Numerical control of old machine tool, product line changes transformed content, technology and fundamental

340 thousand, namely numerical control of our country machine tool is changed do not lead 3% . Come nearly 10 years, machine tool of our country numerical control produces per year a quantity to be about 0.

6 ～ 0.

80 thousand, annual produce is 1.8 billion yuan about. Numerical control changes year of yield of the machine tool rate for 6% , annual produce numerical control is changed lead two Japan after be 12%(to be respectively 31.

6% with 75.

4%) . And machine tool of the economy in numerical control machine tool numerical control occupies 80% above, the advanced machine tool such as automatic machine bed is not much. Enlistment age of our country machine tool of 10 years of above occupy 60% above;10 year in the following machine tool, automatic / semi-automatic machine tool is less than 20% , the automation product line such as FMC/FMS more can be counted on one's fingers (the United States and Japan occupy 60% above) automatically with semi-automatic machine tool. Equipment of the production of the most production trade that sees us and enterprise, treatment counts the machine tool that is a tradition greatly absolutely, and above of half the number is enlistment age the old machine tool in 10 years of above. Even if numerical control machine tool, majority is machine tool of economy numerical control, manufacturing equipment and technology are dated and backward. The product that with this kind equipment treatment comes out exists generally quality difference, breed little, class low, cost is high, offer goods period to grow, lack competition ability on international, home market thereby, affect the product of an enterprise, market, beneficial result directly, affect a business live and develop. The numerical control that must improve a machine tool energetically so is changed rate. Forecast according to the expert, to 2000, expenditure of machine tool of our country numerical control can be amounted to 240.

200 million yuan. These demands are satisfied on one hand through purchasing new facility, on the other hand, if make full use of the existing asset putting an amount of our country, be replaced with the equipment after be being transformed newlier and decrease purchase new facility, can have the effect of get twice the result with half the effort. With 240.

200 million yuan demand estimates, although the demand of 10% passes the second birth of equipment to transform,will come true, also have 2.4 billion yuan market every year. The numerical control that imports equipment and product line is changed transform market our country since reforming and opening, a lot of enterprises introduce technology, equipment and product line to undertake technical reformation from abroad. According to not complete count, from 1979 ～ 1988 10 years, the whole nation introduces technical reformation project to have 18446, about 165.

800 million dollar. In these projects, major project produced due effect for the economic construction of our country. But as a result of,some introduces an item a variety of reasons, equipment or product line cannot run normally, break down even, make the benefit of the enterprise is affected, make badly business get into trouble. To make full use of these equipment are mixed product line, we introduced the 10 years of above, technical reformation project that concerns with mechanical industry to undertake investigating to the part. After we understand a few equipment, product line to be introduced from abroad, some assimilation absorb bad, spare parts is not complete, safeguard undeserved, when undesirable; some is introduced, as a result movement notes imported equipment, instrument, product line only, negligence software, craft, management, cause a project not complete, equipment latent capacity cannot develop; some to cannot be started even move, the product sale of product line of due without play action; some is very good, but because specific power consumption is tall,produce some of the; that amount to mark, product percent of pass is low and cause deficit; some to already was introduced longer, need undertakes the technology is updated. A variety of reasons make some equipment did not create wealth not only, spending money instead. The device that these cannot use, product line is a package, also be a batch of very big capital fund that put an amount, fostering cordial relations between states is fortune. Want to find out main technical difficult point only, solve " card neck " crucial technology issue, OK the smallest invest the capital fund putting an amount with dish of the biggest work, strive for the biggest economic benefits and social benefit. This also is a huge transforms the market. What 2 numerical control change transformed content, technology and principle abroad to transform line of business is arisen wait for developed country machine tool industry to be in depression in the United States, Japan and Germany today, their machine tool is transformed is to serve as new economy to increase a trade however, the business is abundant, at golden age. As a result of the ceaseless progress of machine tool and technology, the machine tool is transformed is " lasting " task. The machine tool of our country transforms line of business, also enter the new industry that gives priority to with numerical control technology from old industry. Be in the United States, Japan, Germany, have broad market with machine tool of numerical control technical reformation and product line, already formed the new industry that machine tool and product line numerical control transform. Be in the United States, the machine tool transforms course of study to call machine tool second birth (Remanufacturing) course of study. The well-known company that pursues second birth trade has: Company of Bertsche engineering company, Ayton machine tool, Devlieg-Bullavd(gets treasure) company of equipment of service group, US. The United States gets treasure company to already was in Chinese open company. Be in Japan, the machine tool transforms course of study to call a machine tool to change one's costume or dress (Retrofitting) course of study. Be engaged in changing one's costume or dress the well-known company of course of study has: Group of big engineering rivering bend, hillock is company of aircraft of work of 3 mechanical companies, 1000 acting field, wild Qi engineering company, bank cropland engineering company, hill this engineering company. The numerical control that numerical control turns transformed content machine tool and product line changes transform main content to have the following: It is to restore primary function firstly, the breakdown part that exists to machine tool, product line undertakes diagnostic and restoring; is NC secondly change, on general accuracy machine tool addend shows plant, or addend controls a system, transforming; of NC machine tool, CNC machine tool is face-lifting thirdly, to raise precision, efficiency and automation rate, undertake face-lifting to mechanical, electric part, assemble treatment afresh to mechanical part, restore former precision; the CNC system that malcontent to its full production asks undertakes updating; with newest CNC its 4 it is the technology is updated or the technology innovates, to increase function or class, or to use new technology, new technology, in original basis the technology with aspirant more extensive travel is updated or the technology innovates, relatively what increase level and class substantially is newer transform. Assessment numerical control changes transformed standard to be as follows: The transformed 30% less than that are thrown in price of new machine tool, can obtain 70% ～ 80% use efficiency, consider as successful; , li> transforms the pay back period of devoted cost, under the pay back period that purchases new machine tool to put in cost (it is 5 ～ 6 years commonly) the half is the following (it is 2 ～ 3 years commonly) , transforming is valuable. Also have exception. Be like the crucial equipment of some project, if be purchased from the foreign country, its offer the case that money time and price cannot accept, its transform evaluation standard to should consider separately. Numerical control changes transformed advantages and disadvantages to reduce investment, date of delivery short purchase photograph of new machine tool to compare together, can save 60% ～ commonly the charge of 80% , transform expense low. Especially large, special machine tool especially apparent. General and large machine tool is transformed, only beautiful new machine tool purchases the 1/3 of charge, date of delivery is short. But a little special situation, the making that if high speed main shaft, cutting tool makes buy of transhipment of through cargo, tray automatically,exchanges unit automatically and installation take a lot of work too, costly, often transform cost to raise 2 ～ 3 times, with purchase photograph of new machine tool to compare, can save investment only 50% the left and right sides. Mechanical function is stable and reliable, the structure accepts the base such as the lathe bed that is restricted to use, pillar it is heavy and solid cast component part, is not the sort of soldering component part, the machine tool function after transforming tall, quality is good, can continue to use as new facility old. But get the limitation of rigid before structure, unfavorable do transform revolutionarily. When maintenance of familiar understanding equipment, facilitating operation buys new facility, do not understand new facility to whether can satisfy its to machine a requirement. Transform criterion otherwise, the process capability; that accurately computation gives a machine tool is additional, because be used for years, handlers understands the character of the machine tool already, be used in the operation and maintain a respect to groom time is short, get effective fast. Transformed machine tool has been installed, can realize full load movement. Can make full use of existing condition can make full use of existing foundation, when need not resembling purchasing new facility, need to build foundation afresh in that way. At the same time program of labour clamping apparatus, software, example reachs peripheral equipment also can recycle. It is with machining center exemple, the charge of tooling should occupy the 10% above of price of whole machine tool commonly. Can use the development rate that newest control technology can innovate according to the technology, improve the automation standard that produces equipment and efficiency in time, increase equipment quality and class, will old machine tool changes the machine tool of current level. 3 numerical control are changed transform example to hang the research center of project of country of high-grade numerical control that leans in place of computation of Shenyang of Chinese Academy of Sciences, it is the national project center that numerical control system studies to development and project are changed. A; solved blue sky of system of the first high-grade numerical control of our country of success of this center development system of our country high-grade numerical control from do not have some problem; " 85 " during, the country that this center is assumed and completed system of 5 high-grade numerical control tackles key problem two project, Chinese Academy of Scienceses are great project, around formed blue sky (product of LT) numerical control 4 series 13 kinds of model. High-grade numerical control obtained this center blue sky to make much home the first: It is; of system of the first high-grade numerical control obtained; of copyright of software of the first high-grade numerical control of our country to equip treatment of 5 axes linkage gives; of machining center of the first 5 axes linkage of our country; of the first high-grade impeller of our country equiped milling machine of crankshaft of the first double process of our country. Come a few years, numerical control center is given priority to with system of numerical control of blue sky series, use a variety of numerical control technologies, transformed machine tool and product line successfully the numerical control that nearly 20; are machine tool and product line with technology of advanced numerical control is changed transform did much work, solved numerical control to turn issue of transformed a few general character, gained remarkable economic benefits and social benefit. Use system of blue sky numerical control for example, began 1992, the;1993 of machine tool of special numerical control that transformed impeller of 2 manufacturing supercharger in machinery plant of car of engine of railway ministry Tianjin year, transformed the machine tool of 2 numerical control in stone vitta product line respectively in saddle hill seamless tubing mill 1995;1994 year begin to be dawn of Shenyang of aviation head office in succession engine production company, plant of container of high pressure of the hill that it is saddle transforms two to come back pressure implement product line of binding off machine. The equipment that above transforms, some already moved 7 years, still run normally up to now, get user reputably. Additional, numerical control of use blue sky and other system, transformed machine tool of 8 numerical control successfully for product line of car of one steam group. Transform example typically to be as follows among them. The numerical control of product line of vitta of stone of saddle hill seamless tubing mill transforms this workshop to machine oil artesian well to join with oil steel tube with numerical control lathe whorl, its appearance is special, treatment precision and repeat precision the demand is high. The system of former outfit numerical control of this machine tool is the 550NC system of American GE company. As a result of year long disrepair, often give trouble, without data and spare parts, force of the technology in the factory cannot solve a problem, the machine tool is in stop production condition. We use a country " 85 " tackle key problem newest achievement and linkage of advanced double process four-axle are common Z axis technology, replaced more backward GE 550NC system, resumed production, raised automation rate. This workshop transformed machine tool of 2 cars silk early or late, transform equipment cost to invest 440 thousand yuan, year value of new increase production is 21.6 million yuan, increase profit tax newly 1.62 million yuan. The numerical control of production company of Shenyang dawn engine transforms production company of engine of dawn of Shenyang of head office of Chinese aviation industry to use blue sky system of high-grade numerical control, transformed 4 number of feed inlet to control machine tool and machining center for center of this company numerical control early or late. These numerical control machine tools introduce time earlier, original numerical control system year long disrepair, the function is insufficient, breakdown frequency goes out, cannot get used to manufacturing demand. Because purchase cost of new machine tool too tall, and lead plane of these numerical control machine tool still have use value, so we transformed numerical control system and the control unit related its with key of latest technology achievement. The result resumed production, improved product quality, improved production value and beneficial result. The lathe of TFM160N large vertical that transformed 70 time to be imported by France (value 3 million RMB) numerical control system, provide electric line afresh. After transforming, this machine tool machines the United States component of some aircraft engine, production value amounts to 4 million dollar, and transform investment only 160 thousand yuan. The CNC Milling200C(value that still transformed British entrance many yuan 100) the value of V800(of numerical control lathe that imports with Germany many yuan of 100) . The BMC that transformed foreign entrance newlier, 10B(5) 5 coordinate machining center (for secondhand goods, its value many yuan 400) control a system. Use advanced blue sky system of high-grade numerical control is transformed newlier, the machine tool after transforming has property of advanced technique of 90 time international: 5 axes linkage, fast feed, ATC controls big route of control of 6 axes servo, puissant cutting, complete closed circuit storage capacity of; chain knife measures 60 knives, random of 3 double tray exchanges the random; that change a knife, workbench face 1000mm × 1000mm, workbench turns over runner shaft (A axis) synchro control; uses structure of symmetrical positive drive, double servo (A1 and A2 axis) by numerical control synchro control, workbench retroflexions compensation of temperature of force big; , the difference in temperature between main shaft and pillar is compensated, ensure; of need of high accuracy treatment transforms cost this to be 530 thousand yuan. The numerical control of automatic product line transforms plant of container of saddle hill high pressure plant of container of saddle hill high pressure has product line of gas cylinder of two high pressure, among them one is the two hand product line that spent 300 much dollars to be imported by the United States 1986, another is homebred product line. Import product line to wait for a reason as a result of congenital inadequacy, be in for years break down condition. My center assumes machine of binding off of key of this product line transform the task, with blue sky system of 8530 high-grade numerical control, servo drive system is mixed closed-loop control technical reformation former more backward, breakdown 100 but system of process designing controller, pace takes drive system and open loop control. 3 short month, transformed binding off machine not only, resumed production, raised automation level, and the DOT certificate of quality that manufacturing product passed American authority, gained the reputation that avoids check, beautiful business should have exclusive selling rights this product. Next, begin again with PLC technical reformation furnace controls Salem heat treatment, make the two big difficult problem of this product line get be settlemented satisfactorily. The product line after transforming is produced per year can amount to 100 thousand, every bottle 75 dollars, annual produce can amount to 7.5 million dollar, quite 60 million yuan of RMBs. And these two are transformed invest 400 thousand RMB only, but dish lived 10 thousand yuan thousands of asset. "85 " the numerical control achievement that tackle key problem not only the repair, product line that transforms a stop production, and return the company that bring back to life is close to going bankrupt. This project is saved mayor of city of hill of governor, saddle to wait for those who lead a comrade to speak very highly of by Liaoning, leader of committee of science and technology of saddle hill city is calculated to Shenyang on a special trip, RMB of personnel of have rendered great service of special commend task 100 thousand yuan. Use blue sky again at present system of 8530 high-grade numerical control transforms product line of gas cylinder of another homebred high pressure. 4 ability change the problem that face and proposal technical reformation to be in some units are unvalued, think patch up does not become atmosphere, had capital to go up new project, buy new facility to open new line. Additional, insufficient to confidence of technology of old equipment, homebred equipment, homebred system, home, look down on. Some units look down on domestic technology. If ask a foreigner to maintain facility, from abroad the plane rises, horary ten dollars expenditure, add the airline ticket that go to, room, a few days of time are about to spend on 10 thousand yuan. So big expense it is normal that its think, can accept. But similar service, the Chinese gives same value with respect to otherwise. Beyond even if of compatriots price a few come to an agreement, but money wanting after working also is very difficult, restricted ability to change so and the development of technology of domestic equipment, home. Technical reformation market has not united a standard, have the unit that transforms the task, do not know to look for some person; people not to know to seek work there there. Ability changes a service to do not have specific service standard, the team that participates in ability to change is uneven. A few some people pull a team to work temporarily, after be over alive with respect to disband, the technology that the user cannot get sequel is propped up and ensure. The proposal is planned by concerned branch, market of normative technical reformation and service standard, hold water a few specialization transform a team. Suggest each trade department is built, build invite public bidding of project of complete technical reformation to bid system, draft corresponding policy code, the capital channel that open up ability changes, make ability changes the development course that brings into normal health. Use computer network technology, build the breakdown equipment warehouse that library of natural resources of technology of domestic numerical control and need transform. Build efficient and fair and open, just, reasonable, quick technical reformation market. 5 last words occupy not complete count, our country already began to transform old machine tool with electronic technology since 70 time. The basis is right the whole nation 320 large and medium-sized enterprise statistic, the old machine tool that will nearly 10 years use electronic technical reformation severally has 10 thousand about, among them lathe 4700 much stage, milling machine are close 500 stage, boring machine 2000 more than stage, grinder machine tool of type of 1700 stage, other many 800. This explains our country already had the team that a machine tool transforms, accumulated certain practice experience, this pair drives what be a center with numerical control technology with development to transform line of business is very advantageous undoubtedly. Liaoning visits the old industry base that is our country, the countryside of the machine tool of Shenyang city so-called China, the equipment that need transforms newlier is very much. Concern sectional program according to the province, "95 " during Liaoning province will transform numerical control machine tool about 5000, build of all kinds and automatic product line newlier 200, updating transformed market is very broad. CNC Milling