PLC And HMI Robotic Stamping Line Sync Control High Throughput
Price:
Negotiable
MOQ:
1
Delivery Time:
60 days
Brand:
Qicheng
Product Description
Robotic Stamping Line Sync Control
The Architecture of Robotic Sync Control
1. Deterministic Communication (The Backbone)
To achieve synchronization, the Press PLC and the Robot Controller must share data with sub-millisecond latency. We utilize high-speed industrial Ethernet protocols to transmit the Absolute Encoder position of the press crankshaft directly to the robot's motion engine.
- Profinet IRT (Isochronous Real-Time): Ensuring jitter-free data exchange.
- EtherCAT: Providing the fastest "on-the-fly" processing for high-SPM lines.
- EtherNet/IP with CIP Sync: Standard for many North American automotive Tier-1 plants.
2. Electronic Camming (E-Cam) & Follow-Up
Instead of waiting for a "Press at Top" digital signal, the robot is programmed as a Slave Axis to the press's Master Axis.
- Dynamic Entry: As the press slide passes 270° (ascending), the robot calculates its acceleration curve to reach the pick point exactly when the die is clear.
- Continuous Path Tracking: If the press speed fluctuates (e.g., due to motor load or operator adjustment), the robot automatically scales its velocity to match, maintaining a constant safety gap.
Technical Specification Matrix
Performance benchmarks for synchronized stamping.
| Feature | Specification | Operational Impact |
|---|---|---|
| Sync Latency | < 2 ms | Allows for tighter "overlap" between press and robot |
| Encoder Resolution | 13-bit to 17-bit Absolute | High-fidelity tracking of the press slide position |
| SPM Capability | 12 - 18 Strokes Per Minute | Typical for 6-axis robotic tandem lines |
| Interference Window | Configurable (1° increments) | Maximum safety with minimum "dead time" |
| Safety Protocol | PROFIsafe / CIP Safety | Integrated Estop and Speed Monitoring |
| Motion Profile | S-Curve / Jerk-Limited | Protects robot gears and prevents part slippage |
Core Application Scenarios
- Tandem Line "Overlap" Control: Coordinating 5+ robots across a line where the exit move of Robot A must synchronize with the entry move of Robot B into the same press.
- Servo-Press Integration: Leveraging the variable speed of servo presses to allow the robot more time for complex part orientation without stopping the crank.
- On-the-Fly Centering: Using vision data to adjust the robot's "Place" coordinates while it is already in motion toward the press, ensuring ±0.5 mm accuracy.
Technical FAQ: Mastering Synchronized Flow
Q1: What happens if the press performs an Emergency Stop (E-Stop)?
A: The Sync Control system utilizes Path-Safe Retraction. Because the robot "knows" its position relative to the press angle, it doesn't just stop; it executes a controlled move to a "Safe Zone" if the momentum allows, or it triggers a Category 1 stop to freeze both machines simultaneously, preventing a mid-die collision.
Q2: How is "Ghosting" or signal lag compensated?
A: We implement Predictive Position Algorithms. The robot controller looks at the current velocity and acceleration of the press and "projects" where the press will be 10 milliseconds in the future. This compensates for any network jitter and ensures the robot's physical position always matches the logical safety window.
Q3: Can this be retrofitted to older mechanical presses?
A: Yes. We install a high-resolution External Absolute Encoder on the main crankshaft and bridge the signal to the robot controller via a Gateway (e.g., Anybus or specialized Safety PLC). This grants an older "dumb" press the intelligence required for modern robotic synchronization.
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Company
Zhejiang SAS Intelligent Technology Co.,Ltd.
Location
No. 1668, Yedao Road, Haiyan Economic Development Zone, Jiaxing City, Zhejiang Province, China
Contact Person
Mike