EP1380389B1 - Klemmvorrichtung für flache Werkstücke - Google Patents

Klemmvorrichtung für flache Werkstücke Download PDF

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Publication number
EP1380389B1
EP1380389B1 EP20030380162 EP03380162A EP1380389B1 EP 1380389 B1 EP1380389 B1 EP 1380389B1 EP 20030380162 EP20030380162 EP 20030380162 EP 03380162 A EP03380162 A EP 03380162A EP 1380389 B1 EP1380389 B1 EP 1380389B1
Authority
EP
European Patent Office
Prior art keywords
arm
mooring
clamp
pivot connection
drive means
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 - Fee Related
Application number
EP20030380162
Other languages
English (en)
French (fr)
Other versions
EP1380389A1 (de
Inventor
Pedro Aguirrezabal Ondarra
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.)
Fagor Electrodomesticos SCL
Original Assignee
Fagor Electrodomesticos SCL
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 Fagor Electrodomesticos SCL filed Critical Fagor Electrodomesticos SCL
Publication of EP1380389A1 publication Critical patent/EP1380389A1/de
Application granted granted Critical
Publication of EP1380389B1 publication Critical patent/EP1380389B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B25B5/06—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
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive

Definitions

  • the present invention relates to devices for clamping flat workpieces, particularly metal sheets according to the preamble position of claim 1.
  • a clamping device is known for example from DE19715452 C1.
  • Clamping devices which comprise mooring clamps for holding flat workpieces, particularly metal sheets.
  • DE 197 15 452 C1 describes a device for clamping flat workpieces by means of a hydraulically-operated mooring clamp, using said clamp to hold the top and bottom parts of the workpiece located horizontally, and which is placed in a frame.
  • the clamp can turn from a mooring position to a rest position, underneath the workpiece, by pressure drive.
  • the clamp comprises a first arm and a second arm with pivot connections that are parallel.
  • the first arm can rotate on a horizontal pivot connection on the frame underneath the workpiece, descending from a mooring position to a rest position and, at its free end, bent upward, it receives the rotating support of the second arm, one of the ends of this second arm being able to rest from the upper part on the surface of the workpiece, and the other end of said second arm being connected to a piston cylinder unit installed on the frame so that, in the area where said piston cylinder unit is applied, there are some guide means for the second arm, by which said second arm is guided forced during the rotation movement along the corresponding guide path.
  • the object of the invention is to provide a clamping device for flat workpieces as described in the claims.
  • the clamping device for flat workpieces of the invention comprises a mooring clamp and drive means to move said mooring clamp from a rest position to a mooring position and viceversa.
  • Said mooring clamp comprises a substantially L-shaped first arm to clamp the upper part of a workpiece preferably disposed horizontally, and a second arm to clamp the lower part of said workpiece, both arms being joined by a first pivot connection.
  • the first arm that is, the substantially L-shaped arm, is joined to the drive means by a second pivot connection, and the second arm is connected to a frame by a third pivot connection.
  • the drive means of the device of the invention act on the mooring clamp moving the second pivot connection of the first arm rotating shaft along a rectilinear path, preferably horizontal. This does away with the need of guide means for the movement of said second pivot connection along non-rectilinear paths, while nonetheless maintaining the functionality of the clamping device. This gives rise to a unit with fewer parts that is therefore simpler, lighter and more economical.
  • the fact that the movement of the second pivot connection of the first arm is along a straight line means that the drive means are not subject to back and forth movements depending on the points on said path, so that the device is more robust and compact. Therefore, where for example the drive means comprise a hydraulic cylinder with a rod connected to the second pivot connection of the first arm, because the path of said rotating shaft is a straight line, the hydraulic cylinder remains in a fixed position at all times.
  • the clamping device for flat workpieces of the invention comprises a mooring clamp 1 and drive means 2 that displace said mooring clamp 1 from a rest position (shown in figure 2) to a mooring position (shown in figure 1) , and viceversa.
  • the mooring clamp 1 comprises a substantially L-shaped first arm 3 to hold the upper part of the workpiece 9, preferably placed in a horizontal position, and a second arm 4 to hold the bottom part of the workpiece 9. Both arms 3 and 4 are connected by a first pivot connection 5, the first arm 3 is directly connected to the drive means 2 by a second pivot connection 6, and the second arm 4 is connected to a frame 7 by a third pivot connection 8.
  • the drive means 2 act on the mooring clamp 1 displacing the second pivot connection 6 of the first arm 3 along a rectilinear path, as seen in figures 1, 2 and 3. Said rectilinear path is preferably horizontal.
  • the drive means 2 are fixedly connected to the frame 7.
  • Figure 3 shows the mooring clamp 1 of the invention in three different positions: in the mooring position (on the left of the figure), in an intermediate position (in the centre of the figure) and in a rest position (on the right of the figure). It is seen from this figure 3 that, with the mooring clamp 1 of the invention, the mooring of the workpiece 9 is optimal without having to vary the path of the second pivot connection 6, that is, keeping it completely in a straight line.
  • the drive means 2 comprise a pneumatic or hydraulic cylinder 10 with a rod 11.
  • the pneumatic or hydraulic cylinder 10 is in a fixed position and the rod 11 is connected to the second pivot connection 6 of the first arm 3.
  • the second arm 4 has an extension 12 extending from the arm portion with the third pivot connection 8, and the frame 7 includes a stop 13.
  • said extension 12 and said stop 13 come into contact and prevent arms 3 and 4 from moving up beyond that position.

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

Claims (3)

  1. Eine Klemmvorrichtung für flache Werkstücke, umfassend eine Haltklemme (1) und Antriebmittel(2), die diese Haltklemme (1) aus einer Ruheposition in eine Klemmposition bzw. umgekehrt versetzen, wobei die Haltklemme (1) einen ersten, im Wesentlichen L-förmigen Arm (3) zum Festklemmen des oberen Teils eines vorzugsweise horizontal angeordneten Werkstücks (9) umfasst, so wie einen zweiten Arm (4) zum Festklemmen des unteren Teils des Werkstücks (9), wobei beide Arme (3,4) über eine erste Drehverbindung (5) verbunden sind, wobei der erste Arm (3) über eine zweite Drehverbindung (6) direkt mit den Antriebmitteln (2) und der zweite Arm (4) über eine dritte Drehverbindung (8) mit einem Rahmen (7) verbunden ist, dadurch gekennzeichnet, dass die Antriebmittel (2) auf die Haltklemme (1) einwirken und damit die zweite Drehverbindung (6) des ersten Arms (3) entlang eines geradlinigen Weges bewegen, wobei die Antriebmittel (2) fest mit dem Rahmen (7) verbunden sind, und der zweite Arm (4) eine Verlängerung (12) besitzt und der Rahmen (7) einen Anschlag (13) besitzt, wobei die Verlängerung (12) und der Anschlag (13) in Berührung kommen, wenn sich die Arme (3,4) in die Klemmposition bewegen, und somit die Aufwärtsbewegung der Arme (3,4) begrenzen.
  2. Eine Klemmvorrichtung für flache Werkstücke nach Anspruch 1, wobei der geradlinige Weg im Wesentlichen horizontal verläuft.
  3. Eine Klemmvorrichtung für flache Werkstücke nach einem der vorausgehenden Ansprüche, wobei die Antriebmittel (2) einen Pneumatik- oder Hydraulikzylinder (10) mit einer Stange (11) umfassen, wobei dieser Pneumatik- oder Hydraulikzylinder (10) sich in einer festen Position befindet und die Stange (11) mit der zweiten Drehverbindung (6) des ersten Arms (3) verbunden ist.
EP20030380162 2002-07-09 2003-07-04 Klemmvorrichtung für flache Werkstücke Expired - Fee Related EP1380389B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200201600 2002-07-09
ES200201600A ES2215463B1 (es) 2002-07-09 2002-07-09 Dispositivo de sujecion de piezas planas.

Publications (2)

Publication Number Publication Date
EP1380389A1 EP1380389A1 (de) 2004-01-14
EP1380389B1 true EP1380389B1 (de) 2006-08-09

Family

ID=29724738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030380162 Expired - Fee Related EP1380389B1 (de) 2002-07-09 2003-07-04 Klemmvorrichtung für flache Werkstücke

Country Status (4)

Country Link
EP (1) EP1380389B1 (de)
DE (1) DE60307382T2 (de)
ES (2) ES2215463B1 (de)
MX (1) MXPA03005976A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016203353A1 (de) * 2016-03-01 2017-09-07 Festo Ag & Co. Kg Klemmvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567208A (en) * 1969-06-06 1971-03-02 Leland F Blatt Toggle action jaw type gripper
GB1236005A (en) * 1969-10-13 1971-06-16 Blatt Leland F Toggle action jaw type gripper
GB1343091A (en) * 1971-11-10 1974-01-10 Brammall Inc Force exerting apparatus
DE19715452C1 (de) * 1997-04-10 1998-09-24 Mannesmann Ag Spannvorrichtung zum Halten oder Verfahren von flachen Werkstücken

Also Published As

Publication number Publication date
ES2268307T3 (es) 2007-03-16
EP1380389A1 (de) 2004-01-14
ES2215463A1 (es) 2004-10-01
MXPA03005976A (es) 2004-01-26
DE60307382D1 (de) 2006-09-21
ES2215463B1 (es) 2006-02-16
DE60307382T2 (de) 2007-08-16

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