A Method for Dividing Runner Space in Blisk Machining
A technology of integral blisk and space division, applied in metal processing equipment, manufacturing tools, milling machine equipment, etc., can solve the problem of restricting the efficiency of 3+2 axis machining of the overall blisk, there is no flow channel of the overall blisk, and the increase of the blisk 3+2 axis processing cost and other issues
Active Publication Date: 2021-09-10
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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Problems solved by technology
[0007] At present, there is no corresponding method for dividing the flow channel space of the blisk, which restricts the efficiency of the 3+2 axis machining of the blisk and increases the cost of the 3+2 axis machining of the blisk
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0036] The present invention provides a flow channel space division method for integral blisk processing, the main idea of which is:
[0037] The points in each subspace have a common feasible region of the tool axis vector through reasonable division of the machining space, and then the geometric model is established, which will be used as the blank model to generate the machining trajectory of the fixed axis cavity milling.
[0038] This method can improve...
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The invention discloses a flow passage space division method for integral blisk processing. Firstly, the flow passage space geometric model is constructed and projected into the standard parameter space; the flow passage space geometric model is discrete, and each discrete The point corresponds to the feasible region of the tool axis vector of a processing tool; iteratively divide the discrete points according to the position of the discrete point and its feasible region of the tool axis vector, until each divided point set has a common tool axis vector Feasible region: the geometric bounding volume constructed by each discrete point set is used as a solid model for generating machining trajectories, which is specifically used in the generation process of 3+2-axis machining tool paths in the overall blisk flow channel space, and is used to generate and process this area cavity milling trajectory. This method can improve the programming efficiency and the practicability of the tool path of the overall blisk space rough machining, and the generated tool path can improve the processing efficiency of the overall blisk rough machining process and reduce the cost of the overall blisk CNC milling process.
Description
technical field [0001] The invention relates to the technical field of integral blisk processing, in particular to a flow channel space division method for integral blisk processing. Background technique [0002] Due to the complex flow space of the overall blisk, 5-coordinate machine tools are usually used in CNC rough milling. There are two main methods: five-axis rough milling and 3+2 axis rough milling. [0003] In the 5-axis simultaneous rough machining of the overall blisk flow channel space, methods such as boundary offset method can be used to calculate the tool path; in the 3+2 axis rough machining of the overall blisk, it is necessary to manually separate different areas and use offset The machining trajectory is generated in the same way, and the angle head is installed on the traditional 3-axis machine tool to carry out the rough milling of the parts, and different tool axis vectors are used for different areas. [0004] In the current 3+2-axis rough milling pro...
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IPC IPC(8): B23C3/18
CPCB23C3/18
Inventor 朱燏肖世宏王文理丁悦
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST