jj392〇3l 五、新型說明： 【新型所屬之技術領域】 本創作係關於一種直線運動模組。 【先前技術】 在直線運動模組中，為使滑座能透過有限數目的滾珠 持縯於線性執道體前進，一般是藉由設置滾珠迴流通道的 方式來達成。利用滾珠迴流通道，滾珠可在每次滑座通過 後，再重新返回線性執道體及滑座之間，續行其功能。 圖1為一種習知線性運動模組之剖面圖。請參考圖i 所示，習知線性運動模組！包含一線性軌道體u、一滑座 12及複數滾珠Π。線性軌道體n設置有執道槽u〗，而 滑座内_設置有内迴流槽121，兩者共隨成滾珠運 打的内迴流通道R。另外，滑座12設置有外迴流通道US, 滾珠依序通過迴流導引彎道（圖未示）及外迴流通道122 後，得以重新返回線性軌道體u及滑座12之間。 為在剛性極佳的滑座12設置外迴流通道122，習知技 術是採鑽孔加工的方式。利用滑座12的—端面為基準面， 由另一端面施行鑽孔以貫穿整個滑座12,或以滑座，12的 兩端面交互為基準面，實施鑽孔並連通管道，最後形成外 迴流通道122。 口刊用習知技術製Jj392〇3l V. New description: [New technical field] This creation is about a linear motion module. [Prior Art] In the linear motion module, in order to enable the slider to advance through the linear obstruction body through a limited number of balls, it is generally achieved by providing a ball return passage. With the ball return channel, the ball can be returned to the linear actuator and the slider after each slide passes, continuing its function. 1 is a cross-sectional view of a conventional linear motion module. Please refer to Figure i, the known linear motion module! It comprises a linear orbital body u, a sliding seat 12 and a plurality of ball bearings. The linear orbital body n is provided with an obstruction groove u, and the inner portion of the carriage is provided with an inner recirculation groove 121, which together serve as an inner return passage R of the ball. In addition, the sliding seat 12 is provided with an outer return passage US, and the balls are returned to the linear rail body u and the sliding seat 12 by sequentially guiding the curved corners (not shown) and the outer return passage 122. In order to provide an outer return passage 122 in the extremely rigid slide 12, the prior art is a method of drilling. The end surface of the sliding seat 12 is used as a reference surface, and the other end surface is drilled to penetrate the entire sliding seat 12, or the two ends of the sliding seat 12 are alternately used as a reference surface, drilling is performed and the pipeline is connected, and finally an external recirculation is formed. Channel 122. Oral publication
成外迴流通道尚存在部 問H，鑽孔力^容易在外迴流通道兩端形成錐廣 使得管徑無法統-’影響滾珠循料料的穩定性。 4 M392031 者，由於鑽孔加工無法由單一端面加工完成，難以避免會 在通道面上形成斷差，影響外迴流通道的平滑程度。上述 問題都會導致直線運動模組在作動時發出較大噪音，以及 造成滾珠在高速滾動的過程中，產生停頓或失去穩定，甚 至造成元件損壞。 另外，雖然已有部分技術針對上述問題進行改良，但 . 仍面臨實施困難、加工程序繁複或元件種類過多的障礙， 對於如何降低外迴流通道瑕疯對滚珠運動的影響還一直 未有隶佳的解決方式。 因此，如何改良並提供一種直線運動模組，其具有無 斷差的迴流通道，可提升作動時的穩定性、減低噪音及適 於高速運作，已成為重要課題之一。 【新型内容】 有鑑於上述課題，本創作之目的為提供一種直線運動 模組，其具有無錐度、無斷差的外迴流通道，可提升作動 • 時的穩定性、減低噪音及適於高速運作。此外，依據本創 ' 作之直線運動模組更可將自潤元件結合為外迴流通道的 ' 一部分，以自動供應潤滑物質的方式，加強滾珠運動的平 ' 順程度。更重要的是，本創作之直線運動模組同時可在内 迴流通道與迴流彎槽之接合處達成實質無斷差，進一步強 化上述優點。 本創作之另一目的為提供一種直線運動模組，其能利 用膠合或二次成型方式使滑座本體與迴流元件合而為 5 M392031 一，以減少多次組裝所增加的勞力、時間、費用，更可降 低元件結合時可能產生的誤差。 本創作之又一目的為提供一種直線運動模組，其具有 一體成型的端蓋及滾珠保持件，可有效減少直線運動模組 在未組裝前的元件數目，節省用料成本及加工步驟。 為達上述目的，依據本創作之一種直線運動模組包括 一線性軌道體、一滑座及複數滚珠。線性軌道體兩侧分別 設置至少一軌道槽。滑座滑設於線性軌道體，且包括一滑 座本體、至少四迴流元件及二端蓋。滑座本體内侧對應軌 道槽設置至少二内迴流槽，且内迴流槽與軌道槽共同構成 一内迴流通道。滑座本體兩側分別對應内迴流通道設置至 少一貫通滑座本體之迴流孔道。迴流元件分別設置於滑座 本體之二端面之兩側。各迴流元件分別具有至少一迴流管 部，容置於對應之迴流孔道。相對之二迴流管部連接而共 同構成一外迴流通道。端蓋分別設置於滑座本體之二端 面，且各端蓋分別設置至少二迴流導引槽。迴流導引槽對 應接合内迴流通道及外迴流通道。滚珠循環運動於内迴流 通道、其中之一迴流導引槽、外迴流通道及另一迴流導引 ，槽。 在本創作之一實施例中，其中相對之二迴流管部於連 接處分別具有對應之錐度，以藉由套設方式而共同構成外 迴流通道。 在本創作之一實施例中，相對之二迴流管部是一體成 型。在本實施例之另一態樣中，相對之二迴流管部則是以 M392031 膠合之方式連接。 在本創作之一實施例中，滑座更包括至少二自潤一 ^1別⑦置於迴流孔道，且相對之二迴流f部是透過自 潤凡件之連結而連接。其中，相對之二迴流管部是射 型於滑座本體’從而與自潤元件及滑座本體結合成 體，另外，也因此使得二迴流管部固定連結於自潤 二者共同組成外迴流通道。而在本實施例之另 ^間^之兩端分別具有錐度，以供相對之二迴流管二 °又，再共同組成外迴流通道。 一在本創作之一實施例中，各迴流元件分別更具有至少 T迴流-槽。迴流彎槽之—端連接迴流管部， =::共::成一迴流彎道，對應接合内迴流‘ 部，迴流彎:之另、—端之兩端分別具有1陷 77另_1 _有一凸出部，且迴流彎道 广部與凸出部之接合而對應接合内迴流通道。心 ，凹陷部與凸出部之連接處是實質無斷差。 在本創作之—實施财，滑座本體_ ^至少二滾珠保持件，用以限制滾珠相對於滑座本體^ 在本創作之一實施例令，各 珠保持部。滾珠保持部盘 ：：“有至〉、二滾 道上相、紅 ^知-疋一體成型，且平行迴流孔 件。並中土珠保持部連接而共同構成—滾珠保持 -滾珠保持部具有-凹部，以藉由凸部與二之接:而： 7 M392031 同構成一滾珠保持件。 承上所述，依據本創作之直線運動模組，藉由迴流元 件的設置，取代直接以迴流孔道作為外迴流通道，故能修 正加工產生的缺陷，使整體迴流通道的管徑更為一致。另 外，由於迴流元件的製成方式及連接關係更適於形成無斷 差的通道管壁，能有效降低直線運動模組的噪音，提高滚 珠運動的穩定性，當進一步與定位結構及/或自潤元件結合 應用時，更能提供定位及/或潤滑功能。再者，依據本創作 之直線運動模組，其相對的二迴流元件及/或端蓋與滾珠保 持部可以一體成型的方式形成，從而減少元件數目，節省 用料成本及加工步驟，更可以防止多次組裝產生的誤差。 與習知技術相較，本創作之直線運動模組，基於結構 設計，得以克服迴流通道中，，管徑存在錐度或通道表面粗 糙度等影響滚珠運行的不利因素，有助於降低直線運動模 組作動時產生的噪音，同時提高作動時的穩定性。此外， 在此結構中亦適於設置自潤元件，以藉由潤滑物質，降低 滾珠與滾珠、或滚珠與通道間的干涉。當本創作之直線運 動模組配合一體成型的製成方式時，不僅能減少獨立的元 件數目，使滑座内各構件結合為一整體，更可以促使迴流 通道各部分緊密貼合於滑座本體，以得到完整的支撐力， 避免滾珠運動造成管道震盪的現象。 【實施方式】 以下將參照相關圖式，說明依本創作實施例之一種直 M392031 線運動模組，其中相同的元件將以相同的元件符號加以說 明。 圖2為依據本創作之一種直線運動模組的示意圖，而 圖3為圖2所示之直線運動模組的分解圖。請同時參考圖 • 2及圖3所示，依據本創作之直線運動模組2包括一線性 軌道體21、一滑座22及複數滾珠23。線性執道體21兩 . 側分別設置至少一軌道槽211。滑座22滑設於線性軌道體 21，且包括一滑座本體221、至少四迴流元件222及二端 $ 蓋223。滑座本體221内侧對應軌道槽211設置至少二内 迴流槽224，且内迴流槽224與軌道槽211共同構成一内 迴流通道。滑座本體221兩侧分別對應内迴流通道設置至 少一貫通滑座本體之迴流孔道225。迴流元件222分別設 置於滑座本體221之二端面ES之兩側。各迴流元件222 分別具有至少一迴流管部226，容置於對應之迴流孔道 225。相對之二迴流管部226連接而共同構成一外迴流通 道。端蓋223分別設置於滑座本體221之二端面ES，且各 • 端蓋223分別設置至少二迴流導引槽227。迴流導引槽227 對應接合内迴流通道及外迴流通道。滾珠23循環運動於 ' 内迴流通道、其中之一迴流導引槽227、外迴流通道及另 一迴流導引槽227。 依據本創作之直線運動模組2,其線性執道體21兩側 可分別設置一條或複數條軌道槽211，而在本實施例中將 以線性軌道體21兩側分別設置兩條執道槽211之直線運 動模組2為例，說明本創作之技術特徵。當然，線性軌道 9 M392031 體21兩側亦可分別設置其他數目之軌道槽211，應用上並 無特別限制。 請同時參考圖3及圖4所示，滑座本體221内側對應 軌道槽211設置至少二内迴流槽224，内迴流槽224與軌 道槽211共同構成一内迴流通道，滑座本體221兩侧分別 對應内迴流通道設置至少一貫通滑座本體221之迴流孔道 225。在本實施例中，滑座本體221内側對應四條軌道槽 211而分別於左右設置兩條内迴流槽224，此四條内迴流 槽224與四條軌道槽211共同構成四條内迴流通道。另 外’滑座本體221的左右兩侧分別設置兩條貫通滑座本體 221之迴流孔道225，以對應四條内迴流通道。在本實施 例中，滑座本體221較佳為一鐵件、鋼件、或一金屬件， 而其内迴流槽224是由研磨加工法方式製作，以減少槽面 斷差及熱變形量。至於迴流孔道225則是以滑座本體221 的前後端面ES交互為基準面，於滑座本體221另一端面 ES的左右兩側實施鑽孔，最後沿滑座本體221長軸方向貫 通鑽孔，以形成迴流孔道225。 請參考圖4所示，迴流元件222是構成滾珠迴流通道 的一部份，各迴流元件222分別具有至少一迴流管部226， 作為滚珠23在滑座本體221内運行的執道。因此，兩兩 組合完成的迴流元件222，其迴流管部226可以取代迴流 孔道225，直接與滚珠23接觸，消除鑽孔造成迴流孔道 225通道面粗糙及/或熱處理變形的問題，提供較佳的迴流 通道。 10 M392031 請同時爹考圖4及圖5所不’在本貫施例中’四個迴 流元件222是分別設置於滑座本體221之前後二端面ES 的左右兩側，且各迴流元件222分別具有兩個迴流管部 226，分別容置於對應之迴流孔道225。 請參考圖5所示，在本實施例中，沿滑座本體221長 軸方向相對的二迴流管部226可在迴流孔道225中連接而 . 共同構成一外迴流通道。其中，相對的二迴流管部226於 連接處可分別具有互相對應之錐度T!及T2。詳細而言， ^ 錐度Τ!是可例如迴流管部2 2 6其中之一在連結的位置具有 相對較小的外管徑R。，且此外管徑R。是向迴流管部226 開口方向逐漸縮小，而使外管壁形成近似錐形（如圖4中 的錐度Τ!)。而另一迴流管部226則在連接處的管口具有 最大内管徑Ri，但以相反於迴流管部226開口的方向逐漸 縮小，而使内管壁形成倒錐形（如圖4中的錐度T2)。因 此，迴流管部226可以藉由錐度Ti及Τ2相互套設的方式 連結，且再輔以例如但不限於膠水或黏著物質將兩者膠合 • 或黏合，而共同構成外迴流通道。當然，上述僅為說明而 ' 舉的實例，其他可使相對之二迴流元件222連接的結構或 技術亦可使用，本創作在所不限。 此外，同樣請參考圖4所示，在本實施例中，各迴流 元件222分別更具有至少一迴流彎槽228。迴流彎槽228 之一端連接迴流管部226，且當端蓋223結合於滑座本體 221的端面ES上後，迴流彎槽228與迴流導引槽227共同 構成一迴流彎道。迴流彎道為一實質呈U型或馬蹄型的彎 11 M392031 管狀結構，兩端分別對應接合内迴流通道及外迴流通道， 以導引滚珠23平順地改變運行的方向。 其中，迴流管部226及迴流彎槽228較佳為利用射出 成型製成之一體成型的單一構件，且其材質以塑膠或樹脂 為佳。當然，迴流管部226及迴流彎槽228亦可以為獨立 製成的構件，而再連結組合。至於其他可達到相同功效之 材質及製程方式，例如金屬元件與研磨加工，亦可用於製 作迴流管部226及/或迴流彎槽228,應用上並無特別限制。 再者，在本創作之其他實施例中，為強化導引滚珠23 的能力，迴流導引槽227及/或迴流彎槽228可更包含複數 迴流導引件（圖中未示），其以合適的角度設置於迴流元 件222，降低改變運動路徑時對滚珠23產生的不利影響。 請同時參考圖5及圖6所示，各迴流元件222可藉由 扣合、卡合、黏合、鎖合、嵌合、或其組合的方式設置於 滑座本體221之二端面ES的兩侧，且是由滑座本體221 前後兩端面ES向中心的方向進行。在本實施例中，迴流 元件222與滑座本體221的連結是藉由卡合的方式達成。 詳細而言，内迴流槽224之兩端可分別具有一凹陷部 CC，各迴流元件222連結於滑座本體221之一側可分別對 應凹陷部CC而設置一凸出部CV，迴流元件222藉由凸出 部CV與凹陷部CC的連接而設置於滑座本體221之二端 面ES的兩侧（如圖6所示）。需特別說明的是，可互相配 合的凹陷部CC及凸出部CV還可同時提供定位功能，以 提高迴流元件222與滑座本體221組裝的精度。另外，又 12 M392031 由於射出成型的迴流元件222表面平滑且無變形問題，易 與研磨形成的内迴流槽224緊密配合，因此，請同時參考 圖5及圖7所示，在本實施例中，凹陷部CC與凸出部CV 之連接處是實質無斷差，換言之，滑座本體221與迴流元 件222之連接處是實質無斷差，而有助於提高滾珠23運 動的穩定性，減少噪音。然而，需注意的是，凹陷部CC 與凸出部CV的形狀及尺寸可以實際使用需要調整，不可 以本說明書所舉之實例限制解釋，且在本創作中所稱實質 $ 無斷差乃是涵蓋因加工、組裝精度或其他外在因素所造成 的些許誤差。 此外，迴流管部226亦可例如膠合或黏合於迴流孔道 225，以進一步強化迴流元件222與滑座本體221間的連 結，減少滾珠23運動時所造成整體結構的不安定性。 在此需特別說明的是，上述實施例是以迴流元件221 與滑座本體221分開形成、再組裝的製法進行說明，然而， 依據本創作設計的迴流元件222亦可以利用在滑座本體 • 221中射出成型的方式形成。在本創作之另一實施例中， " 可先將滑座本體221内插至模具中，而後以樹脂成型於模 ' 具中，使得對應的迴流元件222可以一體成型於滑座本體 221，同時亦與滑座本體221 —體結合，以減少直線運動 模組2的元件數目、組裝工時，從而具有降低勞力、時間、 費用的優勢。 請同時參考圖7及圖8所示，當迴流元件222設置於 滑座本體221後，可再將端蓋223利用扣合、卡合、黏合、 13 M392031 鎖合、嵌合或其組合的方式設置於滑座本體221的前後端 面ES，從而使端蓋223的迴流導引槽227與迴流元件222 的迴流彎槽228共同構成導引滾珠23的迴流彎道。另外， 在本實施例中，滑座本體221及端蓋23上更分別具有螺 孔Η，以從滑座本體221前、後侧以螺絲鎖合端蓋223及 滑座本體221，且同時夹置迴流元件222於其中，進一步 穩定迴流元件222與滑座本體221的連結。 依據本實施例之直線運動模組2的構型，其較佳應配 合三組滚珠保持件，分別位於滑座本體221内侧的上、中 及下側（依其位置可視為上滾珠保持件、中滾珠保持件及 下滾珠保持件）。請參考圖8所示，在本實施例中，各端 蓋223更可分別具有至少二滾珠保持部229，且較佳可分 別具有四滾珠保持部229。此四滾珠保持部229能在兩端 蓋223與滑座本體221連結後，藉由平行迴流孔道225的 二滾珠保持部229共同連接而組成一貫穿滑座本體221内 側的滾珠保持件。在本實施例中，各端蓋223之滾珠保持 部229可與端蓋223為一體射出成型的單一構件，亦可以 為分別獨立形成而再組裝結合的不同構件。 進一步而言，平行迴流孔道225上相對的二滚珠保持 部229其中之一較佳具有一凸部PJ，另一具有一凹部RC， 以藉由凸部PJ與凹部RC之接合而共同構成一滾珠保持 件。 此外，請同樣參考圖8所示，在本實施例中，滑座本 體221内侧對應執道槽211設置二滾珠保持件Β，且其位 14 M392031 置為同側之二内迴流槽224間並延伸達到與滑座本體221 之長軸相同長度。 進一步說明，若考量三組滾珠保持件的位置，由端蓋 223的滾珠保持部229所形成的滾珠保持件是為直線運動 模組2中的上、下滾珠保持件，有別設置於滑座本體221 之中滾珠保持件B。另外，就功能上而言，上滾珠保持件 _ 與中滾珠保持件B夾設於上方内迴流通道上下兩端，而中 滾珠保持件B又與下滾珠保持件夾設於下方内迴流通道上 | 下兩端，以保持滚珠23在滑座22與線性執道體21分離 時不致脫落。 據此，依據本創作之直線運動模組，可利用設置迴流 元件於迴流孔道中的方式，維持滾珠迴流通道之管徑的一 致，且同時降低通道表面的粗糙程度，形成實質無斷差的 運動環境，有助於降低直線運動模組作動時的噪音，以及 增加穩定度。另外，又由於迴流元件具備與滑座本體一體 結合的特性，故能減少元件數目，節省生產的勞力、時間、 • 費用。 ' 請參考圖3所示，在本實施例中，滑座22更包括四 條防塵件DPi及DP2，兩條防塵件DP2連結滑座本體221 的底側，而另兩條防塵件D5則夾詨於線性執道體21上 側及上滾珠保持件之間。防塵件DP2共同用於阻擋 塵埃或異物由線性執道體21及滑座本體221上下兩空隙 進入直線運動模組2内部。除此之外，同樣參考圖3所示， 在本實施例中，滑座22可更包括一前端蓋防塵件DP3以 15 M392031 及一後端蓋防塵件DP4,分別設置於端蓋223相對端面ES 之另一側，其功能亦是用於防止異物由滑座22前端或後 端侵入内部。 除上述實施例外，依據本創作之直線運動模組亦具有 另一種實施方式，且此實施方式著重於迴流元件及位於滑 座本體内之迴流通道的改變，故以下將針對此提供說明， 至於直線運動模組的其他部分大致與前述實施例相同，其 已詳述於上，於此不再贅述。 請同時參考圖9至圖11所示，滑座22’可更包括至少 二自潤元件SL。在本實施例中，滑座22’包括四個自潤元 件SL，分別對應設置於四條迴流孔道225。由於自潤元件 SL為迴流通道之一部分（如圖11所示，自潤元件SL的 内壁為滾珠迴流通道之内壁的一部份），且内設有儲存潤 滑油類、潤滑劑或潤滑物質的部件，故滾珠23通過自潤 元件SL時，可自動沾附潤滑油類、潤滑劑或潤滑物質， 以達到潤滑的目的。 請同時參考圖10及圖11所示，在本實施例中，相對 之二迴流管部226’是透過自潤元件SL之連結而連接。其 中，在組成直線運動模組2’時，可以例如先將自潤元件SL 設置於迴流孔道225中。其後，再將迴流元件222’設置於 滑座本體221之二端面ES的兩側，以使得迴流管部226’ 能與自潤元件SL連結。本實施例中的自潤元件SL之兩端 分別具有錐度T3，可供具有相對應錐度T4之相對之二迴 流管部226’套設，而共同組成外迴流通道。其中，自潤元 16 M392031 件SL的管徑在兩端開口4 管部226的内管經只、 1 ^具略大於迴流There is still a part of the external return channel, and the drilling force is easy to form a wide taper at both ends of the outer return channel, so that the pipe diameter cannot be unified -' affecting the stability of the ball-fed material. 4 M392031, because the drilling process can not be completed by a single end face, it is difficult to avoid the formation of a gap on the channel surface, affecting the smoothness of the external return channel. The above problems can cause the linear motion module to make a loud noise when it is actuated, and cause the ball to stop or lose stability during the high-speed rolling process, and even cause component damage. In addition, although some technologies have been improved to solve the above problems, they still face obstacles to implementation, complicated processing procedures, or excessive types of components. There has been no good effect on how to reduce the impact of external return channel madness on ball movement. The solution. Therefore, how to improve and provide a linear motion module, which has a backflow path without interruption, can improve stability during operation, reduce noise and be suitable for high-speed operation, and has become one of the important topics. [New content] In view of the above problems, the purpose of this creation is to provide a linear motion module with a taper-free, non-dropout external return channel for improved stability during operation, noise reduction and high speed operation. . In addition, according to the creation of the linear motion module, the self-lubricating element can be combined as part of the external return channel to enhance the smoothness of the ball movement by automatically supplying the lubricating material. More importantly, the linear motion module of the present invention can further achieve the above advantages by achieving a substantial non-interruption at the junction of the inner return channel and the return bend. Another object of the present invention is to provide a linear motion module capable of combining the slider body and the reflow element by means of gluing or overmolding to 5 M392031 one to reduce the labor, time and expense of multiple assembly. It can also reduce the errors that may occur when components are combined. Another object of the present invention is to provide a linear motion module having an integrally formed end cap and a ball retaining member, which can effectively reduce the number of components of the linear motion module before assembly, and save material cost and processing steps. To achieve the above object, a linear motion module according to the present invention includes a linear track body, a slider and a plurality of balls. At least one track groove is disposed on each side of the linear track body. The slider is slidably disposed on the linear rail body and includes a slider body, at least four reflow elements, and a two-end cover. At least two inner return grooves are disposed on the inner side of the slide body corresponding to the track grooves, and the inner return grooves and the track grooves together constitute an inner return passage. Both sides of the slider body are respectively disposed corresponding to the inner return passage to at least one return passage penetrating the slide body. The reflow elements are respectively disposed on both sides of the two end faces of the slider body. Each of the reflow elements has at least one return tube portion that is received in the corresponding return channel. The two return conduits are connected to form an external return passage. The end caps are respectively disposed on the two end faces of the slide body, and each of the end caps is respectively provided with at least two return guide grooves. The return guide groove corresponds to the inner return passage and the outer return passage. The ball circulates in the inner return passage, one of the return guide grooves, the outer return passage, and another return guide, groove. In an embodiment of the present invention, the opposite return tube portions respectively have corresponding tapers at the joints to collectively form an outer return passage. In one embodiment of the present invention, the opposing return tube portions are integrally formed. In another aspect of the embodiment, the opposite return tube portions are joined by M392031 glue. In one embodiment of the present invention, the slider further includes at least two self-lubricating ones, and the opposite ones are connected by a connection of the self-flowing parts. The two returning tube portions are formed on the slider body ′ so as to be combined with the self-lubricating element and the slider body. In addition, the two returning tube portions are fixedly coupled to the self-lubricating unit to form an external return channel. In the other embodiment, the two ends of the embodiment have a taper for the two opposite return tubes to form an external return channel. In one embodiment of the present invention, each of the reflow elements further has at least a T-return-slot. The back end of the recirculation bend is connected to the return pipe section, =:: total:: into a reflow curve, corresponding to the inner reflow portion of the joint, the reflow bend: the other end of the end has 1 trap 77 another _1 _ The protrusion and the joint of the wide portion of the return curve and the protrusion correspond to the inner return passage. The connection between the heart, the recess and the projection is substantially without a fault. In the present invention, the implementation of the money, the slider body _ ^ at least two ball holders for limiting the ball relative to the slider body ^ in one embodiment of the present invention, each bead retaining portion. Ball retaining disc:: "To", two races upper phase, red ^ know - 疋 integrally formed, and parallel return hole members. The middle bead retaining portions are connected to form a common structure - the ball retaining - the ball retaining portion has a - recess By the connection of the convex portion and the second: and: 7 M392031 constitutes a ball retaining member. According to the above, the linear motion module according to the present invention is replaced by the returning channel as a recirculation channel. The return channel can correct the defects caused by the processing, so that the diameter of the whole return channel is more uniform. In addition, since the reflow element is made in a manner and connection relationship, it is more suitable for forming a channel wall without a gap, which can effectively reduce the straight line. The noise of the motion module improves the stability of the ball movement, and when it is further combined with the positioning structure and/or the self-lubricating element, it can provide positioning and/or lubrication functions. Furthermore, according to the linear motion module of the present invention, The opposite two reflow elements and/or the end cap and the ball retaining portion can be integrally formed, thereby reducing the number of components, saving material cost and processing steps, and preventing The error caused by multiple assembly. Compared with the prior art, the linear motion module of the present invention overcomes the unfavorable factors affecting the running of the ball, such as the taper of the pipe diameter or the surface roughness of the channel, based on the structural design. It helps to reduce the noise generated when the linear motion module is actuated, and at the same time improves the stability during the operation. In addition, in this structure, it is also suitable to set the self-lubricating element to reduce the ball and the ball or the ball by lubricating the substance. Interference with the channel. When the linear motion module of the present invention is combined with the integrated molding method, not only the number of independent components can be reduced, but also the components in the sliding seat are combined into one whole, and the parts of the return channel can be made tight. It is attached to the slider body to obtain a complete supporting force, and avoids the phenomenon that the ball is oscillated due to the movement of the ball. [Embodiment] A straight M392031 line motion module according to the present embodiment will be described below with reference to the related drawings, wherein The same components will be described with the same component symbols. Figure 2 is a representation of a linear motion module according to the present invention. FIG. 3 is an exploded view of the linear motion module shown in FIG. 2. Referring to FIG. 2 and FIG. 3 simultaneously, the linear motion module 2 according to the present invention includes a linear track body 21 and a sliding seat. 22 and a plurality of balls 23. The linear body 21 is provided with at least one track groove 211. The slide block 22 is slidably disposed on the linear track body 21 and includes a slide body 221, at least four reflow elements 222 and two ends $ The cover 223. The inner side of the slide body 221 is provided with at least two inner return grooves 224, and the inner return groove 224 and the track groove 211 together form an inner return passage. The reflow elements 225 are respectively disposed on the two sides of the two end faces ES of the carriage body 221. Each of the reflow elements 222 has at least one return pipe portion 226 respectively received in the corresponding return hole 225. The two return conduit portions 226 are connected to form an outer return passage. The end caps 223 are respectively disposed on the two end faces ES of the slider body 221, and each of the end caps 223 is respectively provided with at least two reflow guiding grooves 227. The return guide groove 227 corresponds to the inner return passage and the outer return passage. The balls 23 circulate in the 'inner return passage, one of the return guide grooves 227, the outer return passage, and the other return guide groove 227. According to the linear motion module 2 of the present invention, one or a plurality of track grooves 211 may be respectively disposed on two sides of the linear arm body 21, and in the embodiment, two orbital grooves are respectively disposed on both sides of the linear track body 21. The linear motion module 2 of 211 is taken as an example to illustrate the technical features of the present creation. Of course, the linear track 9 M392031 body 21 can also be provided with other numbers of track grooves 211 on both sides, and there is no particular limitation on the application. As shown in FIG. 3 and FIG. 4 , at least two inner return grooves 224 are disposed on the inner side of the slide body 221 , and the inner return groove 224 and the track groove 211 together form an inner return channel, and the two sides of the slide body 221 respectively At least one return hole 225 penetrating the slide body 221 is disposed corresponding to the inner return passage. In this embodiment, the inner side of the carriage body 221 corresponds to the four track grooves 211, and two inner return grooves 224 are respectively disposed on the left and right sides. The four inner return grooves 224 and the four track grooves 211 together form four inner return passages. Further, two left and right sides of the carriage body 221 are respectively provided with two return holes 225 penetrating the carriage body 221 to correspond to the four inner return passages. In the present embodiment, the carriage body 221 is preferably an iron member, a steel member, or a metal member, and the inner recirculation groove 224 is formed by a grinding process to reduce the groove surface breakage and the amount of thermal deformation. As for the return hole 225, the front and rear end faces ES of the slide body 221 are alternately used as reference surfaces, and the left and right sides of the other end face ES of the slide body 221 are drilled, and finally the borehole is penetrated along the long axis direction of the slide body 221. To form a return orifice 225. Referring to FIG. 4, the reflow element 222 is a part of the ball return passage, and each of the reflow elements 222 has at least one return pipe portion 226 as an operation of the ball 23 in the carriage body 221. Therefore, the return element 222 of the two-two combination can be replaced by the return hole 225, and can directly contact the ball 23, thereby eliminating the problem that the hole of the return hole 225 is roughened and/or the heat treatment is deformed, and the better is provided. Return channel. 10 M392031 Please refer to FIG. 4 and FIG. 5 at the same time. In the present embodiment, the four reflow elements 222 are respectively disposed on the left and right sides of the front and rear end faces ES of the carriage body 221, and the reflow elements 222 are respectively There are two return pipe portions 226 respectively received in the corresponding return holes 225. Referring to Fig. 5, in the present embodiment, the two return pipe portions 226 which are opposite to each other in the longitudinal direction of the carriage body 221 are connected in the return passage 225 to collectively constitute an outer return passage. Wherein, the opposite two return pipe portions 226 respectively have mutually corresponding tapers T! and T2 at the joint. In detail, ^ taper Τ! is, for example, one of the return pipe portions 2 26 having a relatively small outer pipe diameter R at the joined position. And in addition to the pipe diameter R. It is gradually narrowed toward the opening direction of the return pipe portion 226, and the outer pipe wall is formed into an approximately tapered shape (as shown in the taper in Fig. 4). The other return pipe portion 226 has a maximum inner pipe diameter Ri at the joint at the joint, but is gradually narrowed in a direction opposite to the opening of the return pipe portion 226, so that the inner pipe wall is formed into a reverse taper shape (as shown in FIG. 4). Taper T2). Therefore, the return pipe portion 226 can be coupled to each other by the taper Ti and the Τ2, and the two can be glued or bonded together with, for example, but not limited to, glue or adhesive to form an external return passage. Of course, the above is merely an example, and other structures or techniques that can connect the two reflow elements 222 can be used, and the present invention is not limited thereto. In addition, as shown in FIG. 4, in the embodiment, each of the reflow elements 222 further has at least one reflow bend 228. One end of the return bend 228 is connected to the return pipe portion 226, and when the end cover 223 is coupled to the end face ES of the carriage body 221, the return bend 228 and the return guide groove 227 together form a return curve. The return curve is a substantially U-shaped or horseshoe-shaped curved 11 M392031 tubular structure, and the two ends respectively correspond to the inner return passage and the outer return passage, so as to guide the ball 23 to smoothly change the running direction. Among them, the return pipe portion 226 and the reflow bending groove 228 are preferably a single member formed by injection molding, and the material thereof is preferably plastic or resin. Of course, the return pipe portion 226 and the return bend groove 228 may also be separate members, and rejoined and combined. Other materials and processes that can achieve the same effect, such as metal components and grinding, can also be used to make the return pipe portion 226 and/or the return bend 228, and there is no particular limitation on the application. Furthermore, in other embodiments of the present invention, in order to enhance the ability to guide the balls 23, the return guide groove 227 and/or the return bend 228 may further comprise a plurality of return guides (not shown), A suitable angle is provided at the return element 222 to reduce the adverse effects on the ball 23 when changing the path of motion. Referring to FIG. 5 and FIG. 6 simultaneously, each of the reflow elements 222 can be disposed on both sides of the two end faces ES of the carriage body 221 by fastening, snapping, bonding, locking, fitting, or a combination thereof. And it is carried out by the direction of the front and rear end faces ES of the carriage body 221 toward the center. In the present embodiment, the connection of the reflow element 222 to the carriage body 221 is achieved by engagement. In detail, the two ends of the inner reflow tank 224 can have a recessed portion CC, and each of the reflow elements 222 is coupled to one side of the slider body 221 to provide a protrusion CV corresponding to the recess CC, and the reflow element 222 It is disposed on both sides of the two end faces ES of the carriage body 221 by the connection of the protruding portion CV and the recessed portion CC (as shown in FIG. 6). It should be particularly noted that the mutually conformable recess CC and the projection CV can simultaneously provide a positioning function to improve the accuracy of assembly of the return member 222 and the carriage body 221. In addition, 12 M392031, since the surface of the injection-molded reflow element 222 is smooth and has no deformation problem, it is easy to closely match the inner reflow groove 224 formed by the grinding. Therefore, please refer to FIG. 5 and FIG. 7 simultaneously, in this embodiment, The junction between the recessed portion CC and the protruding portion CV is substantially without a gap. In other words, the joint between the slider body 221 and the returning member 222 is substantially free of faults, which contributes to improving the stability of the movement of the ball 23 and reducing noise. . However, it should be noted that the shape and size of the recessed portion CC and the protruding portion CV may be adjusted in actual use, and may not be construed as an example limitation in the present specification, and the substantial non-offset in the present invention is Covers some errors caused by processing, assembly accuracy or other external factors. In addition, the return tube portion 226 can also be glued or bonded to the return orifice 225, for example, to further strengthen the connection between the reflow element 222 and the carriage body 221, reducing the instability of the overall structure caused by the movement of the balls 23. It should be particularly noted that the above embodiment is described by a method in which the reflow element 221 and the carriage body 221 are separately formed and reassembled. However, the reflow element 222 according to the present design can also be utilized in the carriage body. The medium injection molding method is formed. In another embodiment of the present invention, the slider body 221 may be first inserted into the mold, and then molded into the mold in a resin, so that the corresponding reflow member 222 may be integrally formed on the carriage body 221. At the same time, it is also combined with the slider body 221 to reduce the number of components of the linear motion module 2 and the assembly man-hour, thereby having the advantages of reducing labor, time and cost. Referring to FIG. 7 and FIG. 8 simultaneously, when the reflow element 222 is disposed on the carriage body 221, the end cover 223 can be further engaged, snapped, bonded, 13 M392031 locked, fitted, or a combination thereof. The front and rear end faces ES of the carriage body 221 are disposed such that the return guide groove 227 of the end cover 223 and the return bend 228 of the return member 222 together constitute a return curve of the guide ball 23. In addition, in the embodiment, the slide body 221 and the end cover 23 respectively have screw holes 以 to screw the end cover 223 and the slide body 221 from the front and rear sides of the slide body 221, and at the same time The reflow element 222 is disposed therein to further stabilize the connection of the reflow element 222 and the carriage body 221. According to the configuration of the linear motion module 2 of the present embodiment, it is preferable to cooperate with three sets of ball retaining members, which are respectively located on the upper, middle and lower sides of the inner side of the slide body 221 (according to the position thereof, the upper ball retaining member, Medium ball holder and lower ball holder). Referring to FIG. 8, in the embodiment, each of the end caps 223 may have at least two ball retaining portions 229, respectively, and preferably have four ball retaining portions 229, respectively. The four ball holding portions 229 can be coupled to each other by the two ball holding portions 229 of the parallel return holes 225 to form a ball holder penetrating the inner side of the carriage body 221. In the present embodiment, the ball retaining portions 229 of the end caps 223 may be integrally formed integrally with the end caps 223, or may be separately assembled and reassembled into different components. Further, one of the opposing two ball retaining portions 229 on the parallel return channel 225 preferably has a convex portion PJ and the other has a concave portion RC to jointly form a ball by the joint of the convex portion PJ and the concave portion RC. Holder. In addition, as shown in FIG. 8 , in the embodiment, the inner side of the sliding seat body 221 is provided with two ball retaining members 对应 corresponding to the trajectory groove 211 , and the position 14 M392031 is disposed between the two inner inner return grooves 224 . The extension is the same length as the long axis of the carriage body 221. Further, if the positions of the three sets of ball retainers are considered, the ball retaining members formed by the ball retaining portions 229 of the end caps 223 are the upper and lower ball retainers in the linear motion module 2, and are disposed on the slides. The ball holder B is in the body 221 . In addition, functionally speaking, the upper ball retainer _ is interposed with the middle ball retainer B at upper and lower ends of the upper inner return passage, and the middle ball retainer B is further disposed on the lower inner return passage with the lower ball retaining member. The lower ends are to keep the balls 23 from falling off when the carriage 22 is separated from the linear body 21. Accordingly, according to the linear motion module of the present invention, the arrangement of the reflow element in the return channel can be used to maintain the uniformity of the diameter of the ball return channel, and at the same time reduce the roughness of the channel surface to form a substantially unstrained motion. The environment helps to reduce the noise when the linear motion module is actuated and to increase the stability. In addition, since the reflow element has the characteristics of being integrated with the slider body, the number of components can be reduced, and labor, time, and cost of production can be saved. Referring to FIG. 3, in the embodiment, the sliding seat 22 further includes four dustproof members DPi and DP2. The two dustproof members DP2 are coupled to the bottom side of the sliding seat body 221, and the other two dustproof members D5 are clamped. Between the upper side of the linear body 21 and the upper ball holder. The dust-proof member DP2 is commonly used to block dust or foreign matter from entering the inside of the linear motion module 2 by the upper and lower gaps of the linear body 21 and the carriage body 221. In addition, as shown in FIG. 3, in the embodiment, the sliding seat 22 can further include a front end cover dustproof member DP3 with 15 M392031 and a rear end cover dustproof member DP4 respectively disposed on opposite end faces of the end cover 223. The other side of the ES is also used to prevent foreign matter from intruding into the interior from the front or rear end of the carriage 22. In addition to the above-described embodiments, the linear motion module according to the present invention also has another embodiment, and this embodiment focuses on the change of the reflow element and the return passage in the slider body, so the following description will be provided for the straight line. The other parts of the motion module are substantially the same as the previous embodiments, which have been described in detail above and will not be described again. Referring to FIG. 9 to FIG. 11, the slider 22' may further include at least two self-lubricating elements SL. In the present embodiment, the carriage 22' includes four self-lubricating elements SL, which are respectively disposed corresponding to the four return holes 225. Since the self-lubricating element SL is a part of the return passage (as shown in FIG. 11, the inner wall of the self-lubricating element SL is a part of the inner wall of the ball return passage), and is provided with a lubricating oil, a lubricant or a lubricating substance. Since the ball 23 passes through the self-lubricating element SL, the lubricating oil, the lubricant or the lubricating substance can be automatically adhered to achieve the purpose of lubrication. Referring to Fig. 10 and Fig. 11, in the present embodiment, the opposing return tube portions 226' are connected by the connection of the self-lubricating elements SL. Here, when the linear motion module 2' is formed, for example, the self-lubricating element SL may be first placed in the return hole 225. Thereafter, the reflow element 222' is disposed on both sides of the two end faces ES of the carriage body 221 so that the return pipe portion 226' can be coupled to the self-lubricating element SL. The two ends of the self-lubricating element SL in this embodiment respectively have a taper T3, which can be sleeved with the opposite two return pipe portions 226' having the corresponding taper T4, and together constitute an outer return channel. Among them, since the pipe diameter of the self-running 16 M392031 piece SL is open at both ends, the inner pipe of the pipe portion 226 is only slightly larger than 1 ^
又，錐产1以加強滾珠23進入時的穩定性。 又錐度Τ3的外言徑R 小内管1 # (瑕大外官徑R。長度減掉最 円吕位R。長度）較佳約為〇至〇. 且錐度τ3的長度較佳為 L的滚珠23直從’ 自潤元件SL之材質了 Α倍的滾珠23直徑。 或樹脂，但本創作以使$ =為例如但不限於金屬、塑膠 不僅因為其剛性較強，更因 為佳， 態樣。在此態樣中，相對之迴：f用在本貫施例之另-座本體22卜因此，可先將二^ 222疋射出成型於滑 本_内插於模呈Γ而的自潤元件队㈣座 222, 進行射出成型，使迴流元件 自潤兀件SL及滑座本體 同時，相對之二迴流管邻门+ 取正體。於此 :者址ϋ 定連結於自潤元件％， 避流通道’且在此實施方式中’崎部 小於〇 =Γ相連結處可達成實質無斷差（斷差可 J π ϋ. 1倍的滾珠23直徑）。 综上所述，依據本㈣之纽縣模組 :設置’取代直㈣流孔道作為外迪流通道，= 加工產生的缺陷’使整體迴流通道的管徑更為—致^ ’由於迴流元件的製成方式及連接關 差的通道管辟，鲈古4〜攻無斷 土，此有效降低直線運動模組的噪音，提 珠運動的穩定性，當進一步與士 應用砗，话^ 八、疋位、，·口構及/或自潤元件結合 :直缓=定位及/或潤滑功能。再者，依據本創作 線建動模組，其相對的二迴流元件及/或端蓋與滾珠仵 M392031 持部可以一體成型的方式形成，從而減少元件數目，節省 用料成本及加工步驟，更可以防止多次組裝產生的誤差。 與習知技術相較，本創作之直線運動模組，基於結構 設計，得以克服迴流通道中，管徑存在錐度或通道表面粗 糙度等影響滾珠運行的不利因素，有助於降低直線運動模 組作動時產生的噪音，同時提高作動時的穩定性。此外， 在此結構中亦適於設置自潤元件，以藉由潤滑物質，降低 滾珠與滾珠、或滚珠與通道間的干涉。當本創作之直線運 動模組配合一體成型的製成方式時，不僅能減少獨立的元 件數目，使滑座内各構件結合為一整體，更可以促使迴流 通道各部分緊密貼合於滑座本體，以得到完整的支撐力， 避免滾珠運動造成管道震盪的現象。 以上所述僅為舉例性，而非為限制性者。任何未脫離 本創作之精神與範疇，而對其進行之等效修改或變更，均 應包含於後附之申請專利範圍中。 【圖式簡單說明】 圖1為習知之一種直線運動模組的示意圖； 圖2為依據本創作較佳實施例之一種直線運動模組的 示意圖； 圖3為圖2所示之直線運動模組的分解圖； 圖4為圖3所示之相對之二迴流元件的示意圖； 圖5為圖3所示之滑座本體與迴流元件的組合圖； 圖6為圖3所示之滑座本體與迴流元件的組合完成 18 圖7為圖3所示之端芸 圖8為圖6所元夕、、α + 盍的示意圖；Further, the cone 1 is used to enhance the stability of the ball 23 when it enters. Further, the outer diameter of the taper Τ3 R is small inner tube 1 # (瑕大外官R R. the length minus the last 円R position R. length) is preferably about 〇 to 〇. and the length of the taper τ3 is preferably L. The ball 23 is straight from the 'self-lubricating element SL' and has a diameter of 23 balls. Or resin, but this creation is such that, for example, but not limited to metal, plastic, not only because of its rigidity, but also because it is better. In this aspect, the relative back: f is used in the other body of the present embodiment. Therefore, the second 222 疋 can be first injection molded into the slip _ the self-lubricating element interpolated into the dies. The team (four) seat 222, injection molding, so that the reflow element self-lubricating element SL and the slide body simultaneously, opposite to the two return pipe adjacent door + take the positive body. Herein, the site is determined to be connected to the self-lubricating component %, the flow avoidance channel', and in this embodiment, the 'sakis are smaller than the 〇=Γ junction, and the substantial difference can be achieved (the difference can be J π ϋ. 1 times Ball 23 diameter). In summary, according to the (4) New County module: set 'replace the straight (four) flow channel as the outer di flow channel, = the defect produced by the process 'the diameter of the overall return channel is more - ^ ^ ' due to the reflow element The production method and the connection of the poorly connected channel management, the ancient 4 ~ attack without breaking soil, this effectively reduces the noise of the linear motion module, the stability of the bead movement, when further application with the staff, then ^ 八, 疋Combination of position, /, mouth and / or self-lubricating elements: straight = positioning and / or lubrication function. Furthermore, according to the creation line module of the present invention, the opposite two reflow elements and/or the end cover and the ball holder M392031 can be integrally formed, thereby reducing the number of components, saving material cost and processing steps, and further It can prevent errors caused by multiple assembly. Compared with the conventional technology, the linear motion module of the present invention overcomes the unfavorable factors affecting the running of the ball, such as the taper of the pipe diameter or the surface roughness of the channel, based on the structural design, and helps to reduce the linear motion module. The noise generated during the operation, while improving the stability during the operation. In addition, in this configuration, it is also suitable to provide a self-lubricating element to reduce the interference between the ball and the ball or the ball and the passage by lubricating the substance. When the linear motion module of the present invention is combined with the integrally formed manufacturing method, not only the number of independent components can be reduced, but also the components in the sliding seat are combined into one whole, and the parts of the return channel can be closely adhered to the sliding seat body. In order to obtain complete support, avoid the phenomenon of pipe turbulence caused by ball movement. The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a linear motion module of the prior art; FIG. 2 is a schematic diagram of a linear motion module according to a preferred embodiment of the present invention; FIG. 3 is a linear motion module of FIG. Figure 4 is a schematic view of the opposite two reflow elements shown in Figure 3; Figure 5 is a combination of the carriage body and the reflow element shown in Figure 3; Figure 6 is the slide body shown in Figure 3 The combination of the reflow elements is completed. FIG. 7 is a schematic view of the end of FIG. 8 and FIG. 8 is a schematic diagram of the yoke and α + 图 of FIG. 6;
的組合圖； 種直線運動模組的 分解圖；Combination diagram; an exploded view of a linear motion module;
. 示意圖；以及 圖11為圖9所示之滑座本體與迴流元件的組合圖。 【主要元件符號說明】 〔習知〕 I :直線運動模組 II :線性執道體 III :軌道槽 12 :滑座 121 :内迴流槽 φ Π2 :外迴流通道 '13 :滚珠 R :内迴流通道 〔本創作〕 2、2,：直線運動模組 21 :線性軌道體 211 :軌道槽 22、22’ ：滑座 M392031 221 :滑座本體 222、222’ ：迴流元件 223 :端蓋 224 :内迴流槽 225 :迴流孔道 226、226’ ：迴流管部 227 :迴流導引槽 228 :迴流彎槽 229 :滚珠保持部 23 :滾珠 B :滾珠保持件 CC :凹陷部 CV :凸出部 DP!、DP2 :防塵件 DP3、DP4 :端蓋防塵件 ES :端面 Η :螺孔 PJ :凸部Fig. 11 is a combination view of the carriage body and the reflow element shown in Fig. 9. [Major component symbol description] [General] I: Linear motion module II: Linear actuator III: Track groove 12: Slide 121: Internal return groove φ Π 2: External return channel '13: Ball R: Internal return channel [This creation] 2, 2,: Linear motion module 21: Linear orbital body 211: Track groove 22, 22': Slide M392031 221: Slider body 222, 222': Reflow element 223: End cover 224: Internal reflow Groove 225: return flow path 226, 226': return pipe portion 227: return flow guide groove 228: return flow groove 229: ball holding portion 23: ball B: ball holder CC: recess portion CV: projection portion DP!, DP2 : Dust-proof parts DP3, DP4: End cover dust-proof parts ES: End face Η: Screw hole PJ: Projection
Ri :内管徑 R。：外管徑 RC :凹部 SL ··自潤元件 T!、T2、T3、T4 :錐度Ri : inner diameter R. : Outer diameter RC : Recessed SL · Self-lubricating element T!, T2, T3, T4 : Taper