Removable Protective Cap for Robot Arm Parts

This patent describes a cap designed to be easily attached and removed from a robot arm element, using a clever system of interlocking shapes and a flexible part to hold it securely.

What it covers

The patent describes a cap that can be quickly connected to and disconnected from a specific part of a robot arm. This cap attaches to the outer surface of a robot arm element, which has a housing with both an outer and inner surface. The connection works by fitting an 'upper cavity' on the cap over an 'upper protrusion' on the arm, and at least one 'first lower cavity' on the cap over a 'first lower protrusion' on the arm. Once these parts are aligned, a 'flexible suspension element' locks the protrusions into their cavities, keeping the cap firmly in place. For example, this cap could cover a sensitive sensor or a joint on an industrial robot arm, protecting it from dust or impacts while allowing for easy removal when maintenance is needed.

What it doesn't cover

• —Does not cover caps that are permanently attached, such as by welding or strong adhesives.
• —Does not cover caps that require tools like screws, bolts, or clips for attachment and removal.
• —Does not cover caps that use magnetic forces or simple friction to stay connected.
• —Does not cover caps designed for non-robot arm applications, like covers for static machinery.
• —Does not cover caps that integrate active electronic components, beyond their specific attachment mechanism.

The clever bit

The clever part is the specific combination of cavities and protrusions, secured by a flexible suspension element. This allows for a strong, engaged connection that is also easily reversible without needing tools, balancing security with convenience.

Why it matters

This type of removable cap design is important for the practical use of robots in industrial settings. It allows robot components to be protected from environmental factors like dust or debris, which can extend the lifespan of the machinery. The easy-to-remove design also simplifies maintenance and repair, reducing the time robots are out of service and improving overall operational efficiency.

Real-world examples

• 1.Protective covers for robot arm joints in manufacturing plants
• 2.Caps for sensor modules mounted on robotic manipulators
• 3.Dust covers for end-effector connections on industrial robots
• 4.Aesthetic covers for exposed wiring or components on collaborative robots