A variable-section spring blank, processing tooling and processing technology

Abstract

The invention discloses a variable-section spring blank, a machining tool and a machining process. The spring blank is a spiral spring blank. The cross section of the spiral spring blank is oval, thesection in the axis direction is in an olive shape, and a carbon fiber core shaft pre-buried in a spring material is arranged along the center of the oval. The machining tool comprises a ceramic molding pipe, wherein a conic opening is formed in one end of the ceramic molding pipe. A carbon fiber guide pipe coaxial with the ceramic molding pipe is arranged on the portion, located at the conic opening end, of the ceramic molding pipe. A pay-off spool is arranged in front of the other opening end of the guide pipe. A spring blank cooling mechanism and a carbon fiber traction mechanism are arranged at the other end of the ceramic molding pipe. The machining process comprises the steps that the pay-off spool, the carbon fiber guide pipe, the ceramic molding pipe, the spring blank cooling mechanism and the carbon fiber traction mechanism in the tool are sequentially mounted on a workbench, and quantitative molten spring steel water is cast into the ceramic molding pipe through a metal liquid casting opening of the conic opening of the ceramic molding pipe.

Description

technical field [0001] The invention relates to the technical field of spring processing and manufacturing, and is especially suitable for heavy springs, in particular to a spring blank with a variable cross-section and a carbon fiber mandrel in the center, a processing tool for the spring blank, and a processing technology for the spring blank. Background technique [0002] In recent years, the world's energy crisis, rising oil prices and environmental issues have urgently required the development of heavy machinery in the direction of lightweighting. Lightweight materials (or new materials) are usually used to replace traditional materials in order to achieve lightweight structures and further improve fuel utilization. has become one of the hotspots of research. [0003] Lightweight materials (or new materials) include high-strength steel, aluminum, magnesium and titanium alloys, plastics and composite materials, etc.; compared with metal materials, carbon fiber composite ...

AI Technical Summary

Problems solved by technology

Therefore, the spring is most likely to be damaged at the part where the force is greater, the vibration frequency is higher, and the amplitude is greater.

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