EP0695603A1 - Dispositif de serrage à genouillère - Google Patents

Dispositif de serrage à genouillère Download PDF

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Publication number
EP0695603A1
EP0695603A1 EP95112131A EP95112131A EP0695603A1 EP 0695603 A1 EP0695603 A1 EP 0695603A1 EP 95112131 A EP95112131 A EP 95112131A EP 95112131 A EP95112131 A EP 95112131A EP 0695603 A1 EP0695603 A1 EP 0695603A1
Authority
EP
European Patent Office
Prior art keywords
shells
head piece
toggle lever
rollers
guideways
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
EP95112131A
Other languages
German (de)
English (en)
Other versions
EP0695603B1 (fr
Inventor
Peter Schauss
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.)
DESTACO Europe GmbH
Original Assignee
DE STA CO Metallerzeugnisse GmbH
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 DE STA CO Metallerzeugnisse GmbH filed Critical DE STA CO Metallerzeugnisse GmbH
Publication of EP0695603A1 publication Critical patent/EP0695603A1/fr
Application granted granted Critical
Publication of EP0695603B1 publication Critical patent/EP0695603B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • 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

  • the invention relates to a toggle lever clamping device for clamping workpieces, consisting of a drive member with an actuating rod whose end provided with a roller pin engages with rollers in guide slots of a headpiece placed on the drive member and is articulated via an intermediate member to a tensioning lever mounted on the headpiece.
  • toggle lever clamping devices are known, for example, from US-A-521 295 and GB-A-12 81 598.
  • the guide slots worked into the side flanks of the head piece are highly stressed parts that have to be hardened accordingly. In the event of wear, either the entire head piece must be replaced or, if this should be made in two parts, the side parts must be replaced.
  • the guide slots must be covered with sealing plates on the side to prevent the guide rollers and the guideways from becoming dirty.
  • the invention has for its object to improve a toggle lever tensioning device of the generic type in such a way that with a simplified overall construction and with wear of the guideways, the head piece is not directly affected and the hardening measures themselves are not to be carried out on it, and in the event of guideway wear this occurs
  • Guideways are accessible for easy interchangeability and this is combined with the requirement that at the same time create an area that is easily accessible from the outside and is suitable for accommodating end position sensors, should such sensors be desired and required.
  • the previous guide slots thus lose their guiding and supporting function, i.e., in the end, they are only pass-through slots for the roller support pin, which is connected to the end of the piston rod. Accordingly, no hardening of the headpiece material is to be carried out on the headpiece itself in the production of these penetration slots.
  • the shells to be fitted on the headpiece flanks are also used to hold the roller support pin in its central position with respect to the end of the piston rod.
  • the roller trunnion and ultimately also the rollers therefore no longer need to be fixed, i.e.
  • roller support spigot is fixed against transverse displacement to the piston rod axis by the fitted shells, and the rollers also no longer need to be fixed on the roller support spigot, which was previously relatively complex with snap rings, since this was between the flank surfaces of the head piece on the one hand and the inner walls of the two outer shells on the other hand. In this respect, any role exchange that may become necessary is also considerably simplified.
  • these side-by-side shells have the following advantages: No hardening measures are to be taken on the head piece itself, and the guide slots that are otherwise to be made to the exact size on the head piece are merely to be designed as penetration slots.
  • the shells are separate parts and can be prefabricated independently of the head piece.
  • the shells have a triple function, namely guiding the rollers, locking the roller support pin against transverse misalignment and accommodating end position sensors if these have to be provided. Since all of these functions, which otherwise have to be taken into account on the head piece, are relocated to the shells, assembly, disassembly and thus interchangeability of the parts subject to wear are considerably simplified.
  • the toggle lever tensioning device consists of a drive member 1 (for example pneumatic cylinder) with an actuating rod 2, whose end 4 ′ provided with a roller support pin 4 engages with rollers 3 in guide slots 5 of a head piece 6 placed on the drive member 1 and via an intermediate member 7 is pivotally connected to a tension lever 8 mounted on the head piece 6.
  • a drive member 1 for example pneumatic cylinder
  • actuating rod 2 whose end 4 ′ provided with a roller support pin 4 engages with rollers 3 in guide slots 5 of a head piece 6 placed on the drive member 1 and via an intermediate member 7 is pivotally connected to a tension lever 8 mounted on the head piece 6.
  • FIGS. 5, 7, For this purpose, reference is made in particular to FIGS. 5, 7, from which the assignment of the roller support pin 4 with the rollers 3 to the hardened guideway and to the shells 10 arranged on the outer flanks 9 of the head piece 6 can be seen.
  • the inner walls 11 'of the shells 10, which are adjacent to the ends 4' of the roller support pin 4, have a distance D from one another, which essentially corresponds to the length L of the roller support pin 4.
  • the rollers 3 are seated on slightly reduced-diameter ends 4 'of the roller support pin. As a result, no additional elements are required to keep the roller support pin 4 central to the rod head piece 2 ', which also applies to the rollers 3 themselves. Assembly and disassembly are, as is easily conceivable, easy to carry out, i.e. the shells 10 are only screwed on or off.
  • the hardened guideways 12 of the shells 10 are advantageously partially engaging with respect to their width B in the guiding slots 5 of the head piece 6 arranged, that is, the precise positioning of the shells 10 is ensured, and the mounting holes 16 may well have some play.
  • the shells 10 are expediently formed from a suitable plastic, and in these the guideways 12 and metallic plates 13 forming the inner walls 11 'of the shells 10 are suitably firmly connected to the plastic.
  • this tensioning device is comparatively simplified insofar as the shells 10, as can be seen in particular in FIG. 5, are also used to accommodate end position sensors 14, for which special designs on the head piece 6 are otherwise also required in order to if desired, to be able to install.
  • One of the shells 10, in which the sensors are arranged with corresponding current conductors, serves at the same time as a carrier for a connector plug 15.
  • both shells are designed identically for series production, with on the not used shell the relevant vacancies for receiving the sensors and the connector 15 simply remain vacant and open, which is particularly true for the sensor positions, since these are closed by attaching the relevant shell by the relevant flank wall 9 of the head piece 6. For the rest, of course, nothing stands in the way of closing the connection opening for the connector plug 15 with a plug.
  • the penetration slots 5 are to be worked into the headpiece flanks so precisely that their flank surfaces serve as support surfaces for the engaging, hardened guideways 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Press Drives And Press Lines (AREA)
  • Jigs For Machine Tools (AREA)
EP95112131A 1994-08-06 1995-08-02 Dispositif de serrage à genouillère Expired - Lifetime EP0695603B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9412722U 1994-08-06
DE9412722U DE9412722U1 (de) 1994-08-06 1994-08-06 Kniehebelspannvorrichtung

Publications (2)

Publication Number Publication Date
EP0695603A1 true EP0695603A1 (fr) 1996-02-07
EP0695603B1 EP0695603B1 (fr) 1997-10-29

Family

ID=6912103

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95112131A Expired - Lifetime EP0695603B1 (fr) 1994-08-06 1995-08-02 Dispositif de serrage à genouillère

Country Status (3)

Country Link
EP (1) EP0695603B1 (fr)
DE (2) DE9412722U1 (fr)
ES (1) ES2109041T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0803331A1 (fr) * 1996-04-25 1997-10-29 TÜNKERS MASCHINENBAU GmbH Dispositif de serrage à genouillère pour la construction en carrosserie
FR2780324A1 (fr) * 1998-06-26 1999-12-31 Genus Technologies Dispositif de positionnement, de maintien ou de serrage
US6189877B1 (en) 1998-06-26 2001-02-20 Genus Technologies Device for positioning, holding or gripping
CN105313040A (zh) * 2014-08-01 2016-02-10 佩佩尔+富克斯有限公司 用于肘形杆张紧装置的查问单元

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757947A1 (de) * 1997-12-27 1999-07-01 Sta Co Mettallerzeugnisse Gmbh Spannvorrichtung
CN111604838A (zh) * 2020-06-08 2020-09-01 陈芳芳 一种仪器仪表辅助夹紧装置及其应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US521295A (en) 1894-06-12 And george sniffin
GB1281598A (en) 1968-10-08 1972-07-12 Dover Corp Power operated work clamping device
FR2340798A1 (fr) * 1976-02-13 1977-09-09 Polymatic Sa Tete de bridage irreversible a attelage flottant et demontage rapide
FR2540021A1 (fr) * 1983-01-27 1984-08-03 Franche Comte Alsace Etudes Te Dispositif de serrage pneumatique a genouillere
DE4111430A1 (de) * 1990-04-12 1991-10-17 Volker Schlueter Druckmittelbetaetigte spannvorrichtung
EP0530527A1 (fr) * 1991-09-03 1993-03-10 DE-STA-CO METALLERZEUGNISSE GmbH Moyens de serrage

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US894963A (en) 1907-07-31 1908-08-04 Nathaniel W Martin Wrench.
US3618931A (en) * 1970-01-19 1971-11-09 Leland F Blatt Cam wedge power clamp
US3938208A (en) * 1974-08-15 1976-02-17 Yuan Ho Lee Knockout mechanism for a high-speed automatic cold heading machine
DE3022376C2 (de) * 1980-06-14 1985-08-01 De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt Kniehebelspannvorrichtung zum Festspannen von Werkstücken
DE3602738C1 (de) * 1986-01-30 1987-07-09 Sta Co Mettallerzeugnisse Gmbh Spannvorrichtung
US4723767A (en) * 1986-08-08 1988-02-09 De-Sta-Co Division, Dover Resources, Inc. Rotary powered linear actuated clamp
DE3638526C1 (de) * 1986-11-11 1987-07-30 Sta Co Mettallerzeugnisse Gmbh Elektromotorisch antreibbare Werkstueckspannvorrichtung
FR2639569B1 (fr) * 1988-11-25 1991-01-18 Polymatic Sa Tete de bridage a rattrapage de jeux
DE3938208C1 (fr) 1989-11-17 1990-11-22 Josef Gerhard 4030 Ratingen De Tuenkers
DE4025530A1 (de) * 1990-01-09 1991-07-11 Sta Co Mettallerzeugnisse Gmbh Spannvorrichtung
US5215295A (en) * 1992-06-29 1993-06-01 Delaware Capital Formation Enclosed rotatable head power clamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US521295A (en) 1894-06-12 And george sniffin
GB1281598A (en) 1968-10-08 1972-07-12 Dover Corp Power operated work clamping device
FR2340798A1 (fr) * 1976-02-13 1977-09-09 Polymatic Sa Tete de bridage irreversible a attelage flottant et demontage rapide
FR2540021A1 (fr) * 1983-01-27 1984-08-03 Franche Comte Alsace Etudes Te Dispositif de serrage pneumatique a genouillere
DE4111430A1 (de) * 1990-04-12 1991-10-17 Volker Schlueter Druckmittelbetaetigte spannvorrichtung
EP0530527A1 (fr) * 1991-09-03 1993-03-10 DE-STA-CO METALLERZEUGNISSE GmbH Moyens de serrage

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0803331A1 (fr) * 1996-04-25 1997-10-29 TÜNKERS MASCHINENBAU GmbH Dispositif de serrage à genouillère pour la construction en carrosserie
FR2780324A1 (fr) * 1998-06-26 1999-12-31 Genus Technologies Dispositif de positionnement, de maintien ou de serrage
US6189877B1 (en) 1998-06-26 2001-02-20 Genus Technologies Device for positioning, holding or gripping
EP0967050A3 (fr) * 1998-06-26 2001-05-30 Genus Technologies Dispositif de positionnement, de maintien ou de serrage
CN105313040A (zh) * 2014-08-01 2016-02-10 佩佩尔+富克斯有限公司 用于肘形杆张紧装置的查问单元
CN105313040B (zh) * 2014-08-01 2017-10-27 佩佩尔+富克斯有限公司 用于肘形杆张紧装置的查问单元
US10710205B2 (en) 2014-08-01 2020-07-14 Pepperl+Fuchs Gmbh Query unit for toggle lever clamp

Also Published As

Publication number Publication date
ES2109041T3 (es) 1998-01-01
EP0695603B1 (fr) 1997-10-29
DE59500902D1 (de) 1997-12-04
DE9412722U1 (de) 1994-09-29

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