JP2007160480A - Chamfering tool - Google Patents

Chamfering tool Download PDF

Info

Publication number
JP2007160480A
JP2007160480A JP2005362842A JP2005362842A JP2007160480A JP 2007160480 A JP2007160480 A JP 2007160480A JP 2005362842 A JP2005362842 A JP 2005362842A JP 2005362842 A JP2005362842 A JP 2005362842A JP 2007160480 A JP2007160480 A JP 2007160480A
Authority
JP
Japan
Prior art keywords
chamfering
edge
cutter blade
axis
inclined hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2005362842A
Other languages
Japanese (ja)
Inventor
Joji Kikuhara
丈二 菊原
Shinya Ikeda
信也 池田
Shinko Ono
真弘 大野
Katsuhiro Arahori
勝広 荒堀
Tetsuya Hayashi
林  哲也
Tomoya Otani
友也 大谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2005362842A priority Critical patent/JP2007160480A/en
Publication of JP2007160480A publication Critical patent/JP2007160480A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To uniformly chamfer an edge of an inclined hole formed in a direction inclined to a normal line of the surface of a workpiece. <P>SOLUTION: A cutter blade 15 is oscillatably and pivotally supported at a distal end of a holder 14 connected to a shank 12 to rotate around an axis Lt via a pin 19 orthogonal to the axis Lt. A pair of chamfering blades 15a are formed to intersect the cutter blade 15 at an angle of 90°. When chamfering the edge of the inclined hole H inclined to the normal line N on the surface of the workpiece W by an angle θ, a difference of heights of an axis Lw direction of the edge of the inclined hole H is absorbed by oscillation of the cutter blade 15 around the pin 19. By bringing the chamfering blades 15a into contact with the edge by uniform contact pressure, the edge can be uniformly chamfered, although this chamfering tool has an extremely simple and inexpensive structure. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、ワークの表面の法線に対して傾斜した方向に形成された傾斜孔のエッジを面取りするための面取り工具に関する。   The present invention relates to a chamfering tool for chamfering an edge of an inclined hole formed in a direction inclined with respect to a normal line of a surface of a workpiece.

ワークWの表面の法線Nに対して角度θ傾斜した方向に形成された傾斜孔Hのエッジを面取りする場合、図5に示すように、従来の円錐状の面取りカッターTを使用すると、傾斜孔Hのエッジの高い部分が幅広く面取りされて低い部分が殆ど面取りされないため、面取り幅が円周方向に不均一になってしまう問題があった。   When chamfering the edge of the inclined hole H formed in the direction inclined by the angle θ with respect to the normal line N of the surface of the workpiece W, as shown in FIG. Since the high part of the hole H is chamfered widely and the low part is hardly chamfered, the chamfer width becomes uneven in the circumferential direction.

そこで下記特許文献1に記載されたものは、ホルダ本体11と、刃具15およびガイド溝16有する可動プレート14と、ガイド溝16に係合するガイド凸条17を有して可動プレート14をホルダ本体11の先端部に旋回運動可能に支持するガイドプレート18と、可動プレート14を原位置に向けて付勢する復帰用スプリング22と、可動プレート14の旋回運動範囲を規制するストッパ23a,23bとを備え、ホルダ本体11に対して可動プレート14を旋回運動させながら刃具15でワーク1の傾斜面に形成された穴2のエッジを均一に面取りするようになっている。   Therefore, what is described in Patent Document 1 below includes a holder main body 11, a movable plate 14 having a cutting tool 15 and a guide groove 16, and a guide protrusion 17 that engages with the guide groove 16, and the movable plate 14 is attached to the holder main body. 11 is provided with a guide plate 18 supported so as to be capable of swiveling motion, a return spring 22 that urges the movable plate 14 toward the original position, and stoppers 23a and 23b for restricting the swivel motion range of the movable plate 14. In addition, the edge of the hole 2 formed on the inclined surface of the work 1 is uniformly chamfered with the blade 15 while the movable plate 14 is swiveled with respect to the holder main body 11.

また下記特許文献2に記載されたものは、円錐状の面取りドリルと、ワーク(クランクシャフトのピン)2の表面に対して傾斜する傾斜孔(油穴)3とを三次元座標上にモデル化し、傾斜孔3に対する面取りドリルの適切な進入角を演算することで、前記傾斜孔3のエッジを均一に面取りするようになっている。
特開平5−162008号公報 特開2000−198004号公報
In addition, what is described in Patent Document 2 below is a model in which a conical chamfer drill and an inclined hole (oil hole) 3 inclined with respect to the surface of a workpiece (crankshaft pin) 2 are modeled on three-dimensional coordinates. The edge of the inclined hole 3 is uniformly chamfered by calculating an appropriate approach angle of the chamfering drill with respect to the inclined hole 3.
Japanese Patent Laid-Open No. 5-162008 JP 2000-198004 A

ところで上記特許文献1に記載されたものは、ホルダ本体11、可動プレート14、刃具15、ガイドプレート18、復帰用スプリング22、ストッパ23a,23b等の多数の部品を必要とするため、部品点数が増加して価格が高くなる問題がある。   By the way, what is described in Patent Document 1 requires a large number of parts such as the holder main body 11, the movable plate 14, the blade 15, the guide plate 18, the return spring 22, and the stoppers 23a and 23b. There is a problem that the price increases due to the increase.

また上記特許文献2に記載されたものは、傾斜孔3に対する面取りドリルの適切な進入角を求める複雑な演算が必要であるだけでなく、演算された進入角で面取りドリルを進入させるにはNC工作機械が必要になるため、非常に高価になる問題がある。   Moreover, what was described in the said patent document 2 requires not only the complicated calculation which calculates | requires the suitable approach angle of the chamfering drill with respect to the inclination hole 3, but NC to make a chamfering drill approach with the calculated approach angle. Since a machine tool is required, there is a problem that it becomes very expensive.

本発明は前述の事情に鑑みてなされたもので、ワークの表面の法線に対して傾斜した方向に形成された傾斜孔のエッジを均一に面取りすることを目的とする。   The present invention has been made in view of the above-described circumstances, and an object thereof is to uniformly chamfer the edges of inclined holes formed in a direction inclined with respect to the normal line of the surface of a workpiece.

上記目的を達成するために、請求項1に記載された発明によれば、ワークの表面の法線に対して傾斜した方向に形成された傾斜孔のエッジを面取りするための面取り工具において、シャンクと共に軸線まわりに回転するホルダの先端に該軸線に直交するピンを介してカッターブレードを揺動自在に枢支し、前記カッターブレードに所定角度で交差する一対の面取り刃を形成したことを特徴とする面取り工具が提案される。   To achieve the above object, according to the first aspect of the present invention, in the chamfering tool for chamfering the edge of the inclined hole formed in the direction inclined with respect to the normal of the surface of the workpiece, A cutter blade is pivotally supported at the tip of a holder that rotates about an axis through a pin orthogonal to the axis so as to form a pair of chamfering blades that intersect the cutter blade at a predetermined angle. A chamfering tool is proposed.

また請求項2に記載された発明によれば、請求項1の構成に加えて、前記ホルダを前記シャンクから突出する方向に付勢する弾発手段を設けたことを特徴とする面取り工具が提案される。   According to the invention described in claim 2, in addition to the structure of claim 1, there is proposed a chamfering tool characterized in that a resilient means for urging the holder in a direction protruding from the shank is provided. Is done.

尚、実施例のダンパースプリング17は本発明の弾発手段に対応する。   In addition, the damper spring 17 of an Example respond | corresponds to the elastic means of this invention.

請求項1の構成によれば、シャンクに接続されて軸線まわりに回転するホルダの先端にピンを介して揺動自在に枢支されたカッターブレードに、所定角度で交差する一対の面取り刃を形成したので、ワークの表面の法線に対して傾斜する傾斜孔のエッジを面取りする際に、傾斜孔のエッジの軸線方向の高さの差をピンまわりのカッターブレードの揺動により吸収し、一対の面取り刃を均等な接触圧で傾斜孔のエッジに接触させることにより、極めて簡単で安価な構造でありながら傾斜孔のエッジを均一に面取りすることが可能になる。   According to the configuration of the first aspect, the pair of chamfering blades intersecting at a predetermined angle is formed on the cutter blade pivotally supported via the pin at the tip of the holder connected to the shank and rotating around the axis. Therefore, when chamfering the edge of the inclined hole inclined with respect to the normal of the workpiece surface, the difference in the axial height of the edge of the inclined hole is absorbed by the oscillation of the cutter blade around the pin. By bringing the chamfering blade into contact with the edge of the inclined hole with a uniform contact pressure, the edge of the inclined hole can be uniformly chamfered with an extremely simple and inexpensive structure.

請求項2の構成によれば、ホルダを弾発手段でシャンクから突出する方向に付勢するので、カッターブレードの面取り刃と傾斜孔のエッジとの接触圧を安定化し、過剰な接触圧による面取り刃の噛み込みを効果的に防止することができる。   According to the configuration of claim 2, since the holder is urged by the resilient means in a direction protruding from the shank, the contact pressure between the chamfering blade of the cutter blade and the edge of the inclined hole is stabilized, and the chamfering due to excessive contact pressure is achieved. The biting of the blade can be effectively prevented.

以下、本発明の実施の形態を、添付の図面に示した本発明の実施例に基づいて説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on examples of the present invention shown in the accompanying drawings.

図1〜図4は本発明の一実施例を示すもので、図1は面取り工具の正面図、図2は図1の2−2線断面図、図3は図1の3−3線断面図、図4は面取り加工時の作用説明図である。   1 to 4 show an embodiment of the present invention, FIG. 1 is a front view of a chamfering tool, FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, and FIG. 3 is a sectional view taken along line 3-3 in FIG. FIG. 4 and FIG. 4 are diagrams for explaining the operation during chamfering.

図1〜図3に示すように、面取り工具Tは、加工機のチャック11に把持されるシャンク12と、シャンク12の下端に一体に設けられたダンパ13と、ダンパ13に軸線Lt方向に移動自在に支持されたホルダ14と、ホルダ14の下端に揺動自在に支持されたカッターブレード15とで構成される。   As shown in FIGS. 1 to 3, the chamfering tool T is moved to the shank 12 held by the chuck 11 of the processing machine, the damper 13 integrally provided at the lower end of the shank 12, and the damper 13 in the direction of the axis Lt. The holder 14 is freely supported, and the cutter blade 15 is swingably supported at the lower end of the holder 14.

ダンパ13は、下端が開放したガイド孔16aを有する円筒状のダンパハウジング16と、ガイド孔16aの底部に収納されたダンパースプリング17とを備えており、ガイド孔16aに摺動自在に嵌合する円柱状のホルダ14はダンパースプリング17の弾発力で突出方向(下向き)に付勢される。ホルダ14の外周面に軸線Lt方向に形成されたガイド溝14aに、ダンパハウジング16に径方向に螺入したボルト18の先端が係合しており、これによりホルダ14はダンパハウジング16との相対回転を規制された状態で、ガイド溝14aの範囲内での軸線Lt方向の摺動を許容される。   The damper 13 includes a cylindrical damper housing 16 having a guide hole 16a having an open lower end, and a damper spring 17 housed in the bottom of the guide hole 16a, and is slidably fitted into the guide hole 16a. The cylindrical holder 14 is urged in the protruding direction (downward) by the elastic force of the damper spring 17. The front end of a bolt 18 screwed into the damper housing 16 in the radial direction is engaged with a guide groove 14 a formed in the direction of the axis Lt on the outer peripheral surface of the holder 14, whereby the holder 14 is relative to the damper housing 16. In a state where the rotation is restricted, sliding in the direction of the axis Lt within the range of the guide groove 14a is allowed.

ダンパハウジング16から突出するホルダ14の下端部に軸線Ltを含むスリット14bが形成されており、このスリット14b内に直角二等辺三角形状のカッターブレード15が、軸線Ltに直交する方向に延びるピン19を介して揺動自在に支持される。カッターブレード15の二つの等辺には面取り刃15a,15aが形成される。   A slit 14b including an axis Lt is formed at the lower end of the holder 14 projecting from the damper housing 16, and a cutter blade 15 having a right isosceles triangle shape extends in a direction perpendicular to the axis Lt in the slit 14b. Is supported so as to be able to swing through. Chamfering blades 15 a and 15 a are formed on two equal sides of the cutter blade 15.

次に、上記構成を備えた本発明の実施例の作用について説明する。   Next, the operation of the embodiment of the present invention having the above configuration will be described.

図4に示すように、ワークWには、その表面の法線Nに対して角度θだけ傾斜した傾斜孔Hが形成されており、この傾斜孔Hのエッジを本実施例の面取り工具Tで面取り加工する。その際、ワークWの傾斜孔Hの軸線Lwと、チャック11にシャンク12を把持されて回転する面取り工具Tの軸線Ltとを一致させた状態で、面取り工具TをワークWの傾斜孔Hに接近する方向に移動させる。面取り工具TがワークWに向けて移動すると、カッターブレード15の一対の面取り刃15a,15aの一方が傾斜孔Hのエッジの高い部分に当たり、カッターブレード15がピン19まわりに揺動することで、両方の面取り刃15a,15aが傾斜孔Hのエッジの2カ所に均等に押し付けられる。   As shown in FIG. 4, the workpiece W is formed with an inclined hole H inclined by an angle θ with respect to the normal line N of the surface, and the edge of the inclined hole H is chamfered by the chamfering tool T of this embodiment. Chamfer processing. At that time, the chamfering tool T is moved to the inclined hole H of the workpiece W in a state where the axis Lw of the inclined hole H of the workpiece W and the axis Lt of the chamfering tool T rotating with the shank 12 held by the chuck 11 are matched. Move in the direction of approach. When the chamfering tool T moves toward the workpiece W, one of the pair of chamfering blades 15a, 15a of the cutter blade 15 hits a high portion of the edge of the inclined hole H, and the cutter blade 15 swings around the pin 19, Both chamfering blades 15a, 15a are pressed evenly at two locations on the edge of the inclined hole H.

面取り工具Tが1回転する間にカッターブレード15がピン19まわりに1往復揺動することで、一対の面取り刃15a,15aで傾斜孔Hのエッジの全周を均一に面取りすることができる。また一対の面取り刃15a,15aが傾斜孔Hのエッジから受ける反力でホルダ14がダンパースプリング17を圧縮しながら上方に後退することで、面取り刃15a,15aが必要以上に大きな圧力で傾斜孔Hのエッジに押し付けられるのを防止し、面取り刃15a,15aのエッジへの噛み込みを防止することができる。   Since the cutter blade 15 reciprocates once around the pin 19 while the chamfering tool T makes one rotation, the entire circumference of the edge of the inclined hole H can be uniformly chamfered by the pair of chamfering blades 15a and 15a. Further, the holder 14 moves upward while compressing the damper spring 17 by the reaction force received by the pair of chamfering blades 15a and 15a from the edge of the inclined hole H, so that the chamfering blades 15a and 15a are inclined with a larger pressure than necessary. It can be prevented from being pressed against the edge of H, and the chamfering blades 15a, 15a can be prevented from biting into the edge.

しかして、ホルダ14にカッターブレード15を枢支するだけの簡単な構造で、傾斜孔Hのエッジを全周に亘って均一にかつ精度良く面取りすることができる。   Thus, the edge of the inclined hole H can be chamfered uniformly and accurately over the entire circumference with a simple structure in which the cutter blade 15 is pivotally supported on the holder 14.

以上、本発明の実施例を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。   Although the embodiments of the present invention have been described above, various design changes can be made without departing from the scope of the present invention.

例えば、本発明の面取り工具Tは、作業者が手で駆動するものでも、モータ等の駆動源で駆動するものであっても良い。   For example, the chamfering tool T of the present invention may be driven by an operator by hand or driven by a driving source such as a motor.

面取り工具の正面図Front view of chamfering tool 図1の2−2線断面図2-2 sectional view of FIG. 図1の3−3線断面図3-3 sectional view of FIG. 面取り加工時の作用説明図Action diagram for chamfering 従来の面取り工具の説明図Illustration of a conventional chamfering tool

符号の説明Explanation of symbols

H 傾斜孔
Lt 軸線
N 法線
W ワーク
12 シャンク
14 ホルダ
15 カッターブレード
15a 面取り刃
17 ダンパースプリング(弾発手段)
19 ピン
H Inclined hole Lt Axis N Normal W Work 12 Shank 14 Holder 15 Cutter blade 15a Chamfering blade 17 Damper spring (Bounce means)
19 pins

Claims (2)

ワーク(W)の表面の法線(N)に対して傾斜した方向に形成された傾斜孔(H)のエッジを面取りするための面取り工具において、
シャンク(12)と共に軸線(Lt)まわりに回転するホルダ(14)の先端に該軸線(Lt)に直交するピン(19)を介してカッターブレード(15)を揺動自在に枢支し、前記カッターブレード(15)に所定角度で交差する一対の面取り刃(15a)を形成したことを特徴とする面取り工具。
In the chamfering tool for chamfering the edge of the inclined hole (H) formed in the direction inclined with respect to the normal line (N) of the surface of the workpiece (W),
A cutter blade (15) is pivotally supported at the tip of a holder (14) rotating about an axis (Lt) together with the shank (12) via a pin (19) orthogonal to the axis (Lt), A chamfering tool comprising a pair of chamfering blades (15a) intersecting the cutter blade (15) at a predetermined angle.
前記ホルダ(14)を前記シャンク(12)から突出する方向に付勢する弾発手段(17)を設けたことを特徴とする、請求項1に記載の面取り工具。
The chamfering tool according to claim 1, further comprising a resilient means (17) for urging the holder (14) in a direction protruding from the shank (12).
JP2005362842A 2005-12-16 2005-12-16 Chamfering tool Pending JP2007160480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005362842A JP2007160480A (en) 2005-12-16 2005-12-16 Chamfering tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005362842A JP2007160480A (en) 2005-12-16 2005-12-16 Chamfering tool

Publications (1)

Publication Number Publication Date
JP2007160480A true JP2007160480A (en) 2007-06-28

Family

ID=38243949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005362842A Pending JP2007160480A (en) 2005-12-16 2005-12-16 Chamfering tool

Country Status (1)

Country Link
JP (1) JP2007160480A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012071387A (en) * 2010-09-29 2012-04-12 Kreuz:Kk Rotary tool
KR101290717B1 (en) 2012-11-28 2013-07-30 주식회사 원프렌지 High-precision chamfering tool and chamfering apparatus with the same
CN103586704A (en) * 2013-08-09 2014-02-19 浙江吉利罗佑发动机有限公司 Cylinder head camshaft oil hole chamfering device
CN106695014A (en) * 2015-07-28 2017-05-24 长城汽车股份有限公司 Self-adaption chamfering device
JP2018176303A (en) * 2017-04-05 2018-11-15 株式会社日立製作所 Cutting tool
CN113510313A (en) * 2021-07-13 2021-10-19 贵州航天电器股份有限公司 Indexable deburring cutter for inner wall cross orifices

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012071387A (en) * 2010-09-29 2012-04-12 Kreuz:Kk Rotary tool
KR101290717B1 (en) 2012-11-28 2013-07-30 주식회사 원프렌지 High-precision chamfering tool and chamfering apparatus with the same
CN103586704A (en) * 2013-08-09 2014-02-19 浙江吉利罗佑发动机有限公司 Cylinder head camshaft oil hole chamfering device
CN106695014A (en) * 2015-07-28 2017-05-24 长城汽车股份有限公司 Self-adaption chamfering device
CN106695014B (en) * 2015-07-28 2018-10-12 长城汽车股份有限公司 Adaptive facing attachment
JP2018176303A (en) * 2017-04-05 2018-11-15 株式会社日立製作所 Cutting tool
CN113510313A (en) * 2021-07-13 2021-10-19 贵州航天电器股份有限公司 Indexable deburring cutter for inner wall cross orifices

Similar Documents

Publication Publication Date Title
JP2007160480A (en) Chamfering tool
TWI413574B (en) Processing tool
CN108367379B (en) Cutting blade for tip dressing and tip dresser
US8517645B2 (en) Attachment particularly useful for milling machines to enable cutting sharp interior corners and a cutter member for use therein
KR101130496B1 (en) Multi functional cutting tool
JP2007223133A (en) Portable cutting machine
JP2003326519A (en) Cutter
JP4665440B2 (en) Machining tools
JP3843237B2 (en) Hole saw
JP2009172692A (en) Robot with deburring tool
JP2010110886A (en) Chamfering cutter which can also chamfer elongate hole
JP2007175827A (en) Drilling device for resin part, drilling robot system for resin part and drilling method for resin part
JP2007175794A (en) Chamfering tool
JP7376456B2 (en) Deburring tools and deburring methods
KR100715291B1 (en) Burr-removing device
US20030088988A1 (en) Tool guard attachment for a rotary hand tool
JP2009028824A (en) Automatic chamfering apparatus
JP2008149422A (en) Deburring device
JP4892510B2 (en) Cutting machine
JP3274512B2 (en) Cutting tools
KR20150016682A (en) Face milling cutter
JP6904548B2 (en) Cutting tool
JP6061355B2 (en) Thread trimming device
JP3136730U (en) Self-profiling chamfering device
JP4481848B2 (en) Swing drive type tool