Ultrasonic welder clamp

A device for joining thermoplastic workpieces, comprising:

• an ultrasonic welder including an ultrasonic transducer, a booster and a horn having a welding tip;
• a clamping mechanism coupled to the ultrasonic welder and including an upper frame coupled to a boot, wherein the upper frame of the clamping mechanism is rotatably coupled to the booster, and wherein the clamping mechanism rotates about a longitudinal axis of the ultrasonic welder;
• the welding tip of the horn of the ultrasonic welder projecting into an aperture in the boot of the clamping mechanism;
• and
• wherein the clamping mechanism exerts a clamping force on the workpieces separate from a welding force exerted on the workpieces by the ultrasonic welder when the ultrasonic welder is operating to join the thermoplastic workpieces.

A device for joining thermoplastic workpieces, comprising:

• an ultrasonic welder including an ultrasonic transducer and a horn having a welding tip;
• a clamping mechanism coupled to the ultrasonic welder and including an upper frame coupled to a boot;
• and
• the welding tip of the horn of the ultrasonic welder projecting into an aperture in the boot of the clamping mechanism;
• wherein the boot includes an air passageway fluidly coupleable to a pressurized air supply that blows air onto the horn of the ultrasonic welder;
• wherein the clamping mechanism exerts a clamping force on the workpieces against an anvil;
• and
• wherein the ultrasonic welder exerts mechanical vibration on one of the workpieces to join the thermoplastic workpieces when the clamping mechanism exerts the clamping force on the workpieces against the anvil.