Systems and methods for assembling an electro-acoustic transducer including a miniature voice coil

A method for assembling an electro-acoustic transducer, comprising:

• positioning a gluing ring about a tool;
• positioning a bobbin and voice coil about the tool;
• aligning the bobbin and voice coil with the tool;
• forming helicoidal leadout regions by rotating conductive wiring of the voice coil about the tool;
• extending distal ends of the helicoidal leadout regions through notches in the gluing ring;
• and
• positioning a sleeve about the bobbin, voice coil, and gluing ring.

A tool for assembling an electro-acoustic transducer, comprising:

• a mandrel, comprising:
• a bobbin alignment feature about which a bobbin and voice coil are positioned during assembly of the electro-acoustic transducer;
• a sleeve alignment feature below the bobbin alignment feature about which a sleeve is positioned and aligned with the bobbin and voice coil during assembly of the of the electro-acoustic transducer;
• and
• a base portion below the sleeve alignment feature, the tool further comprising:
• a lander core device constructed and arranged for insertion into a tooling apparatus and for removing the electro-acoustic transducer from the mandrel after assembly;
• and
• an insulative ring positioned at a lip between the sleeve alignment feature and the bobbin alignment feature for providing guide paths for distal ends of leadout regions of the voice coil, wherein the base portion communicates with the lander core device below the base portion and further communicates with the insulative ring.

A tool for assembling an electro-acoustic transducer, comprising:

• a mandrel, comprising:
• a bobbin alignment feature about which a bobbin and voice coil are positioned during assembly of the electro-acoustic transducer;
• a leadout hook ring alignment feature about which a conductive leadout hook ring and an insulative ring are positioned;
• a sleeve alignment feature below the bobbin alignment feature about which a sleeve is positioned and aligned with the bobbin and voice coil during assembly of the of the electro-acoustic transducer;
• and
• a base portion below the sleeve alignment feature, the tool further comprising:
• a lander core device constructed and arranged for insertion into a tooling apparatus and for removing the electro-acoustic transducer from the mandrel after assembly, wherein the base portion communicates with the lander core device and further communicates with the insulative ring, the conductive leadout hook ring, and the bobbin, and wherein the conductive leadout hook ring is configured to conductively connect with a leadout wire of the voice coil.