201122278 、發明說明： 【發明所屬之技術領域】 本發明係為-種線性傳動元件，尤指一種具保養 功能之滚珠螺桿。 【先前技術】 按，滾珠螺桿主要由-螺帽透過自由滾動之滾珠 與螺桿轴螺合所組成，並利用自由滾動的滾珠使螺帽 與螺桿轴相對滑移，由於其具有絕佳的順暢性與精準 度，故被廣泛的運用於各種需要精密移動的機具上， 例如各類微細加工或半導體製程設備上，因此螺旋軌 道上的濁滑是相當重要的。但是如果滾珠螺桿長時間 缺乏潤滑，可能造成螺帽和螺桿間之摩擦加大而加速 滾珠螺桿之磨耗。 而為有效降低滾珠螺桿因摩擦所產生的磨耗，傳 統滾珠螺桿之_系統可分成兩種·· 第種係由外部的潤滑系統藉由油管將潤滑脂 入螺帽與螺桿之間，藉 错由潤滑脂黏度較高的特 α脂的形成是在潤滑油中^^秘细杰r 、法織,曲 巾加增故才會使潤滑 油變》辰稠而成形潤滑脂） 7/^)’才料潤相賴保持在螺 中目内部，以達到潤湣 月的功效’但在使用-段時間後潤 '月脂中的潤滑油會消乾，伯、两界收士 仁潤β恥中的増祠劑仍會殘 3 [S ) 201122278 累托内邛’因此如無將舊的潤滑脂排出螺帽外 而又再庄入新的潤滑脂，就會使潤滑脂中的增祠 研累積在螺帽内部，造成散熱不易，且容易造 - 系統長時間處於待機 ^ 能源浪費。 風 第二種係於螺帽端部裝設為固體潤滑，該固體潤 滑劍直接與螺桿表面接觸來潤滑螺桿之螺紋道，以提 ·#滾珠螺桿的潤滑，但固體潤滑劑產生的潤滑效果較 差有時無法充分潤滑而造成滾珠螺桿損壞，且無 除螺帽内部累積的潤滑劑，容易產生熱累積的現象， 影響滾珠螺桿的運作狀況。 /Τ σ則述^知的潤滑方式都是持續增加潤滑油 (脂）而無法將舊的潤滑油（脂）排出，故會大幅降 低濁滑效果，而降低滾珠螺桿的精度及縮短壽命，故 _ 仍有精進的必要。 【發明内容】 基於上述習知技術之問題點，本發明人經過研究 改良後，終有確能達成以下發明之目的之發明誕生。 即’本發明首要目的在於，研發一種滾珠螺桿裝 設於機台後，仍可於不拆卸滾珠螺桿的情形下清洗螺 帽内部’以將螺帽内部的雜質排出’再注入新的保養 4 [S] 201122278 液（包含：清潔液、潤滑油及潤滑脂等）。 為達上述之目的，本發明係為一種具保養功能之 滾珠螺桿，係包含： - 一螺桿，外型係為一長條狀，該螺桿於外徑區分 有負荷區及保養區，該負荷區設有螺旋狀之滾動溝， 該保養區設有螺旋狀之定位牙，該定位牙係與該滾動 溝銜接，且該保養區外徑係小於該負荷區之外徑，另 • 該螺桿之一端面設有一軸方向之盲孔，另於該保養區 没有複數個與該盲孔連通之通孔，且該盲孔内徑係小 於該滾動溝根徑及定位牙根徑； 一螺帽，係具有一供該螺桿穿設之穿孔，且該螺 帽係相對於該螺桿作往復運行，該螺帽設有相對該滾 動溝及定位牙之滾動槽，該滾動溝及滾動槽係構成一 負荷路徑，該負荷路徑係設有複數個滾動件； • 迴流元件，係設置於該螺帽’該迴流元件設有一 迴流道’該迴流道係提供該滾動件循環用。 其中，當該螺帽運行至保養區時該滾動件定位牙 、 係提供定位複數個該滾動件之功能。 其中，該盲孔係與一保養系統連接，該保養系統 係提供保養液輸入該盲孔’而該保養液再由該通孔噴 射出。 201122278 為了更進一部瞭解本發明之特徵及技術内容，請 參閱以下有關本發明之實施方式說明及圖式，然而此 實施方式及圖式僅供說明及參考用，而非用以對本發 明做任何限制者。 【實施方式】 請參閱第一圖至第六圖所示，本發明係為一種具 保養功能之滾珠螺桿，係包含： 一螺桿1，外型係為一長條狀，該螺桿丄於外徑 區分有負荷區1 1及保養區12，該負荷區11設有 螺旋狀之滚動溝i i i，該保養區i 2設有螺旋狀之 定位牙1 2 1，該定位牙χ 2 ；l係與該滾動溝丄工工 銜接，且該保養區外徑D 2係小於該負荷區1 1之外 徑D1，另該螺桿1之一端面14設有一軸方向之盲 孔1 5，另於該保養區1 2設有複數個與該盲孔工5 連通之通孔1 4，且該盲孔内徑D 5係小於該滾動溝 根徑D3及定位牙根徑〇4; 一螺帽2，係具有一供該螺桿丄穿設之穿孔2 1，且該螺帽2係相對於該螺桿1作往復運行，該螺 帽2設有相對該滚動溝11;L及定位牙121之滚動 槽2 1，該滚動溝1 1 1及滚動槽2 1係構成一負荷 路徑，該負荷路徑係設有複數個滾動件7 ,· [S] 6 201122278 迴流元件（未顯示），係設置於該螺帽2，該迴流 元件設有一迴流道（未顯示）’該迴流道係提供該滾動 件7循環用。 再者，請參閱第四圖至第七圖所示，當該滚珠螺 桿裝設於機台後，該螺桿1兩端係各設有複數個轴承 4支撐該螺桿1，使該螺桿丄為懸空狀態，且異於該 盲孔1 5設置的一端係設有一動力源6，該動力源6 係藉由一聯軸器5與該螺桿1端部連接，該動力源6 係提供一旋轉之動力使該螺桿1旋轉進而帶動該螺帽 2作往復的直線運動，該螺帽2係與一工作平台3結 合，並帶動該工作平台3作往復的直線運動。 接著，請參閱第六圖所示，該盲孔^ 5係與外部 之保養系統（未顯示）連接，該保養系統係提供保養 液Q (該保養液包含：清潔液、潤滑油及潤滑脂等） 輸入F該盲孔1 5，而該保養液q再由該通孔i 3喷 射出；當滾珠螺桿運行一段時間後，係藉由動力源6 驅動螺桿1將該螺帽2移至該保養區1 2，使該通孔 1 3係相對該螺帽2之穿孔2 1，而藉由該通孔工3 喷射出大量的保養液q (係指清潔液）清洗螺帽2之 穿孔2 1後（亦可由保養系統調整保養液〇的流速來 增加保養液Q對於該螺帽2之穿孔2 i的沖洗能 [Si 7 201122278 力）’使異物及舊的潤滑油（脂）因大量的保養液的沖 洗而由螺帽2的兩端排出X，或者’於該螺帽2上設 置一排出孔2 2 ’該排出孔2 2係貫穿該滾動件7不 運行之滚動槽2 1 1並與該穿孔2 1連通，讓異物及 舊的潤滑油（脂）由排出孔2 2排出X，使該螺帽2 之穿孔2 1更為清潔。另外，因保養區外徑D 2較負 荷區外徑D 1小，故增加了穿孔2 1内緣與保養區外 徑D 2的空間，也讓保養液(^流動的空間增加，相對 也使異物及舊的潤滑油（脂）較容易排出螺帽2外部。 最後，請參閱第七圖所示，經過清洗螺帽之穿孔 的步驟後，再藉由保養系統將新的保養液Q (係指潤 滑油或潤滑脂）由盲孔i 5輸入！^後，再由通孔工3 喷射塗抹於螺帽2之穿孔2 1，使整個穿孔2 1與螺 桿1之間充滿保養液Q，讓滾珠螺桿得到充分的潤 滑，如此一來，即可改善習知技術的問題點，以保持 滾珠螺桿的運行精度及延長使用壽命。 綜所上述，所以本發明之『具有產業之可利用性』 應已毋庸置疑’除此之外，在本案實施例所揭露出的 特徵技術，於申請之前並未曾見於諸刊物，亦未曾被 公開使用，不但具有如上所述功效增進之事實，更具 201122278 便 有不可輕忽的附加功效，是故’本發明的『新親性』 以及『進步性』都已符合專利法規，妻依法提出發明 專利之中請，祈請舒審查並早日賜准專利，實感德 以上所述實施例之揭示係用以說明本發明，並非 用以限制本發明，故舉凡數值之變化與等效^件之置 換，仍應隸屬本發明之範_。201122278, invention description: TECHNICAL FIELD OF THE INVENTION The present invention is a linear transmission element, and more particularly a ball screw having a maintenance function. [Prior Art] According to the pressing, the ball screw is mainly composed of a nut that is screwed through the free rolling ball and the screw shaft, and the nut is smoothly slipped by the free rolling ball, because of its excellent smoothness. With precision, it is widely used in various tools that require precise movement, such as various types of micro-machining or semiconductor processing equipment, so the turbidity on the spiral track is very important. However, if the ball screw lacks lubrication for a long time, the friction between the nut and the screw may increase to accelerate the wear of the ball screw. In order to effectively reduce the wear of the ball screw due to friction, the conventional ball screw system can be divided into two types. The first type is made by an external lubrication system. The oil is used to connect the grease between the nut and the screw. The formation of special alpha grease with high grease viscosity is in the lubricating oil. ^^秘细杰r, weaving, the addition of the curved towel will make the lubricating oil change "chen thick and form grease" 7/^)' It is only necessary to keep it in the interior of the snail to achieve the effect of moisturizing the moon. 'But after using - the time, the lubricating oil in the lunar fat will dry out, and the two circles will take it. The tincture will still be 3 [S ) 201122278 Tito 邛 邛 ' Therefore, if the old grease is not discharged from the nut and then re-inserted with new grease, it will increase the accumulation of grease Inside the nut, it is difficult to dissipate heat, and it is easy to make - the system is in standby for a long time. The second type of wind is installed at the end of the nut as solid lubrication. The solid lubrication sword directly contacts the surface of the screw to lubricate the thread of the screw to lubricate the ball screw, but the lubricating effect of the solid lubricant is poor. Sometimes it is not possible to fully lubricate the ball screw, and there is no lubricant accumulated inside the nut, which is prone to heat accumulation and affects the operation of the ball screw. /Τ σ says that the lubrication method is to continuously increase the lubricating oil (fat) and not to discharge the old lubricating oil (fat), so the turbidity effect will be greatly reduced, and the accuracy of the ball screw and the shortening of the life will be reduced. _ There is still a need for improvement. SUMMARY OF THE INVENTION Based on the problems of the above-described conventional techniques, the inventors of the present invention have succeeded in research and improvement, and the invention of the following inventions can be finally achieved. That is, the primary objective of the present invention is to develop a ball screw that is installed on the machine and still clean the inside of the nut without disassembling the ball screw to discharge the impurities inside the nut and reinject the new maintenance 4 [ S] 201122278 Liquid (including: cleaning fluid, lubricating oil and grease, etc.). In order to achieve the above object, the present invention is a ball screw with a maintenance function, comprising: - a screw, the outer shape is a long strip, the screw has a load zone and a maintenance zone at an outer diameter, the load zone a spiral rolling groove is provided, the maintenance area is provided with a spiral positioning tooth, the positioning tooth is engaged with the rolling groove, and the outer diameter of the maintenance area is smaller than the outer diameter of the load area, and another one of the screw The end surface is provided with a blind hole in the axial direction, and the maintenance area does not have a plurality of through holes communicating with the blind hole, and the inner diameter of the blind hole is smaller than the diameter of the rolling groove and the root diameter of the positioning; a through hole for the screw, and the nut reciprocates relative to the screw, the nut is provided with a rolling groove relative to the rolling groove and the positioning tooth, and the rolling groove and the rolling groove form a load path. The load path is provided with a plurality of rolling elements; • a reflow element is disposed on the nut 'the reflow element is provided with a return flow path' for providing the rolling element for circulation. Wherein, when the nut runs to the maintenance area, the rolling member positions the teeth, and provides the function of positioning a plurality of the rolling elements. Wherein the blind hole is connected to a maintenance system that supplies maintenance fluid to the blind hole and the maintenance fluid is ejected from the through hole. 201122278 For a better understanding of the features and technical aspects of the present invention, reference should be made to the following description of the embodiments of the invention. Limiter. [Embodiment] Referring to the first to sixth figures, the present invention is a ball screw with a maintenance function, comprising: a screw 1, the outer shape is a long strip, and the screw is bent on the outer diameter. Distinguishing between the load zone 1 1 and the maintenance zone 12, the load zone 11 is provided with a spiral rolling groove iii, the maintenance zone i 2 is provided with a helical positioning tooth 1 2 1, the positioning gum 2; The rolling groove is joined by a worker, and the outer diameter D 2 of the maintenance area is smaller than the outer diameter D1 of the load area 11 , and the end surface 14 of the screw 1 is provided with a blind hole 15 in the axial direction, and the maintenance is performed. The area 1 2 is provided with a plurality of through holes 14 communicating with the blind hole 5, and the inner diameter D 5 of the blind hole is smaller than the root diameter D3 of the rolling groove and the positioning root diameter 〇4; a through hole 2 1 for the screw boring, and the nut 2 reciprocates relative to the screw 1 , the nut 2 is provided with a rolling groove 2 opposite to the rolling groove 11; L and the positioning tooth 121 1, the rolling groove 1 1 1 and the rolling groove 2 1 constitute a load path, the load path is provided with a plurality of rolling elements 7, · [S] 6 201122278 reflow element (not shown), 2 is disposed on the nut, the circulating element is provided with a return path (not shown) 'the return path system provided with the rolling member 7 cycles. Furthermore, referring to the fourth to seventh figures, when the ball screw is mounted on the machine table, the two ends of the screw 1 are respectively provided with a plurality of bearings 4 for supporting the screw 1, so that the screw 丄 is suspended. a power source 6 is disposed at one end of the blind hole 15 , and the power source 6 is connected to the end of the screw 1 by a coupling 5 , and the power source 6 provides a rotating power Rotating the screw 1 to drive the nut 2 to reciprocate linear motion, the nut 2 is coupled with a working platform 3, and drives the working platform 3 to reciprocate linear motion. Next, as shown in the sixth figure, the blind hole is connected to an external maintenance system (not shown) which provides maintenance fluid Q (the maintenance fluid contains: cleaning fluid, lubricating oil and grease, etc.) Entering the blind hole 15 5, and the maintenance liquid q is ejected from the through hole i 3; when the ball screw is operated for a period of time, the nut 2 is driven by the power source 6 to move the nut 2 to the maintenance The region 1 2 is such that the through hole 13 is opposite to the through hole 2 of the nut 2, and the through hole 3 ejects a large amount of maintenance liquid q (referred to as a cleaning liquid) to clean the perforation 2 of the nut 2 After the maintenance system can also adjust the flow rate of the maintenance liquid 来 to increase the maintenance liquid Q for the piercing 2 i of the nut 2 [Si 7 201122278 force] to make foreign matter and old lubricant (fat) due to a large number of maintenance The liquid is flushed to discharge X from both ends of the nut 2, or 'the nut 2 is provided with a discharge hole 2 2 '. The discharge hole 2 2 is passed through the rolling groove 2 1 1 where the rolling member 7 does not run. Connected with the perforation 2 1 to allow the foreign matter and the old lubricating oil (fat) to be discharged from the discharge hole 2 2 to make the perforation 2 1 of the nut 2 more Jie. In addition, since the outer diameter D 2 of the maintenance area is smaller than the outer diameter D 1 of the load area, the space between the inner edge of the perforation 21 and the outer diameter D 2 of the maintenance area is increased, and the maintenance fluid (the flow space of the control liquid is increased, and the relative space is also increased. Foreign matter and old lubricating oil (fat) are easier to discharge outside the nut 2. Finally, refer to the procedure in Figure 7, after the step of piercing the cleaning nut, and then the new maintenance fluid Q by the maintenance system. Refers to the lubricating oil or grease) by the blind hole i 5 input ^^, and then sprayed by the through hole 3 to the perforation 2 of the nut 2, so that the entire perforation 2 1 and the screw 1 are filled with the maintenance liquid Q, let The ball screw is sufficiently lubricated, so that the problems of the prior art can be improved to maintain the running precision of the ball screw and prolong the service life. Therefore, the above-mentioned "industrial availability" of the present invention should be There is no doubt that, besides this, the feature technology revealed in the embodiment of this case has not been seen in the publications before the application, nor has it been used publicly. It not only has the fact that the effect is enhanced as described above, but also has 201122278. Extra work that cannot be ignored The effect is that the 'new affinity' and the 'progressiveness' of the invention have been in compliance with the patent regulations. If the wife proposes an invention patent according to law, please ask for a review and give the patent as soon as possible. The disclosure is intended to be illustrative of the present invention and is not intended to limit the invention, and variations of the numerical values and equivalents thereof are still subject to the invention.
m 9 201122278 【圖式簡單說明】 第-圖係為本發明具保養功能之痕珠 圖 螺桿立體 第二圖係為本發明具保養功能之滾珠 侧視圖 螺桿之螺桿 第二圖係為第二圖之A — a剖視圖。m 9 201122278 [Simple description of the diagram] The first diagram is the trace diagram of the invention with the maintenance function. The second diagram of the screw is the second diagram of the screw of the side view screw of the invention with the maintenance function. A - a cross-sectional view.
第四圖係為本發明具保養功能之滚殊螺桿 機台之示意圖。 、 、 ，未作動保養 第五圖係為第四圖之B 一 b剖視圖 狀態 第六圖係為第四圖之B-B剖視圖，係為藉由保 養液清潔螺帽之穿孔示意圖。 第七圖係為第四圖之B-B剖視圖，係為添加保 養液至螺帽之穿孔示意圖。 201122278 【主要元件符號說明】 1 螺桿 1 1 負荷區 1 11 滾動溝 1 2 保養區 1 2 1 定位牙 1 3 通孔 1 4 端面 1 5 盲孔 D 1 負荷區外徑 D 2 保養區外徑 D 3 滾動溝根徑 D 4 定位牙根徑 D 5 盲孔内徑 2 螺帽 2 1 穿孔 2 11 滾動槽 2 2 排出孔 3 工作平台 4 軸承 5 聯軸器 6 動力源 7 滾動件 F 輸入方向 Q 保養液 X 排出方向The fourth figure is a schematic view of the roller machine of the invention with the maintenance function. , , , ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The seventh drawing is a B-B cross-sectional view of the fourth figure, which is a schematic view of the perforation of the nutrient solution to the nut. 201122278 [Description of main component symbols] 1 Screw 1 1 Load zone 1 11 Rolling groove 1 2 Maintenance zone 1 2 1 Positioning tooth 1 3 Through hole 1 4 End face 1 5 Blind hole D 1 Load zone outer diameter D 2 Maintenance zone outer diameter D 3 Rolling groove root diameter D 4 Positioning root diameter D 5 Blind hole inner diameter 2 Nut 2 1 Perforation 2 11 Rolling groove 2 2 Discharge hole 3 Working platform 4 Bearing 5 Coupling 6 Power source 7 Rolling element F Input direction Q Maintenance Liquid X discharge direction