EP0894573A2 - Bauteilspanner - Google Patents
Bauteilspanner Download PDFInfo
- Publication number
- EP0894573A2 EP0894573A2 EP98106229A EP98106229A EP0894573A2 EP 0894573 A2 EP0894573 A2 EP 0894573A2 EP 98106229 A EP98106229 A EP 98106229A EP 98106229 A EP98106229 A EP 98106229A EP 0894573 A2 EP0894573 A2 EP 0894573A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- tension rod
- tension
- coupling joint
- tab
- 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
Links
- 230000008878 coupling Effects 0.000 claims abstract description 31
- 238000010168 coupling process Methods 0.000 claims abstract description 31
- 238000005859 coupling reaction Methods 0.000 claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/12—Arrangements for positively actuating jaws using toggle links
- B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
Definitions
- Component clamps are used in various technical Areas used for the current fixation of workpieces. You have to work quickly and reliably as well Maintenance-free multiple load changes over long periods of use guarantee.
- the guide slot may also be curved in an arc shape be.
- the tab is designed so that the distance of the Coupling joints changeable with the piston rod and the lever is.
- the resilient tab means that the clamping forces are infinite be avoided. With this, however, only that Tension limited, but no self-locking achieved become. In addition, the fatigue strength and durability should be the tab can be problematic. Your manufacturing is also expensive. In addition, the force limit dependent on the spring constant and the spring travel.
- the invention is based on the prior art
- the task is to create a component clamp that with a simple design using the toggle principle allows a limitation of the increase in force and it still ensures that in the clamping position too if the clamping energy fails, the clamping position Self-locking is guaranteed.
- the essence of the invention is the fact that the Positive guidance for at least one end of the tension rod arranged roller with one to the coupling joint concave between lever and tab in its dead center End section is provided.
- This concave end section begins just before the level that passes through the coupling joint extends between the lever and the tab if this coupling joint in the through the clamping position of the clamping arm is certain dead center, and ends behind this level.
- the particular advantage of the invention is therefore the assurance the force limitation in a simple way the concave end section. This will make a flawless Self-locking after passing dead center guaranteed.
- the component clamp is also very compact Construction, because of the path translation according to the invention only a little between the lever and the tab Stroke of the tension rod is required.
- the invention also allows the pivoting angle of the Between the standby position and the To be able to set up the clamping position as desired. Only through the use of stroke-limiting pieces or through the exchange of the tension rod can open angles of in particular 45 °, 60 °, 90 ° and 115 ° up to a maximum Opening angle of 135 ° can be provided. Furthermore can easily integrate the component clamp Position query can be assigned.
- the housing for storing the tension arm, lever, bracket and Tension rod is also designed so that one with the Low-tension abutment to fix the position of the workpieces to be machined releasably assigned to the housing can be.
- a particularly useful embodiment of the invention consists in the features of claim 2. Then extends the concave end portion of the positive guidance over a length that the plane through the coupling joint overlapping between the lever and the tab at the dead center Swivel angle of the bracket from 6 ° to 10 °, preferably but 8 °. This is 4 ° above the level ensures the self-locking of the tab.
- the concave end portion is preferred according to claim 3 curved in a circular arc. It has a radius, which plus the length of the tab between the coupling joints corresponds to the radius of the roller.
- the positive guidance, the lever, the bracket and the roller in one connectable with the guide for the tension rod two-piece Housing arranged. That way these parts against external influences even in a rough Operation well protected.
- the two-part design of the housing allows easy manufacture and trouble-free Assembly.
- the guide is especially a cylinder formed when according to a preferred embodiment the tension rod as with a pressurized air or also with a hydraulic load Piston connected piston rod formed is. The necessary deflection of the tension rod at one Contact of the roller with the concave end portion caught by the seals on the cylinder for the tension rod.
- Swivel shaft in the end sections carrying the articulated arms is polygonal.
- the swivel shaft in particular be square.
- the articulated arms are then with corresponding recesses and / or Provide clamps through which the articulated arms work properly can be fixed on the swivel shaft.
- the pivot shaft and the lever are preferably a component, which are manufactured by turning and milling operations can.
- the component clamp 1 comprises a cylinder 2 to which compressed air can be applied to guide a piston, not shown in detail with piston rod, one connected to cylinder 2 two-part housing 3 with an integrated not illustrated toggle lever system for transmission the force exerted by the compressed air on the piston a pivotable tension arm 4.
- the tension arm 4 has a U-shape Configuration two articulated arms 5, which over Clamping pieces 6 on one led out of the housing 3 Ends square-shaped swivel shaft 7 releasable are attached.
- the clamping position ST runs the longitudinal axis 8 of the clamping arm 4 perpendicular to the longitudinal axis 9 of the cylinder 2.
- the compressed air connection of the annulus 2a is with 10 and that of the piston chamber 2b is designated 10a.
- the tension arm 4 inside the housing 3 a rigid lever 11 connected in 90 ° offset.
- the lever 11 forms one integral part of the swivel shaft 7.
- the length L of the straight length section 22 corresponds the size of the pivot angle ⁇ of the tension arm 4 between the standby position BP and the clamping position ST. He runs in a straight line parallel to the longitudinal axis 9 of the cylinder 2.
- the end section 23 is to the coupling joint 12 between the lever 11 and the tab 13 in its dead center (Clamping position ST of 4) concavely curved. It starts with 24 in front of the through the dead center coupling joint 12 extending to the longitudinal axis 9 of the cylinder 2 vertically extending plane E-E and ends at 25 behind this level E-E. Its arc length corresponds to L3 the angle 2 ⁇ between points 24 and 25.
- the angle ⁇ between the plane E-E and points 24, 25 of the concave end section 23 is 4 ° in each case.
- the operation of the component clamp 1 is as follows explained in more detail with reference to FIGS. 3 to 11.
- the standby position is BP of the tension arm 4 shown.
- the opening angle is ⁇ 135 °.
- the component clamp 1 is fully open. It is 10 compressed air in the annulus via the compressed air connection 2a of the cylinder 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
Abstract
Description
- Figur 1
- einen Bauteilspanner in schematischer Seitenansicht;
- Figur 2
- den Bauteilspanner der Figur 1 in der Draufsicht;
- Figuren 3 bis 6
- in vergrößerter Darstellung einen vertikalen Längsschnitt durch die Figur 2 entlang der Linie A-A entsprechend dem Ausschnitt B der Figur 1 in vier verschiedenen Betriebsstellungen;
- Figuren 7 bis 10
- die Darstellungen der Figuren 3 bis 6 im Schema und
- Figur 11
- in nochmals vergrößertem Maßstab die Darstellung der Figur 9.
- 1 -
- Bauteilspanner
- 2 -
- Zylinder
- 2a -
- Ringraum v. 2
- 2b -
- Kolbenraum v. 2
- 3 -
- Gehäuse
- 4 -
- Spannarm
- 5 -
- Gelenkarme v. 4
- 6 -
- Klemmstücke
- 7 -
- Schwenkwelle
- 8 -
- Längsachse v. 4
- 9 -
- Längsachse v. 2
- 10 -
- Druckluftanschluß
- 10a -
- Druckluftanschluß
- 11 -
- Hebel
- 12 -
- Koppelgelenk f. 11 u. 13
- 13 -
- Lasche
- 14 -
- Koppelgelenk zw. 13 u. 15
- 15 -
- Ende v. 16
- 16 -
- Spannstange
- 17 -
- Laufrolle
- 18 -
- Zwangsführung
- 19 -
- Ausnehmung in 20, 21
- 20 -
- Hälfte v. 3
- 21 -
- Hälfte v. 3
- 22 -
- Längenabschnitt v. 18
- 23 -
- Endabschnitt v. 18
- 24 -
- Beginn v, 23
- 25 -
- Ende v. 23
- 26 -
- Achse v. 7
- 27 -
- Längsachse v. 16
- 28 -
- Kolben in 2
- A -
- Abstand zw. 12 u. 27
- BP -
- Bereitschaftsposition
- E-E-
- Ebene durch 12
- L -
- Länge v. 22
- L1 -
- Länge v. 13
- L2 -
- Länge v. 11
- L3 -
- Bogenlänge v. 23
- R -
- Radius v. 23
- r -
- Radius v. 17
- ST -
- Spannstellung v. 4
- α -
- Schwenkwinkel v. 4
- β -
- Winkel zw. E-E u. 24 bzw. 25
Claims (6)
- Bauteilspanner, der eine durch pneumatische, hydraulische oder elektrische Energie verlagerbare Spannstange (16), einen aus seiner Spannstellung (ST) in eine Bereitschaftsposition (BP) und umgekehrt schwenkbaren Spannarm (4), einen mit dem Spannarm (4) über eine Schwenkwelle (7) drehfest verbundenen starren Hebel (11) und eine sowohl mit dem Hebel (11) als auch mit dem Ende (15) der Spannstange (16) drehbeweglich gekoppelte starre Lasche (13) aufweist, deren Länge (L1) zwischen den Koppelgelenken (12, 14) größer als der Abstand (A) zwischen dem Koppelgelenk (12) der Lasche (13) mit dem Hebel (11) und der Längsachse (27) der Spannstange (16) in der Bereitschaftsposition (BP) bemessen ist, wobei das Koppelgelenk (14) zwischen der Lasche (13) und dem Ende (15) der Spannstange (16) an wenigstens einer Laufrolle (17) abgestützt ist, die an einer Zwangsführung (18) abwälzt, welche einen dem Schwenkwinkel (α) des Spannarms (4) zwischen der Bereitschaftsposition (BP) und der Spannstellung (ST) entsprechenden Längenabschnitt (L) besitzt, der geradlinig parallel zur Längsachse (27) der Spannstange (16) in der Bereitschaftsposition (BP) verläuft, und welche mit einem zum Koppelgelenk (12) zwischen Hebel (11) und Lasche (13) in dessen Totpunkt konkaven Endabschnitt (23) versehen ist, der vor der durch das sich im Totpunkt befindende Koppelgelenk (12) verlaufenden, sich zur Längsachse (27) der Spannstange (16) in der Bereitschaftsposition (BP) senkrecht erstreckenden Ebene (E-E) beginnt und hinter dieser Ebene (E-E) endet.
- Bauteilspanner nach Anspruch 1, dadurch gekennzeichnet, daß sich der konkave Endabschnitt (23) der Zwangsführung (18) über eine Bogenlänge (L3) erstreckt, die einem die Ebene (E-E) übergreifenden Schwenkwinkel (2β) der Lasche (13) von 6° bis 10°, vorzugsweise 8°, entspricht.
- Bauteilspanner nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der konkave Endabschnitt (23) einen Radius (R) aufweist, welcher der Länge (L1) der Lasche (13) zwischen den Koppelgelenken (12, 14) zuzüglich des Radius (r) der Laufrolle (17) entspricht.
- Bauteilspanner nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Zwangsführung (18), der Hebel (11), die Lasche (13) und die Laufrolle (17) in einem mit der Führung (2) für die Spannstange (16) verbindbaren zweiteiligen Gehäuse (3) angeordnet sind.
- Bauteilspanner nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Spannarm (4) mit zwei Gelenkarmen (5) das Gehäuse (3) seitlich umfaßt und über die Gelenkarme (5) mit den aus dem Gehäuse (3) herausgeführten Enden der mit dem Hebel (11) einstückig gestalteten Schwenkwelle (7) drehfest verbunden ist.
- Bauteilspanner nach Anspruch 5, dadurch gekennzeichnet, daß die Schwenkwelle (7) in den die Gelenkarme (5) tragenden Endabschnitten mehrkantig ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19732600A DE19732600C2 (de) | 1997-07-29 | 1997-07-29 | Bauteilspanner |
DE19732600 | 1997-07-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0894573A2 true EP0894573A2 (de) | 1999-02-03 |
EP0894573A3 EP0894573A3 (de) | 1999-04-28 |
EP0894573B1 EP0894573B1 (de) | 2003-04-02 |
Family
ID=7837232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98106229A Expired - Lifetime EP0894573B1 (de) | 1997-07-29 | 1998-04-06 | Bauteilspanner |
Country Status (4)
Country | Link |
---|---|
US (1) | US6206353B1 (de) |
EP (1) | EP0894573B1 (de) |
BR (1) | BR9803715A (de) |
DE (2) | DE19732600C2 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000044531A1 (de) * | 1999-01-27 | 2000-08-03 | Festo Ag & Co. | Kniehebel-spannvorrichtung |
EP1225004A2 (de) * | 2001-01-19 | 2002-07-24 | DE-STA-CO Metallerzeugnisse GmbH | Schwenkvorrichtung |
DE102004007346B3 (de) * | 2003-11-04 | 2005-04-21 | Tünkers Maschinenbau Gmbh | Kniehebelspannvorrichtung - auch Spannwerkzeug wie Punktschweißvorrichtung mit Kniehebelgelenkanordnung, oder Clinchwerkzeug mit Kniehebelgelenkanordnung oder dergleichen -, zur Verwendung im Karosseriebau der Kfz-Industrie |
ITUB20153120A1 (it) * | 2015-08-13 | 2017-02-13 | Pneumax S P A | Unita' di attuazione del tipo a leva articolata a efficienza ottimizzata |
CN110181439A (zh) * | 2019-06-25 | 2019-08-30 | 京东方科技集团股份有限公司 | 用于夹紧卡匣的夹紧器件和卡匣组件 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6199846B1 (en) * | 1998-04-28 | 2001-03-13 | Isi Norgren, Inc. | Electric power operated clamp with spring lock |
ITMI20020683A1 (it) | 2002-04-02 | 2003-10-02 | Luciano Migliori | Dispositivo di pinzatura per saldature laser |
US7815176B2 (en) | 2003-09-11 | 2010-10-19 | Phd, Inc. | Lock mechanism for pin clamp assembly |
US7182326B2 (en) * | 2004-04-02 | 2007-02-27 | Phd, Inc. | Pin clamp |
US7516948B2 (en) * | 2004-04-02 | 2009-04-14 | Phd, Inc. | Pin clamp accessories |
US7448607B2 (en) * | 2004-12-15 | 2008-11-11 | Phd, Inc. | Pin clamp assembly |
US20070267795A1 (en) * | 2006-02-06 | 2007-11-22 | Parag Patwardhan | Pin clamp transfer assembly and method of transferring a workpiece |
WO2008157698A2 (en) | 2007-06-19 | 2008-12-24 | Phd, Inc. | Pin clamp assembly |
WO2009155261A1 (en) * | 2008-06-18 | 2009-12-23 | Phd, Inc. | Strip off pin clamp |
EP2177320A1 (de) * | 2008-10-15 | 2010-04-21 | UNIVER S.p.A. | Irreversible Kniehebelantriebsvorrichtung |
JP5353629B2 (ja) | 2008-11-14 | 2013-11-27 | 信越化学工業株式会社 | 熱硬化性樹脂組成物 |
CN102407422A (zh) * | 2011-12-05 | 2012-04-11 | 安徽省芜湖仪器仪表研究所 | 一种气动夹紧自锁装置及其夹紧方法 |
CN110561472B (zh) * | 2019-10-23 | 2022-09-20 | 烟台宇信科技有限公司 | 一种工件搬运抓手用双自锁定位夹紧机构 |
CN114012629A (zh) * | 2021-11-26 | 2022-02-08 | 昌河飞机工业(集团)有限责任公司 | 一种自动夹紧装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4591138A (en) * | 1983-12-02 | 1986-05-27 | Etudes Techniques-Franche-Comte-Alsace Etfa, Sarl | Jointed pneumatic gripping apparatus |
EP0216710A1 (de) * | 1985-09-24 | 1987-04-01 | Fabrice Goussu | Mehrkopfspannvorrichtung mit einer einzelnen Fernbetätigung |
FR2618713A1 (fr) * | 1987-07-29 | 1989-02-03 | Cecchi Gerard | Dispositif de bridage |
US4921233A (en) * | 1988-05-06 | 1990-05-01 | Genus International | Clamping device for plates or profiled elements placed one against the other |
EP0370914A1 (de) * | 1988-11-25 | 1990-05-30 | POLYMATIC Société Anonyme dite: | Spannkopf mit Spielausgleich |
DE29713944U1 (de) * | 1997-08-05 | 1997-10-02 | Tünkers Maschinenbau GmbH, 40880 Ratingen | Druckmittelbetätigbare Kniehebelspannvorrichtung |
EP0836912A1 (de) * | 1996-10-15 | 1998-04-22 | Robotic | Spannvorrichtung mit einem durch einen Kolben angetriebenen Hebel |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2296494A1 (fr) * | 1974-12-31 | 1976-07-30 | Carel Fouche Languepin | Dispositif de serrage pneumatique |
DE3022376C2 (de) * | 1980-06-14 | 1985-08-01 | De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt | Kniehebelspannvorrichtung zum Festspannen von Werkstücken |
DE3130942A1 (de) * | 1981-08-05 | 1983-04-28 | Tünkers Maschinenbau GmbH, 4030 Ratingen | Druckmittelbetaetigbare kniehebelspannvorrichtung mit elastischem federgelenk und loesbar befestigtem spannarm |
DE3528337A1 (de) * | 1985-08-07 | 1987-02-19 | Eugen Rapp | Spannvorrichtung |
-
1997
- 1997-07-29 DE DE19732600A patent/DE19732600C2/de not_active Expired - Fee Related
-
1998
- 1998-04-06 DE DE59807698T patent/DE59807698D1/de not_active Expired - Fee Related
- 1998-04-06 EP EP98106229A patent/EP0894573B1/de not_active Expired - Lifetime
- 1998-07-28 BR BR9803715-3A patent/BR9803715A/pt not_active Application Discontinuation
- 1998-07-29 US US09/124,425 patent/US6206353B1/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4591138A (en) * | 1983-12-02 | 1986-05-27 | Etudes Techniques-Franche-Comte-Alsace Etfa, Sarl | Jointed pneumatic gripping apparatus |
EP0216710A1 (de) * | 1985-09-24 | 1987-04-01 | Fabrice Goussu | Mehrkopfspannvorrichtung mit einer einzelnen Fernbetätigung |
FR2618713A1 (fr) * | 1987-07-29 | 1989-02-03 | Cecchi Gerard | Dispositif de bridage |
US4921233A (en) * | 1988-05-06 | 1990-05-01 | Genus International | Clamping device for plates or profiled elements placed one against the other |
EP0370914A1 (de) * | 1988-11-25 | 1990-05-30 | POLYMATIC Société Anonyme dite: | Spannkopf mit Spielausgleich |
EP0836912A1 (de) * | 1996-10-15 | 1998-04-22 | Robotic | Spannvorrichtung mit einem durch einen Kolben angetriebenen Hebel |
DE29713944U1 (de) * | 1997-08-05 | 1997-10-02 | Tünkers Maschinenbau GmbH, 40880 Ratingen | Druckmittelbetätigbare Kniehebelspannvorrichtung |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000044531A1 (de) * | 1999-01-27 | 2000-08-03 | Festo Ag & Co. | Kniehebel-spannvorrichtung |
US6279887B1 (en) | 1999-01-27 | 2001-08-28 | Festo Ag & Co. | Articulated lever tensioning device |
EP1225004A2 (de) * | 2001-01-19 | 2002-07-24 | DE-STA-CO Metallerzeugnisse GmbH | Schwenkvorrichtung |
EP1225004A3 (de) * | 2001-01-19 | 2003-03-12 | DE-STA-CO Metallerzeugnisse GmbH | Schwenkvorrichtung |
DE102004007346B3 (de) * | 2003-11-04 | 2005-04-21 | Tünkers Maschinenbau Gmbh | Kniehebelspannvorrichtung - auch Spannwerkzeug wie Punktschweißvorrichtung mit Kniehebelgelenkanordnung, oder Clinchwerkzeug mit Kniehebelgelenkanordnung oder dergleichen -, zur Verwendung im Karosseriebau der Kfz-Industrie |
ITUB20153120A1 (it) * | 2015-08-13 | 2017-02-13 | Pneumax S P A | Unita' di attuazione del tipo a leva articolata a efficienza ottimizzata |
EP3130809A1 (de) * | 2015-08-13 | 2017-02-15 | Pneumax S.p.A. | Gelenkhebelantrieb mit optimiertem wirkungsgrad |
CN110181439A (zh) * | 2019-06-25 | 2019-08-30 | 京东方科技集团股份有限公司 | 用于夹紧卡匣的夹紧器件和卡匣组件 |
Also Published As
Publication number | Publication date |
---|---|
BR9803715A (pt) | 1999-11-23 |
DE19732600C2 (de) | 2000-03-30 |
DE59807698D1 (de) | 2003-05-08 |
DE19732600A1 (de) | 1999-02-25 |
US6206353B1 (en) | 2001-03-27 |
EP0894573B1 (de) | 2003-04-02 |
EP0894573A3 (de) | 1999-04-28 |
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