M256246 捌、新型說明 _ 二 (新型說明應敘明：新型所屬之技術領域、先則技術、內容、實施方式及圖式簡單說明) 【新型所屬之技術領域】 本創作係與管件的加工裝置有關，更詳而言之是指一 種加工管件使用之夾具。 5 【先前技術】 一般用以對管件加工使用的機具有多種，以車床為 例，如第一圖所示’其揭露一央頭1之夾爪la夾緊一管件 2 一端，一尾座3之頂針3a前端緊抵於該管件2之另一端 面，於車削時，利用控制一主軸4連動該夾頭1產生高速 10 旋轉並帶動該管件2以相同速度轉動，而該頂針3a對管件 2提供穩定的支撐，使得管件2維持在同一軸線上轉動， 且可避免管件2之該端產生不當的晃動，一車刀5則對快 速轉動的管件2表面進行車削以製得成品。 上述車床結構主要係賴以夾頭1上的夾爪la對該管件 2 —端產生夾固，致使管件2可隨著夾頭丨的高速旋轉而 轉動，惟，以夾爪la對管件2夾固的方式在實際的加工製 心中將把車刀5車削路;ff阻擒於失爪la外部，亦即，管件 15 20 2為夾爪13所夾設的部位未被車削加工，其造成夾頭i必 須停止運轉且將夾爪la#釋後取下管件2，祕管件2調 份位於尾座3 -方，爾後重新以夾爪1a 可製Γ “一刼 二：整的成品；然而由前述可歸納出下列缺失： 得i皮疋整的成口口必須經過至少二次的車削加工方可製 对，具乂成加工效率不彰。 續次頁 (新型說明頁不敷使用時，請註記並使用續頁) «4- M256246 ____ 新型說明書續頁 2. 在第二次的車削加工前置作業中，當夾爪對經過第一 次車削後的管件表面為夾緊時，容易破壞管件被夾緊部位 的表面。 3. 上述夾固方式不適合於對中空狀的管件為夾持，即， 5 若夾緊力量過大時易使中空狀的管件受壓變形，若夾緊力 量不足時則容易發生管件於夾頭高速轉動時發生飛脫的危 險。 4. 前述加工方式不易製得管件的前、後端面為平行，以 及難以獲得管件外徑與前、後端面呈垂直。 10 有鑒於此，本案創作人乃經詳思細索，並積多年從事 相關行業之研究開發經驗，終而有本創作之產生。 【新型内容】 本創作之主要目的在於提供一種加工管件使用之夾 15 具，其固持方式可對管件於一次的車削加工中即完成製 作，具提昇加工效率。 本創作之次要目的在於提供一種加工管件使用之夾 具，其可對管件加工製得前、後端面平行，以及管件外徑 與前、後端面垂直的成品。 20 本創作之另一目的在於提供一種加工管件使用之夾 具，其提供料爵端酋前幸射會業於_次於加^Μ中倉 成且加工容易。 本創作之又一目的在於提供一種加工管件使用之夾 具，其固持方式不會對管件表面造成破壞。 -5- M256246 新型說明書續頁 緣以達成上述之目的，本創作所提供之一種加工管件 使用之夾具，其具有一前座與一後座，一管件置於該前座 與後座之間；其特徵在於：該前座包含有一主軸、一從動 件、一連動桿與一基準面，其中，該主軸可快速地旋轉， 5 其具有一中心軸孔，該從動件固接於該主軸上，其具有一 與該中心軸孔同軸設置的突出端，該突出端可作用於該管 件前端，該連動桿穿設於該中心軸孔中，其可受一動力源 驅使而沿軸向往復移動，該基準面位於該連動桿前端，其 隨著連動桿的往復移動而於一校準位置與一加工位置間移 10 動；該後座具有一與前述主軸中心軸孔同軸設置的頂針， 該頂針前緣可作用於該管件後端；藉由上述結構，當該前 座的突出端與後座的頂針同時作用於管件的前、後端，且 管件前端端面抵接於校準位置的基準面後，控制該連動桿 後退且該基準面退移至該加工位置，此時管件前端與基準 15 面相隔一距離，之後驅使該主軸快速旋轉得以同步帶動該 管件轉動，據此可輕易地對該管件的前、後端面及外徑進 行切削加工。 【實施方式】 20 以下，茲列舉本創作之較佳實施例，並配合下列圖示 詳細說明於后r其冲: ------------- ---------------------------------------------- 第一圖為一般車床之夾頭與尾座設置之簡易示圖。 第二圖為本創作一較佳實施例之固持示意圖，說明管 件一端抵觸於一基準面上。 -6- M256246 新型說明書@頁 第三圖為本創作之撐張件立體圖。 第四圖類同第二圖，說明管件一端與基準面相隔一距 離，可供車刀對管件的兩端面進行車削。 5 請參閱第二、三圖所示，本創作加工管件使用之夾具 主要由一前座10、一後座20與一撐張件30組成，其適合 於對中空狀的管件為固持使用，前述中空狀管件成品如汽 缸活塞筒體，以下通稱管件40 ;在加工時，該管件40係 被置於該前座10與後座20之間；以下茲將各組件及其相 10 關聯位置說明於後： 該前座10由一主軸11、一連動桿12、一滑座13、三 支導柱14、數螺栓15(17)、一從動件16、一定位盤18與 一扇型頂針19所構成，其中： 該主軸11可被控制快速旋轉，其具有一鼻端111、一 15 中心軸孔112與數螺接孔113，該等螺接孔113呈等間距 分布且平行該中心軸孔112，由於主軸11為車床既有之結 構，於此不對其被控制轉動的方式贅述。 該連動桿12穿設於該中心軸孔112中，其前緣固接該 滑座13，該連動桿12後端則連接有一拉桿（圖未示），該拉 20 桿可受油壓驅使而帶動該連動桿12於該中心軸孔112中產 生往復移動。 -------------------— 該滑座13呈圓盤形，其外徑大於該連動桿12外徑， 且滑座13上設有三個等間距離且貫穿滑座13頂、底面的 連接孔131，各該連接孔131並具有一肩部132。 M256246 新型說明書續g 該等導柱14為直徑較小的圓桿體，其等兩端面分別凹 製有-呈軸向設置的螺孔141〇42),其中，三支長度較短 的螺栓15各別穿過—連接孔131，螺栓15頭部ι5ΐ抵止 於肩部I32處，螺栓15末段152則鎖入螺孔141中，據以 5使知各導柱丨4被固接於該滑座丨3上。 該從動件16由—本體161及一圓形凸柱162構成，該 本體161具有一圓形内孔163、一外環面164與一封閉狀 的側壁165 ’數呈階級狀的穿孔166貫穿該本體161，以及 三個呈等間距設置的貫孔167分布於該側壁165上，各貫 10孔167兩端分別連通該内孔163與側壁165外部；而該凸 柱162自該側壁165外部突伸形成，一突出端ι68位於該 凸柱162前段且呈漸縮錐狀。於組裝該從動件16時，先以 其内孔163開放端面面向該主軸π，接著，令各貫孔167 對準各導柱14 一端，再緩慢地將從動件16往主軸u方向 15移動，致導柱14穿過貫孔167且本體161底面觸抵該主軸 11為止，之後再以數長度較長的螺栓17依序穿過上述穿 孔166與螺接孔113後，使得該從動件ι6固接於該主軸 11上且王位於鼻端111則方’其造成該凸柱162的中心軸 線與該中心軸孔112同軸設置。 20 該定位盤丨8具有一平板181、一環形筒身182、一中 心穿孔 ro^一 板181輪廓為圓形，其外側面形成〜平整的基準面186， 三個連接孔187貫穿該平板181且各連接孔187具有一肩 部188 ’该请身182自違平板181周緣朝後伸設而成，該 -8- M256246 新型議明書_實M256246 新型, new type description _2 (new type description should be stated: the technical field, prior art, content, implementation and drawings of the new type are briefly explained) [new technical field] This creation is related to the processing equipment of pipe fittings More specifically, it refers to a fixture used for processing pipe fittings. 5 [Prior art] There are many kinds of machines generally used for processing pipe fittings. Take a lathe as an example. As shown in the first figure, 'the exposed jaw 1 of a central head 1 clamps a pipe 2 at one end and a tailstock 3'. The front end of the thimble 3a is abutted against the other end surface of the tube 2. When turning, the main shaft 4 is used to control the chuck 1 to produce high speed 10 rotation and drive the tube 2 to rotate at the same speed. The thimble 3a is against the tube 2 Provide stable support, so that the pipe 2 can keep rotating on the same axis, and the end of the pipe 2 can be prevented from shaking improperly. A turning tool 5 can turn the surface of the pipe 2 that rotates quickly to obtain a finished product. The above lathe structure mainly relies on the clamping jaws 1 on the chuck 1 to clamp the pipe 2 to the end, so that the pipe 2 can rotate with the high-speed rotation of the chuck 丨, but the clamping jaws 1 clamp the pipe 2 The solid method will turn the turning tool 5 in the actual machining center; ff is trapped outside the lost jaw la, that is, the part sandwiched by the pipe 15 20 2 for the clamping jaw 13 is not turned, which causes the clamping The head i must stop running and release the clamp claw la # and take off the pipe fitting 2, the secret pipe fitting 2 is located in the tailstock 3-square, and then the clamp jaw 1a can be made again. "One: two: the finished product; The foregoing can be summarized as follows: The finished mouth must be turned at least twice before it can be paired, and the finished processing efficiency is not good. Continued page (when the new instruction page is insufficient, please use Note and use continuation sheet) «4- M256246 ____ New type manual continuation sheet 2. In the second turning pre-operation, when the gripper clamps the surface of the pipe after the first turning, it is easy to damage the pipe The surface of the clamped part. 3. The above clamping method is not suitable for hollow pipe fittings. Clamping, that is, if the clamping force is too large, the hollow pipe will be deformed under pressure, and if the clamping force is insufficient, the pipe will easily escape when the chuck rotates at high speed. 4. The aforementioned processing method is not easy The front and rear end faces of the produced pipe fittings are parallel, and it is difficult to obtain the outer diameter of the pipe fittings to be perpendicular to the front and rear end faces. 10 In view of this, the creator of this case has carefully considered and accumulated many years of research and development experience in related industries [New content] The main purpose of this creation is to provide a clamp for processing pipe fittings. The holding method can be used to complete the production of pipe fittings in a single turning process, which improves processing efficiency. The secondary purpose of this creation is to provide a fixture for processing pipe fittings, which can process pipe fittings to produce finished products with parallel front and rear end faces and pipe fittings with outer diameters perpendicular to the front and rear end faces. 20 Another purpose of this creation is to provide A fixture used for processing pipe fittings, which provides the material forehead and foreplay industry to be inferior to Jiazhong Zhongcangcheng and is easy to process. Another purpose of this creation The purpose is to provide a fixture for processing pipe fittings, whose holding method will not cause damage to the surface of the pipe. -5- M256246 New Manual Continuation Sheet Margin to achieve the above purpose, a fixture for processing pipe fittings provided by this creation, which has a A front seat and a rear seat, and a tube is placed between the front seat and the rear seat. It is characterized in that the front seat includes a main shaft, a follower, a linkage rod and a reference surface, wherein the main shaft can rotate rapidly, 5 It has a central shaft hole, the follower is fixed to the main shaft, it has a protruding end coaxially arranged with the central shaft hole, the protruding end can act on the front end of the pipe, and the linkage rod is passed through the The central shaft hole can be reciprocated in the axial direction driven by a power source. The reference plane is located at the front end of the linkage rod. It moves 10 times between a calibration position and a machining position as the linkage rod reciprocates. The rear seat has a thimble coaxially arranged with the central axis hole of the main shaft, and the leading edge of the thimble can act on the rear end of the tube. With the above structure, when the protruding end of the front seat and the rear seat's After the needle acts on the front and rear ends of the tube at the same time, and the front end of the tube abuts against the reference surface of the calibration position, the control rod is controlled to retreat and the reference surface is moved to the processing position. At this time, the front end of the tube is separated from the reference 15 surface. After a distance, the main shaft is driven to quickly rotate to synchronously drive the pipe to rotate, so that the front and rear end faces and the outer diameter of the pipe can be easily cut. [Embodiment] 20 Below, the preferred embodiments of this creation are enumerated, and are described in detail below with the following illustrations: ------------- ------- --------------------------------------- The first picture shows the chuck and tail of a general lathe A simple illustration of the seat settings. The second figure is a schematic diagram of the holding of a preferred embodiment of the invention, illustrating that one end of the pipe abuts against a reference surface. -6- M256246 New Manual @Page The third picture is a perspective view of the supporting piece of the creation. The fourth diagram is similar to the second diagram, and illustrates that one end of the pipe is separated from the reference plane by a turning tool for turning both ends of the pipe. 5 Please refer to the second and third figures. The fixture used in this creative processing of pipe fittings is mainly composed of a front seat 10, a rear seat 20 and a stretcher 30. It is suitable for holding and holding hollow pipe fittings. The finished pipe-shaped products such as cylinder piston cylinders are hereinafter collectively referred to as pipe-fittings 40; during processing, the pipe-fittings 40 are placed between the front seat 10 and the rear seat 20; the respective components and their associated positions are described below: The front seat 10 is composed of a main shaft 11, a linkage rod 12, a slide seat 13, three guide posts 14, a number of bolts 15 (17), a follower 16, a positioning plate 18, and a fan-shaped thimble 19. Among them: The main shaft 11 can be controlled to rotate rapidly, and it has a nose 111, a 15 central shaft hole 112 and several screw connection holes 113. These screw connection holes 113 are distributed at equal intervals and parallel to the central shaft hole 112. The main shaft 11 is an existing structure of a lathe, and the manner of being controlled to rotate is not described in detail here. The interlocking rod 12 passes through the central shaft hole 112, the leading edge of the interlocking rod 12 is fixedly connected to the sliding seat 13, and the rear end of the interlocking rod 12 is connected with a pull rod (not shown). The pull 20 rod can be driven by oil pressure. The link rod 12 is driven to reciprocate in the central shaft hole 112. -------------------— The slide base 13 is in the shape of a disk, and its outer diameter is larger than the outer diameter of the linkage rod 12, and three equal spaces are provided on the slide base 13 The connecting holes 131 that pass through the top and bottom surfaces of the slide base 13 at a distance and each have a shoulder portion 132. M256246 New Manual Continued g These guide posts 14 are round rods with smaller diameters, and their two end surfaces are respectively recessed with screw holes 141 042 which are arranged axially. Among them, three shorter bolts 15 Pass each through—the connection hole 131, the head of the bolt 15 abuts on the shoulder I32, and the end 152 of the bolt 15 is locked into the screw hole 141. According to 5, the guide posts 丨 4 are fixed to the Slide 丨 3. The follower 16 is composed of a main body 161 and a circular convex post 162. The main body 161 has a circular inner hole 163, an outer annular surface 164, and a closed side wall 165. A number of step-like perforations 166 pass through. The main body 161 and three through holes 167 arranged at equal intervals are distributed on the side wall 165, and two ends of each through hole 167 communicate with the inner hole 163 and the outside of the side wall 165 respectively; and the protruding post 162 is from the outside of the side wall 165 A protrusion is formed, and a protruding end ι68 is located at the front section of the convex pillar 162 and is tapered. When assembling the follower 16, first open the end surface of the inner hole 163 facing the main shaft π, then, align the through holes 167 with one end of each guide post 14, and then slowly follow the follower 16 in the direction u of the main shaft 15 Move until the guide post 14 passes through the through hole 167 and the bottom surface of the body 161 touches the main shaft 11, and then a number of longer bolts 17 pass through the above-mentioned perforation 166 and the screw hole 113 in order, so that the driven The component 6 is fixed on the main shaft 11 and the king is located on the nose 111. The central axis of the protruding post 162 is coaxial with the central shaft hole 112. 20 The positioning plate 8 has a flat plate 181, a circular cylindrical body 182, a central perforated plate, and a plate 181 whose outline is circular, and its outer surface forms a flat reference surface 186, and three connection holes 187 penetrate the flat plate 181. And each connection hole 187 has a shoulder 188 'The body 182 should be extended backward from the periphery of the flat plate 181, the -8- M256246
中心穿孔183位於該平板181的中央位置，該第一環槽184 自該筒身182内面近末端處凹製形成，該第二環槽185則 自中心穿孔183的内緣凹製形成，二墊圈189分別塞設於 該第一環槽184與第二環槽185中，·如第二圖所示，該定 5位盤I8利用螺栓15穿設連接孔187且鎖入導柱Η之螺孔 142後與該連動桿丨2、滑座13構成可一起移動，組裝後， 該筒身182内環面與該從動件16本體161之外環面164配 合，該中心穿孔丨83恰供該凸柱丨62穿過。， 該扇裂頂針19具有一環錐面191及於底面凹設有—套 10 接孔192，該套接孔192可與前述錐狀突出端168配合， 使得該扇型頂針丨9呈套設於該從動件16凸柱162外部。 該後座20具有一與前述主軸11中心軸孔112同轴設 置的錐狀頂針21。 該撐張件30如圖三所示，其為具有一軸孔31且環面 15 上沿軸向開設有數道剖溝32的彈性套筒，該撐張件3〇具 有呈錐孔狀的頭端33與尾端34，當撐張件30塞設於管件 40的内部時，該撐張件30的頭端33與尾端34以不超過 管件40前、後端為佳；又必須一提的是，上述撐張件3〇 為一種可配合管件40内徑大小的規格產品。 20 以上即本創作各構件之說明，接著再將其對管件4〇固 持加工方 ~s_______一 請參閱第二圖所示，加工前，先把該撐張件塞設於 管件40的内部致撐張件30外環面與管件4〇内面輕抵接 觸，該扇型頂針19套置於該凸柱162前端外部，且控制該 -9- M256246 _ 新型說明書 連動桿12相對該主軸11伸出，其連帶使得該定位盤18相 對該從動件16往該後座20方向移動，此時的基準面186 位於一校準位置P1，之後，將該管件40置於該前座10與 後座20之間且管件40前端端面抵接於該基準面186上，The central perforation 183 is located at the center of the flat plate 181. The first annular groove 184 is recessed from the near end of the inner surface of the barrel 182, and the second annular groove 185 is recessed from the inner edge of the central perforation 183. Two washers 189 is respectively inserted in the first ring groove 184 and the second ring groove 185. As shown in the second figure, the fixed-position plate I8 is provided with a bolt 15 through a connection hole 187 and locked into the screw hole of the guide post Η. After 142, it can be moved together with the link rod 2 and the slide 13. After assembly, the inner ring surface of the barrel 182 cooperates with the outer ring surface 164 of the follower 16 body 161, and the center perforation 83 is just for the The convex post 62 passes through. The fan-split thimble 19 has a ring-shaped conical surface 191 and a sleeve 10 recess 192 recessed from the bottom surface. The sleeve-connecting hole 192 can cooperate with the aforementioned tapered protruding end 168, so that the fan-shaped thimble 9 is sleeved on The follower 16 is external to the convex post 162. The rear seat 20 has a conical thimble 21 arranged coaxially with the central shaft hole 112 of the main shaft 11. As shown in FIG. 3, the stretcher 30 is an elastic sleeve having a shaft hole 31 and a plurality of grooves 32 provided on the torus 15 in the axial direction. The stretcher 30 has a tapered hole-shaped head end. 33 and the tail end 34, when the stay piece 30 is plugged inside the pipe 40, the head end 33 and the tail end 34 of the stay piece 30 preferably do not exceed the front and rear ends of the pipe piece 40; it must also be mentioned Yes, the above-mentioned extension member 30 is a specification product that can fit the inner diameter of the pipe member 40. 20 The above is the description of each component of this creation, and then hold it to the pipe fitting 40. ________ Please refer to the second picture. Before processing, the extension member is plugged into the inside of the pipe fitting 40. The outer ring surface of the brace member 30 is in light contact with the inner surface of the pipe member 40. The fan-shaped thimble 19 is placed outside the front end of the convex column 162 and controls the -9- M256246 _ new manual linkage lever 12 extends relative to the main shaft 11 , Which together causes the positioning plate 18 to move in the direction of the rear seat 20 relative to the follower 16. At this time, the reference surface 186 is located at a calibration position P1, and then the tube 40 is placed between the front seat 10 and the rear seat 20. And the end surface of the front end of the tube 40 abuts on the reference surface 186,
5 於此同時，該扇型頂針19前端伸入該軸孔31中，其環錐 面191與該撐張件30頭端33以錐面接觸，而該後座20頂 針21前段亦與撐張件30尾端34以錐面接觸，當後座20 頂針21被控制朝前座10方向移動時，將迫使該撐張件30 外徑擴大並緊貼於該管件40的内壁面，爾後控制該連動桿 10 12後退以及該基準面186退移到一加工位置P2,使得管件 40前端與基準面186相隔有一距離(如圖四所示），此時該 管件40仍為該扇型頂針19與該頂針21所夾制並緊抵，因 此，當驅使該主軸11快速旋轉時得以同步帶動該管件40 轉動，最後，利用控制一車刀50的車削路徑即可對管件 15 40的外徑及其前、後端面進行切削。 以下茲整理本創作的優點：5 At the same time, the front end of the fan-shaped thimble 19 extends into the shaft hole 31, and the ring cone surface 191 and the head end 33 of the stretcher 30 are in a tapered contact, and the front section of the thimble 21 of the rear seat 20 is also stretched. The tail end 34 of the piece 30 contacts with a tapered surface. When the back seat 20 and the thimble 21 are controlled to move toward the front seat 10, the outer diameter of the stay piece 30 will be forced to expand and closely fit the inner wall surface of the pipe piece 40, and then control the linkage The rod 10 12 retracts and the reference surface 186 moves back to a processing position P2, so that the front end of the tube 40 is separated from the reference surface 186 by a distance (as shown in FIG. 4). At this time, the tube 40 is still the sector ejector 19 and the The thimble 21 is clamped and abutted. Therefore, when the spindle 11 is driven to rotate rapidly, the pipe 40 can be synchronously rotated. Finally, by controlling the turning path of a turning tool 50, the outer diameter of the pipe 15 40 and its front 2. The rear end face is cut. Here are the advantages of this creation:
1.本創作結構尤適用於一種管件夾持使用，其可於一次 的車削加工中即對管件40的外徑、前、後端面完成車削作 業，故而大幅改善工作效率。 20 2.其於對管件40為固持時，主要藉由該撐張件30外徑 受推擠撐大而繁抵於管件40内面及形成固持，H不會有— 習用以夾爪夾固致管件40變形毀壞，或夾持力量不足之 慮。 3.本創作利用該扇型頂針19與該頂針21以錐面接觸方 -10- M256246 _____ 新型說明書續頁 式與該撐張件30配合，因此可穩定地對夾該撐張件30， 進而帶動該管件40轉動。 4. 本創作可對管件40加工製得前、後端面平行，以及 管件40外徑與前、後端面垂直的成品，至於管件40的内 5 孔加工，因非本創作之改良部分，故不予贅述。 5. 該定位盤18的筒身182不僅具有導引作用，更具有 防止切屑掉入從動件16與定位盤18之間的功能。 【圖示簡單說明】 10 第一圖為一般車床之夾頭與尾座設置之簡易示圖。 第二圖為本創作一較佳實施例之固持示意圖，說明管 件一端抵觸於一基準面上。 第三圖為本創作之撐張件立體圖。 第四圖類同第二圖，說明管件一端與基準面相隔一距 15 離，可供車刀對管件的兩端面進行車削。 【圖號說明】 10 前座 11 主軸 111 鼻端 112 軸孔 113 螺接孔 42 _______·?Φ 金4¾一 _______ _____________ 一 13 -¾ ^/7 ττ /月压— 131 連接孔 132 肩部 14 導柱 141 螺孔 142 螺孔 15 螺栓 20 11- M256246 151 頭部 152 末段 16 從動件 161 本體 162 凸柱 163 内孔 164 外環面 165 側壁 5 166 穿孔 167 貫孔 168 突出端 17 螺栓 18 定位盤 181 平板 182 筒身 183 中心穿孔 184 第一環槽 185 第二環槽 10 186 基準面 187 連接孔 188 肩部 189 墊圈 19 扇型頂針 191 環錐面 192 套接孔 20 後座 21 頂針 15 30 撐張件 31 軸孔 32 剖溝 33 頭端 34 尾端 40 管件 50 車刀 20 P1 校準位置 P2 加工位置 新型說明書續頁1. The creative structure is particularly suitable for a kind of pipe clamping use, which can complete the turning operation of the outer diameter, front and rear end faces of the pipe 40 in one turning process, so the work efficiency is greatly improved. 20 2. When holding the pipe member 40, it is mainly caused by the outer diameter of the support member 30 being pushed and stretched to reach the inner surface of the pipe member 40 and form a retainer. H will not be there. The pipe 40 may be deformed and damaged, or the clamping force may be insufficient. 3. This creation uses the fan-shaped ejector pin 19 and the ejector pin 21 to contact with each other in a tapered surface. -10- M256246 _____ The new manual continuation type fits with the stay piece 30, so it can stably clamp the stay piece 30, and then Drive the tube 40 to rotate. 4. This creation can process the pipe fittings 40 to make the front and rear end faces parallel and the outer diameter of the pipe fittings 40 perpendicular to the front and rear end faces. As for the inner 5 holes of the pipe fitting 40, it is not an improvement of this creation, so it is not I repeat. 5. The barrel 182 of the positioning plate 18 not only has a guiding function, but also has a function of preventing chips from falling between the follower 16 and the positioning plate 18. [Brief description of the icons] 10 The first picture is a simple illustration of the setting of the chuck and tailstock of a general lathe. The second figure is a schematic diagram of the holding of a preferred embodiment of the invention, illustrating that one end of the pipe abuts against a reference surface. The third picture is a perspective view of the extension piece of the creation. The fourth diagram is similar to the second diagram, and illustrates that one end of the pipe is separated from the reference plane by a distance of 15 and can be used for turning both ends of the pipe by a turning tool. [Illustration of the drawing number] 10 front seat 11 main shaft 111 nose 112 shaft hole 113 screw hole 42 _______ ·? Φ gold 4¾ 一 _______ _____________ one 13 -¾ ^ / 7 ττ / month pressure 131 connection hole 132 shoulder 14 guide Column 141 Screw hole 142 Screw hole 15 Bolt 20 11- M256246 151 Head 152 End 16 Follower 161 Body 162 Boss 163 Inner hole 164 Outer ring surface 165 Side wall 5 166 Perforation 167 Through hole 168 Protruding end 17 Bolt 18 Positioning Disk 181 Flat plate 182 Tube body 183 Central perforation 184 First ring groove 185 Second ring groove 10 186 Reference surface 187 Connecting hole 188 Shoulder 189 Washer 19 Fan type thimble 191 Ring cone surface 192 Socket hole 20 Back seat 21 Thimble 15 30 Extension piece 31 Shaft hole 32 Cut groove 33 Head end 34 End end 40 Pipe fitting 50 Turning tool 20 P1 Calibration position P2 Processing position New instruction manual continued
-12--12-