High power electrical contacts for robotic tool changer

Details High power electrical contacts for robotic tool changer High power electrical contacts for robotic tool changer

1998-04-17

2000-09-12

Stephan, Steven L.

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

439814, 439891, H01R 1324

Patent

active

061169668

ABSTRACT:
Disclosed are male and female electrical contacts for transferring high electrical power between a master assembly and a tool assembly of a robotic tool changer. The male and female contacts have corresponding outwardly-projecting and inwardly recessed conical or frusto-conical contact surfaces which tend to cause contaminants to slide off the surface of the contacts. The contacts may instead have corresponding outwardly-projecting and inwardly recessed contact surfaces having spherical, frusto-spherical, ellipsoid, frusto-ellipsoid, ovoid, or frusto-ovoid shapes. Each of the contacts includes a contact base for attaching the contact to one of the assemblies of the robotic tool changer and a contact tip removably attached to the contact base, thereby allowing the contact tip to be replaced without detaching the contact base from the robotic tool changer. The contact tip of either or both of the electrical contacts is mounted in such a way as to have compliance in at least one direction. The contact bases have oval or elliptical shaped though-holes for making better contact with the high power cables of the robotic tool changer. The contacts are rhodium-plated to increase their resistance to wear and contamination.

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