pcb division mode

pcb circuit board is an important process in mass electronic assembly. In order to improve pcb manufacturing yield and surface adhesion technology (SMT) production line production speed, printed circuit boards are usually designed as one large board, which is divided into many smaller individual pcb boards in the final product using board splitter equipment. This large piece of pcb board can be called a connected board or a piece of PCB board. This large piece of PCB board or a piece of PCB board is cut into smaller pieces in various product processes, most likely after SMT, after an on-line tester (ICT), after solder through hole SMT, or before final product assembly.

1, human work board

Manual division board is mainly divided into manual division board and clipper division board. Manual division board is separated by manual cracking, folding and other actions, while clipper division board is cut with the help of clippers. Manual division board used to be the main division way of PCB division board, but the stress caused by manual division board is too large. It is easy to cause PCB damage. Therefore, with the popularization of the application of board splitting machine, the manual board method has been gradually eliminated.

2, milling cutter type plate

Milling cutter type plate method is suitable for stamp hole PCB board, need to operate with milling cutter type machine, milling cutter is a multi-gear rotary cutter, milling cutter type plate will be cut in accordance with the pre-programmed cutting path to the board, milling cutter type plate can cut straight or circular arc and other arbitrary shape, so it is very suitable for some special-shaped plate, And the effect of the milling cutter section is also very good, with no burr edge, small stress and other advantages; The above is the whole content of PCB sub-board mode, different sub-board mode has different advantages and disadvantages, the specific choice needs to be determined according to the thickness of the board and the way of the board;

3, V-cut board distributor: This method mainly uses the round knife or the V-shaped blade on the V-cut machine to carry out the division operation on the V-slot machine. It only needs to fix the pcb circuit board with the V-slot on the lower knife of the bench of the V-CUT machine of Chuangwei, and then the pcb circuit board can be cut manually, electrically or pneumatic.

4. Punching board splitter: the punching board splitter needs a special punching die to cooperate with the splitter operation. Put the pcb circuit board to be divided on the lower die of the mold to fix the position, start the switch of punching board splitter, and cut the pcb circuit board of a consecutive board into a fixed small pcb circuit board board through the process of punching the die.

5, laser splitter: laser splitter cutting pcb circuit board section flat without burr, no dust, lens and other components without any pollution; No stress, no vibration, no damage to the component; High precision; Defective products not caused by cutting; The overall effect is perfect.

A wide range of pcb substrate materials can be cut by laser splitters, including FR4 substrates and resin-like substrates, polyimides, ceramics, teflon, polyester, aluminum, brass and copper.

Although the laser splitter speed and quality have advantages, can meet customer delivery and quality requirements, but the price of laser splitter is relatively expensive at this stage, usually most manufacturers are using punch splitter or milling cutter type splitter to replace.