Optimization method of servo parameters of rotary table based on small displacement direct drive torque
An optimization method and small displacement technology, applied in the direction of digital control, program control, instrument, etc., can solve the problems of not meeting the indexing accuracy requirements of CNC gear machine tool motors, long debugging time, poor adjustment effect, etc., to achieve simplicity and convenience Effects of equipment measurement analysis, shortened adjustment time, and reduced workload
Active Publication Date: 2021-02-05
NANJING GONGDA CNC TECH +1
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Problems solved by technology
[0005] Traditional debugging methods include empirical method and drive automatic adjustment. The empirical method to adjust servo drive parameters not only takes a long time to debug, but also has poor adjustment effect
Although the automatic adjustment of the drive saves a lot of time in debugging, the actual debugging effect often cannot meet the requirements of the numerical control gear machine tool for the indexing accuracy of the motor
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[0044] Next, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.
[0045] Such as Figure 1 to Figure 6 , based on the small displacement direct drive torque turntable servo parameter optimization method, mainly includes the following steps:
[0046] S01: Fix the electronic dial indicator (1) on the main shaft (4) or other non-moving areas;
[0047] S02: When the turntable (2) is at zero position, the measurement plane of the calibration standard block (3) is parallel to the Y axis of the turntable (2);
[0048] S03: According to the motion characteristics of the turntable (2), write the motion program of the turntable (2) based on the small displacement;
[0049] S04: Design an orthogonal test table, and measure according to the orthogonal test table;
[0050] S05: Run the motion program, read the value on the electronic dial indicat...
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The invention relates to a method used for numerical control direct drive moment rotary table servo drive parameter optimization, in particular to a direct drive moment rotary table servo parameter optimization method based on small displacement. The method comprises the following steps: S01, fixing an electronic dial indicator on a principal axis or other non-motion areas; S02, at a zero positionof a rotary table, correcting a measuring plane of a standard block to be parallel to a Y axis of the rotary table; S03, according to motion characteristics of the rotary table, writing a rotary table motion program based on the small displacement; S04; designing an orthogonal test table; S05, obtaining a location deviation value of a C axis rotary table according to a theoretical displacement value and a practical reading value, and obtaining a repeated location deviation value according to a reading value after a return stroke of the C axis rotary table; and S06, adjusting servo parametersand verifying the servo parameters. By regulating servo drive parameters, location accuracy, repeated location accuracy and servo rigidity of a direct drive adjustable moment motor are further optimized, the method provided by the invention can be widely used for motor servo parameter optimization of all kinds of machine tools, debugging time is shortened, and working efficiency is improved.
Description
technical field [0001] The invention relates to the fields of positioning accuracy, repeat positioning accuracy and servo rigidity optimization of a turntable of a numerically controlled gear machine tool, and provides a method for adjusting an optimal combination of servo drive parameters. Specifically, it involves CNC machine tools to improve positioning accuracy, repeat positioning accuracy and servo rigidity by finding better servo drive parameters. More specifically, it relates to the optimization of servo drive parameters for direct drive turntables. [0002] technical background [0003] The CNC gear machine tool is a compound processing equipment for processing various common gears, and the movement accuracy of the machine tool is one of the important guarantees to ensure the accuracy of the machined parts. Nowadays, the linear axis and rotary axis of many precision CNC machine tools adopt the most advanced direct drive (direct drive) technology. Precision and compl...
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IPC IPC(8): G05B19/414
CPCG05B19/4142G05B2219/34013
Inventor 洪荣晶林晓川于春建夏长久
Owner NANJING GONGDA CNC TECH