Press-fitting centering device for turbine shell plugging cover

Abstract

The invention discloses a press-fitting centering device for a turbine shell plugging cover. The press-fitting centering device comprises a pressing cover, pressing heads, pressing rods and a pressing cover base. The pressing cover base is connected with the pressing cover through a first quick changing mechanism. The lower half part of the pressing cover is of a hollow structure in the axial direction. The hollow structure is internally provided with a second quick changing structure. The pressing heads capable of sliding in the axial direction of the inner wall of the hollow structure are arranged between the second quick changing mechanism and the hollow structure. The pressing heads and the pressing cover are in clearance fit. At least one long groove is formed in the lower half part of the pressing cover in the circumferential direction of the edge area. The pressing rods are arranged in the long grooves. The pressing rods are in clearance fit with the pressing cover. The pressing rods are fastened on the pressing cover through a third quick changing mechanism. Under the initial state, the tail ends of the pressing heads protrude out of the lower portions of the tail ends of the pressing rods. The press-fitting centering device has the advantages that quick replacing of the pressing cover, the pressing heads and the pressing rods can be achieved through the quick changing mechanisms, the production cost is saved, the working efficiency is improved, and the quality of products is guaranteed.

Description

technical field [0001] The invention relates to a press-fit centering device, in particular to a press-fit centering device for a plugging cover of a turbine casing. Background technique [0002] The press-fitting process of the turbine casing cover is a key process in the assembly of the turbocharger turbine casing. The press-fit dimensional accuracy directly affects the function and life of the turbocharger, and the press-fit fixture is related to the reliability of the press-fit. The work of the operator strength and work efficiency. The prior art provides a press-fit and centering device for a turbine casing cover that can ensure press-fit accuracy, high yield and stable working condition. Just for the pursuit of precision, in the prior art, the pressure head and the pressure rod are all fixed on the pressure sleeve, but the pressure head and the pressure rod of the tooling are vulnerable parts, and once the pressure head and the pressure rod are damaged, they cannot ...

AI Technical Summary

Problems solved by technology

Just for the pursuit of precision, in the prior art, the pressure head and the pressure rod are all fixed on the pressure sleeve, but the pressure head and the pressure rod of the tooling are vulnerable parts, and once the pressure head and the pressure rod are damaged, they cannot be replaced, resulting in a The whole set of turbine shell plugging and centering device must be remade, and the cost of tooling is high; and the body is separated from the press, and it will take a long time to replace when changing the line, which will cause more problems.

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