Constrained NC machine tool scale and scale design

Constraining the design dimensions during the design process, such as the design of a rectangular body, first determine the type of constraint before design, that is, determine the use of one or several ratios, custom ratios, or free proportions to constrain. After inputting the first corner point in the drawing view area, the system enters the constraint solving process. (The so-called constraint solving refers to the system automatically calculating the constraint based on the current position of the mouse based on a specific coordinate. The optimal size of a coordinate, that is, the process of having a dynamic search and comparison), after all three corner points have been input, the geometry that satisfies the proportional constraint and is close to the user's original input is obtained. This method is used to constrain the proportion of the geometry itself. Its advantage is that the system optimizes the user's input in real time during the user's design process. The optimized result can be dynamically displayed, and once the constraint type is determined, the user's operation and The normal design operates exactly the same. In addition, this design method is applicable to a wide surface. When the switches of all constraints are turned off, they can be degraded to an ordinary design.

Proportional capture is the establishment of a proportional grid construction point that is convenient for user data capture. The system can select a grid that satisfies the integer ratio or the golden ratio according to the requirements of the user, so as to ensure a proportional relationship between the data points. For the modulus theory, the system newly sets the view unit according to the size of the window, and then uses the red ruler and the blue ruler of the modulus theory to establish the grid coordinates. The user captures the generated data points in accordance with the modulus theory, thus generating the geometry between the The proportional relationship satisfies the modulus theory. This method is used to constrain the proportion of the geometry itself and the proportional relationship between the geometry. At the same time, it also makes the shape size correspond to the statistical data of the human body, thus meeting the requirements of ergonomics. The advantage of this constraint method is that it can ensure that the capture points of all geometries satisfy the same proportional constraint relationship. It not only constrains the proportional relationship of the geometry dimensions, but also constrains the proportional relationship between the geometry positions. When the capture mode is not used to input data. At the point, the design degenerates into a normal design.

Proportional rounding is the optimization of a given geometry for a relationship. Similar to the proportional design, the type of constraint is first determined before design. After specifying the rounding reference (the default is the overall width of the machine), select the geometry to be rounded to create a rounded selection set, and round the geometry in the selected set one by one. The rounding method is to first calculate a certain size of the geometry and The ratio of the base dimensions, the new ratio is solved based on the constraints, and then the dimensions are inversed and corrected. The rounding of the scale maintains a certain aesthetic relationship between the geometry and the reference size, thus giving the machine form a unified and coordinated feel. It has the advantage that the user can optimize the components or the geometry of the component components. This constraint is implemented after the design is completed, so it has strong flexibility. Therefore, on the basis of in-depth study of the characteristics and requirements of the industrial design aesthetics "proportion and scale", the NC machine tool proportional and scale modeling design method based on constraint modeling is proposed. The use of proportional and scale constrained modeling methods allows designers to accurately design machine profiles that conform to aesthetic principles.

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