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Finished small PCS board rework method

A technology for finished products and bottom plates, which is applied in the field of rework of finished small PCS boards, can solve the problems of high production cost and troublesome fixed mold production, and achieve the effects of saving production costs, simple and fast production process, and strong adaptability

Active Publication Date: 2019-01-08
XIAN KING BROTHER CIRCUIT TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The present invention is applied to the grinding rework of finished small PCS boards with a plate thickness ≥ 2.0mm. The grinding rework of the existing finished small PCS boards needs to make a special fixed mold to fix the finished small PCS boards for grinding operations. Due to different Specifications The size of the finished small PCS board is different. The fixed molds of different specifications are required for the finished small PCS boards of different specifications. However, the existing fixed molds are troublesome to make and the production cost is high.

Method used

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  • Finished small PCS board rework method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] S1, rework tray production: according to the size and quantity of the finished small PCS board 3 that needs to be reworked, the scrap plate or expired sheet is processed to obtain the bottom plate 1, and the size of the bottom plate 1 does not exceed the maximum size of the grinding plate allowed by the grinding machine; then Around the bottom plate 1, four end-to-end retaining strips 2 are fixedly arranged, and four retaining strips 2 form a rectangular retaining edge. The thickness of the rectangular retaining edge does not exceed the thickness of the finished small PCS board 3. The size of the retaining edge is based on Determined by the size and quantity of the finished small PCS boards 3 that need to be reworked, the ribs and the bottom plate 1 form a rework tray;

[0034] S2. Rework method: before rework, put the finished small PCS boards 3 between the ribs, and make the finished small PCS boards 3 neatly arranged, and each finished small PCS boards 3 closely offse...

Embodiment 2

[0037] S1, rework tray production: according to the size and quantity of the finished small PCS board 3 that needs to be reworked, the scrap plate or expired sheet is processed to obtain the bottom plate 1, and the size of the bottom plate 1 does not exceed the maximum size of the grinding plate allowed by the grinding machine; then Use double-sided adhesive tape around the base plate 1 to paste four retaining strips 2, so that the four strips are connected end to end, and the four retaining strips 2 form a rectangular retaining edge. The thickness of the rectangular retaining edge does not exceed the thickness of the finished small PCS board 3, so The size of the ribs is determined according to the size and quantity of the finished small PCS boards 3 that need to be reworked, and the ribs and the base plate 1 form a rework tray;

[0038] S2. Rework method: before rework, put the finished small PCS boards 3 between the ribs, and make the finished small PCS boards 3 neatly arran...

Embodiment 3

[0041] S1, rework tray production: according to the size and quantity of the finished product small PCS plate 3 that needs to be reworked, the edge of the scrap plate or the expired sheet is cut to obtain a rectangular base plate 1, the thickness of the base plate 1 is 1mm, and the size of the base plate 1 Do not exceed the maximum size of the grinding plate allowed by the grinding machine; then use double-sided adhesive tape to paste four bars 2 around the bottom plate 1, so that the four bars are connected end to end, the thickness of the bar 2 is 1.2mm, and the bar 2 The width of the wall is 2.4mm, four retaining strips 2 surround and form a rectangular retaining, the thickness of the rectangular retaining is no more than the thickness of the finished small PCS plate 3, the size of the retaining is according to the size of the finished small PCS plate 3 reworked as required Determined by size and quantity, the ribs and the bottom plate 1 form a rework tray;

[0042] S2. Rew...

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Abstract

A method for rework a small PCS board of a finished product comprises the following steps: (1) manufacturing a reworking pallet; processing a scrap plate or an expired plate to obtain a bottom plate,fixedly arranging four end-to-end connected stoppers around the bottom plate, wherein the four stoppers are enclosed to form a rectangular stopper edge, and the stopper edge forms a reworking pallet with the bottom plate; 2, a rework method: before rework, that finished small PCS board are placed between the retaining edges, and the finished small PCS board are arranged neatly, and the edges of the finished small PCS boards arranged on the outermost side are pressed against the inner edges of the retaining edges; And then grinding the arranged finished small PCS boards by using a grinding machine, after one side of the finished small PCS boards is processed by the grinding machine, the finished small PCS boards are turned over to carry out the grinding plate treatment of the steps; S3. Cleaning: The finished PCS board which has been ground on both sides is cleaned and dried by air gun. The invention has the advantages of simple and quick manufacturing process, strong adaptability and low manufacturing cost.

Description

technical field [0001] The invention relates to the field of circuit boards, in particular to a method for reworking finished small PCS boards. Background technique [0002] The present invention is applied to the grinding rework of finished small PCS boards with a plate thickness ≥ 2.0 mm. The grinding rework of the existing finished small PCS boards needs to make a special fixed mold to fix the finished small PCS boards for grinding operations. Due to different The sizes of the finished small PCS boards are different, and the fixed molds of different specifications are required for the finished small PCS boards of different specifications, but the existing fixed molds are troublesome and costly to manufacture. Contents of the invention [0003] Based on this, it is necessary to provide a method for reworking finished small PCS boards, comprising the following steps: [0004] S1. Production of rework trays: according to the size and quantity of the finished small PCS boa...

Claims

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Application Information

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IPC IPC(8): H05K3/00
CPCH05K3/0011H05K2203/025
Inventor 程卫涛武守坤乔元刘敏卢毅
Owner XIAN KING BROTHER CIRCUIT TECH