Opposite roller spin forming device

Abstract

The invention discloses an opposite roller spin forming device which comprises a frame, an outer spinning roller device and an inner spinning roller device. One end of a flange supporting cylinder is connected with a chuck, the other end of the flange supporting cylinder is fixed to an opposite roller top end, the opposite roller top end is connected with a bearing block, rear bearings are arranged at the center of the bearing block, the rear end of a lead screw is fixed to the rear bearings and connected with a first servo motor, the lead screw penetrates the opposite roller top end and the flange supporting cylinder, the front end of the lead screw is connected with three wedge blocks through lead screw nuts, inner spinning rollers are mounted on inner clamping jaws through bearings, the inner clamping jaws are connected with the wedge blocks, the three wedge blocks are uniformly distributed in T-shaped guide-track grooves in a 120-degree manner, an oblique angle is formed between each guide-track groove and the axis of the corresponding wedge block, the inner clamping jaws are provided with T-shaped sliders with oblique planes having the same angle, and three outer spinning rollers are positioned on the peripheries of the three inner spinning rollers. The opposite roller spin forming device is simple and reliable in structure and high in control precision and machined workpiece quality.

Description

technical field [0001] The invention relates to a powerful spinning device, in particular to a counter-wheel spinning forming device, which is an improvement on the traditional spinning device. technical background [0002] At present, in the powerful spinning process of cylindrical parts, it is necessary to design a mandrel with a corresponding size according to the inner diameter of the workpiece, and then put the blank on the mandrel, and the blank is plastically deformed under the action of the spinning wheel. This traditional spinning device not only needs to design a special mandrel for each workpiece, which increases production costs and reduces production efficiency, but also causes uneven deformation of the inner and outer surfaces of the workpiece, forming a large residual stress, which affects The precision of the workpiece. Contents of the invention [0003] In order to overcome the disadvantages of poor adaptability of the mandrel to the workpiece and uneven ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the poor adaptability of the mandrel to the workpiece in the existing spinning device and the uneven deformation of the inner and outer surfaces of the spinning parts, the purpose of the present invention is to provide a method that does not require a mandrel and can improve the inner and outer surfaces of the spinning parts at the same time. Precision Spinning Device

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