Virtual Development Of A Kind Of Lever-type Precision Shearing Die For Bar Stock

In the mechanical manufacturing industry,the first step is blanking.Quality of blanking will surely have a huge influence on the product quality,eligible rate and economic benefits.In order to improve blanking quality,compressed raw material consumption and reduce blanking costs,people is searching for more precise and efficient cutting method.This research study on a precision bar shearing die which is using the lever to achieve cut radial clamping,thereby obtaining a high precision shear plane with small distortion.This paper is based on some platform of computer-aided design software,combined with virtual prototyping technology which is widely used in manufac-turing,designing a lever-type precision shearing die.The main work and achievements of this paper are as follows :(1)bar clamp mechanism in the radial shear stress analysis,and radial clamping cutting function Principle.(2)carrying out the structure design of the shearing die,calculating the relevant process parameters,and drawing the assembly diagram of the shearing die.(3)use as a platform for Siemens NX shear modulus mechanical structure modeling and machine assembly.(4)using ANSYS Workbench to analyze the static stress analysis of the main parts of the shearing die.(5)the use of die stress analysis software DEFORM in the bar and cut molding process simulation cases,revise and improve the structural optimal parameters selected by the analog data it provides.This paper is working on virtual prototype technology for a lever-precision shear modulus virtual design,the use of CAE technology for the design shear modulus mold stress analysis,and by comparing the bar of deformation and fracture design parameters under different conditions,reverse further optimization of the structure of the mold or re-designed to provide a theoretical basis for the actual manufacturing prototypes and provide some reference for future related design.