一.Working Principle：
Mechanical structure and function: Automatic placement machine is a highly automated, high-speed, high-precision equipment, mainly composed of a rack, feeder, placement head, PCB positioning device, component centering device and computer control system. Its workflow includes substrate positioning, component feeding, component picking, component positioning and placement. Automatic placement of electronic components is achieved through components such as mechanical arms, suction cups, and placement heads.
Alignment technology: There are three ways to align components: mechanical alignment, laser alignment, and visual alignment to ensure that components are accurately mounted on PCB boards. These alignment technologies use high-precision image processing technology and advanced mechanical control systems to achieve precise component placement.
Computer Control：All operations of the placement machine are completed by the computer, including suction, displacement, positioning and placement. The computer control system transmits power through the ball screw, and the rolling linear guide motion pair realizes directional movement, ensuring the placement position accuracy of each component.
二.Impact on welding quality：
Improve welding quality: The automatic placement machine achieves high-precision placement effects through high-precision mechanical and optical means, thereby improving the welding quality. Its production process is consistent and accurate, and the product reliability and quality are higher.
Reduce human error: The use of automatic placement machines reduces errors caused by human operation and avoids quality problems caused by technical level and environmental factors in manual welding. It has a high degree of automation and can process multiple components at the same time, improving production efficiency.
Process parameter optimization: Process parameters such as mounting speed, solder paste thickness and mounting pressure are crucial to processing quality. According to different PCB and component characteristics, optimizing process parameters and verifying them can further improve welding quality.
The automatic placement machine significantly improves the welding quality, reduces human errors and improves production efficiency through its highly automated and high-precision mechanical and optical systems in SMT placement technology.
