SMT placement machine, generally speaking, is the most critical equipment in SMT. It is a device for mounting electronic components. How does it work?
1. Introduction to the working principle of the placement machine
A pick and place machine, also known as a "surface mount system", is a piece of equipment that precisely places surface mount components on PCB pads by moving the mounting head after a dispenser or screen printer. It is a device used to achieve high-speed, high-precision placement of components, and is the most critical and complex device in the entire SMT production.
2. The working principle of the placement machine - structure and function
At present, there are many varieties of placement machines on the market, but whether it is an automatic high-speed placement machine or a manual low-speed placement machine, it is composed of a rack, PCB transmission and bearing organization, drive system, positioning and alignment system, feeder, High-tech equipment composed of optical recognition system, sensor and computer control system.
Briefly describe its functions:
Frame - The base of the machine, to which all drives, positioning mechanisms and feeders are firmly fixed, must therefore be mechanically strong and rigid.
Transmission and carrying mechanism of PCB——The transmission mechanism is placed on the guide rail of the ultra-thin belt conveyor system, and its function is to transport the PCB to the reserved position, carry out placement, and then transport it to the next process equipment.
Drive System - It is the key to the placement machine, and it is also an indicator of the accuracy of the placement machine, which includes the XYZ drive layout and servo system, including support for the movement of the head and support for the load bearing.
3. The working principle of the placement machine:
The substrate is fixed, and the placement head and substrate in the feeder are moved back and forth from the feeder between component selections, then adjusted by the position and orientation of the components, and finally placed on the substrate.
Advantages: High precision can be achieved, suitable for parts of most sizes, shapes, and even special-shaped parts, in the form of feeding belts, tubes, trays. It is suitable for mass production and can also be used for mass production with multiple machines.
Baiqiancheng has been focusing on the management and control of the production process, strictly controlling each link of production, and ensuring that the test is correct before shipping to customers. Baiqiancheng pays great attention to the quality of PCBA production. For the SMT link, Baiqiancheng has professional placement machine equipment to ensure the efficiency of the production.
