A flanging tool and a flanging processing method

Abstract

The invention discloses a flanging tool and a flanging processing method, which belong to the mechanical machining field. The tool comprises a tool base plate, a workpiece support ring arranged on the tool base plate, a backing ring, and a pressing plate and flanging wheels arranged on the backing ring. A clapboard is placed on the workpiece support ring, and is positioned through the matching of first annular bosses and annular grooves on an outer ring; first flanging edges of a honeycomb seal ring are compressed on the end face of one end of an inner ring through the backing ring; the end faces of one ends of sealing members are compressed through a second annular boss; the pressing plate is placed in the inner ring, so that the pressing plate compresses the honeycomb seal ring onto an inner side wall of the inner ring; outward flanges compress the end faces of the other ends of the sealing members, so that the honeycomb seal ring is fixed in the inner ring; steel strips are flanged through the flanging wheels, so that the formation of indentations or cracks on the steel strips is avoided; meanwhile, the inner ring is supported through the backing ring, so that the deformation of the clapboard during the processing process is avoided.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a flanging tool and a flanging processing method. Background technique [0002] The gas turbine is an internal combustion power machine that uses continuous flowing gas as the working medium to drive the impeller to rotate at high speed, and converts the energy of the fuel into useful work. It is a rotary impeller heat engine. Good sealing can help reduce the fuel consumption of the gas turbine, reduce operation and maintenance costs, and improve the performance of the gas turbine. [0003] At present, the honeycomb seal is a kind of sealing method that is widely used in gas turbines. figure 1 is a gas turbine diaphragm such as figure 1 As shown, the separator includes an outer ring a and an inner ring b arranged concentrically. The outer ring a and the inner ring b are connected by a connecting plate c. The thickness of the outer ring a is greater than that of the inner ri...

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Problems solved by technology

[0003] At present, the honeycomb seal is a kind of sealing method that is widely used in gas turbines. figure 1 is a gas turbine diaphragm such as figure 1 As shown, the separator includes an outer ring a and an inner ring b arranged concentrically. The outer ring a and the inner ring b are connected by a connecting plate c. The thickness of the outer ring a is greater than that of the inner ring b. There is a Annular groove a1, the partition needs to be provided with a honeycomb sealing ring in the inner ring b, figure 2 is a honeycomb seal such as figure 2 As shown, the honeycomb sealing ring includes a steel belt d and a sealing body e arranged on the steel belt d. One end of the steel belt d has a first flange d1. Usually, when setting the honeycomb sealing ring, manual knocking is required. The other end of the steel belt d is flanged to install the honeycomb sealing ring on the inner ring b. This method cannot guarantee the balance of the force, so it is easy to form an indentation on the steel belt d when knocking Or cracks, and because the size of the partition is large and the connecting plate c is thin, it is easy to deform during the knocking process, which affects the assembly of the partition

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