JP3456341B2 - Workpiece seating detector for spindle chuck - Google Patents
Workpiece seating detector for spindle chuckInfo
- Publication number
- JP3456341B2 JP3456341B2 JP13442496A JP13442496A JP3456341B2 JP 3456341 B2 JP3456341 B2 JP 3456341B2 JP 13442496 A JP13442496 A JP 13442496A JP 13442496 A JP13442496 A JP 13442496A JP 3456341 B2 JP3456341 B2 JP 3456341B2
- Authority
- JP
- Japan
- Prior art keywords
- seating
- fluid
- fluid supply
- spindle
- chuck
- 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 - Fee Related
Links
Landscapes
- Jigs For Machine Tools (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、旋盤等の工作機
械における主軸チャックにワークが適正に着座したこと
を検出する主軸チャックのワーク着座検出装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work-seat detection device for a spindle chuck, which detects that a work is properly seated on a spindle chuck in a machine tool such as a lathe.
【０００２】[0002]
【従来の技術】従来、旋盤において、ワークが主軸チャ
ックに着座したか否かを検出する着座検出装置を設けた
ものがある。この従来の着座検出装置のセンサ部は主軸
チャックの後方で主軸内に設けられており、主軸および
主軸チャックと共に回転する。一方、ワークの内側を加
工する場合に、切粉をワーク外へ排出する機構として、
主軸チャックの後部に、チャック面から主軸の後端にか
けて連通する連通孔を設けたクーラントスルーと呼ばれ
る機構が設けられることがある。2. Description of the Related Art Conventionally, there is a lathe provided with a seating detection device for detecting whether or not a work is seated on a spindle chuck. The sensor portion of this conventional seating detection device is provided inside the spindle behind the spindle chuck and rotates together with the spindle and the spindle chuck. On the other hand, when machining the inside of the work, as a mechanism to discharge the chips out of the work,
In some cases, a mechanism called a coolant through is provided in the rear portion of the spindle chuck, which has a communication hole that communicates from the chuck surface to the rear end of the spindle.
【０００３】[0003]
【発明が解決しようとする課題】このクーラントスルー
の連通孔と着座検出装置のセンサ部とは略同じ位置に配
置されるため、クーラントスルー仕様においては、着座
を検出することに無理があった。そのため、着座検出装
置を設けない構成とされている。しかし、着座検出をし
ないことには、ワークの加工不良を増加させる一因とも
なり、問題であった。また、従来の主軸チャックと共に
センサ部が回転する着座検出装置では、この装置を設置
した分だけ主軸に余分な負荷が作用することになり、機
械の負担が大きくなる。Since the communication hole of the coolant through and the sensor portion of the seating detection device are arranged at substantially the same position, it is difficult to detect the seating in the coolant through specification. Therefore, the seating detection device is not provided. However, not detecting the seating has been a problem because it contributes to an increase in machining defects of the work. Further, in the seating detection device in which the sensor unit rotates together with the conventional spindle chuck, an extra load acts on the spindle due to the installation of this device, which increases the load on the machine.
【０００４】この発明は上記課題を解消するものであ
り、主軸内にクーラントスルー機構等の部品を配置する
障害とならず、また主軸の回転負荷の増大を回避できる
主軸チャックのワーク着座検出装置を提供することを目
的とする。The present invention solves the above problems and provides a workpiece seating detector for a spindle chuck that does not obstruct the placement of parts such as a coolant through mechanism in the spindle and can avoid an increase in the rotational load of the spindle. The purpose is to provide.
【０００５】[0005]
【課題を解決するための手段】この発明の主軸チャック
のワーク着座検出装置は、上記課題を解消するため、回
転駆動される主軸チャックと、この主軸チャックの近傍
に固定配置された着座検出装置とを備えるものとする。
前記主軸チャックは、半径方向に同期移動してワークの
周面を把持する複数のチャック爪と、ワークの端面を接
触させる位置決め部材である着座ロケータとを有し、か
つ前記主軸チャックは、前記着座ロケータのワーク着座
面に設けられたノズルへ通じる流体通路を有し、前記ノ
ズルはワーク把持状態で前記チャック爪よりも主軸中心
側にある。前記着座検出装置は、前記流体通路の入口に
対して進退して接離自在な流体供給部材と、この流体供
給部材から供給される検出流体の背圧を検出するセンサ
とを有するものである。検出流体には空気やその他のガ
ス，オイル等が用いられる。この構成によると、ワーク
の着座を検出するとは、主軸チャックの回転を止め、流
体供給部材を進出させて主軸チャックの流体通路の入口
に接触させる。この状態でエア供給部材から主軸チャッ
クの流体通路に流体圧を供給し、その背圧を前記センサ
で検出する。ワークが適正に着座しているときは、流体
漏れがなく所定の背圧が得られ、着座不良の場合は背圧
が低下することから、主軸チャックにワークの適正な着
座が行われているか否かが検出される。主軸を回転させ
るときは、流体供給部材を主軸チャックから離す。その
ため、流体供給部材やセンサ等が主軸チャックの回転負
荷とならず、機械への負担が軽減される。また、流体供
給部材やセンサは固定設置されるものであり、主軸チャ
ックには流体通路を設けるだけで良いため、主軸内に各
種の部品、例えばクーラントスルー機構等を設ける場合
の障害とならない。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a work piece seating detector for a spindle chuck according to the present invention comprises a spindle chuck that is rotationally driven, and a seating detector that is fixedly arranged near the spindle chuck. It shall be provided with a.
The spindle chuck moves in the radial direction in synchronization with the workpiece.
Contact the end surface of the work with multiple chuck claws that grip the peripheral surface.
A seating locator that is a positioning member to be touched,
One prior Symbol spindle chuck a work seating of the seating locator
Have a fluid passage leading to a nozzle provided on a surface, said Bruno
In the gripping state of the workpiece, the slip is centered on the spindle rather than the chuck jaws.
On the side. The seating detection device includes a fluid supply member that is movable back and forth with respect to the inlet of the fluid passage and a sensor that detects a back pressure of a detection fluid supplied from the fluid supply member. Air, other gas, oil or the like is used as the detection fluid. According to this configuration, when the seating of the work is detected, the rotation of the spindle chuck is stopped and the fluid supply member is advanced to bring it into contact with the inlet of the fluid passage of the spindle chuck. In this state, fluid pressure is supplied from the air supply member to the fluid passage of the spindle chuck, and the back pressure is detected by the sensor. When the work is properly seated, there is no fluid leakage and a predetermined back pressure is obtained, and when seating is poor, the back pressure decreases. Is detected. When rotating the spindle, the fluid supply member is moved away from the spindle chuck. Therefore, the fluid supply member, the sensor, and the like do not become a rotational load of the spindle chuck, and the load on the machine is reduced. Further, since the fluid supply member and the sensor are fixedly installed and only the fluid passage needs to be provided in the spindle chuck, there is no obstacle when various components such as a coolant through mechanism are provided in the spindle.
【０００６】上記構成において、前記主軸チャックの流
体通路の入口が、前記固定配置の着座検出装置に設けら
れた流体供給部材に対向するように、前記主軸チャック
の回転停止角度を制御する手段を設けても良い。これに
より、流体通路の入口を確実に流体供給部材に連通させ
ることができ、確実な着座検出が行える。また、上記構
成において、前記流体供給部材がピストンで構成され、
このピストンの軸方向に中間部に、流体供給源側の接続
口から検出流体を受け入れる受入口が形成されたものと
しても良い。前記接続口と前記受入口とは、流体供給部
材が流体通路の入口に接合された状態でのみ連通するよ
うに構成する。この構成とした場合、流体圧を常に供給
することで、着座不良の場合のみ、センサをオフにする
ことができ、誤検知を少なくすることができる。また、
流体供給部材の移動とは別に経路接続の制御を行う手段
を設けることが不要で、制御が簡単になる。In the above structure, means for controlling the rotation stop angle of the spindle chuck is provided so that the inlet of the fluid passage of the spindle chuck faces the fluid supply member provided in the seating detector of the fixed arrangement. May be. As a result, the inlet of the fluid passage can be surely communicated with the fluid supply member, and reliable seating detection can be performed. Further, in the above configuration, the fluid supply member is configured by a piston,
A receiving port for receiving the detection fluid from the connection port on the fluid supply source side may be formed at an intermediate portion in the axial direction of the piston. The connection port and the receiving port are configured to communicate with each other only when the fluid supply member is joined to the inlet of the fluid passage. With this configuration, by constantly supplying the fluid pressure, the sensor can be turned off only in the case of seating failure, and erroneous detection can be reduced. Also,
Since it is not necessary to provide a means for controlling the path connection separately from the movement of the fluid supply member, the control becomes simple.
【０００７】[0007]
【発明の実施の形態】この発明の一実施形態を図１およ
び図２に基づいて説明する。図２（Ａ）は旋盤における
主軸装置の破断側面図を、同図（Ｂ）はその正面図を各
々示す。この主軸装置はクーラントスルー仕様としたも
のであり、主軸台１に軸受２を介して中空の主軸３が回
転自在に支持され、その先端に主軸チャック４が取付け
られている。主軸３内にはクーラント配管５が挿通され
ている。主軸３は、後部に設けられたプーリ６およびベ
ルト７を介して主軸モータ８により回転駆動される。ま
た、主軸２は、プーリおよびタイミングベルト等からな
る巻き掛け式の伝達機構９を介してロータリエンコーダ
等の回転検出器１０に接続されている。回転検出器１０
は、その検出値で主軸モータ８をフィードバック制御し
て主軸チャック４の停止時の回転角度を制御する停止角
度制御手段１１に接続されている。この主軸２の回転角
度の停止機能は、ワークＷをミリングヘッド等の回転工
具で加工するとき等に利用される。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. FIG. 2A is a cutaway side view of a spindle device in a lathe, and FIG. 2B is a front view thereof. This spindle device has a coolant through specification, and a hollow spindle 3 is rotatably supported by a spindle head 1 via a bearing 2, and a spindle chuck 4 is attached to the tip thereof. A coolant pipe 5 is inserted into the main shaft 3. The main shaft 3 is rotationally driven by a main shaft motor 8 via a pulley 6 and a belt 7 provided at the rear part. The main shaft 2 is connected to a rotation detector 10 such as a rotary encoder via a winding type transmission mechanism 9 including a pulley and a timing belt. Rotation detector 10
Is connected to a stop angle control means 11 for feedback controlling the spindle motor 8 based on the detected value to control the rotation angle of the spindle chuck 4 when the spindle chuck 4 is stopped. The function of stopping the rotation angle of the spindle 2 is used when the work W is processed by a rotary tool such as a milling head.
【０００８】主軸チャック４は、半径方向に同期移動し
てワークＷの周面を把持する複数（例えば３〜４個）の
チャック爪１２と、ワークＷの端面を接触させる位置決
め部材である円板状の着座ロケータ１３とを有してい
る。着座ロケータ１３は、中央に開口１３ａを有してい
て、主軸チャック４の中央部に設けられた開口４ａを介
してクーラント配管５に連通しており、クーラント配管
５に供給されたクーラントが着座ロケータ１３の中央開
口１３ａから円筒状ワークＷの中心孔内に吐出される。
着座ロケータ１３のワーク着座面１３ｂには、溝部が形
成されて流体案内部材１４が半径方向に沿って埋め込み
設置され、流体案内部材１４に対して検出流体であるエ
アを供給する着座検出装置１５の検出装置本体１５ａ
が、主軸チャック４の近傍で主軸台１に設置された固定
の取付台１６に固定設置されている。The spindle chuck 4 is a circular plate which is a positioning member for bringing the end faces of the work W into contact with a plurality (for example, 3 to 4) of chuck claws 12 that synchronously move in the radial direction and grip the peripheral surface of the work W. And a seating locator 13 in the shape of. The seating locator 13 has an opening 13a at the center and communicates with the coolant pipe 5 through an opening 4a provided at the center of the spindle chuck 4, and the coolant supplied to the coolant pipe 5 is seated by the seating locator 13. It is discharged into the center hole of the cylindrical work W through the central opening 13a of the cylindrical work 13.
A groove is formed in the work seating surface 13b of the seating locator 13, and a fluid guide member 14 is embedded and installed along the radial direction of the seating detection device 15 that supplies air as a detection fluid to the fluid guide member 14. Detection device body 15a
Is fixedly installed on a fixed mount 16 installed on the headstock 1 in the vicinity of the spindle chuck 4.
【０００９】図２（Ｂ）のＩ−Ｉ線断面を図１（Ａ）に
拡大して示すように、流体案内部材１４は着座ロケータ
１３のワーク着座面１３ｂの一部を構成しており、この
ワーク着座面１３ｂに開口するノズル１７と、このノズ
ル１７に連通する流体通路１８が設けられている。な
お、ノズル１７は、流体案内部材１４から離れた位置で
ワーク座面１３ｂに設けられて着座ロケータ１３内の流
体通路（図示せず）を介して流体案内部材１４に連通す
るものとしても良い。流体案内部材１４は、Ｌ字状に屈
曲して主軸チャック４の外周面に突出状態で軸方向に延
びており、その先端付近に流体通路１８の入口１９が設
けられている。As shown in FIG. 1 (A) by enlarging the section taken along the line I--I of FIG. 2 (B), the fluid guide member 14 constitutes a part of the work seating surface 13b of the seating locator 13. A nozzle 17 opening to the work seating surface 13b and a fluid passage 18 communicating with the nozzle 17 are provided. The nozzle 17 may be provided on the work seat surface 13b at a position distant from the fluid guide member 14 and communicate with the fluid guide member 14 via a fluid passage (not shown) in the seating locator 13. The fluid guide member 14 is bent in an L shape and extends in the axial direction in a protruding state on the outer peripheral surface of the spindle chuck 4, and an inlet 19 of the fluid passage 18 is provided near the tip thereof.
【００１０】検出装置本体１５ａは、ブラケット２０を
介して前記取付台１６に固定設置されており、内部に流
体圧シリンダ２１が形成されている。流体圧シリンダ２
１のピストンは、主軸チャック４の半径方向に進退自在
に設けられていて、主軸チャック４の流体通路１８の入
口１９に対して先端が接離自在な流体供給部材２２とな
る。流体供給部材２２の先端部は外周に面取が施してあ
り、流体通路１８の入口１９は流体供給部材２２の先端
が浅く嵌合可能な座繰り部を有している。流体供給部材
２２には、先端面が供給口となる供給路２３が軸心部に
形成され、供給路２３の他端は流体供給部材２２の外径
面に開口する受入口２４に形成されている。流体圧シリ
ンダ２１は、復帰ばね２５で流体供給部材２２を引っ込
み側へ付勢した単動型のエアシリンダからなり、そのボ
トム側のシリンダ室に配管２６および着座切換バルブ２
７を介してエア供給源からなる流体供給源２８に接続さ
れている。The detector main body 15a is fixedly installed on the mount 16 via a bracket 20, and a fluid pressure cylinder 21 is formed inside. Fluid pressure cylinder 2
The first piston is a fluid supply member 22 which is provided so as to be able to advance and retreat in the radial direction of the spindle chuck 4 and has a tip which can be brought into contact with and separated from an inlet 19 of a fluid passage 18 of the spindle chuck 4. The tip of the fluid supply member 22 is chamfered on the outer circumference, and the inlet 19 of the fluid passage 18 has a counterbore in which the tip of the fluid supply member 22 can be fitted shallowly. The fluid supply member 22 is provided with a supply path 23 having a tip end surface as a supply port at the axial center portion, and the other end of the supply path 23 is formed at a receiving port 24 opening to the outer diameter surface of the fluid supply member 22. There is. The fluid pressure cylinder 21 is a single-acting air cylinder in which the return spring 25 biases the fluid supply member 22 toward the retracted side, and the pipe 26 and the seating switching valve 2 are provided in the cylinder chamber on the bottom side.
A fluid supply source 28 composed of an air supply source is connected via 7.
【００１１】検出装置本体１５ａ内には、固定側の流体
通路２９が設けられ、この流体通路２９の出口部は、流
体供給部材２２が進出した状態で受入口２４に連通する
接続口３０となっている。したがって、検出装置本体１
５ａと流体供給部材２２とで、流体通路２９と供給路２
３間を開閉するバルブが構成される。流体通路２９の入
口部は、配管３１を介して前記と別のエア供給源からな
る流体供給源３２に接続され、途中に背圧を検出する圧
力スイッチ等からなる着座確認センサ３３が介在してい
る。なお、両流体供給源２８，３２は共通の装置であっ
ても良い。A fixed-side fluid passage 29 is provided in the detection device body 15a, and an outlet portion of the fluid passage 29 serves as a connection port 30 which communicates with the receiving inlet 24 in a state where the fluid supply member 22 is advanced. ing. Therefore, the detection device body 1
5a and the fluid supply member 22, the fluid passage 29 and the supply passage 2
A valve that opens and closes between 3 is configured. The inlet of the fluid passage 29 is connected via a pipe 31 to a fluid supply source 32 composed of an air supply source different from the above, and a seating confirmation sensor 33 composed of a pressure switch or the like for detecting back pressure is interposed in the middle. There is. Both fluid supply sources 28 and 32 may be a common device.
【００１２】上記構成の着座確認動作を説明する。常時
は、検出装置本体１５ａ内の流体供給部材２２は引っ込
んでいて、主軸チャック４と非接触であり、主軸チャッ
ク４は自由に回転する。主軸チャック４に新たなワーク
Ｗを把持したときなど、ワークＷの着座を確認するとき
は、主軸チャック４の流体通路１８の入口１９が流体供
給部材２２と対向するように、主軸３を回転停止させ
る。この停止角度は、停止角度制御手段１１で行われ
る。The seating confirmation operation of the above configuration will be described. Normally, the fluid supply member 22 in the detection device main body 15a is retracted and is not in contact with the spindle chuck 4, and the spindle chuck 4 freely rotates. When confirming the seating of the work W such as when a new work W is gripped by the main shaft chuck 4, the main shaft 3 is stopped so that the inlet 19 of the fluid passage 18 of the main shaft chuck 4 faces the fluid supply member 22. Let The stop angle is controlled by the stop angle control means 11.
【００１３】この状態で、着座切換バルブ２７をオンす
ることにより、流体供給部材２２が主軸チャック４側へ
エア圧で移動し、主軸チャック４に設けられている流体
通路１８の入口１９に嵌まり込み状態に接触する。着座
確認センサ３３の配管３１へは常時エアーを流してお
き、流体供給部材２２が上記のように接した時点で、流
体供給部材２２の受入口２４と検出装置本体１５ａの接
続口３０とが連通してエアーが流体供給部材２２内を流
れ、着座ロケータ１３におけるノズル１７に圧力が作用
する。ワークＷが着座ロケータ１３の座面１３ｂに適正
に着座しておれば、エアーの漏れがなく、背圧が所定圧
以上に維持されてセンサ３３のオン状態が維持されるこ
とにより着座が確認される。着座不良の場合は、背圧が
低下するため、センサ３３がオフとなり、着座不良であ
ることがわかる。この着座確認の後、着座切換バルブ２
７をオフにすると、流体供給部材２２は復帰ばね２５の
付勢力で元の位置に戻り、主軸チャック４から離れる。In this state, when the seating switching valve 27 is turned on, the fluid supply member 22 is moved to the main spindle chuck 4 side by air pressure and fitted into the inlet 19 of the fluid passage 18 provided in the main spindle chuck 4. Contact the crowded state. Air is always supplied to the pipe 31 of the seating confirmation sensor 33, and when the fluid supply member 22 contacts as described above, the receiving port 24 of the fluid supply member 22 and the connection port 30 of the detection device body 15a communicate with each other. Then, the air flows in the fluid supply member 22, and the pressure acts on the nozzle 17 in the seating locator 13. If the work W is properly seated on the seating surface 13b of the seating locator 13, there is no air leakage, the back pressure is maintained at a predetermined pressure or higher, and the sensor 33 is maintained in the on state, so that the seating is confirmed. It In the case of poor seating, the back pressure decreases, so the sensor 33 is turned off, and it can be seen that seating is poor. After this seating confirmation, seating switching valve 2
When 7 is turned off, the fluid supply member 22 returns to its original position by the urging force of the return spring 25, and separates from the spindle chuck 4.
【００１４】このワーク着座検出装置によると、このよ
うに、着座不良のときのみセンサ３３がオフすること
で、着座不良が確認される。すなわち、常時は接続口３
０は流体供給部材２２で閉じられていて、配管３１の圧
力は所定圧以上に維持されており、センサ３３はオンの
状態を維持する。着座検出のために流体供給部材２２を
進出させたときも、ワークＷが適正に着座しておれば、
供給エアは流体通路１８内に流れるだけでそれ以上は漏
れず、センサ３３のオン状態が維持される。このよう
に、着座不良の場合のみセンタ３３がオフとなることで
着座不良が検出されるため、誤検知を少なくできる。ま
た、流体供給部材２２の移動とは別に経路接続の制御を
行う手段を設けることが不要で、制御が簡単になる。ま
た、主軸チャック４を回転させるときは、流体供給部材
２２を主軸チャック４から離すため、流体供給部材２２
やセンサ３３等が主軸チャック４の回転負荷とならず、
機械への負担が軽減される。また、流体供給部材２２や
センサ３３は固定設置されるものであり、主軸チャック
４には流体通路１８を設けるだけで良いため、主軸３内
に各種の部品、例えばクーラントスルー機構のクーラン
ト配管５等を設ける場合の障害とならない。According to this work seating detection device, the seating failure is confirmed by turning off the sensor 33 only when the seating failure occurs. That is, the connection port 3 is always
0 is closed by the fluid supply member 22, the pressure of the pipe 31 is maintained at a predetermined pressure or higher, and the sensor 33 maintains the ON state. Even when the fluid supply member 22 is advanced for seating detection, if the work W is properly seated,
The supply air only flows into the fluid passage 18 and does not leak any more, and the sensor 33 is maintained in the ON state. As described above, since the center 33 is turned off only in the case of the poor seating, the poor seating is detected, so that the false detection can be reduced. Further, it is not necessary to provide a means for controlling the path connection separately from the movement of the fluid supply member 22, and the control is simplified. Further, when the spindle chuck 4 is rotated, the fluid supply member 22 is separated from the spindle chuck 4, so that the fluid supply member 22
And the sensor 33, etc. do not become the rotational load of the spindle chuck 4,
The load on the machine is reduced. Further, since the fluid supply member 22 and the sensor 33 are fixedly installed and only the fluid passage 18 needs to be provided in the spindle chuck 4, various components such as the coolant pipe 5 of the coolant through mechanism are provided in the spindle 3. It does not become an obstacle when setting up.
【００１５】[0015]
【発明の効果】この発明の主軸チャックのワーク着座検
出装置は、主軸チャックの近傍に着座検出装置を固定配
置し、前記主軸チャックはワークチャック面へ通じる流
体通路を有し、前記着座検出装置は前記流体通路の入口
に対して進退して接離自在な流体供給部材を備えるもの
としたため、主軸内にクーラントスルー機構等の部品を
配置する障害とならず、また主軸の回転負荷の増大を回
避することができる。このワーク着座検出装置におい
て、主軸チャックの流体通路の入口が、前記固定配置の
着座検出装置に設けられた流体供給部材に対向するよう
に、前記主軸チャックの回転停止角度を制御する手段を
設けた場合は、確実な着座検出が行える。また、前記流
体供給部材をピストンで構成し、このピストンの軸方向
の中間部に、流体供給源の接続口から検出流体を受け入
れる受入口を形成し、前記流体供給部材が前記流体通路
の入口に接合された状態でのみ、前記接続口と前記受入
口とが連通するように構成した場合は、流体圧を常に供
給することで、着座不良の場合のみ、センサをオフにす
ることができ、誤検知を少なくすることができる。しか
も制御が簡単になる。According to the present invention, there is provided a work piece seating detection device for a spindle chuck in which a seating detection device is fixedly arranged in the vicinity of the spindle chuck, and the main body chuck has a fluid passage communicating with a work chuck surface. Since a fluid supply member that can move forward and backward with respect to the inlet of the fluid passage is provided, it does not become an obstacle for arranging parts such as a coolant through mechanism in the spindle, and avoids an increase in the rotational load of the spindle. can do. In this workpiece seating detection device, means for controlling the rotation stop angle of the spindle chuck is provided so that the inlet of the fluid passage of the spindle chuck faces the fluid supply member provided in the seating detector of the fixed arrangement. In this case, seating can be detected reliably. Further, the fluid supply member is composed of a piston, and a receiving port for receiving the detection fluid from the connection port of the fluid supply source is formed at an intermediate portion in the axial direction of the piston, and the fluid supply member is provided at the inlet of the fluid passage. When the connection port and the receiving port are configured to communicate with each other only in the joined state, the fluid pressure is constantly supplied, so that the sensor can be turned off only in the case of poor seating. Detection can be reduced. Moreover, control becomes simple.
【図１】（Ａ）はこの発明の一実施形態にかかるワーク
着座検出装置の断面図とブロック図とを組み合わせた説
明図、（Ｂ）は同図（Ａ）をＢ−Ｂ方向に見た矢視図で
ある。FIG. 1A is an explanatory view in which a sectional view and a block diagram of a work seating detection device according to an embodiment of the present invention are combined, and FIG. 1B is a view of FIG. 1A taken along line BB. FIG.
【図２】（Ａ）は同ワーク着座検出装置を装備した旋盤
の主軸装置の破断正面図、（Ｂ）はその側面図である。FIG. 2A is a cutaway front view of a spindle device of a lathe equipped with the work seating detection device, and FIG. 2B is a side view thereof.
１…主軸台 ３…主軸 ４…主軸チャック ５…クーラント配管 ８…主軸モータ １０…回転検出器 １１…停止角度制御手段 １３…着座ロケータ １３ｂ…ワーク着座面 １５…着座検出装置 １６…取付台 １７…ノズル １８…流体通路 １９…入口 ２１…流体圧シリンダ ２２…流体供給部材 ２４…受入口 ２７…着座切換バルブ ２８…流体供給源 ３０…接続口 ３２…流体供給源 ３３…センサ Ｗ…ワーク 1… Headstock 3 ... Spindle 4 ... Spindle chuck 5 ... Coolant piping 8 ... Spindle motor 10 ... Rotation detector 11 ... Stop angle control means 13 ... sitting locator 13b ... Work seating surface 15 ... Seating detection device 16 ... Mounting table 17 ... Nozzle 18 ... Fluid passage 19 ... Entrance 21 ... Fluid pressure cylinder 22 ... Fluid supply member 24 ... Entrance 27 ... Seat switching valve 28 ... Fluid supply source 30 ... Connection port 32 ... Fluid supply source 33 ... Sensor W ... work
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B23Q 17/00 B23Q 3/06 B23B 31/00 ─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. 7 , DB name) B23Q 17/00 B23Q 3/06 B23B 31/00
Claims (3)
軸チャックの近傍に固定配置された着座検出装置とを備
え、前記主軸チャックは、半径方向に同期移動してワー
クの周面を把持する複数のチャック爪と、ワークの端面
を接触させる位置決め部材である着座ロケータとを有
し、かつ前記主軸チャックは、前記着座ロケータのワー
ク着座面に設けられたノズルへ通じる流体通路を有し、
前記ノズルはワーク把持状態で前記チャック爪よりも主
軸中心側にあり、前記着座検出装置は、前記流体通路の
入口に対して進退して接離自在な流体供給部材と、この
流体供給部材から供給される検出流体の背圧を検出する
センサとを有し、前記主軸チャックの流体通路の入口
が、前記固定配置の着座検出装置に設けられた流体供給
部材に対向するように、前記主軸チャックの回転停止角
度を制御する手段を設けた主軸チャックのワーク着座検
出装置。1. A plurality of spindle chucks that are driven to rotate, and a seating detection device that is fixedly arranged in the vicinity of the spindle chucks, wherein the spindle chucks move in synchronization in a radial direction and grip a peripheral surface of a workpiece. A chuck claw, and a seating locator that is a positioning member that contacts the end surface of the work, and the spindle chuck has a fluid passage leading to a nozzle provided on the work seating surface of the seating locator,
The nozzle is located closer to the center of the main shaft than the chuck claw in the state of gripping a workpiece, and the seating detection device supplies a fluid supply member that can move forward and backward toward and away from the inlet of the fluid passage, and the fluid supply member. It has a sensor for detecting the back pressure of the detection fluid, the inlet of the fluid passage of the spindle chuck
Is a fluid supply provided in the seating detection device of the fixed arrangement.
Rotation stop angle of the spindle chuck so as to face the member
Workpiece seating detection device for a spindle chuck with a means for controlling the degree of rotation.
れ、このピストンの軸方向の中間部に、流体供給源側の
接続口から検出流体を受け入れる受入口が形成され、前
記流体供給部材が前記流体通路の入口に接合された状態
でのみ、前記接続口と前記受入口とが連通するように構
成された請求項１記載の主軸チャックのワーク着座検出
装置。2. The fluid supply member is composed of a piston, and a receiving port for receiving a detection fluid from a connection port on the fluid supply source side is formed at an axially intermediate portion of the piston, and the fluid supply member is the fluid. only in a state of being joined to the inlet of the passage, the connecting port and the receiving port and a work seating detection apparatus according to claim 1 Symbol mounting of the spindle chuck is configured to communicate.
軸チャックの近傍に固定配置された着座検出装置とを備
え、前記主軸チャックは、半径方向に同期移動してワー
クの周面を把持する複数のチャック爪と、ワークの端面
を接触させる位置決め部材である着座ロケータとを有
し、かつ前記主軸チャックは、前記着座ロケータのワー
ク着座面に設けられたノズルへ通じる流体通路を有し、
前記ノズルはワーク把持状態で前記チャック爪よりも主
軸中心側にあり、前記着座検出装置は、前記流体通路の
入口に対して進退して接離自在な流体供給部材と、この
流体供給部材から供給される検出流体の背圧を検出する
センサとを有し、前記流体供給部材がピストンで構成さ
れ、このピストンの軸方向の中間部に、流体供給源側の
接続口から検出流体を受け入れる受入口が形成され、前
記流体供給部材が前記流体通路の入口に接合された状態
でのみ、前記接続口と前記受入口とが連通するように構
成された主軸チャックのワーク着座検出装置。3. A spindle chuck that is rotationally driven, and a seating detection device that is fixedly arranged in the vicinity of the spindle chuck, wherein the spindle chuck moves in a radial direction in synchronization and holds a peripheral surface of a workpiece. Of the chuck claw and a seating locator which is a positioning member for contacting the end surface of the work, and the spindle chuck has a fluid passage leading to a nozzle provided on the work seating surface of the seating locator,
The nozzle is located closer to the center of the main shaft than the chuck claw in the state of gripping a workpiece, and the seating detection device supplies a fluid supply member that can move forward and backward toward and away from the inlet of the fluid passage, and the fluid supply member. back pressure have a sensor for detecting a, of configuration the fluid supply member is in the piston of the detecting fluid
The fluid supply source side
The receiving port is formed to receive the detection fluid from the connection port.
A state in which the fluid supply member is joined to the inlet of the fluid passage
Only in such a way that the connection port and the reception port communicate with each other.
Workpiece seating detection device for spindle chuck made .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13442496A JP3456341B2 (en) | 1996-04-30 | 1996-04-30 | Workpiece seating detector for spindle chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13442496A JP3456341B2 (en) | 1996-04-30 | 1996-04-30 | Workpiece seating detector for spindle chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09295248A JPH09295248A (en) | 1997-11-18 |
| JP3456341B2 true JP3456341B2 (en) | 2003-10-14 |
Family
ID=15128066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13442496A Expired - Fee Related JP3456341B2 (en) | 1996-04-30 | 1996-04-30 | Workpiece seating detector for spindle chuck |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3456341B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10232482B2 (en) | 2013-10-08 | 2019-03-19 | Fuji Corporation | Work seating detection device and adjustment method for same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3633489B2 (en) * | 2001-01-31 | 2005-03-30 | 日産自動車株式会社 | Locating device and body assembly device using locating device |
-
1996
- 1996-04-30 JP JP13442496A patent/JP3456341B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10232482B2 (en) | 2013-10-08 | 2019-03-19 | Fuji Corporation | Work seating detection device and adjustment method for same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09295248A (en) | 1997-11-18 |
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