ROBOT MODULE FOR RESISTANCE SPOT WELDING Russian patent published in 2008 - IPC B23K11/10 B23K101/02 B25J9/08 

FIELD: physics.

SUBSTANCE: invention relates to nuclear power, in particular, to production of power reactor fuel element spacer lattice using a robot module for resistance spot welding. The module incorporates a welding machine, an industrial robot with tongs fitted on the robot arm and fixing the electrodes, a control system, a table accommodating an attachment device for spacer lattice to be welded, the said device being made in the form of multi-jaw chuck with jaws enveloping the lattice perimeter. The chuck is provided with a platform with a blind hole to receive a sleeve. The hole depth corresponds to the size the sleeve extends by relative to the lattice cell. The said platform incorporates the spacer lattice locks, spacer lattice reference point and a spring-loaded bar. The locks allow their arrangement in the lattice cells. The reference point allows its arrangement in one of the spacer lattice channel holes. The bar is fixed on the platform and can move towards the sleeve. There are base elements arranged on the bar face to enter the sleeve slot.

EFFECT: performances of the module are widened thanks to an accurate positioning of the sleeve relative to the lattice with the subsequent welding both together.

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