Microguide EGS Ejection Guide Sleeve
Due to the extreme opening capability of our overgrip collets, workpiece ejection must be very reliable to prevent a part from becoming stuck in the slots of the collet. Therefore Masa have developed the Microguide EGS ejection guide sleeve to prevent parts from falling inside the collet instead of ejecting into the part catcher.
Each Microconic Over-grip collet is supplied with a brass Microguide EGS ejection guide sleeve blank. The Microguide EGS sleeve can be bored, drilled, or machined to match the part profile and support the part and guide it for reliable ejection into the part catcher.
You will need to machine the Microguide EGS to fit your particular part setup. We suggest using programmed cycle stops while validating the production setup to make sure part ejection is reliable.
The Microconic over-grip collet is extremely rigid and precise. If it closes onto a part wrapped with chips the collet may be over-stressed and break. It is critical that the workpiece be free of wrapped chips. High pressure coolant is recommended to blast away chips.
There are many other techniques that can be applied to keep the part clear of chips, such as chipbreaker inserts, speed/feed optimization, chipbreaker G-code cycles and cutter path retracing, amongst others.
It bears repeating that we suggest using programmed cycle stops while validating the production setup so the operator can confirm the part is clear. Once chip control is proven reliable that won’t be necessary.
