Structure Analysis & Optimization Of CNC Hydraulic Bender

The development trend of CNC bender, the present situation and the general design method of the forging machine are introduced in this paper, Taking a company's CNC bender as the object of this study, the static and dynamic characteristics of CNC bender are analyzed in ANSYS, which is a kind of general finite element analysis software. Frame structure has been optimized based on the analysis results.First, the static characteristic of the main part of CNC bender is analyzed. The finite element model of these part are established, the stress and the strain of every part is computed by ANSYS. Plan of redesigning of the structure is proposed based on the analysis.Second, the influences of the thickness of the side board and the Radius of curvature to the mechanical performance are analyzed by ANSYS. Appropriate parameters are selected to optimize the frame structure and the position of the compensatory cylinder.Third, modal analysis of frame is done to extract the first ten natural frequencies and modalities of the frame structure in Lanczos method.Finally, the nonlinear contact analysis method is used on the work table and slider, which can simulate strained condition in the working process of a bender dynamically. The analytical results provide reference basis for preceding analysis.Quality of the frame is reduced 9% in insurance of performance of the punch and low frequencies are increased based on the analysis. The quality of the product is improved, the cost is reduced and the enterprise competition is enhanced.