Research Of Hammer Blow Energy Measurement And Analysis System

Counter-blow hammer is the oldest,the most common mechanical forging equipment, rely on under the effect of high pressure gas release of energy to drive, and under the hammer hung up on strike, high-speed collision, all kinds of metal plastic forming is the most practical method of forging,Of which 630KJ to die forging hammer as the main forging equipment of domestic large tonnage,for our country aerospace equipment construction provides a large number of supply, the key components of the hammer hammer rod, hammer head and die as a result of the long-term strength of large forging metal core component damaged frequently, from casting to hammer parts processing into finished products of the high cost, long period, the processing cycle in more than one year,630KJ nearly 60 tons of forging hammer hammer hammer rod, high cost, complicated processing cycle has become troubled forging hammer a core problem of the production department, for different forgings, need different blow elnergy, only rely on the experience of the blacksmith to determine the size of the force (hammer height and hit the sound), force is too large or too small will affect the quality of forging processing, but also reduce the service life of equipment, this is very detrimental to long running of the equipment.For hammer forging process, the energy is forging forming force and combat when necessary control parameter, the accuracy of the energy control is forging process quality control and equipment necessary for normal operation. In view of the traditional measuring test methods need to be decorated at the scene of a lot of instruments and equipment, can meet the test requirements of continuous production process. This topic in real project as the background, to the hammer blow can force parameters in the process of physical quantities as the research object, through the study of 630 KJ to die forging hammer, the working principle, structure form, two important parameters for forging hammer (acceleration and displacement), the mathematical model of the combat phase was designed with FPGA as the core at the same time, the high-speed AD sampling hit the stage hammer head acceleration, displacement, the change regularity of hammer head acceleration over time, will be hit in the process of physical quantities in the corresponding Sram, and real time through the USB2.0 interface to PC, for some functional and structural parameters are analyzed in quantity, and establish the acceleration, displacement and blow energy, a mathematical model to transform traditional for design and development of numerical control hammer forging hammer system, improve the whole performance to the die forging hammer and provides a theoretical basis for the parameter optimization, make the control system can achieve good control precision and performance measures.This topic with the FPGA as the core, is mainly responsible for data acquisition, data storage, and the upper machine communication and management, real-time multitasking control, the hammer force can parameters measurement system is mainly composed of FPGA and periphery of A/D, an Sram, USB chip. The PCB layout design integrated a complete piece of hardware, control chip based on FPGA data, the parameters for high-speed AD9226 acquisition circuit, high speed asynchronous memory IS61LV51216 as a data storage system, using USB control caip CY7C68013A as data transmission system, combining with the Verilog internally compilation of digital circuit, form a complete set of hardware acquisition measurement system.