Numerical control electrode machines breakdown of machine tool electrical system to handle a technology to discuss

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Summary: The development of electronic science and technology and automation technology, drove the development application of numerical control technology, it is a foundation with microprocessor, it is the equipment of numerical control Electromechanical of the mark with circuit of large scale integration, the progress that gives mechanical manufacturing industry created a condition, bring very great benefit. But at the same time, as a result of their advanced sex, complexity and tall intelligence characteristic, also caused breakdown to maintain the fall of technology and method. The electrical system that integrates numerical control electrode to machine a machine tool is common breakdown phenomenon, elaborate what electric breakdown maintains a technology to implement measure. Keyword: Numerical control electrode machines a machine tool; Electrical system; Breakdown analysis; Maintaining facility of technical numerical control is automation degree taller, the advanced treatment equipment with sophisticated structure, can reduce labor intensity of the worker not only, improvement produces an environment, promoted the development of modern industry, in the meantime, as the promotion application of modern technology equipment, the maintenance of mechanical equipment and overhaul problem, become contemporary lathe to machine the catholicity problem of the industry, in working practice procedure, enhance lathe to safeguard consciousness, exploration lathe technology is developed, it is the important step that modern industry innovation develops. Numerical control electrode processes the application of the machine tool, improved the crop of industry of black lead electrode and quality, obtained considerable economic benefits, but, the repeatability that machines as a result of lathe and lathe oneself bear the weight of the limitation of exercise intensity, electrical system of electrode treatment machine tool often appears breakdown, cause equipment breakdown, incur loss through delay manufacturing handling time, shortened the stability of the machine tool moves, lowered the service life of the machine tool. The article machined breakdown of machine tool electrical system to do development to discuss in the light of numerical control electrode, combine oneself electrical engineering practice, put forward technical defend overhaul method. The typical breakdown analysis of electrical system of machine tool of treatment of electrode of 1 numerical control is current, machine tool of treatment of numerical control electrode is electric those who control a system is compositive change rate very tall, in particular operation, common electrical system breakdown behaves as follows: 1) machine tool advocate power source breakdown, cannot append report normally. Indicator light of main control face plate often appears to shine when CNC Machining machine tool is being started, the operating system adds electric pushbutton, indicator light is bright also, but the instant goes out, the system adds the phenomenon that report fails. The reason is a machine tool advocate occurrence breakdown of power source oneself perhaps inputs output loop occurrence problem. Program of system of 2) numerical control cannot be written. Numerical control electrode machines a machine tool to be in use process, program of occurrence system of regular meeting of classics of numerical control system loses breakdown, and encounter the case that the program writes failure via regular meeting, the reason that causes this kind of trouble is very much, reflect normally in breakdown of memory power source or processor breakdown two respects, when the system appends report, punched tape machine gets ready, press 2 class Control Panel pushbutton, lamp of breakdown of memory power source does not go out, punched tape machine does not work, the program writes failure. Breakdown of ground connection of power supply cord of 3) machine tool. When breakdown of ground connection of machine tool occurrence power supply cord, incorporate is a machine tool each system preparation is good, by the loop the pushbutton that start begins to move automatically, but tripping operation of total air switch, its purpose is to be protection of leakage of electricity. Because electric machinery loop has ground connection to nod,breakdown of ground connection of power supply cord is commonly. Breakdown of crawl of main shaft of 4) machine tool. System of machine tool CNC Machining is system of a closed-loop control, running condition automatically to fall, when main shaft speed is 2400r/min, breakdown of main shaft occurrence crawl, the system appears call the police clew, in the meantime, speed of machine tool main shaft is extremely flabby calm. Breakdown of amplifier of servo of servo of 5) machine tool. Phenomenon of breakdown of amplifier of servo of system of machine tool numerical control reflects for: The system imposes electric condition, in hold decide after console runs preparative pushbutton to end, CNC does not have signal clew however, bring about a machine tool to stop to move, misfire. Machine tool of treatment of electrode of numerical control of processing of technology of breakdown of electrical system of machine tool of treatment of electrode of 2 numerical control can be divided for electrical system and system of mechanical hydraulic pressure two parts, among them electrical system includes numerical control system, logistic control system, servo, input to output loop to wait. When electrical system malfunctions, the person that maintain is not eager to blind disassembling electric component, the time that breakdown of electrical system of specific and should clear machine tool produces, process and specific phenomenon. When handling trouble, should anatomize and understanding breakdown phenomenon, find out the crucial place of the problem, ensure accurate and rapid ground removes problem. The Electromechanical with combinative old oneself maintains practice below, a few kinds of methods that machine maintenance of breakdown of machine tool electrical system in the light of numerical control electrode undertake elaborating: 1) observes diagnostic. After occurrence breakdown of machine tool electrical system, what should undertake whole go up to electrical system above all is preliminary diagnose, all sorts of switch set that attend through watching work station are correct, power source directive is normal, all sorts of join components have without become loose to fall off even phenomenal happening, as soon as possible discovers clearer problem, remove quickly the apparent exterior breakdown that electrical system appears. 2) system breaks a law oneself. The electrical system of treatment machine tool installs numerical control electrode to diagnose a program automatically of the system, belong to when electrical system breakdown from examine limits inside when, system will make relevant information automatically show from the indicator light of main control stage and controller face plate or digital monitor. Diagnose a code through searching corresponding breakdown, determine breakdown type position, according to diagnostic measure, resolve trouble stage by stage. 3) partition eliminates a doctrine. Divisional platoon division is to be below the case with electrical system complex breakdown commonly, distribute whole electrical system into a few large area, successive eliminates to do not have the part of breakdown, diagnose breakdown property again after clear breakdown has posture place finally. In process of processing of electrical system breakdown, divisional platoon division is a very effective method, help technology personnel determines breakdown position quickly and can remove trouble. 4) signal detects law. Generally speaking, the circuit in electrical system board go up, the architect detects to go to the lavatory later and set relevant volts d.c. to check a place, technical personnel detects necessarily through using the tool detects the relevant volts d.c. such as the voltage of departmental cent, electric current and resistor is worth electrical system, can diagnose a machine tool very quickly the breakdown of relevant power source such as the high load capacity that appears inside the system, short circuit, ground connection. 5) weaveform analyses a way. Detect about the sendout breakdown of electrical system, can use oscillograph or recorder to observe output is undee actually, use dc drive system, in black lead electrode treatment quality problem analyses a process in, pass undee to giving voltage analysis, the output voltage of definite electrical system is normal. 6) logic analyses a way. The development of modern science and technology, promoted system of Electromechanical numerical control the reliability of oneself, be aimed at the relevant breakdown that the system often appears, generally speaking can attribute a fault to outputs loop breakdown for the input. When the input outputs loop occurrence breakdown, technical personnel can use process designing implement the working status that checks each electric equipment component is true, decide breakdown is nodded thereby, remove breakdown issue in time. 7) spare parts changes law. After electrical system occurrence breakdown, in relevant spare parts more sufficient condition falls, can use change the method will decide what component damages, this kind of method is simple easy travel, more practical. For example the processor of AB7360CNC system is comprised by 10 module, when processor malfunctions, be being judged very hard sometimes is which module damage, spare parts through changing the module that very can fast fish damages. Shortened time of breakdown incur loss through delay. Law of 8) special processing. Current numerical control system already was entered open the development level that change, software of electrical system of relevant machine tool develops the exists objectively oneself blemish problem in moving, can bring about have no way of a little electric state of fault to analyse, to this kind of breakdown the phenomenon can adopt special method to handle, maintenance technician can explore effectively technical measure in the long-term practice in oneself. 3 last words control the ceaseless development of machine tool system as number, and of modern high-tech detect analyse an instrument use, numerical control electrode diagnoses a function of treatment machine tool oneself stronger and stronger, integrated a variety of breakdown processing techniques, electrode of dug numerical control machines the breakdown of machine tool electrical system to solve a technology, it is the need that stability of industry of contemporary electrode treatment admits. Accordingly, in procedure of electric maintenance practice, increase safeguard consciousness, enhance professional technical ability, explore electric technology development, reduce the happening of breakdown of machine tool electrical system, it is management of contemporary and electric equipment and the important step that maintain innovation development. CNC Milling