How do you constrain parts in Catia Assembly?

What are assembly constraints?

Assembly constraints establish the orientation of the components in the assembly and simulate mechanical relationships between components. For example, you can: Mate two planes. Specify that cylindrical features on two parts remain concentric.

How do I create a constraint in CATIA V5?

Creating Geometrical Constraints

1. Select the geometrical elements to be constrained to each others, for example two lines to be set as parallel lines.
2. Click the Constraint with Dialog Box icon from the Geometry Modification toolbar. …
3. Modify the Constraint Definition dialog box. …
4. Click OK .

How many types of assembly constraints are available?

There are four basic assembly constraints, each with unique solutions and options. Used to define a tangential relationship between two parts. The tangent constraint is generally applied to circular faces and planar faces. One of the selected faces must be circular.

How do I fix components in CATIA Assembly?

Fixing a Component

1. Click the Fix component icon: Fix in Space. …
2. Select the component to be fixed, that is the light blue component. The constraint is created. …
3. Move the fixed component using the compass.
4. Update the assembly to see which component is moved: the fixed component returns to its previous location:

How do you invent the Constrain assembly?

The Constrain command is on the Assemble tab, in the Relationships panel. First, click the Constrain command and a window will pop up. There are 4 tabs: Assembly, Motion, Transitional, and Constraint Set.

How many constraints are there in Catia?

Like in most of the parametric CAD software, CATIA provides two types of constraints. When you give numerical value to a geometry, it means you have given Dimensional constraint. It may be Length or Angle.

How do you constrain a rectangle in Catia?

This one is pretty easy: Dig into the Rectangle flyout, and the Centered Rectangle will be hiding one spot from the right. Click the command, choose a center point, then click one more time to get the size the rectangle. The rectangle is automatically constrained around the center point.

How do I use constraints in Catia Assembly?

Select the Constraints of Given Components: Select the components, right-click and select xxx object -> Component Constraints contextual command. Editing Constraints: you can cut and paste , copy and paste and even delete constraints. Update an Assembly: constraints displayed in black indicate they need an update.

What are the constraints between parts in an assembly called?

iMates are constraint pairs in parts that define how a part fits together with other components each time it is placed in an assembly.

How many mating constraints are there in assembly?

The crank is assembled to the bearing using two mating constraints, concentric (called Mate: Concentric in SolidWorks and Insert in Pro/ENGINEER) and coincident-mate (called Mate: Coincident in SolidWorks and Mate or Align Surfaces in Pro/ENGINEER).

How do you fix components?

There are two ways of fixing a component: by fixing its position according to the geometrical origin of the assembly, which means setting an absolute position. This operation is referred to as “Fix in space”. by fixing its position according to other components, which means setting a relative position.

What does fixing a component do in an assembly?

It is recommended that at least one assembly component is either fixed, or mated to the assembly planes or origin. This gives a frame of reference for all other mates, and helps prevent unexpected movement of components when mates are added. A fixed component has a (f) before its name in the FeatureManager design tree.