Drawing-Straightening Machine Clamping Mechanism Design And Analysis

Continuous extrusion method is a new technology for the production of copper bars,after drawing need straightening and cutting length, the extruded copper bars become finalindustrial products. Hydraulic drawing machine equipment also came into being has beenincreasingly widely used because its pulling force, speed, stability, and high precision,Hydraulic drawing machine with only function, drawing a single function, with stretch levelercopper bars scoliosis correction after the drawing completed, it will not only investment inequipment but also require a two-step process, companies need to pay more manpower andcosts, working hours and require a longer production time, production can′t be continuous,two gripping many deficiencies caused by waste more. With economic development, marketcompetition, labor costs increase in the actual production, how to increase productivity,improve material utilization and reduce labor costs is an important concern, and also apremise of technology application and development.Drawing-straightening machine is to add a straightening with Chuck to achieve on thebasis of the hydraulic drawing machine, drawing dies after drawing and straightening the twoprocesses into one purpose. The method has been applied for national invention patent（name:tensile straightening machine, application number:201110001107.4）In this paper,50tons of hydraulic drawing machine foundation design drawing-straightening machine production to meet the maximum cross-sectional area2000mm2copperrow and pull clamping mechanism-straightening machine, hydraulic cylinders and the jawpart of the design and analysis. The main innovations as follows:1.An aspect ratio of greater than40elongated hydraulic cylinder, we must consider thepiston rod weight to produce the deflection on the work of the hydraulic cylinder. In thispaper, the linkage equation and curve analysis methods to optimize the main parameters ofthe hydraulic cylinder. This method is similar to the hydraulic cylinder design provides auseful reference.2.Behavioral modeling as the basic method to establish the jaw, you can add and modifyjaw real movement can be observed in the dynamic simulation in Pro/e, and thecorresponding data and chart information is displayed. Pro/M platform for the analysis, theuse of finite element analysis to optimize the model structure, model design more reasonable.