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The development direction of CNC machine tools

Machine tool manufacturing can be said to largely determine the development progress and prospects of China's precision machining industry, so the development of CNC machine tool manufacturing is almost the entire processing industry vane, in recent years, many domestic manufacturers have made great achievements, domestic machine tools have entered the global leading level in some aspects. Today's people CNC machine tool manufacturing to develop in which direction? First, maximize reliability   At present, the reliability of many domestic CNC machine tools with some of the top foreign manufacturers of machine tools still have a certain gap, such as foreign CNC five-axis lathe can keep 1500 hours of continuous operation without failure, while the domestic products can only do 1000 hours of continuous trouble-free. Therefore, we must make great efforts in reliability in order to catch up with imported machine tools.   Second, miniaturization of control system   Miniaturization is to be able to combine the mechanical and electrical devices better, taking up less space, more convenient installation on the machine tool, but also more conducive to the operation of CNC machine tools. Third, intelligent   CNC machine tools can automatically adjust the system parameters according to changes in product working conditions to ensure that the processing state remains optimal and improve the productivity of the product. Equipment can have self-diagnosis and repair function, when the failure to take downtime measures.   Fourth, high speed and high precision   Accuracy determines the quality of the workpiece, and speed which reflects the processing efficiency of the product, improve the processing speed and accuracy of CNC lathe is an important development direction.

2023

01/03

How to automate precision parts machining

The degree of automation determines the development of the processing industry, now most of the metal parts processing has been able to achieve automated production or semi-automated production, automated production of parts whose quality is more stable and reliable, the higher quality requirements of precision parts, the realization of its automated production is more necessary, then how to achieve automation of precision parts processing? The following precision parts processing benchmark enterprise Ruisheng Technology to answer for you:. Precision parts processing is the use of CNC lathes for processing, also known as CNC machining, CNC machining and ordinary machine tool processing is the biggest difference is that all the actions carried out by CNC machining is controlled by the pre-designed program.   In the entire domestic precision parts processing market demand pull, the domestic machine tool manufacturing industry demand will certainly continue to grow at a high rate, its growth rate has reached 37.4%, becoming the fastest growing of all machine tools. The country also invested a lot of money in this field to support the growth of the industry, not only the development of CNC machine tools quickly, domestic manufacturers of CNC systems have also been a good opportunity to make great progress. At present, there are hundreds of precision parts processing equipment manufacturers in the domestic market, respectively, from two different systems, one is a lot of the original state-owned enterprises through the restructuring of many of the original business separation to set up independent machinery and equipment production company; the second is that many professional and technical personnel on their own components of some private enterprises, together with the formation of the current localized machine tool manufacturing industry.

2023

01/03

How to ensure the efficiency of CNC machining

CNC machining itself is to realize automation, liberate manpower, improve work efficiency, as well as improve the quality and accuracy of the workpiece, etc. So how to ensure the efficiency of CNC machining? I will answer the following questions for you. In the premise of ensuring the smooth operation of the machine tool, can make the acceleration and deceleration process time is the shortest method is the best solution to improve the speed of CNC machining, but also the study of acceleration and deceleration is the most critical issue.   Generally speaking, there are two different acceleration and deceleration control schemes: before interpolation and after interpolation pre-processing acceleration and deceleration control we generally call the front acceleration and deceleration control, after the interpolator and before the servo controller to control the feed rate of the motion axis is generally known as after acceleration and deceleration. The algorithm of post-acceleration and deceleration control is relatively simple compared with that of pre-acceleration and deceleration, and it does not need to calculate the deceleration point, but the servo gain of different axes is not the same, which is easy to cause the impact of accuracy. Thus, the current domestic CNC machining is generally used in the front acceleration and deceleration control technology, acceleration and deceleration control methods can be summarized as flexible acceleration and deceleration method and traditional acceleration and deceleration method, the traditional acceleration and deceleration method has trapezoidal acceleration and deceleration method and exponential acceleration and deceleration method and other methods; flexible acceleration and deceleration method has trigonometric function acceleration and deceleration method, S-curve acceleration and deceleration method and polynomial acceleration and deceleration method. The traditional trapezoidal and exponential acceleration and deceleration methods affect the smoothness of motion due to the sudden change of acceleration, while the flexible acceleration and deceleration methods are of great interest in the high-speed hardware processing due to the continuous acceleration.

2023

01/03

How to maintain CNC lathe

CNC lathe (CNC) is a kind of high-precision, high-efficiency, program-controlled automatic machine tool. This control system can logically process the formulated control program, compile it by computer, and the machine tool executes the corresponding action according to the program instruction, so as to realize cutting tools and processing rough materials into semi-finished parts and finished parts.   CNC lathe has a wide range of applications, from the aerospace industry, shipbuilding industry, automotive manufacturing, medical industry, to the production of small to common products. Because the high precision of CNC machine tools can make up for the shortage of manual, it can precision cut and process parts with high requirements for roundness, cylindricity, bus straightness and other shape accuracy, with circular interpolation, linear interpolation various compensation functions, so how should the CNC lathe be maintained? The following is the maintenance method of CNC lathe developed by me. (1) Strictly abide by the operating procedures and daily maintenance system   CNC equipment operators should strictly comply with the operating procedures and daily maintenance system, according to the provisions of the photoelectric reading machine for maintenance. The operator's technical business quality of the strengths and weaknesses is an important factor affecting the frequency of failure. When the machine tool failure occurs, the operator should pay attention to retain the scene, and to the maintenance personnel to explain the situation before and after the failure, in order to facilitate the analysis, diagnosis of the cause of the failure, timely elimination.   (2) to prevent dust and dirt into the internal CNC device   Dust and dirt into the interior of the CNC device is easy to cause insulation between components, resulting in a drop in resistance, and even lead to components and circuit board damage. Because the processing workshop dust is very large, so should be at least once every quarter or every six months to check whether the air duct filter is blocked, if too much dust on the filter, not timely cleaned, it will cause the CNC cabinet temperature is too high; regular cleaning or replacement of the hydraulic, lubrication, pneumatic system filter; regular oil quality laboratory inspection of the hydraulic system; regular water distribution of the pneumatic system Filter drain; regular inspection and correction of the machine level and mechanical accuracy. Although the CNC machine tool is said to be controlled by the program automation equipment, but to achieve the efficiency of CNC equipment, the operator must be the correct operation and careful maintenance maintenance to ensure the normal and efficient operation of the equipment.

2022

12/31

Processing principles for machining

Mechanical processing is a very demanding and rigorous process, the quality of the operator is also quite high, because to ensure its high precision and high accuracy processing, then in the process of mechanical processing to pay attention to what principles? The following is introduced by me. The first point: to separate the coarse and fine parts, because roughing and fine machining workpiece is subjected to cutting force, clamping force and heat generation are different, compared to fine machining for roughing cutting, cutting force, heat generation is obviously greater than fine machining, and processing surface is more likely to produce hardening phenomenon, its internal stress is also greater. Therefore, in order to ensure the high precision of machining, roughing and fine machining must be separated. For some parts with extremely high precision requirements, they should be placed after roughing and before fine machining, in addition to low-temperature annealing to eliminate internal stresses to ensure its high precision.   Second point: the choice of equipment should be reasonable and accurate, for roughing should choose the power of the machine tool, because its main purpose is to cut off most of the machining margin, the requirements for precision is not so high, but for fine machining requires the selection of high-precision machine tools for processing, a reasonable choice of machine tools can ensure the accuracy of processing, but also to extend the service life of the machine tool. The third point: reasonable arrangement of machining processing process order is also very important, such as heat treatment process should be arranged before machining; for the elimination of internal stress failure treatment, tempering process should be arranged in the rough machining before finishing; in order to improve the mechanical properties of the parts carburizing, quenching, tempering, etc. are generally arranged after machining.   In summary, machining is a very rigorous process, the operator needs to follow the processing principles accurately.

2022

12/31