JPH03281137A - Clamp structure - Google Patents

Clamp structure

Info

Publication number
JPH03281137A
JPH03281137A JP7668990A JP7668990A JPH03281137A JP H03281137 A JPH03281137 A JP H03281137A JP 7668990 A JP7668990 A JP 7668990A JP 7668990 A JP7668990 A JP 7668990A JP H03281137 A JPH03281137 A JP H03281137A
Authority
JP
Japan
Prior art keywords
arm
workpiece
clamp structure
contact
arrow
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
JP7668990A
Other languages
Japanese (ja)
Inventor
Atsushi Ozawa
淳 小澤
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.)
Toshiba Corp
Toshiba Computer Engineering Corp
Original Assignee
Toshiba Corp
Toshiba Computer Engineering 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 Toshiba Corp, Toshiba Computer Engineering Corp filed Critical Toshiba Corp
Priority to JP7668990A priority Critical patent/JPH03281137A/en
Publication of JPH03281137A publication Critical patent/JPH03281137A/en
Pending legal-status Critical Current

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  • Jigs For Machine Tools (AREA)

Abstract

PURPOSE:To certainly position to fix a workpiece to a working table by providing elastic bodies in an extended state for turning an arm, on both sides of a shaft support part of the arm having projecting parts at both ends thereof for abutting on the workpiece. CONSTITUTION:The clamp structure consists of an arm 12 having contact parts 12a, 12b on both sides thereof for abutting on a workpiece, an arm stand 14 having a shaft support part 13 for turnably shaft supporting the arm 12 and elastic bodies 15 in an extended state on both sides of the shaft support part and between the arm 12 and the arm stand 14. When the contact part 12a of the arm 12 abuts on an end surface 22a of a tilted workpiece 22, turning force in the arrow H direction acts on the arm 12. When the clamp structure is further pressed on the workpiece 22, the other contact part 12 also abuts on the end surface 22a. When the workpiece 22 abuts on stoppers 23b, 24, recovering force, in the arrow J direction, of one side elastic body 15a being compressed exerts force to turn the arm 12 in the K direction so that the workpiece 22 is fixed without tilting.

Description

【発明の詳細な説明】 [発明の目的コ (産業上の利用分野) 本発明は、自動加工機器等の加工機器に於いて、被加工
物を加工部に位置決め固定するクランプ構造に関する。
DETAILED DESCRIPTION OF THE INVENTION [Objective of the Invention (Industrial Application Field) The present invention relates to a clamp structure for positioning and fixing a workpiece to a processing section in processing equipment such as automatic processing equipment.

(従来の技術及び解決しようとする課題)従来、自動加
工機器等の加工機器に於ける被加工物のクランプ構造は
、第6図に示すように加工台上に設けられた加工物22
を位置決めするストッパ23 a 、 23 b 、 
24と、被加工物22をストッパに押し当てる当接部材
25とから構成されている。通常、被加工物22は、第
6図(1)に示すように当接部材25によりストッパ2
3a、23b、24に押し当てられて位置決めされて固
定されていた。しかし、第6図(II)に示すように傾
いて置かれた被加工物22は、そのままの状態でストッ
パ23aには当接せずに、23b、 24のみに押し当
てられて固定される。
(Prior Art and Problems to be Solved) Conventionally, a workpiece clamping structure in processing equipment such as automatic processing equipment has a structure in which a workpiece 22 is placed on a processing table as shown in FIG.
stoppers 23a, 23b,
24, and an abutment member 25 that presses the workpiece 22 against the stopper. Normally, the workpiece 22 is moved to the stopper 2 by the abutting member 25 as shown in FIG. 6(1).
3a, 23b, and 24, and was positioned and fixed. However, as shown in FIG. 6(II), the workpiece 22 placed at an angle does not come into contact with the stopper 23a, but is pressed against only the stoppers 23b and 24 and is fixed.

このように傾いて固定された被加工物22は、位置決め
されていないので寸法通り加工されなかったり、加工機
器の加工中の振動により加工台から外れてしまう等の欠
点があった。又、被加工物22を加工台に固定する際に
クランプ構造に無理な力がかかり損傷する場合がある。
The workpiece 22 that is tilted and fixed in this manner has drawbacks such as not being properly machined because it is not positioned, or coming off the workbench due to vibrations of the processing equipment during processing. Further, when fixing the workpiece 22 to the processing table, an excessive force may be applied to the clamp structure and damage may occur.

本発明は、上記のような欠点を解決するもので、被加工
物を確実に加工台に位置決め固定するクランプ構造を提
供することを目的とする。
The present invention solves the above-mentioned drawbacks, and aims to provide a clamp structure that reliably positions and fixes a workpiece to a processing table.

[発明の構成] (課題を解決するための手段) 本発明のクランプ構造は、被加工物に当接する接触部分
を両端に有するアームと、前記アームを回動自在に軸支
する軸支部を有するアーム台と、前記軸支部の両側に前
記アームを回動するように伸長された状態で前記アーム
と前記アーム台との間に設けられた弾性体とから構成さ
れていることを特徴とする。
[Structure of the Invention] (Means for Solving the Problems) The clamp structure of the present invention includes an arm having a contact portion at both ends that comes into contact with a workpiece, and a pivot support that rotatably supports the arm. The present invention is characterized in that it is comprised of an arm stand and an elastic body provided between the arm and the arm stand in an extended state so as to rotate the arm on both sides of the pivot support.

(作用) アームは、被加工物に一方の接触部分が当接すると一方
の弾性体を圧縮して回動した後、前記−方の弾性体の復
帰力により他方の接触部分を前記被加工物に当接するよ
うに回動する。
(Function) When one contact portion comes into contact with the workpiece, the arm compresses one elastic body and rotates, and then the other contact portion is moved against the workpiece by the restoring force of the negative elastic body. Rotate so that it touches the.

(実施例) 以下、図面を参照して本発明の実施例について説明する
(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

第1図は、本発明の一実施例のクランプ構造の斜視図で
ある。クランプ構造11は、図示せぬ被加工物に当接す
る接触部分12a、 12bを両端に有するアーム12
と、アーム12を回動自在に軸支する軸支部13を有す
るアーム台14と、軸支部13の両側に伸長された状態
でアーム12とアーム台14との間に設けられている弾
性体15とから構成されている。
FIG. 1 is a perspective view of a clamp structure according to an embodiment of the present invention. The clamp structure 11 includes an arm 12 having contact portions 12a and 12b at both ends that come into contact with a workpiece (not shown).
an arm stand 14 having a pivot support 13 that rotatably supports the arm 12; and an elastic body 15 provided between the arm 12 and the arm stand 14 in an extended state on both sides of the pivot support 13. It is composed of.

第2図は、第1図に於けるアームとアーム台とを分割し
てクランプ構造の構成を示した斜視図である。アーム台
14には、弾性体15を支え案内する支えピン16と、
アーム12を回動自在に軸支する係合部17とが形成さ
れている。アーム12には、軸支ピン18が挿入される
貫通穴19と、支えピン16が可動する溝部20と、係
合部17が挿入される係合溝部21が形成されている。
FIG. 2 is a perspective view showing the configuration of the clamp structure by dividing the arm and arm stand in FIG. 1. The arm stand 14 includes a support pin 16 that supports and guides the elastic body 15;
An engaging portion 17 that rotatably supports the arm 12 is formed. The arm 12 is formed with a through hole 19 into which the pivot pin 18 is inserted, a groove 20 in which the support pin 16 is movable, and an engagement groove 21 into which the engagement part 17 is inserted.

第3図は、第1図に於けるクランプ構造の平面図である
。第3図に示すように、アーム12は、軸支部13によ
りアーム台14に矢印A方向に回動自在に軸支されてい
る。弾性体15は、予めアーム12の一側面12aとア
ーム台14の一側面14aとの隙間より大きく形成され
ているものを圧縮した状態で支えピン16に挿入されて
いる。これによってアーム12は、両側の弾性体15に
同じ力で押されているので、釣り合った状態、即ちアー
ム12の一側面12cとアーム台14の一側面14aと
が平行になった状態で保持されている。
FIG. 3 is a plan view of the clamp structure in FIG. 1. As shown in FIG. 3, the arm 12 is rotatably supported by a shaft support 13 on an arm stand 14 in the direction of arrow A. As shown in FIG. The elastic body 15 is inserted into the support pin 16 in a compressed state, which is formed in advance to be larger than the gap between the one side surface 12a of the arm 12 and the one side surface 14a of the arm base 14. As a result, the arm 12 is pushed by the elastic bodies 15 on both sides with the same force, so it is held in a balanced state, that is, one side 12c of the arm 12 and one side 14a of the arm stand 14 are parallel to each other. ing.

次に、クランプ構造の動作について説明する。Next, the operation of the clamp structure will be explained.

第4図は、アームの一方の接触部分を加圧した状態を示
した平面図である。第4図に示すようにアーム12を一
方の接触部分12aに矢印B方向から加圧して矢印E方
向に回動させる。これにより、一方の弾性体15aがア
ーム12の一側面+2cに押されて矢印り方向に圧縮さ
れる。アーム12は、加圧される力によって最大で溝部
20aの奥面2OAに支えピン16aが当接するまで矢
印E方向に回動することが可能である。一方、圧縮され
た弾性体15aには矢印F方向への復帰力が作用する。
FIG. 4 is a plan view showing a state in which one contact portion of the arm is pressurized. As shown in FIG. 4, the arm 12 is rotated in the direction of arrow E by applying pressure to one contact portion 12a from the direction of arrow B. As a result, one elastic body 15a is pushed by one side surface +2c of the arm 12 and compressed in the direction of the arrow. The arm 12 can be rotated in the direction of arrow E by the applied force until the support pin 16a comes into contact with the inner surface 2OA of the groove portion 20a. On the other hand, a returning force in the direction of arrow F acts on the compressed elastic body 15a.

この復帰力によってアーム12には、矢印G方向への回
動力が作用する。即ち、アームの接触部分の一方が加圧
されると、圧縮された弾性体が復帰する際に他方の接触
部分に回動力を与える作用が生ずる。
This return force causes a rotational force in the direction of arrow G to act on the arm 12. That is, when one of the contact portions of the arm is pressurized, when the compressed elastic body returns to its original position, an action is produced that applies rotational force to the other contact portion.

次に、本発明の作用について説明する。Next, the operation of the present invention will be explained.

第5図は、クランプ構造の動作を説明した平面図である
。(I)に示すような無負荷時には、アム12は両端の
弾性体15a、 15bによって釣り合った状態に保た
れている。以下、(IT)〜(TV)は、例えば加工台
上に傾いて設置されている被加工物にクランプ構造が押
し当てられていく経過を示している。先ず、(II)に
示すように傾いた被加工物22の一端面22aにアーム
12の一方の接触部分12aが当接する。被加工物22
に接触すると、アーム12には、矢印H方向への回動力
が作用する。
FIG. 5 is a plan view illustrating the operation of the clamp structure. When there is no load as shown in (I), the am 12 is kept in a balanced state by the elastic bodies 15a and 15b at both ends. Hereinafter, (IT) to (TV) show the progress in which the clamp structure is pressed against a workpiece that is tilted and installed on a processing table, for example. First, as shown in (II), one contact portion 12a of the arm 12 comes into contact with one end surface 22a of the inclined workpiece 22. Workpiece 22
When the arm 12 comes into contact with the arm 12, a rotational force in the direction of the arrow H acts on the arm 12.

更にクランプ構造11を被加工物22に押し当てていく
と、(I[r)に示すように一方の弾性体15aが矢印
■方向に圧縮されてアーム12が矢印H方向に回動する
。これによって一方の接触部分12aに続いて他方の接
触部分12bも被加工物22の一端面22aに当接した
状態になる。このままの状態で更にクランプ構造を押し
ていくと、被加工物22がストッパ23b、24に当接
される。このまま更にクランプ構造を押していくと、圧
縮された一方の弾性体15aの矢印J方向への復帰力に
よりアーム12を矢印に方向に回動させる力が作用する
。この作用により被加工物22が一方の接触部分12a
により当接していなかったストッパ23aにも当接され
(IV)に示すように傾きなく固定される。
When the clamp structure 11 is further pressed against the workpiece 22, one of the elastic bodies 15a is compressed in the direction of the arrow ■, and the arm 12 rotates in the direction of the arrow H, as shown in (I[r). As a result, following one contact portion 12a, the other contact portion 12b also comes into contact with one end surface 22a of the workpiece 22. When the clamp structure is further pushed in this state, the workpiece 22 comes into contact with the stoppers 23b and 24. If the clamp structure is further pushed in this state, a force for rotating the arm 12 in the direction of the arrow is exerted by the return force of one of the compressed elastic bodies 15a in the direction of the arrow J. Due to this action, the workpiece 22 is
The stopper 23a that was not in contact is also brought into contact with the stopper 23a, and is fixed without tilting as shown in (IV).

以上のように本発明のクランプ構造は、傾いた被加工物
に弾性体が圧縮されて当接する接触部分を、圧縮された
弾性体の復帰力により被加工物の傾きをなくしてからス
トッパに押し当て固定するものである。
As described above, in the clamp structure of the present invention, the elastic body is compressed and contacts the tilted workpiece, and the contact part is pressed against the stopper after eliminating the tilt of the workpiece by the restoring force of the compressed elastic body. It is something that is fixed by applying it.

[発明の効果] 以上のように本発明によると、傾いた被加工物をアーム
を回動する弾性体の復帰力を利用して傾きをとってスト
ッパに固定することができる。
[Effects of the Invention] As described above, according to the present invention, the tilted workpiece can be fixed to the stopper by correcting the tilt by using the restoring force of the elastic body that rotates the arm.

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

第1図は、本発明の一実施例のクランプ構造の斜視図、
第2図は、第1図に於けるアームとアーム台とを分割し
てクランプ構造の構成を示した斜視図、第3図は、第1
図に於けるクランプ構造の平面図、第4図は、アームの
一方の接触部分を加圧した状態を示した平面図、第5図
は、クランプ構造の動作を説明した平面図、第6図は、
従来のクランプ構造の構成を示した平面図である。 11・・・クランプ構造、 12・・・アーム、 13・・・軸支部、 14・・・アーム台、 15・・・弾性体。
FIG. 1 is a perspective view of a clamp structure according to an embodiment of the present invention;
FIG. 2 is a perspective view showing the configuration of the clamp structure by dividing the arm and arm stand in FIG. 1, and FIG.
Fig. 4 is a plan view of the clamp structure in which one contact portion of the arm is pressurized, Fig. 5 is a plan view illustrating the operation of the clamp structure, and Fig. 6 is a plan view of the clamp structure. teeth,
FIG. 2 is a plan view showing the configuration of a conventional clamp structure. DESCRIPTION OF SYMBOLS 11... Clamp structure, 12... Arm, 13... Pivotal support, 14... Arm stand, 15... Elastic body.

Claims (1)

【特許請求の範囲】[Claims] 被加工物に当接する突起部を両端に有するアームと、前
記アームを回動自在に軸支する軸支部を有するアーム台
と、前記軸支部の両側に前記アームを回動するように伸
長された状態で前記アームと前記アーム台との間に設け
られた弾性体とから構成されていることを特徴とするク
ランプ構造。
an arm having protrusions at both ends that come into contact with a workpiece; an arm stand having a pivot supporting the arm rotatably; 1. A clamp structure comprising an elastic body provided between the arm and the arm base in a state where the clamp structure is in a state where the clamp structure is in a state where the clamp structure is in a state where
JP7668990A 1990-03-28 1990-03-28 Clamp structure Pending JPH03281137A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7668990A JPH03281137A (en) 1990-03-28 1990-03-28 Clamp structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7668990A JPH03281137A (en) 1990-03-28 1990-03-28 Clamp structure

Publications (1)

Publication Number Publication Date
JPH03281137A true JPH03281137A (en) 1991-12-11

Family

ID=13612429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7668990A Pending JPH03281137A (en) 1990-03-28 1990-03-28 Clamp structure

Country Status (1)

Country Link
JP (1) JPH03281137A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015139855A (en) * 2014-01-29 2015-08-03 ファナック株式会社 Workpiece positioning device for positioning workpiece on two reference planes
JP2016101642A (en) * 2014-11-28 2016-06-02 ファナック株式会社 Workpiece fixing device which presses plurality of parts of workpiece
JP2019093475A (en) * 2017-11-22 2019-06-20 大同マシナリー株式会社 Clamp device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015139855A (en) * 2014-01-29 2015-08-03 ファナック株式会社 Workpiece positioning device for positioning workpiece on two reference planes
US9333610B2 (en) 2014-01-29 2016-05-10 Fanuc Corporation Workpiece positioning device positioning workpiece at two reference surfaces
JP2016101642A (en) * 2014-11-28 2016-06-02 ファナック株式会社 Workpiece fixing device which presses plurality of parts of workpiece
US9751172B2 (en) 2014-11-28 2017-09-05 Fanuc Corporation Workpiece fastening device for pressing plurality of locations of workpiece
JP2019093475A (en) * 2017-11-22 2019-06-20 大同マシナリー株式会社 Clamp device

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