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Method for quickly adjusting servo dynamic parameters of five-axis linkage numerically controlled milling machine

A CNC milling machine, fast adjustment technology, applied in the direction of automatic control devices, metal processing machinery parts, metal processing, etc., can solve the problems of high cost of trial cutting, complicated adjustment of servo dynamic parameters of CNC machine tools, waste of productivity and other problems, and achieve good precision The effects of control and productivity

Active Publication Date: 2012-07-04
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
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  • Application Information

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Problems solved by technology

Due to the coupling and matching problems in the mechanical and electrical systems of the five-axis linkage CNC milling machine during use, the adjustment of the servo dynamic parameters of the CNC machine tool is more complicated; Machine tool adjustment usually adopts the traditional trial cutting-adjustment-re-trial cutting cycle method until the part accuracy requirements are met
Therefore, the blindness of machine tool parameter adjustment is large, lack of scientific guidance, long adjustment cycle, low production efficiency, especially for large-scale trial cutting costs, which greatly wastes productivity

Method used

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  • Method for quickly adjusting servo dynamic parameters of five-axis linkage numerically controlled milling machine

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Embodiment Construction

[0022] Attached below figure 1 Describe in detail the specific implementation process of the present invention with specific embodiments The method for quickly adjusting the servo dynamic parameters of a five-axis linkage CNC milling machine includes the following steps:

[0023] Step 1: Set the dynamic factor value of CNC milling machine (position loop gain Kp, speed loop gain Kv, speed a, jerk ), input the workpiece processing program of the CNC milling machine, and calculate the actual motion trajectory of each movement axis (X, Y, Z, A, B) of the CNC milling machine;

[0024] The motion axis of CNC milling machine can be expressed as the linear axis in the three directions of X, Y, and Z and the rotation axis in the three directions of A, B, and C. A, B, and C represent the rotation around the X, Y, and Z linear axes respectively. Axis, five-axis CNC milling machine includes X, Y, Z linear axis in three directions and any two of A, B, C three rotation axes, in this embod...

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Abstract

The invention relates to a method for quickly adjusting servo dynamic parameters of a five-axis linkage numerically controlled milling machine, which comprises the following steps of: step 1, setting a dynamic factor value of the numerically controlled milling machine, and obtaining actual movement loci of all movement axes of the numerically controlled milling machine by calculation; step 2, according to the actual movement loci of all the movement axes, obtaining the actual movement locus of a cutter of the numerically controlled milling machine by calculation; step 3, according to the actual movement locus of the cutter of the numerically controlled milling machine, obtaining the position locus of a point formed by a milling workpiece by calculation; step 4, according to the position locus of the point formed by the milling workpiece obtained in the step 3, obtaining the locus of a plane formed by the milling workpiece by calculation; step 5, according to the locus of the plane formed by the milling workpiece obtained in the step 4 and the ideal molding surface data of the workpiece, obtaining the milling accuracy of the workpiece by calculation; and step 6, if the milling error of the workpiece is within the range allowed by parts, not adjusting the dynamic factor value of the numerically controlled milling machine. The method has the beneficial effects of having better accuracy control effect and working efficiency.

Description

technical field [0001] The invention belongs to the field of five-axis linkage numerical control machine tool manufacturing, and in particular relates to the technical field of milling processing of five-axis machine tools for large structural parts. Background technique [0002] Five-axis linkage CNC machine tool means that there are five motion axes on one machine tool, including three linear axes and two rotary axes. Points, coordinated movement for processing, five-axis linkage CNC milling machines are mostly used for processing complex curved surface parts or large structural parts. Due to the coupling and matching problems in the mechanical and electrical systems of the five-axis linkage CNC milling machine during use, the adjustment of the servo dynamic parameters of the CNC machine tool is more complicated; Machine tool adjustment usually adopts the traditional trial cutting-adjustment-re-trial cutting cycle method until the precision requirements of the parts are m...

Claims

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Application Information

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IPC IPC(8): B23Q15/00
Inventor 王伟
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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