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Method for judging correctness of cutter compensation value input to numerical control turning machine tool

A CNC machining machine tool and tool compensation technology, which is applied to metal processing machinery parts, metal processing, metal processing equipment, etc., can solve problems such as large fluctuations in product quality, increased product costs, and errors in tool compensation values, so as to avoid product damage. Out of tolerance or scrap, reduce product cost, eliminate the effect of human error

Active Publication Date: 2014-11-12
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of CNC lathe processing, 65% of the processing errors are caused by the operator's human error. When inputting the tool compensation value based on experience, it often occurs that the input tool compensation value is wrong due to lack of experience or operational errors. The product is out of tolerance or even scrapped, which makes the product quality fluctuate greatly and increases the product cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The wool is a bar with a diameter of 50mm and a height of 100mm. The end face and outer circle need to be processed. After processing, the height of the part is required to be 99±0.2, and the outer circle of the step is Ф , The axial length of the outer circle of the step is 70±0.15.

[0033] The path of the tool is to machine the end face and the outer circle.

[0034] Processing process: According to the above conditions, the maximum machining allowance of the nominal X-axis dimension δxmax=1.5, the maximum machining allowance of the Z-axis nominal dimension δzmax=1, the minimum tolerance of the X-axis machining dimension of the tool path ITx=0.2 , The minimum tolerance of the Z-axis machining dimension ITz=0.4; the minimum X-axis tool compensation value of this tool path is ξXmin=-ITx∕2=-0.1; the maximum X-axis tool compensation value ξXmax=δxmax=1.5 ; The minimum Z-axis tool compensation value is ξZmin=-ITz∕2=-0.2, and the maximum Z-axis tool compensation value is ξZmax...

Embodiment 2

[0038] The wool is an annular part with an outer circle of Ф600mm × an inner circle of Ф520mm × a height of 125mm. The end face and inner circle need to be processed. After processing, the height of the part is required to be 123±0.2 and the inner circle is Ф .

[0039] The path of the tool is to machine the end face and the inner circle.

[0040] Processing process: According to the above conditions, the maximum machining allowance of the nominal X-axis dimension δxmax=1, the maximum machining allowance of the Z-axis nominal dimension δzmax=2, and the minimum tolerance of the X-axis machining dimension of the tool path ITx=0.2 , The minimum tolerance of the Z-axis machining dimension ITz=0.4; the minimum X-axis tool compensation value of this tool path is ξXmin=-δxmax=-1; the maximum X-axis tool compensation value ξXmax=ITx∕2=0.1 ; The minimum Z-axis tool compensation value is ξZmin=-ITz∕2=-0.2, and the maximum Z-axis tool compensation value is ξZmax=δzmax=2; according to the siz...

Embodiment 3

[0044] The wool is an annular part with an outer circle Ф660mm×20mm axial length shoulder, the adjacent outer circle is Ф600mm, the total height is 125mm, and the inner circle is Ф550. The outer circle of the shoulder and the back of the shoulder need to be processed. After processing, the height of the part is 123 ±0.2, the outer circle of the shoulder is Ф , The axial length of the shoulder is 16±0.1, the adjacent outer circle is Ф .

[0045] The cutting path is to process the outer circle of the shoulder, the back of the shoulder and the adjacent outer circle.

[0046] Processing process: According to the above conditions, the maximum machining allowance of the nominal X-axis dimension δxmax=2, the maximum machining allowance of the Z-axis nominal dimension δzmax=2, and the minimum tolerance of the X-axis machining dimension of the tool path ITx=0.1 , The minimum tolerance of the Z-axis machining dimension ITz=0.2; the minimum X-axis tool compensation value of this tool path i...

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PUM

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Abstract

The invention belongs to a numerical control turning technology, which relates to a method for judging correctness of a cutter compensation value input to a numerical control turning machine tool. The method for judging correctness of the cutter compensation value input to the numerical control turning machine tool is characterized by comprising the steps of: determining a cutter compensation value range of each feed line of a part to be machined; compiling a machining program according to a central difference and an imagined tool nose in light of size of the part to be machined; storing the cutter compensation value range in X-axis and Z-axis directions to the machining program; inputting the special cutter compensation value to a cutter abrasion storage area; and adding a cutter compensation value judgment module in an initial part of the machining program. According to the method for judging correctness of the cutter compensation value input to the numerical control turning machine tool provided by the invention, the product which is overproof or rejected caused by a mistaken input cutter compensation value is avoided, undulation of product quality is reduced, and the product cost is lowered.

Description

Technical field [0001] The invention belongs to numerical control lathe technology, and relates to a method for judging whether an input numerical control lathe machine tool compensation value is right or wrong. Background technique [0002] At present, in the process of CNC turning, 65% of the machining errors are caused by the operator's human error. When inputting the tool compensation value based on experience, it often happens that the input tool compensation value is incorrect due to insufficient experience or operating error. The product is out of tolerance or even scrapped, resulting in greater fluctuations in product quality and increasing product costs. Summary of the invention [0003] The purpose of the present invention is to propose a method for judging whether the input tool compensation value is right or wrong, so as to avoid the product out of tolerance or scrap due to the wrong input tool compensation value, reduce product quality volatility, and reduce product c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q15/00
Inventor 吴惠雯汤丽唐小平任景刚余杰何坚杨晓彤
Owner AECC AVIATION POWER CO LTD