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Annular feed path planning method of integral impeller rough machining

A technology of integral impeller and tool path, which is applied in the direction of instruments, computer control, simulators, etc., can solve the problems affecting the processing efficiency of the impeller and the redundancy of tool paths, etc.

Active Publication Date: 2014-12-03
JIANGSU JITRI HUST INTELLIGENT EQUIP TECH CO LTD
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Problems solved by technology

The bilateral offset rough machining tooling method is more practical when the blade distortion is small and the width of the flow path between the two blades is relatively uniform. Redundant tool paths appear in the narrow position, which seriously affects the processing efficiency of the impeller

Method used

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  • Annular feed path planning method of integral impeller rough machining
  • Annular feed path planning method of integral impeller rough machining
  • Annular feed path planning method of integral impeller rough machining

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

[0040] The rough machining of integral impeller slotting is the process with the largest amount of material removal in integral impeller machining, and the length of its processing time is the main factor affecting the overall impeller machining efficiency. For the rough machining of the overall impeller, it can be improved and improved from the following two aspects: the planning of the tool position trajectory and the selection of cutting parameters. The invention optimizes from the aspect of tool position trajectory planning to improve the efficiency...

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Abstract

The invention discloses an annular feed path planning method of integral impeller rough machining. According to the method, an existing bilateral-offset feed mode is replaced by the feed mode perpendicular to the impeller axial direction, each transverse cutting path perpendicular to the impeller axial direction is connected through an arc feeding and retracting cutter to form an annular cutting path, and a layer of rough machining path is composed of a plurality of annular cutting paths. By means of the method, through reasonable machining feed path planning, the total length of the feed paths is shortened, and the problem of the low machining efficiency caused by redundant machining feed paths existing in a traditional integral impeller rough machining method is solved.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a method for planning an annular tool path for rough machining of an integral impeller. Background technique [0002] Compared with the impeller with assembly structure, the integral impeller has the advantages of simple structure, good heat transfer performance, high reliability and light weight, so it is widely used in various high-performance aero-engines; It is complex and difficult to process. Although multi-axis linkage CNC can be used for processing at present, the processing quality is poor, the efficiency is low, and the processing cost is high, which restricts the use of the overall impeller. It is particularly important to study how to improve the quality and efficiency of CNC machining of integral impellers. The amount of material removed in the rough machining of the overall impeller is very large, and it is very meaningful to design the rough ma...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/4093
Inventor 代星鄢龙志严思杰唐祥武丁汉
Owner JIANGSU JITRI HUST INTELLIGENT EQUIP TECH CO LTD
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