Bending Robot: Working Principles and Development History

The bending robot is a modern production tool widely used in various industrial fields, especially in sheet metal processing. It performs bending operations with high precision and efficiency, greatly improving production efficiency and reducing labor costs. In this article, we will delve into the working principles and development history of bending robots.


Working Principles of Bending Robots

Bending robots are designed based on the principle of coordinate geometry. They use a robotic arm to position a bending mold or tool at different angles and positions relative to the workpiece. The robotic arm is mounted on a fixed frame or gantry, allowing it to move freely along X, Y, and Z axes. The bending mold or tool attached to the end of the robotic arm can then be inserted into the clamping device of the workpiece to perform bending operations.

The bending robot typically includes a controller, which sends commands to the robotic arm to control its movements. The controller can be programmed to perform specific bending sequences based on the geometry of the workpiece and the desired bending angle. The robotic arm follows these commands to position the bending tool accurately, ensuring repeatable and accurate bending results.


Development History of Bending Robots

The development of bending robots can be traced back to the 1970s, when the first bending machines were introduced. These machines were manually operated and could only perform simple bending operations on sheet metal. As technology advanced, bending robots became more automated and were able to perform more complex bending operations.

In the 1980s, companies began to develop bending robots with greater precision and repeatability. These robots were able to bend sheet metal into more complex shapes and dimensions with high accuracy. The development of numerical control technology also allowed bending robots to be easily integrated into production lines, enabling seamless automation of sheet metal processing operations.

In the 1990s, bending robots entered a new era with the development of intelligent control technology. These robots were able to communicate with other production machines and perform tasks based on real-time feedback data from sensors mounted on the bending tool or workpiece. This technology allowed for more precise control of bending operations and greater flexibility in production processes.

In the 2000s, bending robots entered a new phase with the development of mechatronics technology. These robots combine mechanical, electronic, and information technologies to achieve greater precision, speed, and efficiency in bending operations. They also feature advanced sensors and monitoring systems that can detect any errors or abnormalities during production and adjust accordingly to ensure high-quality production results.

In recent years, with the development of artificial intelligence and machine learning technologies, bending robots have become more intelligent and autonomous. These robots can learn from past production data to optimize bending sequences and improve production efficiency. They are also able to self-diagnose any potential issues during operation and take corrective measures to ensure uninterrupted production operations.


The development of bending robots has followed a trajectory of continuous innovation and technological advancement. With each passing decade, these robots have become more accurate, efficient, and flexible in their operation. The future holds promise for even greater technological advancements in bending robots, as artificial intelligence, machine learning, and other advanced technologies continue to shape their development.

Post time: Oct-11-2023