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Non-contact type hydrojet grinding head in use for digital controlled polishing

A non-contact, polishing liquid technology, applied in optical surface grinders, grinding/polishing equipment, grinding machines, etc., can solve the problems of difficult control of uniformity, affecting polishing quality, difficult control of polishing paste distribution, etc., to achieve uniformity guarantee , Improving the polishing quality and avoiding the effect of local stress on the workpiece

Inactive Publication Date: 2008-06-18
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main problem of the solid grinding head used for CNC polishing is that the distribution of the polishing paste under the grinding head is difficult to control, so that the local removal amount and uniformity of the surface of the polished piece are difficult to control, which affects the polishing quality.

Method used

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  • Non-contact type hydrojet grinding head in use for digital controlled polishing
  • Non-contact type hydrojet grinding head in use for digital controlled polishing
  • Non-contact type hydrojet grinding head in use for digital controlled polishing

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Embodiment Construction

[0015] The present invention is implemented according to the structure shown in Figure 2, wherein the material of the hollow drive shaft 4 and the hollow grinding head 5 is stainless steel, and the two are integral hollow parts or two parts are matching hollow parts, and the so-called cooperation is two parts. Adhesive bonding or thread fit, the size of the grinding head is related to the size of the optical part to be processed, generally 1 / 5 of the size of the optical part to be processed, the surface shape of the workpiece surface of the grinding head is good, and the flatness is good At 1 / 10λ°, the size of the polishing fluid outlet hole 7 is the largest hole 200μ, the smallest hole 40μ, the hole in the center of the grinding head working surface is the largest, and the more it transitions to the edge, the smaller the polishing fluid outlet hole is. The distribution adopts concentric circle distribution or spiral distribution, and the distance between the holes in each dire...

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Abstract

A non-contact liquid-spraying grinding head for the numerally controlled polishing is composed of a hollow drive shaft and a hollow grinding head with an internal cavity and several polishing liquid spraying-out holes. Its advantages are high polishing quality.

Description

technical field [0001] The invention belongs to a non-contact liquid jet grinding head for numerical control polishing and belongs to the technical field of optical cold processing. Background technique [0002] In the field of optical technology, the optical lenses that make up various optical systems, such as lenses, mirrors, plane mirrors, spherical mirrors, and various aspheric mirrors, must be roughly ground, finely ground, finely ground, and polished according to the technical requirements of optical design. This process is called optical cold processing in the optical field. [0003] Optical cold processing machine tools have grinding heads for grinding optical lenses. Generally, the size of the grinding head used for CNC polishing is smaller than that of mechanical polishing. In the past years, it was used for CNC polishing. All grinding heads are solid grinding heads. [0004] The closest prior art with the present invention is the numerically controlled polishing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B13/00B24B57/02
Inventor 王君林
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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