Shoemaking machine having ultrasonic positioning function

A shoemaking machine having an ultrasonic positioning function, comprising:

• a sewing device including a cantilever unit, a work platform, a clamping frame unit disposed on said work platform, and a drive unit for driving movement of said clamping frame unit, wherein said work platform, said clamping frame unit and said cantilever unit are arranged in order in a bottom to top fashion along a vertical direction, said cantilever unit having a sewing needle extending toward said clamping frame unit;
• a driving device disposed on said cantilever unit and including a movable seat that is movable toward and away from said clamping frame unit;
• an ultrasonic positioning device connected to said cantilever unit and including a welding head which faces said clamping frame unit;
• and
• a clamping device connected to said movable seat and having a clamping space;
• wherein said ultrasonic positioning device is inserted into said clamping space and is clamped by said clamping device;
• and
• wherein said driving device further includes a lifting drive for driving said movable seat to move toward and away from said clamping frame unit, and wherein, when said lifting drive drives said movable seat to move toward and away from said clamping frame unit, said movable seat, in turn, drives said ultrasonic positioning device to move between a standby position and a spot welding position relative to said clamping frame unit, said movable seat being disposed away from said clamping frame unit when said ultrasonic positioning device is in said standby position, and being proximate to said clamping frame unit when said ultrasonic positioning device is in said spot welding position.