Be based on the fictitious design of the mechanical plane shear of SolidWorks

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In the light of mechanical plane shear 2 dimension design the defect that the method exists, use fictitious design technology, whole is adopted to build below SolidWorks2009 environment model, fictitious assemble reach examine, finite yuan of analysis and generate a project to pursue the fictitious design that 4 measure completed Q11-13*2500 mechanical plane shear, shortened development cycle, improved product quality. 1 foreword plane shear is mechanical industry be used at cutting off metallic stuff, kind mechanical equipment, be made in machinery widely and repair wait for a branch to use, it is each industry department uses device of the most extensive board makings clipping. In the mechanical plane shear of small norms because the structure is simple, safeguard easily, travel time is advanced characteristic, go up in the crop of domestic and international plane shear still be in the majority. On the design of mechanical plane shear, major company still uses 2 dimension to devise a method, but before the method of 2 dimension design of convention of mechanical plane shear basically relies on experience and analogy to be the same as model machine, the repeatability of the design is big, cycle is long, dependability is poor, design precision and quality still are the influence of the element. SolidWorks of three-dimensional design software undertakes have the aid of mechanical plane shear is fictitious design, not only can the geometrical appearance of plane shear of bona fide report, return the dimensional position that can reflect each part, detect effectively then whether does equipment produce interference and collision between each component, still can undertake further finite yuan of analysis computation. Additional, solidWorks software still can finish parameter to change a design, the development that can be new henceforth product establishs fundamental model, raise the durability of the design, shorten be out of shape the design of the product is periodic. Accordingly, the fictitious design that studies mechanical plane shear has fundamental economic value. Technological process of 2 fictitious designs applies Solidworks to undertake fictitious design, want to design the job clearly above all, conceive a sample roughly outline; Be arranged then and draw up design program, refine a requirement, analyse the dimension of computational component, build a model to the spare parts; Assemble to the spare parts after that, form assemble system and examine; Undertake to crucial component then finite yuan of analysis computation; Make plan of 2 dimension project finally, consign manufacturer is machined. Design circuit, if pursue,L place is shown. Graph flow chart of 1 fictitious design 3 design stage 3.

Structure of 1 mechanical plane shear uploads the mechanical that use formula with columnar gear now plane shear machine is exemple, if the graph is shown 2 times,its form a structure. This machine tool is main by system of frame, transmission, tool carrier, press adjusting gear of clearance of glassware, stopper, razor blade to wait for component composition. Its job process is: Axis of electromotor drive flywheel, repass clutch and eccentric shafe of drive of gear decelerate system, drive upper tool post through connecting rod next, make its do fluctuation reciprocate, undertake cutting the job. Mechanical plane shear organizes knot composition of a picture, if pursue,2 are shown. Graph structure of composition of 2 mechanical plane shear pursues 3.

Software of three-dimensional design of the 2 hypostatic SolidWorks that build a model is a parameter that is based on a feature turns tool of the hypostatic design that build a model. Parameter changes a feature to build modular design to be able to go to the lavatory not only the client puts forward parameter to revise to the product make accord with real need, and can promote an enterprise to be designed to the innovation of the product. Develop the product of the requirement to according with a design, use model of direct modification feature or relation to implement akin part the design of different parameter. Nextpage feature builds modular process to choose feature of attribute of feature of diagnostic type, definition, arrangement to build order to build the course of the spare parts thereby namely. Before entity is built in SolidWorks, want to undertake to entity structural feature is analysed above all, affirmatory feature builds early or late the method that order and every feature establishs, builds feature as far as possible simple, parameter dimension as far as possible little, the modification of dimension should decrease as far as possible when building a feature, at the same time guarantee against causes the change of other feature. The feature builds a model begin from draft, can build draft, also can use original the DWG file that founds in CAD creates draft, the drawing that uses SolidWorks software to offer next, rotate, the method of modelling of basic system feature such as scanning, lofting and round horn, horn, take case, unplug the method of project feature modelling such as Fu of guide of model, muscle, aperture, bag, the accumulation that passes pair of features, cut dig and intersect wait for combination to finish entity to build a model. When building a model accordingly the spare parts every, treatment appearance defines a feature, recycle the combination of all sorts of features builds a model with respect to what can complete a part. The plug-in unit in using SolidWorks software at the same time can make certain part quickly, if use Geartax plug-in unit to be able to make gear quickly, use Toolbox to generate certain standard component to wait, very convenient and quick. Pursue for example 3 gear in showing transmission system use Geartax plug-in unit to generate matrix namely, second birth completes the design of gear into the feature such as excision, array. Graph model of 3 gear spare parts uses parameter to change design train of thought as a result of SolidWorks software, well and truly report is changed to arrive in what entity builds the place in the model to do in assembling attempt of body, project to wait for corresponding and associated module, go, and need not pursue like 2 dimension CAD again in that way, after changing a part, must make in assembly drawing at the same time alter accordingly, discharged needless trouble already so, assured the accuracy of the design again. 3.

3 assemble assemble body to design cent to be fall oneself to the top (Down-TopDesign) and top-down (Top-Down Design) devises two kinds of methods. Fall oneself to the top be a kind from local the design method to whole, in should assembling system, contain more repeat appearing component, or assemble body component between cooperate when the relation is relatively simple, first consideration this method; Top-down design is arrive to devise a method locally by whole, this method is applied to cooperate complex, mutual influence to cooperate what over all dimension of more, most component did not decide to concern each other assemble system. Two kinds of methods also can combine application, make a design more quick. In this design because spare parts of mechanical plane shear is more, and have duplicate a part, coordinate a relation complex, certain part dimension decides not easily, because this uses top-down and the design method that issue to be united in wedlock to the top oneself. When assembling, decide frame is above all fixed, again ordinal guide other the component that already had built, to the part that dimension decides not easily, can use the assembly between the spare parts the relation makes new part, for example transmission shaft and go up the join spare parts between crossbeam, because dimension is bad to decide, can use in assembling system pattern mix with transmission shaft on the assembly of crossbeam concerns make a part. Guide after person spare parts, want to make what essence of life allows is achieve to cooperate between the spare parts, must build accurate assembly to restrain, the system is cooperating offerred below menu include angle, coincide, coaxial heart, distance, parallel, perpendicular, tangent, lock to decide 8 kinds of standard set and semmetry, width to wait for 6 kinds of tall grading to close and 5 kinds of machinery such as gear, cam cooperate, can use these cooperating that set entity accurately, these restrain those who make to assemble body to be close to more assemble system actually, whole assemble a process to be just as like undertaking in actual production objective is assembled, relatively distinct. The assembly that should notice gear in this design and the correlation that press the spring on glassware are designed, cannot realize the true sport of the orgnaization otherwise. The examination that SolidWorks has to assembling system basically includes collision examination, dynamic clearance to detect, bulk interference is checked and assemble body count to wait for a function, use an examination to assemble the validity after each component assemble system, there can be experience of have nothing to do with between judgement component, the phenomenon of mutual jackknife does not appear in order to make sure two spare partses are in random on the space. Will check the clearance between component through move or rotating, avert interference of the generation when objective is installed, discover the problem undertakes in time modification to the model, till the result that achieves satisfaction. 3.

4 finite plane shear is in yuan of analysis mechanical in working process, main shaft is main drive and working component, use compositive COsMOswork8 is embedded inside SolidWorks finite the main shaft that has positive drive device, connecting rod and frame unit to assembling assembles yuan of analysis software body undertakes finite yuan of analysis computation. Establish institute the model to undertake simplifying above all, oversight round role pours the design detail such as horny keyway, seize port through criterion numeral, transfer into COSMOSWorks is finite yuan of analysis module, undertake hypostatic reseau differentiates, add axial one aspect of the matter " cannot translation " distributinging pressure of load of tie, bearing and two connecting rod, undertake next finite yuan of analysis computation, get distributinging circumstance of stress of plane shear main shaft, meet an emergency is mixed be out of shape state, computation gives bit more dangerous stress and meet an emergency, for the structure of main shaft the design provides guidance, be opposite at the same time the design is reasonable undertake accurate and fast assessment. 3.

5 projects attempt although the development as science and technology, three-dimensional design technology had very great progress and progress, but three-dimensional model can not be clear about all design parameter expression, if some information process the precision of the requirement, form tolerancepublic errand and exterior surface roughness it is clear to still need attempt of project of planar of have the aid of to convey its convey its, accordingly, the project pursues founding is the important segment in three-dimensional design. SolidWorks uses model file to be able to be changed automatically into project attempt file quickly. With conventional computer auxiliary plot photograph is compared, the umbriferous way that uses model file to generate project attempt to need to appoint a model simply only, measure that inserts a model or add other project attempt detail, with respect to the operation that achievable project pursues. The figure that passes changeover is very exact, and can make all sorts of view, if cutaway view, axis surveys graph, local enlarge plan,wait. Through setting blueprint size, fill the operation such as headline column, can generate the 2 dimension project that accords with mechanical cartography standard to pursue. Specific if pursue,4 are shown. Graph 4 mechanical plane shear assembles system 2 dimension project pursues the fictitious design of the mechanical plane shear that 4 conclusion are based on SolidWorks, make full use of the powerful function of software of SolidWorks three-dimensional design, realize the fictitious design of pair of mechanical plane shear, to explore the new design of mechanical plane shear the method offerred good way. Use this technology but the error that as soon as possible discovers the design is medium, reduce design cost, promote a product quality. Practice makes clear the fictitious design technology that is based on SolidWorks software to there is good applied prospect in the design of plane shear. CNC Milling