An automatic steel-bar coupling head making machine, comprising:
- a fixing base having a bottom side fastened on a plane;
- a positioning mechanism fastened at a position on an upper surface of the fixing base and adjacent to a first side edge of the fixing base and comprising two fixtures, wherein each of the two fixtures has a fastening groove recessed on a side surface thereof, the fastening grooves of the two fixtures correspond to each other and form a channel therebetween, under a condition that the two fixtures are not pressed against with each other, so as to enable a steel bar to be passed through the channel, and wherein, under a condition that the two fixtures are pressed against with each other, the fastening grooves are pressed against two opposite outer edges of the steel bar, so as to fixedly clamp the steel bar between the two fixtures;
- a guiding seat having a bottom side fastened at a position on the upper surface of the fixing base and adjacent to a second side edge of the fixing base, wherein the second side edge of the fixing base is disposed opposite the first side edge of the fixing base;
- a transverse moving mechanism having a bottom side movably positioned on the guiding seat, wherein the transverse moving mechanism is movable on an upper surface of the guiding seat along a transverse direction;
- a longitudinal moving mechanism having a bottom side movably positioned on an upper side of the transverse moving mechanism, wherein the longitudinal moving mechanism is movable on the upper surface of the transverse moving mechanism along a longitudinal direction;
- a processing mechanism assembly fastened on an upper surface of the longitudinal moving mechanism, and comprising:
- a start mechanism comprising a positioning detection rod movably disposed at a first end thereof, and configured to generate a start signal under a condition that the positioning detection rod is pressed by an end of the steel bar to longitudinally move a predetermined distance;
- a first turning mechanism configured to perform first turning on a peripheral edge of the steel bar adjacent to the end of the steel bar;
- a second turning mechanism configured to perform second turning on the peripheral edge of the steel bar adjacent to the end of the steel bar, and a removal amount of the second turning smaller than that of the first turning;
- and
- a thread-rolling mechanism configured to perform thread rolling on the peripheral edge of the steel bar adjacent to the end of the steel bar, to form a coupling head on the peripheral edge of the end of the steel bar;
- and
- a control mechanism electrically connected with the positioning mechanism, the transverse moving mechanism, the longitudinal moving mechanism, and the processing mechanism assembly respectively, and configured to move the transverse moving mechanism, the longitudinal moving mechanism, and the processing mechanism assembly to initial positions respectively, so as to enable the positioning detection rod to correspond to the channel along a longitudinal direction, wherein, upon receipt of the start signal, the control mechanism:
- drives the positioning mechanism, the transverse moving mechanism, the longitudinal moving mechanism, and the processing mechanism assembly;
- enables the two fixtures to clamp the steel bar;
- and
- provides for sequential performing of the first turning, the second turning, and the thread rolling on the peripheral edge of the steel bar adjacent to the end of the steel bar.