Quick Change Device (QCD) is a key component used in industrial automation for the quick replacement of different tools (such as fixtures, suction cups, welding guns, sensors, etc.) at the end of a robotic arm. It achieves rapid connection and separation between tools and robotic arms through standardized interfaces, significantly improving the flexibility and efficiency of the production line.
Basic components:
Master Side: Fixed at the end of the robotic arm, providing power (gas/electric/hydraulic) and signal interfaces.
Tool Side: Installed on the tool end, connected to the main disk, receiving power and transmitting operation instructions.
Locking mechanism: Rapid locking/releasing is achieved through pneumatic, hydraulic, or electric drive.
Security protection: self-locking device, redundant locking or sensor detection to prevent accidental detachment.
working principle:
Docking and locking: The robotic arm aligns the main disc with the tool disc and physically connects it through pneumatic, hydraulic, or motor-driven locking mechanisms.
Media transmission: Automatically connect air, electrical, or liquid circuits to ensure the normal operation of the tool.
Signal communication: Integrated electrical contacts or wireless communication to transmit control signals and status feedback.
Separation process: After unlocking, the robotic arm moves away from the main disk, leaving the tool disk at the workstation, ready for the next call.
Core advantages:
Efficiency improvement: Tool replacement time has been reduced from minutes to seconds, reducing downtime.
Flexible production: supports multiple varieties and small batch production to meet the needs of flexible manufacturing.
Cost reduction: One robotic arm can reuse multiple tools, reducing equipment investment.
Standardized interface: compatible with tools from different brands, simplifying integration and maintenance.
Scenario application:
Automobile manufacturing: switch welding guns, glue guns, grippers, etc.
Logistics warehousing: Replace suction cups and clamps to adapt to different packaging forms.
3C Electronics: Switching between screwdrivers and dispensing heads in precision assembly.
Metal processing: Quickly replace grinding heads and polishing wheels.
Selection parameters:
Load capacity: Static/dynamic loads need to be matched with tool weight and working torque.
Media type: gas path (pressure/flow), circuit (voltage/current), communication protocol.
Accuracy requirement: Repetitive positioning accuracy (usually within ± 0.015mm).
Environmental adaptability: high temperature resistance, dustproof, waterproof rating (such as IP67).
Security: Double locking, accidental power-off protection, and detachment detection.