JP2003260610A - Internal chamfered structure of multiple shaft hole - Google Patents

Internal chamfered structure of multiple shaft hole

Info

Publication number
JP2003260610A
JP2003260610A JP2002107178A JP2002107178A JP2003260610A JP 2003260610 A JP2003260610 A JP 2003260610A JP 2002107178 A JP2002107178 A JP 2002107178A JP 2002107178 A JP2002107178 A JP 2002107178A JP 2003260610 A JP2003260610 A JP 2003260610A
Authority
JP
Japan
Prior art keywords
conical
chamfering
conical rotating
rotator
chamfered
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
JP2002107178A
Other languages
Japanese (ja)
Inventor
Masami Sato
正美 佐藤
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.)
KIMURA KK
Original Assignee
KIMURA KK
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 KIMURA KK filed Critical KIMURA KK
Priority to JP2002107178A priority Critical patent/JP2003260610A/en
Publication of JP2003260610A publication Critical patent/JP2003260610A/en
Pending legal-status Critical Current

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  • Drilling And Boring (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an internal chamfered structure of a multiple shaft hole in which a plurality of holes can be simultaneously chamfered, the structure is simple and inexpensive, a cylindrical member of small inside diameter can also be chamfered by solving problems that it takes very long to perform the chamfering for each part when a plurality of holes formed in the cylindrical member are internally chamfered, chamfering units of the number of the holes must be used if internal chamfering is simultaneously performed, the equipment cost is high and non-economical, and the inside diameter of the cylindrical member is limited due to the physical dimension of the chamfering unit to make it difficult to chamfer the holes of small inside diameter. <P>SOLUTION: By translating a second conical rotating body which is disposed orthogonal to the concentric plane and in the center of the concentric plane in the direction of the right angle with respect to a plurality of first conical rotating bodies disposed on the concentric circle, the first conical rotating bodies are pressed against the second conical rotating body to transmit the moving thrust which is converted at the right angle to the rotational force to the first conical rotating bodies. The first conical rotating bodies are moved outwardly from the center of the concentric circle while they are rotated, and the plurality of holes formed in the member by a chamfering drill fitted to the tip are simultaneously and internally chamfered. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】 【０００１】 【発明の属する技術分野】本発明は円筒形部材に貫通し
てあけられた複数の穴の内面取り構造に関するものであ
る。 【０００２】 【従来の技術】図１のような円筒形部材にあけられた複
数の穴の内面取りをする場合、図２に示す１軸の構造の
面取りユニットが使用されている。これは直角方向に回
転方向を変えた回転ホルダーに面取りドリル（３）を取
り付け、次に面取りユニット（４）を水平方向に移動さ
せ、面取りを終了した後インデックス（５）を所定の角
度に回転して、再び面取りユニット（４）を移動して面
取りを行い、加工工程を繰り返すものである。 【０００３】 【発明が解決しようとする課題】しかしながら一箇所づ
つ面取り加工をおこなうため、非常に時間がかかってい
た。このため複数の面取りユニットを配置して作業時間
の短縮を図ることが考えられるが、設備費がかかること
と、面取りユニットの物理的寸法によって制約を受け、
小径の部材（内径２００ｍｍ以下）のものは困難であっ
た。 【０００４】 【課題を解決するための手段】本発明は次のような手段
によって上記課題を解決するものである。 （１）面取りドリルを取り付けた第一の円錐状回転体を
同心円、同一平面上に複数配置する。 （２）第一の円錐状回転体は回転軸方向に平行に移動可
能とする。 （３）第二の円錐状回転体の回転軸を複数配置した第一
の円錐状回転体の同心円中であって、同一平面に直角方
向に配置する。 （４）第二の円錐状回転体は回転軸方向に平行に移動可
能とする。 以上の構造であって、第一の円錐状回転体と第二の円錐
状回転体のテーパー部分を圧接することによって第二の
円錐状回転体の回転力と推力を第一の円錐状回転体に与
える。 【０００５】 【作用】次に本発明の作用を述べると、同心円上に配置
した複数の第一の円錐状回転体に対して、同心円平面に
直角方向で同心円の中心に配置した第二の円錐状回転体
を回転しながら直角方向に移動させることにより、第一
の円錐状回転体と第二の円錐状回転体の互いの円錐テー
パー部が圧接するから第一の円錐状回転体には回転力が
伝達されるとともに、第二の円錐状回転体の移動方向が
直角に変換される。したがって、第二の円錐状回転体の
回転力、移動推力が複数の第一の円錐状回転体に比例・
等分して与えられるため多軸穴の内面取りが可能となる
ものである。 【０００６】 【実施例】以下、本発明の実施例について説明する。図
３に示すように、面取りドリル（３）を第一の円錐状回
転体（６）に取り付け、これをベアリング（８）を取り
付けたホルダー（９）に挿入する。 【０００７】受け台（１３）にストッパー（１１）とバ
ネ（１０）、およびリニアレール部（１２）を取り付
け、リニアレール部（１２）にホルダー（９）とバネ
（１０）を勘合させて取り付ける。次に、受け台（１
３）を基台（１４）に取り付ける。 【０００８】バネ（１０）は第一の円錐状回転体（６）
と第二の円錐状回転体（７）の円錐部テーパーが隙間な
く圧接する条件を作り出すためのバネ定数に選定する。
一例として、２〜３Ｋｇｆのバネ圧が利用される。ま
た、ストッパー（１１）は面取りの深さが最適になるよ
う出入り長さを調整、固定する。 【０００９】次に、ブラケット（１７）にベアリング
（１６）、モーター（１８）を取り付け、シャフト（１
５）を嵌め合わせ取り付ける。シャフト（１５）の先端
に第二の円錐状回転体（７）を取り付ける。第二の円錐
状回転体（７）は第一の円錐回転体（６）との円錐部テ
ーパーの摩擦力を高めるため、樹脂で作られることが望
ましく、材質としてはゴム、ウレタン、ニトリル系など
を使用する。第一の円錐状回転体（６）は金属製、樹脂
製のいずれでもよい。 【００１０】さらに、イケールベース（２１）にリニア
レール部（２０）を固定し、これに移動ベース（１９）
を取り付ける。また、移動ベース（１９）に移動手段
（２２）を連結するとともに、イケールベース（２１）
に固定する。次に、ブラケット（１７）を移動ベース
（１９）に固定する。移動手段（２２）は駆動源とし
て、エアシリンダー、油圧シリンダー、もしくはモータ
ーを使用してもよい。図６に本実施例における第一の円
錐状回転体（６）を六等分に配置した状態を示す。この
例では円筒形部材の内径が１００ｍｍ、穴の直径が２．
５ｍｍである。 【００１１】第一の円錐状回転体（６）の円錐テーパー
角度をＡ、第二の円錐回転体（７）の円錐テーパー角度
をＢとすると、 Ａ＋Ｂ＝９０° ３０°＜Ａ＜６０° ３０°
＜Ｂ＜６０° の関係にすることが望ましい。 【００１２】次に動作について説明する。図３に示すよ
うに、モーター（１８）を起動すると第二の円錐状回転
体（７）が回転する。第一の円錐状回転体（６）はバネ
（１０）によって中心方向へ押し付けられているので、
第二の円錐状回転体（７）と圧接して回転力が伝えら
れ、回転する。次に、移動手段（２２）によって移動ベ
ースを下げると第二の円錐状回転体（７）が下降するか
ら第一の円錐状回転体（６）は直角方向への移動力を受
け、回転しながら中心から外側へ移動する。この様子を
図４、図５に示す。さらに移動すると穴（２）に当たり
加工を始め、あらかじめ調整されたストッパー（１１）
にホルダー（９）が当接するまで移動して加工する。次
に、移動手段（２２）を後退させるとバネ（１０）の作
用によって第一の円錐状回転体は中心方向へ移動して加
工工程が終了する。 【００１３】 【発明の効果】以上のように、本発明によれば次のよう
な効果がある。 （１）複数穴の内面取りが同時に短時間でできる。 （２）構造が簡単であるから設備費用が安く、経済的で
ある。 （３）内径の小さい部材にも対応できるので、利用範囲
が広い。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner chamfering structure for a plurality of holes penetrating a cylindrical member. 2. Description of the Related Art In the case of chamfering a plurality of holes formed in a cylindrical member as shown in FIG. 1, a chamfer unit having a uniaxial structure shown in FIG. 2 is used. In this method, the chamfering drill (3) is attached to a rotating holder whose direction of rotation is changed at right angles, then the chamfering unit (4) is moved in the horizontal direction, and after the chamfering is completed, the index (5) is rotated to a predetermined angle. Then, the chamfering unit (4) is moved again to perform chamfering, and the machining process is repeated. However, since chamfering is performed one by one, it takes a very long time. For this reason, it is conceivable to arrange a plurality of chamfer units to shorten the work time, but it is restricted by the equipment cost and the physical dimensions of the chamfer unit,
A member with a small diameter (200 mm or less in inner diameter) was difficult. [0004] The present invention is to solve the above-mentioned problems by the following means. (1) A plurality of first conical rotating bodies to which a chamfer drill is attached are arranged concentrically and on the same plane. (2) The first conical rotator can be moved in parallel to the direction of the rotation axis. (3) A plurality of rotation axes of the second conical rotator are arranged in a concentric circle of the first conical rotator, and are arranged at right angles to the same plane. (4) The second conical rotator can be moved in parallel with the rotation axis direction. With the above structure, the rotational force and thrust of the second conical rotator are brought into contact with the tapered portion of the first conical rotator and the second conical rotator to press the first conical rotator with the first conical rotator. Give to. Next, the operation of the present invention will be described. With respect to a plurality of first conical rotating bodies arranged on a concentric circle, a second cone arranged at the center of the concentric circle in a direction perpendicular to the concentric plane. The first conical rotator and the second conical rotator are pressed against each other by pressing the first conical rotator and the second conical rotator in a right angle direction while rotating the rotator so that the first conical rotator is rotated. As the force is transmitted, the moving direction of the second conical rotator is changed to a right angle. Therefore, the rotational force and moving thrust of the second conical rotator are proportional to the plurality of first conical rotators.
Since it is given in equal parts, the inner chamfering of the multiaxial hole becomes possible. An embodiment of the present invention will be described below. As shown in FIG. 3, the chamfer drill (3) is mounted on the first conical rotator (6) and inserted into the holder (9) on which the bearing (8) is mounted. A stopper (11), a spring (10), and a linear rail portion (12) are attached to the cradle (13), and the holder (9) and the spring (10) are fitted to the linear rail portion (12). . Next, the cradle (1
3) is attached to the base (14). The spring (10) is a first conical rotating body (6).
And the conical taper of the second conical rotating body (7) are selected as a spring constant for creating a condition in which they are pressed against each other without any gap.
As an example, a spring pressure of 2-3 kgf is used. In addition, the stopper (11) adjusts and locks in and out length so that the chamfering depth is optimized. Next, the bearing (16) and the motor (18) are attached to the bracket (17), and the shaft (1) is mounted.
5) Fit and attach. A second conical rotator (7) is attached to the tip of the shaft (15). The second conical rotator (7) is desirably made of resin in order to increase the frictional force of the conical taper with the first conical rotator (6), and is preferably made of rubber, urethane, nitrile, or the like. Use The first conical rotator (6) may be made of metal or resin. Further, the linear rail portion (20) is fixed to the scale base (21), and the movable base (19) is fixed to the linear rail portion (20).
Attach. The moving means (22) is connected to the moving base (19), and the moving base (21) is connected to the moving means (22).
Fixed to. Next, the bracket (17) is fixed to the movable base (19). The moving means (22) may use an air cylinder, a hydraulic cylinder, or a motor as a driving source. FIG. 6 shows a state in which the first conical rotator (6) in this embodiment is arranged in six equal parts. In this example, the inner diameter of the cylindrical member is 100 mm, and the diameter of the hole is 2.
5 mm. If the conical taper angle of the first conical rotator (6) is A and the conical taper angle of the second conical rotator (7) is B, A + B = 90 ° 30 ° <A <60 ° 30 °
It is desirable to satisfy the relationship of <B <60 °. Next, the operation will be described. As shown in FIG. 3, when the motor (18) is started, the second conical rotator (7) rotates. Since the first conical rotating body (6) is pressed toward the center by the spring (10),
The rotating force is transmitted by being pressed against the second conical rotator (7) to rotate. Next, when the moving base is lowered by the moving means (22), the second conical rotator (7) is lowered, so that the first conical rotator (6) receives a moving force in a right angle direction and rotates. While moving from the center to the outside. This situation is shown in FIGS. When it moves further, it hits the hole (2) and starts processing, and the stopper (11) adjusted in advance
The workpiece is moved until the holder (9) comes into contact with it. Next, when the moving means (22) is retracted, the first conical rotating body moves toward the center by the action of the spring (10), and the machining process is completed. As described above, according to the present invention, the following effects can be obtained. (1) Internal chamfering of a plurality of holes can be simultaneously performed in a short time. (2) Since the structure is simple, equipment costs are low and economical. (3) Since it can be used for a member having a small inner diameter, the range of use is wide.

【図面の簡単な説明】 【図１】 円筒形部材の一例を示した斜視図である。 【図２】 従来の構造例による面取りの側面図である。 【図３】 本発明の実施例を示す側面図である。 【図４】 本発明の定常静止状態を示す部分断面図であ
る。 【図５】 本発明の面取り加工状態を示す部分断面図で
ある。 【図６】 本発明において第一の円錐状回転体を六等分
に配置した上視断面図である。 【符号の説明】 １ 円筒形部材 ２ 円筒形部材の貫通穴 ３ 面取りドリル ４ 従来例の面取りユニット ５ 従来例のインデックステーブル ６ 第一の円錐状回転体 ７ 第二の円錐状回転体 ８ ベアリング ９ ホルダー １０ バネ １１ ストッパー １２ リニアレール部 １３ 受け台 １４ 基台 １５ ベアリング １６ シャフト １７ ブラケット １８ モーター １９ 移動ベース ２０ リニアレール ２１ イケールベース ２２ 駆動手段BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an example of a cylindrical member. FIG. 2 is a side view of a chamfer according to a conventional structure example. FIG. 3 is a side view showing an embodiment of the present invention. FIG. 4 is a partial cross-sectional view showing a stationary state of the present invention. FIG. 5 is a partial sectional view showing a chamfering state according to the present invention. FIG. 6 is a cross-sectional view of the present invention in which the first conical rotating body is arranged into six equal parts. [Description of Signs] 1 Cylindrical member 2 Through-hole of cylindrical member 3 Chamfering drill 4 Conventional chamfering unit 5 Conventional index table 6 First conical rotating body 7 Second conical rotating body 8 Bearing 9 Holder 10 Spring 11 Stopper 12 Linear rail part 13 Receiving stand 14 Base 15 Bearing 16 Shaft 17 Bracket 18 Motor 19 Moving base 20 Linear rail 21 Ikele base 22 Drive means

Claims (1)

【特許請求の範囲】 【請求項１】（１）面取りドリルを取り付けた第一の円
錐状回転体を同心円、同一平面上に複数配置する。 （２）第一の円錐状回転体は回転軸方向に平行に移動可
能とする。 （３）第二の円錐状回転体の回転軸を複数配置した第一
の円錐状回転体の同心円中心であって、同一平面に直角
方向に配置する。 （４）第二の円錐状回転体は回転軸方向に平行に移動可
能とする。 （５）第二の円錐状回転体を回転しながら回転軸方向に
平行に移動することによって、それぞれの第一の円錐状
回転体に圧接させ、第一の円錐上回転体に回転力と直角
方向への移動推力を与えることを特徴とする多軸穴の内
面取り構造。Claims: (1) A plurality of first conical rotating bodies to which a chamfering drill is attached are arranged concentrically and on the same plane. (2) The first conical rotator can be moved in parallel to the direction of the rotation axis. (3) The first conical rotator in which a plurality of rotation axes of the second conical rotator are arranged is the concentric center of the first conical rotator, and is arranged at right angles to the same plane. (4) The second conical rotator can be moved in parallel with the rotation axis direction. (5) By moving the second conical rotator parallel to the rotation axis direction while rotating, the second conical rotator is brought into pressure contact with each first conical rotator, and the first conical rotator is perpendicular to the rotational force. An internal chamfered structure for multi-axial holes, which provides a thrust in the direction of movement.
JP2002107178A 2002-03-04 2002-03-04 Internal chamfered structure of multiple shaft hole Pending JP2003260610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002107178A JP2003260610A (en) 2002-03-04 2002-03-04 Internal chamfered structure of multiple shaft hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002107178A JP2003260610A (en) 2002-03-04 2002-03-04 Internal chamfered structure of multiple shaft hole

Publications (1)

Publication Number Publication Date
JP2003260610A true JP2003260610A (en) 2003-09-16

Family

ID=28672462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002107178A Pending JP2003260610A (en) 2002-03-04 2002-03-04 Internal chamfered structure of multiple shaft hole

Country Status (1)

Country Link
JP (1) JP2003260610A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105149650A (en) * 2015-09-29 2015-12-16 沈阳中北通磁科技股份有限公司 Drilling method for neodymium iron boron rare-earth permanent magnet precise device and vertical drilling device
CN110280800A (en) * 2019-07-16 2019-09-27 海盐海马五金有限公司 A kind of nut end Hole chamfering machine
CN113319591A (en) * 2021-07-14 2021-08-31 杭州集智机电股份有限公司 Self-adaptive chamfering mechanism for dynamic balance equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105149650A (en) * 2015-09-29 2015-12-16 沈阳中北通磁科技股份有限公司 Drilling method for neodymium iron boron rare-earth permanent magnet precise device and vertical drilling device
CN105149650B (en) * 2015-09-29 2017-08-25 沈阳中北通磁科技股份有限公司 A kind of boring method and Verticle boring apptss of Nd-Fe-B rare-earth permanent magnet accurate device
CN110280800A (en) * 2019-07-16 2019-09-27 海盐海马五金有限公司 A kind of nut end Hole chamfering machine
CN113319591A (en) * 2021-07-14 2021-08-31 杭州集智机电股份有限公司 Self-adaptive chamfering mechanism for dynamic balance equipment
CN113319591B (en) * 2021-07-14 2024-05-28 杭州集智机电股份有限公司 Self-adaptive chamfering mechanism for dynamic balance equipment

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