200827100 2bbU4pif 九、發明說明： 【發明所屬之技術領域】 本發明是關於一種適合於對由玻璃、陶瓷等脆性材料 構成的板狀物進行研削的旋轉磨石，尤其是關於一種適用 於對液晶顯示器用板玻璃（厚度為〇1〜〇7 mm)或電漿 顯示器用板玻璃（厚度為U〜3.0謹）等顯示器用板玻 璃進行倒角加工的旋轉磨石。200827100 2bbU4pif IX. Description of the Invention: [Technical Field] The present invention relates to a rotating grindstone suitable for grinding a plate composed of a brittle material such as glass or ceramics, and more particularly to a liquid crystal display suitable for use in a liquid crystal display. A rotating grindstone that is chamfered by a plate glass such as a plate glass (thickness of 〇1 to 〇7 mm) or a plate glass for a plasma display (thickness of U~3.0).
I先前技術】 ^ π电优、调人電腦、； 話等f方面。而且，電漿顯示器多用於大屏幕電視。 就曰曰顯示器或電漿顯示器等顯示 都其要面上存在内部缺陷（氣泡、混人里物等） 生像變形或不正常、污點、亮:等物 清晰的致命傷，因而，自製造至::成為導致顯示不 在維持高精度及精密性之嚴格管理下=行為止’須 是切 面生=續工序中會容易^ 產生上1缺知或破損，須實施倒角加工。、為了防止 由將ΐ:槽;板用板麵的倒角加工，是藉 ㈢見稍見於板破螭厚度的環 秸 磨石按麼在板破璃的端面而 曰的粗研削用旋轉 有同樣形狀的環狀槽的精力 ：:繼而，藉由將具 用疑4磨石按壓在板玻 200827100 25604pif 璃的端面而進行精加工研削。 '结合通J鑽=輪研削:=,d使用的是砂輪（金屬I prior art] ^ π power excellent, tune the computer,; words and so on. Moreover, plasma displays are mostly used for large screen televisions. In the case of a display such as a 曰曰 display or a plasma display, there are internal defects (bubbles, mixed objects, etc.), and the image is deformed or abnormal, stained, bright, and the like is fatal. Therefore, from manufacture to: :Because the display is not under the strict management of maintaining high precision and precision = the behavior is stopped. 'It must be the cut surface. The continuous process will be easy. ^The above 1 is missing or damaged. Chamfering must be performed. In order to prevent the chamfering of the slab: the plate is used for the chamfering of the plate surface, it is the same as the ring-grinding stone which is slightly seen in the thickness of the slab of the slab. The energy of the shape of the annular groove:: Then, the grinding is performed by pressing the end face of the plate glass 200827100 25604pif glass with the suspected 4 grindstone. 'Combined J drill = wheel grinding: =, d uses a grinding wheel (metal
Wheel)5tt^|^l , ^ Γ Diam〇nd 〇rinding 金屬底座的外具有孔部白_狀（圓環狀） 士 外周面女裝由金屬結合劑所保持的鑽石磨粒層 浐脸其甲’作為精加工研削用旋轉磨石，使用的是由 :二广酿樹脂等而使金屬底座的外周面黏合有碳化石夕 魏的砂輪（樹脂結合劑砂輪，Resin_Bonded 墨接2藉由將形成於各旋轉磨石上的環狀槽 加工研离的端面而進行倒角加工顿 缺損或破損疋ιί板玻㈣行研科，板玻璃有時會 石是藉由利用:==^=有=口工:削用旋轉磨 粗研削用旋轉磨石相 ，荷較大，容易二：一 加工:射越=大板破璃的移動速度’或者越是增大精 [專利文獻1]曰本專利特開平9-235145號公報 200827100 25604pit 覆液狀狀tr種使板玻璃的端部預先坡 倒角加工的方法層硬化之後’再利用磨石進行 面塗佈=方法，絲於板破璃端部的表 倒角加工，二：:對該樹脂及板玻璃的端部進行 缺错此了不會出現缺損等缺陷。 工的蹚2於上述方法中，需要對板玻璃的欲進行倒条+ 工的^部的整個表面塗佈 ^丁倒角加 f i 倒角加工之後去降計h相曰的工粒，進而也需要在 而，4去除奴存在板玻璃表面的樹脂的工程，钕 2在導致生產效率大幅降低的問題。 故 【發明内容】 #日、月的目的在於提供一種不會導致生產效率降你， r、L更對板玻璃的端部進行倒角加工亦能约防止產二妹 f損的旋轉磨如及板朗的端面加工方法。以 二發明者等人為達成上述目的而反 广树發現’在利用旋轉磨石對板 二種： ::時，藉由使用可使施力蝴璃的衝擊力降^ 破璃產生缺損或破損，從而提出本發:： 於圓盤狀金屬底座的外周面，設有由彈性材二=墼 吸收層，且於該衝擊吸收層的表面設有磨粒層4構成的衝擊 而且，本發明的旋轉磨石的特徵在於 由熱固性樹脂所形成。 野合及收層疋 而且，本發明的旋轉磨石的特徵在於， 選自笨祕、彻^脂、難、三聚蝴脂^ 7 200827100 2^o〇4pit 树月曰、聚胺基甲酸醋樹脂、環氢 石農酸酯樹腊之群中的=。切期曰、聚紅胺樹脂、聚 旦，本發明的旋轉磨石的特徵在於，磨粒層是由大 罝的熱雌麟為主成分的結合劑賴成。 破璃的賴祕翻翻加工方法，是藉由使板 ==轉磨石，對移動而進行加工的，此加工方 屬底座的外^上核轉磨石具有町構造：於®盤狀金 板玻：厚加工方法的特徵在於， 板玻:i严ί發:;板玻璃的端面加工方法的特徵在於， 反每的尽度小於等於0·7_ι。 [發明效果] 間介有由彈二:::中’於圓盤狀金屬底座與磨粒層之 接觸至旋轉磨i 施加於被加工物白;用，吸收層的彈性變形’來緩和 破璃的端部進行倒肖1此’當使用錢轉磨石來對板 玻壤的衝擊力，從^工日可，可缓和自旋轉磨石施加至板 或破損，可獲得細加工’故而可防止產生缺損 角加工面。而且ϋ研磨而無不均的圓弧狀（尺狀）倒 較大，則玻璃板的迪:又而言’若旋轉磨石對破壤板的負荷 起的摩捧一 i r會產生灼燒不良，gp，由因研削引 手L而咖离表面軟化變形的現象，但本 200827100 25604pif 旋轉磨石對玻璃板的負荷較小，故而亦可防止產生灼燒不 良。 而且，本發明的旋轉磨石，即便高速旋轉，其施加至 板玻璃的衝擊力亦較小，故而，不會發生缺損或破損，且 可縮短倒角加工的時間，亦可大幅提高生產性。 而且，本發明的旋轉磨石可均勻地對玻璃板的端面進 打微細加工’故而可將堵塞於環狀槽内的玻璃粉等異物抑 制:極小’從而’可製成因所述異物所產生的灰塵較少而 具β清潔表面的玻璃板。 而且，根據本發明的板玻璃的端面加工方法，可高效 地生ί無ί損或破翻清潔板朗。因此，適麟對於要 求具有較⑥的尺寸精度及表面品質的顯示器用板玻璃進行 倒角加卫巾，尤其可較好地祕厚度小於等於0.7 mm且 若受到微猶擊亦容易破_液晶顯示㈣板玻璃的倒角 加工中。 【實施方式】 、本旋轉磨石的特徵在於具有町構造：於圓盤 狀金屬底座的外周面，設有由彈性材料構成的衝擊吸收 層，且於該衝擊吸收層的表面設有磨粒層，其中，構成旋 轉磨石中心部的圓盤狀金屬底座的材質可使用紹、鋼、超 硬合金、鉬、鉬合金、金屬陶瓷（cermet)、鈦或陶瓷等。 另外，作為鋼材料，例如可使用高碳工具鋼（以幼-⑶此⑽ tool steel )、合金工具鋼（aU〇y t〇〇1 sted )、高速鋼 (high-speed steel)等。 9 200827100 25604pif 旦人/ 的磨粒層是藉由對黏合材料與大 用以熱:，為主成分的樹脂結合二可等使 而J ’：：磨粒，可使用鑽石粒子、氧化鋁粒子、碳化矽 :::氮化硼粒；、金屬氧化物粒子、金屬碳化物 的比制===物粒子等。構成磨粒層的黏合材料與磨粒 疋，黏合材料為3〇〜97體積％，磨粒為3〜 70二積/0，亚且以自磨粒層的外表面露出有磨粒的一部分 ίΓΓ作。而且，磨粒的粒徑可根據其研削量及精加 工，面粗度要求等級來選擇，例如可在# !⑽〜遞，較好 的疋在#600〜1〇〇〇的範圍内適當選擇。 而且，作為介於圓盤狀金屬底座與磨粒層之間的 吸收層的材質，下述材料畸為谪人· 為適σ.具備當被加工物接觸 於㈣磨石時可降低施加至被加工物_擊力的高彈性， ^便長期曝露在高溫下亦不會㈣。具體而言，適合的 是苯紛樹脂、ABS樹脂、糊樹脂、騎脂、三聚氛胺樹 =”脂、聚胺基甲酸酯樹脂、環氧樹脂、聚^亞胺 树月曰、聚破酯樹脂等油性麟。尤 變形且廉價，故而最為合適。而且，若衝擊吸收 較小，則無法獲得充分的衝擊吸收性能，另—方面，若严 度較大，則旋轉磨石容易變形，故而應將衝擊吸收声= 度限制在5〜3〇mm，較好的是1Q〜2()mm的範圍内日。 =，本發_旋轉磨石的旋轉周速度，可根據 磨石及被加工物的材質及形狀、被加工物的移動速度、研 10 200827100 25604pif 削量等來作读各嘴敕 行精加工研：：”j當對液晶顯示器用板玻璃進 二in，I 可將旋轉崎度調整成誦〜测 咖:好的是l_〜2_m/min。 底座在c::的旋轉磨石時’首先準備圓盤狀的金屬 合於由“’使s盤狀金屬底座的外周面接 為圓環壯，=it 吸收層。該衝擊吸收層的形狀 面。· /、内周面抵接於圓盤狀金屬底座的外周 ==衝擊吸收層的外周面，利用黏接劑接合磨： Ϊ吸圓環狀’錢其内周面抵接於衝 f θ 、周面。其後，對磨粒層實施工具加工 ，二ngJ打•磨（dressing)’於其外周面形成單條或多條 辰狀払，猎此製成旋轉磨石。 本發明的板玻璃的端面加工方法，是藉由 端面沿旋轉磨石相對移動 〜 螭勺 ^於具有以下構造：於_狀金屬底朗外周面，言^ 由舞性材料構成的衝擊吸收層’且於該衝擊 : =磨.層，作為所使用的板玻璃，較好的是▲度二 寻於3.0mm，更好的是小於等於〇.7mm。 、 實施例1 以下，根據實施例詳細說明本發明。 石圖二表示本發明的旋轉磨石10的立體圖。該旋轉磨 lf) r。括·於中心具有孔部的銘製圓盤狀金屬底座 a C外徑為120 mm、内徑為8〇 mm、厚 - 接合於上麵綠驗轉 200827100 25604pif 酚樹脂製衝擊吸收層H)b(厚度為1Qinm);以及，接合於 上述衝擊吸收層i〇b外周面的圓環狀磨粒層1〇c(厚度為5 上述圓盤狀金屬底座l〇a與衝擊吸收層1〇b之間利用 - 耐熱性黏接劑而接合著，衝擊吸收層l〇b與磨粒層i〇c之 ^亦是利用耐熱性黏接劑而接合著。而且，磨粒層他是 藉由將大量鑽石磨粒（例如粒徑為#6〇〇〜1〇〇〇)與金屬結 Γ 合制（黏合材料）的混合物燒成為圓環狀而製成。而且， 對上述磨粒層1()e實施工具加工、打磨，從而使其外表面 形成有多，（例如10〜30條）環狀槽1〇d(槽寬為1〇mm> 圖2是表不上述旋轉磨石1〇與驅動源的連結構造的說 月p。旋锝磨石1〇是經由形成於其中心的孔部而同軸地連 結於旋轉軸11，且該旋轉軸u經由安裝於傳送帶輪I】上 的傳送帶13而連結於馬達14，當馬達14運轉日寺，旋轉轴 Η進行旋轉驅動，藉此，旋轉磨石1〇進行周旋轉。 ，繼而，說明使用上述旋轉磨石1〇對板玻璃進行倒角加 k 工的方法。 μ圖3是表示本發明的板玻璃^的倒角加工方法的實施 形悲概念的主要部分概略立體圖。如圖3所示，板玻璃G _藉由帶式輸送機等傳送機構（省略圖示），向沿著端面的方 f (W中的箭頭方向）以固定的速度移動，並壓接扣合於 °又置在傳送路徑中途兩侧的旋轉磨石15、16。作為位於傳 送方向的上游側的粗研削用旋轉磨石15，可使用普遍使用 的金屬結合劑鑽石砂輪，而且，作為位於下流侧的精加工 12 200827100 25604pif 叮使用如上所述的本發明的旋轉磨石 研削用旋轉磨石16 10 〇 上述旋轉磨石Γ5、的旋轉方向設為與板玻璃g的 移動方向相反的方向。而且，各旋轉磨石15、16的旋轉轴 線的偏斜可在〇〜45。的範圍内，通常適當的是在〇〜3〇。 左右的範圍内。 本發明尤其好的是，適用於薄壁的液晶顯示器用板玻 璃的倒角加工中。例如，當對尺寸為11〇〇χΐ25〇χ〇7腿 的液晶顯示器用板玻璃的端面進行精加工研削時，一邊以 的速度傳送板玻璃G，_邊藉由首先將板玻璃g =至粗研削旋轉磨石15,而對板_G的兩端面進行粗研 ，^而，將板玻璃G送至精加工研削用旋轉磨石16，藉 G的兩端面進行精加卫研肖彳。另外，進行如 件設定：粗研_旋轉磨石15的直 南度(轴線方向寬度）· 1G〜4Gmm、磨石 〜6〇〇、旋轉周速度為1500〜35〇〇 m/mm，而且，= 研削用旋轉磨石16的直徑為 _ 精力 产）爲如1nn ^仫為150 mm、高度（軸線方向寬 ^為30〜100mm、磨石粒度為#6〇〇〜 度為1800〜2000 m/min。而R… 万疋I周速 磨石面的堵塞。最終，卿心;對研削部位噴水，以防止 戶而盔兀& ^ 又于热缺知或破損且具有經均勻研 二。===:， 行倒角加工，未發生缺損或破損。、液晶_不器用板破璃進 如此，由於本發明的旋轉磨石具備衝擊吸收層，故而 13 200827100 25604pif 可緩和當職玻璃進行研料對板 此，本發明的旋轉磨石，適用於要 ==\面品質的顯示器用板麵，尤其可較好地用作對 2液日日齡㈣玻璃基板般薄壁且易破翻板 行 精加工研削的旋轉磨石。 、订 【圖式簡單說明】Wheel)5tt^|^l , ^ Γ Diam〇nd 〇rinding The outer base of the metal base has a white hole _ shape (ring shape). The outer peripheral surface of the women's outerwear is protected by a metal bond. 'As a rotary grinding stone for finishing grinding, a grinding wheel with a carbon carbide stone (a resin bond grinding wheel) and a Resin_Bonded ink joint 2 are formed by bonding the outer peripheral surface of the metal base to the second base resin. The annular groove on each rotating grindstone is machined to the end face and chamfered to be damaged or damaged. 疋ιί板玻璃(四) 研科, plate glass sometimes stone is used by: ==^=有=口工:Shaping with a rotating grindstone for grinding and grinding with a rotating grindstone phase, the load is large, easy two: one processing: the shot = the moving speed of the large plate broken glass 'or the more refined [Patent Document 1] 曰本专利特开平Japanese Patent Publication No. 9-235145, 200827100, 25604pit, in the form of a liquid-coated shape, in which the end portion of the sheet glass is subjected to a pre-slope chamfering process, and then the surface is cured by the use of a grindstone, and the method is applied to the end of the glass. Chamfering, 2:: Make a mistake in the end of the resin and the plate glass. Defects such as defects occur. In the above method, it is necessary to apply the entire surface of the plate glass to be inverted + the chamfering and the chamfering process. The work granules, in turn, need to be in the process of removing the resin of the slave glass on the surface of the glass, and the problem of the production efficiency is greatly reduced. Therefore, the purpose of the day and month is to provide a product that does not cause production. The efficiency is lower, r, L is more chamfered on the end of the plate glass, and it can also prevent the rotary grinding of the second-female f-loss and the end face processing method of the plate. The second inventor and others have achieved the above purpose. Hiroki found that 'when using the rotating grindstone to the two kinds of plates: ::, by using the impact force of the force-applying glass to reduce the damage or breakage of the glass, the present invention is proposed: The outer peripheral surface of the base is provided with an impact of the elastic material 墼 墼 absorbing layer and the abrasive absorbing layer 4 is provided on the surface of the impact absorbing layer. The rotating whetstone of the present invention is characterized by being formed of a thermosetting resin. Wild and reclaimed, and The invention relates to a rotary grindstone which is characterized in that it is selected from the group consisting of stupid, sturdy, difficult, trimeric butterfly ^ 7 200827100 2^o〇4pit tree scorpion, polyurethane vinegar resin, cyclohydrogenate tree In the group of waxes, the cut-off enamel, the poly-erythrine resin, and the poly-denier, the rotating grindstone of the present invention is characterized in that the abrasive grain layer is formed by a binder which is mainly composed of hot female lining of the big cockroach. The processing method of the glazing of the glass is processed by moving the plate == honing stone, and the outer core of the processing is the turret of the pedestal: the plate-shaped gold plate Glass: The thick processing method is characterized in that the plate glass: i is sturdy: the end face processing method of the plate glass is characterized in that the degree of the opposite is less than or equal to 0·7_ι. [Effect of the invention] The intervening is caused by the contact between the disk-shaped metal base and the abrasive grain layer to the rotating mill i applied to the workpiece white; and the elastic deformation of the absorbent layer to mitigate the glass The end of the inverted Xiao 1 this 'when using the money to grind the stone to the impact of the plate on the soil, from the work day, can ease the application of the self-rotating grindstone to the plate or damage, can get fine processing 'can prevent Create a defect angle machined surface. Moreover, the arc-shaped (small-shaped) that is smashed without unevenness is large, and the glass plate is di: In other words, if the rotating grindstone is loaded on the broken-leaf board, the ir will cause a burning failure. , gp, due to the phenomenon of softening and deforming the surface of the coffee by the grinding of the hand L, but the 200827100 25604pif rotating grinding stone has a small load on the glass plate, so it can also prevent the occurrence of poor burning. Further, the rotating grindstone of the present invention has a small impact force applied to the sheet glass even when it is rotated at a high speed, so that no breakage or breakage occurs, and the time for chamfering can be shortened, and the productivity can be greatly improved. Further, the rotating grindstone of the present invention can uniformly perform fine processing on the end surface of the glass sheet. Therefore, it is possible to suppress foreign matter such as glass frit clogging in the annular groove: extremely small 'and thus' can be produced by the foreign matter A glass plate with less dust and a beta clean surface. Moreover, according to the method for processing the end face of the sheet glass according to the present invention, it is possible to efficiently produce the slabs without damaging or breaking the sheet. Therefore, Shilin has chamfered and added sanitary napkins for the display panel glass which requires more than 6 dimensional accuracy and surface quality, especially for a secret thickness of 0.7 mm or less, and it is easy to break if subjected to micro-slamming. (4) The chamfering process of the plate glass. [Embodiment] The present rotating whetstone is characterized in that it has a town structure: an outer peripheral surface of a disc-shaped metal base is provided with an impact absorbing layer made of an elastic material, and an abrasive layer is provided on the surface of the impact absorbing layer. The material of the disc-shaped metal base constituting the center portion of the rotating grindstone may be steel, cement, molybdenum, molybdenum alloy, cermet, titanium or ceramic. Further, as the steel material, for example, a high carbon tool steel (a (3) tool steel), an alloy tool steel (aU〇y t〇〇1 sted), a high-speed steel, or the like can be used. 9 200827100 25604pif Dan / The abrasive layer is made by bonding the bonding material with the heat: the resin of the main component can be used for J ':: abrasive particles, diamond particles, alumina particles, Carbide carbide::: boron nitride particles; ratio of metal oxide particles and metal carbides ===object particles. The adhesive material constituting the abrasive grain layer and the abrasive grain 疋, the bonding material is 3〇977% by volume, the abrasive grain is 3~70二积/0, and a part of the abrasive grain is exposed on the outer surface of the self-abrasive layer. Work. Moreover, the particle size of the abrasive particles can be selected according to the amount of grinding and finishing, and the surface roughness requirement level, for example, it can be appropriately selected within the range of #!(10)~delivering, preferably 疋#600~1〇〇〇. . Further, as a material of the absorbing layer interposed between the disc-shaped metal base and the abrasive grain layer, the following materials are distorted and suitable for σ. When the workpiece is in contact with the (four) grindstone, the application to the quilt can be reduced. The high elasticity of the workpiece _ the impact force, ^ will not be exposed to high temperature for a long time (4). Specifically, it is suitable for benzene resin, ABS resin, paste resin, riding fat, trimeric amine tree = "fat, polyurethane resin, epoxy resin, polyimine tree, sputum, poly It is most suitable because it is deformed and inexpensive, and it is most suitable, and if the impact absorption is small, sufficient impact absorption performance cannot be obtained. On the other hand, if the severity is large, the rotating grindstone is easily deformed. Therefore, the shock absorption sound = degree should be limited to 5~3〇mm, preferably within the range of 1Q~2()mm. =, the rotation speed of the hair _rotary grindstone can be based on the grindstone and The material and shape of the workpiece, the moving speed of the workpiece, and the grinding and polishing of the 10200827100 25604pif, etc., are used to read the various nozzles: "j When the board glass for the liquid crystal display enters two in, I can rotate Saki adjustment to 诵 ~ test coffee: good is l_~2_m/min. When the base is in the c:: rotating grindstone, 'the first preparation of the disc-shaped metal is combined with the ''the outer peripheral surface of the disc-shaped metal base is a ring-shaped, =it absorption layer. The shape of the impact-absorbing layer. /, the inner peripheral surface abuts against the outer circumference of the disc-shaped metal base = the outer peripheral surface of the impact absorbing layer, and the joint is rubbed by the adhesive: sucking the annular shape, the inner peripheral surface of the outer surface abuts against the rush f θ , Afterwards, the abrasive layer is subjected to tool processing, and two ngJ dressings are formed on the outer peripheral surface thereof to form a single or a plurality of ridges, which are made into a rotating grindstone. The end face processing method is to relatively move by the end face along the rotating grindstone to have the following structure: on the outer peripheral surface of the _-shaped metal base, the impact absorbing layer composed of the dance material' and the impact: The grinding layer, as the sheet glass to be used, is preferably ▲ degree 2 to 3.0 mm, more preferably 小于. 7 mm. Example 1 Hereinafter, the present invention will be described in detail based on examples. A perspective view showing the rotating grindstone 10 of the present invention. The rotary grinding machine lf) r. Inscribed disc-shaped metal base with holes a C outer diameter of 120 mm, inner diameter of 8 mm, thick - joined to the above green test 200827100 25604pif phenolic resin impact absorption layer H) b (thickness 1Qinm And an annular abrasive grain layer 1〇c (having a thickness of 5 between the disk-shaped metal base 10a and the shock absorbing layer 1〇b) bonded to the outer peripheral surface of the impact absorbing layer i〇b Bonded by the adhesive, the impact absorbing layer lb and the abrasive layer i〇c are also joined by a heat-resistant adhesive. Moreover, the abrasive layer is made by grinding a large amount of diamonds ( For example, a mixture of a metal particle size (#6〇〇~1〇〇〇) and a metal crucible (adhesive material) is fired into an annular shape, and the abrasive grain layer 1()e is subjected to tool processing, Grinding, so that the outer surface thereof is formed into a large number (for example, 10 to 30) annular grooves 1 〇 d (the groove width is 1 〇 mm). Fig. 2 is a view showing the connection structure of the above-mentioned rotating grindstone 1 驱动 and the driving source. The month p. The honing stone 1 is coaxially coupled to the rotating shaft 11 via a hole formed in the center thereof, and the rotating shaft u is attached to the conveyor belt I. The upper conveyor belt 13 is coupled to the motor 14, and when the motor 14 is operated, the rotary shaft is rotationally driven, whereby the rotary grindstone 1 is rotated circumferentially. Then, the above-described rotating grindstone 1 〇 plate glass is used. Fig. 3 is a schematic perspective view showing the main part of the concept of the chamfering method of the sheet glass of the present invention. As shown in Fig. 3, the sheet glass G_ is carried by the belt type. A conveying mechanism (not shown) such as a conveyor moves at a fixed speed toward a side f (direction of the arrow in W) along the end surface, and press-fits the rotating grindstone that is engaged with both sides of the conveying path. 15,16. As the rough grinding grindstone 15 located on the upstream side in the conveying direction, a commonly used metal bond diamond grinding wheel can be used, and as the finishing 12 on the downstream side, the rotating mill of the present invention as described above is used. The direction of rotation of the above-described rotating grindstone 16 5 for the grinding grindstone 16 10 设为 is set to be opposite to the moving direction of the sheet glass g. Further, the deflection of the rotation axis of each of the rotating grindstones 15 and 16 may be 〇 45. Within the scope, it is usually appropriate to 〇~3〇. In the range around. The present invention is particularly preferable in the chamfering process of a thin-walled liquid crystal display panel glass. For example, when finishing the end surface of the sheet glass for a liquid crystal display having a size of 11 〇〇χΐ 25 〇χ〇 7 legs, the sheet glass G is conveyed at a speed of _ while the sheet glass is first g = rough The rotating grindstone 15 is ground, and the both end faces of the plate_G are roughly ground, and the plate glass G is sent to the rotary grindstone 16 for finishing grinding, and the two ends of the G are used for fine grinding. In addition, the setting is as follows: the straight south degree (width in the axial direction) of the grindstone 15 is 1G to 4Gmm, the grindstone is 6 〇〇, and the rotational speed is 1500 to 35 〇〇m/mm, and , = The diameter of the grinding grindstone 16 for grinding is _ energy production) such as 1nn ^ 仫 150 mm, height (axial direction width ^ 30~100mm, grindstone particle size #6〇〇 ~ degree 1800~2000 m /min. And R... Wan Hao I block the surface of the grinding stone surface. Finally, Qing Xin; spray water on the grinding part to prevent the household and the helmet amp & ^ and the heat is missing or damaged and has a uniform research. ==:, chamfering processing, no defect or damage occurs. Liquid crystal _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Therefore, the rotary grindstone of the present invention is suitable for a display surface for a display having a quality of ==\, and can be preferably used as a thin-walled and easy-to-break plate for a two-day day (four) glass substrate. Grinding grinding stone. Set [schematic description]
圖1是表示本發明的旋轉磨石的立體圖。 〜、圖2疋表示本發明的旋轉磨石與驅動源的連結構造 說明圖。 ° 的倒角加工方法的主要部 圖3是表示本發明的板玻璃 分概略立體圖。 【主要元件符號說明】 10 :旋轉磨石 10a:圓盤狀金屬底座 1Ga’ ：圓盤狀金屬底座的孔部 I 〇b :衝擊吸收層 i〇c:磨粒層 1Gd:環狀槽 II :旋轉軸 12 :傳送帶輪 13:傳送帶 14 :馬達 15:粗研削用旋轉磨石 14 200827100 25604pif 16 :精加工研削用旋轉磨石 G :板玻璃 15Fig. 1 is a perspective view showing a rotating grindstone of the present invention. Fig. 2A is a diagram showing the connection structure between the rotating grindstone and the drive source of the present invention. Main part of the chamfering processing method of Fig. 3 is a schematic perspective view showing the sheet glass of the present invention. [Description of main component symbols] 10: Rotating grindstone 10a: Disc-shaped metal base 1Ga': Hole portion of disc-shaped metal base I 〇b: Impact absorbing layer i〇c: Abrasive layer 1Gd: Annular groove II: Rotary shaft 12: Conveyor pulley 13: Conveyor belt 14: Motor 15: Rotary grinding stone for rough grinding 14 200827100 25604pif 16 : Rotary grinding stone for finishing grinding G: Plate glass 15