Welding and positioning jig for flat cable

Abstract

The invention provides a welding and positioning jig for a flat cable. The welding and positioning jig comprises a holding handle, a connecting piece, limiting posts and positioning needles; the connecting piece is fixedly connected with the holding handle; the limiting posts are fixedly connected at two sides of the lower end surface of the connecting piece; and the positioning needles are fixedly arranged at the two sides of the lower end surface of the connecting piece and are arranged between the limiting posts. The positioning needles pass through positioning holes in the flat cable and a circuit board, so that the flat cable and the circuit board are aligned to each other and are positioned; the inserting depth of each positioning needle is limited by the limiting posts, so that the inserting depth of each positioning needle is less than the thickness of the circuit board. The welding and positioning jig for the flat cable, provided by the invention, can be used for limiting by increasing the positioning depth that each positioning needle is inserted, so that the inserting depth of each positioning needle is less than the thickness of the circuit board. Therefore, an element on the back surface of the circuit board is prevented from being damaged through the collision of the positioning needles. Meanwhile, the welding and positioning jig for the flat cable, provided by the invention, has the advantages of simple structure, relatively low cost, firmness and high efficiency of clamping and the like.

Description

Technical field [0001] The invention relates to the field of welding of electronic components, in particular to a positioning jig for flat wire welding. Background technique [0002] Flexible circuit board or FPC flexible cable is a kind of flexible printed circuit board. Many electronic devices, such as cameras, LCD, etc., are connected to the circuit board by cable. Because the gold fingers of the cable are very thin, usually each gold The minimum finger width is 0.3mm and the minimum spacing is 0.5mm. The operator needs to be very accurate when soldering the cable to the circuit board. Since manual alignment usually cannot meet the welding requirements, the current commonly used positioning method is to use projection magnification positioning (that is, through the camera photography, magnify the display on the monitor, so that you can observe whether the gold finger and the pad position on the circuit board are present. Alignment), and the use of base positioning pin positio...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a simple operation, low cost and accurate positioning fixture for wiring welding positioning, which is mainly used to solve the problem of how to avoid the traditional positioning pin from easily passing through the back area of ​​the circuit board pad and damaging the back components during positioning.

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