The principle of Borey Advanced SMT mounting machine

2023-11-13


 

1. Introduction to the working principle of the SMT machine

SMT machine, also known as "surface mount system", is a device configured after a dispensing machine or screen printing machine to accurately place surface mount components on PCB pads by moving the mounting head. It is a device used to achieve high-speed and high-precision placement of components, and is the most critical and complex equipment in the entire SMT production.

2. Working principle - structure and function of the SMT machine

At present, there are many types of SMT machines on the market, but whether it is an automatic high-speed SMT machine or a manual low-speed SMT machine, it is a high-tech device composed of a rack, PCB transmission and bearing organization, driving system, positioning and alignment system, feeder, optical recognition system, sensor, and computer control system.

Briefly introduce its functions:

The frame - the foundation of the machine, all drives, positioning mechanisms, and feeders are firmly fixed on it, therefore it must meet the mechanical strength and rigidity.

The transmission and carrying mechanism of the PCB - The transmission mechanism is placed on the guide rail of the ultra-thin belt conveyor system, which is used to transport the PCB to a reserved position for lamination, and then transmit it to the next process equipment.

Drive system - It is the key to the SMT machine and also an indicator for evaluating the accuracy of the SMT machine, including the XYZ driver layout and servo system, including support for magnetic head movement and support for load bearings.

3. Working principle of the SMT machine:

The substrate is fixed, and the mounting head and substrate in the feeder move back and forth from the feeder between component selection, then adjust the position and direction of the components, and finally place them on the substrate.

Advantages: It can achieve high precision and is suitable for most sizes, shapes, and even irregular parts, through the form of feeding belts, pipes, and pallets. Suitable for mass production and can also be used for mass production with multiple machines.