外文翻译---四工位组合机床的设计与研制-数控设计(编辑修改稿)

外文翻译---四工位组合机床的设计与研制-数控设计(编辑修改稿)内容摘要：

e end of the seventies, like Alfing , H 168。 185。 Movement characteristic curve of ller2. Because electric liquid proportion valve control system Hille and Ex2cell2o ,etc. pany develop numerical control process module and flexible transfer machine in succession (F TL), Numerical control made the lathe and flexible transfer machine up and increased year by year from then on. Between 1988 and 1992, Japan made the lathe and transfer machine (the specialpurpose lathe including some other forms ) up the numerical control rate of the output has already reached 32 39, The numerical control rate of output value reaches 35 51。 Germany make lathe and numerical control , transfer machine of output up, engine for 18 62 trend rate that variety increase day by day of being etc., the numerical control rate of output value is up to 45 %66 % 2 The designs of four engineering location association lathes Sureness of a craft scheme Make up lathe to a certain part or some Engineer process and design, The craft scheme is the key to making the lathe up to design, It according to process into structure characteristic of part , process position , size precision , roughness and other specification requirement that process is it is it design to confirm to e. It is an automobile hub to process one .In before whether dish set up car the processes last round already, Require that processes the hole of 10 times 27+ on circumference one of 375, The persons on a public errand of its position are 00. 12, The roughness is 3. 2. Craft scheme should confirm crude finish machining goes on separately , Namely get into 25 hole first, then reaming reach 26. 6, precise dumpling hole reach 27, Consider the machining accuracy and process of the part concentrate the principle , thick finish machining is amalgamated a process is carried on on a lathe. Therefore confirm drill of lathe , expand , cut with scissors three worker person, in addition worker of loading and unloading work piece location, so named four engineering location association lathes . Dispose the pattern and structure scheme The disposition pattern of the lathe depends on the machining accuracy of the part and craft scheme processed mainly, Should consider that can realize the craft scheme soes as to ensure the machining accuracy , specification requirement and production efficiency of the part。 And also it is easy to operate to consider, easy to maintain, cool and arrange the bits in sound conditionly . The disposition pattern of this lathe belongs to and makes the lathe up largescaly, Total weight is about 21t, total power 17. 5kW Four sets of specialpurpose jigs are installed on the gyration workingbench of diameter 1250m, Form four pieces of engineering location , Install HY80 standard slippery platform with its corresponding post, Install the standard power head and specialpurpose main shaft case on the slippery platform, Gyration centre on and can39。 t turn machining center , main shaft of case round workingbench of to in, bee the vertical vertical overall arrangement. Loading and unload the work piece and processing the work piece can go on at the same time , does not interfere each other, Already cutting time and auxiliary time of the lathe has been coincident, thus improve the working efficiency of the lathe . the main ponent of the lathe up Lathe bed The lathe bed part must be enough bearing capacity and enough dynamic performance of rigidity and overload and store sparsly, so as to ensure that can keep its correct relative position for a long time between every part. Make up rigidity and precision keeping of part of lathe guarantee by the lathe bed part Lathe this lathe bed is it turn workingbench base round , set up of base , post and post cushion ,etc. form mainly to disappear. They play a making the basic skeleton of the lathe up role. Lathe bed part including counterweight weight is it make lathe total more than 70% of weight up to reach, therefore have good rigidity and antivibration performance , settle good foundation for guaranteeing the machining accuracy of the lathe . Slippery platform To is it is it enter give power part of sport to realize to used for slippery platform, It mainly by slippery platform, slippery pedestal and hydraulic pressure cylinder 3 part make up. The slippery pedestal is fixed on post, the cylinder block of hydraulic oil is fixed on slide , cylinder rod and slippery platform join each other, When working, hydraulic pressure cylinder regular, cylinder rod bring slippery platform make round sport at guide of slide. This slippery platform of hydraulic pressure of lathe belongs to the largescale slippery platform, enough energy stores . Slippery work of platform is it enter , stock and soon retreat 3 kinds of states altogether soon to have. Its movement was controlled together by the electric system and hydraulic pressure system. Install power heads and main shaft case on the slippery platform , is equipped with the pulley block of steel wire rope on the slippery tops , another end contains the counterweight one in the post, the purpose is to make the slippery platform move lightly on the slide , and can prevent the slippery ends from being overweight and glide . Power head and main shaft case The power head is the drives of sports of the main shaft , It drive each , main shaft of case output main shaft make cutter decide body sport. This lathe is got into, expanded , the diameter of hole cutter of dum。