Numerical control machine tool main shaft unit thermal-mechanical coupling error measuring system
A numerical control machine tool and thermal-mechanical coupling technology, applied in the direction of measuring/indicating equipment, metal processing machinery parts, metal processing equipment, etc., to achieve the effect of strong reliability, high measurement accuracy, and real-time error compensation
Active Publication Date: 2019-08-02
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology
[0003] Aiming at the above-mentioned problems existing in the existing CNC machine tools, a thermomechanical coupling error measurement system for the CNC machine tool spindle unit is provided, which aims to solve the real-time compensation of the thermal coupling error of the spindle unit of the CNC machine tool, the data signal acquisition and analysis in the early stage
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[0029] The invention will be further described below in conjunction with the accompanying drawings and specific implementation examples: a thermal coupling error measurement system for the spindle unit of a CNC machine tool, such as figure 1 , figure 2 , image 3 As shown, it specifically includes: CNC machine tool spindle 1, temperature sensor 2, CNC machine tool spindle housing 3, workpiece fixture 6, vise 7, three-way force sensor 8, laser displacement sensor fixture 9, extended tool handle 10, and disc stop 11 , Laser displacement sensor, signal data acquisition system and PC.
[0030] The CNC machine tool spindle 1 is located in the CNC machine tool spindle housing 3, the temperature sensor 2 is placed on the outer surface of the CNC machine tool spindle housing 3, and the workpiece 4 to be processed is fixed on the workpiece fixture 6 by screws 5, and the workpiece fixture 6 is connected to the three-way The force sensors 8 are connected, the three-way force sensor 8 ...
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The invention provides a numerical control machine tool main shaft unit thermal-mechanical coupling error measuring system and belongs to the technical field of precise machine tool machining. The numerical control machine tool main shaft unit thermal-mechanical coupling error measuring system specifically comprises a numerical control machine tool main shaft, a temperature sensor, a numerical control machine tool main shaft shell, a workpiece clamp, a jaw vice, a three-direction force sensor, a laser displacement sensor clamp, an extending knife handle, a light blocking disk, a laser displacement sensor, a signal data acquiring system and a PC. The temperature sensor, the three-direction force sensor and the laser displacement sensor are all connected with the signal data acquiring system, and the signal data acquiring system is connected with the PC. The numerical control machine tool main shaft unit thermal-mechanical coupling error measuring system solves the numerical control machine tool main shaft unit thermal-mechanical coupling error data measuring problem, the sensors are simple in arrangement, transportability is high, the laser displacement sensor is high in measuring precision, reliability is high, and a basis is laid for subsequently building a thermal-mechanical coupling error model, achieving real-time error compensation and improving the machining precision ofa numerical control machine tool.
Description
technical field [0001] The invention belongs to the technical field of precision machine tool processing, and in particular relates to a thermodynamic coupling error measurement system for a spindle unit of a numerically controlled machine tool. Background technique [0002] The measurement of the error of the spindle unit of the CNC machine tool is the premise and basis for the establishment of the error model and real-time compensation. In the actual production and processing process, the errors of CNC machine tools can be roughly divided into geometric errors, thermal deformation errors, force deformation errors, control errors, positioning errors, etc. Among them, geometric errors and control errors are the original errors of the machine tool, thermal deformation errors and The force deformation error is the error generated in the processing process, which is called the processing error. The original error and machining error of the machine tool spindle are the main fac...
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IPC IPC(8): B23Q17/00B23Q17/24
CPCB23Q17/00B23Q17/24
Inventor 岳海涛郭辰光李强赵丽娟丁广硕
Owner LIAONING TECHNICAL UNIVERSITY