Receiver part complex surface numerical control machining method

Abstract

The invention provides a receiver part complex surface numerical control machining method and belongs to the machine manufacturing field. The method adopts a segmental machining method, solves the difficulty of complex surface numerical control machining, and meanwhile, provides a thinking direction for resolving similar problems. According to the method, through analyzing part structure features, a machining surface is manually divided into a plurality of areas, and influences of different surfaces on cutters during programming are fully known; operation is established for different machining areas, thereby simplifying the programming process; and solution schemes are made for the influences, so that cutting points of the cutters are optimized, machining quality of the parts is improved, machining effect is improved, and the problem that the machining field is blank is fundamentally solved.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and in particular relates to a numerical control machining method for complex profiles of casing parts. Background technique [0002] With the maturity of engine manufacturing technology, the overall structure of casing parts is also becoming more complex and the processing methods are becoming more diversified; more and more parts adopt more complex design structures, and the wool of parts is also Precision castings that are more difficult to manufacture are used, which puts forward higher requirements for the processing technology of parts; due to the current imperfection of precision casting technology, coupled with the complexity of the structure of parts, the limitation of hardware structure of processing equipment and the limitation of numerical control processing technology Due to the shortage and other reasons, the machining of complex profiles of casing parts has always been at a ...

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Problems solved by technology

[0002] With the maturity of engine manufacturing technology, the overall structure of casing parts is also becoming more complex and the processing methods are becoming more diversified; more and more parts adopt more complex design structures, and the wool of parts is also Precision castings that are more difficult to manufacture are used, which puts forward higher requirements for the processing technology of parts; due to the current imperfection of precision casting technology, coupled with the complexity of the structure of parts, the limitation of hardware structure of processing equipment and the limitation of numerical control processing technology Due to the shortage and other reasons, the processing of complex profiles of casing parts has been at a low level, which affects the dimensional accuracy, surface quality and overall processing cycle of the parts.

[0003] In the process of parts development, it is necessary to mill the side wall and bottom surface around the profile; due to the large height difference of the side wall of the part, the tangent points of the transfer fillets between the side wall and the bottom surface are different, making the part It shows that the transfer fillet between the side wall and the bottom surface is always changing. At the same time, the processed surface is on a circular arc surface, which makes the structure of the part more complicated.

This structure of the part makes it impossible to use the same tool path to meet the design requirements of all dimensions at the same time when programming, so that the machining has been at a backward level, and the real CNC machining has not been realized. The dimensions still need to be guaranteed by clamping. Production High efficiency, low cost, poor processing quality

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