JPH03239409A - Coring method of plate like body and device thereof - Google Patents
Coring method of plate like body and device thereofInfo
- Publication number
- JPH03239409A JPH03239409A JP3552590A JP3552590A JPH03239409A JP H03239409 A JPH03239409 A JP H03239409A JP 3552590 A JP3552590 A JP 3552590A JP 3552590 A JP3552590 A JP 3552590A JP H03239409 A JPH03239409 A JP H03239409A
- Authority
- JP
- Japan
- Prior art keywords
- core drill
- grinding
- plate
- coring
- coolant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000007599 discharging Methods 0.000 claims abstract 3
- 239000012530 fluid Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 abstract description 37
- 239000007788 liquid Substances 0.000 abstract description 26
- 239000011521 glass Substances 0.000 abstract description 22
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 239000000919 ceramic Substances 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 241001530473 Swertia perennis Species 0.000 description 1
- 239000005328 architectural glass Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D59/00—Accessories specially designed for sawing machines or sawing devices
- B23D59/02—Devices for lubricating or cooling circular saw blades
- B23D59/025—Devices for lubricating or cooling circular saw blades the lubricating or cooling medium being applied through the mounting means of the tool, e.g. the tool spindle or hub
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、硝子板等の板状体に孔あけを行うコアリング
方法並びその装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coring method and apparatus for drilling holes in a plate-like object such as a glass plate.
自動車窓硝子用硝子板には、ワイパー用、パワーウィン
ド用等の取付孔をコアリングする必要がある。また、光
デイスク用や磁気ディスク等円板も硝子板からコアリン
グによって製作される。コアリンクは、回転するコアー
ドリルを硝子板に押し付け、クーラント液を研削部にか
けながら行われる。Glass plates for automobile windows require coring for mounting holes for wipers, power windows, etc. Further, disks for optical disks and magnetic disks are also manufactured from glass plates by coring. Core linking is performed by pressing a rotating core drill against the glass plate and applying coolant to the grinding part.
第６図では従来のンングルコアリング作業が示されてい
る。回転軸１０の下端にはコアードリル１２が設けられ
、このコアードリル１２に所定の押圧力を加えながら硝
子板１４を研削する。この時クーラント液は矢印で示す
ように中心孔１６を通って砥石１２の内部１２Ａに送ら
れる。クーラント液は砥石１２の内部１２Ａから外部に
向けて流れるようになる。FIG. 6 shows a conventional core coring operation. A core drill 12 is provided at the lower end of the rotating shaft 10, and the glass plate 14 is ground while applying a predetermined pressing force to the core drill 12. At this time, the coolant liquid is sent to the interior 12A of the grindstone 12 through the center hole 16 as shown by the arrow. The coolant liquid comes to flow from the inside 12A of the grindstone 12 toward the outside.
〔発明が解決しようとする課題二
第７図では第６図の研削部が拡大して示されている。コ
アードリル１２によっつで硝子板１４は研削され、′ａ
１８が形成される。クーラント液は第７図の矢印で示す
ようにコアードリル１２の内部１２ Ａから外側に向か
って流れる。この為コアードリル１２の外側に於いては
クーラント液の不足、硝子粉、砥石の摩耗の不均一等の
原因て溝１８外側の縁部１８Ａが欠け、チッピング等が
生ずる。ａ１８の外周縁１８Ａが欠けると穿孔された硝
子板の製品価値がｔくなる。[Problem to be Solved by the Invention Second Problem to be Solved by the Invention In FIG. 7, the grinding section shown in FIG. 6 is shown in an enlarged scale. The glass plate 14 is ground by the core drill 12, and 'a
18 is formed. The coolant fluid flows outward from the interior 12A of the core drill 12 as shown by the arrows in FIG. For this reason, on the outside of the core drill 12, the outer edge 18A of the groove 18 is chipped and chipping occurs due to lack of coolant, glass powder, uneven wear of the grindstone, etc. If the outer peripheral edge 18A of a18 is chipped, the product value of the perforated glass plate will be t.
本発明はこのようＩヨ事情に鑑みてなされたもので、コ
アリング作業に於いてチッピング等が生じない板状体の
コアリング方法並びに装置を提案することを目的とする
。The present invention has been made in view of these circumstances, and it is an object of the present invention to propose a method and apparatus for coring a plate-shaped body that does not cause chipping or the like during coring work.
本発明は、研削部に研削液を供給しながら円筒状のコア
ドリルで硝子板、セラミック板等の板状体のコアリング
を行う方法に於いて、研削液をコアードリルの外側から
内側に流れるように供給して研削を行うことを特徴とし
ている。The present invention provides a method for coring a plate-shaped object such as a glass plate or a ceramic plate using a cylindrical core drill while supplying grinding fluid to the grinding section, in which the grinding fluid flows from the outside of the core drill to the inside. It is characterized by supplying and grinding.
本発明では、シングルコアリングに於いて、研削液をコ
アードリルの外側から内側に流れるようにしたので、チ
ッピングは生じてもコアードリルで囲まれる部分であり
、この部分は穿孔された硝子板、例えばａ動車用窓硝子
、建築用硝子、その他各種硝子等では廃棄される部分な
ので問題は生じない。In the present invention, in a single core ring, the grinding fluid is made to flow from the outside to the inside of the core drill, so even if chipping occurs, it is only in the area surrounded by the core drill, and this area is exposed to the perforated glass plate, e.g. This does not pose a problem for automobile window glass, architectural glass, and other types of glass, as these parts are discarded.
また、本発明では、ダブルコアリングに於いて、研削液
を内ｍｊｌのコアードリルと外側のコアードリルとの隙
間から内側コアードリルの内部に向けて並プに外側コア
ードリルの外部に向けて流れるように供給するので、チ
ッピングは生じても内側コアードリルで囲まれる部分並
びに外側コアードリルの外側の部分であり、この部分は
光ディスク、磁気ディスク、光磁気ディスク用円板では
廃棄される部分なので問題は生じない。Further, in the present invention, in the double coring, the grinding fluid is supplied so as to flow from the gap between the inner mjl core drill and the outer core drill toward the inside of the inner core drill and toward the outside of the outer core drill in parallel. Even if chipping occurs, it occurs only in the area surrounded by the inner core drill and the area outside the outer core drill, and since these areas are discarded in optical discs, magnetic discs, and magneto-optical discs, no problem occurs.
以下添付口筒に従って本発明に係る板状体のコアリング
装置の実施例を説明する。Embodiments of the coring device for a plate-shaped body according to the present invention will be described below with reference to the attached mouthpiece.
ワークテーブル２０上には７−りとして硝子板２２が載
置されている。回転軸２４は円筒体２６にベアリング２
８．３０を介して回転自在に支持されている。円筒体２
６の下端には取付板３２が設けふれ、この取付板３２に
は硝子板２２を囲む円筒状のベローズ３４が設けられる
。ベローズ３４は砥石４０の動きに追従することが出来
る。ベローズ３４の下端部にはマグネットリング、その
他各種のンール用リング３６が設けられ、ワークテーブ
ル２０上、又は硝子板の寸法が大きい場合には第５図の
説明で後述するように硝子板上に吸着できるようになる
。ンール用リング３６の下面には７−ル材３７が装着さ
れる。取付板３２にはクーラント液供給管３８が設けら
れ、ベローズ３４内にクーラント液を供給できるように
なっている。A glass plate 22 is placed on the work table 20 as a column. The rotating shaft 24 has a bearing 2 on a cylindrical body 26.
It is rotatably supported via 8.30. Cylindrical body 2
A mounting plate 32 is provided at the lower end of the glass plate 6, and a cylindrical bellows 34 surrounding the glass plate 22 is provided on the mounting plate 32. The bellows 34 can follow the movement of the grindstone 40. A magnet ring and various other ring rings 36 are provided at the lower end of the bellows 34, and are mounted on the work table 20 or, if the glass plate is large, as will be described later in the explanation of FIG. Becomes able to absorb. A seven-ring material 37 is attached to the lower surface of the ring 36. A coolant liquid supply pipe 38 is provided on the mounting plate 32 so that coolant liquid can be supplied into the bellows 34.
回転軸２４の下端部には円筒状のコアドリル４０が設け
られ、硝子板２２のコアリングが出来るようになってい
る。砥石４０は、ダイヤモンド砥石、電着砥石、メタル
ボンド砥石、セラミック砥石等が用いられる。コアード
リル４０の内部４２は回転軸２４の中心孔４４と連通さ
れ、この中心孔４４はクーラント液排出管５０と連通さ
れている。即ち、中心孔４４は、第２図で示す半径方向
の連通路４６に接続され、連通路４６の出口は円筒体２
６に形成された凹Ｂ４８に開口している。A cylindrical core drill 40 is provided at the lower end of the rotating shaft 24, and is capable of coring the glass plate 22. As the whetstone 40, a diamond whetstone, an electroplated whetstone, a metal bond whetstone, a ceramic whetstone, etc. are used. The interior 42 of the core drill 40 communicates with a center hole 44 of the rotating shaft 24, and this center hole 44 communicates with a coolant discharge pipe 50. That is, the center hole 44 is connected to a radial communication path 46 shown in FIG.
It opens into a recess B48 formed in 6.
凹部４８は孔４９を介してクーント液排出管５０と連通
される。クーラント液排出管５０は図示しないフィルタ
を通ってクーラントタンクと連通され、クーラントタン
クはポンプ５２によりクーラント液供給管３８を介して
再乙Ｃベローズ３４内にクーラント液を供給するように
なっている。尚、回転軸２４と円筒体２６との間にはシ
ール部材５４．５６．５６′が配置され、更に円筒体２
６には支持部材５８が設けられている。The recess 48 communicates with a Kuhnt liquid discharge pipe 50 via a hole 49 . The coolant discharge pipe 50 is communicated with a coolant tank through a filter (not shown), and the coolant tank is adapted to supply coolant into the recirculating bellows 34 via a coolant supply pipe 38 by a pump 52. Note that seal members 54, 56, and 56' are arranged between the rotating shaft 24 and the cylindrical body 26, and the cylindrical body 26
6 is provided with a support member 58.
前記の如く構成された本発明に係る板状体のコアリング
装置は次のように実施される。The coring device for a plate-shaped body according to the present invention configured as described above is implemented as follows.
先ずクーラント液供給管３８からベローズ３４内にクー
ラント液が供給され、この状態で回転軸２４を回転し、
砥石４０を所定の押圧力で硝子板２２に向けて押し付け
る。同時にクーラント液排出管５０からはクーラント液
が吸引され、これによりコアードリル４０の内部４２の
クーラント液は上方に吸い上げられ、回転軸２４の中心
孔４４、連通孔４６、凹部４８、排出管５０を通って排
出される。これにより、クーラント液の流れは第３図に
示すように砥石４０の外測から内部４２に向かって流れ
、溝２３の外周縁２３Ａにはチッピングは生じない。構
２３の内周Ｉ！２３Ｂはチッピングは生じる虞があるが
、穿孔された硝子板、例えば自動車用窓硝子等の場合コ
アードリル４０で囲まれる部分は廃棄する部分であるの
で問題は生じない。First, coolant liquid is supplied from the coolant liquid supply pipe 38 into the bellows 34, and in this state, the rotating shaft 24 is rotated,
The grindstone 40 is pressed against the glass plate 22 with a predetermined pressing force. At the same time, the coolant liquid is sucked from the coolant liquid discharge pipe 50, and thereby the coolant liquid in the interior 42 of the core drill 40 is sucked upward and passes through the center hole 44 of the rotating shaft 24, the communication hole 46, the recess 48, and the discharge pipe 50. is discharged. As a result, the coolant liquid flows from the outside of the grindstone 40 toward the inside 42 as shown in FIG. 3, and no chipping occurs on the outer peripheral edge 23A of the groove 23. Inner circumference I of structure 23! 23B may cause chipping, but in the case of a perforated glass plate, such as automobile window glass, the area surrounded by the core drill 40 is a part to be discarded, so no problem occurs.
第４図では光ディスク、磁気ディスク、光磁気ディスク
等用円板を製作する場合のダブルコアリング作業を示し
ている。回転軸６０の下端部には取付板６２が設けられ
、この取付板６２には内側の小径のコアードリル６４と
、このコアードリル６４と同窓に外側で大径のコアード
リル６６が設けられている。回転軸６０には中心孔６８
が形成され、この中心孔６８は取付板６２に形成された
孔７０．７２を介して内側コアードリル６４と外側コア
ードリル６６との隙間６７に開口している。FIG. 4 shows a double coring operation when manufacturing discs for optical disks, magnetic disks, magneto-optical disks, etc. A mounting plate 62 is provided at the lower end of the rotating shaft 60, and the mounting plate 62 is provided with a small diameter core drill 64 on the inside and a large diameter core drill 66 on the outside in the same window as the core drill 64. The rotating shaft 60 has a center hole 68
is formed, and this center hole 68 opens into a gap 67 between the inner core drill 64 and the outer core drill 66 via holes 70 and 72 formed in the mounting plate 62.
一方向側コアードリル６４の内部６５はターラント液排
出通路７４と連通されている。An interior 65 of the one-way core drill 64 communicates with a tarant liquid discharge passage 74 .
前記の如く構成されたダブルコアリング装置において、
クーラント液供給通路６８．７０．７２から砥石６４と
砥石６６との隙間６７にクーラント液が供給されると、
クーラント液は内側の砥石６４についてみると外側から
内側に向かってクーラント液が流れる。砥石６４の内部
６５のクーラント液は排出路７４を通って排出される。In the double coring device configured as described above,
When the coolant liquid is supplied from the coolant liquid supply passage 68, 70, 72 to the gap 67 between the grindstone 64 and the grindstone 66,
When looking at the inner grindstone 64, the coolant liquid flows from the outside toward the inside. The coolant liquid in the interior 65 of the grindstone 64 is discharged through the discharge passage 74.
従ってこの場合砥石６４の内側に対応する縁にチッピン
グが生ずるが、各種ディスク用円板にとって砥石６４で
囲まれる部分は廃棄する部分なので問題にならない。ま
た、クーラント液は外側砥石６６についてみれば、内側
から外側に向かって流れ、砥石６６の外側に対応する部
分にチッピングが生ずるが、この場合も各種ディスク用
円板にとって砥石６６から外側部分は製品とされず廃棄
される部分なので問題とならない。Therefore, in this case, chipping occurs on the edge corresponding to the inner side of the grindstone 64, but this does not pose a problem since the portion surrounded by the grindstone 64 is a part to be discarded for various types of discs. In addition, when looking at the outer grindstone 66, the coolant liquid flows from the inside to the outside, and chipping occurs in the portion corresponding to the outside of the grindstone 66, but in this case as well, for various discs, the outer portion from the grindstone 66 is the product. This is not a problem because it is a part that will be discarded without being treated as such.
？；５図では第１図に示されている実施例の変形例を示
している。第５図と第１図との実施例の相違点は第１図
ではシール用リング３６がワークテーブル２０上に吸着
されているのに対し、第５図ではシール用リング３６が
硝子板２２上に吸着されている点である。このように、
本発明に係る板状体のコアリング装置によれば、硝子板
２２の寸法が大きい場合にも第１図の実施例と同様に硝
子板２２をコアリングすることができる。尚、第５図上
で第１図の部材と同一部材については同一符号を付して
説明を省略する。? ; FIG. 5 shows a modification of the embodiment shown in FIG. 1. The difference between the embodiments in FIG. 5 and FIG. 1 is that in FIG. 1, the sealing ring 36 is suctioned onto the work table 20, whereas in FIG. This is the point where it is adsorbed. in this way,
According to the coring device for a plate-shaped body according to the present invention, even when the size of the glass plate 22 is large, it is possible to core the glass plate 22 in the same manner as in the embodiment shown in FIG. Incidentally, the same members in FIG. 5 as those in FIG. 1 are designated by the same reference numerals, and the explanation thereof will be omitted.
尚、本実施例で用いられるクーラント液は水が代表的な
ものであり、これには、防錆材、潤滑材が含まれている
のが好ましいが勿論これを添加する必要は必ずしもない
。Incidentally, the coolant liquid used in this embodiment is typically water, and although it is preferable that the coolant liquid contains a rust preventive material and a lubricant, it is of course not necessary to add these.
以上説明したように本発明に係る板状体のコアリング方
法並びにその装置によれば、シングルコアリングに於い
てはクーラント液をコアードリルの外側から内側に流れ
るように供給して研削を行うので、製品部分にチッピン
グが生じない。また、ダブルコアリングに於いては、ク
ーラント液を内側のコアードリルと外側のコアードリル
との隙間から供給し、内側コアードリルの内部に向けて
並びに外側コアードリルの外部に向）すてクーラント液
を流れるようにしたので製品部分にチッピング等が生じ
！；い。As explained above, according to the method and apparatus for coring a plate-shaped body according to the present invention, in the case of a single core ring, the coolant liquid is supplied so as to flow from the outside to the inside of the core drill to perform grinding. No chipping occurs on the product part. In addition, in the double coring, the coolant liquid is supplied from the gap between the inner core drill and the outer core drill, and the coolant liquid is made to flow toward the inside of the inner core drill and toward the outside of the outer core drill. Therefore, chipping etc. may occur on the product part! ;stomach.
第１図は本発明に係るンングルコアリング作業を示す概
略図、第２図は第１図上で■−■線に沿う断面図、第３
図は第１図の研削部分を拡大して示す断面図、第４図は
本発明に係るダブルコアリング作業を示す説明図、第５
図は第１図の他の実施例を示す概略図、第６図は従来の
コアリング作業を示す説明図、第７図は従来のコアリン
グ作業のクーラント液の流れを示す説明図である。
２０・・ワークテーブル、 ２２・・硝子板、３４・
・・ベローズ、 ３８・・・クーラント液供給管、４０
・・・コアードリル、
４４・・・クーラント液排出通路、
５０・・・クーラント液排出管。Fig. 1 is a schematic diagram showing the core coring work according to the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig.
The figures are an enlarged sectional view of the grinding part in Fig. 1, Fig. 4 is an explanatory view showing the double coring operation according to the present invention, and Fig. 5 is an explanatory view showing the double coring operation according to the present invention.
The drawings are a schematic diagram showing another embodiment of FIG. 1, FIG. 6 is an explanatory diagram showing a conventional coring operation, and FIG. 7 is an explanatory diagram showing the flow of coolant in a conventional coring operation. 20...Work table, 22...Glass plate, 34...
...Bellows, 38...Coolant liquid supply pipe, 40
...Core drill, 44...Coolant liquid discharge passage, 50...Coolant liquid discharge pipe.
Claims (4)
状体のコアリングを行う方法に於いて、研削液をコアー
ドリルの外側から内側に流れるように供給して研削を行
うことを特徴とする板状体のコアリング方法。(1) A method for coring a plate-shaped body with a core drill while supplying a grinding fluid to the grinding section, characterized in that the grinding fluid is supplied so as to flow from the outside to the inside of the core drill to carry out the grinding. Coring method for plate-shaped bodies.
に取付けられ板状体を研削するコアードリルと、 少なくともコアードリルの研削部を囲む容器と、容器内
に研削液を供給する供給管と、 コアードリルの内側と連通され研削液を排出する排出管
と、 から成る板状体のコアリング装置。(2) A work table on which the plate-like object is placed, a core drill attached to the tip of the rotating shaft for grinding the plate-like object, a container that surrounds at least the grinding part of the core drill, and a supply pipe that supplies grinding fluid into the container. , a discharge pipe that communicates with the inside of the core drill and discharges grinding fluid; and a plate-shaped coring device.
た内外２重のコアードリルで板状体のコアリングを行う
方法に於いて、 研削液を内側のコアードリルと外側のコアードリルとの
隙間から内側コアードリルの内部に向けて並びに外側コ
アードリルの外部に向けて流れるように供給して研削を
行うことを特徴とする板状体のコアリング方法。(3) In the method of coring a plate-shaped object using two core drills arranged concentrically with each other, while supplying grinding fluid to the grinding section, the grinding fluid is supplied to the inner core drill and the outer core drill. A method for coring a plate-shaped body, characterized in that grinding is carried out by supplying the material in a flowing manner from a gap toward the inside of an inner core drill and toward the outside of an outer core drill.
置された内外２重のコアードリルと、内側コアードリル
と外側コアードリルとの隙間に研削液を供給する供給管
と、 内側コアードリルの内部と連通され研削液を排出する排
出管と、 から成る板状体のコアリング装置。(4) A work table on which a plate-shaped object is placed, a double inner and outer core drill arranged concentrically, a supply pipe that supplies grinding fluid to the gap between the inner core drill and the outer core drill, and the inside of the inner core drill. A plate-shaped coring device consisting of a discharge pipe communicating with the grinding fluid and discharging the grinding fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3552590A JPH03239409A (en) | 1990-02-16 | 1990-02-16 | Coring method of plate like body and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3552590A JPH03239409A (en) | 1990-02-16 | 1990-02-16 | Coring method of plate like body and device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03239409A true JPH03239409A (en) | 1991-10-25 |
Family
ID=12444163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3552590A Pending JPH03239409A (en) | 1990-02-16 | 1990-02-16 | Coring method of plate like body and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03239409A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671638A (en) * | 1992-03-02 | 1994-03-15 | Rasa Ind Ltd | Core drill |
| JPH07266329A (en) * | 1994-03-30 | 1995-10-17 | Nippon Kuresento Kk | Method and apparatus for punching stone material |
| JPH07278851A (en) * | 1994-09-19 | 1995-10-24 | Tokai Carbon Co Ltd | Electrode plate for plasma etching and its production |
| KR19980032390A (en) * | 1996-10-01 | 1998-07-25 | 프랑코바벨로니 | Polishing device for grinding the slope of the glass plate edge in numerical controller |
| US7677847B2 (en) * | 2002-03-26 | 2010-03-16 | Siemens Aktiengesellschaft | Sealing assembly for a spindle |
| JP2016127051A (en) * | 2014-12-26 | 2016-07-11 | 新日鐵住金株式会社 | Side face processing method of silicon carbide single crystal ingot |
| CN108115476A (en) * | 2017-12-20 | 2018-06-05 | 重庆家本家科技有限公司 | Household electrical appliances plastic housing sanding apparatus |
| JP2018529542A (en) * | 2015-10-01 | 2018-10-11 | エム・ディー・シー マクス デトヴューラー アクチエンゲゼルシャフトＭＤＣ Ｍａｘ Ｄａｅｔｗｙｌｅｒ ＡＧ | Dental processing machine with bellows |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4962959A (en) * | 1972-10-23 | 1974-06-18 |
-
1990
- 1990-02-16 JP JP3552590A patent/JPH03239409A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4962959A (en) * | 1972-10-23 | 1974-06-18 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671638A (en) * | 1992-03-02 | 1994-03-15 | Rasa Ind Ltd | Core drill |
| JPH07266329A (en) * | 1994-03-30 | 1995-10-17 | Nippon Kuresento Kk | Method and apparatus for punching stone material |
| JPH07278851A (en) * | 1994-09-19 | 1995-10-24 | Tokai Carbon Co Ltd | Electrode plate for plasma etching and its production |
| KR19980032390A (en) * | 1996-10-01 | 1998-07-25 | 프랑코바벨로니 | Polishing device for grinding the slope of the glass plate edge in numerical controller |
| US7677847B2 (en) * | 2002-03-26 | 2010-03-16 | Siemens Aktiengesellschaft | Sealing assembly for a spindle |
| JP2016127051A (en) * | 2014-12-26 | 2016-07-11 | 新日鐵住金株式会社 | Side face processing method of silicon carbide single crystal ingot |
| JP2018529542A (en) * | 2015-10-01 | 2018-10-11 | エム・ディー・シー マクス デトヴューラー アクチエンゲゼルシャフトＭＤＣ Ｍａｘ Ｄａｅｔｗｙｌｅｒ ＡＧ | Dental processing machine with bellows |
| CN108115476A (en) * | 2017-12-20 | 2018-06-05 | 重庆家本家科技有限公司 | Household electrical appliances plastic housing sanding apparatus |
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