Springback compensation device for spinning machine core mold

Abstract

The invention relates to the field of spinning forming equipment, in particular to a springback compensation device for a spinning machine core mold. The springback compensation device comprises a rotation shaft and a framework, a working disc is arranged at the end of the rotation shaft, the framework is formed by a plurality of forming rods in an enclosing mode, one end of each forming rod is hinged to the edge of the working disc, and the separation distances between the forming rods and the rotation shaft are gradually increased from the direction of being close to the working disc to thedirection of being far away from the working disc; a sliding sleeve capable of moving in the axial direction of the rotation shaft is arranged on the rotation shaft, a plurality of supporting rods corresponding to the forming rods one to one are hinged to the sliding sleeve, and the supporting rods are hinged to the corresponding forming rods; and a plurality of forming rings which are coaxial tothe rotation shaft are arranged on the framework, each forming ring comprises a forming ring body and a plurality of rod sleeves which are sequentially distributed in the circumferential direction ofthe forming ring body, the rod sleeves are hinged to the forming ring bodies and correspond to the forming rods one to one, and the forming rods penetrate through the corresponding rod sleeves. According to the springback compensation device for the spinning machine core mold, the springback of a tapered product can be compensated, and then the final size of the tapered product meets the requirements.

Description

technical field [0001] The invention relates to the field of spinning forming equipment, in particular to a rebound compensation device for a spinning core mold. Background technique [0002] Spinning is a metal plastic forming technology, which has the characteristics of small material loss, simple process, and easy production, especially when forming conical products. Most of the existing spinning machines clamp the flat blank between the mandrel and the mandrel, and the mandrel is driven by the main shaft of the machine tool. When the blank rotates with the mandrel, the blank is pressed by the rotary wheel to produce a partial plastic deformation. Under the joint action of the feed motion of the rotary wheel and the rotation motion of the blank, the local plastic deformation is gradually extended to the entire surface of the blank, and it is closely attached to the mandrel to complete the spinning process of the blank. The springback of tapered products after spinning g...

AI Technical Summary

Problems solved by technology

The springback of tapered products after spinning generally has the problem that the final size is too large

[0003] China Patent Authorization Announcement No. CN 202803825 U, the date of the authorized announcement is 2013.03.20, the title is "Spinning Rebound and Profile Automatic Detection System for CNC Dieless Spinning Equipment", which discloses a system that can accurately monitor A system for feature information such as part profile and springback during the spinning process, but this device still cannot solve the problem that the final size of the tapered product after spinning is too large due to springback

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