NC Blocks come in 3 main shapes: I-shape, L-shape, and R-shape (rectangular) with 3 or 4 hole configurations which make them versatile components in the NAAMS standard components line (next to locating pins of course). The NAAMS Standards for NC blocks can be found on the NAAMS Global Website here.
NC Blocks differ from L Blocks in that they are designed to directly contact the part being worked on and typically only have one set of mounting holes. The material is steel with a black oxide coating for corrosion and
Here is an example of NAAMS assembly with NC blocks used at the end of the clamp arm. In this design, the workpiece would first be positioned by the rough locator and locating pin. Then, the clamp closes and the part is held in place between the NC Blocks while it is being welded or machined in the automation process.
Because every workpiece is different, there is often a need to go beyond the standard in NAAMS assemblies which is why MISUMI offers custom and standard NAAMS NC Blocks. In fact, you have the ability to submit your 3D drawing directly on our special website, 3D2M! Submit your custom block here or browse our selection of standard NAAMS NC Blocks here.
Be sure to check out our previous NAAMS posts!