Efficient method for repairing rolling mill rack online and movable boring-milling machine

Abstract

The invention relates to an efficient method for repairing a rolling mill rack online. The method comprises the steps that firstly, a U-shaped base is prefabricated; secondly, the rolling mill rack is dismounted and measured; thirdly, a machine tool is installed below the machine; fourthly, the machine tool is arranged in place; fifthly, fine adjustment of the machine tool is carried out; and sixthly, machining is carried out. According to the method, the installing method is advanced, simple, convenient and feasible, the machine tool can be adjusted in advance without shutdown, and the online adjustment time is saved. The machine tool in-place manner is unique, the installing reference is a roller exchanging track, and precision is high. The machine tool can be directly conveyed to a preset portion through a roller exchanging trolley, and repeated guide-in operation of a traditional roller lever and a chain block is not needed. Safety is high, the mechanical degree is high, and labor intensity is low. The field dismounting amount is small, the installing amount is small, time is saved, and the project labor intensity is lowered. Two planes are machined through one-time alignment, the machining precision is high, and the depth of parallelism is not larger than 0.03 mm; and 360-degree rotary cutting can be achieved, and flexibility and convenience are achieved.

Description

technical field [0001] The invention relates to an online repair method for a rolling mill archway, in particular to a movable boring and milling machine for an efficient method for online repairing a rolling mill archway. Background technique [0002] The rolling mill arch, also known as the rolling mill frame, is an important bearing part in the rolling equipment, and the working environment is very harsh. During the rolling process of the slab, the rolling cooling water encounters the red-hot, high-temperature steel slab and rapidly atomizes, entraining high-temperature oxidized powder and splashing around. The rollers bring bearing housings to cause greater impact on the window surface of the frame. The gap between the rolling mill stand and the sliding surface of the bearing seat exceeds the management limit. Because of the particularity of the rolling mill archway, only online repair can be realized. The traditional online repair method is to use soil equipment to d...

AI Technical Summary

Problems solved by technology

The traditional online repair method is to use soil equipment to disassemble the rolling mill to expose the bottom plate, drag the machine tool into place with the help of roller bars and manual drag chains, and move it to the processing part. The diameter of the cutter head is small, the cutting efficiency is low, and the installation is in place. The time is long, and the precision of multiple alignment is low

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