Method for curve surface grinding with cylindrical grinding wheel at virtual ball cutter radius

A cylindrical and grinding wheel technology, applied in the field of precision grinding of free-form surfaces, can solve the problems of low machining accuracy, fast tool wear, and low machining efficiency, and achieve the effects of high machining precision, small surface roughness, and brief algorithm

Active Publication Date: 2017-06-16
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0002] At present, the grinding of free-form surfaces is mainly processed by single-point diamond or multi-axis grinding wheels. When these two methods are used for grinding, the processing efficiency is low and the tool wears quickly.
In addition, a tool trajectory planning method for surface grinding with related curved surface torus grinding wheels has been proposed, but this method is difficult to trim and has low machining accuracy

Method used

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  • Method for curve surface grinding with cylindrical grinding wheel at virtual ball cutter radius
  • Method for curve surface grinding with cylindrical grinding wheel at virtual ball cutter radius
  • Method for curve surface grinding with cylindrical grinding wheel at virtual ball cutter radius

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Embodiment Construction

[0033] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and examples, but the protection scope of the present invention is not limited to the scope shown in the examples.

[0034] Such as Figure 1 to Figure 6 Described, a kind of cylindrical emery wheel curved surface grinding method of virtual ball cutter radius, comprises steps:

[0035] Step 1, designing the attitude angle of the cylindrical grinding wheel, designing the inclination angle of the axis of the cylindrical grinding wheel on the surface tangent point normal vector 4 through the virtual ball cutter model;

[0036] Step 2. Plan the tool trajectory, determine the tool trajectory according to the surface tangent point normal vector 4 and the virtual ball cutter model 6, and ensure the inclination angle set in step 1 through a rotation axis of the machine tool.

[0037] Step 3. Grinding the workpiece according to...

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Abstract

The invention discloses a method for curve surface grinding with a cylindrical grinding wheel at a virtual ball cutter radius. The method includes the steps that 1, the attitude angle of the cylindrical grinding wheel is designed, and the inclination angle of the axis of the cylindrical grinding wheel on a curve surface tangency point normal vector is designed through a virtual ball cutter model; 2, a cutter path is planned and determined according to the curved surface tangency point normal vector and the virtual ball cutter model, and the set inclination angle in the step 1 is guaranteed through a rotating shaft of a machine tool; 3, by the adoption of an axial feeding mode, a workpiece is subjected to grinding machining according to the cutter path. The cylindrical or quasi-cylindrical grinding wheel can be used for four-axis machining of a free curved surface, and the method has the advantages that planning of the cutter path is simple and flexible, the precision of a machining shape is high, and surface roughness is low, and is suitable for machining free curve surfaces of optical glass and other hard brittle materials.

Description

technical field [0001] The invention relates to the technical field of precision grinding of free-form surfaces, in particular to a method for grinding a curved surface with a cylindrical grinding wheel with a virtual ball cutter radius, using a cylindrical or quasi-cylindrical diamond cylindrical grinding wheel for a four-axis tool for precision grinding of curved surfaces trajectory method. Background technique [0002] At present, the grinding of free-form surfaces is mainly processed by single-point diamond or multi-axis grinding wheels. When these two methods are used for grinding, the processing efficiency is low and the tool wears quickly. In addition, the tool trajectory planning method for the related curved surface torus grinding wheel surface grinding has been proposed, but this method is difficult to trim and has low machining accuracy. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B3/60G06F17/50
CPCB24B3/60G06F30/17
Inventor 谢晋邓振杰刘继楠
Owner SOUTH CHINA UNIV OF TECH
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