SMT processing programming basic steps

The main information required for SMT processing programming:

1.Basic information of PCB board: length，width and thickness of PCB board.

2.Mark point basic information, optical mark point coordinate parameters on the PCB

3. PCB board panel information, how many boards on the panel

4.SMT components location information, including components bit number, coordinates, angle, etc. The client will provide the corresponding BOM list, SMT bit number drawings, templates, etc.

SMT processing programming steps:

It is divided into two stages, one is offline preparation work. The second is online debugging. Each factory has different specific details depending on the model and management mode of the SMT machine. Take the general process as an example.

The offline preparation is as follows:

1. First sort out the BOM list provided by the customer. The programming needs to be done on the computer, so it is best to provide the electronic file. Generally in excel format

Extraction of coordinates. According to the three documents provided by the customer:

(1) If the customer sends the coordinates of the exported excel or txt document, then directly use the programming software to merge the coordinates with your compiled BOM list.

The customer sent the PCB file, then you need to export the coordinates yourself. Generally, you can use the protel99 or PADS2007 to export the excel format.

The customer only provides a BOM, which can not provide the coordinates. At this time, the scanner is needed. The PCB is scanned and saved to CAD format, and then the coordinates are combined with the BOM.

3. Check whether there is any omission or relocation after the BOM and coordinate synthesis. If necessary, the engineering department needs to contact the customer to confirm, and save it to the format required by the machine after OK.

These three steps, offline programming is almost complete.

Online debugging:

1. Import the programmed program into the smt machine.

Find the origin and make a mark.

Gradually correct the position coordinates.

Optimize,save program and check the component orientation and data again.

5. Start the machine and confirm the first piece of the board.