Hydraulic stretch forming machine for saxophone elbow semicircular tube wall

Abstract

The invention relates to a hydraulic stretch forming machine for a saxophone elbow semicircular tube wall. The hydraulic stretch forming machine comprises a machine body, work platforms, guide posts, a cylinder seat, a lifting hydraulic cylinder and a movable platform; the hydraulic cylinder is fixed above the work platforms through the cylinder seat; a cylinder rod of the hydraulic cylinder is fixedly provided with the movable platform; the movable platform is arranged on the guide posts in an oriented way; lower dies are fixedly arranged on the upper surfaces of the work platforms; upper dies are arranged on the lower surface of the movable platform, wherein the work platforms are fixed on the upper part of the machine body through supports; each lower die consists of a foundation and a semicircular reducing bent male die; the outer edge of the foundation is slightly larger than that of the male die so as to form an extrusion platform; a material loading plate is arranged at the periphery of each lower die and is arranged on a spring seat through supports; and each spring seat is arranged on each work platform; and the lower surface of each upper die is provided with a semicircular reducing bent female die. By ingeniously designed matching of the upper dies and the lower dies, the elbow semicircular tube wall can be formed and excess stock can be cut and processed, so that the working efficiency can be effectively improved and labor intensity is reduced.

Description

technical field [0001] The invention relates to the field of musical instrument processing devices, in particular to a saxophone elbow semicircular pipe wall hydraulic stretch forming machine. Background technique [0002] In the processing of saxophone, the processing of elbow is an important step. Existing elbows are all formed by butt welding of two arc-shaped curved semicircular pipe walls that are symmetrical to each other, and a complete arc-shaped elbow is formed after welding. The semi-circular pipe wall is formed by stretching the copper plate through a hydraulic press. Since the semicircular pipe wall is made of square copper plate raw materials, after being stretched and formed by a hydraulic press, it is necessary to use a saw blade to cut off the remaining material around it. It can be seen that the existing processing of the semicircular pipe wall of the elbow has the disadvantages of irregular cutting edge of the semicircular pipe wall, many processes, and l...

AI Technical Summary

Problems solved by technology

It can be seen that the existing semicircular pipe wall processing of the elbow has the disadvantages of irregular cutting edges, many procedures, and low processing efficiency.

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