JPH0611726Y2 - Indexing table - Google Patents
Indexing tableInfo
- Publication number
- JPH0611726Y2 JPH0611726Y2 JP1986168983U JP16898386U JPH0611726Y2 JP H0611726 Y2 JPH0611726 Y2 JP H0611726Y2 JP 1986168983 U JP1986168983 U JP 1986168983U JP 16898386 U JP16898386 U JP 16898386U JP H0611726 Y2 JPH0611726 Y2 JP H0611726Y2
- Authority
- JP
- Japan
- Prior art keywords
- base
- pressing member
- piston
- clamp device
- indexing
- 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
- Machine Tool Positioning Apparatuses (AREA)
- Machine Tool Units (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、加工中における固定力を向上させ加工精度を
高くした割出しテーブルに関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an indexing table having an improved fixing force during processing and improved processing accuracy.
〈従来の技術〉 第２図に従来の割出しテーブルの一例を示す。この割出
しテーブル５０は、基台５２上にテーブル５４を備え、
このテーブル５４の中央に中心軸５６を一体に固着さ
せ、前記基台５２内に上記テーブル５４のクランプ装置
５８を有している。このクランプ装置５８は、基台５２
内に設けたシリンダ６０内に前記中心軸５６に一体に固
定させたピストン６２を設け、このピストン６２で区画
された上記シリンダ６０内の各々のシリンダ室60ａ，60
ｂに切換弁６４を通して配管された油管６５が連通して
いる。そして上部のシリンダ室60ａ内に圧油を導入させ
ピストン６２を押し下げて、中心軸５６を介してテーブ
ル５４を基台５２に押し付けることでテーブル５４のク
ランプを行なわせていた。<Prior Art> FIG. 2 shows an example of a conventional indexing table. The indexing table 50 includes a table 54 on a base 52,
A central shaft 56 is integrally fixed to the center of the table 54, and a clamp device 58 for the table 54 is provided in the base 52. This clamp device 58 has a base 52.
A piston 62 integrally fixed to the central shaft 56 is provided in a cylinder 60 provided therein, and each of the cylinder chambers 60a, 60 in the cylinder 60 defined by the piston 62 is provided.
An oil pipe 65 is connected to b through the switching valve 64. Then, pressure oil is introduced into the upper cylinder chamber 60a, the piston 62 is pushed down, and the table 54 is pressed against the base 52 via the central shaft 56 to clamp the table 54.
〈考案が解決しようとする問題点〉 ところが以上述べた従来の割出しテーブル５０では、テ
ーブル５４の裏面が基台５２に押し付けられることでク
ランプされることから、加工によってはクランプ力が不
足しテーブル５４の浮き上りを招き、加工効率，加工能
力及び加工精度等を低下させることがあった。一方テー
ブル５４の浮き上りを防ぐ目的で押し付け力を増大させ
るとテーブル５４に加えられる力が増加してしまい、そ
れによりテーブル５４自体の変形を生じさせかえって精
度を悪化させるという問題があった。<Problems to be Solved by the Invention> However, in the conventional indexing table 50 described above, the back surface of the table 54 is pressed against the base 52 to be clamped. In some cases, the lifting of 54 causes the deterioration of the processing efficiency, the processing ability, the processing accuracy, and the like. On the other hand, if the pressing force is increased for the purpose of preventing the table 54 from rising, the force applied to the table 54 increases, which causes deformation of the table 54 itself and deteriorates accuracy.
〈問題点を解決するための手段〉 そこで本考案では、流体圧を利用して基台上に押し付け
ることによりテーブルを固定する割出しテーブルにおい
て、前記テーブルの外周に押え部材を延設し、該押え部
材を前記基台に向って押付ける方向に作動し作動端で前
記押え部材との隙間を０としてなる第２クランプ装置を
前記テーブルの更に外周側に設けたことを特徴とする。<Means for Solving the Problems> Therefore, in the present invention, in the indexing table that fixes the table by pressing it on the base using fluid pressure, a pressing member is extended on the outer periphery of the table, It is characterized in that a second clamp device is provided further on the outer peripheral side of the table so as to actuate the pressing member toward the pressing direction toward the base so that the clearance between the pressing member and the pressing member becomes zero at the operating end.
〈作用〉 第２クランプ装置を作動させて押え部材と隙間を０と
し、テーブルの押付力を増すことなくテーブルの浮き上
りを防ぐ。<Operation> The second clamp device is operated to set the gap between the pressing member and the pressing member to 0, and the lifting of the table is prevented without increasing the pressing force of the table.
〈実施例〉 第１図に本考案にかかる割出しテーブルの一実施例を示
す。この割出しテーブル２は、従来例において述べた割
出しテーブル５０と同様、基台４上にテーブル６を載置
させ、このテーブル６に一体に固着させた中心軸８を基
台４に挿通させている。更に基台４の内部にはクランプ
装置１０が設けてあり、前記中心軸８に取り付けられた
ピストン１２がシリンダ１４内に摺動自在に設置され、
このピストン１２で区画形成されたシリンダ室１４ａ及
び１４ｂの各々に切換弁１６からの油管18が連通してお
り、そして更に基台４上には第２クランプ装置２０が設
けられている。また、テーブル６の外周には押え部材２
２が延設され、押え部材２２は第２クランプ装置２０に
よって基台４側に押えられる。<Embodiment> FIG. 1 shows an embodiment of the indexing table according to the present invention. Like the indexing table 50 described in the conventional example, the indexing table 2 has a table 6 placed on a base 4 and a central shaft 8 integrally fixed to the table 6 inserted into the base 4. ing. Further, a clamp device 10 is provided inside the base 4, and a piston 12 attached to the central shaft 8 is slidably installed in a cylinder 14,
An oil pipe 18 from a switching valve 16 communicates with each of the cylinder chambers 14a and 14b defined by the piston 12, and a second clamp device 20 is further provided on the base 4. Further, the pressing member 2 is provided on the outer periphery of the table 6.
2 is extended, and the pressing member 22 is pressed to the base 4 side by the second clamp device 20.
前記第２クランプ装置２０は、テーブル６の外周より更
に外方に設けてあり、テーブル６に延設された押え部材
２２を所定位置に保持するようになっている。具体的に
は、前記基台４上に固定された外枠２４内にピストン２
６を摺動自在に設け、このピストン２６を前記押え部材
２２に係合させ、外枠２４とこのピストン２６とで形成
されるシリンダ室28に前記シリンダ室１４ａからの油管
を連通させてある。そして前記ピストン２６は、上記シ
リンダ室２８からの油圧により下方へ押し下げられその
底部が基台４上に当接するとちょうど、テーブル６が基
台４上に押し当てられた状態で、押え部材２２に隙間０
で係合するようになっている。このピストン２６の底部
側にある３０は、シリンダ室２８内の油圧が低下した際
ピストン２６を上方へ押し上げるためのバネである。The second clamp device 20 is provided further outside the outer circumference of the table 6 and holds the holding member 22 extended on the table 6 at a predetermined position. Specifically, the piston 2 is placed in the outer frame 24 fixed on the base 4.
6 is slidably provided, the piston 26 is engaged with the pressing member 22, and a cylinder chamber 28 formed by the outer frame 24 and the piston 26 communicates with the oil pipe from the cylinder chamber 14a. When the piston 26 is pushed down by the hydraulic pressure from the cylinder chamber 28 and its bottom portion comes into contact with the base 4, just as the table 6 is pressed against the base 4, the piston 26 is pressed against the pressing member 22. Gap 0
It is designed to engage with. Reference numeral 30 on the bottom side of the piston 26 is a spring for pushing the piston 26 upward when the hydraulic pressure in the cylinder chamber 28 decreases.
以上述べた割出し装置２によれば、テーブル６をクラン
プするため切換弁１６を切換え圧油をシリンダ室１４ａ
に送ると、ピストン１２が下降してテーブル６を基台４
に押しつけクランプすると同時にこのシリンダ室14ａか
ら圧油が第２クランプ装置２０のシリンダ室２８に導入
されてピストン２６が下降して押え部材２２を隙間０と
して保持する。このようにテーブル６はピストン１２を
介して基台４に押しつけられるとともに第２クランプ装
置２０により押え部材２２を介して保持されることから
クランプ力が増大して浮き上りを防止することができ
る。しかも第２クランプ装置２０による保持は基台４上
に当接したテーブル６を更に下方に下げるように荷重が
加えられないことから高圧を必要とせず、第２クランプ
装置２０を通してテーブル６が変形されることがない。
そして切換弁１６を切換えテーブル６のクランプを解除
したときには、ピストン２６はバネ３０により上方に押
し上げられ押え部材２２の保持はこれにより解除され
る。また、第２クランプ装置２０のシリンダ室２８に導
入される圧油は、テーブル６の押付用にシリンダ室１４
ａに導入された圧油を流用しているため、油圧配管が複
雑になることがない。According to the indexing device 2 described above, the switching valve 16 is switched to clamp the table 6, and the pressure oil is supplied to the cylinder chamber 14a.
, The piston 12 descends to move the table 6 to the base 4
The pressure oil is introduced from the cylinder chamber 14a into the cylinder chamber 28 of the second clamp device 20 at the same time as the piston 26 is lowered to hold the pressing member 22 as a gap 0. In this way, the table 6 is pressed against the base 4 via the piston 12 and is held by the second clamp device 20 via the pressing member 22, so that the clamping force is increased and floating can be prevented. In addition, the holding by the second clamp device 20 does not require high pressure because the load is not applied so as to further lower the table 6 which is in contact with the base 4, and the table 6 is deformed through the second clamp device 20. Never.
When the switching table 16 is released from the clamping of the switching table 6, the piston 26 is pushed upward by the spring 30 and the holding of the pressing member 22 is released. Further, the pressure oil introduced into the cylinder chamber 28 of the second clamp device 20 is used for pressing the table 6 in the cylinder chamber 14
Since the pressure oil introduced in a is diverted, the hydraulic piping does not become complicated.
〈考案の効果〉 本考案の割出しテーブルは、作動端で押え部材との隙間
を０としてテーブルの外周を基台方向に押圧する第２ク
ランプ装置を設けたので、加工に伴い加えられる荷重を
原因とする割出しテーブルの浮き上りを高圧の油圧を用
いることなく防止できる。この結果、割出しテーブルを
変形させることなく割出しテーブルの浮上りが防止さ
れ、割出しテーブルに取付けられた被加工物を安定した
状態で加工でき、加工精度・加工効率・加工能力を向上
させることができる。<Effect of the Invention> The indexing table of the present invention is provided with the second clamp device for pressing the outer periphery of the table toward the base with the gap between the pressing end and the pressing member set to 0 at the working end. The lifting of the indexing table, which is the cause, can be prevented without using high-pressure hydraulic pressure. As a result, the indexing table is prevented from rising without being deformed, and the workpiece mounted on the indexing table can be machined in a stable state, improving machining accuracy, machining efficiency, and machining capacity. be able to.
第１図は本考案にかかる割出しテーブルの一実施例を示
す断面図、第２図は従来例を示す断面図である。 図面中、 ２，５０は割出しテーブル、 ４，５２は基台、 ６，５４はテーブル、 ８，５６は中心軸、 １０，５８はクランプ装置、 １６，６４は切換弁、 ２０は第２クランプ装置、 ２２は押え部材、 ２６はピストンである。FIG. 1 is a sectional view showing an embodiment of an indexing table according to the present invention, and FIG. 2 is a sectional view showing a conventional example. In the drawing, 2,50 is an indexing table, 4,52 is a base, 6,54 is a table, 8,56 is a central shaft, 10,58 is a clamp device, 16,64 is a switching valve, and 20 is a second clamp. A device, 22 is a holding member, and 26 is a piston.
Claims (1)
によりテーブルを固定する割出しテーブルにおいて、前
記テーブルの外周に押え部材を延設し、該押え部材を前
記基台に向って押付ける方向に作動し作動端で前記押え
部材との隙間を０としてなる第２クランプ装置を前記テ
ーブルの更に外周側に設けたことを特徴とする割出しテ
ーブル。1. In an indexing table for fixing a table by pressing it on a base using fluid pressure, a pressing member is extended on the outer periphery of the table, and the pressing member is pressed toward the base. An indexing table, further comprising a second clamp device which is operated in a mounting direction and has a clearance between the pressing member and the pressing member set to be 0 at an outer end of the table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986168983U JPH0611726Y2 (en) | 1986-11-05 | 1986-11-05 | Indexing table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986168983U JPH0611726Y2 (en) | 1986-11-05 | 1986-11-05 | Indexing table |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6374232U JPS6374232U (en) | 1988-05-18 |
| JPH0611726Y2 true JPH0611726Y2 (en) | 1994-03-30 |
Family
ID=31102371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986168983U Expired - Lifetime JPH0611726Y2 (en) | 1986-11-05 | 1986-11-05 | Indexing table |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0611726Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802032A (en) * | 2014-01-27 | 2015-07-29 | 发那科株式会社 | Rotation table |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS501482A (en) * | 1973-05-10 | 1975-01-09 | ||
| JPS6119470Y2 (en) * | 1979-09-08 | 1986-06-12 |
-
1986
- 1986-11-05 JP JP1986168983U patent/JPH0611726Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802032A (en) * | 2014-01-27 | 2015-07-29 | 发那科株式会社 | Rotation table |
| CN104802032B (en) * | 2014-01-27 | 2019-02-19 | 发那科株式会社 | Rotary table |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6374232U (en) | 1988-05-18 |
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