Self-adaptive control method for stability and roundness of radial and axial rolling process of super-large rings

Abstract

The invention provides an adaptive control method for the stability and roundness of the radial and axial rolling process of super-large rings, including: rolling ring stability control based on the fuzzy adjustment of the cone roll speed and rolling ring roundness based on guide force feedback control; this method is also based on the rolling ring stability control based on the fuzzy adjustment of the cone roll speed, the input ring center offset and the offset change rate are processed by the arithmetic mean filter method, and the cone roll speed adjustment is limited. . The self-adaptive control method for the stability and roundness of the radial and axial rolling process of super-large rings according to the present invention aims at the out-of-circle and unstable deformation states in the rolling process of super-large rings, and uses the conventional motion planning of radial and axial ring rolling equipment Based on control, a rolling stability control method based on conical roll speed limiting filter fuzzy adjustment is proposed, a rolling roundness control strategy based on guiding force feedback is formulated, and the rolling roundness and stability of ring rolling are controlled by real-time adjustment of roll motion. It can take into account the stability and roundness of the super-large ring rolling process.

Description

Adaptive control method for stability and roundness of super-large rings in radial and axial rolling process technical field The invention belongs to the field of ring rolling, be specifically related to a kind of super-large ring radial and axial rolling process stability and circularity Degree-adaptive control method. Background technique Ultra-large ring products, such as wind power bearings, tower flanges, nuclear power support rings, rocket transition rings, etc., are new energy It is a key main structural part widely used in aerospace equipment. The radial and axial rolling of the ring is the best way to manufacture high-performance super large Advanced technology for ring members. [0003] The principle of radial and axial rolling of the ring is shown in Figure 2. The measuring roller 8 keeps rotating and feeding against the outer surface of the ring to drive The moving roller 2 performs active rotational motion, the core roller 3 performs radial feed motion ...

AI Technical Summary

Problems solved by technology

[0004] However, the rolling forming process of super-large rings takes a long time, the geometric dimensions of the rings vary significantly, and the moment of inertia and stiffness conditions are exponentially changed relative to the initial ring blank. These characteristics make the roundness and stability of super-large ring rolling Sexual control poses great difficulties, often leading to ring terminations and fluctuations in product quality

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