CNC machine tool debugging work
Editorial department

Author:

time:
2019-01-01

More than 80% of CNC machine tools must be commissioned on site before they can meet their technical specifications; 80% of the machine tools that have been used are in abnormal super-performance after a period of operation, and may exceed their potential ability. Therefore, it is necessary to conduct a comprehensive inspection when the new equipment is accepted, so that the machine tool can be guaranteed to achieve its technical specifications and expected quality and efficiency. After using the new equipment for half a year, it needs to be tested and debugged again. After that, it can be tested once a year. The machine tool error is regularly checked and the pitch and backlash are corrected in time.


1, machine tool preparation

1) Adjust the horizontal position of the machine bed, which is divided into coarse adjustment and fine adjustment of the cast iron flat foundation. 2) Adjust the relative position of the reassembled main moving parts to the main unit. 3) Add lubricating oil, hydraulic oil, cutting fluid as required, and turn on the air supply.

2, power test

After powering up the equipment, observe whether the various parts of the machine are normal. After the power-on test is normal, the automatic tool changer of the machine tool, main motion, cast iron platform movement, various operating functions, system parameters, safety measures and common instructions can be observed. Check the performance.

3, machine tool trial run

Prepare a 'test machine' program for the machine tool, so that all parts of the machine tool can be fully exercised, running 8h every day, running continuously for 2~3d, or running continuously for 24h1~2d. In addition to the malfunction caused by the operation error, the test machine does not allow any other malfunction of the machine. The purpose is to allow the machine to run automatically for a long time under a certain load to fully check the function of the machine and the reliability of the work.

4, accuracy test

CNC machine tool accuracy inspection includes geometric accuracy and cutting accuracy. Geometric accuracy, also known as static accuracy test, is a comprehensive reflection of the integrated assembly shape error of the key components of the machine tool. It should be reciprocated several times in each axis of the machine tool. After the spindle runs at a medium speed for 10 minutes, it is carried out in the preheating state of the machine. Commonly used inspection tools include precision level, precision square box, square ruler, flat ruler, parallel light pipe, micrometer, micrometer and high precision spindle mandrel. The inspection tool must be one level higher than the measured geometry accuracy.

CNC machine tool cutting accuracy inspection, also known as dynamic precision inspection, is a comprehensive assessment of machine tool geometry accuracy and positioning accuracy under cutting machining conditions. Cutting accuracy inspection can be divided into single-piece machining accuracy inspection and processing of a standard comprehensive test piece accuracy test.

CNC equipment has the characteristics of high speed, high efficiency and high precision in the manufacturing industry, which can bring better returns to enterprises and is regarded as a treasure by enterprises. The relevant technical personnel are required to properly arrange the assembly equipment and perform careful debugging and maintenance so that the equipment can exert its maximum performance.


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