JP2994977B2 - Hourglass worm wheel tooth profile creation method - Google Patents
Hourglass worm wheel tooth profile creation methodInfo
- Publication number
- JP2994977B2 JP2994977B2 JP6319713A JP31971394A JP2994977B2 JP 2994977 B2 JP2994977 B2 JP 2994977B2 JP 6319713 A JP6319713 A JP 6319713A JP 31971394 A JP31971394 A JP 31971394A JP 2994977 B2 JP2994977 B2 JP 2994977B2
- Authority
- JP
- Japan
- Prior art keywords
- worm wheel
- hourglass
- grinding
- abrasive grains
- hourglass worm
- 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
- 238000000034 method Methods 0.000 title claims description 7
- 239000006061 abrasive grain Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 12
- 238000004070 electrodeposition Methods 0.000 claims description 11
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 9
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000003672 processing method Methods 0.000 description 4
- 206010006514 bruxism Diseases 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- B23F21/02—Grinding discs; Grinding worms
- B23F21/026—Grinding worms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F11/00—Making worm wheels, e.g. by hobbing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鼓形ウォ−ムホイ−ル
の歯形創成法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a tooth shape of an hourglass worm wheel.
【０００２】[0002]
【従来の技術】鼓形ウォ−ムホイ−ルの歯切りは、鼓形
ウォ−ムホブ（図１参照）もしくは、その一部を採った
舞いカッタ−で行われていた。鼓形ウォ−ムホブは、円
筒ウォ−ムホブの様に定リ−ドのねじ面ではなく、その
刃側面の２番付はほとんど手作業に依るしかなく、その
歯形精度は悪い。又掬い面を再研削すると、その歯形は
理想歯形よりずれて行く。2. Description of the Related Art Hourglass worm wheels are cut with a drumworm hob (see FIG. 1) or a flutter cutter having a part thereof. The drum-shaped worm hob is not a threaded surface with a fixed lead like a cylindrical worm hob. Also, when the scooping surface is reground, the tooth profile is shifted from the ideal tooth profile.
【０００３】[0003]
【発明が解決しようとする課題】上述したように、鼓形
ウォ−ムホイ−ルの歯切り方法として従来用いられてい
た鼓形ウォ−ムホブは、二番取りが難しく、鼓形ウォ−
ムホブ自体の製作が困難であり、歯形精度の良い鼓形ウ
ォ−ムホイ−ル歯を創成するのは困難であった。As described above, the drum-shaped worm hob conventionally used as a method for cutting a drum-shaped worm wheel is difficult to make a second count, and the drum-shaped worm wheel is difficult.
It was difficult to manufacture the muhob itself, and it was difficult to create an hourglass-shaped worm wheel with good tooth profile accuracy.
【０００４】本発明は、上記した従来技術の問題点に鑑
み、鼓形ウォ−ムホブを使用しないで歯形精度の良い鼓
形ウォ−ムホイ−ルの歯形を創成する方法を提供する。SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention provides a method for creating a tooth profile of a drum-shaped worm wheel having a good tooth profile without using a drum-shaped worm hob.
【０００５】[0005]
【課題を解決するための手段】銅合金鼓形ウオームホイ
ールを、これとかみ合う鼓形ウオームねじと同形状であ
り、そのねじ面に砥粒を電着してなる電着砥石により、
ウオームホイール素材から歯研削創成する際に、砥粒一
個の前記ウオームホイール素材への最大切込深さを砥粒
平均径の４分の１以下として鼓形ウオームホイール歯を
研削創成仕上げするようにする。あるいは、ねじ面に砥
粒を電着し、研削創成しようとする銅合金鼓形ウオーム
ホイールとかみ合う鼓形ウオームねじと同形状にした電
着砥石により、ウオームホイール素材から銅合金鼓形ウ
オームホイール歯を研削創成する際に、砥粒一個の前記
ウオームホイール素材への最大切込深さを砥粒平均径の
４分の１以下として鼓形ウオームホイール歯を研削創成
するようにする。とくに、ねじ面にダイヤモンド砥粒又
はＣＢＮ砥粒を電着してなる電着砥石によりウオームホ
イール素材から鼓形ウオームホイール歯を研削創成する
ようにした。Means for Solving the Problems A copper alloy hourglass worm wheel has the same shape as an hourglass worm screw to be engaged with the wheel, and an electrodeposition whetstone formed by electrodepositing abrasive grains on the screw surface is used .
From worm wheel material when teeth grinding creating the highest importance Komifuka of the abrasive grain one of the worm wheel material a quarter hourglass worm wheel teeth as 1 following the abrasive mean diameter to grind created finishing I do. Alternatively, a copper alloy hourglass worm wheel tooth is formed from the worm wheel material by electrodepositing abrasive grains on the thread surface and using an electrodeposited whetstone that has the same shape as the hourglass worm screw that meshes with the copper alloy hourglass worm wheel to be ground and created. when grinding creating the abrasive grains one of the
The maximum depth of cut in the worm wheel material is set to not more than one-fourth of the average diameter of the abrasive grains so that the hourglass-shaped worm wheel teeth are formed by grinding. In particular, the worm wheel is formed by an electrodeposited whetstone made by electrodepositing diamond abrasive grains or CBN abrasive grains on the screw surface.
Hourglass worm wheel teeth are created by grinding from eel material .
【０００６】[0006]
【実施例】本発明の実施例を以下、図面に基づいて説明
する。図２は、本発明において使用する電着砥石３であ
る。電着砥石３は、歯研削しようとする銅合金鼓形ウォ
−ムホイ−ルとかみ合う鼓形ウォ−ムねじと同形状であ
り、そのねじ面に砥粒を電着してある。あるいは、電着
砥石３は、そのねじ面に砥粒を電着してあり、歯研削し
ようとする銅合金鼓形ウォ−ムホイ−ルとかみ合う鼓形
ウォ−ムねじと同形状である。砥粒としては、ダイヤモ
ンド砥粒又はＣＢＮ砥粒が望ましい。Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows an electrodeposition grindstone 3 used in the present invention. The electrodeposited grindstone 3 has the same shape as a drum-shaped worm screw that meshes with a copper alloy drum-shaped worm wheel to be ground, and abrasive grains are electrodeposited on the screw surface. Alternatively, the electrodeposited grindstone 3 is formed by electrodepositing abrasive grains on its thread surface, and has the same shape as a drum-shaped worm screw engaged with a copper alloy drum-shaped worm wheel to be ground. As the abrasive grains, diamond abrasive grains or CBN abrasive grains are desirable.
【０００７】歯形創成しようとする鼓形ウォ−ムホイ−
ル歯の材質は銅合金（例えばアルミ青銅）である点が特
徴で、このウォ−ムホイ−ル歯をこれとかみ合う鼓形ウ
ォ−ム歯と同形状に仕上げた電着ダイヤモンド砥石（又
はＣＢＮ砥石）により研削創成するのであるが、実際の
加工方法を以下に説明する。[0007] Hourglass worm hoist to create teeth
The material of the tooth is a copper alloy (for example, aluminum bronze). Electrodeposited diamond wheel (or CBN wheel) in which the worm wheel tooth is finished in the same shape as the hourglass worm tooth that meshes with it. ), The actual processing method will be described below.
【０００８】加工方法は、構成上は従来のホブ加工と同
じである。即ち、図３及び図４に示すようなホブ盤１上
で、従来ホブを取付けていたホブア−バ２上に、ホブの
代りに電着砥石３を取付ける。ホブ盤テ−ブル４上のワ
−ク軸５にウォ−ムホイ−ル素材６を取付ける。The processing method is the same as that of the conventional hobbing in structure. That is, on a hob machine 1 as shown in FIGS. 3 and 4, an electrodeposition grindstone 3 is mounted instead of a hob on a hob aber 2 to which a conventional hob is mounted. A worm wheel blank 6 is mounted on a work shaft 5 on a hobbing machine table 4.
【０００９】この状態でホブア−バ（砥石軸）２とワ−
ク軸５を本ウォ−ム・ギヤセットの減速比ｉに等しい回
転数比で回転させつつテ−ブル４をホブア−バ軸（砥石
軸）２方向に送り込む。これによりウォ−ムホイ−ル歯
の電着砥石３による研削創成が始まり、ホイ−ル歯丈分
だけ追込み完了した時、鼓形ウォ−ムホイ−ル歯の創成
が終了する。In this state, the hobber (grinding wheel shaft) 2 and the wire
The table 4 is fed in the direction of the hobber shaft (grinding wheel shaft) 2 while rotating the shaft 5 at a rotational speed ratio equal to the reduction ratio i of the worm and gear set. As a result, the creation of the worm wheel teeth by the electrodeposition grindstone 3 starts, and when the addition of the wheel teeth is completed, the creation of the hourglass-shaped worm wheel teeth is completed.
【００１０】電着砥石の場合、砥粒径の約１／２は電着
層に埋め込まれ、なおかつ電着層には切子排除に都合の
良い空隙はない。そこで砥石が目づまりしない条件を研
削テストにより、条件出しを試みた。図５に研削テスト
の結果を示す。図５は、横軸に砥粒一個の最大切込み深
さｇmax をとり、縦軸に研削量をとると、ｇmaxがｄw／
４(ｄw：砥粒平均径）以下の範囲では、ｇmax を大きく
していくと、それに伴って研削量も増加するが、ｇmax
＝ｄw／４を境に、ｇmax を大きくしても、研削量は増
加せず、かえって急激に減少することが、研削テストの
結果により判明した。[0010] In the case of an electrodeposited grinding wheel, about 1/2 of the abrasive grain size is embedded in the electrodeposited layer, and the electrodeposited layer does not have voids that are convenient for removing the facets. Therefore, we tried to find out the condition in which the grindstone was not clogged by a grinding test. FIG. 5 shows the results of the grinding test. FIG. 5 shows the maximum depth of cut gmax of one abrasive grain on the horizontal axis and the amount of grinding on the vertical axis.
In the range of 4 (dw: average diameter of abrasive grains) or less, as gmax is increased, the grinding amount also increases.
From the results of the grinding test, it was found that, even if gmax was increased at the boundary of = dw / 4, the grinding amount did not increase but rather sharply decreased.
【００１１】すなわち、ｇmax＞ｄw／４の範囲では、電
着砥石は目づまりしている可能性があり、危険範囲であ
るといえる。このことから、電着砥石により歯研削する
際には、砥粒一個の最大切込深さを砥粒平均半径の４分
の１以下(ｇmax≦ｄw／４)として鼓形ウォ−ム歯を研削
創成仕上することが必要であることがわかる。この条件
を満す限り、電着層とワ−ク表面との間に最小でもｄw
／４の空隙が作られることになり目づまりすることはな
い。That is, in the range of gmax> dw / 4, there is a possibility that the electrodeposition grindstone is clogged, and it can be said that it is a dangerous range. For this reason, when grinding teeth with an electrodeposition grindstone, the maximum cutting depth of one abrasive grain is set to one-fourth or less of the average radius of the abrasive grains (gmax ≦ dw / 4), and the hourglass-shaped worm tooth is formed. It can be seen that it is necessary to perform a grinding generation finish. As long as this condition is satisfied, at least dw is required between the electrodeposition layer and the work surface.
A gap of / 4 is created, and no clogging occurs.
【００１２】[0012]
【発明の効果】電着砥石で鼓形ウォ−ム歯を研削創成仕
上するので、２番取りによる歯形精度の低下も掬い面再
研削に依る歯形精度の低下も無くなり、仕上面の良好な
鼓形ウォ−ムホイ−ル歯形を創成できる。Since the drum-shaped worm tooth is finished by grinding with an electrodeposited grindstone, there is no reduction in the tooth profile accuracy due to the second picking, and no reduction in the tooth profile accuracy due to the regrinding of the scooping surface. A worm wheel tooth profile can be created.
【図１】従来の鼓形ウォ−ムホブの側面図（一部断面
図）。FIG. 1 is a side view (partly sectional view) of a conventional drum-shaped worm hob.
【図２】本発明の電着砥石の側面図（一部断面図）。FIG. 2 is a side view (partially sectional view) of the electrodeposition grindstone of the present invention.
【図３】本発明の電着砥石をホブ盤に装着して、加工方
法を説明する図（正面図）。FIG. 3 is a view (front view) for explaining a processing method in which the electrodeposition whetstone of the present invention is mounted on a hobbing machine.
【図４】本発明の電着砥石をホブ盤に装着して、加工方
法を説明する図（側面図）。FIG. 4 is a view (side view) for explaining a processing method in which the electrodeposition whetstone of the present invention is mounted on a hobbing machine.
【図５】砥粒一個の最大切込み深さｑmaxと研削量との
関係を示すグラフ。FIG. 5 is a graph showing a relationship between a maximum cutting depth qmax of one abrasive grain and a grinding amount.
１ ホブ盤 ２ ホブア−バ ３ 電着砥石 ４ ホブテ−ブル ５ ワ−ク軸 ６ ウォ−ムホイ−
ル素材DESCRIPTION OF SYMBOLS 1 Hobbing machine 2 Hobber 3 Electroplated grinding wheel 4 Hobtable 5 Work shaft 6 Worm wheel
Material
フロントページの続き (56)参考文献 特開 平５−305516（ＪＰ，Ａ) 特開 平５−237763（ＪＰ，Ａ) 実開 昭56−142929（ＪＰ，Ｕ) 実開 平４−5366（ＪＰ，Ｕ) 実開 昭62−19124（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) B23F 1/00 - 23/12 B24D 3/06,7/18 Continuation of the front page (56) References JP-A-5-305516 (JP, A) JP-A-5-237763 (JP, A) JP-A-56-142929 (JP, U) JP-A-5-5366 (JP) , U) Actual opening 62-19124 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) B23F 1/00-23/12 B24D 3/06, 7/18
Claims (3)
かみ合う鼓形ウオームねじと同形状であり、そのねじ面
に砥粒を電着してなる電着砥石により、ウオームホイー
ル素材から歯研削創成する際に、砥粒一個の前記ウオー
ムホイール素材への最大切込深さを砥粒平均径の４分の
１以下として鼓形ウオームホイール歯を研削創成するこ
とを特徴とする鼓形ウオームホイール歯形創成法。1. A copper alloy hourglass worm wheel having the same shape as an hourglass worm screw engaged therewith, and an electrodeposition grindstone formed by electrodepositing abrasive grains on the thread surface of the worm wheel.
When creating tooth grinding from a steel material, the above-mentioned
Hourglass worm wheel tooth forming method characterized in that the maximum depth of cut in the rubber wheel material is one-fourth or less of the average diameter of the abrasive grains to grind and create the hourglass worm wheel teeth.
とする銅合金鼓形ウオームホイールとかみ合う鼓形ウオ
ームねじと同形状にした電着砥石により、ウオームホイ
ール素材から銅合金鼓形ウオームホイール歯を研削創成
する際に、砥粒一個の前記ウオームホイール素材への最
大切込深さを砥粒平均径の４分の１以下として鼓形ウオ
ームホイール歯を研削創成することを特徴とする鼓形ウ
オームホイール歯形創成法。2. A worm wheel formed by electrodepositing abrasive grains on a screw surface and forming an electrodeposited whetstone having the same shape as a drum-shaped worm screw meshing with a copper alloy drum-shaped worm wheel to be ground and formed.
Drum copper alloy hourglass worm wheel teeth from Lumpur material when grinding creating <br/>, the most important Komifuka of the abrasive grain one of the worm wheel material as less than a quarter of the abrasive mean diameter Hourglass worm wheel tooth forming method characterized by grinding and generating worm wheel teeth.
粒を電着してなる電着砥石によりウオームホイール素材
から鼓形ウオームホイール歯を研削創成することを特徴
とする請求項１又は請求項２記載の鼓形ウオームホイー
ル歯形創成法。3. A worm wheel material using an electrodeposited whetstone obtained by electrodepositing diamond abrasive grains or CBN abrasive grains on a screw surface.
Hourglass worm wheel tooth creation method according to claim 1 or claim 2, wherein the grinding creating the hourglass worm wheel teeth from.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6319713A JP2994977B2 (en) | 1994-12-05 | 1994-12-22 | Hourglass worm wheel tooth profile creation method |
| US08/534,387 US5647790A (en) | 1994-12-22 | 1995-09-27 | Method for generating tooth surfaces of globoid worm wheel |
| CN95120262A CN1060706C (en) | 1994-12-22 | 1995-11-27 | Method for generating tooth surfaces of globoid worm wheel |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-300669 | 1994-12-05 | ||
| JP30066994 | 1994-12-05 | ||
| JP6319713A JP2994977B2 (en) | 1994-12-05 | 1994-12-22 | Hourglass worm wheel tooth profile creation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08206919A JPH08206919A (en) | 1996-08-13 |
| JP2994977B2 true JP2994977B2 (en) | 1999-12-27 |
Family
ID=26562411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6319713A Expired - Fee Related JP2994977B2 (en) | 1994-12-05 | 1994-12-22 | Hourglass worm wheel tooth profile creation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2994977B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000288834A (en) * | 1999-04-05 | 2000-10-17 | Seiwa Tekko Kk | Gear grinding machine and gear grinding process |
| JP2016107359A (en) * | 2014-12-04 | 2016-06-20 | 三菱重工工作機械株式会社 | Grindstone for gear machining |
| CN117863092A (en) * | 2024-02-01 | 2024-04-12 | 杭州萧山昌宇五金机械有限公司 | A kind of alloy tooth grinding wheel and its manufacturing process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56142929U (en) * | 1980-03-26 | 1981-10-28 | ||
| JPH045366U (en) * | 1990-04-27 | 1992-01-17 | ||
| JPH05237763A (en) * | 1992-02-28 | 1993-09-17 | Asahi Daiyamondo Kogyo Kk | Dressing method for electrodeposition type grinding wheel |
| JPH05305516A (en) * | 1992-05-07 | 1993-11-19 | Honda Motor Co Ltd | Gear manufacturing method and gear grinding tool |
-
1994
- 1994-12-22 JP JP6319713A patent/JP2994977B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08206919A (en) | 1996-08-13 |
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