DE20309300U1

DE20309300U1 - Parallel clamp for sheet metal presentation to laser welding unit has jaws retaining parallel presentation in both open and closed positions

Info

Publication number: DE20309300U1
Application number: DE20309300U
Authority: DE
Original assignee: EDUARD BAUMGARTNER PNEUMATIK G
Current assignee: EDUARD BAUMGARTNER PNEUMATIK G
Priority date: 2003-06-13
Filing date: 2003-06-13
Publication date: 2003-10-16
Anticipated expiration: 2013-06-14

Abstract

A grip has parallel jaws which are brought together to hold pieces of sheet metal at readiness e.g. for a laser welding process. The clamp head is esp. slides and/or at right angles to the clamp head centreline. The clamp head slides axially relative to the surrounding housing. The jaws retain their parallel presentation in both the open and closed positions.

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims

1. parallel clamp ( 10 ) comprising a housing ( 12 ) with in a clamping head ( 14 ) arranged clamping elements ( 16 , 18 ) which can be moved via a drive ( 20 ) from an open position into a closed position and back, characterized in that the clamping elements ( 16 , 18 ) are mounted displaceably in the clamping head ( 14 ) parallel and / or perpendicular to a central axis ( 26 ) of the clamping head ( 14 ), the clamping head ( 14 ) itself relative to the housing ( 12 ) axially displaceable and can be moved by the drive ( 20 ) from a basic position in which the clamping elements ( 16 , 18 ) assume an open position into a working position in which the clamping elements in the open position their relative position to the clamping head ( 14 ) hold and that the clamping head ( 14 ) can be moved from the working position into a closed position, the clamping elements ( 16 , 18 ) being caused by the axial movement of the clamping head ( 14 ) can be moved into a closed position via deflection means ( 56 , 58 , 60 , 62 ) for clamping objects ( 19 ).

2. Parallel clamp according to claim 1, characterized in that the clamping elements ( 16 , 18 ) in a plane spanned by the objects to be clamped ( 19 ) (clamping plane) are arranged parallel and / or perpendicular to this plane, the clamping elements ( 16 , 18 ) are each designed as cams ( 56 , 58 ) and in cam guides ( 60 , 62 ) of the clamping head ( 14 ) engaging deflecting means, so that with an axial movement of the Spannkop fes ( 14 ) from the working position to the closed position a closing movement of the clamping elements ( 16 , 18 ) is achieved by the cam guide ( 60 , 62 ).

3. Parallel clamp according to claim 1 or 2, characterized in that the cam guide ( 60 , 62 ) is designed as an elongated hole guide which is inclined with respect to the central axis ( 26 ).

4. Parallel clamp according to at least one of the preceding claims, characterized in that the clamping elements ( 16 , 18 ) are guided along at least one guide element ( 44 ) extending perpendicular to the central axis ( 26 ), which via an axially extending further guide element ( 36 ) such as Rod is connected to the drive housing and is mounted in this in order to limit axial movement of the clamping elements in the working or closed position.

5. Parallel clamp according to at least one of the preceding claims, characterized in that the clamping elements ( 16 , 18 ) are held in their open position by means of a spring element ( 38 ) such as a compression spring.

6. Parallel clamp according to at least one of the preceding claims, characterized in that the spring element ( 38 ) is a spiral compression spring which runs parallel or essentially parallel to the guide elements ( 44 ) and is held in receptacles of the clamping elements ( 16 , 18 ).

7. Parallel clamp according to at least one of the preceding claims, characterized in that the parallel clamp ( 10 ) via parallel to each other and parallel to the central axis ( 26 ) extending spring elements such as spring bands with a bracket connected, which is preferably on a tripod in the horizontal direction is movable.

8. Parallel clamp according to at least one of the preceding claims, characterized, that at least one of the spring bands is loaded with a compensating cylinder, which be a force perpendicular to the plane spanned by the spring band acts and thus enables a fine adjustment of the positioning of the parallel clamp light.

9. Parallel clamp according to at least one of the preceding claims, characterized in that a clamping surface ( 50 , 52 ) of the clamping element ( 16 , 18 ) is articulated on the clamping element, the clamping surfaces ( 50 , 52 ) of both clamping elements in the open position take a position in the direction of the objects to be tensioned ( 19 ) V-shaped ge open.

10. Parallel clamp according to at least one of the preceding claims, characterized in that the drive ( 20 ) is designed as a pneumatic drive, comprising a piston ( 24 ) arranged in a cylinder ( 22 ) on which the piston rod ( 28 ) for actuating the Clamping head ( 14 ) is attached.

11. Parallel clamp according to at least one of the preceding claims, characterized in that the clamping elements ( 16 , 18 ) exert a clamping force on the objects ( 19 ) at a pressure P of P = 6 bar in the range from F = 1000 to F = 3000 N. preferably F = 2000 N can be applied.

12. Parallel clamp according to at least one of the preceding claims, characterized, that the clamping force F can be adjusted using a pressure reducer.