JPS61257751A - Grinding tool and grinding attachment - Google Patents

Grinding tool and grinding attachment

Info

Publication number
JPS61257751A
JPS61257751A JP9515385A JP9515385A JPS61257751A JP S61257751 A JPS61257751 A JP S61257751A JP 9515385 A JP9515385 A JP 9515385A JP 9515385 A JP9515385 A JP 9515385A JP S61257751 A JPS61257751 A JP S61257751A
Authority
JP
Japan
Prior art keywords
grinding
grindstone
stone
holder
whetstone
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
Application number
JP9515385A
Other languages
Japanese (ja)
Inventor
Teruo Hirase
平瀬 輝雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Nippon Koki KK
Original Assignee
Shin Nippon Koki KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shin Nippon Koki KK filed Critical Shin Nippon Koki KK
Priority to JP9515385A priority Critical patent/JPS61257751A/en
Publication of JPS61257751A publication Critical patent/JPS61257751A/en
Pending legal-status Critical Current

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  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

PURPOSE:To automate smoothing operation in a die manufacturing process by providing a grinding tool and a grinding attachment for use in the die manufacturing with means for continuously keeping a grinding stone in surface contact with the work surface in the normal direction and rotating the same at a high speed. CONSTITUTION:A grinding stone 1 includes a ring-shaped base 6 and a plurality of stone chips 9 composed of borazon 10 and stone base material 11 and attached to the base 6 annularly at equal intervals through an elastic member A composed of a hard elastic material 7 and a soft elastic material 8. A stone holder 3 for holding the grinding stone 1 and a wheel spindle 4 are coupled to each other through a universal joint 5. The wheel spindle 4 has a spherical extreme end 4a which is rotatably fitted into a central spherical depression 3a of the stone holder 3. A locking pin 12 extends through the depression 3a so as to transmit rotational movement of the wheel spindle 4 to the stone holder 3. Furthermore, there is provided a constant-pressure urging device D in which a moving rotary shaft 22 is vertically movably supported by a frame 24 through a bearing 26 and the shaft 22 is urged downwardly by a spring 21.

Description

【発明の詳細な説明】 / 話 Ki  → 軒 へ 本発明は、金型製造用に適した研削工具および研削アタ
ッチメントに関するものである。
[Detailed Description of the Invention] / Story Ki → Eaves The present invention relates to a grinding tool and a grinding attachment suitable for mold manufacturing.

〈従来技術〉 従来、金型工場では、機械での型彫り作業以外はすべて
手作業による製造と言っても過言ではない。特に高い熟
練技術が求められる型彫り作業後の“平滑作業”とそれ
に続く“すり合せ作業”とはまったくの手作業である。
<Prior art> It is no exaggeration to say that traditionally, in mold factories, all manufacturing was done by hand, except for the die carving work performed by machines. The "smoothing work" after the die-carving work, which requires a particularly high degree of skill, and the subsequent "grinding work" are completely manual labor.

手作業は苦痛で辛い作業でもあり、その上作業環境も良
くないので、労働意欲も減退し、出来上がってくる製品
の品質にも影響を及ぼす問題となっている。
Manual work is painful and difficult, and the working environment is not good, which reduces motivation to work and affects the quality of finished products.

く  目  的  〉 そこで、本発明は、金型製造工程中の平滑作業(工程)
を自動化できる研削工具および研削アタッチメントの提
供を目的としている。
Purpose 〉 Therefore, the present invention aims at improving the smoothing work (process) during the mold manufacturing process.
The aim is to provide grinding tools and grinding attachments that can automate the process.

〈実施例〉 まず、金型の自由曲面を研削する研削工具および研削ア
タッチメントの砥石に必要とされる条件は次の通りであ
る。すなわち、第9図(a)、(b)の如(、 (イ)砥石1は、研削面2に対して面接触する必要があ
る。
<Example> First, the conditions required for a grinding tool for grinding a free-form surface of a mold and a grinding wheel for a grinding attachment are as follows. That is, as shown in FIGS. 9(a) and 9(b), (a) The grindstone 1 needs to be in surface contact with the grinding surface 2.

(ロ)砥石1の研削面2への接触面は、研削面2に対し
て常に法線方向に向かなければならない。
(b) The contact surface of the grinding wheel 1 with the grinding surface 2 must always face in the normal direction to the grinding surface 2.

(ハ)砥石1は、高速でかつ安定した回転をしなければ
ならない。
(c) The grindstone 1 must rotate at high speed and stably.

(ニ)砥石1が摩耗しても摩耗分を補う機能が必要であ
る。
(d) Even if the grindstone 1 wears out, a function is required to compensate for the wear.

上記の条件を満足させる研削工具は、第10図(a)、
(b)の如く、砥石1、砥石ホルダ3および砥石軸4と
から構成される。
A grinding tool that satisfies the above conditions is shown in Fig. 10(a).
As shown in (b), it is composed of a grindstone 1, a grindstone holder 3, and a grindstone shaft 4.

まず砥石ホルダ3は、砥石1を研削面2に対して法線方
向に向かせる役割を持つ必要がある。このため砥石ホル
ダ3と砥石軸4との間に設けられる自在継手5には、第
10図(a)のユニバーサル・ジヨイントタイプと、第
10図(b)の球面軸受タイプがある。そして重要なこ
とは、このような構造をした研削工具でどのようにして
うまく研削面2に沿わせ、かつ高速で安定した回転をさ
せるかということ、つまり自在継手5の中心(自由度の
中心)をどこに置くかということである。
First, the grindstone holder 3 needs to have the role of directing the grindstone 1 in the direction normal to the grinding surface 2 . For this reason, the universal joint 5 provided between the grindstone holder 3 and the grindstone shaft 4 includes a universal joint type shown in FIG. 10(a) and a spherical bearing type shown in FIG. 10(b). What is important is how to properly align the grinding tool with the grinding surface 2 and rotate it stably at high speed using a grinding tool with such a structure. ) is to be placed.

この点については、第11図(a)、(b)の如く、砥
石軸4の一端に研削面2と平行な力Pを作用させて砥石
1を移動させると、pが大ぎい第11図(a)の場合、
砥石1は研削面2に沿って行かずに、点線で示すように
研削面2から外れてしまい、第11図(b)のようにp
の小さい場合に限って砥石1を研削面2に沿って移動さ
せることができる。今度は、第12図(a)、(b)の
様に砥石軸4を回転させてみると、第12図(a)の場
合、砥石1は砥石軸4に追従して回転するのではなく、
点線で示すように自在継手5の中心の周りを回転する。
Regarding this point, when the grinding wheel 1 is moved by applying a force P parallel to the grinding surface 2 to one end of the grinding wheel shaft 4 as shown in FIGS. 11(a) and 11(b), p becomes too large. In the case of (a),
The grindstone 1 does not go along the grinding surface 2, but comes off the grinding surface 2 as shown by the dotted line, and as shown in FIG.
The grindstone 1 can be moved along the grinding surface 2 only when . This time, when we try to rotate the whetstone shaft 4 as shown in Figures 12(a) and (b), in the case of Figure 12(a), the whetstone 1 does not rotate following the whetstone shaft 4. ,
Rotate around the center of the universal joint 5 as shown by the dotted line.

第12図(b)の様にpが小さい場合のみ、砥石軸4の
回転を砥石1に伝えることができる。
The rotation of the grindstone shaft 4 can be transmitted to the grindstone 1 only when p is small as shown in FIG. 12(b).

結局、一連の実験により自在継手5の中心(自由度の中
心)を砥石ホルダ3と砥石1を一体化したものの重心付
近に設けた方が、砥石軸4の移動運動、回転運動を確実
に伝えられることが明らかになった。また自由度を持た
せる構造は、どちらのタイプでも問題はないが設計、製
作面から言えば、“ユニバーサル・ジヨイントタイプ”
よりも“球面軸受タイプ”の方が容易に上記の事を実現
できる。
In the end, a series of experiments revealed that it is better to set the center of the universal joint 5 (the center of the degrees of freedom) near the center of gravity of the integrated grinding wheel holder 3 and grinding wheel 1 to more reliably transmit the translational and rotational movements of the grinding wheel shaft 4. It became clear that In addition, there is no problem with either type of structure that provides flexibility, but from a design and manufacturing perspective, the "universal joint type"
The above can be achieved more easily with the ``spherical bearing type.''

次に第1,2図の大径用研削工具と、第3.4図の小径
用研削工具の実施例を説明すると、砥石1は、ドーナツ
形のベース6に硬質弾性材(ゴム)7′および軟質弾性
材(スポンジ)8からなる弾性体Aを介して複数の砥石
チップ9、即ちホラシン10および砥石母材11が等ピ
ッチで円形に装着されて構成され、前記砥石1をボルト
で保持する回転砥石ホルダ3と回転砥石軸4とは砥石ホ
ルダ3の中央部に配された自在継手5を介して首振自在
に連動連結されている。
Next, the embodiments of the large-diameter grinding tool shown in Figs. 1 and 2 and the small-diameter grinding tool shown in Figs. 3 and 4 will be described. A plurality of grindstone chips 9, ie, horasin 10, and a grindstone base material 11 are mounted in a circular shape at equal pitches through an elastic body A made of a soft elastic material (sponge) 8, and the grindstone 1 is held by bolts. The rotary whetstone holder 3 and the rotary whetstone shaft 4 are interlocked and connected via a universal joint 5 disposed in the center of the whetstone holder 3 so as to be freely swingable.

なお上記において、砥石軸4の先端部4aは球状に形成
され、球面軸受を兼ねる砥石ホルダ3の中央球面凹部3
aへ回転自在に嵌合されている。
In the above, the tip 4a of the grinding wheel shaft 4 is formed into a spherical shape, and the central spherical recess 3 of the grinding wheel holder 3 also serves as a spherical bearing.
It is rotatably fitted to a.

また砥石軸4の回転運動が砥石ホルダ3へ伝達されるよ
うに、回り止めピン12が四部3aに差し渡されて固定
され、このピン12に先端部4aの溝4bが摺動自在に
嵌合され、砥石軸4の先端部4aは、球面座を有するカ
バー13で砥石ホルダ3から外れないようにスナップリ
ング14で固定されている。
Further, in order to transmit the rotational movement of the grinding wheel shaft 4 to the grinding wheel holder 3, a detent pin 12 is fixed across the four parts 3a, and the groove 4b of the tip part 4a is slidably fitted into this pin 12. The tip end 4a of the grindstone shaft 4 is fixed with a snap ring 14 so that it does not come off the grindstone holder 3 through a cover 13 having a spherical seat.

なお、小径用研削工具においては弾性体はゴム7のみか
らなり、砥石1は砥石ホルダ3の円錐部3bにポル)3
cで固定されている。
In addition, in the grinding tool for small diameters, the elastic body consists only of the rubber 7, and the grinding wheel 1 is attached to the conical portion 3b of the grinding wheel holder 3.
It is fixed at c.

自由曲面に使用する砥石1は、砥石チップ9をセグメン
ト状にしたカップ形タイプの方が、研削性も良好であり
、簡単に凸型、凹型の研削面2に沿わせることができる
。この場合、砥石1の接触面を、第13図(b)の如く
研削面2に対して面接触することが不可欠である。
As for the grindstone 1 used for free-form surfaces, a cup-shaped type with a grindstone tip 9 in the form of segments has better grinding properties and can be easily applied to a convex or concave grinding surface 2. In this case, it is essential that the contact surface of the grindstone 1 be in surface contact with the grinding surface 2 as shown in FIG. 13(b).

その理由は、研削面2の表面粗さ及び研削面2の形状精
度が悪くなることと、砥石1の片べりを招き、耐摩耗性
を悪化させるからである。なお、第13図(a)は、砥
石1と研削面2とが線接触となり良くない状態を示して
いる。
The reason for this is that the surface roughness of the grinding surface 2 and the shape accuracy of the grinding surface 2 deteriorate, and the grindstone 1 slips to one side, which deteriorates the wear resistance. Note that FIG. 13(a) shows a situation where the grinding wheel 1 and the grinding surface 2 are in line contact, which is not good.

上記の理由により面接触ができるように考えだされた本
発明め砥石1を略図化したのが第13図(c)、(d)
である。すなわち、ドーナツ状のベース6にやはり同じ
ドーナツ状の弾性体Aが貼着され、この弾性体に等間隔
で砥石チップ9がマウントされている。
Figures 13(c) and 13(d) are schematic diagrams of the grinding wheel 1 of the present invention, which was designed to enable surface contact for the above reasons.
It is. That is, the same donut-shaped elastic body A is attached to the donut-shaped base 6, and grindstone chips 9 are mounted on this elastic body at equal intervals.

上記のような構造を持つ砥石1の上方がら圧力をかける
と、弾性体の変形により砥石チップ9は研削面2に面接
触する。この時、圧力を一定にしておけば、摩耗した分
量だけ砥石1が追い込まれるか呟研削面2は常に一定の
切込みで研削される。同じ種類の砥石1を使用する場合
、径が小さくなると、同じ周速を得んがためにより高速
で回転させなければならない。一方、大径砥石1の場合
と比較して、第14図(a)の様に「研削面2に沿いに
くい」、第14図(b)の様に[砥石が踊って研削どこ
ろではない」ということになりがちである。
When pressure is applied from above to the grindstone 1 having the above-described structure, the grindstone tip 9 comes into surface contact with the grinding surface 2 due to deformation of the elastic body. At this time, if the pressure is kept constant, the grinding wheel 1 is driven by the amount of wear, or the grinding surface 2 is always ground with a constant depth of cut. When using the same type of grindstone 1, if the diameter becomes smaller, the grindstone must be rotated at a higher speed in order to obtain the same circumferential speed. On the other hand, compared to the case of the large-diameter grindstone 1, as shown in Fig. 14 (a), it is "difficult to follow the grinding surface 2", and as shown in Fig. 14 (b), [the grindstone dances and it is difficult to grind]. This tends to be the case.

これらの現象は、“こまの原理”を使えば解決できる。These phenomena can be solved by using the "spinning top principle".

第15図(a)、(b)の如く、ある円板Bの中心に軸
Cを設け、それを中心にして回転させれば紬Cはある方
向に向き、外力でその方向を変えようとしてもその方向
を維持口ようとする作用がある。研削工具の場合、第1
5図(c)の如く、砥石ホルダ3がこまの円板に相当し
、こまの軸が砥石軸に相当する。砥石1はこまの円板の
下に取付ける格好になる。
As shown in Figures 15 (a) and (b), if an axis C is provided at the center of a disk B and the axis C is rotated around it, the pongee C will face in a certain direction, and if an external force is used to change the direction, It also has the effect of trying to maintain that direction. For grinding tools, the first
As shown in FIG. 5(c), the grindstone holder 3 corresponds to the disk of the top, and the spindle of the top corresponds to the grindstone shaft. Grinding wheel 1 is installed under the disc of the spinning top.

そして、これは、第3,4図の小径用研削工具の構造と
一致する。すなわち、つばを広げた格好の砥石ホルダ3
の下に小径用の砥石1が取付けられ、砥石軸4の先端部
4aの中心は砥石ホルダ3と砥石1の重心付近に設けら
れている。
This corresponds to the structure of the small-diameter grinding tool shown in FIGS. 3 and 4. In other words, the whetstone holder 3 looks like it has a widened brim.
A small-diameter grindstone 1 is attached below, and the center of the tip 4a of the grindstone shaft 4 is located near the center of gravity of the grindstone holder 3 and the grindstone 1.

次に本発明研削工具による研削以外の運動を説明すると
、第16図(a)、(b)の如く、高速回転させながら
Z軸方向から研削面2にアプローチすることができる。
Next, explaining the motion other than grinding by the grinding tool of the present invention, as shown in FIGS. 16(a) and 16(b), the grinding surface 2 can be approached from the Z-axis direction while rotating at high speed.

第16図(c)、(d)の如く、高速回転させながら研
削面2からZ軸方向に沿って逃げることができる。第1
6図(e)、(f)の如く、砥石軸4を横に向けてワー
クピースWの側面に高速回転しながらアプローチするこ
とができ、あるいは逃げることもできる。
As shown in FIGS. 16(c) and 16(d), it is possible to escape from the grinding surface 2 along the Z-axis direction while rotating at high speed. 1st
As shown in FIGS. 6(e) and 6(f), the grinding wheel shaft 4 can be turned sideways to approach the side surface of the workpiece W while rotating at high speed, or it is possible to escape.

また本発明の研削工具による研削可能曲面は、大径用砥
石1(80φ)においては、凸型研削面2は約8ORま
で、凹型研削面2は約10ORまでである。
Further, in the large-diameter grindstone 1 (80φ), the curved surfaces that can be ground by the grinding tool of the present invention are up to about 8OR for the convex grinding surface 2 and up to about 10OR for the concave grinding surface 2.

また小径用砥石」(40φ)においては、凸型研削面2
は約4ORまで、凹型研削面2は約5ORまでである。
In addition, for the "small diameter grindstone" (40φ), the convex grinding surface 2
is up to about 4OR, and the concave grinding surface 2 is up to about 5OR.

上記したように、自由曲面を研削する必要条件のうち、
(イ)、(ロ)、(ハ)は研削工具で満足される。そし
て残りの(ニ)は、研削工具を含む研削アタッチメント
全体で満足される。すなわち、第5図の実施例の如く研
削アタッチメントは、砥石軸4が軸方向伸縮自在な可動
回転軸22に固定され、該可動回転軸22を砥石ホルダ
3側(研削面2側)へほぼ一定圧力で付勢するための定
圧付勢装置りが設けられてなっている。
As mentioned above, among the necessary conditions for grinding free-form surfaces,
(a), (b), and (c) are satisfied with a grinding tool. The remaining (d) is satisfied by the entire grinding attachment including the grinding tool. That is, in the grinding attachment as in the embodiment shown in FIG. 5, the grinding wheel shaft 4 is fixed to a movable rotating shaft 22 that is freely expandable and retractable in the axial direction, and the movable rotating shaft 22 is moved almost constantly toward the grinding wheel holder 3 side (grinding surface 2 side). A constant pressure biasing device is provided for biasing with pressure.

なお、定圧付勢装置りとしては、バネによるもの、エア
シリンダによるもの、油圧シリンダによるものに分ける
ことができる。
Note that constant pressure biasing devices can be divided into those using springs, those using air cylinders, and those using hydraulic cylinders.

第5図は定圧付勢装置りがバネ21によるものの場合で
ある。図において、Tは研削工具、23は可動回転軸2
2と砥石軸4とを固定するジヨイント、24は可動回転
軸22とキー25で昇降自在に連動連結された回転7レ
ームで、該フレーム24には軸受26を介して可動回転
軸22が昇降自在に支承されている。そして可動回転軸
22の上部のバネ座27とフレーム24の上向面との開
に前記バネ21が介装されることにより可動回転軸22
すなわち研削工具は下方へ付勢されている。
FIG. 5 shows a case where the constant pressure biasing device is based on a spring 21. In the figure, T is a grinding tool, 23 is a movable rotating shaft 2
2 and the grindstone shaft 4, and 24 is a rotating 7 frame which is interlocked and connected to the movable rotating shaft 22 and the key 25 so that it can be raised and lowered, and the movable rotating shaft 22 is attached to the frame 24 through a bearing 26 so that it can be raised and lowered. is supported by. The spring 21 is interposed between the spring seat 27 at the upper part of the movable rotation shaft 22 and the upper surface of the frame 24, so that the movable rotation shaft 22
That is, the grinding tool is urged downward.

そしてフレーム24の上端のアーバ28は、工作機械の
主軸ヘッド29の回転主軸30に着脱自在に固定されて
いる。Eは研削工具の昇降ストローク、Fは研削工具の
勾配ストロークである。
The arbor 28 at the upper end of the frame 24 is detachably fixed to a rotating spindle 30 of a spindle head 29 of the machine tool. E is the lifting stroke of the grinding tool, and F is the slope stroke of the grinding tool.

上記の研削アタッチメントを有する工作機械において、
第6図(a)の如く、研削工具Tが昇降ストロークE内
の中間に位置するぐらいまで主軸ヘッド29を下降させ
、第6図1)の如く、研削工具を研削面2に押え付ける
。この結果、バネ21が縮み、バネ座27を通じて研削
工具Tを研削面2に押え付けることができるので、砥石
1が摩耗してもそれを常に補うことができる。
In a machine tool with the above grinding attachment,
As shown in FIG. 6(a), the spindle head 29 is lowered until the grinding tool T is located in the middle of the lifting stroke E, and the grinding tool is pressed against the grinding surface 2 as shown in FIG. 6(1). As a result, the spring 21 is compressed and the grinding tool T can be pressed against the grinding surface 2 through the spring seat 27, so that even if the grindstone 1 wears out, it can always be compensated for.

次に第7図により、定圧付勢装置りにエアシリンダを用
いたものの実施例を説明すると、図において、31は単
動式エアシリンダ、32はそのピストン、33はその復
帰バネ、34はピストンロッドであり、その下端は連結
バー35と軸受36とビン37を介して可動回転軸22
に連結され、これにより、ロッド34の昇降と可動回転
軸22の昇降とが連動され、可動回転軸22の回転はロ
ッド34に連動されないように構成されている。
Next, referring to FIG. 7, an embodiment using an air cylinder as a constant pressure biasing device will be explained. In the figure, 31 is a single-acting air cylinder, 32 is its piston, 33 is its return spring, and 34 is the piston. It is a rod, and its lower end connects to the movable rotating shaft 22 via a connecting bar 35, a bearing 36, and a pin 37.
As a result, the vertical movement of the rod 34 and the vertical movement of the movable rotating shaft 22 are linked, and the rotation of the movable rotating shaft 22 is not linked to the rod 34.

38aはエア源、38bはフィルタ、38cは圧力調整
装置、39は回り止めで々40aはスプライン軸、40
bはキーである。
38a is an air source, 38b is a filter, 38c is a pressure regulator, 39 is a detent, 40a is a spline shaft, 40
b is a key.

上記において、その池の構成は第5図の実施例と同様で
ある。
In the above, the configuration of the pond is similar to the embodiment shown in FIG.

ある圧力のエアでピストン32を押え付け、ピストンを
下げようとする。その力は、ロッド34を通じて連結バ
ー35を経由してスプライン軸である可動回転軸22に
伝達され、研削工具を押し下げる。これにより研削工具
をある圧力で研削面2に押え付けることになる。
The piston 32 is pressed down with air at a certain pressure and attempts to lower the piston. The force is transmitted through the rod 34 and the connecting bar 35 to the movable rotating shaft 22, which is a splined shaft, and pushes down the grinding tool. This causes the grinding tool to be pressed against the grinding surface 2 with a certain pressure.

次に第8図により定圧付勢装置りに復動式油圧シリング
41を用いたものの実施例を説明すると、シリンダ41
の上室42と下室43は定圧装置Gに接続され、これは
、夫々リリーフ弁44,45、減圧弁46.47、流量
調整弁48、止め弁49からなり、油圧源50に接続さ
れている。
Next, referring to FIG. 8, an example of using a double-acting hydraulic cylinder 41 as a constant pressure biasing device will be described.
The upper chamber 42 and the lower chamber 43 are connected to a constant pressure device G, which includes relief valves 44 and 45, pressure reducing valves 46 and 47, a flow rate adjustment valve 48, and a stop valve 49, respectively, and is connected to a hydraulic source 50. There is.

このため、ピストン41aは常に定圧に保持されている
ので、研削面2の凹凸に従ってピストン41aは昇降し
、研削工具も昇降する。しかも研削工具は常に定圧で研
削面2に押し付けられているので、砥石1が摩耗した分
を補うことができる。
Therefore, since the piston 41a is always maintained at a constant pressure, the piston 41a moves up and down according to the unevenness of the grinding surface 2, and the grinding tool also moves up and down. Moreover, since the grinding tool is always pressed against the grinding surface 2 with a constant pressure, it is possible to compensate for the wear of the grindstone 1.

その池の構成は第7図の実施例と同様である。The configuration of the pond is similar to the embodiment shown in FIG.

なお、第8図において、エアシリングによる場合と同様
に単動式のシリンダによって加圧できるようにしてもよ
い。
In addition, in FIG. 8, the pressure may be applied by a single-acting cylinder as in the case of using an air cylinder.

また第8図の復動式の油圧シリング41と定圧装置Gと
を結合し、自己倣い機能を持たせているので、倣い制御
あるいは数値制御によらなくても研削工具を研削面2に
沿わせながら研削していくことも可能である。
In addition, since the double-acting hydraulic sill 41 and the constant pressure device G shown in Fig. 8 are combined to provide a self-tracing function, the grinding tool can be aligned with the grinding surface 2 without using tracing control or numerical control. It is also possible to continue grinding.

〈効果〉 以上の説明から明らかな通り、本発明においては、砥石
は、ベースに弾性体を介して複数の砥石チップが等ピッ
チで円形に装着されて構成され、前記砥石を保持する回
転砥石ホルダと回転砥石軸とは砥石ホルダの中央部に配
された自在継手を介して首振自在に連動連結されたこと
を特徴とする研削工具に関するものである。
<Effects> As is clear from the above description, in the present invention, the grindstone is configured by having a plurality of grindstone chips circularly attached to a base via an elastic body at equal pitches, and a rotating grindstone holder that holds the grindstone. This invention relates to a grinding tool characterized in that the rotary grindstone shaft and the grindstone shaft are oscillatably connected via a universal joint disposed in the center of the grindstone holder.

また、本発明においては、砥石は、ベースに弾性体を介
して複数の砥石チップが等ピッチで円形に装着されて構
成され、前記砥石を保持する回転砥石ホルダと回転砥石
軸とは砥石ホルダの中央部に配された自在継手を介して
首振自在に連動連結され、前記砥石軸を砥石ホルダ側へ
ほぼ一定圧力で付勢するための定圧付勢装置が設けられ
たことを特徴とする研削アタッチメントに関するもので
ある。
Further, in the present invention, the grindstone is configured such that a plurality of grindstone chips are circularly attached to a base via an elastic body at equal pitches, and a rotating grindstone holder that holds the grindstone and a rotating grindstone shaft are connected to the grindstone holder. Grinding characterized by being provided with a constant pressure biasing device that is interlocked and oscillatably connected via a universal joint disposed in the center and biases the grindstone shaft toward the grindstone holder with a substantially constant pressure. It is about attachment.

したがって、本発明によると、金型製造工程中の平滑作
業(工程)を自動化できる研削工具および研削アタッチ
メントを提供できる優れた効果がある。
Therefore, the present invention has the excellent effect of providing a grinding tool and a grinding attachment that can automate the smoothing operation (process) during the mold manufacturing process.

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

第1図は本発明研削工具の第一実施例の断面図、第2図
は同底面図、第3図は同じく第二実施例の断面図、第4
図は同底面図であり、第5図は本発明研削アタッチメン
トの第一実施例の断面図、第6図(a)、(b)はその
作用説明用略式側面図、第7図は同じく研削アタッチメ
ントの第二実施例の構成図、第8図は同じく研削アタッ
チメントの第三実施例の構成図であり、第9図(a)な
いし第16図(f)は本発明研削工具の説明用略図であ
る。 A:弾性体、D:定圧付勢装置、1:砥石、2:研削面
、3:砥石ホルダ、4:砥石軸、5:自在継手、6:ベ
ース、7:硬質弾性材、8:軟質弾性材、9:砥石チッ
プ、22:可動回転軸。
FIG. 1 is a sectional view of the first embodiment of the grinding tool of the present invention, FIG. 2 is a bottom view of the same, FIG. 3 is a sectional view of the second embodiment, and FIG.
The figure is a bottom view of the same, FIG. 5 is a sectional view of the first embodiment of the grinding attachment of the present invention, FIGS. 6(a) and (b) are schematic side views for explaining its operation, and FIG. FIG. 8 is a configuration diagram of a second embodiment of the attachment, and FIG. 8 is a configuration diagram of a third embodiment of the grinding attachment, and FIGS. 9(a) to 16(f) are schematic diagrams for explaining the grinding tool of the present invention. It is. A: Elastic body, D: Constant pressure biasing device, 1: Grinding wheel, 2: Grinding surface, 3: Grinding wheel holder, 4: Grinding wheel shaft, 5: Universal joint, 6: Base, 7: Hard elastic material, 8: Soft elasticity Material, 9: Grindstone chip, 22: Movable rotating shaft.

Claims (2)

【特許請求の範囲】[Claims] (1)砥石は、ベースに弾性体を介して複数の砥石チッ
プが等ピッチで円形に装着されて構成され、前記砥石を
保持する回転砥石ホルダと回転砥石軸とは砥石ホルダの
中央部に配された自在継手を介して首振自在に連動連結
されたことを特徴とする研削工具。
(1) A whetstone is composed of a plurality of whetstone chips mounted on a base in a circle at equal pitches through elastic bodies, and a whetstone holder that holds the whetstone and a whetstone shaft are arranged in the center of the whetstone holder. A grinding tool characterized in that the tool is interlocked and connected through a universal joint.
(2)砥石は、ベースに弾性体を介して複数の砥石チッ
プが等ピッチで円形に装着されて構成され、前記砥石を
保持する回転砥石ホルダと回転砥石軸とは砥石ホルダの
中央部に配された自在継手を介して首振自在に連動連結
され、前記砥石軸を砥石ホルダ側へほぼ一定圧力で付勢
するための定圧付勢装置が設けられたことを特徴とする
研削アタッチメント。
(2) The whetstone is composed of a plurality of whetstone chips mounted circularly at equal pitches on a base via elastic bodies, and a rotary whetstone holder that holds the whetstone and a rotary whetstone shaft are arranged in the center of the whetstone holder. 1. A grinding attachment characterized in that a constant pressure urging device is provided, which is interlocked and oscillatably connected via a universal joint, and is configured to urge the grindstone shaft toward the grindstone holder with a substantially constant pressure.
JP9515385A 1985-05-02 1985-05-02 Grinding tool and grinding attachment Pending JPS61257751A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9515385A JPS61257751A (en) 1985-05-02 1985-05-02 Grinding tool and grinding attachment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9515385A JPS61257751A (en) 1985-05-02 1985-05-02 Grinding tool and grinding attachment

Publications (1)

Publication Number Publication Date
JPS61257751A true JPS61257751A (en) 1986-11-15

Family

ID=14129844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9515385A Pending JPS61257751A (en) 1985-05-02 1985-05-02 Grinding tool and grinding attachment

Country Status (1)

Country Link
JP (1) JPS61257751A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63127827A (en) * 1986-11-18 1988-05-31 Kobe Steel Ltd Electrolytic buffing compound polishing device
JPH01164552A (en) * 1987-12-22 1989-06-28 Res Dev Corp Of Japan Automatic copy-polishing device for curved surface
JPH01106153U (en) * 1988-01-07 1989-07-17
KR100693703B1 (en) * 2006-07-13 2007-03-12 강승원 Polishing stone fixing article for mold polishing apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553314U (en) * 1978-10-05 1980-04-10

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553314U (en) * 1978-10-05 1980-04-10

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63127827A (en) * 1986-11-18 1988-05-31 Kobe Steel Ltd Electrolytic buffing compound polishing device
JPH0521709B2 (en) * 1986-11-18 1993-03-25 Kobe Steel Ltd
JPH01164552A (en) * 1987-12-22 1989-06-28 Res Dev Corp Of Japan Automatic copy-polishing device for curved surface
JPH01106153U (en) * 1988-01-07 1989-07-17
KR100693703B1 (en) * 2006-07-13 2007-03-12 강승원 Polishing stone fixing article for mold polishing apparatus

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