Spinning device and spinning method for improving flange forming quality of conical thin-walled rotary parts

Abstract

The invention discloses a rotary extrusion device for improving formation quality of convex edges of tapered thin-walled rotary components. The rotary extrusion device comprises rotary wheels, tight jacking rod and a tapered mandrel. The rotary extrusion device has the characteristics that a blank centering device is arranged on the tight jacking rod, the mandrel is coaxially sleeved with a convex edge platform, the convex edge platform faces towards the end face of a blank and is mutually perpendicular to the central axial line of the mandrel, and an axial position adjust mechanism is arranged between the convex edge platform and the mandrel. The rotary extrusion device has the advantages that due to the blank centering device is arranged on the tight jacking rod, the mandrel is coaxially sleeved with the convex edge platform, not only can the eccentric phenomenon generated in the clamping process of a circular panel blank be eliminated, but also a flat convex edge can be obtained just by one time processing (rotary extrusion formation) of the circular panel blank, the formation quality is good, the production cost is lowered, and the production efficiency is improved; in addition, due to the fact that the axial position adjust mechanism is arranged between the convex edge platform and the mandrel, the tapered thin-walled rotary components with the same taper, different height, and different convex edge width can be processed, so that the rotary extrusion device has good adaptability.

Description

technical field [0001] The invention relates to a spinning device for processing a conical thin-walled rotary part, in particular to a spinning device and a spinning method for improving the flange forming quality of a conical thin-walled rotary part. Background technique [0002] At present, the processing of conical thin-walled rotary parts with flat flanges is mainly through spinning of circular flat blanks. However, the processing of the traditional spinning device will result in low flange forming quality, such as: the flange is prone to inclination and wrinkling, and because the center of the circular flat blank deviates from the spindle of the machine tool after clamping, this will seriously Affects the roundness of the outer edge of the flange. Since the factors affecting the flange straightness are very complex, there is a nonlinear relationship with the process parameters such as the mandrel speed, the feed rate of the rotary wheel and the fillet radius of the rot...

AI Technical Summary

Problems solved by technology

However, the processing of the traditional spinning device will result in low flange forming quality, such as: the flange is prone to inclination and wrinkling, and because the center of the circular flat blank deviates from the spindle of the machine tool after clamping, this will seriously Affects the roundness of the outer edge of the flange

Since the factors affecting the flange straightness are very complex, there is a nonlinear relationship with the process parameters such as the mandrel speed, the feed rate of the rotary wheel and the fillet radius of the rotary wheel. Therefore, it is relatively difficult to obtain a straight flange by adjusting the process parameters. difficult

[0003] At present, in order to improve the straightness of the flange of the conical thin-walled rotary part, machining, double-roller clamping spinning and other methods are mainly used to perform secondary processing on the flange surface of the conical thin-walled rotary part after spinning. However, secondary processing not only increases production costs, but also reduces production efficiency

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