JPH0325297B2 - - Google Patents
Info
- Publication number
- JPH0325297B2 JPH0325297B2 JP16438187A JP16438187A JPH0325297B2 JP H0325297 B2 JPH0325297 B2 JP H0325297B2 JP 16438187 A JP16438187 A JP 16438187A JP 16438187 A JP16438187 A JP 16438187A JP H0325297 B2 JPH0325297 B2 JP H0325297B2
- Authority
- JP
- Japan
- Prior art keywords
- grinding
- center
- annular
- ground
- grindstone
- 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
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は回転する３個の環状砥石に亘つて載置
した被研削物を平面研削する研削盤に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a grinding machine for surface grinding a workpiece placed over three rotating annular grindstones.
（従来の技術）
環状物の平面研削を行う場合には、被研削物の
マグネツトチヤツク等により固定しておいて、砥
石と被研削物とを強制接触させて行い、かかる強
制接触手段としては相互に接触状態とした被研削
物と砥石のいずれか一方を、加圧摺動する等して
相対的に移動させる。このように被研削物をマグ
ネツトチヤツクにより固定し強制研削する場合に
は、被研削物に熱処理等によつて生じた変形や歪
があつても、これをマグネツトチヤツク面に強力
に吸着して平坦に保持した状態で研削することに
なり、研削を終了したのちにマグネツトチヤツク
から取りはずした被研削物は再び変形し、加工前
の被研削物の表面全体から均一な厚みの層を研削
したに過ぎないことになる。(Prior art) When surface grinding an annular object, the object to be ground is fixed with a magnetic chuck, etc., and the grinding wheel and the object to be ground are forced into contact with each other. Either the object to be ground or the grindstone that is in contact with each other is moved relative to each other by sliding under pressure or the like. When the workpiece to be ground is fixed with a magnetic chuck and forcedly ground, even if the workpiece is deformed or distorted due to heat treatment, etc., this is strongly absorbed by the magnetic chuck surface. After grinding, the workpiece is removed from the magnetic chuck and deformed again, grinding a layer of uniform thickness from the entire surface of the workpiece before machining. It turns out that he just did it.
また、強制接触による研削は、必然的に高い熱
を生じるので、冷却手段が適切でないと、熱処理
をしてある被研削物に悪影響を与える。 Further, since forced contact grinding inevitably generates high heat, if the cooling means is not appropriate, it will adversely affect the heat-treated workpiece.
そこで前記の事情に鑑み、本発明者は種々の研
究、実験を長年に亘つて積み重ね、先きに特公昭
53−155号公報において前記諸問題を解決する手
段を開示し、かかる手段は歪みの有無に拘らず環
状物の一面を研削加工することができる研削盤を
提供し、被研削物の被研削面を複数の砥石面に重
力で当接させる一方、各砥石の回転に伴い被研削
物に回転運動を生じさせて被研削物の凹凸除去を
行うものであつて、正三角形の頂点に軸心をおく
ように配置した３本の垂直軸の上端に、それぞれ
砥石を固定し、各砥石の上向きの面の同一水平面
の研削面とし自由状態で研削するものである。 Therefore, in view of the above circumstances, the present inventor has accumulated various research and experiments over many years, and has previously
Publication No. 53-155 discloses a means for solving the above-mentioned problems, and this means provides a grinding machine capable of grinding one surface of an annular object regardless of the presence or absence of distortion. The grinding wheel is brought into contact with multiple grinding wheel surfaces by gravity, and the rotation of each grinding wheel causes rotational movement in the object to be ground, thereby removing the unevenness of the object. Grinding wheels are fixed to the upper ends of three vertical shafts that are arranged in parallel, and each grinding wheel is ground in a free state with the upward facing surface of the grinding surface being the same horizontal surface.
しかしながら、特公昭53−155号公報に示す手
段は、環状の被研削物の平面研削、歪み取りを高
能率に達成するには不十分であり、如何にして能
率良く研削加工を行うかについて、さらに研究を
重ね、漸く本発明を完成するに至つた。 However, the means shown in Japanese Patent Publication No. 53-155 is insufficient to achieve highly efficient surface grinding and distortion removal of annular objects to be ground. After further research, the present invention was finally completed.
（発明が解決しようとする問題点）
正三角形の頂点に中心をおくように配置した各
砥石の上向きの面を同一水平面の研削面とし自由
状態で平面研削する手段を高能率に達成せしめる
には如何にすべきかという問題点があつた。(Problems to be Solved by the Invention) How to achieve highly efficient surface grinding in a free state with the upward facing surfaces of each grindstone arranged so as to be centered at the vertices of an equilateral triangle being the same horizontal grinding surface. The problem arose as to what to do.
（問題点を解決するための手段）
本発明は正三角形の頂点に回転中心を有するそ
れぞれの取付盤に、各々の取付け中心を前記取付
盤の回転中心よりの半径線上、かつ回転中心より
同一距離として環状砥石を取付けてなるものであ
つて、機体の中央部に垂直中心軸を設け、この垂
直中心軸の軸心の回りを周方向３等分した仮想線
上でそれぞれ前記軸心より同一距離に回転中心を
有する３個の取付盤を設け、これら取付盤のそれ
ぞれに回転中心より半径線上かつ回転中心より同
一距離に取付け中心を有する環状砥石を取付け、
３個の前記取付盤を同角度、同方向に回転させ環
状砥石の中心を移動自在とし、これら環状砥石の
上向き面を同一水平面の研削面とし、各環状砥石
の研削面上に亘つて載置する被研削物を、同一方
向に回転する３個の環状砥石上において回転させ
つつ平面研削するようにしたことを特徴とする研
削盤を提供するものである。(Means for Solving the Problems) The present invention provides for each mounting plate having a rotation center at the apex of an equilateral triangle, each mounting center being on a radial line from the rotation center of the mounting plate and at the same distance from the rotation center. A circular grindstone is attached to the machine, and a vertical center axis is provided in the center of the machine body, and the center of the vertical center axis is divided into three equal parts in the circumferential direction, and each is at the same distance from the center of the axis. Three mounting plates each having a rotation center are provided, and an annular grindstone having a mounting center located on a radial line from the rotation center and at the same distance from the rotation center is attached to each of these mounting plates.
The three mounting plates are rotated at the same angle and in the same direction to make the center of the annular grindstone movable, and the upward facing surfaces of these annular grindstones are set as the same horizontal grinding surface, and the grinding wheels are placed over the grinding surface of each annular grindstone. The present invention provides a grinding machine characterized in that a workpiece to be ground is subjected to surface grinding while being rotated on three annular grindstones rotating in the same direction.
（作用）
各取付盤を同一角度回転させると環状砥石の取
付け中心が移動して垂直中心軸の軸心よりの距離
が変化し、回転する３個の環状砥石上に載置し平
面研削する被研削物の外径に対応して最適状態で
研削することができる。(Function) When each mounting plate is rotated by the same angle, the mounting center of the annular grindstone moves, and the distance from the vertical center axis changes. Grinding can be carried out in the optimum condition according to the outer diameter of the object to be ground.
（実施例）
本発明の実施例を図面について説明すると、機
体１の中央部には垂直中心軸２を回転自在に設け
てあり、この垂直中心軸２の上部に固定した歯車
３に３個の歯車４，４，４をそれぞれ噛合させ、
これら歯車４，４，４に取付盤５をそれぞれ一体
的に固定してあり、前記垂直中心軸２の軸心O1
より各々の取付盤５，５，５の回転中心O2を軸
心O1の回りに周方向３等分した仮想線イ，イ，
イ上で、それぞれ軸心O1より同一距離l1に位置さ
せて設定してあり、垂直中心軸２を回転し、歯車
３、歯車４，４，４を介して取付盤５，５，５を
周方向かつ同一角度、回転中心O1を中心として
同時に回転するよう形成してある。(Embodiment) To explain an embodiment of the present invention with reference to the drawings, a vertical central shaft 2 is rotatably provided in the center of the fuselage 1, and three gears 3 are connected to a gear 3 fixed to the upper part of the vertical central shaft 2. Gears 4, 4, 4 are meshed with each other,
A mounting plate 5 is integrally fixed to each of these gears 4, 4, 4, and the axis O 1 of the vertical central shaft 2 is
From this, imaginary lines A, B, and A, which divide the rotation center O2 of each mounting plate 5, 5, 5 into three equal parts in the circumferential direction around the axis O1 .
They are set at the same distance l 1 from the axis O 1 on each of the mounting plates 5, 5, 5 by rotating the vertical central axis 2, are formed to rotate simultaneously in the circumferential direction and at the same angle around the rotation center O1 .
この場合、前記取付盤５，５，５は前記歯車４
を固定した軸挿嵌部６を有し、この軸挿嵌部６に
砥石取付軸７を嵌挿してあり、これら砥石取付軸
７，７，７の頂端に固定した砥石固定盤８に環状
砥石９を接着等して取付けてある。 In this case, the mounting plates 5, 5, 5 are connected to the gear 4.
A grindstone mounting shaft 7 is fitted into this shaft insertion portion 6, and a circular grindstone is mounted on a grindstone fixing plate 8 fixed to the top ends of these grindstone mounting shafts 7, 7, 7. 9 is attached by gluing etc.
前記砥石取付軸７の下部を間隔筒１０内に嵌挿
し、この間隔筒１０に上部を固定した電動機１１
軸のカツプリング部１２を砥石取付軸７の下端カ
ツプリング部１３と噛合させてあり、電動機１１
を作動させ、砥石取付軸７を介し環状砥石９を回
転させるように形成してある。 An electric motor 11 in which the lower part of the grindstone mounting shaft 7 is inserted into a spacer cylinder 10, and the upper part is fixed to this spacer cylinder 10.
The coupling part 12 of the shaft is engaged with the lower end coupling part 13 of the grindstone mounting shaft 7, and the electric motor 11
is actuated to rotate the annular grindstone 9 via the grindstone mounting shaft 7.
前記環状砥石９，９，９の、各々の取付け中心
O3は前記取付盤５のそれぞれの回転中心O2より
の半径線ロ上で、回転中心O2より同一距離l2に位
置させ偏心させて設定してある。 The mounting center of each of the annular grindstones 9, 9, 9
O 3 is set eccentrically and located on the radius line L from each rotation center O 2 of the mounting plate 5, at the same distance l 2 from the rotation center O 2 .
前記環状砥石９，９，９の上向き面を同一水平
面の研削面９ａとし、各環状砥石９，９，９の研
削面９ａ，９ａ，９ａに亘つて載置する環状の被
研削物ハを、同一方向に回転する３個の環状砥石
９，９，９上において動力下のもとで自由状態で
回転させつつ平面研削し得るよう形成してある。 The upward surfaces of the annular grindstones 9, 9, 9 are the same horizontal grinding surfaces 9a, and an annular grinding object C is placed across the grinding surfaces 9a, 9a, 9a of each annular grindstone 9, 9, 9, It is formed so that surface grinding can be performed while rotating in a free state under power on three annular grindstones 9, 9, 9 rotating in the same direction.
環状の被研削物ハは外径d1を環状砥石９，９，
９の取付け中心O3、換言すれば環状砥石９の中
心を通る円よりも大径とし、各環状砥石９，９，
９の外端を通る円より小径とし、内径d2を各環状
砥石９，９，９の内端を通る円よりも大径として
ある。 The annular workpiece to be ground has an outer diameter d 1 of the annular grindstone 9, 9,
9, in other words, the diameter is larger than the circle passing through the center of the annular grindstone 9, and each annular grindstone 9, 9,
The diameter is smaller than the circle passing through the outer end of the annular grindstone 9, and the inner diameter d2 is larger than the circle passing through the inner end of each annular grindstone 9, 9, 9.
前記垂直中心軸２の軸心O1の回りの隣位の３
等分線イ，イのなす角の２等分線、換言すれば垂
直中心軸２の軸心O1の回りの別の３等分線ニ，
ニ，ニ上で放射方向進退調整自在とした支持ロー
ラ１４，１４，１４を設けてあり、これら支持ロ
ーラ１４，１４，１４は案内杆１５に摺動固定自
在として駒１６に固定してあり、これら支持ロー
ラ１４，１４，１４は被研削物ハの外周縁に当接
自在として研削中に被研削物ハが飛び出さないよ
うにし、かつ被研削物ハに抵抗を付与しないよう
にしてある。 Adjacent 3 around the axis O 1 of the vertical central axis 2
Equisector A, bisector of the angle formed by A, in other words, another trisector 2 around axis O 1 of vertical central axis 2,
Support rollers 14, 14, 14 are provided on d and d, and are adjustable in radial directions. These support rollers 14, 14, 14 are able to come into contact with the outer peripheral edge of the object to be ground to prevent the object to be ground from jumping out during grinding and to avoid imparting resistance to the object to be ground.
前記取付盤５，５，５を同時、同角度、同方向
に回転させるよう操作ハンドル１７により回動す
る軸１８を設け、この軸１８に固定した傘歯車１
９と噛合する傘歯車２０を上端部に固設した伝達
軸２１の下端の鎖歯車２２と前記垂直中心軸２の
下端の鎖歯車２３とにチエン２４を掛装させてあ
り、操作ハンドル１７を回し伝達軸２１、チエン
２４を介して垂直中心軸２を回転させ、歯車３、
歯車４，４，４を介して取付盤５，５，５を同
時、同角度、同方向に回転させ得るように形成し
てある。 A shaft 18 is provided which is rotated by an operating handle 17 so as to rotate the mounting plates 5, 5, 5 at the same time, at the same angle, and in the same direction, and a bevel gear 1 is fixed to this shaft 18.
A chain 24 is hung between a chain gear 22 at the lower end of a transmission shaft 21 having a bevel gear 20 fixed to its upper end that meshes with the vertical center shaft 2, and a chain gear 23 at the lower end of the vertical central shaft 2. The vertical central shaft 2 is rotated through the rotation transmission shaft 21 and the chain 24, and the gear 3,
The mounting plates 5, 5, 5 are formed so that they can be rotated simultaneously, at the same angle, and in the same direction via the gears 4, 4, 4.
図中、２５，２５，２５は研削液吹出し管、２
６は排液管、２７は制御部であつて、２８は電源
ランプ、２９は非常停止ボタン、３０は電動機始
動ボタン、３１は電動機停止ボタン、３２は切削
液吹出し用ポンプ始動ボタン、３３は同・停止ボ
タン、３４は速度制御操作器、３５は周被数計、
３６はタイマーである。 In the figure, 25, 25, 25 are grinding fluid blowout pipes, 2
6 is a drain pipe, 27 is a control unit, 28 is a power lamp, 29 is an emergency stop button, 30 is a motor start button, 31 is a motor stop button, 32 is a pump start button for blowing out cutting fluid, and 33 is the same.・Stop button, 34 is a speed control operator, 35 is a lap counter,
36 is a timer.
本発明は前記のように構成するから、被研削物
ハを環状砥石９，９，９に亘つて載置し、電動機
１１，１１，１１を作動させ、環状砥石９，９，
９を同方向、同速度でを回転させると、重力で接
触する被研削物ハは、環状砥石９，９，９との摩
擦接触で回転しながら研削される（第３図参照）。 Since the present invention is configured as described above, the object to be ground is placed across the annular grindstones 9, 9, 9, the electric motors 11, 11, 11 are operated, and the annular grindstones 9, 9,
When the grinding wheels 9 are rotated in the same direction and at the same speed, the object to be ground, which comes into contact with gravity, is ground while rotating due to frictional contact with the annular grindstones 9, 9, 9 (see FIG. 3).
即ち、環状砥石９，９，９の回転につれて被研
削物ハは自由状態でつり回りする。 That is, as the annular grindstones 9, 9, and 9 rotate, the object to be ground is suspended in a free state.
片面を研削した被研削物ハは、研削した面を規
準にした反対面を他装置により研削してもよい
が、反転させて本発明研削盤による研削を行つて
もよい。 The object to be ground C, which has been ground on one side, may be ground on the opposite side with respect to the ground surface using another device, or may be reversed and ground using the grinding machine of the present invention.
次に、被研削物の形状、大きさ、環状砥石の状
態等によつて操作ハンドル１７を回し、取付盤
５，５，５を同角度、同一方向に回転させ、環状
砥石９，９，９の中心を移動させて最適研削加工
状態とすることができ、このようにして恰も目立
てしながら被研削物を研削加工することができ
る。 Next, depending on the shape and size of the object to be ground, the condition of the annular grinding wheel, etc., turn the operating handle 17 to rotate the mounting plates 5, 5, 5 at the same angle and in the same direction, and the annular grinding wheels 9, 9, 9 The center of the grinding machine can be moved to obtain the optimum grinding state, and in this way, the object to be ground can be ground while being sharpened.
本発明研削盤は推力軸受の上面、下面の研削、
鋼材切断用スリツタの両側面の研削、オイルシー
ル構成部品の面研削等に用いて好適である。 The grinding machine of the present invention can grind the upper and lower surfaces of thrust bearings.
Suitable for use in grinding both sides of a slitter for cutting steel materials, surface grinding of oil seal components, etc.
（発明の効果）
本発明は取付盤の回転中心に対し環状砥石の取
付け中心を偏心させ、取付盤を回転させて垂直中
心軸の軸心に対する環状砥石の中心距離を変化さ
せ研削性の最良状態になし得、被研削物を３個の
砥石の上面にのせて砥石を回転させるだけで、被
研削物の被研削面を高精度に平面研削できる。特
に被研削物には何等の機械的加圧機構も作用され
ず、水平の複雑な多方向からの環状砥石の接触で
研削された面の仕上りは、後工程のラツピングを
容易にする等高精度となり、面精度を１ミクロン
以下とすることができ、被研削物により恰も環状
砥石が目立てされるようになり、軟鋼材、難削
材、極軽量材であつても高能率、高精度かつ安定
した同一仕上げ面が得られる。(Effect of the invention) The present invention makes the mounting center of the annular grindstone eccentric to the rotation center of the mounting plate, and rotates the mounting plate to change the center distance of the annular grindstone with respect to the axis of the vertical central axis, thereby achieving the best grinding performance. By simply placing the object to be ground on the upper surface of three grindstones and rotating the grindstones, the surface to be ground of the object to be ground can be ground with high precision. In particular, no mechanical pressure mechanism is applied to the object to be ground, and the surface is ground by contact with a circular grindstone from multiple horizontal directions, resulting in a high precision finish that facilitates lapping in the subsequent process. As a result, the surface accuracy can be reduced to 1 micron or less, and the annular whetstone stands out depending on the object to be ground, making it highly efficient, highly accurate, and stable even when working with mild steel, difficult-to-cut materials, and extremely lightweight materials. The same finished surface can be obtained.
第１図は本発明研削盤の平面図、第２図は同・
要部切欠側面図、第３図は研削加工状態説明図で
ある。
１……機体、２……垂直中心軸、５……取付
盤、９……取付盤、９ａ……研削面、イ……仮想
線、ハ……被研削物、O1……軸心、O2……回転
中心、O3……取付け中心。
Figure 1 is a plan view of the grinding machine of the present invention, and Figure 2 is the same.
A cutaway side view of the main part, and FIG. 3 is an explanatory view of the grinding process state. 1... Machine body, 2... Vertical central axis, 5... Mounting board, 9... Mounting board, 9a... Grinding surface, A... Virtual line, C... Grinding object, O 1 ... Axis center, O 2 ... Center of rotation, O 3 ... Center of installation.
Claims (1)
中心軸の軸心の回りを周方向３等分した仮想線上
でそれぞれ前記軸心より同一距離に回転中心を有
する３個の取付盤を設け、これら取付盤のそれぞ
れに回転中心より半径線上かつ回転中心より同一
距離に取付け中心を有する環状砥石を取付け、３
個の前記取付盤を同角度、同方向に回転させ環状
砥石の中心を移動自在とし、これら環状砥石の上
向き面を同一水平面の研削面とし、各環状砥石の
研削面上に亘つて載置する被研削物を、同一方向
に回転する３個の環状砥石上において回転させつ
つ平面研削するようにしたことを特徴とする研削
盤。1 A vertical central axis is provided in the center of the aircraft, and three mounting plates each having a rotation center at the same distance from the axis are provided on an imaginary line that divides the axis of this vertical central axis into three equal parts in the circumferential direction. , Attach an annular grindstone having a mounting center on each of these mounting plates on a radial line from the center of rotation and at the same distance from the center of rotation, 3.
The above-mentioned mounting plates are rotated at the same angle and in the same direction to make the center of the annular grindstone movable, and the upward facing surfaces of these annular grindstones are set as the same horizontal grinding surface, and are placed on the grinding surface of each annular grindstone. A grinding machine characterized in that a workpiece to be ground is subjected to surface grinding while being rotated on three annular grindstones rotating in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16438187A JPS6411757A (en) | 1987-07-01 | 1987-07-01 | Grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16438187A JPS6411757A (en) | 1987-07-01 | 1987-07-01 | Grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6411757A JPS6411757A (en) | 1989-01-17 |
| JPH0325297B2 true JPH0325297B2 (en) | 1991-04-05 |
Family
ID=15792046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16438187A Granted JPS6411757A (en) | 1987-07-01 | 1987-07-01 | Grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6411757A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH031748U (en) * | 1989-05-31 | 1991-01-09 | ||
| JP2644058B2 (en) * | 1989-11-10 | 1997-08-25 | 不二越機械工業株式会社 | Wafer processing equipment |
| JPH11254314A (en) * | 1998-03-10 | 1999-09-21 | Speedfam Co Ltd | Work's face grinding device |
-
1987
- 1987-07-01 JP JP16438187A patent/JPS6411757A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6411757A (en) | 1989-01-17 |
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