End effectors and methods for adhesively attaching a first part to a second part

An end effector for adhesively attaching a first part to a second part, the end effector comprising:

• a support;
• a first nozzle, coupled to the support and movable relative to the support, wherein the first nozzle comprises:
• a first-nozzle body, comprising a first-nozzle-body outlet port;
• and
• a first-nozzle separator plate, extending from the first-nozzle body;
• a second nozzle, coupled to the support and movable relative to the support, wherein the second nozzle comprises:
• a second-nozzle body, comprising a second-nozzle-body outlet port;
• and
• a second-nozzle separator plate, extending from the second-nozzle body;
• a first ultrasonic-sensor roller, coupled to the support such that the first ultrasonic-sensor roller is translationally movable relative to the support wherein the first ultrasonic-sensor roller is rotatable relative to the support and is located between the first nozzle and the second nozzle;
• and
• a second ultrasonic-sensor roller, coupled to the support such that the second ultrasonic-sensor roller is translationally movable relative to the support wherein the second ultrasonic-sensor roller is rotatable relative to the support and is located between the first ultrasonic-sensor roller and the second nozzle.