Uniform wall thickness hollow screw pump rotor forming machine

Abstract

The invention relates to a hollow screw pump rotor forming machine with uniform wall thickness, which is characterized in that it comprises a frame, an inner mold and an outer mold, the inner mold has a conical shape, and an axial through hole is processed on the inner mold. The shape of the inner wall of the through hole is a spiral shape on the outside of the screw, forming a cavity for processing the rotor of the screw pump, and both ends of the inner mold are fixed on the frame by screws; the outer mold is a conical ring, which is sleeved outside the inner mold. , the inner wall of the outer mold is tightly combined with the outer side of the inner mold, and the two ends of the outer mold are also fixed on the frame by screws. The invention can process the screw pump rotor with steel pipe, can save a lot of steel, greatly reduce the production cost, and has high production precision, high processing efficiency, low manufacturing cost, unlimited processing size and wide application.

Description

technical field [0001] The invention relates to a screw pump rotor molding machine, in particular to a hollow screw molding machine with uniform wall thickness (including single-head, double-head, three-head, four-head, five-head, six-head screw pump rotors). Background technique [0002] The machining of the screw pump rotor is usually processed by ordinary machine tools C6136 and C6280 through screw pitch and cyclone milling. At present, the common problems are: first, the processing precision of this machine tool is relatively low, and the roughness is relatively poor; second, the processing efficiency is low, and it is not suitable for the processing of large-scale screw pump rotors; third, the processing cost is relatively high, First of all, it is processed with solid steel elements, and in the process of processing, welding tools are required, which increases the manufacturing cost! If it is processed on a CNC machine tool, it needs to be processed on a four-axis scr...

AI Technical Summary

Problems solved by technology

At present, the common problems are: first, the processing precision of this machine tool is relatively low, and the roughness is relatively poor; second, the processing efficiency is low, and it is not suitable for the processing of large-scale screw pump rotors; third, the processing cost is relatively high, First of all, it is processed with solid steel elements, and in the process of processing, welding tools are required, which increases the manufacturing cost! If it is processed on a CNC machine tool, it needs to be processed on a four-axis screw dedicated CNC machining center. A four-axis machine tool costs several million yuan, and the processing fee is expensive! The requirements for the operator are also relatively high; fourth, the length of the screw is limited by the length of the machine tool, generally less than six meters

Fifth, the mass of the solid screw is large, the centrifugal force is large, and the stator is vulnerable

In addition, the manufacturing process is slow and consumes a lot of energy

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