In [Part 2 of this series], we finished setting the driver for the revolute joint of the indexing mill. Now, we will set up the Punch Die.
Step 1: Setting up the Slider Joint
The movement of the punch die is different from the indexing mill. It moves only in linear motion along the Z-axis. The joint for this kind of movement is called a "Slider" joint.
Procedure:
1. Select Joint command.
2. Select "Slider" joint icon.
3. Select the "Die" link we created earlier.
4. Click "Orientation on the first link" → Select "Point".
5. Select the center point of the cylinder to define the joint origin.
6. Select "Vector" → Click the bottom face of the cylinder (defines the downward Z-axis).
7. Rename to "J_Die".
8. Click Ok.
Step 2: Defining the Linear Driver
1. Right-click joint "J_Die" → Edit.
2. Set Motion Driver to "Constant".
3. Enter Velocity: 50 mm/s (Placeholder value).
4. Click Ok.
Step 3: Running the Animation (Digital Prototyping)
Now we run a preliminary test to ensure the joints are moving correctly.
Settings:
• Time: 1.8 seconds (Cycle time for 2,000 pcs/h).
• Steps: 360 (One step per degree).
Interference Detection: The Crash Test
As expected, because we are using simple "Constant" drivers, the parts collide! This confirms why we need Excel-Driven Motion Profiles to synchronize them perfectly.
Recommended Resources:
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