CN115372790B - Electrical detection device and method - Google Patents
Electrical detection device and method Download PDFInfo
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- CN115372790B CN115372790B CN202210934821.7A CN202210934821A CN115372790B CN 115372790 B CN115372790 B CN 115372790B CN 202210934821 A CN202210934821 A CN 202210934821A CN 115372790 B CN115372790 B CN 115372790B
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- connecting block
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- substrate
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
- G01R1/06716—Elastic
- G01R1/06722—Spring-loaded
-
- 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
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention belongs to the technical field of electrical detection devices, and discloses an electrical detection device and method. The invention starts the driving device to work and drives the electric detection appliance and the connecting block to descend through the driving rod, the whole protective cover descends, the protective cover is firstly contacted with the top of the detection table, the connecting block extrudes the first spring to enable the first spring to have elasticity in the continuous descending process, meanwhile, the extrusion plates on two sides are driven to extrude downwards along the inside of the cavity, and meanwhile, the continuously descending extrusion plates extrude the air in the lower end of the cavity through the extrusion plug and blow the air towards the top of the substrate through the blow hole, so that dust accumulated on the substrate can be blown up.
Description
Technical Field
The invention belongs to the technical field of electrical detection devices, and particularly relates to an electrical detection device and method.
Background
The substrate refers to a copper clad laminate, and single-sided and double-sided printed boards are manufactured by selectively carrying out hole processing, electroless copper plating, electrolytic copper plating, etching, contact setting and other processes on a substrate material-copper clad laminate, so as to obtain a required circuit pattern.
In the prior art, most of electric detection of a substrate is carried out by a worker, so that a probe on an electric detection device is aligned with a contact on the substrate to be detected, and then the contact is tightly attached to the probe by pressing; in addition, the long-term substrate is stored in the warehouse, dust can be accumulated on the outer surface of the long-term substrate, a layer of dust film can be formed outside the contact, poor contact between the probe and the contact is easily caused during electric detection, and unstable electric connection is easily caused, so that the detection accuracy is influenced.
Disclosure of Invention
The present invention is directed to an electrical detection device and method, which solve the above-mentioned problems.
In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides an electric detection device and method, includes support frame, detection platform, base plate and dust scraping box, the top fixed mounting of support frame has drive arrangement, drive arrangement's bottom fixedly connected with actuating lever, the bottom fixedly connected with electric detection utensil of actuating lever, the bottom fixedly connected with connecting block of electric detection utensil, the outside fixed mounting of connecting block has the fixed plate, the bottom fixedly connected with first spring of fixed plate, the outside activity of connecting block has cup jointed the protection casing, the cavity has been seted up to the inside of protection casing, the inside fixed mounting of cavity has elasticity shrink button, the equal fixedly connected with in both sides of connecting block is located the inside stripper plate of cavity, the movable chamber has been seted up to the lower extreme of connecting block, the inside top fixedly connected with pressure sensor of movable chamber, the inside swing joint in movable chamber has the connecting plate, the middle part fixedly connected with probe of connecting plate, the outside fixed mounting of connecting block lower extreme has the installing frame, equal fixed mounting has the static dust removal board on two inner walls of protection casing.
Preferably, an air inlet communicated with the inside of the cavity is formed in the outer portion of the protective cover, and an extrusion plug is fixedly arranged at the bottom of the extrusion plate.
Preferably, the top of the detection table is provided with a placement opening, and the inner wall of the protective cover is provided with a gas blowing hole communicated with the inside of the cavity;
when the substrate is completely placed in the placement opening, the air blowing hole is right opposite to the top of the substrate.
Preferably, a first electric wire is fixedly installed in the middle of the connecting block, and a second electric wire connected with the first electric wire is fixedly connected to the top of the probe.
Preferably, limit sliding grooves are formed in the inner wall of the movable cavity along annular equidistance, and limit sliding blocks are fixedly mounted on the outer side of the connecting plate along annular equidistance.
Preferably, the top of the connecting plate is fixedly provided with a supporting block positioned under the pressure sensor, and the top of the limit sliding block is fixedly connected with a second spring fixedly connected with the top inside the limit sliding groove.
Preferably, the inner wall of the protective cover is provided with exhaust holes positioned at two sides of the electrostatic dust collection plate, and the positions of the exhaust holes are higher than the positions of the air blowing holes.
Preferably, the both sides of installing frame all fixedly connected with connecting rod, the installing port has been seted up to the outer end of connecting rod, scrape the outside fixed mounting of dirt box and have the installation piece.
Preferably, the method comprises the following steps:
s1, starting a driving device to work, driving an electric detection appliance and a connecting block to descend through a driving rod, enabling a protective cover to contact with the top of a detection table at first, enabling extruding plates on two sides to be driven by the descending connecting block to extrude downwards along the inside of a cavity, extruding air in the lower end of the cavity by an extruding plug, and blowing the air to the top of a substrate through a blowing hole;
s2, when the continuously-descending squeeze plate is not in contact with the elastic shrinkage button, the elastic shrinkage button stretches outwards, and the electrostatic dust collection plates on the two sides are controlled to be electrified;
s3, the connecting block drives the probe to descend, when the probe contacts with a contact on the substrate, the probe presses the second spring through the connecting plate and slowly retracts into the movable cavity, and when the pressure sensor is pressed by the abutting block, the driving device is immediately controlled to stop working;
s4, after the electric detection work is finished, controlling the driving device to drive the electric detection appliance and the connecting block to ascend through the driving rod, and enabling the mounting frame to ascend along with the connecting block and to scrape along the outer part of the electrostatic dust collection plate through dust scraping boxes at two sides;
s5, the extrusion plate ascends along the inner portion of the cavity along with the connecting block, and when the extrusion plate extrudes the elastic shrinkage button to shrink, the electrostatic dust collection plate is controlled to be powered off.
The beneficial effects of the invention are as follows:
1. according to the invention, the substrate to be detected is placed into the placing port for limiting, then the driving device is started to work, the electric detection appliance and the connecting block are driven to descend through the driving rod, the protective cover integrally descends, the protective cover is firstly contacted with the top of the detection table, the connecting block extrudes the first spring through the fixing plate to enable the first spring to have elasticity in the process of continuing descending, meanwhile, the extrusion plates on two sides are driven to extrude downwards along the cavity, in the process, the air inlet is not communicated with the lower end of the cavity, meanwhile, the continuously descending extrusion plate extrudes air in the lower end of the cavity through the extrusion plug and blows to the top of the substrate through the blowing hole, and dust accumulated on the substrate can be blown up, so that the dust is not easy to influence in electric detection.
2. According to the invention, the probe is driven to descend through the continuously descending connecting block, when the probe is in contact with the contact on the substrate, the connecting block continuously descends, the probe can extrude the second spring through the connecting block in the process to enable the second spring to have elasticity and slowly retract into the movable cavity, when the pressure sensor is extruded by the abutting block, the driving device can be immediately controlled to stop working, the second spring with elasticity can always give a downward force to the probe, so that the probe can be in close contact with the contact, and meanwhile, the probe and the contact are prevented from being damaged due to overlarge force exerted by the probe through the arrangement of the second spring.
3. According to the invention, when the extrusion plate descends and extrudes the air in the cavity to remove dust from the top of the substrate, the elastic shrinkage button stretches outwards when the extrusion plate descends and does not contact with the elastic shrinkage button, meanwhile, the electrostatic dust removal plates on two sides are controlled to be electrified, dust particles blown up and mixed in the air can be adsorbed by an electrostatic dust removal method, the dust removal effect is achieved, when the electric detection work is finished, the electric detection device and the connecting block are driven by the driving device to ascend through the driving rod, as the first spring with the elastic force is always contacted with the top of the detection table against the protection cover, the mounting frame is ascended along with the connecting block, dust particles adsorbed outside the electrostatic dust removal plate can be scraped together through the dust scraping boxes on two sides, meanwhile, the extrusion plate can ascend along the cavity along with the connecting block, when the extrusion plate extrudes the elastic shrinkage button, the electrostatic dust removal plate is controlled to be powered off, and the dust scraped together can directly fall into the dust scraping box below to be stored, and the mounting block on the dust scraping box can be separated from the mounting port from the interior of the mounting port at regular intervals, so that the dust scraping box can be separated from the connecting rod, and the dust scraping box is convenient to clean.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a probe of the present invention in contact with a substrate;
FIG. 3 is a schematic view of the present invention when the shield is brought into contact with the top of the inspection station;
FIG. 4 is a schematic view of the electrostatic precipitator plate of the present invention;
FIG. 5 is a schematic view of the position of the dust box of the present invention;
FIG. 6 is a schematic view of the structure of the connection part between the dust scraping box and the connecting rod;
FIG. 7 is a schematic view of the internal structure of the protective cover of the present invention;
FIG. 8 is a schematic view of the internal structure of the movable chamber of the present invention.
In the figure: 1. a support frame; 2. a detection table; 201. a placement port; 3. a driving device; 4. a driving rod; 5. an electrical detection appliance; 6. a fixing plate; 7. a first spring; 8. a protective cover; 801. an air inlet hole; 802. an exhaust hole; 803. a blow hole; 9. a cavity; 10. an extrusion plate; 101. extruding the plug; 11. an elastic force shrinkage button; 12. a connecting block; 121. a first electric wire; 13. a movable cavity; 131. limiting sliding grooves; 14. a connecting plate; 141. a second spring; 142. abutting blocks; 143. a limit sliding block; 15. a probe; 151. a second electric wire; 16. a substrate; 17. a pressure sensor; 18. an electrostatic dust collection plate; 19. a dust scraping box; 191. a mounting block; 20. a mounting frame; 2001. a connecting rod; 2002. and (5) an installation port.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, the embodiment of the invention provides an electrical detection device and a method, which comprises a supporting frame 1, a detection table 2, a substrate 16 and a dust scraping box 19, wherein a driving device 3 is fixedly arranged at the top of the supporting frame 1, a driving rod 4 is fixedly connected to the bottom of the driving device 3, an electrical detection device 5 is fixedly connected to the bottom of the driving rod 4, a connecting block 12 is fixedly connected to the bottom of the electrical detection device 5, a fixed plate 6 is fixedly arranged outside the connecting block 12, a first spring 7 is fixedly connected to the bottom of the fixed plate 6, a protective cover 8 is movably sleeved outside the connecting block 12, a cavity 9 is formed inside the protective cover 8, an elastic shrinkage button 11 is fixedly arranged inside the cavity 9, extrusion plates 10 positioned inside the cavity 9 are fixedly connected to two sides of the connecting block 12, a movable cavity 13 is formed at the lower end of the connecting block 12, a pressure sensor 17 is fixedly arranged at the top inside the movable cavity 13, a connecting plate 14 is movably connected to the middle of the movable cavity 14, a probe 15 is fixedly connected to the middle part of the connecting plate 14, a mounting frame 20 is fixedly arranged outside the lower end of the connecting block 12, and electrostatic plates 18 are fixedly arranged on two inner walls of the protective cover 8;
the working principle and beneficial effects of the technical scheme are as follows: when the driving device 3 is started to work and the electric detection appliance 5 and the connecting block 12 are driven to descend through the driving rod 4, the protective cover 8 integrally descends, the protective cover 8 is firstly contacted with the top of the detection table 2, the first spring 7 is extruded through the fixing plate 6 in the process of continuing to descend, meanwhile, the extrusion plates 10 on two sides are driven to downwards extrude along the inside of the cavity 9, the air inlet 801 and the lower end of the inside of the cavity 9 are isolated from each other in the process, and meanwhile, the continuously descending extrusion plates 10 extrude air in the lower end of the cavity 9 through the extrusion plug 101 and blow the air towards the top of the substrate 16 through the air blowing hole 803, so that dust accumulated on the substrate 16 can be blown up, and the influence of the dust is not easy to cause when electric detection is ensured; the probe 15 is driven to descend through the descending connecting block 12, when the probe 15 is in contact with a contact on the substrate 16, the connecting block 12 is continuously descended, the probe 15 can squeeze the second spring 141 through the connecting plate 14 in the process to enable the second spring 141 to have elasticity and slowly retract into the movable cavity 13, when the pressure sensor 17 is squeezed by the abutting block 142, the driving device 3 is immediately controlled to stop working, the second spring 141 with elasticity can always give a downward force to the probe 15, so that the probe 15 is in close contact with the contact, and meanwhile, the probe 15 and the contact are prevented from being damaged due to the fact that the second spring 141 is arranged; when the extrusion plate 10 descends and extrudes the air in the cavity 9 to remove dust for the top of the substrate 16, when the extrusion plate 10 descends and is not contacted with the elastic shrinkage button 11, the elastic shrinkage button 11 stretches outwards, meanwhile, the electrostatic dust removal plates 18 on two sides are controlled to be electrified, dust particles blown up and mixed in the air can be adsorbed through an electrostatic dust removal method, a dust removal effect is achieved, after the electric detection work is finished, in the process that the driving device 3 drives the electric detection appliance 5 and the connecting block 12 to ascend through the driving rod 4, as the first spring 7 with elastic force is always contacted with the top of the detection table 2 against the protective cover 8, the mounting frame 20 ascends along with the connecting block 12, dust particles adsorbed outside the electrostatic dust removal plates 18 can be scraped together through the dust scraping boxes 19 on two sides, meanwhile, the extrusion plate 10 ascends along the inside of the cavity 9, when the extrusion plate 10 extrudes the elastic shrinkage button 11, the electrostatic dust removal plates 18 are controlled to be powered off, and dust gathered together can directly fall into the dust scraping boxes 19 below.
As shown in fig. 2, in one embodiment, an air inlet hole 801 communicated with the inside of the cavity 9 is formed on the outer part of the protective cover 8, and an extrusion plug 101 is fixedly arranged at the bottom of the extrusion plate 10;
the working principle and beneficial effects of the technical scheme are as follows: outside air can enter into cavity 9 inside through inlet port 801 department, when stripper plate 10 descends along cavity 9's inside, can extrude the inside air of cavity 9 lower extreme through extrusion stopper 101 for inside air blows out through gas vent 803 department, thereby removes dust for the top of base plate 16, and is very convenient.
As shown in fig. 1 and 2, in one embodiment, a placement opening 201 is formed at the top of the detection table 2, and a gas blowing hole 803 communicated with the interior of the cavity 9 is formed on the inner wall of the protection cover 8;
when the substrate 16 is completely placed inside the placement port 201, the air hole 803 is just opposite to the top of the substrate 16;
the working principle and beneficial effects of the technical scheme are as follows: the substrate 16 can be placed in the placement opening 201, so that the position of the substrate is firmly limited and fixed, and meanwhile, feeding and discharging of workers are facilitated; the gas is blown out from the gas blowing holes 803 by pressing the lower end inside the cavity 9 by the pressing plate 10, thereby removing dust accumulated on the top of the substrate 16, which is very efficient.
As shown in fig. 3, in one embodiment, a first wire 121 is fixedly installed at the middle of the connection block 12, and a second wire 151 connected to the first wire 121 is fixedly connected to the top of the probe 15;
the working principle and beneficial effects of the technical scheme are as follows: the probe 15 is electrically connected with the electrical detection device 5 through the second electric wire 151 and the first electric wire 121, and meanwhile, the second electric wire 151 can facilitate the probe 15 to keep a circuit smooth in the stretching process, so that electrical detection work is facilitated.
As shown in fig. 8, in one embodiment, limit sliding grooves 131 are formed on the inner wall of the movable cavity 13 at equal intervals along the ring shape, and limit sliding blocks 143 are fixedly mounted on the outer side of the connecting plate 14 at equal intervals along the ring shape;
the working principle and beneficial effects of the technical scheme are as follows: through the inside slip of spacing slider 143 at spacing spout 131, can give connecting plate 14 a stable spacing effect, guarantee that it can stably go up and down to ensure that the steady thrust of probe 15 can be applyed to second spring 141 that has elasticity, make things convenient for probe 15 and contact.
As shown in fig. 8, in one embodiment, the top of the connecting plate 14 is fixedly provided with a supporting block 142 positioned under the pressure sensor 17, and the top of the limit sliding block 143 is fixedly connected with a second spring 141 fixedly connected with the top inside the limit sliding groove 131;
the working principle and beneficial effects of the technical scheme are as follows: when the connecting plate 14 is contracted towards the inside of the movable cavity 13, the pressure sensor 17 is extruded by the supporting block 142, and when the pressure sensor 17 is extruded, the driving device 3 can be immediately controlled to stop working, so that excessive extrusion force can be avoided, and meanwhile, the probe 15 can be tightly contacted with the contact point by the second spring 141 with elastic force.
As shown in fig. 3, in one embodiment, the inner wall of the protective cover 8 is provided with exhaust holes 802 positioned at two sides of the electrostatic dust collection plate 18, and the position of the exhaust holes 802 is higher than that of the air blowing holes 803;
the working principle and beneficial effects of the technical scheme are as follows: when the air in the cavity 9 blows to the top of the substrate 16 to remove dust through the air blowing holes 803, the air pressure in the protective cover 8 is increased, the air in the protective cover is dispersed through the air exhausting holes 802, and the air flowing in the process brings floating dust particles to be close to the electrostatic dust removing plate 18, so that the electrostatic dust removing plate 18 convenient to electrify adsorbs the dust particles by using an electrostatic dust removing method, and the dust removing device is very efficient.
As shown in fig. 5 and 6, in one embodiment, connecting rods 2001 are fixedly connected to two sides of the mounting frame 20, mounting openings 2002 are formed in outer ends of the connecting rods 2001, and mounting blocks 191 are fixedly mounted on the outer sides of the dust scraping boxes 19;
the working principle and beneficial effects of the technical scheme are as follows: the installation blocks 191 on the dust scraping box 19 can be separated from the inside of the installation opening 2002 at regular intervals, so that the dust scraping box 19 can be detached from the connecting rod 2001, the cleaning is convenient, and meanwhile, the installation work is also convenient.
In one embodiment, the method comprises the steps of:
s1, firstly, a substrate 16 to be detected can be placed into a placing port 201 for limiting, then a driving device 3 is started to work, an electric detection appliance 5 and a connecting block 12 are driven to descend through a driving rod 4, a protective cover 8 integrally descends, the protective cover 8 firstly contacts with the top of a detection table 2, the connecting block 12 is extruded by a fixing plate 6 to enable the first spring 7 to have elasticity in the process of continuing descending, meanwhile, extrusion plates 10 on two sides are driven to extrude downwards along the inside of a cavity 9, in the process, the air inlet hole 801 is not communicated with the lower end partition inside the cavity 9, meanwhile, the continuously descending extrusion plates 10 extrude air in the lower end of the cavity 9 through an extrusion plug 101 and blow the air towards the top of the substrate 16 through an air blowing hole 803, and dust accumulated on the substrate 16 can be blown up;
s2, when the continuously-descending squeeze plate 10 is not in contact with the elastic shrinkage button 11, the elastic shrinkage button 11 stretches outwards, and meanwhile, the electrostatic dust collection plates 18 on the two sides are controlled to be electrified, so that dust particles blown up and mixed in the air can be adsorbed by an electrostatic dust collection method, and a dust collection effect is achieved;
s3, driving the probe 15 to descend through the descending connecting block 12, when the probe 15 is in contact with a contact on the substrate 16, the connecting block 12 is continuously descended, the probe 15 can squeeze the second spring 141 through the connecting plate 14 in the process to enable the second spring 141 to have elasticity and slowly retract into the movable cavity 13, when the pressure sensor 17 is squeezed by the abutting block 142, the driving device 3 is immediately controlled to stop working, the second spring 141 with elasticity can always give a downward force to the probe 15, so that the probe 15 is in close contact with the contact, if a lamp on the electrical detection device 5 is lighted, the electrical conduction is good, the substrate 16 is judged to be good, and if the lamp on the electrical detection device 5 is not lighted, the substrate 16 is judged to be abnormal in conduction, and the electrical detection device is bad;
s4, after the electric detection work is finished, the driving device 3 is controlled to drive the electric detection appliance 5 and the connecting block 12 to ascend through the driving rod 4, the first spring 7 with elasticity can be always contacted with the top of the detection table 2 against the protective cover 8, the mounting frame 20 is ascended along with the connecting block 12, and dust particles adsorbed on the outer parts of the electrostatic dust collection plates 18 can be scraped together through the dust scraping boxes 19 on the two sides;
s5, the extrusion plate 10 can rise along the inside of the cavity 9 along with the connecting block 12, when the extrusion plate 10 extrudes the elastic shrinkage button 11 to shrink, the electrostatic dust collection plate 18 can be controlled to be powered off, and dust collected by scraping can directly fall into the dust scraping box 19 below to be stored.
Working principle and using flow:
firstly, a substrate 16 to be detected can be placed into a placing port 201 for internal limiting, then a driving device 3 is started to work, an electric detection appliance 5 and a connecting block 12 are driven to descend through a driving rod 4, a protective cover 8 integrally descends, the protective cover 8 firstly contacts with the top of a detection table 2, the connecting block 12 is extruded by a first spring 7 through a fixing plate 6 to have elasticity in the process of continuing descending, meanwhile, extrusion plates 10 on two sides are driven to be extruded downwards along the inside of a cavity 9, in the process, an air inlet 801 is not communicated with the lower end partition inside the cavity 9, and meanwhile, the continuously descending extrusion plates 10 extrude air in the lower end of the cavity 9 through an extrusion plug 101 and blow the air towards the top of the substrate 16 through a blowing hole 803, so that dust accumulated on the substrate 16 can be blown up;
meanwhile, when the continuously descending squeeze plate 10 is not contacted with the elastic shrinkage button 11, the elastic shrinkage button 11 can be outwards stretched, and meanwhile, the electrostatic dust collection plates 18 on two sides are controlled to be electrified, so that dust particles blown up and mixed in the air can be adsorbed by an electrostatic dust collection method, and a dust collection effect is achieved;
the probe 15 is driven to descend through the descending connecting block 12, when the probe 15 is in contact with a contact on the substrate 16, the connecting block 12 is continuously descended, the probe 15 can extrude the second spring 141 through the connecting plate 14 in the process to enable the second spring 141 to have elasticity and slowly retract into the movable cavity 13, when the pressure sensor 17 is extruded by the abutting block 142, the driving device 3 is immediately controlled to stop working, the second spring 141 with elasticity can always give downward force to the probe 15, the probe 15 can be in close contact with the contact, if a lamp on the electrical detection device 5 is lighted, the electrical conduction is good, the substrate 16 is judged to be good, and if the lamp on the electrical detection device 5 is not lighted, the substrate 16 is judged to be abnormal in conduction and is judged to be bad;
when the electric detection work is finished, the driving device 3 is controlled to drive the electric detection appliance 5 and the connecting block 12 to ascend through the driving rod 4, the first spring 7 with elasticity can be always contacted with the top of the detection table 2 against the protective cover 8, the mounting frame 20 is ascended along with the connecting block 12, and dust particles adsorbed outside the electrostatic dust collection plate 18 can be scraped and gathered together through the dust scraping boxes 19 on the two sides;
meanwhile, the extrusion plate 10 can rise along the inside of the cavity 9 along with the connecting block 12, when the extrusion plate 10 extrudes the elastic shrinkage button 11 to shrink, the electrostatic dust collection plate 18 can be controlled to be powered off, dust collected together after scraping can directly fall into the dust scraping box 19 below to be stored, the mounting blocks 191 on the dust scraping box 19 can be separated from the inside of the mounting port 2002 regularly, and the dust scraping box 19 can be detached from the connecting rod 2001, so that the cleaning is convenient.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An electrical detection device comprises a support frame (1), a detection table (2), a base plate (16) and a dust scraping box (19), and is characterized in that: the top fixed mounting of support frame (1) has drive arrangement (3), the bottom fixedly connected with actuating lever (4) of drive arrangement (3), the bottom fixedly connected with electrical detection utensil (5) of actuating lever (4), the bottom fixedly connected with connecting block (12) of electrical detection utensil (5), the outside fixed mounting of connecting block (12) has fixed plate (6), the bottom fixedly connected with first spring (7) of fixed plate (6), the outside movable sleeve of connecting block (12) has protection casing (8), cavity (9) have been seted up to the inside of protection casing (8), the inside fixed mounting of cavity (9) has elasticity shrink button (11), the equal fixedly connected with in both sides of connecting block (12) is located inside stripper plate (10) of cavity (9), movable cavity (13) have been seted up to the lower extreme of connecting block (12), the inside top fixed mounting of movable cavity (13) has pressure sensor (17), the inside movable connection connecting plate (14) of connecting plate (14), the inside fixed connection of connecting plate (15) has probe (20) to install outside fixed mounting of frame (20), electrostatic dust collection plates (18) are fixedly arranged on the two inner walls of the protective cover (8);
an air inlet hole (801) communicated with the inside of the cavity (9) is formed in the outer part of the protective cover (8), and an extrusion plug (101) is fixedly arranged at the bottom of the extrusion plate (10);
a placing opening (201) is formed in the top of the detection table (2), and a gas blowing hole (803) communicated with the inside of the cavity (9) is formed in the inner wall of the protective cover (8);
when the substrate (16) is completely placed in the placement opening (201), the air blowing hole (803) is just opposite to the top of the substrate (16).
2. An electrical test device according to claim 1, wherein: the middle part of connecting block (12) fixed mounting has first electric wire (121), the top fixedly connected with of probe (15) is connected with second electric wire (151) that are connected with first electric wire (121).
3. An electrical test device according to claim 2, wherein: limiting sliding grooves (131) are formed in the inner wall of the movable cavity (13) at equal intervals along the ring, and limiting sliding blocks (143) are fixedly mounted on the outer side of the connecting plate (14) at equal intervals along the ring.
4. An electrical test device according to claim 3, wherein: the top of connecting plate (14) fixed mounting is located supporting piece (142) under pressure sensor (17), the top fixedly connected with of spacing slider (143) is with second spring (141) of the inside top fixed connection of spacing spout (131).
5. An electrical test device according to claim 4, wherein: the inner wall of the protective cover (8) is provided with exhaust holes (802) positioned at two sides of the electrostatic dust collection plate (18), and the positions of the exhaust holes (802) are higher than the positions of the air blowing holes (803).
6. An electrical test device according to claim 5, wherein: both sides of installing frame (20) are all fixedly connected with connecting rod (2001), installing port (2002) have been seted up to the outer end of connecting rod (2001), the outside fixed mounting of scraping dirt box (19) has installation piece (191).
7. An electrical inspection method, implemented with the electrical inspection device of any one of claims 4-6, comprising the steps of:
s1, starting a driving device (3) to work, driving an electric detection appliance (5) and a connecting block (12) to descend through a driving rod (4), enabling a protective cover (8) to contact with the top of a detection table (2) at first, driving extrusion plates (10) on two sides to extrude downwards along the inside of a cavity (9) by the descending connecting block (12), extruding air in the lower end of the cavity (9) by an extrusion plug (101), and blowing the air to the top of a substrate (16) through a blowing hole (803);
s2, when the continuously-descending extrusion plate (10) is not contacted with the elastic shrinkage button (11), the elastic shrinkage button (11) can be stretched outwards, and the electrostatic dust collection plates (18) on the two sides are controlled to be electrified;
s3, the connecting block (12) drives the probe (15) to descend, when the probe (15) is in contact with a contact point on the substrate (16), the probe (15) can squeeze the second spring (141) through the connecting plate (14) and slowly retract into the movable cavity (13), and when the abutting block (142) squeezes the pressure sensor (17), the driving device (3) can be immediately controlled to stop working;
s4, after the electric detection work is finished, the driving device (3) is controlled to drive the electric detection appliance (5) and the connecting block (12) to ascend through the driving rod (4), and the mounting frame (20) ascends along with the connecting block (12) and is scraped along the outside of the electrostatic dust collection plate (18) through dust scraping boxes (19) at two sides;
s5, the extrusion plate (10) ascends along the inner portion of the cavity (9) along with the connecting block (12), and when the extrusion plate (10) extrudes the elastic shrinkage button (11) to shrink, the electrostatic dust collection plate (18) is controlled to be powered off.
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| CN115372790A (en) | 2022-11-22 |
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