PCB Tech - What does pcb puzzle mean?Six skills of PCB jigsaw

Introduction of PCB puzzle
PCB jigsaw is only for the convenience of production. For the board manufacturer, his base material is generally relatively large. They make many boards at a time, and then cut them one by one. If the jigsaw is mainly used for welding production, Imagine a board with a big fingernail is welded one by one on an SMT machine the size of a car.

PCB puzzle has several definitions! The convenience of the plug-in is one that is convenient for the manufacturer to produce by itself, which is a material saving! The convenience of the plug-in is that the customer requires such a spell, and you must do it according to the requirements. The manufacturer's convenience in production is to facilitate V-cutting and so on. Saving materials is for more perfect use of materials without wasting or leaving too much side material! For example, if you open a 34X41CM jigsaw for a material of 1 meter 2 by 1 meter, it will be perfect.

PCB jigsaw skills
1. First of all, there is the problem of puzzle. We know that the main problem of puzzle is to save production costs. For PCB panel width ≤260mm～300mm, it varies according to different production lines. Because we may have a lot of materials, one material gun corresponds to one module in our processing equipment, so if the puzzle exceeds the range of the module, the processing speed will become very slow.

2. The outer frame (clamping side) of the PCB panel should be carefully considered to ensure that the PCB panel will not be deformed after being fixed on the fixture (generally, it is not allowed to open V grooves on this side). For the layout of components, first All orientations should be consistent, and there should be no mirror image, which will cause problems in the coordinate positioning of the machining.

3. Second, at the edge (between the outer frame of the jigsaw panel and the inner small board, and between the small board and the small board), there can be no connector extension. If this happens, it will prevent the tool from separating after the welding is completed.

4. In order to ensure the position and level of the detection board, we need to set more than three positioning points on the edge of the board. By optically detecting these three points, the reference coordinates of the entire processing and the levelness of the board can be obtained. The correct way is to set the distance 5mm from the edge and the direction of travel is inconsistent (to distinguish the direction of entry): [When setting the reference positioning point, usually leave a non-resistance area 1.5 mm larger than it around the positioning point. Similar pads or other similar]

5. There must be at least three positioning holes in each small board, 3≤aperture≤6 mm, and no wiring or patching is allowed within 1mm of the edge positioning hole (to prevent misjudgment). PCB boarding is mainly to save production and processing costs (making the machine processing speed several times faster). Unreasonable design will make the later period full of problems. You can take a closer look to prevent problems.

6. The main problem of jigsaw puzzle is to save production cost. For PCB panel width ≤260mm～300mm, it varies according to different production lines. Because we may have a lot of materials, one material gun corresponds to one module in our processing equipment, so if the puzzle exceeds the range of the module, the processing speed will become very slow.