Concentricity measurement and adjustment restoration method for steel pipe hot extruding reamer

Abstract

The invention discloses a concentricity measurement and adjustment restoration method for a steel pipe hot extruding reamer. A reaming rod of the reamer is disassembled, and a connection thread at the bottom of a reaming beam, so as to take the center of the connection thread at the bottom of the reaming beam and the center of a bottom beam as the reference. A measurement steel wire is connected and set, and the concentricity deviation data of the upper and lower surfaces of an upsetting beam and the concentricity deviation data of the upper and lower surfaces of a reaming cylinder are respectively measured. According to the measured concentricity deviation data, the installation positions of the upsetting beam and the reaming cylinder are adjusted, and the concentricity deviation are adjusted and restored, thereby meeting the technical requirements. The method provided by the invention can measure and adjust the concentricity of related parts of an extruding machine simply and practically. Moreover, the method can recover the equipment function and precision, and reduces the production cost and spare part demands while meeting the requirements of production technology. The method is suitable for the field of concentricity measurement and adjustment restoration of various types of steel pipe hot extruding reamers.

Description

technical field [0001] The invention relates to a method for measuring and adjusting the accuracy of equipment, in particular to a method for measuring and adjusting the concentricity of a hot extrusion hole reaming machine for steel pipes. Background technique [0002] At present, various iron and steel production enterprises are producing a kind of high-end seamless steel pipe, such as: 690 seamless steel pipe for nuclear power, oil well pipe for oil drilling, etc. Ordinary steel pipes are relatively high, so their production needs to be produced by forging, reaming, extrusion and other processes in order to achieve the required mechanical properties, strength performance and precision indicators, and the current production of this high-end seamless steel pipe The main equipment - 25MN reaming machine, the reaming machine is the key process equipment in the steel pipe hot extrusion production process, mainly composed of reaming oil cylinder, upper beam, reaming beam, upset...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the problem of difficult detection of non-concentricity and difficult repair and adjustment under the existing technology, the present invention provides a concentricity measurement and adjustment and repair method of a steel pipe hot extrusion hole reaming machine. Through this method, it can be conveniently measured The concentricity of related parts of the reaming machine, adjustment and repair of the functional accuracy of the reaming machine equipment, to meet the requirements of the production process

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