201213045 六、發明說明： [相關申請案之相互參照] 本案係主張日本發明專利申請案第2〇1〇-216294號（申 請曰2010年9月28曰）、發明名稱「研磨單元」之優先 權之權益，該申請案之所有内容以參照之形式併入本說明 書中。 【發明所屬之技術領域】 本發明係關於離心筒研磨農置中所使用之研磨單元及 使用搭載有該研磨單元之離心筒研磨裝置之研磨方法。. 【先前技術】 自先前以來，廣泛使甩有如下之離心筒研磨裝置： 了對被研磨物（工件）進行去 〆 τ 7疋仃云除毛邊、刨圓加工、拋光精 研磨等，而於筒槽内投入工件及研磨介質，使該筒槽自公 轉，藉此使研磨介質流動而研磨工件。此種離心筒研磨裝 置中所使用之先前之研磨單元例如揭示於專利文獻丨中。 圖4表示先前之研磨單元之一 {列。該先前之研磨單元 ⑽具備由箱型本體m及槽蓋112形成之筒才曹ιι〇、及可 旋轉地安裝於未圖示之轉座（公轉圓盤）上之筒槽箱體 120。將筒槽110固定於筒槽箱^ 12〇日夺作業人員手動摔 作設置於筒槽箱體丨20之固定構件121之操作桿122，使偏 〜棒123旋轉，藉此使凸輪124與形成於槽蓋n2之上表 面之肩部113抵接，從而將槽蓋112牢牢地按壓於本體⑴ 並加以固定。 [先前技術文獻] 3 201213045 [專利文獻] [專利文獻1]曰本特開平1 1-58214號公報（新東佈雷塔 (SINTOBRATOR)股份有限公司） 【發明内容】 [發明所欲解決之問題] 於如上所述之先前之研磨單元1〇〇中，由於筒槽u〇 不具備將槽I 112固定於本體"i之手段，因此為了藉由 凸輪124之偏心量而產生充分之按壓力，凸輪124與肩部 113之間的間隙要求較高精度。因此，若本體丨丨丨與槽蓋 112彼此不匹配，則有間隙超過既定範圍之虞，故而存在本 體111及槽蓋112不具有相對於其他槽蓋及本體之相容 性，而無法有效地進行筒槽丨1〇之裝卸作業之問題。又， 根據凸輪124之偏心量和凸輪124與肩部113之間的間隙 決定按壓力之大小及㈣力之作用方向1此亦存在難以 將按壓力控制為固定值且固定方向之問題。 又’當更換筒槽1 1〇内面之橡膠製内襯時，有時對形 成内襯之橡膠加熱去除’此時若本體⑴或槽蓋"2、或唁 :者產生熱變形，則…24與肩·"13之間的間隙發生/ 良化’因此需要修正間隙’有時必須更換本體iu及槽蓋 112中之至少一者。 人，划上所述由於筒槽 -^、·广口又、狀戈口田於上述 橡骖製内襯之磨損而更換筒槽）， 4為了將工件及研磨介 貝相對於該筒槽110裝入取出 輕量化。 3進订裝卸，故而要求 4 201213045 *因此本發明之目的在於提供一種賦予筒槽之本體及 扎蓋相對於其他槽蓋及本體之相容性，可確實地將槽蓋固 定於=槽本體及將筒槽固定於筒槽箱冑，且維護性優異之 研磨早7C，提供一種使用t亥研磨ϋ之研磨方法。 [解決問題之技術手段] 為達成上述目的，於本發明之一實施形態中提供一種 離心筒研磨裝置中所使用之研磨單元，其包含：筒槽其 具有裝入被研磨構件及介質之本體部、及密封該本體部之 槽蓋；及 筒札粕體，其具有保持上述筒槽之托盤、及將上述筒 槽固疋於上述托盤之筒槽固定構件，且安裝於離心筒研磨 裝置之公轉圓盤上；上述筒槽固^構件具有構成為對應上 述槽蓋之外形形狀而可將上述槽蓋向垂直下方按壓之按壓 構件。 根據該實施形態，藉由按壓構件可將槽蓋向垂直下方 按壓’並且藉由適當之按壓力將槽蓋固定於本體部，因此 無論筒槽固定構件與槽蓋之間隙而可確實地將筒槽固定於 筒槽箱體。 又，由於按壓構件與槽蓋之外形形狀相對應，因此藉 由防止按壓構件與槽蓋產生鬆動而可確實地將槽蓋固定於 本體部。 ' 由於可將槽蓋於相同之按壓狀態下固定於本體部，因 此無需固定本體部與槽蓋之組合，從而可製成筒槽本體及 槽蓋具有相容性之研磨單元。 201213045 姆阳於此情形時，上述筒槽固定構件係插通於引導上过·气 槽固定構件之一對導向部，每 、導上述茼 上可移動而構成，並且亦可述筒槽時於水平方向 I於上述筒槽之固定位置時，以： ：：：槽固定構件安 述筒槽固定構件之移動之定位構件Γ ° 為基準限制上 根據此種構成，由於件挪 固定構件之一對導向部：當』卸係插通於引導筒槽 動而構成，因此筒槽固定構件不會二向上可移 可容易地進行筒槽之裝卸β θ #之衷卸，從而 可|4=Γ槽固定構件安裝於筒槽之固定位置時， 動\ 構件以導向部為基準限制筒槽固定構件之移 動，因此可將筒槽容易地配置 霉牛之移 該定位構件亦可具有：凸構/位置而使其不移動。 定構件安裝於上述筒槽其係當將上述筒槽固 件向時限制上述筒槽固定構 :女裝方向移動；及突出構件’其係向 構件之内部向外側突出之方向彈壓者，且以：= ^槽固定構件之内部之方式而構成 =於上述筒槽之固定位置時突出，而限制上述筒= 疋構件向解除方向之移動。 曰 於此情形時，當安裝筒槽固定構士 限制筒槽固定構件向安裝方向· a 構件可 制筒槽固定構件向解:==動，藉由突出構件可限 配置於固定位置而使二::動。藉此可將筒槽容易地 由於突出構件係向自定位構件之内部向外側突出之方 6 201213045 向彈壓’因此僅藉由將筒槽 罟係口疋構件安裝於筒槽之固定位 置便可自動突出而限制向解除方向之移動。201213045 VI. Invention description: [Reciprocal reference of related applications] This case claims the priority of Japanese invention patent application No. 2〇1〇-216294 (applicable on September 28, 2010) and the title of the invention “grinding unit” The entire contents of this application are incorporated herein by reference. [Technical Field of the Invention] The present invention relates to a polishing unit used in a centrifuge barrel polishing apparatus and a polishing method using a centrifugal barrel polishing apparatus equipped with the polishing unit. [Prior Art] Since the prior art, the following centrifugal barrel polishing apparatus has been widely used: the object to be polished (workpiece) is subjected to de-icing, 7-cloud removal, rounding, polishing, etc. The workpiece and the grinding medium are loaded into the cylinder, and the cylinder is self-revolving, whereby the polishing medium flows to grind the workpiece. The prior grinding unit used in such a centrifuge barrel polishing apparatus is disclosed, for example, in the patent document. Figure 4 shows one of the previous grinding units {columns. The conventional polishing unit (10) includes a cylinder formed by a box-shaped body m and a groove cover 112, and a cylindrical casing 120 rotatably attached to a rotating base (revolving disk) (not shown). Fixing the cylindrical groove 110 to the cylindrical tank 12, the operator manually knocks the operating rod 122 of the fixing member 121 provided on the cylindrical tank body 20 to rotate the deflecting rod 123, thereby forming the cam 124 and forming The shoulder portion 113 on the upper surface of the groove cover n2 abuts, so that the groove cover 112 is firmly pressed against the body (1) and fixed. [Prior Art Document] 3 201213045 [Patent Document 1] [Patent Document 1] Japanese Patent Laid-Open Publication No. Hei No. 1-58214 (SINTOBRATOR Co., Ltd.) [Summary of the Invention] [Problems to be Solved by the Invention] In the prior polishing unit 1A as described above, since the groove u〇 does not have a means for fixing the groove I 112 to the body "i, in order to generate sufficient pressing force by the eccentric amount of the cam 124, The gap between the cam 124 and the shoulder 113 requires a higher degree of precision. Therefore, if the body 丨丨丨 and the slot cover 112 do not match each other, there is a gap that exceeds a predetermined range. Therefore, the body 111 and the slot cover 112 do not have compatibility with other slot covers and the body, and cannot be effectively The problem of loading and unloading operations of the tank 丨1〇 is carried out. Further, depending on the amount of eccentricity of the cam 124 and the gap between the cam 124 and the shoulder 113, the magnitude of the pressing force and (4) the direction of action of the force 1 are also difficult to control the pressing force to a fixed value and a fixed direction. In addition, when the rubber lining on the inner surface of the groove 1 1 is replaced, the rubber forming the lining may be heated and removed. At this time, if the body (1) or the groove cover "2, or 唁: is thermally deformed, then... The gap between the shoulder and the "13 occurs/prosperously. Therefore, it is necessary to correct the gap. It is sometimes necessary to replace at least one of the body iu and the tank cover 112. In the case of the person, the groove is replaced by the groove--, the wide mouth and the shape of the mouth of the rubber lining, and the groove is replaced with respect to the groove 110. Import and take lighter. 3 order loading and unloading, therefore request 4 201213045 * Therefore, the object of the present invention is to provide a compatibility between the body and the cover of the cylinder groove and the other groove cover and the body, and the groove cover can be surely fixed to the groove body and The cylinder groove is fixed to the tank tank, and the excellent maintenance of the grinding is 7C, and a grinding method using the t-ground grinding crucible is provided. [Means for Solving the Problems] In order to achieve the above object, an embodiment of the present invention provides a polishing unit used in a centrifugal barrel polishing apparatus, comprising: a cylindrical groove having a body portion into which a member to be polished and a medium are loaded And a groove cover for sealing the main body portion; and a tubular shovel body having a tray for holding the cylindrical groove and a cylindrical groove fixing member for fixing the cylindrical groove to the tray, and being mounted on the revolution of the centrifugal barrel polishing device In the disk, the cylindrical groove fixing member has a pressing member configured to press the groove cover vertically downward in accordance with a shape other than the groove cover. According to this embodiment, the groove cover can be pressed vertically downward by the pressing member, and the groove cover can be fixed to the body portion by a suitable pressing force, so that the tube can be surely fixed regardless of the gap between the groove fixing member and the groove cover The slot is fixed to the slot box. Further, since the pressing member has a shape corresponding to the groove cover, the groove cover can be surely fixed to the main body portion by preventing the pressing member and the groove cover from being loosened. Since the groove cover can be fixed to the main body portion in the same pressing state, it is not necessary to fix the combination of the main body portion and the groove cover, so that the cylindrical groove body and the groove cover can be made compatible with the polishing unit. 201213045 In the case of Myang, the above-mentioned cylindrical fixing member is inserted into one of the guide portions of the guide air passage fixing member, and is configured to be movable on each of the guide rollers, and may also be described as When the horizontal direction I is at the fixed position of the above-mentioned cylindrical groove, the following: ::: the fixing member of the groove fixing member is described as the reference member for moving the movement of the cylindrical groove fixing member. The guide portion is configured to be inserted into the guide cylinder slot, so that the slot fixing member can be easily moved in two directions, and the loading and unloading of the cylinder groove can be easily performed, so that the slot can be unloaded. When the fixing member is attached to the fixed position of the cylindrical groove, the moving member restricts the movement of the cylindrical fixing member with respect to the guiding portion, so that the cylindrical groove can be easily disposed. The positioning member can also have: convexity/position And make it not move. The fixing member is mounted on the above-mentioned cylindrical groove, and the above-mentioned cylindrical groove fixing body is used to restrict the above-mentioned cylindrical groove fixing structure: the direction of the women's clothing is moved; and the protruding member is urged in the direction in which the inside of the member protrudes outward, and the following: = ^ The inside of the groove fixing member is configured to protrude at a fixed position of the above-mentioned cylindrical groove, and to restrict the movement of the above-mentioned cylinder = 疋 member in the releasing direction. In this case, when the mounting groove fixing mechanism restricts the cylindrical groove fixing member to the mounting direction, the a member can be made into the cylindrical groove fixing member: the movement of the protruding member can be restricted to the fixed position. ::move. Thereby, the groove can be easily biased by the protruding member to the outside of the self-positioning member 6 201213045. Therefore, it can be automatically installed only by attaching the grooved groove member to the fixed position of the groove. Highlight and limit the movement to the release direction.
本發明之研磨單元較佳A ^ …進而具備··可定位於既定位 置之为度銷、藉由操作上述分 .^ &刀度鈉並經由上述分度銷而將 上述槽盍按壓於上述本體部 ^ 々日盖铋壓構件’用以將上述 槽盍固定於上述本體部之槽蓋固定構件。 於此情形時，由於筒神呈供#丄 1 9，、備稭由操作分度銷而將槽蓋 口疋於本體部之槽蓋固定错处 — 構件’故而可簡單且確實地進行 固疋，因此亦可不考慮本體 个瓶丨興槽盍之匹配性，可賦予本 體部及槽蓋相對於其他槽蓋及本體之相容性。 Η二：任一研磨單元中，較佳為藉由點焊法形成上述 荀槽本體部之焊接部。 先前1槽本體部係藉由弧焊法等對f曲成柱狀之金 上形成側面之金屬板進行全周焊接而形成，有熱輸入 夕线損之虞，因此金屬板係使用板厚為3 mm以 上之較厚者。另_ ，如上所述若藉由點焊法形成筒槽 本體部之焊接部’則金屬板產生溶損之虞變小，因此可使 左右之#x薄之金屬板製作筒槽本體部。藉此可使 “里化二減輕作業者之負# ’並且可削減製作筒槽之作 業工時及貫現構件之成本降低。進而，藉由使該筒槽輕量 化而減輕對用以進^千今r Μ ^ 仃5亥涛槽之自轉及公轉運動之驅動源之 、載藉此可實現筒研磨裝置之節能化且抑 之劣化。 ! 保衣1 使用具備上述任一研磨單元之離心筒研磨裝置進行研 201213045 磨之上述介質較佳為於成*甚 戍為i體之樹脂巾分散研磨粒而形 成’又，該研磨粒更佳為相對於 了冗上述介質而含有30〜70質 量％ »又，上述介質之重量較佳 罕1圭為0.01〜50 g或者比重較佳 為 1 · 7 〜2 · 3 〇 ‘ 又，上述介質較佳為由且 八有圓形剖面且具有連續的相 同剖面積之直體部、及白μ 自上述面積起連續縮徑之縮徑部 而形成’又’更佳為對該介f之銳角部進行㈣加工。 =’上述圓形剖面之直徑及與該圓形剖面正交之剖面 的長度之比較佳為1 : 〇 5〜i : ! 5。 使用將樹脂作為基體之介曾 肋·< 買進仃研磨有助於本發明之 目的之一的「輕吾外 A.U - ^ 化」。然而，若樹脂之含量較少，則無 法獲得充分之研磨六。7 ’ 為了有助於輕量化且獲得充分之研 磨力’較佳為將上述介質中所含之研磨粒之含有率設為％ 7〇%進而’上述介質之重量較佳為0.01〜50 g或者比重 較佳為1.7〜2.3。 備上述任一研磨單元之離心筒研磨裝置於研磨時， 係筒槽自公轉而進行研磨’因此研削力較高，但與其他形 式之筒研磨裝置（例如旋轉式）相比，介質之損耗量較大。 藉^使二質之形狀成為如上所述組合上述直體部及上述縮 ^之形狀’而於成為介質損耗之工件與筒槽碰撞時碰撞 能量分散，可防，μ # # 1 ., a 止僅集中地磨損某一部位，所謂之單方磨 知或破裂、缺口蓉。^ μ 寺進而藉由對銳角部實施刨圓加工，可 防止其成為破裂、缺 缺口之起點。組合上述直體部及上述縮 徑部之形狀之介暂 負，、有充分之研磨力，且用以|!方止如上所. 8 201213045 述之單方磨損或破裂缺 最佳形狀較佳為使上述圓飛 剖面及與該剖面正交 述圓形 乂之“面的長度之比處於1 〇5〜1 1·5之範圍内。 ·"Preferably, the polishing unit of the present invention further comprises: a positioning pin that can be positioned at a predetermined position, and the above-mentioned groove is pressed by the above-mentioned indexing pin by operating the above-mentioned indexing pin The body portion is configured to fix the groove to the groove cover fixing member of the body portion. In this case, since the tube god is supplied with #丄1 9, the straw is fixed by the operation of the indexing pin, and the groove cover of the groove cover is fixed at the wrong part of the body part - the member can be simply and surely fixed. Therefore, the compatibility of the body portion and the groove cover with respect to the other groove cover and the body can be imparted regardless of the matching of the body bottles. Η2: In any of the polishing units, it is preferable to form the welded portion of the above-described groove main body portion by spot welding. In the previous one-slot main body portion, the metal plate on the side surface of the gold which is bent into a columnar shape is formed by the arc welding method or the like, and the metal plate is formed by the entire circumference. Thicker than 3 mm. Further, as described above, if the welded portion of the main body portion of the tubular groove is formed by the spot welding method, the metal plate is reduced in melting loss, so that the left and right #x thin metal plates can be used to form the cylindrical body portion. In this way, "Lihua 2 can reduce the operator's negative #' and can reduce the cost of working the production of the cylinder and the cost of the components. Further, by reducing the weight of the cylinder, the use of the cylinder is reduced. The driving source of the rotation and revolution of the Qianhai r Μ ^ 仃5 涛 槽 、 载 载 载 可 可 可 可 可 可 可 可 可 可 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! The polishing apparatus performs grinding 201213045. The above-mentioned medium is preferably formed by dispersing abrasive grains in a resin film of the body, and the abrasive grains are more preferably contained in an amount of 30 to 70% by mass relative to the medium. » Further, the weight of the medium is preferably from 0.01 to 50 g or a specific gravity of from 1 to 7 to 2 · 3 〇'. Further, the medium preferably has a circular cross section and has the same continuous The straight body portion of the sectional area and the white μ are reduced in diameter from the above-mentioned area to form a 'further'. It is better to perform (4) processing on the acute angle portion of the medium f. = 'The diameter and the diameter of the circular cross section The length of the cross section of the circular section is preferably 1 : 〇 5~i : ! 5. Use of the resin as a matrix. 买 买 买 买 买 买 买 买 买 买 买 买 买 买 买 买 有助于 有助于 有助于 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 However, if the content of the resin is small, sufficient grinding of six cannot be obtained. 7 ' In order to contribute to weight reduction and to obtain sufficient polishing force, it is preferable to set the content of the abrasive grains contained in the medium to % 7 %%, and the weight of the medium is preferably 0.01 to 50 g or The specific gravity is preferably from 1.7 to 2.3. When the centrifugal barrel polishing apparatus of any one of the above polishing units is used for polishing, the cylinder groove is ground by revolving, so that the grinding force is high, but the amount of medium loss is compared with other types of barrel polishing apparatuses (for example, rotary type). Larger. By combining the shape of the two masses as described above with the shape of the straight body portion and the shape of the shrinkage described above, the collision energy is dispersed when the workpiece which is a dielectric loss collides with the groove, and it is possible to prevent μ # # 1 . Only a part of the wearer is concentrated, so-called unilateral grinding or cracking, notch. ^ μ Temple can prevent it from becoming a starting point for cracking and missing gaps by rounding the sharp corners. Combining the shape of the straight body portion and the reduced diameter portion is temporarily negative, and has sufficient polishing force, and is used to prevent the unilateral wear or rupture of the above-mentioned shape. 8 201213045 The ratio of the above-mentioned circular flying section and the length of the "face" of the circular 乂 orthogonal to the section is in the range of 1 〇 5 to 1 1.5. · "
【實施方式;J 、對本發明之離心筒研磨裝置中所使用之研磨翠_ 說明。再者，本發明# 仃 月並不限疋於以下之實施形態。 如圖1所示，脾辑秘，Λ 將琦乜10之縱剖面形成為多邊 之筒狀，且該筒槽10且# .目士 ^夕㈣或圓形 ^曰10具備.具有用以於上 質之開口部1 la之太栌却,， 丨忒入工件及介 於本P ;及密封開口部山之槽蓋12。 於本貝轭形態中，作為一 為8邊形。 ⑽將湾槽10之縱剖.面形狀形成 於本體部11之内面及槽蓋12之下而益土此 單元相π ττ, 下面’與先前之研磨 早疋相同，形成有由用以防止各 研磨 構件所構成之内襯13。 #之耐磨#性橡勝 用以將槽蓋12固定於本體邻 應於本體部"之門口邱η σ &盍固定構件Μ對 之開口口Ρ 11 a之外側之固定 設置於槽蓋12之4個部位： 固-位置(孔部Hb) 槽蓋固定構件14包含：分度銷“ 於本體部11之描# ,。α 其係§將應安裝 之槽盍12相對於本體部 時，藉由空山4工 u匹配於既定位置 出插銷或球或該等之均等物 槽蓋12之定仂m 初（未圖不）而進行 之疋位，槽蓋按壓構件14b，苴 14a並經由分卢 ”係藉由刼作分度銷 均刀！鈉14a而可將槽蓋12松 1係表示蕤由播试 12叔壓於本體部U。圖 之狀態。 固疋於12本體部11 201213045 圖3表示槽蓋固定構件14之構造及藉由槽蓋固定構件 14將槽蓋12固定於本體部U之構造及固定方法。其中， 圖3(A)之上半部及圖3(B)〜⑻為自側面觀察固定 構造之透視圖’圖3(A)之下半部為自上方觀察本體部" 之平面圖。 如圖3 (A)所示，槽蓋按壓構件14b係以貫通槽蓋12 且藉由分度銷14a之操作而使可插入本體部n之礼部nb 之圓柱部可旋動之方式而構成。插入孔部丨lb之圓柱部中 形成有傾斜槽14c，孔部1 lb之内部設置有將傾斜槽於 上下方向上.引導之固定插銷1 lc。 若如圖3 ( B )所示，將槽蓋按壓構件14b插入本體部 11之孔部1 lb ,如圖3 ( C)所示，使分度銷14a向圖i之 箭頭L方向移動，則槽蓋按壓構件14b旋動，藉由固定插 銷lie引導傾斜槽14c而使分度銷14a向下方移動。 之後’在分度銷14a到達既定位置後，插銷向了方突 出’從而將槽蓋按壓構件14b定位於既定之旋動位置，如 圖3 (D)所示，按壓槽蓋12之上表面而可將槽蓋12固定 於本體部11。此處，由於分度銷14a定位為既定位置（圖i 之箭頭之一端L位置），因此可使藉由槽蓋按壓構件 並經由分度銷14a由槽蓋12按壓本體部11之移位為固定量 (即，使按壓力固定）。 若使分度銷14a向圖2之Ο方向旋動，則解除對槽蓋 12之按壓，因此可自本體部11卸除槽蓋12。 如此’筒槽10具備將槽蓋12固定於本體部11之槽蓋 10 201213045 固定構件Η’可簡單且確實地進行固定，因此不考慮本體 部11與槽蓋12之匹配性亦可，從而可使本體部丨丨^槽蓋 1 2成為相對於其他槽蓋及本體部具有相容性者。 此處’設置槽蓋固定構件14之位置及個數可根據筒槽 1 0之大小等適當設定。 曰 如圖2所示，筒槽箱體2〇具備載置並保持筒槽之 托盤21、將筒槽1〇固定於托盤21之筒槽固定構件及 裝卸筒槽10時以使筒槽固定構件22於水平方向（於本麻 施形態中為旋轉軸方向）上可移動之方式進行引導之一對 導向部23。將筒槽箱體2〇以經由旋轉抽24可自轉之方式 安裝於.未圖示之離心筒裝置之轉座（公轉圓盤）上。 導向部23係設置於旋轉軸方向之兩側面.，且以如下之 方式而形成為環狀：當插通筒槽固定構件22時，於導向部 之内周面與筒槽固定構件22之外周面之間，形成不阻礙 筒槽固疋構件22之移動之程度的間隙。 筒槽固定構件22具備：按壓構件山，其係'以可將筒 槽1〇向垂直下方按壓之方式搭載配置於面向托盤21之位 置而按壓筒槽W·’及定位構件之.凸構件22e卩突出構件 咖，其係當安裝筒槽固^構件則，以導向部η為基準 限制筒槽固定構件22之移動。 按，構件22a係例如藉由緊固螺栓奶調節上下位置， 可將牝蓋12向垂直下方按壓而構成。按壓槽蓋u之接觸 邛22e與槽蓋12之上表面之外形形狀相對應。 凸構件22c係以無法通過導向部23之凸形狀而形成於 11 201213045 筒槽固疋構件22上表面，且配置於當將筒槽固定構件22 安裝於筒槽1〇之固定位置時，限制向安裝方向（圖2 (八） 之箭頭Μ方向）之移動之位罝。 突出構件22d於本實施形態中形成為板狀，以可收納 於^槽固定構件22之内部之方式構成’並且藉由彈簧等向 自茼才曰固疋構件22之内部向外側突出之方向（圖2 ( a )之 箭頭X方向）彈壓。 突出構件22d係以當安裝筒槽固定構件22時突出，而 限制筒槽ϋ定構件22向解除方向（圖2(A)之箭頭^ 向）之移動之方式形成。 虽解除筒槽固定構件22時，對抗彈壓而將突出構件22d 收納於筒槽固定構件22之内部，藉此可簡單地解除移動限 制而使其移動。 e再者’安裝方向側之導向部23亦可形成為向解除方向 :口之杯狀而代替上述之環狀。於此情形時，亦可限制筒 。固定構件22向安裝方向之移動，發揮與凸構件仏相同 以下，對本實施形態之研磨單元1之使用例進行說明 首先，於筒槽10之本體部u内部投入工件及介質 =體部η之開口部Ua載置槽蓋12，.操作分度銷⑷ 槽盍固定構件14而將槽蓋η固定於本體部11β 件其次’於按壓突出構件22d而使其收納於筒槽固定4 内部之狀態下，使筒槽固定構件22沿導向部2… 除方向（圖2(A)之箭頭N方向）移動。 12 201213045 、.塵而，將筒槽ίο載置於托盤21， 23 6m — 並且使其沿導向部 23向將洵槽固定構件22安裝 方向f9 f Λ、 门槽1〇之固定位置之安裝 万向（圖2(A)之箭頭Μ方向）務 22d中报忐釦二 移動。此處，突出構件 22d中形成朝向安裝方向M寬 芒祛狄M m + 夂乍之傾斜部22f，因此， 右使同槽固疋構件22向安裝方向移叙 u# φ ψ ^ 移動，則藉由導向部23 將大出構件22d向圖2 ( A )之箭頭γ 』只γ方向壓入。之德，突 出構件22d通過導向部23後再度 出將筒槽固定構件22 疋位於既定位置。 之後，藉由緊固螺栓22b使按屙椹彼^ 饮&構件22a下降，將槽蓋 向垂直下方按壓並按壓密封 m ^ 奉體部U，並且將筒槽10 固疋於筒槽箱體20。 如此，藉由按麼構件22a可將槽蓋12向垂直下方按壓， 7藉由適當之按壓力將槽蓋12固定於本體部u，因此無論 琦槽固定構件22與槽蓋12之η a -γ — 、显之間隙而可將筒槽1 〇確實地固 定於筒槽箱體20。 又，由於按壓構件223之接觸部22e與槽蓋12之外形 形狀相對應’因此防止按麗構件22a與槽蓋12產生鬆動而 可確實地將槽蓋1 2固定於本體部丨i。 由於可將槽蓋1 2於相同之按壓狀態下固定於本體部 U，因此無需固定本體部"與槽蓋12之組合，從而可製 成本體部11及槽蓋12相對於其他槽蓋及本體部具有相容 性之研磨單元1。 、本實施形態中所使用之筒槽！ 〇之本體部丨丨係藉由點 焊法對f曲成柱狀之金屬板上形成側面之金屬板進行焊接 13 201213045 而製作。先前，筒槽本體部係藉由弧焊法等進行全周焊接 而形成，由於存在熱輸入量較多而產生熔損之虞，因^對 於s亥金屬板採用板厚為3 mm以上之較厚者。 另一方面，如本實施形態般，藉由點焊法形成本體部 Π之焊接部，藉此金屬板產生熔損之虞減小，因此可使用 1 mm左右之較薄之金屬板製作本體部u。藉此可使筒槽 10輕量化，減輕作業者之負擔，並且可削減製作之作業工 時及實現構件之成本降低H藉由上述輕量化而減輕 對用以進行該筒槽H)之自轉及公轉運動之驅動源（例如驅 動馬達）之負載，藉此可實現筒研磨裝置丨之節能化且可 抑制筒研磨裝置1之劣化。 當更換先前之筒槽之内襯時，有加熱去除形成内襯之 橡膠後形成新内襯之情形。然而，於此種更換方法中，重 新形成内襯13之成本與研磨筒槽1〇之製造成本相差不 大’因此亦可不更換内襯13而使用新筒槽1 〇。 如上所述，由於操作人員手動地將投入有介質及工件 之筒槽10載置於離心筒研磨裝置内，故而越輕量越好。因 此，於本實施形態中，使用將樹脂作為基體，於該樹脂中 分散研磨粒而形成之介質。與藉由研磨粒而形成之介質相 比為輕量，但若研磨粒之含有率較低，則無法獲得充分之 研磨力’因此研磨粒之具有率相對於介質較佳為3〇〜7〇質 m /〇，較理想為具有40〜60%。又，較佳為將上述介質之重 量設為0_01〜50 g，較理想為設為〇.〇2〜4〇 g，或將上述介 質之比重設為1.6〜2.4，較理想為設為1>8〜2 _2。若重量或 201213045 比重小於上述範圍，則筒槽1 0内之筒之流動不充分而無法 獲得充分之研磨力，若重量或比重大於上述範圍，則當研 磨時由於工件與介質之碰撞而於工件之表面產生打痕。再 者’上述樹脂可較佳地使用熱塑性樹脂（例如尼龍樹脂、 聚苯乙烯樹脂、聚丙烯樹脂、聚醯胺樹脂、AS ( Acrylonitrile Styrene ’丙烯腈—苯乙烯共聚物）樹脂等）或熱固性樹脂（例 如酚樹脂、不飽和聚酯樹脂、聚胺基曱酸酯樹脂、環氧樹 脂、脲樹脂等）。作為研磨粒，可較佳地使用公知之材料 (例如氧化鋁、二氧化矽、碳化矽、氧化鐵、氧化硼、锆 英石、氧化鉻、金剛石、金剛砂及該等之粉末、或以該等 為原料之成形物等）。χ，研磨粒之粒度可根據研磨粒之 種類”處之大小、工件之性狀及研磨之目的適當選擇。 又上述’丨質之形狀考慮有球形、柱形狀（圓柱、多 角柱）、圓錐形狀算，士π闰 寺士圖5所不，為由具有圓形剖面且 具有連續的相同剖面積之直體部、及由上述剖面積連續缩 t之縮徑部而形成之形狀。具有比球形介質更強之研磨 二=錐形狀或㈣狀般，”不會隨著研磨進行而 磨損’一面維持相同形狀-面㈣，因此可長時 =較…磨力…若上述直體部之角面、上述直 之部 交m缩徑部之頂點（縮徑最多 介質之破裂或缺口，或於工株；成為基點產生碎屬而導致 因此使用對該銳角部實施_ 打：）’ 形成具有銳角部之介質後士 之〇。创a加工可於 “後加工’亦可於介質之形成時即形 15 201213045 成為不具有銳角部，兩者均可β 上述介質之大小根據工件之性狀、研磨之目的、筒槽 之大小等適當選擇，較佳為根據上述圆形剖面之直徑大致 為1〜50 mm，較理想為2〜40 mm而加以選擇。又，於如 上所述之形狀之介質中，上述圓形剖面之直徑D及與上述 圓形剖面正交之剖面的長度L之比D : L較佳為i : :1.5。若L小於D，則無法獲得充分之研磨力，若L較大， 則研磨時產生介質之單方磨摘。 再者，使用本發明之研磨單元之離心筒研磨裝置可為 乾式離心筒研磨裝置、濕.式離心筒研磨裝置中之任一者。 [實施形態之效果] (1)根據本發明之研磨單元！，藉由按壓構件22a將 槽蓋12 @垂直下方按壓，可藉由適當之按壓力將槽蓋 固定於本體部1 1，因此可無關於筒槽固定構件22與槽蓋 12之間隙而將筒槽10確實地固定於筒槽箱體2〇。 又，由於按壓構件22a之接觸部22e與槽蓋12之外形 形狀相對應，因此防止按壓構件22a與槽蓋12產生鬆動而V 可將槽蓋12確貫地固定於本體部η。 由於可將槽蓋12於相同之按壓狀態下固定於本體部 1 i，因此無需一對一地限定本體部丨丨與槽蓋12之組合， 從而可製成本體部11.及槽蓋12具有與其他槽蓋及本體部 之相容性之研磨單元1。[Embodiment; J. Description of the grinding clay used in the centrifugal barrel polishing apparatus of the present invention. Furthermore, the present invention is not limited to the following embodiments. As shown in Fig. 1, the spleen secrets, the 剖面 Λ 纵 之 之 之 之 之 之 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜 乜The upper opening portion 1 la is too sturdy, and the workpiece is inserted into the workpiece and the groove cover 12 is sealed in the opening portion. In the present beak yoke form, it is an 8-sided shape. (10) The longitudinal section of the bay groove 10 is formed on the inner surface of the body portion 11 and below the groove cover 12 to benefit the soil phase π ττ, and the following is the same as the previous grinding, which is formed to prevent each The inner liner 13 formed by the abrasive member. #的耐磨性# Sexual rubber win is used to fix the trough cover 12 to the body adjacent to the main body " the doorway Qiu η σ & 盍 fixed member Μ the opening Ρ 11 a outside the fixed side is set in the trough cover 4 parts of 12: solid-position (hole portion Hb) The groove cover fixing member 14 includes: the indexing pin "in the body portion 11 of the drawing #,. α, the system § will be installed with the groove 12 relative to the body portion The trough cover pressing member 14b, the crucible 14a is passed through the empty position, and is clamped to the predetermined position of the plug or the ball or the equal position of the equal-rate tank cover 12 (not shown). The division of Lu is based on the division of the knife for the distribution of the knife! The sodium 14a can loosen the tank cover 12, and the system is pressed by the broadcast test 12 to the main body U. The state of the diagram. The main body portion 11 201213045 Fig. 3 shows the structure of the groove cover fixing member 14 and the structure and fixing method for fixing the groove cover 12 to the body portion U by the groove cover fixing member 14. Here, the upper half of Fig. 3(A) and Figs. 3(B) to 8(8) are perspective views of the fixed structure viewed from the side. The lower half of Fig. 3(A) is a plan view of the main body portion viewed from above. As shown in FIG. 3(A), the groove cover pressing member 14b is configured to penetrate the groove cover 12 and to rotate the cylindrical portion of the ritual portion nb that can be inserted into the body portion n by the operation of the indexing pin 14a. An inclined groove 14c is formed in the cylindrical portion of the insertion hole portion lb, and a fixed pin 1lc for guiding the inclined groove in the up-and-down direction is provided inside the hole portion 1lb. As shown in Fig. 3(B), the groove cover pressing member 14b is inserted into the hole portion 1lb of the main body portion 11, and as shown in Fig. 3(C), the indexing pin 14a is moved in the direction of the arrow L of Fig. i. The groove cover pressing member 14b is rotated, and the indexing pin 14a is moved downward by the guide pin lie guiding the inclined groove 14c. Then, after the indexing pin 14a reaches the predetermined position, the latch protrudes toward the side to position the groove cover pressing member 14b at a predetermined rotational position, as shown in FIG. 3(D), pressing the upper surface of the groove cover 12 The slot cover 12 can be fixed to the body portion 11. Here, since the indexing pin 14a is positioned at a predetermined position (the one end L of the arrow of FIG. i), the displacement of the body portion 11 by the groove cover 12 via the indexing pin pressing member 14a can be made to be displaced by the groove cover pressing member 14a. A fixed amount (ie, the pressing force is fixed). When the indexing pin 14a is rotated in the direction of Fig. 2, the pressing of the slot cover 12 is released, so that the slot cover 12 can be removed from the main body portion 11. Thus, the cylindrical groove 10 is provided with the groove cover 10 for fixing the groove cover 12 to the main body portion 11 201213045. The fixing member Η ' can be easily and surely fixed, so that the matching between the main body portion 11 and the groove cover 12 is not considered. The main body portion of the groove cover 1 2 is compatible with the other groove cover and the body portion. Here, the position and the number of the groove cover fixing members 14 are set as appropriate depending on the size of the groove 10 or the like. As shown in FIG. 2, the cylindrical tank body 2 includes a tray 21 on which the cylindrical groove is placed and held, and the cylindrical groove fixing member and the loading and unloading cylindrical groove 10 are fixed to the tray 21 so that the cylindrical fixing member 22 guides the pair of guide portions 23 in a movable manner in the horizontal direction (the direction of the rotation axis in the present embodiment). The canister case 2 is attached to a transposition (revolution disk) of a centrifuge device (not shown) so as to be rotatable by rotary drawing 24. The guide portion 23 is provided on both side surfaces in the direction of the rotation axis, and is formed in an annular shape as follows: when the cylindrical groove fixing member 22 is inserted, the inner circumferential surface of the guide portion and the outer circumference of the cylindrical groove fixing member 22 Between the faces, a gap is formed which does not hinder the movement of the cylindrical groove fixing member 22. The tubular member fixing member 22 is provided with a pressing member mountain which is mounted on the position facing the tray 21 so as to press the cylindrical groove 1 垂直 vertically downward, and presses the cylindrical groove W·' and the positioning member. The protruding member coffee is configured to restrict the movement of the cylindrical groove fixing member 22 with reference to the guide portion η when the cylindrical groove fixing member is attached. According to the member 22a, for example, the upper and lower positions are adjusted by tightening the bolt milk, and the lid 12 can be pressed vertically downward. The contact 按压22e pressing the groove cover u corresponds to the outer shape of the upper surface of the groove cover 12. The convex member 22c is formed on the upper surface of the 11 201213045 cylindrical groove fixing member 22 so as not to pass through the convex shape of the guide portion 23, and is disposed when the cylindrical groove fixing member 22 is attached to the fixed position of the cylindrical groove 1 The direction of movement of the mounting direction (arrow (Μ) in Figure 2 (eight)). In the present embodiment, the protruding member 22d is formed in a plate shape, and is configured to be housed in the inside of the groove fixing member 22, and is protruded outward from the inside of the tamping member 22 by a spring or the like ( Figure 2 (a) arrow X direction) is pressed. The protruding member 22d is formed so as to protrude when the cylindrical groove fixing member 22 is attached, and restricts the movement of the cylindrical groove determining member 22 in the releasing direction (the arrow direction of Fig. 2(A)). When the cylindrical fixing member 22 is released, the protruding member 22d is housed inside the cylindrical fixing member 22 against the biasing force, whereby the movement restriction can be easily released and moved. Further, the guide portion 23 on the mounting direction side may be formed in a cup shape in the releasing direction: instead of the above-described ring shape. In this case, the cartridge can also be restrained. The use of the polishing unit 1 of the present embodiment will be described below. The groove portion 12 is placed on the Ua, and the indexing pin (4) is fixed to the groove fixing member 14 to fix the groove cover n to the main body portion 11β. Next, the protruding member 22d is pressed and housed in the inside of the cylindrical groove fixing 4 The cylinder fixing member 22 is moved in the direction of the guide portion 2... (the direction of the arrow N in Fig. 2(A)). 12 201213045 , Dust, the trough ίο is placed on the tray 21, 23 6m - and is mounted along the guiding portion 23 to the mounting position of the gutter fixing member 22 in the direction f9 f Λ, the door slot 1 固定In the 22d direction (in the direction of the arrow 图 in Fig. 2(A)), the second movement is reported. Here, in the protruding member 22d, the inclined portion 22f which is wide toward the mounting direction M is formed, and therefore, the right groove fixing member 22 is moved to the mounting direction by u# φ ψ ^, and the borrowing is performed. The large-outlet member 22d is pressed by the guide portion 23 in the γ direction of the arrow γ in Fig. 2(A). In the case where the projecting member 22d passes through the guide portion 23, the tubular member fixing member 22 is again placed at a predetermined position. Thereafter, the pressing member 22a is lowered by the fastening bolt 22b, the groove cover is pressed vertically downward and the sealing portion is pressed, and the cylindrical groove 10 is fixed to the cylindrical housing. 20. Thus, by pressing the member 22a, the groove cover 12 can be pressed vertically downward, 7 the groove cover 12 is fixed to the body portion u by a suitable pressing force, and therefore, regardless of the η a - of the groove fixing member 22 and the groove cover 12 γ - , and the gap is formed, and the groove 1 〇 can be surely fixed to the canister 20 . Further, since the contact portion 22e of the pressing member 223 corresponds to the shape of the groove cover 12, the loosening of the cover member 12a and the groove cover 12 is prevented, and the groove cover 12 can be surely fixed to the body portion 丨i. Since the slot cover 12 can be fixed to the main body U in the same pressing state, it is not necessary to fix the combination of the main body portion and the slot cover 12, so that the main body portion 11 and the slot cover 12 can be formed with respect to the other slot cover and The body portion has a compatible grinding unit 1. The trough used in this embodiment! The body part of the crucible is produced by welding the metal sheet forming the side surface of the metal sheet on the columnar surface by means of spot welding 13 201213045. In the past, the cylindrical body portion was formed by full-week welding by arc welding or the like, and there was a large amount of heat input, which caused a melt loss, and the thickness of the metal plate was 3 mm or more. Thick. On the other hand, as in the present embodiment, the welded portion of the main body portion is formed by the spot welding method, whereby the metal sheet is reduced in melting loss, so that the main portion can be made using a thin metal plate of about 1 mm. u. Thereby, the tubular groove 10 can be lighter, the burden on the operator can be reduced, and the manufacturing time and the cost of the component can be reduced. H is reduced by the above-mentioned weight reduction for the rotation of the groove H). The load of the driving source (for example, the driving motor) of the revolving motion can thereby achieve energy saving of the barrel polishing apparatus and suppress deterioration of the barrel polishing apparatus 1. When the lining of the previous cylinder is replaced, there is a case where a new lining is formed by heating to remove the rubber forming the lining. However, in this replacement method, the cost of re-forming the inner liner 13 is not much different from the manufacturing cost of the polishing cylinder 1'. Therefore, it is also possible to use the new cylinder 1 without replacing the inner liner 13. As described above, since the operator manually places the cylinder 10 into which the medium and the workpiece are placed in the centrifugal barrel polishing apparatus, the lighter the weight, the better. Therefore, in the present embodiment, a medium in which a resin is used as a matrix and the abrasive grains are dispersed in the resin is used. It is lighter than the medium formed by the abrasive grains. However, if the content of the abrasive grains is low, sufficient polishing force cannot be obtained. Therefore, the ratio of the abrasive grains is preferably 3 〇 to 7 相对 with respect to the medium. The mass m / 〇 is preferably 40 to 60%. Further, it is preferable that the weight of the medium is 0_01 to 50 g, preferably 〇. 2 to 4 〇 g, or the specific gravity of the medium is set to 1.6 to 2.4, preferably 1 gt; 8~2 _2. If the weight or the specific gravity of 201213045 is less than the above range, the flow of the cylinder in the cylinder 10 is insufficient, and sufficient grinding force cannot be obtained. If the weight or specific gravity is larger than the above range, the workpiece is collided with the medium during grinding. The surface is scratched. Further, 'the above resin may preferably be a thermoplastic resin (for example, a nylon resin, a polystyrene resin, a polypropylene resin, a polyamide resin, an AS (Acrylonitrile Styrene) resin), or a thermosetting resin. (for example, phenol resin, unsaturated polyester resin, polyamino phthalate resin, epoxy resin, urea resin, etc.). As the abrasive grains, a known material (for example, alumina, ceria, lanthanum carbide, iron oxide, boron oxide, zircon, chromia, diamond, corundum, and the like, or such a powder may be preferably used. It is a molded product of raw materials, etc.). χ, the particle size of the abrasive particles can be appropriately selected according to the size of the abrasive particles, the properties of the workpiece, and the purpose of polishing. The shape of the above-mentioned enamel is considered to have a spherical shape, a cylindrical shape (cylindrical, polygonal column), and a conical shape. In the case of Fig. 5, it is a shape formed by a straight body portion having a circular cross section and having a continuous same sectional area, and a reduced diameter portion continuously constricted by the sectional area. Stronger grinding = = cone shape or (four) shape, "does not wear as the grinding progresses" while maintaining the same shape - surface (four), so long time = more friction... if the angle of the straight body, The apex of the straight portion is the apex of the reduced diameter portion (the diameter is reduced by the rupture or the notch of the medium, or the plant is formed; the base point is broken, so that the use of the acute angle portion is performed), and the medium having the acute angle portion is formed. The sergeant.创 a processing can be used in "post-processing" or in the formation of a medium. Form 15 201213045 does not have an acute angle, both can be β The size of the medium depends on the nature of the workpiece, the purpose of the grinding, the size of the groove, etc. Preferably, it is selected according to the diameter of the circular cross section being approximately 1 to 50 mm, preferably 2 to 40 mm. Further, in the medium having the shape as described above, the diameter D of the circular cross section and The ratio D: L of the length L of the cross section orthogonal to the circular cross section is preferably i : : 1.5. If L is less than D, sufficient polishing force cannot be obtained, and if L is large, the medium of the medium is generated during polishing. Further, the centrifugal barrel polishing apparatus using the polishing unit of the present invention may be any one of a dry centrifugal barrel polishing apparatus and a wet type centrifugal barrel polishing apparatus. [Effects of Embodiments] (1) According to the present invention The grinding unit!, by pressing the groove cover 12 @ vertically downward by the pressing member 22a, the groove cover can be fixed to the body portion 1 by a suitable pressing force, so that the groove fixing member 22 and the groove cover 12 can be omitted. The groove 10 is fixedly fixed by the gap Further, since the contact portion 22e of the pressing member 22a corresponds to the shape of the groove cover 12, the pressing member 22a and the groove cover 12 are prevented from being loosened, and V can securely fix the groove cover 12 to the groove cover 12. The main body portion η. Since the groove cover 12 can be fixed to the main body portion 1 i in the same pressing state, it is not necessary to define the combination of the main body portion 丨丨 and the groove cover 12 one by one, so that the main body portion 11 can be formed. The tank cover 12 has a grinding unit 1 that is compatible with the other tank covers and the body portion.
⑺由於筒槽固定構件22係以當裝卸筒槽1〇時於水 平方向上可移動之方式而構成，因此可使筒槽固定構件U 16 201213045 不阻礙筒槽ίο之裝卸.，筒槽1〇之裝卸變得容易。 並且，當將筒槽固定構件22安裝於筒槽1〇之固定位 置日守’藉由凸構件22c及突出構件22d以導向部23為基準 可限制筒槽固定構彳22之移動，因此可容易地將筒槽1〇 配置於固定位置而使其不移動。 (3)同槽1〇具備藉由操作分度銷i4a而將槽蓋a固 定於本體部11之槽蓋固定構件14，可簡單且確實地進行固 定’因此不考慮本體部11與槽蓋12之匹配性亦可，從而 使本體部η及槽蓋12成為具有與其他槽蓋及本體部之相 容性者。 · 對若干本發明之實施例進行了說明。然而，仍應當理 解不脫離本發明之主旨及目的，可實現各種變更例。 【圖式簡單說明】 包含於說明書-之一部分、 地表示本發明之較佳之實施形 之較佳實施形態之詳細說明均 用0 且構成說明書之附圖係概略 態，上述之一般說明及以下 對說明本發明之主旨發揮作 诉衣不本發明之研磨單元 ,扣丁〜、间倌之稱造的！ 1 (Α)係筒槽之立體圖’圖1⑻係側面透視 圖2係表示本發明之研磨單元之構造之說明圖。！ 係研磨單元之立體圖，圖2⑻係圖2(Α)之 箭視放大剖面圖。 中之I:?)〜圖3(D)係表示本發明之研磨單元之， 固疋構件之構造及藉由槽蓋固定構件將槽蓋运 17 201213045 於本體部之方法的說明圖。 圖4係表示先前之研磨單元之立體圖。 圖5係表示本發明之介質之形狀之說明圖。圖5 ( A ) 為前視圆，圖5 ( B )為圖5 ( A)中之A-A線箭視圖（仰 視圖）。 【主要元件符號說明】 1、100 研磨單元 10 、 110 筒槽 11 本體部 11a 開口部 lib 子L部 11c 固定插銷 12、1 12 槽蓋 13 内襯 14 槽蓋固定構件 14a 分度銷 14b 槽蓋按壓構件 14c 傾斜槽 20 、 120 筒槽箱體 21 托盤 22 筒槽固定構件 22a 按壓構件 22b 緊固螺栓 22c 凸構件 18 201213045 22d 突出構件 22e 接觸部 22f 傾斜部 23 導向部 24 旋轉軸 111 本體 113 肩部 121 固定構件 122 操作桿 123 偏心棒 124 凸輪 19(7) Since the cylindrical groove fixing member 22 is configured to be movable in the horizontal direction when the cylindrical groove 1 is loaded and unloaded, the cylindrical groove fixing member U 16 201213045 can be prevented from being blocked from loading and unloading. It is easy to load and unload. Further, when the cylindrical groove fixing member 22 is attached to the fixed position of the cylindrical groove 1〇, the movement of the cylindrical fixed structure 22 can be restricted by the convex member 22c and the protruding member 22d with reference to the guide portion 23, so that it is easy The groove 1〇 is placed at a fixed position so as not to move. (3) The same groove 1 is provided with the groove cover fixing member 14 which fixes the groove cover a to the main body portion 11 by operating the index pin i4a, and can be fixed simply and surely. Therefore, the body portion 11 and the groove cover 12 are not considered. The matching is also possible, so that the body portion η and the groove cover 12 have compatibility with other groove covers and body portions. Several embodiments of the invention have been described. However, it should be understood that various modifications can be made without departing from the spirit and scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS The detailed description of the preferred embodiments of the preferred embodiments of the present invention, which are included in the specification, The main purpose of the present invention is to make a grinding unit which is not the invention of the invention, and is made by the name of the 〜~, 倌 !! 1 (Α) is a perspective view of a cylindrical groove. Fig. 1 (8) is a side perspective view. Fig. 2 is an explanatory view showing a structure of a polishing unit of the present invention. ! A perspective view of the grinding unit, and Fig. 2 (8) is an enlarged cross-sectional view of Fig. 2 (Α). I:?) to Fig. 3(D) is an explanatory view showing a structure of the fixing member of the polishing unit of the present invention and a method of transporting the groove cover by the groove cover fixing member to the body portion. Figure 4 is a perspective view showing a prior grinding unit. Fig. 5 is an explanatory view showing the shape of the medium of the present invention. Figure 5 (A) is the forward circle, and Figure 5 (B) is the A-A arrow view (the bottom view) in Figure 5 (A). [Description of main component symbols] 1. 100 Grinding unit 10, 110 Catheter 11 Main body part 11a Opening part lib Sub-L part 11c Fixing pin 12, 1 12 Slot cover 13 Lining 14 Slot cover fixing member 14a Indexing pin 14b Slot cover Pressing member 14c Inclined groove 20, 120 Tubular case 21 Tray 22 Cylinder fixing member 22a Pressing member 22b Fastening bolt 22c Male member 18 201213045 22d Projection member 22e Contact portion 22f Inclined portion 23 Guide portion 24 Rotary shaft 111 Main body 113 Shoulder Portion 121 fixing member 122 operating lever 123 eccentric rod 124 cam 19