TWI353282B - Clamping apparatus and clamping method using the a - Google Patents
Clamping apparatus and clamping method using the a Download PDFInfo
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- TWI353282B TWI353282B TW95108188A TW95108188A TWI353282B TW I353282 B TWI353282 B TW I353282B TW 95108188 A TW95108188 A TW 95108188A TW 95108188 A TW95108188 A TW 95108188A TW I353282 B TWI353282 B TW I353282B
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13532821353282
六、發明說明: ' 【發明所屬之技術頜威】 [0001] 及在先 置及夾 本發明涉及一種失持裝置及失持方法,尤其係涉 學元件之加工中實現精確定心夾持功能之失持裝 持方法。 【先前技術】 [0002] 在光學技術領域’對組成各類光學系統之光學鏡片,如 透鏡、球面鏡、各類非球面鏡等’都要按光學設計之技 術要求進行粗磨、細磨、精磨、拋光、磨邊等研磨製作 ,這種過程於業界稱之為光學冷加工。 [0003]光學冷加工中之被加工光學鏡片,都要採用夾具固定進 - 行加工。先前技術中通常採用定心機進行所述研磨加工 w 。定心機係一種用於將各種形狀研磨成圓形之機器,其 原理係利用中空之失具固定工件(如透鏡等),並利用 泵等驅動裝置對失具之中空部分吸氣並將工件吸附於夾 具之一個夾持體上,當吸附後再將另一相同夾持體從另 φ 一端靠近,從而將工件夾持固定。最後利用高速旋轉産 生離心力之方式使工件定心(即夾具與工件之幾何中心 重合),並利用砂輪等研磨工具進行加工β [0004] 此種定心機可廣泛用於一般形狀之滾圓或磨圓加工上, 然而此種利用離心力之定心機制由於需要高速旋轉,容 易耗損機台,且其定心之穩定度不佳。 [0005] 有鑒於此,提供一種夹持裝置及夾持方法,其可在光學 鏡片等之加工中容易實現精確定心。 095108188 表單編號Α0101 第3買/共19頁 1003340405-0 1353282 100年09月16日核正替换頁 【發明内容】 [0006] 下面將以具體實施例說明一種夾持裝置及夾持方法。Sixth, the invention description: '[Technology of the invention belongs to the jaw] [0001] and prior to the clip and the present invention relates to a lost device and a method of losing the grip, in particular, the precise determination of the core clamping function in the processing of the related components The method of holding and holding. [Prior Art] [0002] In the field of optical technology, 'optical lenses that make up various optical systems, such as lenses, spherical mirrors, various types of aspherical mirrors, etc., must be coarsely ground, finely ground, and finely ground according to the technical requirements of optical design. Grinding, polishing, edging, etc., this process is called optical cold processing in the industry. [0003] The optical lens to be processed in optical cold working is fixed by a jig. The grinding process w is usually performed in a prior art using a centering machine. A centering machine is a machine for grinding various shapes into a circular shape. The principle is to fix a workpiece (such as a lens, etc.) with a hollow missing piece, and use a driving device such as a pump to inhale the hollow portion of the missing piece and adsorb the workpiece. On one of the clamping bodies of the clamp, after the adsorption, another identical clamping body is brought closer to the other φ end, thereby clamping and fixing the workpiece. Finally, the workpiece is centered by means of high-speed rotation to generate centrifugal force (that is, the fixture coincides with the geometric center of the workpiece), and is processed by a grinding tool such as a grinding wheel. [0004] This kind of centering machine can be widely used for rounding or rounding of general shapes. In processing, however, such a centering mechanism using centrifugal force requires high-speed rotation, which easily wears out the machine table, and its centering stability is not good. In view of the above, there is provided a holding device and a clamping method which can easily achieve fine centering in processing of an optical lens or the like. 095108188 Form No. Α0101 3rd Buy/Total 19 Pages 1003340405-0 1353282 September 16th, 100th Nuclear Replacement Page [ SUMMARY OF THE INVENTION [0006] A clamping device and a clamping method will be described below by way of specific embodiments.
[0007] 一種夾持裝置,用於夾緊並定位待加工之工件,該夾持 裝置包括一對相對設置之夹持體,所述夹持體之相對之 端面上分別形成有夾持端面,且其中至少一個夾持體内 部開設有腔體,該腔體一端延伸至所述夾持端面;該夾 持裝置還包括一個定心套,其包括第一端及第二端且其 内部形成有調位孔及定心孔,該兩孔之軸向中心線相重 合,該調位孔形成於該定心套之第一端並向第二端延伸 ,呈錐台形,其口徑從第一端向第二端起逐漸減小;該 定心孔形成於該定心套之第二端並向第一端延伸且與所 述調位孔相連接,呈圓柱體形,其口徑與調位孔之最小 口徑相同;其中,該調位孔及定心孔一同將定心套導通 ,該定心套藉由該定心孔套設於所述夾持體上,並將第 二端設置於遠離所述夾持端面之一侧,且使該定心孔與 該夾持體之軸向中心線相重合。[0007] a clamping device for clamping and positioning a workpiece to be processed, the clamping device comprising a pair of oppositely disposed clamping bodies, wherein the opposite end faces of the clamping body are respectively formed with clamping end faces, And at least one of the clamping bodies is internally provided with a cavity extending to one end of the clamping end; the clamping device further comprises a centering sleeve comprising a first end and a second end and having an inner portion formed therein Positioning hole and centering hole, the axial center lines of the two holes are coincident, the positioning hole is formed at the first end of the centering sleeve and extends toward the second end, and has a frustum shape, the diameter of which is from the first end The centering hole is gradually reduced from the second end; the centering hole is formed at the second end of the centering sleeve and extends toward the first end and is connected with the positioning hole, and has a cylindrical shape, and the diameter and the positioning hole are The minimum aperture is the same; wherein the positioning hole and the centering hole together conduct the centering sleeve, the centering sleeve is sleeved on the clamping body by the centering hole, and the second end is disposed away from the One side of the clamping end face is described, and the centering hole is coincident with the axial center line of the clamping body.
[0008] 一種夹持裝置,用於夾緊並定位待加工之工件,該夹持 裝置包括一對相對設置之夾持體,所述夾持體之相對之 端面上分別形成有夾持端面,且其中至少一個夾持體内 部開設有腔體,該腔體一端延伸至所述夾持端面;該夾 持裝置還包括一個定心套,其包括第一端及第二端且内 部形成有調位孔、定心孔及通孔,該三孔之軸向中心線 相重合,該調位孔形成於該定心套之第一端並向第二端 延伸,呈錐台形,其口徑從第一端向第二端起逐漸減小 ;該通孔形成於該定心套之第二端並向第一端延伸,呈 095108188 表單編號A0101 第4頁/共19頁 1003340405-0 Γ353282 100年09月16日修正替换頁 圓柱體形;該定心孔形成於該調位孔及通孔之間,並與 兩孔分別相連接,呈圓柱體形,其口徑與調位孔之最小 口徑相同並大於通孔之口徑;其中,所述三孔一同將定 心套導通,該定心套藉由該通孔套設在所述夾持體上, 並將第二端設置於遠離所述夾持端面之一側,且使該通 孔與該夾持體之軸向中心線相重合。[0008] a clamping device for clamping and positioning a workpiece to be processed, the clamping device comprising a pair of oppositely disposed clamping bodies, wherein the opposite end faces of the clamping body are respectively formed with clamping end faces, And at least one of the clamping bodies is internally provided with a cavity extending from one end to the clamping end surface; the clamping device further comprises a centering sleeve comprising a first end and a second end and the inside is formed with a tone a positioning hole, a centering hole and a through hole, the axial center lines of the three holes are coincident, the positioning hole is formed at the first end of the centering sleeve and extends toward the second end, and has a frustum shape, the diameter of which is from One end gradually decreases toward the second end; the through hole is formed at the second end of the centering sleeve and extends toward the first end, which is 095108188 Form No. A0101 Page 4 / Total 19 Page 1003340405-0 Γ 353282 100 years 09 The replacement page has a cylindrical shape on the 16th; the centring hole is formed between the positioning hole and the through hole, and is connected with the two holes respectively, and has a cylindrical shape, and the diameter of the hole is the same as the minimum diameter of the positioning hole and is larger than The aperture of the hole; wherein the three holes together conduct the centering sleeve, The core sleeve is sleeved on the clamping body by the through hole, and the second end is disposed on a side away from the clamping end surface, and the through hole is aligned with the axial center line of the clamping body coincide.
[0009] 以及一種夾持方法包括以下步驟:首先提供第一夾持體 ,該第一夾持體之端面上形成有夾持端面且其内部開設 有腔體,該腔體一端延伸至所述夾持端面;並將一個定 心套套設於第一夾持體上,該定心套包括調位孔、定心 孔及通孔,該三孔從該定心套内部之一端依次向另一端 延伸形成並將其導通,其中,該調位孔呈錐台形,其口 徑從端口向内逐漸減小,該定心孔與該調位孔相連接呈 圓柱體形,其口徑與調位孔之最小口徑相同,該通孔與 該定心孔相連接呈圓柱體形,其口徑小於定心孔之口徑 ,該定心套藉由該通孔套設於所述夾持體上,並將形成 有通孔之一端設置於遠離所述夾持端面之一侧,且使該 通孔與該夾持體之軸向_心線相重合;其次對所述腔體 進行抽氣,將工件吸附至所述夾持端面上;並沿第一夾 持體之軸向方向移動所述定心套,使工件進入該定心套 内並進行定心;最後提供第二夾持體,並使該第二夾持 體端面靠近並接觸所述工件,藉由所述第一及第二夾持 體夾緊該工件,並停止抽氣。 [0010] 相較於先前技術,所述一種夾持裝置及夾持方法,其藉 由抽氣吸附之方式高精度夾緊固定所需加工之工件,且 095108188 表單編號A0101 第5頁/共19頁 1003340405-0 1353282 100年09月16日核正替換頁 藉由定心套進行快速精確地定心,以確保加工時之準確 度,從而提高加工後之工件品質。 【實施方式】 [0011] 下面結合附圖將對本發明實施例作進一步之詳細說明。 [0012] 請一同參見圖1及圖2,本發明第一實施例提供之夾持裝 置用於夾緊所需加工之工件10 (如光學鏡片)並對其進 行精確定心,該夾持裝置包括一對夾持體20及21、抽氣 裝置30、以及定心套40。And a clamping method comprising the steps of: firstly providing a first clamping body, an end surface of the first clamping body is formed with a clamping end surface and a cavity is opened therein, the cavity extending to one end at the end Holding the end face; and positioning a centering sleeve on the first clamping body, the centering sleeve includes a positioning hole, a centering hole and a through hole, the three holes sequentially from one end to the other end of the centering sleeve Extending and forming, wherein the positioning hole has a truncated cone shape, and the diameter thereof gradually decreases from the port inwardly, and the centring hole is connected with the positioning hole to have a cylindrical shape, and the diameter of the positioning hole and the positioning hole are the smallest. The through hole is connected to the centering hole and has a cylindrical shape, and the diameter thereof is smaller than the diameter of the centering hole. The centering sleeve is sleeved on the clamping body through the through hole, and a through hole is formed. One end of the hole is disposed away from one side of the clamping end face, and the through hole is coincident with the axial_heart line of the clamping body; secondly, the cavity is evacuated, and the workpiece is adsorbed to the Clamping the end face; and moving the centering sleeve along the axial direction of the first clamping body, The workpiece enters the centering sleeve and is centered; finally, the second clamping body is provided, and the second clamping body end surface is brought close to and contacts the workpiece, and is clamped by the first and second clamping bodies The workpiece and stop pumping. [0010] Compared with the prior art, the clamping device and the clamping method are capable of clamping and fixing a workpiece to be processed with high precision by suction suction, and 095108188 Form No. A0101 Page 5 of 19 Page 1003340405-0 1353282 On September 16th, 100th, the replacement page was quickly and accurately centered by the centering sleeve to ensure the accuracy of the machining, thus improving the quality of the workpiece after machining. [Embodiment] Hereinafter, embodiments of the present invention will be further described in detail with reference to the accompanying drawings. [0012] Referring to FIG. 1 and FIG. 2 together, the clamping device provided by the first embodiment of the present invention is used for clamping and precisely aligning a workpiece 10 (such as an optical lens) to be processed. A pair of clamping bodies 20 and 21, an air extracting device 30, and a centering sleeve 40 are included.
[0013] 所述夾持體20形成為圓柱形狀之軸體,其包括第一端201 及第二端202,且該第一端201之末端形成有夾持端面 2011,該夾持端面2011係直接與工件10相接觸部分,可 根據實際需要設計該夾持端面2011之形狀。該夾持體20 内部開設有腔體203,該腔體203從該第一端201之夾持 端面2011向該第二端202延伸。[0013] The clamping body 20 is formed into a cylindrical shaft body, and includes a first end 201 and a second end 202, and a distal end end of the first end 201 is formed with a clamping end surface 2011. The part directly contacting the workpiece 10 can be designed according to actual needs. A cavity 203 is defined in the clamping body 20, and the cavity 203 extends from the clamping end surface 2011 of the first end 201 toward the second end 202.
[0014] 另一夾持體21與上述夾持體20相對設置且兩者之軸向中 心線相重合。該夹持體21之靠近夾持體20之末端形成有 夾持端面2111,該夾持端面2111係直接與工件10相接觸 部分,與夾持體2 0之夾持端面2011相匹配,並一同夾緊 工件10。當所需加工之工件10為光學鏡片時,該夹持體 20及21可選用不損壞鏡片之黃銅材料。當然為降低成本 ,亦可以只將形成有夾持端面2011及2111之一端上採用 黃銅等特殊材料。 [0015] 所述抽氣裝置30用於對夾持體20之腔體203進行抽氣,以 使將工件10吸附至夾持端面2011上。該抽氣裝置30可藉 095108188 表單編號A0101 第6頁/共19頁 1003340405-0 1353282 100年09月16日核正替换頁 由抽氣管道301與夾持體20之腔體203相連接,其可為抽 氣泵等設備。 [0016] • 所述定心套40套設於夾持體2〇上。該定心套40内部形成 有調位孔41及定心孔42。該調位孔41用於調整工件1〇之 位置’其從罪近夾持體2〇之第一端201之一端起逐漸向靠 近第一端202之一端延伸形成,該調位孔大致呈錐台形, 即從靠近所述夾持體20之第一端201之一端起口徑逐漸減 小。該定心孔42用於對工件1〇進行定心,其從與調位孔 41相連接之一端起逐漸向靠近所述第二端2〇2之一端延伸 • 形成’並呈圓柱體形,且其口徑與調位孔41之最小口徑 相同,該定心孔用於對工件1〇進行精確定心,因此其口 徑與垂直於夾持方向之工件1〇之高度相同。另外,該調 位孔41與遠定心孔42 —同將該定心套4〇導通,且兩孔之 轴向中心線與所述夾持體20之軸向中心線相重合,而該 夾持體20則藉由該定心孔42與該定心套40相配合,即該 圓柱體形夾持體2〇其外經與該定心孔42之内經於確保同 轴度之情況下’並於單邊允許之配合公差係〇~5微求之範 圍内相聯接’由此可藉由如氣廢驅動等外力作用將該定 心套40相對該夾持體20來回移動。 [0017] 當然,本發明實施例使用之定心套並秘於以上所述結 構及形狀,如圖3所示,於本發明第二實施例中定心套 5〇包括調位孔51、定心孔52及通孔53。與第-實施例相 同’該調位孔51用於調整工件之位置,其從靠近爽持體 之央持端面之—端起逐漸向遠離該夹持端面之-端延伸 形成,其大致呈錐台形,即從靠近所述失持端面之一端 095108188 表單編號A0101 笫7頁/共19頁 1003340405-0 1353282 100年09月16日核正替換頁[0014] The other clamping body 21 is disposed opposite to the above-mentioned clamping body 20 and the axial center lines of the two are coincident. A clamping end surface 2111 is formed at an end of the clamping body 21 adjacent to the clamping body 20, and the clamping end surface 2111 is directly in contact with the workpiece 10, and is matched with the clamping end surface 2011 of the clamping body 20, and together The workpiece 10 is clamped. When the workpiece 10 to be processed is an optical lens, the holders 20 and 21 may be selected from brass materials that do not damage the lens. Of course, in order to reduce the cost, it is also possible to use only a special material such as brass on the end of the clamping end faces 2011 and 2111. [0015] The air extracting device 30 is configured to evacuate the cavity 203 of the clamping body 20 so as to adsorb the workpiece 10 onto the clamping end surface 2011. The air extracting device 30 can be connected to the cavity 203 of the clamping body 20 by the air suction pipe 301 by using the ventilating pipe 301 by the 095108188 form number A0101, page 6 / 19 pages 1003340405-0 1353282. It can be a pump and other equipment. [0016] The centering sleeve 40 is sleeved on the clamping body 2〇. An alignment hole 41 and a centering hole 42 are formed inside the centering sleeve 40. The positioning hole 41 is used for adjusting the position of the workpiece 1'. It is formed from one end of the first end 201 of the sin-holding body 2〇 and gradually extends toward one end of the first end 202. The positioning hole is substantially tapered. The shape of the table, that is, the diameter gradually decreases from one end of the first end 201 of the holder 20. The centering hole 42 is used for centering the workpiece 1 , and gradually extends from one end connected to the positioning hole 41 toward one end of the second end 2〇2 to form 'and is cylindrical, and The diameter of the hole is the same as the minimum diameter of the positioning hole 41. The centering hole is used for finely determining the workpiece 1,, so the diameter thereof is the same as the height of the workpiece 1垂直 perpendicular to the clamping direction. In addition, the positioning hole 41 and the centering hole 42 are electrically connected to the centering sleeve 4, and the axial center line of the two holes coincides with the axial center line of the clamping body 20, and the clip The holder 20 is matched with the centering sleeve 40 by the centering hole 42, that is, the cylindrical body 2 and the outer center of the centering hole 42 ensure coaxiality. And the unilaterally allowed tolerance system 相~5 micro-combination within the range of connection ′′, the centering sleeve 40 can be moved back and forth relative to the clamping body 20 by an external force such as a gas waste drive. [0017] Of course, the centering sleeve used in the embodiment of the present invention is secreted in the above structure and shape. As shown in FIG. 3, in the second embodiment of the present invention, the centering sleeve 5 includes a positioning hole 51, Heart hole 52 and through hole 53. Same as the first embodiment, the positioning hole 51 is used for adjusting the position of the workpiece, which is formed from the end of the holding end surface of the holding body and gradually extends away from the end of the clamping end surface, which is substantially tapered. The shape of the table, that is, from the end of the lost end face 095108188 Form No. A0101 笫 7 pages / Total 19 pages 1003340405-0 1353282 100 September 16 nuclear replacement page
起口徑逐漸減小;該定心孔52用於對工件進行定心,其 從與調位孔51相連接之一端起逐漸向遠離所述該夾持端 面之一端延伸形成,並呈圓柱體形,且其口徑與調位孔 51之最小口徑相同,該定心孔用於對工件進行精確定心 ,因此其口徑與垂直於夾持方向之工件之高度相同。該 通孔53從與定心孔52相連接之一端逐漸向與所述調位孔 51相反之那一端延伸形成,該通孔53與所述夾持體之形 狀相匹配,且其口徑小於定心孔5 2之口徑。另外,該調 位孔51、該定心孔52及通孔53 —同將該定心套50導通, 且三個孔之軸向中心線與所述夾持體之軸向中心線相重 合。而與第一實施不同之係,該夾持體則藉由該通孔53 與該定心套50相配合,且於確保該夾持體20與通孔53之 同軸度之情況下,並於單邊允許之配合公差係0~5微米之 範圍内相聯接,由此可藉由如氣壓驅動等外力作用將該 定心套5 0相對該夾持體來回移動。 [0018] 下面詳細說明本實施例提供之夾持方法。The centering hole is gradually reduced; the centering hole 52 is used for centering the workpiece, and is gradually formed from one end connected to the positioning hole 51 and extends away from one end of the clamping end surface, and has a cylindrical shape. The diameter of the hole is the same as the minimum diameter of the positioning hole 51. The centering hole is used for fine centering of the workpiece, so the diameter of the workpiece is the same as the height of the workpiece perpendicular to the clamping direction. The through hole 53 is formed from an end connected to the centering hole 52 to an end opposite to the positioning hole 51. The through hole 53 matches the shape of the clamping body, and the diameter thereof is smaller than The diameter of the heart hole 5 2 . In addition, the positioning hole 51, the centering hole 52 and the through hole 53 are electrically connected to the centering sleeve 50, and the axial center line of the three holes coincides with the axial center line of the holder. Different from the first embodiment, the clamping body cooperates with the centering sleeve 50 through the through hole 53 and ensures the coaxiality between the clamping body 20 and the through hole 53 and The unilateral tolerance is allowed to be coupled within a range of 0 to 5 micrometers, whereby the centering sleeve 50 can be moved back and forth relative to the holder by an external force such as pneumatic driving. [0018] The clamping method provided by the embodiment will be described in detail below.
[0019] 請參見圖1及圖4至圖6,以第一實施例中之夾持裝置20為 例,使用該夾持裝置20對工件10 (如光學鏡片)進行夾 持並定心之夾持方法包括以下步驟: [0020] 首先,設置好夾持裝置(如圖1所示),並利用如抽氣泵 等抽氣裝置對夾持體20内部之腔體203進行抽氣,由於腔 體203係從該第一端201之夾持端面2011向該第二端202 開設之,因此夾持端面2011之埠處吸附力很強,以使可 以將工件10吸附到夾持端面2011上並固定住(如圖4所示 095108188 表單編號A0101 第8頁/共19頁 1003340405-0 1.353282 100年09月16日修正替换頁1 [0021] • 其次’為調整所吸附之工件10與夾持體20之轴心偏差, 將定心套4〇沿靠近工件1〇之軸向方向移動,使夾持體20 與被吸附之工件10—同藉由該定心套4〇之調位孔41與定 心孔42 (如圖5所示)。此時該工件1〇藉由調位孔41之斜 錐體面’並可以沿與該夹持體2 〇之軸向垂直之方向進行 位置調整。工件10進入定心孔4 2中後’由於該定心孔4 2 之軸向中心線與該夾持體20之軸向中心線相重合,並且 該定心孔42之口徑與工件1 〇之與夾持方向垂直之高度相 匹配’因而相對於夾持體20可對工件10進行較高精度之 定心。當工件1〇完全進入該定心孔42中時停止該定心套 40之移動。此步驟中,移動該定心套40可藉由氣壓驅動 之推杆等外力作用(圖未示)進行。 [0022] 最後’確保定心完成後於持續抽氣之狀態下,將定心套 40移回原先之位置並露出工件10 ’此時將失持裝置之另 一夾持體21靠近並接觸工件10之另一端面,並藉由相對 設置之一對夾持體20及21固定工件1〇 ’之後停止抽氣( • 如圖6所示此時,工件10與夾持體20及21之軸向中心 線相重合,進行後續加工時可確保精確穩定之定心度。 [0023] 可以理解,本發明實施例中所述夾持體及定心套之形狀 及結構並不限於以上說明,可根據實際需求進行設計, 只要確保兩者相配合實現高精度定心之效果即可。 [0024] 综上所述,本發明確已符合發明專利要件,爰依法提出 095108188 專利申請。惟,以上所述者僅為本發明之較佳實施例, 舉凡熟悉本案技藝之人士,於援依本案發明精神所作之 等效修飾或變化,皆應包含於以下之申請專利範圍内。 表單編號A0101 第9頁/共19頁 1003340405-0 1353282 _— 100年09月16日修正替換頁 【圖式簡單說明】 [0025] 圖1係本發明第一實施例之夾持裝置及工件之示意圖。 [0026] 圖2係本發明第一實施例之夾持裝置定心套之示意圖。 [0027] 圖3係本發明第二實施例之夹持裝置定心套之示意圖。 [0028] 圖4係本發明第三實施例之夾持方法中吸附工件之示意圖 [0029] 圖5係本發明第三實施例之夹持方法中移動定心套進行定 心之示意圖。 [0030] 圖6係本發明第三實施例之夾持裝置之一對夾持體夾緊工 件之示意圖。 【主要元件符號說明】 [0031] 工件10 夾持體20、21 [0032] 第一端 201 夹持端面 2011、2111 [0033] 第二端 202 腔體 203 [0034] 抽氣裝置30通氣管道301 [0035] 定心套40、50調位孔41、51 [0036] 定心孔42、52通孔53[0019] Referring to FIG. 1 and FIG. 4 to FIG. 6, taking the clamping device 20 in the first embodiment as an example, the workpiece 10 (such as an optical lens) is clamped and centered by the clamping device 20. The holding method comprises the following steps: [0020] First, the clamping device (as shown in FIG. 1) is set, and the cavity 203 inside the clamping body 20 is evacuated by using an air suction device such as an air pump, due to the cavity. The 203 is opened from the clamping end surface 2011 of the first end 201 to the second end 202, so that the suction force at the clamping end surface 2011 is strong, so that the workpiece 10 can be adsorbed to the clamping end surface 2011 and fixed. Live (as shown in Figure 4 095108188 Form No. A0101 Page 8 / Total 19 Page 1003340405-0 1.353282 100 September 16 Revision Replacement Page 1 [0021] • Next 'to adjust the adsorbed workpiece 10 and the holder 20 The axial center deviation moves the centering sleeve 4〇 in the axial direction of the workpiece 1〇, so that the clamping body 20 and the workpiece 10 to be adsorbed are aligned with the positioning hole 41 of the centering sleeve 4〇 The core hole 42 (shown in FIG. 5). At this time, the workpiece 1 is slanted by the inclined cone surface of the alignment hole 41 and can be along the holder 2 Position adjustment of the axial direction of the crucible. After the workpiece 10 enters the centering hole 4 2 'because the axial center line of the centering hole 4 2 coincides with the axial center line of the clamping body 20, and The diameter of the centering hole 42 matches the height of the workpiece 1 垂直 perpendicular to the clamping direction. Thus, the workpiece 10 can be centered with higher precision with respect to the holder body 20. When the workpiece 1〇 completely enters the centering hole When the middle of 42 is stopped, the movement of the centering sleeve 40 is stopped. In this step, the movement of the centering sleeve 40 can be performed by an external force such as a pneumatically driven push rod (not shown). [0022] Finally, 'ensure the centering is completed In the state of continuous pumping, the centering sleeve 40 is moved back to the original position and the workpiece 10' is exposed. At this time, the other clamping body 21 of the lost device is brought close to and contacts the other end surface of the workpiece 10, and by relative One of the settings stops the pumping after the workpieces 20 and 21 are fixed to the workpiece 1 ( ' (as shown in Fig. 6 at this time, the workpiece 10 coincides with the axial center lines of the holders 20 and 21 for subsequent processing. It can ensure accurate and stable centering. [0023] It can be understood that in the embodiment of the present invention The shape and structure of the clamping body and the centering sleeve are not limited to the above description, and can be designed according to actual needs, as long as the two are matched to achieve the effect of high-precision centering. [0024] In summary, The present invention has indeed met the requirements of the invention patent, and the patent application of 095108188 is filed according to law. However, the above description is only a preferred embodiment of the present invention, and those skilled in the art of the present invention are equivalently modified in the spirit of the invention. Or the change should be included in the following patent application form Form No. A0101 Page 9 / Total 19 Page 1003340405-0 1353282 _—Revised replacement page on September 16, 100 [Simple description] [0025] Figure 1 A schematic view of a clamping device and a workpiece according to a first embodiment of the present invention. 2 is a schematic view of a centering sleeve of a clamping device according to a first embodiment of the present invention. 3 is a schematic view of a centering sleeve of a clamping device according to a second embodiment of the present invention. 4 is a schematic view showing the adsorption of a workpiece in a clamping method according to a third embodiment of the present invention. [0029] FIG. 5 is a schematic view showing centering of a moving centering sleeve in a clamping method according to a third embodiment of the present invention. 6 is a schematic view showing a clamping device of one of the clamping devices according to the third embodiment of the present invention. [Main component symbol description] [0031] workpiece 10 clamping body 20, 21 [0032] first end 201 clamping end face 2011, 2111 [0033] second end 202 cavity 203 [0034] air suction device 30 ventilation duct 301 [0035] Centering sleeve 40, 50 positioning holes 41, 51 [0036] Centering holes 42, 52 through holes 53
095108188 表單編號A0101 第10頁/共19頁 1003340405-0095108188 Form No. A0101 Page 10 of 19 1003340405-0
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CN113399690B (en) * | 2021-06-07 | 2022-11-15 | 广东开放大学(广东理工职业学院) | Turning method |
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