WO2016111172A1 - Skiving cutter - Google Patents
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- WO2016111172A1 WO2016111172A1 PCT/JP2015/085930 JP2015085930W WO2016111172A1 WO 2016111172 A1 WO2016111172 A1 WO 2016111172A1 JP 2015085930 W JP2015085930 W JP 2015085930W WO 2016111172 A1 WO2016111172 A1 WO 2016111172A1
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- 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
- B23F21/04—Planing or slotting tools
- B23F21/10—Gear-shaper cutters having a shape similar to a spur wheel or part thereof
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- the present invention relates to a skiving cutter for performing a cutting process (skiving process) by giving an axis crossing angle to a gear material and rotating it synchronously.
- the skiving process for gear materials is performed using a single pinion cutter-shaped cutter.
- the skiving process for the gear member is performed using one cutter, so that the cutting load with a single cutting increases the load on the tool, and as a result, the cutting is performed several times (6 The process efficiency was not high.
- the tool life is short because cutting is performed several times (about 6 to 7 times) using one cutter.
- the present invention has been made in view of the above problems, and an object thereof is to provide a skiving cutter with high machining efficiency and a long tool life.
- the skiving cutter according to the first invention for solving the above-mentioned problems is A plurality of pinion cutter-shaped cutters are stacked and combined so that the cutting teeth of each of the cutters are in phase with each other, The dislocations of the cutting teeth of each of the cutters are sequentially increased along the tooth trace direction of the cutting teeth.
- the skiving cutter according to the second invention for solving the above-mentioned problems is In the skiving cutter according to the first invention, The tooth height of the cutting tooth of each cutter is sequentially increased along the direction of the tooth trace of the cutting tooth.
- a skiving cutter according to a third invention for solving the above-described problem is In the skiving cutter according to the second invention, the increment of the height of the cutting teeth of each cutter is the same.
- a skiving cutter according to a fourth invention for solving the above-mentioned problems is as follows.
- the cutter for skiving processing according to the second or third invention When the height of the cutting teeth of the final cutter is WD, the number of the cutters is M, and the number of cuttings is N, the increment of the height of the cutting teeth of each cutter is the same, The increment is WD / (N ⁇ M).
- a skiving cutter according to a fifth invention for solving the above-mentioned problems is In the skiving cutter according to the first invention, According to the tooth trace direction of the cutting teeth, the height and thickness of the cutting teeth of each cutter are sequentially increased.
- a skiving cutter according to a sixth invention for solving the above-mentioned problems is In the skiving cutter according to the fifth invention, The height and thickness of the cutting teeth of each cutter are sequentially increased so that the increment of the area of the cutting teeth of each cutter is the same.
- a skiving cutter according to a seventh invention for solving the above-mentioned problems is In the cutter for skiving processing according to the fifth or sixth invention, When the tooth height of the cutting tooth of the final cutter is WD and the number of cuttings is N, the cutting tooth of each cutter is within the range of WD / N from the tip of the cutting tooth of the final cutter. The height and thickness of the cutting teeth of each cutter are sequentially increased so that the increment of the area in the range is the same.
- FIG. 1A is a side view showing a skiving cutter 10 of this embodiment.
- the skiving cutter 10 is formed by combining three cutters 11 to 13 each having a pinion cutter shape.
- a plurality of cutting teeth 14 to 16 are formed on the outer circumferences of the cutters 11 to 13 so as to intersect the axial direction A thereof.
- the cutting teeth 14 of the cutter 11 have a trapezoidal tooth profile, as shown in the enlarged view of FIG. 1B, and the end face on the front side is a rake face 14a (the lower side in FIG. 1A). Side).
- the phases of the cutting teeth 14 to 16 are matched, in other words, the cutting teeth 14 to 16 are arranged so that the tooth trace directions B (cutting progress directions) are aligned on the same line, and the cutters 11 to 16 are arranged. 13 are sequentially stacked and combined.
- Each of the cutting teeth 14 to 16 sequentially changes the dislocation (tooth height, tooth thickness, etc.).
- the tooth thicknesses of the other cutting teeth 14 and 15 are slightly smaller than the tooth thickness of the final cutting tooth 16, and the tooth thicknesses of the other cutting teeth 14 and 15 are the same. I have to.
- skiving processing Since skiving processing has a high processing load, conventionally, it has been necessary to divide the cut into several times (about 6 to 7 times). However, by using the skiving processing cutter 10 having the above-described configuration, Skiving can be performed by cutting once or twice, and the processing efficiency can be increased. Conventionally, the tool life is short because cutting is performed several times (about 6 to 7 times), but the tool life can be extended by using the skiving cutter 10 having the above-described configuration. .
- the skiving cutter of the present embodiment has basically the same configuration as the skiving cutter 10 shown in the first embodiment. That is, a plurality of cutters are configured by matching the phases of the respective cutting teeth and sequentially overlapping and combining them. Therefore, the skiving cutter of the present embodiment will be described using the same reference numerals as the skiving cutter 10 shown in the first embodiment.
- the rake surfaces 14a to 16a of the cutting teeth 14 to 16 are moved along the tooth trace direction B from the smaller tooth height to the larger tooth height.
- the rake surfaces 14a to 16a of the cutting teeth 14 to 16 are arranged along the tooth trace direction B from the side where the tooth thickness and the tooth thickness are smaller. We change sequentially to the larger one.
- the rake face of each cutting tooth 14 to 16 is within the range of WD / N from the tip of the cutting tooth 16.
- the tooth height and the tooth thickness are sequentially changed from the smaller to the larger so that the increments of the areas 14a to 16a are the same.
- each cutting is performed in the range of WD / 2 from the tip of the rake face 16a of the final cutting tooth 16;
- the increments of the areas of the rake faces 14a to 16a of the teeth 14 to 16 are made the same. If it demonstrates with reference to FIG. 3, if the area of the rake face 14a of the cutting tooth 14 is set to S1 in the range of WD / 2 from a tooth-length front end, the area S2 of the said range of the rake face 15a of the cutting tooth 15 will be S2.
- the rake of each cutting tooth 14 to 16 is within the range of WD from the tip of the rake face 16a of the final cutting tooth 16 to the WD, that is, within the entire tooth height.
- skiving cutter By using the skiving cutter with such a configuration, skiving can be performed by cutting once or twice, the machining efficiency can be increased, and the tool life can be extended.
- the skiving cutter 10 including three cutters 11 to 13 is illustrated as an example, and in consideration of practical usage, two or three
- the number of cutters is not limited to this, and the number of cutters may be four or more.
- the present invention is suitable for a pinion cutter-shaped skiving cutter used for skiving processing.
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Abstract
The purpose of the present invention is to provide a skiving cutter of high machining efficiency and long tool service life. Accordingly, the present invention is configured by assembling a plurality of pinion cutter-shaped cutters which are sequentially stacked with matching of the phases of cutting teeth of each of the cutters. Each cutter is given an identical increment of tooth height for the cutting teeth thereof, the increment being WD/(N×M) where WD is the tooth height of the cutting teeth of the final cutter, M is the number of cutters, and N is the number of cuts. The tooth height of the cutting teeth of the respective cutters is sequentially increased along a tooth trace direction of the cutting teeth.
Description
本発明は、歯車材に対して、軸交差角度を与えて、同期回転させることで切削加工(スカイビング加工)を行うスカイビング加工用カッタに関する。
The present invention relates to a skiving cutter for performing a cutting process (skiving process) by giving an axis crossing angle to a gear material and rotating it synchronously.
歯車材に対するスカイビング加工は、ピニオンカッタ形状の1枚のカッタを用いて、切削加工を行っている。
The skiving process for gear materials is performed using a single pinion cutter-shaped cutter.
上述したように、歯車材に対するスカイビング加工は、1枚のカッタを用いて行っているため、1回の切り込みでの切削加工では工具の負荷が高くなり、その結果、切り込みを数回(6~7回程度)に分ける必要があり、加工効率が高くなかった。又、1枚のカッタを用いて、数回(6~7回程度)の切り込み加工を行うため、工具寿命が短いと言う問題もあった。
As described above, the skiving process for the gear member is performed using one cutter, so that the cutting load with a single cutting increases the load on the tool, and as a result, the cutting is performed several times (6 The process efficiency was not high. In addition, there is a problem that the tool life is short because cutting is performed several times (about 6 to 7 times) using one cutter.
本発明は上記課題に鑑みなされたもので、加工効率が高く、工具寿命が長いスカイビング加工用カッタを提供することを目的とする。
The present invention has been made in view of the above problems, and an object thereof is to provide a skiving cutter with high machining efficiency and a long tool life.
上記課題を解決する第1の発明に係るスカイビング加工用カッタは、
複数枚のピニオンカッタ形状のカッタが、各々の前記カッタの切削歯の位相が合うように重ねて組み合わされており、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の転位が順次大きくなっている
ことを特徴とする。 The skiving cutter according to the first invention for solving the above-mentioned problems is
A plurality of pinion cutter-shaped cutters are stacked and combined so that the cutting teeth of each of the cutters are in phase with each other,
The dislocations of the cutting teeth of each of the cutters are sequentially increased along the tooth trace direction of the cutting teeth.
複数枚のピニオンカッタ形状のカッタが、各々の前記カッタの切削歯の位相が合うように重ねて組み合わされており、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の転位が順次大きくなっている
ことを特徴とする。 The skiving cutter according to the first invention for solving the above-mentioned problems is
A plurality of pinion cutter-shaped cutters are stacked and combined so that the cutting teeth of each of the cutters are in phase with each other,
The dislocations of the cutting teeth of each of the cutters are sequentially increased along the tooth trace direction of the cutting teeth.
上記課題を解決する第2の発明に係るスカイビング加工用カッタは、
上記第1の発明に記載のスカイビング加工用カッタにおいて、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の歯丈が順次大きくなっている
ことを特徴とする。 The skiving cutter according to the second invention for solving the above-mentioned problems is
In the skiving cutter according to the first invention,
The tooth height of the cutting tooth of each cutter is sequentially increased along the direction of the tooth trace of the cutting tooth.
上記第1の発明に記載のスカイビング加工用カッタにおいて、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の歯丈が順次大きくなっている
ことを特徴とする。 The skiving cutter according to the second invention for solving the above-mentioned problems is
In the skiving cutter according to the first invention,
The tooth height of the cutting tooth of each cutter is sequentially increased along the direction of the tooth trace of the cutting tooth.
上記課題を解決する第3の発明に係るスカイビング加工用カッタは、
上記第2の発明に記載のスカイビング加工用カッタにおいて、
各々の前記カッタの前記切削歯の前記歯丈の増分が同じである
ことを特徴とする。 A skiving cutter according to a third invention for solving the above-described problem is
In the skiving cutter according to the second invention,
The increment of the height of the cutting teeth of each cutter is the same.
上記第2の発明に記載のスカイビング加工用カッタにおいて、
各々の前記カッタの前記切削歯の前記歯丈の増分が同じである
ことを特徴とする。 A skiving cutter according to a third invention for solving the above-described problem is
In the skiving cutter according to the second invention,
The increment of the height of the cutting teeth of each cutter is the same.
上記課題を解決する第4の発明に係るスカイビング加工用カッタは、
上記第2又は第3の発明に記載のスカイビング加工用カッタにおいて、
最終の前記カッタの前記切削歯の歯丈がWD、前記カッタの枚数がM、切り込み回数がNである場合に、各々の前記カッタの前記切削歯の前記歯丈の増分が同じであり、当該増分がWD/(N×M)である
ことを特徴とする。 A skiving cutter according to a fourth invention for solving the above-mentioned problems is as follows.
In the cutter for skiving processing according to the second or third invention,
When the height of the cutting teeth of the final cutter is WD, the number of the cutters is M, and the number of cuttings is N, the increment of the height of the cutting teeth of each cutter is the same, The increment is WD / (N × M).
上記第2又は第3の発明に記載のスカイビング加工用カッタにおいて、
最終の前記カッタの前記切削歯の歯丈がWD、前記カッタの枚数がM、切り込み回数がNである場合に、各々の前記カッタの前記切削歯の前記歯丈の増分が同じであり、当該増分がWD/(N×M)である
ことを特徴とする。 A skiving cutter according to a fourth invention for solving the above-mentioned problems is as follows.
In the cutter for skiving processing according to the second or third invention,
When the height of the cutting teeth of the final cutter is WD, the number of the cutters is M, and the number of cuttings is N, the increment of the height of the cutting teeth of each cutter is the same, The increment is WD / (N × M).
上記課題を解決する第5の発明に係るスカイビング加工用カッタは、
上記第1の発明に記載のスカイビング加工用カッタにおいて、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とする。 A skiving cutter according to a fifth invention for solving the above-mentioned problems is
In the skiving cutter according to the first invention,
According to the tooth trace direction of the cutting teeth, the height and thickness of the cutting teeth of each cutter are sequentially increased.
上記第1の発明に記載のスカイビング加工用カッタにおいて、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とする。 A skiving cutter according to a fifth invention for solving the above-mentioned problems is
In the skiving cutter according to the first invention,
According to the tooth trace direction of the cutting teeth, the height and thickness of the cutting teeth of each cutter are sequentially increased.
上記課題を解決する第6の発明に係るスカイビング加工用カッタは、
上記第5の発明に記載のスカイビング加工用カッタにおいて、
各々の前記カッタの前記切削歯の面積の増分が同じとなるように、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とする。 A skiving cutter according to a sixth invention for solving the above-mentioned problems is
In the skiving cutter according to the fifth invention,
The height and thickness of the cutting teeth of each cutter are sequentially increased so that the increment of the area of the cutting teeth of each cutter is the same.
上記第5の発明に記載のスカイビング加工用カッタにおいて、
各々の前記カッタの前記切削歯の面積の増分が同じとなるように、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とする。 A skiving cutter according to a sixth invention for solving the above-mentioned problems is
In the skiving cutter according to the fifth invention,
The height and thickness of the cutting teeth of each cutter are sequentially increased so that the increment of the area of the cutting teeth of each cutter is the same.
上記課題を解決する第7の発明に係るスカイビング加工用カッタは、
上記第5又は第6の発明に記載のスカイビング加工用カッタにおいて、
最終の前記カッタの前記切削歯の歯丈がWD、切り込み回数がNである場合に、最終の前記カッタの前記切削歯の先端からWD/Nの範囲において、各々の前記カッタの前記切削歯の当該範囲における面積の増分が同じとなるように、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とする。 A skiving cutter according to a seventh invention for solving the above-mentioned problems is
In the cutter for skiving processing according to the fifth or sixth invention,
When the tooth height of the cutting tooth of the final cutter is WD and the number of cuttings is N, the cutting tooth of each cutter is within the range of WD / N from the tip of the cutting tooth of the final cutter. The height and thickness of the cutting teeth of each cutter are sequentially increased so that the increment of the area in the range is the same.
上記第5又は第6の発明に記載のスカイビング加工用カッタにおいて、
最終の前記カッタの前記切削歯の歯丈がWD、切り込み回数がNである場合に、最終の前記カッタの前記切削歯の先端からWD/Nの範囲において、各々の前記カッタの前記切削歯の当該範囲における面積の増分が同じとなるように、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とする。 A skiving cutter according to a seventh invention for solving the above-mentioned problems is
In the cutter for skiving processing according to the fifth or sixth invention,
When the tooth height of the cutting tooth of the final cutter is WD and the number of cuttings is N, the cutting tooth of each cutter is within the range of WD / N from the tip of the cutting tooth of the final cutter. The height and thickness of the cutting teeth of each cutter are sequentially increased so that the increment of the area in the range is the same.
本発明によれば、加工効率が高く、工具寿命が長いスカイビング加工用カッタを提供することができる。
According to the present invention, it is possible to provide a skiving cutter with high machining efficiency and a long tool life.
以下、図1~図3を参照して、本発明に係るスカイビング加工用カッタの実施形態を説明する。
Hereinafter, an embodiment of a skiving cutter according to the present invention will be described with reference to FIGS.
(実施例1)
図1(a)は、本実施例のスカイビング加工用カッタ10を示す側面図である。スカイビング加工用カッタ10は、ピニオンカッタ形状の3枚のカッタ11~13を組み合わせて構成している。各カッタ11~13の外周には、それらの軸方向Aと交差するように、複数の切削歯14~16が形成されている。例えば、カッタ11の切削歯14は、図1(b)の拡大図に示すように、台形状の歯形を有しており、その手前側の端面がすくい面14a(図1(a)では下側)となっている。そして、各々の切削歯14~16の位相を合わせて、言い換えると、各々の切削歯14~16の歯筋方向B(切削の進行方向)が同一線上に揃うように配置して、カッタ11~13を順次重ねて組み合わせている。 (Example 1)
FIG. 1A is a side view showing a skivingcutter 10 of this embodiment. The skiving cutter 10 is formed by combining three cutters 11 to 13 each having a pinion cutter shape. A plurality of cutting teeth 14 to 16 are formed on the outer circumferences of the cutters 11 to 13 so as to intersect the axial direction A thereof. For example, the cutting teeth 14 of the cutter 11 have a trapezoidal tooth profile, as shown in the enlarged view of FIG. 1B, and the end face on the front side is a rake face 14a (the lower side in FIG. 1A). Side). Then, the phases of the cutting teeth 14 to 16 are matched, in other words, the cutting teeth 14 to 16 are arranged so that the tooth trace directions B (cutting progress directions) are aligned on the same line, and the cutters 11 to 16 are arranged. 13 are sequentially stacked and combined.
図1(a)は、本実施例のスカイビング加工用カッタ10を示す側面図である。スカイビング加工用カッタ10は、ピニオンカッタ形状の3枚のカッタ11~13を組み合わせて構成している。各カッタ11~13の外周には、それらの軸方向Aと交差するように、複数の切削歯14~16が形成されている。例えば、カッタ11の切削歯14は、図1(b)の拡大図に示すように、台形状の歯形を有しており、その手前側の端面がすくい面14a(図1(a)では下側)となっている。そして、各々の切削歯14~16の位相を合わせて、言い換えると、各々の切削歯14~16の歯筋方向B(切削の進行方向)が同一線上に揃うように配置して、カッタ11~13を順次重ねて組み合わせている。 (Example 1)
FIG. 1A is a side view showing a skiving
各々の切削歯14~16は、転位(歯丈、歯厚など)を順次変えている。本実施例では、図2に示すように、各々の切削歯14~16のすくい面14a~16aを、歯筋方向Bに沿って、歯丈を小さい方から大きい方へ順次変えている。具体的には、最終の切削歯16のすくい面16aの歯丈をWD、カッタの枚数をM枚、切り込み回数をN回とすると、歯丈の増分Dを同じとし、D=WD/(N×M)としている。
Each of the cutting teeth 14 to 16 sequentially changes the dislocation (tooth height, tooth thickness, etc.). In the present embodiment, as shown in FIG. 2, the rake surfaces 14a to 16a of the cutting teeth 14 to 16 are sequentially changed along the tooth trace direction B from the smallest to the largest. Specifically, if the tooth height of the rake face 16a of the final cutting tooth 16 is WD, the number of cutters is M, and the number of cuts is N, the increment D of the tooth height is the same, and D = WD / (N × M).
例えば、カッタ11~13の枚数を3枚、切り込み回数を2回とする場合には、最終の切削歯16のすくい面16aの歯丈Hが、H=WDであるのに対し、切削歯15のすくい面15aの歯丈Hは、H=WD-WD/(2×3)=WD×5/6となり、切削歯14のすくい面14aの歯丈Hは、H=WD-WD/(2×3)-WD/(2×3)=WD×4/6=WD×2/3となる。
For example, when the number of cutters 11 to 13 is three and the number of times of cutting is two, the tooth height H of the rake face 16a of the final cutting tooth 16 is H = WD, while the cutting tooth 15 The tooth height H of the rake face 15a is H = WD−WD / (2 × 3) = WD × 5/6, and the tooth height H of the rake face 14a of the cutting tooth 14 is H = WD−WD / (2 × 3) −WD / (2 × 3) = WD × 4/6 = WD × 2/3.
又、カッタ11~13の枚数を3枚、切り込み回数を1回とする場合には、最終の切削歯16のすくい面16aの歯丈Hが、H=WDであるのに対し、切削歯15のすくい面15aの歯丈Hは、H=WD-WD/3=WD×2/3となり、切削歯14のすくい面14aの歯丈Hは、H=WD-WD/3-WD/3=WD×1/3となる。
When the number of cutters 11 to 13 is three and the number of cuts is one, the tooth height H of the rake face 16a of the final cutting tooth 16 is H = WD, while the cutting tooth 15 The tooth height H of the rake face 15a is H = WD−WD / 3 = WD × 2/3, and the tooth height H of the rake face 14a of the cutting tooth 14 is H = WD−WD / 3−WD / 3 = WD × 1/3.
なお、歯厚については、最終の切削歯16の歯厚に対し、他の切削歯14、15の歯厚は、少し小さくしており、他の切削歯14、15同士の歯厚は、同じにしている。
Regarding the tooth thickness, the tooth thicknesses of the other cutting teeth 14 and 15 are slightly smaller than the tooth thickness of the final cutting tooth 16, and the tooth thicknesses of the other cutting teeth 14 and 15 are the same. I have to.
スカイビング加工は、加工負荷が高いため、従来は、切り込みを数回(6~7回程度)に分ける必要があったが、上述した構成のスカイビング加工用カッタ10を使用することにより、1回もしくは2回程度の切り込みでスカイビング加工が行え、加工効率を上げることができる。又、従来は、数回(6~7回程度)の切り込みを行うため、工具寿命が短かったが、上述した構成のスカイビング加工用カッタ10を使用することにより、工具寿命を延ばすこともできる。
Since skiving processing has a high processing load, conventionally, it has been necessary to divide the cut into several times (about 6 to 7 times). However, by using the skiving processing cutter 10 having the above-described configuration, Skiving can be performed by cutting once or twice, and the processing efficiency can be increased. Conventionally, the tool life is short because cutting is performed several times (about 6 to 7 times), but the tool life can be extended by using the skiving cutter 10 having the above-described configuration. .
(実施例2)
本実施例のスカイビングカッタは、基本的には、実施例1に示したスカイビングカッタ10と同等の構成である。つまり、複数枚のカッタを、各々の切削歯の位相を合わせ、順次重ねて組み合わせて構成している。そのため、実施例1に示したスカイビングカッタ10と同じ符号を用いて、本実施例のスカイビングカッタを説明する。 (Example 2)
The skiving cutter of the present embodiment has basically the same configuration as the skivingcutter 10 shown in the first embodiment. That is, a plurality of cutters are configured by matching the phases of the respective cutting teeth and sequentially overlapping and combining them. Therefore, the skiving cutter of the present embodiment will be described using the same reference numerals as the skiving cutter 10 shown in the first embodiment.
本実施例のスカイビングカッタは、基本的には、実施例1に示したスカイビングカッタ10と同等の構成である。つまり、複数枚のカッタを、各々の切削歯の位相を合わせ、順次重ねて組み合わせて構成している。そのため、実施例1に示したスカイビングカッタ10と同じ符号を用いて、本実施例のスカイビングカッタを説明する。 (Example 2)
The skiving cutter of the present embodiment has basically the same configuration as the skiving
実施例1に示したスカイビングカッタ10では、図2に示したように、切削歯14~16のすくい面14a~16aを、歯筋方向Bに沿って、歯丈を小さい方から大きい方へ順次変えているのに対し、本実施例では、図3に示すように、切削歯14~16のすくい面14a~16aを、歯筋方向Bに沿って、歯丈と共に歯厚も小さい方から大きい方へ順次変えている。
In the skiving cutter 10 shown in the first embodiment, as shown in FIG. 2, the rake surfaces 14a to 16a of the cutting teeth 14 to 16 are moved along the tooth trace direction B from the smaller tooth height to the larger tooth height. In contrast to the sequential change, in the present embodiment, as shown in FIG. 3, the rake surfaces 14a to 16a of the cutting teeth 14 to 16 are arranged along the tooth trace direction B from the side where the tooth thickness and the tooth thickness are smaller. We change sequentially to the larger one.
具体的には、最終の切削歯16のすくい面16aの歯丈をWD、切り込み回数をN回とすると、切削歯16の先端からWD/Nの範囲において、各切削歯14~16のすくい面14a~16aの面積の増分が同じになるように、歯丈及び歯厚を小さい方から大きい方へ順次変えている。
Specifically, if the tooth height of the rake face 16a of the final cutting tooth 16 is WD and the number of cuts is N, the rake face of each cutting tooth 14 to 16 is within the range of WD / N from the tip of the cutting tooth 16. The tooth height and the tooth thickness are sequentially changed from the smaller to the larger so that the increments of the areas 14a to 16a are the same.
例えば、切り込み回数を2回とする場合には、最終の切削歯16のすくい面16aの歯丈の先端からWD/2の範囲において、つまり、全歯丈の先端側半分の範囲において、各切削歯14~16のすくい面14a~16aの面積の増分が同じになるようにしている。図3を参照して説明すると、歯丈先端からWD/2の範囲において、切削歯14のすくい面14aの面積をS1とすると、切削歯15のすくい面15aの当該範囲の面積S2は、S2=2×S1となり、切削歯16のすくい面16aの当該範囲の面積S3は、S3=3×S1となり、このような面積となるように、歯丈及び歯厚を小さい方から大きい方へ順次変えている。
For example, when the number of cuts is two, each cutting is performed in the range of WD / 2 from the tip of the rake face 16a of the final cutting tooth 16; The increments of the areas of the rake faces 14a to 16a of the teeth 14 to 16 are made the same. If it demonstrates with reference to FIG. 3, if the area of the rake face 14a of the cutting tooth 14 is set to S1 in the range of WD / 2 from a tooth-length front end, the area S2 of the said range of the rake face 15a of the cutting tooth 15 will be S2. = 2 × S1, and the area S3 in the range of the rake face 16a of the cutting tooth 16 is S3 = 3 × S1, and the tooth height and the tooth thickness are sequentially increased from a smaller one to a larger one so as to have such an area. It is changing.
又、切り込み回数を1回とする場合には、最終の切削歯16のすくい面16aの歯丈の先端からWDの範囲において、つまり、全歯丈の範囲において、各切削歯14~16のすくい面14a~16aの面積の増分が同じになるようにしており、切削歯14のすくい面14aの全面積をS1とすると、切削歯15のすくい面15aの全面積S2は、S2=2×S1となり、切削歯16のすくい面16aの全面積S3は、S3=3×S1となり、このような面積となるように、歯丈及び歯厚を小さい方から大きい方へ順次変えている。
When the number of cuts is one, the rake of each cutting tooth 14 to 16 is within the range of WD from the tip of the rake face 16a of the final cutting tooth 16 to the WD, that is, within the entire tooth height. The increments of the areas of the surfaces 14a to 16a are made the same, and if the total area of the rake face 14a of the cutting tooth 14 is S1, the total area S2 of the rake face 15a of the cutting tooth 15 is S2 = 2 × S1. Thus, the total area S3 of the rake face 16a of the cutting tooth 16 is S3 = 3 × S1, and the tooth height and the tooth thickness are sequentially changed from a smaller one to a larger one so as to have such an area.
このような構成のスカイビング加工用カッタを使用することにより、1回もしくは2回程度の切り込みでスカイビング加工が行え、加工効率を上げることができ、又、工具寿命を延ばすこともできる。
By using the skiving cutter with such a configuration, skiving can be performed by cutting once or twice, the machining efficiency can be increased, and the tool life can be extended.
なお、上述した実施例1及び実施例2では、一例として、3枚のカッタ11~13からなるスカイビング加工用カッタ10を例示しており、現実的な使い方を考慮すると、2枚又は3枚のカッタから構成することが望ましいが、この枚数に限らず、4枚以上のカッタから構成しても良い。
In the above-described first and second embodiments, the skiving cutter 10 including three cutters 11 to 13 is illustrated as an example, and in consideration of practical usage, two or three However, the number of cutters is not limited to this, and the number of cutters may be four or more.
本発明は、スカイビング加工に使用されるピニオンカッタ形状のスカイビングカッタに好適なものである。
The present invention is suitable for a pinion cutter-shaped skiving cutter used for skiving processing.
10 スカイビングカッタ
11、12、13 カッタ
14、15、16 切削歯
14a、15a、16a すくい面 10 Skiving cutter 11, 12, 13 Cutter 14, 15, 16 Cutting teeth 14a, 15a, 16a Rake face
11、12、13 カッタ
14、15、16 切削歯
14a、15a、16a すくい面 10
Claims (7)
- 複数枚のピニオンカッタ形状のカッタが、各々の前記カッタの切削歯の位相が合うように重ねて組み合わされており、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の転位が順次大きくなっている
ことを特徴とするスカイビング加工用カッタ。 A plurality of pinion cutter-shaped cutters are stacked and combined so that the cutting teeth of each of the cutters are in phase with each other,
A skiving cutter, wherein dislocations of the cutting teeth of the cutters are sequentially increased along a tooth trace direction of the cutting teeth. - 請求項1に記載のスカイビング加工用カッタにおいて、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の歯丈が順次大きくなっている
ことを特徴とするスカイビング加工用カッタ。 The skiving cutter according to claim 1,
A cutter for skiving, wherein the height of the cutting teeth of each of the cutters is sequentially increased along the tooth trace direction of the cutting teeth. - 請求項2に記載のスカイビング加工用カッタにおいて、
各々の前記カッタの前記切削歯の前記歯丈の増分が同じである
ことを特徴とするスカイビング加工用カッタ。 The skiving cutter according to claim 2,
A cutter for skiving, wherein the increment of the tooth height of the cutting teeth of each cutter is the same. - 請求項2又は請求項3に記載のスカイビング加工用カッタにおいて、
最終の前記カッタの前記切削歯の歯丈がWD、前記カッタの枚数がM、切り込み回数がNである場合に、各々の前記カッタの前記切削歯の前記歯丈の増分が同じであり、当該増分がWD/(N×M)である
ことを特徴とするスカイビング加工用カッタ。 In the skiving cutter according to claim 2 or 3,
When the height of the cutting teeth of the final cutter is WD, the number of the cutters is M, and the number of cuttings is N, the increment of the height of the cutting teeth of each cutter is the same, A cutter for skiving, wherein the increment is WD / (N × M). - 請求項1に記載のスカイビング加工用カッタにおいて、
前記切削歯の歯筋方向に沿って、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とするスカイビング加工用カッタ。 The skiving cutter according to claim 1,
A cutter for skiving, wherein the cutting tooth height and the tooth thickness of each of the cutters are sequentially increased along the tooth trace direction of the cutting tooth. - 請求項5に記載のスカイビング加工用カッタにおいて、
各々の前記カッタの前記切削歯の面積の増分が同じとなるように、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とするスカイビング加工用カッタ。 The skiving cutter according to claim 5,
A cutter for skiving, wherein the height and thickness of the cutting teeth of each cutter are sequentially increased so that the increment of the area of the cutting teeth of each cutter is the same. - 請求項5又は請求項6に記載のスカイビング加工用カッタにおいて、
最終の前記カッタの前記切削歯の歯丈がWD、切り込み回数がNである場合に、最終の前記カッタの前記切削歯の先端からWD/Nの範囲において、各々の前記カッタの前記切削歯の当該範囲における面積の増分が同じとなるように、各々の前記カッタの前記切削歯の歯丈及び歯厚が順次大きくなっている
ことを特徴とするスカイビング加工用カッタ。 In the cutter for skiving processing according to claim 5 or 6,
When the tooth height of the cutting tooth of the final cutter is WD and the number of cuttings is N, the cutting tooth of each cutter is within the range of WD / N from the tip of the cutting tooth of the final cutter. A cutter for skiving, wherein the height and thickness of the cutting teeth of each cutter are sequentially increased so that the area increments in the range are the same.
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US10434590B2 (en) | 2016-10-25 | 2019-10-08 | Mitsubishi Heavy Industries Machine Tool Co., Ltd. | Skiving cutter |
CN110465706A (en) * | 2019-07-10 | 2019-11-19 | 西安理工大学 | Hardened face gear smart car technique and its skiving devising method of cutting tool |
JP2020504023A (en) * | 2017-01-12 | 2020-02-06 | グリーソン − プァウター マシネンファブリク ゲーエムベーハー | Method for hard finishing toothed gears, especially internal gear parts, and machine tools suitable therefor |
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JP6928827B2 (en) * | 2017-05-03 | 2021-09-01 | 株式会社不二越 | Skying cutter |
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JP6529204B2 (en) * | 2018-07-04 | 2019-06-12 | 三菱重工工作機械株式会社 | Skiving cutter |
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