Rubber Collet Chuck Test on a Round Bar
A round bar projects from the rubber collet. An indicator touches its outside diameter. The camera includes the chuck front, exposed bar length and indicator needle. This view makes the inspection position and part projection easy to see together.
How the grip works
A rubber-flex collet has metal gripping segments joined by vulcanised rubber. The metal contacts the part. The rubber links allow the segments to move and fill the gaps between them. Circumferential contact spreads the grip over the workpiece surface. The collet and chuck are matching components with different jobs.
Start with the part diameter and contact length. Then check the chuck, drawtube and spindle passage. Control the clamping force on thin walls. Place the indicator at the working location you need to inspect. A check near the chuck and a check at the free end measure runout at different positions.
What to check in this setup
- Select the collet for the bar diameter.
- Record contact length and projection.
- Place the indicator at the required inspection point.