Numerical control machining method capable of guaranteeing machining command information to be correct

A processing method and processing instruction technology, applied in the direction of program control, computer control, general control system, etc., can solve problems such as expensive parts, large economic losses, and wrong input of tool compensation values, and achieve huge economic and social values. Save indirect losses and ensure smooth progress

Inactive Publication Date: 2013-06-12
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The use of tool radius or length compensation programming brings benefits to the processing of parts, but it also brings a serious problem to the enterprise: the quality is easy to lose control
In the NC machining process of parts, the operator manually enters data and intervenes in the NC machining process, which is likely to cause the problem of inputting wrong tool compensation values. According to statistics, in a medium-sized NC machining enterprise, every year There are at least 7 or 8 quality accidents caused by wrong tool compensation radius value and tool length value. Although the number is not many, in aviation manufacturing enterprises, due to the high value of parts, the economic loss caused is also very large, which has accumulated over the years. The damage caused is staggering
While causing great losses, it also affects the smooth progress of production and disrupts the normal production rhythm of the factory, especially for some single-piece production parts, the scrapping of parts will bring greater consequences

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A numerical control processing method for ensuring the correctness of processing command information, based on Siemens 810D and 840D numerical control systems; it is characterized in that: in the numerical control processing program using tool compensation, a limit link is added to set a reasonable range for allowing the input of tool compensation values ​​so that Ensure the safety of parts processing.

[0037]

[0038] When the tool compensation command is tool radius compensation, the following specific methods to prevent errors can be used, and the following requirements are specifically met:

[0039] (1) According to the management method of the machine tool, use the GETSELT() command to provide the T number for the tool selected by the spindle in the current machining program, and read the compensation data of the tool, which can be divided into two situations:

[0040] a) When using tool naming for management, such as T="T_D8R0.5", the calling method of GETSELT(...

Embodiment 2

[0082] A numerical control machining method for ensuring correct machining command information, based on Siemens 810D and 820D numerical control systems; characterized in that: in the numerical control machining program using tool compensation, a limit link is added to set a reasonable range for allowing the input of tool compensation values ​​so that Ensure the safety of parts processing.

[0083] When the tool compensation command is tool radius compensation, the second error prevention method below can also be used, and the following requirements are specifically met:

[0084] In the tool radius compensation NC program, according to the selected tool size in advance, combined with the machining plan, through the tool radius compensation parameter variable $TC_DP6, the corresponding compensation value is assigned to the machine tool through the program parameters instead of manual input by the operator. Even if the operator manually enters, it will be replaced by the program...

Embodiment 3

[0105] The tool length compensation error-proofing technology is to add a reasonable range to allow the input of the tool length compensation value in the tool length compensation NC program, so as to ensure the safety of the part processing process. Specific steps:

[0106] ⑴. According to the management method of the machine tool, use the GETSELT() command to provide the T number for the tool selected by the spindle of the current machining program, and read the compensation data of the tool. There are two situations:

[0107] a) When using tool naming for management, such as T=″T_D8R0.5″, the calling method of GETSELT() is GETSELT (TN).

[0108] b) When the tool number is used for management, such as T1, the calling method of GETSELT() is GETSELT(1).

[0109]

[0110] (2) Before the program cuts, by calling the tool length compensation command $TC_DP21, read the tool length compensation value manually input by the operator in the machine tool, and compare it with the uppe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A numerical control machining method capable of guaranteeing machining command information to be correct is based on a Siemens 810 D and 820 D numerical control system. The numerical control machining method capable of guaranteeing the machining command information to be correct is characterized in that a restriction link which allows the reasonable range of a cutter compensation value to be input is additionally set in the numerical control machining program of cutter compensation. The technique required in the method does not need additional investment. When the mistake proofing technique is adopted in numerical control machining, hidden quality problems caused by the fact that operators manually input radius compensation and length compensation values are avoided. Not only are economic losses caused by scrapped products or very poor products avoided, but also the production process can go on smoothly. Indirect losses caused by handling the very poor products are further avoided. The numerical control machining method has enormous foreseeable economic value and social value.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, and in particular provides a numerical control machining method for ensuring correct machining instruction information. Background technique [0002] In CNC machining, especially in the CNC machining of complex and thin-walled parts on some aero-engines, in order to ensure dimensional accuracy and reduce the influence of deformation on the machining process of parts, part of the size of the parts is often processed by tool compensation. In the finishing stage of the process, the operator adjusts the tool radius or length compensation value to ensure the size of the part according to the rough machining measurement results. This programming method enables the rough machining and finishing machining of the same size of the part to only need to compile one program. The processing is relatively flexible. For the parts in the development stage, this flexible processing method can impr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/404
Inventor 周代忠胡晓松陈亚莉
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap