【 Building materials network 】As a Stone Engraving machine As a big manufacturing country, China's stone carving machine import deficit has always existed. Although the production of domestic stone carving machines is large, the product structure lags behind the market demand. The rapid development of domestic CNC stone carving machines has made great efforts to narrow the gap with international CNC stone carving machines. One of the most important points is the improvement of reliability.

The reliability of stone carving machine products is the key to influence the market share key factor. In recent years, Chinese stone carving machine manufacturers have implemented reliability technology Machine tool The reliability level of is growing steadily, but there is still a significant gap compared with similar products in developed countries. In order to change the current situation of China's stone carving machine industry, the implementation of major projects will promote the reliability level of domestic high-end CNC stone carving machine tools to approach or reach the world's advanced level, solve the engineering problems that hinder the development of CNC machine tool industry technology, and reverse the passive situation of international market competition.

The main reason why users of CNC stone engraving machines in many industries in China do not choose domestic stone engraving machines is that the reliability of products cannot meet user requirements. The fierce competition in the stone carving machine market is mainly the competition of product reliability. Whether it can occupy the market is the key to the survival and development of China's CNC equipment industry. Especially in the situation of increasing imports, the improvement of product reliability is of great significance for domestic CNC equipment to win in the international market competition and promote the development of national industry.

At present, the research and development of domestic numerical control stone carving machine is mainly aimed at high-end, pursuing high-speed, precision and multi axis combined machining. However, with the increase of composite functions and the introduction of intensive technologies, unreliable factors and hidden troubles increase. A highly reliable stone engraving machine can receive the effect of several machine tools running at the same time, which can reduce the user's downtime losses and maintenance costs. The probability of failure increases during operation and use, and its advanced performance and functions cannot be maintained, reducing or losing use value.

In the numerical control stone carving machine, the motorized spindle usually adopts the frequency conversion speed regulation method. At present, there are three main control modes: ordinary frequency conversion drive and control, vector control drive and control, and direct torque control.

The common frequency conversion is scalar drive and control, and its drive control characteristic is constant torque drive, and the output power is proportional to the speed. The dynamic performance of ordinary frequency conversion control is not ideal, the control performance is poor at low speed, the output power is not stable enough, and the C-axis function is not available. But it is cheap and simple in structure, and is generally used for grinders and ordinary high-speed milling machines.

The reliability of CNC stone carving machine products is a quality attribute exposed during use and on-site operation. Considering the time and environmental factors of product use, the reliability level of unused products cannot be truly evaluated. To improve the reliability of numerical control stone carving machine is to reduce or avoid various failures that occur in the working process of products.

In many cases, the prominent problems affecting the reliability of domestic CNC stone carving machines are often the manufacturing process, assembly process, selection of matching parts and purchased parts, as well as the failure of early failures, which account for a large proportion of failures. Only by emphasizing the reliability test method, strengthening the reliability assurance measures in the process of product manufacturing, assembly, purchase of accessories and purchased parts and early fault elimination, and implementing system engineering, can the reliability of CNC machine tools be improved.

The stone carving machine is composed of a computer, a carving machine controller and a stone carving machine host. Working principle: design and typesetting are carried out through the special engraving software configured in the computer, and the computer automatically transmits the design and typesetting information to the engraving machine controller, which then converts the information to drive the step electric machinery Or the power signal (pulse string) of the servo motor controls the engraving machine host to generate X, Y, Z axis engraving tool path. At the same time, the high-speed rotating engraving head on the engraving machine can cut the processing materials fixed on the workbench of the host machine through the cutters configured according to the processing materials, so that various plane or three-dimensional relief graphics and characters designed in the computer can be carved, realizing the automatic engraving operation of the stone engraving machine.