Forming method for light bar circuit board

Abstract

The invention relates to a forming method for a light bar circuit board, which comprises the steps of designing a forming line on a PNL (pulsed neutron log) board, designing a plurality of set boards in the forming line, arranging positioning holes at corners at four edges of each set board and arranging a plurality of direction holes in a bottom frame strip of a forming outer frame outside the PNL forming line, inserting and positioning PINs on a forming machine according to the positions of the positioning holes, and placing the PNL board on the positioning PINs in a sheathing way according to an indication direction of the direction holes, drilling a plurality of fixing holes in a top frame strip of the forming outer frame at equal intervals by using the forming machine, inserting and positioning PINs, except the top frame strip of the forming outer frame, removing the bottom frame strip, a left frame strip and a right frame strip of the forming outer frame, V-cutting V-shaped pits in the PNL board by using a V-cut machine, sheathing the V-cut PNL board on the PINs of the forming machine, striking a plurality of set boards on the PNL board within the forming outer frame from the bottom frame strip to the top frame strip of the PLN board forming outer frame according to requirements, and forming a plurality of PCS (personal communication system) boards on each set board, wherein the PCS boards are separated by forming slots, and a breaking frame formed at an area between each V-shaped pit and the forming line is connected with the PCS boards.

Description

technical field [0001] The invention relates to the technical field of photoelectric circuit board manufacturing methods, in particular to a method for forming a Light bar circuit board. Background technique [0002] Light bar circuit board is a kind of photoelectric circuit board. Light bar refers to light bar. Light bar circuit board is a light bar circuit board. Its main purpose is to provide backlight for light-emitting panels. Light bar circuit board has the characteristics of thin thickness and large aspect ratio, usually the thickness of the board is less than 0.7mm, and the aspect ratio is above 70:1. Therefore, the light-emitting panel made of this type of circuit board has thin thickness and light weight. The advantages. However, due to the thin thickness and large aspect ratio of the light bar circuit board, the forming of the light bar circuit board is more complicated than that of ordinary circuit boards. The molding method of existing Light bar circuit board ...

AI Technical Summary

Problems solved by technology

This light bar circuit board molding method has the following disadvantages: 1. Because the aspect ratio of the light bar circuit board is more than 70:1, and the thickness of the board is relatively thin, its strength is very poor, so in step 3, the PCS board 2a is easily Extruded by the milling force of the milling cutter 3b, it is bent and deformed, and arches appear in the middle, resulting in abnormal width of the middle plate, resulting in unqualified dimensions, and ultimately affecting product quality; in step 4, the set plate 20 is easily Affected by the fixing force, there is a phenomenon of arching in the middle, which causes the position of the V pit to be wrong and the size is unqualified

2. Because the width of the PCS board 2a is small, generally 5mm, and there is a forming groove 2b between each PCS board 2a, it is easy to cause excessive V-cut when the set board 20 passes through the V-cut when doing V-cut, so that the Abnormality that PCS board 2a is disconnected from break frame 2d

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