1289085 玫λ發明說明 (發明說明應敘明：發明所屬之技術領域、先前技術、內容、實施方式及圖式簡單說明） 【發明所屬之技術領域】 本發明係與工具機之工件夾頭有關，特別是關於一種 旋轉分度夾頭。 5【先前技術】 一種習用之旋轉分度夾頭如台灣新型專利公告第 447345號或美國發明專利第6540235號所示，係以二同軸 穿套設置之二活塞桿藉交互之往復運動，推動一用以連結 工件之轉軸連續地轉動，以達成分度旋轉工件的效果。為 10 了容置該二活塞桿，該夾頭之本體上必須加工出二同軸前 後排列且不同孔徑之油壓缸孔，且為防止該二缸孔間產生 漏油之現象，該二缸孔及活塞桿間必須設置大量之密封元 件，而提高了整個夾頭的生產成本。又，該二活塞桿之往 復移動必須能精確地配合，才能順暢且有效地推動該轉軸 15 轉動，否則將使該二活塞桿與該轉軸產生卡死而無法作動 之現象，此點也導致該夾頭在加工上及控制上之難度。 【發明内容】 有鑒於此，本發明之主要目的在於提供一種旋轉分度 20 夾頭，係一構造簡單而製造成本低廉者。 本發明之次要目地在於提供一種旋轉分度夾頭，係一 其轉軸之分度轉動確實而不易產生卡死而無法轉動之現象 者。 用以達成前揭之發明目的，本發明提供之旋轉分度夾 71續次頁（發明說明頁不敷使用時，請註記並使用續頁） -4- 1289085 _ 發明說明 頭包含有： 一夾頭本體，其具有有一工件收容槽，且該夾頭本體 可界定出位於該收容槽二相對側之一第一侧部及一第二側 部； 5 一壓制桿，係樞設於夾頭本體之第二側部中，且可沿 其軸向往復地朝該第一側部前進或後退； 一旋轉分度控制裝置，包含有： 一轉軸，係與該壓制桿同軸地樞設於該夾頭本體之第 一侧部中，其具有一第一抵接部及一第二抵接部； 10 —掣動件，係可軸向往復滑移地設於該夾具本體之第 一側部中，其具有一第一掣動部及一第二掣動部，係在該 掣動件往向及復向滑移時，分別抵推該第一、二抵接部， 以驅動該轉軸朝同一轉向轉動者。 15 【實施方式】 以下，茲列舉本發明之較佳實施例，並配合下列圖式 詳細說明於后，其中： 第一圖係本發明一較佳實施例之外觀立體圖； 第二圖係第一圖所示實施例之後視圖； 20 第三圖係沿第二圖3 — 3線之剖視圖； 篇四、五圖係分別為第一圖實施例部份構件之立體圖； 第六〜八圖係分別為第一圖所示實施例部份構件之作 動不意圖 請參閱第一圖至第五圖所示，本發明一較佳實施例之 -5- 1289085 _ 發明說明 旋轉分度夾頭1係包含有： 一夾頭本體10,如第一、二及三圖所示，係呈圓柱形。 該夾頭本體10具有一長矩形的工件收容槽11，係該本體 10之正端面上形成一開口 111，且該夾頭本體10可分有一 5 第一侧部12及一第二側部13，係分別位於該工件收槽11 之兩相對側。該夾頭本體10更具有一第一腔室14、一第 二腔室15、一第三腔室16、一容置槽17、以及二供油道 18 ;其中，該第一腔室14位於該第一側部12中，其具有 一開口形成於該工件收容室11之一側壁上；該第二腔室15 10 位於該第二側部13中與該第一腔室14呈同軸設置，其具 有一開口位於該工件收容室11之另一側壁上；該容置槽17 係設於該夾頭本體10之背部，係為一長形槽且其具一開口 171位於該夾頭本體10之背端面上，如第二圖所示；該第 三腔室16係位於該第一側部12中且連通該第一腔室14與 1.5 該工件收容槽17 ;另外，該二供油道18係分別自該夾頭 本體10之背端面連通至該第二腔室15。 一壓制桿20，如第三圖示，其具有一桿身21、以及分 別連結於該桿身21兩端之一活塞22及一壓制板23。該壓 制桿20係設於該第二侧部13中，其活塞22位於該第二腔 20 室15中且其桿身21自該腔室15之開口穿出，而其壓制板 23則位於該工件收容槽11内；該活塞22上套設有一橡膠 密封環221，藉以與該第二腔室15之腔壁繁密貼合。藉此， 依序供以液壓油自該二供油道18進入該第二腔室15中， 可導致該活塞22於該第二腔室15中往復滑移，形成該壓 -6- 1289085 發明說明,¾頁; 制桿20朝該第一側部12方向前進或後退。 一旋轉分度控制裝置，包含有： 一轉軸30’如第四圖所示，其具有—軸身31及一連 結於該軸身31 -端之連結部32。該轴身31具有一第一抵 5接部311及-第二抵接部312，該第一抵接部係由四個長矩 形第-平面313所構成，該四第一平面313係環繞該轴身 31之軸心且各呈9 〇度夾角，·該第二抵接部3係由位於 該第一掣動部311二側且之各四個長矩形第二平面Μ#所 構成，各四個該第二平面314係環繞該軸身31之軸心且各 1〇呈9 0度之夾角，且該八個第二平面314各與該第一抵接 部3U之四個第-平面313呈4 5度角之交錯；該連結部 32係呈圓板狀，其外端面具有用以連結工件模具之連結結 構321。該轉軸30係設於該夾頭本體1〇之第一側部12中， 其軸身31位於該第一腔室14中，其結合部32則位於該工 15 件收容槽11中。 一掣動件40,如第五圖所示，係具有一身部41、一第 掣動才干42、一第一掣動桿43及一連接桿44，其中，該 第一、二掣動桿42、43係分別呈一下一上地連結於該身部 42之一側部，而該連接桿44則連結於該身部41之另一侧 20部，且其接近末端處具有一銷441。諒第二掣動桿43具有 一第二掣動部431，係由形成於該第二掣動桿42自由端且 呈對稱分布之二第二斜面432所構成，且該自由端更具有 一凹槽433位於該二第二斜面間432。該第一掣動桿42具 有一第一掣動部421，係為一位於該第一掣動桿42之自由 1289085 _1289085 玫λ invention description (invention description should be: the technical field, prior art, content, embodiment and schematic description of the invention) Especially with regard to a rotary indexing chuck. 5 [Prior Art] A conventional rotary indexing chuck, as shown in Taiwan New Patent Publication No. 447345 or US Patent No. 6540235, is a reciprocating motion of a piston rod disposed by a two-coaxial sleeve to promote one. The rotating shaft for connecting the workpiece is continuously rotated to achieve the effect of rotating the workpiece by the component. In order to accommodate the two piston rods, the hydraulic cylinder bores of the two coaxial front and rear and different bore diameters must be machined on the body of the chuck, and the two cylinder bores are prevented from being oil leakage between the two cylinder bores. A large number of sealing elements must be placed between the piston rods, which increases the production cost of the entire chuck. Moreover, the reciprocating movement of the two piston rods must be accurately matched to smoothly and effectively push the rotation of the rotating shaft 15, otherwise the two piston rods and the rotating shaft may be stuck and unable to act, which also causes the The difficulty of the chuck in processing and control. SUMMARY OF THE INVENTION In view of the above, it is a primary object of the present invention to provide a rotary indexing 20 chuck which is simple in construction and inexpensive in manufacturing. A secondary object of the present invention is to provide a rotary indexing chuck which is a phenomenon in which the indexing rotation of the shaft is not easily caused to be stuck and cannot be rotated. For the purpose of the invention disclosed above, the rotary indexing clip 71 provided by the present invention is continued (the description page is not sufficient, please note and use the continuation page) -4- 1289085 _ The description of the head includes: a clip The head body has a workpiece receiving groove, and the chuck body defines a first side portion and a second side portion on opposite sides of the receiving groove; 5 a pressing rod is pivotally disposed on the chuck body In the second side portion, and reciprocally reciprocating toward the first side portion along the axial direction thereof; a rotary indexing control device comprising: a rotating shaft pivotally disposed on the clamp coaxially with the pressing rod The first side portion of the head body has a first abutting portion and a second abutting portion; 10 - a tilting member is axially reciprocally slidably disposed in the first side of the jig body Having a first swaying portion and a second swaying portion, respectively, when the swaying member is sliding in the forward and reverse directions, respectively pushing the first and second abutting portions to drive the rotating shaft toward the same Turn to the rotator. [Embodiment] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the following drawings, wherein: FIG. 1 is a perspective view of a preferred embodiment of the present invention; Figure 3 is a rear view of the embodiment; 20 is a cross-sectional view taken along line 3 - 3 of the second figure; and the fourth and fifth figures are respectively a perspective view of some components of the first embodiment; For the operation of some of the components of the embodiment shown in the first figure, please refer to the first to fifth figures. In the preferred embodiment of the present invention, the 5-5-189085 _ the invention discloses that the rotary indexing chuck 1 includes There are: A collet body 10, as shown in the first, second and third figures, is cylindrical. The chuck body 10 has a long rectangular workpiece receiving groove 11 , and an opening 111 is formed on the front end surface of the body 10 , and the chuck body 10 can be divided into a fifth side portion 12 and a second side portion 13 . The two are located on opposite sides of the workpiece receiving groove 11. The chuck body 10 further has a first chamber 14, a second chamber 15, a third chamber 16, a receiving groove 17, and two oil supply passages 18; wherein the first chamber 14 is located The first side portion 12 has an opening formed on one side wall of the workpiece receiving chamber 11; the second chamber 15 10 is located in the second side portion 13 coaxially with the first chamber 14 An opening is located on the other side wall of the workpiece receiving chamber 11; the receiving groove 17 is disposed on the back of the chuck body 10, and is an elongated slot and has an opening 171 located in the chuck body 10 On the back end surface, as shown in the second figure; the third chamber 16 is located in the first side portion 12 and communicates with the first chamber 14 and 1.5 the workpiece receiving groove 17; in addition, the two oil supply passages The 18 series are respectively connected to the second chamber 15 from the back end surface of the chuck body 10. A pressing rod 20, as shown in the third figure, has a shaft 21, and a piston 22 and a pressing plate 23 respectively coupled to the ends of the shaft 21. The pressing rod 20 is disposed in the second side portion 13. The piston 22 is located in the chamber 15 of the second chamber 20 and the shaft 21 thereof is passed out from the opening of the chamber 15, and the pressing plate 23 is located therein. The piston 22 is sleeved with a rubber sealing ring 221 so as to be in close contact with the cavity wall of the second chamber 15. Thereby, the hydraulic oil is sequentially supplied from the two oil supply passages 18 into the second chamber 15, which may cause the piston 22 to reciprocate in the second chamber 15, forming the pressure -6-1289085 invention Description, 3⁄4 page; the rod 20 advances or retreats toward the first side portion 12. A rotary indexing control device comprising: a rotating shaft 30' as shown in the fourth figure, having a shaft body 31 and a coupling portion 32 coupled to the shaft end 31-end. The shaft body 31 has a first abutting portion 311 and a second abutting portion 312. The first abutting portion is formed by four long rectangular first planes 313. The four first planes 313 surround the shaft. The axis of the shaft body 31 is at an angle of 9 degrees, and the second abutting portion 3 is composed of four long rectangular second planes Μ# located on two sides of the first swaying portion 311. The four second planes 314 are around the axis of the shaft body 31 and each of them is at an angle of 90 degrees, and the eight second planes 314 are respectively opposite to the four first planes of the first abutting portion 3U. 313 is staggered at a 45-degree angle; the connecting portion 32 is in the shape of a disk, and the outer end surface thereof has a connecting structure 321 for joining the workpiece mold. The shaft 30 is disposed in the first side portion 12 of the chuck body 1 , and the shaft body 31 is located in the first chamber 14 , and the joint portion 32 is located in the 15 housing receiving groove 11 . A swaying member 40, as shown in FIG. 5, has a body portion 41, a first swaying lever 42, a first swaying lever 43, and a connecting rod 44, wherein the first and second swaying rods 42 The 43 series are respectively connected to one side of the body portion 42 in a vertical manner, and the connecting rod 44 is coupled to the other side 20 of the body portion 41, and has a pin 441 near the end. The second swaying rod 43 has a second swaying portion 431 formed by two second slanting surfaces 432 formed symmetrically at the free end of the second raking rod 42 and having a concave end. The slot 433 is located between the two second slopes 432. The first swaying rod 42 has a first swaying portion 421 which is a free one located at the first swaying rod 42. 1289085 _
發明說明$賣;E 端處的一第一斜面422,且該第一斜面422係面向於該二 第二斜面432之朝向。該掣動件40係設於該夾頭本體10 之第一側部12中，其身部41位於該第三腔室16内，其二 掣動桿42、43則分別伸入該第一腔室14中，使該第一掣 5 動部421及該第二掣動部431分別位於該轉軸30之軸身 31兩側，且該第一斜面422及該二第二斜面432分別位於 對應該第一、二抵接部311、312之位置處；另外，該掣動 件40之連接桿44係延伸入該容置槽17中。 一連桿50，如第二、三圖所示，係樞設於該容置槽17 10 中，其桿身接近二端處各設有一長形滑槽51，其中一滑槽 51與該掣動件40之銷441結合，另一滑槽51則用以結合 一工作母機上的油壓桿60。藉此，當該工作母機上之油壓 桿60伸縮作動時，可藉該連桿50傳動該掣動件40於該第 三腔室16中往復滑移。 1.5 藉由上述之構造，該旋轉分度夾頭1係用以裝設於一 工作母機如車床之旋轉主軸上，且使其連桿50與該工作母 機上之一油壓桿60連結；該油壓桿60可作一伸縮作動， 且藉由該連桿50可傳動該掣動件40於該第三腔室16中作 一復向及往向之滑移。 20 請參閱第六〜八圖，當該油壓桿60作推伸之動作時， 該掣動件40將因該連桿50之傳動而於該第三腔室16中作 一復向之滑移，即該掣動件40將從第六圖所示之位置經第 七圖所示之位置滑移至第八圖所示之位置；在這一過程 中，該轉軸30之一第一平面313會受到該掣動件40之第 -8· 1289085 _ 發明說明_頁 一斜面422所推掣而使該轉軸30產生相對應方向45度角 之轉動。當該油壓桿60作回縮之作動時，該掣動件40將 因該連桿50之傳動而於該第三腔室16中作一往向之滑 移，即該掣動件40將從第八圖所示之位置經第七圖所示之 5 位置滑移至第六圖所示之位置；在此同時，該轉軸30之二 第二平面314會分別受到該掣動件40之二第二斜面432之 頂掣而使該轉軸30產生相對應方向45度角之轉動。 藉由上述可知，該油壓桿60每一個伸或縮的動作，都 會使該轉軸30產生一 45度角之轉動，且該轉軸30之每次 10 轉動方向都相同，藉此可用以轉動藉由一夾具連結在該轉 軸30之連結部32上的工件，可用以調整該工件於該夾頭 1中之角度或姿態，以方便於不同形態之加工。 上述旋轉分度夾頭之優點在於僅藉由該單一之掣動件 便可具有習式二掣動件所能達成之功能，所以其構造較習 15 式者簡單，無論於生產及裝配上都可節生很多的成本，同 時也可降低產生故降之機率。 又，該分度夾頭係以該單一之掣動件推掣該轉軸以相 同於習式轉軸之轉速旋轉，不會產生如習式分度夾頭因二 掣動件間之之作動干涉而導致之作動卡死現象。 20 在上述實施例中，由於該等第一平面間之夾角各為90 度，該等第二平面之夾角亦然，故該轉軸之每單一轉動角 度為45度；當該上述平面之數量及其間之夾角因實際需要 而有不同於上述實施例之設計，以使轉軸之每單一轉動角 度為適於實際需求者。 -9- 25 I289〇85Description of the Invention: A first bevel 422 at the end of E, and the first bevel 422 is oriented toward the orientation of the second bevel 432. The swaying member 40 is disposed in the first side portion 12 of the collet body 10, the body portion 41 is located in the third chamber 16, and the two raking rods 42, 43 respectively extend into the first cavity portion In the chamber 14, the first splaying portion 421 and the second slanting portion 431 are respectively located on opposite sides of the shaft body 31 of the rotating shaft 30, and the first inclined surface 422 and the second second inclined surface 432 are respectively located corresponding to each other. At the position of the first and second abutting portions 311 and 312, the connecting rod 44 of the swaying member 40 extends into the accommodating groove 17. A connecting rod 50, as shown in the second and third figures, is pivotally disposed in the accommodating groove 1710, and an elongated chute 51 is disposed at each of the two ends of the shaft, wherein a chute 51 and the cymbal 51 The pin 441 of the movable member 40 is coupled, and the other chute 51 is used to couple the hydraulic rod 60 on a working machine. Thereby, when the hydraulic rod 60 on the working machine is telescopically actuated, the connecting member 50 can be used to drive the swaying member 40 to reciprocate in the third chamber 16. With the above configuration, the rotary indexing chuck 1 is mounted on a rotating main shaft of a working machine such as a lathe, and the connecting rod 50 is coupled with a hydraulic rod 60 on the working machine; The hydraulic rod 60 can be operated by a telescopic movement, and the connecting rod 50 can drive the swaying member 40 to perform a reversing and backward sliding movement in the third chamber 16. 20 Referring to the sixth to eighth figures, when the hydraulic rod 60 is in the action of pushing, the swaying member 40 will be slid in the third chamber 16 by the transmission of the connecting rod 50. That is, the swaying member 40 will be slid from the position shown in the sixth figure through the position shown in the seventh figure to the position shown in the eighth figure; in the process, one of the first planes 313 of the rotating shaft 30 The rotation of the shaft 30 by a corresponding angle of 45 degrees is caused by the slanting surface 422 of the swaying member 40. When the hydraulic rod 60 is retracted, the swaying member 40 will slide in the third chamber 16 by the transmission of the connecting rod 50, that is, the swaying member 40 will Sliding from the position shown in FIG. 8 to the position shown in FIG. 7 through the position shown in FIG. 7; at the same time, the second plane 314 of the rotating shaft 30 is respectively received by the tilting member 40. The top of the second inclined surface 432 causes the rotating shaft 30 to rotate at a corresponding angle of 45 degrees. As can be seen from the above, each movement of the hydraulic rod 60 causes the rotation shaft 30 to rotate at a 45-degree angle, and the rotation direction of the rotation shaft 30 is the same every time. The workpiece attached to the joint portion 32 of the rotating shaft 30 by a clamp can be used to adjust the angle or posture of the workpiece in the chuck 1 to facilitate processing in different forms. The above-mentioned rotary indexing chuck has the advantage that the function of the conventional two-way movable member can be achieved only by the single movable member, so that the structure is simpler than the conventional one, regardless of production and assembly. It can save a lot of costs, but it can also reduce the chance of falling. Moreover, the indexing chuck is rotated by the single tilting member to rotate the rotating shaft at the same speed as the rotating shaft of the conventional shaft, so that the working indexing chuck does not interfere with the motion between the two movable members. Caused by the action of stuck. In the above embodiment, since the angle between the first planes is 90 degrees, and the angle between the second planes is also the same, the single rotation angle of the rotation shaft is 45 degrees; when the number of the planes is The angle between them is different from the design of the above embodiment due to actual needs, so that each single rotation angle of the rotating shaft is suitable for practical needs. -9- 25 I289〇85
.【圖式簡單說明】 第一圖係本發明一較佳實施例之外觀立體罔 第二圖係第一圖所示實施例之後視圖； 5 第三圖係沿第二圖3 — 3線之剖視圖； 第四、五圖係分別為第一圖實施例部份構 第六〜八圖係分別為第一圖戶斤示實施例部之立體圖·’ 動示意圖 知構件 之作 10 15 20 【圖式符號說明】 旋轉分度夾頭1 開口 111 第一腔室14 容置槽17 壓制桿20 密封環221 軸身31 第一平面313 連結結構321 第一掣動桿42 第二掣動桿43 •凹槽433 連桿50 夾頭本體10 第一側部12 第二腔室15 開口 171 桿身21 壓制板23 第一抵接部311 第二平面314 掣動件40 第一掣動部421 第二掣動部431 連接桿44 滑槽51 工件收容槽11 第二側部13 第三腔室16 供油道18 活塞22 轉軸3〇 第二抵接部312 連結部32 身部41 第〜斜面422 第二斜面432 鮮441 沾壓桿60 -10 -BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a perspective view of an embodiment of the preferred embodiment of the present invention. The second drawing is a rear view of the embodiment shown in the first figure. 5 The third drawing is along the second line of Figure 3 - 3 The fourth and fifth figures are respectively the first embodiment of the first embodiment. The sixth to eighth diagrams are respectively the first diagram of the first embodiment of the embodiment of the embodiment of the three-dimensional diagram of the schematic diagram of the member 10 15 20 Explanation of the symbols] Rotary indexing chuck 1 Opening 111 First chamber 14 accommodating groove 17 Pressing rod 20 Sealing ring 221 Shaft body 31 First plane 313 Connecting structure 321 First raking rod 42 Second raking rod 43 • Groove 433 Link 50 Chuck body 10 First side portion 12 Second chamber 15 Opening 171 Shaft 21 Pressing plate 23 First abutting portion 311 Second plane 314 Tilting member 40 First tilting portion 421 Second Tilting portion 431 connecting rod 44 chute 51 workpiece receiving groove 11 second side portion 13 third chamber 16 oil supply passage 18 piston 22 rotating shaft 3 〇 second abutting portion 312 connecting portion 32 body portion 41 slanting surface 422 Two inclined surface 432 fresh 441 dipstick 60 -10 -