Abstract
The precision of lathe processing is directly related to the quality of machined parts. At present, there are many types of lathes, and the floors have reached a relatively high level. However, this situation is not ideal due to the lack of advanced control technology in the machine tool industry. This paper will analyze the effect of imposing accuracy on the machining accuracy of Nantong horizontal boring machine and propose the corresponding improvement measures.
1 Introduction
At present, the Nantong horizontal boring machine is an advanced and open CNC surface boring machining center. With the further development of technology, the numerical control technology of the Nantong horizontal boring machine has reached a relatively high level. However, due to the lack of technical ability and flexible control technology, the machining accuracy of the machine is still affected. It is still in the intermediate control technology stage, and the absolute accuracy and reliability of the machine cannot be guaranteed. Therefore, in this paper, the effect of imposing accuracy on the machining accuracy of Nantong horizontal boring machine will be analyzed, and the corresponding improvement measures will be proposed.
2 Analysis of Effect of Accuracy Input on Machining Accuracy
2.1 Effects of Position
In the case of obtaining the same height of clearance, the machining accuracy is also affected by the precision of the position. Generally speaking, the accuracy of the positioning scale is less affected by the error caused by the flattening, which is better than the precision required for the parallelism, and the control accuracy of the positioning itself is higher. The more accurate the Nantong horizontal boring machine is, the more accurate the machining accuracy will be.
2.2 Effects of Pressure
The pressure of Nantong horizontal boring machine is also a major factor affecting machining accuracy. If the pressure is insufficient, the contact surface between the tool and the workpiece is not sufficient, resulting in inaccurate cutting and low precision. Therefore, in order to ensure the machining accuracy, the pressure must be strictly controlled.
2.3 Effects of Direction
The precision of the direction is an important factor affecting the machining accuracy of the Nantong horizontal boring machine. If the direction is not accurate, the clearance of the machining cannot be effectively cut and the machining accuracy cannot be guaranteed.
3 Improvement Measures
3.1 Improvement of Positioning Accuracy
In order to improve the positioning accuracy, first of all, the flatness of the lathe bed must be ensured. For the Nantong horizontal boring machine, before being used, it is necessary to check the accuracy of the marking column and the calibrated flatness of the machine tool, and adjust it in time if necessary.
Secondly, the installation of the ladder can also improve the positioning accuracy. According to the requirements of Nantong horizontal boring machine, the ladder must be installed and adjusted strictly, and it is impossible to adjust it according to the parts and components.
Finally, the accuracy of the machine tool spindle should also meet the requirements. When installing and debugging, the accuracy of the spindle should be checked and adjusted in time, and the preload tension should be kept within the specified range.
3.2 Improvement of Pressure Accuracy
In view of the pressure problem of the Nantong horizontal boring machine, the cutting force of the cutting tool must be flexibly adjusted and the rigidity of the cutting tool must be improved. If conditions permit, the cooling liquid can be added to ensure the cooling effect of the cutting tool and further improve the stability of the cutting force, prevent tool wear and improve the machining accuracy.
3.3 Improvement of Directional Accuracy
To improve the accuracy of the Nantong horizontal boring machines direction, firstly, it is necessary to strengthen the detection of the matching accuracy of the skew spline and the bearing hole, and adjust the locating pin or adjust the clearance when the installation is not good. Secondly, when the machine tool is in use, an inspection method should be adopted to find out whether the screw breakage and the slide wear are in time, and if necessary, replace or compensate.
4 Conclusions
The research on the effect of accuracy input on the machining accuracy of Nantong horizontal boring machines shows that the flatness of the lathe bed, the installation and adjustment of the ladder and the accuracy of the spindle are important factors affecting the machining accuracy. At the same time, in order to improve the pressure accuracy and directional accuracy, attention should also be paid to the adjustment of the cutting force and the matching accuracy of the spline and the bearing hole. It is expected that through the research results, the Nantong horizontal boring machine will be improved and the machining accuracy of the machine will be further improved.
