1314618 九、發明說明： 【發明所屬之技術領域】 特別是指#可調式預璧裝置的 本發明為一種滾珠螺桿 滾珠螺桿。 【先前技術】 -般的螺帽與螺桿間’為了在緊密配合之餘同 動順暢，都不會讓螺帽與螺桿完全配合，而會讓螺帽' 袖大於螺桿的螺牙，如此便能留下預設的間隙讓兩者間於夠 :暢的作動’此間隙即為業界所稱的背隙，但是當螺帽二累 桿使用在高精密度的滾珠螺桿上時，螺桿以正轉帶__ 订程以及螺桿以反轉帶動螺帽的行程，會因螺桿螺牙靠抵於 螺帽螺紋的不關上而造成行輯誤差，這料求高精密产 的滚珠螺桿來說’是個很嚴重的問題，為此市面上便開ς = —種消除背隙誤差的結構，其提供—預壓力把螺帽固定向單 —方向推抵’如此便能夠使螺桿螺牙固定靠抵在螺帽螺紋的 同-侧上，解決了螺桿螺牙靠抵於螺帽螺紋的不同側上而、告 成行程的駐，獨此種結構往往只能提供螺咖定的預= =，沒辦法因應需要進行預壓力的調整，所以奴有改進的 空間。 1314618 華民更針對調整漏力的問題開發出-種產品，♦ +民國專辦^錢_12_、專利名稱 調式預厂堅結構」，其如第1圖所述，在螺鎖於—螺== 相鄰螺帽B上各設置一環形預壓、 相配合且位於該二螺㈣之門，，嫂 系?“之間，该二螺帽B並對該 壓片10具有㈣方向的推擠力’該各環形顏片第2 圖所示，其上又分別具有—斜面u，該二環形賴片】^ 二別以斜面11相貼合，再將—㈣件20組裝在該二螺㈣ 間而位於該二環形漏片1G徑向方__1314618 IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention of the #adjustable pre-twisting device is a ball screw ball screw. [Prior Art] - between the nut and the screw 'in order to make the nut fit smoothly with the tight fit, the nut is not fully fitted with the screw, and the nut's sleeve is larger than the screw of the screw. Leave a preset gap to make the two between: smooth operation 'this gap is the industry's backlash, but when the nut two rods are used on high-precision ball screws, the screw is forward With the __ ordering and the screw to reverse the stroke of the nut, the screw thread will not be closed due to the screw thread, which is caused by the high-precision ball screw. A serious problem, for this reason, the market is open ς = a structure that eliminates the backlash error, which provides - the pre-pressure pushes the nut in a single direction - so that the screw thread can be fixed against the nut On the same side of the thread, the screw thread is fixed against the different sides of the nut thread, and the stroke is completed. The unique structure can only provide the pre-=== Pre-stress adjustment, so slaves have room for improvement. 1314618 Huamin has developed a variety of products for the problem of adjusting leakage, ♦ + Republic of China specializes in money _12_, patent name modulation pre-factory firm structure, as described in Figure 1, in the screw lock - screw = = Adjacent nut B is provided with an annular preload, a matching and located at the door of the two screw (four), between the two, and the second nut B has a (four) direction of pushing against the tablet 10 Figure 2 shows the two annular segments, each of which has a bevel u, which is attached to the bevel 11 and then the - (four) member 20 is assembled in the two screws (four) Located in the radial direction of the two annular diaphragm 1G __
環形預壓片10的徑向方向位移； H —如此調整該固定件2G相應該二螺帽Β的徑向位置使該 固定件2 0控向向外位銘，杨At π外位移’便献該二環形預㈣iq在捏向 方向上具有可位移的空間，此時該二螺帽B擠壓該二環形預 壓片10的力便會使該二環形預壓片Π)沿其斜面η進行相 對滑動，=二環形漏片1()便徑向向外位移，如此便能減 少遠-螺帽Β的轴向距離而調整該滾珠螺桿的預壓力； 一 周正。亥固疋件20相應該二螺帽β的徑向位置使 /、仏向向内位私’便能推播該二環形預壓片⑺沿其斜面11 進行相對賴且徑㈣内位移，如此便能增加該二螺帽β的 軸向距離而調整該滾珠螺桿的碰力。 1314618 不過前述的滾珠螺桿之可調式預壓結構，在進行預壓力The radial pre-loading piece 10 is displaced in the radial direction; H - the adjustment of the radial position of the fixing member 2G corresponding to the two nut 使 so that the fixing member 20 is controlled to the outward position, and the Yang At π external displacement is provided The two annular pre-fourth iq has a displaceable space in the pinching direction. At this time, the force of the two-ring pre-pressing piece 10 by the two nuts B causes the two-ring pre-compression piece Π to be along the inclined surface η. Relative sliding, = two annular diaphragm 1 () is displaced radially outward, so that the axial distance of the far-nut Β can be reduced to adjust the pre-pressure of the ball screw; The Haigu element 20 corresponding to the radial position of the two nut β enables /, the inward direction of the private 'can push the two annular pre-pressing piece (7) along its inclined surface 11 relative to the diameter (four) displacement, so The axial distance of the two nuts β can be increased to adjust the impact of the ball screw. 1314618 However, the aforementioned pre-stressed structure of the ball screw is pre-stressed.
的調整時，該二·彡預壓片1(^僅之間會滑純移造成摩 擦’且該二環形預壓片1()在徑向位移時也會和該二螺帽B 之間摩擦’這兩方_摩擦;但造朗能因摩擦轉換成熱能 的能量浪費，該各環形預壓片1()也會因同時受兩方面摩捧 而影響操作其徑向位移_暢度，更會因長期摩擦造成該各When the adjustment is made, the second 彡 pre-pressing piece 1 (the slid only purely causes friction) and the two annular pre-pressing piece 1 () will also rub against the two nut B when it is displaced radially. 'The two sides _ friction; but the lang can be wasted energy due to friction into heat energy, the ring pre-pressing piece 1 () will also affect its radial displacement _ smoothness due to the simultaneous impact of both sides, Will be caused by long-term friction
壤形預壓片1G的磨耗，此外該二螺帽B為因應使用上的需 求，往往必需優先制較具剛性的材f，而無法優級用低 摩擦係數的材質，所以該二環形預壓片1()與該二 b間 的摩擦力及摩擦耗損更難以減輕，所以要如何解決如斯問題 也是業界關注的焦點。 【發明内容】 本發明目的在提供-種具可調式預壓裝置的滾珠螺 桿’其在設置於二螺帽上的二環形預壓片上分顺置凸部， 並以該些凸部壓抵二楔形塊，再以—束緊件環繞在該二㈣ 塊的外圍，由於僅以該二楔形塊與該二環形職片接觸故 能夠減少摩擦而防止能量浪費，且雜提賴作_暢度及 減少磨耗。 因此本發明具可調式預壓褒 置的滾珠螺桿，包含一螺 1314618 ::二螺帽、二環形預塵片、二換形塊以及一束緊件，該二 螺_卜“ 糾上，紅環形观m组裝在該二 螺巾自上且位於該二螺帽 具傾斜端面^/1 形預㈣上又成型若干 、彳’该二楔形塊則相對設置在該二環形預壓 該各卿㈣料岭缝—面彼此 =束緊件環繞在該二楔形塊徑向方向的外側並限制該 一楔形塊徑向方向的位移； 調整該束緊件相應該二螺帽的徑向位置便可調整該二 ==徑向間距並改變該二環形預壓片的軸向間距，藉此 便月匕5周正该二螺帽的預壓力。 且本發明具可調式預壓裝置的滾珠螺桿，是以該 _該，環形_片凸部之間的滑動來達成徑向位移，因此 /、有„亥一楔形塊與該二環形預壓片的凸部間會產生摩捧，如 此只要針對該二楔形塊及該二環形預壓 :::便能狗減少摩擦力造成的能量浪費，且能讓調整預 [力的作動更為順暢’更能減少摩擦造成的磨耗；且本發明 具可調式預壓裝置的滾珠螺桿，還可在該二_塊及該二環 形預壓片的凸部之間塗佈潤滑油脂，更可減少該 該些凸部間的摩擦力。 、办甩及 8 .1314618 此外’可錢二卿賴片的各凸部端面 槽’該些凹财供儲存㈣油脂； 干 條束緊件可W扣並由螺絲翻，也可為束帶而以齒 實施方式】 圖 〃可狀懸裝置的滾珠螺桿，實施例如第3 乐D圖所示，其包含： 相鄰； 螺桿30 ; 螺帽40，分別螺設在該螺桿3〇上， 且該二螺帽4〇 :環形預壓片5Q，分別套設在該螺㈣上，且該二产 乂垒片50分別組裝在該二螺帽 衣 之間，兮夂严… κ立於違一螺帽50 預壓片5G上又成型轩凸部51， 1又具—傾斜的端面5 2，此實施 4 二㈣’且該二凸部51分別位在 =:蘭5。具 向方向側面的相對方向上；在。玄各_預壓片5〇軸 二検形塊60,彼此相對且分 5〇的凸部51之門 刀別-置在该二環形預壓片 傾斜面Μ與如凸娜塊6Q以其轴向方向兩側的 二_塊6。分別相㈣“而面52接觸’此實施例中，該 別相應該二環形預厂堅片50的形狀而成型為孤 .1314618 形；以及 束緊件70 ’環繞限制在該二楔形塊6〇徑向方向的外 ::此實施财’該束緊件7q套設在該二楔形㈣外以限 1〜秦形塊60的徑向向外位移，且該束緊件70由二C扣 71以螺絲72鎖固所構成。 0士，：本發明具可調式顯裝置的滚珠螺桿其調整刪 :疋以5周整該束緊件7〇相應該二螺帽4。的徑向位置來調 二塊6〇的徑向間距，且同步調整該二環形刪 的轴向間距’便能以此調整該二螺帽40的預壓力； ^實施例中的作動則如第6圖及第7圖所示，調鬆該 二觸72來增加該束緊件7〇其二咖的徑向 I減楔形塊6G便能增加其間的徑向間距，相對的便 環形預壓片50的軸向間距且同步減少該二螺帽 40的軸向間距，反之，裯腎 ” 束緊㈣其二的螺絲72減少該 白間距，该二楔形塊60便能減 ^ =向間距’相對的便會增加該二環形預壓片印的 向間距且同步增加該二螺帽4〇的軸向間距，如 二螺帽40的軸向間距便能改變該二螺帽4〇的預壓力。· 由於本發8祕可赋簡裝“滾_桿，只有該二棋 10 1314618 形塊60與該二環形賴片如的 以針對唁二枷p 门a產生摩擦，所 的材質，便㈣減少摩擦力造成的能量浪f _ = 厂聖力的作動更為順暢，更能減少摩擦造成的磨耗周正預 之門楔形塊6G及該二環形預㈣5g的凸部η 之間可塗佈潤滑油脂，更能 51間的摩捧力，且节m「 塊6G及該些凸部 52上還可成型若干凹槽，該些凹槽可供健存潤二= 调滑效果更持久’而該束緊件70還可為 位置的功能。 ，顧相應該二螺㈣徑向 綜上所述，本發明為—種呈 』5周式預壓裝置的滾玦蜾 杯，其在一螺桿上螺設二螺帽， ’、 _ ^ μ 在5亥二螺帽間設置二環形 預壓片、二楔形塊及一束緊件，以該 ,A束緊件调整該二楔形塊 的徑向間距而改變該二環形預壓 汽 _ Α 片的轴向間距，藉此調整哼 滾珠螺桿的預壓力來消除螺帽與螺椁間的背隙。 μ ‘1314618 ‘ 【圖式簡單說明】 第1圖習用可調式預壓結構組裝於滚珠螺桿的示意圖。 第2圖習用可調式預壓結構其環形預壓片的示意圖。 第3圖本發明實施例的立體圖。 第4圖本發明實施例的分解圖。 第5圖本發明實施例的側視圖。 第6圖本發明實施例的部份剖視圖。 _ 第7圖第6圖調整楔形塊徑向位移的示意圖。 【主要元件符號說明】 《習用》The abrasion of the soil-shaped pre-compression sheet 1G, in addition to the demand of the second nut B, it is often necessary to prioritize the more rigid material f, and it is not possible to use a material with a low friction coefficient, so the two-ring pre-compression The friction and friction loss between the sheet 1 () and the two b are more difficult to reduce, so how to solve the problem is also the focus of the industry. SUMMARY OF THE INVENTION The object of the present invention is to provide a ball screw with an adjustable preloading device that divides a convex portion on a two-ring pre-pressing piece disposed on a second nut, and presses the convex portion with the convex portion The wedge block is surrounded by the tensioning member on the periphery of the two (four) blocks, and since the two wedge blocks are only in contact with the two ring-shaped pieces, friction can be reduced to prevent energy waste, and the noise is reduced and smooth Reduce wear. Therefore, the ball screw with the adjustable pre-pressing device comprises a screw 1314618::two nut, two annular pre-dust, two-shaped block and a tightening piece, and the two screws are entangled, red The annular view m is assembled on the two spirals from above and is located on the inclined end face of the two nuts with a pre-(4) shape and a plurality of shapes, and the two wedge-shaped blocks are oppositely disposed on the two annular pre-presses. (4) the ridge joints - the faces of each other = the tightening members surround the outer side of the radial direction of the two wedge blocks and limit the displacement of the radial direction of the wedge blocks; adjusting the radial position of the tightening members corresponding to the two nuts Adjusting the two == radial spacing and changing the axial spacing of the two annular pre-compression sheets, thereby pre-stressing the two nuts for 5 weeks. And the ball screw with the adjustable pre-pressing device of the present invention is With the sliding between the convex portions of the annular sheet, the radial displacement is achieved, so that there is a friction between the wedge-shaped block and the convex portion of the two annular pre-pressing sheets, so as long as the two are The wedge block and the two annular preloads::: the dog can reduce the energy waste caused by the friction, and can make the tone The pre-precision of the force is more smooth, and the wear caused by the friction is more reduced; and the ball screw of the invention with the adjustable pre-pressing device can also be coated between the two blocks and the convex portions of the two annular pre-compression sheets. The lubricating oil of the cloth can reduce the friction between the convex portions. 、 甩 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 In the embodiment of the tooth, the ball screw of the movable device of the present invention is embodied, for example, as shown in FIG. 3D, which includes: adjacent; the screw 30; the nut 40 is screwed on the screw 3〇, respectively, and The second nut 4〇: the annular pre-pressing piece 5Q is respectively sleeved on the screw (4), and the two-producting boring piece 50 is respectively assembled between the two nut-coats, and is sturdy... κ stands in violation of a snail The cap 50 pre-pressed piece 5G is further formed with a slanted convex portion 51, and 1 has a slanted end surface 5 2, which implements 4 (four)' and the two convex portions 51 are respectively located at =: blue 5. In the opposite direction of the direction of the direction; Xuan each _ pre-compression piece 5 〇 axis two 検 block 60, the door knives of the convex portion 51 which are opposite to each other and divided into 5 - - placed on the inclined surface of the two annular pre-pressing piece and the axis of the convex block 6Q Two _ blocks 6 on both sides of the direction. Separate phase (4) "and face 52 contact" in this embodiment, the shape of the two annular pre-factor plate 50 is formed into a lone 1331418 shape; and the tightening member 70' is circumferentially constrained to the two wedge block 6〇 The outer direction of the radial direction: the implementation of the tightening member 7q is sleeved on the outer side of the two wedges (four) to limit the radial outward displacement of the ring-shaped block 60, and the tightening member 70 is replaced by two C-pins 71. The utility model is characterized in that the ball screw is locked by the screw 72. The adjustment of the ball screw of the invention with the adjustable display device is carried out by adjusting the radial position of the tightening member 7 〇 corresponding to the two nuts 4 for 5 weeks. The radial spacing of the two 6 turns and the axial spacing of the two annular cuts can be adjusted simultaneously to adjust the pre-stress of the two nuts 40. The actuation in the embodiment is as shown in FIGS. 6 and 7. As shown, the loosening of the two-touch 72 to increase the radial I-cut wedge block 6G of the tightening member 7 can increase the radial spacing therebetween, and the axial spacing of the annular pre-pressing sheets 50 is opposite. Simultaneously reducing the axial spacing of the two nuts 40, and conversely, the two screws 72 reduce the white space, and the two wedge blocks 60 can reduce the 'The opposite one will increase the spacing of the two annular pre-presses and synchronously increase the axial spacing of the two nuts 4〇. For example, the axial spacing of the two nuts 40 can change the pre-rotation of the two nuts. pressure. · Since the 8th secret of this hair can be used to make a simple "rolling_bar, only the two chess 10 1314618 shaped block 60 and the two circularly-receiving pieces are used to generate friction against the two-ply door a, and the material (4) reduces friction. The energy wave caused by force f _ = The operation of the factory's holy force is smoother, and the abrasion caused by friction can be reduced. The grease can be applied between the wedge-shaped block 6G and the convex portion η of the two-ring pre-(4) 5g. The ability of 51 can be used, and the section m "block 6G and the convex portions 52 can also form a plurality of grooves, the grooves can be used for the health of the second = the sliding effect is more durable" and the tightening member 70 It can also be a function of position. According to the corresponding two screw (four) radial assembly, the present invention is a rolling cup of a 5-week type pre-pressing device, which is provided with a second nut on a screw. , ', _ ^ μ two annular pre-pressing sheets, two wedge-shaped blocks and a tightening member are arranged between the five-black nut, so that the A-clamping member adjusts the radial spacing of the two wedge-shaped blocks to change the two-ring Pre-pressurize the axial spacing of the _ , 片, thereby adjusting the pre-pressure of the 哼 ball screw to eliminate the backlash between the nut and the screw. μ '131461 8 ' [Simple diagram of the drawing] Fig. 1 is a schematic view of the assembly of the adjustable preloading structure to the ball screw. Fig. 2 is a schematic view of the annular preloading piece of the adjustable preloading structure. Fig. 3 is a perspective view of the embodiment of the invention Fig. 4 is an exploded view of an embodiment of the invention. Fig. 5 is a side elevational view of an embodiment of the invention. Fig. 6 is a partial cross-sectional view of an embodiment of the invention. _ FIG. 7 is a schematic view of adjusting the radial displacement of the wedge block. [Main component symbol description] "Use"
螺桿A 螺帽B 環形預壓片10 • 斜面Π 固定件20 - 《本發明》 螺桿30 螺帽40 環形預壓片50 12 1314618 ’ 凸部51 端面52 楔形塊60 傾斜面61 束緊件70 C扣71 螺絲72Screw A Nut B Annular pre-compression 10 • Bevel 固定 Fixing piece 20 - "Invention" Screw 30 Nut 40 Annular pre-compression 50 12 1314618 'Protruding part 51 End face 52 Wedge block 60 Inclined face 61 Tensioning piece 70 C Buckle 71 screw 72
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