CN105974298B - Circuit board pneumatically tests shielded box and circuit board detection method - Google Patents
Circuit board pneumatically tests shielded box and circuit board detection method Download PDFInfo
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- CN105974298B CN105974298B CN201610289452.5A CN201610289452A CN105974298B CN 105974298 B CN105974298 B CN 105974298B CN 201610289452 A CN201610289452 A CN 201610289452A CN 105974298 B CN105974298 B CN 105974298B
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title claims description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 239000007787 solid Substances 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 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
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- 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 kind of circuit boards pneumatically to test shielded box, shielding tank shell including a sidewall opening, the drawer type feeding mechanism set on the opening for shielding tank shell and the lift fixture in shielding tank shell, drawer type feeding mechanism includes the sliding block of two block gaps and the circuit sheet tray being fixed on two sliding blocks, shields the guide rail that guide shoe sliding is offered in tank shell；Lift fixture includes the upper needle plate being oppositely arranged and lower needle plate and for driving upper needle plate and lower needle plate close with isolated lifting cylinder；Wherein, circuit board is sent between upper needle plate and lower needle plate after being placed on circuit sheet tray with circuit sheet tray, and lifting cylinder drives upper needle plate and lower needle plate clamping circuit board close to each other and is connected therewith and tested.No matter the present invention in which orientation taking laying board can accomplish no visual angle blind zone, and damage plate, accurate positioning caused by capable of reducing to the maximum extent during taking laying board, easy to operate, testing efficiency is high.
Description
Technical field
The present invention relates to circuit board testing technical fields more particularly to a kind of circuit board pneumatically to test shielded box and circuit board
Test method.
Background technique
Test fixture common at present is manual press-down type (i.e. rotary, such as Fig. 1) and lift chair mechanisms (as schemed
2), both test fixtures be all respectively by with conductive pin upper needle plate and lower needle plate be fixed on fixture upper part 1 and under
On part 2, need when test manually accurately be placed on tested PCB (Printed Circuit Board, printed circuit board) plate
Between upper needle plate and lower needle plate, but since the space between upper and lower needle plate is limited by own institutions, space hand-manipulated is narrow
It is small, generally about only 35mm.
The sight that upper needle plate mechanism can block worker when picking and placing pcb board leads to have operation vision dead zone, when so that putting plate
Be difficult to put standard, when often result in positioning and be not allowed to be difficult to be found and cause damage plate；Secondly, current linkage need to design largely
Guide pin is assisted, guide pin helps that worker is guided more easily to put plate, but guide pin also easily scratches PCB component when taking plate
And cause damage plate；It also needs shielded box to push fastening in addition, worker is packed into pcb board after fixture or presses button many times,
Cause the operation labor intensity of worker very big, is easy fatigue and influences testing efficiency.Meanwhile to improve efficiency per capita, machine is used
It is trend of the times that tool hand, which replaces the artificial Full automatic penumatic test for carrying out pcb board, and the common pneumatic test panel of these types at present
It covers case and is not suitable for full-automatic testing.
Summary of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of accurate positioning, rapid wear plate, testing efficiency be not high
Circuit board pneumatically tests the test method of shielded box and circuit board.
In order to achieve the above purpose, present invention employs the following technical solutions:
A kind of circuit board pneumatically tests shielded box, and shielding tank shell including a sidewall opening is set to the shielded box
The drawer type feeding mechanism of the opening of shell and the lift fixture in the shielding tank shell, the drawer type feeding
Mechanism includes the sliding block of two block gaps and the circuit sheet tray that is fixed on two sliding blocks, is opened up in the shielding tank shell
There is the guide rail for guiding the sliding block sliding；The lift fixture includes the upper needle plate being oppositely arranged and lower needle plate and for driving
It moves the upper needle plate and the lower needle plate is close with isolated lifting cylinder；Wherein, circuit board is being placed on circuit sheet tray
It is sent between the upper needle plate and the lower needle plate after upper with the circuit sheet tray, the lifting cylinder drives the upper needle plate
It is tested with lower needle plate clamping circuit board close to each other and therewith conducting.
Further, the drawer type feeding mechanism further includes two supporting blocks, is respectively connected with one on each sliding block
A supporting block, and the supporting block and the circuit sheet tray are detachably connected.
Further, the drawer type feeding mechanism further includes the guide post and spring with stub end, each branch
Bracer both ends are respectively actively equipped with the guide post, after the guide post sequentially passes through the supporting block, the spring
It fixes on the slide block.
Further, the drawer type feeding mechanism further includes inlet and outlet cylinder, described inlet and outlet cylinder one end and the shielding
Tank shell is relatively fixed, and the piston rod of the inlet and outlet cylinder and the sliding block are relatively fixed.
Further, the lift fixture further includes and the relatively-stationary upper needle plate fixing seat of the upper needle plate and institute
The relatively-stationary lower needle plate fixing seat of lower needle plate, lifting guide pillar and compressed spring are stated, the lifting guide pillar passes through the upper needle plate
Fixing seat is simultaneously fixed in the lower needle plate fixing seat, and the stub end of the lifting guide pillar abuts the upper of the upper needle plate fixing seat
Surface；The compressed spring is sheathed on the lifting guide pillar and elasticity abuts the upper needle plate fixing seat and described respectively at both ends
Lower needle plate；The lifting cylinder and the shielding tank shell are relatively fixed, and the piston rod of the lifting cylinder passes through from bottom to top
The end of the upper needle plate fixing seat and its piston rod elasticity under the action of the compressed spring abuts the upper needle plate and fixes
Seat.
Further, it is additionally provided with linear bearing between the stub end of the lifting guide pillar and the upper needle plate fixing seat, institute
Lifting guide pillar is stated to be arranged in the linear bearing.
Further, it further includes being separately fixed on the guide rail, close to outer that the circuit board, which pneumatically tests shielded box,
The export sensors in place of the warehouse entry sensors in place of side and close inside.
Another object of the present invention is to provide the circuit board detection method that a kind of foregoing circuit plate pneumatically tests shielded box,
Include:
S01, control centre's initialization, i.e. the piston rod elongation of control centre's control lifting cylinder and drawer type feeder
Structure pop-up；
Circuit board is put into the circuit sheet tray of drawer type feeding mechanism by S02, loading circuit plate；
S03, drawer type feeding mechanism warehouse entry, i.e. circuit board enter the upper needle plate of lift fixture under with circuit sheet tray
Between needle plate；
S04, warehouse entry in place after, lifting cylinder piston rod shrink, by circuit board clamping, detection is opened for upper needle plate and lower needle plate
Begin；
S05, detection terminate, the piston rod elongation of lifting cylinder, the pop-up of drawer type feeding mechanism；
S06, circuit board is taken out, repeats step S02.
Further, the step S02 and the step S06 are completed by manipulator, are arranged on the circuit sheet tray
There are a circuit board sensors for detection circuit board placement status, control centre is according to the feedback signal and pumping of circuit board sensors
The loading of the export state control manipulator of drawer formula feeding mechanism and taking-up act.
Further, after the step S03, which is executed, is more than preset time, control centre does not receive warehouse entry yet and senses in place
Signal, control centre then control the pop-up of drawer type feeding mechanism to the warehouse entry of device in place.
The present invention is designed due to putting the feeding mechanism of circuit board using drawer type, circuit sheet tray when taking/put circuit board
It may extend into outside the cabinet of shielded box, no matter which orientation taking laying board can accomplish no visual angle blind zone at, it can be to greatest extent
Plate is damaged caused by reducing taking laying board in the process in ground；In addition, the present invention using gas source as power, accurate positioning, executing agency is
Inlet and outlet cylinder and lifting cylinder, inlet and outlet cylinder are responsible for the feeding and submitting of circuit board, and lifting cylinder is responsible for upper and lower needle plate pressing electricity
Road plate can be automatically controlled by combining control circuit to realize, easy to operate, testing efficiency is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rotary test fixture of the prior art.
Fig. 2 is the structural schematic diagram of the lift test fixture of the prior art.
Fig. 3 is that the circuit board of the embodiment of the present invention pneumatically tests the export status diagram of shielded box.
Fig. 4 is that the circuit board of the embodiment of the present invention pneumatically tests the schematic diagram of internal structure of shielded box.
Fig. 5 is that the circuit board of the embodiment of the present invention pneumatically tests the partial structure diagram of shielded box.
Fig. 6 is the structural decomposition 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.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Refering to Fig. 3 and Fig. 4, circuit board of the invention pneumatically tests the shielded box that shielding case includes one of sidewall opening
Shell 10, the drawer type feeding mechanism 20 for being mounted on the opening for shielding tank shell 10 and the liter being mounted in shielding tank shell 10
Drop formula fixture 30, as shown in figure 5, wherein drawer type feeding mechanism 20 includes the sliding block 21 of two block gaps and is fixed on two sliding blocks
Circuit sheet tray 22 on 21 shields the guide rail 11 that the sliding of guide shoe 21 is offered in tank shell 10；As shown in fig. 6, lifting
Formula fixture 30 includes the upper needle plate 31 that is oppositely arranged and lower needle plate 32 and for driving upper needle plate 31 and lower needle plate 32 mutually to lean on
Closely with isolated lifting cylinder 300；Circuit board for test be placed on circuit sheet tray 22 after with circuit sheet tray 22
In feeding between needle plate 31 and lower needle plate 32, lifting cylinder 300 drives upper needle plate 31 and the clamping circuit close to each other of lower needle plate 32
Plate and therewith conducting are tested.
If the shielding tank shell 10 of Fig. 3, the present embodiment have the main casing 11 of lower part and the screening cover 12 on top, the two exists
Side far from opening is combined by the way of pivot joint, is removably being assembled in one by the way of fastening close to open side
It rises, when needing to open shielded box, releases being fastened and connected close to open side, then rotate screening cover 12 upward.
Such as Fig. 5, drawer type feeding mechanism 20 further includes the supporting block 220 of two strips disposed in parallel, each sliding block
A supporting block 220 is respectively connected on 21, and supporting block 220 and circuit sheet tray 22 are detachably connected, it can be easily
Realize dismounting, the replacement of circuit sheet tray 22.Specifically, the middle part of each supporting block 220 is equipped with a groove, in each groove
Equipped with a magnet, the both ends of circuit sheet tray 22 are formed and convex block, the bottom of each convex block are also provided with magnet, when circuit plate support
After disk 22 is placed into the supporting block 220 at both ends, convex block is embedded in corresponding groove, and by firmly by way of magnetic suck
Ground is located in supporting block 220.
In addition, drawer type feeding mechanism 20 further includes 4 guide post 23 and 4 springs 24, Mei Gezhi with stub end
220 both ends of bracer are respectively actively equipped with a guide post 23, and the stub end of guide post 23 is made to be located at 220 top of supporting block to limit
Its abjection is made, and 23 other end of guide post is fixed on sliding block 21 after sequentially passing through supporting block 220, spring 24.It is preferably directed column
23 be bolt, corresponding in each supporting block 220 to offer through-hole, corresponding on each sliding block 21 to offer screw hole, guide post 23 with
Corresponding via clearance cooperation, and be threadedly coupled with screw hole, a spring 24, and spring are respectively arranged in each guide post 23
24 between supporting block 220 and sliding block 21, so that supporting block 220, circuit sheet tray 22 and circuit board have in vertical direction
There is certain activity space.
For the degree of automation for improving device, drawer type feeding mechanism 20 also has inlet and outlet cylinder 25, the inlet and outlet cylinder 25
One end and shielding tank shell 10 are relatively fixed, relatively solid positioned at the end of the piston rod of 25 other end of inlet and outlet cylinder and sliding block 21
It is fixed.It is dynamic by the flexible export that can realize drawer type feeding mechanism 20 respectively and warehouse entry that control the piston rod of inlet and outlet cylinder 25
Make.
In addition, removing composition described above part, drawer type feeding mechanism 20 specifically further includes sealing plate 200, floating junction 26
With sealing plate fixing seat 27, sealing plate 200 is matched with the opening size on shielding 10 side wall of tank shell, can be realized after warehouse entry
The aesthetics of the appearance of whole device.27 size of sealing plate fixing seat is less than sealing plate 200, and floating junction 26 is fixed on sealing plate
The side of fixing seat 27, sealing plate 200 are fixed on the other side of sealing plate fixing seat 27, cover on the outer ring of sealing plate fixing seat 27
Equipped with one circle sealing ring, warehouse entry in place after, sealing plate 200 and shielding 10 side wall of tank shell good sealing may be implemented.
As shown in connection with fig. 6, lift fixture 30 further includes with the relatively-stationary upper needle plate fixing seat 33 of upper needle plate 31, under
The relatively-stationary lower needle plate fixing seat 34 of needle plate 32, lifting guide pillar 35 and compressed spring 36, lifting guide pillar 35 are solid across upper needle plate
Reservation 33 is simultaneously fixed in lower needle plate fixing seat 34, and the stub end of lifting guide pillar 35 abuts the upper surface of upper needle plate fixing seat 33；
Compressed spring 36, which is sheathed on lifting guide pillar 35, and both ends are elastic respectively abuts upper needle plate fixing seat 33 and lower needle plate 32；Lifting air
Cylinder 300 and shielding tank shell 10 are relatively fixed, and the piston rod of lifting cylinder 300 passes through needle plate fixing seat 33 from bottom to top and lives
The end of stopper rod elasticity under the action of compressed spring 36 abuts upper needle plate fixing seat 33.Upper needle plate fixing seat 33 and lower needle plate are solid
Reservation 34 is separately fixed at 31 upper surface of needle plate and lower 32 lower surface of needle plate, and the both ends on the top of upper needle plate fixing seat 33 are also set
It is equipped with and raises block 331, the upper needle plate protective cover 332 being fixed on block 331 for protecting upper needle plate 31 is raised at two.
Preferably, the lower needle plate fixing seat 34 of lift fixture 30 is fixed, and only upper needle plate fixing seat 33 is in compression bullet
It moves up and down under the thrust of spring 36 with the flexible of the piston rod of lifting cylinder 300.The stub end of lifting guide pillar 35 and upper needle plate
Linear bearing 37 is additionally provided between fixing seat 33, linear bearing 37 is fixed in needle plate fixing seat 33, and lifting guide pillar 35 is worn
In in linear bearing 37, during upper needle plate fixing seat 33 moves up and down, lifting guide pillar 35 is relative on linear bearing 37
Lower movement.
It is further fixed on warehouse entry sensors in place S1 close to outside in 11 bottom of guide rail, it is also solid close to inside in 11 bottom of guide rail
Surely there is export sensors in place S2, the position of detection sliding block 21 is respectively used to, to judge circuit board on drawer type feeding mechanism 20
Warehouse entry and export state.
For this hair using gas source as power, executing agency is inlet and outlet cylinder 25 and lifting cylinder 300, and inlet and outlet cylinder 25 is responsible for
Circuit board is sent into and is sent out, and lifting cylinder 300, which is responsible for offer power, presses the circuit board being admitted to using upper and lower needle plate.When
Circuit sheet tray 22 and circuit board thereon are sent to the position between needle plate 31, lower needle plate 32, and the warehouse entry in outside passes in place
Sensor S1 senses warehouse entry in place, and control centre is the piston rod contraction for controlling lifting cylinder 300, and upper needle plate 31 is withstood first
Circuit board, as piston rod contraction continues to shrink, upper needle plate 31 pushes circuit board, circuit sheet tray 22 and supporting block 220 together
Needle plate 32 is close downward, and in the process, the decrement of spring 24 and compressed spring 36 is gradually increased, and circuit board is smoothly pushed away
It is depressed into and is abutted with the lower needle plate 32 of lower part, finally, circuit board is held on wherein and therewith that electricity connects by upper needle plate 31, lower needle plate 32
Touching, control centre start detection instruction and start to detect.
Feeding mechanism due to putting circuit board is designed using drawer type, and circuit sheet tray is extensible when taking/put circuit board
To outside the cabinet of shielded box, no matter which orientation taking laying board can accomplish no visual angle blind zone at, can reduce to the maximum extent
Plate is damaged caused by during taking laying board；In addition, the present invention uses gas source as power, executing agency is inlet and outlet cylinder and lifting air
Cylinder, inlet and outlet cylinder are responsible for the feeding and submitting of circuit board, and lifting cylinder is responsible for upper and lower needle plate pressing circuit board, accurate positioning.
As shown in connection with fig. 7, the present invention also provides the circuit board testing sides that a kind of foregoing circuit plate pneumatically tests shielded box
Method, comprising:
S01, control centre's initialization, i.e. the piston rod elongation and drawer type feeding of control centre's control lifting cylinder 300
Mechanism 20 pops up (i.e. export)；
Circuit board is put into the circuit sheet tray 22 of drawer type feeding mechanism 20 by S02, loading circuit plate；
S03,20 warehouse entry of drawer type feeding mechanism, i.e. circuit board enter the upper needle of lift fixture 30 with circuit sheet tray 22
Between plate 31 and lower needle plate 32；
S04, warehouse entry in place after, 300 piston rod of lifting cylinder is shunk, upper needle plate 31 and lower needle plate 32 by circuit board clamping,
Detection starts；
S05, detection terminate, and the piston rod elongation of lifting cylinder 300, drawer type feeding mechanism 20 pops up；
S06, circuit board is taken out, repeats step S02.
The design has manually and automatically two kinds of working methods of mode, and when use can pass through switching according to specific use environment
Switch switches over.Drawer type feeding mechanism 20 is judged respectively by warehouse entry sensors in place S1, export sensors in place S2
Warehouse entry and export state, then control centre automatically controls the piston rod of lifting cylinder 300 according to the sensor signal received
Retracted position.After step S03 execution is more than preset time (such as 2s), control centre does not receive warehouse entry sensors in place S1 yet
Warehouse entry signal in place, control centre then controls the pop-up of drawer type feeding mechanism 20, circuit board of reloading.This measure is intended to manually
Clamp hand is prevented under operating mode, in automatic mode, due to being not necessarily to artificial participation, which ceases to be in force automatically.Wherein, drawer type
The export and warehouse entry of feeding mechanism 20 are realized by the expanding-contracting action of the piston rod of inlet and outlet cylinder 25.
Under manual work pattern, by manually completing the step of loading circuit plate in step S02, then pass through operation
Shield the i.e. controllable work of inlet and outlet cylinder 25 of operation button K (such as Fig. 3) on tank shell 10, make drawer type feeding mechanism 20 into
Storehouse.
The step of automatic operation mode, full name are participated in without artificial, loading circuit plate in step S02 is complete by manipulator
At, it loading completion signal and is issued by manipulator, control centre works according to the manipulator signal control inlet and outlet cylinder 25 received,
20 warehouse entry of drawer type feeding mechanism.Under this mode, step S02 and step S06 are completed by manipulator, are set on circuit sheet tray 22
Be equipped with the circuit board sensors for detection circuit board placement status, control centre according to the feedback signals of circuit board sensors with
The loading of the export state control manipulator for the drawer type feeding mechanism 20 that export sensors in place S2 is detected and taking-up act.
I.e. only when export sensors in place S2 detects that drawer type feeding mechanism 20 is in export state, manipulator is just picked and placed
Operation.
Under automatic operation mode, then judge when 20 export of drawer type feeding mechanism, and on circuit sheet tray 22 without circuit board
Circuit board unloaded loads not in place, manipulator loading circuit plate；When 20 export of drawer type feeding mechanism, and circuit sheet tray
There is circuit board on 22, then manipulator takes out circuit board.In this mode, take/put circuit board to be all automatically performed by manipulator, into,
Export instruction and test instruction are all issued by test platform, and overall process is all completed by platform courses, artificial without interference.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (9)
1. a kind of circuit board pneumatically tests shielded box, which is characterized in that shielding tank shell (10) including a sidewall opening is set
In the drawer type feeding mechanism (20) of the opening of shielding tank shell (10) and in the shielding tank shell (10)
Lift fixture (30), the drawer type feeding mechanism (20) include the sliding block (21) of two block gaps and are fixed on two cunnings
Circuit sheet tray (22) on block (21), shielding tank shell (10) is interior to offer the guide rail for guiding sliding block (21) sliding
(11)；The lift fixture (30) includes the upper needle plate (31) being oppositely arranged and lower needle plate (32) and described for driving
Needle plate (31) and the lower needle plate (32) it is close with isolated lifting cylinder (300), it is relatively-stationary with the upper needle plate (31)
Upper needle plate fixing seat (33) and the relatively-stationary lower needle plate fixing seat (34) of the lower needle plate (32), lifting guide pillar (35) and pressure
Contracting spring (36), the lifting guide pillar (35) pass through the upper needle plate fixing seat (33) and are fixed on the lower needle plate fixing seat
(34) on, the stub end of the lifting guide pillar (35) abuts the upper surface of the upper needle plate fixing seat (33)；The compressed spring
(36) it is sheathed on the lifting guide pillar (35) and both ends difference elasticity abuts the upper needle plate fixing seat (33) and the knit stitch
Plate (32)；The lifting cylinder (300) and the shielding tank shell (10) are relatively fixed, the piston of the lifting cylinder (300)
Bar passes through the end of the upper needle plate fixing seat (33) and its piston rod under the action of the compressed spring (36) from bottom to top
Elasticity abuts the upper needle plate fixing seat (33)；The both ends on the top of the upper needle plate fixing seat (33), which are additionally provided with, raises block
(331), the upper needle plate protective cover (332) being fixed on block (331) for protecting the upper needle plate (31) is raised described in two；
Wherein, circuit board is sent into the upper needle plate (31) with the circuit sheet tray (22) after being placed on circuit sheet tray (22)
Between the lower needle plate (32), the lifting cylinder (300) drives the upper needle plate (31) and the lower needle plate (32) mutual
It is tested close to clamping circuit board and being connected therewith.
2. circuit board according to claim 1 pneumatically tests shielded box, which is characterized in that the drawer type feeding mechanism
(20) further include two supporting blocks (220), the supporting block (220), and institute are respectively connected on each sliding block (21)
It states supporting block (220) and the circuit sheet tray (22) is detachably connected.
3. circuit board according to claim 2 pneumatically tests shielded box, which is characterized in that the drawer type feeding mechanism
It (20) further include the guide post (23) and spring (24) with stub end, each supporting block (220) both ends are respectively actively worn
Equipped with a guide post (23), it is solid afterwards that the guide post (23) sequentially passes through the supporting block (220), the spring (24)
It is scheduled on the sliding block (21).
4. circuit board according to claim 3 pneumatically tests shielded box, which is characterized in that the drawer type feeding mechanism
It (20) further include inlet and outlet cylinder (25), described inlet and outlet cylinder (25) one end and the shielding tank shell (10) are relatively fixed, described
The piston rod of inlet and outlet cylinder (25) and the sliding block (21) are relatively fixed.
5. circuit board according to claim 1 pneumatically tests shielded box, which is characterized in that the lifting guide pillar (35) it is big
It is additionally provided with linear bearing (37) between head end and the upper needle plate fixing seat (33), the lifting guide pillar (35) is arranged in described straight
Spool is held in (37).
6. -5 any circuit boards pneumatically test shielded box according to claim 1, which is characterized in that further include fixing respectively
Warehouse entry sensors in place (S1) on the guide rail (11), close to outside and the export sensors in place (S2) close to inside.
7. a kind of circuit board detection method for pneumatically testing shielded box using any circuit board of claim 1-6, feature
It is, comprising:
S01, control centre's initialization, i.e. the piston rod elongation of control centre's control lifting cylinder (300) and drawer type feeder
Structure (20) pop-up；
Circuit board is put into the circuit sheet tray (22) of drawer type feeding mechanism (20) by S02, loading circuit plate；
S03, drawer type feeding mechanism (20) warehouse entry, i.e. circuit board enter the upper of lift fixture (30) with circuit sheet tray (22)
Between needle plate (31) and lower needle plate (32)；
S04, warehouse entry in place after, lifting cylinder (300) piston rod shrink, upper needle plate (31) and lower needle plate (32) press from both sides circuit board
Tightly, detection starts；
S05, detection terminate, the piston rod elongation of lifting cylinder (300), drawer type feeding mechanism (20) pop-up；
S06, circuit board is taken out, repeats step S02.
8. circuit board detection method according to claim 7, which is characterized in that the step S02 and the step S06 are equal
It is completed by manipulator, the circuit board sensors for detection circuit board placement status is provided on the circuit sheet tray (22),
Control centre controls manipulator according to the feedback signal of circuit board sensors and the export state of drawer type feeding mechanism (20)
It loads and is acted with taking-up.
9. circuit board detection method according to claim 7, which is characterized in that when the step S03 is executed more than default
After time, control centre does not receive the warehouse entry of warehouse entry sensors in place (S1) yet, and signal, control centre then control drawer type in place
Feeding mechanism (20) pop-up.
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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| CN105974298A CN105974298A (en) | 2016-09-28 |
| CN105974298B true CN105974298B (en) | 2019-03-15 |
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