MicroStation emulates medium application in CNC Turning treatment

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  • source:EAMOM CNC Machining
The faces mechanical industry professional software that MicroStation Modeler is development of American Bentley company. It is a kind compatible the three-dimensional model platform of a variety of operating systems, offerred parameter to change, the tool of three-dimensional and hypostatic mechanical design that variable is changed and is based on a feature. Use it to be able to enhance the design ability of the user, implementation is shared inside enterprise limits and manage project data, it is thereby mechanical design, analysis and make offer advantage. It includes 2 dimension plot, hypostatic modelling, curved surface model, assemble, project attempt is generated, the module such as Sheet Metal Fabrication and animation apply colours to a drawing, still offerred MDL of process designing interface (MicroStation Development Language) , undertake 2 times developing for professional user. Treatment of numerical control car is commonly used treatment method. Press the amount cent of tool carrier, numerical control lathe has the form such as single tool carrier and double tool carrier. Usually, range of application of CNC Turning of single tool carrier is wider, process designing is very not complex also, treatment of CNC Turning of double tool carrier uses much knife at the same time cutting is machined, can shorten man-hour, improve manufacturing efficiency, get popularizing gradually in batch production, but numerical control to program is more difficult, cycle of manual process designing is longer. The common characteristic of these two kinds of lathe is treatment before adjust workload big, improve manufacturing efficiency very hard. To improve quality of CNC Turning process designing and process designing efficiency, the author uses the MDL that MicroStation offers to develop the animation function of environmental peace stage, developed numerical control code to emulate a program, realized 2 peace keeping to emulate a function what three-dimensional turning machines in real time. This program passes the interface document that designs with craft, used the means with visual image to realize logarithm to dominate the desired result of code, have very great help to saving man-hour and raw material to use up. It waits for treatment face composition by tire, spoke, tread, flange, laryngeal. Branch line working procedure uses CNC Turning treatment. Because the structure of this product keeps basically changeless, new product is dimension makes a part alter only, suit to change control to realize treatment to emulate on the computer through parameter quite so. One, data prepares 1. The parameter that establishs tire model and machine tool model to use MicroStation to offer turns the three-dimensional tool that build a model, build spare parts model and machine tool model. When building a model, answer to decide the position between blade holder and tire, tire and process designing origin and tool carrier and blade holder affects strictly. 2. Because be designed in craft and turning copy has really,data is collected, so, it should design link to get data of contrail of concerned cutting tool from craft. Cutting tool contrail includes: Kind of key word of process designing origin, sentence pattern, program, treatment type (speed / the pace is entered / walk along increment) , blade holder date, knife filling date, cutting tool slants contrail of buy, treatment (linear / circular arc) , time of speed of speed of rate kind, main shaft, feed, time-out, answer. We use style of text file structure to record afore-mentioned information, following place show: 0 0 LCS28 1 LINE 0 1 1 40 0 910 1360 49.

665 633.

093 94 0 140029 1 LINE 0 1 1 40 0 49.

665 633.

093 105.

173 448.

871 94 0 1400... ... ... 45 2 ARC 3 1 1 40 0 463.

4 113.

21 465.

05 90.

373 227.

439 94 0 1.

247 2 ARC 2 1 1 40 0 465.

1 90.

373 451.

792 59.

82 507.

439 94 0 1.

2... ... ... 0 8 SUBEND0 9 FINI 2, the purpose of simulative of contrail of cutting of numerical control of imitate of 2 dimension contrail of CNC Turning is the athletic contrail through cutting tool drafting in screen upper mould, have desired result to NC program, if CNC Turning of double tool carrier, criterion at the same time the measurement of will left, right tool carrier and treatment subprogram are translated, generate the cutting tool that uses for machining analytic module to process document of athletic contrail data. The design thought of simulator of 2 dimension contrail is to call the mental allowance that measures a subprogram to measure this semifinished product to distributing, deposit cutting parameter in R parameter, call treatment subprogram again, the effective treatment process of imitate workpiece. Notice the program should have breakpoint to check a function in process designing, can interrupt treatment process artificially, inspect treatment condition next in emulation module through emulating, with making sure treatment can continue safe, reliable ground undertakes. The program reachs graph of spare parts, semifinished product to serve as an input with detailed list of NC program, cutting tool, it is the basis that hold a knife with cutting tool detailed list, output machines file of athletic contrail data, cutting tool to machine orbit graph, processing process file and make mistake information file, help the mistake in program of NC of user fixed position. 3, the three-dimensional animation imitate of CNC Turning 1. The animation in making crucial frame use MicroStation makes a tool, the beam that makes a machine tool respectively (edge X axis is mobile) , pillar and tool carrier (edge Z axis is mobile) , tire and 3 card are ungual (circle Z axis to rotate) 3 animation part, gift respectively its corresponding freedom is spent and part origin. After establishing a role, part of one's job is not founded the dot that change a knife, right knife dot, begin cutting, cutting the end of medium, cutting, crucial frame that removes a knife to answer point of safes, the accuracy that ensures crucial position is emulated. 2. The athletic parameter that sets each part and animation weave in turning treatment, the rotate speed coming back of the floating rate that should set tool carrier, beam and tire is spent, control the movement of each part mensurably thereby. After the preparative work that treatment emulates is finished, can weave each crucial frame and view, and transcribe is script file. 3.

Machining car of emulation numerical control to machine emulated target is: In the machine tool in three-dimensional model environment, realize dynamic graph to emulate treatment process, examine the knife after adding man-hour face and be concerned by the position between treatment face, whether to interfere with desired result both, among them cutting tool library and machine tool library are open, the user can complement among them content. Change animation design according to the parameter of above, use animation player to be able to achieve afore-mentioned goals. 4, the implementation process that the CNC Machining of the wheel tire that the article introduced to be based on MicroStation emulates the last word. Use tool of this platform MDL and more perfect animation function, through figure direct way realized logarithm to dominate the desired result of code. This has very great help to saving man-hour and raw material to use up. In the treatment that this method can popularize congener spare parts. CNC Milling CNC Machining