A COMPLEX THICKEN-DRAWING APPARATUS FOR THICKEN-DRAWING A PLURAL BENDING PORTION AND A METHOD FOR OPERATING THE SAME

摘要

The present invention relates to a composite thickening drawing apparatus for thickening and drawing a plurality of bent portions and a method of operating the same. Complex thickening drawing apparatus for thick drawing a plurality of bent portion according to an embodiment of the present invention comprises a punch (100) for drawing the workpiece (A), to produce a semi-finished product (B); A punch holder (200) for moving the punch (100) up and down by the operation of a first actuator (T1); A die 300 for supporting the workpiece A when the punch 100 is inserted into the inside; And a knockout 400 for drawing the semi-finished product B from the die 300. In the thickening drawing apparatus for thick drawing a plurality of bent portions, the punch 100 includes the punch holder 200. The pressure generated by the first actuator (T1) to protrude downward from the) to form a step, and to thicken the plurality of bending portions (J ₁ , J ₂ , ..., J _n ) formed in the semi-finished product (B). A pressure transmission unit 110 for transmitting to the semi-finished product (B); And a bending part 120 protruding downward from the pressure transmission part 110 and bending the workpiece A to form the semi-finished product B. Since it is possible to produce semi-finished products in which a plurality of bent portions are thickened by only one machining, work productivity can be greatly improved.