Numerical control planer type machine tool movable beam planer and method for controlling horizontal state of movable beam of planer

Abstract

The invention discloses a numerical control planer type machine tool movable beam planer and a method for controlling the horizontal state of the planer. The planer comprises a left upright post, a right upright post, a fixed top beam and the movable beam, wherein the two ends of the movable beam are arranged on the left upright post and the right upright post through a ball screw motion assembly; each of the two ends of the top beam is provided with an independent servo motor; each servo motor drives a ball screw of the motion assembly below each servo motor; a pair of position feedback grating rulers is arranged on the inner side of each of the left upright post and the right upright post; the servo motor, the ball screw motion assembly and the position feedback grating ruler on the same side form a circular closed control unit; and the circular closed control units on the two sides are respectively connected with a numerical control system of a machine tool through data buses to form a fully-closed servo control system. The control method comprises the step of using the numerical control system of the numerical control planer type machine tool to control the circular closed control units on the two sides, so that the dynamic horizontal adjustment on the movable beam is performed. The planer is simple in structure, the horizontal degree of the movable beam can be adjusted in real time, each process can be automatically controlled, and the adjusting precision is high.

Description

technical field [0001] The invention belongs to the field of numerically controlled gantry machine tools, and relates to a moving beam type gantry of a numerically controlled gantry machine tool and a method for controlling the horizontal state of the moving beam. Background technique [0002] In recent years, with the rapid development of the equipment manufacturing industry, the demand for large and heavy machine tools has been increasing, including CNC beam-type gantry machine tools. At present, a difficult problem in the design of CNC moving beam gantry machine tools is: how to ensure that the moving beam of the CNC moving beam type gantry machine tool can always maintain a strict level during the up and down movement process and the left and right movement process of the spindle box on the moving beam state. [0003] Large-scale CNC moving beam gantry machine tools have a larger gantry span, a longer moving beam, and a heavier headstock on the moving beam. When the mo...

AI Technical Summary

Problems solved by technology

Practice has proved that this comprehensive measure will greatly increase the manufacturing difficulty and cost of high-precision CNC dynamic beam type gantry machine tools, and the effect is not ideal

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