Pneumatic non-spherical processing clamp with adjustable inclination angle

Abstract

The invention provides a pneumatic non-spherical processing clamp with an adjustable inclination angle, which relates to a clamp. The pneumatic non-spherical processing clamp with an adjustable inclination angle, which is provided by the invention, has the characteristics of simple mechanical structure, good use expansibility, high positioning accuracy, good mechanism rigidity, strong self-locking capacity, convenient use and the like. The clamp is provided with a rotary platform, a base, a base cylinder seat, a base cylinder, a swinging rod, a swinging rod fixing seat, an intermediate platform, an intermediate platform cylinder, an intermediate platform hinge, an intermediate platform dust cover, an intermediate platform rotary shaft, an intermediate platform shaft seat, an intermediate platform cylinder seat, a working platform, a working platform cylinder seat, a working platform cylinder, a working platform hinge, a working platform dust cover, a working platform rotary shaft and a working platform shaft seat. The cylinders enable the workbench to incline for a certain angle by controlling the strokes of respective pistons, and a circular grating can be used for realizing fully closed-loop feedback and obtaining an accurate inclination angle, thereby providing the required clamping angle for processing non-spherical surfaces and especially wedge-shaped non-spherical surface workpieces.

Description

technical field [0001] The invention relates to a clamp, in particular to a pneumatically adjustable aspheric processing clamp for wedge-shaped aspheric workpieces. Background technique [0002] Wedge-shaped aspheric surfaces are mainly used in interferometers, large astronomical telescopes, ignition devices, etc., and have high precision requirements. The common method for processing wedge-shaped aspheric surfaces requires three processes (grinding a reference plane, grinding a bevel with a certain angle, and positioning the aspheric surface with the ground bevel as a reference), three times of clamping, not only there are multiple reference conversion errors, but also It is prone to interference problems, so it has a certain impact on the surface accuracy. [0003] Chinese patent CN1785560 discloses a processing technology for aspheric optical elements, which is mainly used for processing zinc selenide and zinc sulfide aspheric optical elements. ZnSe and ZnS are cut with...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to generally need three procedures (grinding the reference plane, grinding the inclined surface of a certain angle and grinding the aspheric surface with the inclined surface as the reference) when processing the existing wedge-shaped aspheric surface. Secondary reference conversion errors, and prone to interference, have a certain impact on the accuracy of the surface type, etc., to provide a simple mechanical structure, good scalability, high positioning accuracy, good mechanism rigidity, strong self-locking ability, easy to use Pneumatic adjustable inclination angle aspheric processing fixture with other characteristics

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