CN1940567B

CN1940567B - Conveying and gripping device for circuit board inspection

Info

Publication number: CN1940567B
Application number: CN2005101051798A
Authority: CN
Inventors: 徐贵良
Original assignee: Teradyne Inc
Current assignee: Teradyne Inc
Priority date: 2005-09-30
Filing date: 2005-09-30
Publication date: 2011-01-19
Anticipated expiration: 2025-09-30
Also published as: CN1940567A

Abstract

The invention relates to a conveying clamping device for circuit board detection, which is provided with two standing tables, wherein each standing table is provided with a roller, a driving device, a conveying belt and a clamping device driven by the roller, when a circuit board is conveyed to the clamping device, the clamping device can ascend so as to carry out circuit board detection, the conveying belt can convey another circuit board to a position close to the clamping device, after the circuit board is detected to be finished, the conveying belt can take the detected circuit board away from the clamping device and convey the other circuit board to the clamping device, so that the circuit board can be conveyed to the clamping device in a short time, the circuit board conveying time can be shortened, and the circuit board detection efficiency can be further improved.

Description

The transferring clipper that is used for circuit board detecting

Technical field

The present invention is a kind of transferring clipper, provide a kind of can be when clamping device rises, what still can continue transfers to circuit board the device that is in close proximity to clamping device.

Background technology

In recent years along with the rise of electronic industry, yet the basic building block of all electronic products is a circuit board, so the detection of circuit board just has its importance, and the detection of circuit board all is to rely on a circuit board testing machine,

Existing circuit board testing machine please cooperate with reference to shown in Figure 8, and it has a board, and board is provided with at least one group of clamping device 50 with air pressure or oil pressure actuated, arrangement for detecting and two groups of gearings 60 and 61.

This clamping device 50 has two and is arranged at the board place, and relatively-movable upright platform 51, and each upright platform 51 place is provided with a conveying belt and a liftable intermediate plate 52, and clamping device 50 is between two gearings 60 and 61.

Gearing 60 can be transported to clamping device 50 places with a circuit board 70, and the intermediate plate 52 of clamping device 50 will rise, and force circuit board 70 to rise, the gearing 60 that this moment is all and the conveying belt of clamping device 50 will stop action, and arrangement for detecting will begin the testing circuit plate, after detection finishes, its initial position will fall back in the intermediate plate 52 of clamping device 50, conveying belt will entry into service, so that the circuit board that will detect 70 bands are from clamping device 50 places, and another gearing 61 can be sent to the circuit board 70 that breaks away from clamping device 50 it and locate, and gearing 60 can treat that circuit board 70 transfers to clamping device 50 places with another.

Yet available circuit plate machines still has its shortcoming to exist, though gearing 60 and 61 and clamping device 50 its power resources are respectively arranged, but clamping device 50 is when clamping circuit board under test 70, gearing 60 can receive the signal from clamping device 50, so gearing 60 can stop action with the conveying belt of clamping device 50, and make circuit board to be detected 70 tend to stagnate in gearing 60 places, so after the conveying belt of gearing 60 and clamping device 50 resumes operation, circuit board 70 to be detected needs a period of time can arrive at the position of the intermediate plate 52 of clamping device 50, so influences the efficient of whole detection circuit board 70.

In addition, existing circuit board testing machine all is clamping device 50 and the intermediate plate 52 that is designed to single specification, therefore when the size of circuit board 70 changes, the specification of clamping device 50 and fail with change, and spend the circuit board 70 of the identical or more various different sizes of time detecting, so cause the constant of whole detection time or increase, so the inconvenience that has it to use.

Summary of the invention

Main goal of the invention of the present invention be to provide a kind of can be when clamping device rises, what still can continue transfers to circuit board the device that is in close proximity to clamping device.

In order to reach aforesaid goal of the invention, technological means of the present invention is to provide a kind of transferring clipper that is used for circuit board detecting, it has two parallel upright platforms, the medial surface of each upright platform is interval with some rollers and clamping device, the place is arranged with conveying belt in roller, each clamping device has outer anchor clamps and interior anchor clamps, the centre of outer anchor clamps is formed with groove, interior anchor clamps are to be placed in the groove, in each, be provided with several jacking gears between outer anchor clamps and upright platform, each jacking gear has a holder and an elevating bracket, the elevating bracket of the jacking gear between interior anchor clamps and upright platform is positioned at the two ends of the medial surface of anchor clamps, the two ends of the medial surface of anchor clamps outside the elevating bracket of the jacking gear between outer anchor clamps and upright platform is positioned at, holder are individually fixed in the medial surface of upright platform;

The lateral surface of each upright platform is interval with drive unit and pressure apparatus, and drive unit interconnects with conveying belt respectively, and pressure apparatus interconnects with pipeline and jacking gear.

When clamping device and circuit board rising, the conveying belt circuit board that another is to be detected that still can remain in operation moves to and is in close proximity to the clamping device position, and after detection finishes, clamping device can be got back to its initial position with the circuit board that has detected, conveying belt can will detect the circuit strip that finishes from the clamping device place, and another circuit board transferred to the clamping device place, so circuit board only needs the short time just can be conducted to the clamping device place, so can shorten the circuit board transmission time, and then increase the efficient of circuit board detecting.In addition, the design of this clamping device is when the size of circuit board changes, the inside and outside anchor clamps of clamping device can still make inside and outside anchor clamps rise simultaneously according to the specification size of circuit board or only interior anchor clamps rise, and indivedual clampings can cooperate the circuit board of its specification, therefore the associated components of machines just can avoid changing and adjust, so its convenience is arranged.

Description of drawings

Fig. 1 is a sectional perspective exploded view of the present invention.

Fig. 2 is a stereo appearance figure of the present invention.

Fig. 3 is an end-view of the present invention.

Fig. 4 is the action reference synoptic diagram that is provided with circuit board testing machine of the present invention.

Fig. 5 is an action reference synoptic diagram of the present invention.

Fig. 6 is another action reference synoptic diagram of the present invention.

Fig. 7 is two action reference synoptic diagram in addition of the present invention.

Fig. 8 is the action reference synoptic diagram of existing circuit board testing machine.

Embodiment

The present invention is further detailed explanation below in conjunction with accompanying drawing:

The present invention is a kind of transferring clipper that is used for circuit board detecting, please cooperate with reference to figure 1, Fig. 2 and shown in Figure 3, it has two parallel upright platform 10, two upright platforms 10, the medial surface of each upright platform 10 is interval with some rollers 11 and a clamping device 20, is arranged with a conveying belt 12 in roller 11 places;

Each clamping device 20 has anchor clamps 22 in outer anchor clamps 21 and, in outer anchor clamps 21, be provided with

several jacking gears

213 and 222 between interior anchor clamps 22 and upright platform 10, each

jacking gear

213 and 222 has a holder and an elevating bracket, elevating bracket is respectively at the two ends place of outer anchor clamps 21 with the medial surface of interior anchor clamps 22, holder is individually fixed in the medial surface of upright platform 10, the centre of outer anchor clamps 21 is formed with a groove 211, interior anchor clamps 22 are to be placed in the groove 211, are formed with in addition some for the

ccontaining race

212 and 221 of roller 11 on outer anchor clamps 21 and interior anchor clamps 22 respectively at interval;

Lateral surface at each upright platform 10 is interval with at least one drive unit 13 and at least one pressure apparatus 14, each drive unit 13 can be a CD-ROM drive motor and gear set constitutes, each drive unit 13 interconnects with conveying belt 12 respectively, each pressure apparatus 14 interconnects with pipeline and

jacking gear

213 and 222, and each pressure apparatus 14 can be oil pressure or air pressure drives.

When reality is used, please cooperate with reference to shown in Figure 4, the present invention can be arranged at a board place with pick-up unit, and be respectively equipped with a gearing 40 and 41 in two ends of the present invention, please cooperate with reference to figure 5 and shown in Figure 7, yet the size of circuit board 30 and 30A is according to its effect, and it is different, clamping device 20 can be according to aforesaid different circuit board 30 and 30A, and can to set in advance be by what anchor clamps circuit board 30 and 30A to be risen, so that detect.

Please cooperate referring to figs. 1 to shown in Figure 5, when the size of circuit board 30 is big, gearing 40 can be sent to circuit board 30 upright platform 10 positions, and the conveying belt 12 that driven device 13 is driven is when transferring to clamping device 20 positions with this circuit board 30, the position of clamping device 20 is so-called surveyed area, pressure apparatus 14 meetings transfer to gases at high pressure or oil pressure the

jacking gear

213 and 222 of clamping device 20 via pipeline,

jacking gear

213 and 222 elevating bracket will force clamping device 20 to rise, the clamping device 20 that rises will force position circuit board 30 thereon together to rise, this moment, circuit board 30 meetings broke away from conveying belt 12, so that detect, gearing 40 can be sent to upright platform 10 positions by the circuit board 30 that another is to be measured simultaneously, conveying belt 12 can be transported to this circuit board 30 and be in close proximity to clamping device 20 positions, and be so-called zone to be measured between gearing 40 and the clamping device 20, so that carry out detection subsequently, after this circuit board 30 arrives the precalculated position, it is location to be measured, can not interfere with the circuit board 30 that is detecting, and gearing 40 will shut down with drive unit 13, so conveying belt 12 also can shut down.

After detection finishes, clamping device 20 will drop to initial position, and gearing 40 and conveying belt 12 will entrys into service, be with from clamping device 20 places detecting the circuit board 30 that finishes, and by another gearing 41 be sent to it the place, before be sent to the circuit board 30 that is in close proximity to clamping device 20, just can transfer to clamping device 20 places via conveying belt 12 simultaneously, and repeat previous step, so the position that circuit board 30 is sent to clamping device 20 just can be finished in the short time, so whole detection time just can with shortening and lasting.

Please cooperate again with reference to shown in Figure 6, when the size of circuit board 30A hour, only there is the elevating bracket of the jacking gear 222 of interior anchor clamps 22 can receive pressure from pressure apparatus 14, so have only interior anchor clamps 22 to rise, and the operation of its testing process and conveying belt 12 and gearing, as aforementioned, so do not give unnecessary details.

And above action is to be cut into surveyed area and zone to be measured with detecting respectively between the clamping device 20 of board and the gearing 40, so after the more little circuit board 30A of size enters zone to be measured, the distance of itself and surveyed area will be near more, therefore its displacement will with shortening, therefore when circuit board 30A enters surveyed area and detects, can in the short period, promptly be transferred into the surveyed area place.

Comprehensive above institute says, after clamping device 20 rises, when carrying out testing circuit plate 30, conveying belt 12 still can persistent movement, be moved into until another circuit board to be detected 30 and 30A and be in close proximity to clamping device 20 positions, and after detection finishes, clamping device 20 is got back to its initial position, conveying belt 12 can will detect the circuit board 30 and the 30A that finish and be with from clamping device 20 places, and another circuit board 30 and 30A transferred to clamping device 20 places, because circuit board 30 and 30A are transferred into already and are in close proximity to clamping device 20 places, so circuit board 30 and 30A only need the short time just can be transferred into clamping device 20 places, so can shorten circuit board 30 and 30A transmission time, and then increase the efficient of circuit board 30 and 30A detection.

The above; only be one of preferable feasible embodiment of the present invention; can not therefore promptly limit to interest field of the present invention; concerning being familiar with those of ordinary skill in the art; such as use technical scheme of the present invention and technical conceive to make other various corresponding changes and distortion, and all these changes and distortion all should belong within the protection domain of claim of the present invention.

Claims

1. A delivery clamping device for circuit board detection, characterized in that it has:

Two parallel vertical platforms, the inner surface of each vertical platform is provided with a number of rollers and clamping devices at intervals, and a conveyor belt is set on the rollers;

Each clamping device has an outer fixture and an inner fixture. A groove is formed in the center of the outer fixture. The inner fixture is accommodated in the groove. There are several lifting devices between the inner and outer fixtures and the stand. The device has a fixed seat and a lifting seat, the lifting seat of the lifting device between the inner fixture and the stand is located at both ends of the inner surface of the inner fixture, and the lifting seat of the lifting device between the outer fixture and the stand is located outside The two ends of the inner surface of the fixture and the fixing seat are respectively fixed on the inner surface of the stand;

The outer surface of each stand is provided with a drive device and a pressure device at intervals, the drive device is respectively connected to the conveyor belt, and the pressure device is connected to the lifting device with a pipeline.

2 . The conveying and clamping device for circuit board inspection according to claim 1 , wherein the outer clamp and the inner clamp are respectively formed with a plurality of wheel grooves arranged at intervals for accommodating rollers. 3 .