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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