Non-contact type ultrasonic surface shape correcting and polishing method and device

A non-contact, ultrasonic technology, which is applied in the field of high-precision aspheric ultrasonic polishing, can solve the problems that the surface shape depends on the accuracy, the surface shape cannot be corrected, and the surface cannot be partially repaired and polished, so as to achieve stable removal function and stable processing accuracy Effect

Inactive Publication Date: 2012-05-09
SUZHOU UNIV +1
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This equipment is only suitable for uniform and ultra-smooth polishing of the plane of various materials. It cannot realize partial p...

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  • Non-contact type ultrasonic surface shape correcting and polishing method and device
  • Non-contact type ultrasonic surface shape correcting and polishing method and device
  • Non-contact type ultrasonic surface shape correcting and polishing method and device

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Embodiment 1

[0042] See attached Figure 4 , which is a schematic structural view of the non-contact ultrasonic repairing and polishing device provided in this embodiment; the device consists of an ultrasonic generator 1, a transducer, a horn 2, and a tool head 3. The device 4 is fixed, and the transducer converts the ultrasonic signal generated by the ultrasonic generator into ultrasonic mechanical vibration of the same frequency, and then amplifies the amplitude through the horn and transmits it to the tool head, and the tool head realizes ultrasonic repair and polishing. 2mm, a cylindrical copper rod with a length of 5mm; the processing program compiled according to the repairing path and the dwell time of each point on the path is input to the industrial computer 11 in the numerical control processing system, and the numerical control is controlled by the stepping motor controller 10 respectively. The turntable 7, the CNC translation table 8 and the CNC lifting table 9 move, the workpi...

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Abstract

The invention relates to a high-precision aspheric surface ultrasonic polishing method for small-aperture brittle high-hardness materials, and discloses a non-contact type ultrasonic surface shape correcting and polishing method and a device thereof. A bristle hard alloy material is polished by the aid of propagation characteristics of ultrasonic simple harmonic vibration, which is generated by acircular oscillator, in liquid, and a stable material removing function in Gaussian distribution can be realized. After a polishing path covering an integral processed surface is set, dwell time of atool head at each of points on the polishing path is determined according to the obtained material removing function and residual errors of the processed surface, and a processing program is scheduled and inputted into a numerical-control machine tool to realize correcting and polishing processing. Accurate control of material removal amount of different areas of the surface by means of combiningthe numerical control technology, surface shape correcting and polishing of various optical surfaces such as planes, spherical surfaces, aspheric surfaces and the like can be realized, and optical surfaces with high surface shape precision can be obtained.

Description

technical field [0001] The invention relates to a high-precision aspherical ultrasonic polishing technology for small-diameter brittle and high-hardness materials, and belongs to the technical field of precision optical processing. Background technique [0002] The small-caliber high-precision aspheric mold core made of brittle cemented carbide is a key component in the low-melting point glass hot-press forming technology, and its surface shape accuracy directly affects the final precision of the formed optical parts. The processing procedure of its optical surface is first to shape the surface by precision milling, then to polish to obtain the final surface shape accuracy and to reach the surface finish of optical grade, and finally to coat the optical surface with a diamond-like film. The polishing process directly affects the final surface shape and smoothness, and is the most important process for controlling the surface shape. [0003] At present, there are mainly the ...

Claims

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Application Information

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IPC IPC(8): B24B1/04
Inventor 黄启泰
Owner SUZHOU UNIV
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