Machining lower die for corrugated bulkhead

Abstract

The invention discloses a machining lower die for a corrugated bulkhead. The machining lower die for the corrugated bulkhead comprises a lower die body with a V-shaped opening, the end of the V-shapedopening is provided with an arc-shaped groove of which the direction is consistent with the length direction of the lower die body, pin rollers are arranged in the arc-shaped groove, and the length direction of the pin rollers is consistent with the length direction of the lower die body. According to the machining lower die for the corrugated bulkhead, the pin rollers are adopted to replace an original edge mode at the edge, making contact with a corrugated bulkhead steel plate, of the V-shaped opening of the lower die body, original sliding friction is changed into rolling friction, the purpose of reducing friction force and scratches is achieved, the rework time is shortened, and secondary repairing and grinding are fundamentally eliminated.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a lower mold for processing grooved bulkheads. Background technique [0002] In the process of hull construction, due to the design and ship type requirements of some bulk carriers or oil tankers, the bulkheads of the cargo tanks are designed to be grooved. Shipyards generally use hydraulic presses to press the grooved bulkheads in pieces, and then splice them into a whole. In the process of pressing and processing the bulkhead, the mechanical damage of the bulkhead is relatively large, which will cause many negative effects on the appearance. The most important damage is the surface damage of the automatic weld and the damage caused by the scratch of the steel plate surface. Secondary repair and grinding are required, and a single part takes about 1.5 man-hours, which is time-consuming and labor-intensive. Contents of the invention [0003] The purpose of the present inv...

AI Technical Summary

Problems solved by technology

In the process of pressing the bulkhead, the mechanical damage of the bulkhead is relatively large, which will cause many negative effects on the appearance. The most important damage is the surface damage of the automatic weld and the damage caused by the scratch on the steel plate surface. Secondary repair and grinding are required, and a single part takes about 1.5 man-hours, which is time-consuming and labor-intensive

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