Tool setting error compensation method and system for aspherical arc envelope grinding

An arc envelope and error compensation technology is applied in the field of tool setting error compensation method and system for aspheric arc envelope grinding, which can solve the problems of grinding wheel size limitation, low diamond abrasive particle measurement and modeling accuracy, etc. Achieve the effect of small calculation amount, easy identification and improvement of processing efficiency

Active Publication Date: 2022-05-24
XI AN JIAOTONG UNIV
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  • Claims
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a tool setting error compensation method and The system solves the problem of low precision of diamond abrasive grain measurement and modeling, and breaks the limitation of the measuring instrument on the size of the grinding wheel

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  • Tool setting error compensation method and system for aspherical arc envelope grinding
  • Tool setting error compensation method and system for aspherical arc envelope grinding
  • Tool setting error compensation method and system for aspherical arc envelope grinding

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Embodiment Construction

[0071] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0072] In the description of the present invention, it is to be understood that the terms "comprising" and "comprising" indicate the presence of the described features, integers, steps, operations, elements and / or components, but do not exclude one or more other features, The existence or addition of a whole, step, operation, element, component, and / or a collection thereof.

[0073] It should also be understood that the terminology used in t...

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Abstract

The invention discloses a tool setting error compensation method and system for aspherical arc envelope grinding. The method comprises the following steps: establishing an aspherical geometric model; establishing an arc surface parallel grinding wheel surface geometric model based on the aspherical geometric model; when the tool setting error exists in the feeding direction, a tool setting error model in the feeding direction is established based on the relative motion relation between the aspherical geometric model and the grinding wheel surface geometric model; when the lateral tool setting error exists, a lateral tool setting error model is established based on the relative motion relation between the aspherical geometric model and the grinding wheel surface geometric model; and the tool setting error direction is judged according to the surface profile of the ground workpiece, and tool setting error compensation is conducted based on the tool setting error model in the feeding direction and the lateral tool setting error model. The influence of the diameter error and cylindricity error of the outer cylindrical surface of the aspheric workpiece on the tool setting precision of the grinding wheel is avoided; the method can be used for automatic tool setting error compensation, and the machining efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of numerical control machining, and in particular relates to a tool setting error compensation method and system for aspherical arc envelope grinding. Background technique [0002] Laser nuclear fusion devices, large-aperture astronomical telescopes, high-resolution earth observation systems, and lithography machines have great demands on ultra-precise aspheric optical components, and their precision restricts the development of related fields. Aspheric optical elements are generally processed by grinding, polishing, and focused ion beam shaping. Due to the extremely low material removal rate of the polishing and dressing processes, in order to reduce the material removal depth of the subsequent process, thereby reducing the processing time of the workpiece, the ultra-precision grinding technology with high precision and low damage is the key manufacturing process of aspheric optical components. Ultra-preci...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00
CPCB24B1/00Y02P90/30
Inventor 李常胜蒋庄德孙林丁建军林启敬刘阳鹏
Owner XI AN JIAOTONG UNIV
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