2.3 Creating Standard Components
2.3.1 Create Screws
¾ Click the RHM button on and select Show Only in the MoldWorks FeatureManager Tree.
¾ Activate MoldWorks > Add Component or click the Add Component Icon . The Add Component control dialogue box and the Component Library dialogue box appear together.
¾ Click the Screws tab.
¾ Select the Cap Screw.
¾ Click .
The Start Face dialogue box appears. Here we define the face from which the components will begin. Actually the positioning sketch for the components can be defined anywhere;
MoldWorks projects the positioning sketch onto this face.
¾ Select the bottom face of Plate3 as the starting face for the screws. Make sure that the name of the face is entered into the Selected face text box.
¾ Click .
The Position dialogue box appears.
¾ Change to wire frame mode.
¾ Change to normal view.
¾ Open the sketch palette and create the following sketch. (Connect the centers of the corner fillet on one side and dimension 10 from the distance on the other side)
This sketch will be used to define the positioning of the fixing screws. It is not mandatory to define it as a rectangle. Points, circles and polygonal lines can be used as well. The sketch can be on any plane in any part or in the
assembly. The actual positions are calculated from the starting face.
¾ Close the sketch.
The sketch now appears in the Position dialogue box.
The number of component positioning points is automatically displayed in the dialogue.
Make sure that the Duplicate to instances button is activated. This insures that components, which penetrate an insert, will be duplicated to all its
instances. Deactivating this button will create the components ONLY for the specific insert.
¾ Click
The Screw parameter dialogue box appears.
And the initial preview of the screws at the 4 locations is shown.
¾ Change to front view.
¾ Click the See Parameters icon . The component graphic help appears.
The graphic help defines all the modifiable parameters. Some of the
parameters are of geometrical type (screw diameter) and some of functional type (tapping depth). You may scroll a leading parameter (D1 in this case) defining the standard components from the catalogue.
If you key-in for the leading parameter data which exists in the catalogue it will also be recognized and all the standard parameters will be retrieved. You may select a standard component by catalogue number from the Catalogue box.
You may also type in alphanumeric data possibly creating non-standard components.
¾ Close the graphic help by clicking again.
¾ Scroll parameter D1 to 10. This means that we are selecting an M10 standard screw from the catalogue. Watch how the screws preview changes.
¾ Scroll parameter S1 (Screw Length) to 30.
NOTICE that the moment that the screws penetrate the core insert we see their duplication in the preview.
¾ Click (not a mandatory step you could click on the instead)
MoldWorks issues a warning message indicating that the actual screw hole is shorter then the screw and allows the option of:
“Yes” do the correction (i.e. adjust Offset to push the screw further into the plate and the insert).
"As Is" do it as defined.
“Back” to return to the step dialogue box.
¾ Click Back to return to the step dialogue box.
The system goes back to Add Component dialogue box.
Before creating the screws all the component steps i.e. Component Selection, Start Face, Position Selection and Parameter Selection are available for modification.
¾ Click the See Parameters icon . The component graphic help appears.
¾ Select one of the core inserts and click on the Measured Length icon . S1 will automatically jump to 40 which is the correct length of the screw using the screw Thread Depth = 1.5 Screw Diameter (this law can be found in the Rules Options tab under the MoldWorks > Options menu.)
¾ Click the Oversize tab.
The parameters in this tab define the
clearance dimensions for the screw holes. D1
= 1.0 means that the diameter of the hole for the screw will be 1.0 mm larger then the nominal dimension of the screw. D2 = 0.5 means that the diameter of the hole for the screw head will be 0.5 mm larger the nominal diameter of the screw head. You can change the default clearance dimension and click the button to save the new values as defaults for subsequent sessions.
¾ Click in the Add Component dialogue box.
The system creates all the relevant holes encapsulating them in one
FeatureManager folder, with defined clearance dimensions, in Plate3 and in the core insert in one step.
NOTICE the oversize between the component and the hole.
Only one of the screws is displayed (the others are hidden)
MoldWorks Unique User Interface
This type of dialogue display (2 levels of dialogue box) is the typical unique user interface that is employed in MoldWorks. The top dialogue box is displayed throughout the creation process; we call it the control dialogue box. This dialogue box contains the steps needed in order to define the parameters for the specific process (in this case adding the insert to the mold base). It also contains the (Create), (Create and New) and
(Cancel). Clicking one of these icons completes the process.
The second level dialogue box (step dialogue box) is used to input the different data needed to accomplish the process. It always has the
(Continue) icon at the bottom of the dialogue. This icon displays the next step.
During the process all the step dialogue boxes are available through the control dialogue box. This is useful to modify data at any stage before completion of the whole process.
MoldWorks unique user interface thus allows you to modify data at any stage of the creation process without having to retrace steps already performed, while at the same time guiding you through the process.