JP2690797B2 - Grinding fluid supply device - Google Patents
Grinding fluid supply deviceInfo
- Publication number
- JP2690797B2 JP2690797B2 JP34079889A JP34079889A JP2690797B2 JP 2690797 B2 JP2690797 B2 JP 2690797B2 JP 34079889 A JP34079889 A JP 34079889A JP 34079889 A JP34079889 A JP 34079889A JP 2690797 B2 JP2690797 B2 JP 2690797B2
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- grinding fluid
- nozzle
- grindstone
- lever
- 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 - Fee Related
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は光学レンズ、ミラー、金型等の曲面の研削加
工に用いられる研削液供給装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding fluid supply device used for grinding curved surfaces of optical lenses, mirrors, molds and the like.
従来の技術 従来用いられている曲面研削の研削液供給装置の例を
第３図及び第４図に示す。2. Description of the Related Art FIG. 3 and FIG. 4 show an example of a conventional grinding fluid supply device for curved surface grinding.
第３図において、13は砥石工具で、回転スピンドル14
に取付けられａ方向へ高速回転し、被加工物15を所定の
曲面に創成研削する。砥石工具13はｂの方向に移動し、
被加工物15は回転対象曲面を創成するためにｃの方向に
回転している。In FIG. 3, 13 is a grindstone tool, and a rotary spindle 14
It is attached to and is rotated at a high speed in the direction of a to grind the workpiece 15 to a predetermined curved surface. The grindstone tool 13 moves in the direction of b,
The work piece 15 is rotating in the direction of c to create a curved surface to be rotated.
さらに、研削液供給のため、砥石工具13の接線方向に
研削液供給ノズル16を設け、研削点17近傍に研削液を供
給しながら曲面研削を行っている。Further, in order to supply the grinding liquid, a grinding liquid supply nozzle 16 is provided in the tangential direction of the grindstone tool 13, and curved surface grinding is performed while supplying the grinding liquid near the grinding point 17.
又、他の例として第４図に示すような研削液供給装置
が提案されている。第４図において砥石工具18の回転軸
に対し平行な方向の研削液供給ノズル19、砥石工具18の
接線方向の研削液供給ノズル20は砥石工具18の回転軸を
中心としてｅ方向に動作する。これら回転動作は駆動モ
ータ21により与えられる。駆動モータ21は砥石工具18の
円周上での研削点の移動角度θの動作データにより回転
し、研削液供給ノズル19、20が、加工の進行とともに移
動する研削点に追従して動作するようになっている。22
は被加工物を示す。ｌは砥石工具18の移動方向、Ｒは被
加工物の加工半径を示す。As another example, a grinding fluid supply device as shown in FIG. 4 has been proposed. In FIG. 4, the grinding fluid supply nozzle 19 in a direction parallel to the rotation axis of the grindstone tool 18 and the grinding fluid supply nozzle 20 in the tangential direction of the grindstone tool 18 operate in the e direction around the rotation axis of the grindstone tool 18. These rotation operations are given by the drive motor 21. The drive motor 21 rotates according to the movement data of the movement angle θ of the grinding point on the circumference of the grindstone tool 18, so that the grinding fluid supply nozzles 19 and 20 operate following the grinding point that moves as the machining progresses. It has become. twenty two
Indicates a workpiece. l is the moving direction of the grindstone tool 18, and R is the machining radius of the workpiece.
発明が解決しようとする課題 しかし、前者のような構成においては、研削点17は徐
々に移動し、加工開始時点で設置した研削液供給ノズル
16は研削点17へ向くことなく研削液供給の役割を担わな
くなる。従って、曲面研削の進行とともに研削点への研
削液の供給量が不足し、砥石工具13の目づまり、あるい
は摩滅を誘起することとなり、被加工物15の加工形状精
度が維持できなくなり、加工面の品質も悪化するという
欠点を有していた。However, in the former configuration, the grinding point 17 is gradually moved, and the grinding liquid supply nozzle installed at the time of starting the processing.
16 does not play the role of supplying the grinding fluid without going to the grinding point 17. Therefore, with the progress of curved surface grinding, the supply amount of the grinding fluid to the grinding point becomes insufficient, which causes clogging of the grindstone tool 13 or abrasion, and the machining shape accuracy of the workpiece 15 cannot be maintained. Had the drawback that the quality of the product also deteriorated.
又、後者のような構成では、駆動モータ21をスビンド
ルの先端付近に固定しなければならず、ノズルの回転機
構の構造が複雑で、スピンドルの先端に場所をとった
り、駆動モータ21が研削液で濡れ漏電するという問題が
あった。Further, in the latter configuration, the drive motor 21 must be fixed near the tip of the spindle, the structure of the nozzle rotation mechanism is complicated, and the drive motor 21 needs to be provided with a space for the spindle tip. There was a problem that it was wet and leaked.
本発明の目的は上記問題点を解消するものであり、研
削点に対し常に十分な研削液を供給することが可能とな
り、しかもノズルの移動に新たにモータを使う必要がな
く、単純な構成でコンパクトな研削液供給装置を提供し
ようとするものである。The object of the present invention is to solve the above problems, and it becomes possible to always supply a sufficient amount of grinding liquid to the grinding point, and it is not necessary to use a new motor for moving the nozzle, and a simple structure is used. It is intended to provide a compact grinding fluid supply device.
課題を解決するための手段 本発明は上記目的達成のため、Ｔ字型に配置されたXY
テーブルの一方に被加工物を、他方に砥石工具を取付け
てテーブルの相対運動により被加工物を所定の曲面形状
に研削加工する研削加工機において、研削点に対し砥石
工具の接線方向から研削液を供給するノズルと、このノ
ズルが固定された砥石工具の回転軸と中心を同一にした
回転軸を中心に揺動可能に支持されたレバーと、このレ
バーの端部に設けたカムフロアーを介して砥石の移動に
つれノズルの研削液吐出口が常に研削点に向くようレバ
ーを揺動運動させる形状をした固定カムとを備えた研削
液供給装置とした。Means for Solving the Problems In order to achieve the above object, the present invention has XY arranged in a T shape.
In a grinding machine that attaches a workpiece to one side of the table and a grindstone tool to the other side and grinds the workpiece into a predetermined curved surface shape by relative motion of the table Via a cam floor provided at the end of this lever, a lever that is swingably supported around a rotation axis that is centered on the rotation axis of the grindstone tool to which this nozzle is fixed And a fixed cam having a shape in which the lever is oscillated so that the grinding fluid discharge port of the nozzle always faces the grinding point as the grindstone moves.
作 用 本発明は上記したように、被加工物と砥石工具とをそ
れぞれXYテーブルに取付け、テーブルの相対運動によっ
て被加工物を研削加工するようになっており、砥石工具
による加工の進行とともに移動する研削点に追従してレ
バーと固定カムによって研削液を供給するノズルが移動
し、研削点に常に十分な研削液を供給することができる
ようになっている。Operation As described above, the present invention attaches the work piece and the grindstone tool to the XY table, and grinds the work piece by the relative motion of the table. The nozzle that supplies the grinding liquid moves by the lever and the fixed cam following the grinding point to be constantly supplied, and it is possible to always supply the sufficient grinding liquid to the grinding point.
実施例 以下、本発明の一実施例である研削液供給装置につい
て図面を参照しながら説明する。Embodiment Hereinafter, a grinding fluid supply apparatus according to an embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の実施例を示す平面図、第２図は側面
図である。FIG. 1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a side view.
１はホルダーで、被加工物２を保持する。３は研削液
供給ノズルで、研削液吐出口４が砥石工具５の接線方向
に向いて取付けられている。６はレバーで、研削液供給
ノズル３が固定され、砥石工具５の回転軸と中心を同一
にした回転軸７を中心に揺動可能に支持されている。８
は固定カムで、レバー６に固定されたローラフォロアー
９がバネ10により固定カム８側に付勢されており、固定
カム８は砥石工具５がＸ方向に移動するにつれ、研削液
供給ノズル３の研削液吐出口４が研削点の方向を向くよ
うにレバー６が回転するような形状をしている。Reference numeral 1 denotes a holder, which holds a workpiece 2. 3 is a grinding liquid supply nozzle, and the grinding liquid discharge port 4 is attached so as to face the tangential direction of the grindstone tool 5. Reference numeral 6 denotes a lever, to which the grinding liquid supply nozzle 3 is fixed, and is supported so as to be swingable about a rotary shaft 7 having the same center as the rotary shaft of the grindstone tool 5. 8
Is a fixed cam, and the roller follower 9 fixed to the lever 6 is urged toward the fixed cam 8 side by the spring 10. The fixed cam 8 moves toward the fixed cam 8 as the grindstone tool 5 moves in the X direction. The lever 6 is shaped so that the grinding fluid discharge port 4 faces the direction of the grinding point.
すなわち、第１図に示すように、研削液供給ノズル３
の研削液吐出口４の方向が研削点ｋにおける砥石工具５
の接線上にきたときのカムフォロアーの各々の研削点で
の軌跡を結んだ線を固定カム８の形状としている。11は
Ｘテーブル上に設けられた砥石回転スピンドルであり、
12はＹテーブル上に設けられた被加工物回転スピンドル
であり、XYテーブルはＴ字型に配置され、これらXYテー
ブルの相対運動により被加工物２を砥石と当接させ研削
加工をするようになっている。That is, as shown in FIG. 1, the grinding fluid supply nozzle 3
Of the grinding fluid discharge port 4 of the grinding wheel tool 5 at the grinding point k
The line connecting the loci at each grinding point of the cam follower when it comes to the tangent line is the shape of the fixed cam 8. 11 is a grindstone rotating spindle provided on the X table,
Reference numeral 12 denotes a workpiece rotating spindle provided on the Y table. The XY table is arranged in a T shape, and the workpiece 2 is brought into contact with a grindstone by the relative movement of these XY tables to perform grinding processing. Has become.
上記のように構成された研削液供給装置において、ま
ず被加工物２を所定の曲面を研削するに当り、あらかじ
め加工装置に組み込まれたプログラムに従って互いに直
行するXYテーブルに各々が設けられた砥石回転スピンド
ル11と被加工物回転スピンドル12が相対移動をする。研
削液供給ノズル３はある１研削点ｋにおいて有効に研削
液が供給されるようにセットされており、研削の進行と
共に固定カム８の形状に沿ってレバー６が揺動し、研削
液供給ノズル３の研削液吐出口４は常に加工の進行と共
に移動する研削点ｋ′の方向に向くように移動する。In the grinding fluid supply device configured as described above, when grinding the workpiece 2 on a predetermined curved surface, the grinding wheel rotations provided on the XY tables orthogonal to each other according to the program installed in the processing device in advance. The spindle 11 and the workpiece rotating spindle 12 move relative to each other. The grinding liquid supply nozzle 3 is set so that the grinding liquid is effectively supplied at a certain grinding point k, and the lever 6 swings along the shape of the fixed cam 8 as the grinding progresses, and the grinding liquid supply nozzle 3 The grinding fluid discharge port 4 of 3 always moves in the direction of the grinding point k'which moves with the progress of processing.
上記のように本実施例によれば、加工の進行と共に移
動する研削点ｋ、ｋ′に対し、充分な研削液を常に供給
するよう研削液供給ノズル３を簡単な構成で動作させる
ことができ、被加工物の形状精度や加工面の品質を維持
することができる。As described above, according to the present embodiment, the grinding liquid supply nozzle 3 can be operated with a simple structure so as to constantly supply a sufficient grinding liquid to the grinding points k and k ′ that move with the progress of processing. It is possible to maintain the shape accuracy of the workpiece and the quality of the machined surface.
発明の効果 上記のように本発明では、砥石の移動につれノズルの
研削液吐出口が常に研削点に向いているようにしたの
で、加工の進行と共に充分な研削液を常に研削点へ供給
することが簡単に且つ場所をとらずにでき、砥石工具の
目づまりや摩耗が防止され、極めて精度の高い高品質の
曲面創成ができる研削液供給装置を提供することができ
た。EFFECTS OF THE INVENTION As described above, in the present invention, the grinding liquid discharge port of the nozzle is always directed toward the grinding point as the grindstone moves, so that sufficient grinding liquid is always supplied to the grinding point as the machining progresses. It is possible to provide a grinding fluid supply device that can be easily and space-saving, prevents clogging and wear of the grindstone tool, and can generate a highly accurate and high-quality curved surface.
第１図は本発明の一実施例を示す平面図、第２図は同側
面図、第３図、第４図は従来例を示す平面図である。 ２……被加工物、３……研削液供給ノズル ５……砥石工具、６……レバー、７……回転軸 ８……固定カム、ｋ……研削点FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a side view thereof, and FIGS. 3 and 4 are plan views showing a conventional example. 2 ... Workpiece, 3 ... Grinding liquid supply nozzle 5 ... Grindstone tool, 6 ... Lever, 7 ... Rotating shaft 8 ... Fixed cam, k ... Grinding point
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−8273（ＪＰ，Ａ) 特開 昭61−76271（ＪＰ，Ａ) 特開 昭54−149994（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 61-8273 (JP, A) JP 61-76271 (JP, A) JP 54-149994 (JP, A)
Claims (1)
加工物を、他方に砥石工具を取付けてテーブルの相対運
動により被加工物を所定の曲面形状に研削加工する研削
加工機において、研削点に対し砥石工具の接線方向から
研削液を供給するノズルと、このノズルが固定された砥
石工具の回転軸と中心を同一にした回転軸を中心に揺動
可能に支持されたレバーと、このレバーの端部に設けた
カムフロアーを介して砥石の移動につれノズルの研削液
吐出口が常に研削点に向くようレバーを揺動運動させる
形状をした固定カムとを備えたことを特徴とする研削液
供給装置。1. A grinding machine which grinds a workpiece into a predetermined curved surface shape by mounting a workpiece on one side of an XY table arranged in a T-shape and a grindstone tool on the other side and performing relative movement of the table. , A nozzle that supplies the grinding fluid to the grinding point from the tangential direction of the grindstone tool, and a lever that is swingably supported about a rotation axis that is centered on the rotation axis of the grindstone tool to which this nozzle is fixed. A fixed cam having a shape that causes the lever to swing so that the grinding fluid discharge port of the nozzle always faces the grinding point as the grindstone moves through a cam floor provided at the end of the lever. Grinding fluid supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34079889A JP2690797B2 (en) | 1989-12-29 | 1989-12-29 | Grinding fluid supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34079889A JP2690797B2 (en) | 1989-12-29 | 1989-12-29 | Grinding fluid supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03202274A JPH03202274A (en) | 1991-09-04 |
| JP2690797B2 true JP2690797B2 (en) | 1997-12-17 |
Family
ID=18340388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34079889A Expired - Fee Related JP2690797B2 (en) | 1989-12-29 | 1989-12-29 | Grinding fluid supply device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2690797B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19849025B4 (en) * | 1998-10-23 | 2007-12-20 | Bayerische Motoren Werke Ag | Crankshaft grinding machine |
| JP4592968B2 (en) | 2001-01-31 | 2010-12-08 | 株式会社トプコン | Grinding fluid supply device for lens grinding machine |
-
1989
- 1989-12-29 JP JP34079889A patent/JP2690797B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03202274A (en) | 1991-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |