CN105974298A - Shielding box for pneumatically testing circuit boards and circuit board testing method - Google Patents
Shielding box for pneumatically testing circuit boards and circuit board testing method Download PDFInfo
- Publication number
- CN105974298A CN105974298A CN201610289452.5A CN201610289452A CN105974298A CN 105974298 A CN105974298 A CN 105974298A CN 201610289452 A CN201610289452 A CN 201610289452A CN 105974298 A CN105974298 A CN 105974298A
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- circuit board
- needle plate
- feed mechanism
- shielded box
- drawer type
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000007306 turnover Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000003028 elevating effect Effects 0.000 abstract 4
- 238000007789 sealing Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses a shielding box for pneumatically testing circuit boards. The shielding box comprises a shielding box housing with an opening in one sidewall, a drawer type feeding mechanism arranged in the opening of the shielding box housing and an elevating clamp arranged in the shielding box housing, wherein the drawer type feeding mechanism comprises two slide blocks spaced apart and circuit board pallets fixed on the two slide blocks, a guide rail for guiding the slide blocks to slide is arranged in the shielding box housing, and the elevating clamp comprises an upper needle plate and a lower needle plate arranged oppositely and an elevating cylinder which drives the upper needle plate and the lower needle plate to approach to or depart from each other. When a circuit board is placed on the circuit board pallets and conveyed to the place between the upper needle plate and the lower needle plate with the circuit board pallets, the elevating cylinder drives the upper needle plate and the lower needle plate to approach to each other, clamp the circuit board and be conductive with and be conducted with the circuit board for test. No visual angle blind area is achieved regardless circuit board accessing and placing directions, and board damage during accessing and placing processes can be maximally reduced. Positioning is accurate, operation is convenient and fast, and test efficiency is high.
Description
Technical field
The present invention relates to circuit board testing technical field, particularly relate to a kind of circuit board pneumatic test shielded box and
The method of testing of circuit board.
Background technology
The most common test fixture is manual press-down type (the most rotary, such as Fig. 1) and lift chair mechanisms
(such as Fig. 2), both test fixtures are all respectively the upper needle plate and lower needle plate with conductive pin to be fixed on folder
In the upper part 1 of tool and lower part 2, need manually being test for PCB (Printed Circuit during test
Board, printed circuit board (PCB)) plate is accurately placed between needle plate and lower needle plate, but due to upper and lower needle plate between
Space limited by self mechanism, manual operations narrow space, the most only 35mm.
The sight line that upper needle plate mechanism can block workman when picking and placeing pcb board causes there is operation vision dead zone so that
Be difficult to put standard when putting plate, time often result in location and forbidden to be difficult to be found and cause damage plate；Secondly, current machine
Structure mode need to design substantial amounts of auxiliary guide finger, and guide finger contributes to guiding workman more easily to put plate, but leads
Damage plate is caused to the pin also easy scratch PCB components and parts when taking plate；It addition, workman loads fixture pcb board
After also need to tight for clinching under shielded box or press button many times, the operation labor intensity causing workman is very big,
Easily tired and affect testing efficiency.Meanwhile, for improving usefulness per capita, mechanical hand is used to replace manually carrying out
The Full automatic penumatic test of pcb board is trend of the times, and this several frequently seen pneumatic test shielded box is uncomfortable at present
For full-automatic testing.
Summary of the invention
The deficiency existed in view of prior art, the invention provides a kind of accurate positioning, not rapid wear plate, test
Circuit board pneumatic test shielded box that efficiency is high and the method for testing of circuit board.
In order to realize above-mentioned purpose, present invention employs following technical scheme:
A kind of circuit board pneumatic test shielded box, including a sidewall opening shielded box housing, be located at described
The drawer type feed mechanism of the opening part of shielded box housing and the lift folder being located in described shielded box housing
Tool, the slide block that described drawer type feed mechanism includes two block gaps and the circuit being fixed on two described slide blocks
Sheet tray, offers the guide rail guiding described slide block to slide in described shielded box housing；Described lift fixture
Including the upper needle plate being oppositely arranged and lower needle plate and for drive described upper needle plate and described lower needle plate near with
The lift cylinder separated；Wherein, circuit board after being placed on circuit board pallet with described circuit board pallet
Sending between described upper needle plate and described lower needle plate, described lift cylinder drives described upper needle plate and described lower pin
Plate clamping close to each other circuit board therewith conducting are tested.
Further, described drawer type feed mechanism also includes two bracers, and each described slide block respectively connects
It is connected to a bracer described in, and described bracer is detachably connected with described circuit board pallet.
Further, described drawer type feed mechanism also includes lead and the spring with stub end, each
Described bracer two ends are equipped with a described lead the most actively, and described lead sequentially passes through described
It is fixed on described slide block after bracer, described spring.
Further, described drawer type feed mechanism also includes passing in and out cylinder, described turnover cylinder one end and institute
Stating shielded box housing to be relatively fixed, the piston rod of described turnover cylinder is relatively fixed with described slide block.
Further, described lift fixture also include upper needle plate relatively-stationary with described upper needle plate fix seat,
Lower needle plate relatively-stationary with described lower needle plate fixes seat, lifting guide pillar and compression spring, described lifting guide pillar
Fix seat through described upper needle plate and be fixed on described lower needle plate and fix on seat, the stub end of described lifting guide pillar
Abut described upper needle plate and fix the upper surface of seat；Described compression spring is sheathed on described lifting guide pillar and two ends
The described upper needle plate of elastic abutting fixes seat and described lower needle plate respectively；Described lift cylinder and described shielded box shell
Body is relatively fixed, and the piston rod of described lift cylinder fixes seat and its piston through described upper needle plate from bottom to top
On the end of bar elastic abutting under the effect of described compression spring is described, seat fixed by needle plate.
Further, stub end and the described upper needle plate of described lifting guide pillar is fixed and is additionally provided with linear axis between seat
Holding, described lifting guide pillar is arranged in described linear bearing.
Further, described circuit board pneumatic test shielded box also includes being separately fixed on described guide rail,
Warehouse entry near outside is to level sensor and the level sensor that delivers from godown near inner side.
Another object of the present invention is to provide the circuit board testing of a kind of foregoing circuit plate pneumatic test shielded box
Method, including:
S01, control centre initialize, i.e. control centre controls the piston rod elongation of lift cylinder, and drawer type
Feed mechanism ejects；
S02, loading circuit plate, will put into the circuit board pallet of drawer type feed mechanism by circuit board；
S03, drawer type feed mechanism warehouse entry, i.e. circuit board enter the upper pin of lift fixture with circuit board pallet
Between plate and lower needle plate；
After S04, warehouse entry put in place, lift cylinder piston rod shrinks, and circuit board is clamped by upper needle plate and lower needle plate,
Detection starts；
S05, detection terminate, and the piston rod elongation of lift cylinder, drawer type feed mechanism ejects；
S06, taking-up circuit board, repeat step S02.
Further, described step S02 and described step S06 are completed by mechanical hand, described circuit board torr
Being provided with the circuit board sensors for testing circuit plate laying state on dish, control centre passes according to circuit board
The state that delivers from godown of the feedback signal of sensor and drawer type feed mechanism controls loading and the taking-up action of mechanical hand.
Further, after described step S03 performs to exceed Preset Time, control centre does not receives warehouse entry yet
Warehouse entry to level sensor puts in place signal, and control centre then controls drawer type feed mechanism and ejects.
Due to the fact that the feed mechanism putting circuit board have employed drawer type design, circuit board when taking/put circuit board
Pallet may extend into outside the casing of shielded box, no matter which orientation taking laying board can accomplish without visual angle blind at
District, the damage plate that can cause during reducing taking laying board to greatest extent；It addition, the present invention uses source of the gas conduct
Power, accurate positioning, actuator is turnover cylinder and lift cylinder, and turnover cylinder is responsible for sending of circuit board
Entering and send, lift cylinder is responsible for upper and lower needle plate pressing circuit board, can realize certainly by combining control circuit
Dynamic control, convenient to operation, testing efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the rotary test fixture of prior art.
Fig. 2 is the structural representation of the lift test fixture of prior art.
Fig. 3 is the view that delivers from godown of the circuit board pneumatic test shielded box of the embodiment of the present invention.
Fig. 4 is the internal structure schematic diagram of the circuit board pneumatic test shielded box of the embodiment of the present invention.
Fig. 5 is the part-structure schematic diagram of the circuit board pneumatic test shielded box of the embodiment of the present invention.
Fig. 6 is the STRUCTURE DECOMPOSITION schematic diagram of the lift fixture of the embodiment of the present invention.
Fig. 7 is the circuit board detection method schematic diagram of the embodiment of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Executing example, the present invention is described in more detail.Should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Refering to Fig. 3 and Fig. 4, the circuit board pneumatic test shielding case of the present invention includes one of them sidewall opening
Shielded box housing 10, it is arranged on the drawer type feed mechanism 20 of the opening part of shielded box housing 10 and is arranged on
Lift fixture 30 in shielded box housing 10, as it is shown in figure 5, wherein drawer type feed mechanism 20 includes
The slide block 21 of two block gaps and the circuit board pallet 22 being fixed on two slide blocks 21, in shielded box housing 10
Offer the guide rail 11 that guide shoe 21 is slided；As shown in Figure 6, lift fixture 30 includes being oppositely arranged
Upper needle plate 31 and lower needle plate 32 and being used for drive needle plate 31 and lower needle plate 32 close to each other with separate
Lift cylinder 300；With circuit board pallet after the circuit board of test is placed on circuit board pallet 22
22 send into above between needle plate 31 and lower needle plate 32, and lift cylinder 300 drives upper needle plate 31 and lower needle plate 32
Clamping circuit board close to each other therewith conducting are tested.
Such as Fig. 3, the shielded box housing 10 of the present embodiment has main casing 11 and the screening cover on top of bottom
12, the two uses the mode of pivot joint to combine in the side away from opening, is using the side fastened near open side
Formula removably fits together, and when shielded box opened by needs, releases being fastened and connected near open side,
Rotate screening cover 12 the most upward.
Such as Fig. 5, drawer type feed mechanism 20 also includes a bracer 220 of two strips be arrangeding in parallel,
On each slide block 21, there is one bracer 220 each connection, and a bracer 220 is detachable with circuit board pallet 22
Ground connects, and can realize the dismounting of circuit board pallet 22, replacing easily.Specifically, each bracer
The middle part of 220 is provided with a groove, is provided with a Magnet in each groove, the two ends shape of circuit board pallet 22
Becoming and projection, the bottom of each projection is also provided with Magnet, when circuit board pallet 22 is placed into a bracer at two ends
After on 220, projection is embedded in corresponding groove, and is securely positioned within support by the way of magnetic suck
On block 220.
It addition, drawer type feed mechanism 20 also includes 4 leads 23 with stub end and 4 springs
24, each bracer 220 two ends are equipped with a lead 23 the most actively, make the stub end of lead 23
Be positioned to limit its abjection above bracer 220, and lead 23 other end sequentially pass through a bracer 220,
It is fixed on after spring 24 on slide block 21.Being preferably directed post 23 is bolt, and on each bracer 220, correspondence is opened
Being provided with through hole, on each slide block 21, correspondence offers screw, and lead 23 is joined with this via clearance corresponding
Close, and threaded with screw, each lead 23 is respectively arranged with a spring 24, and 24, spring
In propping up between bracer 220 and slide block 21 so that a bracer 220, circuit board pallet 22 and circuit board are vertically
There is on direction certain activity space.
For improving the automaticity of device, drawer type feed mechanism 20 also has turnover cylinder 25, this turnover
Cylinder 25 one end is relatively fixed with shielded box housing 10, is positioned at the end of the piston rod of turnover cylinder 25 other end
Portion is relatively fixed with slide block 21.Drawer can be realized respectively by controlling the flexible of the piston rod of turnover cylinder 25
Delivering from godown and warehouse entry action of formula feed mechanism 20.
It addition, remove composition described above part, drawer type feed mechanism 20 specifically also includes sealing plate 200, floats
Dynamic joint 26 and sealing plate fix seat 27, sealing plate 200 and the opening size on shielded box housing 10 sidewall
Coupling, can realize the aesthetic property of the outward appearance of whole device after warehouse entry.Sealing plate is fixed seat 27 and is smaller in size than
Sealing plate 200, floating junction 26 is fixed on sealing plate and fixes the side of seat 27, and sealing plate 200 is fixed on close
The opposite side of seat 27 fixed by shrouding, and sealing plate is fixed and is arranged with a circle sealing ring, warehouse entry on the outer ring of seat 27
After putting in place, sealing plate 200 and shielded box housing 10 sidewall can realize good sealing.
Shown in Fig. 6, lift fixture 30 also includes that upper needle plate relatively-stationary with upper needle plate 31 is fixed
Seat 33 and the relatively-stationary lower needle plate of lower needle plate 32 fix seat 34, lifting guide pillar 35 and compression spring 36,
Lifting guide pillar 35 is fixed seat 33 through upper needle plate and is fixed on lower needle plate and fixes on seat 34, lifting guide pillar 35
Stub end abut upper needle plate and fix the upper surface of seat 33；Compression spring 36 be sheathed on lifting guide pillar 35 and
The two ends elastic above needle plate that abuts respectively fixes seat 33 and lower needle plate 32；Lift cylinder 300 and shielded box housing
10 are relatively fixed, and the piston rod of lift cylinder 300 fixes seat 33 and piston rod through upper needle plate from bottom to top
Seat 33 fixed by end elastic needle plate that abuts under the effect of compression spring 36.Upper needle plate fix seat 33 and under
Needle plate is fixed seat 34 and is separately fixed at needle plate 31 upper surface and lower needle plate 32 lower surface, and seat fixed by upper needle plate
The two ends on the top of 33 are additionally provided with raises block 331, raises at two and is fixed with on block 331 for protection
The upper needle plate protective cover 332 of needle plate 31.
Preferably, the lower needle plate of lift fixture 30 is fixed seat 34 and is maintained static, and only goes up needle plate and fixes seat 33
Move up and down with the stretching of piston rod of lift cylinder 300 under the thrust of compression spring 36.Lifting guide pillar
The stub end of 35 and upper needle plate are fixed and are additionally provided with linear bearing 37 between seat 33, and linear bearing 37 is fixed on
Needle plate is fixed on seat 33, and lifting guide pillar 35 is arranged in linear bearing 37, fixes on seat 33 at upper needle plate
During lower motion, lifting guide pillar 35 moves up and down relative to linear bearing 37.
It is further fixed on warehouse entry to level sensor S1 near outside bottom guide rail 11, close bottom guide rail 11
Inner side is further fixed on the level sensor S2 that delivers from godown, and is respectively used to detect the position of slide block 21, to judge drawer type
The warehouse entry of circuit board and the state that delivers from godown on feed mechanism 20.
This uses source of the gas is turnover cylinder 25 and lift cylinder 300 as power, actuator, passes in and out gas
Cylinder 25 is responsible for circuit board and is sent into and send, and lift cylinder 300 is responsible for the circuit board profit providing power to make to be admitted to
With upper and lower needle plate pressing.When circuit board pallet 22 and circuit board thereon are sent to upper needle plate 31, lower needle plate
Position between 32, the warehouse entry in outside to level sensor S1 i.e. senses that warehouse entry puts in place, and control centre i.e. controls
The piston rod of lift cylinder 300 shrinks, and first upper needle plate 31 withstands circuit board, continues along with piston rod shrinks
Shrinking, upper needle plate 31 promotes circuit board, circuit board pallet 22 and bracer 220 needle plate 32 the most down to lean on
Closely, in the process, the decrement of spring 24 and compression spring 36 is gradually increased, and circuit board is by smoothly
Being urged to the lower needle plate 32 with bottom abut, finally, circuit board is held on by upper needle plate 31, lower needle plate 32
Wherein and in electrical contact, control centre i.e. starts detection instruction and starts detection.
Have employed drawer type design owing to putting the feed mechanism of circuit board, when taking/put circuit board, circuit board pallet can
Extend to outside the casing of shielded box, no matter at which orientation taking laying board can accomplish without visual angle blind zone, energy
Reduce the damage plate caused during taking laying board to greatest extent；It addition, the present invention use source of the gas as power,
Actuator is turnover cylinder and lift cylinder, and turnover cylinder is responsible for the feeding of circuit board and sends, lifting air
Cylinder is responsible for upper and lower needle plate pressing circuit board, accurate positioning.
Shown in Fig. 7, present invention also offers the circuit board of a kind of foregoing circuit plate pneumatic test shielded box
Method of testing, including:
S01, control centre initialize, i.e. control centre controls the piston rod elongation of lift cylinder 300, and takes out
Drawer formula feed mechanism 20 ejects (i.e. delivering from godown)；
S02, loading circuit plate, will put into the circuit board pallet 22 of drawer type feed mechanism 20 by circuit board；
S03, drawer type feed mechanism 20 warehouse entry, i.e. circuit board enter lift fixture with circuit board pallet 22
Between upper needle plate 31 and the lower needle plate 32 of 30；
After S04, warehouse entry put in place, lift cylinder 300 piston rod shrinks, and upper needle plate 31 and lower needle plate 32 are by electricity
Road board clamping, detection starts；
S05, detection terminate, and the piston rod elongation of lift cylinder 300, drawer type feed mechanism 20 ejects；
S06, taking-up circuit board, repeat step S02.
The design has manually and automatically two kinds of working methods of pattern, can lead to according to concrete use environment during use
Cross switching switch to switch over.Judge respectively to take out by warehouse entry to level sensor S1, the level sensor S2 that delivers from godown
The warehouse entry of drawer formula feed mechanism 20 and the state that delivers from godown, then control centre is according to the sensor signal received certainly
The retracted position of the dynamic piston rod controlling lift cylinder 300.When step S03 perform exceed Preset Time (as
After 2s), control centre does not receives warehouse entry yet and puts in place signal to the warehouse entry of level sensor S1, and control centre is then controlled
Drawer type feed mechanism 20 processed ejects, circuit board of reloading.This measure is intended under manual work pattern prevent folder
Hands, in automatic mode, owing to without artificial participation, this pattern ceases to be in force automatically.Wherein, drawer type send
Deliver from godown and the warehouse entry of material mechanism 20 are realized by the expanding-contracting action of the piston rod of turnover cylinder 25.
Under manual work pattern, the step of the loading circuit plate in step S02 is by completing manually, then
Can control to pass in and out cylinder 25 by operation button K (such as Fig. 3) on operation shield tank shell 10 to work,
Make drawer type feed mechanism 20 warehouse entry.
Automatic operation mode, full name participates in without artificial, and the step of the loading circuit plate in step S02 is by machine
Tool hands completes, and has loaded signal and has been sent by mechanical hand, and control centre is according to the mechanical hand signal control received
System turnover cylinder 25 works, drawer type feed mechanism 20 warehouse entry.Under this pattern, step S02 and step S06
Completed by mechanical hand, circuit board pallet 22 is provided with the circuit board for testing circuit plate laying state and passes
Sensor, control centre is according to the feedback signal of circuit board sensors and taking out that the level sensor S2 that delivers from godown detects
The state that delivers from godown of drawer formula feed mechanism 20 controls loading and the taking-up action of mechanical hand.The most only put in place delivering from godown
Sensor S2 detects that drawer type feed mechanism 20 is in when delivering from godown state, and mechanical hand just carries out loading or unloading operation.
Under automatic operation mode, when drawer type feed mechanism 20 delivers from godown, and without circuit on circuit board pallet 22
Plate, then decision circuitry plate unloaded or load not in place, mechanical hand loading circuit plate；When drawer type feeder
Structure 20 delivers from godown, and has circuit board on circuit board pallet 22, then mechanical hand takes out circuit board.In this mode,
Take/put circuit board to be all automatically performed by mechanical hand, all sent by test platform into and out of storehouse instruction and test instruction,
Overall process is all completed by platform courses, manually without interfering.
The above is only the detailed description of the invention of the application, it is noted that common for the art
For technical staff, on the premise of without departing from the application principle, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as the protection domain of the application.
Claims (10)
1. a circuit board pneumatic test shielded box, it is characterised in that include the shielded box of a sidewall opening
Housing (10), it is located at the drawer type feed mechanism (20) of the opening part of described shielded box housing (10) and sets
Lift fixture (30) in described shielded box housing (10), described drawer type feed mechanism (20) is wrapped
The slide block (21) including two block gaps and the circuit board pallet (22) being fixed on two described slide blocks (21),
The guide rail (11) guiding described slide block (21) to slide is offered in described shielded box housing (10)；Described liter
Fall formula fixture (30) includes the upper needle plate (31) being oppositely arranged and lower needle plate (32) and is used for driving institute
State needle plate (31) and described lower needle plate (32) near with the lift cylinder (300) separated；Wherein, electricity
Road plate sends into described upper pin with described circuit board pallet (22) after being placed on circuit board pallet (22)
Between plate (31) and described lower needle plate (32), described lift cylinder (300) drives described upper needle plate (31)
With described lower needle plate (32) clamping close to each other circuit board and therewith conducting test.
Circuit board the most according to claim 1 pneumatic test shielded box, it is characterised in that described drawer
Formula feed mechanism (20) also includes two bracers (220), and the upper each connection of each described slide block (21) has
A bracer (220) described in one, and described bracer (220) is detachable with described circuit board pallet (22)
Ground connects.
Circuit board the most according to claim 2 pneumatic test shielded box, it is characterised in that described drawer
Formula feed mechanism (20) also includes lead (23) and the spring (24) with stub end, each described
Bracer (220) two ends are equipped with a described lead (23) the most actively, and described lead (23) depends on
Secondary it is fixed on described slide block (21) after described bracer (220), described spring (24).
Circuit board the most according to claim 3 pneumatic test shielded box, it is characterised in that described drawer
Formula feed mechanism (20) also includes passing in and out cylinder (25), described turnover cylinder (25) one end and described shielding
Tank shell (10) is relatively fixed, and the piston rod of described turnover cylinder (25) is relative with described slide block (21)
Fixing.
Circuit board the most according to claim 3 pneumatic test shielded box, it is characterised in that described lifting
Formula fixture (30) also includes fixing seat (33) and institute with the described relatively-stationary upper needle plate of upper needle plate (31)
State the relatively-stationary lower needle plate of lower needle plate (32) and fix seat (34), lifting guide pillar (35) and compression spring (36),
Described lifting guide pillar (35) is fixed seat (33) through described upper needle plate and is fixed on described lower needle plate and fixes seat
(34), on, the stub end of described lifting guide pillar (35) abuts described upper needle plate and fixes the upper table of seat (33)
Face；Described compression spring (36) is sheathed on described lifting guide pillar (35), and above and two ends elasticity respectively abuts institute
State needle plate and fix seat (33) and described lower needle plate (32)；Described lift cylinder (300) and described shielding
Tank shell (10) is relatively fixed, and the piston rod of described lift cylinder (300) is from bottom to top through described upper pin
The end of seat (33) and its piston rod elastic abutting institute under the effect of described compression spring (36) fixed by plate
State needle plate and fix seat (33).
Circuit board the most according to claim 5 pneumatic test shielded box, it is characterised in that described lifting
The stub end of guide rod (35) and described upper needle plate are fixed and are additionally provided with linear bearing (37), institute between seat (33)
State lifting guide pillar (35) to be arranged in described linear bearing (37).
7. according to the arbitrary described circuit board pneumatic test shielded box of claim 1-6, it is characterised in that also
Including being separately fixed at that described guide rail (11) is upper, warehouse entry near outside to level sensor (S1) and close
The level sensor that delivers from godown (S2) of inner side.
8. the circuit board testing side using claim 1-7 arbitrary described circuit board pneumatic test shielded box
Method, it is characterised in that including:
S01, control centre initialize, i.e. control centre controls the piston rod elongation of lift cylinder (300),
And drawer type feed mechanism (20) ejects；
S02, loading circuit plate, will put into the circuit board pallet (22) of drawer type feed mechanism (20) by circuit board；
S03, drawer type feed mechanism (20) warehouse entry, i.e. circuit board enter lifting with circuit board pallet (22)
Between upper needle plate (31) and the lower needle plate (32) of formula fixture (30)；
After S04, warehouse entry put in place, lift cylinder (300) piston rod shrinks, upper needle plate (31) and lower needle plate
(32) being clamped by circuit board, detection starts；
S05, detection terminate, the piston rod elongation of lift cylinder (300), drawer type feed mechanism (20)
Eject；
S06, taking-up circuit board, repeat step S02.
Circuit board detection method the most according to claim 8, it is characterised in that described step S02 and
Described step S06 is completed by mechanical hand, and described circuit board pallet (22) is provided with for testing circuit
The circuit board sensors of plate laying state, control centre is according to the feedback signal of circuit board sensors and drawer type
The state that delivers from godown of feed mechanism (20) controls loading and the taking-up action of mechanical hand.
Circuit board detection method the most according to claim 8, it is characterised in that when described step S03
After execution exceedes Preset Time, control centre does not receives warehouse entry yet and puts in place letter to the warehouse entry of level sensor (S1)
Number, control centre then controls drawer type feed mechanism (20) and ejects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289452.5A CN105974298B (en) | 2016-05-04 | 2016-05-04 | Circuit board pneumatically tests shielded box and circuit board detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289452.5A CN105974298B (en) | 2016-05-04 | 2016-05-04 | Circuit board pneumatically tests shielded box and circuit board detection method |
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| Publication Number | Publication Date |
|---|---|
| CN105974298A true CN105974298A (en) | 2016-09-28 |
| CN105974298B CN105974298B (en) | 2019-03-15 |
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| CN201610289452.5A Active CN105974298B (en) | 2016-05-04 | 2016-05-04 | Circuit board pneumatically tests shielded box and circuit board detection method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597258A (en) * | 2016-12-22 | 2017-04-26 | 珠海市精实测控技术有限公司 | Drawer type PCB test clamp |
| CN107367684A (en) * | 2017-09-04 | 2017-11-21 | 歌尔股份有限公司 | Layout PCBA test devices and method of testing |
| CN107748310A (en) * | 2017-11-23 | 2018-03-02 | 江苏富联通讯技术有限公司 | A kind of functional test shielding case body |
| CN107966594A (en) * | 2017-11-23 | 2018-04-27 | 江苏富联通讯技术有限公司 | A kind of functional test shielded box |
| CN108872757A (en) * | 2018-03-12 | 2018-11-23 | 中国电力科学研究院有限公司 | Drawer type Local Communication Module examines and determine pallet, calibrating tray set and detecting box |
| CN109116058A (en) * | 2018-08-28 | 2019-01-01 | 慈溪市三佩机械有限公司 | A kind of engine throttle door cover plate circuit on-off test equipment |
| CN109186751A (en) * | 2018-08-29 | 2019-01-11 | 苏州岸肯电子科技有限公司 | A kind of silencer box of drawer automatic door structure |
| CN109640238A (en) * | 2018-12-10 | 2019-04-16 | 苏州市精创测控技术有限公司 | A kind of automatic acoustics shielded box of drawer type |
| CN110456109A (en) * | 2019-08-22 | 2019-11-15 | 珠海市运泰利自动化设备有限公司 | A kind of novel test equipment |
| CN112067972A (en) * | 2020-08-17 | 2020-12-11 | 容泰半导体(江苏)有限公司 | Integrated circuit detector |
| CN112110165A (en) * | 2020-09-25 | 2020-12-22 | 苏州富强科技有限公司 | Drawing type tray positioning carrying platform |
| CN112147485A (en) * | 2020-09-15 | 2020-12-29 | 南京静春星电子商务有限公司 | Energy-conserving detection device of circuit board break-make of inside electronic product design of TV set |
| CN112415466A (en) * | 2020-11-03 | 2021-02-26 | 国网辽宁省电力有限公司营销服务中心 | Pneumatic shielding cabinet for electric energy meter calibration |
| CN114414982A (en) * | 2021-12-23 | 2022-04-29 | 珠海妙存科技有限公司 | Chip testing machine and method |
| CN115420923A (en) * | 2022-10-31 | 2022-12-02 | 博坤机电（苏州）有限公司 | Double-station shielding box |
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| CN106597258A (en) * | 2016-12-22 | 2017-04-26 | 珠海市精实测控技术有限公司 | Drawer type PCB test clamp |
| CN106597258B (en) * | 2016-12-22 | 2023-03-21 | 珠海精实测控技术股份有限公司 | Drawer type PCB test fixture |
| CN107367684A (en) * | 2017-09-04 | 2017-11-21 | 歌尔股份有限公司 | Layout PCBA test devices and method of testing |
| CN107367684B (en) * | 2017-09-04 | 2023-10-10 | 歌尔科技有限公司 | Splice PCBA testing device and method |
| CN107748310A (en) * | 2017-11-23 | 2018-03-02 | 江苏富联通讯技术有限公司 | A kind of functional test shielding case body |
| CN107966594A (en) * | 2017-11-23 | 2018-04-27 | 江苏富联通讯技术有限公司 | A kind of functional test shielded box |
| CN108872757A (en) * | 2018-03-12 | 2018-11-23 | 中国电力科学研究院有限公司 | Drawer type Local Communication Module examines and determine pallet, calibrating tray set and detecting box |
| CN108872757B (en) * | 2018-03-12 | 2022-03-04 | 中国电力科学研究院有限公司 | Drawer type local communication module verification tray, verification tray set and detection cabinet |
| CN109116058A (en) * | 2018-08-28 | 2019-01-01 | 慈溪市三佩机械有限公司 | A kind of engine throttle door cover plate circuit on-off test equipment |
| CN109186751A (en) * | 2018-08-29 | 2019-01-11 | 苏州岸肯电子科技有限公司 | A kind of silencer box of drawer automatic door structure |
| CN109640238A (en) * | 2018-12-10 | 2019-04-16 | 苏州市精创测控技术有限公司 | A kind of automatic acoustics shielded box of drawer type |
| CN110456109A (en) * | 2019-08-22 | 2019-11-15 | 珠海市运泰利自动化设备有限公司 | A kind of novel test equipment |
| CN112067972A (en) * | 2020-08-17 | 2020-12-11 | 容泰半导体(江苏)有限公司 | Integrated circuit detector |
| CN112147485A (en) * | 2020-09-15 | 2020-12-29 | 南京静春星电子商务有限公司 | Energy-conserving detection device of circuit board break-make of inside electronic product design of TV set |
| CN112110165A (en) * | 2020-09-25 | 2020-12-22 | 苏州富强科技有限公司 | Drawing type tray positioning carrying platform |
| CN112415466B (en) * | 2020-11-03 | 2022-09-02 | 国网辽宁省电力有限公司营销服务中心 | Pneumatic shielding cabinet for electric energy meter calibration |
| CN112415466A (en) * | 2020-11-03 | 2021-02-26 | 国网辽宁省电力有限公司营销服务中心 | Pneumatic shielding cabinet for electric energy meter calibration |
| CN114414982A (en) * | 2021-12-23 | 2022-04-29 | 珠海妙存科技有限公司 | Chip testing machine and method |
| CN115420923A (en) * | 2022-10-31 | 2022-12-02 | 博坤机电（苏州）有限公司 | Double-station shielding box |
| CN115420923B (en) * | 2022-10-31 | 2023-04-07 | 博坤机电（苏州）有限公司 | Double-station shielding box |
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