Research On Hit Energy Of Hydraulic Forging Hammer Using Virtual Prototyping Technology

Virtual prototyping technology is applied widely in China. The virtual prototype is virtual realization of physical prototype in the computer implementation. It is a comprehensive development and application in the manufacturing area based on the computer simulation and virtual reality technology. It is a kind of new manufacturing concept which based on the enterprise information integration. At the same time, forging process occupies a pivotal position in the industrial production and is widely used in equipment manufacturing sector. A country's forging capacity level of its process has an immeasurable infection on its industry, agriculture, national defense and the Science and Technology.This paper researched how to control the hydraulic die forging hammer hitting energy precisely. The development status and trend of forging hammer are introduced detailing. The hitting energy mathematical model of hydraulic die forging hammer is found combined with the hydraulic die forging hammer structure and working principle. At the same time, the three-dimensional modeling of hydraulic die forging hammer is found which based on the virtual prototyping technology used in the analysis of mechanical systems and its movement situation has a in-depth study.This paper has researched the hydraulic die forging hammer hitting energy based on VPT, which primarily include the following two aspects:(1) Hydraulic forging hammer hitting energy modelThe hydraulic forging hammer hitting energy is an important parameter, which not only is the main performance parameters to achieve mechanical design, but also is the key of hydraulic control system selection. According to the law of conservation of energy and combined with the general principles of dynamics, the mathematical model of hydraulic forging hammer hitting energy is established. The working condition has an experimental analysis based on the hitting energy model. This model has important role on the program control of the hydraulic forging hammer hitting energy. (2) Dynamic simulation of hydraulic forging hammer virtual prototypeWith the development of computer technology, the virtual prototype test method is widely used in addition to physical prototype and model tests in the research methods. This paper describes the virtual prototyping technology and the three-dimensional mechanical model of hydraulic die forging hammer is established. On this basis, their movement situation has a detailed study. The introduction of this method changed the traditional design and manufacture methods of forging hammer. The advantages not only can design the prototype to meet the practical requirements more precisely, and also set the parameters, such as the hitting number, exercise frequency and return height, to meet the specific hitting energy requirements of different forging piece. It provides a reliable basis for pre-selection of hitting energy and an important reference for the next step to achieve precise controlled of hitting energy.This paper has established the motion model and simulated according to the working principle of hydraulic forging hammer. These relationship curves, such as the displacement, velocity and hitting energy, were got by the analysis of hydraulic forging hammer running process, which provide a theoretical basis for the actual work to set the hitting energy size and hitting number. At the same time, the precise controlled of hitting energy can avoid the unnecessary hitting energy program and provide a direct basis for the device to programmed controlled. It is achieved energy saving, which is expected to greatly improve the working and energy using efficiency.