201130597 六、發明說明： 【發明所屬之技術領域】 本發明係«於錄裝置，尤其财.構成為可相對夾 夾緊桿、並以將夾緊桿插通於工件之孔的狀態，藉 ^ 、 動而進行固定的夾緊裝置。 稭由朝火緊本體側退入驅 【先前技術】 ，習知者’在供予機械加工之各種形狀、結構的卫件當中例如概套 jbush)*狀部件或套筒（sleeve)狀部件等，對具有由大直徑孔與小直押孔 ίΐϊΐΓ轉的上端面或外周面進行賊加係廣泛採用螺栓 如圖18所示，該螺栓方式夾緊裝置CL係以例如用於安裝 狀的工件固定塊200及多個螺栓（b〇1〇 2〇1構成。在工件固定塊勘 縱橫方向每隔著適當間隔形成多個螺栓孔2〇2,於多個螺栓孔加的位置^ ^別，多個工件W ’使螺栓2〇1插通於由各工件w之大直徑謂與= 直徑孔204構成的臺階孔205並螺合於螺栓孔2〇2，再將螺检頭部加 納於大直徑孔203内並以螺栓頭部勘按壓臺階孔2〇5的臺階部 工件W固^於工件固^塊施上。於此夾緊狀態下，可面 或外周面進行機械加工。 ^上^面 專利文獻1巾鮮有-翻㈣栓鱗固定功卿的多麵 位固定治具。例如，立獻1夕[g| Q ^ ^ 的讀定位固定治具具有：基臺部 臺面，調節部件’使之螺合於該基臺部件的螺絲孔内；爽 己ί於調節部件與工件表面；以及螺栓部件，為將螺检頭部 卡疋於基臺（.table)之Τ型槽的螺㈣件，·基臺 與夾緊金輕制雜基臺。 丨丨件 獻、2中揭示有一種構成為將與拉銷（PuUStUd)約略相同的拉桿 ，栓（夾緊桿）藉由螺合裝配於工件之下關，並可裝卸地固定該 栓的附球狀鎖定式（baU l〇ck)機構之夾緊裝置。 干螺 遠夾緊裝置具有：外殼；油壓虹，具備設於外殼内部的環狀活塞；套 201130597 筒’將該雜絲絲成_麟，細輯 行解除夾緊驅動；多顆球（鋼球），於套筒:緊15動且以彈簧進 向移動；以及環狀操作部件，具備可朝 俾使多顆球朝半徑 再經由多顆球朝下 油壓虹俾使套筒下降，且經由環狀操作部件筒内的狀態夾緊驅動 方向之轴心側移動並使其卡合於拉桿螺栓的大直徑 方拉引而固定。 ° ’ 專利文獻3中揭示有一種構成為將拉銷藉由 裝卸地固定該拉銷的附筒夾夾頭（cc)lletdiuck)a固定塊之下面 芯四個筒夾之前端部分別形成爪部，並利用油_吏_ = 個筒夾擺動，以便將四個爪部切換成擴徑狀態與縮徑 二於夾緊之際’係於擴餘態的四個爪部内導人拉銷後，使四個爪 呈縮徑狀態以藉四個爪部夾緊拉銷。 【先前技術文獻】 【專利文獻1】日本特開2001 — 293626號公報 【專利文獻2】日本特開平9一285925號公報 【專利文獻3】曰本特開2〇〇5 —81480號公報 【發明内容】 【發明所欲解決之課題】 所述螺拴方式錄裝置t，為了錄工件而將耗f甚多勞力於鎖緊多 固，栓’並且亦難以使糊螺帽扳手（nut咖膨）等所進行之螺检鎖緊作 業高速化。儘管雛以依等_實際使綠態下所附加之負荷條件的負 條件按壓多個X件的狀祕進行機械加工，然而即使將固定多個工件的多 個螺栓以-定的轉矩（_ue)鎖緊，仍會存在下觸題：由螺栓之螺絲部 的摩擦耗損、細微加ji剌的附著、或爾狀態的差異所產生的摩擦等會 對夾緊工件的減力產生變動偏差，故無法以對應於工件之所期望的夹緊 力來固定工件而無法正確控管夾緊力。 專利文獻1之工件定位固定治具中，為了經由螺栓來固定工件而存有 、所述螺栓方式夾緊裝置同樣的問題。此外，由於係以工件定位固定裝置 201130597 的夾緊金>1零件減讀上端面的至少—部分，故無法將讀上端面整面 適用於如進行機械加工的工件。 專利文獻2之附球狀鎖定式機構的夾緊裝置中，由於球與拉桿螺检的 接觸部分非為面接觸而呈線接觸（正確而言為圓弧接觸），故接觸部分的面 ^力極高’耻鋪化絲力讀，每t絲時錄獅栓或球保持孔皆 會產生壓痕祕究難續高耐紐。—，在球狀較式機構的場合，由 於無法將配置成雜❹顆雜置成錯，故亦難以如職方式夾緊裝置 般強化夾緊力。 專利文獻3的夾緊裝置巾，由料_夾㈣拉銷的聊夾緊，故存 有與專利文獻2之附球狀鎖定式機構之爽緊裝置同樣的問題。 本發明之目的在於提供-種夾緊裝置，其為可將固定夹緊對象物的夹 緊桿裝㈣錄裝置’可強化錄力且可正確控管錄力樣夠提高耐久 性。 【用以解決課題之裝置】 緊裝置備有：具有可從上方部分插人夾緊桿之桿插入孔的 夾緊本體、與可裝卸於所述桿插人孔的縱向絲桿，並触緊本體側退入 驅動所述«桿_定絲縣物’其特徵在於：所述絲桿具有形成於 其軸心方向多處❹個環狀卡合部，而所述絲本體則具有：多個部 件，以形颜述桿插人孔的—部分的方核置成雜，且藉平行移動可 域擴徑’其具有形成於其軸心方向多處的多個環狀按壓部；夾緊用致動 器’用以朝退人方向失緊驅動所述多個筒夾部件與炎緊桿；以及第一 機構’由所述«舰動H進行錄鶴之際，以使多_姨件縮徑並 使多個環狀按壓雜上方卡合衫個環狀卡合部的方式料多個 件，並且於解除夾緊時，當多個筒夾部件朝上方軸之際以使多個筒爽 =擴徑並使多個環狀按壓部從多個環狀卡合部隔離的方式引導多個筒夹 ，發明之，緊裝置中，g£i置成環狀的多個筒夾部件可藉平行移動縮徑 或擴徑，並於該多個筒夹部件其軸心方向多處形成多個環狀按壓部由^ 緊用致動器進行錄驅動之際，好個環狀減部卡合於形成於夾 轴心方向多處的多個環狀卡合部。由此，便可顯著敎㈣環狀按^與 201130597 【發明之效果】 _ 方向的夾緊裝置’由於係構成為於配置成環狀的多個筒央轴心 =::r 上 力並 低寂许’二2按壓°p與壤狀卡合部之接觸部的面積而將面壓力維持於 °提局夾緊裝置的耐久性、能夠藉夾㈣致動11的驅動力正確 控管夾緊力而能夠產生穩定的夾緊力。 動刀正確 由於解除夾緊時係經由第一引導機構使個 亦月b以將夾緊桿插通於工件之孔的狀態來夾緊。 除本發明之結構外，亦可制如下各種結構： (a)所述各環狀按壓部具有與夾緊桿之軸心正交或略呈正交之面向下方的 環狀按壓面’所述各職卡合部具有與所述環狀觀面面接觸而按壓之面 向上方的環狀卡合面。 據此結構，由於各職按壓部具有與錄桿之軸d交或略呈正交之 面向下方的環狀按壓面，各魏卡合部具有與所述環狀按壓面面接觸而按 壓之面向上方的環狀卡合面，故可提高夾緊用致動器所產生之夾緊驅動的 驅動力傳遞至絲桿的傳遞鱗^達成絲裝置的小型化。 ⑻所述夾緊用致動n係由流體壓缸構成該流體壓缸備有環狀活塞部 件、與使趙壓作驗該縣活塞部件表關的環狀流體壓伽室，並設 置解除夾緊之際使多個筒夾料與所述流歷缸之雜活塞部件回復至解 除夾緊位置的第一回復機構。 據此結構’即可於解除夾緊之際以第—回復機構使流體壓缸之環狀活 塞部件回復至解除夾緊位置。 (c)所述流體壓缸係可滑動自如地外嵌於該環狀活塞部件上，並具有於下 面側承文所述環狀流體壓作動室之越壓的輔助環狀活塞，所述夾緊本體 的本體外殼具有形成所述桿插人孔的—部分的上壁部，所述第—引導機構 201130597 =側====徑的錐狀面，分別形成於多個筒夾部 狀卢业斗分L乃面及内周面’用於縮徑的錐狀引導面，形成於所述輔 狀+ 7部’且於流麗缸進行絲轉剌導所述餘縮徑的錐 述多個筒央部件縮徑，·以及用於擴徑的錐狀引導面，形成於戶t 擴徑之餘 ’由於第n賴構具有形成於多個肢部件上端部分之用 ==及用於擴徑的錐狀面、形成於輔助環狀活塞上端部之二 面’故可，動時與多個筒夹部件的下降連動而使 = ：：：：£^ 件縮徑，以及用於雛的錐狀引導面，形成於 ” 故未=:環::塞在:===^^ =:二 ===:=向 形成於多個同夾部件之凸緣部的内周部且往’ :壓=:=動_狀卡合…簡彈“二 "據=:=:¾ 彈性推壓该環狀卡合部件的屋縮彈簧的第二引導:彳月上方 藉第二將機縣漏齡-？1賴構❹個夾緊時 201130597 (f)所述多個筒夾部件具有所述油壓缸之 形成於下端部分的凸緣部，並設置第 m :牛自上方與之相向而 狀從動面而形成於所述環狀活塞部件幻’以及錐狀按壓面，抵接於該錐 據此結構，由於設置備有形紐多個筒夾部件的 直徑愈小_織動面、錢浦於_缝動、 的錐狀按壓㈣第三引祕禮，心&+831 4 /驟抓居基精 助藉第-引導機構好__件縮^的 動時藉第三引導機構強力輔 多個筒夾部件具有所述流體壓缸之環狀活塞部件自上方與之相向 而形成於下&部分的凸緣部，並於所述凸緣部的表面雜環狀 娜繼，綱爛靖㈣軸心轉 據此結構’由於在多個筒夾部件之凸緣部與環狀活塞部件間設置 f個^部件雜或_，並限舰㈣細轉動轉祕纖構” 提兩多鋪爽部件之縮徑或擴徑動作的穩定性。例如，當多個筒夾 擴她態時，若呈現不存在相___之_:的崎，财縮徑動 不穩定之虞。 【實施方式】 以下基於實補’ _以實施本發明之最佳方式進行說明。 此外，細下實施射’係關丨的上τ方向作為 態的上下方向來進行說明。 【實施例1】 以下基於圖1〜圖7，對實施例1的夾緊裝置〗進行說明。 如圖1〜圖6所示，該夾緊裝置！基本上備有夾緊桿1〇、以及朝下方 夾緊驅動該«桿10的夾緊本體如。該絲裝置！通常細裝人於使 -方所準_卫個定塊2離態來供讀用。玉侧定塊2内隔著 間隔配置有多個夾«置卜並藉多個絲裝置丨的每—個將工件w 緊對象物）固定於工件固定塊2的載置面23上以供進行機械加工。惟 緊裝置卜亦能夠以下述形,4來使用：省私件固定塊2，並將央緊本體％ 201130597 的表面作為載置面。 與從該凹ί ’該a w具有向上端面⑽的凹部如、 面，在將該工件评藉夾緊裝面^f通孔外，外周面為例如圓筒 的上端面卿卜周面進行機械力f件固定塊2的狀態下’對工件w 孔5 Ϊ鬼起2至内内:之貫通孔4、以及該貫通孔4周圍的四個螺栓 係收納於收約3 收納空間⑪為止係形成貫通狀。夾緊本體30 ⑽内。收1間2b，並藉插通於螺栓孔5的四根螺栓6固定於工件固定 部3a夾内緊由體Γ :頭部U，形成於上端部分且可收納於凹 伸既二小於頭部11的直徑，且從頭部η下_下_ 又，以及卡合桿部13 ,從桿部12下端朝 既定範圍部分（從下端面朝上方 伸之诚於下端側 與卡合桿和具有制·直軸心）uHf®她’桿部12 則為圓形。 與卡干部13的水平剖面 頭部11係形成為其直徑大於貫通孔3b 可插入貫通孔3b、4内，且桿部12的下;^ 2二^桿部13 入夾緊本體30的捍插人孔3Ϊ内。耻 W 13則可裝卸地插 夾緊本體3〇側進行拉引驅動（夾緊，當使夾緊桿1〇朝 3a的底面朝下方按壓。此時，頭部11的下端面便將凹部 更為下方的位置。 μ P11的上_即位於較工件W的上端面 如圖1〜圖5所示，於卡合桿部13轴 個環狀卡合部〗4。各環狀卡合部14具有··錐狀^等1的四處形成有四 外周面Mb，從錐狀面14a上端朝上方形成為徑愈大，· A平行）’·以及面向上方的環狀卡合面14e㈣之轴心 上端更靠餘較小之-_位置處，形成為與絲桿w ^位置且較 呈正交。亦形成有圓筒面14d，其從此卡合面14c的軸ζΑ正父或略 有與錐狀面⑷之最小直徑相等的直徑。錐 。^^延，’且具 角為約20〜25度。自夾緊桿10之軸心Α起至外周面所夹的傾斜 定成與桿部12之半徑相等。此外，桿部12之下端部形成有與 201130597 同樣的錐狀面〗4e。 此外，央緊桿1〇雖將以頭部】】 說明’谁亦可為構成為於頭部n形成^按^工件W的構造為例進行 成於工件W上之母螺絲部的央緊桿1〇。、、糸。卜再將該公螺絲部鎖緊在形 夾緊裝置1之夹緊本體30 當於夾緊用致動器（ac_〇r));四 32 ’·油屢虹33 (相 回復機構36，第二回復 件如，第-引導機構35 ;第— 其次，就本體外殼32進行說明及轉動限制機構38等。 本體外喊32傷有：上壁部件 閉塞部件42，將紅部件4 ^其上端部分，·肢紅部件41，· 紅部件41之下端部分的螺絲孔而固定;及f部件43，螺合贿 筒壁部44，從其令央部分下端 件幻。上壁部件4〇則具有： 貫通孔4下稍秘_餅^ 人孔叫，以連通於 個螺栓孔46等。將插入多個螺拴孔46 H之才于插入孔31的上部；與多 的多個螺魏4岣，麵^=44==_7縣_缸部㈣ 筒壁部44下端部的二f件固疋亀部件41。 擴徑之往上方直徑愈大之用D_:的成錐有= 物祕咖…卜峨 ，缸。p件41上部（全長的約2/5部分） 其可上下移動自如地引導輔 第-壓缸孔5卜 =5部分）的内部則形成有第二塵缸孔^下部（全長的 餘，且可油密閉滑動自如地安裝有環狀f ^大於第—紅孔5!之 固定塊2與塵缸部件41形成有可將油 ° =活塞部53a。工件 狀油壓作動室54排出的油路54a、灿/此夕口 作動室54、或自環 件7a，壓红部件41則安裝有 IP件40钱有密封部 封部件8a，輔助環° ，丨衣狀活塞部件53安裝有密 稀助續狀活塞部件55則安裝有密封部件此。 女教有在 -人之，就油壓缸33進行說明。 夹退人方向（下方）夾緊驅動四個筒 、夹緊# Η) Μ置於本體外殼32内。賴缸33具有：環狀= 201130597 塞。P件53 ’ ％狀油墨作動室54 (相當 於該環狀罐_的表_ ^動ϋ«作用 室54係由本體外殼30的堡 =塵環^屢作動 塞部件55形成。環狀、、於^ 環狀活塞縣53，以及輔助環狀活 541)供給油麼越作動室54係自外部的油顧給源經由油路54a、 狀部：w朝上方延伸的筒 现、與形成於該二-朝上方延伸的筒狀部 55c，而活塞部55a盘筒===且自上方與筒狀部53b相向的環狀部 環狀部55c _周部；閉滑動自如地外嵌於筒狀部53b。 活塞部汾的外徑係_塞^3=^===導㈣。 則_輔助環狀活塞部件55 _面積約的_積 -人之+，就四個筒夾部件34進行說明。 並傳遞rs;:緊：T。於;藉平行移動縮徑而卡合於夹緊㈣ 離，並可將夾緊桿10朝上方^出緊時藉平行移動擴徑而從夾緊桿10隔 四個筒夾部件34驗本體外殼32 孔31-部分的筒夾内桿插入孔仙—，成化狀並形成有作為桿插入 的縮徑位置、與從夾緊才 、可刀換藉平行移動卡合於夾緊桿10 將-_成為援j緊 擴徑位置。四個筒夾部件34之往構為· 將體軸為％狀的環狀筒爽體沿圓周 厂4之、.、。構為. 四個筒夾部件34财：雜狀壁部=成四等刀。 縣大；筒狀部58，從該錐狀壁部57下端^其^端側部分且往上方直 該筒狀部58下端部分_ 卜_下方延伸；與凸緣部59，與 上方與凸緣部59相向。 、/為油壓缸33的環狀活塞部件53從 於四個筒夹部件34之筒狀部兄之 個環狀漏部64，射從上方 ==糾隔的四處形成有四 觸而按壓的環狀按壓部64。各環狀按壓&^四個環狀卡合部14面接 备愈大；外周面_，以從錐狀面64a下下^ .錐狀面咖’往上方直 、朝下方延伸的方式形成為與夾緊 12 201130597 的t A平仃以及面向下方的環狀按壓面64e，於外周面64b下端 的位置（較下端更#直較 囬〇牝下鈿 下方延伸，且具有二=崎面鉗，其從該按壓面64c之内周朝 58 〜具有’、錐狀 之最大直徑相等的直徑。此外，於汽狀邻 58之下㈣亦形成有與錐狀面64a同樣的錐狀面64e β ΊΡ 徑命34之錐狀壁部57 (上端側部分）的外周形成有往上方直 餘缩徑的ϋΓΓ狀活塞部件％之用於縮徑的錐狀引導面56之 面67 t ΐ 用於縮徑的錐狀面66上端朝上方延伸的sm201130597 VI. Description of the Invention: [Technical Field of the Invention] The present invention is a recording device, in particular, which is configured to be capable of clamping a rod relative to the clamp and inserting the clamp rod into the hole of the workpiece. And move the fixed clamping device. The straw is retracted from the side of the body to the fire [previous technique], and the conventional person 'in the various shapes and structures of the machine for machining, for example, jbush) *-shaped member or sleeve-like member, etc. For the thief with a large diameter hole and a small straight hole, the thief is widely used as shown in Fig. 18. The bolt type clamping device CL is fixed by, for example, a workpiece for mounting. The block 200 and a plurality of bolts (b〇1〇2〇1 are formed. A plurality of bolt holes 2〇2 are formed at appropriate intervals in the longitudinal direction of the workpiece fixing block, and the positions of the plurality of bolt holes are added. The workpiece W' inserts the bolt 2〇1 into the stepped hole 205 formed by the large diameter of each workpiece w and the diameter hole 204, and is screwed to the bolt hole 2〇2, and then the screw head is added to the large diameter. In the hole 203, the workpiece W of the stepped hole 2〇5 is pressed by the bolt head to be applied to the workpiece solid block. In this clamped state, the surface or the outer peripheral surface can be machined. Patent Document 1 has a small-to-four (four) squama fixed-skilled multi-faceted fixture. For example, Li Xian 1 Xi [g | Q ^ ^ The reading and positioning fixture has: abutment table, the adjustment member 'saws into the screw hole of the abutment component; the adjustment component and the workpiece surface; and the bolt component The screw head is clamped to the screw (four) of the groove of the base of the base (.table), and the abutment and the clamped gold light-made hybrid abutment. Pin (PuUStUd) approximately the same tie rod, the bolt (clamping rod) is screwed to the lower part of the workpiece, and the clamping device of the ball-locking type (BSU l〇ck) mechanism is detachably fixed The dry screw far-clamping device has: outer casing; oil pressure rainbow, with an annular piston disposed inside the outer casing; sleeve 201130597 tube 'the filament is _ lin, fine-grained to unclamp drive; multiple balls ( Steel ball), in the sleeve: tightly 15 and moving in the direction of the spring; and the annular operating part, which has the ability to smash the plurality of balls toward the radius and then press the rainbow through the plurality of balls to lower the sleeve. And moving through the axial side of the state of the driving direction of the annular operating member cylinder and engaging it with the pull rod screw The large-diameter square is drawn and fixed. ° ' Patent Document 3 discloses a fixed-cylinder clamp (cc) lletdiuck) a fixed block that is configured to detachably fix the pull pin. The front end of the collet respectively forms a claw portion, and is swung by the oil___ = one collet, so that the four claw portions are switched to the expanded diameter state and the reduced diameter is equal to the clamped state. After the claws are pulled in the claws, the four claws are reduced in diameter to clamp the pull pins by the four claws. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. 9-285925. Contents] [Problems to be Solved by the Invention] The screw-type recording device t, in order to record a workpiece, will consume a lot of labor to lock the multi-solid, plug 'and also difficult to make a paste nut wrench (nut coffee expansion) The screw check operation performed by the machine is speeded up. Although the chicks are mechanically machined in accordance with the negative conditions of the load conditions attached to the green state, the plurality of bolts of a plurality of workpieces are fixed to a certain torque (_ue ) Locking, there will still be a lower touch: the friction loss of the screw portion of the bolt, the adhesion of the fine ji 剌, or the friction caused by the difference in the state of the shank will cause variations in the force reduction of the clamped workpiece, so It is not possible to fix the workpiece with the desired clamping force corresponding to the workpiece and the valve clamping force cannot be properly controlled. In the workpiece positioning fixing jig of Patent Document 1, the same problem as the bolt type clamping device is present in order to fix the workpiece via a bolt. In addition, since the clamping gold > 1 part of the workpiece positioning fixture 201130597 is subtracted from at least a part of the upper end surface, the entire upper surface of the reading end surface cannot be applied to a workpiece such as machining. In the clamp device of the ball-type locking mechanism of Patent Document 2, since the contact portion of the ball and the screw thread is in surface contact without being in surface contact (correctly, arc contact), the surface of the contact portion is Extremely high 'shame-stained silk force reading, every time you record the lion bolt or the ball to keep the hole, it will produce indentation and difficult to continue high-resistant. - In the case of a spherical comparative mechanism, it is difficult to fix the clamping force as in the case of the clamp device because the miscellaneous miscellaneous mismatch is not made. The clamp device of Patent Document 3 is clamped by the material-clip (four) pull pin, and thus has the same problem as the tightening device of the ball-lock type mechanism attached to Patent Document 2. SUMMARY OF THE INVENTION An object of the present invention is to provide a clamping device which is capable of clamping a (4) recording device for fixing a clamping object to enhance the recording force and to properly control the recording force to improve durability. [Means for Solving the Problem] The tightening device is provided with: a clamping body having a rod insertion hole into which a clamping rod can be inserted from an upper portion, and a longitudinal screw which is detachable from the rod insertion hole, and is tightly touched The main body side retracts and drives the «rod_Dingsi County object", wherein the screw rod has a plurality of annular engaging portions formed at a plurality of axial directions thereof, and the wire body has: a plurality of The component is formed by inserting a hole into the hole of the hole, and the square core of the hole is expanded by the parallel movement, and the plurality of annular pressing portions formed at a plurality of positions in the axial direction thereof are used for clamping; The actuator 'is used to drive the plurality of collet members and the inflamed rod in a direction of retreating; and the first mechanism' is used to record the crane by the ship H to reduce the number of pieces A plurality of pieces are fed in such a manner that a plurality of annular pressing portions are engaged with the upper end of the ring-shaped engaging portion, and when the plurality of collet members are turned to the upper axis, the plurality of tubes are cooled. = expanding the diameter and guiding the plurality of annular pressing portions from the plurality of annular engaging portions to guide the plurality of collets, in the tight device, The plurality of collet members that are formed in a ring shape can be reduced in diameter or expanded in parallel, and a plurality of annular pressing portions are formed at a plurality of positions in the axial direction of the plurality of collet members by the actuator When the drive is recorded, a plurality of annular reduction portions are engaged with a plurality of annular engagement portions formed at a plurality of positions in the axial direction of the clamp. Therefore, it is possible to significantly (4) ring press and 201130597 [Effects of the invention] The _ direction clamp device is configured to be arranged in a ring shape, and the plurality of cylinders have a lower force and a lower force. The singularity '2' presses the area of the contact portion of the °p and the soil-shaped engaging portion to maintain the surface pressure at the endurance of the clamping device, and can accurately clamp the clamping force by the driving force of the (4) actuation 11 Force to produce a stable clamping force. The movable knife is correct. Since the clamping is released, the first guiding mechanism is used to clamp the clamping rod into the hole of the workpiece. In addition to the structure of the present invention, the following various structures may be used: (a) each of the annular pressing portions has an annular pressing surface facing downward or orthogonal to the axis of the clamping rod. Each of the engagement portions has an annular engagement surface that faces upward in contact with the annular viewing surface. According to this configuration, since each of the pressing portions has an annular pressing surface that faces downward or slightly orthogonal to the axis d of the spool, each of the Wei engaging portions has a surface that is pressed in contact with the annular pressing surface. Since the upper annular engagement surface is provided, the transmission force of the clamp drive generated by the clamp actuator can be increased to the transmission scale of the screw. (8) The clamping actuation n is constituted by a fluid pressure cylinder having an annular piston member and an annular fluid embossing chamber for instructing the piston component of the county to be closed, and providing a lifting clamp. The plurality of collet and the miscellaneous piston member of the calendar cylinder are returned to the first return mechanism of the unclamping position. According to this configuration, the ring-shaped piston member of the fluid pressure cylinder can be returned to the un-clamping position by the first returning mechanism when the clamping is released. (c) the fluid pressure cylinder is slidably and externally fitted to the annular piston member, and has an auxiliary annular piston which is pressed by the annular fluid pressure acting chamber in the lower side, the clamp The body casing of the tight body has a portion of the upper wall portion forming the rod insertion hole, and the first guiding mechanism 201130597 = the tapered surface of the side ==== diameter, respectively formed in a plurality of collet-shaped portions a taper-shaped guide surface for reducing the diameter of the inner surface of the L and the inner peripheral surface is formed in the auxiliary shape + 7 portions and is subjected to a wire transfer in the flow cylinder to guide the plurality of cylinders The diameter reduction of the member, and the tapered guide surface for expanding the diameter, are formed in the expansion of the household t. 'Because the nth substructure has the upper end portion of the plurality of limb members == and the cone for expanding the diameter The surface is formed on the two sides of the upper end of the auxiliary annular piston. Therefore, it can be combined with the lowering of the plurality of collet members to reduce the diameter of the frame and the tapered guide for the chick. The surface is formed in "there is not =: ring:: plugged in: ===^^ =: two ===:= to the inner peripheral portion of the flange portion formed in the plurality of the same clip member and toward ': pressure = :=动_状卡合...Simplified bullet "二""According to =:=:3⁄4 The second guide that elastically pushes the ring-shaped spring of the ring-shaped engaging part: the second is the second county machine - the age of the county - ? (1) The plurality of collet members have a flange portion formed in the lower end portion of the hydraulic cylinder, and the mth: the cow is opposed to the direction from above. The surface is formed on the annular piston member and the tapered pressing surface abuts against the cone according to the structure, and the smaller the diameter of the plurality of collet members is provided by the provision of the shaped button. Sewing, cone-shaped pressing (four) third introduction secret, heart & +831 4 / sudden grasp of the foundation of the help of the first - guidance mechanism is good __ pieces of the reduction of the movement of the third guidance mechanism strong multiple The collet member has an annular piston member of the fluid pressure cylinder formed at a flange portion of the lower portion from the upper side, and a heterocyclic ring on the surface of the flange portion According to this structure, the shaft center is provided with f parts or _ between the flange portion of the plurality of collet members and the annular piston member, and the ship is limited to four (four) fine rotation and secret fiber structure. The stability of the reduction or expansion operation. For example, when a plurality of collet expands her state, if there is no _:_ of the phase _: [Embodiment] Hereinafter, the best mode for carrying out the present invention will be described based on the actual compensation. The upper τ direction of the radiation system is described as a vertical direction of the state. Example 1 Hereinafter, the clamp device of the first embodiment will be described based on Fig. 1 to Fig. 7. As shown in Fig. 1 to Fig. 6, the clamp device basically has a clamp lever 1〇 and a downward direction. The clamping body of the «rod 10 is clamped and driven. For example, the wire device is usually arranged in a state in which the stator is placed in an open state for reading. The jade side block 2 is disposed at intervals. A plurality of clips are provided, and each of the plurality of wire devices 固定 is fixed to the mounting surface 23 of the workpiece holding block 2 for machining. Descriptive, 4 to use: the sturdy piece fixed block 2, and the surface of the central tight body % 201130597 as the mounting surface. With the concave ί 'the aw has the upward end face (10) of the concave part such as, the surface, the workpiece The outer peripheral surface is a mechanical surface such as the upper end surface of the cylinder, for example, by means of a clamping surface. In the state of the force member fixing block 2, the through hole 4 and the four bolts around the through hole 4 are housed in the receiving space 3, and the four bolts around the through hole 4 are housed in the receiving space 3 The utility model is formed in a penetrating manner, and is clamped into the main body 30 (10), and is received by a pair of 2b, and is fixed to the workpiece fixing portion 3a by the four bolts 6 inserted through the bolt hole 5, and is tightly formed by the body Γ: the head U, and is formed at the upper end portion. It can be accommodated in the concave portion and is smaller than the diameter of the head portion 11, and from the head portion η lower_lower _, and the engaging rod portion 13, from the lower end of the rod portion 12 toward the predetermined range portion (from the lower end surface upwards to the lower end The side and the engaging rod and the straight shaft are provided. The uHf® her 'rod portion 12 is circular. The horizontal cross section head 11 of the card trunk portion 13 is formed to have a diameter larger than the through hole 3b and can be inserted into the through hole 3b, 4, and the lower portion of the rod portion 12; the 2 2 rod portion 13 is inserted into the insertion hole 3 of the clamp body 30. The shame W 13 is detachably inserted into the clamping body 3 进行 side for pulling drive (clamping, when the clamping lever 1 〇 is pressed downward toward the bottom surface of 3a. At this time, the lower end surface of the head 11 will make the recess more The upper position of the μ P11 is located on the upper end surface of the workpiece W, as shown in Figs. 1 to 5, and the annular engagement portion is 4 in the engagement lever portion 13. Each of the annular engagement portions 14 Four outer peripheral surfaces Mb are formed at four places including the tapered shape, and the axial direction is increased from the upper end of the tapered surface 14a to the upper side, and the axis of the annular engaging surface 14e (four) facing upward is formed. The upper end is further located at the smaller -_ position, and is formed to be orthogonal to the screw w ^ position. A cylindrical surface 14d is also formed which has a diameter equal to the smallest diameter of the tapered surface (4) from the abutment of the engaging surface 14c. Cone. ^^延,' and the angle is about 20 to 25 degrees. The inclination from the axis of the clamping rod 10 to the outer peripheral surface is set to be equal to the radius of the rod portion 12. Further, the lower end portion of the rod portion 12 is formed with the same tapered surface 4e as that of 201130597. In addition, the central locking rod 1 will be described as a head.] The structure of the female screw portion formed on the workpiece W may be taken as an example of a structure in which the workpiece W is formed in the head n. 1〇. , 糸. Then, the male screw portion is locked to the clamping body 30 of the clamp device 1 as a clamping actuator (ac_〇r)); four 32'·oil repeating rainbow 33 (phase recovery mechanism 36, The second returning member is, for example, the first guiding mechanism 35; secondly, the main body casing 32 is explained, the rotation restricting mechanism 38, etc. The external body shouting 32 is wound: the upper wall member blocking member 42, the upper portion of the red member 4 Partially, the limb red member 41, the screw hole of the lower end portion of the red member 41 is fixed; and the f member 43 is screwed to the wall portion 44 of the bribe, from which the lower end member is illusory. The upper wall member 4〇 has : The hole 4 is slightly secreted _ cake ^ manhole is called to connect to the bolt hole 46, etc. The plurality of screw holes 46 H are inserted into the upper part of the insertion hole 31; and a plurality of snails , face ^=44==_7 county_cylinder part (4) The lower part of the tube wall portion 44 is a two-piece solid part 41. The larger the diameter of the expansion is, the larger the diameter is D_: the cone is = the secret coffee... Di, cylinder, the upper part of the p-piece 41 (about 2/5 of the full length), which can be freely moved up and down to guide the auxiliary-cylinder hole 5b = 5 part), the second dust cylinder hole lower part is formed ( full length Further, the fixed block 2 having the ring shape f^ greater than the first red hole 5! and the dust cylinder member 41 may be formed by oil-tightly slidably and slidably formed with the oil portion = the piston portion 53a. The workpiece-like oil pressure chamber 54 The discharged oil passage 54a, the Can/Even operation chamber 54, or the self-looping member 7a, the red-pressing member 41 is mounted with the IP member 40, and the sealing portion sealing member 8a, the auxiliary ring, and the garment-like piston member 53 are mounted. There is a sealing member attached to the densely-assisted piston member 55. The female teaches the human-made hydraulic cylinder 33. The clamping direction (lower) clamps and drives the four cylinders, clamping #Η) The crucible is placed within the body casing 32. Lai cylinder 33 has: ring = 201130597 plug. P piece 53 '% ink actuating chamber 54 (corresponding to the table of the ring can _ ϋ 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用 作用In the ring-shaped piston county 53 and the auxiliary ring-shaped activity 541), the oil-operated chamber 54 is supplied from the outside to the source via the oil passage 54a, the portion: w extending upward, and formed in the second - a tubular portion 55c extending upward, and the piston portion 55a has a cylindrical portion === and an annular portion annular portion 55c_peripheral portion facing the tubular portion 53b from above; and is slidably and slidably fitted to the tubular portion 53b. The outer diameter of the piston portion is _ plug ^ 3 = ^ = = = guide (four). Then, the auxiliary annular piston member 55_the area is about _product - the person's +, and the four collet members 34 will be described. And pass rs;: tight: T. When the clamping rod 10 is pushed upwards by the parallel movement, the clamping rod 10 can be moved upwards by parallel movement to expand the diameter and the four collet members 34 are separated from the clamping rod 10 to check the body casing. 32 hole 31-part of the collet inner rod insertion hole xian, formed into a shape and has a reduced diameter position as a rod insertion, and the parallel movement of the cutter can be transferred to the clamping rod 10 in parallel with the cutter. _ Become a j-direction expansion path. The four collet members 34 are configured to have an annular cylinder body having a body axis of % in the circumferential direction of the factory. The structure is as follows: Four collet parts 34: Miscellaneous wall = = four equal knives. The county is large; the tubular portion 58 extends from the lower end portion of the tapered wall portion 57 to the upper end portion of the tubular portion 58 and extends downward; and the flange portion 59, the upper portion and the flange portion Part 59 is opposite. The annular piston member 53 of the hydraulic cylinder 33 is formed by four annular contacts 64 of the tubular portion of the four collet members 34, and is formed by four touches from the top==correction. The annular pressing portion 64. Each of the four ring-shaped engaging portions 14 has a larger surface contact; the outer peripheral surface _ is formed so as to extend downward from the tapered surface 64a and the downwardly extending downward direction. The position of the lower end of the outer peripheral surface 64b (the lower end is more straight than the lower end of the lower cymbal), and has a two-size surface clamp, The inner circumference 58 of the pressing surface 64c has a diameter equal to the largest diameter of the tapered shape. Further, a tapered surface 64e β ΊΡ similar to the tapered surface 64a is formed under the vaporous neighbor 58 (four). The outer circumference of the tapered wall portion 57 (upper end portion) of the diameter 34 is formed with a surface 67t of the tapered guide surface 56 for reducing the diameter of the meandering piston member which is reduced in diameter upward. The upper end of the tapered surface 66 extends upwards sm
之用於擴蚁錐㈣丨導面45之驗雜的錐狀面68。 〇P 次之，就第一引導機構35進行說明。 第一引導機構35係於夾緊驅動時使四個筒夾 =狀=解除夾«使，夾部件34平行 t第一引導機構35係構成為：於由油壓缸33進行 廣1 四個筒夾部件34驗並使四個雜按壓部64從上合 2 = 部Μ的方式引導四個筒夹部件34，並且於解除夾緊時，使四 動之際’赠四個物卩件34触並使四個環狀按壓部64從 四個環狀卡合部14隔_方式引導四個肢部件34。 從 构_中第-將機構35勤軸細靖蝴 的錐狀面66制於擴㈣錐狀面68、辅助環狀活 ^ ==T6、與上壁部件4°之筒壁部44之用^ 圖1所示之剖面圖中上述四個面66、_、 次之’就第一回復機構36進行說明。 的係於解除夾緊之際，使四個筒夾部件34與油壓紅33 的％狀活塞藉53朝上方回復至解除夾緊位置，其結構係如下所述 活塞部件53之活塞部说的内側形成有收納四個筒夹部件％之凸 的第-收納孔60、與連通於該第-收納孔⑼下端的第二收納孔61。第二 收納孔61之直徑略大於第—收納孔6〇之直徑，第二收納孔61 : 中心孔70之環狀的環狀板71。環狀板71係卡止於第二收納孔61上端的臺 13 201130597 ^ 13 ’以允許四個筒夾部件34之凸緣部59朝 所述第二廢缸孔52内，環狀板71盘閉^^方向移動。 加麗空氣供給源經由空氣通路瓜、^ ^間形成有由外部的 彈菁收納室72中安裝有第一_線圏彈簣73、與菁收納室72，該 73外側的第二壓縮線圈彈簧74 、：繞忒弟-壓縮線圈彈簧 由環狀板7!即可朝上方（解除夾緊方向）彈性^^圈^簧73、74，經 個筒夾部件34。 屡衣狀，舌塞部件53與四 次之，就第二回復機構37進行說明。 第二回復機構37係於解除夾緊之 置，其結構係如下所述：部件42之$至解除夹緊位 起D部42a，且該凸起部仏之 有朝上側突出的凸 夾緊桿ϊ〇回復的桿支樓部件76，桿支^^成有貫通孔75 1置用以使 上壁的凸緣76a，凸起部42a的内部^下有卡疋於凸起部仏之 彈性推壓桿捕詩76 _桿1G __=L877^絲有朝上方 下端係由附有孔的彈簧承接具79讀著 =圈彈簧％ nng) 80支撐著。 汽$按异/y則由擋環（stop 次之，就轉動限制機構38進行說明。 狀％係、設於四個筒夹部件34之凸緣部59的表面部分虫環 ”處。__構38允許__ 徑衣 件％繞軸心旋轉，其結構係如下所述：在各筒^^ 環周方向的中央部分形成有朝向半徑方向的限㈣Μ， 個彳53之活塞部533的水平壁部則形成有與四個限制槽8】的每 -=的兩個半球凹部82，於該各組半球凹咖 ’以使兩顆鋼球83可旋轉地卡合於相對應的限制槽81内。 次之，就空氣吹送機構進行說明。 =除夾緊狀態下將夾緊桿1G拔出後，便由空氣通路％ '现供給 加壓工氣’並按彈簧收納室72、環狀板71的中心孔7〇、筒失内桿插入孔 201130597It is used to expand the ant cone (4) and the tapered surface 68 of the guide surface 45. Next, the first guiding mechanism 35 will be described. The first guiding mechanism 35 is configured to cause four collets to be in the state of clamping drive. The clamping member 34 is parallel. The first guiding mechanism 35 is configured to be widened by the hydraulic cylinder 33. The clip member 34 inspects and guides the four collet members 64 to guide the four collet members 34 from the upper joint 2 = portion, and when the grip is released, the four movements are provided The four annular pressing portions 64 are guided from the four annular engaging portions 14 to guide the four limb members 34. The cone-shaped surface 66 of the mechanism 35 is formed on the expanded (four) tapered surface 68, the auxiliary annular motion ^ == T6, and the tubular wall portion 44 of the upper wall member 4°. ^ In the cross-sectional view shown in Fig. 1, the above four faces 66, _, and the second are described with respect to the first return mechanism 36. When the clamping is released, the four collet members 34 and the %-shaped piston of the hydraulic pressure red 33 are returned upward to the un-clamping position by the 53, and the structure is as follows for the piston portion of the piston member 53. A first accommodation hole 60 that accommodates the convexity of the four collet members % and a second accommodation hole 61 that communicates with the lower end of the first accommodation hole (9) are formed inside. The diameter of the second receiving hole 61 is slightly larger than the diameter of the first receiving hole 6〇, and the second receiving hole 61 is an annular annular plate 71 of the center hole 70. The annular plate 71 is locked to the table 13 201130597 ^ 13 ' at the upper end of the second housing hole 61 to allow the flange portion 59 of the four collet members 34 to face the second waste cylinder hole 52, the annular plate 71 disk Move in the ^^ direction. The Garley air supply source is formed between the air passages, and the first elastic coil housing 73 is attached to the outer elastic storage chamber 72, and the second storage coil spring 72 is provided on the outer side of the 73. 74: The winding coil spring is compressed by the annular plate 7! upward (the clamping direction is released), and the elastic springs 73, 74 are passed through the collet member 34. The second return mechanism 37 will be described in the case of a multiple garment, the tongue plug member 53 and four times. The second returning mechanism 37 is configured to release the clamping, and the structure is as follows: the member 42 is up to the unclamping position from the D portion 42a, and the convex portion has a convex clamping rod protruding upward. The returning lever member 76 of the cymbal is formed with a through hole 75 1 for the flange 76a of the upper wall, and the inner portion of the convex portion 42a is elastically pushed against the convex portion 仏The pressure bar catches the poem 76 _ rod 1G __= L877 ^ wire has a downward facing upper end by a spring bearing with a hole 79 read = ring spring % nng) 80 support. The steam is equal to /y, and is blocked by the retaining ring (the second is the rotation restricting mechanism 38. The % is provided at the surface of the flange portion 59 of the four collet members 34). The structure 38 allows the __ diameter of the garment member to rotate about the axis, and the structure is as follows: a central portion of the circumferential direction of each cylinder is formed with a limit (four) 朝向 toward the radial direction, and a level of the piston portion 533 of the cymbal 53 The wall portion is formed with two hemispherical recesses 82 of each of the four restricting grooves 8], and the two sets of hemispherical pockets are rotatably engaged with the corresponding restricting grooves 81. Next, the air blowing mechanism will be described. = After the clamping rod 1G is pulled out in the clamped state, the air passage %' is now supplied with pressurized working gas and presses the spring housing chamber 72 and the annular plate. 71 center hole 7〇, tube lost inner rod insertion hole 201130597
Mb、上部桿插入孔_31a、貫通孔4之壞岸咱々 並防正加工碎屑等異物附著。除去油壓幻3的:二：:二等= 上述同樣進行空氣吹送以防止加工碎屬滲入。 騎夹緊之際，亦與 ^駐就以上所說明之夾緊裝置丨的伽、效果進行說明。 部件置1係於包括圖1所示之解除夹緊狀態、圖6所示之四個筒夾 娜射_、她麻峨«、下作動。 :=:室54的，，環狀活塞部㈣、輔二= 部件物持擴徑狀態，且四個筒1=::= 的内徑係大於夾緊桿10的外徑，故 體同^^广孔31b 於此狀態下載置工件w之ί絲本體3G來裝卸夾緊桿10。 將^ : f朝上方拔出，而在載置卫件Μ 4與桿插入孔31内’即呈現圖1之狀態。 近用= 筒夾部件34之級雛的雜面66平行靠 2面5十6，並曰使用於擴徑的錐狀面⑽平行靠近用於擴徑 上ΡΓ位置*自終後’夾緊桿1G便藉第二回復機構37保持於如圖示之 小於之頭部11下端起至凹部3a之底面為止的距離係 、^支樓轉76之凸緣部76a與彈菁承接具79之間的距離。 則由於1圖/班所=’只要將油壓供給至油壓缸33的環狀油壓作動室54， 的狀態，Γ部件55係藉油壓朝上方推壓，故呈保持上限位置 錐狀^ 66由用衣持部件53係下降，故四個筒夾部件34 ’其用於縮徑的 = Γ53 Ζ的錐狀引導面％引導朝縮徑側平行移動，而與環狀 ^ Α 此時，四個筒夾部件34係以使其軸心與夾緊桿10 之軸心Α大致重合的狀態藉平行移動來縮徑。 如Γ所示’四個筒夹部件34的四個環狀按壓部64從上方卡合 卜狀卡合部14並於各環狀按壓面6如所對應的環狀卡 :角係設4與Z觸狀態。此外，錐狀面14a、64a與錯直方向所夾的傾 狀又：腎:·面66、68之傾斜角約略相等。又’於圖6之夾緊中途 狀態下’樣干1G的頭部u尚未按壓工件w。 如上所述田四個筒夹部件34呈縮徑狀態時，如圖7所示，環狀活塞 15 201130597 部件53、獅環狀活塞部件S5以及四個肢部件34—難下方夹緊驅動， 頭部11便呈強力按壓卫件W的夾緊狀態。於解除絲之際，若除去環狀 油壓作動室54的油壓，則藉第―、第二回復機構％、37的回復力而使環 狀活塞部件53、輔助環狀活塞部件％及四個料部件％ 夾緊驅動而呈現圖6之狀態。 解& 若環狀活塞部件53、辅助環狀活塞部件55及四個筒夹部件％進 ^升’則四個触部件;34之胁擴徑的錐狀面68便 導：筒鄉4朝上方移動的同時藉平行移動擴』= 圖i之狀態。此時，四個筒夾部件34係以使其車由心 大致重合雜鮮行移動。 ^ 根據該夾緊裝置1可得如下的效果： 由於夾緊驅動時係構成為經由第一引_構35使四個筒夹部件3 平行移動驗，硫按壓部64從上計合於 故可格外強化夾緊力’同時可增大雜按壓部 卡=二 部的面積並將面壓力維持於低程度而提高夾緊裝置ι的 予油壓缸33之油壓的壓力可輕設定絲力的大小而力故 可產生獻的夾緊力。例如，可使其形成以與制狀 的負荷條件按壓工件W的狀絲進行機械红。 、彳了條件相同 由於各環狀按㈣64具有與絲桿1G的細A正㈣略呈正交之面 向下方的環狀按壓面64c，且各職士人加1/( a 一 止乂之面 觸並按壓之面向上方的環狀卡有與環狀按壓面撕面接 由14c，故可k尚油壓缸％所產丰夕水钞 驅動的驅動力傳遞至夾緊桿1G的傳遞效柄 =火緊 由於解除__第—_構35使_=的、^行 動擴徑而使©㈣狀鍾部64從_ 丨仟4藉干仃移 孔3b的狀態來進行夾緊。 通I工件W之貫通 由於第一引導機構35且有.形 狀面66及躲雜轉狀㈣、部件34之跡縮徑的錐 的錐狀引導面56、與形成於本體外殼& 塞部件55之用於縮徑 導面45，故可崎驅_細_輪㈣下降=== 201130597 ’並可於解除线時與四個筒失部件34的上升連動而使四個筒 tt ° J 33 34細徑或擴禋的專用致動器之故而有利。 所不’呈擴錄態時筒夾部件34彼此間存有間隙34a，呈縮柄 tt4 ΐ f求地縮小。由於設置有轉動限制機構38而允許四個筒爽； UTit擴徑，並限制四個筒夾部件34繞絲軸心旋轉，故可均等地 定性:》牛34彼此間的四個間隙34a而未損及縮徑動作與擴徑動作的穩 【實施例2】 接著’基於圖8，就實施例2之夾緊裝置u進行說明。 實施Ξ =裝：U係採用複動型油壓缸3M來取代所述油壓缸幻。在與 盆等之咖目"(Π魏構要素上標記相_參麟號間絲，並省去對 表示^«狀態，_右半部分職示絲驅射途_ _左以刀 位於== 立於環狀活塞部件似上側的環狀油壓作動⑽ 筒夹^ 讀，綱料增四個 密封的密封部件87，桿支樓^件76 ^八’環狀板7Μ外周部安裝有油密閉 的中心孔裏内，中閉滑動自如地插入環狀板71Α Μ ^ 孔7〇A的内周部則安裝有密封部件88。第一 構36A係由關作動室似與環狀板—等構成。 口復機 撐部係开 1 成為厚壁’其上壁部安裝有將閉塞部件42A與;T支 供 ，日迷的密封部件89。其後，設置將油壓從外部的、、由壓徂I、s 果係與實即之夹;4=°該夹緊裝置1Α之作用、效 似的油壓朝上方剛=動置雜大同。惟，由於係藉供給至關作動室 化回復力。又可構成為:設】=:53八與四個筒夾部件34，故可強 將加壓空氣供給至該空氣作g：1作動室以取代上述油壓作動室似，並 加屡驗社彈敎魏^下端部，則 【實施例3】 内的通路763而流向四個筒夹部件34内部。 17 201130597 繼之’基於圖9，就實施例3之爽緊裝置1B進行說明。 該夾緊裝置1B係將實施例2之夾緊裝置认的一部分改變，故在 施例2相同駐要結構要素上標記相同的參簡號關表示，並省去 等之說明’僅料_結構要素進行制。又於圖9 _，圖的左八矣 示解除夾緊H騎右铸分職示絲驅動巾途狀態。 油壓缸33A之環狀油壓作動室S4B内安裝有壓縮線圈彈菁91 =線圈彈簣91朝下方彈性推壓環狀活塞部件別，並朝上方彈性推壓^ 狀活塞部件55B。可構成為以環狀油壓作動室5犯之油壓產生= =m並以壓縮線圈彈簧91產生夾緊驅動力的—部分。於該夾緊 2 ΓΛ 油壓作動室54B之油壓因漏油而降低時，仍可維持2 壓縮線圈彈簧91之彈性力的夾緊驅動力。 、' ’、 【實施例4】 次之’基於圖10，就實施例4之夾緊裝置lc進行說明。 該夾緊裝置1C係省去所述夾緊裝置！之油壓虹％的輔助 件55 ’並將形成於輔助環狀活塞部件& 兄: 夹緊驅動表轉除錢㈣，圖触半部分則表示 ，於所述四個筒姨件34C外周側之所述壓㈣件從 a係擴大至所述輔助環狀活塞部件55 ° 形成有用於縮徑之錐狀引導面56C。因—^外^部化 四個筒夾部件34C之錐狀壁部57c㈣^ β &導機構35C便由形成於 壁部件40之上壁部44的用於擴徑m弓導面56C、與形成於上 之錐狀壁部57C的外徑被縮小，並形=3=冓成°四個部件⑽ 的外周圓筒面67C。僅由省去輔助環狀 之錐狀面68上端相連The Mb, the upper rod insertion hole _31a, the bad bank of the through hole 4, and the foreign matter such as the processing debris are adhered. Remove the oil pressure illusion 3: 2:: second class = The above is also carried out by air blowing to prevent the infiltration of the processing. At the time of riding and clamping, the effect of the clamping device described above is also explained. The component is placed in a state including the unclamped state shown in Fig. 1, the four collets shown in Fig. 6, the numbness, and the lower movement. :=: chamber 54, the annular piston part (four), the auxiliary two = the component is in the expanded diameter state, and the inner diameter of the four cylinders 1 =::= is larger than the outer diameter of the clamping rod 10, so the body is the same ^ The wide hole 31b is in this state to download the wire body 3G of the workpiece w to load and unload the clamp rod 10. The ^ : f is pulled upward, and in the state in which the guard Μ 4 and the rod insertion hole 31 are placed, the state of Fig. 1 is exhibited. Near-use = the face 66 of the collet member 34 is parallel to the two sides 5:6, and the tapered surface (10) used for the expansion is parallel to the position for expanding the diameter of the upper side. 1G is held by the second return mechanism 37 between the lower end of the head portion 11 as shown in the figure and the bottom surface of the recessed portion 3a, and between the flange portion 76a of the branch line 76 and the elastic cresting member 79. distance. In the state in which the hydraulic pressure is supplied to the annular hydraulic operating chamber 54 of the hydraulic cylinder 33, the crucible member 55 is pressed upward by the hydraulic pressure, so that the upper limit position is tapered. ^66 is lowered by the wearing member 53, so that the four collet members 34' for the diameter reduction = Γ53 Ζ the tapered guiding surface % guides the parallel movement toward the reduced diameter side, and the ring ^ Α The four collet members 34 are reduced in diameter by parallel movement in a state where their axial centers substantially coincide with the axial center of the clamp rod 10. As shown in FIG. 2, the four annular pressing portions 64 of the four collet members 34 are engaged with the engaging portions 14 from above and on the respective annular pressing faces 6 such as the corresponding annular card: the angle system 4 and Z touch status. Further, the inclined faces of the tapered faces 14a, 64a and the direction of the misalignment are again: the inclination angles of the kidney: faces 66, 68 are approximately equal. Further, in the middle of the clamping state of Fig. 6, the head u of the sample 1G has not pressed the workpiece w. When the four collet members 34 are in a reduced diameter state as described above, as shown in FIG. 7, the annular piston 15 201130597 member 53, the lion ring piston member S5, and the four limb members 34 are hardly driven and driven under the head. The portion 11 is in a clamped state in which the guard W is strongly pressed. When the wire is removed, if the hydraulic pressure of the annular hydraulic pressure actuating chamber 54 is removed, the annular piston member 53, the auxiliary annular piston member, and the fourth are actuated by the restoring forces of the first and second return mechanisms % and 37. The stock component % is clamped to drive and assumes the state of Figure 6. Solution & If the annular piston member 53, the auxiliary annular piston member 55, and the four collet members are "increase", then the four contact members; 34 the tapered surface 68 of the diameter expansion guide: the tube town 4 When moving upwards, use parallel movement to expand the state of Figure i. At this time, the four collet members 34 are moved so that the vehicle is substantially coincident with the heart. According to the clamping device 1, the following effects can be obtained: Since the clamping drive is configured to move the four collet members 3 in parallel via the first guiding member 35, the sulfur pressing portion 64 is taken from the above. Extraordinarily strengthening the clamping force' can increase the area of the hybrid press part card = two parts and maintain the surface pressure to a low level to increase the pressure of the hydraulic pressure of the pre-cylinder 33 of the clamping device ι. The size and force can produce the clamping force. For example, it is possible to form a mechanical red which is pressed against the workpiece W under load conditions of the manufacturing state. The condition is the same. Since each ring (4) 64 has a ring-shaped pressing surface 64c which is slightly orthogonal to the thin A positive (four) of the screw 1G, and each person adds 1/( a 乂 乂 face The upward-facing annular card that is pressed and pressed is connected to the tearing surface of the annular pressing surface by 14c, so that the driving force of the driving force of the Fengqi water bank produced by the hydraulic cylinder can be transmitted to the clamping lever 1G. The fire is tightened due to the release of the _____ structure 35 to make the _= action, and the © (four) clock portion 64 is clamped from the state of the _ 丨仟 4 by the boring hole 3b. The tapered guiding surface 56 of the cone which is formed by the first guiding mechanism 35 and having the shape surface 66 and the misaligned shape (four), the diameter of the member 34, and the plug portion 55 formed in the body casing & The diameter guide surface 45, so it can be smashed _ thin _ wheel (four) down === 201130597 'when the line is released, the four cylinders tt ° J 33 34 can be thinned or expanded in conjunction with the rise of the four cylinder loss members 34. It is advantageous for the dedicated actuator of the crucible. When not in the expanded state, the collet members 34 have a gap 34a therebetween, which is reduced in size by the reduction handle tt4 。 f. The structure 38 allows four cylinders to be cool; the UTit expands the diameter and restricts the four collet members 34 to rotate around the axis of the wire, so that the two cylinders 34a can be equally defined: the four gaps 34a between the cows 34 are not damaged and the diameter is reduced. Stabilization of the expansion operation [Embodiment 2] Next, the clamping device u of the second embodiment will be described based on Fig. 8. Implementation Ξ = Installation: U-series uses a double-acting hydraulic cylinder 3M instead of the oil pressure Cylinder illusion. In the pot with the pot and other things (" Π 构 要素 要素 要素 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The knife is located at == the annular oil pressure acting on the upper side of the annular piston part (10). The cylinder clamp ^ read, the material is increased by four sealed sealing parts 87, the rod branch piece 76 ^ eight 'annular plate 7 Μ outer peripheral part The inner hole is slidably inserted into the annular hole 71 Α Μ ^ The inner peripheral portion of the hole 7 〇 A is attached with a sealing member 88. The first structure 36A is closed by the actuating chamber. The plate-and-beautiary structure is formed. The mouth-and-retaining machine is opened 1 to be a thick wall, and the upper wall portion is provided with a sealing member 89 for occluding the blocking member 42A and the T branch. Set the hydraulic pressure from the outside, and press the I, s fruit system and the actual clamp; 4 = ° The action of the clamping device 1 、, the effect of the oil pressure is upwards = the same. Since it is powered by the supply to the chamber to restore the force, it can be configured as: ==53 and four collet members 34, so that pressurized air can be strongly supplied to the air as a g:1 actuating chamber instead. The hydraulic pressure acting chamber is similar to the lower end of the magazine, and the passage 763 in [Example 3] flows into the interior of the four collet members 34. 17 201130597 Following the implementation based on Fig. 9 The tightening device 1B of Example 3 will be described. The clamping device 1B changes a part of the clamping device of the second embodiment, so that the same reference structural elements are marked with the same reference number in the second embodiment of the embodiment 2, and the description of the device is omitted. Elemental system. In addition, in Fig. 9 _, the left side of the figure shows the state of releasing the clamped H riding right casting machine to drive the wire drive. A compression coil spring 91 is attached to the annular hydraulic operation chamber S4B of the hydraulic cylinder 33A. The coil magazine 91 elastically presses the annular piston member downward, and elastically presses the piston member 55B upward. It can be configured such that the hydraulic pressure generated by the annular chamber hydraulic pressure chamber 5 generates ==m and the compression coil spring 91 generates the clamping driving force. When the hydraulic pressure of the clamping chamber 2B is lowered by the oil leakage, the clamping driving force of the elastic force of the two compression coil springs 91 can be maintained. Next, the second embodiment will be described with reference to Fig. 10 for the clamp device lc of the fourth embodiment. The clamping device 1C eliminates the clamping device! The hydraulic pressure %% auxiliary member 55' will be formed on the auxiliary annular piston member & brother: the clamping drive table is removed from the money (4), and the touch half portion is indicated on the outer peripheral side of the four cylinder members 34C The pressure (four) member is expanded from the a system to the auxiliary annular piston member 55° to form a tapered guide surface 56C for reducing the diameter. The tapered wall portion 57c (four) of the four collet members 34C is formed by the upper wall portion 44 of the wall member 40 for expanding the diameter of the bow guide surface 56C, and The outer diameter of the upper tapered wall portion 57C is reduced, and the shape = 3 = the outer circumferential cylindrical surface 67C of the four members (10). Only the upper end of the tapered surface 68 of the auxiliary ring is omitted
的結構。 f狀絲。卩件55即可賴«裝置1C 【實施例5】 18 201130597 t Si11，就實施例5的夾緊裝置1D進行說明。 施例^相同的主要=^^4之夾緊裝置10的—部分改變，故在與實 等的·r7 姻的參照贿表示，並省去對其 干解除結構要素進行說明。又於圖11中，圖的左半部分表 '、解f火緊狀U的右半部分則表示夾緊驅動中途狀離。 導機====輔助四個筒夾部請擴徑的第二引 件34D之凸緣部的内^且^有•錐=動面95，形成於四個筒夹部 卡合^ 直讀大；獅卡合部件97，具有 ===峨崎㈣上方· ♦凸緣㈣下端部=的塞:^的内侧則安裝有卡定筒夹部件 35C 料機構94，因鱗除絲時便能_第—引導機構 == 擴:：筒央部件34D擴徑的擴徑動作，並穩定四個筒= 【實施例6】 次之，基於® 12，就實施例6的夾緊裝置1E進行說明。 該夾緊裝置1E係將實施例5之夾緊裝置m的 施例5相_主要結構要素上標 =边，故在與實 示解除夾緊狀態，圖的右半部分則表示夾緊驅動 ^圓的左半部分表 该夾緊裝置1E中設有夹緊驅動時辅助四個筒夹 59E的縮徑動作的第三引導機構1〇〇。 丁 ^匕下。卩之凸緣部 第三引導機構1〇〇備有形成於凸緣部59E表面 狀從動面ιοί、及以抵接於該錐狀從動面1〇1的 ^方直搜愈小的錐 53E的錐狀按壓面102。夾緊驅動時，不僅作用從^狀活塞部件 按壓面102沿凸緣部59E之錐狀從動面1〇1朝下方進〜。。卩件53ε之錐狀 朝爽緊桿H)之軸心幻則按壓的力’因此可輔助四力，亦作用 59E的縮徑動作並穩定縮徑動作。又設有與夾緊裝 °丨件ME之凸緣部 同樣的轉動限制機構38E。 、 ' 之轉動限制機構38 【實施例7】Structure. F-shaped wire. The clamp member 55 can be described as the clamp device 1D of the fifth embodiment in the apparatus 1C [Embodiment 5] 18 201130597 t Si11. The part of the clamping device 10 of the same main = ^^4 is changed, so that the reference to the actual r7 is indicated, and the description of the dry release structure is omitted. Further, in Fig. 11, the left half of the figure shows that the right half of the fire-shaped U is the middle of the clamp drive. Guide ====Auxiliary four collet parts Please expand the inner diameter of the flange part of the second lead piece 34D and have a cone = moving surface 95, which is formed in the four collet parts. Large; lion engagement component 97, with ===峨崎(四)上上· ♦ flange (four) lower end = plug: ^ inside is mounted with locking collet member 35C material mechanism 94, because the scale can be removed _First-guide mechanism== Expansion:: Expanding operation of the expansion of the core portion 34D, and stabilizing the four cylinders = [Embodiment 6] Next, the clamping device 1E of the embodiment 6 is explained based on the ® 12 . In the clamping device 1E, the fifth embodiment of the clamping device m of the fifth embodiment is superscripted with the main structural element = side, so that the clamped state is released in the right half of the figure, and the clamping drive is shown in the right half of the figure. The left half of the circle shows that the clamp device 1E is provided with a third guide mechanism 1 that assists the reduction operation of the four collets 59E during the clamp drive. Ding ^ 匕. The third guide mechanism 1 of the flange portion of the flange has a surface-shaped driven surface formed on the flange portion 59E, and a small tapered portion that abuts against the tapered driven surface 1〇1. The tapered pressing surface 102 of 53E. At the time of the clamp driving, not only the action from the pressing portion 102 of the ^-shaped piston member but also the tapered driven surface 1〇1 of the flange portion 59E is made downward. . The taper of the 53 53 朝 朝 朝 H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H Further, a rotation restricting mechanism 38E similar to the flange portion of the clamp fitting ME is provided. ''rotation limiting mechanism 38' [Example 7]
19 S 201130597 上半ΐ二部件34F之凸緣部59F的背面形成有可收納多顆鋼球82 上+柏上側矩形凹部104，環狀板則形成有可收納多顆鋼球82 了側矩形凹部（省略圖示），且四個筒夾部件34F的每一個中的上側矩步凹 與下側矩形凹部收納有多顆鋼球82。透過以上結構，即 個同央部件MF縮徑或擴徑，同時限制其等繞失緊桿之轴 【實施例8】 初 、圖17，就實施例8相關之用於縮徑或擴徑的致動器 進仃說明。例如’實施例4的絲裝置1C t係省去環狀活塞部件53的筒 iTL5-3b ’ Γ在由該省去所產生的空間與獻至其外側的擴大空間内，將圖 斤不之用於縮徑或擴徑的致動器11〇 (此相當於第一引導機構 ^與四個筒夾部件34C 一體升降。該夾緊裝置1C中可省去錐狀面H 錐狀引導面56C、45 ’惟不將其等省去併用亦可。 該用於縮徑或擴徑之致動H 11G具有：水平剖面呈 之板彈簧部件m ;環狀管112，其為設於該板彈簧部件⑴外：之$ ，的合成氣製職管112，並可藉由填充油縣制於植的娜菁部件 縮徑，環狀低摩擦部件113，固定於環狀管112的外周面；以及油壓供 給f置（省略圖示）’可從外部的油壓供給源將油壓供給至環狀管】12内的 油室112a、或自油室112a排出。該用於縮徑或擴徑的致動器ιι〇係於四個 靖夹部件34C的筒狀部58被安裝成外餘態，用於擴徑的板彈菁 則呈現與筒狀部58接觸的狀態。 所述環狀管112内周面的中段部分係安裝於板彈簧部件⑴，環狀管出 外周面的中段部分則安裝於環狀低摩擦部件113。又板彈簧部件⑴上沿多 個圓周方向形成有細長狀長孔llla以對應各筒夾部件34C，自外側插= 各長孔111a之附有頭部的螺栓服係藉螺合而固定於板彈簧部件⑴由 201130597 此即可透過板彈簣部件111的擴徑動作使四個筒夾部件34C擴徑。 夾緊驅動之際，係將油壓供給至油壓缸33並以油壓供給裝置將 充於環狀管112内的油室112a，以使用於擴徑之板彈簧部件ui與填 爽部件34C下降同時藉平行移動縮徑而呈夾緊狀態。解除失緊之@固二 去油壓缸33的油壓與環狀管112的油壓，則關於擴徑的板 的彈性力使四個筒夾部件34C上升同時藉平行移動_而呈解 態。由於該用於縮徑或擴徑的致動器110係於四個筒夾部件34c的 58被安裝成外嵌狀||_驗娜動筒㈣％，故可狱祕问二 同樣以板彈簧部件m賴侧驅_狀部58，故可穩定触動作。； 就部分改變所述實施例1〜7的示例進行說明。 ⑴亦可採歸圓财向分誠三〜六等分的三〜六個料部件來 圓周方向分割成四等分的四個筒夾部件34。 … (2) 環狀卡合部14的數量或環狀按壓部64 量並未限細個， 置適宜的多個環狀卡合部14或環狀按壓部64 ^環狀卡合部14之形狀亦= 限於如圖卿，只要是具有可承受賴加之負荷的環狀卡合面14:之产狀 卡合部14柯，環狀按壓部64的形狀亦同樣未限於如圖所示，只要=具 有可承受所附加之負荷的環狀按塵面64c之環狀卡合部64即可。 (3) 作為所述錄舰動!|可_氣壓缸，亦可獅縣 致動器等絲代祕缸。 ⑷夾緊桿ίο可因應工件w而採用長度不_夾緊桿。又從絲桿ι〇 傳遞負荷予工件W的結構可採用各種結構。 ⑸其他，只要是該領域人士’在不麟本發明意旨的情況下即能夠以 附加種種變化於所述實施例的方式來實施，且本發明亦包含其等。 【圖式簡單說明】 圖1為本發明實施例丨相關的夾緊裝置（解除夾緊狀態）的縱剖面圖； 圖2為夾緊桿的前視圖； 圖3為四個筒夾部件的立體圖； 圖4為四個筒夾部件的縱剖面圖； 圖5為從上方觀看筒夾部件的俯視圖； 21 201130597 圖6為爽緊裝置（夾緊驅動中途狀態）的縱剖面圖； 圖7為夾緊裝置（夾緊狀態）的縱剖面圖； 圖8為實施例2相關之夾緊裝置的縱剖面圖； 圖9為實施例3相關之夾緊裝置的縱剖面圖| 圖10為實施例4相關之炎緊|置的縱剖面圖； 圖11為實施例5相關之夾緊裝置的縱剖面圖； 圖12為實關6相關之失緊裝置的縱剖面圖； 圖13為實施例7相關之四個筒夾部件的立體圖； 圖14為四個筒夾部件的俯視圖； 圖15為四個筒夾部件的縱剖面圖； 圖16為四個筒夾部件的仰視圖； Π為實施例8相關之用於縮徑或擴徑用之致動器的縱剖面圖； 18為習知技術相關之方式夹緊裝置的縱别面圖 【主要元件符號說明】 1、1A〜1E夾緊裝置 2a載置面 3a 凹部 4 貫通孔 6 螺栓 8a、8b密封部件 11 頭部 13卡合桿部 14a、14e、64a、64e 錐狀面 14c卡合面 3〇 ·夾緊本體 31a上部桿插入孔 32、32C本體外殼 34、 34C〜34F筒夹部件 35、 35C第一引導機構 2 工件固定塊 2b收納空間 3b貫通孔 5 螺栓孔 7a〜7f密封部件 10夾緊桿 12桿部 14環狀卡合部 14b、64b外周面 14d、64d、67、67c 圓筒面 31桿插入孔 31b筒夾内桿插入孔 33、33A油麼虹 34a間隙 36、36A第—回復機構 22 201130597 37第二回復機構 38 ' 38E轉動限制機構 40 上壁部件 41 壓缸部件 41a外周壁部 42 ' 42A閉塞部件 42a凸起部 43 環部件 44 筒壁部 45 用於擴徑的錐狀弓丨導面 46、48螺栓孔 47 螺栓 49防塵封件 51 第一壓缸孔 52第二壓缸孔 53a、55a活塞部 53、 53b 53A、53B、53E環狀活塞部件 、55b、58筒狀部 54、54B環狀油壓作動室 54a、 54b油路 55、55B輔助環狀活塞部件 55c 環狀部 56、56C用於縮徑的錐狀引導面57 、57C錐狀壁部 59、59D〜59F凸緣部 60 第一收納孔 61 第二收納孔 61a 臺階部 64 環狀按壓部 64c 按壓面 66 用於縮徑的錐狀面 68 用於擴徑的錐狀面 70、70A中心孔 71 ' 71A、71D環狀板 72 彈簧收納室 72A 油壓作動室 72a、72b空氣通路 72c 、72d油路 73 第一壓縮線圈彈簧 74 第一壓縮線圈彈菁 75 貫通孔 76 桿支撐部件 76a凸緣 77 彈簧承接孔 78 壓縮線圈彈簧 79 彈簧承接具 80、86擋環 81 限制槽 82 半球凹部 83 鋼球 87、88、89密封部件 90 彈簧收納孔 91 壓縮線圈彈簧 94 第二引導機構 95 錐狀從動面 96 錐狀卡合面 97 環狀卡合部件 98 壓縮彈簧 100 第三引導機構 101 錐狀從動面 23 201130597 102 錐狀按壓面 103 > 104凹部 110 用於縮徑或擴徑用的致動器111a 長孔 111b螺栓 112 環狀管 112a油室 113 低摩擦部件 A 袖心 W 工件 2419 S 201130597 The back surface of the flange portion 59F of the upper half of the second member 34F is formed with a plurality of steel balls 82 for accommodating the upper side rectangular concave portion 104, and the annular plate is formed with a plurality of steel balls 82 for accommodating the side rectangular recesses. (not shown), and a plurality of steel balls 82 are accommodated in the upper rectangular recess and the lower rectangular recess in each of the four collet members 34F. Through the above structure, that is, the same central part MF is reduced in diameter or expanded, and at the same time, the axis of the winding guide is limited. [Embodiment 8] Initially, FIG. 17, the reduction or diameter expansion related to Embodiment 8 is used. Actuator instructions. For example, the wire device 1C t of the fourth embodiment omits the tube iTL5-3b' of the annular piston member 53 from being used in the space created by the elimination and the enlarged space provided to the outside thereof. The actuator 11 is reduced in diameter or enlarged (this corresponds to the first guiding mechanism and the four collet members 34C are integrally raised and lowered. In the clamping device 1C, the tapered surface H tapered guiding surface 56C can be omitted, 45', but it is not necessary to save it. The actuation H 11G for reducing or expanding the diameter has a plate spring member m in a horizontal section; the annular tube 112 is provided on the leaf spring member. (1) outside: the syngas capping pipe 112 of $, and may be fixed to the outer peripheral surface of the annular pipe 112 by the diameter reduction of the naphthalene component manufactured by the oil-filled county, and the annular low-friction member 113; The pressure supply f (not shown) can be supplied from the external hydraulic supply source to the oil chamber 112a in the annular pipe 12 or from the oil chamber 112a. This is used for reducing or expanding the diameter. The cylindrical portion 58 of the actuator 341 is attached to the outer cylindrical state, and the plate elastic for expanding the diameter is in contact with the cylindrical portion 58. The middle portion of the inner circumferential surface of the annular pipe 112 is attached to the leaf spring member (1), and the middle portion of the outer circumferential surface of the annular pipe is attached to the annular low friction member 113. Further, the plate spring member (1) is provided along a plurality of An elongated elongated hole 111a is formed in the circumferential direction to correspond to each of the collet members 34C, and the bolt-on device with the head attached to each of the long holes 111a is fixed to the leaf spring member (1) by the 201130597. The diameter expansion operation of the plate magazine member 111 expands the diameter of the four collet members 34C. When the clamp is driven, the hydraulic pressure is supplied to the hydraulic cylinder 33 and is filled in the annular tube 112 by the hydraulic pressure supply device. The oil chamber 112a is lowered by the plate spring member ui and the filling member 34C for increasing the diameter, and is clamped by the parallel movement reduction. The oil pressure and the ring of the @固二脱 hydraulic cylinder 33 which is de-tightened are released. The oil pressure of the tube 112 is such that the elastic force of the expanded diameter plate causes the four collet members 34C to rise while being displaced by the parallel movement _. Since the actuator 110 for reducing or expanding the diameter is tied to the fourth The 58 of the collet member 34c is mounted in an in-line shape ||_Inspective (4)%, so the prisoner secret Similarly, the leaf spring member m is driven to the side portion _-shaped portion 58, so that the touch operation can be stabilized. The example in which the first to seventh embodiments are changed is described. (1) It is also possible to collect the round money from the three to six equal parts. The three to six material members are divided into four quarters of the four collet members 34 in the circumferential direction. (2) The number of the annular engaging portions 14 or the amount of the annular pressing portion 64 is not limited, and is suitable. The shape of the plurality of annular engaging portions 14 or the annular pressing portions 64 and the annular engaging portions 14 is also limited to the shape of the annular engaging surface 14 that can withstand the load of the load. The shape of the engaging portion 14 and the annular pressing portion 64 are also not limited to those shown in the drawings, and the annular engaging portion 64 having the annular dusting surface 64c capable of withstanding the added load may be used. (3) As the recorded ship movement! | can be _ pneumatic cylinder, but also the Shixian actuator and other wire secret cylinder. (4) The clamping lever ίο can be used in accordance with the length of the workpiece w. Further, various structures can be employed for the structure in which the load is transmitted from the screw 〇 to the workpiece W. (5) Others, as long as they are in the field of the present invention, can be implemented in various other ways, and the present invention also includes such. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view of a clamping device (de-clamping state) according to an embodiment of the present invention; Fig. 2 is a front view of a clamping rod; and Fig. 3 is a perspective view of four collet members Figure 4 is a longitudinal sectional view of the four collet members; Figure 5 is a plan view of the collet member viewed from above; 21 201130597 Figure 6 is a longitudinal sectional view of the tightening device (in the middle of the clamping drive); Fig. 8 is a longitudinal sectional view of a clamping device according to a second embodiment; Fig. 9 is a longitudinal sectional view of a clamping device according to a third embodiment; Fig. 10 is a fourth embodiment; FIG. 11 is a longitudinal sectional view of the clamping device related to the fifth embodiment; FIG. 12 is a longitudinal sectional view of the detent device related to the actual closing 6; Fig. 14 is a plan view of four collet members; Fig. 15 is a longitudinal sectional view of four collet members; Fig. 16 is a bottom view of four collet members; A longitudinal section of an actuator for reducing or expanding a diameter; 18 is a related art Longitudinal view of the clamp device [Description of main components] 1. 1A to 1E clamping device 2a mounting surface 3a recess 4 through hole 6 bolt 8a, 8b sealing member 11 head 13 engaging rod portion 14a, 14e 64a, 64e tapered surface 14c engaging surface 3〇 · clamping body 31a upper rod insertion hole 32, 32C body housing 34, 34C to 34F collet member 35, 35C first guiding mechanism 2 workpiece fixing block 2b housing space 3b Through hole 5 bolt hole 7a to 7f sealing member 10 clamping rod 12 rod portion 14 annular engaging portion 14b, 64b outer peripheral surface 14d, 64d, 67, 67c cylindrical surface 31 rod insertion hole 31b collet inner rod insertion hole 33 33A oil rainbow 34a gap 36, 36A first-recovery mechanism 22 201130597 37 second return mechanism 38 '38E rotation restricting mechanism 40 upper wall member 41 cylinder member 41a outer peripheral wall portion 42' 42A blocking member 42a boss portion 43 ring Member 44 cylindrical wall portion 45 tapered tapered guide surface 46, 48 bolt hole 47 for bolt diameter 49 bolt 49 dust seal 51 first cylinder bore 52 second cylinder bore 53a, 55a piston portion 53, 53b 53A, 53B, 53E annular piston parts, 55b, 58 cylindrical parts 54, 54B annular oil pressure Chambers 54a, 54b Oil passages 55, 55B auxiliary annular piston member 55c annular portions 56, 56C for tapered guide surfaces 57, 57C tapered wall portions 59, 59D to 59F flange portion 60 first receiving hole 61 second housing hole 61a step portion 64 annular pressing portion 64c pressing surface 66 tapered surface for reducing diameter 68 tapered surface 70, 70A for expanding diameter Center hole 71 ' 71A, 71D annular plate 72 spring storage Chamber 72A Oil Pressure Actuating Chambers 72a, 72b Air Path 72c, 72d Oil Path 73 First Compression Coil Spring 74 First Compression Coil Amyloid 75 Through Hole 76 Rod Supporting Member 76a Flange 77 Spring Receiving Hole 78 Compression Coil Spring 79 Spring Receiving 80, 86 retaining ring 81 restricting groove 82 hemispherical recess 83 steel ball 87, 88, 89 sealing member 90 spring receiving hole 91 compression coil spring 94 second guiding mechanism 95 tapered driven surface 96 tapered engaging surface 97 ring Engagement member 98 Compression spring 100 Third guiding mechanism 101 Conical driven surface 23 201130597 102 Conical pressing surface 103 > 104 recess 110 Actuator 111a for reducing or expanding diameter Long hole 111b Bolt 112 Ring Tube 112a oil chamber 113 Low friction part A sleeve core W workpiece 24