JPH07108513B2 (en) * | 1991-05-23 | 1995-11-22 | 三菱マテリアル株式会社 | Flexible disc whetstone |
| JP2783714B2 (en) * | 1991-11-30 | 1998-08-06 | 日本ジーシー工業株式会社 | Hardened grinding abrasive and manufacturing method |
| JPH06179172A (en) * | 1992-12-14 | 1994-06-28 | Sumitomo Chem Co Ltd | Abrasive abrasive |
| JP3993678B2 (en) * | 1997-12-04 | 2007-10-17 | 株式会社ジーベックテクノロジー | Polishing tool |
| JP2000061852A (en) * | 1998-08-25 | 2000-02-29 | Jiibekku Technology:Kk | Surface finishing material and its method |
-
2000
- 2000-05-18 JP JP2000146156A patent/JP4691231B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001322032A (en) | 2001-11-20 |
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