Multi-stage generating spinning forming device for machining ribbed long cylinder component and machining method

Abstract

The invention provides a multi-stage generating spinning forming device for machining a ribbed long cylinder component and a machining method. The multi-stage generating spinning forming device comprises a blank fixing device, a forming roller device, a radial feeding device, a main shaft rotating device and an axial feeding device; and the axial feeding device is arranged on one side of the blank fixing device, the main shaft rotating device is installed above the blank fixing device, the top end of the main shaft rotating device is fixedly connected through the axial feeding device, the forming roller device is installed on the main shaft rotating device, and the radial feeding device is mounted in the forming roller device. Compared with a traditional spinning forming process, the device overcomes the defects that the ribbed cylindrical part can only be formed at a time, a mold corresponding to the ribbed cylindrical part needs to be arranged, and the like, and the production and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the field of preparation of ribbed cylindrical parts, in particular to a multi-stage generating and spinning forming device and a processing method for processing ribbed long cylindrical parts. Background technique [0002] Ribbed cylindrical parts are widely used in the field of major aerospace equipment such as hypersonic aircraft and rocket fuel storage tanks. Such components are mostly used in extreme working environments and have high load bearing, high precision, light weight and high reliability. Features. [0003] The existing forming and manufacturing methods of ribbed cylindrical parts include four processes: milling, chemical milling, welding of reinforcing ribs and cylinder, and spinning forming, but there are certain deficiencies in all four processes. The cylindrical parts with ribs processed by mechanical milling and bending have long processing cycle, high cost and low material utilization rate, and defects suc...

AI Technical Summary

Problems solved by technology

The cylindrical parts with ribs processed by mechanical milling and bending have long processing cycle, high cost and low material utilization rate, and defects such as protrusions are prone to appear on the thin wall during the rolling stage, making it difficult to guarantee the forming accuracy; chemical milling There is a rounded corner at the root of the processed ribbed cylindrical parts with a radius close to the processing depth, resulting in low precision of the processed ribbed cylindrical parts, which is difficult to meet the service requirements; Due to the low strength of the welding seam, the reliability of the parts will be reduced; the traditional spin-formed ribbed cylindrical parts have the advantages of high material utilization and high efficiency, but they can only be formed in one pass, which has a high impact on the forming conditions. Requirements, and different molds are required for different ribbed cylindrical parts, the cost is high, and the universal applicability is low

For long tube members with ribs, the diameter expansion phenomenon of traditional spinning forming becomes more and more obvious with the increase of tube length, resulting in a decrease in forming accuracy

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