Precision parts processing CNC machine tools

Abstract

The invention discloses a CNC machine tool for processing precision parts, which includes a workbench, an electrical box, two machine tool mechanisms and servo adjustment claws, the electrical box is installed on one side of the workbench, and each machine tool mechanism includes An arc-shaped stand; the present invention abandons the traditional three-stage fixed-axis linear transmission system, and applies a set of linear transmission from the Z-axis on the basis of the linear transmission of the X-axis and Y-axis that will be directly responsible for processing parts while maintaining Two sets of degrees of freedom output, the thread pair is responsible for adjusting the Z-axis output, and the angle adjustment is realized through the gear pair and the servo transmission system. It can be directly and vertically matched to the extension line of the outer contour curve of the direction surface of the part, which solves the disadvantages of polygonal forming in the traditional CNC system, makes the actual processing coefficient of the part infinitely close to the theoretical coefficient, and effectively meets the process requirements of actual precision parts.

Description

technical field [0001] The invention relates to the technical field of numerical control processing devices, in particular to a numerical control machine tool for machining precision parts. Background technique [0002] The traditional two-axis or three-axis CNC device usually only uses its working surface as the base plane, and uses its X, Y, and Z axes to establish three sets of freedom outputs to form three sets of linear transmissions, relying on the step angle and servo system to complete the parts. CNC machining; [0003] However, in the actual processing process, this processing method involves curved surface structures, especially when it involves the processing of precision structures. From a microscopic perspective, no matter how the three sets of axial outputs cooperate with each other, the processing method is similar to the forming of polygonal modeling. Method; the curvature and fineness of the surface depend entirely on the accuracy of the step angle output (...

AI Technical Summary

Problems solved by technology

[0004] However, this processing method undoubtedly makes the product different in theory and reality. The change of curvature easily affects the stress effect and service life of the parts. When it comes to the processing of medical, aerospace, navigation and other equipment, the process effect is not perfect.

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