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DE19635865A1 - Clamping force reinforcing arrangement - Google Patents

Clamping force reinforcing arrangement

Info

Publication number
DE19635865A1
DE19635865A1 DE1996135865 DE19635865A DE19635865A1 DE 19635865 A1 DE19635865 A1 DE 19635865A1 DE 1996135865 DE1996135865 DE 1996135865 DE 19635865 A DE19635865 A DE 19635865A DE 19635865 A1 DE19635865 A1 DE 19635865A1
Authority
DE
Germany
Prior art keywords
clamping
screw
clamping force
clamp
lever
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.)
Withdrawn
Application number
DE1996135865
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1996135865 priority Critical patent/DE19635865A1/en
Publication of DE19635865A1 publication Critical patent/DE19635865A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • B25B5/087—Arrangements for positively actuating jaws using cams actuated by a hydraulic or pneumatic piston
    • 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
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments

Landscapes

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

Abstract

The device comprises a clamp-end length which can be adjusted and which incorporates a stack of spring washers. The clamp-end consists of a bush (1) which is threaded at one end so that it can be mounted in the end of a clamp arm. The clamp used can be in the form of a lever system or can be a clamping cylinder. A screw (2), which is mounted in the threaded bush, is used to pull a bar (3) in to compress a stack of spring washers (4). A clamp piece (5) is mounted in a threaded bore of the bar in which it is secured with a lock-nut (6).

Description

Bei den bekannten Kniehebel, Gelenkhebel oder über Kurven gesteuerte Spannsysteme muß der maximale Spannweg genau eingestellt werden, wenn die größte Spannkraft des Systems erreicht werden soll. Bei den Luftdruck gesteuerten Spannsystemen kann sich die Spannkraft bei einer Spannwegveränderung von 0,5 mm schon um ca. 30% verändern. Bei Werkstücken mit unterschiedlichen zu spannenden Stärken durch Werkstücktoleranzen von 1 bis 1,5 mm sind diese Spannsysteme nur bedingt einsatzfähig.In the known toggle lever, articulated lever or controlled via curves Clamping systems, the maximum clamping path must be set precisely, if the greatest elasticity of the system is to be achieved. Both Air pressure controlled clamping systems can increase the clamping force change the span of travel by 0.5 mm by approx. 30%. With workpieces with different exciting strengths These clamping systems are workpiece tolerances of 1 to 1.5 mm only conditionally operational.

Durch den hier zum Patent angemeldeten Spannkraft-Verstärker wird dieses Problem weitgehenst behoben, denn in dem Moment, wo der im Spannhebel oder Spannkolben montierte Spannkraft-Verstärker auf das zu spannende Werkstück aufsetzt, wird das vorgespannte Federelement durch das z. B. Luftdruck betätigte Spannsystem weiter gespannt, bis die maximale Spannkraft des Systems erreicht ist. Gleichzeitig wird das vorgespannte Federsystem bis zum Erreichen der maximalen Spann­ kraft zusammengedrückt, wodurch ein zusätzlicher Spannweg erreicht wird, der die üblichen Toleranzen der zu spannenden Werkstücke aus­ gleicht.Due to the clamping force amplifier (patent pending) this problem has been largely resolved, because the moment the im Clamping lever or clamping piston mounted clamping force amplifier on the the prestressed spring element through the z. B. Air pressure actuated clamping system further tensioned until the maximum clamping force of the system has been reached. At the same time the pre-tensioned spring system until the maximum tension is reached force compressed, whereby an additional clamping path is achieved the usual tolerances of the workpieces to be clamped equal.

Die Abb. I bis III zeigen die üblichen Spannsysteme bei denen die maximale Spannkraft nur erreicht wird, wenn der Spannhebel bzw. der Spannzylinder den maximalen Weg auf das zu spannende Werkzeug fährt, damit das Kraftgelenk die günstige Stellung zur Kraftübertragung erreicht. Fig. I to III show the usual clamping systems in which the maximum clamping force is only achieved when the clamping lever or the clamping cylinder travels the maximum distance to the tool to be clamped so that the power joint reaches the favorable position for power transmission.

Arbeitsfolge bei Verwendung des Spannkraft-Verstärkers Die Vorspannung der Feder wird so eingestellt, das beim Aufsetzen des Spannhebels oder des Spannzylinders des jeweiligen Spannsystems auf das Werkstück das Kraftgelenk eine Stellung erreicht, bei der ca. 20% mehr Kraft am Spannhebel bzw. am Spannzylinder aufgebracht wird, um mit Sicherheit die Spannfeder bis zur max. zur erreichenden Spannkraft des Kraftgelenkes zu spannen, was der max. Spannkraft des jeweiligen Spannsystems entspricht. Sequence of work when using the clamping force amplifier The preload of the spring is set so that when it is put on the clamping lever or the clamping cylinder of the respective clamping system the power joint reaches a position on the workpiece in which approx. 20% more force applied to the clamping lever or the clamping cylinder is, in order to secure the tension spring up to the max. to achieve Tension of the power joint, which the max. Resilience of the corresponds to the respective clamping system.  

Abb. IV zeigt beispielweise den Aufbau eines Spannkraft-Verstärkers der an ein vorhandenes Spannsystem angebaut werden kann. Die Feder 4 wird durch die Schraube 2 entsprechend vorgespannt. Dann wird der Spannkraft-Verstärker in den Spannhebel oder in den Spannzylinder des jeweiligen Spannsystems eingeschraubt. Bei Belastung der Druck­ schraube 5 wird über die Einstellmutter 6 der Federkolben 3 gegen die Federn 4 gedrückt die sich an der Schraube 1 und so mit am Spann­ hebel oder am Spannzylinder absetzt, bis die größte Spannkraft des jeweiligen Systems erreicht ist. Fig. IV shows, for example, the structure of a clamping force amplifier that can be attached to an existing clamping system. The spring 4 is biased accordingly by the screw 2 . Then the clamping force amplifier is screwed into the clamping lever or into the clamping cylinder of the respective clamping system. When loading the pressure screw 5 is pressed over the adjusting nut 6 of the spring piston 3 against the springs 4 which settles on the screw 1 and thus on the clamping lever or on the clamping cylinder until the greatest clamping force of the respective system is reached.

Claims (3)

1. Spannkraft-Verstärker dadurch gekennzeichnet, das die Schraube (1) mit einem Gewinde für den Anbau an einen Spannhebel oder Spann­ zylinder befestigt werden kann, und das in der Schraube (1) die Schraube (2) gleitend eingebaut ist, so das der Federkolben (3) bei Belastung der Druckschraube (5) über die Mutter (6) gegen den Feder­ kolben (3) und die Federn (4) in der Bohrung (7) der Schraube (1) eintauchen kann.1. clamping force amplifier characterized in that the screw ( 1 ) with a thread for attachment to a clamping lever or clamping cylinder can be attached, and that in the screw ( 1 ) the screw ( 2 ) is slidably installed, so that the Spring piston ( 3 ) when the pressure screw ( 5 ) is loaded via the nut ( 6 ) against the spring piston ( 3 ) and the springs ( 4 ) can be immersed in the bore ( 7 ) of the screw ( 1 ). 2. Spannkraft-Verstärker nach Anspruch 1, dadurch gekennzeichnet, das er auch sowohl in einen Spannhebel wie Abb. 1 + 2 in einen Spann­ zylinder wie in Abb. III eingebaut werden kann.2. clamping force amplifier according to claim 1, characterized in that it can also be installed both in a clamping lever such as Fig. 1 + 2 in a clamping cylinder as in Fig. III. 3. Spannkraft-Verstärker nach Anspruch 1 + 2 dadurch gekennzeichnet, das über die Schraube (2) die Vorspannung der Feder (4) verändert werden kann.3. clamping force amplifier according to claim 1 + 2, characterized in that the bias of the spring ( 4 ) can be changed via the screw ( 2 ).
DE1996135865 1996-09-04 1996-09-04 Clamping force reinforcing arrangement Withdrawn DE19635865A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1996135865 DE19635865A1 (en) 1996-09-04 1996-09-04 Clamping force reinforcing arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996135865 DE19635865A1 (en) 1996-09-04 1996-09-04 Clamping force reinforcing arrangement

Publications (1)

Publication Number Publication Date
DE19635865A1 true DE19635865A1 (en) 1998-03-05

Family

ID=7804598

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996135865 Withdrawn DE19635865A1 (en) 1996-09-04 1996-09-04 Clamping force reinforcing arrangement

Country Status (1)

Country Link
DE (1) DE19635865A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524079A1 (en) * 2003-10-14 2005-04-20 DE-STA-CO Metallerzeugnisse GmbH Drive unit for clamping devices
WO2009095300A1 (en) * 2008-01-31 2009-08-06 Bessey Tool Gmbh & Co. Kg Workpiece pressurizing device for a clamping tool, and clamping tool
CN103203698A (en) * 2013-03-27 2013-07-17 山东理工大学 Glass sheet clamp for low-temperature ultrasound anodic bonding device
WO2013111400A1 (en) * 2012-01-27 2013-08-01 Smc Kabushiki Kaisha Electric clamp apparatus
CN107520723A (en) * 2016-06-17 2017-12-29 罗伯特·博世有限公司 Hand held power machine
IT201900018755A1 (en) * 2019-10-14 2021-04-14 Mauro Fissolo LOCKING SYSTEM FOR MECHANICAL ELEMENTS TO BE ASSEMBLED, IN PARTICULAR SHEETS TO BE WELDED

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524079A1 (en) * 2003-10-14 2005-04-20 DE-STA-CO Metallerzeugnisse GmbH Drive unit for clamping devices
WO2009095300A1 (en) * 2008-01-31 2009-08-06 Bessey Tool Gmbh & Co. Kg Workpiece pressurizing device for a clamping tool, and clamping tool
WO2013111400A1 (en) * 2012-01-27 2013-08-01 Smc Kabushiki Kaisha Electric clamp apparatus
CN104066553A (en) * 2012-01-27 2014-09-24 Smc株式会社 Electric clamp apparatus
CN104066553B (en) * 2012-01-27 2016-03-30 Smc株式会社 Electrical clip clamping apparatus
RU2602582C2 (en) * 2012-01-27 2016-11-20 СМСи КАБУСИКИ КАИСА Electric clamp apparatus
TWI562868B (en) * 2012-01-27 2016-12-21 Smc Kk Electric clamp apparatus
DE112012005763B4 (en) 2012-01-27 2019-10-24 Smc Kabushiki Kaisha Electric tensioning device
CN103203698A (en) * 2013-03-27 2013-07-17 山东理工大学 Glass sheet clamp for low-temperature ultrasound anodic bonding device
CN107520723A (en) * 2016-06-17 2017-12-29 罗伯特·博世有限公司 Hand held power machine
IT201900018755A1 (en) * 2019-10-14 2021-04-14 Mauro Fissolo LOCKING SYSTEM FOR MECHANICAL ELEMENTS TO BE ASSEMBLED, IN PARTICULAR SHEETS TO BE WELDED

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee