The invention belongs to the technical field of multi-stage
centrifugal pump production, and particularly relates to an automatic
production line for assembling a pump cover of a multi-stage
centrifugal pump, which mainly comprises a lifting type turnover
assembly, a first
extrusion assembly, a second
extrusion assembly, a
strake pushing
manipulator and an inner supporting piece feeding assembly, for a reinforced pump cover composed of a pump cover piece, an inner supporting piece and an outer hoop piece, a pump cover blank is adsorbed through a lifting type overturning assembly and is driven to overturn around the axis of the pump cover blank, and a first
extrusion assembly and a second extrusion assembly are jointly used for sequentially extruding, forming and
machining the pump cover blank into a pump cover semi-finished product and the pump cover piece; the second extrusion assembly is matched with the
strake pushing mechanical arm to additionally install multiple circles of outer
strake pieces on the outer side of the pump cover piece, the inner supporting piece feeding assembly is used for additionally installing an inner supporting piece on the inner side of the pump cover piece which moves to the second
station, in this way, automatic assembling of the reinforced pump cover can be achieved, the reinforced pump cover keeps the
advantage of light weight, and meanwhile the assembling efficiency is improved. The
compressive strength and the overall rigidity are qualitatively improved.