Device for Automated Production of Screw Connections

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This invention describes a device for the automated creation of screw connections using an articulated-arm robot equipped with a specialized screwing unit. The screwing unit can rotate via the robot's end effector and features an internal mechanism for feeding screws, positioning the tool, and automatically applying screws to target objects. It enables both the delivery and securing of screws in an efficient, automated fashion, reducing the need for manual intervention and eliminating the need for a separate, dedicated screwing motor.

Use CasesContent extracted from patent full text and abstract with AI.

• Automated assembly lines in manufacturing, such as automotive or electronics production, where repeated and precise screw fastening is required.
• Integration into industrial robots for building furniture, machinery, or appliances that consist of multiple screw connections.
• Quality-critical environments where consistent torque and screw placement are necessary for safety or durability, such as aerospace or medical equipment production.
• Flexible assembly stations that require quick adaptation to different screw types or products without major hardware changes.
• Automating maintenance or repair tasks involving extensive screwing operations, such as panel installation or equipment servicing.

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces manual labor and increases production automation, boosting efficiency and lowering labor costs.
• Improves the precision and consistency of screw fastening, enhancing product quality and reliability.
• Eliminates the need for an additional screwing motor by using the robot’s existing actuators, reducing weight and equipment costs.
• Allows for fully automated screw feeding and positioning, increasing speed and throughput of assembly operations.
• Flexible design allows use with standard articulated-arm robots and adapts to different screw sizes and products.
• Enhanced integration of process monitoring (e.g., torque or force sensors) for quality control during operation.
• Lightweight and robust solution thanks to integrated pneumatic or electromagnetic mechanisms for tool movement.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a device (100) for automatically producing screw connections, comprising an articulated arm robot (1) and a screwing unit (2) which can be rotated about an effector axis (wE) by an output element (11) of an end element (12) of the articulated arm robot (1). According to the invention, the screwing unit (2) has a housing (21), a screwing tool (22) is movably received in the housing (21) along the effector axis (wE) between a feed position and at least one screwing position, and a mouthpiece (23) for providing a screw (S) is arranged on the housing (21).