Machine tool numerical control changes transform

5m, 1 for 2.

5m, the linearity of slideway and twist can be adjusted 0.

008mm/1000mm, slideway itself was not repaired further grind. The two vertical machining center that my place manufactures 8 years before, 6 years in user factory course above makes the ceaseless treatment of 3 24h two classes use, pullback recently I an actual measurement in rebuilding: Linearity of a meter of slideway is ground sunken 0.

003mm. Component of manipulator knife library is fragile go up in a few spare partses centrally (wait for) like paw, bolt, although change afresh expenditure is not much also, because this is mechanical,the component has higher surplus value. Be opposite normally for an equipment, mechanical part has 60% above surplus value, electric part has 20% ～ 50% above surplus value, these are worth while transform can consider a factor. The goal that after the 2nd pace puts forward to hope to transform to transforming equipment namely, can achieve expects a cost, have what kind of machine tool precision and performance characteristics namely. A few people think, put forward transform index to should be contacted with index of certificate of proof of congener new machine tool, even exterior quality asks to wait, here has reasonable one side. But the base that must consider it is an old equipment, it is defective, the requirement raises the cost that gets too high investment inevitable meeting increases greatly. Numerical control is changed transform and of equipment in long, it is more reasonable that overhaul scheduling union rises, can achieve idealer use result. Do not consider the target after transforming to be worth from whole of quality of exterior of down to of machine, report, fluid accordingly, and regard it as should change an electrical system simply only, after transforming, inevitable meeting leaves one caboodle question. After transforming a target to be worth certainly, want to undertake throwing the estimation of financial capacity and manpower, throw the assessment of capital namely. More or less does devoted capital transform end on any account with formulate closely related. Transform charge devotedly to basically form by following project: System of ① numerical control and machine tool of ② of relevant servo; are electric reach accessory to change; ③ machine tool is mechanical yuan of component precision rehabilitate and support system of machine tool of maintenance; ④ (wait like hydraulic pressure system, cooling system) after the machine tool of repair; ⑥ of quality of exterior of machine tool of maintenance; ⑤ is transformed debug detect; . In suffer when transforming charge to restrict, chang Quxiu changes transform a target to be worth, reduce a few secondary to ask to throw charge in order to decrease. Work through afore-mentioned 3 phase, of an equipment transform plan to already was decided basically, but must undertake to this plan the risk is evaluated. Although an old machine tool has again complete technology record hidden trouble of not repellent also existence, existence a few cannot foreknow element influence, especially the equipment with technical high content. Doing when transforming program, undertake analyse of current situation have a bowel movement impossibly to equipment, take machine tool current situation impossibly to check data accurately, unexpected problem still can be encountered in transforming the job because of after this is in, be being carried out. To this kind of problem, contract with respect to the requirement engineering department the technical experience according to oneself, on the foundation of spot survey, make the risk is evaluated and formulate photograph answers plan. Another kind of practice is to entrust just mix contract square both sides realizes the risk exists objectively, in project project cost, the setting cannot foreknow expenses will assume a risk jointly. Anyhow, multinomial transform engineering experience to make clear: Face up to the risk element of the project beforehand, although be carried out in the project in have a lot of problems, but can of head off a danger. Take seriously beforehand, once appear,the problem has the way to deal with a situation, it is one of main essential factor with successful project. The 5th content is performance/price ratio is evaluated. This is actually afore-mentioned the 2nd evaluate integratedly with the 3rd. Have the basis of quantitative analysis economically to be in, often choose the commodity price with the similar now performance on the market to undertake comparative as the standard. Have a horizontal machining center that manufactures 15 years before for example, electronic-controlled serious already damage cannot maintain the share, mechanical precision already was lost 20% the left and right sides, its surplus value is in estimation 300 thousand yuan or so, when wanting to transform electronic-controlled the part needs to throw 2.

50 thousand yuan, mechanical part rebuilds need to throw 100 thousand yuan, overall throw fee of service of 100 thousand yuan of technologies even, add up to throw 750 thousand yuan. Buy a similar machine tool to need 1.8 million yuan again now. The 70% ～ that performance characteristics of the machine tool after transforming and efficiency estimation can obtain new facility 80% , service life is in 6 ～ 8 years of above () of above of an overhaul cycle, namely this performance/price ratio that transforms program is desirable. Want to notice in evaluate: The facilities with too low surplus value is undeserved the on the low side of; surplus value that transforms vigorously, devoted value is too high transforming program also cannot be taken. In because this old equipment numerical control is changed,be being transformed, principal target is the machine tool of old numerical control with higher surplus value. These equipment machinery structures and function and new electronic-controlled easy implementation matchs the system, integrated effect is better. It is general accuracy machine tool next in heavy, large facility, these equipment are worth formerly taller, often still be sectional key equipment up to now, be worth to be transformed for it vigorously. Be worth not high equipment to a few cost price, feel to discard as useless immediately regrettablly! The recycle after still wanting to transform the equipment of one phase, weigh with respect to Ying Shen when transforming applied index certainly. Namely from practical set out put forward investment not to want too old application index. Electronic-controlled the part uses cheap simple and easy system as far as possible, transform workload to compress inside certain limits, with reduce investment to strive for economic economic effect. Nextpage 　 　 3, the numerical control that numerical control turns transformed basic measure equipment changes transform the job to commonly 3 kinds run way: Namely, equipment has him manufacturer to undertake, this asks these manufacturer oneself have stronger ability to change force; the 2nd kind of means is the technical weak point that equipment has manufacturer him ground, invite the brotherly unit with authentic technology to attend, collaboration assumes project; the 3rd kind of means is to entrust an unit completely to contract project. The choice contracts the unit must notice to inspect its technology capability and commercial reputation. Numerical control is changed transforming the job is technical content the work with more extensive field of big, technology, choice object must have solid technology capability, organic report integrated ability, jiayi is bilateral and due cooperative sincerity, it is dependable partner; otherwise, light relies on simple contract to concern to restrain the other side very hard each other, make project progress slow or cannot receive remaining part. Transform measure to be as follows basically: (1) old equipment evaluates;(2) basically to transform plan;(3) to fulfil certainly transform devoted capital;(4) to search entrust an unit, sign about transform contract agreement;(5) to arrange digestive machine tool to have old facility of mapping of spot of;(6) of data, data;(7) of electric, mechanical component is right electric, machinery transforms CNC, PLC, machine tool content undertakes designing, order goods, production;(8) is opposite system of Electromechanical of machine tool the others, hydraulic pressure system, complementary undertake, working dependability runs;(13) machine tool to hand in an examination to check and accept cutting of trial production of;(14) machine tool to move. Of course, the content that specific to some project should do may have increase and decrease, but basic content included roughly. 4, the difficulty that transforms the job to often be encountered evaluated difficulty to use old old equipment to want to make to exact evaluating have certain difficulty, especially the technical archives that a lot of equipment often lack necessary, system. Some is secondhand facility source is missing already, some equipment already damaged cannot undertake checking again waiting, should cut understanding truly so degree of each component tatty, the surplus value that assesses each component mensurably is very difficult. Exorbitant or too low evaluate, the performance/price ratio after be being transformed to transforming plan to reach certainly brings a lot of influences. When doing this work accordingly, invite the expert that has rich experience, do necessary mapping, test experiment, making the work such as necessary prices survey is necessary, especially quantitative analysis. When the choice of optimal program is doing every machine tool to transform program, often have a variety of plan, transform investment in general capital and obtain the effect to should become direct ratio. Blind pursuit high index and high investment are needless, say to spend again big price to also cannot calculate a new facility objectively. Because of this proper investment, striving for economic use target is the basic principle that chooses optimal plan. When making plan, answer to have actual level according to the machine tool, make a few kinds of program that can offer an alternative, by entrust just mix bear make just talk things over, satisfying use unit of real service life before below the problem, take least investment, such program with transform plan to be able to consider as better. Transform system and the option that replace component to transform a machine tool to want to change necessarily a lot of component and electronic-controlled system. Regard a machine tool as the user, yuan of parts of an apparatus that always hopes to still can be used withhold as far as possible, if withhold system of the servo electric machinery of primary facility, hydraulic pressure, auxiliary component to wait, in an equipment after such transforming, inevitable new old component mixes use, is the effect met how? We ever had transformed a 5 axes machining center of 5 linkage horizontal, numerical control system used 16M of better Japanese FANUC company, circumstance of work of system of the numerical control when always debugging a car is very good, but because hydraulic pressure vitta is serious ageing, leakage of continuous occurrence crack is oily, in a many the month debugs level inside, canal of smooth oil change took up a few weekday. When choosing component certainly so, should consider equivalent, wait for use time match. Namely the machine tool of complete function just deserves to use system of complete function numerical control, when new assembly has old above to use period of efficacy, the old component service life of reservation also asks to match with it, perhaps have relevant measure. Of vitta of rehabilitate of the precision rehabilitate that machine is old consider when the machine tool is transformed for example, precision of ball guide screw and readjustments preload, hydraulic pressure and sealing ring change, when form of new number of numerical control system is controlled and electric machinery of servo of pilot of quantity of the imitate on old machine tool does not match, be about to consider to change servo electric machinery, perhaps use older imitate to measure system of control numerical control. To the foreign old machine tool of all sorts of a few antecedents, still must consider metric with imperial standardization problem, imperial standard component, whorl, pipe fittings, bearing can give change bring a few new issues, prepare imperial and general tool even even. Checking and accept technical condition to check and accept a condition surely really is every transform a project to must consider, this often is being carried out when transforming a project, entrust just mix carry on to just appear the most easily divergent place. This report is being entrusted just hope higher to setting stock to be worth, carry on to just appear to primary facility underestimate flaw, and check and accept a condition to did not unite a standard to be able to be depended on again wait for a circumstance to fall, to the situation of the appears the most easily to say each each manage when project later period is checked and accept. Check and accept a condition in formulate so when, of the occupation standard of OK and referenced congener new machine tool and this machine tool leave factory acceptable single original record, analyse this machine tool at present precision carries a condition, make a machine tool when necessary actual precision checks, according to these primitive data both sides the needle puts forward to check and accept technical condition reasonably to transforming a part. Exemple if a machine tool is transformed,changed only numerical control system, that is right in checking and accept a condition function and working dependability are due and detailed regulation, but beg defective consideration to abstract of precision of machine tool geometry. Anyhow old equipment transforms the job is omnibus hi-tech job, the element that cannot foreknow is more, so total when check and accept conference appears a few repeatedly, at this moment both sides can come with the partner's spirit friendly talk things over, majority problem is can appropriate solves. The control that project construction plans the project transforms cycle according to equipment complex degree is in about 1 ～ 6 months above, be in those who assure quality before the cycle below the problem is shorter better. Be opposite more complex in cycle of large facility construction is as follows. Data of old equipment technology is digested, primitive function test requires electric mapping, mechanical mapping, machine tool machinery of 40 days of; 　 , electric, CNC designs 20 ～ to order goods and be made need 90 ～ 150 days (basically use at importing yuan of component to order goods cycle and large and complex part make cycle) . CNC Milling