JPS6316921A - Gear grinding tool - Google Patents
Gear grinding toolInfo
- Publication number
- JPS6316921A JPS6316921A JP15851786A JP15851786A JPS6316921A JP S6316921 A JPS6316921 A JP S6316921A JP 15851786 A JP15851786 A JP 15851786A JP 15851786 A JP15851786 A JP 15851786A JP S6316921 A JPS6316921 A JP S6316921A
- Authority
- JP
- Japan
- Prior art keywords
- tool
- grinding
- tooth surface
- oil
- gear
- 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.)
- Pending
Links
- 239000006061 abrasive grain Substances 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000010730 cutting oil Substances 0.000 abstract 3
- 239000003921 oil Substances 0.000 abstract 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
- B23F21/03—Honing tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
この発明は、歯車形状に形成された歯車研削用工具に係
り、特に、研削油の供給機構の改良に関するものである
。The present invention relates to a gear grinding tool formed in the shape of a gear, and particularly to an improvement in a grinding oil supply mechanism.
工具本体が歯車形状を呈し、被加工物の歯車に噛み合っ
てその歯車の歯面を研削する工具として、従来から知ら
れている歯車研削用工具にあっては、第５図に示すよう
に、鋼製の工具本体６の外周部に歯面１０が構成されて
おり、その歯面１に硬質砥粒が電着等の固定方法により
固着されている。
さらに、上述の工具においてその研削性の向上および寿
命の延長を図るため、第６図に示すように、歯面ｌにセ
レーション式に多数の溝８を形成し、また溝８の縁に而
取りを施すなどして研削時の面圧低下を図るとともに歯
面１への研削油の流れを良くしてその浸入性向上と切粉
の排出性向」−をも図るように工夫されている。As shown in FIG. 5, a conventionally known gear grinding tool is a tool whose tool body is in the shape of a gear and meshes with the gear of the workpiece to grind the tooth surface of the gear. A tooth surface 10 is formed on the outer periphery of the tool body 6 made of steel, and hard abrasive grains are fixed to the tooth surface 1 by a fixing method such as electrodeposition. Furthermore, in order to improve the grindability and extend the life of the above-mentioned tool, as shown in FIG. In addition to reducing the surface pressure during grinding, the grinding oil is also devised to improve the flow of grinding oil to the tooth surface 1, thereby improving its infiltration ability and the tendency to expel chips.
ところで、」−述のように構成して研削Ｍ１が工具と被
加工物との間に浸入しやすいように工夫しても、研削油
の供給が根本的に研削箇所の外部から供給されるため、
研削油は実際の研削点へまで浸入していないのが実情で
ある。しかしながら、この種の工具では研削油の浸入状
態、例えば油量。
噴射圧力等が被加工歯車の研削精度および寿命に大きな
影響を与えろため、工具と被ＩＪ［］工物との間へのさ
らに確実な研削油の供給が望まれている。
本発明は］二連のごとき問題点に鑑み、これらを有効に
解決すべく創案されたものである。したがってその目的
は、工具の歯面と被加工物の歯車の歯面との間に十分な
研削油を確実に且つ均等に浸入させることのできる給油
機構を備えた歯車研削用工具を提供することにある。By the way, even if it is configured as described above so that the grinding M1 can easily enter between the tool and the workpiece, the grinding oil is fundamentally supplied from outside the grinding location. ,
The reality is that the grinding oil does not penetrate into the actual grinding point. However, in this type of tool, the state of infiltration of grinding oil, for example, the amount of oil. Since the injection pressure and the like have a great effect on the grinding accuracy and life of the gear to be machined, it is desired to supply grinding oil more reliably between the tool and the workpiece to be IJed. The present invention has been devised in view of the following two problems and to effectively solve them. Therefore, the object is to provide a gear grinding tool equipped with a lubricating mechanism that can reliably and evenly infiltrate sufficient grinding oil between the tooth surface of the tool and the tooth surface of the gear of the workpiece. It is in.
本発明に係る歯車研削用工具は、歯車形状に形成され、
歯面に硬質砥粒を固着さ什てなる歯車研削用二り具にお
いて、該工具の内周部から外周部の前記歯面へ貫通して
研削油路となる孔が多数形成されている。
なお、孔の大きさ、数、形状および位置は工具自体の大
きさやその他の加工条件に応じて適宜設定することがで
きる。The gear grinding tool according to the present invention is formed into a gear shape,
In a gear grinding tool having hard abrasive grains fixed to the tooth surface, a large number of holes are formed that penetrate from the inner peripheral part of the tool to the outer peripheral part of the tooth surface and serve as grinding oil passages. Note that the size, number, shape, and position of the holes can be appropriately set depending on the size of the tool itself and other processing conditions.
本発明に係る歯車研削用工具によれば、工具の歯面に多
数開口する孔によって研削油が、工具の歯面と被加工物
の歯車の歯面との間（研削点）に直接に、均等に、しか
ら強制的に供給できる。この研削点への直接給油は、そ
の部位における発熱を防止ずろ。したがって、発熱によ
る砥粒の摩耗および破壊が防止され、工具寿命の延長と
高精度加工の維持が可能となる。また、この直接給４１
１は切粉排出を容易にするので、目詰まりを防止し、良
好な切れ味を持続する。ごの切粉排出機能は給油圧力の
増大とともに高められる。孔の開口部は、その周縁が切
刃として機能するので切削作用をなし、研削効果が高め
られる。さらに、工具歯面にお（Ｊろ孔の開口部には砥
粒が存在しないから、その分たけ工具と被加工歯車との
接触面積が減り、面圧が低下して押しイ」（」荷重か小
さくなる。
また、研削油は、工具の回転による遠心力を受けるので
、工具本体の内周部から外周部へ孔内をスムーズに流動
ずろ。
【実施例］
以下に本発明の好適一実施例について第１図ないし第４
図を参照して説明オろ。
第１図は本発明に係る歯車研削用工具の歯面を示す斜視
図である。図示するように、歯面１に（」多数の孔２が
適宜配列された位置に開口している。
この孔２は、第２図および第３図に示されろように、工
具取付軸３に内接する内接座４の室底５から歯面ｌまで
貫通してしている。
一方、工具取付軸３には、その軸心部に穿設され、工具
本体６が取り付けられる位置で径方向へ適宜放射状に分
岐されて上記内接座４に開口する給油孔７が形成されて
いる。研削油は、この給油孔７から任意の方法で供給さ
れ、内接座４から孔２を介して工具歯面１に流出し、実
際の研削点に供給される。したかって、研削点における
研削熱の」二昇を直接的に防止し、砥粒の摩耗や破壊を
防止できる。
さらに、研削油を研削点に直接噴射することによって切
粉の目詰まりを防止できるので、研削油の供給量と噴射
圧力とを適宜設定することによって研削切込み量および
送り量を増大てき、したがって加工能率が高まる。
工具歯面ｌの孔２には砥粒が付着されていない訳である
から、その分だけ工具と被加工物との接触面積が小さく
なり、したがって研削時の面圧を低くすることができ、
ひいては押付荷重も小さくできる。
また、孔２の開口周縁部には、孔２の内周壁面と工具歯
面１との交差により多数の切刃が形成されることになり
、この切削作用と相まって研削効果が高められる。この
効果は孔２の数が多いほど高められる。
以上の実施例では、工具歯面１が平坦な面である場合に
ついて説明したが、例えば第４図に示すように、歯面１
には工具本体６の径方向へ延びるセレーション溝８が形
成されていても」；＜、この場合にはランド部９に孔２
が形成されることによって」二連のごとき研削効果がさ
らに高められる。
【発明の効果］
以」−の説明より明らかなように、本発明によれば次の
ごとき優れた効果が発揮される。工具の歯面と被加工物
の歯車の歯面との間に確実に、均等に、しかも十分に研
削油を浸入させることができる。したがって、研削点で
の発熱を防ぎ、工具寿命と被加工歯車の歯形、リード、
ピッチ等を高精度に仕」二げられる。According to the gear grinding tool according to the present invention, the grinding oil is directly supplied between the tooth surface of the tool and the tooth surface of the gear of the workpiece (grinding point) through the many holes opened on the tooth surface of the tool. It can be supplied evenly and forcefully. Supplying oil directly to the grinding point will prevent heat generation at that location. Therefore, abrasion and destruction of the abrasive grains due to heat generation are prevented, and tool life can be extended and high-precision machining can be maintained. In addition, this direct payment 41
1 facilitates the discharge of chips, prevents clogging, and maintains good sharpness. The chip evacuation function of the chisel increases as the oil supply pressure increases. Since the periphery of the opening of the hole functions as a cutting edge, it performs a cutting action and the grinding effect is enhanced. Furthermore, since there are no abrasive grains on the tooth surface of the tool (at the opening of the J-hole, the contact area between the tool and the gear to be machined is reduced accordingly, the surface pressure is reduced and the pushing force is increased). In addition, since the grinding oil is subjected to centrifugal force due to the rotation of the tool, it flows smoothly inside the hole from the inner circumference to the outer circumference of the tool body. [Example] Below is a preferred embodiment of the present invention. Figures 1 to 4 for examples
Please explain with reference to the diagram. FIG. 1 is a perspective view showing a tooth surface of a gear grinding tool according to the present invention. As shown in the figure, a large number of holes 2 are opened in the tooth surface 1 at appropriately arranged positions. It penetrates from the chamber bottom 5 of the internal seat 4 that is inscribed in the tooth surface l.On the other hand, the tool mounting shaft 3 is bored at its axial center, and has a diameter at the position where the tool body 6 is mounted. An oil supply hole 7 is formed which branches radially in the direction as appropriate and opens into the inscribed seat 4. Grinding oil is supplied from this oil supply hole 7 by an arbitrary method, and flows from the inscribed seat 4 through the hole 2. It flows out onto the tool tooth surface 1 and is supplied to the actual grinding point.Therefore, it is possible to directly prevent the grinding heat from rising at the grinding point and prevent abrasive grains from being worn out or destroyed.Furthermore, grinding By injecting oil directly to the grinding point, clogging of chips can be prevented, so by appropriately setting the supply amount and injection pressure of grinding oil, the grinding depth of cut and feed rate can be increased, thus increasing machining efficiency. Since no abrasive grains are attached to the hole 2 on the tooth surface l of the tool, the contact area between the tool and the workpiece becomes smaller, and therefore the surface pressure during grinding can be lowered. ,
As a result, the pressing load can also be reduced. In addition, a large number of cutting edges are formed at the opening periphery of the hole 2 by the intersection of the inner peripheral wall surface of the hole 2 and the tool tooth surface 1, and in combination with this cutting action, the grinding effect is enhanced. This effect is enhanced as the number of holes 2 increases. In the above embodiments, the case where the tool tooth surface 1 is a flat surface has been explained, but for example, as shown in FIG.
Even if a serration groove 8 extending in the radial direction of the tool body 6 is formed in the hole 2 in the land portion 9,
As a result of this formation, the grinding effect, such as a double series, is further enhanced. [Effects of the Invention] As is clear from the explanation below, the present invention provides the following excellent effects. Grinding oil can be reliably, evenly, and sufficiently infiltrated between the tooth surface of the tool and the tooth surface of the gear of the workpiece. Therefore, heat generation at the grinding point is prevented, and the tool life and tooth profile of the gear to be processed, lead,
Pitch etc. can be controlled with high precision.
第１図は本発明に係る歯車研削用工具の歯面を示す斜視
図、第２図は本発明に係る歯車研削用工具を正面側から
見て模式的に表す説明図、第３図は第２図にお＋３る工
具本体を■−■で切断して示す断面図、第４図は本発明
に係る歯車研削用工具の歯面の他の実施例を示す斜視図
、第５図および第６図はそれぞれ従来技術におけろ歯車
研削用工具の歯面を示す斜視図である。
１ ・歯面、２・・孔、３・工具数イ」軸、４・・内接
座、５・・座屈、６・工具本体、７・給油孔、８・・セ
レーション溝、９ ランド部、１０・歯面性 許 出
願 人 株式会社神戸製鋼所代 理 人 弁理士
前出 葆（ばか２名）第 １ 図FIG. 1 is a perspective view showing the tooth surface of a gear grinding tool according to the present invention, FIG. 2 is an explanatory diagram schematically showing the gear grinding tool according to the present invention viewed from the front side, and FIG. Fig. 2 is a sectional view showing the tool main body marked +3 taken along the line ■-■, Fig. 4 is a perspective view showing other embodiments of the tooth surface of the gear grinding tool according to the present invention, Figs. FIG. 6 is a perspective view showing a tooth surface of a gear grinding tool according to the prior art. 1. Tooth surface, 2. Hole, 3. Tool number axis, 4. Inscribed seat, 5. Buckling, 6. Tool body, 7. Oil supply hole, 8. Serration groove, 9 Land part. , 10・Tooth surface property permission
Applicant Kobe Steel Co., Ltd. Representative Patent attorney
Figure 1 of the above (2 idiots)
Claims (1)
固着させてなる歯車研削用工具において、該工具本体（
６）の内周部から外周部の前記歯面（１）へ貫通して研
削油路となる孔（２）が多数形成されたことを特徴とす
る歯車研削用工具。(1) A gear grinding tool formed in the shape of a gear and having hard abrasive grains fixed to the tooth surface (1), the tool body (
6) A gear grinding tool characterized in that a large number of holes (2) are formed to penetrate from the inner peripheral part to the tooth surface (1) on the outer peripheral part and serve as grinding oil passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15851786A JPS6316921A (en) | 1986-07-05 | 1986-07-05 | Gear grinding tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15851786A JPS6316921A (en) | 1986-07-05 | 1986-07-05 | Gear grinding tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6316921A true JPS6316921A (en) | 1988-01-23 |
Family
ID=15673471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15851786A Pending JPS6316921A (en) | 1986-07-05 | 1986-07-05 | Gear grinding tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6316921A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094039A (en) * | 1989-10-16 | 1992-03-10 | Mitsubishi Jukogyo Kabushiki Kaisha | Gear type tool |
| US5290135A (en) * | 1992-10-28 | 1994-03-01 | The Gleason Works | Rotary ring cutter having coolant distribution and discharge means |
| EP1184122A1 (en) * | 2000-09-04 | 2002-03-06 | Honda Giken Kogyo Kabushiki Kaisha | Method of forming tooth grooves |
| JP2019042742A (en) * | 2017-08-30 | 2019-03-22 | オーエスジー株式会社 | Rolling die |
| WO2022261891A1 (en) * | 2021-06-17 | 2022-12-22 | 江苏飞船股份有限公司 | Fine treatment apparatus for internal gear surface |
-
1986
- 1986-07-05 JP JP15851786A patent/JPS6316921A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5094039A (en) * | 1989-10-16 | 1992-03-10 | Mitsubishi Jukogyo Kabushiki Kaisha | Gear type tool |
| US5290135A (en) * | 1992-10-28 | 1994-03-01 | The Gleason Works | Rotary ring cutter having coolant distribution and discharge means |
| EP1184122A1 (en) * | 2000-09-04 | 2002-03-06 | Honda Giken Kogyo Kabushiki Kaisha | Method of forming tooth grooves |
| JP2002079421A (en) * | 2000-09-04 | 2002-03-19 | Honda Motor Co Ltd | Tooth space machining method |
| US6520842B2 (en) | 2000-09-04 | 2003-02-18 | Honda Giken Kogyo Kabushiki Kaisha | Method of forming tooth grooves |
| JP2019042742A (en) * | 2017-08-30 | 2019-03-22 | オーエスジー株式会社 | Rolling die |
| WO2022261891A1 (en) * | 2021-06-17 | 2022-12-22 | 江苏飞船股份有限公司 | Fine treatment apparatus for internal gear surface |
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