Two-dimensional bidirectional dexel blank modeling method and its processing simulation method
A modeling method and blank technology, applied in the direction of electrical program control, digital control, etc., can solve the problem of not considering turning machining simulation, etc., and achieve the effect of enhanced real-time performance and improved efficiency
Active Publication Date: 2016-12-28
中国科学院沈阳计算技术研究所有限公司
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[0009] The existing blank modeling methods do not take into account the characteristics of turning simulation and cannot be fully applied to turning simulation
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[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0041] The space partitioning expression method is proposed to solve the disadvantage of high computational cost of the direct solid modeling method. Its basic idea is to decompose the solid model of an object into a set of basic elements. Use these basic elements to approximate objects. This simplifies the Boolean operations between entities, and simplifies the three-dimensional Boolean operations in space to two-dimensional operations, which greatly reduces the complexity of calculations and improves the efficiency of processing simulation. This method is currently the most studied and most widely used method. According to the characteristics of the basic element data structure and segmentation method used, the space segmentation expression method can be divided into the following types: dexel expression method, voxel expression method, oc...
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The invention relates to a high-efficiency blank modeling method, in particular to a two-dimensional two-way dexel modeling method and a processing simulation method thereof. The modeling method is based on the dexel modeling method, is combined with the characteristics of turning processing, and is efficiently applied to the turning processing simulation. The modeling method has the advantages that according to the characteristics that the inner diameter turning processing and the outer diameter turning processing are not performed along the same direction, the turned blank is a rotary body and the like, the projection of a three-dimensional blank model in a two-directional plane is subdivided along the X-axis direction and the Z-axis direction, the subdividing along the Z-axis direction is required by the outer diameter turning processing simulation, and the subdividing along the X-axis direction is required by the inner diameter turning processing simulation; by using a space division method as basis, the efficiency is higher; by considering the characteristics of the turning processing, the requirements of turning processing simulation is met; by increasing the number of dexel, the accuracy is improved, and the same accuracy of inner diameter turning processing simulation and outer diameter turning processing simulation is realized.
Description
technical field [0001] The present invention relates to a new blank modeling method—two-dimensional two-way dexel modeling method (dual dexel), especially relates to the application of dual dexel blank modeling in the turning simulation application to achieve high precision and high efficiency Simulation of inner and outer diameter turning. Background technique [0002] The correctness of NC program is a necessary condition to improve the productivity and part quality of NC machining. As an efficient method of NC (Numerically Controlled) program verification, NC machining simulation has become a research hotspot. CNC turning can generally automatically complete the processing of internal and external cylindrical surfaces, conical surfaces, spherical surfaces, cylindrical and conical threads, and can also process some complex rotary surfaces. It is one of the most widely used processing methods at present. Therefore, the simulation of NC turning process has important theore...
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IPC IPC(8): G05B19/19
CPCG05B19/19
Inventor 郭锐锋陈蕊蕊王鸿亮李博卢林
Owner 中国科学院沈阳计算技术研究所有限公司