When designing the tool part parameterized drawing program, the program is generally divided into basic input module, data processing module and drawing module and programmed separately. The three modules are relatively independent, and the data between each other is transmitted through the input and output parameters of each module. .
Due to the complexity of the tool geometry, the traditional methods are difficult to complete. Using the ActiveX technology in AutoCAD, the advantages of AutoCAD solid modeling are fully utilized, and a new structural thinking, namely the cutting method modeling, is proposed. The modeling process is as follows: constructing the composite (hair blank) → cutting into the embryo body (semi-finished product) → constructing the product (finished product).
The cutting method is essentially based on the advanced manufacturing technology for the product object modeling method. The molding process of the Boshan water pump manufacturer is consistent with the processing process.
The AcadLWPolyline object is called according to the bottom parameter of the cutter head, the blood oxygen of the breast is created by the AddLightWeightPolyline method, and then the Acad3Dsolid object is called, and the cutter head blank A is extruded by using the AddExtrudedSolid method; the origin of the user coordinate system is set at the tool tip point, XY The surface is the rake face, cut A with the XY plane, and cut B; reset the XY plane as the main flank face, and then use the XT plane to cut C; similarly, D, G can be cut; the user coordinate system is reset, The origin is returned to the tool tip point, and the XY plane is the rake face. The blade blank E and the blade blank F are created in the same way as the blade blank is created, and then the difference is created with the previously created entity. Blade head body H (semi-finished product).
As for the structural model of the cutter clamping part, it needs to be further processed according to the different clamping methods of the turning tool. Since the surface of the tool clamping part is mostly a complex space surface, the machining is generated by the relative motion between the tool and the part (ie, the difference operation). Therefore, when constructing the part solid model, it is necessary to program and use the program loop to realize more. Repeat similar operations.
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