JPS6243723Y2 - - Google Patents
Info
- Publication number
- JPS6243723Y2 JPS6243723Y2 JP1981168522U JP16852281U JPS6243723Y2 JP S6243723 Y2 JPS6243723 Y2 JP S6243723Y2 JP 1981168522 U JP1981168522 U JP 1981168522U JP 16852281 U JP16852281 U JP 16852281U JP S6243723 Y2 JPS6243723 Y2 JP S6243723Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- main
- main shaft
- main body
- grinding
- 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.)
- Expired
Links
- 238000000227 grinding Methods 0.000 claims description 79
- 238000003801 milling Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
【考案の詳細な説明】
この考案は可偏心機構と軸方向オシレート機構
とを内蔵した工作機の主軸頭に関するものであ
る。[Detailed Description of the Invention] This invention relates to a spindle head for a machine tool that incorporates an eccentric mechanism and an axial oscillation mechanism.
従来カム等の加工は、切削加工のみで仕上げ寸
法にまで加工し、焼入れした後は特に機械加工を
施こさないものが多かつたが、近年カムの需要増
と共に精度の向上、カム接触面粗度の向上が強く
要求されるようになつてきた。こういつた傾向に
伴い、カムを研削加工する為研削ヘツドを取付け
た専用機や、エアー駆動式の研削アタツチメント
が使用されている。 Traditionally, cams were processed to the finished dimensions using only cutting, and no special machining was performed after hardening, but in recent years, as demand for cams has increased, precision has improved and the cam contact surface has become rougher. There has been a strong demand for improvement in quality. With this trend, special machines equipped with grinding heads and air-driven grinding attachments are being used to grind cams.
しかしながら、研削ヘツド付専用機の場合、単
純な形状のカム又は決つた形状のカムにしか応用
できず、生産効率の点から問題があつた。又これ
ら研削ヘツド専用機には、砥石を軸方向にオシレ
ート(揺動)させる機構が組込まれておらず、仕
上げ面に研削目が発生するといつた問題点もあつ
た。又、一般に市販されているエアー駆動式の研
削アタツチメントの場合、空圧でタービンを回転
させる為、研削能力が低く、必要な砥石寸法まで
研削できない難点があり、又機構上軸方向オシレ
ートが不可能であつた。 However, in the case of a dedicated machine with a grinding head, it can only be applied to cams with a simple shape or cams with a fixed shape, and this poses a problem in terms of production efficiency. Furthermore, these dedicated grinding head machines do not have a built-in mechanism for oscillating the grinding wheel in the axial direction, which causes problems such as the formation of grinding marks on the finished surface. In addition, in the case of air-driven grinding attachments that are generally available on the market, since the turbine is rotated by air pressure, the grinding capacity is low and the grinding wheel cannot grind to the required size, and axial direction oscillation is not possible due to the mechanism. It was hot.
そこでこの考案は本体主軸に対して偏心設定可
能な機構と、軸方向オシレート機構とを持つた砥
石主軸をNCフライス盤の本体主軸に容易に取付
け、取外しができるように内蔵させ、砥石主軸を
本体主軸とは別駆動のACモータにて駆動させる
ことにより上記従来の欠点を改良除去したもので
あり、以下この考案の詳細を図面に示す実施例に
従つて説明すると次の通りである。 Therefore, our idea was to incorporate a grindstone spindle with a mechanism that can set the eccentricity relative to the main spindle and an axial oscillation mechanism into the main spindle of an NC milling machine so that it can be easily attached and removed. The above-mentioned drawbacks of the conventional device have been improved and eliminated by driving the device using an AC motor that is driven separately from the device.The details of this device will be explained below with reference to the embodiments shown in the drawings.
図面はこの考案に係る研削ヘツド本体及び研削
ヘツド本体内に保持された砥石主軸をNCフライ
ス盤の本体主軸に取付けた状態を示す断面図であ
り、図中1はNCフライス盤の主軸ヘツド、2は
主軸ヘツド1に軸受3を介して回転自在に組込ま
れた本体主軸、4は本体主軸2をギヤ5を介して
駆動させるためのDCモータである。6は本体主
軸2にボルト7によつて着脱自在に装着される研
削ヘツド本体であり、この研削ヘツド本体6のボ
ルト7と嵌合する貫通孔8はボルト7の外径より
若干大径に形成しておき、研削ヘツド本体6と本
体主軸2間に介在させたピン9を中心として研削
ヘツド本体6を微少角度旋回した状態で本体主軸
2に装着できるようにしておく。従つて研削ヘツ
ド本体6内に装着される後述する砥石主軸14の
中心を、本体主軸2の中心に対して一定内の偏心
位置関係を調整して取付けることが可能となる。
10は本体主軸2内に軸受11を介して回転自在
に挿入されたドライブシヤフト、12はドライブ
シヤフト10とフレキシブルカツプリング13に
て連結したスプラインシヤフトである。14は研
削ヘツド本体6内にボールブツシユガイド15、
ハウジング16及び軸受17を介して保持された
先端に砥石18を有する砥石主軸であり、この砥
石主軸14は軸受17によつて回転自在に保持さ
れ、又ボールブツシユガイド15によつて軸方向
にスライド自在に保持されており、軸方向にオシ
レートできるようになつている。そしてこの砥石
主軸14の上端は前述したスプラインシヤフト1
2の下端とスプライン結合しており、ドライブシ
ヤフト10をプーリ19,20及びベルト21を
介してACモータ22にて駆動することにより、
ドライブシヤフト10と連結しているスプライン
シヤフト12を介して本体主軸2とは別個に回転
駆動される。23は研削ヘツド本体6の下部に取
付けたカバー部材24と砥石主軸14の外周に位
置するハウジング16との間に圧入したスプリン
グであり、このスプリング23により、ハウジン
グ16内に回転自在に保持された砥石主軸14を
常時上方に押圧しておく。25はドライブシヤフ
ト10及びスプラインシヤフト12内を貫通し、
下端が砥石主軸14の上端面と接触しているオシ
レートバーであり、このオシレートバー25の上
端面は油圧モータ26によつて駆動される楕円カ
ムと接触しており、楕円カムの回転によつてオシ
レートバー25が上下動することにより、砥石主
軸14がスプリングの弾力に抗してオシレートす
るようになつている。尚、オシレートバー25の
外周面と、スプラインシヤフト12の内周面との
間には隙間lを形成しておき、研削ヘツド本体6
をNCフライス盤の本体主軸2に対して偏心させ
た状態で取付けることにより、砥石主軸14を本
体主軸2に対して偏心させた場合、砥石主軸14
とスプライン結合しているスプラインシヤフト1
2の内周面と、オシレートバー25の外周面とが
接触しないようにしておく。 The drawing is a cross-sectional view showing the grinding head main body and the grinding wheel spindle held in the grinding head main body according to this invention attached to the main spindle of the NC milling machine. In the figure, 1 is the main spindle head of the NC milling machine, and 2 is the main spindle. The main body shaft 4 is rotatably incorporated into the head 1 via a bearing 3, and 4 is a DC motor for driving the main body shaft 2 via a gear 5. Reference numeral 6 denotes a grinding head main body that is detachably attached to the main shaft 2 with a bolt 7, and a through hole 8 in which the bolt 7 of the grinding head main body 6 fits is formed to have a slightly larger diameter than the outer diameter of the bolt 7. Then, the grinding head main body 6 is turned at a slight angle about a pin 9 interposed between the grinding head main body 6 and the main main shaft 2 so that it can be attached to the main main shaft 2. Therefore, it is possible to adjust the center of the grindstone main shaft 14, which will be described later, to be mounted in the grinding head main body 6 so that the center of the grindstone main shaft 14 is within a certain range of eccentric position relative to the center of the main main shaft 2.
10 is a drive shaft rotatably inserted into the main shaft 2 via a bearing 11, and 12 is a spline shaft connected to the drive shaft 10 by a flexible coupling 13. 14 is a ball bush guide 15 inside the grinding head main body 6;
This is a grindstone main shaft that has a grindstone 18 at its tip, which is held through a housing 16 and a bearing 17. It is held slidably and can be oscillated in the axial direction. The upper end of this grinding wheel main shaft 14 is connected to the spline shaft 1 described above.
By driving the drive shaft 10 with an AC motor 22 via pulleys 19, 20 and a belt 21,
It is rotationally driven separately from the main body shaft 2 via a spline shaft 12 connected to a drive shaft 10 . A spring 23 is press-fitted between a cover member 24 attached to the lower part of the grinding head main body 6 and a housing 16 located on the outer periphery of the grindstone main shaft 14, and is rotatably held within the housing 16 by this spring 23. The grindstone main shaft 14 is always pressed upward. 25 passes through the drive shaft 10 and the spline shaft 12,
This is an oscillating bar whose lower end is in contact with the upper end surface of the grindstone main shaft 14, and the upper end surface of this oscillating bar 25 is in contact with an elliptical cam driven by a hydraulic motor 26. As the oscillating bar 25 moves up and down, the grindstone main shaft 14 oscillates against the elasticity of the spring. Note that a gap l is formed between the outer peripheral surface of the oscillating bar 25 and the inner peripheral surface of the spline shaft 12, and the grinding head main body 6
If the grinding wheel spindle 14 is eccentrically mounted relative to the main body spindle 2 of the NC milling machine, the grinding wheel spindle 14
Spline shaft 1 connected with spline
The inner peripheral surface of the oscillating bar 25 and the outer peripheral surface of the oscillating bar 25 should not be in contact with each other.
上記構成において、NCフライス盤の本体主軸
2に、研削ヘツド本体6を所定量偏心させた状態
で取付け、研削ヘツド本体6に保持された、先端
に砥石18を有する砥石主軸14を、本体主軸2
内に挿入されたスプラインシヤフト12にスプラ
イン結合させ、一方NCフライス盤の本体テーブ
ル(図示せず)に加工物であるカムをセツトした
後、研削加工に適した条件に設定された速度でモ
ータ4,22,26をそれぞれ駆動させると、砥
石主軸14はプーリ19,20、ベルト21、ド
ライブシヤフト10、フレキシブルカツプリング
13、スプラインシヤフト12を介してACモー
タ22によつて単独回転すると共に、砥石主軸1
4を回転自在に且つスライド自在に保持している
研削ヘツド本体6が本体主軸2に対して偏心した
状態で本体主軸2と一体に回転するため、砥石主
軸14は本体主軸2の軸心回りを遊星回転し、更
にオシレートバー25が楕円カム27の回転によ
つて上下動することにより軸方向にオシレートす
る。この状態でNCフライス盤の数値制御によつ
てカムに研削送りを与え、カムの研削加工を行え
ば、砥石主軸14の軸方向オシレートにより、研
削目の発生を防止でき、綺麗な仕上り面を得るこ
とができると同時に、数値制御によつて機械を駆
動するため、従来方法の研削加工に比較して加工
精度が向上し、且つ自動化、省力化により生産効
率が大幅に向上する。又、砥石主軸14は本体主
軸2に対して偏心させることができるため、任意
の微少切込みの設定が可能であり、更に砥石主軸
14は専用のACモータ22により駆動され、且
つ軸径が太いため、市販のエアー駆動式研削アタ
ツチメントと比較して重研削が可能である。又本
考案は数値制御装置の1軸付加機能にて、NC円
テーブル又はNCインデツクスと組合わせて同時
制御することにより、複雑な三次元形状のカム研
削を行なうことも可能である。又この考案に係る
研削ヘツド本体6及び砥石主軸14はNCフライ
ス盤の本体主軸2に簡単に取付け又は取外しがで
き、更に本体主軸2と砥石主軸14とは別駆動の
ため、砥石主軸14を保持した研削ヘツド本体6
を本体主軸2から取外すことにより、この考案に
使用するNCフライス盤を通常のNCフライス盤と
して使用することができる。又この考案は、フレ
キシブルカツプリングを利用して砥石主軸を偏心
可能としたものであり、該砥石主軸の偏心に応じ
てその駆動部を移動させる必要は全くなく、構造
が簡単であり、しかもDCモータによる駆動であ
るので回転数を自由に選択でき高速の偏心運動も
可能である。 In the above configuration, the grinding head body 6 is attached to the main body spindle 2 of the NC milling machine in a state eccentric by a predetermined amount, and the grinding wheel spindle 14 having the grindstone 18 at the tip, which is held by the grinding head body 6, is attached to the main body spindle 2.
After spline connection is made to the spline shaft 12 inserted inside the machine, and a cam, which is a workpiece, is set on the main body table (not shown) of the NC milling machine, the motor 4 is operated at a speed set to conditions suitable for grinding. 22 and 26 respectively, the grinding wheel main shaft 14 is independently rotated by the AC motor 22 via the pulleys 19 and 20, the belt 21, the drive shaft 10, the flexible coupling 13, and the spline shaft 12, and the grinding wheel main shaft 1
Since the grinding head main body 6, which rotatably and slidably holds the grinding head 4, rotates together with the main main shaft 2 in an eccentric state with respect to the main main shaft 2, the grinding wheel main shaft 14 rotates around the axis of the main main shaft 2. The oscillating bar 25 rotates planetarily, and the oscillating bar 25 moves up and down due to the rotation of the elliptical cam 27, thereby oscillating in the axial direction. In this state, if a grinding feed is given to the cam by numerical control of the NC milling machine and the cam is ground, the axial oscillation of the grindstone main shaft 14 can prevent the occurrence of grinding marks and provide a clean finished surface. At the same time, since the machine is driven by numerical control, processing accuracy is improved compared to conventional grinding methods, and production efficiency is greatly improved due to automation and labor saving. In addition, since the grinding wheel main shaft 14 can be made eccentric to the main body main shaft 2, it is possible to set an arbitrary minute depth of cut.Furthermore, the grinding wheel main shaft 14 is driven by a dedicated AC motor 22 and has a large shaft diameter. , capable of heavy-duty grinding compared to commercially available air-driven grinding attachments. Furthermore, the present invention enables cam grinding of complex three-dimensional shapes by simultaneously controlling the one-axis additional function of the numerical control device in combination with an NC rotary table or NC index. Further, the grinding head main body 6 and the grinding wheel main shaft 14 according to this invention can be easily attached to or detached from the main main shaft 2 of the NC milling machine, and furthermore, since the main main shaft 2 and the grinding wheel main shaft 14 are driven separately, the grinding wheel main shaft 14 can be held. Grinding head body 6
By removing the main shaft 2 from the main body spindle 2, the NC milling machine used in this invention can be used as a normal NC milling machine. In addition, this invention uses a flexible coupling to enable eccentricity of the grinding wheel main shaft, and there is no need to move the driving part according to the eccentricity of the grinding wheel main shaft, and the structure is simple. Since it is driven by a motor, the rotation speed can be freely selected and high-speed eccentric movement is also possible.
以上説明したようにこの考案によれば主軸ヘツ
ド1内で本体主軸2を回転させるだけで砥石主軸
14に軸方向と直交する方向の切込み送りを与え
ることができ、特に、そのための構成は本体主軸
2内ではなく、本体主軸2の下端に研削ヘツド本
体6の上端を偏心させて固定する構成であるた
め、本体主軸2に対し、研削ヘツド本体6の偏心
設定量自体を変更でき、切込量を自由に設定でき
る。即ち、本体主軸2を一定速度で回転させた場
合、砥石主軸14の切込量はその回転角度に比例
して変化するが、切込速度は変化しない。ここ
で、偏心設定量を変化させると、本体主軸2の回
転速度を一定としたままであつても、切込速度が
変化する。逆に、偏心設定量を一定として本体主
軸2の回転速度を変化させると、切込速度を変化
させ得る。この両方の性質を兼備しているのであ
つて、偏心量自体を変化させ得れば、切込量の設
定範囲を大きくできるのである。 As explained above, according to this invention, cutting feed in the direction perpendicular to the axial direction can be given to the grindstone main shaft 14 by simply rotating the main main shaft 2 within the main spindle head 1. In particular, the structure for this purpose is Since the upper end of the grinding head body 6 is eccentrically fixed to the lower end of the main body spindle 2 instead of within the main body spindle 2, the eccentricity setting amount of the grinding head main body 6 with respect to the main body spindle 2 can be changed, and the depth of cut can be changed. can be set freely. That is, when the main body spindle 2 is rotated at a constant speed, the cutting depth of the grindstone spindle 14 changes in proportion to the rotation angle, but the cutting speed does not change. Here, when the eccentricity setting amount is changed, the cutting speed changes even if the rotational speed of the main body spindle 2 remains constant. Conversely, if the rotational speed of the main body spindle 2 is changed while keeping the set eccentricity constant, the cutting speed can be changed. Since it has both of these properties, if the amount of eccentricity itself can be changed, the setting range of the depth of cut can be widened.
また、砥石主軸14を回転させつつオシレート
付与機構によつて軸方向にオシレート運動させ得
るため、一定位置で回転させるだけと異なり、研
削目が残らず高精度で平滑な仕上面が得られる。 Further, since the grindstone main shaft 14 can be rotated and oscillated in the axial direction by the oscillation applying mechanism, unlike simply rotating at a fixed position, a highly accurate and smooth finished surface can be obtained without leaving any grinding marks.
さらに、オシレート運動する部分は、単に砥石
主軸14とハウジング16とのみであり、全体を
オシレートさせるものではないので、オシレート
付与機構を小動力かつ簡単な機構で構成でき、ま
た、ハウジング16をスプリング23で上方に押
圧させたから、オシレートバー25を楕円カム等
でオシレートさせることができ、一層簡単化でき
る。 Furthermore, the parts that undergo oscillating motion are simply the grinding wheel main shaft 14 and the housing 16, and the entire body is not oscillated. Since the oscillating bar 25 is pressed upward by the oscillating cam, the oscillating bar 25 can be oscillated by an elliptical cam or the like, which further simplifies the process.
また、主軸ヘツド1に回転のみ可能に支持させ
た本体主軸2に対してその下端に研削ヘツド本体
6を固着しているにも拘らず、本体主軸2を回転
させれば砥石主軸14を偏心させ得る。これは、
本体主軸2内に回転のみ可能に支持させたドライ
ブシヤフト10と、研削ヘツド本体6内上部に回
転のみ可能に支持させたスプラインシヤフト12
とをフレキシブルカツプリング13で連結したた
めである。即ち、ドライブシヤフト10を本体主
軸2内に回転のみ可能に支持させ、かつ、スプラ
インシヤフト12を研削ヘツド本体6内上部に回
転のみ可能に支持させておくだけで上記偏心作動
が可能であり、支持構造を著しく単純化できる。 Furthermore, even though the grinding head body 6 is fixed to the lower end of the main body spindle 2 which is rotatably supported by the main spindle head 1, when the main body spindle 2 is rotated, the grinding wheel spindle 14 is eccentrically caused. obtain. this is,
A drive shaft 10 that is rotatably supported within the main body main shaft 2, and a spline shaft 12 that is rotatably supported within the upper part of the grinding head main body 6.
This is because they are connected by a flexible coupling ring 13. That is, the eccentric operation described above is possible by simply supporting the drive shaft 10 in the main shaft 2 so that it can only rotate, and by supporting the spline shaft 12 in the upper part of the grinding head main body 6 so that it can only rotate. The structure can be significantly simplified.
また、砥石主軸14の上端をスプラインシヤフ
ト12の下端にスプライン嵌合させたから、研削
ヘツド本体6内でハウジング16と共に砥石主軸
14を昇降させているにも拘らず、スプラインシ
ヤフト12を研削ヘツド本体6内上部に回転可能
に支持させているだけで、スプラインシヤフト1
2から砥石主軸14へ回転力を確実に伝達でき、
構造が非常に簡単である。 In addition, since the upper end of the grinding wheel main shaft 14 is spline-fitted to the lower end of the spline shaft 12, the spline shaft 12 is connected to the grinding head main body 6 even though the grinding wheel main shaft 14 is raised and lowered together with the housing 16 within the grinding head main body 6. Just by rotatably supporting the inner upper part, the spline shaft 1
The rotational force can be reliably transmitted from 2 to the grinding wheel main shaft 14,
The structure is very simple.
また、スプラインシヤフト12の貫通孔はオシ
レートバー25より大径としてあるため、本体主
軸2に対して研削ヘツド本体6を偏心作動させて
もオシレートバー25に曲げ力が作用せず、自由
に偏心させ得る。 Furthermore, since the through hole of the spline shaft 12 has a larger diameter than the oscillating bar 25, even if the grinding head main body 6 is operated eccentrically with respect to the main shaft 2, no bending force is applied to the oscillating bar 25, and the grinding head can freely eccentrically move. obtain.
図面はこの考案に係る研削ヘツド本体及び研削
ヘツド本体内に保持された砥石主軸をNCフライ
ス盤の本体主軸に取付けた状態を示す断面図であ
る。
2……本体主軸、6……研削ヘツド本体、9…
…ピン、10……ドライブシヤフト、12……ス
プラインシヤフト、13……フレキシブルカツプ
リング、14……砥石主軸、15……ボールブツ
シユガイド、17……軸受、18……砥石、22
……ACモータ、23……スプリング、25……
オシレートバー、26……油圧モータ、27……
楕円カム。
The drawing is a sectional view showing the grinding head main body according to this invention and the grinding wheel main shaft held within the grinding head main body attached to the main shaft of the NC milling machine. 2...Main main shaft, 6...Grinding head main body, 9...
... Pin, 10 ... Drive shaft, 12 ... Spline shaft, 13 ... Flexible coupling, 14 ... Grinding wheel main shaft, 15 ... Ball bush guide, 17 ... Bearing, 18 ... Grinding wheel, 22
...AC motor, 23...Spring, 25...
Oscillator bar, 26...Hydraulic motor, 27...
oval cam.
Claims (1)
回転可能で、かつ、軸方向へオシレート可能にし
てしかも軸方向と直交する方向へ切込送り可能に
装備された研削ヘツドであつて、主軸ヘツド1に
中空筒状の本体主軸2を回転自在に軸承させ、本
体主軸2の下端に中空筒状の研削ヘツド本体6を
偏心させ、かつ、偏心量を調整可能に取付け、上
記研削ヘツド本体6内にハウジング16をボール
ブツシユガイド15等を介して軸方向に摺動自在
で、かつ、スプリング23により常時軸方向上方
へ押圧させた状態に装着し、上記ハウジング16
内に砥石主軸14を回転自在に軸承し、また、研
削ヘツド本体6内上部にスプラインシヤフト12
を回転自在に軸承させると共に、このスプライン
シヤフト12の下部に砥石主軸14の上端をスプ
ライン嵌合させ、前記本体主軸2内にドライブシ
ヤフト10を回転自在に軸承し、かつ、ドライブ
シヤフト10の下端と前記スプラインシヤフト1
2の上端とをフレキシブルカツプリング13で連
結し、上記ドライブシヤフト10及びスプライン
シヤフト12を貫通してオシレートバー25を遊
嵌し、該オシレートバー25の下端を砥石主軸1
4の上端に当接させ、上記スプラインシヤフト1
2の貫通孔をオシレートバー25の外径より大径
となし、上記オシレートバー25の上端にオシレ
ート付与機構を連結して砥石主軸14をハウジン
グ16と共に研削ヘツド本体6内で軸方向にオシ
レート運動させ、前記ドライブシヤフト10の上
部に回転付与機構を連結して、フレキシブルカツ
プリング13及び研削ヘツド本体6内のスプライ
ンシヤフト12を介しハウジング16内の砥石主
軸14を回転させ、前記本体主軸2に回転付与機
構を介して回転を与えることにより、本体主軸2
に対して研削ヘツド本体6を介し砥石主軸14を
軸方向と直交する方向に偏心させて切込み送りを
与えるようになしたことを特徴とする工作機械の
主軸頭。 For the spindle head of machine tools such as NC milling machines,
A grinding head that is rotatable, capable of oscillating in the axial direction, and capable of feeding cuts in a direction perpendicular to the axial direction, in which a hollow cylindrical main shaft 2 is rotatably mounted on the main shaft head 1. A hollow cylindrical grinding head main body 6 is eccentrically mounted on the lower end of the main main shaft 2, and the eccentricity is adjustable. The housing 16 is slidable in the axial direction and is mounted in a state where it is constantly pressed upward in the axial direction by a spring 23.
A grinding wheel main shaft 14 is rotatably supported inside the grinding head main body 6, and a spline shaft 12 is mounted on the upper part of the grinding head main body 6.
The upper end of the grindstone main shaft 14 is spline-fitted to the lower part of the spline shaft 12, and the drive shaft 10 is rotatably supported within the main main shaft 2, and the lower end of the drive shaft 10 and The spline shaft 1
The upper end of the oscillating bar 25 is loosely fitted through the drive shaft 10 and the spline shaft 12, and the lower end of the oscillating bar 25 is connected to the grinding wheel main shaft 1.
4, and the spline shaft 1
The through hole 2 is made larger in diameter than the outer diameter of the oscillating bar 25, and an oscillating mechanism is connected to the upper end of the oscillating bar 25 to cause the grinding wheel main shaft 14 to oscillate in the axial direction within the grinding head body 6 together with the housing 16. A rotation imparting mechanism is connected to the upper part of the drive shaft 10 to rotate the grindstone main shaft 14 in the housing 16 via the flexible coupling 13 and the spline shaft 12 in the grinding head main body 6, thereby imparting rotation to the main main shaft 2. By applying rotation through the mechanism, the main shaft 2 of the main body
A main spindle head for a machine tool characterized in that a grinding wheel main spindle 14 is eccentrically moved in a direction orthogonal to the axial direction to give cutting feed through a grinding head main body 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981168522U JPS6243723Y2 (en) | 1981-11-11 | 1981-11-11 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1981168522U JPS6243723Y2 (en) | 1981-11-11 | 1981-11-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57108854U JPS57108854U (en) | 1982-07-05 |
JPS6243723Y2 true JPS6243723Y2 (en) | 1987-11-14 |
Family
ID=29960570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1981168522U Expired JPS6243723Y2 (en) | 1981-11-11 | 1981-11-11 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6243723Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3078970B2 (en) * | 1992-12-11 | 2000-08-21 | 株式会社トキワ | Deburring device |
JP6009312B2 (en) * | 2012-10-12 | 2016-10-19 | コマツNtc株式会社 | Grinder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52132495A (en) * | 1976-04-28 | 1977-11-07 | Shinsei Industries Co | Grinding head |
-
1981
- 1981-11-11 JP JP1981168522U patent/JPS6243723Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52132495A (en) * | 1976-04-28 | 1977-11-07 | Shinsei Industries Co | Grinding head |
Also Published As
Publication number | Publication date |
---|---|
JPS57108854U (en) | 1982-07-05 |
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