Aligning and leveling method for main machine guide rails of sizing and reducing machine

Abstract

The invention provides an aligning and leveling method for main machine guide rails of a sizing and reducing machine. The longitudinal levelness error and the transverse relative levelness error of each of the first guide rail, the eighth guide rail and the fifteenth guide rail are measured firstly, the levelness calculation value and the needed gasket thickness are calculated, and the first guide rail, the eighth guide rail and the fifteenth guide rail are leveled; then the flatness error and the transverse relative levelness error of each of the first guide rail, the second guide rail, the third guide rail, the fourth guide rail, the fifth guide rail, the sixth guide rail, the seventh guide rail, the eighth guide rail, the ninth guide rail, the tenth guide rail, the eleventh guide rail, the twelfth guide rail, the thirteenth guide rail, the fourteenth guide rail and the fifteenth guide rail are measured, the levelness calculation value and the needed gasket thickness are calculated, and the second guide rail is positioned with the first guide rail serving as the benchmark; and afterwards, the left thirteen guide rails are positioned and fastened in sequence, gaps between the top faces of all the guide rails and the bottom face of a horizontal rule are measured one by one, and it is ensured that the flatness of the top faces of the guide rails is qualified. By means of the aligning and leveling method, the working efficiency of guide rail replacing, aligning and leveling can be improved, the working time is shortened to 16 hours from the original 64 hours, the requirement for fast-tempo production is met, and the assembling precision of the guide rails of a main machine C type seat of a sizing machine and the quality of steel pipe products are improved.

Description

Technical field [0001] The invention belongs to the field of mechanical equipment, and particularly relates to a method for aligning and leveling the guide rail of the main machine of a seamless pipe sizing and reducing machine. Background technique [0002] The 14 micro-tension sizing and reducing machine is one of the main deformation equipment on the φ177mm hot-rolled seamless steel pipe production line. It can reduce and sizing the waste pipe under the state of micro-tension, thereby obtaining finished steel pipes of various specifications. The roll frame of the micro-tension sizing and reducing machine is installed in the C-shaped seat of the sizing host. The C-type seat of the micro-tension sizing and reducing machine is equipped with guide rails and positioning plates, and the roll stand is equipped with main guide rail plates, side guide plates and positioning blocks. The roll stand is installed in the C-shaped seat of the sizing main machine, and the main guide rail pla...

AI Technical Summary

Problems solved by technology

Aligning and leveling the 15 guide rails requires 64 hours of continuous

Images