Bending system for bending and forming flexible circuit board by 180 degrees

Abstract

The invention relates to the field of bending forming of flexible circuit boards, in particular to a bending system for bending and forming a flexible circuit board by 180 degrees. The bending system comprises a turntable, clamps, a fixing disc, a first bending device and a second bending device; the turntable is rotationally arranged; the clamps are uniformly arranged on the circumference of the turntable; the fixing disc is located above the turntable and is fixedly arranged; the first bending device and the second bending device are arranged on the circumference of the turntable; the first bending device is used for bending the flexible circuit board by 90 degrees; the second bending device is used for continuously bending the bent flexible circuit board to 180 degrees; the second bending device comprises a second bending auxiliary positioning rod and a second bending auxiliary positioning driving mechanism; the second bending auxiliary positioning rod is connected to the inner side of the bent flexible circuit board; and the second bending auxiliary positioning rod is mounted on the second bending auxiliary positioning driving mechanism. The second bending auxiliary positioning rod can ensure that the circuit board on the upper layer and the circuit board on the lower layer do not make contact with each other, and core wires are prevented from adhering with each other after the circuit boards are turned over.

Description

technical field [0001] The invention relates to the field of bending and forming of flexible circuit boards, in particular to a bending system for 180-degree bending and forming of flexible circuit boards. Background technique [0002] At present, most of the bending of the flexible circuit board (referred to as FPC) is to be bent by upper and lower knife clamping. [0003] For example, the Chinese invention patent (publication number: CN110757777A, publication date: 20200207) discloses an automatic bending machine for flexible circuit boards, including a workbench, an upper knife pressing mechanism and a rotary bending mechanism. The upper knife pressing mechanism includes upper knife and The first air cylinder, the upper knife is driven and connected with the first air cylinder; the rotary bending mechanism includes a second air cylinder, a transmission assembly and a rotary bending knife. Knife drive connection; when working, place the flexible circuit board to be bent o...

AI Technical Summary

Problems solved by technology

[0005] 1. When the traditional bending mechanism performs 180-degree bending, excessive bending often occurs, and the upper and lower circuit boards formed after bending are pressed together, causing the core wires on the circuit board to stick

[0006] 2. When a flexible circuit board needs to be bent in multiple places, because more space needs to be reserved for the bending mechanism, the traditional fixture cannot fix the flexible circuit board during bending, which affects the bending quality

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