CN117368693B - Main control circuit board performance detection device in display - Google Patents
Main control circuit board performance detection device in display Download PDFInfo
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- CN117368693B CN117368693B CN202311336186.3A CN202311336186A CN117368693B CN 117368693 B CN117368693 B CN 117368693B CN 202311336186 A CN202311336186 A CN 202311336186A CN 117368693 B CN117368693 B CN 117368693B
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- detection table
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- 238000001514 detection method Methods 0.000 title claims abstract description 81
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims description 11
- 229910052573 porcelain Inorganic materials 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- 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
- G01R1/0425—Test clips, e.g. for IC's
-
- 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
- G01R1/16—Magnets
-
- 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
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to the technical field of circuit board detection and provides a main control circuit board performance detection device in a display, which comprises a detection table, wherein the outer surface of the detection table is provided with a lifting structure, the outer surface of the detection table is respectively provided with an adjusting structure and a clamping structure, the lifting structure comprises a movable plate, the lower end of the movable plate is provided with a test pen, a movable structure is arranged between the test pen and the movable plate, and the outer surface of the detection table is fixedly connected with a PLC control display table; the adjusting structure comprises a magnetic force adjusting assembly and a current adjusting assembly, the magnetic force adjusting assembly comprises a swivel rotationally connected to the outer surface of the detection table, the outer surface of the swivel is fixedly connected with a positive electromagnet and a negative electromagnet respectively, the lower end of the swivel is fixedly connected with a gear ring, and one side of the gear ring is connected with a driving gear in a meshed mode. Through the technical scheme, the problem that the existing main control circuit board performance detection device has no magnetic field adjusting function and cannot measure electric variables according to different sizes of current is solved.
Description
Technical Field
The invention relates to the technical field of circuit board detection, in particular to a main control circuit board performance detection device in a display.
Background
The circuit board is an important component in the electronic equipment, the circuit board in the display is mainly used for maintaining the normal display of the display screen, and the circuit board is usually provided with various electronic components to meet the normal operation of the display;
according to the device, the circuit board to be detected is placed on the bottom plate, and then the handle is pressed to enable the pressing plate to drive the test meter pen to descend and contact with the test point on the circuit board, so that the detection efficiency of the circuit board is improved, the acting force when the test meter pen contacts with the circuit board can be buffered through the arrangement of the second spring, and damage to the test meter pen or the circuit board caused by overlarge acting force when the test meter pen contacts with the circuit board is avoided;
however, the above-mentioned existing main control circuit board performance detection device has no magnetic field adjusting function, and cannot measure electric variables according to different magnitudes of current, therefore we propose a main control circuit board performance detection device in a display.
Disclosure of Invention
The invention provides a main control circuit board performance detection device in a display, which solves the problems that the existing main control circuit board performance detection device in the related art has no magnetic field adjusting function and cannot measure electric variables according to different magnitudes of current.
The technical scheme of the invention is as follows:
the main control circuit board performance detection device in the display comprises a detection table, wherein the outer surface of the detection table is provided with a lifting structure, the outer surface of the detection table is respectively provided with an adjusting structure and a clamping structure, the lifting structure comprises a movable plate, the lower end of the movable plate is provided with a test pen, a movable structure is arranged between the test pen and the movable plate, and the outer surface of the detection table is fixedly connected with a PLC control display table;
the adjusting structure comprises a magnetic force adjusting assembly and a current adjusting assembly, the magnetic force adjusting assembly comprises a swivel connected to the outer surface of the detection table in a rotating mode, a positive magnet and a negative magnet are fixedly connected to the outer surface of the swivel respectively, a gear ring is fixedly connected to the lower end of the swivel, a driving gear is connected to one side of the gear ring in a meshed mode, and a servo motor is arranged on the inner outer surface of the detection table corresponding to the outer surface of the driving gear.
As a further technical scheme of the invention, the clamping structure comprises a concave hole formed in the outer surface of the detection table, a connecting column is movably arranged in the concave hole, a telescopic rod is embedded in the outer surface of the detection table, the output end of the telescopic rod is fixedly connected with a fixing support, one end of the fixing support and the outer surface of the connecting column are fixedly connected with a clamping assembly, a spherical groove is formed in the detection table corresponding to the lower end of the concave hole, and the lower end of the connecting column is fixedly connected with a connecting ball.
As a further technical scheme of the invention, the lifting structure comprises a threaded rod which is rotationally connected to the outer surface of the detection table, two groups of positioning rods are symmetrically arranged on the outer surface of the detection table near the threaded rod, one end of the movable plate is fixedly connected with a connecting block, the outer surface of the connecting block is respectively provided with a threaded hole and a guide hole, the outer surface of the detection table near the threaded rod and the positioning rods is fixedly connected with a protective shell, and guide grooves matched with the edges of the two sides of the protective shell are formed on the outer surfaces of the two sides of the connecting block.
As a further technical scheme of the invention, the moving structure comprises a longitudinal sliding rail fixedly connected to the outer surface of the lower end of the movable plate, a longitudinal sliding block is slidably connected to the outer surface of the longitudinal sliding rail, a transverse sliding rail is fixedly connected to the outer surface of the longitudinal sliding block, a transverse sliding block is slidably connected to the outer surface of the transverse sliding rail, and the test pen is fixedly connected to the outer surface of the transverse sliding block.
As a further technical scheme of the invention, the current adjusting component comprises a sliding rheostat arranged on the outer surface of the detection table, the sliding rheostat consists of a coil, a metal rod, a sliding sheet and a porcelain tube, the coil is wound on the outer surface of the porcelain tube, the sliding sheet, the metal rod and the coil are in sliding connection, return springs are arranged between the sliding sheet and two ends of the metal rod, a limiting block is fixedly connected to the position, corresponding to the coil end, of the outer surface of the porcelain tube, an arc-shaped groove is formed in the detection table, corresponding to the side edge of a rotating ring, a connecting groove is formed in one side, close to the sliding rheostat, of the arc-shaped groove, the connecting position, corresponding to the arc-shaped groove and the connecting groove, of the detection table is in arc-shaped chamfer arrangement, and an elastic rope is connected between one side of the rotating ring and the sliding sheet.
As a further technical scheme of the invention, the swivel and the gear ring are in rotary connection with the detection table, the driving gear is in rotary connection with the detection table, the servo motor is in movable connection with the detection table through a screw, the driving gear is driven by the servo motor to rotate, two ends of the elastic rope are fixedly connected with the swivel and the sliding vane respectively, the PLC control display meter is used for controlling the starting operation and the closing of the servo motor, the sliding vane is driven by the clockwise rotation and anticlockwise rotation of the swivel to move back and forth on the coil, and the sliding vane is kept in the middle of the metal rod under the state of no external force through the reset spring.
As a further technical scheme of the invention, the clamping assembly comprises a positioning block which is respectively and fixedly connected with the upper end of the connecting column and one end of the fixed support, the lower end of the positioning block is rotationally connected with a rotating plate, the rotating plate and the positioning block are in hinged connection through a hinge piece, the lower end of the rotating plate is rotationally connected with a limiting wheel, and the outer surface of the rotating plate is fixedly connected with an arc-shaped rod.
As a further technical scheme of the invention, the number of the concave holes is a plurality of groups and is distributed in an array, the arc-shaped rods are arranged in an arc-shaped structure, one end of each arc-shaped rod penetrates through each positioning block, the outer surface of each arc-shaped rod is movably sleeved with a jacking spring, the axle center of each jacking spring coincides with the axle center of each arc-shaped rod, two ends of each jacking spring are fixedly connected with the rotating plate and each positioning block respectively, the connecting columns are matched with the concave holes, the connecting balls are matched with the spherical grooves, the connecting balls are made of elastic materials, the lower ends of the positioning blocks are attached to the outer surface of the upper end of the detection table, the PLC control display table is used for controlling the expansion and the contraction of the telescopic rods, and the fixing support is of an L-shaped plate structure.
As a further technical scheme of the invention, the aperture of the guide hole is matched with the diameter of the positioning rod, the threaded hole is in threaded connection with the threaded rod, the threaded rod is driven to rotate by a motor, the connecting block is driven to slide up and down along the length direction of the positioning rod by clockwise and anticlockwise rotation of the threaded rod, so that the movable plate is lifted, and the PLC control display meter is used for controlling the operation and closing of the motor for driving the threaded rod to rotate.
As a further technical scheme of the invention, the longitudinal sliding rails are two groups of linear sliding rails which are transversely arranged and parallel to each other, the number of the longitudinal sliding rails corresponding to one group of longitudinal sliding blocks is two groups, each group of longitudinal sliding blocks on two different longitudinal sliding rails is fixedly connected with one group of transverse sliding rails, the number of the transverse sliding blocks corresponding to the test pens is two groups, the longitudinal sliding rails are perpendicular to the transverse sliding rails, and the PLC control display table is used for controlling the longitudinal sliding blocks and the transverse sliding blocks on the outer surfaces of the longitudinal sliding rails and the transverse sliding rails to move back and forth.
The working principle and the beneficial effects of the invention are as follows:
1. according to the invention, through the effect of the adjusting structure, different currents can be introduced in the process of detecting the circuit board in the use process, and magnetic fields with different magnitudes can be simulated at the same time, so that the electric variable and the magnetic variable in the use process of the circuit board can be detected.
2. According to the invention, through the action of the clamping structure, the side edges of the circuit boards with different sizes can be clamped and fixed, and meanwhile, the circuit boards can be pressed and fixed downwards, so that the circuit boards can be conveniently detected.
3. According to the invention, through the effect of the lifting structure, the connecting block and the movable plate can move up and down along the length direction of the positioning rod through forward and reverse rotation of the motor, so that the outer surface of the circuit board can be detected by matching with the test pen.
4. According to the invention, through the action of the moving structure, the transverse sliding block and the longitudinal sliding block respectively slide on the transverse sliding rail and the longitudinal sliding rail, so that the test pen can detect different positions corresponding to the circuit board, and simultaneously, the test pen can detect different positions of the circuit board with different sizes by matching with the action of the clamping structure.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective in accordance with the present invention;
FIG. 3 is a schematic view of a magnetic force adjusting assembly of the present invention in partial construction with a section;
FIG. 4 is a schematic view of a rear section of a test bed according to the present invention;
FIG. 5 is a schematic view of a partial structure of the current regulation assembly of the present invention in section;
FIG. 6 is an enlarged view of a portion of the structure of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of a portion of the structure of a set of clamping assemblies of the present invention removed and installed;
FIG. 8 is a partial side sectional view of FIG. 7 in which (a) is a partial side sectional view of the clamping assembly and (b) is a partial side sectional view of the spherical slot in accordance with the present invention;
FIG. 9 is a schematic view of a portion of the structure of the clamping assembly of the present invention;
FIG. 10 is a schematic view of a part of the structure of the removable plate of the present invention;
FIG. 11 is a schematic view of a part of a moving structure according to the present invention;
fig. 12 is a structural view of a circuit board tested in the present invention.
In the figure: 1. a detection table; 2. a lifting structure; 21. a movable plate; 22. a joint block; 23. a threaded rod; 24. a positioning rod; 25. a protective shell; 26. a threaded hole; 27. a guide hole; 28. a guide groove; 3. a test pen; 4. an adjustment structure; 41. a magnetic force adjusting component; 411. a swivel; 412. a positive magnet; 413. a negative magnet; 414. a gear ring; 415. a drive gear; 416. a servo motor; 42. a current regulation assembly; 421. an arc-shaped groove; 422. a connection groove; 423. an elastic rope; 424. a slide rheostat; 4241. a coil; 4242. a metal rod; 4243. a sliding sheet; 4244. a porcelain tube; 425. a limiting block; 426. a return spring; 5. a clamping structure; 51. a concave hole; 52. a connecting column; 53. a telescopic rod; 54. a fixed bracket; 55. a clamping assembly; 551. a positioning block; 552. a rotating plate; 553. a limiting wheel; 554. a hinge; 555. an arc-shaped rod; 556. a top-moving spring; 56. a spherical groove; 57. a connecting ball; 6. a moving structure; 61. a longitudinal slide rail; 62. a longitudinal slide block; 63. a transverse slide rail; 64. a transverse sliding block; 7. the PLC controls the display table.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.
Example 1
As shown in fig. 1, this embodiment provides a main control circuit board performance detection device in display, including detecting platform 1, the surface of detecting platform 1 is provided with elevation structure 2, and the surface of detecting platform 1 is provided with regulation structure 4 and clamping structure 5 respectively, and elevation structure 2 includes fly leaf 21, and the lower extreme of fly leaf 21 is provided with test pen 3, is provided with movable structure 6 between test pen 3 and the fly leaf 21, and the surface fixedly connected with PLC control display table 7 of detecting platform 1.
Example 2
As shown in fig. 2 to 6 and fig. 12, on the basis of embodiment 1, it is further proposed that the adjusting structure 4 comprises a magnetic force adjusting component 41 and a current adjusting component 42, the magnetic force adjusting component 41 comprises a rotating ring 411 rotatably connected to the outer surface of the detection platform 1, the outer surface of the rotating ring 411 is fixedly connected with a positive magnet 412 and a negative magnet 413 respectively, the lower end of the rotating ring 411 is fixedly connected with a gear ring 414, one side of the gear ring 414 is in meshed connection with a driving gear 415, and a servo motor 416 is arranged on the inner outer surface of the detection platform 1 corresponding to the outer surface of the driving gear 415; the current adjusting component 42 comprises a slide rheostat 424 arranged on the outer surface of the detection table 1, the slide rheostat 424 consists of a coil 4241, a metal rod 4242, a sliding vane 4243 and a porcelain tube 4244, the coil 4241 is wound on the outer surface of the porcelain tube 4244, the sliding vane 4243 is in sliding connection with the metal rod 4242 and the coil 4241, return springs 426 are arranged between the sliding vane 4243 and two ends of the metal rod 4242, a limiting block 425 is fixedly connected to the end position of the outer surface of the porcelain tube 4244 corresponding to the coil 4241, an arc-shaped groove 421 is formed in the inner part of the detection table 1 corresponding to the side edge of the rotating ring 411, a connecting groove 422 is formed in one side, close to the slide rheostat 424, of the arc-shaped groove 421 and the connecting groove 422 are arranged in an arc-shaped chamfer, and an elastic rope 423 is connected between one side of the rotating ring 411 and the sliding vane 4243; the swivel 411 and the gear ring 414 are both in rotary connection with the detection table 1, the driving gear 415 is in rotary connection with the detection table 1, the servo motor 416 is in movable connection with the detection table 1 through screws, the driving gear 415 is driven by the servo motor 416 to rotate, two ends of the elastic rope 423 are fixedly connected with the swivel 411 and the sliding piece 4243 respectively, the PLC controls the display table 7 to control the starting operation and closing of the servo motor 416, the sliding piece 4243 is driven to move back and forth on the coil 4241 through clockwise rotation and anticlockwise rotation of the swivel 411, and the sliding piece 4243 is kept in the middle of the metal rod 4242 under the state of no external force through the reset spring 426.
In the detection process, the driving gear 415 can be driven to rotate through the servo motor 416, so that the gear ring 414 can rotate in a following manner, the rotating ring 411 can be driven to rotate through the rotation of the gear ring 414, when the positive magnet 412 is positioned at one end of the arc-shaped groove 421, the positive magnet 412 can also be positioned at the other side of the arc-shaped groove 421 through the reverse rotation of the servo motor 416, in the rotating process of the rotating ring 411, the elastic rope 423 can stretch and drive the sliding vane 4243 to move, the maximum moving distance of the sliding vane 4243 is two groups of limiting blocks 425, three groups of current magnitudes are formed through the adjustment of the sliding rheostat 424, the current is the smallest when the sliding vane 4243 is attached to one group of limiting blocks 425, the current is the largest when the sliding vane 4243 is attached to the other group of limiting blocks 425, and the current is the medium magnitude when the sliding vane 4243 is positioned at the middle position of the coil 4241;
in the use process, currents with different magnitudes and intensities are introduced in the detection process of the circuit board, and meanwhile magnetic fields with different magnitudes can be simulated according to the current change, so that electric variables and magnetic variables in the use process of the circuit board can be detected, the situation of being close to actual use is simulated, and the detection meets the requirements in the actual use.
Example 3
As shown in fig. 7 to 9, on the basis of embodiment 2, it is further proposed that the clamping structure 5 comprises a concave hole 51 formed in the outer surface of the detection platform 1, a connection column 52 is movably arranged in the concave hole 51, a telescopic rod 53 is embedded in the outer surface of the detection platform 1, the output end of the telescopic rod 53 is fixedly connected with a fixing bracket 54, one end of the fixing bracket 54 and the outer surface of the connection column 52 are fixedly connected with a clamping assembly 55, a spherical groove 56 is formed in the inner part of the detection platform 1 corresponding to the lower end of the concave hole 51, and the lower end of the connection column 52 is fixedly connected with a connection ball 57; the clamping assembly 55 comprises a positioning block 551 which is respectively and fixedly connected with the upper end of the connecting column 52 and one end of the fixed support 54, the lower end of the positioning block 551 is rotationally connected with a rotating plate 552, the rotating plate 552 and the positioning block 551 are in hinged connection through a hinge piece 554, the lower end of the rotating plate 552 is rotationally connected with a limiting wheel 553, and the outer surface of the rotating plate 552 is fixedly connected with an arc-shaped rod 555; the quantity of concave hole 51 is a plurality of groups and is the array distribution, arc pole 555 is the arc structure setting, the one end of arc pole 555 runs through in locating piece 551, the surface activity of arc pole 555 has cup jointed a movable spring 556, and the axle center of movable spring 556 coincides with the axle center of arc pole 555, the both ends of movable spring 556 respectively with rolling plate 552 and locating piece 551 looks fixed connection, link up post 52 and concave hole 51 assorted, link up ball 57 and spherical groove 56 assorted, link up ball 57 is elastic material, the lower extreme of locating piece 551 is laminated with the upper end surface of detecting bench 1 mutually, PLC control display table 7 is used for controlling the flexible of telescopic link 53, the fixed bolster 54 is "L" platykurtic.
When the circuit board is used, a user can respectively correspond to two groups of positioning blocks 551 with connecting columns 52 at the notches at two corners of the circuit board, then the fixing support 54 can drive the positioning blocks 551 to move towards the circuit board through contraction of the telescopic rods 53, then the limiting wheels 553 can firstly form line contact with the outer surface of the circuit board, in the process, the rotating plate 552 can rotate with the axle center of the hinge piece 554, meanwhile, the limiting wheels 553 can rotate, meanwhile, the rotating plate 552 can extrude the pushing spring 556 to contract, the upper end of the arc-shaped rod 555 can push a part upwards from the upper end of the positioning blocks 551, then the outer surface of the lower end of the positioning blocks 551 is attached to the circuit board, then the circuit board is pushed, the edge of the circuit board is attached to the other two groups of positioning blocks 551, the side edges of the circuit board are clamped through the positioning blocks 551, and the upper end of the circuit board is pressed on the outer surface of the detection table 1 through the limiting wheels 553, so that the circuit board is clamped and fixed;
the circuit board clamping device has the advantages that the circuit boards with different sizes can be clamped and fixed on the side edges during use, meanwhile, the circuit boards can be pressed downwards and fixed, the circuit boards can be clamped and fixed in the horizontal direction and the vertical direction, the circuit boards with different sizes are fixed in position, and detection of the circuit boards is facilitated.
Example 4
As shown in fig. 10, on the basis of embodiment 3, it is further proposed that the lifting structure 2 comprises a threaded rod 23 rotatably connected to the outer surface of the detection platform 1, two groups of positioning rods 24 are symmetrically arranged on the outer surface of the detection platform 1 near the threaded rod 23, one end of the movable plate 21 is fixedly connected with a connecting block 22, the outer surface of the connecting block 22 is respectively provided with a threaded hole 26 and a guide hole 27, the positions, near the threaded rod 23 and the positioning rods 24, of the outer surface of the detection platform 1 are fixedly connected with a protective shell 25, and the outer surfaces of two sides of the connecting block 22 are provided with guide grooves 28 matched with the edges of two sides of the protective shell 25; the aperture of the guide hole 27 is matched with the diameter of the positioning rod 24, the threaded hole 26 is in threaded connection with the threaded rod 23, the threaded rod 23 is driven to rotate through a motor, the connecting block 22 is driven to slide up and down along the length direction of the positioning rod 24 through clockwise and anticlockwise rotation of the threaded rod 23, the movable plate 21 is lifted, and the PLC control display table 7 is used for controlling the running and closing of the motor for driving the threaded rod 23 to rotate.
When the circuit board is used, the connecting block 22 and the movable plate 21 can move up and down along the length direction of the positioning rod 24 through forward and reverse rotation of the motor, so that the outer surface of the circuit board can be detected by matching with the test pen 3.
Example 5
As shown in fig. 11, on the basis of embodiment 4, it is further proposed that the moving structure 6 includes a longitudinal sliding rail 61 fixedly connected to the outer surface of the lower end of the movable plate 21, the outer surface of the longitudinal sliding rail 61 is slidably connected with a longitudinal sliding block 62, the outer surface of the longitudinal sliding block 62 is fixedly connected with a transverse sliding rail 63, the outer surface of the transverse sliding rail 63 is slidably connected with a transverse sliding block 64, and the test pen 3 is fixedly connected to the outer surface of the transverse sliding block 64; the longitudinal sliding rails 61 are two groups of linear sliding rails which are transversely arranged and parallel to each other, the number of the longitudinal sliding rails 61 corresponding to the longitudinal sliding blocks 62 is two, each group of longitudinal sliding blocks 62 on two different longitudinal sliding rails 61 is fixedly connected with one group of transverse sliding rails 63, the number of the transverse sliding blocks 64 corresponding to the test pens 3 is two, the longitudinal sliding rails 61 are perpendicular to the transverse sliding rails 63, and the PLC control display table 7 is used for controlling the longitudinal sliding blocks 62 and the transverse sliding blocks 64 on the outer surfaces of the longitudinal sliding rails 61 and the transverse sliding rails 63 to move back and forth.
During the use, slide on horizontal slide rail 63 and vertical slide rail 61 respectively through horizontal slide block 64 and vertical slide block 62, can make test pen 3 detect corresponding to the different positions on the circuit board, cooperate the effect of clamp structure 5 simultaneously, can detect the different positions of equidimension circuit board for the testing process degree of automation is higher, promotes detection efficiency, avoids the error that the manual detection exists, and detection reliability is higher.
In summary, the application process and principle of the invention are as follows:
when the circuit board is used, a user can respectively correspond to two groups of positioning blocks 551 with connecting columns 52 at the notches at two corners of the circuit board, then the fixing support 54 can drive the positioning blocks 551 to move towards the circuit board through contraction of the telescopic rods 53, then the limiting wheels 553 can firstly form line contact with the outer surface of the circuit board, in the process, the rotating plate 552 can rotate at the axle center of the hinge piece 554, meanwhile, the limiting wheels 553 can rotate, meanwhile, the rotating plate 552 can press the pushing spring 556 to contract, the upper end of the arc-shaped rod 555 can push a part upwards from the upper end of the positioning blocks 551, then the outer surface of the lower end of the positioning blocks 551 is attached to the circuit board, then the circuit board is pushed, the edge of the circuit board is attached to the other two groups of positioning blocks 551, the side edges of the circuit board are clamped through the positioning blocks 551, and the upper end of the circuit board is pressed on the outer surface of the detection table 1 through the limiting wheels 553, so that the circuit board is clamped and fixed;
after the circuit board is fixed, the threaded rod 23 is driven to rotate by the motor, the connecting block 22 and the movable plate 21 move downwards, in the moving process, the transverse sliding rail 63 is in different orientations by the movement of the longitudinal sliding block 62, then the test pen 3 is driven to move by the movement of the transverse sliding block 64, so that the detection part on the test pen 3 corresponds to the position to be detected on the circuit board, the movable plate 21 moves downwards continuously until the test pen 3 moves to the outer surface of the circuit board and contacts with the circuit board, the electric variable and the magnetic variable of the circuit board are detected, and after the detection is completed, the motor rotates reversely, the connecting block 22 and the movable plate 21 move upwards, so that the detection is completed.
It should be noted that, in the detection process, the driving gear 415 may be driven to rotate by the servo motor 416, so that the gear ring 414 may follow the rotation, the swivel 411 may be driven to rotate by the rotation of the gear ring 414, when the positive magnet 412 is located at one end of the arc-shaped slot 421, the positive magnet 412 may also be made to reversely rotate by the servo motor 416, so that the positive magnet 412 is located at the other side of the arc-shaped slot 421, in the rotation process of the swivel 411, the elastic cord 423 may stretch and drive the slide 4243 to move, the maximum moving distance of the slide 4243 is two groups of limiting blocks 425, three groups of current sizes are formed by adjustment of the slide varistors 424, when the slide 4243 is attached to one group of limiting blocks 425, the current is the smallest when the slide 4243 is attached to the other group of limiting blocks 425, and when the slide 4243 is located at the middle position of the coil 4241, the current is the medium size, the size of the circuit board may be detected by the effect of the slide varistors 424, and the different sizes of the circuit board may be detected when the current of the slide varistors 412 is supplied to the negative magnet and the positive magnet 42is different sizes, and the magnetic force influencing the circuit 413 is detected.
It should be noted that, the mode that test pen 3 is used for detecting the circuit board is the same with current mature detection technique, and whole equipment is the automated inspection's state after putting into the circuit board, and the operation detection is accomplished through PLC control display table 7 automatic control, and the result of detection passes through PLC control display table 7 visual display simultaneously, and PLC control display table 7 automatic control is through the automatic control function of accomplishing of current PLC controller setting programming logic, and PLC control display table 7 is used for controlling the operation of detecting of whole device, including each electrical component in the device.
It should be noted that, when the circuit boards with different sizes need to be detected, the user can grasp the positioning block 551 with the connecting post 52 and vertically pull the positioning block 551 upwards, so that the positioning block 551 drives the connecting post 52 and the connecting ball 57 to separate from the concave hole 51 and the spherical groove 56 respectively, and then vertically presses down the connecting ball 57 at the lower end of the positioning block 551 corresponding to the concave hole 51 at a proper position, so that the connecting ball 57 is clamped in the spherical groove 56, and meanwhile, the connecting post 52 is clamped in the concave hole 51, namely, the effect of pressing and fixing the circuit boards with different sizes is realized by changing the position of the positioning block 551.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The utility model provides a master control circuit board performance detection device in display, its characterized in that, including detecting platform (1), the surface of detecting platform (1) is provided with elevation structure (2), the surface of detecting platform (1) is provided with regulation structure (4) and clamping structure (5) respectively, elevation structure (2) include fly leaf (21), the lower extreme of fly leaf (21) is provided with test pen (3), be provided with movable structure (6) between test pen (3) and fly leaf (21), the surface fixedly connected with PLC control display table (7) of detecting platform (1);
the magnetic force adjusting mechanism (4) comprises a magnetic force adjusting component (41) and a current adjusting component (42), the magnetic force adjusting component (41) comprises a rotating ring (411) which is rotationally connected to the outer surface of the detecting table (1), the outer surface of the rotating ring (411) is fixedly connected with a positive magnet (412) and a negative magnet (413) respectively, the lower end of the rotating ring (411) is fixedly connected with a gear ring (414), one side of the gear ring (414) is connected with a driving gear (415) in a meshed manner, the outer surface of the inner outer surface of the detecting table (1) is provided with a servo motor (416) corresponding to the outer surface of the driving gear (415), the current adjusting component (42) comprises a slide rheostat (424) which is arranged on the outer surface of the detecting table (1), the slide rheostat (424) consists of a coil (4241), a metal rod (4242), a slide sheet (4243) and a porcelain cylinder (4244), the coil (4241) is wound on the outer surface of the porcelain cylinder (4244), the slide sheet (4242) is in sliding connection with the coil (4241) and the coil 4241) respectively, the slide sheet (4242) is provided with the coil 4241) and the coil 4241) is in sliding connection with the outer surface of the porcelain cylinder (4242) respectively, and the coil 4244) is provided with a stop block (4244) and the corresponding to the two ends of the coil end (4242), an arc groove (421) is formed in the detection table (1) corresponding to the side edge of the swivel (411), a connecting groove (422) is formed in one side, close to the slide rheostat (424), of the arc groove (421), the connecting part, corresponding to the arc groove (421) and the connecting groove (422), of the detection table (1) is in arc chamfer arrangement, and an elastic rope (423) is connected between one side of the swivel (411) and the slide sheet (4243);
the magnitude of the electrical variable of the circuit board under the influence of three current magnitudes can be detected through the action of the sliding rheostat (424), meanwhile, currents with different magnitudes are supplied for the negative magnet (413) and the positive magnet (412), and the magnetic variable of the circuit board under the influence of different magnetic forces can be detected.
2. The device for detecting the performance of the main control circuit board in the display according to claim 1, wherein the clamping structure (5) comprises a concave hole (51) formed in the outer surface of the detection table (1), a connecting column (52) is movably arranged in the concave hole (51), a telescopic rod (53) is embedded in the outer surface of the detection table (1), the output end of the telescopic rod (53) is fixedly connected with a fixing support (54), one end of the fixing support (54) and the outer surface of the connecting column (52) are fixedly connected with a clamping assembly (55), a spherical groove (56) is formed in the inner part of the detection table (1) corresponding to the lower end of the concave hole (51), and a connecting ball (57) is fixedly connected with the lower end of the connecting column (52).
3. The device for detecting the performance of the main control circuit board in the display according to claim 1, wherein the lifting structure (2) comprises a threaded rod (23) which is rotationally connected to the outer surface of the detection table (1), two groups of positioning rods (24) are symmetrically arranged on the outer surface of the detection table (1) close to the threaded rod (23), one end of the movable plate (21) is fixedly connected with a connecting block (22), threaded holes (26) and guide holes (27) are respectively formed in the outer surface of the connecting block (22), a protecting shell (25) is fixedly connected to the outer surface of the detection table (1) close to the threaded rod (23) and the positioning rod (24), and guide grooves (28) matched with two side edges of the protecting shell (25) are formed in the outer surfaces of two sides of the connecting block (22).
4. The device for detecting the performance of the main control circuit board in the display according to claim 1, wherein the moving structure (6) comprises a longitudinal sliding rail (61) fixedly connected to the outer surface of the lower end of the movable plate (21), the outer surface of the longitudinal sliding rail (61) is slidably connected with a longitudinal sliding block (62), the outer surface of the longitudinal sliding block (62) is fixedly connected with a transverse sliding rail (63), the outer surface of the transverse sliding rail (63) is slidably connected with a transverse sliding block (64), and the test pen (3) is fixedly connected to the outer surface of the transverse sliding block (64).
5. The device for detecting the performance of the main control circuit board in the display according to claim 4, wherein the swivel (411) and the gear ring (414) are in rotary connection with the detection table (1), the driving gear (415) is in rotary connection with the detection table (1), the servo motor (416) and the detection table (1) are in movable connection through screws, the driving gear (415) is driven by the servo motor (416) to rotate, two ends of the elastic rope (423) are fixedly connected with the swivel (411) and the sliding blade (4243) respectively, the PLC controls the display table (7) to control the starting operation and the closing of the servo motor (416), the sliding blade (4243) is driven to move back and forth on the coil (4241) through clockwise rotation of the swivel (411), and the sliding blade (4243) is kept in the middle of the metal rod (4242) under the state without external force through the reset spring (426).
6. The device for detecting the performance of the main control circuit board in the display according to claim 2, wherein the clamping assembly (55) comprises positioning blocks (551) which are respectively and fixedly connected to the upper ends of the connecting columns (52) and one end of the fixing support (54), the lower ends of the positioning blocks (551) are rotationally connected with rotating plates (552), the rotating plates (552) and the positioning blocks (551) are in hinged connection through hinge pieces (554), the lower ends of the rotating plates (552) are rotationally connected with limiting wheels (553), and the outer surfaces of the rotating plates (552) are fixedly connected with arc-shaped rods (555).
7. The device for detecting the performance of the main control circuit board in the display according to claim 6, wherein the number of the concave holes (51) is a plurality of groups and is distributed in an array, the arc-shaped rods (555) are arranged in an arc-shaped structure, one ends of the arc-shaped rods (555) penetrate through the positioning blocks (551), the outer surfaces of the arc-shaped rods (555) are movably sleeved with pushing springs (556), the axes of the pushing springs (556) are coincident with the axes of the arc-shaped rods (555), two ends of the pushing springs (556) are fixedly connected with the rotating plates (552) and the positioning blocks (551) respectively, the connecting columns (52) are matched with the concave holes (51), the connecting balls (57) are matched with the spherical grooves (56), the connecting balls (57) are made of elastic materials, the lower ends of the positioning blocks (551) are attached to the outer surfaces of the upper ends of the detection tables (1), and the PLC control display tables (7) are used for controlling the expansion and contraction of the expansion rods (53), and the fixing supports (54) are L-shaped structures.
8. A device for detecting the performance of a main control circuit board in a display according to claim 3, wherein the aperture of the guide hole (27) is matched with the diameter of the positioning rod (24), the threaded hole (26) is in threaded connection with the threaded rod (23), the threaded rod (23) is driven to rotate by a motor, the connecting block (22) is driven to slide up and down along the length direction of the positioning rod (24) by clockwise rotation and anticlockwise rotation of the threaded rod (23) so as to realize the lifting of the movable plate (21), and the PLC control display table (7) is used for controlling the operation and closing of the motor driving the threaded rod (23) to rotate.
9. The device for detecting the performance of the main control circuit board in the display according to claim 4, wherein the longitudinal sliding rails (61) are two groups of linear sliding rails which are transversely arranged and are parallel to each other, the number of the longitudinal sliding rails (61) corresponding to the number of the longitudinal sliding blocks (62) is two, each group of longitudinal sliding blocks (62) on two different longitudinal sliding rails (61) is fixedly connected with one group of transverse sliding rails (63), one group of transverse sliding blocks (64) corresponding to the number of the test pens (3) is two, the longitudinal sliding rails (61) are perpendicular to the transverse sliding rails (63), and the PLC control display table (7) is used for respectively controlling the longitudinal sliding blocks (62) and the transverse sliding blocks (64) on the outer surfaces of the longitudinal sliding rails (61) and the transverse sliding rails (63) to move back and forth.
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