Cable bar corner setting-out device

The invention discloses a cable bar corner setting-out device. The cable bar corner setting-out device comprises a first framework and a second framework, wherein a rotary connection device is mounted between a pair of adjacent edges of buckling ends of the first framework and the second framework; buckling fixing devices are mounted between the other pair of adjacent edges of the buckling ends of the first framework and the second framework; an outer connection seat is rotationally mounted on the second framework and is provided with a fast outer connection device; the first framework is internally provided with a guide fixed shaft; the guide fixed shaft is rotationally provided with a plurality of guide driven balls; the second framework is internally provided with a guide movable shaft; the guide movable shaft is rotationally provided with a plurality of guide driving balls; a guide floating self-adapted device is mounted between the guide movable shaft and the second framework; the distance between the guide movable shaft and the guide fixed shaft can be automatically adjusted according to the thickness and the quantity of cables. When the cables are set out, the cables are located between the guide driven balls and the guide driving balls so that the cables can be prevented from swinging from left to right; the cable bar corner setting-out device has a simple structure and is convenient to use, and the setting-out working efficiency is improved.