摘要:
The present invention provides a method of positioning a first pipe facing a second pipe, the end of the first pipe being provided with a first chamfer and a first substantially annular surface placed close to its inside surface, the end of the second pipe being provided with a second chamfer and with a second substantially annular surface located close to its inside surface, said first and second annular surfaces defining a joint plane substantially perpendicular to the longitudinal axes of each of said pipes. According to the invention, a plurality of clamping actuators regularly distributed around the first and second pipes are used and controlled to shift the second pipe relative to the first pipe parallel to said joint plane as a function of a radial offset H, H′ between the first and second annular surfaces so as to guarantee a maximum facing area, referred to as a “coincidence” area for said annular surfaces.
摘要:
Clamp for mechanical parts such as tubes or pipes, comprising a flange (5) with parts (13A, 13B, 13C) connected to one another so as to be pivotable as far as a closed position in which they are continuous. A locking device may be actuated when the flange is closed. The clamp further comprises supports (55; 57) by which rails (49) are connected to the parts with limited freedom of relative movement. The adjacent end faces of the rails have mating surfaces forming a connection by positive locking, which is active in the vicinity of the closed position. Each connection guides the end faces relative to one another into a working position in which the rails (49) form a guide path for tools, and helps to maintain this position when the clamping device is actuated.
摘要:
This invention relates to a method for axial positioning of a first pipe with respect to a second pipe for the welding of said pipes at their ends thereof of which the faces have been previously machined and define a joint plane, according to which a plurality of jacks are distributed around the first and second pipes, and said jacks are connected to a central processing and control unit.According to the invention, the movement of each of the jacks is controlled with respect to said external surface of the first and/or second pipe so as to align and center the internal end surfaces of the first and second pipes. The invention also relates to an associated device.
摘要:
A device for centering and internal clamping of tubular parts such as metal conduits, placed end-to-end so as to be welded to form metal pipelines is provided.
摘要:
The invention relates to a device providing assistance in the working of pipes, including: a plate (5) having an internal cavity and comprising parts (13A, 13B, 13C) assembled together such that they can pivot to occupy a closed position in which they are joined to form a ring; and a plate locking device. The adjacent ends of two plates (13A, 13B, 13C) include corresponding surfaces that are shaped to cooperate and establish a connection as the plate (5) moves into the closed position. Each connection comprises two complementary surfaces (37) that come into contact with one another in the closed plate position. The locking device comprises at least one catch which can be actuated in said position and which acts on the adjacent ends of the plates (13A, 13B, 13C) in order to clamp the complementary contact surface against one another.
摘要:
The present invention relates to a welding device suitable for joining by welding a first and a second part at a weld joint, said parts defining a joint face between said parts, the device comprising: a traveling support mean (2) for moving the device along the weld joint; at least one welding means (4) cooperating with said traveling support means (2) so as to be kept at a distance from said weld joint; means for automatic motion control of the traveling support mean (2) in particular.According to the invention, said at least one welding means is mounted on a single supporting piece (3) facing substantially parallel with said joint face; the device further comprises a first motorized actuator (5) attached to said traveling support means (2) and provided with a first protuberance (51) cooperating with a first seating (52) open onto a first end face of said single supporting piece (3); a second motorized actuator (6) attached to said traveling support means (2) and provided with a second protuberance (61) cooperating with a second seating (62) open onto a second end face of said single supporting piece (3) such that said first (51) and second (61) protuberances are movable in a plane substantially perpendicular to said joint face and generate a control movement of the welding means supporting piece (3).
摘要:
Clamp for mechanical parts such as tubes or pipes, comprising a flange (5) with parts (13A, 13B, 13C) connected to one another so as to be pivotable as far as a closed position in which they are continuous. A locking device may be actuated when the flange is closed. The clamp further comprises supports (55; 57) by which rails (49) are connected to the parts with limited freedom of relative movement. The adjacent end faces of the rails have mating surfaces forming a connection by positive locking, which is active in the vicinity of the closed position. Each connection guides the end faces relative to one another into a working position in which the rails (49) form a guide path for tools, and helps to maintain this position when the clamping device is actuated.
摘要:
This invention relates to a method for axial positioning of a first pipe with respect to a second pipe for the welding of said pipes at their ends thereof of which the faces have been previously machined and define a joint plane, according to which a plurality of jacks are distributed around the first and second pipes, and said jacks are connected to a central processing and control unit.According to the invention, the movement of each of the jacks is controlled with respect to said external surface of the first and/or second pipe so as to align and center the internal end surfaces of the first and second pipes. The invention also relates to an associated device.
摘要:
Device for working tubes, comprising a flange (5) recessed on the inside, with plates (13A, 13B, 13C) joined together so as to be pivotable, up to a closed position in which these plates are joined to form a crown, and a locking device for the flange. The adjacent ends of two plates have mating surfaces forming a connection by positive locking, this connection being active in the vicinity of the closed position of the flange (5). Each positively locking connection comprises two complementary surfaces (37) coming into mutual contact in the closed position of the flange. The locking device comprises at least one latch that can be actuated in this position, which acts on the adjacent ends of the plates to clamp their complementary contact surfaces against one another.
摘要:
The present invention provides a method of positioning a first pipe facing a second pipe, the end of the first pipe being provided with a first chamfer and a first substantially annular surface placed close to its inside surface, the end of the second pipe being provided with a second chamfer and with a second substantially annular surface located close to its inside surface, said first and second annular surfaces defining a joint plane substantially perpendicular to the longitudinal axes of each of said pipes. According to the invention, a plurality of clamping actuators regularly distributed around the first and second pipes are used and controlled to shift the second pipe relative to the first pipe parallel to said joint plane as a function of a radial offset H, H′ between the first and second annular surfaces so as to guarantee a maximum facing area, referred to as a “coincidence” area for said annular surfaces.