Roller parameter automatic calculating method for three-roller planetary rolling mill

Abstract

The invention relates to a three high mill planetary rolling mill parameter automatic computation method. Along the profile of the roller in straight or arc lines, it goes into the latching zone, accumulated deformation zone, trimming zone, rounding zone, with the rolling piece shaft as the rolling line and being the overall coordinate, in which, single roller local coordinate being build and transferred to the overall coordinate, getting the overall coordinate rolling coordinate formula, using teeth formula, based on the said coordinate formula computing the roller line and the rolling piece, getting the half tapering angle of the trmming zone. It realizes automatic optimization design of the roller with simple operation, convenience.

Description

technical field [0001] The invention relates to a design method in the field of pressure processing machinery, in particular to a method for automatically calculating roll parameters of a three-roll planetary rolling mill. Background technique [0002] The rolls of the three-roll planetary rolling mill are pressure processing mechanical equipment used for rolling metal pipes. In use, when the deflection angle and inclination angle of the rolls change, the half-cone angle of the flattened area will also change accordingly, so that the rolled The wall thickness of the tube billet fluctuates, which reduces the yield of the product. In order to solve this problem, the roll type is generally designed by trial and error in the production process. The basic method is to pre-select a roll shape based on experience. If the half-cone angle of the flattened area cannot be guaranteed to be parallel to the rolling line, the wall thickness of the produced copper pipe products will fluctua...

AI Technical Summary

Problems solved by technology

[0002] The rolls of the three-roll planetary rolling mill are pressure processing mechanical equipment used for rolling metal pipes. In use, when the deflection angle and inclination angle of the rolls change, the half-cone angle of the flattened area will also change accordingly, so that the rolled The wall thickness of the tube billet fluctuates, which reduces the yield of the product. In order to solve this problem, the roll type is generally designed by trial and error in the production process. The basic method is to pre-select a roll shape based on experience. If the half-cone angle of the flattened area cannot be guaranteed to be parallel to the rolling line, the wall thickness of the produced copper pipe products will fluctuate greatly, so it is necessary to correct and adjust the half-cone angle of the flattened area of ​​the roll Until the wall thickness accuracy requirements of the product are met, this trial and error method will inevitably cause a lot of waste in raw materials and processing experiment costs

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