Diamond turning method and device for Archimedean spiral type Fresnel lens |
Title： |
| Diamond turning method and device for Archimedean spiral type Fresnel lens |
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Application Number： |
200610088865 |
Application Date： |
2006/07/21 |
Announcement Date： |
2007/01/24 |
Pub. Date： |
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Publication Number： |
1899735 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
B23B 5/46 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Ye Peiqing, Zhao Tong, Zhang Hui, Wang Jisong, Li Weiqian |
Key Words： |
Diamond turning, Archimedean spiral type, Fresnel lens |
Abstract： |
The present invention belongs to the field of precise machining technology, and is especially diamond turning method and apparatus for Archimedean spiral type Fresnel lens. The present invention has X axis ram on guide track on bed for X axis motion, Z axis ram on guide track on the X axis ram for Z axis motion, arced direct driving motor on Z axis ram for B axis motion, precise linear motor on the mover of the arced direct driving motor, and diamond cutter on the precise linear motor for W axis motion. During machining, the diamond cutter has the motion path as the synthesis of the X axis motion, the B axis motion and the W axis motion, and the work piece on the bench rotates around C axis, so that the diamond cutter moves along Archimedean spiral in the surface of the work piece. The present invention has continuous cutting, less damage of the cutter, short machining period and raised machining precision of Fresnel lens. |
Claim： |
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Priority： |
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PCT： |
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