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JPH10311308A - Clamp device and drive force input structure to clamp lever - Google Patents

Clamp device and drive force input structure to clamp lever

Info

Publication number
JPH10311308A
JPH10311308A JP13931097A JP13931097A JPH10311308A JP H10311308 A JPH10311308 A JP H10311308A JP 13931097 A JP13931097 A JP 13931097A JP 13931097 A JP13931097 A JP 13931097A JP H10311308 A JPH10311308 A JP H10311308A
Authority
JP
Japan
Prior art keywords
clamp
pair
shaft member
pivot
shaft
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
Application number
JP13931097A
Other languages
Japanese (ja)
Other versions
JP4041554B2 (en
Inventor
Ichiro Kitaura
一郎 北浦
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.)
Pascal KK
Original Assignee
Pascal KK
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 Pascal KK filed Critical Pascal KK
Priority to JP13931097A priority Critical patent/JP4041554B2/en
Publication of JPH10311308A publication Critical patent/JPH10311308A/en
Application granted granted Critical
Publication of JP4041554B2 publication Critical patent/JP4041554B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Clamps And Clips (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve turning quality of a shaft member, and prevent wearing of a clamp lever, shaft member and a wedge member. SOLUTION: In a drive force input structure 60 of a clamp device, a pair of pivotally supported shaft parts 30 pivotally supported to a pivotal support hole 36 of an input part 22 are formed in front/rear both end parts of a shaft member 4, and a notched surface 31 of width equal to a diameter of the shaft member 4 is formed between a pair of the pivotally supported shafts 30. A partial cylinder surface 32 turnably engaged with a seat surface 37 of the input part 22 is formed in an upper side of the notched surface 31, consequently, even when drive force is input to the input part 22 through the shaft member 4, turning quality of the shaft member 4 is improved without deforming a shape of the partial cylinder surface 32 and the seat surface 37.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】 本発明は、金型等のクラン
プ対象体を固定するクランプ装置及びクランプレバーへ
の駆動力入力構造に関し、特に、アクチュエータで移動
駆動されるウェッジ部材により倍力して、クランプレバ
ーの入力部に駆動力を入力するようにしたクランプ装置
に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp device for fixing a clamp target such as a mold and a drive force input structure to a clamp lever, and more particularly, to a wedge member driven and moved by an actuator, The present invention relates to a clamp device configured to input a driving force to an input portion of a clamp lever.

【0002】[0002]

【従来の技術】 従来、金型等を所定の据付け部(プレ
ス機械のボルスタの上面やラムの下端の可動盤の下面
等)に固定する比較的小型のクランプ装置が種々実用に
供されているが、そのうち、クランプ本体と、クランプ
本体に枢支軸を介して枢支され出力部と入力部を有する
クランプレバーと、アクチュエータにより移動駆動され
クランプレバーの入力部に駆動力を倍力して入力するウ
ェッジ部材を有するクランプ装置が広く実用に供されて
いる。
2. Description of the Related Art Conventionally, various relatively small clamping devices for fixing a die or the like to a predetermined installation portion (the upper surface of a bolster of a press machine or the lower surface of a movable plate at the lower end of a ram) have been put to practical use. Among them, a clamp body, a clamp lever pivotally supported on the clamp body via a pivot shaft and having an output portion and an input portion, and a driving force moved by an actuator and input to the input portion of the clamp lever by boosting the driving force. Clamping devices having wedge members are widely used in practice.

【0003】この種のクランプ装置におけるクランプレ
バーへの駆動力入力構造においては、図8、図9に示す
ように、切欠き面111 が形成された軸部材110 を有し、
この軸部材110 の部分円筒面112 が、クランプレバー10
0 の入力部101 に形成された部分円筒状の座面102 に回
動自在に係合している。切欠き面111 は入力部101 の下
面側へ露出し、左方へ移動駆動されるウェッジ部材115
により倍力して、軸部材110 を介して入力部101 に駆動
力が入力され、クランプレバー100 が枢支軸心103 回り
に所定角度回動しても軸部材110 が回動して、ウェッジ
部材115 の傾斜面116 が入力部101 に接触せずに切欠き
面111 に面接触する状態が保持される。
[0003] A structure for inputting driving force to a clamp lever in this type of clamp device has a shaft member 110 having a notch surface 111 as shown in FIGS. 8 and 9.
The partial cylindrical surface 112 of the shaft member 110 is
The input portion 101 is rotatably engaged with a partially cylindrical seating surface 102 formed on the input portion 101. The notch surface 111 is exposed on the lower surface side of the input unit 101, and is moved to the left by a wedge member 115.
And the driving force is input to the input portion 101 via the shaft member 110, and even if the clamp lever 100 rotates a predetermined angle around the pivot shaft center 103, the shaft member 110 rotates and the wedge The state where the inclined surface 116 of the member 115 is in contact with the notch surface 111 without contacting the input unit 101 is maintained.

【0004】[0004]

【発明が解決しようとする課題】 前記クランプ装置で
は、クランプレバー100 の部分円筒状の座面102 に軸部
材110 の部分円筒面112 が係合し、図9に示すように、
左方へ移動駆動されるウェッジ部材115 により、軸部材
110 を介して入力部101 に駆動力が入力される構造であ
るので、クランプレバー100 への駆動力の入力時に軸部
材110 (部分円筒面112 )が変形するし、また、長期に
わたり繰返し使用している間に座面102 とその近傍部が
塑性変形してへたってしまい、図9に示すように、座面
102 の曲率半径が大きくなり、軸部材110 の部分円筒面
112 との接触面積が非常に小さくなり、座面102 と部分
円筒面112 とに作用する面圧が非常に大きくなる。それ
故、軸部材110 の回動性が悪くなり、座面102 や部分円
筒面112 が摩耗し易くなる。
In the clamping device, the partial cylindrical surface 112 of the shaft member 110 engages with the partial cylindrical seating surface 102 of the clamp lever 100, as shown in FIG.
The shaft member is moved by the wedge member
Since the driving force is input to the input unit 101 via the input lever 110, the shaft member 110 (partial cylindrical surface 112) is deformed when the driving force is input to the clamp lever 100, and is used repeatedly for a long time. While the seating surface 102 and the vicinity thereof are plastically deformed and sagged, as shown in FIG.
The radius of curvature of 102 becomes larger, and the partial cylindrical surface of shaft member 110
The contact area with the contact surface 112 becomes very small, and the surface pressure acting on the seat surface 102 and the partial cylindrical surface 112 becomes very large. Therefore, the rotation of the shaft member 110 is deteriorated, and the seating surface 102 and the partial cylindrical surface 112 are easily worn.

【0005】更に、軸部材110 が入力部101 から外れな
いようにするため、座面102 は少なくとも180度円弧
以上の部分円筒状に形成される。その結果、クランプレ
バー100 の入力部101 の下面側へ露出した切欠き面111
の大きさが小さくなるため、切欠き面111 と傾斜面116
とに作用する面圧が大きくなり、切欠き面111 や傾斜面
116 も摩耗し易くなる。
Further, in order to prevent the shaft member 110 from coming off the input portion 101, the seating surface 102 is formed in a partial cylindrical shape having at least a 180-degree arc. As a result, the notch surface 111 exposed to the lower surface side of the input portion 101 of the clamp lever 100
Notch 111 and inclined surface 116
Surface pressure acting on the notch surface 111 and inclined surface
116 also wears easily.

【0006】本発明の目的は、クランプレバーの入力部
に回動可能に設けられた軸部材と入力部に駆動力を入力
するウェッジ部材とを備えたクランプ装置及びクランプ
レバーへの駆動力入力構造において、軸部材の回動性を
向上させること、クランプレバーや軸部材やウェッジ部
材の摩耗を防止すること、等である。
An object of the present invention is to provide a clamp device having a shaft member rotatably provided at an input portion of a clamp lever and a wedge member for inputting a driving force to the input portion, and a driving force input structure to the clamp lever. , To improve the rotation of the shaft member, to prevent wear of the clamp lever, the shaft member, and the wedge member.

【0007】[0007]

【課題を解決するための手段】 請求項1のクランプ装
置は、クランプ本体と、枢支軸を介してクランプ本体に
枢支され先端部に出力部を有するとともに基端部に入力
部を有するクランプレバーと、クランプレバーの入力部
に形成された部分円筒状の座面に回動自在に係合する部
分円筒面と入力部の下面側へ露出した切欠き面を有する
軸部材と、軸部材の切欠き面に面接触する傾斜面を有し
アクチュエータにより移動駆動されるウェッジ部材とを
備えたクランプ装置において、クランプレバーの入力部
の幅方向両端部分には、前記座面に連なる1対の枢支孔
が形成され、軸部材の両端部分には、前記1対の枢支孔
に夫々枢支される枢支軸部が形成され、これら1対の枢
支軸部の間において軸部材に前記切欠き面が形成された
ものである。
According to a first aspect of the present invention, there is provided a clamp device which is pivotally supported by a clamp body via a pivot shaft and has an output portion at a distal end portion and an input portion at a proximal end portion. A shaft member having a lever, a partial cylindrical surface rotatably engaged with a partial cylindrical seating surface formed at an input portion of the clamp lever, and a cutout surface exposed to the lower surface side of the input portion; A wedge member having an inclined surface that is in surface contact with the notch surface and being moved and driven by an actuator, a pair of pivots connected to the seat surface are provided at both ends in the width direction of the input portion of the clamp lever. A support hole is formed, and at both end portions of the shaft member, pivot support shaft portions respectively supported by the pair of pivot support holes are formed, and the shaft member is provided between the pair of pivot support shaft portions. The notched surface is formed.

【0008】アクチュエータによりウェッジ部材が移動
駆動され、ウェッジ部材により軸部材を介して入力部に
駆動力が入力されても、1対の枢支孔は変形しないた
め、部分円筒状の座面の形状が略一定に保持され、ま
た、軸部材の1対の枢支軸部も変形しないため、部分円
筒面の形状が略一定に保持される。それ故、1対の枢支
孔と1対の枢支軸部及び座面と部分円筒面との接触面積
が一定の大きさに保持され、それら接触面に作用する面
圧が高くなるのを抑制でき、軸部材の回動性が向上し、
クランプレバーの枢支孔や座面、軸部材の枢支軸部や部
分円筒面が摩耗し難くなる。
[0008] Even if the wedge member is moved and driven by the actuator, and the driving force is input to the input portion through the shaft member by the wedge member, the pair of pivot holes are not deformed. Is maintained substantially constant, and the pair of pivot shafts of the shaft member are not deformed, so that the shape of the partial cylindrical surface is maintained substantially constant. Therefore, the contact area between the pair of pivot holes, the pair of pivot shafts and the seating surface and the partial cylindrical surface is maintained at a constant size, and the surface pressure acting on those contact surfaces increases. Can be suppressed, the rotation of the shaft member is improved,
The pivot hole and seating surface of the clamp lever, the pivot shaft portion of the shaft member and the partial cylindrical surface are less likely to be worn.

【0009】更に、1対の枢支軸部を1対の枢支孔に枢
支するため、軸部材が入力部から外れないようになるの
で、また、座面と部分円筒面との接触面積を余り大きく
する必要もなくなるので、座面を180度円弧以下の部
分円筒状に形成し、入力部の下面側へ露出させた面積の
大きな切欠き面を設けることが可能になり、切欠き面と
傾斜面とに作用する面圧が低下し、切欠き面や傾斜面も
摩耗し難くなる。
Further, since the pair of pivot shafts are pivotally supported by the pair of pivot holes, the shaft members do not come off from the input portion, and the contact area between the seating surface and the partial cylindrical surface is also improved. It is no longer necessary to make the seating surface too large, so that the seating surface can be formed in a partially cylindrical shape having an arc of 180 degrees or less, and a notch surface having a large area exposed to the lower surface side of the input portion can be provided. The surface pressure acting on the inclined surface and the inclined surface is reduced, and the notched surface and the inclined surface are hardly worn.

【0010】請求項2のクランプ装置は、請求項1の発
明において、前記1対の枢支孔は、クランプレバーの入
力部の幅方向両端部分からウェッジ部材側へ延びる1対
の枢支部に相対向状に形成され、ウェッジ部材は1対の
枢支部の間に遊嵌し、その傾斜面が軸部材の切欠き面に
面接触することを特徴とするものである。それ故、面積
の大きな切欠き面をクランプレバーの入力部の下面側へ
確実に露出させ、その切欠き面に傾斜面を確実に面接触
させることができる。その他請求項1と同様の作用を奏
する。
According to a second aspect of the present invention, in the first aspect of the present invention, the pair of pivot holes are opposed to a pair of pivot portions extending from both ends in the width direction of the input portion of the clamp lever toward the wedge member. The wedge member is loosely fitted between the pair of pivot portions, and its inclined surface is in surface contact with the notched surface of the shaft member. Therefore, the notch surface having a large area can be reliably exposed to the lower surface side of the input portion of the clamp lever, and the inclined surface can be reliably brought into surface contact with the notch surface. Other operations are the same as those of the first aspect.

【0011】請求項3のクランプ装置は、請求項2の発
明において、前記切欠き面は、軸部材の直径と同幅であ
ることを特徴とするものである。それ故、切欠き面と傾
斜面とに作用する面圧を非常に低下させることができ
る。その他請求項2と同様の作用を奏する。
According to a third aspect of the present invention, in the second aspect of the present invention, the notch surface has the same width as the diameter of the shaft member. Therefore, the surface pressure acting on the notch surface and the inclined surface can be greatly reduced. Other effects are the same as those of the second aspect.

【0012】請求項4のクランプ装置は、請求項1〜3
の何れか1項の発明において、前記枢支軸を枢支するク
ランプ本体の1対の枢支孔は、ウェッジ部材の移動方向
に細長い長円孔に形成され、前記クランプレバーは、そ
の出力部をクランプ本体の先端外へ突出したクランプ可
能位置と、クランプ解除状態においてその出力部をクラ
ンプ本体内へ退入させた退入位置とに切換え可能に構成
されたことを特徴とするものである。それ故、クランプ
可能位置のクランプレバーを、クランプを解除した状態
で退入位置に切換えることで、金型等のクランプ対象体
の所定の据え付け部(プレス機械のボルスタの上面等)
への搬出入作業を非常に簡単に行うことができる。その
他請求項1〜3の何れか1項と同様の作用を奏する。
According to a fourth aspect of the present invention, there is provided the clamping device.
In the invention according to any one of the above, a pair of pivot holes of the clamp body that pivotally supports the pivot shaft is formed as an oblong hole elongated in the moving direction of the wedge member, and the clamp lever has an output portion thereof. Can be switched between a clampable position protruding out of the distal end of the clamp body and a retracted position in which the output portion is retracted into the clamp body in a clamp release state. Therefore, by switching the clamp lever at the clampable position to the retracted position in a state where the clamp is released, a predetermined installation portion of the object to be clamped such as a mold (upper surface of a bolster of a press machine).
It is very easy to carry in and out the work. In addition, the same operation as any one of the first to third aspects is achieved.

【0013】請求項5のクランプレバーへの駆動力入力
構造は、クランプ装置のクランプレバーの入力部に形成
された部分円筒状の座面と、この座面に回動自在に係合
する部分円筒面と入力部の外面外へ露出した切欠き面を
有する軸部材と、この軸部材の切欠き面に面接触する傾
斜面を有しアクチュエータからの駆動力を軸部材を介し
て入力部に入力するウェッジ部材とを備えたクランプレ
バーへの駆動力入力構造において、前記入力部の幅方向
両端部分には前記座面に連なる1対の枢支孔が形成さ
れ、前記軸部材の両端部分には前記1対の枢支孔に夫々
枢支される枢支軸部が形成され、これら1対の枢支軸部
の間において軸部材に前記切欠き面が形成されたもので
ある。
According to a fifth aspect of the present invention, there is provided a structure for inputting a driving force to a clamp lever, wherein a partial cylindrical seating surface formed at an input portion of the clamp lever of the clamping device, and a partial cylinder rotatably engaged with the seating surface. A shaft member having a cutout surface exposed to the outside of the surface and the outer surface of the input portion; and a slope having a slope contacting the cutout surface of the shaft member, and inputting a driving force from the actuator to the input portion via the shaft member In a structure for inputting driving force to a clamp lever having a wedge member, a pair of pivot holes connected to the bearing surface are formed at both end portions in the width direction of the input portion, and at both end portions of the shaft member, The pair of pivot holes are formed with pivot shaft portions respectively pivotally supported, and the notch surface is formed in the shaft member between the pair of pivot shaft portions.

【0014】ウェッジ部材によりアクチュエータからの
駆動力が軸部材を介して入力部に入力されても、1対の
枢支孔は変形しないため、部分円筒状の座面の形状が略
一定に保持され、また、1対の枢支軸部も変形しないた
め、部分円筒面の形状が略一定に保持される。それ故、
1対の枢支孔と1対の枢支軸部及び座面と部分円筒面と
の接触面積が一定の大きさに保持され、それら接触面に
作用する面圧が高くなるのを抑制でき、軸部材の回動性
が向上し、クランプレバーの枢支孔や座面、軸部材の枢
支軸部や部分円筒面が摩耗し難くなる。更に、1対の枢
支軸部を1対の枢支孔に枢支するため、軸部材が入力部
から外れないようになるので、また、座面と部分円筒面
との接触面積を余り大きくする必要もなくなるので、座
面を180度円弧以下の部分円筒状に形成し、入力部の
下面側へ露出させた面積の大きな切欠き面を設けること
が可能になり、切欠き面と傾斜面とに作用する面圧が低
下し、切欠き面や傾斜面も摩耗し難くなる。
Even if the driving force from the actuator is input to the input portion via the shaft member by the wedge member, the pair of pivot holes are not deformed, so that the shape of the partially cylindrical seating surface is maintained substantially constant. Also, since the pair of pivot shafts are not deformed, the shape of the partial cylindrical surface is maintained substantially constant. Therefore,
The contact area between the pair of pivot holes, the pair of pivot shafts and the seating surface and the partial cylindrical surface is maintained at a constant size, and it is possible to suppress an increase in surface pressure acting on the contact surfaces. The pivotability of the shaft member is improved, and the pivot hole and seat surface of the clamp lever, the pivot shaft portion of the shaft member, and the partial cylindrical surface are less likely to be worn. Further, since the pair of pivot shafts are pivotally supported by the pair of pivot holes, the shaft members do not come off the input portion, and the contact area between the seating surface and the partial cylindrical surface is too large. Therefore, the seating surface can be formed in a partially cylindrical shape having a circular arc of 180 degrees or less, and a notch surface having a large area exposed to the lower surface side of the input portion can be provided. The surface pressure acting on the notch surface and the notched surface and the inclined surface are hardly worn.

【0015】[0015]

【発明の実施の形態】 以下、本発明の実施の形態につ
いて図面を参照して説明する。本実施形態は、金型をボ
ルスタの上面に固定するクランプ装置に本発明を適用し
た場合の例である。
Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is an example in which the present invention is applied to a clamp device for fixing a mold to an upper surface of a bolster.

【0016】図1〜図4に示すように、クランプ装置1
は、クランプ本体2と、前後方向向きの枢支軸20を介
してクランプ本体2に枢支され左端部に出力部21を有
するとともに右端部に入力部22を有するクランプレバ
ー3と、クランプレバー3の入力部22に駆動力を入力
すま駆動力入力構造60と、駆動力入力構造60のウェ
ッジ部材5を左右方向へ移動駆動するエアシリンダ6等
で構成されている。
As shown in FIG. 1 to FIG.
A clamp lever 3 which is supported by the clamp body 2 via a pivot shaft 20 oriented in the front-rear direction and has an output portion 21 at a left end and an input portion 22 at a right end; The input unit 22 includes a driving force input structure 60 for inputting a driving force to the input unit 22 and an air cylinder 6 for moving the wedge member 5 of the driving force input structure 60 in the left-right direction.

【0017】前記クランプ本体2は、前後1対の壁部材
10,11と、1対の壁部材10,11の間の右下端部
に設けられた直方体状のブロック部材13を有する。壁
部材10,11とブロック部材13は1対のボルト14
等で固定され、壁部材10,11の間に所定前後幅の間
隙15が形成され、この間隙15にクランプレバー3と
軸部材4とウェッジ部材5が移動可能に配設されてい
る。
The clamp body 2 has a pair of front and rear wall members 10 and 11 and a rectangular parallelepiped block member 13 provided at a lower right end portion between the pair of wall members 10 and 11. The wall members 10 and 11 and the block member 13 are formed by a pair of bolts 14.
A gap 15 having a predetermined front and rear width is formed between the wall members 10 and 11, and the clamp lever 3, the shaft member 4, and the wedge member 5 are movably disposed in the gap 15.

【0018】1対の壁部材10,11には、間隙15に
臨む左右方向に細長い1対の長円孔10a,11a(枢
支孔)が相対向状に形成され、これら長円孔10a,1
1aにクランプレバー3の枢支軸20の両端部分が左右
方向へ移動可能に係合し枢支されている。また、壁部材
10,11にはボルト孔10b,11bが形成され、こ
れらボルト孔10b,11bに挿通させた1対のボルト
19により、クランプ本体2がボルスタ9に固定される
(図3参照)。
The pair of wall members 10 and 11 are formed with a pair of oblong holes 10a and 11a (pivot holes) elongated in the left-right direction facing the gap 15 so as to face each other. 1
Both ends of the pivot shaft 20 of the clamp lever 3 are movably engaged in the left-right direction with the clamp lever 3 and are pivotally supported. Bolt holes 10b, 11b are formed in the wall members 10, 11, and the clamp body 2 is fixed to the bolster 9 by a pair of bolts 19 inserted through the bolt holes 10b, 11b (see FIG. 3). .

【0019】前記クランプレバー3は間隙15と略同じ
(その左右両面が1対の壁部材10,11の内面に摺接
する)前後幅を有し、クランプレバー3の中央部分に枢
支軸20が挿通して設けられている。尚、枢支軸20を
クランプレバー3に固定的に設けてもよし回動可能に設
けてもよい。また、枢支軸20の代わりに、長円孔10
a,11aに枢支される枢支軸20の両端部分に相当す
る枢支軸部をクランプレバー3に一体形成してもよい。
The clamp lever 3 has substantially the same front and rear width as the gap 15 (both right and left sides thereof slide on the inner surfaces of the pair of wall members 10 and 11). It is inserted and provided. Note that the pivot shaft 20 may be fixedly provided on the clamp lever 3 or may be rotatably provided. Also, instead of the pivot shaft 20, the oblong hole 10
The pivot shaft portions corresponding to both end portions of the pivot shaft 20 pivotally supported by a and 11a may be formed integrally with the clamp lever 3.

【0020】クランプレバー3は、その出力部21をク
ランプ本体2の左端外へ突出したクランプ可能位置(図
1参照)と、クランプ解除状態においてその出力部21
をクランプ本体2内へ退入させた退入位置(図2参照)
とに亙って切換え可能であり、クランプレバー3がクラ
ンプ位置に位置するとき、枢支軸20の両端部分が1対
の長円孔10a,11aの左端部に当接し、入力部22
に駆動力が入力されると、図1に実線で示す初期姿勢の
クランプレバー3が枢支軸20回りに回動されて図1に
鎖線で示すクランプ姿勢になり、出力部21により金型
Wがクランプされる。尚、クランプ解除状態のクランプ
レバー3の姿勢は初期姿勢である。
The clamp lever 3 has a clampable position (see FIG. 1) where the output portion 21 protrudes outside the left end of the clamp body 2, and the output portion 21 when the clamp is released.
Retracted position of retracted into the clamp body 2 (see FIG. 2)
When the clamp lever 3 is located at the clamp position, both ends of the pivot shaft 20 contact the left ends of the pair of oblong holes 10a and 11a, and the input unit 22 is turned on.
When the driving force is input to the clamp lever 3 in the initial position shown by the solid line in FIG. 1, the clamp lever 3 is rotated around the pivot shaft 20 to the clamp position shown by the chain line in FIG. Is clamped. Note that the posture of the clamp lever 3 in the clamp released state is the initial posture.

【0021】また、クランプレバー3には、枢支軸20
の下側において下方へ延びるレバー部23が一体形成さ
れ、このレバー部23とブロック部材13の間にコイル
バネ24が介装され、このコイルバネ24によりレバー
部23が左側へ付勢されている。そして、コイルバネ2
4の付勢力により、クランプ可能位置におけるクランプ
姿勢のクランプレバー3を初期姿勢に復帰させ、また、
退入位置のクランプレバー3をクランプ可能位置に移動
させるように構成してある。尚、コイルバネ24の左端
部は、バネ受け25を介してレバー部23に連結されて
いる。
The clamp lever 3 has a pivot shaft 20.
A lever 23 extending downward at the lower side is integrally formed, and a coil spring 24 is interposed between the lever 23 and the block member 13, and the lever 23 is urged to the left by the coil spring 24. And coil spring 2
The clamp lever 3 in the clamp position at the clampable position is returned to the initial position by the urging force of 4, and
The clamp lever 3 at the retreat position is moved to a clampable position. The left end of the coil spring 24 is connected to the lever 23 via a spring receiver 25.

【0022】尚、クランプ本体2の上端部分には、クラ
ンプレバー3の前記クランプ可能位置と退入位置を検出
する位置検出機構8が設けられ、この位置検出機構8
は、クランプレバー3の上端の溝部70に係合する係合
部71aを有しクランプレバー3とともに左右方向へ移
動するロッド71、ロッド71を左右方向へガイドする
ガイド部材72、ロッド71の右端部に設けられた押動
部材73、載置板74上に固定されクランプレバー3が
クランプ可能位置と退入位置のときに夫々押動部材73
によりONされるセンサ75,76等で構成され、セン
サ75,76は、電気信号線75a,76aにより制御
部(図示略)に電気的に接続されている。尚、ロッド7
1やセンサ75,76等はカバー部材77でカバーされ
ている。
At the upper end of the clamp body 2, a position detecting mechanism 8 for detecting the clampable position and the retracted position of the clamp lever 3 is provided.
Is a rod 71 having an engaging portion 71a that engages with the groove 70 at the upper end of the clamp lever 3 and moves in the left-right direction together with the clamp lever 3, a guide member 72 that guides the rod 71 in the left-right direction, and a right end of the rod 71. Pushing member 73 provided on the mounting plate 74 when the clamp lever 3 is in the clampable position and the retracted position is fixed on the mounting plate 74, respectively.
The sensors 75 and 76 are electrically connected to a control unit (not shown) by electric signal lines 75a and 76a. The rod 7
1 and the sensors 75 and 76 are covered by a cover member 77.

【0023】前記クランプレバー3の入力部22にエア
シリンダ6の駆動力を入力する駆動力入力構造60につ
いて図1、図2、図5〜図7に基づいて説明する。軸部
材4は、クランプレバー3と同じ(その左右両面が1対
の壁部材10,11の内面に摺接する)前後長を有し、
軸部材4の前後両端部分に1対の枢支軸部30が形成さ
れ、1対の枢支軸部30の間に軸部材4の直径と同幅の
切欠き面31が形成され、切欠き面31の上側に部分円
筒面32が形成されている。
The driving force input structure 60 for inputting the driving force of the air cylinder 6 to the input portion 22 of the clamp lever 3 will be described with reference to FIGS. 1, 2, and 5 to 7. The shaft member 4 has the same front-rear length as the clamp lever 3 (both left and right surfaces are in sliding contact with the inner surfaces of the pair of wall members 10 and 11),
A pair of pivot shaft portions 30 are formed at both front and rear end portions of the shaft member 4, and a notch surface 31 having the same width as the diameter of the shaft member 4 is formed between the pair of pivot shaft portions 30. A partial cylindrical surface 32 is formed above the surface 31.

【0024】一方、クランプレバー3の入力部22に
は、入力部22からウェッジ部材5側(下側)へ延びる
前後1対の枢支部35が形成され、これら枢支部35に
相対向状に形成された1対の枢支孔36に1対の枢支軸
部30が枢支されている。入力部22の下面22aと1
対の枢支部35の下面35aは平行に形成されている。
1対の枢支部35の間において入力部22の下面22a
には、約120度円弧の部分円筒状の座面37が形成さ
れ、座面37に部分円筒面32が摺動自在に係合し、軸
部材4の切欠き面31は入力部22の下側外面22a外
へ露出している。
On the other hand, a pair of front and rear pivot portions 35 extending from the input portion 22 to the wedge member 5 side (lower side) are formed in the input portion 22 of the clamp lever 3, and are formed opposite to each other. A pair of pivot shaft portions 30 are pivotally supported by the pair of pivot holes 36 thus formed. Lower surface 22a of input unit 22 and 1
The lower surfaces 35a of the pair of pivot portions 35 are formed in parallel.
Lower surface 22a of input unit 22 between a pair of pivots 35
Is formed with a partially cylindrical seating surface 37 having an arc of about 120 degrees, the partial cylindrical surface 32 is slidably engaged with the seating surface 37, and the cutout surface 31 of the shaft member 4 is located below the input portion 22. It is exposed outside the side outer surface 22a.

【0025】前記ウェッジ部材5はブロック部材13の
上面に摺動自在に支持され、その上端部分に1対の枢支
部35の間に遊嵌する凸部40が形成され、凸部40の
上面に軸部材4の切欠き面31に面接触する傾斜角a
(例えばa=12度)の傾斜面41が形成されている。
凸部40の前後両側の1対の段落ち面42は、1対の枢
支部35の下面35aから間隙を空けて下面35aと平
行に形成されている。尚、クランプレバー3が初期姿勢
のとき、段落ち面42と前記枢支部35の下面35aが
平行になるように設定されている。
The wedge member 5 is slidably supported on the upper surface of the block member 13, and a convex portion 40 is formed at the upper end of the wedge member 5 so as to be loosely fitted between the pair of pivot portions 35. Inclination angle a that makes surface contact with notch surface 31 of shaft member 4
An inclined surface 41 (for example, a = 12 degrees) is formed.
A pair of stepped surfaces 42 on both front and rear sides of the convex portion 40 are formed in parallel with the lower surface 35 a with a gap from the lower surface 35 a of the pair of pivot portions 35. When the clamp lever 3 is in the initial posture, the step-down surface 42 and the lower surface 35a of the pivotal support 35 are set to be parallel.

【0026】ウェッジ部材5の左端部には、係止部材4
5がボルト45aで固定され、図1の状態から、エアシ
リンダ6によりウェッジ部材5が右方へ移動駆動される
と、係止部材45によりクランプレバー3の入力部22
の被係止部46が係止され、クランプ可能位置のクラン
プレバー3が右方へ移動し図2の退入位置に切換わる。
また、図2の状態から、エアシリンダ6によりウェッジ
部材41左右へ移動駆動されると、コイルバネ24によ
り退入位置のクランプレバー3が左方へ移動し図1のク
ランプ可能位置に切換わる。
At the left end of the wedge member 5, a locking member 4
When the wedge member 5 is driven to move rightward by the air cylinder 6 from the state shown in FIG. 1, the input member 22 of the clamp lever 3 is
Is locked, and the clamp lever 3 at the clampable position moves rightward and switches to the retracted position in FIG.
When the air cylinder 6 moves the wedge member 41 right and left from the state of FIG. 2, the coil spring 24 moves the clamp lever 3 at the retracted position to the left and switches to the clampable position of FIG.

【0027】前記エアシリンダ6は、筒部材51と1対
の蓋部材52,53を有するシリンダ本体50と、シリ
ンダ本体50の内部に摺動自在に内嵌されたピストン5
4と、ピストン54に固定され蓋部材52を挿通して左
方へ延び先端部にウェッジ部材5が固定されたピストン
ロッド55と、シリンダ本体50の内部においてピスト
ン54で仕切られたエア作動室56,57と、エア作動
室57に内装されピストン54を左方へ付勢する大小2
つのコイルバネ58,59を有する。尚、エア作動室5
6,57はシール部材50a,50b,50cでシール
されている。
The air cylinder 6 includes a cylinder body 50 having a cylinder member 51 and a pair of lid members 52 and 53, and a piston 5 slidably fitted inside the cylinder body 50.
4, a piston rod 55 fixed to the piston 54, extending leftward through the cover member 52, and having the wedge member 5 fixed to the tip thereof; and an air operating chamber 56 partitioned by the piston 54 inside the cylinder body 50. , 57, and large and small 2 which is installed in the air working chamber 57 and urges the piston 54 to the left.
It has two coil springs 58 and 59. In addition, the air working chamber 5
Reference numerals 6, 57 are sealed by seal members 50a, 50b, 50c.

【0028】図示外のエア供給源によりエアポート56
aからエア作動室56に所定圧の加圧エアが供給される
と、コイルバネ58,59の付勢力に抗して、ピストン
54とピストンロッド55が右方へ移動駆動される。ま
た、エア作動室56の加圧エアを開放すると、コイルバ
ネ58,59の付勢力により、ピストン54とピストン
ロッド55が左方へ移動する。更に、クランプレバー3
がクランプ可能位置に位置する状態で、エア供給源によ
りエアポート57aからエア作動室57に加圧エアが供
給されると、ウェッジ部材41が左方へ移動駆動され、
クランプレバー3の入力部22に軸部材4を介して駆動
力が入力される。
The air port 56 is supplied by an air supply source (not shown).
When pressurized air of a predetermined pressure is supplied from a to the air working chamber 56, the piston 54 and the piston rod 55 are driven to move rightward against the urging force of the coil springs 58 and 59. When the pressurized air in the air working chamber 56 is released, the piston 54 and the piston rod 55 move leftward due to the urging force of the coil springs 58 and 59. Furthermore, clamp lever 3
When pressurized air is supplied from the air port 57a to the air working chamber 57 by the air supply source in a state where is located at the clampable position, the wedge member 41 is driven to move leftward,
A driving force is input to the input section 22 of the clamp lever 3 via the shaft member 4.

【0029】尚、ウェッジ部材5の傾斜面41の傾斜角
が約12度であるため、クランプレバー3の入力部22
に入力される駆動力はエアシリンダの出力の約5倍に倍
力され、また、枢支軸20から入力部22までのレバー
長が枢支軸20から出力部21までのレバー長の約3倍
あるため、クランプレバー3の出力部21に作用するク
ランプ力は、前記駆動力の約3倍,エアシリンダ6の出
力の約15倍になる。
Since the inclination angle of the inclined surface 41 of the wedge member 5 is about 12 degrees, the input portion 22 of the clamp lever 3
The driving force input to the motor is boosted to about five times the output of the air cylinder, and the lever length from the pivot shaft 20 to the input unit 22 is about 3 times the lever length from the pivot shaft 20 to the output unit 21. Therefore, the clamping force acting on the output portion 21 of the clamp lever 3 is about three times the driving force and about 15 times the output of the air cylinder 6.

【0030】クランプ装置1の作用・効果について説明
する。エアシリンダ6で左方へ移動駆動されるウェッジ
部材5により、軸部材4を介して入力部22に荷重が入
力されても、1対の枢支孔36は変形しないため、部分
円筒状の座面37の形状が略一定に保持される。それ
故、1対の枢支孔36と1対の枢支軸部30及び座面3
7と部分円筒面32との接触面積を一定の大きさに保持
し、それら接触面に作用する面圧が高くなるのを抑制で
きるため、この駆動力入力構造60においては、軸部材
4の回動性が向上し、枢支孔36や座面37、枢支軸部
30や部分円筒面32が摩耗し難くなる。
The operation and effect of the clamp device 1 will be described. Even if a load is input to the input section 22 via the shaft member 4 by the wedge member 5 driven to the left by the air cylinder 6, the pair of pivot holes 36 are not deformed. The shape of the surface 37 is kept substantially constant. Therefore, a pair of pivot holes 36, a pair of pivot shaft portions 30, and the seat surface 3
In this driving force input structure 60, the rotation of the shaft member 4 can be suppressed since the contact area between the cylindrical member 7 and the partial cylindrical surface 32 can be maintained at a constant size and the surface pressure acting on those contact surfaces can be suppressed from increasing. The mobility is improved, and the pivot hole 36, the seat surface 37, the pivot shaft portion 30, and the partial cylindrical surface 32 are hardly worn.

【0031】約120度円弧の部分円筒状の座面37
に、軸部材4の部分円筒面32を摺動自在に係合したの
で、クランプレバー3の入力部22の下面22a側へ露
出させた切欠き面31を、軸部材3の直径と同幅に形成
しその面積を大きくすることが可能になる。それ故、切
欠面31と傾斜面41とに作用する面圧を低下させるこ
とができ、切欠き面31や傾斜面41も摩耗し難くな
る。
A partially cylindrical bearing surface 37 having an arc of about 120 degrees.
Since the partial cylindrical surface 32 of the shaft member 4 is slidably engaged with the shaft member 3, the cutout surface 31 exposed to the lower surface 22 a side of the input portion 22 of the clamp lever 3 is made to have the same width as the diameter of the shaft member 3. It can be formed and its area can be increased. Therefore, the surface pressure acting on the notch surface 31 and the inclined surface 41 can be reduced, and the notch surface 31 and the inclined surface 41 are hardly worn.

【0032】1対の枢支孔36を、クランプレバー3の
入力部22から下側へ延びる1対の枢支部35に相対向
状に形成し、ウェッジ部材5の凸部40を1対の枢支部
35の間に遊嵌し、その傾斜面41を軸部材4の切欠き
面31に面接触させるように構成したので、面積の大き
な切欠き面31を入力部22の下面22a側へ確実に露
出させ、その切欠き面31に傾斜面41を確実に面接触
させることができる。
A pair of pivot holes 36 are formed on the pair of pivot portions 35 extending downward from the input portion 22 of the clamp lever 3 so as to face each other. Since the slack surface 41 is loosely fitted between the support portions 35 and the inclined surface 41 is brought into surface contact with the notch surface 31 of the shaft member 4, the notch surface 31 having a large area is surely directed to the lower surface 22 a side of the input section 22. The inclined surface 41 can be reliably brought into surface contact with the cutout surface 31 by being exposed.

【0033】クランプレバー4を、その出力部21をク
ランプ本体2の先端外へ突出したクランプ可能位置と、
クランプ解除状態においてその出力部21をクランプ本
体2内へ退入させた退入位置とに切換え可能に構成した
ので、クランプレバー3を退入位置に切換えた状態で、
金型Wのボルスタ9への搬出入作業を非常に簡単に行う
ことができる。
The clamp lever 4 has a clampable position at which its output portion 21 is projected outside the distal end of the clamp body 2;
Since the output unit 21 can be switched to the retreat position in which the output unit 21 retreats into the clamp body 2 in the clamp release state, the state in which the clamp lever 3 is switched to the retreat position is provided.
The work of carrying the mold W into and out of the bolster 9 can be performed very easily.

【0034】尚、前記枢支軸20をクランプ本体2に左
右方向へ移動不能に枢支し、クランプレバー3の位置が
切換わらないように構成してもよい。また、エアシリン
ダ6の代わりに油圧シリンダ等その他種々のアクチュエ
ータを適用してもよい。前記クランプ装置1は、プレス
機械の金型Wを固定するもに限らず、射出成形機械の金
型等の種々クランプ対象体を固定するものとして適用で
きる。
Incidentally, the pivot shaft 20 may be pivotally supported on the clamp body 2 so as not to be movable in the left-right direction so that the position of the clamp lever 3 is not switched. Further, instead of the air cylinder 6, other various actuators such as a hydraulic cylinder may be applied. The clamp device 1 is not limited to fixing a mold W of a press machine, but can be applied as a device for fixing various objects to be clamped such as a mold of an injection molding machine.

【0035】[0035]

【発明の効果】 請求項1のクランプ装置によれば、ア
クチュエータによりウェッジ部材が移動駆動され、ウェ
ッジ部材により軸部材を介して入力部に駆動力が入力さ
れても、1対の枢支孔は変形しないため、部分円筒状の
座面の形状が略一定に保持され、軸部材の1対の枢支軸
部も変形しないため、部分円筒面の形状が略一定に保持
される。それ故、1対の枢支孔と1対の枢支軸部及び座
面と部分円筒面とに作用する面圧を抑制し、軸部材の回
動性が向上し、枢支孔や座面、枢支軸部や部分円筒面が
摩耗し難くなる。更に、座面を180度円弧以下の部分
円筒状に形成し、入力部の下面側へ露出させた面積の大
きな切欠き面を設けることが可能になるため、切欠き面
と傾斜面とに作用する面圧が低下し、切欠き面や傾斜面
も摩耗し難くなる。
According to the first aspect of the present invention, even when the wedge member is moved and driven by the actuator and the driving force is input to the input portion via the shaft member by the wedge member, the pair of pivot holes are formed. Since it is not deformed, the shape of the partial cylindrical seating surface is maintained substantially constant, and the pair of pivot shaft portions of the shaft member is not deformed, so that the shape of the partial cylindrical surface is maintained substantially constant. Therefore, the surface pressure acting on the pair of pivot holes, the pair of pivot shafts, and the seating surface and the partial cylindrical surface is suppressed, the rotation of the shaft member is improved, and the pivot holes and the seating surface are reduced. In addition, the pivot shaft and the partial cylindrical surface are less likely to be worn. Furthermore, since the seating surface is formed in a partial cylindrical shape having a circular arc of 180 degrees or less, and a notch surface having a large area exposed to the lower surface side of the input portion can be provided, the cut surface and the inclined surface are acted on. Surface pressure is reduced, and the notched surface and the inclined surface are hardly worn.

【0036】請求項2のクランプ装置によれば、請求項
1と同様の効果を奏するが、前記1対の枢支孔をクラン
プレバーの入力部の幅方向両端部分からウェッジ部材側
へ延びる1対の枢支部に相対向状に形成し、ウェッジ部
材は1対の枢支部の間に遊嵌し、その傾斜面を軸部材の
切欠き面に面接触させたので、面積の大きな切欠き面を
クランプレバーの入力部の下面側へ確実に露出させ、そ
の切欠き面に傾斜面を確実に面接触させることができ
る。
According to the clamp device of the second aspect, the same effect as that of the first aspect is obtained, except that the pair of pivot holes extend from both ends in the width direction of the input portion of the clamp lever toward the wedge member. The wedge member is loosely fitted between the pair of pivot portions, and the inclined surface thereof is brought into surface contact with the notch surface of the shaft member. The lower surface of the input portion of the clamp lever is reliably exposed, and the inclined surface can be reliably brought into surface contact with the cutout surface.

【0037】請求項3のクランプ装置によれば、請求項
2と同様の効果を奏するが、前記切欠き面を軸部材の直
径と同幅に構成したので、切欠き面と傾斜面とに作用す
る面圧を非常に低下させることができる。
According to the clamp device of the third aspect, the same effect as that of the second aspect is obtained, but since the notch surface has the same width as the diameter of the shaft member, it acts on the notch surface and the inclined surface. Surface pressure can be greatly reduced.

【0038】請求項4のクランプ装置によれば、請求項
1〜3の何れか1項と同様の効果を奏するが、クランプ
可能状態のクランプレバーを、クランプを解除した状態
で退入位置に切換えことで、金型等のクランプ対象体の
所定の据え付け部(プレス機械のボルスタの上面等)へ
の搬出入作業を非常に簡単に行うことができる。
According to the clamp device of the fourth aspect, the same effect as any one of the first to third aspects is obtained, but the clamp lever in the clampable state is switched to the retracted position with the clamp released. This makes it possible to very easily carry in / out the work to be clamped, such as a mold, into a predetermined installation portion (such as the upper surface of a bolster of a press machine).

【0039】請求項5のクランプレバーへの駆動力入力
構造によれば、ウェッジ部材によりアクチュエータから
の駆動力が軸部材を介して入力部に入力されても、ウェ
ッジ部材により軸部材を介して入力部に駆動力が入力さ
れても、1対の枢支孔は変形しないため、部分円筒状の
座面の形状が略一定に保持され、軸部材の1対の枢支軸
部も変形しないため、部分円筒面の形状が略一定に保持
される。それ故、1対の枢支孔と1対の枢支軸部及び座
面と部分円筒面とに作用する面圧を抑制し、軸部材の回
動性が向上し、枢支孔や座面、枢支軸部や部分円筒面が
摩耗し難くなる。更に、座面を180度円弧以下の部分
円筒状に形成し、入力部の下面側へ露出させた面積の大
きな切欠き面を設けることが可能になるため、切欠き面
と傾斜面とに作用する面圧が低下し、切欠き面や傾斜面
も摩耗し難くなる。
According to the driving force input structure to the clamp lever of the fifth aspect, even if the driving force from the actuator is input to the input portion through the shaft member by the wedge member, the driving force is input by the wedge member through the shaft member. Even when a driving force is input to the portion, the pair of pivot holes are not deformed, so that the shape of the partially cylindrical seating surface is maintained substantially constant, and the pair of pivot shaft portions of the shaft member is not deformed. The shape of the partial cylindrical surface is maintained substantially constant. Therefore, the surface pressure acting on the pair of pivot holes, the pair of pivot shafts, and the seating surface and the partial cylindrical surface is suppressed, the rotation of the shaft member is improved, and the pivot holes and the seating surface are reduced. In addition, the pivot shaft and the partial cylindrical surface are less likely to be worn. Furthermore, since the seating surface is formed in a partial cylindrical shape having a circular arc of 180 degrees or less, and a notch surface having a large area exposed to the lower surface side of the input portion can be provided, the cut surface and the inclined surface are acted on. Surface pressure is reduced, and the notched surface and the inclined surface are hardly worn.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施形態に係るクランプ装置の縦断面
図である。
FIG. 1 is a longitudinal sectional view of a clamp device according to an embodiment of the present invention.

【図2】図1のII−II線断面図である。FIG. 2 is a sectional view taken along line II-II of FIG.

【図3】図1のIII −III 線断面図である。FIG. 3 is a sectional view taken along line III-III of FIG.

【図4】クランプ装置(クランプ解除状態)の縦断面図
である。
FIG. 4 is a longitudinal sectional view of a clamp device (in a clamp released state).

【図5】クランプ装置の駆動力入力構造の正面図であ
る。
FIG. 5 is a front view of a driving force input structure of the clamp device.

【図6】駆動力入力構造の斜視図である。FIG. 6 is a perspective view of a driving force input structure.

【図7】図5のVII −VII 線断面図である。FIG. 7 is a sectional view taken along line VII-VII of FIG. 5;

【図8】従来技術に係る駆動力入力構造の斜視図であ
る。
FIG. 8 is a perspective view of a driving force input structure according to the related art.

【図9】従来技術に係る駆動力入力構造の縦断面図であ
る。
FIG. 9 is a longitudinal sectional view of a driving force input structure according to the related art.

【符号の説明】[Explanation of symbols]

1 クランプ装置 2 クランプ本体 3 クランプレバー 4 軸部材 5 ウェッジ部材 6 エアシリンダ 10a,11a 長円孔(枢支孔) 20 枢支軸 21 出力部 22 入力部 30 枢支部 31 切欠き面 32 部分円筒面 36 枢支孔 37 座面 41 傾斜面 60 駆動力入力構造 DESCRIPTION OF SYMBOLS 1 Clamp device 2 Clamp main body 3 Clamp lever 4 Shaft member 5 Wedge member 6 Air cylinder 10a, 11a Oval hole (pivot hole) 20 Pilot shaft 21 Output part 22 Input part 30 Pilot support part 31 Notch surface 32 Partial cylindrical surface 36 pivot hole 37 seat surface 41 inclined surface 60 driving force input structure

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 クランプ本体と、枢支軸を介してクラン
プ本体に枢支され先端部に出力部を有するとともに基端
部に入力部を有するクランプレバーと、クランプレバー
の入力部に形成された部分円筒状の座面に回動自在に係
合する部分円筒面と入力部の下面側へ露出した切欠き面
を有する軸部材と、軸部材の切欠き面に面接触する傾斜
面を有しアクチュエータにより移動駆動されるウェッジ
部材とを備えたクランプ装置において、 前記クランプレバーの入力部の幅方向両端部分には、前
記座面に連なる1対の枢支孔が形成され、 前記軸部材の両端部分には、前記1対の枢支孔に夫々枢
支される枢支軸部が形成され、これら1対の枢支軸部の
間において軸部材に前記切欠き面が形成されたことを特
徴とするクランプ装置。
1. A clamp body, a clamp lever pivotally supported by the clamp body via a pivot shaft and having an output portion at a distal end and an input portion at a base end, and an input portion of the clamp lever. A shaft member having a partial cylindrical surface rotatably engaged with the partial cylindrical seating surface and a cutout surface exposed to the lower surface side of the input unit; and an inclined surface which comes into surface contact with the cutout surface of the shaft member. A wedge member that is moved and driven by an actuator; a pair of pivot holes connected to the seating surface are formed at both end portions in the width direction of the input portion of the clamp lever; In the portion, a pivot shaft portion pivotally supported by the pair of pivot holes is formed, and the cutout surface is formed in the shaft member between the pair of pivot shaft portions. And clamping device.
【請求項2】 前記1対の枢支孔は、クランプレバーの
入力部の幅方向両端部分からウェッジ部材側へ延びる1
対の枢支部に相対向状に形成され、ウェッジ部材は1対
の枢支部の間に遊嵌し、その傾斜面が軸部材の切欠き面
に面接触することを特徴とする請求項1に記載のクラン
プ装置。
2. The pair of pivot holes extend from both ends in the width direction of the input portion of the clamp lever toward the wedge member.
The wedge member is loosely fitted between the pair of pivot portions, and the inclined surface thereof is in surface contact with the notch surface of the shaft member. The clamping device as described.
【請求項3】 前記切欠き面は、軸部材の直径と同幅で
あることを特徴とする請求項2に記載のクランプ装置。
3. The clamping device according to claim 2, wherein the notched surface has the same width as the diameter of the shaft member.
【請求項4】 前記枢支軸を枢支するクランプ本体の1
対の枢支孔は、ウェッジ部材の移動方向に細長い長円孔
に形成され、前記クランプレバーは、その出力部をクラ
ンプ本体の先端外へ突出したクランプ可能位置と、クラ
ンプ解除状態においてその出力部をクランプ本体内へ退
入させた退入位置とに切換え可能に構成されたことを特
徴とする請求項1〜3の何れか1項に記載のクランプ装
置。
4. A clamp body for pivotally supporting said pivot shaft.
The pair of pivot holes are formed as elongated holes that are elongated in the moving direction of the wedge member, and the clamp lever has a clampable position where its output portion projects outside the distal end of the clamp body, and the output portion when the clamp is released. The clamp device according to any one of claims 1 to 3, wherein the clamp device is configured to be switchable to a retracted position where the clamp is retracted into the clamp body.
【請求項5】 クランプ装置のクランプレバーの入力部
に形成された部分円筒状の座面と、この座面に回動自在
に係合する部分円筒面と入力部の外面外へ露出した切欠
き面を有する軸部材と、この軸部材の切欠き面に面接触
する傾斜面を有しアクチュエータからの駆動力を軸部材
を介して入力部に入力するウェッジ部材とを備えたクラ
ンプレバーへの駆動力入力構造において、 前記入力部の幅方向両端部分には前記座面に連なる1対
の枢支孔が形成され、前記軸部材の両端部分には前記1
対の枢支孔に夫々枢支される枢支軸部が形成され、これ
ら1対の枢支軸部の間において軸部材に前記切欠き面が
形成されたことを特徴とするクランプレバーへの駆動力
入力構造。
5. A partial cylindrical seating surface formed at an input portion of a clamp lever of a clamp device, a partial cylindrical surface rotatably engaged with the seating surface, and a notch exposed outside the outer surface of the input portion. Driving to a clamp lever including a shaft member having a surface, and a wedge member having an inclined surface that is in surface contact with a notch surface of the shaft member and inputting a driving force from an actuator to an input unit via the shaft member. In the force input structure, a pair of pivot holes connected to the seat surface are formed at both end portions in the width direction of the input portion, and the pair of pivot holes are formed at both end portions of the shaft member.
A pivot shaft is formed in the pair of pivot holes, and the cutout surface is formed in the shaft member between the pair of pivot shafts. Driving force input structure.
JP13931097A 1997-05-13 1997-05-13 Driving force input structure to clamp device and clamp lever Expired - Fee Related JP4041554B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13931097A JP4041554B2 (en) 1997-05-13 1997-05-13 Driving force input structure to clamp device and clamp lever

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13931097A JP4041554B2 (en) 1997-05-13 1997-05-13 Driving force input structure to clamp device and clamp lever

Publications (2)

Publication Number Publication Date
JPH10311308A true JPH10311308A (en) 1998-11-24
JP4041554B2 JP4041554B2 (en) 2008-01-30

Family

ID=15242331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13931097A Expired - Fee Related JP4041554B2 (en) 1997-05-13 1997-05-13 Driving force input structure to clamp device and clamp lever

Country Status (1)

Country Link
JP (1) JP4041554B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010179429A (en) * 2009-02-06 2010-08-19 Howa Mach Ltd Clamp cylinder
CN112613113A (en) * 2020-11-03 2021-04-06 东风汽车集团有限公司 Method for determining rotary shaft of rotary wedge of stamping die

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010179429A (en) * 2009-02-06 2010-08-19 Howa Mach Ltd Clamp cylinder
CN112613113A (en) * 2020-11-03 2021-04-06 东风汽车集团有限公司 Method for determining rotary shaft of rotary wedge of stamping die

Also Published As

Publication number Publication date
JP4041554B2 (en) 2008-01-30

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