Bar gripper
A bar gripper is an aid to automatically pulling material (pipe or solid material, round) on a CNC lathe . The machined part is cut off and new material must now be traced.
function
Bar grippers are used in CNC lathes to automatically pull bar material out of the chuck . In this case they serve as a replacement for a bar loader on an NC / CNC lathe.
The bar gripper is installed directly in the turret of the lathe or in a boring bar holder. There are two different variants depending on the execution: start in the X-axis (starting from the radius) or start in the Z-axis (towards the spindle).
Bar loading magazine and workpiece stop are not required when using a bar gripper.
material
The housing may be made of aluminum or steel are produced, the jaws are made of hardened steel , hardened (steel) and browned .
history
The history of the bar gripper begins with the introduction of the NC / CNC lathes around 1980. At that time, the lathes were converted in order to be able to manufacture small and medium-sized quantities cheaply and economically.
The job of the bar gripper is to pull bar material in the lathe without people or workers having to do this work every time. With the introduction of computer numerical controls (CNC, Computerized Numerical Control ) of the lathes, it was possible to design the individual work steps (approaching the turret to the material, opening the chuck, pulling the material, closing the chuck, moving the turret away with the bar gripper) reliably .
Individual evidence
- ↑ Berger GmbH: Programming example positioning in X . As of January 25, 2017.
