JP2504874Y2 - Forming tool holder for grindstone forming equipment - Google Patents
Forming tool holder for grindstone forming equipmentInfo
- Publication number
- JP2504874Y2 JP2504874Y2 JP12820390U JP12820390U JP2504874Y2 JP 2504874 Y2 JP2504874 Y2 JP 2504874Y2 JP 12820390 U JP12820390 U JP 12820390U JP 12820390 U JP12820390 U JP 12820390U JP 2504874 Y2 JP2504874 Y2 JP 2504874Y2
- Authority
- JP
- Japan
- Prior art keywords
- forming
- grindstone
- grinding wheel
- forming tool
- tool holder
- 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 - Lifetime
Links
Landscapes
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Description
【考案の詳細な説明】 (産業上の利用分野) 本考案は成形研削盤の砥石成形装置に関し、特に砥石
車が上下方向(Z軸方向)および回転軸線方向(Y軸方
向)に移動可能な各種成形研削盤に取り付けられる成形
工具ホルダに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a grindstone forming device for a forming grinding machine, and in particular, a grindstone wheel is movable in a vertical direction (Z axis direction) and a rotation axis direction (Y axis direction). TECHNICAL FIELD The present invention relates to a forming tool holder attached to various forming grinders.
(従来の技術) 例えば歯車成形研削盤等においては、使用する砥石車
は研削すべき歯車の歯形プロファイルに一致した砥石作
業面形状を有し、前記歯車を歯形ピッチづつ間欠回転さ
せつつ歯溝を順次研削していく。このような砥石車の形
状出しを行う砥石成形装置として、砥石車を研削盤から
取り外すことなく被加工物のみを取り外してその位置に
砥石成形装置を取り付けて前記砥石車の成形および修正
を行うようにしたものが提案されている。第3図および
第4図を参照して説明すれば、この砥石成形装置は、Z
軸およびY軸の2軸制御可能な砥石車1を有する研削盤
の被加工物(ワーク)の支持部に取り付けられる砥石成
形工具ホルダ2と、砥石車1の成形面3に接触するよう
に砥石成形工具ホルダ2に軸支された砥石成形工具(ロ
ータリドレッサ)4とを有する。この成形装置において
は前記ロータリドレッサ4が砥石車1の成形面3に対し
常に該成形面の法線方向から接触するように、砥石車1
のZ,Y2軸方向の移動に対応して砥石成形工具ホルダ2を
ワーク支持部の回転軸つまりA軸のまわりに180°旋回
可能としている。この場合、成形工具ホルダ2はその長
手方向中央の上部分が研削盤に装着されている砥石車1
に干渉しないように凹状に窪んでおり、ロータリドレッ
サ4はこの窪み部の位置で砥石車1に接触するように軸
支され、ホルダ2に設けたモータ8によりプーリ,ベル
トを介して回転される。したがってロータリドレッサ4
の回転中心は前記A軸の軸線に対して該ドレッサの半径
rだけオフセットされている。(Prior Art) For example, in a gear forming grinder, a grinding wheel to be used has a grindstone working surface shape that matches a tooth profile of a gear to be ground, and a tooth groove is formed while intermittently rotating the gear by a tooth pitch. Grind sequentially. As a grindstone forming device for shaping the shape of such a grinding wheel, without removing the grinding wheel from the grinder, only the workpiece is removed, and the grinding wheel forming device is attached at that position to form and correct the grinding wheel. What has been proposed is proposed. Explaining with reference to FIG. 3 and FIG.
Grinding wheel forming tool holder 2 attached to a supporting portion of a work (work) of a grinding machine having a grinding wheel 1 capable of biaxial control of an A-axis and a Y-axis, and a grinding wheel so as to come into contact with a molding surface 3 of the grinding wheel 1. A grinding stone forming tool (rotary dresser) 4 axially supported by the forming tool holder 2. In this molding apparatus, the rotary dresser 4 is so arranged that the rotary dresser 4 is always in contact with the molding surface 3 of the grinding wheel 1 in the direction normal to the molding surface.
The grindstone forming tool holder 2 can be turned by 180 ° around the rotation axis of the work supporting portion, that is, the A axis, in response to the movement in the Z and Y axis directions. In this case, the grinding tool holder 2 has a grinding wheel 1 whose upper part in the longitudinal center is mounted on the grinder.
The rotary dresser 4 is rotatably supported so as to come into contact with the grinding wheel 1 at the position of the recess and is rotated by a motor 8 provided in the holder 2 via a pulley and a belt. . Therefore, the rotary dresser 4
The rotation center of is offset from the axis of the A-axis by the radius r of the dresser.
(考案が解決しようとする課題) 上述したタイプの砥石成形装置においては、ドレッサ
4の軸芯まわりの回転中心が該ドレッサの揺動回転中心
(A軸)から少なくともドレッサ半径分ずれて保持され
ているので、前記A軸を中心としてドレッサ4が180°
の範囲で旋回すると、ホルダ2の振れまわり半径が大き
くなる。このため慣性力が大きく、ホルダ2自体の剛性
不足やホルダ支持部に過大な力がかかり、その結果成形
誤差が生じ、砥石車に対して正確かつ精度のよいプロフ
ァイルが形成できなくなるおそれがある。(Problems to be Solved by the Invention) In the grindstone forming apparatus of the type described above, the center of rotation of the dresser 4 around the shaft center is held at least offset by the dresser radius from the swing center (A axis) of the dresser. Therefore, the dresser 4 is 180 ° around the A axis.
If the holder 2 is swung within the range, the whirling radius of the holder 2 increases. For this reason, the inertial force is large, the rigidity of the holder 2 itself is insufficient, and the holder supporting portion is applied with an excessive force. As a result, a molding error may occur, and an accurate and accurate profile may not be formed on the grinding wheel.
本考案は、振れまわり半径が小さく、ホルダ支持部に
無理な力をかけずに迅速な旋回動作を行わせ得、砥石車
の成形面精度を向上させ得る砥石成形装置の成形工具ホ
ルダを提供することにある。The present invention provides a forming tool holder for a grindstone forming device that has a small whirling radius, can perform a swivel motion without applying an excessive force to the holder supporting portion, and can improve the forming surface accuracy of the grinding wheel. Especially.
(課題を解決するための手段) 本考案によれば、2軸制御可能な砥石車を有する研削
盤の被加工物支持部に取り付けられ、かつ砥石成形工具
が前記砥石車の成形面に対し常に法線方向から接触する
ように制御される砥石成形装置の成形工具ホルダにおい
て、前記被加工物支持部に旋回可能に取り付けられ、か
つ前記砥石成形工具をその回転中心が前記被加工物支持
部の回転軸線上に位置するように保持するように構成さ
れた成形工具ホルダが提供される。(Means for Solving the Problems) According to the present invention, the grindstone forming tool is attached to the workpiece support part of the grinder having a grindstone capable of biaxial control, and the grindstone forming tool is always attached to the forming surface of the grindstone. In a forming tool holder of a grindstone forming apparatus that is controlled so as to contact from a normal direction, the grindstone forming tool is pivotally attached to the workpiece support, and the center of rotation of the grindstone forming tool is the workpiece support. A forming tool holder is provided that is configured to hold in position on an axis of rotation.
(実施例) 次に、本考案を、第1図および第2図を参照して実施
例につき説明する。(Example) Next, this invention is demonstrated about an Example with reference to FIG. 1 and FIG.
成形研削盤のワーク軸線方向に往復動するテーブル上
にワークを支持する主軸台5および心押台7が所定のセ
ンタ間隔をもって載置され、これらのセンタ間に後述す
る成形工具ホルダ2が軸支される。成形工具ホルダ2の
長手方向中央位置に対応して、該ホルダの近傍に、主軸
台5のセンタ軸つまりA軸に対し直角かつ水平な回転軸
線(Y軸)をもつ砥石車1が軸支されている。A headstock 5 and a tailstock 7 for supporting a work are placed with a predetermined center interval on a table that reciprocates in the work axis direction of the forming and grinding machine, and a forming tool holder 2 described later is pivotally supported between these centers. To be done. A grinding wheel 1 having a rotation axis (Y axis) that is perpendicular to the center axis of the headstock 5, that is, the A axis, is axially supported near the center of the molding tool holder 2 in the longitudinal direction. ing.
砥石車1は前記Y軸方向に出入移動可能であるととも
に該Y軸に垂直なZ方向にも上下動可能となっている。
なお実際にワークを研削する際には、前記成形工具ホル
ダ2は取り外され、この位置にワークが取り付けられ
る。The grinding wheel 1 can move in and out in the Y-axis direction, and can also move up and down in the Z-direction perpendicular to the Y-axis.
When actually grinding the work, the forming tool holder 2 is removed and the work is attached at this position.
この実施例では成形工具ホルダ2は全体として真直な
部材で構成されており、その端部で主軸台5に設けたけ
り回し6と係合して該主軸台5の回転駆動によりA軸ま
わりに180°の範囲で旋回するようになっている。In this embodiment, the forming tool holder 2 is composed of a straight member as a whole, and its end portion is engaged with a guide 6 provided on the headstock 5 to rotate the headstock 5 to rotate around the A axis. It is designed to turn within a range of 180 °.
成形工具は、この実施例ではダイヤモンドホイールで
構成されるロータリドレッサ4は成形工具ホルダ2の略
中央位置でかつその回転中心軸芯がA軸上に存するよう
に該ホルダに軸支されている。なおロータリドレッサ4
の中心軸は前記Y軸と平行である。ロータリドレッサ4
はホルダ2に設けられた駆動装置9によりプーリおよび
ベルトを介して回転される。In the forming tool, the rotary dresser 4 constituted by a diamond wheel in this embodiment is pivotally supported on the forming tool holder 2 so that the rotary dresser 4 is located at a substantially central position and the rotation center axis is on the A axis. The rotary dresser 4
The central axis of is parallel to the Y-axis. Rotary dresser 4
Is rotated by a driving device 9 provided in the holder 2 via a pulley and a belt.
砥石車1の成形動作においては、ロータリドレッサ4
はその外周縁が常に砥石車1の成形面3に対し法線方向
から接触しつつA軸まわりに旋回するように制御され、
かつ砥石車1は前記Y軸およびZ軸方向に移動制御され
る。第2図はロータリドレッサ4と砥石車1との砥石成
形作業中の4段階における位置関係を示した図である。
砥石車1およびロータリドレッサ4はそれぞれの回転軸
芯のまわり回転しつつ上述した砥石車1のY,Z2軸制御お
よびホルダ2のA軸まわりの旋回により所望の砥石成形
がなされる。第2図からも明らかなようにロータリドレ
ッサ4の回転軸芯はA軸と交差しており、A軸まわりの
揺動の際の成形工具ホルダ2によるロータリドレッサ4
の振れまわりはきわめて小となり、高速動作させても大
きな慣性力は生じないため、正確な砥石成形ができる。
成形工具ホルダ2も単純な形状となるので製作も容易で
あり、ドレッサ軸支部の周囲も大きなスペースを占め
ず、簡潔な構成となる。In the forming operation of the grinding wheel 1, the rotary dresser 4
Is controlled so that its outer peripheral edge is always in contact with the forming surface 3 of the grinding wheel 1 from the normal direction and turns around the A axis.
Moreover, the grinding wheel 1 is controlled to move in the Y-axis and Z-axis directions. FIG. 2 is a diagram showing the positional relationship between the rotary dresser 4 and the grinding wheel 1 at four stages during the grindstone forming operation.
While the grinding wheel 1 and the rotary dresser 4 rotate about their respective rotary shaft cores, desired grinding stones are formed by controlling the Y and Z axes of the grinding wheel 1 and turning the holder 2 around the A axis. As is clear from FIG. 2, the rotary shaft center of the rotary dresser 4 intersects the A axis, and the rotary dresser 4 by the forming tool holder 2 during swinging around the A axis.
The whirling around is extremely small, and a large inertial force does not occur even when operating at high speed, so that accurate grinding stone molding can be performed.
Since the forming tool holder 2 also has a simple shape, it is easy to manufacture, and the circumference of the dresser shaft support portion does not occupy a large space, and the structure is simple.
なお上記実施例では成形工具ホルダを両端支持構造と
したが、主軸台側のみに装着した片持支持としてもよい
ことは勿論である。In the above embodiment, the forming tool holder has a structure of supporting both ends, but it is needless to say that it may be a cantilever support mounted only on the headstock side.
(考案の効果) 以上説明したように本考案によれば、砥石成形工具を
保持するホルダが振れまわりのない平衡状態で研削盤に
取り付けられるので、ホルダ自体の剛性が増し、揺動の
際のぶれは減少する。ホルダ支持部にも無理な力がかか
らず、砥石の成形面精度が向上する。ホルダの形状が簡
単化されるので安価に製作できる等の効果がもたらされ
る。(Effect of the Invention) As described above, according to the present invention, the holder for holding the grindstone forming tool is attached to the grinding machine in a balanced state without whirling, so that the rigidity of the holder itself increases and the holder is prevented from swinging. Shake is reduced. Unnecessary force is also applied to the holder support, and the precision of the grinding stone surface is improved. Since the shape of the holder is simplified, it can be manufactured at low cost.
第1図は本考案の実施例による砥石成形装置の正面図、
第2図は本考案の実施例における砥石成形動作中の砥石
車とドレッサとの位置関係を示した図、第3図は従来の
砥石成形装置の正面図、第4図は第3図に示す従来例に
おける成形動作を示した図である。 1……砥石車、2……成形工具ホルダ、3……成形面、
4……ロータリドレッサ、(成形工具)、5……主軸
台、6……けり回し。FIG. 1 is a front view of a grindstone forming apparatus according to an embodiment of the present invention,
FIG. 2 is a diagram showing a positional relationship between a grinding wheel and a dresser during a grindstone forming operation in an embodiment of the present invention, FIG. 3 is a front view of a conventional grindstone forming apparatus, and FIG. 4 is shown in FIG. It is a figure showing the forming operation in the conventional example. 1 ... Grinding wheel, 2 ... Molding tool holder, 3 ... Molding surface,
4 ... Rotary dresser, (molding tool), 5 ... headstock, 6 ... turning.
Claims (1)
加工物支持部に取り付けられ、かつ砥石成形工具が前記
砥石車の成形面に対し常に法線方向から接触するように
制御される砥石成形装置の成形工具ホルダにおいて、前
記被加工物支持部に旋回可能に取り付けられ、かつ前記
砥石成形工具をその回転中心が前記被加工物支持部の回
転軸線上に位置するように保持することを特徴とする成
形工具ホルダ。1. A grinder having a biaxially controllable grinding wheel, which is attached to a workpiece support portion of a grinding machine, and is controlled so that a grinding wheel forming tool always contacts a forming surface of the grinding wheel in a normal direction. In a forming tool holder of a grindstone forming apparatus, the grindstone forming tool is rotatably attached to the work piece supporting portion, and holds the grindstone forming tool so that its rotation center is located on the rotation axis of the work piece supporting portion. Molding tool holder characterized in that.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12820390U JP2504874Y2 (en) | 1990-11-30 | 1990-11-30 | Forming tool holder for grindstone forming equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12820390U JP2504874Y2 (en) | 1990-11-30 | 1990-11-30 | Forming tool holder for grindstone forming equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0486160U JPH0486160U (en) | 1992-07-27 |
JP2504874Y2 true JP2504874Y2 (en) | 1996-07-24 |
Family
ID=31875673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12820390U Expired - Lifetime JP2504874Y2 (en) | 1990-11-30 | 1990-11-30 | Forming tool holder for grindstone forming equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2504874Y2 (en) |
-
1990
- 1990-11-30 JP JP12820390U patent/JP2504874Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0486160U (en) | 1992-07-27 |
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