JPH0637028B2 - Method and apparatus for processing twist work - Google Patents
Method and apparatus for processing twist workInfo
- Publication number
- JPH0637028B2 JPH0637028B2 JP3302087A JP3302087A JPH0637028B2 JP H0637028 B2 JPH0637028 B2 JP H0637028B2 JP 3302087 A JP3302087 A JP 3302087A JP 3302087 A JP3302087 A JP 3302087A JP H0637028 B2 JPH0637028 B2 JP H0637028B2
- Authority
- JP
- Japan
- Prior art keywords
- spindle
- twisted
- work
- tool
- housing
- 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 - Lifetime
Links
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
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は一定のリードをもったワーク、いわゆるねじれ
ワークの加工方法および装置に関する。TECHNICAL FIELD The present invention relates to a method and an apparatus for processing a work having a certain lead, so-called twist work.
従来、軸物で一定のリードをもったワークを加工する方
法としては、転造による成形方法が知られている。リー
ドの大きな、いわゆるスパイラル状のねじれワークにつ
いての正確な加工方法および装置もなく、製品の複雑化
が進み、多様な使用目的が要求されるようになって、ね
じれワークについてもその加工方法および装置が要望さ
れていた。Conventionally, a forming method by rolling is known as a method of processing a work having a certain lead with a shaft. There is no accurate processing method and device for so-called spiral twisted work with large leads, and the complexity of products has advanced and various usage purposes have been required, and the processing method and device for twisted work Was requested.
本発明は上記事情に鑑み提案されたもので、リードピッ
チに関わりなくねじれワークを効率良く高精度に加工出
来るねじれワークの加工方法および装置を提供すること
を目的とする。The present invention has been proposed in view of the above circumstances, and an object of the present invention is to provide a method and an apparatus for processing a twisted work that can efficiently and accurately process a twisted work regardless of the lead pitch.
本発明は、上記問題点を解決するためのその方法とし
て、ベッド上で対向する主軸間に挟持された一例リード
を有するねじれワークを加工する加工方法であって、ベ
ッド上のハウジングに設けられた第１の主軸を回転させ
るステップと、この第１の主軸に偏心し、ねじれワーク
の片側を保持する第２の主軸を回転させるステップと、
前記第２の主軸との間で挟持してねじれワークを保持
し、前記第１の主軸と同心上にある第３の主軸を前記第
１の主軸と同期回転させるステップと、前記第１の主軸
と相対的に制御されて回転する第２の主軸のねじれワー
クが常時工具に接するように、この工具を前記第２の主
軸の軸線方向に送るステップとからなり、前記第１の主
軸の回転に相対して第２の主軸を回転させ、この回転軸
線と直角方向のねじれワークの加工位置を特定な位置に
なるように保持し、ねじれワークのリードに従い、前記
工具をねじれワークと常時接触するように前記第１およ
び第２の主軸の回転の相関関係を維持し、この工具を前
記第２の主軸の軸線と平行な方向へ送って加工するねじ
れ加工方法とし、その装置として、ベッド上で対向する
主軸間に挟持された一定リードを有するねじれワークを
加工する加工装置であって、ベッド上の第１のハウジン
グ内に回転自在に設けられた第１の主軸と、この第１の
主軸内に偏心して回転自在に設けられた第２の主軸と、
この第２の主軸の軸心が一致して設けられ、前記ねじれ
ワークを保持する第１の保持部材と、前記第１ハウジン
グと対向してベッド上に設けられた第２ハウジングに設
けられ、前記第１の主軸と同軸線上で回転可能な第３の
主軸と、この第３の主軸に偏心して設けられ、前記第２
の主軸と同軸上でねじれワークを保持する第２の保持部
材と、前記第３の主軸の回転を前記第１の主軸の回転と
同期させる同期駆動機構と、前記第１および第３の主軸
を回転させる第１の駆動源と、前記第２の主軸を回転さ
せる第２の駆動源と、前記第１および第２の保持部材で
挟持され回転するねじれワークを加工する工具と、この
工具を保持して前記第２の主軸の軸線と平行な方向に移
動させる加工ユニットとからなり、前記第１の主軸の回
転に相対して第２の主軸を回転させ、この回転軸線と直
角方向にねじれワークの加工位置を特定な位置になるよ
うに保持し、ねじれワークのリードに従い、前記工具を
ねじれワークと常時接触するように前記第１および第２
の主軸の回転の相関関係を維持し、この工具を前記第２
の主軸の軸線と平行な方向へ送って加工することを特徴
とするねじれワークの加工装置とした。As a method for solving the above-mentioned problems, the present invention is a processing method for processing a twisted work having an example lead sandwiched between opposed spindles on a bed, which is provided in a housing on the bed. Rotating the first spindle, rotating a second spindle that is eccentric to the first spindle and holds one side of the twisted work,
Holding the twisted work by sandwiching it between the second main spindle and rotating the third main spindle concentric with the first main spindle in synchronization with the first main spindle; and the first main spindle. And a step of sending the tool in the axial direction of the second main spindle so that the twisted work of the second main spindle, which is controlled and rotates, is always in contact with the tool. By rotating the second main spindle relative to each other, the machining position of the twisted work in the direction perpendicular to the rotation axis is held at a specific position, and the tool is always brought into contact with the twisted work according to the lead of the twisted work. Is a twisting method for maintaining the correlation between the rotations of the first and second main spindles and sending the tool in a direction parallel to the axis of the second main spindle, and as a device therefor, it is opposed on a bed. Clamped between the spindles A processing device for processing a twisted work having a constant lead, comprising: a first main spindle rotatably provided in a first housing on a bed; and an eccentric rotatably provided in the first main spindle. And a second spindle,
The second main shaft is provided so that its axial center coincides with the first holding member for holding the twisted work, and the second housing provided on the bed so as to face the first housing. A third main shaft which is rotatable coaxially with the first main shaft, and is provided eccentrically with respect to the third main shaft,
A second holding member that holds a twisted work coaxially with the main spindle, a synchronous drive mechanism that synchronizes rotation of the third main spindle with rotation of the first main spindle, and the first and third main spindles. A first drive source for rotating, a second drive source for rotating the second main shaft, a tool for processing a twisted work that is clamped and rotated by the first and second holding members, and a tool for holding the tool. And a processing unit for moving the second spindle in a direction parallel to the axis of the second spindle, rotating the second spindle relative to the rotation of the first spindle, and twisting the workpiece perpendicular to the axis of rotation. The machining position is held at a specific position and the first and second tools are arranged so that the tool always contacts the twisted work according to the lead of the twisted work.
Maintaining the correlation of the rotation of the spindle of the
The apparatus for processing a twisted work is characterized in that it is fed in a direction parallel to the axis of the main shaft for machining.
第２の主軸と対向する主軸のワーク保持部材でワークを
保持し、回転させ、このワークの回転に第１の主軸およ
び対向する主軸を前記第２の主軸との相対回転を制御し
ながら回転させ、加工ユニットの工具を回転するねじれ
ワークのリードに沿って常に同一位置で主軸軸線方向に
のみ送りながらねじれワークを加工する。The work is held and rotated by the work holding member of the main spindle opposed to the second main spindle, and the first main spindle and the opposite main spindle are rotated while the relative rotation with respect to the second main spindle is controlled by the rotation of the work. , Machining a twisted work while always feeding the tool of the machining unit along the lead of the rotating work at the same position only in the spindle axis direction.
以下、本発明の方法および装置の一実施例を図面に基づ
いて更に詳細に説明する。Hereinafter, one embodiment of the method and apparatus of the present invention will be described in more detail with reference to the drawings.
第１図は、ねじれワークの加工方法および装置を表わす
全体平面図を示し、第２図は、同斜視図を示す。FIG. 1 is an overall plan view showing a method and apparatus for processing a twisted work, and FIG. 2 is a perspective view thereof.
第１図および第２図において示すように、本装置は概略
次のような構成となっている。即ち、ねじれワークを保
持し、回転させるために、ベッド上の対向する位置に設
けられた第１ハウジングと第２ハウジングと、加工ユニ
ットと、それらの駆動源とから成る。As shown in FIG. 1 and FIG. 2, the present apparatus is roughly constructed as follows. That is, in order to hold and rotate the twisted work, it is composed of a first housing and a second housing provided at opposite positions on the bed, a processing unit, and their drive sources.
まず、第１ハウジング１は図面中左方でベッド２上に固
設される。この第１ハウジング１には、第１の主軸３，
第２図の主軸４と２本の主軸が内装されている。第１の
主軸３は、前後の軸受５，６によって回転自在であり、
後部（反センタ側）にキー７を介して大歯車８が固着さ
れる。First, the first housing 1 is fixed on the bed 2 on the left side in the drawing. In this first housing 1, the first main spindle 3,
The main shaft 4 shown in FIG. 2 and two main shafts are installed. The first main shaft 3 is rotatable by front and rear bearings 5 and 6,
The large gear 8 is fixed to the rear part (opposite to the center) via the key 7.
前記第１の主軸３には、この第１の主軸３の回転中心Ａ
１からｔだけ偏心して回転中心Ａ２を有する第２の主軸
４が軸受９，１０を介して回転自在に内装される。The first main spindle 3 has a rotation center A of the first main spindle 3.
A second spindle 4 eccentric from 1 to t and having a rotation center A 2 is rotatably mounted via bearings 9 and 10.
第１の主軸３よりわずかに突出した第２の主軸の軸心に
はワークの片側を保持する第１の保持部材であるセンタ
１１を挿着してあり、これによりねじれワークＷの一端
を保持する。更に、第２の主軸４の軸心のセンタ１１近
傍には、後述するサーボモータ１６，内歯歯車１８，小
歯車１５等との間で構成するワーク回転機構１２の１つ
である係合ピン１３が植設され、ねじれワークＷを固着
した取付具１４の係合部と係合して回転力を伝え、ねじ
れワークＷを回転させる。第２の主軸４の後部には、前
記第１の主軸３後部と干渉しないように、小歯車１５が
固着され、第１の主軸３軸線上に第１ハウジング１外方
に設けられたワーク回転用の駆動源たるサーボモータ１
６に連結し、軸受１７，１７を介して回転自在の内歯歯
車１８と噛合している。A center 11 which is a first holding member for holding one side of the work is inserted in the axis of the second main shaft slightly protruding from the first main shaft 3 to hold one end of the twisted work W. To do. Further, in the vicinity of the center 11 of the shaft center of the second main shaft 4, an engagement pin which is one of the work rotating mechanisms 12 configured between a servo motor 16, an internal gear 18, a small gear 15 and the like which will be described later. 13 is planted, engages with the engaging portion of the fixture 14 to which the twisted work W is fixed, transmits a rotational force, and rotates the twisted work W. A small gear 15 is fixed to the rear portion of the second main spindle 4 so as not to interfere with the rear portion of the first main spindle 3, and a work rotation provided outside the first housing 1 on the axis of the first main spindle 3 is performed. Servo motor which is a drive source for
6 and is engaged with a rotatable internal gear 18 via bearings 17, 17.
第１ハウジング１内の前記第１の主軸３近傍には、第２
の主軸４，ねじれワークＷの回転と、第１の主軸３の回
転を同期させるための同期軸１９が、軸受２０と後述す
る第２のハウジング２３に内装された軸受箱３０内の軸
受４５を介して回転自在に軸承される。In the vicinity of the first main spindle 3 in the first housing 1, a second
The synchronous shaft 19 for synchronizing the rotation of the main shaft 4 and the twisted work W with the rotation of the first main shaft 3 drives the bearing 20 and the bearing 45 in the bearing box 30 installed in the second housing 23 described later. It is rotatably supported via.
第１ハウジング１内の同期軸１９の一部には、前記第１
の主軸３に固着された大歯車８と噛合す位置に同期歯車
２２が固着され、更にこの同期軸１９は、第１ハウジン
グ１側方に配設された同期用サーボモータ２１に直結し
ていて、この同期用サーボモータ２１の駆動による回転
を、同期歯車２２を介して大歯車８に伝達し第１の主軸
３を回転させている。そして、これらの同期用サーボモ
ータ２１と、同期歯車２２，大歯車８，同期軸１９と、
第２ハウジング２３側の同期歯車２９，大歯車２８とが
同期駆動機構４４を構成する。A part of the synchronizing shaft 19 in the first housing 1 is provided with the first
The synchronous gear 22 is fixed at a position where it meshes with the large gear 8 fixed to the main shaft 3, and the synchronous shaft 19 is directly connected to the synchronizing servomotor 21 arranged on the side of the first housing 1. The rotation caused by the driving of the synchronizing servomotor 21 is transmitted to the large gear 8 via the synchronizing gear 22 to rotate the first main shaft 3. Then, the synchronizing servo motor 21, the synchronous gear 22, the large gear 8, and the synchronous shaft 19,
The synchronous gear 29 and the large gear 28 on the second housing 23 side form a synchronous drive mechanism 44.
第１ハウジング１と対向する位置には、第２ハウジング
２３がシリンダー２４の駆動によりＺ軸方向（主軸軸線
方向）に移動自在に設けられる。A second housing 23 is provided at a position facing the first housing 1 so as to be movable in the Z-axis direction (main shaft axis direction) by driving the cylinder 24.
この第２ハウジング２３内には、偏心した位置で、前記
第２の主軸４の軸心と同軸上に第２の保持部材であるセ
ンタ２５を具備した第３の主軸２６が、軸受２７，２７
を介して回転自在に設けられる。第３の主軸２６先端の
センタ２５は、前述した第２の主軸４と同一軸線上に来
るように位置を調整してある。つまり、前述した第１の
主軸３と第２の主軸４のそれぞれの回転中心線Ａ１，Ａ
２と同一偏心地ｔだけ、この第３の主軸２６とセンタ２
５が偏心していることになる。In the second housing 23, a third main shaft 26 having a center 25, which is a second holding member, is provided in the bearings 27, 27 at an eccentric position coaxially with the axis of the second main shaft 4.
It is rotatably provided via. The position of the center 25 at the tip of the third main shaft 26 is adjusted so as to be on the same axis as the second main shaft 4 described above. That is, the rotation center lines A 1 and A 2 of the first spindle 3 and the second spindle 4 described above, respectively.
The same deviation t as that of the second main spindle 26 and the center 2
5 is eccentric.
第３の主軸２６後部には、大歯車２８が固着されこの大
歯車２８と噛合する歯車２９が、前記第１ハウジング１
内から第２ハウジング２３まで延設された同期軸１９に
固着されている。そして、この同期軸１９の第２ハウジ
ング２３側は、該第２ハウジング穴内に挿嵌された軸受
箱３０内の軸受４５で支持されている。A large gear 28 is fixed to a rear portion of the third main shaft 26, and a gear 29 that meshes with the large gear 28 is provided in the first housing 1
It is fixed to a synchronous shaft 19 extending from the inside to the second housing 23. Then, the second housing 23 side of the synchronous shaft 19 is supported by a bearing 45 in a bearing box 30 inserted and fitted in the second housing hole.
軸受箱３０外周一部には、キー３１が植設され第２ハウ
ジング２３の穴内に刻設されたキー溝２３ａに係合し、
同期軸線方向に摺動のみ可能となっていて、空間“ａ”
の範囲でのみ摺動することになる。A key 31 is planted on a part of the outer circumference of the bearing box 30 and engages with a key groove 23a formed in a hole of the second housing 23.
Only sliding is possible in the synchronous axis direction, and space "a"
It will slide only within the range.
第１および第２ハウジングの手前側には加工ユニットが
設けられる。A processing unit is provided on the front side of the first and second housings.
加工ユニット３２は、ベッド２上のベース３３に形成さ
れた摺動面３３ａをＺ軸方向移動自在のサドル３４と、
このサドル３４上面に形成された摺動面３４ａ上をＸ軸
方向（主軸軸線を横切る方向）移動自在のスライドベー
ス３５と、スライドベース３５上に載設されたハウジン
グ３６と、工具回転用サーボモータ３７と、工具回転を
伝達するタイミングベルト３８と、工具である砥石３９
とで構成されている。The processing unit 32 includes a saddle 34 that is movable in the Z-axis direction on a sliding surface 33a formed on a base 33 on the bed 2,
A slide base 35 that is movable on the sliding surface 34a formed on the upper surface of the saddle 34 in the X-axis direction (direction crossing the spindle axis), a housing 36 mounted on the slide base 35, and a tool rotation servo motor. 37, a timing belt 38 that transmits tool rotation, and a grindstone 39 that is a tool
It consists of and.
ベッド２側にはサーボモータ４０が配設され、ボールね
じ４１を介してサドル３４と連結されているので、サド
ル３４はサーボモータ４０の駆動によってＺ軸方向に移
動可能である。また、サドル３４の前面にもサーボモー
タ４２が配設され、ボールねじ４３を介してスライドベ
ース３５と連結されているので、スライドベース３５は
サーボモータ４２の駆動によってＸ軸方向に移動可能で
ある。Since the servomotor 40 is disposed on the bed 2 side and is connected to the saddle 34 via the ball screw 41, the saddle 34 can be moved in the Z-axis direction by driving the servomotor 40. Further, since the servo motor 42 is also arranged on the front surface of the saddle 34 and is connected to the slide base 35 via the ball screw 43, the slide base 35 can be moved in the X-axis direction by driving the servo motor 42. .
以上の如き装置によって、次のような方法でねじれワー
クＷの研磨加工を行なう。The twisted work W is polished by the following method using the apparatus as described above.
サーボモータ４２を駆動させ、スライドベース３５をＸ
軸方向で後退させねじれワークＷから、加工ユニット３
２の砥石３９を退避させておく。Drive the servo motor 42 to move the slide base 35 to X
Retract in the axial direction and twist the work W to the processing unit 3
The second grindstone 39 is retracted.
同様に、第２ハウジング２３をシリンダー２４の駆動に
よって、Ｚ軸方向に後退させてねじれワークＷからセン
タ２５を退避させておく。Similarly, the second housing 23 is retracted in the Z-axis direction by driving the cylinder 24 to retract the center 25 from the twisted work W.
次いで、ねじれワークＷを取付けた取付具１４を第２の
主軸４のピン１３に係合させると同時に、ねじれワーク
Ｗの一端をセンタ１１で支持する。Next, the fixture 14 having the twisted work W attached thereto is engaged with the pin 13 of the second spindle 4, and at the same time, one end of the twisted work W is supported by the center 11.
そして、ねじれワークＷの他端を支持するために、退避
している第２のハウジング２３をシリンダ２４の駆動で
Ｚ軸方向に移動し、第２ハウジング内の第３の主軸２６
に挿着されたセンタ２５で押圧し支持する。Then, in order to support the other end of the twisted work W, the retracted second housing 23 is moved in the Z-axis direction by the drive of the cylinder 24, and the third main spindle 26 in the second housing is moved.
It is pressed and supported by the center 25 inserted in the.
次に、サーボモータ１６を駆動して内歯歯車１８を回転
させ、偏心している小歯車１５，第２の主軸４を回転さ
せてねじれワークＷを回転させる。Next, the servomotor 16 is driven to rotate the internal gear 18, and the eccentric small gear 15 and the second main shaft 4 are rotated to rotate the twisted work W.
同時に、同期用サーボモータ２１を駆動させ同期歯車２
２，大歯車８，第１の主軸３を第２の主軸４と関連さ
せ、ねじれワークＷとの相対回転により加工すべきワー
クのＸ方向の位置を定め、Ｚ方向へ送られる工具と常に
接するように制御して回転させる。At the same time, the synchronous servomotor 21 is driven to drive the synchronous gear 2
2, the large gear 8 and the first spindle 3 are associated with the second spindle 4, and the relative rotation with the twisted workpiece W determines the position of the workpiece to be machined in the X direction and always contacts the tool fed in the Z direction. Control to rotate.
第１の主軸３の回転と同時に、同期軸１９を通じ第２ハ
ウジング２３内の同期歯車２９，大歯車２８を介して第
３の主軸２６も同期回転する。Simultaneously with the rotation of the first main shaft 3, the third main shaft 26 also rotates synchronously through the synchronous shaft 19 via the synchronous gear 29 and the large gear 28 in the second housing 23.
ねじれワークＷが回転し、第１ハウジング１内の第２の
主軸４および第２ハウジング２３内の主軸２６が同期回
転したら、サーボモータ４０，４２を駆動させてサドル
３４，スライドベース３５をＸ軸，Ｚ軸上を移動させ砥
石を研磨加工開始位置に位置決めする。同時にスライド
ベース３５上の工具回転用サーボモータ３７を駆動させ
砥石３９を回転させる。When the twisted work W rotates and the second spindle 4 in the first housing 1 and the spindle 26 in the second housing 23 rotate synchronously, the servomotors 40 and 42 are driven to move the saddle 34 and the slide base 35 to the X axis. , The Z-axis is moved to position the grindstone at the polishing start position. At the same time, the tool rotation servomotor 37 on the slide base 35 is driven to rotate the grindstone 39.
前述した如く、第１の主軸３の中心線Ａ１と第２の主軸
４の中心線Ａ２の偏心量ｔは、ねじれワークＷの半径値
に等しく、一方ねじれワークＷのねじれの山と谷の高さ
はそれぞれ、第１の主軸３の中心線Ａ１からねじれワー
クＷの半径分だけズレている。As described above, the center line A 1 of the first main shaft 3 and the eccentric amount t of the center line A 2 of the second main shaft 4 is equal to the radius value of the twist workpiece W, whereas the twist of peaks and valleys of the twisted workpiece W Are displaced from the center line A 1 of the first main spindle 3 by the radius of the twisted work W.
ねじれワークＷの両端のみ加工する場合は砥石３９が常
時一定した位置、カッティングポイントＰ点のＺ軸方向
の延長線上から更に半径分だけ、サーボモータ４２を駆
動させて砥石３９をＸ軸方向に送り込んで加工すること
ができる。When only the both ends of the twisted work W are processed, the grindstone 39 is constantly moved to the X-axis direction by driving the servo motor 42 by a radius corresponding to a constant position of the cutting point P on the extension line in the Z-axis direction. Can be processed with.
ねじれワークＷの一端から研磨加工を開始し、端部の加
工を終了したら砥石３９を一定位置であるカッティング
ポイントＰ点に戻し、第１の主軸３および第２の主軸４
の回転角を初期状態にして、ねじれワークＷのリードに
沿って加工ユニット３２をＺ軸方向に送り込み、ねじれ
ワークＷの研磨加工を行なう。更に、第１の主軸３、第
２の主軸４と対向する主軸２６と砥石３９相互の動きを
詳細に説明すると、砥石３９とワークＷのねじれ部加工
のカッティングポイントＰはＸ軸方向については一定位
置になる様に設定する。The grinding work is started from one end of the twisted work W, and when the end work is finished, the grindstone 39 is returned to the cutting point P, which is a fixed position, and the first spindle 3 and the second spindle 4 are moved.
In the initial state, the processing unit 32 is fed in the Z-axis direction along the lead of the twisted work W to polish the twisted work W. Further, the mutual movement of the spindle 26 and the grindstone 39 facing the first spindle 3 and the second spindle 4 will be described in detail. The cutting point P for processing the twisted portion of the grindstone 39 and the workpiece W is constant in the X-axis direction. Set to the position.
例えば、ねじれワークＷの山の頂点を加工するときは、
第１の主軸３の軸心Ａ１に対し第２の主軸軸心Ａ２は第
１図に示す如く同期軸１９側に偏心量ｔを得るべく第１
の主軸３を回転させて位置を合わせる。また、ねじれワ
ークＷに谷部を加工するときは第１の主軸軸心Ａ１に対
し、第２の主軸軸心Ａ２が砥石３９側に偏心量ｔだけ寄
るために第１の主軸３を１８０度回転させ、位置を合わ
せる。For example, when processing the top of the mountain of the twisted work W,
The order to the axis A 1 of the first main shaft 3 and the second spindle axis A 2 give an eccentric amount t in the synchronization shaft 19 side as shown in FIG. 1 1
The main shaft 3 of is rotated to align the position. Further, with respect to the first spindle axis A 1 when processing the valleys to twist the workpiece is W, the first main shaft 3 to the second spindle axis A 2 is due only eccentric amount t on the grindstone 39 side Rotate 180 degrees and align the position.
この第１の主軸３は第２ハウジングの主軸２６と同期を
とりながらカッティングポイントＰを常に一定位置に位
置させるためワークＷのねじれリードに合せて最大２ｔ
の範囲内で偏心中心Ａ２を旋回する。Since the first spindle 3 always keeps the cutting point P at a fixed position while synchronizing with the spindle 26 of the second housing, the maximum of 2t can be adjusted according to the twisted lead of the work W.
The center of eccentricity A 2 is turned within the range.
つぎにワークＷ自身に回転を与える為第２の主軸４を回
転させる。Next, the second spindle 4 is rotated in order to give rotation to the work W itself.
即ち、第２の主軸４を回転させると同時に偏心量を変化
させるため第１の主軸３を回転させる。That is, the second main spindle 4 is rotated, and at the same time, the first main spindle 3 is rotated in order to change the eccentricity amount.
砥石３９のＺ方向の送り速度は第１，第２の主軸の各主
軸の回転数の相関関係とねじれワークＷのリードに合わ
せて自動計算制御される。The Z-direction feed rate of the grindstone 39 is automatically calculated and controlled in accordance with the correlation between the rotational speeds of the respective first and second spindles and the lead of the twisted work W.
一工程終了後は、前述と逆の方法で砥石３９を若干、ね
じれワークＷから離反させて再び加工ユニット３２を研
磨加工開始位置まで移動させ次工程加工にかかる。After the completion of one step, the grindstone 39 is slightly separated from the twisted work W by the method reverse to the above, and the processing unit 32 is again moved to the polishing processing start position for the next step processing.
本発明によれば、ワークのリードピッチが変わっても、
リードピッチに応じた主軸の回転制御を行うことにより
ねじれワークを効率良く高精度に加工することができ、
汎用性があり、製品の複雑化、多様な使用目的に対応可
能となり、利用価値の大きな画期的なねじれワークの加
工方法および装置を提供することが可能となった。According to the present invention, even if the lead pitch of the work changes,
By controlling the rotation of the spindle according to the lead pitch, twisted workpieces can be efficiently and accurately machined.
It has versatility, can be used for complicated products, and can be used for various purposes, and it has become possible to provide an epoch-making method and device for processing twisted works with great utility value.
第１図は、ねじれワークの加工方法および装置を表わす
全体平面図を示し、第２図は、同斜視図を示す。 １……第１ハウジング、３……第１の主軸 ４……第２の主軸、８……大歯車 11……センタ（ワーク保持部材） 12……ワーク回転機構、13……ピン 15……小歯車、18……内歯歯車 19……同期軸、22……同期歯車 23……第２ハウジング 25……センタ（ワーク保持部材） 26……第３の主軸、28……大歯車 29……同期歯車、32……加工ユニット 39……砥石、44……同期駆動機構。FIG. 1 is an overall plan view showing a method and apparatus for processing a twisted work, and FIG. 2 is a perspective view thereof. 1 …… First housing, 3 …… First spindle 4 …… Second spindle, 8 …… Large gear 11 …… Center (work holding member) 12 …… Work rotation mechanism, 13 …… Pin 15 …… Small gear, 18 …… Internal gear 19 …… Synchronous shaft, 22 …… Synchronous gear 23 …… Second housing 25 …… Center (work holding member) 26 …… Third main spindle, 28 …… Large gear 29… … Synchronous gear, 32 …… Machining unit 39 …… Grindstone, 44 …… Synchronous drive mechanism.
Claims (2)
定リードを有するねじれワークを加工する加工方法であ
って、 ベッド上のハウジングに設けられた第１の主軸を回転さ
せるステップと、 この第１の主軸に偏心し、ねじれワークの片側を保持す
る第２の主軸を回転させるステップと、 前記第２の主軸との間で挟持してねじれワークを保持
し、前記第１の主軸と同心上にある第３の主軸を前記第
１の主軸と同期回転させるステップと、 前記第１の主軸と相対的に制御されて回転する第２の主
軸と第３の主軸とに挟持されているねじれワークが常時
工具に接するように、この工具を前記第２の主軸の軸線
方向に送るステップとからなり、 前記第１の主軸の回転に相対して第２の主軸を回転さ
せ、この回転軸線と直角方向のねじれワークの加工位置
を特定な位置になるように保持し、ねじれワークのリー
ドに従い、前記工具をねじれワークと常に接触するよう
に前記第１および第２の主軸の回転の相関関係を維持
し、この工具を前記第２の主軸の軸線と平行な方向へ送
って加工することを特徴とするねじれワークの加工方
法。1. A method of processing a twisted work having a constant lead sandwiched between opposed spindles on a bed, the method comprising rotating a first spindle provided in a housing on the bed, A step of rotating a second spindle that is eccentric to the first spindle and holds one side of the twisted workpiece; and holding the twisted workpiece by sandwiching the twisted workpiece with the second spindle, and concentric with the first spindle. A step of rotating the upper third spindle in synchronization with the first spindle; and a twist sandwiched between a second spindle and a third spindle that are controlled and rotated relative to the first spindle. Sending the tool in the axial direction of the second spindle so that the workpiece always contacts the tool, rotating the second spindle relative to the rotation of the first spindle, and rotating the second spindle. Of twisted work in the right angle direction The machining position is maintained at a specific position, and the tool is maintained in a correlative relationship with the rotation of the first and second spindles so that the tool always contacts the twisted work according to the lead of the twisted work. A method for processing a twisted work, wherein the twisted work is processed by feeding in a direction parallel to the axis of the second main shaft.
定リードを有するねじれワークを加工する加工装置であ
って、 ベッド上の第１のハウジング内に回転自在に設けられた
第１の主軸と、 この第１の主軸内に偏心して回転自在に設けられた第２
の主軸と、 この第２の主軸の軸心が一致して設けられ、前記ねじれ
ワークを保持する第１の保持部材と、 前記第１ハウジングと対向してベッド上に設けられた第
２ハウジングに設けられ、前記第１の主軸と同軸線上で
回転可能な第３の主軸と、 この第３の主軸に偏心して設けられ、前記第２の主軸と
同軸上でねじれワークを保持する第２の保持部材と、 前記第３の主軸の回転を前記第１の主軸の回転と同期さ
せる同期駆動機構と、 前記第１および第３の主軸を回転させる第１の駆動源
と、 前記第２の主軸を回転させる第２の駆動源と、 前記第１および第２の保持部材で挟持され回転するねじ
れワークを加工する工具と、 この工具を保持して前記第２の主軸の軸線と平行な方向
に移動させる加工ユニットとからなり、 前記第１の主軸の回転に相対して第２の主軸を回転さ
せ、この回転軸線と直角方向のねじれワークの加工位置
を特定な位置になるように保持し、ねじれワークのリー
ドに従い、前記工具をねじれワークと常時接触するよう
に前記第１および第２の主軸の回転の相関関係を維持
し、この工具を前記第２の主軸の軸線と平行な方向へ送
って加工することを特徴とするねじれワークの加工装
置。2. A processing apparatus for processing a twisted work having a constant lead sandwiched between opposed spindles on a bed, the spindle being rotatably provided in a first housing on the bed. And a second eccentrically and rotatably provided in the first main shaft.
And a first holding member that is provided such that the axes of the second spindle are aligned with each other and holds the twisted work, and a second housing that is provided on the bed so as to face the first housing. A third spindle that is provided and is rotatable coaxially with the first spindle; and a second holding that is provided eccentrically to the third spindle and that holds the twisted work coaxially with the second spindle. A member, a synchronous drive mechanism for synchronizing the rotation of the third main spindle with the rotation of the first main spindle, a first drive source for rotating the first and third main spindles, and the second main spindle A second drive source that rotates, a tool that processes a twisted work that is clamped by the first and second holding members and that rotates, and a tool that holds the tool and moves in a direction parallel to the axis of the second spindle. And a machining unit for rotating the first spindle. The second spindle is rotated relative to, and the machining position of the twisted work in the direction perpendicular to the rotation axis is held at a specific position, and the tool is constantly brought into contact with the twisted work according to the lead of the twisted work. As described above, the twisted workpiece machining apparatus is characterized in that the correlation between the rotations of the first and second spindles is maintained and the tool is fed in a direction parallel to the axis of the second spindle for machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3302087A JPH0637028B2 (en) | 1987-02-16 | 1987-02-16 | Method and apparatus for processing twist work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3302087A JPH0637028B2 (en) | 1987-02-16 | 1987-02-16 | Method and apparatus for processing twist work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63200956A JPS63200956A (en) | 1988-08-19 |
| JPH0637028B2 true JPH0637028B2 (en) | 1994-05-18 |
Family
ID=12375111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3302087A Expired - Lifetime JPH0637028B2 (en) | 1987-02-16 | 1987-02-16 | Method and apparatus for processing twist work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637028B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536178A (en) * | 2022-03-04 | 2022-05-27 | 湖南高河硬质合金有限公司 | Carbide processing equipment |
-
1987
- 1987-02-16 JP JP3302087A patent/JPH0637028B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63200956A (en) | 1988-08-19 |
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