Use UG software establishs modular skill

The Unigaphics(UG) software that American UGS company develops is CAD/CAM/CAE of a collect the large CAD software at an organic whole. Use this software to have products plan, well and truly report 0, the appearance of package and assemble a relation, can realize what products plan, craft makes completely to change development without paper, can make with design of products plan, tool, tool wait for working synchronism to undertake, shortened greatly thereby product development cycle. But, the use of UG software is relatively complex, when undertaking the spare parts builds a model especially, UG software can build a model through a variety of ways, if can build diamonds, unplug protruding stage, use drawing is hypostatic, still can use cut way to wait even. Practice makes clear, afore-mentioned methods have advantages and disadvantages each. For example, lose data easily with cut way, should become " without parameter " after the model, this part basically cannot undertake edit and was modificationed again, can revise to the following model and dimension cause difficulty. So, build a model to should use best method as far as possible, avoid afore-mentioned circumstances to happen. The article is aimed at a few use skill that established a model to sum up UG software, summarize as follows: Before building a model, answer a model, especially complex model (the water room that is like radiator, housing note model with cast) make global consideration, establish modular order and method comprehensively certainly seriously. Let expression become usable in project attempt module. After entering project attempt module, the default setting of UG system makes expression becomes not usable, this means the method that cannot be worth through changing expression in project attempt module to change the model parameter of the spare parts. Right now, should be in only UGII-ENV.

The value of UGIIDRAFT-expressionS-OK of variable of environment of DAT file lieutenant general is set into 1, criterion expression dialog box still can be used in n/arc drafting module. Before undertaking basically establishing modular link, should microscope dimension, prevent occurrence fault to leak. Making water room for example " manage to find time " in the operation, if some part dimension is omited or make mistake, so in " manage to find time " after the operation, may cause a design because of the mistake of this part dimension to discard as useless entirely, affect development plan thereby. To complex model, answer to build three-dimensional entity model and 2 dimension graph to generate union to use. 2 dimension graph examines the dimension that the space examines not easily well and truly, and but conversely the validity that substance of test and verify builds a model, discover the problem of existence in time. The process that build a model should avoid generation as far as possible " without parameter " hypostatic, will cause huge trouble to changing size later otherwise. Generation " without parameter " hypostatic operation has: ① " Transform(is changed) " medium " Copy(is copied) " operation; ② " array " " mirror " operation; ③ undertakes in the light of a substance " cut off " operation. Above operation should avoid as far as possible in be used actually. Be planted to ① and ② is planted circumstance, should use as far as possible become same entity newly or " array " medium " rectangular array " and " circumferential array " will replace; Plant to ③ circumstance, should use as far as possible " cut fly " operation, in order to retain parameter adaptable property. Answer to check parameter in time after becoming a series of entity, avoid to make mistake. After the design has certain level, suggest by the product deputy canal helps examination measure. Answer to do backup more to complex part. Be aimed at the documentation with corresponding memory of different job phase, be lost with equipment file or recent photograph adjacent file can be called when attaint redo. Complex part should not use a documentation from A to Z, because certain operation can arise " without parameter " hypostatic, after saving file to disk, can no more return the substance with original all ready parameter, this measure is not reversible. Should finish after establishing model and modelling procedure, can serve as data base to weave with them CNC Machining program. Through be in MANUFACTURING module set and choice machine parameter of index of means, technology, cutting tool and the cutting tool of thick, finish machining correctly orbit, can undertake the CAM of the model. Through reasonable use the skill that build a model, UG software is OK and handy reliable ground builds more complex model. On the foundation of this model, use its to machine module to undertake analytic handling to the model, can generate a machine tool to process code directly, undertake on machining center the spare parts is made directly, reduce the development development cycle of new product greatly thereby. CNC Milling