1281969 預壓力· ，而且’螺帽的滾珠溝槽研磨上容易，且端塞式螺 立’衰珠循¥迫圈中被以推擠的滾珠不要太多，以避 ^:的阻力倍數遞增的問題；並且各滚珠受負荷區中的 κ珠數不要有較大的差異。 為達成上述之目的，本發明使用一迴流裝置，包含有 兩固^通道崎於螺帽巾央，制迴流通道配合前述之 &塞^^目之滾珠溝槽’使滾珠溝槽形成至少兩個獨立滾 珠循’使螺帽可使用偏位賴方式調㈣帽之預壓 力。 有兩個迴流通道之趣流裝置，於其兩侧可各具 有固I播田螺中目之滾珠溝槽形成的導程較小，其迴流 裝ΐΓ詈二f加工而造成相鄰的溝槽不完整時，可利用 迴流：置=侧之曲面，填補螺帽上不完整之溝槽^ 步瞭解本發明之特徵及技術内容，請參閱 以二月之實施方式說明及圖式，然而此實施方式 及， β及參考用，而非用以對本發明做任何限制 者。 [實施方式】 第一圖是本發明之滾珠蟫 1 ^ X 累桦迴流裝置分解圖；其中滾 珠嫘彳干之螺巾目1套合於螺桿2 μ ^ . ^ ^ <上，稭滾珠3於其間滾動而 產生相對移動，螺帽i内徑上 n 具一滾珠溝槽1 e配合螺桿 2 ,使滚珠3凌動於迴流通道内。 二右— 衰珠螺杯迴抓*置，利用至少-個迴流裝置 4,包含有兩個迴流通道4a_於螺帽i中央之徑向孔 1281969 槽1 c中，迴流裝置4插入徑向孔槽1 c後，其迴流通道 4 a對合於螺帽1之迴流通孔1 a，而螺紋槽4 b對合於 螺帽1之螺紋槽1 b，以利以螺栓（未顯示）穿設其中以 將迴流裝置4和螺帽1固定。於螺帽1兩端面各插設有單 一迴流道的端塞5，以兩端塞5配合一個迴流裝置4及螺 〜 帽1之滾珠溝槽1 e，組合成兩個獨立滾珠循環迴圈，使 滾珠3可分別於其間運動。由於滾珠3可分別於兩個獨立 的滾珠循環迴圈間運動，使可以利用偏位預壓方式調整螺 *帽1之預壓力。 第二A圖至第二C圖為本發明之迴流裝置不同角度之 示意圖；其中第二A圖為迴流裝置元件前視圖，第二B圖 為迴流裝置後視圖，第二C圖為迴流裝置分解圖，此三個 圖示表現出本發明之迴流裝置4外形略呈彎弧狀，迴流裝 置4上設有平順曲面4 c，平順曲面4 c係配合螺帽1之 外徑’使迴流裝置4不凸螺帽1之外徑表面；在迴流裝置 _ 4中包含有兩個迴流通道4 a，迴流通道4 a上設有螺紋 槽4 b，其中之迴流通道4 a係用以使滾珠溝槽1 e和螺 帽1之迴流通孔1 a連通，而螺紋槽4 b則用以固定迴流 裝置4;固定之方式為先將迴流裝置4與螺帽1之徑向孔 槽1 c嵌合’再以螺栓6沿著螺紋槽4 b方向將迴流裝置 4鎖設於螺帽1上（參閱第三圖）。因此，藉由迴流裝置 4兩個迴流通道4 a之引導路徑4 d，可使滾珠3順暢進 入第一圖之螺帽1迴流通孔la中而完成循環。在第二b 圖上’兩迴流通道4 a和滾珠溝槽1 e接續之區域為溝槽 1281969 ^ 4 e ’本發明料使該兩溝槽接口 4 e儘可能的接 預壓時仍有良好的承受負荷能 的、、避免’袞珠/冓槽1 e上有較多的區域是沒有滾珠接觸 的區域，以使在設計偏伋 柄的^於兩’冓槽接口 4 6十分接近，故其兩者間的螺旋路 -的，明顯，而相互呈直線排列。1281969 Pre-pressure ·, and 'the nut groove of the nut is easy to grind, and the end-plug type snails are not too much to push the ball in the forced circle, so as to avoid the resistance multiple of Problem; and the number of κ beads in each load zone is not greatly different. In order to achieve the above object, the present invention uses a reflow device comprising two solid channels, which are in the center of the nut, and the recirculation channel is matched with the aforementioned ball groove to make the ball grooves form at least two. A separate ball can be used to make the nut adjust the pre-pressure of the cap. The flow device with two return channels can have a smaller lead on each side of the ball groove of the solid I snail, and the return groove is processed to cause adjacent grooves. When complete, you can use the reflow: set the surface of the side to fill the incomplete groove on the nut. To understand the features and technical contents of the present invention, please refer to the implementation and description of the embodiment in February, however, this embodiment And , β and reference, and are not intended to limit the invention. [Embodiment] The first figure is an exploded view of the ball 蟫 1 ^ X tired birch reflux device of the present invention; wherein the ball 嫘彳 之 螺 螺 螺 1 2 2 2 2 2 2 秸 秸 秸 秸 秸 秸 秸 秸 秸 秸 秸During the rolling, the relative movement occurs, and the inner diameter of the nut i has a ball groove 1 e fitted with the screw 2 to make the ball 3 move in the return passage. Second right - the faint bead cup back to the handle, using at least one reflow device 4, comprising two return channels 4a_ in the radial hole 1281969 in the center of the nut i, slot 1 c, the reflow device 4 is inserted into the radial hole After the groove 1 c, the return passage 4 a is engaged with the return through hole 1 a of the nut 1 , and the thread groove 4 b is engaged with the thread groove 1 b of the nut 1 to facilitate the passage of a bolt (not shown). Therein, the reflow device 4 and the nut 1 are fixed. An end plug 5 with a single return passage is inserted into each end surface of the nut 1, and the two end plugs 5 are combined with a recirculation device 4 and a ball groove 1 e of the screw cap 1 to be combined into two independent ball circulation loops. The balls 3 are allowed to move therebetween. Since the balls 3 can be moved between the two independent ball circulation loops, the preload of the screw cap 1 can be adjusted by the bias preloading method. 2A to 2C are schematic views of different angles of the reflow device of the present invention; wherein the second A is a front view of the reflow device component, the second B is a rear view of the reflow device, and the second C is a reflow device decomposition. The three diagrams show that the reflow device 4 of the present invention has a slightly curved shape, the reflow device 4 is provided with a smooth curved surface 4 c, and the smooth curved surface 4 c is matched with the outer diameter of the nut 1 to make the reflow device 4 The outer diameter surface of the nut 1 is not protruded; two return channels 4 a are included in the reflow device 4, and the return channel 4 a is provided with a thread groove 4 b, wherein the return channel 4 a is used to make the ball groove 1 e is connected to the return through hole 1 a of the nut 1 , and the thread groove 4 b is used to fix the reflow device 4; the fixing method is to first fit the reflow device 4 with the radial hole 1 c of the nut 1 The reflow device 4 is then locked to the nut 1 by bolts 6 in the direction of the thread groove 4b (see the third figure). Therefore, by the guide path 4 d of the two return passages 4 a of the reflow device 4, the balls 3 can be smoothly fed into the return hole la of the nut 1 of the first figure to complete the circulation. In the second b diagram, the area where the two return channels 4 a and the ball grooves 1 e are connected is the groove 1281969 ^ 4 e 'the material of the present invention is still good when the two groove interfaces 4 e are connected as much as possible. The load-bearing energy can be avoided, and there are more areas on the bead/groove 1 e that are not in contact with the ball, so that the design of the partial shank is very close to the two 'groove interface 44 6 The spiral path between the two is obvious and aligned with each other.
四A圖為本發明之趣流裝置具有填補螺帽溝槽示意 二而第四B圖為本發明之迴流裝置兩側具有溝槽曲面示 ^圖’圖中顯示上述具有兩個迴流通道4 ^之迴流裝置 4 ’於兩侧可各具有一個溝槽曲面4 e ;當螺帽1之滾珠 溝槽1 e形成較小的導程，因迴流裝置的加工而造成相鄰 的溝槽1 e不完整時，可利用迴流裝置4的兩侧溝槽曲面 4 e ’填補螺帽1上不完整之溝槽1 e。 弟五圖為本發明之實施例不意圖，偏位預壓調整方 式’需將螺帽1之滾珠溝槽1 e，分為至少兩個獨立滾珠 循環迴圈，而兩個獨立滾珠循環迴圈間可以有一相對的偏 移’圖中之右侧陰影標示的滚珠3和左侧無陰影標示的滾 珠係分屬獨立滾珠循環迴圈，故此兩者間可使用偏位預壓 方式’使其間產生預壓力，提高螺帽之剛性。 第六圖為本發明之另一實施例示意圖；係使螺帽1有 較大長度的情況，而可以利用兩個迴流裝置4來達到在螺 帽1形成多（三）個滾珠循環迴圈的目的。 综上所述，本發明之滚珠螺桿之迴流裝置，可大量提 供產業利用且對產#難高，且其未見於任何公 開文件或展覽會上’故應已充分符合斬穎性及進步性之法 1281969 定專利要件，爰依法提出申請，懇請貴局核准本件發明專 利申請案，以勵創作，至感德便。 【圖式簡單說明】 第一圖為本發明之滾珠螺桿迴流裝置分解圖 第二A圖為本發明之迴流裝置前視圖 第二B圖為本發明之迴流裝置後視圖 第二C圖為本發明之迴流裝置分解圖 • 第三圖為本發明之滾珠螺桿迴流裝置組合圖 第四A圖為本發明之迴流裝置具有填補螺帽溝槽示意圖 第四B圖為本發明之迴流裝置兩側具有溝槽曲面示意圖 第五圖為本發明之實施例示意圖 第六圖為本發明之另一實施例示意圖 第七圖為傳統之滾珠螺桿迴流裝置示意圖 第七A圖為傳統之滾珠螺桿偏位預壓示意圖 【主要元件符號說明】 1 螺帽 1 a 迴流通孔 lb 螺紋槽 1 c 徑向孔槽 1 e 滾珠溝槽 2 螺桿 3 滾珠 4 迴流裝置 4 a 迴流通道 4 螺紋槽 4 c 平順曲面 4 d 引導路徑 4 e 溝槽曲面The four-A diagram is the interesting flow device of the invention having the filling nut groove schematic two and the fourth B-picture is the reflow device of the present invention having the groove surface on both sides. The figure shows that the above has two recirculation channels 4 ^ The reflow device 4' can have a groove curved surface 4e on both sides; when the ball groove 1e of the nut 1 forms a small lead, the adjacent groove 1e is not processed by the processing of the reflow device. When complete, the groove 1 e ' on both sides of the reflow device 4 can be used to fill the incomplete groove 1 e on the nut 1 . The fifth figure of the present invention is not intended to be an embodiment of the present invention. The offset pre-pressure adjustment mode 'is required to divide the ball groove 1 e of the nut 1 into at least two independent ball circulation loops, and two independent ball circulation loops. There can be a relative offset between the two sides. The ball 3 marked on the right side of the figure and the ball line marked on the left side are divided into independent ball circulation loops. Therefore, the offset preloading method can be used to generate Pre-stress to increase the rigidity of the nut. The sixth figure is a schematic view of another embodiment of the present invention; the nut 1 has a large length, and the two reflow devices 4 can be used to form a plurality of (three) ball circulation loops in the nut 1. purpose. In summary, the ball screw reflow device of the present invention can provide a large amount of industrial utilization and is difficult to produce, and it is not found in any public documents or exhibitions, so it should be fully consistent with the advantages and progress. Act 1281969 to determine the patent requirements, 提出 apply in accordance with the law, I ask you to approve the application for this invention patent, to encourage creation, to the sense of virtue. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is an exploded view of the ball screw reflow device of the present invention. The second A is a front view of the reflow device of the present invention. The second B is a rear view of the reflow device of the present invention. FIG. 4 is a schematic view of the ball screw reflow device of the present invention. FIG. 4A is a schematic view of the reflow device of the present invention having a groove for filling a nut. FIG. 4B is a view showing a groove on both sides of the reflow device of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 5 is a schematic view of an embodiment of the present invention. FIG. 6 is a schematic view showing another embodiment of the present invention. FIG. 7 is a schematic view of a conventional ball screw reflow device. FIG. 7A is a schematic diagram of a conventional ball screw bias preloading. [Main component symbol description] 1 Nut 1 a Back flow hole lb Thread groove 1 c Radial hole groove 1 e Ball groove 2 Screw 3 Ball 4 Reflow device 4 a Return channel 4 Thread groove 4 c Smooth surface 4 d Guide path 4 e groove surface