igus Expands ReBel Cobot Capabilities With Newly Developed Bionic Hand

Well-known manufacturer of motion plastics igus has launched a flexible humanoid hand gripper that easily integrates with any of its ReBel collaborative robot models. The ReBel bionic hand introduces a new level of adaptability, changing how robots interact with their environment.

Depiction of ReBel finger gripper shaking hands with a human hand. Image used courtesy of igus

igus ReBel Finger Gripper

The ReBeL finger gripper is the latest addition to the ReBeL cobot product line at igus, designed to elevate ReBel cobot capabilities.

According to Alexander Mühlens, the Head of the Low Cost Automation Business Unit at igus, numerous ReBel customers have expressed interest in a robotic hand, recognizing its potential to enhance the efficiency of tasks typically performed by cobots. The ReBel finger gripper responds to customer demands for a plug-and-play solution, easily connecting to the ReBeL via digital input/output for efficient control at the tool center point.

Notably, the gripper stands out with its unique ability to imitate human hand movements, enhancing its versatility in research, catering, and entertainment applications. Precision movements are achieved through high-performance plastics and rigorous testing. Control is possible through various interfaces, including USB, TTL (5V) serial, and internal scripting.

The ReBel finger gripper is designed with high-performance plastics for cost-effective precision. Image used courtesy of igus

High-performance Plastics

The ReBel finger gripper is designed to have an extended service life, ensuring prolonged and reliable performance. The gripper is crafted from self-lubricating plastics and bearings produced with iglidur polymers to ensure cost-effectiveness and ease of maintenance.

The high-performing plastics eliminate the need for extra lubrication while providing respectable flexibility. Remarkably lightweight, these components weigh up to 70% less than their metal counterparts. Additionally, igus high-performance plastics showcase resilience, providing resistance to dirt, chemicals, and corrosion and the ability to withstand hot and cold temperatures.

igus Humanoid Hand Specs 

Designed to meet safety standards, the bionic hand holds certifications for collaborative robot compatibility and adherence to industry-specific regulations.

Nevertheless, constraints are imposed by the payload capabilities and gripping force. The humanoid hand is limited to a payload rating of 0.5 kg and 18 N per finger in gripping force. This lower payload rating and gripping force restrict the gripper’s suitability for applications involving medium to heavy-sized components.

The ReBel finger gripper does, however, prove advantageous for small workpiece applications. Equipped with advanced sensors and servo motors, the bionic hand provides real-time feedback to the robot's controller, ensuring precise and adaptive control.

Overview of a simple control schematic for the ReBel finger gripper. Image used courtesy of igus

Cost-effective Robotics

With its affordable price point and adaptability, the ReBeL finger gripper from igus is a sophisticated solution, reinforcing the company's commitment to advancing collaborative robotics. Small to medium-sized businesses can incorporate ReBel collaborative robots in their process for a bargain price. 

The igus manufacturing process makes robotics a more attainable option, with the modest starting cost of $5,269.00 with the ReBel cobot 4 DoF. With the ReBel finger gripper priced at $2,760, the overall cost of entering the world of robotics falls just below $10,000, presenting a compelling and potentially lucrative investment.

Human-like Finesse

With a commitment to pushing the boundaries of robotic capabilities, the bionic gripper from igus sets a new standard for human-robot collaboration. Its advanced features and low cost make it an asset for industries seeking to enhance automation with a touch of human-like finesse.