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 in metal processing machinery parts, metal processing, metal processing equipment, etc., can solve the problems of large fluctuation of product quality, increased product cost, wrong tool compensation value, etc., to avoid product quality. Out of tolerance or scrap, eliminate human error, reduce product cost

Active Publication Date: 2013-01-09
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 machining errors are caused by the operator's human error. When inputting the tool compensation value based on experience, it often occurs that the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] Bars with a wool material of Ф50mm and a height of 100mm need to process the end face and outer circle. After processing, the height of the part is required to be 99±0.2, and the outer circle of the step is The axial length of the outer circle of the step is 70±0.15.

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

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

Example Embodiment

[0037] Example 2

[0038] The wool material is a ring with outer circle Ф600mm × inner circle Ф520mm × height 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

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

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

Example Embodiment

[0043] Example 3

[0044] The wool material is an annular part with an outer circle of Ф660mm × an axial length of 20mm, 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 required to be 123 mm. ±0.2, the outer circle of the shoulder is The axial length of the shoulder is 16±0.1, and the adjacent outer circle is

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

[0046] Machining process: According to the above conditions, the maximum machining allowance of the nominal dimension in the X axis is δxmax=2, the maximum machining allowance of the nominal dimension in the Z axis is δzmax=2, and the minimum tolerance of the machining dimension in the X axis of the tool path is ITx=0.1 , the minimum tolerance of Z-axis machining dimens...

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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 the numerical control lathe technology, and relates to a method for judging the correctness and error of the tool compensation value input to a numerical control lathe processing machine tool. Background technique [0002] At present, in the process of CNC lathe processing, 65% of the machining 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. Contents of the invention [0003] The purpose of the present invention is to propose a method for judging the correctness of the input tool compensation value of a CNC machining machine tool, so as to avoid product out-of-tolerance or scrapping due to the wrong input tool compensatio...

Claims

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Application Information

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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
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