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Electric Gripper Worm Drive Shaft Automotive Engine Block Handling Application Case
2025-09-02
Case Background
An automotive parts manufacturer specializing in engine block production faced low efficiency and errors with manual handling. To improve productivity and safety, the company introduced an industrial robot automation line, utilizing a two-finger gripper equipped with an electric gripper worm drive shaft for engine block handling.
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Process Description
- Workpiece Positioning: The engine block (weight ~25kg) is conveyed to a fixed station, where a vision system identifies its position and orientation.
- Gripper Control: Upon receiving positioning data, the robot moves above the block. The worm drive shaft converts the servo motor's rotary motion into precise linear movement, closing the two-finger gripper.
- Adaptive Gripping: The high torque output of the shaft ensures sufficient gripping force (adjusted to 200N), while the force control system monitors in real time to prevent surface damage.
- Handling and Placement: After gripping, the robot transports the block to a machining center. The shaft's ±0.02mm repeatability guarantees accurate placement into the chuck.
- Cyclic Operation: The process cycle time is 12 seconds, with the worm drive shaft supporting 24/7 continuous operation.
Results and Value
- Efficiency Improvement: Automated handling increased production efficiency by 40% and reduced cycle time.
- Quality Assurance: High-precision transmission prevented scratches and dents, reducing the product defect rate to below 0.3%.
- Cost Reduction: Labor costs decreased by 25% due to reduced manual intervention, and the shaft's 8,000-hour lifespan lowered maintenance costs.
- Enhanced Safety: Employees were removed from heavy workpiece handling, significantly reducing injury risks.
