Dieless cold spinning one-step forming device and method for end enclosure

Abstract

The invention relates to a dieless cold spinning one-step forming device and a dieless cold spinning one-step forming method for an end enclosure. The spinning device consists of a main shaft, a hydraulic jacking shaft, a spinning roller, a forming roller and an arc adjusting arm. The lower end of the main shaft is supported on a base, the upper end of the main shaft is provided with a tray in clearance fit, the main shaft is mechanically connected with a driving motor, the hydraulic jacking shaft is vertically arranged on a frame top beam coaxial with the main shaft, and a circular plate blank is axially clamped between the hydraulic jacking shaft and the tray of the main shaft. The upper part of a frame side post is connected with a spinning roller transverse hydraulic arm, the upper end of the spinning roller transverse hydraulic arm is fixedly connected with the tail end of a spinning roller longitudinal hydraulic arm in a break angle mode, and the lower end of the spinning roller longitudinal hydraulic arm is connected with the spinning roller in clearance fit; and the middle part of the frame side post is connected with a forming roller hydraulic arm, the top of the forming roller hydraulic arm is connected with the forming roller in clearance fit, the lower end of the arc adjusting arm is connected with the base at the root of the main shaft in clearance fit, and the upper end of the arc adjusting arm is hinged with the forming roller hydraulic arm through a displacement mechanism driven by the driving motor. According to the device and the method, the deformation state is greatly improved, plate blank supporting is enhanced, a crease is prevented from stretching to the center of the plate blank, and the device plays a very important role in finally eliminating the crease. Under the action of mutual deformation force, the elastic deformation is greatly reduced, and the plastic deformation is increased, so that the total spinning pass is reduced.

Description

technical field [0001] The invention relates to a spinning device, in particular to a device and method for one-step forming of a head without tire by cold spinning. Background technique [0002] At present, the research and development of domestic spinning equipment has made great progress compared with the past, but high-precision CNC spinning equipment, especially large-scale CNC spinning machines that can process rotary parts such as heads, are still blank in China. However, a large number of parts in domestic military, fan, chemical equipment manufacturing and export processing enterprises need high-precision spinning, and the existing CNC spinning machines are formed in two steps. The drum is preformed and then flanged on the flanging machine, which requires two sets of equipment, and the process is complicated and the efficiency is low. Contents of the invention [0003] The invention aims at overcoming the disadvantages of the prior art, and provides a device and ...

AI Technical Summary

Problems solved by technology

However, a large number of parts in domestic military, fan, chemical equipment manufacturing and export processing enterprises need high-precision spinning, and the existing CNC spinning machines are formed in two steps. The drum is preformed and then flanged on the flanging machine, which requires two sets of equipment, and the process is complicated and the efficiency is low

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