The accurate displacement orgnaization of drive of ultrasonic electric machinery

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  • source:DELENO CNC Machining
The movement with significant since of accurate displacement orgnaization carries out component, also be right machining complex error has element of compensatory of dynamic, static state. At present common accurate displacement orgnaization uses flexibility to be out of shape commonly, force of mechanical drive, electromagnetism and the pottery and porcelain that suppress report, electrostriction and magnetism are sent adjustable wait for means to come true, these methods have the characteristic of high frequency noise, great distance, high accuracy at the same time hard, some still requires the main transfer machinery among, the structure is complex, precision rises hard, put in the problem such as electromagnetism interference. To solve afore-mentioned problems, introduce brand-new drive -- ultrasonic electric machinery comes drive displacement orgnaization. Principle of ultrasonic electric machinery and structure are different from electric machinery of traditional electromagnetism type completely, did not circle block and magnetic field component, not be to pass electromagnetism interaction to deliver energy, realize the new-style electric machinery that Electromechanical energy changes by material of the pottery and porcelain that suppress report directly however, its structure is simple, have unit volume to give muscularity, answer function admirable wait for a characteristic. Orgnaization of displacement of ultrasonic electric machinery basically is mixed by electric machinery of control system, ultrasonic adherent the accurate slip composition that has attrition stuff. Controlling a system is to ultrasonic according to demand electric machinery provides source of high frequency power. Ultrasonic electric machinery is by body of the drive that suppress report and stretch vibration body is comprised, it is to use those who press electric pottery and porcelain to go against piezoelectric effect to become electric energy change mechanical energy directly, its job frequency is in commonly 20kHz above. Accurate slip basis needs actually can be linear slip or revolving stage coming back. Linear displacement orgnaization is by ultrasonic electric machinery suppress report brace up child in the attrition with workbench end panel maintains below pressure action beforehand piece contact, thrust of attrition of have the aid of moves workbench to move. Dislocation coming back moves the orgnaization is by ultrasonic electric machinery suppress report brace up child in the annular attrition with revolving stage coming back maintains below pressure action beforehand dish contact, whirligig of circular table of drive of force of attrition of have the aid of. Suppress report brace up child pressing attrition piece offer retentivity of a position to displacement orgnaization quadrature. The displacement orgnaization of drive of ultrasonic electric machinery can achieve very tall fixed position precision, linear model precision reachs level of 10 accept rice, precision of transition coming back reachs second level. Its journey is in theoretic it is infinite, concern with rigid structure only, can design the route of displacement orgnaization according to real need. Its sensitivity is tall, frequency answers lowest to be able to achieve 20kHz, namely responsive time is 50µs, do not have arrearage phenomenon basically, can answer in real time. The displacement orgnaization of drive of ultrasonic electric machinery has exceedingly good low speed to make the same score stability, the dynamic span of its speed is broad, can realize 10~250mm/s; Its structure is simple, have drive component and athletic part only, without complex transmission system; Easy with computer interface, deserve to use appropriate control system to orgnaization of this kinds of displacement, of machining error of nicety of usable Yu Chao move, static compensation, can regard the small feed of superprecision as the orgnaization, still can use at low speed big torsion to be not successive movement machine, robot to wait. CNC Milling