Device for cutting to size and handling of a substantially planar blank made of a cfk - semi-finished product and method

摘要

The invention relates to a device 1 for cutting of substantially planar blanks 9 made of a flat resting on a cutting table 2 cfk - semi-finished product 6 by means of a cutting device 20. of the blank 9 is arranged on a handling device by means of a vacuum effective aspiration of gate 3, and then can be positioned freely in space.According to the invention, at least one blank electrode 5 during the lowering of the vacuum effective gate 3 can be contacted with the blank 9 and, accordingly, at least one peripheral electrode 4 with a from the cfk - semi-finished product 6 separated edge section 12 can be electrically contacted. Both electrodes 4, 5 are connected via electrical lines 14 to a dc voltage source 18, a measuring device 16, in particular a (equal to -) current measuring device 17, connected.After the lifting of the separated blank 9 by means of the vacuum required by the effective relative to a sea level 22, a current i. , A current i of approximately 0 ma, is a complete separation occurs. Results in a current i, which is significantly greater than 0 ma, is not completely severed at least one carbon fiber bridge 23 is present, which in a fully automatic production process, preferably by means of a pulse-like the current i is increased to a maximum value i_{A maximum} by the melting is severed. In this way, a problem-free further processing of the blank 9 is also possible, which in particular in highly automated production of ..