Digital control machining operation error prevention technology

A technology of operating errors and CNC machining machine tools, applied in digital control, electrical program control, etc., can solve problems such as reduction, huge loss, and economic loss of enterprises

Active Publication Date: 2008-04-30
XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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Problems solved by technology

[0003] With the development of NC machining technology and the technological progress of NC process programming, the proportion of errors caused by NC process programming has been greatly reduced; at the same time, the quality loss caused by NC operation errors has gradually become the main contradiction
Especially at present, aviation products are gradually becoming more complicated and integrated, and the processing equipment is becoming more and more high-speed, so the losses caused by operating errors are very huge.
Every year in the CNC industry, a large number of

Method used

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  • Digital control machining operation error prevention technology
  • Digital control machining operation error prevention technology
  • Digital control machining operation error prevention technology

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Embodiment Construction

[0015] Referring to accompanying drawing 1, with respect to the machine tool workbench 1 of numerical control processing machine tool, machine tool coordinate system 4 is constant, and workpiece coordinate system 3 changes with the change of workpiece 2 to be processed, check block 6 is fixed on the machine tool workbench 1 is a replaceable tapered standard block. The coordinate value of the check block in the machine tool coordinate system 4 is a constant fixed value. The position of the check block 6 in the workpiece coordinate system 3 can be determined by the system parameter Call to realize the conversion from the machine coordinate system to the workpiece coordinate system.

[0016] Before the CNC machining system executes the part processing program, after setting the workpiece coordinate system, it first calls the error prevention check program to make the machining tool 5 move along the tapered surface of the error check block 6 for inspection, and determine the use sp...

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Abstract

The invention aims at providing an NC-operation error preventing technology. A standard calibration block is arranged on the worktable of an NC machine tool, an operating check procedure for checking block feed before a workpiece processing procedure is increased, so that automatic detecting can be realized for tools and coordinate system setting through simple system macro procedure calling, thereby avoiding economic loss caused by misoperation in the NC process. The development of error-checking subroutine is mainly based on application system parameters, system variables and counting and logic computing, breaking away specific processing parts, thereby having generality for all parts on a specific machine. Error-checking subroutines are stayed in the system of the CNC machine tool, thereby just simply calling is needed for processing any parts.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to the technology for preventing operation errors in numerical control machining. Background technique [0002] As we all know, CNC machining is to use the digital control system to complete the machining of the entire part on the machine tool. The whole process of machining, including tool movement, tool change, speed change, direction change, and parking, is automatically completed. It is a computer program. The accuracy, precision and processing efficiency of modern processing methods are unmatched by traditional mechanical processing. [0003] With the development of NC machining technology and the technological progress of NC process programming, the proportion of errors caused by NC process programming has been greatly reduced; at the same time, the quality loss caused by NC operation errors has gradually become the main contradiction. Especially at presen...

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Application Information

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IPC IPC(8): G05B19/18
Inventor 周文东郑小伟田辉
Owner XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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