Contact pressure and contact resistance relation testing device for contact piece

The utility model discloses a contact pressure and contact resistance relation test device for a contact element. An electric contact pressure applying device which continuously applies pressure and is simple in structure is developed and has important value. The device comprises a contact position fine tuning mechanism, a pressure applying mechanism, a housing, a direct current digital voltmeter,a direct current digital ammeter and a direct current stabilized power supply. The contact piece position fine adjustment mechanism can adjust the contact piece simulation piece to be centered with the insulating pressure head in the height direction; the pressure applying mechanism applies pressure through a self-locking screw. According to the utility model, the contact piece position fine tuning mechanism can be used for placing contact piece simulation pieces with different sizes, and the contact piece simulation pieces can be centered with the insulating pressure head in the height direction; the contact pressur