A precision milling machine tool for optical free-form surface

Abstract

An optical free-form surface precision milling machine tool, which belongs to the technical field of optical free-form surface manufacturing and precision machining, includes a machine tool base, the upper surface of the machine tool base is equipped with a machine tool base plate through an anti-loosening bolt assembly, and a Z-axis motion mechanism is installed on the upper surface of the machine tool base plate And the cradle worktable, the optical free-form surface workpiece is installed on the cradle workbench through the workpiece fixture, the machine tool top plate is installed on the top of the Z-axis motion mechanism, and the gravity balance device is installed on the machine tool top plate; the milling waste liquid collection is provided on the surface of the machine tool bottom plate There is a waste liquid collection hole at the bottom of the waste liquid collection tank, and the waste liquid collection hole is discharged through the pipeline to recycle the milling waste liquid; the Z-axis motion mechanism is sequentially installed with a Y-axis motion mechanism, an X-axis motion mechanism, and a spindle box. and spindle components. The machine tool has excellent rigidity, strength and stability. The anti-loosening bolt assembly used is a "bolt in the bolt" structure, which can ensure the stable static and dynamic characteristics of the machine tool.

Description

technical field [0001] The invention relates to the technical field of optical free-form surface manufacturing and precision machining, in particular to an optical free-form surface precision milling and milling machine tool. Background technique [0002] In the entire process chain of optical free-form surface processing, precision milling has a great influence on the surface and sub-surface quality of optical free-form surfaces, and its processing effect will directly determine the efficiency and feasibility of subsequent processing such as grinding and polishing. Therefore, the development of an optical free-form surface precision milling machine has become one of the key factors to improve the manufacturing capability of optical free-form surfaces, and the coupling of multiple factors such as high stiffness, large damping and long-term stability in the design of optical free-form surface milling machines has also made it an extremely important factor at present. One of t...

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Problems solved by technology

Therefore, the development of precision milling machines for optical free-form surfaces has become one of the key factors to improve the manufacturing capabilities of optical free-form surfaces, and the coupling of multiple factors such as high stiffness, large damping, and long-term stability in the design of optical free-form surface milling machines also makes it the current extremely One of the most complex and high-stakes engineering problems

[0003] The stiffness and damping of the joint surface of the machine tool have a significant impact on the static and dynamic characteristics of the machine tool, but the existing anti-loosening methods may still loosen when encountering vibration, high temperature, long-term use, etc., which will affect the stiffness and damping of the joint surface of the machine tool. damping or disruptive effect

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