JPS63127843A - Clamping device for dividing table - Google Patents
Clamping device for dividing tableInfo
- Publication number
- JPS63127843A JPS63127843A JP27287086A JP27287086A JPS63127843A JP S63127843 A JPS63127843 A JP S63127843A JP 27287086 A JP27287086 A JP 27287086A JP 27287086 A JP27287086 A JP 27287086A JP S63127843 A JPS63127843 A JP S63127843A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- indexing table
- recessed groove
- ring
- dividing table
- 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.)
- Granted
Links
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/28—Means for securing sliding members in any desired position
- B23Q1/287—Means for securing sliding members in any desired position using a hydraulically controlled membrane acting directly upon a sliding member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は工作機械等に使用される割出しテーブルのクラ
ンプ装置に係り、特に割出しテーブル表面に問題となる
歪みを生じさせず１強固のクランプ力が得られる割出し
テーブルのクランプ装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a clamping device for an indexing table used in a machine tool, etc., and in particular to a clamping device that provides a strong clamping force without causing any problematic distortion on the surface of the indexing table. This invention relates to a clamping device for an indexing table that provides the following.
従来の技術
第４図に示す如く、割出しテーブル１０は不動側である
機械本体１１に軸受１２等により枢支され１例えば、そ
の外周に形成されるウームホイールにウオームギヤ１４
（２点鎖線で示す）を噛合させ、ウオームギヤ１４をサ
ーボモータ（図示せず）により割出し回転するように構
成される０割出しテーブル１０の表面はワーク（図示せ
ず）、治具等が搭載されるため、高精度に形成される。BACKGROUND ART As shown in FIG. 4, an indexing table 10 is pivotally supported on a machine body 11, which is an immovable side, by bearings 12, etc.;
The surface of the indexing table 10, which is constructed so that the worm gear 14 is indexed and rotated by a servo motor (not shown), has a workpiece (not shown), a jig, etc. Because it is mounted, it is formed with high precision.
なお図示の如く割出しテーブル１０はその摺動面１０ａ
を機械本体１１の支持面１１ａに接触させた状態で回転
する１割出し終了時における割出しテーブル１０のクラ
ンプ手段としては、図に明示していないが１割出しテー
ブル１０を矢視Ａ方向に押圧し１機械本体１１側に固定
するものが一般に採用されている。As shown in the figure, the indexing table 10 has a sliding surface 10a.
Although not clearly shown in the figure, as a means for clamping the indexing table 10 at the end of one indexing, which rotates while in contact with the support surface 11a of the machine body 11, the one indexing table 10 is moved in the direction of arrow A. A device that is pressed and fixed to the machine body 11 side is generally used.
発明が解決しようとする問題点
前記の如く、割出しテーブル１０を機械本体ｌｌ偏にク
ランプすると、従来技術のものではクランプ力により割
出しテーブル１０の表面に歪が生ずる不具合があった。Problems to be Solved by the Invention As described above, when the indexing table 10 is clamped unevenly to the machine body, the prior art has a problem in that the surface of the indexing table 10 is distorted by the clamping force.
このため強固なりランプ力を与えることができないため
、切削剛性が不足する欠点が有った。For this reason, it is not strong enough to apply a ramp force, so it has the disadvantage of insufficient cutting rigidity.
本発明は以上の不具合、欠点を解決するもので、割出し
テーブル表面に問題となる歪を生じさせることなく大き
なりランプ力が得られ、切削剛性を向上し得る割出しテ
ーブルのクランプ装置を提供することにある。The present invention solves the above problems and disadvantages, and provides an indexing table clamping device that can obtain a large ramp force without causing problematic distortion on the indexing table surface and improve cutting rigidity. It's about doing.
問題点を解決するための手段
本発明はこのために、不動側に枢支される割出しテーブ
ルに同心状にクランプ用リングを固定し、該クランプ用
リングを、内面に張り出すフランジ面と軸線方向に沿っ
て部分的に薄肉部とを有するものから形成せしめ、前記
不動側に前記割出しテーブルの回転軸線方向に沿って摺
動回部に支持されるピストンを前記フランジ部に着離可
能に当接係合せしめてなる割出しテーブルのクランプ装
置を構成するものである。Means for Solving the Problems For this purpose, the present invention fixes a clamping ring concentrically to an indexing table that is pivotally supported on the immovable side, and connects the clamping ring to the flange surface projecting to the inner surface and the axis line. A piston is formed from a material having a thin wall portion partially along the direction, and a piston supported by a sliding portion on the immovable side along the rotation axis direction of the indexing table can be attached to and detached from the flange portion. This constitutes a clamping device for an indexing table which is brought into contact and engaged with each other.
作用
前記ピストンによりクランプ用リングのフランジ面を押
圧し、強固のクランプ力を得ると共に軸線方向に沿って
形成された前記薄肉部によって、クランプ時に生ずる歪
を吸収し１割出しテーブル表面の歪の発生を防■卜する
ようにするものである実施例
以下１本発明の実施例を図面に基づき説明する第２図お
よび第３図に実施例に用いられるクランプ用リングｌを
示す、クランプ用リング１はリング状部材から形成され
、その一端面には中心に向って張り出すフランジ面２が
形成される。また肉厚部には軸線方向に沿って部分的に
薄肉部３が形成される。薄肉部３はフランジ用リングｌ
の軸線方向の剛性を部分的に弱くすべく形成されるもの
で、形状は特に限定するものでないが、本実施例では鋸
歯形状のものから形成される。なお薄肉部３が形成され
てもクランプ用リングｌは前記の如く、リング状部材か
ら形成されるため円周方向の剛性（割出しテーブル１０
の回転方向の剛性）は十分に確保される。Function: The piston presses the flange surface of the clamping ring to obtain a strong clamping force, and the thin wall portion formed along the axial direction absorbs the strain that occurs during clamping, causing distortion on the index table surface. Embodiment 1 An embodiment of the present invention will be explained based on the drawings. Figures 2 and 3 show a clamp ring 1 used in the embodiment. is formed from a ring-shaped member, and a flange surface 2 extending toward the center is formed on one end surface thereof. Further, a thin portion 3 is partially formed in the thick portion along the axial direction. Thin wall part 3 is flange ring l
Although the shape is not particularly limited, in this embodiment, it is formed to have a sawtooth shape. Note that even if the thin part 3 is formed, the clamping ring l is formed from a ring-shaped member as described above, so the rigidity in the circumferential direction (the indexing table 10
(rotational rigidity) is ensured sufficiently.
クランプ用リングｌの内径４は後に説明するピストン外
径と微少間隙を有する寸法に形成される。またねじ孔５
はクランプ用リング１を割出しテーブル１０に固定する
もので複数側形成される。The inner diameter 4 of the clamping ring 1 is dimensioned to have a minute gap with the outer diameter of the piston, which will be explained later. Also screw hole 5
The clamp ring 1 is fixed to the index table 10 and is formed on multiple sides.
第１図は本実施例の全体構造を示すものであるクランプ
用リング１は割出しテーブル１０の下面にその回転軸と
同心状に取付けられ、ねじ孔５に螺合するポルト６によ
り固定される０機械本体１１の中心側の肉厚部外間に凹
溝７が形成される、ピストン８はリング状部材から形成
され、凹溝７に、これを囲繞するが如く係合し、シリン
ダ室９を形成する。すなわちピストン８は凹溝７に嵌り
込むと共に、割出しテーブルｌＯの回転軸線方向に沿っ
て凹溝７内に摺動回部に支持される。なおシリンダ室９
内の圧力媒体の洩れ防１トのため、凹溝７とピストン８
間にはシール部材１５．１６．１７が挿着される０機械
本体１１の前記肉厚部にはシリンダ室９に圧力媒体を出
入させるための通路１８．１９がそれぞれ穿設され、そ
れぞれ図示しない圧力源および切換機械に連通ずる。FIG. 1 shows the overall structure of this embodiment. A clamping ring 1 is attached to the lower surface of an indexing table 10 concentrically with its rotation axis, and is fixed by a port 6 screwed into a screw hole 5. A concave groove 7 is formed between the outside of the thick wall on the center side of the machine body 11. The piston 8 is formed from a ring-shaped member, engages with the concave groove 7 so as to surround it, and opens the cylinder chamber 9. Form. That is, the piston 8 fits into the groove 7 and is supported by a sliding portion within the groove 7 along the rotational axis direction of the indexing table IO. Furthermore, cylinder chamber 9
To prevent leakage of the pressure medium inside the groove 7 and the piston 8.
Passages 18 and 19 for allowing pressure medium to enter and exit the cylinder chamber 9 are bored in the thick walled portion of the machine body 11, and seal members 15, 16, and 17 are inserted between them, and these passages are not shown in the drawings. Communicates with pressure source and switching machine.
ピストン８の外側にはこれを囲繞するが如く、クランプ
用リングｌが装着される。ピストン８の外周とクランプ
用リングｌの内径４間には、前記の如く微少間隙が設け
られる。またクランプ用リング１のフランジ面２はピス
トン８の当接面８ａと機械本体１１の支持面１１ｂ間に
介入するが如く配置される。従ってピストン８が前記回
転軸線方向に移動し、当接面８ａがフランジ面２に接触
することにより、フランジ面２は支持面１１ｂ側に押圧
されることになる。なお第１図ではピストン８およびク
ランプ用リングｌが機械本体１１に組付は難い構造とな
っているが、実際上は機械本体１１が複数個の部材を嵌
合組合せたものから形成され、これ等を組付は可能に形
成されている。A clamping ring l is attached to the outside of the piston 8 so as to surround it. As described above, a small gap is provided between the outer periphery of the piston 8 and the inner diameter 4 of the clamp ring 1. Further, the flange surface 2 of the clamp ring 1 is arranged so as to intervene between the contact surface 8a of the piston 8 and the support surface 11b of the machine body 11. Therefore, when the piston 8 moves in the direction of the rotation axis and the contact surface 8a comes into contact with the flange surface 2, the flange surface 2 is pressed toward the support surface 11b. In Fig. 1, the piston 8 and the clamping ring l have a structure that is difficult to assemble to the machine body 11, but in reality, the machine body 11 is formed from a plurality of members that are fitted together. etc., can be assembled.
次に、本実施例の作用を更に詳しく説明する。Next, the operation of this embodiment will be explained in more detail.
第１図において１割出しテーブル１０が割出し回転する
場合には通路１９からシリンダ室９内に圧力媒体が導入
され、通路１８から圧力媒体が流出する。これによりピ
ストン８は図の上方に移動し、ピストン８の当接面８ａ
はクランプ用リング１のフランジ面２から離れ、クラン
プ用リング１および割出しテーブル１０は自由状態、す
なわちアングランプの状態となる。従って、前記した如
く、ウオームギヤ１４を回転することにより割出しテー
ブル１０は所定量だけ容易に割出し回転せしめることが
できる。In FIG. 1, when the indexing table 10 indexes and rotates, pressure medium is introduced into the cylinder chamber 9 through the passage 19, and pressure medium flows out from the passage 18. As a result, the piston 8 moves upward in the figure, and the contact surface 8a of the piston 8
is separated from the flange surface 2 of the clamping ring 1, and the clamping ring 1 and the indexing table 10 are in a free state, that is, an unclamped state. Therefore, as described above, by rotating the worm gear 14, the indexing table 10 can be easily indexed and rotated by a predetermined amount.
割出しテーブル１０のクランプ時には、前記と逆に通路
１８から圧力媒体がシリンダ室９内に導入され１通路１
９から流出する。これによりピストン８の当接面８ａは
クランプ用リング１のフランジ面２に当り、これを機械
本体１１の支持面ｌｌｂ側に押圧する。この押圧力によ
りクランプ用リングｌは強力にクランプされる。前記し
た如く、クランプ用すングエの回転方向の剛性は高いた
め、フランジ面２がクランプされれば割出しテーブル１
０はその位置で強固にクランプされる。一方、クランプ
用リングｌのフランジ面２が押圧されると、クランプ用
リング１の軸線方向には引張力が作用する。クランプ用
リング１の軸線方向の剛性が高い場合には前記引張力は
ポルト６を介し直接割出しテーブルに作用し、割出しテ
ーブルの表面に歪を生じさせる。しかしながら前記の如
く、クランプ用リング用ｌは薄肉部３を中間部に形成し
、軸線方向の剛性がこの部分で弱くなるため、前記引張
力が作用しても薄肉部３が変形し、割出しテーブル１０
にほとんど影響を与えない、従って割出しテーブル１０
の表面には問題となる歪が発生しないことになる。When the indexing table 10 is clamped, the pressure medium is introduced into the cylinder chamber 9 from the passage 18 in the opposite manner to that described above.
It flows out from 9. As a result, the contact surface 8a of the piston 8 comes into contact with the flange surface 2 of the clamp ring 1, and presses it against the support surface llb of the machine body 11. The clamping ring 1 is strongly clamped by this pressing force. As mentioned above, the rigidity of the clamping ring in the rotational direction is high, so if the flange surface 2 is clamped, the indexing table 1
0 is firmly clamped in that position. On the other hand, when the flange surface 2 of the clamp ring 1 is pressed, a tensile force acts on the clamp ring 1 in the axial direction. When the clamping ring 1 has high rigidity in the axial direction, the tensile force acts directly on the indexing table through the port 6, causing distortion on the surface of the indexing table. However, as mentioned above, the thin wall part 3 is formed in the middle part of the clamp ring l, and the rigidity in the axial direction is weakened in this part. table 10
Therefore, the index table 10
This means that no problematic distortion will occur on the surface.
未実施例では前記した如く、クランプ用リング１の薄肉
部３を鋸歯形状のものとしたが、これに限定するもので
ない。In the non-example, as described above, the thin wall portion 3 of the clamping ring 1 has a sawtooth shape, but the present invention is not limited to this.
発明の効果
以上の説明により明らかな如く、本発明によれば割出し
テーブルの表面に問題となる歪を発生させることなく、
これを強力にクランプでき、切削剛性を向上し得る効果
が上げられる。Effects of the Invention As is clear from the above explanation, according to the present invention, there is no problem of distortion on the surface of the indexing table.
This can be strongly clamped and the cutting rigidity can be improved.
第１図は本発明一実施例の全体構造を示す軸断面図、第
２図は実施例に使用されるクランプ用リングの平面図、
第３図は第２図の■−■線断面図、第４図は従来の割出
しテーブルのクランプ手段を説明するための軸断面図で
ある。
１−・・クランプ用リング、２・・・フランジ面、３争
・・薄肉部、４・・拳内径、５・・・ねシ孔、５−−−
ポルト、７拳・・凹％＊、８・拳・ピストン、８ａ・・
・当接面、９・・・シリンダ室、１０・・・割出しテー
ブル、１０ａ・・争摺動面、１１−−−機械本体、ｌｌ
ａ、１１ｂｓｓ働支持面、１２・・・軸受、１３−・・
ウオームホイール、１４・・・ウオームギヤ、１５．１
Ｂ、１７・・φシール部材、１８，１９・・・通路図面
一’ｉ’ ２図
Ａ’ ３図FIG. 1 is an axial sectional view showing the overall structure of an embodiment of the present invention, FIG. 2 is a plan view of a clamp ring used in the embodiment,
3 is a cross-sectional view taken along the line ■--■ in FIG. 2, and FIG. 4 is an axial cross-sectional view for explaining the clamping means of the conventional indexing table. 1-... Clamp ring, 2... Flange surface, 3... Thin wall part, 4... Inner diameter of fist, 5... Threaded hole, 5---
Porto, 7 fist...concave%*, 8 fist piston, 8a...
- Contact surface, 9... Cylinder chamber, 10... Index table, 10a... Sliding surface, 11 --- Machine body, ll
a, 11bss working support surface, 12...bearing, 13-...
Worm wheel, 14... Worm gear, 15.1
B, 17... φ seal member, 18, 19... Passage drawing 1'i' 2 figure A' 3 figure
Claims (1)
るリング状部材であって、その一端部に中心に向って張
り出すフランジ面を形成すると共に、その肉厚部に軸線
方向に沿って部分的な薄肉部を形成するクランプ用リン
グと、該クランプ用リングの前記フランジ面を押圧すべ
く、これに着離可能に係合し、前記不動側のシリンダ内
に前記割出しテーブルの回転軸線方向に沿って摺動可能
に支持されるピストンとを設けることを特徴とする割出
しテーブルのクランプ装置。It is a ring-shaped member that is fixed concentrically to the indexing table that is pivotally supported on the immovable side, and has a flange surface that extends toward the center at one end, and a flange surface that extends in the axial direction on its thick part. a clamping ring that forms a partial thin walled portion; and a clamping ring that is removably engaged with the flange surface of the clamping ring in order to press the flange surface of the clamping ring; 1. A clamping device for an indexing table, comprising: a piston slidably supported along an axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61272870A JP2553848B2 (en) | 1986-11-18 | 1986-11-18 | Clamping device for indexing table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61272870A JP2553848B2 (en) | 1986-11-18 | 1986-11-18 | Clamping device for indexing table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63127843A true JPS63127843A (en) | 1988-05-31 |
| JP2553848B2 JP2553848B2 (en) | 1996-11-13 |
Family
ID=17519910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61272870A Expired - Fee Related JP2553848B2 (en) | 1986-11-18 | 1986-11-18 | Clamping device for indexing table |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2553848B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1088616A2 (en) * | 1999-09-28 | 2001-04-04 | DECKEL MAHO GmbH | Rotating or pivoting device in a machine tool |
| JP2010264516A (en) * | 2009-05-12 | 2010-11-25 | Jtekt Corp | Clamp device of rotor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62168227U (en) * | 1986-04-17 | 1987-10-26 |
-
1986
- 1986-11-18 JP JP61272870A patent/JP2553848B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62168227U (en) * | 1986-04-17 | 1987-10-26 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1088616A2 (en) * | 1999-09-28 | 2001-04-04 | DECKEL MAHO GmbH | Rotating or pivoting device in a machine tool |
| JP2001113425A (en) * | 1999-09-28 | 2001-04-24 | Deckel Maho Pfronten Gmbh | Rotating or revolving device of machine tool |
| EP1088616A3 (en) * | 1999-09-28 | 2002-05-22 | DECKEL MAHO Pfronten GmbH | Rotating or pivoting device in a machine tool |
| JP2010264516A (en) * | 2009-05-12 | 2010-11-25 | Jtekt Corp | Clamp device of rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2553848B2 (en) | 1996-11-13 |
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