W〇'76 =、發明說明： 【發明所屬之技術領域】 本發鴨餘珠螺桿有關，特別是指—料贿滾珠螺 才干裝置。 【先前技術】 △按滾珠螺桿是使用在各種加工母機上，例如財的工作 台、磨床的工作台、車床的刀具、鑽床的工作台等等，凡是加 工=機上需要有上、下、左、右移動的工作台，皆組配有滾珠 螺杯。-般滾珠螺桿依據其滾動元件的流動方式區分為内循淨 f朱螺桿解循環滾珠螺桿，而本發狀要探料循環滾珠= 杯料循環滚珠螺桿的迴流方式為將滚動元件導 迴流以完成循環。 、卜邛 如美國專利US3,143,896，請參考第工圖所*，循環元件 11係透過二聊部111組設於螺帽12内，且其循環路徑112係 徑121相通’#以供滾動元件13通過，然而該循 衣k 12與螺桿14軸向垂直，因此該滾動元件 環路徑出的進出口轉折處113容 2 成聲響更會降低频環元件u使料限，而 不佳的外•讀柄、桿裝置。 再如美國專利US7, _，189，請參考第2圖所示，顯示 ㈣嶋瓣版输件15，同樣的， L 151與螺桿（圖上未示）轴向垂直，造成傭環路 3 1354076W〇'76 =, invention description: [Technical field to which the invention belongs] The hair of the duck is related to the screw, especially the material of the bribe ball screw. [Prior Art] △The ball screw is used on various processing machines, such as the work table of the financial platform, the work table of the grinding machine, the tool of the lathe, the work table of the drilling machine, etc., where the machining = machine needs to be up, down, left The right-moving workbench is equipped with a ball screw cup. - The ball screw is divided into the internal ball net according to the flow mode of the rolling element, and the circulating ball screw of the present invention is the circulating ball of the material. The return mode of the ball screw is to guide the rolling element back. Complete the loop. For example, U.S. Patent No. 3,143,896, the disclosure of which is incorporated herein by reference in its entirety by reference in its entirety in the the the the the the the the the the the 13 passes, however, the garment k 12 is axially perpendicular to the screw 14, so that the entrance and exit turning point 113 of the rolling element ring path is 2, and the frequency ring element is lowered to make the material limit, which is not good. Read handle, rod device. Further, as shown in U.S. Patent No. 7, 189, 189, please refer to Fig. 2, showing (4) 嶋 flap version of the delivery member 15, similarly, L 151 is perpendicular to the screw (not shown), causing the servant loop 3 1354076
I I 徑151進出口轉折處152因受撞擊所產生的缺陷，除此之 外，由於該循環元件15細左右兩片結合後組配於該螺帽 (圖上未示）上’加上該循環亓彼m 衣凡件15的循環路徑151進出口 轉折處152具有衝擊點，因此，為避免該循環元件15受撞 擊而被· ’必彡 1料料1舰避倾環元件15 的受損’而私—種結構設料㈣外循雜珠螺捍裝置。 據此’如何能開發出-種外猶環滚珠螺桿裝置，其可解決 上述的缺陷，即為本案發明的動機。 f發明内容】 P之目的在於提供—種外循環滾珠螺桿裳置，i主 要設計猶觀件㈣觀徑，使施設後_環路徑林 螺桿轴向垂直，避免滾動元件直接撞擊該猶環路徑的進出 口轉折處。 本發明另-目的在於提供—種外循環滾珠螺桿裳置，立 盾環元件延著循環路徑的輪廓線分為内、外蓋之結 歉\且_環元件組合於_帽後，其由該螺桿轴向 :r=:r 一態― ，環===含:據：所=-種 滾動溝.—_ 螺#，其周緣具有 壁具有$_目’其具有供該螺桿穿㈣穿孔，該穿孔孔 有康動槽，該滾動槽與該滾動溝形成—負荷路徑；一 4 1354076 I \ ««元件’其兩端為第^部與第二腳部，且第一腳部與 第一腳部之間具有一連接部’該第一、二腳部係Μ置於 螺帽；一循環路徑，其係設置於該循環元件内部，且貫^ 该第一腳部、連接部以及第二連接部’並與該負荷路徑相 通，έ亥循環路輕兩端具有進出段、接續該進出段的第一彎 角段、接續該第一彎角段的第二彎角段以及位於該第二彎 角段之間的連接段，其中該第一彎角段由螺桿轴向觀之係 • 1直線型態，該第二，彎角段由螺桿徑向觀之係呈等半徑曲 線型態者；複數個滾動元件，其係於該負荷路徑與崎環 路徑内滾動。 又 有關本發明為達成上述目的’所採用之猶、手段及其他 之功效，兹舉-較佳可行實施例並配合圖式詳細說明如后。 【實施方式】 —首先明配合參閱第3至6圖所示，本發明實施例所提供的 » 一種外循環滾珠螺桿裝置，其主要係由一螺桿20、一螺帽 -循％<7〇件40、二彳轉路徑5G以及複數個滾動元件 所紐合而成，其中： 該螺桿20，其周緣具有滾動溝2卜且具有-軸向A與 一徑向B。 。亥螺中目30，其具有供該螺桿2〇穿置的穿孔％，該穿 /孔壁具有滾動槽（圖上未示），該滾動槽與該滾動溝 形成貞何路從（圖上未示）。另外，該螺帽3〇外表面 之，戎第二彎角段53不論係由螺桿20軸向A或徑向B觀 之皆係呈等半徑曲線型態。 複數個滾動凡件（圖上未示），其係於該負荷路徑與該 循環路徑50内滾動。 以上所述即為本發明實施例各主要構件之結構及其組態 說明。 本發明實施例至少可達到下列之功效。 其一、由於本發明將循環路徑的彎角處設計成第一彎角 段與第二彎角段’且由螺桿軸向觀之，該第一彎角段係呈 直線型態’該第二彎角段係呈等半徑曲線型態，而由螺桿 杈向觀之，該第-彎角段係呈曲線型態，該第二彎角段係 呈等半從曲線型態’因此，該循環元件組設後，位於其内 的循％路径’其部分的行進路段不與螺桿轴向垂直，因此 該滚動元件順著該猶環路徑的執跡滾動時，得以避免滾動 元件直接撞擊該循環路徑的進出σ轉折處，亦即第一弯角 處與第處’據此，本發明得崎低使用該外循環滾 珠螺桿裝置所造成㈣以及提高_環元件的使用年限。 八其一、由於本發縣_環元件延麵觀徑的輪廓線 为為内、外蓋之結合型態，域循環元件組合於該螺帽後， 其由該螺桿軸向觀之，該内蓋與外蓋係呈上、下組合型能， 因此，該滾動元件在循環元件内滾動時，該循環元件的受 力方向與外制彻方向㈣，使其可承受的力量較大， 1354076 I » * 藉以避免滾動元件撞擊其彎角處而被撐開、損壞。 综上所述，此實施例及圖示僅為本發明之較佳實施例而 已，當不能以之限定本發明實施之範圍，即大凡依本發明申請 翻顧所作之均替倾修飾，皆應屬本發日轉利涵蓋之範 1354076 ί · - 【圖式簡單說明】 第1圖 係為習知具循環元件之滚珠螺桿(一），為美國專利第 . 第2圖 US3,143, 896號專利案其中之一的實施狀態圖。 係為習知具循環元件之滾珠螺桿(二），為美國專利第 US7, 040,189號專利案其中之一的實施狀態圖。 第3圖 係本發明之立體組合圖。 第4圖 係本發明之上視圖。 第5圖 係本發明之循環元件立體分解圖。 第6圖 係本發明之循環元件立體組合圖。 *第7圖 係本發明之循環路徑示意圖，顯示該循環路徑由螺桿 軸向觀之的狀態。 第8圖 係本發明之循環路徑示意圖，顯示該循環路徑由螺桿 徑向觀之的狀態。 ‘ 第9圖 係本發明之循環路徑示意圖，顯示該循環路徑由第7 圖上視觀之的狀悲。 • 9II diameter 151 import and export turning point 152 due to impact caused by the impact, in addition, due to the combination of the left and right pieces of the circulating element 15 after the combination of the nut (not shown) 'plus the cycle The circulation path 151 of the inlet and outlet 15 of the 亓 m 具有 具有 has a point of impact, and therefore, in order to prevent the circulation element 15 from being impacted, the damage of the refractory element 15 is avoided. And the private-type structure set material (4) outside the bead snail device. According to this, how can we develop a kind of outer-June ring ball screw device, which can solve the above-mentioned defects, that is, the motive of the present invention. f invention content] The purpose of P is to provide - an external circulation ball screw skirt, i main design of the object (four) view diameter, so that after the application of the _ ring path forest screw axially vertical, to avoid rolling elements directly hit the path of the Import and export turning point. Another object of the present invention is to provide an outer-circulating ball screw skirt, the vertical shield ring member is divided into an inner and outer cover by the outline of the circulation path, and the _ ring element is combined with the _cap, which is Screw axial direction: r =: r one state - , ring == = contains: according to: = = kind of rolling groove. - _ snail #, its circumference has a wall with $_目' which has the screw through (four) perforation, The perforation hole has a esporting groove, and the rolling groove forms a load path with the rolling groove; a 4 1354076 I \ «« element' has two ends at the second portion and the second leg portion, and the first leg portion and the first leg portion Between the feet, there is a connecting portion 'the first and second leg portions are disposed on the nut; a circulation path is disposed inside the circulating element, and the first leg portion, the connecting portion and the second portion a connecting portion ′ and communicating with the load path, the light-duty end of the έ 循环 cycle has an entry and exit section, a first curved section connecting the incoming and outgoing sections, a second curved section following the first curved section, and the second a connecting section between the curved corner sections, wherein the first curved corner section is viewed from the axial direction of the screw; 1 linear type, and the second curved corner section is screwed Views of the shape-based patterns were constant radius curve; a plurality of rolling elements, which lines the inner Kawasaki ring rolling path to the load path. Further, the present invention is intended to achieve the above objects, and the preferred embodiments are described in detail with reference to the drawings. [Embodiment] - First of all, as shown in the figures 3 to 6, the embodiment of the present invention provides an outer-circulating ball screw device, which is mainly composed of a screw 20, a nut-cycling <7〇 The member 40, the two-turn path 5G, and a plurality of rolling elements are combined, wherein: the screw 20 has a rolling groove 2 at its circumference and has an - axial direction A and a radial direction B. . a snail head 30 having a perforation % for the screw 2 to pass through, the piercing/hole wall having a rolling groove (not shown), the rolling groove and the rolling groove forming a path from the Show). In addition, the second curved corner section 53 of the outer surface of the nut 3 is in an equi-radius curve type regardless of the axial direction A or the radial direction B of the screw 20. A plurality of rolling elements (not shown) are rolled in the load path and the loop path 50. The above description is the structure and configuration description of each main component of the embodiment of the present invention. The embodiments of the present invention can at least achieve the following effects. First, since the present invention designs the corners of the circulation path to be the first angled section and the second angled section, and is viewed from the axial direction of the screw, the first curved section is in a straight line type. The angled section is in the shape of an equal-radius curve, and the first-angled section is in a curved shape, and the second-pointed section is in a curve-shaped shape. Therefore, the cycle After the components are assembled, the part of the path of the path in which the % path is located is not perpendicular to the axis of the screw, so that when the rolling element rolls along the path of the loop, the rolling element is prevented from directly hitting the loop. The entry and exit σ turn of the path, that is, the first corner and the first place, according to the present invention, the present invention uses the outer circulation ball screw device to cause (4) and improve the service life of the _ ring element. Eighth, since the contour line of the extension surface of the county _ ring element is the combination of the inner and outer covers, the domain circulation element is combined with the nut, and the screw is axially viewed from the screw. The cover and the outer cover are combined in the upper and lower sides. Therefore, when the rolling element rolls in the circulating element, the direction of the force of the circulating element and the outer direction (4) make the bearing force greater, 1354076 I » * Expanded and damaged by avoiding rolling elements hitting their corners. In summary, the embodiments and the drawings are only the preferred embodiments of the present invention, and the scope of the present invention cannot be limited thereto, that is, the replacement of the uniforms according to the application of the present invention should be This is the date of this day's transfer of the scope of the 13560076 ί · - [Simple diagram of the diagram] Figure 1 is a conventional ball screw with a cycle element (a), for the US patent. Figure 2 US3,143, 896 An implementation state diagram of one of the patent cases. A ball screw (2) which is a conventional one having a circulation element is an implementation state diagram of one of the patents of U.S. Patent No. 7,040,189. Figure 3 is a perspective assembled view of the present invention. Figure 4 is a top view of the present invention. Fig. 5 is an exploded perspective view of the circulation element of the present invention. Figure 6 is a perspective assembled view of the circulating element of the present invention. * Fig. 7 is a schematic view of the circulation path of the present invention, showing the state in which the circulation path is viewed axially by the screw. Fig. 8 is a schematic view of the circulation path of the present invention, showing the state in which the circulation path is viewed radially by the screw. </ RTI> Figure 9 is a schematic diagram of the cycle path of the present invention, showing that the cycle path is visually obscured by the view on Fig. 7. • 9