Shmada

The gentleman listed this kind of turning machines the 3 large dominant positions of platform: 1, this kind of machine tool is OK and managing a large number of spare partses assemble and unassemble time 2, when the treatment cycle that goes up when face of A of a workpiece and B face is in lopsided condition, use this kind of machine tool treatment is very effective 3, workpiece is to use manual installation, still pass assemble and unassemble automatically, the cycle that wants turning treatment only exceeds the installation time of workpiece, so the design that Mr Camloh that the manufacturing efficiency of the machine tool is just the same introduced lathe of chuck of this kind of 4 axes in detail in the article, listed an example, how does the specification use this kind of machine tool to raise the production that processes periodic and complete different work to machine efficiency. 4 axes the lathe of designs Shimada-Kitako company 4 axes chuck of center lathe is to be in this company production designs on the foundation of 3 axes machine tool formerly. The outfit that lathe of this kind of 3 axes can use at rough machining, finish machining and workpiece at the same time normally gets stuck. Index plate has enough space to install the 4th main shaft, then this company raised a main shaft again on this lathe, in order to suit more compound turning machines large-scale. All sorts of lathe that Kitako company can offer main shaft to be decorated for horizontal and vertical. The chuck diameter limits of chuck lathe is 8in) of ～ of 100 ～ 200mm(4. If will look from the angle that operates personnel, the arranges as it happens to face operation personnel place of main shaft. Vertical lathe is used at the turning of big, medium-sized workpiece to machine normally, the chuck diameter range that its offer is 15in) of ～ of 200 ～ 380mm(8. The design of the machine tool can get used to the demand that automation handles, the treatment facilities that also can serve as a key or install manufacturing site through changing one's costume or dress. According to the estimation of Mr Camloh, in machine tool of many 500 when export the United States 4 axes, the machine tool that 90% is control contains automation system. It is the formal installation that includes with a project normally machine of the makings on type of door of a dragon (thin arm, double arm or 3 arms) . Return the arm of dragon gantry crane that can supply double independence, the manipulator that go up as the machine tool and installs on the floor in that way. The system is placed to go up to still can install barometer or bougie in these spare parts outfit, so that be divided in discharge,undertake metrical to the spare parts when the spare parts. For example, in can carrying these message control system, with compensating tatty cutting tool automatically. Two main shaft of the job in machining area are by its of itself turn tower or assorted cutting tool provide a service. Assorted cutting tool is used at the production of big batch spare parts commonly. Knife tower of the standard has 8 industry commonly, and contain 10 worker worker knife tower, can have reach 5 worker worker dynamical cutting tool. Whether to use dynamical cutting tool to should depend on auger cut, the time that operation of tap etc treatment needs. Mr Camloh says: "If this paragraph of time held the one much with overall periodic treatment, so undertake on milling machine treatment will have greater sense is not turning. Because this meeting makes,the spare parts decreases assemble and unassemble the value that time place brings disappears danger. " for example, in integral treatment cycle briefer case falls, the new work outfit of 15s places time to have great sense. What operate inside to including dynamical cutting tool however is longer treatment cycle, the time of this 15s appears so not important. The circumstance that machines cast-iron cover with lathe of 4 axes chuck and double axis lathe compares typical turning to use range lathe of 4 axes chuck is not certain agree with only the treatment need of big batch workpiece. Mr Camloh says: "The batch that the bed also agrees with to be controlled 500 times machines chuck car. " this chuck lathe normally treatment application limits is as follows: 1, the spare parts of a type can be in 4 all chuck (undertake turning is operated in AA/AA) 2, the A face that in a chuck at the same time turning machines a spare parts, it is in another chuck (AB/AB) turning is same the B face of the spare parts 3, the A face that machines a spare parts in the turning in two chuck at the same time, be in additional in two chuck (the B face of same part is in AA/BB) turning especially A face and cycle of B face treatment are relatively longer with treatment operation lopsided circumstance falls, the lathe that uses 4 axes to design a form is most effective to the treatment of afore-mentioned the last example. According to the cast-iron cover that lists in the watch treatment has a consideration. The A face turning of these spare partses, boring and prejudicial auger cut treatment cycle to be 59s, and the boring of B face and cycle of end panel treatment are 23s. The spare parts installs calorie of time 12s. The A face that if use the turning of a main shaft of lathe of a double axis,machines this spare parts, turning of another main shaft machines the B face of same part, so the main shaft that machines B face is about the time of unused 36s. It must await another main shaft to finish grow the treatment that amounts to 59s to operate. Can see from inside this example, the treatment that completes a part needs the time of 71s, because overall treatment cycle is equal to the longest treatment,operate what time adds a part to assemble and unassemble time. On the other hand, undertaking when lathe of 4 axes chuck AA/BB processes an operation when, its are overall on the foundation that machines cycle to build the average treatment cycle in A face and B face. After the A face of two spare partses completes treatment, index plate is met to the others two main shaft undertake graduation, begin the B face treatment to additionally two spare partses. Can see from this example, every machine two spare partses to need 85s. This makes clear, the handling time that completes each part is 42.

5s. In addition, the main shaft utilization rate of lathe of 4 axes chuck was achieved 98% , and the main shaft utilization rate of double axis lathe is achieved only 32% . CNC Milling