Study On Digitization Designs Technology Of BW60HS Horizontal Processing Center

ONE: Introduction The numerical control technology is now the most core technology of advancedmanufacture technology. Now the various countries manufacturing industry widelyuses the advanced numerical control technology, in order to impress themanufacturing capacity and the level, and enhances to the dynamic changeablemarket adaptiveness and the competitive ability. In the world developed countriesalso list the numerical control technology and the numerical control equipment asthe national strategic resources. With the computer technology high speeddevelopment and the popularization, it is facing intellectualized and integrated,development today in the modern manufacture system.Developing the independentnumerical control technological breakthrough developed country vigorously to ourcountry's technical blockade, thoroughly studies the new generation of numericalcontrol technology to have the important practical value and the strategic sense.This topic main research content is in SMTCL-BW to the BW60HS horizontal typehigh speed processing design foundation into entire machine carries on thedigitized design simulation and dynamics simulation, obtains the feasible enginebed design proposal.Two: Digitized modelling design of BW60HS horizontal processing centerModern computer aided design take the mechanical industry CAD applicationas the core, realizeing the machine design automation essential technology.According to BW60HS horizontal processing center unique feature,we maydivide it primarily the axle-box, the slippery pillow, the column, the work table andthe lathe bed and so on . The entire processing center modelling process sequenceis from bottow to top way to carry on, first of all completes each componentsaccording to the components two-dimensional blueprint the three dimensionalhypothesized modelling, then composes the components model each majorcomponent model, finally carries on the part model the hypothesized assembly,completes the entire processing center the hypothesized assembly model.Chart 1 described the the entire processing center assembly completesAccording to processes the central hypothesized modelling level relations, afterestablishes the model.We carries on the static state and the dynamic interferenceexamination to the model, according to examines the result to carry on the revisionto the model existence interference place, caused the model to avoid theinterference question.Three: Machine tools dynamics analysis theoryThe machine tools dynamics analysis mostly uses the finite element method.As we carries on dynamics analysis to the machine tools, the goal is obtains themachine tools part and the entire machine dynamic characteristic parameter, likethe natural vibration frequency, the power response displacement and the noisetarget and so on, then carry on the dynamic optimization to it, enable the machinetools which designs to have the good dynamic performance, causes workabilitywhich it can display should have.The modal analysis technology in the machine tools dynamic analysisapplication process is: First divides the machine tools certain stature structure likeslippery pillows, the column, the lathe bed and so on, to various stature structureestablishment simultaneous differential equation, through the coordinatetransformation and the modality computation analysis, solves each part to move theflexibility and the power response and so on. Then acts according to betweenvarious stature structure the strength equilibrium condition and the displacementcondition is comprehensive each sub-structure modality characteristic, obtains theoverall construction characteristic. The findings indicated that, in the sub-structurethe dynamic characteristic quite bad part is also big to the engine bed entiremachine dynamic characteristic shape sound. Moreover, connects the part therigidity and the parameter estimation also is affects the engine bed overallconstruction characteristic analysis and the computation precision primary factor.Dynamics analysis method are very much, such as transmission matrixtechnique, experimental modal and mixing method. This topic uses the finiteelement method to carry on dynamics analysis.Four: Dynamic characteristic simulation analysis of BW60HS horizontalprocessing center's bedWith finite element analysis software(ANSYS) we have analysis the staticstate and dynamic. Before analyzing, first modifying the model in the Pro/Engineerthe suitable revision, then seamless input the model to the ANSYS software in. Inthe static analysis, this article has analyzed the lathe bed in the static state is thestress distortion situation.Chart 2:BW60HS horizontal processing center's bed static distortion analysisresultThis article has analyzed the lathe bed first 12 steps natural frequency andlathe bed host inspiringSteps 1 2 3 4 5 6 7 8 9 10 11 12Frequency(Hz) 159.96 298.88 416.26 565.78 639.82 659.79 722.25 781.86 786.90 813.66 828.37 894.37According to analyzes the result, proposed the further improvement measure.Five: conclusion(1)Compares with the traditional two-dimensional design method, thethree-dimensional virtual design has the much superiority. In the computer, weestablish part virtual model according to the machine tools actual size, andcompletes the virtual assembly, at the same time completes the machine toolsinterference examination under the virtual environment, in the machine toolsdesign stage may discover ahead of time in the design exists question, appraisaldesign proposal rationality and estimate engine bed performance. The threedimensional hypothesized design can reduce greatly the engine bed developmentcycle, reduces the design investment, reduces the cost.(2)Using the machine tools principle of dynamics, through the machinetools big-ticket item dynamics analysis, we obtains various parts the dynamicperformance parameter, such as parameter and vibration frequency, according tothe machine tools dynamic optimization design method to the engine bed lathe bedcolumn big item.We proposed enhanced the machine tools dynamic performance,guaranteed the machine tools moves the rigidity and the processing precisionoptimized measure.(3)In the paper, using the digitized virtual design theory and the machinetools dynamic design method and not only are suitable for the machine toolsresearch, but other mechanical system design processes may use the similarmentality and the method.It may promote to in other each kind of complexstructure mechanical system development research, therefore this article researchtechnique and the conclusion have the widespread project significance。...