Borey Advanced - How to Choose Domestic SMT Mounter?

2023-12-12


 

 

1、 Comprehensive parameters of domestic SMT mounting machines

When choosing a domestically produced SMT mounting machine, you should first look at its comprehensive supermarket. We can determine its preliminary performance through a simple method; Firstly, check whether the overall structure is suitable for mechanical design mechanics standards and whether the mechanical structure foundation is solid and reliable. Specifically, check whether the XY axis beam has mechanical support, whether there is a motion bottom plate platform supporting the XY axis, and whether the platform thickness has sufficient retention force to ensure that the platform does not deform; Whether the specifications of key transmission components such as guide rails and screw rods (diameter, lead, etc.) are selected reasonably, whether they have true accuracy requirements, whether their lifespan is guaranteed, and whether the quality of core components in electrical accessory materials is guaranteed; Whether the operating system frequently crashes during the trial operation or installation process, and whether some hardware parts of the device may malfunction or malfunction, etc.

2、 The accuracy of domestic SMT mounting machines

The accuracy of the SMT SMT mounting machine is the most important parameter. Verify it one by one based on the technical parameters provided by the manufacturer. For example, if the minimum value is 0201, we will attach the 0201 device and randomly program the mounting machine to see if it can absorb and accurately attach all the materials. This is based on 100 pieces of material. After successfully calibrating the first board of the program, turn on the automatic mode of the equipment, Use two or more identical PCB boards to enter the machine one by one for automatic mounting, repeat more than 10 times, and check if the mounting results are consistent and if each one can meet the expected accuracy requirements. This makes it easy to verify whether it can be installed as the parameters say, and if it cannot be properly installed, there is no need to verify that there is basically moisture in other parameters.

Another most effective way is to verify the installation accuracy and repeated installation accuracy of the chip. Manufacturers claim to be able to install chips with a spacing of 0.3mm (this should be noted that 0.3 refers to the center distance between adjacent pins rather than the pin spacing, which is important). The verification of the chip is best for chips with a spacing of 20mm or more, or chips with a spacing of 100 pins or more. After successfully calibrating the first board of the program, the device should be turned on automatic mode, Use two or more identical PCB boards to enter the machine one by one for automatic mounting, repeat more than 10 times, and check if the mounting results are consistent and if each one can meet the expected accuracy requirements. If all the boards posted can be explained to have good accuracy, then trust your eyes. What you see is the fact, which is the highest accuracy of the equipment. Any reason given by the manufacturer is an excuse.

3、 The efficiency of domestic SMT mounting machine for mounting

The installation efficiency of SMT machines has always been the biggest point of misunderstanding between manufacturers and users, and how to verify it is actually quite simple. The maximum speed provided by the manufacturer is generally difficult to achieve, and that is only the speed measured in an unrealistic environment. Most manufacturers have not tested it at all and just casually explain it out of thin air.

What we are most concerned about is the overall speed. This speed verification is very simple. Most components on the PCB board are mainly based on resistance and capacitance. So, we will conduct a simple test using resistance and capacitance mounting, randomly editing a mounting