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The Research Of High Efficiency Deep Hole Processing Technology

Posted on:2013-01-02Degree:MasterType:Thesis
Country:ChinaCandidate:Y LiFull Text:PDF
GTID:2211330374955701Subject:Mechanical Manufacturing and Automation
Abstract/Summary:PDF Full Text Request
Deep processing is an important branch of the machining, with the developmentof automation technology with the deep hole processing, high efficiency deep holeprocessing technology to improve production efficiency has a very important practicalsignificance. With the progress of modern CNC machine tool efficiency project iscontinuing, on the basis of the original SIED technology research, to carry outintegrated high efficiency deep-hole processing technology research has importantpractical significance.In this paper, the integrated high efficiency deep hole processing technology toachieve greater efficiency, quality assurance, increase efficiency and maximize theeffect of the deep-hole processing equipment.maximize. Currently, CNC deep-holemachine is moving in the direction of efficiency, precision, highly reliable, intelligent,modular development, the main goal is high efficiency.With the depth of the high efficiency deep hole processing technology,high-speed tool technology, and tool materials become urgent problem. With thedevelopment of new surface hardening process,adapting new super hard cutting toolmaterials, such as coating technology, to make our tool technology to meetinternational standards as soon as possible. Tool system using modular design group,functionality and modular design, supporting tools, arbor guide to optimize the designand configuration, the design and manufacture series, into a group of greatly improvethe design efficiency and shorten the work, aids the manufacturing cycle of themachin.In high efficiency deep-hole cutting speed and feed rate with a reasonablecompletion of processing, quality assurance, tool life. The choice of cuttingparameters depending on the material being processed material, pore size and holedepth to aperture ratio. Efficient deep hole machining feed amount can not be toosmall, otherwise, the chip strip, easy to plug the tool to break. The feed is generallychosen as0.01-0.1mm/rev, speed up to3000-12000rev/min, in order to optimizehigh-efficiency deep-hole machining parameter. Efficient deep hole machiningparameter optimization can not be generalized to require specific conditions to treat.The hydraulic parameters of the DF system design pumping debris and oil of twoshould be optimized to meet the requirements of high efficiency deep hole processing.The paper derived the DF structure fluid characteristic equation and improved nozzle structure. The workbench based on ANSYS software to analyze and compare theperformance of ordinary nozzles and improved after the nozzle, to verify theimproved nozzle can greatly improve chip removal capacity of the vacuum pumpingdebris device, thereby increasing the efficiency of deep-hole processing.Deep processing is processing in a closed or semi-closed state, the process isvery unstable, there are many unfavorable factors impact on the processing. Verydeep hole machining process real-time monitoring, identification of the abnormalstate of the process in a timely manner to change the cutting parameters, or take othermeasures (such as tool change) in order to troubleshoot. Necessary should be alert toavoid accidents. The extracted power and hydraulic characteristics of the process fordeep-hole work, as a monitoring signal, set up online real-time monitoring systembased on the DSP of the process of deep hole drilling tool wear and the state, whichincreased the efficiency of the deep-hole machining.
Keywords/Search Tags:high efficiency deep hole processing, vacuum pumping crumbs, parameter optimization, tool monitoring, finite element analysis
PDF Full Text Request
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