JPS63169258A - Automatic form compensating method in spherical grinding and device thereof - Google Patents
Automatic form compensating method in spherical grinding and device thereofInfo
- Publication number
- JPS63169258A JPS63169258A JP31214186A JP31214186A JPS63169258A JP S63169258 A JPS63169258 A JP S63169258A JP 31214186 A JP31214186 A JP 31214186A JP 31214186 A JP31214186 A JP 31214186A JP S63169258 A JPS63169258 A JP S63169258A
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- lens
- spherical
- data
- workpiece
- 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 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 description 11
- 239000010432 diamond Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は硬脆材料等の球面研削における形状補正方法お
よび装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a shape correction method and apparatus for spherical grinding of hard and brittle materials.
従来の技術
従来よりレンズ加工においてレンズ形状を測定し補正す
る作業は殆んど手作業で行なわれているが、近年、加工
工程の自動化進展は著しく、レンズ形状の測定と補正の
行程を含めた全自動球面研削加工法を実現することが求
められている。Conventional technology Traditionally, most of the work to measure and correct the lens shape in lens processing has been done manually, but in recent years there has been significant progress in automation of the processing process, including the process of measuring and correcting the lens shape. There is a need to realize a fully automatic spherical grinding process.
以下図面を参照しながら、上述した従来の球面レンズ研
削加工法の一例について説明する。An example of the conventional spherical lens grinding method described above will be described below with reference to the drawings.
第４図、第６図は従来の加工装置と形状測定器を示すも
のであり、第４図においてコレットチャック１にクラン
プされ回転スピンドル２に取り付けられ低速で回転され
るレンズ３が、傾斜ス２イ転するダイヤモンド砥石７に
対して、駆動モーター８により送り込まれ、所定の曲率
半径の球面に研削加工されろうまた第５図において、９
はレンズの曲率精度測定器、１０はレンズの中心肉厚測
定器である。4 and 6 show a conventional processing device and a shape measuring device. In FIG. 4, a lens 3, which is clamped to a collet chuck 1, attached to a rotary spindle 2, and rotated at low speed, is mounted on an inclined shaft 2. The rotating diamond grinding wheel 7 is fed by a drive motor 8 and is ground into a spherical surface with a predetermined radius of curvature.
10 is a lens curvature accuracy measuring device, and 10 is a lens center thickness measuring device.
以上のように構成されたレンズの研削加工装置と形状測
定器について以下その動作について説明する。The operation of the lens grinding device and shape measuring device configured as described above will be explained below.
まず、ガラス素材は作業者が手でコレットチャック１へ
持ち込むか、あるいはオートローダ−等にて自動的に持
ち込み保持され、駆動モーター８により、高速回転する
ダイヤモンド砥石７に対して送り込まれる。加工された
レンズ３は、作業者が手あるいはオートローダ−等にて
自動的にコレットチャック１から取シ出し、曲率精度測
定器９のエッヂをレンズ３の表面に接触させた状態で測
定し、さらに中心肉厚測定器１ｏによりレンズ３を挾み
込んで測定する。実際には簡単のため基準球面原器によ
り、それとの比較測定を行ない、測定データを基に所定
の球面形状になるようにダイヤモンド砥石７を傾斜スラ
イド軸４および平行スライド軸６によって移動させ、ま
た、所定の中心肉厚になるようダイヤモンド砥石７に対
する送り量を調整している。First, a glass material is brought into the collet chuck 1 manually by an operator, or automatically brought in and held by an autoloader or the like, and is fed by a drive motor 8 to a diamond grindstone 7 rotating at high speed. The processed lens 3 is automatically taken out from the collet chuck 1 by an operator or with an autoloader, etc., and measured with the edge of the curvature accuracy measuring device 9 in contact with the surface of the lens 3. The center thickness measuring device 1o is used to insert the lens 3 and measure it. In practice, for simplicity, comparative measurements are performed using a standard spherical prototype, and based on the measurement data, the diamond grinding wheel 7 is moved by the inclined slide shaft 4 and the parallel slide shaft 6 so that a predetermined spherical shape is obtained. , the amount of feed to the diamond grindstone 7 is adjusted so that a predetermined center thickness is achieved.
発明が解決しようとする問題点
しかしながら上記のような構成・動作では、レンズ３の
取付け・取はずし、球面加工および形状誤差を測定し補
正する操作を数回繰り返すといった複雑な作業となシ、
作業者の経験と技能に頼っており、多大の時間と労力を
費やし生産性が極めて低いという問題点を有していた。Problems to be Solved by the Invention However, the above configuration and operation requires complicated operations such as attaching and detaching the lens 3, processing the spherical surface, and repeating the operations of measuring and correcting shape errors several times.
This method relies on the experience and skill of the worker, which requires a great deal of time and effort, resulting in extremely low productivity.
本発明は上記問題点に鑑み、砥石摩耗による球面形状と
中心肉厚の誤差を自動的に補正する方法およびその装置
を提供するものである。In view of the above problems, the present invention provides a method and apparatus for automatically correcting errors in the spherical shape and center wall thickness due to grindstone wear.
問題点を解決するための手段
上記問題点を解決するために本発明の第１の発明の球面
研削自動形状補正方法は、球面研削加工後のレンズ曲率
誤差あるいは中心肉厚誤差のいずれかを測定し、この測
定データから砥石摩耗量を類推し、所定のレンズ曲率あ
るいは中心肉厚に補正するという動作を行なうものであ
る。Means for Solving the Problems In order to solve the above problems, the first invention of the automatic shape correction method for spherical surface grinding of the present invention measures either the lens curvature error or the center thickness error after spherical surface grinding. However, the amount of wear on the grindstone is estimated from this measurement data, and the lens curvature or center thickness is corrected to a predetermined value.
また本発明の第２の発明の球面研削自動形状補正装置は
、被加工物を保持する保持具と、この保持具をチャッキ
ングし回転させるとともに被加工物を送り込む手段と、
前記被加工物を所定の球面形状に加工するよう所定の角
度傾斜するとともに横ずらしに配置される加工工具と、
前記保持具の送り速度を制御する制御部とからなる精密
球面研削装置２台と、スフェロリングと変位量測定器を
組み合わせてなる１対のレンズ形状測定装置と、その測
定データを取り込み演算処理するデータ処理部と、前記
データ処理部からの補正データより前記精密球面研削装
置の補正動作を制御する制御部とを備えたものである。Further, the automatic shape correction device for spherical grinding according to the second aspect of the present invention includes a holder for holding a workpiece, a means for chucking and rotating the holder, and a means for feeding the workpiece,
a processing tool tilted at a predetermined angle and disposed laterally so as to process the workpiece into a predetermined spherical shape;
Two precision spherical grinding devices consisting of a control unit that controls the feed speed of the holder, a pair of lens shape measuring devices that combine a spheror ring and a displacement measuring device, and the measurement data is taken in and processed by calculation. and a control section that controls correction operations of the precision spherical surface grinding device based on correction data from the data processing section.
作 用
本発明の第１の発明は上記した方法によって、球面研削
加工後のレンズ曲率誤差あるいは中心肉厚誤差のデータ
から砥石摩耗量を類推し、所定のレンズ曲率あるいは中
心肉厚に自動的に補正し管理するものである。Function The first invention of the present invention uses the method described above to estimate the amount of wear on the grinding wheel from the data of the lens curvature error or center wall thickness error after spherical grinding, and automatically adjusts the lens curvature or center wall thickness to a predetermined value. It is something to be corrected and managed.
また、本発明の第２の発明は上記した構成により、加工
されたレンズ形状を自動測定し、補正データを前記精密
球面研削装置にフィードバックすることにより球面研削
加工の全自動化を図るものである。Further, the second invention of the present invention aims at full automation of spherical surface grinding by automatically measuring the processed lens shape and feeding back correction data to the precision spherical surface grinding device using the above-described configuration.
実施例
以下、本発明の第１の実施例の球面研削自動形状補正方
法について図面を参照しながら説明する。EXAMPLE Hereinafter, an automatic shape correction method for spherical grinding according to a first example of the present invention will be described with reference to the drawings.
第１図に球面研削自動形状補正方法の概略を説明する流
れ図を示す。球面研削加工されたレンズは、レンズ形状
測定装置にてレンズ下面の曲率誤差ｄｈ１、レンズ上面
の曲率誤差ｄｈ２．中心肉厚誤差ｄｔが測定され、これ
らのデータはデータ処理部にて各々演算処理され補正デ
ータすなわちレンズ下面の曲率補正データｄＨ１，レン
ズ上面の曲率補正データｄＨ２、中心肉厚補正データｄ
Ｔを求め、また、砥石摩耗による中心肉厚誤差ｄｔ よ
りレンズ下面の粗研削用の曲率補正データｄＨ１１、レ
ンズ上面の粗研削用の曲率補正データｄＨ２１を類推す
る。ｈ、ｑ、ｔは各々補正データを求める関数である。FIG. 1 shows a flowchart outlining the automatic shape correction method for spherical grinding. The spherically ground lens was measured using a lens shape measuring device to determine the curvature error dh1 on the lower surface of the lens, the curvature error dh2 on the upper surface of the lens. The center thickness error dt is measured, and each of these data is processed by a data processing unit to produce correction data, that is, curvature correction data dH1 for the lower surface of the lens, curvature correction data dH2 for the upper surface of the lens, and center thickness correction data d.
T is determined, and curvature correction data dH11 for rough grinding of the lower surface of the lens and curvature correction data dH21 for rough grinding of the upper surface of the lens are estimated from the center thickness error dt due to grindstone wear. h, q, and t are functions for obtaining correction data.
次に、レンズ下面の曲率補正データｄＨ１，中心肉厚補
正データｄＴ、レンズ下面の粗研削用の曲率補正データ
ｄＨ１１が精密球面研削装置１にフィードバックされ、
粗研削用では加工工具補正傾斜角度Δθ１１．レンズ補
正送り量ΔＺ１１．また、精研削用ではレンズ補正送り
量ΔＺ１２だけ補正動作を行なう。精密球面研削装置２
には、ｄＨ２，ｄＴ。Next, the curvature correction data dH1 for the lower surface of the lens, the center thickness correction data dT, and the curvature correction data dH11 for rough grinding of the lower surface of the lens are fed back to the precision spherical grinding device 1,
For rough grinding, the machining tool correction inclination angle Δθ11. Lens correction feed amount ΔZ11. Further, for precision grinding, a correction operation is performed by a lens correction feed amount ΔZ12. Precision spherical grinding device 2
dH2, dT.
ｄＨ２１のデータがフィードバックされ同様に補正動作
を行なう。ｆは曲率補正データから加工工具の補正傾斜
角度を求める関数である。The data of dH21 is fed back and a similar correction operation is performed. f is a function for determining the corrected inclination angle of the processing tool from the curvature correction data.
第２図はデータ処理部の詳細な流れ図である。FIG. 2 is a detailed flowchart of the data processing section.
まず、レンズ形状測定装置からの測定データを取込み、
そのデータをチェックする。もし、データが正しくなけ
ればエラー表示を行ない再度データを取込む。データが
正しければ補正データを演算し、補正判定を行なう。補
正を行なう必要がなければ再度データを取込み、補正を
行なう必要があるならば、補正するデータが正しいかど
うかチェックを行なう。補正データが正しくなければエ
ラー表示を行ないデータ取込みに戻る。補正データか正
しければ、精密球面研削装置に補正データをフィードバ
ックし補正処理を行なった後にデータ取込みに戻る。First, import the measurement data from the lens shape measuring device,
Check that data. If the data is incorrect, an error message will be displayed and the data will be read again. If the data is correct, the correction data is calculated and a correction determination is made. If there is no need to perform correction, the data is captured again, and if correction is necessary, it is checked whether the data to be corrected is correct. If the correction data is incorrect, an error will be displayed and the process will return to data acquisition. If the correction data is correct, the correction data is fed back to the precision spherical grinding device, and after correction processing is performed, the process returns to data acquisition.
以上のように本実施例によれば、球面研削加工後のレン
ズ曲率誤差、中心肉厚誤差を自動測定し、補正データｄ
Ｈ１，ｄＨ２，ｄＴを求め、また、砥石摩耗量を類推し
曲率補正データｄＨ１１、ｄＨ２１を求め、精密球面研
削装置に自動フィードバックすることによシ、人による
労力を省くことができ、加工精度の信頼性および生産性
が向上し、連続自動加工が可能となる。As described above, according to this embodiment, the lens curvature error and center thickness error after spherical grinding are automatically measured, and the correction data d
By calculating H1, dH2, and dT, and calculating curvature correction data dH11 and dH21 by analogy with the amount of grinding wheel wear, and automatically feeding them back to the precision spherical grinding device, human labor can be saved and machining accuracy can be improved. Reliability and productivity are improved, and continuous automatic processing becomes possible.
以下本発明の第２の実施例の球面研削自動形状補正装置
について図面を参照しながら説明する。An automatic shape correction device for spherical grinding according to a second embodiment of the present invention will be described below with reference to the drawings.
第３図は球面研削臼、動形状補正装置の構成図を示すも
のである。第３図において、１１，１２゜２９．３０．
４９はレンズ、１３．３１は粗研削用ダイヤモンド砥石
、１４．３２は精研削用ダイヤモンド砥石で、回転スピ
ンドル１５，１６゜３３．３４に取り付けられ、１２０
０Ｏｒｐｍ〜３６０００ｒｐｍで高速回転する。６７．
５８，５９．６０は回転スピンドル１６，１６，３３，
３４を回転駆動する駆動モーターである。１７．１８，
３５゜３６は粗研削用ダイヤモンド砥石１３，３１．精
研削用ダイヤモンド砥石１４．３２をそれぞれ、所定の
曲率半径の球面が加工できるよう傾斜させる傾斜スライ
ド部であり、図示なき駆動モータにより所定の角度割り
出しを行いロックされる。また、１９，２０，３７．３
８も同様の各砥石位置をレンズの中心に砥石外周部が接
するよう設けるための平行スライド部であり、図示せぬ
駆動モーターで所定の位置へ割り出しロックされる。コ
レットチャック２１．２２，３９．４０は回転スピンド
ル２３，２４，４１．４２に取り付けられ、１０〜６０
ｒｐｍで回転する。レンズ１１，１２゜２９．３０は送
りスライド部２５，２６，４３゜４４によシ回転しなが
ら各砥石に対し送り込まれる。２７．４５はインデック
ステーブルであわ、回転モーター２８，４θにより回転
する。４７゜４８は各駆動部を制御する制御部である。FIG. 3 shows a configuration diagram of the spherical grinding mill and dynamic shape correction device. In Figure 3, 11, 12° 29.30.
49 is a lens, 13.31 is a diamond grinding wheel for rough grinding, 14.32 is a diamond grinding wheel for fine grinding, which is attached to rotating spindles 15, 16° 33.34, 120
Rotates at high speed from 0Orpm to 36000rpm. 67.
58, 59.60 are rotating spindles 16, 16, 33,
This is a drive motor that rotationally drives 34. 17.18,
35° 36 is a rough grinding diamond grinding wheel 13, 31. This is an inclined slide section that tilts each of the diamond grindstones 14 and 32 for precision grinding so that a spherical surface with a predetermined radius of curvature can be processed, and is locked after being indexed at a predetermined angle by a drive motor (not shown). Also, 19, 20, 37.3
Reference numeral 8 designates a parallel slide portion for setting each grindstone position so that the outer peripheral portion of the grindstone contacts the center of the lens, and is indexed and locked at a predetermined position by a drive motor (not shown). Collet chucks 21.22, 39.40 are attached to rotating spindles 23, 24, 41.42,
Rotates at rpm. The lenses 11, 12.degree. 29.30 are fed to each grindstone while being rotated by the feed slide portions 25, 26, 43.degree. 44. 27.45 is an index table, which is rotated by a rotary motor 28, 4θ. Reference numerals 47 and 48 indicate control units that control each drive unit.
ＳＯ。S.O.
６１はスフェロリング、５２は中心厚測定治具、５３．
５４．５５は変位量測定器であり、６ｅは５３．５４．
６５より取込まれた測定データを演算処理するデータ処
理部である。61 is a spheror ring, 52 is a center thickness measuring jig, 53.
54.55 is a displacement measuring device, and 6e is 53.54.
This is a data processing unit that performs arithmetic processing on the measurement data taken in from 65.
以上のように構成された球面研削自動形状補正装置につ
いて、以下その動作を説明する。The operation of the automatic shape correction device for spherical grinding configured as described above will be described below.
まず、図示せぬオートハンドによりレンズ素材がコレッ
トチャック２１に装着され、回転スピンドル２３により
低速回転しながら送りスライド部２６により粗研削用ダ
イヤモンド砥石１３に対して送り込まれ、粗研削加工が
なされる。First, a lens material is mounted on the collet chuck 21 by an automatic hand (not shown), and while being rotated at low speed by the rotary spindle 23, it is sent to the rough grinding diamond grindstone 13 by the feed slide section 26, and rough grinding is performed.
この加工が終了するとインデックステーブルｌ上に載せ
られ施回し、上記同様の動作を行ない精研削加工が行な
われる。この後インデックステーブル２７は施回し、加
工済みのレンズはオートハンドによシ取り出され、レン
ズを反転し次のマシンへと移載され上記と同様の粗研削
加工と精研削加工が行なわれる。When this machining is completed, it is placed on the index table l and rotated, and the same operations as described above are performed to perform fine grinding. Thereafter, the index table 27 is rotated, the processed lens is taken out by the automatic hand, the lens is reversed and transferred to the next machine, and the same rough grinding and fine grinding as described above are performed.
次に、両面とも加工が終了したレンズは形状測定装置に
移載され、ス７エロリング５０．５１と変位量測定器５
３，５４．５６を組み合わせてなる１対の測定装置でレ
ンズ４９を挾み込んで保持した状態でレンズ４９の上・
下面の曲率誤差および中心肉厚誤差を測定する。測定し
たデータはデータ処理部５ｅに取込まれ、本発明の第１
の実施例で説明した処理を行ない、レンズ形状の補正が
必要ならば、補正データを制御部４７．４８に自動フ、
イードバックし、補正動作を実行する。以上のような一
連の動作を同一のタクトタイムで連続して行なう。Next, the lens, which has been processed on both sides, is transferred to the shape measuring device, where it is placed in the shape measuring device 50, 51 and the displacement measuring device 5.
3, 54, and 56 are used to hold the lens 49 between them.
Measure the curvature error and center thickness error of the bottom surface. The measured data is taken into the data processing section 5e, and the first
If the process described in the embodiment is performed and the lens shape needs to be corrected, the correction data is automatically sent to the control units 47 and 48.
Feed back and perform correction operation. The above-mentioned series of operations are performed continuously at the same takt time.
以上のように本実施例によれば、粗研削加工と精研削加
工を行ない、精研削加工では加工開始検出機能を持つ精
密球面研削装置を２台配し、加工 −されたレンズ形状
を自動測定し、補正データを精密球面研削装置に自動フ
ィードバックすることにより球面研削加工の全自動化を
図ることができ、生産性が向上する。As described above, according to this embodiment, rough grinding and fine grinding are performed, and in the fine grinding, two precision spherical grinding machines with a processing start detection function are installed to automatically measure the processed lens shape. By automatically feeding back the correction data to the precision spherical grinding device, spherical grinding can be fully automated, improving productivity.
なお、第１の実施例では、中心肉厚誤差から砥石摩耗量
を類推したが、レンズ曲率誤差から砥石摩耗量を類推し
てもよいことは言うまでもない。Note that in the first embodiment, the amount of wear on the grindstone was inferred from the center thickness error, but it goes without saying that the amount of wear on the grindstone may be inferred from the lens curvature error.
発明の効果
以上のように本発明の第１および第２の発明は、共に労
力Φ時間の簡略化を図ることができ、複雑な球面研削加
工工程を簡易化し、全自動化を図ることができることに
より生産性を大幅に向上するとともに、砥石摩耗量を類
推し常に補正することにより加工精度の信頼性が向上す
るという特有の効果を有するものである。Effects of the Invention As described above, the first and second aspects of the present invention can both simplify the labor Φ time, simplify the complicated spherical grinding process, and achieve full automation. This method has the unique effect of significantly improving productivity and improving the reliability of machining accuracy by constantly correcting the amount of wear on the grindstone.
第１図は本発明の第１の実施例における球面研削自動形
状補正方法の概略を説明する流れ図、第２図は第１図の
データ処理部の流れ図、第３図は本発明の第２の実施例
における球面研削自動形状補正装置の構成図、第４図は
従来の加工装置の構成図、第５図は従来の形状測定器を
表わす図である。
１１．１２．２９，３０，４９・・・・・・レンズ、１
３゜３１・・・・・・粗研削用ダイヤモンド砥石、１４
，３２・・・・・・精研削用ダイヤモンド砥石、１６，
１θ、３３゜３４・・・・・・回転スピンドル、２１，
２２，３９．４０・・・・・・コレットチャック、５３
，６４．５５・川・・変位量測定器、６６・・・・・・
データ処理部、４７ 、４８・・・・・・制御部。FIG. 1 is a flowchart outlining the automatic shape correction method for spherical grinding according to the first embodiment of the present invention, FIG. 2 is a flowchart of the data processing section of FIG. 1, and FIG. FIG. 4 is a block diagram of an automatic shape correction device for spherical grinding in an embodiment, FIG. 4 is a block diagram of a conventional processing device, and FIG. 5 is a diagram showing a conventional shape measuring device. 11.12.29,30,49...Lens, 1
3゜31・・・Diamond whetstone for rough grinding, 14
, 32... Diamond grinding wheel for precision grinding, 16,
1θ, 33°34...Rotating spindle, 21,
22,39.40... Collet chuck, 53
, 64.55・River・・Displacement measuring device, 66・・・・・
Data processing section, 47, 48...control section.
Claims (5)
厚誤差のいずれかを測定し、この測定データから砥石摩
耗量を類推し、所定のレンズ曲率あるいは中心肉厚に補
正することを特徴とする球面研削自動形状補正方法。(1) It is characterized by measuring either the lens curvature error or center wall thickness error after spherical grinding, estimating the grinding wheel wear amount from this measurement data, and correcting it to a predetermined lens curvature or center wall thickness. Automatic shape correction method for spherical grinding.
ッキングし回転させるとともに被加工物を送り込む手段
と、前記被加工物を所定の球面形状に加工するよう所定
の角度傾斜するとともに横ずらしに配置されるとともに
回転駆動する手段を有する加工工具と、前記保持具の送
り速度を制御する制御部とからなる精密球面研削装置と
、スフェロリングと変位量測定器を組み合わせてなる１
対のレンズ形状測定装置と、その測定データを取り込み
演算処理するデータ処理部と、前記データ処理部からの
補正データに基づいて前記精密球面研削装置の補正動作
を制御する制御部とを備えたことを特徴とする球面研削
自動形状補正装置。(2) a holder for holding a workpiece; a means for chucking and rotating the holder; and a means for feeding the workpiece; A precision spherical grinding device consisting of a processing tool arranged laterally and having means for rotationally driving it, a control section for controlling the feed rate of the holder, a spheror ring, and a displacement measuring device.
A pair of lens shape measuring devices, a data processing section that takes in the measurement data and performs arithmetic processing, and a control section that controls the correction operation of the precision spherical surface grinding device based on correction data from the data processing section. A spherical grinding automatic shape correction device featuring:
記両方の加工工具の間を被加工物が自動的に移動する手
段を備えた特許請求の範囲第２項記載の球面研削自動形
状補正装置。(3) Spherical grinding according to claim 2, which includes processing tools for both rough grinding and fine grinding, and includes means for automatically moving the workpiece between the two processing tools. Automatic shape correction device.
の駆動モータの、被加工物と加工工具が接触し研削加工
が開始される瞬間の電流変化を検出し、その検出信号に
より保持具の送り速度を制御することを特徴とする特許
請求の範囲第２項記載の球面研削自動形状補正装置。(4) The control unit detects the current change of the drive motor, which is a means for rotationally driving the processing tool, at the moment when the workpiece and the processing tool come into contact and grinding is started, and the control unit uses the detection signal to control the holder. The automatic shape correction device for spherical grinding according to claim 2, characterized in that the feed rate is controlled.
る２組の精密面研削装置を有し、前記２組の精密面研削
装置の間を被加工物が自動的に移動する手段を備えた特
許請求の範囲第２項記載の球面研削自動形状補正装置。(5) A means for having two sets of precision surface grinding devices for processing one surface and the other surface of a workpiece, respectively, and for automatically moving the workpiece between the two sets of precision surface grinding devices. An automatic shape correction device for spherical grinding according to claim 2, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31214186A JPS63169258A (en) | 1986-12-26 | 1986-12-26 | Automatic form compensating method in spherical grinding and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31214186A JPS63169258A (en) | 1986-12-26 | 1986-12-26 | Automatic form compensating method in spherical grinding and device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63169258A true JPS63169258A (en) | 1988-07-13 |
Family
ID=18025745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31214186A Pending JPS63169258A (en) | 1986-12-26 | 1986-12-26 | Automatic form compensating method in spherical grinding and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63169258A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685298A1 (en) * | 1994-04-12 | 1995-12-06 | Schneider GmbH + Co. KG | Procedure of and device for fabricating aspheric lens surfaces |
| DE19751750B4 (en) * | 1997-11-21 | 2007-08-02 | Schneider Gmbh + Co. Kg | Method and device for producing polishable optical lenses from lens blanks |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131156A (en) * | 1983-12-20 | 1985-07-12 | Matsushita Electric Ind Co Ltd | Nc spherical-surface working apparatus |
-
1986
- 1986-12-26 JP JP31214186A patent/JPS63169258A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131156A (en) * | 1983-12-20 | 1985-07-12 | Matsushita Electric Ind Co Ltd | Nc spherical-surface working apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0685298A1 (en) * | 1994-04-12 | 1995-12-06 | Schneider GmbH + Co. KG | Procedure of and device for fabricating aspheric lens surfaces |
| DE19751750B4 (en) * | 1997-11-21 | 2007-08-02 | Schneider Gmbh + Co. Kg | Method and device for producing polishable optical lenses from lens blanks |
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