The introduction of system of numerical control of Xi Menzi 840D and application

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The introduction of system of numerical control of Xi Menzi 840D and 840D of applied Xi Menzi this is one of the most advanced systems in numerical control system, method of its process designing has bit of difference with other systems. Rotate commonly process designing and angle deflection follow other systems different, ROT RPL AROTRPL, the example of application and process designing is treatment is useful of a lot of, everybody must master this code. Example and the code that repeat a process, the use of REPEAT for instance: NO1AAA: G91 G01 X.

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N02 REPEAT AAA P5 NO3 M30 and can repeat use this program 5 times. More process designing still need to be in actual application oneself go fumbling, general blueprint, technology is very vital, oneself also should think how to just can install card to be able to finish many labor situation in, achieve optimal to machine the effect. In manufacturing industry modernization today, of production efficient ask to make with the high quality of the product machine tool of numerical control of a few high accuracy and emerge as the times require of system of high-powered numerical control, the issue that also makes a lot of general accuracy machine tool and conventional technology are solved hard at the same time becomes relatively a few simpler, make produce what efficiency and product quality also have very old rate to assure. The numerical control system of the drill of vitreous numerical control of my company used the SINUMERIK 840D system of Xi Menzi company, the product quality of the high accuracy in using a process and extremely low fault rate (basically depend on clear visible call the police information, make breakdown can eliminate quickly) won the client credit to this system. The structural introduction of actuator — machinery that system of Xi Menzi 840DSINUMERIK 840D and drive face below is as follows: The composition of structure of 1 equipment machinery: This equipment is used at vitreous bore to machine, if the graph is shown 1 times, whole machine adds the beam that has two parallel, two pairs get an axis to be installed respectively driving the fixed head that can control shift by 4 positions electric machinery, every fixed head parts by secure slide block of two when fluctuate in crossbeam linear slideway and fixed head join to be together, the left and right sides that gets a shaft is mobile by secure the M1 of positional electric machinery on fixed head, m2, m3, m4 drives direction of Y of the edge that get a shaft to control shift through gear rack. Every interior that gets a shaft is comprised by two electric machinery, the electric machinery that stands by broach (M7, m9, m11, m13) drives broach to rotate. The another electric machinery that gets a shaft (M6, m8, m10, m12) the guide screw nut that passes electric machinery interior deputy the whirligig changeover electric machinery rotor rises for axial fall motion, drive broach to make fluctuation feed move, namely Z to motion. When glass locates above all by X direction tabulator (this device was not drawn in the graph, its direction is perpendicular at paperbacked direction, the motion of device by drive of M5 of electric machinery of X direction position) push glass to exact position, each get direction of axial edge Y to move to proper place, head of run the drilling tool into the well rises, begin to get next plane of glass, get to the deepness of set, leave broach return, go up next broach drops get glass on planar, get to the go back after the deepness of set. This equipment can undertake machining to two aperture at the same time. Graph 1 rigid structure forms a plan systems of 2 numerical control of Xi Menzi 840DSINUMERIK 840D 2.

1 hardware part: SINUMERIK 840D uses special 3 CPU structure: Man-machine communication CPU, number controls CPU (NC-CPU) and but CPU of controller of process designing logic (PLC-CPU) . If the graph shows MMC-CPU 2 times to be inside OP012 man-machine interface, NC-CPU and PLC-CPU are compositive inside NCU572. System of numerical control of graph 2 840D is formed 2.

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1NCU number control unit is core with NCU572, power source module uses SIMODRIVER 611D, power source module basically is mixed for NCU 611D number drive provides control and dynamical power source, produce bus tension, monitor the condition of power source and module at the same time. There is 3 feeds module to be hanged through interface of drive bus line and NCU572 from the back receive, the interface signal of numerical control and drive is a number to measure, part drive the electric machinery of Y direction position of two pairs of broach (M1, m2, m3, m4) with M5 of electric machinery of X direction position. The transducer that at the same time NCU572 passes PROFIBUS spot bus line and OP012 man-machine interface, S7-300PLC and rotate speed of control electric machinery again joins together. 2.

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2Communication of man-machine of MMC man-machine communication is the channel that numerical control system and person have information communicates. Include: OP(Operation Panel) and MMC. 2.

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1OP(Operation Panel) of OP012 operation face plate is unit by 12.

1″TFT shows screen and clavier of a NC are comprised. Man-machine interface OP012 uses Windows 95 to regard an operation as platform, make an operation simple, agile, easy control. All sorts of produces data change in producing a course and the monitoring of all sorts of field data, on OP012 clarity is seen, its software content abounds a function powerful. 2.

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2MMC computer MMC is a computer actually. It has its independent CPU, still can take hard disk, take soft drive. OP unit is the monitor on this computer, and the control software of Xi Menzi MMC also is in this computer. 2.

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3What the PLC part of system of numerical control of PLC module SINUMERIK 840D uses is the software of Xi Menzi SIMATIC S7-300 and module. Its power source by power source of Xi Menzi SITOP (40A) offer, interface module IM361 is be used between class interrelate. It passes PROFIBUS spot bus line and NCU572 join. It is on the right side of IM361 for signal module, signal module is to be used at PLC to input / the module of output, have an input model with output model two kinds. Input module SM321 and output module SM322 namely. The CPU of the CPU of PLC and NC is compositive in NCU. The output signal of the input of all sorts of photoelectricity switch on equipment, journey switch and electromagnetism a powerful person, contactor parts to be linked together with input and output module, dominate the harmonious action of all sorts of exterior executive component. 2.

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Each other of 4 departmental split phase joins unit of NCU numerical control is the core of CNC control unit, actuating device of servo of module of power source of it and MMC, servo, feed and servo electric machinery join. This system uses full closed-loop control, servo electric machinery uses 1FK model inside buy coder electric machinery, regard the position as detecting element through coder of servo electric machinery, feedback positional signal to move module to digital drive (611D) positional interface X411, make system of full closed-loop control. Realized pair of vitreous bore aperture exact location control. Go up to ensure when bore those who play bit is homocentric degree (get head center coincide up and down namely) , the Y that moves in 4 positions electric machinery installed 4 journeys switch on direction, get reference point seat of the axis as 4. After opening machine power source, need has action of reference point restoration to getting a shaft each, the coder that gets a shaft to each namely assigns (the value of each coder when just opening power source all is 0. When undertaking reference point restoration, when getting an axis to run the place of journey switch, the value of coder becomes a system beforehand the value of the reference point of set) . When deviation of fluctuation broach occurrence position, still set error compensation inside systematic software, through adjusting compensation can very convenient correct error come over. 2.

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The place before part of 5 other hardware is like is narrated, each interior that get a shaft is comprised by two electric machinery, namely the whirl of broach and axial feed. The electric machinery of 4 axial feed is controlled respectively by transducer of 4 SIEMENS MASTERDRIVE MC (every get a shaft) , the control signal of transducer comes from NCU572, deliver through PROFIBUS spot bus line. 4 whirl that get a shaft the speed of electric machinery is controlled by transducer of a SIEMENS MM440, each electric machinery rotates start stop to part by respective contactor (between transducer and electric machinery) alone control. The control signal of transducer also is to come from NCU572, deliver through PROFIBUS spot bus line. The feed speed of broach is spent with rotate speed coming back all can be according to vitreous ply and craft condition inside MMC choice. Have in rear of feed electric machinery inside buy coder will measure broach feed depth. The origin that interior has origin photoelectricity switch to serve as broach (reference point) the position. 2.

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The join of system of 6 numerical control and PC because PLC-CPU and NC-CPU are compositive inside NCU572, when undertaking PLC and NC program are debugged, can join PC and NCU572, can undertake revise and be debugginged to the program. 2.

Parts of 2 software of Xi Menzi 840D: System of SINUMERIK 840D software includes 4 kinds of big software: MMC software system, NC software system, PLC software system and communication and drive interface software. 2.

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1MMC software system contains the hard disk of 10GB on MMC103 system, contain inside system of basic input, output (BIOS) , DR-DOS kernel operating system, Windows95 operating system, and string together a mouth, and the driver such as mouth, mouse and clavier interface, the mutual communication between the SINUMERIK that prop up and outside MMC-CPU, PLC-CPU, NC-CPU and task are harmonious. 2.

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2System of software of NC of NC software system includes following content: 2.

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1Nucleus of NCK numerical control is initiative guide software this software solidify is in EPROM. 2.

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2It includes system of software of control of number of nucleus of NCK numerical control the circular subsystem of machine data and standard, the user must understand the parameter meaning ability of every loop Cheng to undertake calling. 2.

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3Data of SINUMERIK 611D drive the relevant parameter that it is the system of drive of type of SIMODRIVE 611D number that shows form a complete set of place of system of SINUMERIK 840D numerical control is used. 2.

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3System of software of PLC of PLC software system includes PLC system to support software and PLC program. 2.

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1The CPU315-2DP that software of PLC system support installs inside system of numerical control of its support SINUMERIK 840D but the regular job of controller of process designing logic, this program solidify is inside NCU. 2.

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2It includes PLC program basic PLC program and user PLC program two parts. 2.

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The communication between the person that it basically uses 4 communication and drive interface software at coordinating PLC-CPU, NC-CPU and MMC-CPU3. 840DSINUMERIK 840D of Xi Menzi of 3 last words, it goes up in complex systematic platform, comfortable through systematic set at all sorts of control technologies. 840D and system of SINUMERIK_611 number drive and SIMATIC S7 can make up Cheng controller one case, compose controls a system into total number word, it applies on drill not just, apply in the system of device control character of machining equipment and all trades and professions however, system of numerical control of Xi Menzi 840D is current world system of relatively advanced control, its volume is minor, , the function is strong, programming is simple, safeguard convenient, the price is low wait for a characteristic, the times favour that accepts an user. The construction of system of the system that its digitlize completely, innovation, higher control quality, higher system resolution and shorter sampling time, ensured top-ranking workpiece quality. Also make it received wide application in the numerical control equipment of all trades and professions at the same time. CNC Milling CNC Machining