Novel calendaring tool of barrel-shaped workpiece

Abstract

The invention relates to a novel calendaring tool of a barrel-shaped workpiece. A thrust bearing is arranged on a box body, a worm wheel and a rotary sleeve are exactly assembled and connected through a flat key, and a small-diameter part of the rotary sleeve is arranged in a central hole of the thrust bearing; meanwhile, a worm bar is exactly arranged on the box body so as to ensure that the worm bar and the worm wheel are exactly engaged, a large-diameter part of the rotary sleeve is provided with a radial bearing, and a box cover is simultaneously arranged and fixed with the box body together through bolts; and a ball plane support frame, a ball frame and balls are sequentially arranged in a big step hole of the rotary sleeve. When the calendaring tool works, a half-finished workpiece blank is put in the middle of a circle formed by a plurality of balls, a convex die is inserted into a middle hole of the blank, the convex die presses downwards by using an oil press machine or mechanical pressure so that the worm wheel drives the rotary sleeve to rotate together, and the rotary sleeve drives the balls to rotate around the outer circle of the workpiece through the ball frame on the rotary sleeve so as to realize the grinding effect to the workpiece.

Description

Technical field [0001] The invention relates to a rolling tool for barrel-shaped workpieces, in particular to a new type of barrel-shaped workpiece rolling tool. It belongs to the field of sheet metal technology. Background technique [0002] At present, the method of manufacturing barrel-shaped workpieces is: use sheet metal as the blank material of the workpiece, install a drawing die on a hydraulic or mechanical press, and stretch the metal sheet through the pressure of the hydraulic or mechanical press to form a barrel. For the workpiece, the drawing mold used in the above method has high requirements on materials and heat treatment, and the structure and manufacturing are relatively complicated. The technical strength of general small and medium-sized enterprises cannot be reached. Thin-walled workpieces are prone to cracking, wrinkling, straining on the surface of the workpiece, and other quality defects. Summary of the invention [0003] The purpose of the present inventi...

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Problems solved by technology

[0002] At present, the manufacturing method of the barrel-shaped workpiece is: use metal sheet as the blank material of the workpiece, install a stretching die on the hydraulic press or mechanical press, and stretch the metal sheet through the pressure of the hydraulic press or mechanical press to form a barrel shape. The workpiece, the drawing die used in the above method has high requirements for materials and heat treatment, and the structure and manufacture are also relatively complicated, which cannot be achieved by the technical strength of general small and medium-sized enterprises. Workpieces with thin wall thickness are prone to cracking, wrinkling, surface strain and other quality defects

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