Flexure Breakaway Safety Device for Robot End Effector
Original Publication Date: 1988-Apr-01
Included in the Prior Art Database: 2005-Feb-15
A simple assembly has been proposed to provide a spring-loaded parallel motion device for an overload mechanism on a robot end effector. The assembly consists of a sliding section 1 (Fig. 1) which fits into a fixed mated section 2 which is attached to the end of a robot arm. Two leaf springs 3 are secured to the two sections and act as stiffeners for the assembly. The springs fit into grooves 4 on the fixed section, and this minimizes misalignment of the assembly during operation. The spring sizes are chosen so as to respond to the particular application of the assembly. (Image Omitted) In its unflexed position (Fig. 2A), the assembly is in a rectangular mode. When flexed (Fig. 2B), the spring leaves bend and the resultant bulge may then be used to actuate a microswitch.