A non-through-diameter beaded panel forming die and a beaded curved panel processing method

Abstract

The invention provides a non-through-diameter beaded plate forming die, which includes a die base for a die and a die base for a punch. At least two bead grooves are arranged on the die base, and the shape of the inner wall of the bead groove is the same as The shape of the outer wall of the processed bead matches; a punch is provided on the punch base, and the shape of the outer wall of the punch matches the shape of the inner wall of the bead to be processed; the punch is spliced ​​by several punch segments, and The punch segment is detachably fixed on the punch base; the two ends of the bead groove are provided with die end segments, and the position of the die end segment in the bead groove is adjustable. The non-through beaded plate forming mold of the present invention can adjust the length of the convex and concave dies by splicing the punch segments and adjusting the distance between the end segments of the die at both ends of the bead groove to meet the requirements of multiple strips of different sizes. The demand for one-time molding of the beading greatly expands the scope of use of the mold and avoids a large amount of investment in mold production design.

Description

technical field [0001] The invention belongs to the field of marine engineering manufacturing technology, and in particular relates to a non-through-diameter beaded plate forming die and a beaded curved plate processing method. Background technique [0002] A floating outer panel of marine engineering equipment is an arc-shaped closed structure, which is mainly composed of a large number of high-strength ribbed plates welded; it requires a high load-bearing capacity during use, and at the same time has strict control over its own weight, so low-alloy The high-strength thin plate is bent; in order to better meet the requirements of use, the bent plate needs to be ribbed to enhance its own strength and rigidity. [0003] In the past, the traditional processing method was to bend first, and then make a set of special ribbing molds to press the ribs on the bent parts. However, this special beading mold is often complicated in structure and high in maintenance costs, and a set o...

AI Technical Summary

Problems solved by technology

Since there are various specifications of bead length and spacing, it is necessary to design a mold separately for each specification of bead, and the number of molds is large, resulting in high mold manufacturing costs; secondly, in the process of multi-channel non-through bead beading, Due to the difference in material flow velocity at both ends of the bead, the weak part cannot be replenished by material inflow in time, and it is easy to produce compression cracks, which brings great difficulties to the processing and manufacturing of beaded parts.

[0005] In addition, the general shape of the reinforcing rib is a rectangular cylinder, which is not conducive to demoulding, and the position where the bottom of the rib meets the thin plate is prone to stress concentration, resulting in cracking

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