Precise part machining numerical control machine tool

Abstract

The invention discloses a precise part machining numerical control machine tool. The machine tool comprises a workbench, an electrical box, a machine tool mechanism and a servo adjusting claw, the electrical box is installed at one side of the workbench, and the machine tool mechanism comprises an arc-shaped rack; and a traditional three-section fixed shaft type linear transmission system is abandoned, a set of linear transmission from the Z axis is applied on the basis of X-axis and Y-axis linear transmission directly responsible for part machining, meanwhile, two sets of degree-of-freedom output are kept, a thread pair is responsible for adjusting Z-axis output, meanwhile, angle adjustment is achieved through a gear pair and a servo transmission system, in the actual part machining process, adjustment can be conducted at any angle under the vertical plane projection visual angle, so that a cutter can be directly and perpendicularly matched with an extension line of the outline curve of the part direction plane, the defect of polygon forming in a traditional CNC system is overcome, an actual machining coefficient of a part infinitely approaches a theoretical coefficient, and the process requirements of actual precise parts are effectively met.

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.

Images