JP5514208B2 - Chamfer cutter - Google Patents

Chamfer cutter Download PDF

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JP5514208B2
JP5514208B2 JP2011523739A JP2011523739A JP5514208B2 JP 5514208 B2 JP5514208 B2 JP 5514208B2 JP 2011523739 A JP2011523739 A JP 2011523739A JP 2011523739 A JP2011523739 A JP 2011523739A JP 5514208 B2 JP5514208 B2 JP 5514208B2
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blade
cutter
chamfering
arc surface
cutting
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JP2012500129A (en
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キム、ヤンベム
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キム、ヤンベム
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/12—Cutters specially designed for producing particular profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/08—Side or top views of the cutting edge
    • B23C2210/084—Curved cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2210/00—Details of milling cutters
    • B23C2210/08—Side or top views of the cutting edge
    • B23C2210/088—Cutting edges with a wave form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C2220/00—Details of milling processes
    • B23C2220/60—Roughing
    • B23C2220/605—Roughing and finishing

Description

本発明は面取りカッタに関し、さらに詳しくは、回転力を利用した面取機に装着される面取りカッタに関する。   The present invention relates to a chamfering cutter, and more particularly to a chamfering cutter attached to a chamfering machine using a rotational force.

工具や工作物の縁部または隅部を削り取って斜面または丸みをつける加工を面取り作業（chamfering）といい、これに用いられる機器を面取機という。   The process of scraping the edges or corners of tools and workpieces to make slopes or rounds is called chamfering, and the equipment used for this is called chamfering.

多様な方法で面取り作業を行う面取機があるが、回転軸の端部に装着された面取りカッタを回転させて加工する方法が代表的である。   There are chamfering machines that perform chamfering work by various methods, and a typical method is to rotate a chamfering cutter attached to an end of a rotating shaft.

このように、回転力を利用する面取機の場合に、面取り作業時に発生するチップ（Chip、切削粉）が問題となる。作業中に発生したチップが長くなれば、高速で回転する面取機に巻き取られ、面取り作業が難しくなる。さらに、小さなチップも速やかに排出させなければ、面取り作業時の切削負荷の増加につながり、面取り作業が難しくなるだけでなく、面取りカッタの寿命が短くなる原因となる。   Thus, in the case of a chamfering machine that uses rotational force, a chip (Chip, cutting powder) generated during chamfering work becomes a problem. If the chip generated during the work becomes long, it is wound around a chamfering machine that rotates at high speed, and the chamfering work becomes difficult. Furthermore, if the small chips are not discharged quickly, the cutting load during the chamfering operation is increased, which not only makes the chamfering operation difficult, but also shortens the life of the chamfering cutter.

従って、面取り作業中に発生したチップに関するこれらの問題を解決するために、たとえば面取りカッタに排出溝を形成するなどの試みがあったが、効果は大きくなかった。   Therefore, in order to solve these problems related to the chips generated during the chamfering operation, for example, an attempt has been made to form a discharge groove in the chamfering cutter, but the effect has not been great.

本発明は上記問題に鑑みてなされたものであって、その目的は、面取り作業中に発生するチップの処理能力を向上させて切削負荷を減少させた面取りカッタを提供することにある。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a chamfering cutter in which the processing capability of a chip generated during a chamfering operation is improved to reduce a cutting load.

本発明に係る面取りカッタは、面取機の回転軸に連結されて回転しながら、物体の隅部などを整える面取りカッタにおいて、前記回転軸の端部とカッタとを連結するために、前記カッタの中心に、締結用ボルトが挿入される貫通孔が形成され、前記カッタは、前記貫通孔を中心に放射状に位置する複数の切刃が一体に形成された歯車状であり、前記切刃は全体的に中心に向かって突出した形状であって、前記切刃のそれぞれが、回転方向における切刃端部に形成された刃部と、凹弧面をなしている弧面部を含んでなり、前記切刃は前記弧面部の表面が滑らかな仕上げ刃と前記弧面部の表面が荒い荒削刃とが交互に位置することを特徴とする。このとき、仕上げ刃の前記刃部と連結された前記弧面部の端部に断面が２段の角度からなるチップブレーカが形成されることが好ましい。   The chamfering cutter according to the present invention is a chamfering cutter that adjusts a corner portion of an object while being connected to a rotating shaft of a chamfering machine and rotating the cutter to connect the end of the rotating shaft and the cutter. A through hole into which a fastening bolt is inserted is formed at the center of the cutter, and the cutter has a gear shape in which a plurality of cutting blades radially formed around the through hole are integrally formed, Each of the cutting blades has a shape projecting toward the center as a whole, and each of the cutting blades includes a blade portion formed at a cutting blade end portion in a rotation direction, and an arc surface portion forming a concave arc surface, The cutting blade is characterized in that a finishing blade whose surface of the arc surface portion is smooth and a rough cutting blade whose surface of the arc surface portion is rough are alternately positioned. At this time, it is preferable that a chip breaker having a two-step cross section is formed at an end of the arc surface portion connected to the blade portion of the finishing blade.

さらに、貫通孔には締結用ボルトのヘッドが係止される固定部を形成することができ、この固定部の形状はテーパされた形状であることが好ましい。   Further, a fixing portion to which the head of the fastening bolt is locked can be formed in the through hole, and the shape of the fixing portion is preferably a tapered shape.

本発明によれば、作業中に発生するチップの処理能力を向上させることによって、切削負荷を減少させるため、面取り作業が容易であり、作業速度が向上し、面取りカッタの寿命が延びるという効果を奏する。   According to the present invention, since the cutting load is reduced by improving the processing capacity of the chips generated during the work, the chamfering work is easy, the working speed is improved, and the life of the chamfering cutter is extended. Play.

本発明の一実施形態に係る面取りカッタの斜視図である。It is a perspective view of the chamfering cutter concerning one embodiment of the present invention. 図１に示す面取りカッタの正面図である。It is a front view of the chamfering cutter shown in FIG. 図２に示す面取りカッタのＡ−Ａ’線に沿った断面図である。It is sectional drawing along the A-A 'line | wire of the chamfering cutter shown in FIG. 図２に示す面取りカッタの背面図である。It is a rear view of the chamfering cutter shown in FIG. 図２に示す面取りカッタのＢ−Ｂ’線に沿った断面図である。It is sectional drawing along the B-B 'line of the chamfering cutter shown in FIG. 図３において「Ｃ」で表示した荒削刃の弧面部の断面の多様な形状を示す図である。It is a figure which shows the various shapes of the cross section of the arc surface part of the roughing blade displayed by "C" in FIG.

本発明を添付する図面を参照して詳細に説明すれば、以下の通りである。   Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

図１は、本発明の一実施形態に係る面取りカッタの斜視図であり、図２は、図１に示す面取りカッタの正面図であり、図３は、図２に示す面取りカッタのＡ−Ａ’線に沿った断面図であり、図４は、図２に示す面取りカッタの背面図である。   1 is a perspective view of a chamfering cutter according to an embodiment of the present invention, FIG. 2 is a front view of the chamfering cutter shown in FIG. 1, and FIG. 3 is an AA view of the chamfering cutter shown in FIG. FIG. 4 is a rear view of the chamfering cutter shown in FIG. 2.

図１および図２に示されるように、本発明の面取りカッタは、カッタを回転軸に固定するために、締結用ボルトが挿入される貫通孔１０が中央に形成されている。カッタは、貫通孔１０の周囲に放射状に複数の切刃２０が形成された歯車状をなしている。このとき、切刃２０の数は４〜８個とすることが可能であり、本実施形態では６個である。   As shown in FIGS. 1 and 2, the chamfering cutter of the present invention has a through hole 10 in the center into which a fastening bolt is inserted in order to fix the cutter to the rotating shaft. The cutter has a gear shape in which a plurality of cutting blades 20 are radially formed around the through hole 10. At this time, the number of the cutting blades 20 can be 4 to 8, and is 6 in the present embodiment.

図１と図３で見られるように、各切刃２０は全体的に中心に向かって突出した形状である。   As can be seen in FIGS. 1 and 3, each cutting edge 20 has a shape projecting toward the center as a whole.

そして、各切刃２０は、回転方向の端部に形成されて回転運動時に切削作業を行う刃部３２、４２と、この刃部３２、４２につながり、凹弧面をなしている弧面部３４、４４を含んでなる。また、各切刃は刃部から回転反対方向に断面の厚さが減少し、次の切刃の切削部と会う部分で最も薄くなる形状である。そして、刃部３２、４２は直径に対して回転方向に所定の角度だけ斜めに形成される。   Each of the cutting blades 20 is formed at an end portion in the rotational direction, and blade portions 32 and 42 that perform a cutting operation during the rotational movement, and an arc surface portion 34 that is connected to the blade portions 32 and 42 and forms a concave arc surface. , 44. In addition, each cutting blade has a shape in which the thickness of the cross section decreases in the direction opposite to the rotation from the blade portion, and becomes the thinnest at the portion that meets the cutting portion of the next cutting blade. The blade portions 32 and 42 are formed obliquely by a predetermined angle in the rotational direction with respect to the diameter.

このような切刃２０は弧面部３４、４４の加工形態によって仕上げ刃３０と荒削刃４０とに区分され、２種類の切刃３０、４０が交互に位置する。仕上げ刃３０は、弧面部３４が滑らかに加工されて仕上げを行う部分であり、荒削刃４０は、弧面部４４が荒く加工されて荒削を行う部分である。   Such a cutting blade 20 is divided into a finishing blade 30 and a roughing blade 40 according to the processing form of the arc surface portions 34 and 44, and two types of cutting blades 30 and 40 are alternately positioned. The finishing blade 30 is a portion where the arc surface portion 34 is smoothly processed and finished, and the roughing blade 40 is a portion where the arc surface portion 44 is processed rough and roughing.

図５は、図２に示す面取りカッタのＢ−Ｂ’線に沿った断面図である。刃部３２と連結される弧面部３４の端部には、断面を２段の角度で処理したチップブレーカ３６が形成される。このチップブレーカ３６は刃部３２と連結された部分に全体的な弧面部３４の断面角度よりも角度が小さな部分を形成したものである。このような形状のチップブレーカ３６を形成する場合、面取り作業中に発生するチップの大きさが小さくなり、発生したチップが直ぐ排出されるため、切削負荷が３０％程度減少するという効果がある。   FIG. 5 is a cross-sectional view taken along line B-B ′ of the chamfered cutter shown in FIG. 2. A chip breaker 36 whose cross section is processed at two angles is formed at the end of the arc surface 34 connected to the blade 32. The chip breaker 36 is formed by forming a portion having a smaller angle than the overall cross-sectional angle of the arc surface portion 34 at a portion connected to the blade portion 32. When the chip breaker 36 having such a shape is formed, the size of the chip generated during the chamfering operation is reduced, and the generated chip is immediately discharged, so that the cutting load is reduced by about 30%.

図６は、図３において「Ｃ」で表示した荒削刃の弧面部の断面の多様な形状を示す図である。図示するように、多様な断面を有する荒削刃４０では仕上げのような精密な作業はできないが、面取り作業中に発生するチップの大きさが小さく、切削負荷が遥かに小さくかかる。   FIG. 6 is a diagram showing various shapes of the cross section of the arc surface portion of the roughing blade indicated by “C” in FIG. 3. As shown in the figure, the roughing blade 40 having various cross sections cannot perform a precise operation such as finishing, but the size of the chip generated during the chamfering operation is small and the cutting load is much smaller.

従って、本実施形態のように、チップブレーカ３６が形成された仕上げ刃３０と荒削刃４０とが交互に位置する面取りカッタを用いれば、一般の面取りカッタに比べて切削負荷が６０％程度減少するという優れた効果がある。   Therefore, if a chamfering cutter in which the finishing blade 30 with the chip breaker 36 formed and the roughing blade 40 are alternately positioned as in this embodiment is used, the cutting load is reduced by about 60% compared to a general chamfering cutter. There is an excellent effect of.

さらに、本発明の面取りカッタは、図３に示すように、固定部１２の断面が直角で段差がついた形状ではなく、直径が次第に減少するテーパされた形状である。固定部１２は、貫通孔１０に締結される締結用ボルトのヘッドが係止される部分である。   Furthermore, as shown in FIG. 3, the chamfering cutter of the present invention is not a shape in which the cross section of the fixing portion 12 is perpendicular and has a step, but a tapered shape in which the diameter gradually decreases. The fixing portion 12 is a portion where a head of a fastening bolt fastened to the through hole 10 is locked.

従来の段差がついた形状の固定部を有する場合、締結用ボルトのヘッドが固定部に均等に当接できないため、ボルトの固定時に固定する力が弱く、これを解決するために別途のワッシャを用いなければならなかった。   In the case of having a conventional fixing part with a stepped portion, the fastening bolt head cannot evenly contact the fixing part, so the fixing force when fixing the bolt is weak, and a separate washer is used to solve this problem. Had to use.

反面、本発明のように、テーパされた形状の固定部１２とこれに対応する形状のヘッドを有するボルトを用いれば、ボルトとの接触面積が大きく増加し、固定する力が大きく増加する。   On the other hand, if a bolt having a tapered fixing portion 12 and a head having a corresponding shape is used as in the present invention, the contact area with the bolt is greatly increased, and the fixing force is greatly increased.

以上では、本発明を特定の好適な実施形態について図示し、説明した。しかし、本発明は上述した実施形態に限定されるものではなく、本発明の属する技術分野における通常の知識を有する者であれば、本発明の技術的思想から逸脱することなく、いくらでも多様に変更実施できる。従って、本発明の権利範囲は特定の実施形態に限定されるものではなく、添付された特許請求の範囲により定まるものと解釈されるべきである。   The present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the technical idea of the present invention as long as the person has ordinary knowledge in the technical field to which the present invention belongs. Can be implemented. Accordingly, the scope of the present invention should not be limited to the specific embodiments, but should be construed as defined by the appended claims.

１０ 貫通孔
１２ 固定部
２０ 切刃
３０ 仕上げ刃
４０ 荒削刃
３２、４２ 刃部
３４、４４ 弧面部
３６ チップブレーカ DESCRIPTION OF SYMBOLS 10 Through-hole 12 Fixed part 20 Cutting blade 30 Finishing blade 40 Roughing blade 32, 42 Blade part 34, 44 Arc surface part 36 Chip breaker

Claims (2)

面取機の回転軸に連結されて回転しながら、物体の隅部などを整える面取りカッタにおいて、
前記カッタの中心に貫通孔が形成され、前記カッタが、前記貫通孔に挿入される締結用ボルトにより、前記回転軸の端部と連結され、
前記カッタが、前記貫通孔を中心に放射状に位置する複数の切刃が一体に形成された歯車状であり、
前記切刃は、全体的に中心に向かって突出した形状であって、それぞれの切刃は、回転方向の端部に形成された刃部と、該刃部につながり、凹弧面をなしている弧面部を含んでなり、
前記切刃は、前記弧面部の表面が滑らかな仕上げ刃と、前記弧面部の表面が荒い荒削刃とが交互に位置し、
前記仕上げ刃の前記刃部と前記弧面部との間に、前記回転方向に沿う断面を２段の角度となるように処理したチップブレーカが形成されていることを特徴とする面取りカッタ。 In a chamfering cutter that adjusts the corners of an object while rotating by being connected to the rotating shaft of a chamfering machine,
A through hole is formed in the center of the cutter, and the cutter is connected to an end of the rotary shaft by a fastening bolt inserted into the through hole;
The cutter has a gear shape in which a plurality of cutting blades radially formed around the through hole are integrally formed,
Each of the cutting blades has a shape protruding toward the center as a whole, and each cutting blade is connected to a blade portion formed at an end portion in the rotation direction and the blade portion to form a concave arc surface. Comprising an arcuate surface,
In the cutting blade, the finishing blade whose surface of the arc surface portion is smooth and the rough cutting blade whose surface of the arc surface portion is rough are alternately positioned ,
A chamfering cutter in which a chip breaker is formed between the blade portion and the arc surface portion of the finishing blade so that a cross section along the rotation direction has a two-step angle . 前記貫通孔に前記締結用ボルトのヘッドが係止される固定部が形成され、前記固定部の形状はテーパされた形状であることを特徴とする請求項１記載の面取りカッタ。 Wherein the fastening bolt head into the through hole fixing portion to be engaged is formed, according to claim 1 Symbol mounting chamfer cutter, characterized in that the shape of the fixing portion is a tapered shape.
JP2011523739A 2008-08-21 2009-08-19 Chamfer cutter Expired - Fee Related JP5514208B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR10-2008-0081926 2008-08-21
KR20080081926 2008-08-21
KR1020080089433A KR100913411B1 (en) 2008-08-21 2008-09-10 Cutter for chamfering
KR10-2008-0089433 2008-09-10
PCT/KR2009/004610 WO2010021487A1 (en) 2008-08-21 2009-08-19 Cutter for chamfering

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JP2012500129A JP2012500129A (en) 2012-01-05
JP5514208B2 true JP5514208B2 (en) 2014-06-04

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KR (1) KR100913411B1 (en)
CN (1) CN102131605B (en)
BR (1) BRPI0912944A2 (en)
TW (1) TWI408019B (en)
WO (1) WO2010021487A1 (en)

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KR100913411B1 (en) 2009-08-21
CN102131605B (en) 2013-07-24
TWI408019B (en) 2013-09-11
TW201016357A (en) 2010-05-01
JP2012500129A (en) 2012-01-05
CN102131605A (en) 2011-07-20
BRPI0912944A2 (en) 2018-02-06

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