1262264 九、發明說明： 【發明所屬之技術領域】 製造之滾珠螺桿冷 本發明係具有充份的強度，且容易 部特別技術。 【先前技術】 螺桿傳動結構係一種利用螺桿及螺帽做共軛運動，以 達成機械運動傳遞之目的，現今以滾珠中介於螺桿及螺帽 鲁之滚珠螺桿組’係效率及精密度最佳的傳動結構，可是在 傳動的過程中—定會產生熱，輕則會影響到傳動之精^ 度’重則會損及運作之順暢性，是以，現今滾珠螺射在 螺中目或螺桿設置循環冷卻路徑，用以達到降溫之作用。 具體而言’我國公告第1230232號『具冷卻通道之滚 珠螺桿』前案，係揭示-種於螺帽端面間隔設置若干輛向 貫穿之流道，然後再以前、蓋封閉螺帽兩端，以使該等流 ♦道形成-可供冷卻劑進出之循環路徑，據以達到預期降溫L 之要求。 可是其螺帽貫穿流道之加工，須在螺帽具有相當厚度 下，以及配合特定深孔鑽削之刀具才能進行，其整體加工 相當浪費材料，且製造成本又不能有效降低，除此之外， 該等貫穿流道並無法直接針對發熱源去做冷卻，所謂的發 熱源也就是滾珠和螺帽接觸的軌道，是以其熱交換效率和 加工成本並不能成正比，誠有再改進之必要。 1262264 有4a狖此，本發明人乃以多年的專業經驗與心得，經 不斷構思、創研，乃研發出本發明，用以改善上述之技術 問題點。 【發明内容】 本發明主要係於螺帽外周設有螺旋槽道，然後以套筒 套固於此螺帽外周，使位於螺帽和套筒間之槽道形成可供 冷部劑流經之冷卻循環路徑，該等螺旋槽道可以輕易的加 •工出來’並可大大減少無效之切削產生，所以整體製造成 本遠較公告第1230232號更為降低，除此之外，其槽道設 置成和螺帽内螺紋相對應且鄰接時，如此便能特別針對發 熱源去進行熱交換，據以提供滚珠螺桿良好之冷卻作用。 曰再則，其套筒另設有迴流孔，該迴流⑽專供螺帽與 螺杯間之滾珠循環’以使該滾珠得於套筒冷卻，有效增進 滾珠之壽命及精度，確實為滾珠螺桿提出—有粒 • 穎技術。 啊 為使貝審查委員能進—步瞭解本發明之結構，特徵 及其他目的’ _以較佳實施例之圖式詳細說明如后： 【實施方式】 清參閱圖-至七所示，本發明包括有： -螺桿（1 Q )，其外徑具有螺旋狀之螺紋溝（^ ); 螺巾目（2 0 )’係具有一可供螺桿（1 〇 )穿入之 1262264 内孔，該内孔中設有與螺桿（丄〇 )螺紋溝 應之内螺紋（2 1 );及 多數之滾珠（3 〇 )，係保持於前述螺桿（丄〇 )之 螺紋溝（1 1 )及螺帽（2 〇)之内螺紋（2工）間，使 螺帽（2 ◦)㈣桿（1 Q )間可被相互轉動； 其特徵在於：於螺帽（2 0)外周設有螺旋槽道 (2 2 )，如圖六所示，該槽道（2 2 )與内螺紋（2工） 係呈上下對應，然後以套筒（4 0)内孔（4丄）套固於 此螺帽（2 0)外周，使位於螺帽（2 0)和套筒（4 〇 ) 間之槽迢（2 2)形成可供冷卻劑流經之冷卻循環路卜 該等螺旋槽道（2 2 )可以輕易的加工出來，並可大域 少無效之切削產生，令整體製造成本遠較公告第123〇232 號更為降低，更重要的是，該冷卻循環路徑係特別針對發 熱源去進行熱交換，所以可喊供滾珠螺桿良好之冷卻作 用0 山刖述螺疑槽這（2 2)兩端並未直接貫通螺帽（2 〇 ^ 兩端’而是於螺帽（2 0 )兩端面分別設有注人孔（2 3 )、 流出孔（24)，此注入孔（23)、流出孔（24)係外 接冷卻機，使冷卻機能驅使冷卻劑由注入孔（2 3 )進入， 而由流出孔（24)導出，以形成-強制猶環冷卻之熱交 換方式； 1262264 套湾（4 Ο )固定於螺帽（2 〇)的 螺帽（2 〇 ) nne认 式主要是在 另端則等分的貫穿螺設有:套问（4〇) 並螺合於蟫帽（2ίη冰田 检（42) 系中目（2 0)外周’如此便 定於螺帽⑴)上;而為了防此=固 本發明螺帽（2 〇 )外网4± 丨礼曳路之可能， 卜周特別於螺紋槽道（2 2 側，分別凹設有組裝槽兩&外 防漏墊圈（5 〇)按壯，、亡& &且衣槽（2 6)可供 盥套筒（ 衣，以有效防止冷卻劑由螺帽（2 0) 备同（4 〇 )間之隙縫洩露。 =，本發明另於螺帽（2〇)、套筒（4〇)間設 有仏滾珠（3 0)迴流之路徑，苴 套筒（40) 一端面八幻-主要在螺帽（20)、 ；螭面分別凹設有缺槽（2 7)(4 31262264 IX. Description of the invention: [Technical field to which the invention pertains] Ball screw cold manufactured The present invention has sufficient strength and is particularly easy to use. [Prior Art] The screw transmission structure is a kind of conjugate movement using a screw and a nut to achieve the purpose of mechanical motion transmission. Nowadays, the ball screw and the nut of the screw are the best in the efficiency and precision of the ball screw group. Transmission structure, but in the process of transmission - will produce heat, light will affect the precision of the transmission 'heavy' will damage the smoothness of the operation, so that today's ball screw in the screw or screw set cycle The cooling path is used to achieve the effect of cooling. Specifically, 'China's Announcement No. 1230232, "Ball Screw with Cooling Channel", reveals that several kinds of flow passages are arranged at intervals on the end face of the nut, and then the ends of the nut are closed before and after the cover. The flow is formed to provide a circulation path for the coolant to enter and exit, thereby achieving the desired temperature drop L. However, the processing of the nut through the flow path must be carried out under the considerable thickness of the nut and the tool for drilling with a specific deep hole. The overall processing is quite wasteful of materials, and the manufacturing cost cannot be effectively reduced. These through-flow channels are not able to directly cool the heat source. The so-called heat source is the track in which the ball and the nut contact, so the heat exchange efficiency and the processing cost cannot be directly proportional, and it is necessary to improve it. . 1262264 There are 4a. Therefore, the inventors have developed the present invention with many years of professional experience and experience, and have been continually conceived and researched to improve the above technical problems. SUMMARY OF THE INVENTION The present invention mainly provides a spiral channel on the outer circumference of the nut, and then sleeves the outer circumference of the nut with a sleeve, so that a channel between the nut and the sleeve forms a cold portion through which the cold agent flows. Cooling circulation path, these spiral channels can be easily added and manufactured' and can greatly reduce the ineffective cutting, so the overall manufacturing cost is much lower than the announcement No. 1230232, in addition, the channel is set to When corresponding to the internal threads of the nut and adjacent, the heat exchange can be performed specifically for the heat source, thereby providing a good cooling effect of the ball screw. Further, the sleeve is further provided with a return hole, and the reflow (10) is specially designed for the ball circulation between the nut and the screw cup to make the ball cool by the sleeve, thereby effectively improving the life and accuracy of the ball, and is indeed a ball screw. Proposed - there are particles • Ying technology. The structure, features and other objects of the present invention will be described in detail in the following description of the preferred embodiments of the present invention: [Embodiment] Referring to Figures --7, the present invention The utility model comprises: a screw (1 Q ) having an outer diameter with a spiral thread groove (^); the screw head (20) is provided with a 1262264 inner hole through which the screw (1 〇) can be inserted. The internal thread (2 1 ) of the threaded groove of the screw (丄〇) is provided in the hole; and the majority of the ball (3 〇) is held by the thread groove (1 1 ) and the nut of the screw (丄〇). Between the internal threads (2 working) of the 〇), the nut (2 ◦) (4) rods (1 Q ) can be rotated between each other; the characteristic is that a spiral groove is provided on the outer circumference of the nut (20) (2) 2), as shown in Figure 6, the channel (2 2 ) and the internal thread (2 work) are up and down, and then the sleeve (40) inner hole (4 丄) is sleeved on the nut (2 0) The outer circumference makes the groove (2 2) between the nut (20) and the sleeve (4 )) form a cooling circulation path through which the coolant flows. The spiral channels (2 2 ) can be easily Processed out It can produce a large number of ineffective cuttings, which makes the overall manufacturing cost much lower than the announcement No. 123〇232. More importantly, the cooling cycle is specially designed for heat exchange, so it can be called for the ball screw. Good cooling effect 0 The mountain snail suspicion groove (2 2) The two ends do not directly penetrate the nut (2 〇 ^ both ends 'but on the two ends of the nut (2 0 ) respectively, there are injection holes (2 3), the outflow hole (24), the injection hole (23), the outflow hole (24) is externally connected to the cooler, so that the cooling device can drive the coolant to enter from the injection hole (23) and be led out by the outflow hole (24). To form a heat exchange method for the forced cooling of the helium ring; 1262264 sets of bays (4 Ο) nuts (2 〇) fixed to the nut (2 〇) nne recognition type is mainly provided at the other end of the sec. : Set the question (4〇) and screw it into the skull cap (2ίη冰田检(42) is in the middle of the head (20), so it is set on the nut (1)); in order to prevent this = solid invention nut (2 〇) 4± 外 曳 曳 曳 之 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别 特别The washer (5 〇) is strong, dead && and the trough (2 6) is available for the 盥 sleeve (cloth to effectively prevent the coolant from being filled by the nut (2 0) (4 〇) Leakage. =, the present invention is provided with a ball (30) reflow path between the nut (2〇) and the sleeve (4〇), and the 苴 sleeve (40) has an end face of eight illusions - mainly in the nut ( 20), ; the face is recessed with a notch (2 7) (4 3
= (20)另端面亦設有該缺槽（27)，此缺槽Q (4 3 )❹難端塞（6 0)縣，域端塞（6 ^通内螺紋（21)，而套筒（40)及螺帽（2〇) 在知基（6 〇 )外端緣位置逹通有迴流孔（4 4 )( 2 8 )， 使该端塞（6 〇 )、i回、、六了丨γ /1 /(、/ 坡（4 4 ) ( 2 8)形成可供螺帽 、⑸1 〇 )間之滾珠（3 〇 )密閉循環路徑， 乂使4不又作用力之滾珠（3 〇)得於套筒（4 〇)遲滯 時間的進行冷卻，俾能增進滾珠（3 0)之使用壽命，使 1262264 維持既有精度下，重覆的提供相對内螺 及螺紋溝（1 1 )中介傳動。 :請配合圖讀之，其係本發明第二實施例，該實施 要况明本發明螺帽（2〇)外周螺旋槽道（22)可 =内=(2 1 )錯開設置’此種實施方式雖可改善圖六 =(22)、内螺紋（21)間厚度Μ之結構問題， =熱交換效果會稱降低，惟仍優於習用公告第⑵㈣號 案0 綜上所述，本發明確能提升滾珠螺桿之熱交換效能， 且有效增進製造之經濟性，深具有產f上之彻性及進+ 性’其在同類產品中均未見有類似之產品或發表而具㈣ 頭性n*理念上的高度發明，應符發明專利申請要 件’爰依法提出申請。惟以上所述者，僅為本發明之一較 佳實施例而已，當不能以之限定本發明實施之範圍，即= 凡依本發明申料職s所作之均#變化與料，皆應仍 屬本發明涵盖之範圍内。 * 1262264 【圖式簡單說明】 ，圖一·係本發明組合之實施例示意圖。 .圖—·係本發明螺帽及套筒之分解示意圖。 圖三：係本發明螺帽另—方向之立體示意圖。 圖四.係本發明套筒旋轉180度之立體示意圖。 圖係本电明螺帽及套筒組合之實施例示意圖。 圖六：係本發明螺帽及套筒組合之剖面示意圖。 >圖七係、本發明滾珠迴流循環之動作示意圖。 圖八：係本發明螺帽之第二實施例示意圖。 (1 1 )螺紋溝 (2 1 )内螺紋 (2 3 )注入孔 (2 5 )法蘭 (2 7 )缺槽 (4 1 )内孔 (4 3)缺槽 (6 〇)端塞 【主要元件符號說明 (10)螺桿 (2 0)螺帽 (2 2)槽道 (2 4)流出孔 B (2 6)組裝槽 (2 8)迴流孔 (3 0)滾珠 (4 0)套筒 (4 2)螺栓 (4 4)迴流孔 (5 0)防漏墊圈 10= (20) The other end face is also provided with the missing slot (27), this missing slot Q (4 3 ) is difficult to end plug (60) county, domain end plug (6 ^ through internal thread (21), and sleeve (40) and the nut (2〇) at the outer edge of the base (6 〇), there is a return hole (4 4 ) ( 2 8 ), so that the end plug (6 〇), i back, and six丨γ /1 /(, / Slope (4 4 ) ( 2 8) forms a ball (3 〇) closed circulation path for the nut, (5)1 〇), and makes the ball 4 (3 〇) It can be cooled by the sleeve (4 〇) hysteresis time, which can improve the service life of the ball (30), so that the 1262264 maintains the existing precision, and provides the intermediate drive with the relative internal screw and thread groove (1 1 ). Please refer to the figure for reading, which is a second embodiment of the present invention, which shows that the outer spiral groove (22) of the nut (2〇) of the present invention can be = inner = (2 1 ) staggered and set Although the embodiment can improve the structural problem of the thickness Μ between the figure (=) and the internal thread (21), the heat exchange effect will be reduced, but it is still better than the case of the public notice (2) (4). Clearly improve the heat exchange performance of the ball screw, and Effectively improve the economics of manufacturing, and have a deep understanding of the nature of production and the nature of 'products'. There is no similar product in the same kind of products or published. (4) Highly invented in the concept of head n*, should be invented The patent application requirements are not required to be applied in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, according to the application of the present invention. All of the changes and materials are still within the scope of the present invention. * 1262264 [Simple description of the drawings], Figure 1 is a schematic diagram of an embodiment of the combination of the present invention. Figure - is the nut and sleeve of the present invention Fig. 3 is a perspective view showing the other direction of the nut of the present invention. Fig. 4 is a perspective view showing the embodiment of the present invention. Figure 6 is a schematic cross-sectional view showing the combination of the nut and the sleeve of the present invention. Fig. 7 is a schematic view showing the action of the ball recirculation cycle of the present invention. Fig. 8 is a schematic view showing a second embodiment of the nut of the present invention. (1 1 ) Threaded groove (2 1 ) internal thread (2 3 ) Injection hole (2 5 ) Flange (2 7 ) Notched (4 1 ) Inner hole (4 3) Notched (6 〇) end plug [Main component symbol description (10) Screw (2 0) Nut (2 2) Channel (2 4) Outflow hole B (2 6) Assembly groove (2 8) Return hole (3 0) Ball (40) Sleeve (4 2) Bolt (4 4) Return hole (5 0) Leaking washer 10