Control Method of Jet Polishing Surface Shape Error Based on Variable Removal Function

An error control and surface polishing technology, applied in program control, computer control, general control system, etc., to reduce vibration, improve removal convergence efficiency, and reduce surface error

Active Publication Date: 2018-02-06
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Abstract
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Problems solved by technology

[0006] In order to solve the problems caused by the current jet polishing process, the present invention proposes a jet polishing surface shape error control method based on a variable removal function, so that the polishing is not limited by the dynamic performance of the machine tool, and the impact caused by complex trajectory polishing is reduced , to improve the surface convergence efficiency

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  • Control Method of Jet Polishing Surface Shape Error Based on Variable Removal Function
  • Control Method of Jet Polishing Surface Shape Error Based on Variable Removal Function
  • Control Method of Jet Polishing Surface Shape Error Based on Variable Removal Function

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Embodiment Construction

[0024] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments, with reference to formulas and accompanying drawings. The invention realizes the control of the removal function by regulating the polishing process parameter of nozzle pressure.

[0025] The polishing equipment is an ordinary jet polishing machine tool, and the basic processing parameters are: the maximum feed speed of the machine tool =4000mm / min, nozzle inclination θ = 20°, nozzle speed 1000r / min, the polishing process of the machine tool maintains a constant feed rate =50mm / min, the distance between the programmed position of the polishing head and the surface of the workpiece is 50mm, the diameter of the nozzle is 1mm, and the upper limit of the nozzle pressure is =1MPa, the lower limit is =0.286MPa. The processed test piece is a K9 workpiece with a diameter of ...

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Abstract

The invention provides a fluid jet polishing surface shape error control method based on a variable removal function. The method sequentially comprises the following steps: obtaining a removal function of a polishing process; detecting surface shape error distribution; establishing a processing process model of the polishing process; solving process parameters to realize variable removal function profiling; and controlling surface shape precision through numerical-control processing. The method provided by the invention can be adopted to avoid impact, caused by frequent acceleration and deceleration of a machine tool, while a conventional dwell time solving algorithm is adopted, so that dependency, on dynamic performances of the machine tool, of the polishing process is reduced, and surface shape convergence efficiency and precision is improved.

Description

technical field [0001] The invention relates to a jet polishing surface shape error control method based on a variable removal function, and belongs to the technical field of optical manufacturing. According to the shape of the surface to be processed, the invention adjusts the removal function in real time by controlling the process parameters of the jet polishing removal function, so as to realize the control of the surface shape error. Background technique [0002] Jet polishing technology is a new type of ultra-precision polishing technology. Jet polishing technology was proposed by Oliver W. Fähnle and Hedser Van Brug of Delft University in the Netherlands at the end of last century. Form a jet beam, reach the surface of the material at a certain speed, and use the shearing force of the abrasive particles on the material to achieve the removal effect. Compared with traditional polishing technology and other ultra-precision processing technologies, the main characteris...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B31/116B24B51/00B24C3/32G05B19/4099
CPCB24B31/116B24B51/00B24C3/32G05B19/4099
Inventor 樊炜张连新柯瑞吴祉群高浪蓝河张云飞丁颖孙鹏飞
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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