Abstract: A material cutting machine has a tool mount support mounted for reciprocal movement and a tool mount supported by the tool mount support. A driver, such as a pneumatic cylinder, selectively advances and retracts the tool mount support. A control system is operatively coupled to the driver for setting the advancement force of the tool mount support when a tool supported by said tool mount contacts a workpiece, such as the edge or surface of a moving strip. In this way, the depth of cut of the tool is controlled by tool advancement force rather than by accurate positioning of the tool. In one embodiment, the tool mount support may have a head and a base and a resilient member resiliently coupling the head to the base to provide a damped resilience. With this embodiment, a transient spike in the reaction force which may result, for example, from a hard spot in the material, causes the tool to momentarily deflect.

Abstract: A material cutting machine has a tool mount support mounted for reciprocal movement and a tool mount supported by the tool mount support. A driver, such as a pneumatic cylinder, selectively advances and retracts the tool mount support. A control system is operatively coupled to the driver for setting the advancement force of the tool mount support when a tool supported by said tool mount contacts a workpiece, such as the edge or surface of a moving strip. In this way, the depth of cut of the tool is controlled by tool advancement force rather than by accurate positioning of the tool. In one embodiment, the tool mount support may have a head and a base and a resilient member resiliently coupling the head to the base to provide a damped resilience. With this embodiment, a transient spike in the reaction force which may result, for example, from a hard spot in the material, causes the tool to momentarily deflect.

Abstract: The bead trimmer is preferably applied in a production line for elements having longitudinal weld beads (21), where an element slides along a parallel direction to a longitudinal axis thereof (x), and comprises a tool-bearing turret (2) for removable fixing of a trimming tool (30), associated to a first slide (3) which is slidable along a horizontal direction (y) which is transversal with respect to the longitudinal axis (x) between an internal position, in which the tool (30) is aligned with the weld bead (21), and an external position, in which the tool (30) is not aligned with the weld bead (21). The first slide (3) is associated to a second slide (4) which is vertically slidable on a bearing structure (40) along a vertical direction (z) between a lowered position, in which the tool (30) is in contact with the weld bead (21), and a raised position, in which the tool (30) is distanced from the weld bead (21).

Abstract: A mobile rail contouring machine is arranged for continuously removing such unning surface irregularities as ripples, corrugations and overflow metal from rail heads during the continuous movement of the machine along a railroad track. The machine comprises a frame, a rail contouring tool mounting linked to the frame, and a drive for adjusting the mounting vertically relative to the running surface of the rail head and for pressing the mounting thereagainst and laterally without play against the rail head side which is not worked. A plurality of guide rollers engage the running surface of the rail head and vertically guide the mounting therealong and an additional guide roller laterally guides the mounting without play along the rail head side. A rail contouring tool head including a tool holder is mounted on the mounting between two of the guide rollers and a rail contouring tool is mounted in the tool holder.

Abstract: A mobile rail contouring machine is arranged for continuously milling such running surface irregularities as ripples, corrugations and overflow metal from rail heads during the continuous movement of the machine along a railroad track. The machine comprises a frame, a rail contouring tool mounting linked to the frame, guide rollers for vertically and laterally guiding the mounting without play along the sides and the running surface of the rail head of each rail and for pressing the mounting thereagainst, and a rail contouring tool head including a tool holder arranged on the mounting. A rail contouring tool is mounted in the tool holder and the tool head is displaceable with respect to the mounting in directions extending parallel and perpendicularly to the track.

Abstract: Rail heads are contoured with a mobile machine moving continuously along a track and comprising a frame and a rail contouring tool mounting linked to the frame. The mounting is adjusted vertically relative to the running surface of the rail head and pressed thereagainst, and guided along the rail head by a guide roller laterally guiding the mounting along a selected side of the rail head and two additional guide rollers vertically guiding the mounting along the running surface of the rail head. A rail contouring tool head including a tool holder is mounted on the mounting for displacement relative thereto and a rail contouring tool is replaceably mounted in the tool holder and detachably carries a cutting blade having a cutting edge for planing a selected profile of the rail head by the forward thrust of the machine.