Pressure control device of large precise ring hot rolling pressure ring rolling machine

Abstract

The invention discloses a pressure control device of a large precise ring hot rolling pressure ring rolling machine. The device comprises a baseplate, and is characterized in that a concave cavity is formed in the middle section of the baseplate; a fixed base is fixedly mounted in the concave cavity; a guide rod is arranged above the fixed base; a support table is arranged above the guide rod; a lifting cylinder is arranged on the lower surface of the support table for controlling lifting of the support table; a stand column is arranged at the left end of the baseplate, and is hinged with a cross beam; and a fixed sleeve is arranged at the end part of the cross beam, and is buckled with the guide rod. The device can quickly and timely control the pressure magnitude of an extrusion roller through a sensor to prevent the extrusion deformation of rings so as to improve the product quality.

Description

technical field [0001] The invention relates to a device for processing large metal rings, in particular to a pressure control device for a hot-rolled pressure ring rolling machine for large precision rings. Background technique [0002] The ring rolling machine is the equipment that needs to be used to process workpieces with through holes. According to the frame form and the position of the ring parts, the ring rolling machine is divided into vertical ring rolling machine and bedroom ring rolling machine. For the convenience of operation, there is a Inclined vertical ring rolling machine. When the vertical ring rolling machine is used to increase and expand the hole of the ring, the ring on the core roller is driven to rotate together by the rotation of the main roll, so as to realize the increase and expansion of the hole. At present, when many rings are processed, the ring blank is set on the mandrel, and the support frame supporting the ring blank is fixed on the bed. ...

AI Technical Summary

Problems solved by technology

The demand for ring parts processing is large and there are many types. When changing the mold, the traditional method is to observe the positioning with the naked eye or measure with a simple tool, look at the height difference between the rib of the rolling wheel and the stripper plate, and look at the profiling position and thrust of the rolling wheel Whether the wheel and the signal wheel are aligned, these dimensions and accuracy have a great influence on the quality of the ring part. If the size deviation is large and the accuracy is low, the quality of the ring part will definitely not meet the process requirements, and the traditional method cannot record the size of the mold position. Follow-up It is necessary to readjust the mold position when producing again

[0003] In the prior art, in the process of ring rolling, it is easy to appear that due to excessive pressure, the ring rolling machine will squeeze and deform the ring during the processing process, resulting in unstable product quality

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