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

A planetary rolling mill, automatic calculation technology, applied in the direction of rolling, metal rolling, metal rolling, etc., can solve the problems of waste of raw materials and processing experiment costs, fluctuations in the wall thickness of copper pipe products, and reduce the yield of products, so as to reduce the rolling Control force, realize arbitrary adjustment and change, and improve the effect of export speed

Inactive Publication Date: 2007-10-31
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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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

Method used

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

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Embodiment Construction

[0020] Schematic diagram of each zone in the longitudinal section of a three-roll planetary rolling mill 3 , Roll deflection angle α and inclination angle β. In order to keep the diameter of the rolled piece at the flat zone III basically the same, it is necessary to find the semi-cone angle θ of the roll flat zone III 3 and the matching relationship between the roll deflection angle α and the inclination angle β, it can be seen that the semi-cone angle θ of the roll smoothing zone III 2 The computational design of has very high practical value.

[0021] Fig. 3 is a flow chart of the automatic calculation method of the roll profile. Since the rolls of the three-high planetary rolling mill have a certain inclination angle β and deflection angle α, the spatial geometric relationship is complex, so to accurately ensure that the roll smoothing zone III is parallel to the rolling line, it is necessary to use a reasonable and effective mathematical calculation method, and at the s...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B27/02
Inventor 李冰张光亮刘劲松张士宏朱士光张海渠张金利
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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