Available Technology

Quasi-kinematic Coupling

Certain types of prior kinematic couplings have been used to provide affordable submicron repeatability; however, their operation generally leaves gaps between the mated components, and they are therefore not well-suited for applications that require contact or sealing, such as casting. This invention overcomes such limitations by using conical shaped grooves with relieved sides which can direct a desired portion of their error resistance along a direction without seriously compromising the resistance to error in an orthogonal direction.
Abstract: 
A traditional kinematic coupling has six distinct points of contact, such as provided by three hemispheres making contact with three Vee-grooves. This technology is similar, but the vee-grooves are curved to form cones with relieved sides. The hemispheres make contact with the curved surfaces, and the stiffness in a direction orthogonal or normal to the cone surface is very high – much higher than any restraint in a direction tangent to the contact normal. Hence, mathematically, in terms of dominant stiffness of the system, the system will behave as if kinematically coupled.
Benefits: 
Leaves no gaps between mated components and ensures cooling
applications: 
Inventors: 
Alexander Slocum
Lab Representatives
Share to Facebook Share to Twitter Share to Google Plus Share to Linkedin