Our client built a proof of concept model using off the shelf optomechanical components however were not satisfied with the performance of the tool. They were having issues repeatably gripping the component being aligned as well as tool stability and low resolution adjustment. We worked very closely with them to develop a set of requirements to ensure we could provide a design that meets their needs.
We chose to minimize the use custom machined parts to keep costs and lead times low. Only where necessary did we design unique parts and most of these are for the kinematic end effectors. Thus the station is comprised of precision linear stages and with a custom end effector and mounts for adaptation of 1um differential micrometers. The component being aligned is gripped in the kinematic jaws of the end effector. The kinematic interface to the component ensures gripping repeatability and stability. The end effector arms are on flex pivots and one arm has compliance machined-in to prevent overclamping of the component.
For this endeavor, Exact Engineering provided the following services:
- Optomechanical Design
- Onsite lab inspection of existing system
- Design of alignment station
- Detail part and assembly drawings
- Part fabrication
- Assembly and delivery of three stations
