JPS6090646A - Pallet clamping apparatus for machine tool - Google Patents

Pallet clamping apparatus for machine tool

Info

Publication number
JPS6090646A
JPS6090646A JP19694783A JP19694783A JPS6090646A JP S6090646 A JPS6090646 A JP S6090646A JP 19694783 A JP19694783 A JP 19694783A JP 19694783 A JP19694783 A JP 19694783A JP S6090646 A JPS6090646 A JP S6090646A
Authority
JP
Japan
Prior art keywords
pallet
machine tool
air
clamping
clamping apparatus
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
JP19694783A
Other languages
Japanese (ja)
Inventor
Hiroshi Araki
洋 荒木
Hisao Ishii
久夫 石井
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
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 Fanuc Corp filed Critical Fanuc Corp
Priority to JP19694783A priority Critical patent/JPS6090646A/en
Publication of JPS6090646A publication Critical patent/JPS6090646A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25Movable or adjustable work or tool supports
    • B23Q1/26Movable 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
    • B23Q1/28Means for securing sliding members in any desired position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005Vacuum work holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

PURPOSE:To simplify the structure of a clamping apparatus by clamping a pallet onto a table by utilizing the vacuum formed by the contraction of the air in a concaved part formed on the surface of the table, in a pallet clamping apparatus for a machine tool. CONSTITUTION:When a pallet 21 is clamped onto a table 11, a heating body 11 is heated to heat the air in a concaved part 31 and expand the air. Then, the pallet 21 is loaded onto a prescribed position, and when heating by the heating body 41 is suspended, the temperature of the air in the concaved part 31 lowers, and the air is contracted, and vacuum state is formed, and the pallet 21 can be clamped onto the table 11. Since, at this time, the contact surface between the pallet 21 and the table 11 is sealed by the airtight elastic member 51 such as O-ring, etc., the inside of the concaved part 31 is maintained in vacuum state for a long time, and the clamped state is maintained. When a vacant space 61 is formed in the table, and the air in the vacant space can be cooled, the time up to the generation of a clamping force can be shortened by cooling the vacant space 61 after loading the pallet 21.

Description

【発明の詳細な説明】 (1)発明の技術分野 本発明は工作機械におけるパレットクランプ装置の改良
に関する。特に、パレッ)・底部に拘止部材等を設ける
必要がなく、パレットの構造が簡略であり、パレットを
クランプする場合、パレットをいづれの方向から搬送し
てもよく、油圧源・空気源等のクランプ用エネルギー源
の必要がなく、しかも、クランプ装置が停止してもクラ
ンプ状態が保持されるようになす、工作機械におけるパ
レットクランプ装置の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to an improvement in a pallet clamping device for a machine tool. In particular, there is no need to provide a restraining member on the bottom of the pallet, the structure of the pallet is simple, and when clamping the pallet, the pallet can be conveyed from either direction, and there is no need to install a restraining member on the bottom of the pallet. The present invention relates to an improvement in a pallet clamping device for a machine tool, which eliminates the need for a clamping energy source and maintains the clamped state even when the clamping device is stopped.

(2)技術の背景 工作機械におけるパレットクランプ装置とは、工作機械
を使用して機械加工をなすにあたり被加工体がその上に
固着されるパレットをテーブルにクランプする装置をい
う。そして、パレットを介して被加工体をテーブルにク
ランプする理由は下記のとおりである。すなわち、工作
機械を使用して被加工体に機械加工を施すにあたっては
、被加工体を直接テーブルにクランプしてもさしつかえ
ないが、工作機械上以外の場所において、被加工体a、
標’ie化された形状を有するバレントに固着し、この
パレットをテーブルに取り付けることにすれば、(イ)
一般に単純な形状ではない被加工体を任意の場所で治具
等も使用して極めて容易に取り付けうるという利益、(
ロ)標準化された形状のパレットを極めて容易に工作機
械に取り付はうるという利益、(ハ)これらの利益の相
乗効果として、被加工体を工作機械に取り付ける時間が
短縮されて工作機械の利用率を向上しうるという利益等
があるからである。
(2) Background of the Technology A pallet clamping device for a machine tool is a device that clamps a pallet on which a workpiece is fixed to a table when performing machining using a machine tool. The reason why the workpiece is clamped to the table via the pallet is as follows. In other words, when performing machining on a workpiece using a machine tool, it is possible to clamp the workpiece directly to the table, but in a place other than on the machine tool, the workpiece a,
If you decide to attach it to a balent with a marked shape and attach this pallet to a table, (a)
The advantage is that workpieces that are generally not of simple shape can be attached extremely easily at any location using jigs, etc.
(b) The benefit of being able to attach a pallet with a standardized shape to a machine tool extremely easily; (c) The synergistic effect of these benefits is that the time required to attach a workpiece to a machine tool is shortened, making it easier to use the machine tool. This is because there are benefits such as being able to improve the ratio.

(3)従来技術と問題点 従来技術における工作機械におけるパレットクランプ装
置は、第1図に概略機構を示す如き物が一般であった。
(3) Prior art and problems Pallet clamping devices for machine tools in the prior art generally have a mechanism as shown in FIG. 1.

図において、1はテーブルであり、2はバレントである
が、パレット2にはその底面近傍にテーブルlの表面に
平行する四部3が形成されており、この凹部3に嵌合す
るプランジャー型固着具4が油圧または空気圧式シリン
ダ機構5のピストン6によって駆動される。そして、パ
レット2をテーブル1にクランプするにあたっでは、プ
ランジャー型固着具4を解放位置に保持した状態におい
て、プランジャー型固着具4が凹部3中に進入しうる方
向にパレット2を搬送し、油圧または空気圧式シリンダ
機構5を動作させてピストン6を下降させ、プランジャ
ー型固着具4をもってパレット2をテーブルlにクラン
プするものである。
In the figure, 1 is a table and 2 is a balent. The pallet 2 has four parts 3 formed near its bottom surface parallel to the surface of the table l, and a plunger-type fixing device that fits into this recess 3. The tool 4 is driven by a piston 6 of a hydraulic or pneumatic cylinder mechanism 5. When clamping the pallet 2 to the table 1, the pallet 2 is transported in a direction in which the plunger type fixture 4 can enter the recess 3 while the plunger type fixture 4 is held in the released position. , a hydraulic or pneumatic cylinder mechanism 5 is operated to lower a piston 6, and a plunger type fixture 4 is used to clamp the pallet 2 to a table l.

か−る従来技術における工作機械におけるパレットクラ
ンプ装置にあっては、(イ)パレットの底部に抑止部材
等を設ける必要があり、パレットの構造が複雑であるこ
と、(ロ)パレットヲテーブルにクランプする場合、パ
レットの搬送方向にM@があること、(ハ)油圧源・空
気圧源等のエネルギー源が必要であること、(ニ)クラ
ン ゛プ装置が不測の事情により停止した場合、解放状
態(非クランプ状態)となる1丁能性があり安全性に欠
けること等の欠点がある。
In the conventional pallet clamping device for machine tools, (a) it is necessary to provide a restraining member etc. at the bottom of the pallet, making the structure of the pallet complicated; and (b) it is difficult to clamp the pallet to the table. (c) An energy source such as a hydraulic power source or pneumatic source is required; (d) If the clamping device stops due to unforeseen circumstances, it must be in the released state. There are drawbacks such as a lack of safety as there is a single-clamp function in which the clamp is in a non-clamped state.

(4)発明の目的 本発明の目的は、これらの欠点を解消することにあり、
パレット底部に抑止部材等を設ける必要かなく、パレッ
トの構造か簡略であり、パレットをクランプする場合、
いづれの方向からパレットを搬送してもよく、油圧源・
空気源等のクランプ用エネルギー源の必要がなく、しか
も、クランプ装置か停止してもクランプ状態が保持され
て安全性かすぐれている利益を有する工作機械における
パレットクランプ装置を提供することにある。
(4) Purpose of the invention The purpose of the present invention is to eliminate these drawbacks,
There is no need to provide a restraining member at the bottom of the pallet, the pallet structure is simple, and when clamping the pallet,
Pallets can be transported from either direction, and a hydraulic source or
To provide a pallet clamping device for a machine tool that does not require a clamping energy source such as an air source, and has the advantage of superior safety by maintaining the clamped state even if the clamping device is stopped.

(5)発明の構成 本発明の構成は、被加工体におけるパレット21をテー
ブル11にクランプする、工作機械におけるバレントク
ランプ装置において、前記テーブル11ノ表面4こは前
記パレット21に覆われる領域よりや−狭い領域を囲ん
で気密性弾性部材51がその一1゛イ8が突出するよう
に埋設され、該気密性弾性部材埋設領域に囲まれる領域
に四部31が形成され、該凹部31の中に制御可能な発
熱体41が収納されてなることを特徴とする、工作機械
におけるパレットクランプ装置にある。
(5) Structure of the Invention The structure of the present invention is such that in a valent clamp device for a machine tool that clamps a pallet 21 in a workpiece to a table 11, the surface 4 of the table 11 is wider than the area covered by the pallet 21. - An airtight elastic member 51 is embedded in a narrow area so that one part 18 protrudes, and a four part 31 is formed in the area surrounded by the airtight elastic member embedding area, and in the recess 31. A pallet clamp device for a machine tool is characterized in that a controllable heating element 41 is housed.

本発明は、真空チャンクの原理を利用したものでJうり
、テーブルIIの表面に設けられた凹部31に閉し込め
られた空気の収縮を利用して、クランプ用の真空を得る
こととし、この空気の収縮は、クランプに先立ち加温さ
れて温度が高くなっていた空気を、パレット21をもっ
て四部31を覆った後冷却することによって実現するこ
ととし、更に、真空の保持を確実にするために上記の四
部を0リング等の気密性弾性部材51をもって囲み、又
、摩擦係数を上昇するためにパレット底面の表面はいく
らか粗面としておくものである。
The present invention utilizes the vacuum chunk principle, and utilizes the contraction of air trapped in a recess 31 provided on the surface of table II to obtain a vacuum for clamping. The air is contracted by cooling the air, which has been heated prior to clamping, after covering the four parts 31 with the pallet 21. Furthermore, in order to ensure that the vacuum is maintained, The above four parts are surrounded by an airtight elastic member 51 such as an O-ring, and the bottom surface of the pallet is made somewhat rough to increase the coefficient of friction.

そして、更に、テーブル11の凹部31に近接して、四
部31とは連通していない空洞61を、テーブル11の
中に設け、クランプ時にこの空洞Bl中の空気を冷却す
ることとすれば、クランプ時間の短縮に有効である。
Furthermore, if a cavity 61 is provided in the table 11 that is close to the recess 31 of the table 11 and does not communicate with the fourth part 31, and the air in this cavity Bl is cooled during clamping, the clamp This is effective in reducing time.

(6)発明の実施例 以下、図面を参照しつ一1本発明の一実施例に係る工作
機械におけるパレ・ントクランプ装置について説明する
(6) Embodiments of the Invention Hereinafter, a parent clamp device for a machine tool according to an embodiment of the present invention will be described with reference to the drawings.

第2図参照 図において、11はテーブルであり、21はパレン]・
であり、そのj戊面はいくらか粗面としである。
In the diagram shown in FIG. 2, 11 is a table, 21 is a paren]
The j-face is somewhat rough.

テーブル11の表面にはパレット21によって覆われる
領域よりや−狭い領域を囲むようにOリング等の気密性
弾性部材51が埋設しである。そして、この気密性弾性
部材51の−h部はテーブル11の表面上に突出するよ
うにされている。パレット21か乗せられた状態での気
密効果を良好にするためである。気密性弾性部材51に
囲まれた領域に四部31か形成されており、この四部3
1中にはヒータ等点滅6f能で制御しうる発熱体41が
収納されている。
An airtight elastic member 51 such as an O-ring is embedded in the surface of the table 11 so as to surround an area that is narrower than the area covered by the pallet 21. The -h portion of the airtight elastic member 51 is configured to protrude above the surface of the table 11. This is to improve the airtight effect when the pallet 21 is placed on it. Four parts 31 are formed in the area surrounded by the airtight elastic member 51, and these four parts 3
A heating element 41, such as a heater, which can be controlled with a blinking 6f function is housed in the heating element 1.

更に、好ましくは、テーブル11の中に、凹部31に近
接して空洞61が設けられており、この空洞61には、
冷却装置面が設けられるか、または、配管71.72を
介して冷却風を供給しうるようにされている。
Furthermore, preferably, a cavity 61 is provided in the table 11 adjacent to the recess 31, and this cavity 61 includes:
A cooling device surface is provided or cooling air can be supplied via pipes 71,72.

パレット21をテーブル11にクランプするにあたって
は、ます、ヒータ等の発熱体41を加熱して四部31中
の空気を加熱して膨張させておく。その状態で、バレン
ト21を所定の位置に乗せ、発熱体41の加熱を停止す
ると凹部31中の空気の温度が下り、収縮して真空状態
になり、パレット21がテーブル11にクランプされる
。このとき、パレット21とテーブル11の表面の接合
面はOリング等の気密性弾性部材51によってシールさ
れているので四部31の内部は長期間真空状態に保持さ
れてクランプ状態に保たれる。
When clamping the pallet 21 to the table 11, a heating element 41 such as a heater is heated to heat and expand the air in the four parts 31. In this state, when the balent 21 is placed in a predetermined position and the heating of the heating element 41 is stopped, the temperature of the air in the recess 31 decreases, contracts and becomes a vacuum state, and the pallet 21 is clamped to the table 11. At this time, since the joint surface between the pallet 21 and the table 11 is sealed by an airtight elastic member 51 such as an O-ring, the inside of the four parts 31 is kept in a vacuum state for a long period of time and kept in a clamped state.

パレット21の底面はいくらか粗面とされているので、
摩擦係数が大きく、パレット21とテーブル11の接合
面に接する方向のスラストに対する抵抗力は大きい。
Since the bottom surface of the pallet 21 is somewhat rough,
The coefficient of friction is large, and the resistance force against thrust in the direction of contact with the joint surface between the pallet 21 and the table 11 is large.

加工が完了した後発熱体41を再び加熱すれば、四部3
1中の空気は再び膨張してクランプ力を失うので、パレ
ット21の取りはずしは容易に可能となる。
After the processing is completed, if the heating element 41 is heated again, the four parts 3
Since the air in the pallet 1 expands again and loses its clamping force, the pallet 21 can be easily removed.

又、テーブル中に空洞61が設けられておりこの空洞8
1の空気を冷却しうるようにされている場合は、パレッ
ト21を所定の位置に乗せた後この空洞81中の空気を
冷却すればクランプ力が発生するまで時間が短縮できる
とともに、クランプ状態に保持する期間の延長・制御が
可能である。
Also, a cavity 61 is provided in the table, and this cavity 8
If the air in the cavity 81 can be cooled, cooling the air in the cavity 81 after placing the pallet 21 in a predetermined position can shorten the time until clamping force is generated, and the clamped state can be achieved. It is possible to extend and control the retention period.

(7)発明の効果 以−j二説明せるとおり、本発明によれば、パレ・ント
底部に拘止部材等を設ける必要がなく、パレ、2トの構
造が簡略であり、パレットをクランプする場合、パレッ
トをいづれの方向から搬送してもよく、油圧源・空気源
等のクランプ用エネルギー源の必要がなく、しかも、ク
ランプ装置が停止してもクランプ状態か保持されて安全
性がすぐれて0る利益を有する工作機械におけるパレッ
トクランプ装置を提供することができる。
(7) Effects of the Invention As explained below, according to the present invention, there is no need to provide a restraining member etc. at the bottom of the pallet, the structure of the pallet and the two pallets is simple, and the pallet can be clamped easily. In this case, the pallet can be transported from either direction, there is no need for a clamping energy source such as a hydraulic power source or an air source, and the clamped state is maintained even if the clamping device stops, resulting in excellent safety. It is possible to provide a pallet clamping device in a machine tool that has advantages of zero.

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

第1図は従来技術における工作機械におけるパレットク
ランプ装置の概念的構成図である。第2図は本発明の一
実施例に係る工作機械におけるパレットクランプ装置の
概念的構成図である。 1.11舎・・テーブル、2.21@ 響・パレット、
3・・・凹部、4・Φ・プランジャー型固着具、 5・
・・空気圧式シリンダ機構、6・・Φピストン、 31
11・争凹部、 41−−−発熱体、 51・・・気密
性弾性部材、 61・・・空洞。 代理人 弁理士 寒川誠−
FIG. 1 is a conceptual configuration diagram of a pallet clamp device in a machine tool in the prior art. FIG. 2 is a conceptual configuration diagram of a pallet clamp device in a machine tool according to an embodiment of the present invention. 1.11 building... table, 2.21 @ Hibiki Palette,
3... recess, 4, Φ, plunger type fixing tool, 5,
・・Pneumatic cylinder mechanism, 6・・Φ piston, 31
11. Recessed portion, 41 --- Heating element, 51... Airtight elastic member, 61... Cavity. Agent Patent Attorney Makoto Samukawa

Claims (2)

【特許請求の範囲】[Claims] (1)被加工体を支持するノくレット21をテーブル1
1にクランプする、工作機械におけるノ(レットクラン
プ装置において、前記テーブルIIの表面には前記パレ
ット21に覆われる領域よりや一部1.N領域を囲んで
気密性弾性部材51がその一部が突出するように埋設さ
れ、該気雀性弾性部材埋設領域←こ囲まれる領域に四部
31が形成され、該凹部31の中に制御可能な発熱体4
1が収納されてなることを特徴とする、工作機械におけ
る)くレットクランプ装置。
(1) Place the knotlet 21 that supports the workpiece on the table 1.
In a machine tool clamping device for clamping a machine tool, a part of the surface of the table II is covered with an airtight elastic member 51 surrounding a part 1.N area rather than the area covered by the pallet 21. A controllable heating element 4 is buried in the concave part 31 and is buried in a protruding manner.
A pellet clamp device (for a machine tool), characterized in that: 1 is housed therein.
(2)前記テーブル11の中には前記四部314こ近接
して空洞61か設けられており、該空洞61中番と冷却
装置か設けられ、または、冷却風送入・出ロア1力く開
口している、特許請求の範囲第1項記載の工作機械にお
けるバレントクランプ装置。
(2) A cavity 61 is provided in the table 11 adjacent to the four parts 314, and a cooling device is provided in the middle of the cavity 61, or a cooling air intake/output lower part is opened. A valent clamp device for a machine tool according to claim 1.
JP19694783A 1983-10-22 1983-10-22 Pallet clamping apparatus for machine tool Pending JPS6090646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19694783A JPS6090646A (en) 1983-10-22 1983-10-22 Pallet clamping apparatus for machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19694783A JPS6090646A (en) 1983-10-22 1983-10-22 Pallet clamping apparatus for machine tool

Publications (1)

Publication Number Publication Date
JPS6090646A true JPS6090646A (en) 1985-05-21

Family

ID=16366301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19694783A Pending JPS6090646A (en) 1983-10-22 1983-10-22 Pallet clamping apparatus for machine tool

Country Status (1)

Country Link
JP (1) JPS6090646A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652075A2 (en) * 1993-09-14 1995-05-10 Eduard Huber Management Ag Device for the machining of workpieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652075A2 (en) * 1993-09-14 1995-05-10 Eduard Huber Management Ag Device for the machining of workpieces
EP0963808A3 (en) * 1993-09-14 2002-10-23 Eduard Huber Management Ag Machine table in the form of a workpiece holder for the machining of the workpieces

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