JPS641275B2 - - Google Patents

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は多角柱状のワークを精密に自動研削す
るための研削装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a grinding device for precisely and automatically grinding a polygonal columnar workpiece.

［従来の技術］ 正多角柱状のワーク形状精度を極めて高精度に
加工しようとした時、従来は平面研削盤を用いて
ワークテーブル上に正多角形を構成するに必要な
角度を備えた研削治具を置き、これにワークを載
せて研削仕上げを行つてきた。[Prior art] When attempting to process a regular polygonal columnar workpiece shape with extremely high precision, conventionally, a surface grinder was used to create a grinding jig with the necessary angles to form a regular polygon on a worktable. I placed the tool, placed the workpiece on it, and finished grinding.

［発明が解決しようとする問題点］ 前記従来の方法では、研削治具へのワークのセ
ツト時に生じる取付け誤差がそのままワークの形
状精度の低下を招くため、所望の形状精度を実現
することは容易ではなかつた。またワークを人手
で回転させなければならなかつた。[Problems to be Solved by the Invention] In the conventional method described above, it is not easy to achieve the desired shape accuracy because the installation error that occurs when setting the workpiece on the grinding jig directly causes a decrease in the shape accuracy of the workpiece. It wasn't. In addition, the workpiece had to be rotated manually.

本発明の目的は、前記従来技術の問題点を除
き、容易に形状精度の高い多角柱形状のワークの
加工を実現する研削装置を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a grinding apparatus that eliminates the problems of the prior art and easily processes polygonal prism-shaped workpieces with high shape accuracy.

［問題点を解決するための手段］ 上記問題点は、動力駆動されて回転する主軸
と、この主軸を支承し、前記主軸中心線方向とこ
れに直交する方向にそれぞれ移動可能な主軸頭
と、前記主軸の前端に取付けたカツプ砥石と、こ
のカツプ砥石の前方でかつ側方に設けられ、前記
主軸中心線に直交する方向に伸張する軸線に沿つ
て設けられたワーク割出し軸を所定角度毎に割出
し固定するワーク割出し手段と、前記ワーク割出
し軸に対向して設けられたワーク押え手段とを有
するように構成することにより解決される。[Means for Solving the Problems] The above-mentioned problems include: a spindle that rotates by being driven by power; a spindle head that supports the spindle and is movable in the direction of the center line of the spindle and in a direction perpendicular thereto; A cup grindstone attached to the front end of the spindle and a workpiece indexing shaft provided in front and to the side of the cup grindstone along an axis extending perpendicular to the center line of the spindle are rotated at predetermined angles. This can be solved by configuring the workpiece indexing means for indexing and fixing the workpiece and the workpiece holding means provided opposite to the workpiece indexing shaft.

［作用］ ワーク割出し軸にワーク押え手段によつて保持
されたワークをワーク割出し手段によつて所定角
づつ順に割出しながらカツプ砥石の前端面によつ
て研削を行う。[Operation] The workpiece held on the workpiece indexing shaft by the workpiece holding means is indexed sequentially by a predetermined angle by the workpiece indexing means, while being ground by the front end surface of the cup grindstone.

［実施例］ 以下、本発明の一実施例を第１図及び第２図に
より説明する。第１図は本発明による研削装置の
平面図、第２図は第１図のワーク割出し手段及び
ワーク押え手段の部分平面断面図である。１はベ
ツド、２はベツド１の上面に固定された支持台
で、第１案内路３が設けられている。４は前記第
１案内路３に沿つて移動可能に設けられた第１テ
ーブルで、その上面には前記第１案内路３に直交
するように第２案内路（図示せず）が設けられて
いる。５は第１テーブル４に設けられた第２案内
路に沿つて移動可能な第２テーブル、６は第１テ
ーブル４を第１案内路３に沿つて往復動させる送
りモータ、７は第２テーブル５を往復動させる油
圧シリンダ、８は第２テーブル５上に固定された
主軸頭、９は第２テーブル５に固定されたモー
タ、１０は第１案内路３の伸張方向と平行に前記
主軸頭８に回転可能に支承された主軸で、前記モ
ータ９によつて動力駆動される。前記主軸頭８は
送りモータ６と油圧シリンダ７によつて主軸１０
の中心線方向とこれに直交する方向に自由に往復
動が可能である。１１は主軸１０の前端に固定さ
れ、主軸１０と共に回転するカツプ砥石で、その
前端外周部に沿つて砥粒面をもち、平面研削を行
うことができる。[Example] An example of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a plan view of a grinding apparatus according to the present invention, and FIG. 2 is a partial plan cross-sectional view of the workpiece indexing means and workpiece holding means shown in FIG. 1 is a bed, 2 is a support fixed to the upper surface of the bed 1, and a first guide path 3 is provided. Reference numeral 4 denotes a first table movably provided along the first guide path 3, and a second guide path (not shown) is provided on the upper surface of the table so as to be orthogonal to the first guide path 3. There is. 5 is a second table movable along a second guide path provided on the first table 4; 6 is a feed motor that reciprocates the first table 4 along the first guide path 3; 7 is a second table 5 is a hydraulic cylinder that reciprocates; 8 is a spindle head fixed on the second table 5; 9 is a motor fixed on the second table 5; 10 is a hydraulic cylinder that moves the spindle head parallel to the direction in which the first guide path 3 extends. The main shaft is rotatably supported at 8 and is powered by the motor 9. The spindle head 8 is connected to the spindle 10 by a feed motor 6 and a hydraulic cylinder 7.
It is possible to freely reciprocate in the direction of the center line and in the direction perpendicular to this. A cup grindstone 11 is fixed to the front end of the main shaft 10 and rotates together with the main shaft 10. The grindstone 11 has an abrasive grain surface along the outer circumference of the front end and can perform surface grinding.

１５はワーク１６を割出しするためのワーク割
出し手段で、カツプ砥石１１の前方でかつ側方の
ベツド１上に載置されている。このワーク割出し
手段１５は、本体１７に軸受１８，１９を介して
回転可能に支承され、主軸１０の中心線に直交す
る方向に配置されたワーク割出し軸２０と、ワー
ク割出し軸２０の前端に設けられたワーク受部２
１と、この後端に軸方向に滑動可能で回転方向に
は遊びがないスプライン手段２２を介して設けら
れた割出し歯車２３と、一方を本体１７に他方を
割出し歯車２３にそれぞれ固定してなる１対のカ
ービツクカツプリング、ハースカツプリングなど
の歯付きカツプリング２４と、割出し歯車２３に
噛み合う平歯車２５をその出力軸に設けた割出し
モータ２６と、割出し歯車２３をワーク割出し軸
２０の軸方向に往復動せしめ歯付きカツプリング
２４を係脱させる空圧シリンダ２７とを備えてい
る。 Reference numeral 15 denotes a workpiece indexing means for indexing the workpiece 16, which is placed on the bed 1 in front of and to the side of the cup grindstone 11. This workpiece indexing means 15 is rotatably supported by a main body 17 via bearings 18 and 19, and includes a workpiece indexing shaft 20 arranged in a direction perpendicular to the center line of the main shaft 10, and Work receiving part 2 provided at the front end
1, an indexing gear 23 provided at the rear end thereof via a spline means 22 which is slidable in the axial direction and has no play in the rotational direction, and one is fixed to the main body 17 and the other is fixed to the indexing gear 23. A pair of toothed couplings 24 such as carbit couplings or hearth couplings, an indexing motor 26 whose output shaft is equipped with a spur gear 25 that meshes with the indexing gear 23, and an indexing motor 26 that rotates the indexing gear 23 to index the workpiece. It is provided with a pneumatic cylinder 27 that reciprocates in the axial direction of the extraction shaft 20 and engages and disengages the toothed coupling 24.

３０はワーク割出し軸２０に対向してベツド１
上に設けられたワーク押え手段で、ワーク割出し
軸２０の中心線延長方向に配置され、ブロツク３
１にスライドベアリング３２を介して回転及び滑
動可能に支持されたワーク押え軸３３と、ワーク
受部２１に対向してワーク押え軸３３の一端に設
けたワーク押え３４と、ブロツク３１に固定さ
れ、ピストン３５をワーク押え軸３３の他端に連
結する油圧シリンダ３６とを備えている。 30 is the bed 1 facing the workpiece indexing shaft 20.
The workpiece holding means provided above is arranged in the direction of extension of the center line of the workpiece indexing shaft 20, and the block 3
1, a work holding shaft 33 rotatably and slidably supported via a slide bearing 32, a work holding shaft 34 provided at one end of the work holding shaft 33 facing the work receiving portion 21, and a work holding shaft 34 fixed to the block 31; The hydraulic cylinder 36 connects the piston 35 to the other end of the work holding shaft 33.

４０はワーク１６を供給搬出するローダで、ワ
ーク割出し手段１５とワーク押え手段３０の中間
に配設されている。 Reference numeral 40 denotes a loader for supplying and unloading the workpiece 16, and is disposed between the workpiece indexing means 15 and the workpiece holding means 30.

次にかかる構成よりなる研削装置の動作につい
て説明する。ローダ４０によつて多角柱状のワー
ク１６がワーク割出し手段１５のワーク受部２１
とワーク押え手段３０のワーク押え３４の間に予
め決められた位相で供給されると、油圧シリンダ
３６が動作してワーク押え軸３３を押し出してワ
ーク押え３４によつてワーク１６をワーク受部２
１に押圧してワーク１６をチヤツクする。次にワ
ーク１６の供給された位相に対してその研削平面
とカツプ砥石１１の砥粒面とを合わせるため、空
圧シリンダ２７を動作せしめ割出し歯車２３を滑
動させ、歯付きカツプリング２４の噛み合いを開
放し、割出しモータ２６を定位置復帰させると、
ワーク割出し軸２０が回転して定位置へ位置決め
される。しかる後、空圧シリンダ２７を反対に動
作して歯付きカツプリング２４を噛み合わせてワ
ーク割出し軸２０を割出し固定する。この状態で
モータ９を起動して主軸１０を回転せしめ、カツ
プ砥石１１でワーク１６の一面を研削する。この
時、その研削の切込みは送りモータ６によつて制
御され、一面の研削に必要なトラバースは油圧シ
リンダ７によつて作動される。 Next, the operation of the grinding device having such a configuration will be explained. The polygonal columnar workpiece 16 is transferred to the workpiece receiving portion 21 of the workpiece indexing means 15 by the loader 40.
When the workpiece 16 is supplied between the workpiece holder 34 of the workpiece holding means 30 at a predetermined phase, the hydraulic cylinder 36 operates to push out the workpiece holding shaft 33 and move the workpiece 16 by the workpiece holder 34 to the workpiece receiving portion 2.
1 to check the workpiece 16. Next, in order to align the grinding plane of the workpiece 16 with the abrasive grain surface of the cup grindstone 11 with respect to the supplied phase, the pneumatic cylinder 27 is operated, the index gear 23 is slid, and the toothed coupling 24 is engaged. When it is released and the index motor 26 is returned to its normal position,
The workpiece indexing shaft 20 is rotated and positioned at a fixed position. Thereafter, the pneumatic cylinder 27 is operated in the opposite direction to engage the toothed coupling ring 24 to index and fix the workpiece indexing shaft 20. In this state, the motor 9 is started to rotate the main shaft 10, and one surface of the workpiece 16 is ground with the cup grindstone 11. At this time, the cutting depth of the grinding is controlled by the feed motor 6, and the traverse necessary for grinding one surface is operated by the hydraulic cylinder 7.

こうして一面の研削が終ると、次の研削面への
ワーク１６の割出しが行われる。この動作は定位
置への割出し動作と全く同様に行われる。このよ
うに、順にワーク１６の各面の研削が終ると、再
びローダ４０がワーク１６を保持し、油圧シリン
ダ３６が反対に動作してワーク１６を開放してワ
ーク１６を搬出する。続いてワーク１６を交換
し、これらの動作が繰返えされる。 When the grinding of one surface is completed in this way, the workpiece 16 is indexed to the next surface to be ground. This operation is performed in exactly the same way as the indexing operation to a home position. In this way, when each surface of the work 16 is finished being ground in sequence, the loader 40 holds the work 16 again, and the hydraulic cylinder 36 operates in the opposite direction to release the work 16 and transport the work 16. Subsequently, the workpiece 16 is replaced and these operations are repeated.

［発明の効果］ 以上の説明から明らかなように、本発明によれ
ば、ワークを研削治具を用いることなくワーク割
出し手段によつて１チヤツクで正確に割出しなが
ら研削を行うので、形状精度の極めて高い多角柱
状のワークの研削を行うことが可能である。[Effects of the Invention] As is clear from the above description, according to the present invention, the workpiece is ground while being accurately indexed in one chuck by the workpiece indexing means without using a grinding jig. It is possible to grind polygonal columnar workpieces with extremely high precision.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明による研削装置の一実施例を示
す平面図、第２図は第１図のワーク割出し手段及
びワーク押え手段の部分平面断面図である。 ８：主軸頭、１０：主軸、１１：カツプ砥石、
１５：ワーク割出し手段、１６：ワーク、２０：
ワーク割出し軸、３０：ワーク押え手段、４０：
ローダ。 FIG. 1 is a plan view showing an embodiment of a grinding apparatus according to the present invention, and FIG. 2 is a partial plan cross-sectional view of the workpiece indexing means and workpiece holding means shown in FIG. 8: Spindle head, 10: Spindle, 11: Cup grindstone,
15: Work indexing means, 16: Work, 20:
Work indexing shaft, 30: Work holding means, 40:
loader.

Claims (1)

【特許請求の範囲】[Claims] １ 動力駆動されて回転する主軸と、この主軸を
支承し、前記主軸中心線方向とこれに直交する方
向にそれぞれ移動可能な主軸頭と、前記主軸の前
端に取付けたカツプ砥石と、このカツプ砥石の前
方でかつ側方に設けられ、前記主軸中心線に直交
する方向に伸張する軸線に沿つて設けられたワー
ク割出し軸を所定角度毎に割出し固定するワーク
割出し手段と、前記ワーク割出し軸に対向して設
けられたワーク押え手段とを有することを特徴と
する研削装置。1. A power-driven and rotating main shaft, a main shaft head that supports this main shaft and is movable in the direction of the center line of the main shaft and a direction perpendicular thereto, a cup grindstone attached to the front end of the main spindle, and this cup grindstone. a workpiece indexing means for indexing and fixing a workpiece indexing shaft at predetermined angle intervals provided along an axis extending in a direction perpendicular to the spindle center line, the workpiece indexing means being provided in front and to the side of the workpiece indexing means; 1. A grinding device comprising: a workpiece holding means provided opposite to an output shaft.