In today's era of rapid development in intelligent manufacturing and automation technology, industrial robots, as the core equipment of modern manufacturing, are widely used in various fields such as automobiles, electronics, healthcare, and logistics. Within these highly precise robot systems, seemingly insignificant screws play an indispensable role. They not only perform the basic functions of structural connection and fixation, but also play a significant role in ensuring the high precision movement and stable operation of the robots.
1. High Requirements for Connecting Components in Industrial Robots
Industrial robots are typically composed of multiple joints and moving parts, with complex structures and frequent movements. They have extremely high requirements for the strength, precision, and durability of connecting components. Traditional connection methods often encounter risks such as loosening and fatigue fracture when facing high-frequency vibration, dynamic loads, and complex working conditions. Therefore, screws, as indispensable fasteners in industrial robots, their material selection, design, and application methods directly affect the performance and reliability of the entire machine.
2. Core Application Scenarios of Screws in Industrial Robots
Joint and Reducer Connection
Screws at the joints of industrial robots are used to fix key components such as reducers and servo motors. These screws need to have high strength, high fatigue resistance to cope with the stress changes brought by frequent start-stop and high torque output.
Structural Component Fixation of the Mechanical Arm
The connection parts of the mechanical arm are widely fixed with lightweight but high-strength screws to ensure the overall structure is stable, lightweight, and less prone to deformation.
Installation of Sensors and Circuit Boards
In the end effector or control box of the robot, a large number of screws are used to fix electronic components such as sensors and circuit boards to ensure stable signal transmission and reliable equipment operation.
Fixation of Safety Guard Covers and Shell
To ensure operational safety and equipment protection，safety guard covers and shells of robots are widely fixed with anti-loosening and corrosion-resistant screws， adapting to dusty and humid complex industrial environments.
3. Key Performance Requirements of Industrial Robot Screws
High Strength and Fatigue Resistance：Screws in industrial robots need to have excellent tensile and shear resistance to prevent failures caused by fatigue fractures.
Anti-loosening Design：Self-locking screws，nylon inserts，double nuts，etc. are adopted to prevent loosening due to vibration.
Lightweight and Corrosion Resistance：While meeting strength requirements，screw materials tend to be titanium alloys，stainless steel，high-strength engineering plastics，etc.，which are lightweight and corrosion-resistant.
High Precision Manufacturing：Ensure precise fit between screws and connection holes to avoid errors accumulated affecting the overall assembly accuracy of the robot.
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