Design and Development of one Hydraulic Cylinder Driven Press Brake Bending Machine

Abstract

This paper discuses design and development of the most essential components of new feature press brake bending machine. In this study, the right angle lever design used to construct new developed one hydraulic cylinder driven press brake bending machine. In addition to this we develop three port double acting actuating cylinder for driving two lever mechanism of the machine. This cylinder both ends mount on lever effort arm point in horizontal direction. In case of press brake bending down ward bending force is needed, for that it needs a mechanism that convert horizontal direction force into a vertical down ward force. Right angle lever is perfectly satisfy this need, for that we develop two lever mechanisms that is at the right and left side of the machine for handling and converting the direction of both cylinder end forces. In this machine lever have a great roll in addition to converting the direction of force it used to maximize the input piston force. The remaining components of the machine is used to help the lever for achieving its application. All current hydraulic cylinder driven machineries uses only piston force for the purpose of drive its mechanism while cylinder force is lost on cylinder support without any function and it is the main cause for machine failure. The main objective of this paper is to develop new feature hydraulic press brake bending machine that solves the problem we observe from current hydraulic cylinder driven machineries. As a result the machine become light in weight low in cost, easy in maintenance and automatic in operation. The mechanical advantage of the mechanism is 6 times per one cylinder as compared with hydraulic cylinder driven machineries that available in the market. The maximum capacity of the machine is to bend 5mm thickness and 1250mm length AISI 1034 stainless steel sheet with a maximum bending force of 524725N. This maximum bending force is generated from 87454.16N piston force. The critical component of the machine is right angle lever, link, upper beam, lower beam, Machine table, machine frame, three port double acting actuating cylinder, , punch and die.

Study on Effects of Spring Back on Sheet Metal Bending Using Simulation Methods

“…[13] Commercially available in Finite element analysis in this software system employs in this bending moment analysis it. [14] Commercially available in Finite element analysis different aluminum alloyed materials different thickness and stressed and non-loaded condition was examined in materials deformation results on zones.…”