Automatic assembly production line for buzzers

The utility model discloses an automatic assembly production line for buzzers, comprising a feeding mechanism, a gluing mechanism, a buzzer sheet laying mechanism, a straight contact pin laying mechanism, a first thermoplastic pipe laying mechanism, an oblique contact pin laying mechanism, a second thermoplastic pipe laying mechanism, a thermoplastic pipe heat sealing mechanism, a contact pin welding mechanism, a dispensing mechanism, a solidifying mechanism and a detection sorting mechanism which are sequentially arranged on a workbench. The gluing mechanism consists of an automatic shell positioning mechanism positioned at the rear of a gluer, the automatic shell positioning mechanism comprises a motor, a rotary jig, an optical fiber sensor, a motor base, a support plate and a sensor support, the optical fiber sensor is a reflective optical fiber sensor, is opposite to a shell and is mounted on the upper portion of the sensor support, and the lower portion of the sensor support is fixed onto a side plate of the support plate. The automatic assembly production line is smart in design and simple in structure, high automation degree is realized, manual operation is replaced, labor and material costs are reduced, and production efficiency of an assembly line is improved.