JPH0653329B2 - Tooth receiving jig - Google Patents
Tooth receiving jigInfo
- Publication number
- JPH0653329B2 JPH0653329B2 JP62000692A JP69287A JPH0653329B2 JP H0653329 B2 JPH0653329 B2 JP H0653329B2 JP 62000692 A JP62000692 A JP 62000692A JP 69287 A JP69287 A JP 69287A JP H0653329 B2 JPH0653329 B2 JP H0653329B2
- Authority
- JP
- Japan
- Prior art keywords
- tooth
- bevel gear
- contact
- tooth receiving
- 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.)
- Expired - Fee Related
Links
Landscapes
- Gear Processing (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、主として、精密鍛造で歯部を形成した曲り歯
傘歯車あるいは直歯傘歯車の内外周部を機械加工する際
に該傘歯車を固定するための歯受け治具に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention mainly relates to a bevel gear having a tooth portion formed by precision forging, or a bevel gear when machining the inner and outer peripheral portions of a straight bevel gear. The present invention relates to a tooth receiving jig for fixing a tooth.
一般に、曲り歯傘歯車あるいは直歯傘歯車の歯部を精密
鍛造することにより、歯切盤等による歯面の追加加工を
不要とする鍛造歯車を得ることができるが、この場合に
は、ギヤケースあるいはシャフトとの接触面となる部位
を機械加工によって仕上げ加工する必要がある。そし
て、この際、鍛造歯車を正確に位置決めして機械加工を
行なわなければ、高い精度で鍛造成形した歯部の精度を
維持して、歯車を完全品とすることができない。このた
め、鍛造歯車を機械加工する際には、鍛造歯車の歯面を
受ける接触部を有する治具が一般的に用いられている
が、最も正確にかつ安定して鍛造歯車を位置決めするた
めには、歯車のピッチライン像で歯車歯面と治具接触部
が接するようにした治具が望ましい。Generally, by precision forging the tooth portion of a bevel gear or a straight bevel gear, it is possible to obtain a forged gear that does not require additional processing of the tooth surface by a gear cutting machine, but in this case, a gear case Alternatively, it is necessary to finish the part that will be the contact surface with the shaft by machining. At this time, unless the forged gear is accurately positioned and machined, the precision of the tooth portion forged and formed with high accuracy cannot be maintained and the gear cannot be a perfect product. Therefore, when machining the forged gear, a jig having a contact portion that receives the tooth surface of the forged gear is generally used, but the most accurate and stable positioning of the forged gear is required. Is preferably a jig in which the gear tooth surface is in contact with the jig contact portion in the pitch line image of the gear.
そして、このような形式の歯受け治具は、大別すると、
第６図及び第７図に示すように使用されている。すなわ
ち、第６図に示すものは、上記歯受け治具１が取付穴１
ａを用いて工作機械の主軸面板２に取付けられ、かつ機
械加工する際には、この歯受け治具１に、加工しようと
する歯車３の歯部３ａを嵌め込んだ後、油圧力等によっ
て作動する芯押し４を歯車端部中心に押し当てることに
より、歯車３を位置決めし保持するようにしている。ま
た、第７図のものは、主軸面板２に取付けられた固定部
材５の挿通孔５ａに歯受け治具６を嵌め込み、かつこの
歯受け治具６に、加工しようとする歯車３の歯部３ａを
嵌め込むと共に、工作機械の主軸に内蔵された油圧また
は空気圧シリンダロッド７に連結されたチャック機構８
のツメ８ａを歯車背部に押し当てて歯車３を位置決め保
持するようにしている。And, the tooth receiving jigs of this type are roughly classified as follows.
It is used as shown in FIGS. 6 and 7. That is, as shown in FIG. 6, the tooth receiving jig 1 has the mounting hole 1
It is attached to the spindle face plate 2 of the machine tool by using a, and at the time of machining, after fitting the tooth portion 3a of the gear 3 to be machined into the tooth receiving jig 1, it is subjected to hydraulic pressure or the like. The gear 3 is positioned and held by pressing the operating tailstock 4 against the center of the end of the gear. Further, in FIG. 7, the tooth receiving jig 6 is fitted into the insertion hole 5a of the fixing member 5 attached to the spindle face plate 2, and the tooth portion of the gear 3 to be machined is inserted into the tooth receiving jig 6. 3a is fitted and a chuck mechanism 8 connected to a hydraulic or pneumatic cylinder rod 7 built in the spindle of the machine tool
The claw 8a is pressed against the back of the gear to hold the gear 3 in position.
そして、上記のような歯車の位置決め保持方法にいて、
鍛造歯車を正確にかつ安定的に位置決めできるか否か
は、歯受け治具そのものの形状及び精度による。いいか
えれば、歯車のピッチライン上で歯車歯面と歯受け治具
接触部が常に安定して接触できることが重要である。And in the method of positioning and holding the gears as described above,
Whether or not the forged gear can be accurately and stably positioned depends on the shape and accuracy of the tooth receiving jig itself. In other words, it is important that the tooth flank of the gear and the contact portion of the tooth receiving jig can always be in stable contact with each other on the pitch line of the gear.
ところで、従来使用されている歯受け治具には、種々の
ものがあるが、その違いは、歯受け部の形状すなわち歯
車歯面と歯受け部との接触の仕方の違いであり、大別す
ると、次の２つのタイプがある。By the way, there are various types of tooth receiving jigs that have been conventionally used, but the difference is the difference in the shape of the tooth receiving portion, that is, the way of contact between the gear tooth surface and the tooth receiving portion. Then, there are the following two types.
球形タイプ 歯形状の溝タイプ のタイプは、第８図と第９図に示すように、先端が球
形状をしたピン（またはボール）９を円板部１０の円周
方向にほぼ均等に多数（３本、もしくは５本）配置し、
各ピン９の先端部を歯車３の歯面のピッチラインＰ近傍
で接触させて歯車３を支持するものである。Spherical type As shown in FIG. 8 and FIG. 9, the tooth-shaped groove type has a large number of pins (or balls) 9 having a spherical tip in the circumferential direction of the disc portion 10 ( Place 3 or 5),
The tip of each pin 9 is brought into contact in the vicinity of the pitch line P of the tooth surface of the gear 3 to support the gear 3.
のタイプは、第１０図と第１１図に示すように、放電
加工等により、鍛造歯車３の歯部３ａに嵌め合う歯形状
の溝１１ａを歯受け治具１１に形成したもので、加工し
ようとする鍛造歯車３を歯受け治具１１の溝１１ａに嵌
め込んで支持するものである。As shown in FIG. 10 and FIG. 11, the type of has a tooth-shaped groove 11a formed in the tooth receiving jig 11 to be fitted with the tooth portion 3a of the forged gear 3 by electric discharge machining or the like. The forged gear 3 is inserted into the groove 11a of the tooth receiving jig 11 to support it.
しかしながら、上記従来の球形タイプの歯受け治具にあ
っては、歯車歯面との接触面積が小さいため、保持する
ための圧力あるいは切削抵抗により、歯車歯面にピン接
触の圧痕が発生したり、長期間の使用に対し、ピン接触
部の摩耗が著しい等の問題がある。さらに、曲り歯傘歯
車の場合には、歯車歯面が左右対称でないために、均等
に左右の歯面と接触するような高精度の歯受け治具の製
作が困難である。However, in the above conventional spherical type tooth receiving jig, since the contact area with the gear tooth surface is small, pin contact indentations may occur on the gear tooth surface due to the holding pressure or cutting resistance. However, there is a problem that the pin contact portion is significantly worn out after long-term use. Further, in the case of a helical bevel gear, since the tooth flanks of the gear are not symmetrical, it is difficult to manufacture a highly accurate tooth receiving jig that evenly contacts the left and right tooth flanks.
また、歯形状の溝タイプの歯受け治具においては、鋳造
歯車の歯形と歯受け治具の溝形状との製作過程から発生
する微妙な誤差により、鋳造歯車のピッチライン上で、
歯車歯面と歯受け治具の歯受け部とが接触しない場合が
多く、正確な位置決めができないという問題や、切粉等
の異物が歯車歯面あるいは歯受け部表面に付着した場
合、例え微細な異物であっても、この影響が位置決め精
度に直接的にあらわれるという問題がある。Further, in the tooth-shaped groove type tooth receiving jig, due to a subtle error generated from the manufacturing process of the tooth shape of the cast gear and the groove shape of the tooth receiving jig, on the pitch line of the cast gear,
In many cases, the tooth flank of the gear and the tooth receiving part of the tooth receiving jig do not come into contact with each other, and it is not possible to perform accurate positioning, or if foreign matter such as chips adheres to the tooth flank of the gear or the surface of the tooth receiving part. Even if it is a foreign substance, there is a problem that this effect directly appears in the positioning accuracy.
本溌明は、上記事情に鑑みてなされたもので、その目的
とするところは、精度良くかつ安定的に被工作物である
傘歯車を工作機械に位置決め保持することができ、しか
も比較的製作の容易な傘歯車用歯受け治具を提供するこ
とにある。The present invention has been made in view of the above circumstances, and its purpose is to be able to accurately and stably position and hold a bevel gear, which is a workpiece, on a machine tool, and to relatively manufacture it. To provide an easy bevel gear tooth receiving jig.
上記目的を達成するために、本発明は、傘歯車の歯部と
嵌合する歯受け部に、傘歯車のピッチラインで傘歯車の
歯面と線接触あるいは帯状の面接触する接触部と、該接
触部に連らなり、傘歯車の歯面に対して非接触状態の逃
し部とを形成したものである。そして、必要に応じて上
記歯受け部を、傘歯車の全ての歯部を支持するように、
あるいは全ての歯部のうち等間隔ごとに一部の歯部を支
持するように構成する。In order to achieve the above object, the present invention is a tooth receiving portion that fits with a tooth portion of a bevel gear, a contact portion that makes a line contact or a strip-shaped surface contact with the tooth surface of the bevel gear at a pitch line of the bevel gear, The relief portion is formed so as to be continuous with the contact portion and not in contact with the tooth surface of the bevel gear. Then, if necessary, the tooth receiving portion, so as to support all the tooth portions of the bevel gear,
Alternatively, it is configured to support some of the tooth portions at equal intervals.
本発明の傘歯車用歯受け治具にあっては、傘歯車の歯面
を、そのピッチライン上で歯受け部の接触部によって接
触線あるいは面接触により支え、歯受け部の他の部分を
逃し部として傘歯車の歯面との接触を避ける。In the bevel gear tooth receiving jig of the present invention, the tooth surface of the bevel gear is supported by a contact line or surface contact on the pitch line by the contact portion of the tooth receiving portion, and the other portion of the tooth receiving portion is supported. Avoid contact with the tooth flank of the bevel gear as a relief.
以下、第１図ないし第５図に基づいて本発明の実施例を
説明する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.
第１図は本発明の歯受け治具の一例を示す断面図であ
る。この歯受け治具２０は、基端側に工作機械の主軸面
板に取付けるための取付穴２１ａを有する大径のフラン
ジ部２１が設けられると共に、先端側に該フランジ部２
１より小径でかつ傘歯車２２の全ての歯部２２ａに嵌合
する歯受け部２３が形成された中空形状のものである。
そして、上記歯受け部２３は。上記傘歯車２２の嵌合時
に、該傘歯車２２のピッチラインＰ上において、傘歯車
２２の歯面２２ｂに接触して傘歯車２２を支持する接触
部２３ａと、該接触部２３ａに連らなり、かつ傘歯車２
２の歯面２２ｂ、歯底面２２ｃ及び歯先面２２ｄに対し
て非接触状態となる逃し部２３ｂとから構成されてい
る。FIG. 1 is a sectional view showing an example of a tooth receiving jig of the present invention. The tooth receiving jig 20 is provided with a large-diameter flange portion 21 having a mounting hole 21a for mounting on a spindle face plate of a machine tool on the base end side, and the flange portion 2 on the tip end side.
It has a smaller diameter than 1, and has a hollow shape in which tooth receiving portions 23 that fit into all the tooth portions 22a of the bevel gear 22 are formed.
Then, the tooth receiving portion 23. When the bevel gear 22 is fitted, on the pitch line P of the bevel gear 22, a contact portion 23a that comes into contact with the tooth surface 22b of the bevel gear 22 to support the bevel gear 22 and is connected to the contact portion 23a. , And bevel gear 2
The second tooth surface 22b, the tooth bottom surface 22c, and the relief portion 23b that is not in contact with the tooth crest surface 22d.
上記のように構成された歯受け治具２０を製作する場合
には、鍛造歯車を形成する場合と同様に放電加工等によ
って高い形状精度で歯受け部２３を成形し、次いで、鍛
造歯車２２の歯部２２ａを該歯受け部２３に嵌合してチ
ェックしながら、接触部２３ａ以外の部位を機械加工に
よって逃し部２３ｂとして歯幅方向に仕上成形する。When manufacturing the tooth-bearing jig 20 configured as described above, the tooth-bearing portion 23 is molded with high shape accuracy by electrical discharge machining or the like as in the case of forming a forged gear, and then the forged gear 22 is While fitting the tooth portion 22a into the tooth receiving portion 23 for checking, the portion other than the contact portion 23a is machined to form the relief portion 23b in the tooth width direction.
この場合、歯受け治具２０の接触部２３ａは、その幅Ｗ
が小さければ小さい程、位置決めの安定性が向上する。
このため、必要により、第４図に示すような曲面状の接
触面を第５図に示すように平面状に研削仕上することに
より、曲面接触から線接触とし、より信頼性の向上した
歯受け治具２０を得ることが可能である。なお、面接触
の場合、その接触幅Ｗは通常２mm程度とする。In this case, the contact portion 23a of the tooth receiving jig 20 has a width W
The smaller is, the more stable the positioning is.
Therefore, if necessary, the curved contact surface as shown in FIG. 4 is ground into a flat surface as shown in FIG. 5 to change the curved contact into a line contact, thereby improving the reliability of the tooth bearing. It is possible to obtain the jig 20. In the case of surface contact, the contact width W is usually about 2 mm.
また、歯数が多い鍛造歯車の場合、必ずしも全ての歯を
歯受け部２３で受ける必要はなく、特に歯受け部２３の
接触部２３ａを研削仕上する場合、加工コストの削減を
目的として歯受け部２３を全周等間隔で歯欠け状に欠落
させても前述の機能を持つ治具を得ることができる。Further, in the case of a forged gear having a large number of teeth, it is not always necessary to receive all the teeth by the tooth receiving portion 23, and particularly when the contact portion 23a of the tooth receiving portion 23 is ground and finished, the tooth receiving is performed for the purpose of reducing the processing cost. A jig having the above-mentioned function can be obtained even if the portions 23 are cut out in a toothless shape at equal intervals over the entire circumference.
さらに、本発明は、曲り歯傘歯車の場合に、その形状の
複雑さ及び高い歯車精度を要求される特性から、直歯傘
歯車に比べて従来の歯受け治具に対しあらゆる点で著し
い優先性を発揮できる。また、本発明の歯受け治具は、
鍛造歯車用に限らず、切削歯車の研削工程等における歯
受け治具としてもその優位性を発揮して適用できるもの
である。Further, in the case of a helical bevel gear, the present invention is significantly prioritized in all respects over a conventional tooth receiving jig in comparison with a straight tooth bevel gear because of its complicated shape and characteristics requiring high gear accuracy. You can exercise your sex. Further, the tooth receiving jig of the present invention,
Not only for forged gears, but also as a tooth receiving jig in the grinding process of cutting gears and the like, it can be applied with its superiority.
以上説明したように、本発明は、傘歯車の歯部と嵌合す
る歯受け部に、傘歯車のピッチラインで傘歯車の歯面と
線接触あるいは帯状の面拙速する接触部と、該接触部に
連らなり、傘歯車の歯面に対して非接触状態の逃し部と
を形成したものであるから、傘歯車の歯面を、そのピッ
チライン上で歯受け部の接触部によって線接触あるいは
面接触により受け、歯受け部の他の部分を逃し部として
傘歯車の歯面との接触を避けることにより、精度良くか
つ安定的に傘歯車を支持することができ、傘歯車の加工
精度の向上を図ることができると共に、従来の歯受け治
具に比べて製作が容易であるという優れた効果を有す
る。INDUSTRIAL APPLICABILITY As described above, the present invention relates to a tooth receiving portion that fits with a tooth portion of a bevel gear, a contact portion that makes line contact with a tooth surface of the bevel gear at a pitch line of the bevel gear, or a belt-like contact portion, and the contact. The tooth flank of the bevel gear is line-contacted by the contact portion of the tooth receiving portion on the pitch line because it is connected to the toothed portion and forms a relief portion that is in a non-contact state with the tooth surface of the bevel gear. Alternatively, the bevel gear can be accurately and stably supported by receiving it by surface contact and avoiding contact with the tooth surface of the bevel gear by using the other part of the tooth receiving portion as a relief portion. It has an excellent effect that it can be manufactured more easily than the conventional tooth receiving jig.
第１図ないし第３図は本発明の一実施例を示すもので、
第１図は断面図、第２図は歯受け部の斜視図、第３図は
第１図のIII−III線矢視図、第４図は傘歯車の歯面に曲
面接触する場合の説明図、第５図は傘歯車の歯面に線接
触する場合の説明図、第６図は傘歯車を工作機械に取付
ける場合の一例を示す断面図、第７図は傘歯車を工作機
械に取付ける場合の他の例を示す断面図、第８図と第９
図は従来の歯受け治具の一例を示すもので、第８図は断
面図、第９図は第８図のIX−IX線矢視図、第１０図と第
１１図は従来の歯受け治具の他の例を示すもので、第１
０図は断面図、第１１図は第１０図のXI−XI線矢視図で
ある。 Ｐ……ピッチライン、２０……歯受け治具、 ２２……傘歯車、２３……歯受け部、 ２２ａ……歯部、２２ｂ……歯面、 ２３ａ……接触部、２３ｂ……逃し部、1 to 3 show an embodiment of the present invention,
1 is a cross-sectional view, FIG. 2 is a perspective view of a tooth receiving portion, FIG. 3 is a view taken along the line III-III of FIG. 1, and FIG. 4 is an explanation in the case of curved contact with the tooth surface of a bevel gear. 5 and FIG. 5 are explanatory views for making line contact with the tooth surface of the bevel gear, FIG. 6 is a sectional view showing an example of mounting the bevel gear on the machine tool, and FIG. 7 is mounting the bevel gear on the machine tool. Sectional views showing another example of the case, FIG. 8 and FIG.
FIG. 8 shows an example of a conventional tooth receiving jig. FIG. 8 is a sectional view, FIG. 9 is a view taken along the line IX-IX of FIG. 8, and FIGS. 10 and 11 are conventional tooth receiving jigs. It shows another example of the jig.
FIG. 0 is a sectional view and FIG. 11 is a view taken along the line XI-XI in FIG. P ... Pitch line, 20 ... Tooth receiving jig, 22 ... Bevel gear, 23 ... Tooth receiving portion, 22a ... Tooth portion, 22b ... Tooth surface, 23a ... Contact portion, 23b ... Relief portion ,
Claims (3)
歯車の内外周部を機械加工する際に該傘歯車を固定する
歯受け治具において、上記傘歯車の歯部と嵌合する歯受
け部に、上記傘歯車のピッチラインで該傘歯車の歯面と
線接触あるいは帯状の面接触する接触部と、該接触部に
連らなり、かつ上記傘歯車の歯面に対して非接触状態の
逃し部とが形成されたことを特徴とする歯受け治具。1. A tooth receiving jig for fixing a bevel gear when machining the inner and outer peripheral portions of a bevel gear such as a spiral bevel gear or a straight bevel gear, and is fitted with the tooth portion of the bevel gear. A tooth receiving portion, a contact portion that is in line contact or a strip-shaped surface contact with the tooth surface of the bevel gear at the pitch line of the bevel gear, and is connected to the contact portion, A tooth receiving jig, wherein a relief portion in a non-contact state is formed.
するように構成されたことを特徴とする特許請求の範囲
第１項記載の歯受け治具。2. The tooth receiving jig according to claim 1, wherein the tooth receiving portion is configured to support all the tooth portions of the bevel gear.
等間隔ごとに一部の歯部を支持するように構成されたこ
とを特徴とする特許請求の範囲第１項記載の歯受け治
具。3. The tooth receiving section according to claim 1, wherein the tooth receiving section is configured to support a part of all tooth sections of the bevel gear at equal intervals. Tooth receiving jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62000692A JPH0653329B2 (en) | 1987-01-06 | 1987-01-06 | Tooth receiving jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62000692A JPH0653329B2 (en) | 1987-01-06 | 1987-01-06 | Tooth receiving jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63169218A JPS63169218A (en) | 1988-07-13 |
| JPH0653329B2 true JPH0653329B2 (en) | 1994-07-20 |
Family
ID=11480808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62000692A Expired - Fee Related JPH0653329B2 (en) | 1987-01-06 | 1987-01-06 | Tooth receiving jig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0653329B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990860A (en) * | 2014-06-03 | 2014-08-20 | 无锡易通精密机械股份有限公司 | Positioning tool for machining step type gear ring |
| CN108213608A (en) * | 2017-11-29 | 2018-06-29 | 江阴市永兴机械制造有限公司 | A kind of Internal spline gear pitch circle fast-positioning device and its processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4523246Y1 (en) * | 1967-02-08 | 1970-09-12 | ||
| JPS5329881A (en) * | 1976-08-31 | 1978-03-20 | Housou Giken Kk | Bottling machine |
-
1987
- 1987-01-06 JP JP62000692A patent/JPH0653329B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4523246Y1 (en) * | 1967-02-08 | 1970-09-12 | ||
| JPS5329881A (en) * | 1976-08-31 | 1978-03-20 | Housou Giken Kk | Bottling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63169218A (en) | 1988-07-13 |
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