M391436 X 心 99年7月08日修正替換百 五、新型說明： -__二1：管換貝 【新型所屬之技術領域】 本創作係與車床之主軸裝置有關，_是_一種彈 性筒夾及使用該彈性筒夾之車床主軸裝置。 【先前技術】 習知自動車床用於大量生產時，常會於其一主軸裝置 • 中設有一彈性筒夾，並利用油麗或氣壓之方式施予一作用 力，使該彈性筒夾徑向彈性收縮，以夾持一待加工之工 件。如此-來，該工件突露於該主轴裝置外的部份即可供 操作者進行加工’且在該部分加工完成後，只要解除施予 該彈性筒夾之作用力，再將該工件向外移出一部份，即可 再對該部分進行加工。 上述習知車床主軸裝置所裝設之彈性筒夾，其前段係 呈外徑往後端逐漸擴大之圓錐狀，而銜接於該前段後方之 鲁 中、後段則呈外徑往後端逐漸縮小之圓錐狀，且該彈性筒 _ 夾具有多數個自其後端朝前端延伸一相當距離之剖溝；另 外，該車床主軸之軸孔内須設有一形狀與該彈性筒失中後 段互補之圓錐面，以緊貼迫緊該彈性筒失中後段，進而使 f 其徑向收縮。然而，前述該彈性筒夾之收縮範圍相當小， 0此僅可用以夾持外徑在某一相當小之範圍内的工件否 則就要改使用另一適用範圍符合工件外徑之彈性筒夾；而 且，迫緊時，該軸孔内之圓錐面會大面積地貼接於該彈性 .....同夹，-造成.兩者不..易分*^。 99年7月08日修正替換頁 換言之，使用者需因應外徑不同 置替換不同的彈性筒失，如此不但所費不貲，更會讓使^ 者需花費相當_於更換彈性筒爽，進而降低卫作 因此仍肴待改進。 【新型内容】 ★有鑑於上述缺失，本創作之主要目的在於提供一種彈 性筒夾’其收縮彈性佳’因此適用之工件外徑範圍較大， 可節省使用者購買彈性筒夾之花費。 為達成上述目的，本創作所提供之彈性筒炎包含有一 本體，該本體具有-第-端面、一第二端面，以及一貫穿 該第-、第二端面之軸孔，該本體更設有多數個剖溝，係 用以使該本體可徑向地彈性收縮’以失持一穿設於該轴孔 之工件；該彈性筒夾之特徵在於：該本體具有—身部、一 ^一端部及—第二端部，該第―、第二端部係分別-體銜 接於該身部-端，並分觀伸至該第―、第二端面，該第 一、第二端部之外㈣分別自與該身部銜接之處朝該第 -、第二端面漸縮；以及該等剖溝分別具有—開口，且該 等剖溝包含有複數個第-剖溝及複數個第二剖溝，各該第 一剖溝之如係位於該第—端面，各該第二㈣之開口係 Γ該第二端面。藉此，轉性筒夾具有良好之收縮彈 /可用以央持外徑在一相當範園内之工件，因此可節省 使用者購買彈性筒夾之花費。 本創作之次一目的在於提供1車床主軸裝置，其不 M391436 99年7月08日修正替換頁 需更換不同的彈性筒夾，即可用以夾持外徑在一相當範圍 内之工件，因此可提高使用者之工作效率。M391436 X heart July 8, 1999 revised replacement hundred five, new description: -__ two 1: tube exchange shell [new technical field] This creation is related to the spindle device of the lathe, _ is _ an elastic collet And a lathe spindle device using the elastic collet. [Prior Art] When a conventional automatic lathe is used for mass production, an elastic collet is often provided in a spindle device thereof, and a force is applied by means of oil or air pressure to make the elastic collet radially elastic. Shrink to hold a workpiece to be machined. In this way, the portion of the workpiece exposed to the outside of the spindle device can be processed by the operator. After the machining of the portion is completed, the force of the elastic collet is released, and the workpiece is outwardly removed. Move out a part and then process the part. The elastic collet of the above-mentioned conventional lathe spindle device has a conical shape in which the outer diameter gradually expands toward the rear end, and the middle and rear sections which are connected to the rear of the front section are gradually reduced in outer diameter to the rear end. Conical, and the elastic tube _ clip has a plurality of grooves extending from the rear end toward the front end by a considerable distance; in addition, the shaft hole of the lathe main shaft is provided with a conical surface having a shape complementary to the rear portion of the elastic tube In order to tightly press the elastic cylinder to lose the rear section, so that f is radially contracted. However, the aforementioned shrinkage range of the elastic collet is relatively small, and 0 can only be used to clamp the workpiece whose outer diameter is within a relatively small range, otherwise it is necessary to use another elastic collet which conforms to the outer diameter of the workpiece; Moreover, when it is tight, the conical surface in the shaft hole will be attached to the elasticity in a large area. The same folder, - caused. Both are not easy to divide *^. In July 2008, the replacement page was revised. In other words, the user needs to replace the different elastic cylinders according to the different outer diameters. This is not only costly, but also makes it costly to replace the elastic tube. The escort is still in need of improvement. [New content] ★ In view of the above-mentioned shortcomings, the main purpose of this creation is to provide a flexible collet, which has a good shrinkage elasticity. Therefore, the applicable outer diameter of the workpiece is large, which saves the user the cost of purchasing the elastic collet. In order to achieve the above object, the elastic tube inflammation provided by the present invention comprises a body having a first end surface, a second end surface, and a shaft hole extending through the first and second end faces, the body further having a majority a sulking groove for causing the body to be elastically contracted radially to dissipate a workpiece that is disposed in the shaft hole; the elastic collet is characterized in that the body has a body portion, an end portion, and a second end portion, the first and second end portions are respectively coupled to the body-end end, and extend to the first and second end faces, and the first and second end portions (four) The first and second end faces are respectively tapered from the joint with the body; and the intersecting grooves respectively have an opening, and the intersecting grooves include a plurality of first-ditch grooves and a plurality of second dividing grooves Each of the first trenches is located at the first end surface, and each of the second (four) openings is coupled to the second end surface. Thereby, the reversing collet has a good shrinking bomb / a workpiece that can be used to hold the outer diameter in a relatively uniform garden, thereby saving the user the cost of purchasing the elastic collet. The second purpose of this creation is to provide a 1 lathe spindle device, which is not M391436. On July 08, 1999, the replacement page needs to be replaced with different elastic collets, which can be used to clamp workpieces with an outer diameter within a certain range. Improve user productivity.
為達成上述目的，本創作所提供之車床主軸裝置包含 ?:主軸、一外蓋’以及上述該彈性筒夾。該主軸具有一 氣室、-通道及-施力件，該通道具有一入口，該施力件 具有一第-錐形孔，該施力件係可受該氣室内之氣壓帶動 而於該通道内-較遠離該入口之第一位置及一較靠近該入 ^之第二位置之間移動。該外蓋具有一第二錐形孔，該外 盍係固設於該主軸之通道入口外，且該第二錐形孔係與該 通道連通。該彈性筒夾係設於該主軸之施力件及該外蓋之 間，該施力件自該第一位置朝該第二位置移動的過程令， 該彈性筒夾之第-端部及第二端部會分別沿該施力件之第 一錐形孔及該外蓋之第二錐形孔相對滑移，並同時徑向地 彈性收縮，以夾持一穿設於該軸孔之工件。藉此，該車床 主軸裝置可用以夹持外徑在—相當範圍内之工件，只要使 用者所欲加工之多數個工件外徑都在該範圍内，則不需更 換該裝置中之彈性筒炎，即可接連著㈣等工件進行加 工，因此可提高使用者之工作效率。 有關本創作所提供之彈性筒夹及使用該彈性筒失之車 床主軸裝置的詳細構造、特點、組裝或使用方式’將於後 續的實施方式詳細說明中予以描述。然而，在本創作領域 中具有通*知識者應能瞭解，該等詳細說明以及實施 作所列舉的特定實施例’僅係用於說明本創作，並非用以 一-限制本創作之專利-肀請,範圍。 9年7月08曰修正替換頁 【實施方式】 明^I將藉由所列舉之實關配合隨附之圖式，詳細說 本創作之技術内容及特徵，其中： 第一圖為本創作一較佳實施例所提供之車床主軸裝置 之立體分解圖； 、 第二圖為本創作該較佳實施例所提供之車床主軸裝置 中之一彈性筒夾之立體圖； 第三圖為一剖視圖，顯示本創作該較佳實施例所提供 之車床主軸裝置之一施力件位於一第一位置之態樣；以及 第四圖為一剖視圖’顯示本創作該較佳實施例所提供 之車床主軸裝置之施力件位於一第二位置之態樣。 s月先參閱第一圖’本創作一較佳實施例所提供之車床 主轴装置10包含有一主軸20、一外蓋30，以及一彈性筒 失40。 請再參閱第三圖及第四圖，該主轴20具有一氣室 21、一通道22及一施力件23。該氣室21中設有一活塞 24 ’係將該氣室21分隔成一第一空間211及一第二空間 212 ’藉由控制該第一、第二空間211、2Π内之氣壓差可 使該活塞24於該氣室21内直線往復移動。該施力件23 係為一管體，其一端部具有一第一錐形孔232，另一端部 則藉由軸承26而樞接於該活塞24之内周緣，該施力件 23係與該活塞24產生相對之徑向轉動’並可以產生轴向 之同步務_動.，..可隨該氣室21之第一、第二空間211、212 年7月08曰修正替換頁 二 ' 内氣壓差的變化而於該通道22内一第一位置pi (如第一 圖所示）及一第二位置P2 (如第四圖所示）之間移動。 該通道22具有一入口 222，該施力件23位於該第二位置 P2時係較其位於該第一位置P1時更接近該通道22之入 口 222。此外’該主轴20中間段處設有一環齒27，用、 供一連結於動力源馬達（圖中未7rO之皮帶(圖中木丁） 套接，藉以帶動主轴20轉動。 該外蓋30係固設於該主軸20之通道22入口 222 外’且該外蓋30具有一第二錐形孔32，係與該主轴2〇 之通道22連通。 請參閱各圖式，該彈性筒失40包含有一本體，今 本體50具有一第一端面51、一第二端面52，以及一貫穿 該第一、第二端面51、52之軸孔53。該本體5〇可軸向 地區分為一身部54、一第一端部55及一第二端部％，該 第一、第二端部55、56係分別一體銜接於該身部54二 端，並分別延伸至該第一、第二端面51、52，該第一、 第二端部55、56之外徑係分別自與該身部54銜接之處朝 該第一、第二端面51、52漸縮。該本體5〇更設有複數個 第一剖溝57及複數個第二剖溝58，在本實施例中，該本 體50具有八個第一剖溝57及八個第二剖溝％，各該第 剖溝57係自其一位於該第一端面51之開口 572平行該 軸孔53方向地剖過該第一端部55並延伸至該身部％ , 而各該第二剖溝58係自其一位於該第二端面52之開口 582平行該軸孔53方向地.剖過該第二端部％並延伸至該 M391436 99年7月〇8日修正替換頁 身部54。前述該等剖溝57、58之延二 繞該本體50軸向交錯地等距分佈，且該等第一剖溝”及 第一剖溝58之開口 572、582係分別等間距地分佈於該第 知面51及該第一端面52。該彈性筒夾4〇係設於該主 轴20之通道22，並位於該施力件23及該外蓋扣之間， 且該通道22内凸伸有一插銷25，係插設於該彈性筒夹4〇 之一定位溝59，以使該彈性筒夾40僅可相對該主轴2〇 直線移動而不可轉動。 上述該車床主軸裝置10係用以夾持-待加工之工件 60’並帶動該工件60旋轉，使該車床可利用一刀具（圖 中未不）對該工件60進行加工。當使用者要將該工件60 設置於該車床主轴裝置1〇時，係先使該施力件23位於該 第-位置P1 ’再將該工件6〇穿設於該主轴2〇之通道 22，亦即’將該工件60穿過該彈性筒夾4〇之轴孔^。 調整好該王件6G之位置後，再使該抱力件23自該第一位 置P1朝該第-位置P2移動，過程令該施力件會以其 第一錐形孔232之孔壁推抵該彈性筒夾40之第-端部 55 ’進而使4第-端部56推抵到該外蓋3G之第二錐形孔 32的孔^，然後該彈性筒夾4G之第一端部55及第二端 部56會分別沿二錐形孔232、32孔壁相對滑移 ，並同時 徑尚地彈性收縮’如此—來，該彈性筒夾4G之内徑會逐 漸縮小’最後夾緊該巧6〇。之後，只要使該施力件23 朝該第-位置P1方向移動’即可使該彈性筒夾4〇恢復原 狀’因而不再失緊該工件6〇。 8 99年7月08日修正替換頁 ^述本作所提供之車床主軸裝置巾由於該彈 =失40具有良好之收縮彈性，可用以夾持外徑在一相 4圍内之工件$因此’只要使用者所欲加工之多數個工 件外彳空都在該範圍内，則不需更換該裝置10中之彈性筒 失40 ’ .即可接連著對該等工件進行加工，如此一來不 但可節省使用者購買彈性筒夾之花費，更可提高使用者之 工作效率。 最後，必須再次說明，本創作於前揭實施例中所揭露 的構成元件’僅為舉例說明，並非用來限制本案之範圍， 其他等效元件的替代或變化，亦應為本案之申請專利範圍 所涵蓋。 圖 式簡單說明】 99年7月08 曰修正替換頁 軸裝置 之4::本創作-較佳實施例所提供之車床- 置 第二圖為本創作該較佳實施綱提供之車床主 一彈性筒夾之立體圖； 之朿ί二圖為—剖視圖’顯示本創作該較佳實施例所提供 主軸裝置之-施力件位於位置之態樣；以及 於一第二位置之態樣 第四圖為_剖視圖’顯示本創倘較佳實施例所提供 單床主軸裝置之施力件位： 【主要元件符號說明】 車床主軸裝置10 主軸20 氣室21 第一空間211 第二空間212 通道22 入口 222 施力件23 第一錐形孔232 第一位置Ρ1 第二位置Ρ2 活塞24 插銷25 軸承26 環齒27 外蓋30 第二錐形孔32 彈性筒失40 本體50 第一端面51 第二端面52 軸孔53 身部54 …第二端部55 M391436 第二端部56 開口 572 開口 582 工件60 99年7月08日修正替換頁 第一剖溝57 第二剖溝58 定位溝59In order to achieve the above object, the lathe spindle device provided by the present invention comprises: a main shaft, an outer cover', and the above-mentioned elastic collet. The main shaft has a gas chamber, a passage and a force applying member, the passage has an inlet, and the force applying member has a first-conical hole, and the force applying member is driven by the air pressure in the air chamber to be in the passage. Moving away from the first position of the inlet and a second position closer to the inlet. The outer cover has a second tapered bore secured to the passage inlet of the main shaft and the second tapered bore is in communication with the passage. The elastic collet is disposed between the biasing member of the main shaft and the outer cover, and the process of moving the biasing member from the first position toward the second position causes the first end and the second end of the elastic collet The ends are relatively slid along the first tapered hole of the urging member and the second tapered hole of the outer cover, and are simultaneously elastically contracted radially to clamp a workpiece penetrating the shaft hole. Thereby, the lathe spindle device can be used to clamp a workpiece having an outer diameter within a certain range, and as long as the outer diameter of a plurality of workpieces to be processed by the user is within the range, the elastic tube inflammation in the device does not need to be replaced. , the workpiece can be processed in parallel with (4), so the user's work efficiency can be improved. The detailed construction, features, assembly or use of the elastic collet provided by the present invention and the spindle device using the elastic cylinder will be described in the detailed description of the subsequent embodiments. However, it should be understood by those skilled in the art that the detailed description and the specific embodiments set forth herein are merely used to illustrate the present invention, and are not intended to limit the present invention. Please, range. 9th Anniversary, July 08曰Replacement Page [Embodiment] Ming ^I will explain the technical content and features of this creation in detail by the accompanying drawings and accompanying drawings, in which: The perspective view of the lathe spindle device provided by the preferred embodiment; the second view is a perspective view of one of the elastic collet of the lathe spindle device provided by the preferred embodiment; the third view is a cross-sectional view The first embodiment of the lathe spindle device provided by the preferred embodiment is in a first position; and the fourth view is a cross-sectional view showing the lathe spindle device provided by the preferred embodiment of the present invention. The force applying member is in a second position. Referring to the first figure, the lathe spindle device 10 of the preferred embodiment of the present invention comprises a spindle 20, an outer cover 30, and an elastic cylinder 40. Referring to the third and fourth figures, the main shaft 20 has a gas chamber 21, a passage 22 and a force applying member 23. The piston chamber 24 is provided with a piston 24' to divide the air chamber 21 into a first space 211 and a second space 212'. The piston can be controlled by controlling the air pressure difference in the first and second spaces 211, 2 24 linearly reciprocates within the air chamber 21. The force applying member 23 is a tubular body having a first tapered hole 232 at one end thereof and a central peripheral edge of the piston 24 by a bearing 26, and the biasing member 23 is coupled to the piston 24 Produce a relative radial rotation 'and can generate an axial synchronization. -.. can be corrected with the first and second spaces of the gas chamber 21, 211, July 08, 224. The change is between a first position pi (shown in the first figure) and a second position P2 (shown in the fourth figure) in the channel 22. The passage 22 has an inlet 222 which is located at the second position P2 closer to the inlet 222 of the passage 22 than when it is at the first position P1. In addition, a ring tooth 27 is arranged at the middle portion of the main shaft 20 for connecting a power source motor (the belt of the 7rO in the figure (the wooden figure in the figure) is socketed, thereby driving the main shaft 20 to rotate. The outer cover 30 has a second tapered hole 32 that communicates with the passage 22 of the main shaft 2〇. Referring to the drawings, the elastic tube 40 is included. The main body 50 has a first end surface 51, a second end surface 52, and a shaft hole 53 extending through the first and second end surfaces 51, 52. The body 5 can be axially divided into a body portion 54. a first end portion 55 and a second end portion %, the first and second end portions 55, 56 are integrally connected to the two ends of the body portion 54 and extend to the first and second end faces 51, respectively. The outer diameters of the first and second end portions 55 and 56 are respectively tapered toward the first and second end faces 51 and 52 from the joint with the body portion 54. The body 5 is further provided with plural numbers. a first dividing groove 57 and a plurality of second dividing grooves 58. In the embodiment, the body 50 has eight first dividing grooves 57 and eight second dividing grooves %, each of which has a The first groove 54 is formed by the opening 572 of the first end surface 51 parallel to the shaft hole 53 and extends to the body portion %, and each of the second groove grooves 58 An opening 582 of the second end surface 52 is parallel to the axial hole 53 and is cut along the second end portion and extends to the M391436. The modified replacement body portion 54 is formed on July 8th, 1999. The extensions of the grooves 57 and 58 are axially staggered and equidistantly distributed around the body 50, and the openings 572 and 582 of the first and second grooves 58 are equally spaced on the first surface 51. And the first end surface 52. The elastic collet 4 is disposed on the passage 22 of the main shaft 20, and is located between the urging member 23 and the outer cover buckle, and a pin 25 is protruded in the passage 22, and the spigot is inserted. The elastic collet 40 is disposed in a positioning groove 59 of the elastic collet 4 so that the elastic collet 40 can only move linearly relative to the main shaft 2〇 without being rotatable. The lathe spindle device 10 is used for clamping the workpiece to be processed. 60' drives the workpiece 60 to rotate, so that the lathe can process the workpiece 60 with a cutter (not shown). When the workpiece 60 is disposed on the lathe spindle device 1 , the biasing member 23 is first placed at the first position P1 ′ and the workpiece 6 is bored through the passage 22 of the main shaft 2 , that is, The workpiece 60 passes through the shaft hole of the elastic collet 4。. After the position of the king piece 6G is adjusted, the holding force member 23 is moved from the first position P1 toward the first position P2, and the process applies the force. The member pushes against the first end portion 55' of the elastic collet 40 with the wall of the first tapered hole 232, thereby pushing the fourth end portion 56 against the second tapered hole 32 of the outer cover 3G. The first end portion 55 and the second end portion 56 of the elastic collet 4G are respectively relatively slid along the walls of the two tapered holes 232, 32, and are simultaneously elastically contracted by the same amount. The inner diameter of the elastic collet 4G will gradually shrink. Thereafter, by moving the urging member 23 toward the first position P1, the elastic collet 4 〇 can be restored to its original shape, and the workpiece 6 不再 is no longer lost. 8 July 08, 1999 Amendment Replacement Page The lathe spindle device provided by this tool has good shrinkage elasticity due to the bullet=40, which can be used to clamp the workpiece with the outer diameter in one phase and 4 circumferences. As long as the hollowing out of the plurality of workpieces to be processed by the user is within the range, the elastic tube in the device 10 is not required to be replaced 40 '. The workpieces can be processed in succession, so that not only can the workpiece be processed. It saves the user the cost of purchasing the elastic collet, and can improve the working efficiency of the user. Finally, it must be explained again that the constituent elements disclosed in the foregoing embodiments are merely illustrative and are not intended to limit the scope of the present invention. Alternatives or variations of other equivalent elements should also be the scope of the patent application of the present application. Covered. BRIEF DESCRIPTION OF THE DRAWINGS] July 08, 1999 曰Revised replacement of the page axis device 4:: The lathe provided by the present preferred embodiment - the second figure is the main elastic of the lathe provided by the preferred embodiment A perspective view of the collet; FIG. 2 is a cross-sectional view showing the position of the biasing member of the spindle device provided in the preferred embodiment of the present invention; and FIG. 4 is a view of the second position. _cross-sectional view' shows the force-applying position of the single-bed spindle device provided by the preferred embodiment: [Key element symbol description] Lathe spindle device 10 Spindle 20 Air chamber 21 First space 211 Second space 212 Channel 22 Entrance 222 Applying member 23 First tapered hole 232 First position Ρ1 Second position Ρ2 Piston 24 Pin 25 Bearing 26 Ring tooth 27 Cover 30 Second tapered hole 32 Elastic tube lost 40 Body 50 First end face 51 Second end face 52 Shaft hole 53 body 54 ... second end 55 M391436 second end 56 opening 572 opening 582 workpiece 60 July 08, 1999 correction replacement page first section groove 57 second section groove 58 positioning groove 59