JPH0680552U - Whetstone for chamfering glass plate - Google Patents

Abstract

(57)【要約】 【目的】ガラス板の端縁を凸円弧状に研削仕上げする砥
石の改良に関する。 【構成】円盤状の金属台金の外周面にＶ／またはＵ字溝
状の砥材層を形成し中心に取付孔を設けたガラス板の面
取り用砥石において、前記金属台金の片面周縁に外周に
向かって下り勾配の砥材層を設けた本体部を、該金属台
金より小径なスペーサーの両面に前記砥材層が対向する
ように重合し螺着の一体構造とし、前記取付孔から前記
スペーサーの外周面に向かって冷却孔を放射状に穿設す
る。 (57) [Abstract] [Purpose] To improve a grindstone for grinding and finishing the edge of a glass plate into a convex arc shape. [Claim] A chamfering grindstone for a glass plate, in which a V / or U-shaped grooved abrasive layer is formed on the outer peripheral surface of a disk-shaped metal base metal, and a mounting hole is provided in the center thereof The main body portion provided with an abrasive layer having a downward slope toward the outer periphery is integrated and screwed so that the abrasive layers face each other on both surfaces of a spacer having a diameter smaller than that of the metal base metal. Cooling holes are radially formed toward the outer peripheral surface of the spacer.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、ガラス板の端縁を凸円弧状に研削仕上げする砥石に関し、詳細には その改良に係るものである。 The present invention relates to a grindstone for grinding and finishing an edge of a glass plate into a convex arc shape, and more particularly to an improvement thereof.

【０００２】[0002]

【従来の技術】[Prior art]

切断したガラス板の端面角部は、カッターホイールチップで切り傷を付与した 側は通称リブマークと呼ばれる微細な凹凸が発生し、該当部分および反対側を同 時に研削仕上げをする砥石として、例えば実開昭５８ー４０３５９号の公報のも のは、砥石厚みの中心付近を境として硬くて耐磨耗性の高い砥石を上部に、切れ 味のよい砥石を下部にして、凹弧形断面のダイヤモンド砥石層を形成し、これを 一体に焼結成形した板ガラス周縁研削用ダイヤモンド砥石が開示され、また実公 昭５６−１０５０９号の公報には、互いに近接して対向した上下一対の研磨デイ スクの外周部対向面を傾斜面に形成してこれらの傾斜面によりＶ字状の研磨溝を 形成し、上下研磨デイスクを同期回転させると共に水平方向に往復移動させるこ とにより板ガラスの端面角部に対する研磨溝を連続的に変化させるように構成し た板ガラス面取り用研磨装置が開示され、さらに実公昭５６−６２８２号公報に は、円盤状台金の外周面にダイヤモンド砥材層を形成した板ガラスの端縁研削用 ダイヤモンド砥石において、凹弧状研削面の中央部円周上に多数の空孔を放射状 に配列し設けた板ガラスの端縁研削用ダイヤモンド砥石、さらには実開昭５４− ６４３９０号公報には、砥石本体の金属台金を重ね合わせ可能に上下対称に形成 し、該金属台金の合わせ面の一方もしくは両面に、中心孔から放射状に複数個の 溝を形成すると共に、金属台金の外周部に、ダイヤモンド層の刃面を直線的傾斜 面を有して一体的にモールドし、上記金属台金を重ね合わせることによつて外周 部にＶ字状のダイヤモンド層の切削部を形成した組み合わせ砥石が開示されてい る。 On the edge of the cut glass plate, fine unevenness called a rib mark is generated on the side where the cut is made by the cutter wheel tip, and as a whetstone that simultaneously grinds the relevant part and the opposite side, for example 58-40359 discloses a diamond grindstone layer having a concave arc-shaped cross section, with a grindstone hard and having high abrasion resistance as the upper part and a sharp grindstone as the lower part, with the vicinity of the center of the grindstone thickness as the boundary. Is disclosed, and a diamond grindstone for grinding the periphery of a plate glass, which is integrally formed by sintering, is disclosed. In Japanese Utility Model Publication No. 56-10509, the outer peripheral portions of a pair of upper and lower polishing disks facing each other in close proximity are disclosed. The opposing surface is formed as an inclined surface, and these inclined surfaces form a V-shaped polishing groove, and the upper and lower polishing disks are synchronously rotated and reciprocally moved in the horizontal direction, so that the plate rattle is formed. Is disclosed a flat glass chamfering polishing device configured to continuously change a polishing groove with respect to a corner portion of an end face of the disk. Further, Japanese Utility Model Publication No. 56-6282 discloses a diamond abrasive material layer on the outer peripheral surface of a disk-shaped base metal. In the diamond grindstone for edge grinding of plate glass, the diamond grindstone for edge grinding of plate glass, in which a large number of holes are radially arranged on the circumference of the center of the concave arc-shaped grinding surface, is further provided. In Japanese Laid-Open Patent Publication No. 64390, a metal base metal of a grindstone main body is formed in a vertically symmetrical manner so that the metal base metal can be overlapped with each other, and a plurality of grooves are radially formed from a central hole on one or both mating surfaces of the metal base metal. The V-shaped diamond layer is formed on the outer peripheral portion by integrally molding the blade surface of the diamond layer on the outer peripheral portion of the metal base metal so as to have a linear inclined surface, and superposing the metal base metal on each other. Combinations grindstone forming the cutting portions that have been disclosed.

【０００３】[0003]

【考案が解決しようとする問題点】 リブマーク側となる上部に耐磨耗性の高い砥石を、切れ味のよい砥石を下部に して凹円弧状の砥石層を形成した実開昭５８ー４０３５９号の公報のものは、ガ ラス板の厚み毎に適応する砥石が必要となる経済的な不利に加え、高速回転を行 うと冷却効果が低下し、焼きつきのトラブルが発生する等の欠点があり、後者の 実公昭５６−１０５０９号の公報のものは、上下に分割した研磨デイスクを別駆 動可能とし、かつスライドも可能なため同一箇所の磨滅の防止、異なった厚みの ガラス板に適用可能としているが、構造が複雑なため設備化が難しく、冷却効果 も従来と同様もしくはそれ以下となり、冷却を目的とした実公昭５６−６２８２ 号の公報のものは、空冷のため冷却効果が悪く、高速回転においては焼きつきを 起こし、実開昭５４−６４３９０号公報のものは、水冷用の溝を放射状に設けた 金属台金を重ね合わすため溝加工の複雑さを有し、切削部を設けた金属台金の一 方のみ取り替えることにダイヤモンド層の延命を図っているが、被研削のガラス 板厚みによっては金属台金を取り替えを要する等の欠点があった。[Problems to be solved by the invention] Actually developed No. 58-40359, in which a grindstone with high abrasion resistance is formed on the upper part on the rib mark side, and a sharp grindstone is formed on the lower part to form a concave arc-shaped grindstone layer. In addition to the economical disadvantage of requiring a grindstone adapted to each thickness of the glass plate, there is a drawback that the cooling effect deteriorates at high speed rotation and seizure troubles occur. The latter Japanese Utility Model Publication No. 56-10509 makes it possible to separately drive the upper and lower divided polishing disks, and since it can slide, it is possible to prevent abrasion of the same place and apply it to glass plates of different thickness. However, since the structure is complicated, it is difficult to install the equipment, and the cooling effect is the same as or less than the conventional one. In rotation In Japanese Utility Model Laid-Open No. 54-64390, a metal base metal having radial grooves for water cooling is superposed on the metal base metal. Although the life of the diamond layer is extended by replacing only one of the base metals, there is a drawback that the metal base metal needs to be replaced depending on the thickness of the glass plate to be ground.

【０００４】[0004]

【問題点を解決するための手段】[Means for solving problems]

本考案は、上記問題を解消することを目的として、円盤状の金属台金の外周面 にＶ／またはＵ字溝状の砥材層を形成し中心に取付孔を設けたガラス板の面取り 用砥石において、前記金属台金に砥材層を傾斜せしめた一対の本体部を、該金属 台金より小径なスペーサーの両面に重合螺着の一体構造とし、好ましくは前記取 付孔から前記スペーサーの外周面に向かって冷却孔を放射状に穿設したガラス板 の面取り用砥石、また、円盤状の金属台金の外周面にＶ／またはＵ字溝状の砥材 層を形成し、該砥材層に研削液を注ぐガラス板の面取り用砥石において、前記金 属台金の裏面に凹状に削成する円環状の冷却溝に、前記砥材層の中央部に穿設す る複数の冷却孔と、前記金属台金の表面より穿設する複数の注入孔とを連通せし め、前記冷却溝を封止する蓋状台金を前記金属台金と螺着一体とし、好ましくは 前記金属台金面の表面に穿設する前記注入孔の外方に堰部を設けたガラス板の面 取り用砥石を提供する。 The present invention, for the purpose of solving the above problems, for chamfering a glass plate in which a V / or U-shaped groove-shaped abrasive layer is formed on the outer peripheral surface of a disk-shaped metal base metal and a mounting hole is provided in the center thereof. In the grindstone, a pair of main body parts in which an abrasive layer is tilted on the metal base metal is integrated with both sides of a spacer having a smaller diameter than the metal base metal by superposition screwing, preferably from the mounting hole to the spacer. A chamfering grindstone for a glass plate having cooling holes radially formed toward the outer peripheral surface, or a V / or U-shaped groove-shaped abrasive material layer formed on the outer peripheral surface of a disk-shaped metal base metal. In a grinding stone for chamfering a glass plate in which a grinding liquid is poured into a layer, a plurality of cooling holes are formed in the center part of the abrasive layer in an annular cooling groove that is cut in a concave shape on the back surface of the metal base metal. And the plurality of injection holes formed from the surface of the metal base are communicated with each other, so that the cooling groove A grinding stone for chamfering a glass plate, in which a lid-like base metal for sealing is screwed integrally with the metal base metal, and preferably a weir portion is provided outside the injection hole formed on the surface of the metal base metal surface. I will provide a.

【０００５】[0005]

【作用】 本体部に厚みの変わったスペーサーとの組み替えにより、種々の板厚ガラスに 適用することができ、研削により変形の過大な砥材層側の本体部のみを取り替え ることも可能とし、さらにスペーサーの外周面に取付孔より貫通の冷却孔を放射 状に設け、あるいは注入孔から冷却溝を介して供給する研削液を砥材層から噴射 せしめることにより砥材層の延命を図る。[Operation] By changing the body part to a spacer with a different thickness, it can be applied to various glass plates, and it is also possible to replace only the body part on the side of the abrasive layer that is excessively deformed by grinding. Furthermore, cooling holes penetrating from the mounting holes are radially provided on the outer peripheral surface of the spacer, or the grinding liquid supplied from the injection hole through the cooling groove is ejected from the abrasive layer to prolong the life of the abrasive layer.

【０００６】[0006]

【実施例】【Example】

以下、本考案に係わる砥石を図面に基づき詳細に説明する。 図１は一部を省略した分解の砥石斜視図を示し、図２は図１の組立て側面図、 図３は他の砥石を示す組立断面図で図４のＡ−Ａ視を示し、図４は図３の平面図 を示す。 Hereinafter, a grindstone according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a disassembled grindstone with a part omitted, FIG. 2 is a side view of the assembly of FIG. 1, and FIG. 3 is an assembled sectional view showing another grindstone as viewed from AA of FIG. Shows a plan view of FIG.

【０００７】 円盤状の外周面に例えばＶ字溝状の砥材層を設けたガラス板の面取り用砥石３ は、円環状のスペーサー４を挟み金属台金１の片面側に砥材層２を設けた一対の 本体部５、５’を重合螺着して一体とするが、該本体部は中心に図示されない回 転軸と取り付ける穿設の取付孔６とその周りに複数のネジ孔７を設けた金属台金 １の片面側周縁に、外周に向けて勾配の傾斜面に仕上げた例えばダイヤモンド層 からなる砥材層２を設け、一方のスペーサー４は前記砥材層２の傾斜起点円より やや小さな外周を備えた金属製の円板で、該板には前記金属台金の取付孔６とネ ジ孔７とに重合する取付孔６’とネジ孔７’と、その取付孔６’から放射状に外 周端面まで貫通する冷却孔８とを設け、スペーサー４を挟み取付孔６、６’とネ ジ孔７、７’を重合し、該ネジ孔にネジ９を螺合して緊締すれば図示されない回 転軸から研削液を供給可能となる砥石３となり、厚みの異なるスペーサー４を各 種用意して取り替えれば、被研削物の厚みに対応することができる。A chamfering grindstone 3 for a glass plate having a disk-shaped outer peripheral surface provided with, for example, a V-shaped groove-shaped abrasive material layer has an annular spacer 4 between which an abrasive material layer 2 is provided on one side of a metal base metal 1. The pair of main bodies 5, 5'provided are integrated by superposing and screwing together, and the main body has a mounting shaft 6 and a plurality of screw holes 7 around the rotary shaft (not shown) for mounting. An abrasive material layer 2 made of, for example, a diamond layer, which is finished as an inclined surface with a gradient toward the outer periphery, is provided on the peripheral edge of one side of the provided metal base metal 1. One spacer 4 is formed from the inclination origin circle of the abrasive material layer 2. A metal disc having a slightly small outer circumference, in which the mounting hole 6'and the screw hole 7'that overlap the mounting hole 6 and the screw hole 7 of the metal base metal and the mounting hole 6 ' A cooling hole 8 that radially penetrates from the outer peripheral end surface to the mounting hole 6, 6 ′ with a spacer 4 and a screw hole 7, Polymerizing ', next to the grinding wheel 3 the grinding liquid can be supplied from the screwed by rotating shaft (not shown) if tightening the screws 9 in the threaded hole, if Torikaere different spacer 4 thicknesses are prepared each species It is possible to cope with the thickness of the object to be ground.

【０００８】 図３、４に示す砥石１０は、中心に取付孔１１とその周りにネジ孔１２とを穿 設し、その外周面には例えばＵ字溝状の砥材層１３を設け、図示されない回転軸 に取り付けて下面側となる裏面には凹状円環状に削成した冷却溝１４を配設し、 該冷却溝からは前記砥材層１３の外面に向かって放射状に貫通穿孔の冷却孔１５ と、表面と貫通する複数の注入孔１６とを配設して、該注入孔と冷却孔１５とを 冷却溝１４に連通せしめた金属台金１７に、該冷却溝の開口側を封止する蓋状台 金１８をネジ孔１２にネジ１９を螺合緊締して一体とするが、該蓋状台金は図３ に示すように砥材層１３の片側を保護するように金属台金１７の外周と同径にし てもよく、該金属台金の外周を凹状な溝を設け、該溝にＵ字状の砥材層１３を形 成し、前記蓋状台金１８は冷却溝１４のみを封止するようにしてもよく、さらに 金属台金１７の表面には注入孔１６より外方位置で突出する環状の堰部２０を設 けてもよく、前記注入孔１６は冷却溝１４に対して斜めで放射状に穿孔するのが 望ましい。The grindstone 10 shown in FIGS. 3 and 4 has a mounting hole 11 formed in the center and a screw hole 12 around the mounting hole 11, and a U-shaped groove-like abrasive layer 13 provided on the outer peripheral surface thereof. A cooling groove 14 formed in a concave annular shape is provided on the back surface which is the lower surface side when attached to a rotating shaft which is not formed. From the cooling groove, cooling holes which are penetrating holes radially toward the outer surface of the abrasive layer 13 are provided. 15 and a plurality of injection holes 16 penetrating the surface thereof are provided, and the opening side of the cooling groove is sealed by a metal base metal 17 in which the injection hole and the cooling hole 15 are connected to the cooling groove 14. The lid-shaped base metal 18 is screwed into the screw hole 12 and tightened with a screw 19 so as to be integrated. The lid-shaped base metal is a metal base metal so as to protect one side of the abrasive layer 13 as shown in FIG. The outer circumference of the metal base metal 17 may have the same diameter, and a concave groove is provided on the outer circumference of the metal base metal to form a U-shaped abrasive layer 13 in the groove. However, the lid-shaped base metal 18 may seal only the cooling groove 14, and the surface of the metal base metal 17 may be provided with an annular weir portion 20 projecting at a position outside the injection hole 16. Alternatively, the injection holes 16 are preferably formed obliquely and radially with respect to the cooling groove 14.

【０００９】 以下、本考案の作用を説明する。 本体部５、５’スペーサー４と螺着一体の砥石３を図示されない中空な回転軸 に取り付け、該回転軸の中空を経由して研削液を注入する給水機構を備えて回転 する砥石３は、取付孔６、６’内の研削液が冷却孔８を通り砥材層２側から被研 削物であるガラス板の端縁に直接噴射し、潤滑、冷却を高めて焼きつきを防止し 、研削速度を高めかつ砥石３の寿命を延ばすが、本体部５、５’とスペーサー４ との螺合による砥石３は、一方の砥材層２の磨耗量が大幅に増加した場合には、 変形量の大きい本体部のみをネジ９の緩締により取り替えも可能となり、本体部 ５、５’の一方を研削集中度の高めた砥材層２にした組み合わせもでき、さらに は厚みを変えたスペーサー４を用意すれば、種々のガラス板に適用ができ、該ス ペーサーは半永久のものである。The operation of the present invention will be described below. The grindstone 3 which is integrally screwed with the main body 5, 5 ′ spacer 4 is attached to a hollow rotary shaft (not shown), and the grindstone 3 which is rotated by a water supply mechanism for injecting a grinding fluid through the hollow of the rotary shaft is The grinding liquid in the mounting holes 6 and 6'is sprayed directly from the abrasive layer 2 side to the edge of the glass plate as the work piece through the cooling hole 8 to enhance lubrication and cooling to prevent seizure. Although the grinding speed is increased and the life of the grindstone 3 is extended, the grindstone 3 due to the screwing of the body portions 5 and 5 ′ and the spacer 4 is deformed when the abrasion amount of one abrasive material layer 2 is significantly increased. Only the main body with a large amount can be replaced by loosely tightening the screws 9, and one of the main bodies 5 and 5'can be combined with the abrasive layer 2 having a high degree of concentration of grinding, and a spacer with a different thickness can be used. If 4 is prepared, it can be applied to various glass plates, and the spacer is semipermanent. Of.

【００１０】 つぎに、図３、４に示す砥石１０においては、その外部上面に研削液を放水状 に供給し、該研削液は砥石１０の回転による遠心力で円周方向に飛散するが、堰 部２０に遮られて該堰部内に研削液が溜まり、該研削液は注入孔１６から冷却溝 １４、該冷却溝に溜まった液は砥材層１３の中央に設けた冷却孔１５から遠心力 により研削中の被研削物、すなわちガラス板端面に向けて飛散し、冷却と潤滑効 果を果たすもので、回転軸からの給水機構を省略した簡易な構成となる。Next, in the grindstone 10 shown in FIGS. 3 and 4, the grinding liquid is supplied to the outer upper surface in a water-spraying state, and the grinding liquid is scattered in the circumferential direction by the centrifugal force generated by the rotation of the grindstone 10 . The grinding liquid is blocked by the dam 20 and accumulates in the dam. The grinding liquid is injected from the injection hole 16 into the cooling groove 14, and the liquid collected in the cooling groove is centrifuged from the cooling hole 15 provided in the center of the abrasive layer 13. It is scattered by the force toward the object being ground, that is, the edge of the glass plate, and has the effect of cooling and lubrication. It has a simple structure without the water supply mechanism from the rotating shaft.

【００１１】[0011]

【考案の効果】[Effect of device]

本考案は、砥材層の中央部あるいはスペーサーの中央から研削液を噴射して冷 却および潤滑効果を高めて、高速研削により発生する焼けを防ぎ、砥材層の磨耗 も減少して延命となり、該砥材層の磨耗による変形もスペーサーを挟む構成のも のは、変形量の大きい砥材層の本体部のみ取り替えることも可能で、被研削物の 板厚に対応する砥石は厚みが異なるスペーサーを取り替えればよく、冷却溝を設 けた砥石においては、冷却溝に研削液が溜まり冷却孔より遠心噴射する研削液の 供給が確実となり、給水機構を省略した簡易な機構となる。 The present invention sprays the grinding fluid from the center of the abrasive layer or the center of the spacer to enhance the cooling and lubrication effects, prevent burns caused by high-speed grinding, and reduce the wear of the abrasive layer to prolong life. With the structure in which the abrasive material layer is deformed by abrasion and the spacer is sandwiched, it is possible to replace only the main body part of the abrasive material layer with a large amount of deformation, and the thickness of the grindstone corresponding to the plate thickness of the work piece is different. It suffices to replace the spacer, and in a grindstone with a cooling groove, the grinding fluid accumulates in the cooling groove and the supply of the grinding fluid to be centrifugally injected from the cooling hole is ensured, and the water supply mechanism is omitted.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案の実施例を説明する一部を省略の分解し
た砥石斜視図を示す。FIG. 1 is a perspective view of an exploded grindstone with a part omitted for explaining an embodiment of the present invention.

【図２】図１の組立て側面図を示す。2 shows an assembled side view of FIG.

【図３】他の砥石を示す組立断面図で図４のＡ−Ａ視を
示す。FIG. 3 is an assembly sectional view showing another grindstone as viewed from AA in FIG.

【図４】図３の砥石平面図を示す。FIG. 4 shows a plan view of the grindstone of FIG.

【符号の説明】[Explanation of symbols]

１、１７・・・・金属台金 ２、１３・・・・砥材層３ 、１０・・・・砥石 ４・・・・・・・スペーサー ６、１１・・・・取付孔 ８、１５・・・・冷却孔 １４・・・・・・・冷却溝 １６・・・・・・・注入孔 １８・・・・・・・蓋状台金 ２０・・・・・・・堰部1, 17 ... Metal base metal 2, 13 ... Abrasive material layer 3 , 10 ... Grinding stone 4 ... Spacer 6, 11 ... Attachment hole 8, 15 ... Cooling hole 14 ... Cooling groove 16 ... Injection hole 18 ... Lid base 20 ... Weir

Claims (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】円盤状の金属台金の外周面にＶ／またはＵ
字溝状の砥材層を形成し中心に取付孔を設けたガラス板
の面取り用砥石において、前記金属台金の片面周縁に外
周に向かって下り勾配の砥材層を設けた一対の本体部
を、該金属台金より小径なスペーサーの両面に前記砥材
層が対向するように重合し螺着の一体構造としたことを
特徴とするガラス板の面取り用砥石。1. V / or U on the outer peripheral surface of a disk-shaped metal base metal.
In a chamfering grindstone for a glass plate having a groove-shaped abrasive material layer and a mounting hole provided in the center, a pair of main body parts provided with an abrasive material layer having a downward slope toward the outer periphery on the peripheral edge of one side of the metal base metal A chamfering grindstone for a glass plate, characterized in that a spacer having a diameter smaller than that of the metal base is superposed on the both surfaces of the abrasive material layer so as to face each other and screwed into an integral structure. 【請求項２】前記取付孔から前記スペーサーの外周面に
向かって冷却孔を放射状に穿設した請求項１記載のガラ
ス板の面取り用砥石。2. The grinding stone for chamfering a glass plate according to claim 1, wherein cooling holes are radially provided from the mounting hole toward the outer peripheral surface of the spacer. 【請求項３】円盤状の金属台金の外周面にＶ／またはＵ
字溝状の砥材層を形成し、該砥材層に研削液を注ぐガラ
ス板の面取り用砥石において、前記金属台金の裏面に凹
状に削成する円環状の冷却溝に、前記砥材層の中央部に
穿設する複数の冷却孔と、前記金属台金の表面より穿設
する複数の注入孔とを連通せしめ、前記冷却溝を封止す
る蓋状台金を前記金属台金と螺着一体としたことを特徴
とするガラス板の面取り用砥石。3. V / or U on the outer peripheral surface of a disk-shaped metal base metal.
In a grindstone for chamfering a glass plate in which a groove-shaped abrasive material layer is formed and pouring a grinding liquid into the abrasive material layer, the abrasive material is formed in an annular cooling groove formed in a concave shape on the back surface of the metal base metal. A plurality of cooling holes bored in the central portion of the layer and a plurality of injection holes bored from the surface of the metal base metal are communicated with each other, and a lid-shaped base metal for sealing the cooling groove is connected to the metal base metal. A grindstone for chamfering glass plates, which is integrated with screws. 【請求項４】前記金属台金面の表面に穿設する前記注入
孔の外方に堰部を設けた請求項３記載のガラス板の面取
り用砥石。4. The grinding stone for chamfering a glass plate according to claim 3, wherein a weir is provided outside the injection hole formed on the surface of the metal base metal surface.