201131090 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種相對於基底導引移動體的直線運動或 曲線運動之運動導引裝置。 【先前技術】 於1謂年代初期已產生原形之直線運動導引裂置，由於 可精由滑動部之轉動化而抑制摩擦阻力，因此可有利於節約 能源、提高運動精度，私已成為製造#巾不可或缺之存 在。直線運動導引裝置係經單元化之機械要素零件，可藉由 螺栓緊固而安裝於對象面，並且可省略於製作光滑導引面時 必須而不可或缺之滑合、削料之步驟。可實現大幅之工時 削減，因此利用領域亦廣泛，自1_年代起，此前未曾設 想使用之小型機械中之需要逐漸增加M视於此，持續進行 實現小型化之運動導引裝置之開發。於專利文獻丨中，揭示 有-種實現軌道轨條之寬度為2()咖以下、球徑為3 5画0 以下之小型化運動導引裝置。 關於專利文獻1中所揭示之運動導引裝置，包括與長度方 向呈直角之截面之形狀為大致矩形且沿長度方向形成有球 滾動部之執道軌條、及可移動地安裝於軌道軌條之鞍狀移動 塊。為了降低摩擦阻力，於執道執條與移動塊之間可滚動運 動地安插多個球。於移動塊設置使複數個球循環之迴路 (circuit)狀之球循環路徑。球循環路徑包括：與執道軌條之 099141684 4 201131090 球滾動部呈對向之古& 平行之|負細、 載球滚動部、與負載球滾動部 TTi 迴路徑、及連接負裁球滾動部與盎負載返迴 路徑之u字狀之方㈣祕徑。 —負載切 方向1^換路徨包括：形成方向轉換路徑内m則之方㈣拖 路徑内周側構· 狀方向轉換 之外周側之蓋構件L P獄)）、及形成方向轉換路徑 外而板㈣♦方向轉換路徑内周側構 1於移動塊本體之端面，蓋構件係以覆蓋上述方向 轉換路㈣周側構成部之方式安裝於移動塊本體之端面。方 向轉換路徑係配合球循環路之行數而設置複數條。 若使運動導弓I裝置小型化’則方向轉換路徑内周侧構成部 亦變小，樹脂成形及朝向移動塊端面之安裴變得困難。從而 亦會產生必須將與方向轉換路徑之數量對應之複數個方向 轉換路徑内周側構成部’個別地安裝於移動塊本體之端面之 問題。為了解決該問題，於專利文獻丨中所揭示之運動導引 裝置中，使複數個方向轉換路徑内周側構成部一體地成形於 中間板。並且，於蓋構件形成定位突起(boss)，於中間板及 移動塊本體形成定位孔，將蓋構件之定位突起嵌入於中間板 及移動塊本體之定位孔中，藉此使該等彼此定位。 [先行技術文獻] [專利文獻] 專利文獻1 :曰本專利實公平6-39143號公報(參照3頁6 欄） 099141684 5 201131090 【發明内容】 (發明所欲解決之問題） 近年來，業界要求運動導引裝置更進一步小型化，轨寬亦 進步遵窄為例如4 mm、2 mm、1 mm。於此種超小型運 動導引骏置中，為了使球順滑地循環，必須將中間板及蓋構 牛相對於移動塊本體準確地定位。然而，於超小型運動導引 j置中，由於其尺寸之微小，故難以製作定位突起。而且， 右形成《位突起或定位孔，則必需按其相應地使零件增大， 因此亦與小型化之要求相違背。 。此本發明之目的在於提供—種實現更進—步小型化， Cl:於移動構件本體進行中間板及蓋構件定位之運動 而於專利文獻】中所揭示之運動導引裝置令 子’之方向轉換路徑内周側之方向 ::圓柱形狀。於構成方向轉換路徑外周:= 凹部==向轉換路裡外周侧構成部對應之半圓桂形狀 完全地糾料__料心之方式 〈復盍方向轉換路捏外周側構成部。 Λ =’若以蓋構件完全地覆蓋 士則無法使蓋構件小型化 4周側構成 側構成部之蓋構件厚壁之#。向轉換路徑外周 外周側構成部之蓋構件:存在包圍方向轉換路徑 — 盖構件之；度亦變得極薄，其強度亦變弱之 201131090 問題。 因此，本發明之2 步小型化且亦可種實現錄件μ— (解決問題之手段/、 +強度之運動導引裝置。 以下，說明本發明。 決上述本發明之目的，本發明之一態樣係一種運動 動體滾動^包括：軌道轨條’其包含在長度方向延伸之轉 '/、移動構件本體，其包含與上述轉動 體滾動部呈 :向：負载轉動體滾動部、及與上述負載轉動體滚動部平行 地延伸之無負載妓路徑；蓋構件，其係絲於上述移動構 件本體，且形錢接上述移動構件本體之上述貞載轉動體滚 動部、與上述無負載返迴路徑之方向轉換路徑之外周側；令 間板，其係夾於上述蓋構件與上述移動構件本體之間，含有 形成上述方向轉換路徑之内周側之方向轉換路徑内周側構 成部;以及複數個轉動體，其等係排列於由 ： 體之上述負載轉動體滾動部、上述無負載返迴路_ 方向轉換路徑所構成之轉動體循環路徑；且於將上' 次上述 條之底面配置成水平面之狀態下，上述移_件^執道執 中間板、及上述蓋構件分別包括與上述軌道執條上2 之中央部、及與上述轨道執條之左右側面呈對向之—對向 部’於上述中間板之腳部設置上述方向轉換路徑内T對腳 部，並且於上述蓋構件之腳部設置方向轉換 周側構成 、^1二用凹部，以 099141684 7 201131090 使上述中間板之上述方向轉換路徑内周側構成部之下面露 出而不被上述蓋構件所覆蓋之狀態，嵌入於上述令間板之上 述方向轉換路翻關構成部，且上述㈣板之上述方向轉 換路控内周側構成部嵌人於上述蓋構件之上述方向轉換路 徑用凹部’藉此自上述軌道軌條之長度方向觀察，使上述蓋 構件相對於上述中間板而定位於左右方向，於上述中間板上 =置朝向上述蓋構件突出之上下方向定位凸部或上下方向 疋位凹部’並且於上述蓋構件設置嵌人於上述中間板之上述 上下方向讀凸部之蓋構件側上下方向定位凹部，或設置嵌 入於上述中間板之上述上下方㈣位凹部之蓋構件側上下 方向定位凸部，且上述中間板之上述上下方向定位凸部或上 ^下方向定位凹部嵌人於上述蓋構件之上述蓋構件側上 下方向定位凹部或上述蓋構件側上下方向定位凸部，藉此自 上述軌道執條之長度方向觀察，使上述蓋構件相對於上述中 間板而定位於上下方向。 本發明之另—態樣係一種運動導引裝置，其包括：轨道軌 二，=包含在長度方向延伸之轉動體滾動部；移動構件本 邱’ ^含與上述轉祕料Μ對向之貞载轉動體滾動 /一二、上逑負載轉動體滾動部平行地延伸之無負載返迴路 ^，盘構件，其係安錄上述移動構件本體，且形成連接上 、’L移動構件本體之上述負載轉動體滾動部、與上駐負載返 迴路徑之方向轉換路徑之外周侧；中間板，其係夾於上述蓋 099141684 201131090 構件與上述移動構件本體之 内周側之方向轉換路徑 y3有形成上述方向轉換路經 其等係排列於包含由上述則構成部；以及複數個轉動體， 滾動部、上述無負3载返迴體之上述負载轉動體 之轉動體循環路徑； 、、上延方向轉換路徑所構成 入緊固於上述移動構件本上體::::上綱 板之上述通孔周園形成 緊固構件之通孔，於上述中間 突起，於緊固上述緊固_之=多=件本體突出之環狀 圍，形成上述突起所嵌 切動構件本體之螺孔周 之上述突起吃入认、、衣狀突起用凹部，且上述中間板 此使上述中門㈣上述移動構件本體之上述突起用凹部，藉 =、Γ對於上述移動構件本體而定位。 運動導引F置这it:之另一目的，本發明又-態樣係-種 迷動導弓U置’其包括：轨道軌條， 伸 彳二，盍構件，其係安裝於上述移 =體：形成連接上述移動構件本體之上述負載轉動 側==:::迴路徑之方向轉換，外周 間，含有形成上述方向轉換路盍構件與上述移動構件本體= 以及複數個轉動體，其等_列於包含由上述 體之上返負載轉動體滚動部、上述無負載返迴路 099141684 201131090 徑、及上述方向轉換路徑所構成之轉動體循環路 =執:::之底面配置成水平面之狀態下，上述移動構:: 本體、上心間板、及上述蓋構件分別包括與上述 上面呈對向之中央部、及與上述軌道祕之左右側面呈2 之-對腳部’於上述中間板之腳部設置上述方向轉換路Μ 周側構成部，並且於上述蓋構件之腳部設置方向 ： 凹部’以使上述中間板之上述方向轉換路徑内周側構成= 下面露出而不被上述蓋構件所覆蓋之狀態，以於上述^ 板之上述方向轉換路徑内周側構成部。 ^門 (發明效果） =本發明之-態樣，以使中間板之方向轉換路徑 構糾^下面露出之狀態，將蓋構件嵌人於中間板，因此 會藉由蓋構件而覆蓋方向轉換路徑内周侧構成部之下面，， 實現蓋構件之小型化。又’利用為使轉動體循環必要構成: 件之方向轉換路徑内周㈣成部，將蓋構件相對於 定位於左右方向，利㈣置於中間板上之上下方㈣位凸： 或上下方向定位凹部’將蓋構件相對於中間板而定位於上^ 方向’因此不僅可實現巾間板及蓋構件之小魏且 蓋構件可相對於中間板定位。 使付 根據本發明之另—態樣，利用可插人緊固構件之中間板通 孔周圍之觀突起，射間板㈣於軸餐切㈣位^ 因此特別是於轉動體之直徑小於緊固構件之直徑之超小型 099141684 10 201131090 運動導弓I裝置中，亦可確保大直徑之突起。因此，當制 間板之突起時，可使突起之直徑容易管理，並且使得中 可相對於移動構件本體而牢㈣定位。〜中間板 根據本發明之又一態樣，不僅可實現蓋構件更進—步】，』 化，而且可確保蓋構件之強度。 、型 【實施方式】 圖1及圖2係表示本發明一實施形態之運動導引事置· 1係表示運動導引裝置之分解立體圖，圖2係表示剖面圖圖 運動導引裝置主要包括：軌道執條卜及可直線運動地= 於執道執條1稱作滑架（carriage)之移動塊2。於執道軌條 與移動塊2之間可滾動運動地安插多個作為轉動體之球^ 於塊本體8之移動方向之兩端部分別安褒構成循環功能之 循環零件6。循環科6包括：絲於塊本體8之移動方向 端面之中間板4、及作為用以覆蓋中間板4之蓋構件之端板 習知運動導引裝置與本實施形態之運動導引裝置，最大不 同在於其尺寸。圖2所示之執寬係奴為例如4馳、2画、 i麵等。藉由使運動導引裝置超小型化，即使於在習知運 動導引裝置中無法設置之極小空間亦可設置運動導引裝 置。不僅超小型化，而且與習知運動導料置同樣地，利用 球3之滾動運動使移動塊2相對於執道軌條【而移動，因此 滑動性亦良好。滑動性係藉由移動塊2移動時所產生之滾動 099141684 11 201131090 阻力來評估 如圖2所+ .. y、，執道執條1之截面為大致矩形，包括上面 a、左右1側面lb、及底面le。於將執道軌條1之底面 lc配置於、水平面内之狀態下’於軌道轨條1之左右-對側 .、刀別形成朝長度方向延伸之作為轉動體滾動部之_ 條求滚動t 10。球滚動槽10之截面形狀係形成為包含兩個 圓弧之哥特式m弧(G()thieaixh)槽形狀，球3係以兩點 於球滾動槽〗η * ^ ’ λ 。為了可自上下方向及左右方向四個方向均 等地承載貞$，_角餘對於水平—設定成Μ度。執 道軌條1係轉於基底等之對象零件，且使料安裝夾具 等結合手“結合。亦可於執道歸1之長度方向空_2 之間隔而形成貫通孔，使貫通孔中穿過螺釘而將軌道執條1 安裝於對象零件。軌道執條！之材質為不鏽鋼、鋼等金屬。 如圖1所示’於軌道執條丨經由多個球3而安裝作為移動 構件之移動塊2。如圖3所示，移動塊2包括：作為移動構 件本體之塊本體8、分別安裝於塊本體8之移動方向兩端面 之中間板4、及用以覆蓋中間板4之端板卜端板5係藉由 作為緊固構件之螺釘9而安裝於塊本體8。中間板4係夾於 塊本體8之端面與端板5之間。移動塊2包括與執道執條j 之上面呈對向之中央部2a、及與軌道軌條丨之左右側面呈 對向之一對腳部2b，整體形成為鞍形。 如圖4所示，塊本體8亦包括與軌道軌條丨上面“呈對 099141684 12 201131090 向之_央部8a、及與軌道軌條丄之左右側面化呈對向之— 對腳部Sb ’整體形成為按形。於一對卿部此之内側面，妒 成與軌道執條丨之球滾動槽1G呈對向㈣為負載轉㈣滾 -動部之負載球滾動槽12。負載球滾動槽12之截面形狀係形 ，成為包含兩個圓弧之哥特式圓弧槽形狀，球3係以㈣接觸 於負載球滾動槽負載球滾動槽12長度方向之兩端部 12a實施隆起(e_ing)加卫。所謂隆起加工，係指為使球3 平滑地自無負載區域侵入至負載區域，設想球3之於負载區 域之彈性變形1，使負載球滾動槽12之端部12a帶有錐度 (taper)。 於塊本體8 ’與負載球滾動槽12平行地形成無負載返迴 路徑13。無負載返迴路徑13係將塊本體8自一端面貫通至 另而面為止於塊本體8之兩端面，分別形成作為緊固構 件之螺釘9所螺合之螺孔14。螺孔14之直徑大於無負載返 坦路匕13之直徑。於螺孔14之周圍，形成直徑大於螺孔 14之環狀之大起用凹部15。該突起用凹部15之周面係形成 為朝向螺孔14之内部寬度逐漸變窄之錐形。突起用凹部 之直徑大於螺孔14之直徑，因此於突起用凹部15與螺孔 14之分界線形成段差。於塊本體8之上面，形成用以將塊 本體8安裝於對象零件之安⑽釘17。塊本體8之材質係 不鏽鋼、鋼等金屬製。 於塊本體8之移動方向之兩端面，分別安裝中間板4。如 099141684 13 201131090 圖1所示，中間板4包括與執道執條丨之上面1&呈對向之 中央部4a、及與轨道軌條1 一對左右之側面呈對向之一 對腳部4b。於一對腳部4b分別一體地設置構成u字狀之方 向轉換路徑之内周側之方向轉換路徑内周侧構成部2〇。圖5 係表示中間板4之詳圖。圖中（A)係表示塊本體側之立體 圖’（B)係表示端板侧之立體圖，（c)係表示端板側之前視 圖，（D)係表示側視圖。板狀之中間板本體21包括中央部 21a、及設置於中央部2ia之左右方向兩端之一對腳部2ib。 於中間板本體21之中央部21a之左右兩側（亦稱作腳部21b 之上部）穿設可插入螺釘9之一對通孔22。於中間板本體21 之一對腳部21b分別穿設無負載返迴路徑13。於一對腳部 21b内側之側面，形成與塊本體8之負載球滚動槽12對應 之圓弧狀之切口 23。中間板4為樹脂之成形品。 如圖5中（A)所示，於中間板本體21之塊本體8側，分別 在一對通孔22周圍形成朝向塊本體8突出之環狀之突起 24。突起24之内徑與通孔22之内徑相等’突起24之外徑 與塊本體8之環狀突起用凹部15(參照圖4)之内在相專。於 突起24之外周面，設有朝向塊本體8外授遂漸’憂小之錐形 24a(參照圖1〇)。再者，於中間板本體21之上面，由於配置 射出成形時之澆口（gate)，因此以產生毛邊(burr)荨亦無妨之 方式設置切口 51。 如圖5中（B)所示，於中間板本體21之端板5侧’於〜姆 099141684 14 201131090 通孔22之間一體地形成有朝向端板5突出之上下方向定位 凸部26。上下方向定位凸部26係形成為大致長方艚狀，其 上面26a及下面26c形成為平行之平面。該等上面2如及下 •面26c於將軌道執條1之底面配置於水平面時，位於與底面 •平行之水平面内。上下方向定位凸部26朝向端板5側突出 之頂面26d亦形成為平面。該頂面26d係位於與軌道轨條1 之長度方向正交之平面内。 如圖5中（B)所示，於中間板本體21之端板5側 對腳部21b分別一體地形成方向轉換路徑内周側構成部 20。於該方向轉換路徑内周側構成部2〇，形成用以連接無 負載返迴路徑Π與負載球滾動槽之U字狀之方向轉換路徑 内周侧27。—對方向轉換路徑内周側構成部之主右方向 最外側之側面29(夾住方向轉換路徑内周侧27上側之侧面 :及下側之側面29b)細成為構成圓筒之一部分之曲面。 该圓靖之曲率半徑與方向轉 ^ 0 , 、路徑之中心線之曲率半徑大 致相荨如圖5中（C)之前视 構成部如係於左右方向自==、，方向轉換路徑内周側 之内側面A p ,, 、、載返迴路徑13直至腳部21b 之内側面為止…對方向轉 侧面耗形成為彼此平行之^_频成部⑽内側之 示，自中間板本體21之方向路，5中⑼之側視圖所 出量係小於上下方吻麵—突 内周侧構成部2G朝向端板5 出量。方向轉換路徑 _應 大之頂面20d係位於與執 201131090 道執條1之長度方向正交之平面内。 如圖1所示，中間板4係由形成方向轉換路徑外周側之端 板5所覆蓋。端板5亦包括與軌道執條1之上面呈對向之中 央部、及與執道軌條1左右側面呈對向之一對腳部。圖6 係表示端板5之詳圖。圖中（A)係表示端板5外側之立體圖， (B)係表示中間板4側之立體圖，（C)係表示中間板4側之前 視圖。端板5為樹脂之成形品。 如圖6中（A)所示，於端板5之中央部5a左右方向之兩側 (亦稱作腳部5b之上部），穿設可插入螺釘9之一對通孔32。 端板5之通孔32之内徑與中間板4之通孔22之内徑相等。 如圖6中（B)所示，於端板5，在一對通孔32之間，形成 蓋構件側上下方向定位凹部34。端板5之蓋構件侧上下方 向定位凹部34係對應於中間板4之長方體形狀之上下方向 定位凸部26。蓋構件側上下方向定位凹部34之上面壁34a 及下面壁34c係形成為平行之平面。該等上面壁34a及下面 壁34c係於將軌道執條1之底面lc配置於水平面時，位於 與底面lc平行之水平面内。蓋構件側上下方向定位凹部34 之上面壁34a與下面壁34c之間之底面34d係形成為平面。 該底面34d係位於與軌道軌條1之長度方向正交之平面内。 如圖6中（B)所示，於端板5之中間板4側，於其一對腳 部分別形成與中間板4之方向轉換路徑内周側構成部20對 應之方向轉換路徑用凹部36。於方向轉換路徑用凹部36， 099141684 16 201131090 形成連接無負載返迴路 七二姑& ι U與負載球滾動槽12之U字狀 方向轉換路徑之外周側3 ,.. 。—對方向轉換路徑用凹部36之 左右方向最外側之壁面 、 爽住方向轉換路徑之外周側 二分為上側之壁φ 38b與下側之壁面_係形成為構成 圓肉之-部分之曲面。圓筒之曲率半徑與方向轉換路徑之中 〜線之曲率半徑大致相等。 如圖6中（C)之前視圖所示，方 向轉換路徑用凹部36係於少+ ^ ·右方向自腳部5b之中途直至内 側之側面39為止。於一對腳 打聊部5b内側之側面39，分別形 成用以將在執道軌條1之 〈衣/袞動槽10内滾動之球3撈起至 方向轉換路徑内之榜起部4Q。如圖6中⑻所示，方向轉換 路徑用㈣卩36之深度小於蓋構件側上下方向定位凹部34 之深度。方向轉換路徑用凹部36之底面36d係位於與軌道 執條1之長度方向正交之平面内。 如圖6(B)所示，於端板5之下面側，未形成用以覆蓋方 向轉換路徑内周侧構成部20之下面2〇c(參照圖7)之壁部。 其原因在於，如圖7所示，若於端板5設置用以覆蓋方向轉 換路徑内周側構成部2〇之下面20c之壁部42,則無法使端 板5小型化而相當於壁部42之厚度t之程度，壁部之強 度亦無法確保。藉由使中間板4之方向轉換路徑内周側構成 部2〇之下面露出，可實現端板5之小型化，而且可確保端 板5之強度。 圖8係表示方向轉換路徑内周側構成部2()及方向轉換路 099141684 17 201131090 徑用凹部36之底視圖。如該圖所示，方向轉換路徑内周側 構成部20之下® 20c露出。X，方向轉換路徑内周側構成 部20之頂面20d(參照圖5(B))及方向轉換路徑用凹部％之 底面36d(參照圖6(C))，並非形成為沿著方向轉換路徑中心 線之圓筒面’而係形成為平面。其係為確保端板5之強度。 圖8中之兩點鏈線係表示方向轉換路徑之中心線。若沿著方 向轉換路徑中心線分割為方向轉換路徑之内周侧（中間板* 側）與方向轉換路徑之外周侧（端板5側），則端板5侧之厚度 薆薄（參照圖11之兩點鏈線）。若端板5之厚度變薄，則再 加上於端板5未設置覆蓋方向轉換路徑内周側構成部2〇下 面之壁部42，端板5之撈起部40之強度會變弱。若撈起部 40之強度變弱，則於球3碰上撈起部4〇時，有撈起部4〇 朝打開方向變形，球3脫落之虞。為了解決該問題，方向轉 換路徑内周側構成部20之頂面2〇d及方向轉換路徑用凹部 36之底面36d係形成為平面。 又，藉由將方向轉換路徑内周侧構成部2〇之頂面2〇d及 方向轉換路徑用凹部36之底面36d形成為平面，而可相對 於中間板4輕易地在執道軌條丨之長度方向進行端板5定 位。若利用方向轉換路徑中心線分割成方向轉換路徑之内周 側（中間板4側）與方向轉換路徑之外周側(端板5側），則即 便將中間板4與端板5合併，由於尺寸差異之關係，亦容易 於該專之間產生微小之間隙(clearance)。藉由將分割面形成 099141684 18 201131090 為平面，可使間隙難以產生。 如圖1所示，於由塊本體8之負載球滚動槽12、無負載 返迴路徑13、及U字狀之方向轉換路徑所構成之迴路狀球 循環路中，排列多個球3作為轉動體。關於球3之直徑，小 者未滿1 mm。 如圖9所示，塊本體8與中間板4之定位係藉由將中間板 4之環狀突起24嵌入於塊本體8之突起用凹部15來進行。 若突起24嵌入於塊本體8之突起用凹部15，則突起24之 外周面（圖中用斜線A1所表示之部分）與突起用凹部15之内 周面（圖中用斜線A2所表示之部分)相接觸。突起24及突起 用凹部15分別各設置有兩個，因此可相對於塊本體8而於 上下方向及左右方向進行中間板4定位。 如此，利用中間板4之通孔22周圍之環狀突起24，相對 於塊本體8而進行中間板4定位，藉此即使於球3之直徑小 於螺釘之直徑之超小型運動導引裝置中，亦可確保大直徑之 突起24。因此，當形成中間板4之突起24時，可使突起24 之直徑變得容易管理，並且可相對於塊本體8而牢固地定位 中間板4。 如圖10所示，中間板4之突起24之外周面24a係形成為 錐形，塊本體8之突起用凹部15之内周面15a亦係形成為 錐形。藉由使該等形成為錐形，可提高組裝性，可更準確之 定位。 099141684 19 201131090 如圖11所示，相對於中間板4的端板5左右方向之定位， 係藉由將中間板4之一對方向轉換路徑内周側構成部20嵌 入於端板5之一對方向轉換路徑用凹部36來進行。若將一 對方向轉換路徑内周侧構成部20嵌入於一對方向轉換路徑 用凹部36，則中間板4之一對方向轉換路徑内周側構成部 20之左右方向最外側之側面29(圖中用斜線A3所表示）與端 板5之一對方向轉換路徑用凹部36之左右方向最外側之壁 面38(圖中用斜線A4所表示)相接觸。相對於中間板4，端 板5左右方向之移動係藉由側面29及壁面38而限制，因此 可相對於中間板4而於左右方向進行端板5定位。 如此，利用為使球3循環必要構成零件之方向轉換路徑内 周側構成部20，於左右方向進行中間板4及端板5定位， 因此可實現中間板4及端板5之小型化，並且可定位中間板 4及端板5。 此處，中間板4之一對方向轉換路徑内周側構成部20、 及端板5之一對方向轉換路徑用凹部36,係相對於中間板4 而僅於左右方向進行端板5定位。亦即，雖於左右方向定 位，但未於上下方向定位。藉由不於上下方向定位，可於端 板5不形成與方向轉換路徑内周側構成部20之下面20c(參 照圖7)、或上面相接觸之壁部42，從而可實現端板5之小 型化。 又，藉由將中間板4之一對方向轉換路徑内周側構成部 099141684 20 201131090 20之侧面29、及端板5之一對方向轉換路徑用凹部36之壁 面38形成為構成圓筒之一部分之曲面，可一面定位，一面 於組裝時對位置進行微調。 相對於中間板4進行端板5上下方向之定位，係藉由將中 間板4之上下方向定位凸部26嵌入於端板5之蓋構件側上 下方向定位凹部34來進行。若上下方向定位凸部26嵌入於 蓋構件側上下方向定位凹部34,則上下方向定位凸部26之 上面26a(圖中用斜線A5所表示之部位）及下面26c，係與蓋 構件側上下方向定位凹部34之上面壁34a(圖中用斜線A6 所表示之部位）及下面壁34c相接觸。相對於中間板4的端 板5之上下方向之移動，係藉由該等上面26a及下面26c、 上面壁34a及下面壁34c而限制，因此，可相對於中間板4 而於上下方向進行端板5定位。 此處，中間板4之上下方向定位凸部26及端板5之蓋構 件側上下方向定位凹部34，係相對於中間板4而僅於上下 方向進行端板5定位。於端板5之蓋構件側上下方向定位凹 部34之兩側存在通孔32(參照圖6(B))，因此無法相對於中 間板4而於左右方向進行端板5定位。藉此，可防止於左右 方向進行雙重定位。 圖12係表示將中間板4及端板5定位於塊本體8之後， 利用作為緊固構件之螺釘9將其等緊固於塊本體8之狀態。 於將螺釘9緊固於塊本體8時，中間板4之上下方向定位凸 099141684 21 201131090 部26之端板5側之頂面26d係與端板$ 向定位凹部34之底面34d相接觸。 件側上下方 ^螺釘9之緊固力係 中間板4之上下方向定位凸部26及 ^刀係左由 知板5之蓋構件側 方向定位凹部34而傳遞至塊本體8。 如此，中間板4之上下方向定位凸部26及㈣ 件側上下方向定位凹部34，亦具有作為斷9之支承面 (bearing surface)之功能。藉由佶jl女 /、有原本必需功能之部分亦 具有定位之功能，而無需設置定位專用之突起，從而可實現 中間板4及端板5之小型化。 再者，本發明並不限定於具體化為上述實施形態，亦可於 不變更本發明之主旨之範圍内進行各種變更。例如，於上述 方向進行端板定位， 因此於中間板形成有上下方向定位凸部，於端板上形成有嵌 入於上下方向定位凸部之蓋構件側上下方向定位凹部。然 而’凹凸之關係亦可相反，亦可於中間板形成上下方向定位 凹部，於端板形成蓋構件侧上下方向定位凸部。 (產業上之可利用性） 作為使用小型運動導引裝置之用途，係需要節省空間、節 約能源且高精度之運動之機械及其周邊設備。例如，可舉出 遠程手術用機器人等醫療設備、小型感測器等測量設備、電 動夾具(gripper)等小型精密設備、三維模型製作機。不僅可 用於工業機械，而且可用於家用縫紉機等家電設備。不僅能 099141684 22 201131090 以運動導引裝置之單體使用，而且能藉由與小型線性馬達組 合，而作為微致動器（micro actuator)使用。 【圖式簡單說明】 圖1係本發明一實施形態之運動導引裝置之分解立體圖。 圖2係上述運動導引裝置之剖面圖。 圖3係已組裝狀態之移動塊之立體圖。 圖4係移動塊之詳圖（圖中（A)係表示立體圖，（B)係表示 前視圖）。 圖5係中間板之詳圖（圖中（A)係表示塊本體側之立體圖， (B)係表示端板側之立體圖，（C)係表示端板側之前視圖，（D) 係表示側視圖）。 圖6係端板之詳圖（圖中（A)係表示端板之外側之立體圖， (B)係表示中間板側之立體圖，（C)係表示中間板側之前視 圖）。 圖7係表示於端板設置有用以覆蓋中間板下面之壁部之 例的比較圖。 圖8係中間板之方向轉換路徑内周側構成部及端板之方 向轉換路徑用凹部之底視圖。 圖9係塊本體及中間板之立體圖。 圖10係中間板之突起及塊本體之突起用凹部之剖面圖。 圖11係中間板及端板之立體圖。 圖12係表示藉由緊固構件而將中間板及端板緊固於塊本 099141684 23 201131090 體之狀態的剖面圖。 【主要元件符號說明】 1 軌道軌條 la 轨道執條之上面 lb 軌道軌條之左右一對側面 lc 軌道軌條之底面 2 移動塊 2a 移動塊之中央部 2b 移動塊之腳部 3 球(轉動體） 4 中間板 4a 中間板之中央部 4b 移動塊之腳部 5 端板(蓋構件） 5a 端板之中央部 5b 端板之腳部 6 循環零件 8 塊本體(移動構件本體） 8a 塊本體之中央部 8b 塊本體之腳部 9 螺釘（緊固構件） 10 球滾動槽(轉動體滚動部） 12 負載球滾動槽（負載轉動體滾動部) 12a 負載球滾動槽之兩端部 099141684 24 201131090 13 14 15 15a 17 20 20c 20d 21 21a 21b 22 23、 24 24a 26 26a 26c 26d 27 29 29a 29b 無負載返迴路徑 螺孔 突起用凹部 内周面 安裝螺釘 方向轉換路徑内周側構成部 方向轉換路徑内周側構成部之下面 方向轉換路徑内周側構成部之頂面 中間板本體 中間板本體之中央部 中間板本體之腳部 中間板之通孔 51 切口 環狀之突起 突起之外周面 上下方向定位凸部 上下方向定位凸部之上面 上下方向定位凸部之下面 上下方向定位凸部之頂面 方向轉換路徑之内周側 中間板之一對方向轉換路徑内周側構成部左右方 向最外側之側面 方向轉換路徑之内周側之上侧之側面 方向轉換路徑之内周側之下側之側面 099141684 25 201131090201131090 VI. Description of the Invention: [Technical Field] The present invention relates to a motion guiding device for guiding a linear motion or a curved motion of a moving body with respect to a substrate. [Prior Art] In the early stage of the 1st, the original linear motion guide split has been produced. Since the friction can be suppressed by the rotation of the sliding portion, it can be conducive to saving energy and improving the motion accuracy. The towel is indispensable. The linear motion guiding device is a unitized mechanical component part that can be attached to the surface of the object by bolt fastening, and can be omitted from the steps of slipping and cutting when making a smooth guiding surface. Since the use of the small-sized machines that have not been previously used has been increasing since the 1st century, the development of motion guidance devices for miniaturization has continued. In the patent document, there is disclosed a miniaturized motion guiding device that realizes that the width of the track rail is 2 () or less, and the ball diameter is 3 5 and 0 or less. The motion guiding device disclosed in Patent Document 1 includes a rail having a substantially rectangular cross section in a longitudinal direction and a ball rolling portion formed in a longitudinal direction, and is movably mounted on the rail rail. Saddle-shaped moving block. In order to reduce the frictional resistance, a plurality of balls can be placed in a rolling motion between the execution bar and the moving block. In the moving block, a loop path of a circuit in which a plurality of balls are cycled is set. The ball circulation path includes: 099141684 4 201131090 ball rolling section opposite to the ancient ball & parallel | negative fine, ball rolling part, and load ball rolling part TTi return path, and connection negative cutting ball The U-shaped side of the rolling part and the angstrom load return path (4). - Load cutting direction 1^Switching includes: forming a direction conversion path in which m is the square (4) dragging the inner circumference side of the towing path, switching the outer peripheral side of the cover member LP prison)), and forming a direction conversion path (4) The inner peripheral side of the direction changing path is formed on the end surface of the moving block main body, and the cover member is attached to the end surface of the moving block main body so as to cover the circumferential side forming portion of the direction changing path (4). The direction conversion path is set in conjunction with the number of rows of the ball cycle path. When the size of the motion guide I device is reduced, the inner peripheral side structural portion of the direction changing path is also reduced, and it is difficult to form the resin and face the opening of the moving block end face. Therefore, there is a problem in that it is necessary to individually attach the inner circumferential side constituent portions ' of the plurality of direction conversion paths corresponding to the number of the direction switching paths to the end faces of the moving block body. In order to solve this problem, in the motion guiding device disclosed in the patent document, the inner circumferential side constituent portions of the plurality of direction changing paths are integrally formed on the intermediate plate. Further, a positioning boss is formed on the cover member, and a positioning hole is formed in the intermediate plate and the moving block body, and the positioning protrusion of the cover member is fitted into the positioning hole of the intermediate plate and the moving block body, thereby positioning the ones. [Provisional Technical Documents] [Patent Document] Patent Document 1: Japanese Patent Publication No. Hei 6-39143 (refer to the third column, column 6) 099141684 5 201131090 [Summary of the Invention] (Inventive Problem to be Solved) In recent years, the industry has demanded The motion guiding device is further miniaturized, and the rail width is also improved to be, for example, 4 mm, 2 mm, 1 mm. In such an ultra-small motion guide, in order to smoothly circulate the ball, the intermediate plate and the cover cow must be accurately positioned relative to the moving block body. However, in the ultra-small motion guide j, it is difficult to make a positioning protrusion due to its small size. Moreover, if the right side forms a "protrusion or a positioning hole, it is necessary to increase the part accordingly, and thus it is contrary to the requirement of miniaturization. . The purpose of the present invention is to provide a further step-by-step miniaturization, Cl: moving the body of the moving member to perform the movement of the intermediate plate and the cover member, and the direction of the motion guiding device disclosed in the patent document is changed. The direction of the inner circumference side of the path:: cylindrical shape. In the outer circumference of the constituting direction switching path: = recessed portion = = semi-circular shape corresponding to the outer peripheral side constituent portion of the switching path. The method of completely correcting the __ center of the reticle direction <the reticular direction switching path pinching outer peripheral side constituent portion. Λ =' If the cover member is completely covered, the cover member cannot be miniaturized. The four-side side constitutes the cover member thick side wall #. The cover member of the outer peripheral side of the transition path has a surrounding member transition path - the cover member; the degree is also extremely thin, and the strength thereof is also weakened. Therefore, the second step of the present invention is miniaturized and the recording member μ can be realized (the means for solving the problem/the + intensity of the motion guiding device. Hereinafter, the present invention will be described. One of the objects of the present invention is the object of the present invention. The embodiment is a moving body rolling ^including: a track rail 'which includes a turn extending in the longitudinal direction', a moving member body, which includes a rolling portion of the rotating body: a load rotating body rolling portion, and An unloaded crucible path in which the load rotating body rolling portion extends in parallel; a cover member that is fastened to the moving member body, and is connected to the rolling member rolling portion of the moving member body, and the above-mentioned no load Returning to the outer peripheral side of the direction change path of the path; and interposing the interlayer plate between the cover member and the moving member body, and including a direction transition path inner peripheral side component forming the inner peripheral side of the direction change path; And a plurality of rotating bodies arranged in a rotating body circulation path formed by the load rotating body rolling portion of the body and the no-load return path _ direction changing path; In the state in which the bottom surface of the above-mentioned strip is disposed in a horizontal plane, the intermediate plate and the cover member respectively include a central portion of the upper rail 2 and the rail The left and right side faces are opposite to each other. The opposite portion is provided with a T-to-leg portion in the direction change path in the leg portion of the intermediate plate, and a direction conversion peripheral side is provided on the leg portion of the cover member, and the second recess portion is provided. a state in which the lower surface of the inner circumferential side constituent portion of the intermediate plate is exposed without being covered by the cover member, and is inserted into the direction change path turn-off configuration portion of the inter-recess plate, and is not disclosed in the state of 099141684 7 201131090. The direction-converting inner peripheral side forming portion of the fourth plate is embedded in the direction changing path recessed portion of the cover member, thereby observing the cover member from the intermediate plate as viewed from the longitudinal direction of the track rail. Positioned in the left-right direction, on the above-mentioned intermediate plate = positioning convex portion or up-and-down direction positioning concave portion toward the above-mentioned cover member protrusion upper and lower direction and on the above-mentioned cover member Positioning a concave portion in a vertical direction on a lid member side of the upper and lower direction reading convex portions of the intermediate plate, or placing a convex portion in a vertical direction of a cover member side of the upper and lower (four)-position concave portions of the intermediate plate, and the middle portion The up-and-down direction positioning convex portion or the upper-lower direction positioning concave portion of the plate is fitted to the cover member side vertical positioning positioning concave portion of the cover member or the cover member side vertical positioning convex portion, thereby lengthening the strip from the rail Observing the direction, the cover member is positioned in the up and down direction with respect to the intermediate plate. Another aspect of the invention is a motion guiding device comprising: a track rail 2, including a rotating body rolling portion extending in the longitudinal direction ; moving member Ben Qiu ' ^ contains the above-mentioned transfer of the material Μ opposite to the load of the rotating body rolling / one, the upper 逑 load rotating body rolling part of the parallel extension of the no-load return road ^, disk components, its record The moving member body is formed to form a direction switching path of the load rotating body rolling portion of the connecting member, the 'L moving member body, and the upper load return path a peripheral side of the outer diameter; the intermediate plate is sandwiched by the cover 099141684 201131090; and the direction changing path y3 of the inner peripheral side of the movable member body is formed such that the direction changing path is arranged to be arranged by the above-mentioned constituent portion; And a plurality of rotating bodies, a rolling portion, and a rotating body circulation path of the load rotating body of the non-negative three-load returning body; and an upward extending direction changing path formed and fastened to the moving member body:::: The through hole of the upper plate forms a through hole of the fastening member, and the intermediate protrusion is formed in the annular ring around which the fastening body is protruded to form the cutting member. The above-mentioned protrusions of the screw hole are used to receive the recesses for the garment-like projections, and the intermediate plate is used to position the projection recesses of the moving member main body of the middle door (4). The other purpose of the motion guide F is that the present invention is further characterized in that: the trajectory guide U-shaped member includes: a track rail, a squat, a squat member, and the system is mounted on the above shift = a body: forming a direction of rotation of the load rotating side ==::: return path connecting the moving member body, and forming a direction switching path member and the moving member body = and a plurality of rotating bodies between the outer circumference, etc. a state in which the bottom surface including the returning body rotating portion of the body, the unloaded return path 099141684 201131090 diameter, and the rotation path of the above-described direction changing path are arranged in a horizontal plane. The moving mechanism: the main body, the upper inter-card, and the cover member respectively include a central portion opposite to the upper surface, and a pair of left and right sides of the track and the left side of the track are at the foot of the intermediate plate The direction switching path circumferential side constituent portion is provided, and a direction of the recess portion is provided in the leg portion of the cover member so that the inner circumferential side of the direction transition path of the intermediate plate is configured to be exposed below without being covered by the cover Member of the covered state to the above-described conversion to the path direction of ^ peripheral side plate portion configured. ^门(发明效果)=In the aspect of the present invention, the cover member is embedded in the intermediate plate in such a state that the direction change path of the intermediate plate is corrected, and the direction switching path is covered by the cover member The lower surface of the inner peripheral side constituent portion realizes downsizing of the cover member. In addition, in order to circulate the rotating body, it is necessary to form: the inner circumferential (four) portion of the direction transition path of the member, the cover member is positioned relative to the left and right direction, and the (four) is placed above and below the intermediate plate (four) convex: or the concave portion is positioned in the up and down direction 'Locating the cover member in the upper direction relative to the intermediate plate' thus allows not only the small edge of the inter-sheet and the cover member but also the cover member to be positioned relative to the intermediate plate. According to another aspect of the present invention, the projections around the through hole of the intermediate plate of the insertable fastening member are used, and the interposer (4) is cut at the axis (four) position. Therefore, especially the diameter of the rotating body is smaller than the fastening. Ultra-small diameter of the member 099141684 10 201131090 In the motion guide bow I device, large diameter protrusions can also be ensured. Therefore, when the tabs are formed, the diameter of the projections can be easily managed, and the middle can be firmly positioned with respect to the moving member body. ~ Intermediate plate According to still another aspect of the present invention, not only the cover member can be further advanced, but also the strength of the cover member can be ensured. 1 and 2 are schematic exploded perspective views showing a motion guiding device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a motion guiding device mainly comprising: The track execution and the linear movement = the movement block 2 called the carriage. A plurality of balls as the rotator are inserted between the trajectory rail and the moving block 2, and the end portions of the moving direction of the block body 8 are respectively mounted with the circulation member 6 constituting the circulation function. The circulation section 6 includes: an intermediate plate 4 in which the wire is in the moving direction end face of the block body 8, and an end plate conventional motion guiding device as a cover member for covering the intermediate plate 4, and the motion guiding device of the present embodiment, The difference lies in its size. The slaving slaves shown in Fig. 2 are, for example, 4, 2, i, and the like. By miniaturizing the motion guiding device, the motion guiding device can be provided even in a small space which cannot be set in the conventional motion guiding device. Not only is the miniaturization, but also the rolling motion of the ball 3 causes the moving block 2 to move relative to the orbital rail in the same manner as the conventional moving guide, and therefore the sliding property is also good. The slidability is evaluated by the resistance of the rolling 099141684 11 201131090 generated when the moving block 2 moves, as shown in FIG. 2 + .. y, the cross section of the executor 1 is substantially rectangular, including the upper a, the left and right 1 side lb, And the bottom surface le. In the state in which the bottom surface lc of the track rail 1 is placed in the horizontal plane, the left and right sides of the track rail 1 are opposite to each other, and the knife is formed to extend in the longitudinal direction as a rolling portion of the rotating body. t 10. The cross-sectional shape of the ball rolling groove 10 is formed into a Gothic m-arc (G() thieaixh) groove shape including two arcs, and the ball 3 is two points in the ball rolling groove η η * ^ ′ λ . In order to equally carry 贞$ from the up and down direction and the left and right directions, the _ angle is set to the 水平 degree for the level. The trajectory rail 1 is transferred to a target part such as a base, and the joint mounting jig or the like is combined. The through hole can also be formed at intervals of the length direction _2 of the trajectory, so that the through hole is worn. The rail bar 1 is attached to the target part by means of a screw. The material of the rail is made of metal such as stainless steel or steel. As shown in Fig. 1, the moving block as a moving member is mounted via a plurality of balls 3 on the rail bar. 2. As shown in FIG. 3, the moving block 2 includes: a block body 8 as a moving member body, an intermediate plate 4 respectively mounted on both end faces of the block body 8 in the moving direction, and an end plate end for covering the intermediate plate 4 The plate 5 is attached to the block body 8 by a screw 9 as a fastening member. The intermediate plate 4 is sandwiched between the end surface of the block body 8 and the end plate 5. The moving block 2 is provided on the upper side of the execution bar j. The opposite central portion 2a and one pair of the left and right side faces of the track rail 丨 are formed in a saddle shape as a whole. As shown in Fig. 4, the block body 8 is also included with the track rail 丨 above. The pair of 099141684 12 201131090 to the central part 8a, and the left and right sides of the rail track The form of the - integrally formed on the leg portion Sb 'is press-shaped. On the inner side of the pair of squadrons, the ball rolling groove 1G is opposite to the track rolling ball 1G (four) is the load ball rolling groove 12 of the load-rotating (four) rolling-moving portion. The cross-sectional shape of the load ball rolling groove 12 is a Gothic circular groove shape including two circular arcs, and the ball 3 is (4) contacted at both end portions 12a of the load ball rolling groove load ball rolling groove 12 in the longitudinal direction. The uplift (e_ing) is added. The ridge processing means that the ball 3 is smoothly invaded from the no-load region to the load region, and the elastic deformation 1 of the ball 3 in the load region is assumed to cause the end portion 12a of the load ball rolling groove 12 to have a taper. The no-load return path 13 is formed in parallel with the load ball rolling groove 12 in the block body 8'. The no-load return path 13 is formed by penetrating the block main body 8 from the one end surface to the other end surface of the block main body 8 to form a screw hole 14 to which the screw 9 as a fastening member is screwed. The diameter of the screw hole 14 is larger than the diameter of the unloaded return path. Around the screw hole 14, a large-shaped recess 15 having a diameter larger than that of the screw hole 14 is formed. The circumferential surface of the projection recess 15 is formed in a tapered shape which gradually narrows toward the inner width of the screw hole 14. Since the diameter of the projection recess is larger than the diameter of the screw hole 14, a step is formed in the boundary between the projection recess 15 and the screw hole 14. On the upper surface of the block body 8, an anchor (10) nail 17 for mounting the block body 8 to the target part is formed. The material of the block body 8 is made of metal such as stainless steel or steel. The intermediate plate 4 is attached to both end faces of the block body 8 in the moving direction. As shown in FIG. 1, the intermediate plate 4 includes a central portion 4a opposite to the upper surface 1& and a pair of left and right sides with the track rail 1 opposite to the left side. 4b. Each of the pair of leg portions 4b is integrally provided with a direction changing path inner peripheral side component portion 2B on the inner peripheral side of the u-shaped direction changing path. Figure 5 is a detailed view of the intermediate plate 4. (A) is a perspective view showing the end plate side, (c) is a front view of the end plate side, and (D) is a side view. The plate-shaped intermediate plate body 21 includes a central portion 21a and one pair of leg portions 2ib provided at both ends of the central portion 2ia in the left-right direction. One of the right and left sides (also referred to as an upper portion of the leg portion 21b) of the central portion 21a of the intermediate plate body 21 is bored with a pair of through holes 22 through which the screw 9 can be inserted. A load-free return path 13 is bored in one of the pair of leg portions 21b of the intermediate plate body 21, respectively. An arcuate slit 23 corresponding to the load ball rolling groove 12 of the block body 8 is formed on the inner side of the pair of leg portions 21b. The intermediate plate 4 is a molded product of a resin. As shown in Fig. 5(A), on the block body 8 side of the intermediate plate body 21, annular projections 24 projecting toward the block body 8 are formed around the pair of through holes 22, respectively. The inner diameter of the projection 24 is equal to the inner diameter of the through hole 22. The outer diameter of the projection 24 is exclusive to the inner portion of the annular projection recess 15 (see Fig. 4) of the block main body 8. On the outer peripheral surface of the projection 24, a taper 24a (see Fig. 1A) which is biased toward the outside of the block body 8 is provided. Further, on the upper surface of the intermediate plate main body 21, since the gate at the time of injection molding is disposed, the slit 51 is provided in such a manner as to generate a burr. As shown in Fig. 5(B), the end portion 5 of the intermediate plate body 21 is integrally formed between the through holes 22 of the 099141684 14 201131090, and the convex portion 26 is formed to protrude upward and downward toward the end plate 5. The up-and-down direction positioning projections 26 are formed in a substantially rectangular shape, and the upper surface 26a and the lower surface 26c are formed in parallel planes. The upper surface 2 and the lower surface 26c are located in a horizontal plane parallel to the bottom surface when the bottom surface of the rail strip 1 is placed on the horizontal plane. The top surface 26d in which the up-and-down direction positioning convex portion 26 protrudes toward the end plate 5 side is also formed in a flat surface. The top surface 26d is located in a plane orthogonal to the longitudinal direction of the track rail 1. As shown in Fig. 5 (B), the direction transition path inner peripheral side constituent portion 20 is integrally formed on the leg portion 21b on the end plate 5 side of the intermediate plate body 21, respectively. In the direction switching path inner peripheral side constituent portion 2'', a U-shaped direction switching path inner peripheral side 27 for connecting the no-load return path Π and the load ball rolling groove is formed. - In the main right direction of the inner peripheral side constituent portion of the direction changing path, the outermost side surface 29 (the side surface on the upper side of the inner peripheral side 27 sandwiching the direction changing path and the side surface 29b on the lower side) is a curved surface which is a part of the cylinder. The radius of curvature of the circle and the direction of rotation ^ 0 , and the radius of curvature of the center line of the path are substantially opposite to each other as shown in Fig. 5 (C). The front view component is in the left and right direction from ==, and the inner side of the direction change path The inner side surface A p , , , and the return path 13 are up to the inner side surface of the leg portion 21b. The direction of the direction-turning side surface is formed to be parallel to the inner side of the frequency portion (10), and the direction from the intermediate plate body 21 The amount of the side view of the fifth (9) is smaller than that of the upper and lower kiss surfaces - the inner peripheral side constituent portion 2G is directed toward the end plate 5. The direction change path _ should be the top surface of the large 20d is located in the plane orthogonal to the length direction of the 201131090 line. As shown in Fig. 1, the intermediate plate 4 is covered by an end plate 5 which forms the outer peripheral side of the direction changing path. The end plate 5 also includes a center portion opposite to the upper surface of the rail bar 1 and a pair of leg portions opposite to the left and right sides of the rail bar 1. Figure 6 is a detailed view of the end plate 5. In the figure, (A) is a perspective view showing the outer side of the end plate 5, (B) is a perspective view showing the side of the intermediate plate 4, and (C) is a front view showing the side of the intermediate plate 4. The end plate 5 is a molded product of a resin. As shown in Fig. 6(A), on one of the two sides of the center portion 5a of the end plate 5 in the left-right direction (also referred to as the upper portion of the leg portion 5b), one of the insertion screws 9 is inserted through the through hole 32. The inner diameter of the through hole 32 of the end plate 5 is equal to the inner diameter of the through hole 22 of the intermediate plate 4. As shown in Fig. 6(B), in the end plate 5, between the pair of through holes 32, a cover member side vertical positioning recess portion 34 is formed. The cover member side upper and lower sides of the end plate 5 are positioned toward the positioning concave portion 34 in a downward direction corresponding to the rectangular parallelepiped shape of the intermediate plate 4. The upper wall 34a and the lower wall 34c of the cover member side up-and-down direction positioning recess 34 are formed in parallel planes. The upper wall 34a and the lower wall 34c are located in a horizontal plane parallel to the bottom surface lc when the bottom surface lc of the rail bar 1 is placed on a horizontal plane. The bottom surface 34d between the upper wall 34a and the lower wall 34c of the cover member side up-and-down direction positioning recess 34 is formed into a flat surface. The bottom surface 34d is located in a plane orthogonal to the longitudinal direction of the track rail 1. As shown in FIG. 6(B), on the intermediate plate 4 side of the end plate 5, the direction conversion path recessed portion 36 corresponding to the inner circumferential side side constituent portion 20 of the intermediate plate 4 is formed in the pair of leg portions. . The direction conversion path recesses 36, 099141684 16 201131090 form a connection unloaded return path. The seven-headed & ι U and the load ball rolling groove 12 U-shaped direction conversion path outside the peripheral side 3, .. . The outermost wall surface in the left-right direction of the concave portion 36 for the direction switching path and the outer circumferential side of the cooling direction switching path are divided into the upper surface wall φ 38b and the lower wall surface _ to form a curved surface which is a part of the round meat. The radius of curvature of the cylinder and the direction of the direction of the transition are approximately equal to the radius of curvature of the line. As shown in the front view of Fig. 6(C), the direction conversion path recess 36 is formed in a small + ^ · right direction from the middle of the leg portion 5b to the inner side surface 39. On the side surface 39 on the inner side of the pair of foot hitting portions 5b, a top portion 4Q for picking up the ball 3 rolled in the "clothing/tilting groove 10" of the track rail 1 into the direction changing path is formed. As shown in (8) of Fig. 6, the depth of the direction switching path (4) 卩 36 is smaller than the depth of the positioning concave portion 34 in the up-and-down direction of the cover member side. The bottom surface 36d of the direction changing path recess 36 is located in a plane orthogonal to the longitudinal direction of the rail bar 1. As shown in Fig. 6(B), on the lower surface side of the end plate 5, a wall portion for covering the lower surface 2〇c (see Fig. 7) of the inner peripheral side constituent portion 20 of the direction changing path is not formed. The reason why the end plate 5 is provided with the wall portion 42 covering the lower surface 20c of the inner circumferential side side constituent portion 2〇 of the direction changing path is as shown in Fig. 7, so that the end plate 5 cannot be miniaturized and corresponds to the wall portion. The thickness of 42 is not the same as the strength of the wall. By exposing the lower surface of the inner peripheral side constituent portion 2 of the intermediate plate 4, the end plate 5 can be miniaturized and the strength of the end plate 5 can be ensured. Fig. 8 is a bottom view showing the inner peripheral side constituent portion 2 () of the direction change path and the direction change path 099141684 17 201131090. As shown in the figure, the lower side of the inner peripheral side constituent portion 20 of the direction switching path is exposed. X, the top surface 20d (see FIG. 5(B)) of the inner circumferential side constituent portion 20 of the direction switching path and the bottom surface 36d (see FIG. 6(C)) of the concave portion for the direction switching path are not formed along the direction conversion path. The cylindrical surface of the center line is formed as a flat surface. It is to ensure the strength of the end plate 5. The two-point chain line in Fig. 8 represents the center line of the direction change path. When the center line of the direction change path is divided into the inner peripheral side (the intermediate plate * side) of the direction change path and the outer peripheral side (the end plate 5 side) of the direction change path, the thickness of the end plate 5 side is thin (refer to FIG. 11). The two-point chain line). When the thickness of the end plate 5 is reduced, the end portion 5 is not provided with the wall portion 42 covering the lower surface of the inner circumferential side constituent portion 2 of the direction changing path, and the strength of the pick-up portion 40 of the end plate 5 is weak. When the strength of the scooping portion 40 is weak, when the ball 3 hits the scooping portion 4, the scooping portion 4〇 is deformed in the opening direction, and the ball 3 is detached. In order to solve this problem, the top surface 2〇d of the inner circumferential side structural portion 20 of the direction switching path and the bottom surface 36d of the concave portion 36 for the direction switching path are formed into a flat surface. Further, by forming the top surface 2〇d of the inner circumferential side constituent portion 2〇 of the direction switching path and the bottom surface 36d of the concave portion of the direction changing path 36 into a plane, it is possible to easily perform the rails with respect to the intermediate plate 4丨The end plate 5 is positioned in the longitudinal direction. When the inner peripheral side (the intermediate plate 4 side) of the direction change path and the outer peripheral side (the end plate 5 side) of the direction change path are divided by the center line of the direction change path, even if the intermediate plate 4 and the end plate 5 are combined, due to the size The relationship between the differences is also easy to create a small clearance between the specialties. By forming the split surface into a plane of 099141684 18 201131090, it is difficult to generate a gap. As shown in FIG. 1, a plurality of balls 3 are arranged in a loop-shaped ball circulation path formed by the load ball rolling groove 12, the no-load return path 13, and the U-shaped direction changing path of the block main body 8. Rotating body. Regarding the diameter of the ball 3, the small one is less than 1 mm. As shown in Fig. 9, the positioning of the block body 8 and the intermediate plate 4 is performed by fitting the annular projections 24 of the intermediate plate 4 into the projection recesses 15 of the block body 8. When the projection 24 is fitted into the projection recess 15 of the block main body 8, the outer peripheral surface of the projection 24 (the portion indicated by the oblique line A1 in the drawing) and the inner peripheral surface of the projection recess 15 (the portion indicated by the oblique line A2 in the drawing) ) contact. Since the projections 24 and the projection recesses 15 are provided separately from each other, the intermediate plate 4 can be positioned in the vertical direction and the horizontal direction with respect to the block main body 8. Thus, the intermediate plate 4 is positioned relative to the block body 8 by the annular protrusion 24 around the through hole 22 of the intermediate plate 4, whereby even in the ultra-small motion guiding device in which the diameter of the ball 3 is smaller than the diameter of the screw, A large diameter protrusion 24 can also be ensured. Therefore, when the projections 24 of the intermediate plate 4 are formed, the diameter of the projections 24 can be easily managed, and the intermediate plate 4 can be firmly positioned with respect to the block body 8. As shown in Fig. 10, the outer peripheral surface 24a of the projection 24 of the intermediate plate 4 is formed into a tapered shape, and the inner peripheral surface 15a of the projection recess portion 15 of the block main body 8 is also formed into a tapered shape. By forming these into a tapered shape, the assemblability can be improved and the positioning can be performed more accurately. 099141684 19 201131090 As shown in FIG. 11, the positioning of the end plate 5 of the intermediate plate 4 in the left-right direction is performed by inserting one of the intermediate plates 4 into the direction switching path inner peripheral side constituent portion 20 in one of the end plates 5. The direction switching path is performed by the recess 36. When the pair of direction-converting-path inner peripheral side constituent portions 20 are fitted in the pair of the direction-converting-path-receiving portions 36, the one side of the intermediate plate 4 is the outermost side surface 29 of the inner-side direction side of the direction-converting path inner peripheral side component portion 20 (Fig. The middle side of the end plate 5 is in contact with the outermost wall surface 38 (indicated by the oblique line A4 in the drawing) of the one side of the end plate 5 in the left-right direction. With respect to the intermediate plate 4, the movement of the end plate 5 in the left-right direction is restricted by the side surface 29 and the wall surface 38, so that the end plate 5 can be positioned in the left-right direction with respect to the intermediate plate 4. In this way, the intermediate plate 4 and the end plate 5 are positioned in the left-right direction by the direction-converting path inner-peripheral side component 20 for arranging the ball 3 to form a component, so that the intermediate plate 4 and the end plate 5 can be miniaturized, and The intermediate plate 4 and the end plate 5 can be positioned. Here, the one pair of the intermediate plate 4 and the one pair of the direction-converting path recesses 36 of the end plate 5 and the end plate 5 are positioned with respect to the intermediate plate 4 only in the left-right direction. That is, although it is positioned in the left and right direction, it is not positioned in the up and down direction. By not positioning in the up-and-down direction, the end plate 5 can be formed without the wall portion 42 that is in contact with the lower surface 20c (see FIG. 7) of the inner peripheral side constituent portion 20 of the direction change path or the upper surface, so that the end plate 5 can be realized. miniaturization. Further, the side surface 29 of the one-to-one direction-converting path inner peripheral side constituent portion 099141684 20 201131090 20 and the wall surface 38 of one of the end plates 5 for the direction change path recess portion 36 are formed as a part of the cylinder. The curved surface can be positioned on one side and fine-tuned at the time of assembly. The positioning of the end plate 5 in the vertical direction with respect to the intermediate plate 4 is performed by fitting the upper and lower positioning convex portions 26 of the intermediate plate 4 to the upper and lower positioning concave portions 34 of the end plate 5 on the side of the cover member. When the up-and-down direction positioning convex portion 26 is fitted in the lid member side vertical positioning recessed portion 34, the upper surface 26a of the vertical direction positioning convex portion 26 (the portion indicated by the oblique line A5 in the figure) and the lower surface 26c are attached to the lid member side in the up and down direction. The upper wall 34a of the positioning recess 34 (the portion indicated by the oblique line A6 in the drawing) is in contact with the lower wall 34c. The movement in the up-down direction with respect to the end plate 5 of the intermediate plate 4 is restricted by the upper surface 26a and the lower surface 26c, the upper surface 34a and the lower surface 34c, so that the upper and lower ends can be aligned with respect to the intermediate plate 4 Board 5 is positioned. Here, the intermediate plate 4 is positioned in the up-down direction of the convex portion 26 and the cover member side of the end plate 5 in the vertical direction positioning recess portion 34, and the end plate 5 is positioned only in the vertical direction with respect to the intermediate plate 4. The through holes 32 (see Fig. 6(B)) are provided on both sides of the lid member side in the vertical direction of the cover member 5 (see Fig. 6(B)). Therefore, the end plate 5 cannot be positioned in the left and right direction with respect to the intermediate plate 4. Thereby, double positioning in the left and right directions can be prevented. Fig. 12 shows a state in which the intermediate plate 4 and the end plate 5 are positioned in the block main body 8 and fastened to the block main body 8 by screws 9 as fastening members. When the screw 9 is fastened to the block body 8, the top plate 26 of the end plate 5 side of the intermediate plate 4 is positioned in contact with the bottom plate 34 of the positioning recess 34. The fastening force of the screw 9 is transmitted to the block body 8 by the positioning convex portion 26 in the lower direction of the intermediate plate 4 and the positioning concave portion 34 in the direction of the cover member side of the left side of the plate 5. Thus, the intermediate plate 4 is positioned in the up-down direction of the convex portion 26 and the (four) member-side up-and-down direction positioning concave portion 34, and also functions as a bearing surface for the break 9 . By means of the 佶jl female, the part having the originally necessary function also has the function of positioning, and it is not necessary to provide the protrusion for positioning, so that the intermediate board 4 and the end plate 5 can be miniaturized. The present invention is not limited to the embodiments described above, and various modifications may be made without departing from the spirit and scope of the invention. For example, the end plate is positioned in the above-described direction. Therefore, the intermediate plate is formed with the up-and-down direction positioning convex portion, and the end plate is formed with the upper and lower direction positioning concave portions which are fitted in the up-and-down direction positioning convex portion. However, the relationship between the concavities and convexities may be reversed, and the concave portion may be formed in the vertical direction of the intermediate plate, and the convex portion may be positioned in the vertical direction on the side of the end plate forming cover member. (Industrial Applicability) As a use of a small motion guiding device, it is necessary to save space, save energy, and perform high-precision sports machinery and peripheral equipment. For example, medical equipment such as a remote surgery robot, a measuring device such as a small sensor, a small precision device such as a gripper, and a three-dimensional model making machine can be cited. It can be used not only in industrial machinery, but also in household appliances such as household sewing machines. Not only can 099141684 22 201131090 be used as a single unit of motion guide, but can also be used as a micro actuator by combining with a small linear motor. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a motion guiding device according to an embodiment of the present invention. Figure 2 is a cross-sectional view of the above motion guiding device. Figure 3 is a perspective view of the moving block in an assembled state. Fig. 4 is a detailed view of a moving block (Fig. (A) shows a perspective view, and (B) shows a front view). Figure 5 is a detailed view of the intermediate plate (Fig. (A) shows a perspective view of the block body side, (B) shows a perspective view of the end plate side, (C) shows a front view of the end plate side, and (D) shows a side of the end plate. view). Fig. 6 is a detailed view of the end plate (Fig. (A) shows a perspective view of the outer side of the end plate, (B) shows a perspective view of the intermediate plate side, and (C) shows a front view of the intermediate plate side). Fig. 7 is a view showing a comparison of an example in which the end plate is provided to cover the wall portion under the intermediate plate. Fig. 8 is a bottom view of the inner peripheral side constituent portion of the direction changing path of the intermediate plate and the concave portion for the direction changing path of the end plate. Figure 9 is a perspective view of the block body and the intermediate plate. Fig. 10 is a cross-sectional view showing the projection of the intermediate plate and the concave portion for the projection of the block body. Figure 11 is a perspective view of the intermediate plate and the end plate. Fig. 12 is a cross-sectional view showing a state in which the intermediate plate and the end plate are fastened to the body of the block 099141684 23 201131090 by the fastening member. [Description of main component symbols] 1 Track rails la Tracks above the upper lb Track rails left and right side lc Track rails bottom 2 Moving blocks 2a Moving block center 2b Moving block feet 3 balls (rotating 4) intermediate plate 4a central portion 4b of intermediate plate 5d end plate of moving block 5 end plate (cover member) 5a central portion 5b of end plate end portion of end plate 6 circulating part 8 block body (moving member body) 8a block body Center portion 8b Foot portion of the block body 9 Screw (fastening member) 10 Ball rolling groove (rotating body rolling portion) 12 Load ball rolling groove (load rotating body rolling portion) 12a Both ends of the load ball rolling groove 099141684 24 310 2011 2011 2011 2011 2011 2011 2011 2011 2011 The inner peripheral side of the inner peripheral side of the inner peripheral side of the path is formed by the inner peripheral side of the inner peripheral side of the intermediate portion of the intermediate plate body. One of the inner circumferential side intermediate plates of the top surface direction switching path of the upper and lower direction positioning convex portions of the upper and lower direction positioning convex portions on the upper and lower surfaces of the annular projections The side surface on the inner peripheral side of the side surface direction conversion path on the inner peripheral side upper side of the outer side surface direction switching path of the outermost side in the left-right direction is the side surface 99141684 25 201131090
30 32 34 34a 34c 34d 36 36d 37 38 38a 38b 39 40 42 A1 ^ R 方向轉換路徑内周側構成部之内側之側面 端板之通孔 蓋構件側上下方向定位凹部 蓋構件側上下方向定位凹部之上面壁 蓋構件側上下方向定位凹部之下面壁 蓋構件側上下方向定位凹部之底面 方向轉換路徑用凹部 方向轉換路徑用凹部之底面 方向轉換路徑之外周側 端板之一對方向轉換路徑用凹部左右方向最外側 之壁面 上側之壁面 下侧之壁面 腳部之内侧之側面 撈起部 壁部 A6斜線 方向轉換路徑内周側構成部 099141684 2630 32 34 34a 34c 34d 36 36d 37 38 38a 38b 39 40 42 A1 ^ R Directional change path The inner side of the inner peripheral side of the inner peripheral side of the side end plate of the through hole cover member side up and down direction positioning recessed cover member side up and down direction positioning recess The lower surface of the upper wall cover member side of the upper and lower side of the wall member, the bottom surface of the recessed portion, the bottom surface direction of the recessed portion, the bottom surface direction of the recessed portion, and the bottom surface of the recessed portion. The side of the wall surface of the lower side of the wall surface on the outermost side of the wall surface side, the side portion of the leg portion, the side portion of the wall portion A6, the oblique line direction conversion path, and the inner peripheral side side portion of the wall portion 99141684 26