Raise what press of large numerical control coming back machines precision to debug method and research

Before 1 preparation work is debugging the job to spread out, clear clean to equipment periphery above all, whether did all space block already get examination machine tool force, if have,become loose, be sure to undertake adjustment making its exert oneself. Undertake to Electromechanical fluid and accessory next comprehensive examine self check oneself, to can having detected project, for instance the level of workbench, pillar is mixed of ram slideway face perpendicular wait with the level, must be reinspected and have a record. Moreover, before equipment electrify, want close check all positions that receive report are reliable, ground connection is good, if do not have a problem square but power transmission. Additional, examine the case such as the capacity that affirms hydraulic pressure, lube and cooling water even. 1.

Of 2 main actions and function debug include mechanical, hydraulic pressure, electric and cooling and lubricant etc. During this, one by one undertakes debugging to movement and function, list only below a few, in order to explains: (1) checks the photograph of positive and negative of main shaft electromotor, if receive,turn over, need to be adjusted in time, similar work still includes the motor such as oil pump and water pump. (2) examination operates face plate each key-press is acute, data transmission interface is in good condition. (3) checks the data between numerical control system and equipment to transmit a function. The action that whole platform equipment needs to debug and function are very multifarious, among them very multinomial debug need to undertake for many times repeatedly, to debugged circumstance and result, also need to observe carefully and detect. To occurrence special problem, undertake debugging after consider and be proved, till accord with,use a requirement. 1.

The combination of 3 Electromechanical fluid debugs this job is a systematization " project " , it is whole the key that debugs the job. Main purpose moves for the whole of equipment namely, treatment is reliable and cooperate with steadily linkage, provide solid base and safeguard, successful, decide the success or failure of this equipment research and development finally. 1.

4 treatment are debugged include to try to machine and machine two phase actually, be pair of equipment treatment precision, moving stability and dependability rise and perfect. Of 2, problem offer large vertical numerical control lubricant refrigeration debugs the hydraulic pressure of puissant press coming back, coordinate moves debug and the early days such as Electromechanical fluid adjustment debugs the job, pressed treatment production to offer to come back solid base and assure. When undertaking coming back pressing machining to workpiece, f1 of thrust of spinning roller radial can amount to 1 000 K N most, fore-and-aft thrust F2 most greatly 700 K N, n of top rotate speed can achieve workbench 100 R/min, if pursue,3 are shown. Accordingly, come back the process that controls workpiece was brought to equipment process capability acid test and examine, mix to high strenth steel especially of steel of extra high strength come back press treatment, highlight particularly. In machining a process, because suffer the effect of the integrated element such as mechanical, control, craft, hydraulic pressure, equipment is machined a few problems appeared in moving, main show is as follows: (1) comes back the generation in controlling a process is oscillatory, affect workpiece exterior quality. (Even if 2) has to slideway " creeping " phenomenon. (3) comes back continuously when pressing, before workpiece is compared from the back the wall is large slant thin. (When 4) main shaft answers oil, tripping operation phenomenon happens. (5) other reason. 3, analysis is solved in the light of on the section is coming back 4 kinds of when in pressing treatment, appear serious problems, pass the analysis that has specific aim, research and argumentation respectively, find out the main reason of problem happening, put forward to solve the specific aim measure of the problem. (The happening of 1) vibration, not only the exterior quality that affects a product, long iteration is oscillatory, the join that also can affect facility is rigid, reduce the treatment stability of the machine tool and reliability, reduce treatment precision. The element that brings about oscillatory generation is more complex, coming back in controlling a process, undertake to relevant parameter numerical value through relapsing for many times real time is monitored, the numerical value such as parameter of the change of size of observation and the coordinate position that record vibration happening, pressure coming back, craft, the wall of casting die coming back after union is machined is large with diametical measurement Zhen Wen of result, surface is mixed of exterior quality actual, comb a cause that causes vibration, undertake debugging to the machine tool, what does the circumstance narrate: as follows? 3 spinning roller of? of Kuo of  of overstep one's authority come back thrust is lopsided, slant carry bigger. Suffer the effect that machines craft, transverse thrust slants hold an amount coming back the 20% that average exceeded sometimes in controlling a process, this load was changed accept equilibrium position, cause vibration then. Consult come back press craft to press parameter issueing an amount, couple comes back control treatment process, adopt real time supervisory system, to coming back pressure (control system feedbacks through collecting pressure sensor data) undertake adjustment, make 3 spinning roller come back press thrust difference to be in less than of 5 K N, when essence of life comes back smaller. ② reason 2: Core model tightens solid difference, come back tigidity of the whole when pressing is insufficient. When this circumstance causes workbench turn, diameter jumps direction changes ceaselessly with size happening, also be one of main reasons that cause vibration. Improve the fixed way of existing core model, periphery increases join to secure, the whole that can enhance core model already is rigid, can go to the lavatory to adjust core model radial quickly to beat again, can make vibration gets reducing greatly. ③ reason 3: The linear velocity when spinning roller cuts work does not match. Increase to measure fast function with what collect spinning roller in real time, assure spinning roller linear velocity V1 and workpiece linear velocity of V2 reasonable match (V1 ≈ V2) , if the graph is shown 4 times, in order to reduce spinning roller and the concussion load when work very short time is contacted, reduce or eliminate the vibration that brings about by this element. ④ reason 4: Treatment craft parameter is unreasonable. Unreasonable craft parameter, also can bring about come back the vibration when pressing, affect the treatment precision of workpiece not only, also cause to equipment damage. Because this machine tool is first the biggest vertical of domestic,press fitting coming back has, craft is brand-new, of the treatment craft parameter to machine tool of this structure type make, need those who pass for many times to fumble ability tends stage by stage reasonable. Accordingly, wait for a condition according to the material of workpiece, dimension, undertake corresponding adjustment to machining craft parameter, also be helpful for reduce and improving oscillatory condition. (The happening with creeping 2) , often affect surface roughness of the treatment precision of equipment, surface and fixed position precision, also be one of reasons of oscillatory generation, it is the problem that heavy-duty machine tool and accurate machine tool must solve. This equipment slideway is the sliding slideway with lubricant belt, classics examination, cause, lubricant system is equipment runs one of essential fundamental conditions normally, when malfunction, can bring about lubricant condition to be not stabilized, lubricate especially when inadequacy, phenomenon of slideway occurrence crawl, affect a machine tool to machine workpiece surface quality thereby. Through optimizing the pipeline of lubricant system is mixed decorate means, detect and adjust a function what increased lubricant quantity turnover, make whole slideway lubricant the closed system that forms monitoring of a real time and feedback, ensured lubricant rationality and accuracy, eliminated what cause from this " creeping " problem. (3) classics presses the analysis of treatment to coming back, main reason is core model gives out heat expand be caused by. According to metrical outcome, undertake an analysis to data, pass machine program parameter, make corresponding compensation. Moreover, can increase appropriately come back the cooling quantity when pressing, in order to reduce core standard expand quantity, reduce mural large difference to be worth. Additional, OK also according to actual condition, adjust treatment craft or produce metre, utmost land increases the precision of workpiece wall large difference. (4) passes observation, the input that main reason is oil of main shaft refrigeration measures Q1 and sendout Q2 not to match, those who create circular process is lopsided, make excess load of scavenge oil pump moves, accumulate certain level, produce tripping operation phenomenon. Through calculate and checking equipment place needs the flow of cooling oil, of oily to answering oil path decorate undertake improve and be optimizinged, the mouth receiving oil in cooling oil and the mouth that answer oil increases flow transducer, through convection of numerical control system the quantity undertakes real time is monitored, if the graph is shown 5 times, and according to actual condition, adjust the cooling amount of oily mouth of pass in and out, already accurate quantified cooling amount, avoided the happening of breakdown again. (5) the reason as to vibration of other influence equipment, do to summarize from the respect of numerical control system of the machine tool. The numerical control system of this equipment is belonged to include voltaic annulus, speed annulus, position loop the system of a control of 3 link. For example, when transforming positional annulus gain, can change systematic natural frequency accordingly, make then systematic response speed happening changes. Through optimize and debugging systematic servo parameter, make its are in groove, avoid systematic oscillation to happen, maintain systematic stability, raise control precision of the system, in the meantime, those who cooperate machinery to go up a few debug adjust, also can be reduced and improve the oscillatory condition of the machine tool. Carry out in order through what above debugs the job, be familiar with and mastered the flow that equipment of large numerical control debugs and method, develop this type to development major equipment, accumulated the data of a large number of skill and experience, meanwhile, also promoted large numerical control the treatment stability of puissant press coming back and reliability further, satisfied manufacturing requirement. 4, epilogue passes large vertical numerical control of puissant press coming back debug the job, the following is inspired: (Equipment of 1) large numerical control is being designed, make, the advanced level of respect and the abroad such as management still is existing bigger difference, we need to pass our effort, on study and the foundation that draw lessons from foreign advanced technique, be explored ceaselessly and accumulate assemble, debug, the field experience such as craft, promote conversely with this design and make a standard, narrow stage by stage and foreign difference. (The positive result that place of equipment of 2) home large numerical control obtains, it is more very through introducing, digest, after absorbing again design, reproducing, if we cannot have new comprehension and innovation in this process, very inaccessible or overtake international is advanced level. Accordingly, through undertaking debugging to equipment, the problem that appears to debugging place of fluid of the Electromechanical in the process undertakes integration analysis studies, from go up at all the promotion that promotes integrated to large equipment development professional standard. (The innovation research and development that 3) large numerical control equips, cannot accomplish in one move, understand and grasp the strong point of oneself, face up to the current situation of foreign advanced technique, find out breach, designing, make and debug in waiting for the job firm in beg litre. (The article is aimed at 4) merely the problem that puissant press coming back appears in debugging a process has large vertical numerical control analysis, research and solve, completely OK fan out from point to area, draw lessons from what equip at other and large numerical control with application to debug the job, raise large equipment debug a level. Large numerical control equips debug the job, it is the main job of an omnibus, systematization and practicality, although the means that article place offers just is aimed at large vertical numerical control puissant press coming back, but debug the job to what the large numerical control of this type and other type equips, it is certain to have draw lessons from and direct action, also hope to carry the article, remove the effectiveness of cast a brick to attract jade-offer a few commonplace remarks by way of introduction so that others may come up with valuable opinions, to later place of domestic each industry develops new-style, fill home blank is large numerical control equips, can debugging, assemble, improve perfect wait for of all kinds job to go up, make thorough and careful research, summary gives the means method with better more and practice experience, enhance the competition ability of the innovation force of our country major equipment and international market, the development work that for the country large numerical control equips adds a brick to add tile. 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