PCBA test stand is a device used to test PCBA finished products. When making PCBA test racks, PCBA processing plants usually need to provide Gerber files and PCBA samples to facilitate the production of test racks. For the current PCBA test bench, only a few pressure plate buckles are installed on the test bench, and the PCBA is fixed by a thimble and pressure plate buckle. During the PCBA function test, press the PCBA into the pressure plate buckle with both hands. Due to uneven force or insufficient compression, PCBA can easily cause poor contact between the testing needle and PCBA, seriously affecting testing efficiency and accuracy; If too much force is applied, it is easy to deform or damage the PCBA when pressing down, and it is also easy to damage the test needle of the testing frame, causing significant losses.

1、 Material preparation

After determining the plan based on the information, it is necessary to prepare hardware materials (electronic components), relevant additional peripheral circuits, equipment, frame materials (such as acrylic boards), glue, electric screwdriver, screws, wire materials, etc. to determine the plan.

2、 Determination and inspection of the structural mode of the testing frame

3、 Wiring requirements

1. The opening of the wire needs to be made within 2mm. First, add tin to the opening of the wire and the tin wire position of the test needle.

2. The welded wires should not have any oscillation or looseness.

3. Separate and organize the strong and weak wires in the testing frame, and tie the wires with wires.

The connectors of ammeters and voltmeters must be installed with multimeter probes, and banana plugs cannot be installed to test current, voltage, and other functions to ensure the safety of the operator.