JPH031177Y2 - - Google Patents
Info
- Publication number
- JPH031177Y2 JPH031177Y2 JP14839086U JP14839086U JPH031177Y2 JP H031177 Y2 JPH031177 Y2 JP H031177Y2 JP 14839086 U JP14839086 U JP 14839086U JP 14839086 U JP14839086 U JP 14839086U JP H031177 Y2 JPH031177 Y2 JP H031177Y2
- Authority
- JP
- Japan
- Prior art keywords
- curvature
- grindstone
- disk
- pair
- screw shaft
- 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
- 238000005498 polishing Methods 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 4
- 239000006061 abrasive grain Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は砥石外径曲率を自動で変更可能にした
砥石に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a grindstone in which the curvature of the outer diameter of the grindstone can be automatically changed.
従来、ボールエンドミル等で金型等を加工した
後は、人手による仕上研磨作業を行つていた。
Conventionally, after machining a mold or the like with a ball end mill or the like, finishing polishing work was performed manually.
又、自動研磨盤で研磨作業を行なう場合でも型
の形状に合せて砥石を選択的に交換して仕上研磨
を行つていた。 Furthermore, even when polishing is performed using an automatic polishing machine, final polishing is performed by selectively replacing the grindstone according to the shape of the mold.
しかしながら従来技術においては、手間がかか
り、慣れと熟練を必要とし、自動研削盤で研磨作
業を行う場合でも、型の形状に合わせその都度砥
石を選択的に交換にしなければならず、非能率的
で機械稼動率を低下させ、生産性の阻害要因とな
つていた。
However, with conventional technology, it is time-consuming, requires practice and skill, and even when polishing is performed using an automatic grinder, the grindstone must be selectively replaced each time according to the shape of the mold, which is inefficient. This lowered the machine operating rate and became a factor hindering productivity.
本考案は、上記事情に鑑み提案されたものでそ
の目的は、手間がかからず、しかも自動的に砥石
外径の曲率を種々変更することが可能で機械稼動
率の高い生産性の良い可変曲率砥石を提供するこ
とにある。 This invention was proposed in view of the above circumstances, and its purpose is to automatically change the curvature of the outer diameter of the grinding wheel in various ways without requiring much effort, and to achieve high productivity with high machine utilization. Our purpose is to provide curvature grinding wheels.
本考案は上記問題点を解決するための手段とし
て、駆動手段によつてハウジングに回転可能に軸
承された主軸と、該主軸先端に取付けられたボデ
ーと、該ボデーに設けられた一対の円盤と、該一
対の円盤外周にまたがつて固定された弾性砥石
と、前記ボデーに設けられた前記一対の円盤相互
の間隔を離間縮少する駆動手段とから成り、該駆
動手段により前記一対の円盤間の間隔を変え弾性
砥石の曲率を変化させることを特徴とする可変曲
率砥石とした。
The present invention, as a means to solve the above-mentioned problems, includes a main shaft rotatably supported on a housing by a drive means, a body attached to the tip of the main shaft, and a pair of discs provided on the body. , an elastic grindstone fixed across the outer periphery of the pair of discs, and a drive means provided on the body for separating and reducing the distance between the pair of discs, and the drive means increases the distance between the pair of discs. This is a variable curvature grindstone characterized by changing the curvature of the elastic grindstone by changing the interval between the two.
駆動手段により主軸を回転させ、ボデーに設け
られた駆動手段を駆動させる。
The main shaft is rotated by the driving means to drive the driving means provided on the body.
一対の円盤を離間あるいは縮少し、所定の間隔
に固定することで弾性砥石の曲率を所望の曲率に
形成して固定させる。その後、その曲率の弾性砥
石による研摩作業が行われる。 By separating or contracting the pair of disks and fixing them at a predetermined interval, the curvature of the elastic grindstone is formed to a desired curvature and fixed. Thereafter, a polishing operation is performed using an elastic grindstone of that curvature.
以下、本考案の一実施例を図面に基づいて更に
詳細に説明する。
Hereinafter, one embodiment of the present invention will be described in more detail based on the drawings.
第１図は本考案の可変曲率砥石を表す一部断面
の側面図を示し、第２図は第１図におけるＡ−Ａ
断面図を示し、第３図は第１図における円筒部材
とボデーとの係合部をす部分断面図を示す。 FIG. 1 shows a partially cross-sectional side view of the variable curvature grindstone of the present invention, and FIG.
A sectional view is shown, and FIG. 3 is a partial sectional view showing the engagement portion between the cylindrical member and the body in FIG. 1.
第１図ないし第３図において明らかな如く、本
装置はテーパシヤンク１を介してスピンドル１０
０に挿着される。 As is clear from FIGS. 1 to 3, the device is connected to a spindle 10 through a taper shank 1.
0 is inserted.
テーパシヤンク１は、自動工具交換装置（以下
ATCと呼称）により交換可能なように先端部に
把持部１ａが形成され、後部にはプルスタツド部
が形成され、挿着面はテーパとなつている。 Taper shank 1 is an automatic tool changer (hereinafter referred to as
A grip part 1a is formed at the tip so that it can be replaced by ATC (referred to as ATC), a pull stud part is formed at the rear, and the insertion surface is tapered.
テーパーシヤンク１の把持部１ａの側端部には
ボデー１１が３個所の突起部１１ａを介してボル
ト１３で接合されている。この２つの部材１およ
び１１の接合部は突起部１１ａにより空間が形成
されると共に、互いに対峙する面には同形の大径
穴２，２′及び、小径穴が形成される。この小径
穴には夫々軸受４，１０が保持され、該軸受には
ギヤ２３および、このギヤ２３に噛合するピニオ
ンギヤ９が回転自在に軸承されている。 A body 11 is joined to the side end portion of the gripping portion 1a of the taper shank 1 with bolts 13 via three protrusions 11a. A space is formed by the protrusion 11a at the junction of the two members 1 and 11, and large diameter holes 2, 2' and small diameter holes of the same shape are formed in the opposing surfaces. Bearings 4 and 10 are held in these small diameter holes, respectively, and a gear 23 and a pinion gear 9 that meshes with the gear 23 are rotatably supported on the bearings.
中央軸線上にあるギヤ２３と一体的に形成され
た中空軸の一端には凹クラツチ６が形成され、中
空軸の貫通穴内には一端に凸クラツチ歯７を設け
たねじ軸５が挿嵌している。そして、凸クラツチ
歯７と凹クラツチ歯６は互いに噛合しており、凸
クラツチ歯７はばね８により凹クラツチ歯６に向
けて押圧付勢されている。 A concave clutch 6 is formed at one end of the hollow shaft integrally formed with the gear 23 on the central axis, and a screw shaft 5 having convex clutch teeth 7 at one end is inserted into the through hole of the hollow shaft. ing. The convex clutch teeth 7 and the concave clutch teeth 6 mesh with each other, and the convex clutch teeth 7 are urged toward the concave clutch teeth 6 by a spring 8.
従つて、ギヤ２３の回転は各凹クラツチ歯６、
凸クラツチ歯７との噛合により、ねじ軸５に伝達
される。 Therefore, the rotation of the gear 23 is caused by each concave clutch tooth 6,
The force is transmitted to the screw shaft 5 through engagement with the convex clutch teeth 7.
また、前記２つの部材は１と、１１間外周に形
成される溝１１ｂ内には円筒部材１２が回転可能
に挿嵌し、該円筒部材１２内周に刻設されている
内歯歯車には前記ピニオンギヤ９が噛合し、更に
このピニオンギヤ９はギヤ２３とも噛合してい
る。 Further, a cylindrical member 12 is rotatably inserted into a groove 11b formed on the outer periphery between the two members 1 and 11, and an internal gear carved on the inner periphery of the cylindrical member 12 is The pinion gear 9 meshes with the pinion gear 9, and the pinion gear 9 also meshes with the gear 23.
前記円筒部材１２を円周方向に摺動させるボデ
ー１１の摺動面には円周に沿つて径方向に穿設さ
れた複数の小孔内にばね１９で外方に付勢され
て、ボール１８が挿嵌され、円筒部材１２の内周
摺動面には、これらボール１８に係合するノツチ
が形成され、相互の係止により円筒部材１２の周
方向の滑りを防止している。 The sliding surface of the body 11 that slides the cylindrical member 12 in the circumferential direction has a plurality of small holes bored in the radial direction along the circumference, and is biased outwardly by a spring 19, so that the ball is pressed outwardly by a spring 19. 18 are inserted, and notches are formed on the inner peripheral sliding surface of the cylindrical member 12 to engage these balls 18, and the mutual locking prevents the cylindrical member 12 from slipping in the circumferential direction.
更に、円筒部材１２の、把持部１ａ側の一端外
周にはフランジが形成され、該フランジ外周に刻
設された係止部２２に係合すべく機械の固定側に
はシリンダ２４によりＺ方向に進退可能な係止体
２１が設けられてる。（第３図）
ボデー１１の一端には円盤２５がボルト３１で
固定され、該円盤２５の中央に突設したボス２５
ａの穴内にはキー溝２７が形成されている。ボス
２５ａの穴内には前記円盤２５と同径の円盤２６
の中央に突設したボス２６ａが前記キー溝２７と
係合するキー２８を介して軸方向に摺動可能に挿
嵌され、円盤２６の中心軸線に穿設された穴には
ねじが形成されている。 Further, a flange is formed on the outer periphery of one end of the cylindrical member 12 on the side of the gripping portion 1a, and a cylinder 24 is provided on the fixed side of the machine in order to engage with a locking portion 22 carved on the outer periphery of the flange. A locking body 21 that can move forward and backward is provided. (Fig. 3) A disk 25 is fixed to one end of the body 11 with a bolt 31, and a boss 25 protruding from the center of the disk 25
A keyway 27 is formed in the hole a. A disk 26 having the same diameter as the disk 25 is placed in the hole of the boss 25a.
A boss 26a protruding from the center of the disc 26 is inserted into the disc 26 so as to be slidable in the axial direction via a key 28 that engages with the key groove 27, and a screw is formed in a hole drilled in the central axis of the disc 26. ing.
円盤２６のねじは前記ねじ軸５のねじと螺合し
ている。前記ねじ軸５の凹クラツチ歯６と反対側
端部はフランジ５ａが形成され、円盤２６の軸方
向の動きを規制している。 The screw of the disk 26 is threadedly engaged with the screw of the screw shaft 5. A flange 5a is formed at the end of the screw shaft 5 opposite to the concave clutch teeth 6, and restricts movement of the disk 26 in the axial direction.
円盤２５および円盤２６外径の砥石取付け部２
５ｂ，２６ｂにはCBN等の砥粒を貼設した弾性
体より成る砥石２９がボルト３０により架設され
る。この砥石２９は円盤２６の軸線方向の移動に
従つて、R1，R2…とその表面の曲率を変化させ
得る。 Grinding wheel attachment part 2 of the disk 25 and disk 26 outer diameter
5b and 26b, a grindstone 29 made of an elastic body with abrasive grains such as CBN attached thereto is installed by bolts 30. This grindstone 29 can change R 1 , R 2 . . . and the curvature of its surface as the disk 26 moves in the axial direction.
ここで、砥石２４の曲率を変えるべく、一対の
円盤２５，２６間の間隔を変える場合、ボデー１
１側の円盤２５に対し円盤２６をねじ軸５の作用
で移動していたが、相互の円盤を互いに反対方向
に移動させる構造にしても良い。 Here, when changing the distance between the pair of disks 25 and 26 in order to change the curvature of the grindstone 24, the body 1
Although the disk 26 was moved with respect to the disk 25 on the first side by the action of the screw shaft 5, a structure may be adopted in which the disks are moved in opposite directions.
また、一対の円盤を移動させる手段はねじ軸５
に限定せず空気等の流体または別の機構を使用し
ても良い。 In addition, the means for moving the pair of discs is a screw shaft 5.
However, the present invention is not limited to this, and a fluid such as air or another mechanism may be used.
上述の如く構成された本装置の動作を説明す
る。 The operation of this device configured as described above will be explained.
まず曲率の小さな、つまり第１図において仮想
線で示されるR2での研磨を終了して曲率の大き
な、つまり第１図において実線で示されるR1で
の研磨を行う場合の動作を説明する。 First, we will explain the operation when finishing polishing with a small curvature, that is, R 2 shown by the imaginary line in Figure 1, and then polishing with a large curvature, that is, R 1 shown with the solid line in Figure 1. .
ねじ軸５を回転させるために、工作機械のスピ
ンドルを定位置に割り出しシリンダ２４に連結す
る係止体２１を前方に移動させる円筒部材１２の
係止部材２２に係合させる。 In order to rotate the screw shaft 5, the spindle of the machine tool is indexed into position and engaged with the locking member 22 of the cylindrical member 12, which moves the locking body 21 connected to the cylinder 24 forward.
次に、スピンドル１００を定角度回動させ本装
置全体を回動させる。係止体２１に係合し固定さ
れている円筒部材１２の対して、テーパシヤンク
１と一体化しているボデー１１は滑り防止用のボ
ール１８、ノツチ１７の係合に抗して回転する。 Next, the spindle 100 is rotated by a fixed angle to rotate the entire apparatus. While the cylindrical member 12 is engaged with and fixed to the locking body 21, the body 11 integrated with the taper shank 1 rotates against the engagement of the anti-slip ball 18 and the notch 17.
テーパシヤンク１とボデー１１の回転は、テー
パシヤンク１とボデー１１に架設して軸承されて
いるピニオンギヤ９の回転でもあり、該ピニオン
ギヤ９は円筒部材１２の内歯２０に噛合してお
り、ねじ軸５の太陽歯車とも言うべきギヤ２３に
も噛合し遊星運動を行なう。ピニオンギヤ９の遊
星運動により、ギヤ２３が回転すると互いに噛合
している凹クラツチ歯６、凸クラツチ歯７を介し
てねじ軸５も回転する。そしてこのねじ軸５の回
転はねじ軸５のねじ部に螺合している円盤２６に
伝達し、該円盤２６を軸線方向の前方へ移動させ
る。 The rotation of the taper shank 1 and the body 11 is also the rotation of the pinion gear 9 which is installed and supported on the taper shank 1 and the body 11, and the pinion gear 9 meshes with the internal teeth 20 of the cylindrical member 12. It also meshes with gear 23, which can be called a sun gear, and performs planetary motion. When the gear 23 rotates due to the planetary motion of the pinion gear 9, the screw shaft 5 also rotates via the concave clutch teeth 6 and convex clutch teeth 7 which are in mesh with each other. This rotation of the screw shaft 5 is transmitted to the disk 26 screwed into the threaded portion of the screw shaft 5, and the disk 26 is moved forward in the axial direction.
円盤２６は、該円盤２６のボス２６ａに埋設さ
れたキー２８により、円盤２５のボス２５ａに設
けられたキー溝２７内を摺動する。 The disc 26 slides in a keyway 27 provided in the boss 25a of the disc 25 by means of a key 28 embedded in the boss 26a of the disc 26.
円盤２６の軸線方向前方への移動によつて、円
盤２６および円盤２５に架設してある砥石２９
は、曲率の小さな（第１図でR2）形状から徐々
に曲率を変化させながら、所望の大きさの曲率に
架設される。所望の大きさの曲率（本実施例では
第１図のR1）に達したらスピンドル１００の回
転を停止し、係止部２２に係合している係止体２
１をシリンダ２４の移動によつて後退移動させ係
合を外す。 By moving the disk 26 forward in the axial direction, the grindstone 29 mounted on the disk 26 and the disk 25 is
is constructed to a desired size of curvature while gradually changing the curvature from a shape with a small curvature (R 2 in FIG. 1). When the desired size of curvature (R 1 in FIG. 1 in this embodiment) is reached, the rotation of the spindle 100 is stopped, and the locking body 2 engaged with the locking portion 22 is rotated.
1 is moved backward by the movement of the cylinder 24 to release the engagement.
砥石の曲率を変化させる場合、スピンドル１０
０の回転数とねじ軸５の回転数、つまり、軸線方
向への移動距離の対応関係はあらかじめ記憶され
ていて、その上でスピンドル１００を回転させる
ことになる。それでも誤動作によりピニオンギヤ
９の所要の回転数以上に回転が伝達されねじ軸端
のフランジ５ａに円盤２６が当接した場合等は、
ねじ軸５後方の凹クラツチ歯６がテーパシヤンク
１内に挿着されたばね８付勢された凸クラツチ歯
７に抗して回転するため、カラ回り状態となり、
砥石２９や装置の破損を防止できる。 When changing the curvature of the grinding wheel, the spindle 10
The correspondence between the rotational speed of 0 and the rotational speed of the screw shaft 5, that is, the moving distance in the axial direction, is stored in advance, and the spindle 100 is rotated on that basis. However, if the rotation is transmitted to the pinion gear 9 at a speed exceeding the required rotation speed due to a malfunction and the disk 26 comes into contact with the flange 5a at the end of the screw shaft, etc.
Since the concave clutch tooth 6 at the rear of the screw shaft 5 rotates against the convex clutch tooth 7 biased by the spring 8 inserted in the taper shank 1, the screw shaft 5 becomes in a state of idle rotation.
Damage to the grindstone 29 and the device can be prevented.
次に、スピンドル１００を回転させると円筒部
材１２のノツチ１７とボデー１１のボール１８と
が係合し、従つてピニオンギヤ９は固定されたま
ま回転し曲率の大きなR1の砥石で研磨が行なわ
れる。曲率の大きな砥石R2から曲率の小さなR2
の砥石に変えて研磨したい場合は、上述した動作
と逆の動作を行なえばよい。即ち、円筒部材１２
の係止部２２に係止体２１を係合させ、スピンド
ル１００を前回と逆回転させることにより、ピニ
オンギヤ９、ねじ軸５が逆回転しねじ軸５に螺合
した円盤２６が軸線方向後方に移動する。所望の
曲率に達た後は上述した如き動作によつて研磨作
業が行なわれることになる。 Next, when the spindle 100 is rotated, the notch 17 of the cylindrical member 12 and the ball 18 of the body 11 engage with each other, so that the pinion gear 9 rotates while being fixed, and polishing is performed with a grindstone of R 1 having a large curvature. . Grinding wheel R 2 with large curvature to R 2 with small curvature
If you wish to use a different whetstone for polishing, you can perform the opposite operation to the one described above. That is, the cylindrical member 12
By engaging the locking body 21 with the locking portion 22 of the spindle 100 and rotating the spindle 100 in the opposite direction, the pinion gear 9 and the screw shaft 5 rotate in the opposite direction, and the disk 26 screwed onto the screw shaft 5 moves rearward in the axial direction. Moving. After the desired curvature is achieved, polishing is performed by the operations described above.
上記構成、作用によつて本考案では、自動的に
砥石外径の曲率を変更することが可能であり、そ
の変更も構成が簡単なことから手間がかからず、
更に、仕上程度により砥粒の異なる砥石を使用し
たい時あるいは、得られる曲率以上、曲率以下の
砥石を使用したい時にもATCによる交換が可能
であり又、砥石のみの交換も簡単に行なえ、従つ
て機械稼動率の高い生産性の良い可変曲率砥石を
提供することが可能となつた。
With the above configuration and operation, the present invention can automatically change the curvature of the outer diameter of the grinding wheel, and since the configuration is simple, the change does not require much effort.
Furthermore, when you want to use a whetstone with different abrasive grains depending on the degree of finishing, or when you want to use a whetstone with a curvature greater than or less than the curvature that can be obtained, it is possible to exchange using ATC, and it is also easy to exchange only the whetstone. It has become possible to provide a variable curvature grindstone with high machine utilization rate and good productivity.
第１図は本考案の可変曲率砥石を表わす一部断
面の側面図を示し、第２図は第１図におけるＡ−
Ａ断面図を示し、第３図は第１図における円筒部
材とボデーとの係合部を表わす部分断面図を示
す。
１……テーパシヤンク、５……駆動伝達軸（ね
じ軸）、６……凹クラツチ歯、７……凸クラツチ
歯、９……ピニオンギヤ、１１……ボデー、１２
……円筒部材、２０……内歯歯車、２１……係止
部、２３……ギヤ、２４……シリンダ、２５……
円盤、２６……円盤、２９……弾性砥石。
FIG. 1 shows a partially cross-sectional side view of the variable curvature grindstone of the present invention, and FIG.
A sectional view is shown, and FIG. 3 is a partial sectional view showing the engagement portion between the cylindrical member and the body in FIG. 1. DESCRIPTION OF SYMBOLS 1... Taper shank, 5... Drive transmission shaft (screw shaft), 6... Concave clutch tooth, 7... Convex clutch tooth, 9... Pinion gear, 11... Body, 12
... Cylindrical member, 20 ... Internal gear, 21 ... Locking part, 23 ... Gear, 24 ... Cylinder, 25 ...
Disc, 26...Disc, 29...Elastic grindstone.
Claims (1)
された主軸と、該主軸先端に取付けられたボデー
と、該ボデーに設けられた一対の円盤と、該一対
の円盤外周にまたがつて固定された弾性砥石と、
前記ボデーに設けられた前記一対の円盤相互の間
隔を離間縮少する駆動手段とから成り、該駆動手
段により前記一対の円盤間の間隔を変え弾性砥石
の曲率を変化させることを特徴とする可変曲率砥
石。 A main shaft rotatably supported by a housing by a driving means, a body attached to the tip of the main shaft, a pair of discs provided on the body, and an elastic member fixed across the outer periphery of the pair of discs. A whetstone and
and a driving means for separating and reducing the distance between the pair of discs provided on the body, and the driving means changes the distance between the pair of discs and changes the curvature of the elastic grindstone. Curvature whetstone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14839086U JPH031177Y2 (en) | 1986-09-27 | 1986-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14839086U JPH031177Y2 (en) | 1986-09-27 | 1986-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6353665U JPS6353665U (en) | 1988-04-11 |
| JPH031177Y2 true JPH031177Y2 (en) | 1991-01-16 |
Family
ID=31062613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14839086U Expired JPH031177Y2 (en) | 1986-09-27 | 1986-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031177Y2 (en) |
-
1986
- 1986-09-27 JP JP14839086U patent/JPH031177Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6353665U (en) | 1988-04-11 |
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