Numerical control program post-processing method for five-coordinate linkage machine tools

A numerical control program and post-processing technology, applied in the direction of digital control, electrical program control, etc., can solve the problems of scrapped workpiece, error-prone, increased processing cost, etc.

Active Publication Date: 2013-04-17
DONGFANG TURBINE CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

But it also brings a new problem, that is, the CNC program coordinates are rotated synchronously with the turntable of the bed. When A=0 and A=180, the direction of program fine-tuning is just opposite. When A is between 0-180, the program cannot be fine-tuned in one direction. It must be converted by trigonometric functions, and several coordinates can be adjusted at the same time. The adjustment efficiency is very low, the effective utilization time of the machine tool is reduced, and the processing cost is increased. Moreover, the machine operator cannot judge the adjustment direction, and it is easy to make mistakes, resulting in the scrapping of the workpiece.

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  • Numerical control program post-processing method for five-coordinate linkage machine tools
  • Numerical control program post-processing method for five-coordinate linkage machine tools
  • Numerical control program post-processing method for five-coordinate linkage machine tools

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Embodiment Construction

[0063] The essence of the CNC machine tool is to control the movement of each axis of the machine tool through the CNC system to realize the relative motion between the workpiece and the tool, thereby completing a space mechanism for cutting processing. The foundation, such as the kinematics model of the machine tool must be used in the post-processing of NC programming, machining accuracy control, feed speed control and machine tool geometric error compensation. The kinematics model of the general machine tool structure and its solution method can be used to solve the machine tool kinematics.

[0064] For the procedure of this method, see figure 1 , the invention point has the following two points:

[0065] 1. The method of quoting the geometric error compensation parameters of the machine tool by the numerical control program is used to realize the common use of the code on the machine tools of the same system.

[0066] Use the R parameter to write the solution formula of ...

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Abstract

The invention discloses a numerical control program post-processing method for five-coordinate linkage machine tools, which includes the following steps: (1) a machine tool geometric error compensation parameter method is adopted to compile a numerical control program, so that codes can be universally used on machine tools with like systems; (2) the numerical control program points generated by the machine tool software are reversely calculated into the points in a programming coordinate system, the points in the programming coordinate system are then normally calculated into machine tools with other systems, and therefore the codes are universally used on machine tools with various systems. The method solves the problem that programs complied in the conventional mode cannot be universally used, and also solves the contradiction between the RPCP (Rotation Around Part Center Point) and RTCP (Rotation Around Tool Center Point) programming modes and the conventional program-debugging habit of workshop workers, debugging is simple, rapid and reliable, and mistakes are prevented.

Description

Technical field: [0001] The invention relates to a post-processing method of a numerical control program of a five-coordinate linkage machine tool, which belongs to the technical field of numerical control processing. technical background: [0002] For special-shaped workpieces with complex profiles, such as steam turbine blades, it is necessary to use five-coordinate linkage machine tools to process them. When the batch of workpieces is large, it is necessary to use many machine tools to process them at the same time. For processing enterprises, it is necessary to consider meeting the needs of processing various special-shaped workpieces, and configure five-coordinate linkage machine tools in a targeted manner, such as Siemens system, FANUC system, MAZAK system, etc. The machine tools of each system have multiple structures. It may be equipped with too many five-coordinate linkage machine tools of the same system and structure, so we have to use five-coordinate linkage mach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18
Inventor 钟成明李启元甘娜梁鹏熊凯
Owner DONGFANG TURBINE CO LTD
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