Vertical ring rolling mill capable of realizing on-line measurement control

Abstract

The invention relates to a vertical ring rolling mill. The vertical ring rolling mill capable of realizing on-line measurement control comprises a rack, a rolling wheel mechanism, a measuring roll mechanism, a guide roll mechanism, a core roll mechanism and an unloading device. The vertical ring rolling mill is characterized by also comprising an on-line measurement control device; the on-line measurement control device comprises a displacement sensor group, a first displacement measurement sensor is arranged on a first elastic follow-up device of the measuring roll mechanism, and a second displacement measurement sensor is arranged on a slide block of the rolling wheel mechanism; and the measuring roll mechanism comprises the first elastic follow-up device, a measuring roll, a first push rod, a first bearing, a first shaft and a first bracket, wherein the measuring roll is fixed on the first shaft by the first bearing, the first shaft is fixed on the first bracket, the first bracket is fixed on the first push rod, and the first push rod is arranged on the first elastic follow-up device. The vertical ring rolling mill provides a condition for realizing on-line measurement control of outside diameter sizes of ring blanks, and has the advantages of manpower and material economization, high part molding precision, small post machining amount, low rejection rate and the like.

Description

technical field [0001] The invention relates to a vertical ring rolling machine. Background technique [0002] The vertical ring rolling machine is a common equipment for rolling and forming small and medium-sized rings. It belongs to radial rolling. The rolling principle is as follows: figure 1 shown. [0003] Before the traditional vertical ring rolling machine works, a standard ring is required to pre-set the position of the guide roller and the measuring roller. When working, first put the workpiece ring blank (ring blank) on the core roller, the core roller does not move, and the rolling wheel moves under the action of the cylinder pressure to realize the rolling feed, and the rolling wheel is driven by another horizontal motor at the same time Rotation; under the action of the rolling wheel and the core roller, the wall thickness of the ring gradually becomes thinner, and the diameter gradually increases. When the outer diameter of the ring increases to contact with ...

AI Technical Summary

Problems solved by technology

During the hot rolling process, the outer diameter of the ring blank increases sharply in a short time, and due to the limitations of the ring rolling machine structure, it is difficult to realize the real-time online measurement of the outer diameter of the ring blank during the ring rolling process, so it is impossible Realize online control

At present, there is no effective solution for the measurement and control of the vertical ring rolling process at home and abroad. Some people in China have proposed to use air pressure or hydraulic pressure to drive the slider to do linear feed motion, so that the guide roller can follow the movement, so as to ensure the smoothness of the ring blank during the rolling process. The center of the circle always moves along the center line between the rolling wheel and the core roll, but the guiding force of the guide roll and the movement rules of the guide roll cannot be controlled during the rolling process, so it is difficult to keep the center of the ring blank from shifting all the time. It is also difficult to measure the outer diameter of the ring blank on-line, which fails to achieve the purpose of on-line control, and the instability of air pressure and hydraulic pressure is difficult to ensure the accuracy of on-line control

Therefore, the production of the current vertical ring rolling machine is completely controlled by manual visual inspection, that is, during the rolling process, the rolling wheel is manually controlled to move down, and when it is observed that the ring blank touches the measuring roll, the rolling wheel is manually controlled Back, due to the many uncertain factors of manual visual control, the process is forced to adopt the countermeasures of large tolerance and large reserve, resulting in the disadvantages of low precision of forgings and large consumption of raw materials

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