A Rapid Measurement Method of Geometric Error of Translational Axis of Machine Tool Based on Laser Interferometer
A technology of laser interferometer and measurement method, which is applied in the direction of measuring devices, instruments, and optical devices, etc., which can solve problems such as calibration errors, difficult installation of laser heads and reflectors, and achieve the effect of simple operation
Active Publication Date: 2019-09-13
SOUTHWEST JIAOTONG UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the step-by-step body diagonal method, there is a calibration error between the laser and the mirror, and the installation of the laser head and the mirror is difficult
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0069] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0070] attached figure 1 Shown is the flow chart of the method for rapid measurement and identification of geometric errors of translational axes based on laser interferometer measurement in the present invention, and the Y-axis of a machine tool is taken as an example to illustrate the method of the present invention.
[0071] Step 1. Determine the initial installation position of the laser interferometer according to the type of translational axis to be measured, and determine the relative positions of laser A and laser B of the laser interferometer, including steps:
[0072] Step 1.1. Determine the Y-axis type of the translational axis to be measured as y;
[0073] Step 1.2, install the laser interferometer so that the straight line where the laser interferometer laser A and laser B are located is perpendicular to the y direction of the mac...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a laser interferometer-based rapid measurement method for the geometric error of a translational axis of a machine tool, and relates to the technical field of error measurement and identification of a numerical control machine tool. Determine the initial installation position of the laser interferometer, drive the translation axis, and collect the readings of the laser interferometer on the travel of the translation axis: set n measuring points equally spaced on the travel of the translation axis, where n>2; drive the translation axis to each The measurement point is to collect the readings of laser A and laser B of the laser interferometer. At the measurement point p, adjust the laser interferometer to the second installation position, so that the distance between the second installation position and the initial installation position is L; drive the translation axis, Collect the readings of the laser interferometer on the stroke of the translation axis, and calculate the linear error of the movement direction of the translation axis at each measurement point at the measurement point p; according to the initial installation position, combined with the reading A of the laser A of the laser interferometer at the second installation position 2 and the reading A of the laser interferometer laser A at the initial installation position 1 , to calculate the linear error in the direction of the translational axis at each measurement point.
Description
technical field [0001] The invention relates to the technical field of error measurement and identification of numerical control machine tools. Background technique [0002] Geometric error is the main error source affecting the machining accuracy of machine tools, and compensating for geometric errors of machine tools has become an important means to improve the machining accuracy of machine tools. The measurement and identification of geometric error elements is the basis of geometric error compensation technology and one of the prerequisites for accuracy improvement. [0003] The existing technology needs to be further improved in terms of speed and completeness when measuring and identifying the geometric error elements of the motion axis. In practice, the 9-line method and 12-line method based on laser interferometers are mostly used to measure the errors of multiple lines in the workspace to solve the geometric error elements of the translation axis, which requires mu...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00
Inventor 付国强谷腾达高宏力宋兴国曹中清
Owner SOUTHWEST JIAOTONG UNIV