Abstract:
PURPOSE: A three-axis ultra precision stage capable of being driven finely is provided to reduce the interference of each moving of the stage. CONSTITUTION: A three-axis ultra precision stage capable of being driven finely comprises a T-shaped bending body, a piezoelectric actuator, and a linear scale. The T-shaped bending body performs translational motions of x and y directions and rotational motion in a Θ direction. The piezoelectric actuator deforms the T-shaped bending body elastically. The linear scale measures displacement of linear direction.
Abstract:
PURPOSE: A stud bolt automatic measuring and correcting device for engine frame fixing is provided to improve quality and productivity of a vehicle frame assembly process by measuring and correcting a position of a stud bolt. CONSTITUTION: A stud bolt automatic measuring and correcting device for engine frame fixing comprises a working robot(10), a position measuring device, a position measuring device controller(30), a correcting device controller(50), and a correcting device(40). The working robot injects an engine chassis into a jig and draws the engine chassis from the jig. The position measuring device measures a position of a stud bolt of the engine chassis. The position measuring device controller transfers a position data of the stud bolt measured by the position measuring device to a main controller(20). The position measuring device controller controls sensor operation of the position measuring device. A main controller determines fault on the position of the stud bolt according to predetermined tolerance. The correcting device controller controls operation of a correcting device according to the data on the tolerance. The correcting device corrects the position of the stud bolt of the engine chassis in a tolerance range.
Abstract:
The present invention relates to a cutting tool error compensating tool. More specifically, the tool finely drives a piezoelectric driving device with only a cutting tool having relatively light mass and a tool holder by precisely measuring the accuracy of motion of an axial system; and compensates and controls in real time the errors in the motion during a super-precision cutting process. According to the present invention, the tool comprises: an error measuring unit which measures the errors during a cutting tool motion in a cutting process; and an error compensating stage which drives the cutting tool to compensate the error measured by the error measuring unit.
Abstract:
The present invention relates to a device to detect a lamella tearing using a non-contact ultrasonic wave and, more specifically, includes: a stage to fixate a test piece to detect a lamella tearing; more than at least one probe to emit a predetermined frequency of an ultrasonic wave onto the test piece while moving towards a predetermined shaft on the stage; a free amp to amplify the ultrasonic pulse emitted by the probe and the test piece penetrated, to a predetermined amplitude; a pulse receiver to receive the pulse signal amplified by the free amp; and a calculation unit to detect the lamella tearing by analyzing the received pulse signal.
Abstract:
PURPOSE: A system for correcting the error of a work machine spindle is provided to correct the error of a spindle by measuring the error of the spindle in real-time when the spindle is rotated. CONSTITUTION: A system for correcting the error of a work machine spindle comprises a rotation system, a transfer system, and a control unit (25). The rotation system has a displacement measurement sensor for measuring the error displacement of a spindle. The transfer system has actuators (32, 33, 34) for moving a tool holder. The control unit calculates the displacement correcting value of the tool holder according to the measured error displacement value and controls the operation of the actuators to move the tool holder. [Reference numerals] (24) Displacement detecting unit; (25) Control unit; (31) Actuator amplification unit