JPS58165943A - Replacement arm device in tool replacing device of machine tool - Google Patents
Replacement arm device in tool replacing device of machine toolInfo
- Publication number
- JPS58165943A JPS58165943A JP57048506A JP4850682A JPS58165943A JP S58165943 A JPS58165943 A JP S58165943A JP 57048506 A JP57048506 A JP 57048506A JP 4850682 A JP4850682 A JP 4850682A JP S58165943 A JPS58165943 A JP S58165943A
- Authority
- JP
- Japan
- Prior art keywords
- tool
- gear
- standby
- replacement
- hook
- 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
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
- B23Q2003/155414—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers
- B23Q2003/155418—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers the grippers moving together
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
- B23Q2003/155414—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers
- B23Q2003/155425—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable
- B23Q2003/155428—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable about a common axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/1554—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore
- B23Q2003/155414—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers
- B23Q2003/155425—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable
- B23Q2003/155435—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable and linearly movable
- B23Q2003/155439—Transfer mechanisms, e.g. tool gripping arms; Drive mechanisms therefore the transfer mechanism comprising two or more grippers pivotable and linearly movable along the pivoting axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は工作機械の工具交換装置における交換アーム
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an exchange arm device in a tool exchange device for a machine tool.
従来、両端に工具グリップ部を有する交換アームによっ
て、工作機被主軸と交換工具保持部とにそれぞれ保持さ
れている工具を交換する工作機械の工具交換装置は、例
えば特公昭５１−３１３９５号によって提案されている
。Conventionally, a tool changer for a machine tool in which tools held in a machine tool spindle and a change tool holding part are exchanged using a change arm having a tool grip part at both ends, respectively, has been proposed, for example, in Japanese Patent Publication No. 51-31395. has been done.
しかしながら、上記従来装置においては、交換アームを
、交換アーム待機位置から工作機械主軸と交換工具保持
部にそれぞれ保持されている工具を把持し得る位置に旋
回させるとともに、この位置から上記待機位置に旋回復
帰させるために交換アームを９０＠旋図させる旋回Ｆ
リンダと、工作機械の主軸から抜き取られて交換アーム
の一端部に把持されている工具と交換工具保持部から抜
き取られて交換アームの他端部に把持されている工具の
位置を、互いに変換させるために交換アームを１８０１
旋回させる旋回用ｙｙングとの２個の旋回用Ｖリンダを
設け、これら両シリンダのピストンロッドに相当する部
分にラックを形成し、このフックを待機用歯車と交換用
歯車とに噛合させて駆動するように構成している。However, in the above conventional device, the exchange arm is rotated from the exchange arm standby position to a position where it can grasp the tools held in the machine tool spindle and the exchange tool holder, respectively, and from this position to the standby position. Turn F to rotate the replacement arm 90＠ to return it.
The positions of the cylinder, the tool extracted from the main shaft of the machine tool and held at one end of the exchange arm, and the tool extracted from the exchange tool holder and held at the other end of the exchange arm are mutually converted. Replace arm for 1801
Two V-cylinders for rotation are provided, including a yy ring for rotation, and racks are formed in the parts corresponding to the piston rods of both cylinders, and the hooks are engaged with the standby gear and the replacement gear to drive. It is configured to do so.
このように、交換アームを異なる回転角で旋回させるた
めに２個の旋回周シリンダを設けているから、構造が複
雑で部品点数が増加し、これにともなって加工工数と組
立工数が増大し、かつ２個ｏｐリンダを設定するために
大色なスペースを確保しなければならない欠点がある。In this way, since two rotation circumferential cylinders are provided to rotate the exchange arm at different rotation angles, the structure is complicated and the number of parts increases, which increases the number of processing steps and assembly steps. Another disadvantage is that a large space must be secured in order to set up two op-linders.
一方、交換アームの両端に設は九工具グリップ）
で、工具を適確に把持して交換アーム旋回時の遠心力に
よってグリップ部から工具が飛び出さないようにしたロ
ック機構も例えば特開昭５４−３５４８６号によって提
案されているけれど、この稙のものは構造が複雑で部品
点数と加工工数が増大し、組立が困難な上故障の発生率
が高いなどの欠点がある。On the other hand, there is also a locking mechanism (9 tool grips) installed at both ends of the exchange arm, which grips the tool properly and prevents the tool from flying out from the grip due to centrifugal force when the exchange arm rotates. Although proposed in No. 35486, this version has drawbacks such as a complicated structure, increased number of parts and processing steps, difficulty in assembly, and high failure rate.
この発明は上記従来の欠点に鑑みなされたもので、１個
の旋回用ｙリングの動作によって、交換アームを９０°
および１８０°の異なる回転角で旋回させ得るように構
成し、部品点数と加工工数および組立工数を低減し、か
つシリンダ設置スペースの縮小を図９、しかも交換アー
ム両端の工具グリップ部の機構を簡略化して工具を適確
に把持できるように構成した工作機械の工具交換装置に
おける交換アーム装置を提供することを目的とする。This invention was made in view of the above-mentioned drawbacks of the conventional art, and the exchange arm can be moved 90 degrees by the operation of one Y-ring for rotation.
It is configured so that it can be rotated at different rotation angles of 180°, reducing the number of parts, processing man-hours, and assembly man-hours, and reducing the cylinder installation space (Fig. 9).Moreover, the mechanism of the tool grips at both ends of the exchange arm is simplified. It is an object of the present invention to provide an exchange arm device in a tool exchange device for a machine tool, which is configured to be able to accurately grip a tool.
以下、この発明の実施例を図面にしたがって説明する。Embodiments of the present invention will be described below with reference to the drawings.
第１図において、１は工具交換装置本体、２は交換アー
ムで、この交換アーム２はアーム支持軸１の先端に取付
けられておｐ１両端に半円状に凹んだ工具グリップ部４
ｍ 、 ４ｂを設けている。In Fig. 1, 1 is the main body of the tool exchanger, 2 is the exchange arm, and the exchange arm 2 is attached to the tip of the arm support shaft 1, and the tool grip portion 4 is recessed in a semicircular shape at both ends of the p1.
m, 4b are provided.
器は周知の工作機械のコラムで、このコラムｂには主軸
台ｉｂが上下移動可能に支持されている。The machine is a column of a well-known machine tool, and a headstock ib is supported on this column b so as to be movable up and down.
主軸台ＩｂＫ図転駆動可能に支持した主軸６ａにはたと
えばドリルやカッタなどの工具Ｔ、が把持されるように
している。主軸台５ｂを上下方向（矢印ア・イ方肉）Ｋ
移動することによシエＪ４Ｔ、を加工位置に移動させて
加工を行い得るように構成されている。A tool T such as a drill or a cutter, for example, is held by the main spindle 6a supported by the main spindle IbK so as to be rotatable. Move the headstock 5b in the vertical direction (arrows A and I) K
The structure is such that the shear J4T can be moved to a processing position by moving to perform processing.
・は交換工具保持部を示す。この交換工具保持部は、工
具マガジン部であってもよいし、また工具マガジンから
キャリヤによって工具を搬送した工具交換位置であって
もよい。この交換工具保持部６には交換されるための工
具Ｔ、が把持されてい石。・Indicates the replacement tool holder. The exchange tool holding section may be a tool magazine section or a tool exchange position where tools are transported from the tool magazine by a carrier. This replacement tool holding portion 6 holds a tool T to be replaced.
し九がって、交換アーム：を第１図の位置から矢印！方
向に９０°旋回させて、工作機械の主軸台６ｂの主軸口
に把持されている工具ＴＩを一方の工具グリップ部４１
で把持するとともに、交換工具保持部・に把持されてい
る工具Ｔ３を他方のグリップ部４ｂで把持し、交換アー
ム支持軸３を前進させて両工具”ｌ ＋ Ｔ＊を主軸Ｉ
ｓと工＾保持部６から軸方向に抜き取シ、つづいて交換
アーム２を矢印Ｘ方向に１８０°旋回させて工具Ｔ、を
主軸２ａの軸線上に、工具Ｔ１を交換工具保持部６の軸
線上に位置させ、そののち交換アーム２を後退させるこ
とで工具？、を主軸ｉａＫ、工ＡＴ、を交換工具保持部
６に把持させて工具交換を行うようになっている。Next, replace the arm: from the position shown in Figure 1 with the arrow! The tool TI, which is gripped at the spindle opening of the headstock 6b of the machine tool, is rotated 90 degrees in the direction of the tool grip part 41.
At the same time, grip the tool T3 held by the exchange tool holder with the other grip part 4b, move the exchange arm support shaft 3 forward, and move both tools "l + T* to the main shaft I.
Then, rotate the exchange arm 2 by 180 degrees in the direction of arrow tool by positioning it on the axis and then retracting the exchange arm 2. , the spindle iaK, and the machine AT are held by the exchange tool holder 6 to exchange tools.
第２図においそアーム支持軸１は大径の前軸部３１と小
径の後軸部１ｂとで形成され、後軸部８ｂの先端部３ｂ
＋を前軸部３ａＯ後端部に形成した盲貫孔！ａ、に嵌合
し、ビン３１ｍを径方向に挿通することで両者１ｍ 、
３ｂを一体的に結合している。そして、前軸部Ｉｎの
盲貫孔３１＋に連設して広径の開口３わを設け、かつ後
軸部３ｂの外周にスプライン３ｂ３を形成するとともに
その後部には径外方向に張シ出し友禅圧部１Ｃを形成し
ている。In FIG. 2, the arm support shaft 1 is formed of a large-diameter front shaft portion 31 and a small-diameter rear shaft portion 1b, and includes a tip portion 3b of the rear shaft portion 8b.
A blind through hole with + formed at the rear end of the front shaft portion 3aO! a, and by inserting the bottle 31m in the radial direction, the length of both is 1m,
3b are integrally connected. Then, a wide-diameter opening 3 is provided in series with the blind through hole 31+ of the front shaft portion In, and a spline 3b3 is formed on the outer periphery of the rear shaft portion 3b, and a spline 3b3 is provided at the rear portion thereof in a radially outward direction. A Yuzen pressure part 1C is formed.
上記支持軸１の前軸部１ｍは回転部材７を介し、また後
軸部３ｂは交換用歯車８０後方に連設しているボス部Ｉ
ｎｏ内周スプライン８ｂを上記スプライン３ｂｍ Ｋ噛
み合せることで、ボス部８１を介して装置本体ｌに回転
かつ軸方向の往復移動可能に支持されている。The front shaft portion 1m of the support shaft 1 is connected to the rotating member 7, and the rear shaft portion 3b is connected to a boss portion I connected to the rear of the replacement gear 80.
By engaging the inner peripheral spline 8b with the spline 3bmK, it is rotatably supported by the apparatus main body l via the boss portion 81 and reciprocated in the axial direction.
後軸部ｓｂの後端には繭後進Ｖリンダ９のピストンロッ
ド−１先端が軸壕わシの回転に対してはフリーの状態で
連結されている。The tip of the piston rod 1 of the cocoon backward V cylinder 9 is connected to the rear end of the rear shaft portion sb in a free state against rotation of the shaft groove.
論は待機用歯車で、その外径を上記交換用歯車８の外径
と同径に形成しており、前方に連設しているボス部１０
ｍの内周に固定した鍔付スリーブＨの内周スプラインｕ
１を上記後軸部３ｂのスプライン１ｂ■に噛合させ、待
機用歯車Ｗを後軸部３ｂに対して回転を規制しかつ軸方
向の往復移動可能に外嵌し、鍔付スリーブＵの鍔部ｕｂ
の後端面にスペーサ認を設けている。The concept is a standby gear whose outer diameter is the same as the outer diameter of the replacement gear 8, and a boss portion 10 connected to the front.
Inner periphery spline u of flanged sleeve H fixed to the inner periphery of m
1 is meshed with the spline 1b■ of the rear shaft portion 3b, and the standby gear W is fitted externally to the rear shaft portion 3b so as to restrict its rotation and to be movable back and forth in the axial direction. ub
A spacer is provided on the rear end surface of the
錫は待機用歯車の移動部材で、第３図にも示している。Tin is a moving member of the standby gear and is also shown in FIG.
上記移動部材塾は待機用歯車にのボス部］ＩＯａの先端
部外周に浄成し九央起ｔａｂに嵌合して、待機用歯車輪
を軸方向の位置は規制するが回転可能に保持してお）、
−側“Ｋ係合面１３ａを設けるとともに、ボス部１０ｍ
の先端部内周にベアリング騒のアウタレース１４ａ 全
嵌合し、そのインナレース１４ｂニアーム支持軸３の後
軸部１ｂの外周に回転可能に外嵌しているねじ状部材塾
を嵌合して固定している。The above-mentioned moving member is formed on the outer periphery of the tip of the standby gear (boss part) of the standby gear, and is fitted into the tab to restrict the position of the standby gear in the axial direction, but to hold it rotatably. ),
− side “K engaging surface 13a is provided, and the boss portion 10m
The outer race 14a of the bearing ring is fully fitted to the inner periphery of the tip of the bearing, and the inner race 14b is fitted and fixed with a threaded member rotatably fitted to the outer periphery of the rear shaft portion 1b of the near arm support shaft 3. ing.
したがって、ねじ状部付込を軸まわシに回転させること
で、その回転方向に応じて待機用歯車ｌＯと待機用−車
の移動部材ｍはアーム支持軸３の軸方向に往復移動する
。Therefore, by rotating the screw-shaped part fitting around the shaft, the standby gear lO and the moving member m of the standby wheel reciprocate in the axial direction of the arm support shaft 3 depending on the direction of rotation.
上記ねじ状部甘坊の雄ねじ部１６ａは、回転部材１の後
端部内肩に固定されているブツシュ通の雌ねじ部１ｉ１
ａと螺合し、また、第４図で明らかなように、回転部材
１の後端部に２叉状延出片７ａを径外方向の斜め上方に
砥出している。The male threaded portion 16a of the threaded portion is connected to the female threaded portion 1i1 of the bushing that is fixed to the inner shoulder of the rear end of the rotating member 1.
As is clear from FIG. 4, a bifurcated extending piece 7a is sharpened diagonally upward in the radial outward direction at the rear end of the rotating member 1.
ηは旋回用ｙリングで、この旋回用ンリンダηは装置本
体ｌの一側面に固定され、そのピストンロッドに相当す
る部分をフック膳で形成している。η is a turning Y-ring, and this turning cylinder η is fixed to one side of the device main body l, and a portion corresponding to the piston rod is formed by a hook.
そして、このフック論に対して上記待機用歯車ｍと交換
用歯車８とを後述する動作によって順次噛合させ、かつ
ラック感を往復移動させることで上記両歯車１．Ｍｌを
所定の回転角（１８０°、 ９０’）で回転させる。し
たがって、交換用歯車８を１８０″の回転角で回転させ
得るストローク長をもっており、フックｌの先端に係止
部１８ａ （第５図参照）を設けている。In response to this hook theory, the standby gear m and the replacement gear 8 are sequentially meshed with each other by an operation described later, and the rack sense is moved back and forth, so that both the gears 1. Rotate Ml at a predetermined rotation angle (180°, 90'). Therefore, it has a stroke length that can rotate the replacement gear 8 at a rotation angle of 180'', and a locking portion 18a (see FIG. 5) is provided at the tip of the hook l.
騰は工具ロックＶリンダを示す。このロックＶリンダ謄
は装置本体１の一側面における上記旋回用ｙｙンダ「よ
りも幾分前方でかつ上＠に位置して固定されてお〉、そ
のピストンロッド胸を上記回転部材Ｔの２叉状延出片７
１に対してピンクを介して連結している。The vertical line indicates the tool lock V cylinder. This lock V cylinder is fixed at a position slightly forward and above the turning cylinder on one side of the device main body 1, and the piston rod chest is fixed to the two prongs of the rotating member T. Shape extension piece 7
It is connected to 1 through pink.
したがって、ロックＶリンダ１９の動作にともなうロッ
ド１Ｇｍの往復移動によって、２叉状延出片７ｍと回転
部材７は第４図で示す実線位置から仮想線で示す間の回
動を行う。Therefore, due to the reciprocating movement of the rod 1Gm accompanying the operation of the lock V cylinder 19, the bifurcated extending piece 7m and the rotating member 7 rotate from the solid line position shown in FIG. 4 to the position shown by the imaginary line.
回転部材７の先端部には噛合部７ｂを形成している。そ
して第６図および第７図に明示しているように、上記噛
合部ｒｂを交換アーム！に内蔵されかつアーム支持軸１
の前軸部１ｍに回転可能に外嵌しているカムＡの後端に
形成した噛合部２１ａに常時噛合させている。A meshing portion 7b is formed at the tip of the rotating member 7. As clearly shown in Fig. 6 and Fig. 7, the above-mentioned meshing part rb is replaced with the arm! Built-in and arm support shaft 1
The cam A is always engaged with an engaging part 21a formed at the rear end of the cam A which is rotatably fitted onto the front shaft part 1m of the cam A.
を九、カムｎのカム両区は、１対の大径部２２ａと小径
部ｍｂとからなり、カム盟の両側に１対のロー９ Ｄａ
、 ｌｉｂが配設され、ローラ乞、２３にはそれぞれ
ロッキング爪２４ａ 、 ２４ｂを連結し、これらロッ
キング爪２４ａ 、 ２４ｂにスプリング６を係止して
、そのばね力でローフ２３ａ ＋ Ｚ３１）を常時カム
面ｎに当接させている。9. Both cam sections of cam n consist of a pair of large diameter section 22a and small diameter section mb, and a pair of rows 9 Da are provided on both sides of the cam section.
, lib are arranged, and locking pawls 24a and 24b are connected to the rollers 23, respectively, and springs 6 are engaged with these locking pawls 24a and 24b, so that the loaf 23a + Z31) is constantly cammed by the spring force. It is brought into contact with surface n.
そのだめ、ローフ２：３ｍ ＋ ２３ｂがカム面４０大
径部２２暑に当接することで、ロッキング爪２４ａ 、
２４ｂの先端部は第７図の実線で示すように工具グリ
ップ部４ｍ 、 Ｊｂ内に突出し、ローフ２３ａ 、
２３ｂが小径部２２ｂに当接した場合には第７図の仮想
線で示すように退避する。However, when the loaf 2:3m+23b comes into contact with the cam surface 40 and the large diameter portion 22, the locking claw 24a,
The tip of 24b protrudes into the tool grip 4m, Jb as shown by the solid line in FIG. 7, and the loaf 23a,
When the small diameter portion 23b comes into contact with the small diameter portion 22b, the small diameter portion 23b retreats as shown by the imaginary line in FIG.
２７は工具ロック兼フック位置決め機構で、回転部材７
と待機用歯車の移動部材迫およびねじ状部甘坊、カム■
、ロッキング爪２４ａ 、 ２４ｂなどで構成されてい
る。27 is a tool lock/hook positioning mechanism, and the rotating member 7
and the moving part of the standby gear and the threaded part Amabo, cam■
, locking claws 24a, 24b, etc.
第１図牛腸は回シ止めを示し、先端に待機用鹸車Ｗに噛
合して回転を規制する係止部２８ａを備え、後端部を交
換用歯車８のボス部８ａの後端に固定し＋Ｖング々に固
定している。Ｉはストッパで、上記リング々に固定され
て後方に延出し、アーム支持軸３の後軸部１ｂに設けた
抑圧部３ｃに係合する係止部ａＯａを設けている。３１
はピンで移動部甘口に取付けられて後方に延出し装置本
体１の孔に嵌合し、移動部材腿の回転を防止する。The bovine intestine in FIG. 1 shows a rotation stopper, and has a locking part 28a at the tip that engages with the standby wheel W to restrict rotation, and the rear end is fixed to the rear end of the boss part 8a of the replacement gear 8. It is fixed at +V. A stopper I is fixed to the rings, extends rearward, and has a locking portion aOa that engages with a suppressing portion 3c provided on the rear shaft portion 1b of the arm support shaft 3. 31
is attached to the sweet end of the moving part with a pin and extends rearward to fit into a hole in the main body 1 of the device, thereby preventing rotation of the thigh of the moving member.
つぎに上記構成の作動をのべる。Next, the operation of the above configuration will be described.
交換アーム冨が第１図で示す待機位置にある。The exchange arm depth is in the standby position shown in FIG.
この場合フック膳は第２図の軸＠Ｃよシ上位で示すよう
に待機用歯車鴻と噛合し、かつ第８図のように係止部Ｍ
Ｊａが待機用歯車の移動部材協の保合面ＬｌａＫ係止し
ている。つｔ〉フック迅は旋回用シリンダＵのストロー
ク中間位置にある。そして回り止め易の係止Ｓ−は待機
用歯車Ｗの前側に位置して待機用歯車廼を回転可能な状
態にしている。In this case, the hook holder meshes with the standby gear lock as shown above the shaft @C in Figure 2, and the locking part M as shown in Figure 8.
Ja is locked to the retaining surface LlaK of the moving member of the standby gear. t〉The hook is located at the middle of the stroke of the turning cylinder U. The lock S-, which can be easily prevented from rotating, is located on the front side of the standby gear W to allow the standby gear W to rotate.
つぎに１旋回用シリンダυが動作してラック論はストロ
ーク終端まで移動する。この移動によって待機用歯車鱒
は回転角９０°だけ回転し、アーム支持軸３を同時回転
させる。したがって、交換アーム３は第１図の矢印Ｘ方
向に９０°回転し、工具グリップ部４ａに工作機械Ｓの
主軸６ａに把持されている工具Ｔ、を、工具グリップ部
４ｂに交換工具保持ｓ６に把持されている工具ＴＩを嵌
合し九第９図の状態になる。Next, the cylinder υ for one revolution operates and the rack moves to the end of the stroke. Due to this movement, the standby gear trout rotates by a rotation angle of 90 degrees, and the arm support shaft 3 is simultaneously rotated. Therefore, the exchange arm 3 rotates 90 degrees in the direction of the arrow X in FIG. The gripped tool TI is fitted into the state shown in FIG. 9.
つづいてロックＶリンダ鴻が動作し、ピストンロッド１
９ａをストローク終端まで前進移動させ、ピンクを介し
て回転部材１およびその２叉状延出片７ａｔ−第４図の
実線位置から仮想線で示す位置へ回転させる。Next, the lock V cylinder cylinder operates, and the piston rod 1
9a is moved forward to the end of the stroke, and the rotary member 1 and its bifurcated extension piece 7at are rotated from the solid line position in FIG. 4 to the position shown by the imaginary line through the pink.
上記回転部材７が回転することで、ブツシュ通を介して
該ブッＶユ遥の雌ねじ部―を螺合しているねじ状部材迅
をアーム支持軸１の軸方向に少し曲進させて待機用歯車
Ｗとラック論との噛合を解き、かつ待機用歯車Ｗに回シ
止め路の係止部２８ａを係合させて待機用歯車鱒の回転
を規制するとともに、待機用歯車の移動部材纏を前進さ
せて第１０図のように係合面一をフック纏の係止５１８
ａがら退避させてフック纏をフリー状態にする。As the rotating member 7 rotates, the threaded member screwing the female threaded part of the bushing V through the bushing is slightly bent in the axial direction of the arm support shaft 1 for standby operation. The gear W and the rack mechanism are disengaged, and the locking portion 28a of the rotation stopper path is engaged with the standby gear W to regulate the rotation of the standby gear, and the moving member wrap of the standby gear is Move it forward and lock the hook 518 so that the engaging surface is flush with the hook as shown in FIG.
A is retracted to make the hook binding free.
一方、上記の動作と同時にカムｍが回転してカム面４の
大径１１ＺＩａがローブＺｉｍ 、 ２３ｂに当接し、
スプリング篇のばね力に抗してロッキング爪２４ａ 、
２４ｂを第７図の実線で示すように工具グリップ部４
ａ、４ｂ方向に突出させて、工具グリップ部４ａ 、
４ｂに嵌合している工具”ｌ ｈ Ｔ宜をロックする。Meanwhile, at the same time as the above operation, the cam m rotates, and the large diameter 11ZIa of the cam surface 4 comes into contact with the lobe Zim, 23b,
The locking claw 24a resists the spring force of the spring,
24b as shown by the solid line in FIG.
The tool grip portion 4a is protruded in the directions a and 4b,
Lock the tool fitted to 4b.
つぎに、旋回用シリンダＵが動作して、上記フリー状態
のフック膳をストローク始端位置まで後退させる。Next, the turning cylinder U is operated to retreat the hook tray in the free state to the stroke starting position.
つづいて、前後進シリンダ９が動作してピストンロッド
Ｓａをストローク終端まで前進させる。そのために１ア
ーム支持軸畠および交換アーム２が前進し工具グリップ
９４ａ ４ｂにロックサレテイル工具テ１ ｅ Ｔｍ
は、それぞれ主軸６ａおよび交換工具保持部６から抜き
取られる。Subsequently, the forward and backward movement cylinder 9 operates to advance the piston rod Sa to the end of the stroke. For this purpose, the arm 1 support shaft and the exchange arm 2 move forward and lock onto the tool grips 94a and 4b.
are extracted from the main spindle 6a and the replacement tool holder 6, respectively.
また、上記前後進シリンダ９のピストンロッド９１がス
トローク終端にまで前進することで交換用歯車畠は第２
図の軸線Ｃより下位で示す位置、つまシフツク纏と噛合
する位置に達し、Ｕｊ３Ｊ９止め墓の係止１１ｍａは待
機用歯車輪から外れる。Also, as the piston rod 91 of the forward/reverse cylinder 9 moves forward to the end of its stroke, the replacement gearbox is moved to the second position.
It reaches the position shown below the axis C in the figure, the position where it engages with the pawl shifter, and the lock 11ma of the Uj3J9 stopper is disengaged from the standby gear wheel.
ついで、旋回用シリンダηが動作し、フック纏を始端か
らストローク終端まで移動させる。この移動によって交
換用歯車Ｓは１８０＠回転し、交換アーム１を第１１１
１０状態、つｔシ工具グリップ４ｂＫロックされている
工具Ｔ１を工作機械器の主軸６ａの中心線上に、工具グ
リップ４ａにロックされている工具Ｔ１を交換工具保持
部６の中心線上に位置させる。Then, the turning cylinder η is operated to move the hook wrap from the starting end to the stroke end. This movement causes the replacement gear S to rotate 180@, moving the replacement arm 1 to the 111th position.
In the 10th state, position the tool T1 locked on the tool grip 4bK on the center line of the main shaft 6a of the machine tool, and position the tool T1 locked on the tool grip 4a on the center line of the exchange tool holder 6.
つぎに前後進Ｖリンダ−が動作してピストンロッド９ａ
をストローク始端まで後退させ、アーム支持軸１および
交換アーム２を後退して復帰させる。Next, the forward/reverse V cylinder operates and the piston rod 9a
is retracted to the stroke starting end, and the arm support shaft 1 and exchange arm 2 are retracted and returned.
このときアーム支持軸３の後軸部ｓｂＫ設けた押圧部１
ＣがストッパＪの係止部Ｘ１ｍに保合して待機用歯車穎
を後退させる。後退位置では回り止め器の係止部動は待
機用歯車ｌＯに係合する。At this time, the pressing portion 1 provided at the rear shaft portion sbK of the arm support shaft 3
C is engaged with the locking portion X1m of the stopper J, and the standby gear wheel is moved backward. In the retracted position, the locking movement of the detent engages the standby gear lO.
上記交換アーム２の後退によって、工具グリップ４ｂに
ロックされている工具Ｔ、を主軸５８Ｋ、工具グリップ
４ａＫロツクされている工具Ｔ１を交換工具保持部ｅに
それぞれ嵌合する。By retracting the exchange arm 2, the tool T locked in the tool grip 4b is fitted into the main shaft 58K, and the tool T1 locked in the tool grip 4aK is fitted into the exchange tool holder e.
さらに、ロックＶリンダ１９が動作してピストンロッド
１９ａをストローク始端まで後退移動させ、回転部材γ
を第４図の実線位置に回転復帰させることによってねじ
状部材正をアーム支持軸３の軸方向に少し後退復帰させ
る。この−合の後退は移動部材口が装置本体ＩＫ当接す
ることで規制される。Furthermore, the lock V cylinder 19 operates to move the piston rod 19a backward to the stroke starting end, and the rotating member γ
By rotating and returning to the solid line position in FIG. 4, the threaded member is moved back a little in the axial direction of the arm support shaft 3. Retraction in this case is regulated by the moving member opening coming into contact with the device main body IK.
ねじ状部材通が後退復帰することで待機用歯車ｍは上記
回シ止め墓から離間してフック纏に噛合し、かつカムｎ
が逆回転するためにカム面ｎの小径部２２ｂにローフシ
１動が尚接し、スプリング易のばね力によってロッキン
グ爪２４ａ 、 ２４ｂが第７図の仮想線で示すように
工具グリップ部４ｍ 、 ４ｂから退避させ、工具テ１
＊ Ｔ富をアンロックし、このアンロック動作に応動
して主軸Ｉｎは工具Ｔ、を、交換工具保持部・は工具Ｔ
１を適確に把持して工具交換を終了する。When the threaded member passes backward and returns, the standby gear m is separated from the rotation stopper and meshes with the hook sleeve, and the cam n
Because of the reverse rotation, the loaf shear 1 is still in contact with the small diameter portion 22b of the cam surface n, and the spring force of the spring causes the locking pawls 24a, 24b to move away from the tool grip portions 4m, 4b as shown by the imaginary lines in FIG. Evacuate, tool te 1
* Unlocks the T wealth, and in response to this unlocking operation, the spindle In moves the tool T, and the replacement tool holding part moves the tool T.
1 properly to complete the tool change.
つづいて旋回用ＶリングＵが動作してフック込をストロ
ーク終端位置からストローク始端位置に向けて後退移動
させ、ストロークの中間位置において上記第８図で示す
ように係止部Ｌｉｒａが待機用歯車の移動部材口の保合
面に係合した状態に復帰し、交換アーム２を待機位置に
復帰させてつぎの工具交換に備える。Next, the turning V ring U operates to move the hook backward from the stroke end position to the stroke start position, and at the intermediate position of the stroke, the locking part Lira engages with the standby gear as shown in FIG. It returns to the state in which it is engaged with the retaining surface of the moving member opening, and returns the exchange arm 2 to the standby position in preparation for the next tool exchange.
以上説明しえように、この発明によれば１個の旋回用シ
リンダの動作によって交換アームを９００および１８０
°の異なる回転角で旋回させ得るように構成し、かつ交
換アーム両端部の工具ロック・アンロック機構を簡略化
しているから、部品点数と加工工数および組立工数を低
減し、しかも設置スペースの縮小を図ることができる利
点がある。As explained above, according to the present invention, the exchange arm can be moved between 900 and 180 by the operation of one turning cylinder.
It is configured to be able to rotate at different rotation angles of °, and the tool lock/unlock mechanism at both ends of the interchangeable arm is simplified, reducing the number of parts, machining and assembly man-hours, and reducing installation space. It has the advantage of being able to achieve
第１図はこの発明に係る装置と工作機械の主軸および交
換工具保持部の相対位置関係を示す正面図、第２図はア
ーム支持軸の縦断面図で中心線の上位は前後進ｙｙンダ
の後退時の歯車位置を中心線の下位り前後進ｙリング前
進時の歯車位置！示している。第３図は第２図における
ムーＡ線断面図、第４図は同Ｂ−Ｂ線断面図、第５図は
フックと移動部材の位置関係を示す一部平面図、第６図
ハ交換アームを一部断面してカムおよびロッキング爪を
示す平面図、第７図は同正面図、第８図は移動部材とフ
ックの係止状態を示す斜視図、ｆｓ９図は交換アームの
９０”旋回時の正面図、第１０図は移動部材がラックか
ら退避した状態を示す斜視図、第１１図は交換アームの
１８０°旋回時の正面図である。
１Ｃ・・・押圧部、４烏、４ｂ・・・工具グリップ部、
ｂ・・・フフム、 １ｍ・・・主軸、・・・・交換工具
保持部、７・・・回転部材、８・・・交換用歯車、９・
・・前後進Ｖリンダ、Ｗ・・・待機用歯車、腸・・・待
機用歯車の移動部材、―・・・係合面、蔦・・・ねじ状
部材、脇１・・・ねじ部、Ｕ・・・旋回用シリンダ、感
・・・フック、１８ｍ・・・係止部、噌・・・ロックＶ
リンダ、１４ｍ 、 ｍ−・ロッキング爪、謳・・・カ
ム機構、Ｉ・・・工具兼フック位置決め機構、”１ ＋
Ｔ＠・・・工具。
ヤ、Ｌ５」・
第８図
第１０図
第９図
第１１図Fig. 1 is a front view showing the relative positional relationship between the device according to the present invention, the main shaft of the machine tool, and the replaceable tool holder, and Fig. 2 is a longitudinal cross-sectional view of the arm support shaft. The position of the gear when moving backwards is below the center line.The position of the gear when moving forward and backward.Y-ring when moving forward! It shows. Figure 3 is a sectional view taken along line A in Figure 2, Figure 4 is a sectional view taken along line B-B in Figure 2, Figure 5 is a partial plan view showing the positional relationship between the hook and the movable member, and Figure 6 C is an exchange arm. FIG. 7 is a front view of the same, FIG. 8 is a perspective view showing the locked state of the moving member and the hook, and FS9 is a plan view showing the cam and locking claw when the exchange arm is turned 90". 10 is a perspective view showing a state in which the movable member is retracted from the rack, and FIG. 11 is a front view of the exchange arm when it is turned 180 degrees. 1C... Pressing part, 4 crow, 4 b.・Tool grip part,
b... Hmm, 1m... Main shaft,... Replacement tool holding part, 7... Rotating member, 8... Replacement gear, 9...
... Forward and backward V cylinder, W...standby gear, intestine...moving member of standby gear, ---engaging surface, ribs...threaded member, side 1...threaded part, U...Swivel cylinder, feeling...hook, 18m...locking part, screw...lock V
Linda, 14m, m- Locking claw, Uta... cam mechanism, I... Tool and hook positioning mechanism, ``1 +
[email protected]. Ya, L5”・Figure 8Figure 10Figure 9Figure 11
Claims (1)
工作機械主軸と交換工臭保持部の工具を交換する装置に
おいて、交換アームを先端部に取付は九アーム支持軸を
装置本体に回転かつ前後進ｙｙンダによ）軸方崗Ｋｉｌ
動駆動可飾に支持し、上記支持軸に待機用歯車および該
待機用歯車と同径の交換用歯車を軸方向には移動可能で
あるが回転を規制して支持し、装置本体に上記交換用歯
車と噛合って誼歯車を１８０°回転可能なフックを旋回
用Ｖリンダによシフツク軸方向に移動駆動可能に支持し
、さらに交換用歯車を上記前後進シリンダの１進位置で
支持軸Ｋｖけ九押圧部によシ押されて上記フッタと噛合
うように構成する一方、支持軸Ｏ軸方向に移動可能に保
持されかつ待機用歯車を軸方向の位置は規制すゐが回転
可能に保持しさらに交換アームの待機位置でラックの係
止部に自振してフックの停止位置を決める保合面が設け
られｔ九支持軸の軸方向のねじ状部材を回転可能ではあ
るが軸方向の移動を規制して保持する待機用歯車の移動
部材を設けるとともにさらに装置本体に支持軸方向の移
動は規制されかつ工具ロックシリンダによシ回転駆動可
能に支持されさらに上記ねじ状部材に螺合するねじ部を
有する回転部材を設けてなシこの回転部材の回転にょ１
す機構を介してグリップｓＫ支持し九工具ロッキング爪
をロックアンロックするとともに工具のロック時にはフ
ックと待機用歯車の噛合いをはずしかつ移動部材をフッ
クの係止部と係合しない位置に退避させｔ九工具のアン
ロック時にはラックを待機用歯車に噛合させかつ移動部
材をフックと保合可能な位置にする工具ロック兼ラック
位置決め機構を備え、旋回ｖｙンダによ）交換アームを
待機位置から主軸と保持部の工具を把持可能な位置に旋
回させてこの位置で工具をロックし、ついで旋回用シリ
ンダをフックが歯車に噛合しない状Ｍにおいて後退させ
、この後前後進シリンダを前進させて工具を抜取り、つ
いで旋回シリンダにより交換アームを１８０°旋回させ
前後進ｙｙンダを後退させて工具を交換し、この後工具
のロックを解除し交換アームを待機位置に旋回するよう
に構成したことを特徴とする工作機械の工具交換装置に
おける交換アーム装置。(13: By means of an exchange arm with tool grips on both ends)
In a device for exchanging tools between the main shaft of a machine tool and a tool retainer, the exchange arm is attached to the tip of the machine by rotating the arm support shaft to the device body and moving it forward and backward.
A standby gear and a replacement gear with the same diameter as the standby gear are supported on the support shaft in a manner that allows movement in the axial direction but restricts rotation, and the replacement gear is supported on the main body of the device. A hook that meshes with the replacement gear and can rotate the replacement gear 180 degrees is supported by a turning V cylinder so that it can be moved and driven in the direction of the shift shaft, and the replacement gear is further moved on the support shaft Kv at the single-advance position of the forward/reverse cylinder. The footer is configured to be pushed by the pusher and engage with the footer, while the support shaft is held movably in the axial direction, and the standby gear is held rotatably by the axially position regulating gear. Furthermore, at the standby position of the exchange arm, a retaining surface is provided on the locking part of the rack to determine the stopping position of the hook by self-oscillation. A moving member of the standby gear is provided to restrict and hold the movement of the standby gear, and furthermore, the movement of the standby gear in the direction of the support shaft is restricted to the device body, and the tool is rotatably supported by a tool lock cylinder and is further screwed into the threaded member. Rotation of this rotating member is not provided with a rotating member having a threaded portion.1
The grip sK is supported through a mechanism that locks and unlocks the nine tool locking claws, and when the tool is locked, the hook and standby gear are disengaged and the movable member is retracted to a position where it does not engage with the locking part of the hook. Equipped with a tool lock and rack positioning mechanism that engages the rack with the standby gear when the tool is unlocked and places the movable member in a position where it can be held with the hook. The tool in the holder is rotated to a position where it can be gripped, and the tool is locked in this position.Then, the rotation cylinder is moved back to the position M where the hook does not mesh with the gear, and then the forward and backward movement cylinder is moved forward to hold the tool. The tool is removed, and then the exchange arm is rotated 180 degrees by a rotation cylinder, the forward/backward movement cylinder is moved backward, and the tool is exchanged.After this, the tool is unlocked and the exchange arm is rotated to a standby position. Exchange arm device for tool change equipment of machine tools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57048506A JPS603540B2 (en) | 1982-03-25 | 1982-03-25 | Exchange arm device in tool change device of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57048506A JPS603540B2 (en) | 1982-03-25 | 1982-03-25 | Exchange arm device in tool change device of machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58165943A true JPS58165943A (en) | 1983-10-01 |
| JPS603540B2 JPS603540B2 (en) | 1985-01-29 |
Family
ID=12805257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57048506A Expired JPS603540B2 (en) | 1982-03-25 | 1982-03-25 | Exchange arm device in tool change device of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS603540B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6175943U (en) * | 1984-10-25 | 1986-05-22 |
-
1982
- 1982-03-25 JP JP57048506A patent/JPS603540B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6175943U (en) * | 1984-10-25 | 1986-05-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS603540B2 (en) | 1985-01-29 |
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