Method for controlling the movement of a three-dimensionally pivotable shearer arm of a partial section shearing machine, and device for carrying out the method

摘要

To control the movement of a cutting arm which can be pivoted on all sides of a part-cut cutting machine, the pressure medium volume for the application of one of the time elapsed in the drives (8, 12) of the cutting arm designed as cylinder piston units and / or the pressure medium volume supplied to the respective drive (8, 12) is measured and dependent from the desired chip specification after reaching the time required for the chip specification to act upon a drive (8) or the volume for the adjustment in the direction of the chip specification, the pressure medium supply to this drive (8) is closed and only the pressure medium supply to the feed drive (12) is released. For this purpose, electrically controllable valves (23, 17) are switched into the pressure medium lines to the drives and connected to an electrical or electronic control device (26), the electrical or electronic control device (26) having adjustable timing elements (21) and / or Volume measuring devices (32) in the pressure medium lines and / or displacement transducers on the adjusting cylinders (8, 12) contain controlled switches for actuating the electrically controllable valves (23, 17).