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Four-axle linked digital controlled processing post processing method and its control system

A post-processing and four-axis linkage technology, which is applied in the general control system, control/regulation system, program control, etc., can solve the problem of uneven cutting speed of tools

Active Publication Date: 2007-03-21
DONGFANG TURBINE CO LTD
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Problems solved by technology

[0003] In order to overcome the phenomenon that the cutting speed of the cutting tool is not uniform in the machining of turbine blades by the existing four-axis linkage numerical control machining machine tool, the present invention provides a post-positioning of the numerical control processing program that can homogenize the cutting speed of the cutting tool and improve the processing quality and efficiency of the parts. Processing method and control system

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  • Four-axle linked digital controlled processing post processing method and its control system
  • Four-axle linked digital controlled processing post processing method and its control system
  • Four-axle linked digital controlled processing post processing method and its control system

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Embodiment Construction

[0044] The specific embodiment of the present invention is described in further detail below in conjunction with accompanying drawing:

[0045] As shown in FIG. 3 , it is a flow chart of the post-processing method of the present invention. Now take the NC machining of steam turbine blade profile as an example to illustrate the specific implementation process of the present invention: First, engineers and technicians use CAM software, such as Pro / E, to compile corresponding blade processing programs according to the processing technology requirements. The corresponding tool path data file is generated by the CAM software, and its suffix is ​​NCL, that is: the blade surface processing program code, see Figure 4, and then the programmed computer executes the program command, and executes the tool path data file in the following order deal with:

[0046] First compile the tool path data file, such as: compile a line of instructions in the tool path data file into the following tw...

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Abstract

A processing method for four-axial linked digital control method and its control system, whose characteristics include the following ones: the cutting speed and path of knife whose dynamic adjustment in the procession has been realized, since the data processing step of cutter dynamic cutting has been added into the usual method and the tool set up error parameter procession step has been added into the movement parameter of machine tool ,effectively avoiding impact to cutter caused by different curvature of leaf-shaped-line cross section of four-axial linked digital control machine tool in the procession, stabilizing the cutting course, making the cutting speed average, prolonging the service life of cutter, assuring the quality of leaf-shaped line.

Description

technical field [0001] The invention relates to a post-processing method of a numerical control machining program, in particular to a post-processing method of a numerical control machining program for machining turbine blades on a four-axis linkage numerical control machine tool and a control system thereof. Background technique [0002] Four-axis linkage CNC machining is mainly used for parts with high processing quality requirements and complex curved lines. For example: aircraft, steam turbines, molds, automobiles and other parts with curved surfaces. The four-axis linkage machining tool path is a complex three-dimensional tool cutting path. The cutting speed of each point is disturbed by many factors, such as: the distance from the cutting point on the rotation axis to the rotation center; the power of the machine tool when the four axes are simultaneously linked; the workpiece The magnitude of the curvature change, etc. The profile of the turbine blade is made of mul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/4099G05B19/404
Inventor 钟成明
Owner DONGFANG TURBINE CO LTD
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