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A processing method for non-revolving reflective surface structure of rotating semi-ellipsoid

A processing method and reflective surface technology, applied in the direction of mirrors, etc., can solve the problems of limited popularization and application, large structural size, difficulty in meeting precision requirements, etc., and achieve the effects of promoting popularization and application, good controllability of results, and high processing precision

Active Publication Date: 2019-12-03
NORTHWEST INST OF NUCLEAR TECH
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Problems solved by technology

The non-rotating semi-ellipsoid reflective surface is non-rotating and belongs to the category of free-form surface processing. Compared with optical processing, its structural size is too large, and the processing accuracy requirements are higher than mechanical processing. It is difficult to meet the accuracy requirements by conventional methods, which limits its Promote application

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  • A processing method for non-revolving reflective surface structure of rotating semi-ellipsoid
  • A processing method for non-revolving reflective surface structure of rotating semi-ellipsoid
  • A processing method for non-revolving reflective surface structure of rotating semi-ellipsoid

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Embodiment Construction

[0049] The present invention will be described below in conjunction with the accompanying drawings. It should be understood that the process described here is only used to illustrate and explain the present invention, and is not intended to limit the present invention.

[0050] For the non-revolving reflector structure of the rotating semi-ellipsoid, its horizontal cross-section is an ellipse, and its normal section is a semicircle, which cannot be processed with high precision by a lathe.

[0051] Therefore, the present invention provides a processing method for a non-revolving reflective surface structure of a rotating semi-ellipsoid. Since the structure of a non-revolving reflective surface of a rotating semi-ellipsoid is spliced ​​by two 1 / 4 ellipsoidal shells, the specific implementation steps of its processing Yes, the specific process is as follows figure 1 Shown:

[0052] Step 1) Establish a coordinate system XYZ according to the structure of the non-revolving reflect...

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Abstract

The invention relates to a machining method for a rotating semi-ellipsoidal non-rotary reflecting surface structure. Through the method, the machining difficulty and the technological risk of a large-size rotating semi-ellipsoidal non-rotary reflecting surface can be effectively reduced, and the method has the characteristics of being high in machining precision, low in cost, good in result controllability and the like. The machining method comprises the main machining steps of (1) machining two 1 / 4 ellipsoidal shells, (2) splicing an intermediate process rotary body, (3) finish milling the intermediate process rotary body, (4) installing a sealing and polishing plug, (5) finish turning the intermediate process rotary body, (6) splicing a reflecting surface structure prototype, (7) finishmilling the reflecting surface structure prototype, (8) splicing a secondary intermediate process rotary body, (9) conducting fine polishing to form a mirror surface, (10) splicing a final reflectingsurface structure and (11) plating a film.

Description

technical field [0001] The invention belongs to the field of optical processing technology and application, and relates to a processing method for a non-revolving reflective surface structure of a rotating semi-ellipsoid. Background technique [0002] Half ellipsoid reflector (x 2 / a 2 +y 2 / b 2 +z 2 / c 2 = 1; z ≥ 0) has unique spatial structure characteristics, and its conjugate imaging or converging properties can be used to efficiently simplify the optical path and solve many technical problems in current optical applications. [0003] According to the three-axis relationship of the ellipsoid, the semi-ellipsoid can be divided into two types: non-rotating semi-ellipsoid (the cross-section is an ellipse when z=0) and rotating semi-ellipsoid (the cross-section is a circle when z=0). It is also divided into three-axis semi-ellipsoid (a≠b≠c) and rotating semi-ellipsoid non-revolving surface (a≠b=c). [0004] Compared with the rotating semi-ellipsoid reflecting surface,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00G02B5/08
Inventor 吴丽雄杨鹏翎王立君陈绍武
Owner NORTHWEST INST OF NUCLEAR TECH
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