High-precision cylinder sleeve inner wall enclosed special-shaped curve groove processing method

A processing method and technology of cylindrical sleeves, which are applied in the processing field of closed special-shaped curved grooves on the inner wall of high-precision cylindrical sleeves, can solve the problems of poor processing accuracy and low processing efficiency, and achieve improved processing accuracy and efficiency, high precision, and accurate coordinates Effect

Active Publication Date: 2014-03-19
CHANGCHUN EQUIP TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the technical deficiencies and defects of the existing CNC cylindrical sleeve inner wall curved groove processing method, which have poor processing accuracy, low p...

Method used

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  • High-precision cylinder sleeve inner wall enclosed special-shaped curve groove processing method
  • High-precision cylinder sleeve inner wall enclosed special-shaped curve groove processing method
  • High-precision cylinder sleeve inner wall enclosed special-shaped curve groove processing method

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Experimental program
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Effect test

Embodiment Construction

[0059] exist figure 1 In , the six-segment curve equation is to convert the given radian equation into the perimeter to realize the simulation of the equidistance line.

[0060] exist figure 2 , the expanded view of a closed curved trough.

[0061] exist image 3 where are the node coordinates for calculating the equidistance line.

[0062] exist Figure 4 In the trajectory path, the adaptive screening method is adopted to determine the step size:

[0063] (1) Take a series of dense points on the tool path, where the x coordinate is an arithmetic sequence, Figure 4 Midpoint P 1 ,P 2 ,P 3 ,P 4 、…P s

[0064] (2) Determine the starting point of the first cutting step length as p 0 , the end point is p s

[0065] (3) Calculate the coordinates of the pi point (x pi ,y pi ),

[0066] t 0 =t*t 0 ;

[0067] D. pi =sqrt((y ps -y p0 )*( y ps -y p0 )+(x ps -x p0 ) / t 0 *( x ps - x p0 ) / t 0 );

[0068] x =(x ps –x p0 ) / (t*t 0 )+x p0 ;

[0069] (...

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Abstract

The invention relates to a high-precision cylinder sleeve inner wall enclosed special-shaped curve groove processing method, wherein the method is especially suitable for high-precision milling and grinding processing of a cylinder sleeve inner wall enclosed special-shaped curve groove with a large breadth-depth ratio. A mathematical model establishment method for cylinder sleeve inner wall enclosed special-shaped curve groove numerical-controlled programming is brought forward; a self-adaption screening method is used for determining a feed step length calculation method; a method of VC++ program code generation is utilized; and a numerical control system is used for carrying out parameter configuration and a program instruction programming method is used. Therefore, problems processing tool deformation during numerical-controlled milling and grinding wheel wearing and correction during tool vibration control and grinding can be solved; and precise processing of the cylinder sleeve inner wall enclosed special-shaped curve groove with large and variable bound feet is realized. The practical processing result demonstrates that the processing precision and efficiency of the cylinder sleeve inner wall enclosed special-shaped curve groove are improved based on the method.

Description

technical field [0001] The invention relates to a processing method for a closed special-shaped curved groove on the inner wall of a high-precision cylindrical sleeve, and is especially suitable for high-precision milling and grinding processing of a closed special-shaped curved groove on the inner wall of a cylindrical sleeve with a relatively large width and depth. Background technique [0002] Parts with closed curved grooves on the inner wall of cylindrical sleeves are used in aerospace, weapons, chemical and other industries. The curved grooves must meet the requirements of curve angle, depth and width. In the past, special equipment was usually used for processing such parts, and the manufacturing accuracy was poor. The production cycle is long and the cost is expensive. With the development of NC machining technology, NC machining methods can meet the processing requirements of various types of curved grooves, but the modeling and NC programming of such parts are diff...

Claims

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Application Information

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IPC IPC(8): G05B19/4097
Inventor 陈洪海吴庆堂聂凤明王大森李勇史阳东胡宝共康战王凯修冬魏巍段学俊吴焕卢政宇郭波李珊张维杰刘志波
Owner CHANGCHUN EQUIP TECH RES INST
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