JPH0117380Y2 - - Google Patents
Info
- Publication number
- JPH0117380Y2 JPH0117380Y2 JP1982102749U JP10274982U JPH0117380Y2 JP H0117380 Y2 JPH0117380 Y2 JP H0117380Y2 JP 1982102749 U JP1982102749 U JP 1982102749U JP 10274982 U JP10274982 U JP 10274982U JP H0117380 Y2 JPH0117380 Y2 JP H0117380Y2
- Authority
- JP
- Japan
- Prior art keywords
- wedge member
- driving force
- driven
- wedge
- groove
- 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
Links
- 238000003825 pressing Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 13
- 210000000078 claw Anatomy 0.000 description 5
- 230000007423 decrease Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
この考案はプレス機械あるいはプラスチツク成
形機などにおいて金型を所定の取付位置へ締付け
固定するようなクランプ装置の改良に関し、特に
そのレバー状の締付金具がくさび部材の進行によ
るくさび作用によつて駆動される構成のものにお
いてくさび部材に接する駆動力伝達部の改良に関
する。[Detailed description of the invention] This invention relates to an improvement of a clamping device that tightens and fixes a mold in a predetermined mounting position in a press machine or a plastic molding machine, etc. In particular, the lever-shaped clamping fitting is used to prevent the movement of a wedge member. The present invention relates to an improvement in a driving force transmitting portion that contacts a wedge member in a device configured to be driven by a wedge action.
従来の一般的なクランプ装置において、締付金
具を流体圧シリンダによつて駆動する構成のもの
は供給流体圧が何らかの原因で低下したときに、
締付力が低下しないようにするために、流体圧回
路に逆止弁を使用するほかに、締付金具をくさび
部材で駆動しくさび部材の緩み止め作用を利用す
ることが行われている。そのくさび作用を利用す
る構成のものにおいて、比較的単純なものにしよ
うとすると、レバー状の締付金具の被駆動部を直
接くさび部材の斜面で駆動することになる。この
ような構成によつても緩み止め機能は得られる
が、繰返し使用によつてくさび部材の斜面が局部
的に摩耗して締付動作の円滑性が損われるように
なり、場合によつては所望の締付力が得られなく
なりあるいはくさび部材が後退不能になる。これ
は締付金具のレバー比があまり変化しないように
被駆動部を凸面状に形成してあるのが普通で、く
さび部材の斜面に対して線接触あるいは点接触に
近い状態になるからである。もちろんくさび部材
の斜面に対して被駆動部が常に面接触することが
望ましいのであるが、締付金具が支点を中心に回
動するからこれはできない。 In conventional general clamping devices, those in which the tightening fittings are driven by a fluid pressure cylinder, when the supply fluid pressure decreases for some reason,
In order to prevent the tightening force from decreasing, in addition to using a check valve in the fluid pressure circuit, the tightening fitting is driven by a wedge member and the locking action of the wedge member is utilized. In a structure that utilizes the wedge effect, if a relatively simple structure is desired, the driven portion of the lever-shaped fastening fitting is directly driven by the slope of the wedge member. Although such a configuration can provide a locking function, repeated use may cause local wear of the slope of the wedge member, impairing the smoothness of the tightening operation, and in some cases. The desired tightening force cannot be obtained or the wedge member cannot be retracted. This is because the driven part is usually formed into a convex shape so that the lever ratio of the tightening fitting does not change much, and it is in a state close to line contact or point contact with the slope of the wedge member. . Of course, it is desirable for the driven portion to always be in surface contact with the slope of the wedge member, but this is not possible because the fastening fitting rotates around the fulcrum.
くさびを用いるクランプ装置としては、実願昭
52−179647号に記載のものもあるが、てこ状のク
ランプ用押え爪の一端を押上げる押上ピンが案内
孔で上下方向に案内されるようになつており、そ
の押上ピンの下端がくさびの斜面に当接し、上端
の球状部が押え爪に点接触している構成である。
この構成によれば、押え爪は支点を中心に円弧に
沿つて移動するのに対し、押上ピンは案内孔に沿
つて直線移動するから、互いに接触する双方の動
きに食い違いがある。この動きの食い違いは、押
え爪と押上ピンとの点接触している位置の位置ず
れを生じ、これによつて接触部の極端な摩耗が短
期間に生じて押え爪の押え寸法が短くなり、さら
に押上ピンの接触位置のピン中心に対する偏心量
の増大などを生じるのみならず、押上ピンがこぜ
作用を受けることから、押上ピンとその案内孔と
の間に偏摩耗を生じ、この偏摩耗は押上ピンの押
上げ抵抗となり、従つてクランプ出力の低下が起
こる原因ともなり、さらに押上ピンとくさびとの
面接触が線又は点接触になり、前記したくさびで
直接締付金具を駆動する単純なクランプ装置より
もいつそう寿命が短いという問題を含んでいる。 As a clamping device using a wedge, Jitsuganaki
There is also a device described in No. 52-179647, in which a push-up pin that pushes up one end of a lever-like clamping claw is guided vertically in a guide hole, and the lower end of the push-up pin is shaped like a wedge. It abuts on the slope, and the spherical part at the upper end is in point contact with the presser claw.
According to this configuration, the presser claw moves along an arc around the fulcrum, whereas the push-up pin moves linearly along the guide hole, so there is a discrepancy in the movements of the two when they come into contact with each other. This discrepancy in movement causes a misalignment of the point contact position between the presser claw and the push-up pin, which causes extreme wear of the contact area in a short period of time, shortens the holding dimension of the presser claw, and further Not only does this cause an increase in eccentricity of the contact position of the push-up pin with respect to the pin center, but the push-up pin is subjected to a crushing action, which causes uneven wear between the push-up pin and its guide hole, and this uneven wear causes the push-up pin to become eccentric. This causes push-up resistance of the pin, and therefore causes a decrease in clamp output.Furthermore, the surface contact between the push-up pin and the wedge becomes a line or point contact, and the above-mentioned wedge directly drives the clamping device. This includes the problem of how short lifespans are.
この考案は特殊な形状の駆動力伝達部材を締付
金具の被駆動部とくさび部材の斜面との間に適切
に介在させることによつて比較的単純な構成のま
までくさび部材の局部的な摩耗を防止して長期間
所定の締付力を維持できるクランプ装置の駆動力
伝達部を提供しようとするものである。 This invention maintains a relatively simple structure by appropriately interposing a specially shaped driving force transmission member between the driven part of the fastening fitting and the slope of the wedge member, and thereby transmits localized power to the wedge member. It is an object of the present invention to provide a driving force transmission section for a clamp device that can prevent wear and maintain a predetermined tightening force for a long period of time.
以下この考案を図示の実施例に基いて説明す
る。第１図乃至第３図は第１の実施例を示し、図
中、１は締付金具、２はくさび部材、３は駆動力
伝達部材である。 This invention will be explained below based on the illustrated embodiments. 1 to 3 show a first embodiment, and in the figures, 1 is a fastening fitting, 2 is a wedge member, and 3 is a driving force transmitting member.
締付金具１は、第２図に見られるように、レバ
ー状のものであり、中央の支点部に支持軸１０を
挿通され、本体１１に形成された支持部１２に回
動可能に枢支され、図における右側下部に被駆動
部１３、左側下部に押圧部１４を有している。被
駆動部１３はくさび部材２の側に周面の一部が開
口した円孔状の溝１５に形成されている。溝１５
の幅は内部よりも開口側で狭くなつている。押圧
部１４は型の固定用フランジ部１６を押圧するの
に都合が良いように凸状に形成されている。 As seen in FIG. 2, the fastening fitting 1 is lever-shaped, has a support shaft 10 inserted through its central fulcrum, and is rotatably supported by a support 12 formed on a main body 11. It has a driven part 13 at the lower right side and a pressing part 14 at the lower left side in the figure. The driven portion 13 is formed in a circular groove 15 with a part of its circumferential surface open on the side of the wedge member 2 . Groove 15
The width is narrower on the opening side than on the inside. The pressing portion 14 is formed in a convex shape so as to be convenient for pressing the fixing flange portion 16 of the mold.
くさび部材２は、第２図に見られるように、上
面が斜面１７に形成され、左方へ進行することに
よつて被駆動部１３を後述する駆動力伝達部材３
を介し上方へ駆動するものである。１８，１９は
くさび部材案内面であり、本体１１に形成されて
いる。くさび部材２は本体１１に結合固定された
油圧シリンダ２０のピストンロツド２１に結合さ
れている。図中、２２はピストン、２３，２４は
圧油給排口である。 As seen in FIG. 2, the wedge member 2 has an inclined surface 17 formed on its upper surface, and moves to the left to connect the driven portion 13 to a driving force transmitting member 3, which will be described later.
It is driven upwards through. 18 and 19 are wedge member guide surfaces formed on the main body 11. The wedge member 2 is connected to a piston rod 21 of a hydraulic cylinder 20 which is connected and fixed to the main body 11. In the figure, 22 is a piston, and 23 and 24 are pressure oil supply and discharge ports.
駆動力伝達部材３は、前記溝１５に嵌入する短
円柱形のピンの周面の一部が平面となるように切
欠き２５を設けたものである。この駆動力伝達部
材３は溝１５内に収容された状態で回転自在であ
り、切欠き２５が溝１５の開口より外側へ突出し
ており、くさび部材２の斜面１７に面接触してい
る。また、駆動力伝達部材３の両端は溝１５の両
端に位置していて、溝１５の両端が本体１１のく
さび部材案内面１９で閉塞された状態であり、締
付金具１の支持軸１０を中心とする回動に支障は
なく、駆動力伝達部材３と共に回動する。 The driving force transmitting member 3 has a short cylindrical pin that fits into the groove 15, and a notch 25 is provided so that a part of the circumferential surface of the pin is flat. The driving force transmitting member 3 is rotatable while being housed in the groove 15, and the notch 25 projects outward from the opening of the groove 15 and is in surface contact with the slope 17 of the wedge member 2. Further, both ends of the driving force transmission member 3 are located at both ends of the groove 15, and both ends of the groove 15 are closed by the wedge member guide surface 19 of the main body 11, so that the support shaft 10 of the fastening fitting 1 is closed. There is no problem with rotation about the center, and it rotates together with the driving force transmission member 3.
なお、図中、２６はボール、２７は復帰用ば
ね、２８は締付検出用リミツトスイツチ、２９は
電線導出口、３０はボルスタ等に対して本体１１
を固定するためのねじ挿通孔、３１は軸１０の止
めねじである。 In the figure, 26 is a ball, 27 is a return spring, 28 is a limit switch for detecting tightening, 29 is an electric wire outlet, and 30 is a connection between the main body 11 and a bolster, etc.
31 is a set screw for the shaft 10.
このように構成されたクランプ装置は、例えば
プレス機械のボルスタ表面３２の所定位置にねじ
止めして使用される。第２図に実線で示す状態か
らシリンダ２０内に圧油を供給してピストン２２
を前進させると、くさび部材２が前進して駆動力
伝達部材３を介して締付金具３の被駆動部１３側
を押し上げる。これによつて押圧部１４側が下降
して金型の固定用フランジ部１６を押圧する。こ
の締付金具３の支持軸１０を中心とする回動の過
程で駆動力伝達部材３は溝１５内でくさび部材２
の斜面１７に面接触した状態を常に持続するよう
に自転する。この締付状態において、何らかの原
因でシリンダ２０に対する供給油圧が低下したと
しても、くさび部材のくさび作用によつて締付状
態はそのままに維持される。ピストン２２が後退
せしめられると、くさび部材２も後退するから、
くさび部材２による駆動力が除去され、復帰用ば
ね２７の作用で締付金具１も元の図示の状態に戻
る。 The clamp device configured in this manner is used by being screwed into a predetermined position on the bolster surface 32 of a press machine, for example. Pressure oil is supplied into the cylinder 20 from the state shown by the solid line in FIG.
When the wedge member 2 is moved forward, the wedge member 2 moves forward and pushes up the driven portion 13 side of the fastening fitting 3 via the driving force transmission member 3. As a result, the pressing part 14 side descends and presses the fixing flange part 16 of the mold. In the process of rotation of the tightening fitting 3 about the support shaft 10, the driving force transmission member 3 is inserted into the wedge member 2 within the groove 15.
It rotates so that it always remains in surface contact with the slope 17 of. In this tightened state, even if the oil pressure supplied to the cylinder 20 decreases for some reason, the tightened state is maintained as is due to the wedge action of the wedge member. When the piston 22 is moved back, the wedge member 2 is also moved back.
The driving force by the wedge member 2 is removed, and the tightening fitting 1 also returns to its original state as shown in the figure by the action of the return spring 27.
第４図乃至第６図は第２の実施例であり、第１
の実施例と異る点は、金型装着用のローラ４０及
びその支持部４１を増設してある点であり、他の
部分は同じである。第１の実施例と同等部分は同
一図面符号で示してある。ローラ４０は本体１１
に増設された支持部４１に回転自在に軸支された
ものである。 4 to 6 show the second embodiment, and the first embodiment
This embodiment differs from the embodiment in that a mold mounting roller 40 and its supporting portion 41 are added, and other parts are the same. Parts equivalent to those in the first embodiment are designated by the same drawing symbols. The roller 40 is the main body 11
It is rotatably supported by a support section 41 added to the main body.
このクランプ装置は、射出成形機におけるよう
な型取付面が垂直面である場合にローラ部が上方
となるように取付けて使用する。ローラ４０は金
型の交換の際に金型の引出しあるいは押込みのた
めに利用する。締付作用に関しては第１の実施例
と同じであるから説明を省略する。 When the mold mounting surface is a vertical surface such as in an injection molding machine, this clamp device is used by being mounted so that the roller portion faces upward. The rollers 40 are used to pull out or push in the mold when replacing the mold. Since the tightening action is the same as in the first embodiment, a description thereof will be omitted.
第１及び第２の実施例から理解されるように、
切欠き円柱状の駆動力伝達部材３を設けたことに
より、くさび部材２の斜面１７は常に切欠き２５
の面に面接触した状態で駆動力が伝達されるか
ら、局部的に損傷し難い。また、締付金具１の溝
１５に形成された被駆動部１３も駆動力伝達部材
３の円周面と面接触する状態であるから、局部的
な摩耗はない。従つて長期間の使用においても常
に円滑な締付動作と所望の押圧力が得られる。 As understood from the first and second embodiments,
By providing the notched cylindrical driving force transmission member 3, the slope 17 of the wedge member 2 always forms the notch 25.
Since the driving force is transmitted while in surface contact with the surface, local damage is less likely to occur. Further, since the driven portion 13 formed in the groove 15 of the fastening fitting 1 is also in surface contact with the circumferential surface of the driving force transmission member 3, there is no local wear. Therefore, even during long-term use, smooth tightening operation and desired pressing force can always be obtained.
以上のようにこの考案によれば、切欠き円柱状
の駆動力伝達部材を締付金具の被駆動部とくさび
部材の斜面との間に介在させ、その斜面と切欠き
平面とが常に面接触すると共に被駆動部と円周面
部分とも常に面接触するように締付金具の切欠き
円状断面の溝に駆動力伝達部材を保持させた構成
により、くさび部材の斜面の損傷が防止され、締
付金具の被駆動部及びこれに接する駆動力伝達部
材の早期摩耗が防止され、適切に単純化されてい
て保守及び製作上有利であり、長期間の使用にお
いて円滑な締付動作並びに所定の締付力を確保で
きるクランプ装置の駆動力伝達部を提供できる。 As described above, according to this invention, the notched cylindrical driving force transmission member is interposed between the driven part of the fastening fitting and the slope of the wedge member, and the slope and the notch plane are always in surface contact. At the same time, damage to the slope of the wedge member is prevented by the configuration in which the driving force transmission member is held in the groove of the cutout circular cross section of the tightening fitting so that it is always in surface contact with the driven part and the circumferential surface part. It prevents early wear of the driven part of the fastening fitting and the driving force transmission member in contact with it, is suitably simplified, is advantageous in maintenance and manufacturing, and ensures smooth tightening operation and the specified performance during long-term use. It is possible to provide a driving force transmission section for a clamp device that can secure tightening force.
第１図はこの考案の第１の実施例の平面図、第
２図は同実施例の部分断面正面図、第３図は同実
施例の左側面図、第４図は第２の実施例の平面
図、第５図は同実施例の部分断面正面図、第６図
は同実施例の左側面図である。
１……締付金具、２……くさび部材、３……駆
動力伝達部材、１０……支持軸（支点）、１１…
…クランプ装置の本体、１２……支持部、１３…
…被駆動部、１４……押圧部、１５……円孔状
溝、１７……斜面、１８，１９……案内面、２０
……油圧シリンダ、２５……切欠き。
Fig. 1 is a plan view of the first embodiment of this invention, Fig. 2 is a partially sectional front view of the same embodiment, Fig. 3 is a left side view of the same embodiment, and Fig. 4 is a second embodiment. FIG. 5 is a partially sectional front view of the same embodiment, and FIG. 6 is a left side view of the same embodiment. DESCRIPTION OF SYMBOLS 1... Tightening metal fitting, 2... Wedge member, 3... Driving force transmission member, 10... Support shaft (fulcrum), 11...
...Main body of the clamp device, 12... Support part, 13...
... Driven part, 14 ... Pressing part, 15 ... Circular groove, 17 ... Slope, 18, 19 ... Guide surface, 20
... Hydraulic cylinder, 25 ... Notch.
Claims (1)
具備するレバー状の締付金具と、流体圧シリンダ
によつて進退駆動されその進行時に上記締付金具
の被駆動部をくさび作用により駆動して上記押圧
部に押圧力を生ぜしめるくさび部材とを有するク
ランプ装置において、周面の一部が平面となるよ
うな切欠きを有する切欠き円柱状の駆動力伝達部
材を、上記締付金具の被駆動部とくさび部材との
間に上記切欠きの平面がくさび部材の斜面に面接
触するようにかつ軸線がくさび部材の斜面を横切
る方向に伸延するように介在させ、上記被駆動部
を上記駆動力伝達部材の円周面部分に面接触する
切欠き円状断面の溝に形成し、その溝内に上記駆
動力伝達部材を回動自在に収容しその切欠きの平
面部を溝の外側へ突出させてあることを特徴とす
るクランプ装置の駆動力伝達部。 A lever-shaped tightening fitting having a fulcrum part supported by the main body and having a driven part and a pressing part, and a fluid pressure cylinder that drives the lever-shaped tightening fitting forward and backward, and as it advances, drives the driven part of the tightening fitting by a wedge action. In the clamping device, the wedge member is provided with a wedge member that generates a pressing force on the pressing part. The driven portion is interposed between the driven portion and the wedge member such that the plane of the notch is in surface contact with the slope of the wedge member and the axis extends in a direction that crosses the slope of the wedge member, and the driven portion is connected to the wedge member. A notch is formed in a groove with a circular cross section that makes surface contact with the circumferential surface of the driving force transmitting member, and the driving force transmitting member is rotatably accommodated in the groove, and the flat part of the notch is placed outside the groove. A driving force transmitting portion of a clamp device, characterized in that the driving force transmitting portion of the clamp device is protruded into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10274982U JPS5910930U (en) | 1982-07-07 | 1982-07-07 | Driving force transmission part of clamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10274982U JPS5910930U (en) | 1982-07-07 | 1982-07-07 | Driving force transmission part of clamp device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5910930U JPS5910930U (en) | 1984-01-24 |
| JPH0117380Y2 true JPH0117380Y2 (en) | 1989-05-19 |
Family
ID=30242038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10274982U Granted JPS5910930U (en) | 1982-07-07 | 1982-07-07 | Driving force transmission part of clamp device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5910930U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4538289B2 (en) * | 2004-09-29 | 2010-09-08 | 富士機工株式会社 | Car seat recliner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59200Y2 (en) * | 1977-12-27 | 1984-01-06 | 東芝機械株式会社 | Mold automatic clamping device |
| JPS56165516U (en) * | 1980-05-08 | 1981-12-08 |
-
1982
- 1982-07-07 JP JP10274982U patent/JPS5910930U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5910930U (en) | 1984-01-24 |
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