JP5154880B2 - Hard brittle plate chamfering device with dressing device - Google Patents

Hard brittle plate chamfering device with dressing device Download PDF

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JP5154880B2
JP5154880B2 JP2007260135A JP2007260135A JP5154880B2 JP 5154880 B2 JP5154880 B2 JP 5154880B2 JP 2007260135 A JP2007260135 A JP 2007260135A JP 2007260135 A JP2007260135 A JP 2007260135A JP 5154880 B2 JP5154880 B2 JP 5154880B2
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grindstone
dressing
advancing
feed direction
hard brittle
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JP2009090379A (en
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敦史 中田
宣隆 前
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Nakamura Tome Precision Industry Co Ltd
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Description

この発明は、液晶用ガラス基板などの硬質脆性板周縁の鋭いエッジを面取する装置に関するもので、マルチ砥石、すなわち回転する砥石軸に複数の円板状の砥石板が固定されている砥石を備えた面取装置における当該砥石のドレス（目立て）手段に特徴がある上記装置に関するものである。   The present invention relates to an apparatus for chamfering a sharp edge of a peripheral edge of a hard brittle plate such as a glass substrate for liquid crystal, and a multi-grinding wheel, that is, a grindstone in which a plurality of disc-shaped grindstone plates are fixed to a rotating grindstone shaft. The present invention relates to the above apparatus characterized by dressing means (sharpening) of the grindstone in the chamfering apparatus provided.

ディスプレイ用の液晶パネルなどに用いるガラス基板は、割断ないし切断時に生じた周縁の鋭いエッジを面取（成形）する必要がある。この面取は、図６に示すように、テーブル１１、１２上に負圧などで固定したガラス基板４の幅寸法ｗ（砥石２に対するテーブルの相対移動方向Ｚと直交するＸ方向の寸法）に対応する間隔を隔てて配置した左右の回転砥石２の間にガラス基板４を通過させることによって行われる。ガラス基板４は、一般的には矩形であるから、１回の通過でガラス基板の対向する２つの辺４１、４１の面取加工が行われる。そこで一方の対向辺４１、４１の面取加工が終了した後、ガラス基板４を９０度旋回し、砥石２の間隔を旋回後のガラス基板の幅寸法に応じた位置に移動した後、再度砥石２の間を通過させることにより、４辺の面取りが行われる。   A glass substrate used for a liquid crystal panel for display or the like needs to be chamfered (molded) at a sharp edge of a peripheral edge generated during cleaving or cutting. As shown in FIG. 6, this chamfering is performed on the width w of the glass substrate 4 fixed on the tables 11 and 12 by negative pressure or the like (dimension in the X direction orthogonal to the relative movement direction Z of the table with respect to the grindstone 2). It is performed by passing the glass substrate 4 between the left and right rotating grindstones 2 arranged at a corresponding interval. Since the glass substrate 4 is generally rectangular, the chamfering of the two opposite sides 41 and 41 of the glass substrate is performed in one pass. Therefore, after the chamfering of one of the opposing sides 41, 41 is completed, the glass substrate 4 is turned 90 degrees, the interval between the grindstones 2 is moved to a position corresponding to the width dimension of the glass substrate after the turning, and then the grindstone is again formed. By passing between the two, four sides are chamfered.

この面取加工を行う砥石として、図３に示すように、ガラス基板の相対送り方向Ｚと略平行に配置した上下の回転砥石軸２１ａ、２１ｂにそれぞれ複数個の円板状の砥石板２２ａ、２２ｂを固定し、上下の砥石板２２ａ、２２ｂを互い違いに相手側の砥石板の間に入り込ませた構造の砥石（本願明細書で「マルチ砥石」と言う。）が用いられている。マルチ砥石２は、上下の砥石板２２ａ、２２ｂの周縁がガラス基板４の縁の上下のエッジ４１ａ、４１ｂに同時に接触するように位置設定することにより、上下のエッジ４１ａ、４１ｂを同時に面取りすることができる。   As shown in FIG. 3, as the grindstone for performing this chamfering process, a plurality of disc-shaped grindstone plates 22 a, respectively, are arranged on the upper and lower rotary grindstone shafts 21 a and 21 b disposed substantially parallel to the relative feed direction Z of the glass substrate. A grindstone having a structure in which the upper and lower grindstone plates 22a and 22b are alternately inserted between the mating grindstone plates (referred to as "multi grindstone" in the present specification) is used. The multi-grinding wheel 2 chamfers the upper and lower edges 41a and 41b at the same time by setting the positions so that the peripheral edges of the upper and lower grinding wheel plates 22a and 22b are simultaneously in contact with the upper and lower edges 41a and 41b of the edge of the glass substrate 4. Can do.

砥石は、ある程度の量の加工を行うと、目詰まりして切れ味が低下する。そこで、砥粒の粒度やガラス基板の材質によって定めた所定量の加工を行うごとに、砥石のドレスを行わなければならない。砥石のドレスは、ドレス用の砥石を面取用の砥石に押し付けることによって行われる。
特開平６−５５４３９号公報 When a certain amount of processing is performed on the grindstone, the grindstone is clogged and the sharpness is lowered. Therefore, every time a predetermined amount of processing determined by the grain size of the abrasive grains or the material of the glass substrate is performed, the grindstone must be dressed. The grindstone is dressed by pressing the dressing grindstone against the chamfering grindstone.
JP-A-6-55439

従来、硬質脆性板の面取装置におけるマルチ砥石のドレス作業は、所定量のガラス基板の面取加工が行われるごとに装置を停止し、装置に予め設けておいたドレス砥石台に人手でドレス砥石を固定し、オペレータがマルチ砥石を当該ドレス砥石に向けて移動させることによって行われていた。ドレス砥石はマルチ砥石２の移動領域（高さ方向及びガラス基板の幅方向）内に設置されるので、装置にドレス砥石を取り付けたままにしておくと、面取加工時にマルチ砥石２とドレス砥石が干渉するなど面取作業の邪魔になるので、ドレス動作のたびにドレス砥石の取り付け、取り外し作業が必要であった。   Conventionally, the dressing work of the multi-grinding stone in the chamfering device of the hard brittle plate is stopped every time a predetermined amount of the glass substrate is chamfered, and the dressing stone table provided in the device is manually dressed manually. The grindstone is fixed, and the operator moves the multi grindstone toward the dress grindstone. Since the dress grindstone is installed in the moving area (the height direction and the width direction of the glass substrate) of the multi grindstone 2, if the dress grindstone is left attached to the apparatus, the multi grindstone 2 and the dress grindstone will be used during chamfering. Since it interferes with chamfering work such as interference, it is necessary to attach and detach the dressing grindstone every time the dressing operation is performed.

この発明は、従来人手により行われていた硬質脆性板の面取装置におけるマルチ砥石のドレス作業を自動で、かつドレス砥石を無駄にすることなく行うことができる技術手段を提供することを課題としている。   It is an object of the present invention to provide a technical means capable of automatically performing a dressing operation of a multi-grinding stone in a chamfering device for a hard brittle plate, which has been performed manually by the human hand, without wasting the dressing stone. Yes.

この発明の硬質脆性板の面取装置は、面取装置のテーブル１の基台３（テーブルが加工送り方向に移動してマルチ砥石２との相対移動を行う装置においては、テーブル１と共に移動する基台）に、テーブル１の加工送り方向と直交するＸ方向（加工される硬質脆性板の幅方向）の両側に向けて進退する進退端を備えた進退装置６５を設け、当該進退装置の両側の進退端に、ドレス砥石６を固定する砥石ホルダ６１を設けている。砥石ホルダ６１は、テーブル１の幅方向中心に対称に両側のものが同期して進退するように配置し、進出時に砥石ホルダ６１に固定されたドレス砥石６をマルチ砥石２の移動領域内に進出させ、かつ縮退時にドレス砥石６を当該移動領域から退避させる位置及びストロークで設ける。   The chamfering device for a hard brittle plate according to the present invention moves together with the table 1 in the base 3 of the table 1 of the chamfering device (in the device in which the table moves in the processing feed direction and moves relative to the multi-grinding stone 2). The base is provided with an advancing / retracting device 65 having an advancing / retracting end that advances / retreats toward both sides in the X direction (width direction of the hard brittle plate to be processed) orthogonal to the processing feed direction of the table 1, A grindstone holder 61 for fixing the dress grindstone 6 is provided at the forward and backward ends. The grindstone holder 61 is arranged symmetrically with respect to the center in the width direction of the table 1 so that both sides of the grindstone advance and retreat in synchronization, and the dress grindstone 6 fixed to the grindstone holder 61 at the time of advancement advances into the moving region of the multi grindstone 2. In addition, the dressing grindstone 6 is provided at a position and a stroke at which the dressing grindstone 6 is retracted from the moving area when the contraction occurs.

テーブル１の相対送り位置を制御している制御器には、ドレス砥石６の一辺を用いて行うドレス動作の回数を設定する設定器と、１回目のドレスを行うときのテーブル位置を設定する初期位置設定器と、ドレス動作１回ごとにテーブル位置をずらす量を設定する移動量設定器とを設ける。一方、マルチ砥石２の高さ及びテーブル幅方向の位置を制御している制御器には、ドレス動作の開始位置と終了位置及び動作態様を設定する設定器を設ける。動作態様の設定器には、ドレス時の砥石送り速度、間歇送りをするときは一間歇送りごとのストロークと間歇送り間の休止時間又は後退ストロークなどを設定する。   The controller that controls the relative feed position of the table 1 includes a setter that sets the number of dressing operations performed using one side of the dressing grindstone 6 and an initial setting that sets the table position when performing the first dressing. A position setting device and a movement amount setting device for setting an amount of shifting the table position for each dressing operation are provided. On the other hand, the controller that controls the height of the multi-grinding wheel 2 and the position in the table width direction is provided with a setting device for setting the start and end positions of the dressing operation and the operation mode. In the setting device of the operation mode, the grindstone feed speed at the time of dressing, and when performing intermittent feed, the stroke for each intermittent feed and the pause time or reverse stroke between intermittent feeds are set.

ドレス動作は、テーブル１とマルチ砥石２とのテーブル送り方向の相対位置を、ドレス動作１回ごとに設定された移動量だけずらして行われる。ドレス砥石を付け替えてからのドレス回数が設定された回数に達したら、ドレス砥石を付け替え、ドレス時のテーブル１とマルチ砥石２とのテーブル送り方向の相対位置を、設定された初期位置に戻す。   The dressing operation is performed by shifting the relative position in the table feed direction between the table 1 and the multi-grinding stone 2 by the amount of movement set for each dressing operation. When the number of times of dressing after changing the dressing whetstone reaches the set number of times, the dressing whetstone is changed, and the relative position of the table 1 and the multi whetstone 2 at the time of dressing in the table feed direction is returned to the set initial position.

この出願の請求項１の発明に係る硬質脆性板の面取装置は、硬質脆性板を保持するテーブル１と、このテーブルの加工送り方向と直交するテーブル幅方向両側に配置されて高さ及びテーブル幅方向の位置をＮＣ制御されている回転砥石２と、前記テーブルを搭載して前記回転砥石に対して加工送り方向に相対移動する基台３と、当該加工送り方向の位置を制御している制御器とを備え、前記回転砥石が前記加工送り方向の砥石軸に固定された円板状の砥石板２２を備えている硬質脆性板の面取加工装置において、前記基台３に、その加工送り方向と直交する両方向に向けて進退する進退端６３を備えた進退装置６５が装着され、当該進退装置の両側の進退端に矩形のドレス砥石６を固定する砥石ホルダ６１が設けられており、当該砥石ホルダ６１は、進出時に砥石ホルダ６１に固定されたドレス砥石６を前記回転砥石２の移動領域内に進出させ、かつ縮退時にドレス砥石６を当該移動領域から退避させる位置及びストロークで設けられている。 A chamfering device for a hard brittle plate according to the invention of claim 1 of the present application includes a table 1 for holding a hard brittle plate, and a height and a table arranged on both sides in the table width direction orthogonal to the processing feed direction of the table. A rotary grindstone 2 whose position in the width direction is NC-controlled, a base 3 that is mounted with the table and moves relative to the rotary grindstone in the machining feed direction, and controls the position in the machining feed direction. A hard brittle plate chamfering apparatus comprising a disk-shaped grindstone plate 22 that includes a controller and the rotary grindstone is fixed to the grindstone shaft in the machining feed direction. Advancing / retracting device 65 having an advancing / retreating end 63 that advances / retreats in both directions orthogonal to the feeding direction is mounted, and a grindstone holder 61 for fixing the rectangular dress grindstone 6 to the advancing / retreating ends on both sides of the advancing / retreating device is provided. The grinding wheel holder 1, a dressing grinding stone 6 which is fixed to the grindstone holder 61 during advancing are advanced to said rotating grinding wheel 2 movement area, and a dressing grinding stone 6 during degeneracy that provided at a position and the stroke is retracted from the moving region.

更に、この出願の請求項１の発明に係る硬質脆性板の面取装置における前記制御器は、ドレス砥石６の一辺を用いて行うドレス動作の回数を設定する設定器と、ドレス動作を行うときの基台３と回転砥石２の加工送り方向の相対位置の初期位置とドレス動作１回ごとに当該相対位置をずらす量とを設定する設定手段を備えている。 Furthermore, the controller in the chamfering device for a hard brittle plate according to the invention of claim 1 of the present application includes a setter for setting the number of dressing operations performed using one side of the dressing grindstone 6 and a dressing operation. that comprise a setting means for setting a base 3 between the initial position of the processing-feed direction of the relative position of the grinding wheel 2 and the shift amount of the relative position for each dress operation once.

マルチ砥石２は、その周縁で面取加工を行うので、そのドレスは上下の砥石板２２ａ、２２ｂの中間位置（ガラス基板が接触する位置）に矩形板状のドレス砥石６の一辺６６を押し付けることによって行われる（図４）。面取装置のマルチ砥石２は、ガラス基板の幅方向の位置（Ｘ座標）及び高さ位置（Ｙ座標）をＮＣ装置で正確に制御されているので、マルチ砥石２の移動範囲内の位置にドレス砥石６を進出すれば、当該ドレス砥石が上下の砥石板２２ａ、２２ｂの中間の高さとなる高さにマルチ砥石２を移動した後、砥石板２２ａ、２２ｂの周縁をドレス砥石６に押し付ける方向にマルチ砥石２を移動させることにより、そのドレスを行うことができる。   Since the multi-grinding stone 2 is chamfered at its periphery, the dress is pressed by pressing one side 66 of the rectangular plate-shaped dressing grindstone 6 to an intermediate position between the upper and lower grindstone plates 22a and 22b (position where the glass substrate contacts). (FIG. 4). Since the multi-grinding wheel 2 of the chamfering device is accurately controlled by the NC device in the width direction position (X coordinate) and height position (Y coordinate) of the glass substrate, the multi-grinding stone 2 is positioned within the moving range of the multi-grinding wheel 2. If the dress grindstone 6 is advanced, the multi-grinding stone 2 is moved to a height that is intermediate between the upper and lower grindstone plates 22a and 22b, and then the periphery of the grindstone plates 22a and 22b is pressed against the dress grindstone 6. The multi-grinding stone 2 can be moved to move the dress.

しかし、ドレス砥石６は、面取用の砥石（マルチ砥石）より柔らかいため、ドレス作業を行うとドレス砥石の辺６６が図５に示すように櫛歯状に磨耗する。すなわち、マルチ砥石２の砥石板２２ａ、２２ｂが当った箇所が削り取られて複数の凹部６７ができる。この磨耗したドレス砥石を用いて次回のドレス加工を行うと、ドレス時のマルチ砥石２の送り込み量の設定が面倒になる問題や、ドレス砥石６が部分的にしか使用されないので不経済であるなどの問題が生じる。   However, since the dressing grindstone 6 is softer than the chamfering grindstone (multi grindstone), when the dressing operation is performed, the side 66 of the dressing grindstone is worn like a comb tooth as shown in FIG. That is, the portions of the multi-grinding stone 2 that are hit by the grindstone plates 22 a and 22 b are scraped off to form a plurality of recesses 67. When the next dressing is performed using the worn dressing grindstone, the setting of the feed amount of the multi grindstone 2 at the time of dressing becomes troublesome, and the dress grindstone 6 is only partially used, which is uneconomical. Problem arises.

この発明の方法では、ドレス作業を行ったときに、テーブル１とマルチ砥石２との相対位置関係を記憶し、次のドレスを行うときは、砥石板２２の厚さプラス余裕分だけドレス砥石６とマルチ砥石２とのテーブル送り方向相対位置関係をずらして行うので、ドレス砥石の辺６６の凹部６７ができていない部分で次回のドレス作業を行うことができる。ドレス動作１回ごとにずらす量２３は、マルチ砥石の長さに相当する量である。そしてこの整数回のドレス動作が行われたら、次回のドレス動作時にマルチ砥石２を付け替えるか又はドレス砥石６を９０度又は１８０度回して磨耗していない辺をマルチ砥石２に対向させ、次の上記整数回のドレス動作に対応させる。   In the method of the present invention, when the dressing operation is performed, the relative positional relationship between the table 1 and the multi-grinding stone 2 is stored, and when the next dressing is performed, the dressing wheel 6 is thicker than the grinding wheel plate 22 plus a margin. And the multi-grinding wheel 2 are shifted in the table feed direction relative positional relationship, so that the next dressing operation can be performed at the portion of the dressing wheel side 66 where the recess 67 is not formed. The amount 23 shifted for each dressing operation is an amount corresponding to the length of the multi-grinding stone. When this integer number of dressing operations are performed, the multi-grinding stone 2 is replaced at the next dressing operation or the dressing grindstone 6 is turned 90 degrees or 180 degrees so that the non-wearing side faces the multi-grinding stone 2 and the next It corresponds to the above-mentioned integer number of dressing operations.

この発明では、上記動作により、面取装置のマルチ砥石を所定の時間間隔又は所定量の加工を行うごとに自動的にドレスすることができ、またその制御が面取装置が本来有している機能を利用して行われるので、簡単な装置で自動ドレスを実現できる。   According to the present invention, the multi-grindstone of the chamfering device can be automatically dressed every time a predetermined time interval or a predetermined amount of machining is performed by the above-described operation, and the chamfering device originally has the control. Since the function is used, automatic dressing can be realized with a simple device.

図１は、この発明のドレス装置を装着した硬質脆性板の面取装置の一例を示した斜視図である。図において、１は加工対象となるガラス基板を載置するテーブル、Ｚはテーブル１の送り方向、２はテーブル１の幅方向両側に配置したマルチ砥石、Ｘ及びＹはマルチ砥石２のテーブル幅方向及び高さ方向の移動方向を示す。３はテーブル１の基台で、Ｚ方向の送りガイド３３に沿って移動する。   FIG. 1 is a perspective view showing an example of a chamfering device for a hard brittle plate to which the dressing device of the present invention is attached. In the figure, 1 is a table on which a glass substrate to be processed is placed, Z is a feed direction of the table 1, 2 is a multi-grinding wheel arranged on both sides in the width direction of the table 1, and X and Y are table width directions of the multi-grinding stone 2 And the direction of movement in the height direction. 3 is a base of the table 1 and moves along the feed guide 33 in the Z direction.

テーブル１は、円形の中央板１１と内側辺中央に中央板１１を収納する半円形の切欠を設けた矩形の２枚の側部板１２によって形成されている。中央板１１は、旋回装置１３を介して基台３に搭載されている。側部板１２は、基台３に設けたテーブル幅方向（Ｘ方向）のガイド３４に沿って両側のものが中央板１１を挟んで対称に移動する。両側の側部板１２が互いに離隔する方向に移動することにより、テーブル１の実質的な支持面積が拡がる（図６参照）。   The table 1 is formed by a circular central plate 11 and two rectangular side plates 12 provided with a semicircular cutout for accommodating the central plate 11 at the center of the inner side. The central plate 11 is mounted on the base 3 via a turning device 13. The side plates 12 are symmetrically moved with the central plate 11 interposed therebetween along a guide 34 in the table width direction (X direction) provided on the base 3. When the side plates 12 on both sides move in a direction away from each other, the substantial support area of the table 1 is expanded (see FIG. 6).

両側のマルチ砥石２は、テーブル１を跨ぐようにして設けられた図示しない門形フレームの両側のコラムの部分にそれぞれ幅方向移動台及び昇降台を介して装着されている。図には示していないが、テーブル１の送り方向の位置並びにマルチ砥石２の高さ及び幅方向の位置は、サーボモータによって回転駆動されるそれぞれの方向の送りねじによって設定されるようになっている。制御器は、基台３の送り方向（Ｚ方向）の位置、並びに、マルチ砥石２の高さ（Ｙ方向）及びテーブル幅方向（Ｘ方向）の位置を制御している。   The multi-grinding stones 2 on both sides are mounted on column portions on both sides of a portal frame (not shown) provided so as to straddle the table 1 via a width direction moving table and a lifting table. Although not shown in the figure, the position in the feed direction of the table 1 and the height and width direction of the multi-grinding stone 2 are set by feed screws in respective directions that are rotationally driven by a servo motor. Yes. The controller controls the position of the base 3 in the feed direction (Z direction), and the height (Y direction) and the table width direction (X direction) of the multi-grinding stone 2.

進退装置６５は、基台３にベースフレーム６０を介して装着されている。ベースフレーム６０は、基台３のテーブルの幅方向中央でかつ送り方向の前又は後に固定されている。   The advance / retreat apparatus 65 is attached to the base 3 via the base frame 60. The base frame 60 is fixed at the center in the width direction of the table of the base 3 and before or after the feeding direction.

進退装置６５は、テーブル幅方向に進退する２個のガイド付きエアシリンダ６２、６２を並べた構造である。２個のエアシリンダ６２、６２は、ロッドを逆方向にして、固定されている。各シリンダのロッドには、逆Ｌ形のブラケット６３が固定され、このブラケットの上面がドレス砥石６を固定する砥石ホルダ６１となっている。矩形板状のドレス砥石６は、砥石ホルダ６１の図示されていない位置決め用のストッパで位置決めされて、Ｌ形ブラケット６３との間でドレス砥石６を挟持する押え板６４で挟んで、固定されている。   The advancing / retreating device 65 has a structure in which two air cylinders 62 and 62 with guides that advance and retreat in the table width direction are arranged. The two air cylinders 62 and 62 are fixed with the rods in opposite directions. An inverted L-shaped bracket 63 is fixed to the rod of each cylinder, and the upper surface of the bracket serves as a grindstone holder 61 for fixing the dress grindstone 6. The rectangular plate-shaped dress grindstone 6 is positioned by a positioning stopper (not shown) of the grindstone holder 61 and is sandwiched and fixed by a presser plate 64 that sandwiches the dress grindstone 6 with the L-shaped bracket 63. Yes.

両側のドレス砥石６の位置は、テーブル１の幅中心に対して対称である。一方、両側のドレス砥石６を進退させるガイド付きシリンダ６２は、基台３の送り方向に並べて設けられている。ドレス砥石６を支持するＬ形ブラケット６３は、それぞれのシリンダ６２のロッドにテーブル送り方向の偏った位置で固定されて、両側のドレス砥石がテーブル１の幅中心線に対して対称に位置するようになっている（図２参照）。   The positions of the dressing grindstones 6 on both sides are symmetric with respect to the width center of the table 1. On the other hand, the guided cylinders 62 for moving the dress grindstones 6 on both sides forward and backward are provided side by side in the feed direction of the base 3. The L-shaped brackets 63 that support the dressing grindstone 6 are fixed to the rods of the respective cylinders 62 at positions offset in the table feed direction so that the dressing grindstones on both sides are positioned symmetrically with respect to the width center line of the table 1. (See FIG. 2).

テーブル１の相対送り方向の位置を制御している制御器には、ドレス砥石６の一辺を何回使用するかを設定する使用回数設定器と、ドレス動作時のテーブル１とマルチ砥石２との送り方向の相対位置関係の初期値を設定する初期位置設定器と、１回のドレス動作ごとにテーブル１とマルチ砥石２との送り方向の相対位置関係の移動量を設定する移動量設定器とを設ける。   The controller that controls the position of the table 1 in the relative feed direction includes a use number setting unit for setting how many times one side of the dressing grindstone 6 is used, and the table 1 and the multi grindstone 2 during the dressing operation. An initial position setting device for setting an initial value of the relative positional relationship in the feed direction, and a movement amount setting device for setting the movement amount of the relative positional relationship in the feed direction between the table 1 and the multi-grinding stone 2 for each dressing operation; Is provided.

また、マルチ砥石２の高さ及び幅方向位置を制御している制御装置には、ドレス動作の開始時におけるマルチ砥石２の高さ及び幅方向位置を設定する開始位置設定器と、ドレス動作時のマルチ砥石２の幅方向移動ストローク又はドレス動作終了時のマルチ砥石２の幅方向位置を設定する終了位置設定器と、初期位置から終了位置までドレス砥石を移動させるときの送り動作（送り速度、間歇送りをするときは一間歇送りのストロークと間歇送り間の休止時間や後退ストローク）を設定する動作設定器を設ける。   Further, the control device that controls the height and width direction position of the multi-grinding wheel 2 includes a start position setting unit for setting the height and width direction position of the multi-grinding stone 2 at the start of the dressing operation, and a dressing operation time. Of the multi-grinding wheel 2 in the width direction or an end position setter for setting the width-direction position of the multi-grinding wheel 2 at the end of the dressing operation, and a feed operation (feed speed, when moving the dressing whetstone from the initial position to the end position) When performing intermittent feed, an operation setting device is provided to set the intermittent feed stroke and the pause time or reverse stroke between intermittent feeds.

マルチ砥石のドレス動作は、次のように行われる。ドレス砥石を新しい砥石に交換した後の最初のドレス動作は、テーブルとマルチ砥石の送り方向の相対位置関係を設定された初期位置にして行われる。テーブル１を初期位置に相対移動し、マルチ砥石２を設定された開始位置に移動する。また、進退装置６５を動作させてドレス砥石６を進出させる。この状態でマルチ砥石２に終了位置への移動指令を与える。マルチ砥石２は、動作設定器に設定された送り速度及び間歇送り動作で、回転しながらドレス砥石６の辺６６に向かって移動し、ドレス砥石６が磨耗しながらマルチ砥石２のドレスが行われる。マルチ砥石２が設定された終了位置に達すると、マルチ砥石２が開始位置に後退し、進退装置６５が縮退してドレス砥石６がマルチ砥石２の移動領域から退避して、ドレス動作を終了する。ドレス動作が終了したら、制御器のカウンタに１を加える。   The dressing operation of the multi-grinding wheel is performed as follows. The first dressing operation after replacing the dressing grindstone with a new grindstone is performed with the relative positional relationship in the feed direction of the table and the multi grindstone set as an initial position. The table 1 is relatively moved to the initial position, and the multi-grinding stone 2 is moved to the set start position. Further, the advance / retreat apparatus 65 is operated to advance the dress grindstone 6. In this state, a movement command to the end position is given to the multi-grinding wheel 2. The multi-grinding stone 2 moves toward the side 66 of the dressing grindstone 6 while rotating at the feed speed and intermittent feed operation set in the operation setting device, and the multi-grinding stone 2 is dressed while the dressing grindstone 6 is worn. . When the multi-grinding wheel 2 reaches the set end position, the multi-grinding wheel 2 is retracted to the start position, the advancing / retracting device 65 is retracted, and the dressing grindstone 6 is retracted from the moving area of the multi-grinding stone 2 to complete the dressing operation. . When the dressing operation is completed, 1 is added to the counter of the controller.

その後、所定量の面取りを行って次のドレス動作が指令されたときは、テーブル１は、設定された移動量に前記カウンタのカウント値を乗じた値だけ初期位置からずれた位置にテーブルを停止させる。そして、前述した動作と同じ動作で２回目以降のドレス動作を行う。このとき、ドレス砥石６とマルチ砥石２とのテーブル送り方向の位置は、前回の位置に対して移動量設定器に設定されたずれ量だけずれている。マルチ砥石２は、前回のドレス時にドレス砥石６に形成した凹部６７に隣接した位置に新たな凹部を形成しつつドレスされる（図５参照）。   After that, when the next dressing operation is commanded after chamfering a predetermined amount, the table 1 stops the table at a position shifted from the initial position by a value obtained by multiplying the set movement amount by the count value of the counter. Let Then, the second and subsequent dressing operations are performed with the same operation as described above. At this time, the position of the dress grindstone 6 and the multi grindstone 2 in the table feed direction is shifted from the previous position by the shift amount set in the movement amount setting device. The multi-grinding wheel 2 is dressed while forming a new concave portion at a position adjacent to the concave portion 67 formed on the dressing grindstone 6 at the previous dressing (see FIG. 5).

使用回数設定器には、ドレス砥石の一辺ごとのドレス回数が設定されている。使用回数設定器に設定された回数目のドレスが終了してカウンタに１が加算されると、カウンタの値と使用回数設定器の設定値との比較により、制御装置は、ドレス砥石６の交換ないし取付方向の変更を制御盤のディスプレイに表示するか、音声などでオペレータに促す。そこでオペレータは、ドレス砥石６を付け替えてカウンタをリセットする。カウンタがリセットされると、次のドレス動作はテーブル１の停止位置を初期位置にして行われる。   The number of times of dressing for each side of the dressing grindstone is set in the use number setting device. When 1 is added to the counter after the number of dresses set in the use number setting device is completed, the control device replaces the dressing grindstone 6 by comparing the value of the counter with the set value of the use number setting device. Or the change of the mounting direction is displayed on the display of the control panel or the operator is urged by voice. The operator then replaces the dressing grindstone 6 and resets the counter. When the counter is reset, the next dressing operation is performed with the stop position of the table 1 as the initial position.

この発明のドレス装置を装着した硬質脆性板の面取装置の一例を示す斜視図The perspective view which shows an example of the chamfering apparatus of the hard brittle board which equipped with the dressing apparatus of this invention 図１の面取装置に装着したドレス装置を示す斜視図The perspective view which shows the dressing apparatus with which the chamfering apparatus of FIG. 1 was mounted | worn. ガラス基板加工中のマルチ砥石を示す斜視図Perspective view showing multi-grinding stone during glass substrate processing ドレス作業中のマルチ砥石を示す斜視図Perspective view showing the multi-grinding wheel during dressing 櫛歯状に磨耗したドレス砥石を示す平面図Top view showing a dress grindstone worn like a comb 硬質脆性板の面取装置をガラス加工状態で示した模式図Schematic diagram showing the chamfering device of hard brittle plate in the glass processing state

符号の説明Explanation of symbols

１ テーブル
２ 回転砥石
３ 基台
６ ドレス砥石
22 砥石板
61 砥石ホルダ
62 エアシリンダ
63 ブラケット
65 進退装置 1 table 2 rotating grindstone 3 base 6 dress grindstone
22 Whetstone
61 Wheel holder
62 Air cylinder
63 Bracket
65 Advance / Retreat Device

Claims (1)

硬質脆性板を保持するテーブル(1)と、このテーブルの加工送り方向と直交するテーブル幅方向両側に配置されて高さ及びテーブル幅方向の位置をＮＣ制御されている回転砥石(2)と、前記テーブルを搭載して前記回転砥石に対して加工送り方向に相対移動する基台(3)と、当該加工送り方向の位置を制御している制御器とを備え、前記回転砥石が前記加工送り方向の砥石軸に固定された円板状の砥石板(22)を備えている硬質脆性板の面取加工装置において、
前記基台(3)に、その加工送り方向と直交する両方向に向けて進退する進退端(63)を備えた進退装置(65)が装着され、当該進退装置の両側の進退端に矩形のドレス砥石(6)を固定する砥石ホルダ(61)が設けられており、当該砥石ホルダ(61)は、進出時に砥石ホルダ(61)に固定されたドレス砥石(6)を前記回転砥石(2)の移動領域内に進出させ、かつ縮退時にドレス砥石(6)を当該移動領域から退避させる位置及びストロークで設けられ、前記制御器は、ドレス砥石(6)の一辺を用いて行うドレス動作の回数を設定する設定器と、ドレス動作を行うときの基台(3)と回転砥石(2)の加工送り方向の相対位置の初期位置とドレス動作１回ごとに当該相対位置をずらす量とを設定する設定手段とを備えている、硬質脆性板の面取装置。 A table (1) that holds a hard brittle plate, and a rotating grindstone (2) that is arranged on both sides of the table width direction orthogonal to the processing feed direction of this table and whose position in the height and table width direction is NC-controlled, A base (3) that is mounted with the table and moves relative to the rotating grindstone in the processing feed direction, and a controller that controls the position of the processing feed direction, and the rotating grindstone includes the processing feed In a chamfering device for a hard brittle plate comprising a disc-shaped grindstone plate (22) fixed to a grindstone shaft in a direction,
The base (3) is mounted with an advancing / retracting device (65) having an advancing / retreating end (63) that advances / retreats in both directions orthogonal to the machining feed direction, and a rectangular dress is attached to both the advancing / retreating ends of the advancing / retreating device. A grindstone holder (61) for fixing the grindstone (6) is provided, and the grindstone holder (61) is configured to connect the dress grindstone (6) fixed to the grindstone holder (61) when the advancing to the rotary grindstone (2). The controller is provided with a position and stroke to advance into the moving area and retract the dressing grindstone (6) from the moving area when retracted, and the controller determines the number of dressing operations performed using one side of the dressing grindstone (6). Set the setting device, the initial position of the relative position in the processing feed direction of the base (3) and the rotating grindstone (2) when performing the dressing operation, and the amount to shift the relative position for each dressing operation A chamfering device for a hard brittle plate, comprising setting means .
JP2007260135A 2007-10-03 2007-10-03 Hard brittle plate chamfering device with dressing device Expired - Fee Related JP5154880B2 (en)

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CN109520444B (en) * 2018-11-19 2020-11-03 江苏科技大学 Device and method for measuring parallelism of machine body of large horizontal tensile testing machine
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