JPH0224610Y2 - - Google Patents
Info
- Publication number
- JPH0224610Y2 JPH0224610Y2 JP1986164060U JP16406086U JPH0224610Y2 JP H0224610 Y2 JPH0224610 Y2 JP H0224610Y2 JP 1986164060 U JP1986164060 U JP 1986164060U JP 16406086 U JP16406086 U JP 16406086U JP H0224610 Y2 JPH0224610 Y2 JP H0224610Y2
- Authority
- JP
- Japan
- Prior art keywords
- diamond tool
- grinding wheel
- axis
- grindstone
- diamond
- 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
Links
- 229910003460 diamond Inorganic materials 0.000 claims description 62
- 239000010432 diamond Substances 0.000 claims description 62
- 238000001514 detection method Methods 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は研削盤の改良されたNC砥石修正装置
に関する。[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improved NC grinding wheel correction device for a grinding machine.
従来技術
従来、知られている研削盤の砥石修正装置はダ
イヤモンド工具の取付角度は砥石軸に対して一般
には30゜傾斜されていて一定であるものが使用さ
れている。また実開昭60−39455号のようにダイ
ヤモンド工具の取付角度を反転できるものが知ら
れているが自動で反転できるものでない。Prior Art Conventionally known grinding wheel correction devices for grinding machines have been used in which the mounting angle of the diamond tool is generally tilted at 30° with respect to the grinding wheel axis and is constant. In addition, there is a known tool such as Utility Model Application No. 60-39455 that can reverse the mounting angle of a diamond tool, but it cannot be reversed automatically.
考案が解決しようとする問題点
ダイヤモンド工具の取付角度が一定のもの或い
は自動で反転できないものでは修正可能砥石形状
が第５図イのような形状に制限され第５図ロのよ
うな形状は修正不可能である。このため加工物形
状範囲が狭い問題があつた。またダイヤモンド工
具が砥石に接触した位置を正確に検出する手段を
有しないため接触点を確認できない場合特に正確
なドレツシング量をうることは困難であつた。Problems that the invention aims to solve: If the mounting angle of the diamond tool is constant or cannot be automatically reversed, the shape of the grindstone that can be corrected is limited to the shape shown in Figure 5 A, and the shape shown in Figure 5 B cannot be corrected. It's impossible. For this reason, there was a problem that the shape range of the workpiece was narrow. Furthermore, since there is no means for accurately detecting the position where the diamond tool contacts the grindstone, it has been difficult to obtain an accurate dressing amount especially when the contact point cannot be confirmed.
問題点を解決するための手段
切込台１１上に旋回可能に軸承され先端にダイ
ヤモンド工具２０を砥石軸心と平行な平面内で砥
石１の外周に向かつて傾斜して取付けたダイヤモ
ンド工具旋回割出軸２２と、該ダイヤモンド工具
旋回割出軸を180゜旋回させる駆動手段２５，２６
と、前記ダイヤモンド工具旋回割出軸２２をその
旋回端位置で固定するクランプ手段２７と、前記
ダイヤモンド工具旋回割出軸に付加されダイヤモ
ンド工具が砥石に接触した瞬間の現象を検出する
センサ３１とを備えてなるものである。Means for Solving the Problem A diamond tool turning splitter is rotatably supported on a cutting table 11 and has a diamond tool 20 at its tip inclined toward the outer periphery of the grinding wheel 1 in a plane parallel to the grinding wheel axis. Drive means 25 and 26 for rotating the output shaft 22 and the diamond tool rotation indexing shaft by 180 degrees.
, a clamping means 27 for fixing the diamond tool rotation indexing shaft 22 at its rotation end position, and a sensor 31 attached to the diamond tool rotation indexing shaft for detecting the phenomenon at the moment the diamond tool contacts the grindstone. It is something to be prepared for.
実施例
以下本考案の実施例を図面にもとづき説明す
る。周知の円筒研削盤において砥石１を先端に嵌
着した砥石軸を回転可能に軸承した砥石台２上の
砥石軸の後側に砥石軸と平行な２本の案内面３ａ
を有する修正台３が固設されている。この案内面
３ａにリニアベアリング４を介してトラバース台
５が載置され、トラバース台５は上面に砥石軸と
直角方向に２本の案内面５ａを有し修正台３上に
軸受によつて回転のみ可能に軸承されるとともに
サーボモータ６で駆動制御されるボールねじ７に
よつてトラバース送りされる。トラバース台５の
案内面５ａ上にはリニアベアリング８を介して移
動台９が載置されている。この移動台９上にもま
た砥石軸と直角方向の２本の案内面９ａが設けら
れており、この案内面９ａ上にリニアベアリング
１０を介して切込台１１が載置されている。切込
台１１は移動台９上に軸受によつて回転可能に軸
承されたサーボモータ１２で駆動制御されるボー
ルねじ１３によつて切込送りが与えられる。そし
て修正台３の上面後部に砥石軸と平行にテンプレ
ート取付台１４が修正台３上のブラケツト３ｂを
螺装した調整ボルト１５によつて砥石軸心との平
行度を調整可能に取付けられている。テンプレー
ト取付台１４には砥石と反対面が直線接触面であ
るテンプレート１６が固着され、このテンプレー
ト１６に対してフイーラ１７が移動台９の下面に
取付けられている。さらにテンプレート１６とフ
イーラ１７とを常時接触させるための移動台９の
前端に固着の当板９ａとトラバース台５の砥石側
端面との間にばね１８が介装されている。また切
込台１１上には砥石外周面に傾斜したダイヤモン
ド工具２０を有するダイヤモンドホルダ２１を取
替え可能に同心に固着したダイヤモンド工具旋回
割出軸２２が回転可能に砥石軸と直角方向に軸承
され、ダイヤモンド工具旋回割出軸２２はピニオ
ン２３が固定されていてラツク２４によつて180゜
旋回される。Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. In a well-known cylindrical grinding machine, two guide surfaces 3a parallel to the grinding wheel shaft are provided on the rear side of the grinding wheel shaft on the grinding wheel stand 2 which rotatably supports the grinding wheel shaft with the grinding wheel 1 fitted at the tip thereof.
A correction table 3 is fixedly installed. A traverse table 5 is placed on this guide surface 3a via a linear bearing 4, and the traverse table 5 has two guide surfaces 5a on the upper surface in a direction perpendicular to the grinding wheel axis, and is rotated by a bearing on the correction table 3. It is traversed by a ball screw 7 which is rotatably supported on a shaft and whose drive is controlled by a servo motor 6. A moving table 9 is placed on the guide surface 5a of the traverse table 5 via a linear bearing 8. Two guide surfaces 9a are also provided on the movable table 9 in a direction perpendicular to the grindstone axis, and a cutting table 11 is placed on the guide surfaces 9a via a linear bearing 10. The cutting table 11 is given cutting feed by a ball screw 13 that is driven and controlled by a servo motor 12 rotatably supported on the movable table 9 by a bearing. A template mount 14 is attached to the rear of the upper surface of the correction table 3 parallel to the grinding wheel axis so that its parallelism with the grinding wheel axis can be adjusted by means of an adjustment bolt 15 threaded through the bracket 3b on the correction table 3. . A template 16 whose surface opposite to the grindstone is a linear contact surface is fixed to the template mount 14, and a feeler 17 is attached to the lower surface of the movable table 9 with respect to the template 16. Further, a spring 18 is interposed between a contact plate 9a fixed to the front end of the movable table 9 and the end surface of the traverse table 5 on the grindstone side to keep the template 16 and the feeler 17 in constant contact. Further, on the cutting table 11, a diamond tool rotation indexing shaft 22 is rotatably supported in a direction perpendicular to the grinding wheel axis, and a diamond holder 21 having a diamond tool 20 inclined on the outer peripheral surface of the grinding wheel is fixed concentrically so as to be replaceable. A diamond tool rotation indexing shaft 22 has a pinion 23 fixed thereto and is rotated by a rack 24 through 180 degrees.
このラツク２４は切込台１１にダイヤモンド工
具旋回割出軸２２と直角方向に形成された油圧シ
リンダ２５に嵌装されたピストン２６に外周軸方
向に刻設されている。油圧シリンダ２５は両側の
室に油路２５ａ，２５ｂが開口しており切換弁を
介して油圧源とタンクにそれぞれ接続されてい
る。さらにダイヤモンド工具旋回割出軸２２の２
個所の軸受の中間位置に油圧拡張ブシユ２７が僅
かの隙間で嵌装されている。この油圧拡張ブシユ
２７は外周部に環状ぬすみを削設して中央部を薄
肉部として切込台１１に環状ぬすみの部分が油溜
まりとなるようにし且つ両端のＯリングで油もれ
のないように密嵌されこの環状ぬすみに油路２７
ａが開口していて油路２７ａは切換弁を介して油
圧源に接続されている。さらに砥石１の図示しな
い固定カバーにダイヤモンド工具２０の先端位置
を検出するタツチ信号を出力するタツチセンサ２
８が設けられており、このタツチセンサ２８はダ
イヤモンド工具２０の切込みXB方向及びこの方
向と直角ZB方向の＋方向、一方向の三方向のダ
イヤモンド刃先の位置を検出できるよう３検出面
を有するものである。さらにまたダイヤモンド工
具旋回割出軸２２の後端は切込台１１に固定され
た振動伝達筒２９にオイルレス軸受を介して軸承
されており、この振動伝達筒２９の後端にカツプ
状の検出器取付筒３０が締着されている。そして
検出器取付筒３０内にダイヤモンド工具２０先端
と砥石１との接触を検知して信号を出力するセン
サ３１が内蔵され、ばね３２によつてセンサ３１
が振動伝達筒の後端に圧接されている。センサ３
１はダイヤモンド工具２０が砥石１に接触したと
き超音波エネルギーを検知してその出力信号を増
幅後弁別部で接触音のみ通過させ検波部にて直流
レベルに変換し可変増巾部にて接触レベルに増巾
して比較部にて接触レベルに達したか否かの信号
を作りそのレベルに達したとき接触信号を制御装
置に出力する。 The rack 24 is engraved in the direction of the outer circumferential axis of a piston 26 fitted in a hydraulic cylinder 25 formed on the cutting table 11 in a direction perpendicular to the diamond tool rotation indexing shaft 22. The hydraulic cylinder 25 has oil passages 25a and 25b opened in chambers on both sides, and is connected to a hydraulic power source and a tank via switching valves, respectively. Furthermore, 2 of the diamond tool rotation indexing shaft 22
Hydraulic expansion bushings 27 are fitted at intermediate positions between the bearings with slight gaps. This hydraulic expansion bushing 27 has an annular recess cut out on the outer periphery so that the central part is a thinner part so that the annular recess becomes an oil reservoir on the cutting table 11, and O-rings at both ends prevent oil leakage. The oil passage 27 is tightly fitted into this annular slot.
a is open, and the oil passage 27a is connected to a hydraulic power source via a switching valve. Furthermore, a touch sensor 2 outputs a touch signal to detect the tip position of the diamond tool 20 to a fixed cover (not shown) of the grinding wheel 1.
8 is provided, and this touch sensor 28 has three detection surfaces so that it can detect the position of the diamond cutting edge in three directions: the cutting XB direction of the diamond tool 20, the + direction of the ZB direction perpendicular to this direction, and one direction. be. Furthermore, the rear end of the diamond tool rotation indexing shaft 22 is supported via an oilless bearing on a vibration transmission tube 29 fixed to the cutting table 11, and a cup-shaped detection tube is attached to the rear end of the vibration transmission tube 29. The container mounting tube 30 is fastened. A sensor 31 that detects the contact between the tip of the diamond tool 20 and the grinding wheel 1 and outputs a signal is built into the detector mounting tube 30.
is pressed against the rear end of the vibration transmission cylinder. sensor 3
1 detects ultrasonic energy when the diamond tool 20 contacts the grinding wheel 1, amplifies the output signal, passes only the contact sound in the discrimination section, converts it to a DC level in the detection section, and converts it to the contact level in the variable amplification section. The comparator generates a signal indicating whether or not the contact level has been reached, and when the contact level is reached, the contact signal is output to the control device.
次ぎにダイヤ先端位置の１方向について表した
ダイヤ摩耗補正、ダイヤ異常を検出を示す第４図
のブロツク線図において、４１はNC装置に内蔵
した記憶回路でダイヤモンド工具２０を取付けた
ときその刃先をタツチセンサ２８に接触させたと
きのXB軸（ダイヤモンド切込方向）座標値を初
期値XB1として入力し、ドレツシング後にダイヤ
モンド工具２０の刃先をタツチセンサ２８に同様
に接触させたときのXB軸座標値（ドレツシング
毎に更新）XB2を入力し、またダイヤモンド工具
の摩耗補正量を決める設定値XB3を入力し、さら
にダイヤモンド工具の異常摩耗、欠損等の判定す
る設定値XB4を入力する。４２は演算回路４２で
記憶回路４１に記憶したXB1，XB2よりXB2−
XB1を演算する。４３は比較判定回路で演算回路
４２の演算値XB0に対し補正の設定値XB3または
異常判定の設定値XB4とを比較する。XB0≧XB4
であれば異常として表示するとともに本機の停止
指令を出す。XB0≧XB3であれば補正量XB0を出
力するとともに初期値XB1をXB2の値に更新して
次ぎの更新まではこのXB2がXB1となる。XB0＜
XB3であれば修正サイクルが続行される。４４は
ダイヤモンド切込量補正回路で補正量XB0で切込
量を補正しし修正サイクルを続行する。 Next, in the block diagram of FIG. 4 showing the diamond wear correction and diamond abnormality detection expressed in one direction of the diamond tip position, 41 is a memory circuit built into the NC device, and when the diamond tool 20 is installed, the cutting edge is Input the XB axis (diamond cutting direction) coordinate value when touching the touch sensor 28 as the initial value XB 1 , and input the XB axis coordinate value ( Enter XB 2 (updated each time dressing), enter the setting value XB 3 that determines the wear compensation amount of the diamond tool, and enter the setting value XB 4 that determines abnormal wear, chipping, etc. of the diamond tool. 42 is an arithmetic circuit 42 which calculates XB 2 − from XB 1 and XB 2 stored in the storage circuit 41.
Calculate XB 1 . Reference numeral 43 denotes a comparison/determination circuit that compares the calculated value XB 0 of the arithmetic circuit 42 with a correction set value XB 3 or an abnormality determination set value XB 4 . XB 0 ≧XB 4
If so, it will be displayed as an error and a command to stop the machine will be issued. If XB 0 ≧XB 3 , the correction amount XB 0 is output, and the initial value XB 1 is updated to the value of XB 2 , and this XB 2 becomes XB 1 until the next update. XB 0 <
For XB 3 , the modification cycle continues. 44 is a diamond depth of cut correction circuit which corrects the depth of cut with a correction amount XB 0 and continues the correction cycle.
作 用
今ダイヤモンド工具２０は第１図のように傾斜
してクランプされ待期しており、第５図ロのａの
形に砥石を修正するべくその形状が図示しない
NC装置の記憶回路にダイヤモンド工具２０の切
込方向XB軸、トラバース方向ZB軸の座標値とし
て記憶されている。またダイヤモンド工具が取付
けられた時、切込台１１のXB軸方向に移動させ
刃先位置が砥石とに接触したことをセンサ３１で
検出してNC装置に記憶させておきこの位置をも
とにして切込送りを行えるようにしておく。切込
台１１が後退位置、トラバース台５を左端（第２
図）位置に待期している修正装置に砥石修正の指
令が出ると、サーボモータ１２が制御回転されボ
ールねじ１３によつて切込台１１が前進送りさ
れ、NC装置で指令されたXB位置、ZB位置の砥
石１のＲ面の横に位置決めされる。サーボモータ
６が制御回転されボールねじ７によつてトラバー
ス台５がZB方向に送られダイヤモンド工具２０
が砥石１と接触する位置でXB軸方向の送りが加
えられて合成運動により左Ｒ面をドレツシング
し、次いでZB方向の送りで外周を中央まで直線
にドレツシングする。この位置でXB軸一方向の
送りで一旦ダイヤモンド工具２０を後退させる。
油圧シリンダ２５の圧油方向を切換え、ピストン
２６を移動させてラツク２４、ピニオン２３を介
してダイヤモンド工具旋回割出軸２２を180゜反転
させてダイヤモンド工具２０を第１図と反対向き
とする。次いでZB軸一方向に少し戻したあとXB
軸の＋方向に送り前のXB位置に位置決めする。
次いでZB軸方向＋方向に送つて外周直線部をド
レツシングし、所定位置でXB軸＋方向の送りが
加えられて合成運動で右Ｒ面のドレツシングを行
う。次ぎにZB軸＋方向のみの送りで砥石よりダ
イヤモンド工具２０を離しXB軸−方向送りで後
退ZB軸−方向、次いでXB軸＋方向で初めの位置
に戻しXB軸切込送りを与えて同様に数回繰り返
す。トラバース台５のトラバースとともに移動台
９はともにトラバース送りが行われトラバース台
５がボールねじ、リニアベアリングのボールの僅
かの不円滑に起因するウエービング現象がおこ
る。しかし移動台９はトラバース台５上で砥石半
径方向に軽く摺動可能にリニアベアリングで載置
案内され且つフイーラ１７がテンプレート１６の
真直な接触面に接触しているためトラバース台５
のウエービング状のふらつきの動きに追従するこ
となく真直に移動する。従つてダイヤモンド工具
２０は砥石１の外周巾方向を真直に且つ正しい両
Ｒ面に修正される。Function The diamond tool 20 is currently clamped at an angle as shown in Fig. 1, and the grindstone is to be corrected to the shape a in Fig. 5 (b), the shape of which is not shown.
These are stored in the memory circuit of the NC device as coordinate values of the XB axis in the cutting direction and the ZB axis in the traverse direction of the diamond tool 20. Furthermore, when the diamond tool is installed, it is moved in the XB-axis direction of the cutting table 11, and the sensor 31 detects that the cutting edge position has come into contact with the grindstone, and this is stored in the NC device. Make it possible to perform cutting feed. The cutting table 11 is in the retreat position, and the traverse table 5 is at the left end (second
Figure) When a command to correct the grinding wheel is given to the correction device waiting for the position, the servo motor 12 is controlled to rotate, the ball screw 13 moves the cutting table 11 forward, and the XB position specified by the NC device is adjusted. It is positioned next to the R surface of the grindstone 1 at the ZB position. The servo motor 6 is rotated under control, and the traverse table 5 is sent in the ZB direction by the ball screw 7, and the diamond tool 20
At the position where the grinding wheel contacts the grinding wheel 1, a feed in the XB axis direction is applied to dress the left R surface by the combined movement, and then a feed in the ZB direction dresses the outer periphery in a straight line to the center. At this position, the diamond tool 20 is temporarily moved back by feeding in one direction along the XB axis.
The direction of the pressure oil in the hydraulic cylinder 25 is changed, the piston 26 is moved, and the diamond tool rotation indexing shaft 22 is reversed by 180 degrees via the rack 24 and pinion 23, so that the diamond tool 20 is oriented in the opposite direction to that shown in FIG. Then, after returning the ZB axis a little in one direction,
Position in the + direction of the axis at the XB position before feeding.
Next, it is fed in the + direction of the ZB axis to dress the outer circumferential linear portion, and at a predetermined position, feed in the + direction of the XB axis is applied to dress the right R surface with a combined movement. Next, release the diamond tool 20 from the grinding wheel by feeding only in the ZB-axis + direction, move back in the ZB-axis - direction by feeding in the - direction of the XB-axis, then return it to the initial position in the + direction of the Repeat several times. As the traverse table 5 traverses, the movable table 9 is also traverse-fed, and the traverse table 5 undergoes a waving phenomenon due to slight irregularities in the balls of the ball screw and linear bearing. However, since the moving table 9 is mounted and guided by a linear bearing so as to be able to slide lightly in the radial direction of the grindstone on the traverse table 5, and the feeler 17 is in contact with the straight contact surface of the template 16, the traverse table 5
It moves straight without following the waving-like wobbling movements of the robot. Therefore, the diamond tool 20 is corrected so that the outer circumferential width direction of the grindstone 1 is straight and both R surfaces are correct.
このように修正が行われるが修正によりダイヤ
モンド工具２０は僅かづつ摩耗していく。この摩
耗量が規定量以上となると仕上精度に影響する。
またダイヤモンド先端に欠けが発生するとただし
い修正ができない。このためダイヤモンド工具２
０の摩耗補正、ダイヤモンドの異常検出を行う。
この動作を第４図を参照して説明する。 Although the correction is performed in this way, the diamond tool 20 gradually wears out due to the correction. If this amount of wear exceeds a specified amount, finishing accuracy will be affected.
Also, if the tip of the diamond becomes chipped, it cannot be corrected properly. For this reason, diamond tool 2
0 wear correction and diamond abnormality detection.
This operation will be explained with reference to FIG.
ダイヤモンド工具２０をダイヤモンドホルダ２
１に最初取付けた時、先ず切込台１１をXB軸送
りして砥石１に接触した瞬間をセンサ３１で検出
してダイヤモンド工具２０と砥石１との関係位置
を記憶し切込みの起点とする。次いで切込台１１
をZB軸、XB軸送りしてタツチセンサ２８にXB
軸方向に当接させ、タツチ信号出力時のVB座標
値をNC装置の記憶回路４１に初期値として記憶
させる。次いでZB軸＋方向にタツチセンサ２８
のタツチ信号出力時にZB座標値、ダイヤモンド
工具２０を180゜反転してZB軸一方向にタツチセ
ンサ２８のタツチ信号出力時のZB座標値をそれ
ぞれに記憶回路４１に初期値として記憶させる。
このように３方向のダイヤモンド工具の刃先位置
を検出するが３方向とも同じ検出制御が行われる
のでXB方向について説明する。 Diamond tool 20 is attached to diamond holder 2
1, the cutting table 11 is first moved along the XB axis, and the sensor 31 detects the moment of contact with the grinding wheel 1, and the relative position between the diamond tool 20 and the grinding wheel 1 is memorized and used as the starting point of the cut. Next, the cutting table 11
is sent to the ZB axis and XB axis, and the XB is sent to the touch sensor 28.
They are brought into contact in the axial direction, and the VB coordinate value at the time of outputting the touch signal is stored as an initial value in the memory circuit 41 of the NC device. Next, move the touch sensor 28 in the ZB axis + direction.
The ZB coordinate value when the touch signal is output from the touch sensor 28, and the ZB coordinate value when the touch sensor 28 outputs the touch signal in one direction of the ZB axis by inverting the diamond tool 20 by 180 degrees are respectively stored in the storage circuit 41 as initial values.
In this way, the position of the cutting edge of the diamond tool is detected in three directions, and since the same detection control is performed in all three directions, the XB direction will be explained.
初期値としてXB1が、またドレツシング後常に
同様にダイヤモンド工具２０の刃先位置をXB2と
して記憶され最も新しい値に更新されていく。ド
レツシングする毎に演算回路４２ではXB2−XB1
の演算が行われ演算値XB0を比較判定回路に入力
して記憶回路４１の記憶した補正量の設定値XB3
と比較するXB0＜XB3のとき正常とし修正サイク
ルを続行する。XB0≧XB3のとき記憶回路４１の
初期値XB1を更新してドレツシングの最も新しい
値XB2をXB1とするとともに補正回路４４でダイ
ヤモンド工具のNC装置の切込量をXB0分補正修
正サイクルを続行する。XB0≧XB4であれば異常
として表示し本機の運転を停止させる。 The initial value is XB 1 , and after dressing, the cutting edge position of the diamond tool 20 is stored as XB 2 and updated to the latest value. Each time the dressing is performed, the arithmetic circuit 42 calculates XB 2 −XB 1
The calculation is performed, and the calculated value XB 0 is input to the comparison/judgment circuit, and the set value XB 3 of the correction amount stored in the storage circuit 41 is obtained.
When compared with XB 0 < XB 3 , it is considered normal and the correction cycle continues. When XB 0 ≧ XB 3 , the initial value XB 1 in the memory circuit 41 is updated to set the latest dressing value XB 2 to XB 1 , and the correction circuit 44 corrects the depth of cut of the diamond tool's NC device by XB 0 . Continue the fix cycle. If XB 0 ≧XB 4 , it will be displayed as an error and the machine will stop operating.
効 果
以上詳述したように本考案はダイヤモンド工具
を砥石外周に対して傾斜して取付けてダイヤモン
ド割出回転軸を駆動装置で180゜反転可能に設けた
ので、ダイヤモンド工具の取付角度を反転し且そ
れを自動で行わなければ修正できない複雑な形状
の砥石、逆方向の段差の修正が連続した行程で可
能となり各種工作物への対応が容易となる。また
ダイヤモンド工具の砥石接触位置が検出できるの
で接触位置を確認できない場合においても正確な
砥石修正量がえられる効果を有する。Effects As detailed above, in the present invention, the diamond tool is mounted at an angle to the outer periphery of the grinding wheel, and the diamond indexing rotation axis is provided so that it can be rotated 180 degrees using a drive device, so the mounting angle of the diamond tool can be reversed. In addition, it is possible to correct complex-shaped grindstones that cannot be corrected unless done automatically, and correction of steps in the opposite direction in a continuous process, making it easier to handle various workpieces. Furthermore, since the contact position of the diamond tool with the grindstone can be detected, it is possible to obtain an accurate correction amount of the grindstone even when the contact position cannot be confirmed.
第１図は砥石修正装置の砥石半径方向の断面
図、第２図は同装置の砥石軸方向の断面図、第３
図は第１図のＡ−Ａ線断面図、第４図はダイヤモ
ンド工具刃先の摩耗補正、並びに異常検出のブロ
ツク線図、第５図は砥石のドレツシング例を示す
図である。
３……修正台、５……トラバース台、９……移
動台、１１……切込台、２０……ダイヤモンド工
具、２２……ダイヤモンド工具旋回割出軸、２３
……ピニオン、２４……ラツク、２５……シリン
ダ、２６……ピストン、２７……油圧拡張ブシ
ユ。
Fig. 1 is a sectional view of the grinding wheel correction device in the radial direction of the grinding wheel, Fig. 2 is a sectional view of the same device in the axial direction of the grinding wheel, and Fig. 3 is a sectional view of the grinding wheel correction device in the radial direction of the grinding wheel.
The figures are a cross-sectional view taken along the line A--A in Fig. 1, Fig. 4 is a block diagram of wear correction and abnormality detection of the cutting edge of a diamond tool, and Fig. 5 is a diagram showing an example of dressing of a grindstone. 3... Correction table, 5... Traverse table, 9... Moving table, 11... Cutting table, 20... Diamond tool, 22... Diamond tool rotation indexing shaft, 23
...Pinion, 24...Rack, 25...Cylinder, 26...Piston, 27...Hydraulic expansion bush.
Claims (1)
ヤモンド工具２０を砥石軸心と平行な平面内で砥
石外周に向かつて傾斜して取付けたダイヤモンド
工具旋回割出軸２２と、該ダイヤモンド工具旋回
割出軸を180゜旋回させる駆動手段２３，２４，２
５，２６と、前記ダイヤモンド工具旋回割出軸を
その旋回端位置で固定するクランプ手段２７と、
前記ダイヤモンド工具旋回割出軸に付加されダイ
ヤモンド工具が砥石に接触した瞬間の現象を検出
するセンサ３１とを備えてなることを特徴とする
NC砥石修正装置。 A diamond tool rotation indexing shaft 22 is rotatably supported on the cutting table 11 and has a diamond tool 20 attached to its tip inclined toward the outer circumference of the grindstone in a plane parallel to the grindstone axis; Drive means 23, 24, 2 for rotating the output shaft by 180°
5, 26, and a clamping means 27 for fixing the diamond tool rotation indexing shaft at its rotation end position;
The present invention is characterized by comprising a sensor 31 that is attached to the diamond tool rotation indexing shaft and detects the phenomenon at the moment when the diamond tool contacts the grindstone.
NC grinding wheel correction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986164060U JPH0224610Y2 (en) | 1986-10-24 | 1986-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986164060U JPH0224610Y2 (en) | 1986-10-24 | 1986-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6370865U JPS6370865U (en) | 1988-05-12 |
| JPH0224610Y2 true JPH0224610Y2 (en) | 1990-07-05 |
Family
ID=31092829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986164060U Expired JPH0224610Y2 (en) | 1986-10-24 | 1986-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0224610Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3707775C2 (en) * | 1987-03-11 | 1996-03-07 | Jung Gmbh K | CNC-controlled grinding machine with a dressing device |
| JP2009095949A (en) * | 2007-10-18 | 2009-05-07 | Toyo Advanced Technologies Co Ltd | Dressing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039455B2 (en) * | 1980-10-15 | 1985-09-06 | 日立造船株式会社 | Mold for continuous casting equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039455U (en) * | 1983-08-27 | 1985-03-19 | トヨタ自動車株式会社 | Dresser fixing jig |
-
1986
- 1986-10-24 JP JP1986164060U patent/JPH0224610Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039455B2 (en) * | 1980-10-15 | 1985-09-06 | 日立造船株式会社 | Mold for continuous casting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6370865U (en) | 1988-05-12 |
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