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With the development of economy and the continuous progress of science and technology, the pace of upgrading machinery products is accelerating. Most mechanical products are developing in the direction of multi varieties and small batch. This trend calls for more and more deep hole drills to improve the flexibility and automation of process equipment and meet the requirements of technological progress. Replacing deep hole drill with ordinary drill is the trend of the times. It is the need of current enterprise development to rapidly adapt to the changing market demand and enhance the competitiveness of enterprises.
 
The deep hole drill with high precision, high rate, high automation and high flexibility has injected strong vitality into the production of enterprises, and has also brought remarkable results to increase production and income. However, some enterprises have many problems in the management, use and maintenance of deep hole drilling, resulting in the low utilization rate of deep hole drilling, the high cost of using, maintaining and repairing, and the low economic benefits, even causing the enterprises to carry heavy debts and plunge into crisis. Therefore, it is an important issue to optimize the resource allocation of deep hole drilling and strengthen the management of deep hole drilling. The author believes that the following aspects should be paid attention to when the deep hole drilling is to "manage well, use well and maintain well", give full play to the advantages of deep hole drilling and improve the utilization rate of deep hole drilling.
 
First, strengthening pre management is the basis for improving the utilization rate of deep hole drilling.
 
Prophase management is the "congenital" condition to improve the utilization rate of deep hole drilling. Early management is improper, such as blindness in selection and purchase, confusion in equipment selection, incomplete data, and no good technical support; the more functions pursued, the better, many functions in use can hardly be used or hardly used, resulting in redundant functions. With high performance, high accuracy and high automation, the price is greatly increased. In the actual production, there is a medium or low grade CNC machine which is sufficient. The goods are not right, and the use cost is too high or the processing scope is too small after purchase, resulting in the low frequency of machine tool usage. All these resources not only cause waste of resources, but also increase the economic burden of enterprises and the cost of machine tools, which brings many difficulties to the maintenance of machine tools. Therefore, only by strengthening pre management and strictly checking can we create a good "congenital" condition for the use, maintenance and maintenance of CNC machine tools. Therefore, when choosing deep hole drilling, we should consider the following points.
 
1. first determine the typical machining parts or group of machining objects of CNC machine tools. Although CNC machine tools are flexible and adaptable, each machine tool can only be applied to a certain range. Only under certain conditions can machining fixed parts achieve good results. Therefore, the selection of CNC machine tools must first determine the typical parts to be processed.
 
2.. The specifications and accuracy requirements of CNC machine tools should be determined according to typical workpieces. Excessive pursuit of CNC machine tool coordinate axis, large working table, large motor power and high machining accuracy, on the one hand, will increase the cost correspondingly, on the other hand, it will make the resources waste.
 
The selection of CNC system should be based on the type, design index and performance of CNC machine tools. When ordering, the functions of the system should be ordered at one time, and the 3. parts should not be omitted. At the same time, from the point of view of management, programming, operation and maintenance, if it is not a special case, it is generally possible to choose the same series of CNC systems from the same manufacturer.
 
The selection of the 4. automatic tool changer (ATC) should be based on the premise of satisfying the requirement of use. The device with simple structure and high reliability should be selected as far as possible, so that both the utilization rate and the price of the whole machine can be reduced. The tool holder should be carefully chosen, which directly affects the starting rate of machine tools and the size of equipment investment. Machine tool manufacturers sometimes provide a set of common tool holders for users according to their own experience. This tool holder does not always apply to every user. Therefore, orders and quality must be determined according to typical workpieces, so as to achieve economy.
 
5. choose the driving motor carefully, calculate and analyze, and select the appropriate specifications. Be careful not to "big horse cart", which will not only increase the cost of machine tools, but also increase its volume and structure layout.
 
6. when choosing CNC machine tools, apart from selecting basic functions and basic parts, they should also select some selection parts, selection functions and accessories. The basic principles of choice are comprehensive allocation and long-term consideration. For some of the low prices, but for the use of a lot of convenience, should be configured as many as possible, accessories should also be equipped with complete sets, to ensure that the machine tool can be put into use immediately after the factory, and should not spend hundreds of thousands of dollars to buy a machine tool, because of the lack of a few tens of dollars or hundreds of dollars of accessories and long-term can not be used.
 
7., we should strengthen our research work, seek technical advice from the departments that know deep hole drilling or experienced units with deep hole drilling, and have a comprehensive understanding of the market situation of deep hole drilling at home and abroad, so as to strive for three goods. We should also pay attention to avoid buying products that are about to be eliminated or eliminated, which will bring heavy burden to enterprises. What is worth mentioning here is that our country has been able to produce a variety of CNC machine tools, and many of them have perfect technical performance, so we should try our best to select domestic products.
 
8., we will fully examine the situation of equipment supply units in such aspects as kit, tool system, software support, programming system, technical support, maintenance service, personnel training, debugging and installation, data matching and spare parts supply. Ignoring any of the above aspects will cause the mainframe to play a role. Many enterprises have lessons in this respect.
 
9. strengthen the installation, commissioning and acceptance of equipment. After installation, commissioning and acceptance of equipment, there must be personnel provided by the unit. Numerical control system technology is more complex. In the process of installation, commissioning and trial operation, factory technicians must take an active part in learning and study comprehensively the geometric accuracy, positioning accuracy, cutting accuracy, machine tool performance and NC performance of CNC system. Carefully check and match all kinds of information, manuals, maintenance manuals, appendix instructions, computer software and instructions. Otherwise, some additional functions will not be developed in the future, and the maintenance and repair of machine tools will be difficult. In addition, once the equipment is installed and debugged, it must be put into operation immediately after acceptance. Generally speaking, the numerical control system needs to run for 9~14 months before it can enter the effective operation area (accidental fault area). Therefore, users must make full use of the favorable conditions of one year warranty to make the initial operation area (early failure area) end in the warranty period.
 
Two. Strengthening the production technology management and use of deep hole drilling is the key to improve the utilization rate of deep hole drilling.
 
In the use of CNC machine tools, there are many problems such as low start-up rate and poor economic efficiency. This is closely related to the management and use of production technology. To strengthen the management and use of production technology, I think we should pay attention to the following points.
 
1., professional leadership, unified management, planned use and centralized maintenance are implemented. As far as possible, consider establishing a numerical control workshop or CNC workshop. Of course, when drilling for a long time, it is not necessary to concentrate on the location of the equipment, but we must pay attention to create a good working environment for CNC machine tools.
 
2., vigorously develop the technical team using deep hole drilling, and take measures to stabilize this team. The production efficiency of deep hole drilling depends on the technical level of users to a certain extent. The ideal operator should be clear headed, quick thinking and enterprising, master mechanical processing technology knowledge and practical experience and related numerical control knowledge, rich on-site fault judgement and preliminary problem solving ability. Such personnel can only grow gradually through long-term training.
 
According to the actual situation of our enterprises, we can see that those who have graduated from high school or technical school, who have been engaged in mechanical processing for two or three years and who have dedication and spirit, can all be trained as objects. After technical training and practice, and after 2~3 years of practice and exploration, it can generally reach a higher level. At the same time, enterprises must improve their treatment, mobilize their enthusiasm and create a relaxed employment environment to stabilize this team.
 
3.. A team of deep hole drilling research teams with technical research and process programming as the main line under the unified and coordinated production plan.
 
From two aspects of management and technology, we ensure that the starting rate of CNC machine tools can be improved. Because of the technical preparation (process analysis, programming, tool adjustment, tooling preparation and trial processing), it is important and heavy, and the preparation time is much higher than that of the single workpiece, and the technical content is high, so the non specialized team is not allowed. The team should be responsible for participating in the selection, purchase and acceptance of new machine tools, accepting relevant training and learning, organizing the research and development of new machine tools, analyzing the manufacturability of parts NC machining, and deciding whether to adopt numerical control machining in the unified coordination of production departments, and carrying out daily numerical control technical guidance, process programming and so on.
 
4.. Configure the right automatic programming system. Manual programming is simple and easy to program parts that are not too complicated or have little computation. When the machined parts are complex, such as dies, cams, non-circular gears or multidimensional surfaces, the programming cycle is long (days or weeks), with poor accuracy and error prone. Therefore, to compile programs quickly and accurately becomes an important link to improve the utilization rate of machine tools. Therefore, it is necessary to configure the necessary automatic programming system.
 
5.. Establish a comprehensive tool management system. The tools for deep hole drilling are responsible for assembly, pre adjustment, data maintenance, repair, updating, lending and cleaning, keeping the accuracy of NC machining, prolonging the service life of cutting tools, and reducing the use cost.
 
Three. Strengthening the maintenance and repair of deep hole drilling is the guarantee for improving the utilization rate of deep hole drilling.
 
The maintenance level and repair ability of deep hole drill directly affect the normal starting rate of deep hole drilling.
 
1. build a high level maintenance team. CNC machine tools, machine, electricity, liquid (gas), light equal to one, technology is complex, it is necessary to establish a mechanical, electrical, power, computer hardware and software professionals and maintenance fitter professional maintenance team, in order to adapt to the needs of machine tool maintenance. It is necessary to carry out technical training in many ways, especially to improve their ability to distinguish faults and eliminate common faults.
 
2.. Establish a sound routine maintenance and lubrication management system, strengthen the dynamic management of equipment failure, monitor the state of key equipment, and reduce the downtime.
 
3.. Establish a perfect maintenance file, record and store the time, location, cause, solution and process of the equipment malfunction, so that it can be used for reference in the future maintenance work.
 
4. configure necessary maintenance tools and tools, such as oscilloscope, multimeter, logic analyzer, etc.
 
5. ensure the supply of repair parts. There should be necessary inventory and purchase channels for vulnerable parts and common parts. Establish long-term contacts with the equipment providers as far as possible so as to provide backup support for ensuring the best condition of the equipment.

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Dongguan Li Kun CNC Co., Ltd.
Miss Lin: 189-3829-0275
Mr. Luo: 136-6578-2166
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