CN113552468B - Quality detection and use method of PCB - Google Patents
Quality detection and use method of PCB Download PDFInfo
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- CN113552468B CN113552468B CN202110801918.6A CN202110801918A CN113552468B CN 113552468 B CN113552468 B CN 113552468B CN 202110801918 A CN202110801918 A CN 202110801918A CN 113552468 B CN113552468 B CN 113552468B
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- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 238000003825 pressing Methods 0.000 claims abstract description 55
- 230000033001 locomotion Effects 0.000 claims description 13
- 238000007689 inspection Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000012372 quality testing Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding 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
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Supply And Installment Of Electrical Components (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention relates to the technical field of circuit board detection, in particular to a quality detection using method of a PCB (printed Circuit Board), which comprises a frame, wherein a first workbench and a second workbench are arranged on the frame, an electronic screen is arranged in the frame, an adjusting mechanism for adjusting the position of the electronic screen is arranged at the bottom of the electronic screen, a clamping mechanism for clamping the circuit board is arranged in the frame, and a pressing mechanism is arranged in the frame. According to the quality detection using method of the PCB, the electronic screen is lightened by adopting the upper and lower pressing power-on modes, so that the operator can observe more intuitively, the condition that the operator omits detection of the PCB is reduced, the whole device is automatically controlled in real time, semi-automation is realized, the accuracy of the whole detection of the PCB is improved, the detection efficiency of the PCB can be greatly improved, the labor intensity of the operator is reduced, and the inaccurate detection condition is reduced.
Description
Technical Field
The invention relates to the technical field of circuit board detection, in particular to a quality detection using method of a PCB.
Background
Integrated circuit boards are very common in a variety of electronic devices. Because most of the integrated circuit boards are formed by punching and welding electronic components on the printed board, the manufactured circuit boards are often not 100% qualified and may have defects such as open circuit and short circuit, so that the circuit boards need to be electrified for detection after the circuit boards are manufactured, whether the circuit boards have the problems such as open circuit and short circuit or not is checked, and the probability of misusing the bad circuit boards can be effectively reduced.
The detection of many circuit boards still relies on the manual work to detect it, detects the condition that has the short circuit, and this kind is relatively lower to the efficiency of product quality detection, and intensity of concentration to staff's intensity of labour and spirit also can improve, and now also have some automated inspection's equipment to appear, and basically also through automatic plug-in components, insert on the interface terminal of circuit board, carry out plug-in components and detect, in such testing process, after the circuit board is not aligned, cause the pressure wound to the circuit board, cause unnecessary damage, frequent grafting simultaneously also can cause certain damage to detection terminal. In view of this, we propose a quality inspection usage method of PCB board.
Disclosure of Invention
The invention aims to provide a quality detection using method of a PCB (printed Circuit Board) to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the quality detection using method of the PCB comprises a frame, wherein a first workbench and a second workbench are arranged on the frame, an electronic screen is arranged in the frame, an adjusting mechanism for adjusting the position of the electronic screen is arranged at the bottom of the electronic screen, a clamping mechanism for clamping a circuit board is arranged in the frame, a pressing mechanism is arranged in the frame, a control board is fixedly arranged on the frame, and a calibration mechanism is arranged in the frame;
the quality detection using method of the PCB comprises the following steps:
step one: the electronic screen is fixed by manually placing the electronic screen on the adjusting mechanism, and the mounting plate adsorbs and fixes the electronic screen;
step two: the movement, the rotation of the servo motor drives the rotation of the rotary screw rod, the movement of the triangular plate is driven, and the lifting plate is driven to move forward and backward accurately so as to move the mounting plate to a position for detecting the pressing;
step three: shooting at one time, wherein two CCD cameras of the calibrating mechanism can perform shooting and positioning in different directions on the position of the electronic screen, so that position coordinate information of the electronic screen is input into the system;
step four: the installation, the operator places the circuit board on two clamping plates from the position of the second workbench, and the two cylinders move to clamp and fix the circuit board;
step five: the shifting module controls the clamping mechanism and the circuit board fixed on the clamping mechanism to move to the lower parts of the two CCD cameras;
step six: the two CCD cameras of the calibration mechanism carry out position shooting on the circuit board, and the shot position images are also transmitted to the control board;
step seven: analyzing and calculating, namely analyzing and calculating the relative positions of the electronic screen and the circuit board by the system control board, and transmitting the accurate coordinate positions of the detection pressing to the mobile module again after analysis;
step eight: accurate displacement, the operation of the moving module and the linear motor, so as to accurately transfer the circuit board to the position to be detected;
step nine: the pressing detection is carried out, the control board sends a signal to the lower pressing cylinder, and the lower pressing cylinder moves to control the upper pressing seat to move downwards so as to drive the upper pressing plate to slightly press the circuit board on the electronic screen;
when the electronic screen is lightened, the product is good;
when the electronic screen is not bright, the circuit board may have problems;
step ten: resetting, after detection, the mobile module sends the circuit board back to the original circuit, and an operator takes the circuit board to classify the product.
Preferably, the calibrating mechanism comprises a first motor, the output fixedly connected with drive wheel of first motor, the surface of drive wheel passes through the surface transmission of belt and drive wheel and is connected, the inside fixedly connected with frame board of frame, two loading boards of fixedly connected with on the frame board, the inside fixedly connected with lead screw of drive wheel, the surface rotation of lead screw is connected on the frame board, be provided with sliding support on the lead screw, be provided with the CCD camera on the sliding support, fixedly connected with sliding sleeve one on the sliding support, fixedly mounted has slide rail one on the loading board, sliding sleeve one and slide rail one sliding connection, the spacer has been cup jointed to the surface intermediate position of lead screw.
Preferably, the number of the calibration mechanisms is two, and the two calibration mechanisms are respectively arranged on the two bearing plates.
Preferably, the number of the sliding supports is two, the two sliding supports are connected to the screw rod through threads, half of threads on the surface of the screw rod are left-handed threads, and half of the threads are right-handed threads.
Preferably, the pressing mechanism comprises a pressing cylinder, the pressing cylinder is fixedly connected with a flat plate, the bottom of the flat plate is fixedly connected with a fixing seat, the flat plate is fixedly connected with a frame, the output end of the pressing cylinder is fixedly connected with an upper pressing seat, the bottom of the upper pressing seat is fixedly connected with an upper pressing plate, the inside of the frame is positioned below the upper pressing seat and is fixedly connected with a fixing seat, and the fixing seat is fixedly connected with a lower pressing plate.
Preferably, the upper pressing seat is fixedly connected with a sliding sleeve, the flat plate is fixedly connected with a guide rail plate, the guide rail plate is fixedly connected with a limiting sliding rail, and the sliding sleeve is in sliding connection with the limiting sliding rail.
Preferably, the adjustment mechanism comprises a servo motor, the output fixedly connected with of servo motor rotates the lead screw, the terminal surface rotation of rotating the lead screw is connected with rotates the seat, the bottom fixedly connected with connecting plate of rotating the seat, fixedly connected with set square on the connecting plate, sliding connection has sliding sleeve two on the set square, through bolted connection's extension board on the sliding sleeve two, fixedly connected with lifter plate on the extension board, the top fixedly connected with mounting panel of lifter plate, through bolted connection's transverse connection board on the set square, transverse connection board bottom fixedly connected with screw thread piece, screw thread piece and the surface threaded connection of rotating the lead screw, fixedly mounted has slide rail two on the connecting plate, the surface of slide rail two passes through sliding sleeve three and set square sliding connection.
Preferably, four sliding rods are arranged at the bottom of the lifting plate, guide sleeves are connected to the surfaces of the sliding rods in a sliding manner, and the guide sleeves are fixedly connected to the connecting plate.
Preferably, the fixture comprises a supporting plate, be provided with the diaphragm in the backup pad, fixedly connected with riser on the diaphragm, through bolted connection's first through the bolted connection cylinder on the riser, the output fixedly connected with cylinder two of first, the output fixedly connected with clamp splice of cylinder, fixedly connected with splint on the riser, splint are located the below of clamp splice, fixedly mounted has linear electric motor in the backup pad, linear electric motor's output and diaphragm fixed connection, the below of backup pad is provided with the movable module, the inside at the frame is fixed to the movable module.
Preferably, a first display screen and a second display screen are arranged in the frame.
Compared with the prior art, the invention has the beneficial effects that:
according to the quality detection using method of the PCB, the detection position of the electronic screen is adjusted through the adjusting mechanism, and the position detected by the electronic screen is automatically controlled in real time by the calibrating mechanism, so that semi-automation is realized, the accuracy of the whole detection of the circuit board is improved, the detection efficiency of the circuit board is also greatly improved, the labor intensity of operators is reduced, the inaccurate detection is caused, the electronic screen is lightened by adopting an upper-lower pressing power-on mode, the operator can observe more intuitively, the display is more obvious, and the missing condition of the detection of the circuit board by the operator is reduced.
Drawings
FIG. 1 is a schematic front view of the overall structure of the present invention;
FIG. 2 is a schematic view of the back of the overall structure of the present invention;
FIG. 3 is a schematic diagram of the overall internal structure of the present invention;
FIG. 4 is a schematic diagram of a connection structure of an electronic screen according to the present invention;
FIG. 5 is a schematic view of a calibration mechanism according to the present invention;
FIG. 6 is a schematic front view of the pressing mechanism of the present invention;
FIG. 7 is a schematic rear view of the press mechanism of the present invention;
FIG. 8 is a schematic view of an adjustment mechanism according to the present invention;
FIG. 9 is a schematic view of a portion of an adjustment mechanism according to the present invention;
fig. 10 is a schematic view of a clamping mechanism according to the present invention.
In the figure: 1. a frame; 2. a first work table; 3. a second work table; 4. an electronic screen; 5. a control board; 6. a calibration mechanism; 601. a first motor; 602. a driving wheel; 603. a driving wheel; 604. a screw rod; 605. a sliding support; 606. a first sliding sleeve; 607. a CCD camera; 608. a spacer bush; 609. a first slide rail; 7. a pressing mechanism; 71. a pressing cylinder; 72. a flat plate; 73. a fixing seat; 74. a lower pressing plate; 75. an upper press plate; 76. a limit sliding rail; 77. a sliding sleeve; 78. an upper pressing seat; 79. a guide rail plate; 8. an adjusting mechanism; 801. a servo motor; 802. rotating the screw rod; 803. a rotating seat; 804. a slide bar; 805. guide sleeve; 806. a second slide rail; 807. a triangle; 808. a second sliding sleeve; 809. a support plate; 810. a screw block; 811. a transverse connection plate; 812. a third sliding sleeve; 813. a connecting plate; 814. a lifting plate; 815. a mounting plate; 9. a clamping mechanism; 91. a linear motor; 92. a cross plate; 93. a first cylinder; 94. a second cylinder; 95. clamping blocks; 96. a clamping plate; 97. a riser; 98. a support plate; 99. a mobile module; 10. a frame plate; 11. a first display screen; 12. a second display screen; 13. and a bearing plate.
Description of the embodiments
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.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a number" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 10, the present invention provides a technical solution:
the quality detection using method of the PCB comprises a frame 1, a first workbench 2 and a second workbench 3 on the frame 1, an electronic screen 4 is arranged in the frame 1, an adjusting mechanism 8 for adjusting the position of the electronic screen 4 is arranged at the bottom of the electronic screen 4, a clamping mechanism 9 for clamping a circuit board is arranged in the frame 1, a pressing mechanism 7 is arranged in the frame 1, a control board 5 is fixedly arranged on the frame 1, and a calibration mechanism 6 is arranged in the frame 1;
the quality detection using method of the PCB comprises the following steps:
step one: fixing, namely firstly, manually placing the electronic screen 4 on the adjusting mechanism 8, and adsorbing and fixing the electronic screen 4 by the mounting plate 815;
step two: moving, the rotation of the servo motor 801 drives the rotation of the rotating screw rod 802, and drives the movement of the triangle 807, so as to drive the lifting plate 814 to move forward and backward accurately, so as to move the mounting plate 815 to a position for detecting lamination accurately;
step three: the two CCD cameras 607 of the calibration mechanism can perform middle-position shooting and positioning on the position of the electronic screen 4 for one shooting so as to input the position coordinate information of the electronic screen 4 into the system;
step four: the installation, the operator places the circuit board from the position of the second workbench 3 onto two clamping plates 96, and two cylinders move to clamp and fix the circuit board;
step five: the shifting module 99 will control the clamping mechanism 9 and the circuit board fixed thereon to move under the two CCD cameras 607;
step six: the two CCD cameras 607 of the calibration mechanism perform position shooting on the circuit board, and the shot position images are also transmitted to the control board 5;
step seven: the system control board 5 performs analysis and calculation on the relative positions of the electronic screen 4 and the circuit board, and transmits the accurate coordinate positions of the detection pressing to the mobile module 99 again after analysis;
step eight: accurate displacement, operation of the moving module 99 and the linear motor 91 to accurately transfer the circuit board to the position to be detected;
step nine: the pressing detection, the control board 5 sends a signal to the pressing cylinder 71, and the movement of the pressing cylinder 71 controls the upper pressing seat 78 to move downwards to drive the upper pressing plate 75 to slightly press the circuit board on the electronic screen 4;
when the electronic screen 4 is on, the product is good;
when the electronic screen 4 is not bright, it represents that the circuit board may have problems;
step ten: after the detection is completed, the mobile module 99 sends the circuit board back, and the operator takes the circuit board to sort the products.
In this embodiment, the calibration mechanism 6 includes a first motor 601, an output end of the first motor 601 is fixedly connected with a driving wheel 602, a surface of the driving wheel 602 is in transmission connection with a surface of the driving wheel 603 through a belt, a frame plate 10 is fixedly connected with an inside of the frame 1, two bearing plates 13 are fixedly connected to the frame plate 10, a screw rod 604 is fixedly connected to an inside of the driving wheel 603, a surface of the screw rod 604 is rotatably connected to the frame plate 10, a sliding support 605 is provided on the screw rod 604, a CCD camera 607 is provided on the sliding support 605, a sliding sleeve 606 is fixedly connected to the sliding support 605, a sliding rail 609 is fixedly installed on the bearing plate 13, the sliding sleeve 606 is in sliding connection with the sliding rail 609, a spacer 608 is sleeved at a middle position of a surface of the screw rod 604, rotation of the first motor 601 is controlled by transmission of the belt pulley, and relative movement of the two sliding supports 605 is directly driven by a threaded connection mode, so that the position of the CCD camera 607 can be flexibly calibrated.
Further, two calibration mechanisms 6 are provided, and the two calibration mechanisms 6 are respectively disposed on the two carrier plates 13, and the two calibration mechanisms 6 are used for respectively controlling the calibration of the electronic screen and the position calibration of the circuit board, and the detected positions are controlled through confirmation of the relative positions of the two calibration mechanisms 6, so that the detected positions of the circuit board and the electronic screen 4 can be well overlapped.
Still further, two sliding supports 605 are provided, the two sliding supports 605 are connected to the screw rod 604 by threads, half of the threads on the surface of the screw rod 604 are left-handed threads, the rotation of the two motors respectively controls the rotation of the two screw rods 604, the two sliding supports 605 are driven to move in a threaded connection mode, half of the sliding supports are right-handed threads, and the two screw rods 604 are provided with half of left-handed threads and half of right-handed threads, so that the two sliding seats on the screw rods can move relatively, and therefore the sliding seats are aligned and shot in a split mode, the whole shooting range is enlarged, and the flexibility is improved.
In addition, pressing mechanism 7 is including pushing down cylinder 71, the flat board 72 of fixedly connected with on pushing down cylinder 71, the bottom fixedly connected with fixing base 73 of flat board 72, flat board 72 fixedly connected with is on frame 1, the output fixedly connected with of pushing down cylinder 71 goes up pressure seat 78, the bottom fixedly connected with top board 75 of pressure seat 78 goes up, the inside of frame 1 is located the below fixedly connected with fixing base 73 of pressure seat 78, fixedly connected with holding down plate 74 on the fixing base 73, the pushing down cylinder 71 pushes down and drives top board 75 and pushes down, carry out the circular telegram contact with the slow pressfitting of circuit board on electronic screen 4, and receive the whole pressfitting of top board 75, make the contact point position of circuit board and electronic screen 4, carry out inseparable laminating, the condition of not having become flexible, maintain accuracy and the stability in the testing process.
In addition, the sliding sleeve 77 is fixedly connected to the upper pressing seat 78, the guide rail plate 79 is fixedly connected to the flat plate 72, the limiting sliding rail 76 is fixedly connected to the guide rail plate 79, the sliding sleeve 77 is in sliding connection with the limiting sliding rail 76, and the conveying position of the lower pressing cylinder 71 can be further limited through the limiting sliding rail 76, so that the lower pressing plate 74 is driven to be vertically pressed downwards, and dislocation and pressing distortion are avoided.
It is worth noting that guiding mechanism 8 includes servo motor 801, servo motor 801's output fixedly connected with rotates lead screw 802, rotate the terminal surface rotation of lead screw 802 and be connected with rotation seat 803, rotation seat 803's bottom fixedly connected with connecting plate 813, fixedly connected with set-square 807 on the connecting plate 813, sliding connection has sliding sleeve two 808 on the set-square 807, be connected with extension board 809 through the bolt on sliding sleeve two 808, fixedly connected with lifter plate 814 on extension board 809, lifter plate 814's top fixedly connected with mounting panel 815, be connected with transverse connection plate 811 through the bolt on the set-square 807, transverse connection plate 811 bottom fixedly connected with screw block 810, screw block 810 and rotation lead screw 802's surface threaded connection, fixedly mounted has slide rail two 806 on the connecting plate 813, slide rail two 806's surface is through sliding sleeve three 812 and set-square 807 sliding connection, through threaded connection's mode will drive transverse connection plate 811 and set-square 807 on the connection, and the movement of set-square 807 will drive lifter plate 814 and carry out the back and forth accurate removal, in order to detect the pressfitting position with the mounting panel 815, thereby carry out the high accuracy to detect the position of pressfitting, make the operation accuracy and make the visual angle of personnel more clear to see the different operation position.
It should be noted that, four sliding rods 804 are disposed at the bottom of the lifting plate 814, the surface of the sliding rod 804 is slidably connected with a guide sleeve 805, the guide sleeve 805 is fixedly connected to the connecting plate 813, and the position of the lifting plate 814 is limited by the disposed four sliding rods 804, so that the lifting plate 814 can also adjust the height while moving forward and backward, thereby realizing the same-direction movement and bidirectional adjustment.
In addition, the clamping mechanism 9 comprises a supporting plate 98, a transverse plate 92 is arranged on the supporting plate 98, a vertical plate 97 is fixedly connected to the transverse plate 92, a first air cylinder 93 is connected to the vertical plate 97 through bolts, a second air cylinder 94 is fixedly connected to the output end of the first air cylinder 93, a clamping block 95 is fixedly connected to the output end of the first air cylinder 93, a clamping plate 96 is fixedly connected to the vertical plate 97, the clamping plate 96 is positioned below the clamping block 95, a linear motor 91 is fixedly arranged on the supporting plate 98, the output end of the linear motor 91 is fixedly connected with the transverse plate 92, a moving module 99 is arranged below the supporting plate 98, the moving module 99 is fixed inside the frame 1 and is used for carrying out integral rapid fixed compression on the circuit board through telescopic movement of the two air cylinders so as to avoid the condition that the circuit board is displaced and misplaced during compression in the detection process, the detection stability of the whole circuit board is further improved, the linear motor 91 will run, the transverse plate 92 is directly driven to ascend or descend, the assembly of the whole fixed circuit board is driven to ascend or descend by the ascending of the transverse plate 92, the height of the circuit board compression detection is adjusted, the device can be flexibly used when the circuit boards with different thicknesses are detected, the moving module 99 drives the connecting plate 813 to move back and forth, the moving module 99 can be a hinge type transmission assembly, the connecting plate 813 is driven by an electric component to move, and the whole clamping mechanism 9 can be stretched back and forth in position under the action of the moving module 99, so that a large space is provided, and operators can conveniently place the circuit boards.
In addition, the first display screen 11 and the second display screen 12 are arranged in the frame 1, and the first display screen 11 and the second display screen 12 can well display the operation of the two stations, so that the operation and the use of the equipment by operators are smoother.
When the quality detection using method of the PCB board is used, firstly, the electronic screen 4 is manually placed on the adjusting mechanism 8, the electronic screen 4 is a detection device, similar to a mobile phone screen, when the circuit board is electrified and an internal circuit is a passage, the electronic screen 4 automatically lights up, so that the quality problem of the circuit board is directly confirmed, when the electronic screen 4 is adsorbed and fixed through the adsorption hole formed on the adjusting mechanism 8, the rotation of the servo motor 801 drives the rotation screw rod 802 through controlling the rotation of the servo motor 801, after the rotation screw rod 802 rotates, the transverse connection plate 811 and the triangular plate 807 connected to the transverse connection plate 811 are driven to move forwards and backwards through a threaded connection mode, the movement of the triangular plate 807 drives the lifting plate 814 to move forwards and backwards accurately, so that the mounting plate 815 is accurately moved to a position for detecting pressing, the three-dimensional electronic screen is limited by four sliding rods 804, so that the triangular plate 807 moves up and down while moving forward and backward to control the height position of the lifting plate 814, thereby precisely adjusting and integrally adjusting the height position of the electronic screen 4, facilitating the operation of operators with different heights, facilitating the use of the whole equipment without limitation, simultaneously facilitating the placement of the electronic screen 4, shooting the position of the electronic screen 4 by a camera below the electronic screen 4, receiving the system of the control board 5, at the moment, the operators can place the circuit board above the two clamping plates 96 from the position of the second workbench 3, after tiling, the second cylinder 94 is contracted to move the clamping block 95 above the circuit board, and then the first cylinder 93 is contracted to directly control the second cylinder 94 and the clamping block 95 to be pressed down, the circuit board is pressed, three rubber chucks are arranged on the clamping block 95, when the clamping block is contacted with the circuit board, the clamping block has certain buffering and protecting effects, after clamping, the moving module 99 can control the movement of the clamping mechanism 9, the moving module 99 can be a hinge transmission component, the whole clamping mechanism 9 is driven to move back and forth through an electric component, when the clamping mechanism is moved to the other two CCD cameras 607 to carry out position shooting on the circuit board, the shot position images are also transferred to the control board 5, the operation of the moving module 99 and the linear motor 91 is controlled through the relative position calculation of the control board 5 on the electronic screen 4 and the circuit board, the circuit board is accurately transferred to the position to be detected, the control board 5 sends a signal to the pressing cylinder 71, the motion of the lower pressing cylinder 71 will control the upper pressing seat 78 to move downwards to drive the upper pressing plate 75 to slightly press the circuit board, so that the circuit board is in close contact with the electric contact position of the electronic screen 4, after the circuit board is in contact with the electronic screen 4, the circuit board is detected by electrifying, after the electronic screen 4 is lighted, the circuit board is good, when the electronic screen 4 is not lighted, the circuit board may have problems, so that the detection personnel can effectively distinguish and detect the circuit board, the whole device adopts a semi-automatic mode to improve the detection efficiency and accuracy of the circuit board, and after the pressing, the pressing mechanism 7 and the clamping mechanism 9 reset to send the circuit board back to the original position, so that the operation personnel can conveniently take the circuit board for sorting.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a quality testing application method of PCB board, includes frame (1), its characterized in that: the electronic screen comprises a frame (1), wherein a first workbench (2) and a second workbench (3) are arranged on the frame (1), an electronic screen (4) is arranged in the frame (1), an adjusting mechanism (8) for adjusting the position of the electronic screen (4) is arranged at the bottom of the electronic screen (4), a clamping mechanism (9) for clamping a circuit board is arranged in the frame (1), a pressing mechanism (7) is arranged in the frame (1), a control board (5) is fixedly arranged on the frame (1), and a calibration mechanism (6) is arranged in the frame (1);
the quality detection using method of the PCB comprises the following steps:
step one: the electronic screen (4) is firstly placed on the adjusting mechanism (8) manually, and the mounting plate (815) adsorbs and fixes the electronic screen (4);
step two: the movement, the rotation of the servo motor (801) drives the rotation of the rotary screw rod (802), and drives the movement of the triangular plate (807) to drive the lifting plate (814) to move back and forth accurately so as to move the mounting plate (815) to a position for detecting pressing accurately;
step three: the two CCD cameras (607) of the calibration mechanism (6) can perform shooting and positioning in a divided mode on the position of the electronic screen (4) for inputting the position coordinate information of the electronic screen (4) into the system;
step four: the installation, the operator places the circuit board from the position of the second workbench (3) onto two clamping plates (96), and two cylinders move to clamp and fix the circuit board;
step five: the shifting module (99) controls the clamping mechanism (9) and the circuit board fixed on the clamping mechanism to move to the lower parts of the two CCD cameras (607);
step six: the two CCD cameras (607) of the calibration mechanism (6) carry out position shooting on the circuit board, and the shot position images are also transmitted to the control board (5);
step seven: the system control board (5) performs analysis and calculation on the relative positions of the electronic screen (4) and the circuit board, and after analysis, the accurate coordinate positions of detection pressing are transmitted to the mobile module (99) again;
step eight: the accurate displacement, the operation of the moving module (99) and the linear motor (91) are used for accurately transferring the circuit board to the position to be detected;
step nine: the pressing detection, the control board (5) sends a signal to the lower pressing cylinder (71), and the lower pressing cylinder (71) moves to control the upper pressing seat (78) to move downwards so as to drive the upper pressing plate (75) to slightly press the circuit board on the electronic screen (4);
when the electronic screen (4) is lightened, the electronic screen represents good products;
when the electronic screen (4) is not bright, the circuit board can have problems;
step ten: resetting, after detection, the mobile module (99) can send the circuit board back to the original path, and an operator takes the circuit board to classify products.
2. The quality inspection and use method of a PCB according to claim 1, wherein: the calibrating mechanism (6) comprises a first motor (601), the output end of the first motor (601) is fixedly connected with a driving wheel (602), the surface of the driving wheel (602) is in transmission connection with the surface of a driving wheel (603) through a belt, a frame plate (10) is fixedly connected to the inside of the frame (1), two bearing plates (13) are fixedly connected to the frame plate (10), a screw rod (604) is fixedly connected to the inside of the driving wheel (603), the surface of the screw rod (604) is rotationally connected to the frame plate (10), a sliding support (605) is arranged on the screw rod (604), a CCD camera (607) is arranged on the sliding support (605), a sliding sleeve I (606) is fixedly connected to the surface of the driving wheel (603), a sliding rail I (609) is fixedly installed on the bearing plate (13), and a spacer sleeve (608) is sleeved at the middle position of the surface of the screw rod (604).
3. The quality inspection and use method of a PCB according to claim 2, wherein: the number of the calibration mechanisms (6) is two, and the two calibration mechanisms (6) are respectively arranged on the two bearing plates (13).
4. The quality inspection and use method of a PCB according to claim 2, wherein: the number of the sliding supports (605) is two, the two sliding supports (605) are connected to the screw rod (604) in a threaded mode, half of threads on the surface of the screw rod (604) are left-handed threads, and half of the threads are right-handed threads.
5. The quality inspection and use method of a PCB according to claim 1, wherein: pressing mechanism (7) are including pushing down cylinder (71), the flat board (72) of fixedly connected with on pushing down cylinder (71), the bottom fixedly connected with fixing base (73) of flat board (72), flat board (72) fixedly connected with is on frame (1), the output fixedly connected with of pushing down cylinder (71) pushes up seat (78), the bottom fixedly connected with top board (75) of pushing up seat (78), the inside of frame (1) is located the below fixedly connected with fixing base (73) of pushing up seat (78), fixedly connected with holding down plate (74) on fixing base (73).
6. The method for detecting and using the quality of the PCB according to claim 5, wherein the method comprises the following steps: the upper pressing seat (78) is fixedly connected with a sliding sleeve (77), the flat plate (72) is fixedly connected with a guide rail plate (79), the guide rail plate (79) is fixedly connected with a limiting sliding rail (76), and the sliding sleeve (77) is in sliding connection with the limiting sliding rail (76).
7. The quality inspection and use method of a PCB according to claim 1, wherein: adjustment mechanism (8) is including servo motor (801), servo motor (801) output fixedly connected with rotates lead screw (802), the terminal surface rotation of rotating lead screw (802) is connected with rotation seat (803), the bottom fixedly connected with connecting plate (813) of rotation seat (803), fixedly connected with set square (807) on connecting plate (813), sliding connection has sliding sleeve two (808) on set square (807), through bolted connection with extension board (809) on sliding sleeve two (808), fixedly connected with lifter plate (814) on extension board (809), top fixedly connected with mounting panel (815) of lifter plate (814), through bolted connection on set square (807) transverse connection board (811), transverse connection board (811) bottom fixedly connected with thread block (810), thread block (810) and the surface threaded connection of rotating lead screw (802), fixedly mounted on connecting plate (813) has sliding rail two (806), sliding rail two (806)'s surface is through three (812) sliding connection with set square.
8. The quality inspection and use method of a PCB according to claim 7, wherein: the bottom of lifter plate (814) is provided with four slide bars (804), the surface sliding connection of slide bar (804) has guide pin bushing (805), guide pin bushing (805) fixed connection is on connecting plate (813).
9. The quality inspection and use method of a PCB according to claim 1, wherein: the clamping mechanism (9) comprises a supporting plate (98), a transverse plate (92) is arranged on the supporting plate (98), a vertical plate (97) is fixedly connected to the transverse plate (92), a first cylinder (93) is connected to the vertical plate (97) through a bolt, a second cylinder (94) is fixedly connected to the output end of the first cylinder (93), a clamping block (95) is fixedly connected to the output end of the first cylinder (93), a clamping plate (96) is fixedly connected to the vertical plate (97), the clamping plate (96) is located below the clamping block (95), a linear motor (91) is fixedly arranged on the supporting plate (98), the output end of the linear motor (91) is fixedly connected with the transverse plate (92), a moving module (99) is arranged below the supporting plate (98), and the moving module (99) is fixed inside the frame (1).
10. The quality inspection and use method of a PCB according to claim 1, wherein: a first display screen (11) and a second display screen (12) are arranged in the frame (1).
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| CN114162376B (en) * | 2021-11-24 | 2023-04-25 | 龙岩烟草工业有限责任公司 | Method and device for detecting appearance quality of tobacco packet |
| CN114325313B (en) * | 2021-12-23 | 2024-08-13 | 杭州仁牧科技有限公司 | Intelligent automatic test system based on low-frequency circuit and test method thereof |
| CN114143974B (en) * | 2022-01-30 | 2022-05-10 | 深圳市浩创盛科技有限公司 | PCB image alignment detection device and alignment detection method |
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