Finishing method and device for two-half-tile thin-wall bushing

Abstract

The invention discloses a finish machining method and device for two half-tile thin-wall linings and relates to machining of thin-wall parts. The technical problems that after finish machining is conducted on existing linings, part deformation is too large, and an inner circle and an outer circle are not concentric are solved. The finish machining method includes the machining steps that a mold is installed on a vertical grinder chuck; the linings are vertically arranged on the mold, and stifles II and stifles I are sequentially arranged on the upper end faces of the linings; inner pull rods are installed and then firmly fix the linings after being aligned; fine grinding is conducted on the outer circle of the linings; outer pull rods are installed and firmly fix the linings, and the inner pull rods are demounted; a boring head is installed, and fine boring is conducted on an inner hole; and the linings and the mold are overall lifted to a vertical lathe, and flange end faces of the linings are lathed. The finish machining method and device are used for finish machining of the two half-tile thin-wall linings, the problem that part deformation is too large due to an existing machining method is solved, meanwhile, finish machining can be conducted on the outer circle through one-time clamping, fine boring is conducted on the inner hole, the processes are reduced, and the coaxiality of the inner circle and the outer circle of the part is ensured.

Description

Technical field [0001] The invention relates to a processing method of thin-walled parts, in particular to a finishing method and device of a two-half-tile thin-walled bushing. Background technique [0002] The two and a half-watt thin-walled bushings are installed in the bearing seat of the roughing mill transmission roll of the strip rolling mill to support the roughing mill work roll transmission shaft and adjust the angle of the transmission shaft, so as to provide precise driving power for the rolling mill. [0003] Such as figure 1 As shown, the outer circle of the two-half-watt thin-walled bushing part is a steel body, and the inner wall and both ends are bonded with babbitt alloy. After turning, the line cuts into two half-watts (such as figure 2 Shown). The inner and outer circle of the bushing requires a coaxiality of 0.05mm, and the inner circle roughness requires R a 1.6μm. Since the two half tiles are used in pairs, the two half tiles need to be processed in pairs du...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a finishing method and device for two-half-tile thin-walled bushings, and to solve the problems of excessive deformation of parts and non-concentric inner and outer circles after finishing the existing bushings question

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