Key Applications of Laser Distance Sensors in Robotic Arm Assembly

With the rapid development of industrial automation technology, robotic arms have become core equipment in modern manufacturing, widely used in automated production lines, robotics technology, vehicle monitoring, and autonomous driving in intelligent transportation systems. In addition, industries such as medical devices, construction, and engineering are also gradually adopting robotic arms to improve efficiency and quality.

Laser distance sensors can effectively solve this problem. Based on DADISICK's Time-of-Flight (ToF) laser distance sensors, the sensors are installed at an angle above the surrounding area of the material placement zone. The sensors project their laser beams at an angle onto the surface of the material. This allows the sensor to accurately detect the position of objects with different colors in real-time without interfering with the operation of the robotic arm, ensuring a smooth assembly process.

The working principle of the ToF laser distance sensor is based on the time-of-flight measurement technology. The sensor emits a laser beam and detects the return echo. It uses a high-precision timer to measure the time difference between when the laser is emitted and when it is reflected back from the target object. Given that the speed of light is constant, multiplying the time difference by the speed of light gives the distance to the target object.

The laser emitter sends out a laser pulse, which is reflected back after hitting an object. By measuring the time interval between the emission and reception of the laser pulse and multiplying it by the speed of light, the distance to the target can be calculated. The pulsed method is suitable for long-range and large-area measurements.

The emitter sends out continuous modulated waves. By calculating the phase difference between the transmitted wave and the received wave, the distance can be measured accurately. The phase-shift method is more suitable for medium to short-range measurements, typically used for distances ranging from several centimeters to several meters.

During the robotic arm assembly process, laser distance sensors work in conjunction with the control system, creating an efficient positioning and tracking system. The sensors collect real-time material position information and transmit the data to the controller. The controller adjusts the movement trajectory and posture of the robotic arm based on pre-programmed algorithms, ensuring that the end-effector can accurately assemble components in the designated positions.