CN105589029A - PCB online testing device and PCB online testing method - Google Patents
PCB online testing device and PCB online testing method Download PDFInfo
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- CN105589029A CN105589029A CN201610143632.2A CN201610143632A CN105589029A CN 105589029 A CN105589029 A CN 105589029A CN 201610143632 A CN201610143632 A CN 201610143632A CN 105589029 A CN105589029 A CN 105589029A
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- pcb
- online testing
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- testing device
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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
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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)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a PCB online testing device and a PCB online testing method. The PCB online testing device and the PCB online testing method belong to the field of PCB testing devices. The PCB online testing device comprises a PC, a controller, a sensing device and a driving mechanism which is placed on a worktable. The controller performs controlling for realizing starting, speed regulation, braking and reversing of the driving mechanism, thereby downwards pressing the button of a tested member through the driving mechanism. The sensing device detects a pressure which is bear by the press button and the displacement of the press button, and furthermore performs feedback of measured data to the PC. According to the PCB online testing device and the PCB online testing method, automatic control is utilized from data detection to data analysis processing. The PCB online testing device and the PCB online testing method have advantages of realizing intelligent analysis and comparison, improving detecting precision, shortening detecting time and reducing production cost.
Description
Technical field
The invention belongs to pcb board checkout gear field, relate to a kind of system of PCB being carried out to on-line testingAnd the method for testing of system.
Background technology
Existing pcb board (printed circuit board (PCB)) test macro is generally the tool according to tested test runBody function and independent designed system. When user carries out production line operation, populated circuit board, every production oneType electronic product, just need circuit board the circuit board that supplier designs is a or many moneys are supporting surveyTest system. In situation, improve use cost and the maintenance difficulties of user aspect circuit board testing like this;Meanwhile, also can extend the construction cycle of product, be unfavorable for implementing efficiently production line operation.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of automaticity high, from detectingProcess and all adopt automation control to data analysis, reduce workman's operation, adopt intellectual analysis and comparison,Improve accuracy of detection, the PCB online testing device and the method for testing that shorten detection time.
The present invention is achieved through the following technical solutions:
The invention provides PCB online testing device, comprise PC, controller, sensing equipment and putDriving mechanism on workbench, the startup of driving mechanism described in described controller control, speed governing, braking andOppositely, thereby press down the button of test block by described driving mechanism, described sensing equipment is subject to described buttonTo pressure and displacement thereof detect, and then measurement data is fed back to described PC.
Optionally, described driving mechanism comprises electric cylinder and be positioned at the slipway mechanism on described workbench, wherein,
Described slipway mechanism comprises the X-axis slide unit structure that is fixed on described workbench, is located at described X-axisThe Y-axis slide unit structure of slide unit structure, be located at the Z axis slide unit structure of described Y-axis slide unit structure, described electricityCylinder moves along Z axis with respect to described Z axis slide unit structure; Described Z axis slide unit structure is with respect to described Y-axisSlide unit structure is moving along y-axis shift; Described Y-axis slide unit structure is moved along X-axis with respect to described X-axis slide unit structureMoving.
Further, described driving mechanism also comprises pressing plate, and described pressing plate is detachably installed on described electric cylinder,Described controller, by the motion of pressing plate described in described electric cylinder control, makes described pressing plate press down described button.
Optionally, described sensing equipment comprises directly and some described buttons corresponding be electrically connected some one by oneCAN node and there is the CAN adapter of CAN interface and PC interface, described CAN node with described inThe electrical connection of CAN adapter, described CAN adapter is electrically connected with described PC, when pressing down one of themWhen described button, corresponding described CAN node is reported described in which and is pressed to described CAN adapter with itKey is pressed down, and the information that described CAN adapter is pressed down button described in which is transmitted to described PC.
Optionally, described sensing equipment comprises a pressure sensor, a pallet, and described pressure sensor is placed inOn described workbench, described pressure sensor top be provided with one described in pallet, described pallet in order to place testPart, the pressure that described pressure sensor is subject to when detecting described button pressed this pressure data feedbackTo described PC.
Optionally, described sensing equipment comprises a displacement transducer, and described displacement transducer is in order to described in detectingDisplacement on time under button, and then displacement data is fed back to described PC.
Further, described displacement transducer is displacement sensor of variable capacitor.
Optionally, this testing arrangement also comprise be located at a safe grating of described driving mechanism neighboring and with instituteState safe grating connect a safety relay, described safety relay be series at described controller with described in driveIn the circuit of actuation mechanism, in the time that the optical signal of described safe grating is blocked, described safe grating is to described peaceAll relay sends shielding signals, and described safety relay, by opening circuit to respond this shielding signals, makes instituteStating driving mechanism quits work.
Optionally, be directed to described PC, be provided with to realize pcb board test structure output functionPrinter.
A kind of PCB on-line testing method, adopts the PCB as described in claim 1-8 any one to survey onlineElectricity testing device, is characterized in that, the method has following steps:
S0: start whole PCB online testing device;
S1: described controller presses down described button for N time by described driving mechanism, then enters step S2;
S2: described controller presses down described button again by described driving mechanism, described sensing equipment detectsDisplacement on time under the pressure that described button is subject to while pressing down and described button, then enters step S3;
S3: judge whether the pressure of described button and displacement data drop within the scope of preset value, if all fall intoWithin the scope of preset value, obtain OK result, enter step S4; Otherwise, obtain NG result, enterStep S5;
S4: described test block is carried out to OK mark;
S5: described test block is carried out to NG mark.
The present invention has following useful technique effect:
The versatility of testing arrangement of the present invention and autgmentability are all very strong;
Automaticity of the present invention is high, all adopts automation control from detecting that data analysis is processed, and subtractsFew workman's operation, can improve accuracy of detection, shortens detection time;
The present invention can follow the trail of the workpiece going wrong, and changes after workpiece, can be rapidly to replacingWorkpiece detects, and has avoided duplicate detection, improves detection efficiency, reduce production costs, and the matter of productAmount and reliability are also effectively guaranteed, and have effectively improved the productivity effect of enterprise.
Brief description of the drawings
Fig. 1 is the schematic diagram of the PCB online testing device of one embodiment of the invention;
Fig. 2 is the front view of the PCB online testing device of one embodiment of the invention;
Fig. 3 is the side view of the PCB online testing device of one embodiment of the invention;
In figure, 1-controller; 2-driving mechanism; 3-test block; 4-PC machine; 5-slipway mechanism; 6-electricity cylinder;7-workbench; 8-pressure sensor; 9-displacement transducer; 10-pressing plate; 11-button; 12-pallet; 13-Safe grating; Scale-14; 15-moves chi; 16-safety relay.
Detailed description of the invention
The present invention is further explained by specific embodiment below with reference to Fig. 1 to Fig. 3.
Please comprehensive reference Fig. 1 to Fig. 3, the invention provides PCB online testing device, comprise PC 4,Controller 1, driving mechanism 2 and sensing equipment, described controller 1 control described driving mechanism 2 startup,Speed governing, braking and oppositely, thus press down the button 11 of test block 3 by described driving mechanism 2, described inPressure and displacement thereof that sensing equipment is subject to described button 11 detect, and then measurement data is fed backTo described PC 4.
As shown in Figures 2 and 3, PCB online testing device is cabinet-type semi-closed structure, is divided into upper strataStructure and understructure, superstructure opening part is provided with safe grating 13, and described driving mechanism 2 is positioned atIn layer structure, described controller 1 is positioned at understructure, described driving mechanism 2 and described controller 1Electrical connection, described PC 4 is located at upper exterior surfaces, handled easily person's operation, described PC 4 is dressesBe loaded with the microcomputer of multifunctional testing program.
Optionally, described driving mechanism 2 comprises electric cylinder 6 and is positioned at the slipway mechanism 5 on described workbench 7,Wherein,
Described slipway mechanism 5 comprises the X-axis slide unit structure that is fixed on described workbench 7, be located at described inThe Y-axis slide unit structure of X-axis slide unit structure, be located at the Z axis slide unit structure of described Y-axis slide unit structure, instituteStating electric cylinder 6 moves along Z axis with respect to described Z axis slide unit structure; Described Z axis slide unit structure is with respect to instituteState Y-axis slide unit structure moving along y-axis shift; Described Y-axis slide unit structure is with respect to described X-axis slide unit structure edgeX-axis moves.
Further, described driving mechanism 2 also comprises pressing plate 10, and described pressing plate 10 is detachably installed on instituteState on electric cylinder 6, described controller 1 is controlled the motion of described pressing plate 10 by described electric cylinder 6, make instituteState pressing plate 10 and press down described button 11.
Optionally, if described sensing equipment comprise directly and some described buttons 11 corresponding electrical connection one by oneDry CAN node and there is the CAN adapter of CAN interface and PC interface, described CAN node withDescribed CAN adapter electrical connection, described CAN adapter is electrically connected with described PC 4, when pressing down itIn when a described button 11, with it corresponding described CAN node to described CAN adapter report whichIndividual described button 11 is pressed down, and the information that described CAN adapter is pressed down button described in which 11 turnsIssue described PC 4.
Optionally, described sensing equipment comprises a pressure sensor 8, a pallet 12, described pressure sensor8 are placed on described workbench 7, described pressure sensor 8 tops be provided with one described in pallet 12, described pallet12 in order to place test block 3, and described pressure sensor 8 is subject to when described button 11 presses down in order to detectPressure also feeds back to described PC 4 this pressure data.
Optionally, described sensing equipment comprises a displacement transducer 9, and described displacement transducer 9 is in order to detectDescribed button 11 times displacement on time, and then displacement data is fed back to described PC 4.
Further, described displacement transducer 9 is displacement sensor of variable capacitor.
Optionally, this testing arrangement also comprises a safe grating 13 of being located at described driving mechanism 2 neighboringsWith the safety relay 16 being connected with described safe grating 13, described safety relay 16 is series at instituteState in the circuit of controller 1 and described driving mechanism 2, when the optical signal of described safe grating 13 is blockedTime, described safe grating 13 sends shielding signals to described safety relay 16, described safety relay16 by opening circuit to respond this shielding signals, and described driving mechanism 2 is quit work.
Optionally, be directed to described PC, be provided with to realize pcb board test structure output functionPrinter.
A kind of PCB on-line testing method, adopts above-mentioned PCB online testing device, it is characterized in that, shouldMethod has following steps:
S0: start whole PCB online testing device;
S1: described controller 1 presses down described button 11 for 2N time by described driving mechanism, then entersStep S2;
S2: described controller 1 presses down described button 11, described sensing again by described driving mechanism 211 times displacements on time of the pressure being subject to when button 11 presses down described in Equipment Inspection and described button, thenEnter step S3;
S3: judge whether the pressure of described button 11 and displacement data drop within the scope of preset value, if allFall within the scope of preset value, obtain OK result, enter step S4; Otherwise, obtain NG result,Enter step S5;
S4: described test block 3 is carried out to OK mark;
S5: described test block 3 is carried out to NG mark.
The present invention has following useful technique effect:
The versatility of testing arrangement of the present invention and autgmentability are all very strong;
Automaticity of the present invention is high, all adopts automation control from detecting that data analysis is processed, and subtractsFew workman's operation, can improve accuracy of detection, shortens detection time;
The present invention can follow the trail of the workpiece going wrong, and changes after workpiece, can be rapidly to replacingWorkpiece detects, and has avoided duplicate detection, improves detection efficiency, reduce production costs, and the matter of productAmount and reliability are also effectively guaranteed, and have effectively improved the productivity effect of enterprise.
The above, be only preferably detailed description of the invention of the present invention, but not office of protection scope of the present inventionBe limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in, can be easilyThe variation of expecting or replacement, within all should being encompassed in protection scope of the present invention. Therefore, protection of the present inventionScope should be as the criterion with the protection domain of claim.
Claims (9)
1.PCB online testing device, is characterized in that, comprises PC, controller, sensing equipment and putsDriving mechanism on workbench, the startup of driving mechanism described in described controller control, speed governing, braking andOppositely, thereby press down the button of test block by described driving mechanism, described sensing equipment is subject to described buttonTo pressure and displacement thereof detect, and then measurement data is fed back to described PC.
2. PCB online testing device according to claim 1, is characterized in that: described driving machineStructure comprises electric cylinder and be positioned at the slipway mechanism on described workbench, wherein,
Described slipway mechanism comprises the X-axis slide unit structure that is fixed on described workbench, is located at described X-axisThe Y-axis slide unit structure of slide unit structure, be located at the Z axis slide unit structure of described Y-axis slide unit structure, described electricityCylinder moves along Z axis with respect to described Z axis slide unit structure; Described Z axis slide unit structure is with respect to described Y-axisSlide unit structure is moving along y-axis shift; Described Y-axis slide unit structure is moved along X-axis with respect to described X-axis slide unit structureMoving.
3. PCB online testing device according to claim 2, is characterized in that: described driving machineStructure also comprises pressing plate, and described pressing plate is detachably installed on described electric cylinder, and described controller is by described electric cylinderControl the motion of described pressing plate, make described pressing plate press down described button.
4. PCB online testing device according to claim 1, is characterized in that: described sensing is establishedStandby comprise directly with some described buttons one by one corresponding electrical connection some CAN nodes with there is CAN and connectThe CAN adapter of mouth and PC interface, described CAN node is electrically connected with described CAN adapter, instituteState CAN adapter and be electrically connected with described PC, when described in pressing down one of them when button, corresponding with itDescribed CAN node report described in which that to described CAN adapter button is pressed down, described CAN is suitableJoin the information that card is pressed down button described in which and be transmitted to described PC.
5. PCB online testing device according to claim 1, is characterized in that: described sensing is establishedFor comprising a pressure sensor, a pallet, described pressure sensor is placed on described workbench, described pressureSensor top be provided with one described in pallet, described pallet is in order to place test block, described pressure sensor in order toThe pressure being subject to while detecting described button pressed also feeds back to described PC this pressure data.
6. PCB online testing device according to claim 1, is characterized in that: described sensing is establishedThe standby displacement transducer that comprises, described displacement transducer is in order to detect under described button displacement on time, and thenDisplacement data is fed back to described PC.
7. PCB online testing device according to claim 6, is characterized in that: described displacement passesSensor is displacement sensor of variable capacitor.
8. PCB online testing device according to claim 1, is characterized in that, this testing arrangementAlso comprise and be located at a safe grating of described driving mechanism neighboring and the peace being connected with described safe gratingAll relay, described safety relay is series in the circuit of described controller and described driving mechanism, works as instituteWhen the optical signal of stating safe grating is blocked, described safe grating sends shading letter to described safety relayNumber, described safety relay, by opening circuit to respond this shielding signals, quits work described driving mechanism.
9. a PCB on-line testing method, adopts the PCB as described in claim 1-8 any one onlineTesting arrangement, is characterized in that, the method has following steps:
S0: start whole PCB online testing device;
S1: described controller presses down described button for N time by described driving mechanism, then enters step S2;
S2: described controller presses down described button again by described driving mechanism, described sensing equipment detectsDisplacement on time under the pressure that described button is subject to while pressing down and described button, then enters step S3;
S3: judge whether the pressure of described button and displacement data drop within the scope of preset value, if all fall intoWithin the scope of preset value, obtain OK result, enter step S4; Otherwise, obtain NG result, enterStep S5;
S4: described test block is carried out to OK mark;
S5: described test block is carried out to NG mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143632.2A CN105589029A (en) | 2016-03-14 | 2016-03-14 | PCB online testing device and PCB online testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610143632.2A CN105589029A (en) | 2016-03-14 | 2016-03-14 | PCB online testing device and PCB online testing method |
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| Publication Number | Publication Date |
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| CN105589029A true CN105589029A (en) | 2016-05-18 |
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| CN201610143632.2A Pending CN105589029A (en) | 2016-03-14 | 2016-03-14 | PCB online testing device and PCB online testing method |
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Application publication date: 20160518 |