AUTOMOBILE ENGINE MARKING DEVICE Russian patent published in 2000 - IPC

FIELD: automotive industry; large-size articles auxiliary marking equipment. SUBSTANCE: proposed device has working member in form of drilling head made as gang of marking sectional drills-marking tools, each containing two-level cutting tool made in form of central spiral right-hand rotation drill with support bushing in its middle part and left-hand rotation counterbore connected by dowel press-fitted square to axis of central spiral drill for relative longitudinal displacement in guide holes of working member for marking. Working member is made in form of two parallel plates- support plate and jig plate, whose guide holes are arranged at equal pitch in parallel rows according to which two-level holes are drilled to form sign marks of required depth on surface of article. Reversing drive to each of sectional drills-marking tools is made in form of small-size electric motors with built-in reduction gears connected by flexible shafts with central spiral drills to provide their longitudinal displacement in working member guide holes for marking. EFFECT: provision of new marking system, possibility of developing automatic marking devices employing drilling method. 2 cl, 3 dwg