M409323 . 五、新型說明： 【新型所屬之技術領域】 本創作闕於一種微型直線運動模組。 【先前技術】 “為能於滚珠數目有限的情況τ，㈣直線運動模組持 •、々運作’―般是藉由設置滾珠迴流通道的方絲達成。利 •用滾珠迴流通道，滾珠可在每次完成與滑座的相對運動 • 後，再重新返回線性執道及滑座之間，續行其功能。 然而，就微型直線運動模組而言，因其尺寸大小的限 制，往往難以直接地在滑座本體上進行鑽孔加工，無形之 中提向了滾珠迴流通道的製作難度與成本。 圖1為一種習知微型直線運動模組之剖面圖。請參考 圖1所示，習知微型直線運動模組1包括一線性軌道11、 /月座12及複數滾珠13。線性執道11上設置有軌道槽 111，而滑座12内側則設置有内迴流槽121，兩者共同組 _ 成滚珠運行的内迴流通道R。滑座12包括一滑座本體122 及一迴流座體123。迴流座體123兩側設置有二外迴流通 道124，滾珠13依序通過端蓋上的迴流導引彎道（圖中未 示）及外迴流通道124後，得以重新返回線性執道u及 滑座12之間。 在上述的結構中，雖然金屬製成的滑座本體122具有 足以對抗滾珠衝擊與承載物體重量的剛性及強度，但塑料 成型的迴流座體123就常常發生磨損或破裂的問題。更重 5 M409323 要的是，由於此種結構的設計，滑座本體122内側至外側 的厚度t必須大幅度縮小，方能與迴流座體123配合。因 此，在熱處理後，.滑座本體122易產生較大的變形量，造 成運作中噪音過大，嚴重甚至產生停頓或失去穩定性。另 外，又由於滑座本體122的厚度t減少，影響了整體滑座 12的剛性及強度，降低微型直線運動模組1的承載能力。 雖然，已有業者嘗試改良微型直線運動模組，以期能 解決上述問題，但卻依舊未能提供一種較佳的設計，尤其 是在穩定性方面，往往在元件與元件間會有脫離或晃動的 情況發生，使運作效能無法有效增加。 因此，如何提供一種微型直線運動模組，其具有較佳 的結構設計，以一方面提供剛性較佳的滑座本體，增加承 載能力及運作安定性，另一方面透過元件的相互配合，減 少斷差所產生的噪音，同時加強固定能力，避免元件接合 處因脫離與晃動造成妥善率降低，甚至使用危險，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微型直線 運動模組，其滑座本體之内侧至外側具有較習知為大的厚 度，以提供較佳的剛性，有效增加整體的承載能力及運作 安定性。 本創作之另一目的為提供一種微型直線運動模組，其 透過元件間結構上的相互配合以及具固定功能之元件的 M409323 設置，一方面減少斷差所產生的噪音，另一方面還可加強 固定能力，避免元件間發生脫離與晃動，造成妥善率降 低，甚至使用危險。 為達上述目的，依據本創作之一種微型直線運動模 組，包括一線性執道、一滑座以及複數滚珠。線性軌道具 有複數執道槽。滑座滑設於線性軌道，且包括一滑座本 體、複數迴流元件以及二端蓋。滑座本體内側具有對應軌 道槽之複數内迴流槽，且内迴流槽與執道槽共同構成複數 内迴流通道。滑座本體外側對應内迴流槽具有複數外迴流 槽。複數迴流元件分別連結於滑座本體外侧。各迴流元件 具有一迴流槽，且迴流槽與對應之外迴流槽共同構成一外 迴流通道。端蓋分別設置於滑座本體之兩端面，且各端蓋 分別設置具有與内迴流通道及外迴流通道對應接合之迴 流導引槽。滾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。 在本創作一實施例中，在各外迴流通道與迴流導引槽 接合處，迴流元件具有一凸出部且端蓋具有一凹陷部。凸 出部裝設於凹陷部。其中，凸出部與凹陷部之接合係實質 無斷差。 在本創作之一實施例中，各迴流元件具有一定位凸 部，且各端蓋對應定位凸部具有一定位凹部。定位凸部分 別裝設於定位凹部。 在本創作之一實施例中，微型直線運動模組更包括一 固定件，且滑座套設於固定件。其中，各端蓋具有一凹槽， 7 M409323 且固定件裝設於凹槽。較佳地，固定件具有對應迴流元件 之複數定位部，且定位部分別連結迴流元件。 在本創作之一實施例中，微型直線運動模組更包括二 防塵件^連結於滑座本體以及固定件。其中’固定件具有 二第一卡合部，防塵件分別具有一第二卡合部，當防塵件 連結於固定件時，第二卡合部卡合於第一卡合部。 在本創作之一實施例中，端蓋至少其中之一具有一注 油孔及一供油通道，供油通道連通注油孔與迴流導引槽至 少其中之一。 承上所述，因依據本創作之一種微型直線運動模組， 其利用迴流元件與滑座本體組裝的方式形成外迴流通 道，取代習知的鑽孔製程，故得使滑座本體之内側至外侧 具有較大的厚度，從而能提供較佳的剛性與強度，有效增 加模組整體的承載能力及運作安定性。除此之外，基於上 述結構，本創作更適於設置固定件，透過與端蓋之凹槽的 配合，達到例如由前後端卡固迴流元件於滑座本體上的目 的，避免在微型直線運動模組運作時發生迴流元件脫離或 晃動的問題，影響設備妥善率，甚至造成使用危險。 與習知技術相較，本創作提供一種新穎的微型直線運 動模組的設計，以多方面地改善習知結構所遇到的問題。 詳細而言，依據本創作之微型直線運動模組因具有壁厚較 厚的滑座本體，故不只剛性與強度都得以提升，更重要的 是，在熱處理後產生之熱變形量亦顯著降低，使得過去噪 音或運作不順暢的問題均得以改善。此外，因免用鑽孔此 M409323 種容易造成管道壁面形成斷差的製程技術，加之元件接合 處的組裝設計，本_之微型直線勒模組更能提供實^ 無斷差的滾珠作動環境。再透過固定件穩固迴流元件與滑 座本體的的結合後，確保滾珠所經路徑的連續、完敫，讓 精密的微型直線運動模組及應用其的設備或裝置^且有 更高的可靠度。 【實施方式】 以下將參照相關圖式，說明依據本創作之較佳實施例 的-種微型直線運動模組，其中相同的元件將以相同的元 件付5虎加以說明。 圖2為依據本創作之一種微型直線運動模組的示意 圖，而圖3為圖2所示之微型直線運動模組的分解圖。以 下先配合圖2與圖3概略介紹本創作之微型直線運動模組 的結構與元件，再進一步利用具體實施例說明相關細節。 請同時參考圖2及圖3所示’依據本創作之微型直線 運動模組2包括一線性軌道21、一滑座§以及複數滾珠 22。線性軌道21具有複數軌道槽211。滑座s滑設於線性 軌道21，且滑座S包括一滑座本體23、複數迴流元件24 及一知3蓋25。滑座本體23内側具有對應執道槽211之複 數内迴流槽231，内迴流槽231與轨道槽211共同構成一 内迴流通道。另外’滑座本體23外側設置複數外迴流槽 232。迴流元件24分別連結於滑座本體23的外侧，且各 迴流元件24對應外迴流槽232具有一迴流槽241 ’迴流槽 9 M409323 241與外迴流槽232共同構成一外迴流通道。端蓋25分別 設置於滑座本體23之兩端面233，且各端蓋25分別設置 複數與内迴流通道及外迴流通道對應接合之迴流導引槽 251。；袞珠22循環運動於内迴流通道、其中之一迴流導引 槽251、外迴流通道及另一迴流導引槽251。 依據本創作之微型直線運動模組2，其線性執道21兩 側並不限制設置一條或一條以上之執道槽211，但以分別 設置一條者為較佳，以下本實施例將以此種一條的結構為 例繼續說明本創作之技術特徵。惟要額外說明的是，為配 合其他結構的設計，本實施例中之軌道槽211實際上非為 完全連續，而可再細分兩個部分2Ua與211b。其中，值 付說明的是，在本實施例中，軌道槽211&與2ub兩部份 可於同-工段中一併研磨加工形成，相較於習知技術在拉 胚製成執道槽211後僅部分處理執道槽2m的作法而士， 本實施例可提供更高的精度，避免在端蓋防塵件（詳細說 明凊參見後述）結合時殘留間隙或干涉量過大的問題。 由於在以下的說明中，211a與2m兩者之功能與接 觸的滾珠表面均相同，且未勞、、θ /、 且未免此淆，以下仍將軌道槽的兩 σ刀a，、211 b總和以執道槽211繼續說明。 dl圖2所示之微型直線運動模組於剖面線A-A處 =視不』，惟為使管道結構能夠清楚顯示，圖中 不右側的滾珠22，而將左側滾破 ，·肩 者同Q “ 珠22暫時移除。請同時參 古』4所*，在本實施例中，滑座本體23内側且 有對應兩條軌道槽211之内迴流 ^ l才曰231，且兩條内迴流槽 M409323 • 231與兩條軌道槽211共同構成兩條内迴流通道R!，另 外，滑座本體23外側則同樣依對應關係而設置兩條外迴 流槽232。仍再次強調的是，本創作之軌道槽211、内迴 流槽231與外迴流槽232的數目並無限制，僅需相互之間 具有對應關係即可，換言之，在彼此數目能對應的情況 下，其他條數的設置亦係涵蓋於本創作之範圍内。 一般而言，滑座本體23係為一金屬件，故在本實施 例中，可以例如但不限於研磨加工法方式製作内迴流槽 φ 231及/或外迴流槽232。以製程流程而言，由於研磨加工 步驟可於熱處理步驟後進行，故可避免因熱變形而影響内 迴流槽231及外迴流槽232的精準度。又，相較於習知的 鑽孔加工而言，本創作之滑座本體23結構不僅能於一次 工段中，一併對内迴流槽231及外迴流槽232進行研磨加 工，且加工時是一次對各迴流槽的整個表面實施，故所形 成的槽面是實質無斷差且表面粗糙度更佳，有利於滾珠22 於上滾動。然需特別說明的是，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。 請同時參考圖3及圖4所示，迴流元件24分別連結 於滑座本體23的左右兩外侧，在本實施例中，各迴流元 件24與滑座本體23的連結可藉由扣合、卡合、黏合、鎖 合、嵌合或其組合的方式達成，且是由滑座本體23的左 右兩側向中心的方向進行。 本實施例中之各迴流元件24分別對應外迴流槽232 11 M409323 而具有一迴流槽241，且各迴流槽241又分別與其對應之 外迴流槽232共同構成一外迴流通道R2，換言之，在本實 施例中，共計有兩條迴流槽241與兩條外迴流槽232而共 同形成兩條外迴流通道。然而，單一迴流元件24上具 有之迴流槽241的數目非本創作所欲限制者，反而在符合 對應關係的情況下，其他例如一個迴流元件24上設置兩 條迴流槽241亦無不可。另外，在本實施例中，迴流元件 24之材質可例如為塑膠，且是藉由射出成型製作的一體成 型元件，故迴流槽241的表面同樣可達無斷差的程度。當 然，迴流元件24的材質及製成方式亦可為其他可達到相 同功效者，例如金屬件與研磨加工方式，應用上並無特別 限制。 兩端蓋25分別設置於滑座本體23之兩端面233，詳 言之，兩端蓋25係沿滑座本體23的長軸方向利用例如螺 絲鎖固的方式結合於兩端面233。各端蓋25分別具有與内 迴流通道R!及外迴流通道R2對應接合之迴流導引槽 251。在本實施例中，各端蓋25在左右兩側分別設置一條 與内迴流通道及外迴流通道R2對應接合之迴流導引槽 251。具體而言，迴流導引槽251為一實質呈U字型的彎 槽，可與迴流元件24上設置之一迴流彎槽242相配合， 以導引滾珠22離開内迴流通道R!並進入外迴流通道R2， 或導引滚珠22離開外迴流通道R2並進入内迴流通道Rj。 另外，在本創作之其他實施例中，為強化導引滾珠22的 能力，迴流導引槽251及/或迴流彎槽242可更包含複數迴 12 M409323 流導引件（圖中未示）。 请參考圖4所示’在本實施例中，由於不需使用習知 的迴流座體，故外迴流槽232的設置位置可向外移動至滑 座本體23的最外侧表面上，使得内迴流通道心與外迴流 通道R2間有較大的距離d(即外迴流槽2 3 2與内迴流槽2 3 i 間有較大的距離d)，同時間接加大滾珠22的迴轉半徑『， - 降低滾珠22因迴轉半徑r過小而與通道干涉的問題。 . 據上可知，由於内迴流槽231及外迴流槽232是藉由 _ 研磨加工製作而成，沒有習知鑽孔定位失準的問題，且可 有效減低熱處理變形的影響，加之塑料製成的迴流元件24 容易以模具控制成型的效果，因此當滑座本體23、迴流元 件24與端蓋25結合後，包括内迴流通道Ri、外迴流通道 R2與其他部分之循環路徑的管壁均得以維持適當的平滑 度’減少運作時發出噪音或產生停頓意外，提高微型直線 運動模，、且2的穩疋性。此外，同樣由於内迴流槽1是以 研磨加工製作’故可節省鑽孔加工所需的空間，加大滚珠 22迴轉半徑r’降低滾珠22與通道間的相互干涉，又為另 一項可減少噪音及適於在高速下運作的優勢。 —除上述功效外，本創作之微型直線運動模組更可藉由 搭配額外的結構，而進一步提供多項優勢，以下將基於圖 3中所不的各元件並配合其他圖示分別說明之。 圖5為圖3所不之滑座本體與迴流元件結合後且待接 合端蓋前的示意圖。請參考圖5所示，本實施例中，在各 外迴流通道與迴流導引槽251接合處，迴流元件Μ具有 13 M409323 一凸出部243且端蓋25具有一凹陷部252。在本實施例 中，迴流元件24可於前後端分別具有凸出部243，而端蓋 25則具有對應數目的凹陷部252。詳就結構而言，凸出部 243與凹陷部252具有對應的構型，使得當端蓋25連結於 滑座本體23與迴流元件24時，凸出部243可裝設並例如 卡合於凹陷部252。利用凸出部243與凹陷部252對應的 形狀與尺寸，從而能讓端蓋25易於定位，除加速組裝流 程外，更能提高精密度，利於微型直線運動模組2運作。 當然，雖本實施例中所示的凸出部243係為半環狀，但實 際運用時不以此為限，其他適於使用的形狀亦可替換之。 進一步而言，由於迴流元件24與端蓋25均可為塑料 射出成型的元件，故利用核具的設計，再輔以適當的製程 條件，即可輕易使凸出部243與凹陷部252之接合達到實 質無斷差，有助於滾珠循環路徑之管壁的連續性與平整 性，減少不利滾珠22運動的條件。 依據上述原理，同樣地，在迴流元件24與端蓋25接 合處，迴流元件24更可具有一定位凸部244，且各端蓋 25對應定位凸部244具有一定位凹部253，當兩者連結 時，定位凸部244分別裝設於定位凹部253。在本實施例 中，各迴流元件24在前端與後端分別具有兩個定位凸部 244，而端蓋25則具有對應數目的定位凹部253。透過定 位凸部244與定位凹部253的結合設計，能夠更強化端蓋 25的定位。 圖6為圖3所示之滑座待結合固定件與防塵件前的示 14 M409323 2依#本創作之微型直線運動模組2，端蓋％至少 施例中V具有—注油孔255及一供油通道256。在本實 =油ΤΙ兩端蓋25均設置有-個注油…左右 長輛方向二Γ25=: 由：255係沿滑座本體23之M409323 . V. New description: [New technical field] This creation is based on a miniature linear motion module. [Prior Art] "In order to be able to have a limited number of balls τ, (4) Linear motion module holding, "々 operation" is generally achieved by setting the square wire of the ball return channel. Lee • With the ball return channel, the ball can be Each time the relative movement with the carriage is completed, it is returned to the line between the linear and the slides to continue its function. However, in the case of miniature linear motion modules, it is often difficult to directly Drilling processing on the slider body invisibly improves the difficulty and cost of the ball return channel. Figure 1 is a cross-sectional view of a conventional micro-linear motion module. Please refer to Figure 1, The micro linear motion module 1 includes a linear track 11, a lunar seat 12 and a plurality of balls 13. The linear channel 11 is provided with a track groove 111, and the inner side of the slide 12 is provided with an inner return groove 121, which are collectively _ The inner return passage R of the ball is operated. The slide 12 includes a slide body 122 and a return seat 123. Two return passages 124 are disposed on both sides of the return base 123, and the balls 13 sequentially pass through the return guide on the end cover. Leading curve After the outer return passage 124 and the outer return passage 124, it is possible to return to between the linear guide u and the slide 12. In the above structure, although the slide body 122 made of metal has sufficient resistance against the ball impact and the weight of the load bearing object. Rigidity and strength, but the plastic molded reflow seat 123 often suffers from wear or cracking. Heavier 5 M409323 It is necessary that the thickness t from the inside to the outside of the carriage body 122 must be greatly reduced due to the design of this structure. Therefore, after the heat treatment, the slider body 122 is liable to generate a large amount of deformation, resulting in excessive noise during operation, serious or even stall or loss of stability. The thickness t of the body 122 is reduced, which affects the rigidity and strength of the overall sliding seat 12, and reduces the bearing capacity of the miniature linear motion module 1. Although the prior art attempts to improve the miniature linear motion module, in order to solve the above problems, Still failing to provide a better design, especially in terms of stability, often there is a detachment or sway between the component and the component, so that Therefore, how to provide a micro-linear motion module has a better structural design, so as to provide a slider body with better rigidity on the one hand, which increases load carrying capacity and operational stability, and transmits components. The mutual cooperation reduces the noise generated by the fault, and at the same time strengthens the fixing ability, avoids the reduction of the proper ratio of the joints of the components due to detachment and shaking, and even the danger of use. It has become one of the important topics. The purpose of the present invention is to provide a miniature linear motion module having a relatively large thickness from the inside to the outside of the slider body to provide better rigidity, thereby effectively increasing the overall load carrying capacity and operational stability. Another object of the present invention is to provide a miniature linear motion module which is configured by inter-element interaction and M409323 of fixed-function components to reduce the noise generated by the fault and enhance the fixing capability. To avoid detachment and sway between components, resulting in a lower proper rate and even use Danger. In order to achieve the above object, a miniature linear motion module according to the present invention includes a linear guide, a slide and a plurality of balls. Linear orbits have multiple lanes. The slider slides on the linear track and includes a slider body, a plurality of reflow elements, and a two-end cover. The inner side of the slider body has a plurality of inner return grooves corresponding to the track grooves, and the inner return groove and the track groove together constitute a plurality of inner return channels. The outer side of the slide body corresponding to the inner return groove has a plurality of outer return grooves. The plurality of reflow elements are respectively coupled to the outside of the slider body. Each of the reflow elements has a return flow, and the return flow and the corresponding outer return flow together form an outer return passage. The end caps are respectively disposed on both end faces of the slider body, and each of the end caps is respectively provided with a return flow guiding groove correspondingly engaged with the inner return passage and the outer return passage. The balls circulate in the inner return passage, one of the return guide grooves, the outer return passage, and the other return guide groove. In an embodiment of the present invention, at the junction of each of the outer return passages and the return guide groove, the return member has a projection and the end cap has a recess. The protruding portion is installed in the recessed portion. Wherein, the joint between the protruding portion and the concave portion is substantially free of a gap. In one embodiment of the present invention, each of the reflow elements has a locating projection, and each of the end caps has a locating recess corresponding to the locating projection. The positioning convex portion is not installed in the positioning concave portion. In an embodiment of the present invention, the miniature linear motion module further includes a fixing member, and the sliding seat is sleeved on the fixing member. Wherein, each end cap has a groove, 7 M409323 and the fixing member is installed in the groove. Preferably, the fixing member has a plurality of positioning portions corresponding to the reflow members, and the positioning portions respectively connect the reflow members. In one embodiment of the present invention, the micro linear motion module further includes two dustproof members coupled to the slider body and the fixing member. The fixing member has two first engaging portions, and the dustproof members respectively have a second engaging portion. When the dustproof member is coupled to the fixing member, the second engaging portion is engaged with the first engaging portion. In an embodiment of the present invention, at least one of the end caps has an oil injection hole and an oil supply passage, and the oil supply passage communicates with at least one of the oil injection hole and the return flow guide groove. According to the above description, a miniature linear motion module according to the present invention forms an external return channel by means of assembling the reflow element and the slider body, instead of the conventional drilling process, so that the inner side of the slider body is The outer side has a large thickness, thereby providing better rigidity and strength, and effectively increasing the overall bearing capacity and operational stability of the module. In addition, based on the above structure, the present invention is more suitable for providing a fixing member, and through the cooperation with the groove of the end cover, for example, the purpose of clamping the return element on the sliding seat body by the front and rear ends, thereby avoiding the movement in the micro linear motion. When the module is in operation, the problem of the reflow or sloshing of the return element occurs, which affects the proper rate of the device and even causes danger of use. Compared with the prior art, the present invention provides a novel design of a miniature linear motion module to improve the problems encountered in conventional structures in various ways. In detail, according to the micro-linear motion module of the present invention, since the slider body has a thick wall thickness, not only the rigidity and the strength are improved, but more importantly, the amount of thermal deformation generated after the heat treatment is also significantly reduced. The problems of past noise or poor operation have been improved. In addition, due to the elimination of the drill hole, the M409323 process technology that easily causes the wall surface to form a gap, and the assembly design of the component joints, the micro-linear linear module can provide a ball-free environment with no break. Through the fixing member, the combination of the reflow element and the sliding seat body ensures the continuous and complete path of the ball, and the precision micro-linear motion module and the equipment or device applying the same have higher reliability. . [Embodiment] Hereinafter, a micro-linear motion module according to a preferred embodiment of the present invention will be described with reference to the related drawings, in which the same elements will be described with the same elements. 2 is a schematic view of a miniature linear motion module according to the present invention, and FIG. 3 is an exploded view of the miniature linear motion module shown in FIG. 2. The structure and components of the miniature linear motion module of the present invention will be briefly described below with reference to FIG. 2 and FIG. 3, and further details will be described using specific embodiments. Referring to FIG. 2 and FIG. 3 simultaneously, the miniature linear motion module 2 according to the present invention includes a linear track 21, a sliding seat §, and a plurality of balls 22. The linear track 21 has a plurality of track grooves 211. The slide s is slidably disposed on the linear track 21, and the slide S includes a slide body 23, a plurality of reflow elements 24, and a cover 3 cover 25. The inner side of the carriage body 23 has a plurality of inner return grooves 231 corresponding to the channel grooves 211, and the inner return grooves 231 and the track grooves 211 together form an inner return passage. Further, a plurality of outer recirculation grooves 232 are provided outside the slider body 23. The reflow elements 24 are respectively coupled to the outer side of the carriage body 23, and each of the reflow elements 24 has a return groove 241' corresponding to the outer recirculation groove 232. The reflow tank 9 M409323 241 and the outer recirculation groove 232 together form an outer return passage. The end caps 25 are respectively disposed on the end faces 233 of the slide body 23, and each of the end caps 25 is provided with a plurality of return guide grooves 251 correspondingly engaged with the inner return passage and the outer return passage. The bead 22 circulates in the inner return passage, one of the return guide grooves 251, the outer return passage, and the other return guide groove 251. According to the micro-linear motion module 2 of the present invention, one or more of the orbital slots 211 are not limited to be disposed on both sides of the linear lane 21, but it is preferable to separately provide one, and the following embodiment will be The structure of a piece continues to illustrate the technical features of this creation. It should be additionally noted that, in order to conform to the design of other structures, the track grooves 211 in this embodiment are not actually completely continuous, and the two portions 2Ua and 211b may be subdivided. It should be noted that, in the embodiment, the two portions of the track grooves 211 & and 2ub can be formed by grinding together in the same section, and the embossing groove 211 is formed in the drawing embryo compared with the prior art. After only partially processing the channel 2m, this embodiment can provide higher precision and avoid the problem of excessive residual interference or excessive interference when the end cover dustproof member (described in detail later). Since in the following description, both the functions of 211a and 2m are the same as the surface of the ball in contact, and the ruthlessness, θ / , and the confusion are not avoided, the sum of the two σ knives a, 211 b of the track groove will be hereinafter. The description continues with the obstruction slot 211. Dl The micro-linear motion module shown in Figure 2 is in the section line AA = no, only to make the pipe structure clearly visible, the ball 22 is not on the right side of the figure, and the left side is broken, and the shoulder is the same as Q" The bead 22 is temporarily removed. Please refer to the "4" in the same time. In this embodiment, the inside of the slider body 23 has a corresponding reflow inside the two track grooves 211, and two inner recirculation grooves M409323 • 231 and the two track grooves 211 together form two inner return channels R!, and the outer side of the slide body 23 is also provided with two outer return grooves 232 according to the corresponding relationship. Again, the track groove of the present creation is emphasized. 211, the number of inner recirculation grooves 231 and outer recirculation grooves 232 is not limited, and only need to have a corresponding relationship with each other. In other words, in the case where the number of each other can correspond, the other number of settings is also included in the present creation. In general, the slider body 23 is a metal member. Therefore, in the embodiment, the inner recirculation groove φ 231 and/or the outer reflow groove 232 can be fabricated by, for example, but not limited to, a grinding process. Process, due to the grinding process step It can be carried out after the heat treatment step, so that the accuracy of the inner return groove 231 and the outer return groove 232 due to thermal deformation can be avoided. Moreover, the structure of the slide body 23 of the present invention is compared with the conventional drilling process. The inner return groove 231 and the outer return groove 232 can be polished not only in one working stage, but also in the entire surface of each return groove during processing, so that the groove surface formed is substantially without a gap and the surface Better roughness allows the ball 22 to roll up. It is important to note that the substantial unbroken® difference in this creation is to cover some of the errors caused by machining, assembly accuracy or other external factors. Referring to FIG. 3 and FIG. 4 simultaneously, the reflow elements 24 are respectively coupled to the left and right outer sides of the slider body 23. In this embodiment, the connection of each reflow element 24 and the carriage body 23 can be coupled by a card or a card. The method of joining, bonding, locking, fitting, or a combination thereof is achieved, and is performed by the left and right sides of the slider body 23 toward the center. The reflow elements 24 in this embodiment respectively correspond to the outer reflow grooves 232 11 M409323. And have The recirculation tank 241, and each of the recirculation tanks 241 and the corresponding recirculation tank 232 respectively constitute an outer recirculation passage R2. In other words, in the present embodiment, there are two recirculation grooves 241 and two outer recirculation grooves 232. Two outer recirculation channels are formed. However, the number of reflow grooves 241 on a single reflow element 24 is not intended to be limited by the author. Instead, in the case of a corresponding relationship, two reflow elements are provided, for example, on one reflow element 24. In addition, in the present embodiment, the material of the reflow element 24 can be, for example, a plastic, and is an integrally formed member produced by injection molding, so that the surface of the reflow groove 241 can also reach a level without a gap. Of course, the material and the manner of preparation of the reflow element 24 can be other than those which can achieve the same effect, such as metal parts and grinding processing, and the application is not particularly limited. The end caps 25 are respectively disposed on the both end faces 233 of the slider body 23, and in detail, the end caps 25 are coupled to the both end faces 233 by, for example, screwing in the longitudinal direction of the slider body 23. Each of the end caps 25 has a return guide groove 251 which is engaged with the inner return passage R! and the outer return passage R2, respectively. In the present embodiment, each of the end covers 25 is provided with a return guide groove 251 which is coupled to the inner return passage and the outer return passage R2, respectively, on the left and right sides. Specifically, the return guide groove 251 is a substantially U-shaped curved groove, and can be matched with a return flow groove 242 provided on the reflow element 24 to guide the ball 22 away from the inner return passage R! The return passage R2, or the guide ball 22, exits the outer return passage R2 and enters the inner return passage Rj. Additionally, in other embodiments of the present invention, to enhance the ability to guide the ball 22, the return guide slot 251 and/or the return bend 242 may further include a plurality of 12 M409323 flow guides (not shown). Referring to FIG. 4, in the present embodiment, since the conventional reflow base is not required, the position of the outer recirculation groove 232 can be moved outward to the outermost surface of the carriage body 23, so that the inner reflow is performed. There is a large distance d between the channel core and the outer return channel R2 (ie, there is a large distance d between the outer recirculation groove 2 3 2 and the inner recirculation groove 2 3 i), and at the same time, the radius of gyration of the ball 22 is indirectly increased. The problem that the ball 22 interferes with the passage due to the small radius of gyration r is reduced. As can be seen from the above, since the inner reflow tank 231 and the outer reflow tank 232 are fabricated by _grinding, there is no known problem of misalignment of the borehole, and the effect of heat treatment deformation can be effectively reduced, and the plastic is made. The reflow element 24 is easy to control the effect of molding by the mold, so that when the carriage body 23, the reflow element 24 and the end cover 25 are combined, the wall including the inner return passage Ri, the outer return passage R2 and the circulation path of the other portions is maintained. Appropriate smoothness 'reduces noise or pause accidents during operation, improves micro-linear motion mode, and 2 is stable. In addition, since the inner recirculation groove 1 is made by grinding, the space required for the drilling process can be saved, and the radius of rotation r' of the ball 22 is increased to reduce the mutual interference between the ball 22 and the passage, and the other can be reduced. Noise and the advantages of being suitable for operation at high speeds. In addition to the above-mentioned effects, the miniature linear motion module of the present invention can further provide a plurality of advantages by combining additional structures. The following description will be respectively based on the components in FIG. 3 and other diagrams. Fig. 5 is a schematic view of the slider body of Fig. 3 combined with the reflow element and before the end cap is to be joined. Referring to Fig. 5, in the present embodiment, at the junction of each of the outer return passages and the return guide groove 251, the reflow element has a 13 M409323 projection 243 and the end cover 25 has a recess 252. In the present embodiment, the reflow element 24 may have projections 243 at the front and rear ends, respectively, and the end caps 25 have a corresponding number of recesses 252. In detail, the protrusion 243 and the recess 252 have a corresponding configuration, so that when the end cover 25 is coupled to the slider body 23 and the reflow element 24, the protrusion 243 can be mounted and engaged, for example, in the recess. Part 252. By utilizing the shape and size of the projection 243 corresponding to the recess 252, the end cover 25 can be easily positioned, and in addition to accelerating the assembly process, the precision can be improved, which facilitates the operation of the micro linear motion module 2. Of course, although the protruding portion 243 shown in this embodiment is a semi-annular shape, the actual use is not limited thereto, and other shapes suitable for use may be replaced. Further, since both the reflow element 24 and the end cover 25 can be plastic injection molded components, the projections 243 and the recesses 252 can be easily joined by the design of the fixture and the appropriate process conditions. A substantial non-slip difference is achieved, which contributes to the continuity and flatness of the wall of the ball circulation path, and reduces the conditions for the unfavorable movement of the ball 22. According to the above principle, in the same manner, at the junction of the reflow element 24 and the end cover 25, the reflow element 24 can further have a positioning protrusion 244, and each end cover 25 corresponding to the positioning protrusion 244 has a positioning recess 253, when the two are connected The positioning convex portions 244 are respectively disposed in the positioning concave portions 253. In the present embodiment, each of the reflow elements 24 has two positioning projections 244 at the front end and the rear end, respectively, and the end cap 25 has a corresponding number of positioning recesses 253. The positioning of the end caps 25 can be further enhanced by the combination of the positioning projections 244 and the positioning recesses 253. FIG. 6 is a micro-linear motion module 2 of the present invention shown in FIG. 3, which is to be combined with a fixing member and a dustproof member. The end cover is at least V in the embodiment, and has an oil hole 255 and a Oil supply passage 256. In this real = oil sill both ends of the cover 25 are provided with - an oil injection ... left and right long direction two Γ 25 =: by: 255 along the carriage body 23
不限於以手動添加或以儲油箱自動補充的方 月座s内部補充潤滑油料。而供油通道256則設置於 :: 25接合滑座本體23之一側，且分別連通注油孔255 入兩側之迴流導引槽251，以將潤滑油料由注油孔故導 引槽251 ’而確實與滾珠22接觸，達到调滑的g .田^在。又置有固定件26及端蓋防塵件28的實施例 ’兩者上則另需設置開口 P，以與注油孔255配合。 綜上所述，因依據本創作之一種微型直線運動模组， :利用迴流元件與滑座本體組裝的方式形成外迴流通 道取代背知的鑽孔製程，故得使滑座本體之内側至外側 ”有車乂大的厚度’從而能提供較佳的剛性與強度，有效增 加拉組整體的承載能力及運作安紐。除此之外，基於上 述結構’賴作更適於設置固定件，透過與端蓋之凹槽的 配合’達到例如由前後端卡_流元件於滑座本體上的目 的’避免在微型直線運祕㈣料發生迴流元件脫離或 晃動的問題，影響㈣妥善率，甚至造成使用危險。/ 與習知技術相較，本創作提供一種新穎的微型直線運 動模組的設計’以多方面地改善習知結構所遇到的問題。 詳細而言’依#本創作之微型直線運__具有壁厚較 17 M409323 厚的滑座本體，故不只剛性與強度都得以提升，更重要的 是，在熱處理後產生之熱變形量亦顯著降低，使得過去噪 音或運作不順暢的問題均得以改善。此外，因免用鑽孔此 種容易造成管道壁面形成斷差的製程技術，改以研磨加工 法製成滾珠接觸的各表面，加之元件接合處的組裝設計， 本創作之微型直線運動模組更能提供實質無斷差且槽面 粗糙度更佳的滾珠作動環境。再透過固定件穩固迴流元件 與滑座本體的的結合後，確保滾珠所經路徑的連續、完 整，讓精密的微型直線運動模組及應用其的設備或裝置都 具有更高的可靠度。 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為一種習知微型直線運動模組之剖面圖； 圖2為依據本創作之一種微型直線運動模組的示意 圖； 圖3為圖2所示之微型直線運動模組的分解圖； 圖4為圖2所示之微型直線運動模組於剖面線A-A處 的前視示意圖； 圖5為圖3所示之滑座本體與迴流元件結合後且待接 合端蓋前的示意圖；以及 圖6為圖3所示之滑座待結合固定件與防塵件前的示 18 M409323 意圖。 【主要元件符號說明】 〔習知〕 1 :微型直線運動模組 11 :線性執道 111 :執道槽 12 :滑座 121 :内迴流槽 122 :滑座本體 123 :迴流座體 124 :外迴流通道 13 :滾珠 R '·内迴流通道 t :厚度 〔本創作〕 2 :微型直線運動模組 21 :線性軌道 211 :軌道槽 211a、211b :軌道槽之部分 22 :滾珠 23 :滑座本體 231 :内迴流槽 232 :外迴流槽 19 M409323 233 :端面 24 :迴流元件 241 :迴流槽 242 :迴流彎槽 243 :凸出部 244 :定位凸部 245 :側凹槽 25 :端蓋 251 :迴流導引槽 252 :凹陷部 253 :定位凹部 254 :凹槽 255 :注油孔 2 5 6 :供油通道 26 :固定件 261 :固定件卡合部 262 :定位部 263 :第一卡合部 27 :防塵件 271 :第二卡合部 28 :端蓋防塵件 29 :滾珠保持件 S :滑座 Η :螺孔 M409323 P :開口It is not limited to the internal replenishment of the lunar seat s that is manually added or automatically replenished with the storage tank. The oil supply passage 256 is disposed on one side of the: 25 joint slide body 23, and respectively communicates the oil injection hole 255 into the return guide grooves 251 on both sides, so as to guide the lubricating oil from the oil injection hole and guide the groove 251' It is indeed in contact with the ball 22, and it reaches the g-sliding g. Further, in the embodiment in which the fixing member 26 and the end cover dustproof member 28 are provided, an opening P is additionally provided to be engaged with the oil filling hole 255. In summary, according to a miniature linear motion module according to the present invention, an external return channel is formed by means of the assembly of the reflow element and the slide body instead of the known drilling process, so that the inner side of the slide body is to the outer side. "The thickness of the rut" can provide better rigidity and strength, effectively increase the overall load-carrying capacity and operation of the pull group. In addition, based on the above structure, it is more suitable for setting the fixing parts. The cooperation with the groove of the end cap 'to achieve the purpose of, for example, the front-end end card-flow element on the slide body' avoids the problem that the reflow element is detached or shaken in the micro-linear transport (four) material, affecting (4) the proper rate, or even causing Danger of use. / Compared with the prior art, this creation provides a novel design of a miniature linear motion module to improve the problems encountered in the conventional structure in many ways. __ has a wall thickness of 17 M409323 thick slider body, so not only the rigidity and strength are improved, more importantly, the amount of thermal deformation generated after heat treatment is also significantly reduced, The problems of noise or unsmooth operation have been improved. In addition, due to the avoidance of the drilling process, which is easy to cause the wall surface of the pipe to form a gap, the surface of the ball contact is made by the grinding process, and the component joint is added. The assembly design, the micro-linear motion module of the creation can provide a ball-operating environment with no gap and better groove surface roughness. After the fixing member stabilizes the combination of the reflow element and the sliding seat body, the ball is ensured. Through the continuous and complete path, the precision micro-linear motion module and the equipment or device using the same have higher reliability. The above is only an example, not a limitation. The spirit and scope of the invention, and equivalent modifications or alterations thereof, shall be included in the scope of the appended patent application. [Simplified illustration of the drawings] Figure 1 is a cross-sectional view of a conventional micro-linear motion module; 2 is a schematic diagram of a miniature linear motion module according to the present invention; FIG. 3 is an exploded view of the miniature linear motion module shown in FIG. 2; FIG. 4 is a micro diagram shown in FIG. FIG. 5 is a schematic front view of the linear motion module in section line AA; FIG. 5 is a schematic view of the slider body shown in FIG. 3 combined with the return element and in front of the end cap to be joined; and FIG. 6 is the slide shown in FIG. The front view of the assembly is to be combined with the front part of the dustproof part. M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M Slot 122: slide body 123: reflow base 124: outer recirculation passage 13: ball R '· inner recirculation passage t: thickness [this creation] 2: micro linear motion module 21: linear rail 211: track grooves 211a, 211b : Track groove portion 22 : Ball 23 : Slide body 231 : Inner return groove 232 : External return groove 19 M409323 233 : End face 24 : Reflow element 241 : Reflow groove 242 : Reflow groove 243 : Projection portion 244 : Positioning convex Portion 245: side groove 25: end cover 251: return guide groove 252: recessed portion 253: positioning recess 254: groove 255: oil hole 2 5 6 : oil supply passage 26: fixing member 261: fixing member engaging portion 262: positioning portion 263: first engaging portion 27: dustproof member 271: second engaging portion 28: Dust cap member 29: ball retainer member S: slide [eta]: screw M409323 P: opening
Ri :内迴流通道 r2 :外迴流通道 d :距離 r :迴轉半徑Ri : internal return channel r2 : external return channel d : distance r : radius of gyration