Are there any collaborative robots that focus on assembly tasks in mixed human-robot workcells?

Yes. There are several collaborative robots (cobots) specifically used for assembly tasks in mixed human-robot workcells.

Examples include:

• Universal Robots (UR3e, UR5e, UR10e)
  Widely used for small-part assembly, screwdriving, pick-and-place, and kitting in shared workspaces.

• FANUC CRX series
  Common in assembly applications like machine tending, fastening, and component placement.

• ABB YuMi / GoFa / SWIFTI
  YuMi is especially known for small-parts assembly and delicate two-arm collaboration.

• Doosan Robotics cobots
  Often deployed for precision assembly, insertion, and packaging in collaborative environments.

• KUKA LBR iiwa
  Used in research and industry for compliant assembly, force-sensitive insertion, and human-robot collaboration.

Typical assembly tasks they support in mixed workcells:

• screwdriving
• press-fit insertion
• part alignment
• pick-and-place
• subassembly handling
• testing and inspection support

If you want, I can also give you:

1. a comparison table of these cobots for assembly, or
2. examples of real-world assembly workcell setups.