CN106249126A

CN106249126A - Backboard detection method

Info

Publication number: CN106249126A
Application number: CN201610564228.2A
Authority: CN
Inventors: 陈祥鑫
Original assignee: ZHEJIANG HUAXIN INDUSTRY Co Ltd
Current assignee: ZHEJIANG HUAXIN INDUSTRY Co Ltd
Priority date: 2016-07-18
Filing date: 2016-07-18
Publication date: 2016-12-21

Abstract

The invention discloses a kind of backboard detection method, be fixed backboard by design specialized test frame, then test every electric property of backboard, finally detect back plate surface flatness, detection project is complete, and detection efficiency is higher.

Description

Backboard detection method

Technical field

The invention belongs to backboard detection method field.

Background technology

The application in backplane technology field relates to the fields such as communication, space flight, automobile, base station.Along with optical-fiber network is from 2G-3G- 4G-5G, the technology of backboard requires also constantly changing, particularly the number of plies of backboard, layout, the aspect such as pressure；Adapter Crimping require and the layer that pushes away of high-density connector makes new advances, test request is also made to higher required precision.

Back plate testing is typically the basic circuit of detection backboard the most at present, and the detection backboard not having complete set is each Individual parameter, if method that can be properly functioning.

Summary of the invention

For the deficiencies in the prior art, the invention provides the back of the body of a kind of each technical parameter that can completely detect backboard Board detecting method.

For achieving the above object, the technical scheme is that a kind of backboard detection method, including walking as follows Rapid:

1) move towards to make test frame according to size, shape and the wiring of backboard, backboard is fixed in test frame, and ensures The tow sides of backboard all have enough spaces；

2) according to the adapter related on backboard, design and the test module of connector contact, and form an analog circuit, Then corresponding adapter is inserted on backboard, contacts with PIN needle, connect circuit, obtain relevant unit for electrical property parameters, and read guarantor Deposit to PC；

3) different according to the parameter that need to record, change corresponding adapter, repeat step 2)；

4) test frame is placed in AOI equipment, utilizes the photographic head in AOI that phase occurs between one end and the other end of backboard To displacement, in displacement process, backplane region is repeatedly interrupted shooting by photographic head, and break time ensures adjacent twice shooting Image has overlapping region, and by image data storage；

5) pass through the image zooming-out to storage of the processing unit in AOI, and according to shooting time order, image mosaic has been become Image, to detect the flatness of back plate surface and whether incomplete.

Further described step 2) in use automated machine device to take adapter insert on backboard, described automatically Change machinery and complete mechanical action by writing respective action program.

Compared with prior art, the invention has the beneficial effects as follows: backboard to be tested can be made to be in steady status, and not The tow sides affecting backboard use test；The detection of taking pictures backboard of AOI equipment need to take a large amount of photo, and speed is relatively slow, and By test program and corresponding adapter, the performance of backboard is detected the most faster, thus initially enter interlock circuit and arrange conjunction Whether rationality and circuit coordinate with adapter and can properly functioning detect, and detection project is complete, and parameter is accurate, qualified after pass through AOI equipment carries out detection and improves efficiency back plate surface.

Detailed description of the invention

S1.backplane(is hereinafter referred to as: BP) i.e. backboard, assigned supplier provide, purchase relevant connection according to technique Device and other parts.

S2. working region is divided into 3 blocks: plug region, crimping district, test section.Components and parts are different from PCB's etc Weldment, but exempt from the plug connector of welding, it is ensured that the PIN needle of all adapters contacts with the perfect of pad hole on BP, and ensures Looper does not reversely misplace.Use special tooling that the BP completing plug-in unit carries out the detection of problem above.Confirm errorless after put It is placed on the special antistatic logistic car identified, waits to be tested.

S3: before test, needs accurate two groundworks: one is test frame and design and the making testing module.Root According to backboard size and wiring trend, make test frame, according to the adapter related on BP, design the survey with connector contact Die trial block.After forming an analog circuit, by contacting with PIN needle, draw relevant unit for electrical property parameters: such as capacitance resistance Deng, these data will read PC by embedded digital circuit tester.

S4: two is to program this BP, according to customer requirement, according to circuit diagram related data and document, BP is carried out entirety Programming: machinery location, AOI test and electric performance test must be considered.Newly organized program needs to debug in view of engineering mode: Confirm standardization and integrity that all models set up, more reasonably make overall planning, it is ensured that higher testing efficiency and feasible Property.

S5: after all preparations are complete, first does a System self-test to test equipment, it is ensured that all mechanical parts are transported Row is normal.BPA is placed on test block, and test block is fixed on appointment position, checks whether earth lead contacts well, it is ensured that formed Analog circuit.

S6: first BPA is carried out machinery location, it is ensured that BPA to be measured is placed on the exact position of procedure stipulation.It is utilized respectively High definition camera is positioned by the hole, location on upper four angles of BPA, is identified, and is finely tuned, to reach test request.Open Test program, AUTO TEST, if institute occurs FAIL in steps, then will show in the window, and be acted upon.PIN BENT, Then need to be confirmed whether looper, utilize high definition camera magnifier, directly can navigate to the most a certain PIN, be repaired also RETEST, until P programming system provides PASS result.

The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also Should be regarded as protection scope of the present invention.

Claims

1. a backboard detection method, comprises the steps:

Backboard detection method the most according to claim 1, it is characterised in that: described step 2) middle employing automated machine dress Putting the adapter insert on backboard of taking, described automated machine device completes mechanical action by writing respective action program.