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A position control system and method for the axial centering roll of a ring rolling mill

A control system, centering roll technology, applied in metal rolling and other directions

Active Publication Date: 2022-07-19
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is no method that can conveniently and accurately determine the position control of the axial centering roll in the ring rolling mill rolling process of the workpiece

Method used

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  • A position control system and method for the axial centering roll of a ring rolling mill
  • A position control system and method for the axial centering roll of a ring rolling mill
  • A position control system and method for the axial centering roll of a ring rolling mill

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Experimental program
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Effect test

Embodiment 1

[0048] This embodiment relates to a method for controlling the position of the axial centering roll during the rolling process of a ring rolling mill, see image 3 Shown: the method is used to limit the beating and swinging phenomenon of the annular forging during the rolling process of the ring rolling mill, reduce the offset force caused by asymmetric rolling and reduce the ovality of the annular forging, and the specific steps include:

[0049] Step 100, obtain the initial data B of the horizontal distance from the rear end face of the starting point of the axial tapered roll to the outer circle of the main roll and the distance F between the outer diameter detection device and the maximum outer diameter of the axial tapered roll;

[0050] In step 200, the initial data of the center of the starting point of the axial centering roller is obtained. The initial data of the center of the starting point of the axial centering roller is the horizontal distance V between the cente...

Embodiment 2

[0071] The axial centering roller device involved in this embodiment has a displacement sensor, and the axial centering roller device feeds back its feed data through the displacement sensor.

[0072] In the above embodiment, when the feed of the axial centering roller device is obtained, the feed amount of the axial centering roller device is measured by the displacement sensor in the axial centering roller device, and the displacement sensor finally measures the measured value. Feed data is fed back to the axial centering roll position control system of the ring mill. The axial centering roll position control system of the ring rolling mill finally adjusts the real-time feed stroke of the axial centering roll of the ring rolling mill according to the comparison between the feed amount feedback data and the target data.

Embodiment 3

[0074] The axial centering roller position control involved in this embodiment is to control the centering roller feed position data through the hydraulic servo control system according to the displacement sensor measurement and feedback of the feed amount data.

[0075] In the above embodiment, the hydraulic servo control system controls the displacement feed amount of the axial centering roller by comparing the feedback data of the axial centering roller displacement sensor with the target data.

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Abstract

The invention provides a position control system and method for an axial centering roll of a ring rolling mill; the system comprises: a processing unit and a signal receiving module; the signal receiving module is used for transmitting received data to the processing unit; The processing unit is used for acquiring the data of the signal receiving module and running the computer program. The present invention also relates to a control method of the aforementioned system. During the rolling process of the annular forging in the present invention, the real-time distance between the current position of the axial tapered roll and the minimum starting position of the axial tapered roll and the real-time distance between the outer diameter detection device and the outer diameter of the annular forging can be accurately calculated. The real-time stroke of the center roll, and the position of the axial centering roll is controlled by the hydraulic servo control system; during the rolling process of the ring forging, the beating and swinging phenomenon of the ring forging is limited, the offset force caused by asymmetric rolling is reduced, and the ring is reduced. The ovality of the forgings provides the basis for the real-time diameter detection and roundness of the annular forgings, and provides the basis for the smooth rolling process.

Description

technical field [0001] The invention belongs to the field of metal rolling; in particular, it relates to a position control system and method for an axial centering roll of a ring rolling mill. Background technique [0002] During the rolling process of the ring forging, the local force is applied and the contact area is asymmetrical, which is prone to violent beating and swinging, and causes the ring forging to generate offset force, resulting in serious deformation of the geometric size of the ring forging during rolling. [0003] In order to control the beating and swinging phenomenon in the rolling process of ring forgings, reduce the offset force caused by asymmetric rolling and round the ring forgings, a centering roll system is added. The centering roller is in contact with the annular forging and driven to rotate under the action of friction. As the diameter of the annular forging expands, the centering roller moves backward under the action of the hydraulic cylinde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21H1/06
CPCB21H1/06
Inventor 曹文胜付永涛柴星张宗元王斌
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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