Abstract: A pipe cutter according to the invention has an inner head part which, in the working position, rotates about a pipe which is clamped in the inner head part and is to be processed. Integrated in the inner head part are a spring-mounted cutting wheel head (8) having a cutting wheel (7) for cutting the pipe and a plurality of support rollers (9) in spring-mounted receptacles (10). The arrangement and formation of cutting wheel (7) and support rollers (9) is such that the clamped pipe is at right angles to the cutting wheel (7), and a right-angled cut is thus achieved. Moreover, a defined feed cutting force can be set by the spring mounting of cutting wheel head (8) and support roller receptacles. During cutting, the pressure on the pipe decreases with increasing cutting depth, and the pipe can thus be cut cleanly and without burrs.

Abstract: A pressing tool (13) includes a fluid pump (4), a cylinder element (5) arranged connecting with this and a piston which can be slid forward in the cylinder element (5) by pressure fluid of the fluid pump (4) and reset by a return spring (20a). A piston rod (6) is passed out to the cylinder element (5) as an activation part. The pressing tool (13) is moreover outfitted with a position measuring device (12, 12a; 112, 212, 212a) which measures without contact which makes the piston position continuously detectable over a positioning range free of disturbance and with a presence sensor (52). The presence sensor (52) verifies the presence of a jointing clamp (51) and issues an indicator signal in the event that a jointing clamp (51) is missing or improperly fastened and shuts the pressing tool (13) off following a delay period to the extent that no orderly inserted jointing clamp (51) is yet available.

Abstract: A press tool for pressing a receiving part of a fitting onto a pipe is provided. The press tool includes two elastically-deformable press elements, each having a first end, a pressing region, assigned to the sealing section, having an inner shape that at least partially departs from a constant curvature in a circumferential direction, and a second end having a force input region and a stop surface. A hinge couples the press elements together at the first end of each press element. When the press tool is closed, the stop surfaces of the press elements abut one another, and when the press tool is closed and a pressing force is applied to the force input regions of the press elements, the press elements elastically deform such that the inner shapes of the pressing regions are substantially constantly curved in the circumferential direction.

Abstract: A pipe cutter according to the invention has an inner head part which, in the working position, rotates about a pipe which is clamped in the inner head part and is to be processed. Integrated in the inner head part are a spring-mounted cutting wheel head (8) having a cutting wheel (7) for cutting the pipe and a plurality of support rollers (9) in spring-mounted receptacles (10). The arrangement and formation of cutting wheel (7) and support rollers (9) is such that the clamped pipe is at right angles to the cutting wheel (7), and a right-angled cut is thus achieved. Moreover, a defined feed cutting force can be set by the spring mounting of cutting wheel head (8) and support roller receptacles. During cutting, the pressure on the pipe decreases with increasing cutting depth, and the pipe can thus be cut cleanly and without burrs.

Abstract: A pressing tool (13) includes a fluid pump (4), a cylinder element (5) arranged connecting with this and a piston which can be slid forward in the cylinder element (5) by pressure fluid of the fluid pump (4) and reset by a return spring (20a). A piston rod (6) is passed out to the cylinder element (5) as an activation part. The pressing tool (13) is moreover outfitted with a position measuring device (12, 12a; 112, 212, 212a) which measures without contact which makes the piston position continuously detectable over a positioning range free of disturbance and with a presence sensor (52). The presence sensor (52) verifies the presence of a jointing clamp (51) and issues an indicator signal in the event that a jointing clamp (51) is missing or improperly fastened and shuts the pressing tool (13) off following a delay period to the extent that no orderly inserted jointing clamp (51) is yet available.

Abstract: A press tool for pressing a receiving part (1) of an installation element (2) onto a pipe (3) inserted into the receiving part has two press elements (5) which are connected so as to be movable relative to one another. The receiving part (1) has at least one section (4, 21) which is formed by the pressing process in such a way that the pressed-on section has an outer shape which is substantially constantly curved in the circumferential direction and is within a specified shape tolerance. Each of the two press elements (5) has, on the side facing the respective other press element (5), a pressing region (7, 24) which is assigned to the section (4, 21). At least one of the two press elements (5) is formed to be elastically deformable in such a way that, under the forces acting on the press element (5) during the pressing process, the shape of its pressing region (7, 24) changes.

Abstract: The invention relates to press tools for the connection, by cold forming, of tubular workpieces (2, 3) whose connection regions are provided with circular external cross-sectional shapes and are pushed one into the other. The press jaws (10) of the press tool have, in the closed state, approximately the external cross-sectional shape of the workpieces and can be provided with recesses (13, 17). Such a press tool may also have only two press jaws (10) and one bearing bolt (4). As a result of drive forces (F) introduced into the tool, cold-forming forces are exerted on the workpieces (2, 3) via said tool. Depending on manufacturing tolerances of the workpieces (2, 3), the distance (A) between the press jaws (10) varies.

Abstract: The invention relates to press tools for the connection, by cold forming, of tubular workpieces (2, 3) whose connection regions are provided with circular external cross-sectional shapes and are pushed one into the other. The press jaws (10) of the press tool have, in the closed state, approximately the external cross-sectional shape of the workpieces and can be provided with recesses (13, 17). Such a press tool may also have only two press jaws (10) and one bearing bolt (4). As a result of drive forces (F) introduced into the tool, cold-forming forces are exerted on the workpieces (2, 3) via said tool. Depending on manufacturing tolerances of the workpieces (2, 3), the distance (A) between the press jaws (10) varies.

Abstract: The invention relates to press tools for the connection, by cold forming, of tubular workpieces (2, 3) whose connection regions are provided with circular external cross-sectional shapes and are pushed one into the other. The press jaws (10) of the press tool have, in the closed state, approximately the external cross-sectional shape of the workpieces and can be provided with recesses (13, 17). Such a press tool may also have only two press jaws (10) and one bearing bolt (4). As a result of drive forces (F) introduced into the tool, cold-forming forces are exerted on the workpieces (2, 3) via said tool. Depending on manufacturing tolerances of the workpieces (2, 3), the distance (A) between the press jaws (10) varies.

Abstract: A pressing tool (13) includes a fluid pump (4), a cylinder element (5) arranged connecting with this and a piston which can be slid forward in the cylinder element (5) by pressure fluid of the fluid pump (4) and reset by a return spring (20a). A piston rod (6) is passed out to the cylinder element (5) as an activation part. The pressing tool (13) is moreover outfitted with a position measuring device (12, 12a; 112, 212, 212a) which measures without contact which makes the piston position continuously detectable over a positioning range free of disturbance and with a presence sensor (52). The presence sensor (52) verifies the presence of a jointing clamp (51) and issues an indicator signal in the event that a jointing clamp (51) is missing or improperly fastened and shuts the pressing tool (13) off following a delay period to the extent that no orderly inserted jointing clamp (51) is yet available.

Abstract: A pressing tool for tightly pressing sleeve-like fittings (32a) includes a hydraulic cylinder device having a fork-like connecting part (7) and a drive motor. A pressing jaw (51) with a fastening pin (50) is fastened in the fork-like connecting part (7). A piston of the hydraulic cylinder device, which piston is connected to a piston rod (6), is moved out of the starting position in the cylinder by the drive motor. As a result, the piston rod (6) is extended from the cylinder. As a result of the movement of the piston rod (6), the cheek plates (51a, 51b) of the pressing jaw (51) are moved apart in the region of actuation surfaces (8a, 8b) of the cheek plates (51a, 51b) in order to press the cheek plates (51a, 51b) together in the region of the fittings (32a) to be pressed.

Abstract: A pressing tool for tightly pressing sleeve-like fittings (32a) includes a hydraulic cylinder device having a fork-like connecting part (7) and a drive motor. A pressing jaw (51) with a fastening pin (50) is fastened in the fork-like connecting part (7). A piston of the hydraulic cylinder device, which piston is connected to a piston rod (6), is moved out of the starting position in the cylinder by the drive motor. As a result, the piston rod (6) is extended from the cylinder. As a result of the movement of the piston rod (6), the cheek plates (51a, 51b) of the pressing jaw (51) are moved apart in the region of actuation surfaces (8a, 8b) of the cheek plates (51a, 51b) in order to press the cheek plates (51a, 51b) together in the region of the fittings (32a) to be pressed.