In the four main automotive processes, body-in-white (BIW) welding is a key step.
With lightweight bodies, more and more bolts are being tightened right inside the welding line.
However, body stampings are large and curved; part-to-part variation is high, and welded sub-assemblies shift, so threaded holes are often off their nominal position.

Previously the typical cure was an industrial camera that re-localised every hole.
Planar cameras fix XY errors, but they cannot cope with the remaining angular error: the bolt face is not perpendicular to the spindle axis, so the socket “cocks” and the controller throws a torque alarm.
Today’s lines have jumped from 30 JPH to 60 JPH; the photo stop hurts takt time and the hardware cost climbs, making camera-guided tightening less attractive.

To solve this Danikor offers a floating-socket automatic tightening solution for hex-head bolts.

The socket is built into a blow-and-vacuum spindle and can tilt and shift laterally; it self-aligns even when the hole is misplaced, so the bolt still enters and seats correctly.
The technology is ideal for battery packs, body sides, and any feature where hole position is only “fair”.

Key advantages:

1. Higher insertion & tightening success
   Float range 0.5 – 2.5 mm (adapts to stand-off length) lets the socket “hunt” for the hole, overcoming both position and friction anomalies during rundown.
   Result: dramatic jump in bolt-to-hole success rate.

2. Lower cost, higher speed
   No camera, no lighting, no controller – saving tens of thousands per station.
   Part tolerances can be relaxed, cutting stamping cost.
   Removing the vision step shortens overall cycle time and keeps 60 JPH lines running smoothly.

3. Easy to use, easy to maintain
   Camera systems need hand-in-hand calibration between robot and vision coordinates; troubleshooting is time-consuming.
   The floating socket needs no calibration at all – plug-and-run.
   Start-up is faster and day-to-day operation is almost maintenance-free, so overall equipment effectiveness (OEE) rises.

By replacing vision-guided localisation with a purely mechanical, self-aligning socket, Danikor lets BIW lines hit faster takt times, accept lower-cost parts and still deliver every bolt correctly tightened.