JPH052461B2 - - Google Patents
Info
- Publication number
- JPH052461B2 JPH052461B2 JP18168485A JP18168485A JPH052461B2 JP H052461 B2 JPH052461 B2 JP H052461B2 JP 18168485 A JP18168485 A JP 18168485A JP 18168485 A JP18168485 A JP 18168485A JP H052461 B2 JPH052461 B2 JP H052461B2
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- grinding
- grinding surface
- grindstone
- dressing
- 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.)
- Expired - Lifetime
Links
- 229910003460 diamond Inorganic materials 0.000 claims description 16
- 239000010432 diamond Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 238000010891 electric arc Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 230000001737 promoting effect Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 13
- 239000006061 abrasive grain Substances 0.000 description 9
- 239000012530 fluid Substances 0.000 description 9
- 238000003754 machining Methods 0.000 description 6
- 101150027985 NAA35 gene Proteins 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/001—Devices or means for dressing or conditioning abrasive surfaces involving the use of electric current
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は平面研削盤などに用いられ、特にセラ
ミツク研削に好適なメタルボンドダイヤモンド砥
石の放電ドレツシング装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a discharge dressing device for a metal-bonded diamond grinding wheel used in a surface grinder, etc., and particularly suitable for grinding ceramics.
従来、メタルボンドダイヤモンド砥石の放電に
よるドレツシングは次のように行われていた。す
なわち、前記砥石の研削面に近接対向して電極を
設け、前記砥石を回転させた状態で、砥石の研削
面と前記電極の間に研削液を供給しつつアーク放
電を発生させ、砥石のメタルボンド部の外周面部
分を除去してドレツシングするものであつた。
Conventionally, dressing of a metal-bonded diamond grinding wheel by electric discharge has been carried out as follows. That is, an electrode is provided close to and facing the grinding surface of the grinding wheel, and while the grinding wheel is being rotated, arc discharge is generated while supplying a grinding liquid between the grinding surface of the grinding wheel and the electrode, and the metal of the grinding wheel is Dressing was performed by removing the outer circumferential surface of the bond portion.
この場合、被研削物が導電性のものであれば、
その切り粉が前記砥石の加工回転時にその砥石の
研削面上に付着した前記研削液中に混入し、前記
電極及び砥石間（放電間隙）において導電性粒子
として存在することになり、放電を促進するよう
に働く。しかし被研削物がセラミツクなどの絶縁
体である場合には、前記放電間隙に絶縁性粒子が
介在することになつて放電、換言すればドレツシ
ングを抑制するように働くことになつた。また被
研削物が良導体であつても、ダイヤモンド砥粒の
大きな砥石で荒加工、すなわち高能率加工する際
のドレツシングにおいては、砥粒先端からメタル
ボンド部外周面までの距離が長くなるため放電し
にくく、ドレツシングが能率的に行われなかつ
た。 In this case, if the object to be ground is conductive,
The chips are mixed into the grinding liquid that adheres to the grinding surface of the grindstone during machining rotation of the grindstone, and exist as conductive particles between the electrode and the grindstone (discharge gap), promoting electrical discharge. Work like you do. However, when the object to be ground is an insulator such as ceramic, insulating particles are present in the discharge gap and work to suppress discharge, in other words, dressing. Furthermore, even if the object to be ground is a good conductor, during rough machining using a grindstone with large diamond abrasive grains, that is, dressing during high-efficiency machining, the distance from the abrasive grain tip to the outer circumferential surface of the metal bond part becomes long, resulting in electrical discharge. It was difficult and dressing could not be done efficiently.
本発明は上記のような実情に鑑みてなされたも
ので、被研削物の材質やダイヤモンド砥粒の大き
さに拘らず、能率よくドレツシングすることがで
きるメタルボンドダイヤモンド砥石の放電ドレツ
シング装置を提供することを目的とする。
The present invention has been made in view of the above-mentioned circumstances, and provides an electrical discharge dressing device for a metal-bonded diamond grinding wheel that can dress efficiently regardless of the material of the object to be ground or the size of the diamond abrasive grains. The purpose is to
本発明装置は、アーク放電によるドレツシング
時に、砥石研削面に導電性物質からなる放電促進
材を適宜圧力で接触させることにより、前記研削
面上に付着した研削液中に前記放電促進材の切り
粉である導電性粒子を混入させ、前記アーク放電
の発生を促進させて上述目的を達成するようにし
たものである。
The device of the present invention brings the discharge accelerating material made of a conductive substance into contact with the grinding surface of the whetstone under appropriate pressure during dressing by arc discharge, so that chips of the discharging accelerating material are contained in the grinding fluid adhering to the grinding surface. The above-mentioned object is achieved by mixing conductive particles, which promote the generation of the arc discharge.
以下図面を参照して本発明の実施例を説明す
る。第１図は本発明によるメタルボンドダイヤモ
ンド砥石の放電ドレツシング装置の一実施例の全
体構成を示す図で、図中１はメタルボンドダイヤ
モンド砥石である。この砥石１には中心部分にフ
ランジ４に取り付けられており、軸受６に支持さ
れたシヤフト５が回転することによつてフランジ
４を介して例えば矢印イ方向に回転自在になされ
ている。２は被加工物であり、テーブル７上に載
置固定されている。３は研削液供給用ノズルを示
す。８はパルス電源であり、パルス出力端の正極
がブラシ９及びフランジ４を通して砥石１に接続
され、負極が電極１０に接続されている。１１は
放電状態検出回路であり、その詳細を第３図に基
づき後述する。１２は差動アンプであり、放電状
態検出回路１１からのアナログ出力信号が負側入
力端に与えられ、またその正側入力端には放電状
態の基準値E1が与えられている。差動アンプ１
２の出力電圧はドライブアンプ１３で増幅され、
モータ１４に与えられる。このモータ１４は第１
のギア１５に結合され、このギア１５は第２のギ
ア１６に噛合されている。このギア１６は中央部
をボールスクリユ１７が螺合貫通しており、また
上下方向に動かないようになされている。そして
上記ボールスクリユ１７は、下端が前記電極１０
の上端に連結されており、上端が支持フレーム１
８に固定されたナツト１９に螺入されている。こ
の場合ナツト１９は支持フレーム１８に絶縁状態
で固定されており、また上記モータ１４も絶縁状
態で支持フレーム１８に固定されている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing the overall configuration of an embodiment of a discharge dressing device for a metal-bonded diamond grinding wheel according to the present invention, and in the figure, numeral 1 indicates a metal-bond diamond grinding wheel. A flange 4 is attached to the center of the whetstone 1, and as a shaft 5 supported by a bearing 6 rotates, the whetstone 1 is rotatable via the flange 4, for example, in the direction of arrow A. Reference numeral 2 denotes a workpiece, which is placed and fixed on a table 7. 3 indicates a grinding fluid supply nozzle. Reference numeral 8 denotes a pulse power source, the positive electrode of which is connected to the grinding wheel 1 through the brush 9 and the flange 4, and the negative electrode is connected to the electrode 10. 11 is a discharge state detection circuit, the details of which will be described later based on FIG. 3. 12 is a differential amplifier, the analog output signal from the discharge state detection circuit 11 is applied to its negative input terminal, and the reference value E1 of the discharge state is applied to its positive input terminal. Differential amplifier 1
The output voltage of 2 is amplified by the drive amplifier 13,
is applied to the motor 14. This motor 14 is the first
This gear 15 is meshed with a second gear 16. A ball screw 17 is threaded through the center of the gear 16, and the gear 16 is prevented from moving in the vertical direction. The ball screw 17 has a lower end connected to the electrode 10.
The upper end is connected to the upper end of the support frame 1.
It is screwed into a nut 19 fixed to 8. In this case, the nut 19 is fixed to the support frame 18 in an insulated manner, and the motor 14 is also fixed to the support frame 18 in an insulated manner.
一方、放電状態検出回路１１の出力信号は差動
アンプ２０の負側入力端にも与えられ、またその
差動アンプ２０の正側入力端には放電状態の基準
値E2が与えられている。差動アンプ２０の出力
電圧はドライブアンプ２１で増幅されてモータ２
２に与えられ、これを駆動する。このモータ２２
は絶縁性のねじ２３を回転させ、このねじ２３を
図中左右方向に移動させる。２５は導電性物質か
らなる放電促進材で、ばね２４を介して上記ねじ
２３に連結されており、ねじ２３の移動によつて
その一端面が前記砥石１の研削面に接離自在であ
る。 On the other hand, the output signal of the discharge state detection circuit 11 is also given to the negative input terminal of the differential amplifier 20, and the reference value E 2 of the discharge state is given to the positive input terminal of the differential amplifier 20. . The output voltage of the differential amplifier 20 is amplified by the drive amplifier 21 and applied to the motor 2.
2 to drive it. This motor 22
rotates the insulating screw 23 and moves this screw 23 in the left-right direction in the figure. Reference numeral 25 denotes a discharge accelerator made of a conductive material, which is connected to the screw 23 via a spring 24, and one end surface of which can move toward and away from the grinding surface of the grindstone 1 as the screw 23 moves.
研削に際しては、まず被加工物２がテーブル７
上に固定される。そして図示していない駆動装置
によつてテーブル７が左右、図示例では右方向に
移動し、被加工物２を砥石１側に接近させながら
砥石１を高速回転させ、かつ矢印ロに示すように
研削液を供給するもので、これにより被加工物２
が研削される。 When grinding, first the workpiece 2 is placed on the table 7.
fixed on top. Then, the table 7 is moved from side to side, rightward in the illustrated example, by a drive device (not shown), and the grindstone 1 is rotated at high speed while bringing the workpiece 2 closer to the grindstone 1 side, and as shown by the arrow B. It supplies grinding fluid, which allows the workpiece 2 to be
is ground.
この際、同時に砥石１の方も摩耗されるもの
で、以下これについて説明する。第２図は砥石１
の部分拡大断面図で、この第２図において第１図
と同一部分は同一符号にて示す。また１ａはダイ
ヤモンド砥粒、１ｂはメタルボンド部を示す。δ1
はダイヤモンド砥粒１ａの先端が摩耗した場合の
砥粒１ａのメタルボンド部１ｂからの突き出し量
を示している。このような砥石１の摩耗状態では
研削能率が低下するので、δ2に示すようにダイヤ
モンド砥粒１ａの突き出し量を増大させる。すな
わち、放電加工により砥石１をドレツシング（メ
タルボンド部１ｂの外周面部分を除去）するもの
で、以下これについて、説明する。パルス電源８
からのパルス電圧は電極１０とメタルボンドダイ
ヤモンド砥石１（メタルボンド部１ｂ）の間に印
加され、相互間にアーク放電を発生させる。一
方、図示されていないモータによつて砥石１は回
転され、かつ研削液供給用ノズル３から研削液が
上記砥石１の研削面に供給される。放電状態検出
回路１１は前記アーク放電状態を検出するが、後
述のようにこの放電状態検出回路１１の出力信号
は、放電発生量に比例して高い電圧が出力される
ようになつている。従つて電極１０が、砥石１か
ら大きく離れた状態では放電状態検出回路１１の
出力信号は低電圧、例えば0vであるので、この
出力信号が差動アンプ１２の負側入力端に与えら
れ、放電状態の基準値E1と比較されることによ
り、モータ１４を回転させて電極１０が砥石１に
近づくようにボールスクリユ１７で送られる。電
極１０と砥石１（正確にはメタルボンド部１ｂ）
の間隙長が放電発生に十分なだけ短くなるとアー
ク放電が発生し、これにより、メタルボンド部１
ａ外周面部分が表面側から放電加工除去される。
放電発生の間隙長は、放電特性上、第２図に示す
ように放電間隙における導電性粒子２５ａの量が
多いほど大となる。すなわち、導電性粒子２５ａ
を電極１０と砥石１の間隙中に研削液３ａと共に
混在させることにより放電ドレツシングが容易と
なる。そこで本発明では導電性物質からなる放電
促進材２５を砥石１の研削面に対して接離自在に
配設したもので、その材質はグラフアイトなどの
ような比較的研削されやすいもの、例えばグラフ
アイト電極材が良い。放電ドレツシング時の放電
促進材２５の砥石１研削面への圧接力は、上記放
電状態検出回路１１からの出力信号が差動アンプ
２０の負側入力端に与えられて放電状態の基準値
E2と比較され、その差電圧がドライブアンプ２
１で電力増幅されてモータ２２を回転させ、ねじ
２３の位置を変えて調整される。 At this time, the grindstone 1 is also worn, and this will be explained below. Figure 2 shows whetstone 1
2, the same parts as in FIG. 1 are designated by the same reference numerals. Further, 1a indicates diamond abrasive grains, and 1b indicates a metal bond portion. δ 1
indicates the amount of protrusion of the abrasive grain 1a from the metal bond portion 1b when the tip of the diamond abrasive grain 1a is worn out. In such a worn state of the grindstone 1, the grinding efficiency decreases, so the amount of protrusion of the diamond abrasive grains 1a is increased as shown by δ 2 . That is, the grindstone 1 is dressed (removed the outer circumferential surface portion of the metal bond portion 1b) by electric discharge machining, and this will be explained below. Pulse power supply 8
A pulse voltage is applied between the electrode 10 and the metal bond diamond grinding wheel 1 (metal bond portion 1b) to generate an arc discharge between them. On the other hand, the grindstone 1 is rotated by a motor (not shown), and grinding fluid is supplied to the grinding surface of the grindstone 1 from the grinding fluid supply nozzle 3. The discharge state detection circuit 11 detects the arc discharge state, and as will be described later, the output signal of the discharge state detection circuit 11 is designed to output a high voltage in proportion to the amount of discharge generated. Therefore, when the electrode 10 is far away from the grinding wheel 1, the output signal of the discharge state detection circuit 11 is a low voltage, for example, 0V, so this output signal is applied to the negative input terminal of the differential amplifier 12, and the discharge state is detected. By comparing the condition with the reference value E 1 , the motor 14 is rotated and the electrode 10 is sent by the ball screw 17 so as to approach the grinding wheel 1 . Electrode 10 and grindstone 1 (to be exact, metal bond part 1b)
When the gap length becomes short enough to generate an electric discharge, an arc discharge occurs, which causes the metal bond part 1 to
The outer peripheral surface portion a is removed by electric discharge machining from the front side.
Due to the characteristics of discharge, the length of the gap at which discharge occurs increases as the amount of conductive particles 25a in the discharge gap increases, as shown in FIG. That is, the conductive particles 25a
By mixing the grinding fluid 3a with the grinding fluid 3a in the gap between the electrode 10 and the grindstone 1, discharge dressing becomes easy. Therefore, in the present invention, the discharge accelerating material 25 made of a conductive material is disposed so as to be able to move toward and away from the grinding surface of the grinding wheel 1, and the material is made of a material that is relatively easy to grind, such as graphite. Aite electrode material is good. The pressing force of the discharge promoting material 25 against the grinding surface of the grinding wheel 1 during discharge dressing is determined by the output signal from the discharge state detection circuit 11 being applied to the negative input terminal of the differential amplifier 20, and the reference value of the discharge state is determined.
It is compared with E 2 and the difference voltage is applied to drive amplifier 2.
1, the power is amplified, rotates the motor 22, and is adjusted by changing the position of the screw 23.
次に、上記放電状態検出回路１１の具体例を第
３図に基づき説明する。第３図において、第１図
と同一符号は同一部分を示す。また１１ａ，１１
ｂは電極１０と砥石１１との間の電圧を、検出回
路１１を構成する後述各回路を破損しない程度に
低減するための分圧抵抗、１１ｃは比較増幅器、
１１ｄはANDゲート回路、１１ｅはＤ形フリツ
プフロツプを示す。さらに１１ｆはタイミングパ
ルス発生回路、１１ｇは積分用抵抗、１１ｈは積
分用コンデンサ、１１ｉは出力端子を示すもの
で、以下このような検出回路１１の動作を第４図
に示したタイムチヤートを参照しつつ説明する。
まず砥石１と電極１０の間には、第４図の波形Ｅ
に示すようなパルス電圧が印加され、検出回路１
１には波形Egapに示す電圧が入力される。ここ
で、ａは無放電状態、ｂは正常な放電状態、ｃは
異常放電状態、ｄは砥石１と電極１０とが短絡し
た状態での各波形Egapを示している。 Next, a specific example of the discharge state detection circuit 11 will be explained based on FIG. 3. In FIG. 3, the same reference numerals as in FIG. 1 indicate the same parts. Also 11a, 11
11c is a comparator amplifier;
11d is an AND gate circuit, and 11e is a D-type flip-flop. Furthermore, 11f is a timing pulse generation circuit, 11g is an integrating resistor, 11h is an integrating capacitor, and 11i is an output terminal.The operation of the detection circuit 11 will be described below with reference to the time chart shown in FIG. I will explain.
First, between the grinding wheel 1 and the electrode 10, the waveform E shown in FIG.
A pulse voltage as shown in is applied, and the detection circuit 1
1 is inputted with the voltage shown in the waveform Egap. Here, a shows each waveform Egap in a non-discharge state, b in a normal discharge state, c in an abnormal discharge state, and d in a state in which the grinding wheel 1 and the electrode 10 are short-circuited.
上記分圧抵抗１１ａ，１１ｂから得られる放電
波形Egapは比較増幅器１１ｃに与えられて基準
値E3と比較される。その比較増幅器１１ｃの出
力波形と波形Ｅに同期した波形をANDゲート回
路１１ｄに与えると波形Ｆが得られる。この波形
Ｆとタイミングパルス発生回路１１ｆからのタイ
ミングパルスT1とをＤ型フリツプフロツプ１１
ｅに与えることにより波形Ｇが得られる。この波
形Ｇの信号が放電状態（異常放電状態ｃと短絡状
態ｄを含む）検出信号であり、この検出信号は抵
抗１１ｇ及びコンデンサ１１ｈから成る積分回路
により平滑化されることによりその直流平均値が
出力端子１０８から出力されるようになつてい
る。実際上は、波形Egapにおいてａ，ｂ，ｃ，
ｄの各状態は時間的に不規則に入り混じつている
ため、実験により前記基準値E2の値を設定し、
電極１０と砥石１の間で放電が容易に発生するよ
う放電促進材２５の圧接力（砥石１の研削面への
接触圧）の調整が行われる。 The discharge waveform Egap obtained from the voltage dividing resistors 11a and 11b is provided to a comparator amplifier 11c and compared with a reference value E3 . When the output waveform of the comparison amplifier 11c and a waveform synchronized with the waveform E are applied to the AND gate circuit 11d, a waveform F is obtained. This waveform F and the timing pulse T1 from the timing pulse generation circuit 11f are connected to a D-type flip-flop 11.
Waveform G can be obtained by applying it to e. The signal of this waveform G is a discharge state (including abnormal discharge state c and short circuit state d) detection signal, and this detection signal is smoothed by an integrating circuit consisting of a resistor 11g and a capacitor 11h, so that its DC average value is The signal is output from the output terminal 108. Actually, in the waveform Egap, a, b, c,
Since each state of d is mixed irregularly in time, the value of the reference value E 2 is set by experiment,
The pressure contact force (contact pressure to the grinding surface of the grindstone 1) of the discharge promoting material 25 is adjusted so that discharge can easily occur between the electrode 10 and the grindstone 1.
異常述べたように本発明は、導電性物質からな
る放電促進材を砥石研削面に接触させてその研削
面に付着した研削液中に混入させ、放電間隙中に
介在させるようにしたので、被研削物が例えばセ
ラミツクなどの絶縁物であつても、またダイヤモ
ンド砥粒の大きな荒加工用の砥石でも、放電が促
進されることになり、ドレツシングの高能率化を
計ることができるという効果がある。
Abnormality As mentioned above, in the present invention, the discharge promoting material made of a conductive substance is brought into contact with the grinding surface of the whetstone and mixed into the grinding liquid adhering to the grinding surface, so that it is interposed in the discharge gap. Even if the object to be ground is an insulating material such as ceramic, or a grindstone for rough machining with large diamond abrasive grains, electrical discharge will be promoted and the dressing will be more efficient. .
第１図は本発明装置の一実施例の全体構成図、
第２図は第１図中の砥石の部分拡大断面図、第３
図は同じく放電状態検出回路の具体例例を示すブ
ロツク図、第４図は同上回路の動作を説明するた
めのタイムチヤートである。
１……メタルボンドダイヤモンド砥石、１ａ…
…ダイヤモンド砥粒、１ｂ……メタルボンド部、
２……被加工物、３……研削液供給用ノズル、３
ａ……研削液、４……フランジ、８……パルス電
源、９……ブラシ、１０……電極、２５……放電
促進材、２５ａ……導電性粒子。
FIG. 1 is an overall configuration diagram of an embodiment of the device of the present invention;
Figure 2 is a partial enlarged sectional view of the grindstone in Figure 1,
The same figure is a block diagram showing a specific example of the discharge state detection circuit, and FIG. 4 is a time chart for explaining the operation of the same circuit. 1...Metal bond diamond whetstone, 1a...
...Diamond abrasive grain, 1b...Metal bond part,
2...Workpiece, 3...Grinding fluid supply nozzle, 3
a... Grinding fluid, 4... Flange, 8... Pulse power source, 9... Brush, 10... Electrode, 25... Discharge promoting material, 25a... Conductive particles.
Claims (1)
削面とこの研削面に対向配置された電極との間に
研削液を供給しつつアーク放電を発生させて前記
砥石をドレツシングする装置において、前記研削
面に接触させることによりその研削面上に付着し
た前記研削液中に導電性粒子を混入させる導電性
物質からなる放電促進材を前記研削面に接離自在
に設けたことを特徴とするメタルボンドダイヤモ
ンド砥石の放電ドレツシング装置。 ２ 前記放電促進材は前記研削面への接触圧が調
整可能に支持構成されたことを特徴とする特許請
求の範囲第１項記載の放電ドレツシング装置。[Scope of Claims] 1. A device for dressing the grinding wheel by generating arc discharge while supplying a grinding liquid between the grinding surface of a rotating metal bonded diamond grinding wheel and an electrode placed opposite to the grinding surface, A discharge promoting material made of a conductive substance that mixes conductive particles into the grinding liquid adhering to the grinding surface by contacting the grinding surface is provided on the grinding surface so as to be able to come into contact with and separate from the grinding surface. Electric discharge dressing device for metal bond diamond grinding wheels. 2. The discharge dressing device according to claim 1, wherein the discharge promoting material is supported so that the contact pressure to the grinding surface can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18168485A JPS6244374A (en) | 1985-08-21 | 1985-08-21 | Electro-discharge dresser for metal-bonded diamond grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18168485A JPS6244374A (en) | 1985-08-21 | 1985-08-21 | Electro-discharge dresser for metal-bonded diamond grinding wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6244374A JPS6244374A (en) | 1987-02-26 |
| JPH052461B2 true JPH052461B2 (en) | 1993-01-12 |
Family
ID=16105063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18168485A Granted JPS6244374A (en) | 1985-08-21 | 1985-08-21 | Electro-discharge dresser for metal-bonded diamond grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6244374A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01153272A (en) * | 1987-12-04 | 1989-06-15 | Sintokogio Ltd | Forming method for electrode of discharge dressing |
| JPH03123670U (en) * | 1990-03-29 | 1991-12-16 | ||
| CN108406600B (en) * | 2018-03-28 | 2020-11-03 | 洛阳立博数控科技有限公司 | Method for grinding wheel by electrolyzing small roller of online dressing bearing by dressing device |
| CN108818310B (en) * | 2018-06-22 | 2020-05-22 | 华南理工大学 | Online accurate control method for micro-scale abrasive particle leveling parameters |
-
1985
- 1985-08-21 JP JP18168485A patent/JPS6244374A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6244374A (en) | 1987-02-26 |
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