JPS61173807A - Grooving attachment - Google Patents

Grooving attachment

Info

Publication number
JPS61173807A
JPS61173807A JP1408185A JP1408185A JPS61173807A JP S61173807 A JPS61173807 A JP S61173807A JP 1408185 A JP1408185 A JP 1408185A JP 1408185 A JP1408185 A JP 1408185A JP S61173807 A JPS61173807 A JP S61173807A
Authority
JP
Japan
Prior art keywords
cutter
drive pin
grooving
inclined cam
holder
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
JP1408185A
Other languages
Japanese (ja)
Inventor
Yoshikuni Sasaki
佐々木　義邦
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP1408185A priority Critical patent/JPS61173807A/en
Publication of JPS61173807A publication Critical patent/JPS61173807A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03—Boring heads
    • B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03432—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing
    • B23B29/03489—Adjustment means not specified or not covered by the groups B23B29/03435 - B23B29/03478
    • B23B29/03496—Grooving tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
    • B23B5/40—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes for turning spherical surfaces inside or outside

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

PURPOSE:To obtain a general purpose grooving machine capable of attaching a drive pin as an attachment by rotating the drive pin through the rotation of the rotatary shaft fitted to the main spindle of a machine tool and grooving the inner periphery of a workpiece by the swing of the cutter in contact with the inclined cam face at the end of the pin. CONSTITUTION:A cutter 18 is set at a specified position in the hole of a workpiece W, and a rotary shaft and a drive pin 8 are rotated through the rotation of a main spindle. At this time, because the cutter 18 is in contact with an inclined cam face 10, being rotated at a low speed toward A, the drive pin 8 is rotated at 180 deg. to swing the cutter 18 to P2 resulting in the grooving of an arc groove S, and the vertical movement of the drive pin 8 is absorbed by coil spring. If the drive pin 8 is further rotated, the cutter 18 is swung again from P2 to P1, and since a follower pin 12 is brought into contact with a cylindrical cam section 11 here, the whole cutter holder 6 slides by a distance corresponding to clearance C toward B1 and also the cutter 18 steps aside the groove S by a constant distance. Thus, such a simple mechanism allows the machine to perform a specified grooving in general use.

Description

【発明の詳細な説明】 産業上の利用分野 この発明は、中空円筒状のワークの内周面に対してその
軸方向に沿って溝加工を施すアタッチメントに関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an attachment for forming grooves on the inner peripheral surface of a hollow cylindrical workpiece along its axial direction.

従来の技術 例えばパワーステアリング装置のバルブボディのように
中空円筒状のワークの内周面に対して溝加工を施す装置
としては、例えば特公昭５７−５７２０４号公報、特開
昭５９−１１５１１２号公報および特開昭５９−１１５
１１３号公報に示される装置がある。そして、これらの
公報に示された装置は〜・ずれもバイトを用いたスロッ
タ形の機械であり、カムによりバイトの軌跡を制御して
いる。BACKGROUND OF THE INVENTION Apparatuses for grooving the inner peripheral surface of a hollow cylindrical workpiece, such as a valve body of a power steering device, are disclosed in, for example, Japanese Patent Publication No. 57-57204 and Japanese Patent Application Laid-Open No. 59-115112. and JP-A-59-115
There is a device shown in Japanese Patent No. 113. The devices disclosed in these publications are slotter-type machines that use a cutting tool, and the trajectory of the cutting tool is controlled by a cam.

また、上記の装置に代えて、第６図に示すようにエンド
ミルＥｍ’に用いてワークＷに対して溝Ｓの加工を施す
ことも一部において行なわれている。Furthermore, instead of the above-mentioned apparatus, as shown in FIG. 6, an end mill Em' is used to machine the groove S in the workpiece W in some cases.

発明が解決しようとする問題点 上記の各公報に示された装置の場合には構造がきわめて
複雑であるばかりでなく、溝加工だけを対象とした専用
機とならざるを得す、しかもワーク形状が変わるとそれ
に合わせてカム等を変更する為、専用機本体を分解して
改造しなければならない。また第６図に示したようにエ
ンドミルＥｍを用いた場合には、ワークの形状や加工す
べき溝の形状が著しく制約されてしまうとい５問題があ
る。Problems to be Solved by the Invention In the case of the devices shown in the above publications, not only are the structures extremely complicated, but they must also be specialized machines for groove machining only, and the workpiece shape When the cam changes, the cam etc. must be changed accordingly, which requires disassembling and modifying the dedicated machine itself. Further, when the end mill Em is used as shown in FIG. 6, there are five problems in that the shape of the workpiece and the shape of the groove to be machined are severely restricted.

本発明は上記のような従来の種々の装置に代わり、例え
ばマシニングセンタなどの汎用性のある工作機械にアタ
ッチメントとして装着することによって所定の溝加工を
行なえる構造を提供しようとするものでるる。The present invention aims to provide a structure that can be installed as an attachment on a versatile machine tool such as a machining center to perform predetermined groove machining, instead of the various conventional devices as described above.

問題点を解決する丸めの手段 本発明の溝加工用アタッチメントは、ホルダーに回転可
能に軸支され、工作機械の主軸により回転駆動される回
転軸と、この回転軸に対し軸方向に移動可能に連結され
たドライブピンと、このドライブピンの先端に形成され
た傾斜カム面と、ホルダーに取り付けられてたカッター
ホルダーと、カッターホルダーの先端に軸支されるとと
もに前記傾斜カム面に接触し、ドライブピンが回転する
ことにより傾斜カム面の変位量に応じてドライブピンの
軸心と直交する軸心回りを揺動するカッターとから構成
される。そして、回転軸を例えばマシニングセンタの主
軸に嵌合させる一方、ホルダーはマシニングセンタの非
回転部分に固定するものとする。Rounding Means to Solve Problems The groove machining attachment of the present invention has a rotary shaft that is rotatably supported by a holder and rotationally driven by the main shaft of a machine tool, and is movable in the axial direction with respect to the rotary shaft. A connected drive pin, an inclined cam surface formed at the tip of the drive pin, a cutter holder attached to the holder, and a drive pin that is pivotally supported by the tip of the cutter holder and in contact with the inclined cam surface. and a cutter that swings about an axis perpendicular to the axis of the drive pin in accordance with the amount of displacement of the inclined cam surface. The rotating shaft is fitted to, for example, the main shaft of a machining center, while the holder is fixed to a non-rotating portion of the machining center.

作用 以上の構成から明らかなように、ドライブピンが回転運
動をすれば、このドライブピンの先端の傾斜カム面に接
しているカッターが揺動し、それによってワークの内周
面には弧状の溝が形成されることになる。Function As is clear from the above configuration, when the drive pin rotates, the cutter in contact with the inclined cam surface at the tip of the drive pin swings, thereby creating an arcuate groove on the inner peripheral surface of the workpiece. will be formed.

実施例 第１図は本発明の一実施例を示す図で、第４図および第
５図に示すような中空円筒状のワークＷの内周面に溝Ｓ
、Ｓ・・・を切Ｒｕ加工するアタッチメントについて示
している。Embodiment FIG. 1 shows an embodiment of the present invention, in which a groove S is formed on the inner peripheral surface of a hollow cylindrical workpiece W as shown in FIGS. 4 and 5.
, S... is shown for an attachment for cutting and Ru processing.

第１図において、１は回り止め部材２が一体に形成され
た筒状のホルダー、３はホルダーＩＫベアリング４を介
して回転可能に支持された回転軸であり、回転軸３はマ
シニングセンタ等の主軸Ｑに嵌合される一方、回り止め
部材２は同じく工作機械の非回転部分に嵌合もしくは当
接してホルダー１の回転を阻止する。In FIG. 1, 1 is a cylindrical holder integrally formed with a rotation prevention member 2, 3 is a rotating shaft rotatably supported via a holder IK bearing 4, and the rotating shaft 3 is a main shaft of a machining center, etc. On the other hand, the anti-rotation member 2 also fits or abuts on a non-rotating part of the machine tool to prevent rotation of the holder 1.

ホルダー１の下端にはスライドベース５が固定されてお
り、このスライドベース５に対してカッターホルダー６
があり溝７保合により装着されている。したがって、カ
ッターホルダー６は回転軸３の軸心と直交する方向、つ
まり第２図の矢印Ｂ１゜Ｂ２方向にスライド可能となっ
ている。A slide base 5 is fixed to the lower end of the holder 1, and a cutter holder 6 is attached to the slide base 5.
It is installed by groove 7. Therefore, the cutter holder 6 is slidable in a direction perpendicular to the axis of the rotating shaft 3, that is, in the direction of arrows B1 and B2 in FIG.

回転軸３はその子牛部が中空状に形成されており、この
回転軸３の内筒部に対してドライブピン８がスライド可
能にスプライン結合されている。The rotary shaft 3 has a hollow calf, and a drive pin 8 is slidably splined to the inner cylindrical portion of the rotary shaft 3.

尚、回転軸３側のスプラインを符号３ａで、ドライブピ
ン８側のスプラインを符号８ａで示す。そして、ドライ
ブピン８はコイルばね９により下方に向けて付勢されて
いる。Incidentally, the spline on the rotating shaft 3 side is indicated by the reference numeral 3a, and the spline on the drive pin 8 side is indicated by the reference numeral 8a. The drive pin 8 is urged downward by a coil spring 9.

ドライブピン８はスライドベース５を貫通してカッター
ホルダー６の内部まで伸長しており、その先端には８２
図にも示すように円柱を斜めに切除してなる傾斜カム面
１０が形成されている＋１か、傾斜カム面１０の上方に
は第３図にも示すように円筒カム部１１が形成されてい
る。そして、前述したカッターホルダー６に螺合した７
オロアビン１２の先端がドライブピン８の外周に接触し
、しかもカッターホルダ−６自体がコイルばね１３によ
り矢印Ｂｔ力方向付勢されていることから、ドライブピ
ン８が回転することにより円筒カム部１１の変位量に応
じてカッターホルダー６が矢印Ｂ１゜Ｂ２方向に往復動
することになる。The drive pin 8 extends through the slide base 5 to the inside of the cutter holder 6, and has an 82
As shown in the figure, an inclined cam surface 10 is formed by obliquely cutting a cylinder, or a cylindrical cam part 11 is formed above the inclined cam surface 10, as shown in FIG. There is. 7 screwed into the cutter holder 6 described above.
Since the tip of the oroabin 12 contacts the outer periphery of the drive pin 8 and the cutter holder 6 itself is biased in the direction of the force indicated by the arrow Bt by the coil spring 13, the rotation of the drive pin 8 causes the cylindrical cam portion 11 to rotate. The cutter holder 6 reciprocates in the directions of arrows B1 and B2 in accordance with the amount of displacement.

尚、１４はコイルばね１３を支持しているパックプレー
ト、１５はドライブピン８ｔ−支持している軸受である
。Note that 14 is a pack plate that supports the coil spring 13, and 15 is a bearing that supports the drive pin 8t.

カッターホルダー６の先端にはホルダープレート１６が
取り付けられており、これらカッターホルダー６とホル
ダープレート１６とによりビン１７を介してカッター１
８が回転可能に支持されている。そして、カッター１８
の上平面がドライブピン８の傾斜カム面１０と接触して
〜・ることがら、ドライブピン８が回転することにより
ドライブピン８の軸心と直交するビン１７回りをカッタ
ー１８が揺動（回転）することになる。A holder plate 16 is attached to the tip of the cutter holder 6, and the cutter holder 6 and the holder plate 16 allow the cutter 1 to move through the bin 17.
8 is rotatably supported. And cutter 18
Since the upper plane contacts the inclined cam surface 10 of the drive pin 8, the cutter 18 swings (rotates) around the bin 17 perpendicular to the axis of the drive pin 8 as the drive pin 8 rotates. ) will be done.

以上のように構成されたアタッチメントは次のように作
用する。The attachment configured as described above operates as follows.

第１図においてワークＷが固定されているものとすると
、マシニングセンタ等の工作機械そのもののｘ、ｙ、ｚ
方向の動きを利用してカッター１８をワークＷ内の所定
位置にセットする。そして、主軸Ｑを回転駆動すること
により回転軸３およびドライブピン８が回転する。Assuming that the work W is fixed in Fig. 1, the x, y, and z of the machine tool itself such as a machining center
The cutter 18 is set at a predetermined position within the workpiece W using the directional movement. Then, by rotationally driving the main shaft Q, the rotating shaft 3 and the drive pin 8 are rotated.

今仮りに纂２図および第３図の状態からドライブピン８
が矢印人方同に比較的低速で回転するものとすると、傾
斜カム面１０にカッター１８が接触していることから、
ドライブピン８が１８０度回転するとカッター１８は鵠
２図に二点鎖線で示す位置Ｐ２まで揺動じ、これによっ
て弧状の溝Ｓの切削加工が行なわれる。この時のドライ
ブピン８の上下方向の動きはコイルばね９により吸収さ
れる。Now let's temporarily remove the drive pin 8 from the state shown in Figures 2 and 3.
Assuming that the arrow rotates at a relatively low speed in the same direction as the arrow, since the cutter 18 is in contact with the inclined cam surface 10,
When the drive pin 8 rotates 180 degrees, the cutter 18 swings to a position P2 shown by a two-dot chain line in Figure 2, thereby cutting an arcuate groove S. The vertical movement of the drive pin 8 at this time is absorbed by the coil spring 9.

さらにドライブピン８が１ｇ１転すると、カッター１８
は二点鎖線で示す位置Ｐ２から実線で示す位置Ｐ１に向
かって再び揺動しはじめる。この時、第３図に示すよう
に７オロアピン１２が円筒カム部１１に当接することに
なる丸め、クリアランスＣに相当する量だけカッターホ
ルダ−６全体が矢印Ｂ１方向くスライドする。つまりカ
ッター１８の戻り動作時には該カッター１８が先に切削
した溝Ｓから一定量だけ逃げることになる。そして、ド
ライブピン８が３６０度回転するとカッター１８は第２
図に実線で示す元の位置Ｐｔに復帰することになる。Furthermore, when the drive pin 8 turns 1g, the cutter 18
begins to swing again from position P2 shown by the two-dot chain line toward position P1 shown by the solid line. At this time, as shown in FIG. 3, the entire cutter holder 6 slides in the direction of arrow B1 by an amount corresponding to the rounding clearance C where the lower pin 12 comes into contact with the cylindrical cam portion 11. In other words, when the cutter 18 returns, the cutter 18 escapes from the previously cut groove S by a certain amount. Then, when the drive pin 8 rotates 360 degrees, the cutter 18 moves to the second position.
It will return to the original position Pt shown by the solid line in the figure.

したがって、上記のようなカッター１８の揺動運動とあ
わせてワークＷを割り出し回転させれば第４図および第
５図に示すような複数の溝Ｓ、Ｓ・・・を備えたワーク
Ｗが得られる。Therefore, if the workpiece W is indexed and rotated in conjunction with the swinging motion of the cutter 18 as described above, a workpiece W having a plurality of grooves S, S, etc. as shown in FIGS. 4 and 5 can be obtained. It will be done.

ま九、工作機械の主軸への送りの与え方によって弧状以
外の形状の溝加工も行なうことができる。Also, depending on how the feed is applied to the main spindle of the machine tool, it is possible to machine grooves in shapes other than arcuate shapes.

発明の効果 以上のように本発明によれば、構造が複雑な専用機を用
いることなく、マシニングセンタその他の汎用性のある
工作機械に装着することによって所定の溝加工を簡単に
行なえる。Effects of the Invention As described above, according to the present invention, a predetermined groove machining can be easily performed by attaching the machine to a machining center or other general-purpose machine tool without using a specialized machine with a complicated structure.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例を示す断面図、第２図は第１
図の五−■線に沿う断面図、第３図は第２図の■−■線
に沿５断面図、第４図はワークの断面図、第５図は第４
図のＶ−ＶｌｉＫ？９う断面図、第６図は従来の溝加工
の一例を示す説明図である。 １・・・ホルダー、３・・・回転軸、６・・・カッター
ホルダー、８・・・ドライブピン、１０・・・傾斜カム
面、１７・・・ピン、１８・・・カッター、Ｑ・・・主
軸、Ｗ・・・ワーク、Ｓ・・・溝。FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
Figure 3 is a sectional view taken along line 5--■ in Figure 2, Figure 4 is a sectional view of the workpiece, and Figure 5 is a sectional view taken along line 5--■ in Figure 2.
V-VliK? 9 and FIG. 6 are explanatory diagrams showing an example of conventional groove machining. DESCRIPTION OF SYMBOLS 1... Holder, 3... Rotating shaft, 6... Cutter holder, 8... Drive pin, 10... Inclined cam surface, 17... Pin, 18... Cutter, Q...・Spindle, W...workpiece, S...groove.

Claims (1)

【特許請求の範囲】[Claims] （１）所定の工作機械に装着されて、中空円筒状のワー
クの内周面に対してその軸方向に沿つて溝加工を施すア
タッチメントであつて、ホルダーに回転可能に軸支され
、工作機械の主軸により回転駆動される回転軸と、この
回転軸に対し軸方向に移動可能に連結されたドライブピ
ンと、このドライブピンの先端に形成された傾斜カム面
と、ホルダーに取り付けられたカッターホルダーと、こ
のカッターホルダーの先端に軸支されるとともに前記傾
斜カム面に接触し、ドライブピンが回転することにより
傾斜カム面の変位量に応じてドライブピンの軸心と直交
する軸心回りを揺動するカッターとから構成されたこと
を特徴とする溝加工用アタッチメント。(1) An attachment that is attached to a specified machine tool and grooves the inner peripheral surface of a hollow cylindrical workpiece along its axial direction. A rotating shaft rotationally driven by a main shaft, a drive pin connected to the rotating shaft so as to be movable in the axial direction, an inclined cam surface formed at the tip of the drive pin, and a cutter holder attached to the holder. , which is pivotally supported by the tip of this cutter holder and comes into contact with the inclined cam surface, and as the drive pin rotates, it swings around an axis perpendicular to the axis of the drive pin in accordance with the amount of displacement of the inclined cam surface. A grooving attachment characterized by comprising a cutter and a cutter.
JP1408185A 1985-01-28 1985-01-28 Grooving attachment Pending JPS61173807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1408185A JPS61173807A (en) 1985-01-28 1985-01-28 Grooving attachment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1408185A JPS61173807A (en) 1985-01-28 1985-01-28 Grooving attachment

Publications (1)

Publication Number Publication Date
JPS61173807A true JPS61173807A (en) 1986-08-05

Family

ID=11851152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1408185A Pending JPS61173807A (en) 1985-01-28 1985-01-28 Grooving attachment

Country Status (1)

Country Link
JP (1) JPS61173807A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390408A (en) * 1991-04-12 1995-02-21 A.E. Bishop & Associates Pty. Limited Slotting
CN102029411A (en) * 2010-12-22 2011-04-27 广元瑞峰精工机械制造有限公司 Deep-hole boring cutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390408A (en) * 1991-04-12 1995-02-21 A.E. Bishop & Associates Pty. Limited Slotting
CN102029411A (en) * 2010-12-22 2011-04-27 广元瑞峰精工机械制造有限公司 Deep-hole boring cutter

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