Change continuously the rolling control of cut face plate

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Summary: The article basically is about becoming sectional continuously roller make friends board (TRB) the academic base that control model builds, become sectional continuously roller make friends board rolling control is a kind of new control method, unlike before any make friends board rolling process. Become sectional continuously roller make friends board accusing those who make a model to establish a procedure is to become sectional continuously roller make friends board the crucial technology that has production, the success of this model is built can make become sectional continuously roller make friends board batch production becomes a possibility, for automobile body light quantify widened train of thought, its reduce specific power consumption to have to the car as a result urge action actively. TRB is to be in the car is small quantify what put forward below the premise that becomes people to pay close attention to a focus increasingly, of TRB board put forward to be a car light quantify open up new approach. In the environment pollution and energy shortage become the problem with current more and more serious society, to answer increasingly strict environmental protection to challenge, world car line of business is acting actively, develop an environment energetically friendly model car, for example European EUCAR, PNGV project of the United States is specific paradigmatic. The environment is friendly model the important sign of the car is oily bad news low, discharge little, and reduce the oily bad news, weight that reduces discharged important step to reduce bodywork namely. Does the research of concerned orgnaization make clear: ? Di  touchs persimmon to take an examination of Shan?0% , oily bad news reduces 4% ～ 5%[1] . Implementation automobile body is at present light quantified efficient way has the following kinds: (The;(2) of light simple stuff with small, high intensity uses 1) use density with density, measure with stretch model and;(3) uses the thinner high strenth steel with good technical properties those who be based on new material processing technique is light quantify a structure to use material, if spell solder board,wait [2] . Under photograph comparing, the integral performance of steel makes its remain car automobile body to make the optimal choice that uses material, this basically has excellent sexual value to compare not only because of rolled steel, still have long-term since the metallurgy technology that accumulates maturity and form cutting experience. Be based on light quantify a structure to use material, the new-style sheet that offerred a kind to reduce automobile body quality significantly -- become sectional continuously board. Use those who make at automobile body light heavenly body to change become sectional laminose cent is two kinds, one kind is to spell solder board (Tailor Welded Blanks, TWB) , be will 2 or 2 above are different the board stuff with ply or different simple capable person solders together, have strike out look next, in order to satisfy different function requirement, reduce automobile body quality. But, carrying capacity difference and welding line reach capable person of the mutation that TWB is in ply of existence board makings in joining together, mother the sclerosis that its heat up influence area, cause following problem in the meeting in figuration process consequently: (1) board expects the mutation of ply makes volume of the power that approach a limit abhorrent, cause thin makings easily to flow into meet an emergency of process middling pressure too big and welding line of the;(2) that knit music carrying capacity of two side data is abhorrent, make material is flowed into and be out of shape inhomogenous, cause welding line shift, aggravate meet an emergency is centered, reduce whole board welding line of figuration function;(3) and the sclerotic action that its heat up influence area bring about whole board figuration function is reduced, figuration difficulty. Another kind is to pass flexible what rolling craft produces is successive become sectional board (Tailor Rolling Blanks, TRB) , be a kind of new rolling technology production board. The car component that becomes sectional and laminose to be made via treatment hind will have better carrying capacity, and apparent ground reduced quality. TRB rolling craft is solved or alleviated the problem that TWB exists, the application of TRB gives a car light quantify start a plant a good way. 1 change continuously of cut face plate plunge into making TRB is plank of a kind of new technology, it is in rolling process, through the computer real time control and the roller that adjust roller seam span, press in order to get edge rolling on direction beforehand the board makings ply of custom-built and successive change, refer to a graph 1. Graph 1TRB figuration is the organic union of traditional and transverse rolling and rolling of fore-and-aft periodic successive change. Its biggest characteristic is to be in rolling process, the roller of roller is seamed must successive, periodic by beforehand the appearance of set changes, and the change that roller seams must be out of shape with transverse rolling harmonious. Accordingly, must high-powered computer is opposite have the aid of of roller transverse and fore-and-aft undertake real time is controlled, with be being answered quickly, the successive change that harmonious roller seams and transverse send into change, come true thereby by wait for ply board to arrive the rolling of TRB board. The characteristic of TRB is rolling can make the ply of rolled piece asks to change by the curve that designs beforehand in the process. Because the production of TRB is a successive process, be accused to make the computer can be controlled directly object, assure the fixed position precision of rolling, the roller that must use high accuracy seams displacement sensor online and direct the change that measures roller to seam, control servo crock movement to adjust quickly through the computer and servo a powerful person the periodic successive change that roller seams. Accordingly, the response that roller seams displacement sensor speed and sensitivity, and the crucial technology that servo answered speed, discharge, journey and precision to become process of executive TRB rolling. 2 change continuously of cut face plate plunging into the characteristic that makes control TRB is rolling can make the ply of rolled piece asks to change by the curve that designs beforehand in the process. Because the production of TRB is a successive process, be accused to make the computer can be controlled directly object, assure the fixed position precision of rolling, the roller that must use high accuracy seams displacement sensor online and direct the change that measures roller to seam, control servo crock movement to adjust quickly through the computer and servo a powerful person the periodic successive change that roller seams. Accordingly, the response that roller seams displacement sensor speed and sensitivity, and the crucial technology that servo answered speed, discharge, journey and precision to become process of executive TRB rolling. TRB board includes in the data that plunges into the process that control to need to measure: Tensile force, take makings thickness, roller position, plunge into make force, the rotational speed of roller, give makings ply to wait. Had found a place for in corresponding position accurate sensor, get data immediately. Measures data should transmit the computer, computational course computation loses number to plunge into as it is said again machine, seam to boiling undertake controlling, to plunging into machine have instantaneous control [3] . If the graph is shown 2 times,pilot data is transmitted. Graph the 2 basic data that should collect board makings shell above all, the position position logarithm that adopts roll next undertakes affirming according to the appearance data of board makings, after appearance data affirms, seam to boiling undertake controlling, boil seam adjust boil to what need to plunge into the ply that make now seam clearance. Measure again next roll those who seam output end board makings ply infects a computer, computational judgement plunges into the ply that makes the ply that go out whether accord with need, seam to boiling immediately undertake modulatory controlling. The flow chart of data, if the graph shows 3 times: Graph character of 3 pairs of systems undertakes an analysis, the method that uses mechanism to build a model namely builds a system the mathematical model of each link, the mathematical model that builds according to these next has proper control to its. Mechanism establishs the physical process mechanism that modular method works according to effective system namely, below the condition that assumes in some kind, draw up according to corresponding theory on behalf of its attrib border condition is mixed initiative condition, using proper maths to handle method to reach the mathematical model that can reflect character of object movement condition correctly [4] . The basis builds the systematic model of each good parts, the picture gives roller of rolling mill of hydraulic pressure system to crack scheme of pilot transfer function. According to block diagram of this transfer function, use MATLAB language to undertake emulation, OK the between trends that rolling mill roller seams imitate to control is inputted actually and be outputted answers a concern [5] . 3 TRB board evaluation of application of applied foreground TRB is the serious content with decision-making design. Because apply a process to involve an area wide, influencing factor is much, because this must consider each aspects of application integratedly, for example efficiency of technology, production, economy is waited a moment. TRB but figuration sex is to show whether its accord with relevant punch craft requirement, it is the key that the technology evaluates, technology program argumentation and production treatment strategy are right reduce cost, shorten the development cycle, success that improves craft and mould design is led crucial. And these elements have ration already, also have qualitative, qualitative element is existing almost huge faintness sex, and each element is using a process medium weight suffers the effect such as technology, management, equipment again. Accordingly, exploring mutiple level, compositive faintness to evaluate strategy integratedly is the component with promotion TRB indispensable application. Altogether the applied foreground of TRB board is very capacious, of TRB board plunge into making research is very significant. CNC Milling CNC Machining