Optical free-form surface precision milling machine tool

Abstract

The invention discloses an optical free-form surface precision milling machine tool, and belongs to the technical field of optical free-form surface manufacturing and precision machining. The machinetool comprises a machine tool base, wherein a machine tool bottom plate is arranged on the upper surface of the machine tool base through a check bolt assembly, a Z-axis movement mechanism and a cradle workbench are arranged on the upper surface of the machine tool bottom plate, an optical free-form surface workpiece is arranged on the cradle workbench through a workpiece clamp, a machine tool topplate is arranged at the top of the Z-axis movement mechanism, and a gravity balance device is arranged on the machine tool top plate; a milling waste liquid collecting groove is formed in the uppersurface of the machine tool bottom plate, a waste liquid collecting hole is formed in the groove bottom of the waste liquid collecting groove, and the waste liquid collecting hole is discharged through a pipeline to recycle milling waste liquid; and a Y-axis movement mechanism, an X-axis movement mechanism, a spindle box and a spindle assembly are sequentially arranged on the Z-axis movement mechanism. The machine tool has excellent rigidity, strength and stability; and the used check bolt assembly is of a bolt-in-bolt structure, and it can be guaranteed that the machine tool has stable staticand dynamic characteristics.

Description

technical field [0001] The invention relates to the technical field of manufacturing and precision machining of optical free-form surfaces, in particular to a precision milling machine tool for optical free-form surfaces. 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 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 has also made it the current extremely One of the most complex an...

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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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