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CAD-CAM-CAE Példatár
example title: Multi-axis component modelling(CAD)
example number: ÓE-A07
example level: basic - medium - advanced
CAx system: CATIA V5
Related material part with TÁMOP CAD
Job Description: Create Cad model of a Multi-axis component in CATIA v5.
1. The task
Create a CAD model in CATIA v5 from the figure!
2. The solution steps
Start the Part Design modul in CATIA: StartMechanical DesignPart Design Write a name in new Part window then pres OK button.
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mutually perpendicular plane (xy, yz, zx). Insert a coordinates system in the planes.
InsertAxis System
We create a standard and right-handed coordinates system.
Now we have a coordinates system. Select the three main planes and hide with Hide/Show command.
Select the XY plane so that we click between the X axis and Y axis then click to the Sketch icon.
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Click to the Circle icon in the sidebar then click to the centre of the coordinates system. We draw a circle.
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Click to the Constraint icon then click to the circle and anywhere. Double-click on the dimension text and write the exact size. Now it is 40mm.the circle colour is green. When you are finished you can click to exit Workbench icon.
You click the Pad command and set the 36 thickness of the build one body element then pres OK button.
Select the XY plane so that we click between the X axis and Y axis then click to the Sketch icon.
Click to the Circle icon in the sidebar then click to the centre of the coordinates system. We draw a circle. Repeat this process. Center of the circle locate on the same line. Both circle diameter is 24 mm.
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The two circle each other and the previously drawn circle distance is the distance of their centre. After clicking on the Constraint icon to click to select the origin, then click to the centre point of closer circle. this method will do the other sizes. When you are finished you can click to exit Workbench icon.
You click the Pad command and set the 28 thickness of the build one body element then pres OK button.
Now create the third sketch on XY plane. Select the two outer cylinders while Hold CTRL button down. Click to the Project 3D element icon. Now click to the background. The circles are yellow.
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Click to the Line icon to draw a line. Draw a line between the two circles. See the picture.
Click on the Constraint icon and click to the line and one of them circle. Then click right mouse button. A new menu is opened. Here select the Tangency.
The operation is repeated in between the middle cylinder and the line.
Then draw another line and create same tangency constrain but it is the other side of circles.
Next step is to click on the Quick Trim Icon, and one in yellow outer half of the projected contour. This contour is repeated per second. Click on the Exit icon to exit the workbench erasures.
Select the profile if not already selected and click Pad . As you prefer to create a larger pad, enter 12 mm in the Length field. Click OK.
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Click Plane . The Plane Definition dialog box appears. Select the Offset from plane plane type. Enter 15 mm in the Offset field. Click OK.
Select choose the completed plane then click on the Sketch icon. Select the line of centre cylinder. Click to the Project 3D element icon. Now click to the background. The circles are yellow.
Click to the Line icon to draw a line. Draw the lines from circle to circle. See the picture.
Click Constraint in the Constraints toolbar. Click in the geometry to create the constraint.
Click Quick Trim. Select yellow circle as the element you wish to be broken. Click Exit workbench to exit the Sketcher.
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Select Sketch.1 as the profile to be extruded then click Pad command. Enter 9mm in the Length field of First limit to increase the length value. Click the More button to display the whole dialog box. Enter 9 in the Length field of Second Limit to increase the length value.
Click OK to confirm the creation.
Click Edge Fillet in the Dress-Up Features toolbar (Fillets sub-toolbar).The Edge Fillet Definition dialog box appears. Select the edge as shown. The edge selected then appears in the Object(s) to fillet field. Enter 9 mm in the Radius field to increase the radius value .The application displays the radius value. Clicking Preview previews the fillet to be created.
Click OK. The edges are filleted.
Click Hole to create a hole in Part Design. Select the circular edge and upper face as shown.
The application can now define one distance constraint to position the hole to be created. The hole will be concentric to the circular edge. The Hole Definition dialog box appears and the application previews the hole to be created. The Sketcher grid is displayed to help you create the hole.
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By default, the application previews a blind hole whose diameter is 10mm and depth 10mm.
Choose to specify the bottom limit. Here is good the Up to Next way.
Clicking opens the Sketcher workbench. You can then constrain the point defining the hole position. Once you have quit the Sketcher, the Hole Definition dialog box reappears to let you define the hole feature.
You can also define a threaded hole by clicking the Thread Definition tab and selecting the Threaded button to access the parameters you need to define. Select the support Depth parameter in the Bottom Type field. Select the Metric thick pitch parameter in Thread Definition Type field. Select the M8 parameter in the Thread Description field. Check the Right-threaded settings.
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Similarly, we make the central threaded bore of the cylindrical part is preparing. Select the middle part of the upper face of the cylinder, then click on the Hole icon. Set the Up to Next parameters in the extension tab.
Clicking opens the Sketcher workbench. You can then constrain the point defining the hole position. Once you have quit the Sketcher, the Hole Definition dialog box reappears to let you define the hole feature.
Click the Type tab to access the type of hole you wish to create. You are going to create a countersunk hole. If you choose to create that hole type, the countersink diameter must be greater than the hole diameter and the countersink angle must be greater than 0 and less than 180 degrees. Set the Angle & Diameter parameters in the Mode field. You will notice that the image assists you in defining the desired hole. Enter 1mm in the Depth field. Enter 90deg in the Angle field. The preview lets you see the new angle and new depth.
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You can also define a threaded hole by clicking the Thread Definition tab and selecting the Threaded button to access the parameters you need to define. Select the Dimension parameter in the Bottom Type field. Select the Metric thick pitch parameter in Thread Definition Type field. Select the M12 parameter in the Thread Description field. Enter 13mm value in the Thread Depth field. Check the Right-threaded settings. Click OK. The threaded hole is created.
The smaller outer cylindrical hole is made in the Hole command. Clicking opens the Sketcher workbench in Extension tab of Hole command. You can then constrain the point defining the hole position. Once you have quit the Sketcher, the Hole Definition dialog box reappears to let you define the hole feature.
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Set the Up to Next parameters in the extension tab. Enter 12 mm value in the Diameter field.
Click OK to confirm the creation.
Select the larger outer upper face surface of the cylinder, then click on the Sketch icon.
Create a Circle then use the Constraint command. Enter 22mm value in the Diameter field of Constraint Definition panel. Click Exit workbench to exit the Sketcher.
Select the larger outer downer face surface of the cylinder, then click on the Sketch icon.
Create a Circle then use the Constraint command. Enter 16mm value in the Diameter field of Constraint Definition dialog box. Click Exit workbench to exit the Sketcher.
Click Removed Multi-sections Solid. The Removed Multi-sections Solid Definition dialog box appears. Select both section curves as shown Sketch.10 and Sketch.11:
They are highlighted in the geometry area. Click Closing Point 2 arrow to reverse the direction.
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Click OK to create the removed multi-sections solid.
The model is completed. You can display and filter out information about threads and taps contained in a CATPart document. Click the Tap/Thread Analysis icon. The dialog box also displays the total number of threads and taps contained in your document. Click Apply to display the representations and the values of the threads and tap contained in the document.
The representations and the values (diameter x depth x pitch) are displayed in orange and yellow respectively.
