九、發明說明： 【發明所屬之技術領域】 動H種於螺桿與螺帽之間插人有可進〜# =動之滾珠的滾珠螺桿、或者於軌道構二:滚 =入有可進行滾動運動之料的運料Μ置構件之 【先前技術】Nine, invention description: [Technical field of invention] Dynamic H is inserted between the screw and the nut. There is a ball screw that can enter the ##=moving ball, or the track structure is two: roll=into roll [Previous technology] of the material handling member of the moving material
於螺桿與螺帽m有可進行滾動運動 =，相較於滑動接觸之螺桿，可減少 = =之摩擦係數，故可實用於工具機之定位機構、= 之轉向、導引裝置、運動用螺桿等各種領域内。-車 滚珠螺桿係將螺桿之螺旋狀滚珠 f動槽搭配於同—位置上，且於由此而產生之槽; 固滾珠，並形成肖以使滾珠於螺帽之循環構 環路徑者。在螺桿之滾珠滚動槽内滾動之滾珠， 不循環構件！之唇部2(亦稱為舌部，以下相同）接觸，而 破掏取至循環構件之循環路徑内。 然而，伴隨工具機等高速進給之要求，使滚珠螺桿高速 旋轉之情形增多。有關習知之滾珠螺桿，當使滾珠螺桿高 速旋轉時（使用螺桿每分鐘之轉速與滾珠之旋轉直徑相乘 之值DN值作為旋轉速度之標準），存在因反覆衝擊滚珠唇 ^部，導致於循環構件1之唇部2的基底出現應力集中，並 .由此使得唇部2產生金屬疲勞而造成破損之情形。 為解決該問題，本專利申請人提出即便不設置唇部2亦 可掏取滾珠之滾珠螺桿（參照專利文獻丨）。如圖2所示， 312XP/發明說明書(補件 y95_09/951182〇〇 6 ⑶M76 ’、因於循裱構件3之兩端部設置具有寬度逐漸 =="，故由船底形掏取部4之槽兩侧逐』 並且將其掏取至循環路徑内。該發明盔♦讯 容易破損之辰却〇 η ·，，、而叹置 、。4 2即可掏取滾珠5，故可實際應用& t 旋轉之滾珠螺桿。 ^用於呵迷 刺^ I專利申請人提出進一步改良船底形掏取部之專 '獻2中所揭示的發明。如圖3所示，該發明之 :防=入於滾珠5間的分隔…在船底形掏取:在4 .、’，如圖4所示，於船底形掬取部4之底部机番八 隔件掏取部7,其不會與滾珠5接觸而僅與分叹刀 可防止分隔件6卡住。因此，為避免與滚珠5相接觸觸: ::! t部7之内周面8相對於循環路徑之内周面9，： 者則舳向外側傾斜（換言之，為喇σ八狀）。 專利文獻1 :日本專利特開2000- 18359號公報 f利文獻2:日本專利特開顧_ 281 92號 【發明内容】 (發明所欲解決之問題） 而近朿出現以更尚之D N值使滾珠螺;p 要求。本發明:# “速旋轉之 Μ AA ή/L Λ 、 回之⑽值長時間使滾珠螺桿旋 轉後的亂底形掏取部，並分 種影響。由此，發現掏心^ 船底形掏取部產生何 ^ ^ x見掏取滾珠之船底形掬取部4合旦當縻 耗，導致船底形掏取部4 曰“摩 ^ 之槽寬逐漸增大，其結果如圖 取部4自螺桿之滾珠滾動槽開始掏取 滚珠的掏取點1G將逐漸向循環路徑之内側移動。並^， 312XP/發明說明書(補件)/95-09/95 Π 8200 ? ‘隔件掏取4之異常摩耗’最終會導致滾珠與 掏取滚珠的情形㈣，與之唇部2(參照圖n 最終會因滾珠之㈣為^刀隔件掏取部7掏取滾珠， 身m 衝著而造成分隔件掏取部7破損。 牙口底形掏取部4之廑 只 所示，承玻R 6保摩 下分別考慮為：如圖5(A) 路徑ΐΓ中日士所吝、f之滾珠滚動槽掏取至猶環構件之循環 珠5 Λ 者；以及與此相反如圖5⑻所示，滾 首先如Γ構件之㈣路徑U返回至螺桿時所產生者。 =至=5⑷所示，說明滾珠5自螺 獨取至循環構件之抵Ρ _ 叫％ 環路徑11配置;^ 所產生的摩耗。若將循 上物m 線方向’並於螺桿之切線方向 過強之’：5 ’則理論上於船底形掏取部4中並不會產生 力。然而實際上’當掏取滾珠5時，可以禮 ^略微向螺桿之軸線方向偏斜，並於船底形掏取… 掏取：1。上滾珠5被掏取至循環路徑u内之執道。故 :艇若使滾珠5高速移動，則滾珠5將與分隔件掏取部7 接觸’由此而造成分隔件掏取部7之摩耗。 另方面如圖5(B)所示，當滾珠5自循環構件返 至螺桿之滾珠滾動槽時，插入於螺帽與螺桿間之滾珠受到 預壓力，故於循環構件之循環路徑u内後方滾珠5 一面 推動前方滾珠5之下，前方滾珠5一面進入到螺帽與螺桿 之間。此處，分隔件掬取部7以特定傾斜角度為 10度左右）相對循環路徑11之内周面傾斜，由此循環路 徑11内滾珠5之移動空間亦將增大，如圖5(β)所示後 312ΧΡ/發明說明書(補件)/95-09/95118200 8 ^51476 擺晃動地推動前方滾珠5。因該滾珠5之蛇 二=母隔一個的滾珠5均推擠船底形掏取部“每隔 掏取部4易於產生摩耗。圖6 ，成船底形 耗 手朽®b係表不船底形掏取部產生摩 4二:例。可知悉摩耗朝向船底形掏取部4之底部 隔為防止因船底形掏取部4之摩耗，使滾珠與分 將接觸後’造成分隔件掏取部之破損，而嘗試 刀:：掏取部7之傾斜角度α改變為大於習知之⑺度 隔件it二仍舊會產生相同之問題。亦即，無論分 題。^ 7之傾斜角度如何增加’皆無法解決根本之問 本發明之目的在於提供一種即便以高⑽ 二轉：珠螺桿，船底形掏取部亦難以 ：二 牙于，及運動導引裝置。 予代< 衣珠螺 (解決問題之手段） 萨阶下說明本發明。為易於理解本發日月，而於括F中;Pi 隨附圖式之元侏鉻祙，蚀二 爪花現T s主 之形態。m然而不可藉此將本發明限定為圖式 珠ΠϊΓ題，申請專利範圍第1項之發明係-種滾 旋狀滾珠滾_a);螺帽(22)，其: 上述螺桿（21)之上述滾珠滾 相^ 乂 一 滾珠滾動㈣m )相對的螺旋狀負載 動槽(22a)’多個滾珠⑽，其等插入於上述螺桿 3】2XP/發明說明書(補件)/95-0咖82〇〇 9 1351476 (21)之滾珠滾動槽（2ia)與上述螺帽（22)之負載滾珠滾動 槽（22a)間；循環構件（28)，其具有使滾動於上述螺桿（21) •’之滚珠滾動槽（21a)與上述螺帽（22)之上述負載滾珠滾動 槽（22a)間的滚珠（23)進行循環之循環路徑（25);該滾珠 螺桿之特徵在於：於上述循環構件（28)中設置具有朝向上 述循環路徑（25)之内側而寬度逐漸變窄之槽（41)的船底 形掏取部（42)，且以上述船底形掏取部（42)之槽（41)兩側 _環抱上述螺桿（21)的滾珠滾動槽（2ia)中滾動之上述滾珠 (23)，並且將其等掏取到上述循環構件（28)之上述循環路 徑（25)内’於上述船底形掏取部（42)中設置突出至上述螺 桿（21)之滾珠滾動槽（2ia)内的唇部（43)，且於上述船底 形掏取部（42)自上述螺桿（21)之滾珠滾動槽（21a)開始掏 取上述滾珠（23)的掏取點（p)，上述船底形掏取部（42)以 及上述唇部（43)之兩者與上述滾珠（23)接觸。 申味專利範圍第2項之發明係如申請專利範圍第1項之 #滾珠螺桿，其甲於上述唇部（43)中，形成相對於上述循環 構件（28)之内周面而朝著前端向外側傾斜之推拔（^per) 面（43b)，且於上述掏取點（p)，上述唇部（43)之上述推 拔面（43b)與上述滾珠（23)接觸。 申請專利範圍第3項之發明係-種滾珠螺桿，該滾珠螺 '桿具備螺桿（21)，其於外周面上形成螺旋狀滾珠滾動槽 (21a);螺帽（22)，其於内周面上形成與上述螺桿（Η)之 上述滾珠滾動槽（21a)相對向的螺旋狀負載滾珠滾動槽 (22a)，夕個滾珠（23)，其等插入於上述螺桿（21)之滾珠 312XP/發明說明書(補件)/95〇9/95 i 182〇〇 10 !351476 滾動槽（21 a)與上述螺帽（22)之負載滾珠滾動槽（22a) 間；循環構件（28)，其具有使滾動於上述螺桿（21)之滾珠 ·· 滾動槽（21a)與上述螺帽（22)之上述負載滾珠滾動槽（22a) - 間的滾珠（23)進行循環之循環路徑（25);該滾珠螺桿之特 徵在於：於上述循環構件（28)中設置具有朝向上述循環路 徑（25)之内側而寬度逐漸變窄之槽（41)的船底形掬取部 (42) ’且以上述船底形掏取部（42)之槽（41)兩側環抱滚動 •於上述螺桿（21)的滾珠滾動槽（21a)中之上述滾珠（23)， 並且將其等掏取到上述循環構件（28)之上述循環路徑（25) 内’於上述船底形掏取部（42)設置突出至上述螺桿（21) 之滾珠滾動槽（21 a)内的唇部（43)，上述唇部（43)具有基 部（43a)及前端部（43b)，相對於上述循環構件（28)之上述 #環路徑（2 5 )的内周面並未傾斜，或者朝向前端向外側傾 斜不滿5度，使上述基部（43a)之内周面可與上述船底形 掏取部（42)所掏取之上述滚珠相接觸。 φ 申請專利範圍第4項之發明係如申請專利範圍第3項之 滾珠螺桿，其t於上述唇部（43)之前端部（43b)的内周面 上，形成相對於上述循環構件（28)的上述循環路徑（25) 之内周面朝著前端向外側傾斜的推拔面（43b)，且於上述 船底形掏取部（42)自上述螺桿（21)之滾珠滾動槽（21&)開 始掏取上述滾珠（23)的掏取點（P)，上述船底形掏取部（42) 以及上述唇部（43)之上述推拔面（43b)兩者與上述滾珠 (23)接觸。 申4專利範ϋ第5項之發明係如申請專利範圍第3或4 312ΧΡ/發明說明書(補件)/95-09/95118200 π 丄川476 項之滾珠螺桿’其中自上述螺桿(21)之軸線方向觀察，上 •述。=(43)之上述基部（43a)具有圓弧狀（圓（]))缺口。 • 申吻專利範圍第6項之發明係如申請專利範圍第】至5 •項巾任項之滾珠螺桿，其中於上述多個滚珠⑵）之間， 插入有防止相鄰接的滾珠（23)彼此接觸之多個分隔件 (、24)，且上述唇部（43)與上述分隔件（24)接觸，並將上述 分隔件（24)掏取到上述循環構件（28)内。 _ 申請專利範圍第7項之發明係如申請專利範圍第6項之 滾珠螺桿，其中對上述分隔件（24)所接觸之上述唇部 的七h (43C)施以去角（chamfer)。 申請專利範圍第8項之發明係一種運動導引裝置，該運 動導引装置具備軌道構件（51)，其具有滾珠滾動槽 (51a)，滑動構件（52)，其具有與該滾珠滾動槽（5la)相對 應之負载滾珠滾動槽，並組裝於上述執道構件（5丨）上且可 相對自由運動；多個滾珠’其等插入於上述軌道鐵軌（51) 修之滾珠滾動槽（51a)與上述滑動構件（52)之負載滾珠滚動 槽間’循環構件（53)，其具有使滚動於上述軌道構件（51) 之滾珠滚動槽（5la)與上述滑動構件（52)之上述負載滾珠 滾動槽間的上述滾珠進行循環之循環路徑（55);該運動導 引裝置之特徵在於：於上述循環構件（53)中，設置具有朝 向上述循環路徑（55)之内側而寬度逐漸變窄之槽的船底 •形掏取部（61)，且以上述船底形掏取部（61)的槽兩側環抱 滾動於上述執道構件（51)之上述滚珠滾動槽（51a)上的上 述滚珠’並且將其等掬取到上述循環構件（53)之上述循環 312XP/發明說明書(補件)/95.09/95118200 12 1351476 路徑（55)内’而於上述船底形掏取部（61)中，設置有突出 至上述轨道構件（51)之上述滾珠滾動槽（51a)内的唇部 * (62)，且於上述船底形掏取部（61)自上述執道構件（51) 、 之滚珠滚動槽（51a)開始掬取上述滾珠的掬取點，上述船 底形掏取部（61)以及上述唇部（62)之兩者與上述滾珠接 觸。 (發明效果） 據申叫專利範圍第1項之發明，於掏取點，以船底形 掏取部上之2點與唇部上之〗點（其中，唇部與滚珠亦可 為2點以上之接觸）合計3點掬取滾珠故可減少船底形 掏取部中所產生之摩耗。 - 根據申請專利範圍帛2項之發明，於掬取點，以船底形 掏取部與唇部之推拔面兩者掏取滾珠。 _根據申明專利|&圍第3項之發明，滾珠自循環構件之循 3徑返回螺帽（及螺桿）時，唇部之基部抑制滾珠晃動， 珠推壓船底形掏取部之分力亦將減小。因此，可減少 船底形掏取部令所產生之摩耗。 掏=!請專利範圍第4項之發明，於掏取點，以船底形 中辰°之2點與唇部之前端侧之内周面上的1點(苴 二;二:與，可為2點以上之接觸)合計3點掏取滾珠: / 乂舦底形掏取部中所產生之摩耗。 jrrrr圍第5項之發明，可緩解唇部令所產生 之應力集中。因此’可防止唇部破損。 312XP/發明說明書(補件)/95-09/95丨18200 根據申請專職圍第6項之發明，可防止插人於滾珠間 13 ⑶ 1476 之分隔件卡入船底形掏取部中。 根據申料㈣㈣7項之料，可 唇部之前端部。 刀隔件文阻於 掏= : = 項之發明’於掏取點，以船底形 们取社之2點與魯部上的1點(其中，唇部 點以上之接觸）合計3點掏取滾 "”， 取部中所產生之摩耗。 文了減少船底形掏 【實施方式】 圖7係表示本發明第！實施形態之滾珠螺桿 滚珠螺桿具備螺桿21，其於外周面上形 ^ =動槽2U;…，其於内周面上 滚 仏相對向之螺旋狀負載滾珠滾動槽仏。螺桿 =動㈣與螺帽22之負載滾珠滾動 = ’多個滾珠23排列為可進行滾動運動負= ^施加預塵力，亦即透過螺桿21與螺帽 = 負載。於滚珠23間插人有用於防止滚珠23彼 ^缩 隔件24。 牧碉又刀 為使滾動於負載滚動路徑AJl之多個_ 2 於螺帽Μ中形成有循環路徑B，其連接負·動路^ 之-端與另-端。循環路徑Β形成於插入至螺帽 循環構件27、28内。於該實施形態中，循環構件27、28 包含管體27以及設置於管體27兩端之末端構件^。若 使螺帽22相對於螺桿21旋轉，則滾珠23將一面承鸟負 載-面於滾珠滾動# 21a與負载滚珠滚動槽^之:滾 312XP/發明說明書(補件)/95-09/9511咖〇 14 1351476 動。，袞動至負载滾動路獲A -端的滾珠23由末端構件28 掏取並且，經由管體27自相反側之末端構件28而返回 至原先之負載滾動路徑A。 以下詳細5兒明各部分之構造。如圖7所示於螺桿Η 周上形成有具有特定引導角（引導角石）之螺旋狀 滚珠滾動槽21a。螺桿21之剖面形狀形成為例如組合有 兩個圓弧之歌德式尖拱（Gothic Arch)槽形等。於該實施 形態中s ’為使容許負載增加且縮短螺帽22之全長，而將 滾珠滾動槽21a之條數設定為兩條。當然，滾珠滾動样 21a之條數亦可設定為一條、兩條、三條等種種。曰 圖8係表示沿著螺帽本體29之軸線方向的剖視圖。於 =目本^ 29之内>周面上’形成有與螺桿21之滾珠滾動槽 a目？向的螺旋狀負载滾珠滾動 & =:Γ形狀，亦與螺桿21之滾珠滾動槽= =狀相同，可形成為組合有兩個圓弧歌德式尖拱槽之形 狀專。於螺帽本體29中，形成有與螺帽本體29之轴 订^伸的通孔30a。將管體27插入於該通孔咖中並 =官體27之内部形成有直線狀滚珠返迴路徑來昭圖 :)。於螺帽本體29之轴線方向的兩個端面上，形成有、： 部30b，並於該凹部3〇b中安f 件"’形成有圓二;:有方=2—8。於末端構 7)。 、呷之方向轉換路徑25(參照圖 如圖9所示，末端構件28透過螺栓31等緊固 合於螺帽本體29之端面32上。笋由將丈被姓’冓0 猎由將末端構件28安裝 312XP/發明說明書(補件)/95-09/95118200 15 上呼/6 rm29上’而使管體27包夾於-對末端構件28 兩組包含ί = 態中’由於使用雙紋螺桿’故設有合計 當铁循"盖： 28及管體27之循環構件27、⑼， 各種設；; 28之個數可根據螺桿21之條數等進行 構：：7二示罩：螺!本體29之端面中安裝有覆蓋末端 止潤滑劑自螺帽本附者於螺桿21上之異物並防 有 _ 體29内部洩漏，而於該遮罩34中袓f 有述宮密封或者環狀密封構件33。 T、、且裝 向二旋狀負載滾動路徑Α、圓弧狀方 圖中 直線狀滾珠返迴路徑26上循環之軌道。 ^ φ 丁螺梓21之軸線方向觀察到的滾珠23之執 道中心線，阁 軌道中、、/ ()表不自螺桿21側觀察到的滚珠23之 滾動路徑A中滾珠23 捏μ中_ 2t = /_狀°另—方面，滾珠返迴路 珠23之軌道係與螺桿21之軸線21c平行的直 t之且圓’：向轉換路徑25中滚珠23之執道係曲率半徑 I負截。該等負載滾動路徑A、方向轉換路徑25及 i連續。迴路# 26之接財，滚珠23之軌道在切線方向 乂^::滾珠㈡之掏取方向❶如㈣⑴所^自螺 ^的珠23於負㈣動賴A之圓形 才曰21側_狡上被掬取。並且，如圖11(B)所示，自螺 杯21側觀察，滾珠23於與引導角相-致之方向上被掬取。 312ΧΡ/^0^»»)/95.〇9/951182ΟΟ 1351476 圖^表示構成循環構件之末端構件28的立 =寺徵體現於該末端構件28上。於末端構件28上形 成有船底形掏取部42，1且右翻装女a 寬度逐漸變窄之禅41 轉換路徑而内側 侧〜以該船底形掏取部42之槽41兩 2= 且將其掏取至末端構件28之方向轉換 而’於該船底形掏取部42之槽41底部（方The screw and the nut m can be rolled. = Compared with the sliding contact screw, the friction coefficient of == can be reduced, so it can be used for the positioning mechanism of the machine tool, the steering of the machine, the guiding device, and the screw for the movement. And so on in various fields. - The ball screw system is used to match the spiral ball f groove of the screw to the same position, and the groove formed thereby; the ball is fixed, and the ball is formed to make the ball loop on the loop of the nut. The ball rolling in the ball rolling groove of the screw does not circulate the member! The lip 2 (also referred to as the tongue, the same below) contacts and breaks into the circulation path of the circulation member. However, with the demand for high-speed feed such as a machine tool, the situation in which the ball screw is rotated at a high speed is increased. Regarding the conventional ball screw, when the ball screw is rotated at a high speed (using the value of the screw per minute and the rotational diameter of the ball to multiply the value of the DN value as the standard of the rotational speed), there is a reverse impact on the ball lip portion, resulting in circulation The base of the lip 2 of the member 1 is subjected to stress concentration, and thereby causes the lip 2 to cause metal fatigue to cause breakage. In order to solve this problem, the applicant of the present application has proposed a ball screw that can pick up a ball even without providing the lip portion 2 (refer to the patent document 丨). As shown in Fig. 2, the 312XP/invention specification (supplement y95_09/951182〇〇6 (3) M76 ', because the both ends of the circumscribing member 3 are provided with a width gradually ==" Both sides of the slot are slid and pulled into the circulation path. The invention helmet is easy to break, but 〇 ·,,,, and sigh, 4 2 can draw the ball 5, so it can be practically applied & t Rotating ball screw. ^Used for smashing ^I Patent applicant proposes to further improve the invention of the ship bottom shape extraction section. As shown in Figure 3, the invention: The separation between the balls 5... in the shape of the bottom of the ship: at 4, ', as shown in Fig. 4, at the bottom of the bottom of the bottom of the bottom of the boat, the partitioning portion 7 is not in contact with the ball 5 Contact and only the singer can prevent the partition member 6 from being caught. Therefore, in order to avoid contact with the ball 5: :: The inner peripheral surface 8 of the portion 7 with respect to the inner circumferential surface 9 of the circulation path, The 舳 is inclined to the outside (in other words, it is arbitrarily argon). Patent Document 1: Japanese Patent Laid-Open No. 2000-18359, Ref. Document 2: Japanese Patent Special Open _ 281 92 [ SUMMARY OF THE INVENTION (Problems to be solved by the invention) Nearly 朿 appears to make the ball screw with a more DN value; p. The present invention: # "Speed rotation Μ AA ή / L Λ , back (10) value for a long time to make the ball After the screw rotates, the chaotic bottom shape is taken, and the effect is divided. Thus, it is found that the bottom of the ship is shaped by the bottom of the ship, and the bottom of the ship is shaped by the bottom of the boat. The bottom shape of the bottom portion of the shovel is increased gradually. As a result, as shown in the drawing portion 4, the ball picking point 1G from the screw rolling groove of the screw will gradually move toward the inner side of the circulation path. , 312XP / invention manual (supplement) / 95-09/95 Π 8200 ? 'Partition capture 4 abnormal wear' will eventually lead to the ball and the ball (4), with the lip 2 (refer to Figure n final The ball is removed by the (4) of the ball, and the ball is pulled by the body to cause the partitioning portion 7 to be damaged. The bottom of the mouth is only shown, and the glass is R 6 The following are considered as follows: Figure 5 (A) Path ΐΓ 日 吝 吝 吝 吝 吝 吝 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚 滚And in contrast to this, as shown in Fig. 5 (8), the roller is first produced as the (4) path U of the Γ member is returned to the screw. = to = 5 (4), indicating that the ball 5 is taken from the screw alone to the circulation member _ _ The ring path 11 is configured to generate a frictional force. If the 'mesh direction' of the object in the m-line direction and is too strong in the tangential direction of the screw, the force is not generated in the bottom shape extraction portion 4. However, in fact, when the ball 5 is taken, it can be slightly deflected toward the axis of the screw and captured at the bottom of the ship... Capture: 1. The upper ball 5 is captured to the way in the circulation path u. Therefore, if the boat moves the ball 5 at a high speed, the ball 5 will come into contact with the partition catching portion 7, thereby causing wear of the partition extracting portion 7. On the other hand, as shown in FIG. 5(B), when the ball 5 is returned from the circulation member to the ball rolling groove of the screw, the ball inserted between the nut and the screw is subjected to the pre-pressure, so that the ball is recirculated in the circulation path u of the circulation member. 5 While pushing the front ball 5, the front ball 5 enters between the nut and the screw. Here, the partition scooping portion 7 is inclined with respect to the inner peripheral surface of the circulation path 11 at a specific inclination angle of about 10 degrees, whereby the moving space of the balls 5 in the circulation path 11 is also increased, as shown in FIG. 5 (β). The rear 312 ΧΡ / invention manual (supplement) / 95-09 / 95118200 8 ^ 51476 swaying forward the ball 5 . Because the ball 5 of the ball 5 = the ball 5 of the mother is pushed by the bottom of the ship, the portion of the bottom of the boat is "when the picking portion 4 is easy to produce friction. Figure 6. The shape of the bottom of the ship is ruined by the bottom of the ship. The take-up part generates the motorcycle 4: For example, it can be seen that the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom of the bottom portion 4 is prevented from being worn by the bottom of the bow-shaped portion 4, causing damage to the partitioning portion of the partition. And try the knife:: the tilt angle α of the picking unit 7 is changed to be larger than the conventional (7) degree spacer. The second one still produces the same problem. That is, no matter how the sub-question. The basic object of the present invention is to provide a bottom-shaped picking portion that is difficult to use even with a high (10) two-turn: bead screw: a second tooth, and a motion guiding device. 代代<衣珠螺 (a means of solving the problem) The invention is described in the following paragraphs. For easy understanding of the date and time of the hair, and in the F; Pi with the enamel enamel of the figure, the eclipse is the form of the T s main. The invention is limited to the figure of the beading problem, and the invention system of the patent application scope 1 a ball-shaped roller _a); a nut (22), wherein: the ball rolling phase of the screw (21) is rolled by a ball (four) m) the opposite helical load moving groove (22a) 'a plurality of balls (10), etc. Inserted between the above-mentioned screw 3] 2XP / invention manual (supplement) / 95-0 coffee 82 〇〇 9 1351476 (21) ball rolling groove (2ia) and the above-mentioned nut (22) loaded ball rolling groove (22a) a circulation member (28) having a ball (23) that circulates between the ball rolling groove (21a) of the screw (21) • and the load ball rolling groove (22a) of the nut (22) a circulation path (25); the ball screw is characterized in that a bottom shape of the groove (41) having a width gradually narrowing toward the inner side of the circulation path (25) is provided in the circulation member (28) ( 42), and the ball (23) rolling in the ball rolling groove (2ia) of the screw (21) is circumscribed by the groove (41) of the above-mentioned ship bottom-shaped drawing portion (42), and is drawn by the ball (23) Provided in the above-mentioned circulation path (25) of the above-mentioned circulation member (28) to protrude into the above-mentioned ship bottom shape extracting portion (42) (21) a lip portion (43) in the ball rolling groove (2ia), and the ball-shaped rolling portion (21) is taken from the ball rolling groove (21a) of the screw (21) to draw the ball (23) The picking point (p), the bottom shape capturing portion (42) and the lip portion (43) are in contact with the ball (23). The invention of claim 2 is as claimed in the patent scope. In the above-mentioned lip portion (43), a bead screw (43b) which is inclined outward toward the front end with respect to the inner peripheral surface of the circulation member (28) is formed. And at the pick-up point (p), the push-out surface (43b) of the lip portion (43) is in contact with the ball (23). The invention of claim 3 is a ball screw having a screw (21) which forms a spiral ball rolling groove (21a) on an outer peripheral surface, and a nut (22) which is inside the inner circumference A spiral-shaped load ball rolling groove (22a) opposed to the ball rolling groove (21a) of the screw (,) is formed on the surface, and a ball (23) is inserted into the ball 312XP of the screw (21). Disclosure of Invention (Supplement) / 95〇9/95 i 182〇〇10 !351476 Between the rolling groove (21 a) and the loaded ball rolling groove (22a) of the above nut (22); the circulation member (28) having a circulation path (25) for circulating a ball (23) that is rolled between the ball/rolling groove (21a) of the screw (21) and the loaded ball rolling groove (22a) of the nut (22); The ball screw is characterized in that a bilge-shaped scooping portion (42) having a groove (41) which is gradually narrowed toward the inner side of the circulation path (25) is provided in the circulation member (28) and is formed in the stern shape described above. The groove (41) of the drawing portion (42) is circumscribed on both sides of the groove (41) in the ball rolling groove (21a) of the screw (21) The ball (23) is drawn into the circulation path (25) of the circulation member (28). The ball-shaped rolling groove is protruded from the bottom-shaped drawing portion (42) to the screw (21). a lip portion (43) in (21a), wherein the lip portion (43) has a base portion (43a) and a front end portion (43b), and an inner circumference of the #loop path (25) with respect to the circulation member (28) The surface is not inclined, or is inclined to the outside toward the outside by less than 5 degrees, so that the inner peripheral surface of the base portion (43a) can be brought into contact with the balls drawn by the ship bottom-shaped scooping portion (42). The invention of claim 4 is the ball screw of claim 3, which is formed on the inner peripheral surface of the front end portion (43b) of the lip portion (43) with respect to the above-mentioned circulating member (28). a pushing surface (43b) of the inner circumferential surface of the circulation path (25) inclined outward toward the front end, and a ball rolling groove (21& from the screw (21) of the ship bottom shaped drawing portion (42). Starting to draw the pick-up point (P) of the ball (23), the bottom-shaped drawing portion (42) and the push-out surface (43b) of the lip portion (43) are in contact with the ball (23) . The invention of claim 4 of the patent No. 5 of claim 4 is as claimed in claim 3 or 4 312 ΧΡ / invention specification (supplement) / 95-09/95118200 π 丄chuan 476 ball screw 'from which the above screw (21) Observe in the direction of the axis. The base portion (43a) of = (43) has an arc-shaped (circle (])) notch. • The invention of the sixth aspect of the patent application is the ball screw of the item No. 5 to 5, wherein the ball (23) is inserted between the plurality of balls (2)) to prevent adjacent balls (23). A plurality of partition members (24) that are in contact with each other, and the lip portion (43) is in contact with the partition member (24), and the partition member (24) is drawn into the circulation member (28). The invention of claim 7 is the ball screw of claim 6, wherein the seven-h (43C) of the lip contacted by the partition (24) is chamfered. The invention of claim 8 is a motion guiding device having a rail member (51) having a ball rolling groove (51a) and a sliding member (52) having a rolling groove with the ball ( 5la) corresponding load ball rolling groove, and assembled on the above-mentioned obstructing member (5丨) and relatively free to move; a plurality of balls 'inserted into the track rail (51) to be repaired by the ball rolling groove (51a) a load ball rolling groove 'circulation member (53) of the sliding member (52) having a load for rolling the ball rolling groove (5la) of the track member (51) and the sliding member (52) a circulation path (55) of the ball between the ball rolling grooves; the movement guiding device is characterized in that the circulation member (53) is provided with a width gradually narrowing toward the inner side of the circulation path (55) a stern-shaped staking portion (61) of the groove, and the ball on the ball rolling groove (51a) of the trajectory member (51) is hovered on both sides of the groove of the bilge-shaped scooping portion (61) 'And equalize it Taking the above-mentioned cycle 312XP/invention specification (supplement)/95.09/95118200 12 1351476 path (55) of the above-mentioned circulation member (53), and in the above-described ship bottom shape extracting portion (61), protrusions are provided to the above-mentioned track a lip portion (62) in the ball rolling groove (51a) of the member (51), and the bottom shape scooping portion (61) starts from the ball bearing groove (51a) of the arm member (51) The ball-shaped scooping portion (61) and the lip portion (62) are both in contact with the ball. (Effect of the invention) According to the invention of claim 1 of the patent scope, at the point of picking, the point on the bottom of the boat is taken from the point of 2 points on the lip and the point on the lip (where the lip and the ball can also be 2 or more points) The contact) takes a total of 3 points to pick up the balls, so that the friction generated in the bottom shape of the ship can be reduced. - According to the invention of claim 2, at the point of picking, the ball is drawn by both the bottom of the boat and the push surface of the lip. According to the invention of claim 3, and the invention of the third item, when the ball returns to the nut (and the screw) from the circulation member, the base of the lip suppresses the ball sway, and the force of the ball pushes the bottom of the boat. It will also decrease. Therefore, the friction generated by the bottom shape of the ship can be reduced.掏=! Please invent the invention of item 4 of the patent scope, at the point of picking, at 2 points in the bottom of the ship's bottom and 1 point on the inner peripheral side of the front end of the lip (苴二;二:和,可以Contact at 2 o'clock or more) Total 3 points to pick up the ball: / The friction generated in the bottom-shaped extraction part. Jrrrr's invention of item 5 mitigates the stress concentration caused by the lip order. Therefore, the lip can be prevented from being damaged. 312XP/Invention Manual (Repair)/95-09/95丨18200 According to the invention of the sixth application of the full-time application, it is possible to prevent the separator inserted into the ball between the ball 13 (3) 1476 from being caught in the bottom shape of the ship. According to the materials in Item 7 (4) and (4), the front end of the lip can be used. The knife partition is obstructed by the invention of 掏 = : = item's point of view, taking 2 points from the bottom of the ship and 1 point on the part of the Lu (where the contact above the lip point) is 3 points Rolling "", the friction generated in the portion is obtained. [Embodiment] FIG. 7 shows a ball screw of a ball screw of the embodiment of the present invention, which has a screw 21 which is formed on the outer peripheral surface. The moving groove 2U;..., which rolls on the inner peripheral surface with respect to the helically loaded ball rolling groove. The screw=moving (four) and the loaded ball rolling of the nut 22 = 'the plurality of balls 23 are arranged to be capable of rolling movement negative = ^ Apply pre-dusting force, that is, through the screw 21 and the nut = load. Inserting between the balls 23 is used to prevent the balls 23 from being folded down. The grazing knife is used to roll the load rolling path AJl. A plurality of _ 2 are formed in the nut bore with a circulation path B connecting the end of the negative/movement path and the other end. The circulation path Β is formed in the nut circulation members 27, 28. In this embodiment The circulation members 27 and 28 include a pipe body 27 and end members provided at both ends of the pipe body 27. 22 with respect to the rotation of the screw 21, the ball 23 will bear the load on one side - the surface rolling on the ball # 21a and the load ball rolling groove ^: Roll 312XP / invention manual (supplement) / 95-09/9511 curry 14 1351476 The ball 23, which is swayed to the load rolling path and obtained at the A-end, is picked up by the end member 28 and returned to the original load rolling path A from the opposite end member 28 via the pipe body 27. Part of the configuration. A spiral ball rolling groove 21a having a specific guiding angle (guide angle) is formed on the circumference of the screw as shown in Fig. 7. The sectional shape of the screw 21 is formed, for example, as a Gothic tip combined with two circular arcs. In the embodiment, s ' is to increase the allowable load and shorten the total length of the nut 22, and the number of the ball rolling grooves 21a is set to two. Of course, the ball rolling sample 21a The number of the strips may be set to one, two, three, etc. Fig. 8 is a cross-sectional view taken along the axial direction of the nut body 29. In the inner surface of the body 29, > 21 ball rolling groove a mesh direction spiral negative The ball rolling & =: Γ shape is also the same as the ball rolling groove of the screw 21 = =, and can be formed into a shape in which two arc Goethe-type pointed arch grooves are combined. In the nut body 29, a The through hole 30a of the shaft of the nut body 29 is defined. The tube body 27 is inserted into the through hole and the inside of the body 27 is formed with a linear ball return path to show a picture: On both end faces of the axial direction of the 29, a portion 30b is formed, and in the recess 3b, a member is formed with a circle 2; a square = 2-8. At the end of the structure 7). The direction change path 25 of the cymbal (see FIG. 9 is shown in FIG. 9 , the end member 28 is fastened to the end surface 32 of the nut body 29 via the bolt 31 or the like. The bamboo shooter is named by the surname '冓0 hunted by the end member 28 installation 312XP / invention manual (supplement) / 95-09/95118200 15 upper call / 6 rm29 on 'and the tube body 27 is clamped on - the end member 28 two sets contain ί = in the state 'due to the use of double-screw 'Therefore, there is a total of when the iron cycle " cover: 28 and the tubular body 27 of the cycle member 27, (9), various settings;; 28 the number can be based on the number of the screw 21, etc.:: 7 two cover: screw The end surface of the body 29 is provided with a foreign material covering the end stop lubricant from the nut attached to the screw 21 and preventing the inside of the body 29 from leaking, and in the mask 34, the 袓f has a palace seal or a ring shape. The sealing member 33 is attached to the track of the linear ball return path 26 in the arc-shaped load rolling path T and the circular arc-shaped pattern. ^ φ The ball 23 observed in the axial direction of the snail 21 In the center line of the road, the track in the orbit, / () is not observed from the side of the screw 21, the rolling path A of the ball 23 is pinched in the ball 23 In the case of μ _ 2t = / _ ° °, in other respects, the track of the ball returning ball 23 is parallel to the axis 21c of the screw 21, and the circle ': the curvature radius I of the ball 23 in the conversion path 25 Negative cut. The load rolling path A, the direction change path 25 and i are continuous. The loop #26 is connected, the track of the ball 23 is in the tangential direction 乂^:: the direction of the ball (2) is as follows (4) (1) The bead 23 is drawn on the side of the negative (four) A A 曰 21 side _ 狡, and, as shown in Fig. 11 (B), the ball 23 is observed from the side of the screw cup 21 The direction is drawn. 312ΧΡ/^0^»»)/95.〇9/951182ΟΟ 1351476 Fig. 2 shows that the end member 28 constituting the end member 28 of the circulation member is embodied on the end member 28. The bottom member 28 is formed with a bottom-shaped dip portion 42, 1 and a right-turning female a width gradually narrowing the Zen 41 conversion path and the inner side to the bottom of the bottom-shaped capturing portion 42 two 2 = and will The direction of the extraction to the end member 28 is switched to the bottom of the groove 41 of the bottom shape of the boat.
=…之内側)，設置有突出至螺桿21之滾珠滾 動槽21a内的唇部43。 圖13所示末柒構件2 8沿著方向轉換路徑2 5之中 ^線’兩等份分割為内周側之R形件⑽與外周侧之末端 件船底形掏取部42及唇部“亦作兩等份分割。r 形件28a包含安裝於螺帽本體29之端面上的凸緣部料、 及與該凸緣部44形成為一個整體且形成有方向轉換路徑 25之本體部45。另一方面，末端件挪具備與R形件— 之凸緣部44重合的凸緣部45、以及與該凸緣部45形成 為個整體且形成有方向轉換路徑25之本體部46。 對唇部之基部及前端部進行說明。圖14表示端部件2牝 之立體圖，圖15表示R形件2化之立體圖。唇部“具備 船底形掏取部42之底部側的基部43a、以及前端側之前 ^。卩43b。基。卩43a之内周面並不相對於方向轉換路徑& 之内周面而傾斜。另一方面，前端部43b之内周面並不相 對於方向轉換珞徑25之内周面而傾斜。 以下說明船底形掏取部及唇部之詳細構造。圖16表示 除去唇部43之船底形掏取部42，圖中（A)表示自螺桿之 312XP/發明說明書(補件)/95-09/95118200 17 向觀察到的船底形掬取部42，圖中⑻表示自螺浐 42之#至1之船底形掏取部42，圖中⑹表示船底形掏取^ 螺^見w與滾珠掏取量t的關係。如圖中⑴所示，= 形：為圓=向的船底形掏取部42之槽41的形狀 战為S)弧狀。槽41之曲率半徑 =滾動槽一滚珠23之執道中心線4?二^ 且略微大於螺桿21之外徑仙的曲率半徑们。繼 仞、“圖中(β)所示’槽21之寬度朝向方向轉換路徑之内 侧逐漸變窄。 < 円 動：：圖16 ’說明船底形掏取部42自螺桿21的滾珠滾 2 2la開始掏取滾珠23之掏取點。如圖中⑴所示，將 2 23於滾珠滚動槽⑴中滾動時，船底形掏取部η之 9 1上的滾珠23之行進方向的尺寸設為X。只要滾珠23 滚動於滾珠滾動槽21a上，則該尺寸χ始終為固定。繼之， ^滾珠23為球形，故當槽41之寬度尺寸y小於該尺寸X 時，將開始掏取滾珠23。亦即，船底形掏取部42之槽41 =寬度y小於尺寸x之位置將成為掏取點。該例中因3 W _ X，故寬度為y 1之位置成為掏取點。 若滾珠移動至掏取點，則藉由船底形掏取部42掏取滾 動於滾珠滾動槽21a上之滾珠23。若超過掏取點，則如、 圖中⑻所示，槽寬y以yl〜y26之方式逐漸變窄。如圖 中（C)所示’若槽寬y之尺寸變窄，則相應地滾珠以u〜 t26之大小上升。圖令（A)表示滾珠23上升時滾珠23之 ’令心線軌跡S。滚珠23通過掏取點後，相對於方向轉換 312XP/發明說明書(補件)/95·〇9/95118200 路抱2 5之中心線2 5 a + 約為5度。、 特疋角度T被掬取。該角度τ 圖表示設置有辰邱 圖。卷部43之前端;Λ之船底形掬取部42的剖視 部42 c較掬取點ρ更後退至船底形掏取 對於則。繼而，唇部43之基部43a内周面並未相 W端換路從25之内周面而傾斜’而與其相對，唇 内周面’則相對於方向轉換路徑25之内 二f珠=广以角度ά向外側傾斜。該傾斜角度5設為 到達掏取點Ρ時(此時’滾珠23進入螺桿以之軸 =向）’船底形掏取部42及上述唇部43之兩者可與滚 3接觸。故而’船底形掏取部42及唇部4 之槽41的2點，以及辱部43之前端部二 點合计3點掬取滾珠23較為理想。於此，唇部43應以 面接受滚珠23而並非以點。因此，當由船底形掏取部 掏取滾珠23時，滾珠23對船底形掏取部42所施加之力 將分散至唇部43中，故可減少船底形掏取部42之摩耗。 即便於晃動之滾珠23自船底形掏取部42進人滾珠滚動槽 21a曰時，亦由於滾珠23將沿著前端部43b之推拔面進二 螺桿21之軸線方向，故可防止船底形掏取部u摩耗。 此處，即便在掏取點P,滾珠23最初並未以掏取部“ 及唇部43之三點接觸，掬取部42亦將略微產生容許範圍 内之摩耗，移動掬取點p ,而使滾珠23以掏取部42及辰 部43之三點開始相碰。自最初開始以三點相碰較為理 想，但考慮到現實性設計或加工誤差之觀點，亦存在如此 312XP/發明說明書(補件)/95·〇9/95丨】82〇〇 1351476 情形。 唇部43之前端43c(詳細而言前端部43b之更前端43c) •以微小之曲率半徑R例如R0.2取去角。有時，與滾珠23 :不同直徑的較小直徑之分隔件24會衝擊唇部43之前端 43c。可藉由此去角，而防止分隔件24卡在唇部43之吁 端43c上。 ^ 另一方面，如上所述’唇部43之基部43a並不相對於 籲方向轉換路徑25之内周面傾斜，而是維持其直線狀態。 其目的在於：由唇部43之基部43a約束滾珠23，並抑制 朝向滚珠滾動槽21a移動之滾珠23出現晃動。如圖16(a) 所示，透過船底形掏取部42，滾珠23以約5度之傾斜角 度被掏取。故而，若設定基部43&之傾斜角度不滿5度， 則可使滚珠23與基部43a接觸。 圖18及圖19表示使唇部43内周面自基部43a直至前 糕邛43b之整體成為直線之示例。對如此之唇部的形 _狀進行測試性製造•實驗，綠實可減少滾珠23之晃動量: 然而，會導致在以船底形掏取部42掏取滾珠前，先由辰 部43掏取滾珠，故於唇部43之薄壁部分48會產生缺口。 其原因在於，滾珠23會與唇部43之薄壁部分“碰撞。 亦即，其原因在於，滚珠23自執道49偏離，並通過靠近 • 唇部43之軌道50。 ’ 為解決該唇部43之缺口問顳，向〇η α 』哺’如圖20所不，將薄壁部 为以斜線所表示之形狀除去。亦p ^ A no ^ 亦即，假定滾珠23通過最 Λ近唇部43之軌道50的愔报 ^ Α θ也’則自唇部43之前端43d 312XP/發明說明書(補件)/95-09/95118200 2〇 拉出垂線（1)，並描繪出以垂線（1)為中心位置且與唇部 43之則端43d連接的滾珠23。於該滾珠在末端構件 • 28内部之位置拉出垂線（2)。畫出垂線⑵與末端構件^ •之内側R，亦即船底形揭取部之槽41相接之圓（1)(根據 滚珠直徑決定圓⑴之直徑），並畫出連㈣⑴與唇部43 之前端43d的線段（3)，而除去斜線部。將唇部“之基部 43a切成圓弧狀，其目的在於緩解滾珠23碰撞基部4% 春時所產，生之應力集中。再者，該圖中可觀察到兩個唇部 43之薄壁部分48，其原因在於唇部43以引導角傾斜。除 去作業例如可藉由端銑刀加工而進行。 藉由如上般處理，可避免滾珠23通過最靠近唇部之執 道50時滾珠23對薄壁部分48之碰撞。並且，藉由除去 薄壁部分48 ’而獲得剩餘部分較大之厚度，故亦可提高 唇部43之強度。再者，若使唇部43自基部恤直至前端 43d之整體成為直線，則即便除去斜合 ·_之前端43d的缺口問題。故最终如圖17:;存= 部43之前端部43b的内周面為推拔面。圖21表示最終唇 部43之前視形狀。 β 圖22表示本發明第2實施形態之運動導引裝置。該運 動導引裝置中應用有與上述滾珠螺桿之船底形掏取部U 及唇部43相同的技術思想。運動導y裳置係於床台或鞍 台等固^部上導5丨1作台等移動體者，並具備執道鐵軌 5卜其用作配設於固定部上並沿著長度方向形成有滾珠滾 動槽51a之軌道構件；滑動構件52，其形成包含與執道 312XP/發明說明書(補件)/95-09/95118200 21 鐵軌51之滾珠滾動 上；多個滚珠，並等容η如地組袁於該軌道鐵執5i 與滑動構件52之負㈣珠軌51之滾珠滚動槽… 等插入於多個之間；多個分隔件，其The inner side of =... is provided with a lip portion 43 projecting into the ball rolling groove 21a of the screw 21. The end member member 28 shown in Fig. 13 is divided into two pieces of the R-shaped member (10) on the inner circumference side and the end piece bottom-bottom-shaped drawing portion 42 and the lip portion on the outer peripheral side along the direction line 2 5 . Also divided into two equal parts, the r-shaped member 28a includes a flange member attached to the end surface of the nut body 29, and a body portion 45 formed integrally with the flange portion 44 and having a direction changing path 25. On the other hand, the end piece has a flange portion 45 that overlaps with the flange portion 44 of the R-shaped member, and a body portion 46 that is formed integrally with the flange portion 45 and that has the direction changing path 25. The base portion and the front end portion of the portion will be described. Fig. 14 is a perspective view showing the end member 2A, and Fig. 15 is a perspective view showing the R-shaped member 2. The lip portion "provides the base portion 43a on the bottom side of the ship bottom shape scooping portion 42 and the front end side. Before ^.卩 43b. base. The inner circumferential surface of the crucible 43a is not inclined with respect to the inner circumferential surface of the direction changing path & On the other hand, the inner circumferential surface of the distal end portion 43b is not inclined with respect to the inner circumferential surface of the direction changing diameter 25. The detailed structure of the bottom shape capturing portion and the lip portion will be described below. Fig. 16 shows the bottom shape extraction portion 42 from which the lip portion 43 is removed, and Fig. 16(A) shows the bottom shape extraction portion 42 observed from the screw 312XP/invention specification (supplement)/95-09/95118200 17 . In the figure, (8) shows the ship bottom shape extracting portion 42 from #1 to 1 of the screw 42, and Fig. 6(6) shows the relationship between the ship bottom shape drawing screw and the ball picking amount t. As shown in (1) of the figure, the shape of the groove 41 of the ship bottom shape scooping portion 42 which is a circle=direction is S) arc-shaped. The radius of curvature of the groove 41 = the radius of curvature of the rolling groove-ball center line 4?2 and slightly larger than the radius of curvature of the outer diameter of the screw 21. In the following, "the width of the groove 21 shown in the figure (β) is gradually narrowed toward the inner side of the direction changing path. < 円: Figure 16' illustrates the ball-shaped drawing portion 42 from the screw 21 of the screw 21 2 2la The picking point of the ball 23 is started. As shown in (1), when the 2 23 is rolled in the ball rolling groove (1), the size of the traveling direction of the ball 23 on the ship bottom shape capturing portion η is set to X. As long as the ball 23 rolls on the ball rolling groove 21a, the size χ is always fixed. Then, the ball 23 is spherical, so when the width dimension y of the groove 41 is smaller than the size X, the ball is started to be drawn. 23. That is, the groove 41 of the bottom shape capturing portion 42 = the position where the width y is smaller than the size x will become the extraction point. In this example, since 3 W _ X, the position with the width y 1 becomes the extraction point. When the ball moves to the pick-up point, the ball 23 that is rolled on the ball rolling groove 21a is taken up by the bottom-shaped scooping portion 42. If the pick-up point is exceeded, as shown in (8), the groove width y is yl~ The method of y26 is gradually narrowed. As shown in (C) of the figure, if the size of the groove width y is narrowed, the ball is raised by the size of u~t26. (A) shows the 'heart line trajectory S' of the ball 23 when the ball 23 is raised. After the ball 23 passes the plucking point, the 312XP/invention specification (supplement)/95·〇9/95118200 road is held 2 5 The center line 2 5 a + is about 5 degrees. The characteristic angle T is extracted. The angle τ is a view showing the front view of the roll portion 43. The cross-sectional portion 42 of the bottom shape of the bow portion 42 c is retracted to the bottom shape of the bottom of the bottom portion of the bottom portion 43a of the lip portion 43a. Then, the inner peripheral surface of the base portion 43a of the lip portion 43 is not inclined at the W end end and is inclined from the inner peripheral surface of 25, and the inner circumference of the lip is opposed thereto. The surface 'is opposite to the direction conversion path 25 by two f beads = wide angle ά to the outside. This inclination angle 5 is set to reach the extraction point ( (in this case, 'the ball 23 enters the screw with the axis = direction') Both the bottom shape-picking portion 42 and the lip portion 43 are in contact with the roller 3. Therefore, the two points of the bottom of the boat-shaped scooping portion 42 and the lip portion 4, and the two points at the front end of the shame portion 43 are 3 It is preferable to pick up the ball 23. Here, the lip portion 43 should receive the ball 23 in a face instead of a point. Therefore, when the ball 23 is picked up by the bottom of the ship, the ball 23 is used. The force exerted by the bottom shape capturing portion 42 is dispersed into the lip portion 43, so that the wear of the bottom shape capturing portion 42 can be reduced. That is, the ball 23 for swaying is introduced into the ball rolling groove 21a from the bottom shape capturing portion 42. In the case of the crucible 23, since the ball 23 is pushed into the axial direction of the second screw 21 along the push-out surface of the front end portion 43b, it is possible to prevent the bottom of the boat bottom portion from being worn. Here, even at the point P, the ball 23 is initially When the picking portion "and the three points of the lip portion 43 are not in contact, the picking portion 42 will slightly generate the wear within the allowable range, and the picking point p is moved, so that the ball 23 is the picking portion 42 and the third portion 43 The dots start to touch each other. It is more desirable to touch three points from the beginning, but considering the realistic design or processing error, there is also the case of 312XP/Inventive Manual (supplement)/95·〇9/95丨82〇〇 1351476. The front end 43c of the lip portion 43 (more specifically, the front end portion 43c of the front end portion 43b) • The angle is taken with a slight radius of curvature R such as R0.2. Sometimes, with the ball 23: a smaller diameter spacer 24 of a different diameter will impact the front end 43c of the lip 43. By this, the partitioning member 24 can be prevented from being caught on the calling end 43c of the lip portion 43. On the other hand, as described above, the base portion 43a of the lip portion 43 is not inclined with respect to the inner peripheral surface of the direction-direction switching path 25, but maintains its straight state. The purpose is to restrain the balls 23 by the base portion 43a of the lip portion 43, and to suppress the occurrence of rattling of the balls 23 moving toward the ball rolling grooves 21a. As shown in Fig. 16 (a), the ball 23 is drawn through the ship bottom shape scooping portion 42 at an inclination angle of about 5 degrees. Therefore, if the inclination angle of the base portion 43 & is set to less than 5 degrees, the ball 23 can be brought into contact with the base portion 43a. Figs. 18 and 19 show an example in which the entire inner peripheral surface of the lip portion 43 is straight from the base portion 43a to the front cake 43b. For the test manufacturing and experiment of the shape of such a lip, the greening can reduce the amount of sway of the ball 23: However, it may result in the drawing of the ball by the bottom portion 43 before the ball is taken from the bottom portion 41 The balls are so as to form a gap in the thin portion 48 of the lip portion 43. The reason for this is that the ball 23 "collides with the thin-walled portion of the lip portion 43. That is, the reason is that the ball 23 is deviated from the obstruction 49 and passes through the rail 50 close to the lip portion 43. 'To solve the lip portion The gap of 43 is 颞, and the 〇η α 』 ” is not shown in Fig. 20, the thin wall portion is removed by the shape indicated by the oblique line. Also p ^ A no ^, that is, the ball 23 is assumed to pass the closest lip The trajectory of the track 50 of the 43 ^ θ also 'from the lip 43 front end 43d 312XP / invention manual (supplement) / 95-09/95118200 2 〇 pull out the vertical line (1), and draw a vertical line (1 a ball 23 that is centered and connected to the end 43d of the lip portion 43. The vertical line (2) is drawn at the position of the ball inside the end member 28. The vertical line (2) and the inner side of the end member ^ are also drawn. That is, the circle (1) where the groove 41 of the bottom portion of the ship bottom portion meets (the diameter of the circle (1) is determined according to the diameter of the ball), and the line segment (3) connecting the (4) (1) and the front end 43d of the lip portion 43 is drawn, and the oblique line portion is removed. The base portion 43a of the lip portion is cut into an arc shape, and the purpose thereof is to alleviate the stress concentration when the ball 23 collides with the base portion at 4% spring. Further, the thin wall portion 48 of the two lips 43 can be observed in the figure because the lip portion 43 is inclined at the guiding angle. The removal operation can be performed, for example, by machining with an end mill. By the above treatment, it is possible to avoid the collision of the balls 23 with the thin-walled portion 48 when the balls 23 pass the handle 50 closest to the lips. Further, by removing the thin portion 48' to obtain a larger thickness of the remaining portion, the strength of the lip portion 43 can be increased. Further, if the entire lip portion 43 is straight from the base shirt to the front end 43d, the problem of the notch of the oblique front end 43d is removed. Therefore, as shown in Fig. 17; the inner peripheral surface of the front end portion 43b of the storage portion 43 is a push-out surface. Figure 21 shows the forward shape of the final lip 43. Fig. 22 shows a motion guiding device according to a second embodiment of the present invention. The same technical idea as that of the above-described ball screw-shaped scooping portion U and lip portion 43 of the ball screw is applied to the motion guiding device. The movement guide y skirt is attached to a moving body such as a bed or a saddle table, and a moving body such as a platform, and has a railroad track 5, which is disposed on the fixing portion and formed along the length direction. a track member having a ball rolling groove 51a; a sliding member 52 formed to include a ball rolling with the track 312XP/invention specification (supplement)/95-09/95118200 21 rail 51; a plurality of balls, and an equal volume η The ground group Yuan is inserted between the rails of the rail iron 5i and the negative (four) bead rails 51 of the sliding member 52, etc.; a plurality of partitions,
滾珠及分隔件進行循環。構件53、53,其等用於使 圖23及圖24表亍;^ /lL 之立體圖，圖2λ:=^ 55的剖視圖。循環構構件53之方向轉換路徑 %與滾珠滚動路# &成有連接滚珠返迴路徑 周導引部58,並於滑==轉換路徑55外周的外 路徑55内周之#& 上，形成有構成方向轉換 m狭狀内周導引部59。 如圖2 3所示，於循環播 取部6卜1且有朝t : 3之下部，形成有船底形掏 之槽。繼之、/以換路徑内側而寬度逐漸變窄 道鐵執51之滾輕動样^部61之槽兩側環抱滾動於軌 备，、動槽51a上的滾珠23，並且將並笙的 取到方向轉換路徑55内 I、專掏 61之槽形成為較方向轉換路二4所：，船底形掏取部 道鐵軌⑴則。船底形更靠近執 軌51之滾珠滚動槽51a內的辰中6又置有犬出至軌道鐵 取部61自執道鐵執51的、二部62。繼而’於船底形掏 23接觸。此情形與上述二:唇部:2之兩者與滾珠 312XP/發明說明書(補件)/95侧51182〇〇 弟1實轭形態之滾珠螺桿相同。 22 XJ51476 =者’本發明並非僅限於上述實施 發明思想之範圍内可進行各種敌鍵μ文於未改變本 態中，於唇部之Α部及if 於上述實施形 度出規敌键土 #及别知部之内周面的分界線上傾斜角 :叫，但僅須考慮以3點掏取滾 及則端部之内周面以相等負声 ^ 於#丰批._ 角又傾斜。又，本發明亦可適用 明可t入有分隔件之僅有滾珠的滾珠螺桿。進而，本發 s切珠糾，㈣該情料目程管既可 句金屬製，亦可為樹脂製。 (實施例） 邻本者以如上所揭示之方式製造船底形掏取部及唇 Μ信氣試使滾珠循環。其結果，嘗試使滾珠螺桿以 部及辰/ 4之高速旋轉移動5〇0 km左右，船底形掏取 :及4並未產生目視可觀察到之摩耗。並且’確認到於 D取點掏取滾珠後，其通過預期之理想軌道。 本說明書係根據簡年5月24曰申請之曰本專利特願 2005 — 151471。其内容全部包含於此。 【圖式簡單說明】 圖1係表示習知之滾珠螺桿的循環構件（回程管）之立 體圖。 圖2係表示設置有習知之船底形掏取部的循環構件（回 程管）之立體圖。 圖3係表示插入於滾珠間之分隔件卡入船底形掏取部 中的示例之前視圖。 圖4係表示設置有習知之分隔件掏取部的船底形掏取 312XP/發明說明書(補件)/95-09/95118200 23 部之剖視圖。 點圖圖5中之猶環構件的剖視圖(圖中⑷表示掏^ )表不滾珠返回滾動槽之狀態）。 亍二广6 表不船底形掏取部之摩耗狀況的圖（圖中（A )表 部之整體圖，圖中⑻表示⑴之放大圖)。 =二、發明第1實施形態之滾珠螺桿的剖視圖。 係沿著螺帽本體之軸線方向的剖視圖。 =9係、表示對末端構件之螺帽本體加 分解立體圖。 係表示滾珠軌道之圖（圖中⑴表示自螺桿轴線方 衰珠執道之中心線，圖中⑻表示自螺桿側面 硯察到的滾珠轨道之令心線）。 係表示滾珠掏取方向之圖（圖中（Α)表示自螺桿轴 而。觀察到的滾珠之掏取方向’圖中⑻表示自螺 面觀察到的滾珠之掏取方向）。 圖12係末端構件之立體圖。 圖13係末端構件之分解立體圖。 圖14係末端件之立體圖。 圖15係R形件之立體圖。 圖16係表示除去唇部後的船底形掏取部之圖（圖中 表不自螺桿軸線方向觀察到之船底形掏取部，圖中（^)表 不自螺桿側面觀察到之船底形掏取部，圖中⑹表示船底 形掏取部之槽寬與滾珠掏取量的關係）。 圖17係設置有唇部之船底形掏取部的剖視圖。 312ΧΡ/發明說明書(補件)/95-09/95118200 24 圖]8係矣一 (自螺桿軸線方向觀窣：内周面變直之船底形掏取部的圖 水乃问硯察到之狀態）〇 19係表示使唇部的 體圖。 月面餸直之船底形掬取部的立 圖20係表示唇部之除去部分 察到之狀態）。 （自螺桿軸線方向觀 圖21係最終之唇部的前視圖。 圖22係表示本發明第2营姑带自 體圖。 弟貫施形_之運動導引裝置的立 圖2 3係循環構件之立體圖。 问^诹倨碌構件沿著方向轉換路徑 【主要元件符號說明】 1 、 3 、 53 循環構件 2 、 43 、 62 唇部 4 、 42 、 61 船底形掏取部 4a 底部 5 > 23 滾珠 5a 後方滾珠 6、24 分隔件 7 分隔件掏取部 8 ' 9 内周面 10 掏取點 11 循環路徑 21 螺桿 圖 312XP/發明說明書(補件)/95-09/95118200 25 1351476The balls and dividers circulate. The members 53, 53 and the like are used for making a perspective view of Fig. 23 and Fig. 24; Fig. 2 λ: = 55. The direction change path % of the circulation member 53 and the ball rolling path # & are connected to the ball return path circumference guide portion 58 and on the #& of the outer circumference 55 of the outer circumference of the slip == conversion path 55 A narrow inner peripheral guiding portion 59 is formed to constitute a direction change m. As shown in Fig. 23, a groove having a ship bottom shape is formed in the circulation portion 6 and having a lower portion toward t: 3. Then, / the width of the inside of the path is gradually narrowed. The roller of the iron plate 51 is lightly moved. The sides of the groove of the portion 61 are rolled around the rail, and the balls 23 on the movable groove 51a are taken. In the direction change path 55, the groove of the I and the special 61 is formed as the direction change path 2: the ship bottom shape is the rail track (1). The bottom of the ship is closer to the middle of the ball rolling groove 51a of the rail 51, and the dog is taken out to the rail iron taking portion 61. Then 'contacted at the bottom of the ship. This case is the same as the above two: lip: 2 is the same as the ball screw of the ball 312XP / invention specification (supplement) / 95 side 51182 1 1 yoke form. 22 XJ51476 = 'The invention is not limited to the scope of the above-mentioned embodiments of the invention, and various enemy keys can be used in the unchanging state, in the crotch of the lip and if the above-mentioned implementation form the rule of the enemy bond # and Do not know the inclination angle on the boundary line of the inner circumference of the part: call, but only need to consider the 3 points to draw the roll and the inner circumference of the end part to equal negative sounds ^ #丰批._ The angle is inclined. Further, the present invention is also applicable to a ball screw having only a ball into which a spacer can be inserted. Further, the present invention is scuttled, and (4) the conditional tube can be made of either a metal or a resin. (Embodiment) The neighboring person manufactures the bottom shape of the bottom of the boat and the lip of the lip to test the ball circulation in the manner disclosed above. As a result, an attempt was made to rotate the ball screw at a high speed of about 〇0 km at a speed of about 〇0 km, and the bottom of the ship was drawn: and 4 did not produce a visually observable wear. And 'confirmed that after D takes the ball, it passes the expected ideal orbit. This manual is based on the patent application 2005-151471 of May 24th. Its contents are all included here. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a circulation member (return pipe) of a conventional ball screw. Fig. 2 is a perspective view showing a circulation member (return pipe) provided with a conventional ship bottom shape scooping portion. Fig. 3 is a front elevational view showing an example in which a partition member inserted between the balls is caught in the bottom shape of the ship. Fig. 4 is a cross-sectional view showing a portion of a bottom shape extraction 312XP/invention specification (supplement)/95-09/95118200 23 provided with a conventional separator extraction portion. A cross-sectional view of the quarius ring member in Fig. 5 (the figure (4) indicates 掏^) indicates that the ball does not return to the state of the rolling groove).亍二广6 The figure showing the wear condition of the bottom shape of the ship (the overall view of the table in (A) in the figure, and (8) in the figure shows the enlarged view of (1). = 2 is a cross-sectional view of the ball screw of the first embodiment of the invention. A cross-sectional view along the axial direction of the nut body. The =9 series indicates an exploded perspective view of the nut body of the end member. It is a diagram showing the ball track (the figure (1) shows the center line from the screw axis, and the figure (8) shows the ball line of the ball track observed from the side of the screw). The figure indicates the direction in which the ball is drawn (in the figure, (Α) indicates the direction of the ball from the screw axis. (8) indicates the direction in which the ball is viewed from the screw surface). Figure 12 is a perspective view of the end member. Figure 13 is an exploded perspective view of the end member. Figure 14 is a perspective view of the end piece. Figure 15 is a perspective view of an R-shaped member. Figure 16 is a view showing the bottom shape of the ship after removing the lip (the bottom of the ship is not seen from the direction of the screw axis, and the figure (^) is not seen from the side of the screw. Take the part, (6) in the figure shows the relationship between the groove width of the bottom shape of the ship and the amount of ball picking). Figure 17 is a cross-sectional view of a boat-shaped scooping portion provided with a lip. 312 ΧΡ / invention manual (supplement) / 95-09/95118200 24 Figure] 8 system 矣 one (viewing from the direction of the screw axis: the water in the bottom of the ship's bottom is straightened) 〇19 is a body diagram showing the lip. The vertical view of the bottom of the ship is shown in Fig. 20, which shows the state in which the removed portion of the lip is observed. Figure 21 is a front view of the final lip of the present invention. Figure 22 is a view showing the second sacred belt of the present invention. Figure 2 is a vertical view of the motion guiding device. Stereoscopic diagram. Questioning the path of the member along the direction [Description of the main components] 1 , 3 , 53 Cycle components 2 , 43 , 62 Lips 4 , 42 , 61 Bottom shape extraction 4a Bottom 5 > 23 Ball 5a Rear Ball 6, 24 Separator 7 Separator Draw 8 ' 9 Inner Peripheral Surface 10 Draw Point 11 Cycle Path 21 Screw Diagram 312XP / Invention Manual (Replenishment) / 95-09/95118200 25 1351476
21a 、 51a 滾珠滾動槽 21b 外徑 21c 軸線 22 螺帽 22a 負載滾珠滚動槽 25、55 方向轉換路徑（循環路徑） 25a 、 63 中心線 26 滚珠返迴路徑（循環路徑） 27 管體（循環構件） 28 末端構件（循環構件） 28a R形件 28b 末端件 29 螺帽本體 30a 通孔 30b 凹部 31 螺栓 32 端面 33 環封構件 34 遮罩 41 船底形掏取部之槽 43a 基部 43b 前端部（推拔面） 43c 、 43d 前端 44 凸緣部 312XP/發明說明書(補件)/95-09/95118200 26 135147621a, 51a Ball rolling groove 21b Outer diameter 21c Axis 22 Nut 22a Load ball rolling groove 25, 55 Directional switching path (circulation path) 25a, 63 Center line 26 Ball return path (circulation path) 27 Tube (circular member) 28 End member (circulation member) 28a R-shaped member 28b End member 29 Nut body 30a Through hole 30b Recessed portion 31 Bolt 32 End surface 33 Ring seal member 34 Mask 41 Slot-shaped suction portion groove 43a Base portion 43b Front end portion Pulling face) 43c, 43d front end 44 flange part 312XP / invention manual (supplement) / 95-09/95118200 26 1351476
45、46 47 48 49、50 51 52 56 57 58 59 A B x45, 46 47 48 49, 50 51 52 56 57 58 59 A B x
y、yl 〜y26、tl 〜t26 PY, yl ~ y26, tl ~ t26 P
R1 〜R3 S a β j ' δ 本體部 軌道中心線 薄壁部分 執道 軌道鐵執（軌道構件） 滑動構件 滾珠返迴路徑 滾珠滚動路徑 外周導引部 内軸導引部 負載滚動路徑 循環路徑 尺寸 寬度 掏取點 曲率半徑 中心線軌道 傾斜角度 引導角 角度 312ΧΡ/發明說明書(補件)/95-09/951182〇0 27R1 to R3 S a β j ' δ Main body track center line thin wall part road track iron (track member) Sliding member ball return path ball rolling path outer circumference guide inner shaft guide load rolling path circulation path Dimensional Width Snap Point Curvature Radius Center Line Track Tilt Angle Guide Angle 312ΧΡ/Invention Manual (Supplement)/95-09/951182〇0 27