Machine performance testing method and device

A machine performance testing method, comprising:

• acquiring a test sample from a machine to be tested, using a transparent panel;
• the test sample including at least one object placed on the transparent panel by the machine to be tested;
• scanning the transparent panel to obtain image data;
• and
• determining operation accuracy of the machine to be tested according to the image data.

A machine performance testing method for testing a placement machine for assembly accuracy, said testing method comprising:

• acquiring a test sample from the placement machine using a transparent panel on which a layer of glue is sprayed, the transparent panel is placed into the placement machine, and at least one assembly is placed on the transparent panel by the placement machine;
• scanning the transparent panel to obtain image data;
• simulating an image of the transparent panel according to the image data;
• determining an offset between an actual position and a respective ideal position of each assembly in the test sample currently acquired on the transparent panel;
• counting statistically at least one of offsets of at least a part of assemblies in the test sample currently acquired and the offsets of at least a part of the assemblies in a plurality of test samples already acquired;
• and
• computing the assembly accuracy of the placement machine based on said counting.

A machine performance testing method for testing an offset of a printer;

• said testing method comprising:
• during an initial stage, acquiring a first test sample from the printer using a transparent panel by
• placing the transparent panel the printer,
• printing a solder paste or glue on the transparent panel using a template suitable for the transparent panel,
• scanning the transparent panel to obtain first image data;
• obtaining a first simulated image of the transparent panel based on the first image data,
• determining an initial offset between an actual position and a respective ideal position of the solder paste or glue at each place printed on the transparent panel according to the first simulated image, and
• recording the initial offset;
• and
• after a period of time, acquiring a second test sample from the printer using the transparent panel by
• scanning the transparent panel to obtain second image data,
• obtaining a second simulated image of the transparent panel according to the second image data, and
• determining a subsequent offset between the actual position and the respective ideal position of the solder paste or glue printed at each place on the transparent panel according to the second simulated image;
• and
• comparing the subsequent offset with the initial offset to obtain a current offset of the printer during this period of time.

A machine performance testing method for testing printing accuracy of a printer;

• said testing method comprising:
• acquiring a test sample from the printer using a transparent panel, where the transparent panel is placed into the printer and a solder paste or glue is printed on the transparent panel by using a template suitable for the transparent panel;
• scanning the transparent panel to obtain image data;
• obtaining a simulated image of the transparent panel according to the image data;
• determining an offset between an actual position and a respective ideal position of the solder paste or glue printed at each place on the transparent panel according to the simulated image;
• recording the offset;
• repeating said acquiring, scanning, obtaining, determining and recording a predetermined number of times;
• counting statistically each offset recorded;
• and
• computing the printing accuracy of the printer based on said counting.