PCB jigsaw is only for the convenience of production. For the board manufacturer, his base material is generally relatively large. Many boards are made at a time, and then cut off 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.
A PCB puzzle has several definitions. It is a convenient plug-in for customers. It is convenient for manufacturers to produce by themselves. It is a material saving. A convenience plug-in is what the customer requires, and you have to do it as required. 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 many margins! For example, a material of 1 meter 2 by 1 meter will be perfect if you open a 34X41 CM puzzle.
PCB jigsaw method
PCB splicing methods, including the use of Excel programs stored in well-known computers to create finished board splicing worksheets and blank sheet splicing worksheets, as well as the use of the above worksheets; finished board splicing worksheets are used to complete the finished product The process of slabs with different phases on the slabs. Each column of the finished slab paneling worksheet is used to place the data of the same category of different slab paneling schemes or the Excel internal function calculation formula of the data, each row Cells are used to place different types of data of the same puzzle plan or Excel internal function calculation formulas for the data. The specific method to create a finished board puzzle worksheet is:
(1) Start the Excel program stored in a known computer, create a new workbook, and select a worksheet;
(2) Use a cell in the table to enter the name of the worksheet:
(3) Use a row of cells in the table as the header of the worksheet, and enter the category name of the data in the column in each cell;
(4) Create a data input area:
(5) Create data operation area
(6) Create data output area
(7) Create puzzle operation area
(8) Create an indirect output area. Use Excel’s internal search and reference functions to reference all the data in the worksheet of the puzzle operation area and place it in the indirect output area.
PCB jigsaw skills
PCB jigsaw is something that PCB factories often do. What matters should be paid attention to when making a jigsaw? What are the key rules for PCB jigsaw? Summarize for you as follows:
First of all, it is the problem of the puzzle. We know that the main problem of the 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.
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). The orientation should be consistent, and there can be no mirror image, which will cause the coordinate positioning problem of the processing.
Secondly, 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 should be no connector extension. If this situation exists, it will prevent the tool from separating after the welding is completed.
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 approach is to set the distance 5mm from the edge and the direction of travel is inconsistent when the distance is different (to distinguish the direction of entry): [When setting the reference positioning point, usually leave a 1.5 mm non-resistance area around the positioning point. Similar pads or other similar]
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 puzzle is mainly to save production and processing costs (making the machine processing speed several times faster). The unreasonable design will make the later period full of problems. You can take a closer look to prevent problems.
First of all, it is the problem of the puzzle. We know that the main problem of the 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.
