Mathematical Modeling and Modifying of Turntable’s Angle for 5/12 Automatic Numerical Controlling Bending Hoop Machine

Xiao Hong Zhang; Guo Fu Yin

doi:10.4028/www.scientific.net/AMR.189-193.1955

Paper Titles

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Study on Metal Flow in Continuous Extrusion Cladding of Cable Aluminum Sheath Using FEM Analysis
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Numerical Simulation of Polymer Flows in Coat-Hanger Die Using Wagner Constitutive Model
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Numerical Simulation of Effect of Slip Conditions on PVC Co-Rotating Twin-Screw Extrusion
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Mathematical Modeling and Modifying of Turntable’s Angle for 5/12 Automatic Numerical Controlling Bending Hoop Machine
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Research on the Stress and Strain Field and Wall Thickness in Power Spinning of Ellipsoidal Heads with Variable Thickness
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Contact Deformation and Abrasion Analysis of the Contact Region for Roller Linear Guide
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Research of New Type PAN-Based Carbon Fiber Pre-Oxidization Furnace and its Temperature Controlling Property
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Application of Digital Close Range Photogrammetry in Mechanical Three-Dimensional Modeling
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Mathematical Modeling and Modifying of Turntable’s Angle for 5/12 Automatic Numerical Controlling Bending Hoop Machine

Abstract:

Aiming at 5/12 full-automatic numerical control (NC) bending hoop machine, the paper analyzed the elastic-plastic bending deformation with the knowledge of elastic-plastic bending principle, theoretically mechanics and spring-back, and deduced the relationship of bending moment and curvature ratio, and built the mathematical model between bending hoop turntable’s rotation angle and stirrups angle considering the spring-back deformation. Then the different spring-back angles under two types of stirrups diameter, Φ=8 mm and Φ=10 mm, are measured. The mathematical model of turntable’s rotation angle and stirrup’s angle for 5/12 automatic NC bending hoop machine is modified according to the analysis of bending test data.