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Complex surface numerical control machining motion analyzing method based on mapping

A technology for complex curved surfaces and machining motion, applied in the directions of digital control, program control, electrical program control, etc., can solve problems such as inability to perform forward-looking analysis, large consumption of computing resources, etc., to facilitate software integration and practical application, and achieve large engineering value. Effect

Active Publication Date: 2015-06-10
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of high consumption of computing resources and the inability to perform forward-looking analysis when analyzing the motion relationship of complex curved surface NC machining by applying differential methods. The present invention proposes a mapping-based NC machining motion analysis of complex curved surfaces method

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  • Complex surface numerical control machining motion analyzing method based on mapping
  • Complex surface numerical control machining motion analyzing method based on mapping
  • Complex surface numerical control machining motion analyzing method based on mapping

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Embodiment Construction

[0027] specific implementation plan

[0028] In the following, specific embodiments of the present invention will be described in detail in combination with technical solutions and accompanying drawings, and detailed implementation methods and processes will be given, but the scope of protection of the present invention is not limited to the following embodiments.

[0029] Step 1. Parametric expression of general inclined plane machining

[0030] The processing of any inclined plane is regarded as a processing type in which the tool axis is vertical, the tool is in translation, and the workpiece is in angular swing, so that two basic independent variables, the inclination angle of the inclined plane and the feed direction angle, are abstracted. Such as figure 1 As shown, the inclination angle of the bevel is defined as the angle between the normal direction of the bevel and the tool axis vector, and its expression is shown in formula 1. The feed direction angle is defined as...

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Abstract

The invention relates to a complex surface numerical control machining motion analyzing method based on mapping and belongs to the technical field of numerical control machining. The method is characterized in that common complex surface machining is regarded as the combination of micro tapered planes, optional tapered plane machining is machined in a way that a cutter shaft is vertical, a cutter is in translational motion, and a workpiece performs angle swinging, and two basic independent variables including the tapered surface inclination angle and the feeding direction angle are abstracted to complete the parametric expression of common complex surface machining; the tapered surface inclination angle and the feeding direction angle are used as coordinate axes to build abstract plane space, and coordinate transformation is performed on common complex surface machining to build the mapping relation between complex surface machining and the abstract plane space; the relative motion relation of the cutter and the workpiece in common complex surface numerical control machining can be conveniently and systematically analyzed based on the mapping relation. Compared with a traditional differential method, the method has the advantages that the defects that the differential method is passively executed along curve surface shape change and large in computing resource consumption are overcome, and the method is convenient for software integration and actual application and high in engineering value.

Description

technical field [0001] The invention belongs to the technical field of numerical control machining, relates to the motion analysis of curved surface processing, in particular to a mapping-based numerical control processing motion analysis method for complex curved surfaces. Background technique [0002] With the development of social economy and the progress of science and technology, complex curved surface parts are more and more widely used in aerospace, energy power, automobile, mold and other industrial fields. The processing of complex curved surface parts is a difficult problem in mechanical processing, and it is also the main research and application object of numerical control technology and CAM technology. The analysis of the relative motion relationship between tool and workpiece in NC machining is the primary content of cutting dynamics research. Compared with simple flat surface machining, the difficulties in motion analysis of complex curved surface NC machinin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18
CPCG05B19/4099G05B2219/33297
Inventor 魏兆成王敏杰
Owner DALIAN UNIV OF TECH
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