Summary: ? Elder brother screen 5 freedom spend the space that axis of Zheng of 4 Wan Huang Di, Y, Z3 moves point-blank and circles two axes of X, Z to turn electrochemistry exceeds accurate and abrade machine tool. Use this machine tool, can exceed accurate and abrade technology to undertake craft studies to electrochemistry, the light that realizes mould antrum makes treatment. The mould is producing main effect in each industrial domains, but the high accuracy that mould antrum light makes treatment and efficient the main factor that is development of influence mould industry all the time. The smooth whole processing technique of the mould affects the service life of the mould and product quality directly. Current, common mould light rectifies treatment to electrochemistry polish, mechanical and abrade polish and ultrasonic polish wait. Electrochemistry treatment is positive pole is used to dissolve optionally in electrolyte below electrify condition workpiece surface is microcosmic and rough medium bulgy part, make metallic surface becomes smooth the method of polish of a kind of surface that presents burnish. Machine a mould with this method model antrum, easy generation electroanalysises corrode stain, and the appearance of electrode must agree with mould antrum photograph. Because electrode produces horizontal limitation, pure electrochemical machining applies very hard at the smooth full treatment of the mould, especially this plants car automobile body the treatment of large mould. Mechanical and abrade be reach abrasive its additional agent Tu Yu or embed ongoing grinding work to provide apparently, below particular pressure function, have the aid of is mixed at sharpener by the opposite motion between abrade workpiece, from grinding work be grindinged apparently the metallic layer with paper-thin eliminate, make workpiece is obtained thereby extremely a kind of technique of high accuracy, but its treatment efficiency is inferior. Ultrasonic treatment is to use tool end panel to make supersonic vibration, of the in suspension in forcing working fluid grind bead to be bumped ceaselessly with very old rate and acceleration, cast grind by treatment surface, be smashed by the material of treatment workpiece surface very fine particle, hit from workpiece. Electrochemistry exceeds accurate and abrade technology is 3 kinds of afore-mentioned treatment methodological phase is complex. The cavitation effect that value and ultrasonic machine the high accuracy with the efficient, abrade machinery that the leveling effect that this kind of technology used stretch treatment better, electrochemistry machines and little face surface roughness. Our development developed the space that axis of implementation X, Y, Z3 moves point-blank and can circle two axes of X, Z to turn 5 freedom spend electrochemistry to exceed accurate and abrade machine tool. Use this machine tool, can exceed accurate and abrade technology to undertake craft studies to electrochemistry. The compositive electrochemistry of 1 machine tool exceeds accurate muller to the bed basically is offerred by machine tool main body, motivation and control a system 3 major composition. Part of machine tool main body basically includes bed body, workbench and working head: Motivation offers a part to basically include a pace to mix into generator of electromotor, ultrasonic, transducer electroanalysis power source: Control uses Xi Menzi SIMATIC S7-200 CPU214 PLC partly. The pace implements a part as into electromotor, driver of need and controller, power and load comprise a pace to take electromotor drive system together. Because the pace enters the function of electromotor to rely on form of drive of drive power source and power source voltage to wait greatly, because the function of this driver affects the specifications of whole system, stability and reliability directly, so driver is the key that the pace takes electromotor drive system. The HH series 445V8 that we used new technology of head office of Chinese arms industry to popularize an institute to make pace takes electromotor drive power supply. Ultrasonic generator uses Shaanxi fly amount to generator of the ACQ-600 that development of finite liability company manufactures ultrasonic technology ultrasonic. It used 20 centuries of Japanese the advanced technique of 90 time, used PLL frequency to dog automatically system, make the oscillation frequency of generator and transducer resonance frequency are achieved consistent, sufficient make a present of gives the power that makes generator is outputted transducer, improved electroacoustic changeover efficiency of the system effectively. Result put a system to use push-pull circuit, output square wave signal. Because transducer is the load that allow a gender, after so classics inductance is compensated, add in transducer the signal of two end is sine wave. Vibration is changed can the system suppresses report by with filling type transducer and get together parts of an apparatus is combined and can become, this system changes the supersonic frequency electric energy that comes from generator into supersonic frequency mechanical energy. Electroanalysis what power source uses is the HT-1711H dc regulated power supply that 10 factories make Shijiazhuang city radio. What difficult implementation compares of 2 tools electrode in designing compound treatment is the design of tool electrode, what because used method of 3 kinds of treatment,electrochemistry exceeds accurate and abrade technology is compound, the design that brings about tool electrode thereby cannot use traditional design. The main shaft of tool electrode wants already can high speed rotates, want to serve as the cathode of electrochemical machining again, return the high frequency vibration that must satisfy supersonic treatment at the same time. Used the method of adscititious electrolyte for this, the equipment complexity that can avoid electrolyte to be brought in place of the flow inside tool electrode so, also avoided electrolyte to be opposite of tool electrode transmission caustic, in still solving electrolyte, mix have the block problem that grinds bead to make didymous tool head easily. Additional, transducer of piezoelectric effect ultrasonic needs constant tension, at the same time main shaft wants high speed to rotate again. The article used the electric current of type of carbon brush slip ring to conduct pattern, cover slip ring the sliding sleeve that makes in bakelite to go up, use between sliding sleeve and main shaft close cooperate, solved this one problem well, satisfy the feasibility that main shaft high speed rotates already, use two slip ring at the same time, carbon brush is with small bedspring impaction on slip ring, assured the dependability that electric current conducts and smooth stability again. Main shaft high speed rotates to work to produce certain quantity of heat with transducer, such is about that have come loose goodly shrinkage fitting buy, used cold pattern of wind of fluctuation both ends to come loose in the light of actual condition shrinkage fitting buy, added carbon fin of type of a small-sized annulus in the space of electromotor and main shaft joint namely, it employs aluminous capable person, weight is light, fixed in main shaft decide nut closely to go up, turn at the same time with main shaft. Such is in when main shaft job, it produced a small air current vortex in main shaft upper part, can better land sends out quantity of heat go out: Additional, cover in the main shaft of transducer and place of main shaft join on the hole that opened 12 rectangles, rotate in main shaft so when, with respect to meeting generation stronger air current flows, the quantity of heat that produces transducer well sends out go out. 1. Housing 2.
Main shaft 3.
Tool head 4.
Luffing lever 5.
Transducer 6.
Slip ring 7.
Medicinal powder hot fan 8.
Electromotor pursues sketch map of 1 tool electrode pursues the roll of main shaft of interface of division of staff of 2 craft sheet uses dc motive, can very change electromotor rotate speed and way conveniently. Used on electromotor and means of main shaft connective flexible axial means, when can avoiding to be started in electromotor so, to main shaft is the concussion of all. Tool electrode sketch map is shown 1 times like the graph. To get used to the treatment demand of surface of different pattern antrum, we designed head of electrode of 3 kinds of tools respectively on system of same main shaft, namely columnar disc type (underside is working surface) , pillar (flank is working surface) , columnar pellet head type. Tool electrode uses fine tooth threaded coupling is on luffing lever, can make sure the stability of ultrasonic is delivered. Tool head is used purificatory without spin cloth, its organize fiber and binder all fine, material is qualitative loose, flexibility is good, stomatic volume is large, because this casts the dip of fluid and abrasive to grinding,contain a gender tall, grind it is good to throw action, can reduce exterior surface roughness to be worth, can keep clear of tiny burr clean. The controls electrochemistry to exceed accurate and abrade machine tool workbench of 3 machine tools can realize the shift of X and Y axis and the roll that circle Z axis, tool head can realize the shift of Z axis to reach those who circle X axis to swing, at the same time tool head can circle oneself axes roll, all key-press that these motion want to go up through console undertake controlling. This machine tool used Xi Menzi SIMATIC S7-200 CPU214 PLC to undertake controlling, have a structure cabinet, traversal speed is reached high muti_function wait for character with multipurpose. Does the CPU214 of S7-200 look from whole have undermentioned 4 parts: ? Branny? of Ji Cong argon basically uses at receiving the control signal of the spot: Does ② output partial: ? ? of ⑵ of Wa of Ge of silk ribbon of Yan of child of ox of lotus root of Pu of Piao of eye of Φ of of of sulphur of fierce willful of smile of Chinese alligator of Su of ∈ of breed of Si of Tao Mei An ancienting name for a water catltrop uses at depositing user program: ④ processor: ? The core in Qia 7-200 system, it is controlling whole S7-200 system to do orderly work. Does processor carry out scanning program: periodicly? Nuo of lotus root of Pu of Piao of fine epiphysis of pine of Piao of Cong of Xing of of peptone of few of violet person mires Yun of few of dispatch of of the that prick mires of wooden tablets or slips for writing of the Ai that prick drips flatter deceive of whetstoning Bian of of of Xi of delay of H of sincere Ji takes an examination of Cong gizzard Jie of ⑵ of Wa of the Huaihe River of analyse ⑽ . The machine tool is commanding a respect, basically used personal computer and can make up Cheng controller two class control fashion. Going up a personal computer control is medium, with Visual Basic 5.
The 0 interface programs that wrote personal computer and PLC communication for platform, realized complete personal computer to control machine tool movement, achieved design requirement. To correspond with PLC better, weak to craft flow had an authorized strength, its job interface is shown 2 times like the graph. The electrochemistry that we develop 4 epilogue exceeds accurate and abrade machine tool, completely contented electrochemistry exceeds the craft requirement of accurate and abrade technology. This technology makes treatment start for the efficient light of the mould a relatively efficient way. CNC Milling