JPS5810404A - Automatic chuck nail replacer for working machine - Google Patents
Automatic chuck nail replacer for working machineInfo
- Publication number
- JPS5810404A JPS5810404A JP10748781A JP10748781A JPS5810404A JP S5810404 A JPS5810404 A JP S5810404A JP 10748781 A JP10748781 A JP 10748781A JP 10748781 A JP10748781 A JP 10748781A JP S5810404 A JPS5810404 A JP S5810404A
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- holder
- spindle axis
- nail
- support body
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/39—Jaw changers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
- B23B31/16233—Jaws movement actuated by oblique surfaces of a coaxial control rod
- B23B31/16237—Details of the jaws
- B23B31/16245—Fixation on the master jaw
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、加工物を把持する工作機械におけるチャック
の複数の爪を同時に自動で交換する装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that simultaneously and automatically replaces a plurality of jaws of a chuck in a machine tool that grips a workpiece.
特に多品種少量生産に伴い、加工物の形状が変わるごと
に加工精度を維持する為には、語形状に応じたチャノ4
りの爪に変更しなければならないが、現状では、これを
作業者が手作業で、その45 tel B(を工作物の
形状に合わせて耳切IgIJするがまたは他の爪と交換
することが多く行なわれている。爪の交換作業は、繁雑
であシ時間のががる作業であって自動化の要請が多かっ
た。また、工作機械における省力化や生産効率の向上さ
らには自動化生産システム等においても周辺機器等を含
めて総合的な観点での自動化要請が高まっている。すな
わち、ワークの自動交換装置やチャックトランスファー
や、よお、に2、。、。交、装装置、あ、要よヶっ冬−
るO
本発明は、前述の点に−みなされたもので、その目的と
するところはチャックの複数の爪を交換するのに、通常
は機械外部の退避位置にある交換装置に、次に1吏用す
る複数の爪をあらかじめ装着しておき、交換指令によっ
て前記交換装置は案内レール上に沿って主軸軸線上を横
切る方向に移動し機械内に搬入され主軸−1線と一致し
た位置で位置決めされた後、主軸軸線と平行に動作しチ
ャックに挿着された使用済みの爪と次に使用する交換装
置に挿着された爪を進退動作と反転機構により複数間同
時に交換し、使用済みの爪を交換装置に移し換え固定し
たまま元の退避位置まで戻るように構成した工作機械の
チャック爪自動交換装置を提供するにある。Particularly with high-mix, low-volume production, in order to maintain machining accuracy every time the shape of the workpiece changes, it is necessary to
However, currently, workers often manually cut the 45 tel B (edges) to match the shape of the workpiece, or replace them with other nails. Replacing jaws is a complicated and time-consuming task, and there have been many requests for automation.In addition, there are many demands for automation in machine tools, such as labor saving and production efficiency improvement, as well as automated production systems. There is also a growing demand for automation from a comprehensive perspective, including peripheral equipment, etc.In other words, automatic workpiece changers, chuck transfers, etc. Winter
The present invention has been made in view of the above-mentioned points, and its object is to replace a plurality of jaws of a chuck by attaching a replacement device, which is normally located in a retracted position outside the machine, to a replacement device, and then one A plurality of claws to be used are attached in advance, and in response to a replacement command, the replacement device is moved along the guide rail in a direction transverse to the spindle axis, carried into the machine, and positioned at a position that coincides with the spindle -1 line. After that, the used jaws inserted into the chuck operate parallel to the spindle axis, and the jaws inserted into the exchanger to be used next are exchanged at the same time using a forward/backward movement and reversal mechanism. To provide an automatic chuck jaw changing device for a machine tool configured so that the jaws can be transferred to the changing device and returned to the original retracted position while being fixed.
以下、本発明の一実施例を図面に基づいて詳細に説明す
る。第1図および第2図において、主軸台1上部に固定
されたベース2を介して、機外まで延架して固定設置さ
れたレール台乙に、懸吊した状態で交換装置4が移動可
能に取り付けられている。該レール台6は主軸6の軸線
方向とは直角な水平方向に延び、一端は床面に固設され
た支柱5に固着し、支持されている。主軸台1には一転
0T能に軸承された王@6が水平に内挿され、核上11
II6の前端部にはチャック7がボルトで固定されてい
る。従って、電動14i等と連結されて構成される主軸
6が回転することにより、チャック7に把持された加工
物Wは切削工具により成形される。Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. In Figures 1 and 2, the exchange device 4 is movable in a suspended state via a base 2 fixed to the upper part of the headstock 1, on a rail stand B which is fixedly installed and extends to the outside of the machine. is attached to. The rail stand 6 extends in a horizontal direction perpendicular to the axial direction of the main shaft 6, and one end is fixed to and supported by a support 5 fixed to the floor surface. In the headstock 1, a king @ 6 which is supported by a one-turn 0T function is horizontally inserted, and on the nucleus 11
A chuck 7 is fixed to the front end of II6 with a bolt. Therefore, by rotating the main shaft 6 connected to the electric motor 14i etc., the workpiece W gripped by the chuck 7 is shaped by the cutting tool.
前記レール台6は二つの案内面8A、8Bを付し、交換
装置4の移送体9の摺動面が案内1針V′=奇がって載
置されている。移送体9は、該案内面8A、8B上をレ
ール台6の一端に固定された駆動モータ10の回転で主
軸軸線を溝切る方向に移、すする。すなわち、該駆動モ
ータ1oに連結されたスクリュ11が、移送体9の裏部
に固着されたナツト12と螺合し回転することにより、
往復移動(矢印)する。従って、交換装置4は機械本#
−1則(機械内部)の交換位置と機械外部(退避位置)
との間の移動が可能となる。The rail stand 6 is provided with two guide surfaces 8A and 8B, and the sliding surface of the transfer body 9 of the changing device 4 is placed on one guide needle V'=oddly. The transfer body 9 is moved on the guide surfaces 8A and 8B in a direction that cuts the main shaft axis by the rotation of a drive motor 10 fixed to one end of the rail base 6. That is, when the screw 11 connected to the drive motor 1o screws into the nut 12 fixed to the back of the transfer body 9 and rotates,
Move back and forth (arrow). Therefore, the exchange device 4 is machine book #
- Replacement position according to rule 1 (inside the machine) and outside the machine (evacuation position)
It is possible to move between.
移送体9の下部には、懸吊された状態で支持体15の反
転機WItを内装した移動台16が設けられている。即
ち、該移送体9には、主軸6の軸線方向と平行に2つの
案内面14A、14Bが削設され、移動台16は該案内
面14A、14Bに沿つて進退自在に移動する(矢印)
。爪の交換時には、移動体9に固定されたシリンダー1
6゛の作動で、移動台16がチャックZ側へ移動し、チ
ャック7と支持体150対向面か接近したとき、複数の
爪を同時に受は渡しすることが可能となる。支持体15
の中心位置は、移送体9が機械内に持ち来たされた時、
主軸軸線と一致して位置決めされる。At the bottom of the transfer body 9, a movable table 16 is provided in which a reversing machine WIt for the support body 15 is installed in a suspended state. That is, two guide surfaces 14A and 14B are cut in the transfer body 9 in parallel to the axial direction of the main shaft 6, and the moving table 16 moves forward and backward along the guide surfaces 14A and 14B (arrow).
. When replacing the claw, the cylinder 1 fixed to the movable body 9
6, the moving table 16 moves toward the chuck Z side, and when the facing surfaces of the chuck 7 and the support body 150 approach each other, it becomes possible to transfer a plurality of jaws at the same time. Support body 15
The center position of is when the transport body 9 is brought into the machine,
Positioned in line with the spindle axis.
該支持体15は、移動台13の中央下方に設けられ、1
80度反転可能である。The support body 15 is provided below the center of the movable table 13, and
It can be rotated 80 degrees.
次に、該支持体15の反転機構について説明する。第3
図および第4図において、前記移動台13の下部壁面に
流体圧モータ17が固定されて取り付けられ、該流体圧
モータ17の軸にはピニオン18が回転力伝達可能に固
着されている。該ピニオン18は、中間I11]19の
ギヤ20を介して支持軸21のギヤ22と歯合し、流体
圧モータ17の駆動により支持軸21を回転させる。支
持l1II21は軸受で支承され下部にフランジ26を
固定している。支持体15は、該フランジ23と取付部
15aをボルトで固定することにより一体化され―−て
いる。また、移動台13に嵌入し固定されている受は部
材24の端面には、ストッパ部材25が固設され、前記
フランジ260半周にkって円周#23aが削設され、
該ストッパ部材25が移動可能に嵌入し前記流体圧モー
ター7により支持体15が回転すると、半周溝23aの
終端にストッパ部材25が当接し、回転を停止させる。Next, the reversing mechanism of the support body 15 will be explained. Third
In the figures and FIG. 4, a fluid pressure motor 17 is fixedly attached to the lower wall surface of the movable table 13, and a pinion 18 is fixed to the shaft of the fluid pressure motor 17 so as to be capable of transmitting rotational force. The pinion 18 meshes with the gear 22 of the support shaft 21 via the gear 20 of the intermediate I11] 19, and the support shaft 21 is rotated by the drive of the fluid pressure motor 17. The support l1II21 is supported by a bearing and has a flange 26 fixed to its lower part. The support body 15 is integrated by fixing the flange 23 and the mounting portion 15a with bolts. In addition, a stopper member 25 is fixedly installed on the end face of the member 24 of the receiver that is fitted and fixed to the movable table 13, and a circumference #23a is cut on the half circumference of the flange 260.
When the stopper member 25 is movably fitted and the support body 15 is rotated by the fluid pressure motor 7, the stopper member 25 comes into contact with the end of the semicircular groove 23a and stops the rotation.
即ち、該支持体15は180度の規制された回転となり
、爪の交換時における反転助作となる。In other words, the support 15 rotates within a regulated range of 180 degrees, which assists in reversing the pawl when replacing it.
続いて、支持体15内の把持1成および交換装置f4と
チャック7との受け2度し機構について説明する。第5
図は、交、lIi!!装置4の支持体15が主軸−
軸線力Iと平行に移動し、チャック7と当接し複数の爪
の受は渡し状態を示す。該主軸6と支持体15の中心軸
は一致し、該支持体15の把持部は、チャック7のそれ
ぞれの爪の位置に対向して設けられ、且つ放射状に等間
隔で設けられている。また、支持体15の把持部は両面
に同一の構成で設けられており、該構成により新旧の爪
が交換可能である。チャック7の爪角度位置は周仰の主
軸回動位置決め動作により、支持体15の把持部と一致
される。第5図および第6図において、本発明わち、主
軸台1に回転可能に軸承された主軸φの先端にはチャッ
ク本体26が嵌入し固定されている。また、主軸6後方
に設けられた駆動源(回路)により、作動杆27を主軸
軸線方向に進退動作(矢印)を行なわせ、該作動杆27
先端と固着しているシック28が案内穴26aに嵌入し
、該案内穴26aに沿って移動する。Next, the gripping mechanism in the support body 15 and the mechanism for receiving the exchanger f4 and the chuck 7 will be explained. Fifth
The figure is ko, lIi! ! The support body 15 of the device 4 moves parallel to the main axis-axis line force I and comes into contact with the chuck 7, and the supports of the plurality of jaws indicate a passing state. The central axes of the main shaft 6 and the support body 15 are aligned, and the gripping portions of the support body 15 are provided opposite to the positions of the respective claws of the chuck 7, and are provided radially at equal intervals. Furthermore, the gripping portions of the support body 15 are provided with the same configuration on both sides, and this configuration allows the old and new claws to be replaced. The angular position of the jaws of the chuck 7 is matched with the gripping portion of the support 15 by the circumferential and vertical rotational positioning of the main shaft. In FIGS. 5 and 6, according to the present invention, a chuck body 26 is fitted and fixed to the tip of the main shaft φ rotatably supported on the headstock 1. In FIG. In addition, a driving source (circuit) provided behind the main shaft 6 causes the operating rod 27 to move forward and backward (arrow) in the direction of the main shaft axis.
The chic 28 fixed to the tip fits into the guide hole 26a and moves along the guide hole 26a.
シフタ28の外周は等間隔に傾斜した複数のT形r42
8 aが削設されており、該T形溝28aはマスタジョ
ー29の案内溝29aに嵌入している。The outer circumference of the shifter 28 includes a plurality of T-shaped r42 inclined at equal intervals.
8a is cut, and the T-shaped groove 28a fits into the guide groove 29a of the master jaw 29.
従って、シック28が主軸後方(第5図左方)へ移動す
ると、マスタージョー29は径方向の玉軸軸心に向かっ
て前進し、該マスタクヨ−29に挿着し固定された保持
具30を介した複数の爪31は加工物を直接把持するO
またシック28が前方(aX5図右方)へ移動すれば、
マスタジョー29は拡開して加工物を離す。該マスタジ
ョー29には主軸軸線方向に対し直角方向に案内面29
b(第7図)を有しており、チャック本体26の溝に嵌
入して移動する。従って、マスタジョー29は主軸軸線
と直角な放射方向にのみ移動可能である。Therefore, when the chic 28 moves to the rear of the main shaft (to the left in FIG. 5), the master jaw 29 moves forward toward the ball axis axis in the radial direction, and the holder 30, which is inserted and fixed to the master jaw 29, is moved forward. The plurality of claws 31 directly grip the workpiece.
Also, if Sick 28 moves forward (to the right in Figure aX5),
Master jaws 29 expand to release the workpiece. The master jaw 29 has a guide surface 29 in a direction perpendicular to the axis of the main shaft.
b (FIG. 7), and moves by fitting into the groove of the chuck body 26. Therefore, the master jaw 29 is movable only in the radial direction perpendicular to the spindle axis.
複数の爪61はおのおの保持具30の取付溝30aに嵌
入し、ポルト31Aで固定されている。The plurality of claws 61 are each fitted into the mounting groove 30a of the holder 30 and fixed by the port 31A.
該保持具30はは嵌入部30bを有し、マスタジョー2
9の傾斜面29cに当接するまで嵌入する。The holder 30 has a fitting part 30b, and the master jaw 2
9 until it comes into contact with the inclined surface 29c.
傾斜面29cは、保持具60の挿着部がチャック本体2
6内でずれることのないよう受は部となっている。The inclined surface 29c is such that the insertion portion of the holder 60 is connected to the chuck body 2.
The uke is set in a sectional position so that it does not shift within 6.
次に、爪の挿着および離脱動作を行なう支持体15内の
把持構成について説明する。爪の着脱は、第1図で−す
ように、保持具30を介してシリンダー16の駆動によ
り支持体15を主軸軸線と平行に移動することで行なわ
れる。支持体15の把持部は、チャック本体26の複数
の爪31に一致するように等間隔に対向した位置に、前
記保持具30の端面を保持する保持面62を有している
。Next, the gripping structure within the support body 15 for inserting and removing the claws will be described. The attachment and detachment of the claws is carried out by moving the support body 15 parallel to the spindle axis by driving the cylinder 16 through the holder 30, as shown in FIG. The grip portion of the support body 15 has a holding surface 62 that holds the end surface of the holder 30 at positions facing the plurality of claws 31 of the chuck body 26 at equal intervals.
該保持面62は、保持J460を主・間軸線方向と平行
に前記マスタジョー29へ挿着する基準面となる。また
、保持面62には保持具30の嵌入位置を位置決めする
テーパ状のピン36が離れた位置で2箇所に設けられて
いる。ピン66は保持具60に設けられた穴30dの斜
面に一致して嵌入する(第8図)。さらに、保持面62
の中央部逃げ而32aには、支持体15の中心軸に対し
直角方向放射状に複数のシリンダ34が固定されている
。該シリンダ64のロッド34a先端は、傾斜面54b
を有し、前記保持具30の斜面30cと一致して当接可
能である。従って、保持具30は前記2つのピン36で
位置決めされたのち、シリンダ34が作動すれば、傾斜
面34bと斜面60Cが当接し、保持具30は保持面3
2に密着される。すなわち、傾斜面34bは保持面32
に対し直角方向の分力が作用し、該保持具ろ0は正確に
密着される。さらに、ロッド34aの後端部にはドッグ
35が取り付けられており、検出器66で作動の確認を
する。The holding surface 62 serves as a reference surface for inserting the holding J460 into the master jaw 29 parallel to the main/interval axis direction. Further, tapered pins 36 for determining the insertion position of the holder 30 are provided at two separate locations on the holding surface 62. The pin 66 is fitted into the hole 30d provided in the holder 60 in alignment with the slope of the hole 30d (FIG. 8). Furthermore, the holding surface 62
A plurality of cylinders 34 are fixed to the central recess 32a in a radial direction perpendicular to the central axis of the support body 15. The tip of the rod 34a of the cylinder 64 has an inclined surface 54b.
and can be brought into contact with the slope 30c of the holder 30. Therefore, after the holder 30 is positioned by the two pins 36, when the cylinder 34 is operated, the inclined surface 34b and the inclined surface 60C come into contact, and the holder 30 is moved to the holding surface 36.
Closely followed by 2. That is, the inclined surface 34b is the holding surface 32
A component force in a direction perpendicular to the retainer 0 is applied, and the holder 0 is brought into close contact with the retainer 0. Further, a dog 35 is attached to the rear end of the rod 34a, and a detector 66 is used to confirm the operation.
保持具60の内部は、係合片137がピン38を支点に
して揺動可能に設けられ、また該ピン38が受台69に
嵌合している。該受台39は、保持具30にボルトで固
定されている。係合片67は、マスタジョー29の端面
に固定された係止片40に、バネ41で付勢されて前記
係合片37の爪部37aが係合している。該係合片37
と係止片40の係合により、保持具60は主軸軸線方向
の位置が規制される。また、保持具30の欲入部30b
が傾斜面29cに当接しているので半径方向も位置が規
制され、マスタジョー29に固定された状憧となる。第
5図は、交換装置4の動作により、保持具30がマスタ
ジョー29に固定された状態を示す。該保合片37の他
方の面には、当て部67bを有し、支持体15内に設け
られたシリンダ42の中心軸線と一致している。爪の着
脱動作の際には、シリンダ42が作動しロッド43の先
端、!i。Inside the holder 60, an engaging piece 137 is provided so as to be swingable about a pin 38, and the pin 38 is fitted into a pedestal 69. The pedestal 39 is fixed to the holder 30 with bolts. The engagement piece 67 is biased by a spring 41 and the claw portion 37a of the engagement piece 37 engages with the engagement piece 40 fixed to the end face of the master jaw 29. The engagement piece 37
By the engagement of the locking piece 40 with the locking piece 40, the position of the holder 60 in the axial direction of the main shaft is restricted. Moreover, the greedy portion 30b of the holder 30
Since it is in contact with the inclined surface 29c, its position is also restricted in the radial direction, and it appears to be fixed to the master jaw 29. FIG. 5 shows a state in which the holder 30 is fixed to the master jaw 29 by the operation of the exchanger 4. As shown in FIG. The other surface of the retaining piece 37 has a contact portion 67b, which coincides with the central axis of the cylinder 42 provided within the support body 15. When attaching and detaching the claw, the cylinder 42 operates and the tip of the rod 43,! i.
が当て部37bを押し、ピン38を支Iに係合片上
37がばね力に抗して回動し、係2片40の爪部から外
れる。従って、保持具30を主軸軸線方向と平行に硬着
あるいは離脱動作を行なうことが可能となる。(ラド4
6の後端部はドッグ44が取シ付けられ、検出器45に
より動作の確認をとる。presses the abutment part 37b, and the upper engagement piece 37 rotates against the spring force using the pin 38 as the support I, and is removed from the claw part of the second engagement piece 40. Therefore, it is possible to firmly attach or detach the holder 30 in parallel to the axis of the main shaft. (Rad 4
A dog 44 is attached to the rear end of 6, and the operation is confirmed by a detector 45.
本発明は以上のように構成され、次のような動作が行な
われる。すなわち、チャック本体26のマスタジョー2
9に爪を挿着するところから爪の自助交換サイクルが始
動する。この時、刃物台(回路)は干渉を避けるため爪
の交換動作範囲外まで移動し、交換装置4は移送体9の
移動により、機械外方で退避している。従って、作業者
は加工中に次に使用される複数の爪46を、チャック7
側の反対の面に取り付は可能である(第2図)。The present invention is configured as described above, and operates as follows. That is, the master jaw 2 of the chuck body 26
The self-help replacement cycle of the nail starts when the nail is inserted into the nail. At this time, the turret (circuit) is moved out of the range of claw exchange operation to avoid interference, and the exchange device 4 is retracted outside the machine due to the movement of the transfer body 9. Therefore, the operator must move the plurality of jaws 46 that will be used next during processing to the chuck 7.
It is possible to attach it to the opposite side (Fig. 2).
チャック本体26内の7フタ28は、主軸6後方に設け
られた駆動源により前方へ4動じ、前進端で停止する(
第5図の状態)。すなわち、マスタジョー29は半径方
向に拡開された状態にあり、この状態は爪の挿着位置と
なる。さらに、主軸6は従来構成にあるポジショニング
装置(図示せず)により回動し、支持体15の保持面6
2と一致した位置にマスタジョー29が持ち来たされ、
位置決めされる。The seven lids 28 inside the chuck body 26 move forward four times by a drive source provided behind the main shaft 6 and stop at the forward end (
(Situation shown in Figure 5). That is, the master jaws 29 are in a radially expanded state, and this state is the claw insertion position. Further, the main shaft 6 is rotated by a positioning device (not shown) in a conventional configuration, and the holding surface 6 of the support 15 is rotated.
The master jaw 29 was brought to the position corresponding to 2,
Positioned.
交換指令により、交換装置4の移送体9は駆動モータ1
0により、王II@軸線を横切る方向に退避位置から機
械内へ移動し、支持体15の中心軸がチャック7の中心
軸と一致するまで移動して位置決め停止される。この時
、支持体15は反転動作をしてもチャック7との干渉の
ない位itで離れている。続いて、チャックZ側へ移動
台13を移動させ、支持体15の保持面32は、チャツ
ク7前面にあるマスタジョー29に挿着された保持具6
0の端面に当接するまで移動する。該保持具30には、
すでに使用された爪31がポル)3tAで固定されてい
る。また、保持具30の妖入部60bはマスタジョー2
9の傾斜面29cに当接して嵌入しているので、径方向
の位置は規制されている。さらに、係合片37はバネ4
1の付勢力により、係止片40と係合し主軸軸線方向の
位置が規制されている。従って、爪31は保持具60を
介してマスタジョー29に固定された状態となっている
。保持具60の穴30dは、マスタジョ一端部に4着し
た2つの位置決めピン48に嵌入し正確に位置決めされ
ており、さらに支持体15の当接により2つのピン66
で保持具60と保持面32の位置が決められる。In response to the exchange command, the transfer body 9 of the exchange device 4 moves the drive motor 1
0, it moves from the retracted position into the machine in a direction crossing the King II axis, moves until the center axis of the support body 15 coincides with the center axis of the chuck 7, and then stops at the position. At this time, the support body 15 is separated from the chuck 7 by a distance such that it does not interfere with the chuck 7 even if the support body 15 performs a reversal operation. Subsequently, the moving table 13 is moved to the chuck Z side, and the holding surface 32 of the support body 15 is attached to the holder 6 inserted into the master jaw 29 on the front surface of the chuck 7.
Move until it touches the end face of 0. The holder 30 includes:
The claw 31 that has already been used is fixed with 3tA. Further, the insertion part 60b of the holder 30 is connected to the master jaw 2.
9, the radial position is restricted. Furthermore, the engagement piece 37 is connected to the spring 4
1 engages with the locking piece 40 and restricts the position in the spindle axis direction. Therefore, the claw 31 is fixed to the master jaw 29 via the holder 60. The hole 30d of the holder 60 is accurately positioned by fitting two positioning pins 48 attached to one end of the master jaw.
The positions of the holder 60 and the holding surface 32 are determined.
次に、シリンダ64が作動し保持具30の斜面30cに
ロッド34aの傾斜1fi34bが当接し、該保持具6
0を保持面62に固定する。さらに、シリンダ42が主
軸軸線方向と平行に作動し、ロッド46先端が保持具3
0内の当て部37bを押し、ピン38を支点に係合片6
7がばね41の付勢力に抗して回動し、前記係止片40
との係合が解かれる。以上に、述べた支持体15の杷持
部の動作により、保持A30.は主軸・咄婦方向と平行
な位置で複aIrIA同時に、チャック7から支持体1
5への受は渡し動作が可能となる。Next, the cylinder 64 is actuated and the slope 1fi34b of the rod 34a comes into contact with the slope 30c of the holder 30, and the holder 6
0 is fixed to the holding surface 62. Furthermore, the cylinder 42 operates parallel to the axis of the main shaft, and the tip of the rod 46 is connected to the holder 3.
0, press the contact part 37b in
7 rotates against the biasing force of the spring 41, and the locking piece 40
The engagement with is released. As described above, due to the operation of the holding portion of the support body 15, the holding A30. At the same time, multiple aIrIAs are transferred from the chuck 7 to the support 1 at a position parallel to the main axis and the female direction.
Receipt to 5 enables a passing operation.
シリンダ16が後退(第1図右方)して、爪31ととも
に保持具60をチャック7から引き出し移動台1ろは後
退端まで移動する。従って使用済みの複数の爪31は、
支持体15のチャック71ullの保持面32に保持さ
れたままとなっている。The cylinder 16 is moved backward (to the right in FIG. 1), and the holder 60 is pulled out from the chuck 7 together with the claw 31, and the moving table 1 is moved to the backward end. Therefore, the plurality of used nails 31 are
It remains held by the holding surface 32 of the chuck 71ull of the support body 15.
続いて、すでに支持体15の対向面に取りけけられてい
る次に使用される複数の爪46が保持具30とともに、
チャックZ側へ180度反転される。すなわち、流体圧
モータ17が駆動されピニオン18が回転し、中間ギヤ
20を介して支持軸21のギヤ22が回転するので、支
持体15は反転する。前記メトツバ部材25は、半周溝
23aの一方の終端から他方の終端へ移動して当接する
ので、該支持体15は180度の反転動作となる5、該
支持体15の反転動作により、次に1吏用される複数の
爪46がチャック7と対向した位置に持ち来たされ、シ
リンダ16の作動で前述した爪の離脱動作とは逆の動作
を行なう。すなわち、移動台13の移動で保持具50が
保持面32に固定されたまま主軸軸線と平行にマスタジ
ョー29に嵌入される。この時、前記2つのピン33で
保持具30の位置を規制し、7リンダ64が作動し斜面
30cにロッド34aの傾斜面34bが当接し保持具6
0を固定している。また、シリンダ42が作動し、係合
片37と係止片40との係合関係を解く。Subsequently, a plurality of claws 46 to be used next, which have already been attached to the opposing surface of the support body 15, are attached together with the holder 30.
It is flipped 180 degrees to the chuck Z side. That is, the fluid pressure motor 17 is driven, the pinion 18 is rotated, and the gear 22 of the support shaft 21 is rotated via the intermediate gear 20, so that the support body 15 is reversed. Since the flange member 25 moves from one end of the semicircular groove 23a to the other end and comes into contact with it, the support 15 undergoes a 180 degree reversal action5.The reversal action of the support member 15 causes A plurality of claws 46 to be used in one operation are brought to a position facing the chuck 7, and the operation of the cylinder 16 performs an operation opposite to the above-described detachment operation of the claws. That is, by moving the movable table 13, the holder 50 is fitted into the master jaw 29 in parallel to the spindle axis while being fixed to the holding surface 32. At this time, the position of the holder 30 is regulated by the two pins 33, the 7 cylinder 64 is operated, and the inclined surface 34b of the rod 34a comes into contact with the inclined surface 30c, causing the holder 30 to
It is fixed at 0. Further, the cylinder 42 is activated, and the engagement between the engagement piece 37 and the locking piece 40 is released.
次に使用される複数の爪46がマスタジョー29に挿着
され−た後、シリンダ64および42が作動し保持具6
0との当接状態を解き、支持体15とチャック7との保
合位置関係はなくなり、シリンダ16の作動で移動台1
6が後退し終端まで移動する。すなわち、使用済みの爪
61は支持体15に保持され、次に使用される爪はチャ
ック7に挿着され、交換装置4により爪の交換を終え第
1図に示される状態となる0続いて、駆動モータ10が
回転しレール台6上を移送体9が移動し、交換装置4は
機械内から退避位置である機械外方の終端位+fまで移
動する。After the plurality of pawls 46 to be used next are inserted into the master jaw 29, the cylinders 64 and 42 are activated and the retainer 6
0 is released, the retaining positional relationship between the support body 15 and the chuck 7 is eliminated, and the moving table 1 is moved by the operation of the cylinder 16.
6 moves backward and moves to the end. That is, the used pawl 61 is held on the support 15, the pawl to be used next is inserted into the chuck 7, and the pawl is replaced by the exchanging device 4, resulting in the state shown in FIG. , the drive motor 10 rotates, the transfer body 9 moves on the rail stand 6, and the exchange device 4 moves from inside the machine to a terminal position +f outside the machine, which is a retracted position.
爪の自動・挿着サイクルが完了し、主軸6はボジショニ
ングが解かれ、爪は加工物を把持し加工が開始される。The automatic/insertion cycle of the jaws is completed, the spindle 6 is released from positioning, the jaws grip the workpiece, and machining begins.
本発明によると、従来作業者が行なっていた爪の交換を
自動で行なうこととなり、また複数の爪を移動台・によ
り主軸軸線方向へ同時に引き出し、Δコニ−の反転機構
によって使用された爪と次に使用される爪を自動で交換
し、カロエ中味交換装置を機械外部の退避位置にあるよ
うにしたので、繁雑な作業を簡素な構成でしかも迅速に
行なうことが可能となった。従って、昨今の自動化・省
力化さらには生産システム化にも有効に寄与する′こと
となった。また、交換装置の退避位置が機械外部にある
ので、次に使用される爪を加工中でも取り付けることが
でき、段取り時間の削減が可能で、さらに作業者の作業
がし易く、安全対敵上好ましい構成である。According to the present invention, the replacement of the claws, which was previously done by an operator, can be done automatically, and a plurality of claws can be simultaneously pulled out in the direction of the spindle axis by a moving table, and the claws used can be replaced by the reversing mechanism of the Δcony. The next claw to be used is automatically replaced, and the Kaloe contents replacement device is placed in a retracted position outside the machine, making it possible to perform complicated work quickly with a simple configuration. Therefore, it has effectively contributed to recent automation, labor saving, and production systemization. In addition, since the retracting position of the replacement device is outside the machine, the next claw to be used can be attached during processing, reducing setup time, making it easier for the operator to work, and being favorable from a safety standpoint. It is the composition.
以上に述べた如く、本発明は実施例に示された構成に限
定されるものではなく、請求の範囲に記載された本発明
の技術思想を逸脱しない範囲内での変更は予期されると
ころである。As stated above, the present invention is not limited to the configurations shown in the examples, and modifications are expected without departing from the technical idea of the present invention as described in the claims. .
第1図は本発明一実施例による交換装置の全体側面図で
第2図のI−1線断面図、第2図は交換装置の全体側面
図、第6図は支持体の反転機構を示す拡大正面断面図、
第4図は第6図の1+−1を線断面図、第5図はチャッ
クと支持体における爪の受は渡し動作を説明する拡大断
面図、第6図は爪の把持部を示す要部拡大断面図、第7
図は第6図の■矢視図、第8図は保持具の位置決め状態
を示す断面図、第9図は第6図の1■矢矢視面図0図に
おいて
1・・・主軸台 6・・・レール台 4・・・交換袋、
t 7・・・チャック 9・・・移送体 16・・・
移動台 15・・・支持体 16.34.42・・・シ
リンダ 17・・・流体圧モータ 29・・・マスタジ
ョー゛ 60・・・保持具61.46・・・爪 62・
・・保持面 66・・・ピン 67・・・係合片 40
・・・係止片 48・・・位置決めピン出願人 日立精
機株式会社
給1図
8Δ
第9図
第7図FIG. 1 is an overall side view of an exchange device according to an embodiment of the present invention, and a sectional view taken along the line I-1 in FIG. 2. FIG. 2 is an overall side view of the exchange device, and FIG. Enlarged front sectional view,
Fig. 4 is a sectional view taken along the line 1+-1 in Fig. 6, Fig. 5 is an enlarged sectional view illustrating the transfer operation of the jaws on the chuck and support, and Fig. 6 is the main part showing the gripping part of the claws. Enlarged sectional view, No. 7
The figure is a view from the ■ arrow in FIG. 6, FIG. 8 is a sectional view showing the positioning state of the holder, and FIG. 9 is a view from the 1■ arrow in FIG. 6. ...Rail stand 4...Replacement bag,
t 7...Chuck 9...Transfer body 16...
Moving table 15...Support body 16.34.42...Cylinder 17...Fluid pressure motor 29...Master jaw 60...Holder 61.46...Claw 62.
...Holding surface 66...Pin 67...Engagement piece 40
... Locking piece 48 ... Locating pin Applicant: Hitachi Seiki Co., Ltd. Figure 1 Figure 8Δ Figure 9 Figure 7
Claims (1)
付けられ加工物を把持可能に複数の爪を挿着してなるチ
ャックと、前記主軸台上に主軸軸線を横切る方向に移動
する第1の移動体と、該第1の移動体に主軸軸線と平行
に進退移動可能に設けられた第2の移動体と、該第2の
移動体に装架され前記チャックに保持された複数の爪を
相互に交換可能に且つ我慢反転動作をする交換装置と、
前記爪を固定し前記チャックまたは交換装置に係止可能
な保持具と、該保持具をチャックとの間で保合離脱可能
に動作すべく設けられた係合手段と、該係合手段により
解放された前記保持具を交換装置に持ち来たし固定すべ
く交換装置に設けられた把持装置とからなる工作機械の
チャック爪自動交換装置。a chuck, which is attached to a main spindle rotatably supported on the headstock of a machine tool and has a plurality of jaws inserted therein so as to be able to grip a workpiece; and a first chuck, which moves in a direction transverse to the spindle axis on the headstock a second movable body provided on the first movable body so as to be movable forward and backward parallel to the spindle axis; and a plurality of claws mounted on the second movable body and held by the chuck. an exchange device capable of mutually exchanging and performing a reversal operation;
a holder capable of fixing the claw and being latched to the chuck or exchange device; an engaging means provided to allow the holder to be engaged with and detached from the chuck; and a holder capable of being released by the engaging means. An automatic chuck jaw changing device for a machine tool, which comprises a gripping device provided on the changing device to bring and fix the holder to the changing device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10748781A JPS5810404A (en) | 1981-07-09 | 1981-07-09 | Automatic chuck nail replacer for working machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10748781A JPS5810404A (en) | 1981-07-09 | 1981-07-09 | Automatic chuck nail replacer for working machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5810404A true JPS5810404A (en) | 1983-01-21 |
JPS6319284B2 JPS6319284B2 (en) | 1988-04-22 |
Family
ID=14460455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10748781A Granted JPS5810404A (en) | 1981-07-09 | 1981-07-09 | Automatic chuck nail replacer for working machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5810404A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58102605A (en) * | 1981-12-05 | 1983-06-18 | Yamazaki Mazak Corp | Chuck claw automatic replacement device |
JPS61164703A (en) * | 1985-01-11 | 1986-07-25 | Mitsubishi Heavy Ind Ltd | Automatic liner exchanging device for chucking unit of lathe |
US5254068A (en) * | 1990-08-17 | 1993-10-19 | Yamazaki Mazak Kabushiki Kaisha | Automatic setup apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5418429A (en) * | 1977-07-12 | 1979-02-10 | Kazuo Iwawaki | Method of making heat insulating material for molten iron consisting essentially of chaff smoked charcoal |
-
1981
- 1981-07-09 JP JP10748781A patent/JPS5810404A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5418429A (en) * | 1977-07-12 | 1979-02-10 | Kazuo Iwawaki | Method of making heat insulating material for molten iron consisting essentially of chaff smoked charcoal |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58102605A (en) * | 1981-12-05 | 1983-06-18 | Yamazaki Mazak Corp | Chuck claw automatic replacement device |
JPH0215323B2 (en) * | 1981-12-05 | 1990-04-11 | Yamazaki Mazak Corp | |
JPS61164703A (en) * | 1985-01-11 | 1986-07-25 | Mitsubishi Heavy Ind Ltd | Automatic liner exchanging device for chucking unit of lathe |
JPH05161B2 (en) * | 1985-01-11 | 1993-01-05 | Mitsubishi Heavy Ind Ltd | |
US5254068A (en) * | 1990-08-17 | 1993-10-19 | Yamazaki Mazak Kabushiki Kaisha | Automatic setup apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6319284B2 (en) | 1988-04-22 |
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