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JP5546602B2 - Shaving cutter - Google Patents
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JP5546602B2 - Shaving cutter - Google Patents

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JP5546602B2
JP5546602B2 JP2012216055A JP2012216055A JP5546602B2 JP 5546602 B2 JP5546602 B2 JP 5546602B2 JP 2012216055 A JP2012216055 A JP 2012216055A JP 2012216055 A JP2012216055 A JP 2012216055A JP 5546602 B2 JP5546602 B2 JP 5546602B2
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cutter
cutting
cutting edge
machining
workpiece
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JP2014069263A (en
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公則 井野口
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Honda Motor Co Ltd
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Description

本発明は、歯車(以下、ワークという。)の歯面を精度良く仕上げるためのシェービングカッタに関する。   The present invention relates to a shaving cutter for accurately finishing a tooth surface of a gear (hereinafter referred to as a workpiece).

自動車のミッションギヤ等のワークを精度良く加工するためのシェービング加工として、図3(a)に示すように、カッタ軸10jとワーク軸11jに軸交差角を与えて噛み合わせ、カッタ10を切込み方向に送り込みながら回転させることにより、相対すべり速度を利用してワーク11を加工するプランジカットシェービング法が知られており、このようなシェービング加工は、カッタ10の回転力によって連れ回されるワーク11の位置を固定しておくことによって、ワーク11に対して相対的にY方向に力を発生させ、この力を切削力として利用するようにしているが、この際、カッタ10においては、図3(b)に示すように、各セレーション歯1(A)〜3(A)の切刃12を互いに軸方向に位相をずらせ、先の加工に続く次の加工の加工領域を大きく重複させて加工することで、面の粗さを細かくするような技術(例えば、特許文献1(第5図)参照。)が知られている。
一方、被削歯車の歯形や歯すじが周期的にばらつくのを防止するための技術として、先の加工の加工領域と、次の加工の加工領域とのずれ量が、ゼロでなくかつ互いに異なる大きさとするような技術(例えば、特許文献2参照。)も知られている。
As a shaving process for accurately processing a workpiece such as a transmission gear of an automobile, as shown in FIG. 3A, the cutter shaft 10j and the workpiece shaft 11j are engaged with each other by giving an axis crossing angle, and the cutter 10 is cut in the cutting direction. A plunge cut shaving method is known in which a workpiece 11 is processed using a relative sliding speed by being rotated while being fed into the workpiece. Such a shaving process is performed on the workpiece 11 rotated by the rotational force of the cutter 10. By fixing the position, a force is generated in the Y direction relative to the workpiece 11, and this force is used as a cutting force. As shown in b), the cutting blades 12 of the serration teeth 1 (A) to 3 (A) are shifted in phase in the axial direction, and the next processing following the previous machining is performed. By working in the processing area is a large overlap, techniques such as finely roughness of the surface (e.g., see Patent Document 1 (FIG. 5).) Are known.
On the other hand, as a technique for preventing the tooth profile and tooth trace of the work gear from periodically varying, the deviation amount between the machining area of the previous machining and the machining area of the next machining is not zero and is different from each other. A technique for making the size (for example, see Patent Document 2) is also known.

特開昭58−82623号公報JP 58-82623 A 特開2009−255276号公報JP 2009-255276 A

ところが、前記特許文献1のような技術にあっては、ワークの一の歯につき、n回目のカッタの切刃の加工領域とn+1回目の切刃の加工領域が大きく重複しているのに対して、一回の切削量がミクロン単位であるため、重複領域においてカッタの切刃がワーク表面に摺り合わせられる状態となり、該表面に磨耗痕が発生するとともに、仕上がり状態が安定せず、いわゆる歯すじがばらつくとともに、刃具が磨耗しやすくなるという不具合がある。そして歯すじのばらつきは、歯車同士が噛み合った際に、異音を発生させる原因ともなっていた。   However, in the technique as described in Patent Document 1, the machining area of the cutting blade of the n-th cutter and the machining area of the n + 1-th cutting edge greatly overlap with each tooth of the workpiece. Since the amount of cutting at one time is in units of microns, the cutting edge of the cutter is rubbed against the workpiece surface in the overlapping area, and the surface remains worn and the finished state is not stable, so-called tooth There are problems that the streaks vary and the blades are easily worn. The variation in the tooth traces has also caused noise when the gears mesh with each other.

また、後者の特許文献2のような技術の場合、ワークの一の歯につき、n回目のカッタの切刃の加工領域とn+1回目の切刃の加工領域とのずれ量を異ならせて加工するため、加工領域の重複領域は、大きい領域と小さい領域が交互に発生するものの、やはり重複する加工が行われるため磨耗痕が発生したり、刃具の磨耗に悪影響を与えるという不具合があった。   Further, in the case of the latter technique as described in Patent Document 2, machining is performed for each tooth of the workpiece with different amounts of deviation between the machining area of the cutting blade of the n-th cutter and the machining area of the (n + 1) -th cutting edge. For this reason, although the overlapping regions of the processing regions are alternately generated in a large region and a small region, there is a problem that wear marks are generated because the overlapping processing is performed and the wear of the cutting tool is adversely affected.

そこで本発明は、刃具本来の切削効率を高め、摺り合わせによる刃具の磨耗を防止するとともに、加工面に磨耗痕が残るような加工を抑制し、均一な歯すじを成形することのできるシェービングカッタを提供することを目的とする。   Accordingly, the present invention provides a shaving cutter that can increase the original cutting efficiency of the cutting tool, prevent wear of the cutting tool due to rubbing, suppress processing that leaves a wear mark on the processed surface, and form uniform tooth traces. The purpose is to provide.

上記目的を達成するため本発明は、所定間隔置きに配設される複数のセレーション歯を備え、隣り合うセレーション歯の切刃の位相が異にされるシェービングカッタにおいて、前記セレーション歯の切刃の配列を、ワークの一の歯につき、n回目(nは0以外の正の整数、以下同じ。)のカッタの切刃の加工領域に対して、n+1回目のカッタの切刃の加工領域が重複しないようにした。   In order to achieve the above object, the present invention provides a shaving cutter having a plurality of serration teeth arranged at predetermined intervals, wherein the phases of adjacent serration teeth are different from each other. The machining area of the cutter blade of the n + 1th cutter overlaps the machining area of the cutter blade of the nth time (n is a positive integer other than 0, the same shall apply hereinafter) per one tooth of the workpiece. I tried not to.

このように、ワークを加工する際、n回目の切刃の加工領域に対して、n+1回目の切刃の加工領域が重複しないようにすることで、摺り合わせるような切削がなくなって磨耗痕の発生を防止できるとともに、刃具の寿命を効果的に延ばすことが可能となり、しかも切刃本来の切削加工が効果的に行われるようになって作業効率が向上する。また、n回目の加工領域とn+1回目の加工領域を重複させないことにより、特に加工の立上りである1回目や2回目の加工において、ワークの歯面に切刃の全領域が喰い込んで切削するため、シェービングカッタの回転動作がワークに効率的に伝達されるようになり、それ以降の切削は、重複領域を伴っていてもワークは円滑に回転するようになって効率的に加工できる。
また、切刃の歯形がワークに良好に転写されて歯すじの精度を良好にでき、歯車を噛み合わせた際に発生する異音を防止するのに効果がある。
In this way, when machining the workpiece, the machining area of the (n + 1) th cutting edge is not overlapped with the machining area of the (n + 1) th cutting edge. It is possible to prevent the occurrence, and it is possible to effectively extend the life of the cutting tool. In addition, the original cutting of the cutting blade is effectively performed and the working efficiency is improved. Further, by not overlapping the n-th machining area and the (n + 1) -th machining area, the entire cutting edge area digs into the tooth surface of the workpiece and cuts particularly in the first and second machining, which is the start of machining. Therefore, the rotational operation of the shaving cutter is efficiently transmitted to the workpiece, and the subsequent cutting can be efficiently processed even if there is an overlapping region so that the workpiece rotates smoothly.
In addition, the tooth profile of the cutting blade is transferred to the work well, the accuracy of the tooth trace can be improved, and it is effective in preventing abnormal noise generated when the gears are engaged.

この際、前記セレーション歯の切刃の配列を、ワークの一の歯につき、n+2回目のカッタの切刃の加工領域が、n回目のカッタの切刃の加工領域と一部重複するようにすれば好ましい。
すなわち、n回目とn+1回目には、加工領域が重複しないため、荒加工に近い加工が行われるようになり、n+2回目の加工領域を、n回目の加工領域と一部重複させることにより、重複部分では仕上げ加工に近い加工が行われるようになり、荒加工から仕上げ加工までの一連の加工をより効率的に行うことができる。
At this time, the array of the cutting blades of the serration teeth is set so that the machining area of the n + 2th cutter cutting edge partially overlaps the machining area of the cutting blade of the nth cutter for each tooth of the workpiece. It is preferable.
That is, since the machining areas do not overlap at the n-th and n + 1-th machining, machining close to rough machining is performed, and the n + 2 machining area is overlapped by partially overlapping the n-th machining area. In the portion, processing close to finishing is performed, and a series of processing from roughing to finishing can be performed more efficiently.

ワークを加工する際、n回目の切刃の加工領域に対して、n+1回目の切刃の加工領域が重複しないようにすることで、磨耗痕の発生が防止されるとともに、刃具の寿命を効果的に延ばすことが可能となる。また、切刃の歯形がワークに良好に転写されて歯すじの精度を良好にでき、異音発生を抑制するのに効果的である。
また、n+2回目の切刃の加工領域とn回目の切刃の加工領域の一部を重複させることにより、荒加工から仕上げ加工までの一連の加工をより効率的に行うことができる。
When machining a workpiece, the machining area of the (n + 1) th cutting edge is not overlapped with the machining area of the nth cutting edge, so that the generation of wear marks is prevented and the life of the blade is effective. Can be extended. In addition, the tooth profile of the cutting edge is transferred to the workpiece well, the accuracy of the tooth trace can be improved, and it is effective for suppressing the generation of abnormal noise.
Further, by overlapping a part of the machining area of the n + 2th cutting edge and a part of the machining area of the nth cutting edge, a series of machining from roughing to finishing can be performed more efficiently.

本発明に係るシェービングカッタによる加工方法の具体例を説明するための説明図である。It is explanatory drawing for demonstrating the specific example of the processing method by the shaving cutter which concerns on this invention. 図1における加工時の、加工領域の軌跡を示す説明図である。It is explanatory drawing which shows the locus | trajectory of the process area | region at the time of the process in FIG. (a)は加工法の概要を示す説明図で、(b)はカッタの刃具の配列の一例を示す説明図である。(A) is explanatory drawing which shows the outline | summary of a processing method, (b) is explanatory drawing which shows an example of the arrangement | sequence of the cutter blade tool. (a)は本実施例のカッタの切刃の配列を示し、(b)は切削順の切刃の軌道を示す説明図である。(A) shows the arrangement of the cutting edges of the cutter according to the present embodiment, and (b) is an explanatory view showing the trajectory of the cutting edges in the cutting order. 加工時にカッタにかかる負荷を電圧変化で検証したグラフである。It is the graph which verified the load concerning a cutter at the time of processing by voltage change. ワークの歯すじを測定した測定データである。It is the measurement data which measured the tooth trace of the workpiece.

本発明の実施の形態について添付した図面に基づき説明する。
本発明に係るシェービングカッタは、刃具本来の切削効率を高め、摺り合わせによる刃具の磨耗を防止するとともに、加工面の磨耗範囲を抑制することで均一な歯すじを成形することのできるシェービングカッタを提供できるようにされ、n回目の切刃の加工領域と、n+1回目の切刃の加工領域を重複させないで加工できることを特徴としている。そして、より好ましくは、n+2回目の切刃の加工領域をn回目の切刃の加工領域と一部重複させることで、荒加工から仕上げ加工までの一連の加工をより効率的に行えるようにしている。
Embodiments of the present invention will be described with reference to the accompanying drawings.
The shaving cutter according to the present invention is a shaving cutter that can increase the original cutting efficiency of the cutting tool, prevent wear of the cutting tool due to rubbing, and form a uniform tooth trace by suppressing the wear range of the processed surface. The machining area of the n-th cutting edge and the machining area of the (n + 1) -th cutting edge can be machined without overlapping. More preferably, the machining area of the n + 2th cutting edge is partially overlapped with the machining area of the nth cutting edge so that a series of machining from roughing to finishing can be performed more efficiently. Yes.

シェービング加工法は、図3(a)に示すように、カッタ10のカッタ軸10jと、ワーク11のワーク軸11jに軸交差角を与えて噛み合わせ、カッタ10を回転させることでワーク11を連れ回し、それによって生じる相対すべり速度を利用してワーク11の歯面を加工する方法であり、プランジカットにおいては、カッタを切込み方向に動作させる加工法である。この際、カッタ10の外周面には、図3(b)に示すようなセレーション歯が所定間隔置きに複数設けられており、これらセレーション歯には、所定ピッチ置きに複数の切刃12が設けられている。   As shown in FIG. 3 (a), the shaving process is performed by giving an axis crossing angle to the cutter shaft 10j of the cutter 10 and the workpiece shaft 11j of the workpiece 11, and rotating the cutter 10 to bring the workpiece 11 together. This is a method of machining the tooth surface of the workpiece 11 by utilizing the relative sliding speed generated by the rotation, and in plunge cutting, it is a machining method of moving the cutter in the cutting direction. At this time, a plurality of serration teeth as shown in FIG. 3B are provided at predetermined intervals on the outer peripheral surface of the cutter 10, and a plurality of cutting blades 12 are provided at predetermined intervals on these serration teeth. It has been.

そして、隣り合うセレーション歯の切刃12は、位相が異にされており、また本発明では、ワーク11の一の歯につき、n回目の切刃12の加工領域と、n+1回目の切刃12の加工領域とが重複しないようにすることで、切削効率を高めるとともに、磨耗痕の発生を防止し、仕上がり精度を高めるようにしている。   The adjacent serrated teeth 12 have different phases, and in the present invention, for each tooth of the workpiece 11, the machining area of the n-th cutting edge 12 and the n + 1-th cutting edge 12 are used. By preventing the machining area from overlapping, the cutting efficiency is increased, the generation of wear marks is prevented, and the finishing accuracy is enhanced.

そこで、カッタ10の歯数Zが89でワーク11の歯数Zが15のときの本実施例について説明する。なお、カッタ10のセレーション歯の切刃12のピッチは本実施例では2.0mmである。   Accordingly, the present embodiment when the number of teeth Z of the cutter 10 is 89 and the number of teeth Z of the workpiece 11 is 15 will be described. In this embodiment, the pitch of the serration tooth cutting blades 12 of the cutter 10 is 2.0 mm.

図4(A)に示すように、ある箇所の一列目のセレーション歯1(A)に形成される切刃12の配列に対して、隣り合う二列目のセレーション歯2(A)の切刃12の配列は、切刃12同士の位置が少し重複するように配置され、これに隣り合う三列目のセレーション歯3(A)の切刃12の配列と、その隣の四列目のセレーション歯4(A)の切刃12の配列は、同じようなずれ量で、セレーション歯1(A)〜4(A)までが一セットとして配列される。   As shown in FIG. 4 (A), the cutting blades of the second row of serration teeth 2 (A) adjacent to the arrangement of the cutting blades 12 formed on the first row of serration teeth 1 (A) at a certain location. The arrangement of 12 is arranged so that the positions of the cutting blades 12 are slightly overlapped, and the arrangement of the cutting blades 12 of the third row of serration teeth 3 (A) adjacent thereto and the serration of the fourth row adjacent thereto. As for the arrangement of the cutting blades 12 of the teeth 4 (A), the serration teeth 1 (A) to 4 (A) are arranged as one set with the same shift amount.

次いで、五列目のセレーション歯5(A)の切刃12については、四列目のセレーション歯4(A)の切刃12と重複しないよう離間して配設され、六列目から八列目までが含まれるセレーション歯5(A)〜8(A)の切刃12は、セレーション歯1(A)〜4(A)の切刃12と同じようなずれ量で四組が一セットとして配列される。そして、九列目のセレーション歯9(A)の切刃12については、八列目のセレーション歯8(A)の切刃12と重複しないよう離間して配設され、次いで、十列目と十一列目が含まれる三組のセレーション歯9(A)〜11(A)の切刃12は、セレーション歯1(A)〜4(A)の切刃12と同じずれ量で配列され、以下、最初の切刃12の位置が異なるものの、同じ要領で配列が繰り返されてシェービングカッタ10が構成されている。   Next, the cutting blades 12 of the fifth row of serration teeth 5 (A) are arranged so as not to overlap with the cutting blades 12 of the fourth row of serration teeth 4 (A), and the sixth row to the eighth row. The cutting blades 12 of the serration teeth 5 (A) to 8 (A) including the eyes have a shift amount similar to that of the cutting blades 12 of the serration teeth 1 (A) to 4 (A), and four sets as one set. Arranged. The cutting blades 12 of the ninth row of serration teeth 9 (A) are arranged so as not to overlap with the cutting blades 12 of the eighth row of serration teeth 8 (A). The cutting blades 12 of the three sets of serration teeth 9 (A) to 11 (A) including the eleventh row are arranged with the same shift amount as the cutting blades 12 of the serration teeth 1 (A) to 4 (A), Hereinafter, although the position of the first cutting edge 12 is different, the shaving cutter 10 is configured by repeating the arrangement in the same manner.

このようなカッタ10をワーク11に噛み合わせ、カッタ10を回転させると、ワーク11の一の歯につき、カッタ10のセレーション歯は、ワーク10の歯数である15置きに1(A)、16(A)、31(A)、46(A)…と噛合することになり、噛合したセレーション歯の切刃12で加工されることになるが、このときに切刃12で加工される加工領域を1(a)、16(a)、31(a)、46(a)、…とすると、図4(b)に示すように、切刃12と切刃12の間隔を0.43mmに設定していることから、加工領域1(a)、16(a)、31(a)、46(a)、…は、図1、図2に示すように、例えば一回目の切刃12の加工領域1aと、二回目の切刃12の加工領域16aが重複しない位置を加工できるようにされている。同じように、二回目の切刃12の加工領域16aと三回目の切刃12の加工領域31aは重複せず、以下、同様である。すなわち、n回目の切刃12の加工領域とn+1回目の切刃12の加工領域が重複しないようにしている。   When such a cutter 10 is engaged with the workpiece 11 and the cutter 10 is rotated, the serration teeth of the cutter 10 are 1 (A), 16 for every 15 teeth of the workpiece 10 for each tooth of the workpiece 11. (A), 31 (A), 46 (A)... Meshed with the cutting blade 12 of the meshed serration teeth. At this time, the processing region processed with the cutting blade 12 1 (a), 16 (a), 31 (a), 46 (a),..., The interval between the cutting edge 12 and the cutting edge 12 is set to 0.43 mm as shown in FIG. 4 (b). Therefore, the processing regions 1 (a), 16 (a), 31 (a), 46 (a),... Are processed by, for example, the first cutting edge 12 as shown in FIGS. The position where the area 1a and the machining area 16a of the second cutting edge 12 do not overlap can be machined. That. Similarly, the machining area 16a of the second cutting edge 12 and the machining area 31a of the third cutting edge 12 do not overlap, and so on. That is, the machining area of the n-th cutting edge 12 and the machining area of the (n + 1) -th cutting edge 12 do not overlap.

また、図2に示すように、三回目の切刃12の加工領域31aは、一回目の切刃12の加工領域1aと一部重複するようにしており、四回目の切刃12の加工領域46aは、二回目の切刃12の加工領域16aと一部重複するようにしており、以下、同様である。すなわち、n+2回目の切刃12の加工領域がn回目の切刃12の加工領域と一部重複するようにしている。   In addition, as shown in FIG. 2, the machining area 31 a of the third cutting edge 12 partially overlaps the machining area 1 a of the first cutting edge 12, and the machining area of the fourth cutting edge 12. 46a is configured to partially overlap the machining area 16a of the second cutting edge 12, and the same applies hereinafter. In other words, the machining area of the n + 2th cutting edge 12 partially overlaps the machining area of the nth cutting edge 12.

また、図1に示すように、ワーク11が一回転するたびに切込み量0.07μで相対的にワークを送り込むようにしており、この一定の切込み量0.07μや、切刃12の一定のずれ量0.43mmは、ピッチ間隔2mmのセレーション歯において、いろいろとその値を変えて実験し、先に切削した加工領域と、その後に切削した加工領域との関係において、n回目の切刃12の加工領域とn+1回目の切刃12の加工領域が重複せず、n+2回目の切刃12の加工領域とn回目の切刃12の加工領域とが一部重複するために必要な条件として定めた値である。
なお、図1、図2においては、横軸のピッチ間隔やずれ量の単位がmm単位であるのに対して、縦軸の切込み量の単位がμm単位であるため、説明上、縦軸方向を拡大して図示しており、実際の加工面の面形状を表したものではない。
Further, as shown in FIG. 1, each time the workpiece 11 makes one rotation, the workpiece is relatively fed with a cutting amount of 0.07 μ, and this constant cutting amount of 0.07 μ or the constant cutting edge 12 is fixed. The deviation amount of 0.43 mm was obtained by experimenting with various values of serration teeth with a pitch interval of 2 mm. The relationship between the cutting area cut first and the cutting area cut after that is nth cutting edge 12. The processing region of the (n + 1) th cutting edge 12 does not overlap with the processing region of the (n + 1) th cutting edge, and the processing region of the (n + 2) th cutting blade 12 and the processing region of the nth cutting edge 12 partially overlap. Value.
In FIG. 1 and FIG. 2, the unit of the pitch interval on the horizontal axis and the amount of deviation is in mm, whereas the unit of incision on the vertical axis is in μm. Is enlarged and does not represent the surface shape of the actual processed surface.

そして、このような条件下で加工すると、図2に示すように、一回目の加工においてセレーション歯1(A)で加工された加工領域1(a)と、二回目のセレーション歯16(A)で加工された加工領域16(a)とは、重複領域が生じないため、荒加工に近い加工が行われるようになるとともに、三回目のセレーション歯31(A)で加工される加工領域31aと、一回目の加工において加工された加工領域1aの一部が重複するため、この重複した領域では仕上げ加工に近い加工が行われ、荒加工から仕上げ加工までの一連の加工をより効率的に行うことができる。   And if it processes on such conditions, as shown in FIG. 2, the process area | region 1 (a) processed with the serration tooth 1 (A) in the 1st process, and the 2nd serration tooth 16 (A) Since the overlapping region does not occur with the processing region 16 (a) processed in step 4, processing close to roughing is performed, and the processing region 31a processed with the third serration tooth 31 (A) Since a part of the machining area 1a machined in the first machining is overlapped, machining close to finishing is performed in this overlapping area, and a series of machining from roughing to finishing is performed more efficiently. be able to.

また、n回目の加工領域とn+1回目の加工領域を重複させていないため、特に加工の立上りである1回目や2回目の加工において、ワークの歯面に切刃の全領域が喰い込んで切削し、シェービングカッタの回転動作がワークに効率的に伝達されるようになり、それ以降の切削は、重複領域を伴っていてもワークは円滑に回転するようになり、効率的に加工できる。   In addition, since the n-th machining area and the (n + 1) -th machining area are not overlapped, cutting is performed with the entire cutting edge biting into the tooth surface of the workpiece, especially in the first and second machining, which is the start of machining. In addition, the rotation operation of the shaving cutter is efficiently transmitted to the workpiece, and the subsequent cutting enables the workpiece to rotate smoothly even if there is an overlapping region, and can be efficiently processed.

そして、このような加工を適宜回数繰り返すことによって、ワークの歯面の全領域を効率的に加工することができる。   Then, by repeating such processing as many times as necessary, the entire region of the tooth surface of the workpiece can be processed efficiently.

以上のようなシェービングカッタ10において、n回目のセレーション歯の切刃12の加工領域と、n+1回目のセレーション歯の切刃12の加工領域が重ならないため、摺り合わせるような加工態様を避けることができ、刃具の寿命を延ばすとともに、歯すじの精度を高める加工が可能になり、しかも従来に較べて加工時間を短くして作業効率を向上させることができる。   In the shaving cutter 10 as described above, the machining area of the n-th serration tooth cutting blade 12 and the machining area of the (n + 1) -th serration tooth cutting blade 12 do not overlap, so that a machining mode in which they are rubbed together is avoided. In addition, it is possible to extend the life of the cutting tool and increase the accuracy of the tooth traces, and it is possible to improve the working efficiency by shortening the machining time as compared with the prior art.

ところで、図5は、本シェービングカッタ10による加工時にカッタにかかる負荷を電圧の変化で検証したグラフであり、重複領域が多い従来の電圧値や、切刃のピッチ間隔や切刃のずれ量を変化させて実験した他の加工法の電圧値に較べて、本願の場合は、重複領域より加工領域が広いため、電圧値が高くなっていることが判り、より効率的に加工されていることが実証された。
なお、試1は、切刃ピッチ2.0mmにおいて、切刃のずれ量を0.43mmでなく0.25mmとしたものであり、試2は、切刃のピッチを2.0mmでなく2.4mmにし、切刃のずれ量を0.25mmにしたものであり、試1、試2とも、n回目の切刃の加工領域とn+1回目の切刃の加工領域の一部が重複するものである。
Incidentally, FIG. 5 is a graph in which the load applied to the cutter at the time of machining by the shaving cutter 10 is verified by a change in voltage, and the conventional voltage value with many overlapping regions, the pitch interval of the cutting edge, and the amount of deviation of the cutting edge are shown. Compared to the voltage value of other processing methods that were experimented with varying, in the case of this application, the processing area is wider than the overlap area, so it can be seen that the voltage value is high, and it is processed more efficiently Has been demonstrated.
In Test 1, the amount of deviation of the cutting edge was set to 0.25 mm instead of 0.43 mm at a cutting edge pitch of 2.0 mm, and in Test 2, the cutting edge pitch was set to 2. 4mm, and the amount of deviation of the cutting edge is 0.25mm. In both trial 1 and trial 2, the machining area of the n-th cutting edge overlaps with the machining area of the n + 1-th cutting edge. is there.

また、図6は、ワークの歯すじを測定したものであり、ワークデータの欄で破線で示される歯すじが、従来に較べてまっすぐ仕上がっていることが確認された。
なお、この図でも、試1は、切刃ピッチを2.0mm、切刃のずれ量を0.25mmとしたものであり、試2は、切刃ピッチを2.4mm、切刃のずれ量を0.25mmとしたものである。
Further, FIG. 6 shows the measurement of the tooth trace of the workpiece, and it was confirmed that the tooth trace indicated by the broken line in the column of the workpiece data is finished straighter than the conventional one.
In this figure as well, trial 1 has a cutting edge pitch of 2.0 mm and a cutting edge deviation of 0.25 mm, and trial 2 has a cutting edge pitch of 2.4 mm and a cutting edge deviation. Is 0.25 mm.

以上のことから、本発明の有効性が確認された。   From the above, the effectiveness of the present invention was confirmed.

なお、本発明は以上のような実施形態に限定されるものではない。本発明の特許請求の範囲に記載した事項と実質的に同一の構成を有し、同一の作用効果を奏するものは本発明の技術的範囲に即する。
例えば、切刃12のピッチ間隔2mmや、前回の切刃12と次回の切刃12の間隔0.43mmなどの諸元は一例である。
In addition, this invention is not limited to the above embodiments. What has substantially the same configuration as the matters described in the claims of the present invention and exhibits the same operational effects is in accordance with the technical scope of the present invention.
For example, specifications such as the pitch interval of 2 mm of the cutting blade 12 and the interval of 0.43 mm between the previous cutting blade 12 and the next cutting blade 12 are examples.

歯車の歯面を仕上げる際、精度良く、しかも効率的に加工できるとともに、刃具の寿命も高まるため、例えば自動車用ギヤ部品を加工する技術として広い普及が期待される。   When finishing the tooth surface of the gear, it can be processed accurately and efficiently, and the life of the cutting tool is also increased. Therefore, for example, widespread use as a technology for processing gear parts for automobiles is expected.

10…シェービングカッタ、11…ワーク、12…切刃。 10 ... shaving cutter, 11 ... work, 12 ... cutting blade.

Claims (2)

所定間隔置きに配設される複数のセレーション歯を備え、隣り合うセレーション歯の切刃の位相が異にされるシェービングカッタであって、前記セレーション歯の切刃の配列は、ワークの一の歯につき、n回目(nは0以外の正の整数、以下同じ。)のカッタの切刃の加工領域に対して、n+1回目のカッタの切刃の加工領域が重複しないようにされることを特徴とするシェービングカッタ。 A shaving cutter comprising a plurality of serration teeth arranged at predetermined intervals, wherein the phases of the adjacent serration teeth are different from each other, wherein the serration teeth are arranged in one tooth The processing area of the cutter edge of the n + 1-th cutter is not overlapped with the machining area of the cutter edge of the n-th cutter (n is a positive integer other than 0, the same shall apply hereinafter). Shaving cutter. 前記セレーション歯の切刃の配列は、ワークの一の歯につき、n+2回目のカッタの切刃の加工領域が、n回目のカッタの切刃の加工領域と一部重複するようにされることを特徴とする請求項1に記載のシェービングカッタ。 The serration tooth cutting edge arrangement is such that, for each tooth of the workpiece, the machining area of the cutting blade of the (n + 2) -th cutter partly overlaps with the machining area of the cutting blade of the n-th cutter. The shaving cutter according to claim 1, wherein
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DE1152595B (en) * 1960-12-12 1963-08-08 Hurth Masch Zahnrad Carl Shaving wheel with helically arranged cutting edges
FR1312144A (en) * 1961-12-12 1962-12-14 Hurth Masch Zahnrad Carl Toothed cutting tool for machining toothed wheels
DE2129614C3 (en) * 1971-06-15 1975-03-27 Carl Hurth Maschinen- Und Zahnradfabrik, 8000 Muenchen Gear-like tool suitable for machining a specific gear by hobbing
JP3499830B2 (en) * 2001-02-06 2004-02-23 三菱マテリアル神戸ツールズ株式会社 Shaving cutter
JP5251613B2 (en) * 2008-03-28 2013-07-31 三菱マテリアル株式会社 Shaving cutter

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