Workpiece bevel edge machining control method capable of effectively avoiding interference in numerically controlled machining system

Abstract

The invention relates to a workpiece bevel edge machining control method capable of effectively avoiding interference in a numerically controlled machining system. The control method is characterized in that the system reversely derives a rotation angle of a rotating shaft controlling the rotation of a cutter according to an included angle between a machining surface of the machining cutter and a machining workpiece, the included angle is an angle which not only enables the machining cutter to achieve machining requirements for the machining workpiece but also enables the parts, except for a machining point, of the cutter to be away from the machining workpiece, and then the rotating shaft controlling the rotation of the cutter is rotated according to the calculated rotation angle of the rotating shaft controlling the rotation of the cutter so as to enable the machining surface of the cutter to achieve the expected rotation angle. The control method adopting the structure provided by the invention can directly set a given cutter lifting angle and avoid interference directly through cutter lifting, so that a lot of redundant interference judgment and interference avoidance at not required to be added in codes, the machining efficiency is improved, the cutter lifting angle range is not restricted, and the machining range is enabled to be expanded. In addition, the workpiece bevel edge machining control method can be implemented by applying the existing equipment and has good popularization performance.

Description

technical field [0001] The invention relates to the technical field of motion control, in particular to the technical field of five-axis machining of numerical control machining, and specifically refers to a method for controlling bevel edge machining of workpieces that effectively avoids interference in a numerical control machining system. Background technique [0002] During the processing of the workpiece, in order to adapt to various specific use environments, it must be cut into different shapes according to the needs, such as glass products, which will produce capillary, rough, sharp edges, etc. during the cutting process, which will affect the appearance and is not safe, so according to It is required to grind the edge of the glass, especially many need to be bevelled, such as figure 1 As shown, a common beveling machine structure is that the axis A of the rotation controls the inclination angle of the tool, and the axis C of the rotation realizes the tangent followi...

AI Technical Summary

Problems solved by technology

[0003] Although it can process some relatively flat shapes, the effect of lifting the tool's processing part away from the workpiece by rotating the C axis is limited; by rotating the C axis, the tool's processing part can be lifted away from the workpiece The lifting angle of the tool is uncertain; it is impossible to directly set the specific lifting angle and other issues, so that when processing some heterogeneous workpieces, such as crescent-shaped workpieces, it is impossible to lift all the parts of the tool except for processing away from the workpiece , and the above prior art requires a lot of complicated interference judgment and interference avoidance during processing, wasting memory and time

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