JP2012045675A - Tooth face finishing processing method and processing machine of internal gear - Google Patents

Tooth face finishing processing method and processing machine of internal gear Download PDF

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JP2012045675A
JP2012045675A JP2010190547A JP2010190547A JP2012045675A JP 2012045675 A JP2012045675 A JP 2012045675A JP 2010190547 A JP2010190547 A JP 2010190547A JP 2010190547 A JP2010190547 A JP 2010190547A JP 2012045675 A JP2012045675 A JP 2012045675A
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gear
internal gear
tool
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tooth surface
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Shogo Kato
昭悟 加藤
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ASANO GEAR CO Ltd
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Abstract

PROBLEM TO BE SOLVED: To enable a technology capable of keeping the service life of a tool gear long by a relatively inexpensive processing machine, for shortening processing time with high accuracy and efficiency in finishing processing of an internal gear.SOLUTION: A tool gear 1 of sticking a hard abrasive grain to a gear-shaped base metal surface of a male die fittable to a processing object internal gear 2 with a clearance between their tooth surfaces, is used. The tool gear 1 is inserted between teeth of the processing object internal gear 2, torque in the rotational direction is imparted so as to contact with one side of the tooth surface, and while imparting reciprocating motion in the axial direction between the tool gear 1 and the processing object internal gear 2 in that state, the finishing processing is performed on the tooth surface of the processing object internal gear 2. The reciprocating motion is also set to very small reciprocating motion. Alternatively, in addition to it, tooth surface finishing processing is performed while varying a position in the axial direction between the tool gear 1 and the processing object internal gear 2.

Description

本発明は、例えば自動車のトランスミッションに用いられる遊星歯車機構の部品である内歯車（太陽歯車）の製造工程において、歯切り、塑性加工又は鋳造加工によって成形され、熱処理された後の被加工内歯車の歯面を仕上げするための加工方法、及びその実施に用いる加工機に関するものである。   The present invention relates to an internal gear to be machined after being subjected to heat treatment in a manufacturing process of an internal gear (sun gear) that is a part of a planetary gear mechanism used in, for example, an automobile transmission, by gear cutting, plastic working or casting. The present invention relates to a processing method for finishing the tooth surface and a processing machine used in the processing.

上記自動車用トランスミッションギヤは、低騒音化・高効率化や長寿命化に対応するため、特に高精度に仕上げることが要求されている。トランスミッションギヤの内、外歯車には研削加工，ホーニング仕上げが実施されるようになってきたが、内歯車の仕上げ加工方法については決定的と言える加工技術は未だ確立されていない。   The automobile transmission gear is required to be finished with particularly high precision in order to cope with low noise, high efficiency, and long life. Among the transmission gears, grinding and honing finishes have been carried out on the external gears, but a processing technique that can be said to be decisive has not yet been established with respect to the finish processing method of the internal gears.

近時は外歯車の歯面仕上げで利用されている電着砥石を、被加工内歯車の歯面仕上げに用いた歯車ホーニング仕上げ法の採用が試みられている（後記特許文献１参照）。これは、被加工内歯車に対して軸交差角をもって噛み合う外歯車状工具の歯面に、硬質砥粒を付着させた工具歯車を用いるもので、被加工内歯車の外周方向に押し付けながら回転させ、さらに被加工内歯車を軸方向に往復動させることにより、歯面を削り取る仕上げ加工方法である。   Recently, an attempt has been made to employ a gear honing finishing method in which an electrodeposition grindstone used for tooth surface finishing of an external gear is used for tooth surface finishing of an internal gear to be machined (see Patent Document 1 below). This uses a tool gear with hard abrasive grains attached to the tooth surface of an external gear-like tool that meshes with the internal gear to be machined at an axis crossing angle. Further, this is a finishing method in which the tooth surface is scraped by reciprocating the workpiece internal gear in the axial direction.

他面で近時、ホーニング加工ではなくてビトｃＢＮ８（立方晶窒化ホウ素）製で、樽形ネジ状の砥石を用いた内歯車研削盤も提案されている（後記特許文献２参照）。   Recently, an internal gear grinding machine using a barrel-shaped screw-like grindstone made of Vito cBN8 (cubic boron nitride) instead of a honing process has also been proposed (see Patent Document 2 below).

特開２００８−１１０４２７号公報 ここに記載してあるものは、歯車ホーニング装置に限らず、広く歯車状工具を用いて被加工物の歯面を仕上げ処理する歯車ラップ装置や歯車シェービング装置などの歯車仕上げ装置にも関するものである。この発明は「仕上げ用歯車と被加工用歯車とを噛み合わせ、そのいずれか一方に駆動用モータから駆動トルクを作用させるとともに、他方に対してブレーキトルクを作用させることにより、そのブレーキトルクの大きさに対応する加工負荷を両歯車間に付与するようにした歯車仕上げ装置であって、前記ブレーキトルクを、電磁気力により非接触で生成するブレーキトルク生成手段を備えたことを特徴とする」ものである。JP, 2008-110427, A What is indicated here is not only a gear honing device, but gears, such as a gear lap device and a gear shaving device which finish processing a tooth surface of a work widely using a gear-like tool widely It also relates to finishing equipment. According to the present invention, "the finish gear and the work gear are meshed, and the drive torque is applied to one of them from the drive motor and the brake torque is applied to the other, thereby increasing the magnitude of the brake torque. A gear finishing device that applies a machining load corresponding to the thickness between both gears, and includes brake torque generation means for generating the brake torque in a non-contact manner by electromagnetic force. '' It is.

特開２００９−４５６８１号公報 これは、「内歯車を研削加工するために軸方向両端部から中間部に向かうに従ってその径が漸次増大するように形成された樽形ウオーム状工具に対して、円盤状のディスクドレッサを噛み合わせてドレッシングを行うドレッシング装置であって、鉛直な前記内歯車のワーク回転軸と所定の軸交差角をなす工具回転軸周りに前記樽形ウオーム状工具を回転させる工具回転手段と、前記内歯車のねじれ角と同じ角度で配置されるドレッサ回転軸周りに前記ディスクドレッサを回転させるドレッサ回転手段と、互いに噛み合って回転した状態の前記樽形ウオーム状工具及び前記ディスクドレッサを水平面内において相対的に旋回させる相対旋回手段とを備え」た内歯車研削盤である。JP, 2009-45681, A This is because `` a disc with respect to a barrel-shaped worm-shaped tool formed so that its diameter gradually increases as it goes from an axial end portion to an intermediate portion in order to grind an internal gear. Rotating the barrel-shaped worm-shaped tool around a tool rotation axis that forms a predetermined axis crossing angle with the vertical work rotation axis of the internal gear. Means, a dresser rotating means for rotating the disk dresser around a dresser rotating shaft arranged at the same angle as the torsion angle of the internal gear, It is an internal gear grinding machine provided with a relative turning means for relatively turning in a horizontal plane.

ところが、上記特許文献１のものを含む一般のホーニング加工手段には、次のような問題点がある。
ａ）ホーニング加工では、被加工内歯車と工具歯車との接触が点接触であることから、加工時間が長くなるとともに、工具寿命も短くならざるを得ない。
ｂ）また、ホーニング加工機の構造上から、被加工内歯車と工具歯車間の剛性を高くすることが困難であり、ピッチ誤差の矯正を十分に行える仕上げ加工にならない。
ｃ）さらに、被加工内歯車と工具歯車間の位置関係を高精度に保つ必要があるため、ホーニング加工機の製造コストが高くなっている。 However, the general honing processing means including that of Patent Document 1 has the following problems.
a) In the honing process, since the contact between the workpiece internal gear and the tool gear is a point contact, the machining time becomes long and the tool life must be shortened.
b) In addition, because of the structure of the honing machine, it is difficult to increase the rigidity between the internal gear to be processed and the tool gear, and it is not a finishing process that can sufficiently correct the pitch error.
c) Furthermore, since it is necessary to maintain the positional relationship between the internal gear to be processed and the tool gear with high accuracy, the manufacturing cost of the honing machine is high.

他方、上記特許文献２の内歯車研削盤は、高品質な内歯車の製造を目指したものであるが、樽形のウオーム状工具とディスクドレッサとを用いて、両者を相対的に旋回させるものであり、この内歯車研削盤の製造コストが高いものになっている。   On the other hand, the internal gear grinding machine of the above-mentioned Patent Document 2 aims to manufacture a high-quality internal gear, and uses a barrel-shaped worm-like tool and a disk dresser to relatively rotate both of them. The manufacturing cost of this internal gear grinding machine is high.

本発明は、上記従来技術の問題点の解決を課題としたものである。即ち、本発明の目的は、仕上げ加工精度を高くでき、また加工能率が高くて仕上げ加工時間の短縮を図れるとともに工具寿命を長く保つこともできる内歯車仕上げを、比較的安価な加工機により可能とする技術を提供しようとするものである。   An object of the present invention is to solve the above-mentioned problems of the prior art. That is, the object of the present invention is to enable finishing of internal gears with a relatively inexpensive processing machine, which can increase the finishing accuracy and can improve the processing efficiency, shorten the finishing time, and can also maintain the tool life. It is intended to provide the technology.

Ａ 本発明の第１は、内歯車の歯面仕上げ加工法の１に関するものである（請求項１に対応）。
被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着させた工具歯車１を用いるものであって、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するとともに、
その状態で上記工具歯車１と被加工内歯車２との両者の間で軸方向への往復動を与えながら、被加工内歯車２の歯面を仕上げ加工するようにしたものである。 A 1st of this invention is related with 1 of the tooth surface finishing processing method of an internal gear (corresponding to claim 1).
A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the internal gear 2 to be processed,
The tool gear 1 is inserted between the teeth of the internal gear 2 to be processed, and torque in the rotational direction is applied so that one side of the tooth surface comes into contact with the tooth gear.
In this state, the tooth surface of the internal gear 2 to be processed is finished while giving a reciprocating motion in the axial direction between the tool gear 1 and the internal gear 2 to be processed.

Ｂ 本発明の第２は、上記歯面仕上げ加工法の１を実施する仕上げ加工機である（請求項２に対応）。
被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着させた工具歯車１と、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するトルク付与手段３と、
上記工具歯車１と被加工内歯車２との両者の間に、軸方向への往復動を与える往復動付与手段４とを備えてなるものである。 B 2nd of this invention is a finishing machine which implements 1 of the said tooth surface finishing processing method (corresponding to claim 2).
A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the internal gear 2 to be processed;
A torque applying means 3 for inserting the tool gear 1 between the teeth of the internal gear 2 to be processed and applying torque in the rotational direction so that one side of the tooth surface contacts;
Between the tool gear 1 and the workpiece internal gear 2, reciprocating motion imparting means 4 for reciprocating in the axial direction is provided.

Ｃ 本発明の第３は、内歯車の歯面仕上げ加工法の２に関するものである（請求項３に対応）。
被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着させた工具歯車１を用いるものであって、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するとともに、
その状態で、上記工具歯車１と被加工内歯車２との両者間で軸方向への微小な往復動を与え、
それに加えて、工具歯車１と被加工内歯車２との両者間で軸方向位置を変動させながら被加工内歯車２の歯面を仕上げ加工するようにしたものである。 C 3rd of this invention is related with the tooth surface finishing processing method 2 of an internal gear (corresponding to claim 3).
A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the internal gear 2 to be processed,
The tool gear 1 is inserted between the teeth of the internal gear 2 to be processed, and torque in the rotational direction is applied so that one side of the tooth surface comes into contact with the tooth gear.
In that state, a minute reciprocation in the axial direction is given between both the tool gear 1 and the work internal gear 2,
In addition, the tooth surface of the internal gear 2 to be processed is finished while varying the axial position between the tool gear 1 and the internal gear 2 to be processed.

Ｄ 本発明の第４は、上記歯面仕上げ加工法の２を実施するための仕上げ加工機である（請求項４に対応）。
被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着した工具歯車１と、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するトルク付与手段３と、
上記工具歯車１と被加工内歯車２との両者の間に軸方向への微小な往復動を与える微小往復動付与手段５と、
それに加えて、上記工具歯車１と被加工内歯車２との両者の軸方向位置を変動させる位置変動手段６とを備えてなるものである。 D 4th of this invention is a finishing machine for implementing said tooth surface finishing processing method 2 (corresponding to claim 4).
A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the workpiece internal gear 2;
A torque applying means 3 for inserting the tool gear 1 between the teeth of the internal gear 2 to be processed and applying torque in the rotational direction so that one side of the tooth surface contacts;
A micro reciprocating motion imparting means 5 for imparting a micro reciprocating motion in the axial direction between the tool gear 1 and the work internal gear 2;
In addition, position variation means 6 for varying the axial position of both the tool gear 1 and the work internal gear 2 is provided.

上記各構成において、被加工内歯車２と工具歯車１とは逆の位置でもよい。即ち、軸方向へ往復動したり、回転方向のトルクを付与されるのは、上記被加工内歯車２としてもよいし、工具歯車１としてもよい。（例えば図１と図２を参照）。   In each of the above configurations, the internal gear 2 to be processed and the tool gear 1 may be in opposite positions. That is, the reciprocating motion in the axial direction or the torque in the rotational direction may be applied to the internal gear 2 to be processed or the tool gear 1. (See, for example, FIGS. 1 and 2).

本発明によれば、被加工内歯車２の歯面が工具歯車１の歯面に押し付けられた状態で軸方向へ往復動しながら、被加工内歯車２の歯面が硬質砥粒付き表面の工具歯車１の歯面に沿った形状に仕上げられる。   According to the present invention, while the tooth surface of the internal gear 2 to be processed is reciprocated in the axial direction while being pressed against the tooth surface of the tool gear 1, the tooth surface of the internal gear 2 to be processed is a surface with hard abrasive grains. A shape along the tooth surface of the tool gear 1 is finished.

そのため、
イ）工具歯車１の形状が被加工内歯車２に転写されることになるので、工具歯車１以外の構成はそれ程の高精度は必要がなくなり、安価な設備で仕上げ加工することができる。 for that reason,
B) Since the shape of the tool gear 1 is transferred to the internal gear 2 to be processed, the configuration other than the tool gear 1 does not need such high accuracy, and can be finished with inexpensive equipment.

ロ）ここでの歯面間の面圧は、トルク付与用手段３としてのトルク付与モータ１６の制御により精度良く付与できるから、加工効率と工具寿命に適切な条件の下で仕上げ加工が行えるし、仕上げ加工精度を高くできる。   B) The surface pressure between the tooth surfaces here can be applied with high precision by the control of the torque application motor 16 as the torque application means 3, so that finishing can be performed under conditions suitable for machining efficiency and tool life. , High finishing accuracy can be achieved.

ハ）また、工具歯車１の片側の歯面全体が被加工内歯車と接触するので、仕上げ加工能率が高いものになるとともに、仕上げ加工時間の短縮を図れて、工具寿命を長く保つこともできる。   C) Further, since the entire tooth surface on one side of the tool gear 1 is in contact with the internal gear to be machined, the finishing efficiency is high, and the finishing time can be shortened and the tool life can be kept long. .

ニ）さらに、被加工内歯車２の片側の歯面を仕上げた後、トルク付与手段３としての例えばトルク付与のモータを逆方向へ回転してトルクの方向を反転させることで、被加工内歯車２の他側の歯面を仕上げられるから、この面からも、仕上げ加工時間の短縮を図れるとともに、工具寿命を長く保つことができる。   D) Further, after finishing the tooth surface on one side of the internal gear 2 to be processed, the internal gear to be processed is rotated by rotating the torque applying motor 3 as the torque applying means 3 in the reverse direction to reverse the direction of the torque. Since the tooth surface on the other side of 2 can be finished, the finishing time can be shortened and the tool life can be kept long from this surface.

ホ）工具歯車１の歯面に修正形状を与えることにより、被加工内歯車２を所望の歯面形状に成形することができる。またここでの被加工内歯車２は、平歯車に限らず、歯筋が捩じれているハスバ歯車でも良い。この場合に、軸方向の往復動に応じて被加工内歯車２が捩じれに対応する分だけ回転することになるが、所定のトルクは保持されており、同様の仕上げ加工を行うことができる。   E) By giving a modified shape to the tooth surface of the tool gear 1, the internal gear 2 to be processed can be formed into a desired tooth surface shape. Further, the internal gear 2 to be processed here is not limited to a spur gear, but may be a helical gear in which tooth traces are twisted. In this case, although the internal gear 2 to be processed rotates by an amount corresponding to the torsion according to the reciprocating motion in the axial direction, a predetermined torque is maintained, and the same finishing can be performed.

ト）上記に加えて、本発明の上記第３および第４のものでは、工具歯車１側または被加工内歯車側の軸方向への往復動を微小なものにする構成にし、かつ工具歯車１と被加工内歯車２の両者が軸方向の位置を変動可能な構成としてある。これにより、工具歯車１と被加工内歯車２との接触位置を変動させられるから、より良好な歯面粗さ（歯面粗度）で仕上げ加工をすることができる。   G) In addition to the above, the third and fourth embodiments of the present invention have a configuration in which the reciprocation in the axial direction on the tool gear 1 side or the internal gear to be processed is made minute, and the tool gear 1 And the work internal gear 2 are configured such that the position in the axial direction can be varied. Thereby, since the contact position of the tool gear 1 and the to-be-processed internal gear 2 is fluctuate | varied, it can finish with a more favorable tooth surface roughness (tooth surface roughness).

本発明に係る歯面仕上げ加工法の１を実施するための仕上げ加工機を示す一部切欠き正面図である。It is a partially notched front view which shows the finishing machine for implementing 1 of the tooth surface finishing method which concerns on this invention. 図１で示した仕上げ加工機の変形例を示す一部切欠き正面図である。It is a partially cutaway front view which shows the modification of the finishing machine shown in FIG. 本発明に係る歯面仕上げ加工法の２を実施するための仕上げ加工機を示す一部切欠き正面図である。It is a partially notched front view which shows the finishing machine for implementing 2 of the tooth surface finishing processing method which concerns on this invention. 図３で示した仕上げ加工機の変形例を示す一部切欠き正面図である。It is a partially cutaway front view which shows the modification of the finishing machine shown in FIG.

本発明に係る被加工内歯車の歯面仕上げ加工法では、雄型の歯車状台金表面に硬質砥粒を付着した工具歯車１を、被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与した状態で、上記工具歯車１と被加工内歯車２との両者の間で軸方向の往復動を与えながら、被加工内歯車２の歯面を仕上げ加工する。また工具歯車１または被加工内歯車２に微小往復動させ、加えて上記工具歯車１と被加工内歯車２との両者の軸方向位置を変動させるようにしながら、被加工内歯車２の歯面を仕上げ加工する。   In the tooth surface finishing method of the internal gear to be processed according to the present invention, the tool gear 1 having hard abrasive grains attached to the surface of the male gear-shaped base metal is inserted between the teeth of the internal gear 2 to be processed, While applying torque in the rotational direction so that one side of the tooth surface is in contact, the reciprocating motion in the axial direction is applied between the tool gear 1 and the internal gear 2 to be processed. Finish the tooth surface. Further, the tool gear 1 or the work internal gear 2 is slightly reciprocated and, in addition, the axial positions of both the tool gear 1 and the work internal gear 2 are changed, while the tooth surface of the work internal gear 2 is changed. Finish processing.

イ）図１は、上記本発明に係る仕上げ加工法の１を実施するための仕上げ加工機の一例を示す。
７は基台を示し、その上面に後記回転軸１１の軸方向と同方向へ往復動可能な可動機台８を載置して、該可動機台８上部に、被加工内歯車２用の保持装置９を設けてあり、かつそれと対向するように同じく基台７上に、工具歯車１を軸装用の固定機台１０を設けてある。 1) FIG. 1 shows an example of a finishing machine for carrying out the finishing method 1 according to the present invention.
Reference numeral 7 denotes a base, on which a movable machine base 8 capable of reciprocating in the same direction as the axial direction of the rotary shaft 11 is placed, and an upper portion of the movable machine base 8 for the internal gear 2 to be processed is placed. A holding device 9 is provided, and a fixed base 10 for shaft mounting the tool gear 1 is also provided on the base 7 so as to face the holding device 9.

上記被加工内歯車用の保持装置９は、可動機台８上に固定してあり、その上半部内にここではテーパーコロ軸受部１２により回転軸１１を水平状に軸支し、該回転軸１１の側端部にチャック機構１３を設けて、被加工内歯車２を保持可能としてある。軸受部はテーパーコロ軸受に限るものではない。   The holding device 9 for the internal gear to be processed is fixed on the movable machine base 8, and the rotary shaft 11 is horizontally supported by a tapered roller bearing portion 12 in the upper half of the holding device 9. A chuck mechanism 13 is provided at a side end portion of 11 so that the internal gear 2 to be processed can be held. The bearing portion is not limited to the tapered roller bearing.

また回転軸１１にはトルク付与手段３を設けてある。これは該回転軸１１の他側部寄りに伝動用の平歯車１５を軸装し、それに噛合する平歯車１４を上記可動機台８上のトルク付与用モータ１６で可回転としてある。   The rotating shaft 11 is provided with torque applying means 3. In this arrangement, a transmission spur gear 15 is mounted near the other side of the rotating shaft 11, and a spur gear 14 that meshes with the spur gear 15 is rotated by a torque application motor 16 on the movable machine base 8.

他方、工具歯車保持用の固定機台１０の上部には、縦断面Ｌ型状の軸支部材１７を設けて、上記チャック機構１３で保持される被加工内歯車２に対向する如く、工具歯車１を軸装・固定してある。   On the other hand, an L-shaped shaft support member 17 is provided at the upper part of the fixed machine base 10 for holding the tool gear so that the tool gear is opposed to the work internal gear 2 held by the chuck mechanism 13. 1 is mounted and fixed.

該工具歯車１は、被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の台金表面に硬質砥粒、ここでは平均粒径が約３００μｍのダイヤモンド砥粒を電着したものを用いている。この硬質砥粒は、それに限らず例えばＣＢＮ（立方晶窒化硼素）をメタル質ポンドで付着させたものでもよい。   The tool gear 1 is composed of hard abrasive grains on the surface of a male base metal that can be fitted with a gap between tooth surfaces with the work internal gear 2. Here, a diamond abrasive having an average grain diameter of about 300 μm. The electrodeposited grains are used. The hard abrasive grains are not limited thereto, and for example, CBN (cubic boron nitride) may be adhered with metal ponds.

そして上記可動機台８には、工具歯車１との間で被加工内歯車２に軸方向への往復動を与えるために往復動付与手段４を設けてある。ここでの往復動付与手段４は、上記基台７上に設けた往復動付与用のモータ１８にて回転するボールネジ１９を横設し、該ボールネジ１９の他端部を上記可動機台８に連結してある。これにより、可動機台８が基台７上で往復移動が可能となり、上記被加工内歯車２を工具歯車１との間で軸方向への往復動が可能としてある。ここでは±２ｍｍ程度の往復動をするようしてある。   The movable machine base 8 is provided with a reciprocating motion imparting means 4 for imparting a reciprocating motion in the axial direction to the internal gear 2 to be machined with the tool gear 1. The reciprocating motion imparting means 4 here has a ball screw 19 that is rotated by a reciprocating motion imparting motor 18 provided on the base 7, and the other end of the ball screw 19 is attached to the movable machine base 8. It is connected. As a result, the movable machine base 8 can reciprocate on the base 7, and the work internal gear 2 can reciprocate in the axial direction with the tool gear 1. Here, the reciprocation is about ± 2 mm.

ロ）次に、上記実施例１の加工機を用いた場合の使用状態を説明する。
歯切り、塑性加工又は鋳造加工によって成形され、焼き入れ後の被加工内歯車２を、被加工内歯車用の保持装置９におけるチャック機構１３にて保持させる。次に可動機台８を基台７上で移動させ、チャック機構１３で保持された被加工内歯車２を、対向する位置に設けた工具歯車１との間で歯面間に隙間をもって嵌合する位置へセットする。 B) Next, the state of use when the processing machine of the first embodiment is used will be described.
The internal gear 2 to be processed, which is formed by gear cutting, plastic processing or casting, and is quenched is held by the chuck mechanism 13 in the holding device 9 for the internal gear to be processed. Next, the movable machine base 8 is moved on the base 7, and the work internal gear 2 held by the chuck mechanism 13 is fitted with a gap between the tooth surfaces with the tool gear 1 provided at the opposite position. Set to the position to be used.

そして、トルク付与手段３としてトルク付与用のモータ１６を一方向へ回転させると伝動用の平歯車１４，１５と回転軸１１を介して被加工内歯車２に回転トルクが付与され、固定した工具歯車１との間で、歯面間に面圧が加わることになる。この状態で、上記往復動付与手段４のボールネジ１９を一定範囲で正・逆回転させると、可動基台７・被加工内歯車用保持８のチャック機構１３を介して、被加工内歯車２が軸線上を±２ｍｍ程度で往復動する。   When the torque applying motor 16 is rotated in one direction as the torque applying means 3, rotational torque is applied to the internal gear 2 to be processed via the transmission spur gears 14 and 15 and the rotating shaft 11, and the tool is fixed. Surface pressure is applied between the tooth surfaces of the gear 1. In this state, when the ball screw 19 of the reciprocating motion imparting means 4 is rotated forward / reversely within a certain range, the internal gear 2 to be processed is moved via the chuck mechanism 13 of the movable base 7 and the internal gear holder 8 to be processed. Reciprocates about ± 2mm on the axis.

これにより、被加工内歯車２の歯面が工具歯車１の歯面に押し付けられた状態で軸方向へ往復移動するから、被加工内歯車２の歯面が硬質砥粒付き表面の工具歯車１の歯面に沿った形状に仕上げられることになる。   As a result, the tooth surface of the internal gear 2 to be processed reciprocates in the axial direction while being pressed against the tooth surface of the tool gear 1, so that the tooth surface of the internal gear 2 to be processed is a tool gear 1 having a surface with hard abrasive grains. It will be finished in a shape along the tooth surface.

被加工内歯車２の片側の歯面を仕上げた後は、上記トルク付与モータ１６を逆方向へ回転してトルクの方向を反転し、上記と同様にして被加工内歯車２の他側の歯面を仕上げればよい。ここでの歯面間の面圧は、上記トルク付与モータ１６の制御により精度良く付与できるから、加工効率と工具寿命に適切な条件の下で仕上げ加工が行える。   After finishing the tooth surface on one side of the internal gear 2 to be processed, the torque applying motor 16 is rotated in the reverse direction to reverse the direction of the torque, and the tooth on the other side of the internal gear 2 to be processed is similar to the above. Just finish the surface. Since the surface pressure between the tooth surfaces can be applied with high accuracy by the control of the torque applying motor 16, finishing can be performed under conditions suitable for processing efficiency and tool life.

この方法および加工機によれば、工具歯車１の歯面形状が被加工内歯車２の歯面形状に転写されることになるので、工具歯車以外の構成はそれ程の高精度が不要であり、安価な設備で仕上げ加工することができる。工具歯車１の歯面に修正形状を与えることにより、被加工内歯車２の歯面形状に成形することができる。しかも工具歯車１の片側の歯面全体が被加工内歯車と接触するので、加工能率が高いものになっている。   According to this method and the processing machine, since the tooth surface shape of the tool gear 1 is transferred to the tooth surface shape of the internal gear 2 to be processed, the configuration other than the tool gear does not require such high accuracy. It can be finished with inexpensive equipment. By giving a corrected shape to the tooth surface of the tool gear 1, the tooth surface of the internal gear 2 to be processed can be formed. Moreover, since the entire tooth surface on one side of the tool gear 1 is in contact with the internal gear to be machined, the machining efficiency is high.

なお、被加工内歯車２は、平歯車に限らず、歯筋が捩じれているハスバ歯車でも良い。その場合、軸方向の往復動に応じて被加工内歯車が捩じれに対応する分だけ回転することになるが、所定のトルクは保持されており、同様の仕上げ加工が行われる。   Note that the internal gear 2 to be processed is not limited to a spur gear, and may be a helical gear with a tooth trace twisted. In that case, the internal gear to be processed rotates by an amount corresponding to the torsion according to the reciprocating motion in the axial direction, but the predetermined torque is maintained and the same finishing process is performed.

イ）図２は、上記実施例１の変形例としての加工機を示すものであり、被加工内歯車２と工具歯車１との設置位置を逆にしたものである。相違点を中心に説明すると、基台７上面に水平方向へ往復動可能とした可動機台８の上部で回転軸１１を軸支して、該回転軸１１の側端部に工具歯車１を軸装可能し、他方、同じく固定機台９上に固定機台１０を設けて、その上部の縦断面Ｌ型状の軸支部材１７を介して、工具歯車１と対向するように被加工内歯車２用のチャック機構１３を設けてある。   B) FIG. 2 shows a processing machine as a modification of the first embodiment, in which the installation positions of the internal gear 2 to be processed and the tool gear 1 are reversed. The difference will be mainly described. The rotary shaft 11 is pivotally supported on the upper surface of the movable base 8 that can reciprocate in the horizontal direction on the upper surface of the base 7, and the tool gear 1 is attached to the side end of the rotary shaft 11. On the other hand, a fixed machine base 10 is also provided on the fixed machine base 9, and the inside of the work piece is opposed to the tool gear 1 via a shaft support member 17 having an L-shaped longitudinal section on the upper part. A chuck mechanism 13 for the gear 2 is provided.

ここでの該工具歯車１も上記と同様のものを用いており、また回転軸１１の他側部寄りには、トルク付与モータ１６で回転可能な平歯車１４と噛合する平歯車１５を軸装してある。   The tool gear 1 used here is also the same as described above, and a spur gear 15 that meshes with a spur gear 14 that can be rotated by a torque applying motor 16 is axially mounted near the other side of the rotary shaft 11. It is.

そして、上記可動機台８を往復移動可能とするために、基台７上に設けたモータ１８にて回転するボールネジ１９の他端部を上記可動機台８に連結して、工具歯車１を回転軸１１の軸方向へ往復動可能としてある。   In order to make the movable machine base 8 reciprocally movable, the other end of a ball screw 19 that is rotated by a motor 18 provided on the base 7 is connected to the movable machine base 8, and the tool gear 1 is moved. A reciprocating motion is possible in the axial direction of the rotating shaft 11.

ロ）この実施例２の加工機を用いた場合の使用状態は、上記実施例１についての使用状態と比べて、被加工内歯車２と工具歯車１との位置・方向が逆である以外は同じである。上記実施例１の場合と異なり工具歯車１が回転軸１１の軸方向へ往復動可能となっているが、同様の仕上げ加工がなされるので、重複を避けるために記載は省略する。   B) The use state when the processing machine of the second embodiment is used except that the position and direction of the internal gear 2 to be processed and the tool gear 1 are opposite to those in the first embodiment. The same. Unlike the case of the first embodiment, the tool gear 1 can be reciprocated in the axial direction of the rotary shaft 11, but the same finishing is performed, so the description is omitted to avoid duplication.

イ）図３は、本発明に係る仕上げ加工法の２を実施するための仕上げ加工機の一例を示すものである。
７は基台を示し、その上面に後記回転軸１１の軸方向と同方向へ往復動可能な可動機台８を載置して、該可動機台８上部に、被加工内歯車２用の保持装置９を設けてあり、かつそれと対向するように上記基台７上に工具歯車１用の固定機台１０を設けてある。 B) FIG. 3 shows an example of a finishing machine for carrying out the finishing method 2 according to the present invention.
Reference numeral 7 denotes a base, on which a movable machine base 8 capable of reciprocating in the same direction as the axial direction of the rotary shaft 11 is placed, and an upper portion of the movable machine base 8 for the internal gear 2 to be processed is placed. A holding device 9 is provided, and a fixed machine base 10 for the tool gear 1 is provided on the base 7 so as to face the holding device 9.

上記被加工内歯車２用の保持装置９は、上記実施例１で示したものと同様で、可動機台８上に固定してあり、その上半部内にここでもテーパーコロの軸受部１２により回転軸１１を水平状に軸支してある。該回転軸１１の側端部には、被加工内歯車２を保持用のチャック機構１３を設けてある。そして該回転軸１１の他側部寄りに伝動用の平歯車１５を軸装してあり、可動機台８上に設けたトルク付与モータ１６で回転する平歯車１４と噛合させてある。   The holding device 9 for the internal gear 2 to be processed is the same as that shown in the first embodiment, and is fixed on the movable machine base 8, and here also in the upper half portion by the bearing portion 12 of the tapered roller. The rotating shaft 11 is supported horizontally. A chuck mechanism 13 for holding the internal gear 2 to be processed is provided at the side end of the rotating shaft 11. A transmission spur gear 15 is mounted near the other side of the rotating shaft 11 and meshed with a spur gear 14 that is rotated by a torque applying motor 16 provided on the movable machine base 8.

他方、工具歯車保持用の固定機台１０には、その上部に、回転軸１１の軸方向と同方向へ往復動可能に可動機台２０を載置するとともに、該可動機台２０の上部に、ここでも縦断面Ｌ型状の被加工内歯車用の軸支部材１７を設け、該保持部材１７の側部で上記被加工内歯車保持装置９のチャック機構１３に対向する側に、上記回転軸１１と同一軸線上に工具歯車１を軸装してある。該工具歯車１も上記と同様に、被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の台金表面に、ダイヤモンド砥粒を電着したものを用いている。   On the other hand, on the fixed machine base 10 for holding the tool gears, a movable machine base 20 is placed on the upper part of the fixed machine base 10 so as to be reciprocable in the same direction as the axial direction of the rotary shaft 11. Also here, a shaft support member 17 for an internal gear to be processed having an L-shaped vertical cross section is provided, and the rotation is performed on the side of the holding member 17 facing the chuck mechanism 13 of the internal gear holding device 9 to be processed. The tool gear 1 is mounted on the same axis as the shaft 11. In the same manner as above, the tool gear 1 is also used in which diamond abrasive grains are electrodeposited on the surface of a male base metal that can be fitted with a gap between the tooth surfaces with the workpiece internal gear 2. ing.

そして、上記軸支部材１７の他端部に、微小往復動用機構としてのスライダークランク２１の一端部を連結し、該クランク２１の他端部を固定機台１０上に設置した微小往復動付与用のモータ２２の軸に連結して、上記可動機台２０が固定機台１０上で微小往復動可能としてある。これで、工具歯車１を被加工内歯車２との間で軸方向へ高速で微小往復動可能となっている。ここでは周波数２０Ｈｚで±０．２ｍｍ程度の高速微小往復動を行うようにしてある。   Then, one end of a slider crank 21 as a micro reciprocating mechanism is connected to the other end of the shaft support member 17, and the other end of the crank 21 is installed on the fixed machine base 10 for providing micro reciprocating motion. The movable machine base 20 is connected to the shaft of the motor 22 so that it can reciprocate slightly on the fixed machine base 10. Thus, the tool gear 1 can be reciprocated at a high speed in the axial direction between the tool gear 1 and the work internal gear 2. Here, high-speed micro reciprocation of about ± 0.2 mm is performed at a frequency of 20 Hz.

さらにこの実施例では、上記被加工内歯車保持装置全体を、軸方向へ移動可能に位置変動手段６を設けてある。この位置変動手段６は、上記基台７上に移動可能に設けた被加工内歯車２用の保持装置９側の可動機台８に、基台７上に設けた位置変動用のモータ２３にて回転するボールネジ２４の他端部を連結したものである。これにより、被加工内歯車用の保持装置９を乗せた上記可動機台８が基台７上で位置を可変としてある。   Further, in this embodiment, the position variation means 6 is provided so that the entire internal gear holding device to be processed can be moved in the axial direction. The position changing means 6 is connected to a movable machine base 8 on the holding device 9 side for the internal gear 2 to be machined provided on the base 7 so as to move to a position changing motor 23 provided on the base 7. The other end of the rotating ball screw 24 is connected. Thereby, the position of the movable machine base 8 on which the holding device 9 for the internal gear to be processed is placed is variable on the base 7.

ロ）次に、この実施例３の加工機を用いた場合の使用状態を説明する。
歯切り、塑性加工又は鋳造加工によって成形され、焼き入れ後の被加工内歯車２を、被加工内歯車用の保持装置９としてのチャック機構１３にて保持させる。次にこの側の可動機台８を基台７上で移動させて、上記被加工内歯車２を、対向する位置にある加工歯車１との間で歯面間に隙間をもって嵌合する位置にセットする。 B) Next, the state of use when the processing machine of the third embodiment is used will be described.
The internal gear 2 to be processed, which is formed by gear cutting, plastic processing or casting and is quenched, is held by a chuck mechanism 13 as a holding device 9 for the internal gear to be processed. Next, the movable machine base 8 on this side is moved on the base 7 so that the above-described internal gear 2 is engaged with the processing gear 1 located at the opposite position with a gap between the tooth surfaces. set.

そしてトルク付与モータ１６を一方向へ回転させると、伝動用の平歯車１４，１５と回転軸１１を介して被加工内歯車２に回転トルクが付与され、固定した加工歯車１との間で、歯面間に面圧が加わることになる。この状態で、工具歯車１側の固定機台１０上に設けた微小往復動用のモータ２２が回転すると、スライダークランク２１が微小往復動して、上記可動機台２０と工具歯車用の軸支部材１７を介して工具歯車１が軸方向へ微小な往復動を行うことになる。そのため、工具歯車１が被加工内歯車２との間で軸方向へ、ここでは±０．２ｍｍ程度で２０Ｈｚの周波数で高速微小往復動することになる。   When the torque application motor 16 is rotated in one direction, rotational torque is applied to the internal gear 2 to be processed via the transmission spur gears 14 and 15 and the rotary shaft 11, and between the fixed processing gear 1, Surface pressure is applied between the tooth surfaces. In this state, when the motor 22 for fine reciprocation provided on the stationary machine base 10 on the tool gear 1 side rotates, the slider crank 21 reciprocates finely, and the movable machine base 20 and the shaft support member for the tool gear. The tool gear 1 performs a minute reciprocating motion in the axial direction via 17. Therefore, the tool gear 1 reciprocates at a high speed with respect to the workpiece internal gear 2 in the axial direction, here, at a frequency of about ± 0.2 mm and a frequency of 20 Hz.

このように、被加工内歯車２の歯面が工具歯車１の歯面に押し付けられた状態で軸方向へ移動するので、被加工内歯車２の歯面が硬質砥粒付き表面の工具歯車１の歯面に沿った形状が効率よく仕上げられることになる。またこの実施例では、工具歯車１を高速微小往復動させているので、往復動に伴う振動現象が生じず、一層効率良く即ち加工時間を短縮して仕上げ加工が行われる。その他の点は上記実施例１や２とほぼ同様である。   In this way, since the tooth surface of the internal gear 2 to be processed moves in the axial direction while being pressed against the tooth surface of the tool gear 1, the tooth surface of the internal gear 2 to be processed is a tool gear 1 having a surface with hard abrasive grains. The shape along the tooth surface is efficiently finished. Further, in this embodiment, since the tool gear 1 is reciprocated at a high speed and minute, no vibration phenomenon due to the reciprocation occurs, and the finishing process is performed more efficiently, that is, the machining time is shortened. The other points are almost the same as in the first and second embodiments.

それに加えてこの実施例では、上記被加工内歯車用の保持装置９の全体を軸方向へ移動可能に、基台７上の可動機台８を位置変動用モータ２３で回転するボールネジ２４に連結してある。そのため、被加工内歯車２用の保持装置９全体を可動機台８の移動に伴って所望量だけ移動させることができ、工具歯車１に対する被加工内歯車２の軸方向の位置を変えて接触位置を変動できるから、より良好な歯面の面粗度で仕上げ加工をすることができる。   In addition, in this embodiment, the movable machine base 8 on the base 7 is connected to a ball screw 24 rotated by a position change motor 23 so that the entire holding device 9 for the internal gear to be processed can be moved in the axial direction. It is. Therefore, the entire holding device 9 for the internal gear 2 to be processed can be moved by a desired amount as the movable table 8 moves, and the axial position of the internal gear 2 to be processed with respect to the tool gear 1 is changed and contacted. Since the position can be changed, finishing can be performed with better surface roughness of the tooth surface.

イ）図４で示す実施例は上記実施例３の変形例を示すものであり、被加工内歯車２と工具歯車１との位置を逆にしたものであり、相違点を中心に説明する。基台７上面に後記回転軸１１の軸方向と同方向へ往復動可能な可動機台８を載置して、該可動機台８上部に、ここでは工具歯車１用の保持装置９を設けてあり、かつそれと対向するように同じく基台７上に被加工内歯車２用の固定機台１０を設けてある。   4) The embodiment shown in FIG. 4 shows a modified example of the above-described embodiment 3, in which the positions of the work internal gear 2 and the tool gear 1 are reversed, and differences will be mainly described. A movable machine base 8 capable of reciprocating in the same direction as the axial direction of the rotary shaft 11 is placed on the upper surface of the base 7, and a holding device 9 for the tool gear 1 is provided on the upper part of the movable machine base 8. The fixed machine base 10 for the internal gear 2 to be machined is also provided on the base 7 so as to be opposed thereto.

上記可動機台８上の工具歯車１用の保持装置９は、上半部内の軸受部１２により回転軸１１を水平状に軸支してあり、該回転軸１１の側端部には工具歯車１を軸装してある。該工具歯車１はここでも上記と同様のものを用いており、また該回転軸１１の他側部寄りには、上記可動機台８上のトルク付与モータ１６で回転可能としてある。   The holding device 9 for the tool gear 1 on the movable machine base 8 supports a rotating shaft 11 horizontally by a bearing portion 12 in the upper half, and a tool gear is provided at a side end portion of the rotating shaft 11. 1 is mounted. The tool gear 1 is the same as that described above, and can be rotated by the torque application motor 16 on the movable machine base 8 near the other side of the rotary shaft 11.

他方、上記被加工内歯車２の固定機台１０上部に、上記回転軸１１の軸線と同方向へ往復動可能に可動機台２０を載置してあり、該可動機台１０上部に縦断面Ｌ型状の被加工内歯車２用の軸支部材１７を設けて、上記工具歯車用の保持装置９の工具歯車１に対向する如く、被加工内歯車２を保持用のチャック機構１３を設けてある。   On the other hand, a movable machine base 20 is mounted on the upper part of the fixed machine base 10 of the internal gear 2 to be machined so as to be reciprocable in the same direction as the axis of the rotary shaft 11. A support member 17 for the L-shaped internal gear 2 to be processed is provided, and a chuck mechanism 13 for holding the internal gear 2 to be processed is provided so as to face the tool gear 1 of the holding device 9 for the tool gear. It is.

そして、該被加工内歯車用の軸支部材１７の他端部に、微小往復動用手段としてスライダークランク２１の一端部を連結し、該クランク２１の他端部を、固定機台２０上に設置した微小往復動付与モータ２２の軸に連結して、上記可動機台２０が固定機台１０上で微小往復動を可能としてある。これで、被加工内歯車２を工具歯車１に対して軸方向へ、±０．２ｍｍ程度で２０Ｈｚの周波数で高速微小往復動できるようにしてある。   Then, one end of a slider crank 21 is connected to the other end of the shaft support member 17 for the internal gear to be processed as a means for minute reciprocation, and the other end of the crank 21 is installed on the fixed machine base 20. The movable machine base 20 is connected to the shaft of the fine reciprocating motion applying motor 22 so as to enable a fine reciprocating movement on the fixed machine base 10. Thus, the workpiece internal gear 2 can be reciprocated at a high speed by a frequency of about ± 0.2 mm and a frequency of 20 Hz in the axial direction relative to the tool gear 1.

さらにこの実施例でも、上記工具歯車１用の保持装置９全体を、軸方向へ移動可能に位置変動手段６を設けてある。この位置変動手段６は、上記基台７上に移動可能に設けた可動機台８に、同じく基台７上に設けた位置変動用のモーター２３で回転するボールネジ２４の他端部を連結したものである。これにより、工具歯車１用の保持装置９を乗せた可動機台８が、基台７上で移動可能としてある。   Furthermore, in this embodiment, the position variation means 6 is provided so that the entire holding device 9 for the tool gear 1 can be moved in the axial direction. This position changing means 6 is connected to the movable machine base 8 movably provided on the base 7 and the other end of the ball screw 24 rotated by the position changing motor 23 also provided on the base 7. Is. Thereby, the movable machine base 8 on which the holding device 9 for the tool gear 1 is placed is movable on the base 7.

ロ）この実施例４の加工機を用いた場合の使用状態は、上記実施例３についての使用状態と比べて、被加工内歯車２と工具歯車１との位置・方向が逆である以外は同じである。上記実施例３の場合と異なり、被加工内歯車２側が高速微小往復動し、工具歯車１側が軸方向への位置を変更可能となっているが、それに伴う作用・効果は上記実施例３とほぼ同様であり、重複を避けるために詳細は省略する。   B) The use state when using the processing machine of the fourth embodiment is different from the use state of the third embodiment except that the position and direction of the work internal gear 2 and the tool gear 1 are opposite. The same. Unlike the case of the third embodiment, the internal gear 2 side to be machined reciprocates at a high speed and the position of the tool gear 1 side in the axial direction can be changed. The details are omitted to avoid duplication.

なお、上記いずれの実施例でも、トルク付与手段３，往復動付与手段４，微小往復動付与手段５，位置変動手段６において、動力の伝達には上記の歯車，ボールネジ，クランクに限らず、チエーン、カム，その他で高精度に動力を伝達できる機構ならばそれを用いてもよい。   In any of the above-described embodiments, in the torque applying means 3, the reciprocating motion applying means 4, the minute reciprocating motion applying means 5, and the position changing means 6, the power transmission is not limited to the gears, ball screws, and cranks described above. Any mechanism that can transmit power with high accuracy using a cam or the like may be used.

１−工具歯車
２−被加工内歯車
３−トルク付与手段
４−往復動付与手段
５−微小往復動付与手段
６−位置変動手段
７−基台
８−可動機台
９−保持装置
１０−固定機台
１１−回転軸
１２−軸受部
１３−チャック機構
１４−歯車
１５−歯車
１６−トルク付与モータ
１７−軸支部材
１８−往復動付与モータ
１９−ボールネジ
２０−可動機台
２１−スライダークランク
２２−モータ
２３−モータ
２４−ボールネジ 1-tool gear 2-working internal gear 3-torque imparting means 4-reciprocating motion imparting means 5-micro reciprocating motion imparting means 6-position changing means 7-base 8-movable machine base 9-holding device 10-fixing machine Table 11-Rotating shaft 12-Bearing portion 13-Chuck mechanism 14-Gear 15-Gear 16-Torque imparting motor 17-Shaft support member 18-Reciprocating motor 19-Ball screw 20-Movable machine base 21-Slider crank 22-Motor 23-Motor 24-Ball screw

Claims (4)

被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着させた工具歯車１を用いるものであり、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するとともに、
その状態で上記工具歯車１と被加工内歯車２との両者の間で軸方向への往復動を与えながら、被加工内歯車２の歯面を仕上げ加工するようにしたことを特徴とする、内歯車の歯面仕上げ加工方法。 A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the internal gear 2 to be processed is used.
The tool gear 1 is inserted between the teeth of the internal gear 2 to be processed, and torque in the rotational direction is applied so that one side of the tooth surface comes into contact with the tooth gear.
In this state, the tooth surface of the internal gear 2 to be processed is finished while giving a reciprocating motion in the axial direction between the tool gear 1 and the internal gear 2 to be processed. Tooth surface finishing method for internal gears. 請求項１に記載の内歯車の歯面仕上げ加工方法の実施に用いる加工機であって、
被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着させた工具歯車１と、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するトルク付与手段３と、
上記工具歯車１と被加工内歯車２との両者の間に、軸方向への往復動を与える往復動付与手段４とを備えたことを特徴とする、内歯車の歯面仕上げ加工機。 A processing machine used for carrying out the method for finishing a tooth surface of an internal gear according to claim 1,
A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the internal gear 2 to be processed;
A torque applying means 3 for inserting the tool gear 1 between the teeth of the internal gear 2 to be processed and applying torque in the rotational direction so that one side of the tooth surface contacts;
A tooth surface finishing machine for an internal gear, comprising reciprocating motion imparting means (4) for reciprocating in the axial direction between both the tool gear (1) and the workpiece internal gear (2). 被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着させた工具歯車１を用いるものであって、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するとともに、
その状態で、上記工具歯車１と被加工内歯車２との両者間で軸方向への微小な往復動を与え、
それに加えて、工具歯車１と被加工内歯車２との両者間で軸方向位置を変動させながら被加工内歯車２の歯面を仕上げ加工するようにしたことを特徴とする、内歯車の歯面仕上げ加工方法。 A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the internal gear 2 to be processed,
The tool gear 1 is inserted between the teeth of the internal gear 2 to be processed, and torque in the rotational direction is applied so that one side of the tooth surface comes into contact with the tooth gear.
In that state, a minute reciprocation in the axial direction is given between both the tool gear 1 and the work internal gear 2,
In addition, the tooth surface of the internal gear is characterized in that the tooth surface of the internal gear 2 to be processed is finished while changing the axial position between the tool gear 1 and the internal gear 2 to be processed. Surface finishing method. 請求項３に記載の内歯車の歯面仕上げ加工方法の実施に用いる加工機であって、
被加工内歯車２との間で歯面間に隙間を有して嵌合可能な雄型の歯車状台金表面に硬質砥粒を付着した工具歯車１と、
上記工具歯車１を被加工内歯車２の歯の間に挿入して、歯面の一方側が接触するように回転方向のトルクを付与するトルク付与手段３と、
上記工具歯車１と被加工内歯車２との両者の間に軸方向への微小な往復動を与える微小往復動付与手段５と、
それに加えて、上記工具歯車１と被加工内歯車２との両者の軸方向位置を変動させる位置変動手段６とを備えたことを特徴とする、内歯車の歯面仕上げ加工機。 A processing machine used for carrying out the tooth surface finishing method of an internal gear according to claim 3,
A tool gear 1 in which hard abrasive grains are attached to the surface of a male gear-shaped base metal that can be fitted with a gap between tooth surfaces with the workpiece internal gear 2;
A torque applying means 3 for inserting the tool gear 1 between the teeth of the internal gear 2 to be processed and applying torque in the rotational direction so that one side of the tooth surface contacts;
A micro reciprocating motion imparting means 5 for imparting a micro reciprocating motion in the axial direction between the tool gear 1 and the work internal gear 2;
In addition, a tooth surface finishing machine for an internal gear, comprising: a position changing means 6 for changing the axial position of both the tool gear 1 and the internal gear 2 to be processed.
JP2010190547A 2010-08-27 2010-08-27 Tooth face finishing processing method and processing machine of internal gear Pending JP2012045675A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015150641A (en) * 2014-02-14 2015-08-24 トヨタ自動車株式会社 Finishing device for internal gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015150641A (en) * 2014-02-14 2015-08-24 トヨタ自動車株式会社 Finishing device for internal gear

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