Of module of function of machine tool motion achieve reach assemble

Summary: Emphasize those who elaborated module of function of machine tool motion to achieve relation of description of set prescription law, parameter, geometric constraint to reach assemble a relation, developed corresponding machine tool system of software of CAD of plan of total construction distribution (MGSCAD) , gave out to use example. Develops software system can realize a machine tool the automatic, fast design of total construction composition. 1 preface undertakes for scientific ground the innovation of machine tool product is designed, the machine tool that appeared to start type newly in recent years devises a method, this method is cutting tool mixes the basis to be machined exterior information, the analysis is moved by the figuration of treatment surface, undertake the function is achieved athletic, form athletic function module, press module of each motion function different assembly relation combination rises, fashion a machine tool plan of total construction distribution. The article basically introduces how to undertake athletic function module achieve the assembly with module. Of module of 2 motion function achieving a machine tool to written guarantee configuration condition is achieved basically is achieve those who become a basis in order to move. Achieving gotten athletic structure form according to athletic function is not of figure, the exercise that needs an every coordinate way and one or more motion connection rises, we move this call module of radical movement function, module of radical movement function is opposite have the aid of the machine tool undertakes structural configuration be achieved, ability makes athletic structure form incorporate, direct change. The basic measure of functional module starts the style of athletic function structure in the machine tool in, be it is with foundation fiducial, give cutting tool side and workpiece side athletic allocation. Be like W/X of style of athletic function structure.

ZY/gp/T[" W " show work, "T " express cutting tool, with " .

" represent a foundation (foundation) the position, arrive from fundamental position " W " between show workpiece side, "X " state this side allocates the campaign that has X coordinate way, arrive from fundamental position " T " between show cutting tool side, "ZY " state this side allocates the campaign that has Z coordinate and Y coordinate way respectively, "Gp " express advocate motion moves for the circumgyrate of cutting tool, "/ " for separator] . Cutting tool side and workpiece side will be divided to introduce configuration of machine tool structure to achieve set prescription law and step below. Build a machine tool overall coordinate is, certain treatment space (graph 1a) . By treatment the journey moves surely at the beginning of the space. (A)(b) pursues 1 cutting tool and relation of treatment space position fasten azimuth of affirmatory cutter spindle according to coordinate. For example: The cutting motion of cutting tool is Gp, box of main shaft of choice horizontal layout (graph 1b) . Implement the structural form of function of motion of cutting tool side certainly. The relevant appearance that the property according to unit of athletic travel, motion and module of on one class will come to combine ministry and module of below one class certainly and dimension. Implement the structural form of function of workpiece side motion certainly. For example: With the treatment of workpiece the space is fiducial, can determine the position of workbench. The dimension that joins a department according to X direction journey and workbench can determine the length of base or breadth, base height should satisfy the requirement of the three-dimensional dimension in machining a space surely really. The dimension of workpiece side and cutting tool side is harmonious. The consideration journey, measure that withdraws the circumstance such as knife and interference to need pair of both undertakes harmony. The dimensional size of the module of function of motion of data structure description of athletic function module and appearance can use the following data structure and method to describe in Auto-CADADS: Struct CParameter {intType: Struct MsizePara{Ads RealCy1D1, cy1D2, cy1L: / / of cylinder or round stage go up, diameter leaving a top and high Ads RealCubeX, cubeY, cubeZ: / / cubic length, wide, tall IntSideN: / / random counts Ads RealRelX[SideN] by the side of polygonal, relY[SideN] , relZ[SideN] : / / polygonal} of each edge length: }MSize: VoidSetMSize(structCParameter*s, intModelNo) : / / VoidGetMSize(structCParameterCs of setting module dimension, intModelNo) : / / each athletic function module that check gives module dimension to reach for the foundation with style of athletic function structure should be satisfied in the space assemble a relation, namely module of function of a motion is in random dimensional position of rest depends on the position of module of a function and dimension, and the position of rest that its position and dimension affect next function module again, because this relies on the data structure of above and method to describe functional module still cannot realize the space between each module to be assembled automatically only, also cannot realize the dimension parameter in CAD to change drive, the data structure that still requires pair of function module so adds descriptive parameter and method, specific as follows: Struct CParameter {... Ads PointLocation: / / Ads PointOriention of position of rest: / / directional vector of the function... } : VoidGetOriention(struct CParameter*s, int ModelNo) : / / the directional vector VoidSetOriention(struct CParameter*s that check gives module, int ModelNo) : / / the directional vector VoidSetLocation(struct CParameter*s that installs module, int ModelNo) : / / the initiative vector VoidGetLocation(struct CParameter*s that installs module, int ModelNo) : / / the initiative vectorgraph that check gives module give typical examples of 2 ties concern pursues the assembly of 3 component module connection relation introduces structure of functional module data and method to describe functional module, frequent depart can undertake to its in designing a process, assemble and adjust. Additional, build the database of functional module, make the one part of the graph library of AutoCAD, can more efficient, design a form conveniently the machine tool of each different. After the module of function of dimension parameter drive that 3 module assemble had the describes parameter method of above, provided necessary basis for the assembly between module, and should finish the space between module to assemble truly still must establish the geometric constraint relationship between module. Relation of geometric constraint of geometric constraint relation is the crucial place that builds the parameter that is based on a tie to change a technology. When the assembly between affirmatory structure module concerns, the article introduced geometric constraint. Geometric constraint can divide it is two kinds big: Structural tie and dimension are restrained. Structural tie is according to geometrical element the develop between attacks relation or other relation are denotive tie. It divides relation tie and blame relation tie again. Relation tie includes parallel, perpendicular, tilt, tangent, homocentric, joint, symmetrical, wait into scale (graph 2) . Blame relation tie includes oneself level and oneself perpendicular. Dimension tie is the measure that adopts each geometry element denotive tie, for example distance, angle, radius, diameter, pour horn to wait. Assemble a relation after the appearance of each component module and measure are certain, the assembly between them concerns to come by relation tie demarcate. In designing a process otherwise decides the dimension of modification component module and form, what the module to make revise does not affect whole machine tool is overall assemble a relation, before getting overall assembly drawing, must want one by one all module concern with judging the join between module and develop attacks relation, have a record to its. The join relation that the catenary watch structure that if the graph is shown 3 times,defines for this will come record them and develop attack relation. Graph 3 in the oneself hand that Ai shows module, bi shows the relation hand of module. The data structure that the article uses is helpful for realizing dimension parameter drive, change when the dimension of component part module namely hind, the develop between it and other component module attacks the relation is changeless. More be helpful for seriation, standardization design and revise to having a design to make inheritance. The article uses 4 application example afore-mentioned principles and implementation method, it is W/X to athletic structure style.

The horizontal machining center of ZY/gp/T undertakes CAD layout is designed, assess the feasibility of this software system with this. Parameter input: Spare parts group appearance: Casing spare parts group the largest size: After × 1200mm × 600mm undertakes to horizontal machining center dimension plans, tall =800mm of long × wide × gets following main technique parameter: Dimension parameter: 1400mm of × of workbench dimension 900mm: The journey (750mm of × of 830mm of × of Z) 1000mm of × of X × Y: Graph 4 W/X.

The horizontal machining center of ZY/gp/T is overall parameter of distribution plan texture: Ø128 of main shaft external diameter.

57mm: Cutting tool is the biggest diametical Ø125mm: Cutting tool is the biggest length 400mm: × 3560mm of × 3660mm of 3994mm of machine tool over all dimension: Dynamical parameter: Advocate electromotor power 11kW: Decide according to style of athletic function structure and layout regulation the basic measure of each function module reachs horizontal machining center assemble a relation, the total position that uses this software to if the graph is shown 4 times,be generated pursues. CNC Milling