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Positioning fixture for assembling flexible printing circuit (FPC)

A flexible circuit board and positioning fixture technology, which is applied in the directions of printed circuits, printed circuit manufacturing, and assembling printed circuits with electrical components, can solve the problems of difficulty in ensuring the consistency of positioning pins and countersunk holes, affecting the positioning accuracy of positioning pins, etc. Accurate verticality, improved assembly accuracy, and easy installation of screws

Inactive Publication Date: 2012-05-23
惠州市华阳数码特电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the wear of the drill bit, it is difficult to ensure the consistency of the positioning pin and the counterbore when assembling; in addition, the positioning accuracy in conventional processing is ±0.02mm, which will also affect the positioning accuracy of the positioning pin

Method used

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  • Positioning fixture for assembling flexible printing circuit (FPC)
  • Positioning fixture for assembling flexible printing circuit (FPC)
  • Positioning fixture for assembling flexible printing circuit (FPC)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a positioning fixture for flexible circuit board assembly is composed of a layer of bottom plate 1, a layer of thin steel sheet 2 on the bottom plate 1, a layer of lock pressing plate 4 on the thin steel sheet 2, and a layer of lock pressing plate 4. One layer of FPC carrier board 5, vertically penetrates the thin steel sheet 2, the product positioning pin 6 of the lock pressing plate 4 and the FPC carrier board 5 and the carrier board positioning pin 7, vertically penetrates the locking pressing plate 4 and the thin steel sheet 2 downwards and The above-mentioned two-layer board and two kinds of positioning pins are fastened to the screws 8 on the bottom plate 1.

[0028] The processing requirements of each component are as follows:

[0029] The upper surface of the bottom plate 1 is processed with the counterbore 9 for the product positioning pin, the counterbore 10 for the positioning pin of the carrier plate, and the assembly screw hole 1...

Embodiment 2

[0049] Such as Figure 5 As shown, a positioning fixture for assembly of a flexible circuit board (FPC) according to the present invention consists of a base plate 1, a lower thin steel sheet 2 (1), a middle transition plate 3, and an upper thin steel sheet 2 ( 2), one layer of locking plate 4, one layer of FPC carrier board 5, vertically penetrate the five-layer board except the bottom plate 1 and insert the product positioning pin 6 of the bottom plate 1 and the carrier plate positioning pin 7, vertically penetrate two layers of thin steel sheets , the intermediate transition plate 3 and the lock pressing plate 4 and the screws 8 fastening the above-mentioned four-layer plate and two kinds of positioning pins on the bottom plate 1.

[0050] The processing requirements of each component are as follows:

[0051] The lower thin steel sheet 2 (1), the upper thin steel sheet 2 (2), the intermediate transition plate 3, the lock plate 4, and the FPC carrier plate 5 process holes t...

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Abstract

The invention belongs to the fixture field used in processing procedures of electronic products, and in particular relates to a positioning fixture for assembling a flexible printing circuit (FPC). The fixture comprises a layer of bottom plate, a layer of FPC carrier plate arranged on the bottom plate, a product positioning pin and a carrier plate positioning pin, wherein the product positioning pin and the carrier plate positioning pin vertically penetrate through the FPC carrier plate and are inserted into the bottom plate. The fixture is characterized in that a thin steel sheet is also arranged between the bottom plate and the FPC carrier plate and provided with holes so that the product positioning pin and the carrier plate positioning pin can pass through, the product positioning pinand the carrier plate positioning pin are tightly clamped by the thin steel sheet through the holes so that shaking is not generated, and the thin steel sheet is also provided with a layer of bonnet lock pressing plate used for pressing the thin steel sheet tightly. The fixture can reduce the possibility of deviation caused in the assembling process, is convenient for assembling, improves the assembling precision of the FPC and provides the accurate positioning for subsequent processing procedures of the FPC.

Description

technical field [0001] The invention belongs to the field of clamps used in the processing process of electronic products. Background technique [0002] A fixture is a device used to fix the processing object in the process of mechanical manufacturing so that it occupies the correct position for construction or inspection. In a broad sense, any process in the process, the device used to install the workpiece quickly, conveniently and safely, can be called a fixture. [0003] Conventional positioning fixtures for flexible circuit board (FPC) assembly use positioning pins for positioning. There are only two layers of boards, the bottom plate and the FPC carrier board, and the positioning pins are usually fixed in the counterbore of the bottom plate. The counterbore on the bottom plate is usually Processing by drilling. Due to the wear of the drill bit, it is difficult to ensure the consistency of the positioning pin and the counterbore when assembling; in addition, the posit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/00H05K3/30H05K3/36
Inventor 谢华龙王小林祝迈陶建新
Owner 惠州市华阳数码特电子有限公司
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