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Viewing how matings work |
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To test or demonstrate the mating operation, one of the components involved in the mating should be set in motion. This movement must be performed in accordance with the parameters that were specified when creating the mating. In other words, for rotation you need to select the axis, and for movement, select the direction specified when creating the mating. This movement will initiate movement of the mated object — the response movement. The response movement of objects, in its turn, can initiate the movement of other objects mated with them, and so on.
To view the work of mechanical matings, use the following commands:
The initiating movement can be a component of a complex movement of the component. For example, to view the mating Rotation – Movement, you can use rotation around the axis with the Rotate Component command. When moving the rail with the mouse (see the Figure) the initiating movement will be the linear component of the rack's rotation. The linear component that is in line with the trajectory specified in the mating will be perceived.
If the object movement is not initiating and does not have a single initiating component, then the response movement of the mating objects does not occur.
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In the current model, it is possible to view only those matings that are overlaid on the components and objects of that model. |
When viewing matings, consider the following circumstances.
•Positioning matings can prevent objects from repositioning.
•In order for the rotational movement to be initiating, the axis selected for the rotation command must coincide with the axis specified in the mechanical connection mating. If the axis was selected automatically in the mating when specifying the object element, then it should be constructed, for example, as an auxiliary object.
•The direction of the initiating movement can either coincide with the direction specified in the command, or be opposite to it. All links of mechanical gears will move in accordance with the relative directions specified when creating matings.
•Rotation of a component or its movement along the path is not limited. To prevent one component from being "embedded" into another, it can be previewed in the collision detection mode.
•If the object that sets the direction of movement, for example, an edge, belongs to a mobile component, then the path will also change its position in space according to the mating conditions.
•You can create a mating of a moving object with a fixed one. In this case, a moving object — if its movement is not prevented by positioning mates — will perform a complex rotational or rotational-translational movement relative to the fixed one.
•To view the operation of the transmission Rotation – displacement , it is important that when creating a mate, you set the ratio reflecting the actual displacement of the objects.
•Previewing the cam-pusher transmission operation is possible only when the cam is set in motion. The concerted movement occur only within the faces specified as the cam’s work surface. Faces of the cam surface that are not specified in this mating may lose contact with the pusher.
•When viewing the cam-pusher transmission operation, visible contact may not be observed, as the working surface of the pusher is either an entire spherical surface or a flat face.
