The numerical control of vintage lathe is renovated

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  • source:LAURENDA CNC Machining
Yu Kelong of v/arc be on the throne / the German aerospace center near Bonn airport (DLR) subordinate " systematic technology " branch (SHT) major servicing is treatment and the part that service hydromechanical respect. Included part of a historical period of turbine head, impeller, whole among them dish, wind tunnel model, supercharger and testboard component (graph 1) . They are not undertake sheet for basic research treatment, basically undertake for trial production machining however, use in great quantities at measuring the installation space of sensor and wiring conduit for instance. The consideration that stems from heat to conduct a side basically used the structure of twin-circuit type. Damage to avoid Aussagekraft the trial production of hydromechanical respect, indispensible make sure very tall precision asks. The 1/200 that the highest public errand when undertaking assorted to install cannot ask normally more than -- even if the part of large wall turning that treatment diameter exceeds 1 meter far. And treatment batch is 1 normally. The factory of SHT the machining center besides use modernization, still using to have 32 years of the history, lathe of the K55 that produces by Ravensburg company CNC. This lathe can machine 4500 kilograms of heavy wool embryo greatly most, the length that hold clip most greatly 3500 millimeter, it is to undertake large turning the spare parts is machined and maintain indispensable facility. Director of this factory production Mr Frank Goerdel thinks this enlists in army period solid vintage equipment of more than 32 years still can satisfy be opposite in standard of DIN Germany industry at present the requirement of machine tool precision: "People finds the machine tool that has such and strong rigid structure very hard again nowadays, find impossibly with so inviting price at least. " graph of center of 1 Germany aerospace " systematic technology " sectional workshop basically is hydromechanical research department to process type with component. Include the turbine head that shows like plan institute among them, and leaf of impeller, whole dish, wind tunnel model, supercharger and testboard component. But the bottleneck that encountered control system ageing in producing a course, bring about operation personnel to cannot master quite completely thoroughly. This lathe did not deploy a microcomputer, and still undertake data logging in use card hopper, did not offer even necessary " man-machine interface " (graph 2) . Graph the 2 parts that will be changed: The control system of ageing, contain microcomputer and the technology of tape box automation that are used at recording cutting tool data to aid fast face-lifting by 2007, this vintage lathe got face-lifting. According to the view of Mr Goerdel, the rigid structure of this vintage lathe is very fine, enough answers those who control system and drive system to update. Final, the Xi Menzi company that is located in division grand obtained this order. German aerospace center to this be about to the requirement that the automation associate that proceed control system and drive system update raises is: Handy and shorter machine down time, good in quality and cheap in price solution, quick process designing and operation. Xi Menzi's experts cooperate together with the staff member of German aerospace center, devote oneself to to make optimize interface compatibility and plan, frequent face-lifting program. Foundation of Xi Menzi company the flange connect of SHT factory is custom-built special compatible electromotor. Need not change the part on the machine tool so, need to change simply only electromotor cable can, because use servo electric machinery,replace vintage dc electric machinery. Xi Menzi plans to replace the vitreous survryor's rod that still using at present with sensor of linear absolute value. "Open spacing switch perhaps needs to have referenced stroke when emergency stop button and loosen every time before cutting tool " , memory of Mr Stefan Haake says, he became the worker that this factory can operate this lathe exclusively almost. And nowadays, have the aid of and absolute value sensor need not undertake the journey works costing very long reference again. Automation system respect used the name is " Sinumerik 840D Solution Line " CNC software is united in wedlock " Sinamics S120 " series drive main shaft (graph 3) . And what operation interface uses is " ShopTurn " the system of factory process designing of series. Have the aid of these software, interface is compatible the solution of the respect appears very compact and come true easily -- the control ark that returned a province to fall to be used all the time two before even. Through using workshop automation software, make the standardization operation interface when system of CNC of series of use Solution Line also becomes especially simple: Systematic interior is already compositive all technology measure, saved PLC function sex to begin the expense of the respect thereby. Accordingly, the installation of workshop automation software is very simple, and can undertake during the machine tool moves. Graph respect of 3 automation system used " Sinumerik 840D SolutionLine " CNC software is united in wedlock " Sinamics S120 " series drive main shaft, and what operation interface uses is " ShopTurn " the system of factory process designing of series. Workshop automation software can create software of older surplus value ShopTurn compositive operation interface and process designing interface, and can undertake feedback according to the angle of professional. Such as installation, process designing, thick car or the measure of fine vehicle can be in graph of CNC program, seesaw pattern and the treatment that have install and supportive differring on the pattern plate of set beforehand are ordinal. Make encode of G of ShopTurn work measure can choose freely when process designing, and can be in the program combine freely. ISO program can be bound in aleatoric position and ShopTurn program, edit or enclothe. The ISO programmer that has experience can use the valuable knowledge that they accumulate accordingly, and need not learn to be able to use pure and fresh control system immediately again. This system still deployed USB interface and network interface, can guide existing program directly into new system need not any modification. This also is meant, the machine tool that provides ShopTurn software at present can it is OK to need not be transformed the aftertreatment that uses CAD system with SHT place directly implement be linked together and work in coordination. Simplify substantially software of treatment flow ShopTurn can simplify substantially the treatment flow of the workshop, here cites an example: Thick car - anneal - fine vehicle. Mr Stefan Haake says to this explanation: "We must be program of work out of thick car process above all previously, the final outline dimension that asks according to the place after anneal next undertakes correction. Need a paragraph of program to be able to apply to thick car and fine vehicle only nowadays, and can the mental allowance in process of thick car of give attention to two or morethings. " and outfit clip and the measure such as the setting is more simpler than before also at 0 o'clock (graph 4) . "Delimit the word is mixed the setting can be finished at 0 o'clock " , mr Haake explanation says. Graph the after operating personnel and face-lifting RavensburgK55 lathe of center of 4 Germany aerospace. Use new operation to the interface can accelerate process designing and simplify operation. The free outline order that processes need of hydromechanical component place is in the job that before is a take time. Need differentiates outline to undertake axle control of X, Y and interpolation for a lot of tiny line segment. "What we get DXF format file and free outline from inside CAD system now is umbriferous, the input after take these data and changing its is read to arrive in the CAD-Reader tool software in ShopTurn-Kontur program next control system. Subsequently, the design geometry element that we have in the basis on the machine tool undertakes correction " , mr Haake has a description to present flow method. Editor of collateral calculative Konturzug can is automatically next join of outline element setting is nodded -- if be on blueprint,cannot read directly take these positional data. In addition, in the program each data inputs a dot compositive microcomputer function. Accordingly, complex formula also can be able to input quickly, resemble handwritten and same convenient. This system still cancelled data of outline of handmade cutting tool to input equipment: Cutting tool of standard of DIN Germany industry was included to run a system in ShopTurn software. Had system of this cutting tool management, can avoid the risk of wrong input effectively. Mr Haake is mere accepted this after a few hours completely " new-style " machine tool: "Rely on brand-new user interface, present process designing and operation and photograph comparing is accelerated apparently before. " the rigid structure stability that after better stability and the K55 that taller quality Ravensburg produces lathe provides newest automation system, still can keep conspicuous. Because used newest science and technology, the time-interval that arrives to be renovated the next time will be longer. From investment time angle is calculated, because used innovation science and technology, the synergism of whole system got highlighting. Does the surplus value that this company place picks plan to you can be brought promote also clearly: ?  of shaming head Zhan is phlegmy be able to bear or endure cough of evil spirit of  exhausted ぷ rapids originally the installation of software of HopTurn of Xiao of  of look forward to of  of Wan Hui Pan Zhi, because this is OK very familiar to process designing and operation. The partner of SHT factory also has discovered automation system and lathe itself each other can cooperate well. Goerdel says: "It is normal that system of a complete set of used 3 days to run only. " whole debugged process altogether to use 1 half weeks only -- include to undertake remeasure to data of geometry of machine tool of a complete set of. Xi Menzi can provide total service, include to seek advice, entire component, installation and debug, groom software and spot groom. "We use ShopTurn software to be able to begin the work very intuitionisticly. " so far the job makes clear, vintage lathe combines brand-new automation system to be able to achieve better stability and higher exterior quality. Good regular character makes the machine tool can fall in the circumstance that does not have drafting apparatus also can special move quietly. Because the spot can hear cutting noise easily, acute flow control also can get simplifying. Because this cart bed had taller manufacturing efficiency and taller equipment actuate to lead, the scientific research activity of German aerospace center also had taller economy sense. The equipment with other centers of DLR of no less than is same, this workshop must reduce the budget 1/3 at least. The Ravensburg K55 machine tool that renovates through automation also proved the value of oneself. Finally, this kind can with relatively the machine tool that high accuracy machines large turning spare parts is already special and scarce. Accordingly, use current and newest automation technology to undertake face-lifting to strong machine tool, can make its continue to use quite long period of time, arrive to be renovated the next time still need very long. CNC Milling