Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A precision machining method for a small-diameter rotating axisymmetric optical surface element

A technology of precision machining and rotating shafts, applied in stone processing equipment, stone processing tools, metal processing equipment, etc., can solve the problems of low processing accuracy and processing efficiency, limited processing materials, and large cumulative errors, and achieve improved processing accuracy and efficiency. Processing efficiency, high processing efficiency, and the effect of reducing accumulated errors

Active Publication Date: 2019-03-05
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of large cumulative error, low machining accuracy and efficiency, and limited machining materials in the above-mentioned prior art, the present invention aims to provide a precision machining method for small-diameter rotating axisymmetric optical curved surface elements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A precision machining method for a small-diameter rotating axisymmetric optical surface element
  • A precision machining method for a small-diameter rotating axisymmetric optical surface element
  • A precision machining method for a small-diameter rotating axisymmetric optical surface element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] See attached figure 1 , 2 , 3, 5, the material of the workpiece to be processed is FB05 cemented carbide produced by Daijie Industrial Co., Ltd., the workpiece blank is a cylinder (size is Φ20mm×10mm), the surface of the workpiece to be processed is located at the end surface of the cylinder, and its shape is Axisymmetric aspherical concave surface, the aspheric diameter is 10mm. The processing of the above-mentioned workpieces is completed on a precision machining machine tool for small-diameter rotating axisymmetric optical curved surface elements, and the following procedures are followed:

[0039] Process 1: Fix the workpiece holder 3 with the workpiece 4 to be processed on the right end of the workpiece spindle 1 through the vacuum chuck 2; rotate the rotary table 13 to make the milling spindle 6 of the oblique-axis micro-milling device 7 The axis is inclined to the axis of workpiece spindle 1 by ∠α 1 The angle intersects, ∠α 1 The value of the angle is 45°; t...

Embodiment 2

[0049] See attached figure 1 , 3 , 4, 5, the material of the workpiece to be processed is brass for commercially available H62 molds, the workpiece blank is a cylinder (size Φ20mm×10mm), the surface of the workpiece to be processed is located at the end surface of the cylinder, and its shape is an axisymmetric concave spherical surface , the diameter of the concave spherical surface is 10mm. The processing of the above-mentioned workpieces is completed on a precision machining machine tool for small-diameter rotating axisymmetric optical curved surface elements, and the following procedures are followed:

[0050] Process 1: Fix the workpiece holder 3 with the workpiece 4 to be processed on the right end of the workpiece spindle 1 through the vacuum chuck 2; rotate the rotary table 13 so that the center line of the single-point diamond turning tool 12 is aligned with the workpiece The axes of the main shaft 1 are coincident; the tool setting of the workpiece 4 and the single...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a precision machining method for small-aperture rotating shaft symmetric optical cambered elements. The method is based on a precision machine tool for small-aperture rotating shaft symmetric optical cambered elements, and the small-aperture rotating shaft symmetric optical cambered elements made of different workpiece materials are machined by different processes. An inclined shaft superfine milling device, an inclined shaft electrorheological polishing device and a single-point diamond turning device are integrated on a single machine tool, and different machining modes can be switched over rapidly; by a detecting device, on-position measurement and shape error correction on workpieces can be implemented, compensated machining of the workpieces can be realized, and the controllability of a machining path is good; the workpieces are clamped at a time in a machining process, accumulated errors are reduced, assisted working hours are shortened, and the machining precision is improved; the method is suitable for machining and detecting the workpieces with different surface shapes, and interference between a knife and the workpieces can be avoided effectively; the precision machining method is suitable for machining the workpieces made of various materials; and the machining efficiency of surface shapes of workpieces is high.

Description

technical field [0001] The invention relates to a processing method for an optical curved surface element, in particular to a precision processing method for a small-diameter rotational axisymmetric optical curved surface element. Background technique [0002] With the rapid development of optoelectronic information, automotive, biological, medical, security, military and aerospace industries, small-diameter rotating axisymmetric optical curved elements are increasingly widely used in various high-quality imaging systems, and the demand has increased sharply. In order to meet the requirements of high-precision imaging in the above-mentioned fields, the surface shape of the small-aperture rotating axisymmetric optical surface element is required to achieve sub-micron level shape accuracy, and its surface is required to achieve nano-level surface roughness and minimal sub-surface damage. [0003] At present, there are two main methods for precision manufacturing of small-diame...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B28D1/18B28D7/00B28D7/04B24B29/04B24B41/06
CPCB24B29/04B24B41/06B28D1/186B28D7/00B28D7/005B28D7/04
Inventor 唐昆孔明慧谭可成
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com