Patent EP-2127800-A1 (EP)
Inventor: LORENZ STEFAN
IPC: B25B11/00
Filed: 2009-05-26
Abstract: The circuit board divider comprises a mechanically influencing or laser based numerically controllable separation device, and a workpiece carrier. The circuit board substrate (4) and the circuit board (5) are held in a course during the separation process of the workpiece carrier. The workpiece carrier comprises a basic base (28) and magnetic holding or supporting element (26) cooperating with the basic base for the guiding plate substrate. A foot section of the holding or supporting element cooperates magnetically with the basic base. The workpiece carrier has a magazine-like reception (32). The circuit board divider comprises a mechanically influencing or laser based numerically controllable separation device, and a workpiece carrier. The circuit board substrate (4) and the circuit board (5) are held in a course during the separation process of the workpiece carrier. The workpiece carrier comprises a basic base (28) and magnetic holding or supporting element (26) cooperating with the basic base for the guiding plate substrate. A foot section of the holding or supporting element cooperates magnetically with the basic base. The workpiece carrier has a magazine-like reception (32) for holding and supporting elements and the separation device is equipped with a gripper by which the holding or supporting elements are removed from the reception and are positionable on the basic base. The removing and positioning of the supporting elements is carried out in numerically controllable manner. The holding or supporting elements have a rejuvenating gripping or centering means by which it grips the circuit board substrate in the gripping or centering means. A permanent magnet is integrated in to the holding or supporting element or in the foot section of the holding or supporting elements. The basic base is formed from iron or iron containing and/or magnetic or magnetizable material. The reception is arranged on the basic base. The holding or supporting elements are equipped in the form of side stop means for positioning or referencing the substrate on the workpiece carriers that are magnetically fixable, are equipped vertically to the circuit board plain over the substrate and are applied in the plain of the substrate externally against the substrate. The side stop element has a graduation or slit-like groove stretching parallel to the plain of the basic base in which an edge of the substrate grips and the substrate is fixable in vertical direction to the workpiece carrier. For positioning and referencing the substrate, two first holding or supporting elements are equipped with the gripping or centering means and the two second holding or supporting elements are equipped with the gripping or centering means. The gripping or centering means of the first holding or supporting means are intended in Z-direction as the second elements. The first holding or supporting elements have a pre-positioning and the second holding or supporting elements have a final fine positioning. The holding or supporting elements are arranged simultaneously on the foot section and have a slight interval than the dimension of the foot sections in the plain of the basic base. A mounting program is mounted for the reception and positioning of the holding or supporting elements in a programmable control device. The gripper comprises a sleeve that is put over the respective holding or supporting element, which is magnetically fixable in the sleeve so that it grips and is manageable. The separation device comprises a chip lining for a tool for milling in which the gripper is introduced for carrying out the mounting process. An independent claim is included for a method for operating a circuit board divider.