UG-based optimization method of planar-cavity small-curvature radius arc numerical control processing

An optimization method and small curvature technology, applied in the direction of digital control, program control, electrical program control, etc., can solve the problems of increasing the total processing time of parts, increasing the total time of finishing machining, and reducing productivity, so as to shorten processing time and reduce precision. Processing time, the effect of reducing the total time

Inactive Publication Date: 2017-06-13
MAOMING POLYTECHNIC
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Problems solved by technology

In finishing machining, since the tool is small, the residual allowance after rough machining will be large, which will greatly increase the total time of finishing machining, thereby increasing the total machining time of parts and reducing productivity

Method used

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  • UG-based optimization method of planar-cavity small-curvature radius arc numerical control processing
  • UG-based optimization method of planar-cavity small-curvature radius arc numerical control processing
  • UG-based optimization method of planar-cavity small-curvature radius arc numerical control processing

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Embodiment Construction

[0018] refer to Figure 1 to Figure 4 and Figure 6 , the optimization method based on the UG planar cavity small curvature radius arc numerical control machining provided by the present invention, the method includes:

[0019] (1) Find out the arc start point B1 and the arc end point B2 where r

[0020] (2) Make arcs C1 and C2 with the arc starting point B1 and the arc end point B2 as the center and R as the radius respectively;

[0021] (3) The remaining curves of the contour of the workpiece A are compensated for displacement with the radius R of the tool;

[0022] (4) The curve obtained by intersecting the two arcs C1 and C2 with the displacement compensation curve D is the optimized tool center trajectory E1.

[0023] Then, check whether the motion track of the machining tool has been searched. If not, return to the first step, repeat the above steps until t...

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Abstract

The invention discloses an optimization method for numerically controlled machining of arcs with small curvature radius based on UG plane cavity. The method includes: (1) Finding out the starting point and end point of the arc where r<R in the contour of the workpiece, where R is the radius of the tool , r is the radius of the machining contour; (2) Use the starting point and end point of the arc as the center respectively, and make an arc with R as the radius; (3) Use the radius R of the tool for displacement compensation for the remaining curves of the workpiece contour; (4 ) The curve obtained by intersecting the two arcs with the displacement compensation curve is the optimized tool center trajectory. The invention can leave a smaller residual amount for finishing, greatly reduce the finishing time, can shorten the product manufacturing processing time, thereby reducing the production cost.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing and automation thereof, and in particular relates to an optimization method for numerically controlled machining of arcs with small curvature radius based on UG plane cavity. Background technique [0002] The wide application of CNC machine tools has greatly shortened the manufacturing cycle of products and improved the processing quality and productivity of products. In the entire production process of the product, the cutting processing time accounts for more than 60% of the entire manufacturing cycle. In order to reduce or avoid unnecessary waste caused by conservative parameters, it is very necessary to study the parameter optimization of the CNC cutting process. UG software is the most advanced high-end CAD / CAM / CAE software in the world today, and it is a good platform for researching NC programming and machining automation. Although UG CAM has powerful functions, the setting of its p...

Claims

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Application Information

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IPC IPC(8): G05B19/19
CPCG05B19/19G05B2219/35349
Inventor 余凤燕
Owner MAOMING POLYTECHNIC
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