Motion controls new technology

Steep drive system cancelled precision to wait for the transmission gap that mechanical orgnaization produces and error as a result of guide screw, reduced the tracking error that when interpolation moves, brings because of transmission system lag. Detect through linear position feedback control, can raise the fixed position precision of the machine tool greatly. 3) .

Move stiffness tall as a result of " of " direct drive, avoided to start, the because of intermediate transmission link flexibility when gearshift and inverting is out of shape, the athletic lag phenomenon that attrition wears away to be caused with backlash, also raised its drive stiffness at the same time. 4) .

Rate is rapid, add decelerate process weak point basically is used the earliest at train of magnetism in suspension as a result of linear electromotor (speed per hour can amount to 500Km/h) , use in drive of machine tool feed so, what should satisfy its to exceed high speed cutting is the biggest receive a rate (the requirement amounts to 60 ～ 100M/min or taller) do not have a problem of course. Also as a result of afore-mentioned " the high speed of 0 drive " answers a gender, make its add decelerate process to shorten greatly. The instant when starting in order to come true reachs high speed, when high speed moves, can stop definitely for an instant again. Can obtain taller acceleration, can amount to 2 ～ 10g commonly (G=9.

8m/s2) , and the biggest acceleration of drive of ball guide screw has 0 only commonly.

1 ～ 0.

5g. 5) .

Journey length is unlimited series is passed on slideway linear electric machinery, can extend its journey length indefinitely. 6) .

Motion moves quiet, noise low because cancelled the machinery of the component such as transmission guide screw,chafe, and slideway can use scroll guide again or magnetism pays suspension guide (inorganic instrument is contacted) , the noise when its move will be reduced greatly. 7) .

Efficiency is tall because do not have intermediate transmission link, eliminated the energy loss when mechanical attrition, transmission efficiency rises greatly. The development of steep drive electric machinery is rapidder and rapidder also, the trade is dominated in motion times mediumer suffer take seriously. The country that in foreign industry athletic control develops relatively already began promotion to use corresponding product, among them American division Er Morgan company (Kollmorgen) linear electric machinery and amplifier of servo of SERVOSTARCD set number make PLATINNMDDL series servo of a kind of typical linear permanent magnetism, the campaign do not have difference that it can provide very tall trends to answer peace of extremely speed and acceleration, tall stiffness, taller fixed position precision to slip; The silver on company of company of German Xi Menzi, aircraft of Japanese Mitsui essence, Taiwan also begins company of science and technology to be in its product use linear electric machinery. 4 but technology of controller of process designing computer from 20 centuries United States of 60 time end the first but program controller (ProgrammingLogicalController, PLC) since coming out, PLC controls the development course that the technique already had taken 30 years, mix as latter-day computer technology especially the development of microelectronics technology, it already was walked out of far in respect of soft hardware technology at the outset the rudiment phase of " of " sequence control. But controller of process designing computer (PCC) the new generation that develops a tendency on behalf of this namely can make up Cheng controller. Compare with traditional PLC photograph, the characteristic with the biggest PCC depends on it be similar to the design of the application software of the operating system of time-sharing much task of large computer and diversification. The logistic operation that the clock that traditional PLC uses only job mostly scans or monitoring program handles program itself dictates and external the condition of I/O passageway is collected with refresh. The " that handled means to bring about PLC directly so controls speed " to rely on the measurement that uses a program, undoubtedly the control of sex of high real time in be the same as I/O passageway asks to violate this one result. The systematic software of PCC solved this one problem faultlessly, it uses mechanism of time-sharing much task to build the moving platform of its application software, the cycle of run that uses a program so has nothing to do with program accident, decide by the total cycle time of the operating system however. From this, its scanning cycle applied process is the same as external control cycle is distinguished come, satisfied requirement of real time pilot. Of course, cycle of this kind of control can be below the premise that CPU operation ability allows, according to the effective demand of the user, random is revised. Be based on such operating system, the applied process of PCC is formed by much task module, the development that gives project project application software brings very big advantage. Because so OK ask according to the function that in controlling a project, differs partly each conveniently, if athletic control, data is collected, call the police, control of PID adjustment operation, communication, weave respectively a control program module (the task) , these module move independently already, definite mutual correlation maintains again between data, after these module pass cent to the independence of measure weaves and be debugged, in can downloading the CPU to PCC together, in much task operating system attemper manage next running paralell to move, realize the control of the project to ask jointly. The functional dominant position with powerful in industrial control PCC, reflected can make up Cheng controller and industrial control computer and DCS (distributed industry controls a system) the development tide with mutual and shirt-sleeve technology, although this still is a relatively young technology, but in its more and more application are gotten inside the country, it is showing the development potential that cannot underestimate increasingly. 5 motion control calorie of motion to control card is one kind is based on industrial PC, use at all sorts of motion to control a circumstance (include displacement, speed, acceleration to wait) on position control is unit. Because,its occurrence basically is: (1) wait for a requirement to satisfy the standardization of system of new-style numerical control, flexible, open sex; (2) in all sorts of industry equipment (wait like package machine, printing machine instrument) , national defence equips (if dog location system) , in the automation control system of the equipment such as device of intelligent medical treatment is developed and be being transformed, be badly in need of a motion controlling the hardware platform of module; (3) the PC wide application in all sorts of industry spots, also make the powerful function that provides corresponding control to get stuck to divide play PC in order to fill. Athletic control cartoon often uses professional sport to control chip or high speed DSP to control core as motion, use at controlling a pace to enter electric machinery or servo electric machinery mostly. Popularly, motion controls card and PC to form type of principal and subordinate to control a construction: The management that the PC is in charge of interactive interface and the job that command the respect such as real time monitoring of the system (for example of condition of the management of clavier and mouse, system show, athletic contrail program, control dictates send, the monitoring of exterior signal is waited a moment) ; Pilot of the control card campaign that finish is all detail (rise the output that comprises pulse and directional signal, automatically fall fast of the signal such as processing, origin and spacing detect etc) . Athletic control card deserves to open function library is in for the user below DOS or Windows system platform the control system that proper motion development, tectonic place wants. The athletic control check that consequently this kind of structure opens can apply at each domains of automation of the equipment in manufacturing industry widely. Mode of control of this kind of sport compares popularity in the control system in foreign automation equipment, motion controlled card to also form an independent technical industry, the motion such as the PMAC that has representative product to have the United States, PARKER controls card. In home corresponding product already also appeared, if Chengdu pace receives the DMC300 series check of Electromechanical limited company,apply successfully on a variety of automation equipment such as testing stand of function of assembly of numerical control hole puncher, car. The rapid development of technology of computer of 6 last words and microelectronics technology, driving industrial campaign to control a technology to progress ceaselessly, appeared technology of drive of system of drive of servo of communication of such as complete closed circuit, linear electric machinery, but a lot of advanced practical technologies such as card of control of controller of process designing computer, sport, provided efficient measure for development and equipment of production industry automation. The level of Electromechanical unifinication technology that this also is sure to make our country rises ceaselessly. CNC Milling CNC Machining