CN111495793A - Automatic detection device and method for surface flatness of circuit board - Google Patents
Automatic detection device and method for surface flatness of circuit board Download PDFInfo
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- CN111495793A CN111495793A CN202010358169.XA CN202010358169A CN111495793A CN 111495793 A CN111495793 A CN 111495793A CN 202010358169 A CN202010358169 A CN 202010358169A CN 111495793 A CN111495793 A CN 111495793A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
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Abstract
The invention discloses an automatic detection device and a method for the surface flatness of a circuit board, wherein the device comprises a detection platform and a detection mechanism, the detection mechanism is arranged on the detection platform, the detection platform is provided with a detection seat, the detection seat is provided with a support rod, a first clamping block and a slide rod, the first clamping block is fixedly connected with the detection seat, the slide rod is connected with the detection seat in a sliding manner, the detection seat is provided with a first electric push rod, the first electric push rod drives the slide rod to slide on the detection seat, and the slide rod is provided with a second clamping block; the method adopts a, debugging and running; b. adjusting the detection seat; c. clamping the circuit board; d. detecting a circuit board; e. and (4) screening the circuit board for 5 steps. The circuit board positioning and fixing device can position and fix a circuit board to be detected, improves the detection precision, and can adjust the detection seat according to the circuit boards with different sizes, thereby improving the universality of the detection seat; the method optimizes the detection process, simplifies the steps, improves the detection efficiency, and improves the detection precision and the detection effect.
Description
Technical Field
The invention belongs to the technical field of circuit board detection, and particularly relates to an automatic detection device and method for surface flatness of a circuit board.
Background
With the continuous development of the circuit board industry, electronic components mounted by high-end handheld electronic consumer products are smaller and smaller, and the requirement on the flatness of the surface of a circuit board in the mounting process is higher and higher. In the production process of the printed circuit board, the flatness of the board surface can be influenced by factors such as obvious asymmetry of circuit patterns on the substrate and the two surfaces of the circuit board. Therefore, while the quality control of the production process is well done, the detection of the flatness of the circuit board before shipment is an essential item in the reliability test. The circuit board that the circuit board exists is inconvenient in the circuit board location that the roughness testing process exists, is difficult to the location, is unfavorable for a large amount of circuit board to detect in succession, also can influence the detection precision to the detection of single circuit board simultaneously.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and provides an automatic detection device and method for the surface flatness of a circuit board, which can position and fix the circuit board to be detected, improve the detection precision, have simple and convenient positioning, are beneficial to assembly line detection, and can adjust a detection seat according to circuit boards with different sizes, thereby improving the universality of the detection seat; the method optimizes the detection process, simplifies the steps, improves the detection efficiency, and improves the detection precision and the detection effect.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a circuit board surface flatness automatic checkout device which characterized in that: including testing platform and detection mechanism, detection mechanism locates on testing platform, testing platform is equipped with and detects the seat, it is equipped with the bracing piece to detect the seat, first fixture block and slide bar, the top of bracing piece is equipped with the ball, first fixture block with detect seat fixed connection, the slide bar with detect seat sliding connection, it is equipped with first electric putter to detect the seat, first electric putter drive slide bar slides on detecting the seat, the slide bar is equipped with the second fixture block, first fixture block is equipped with first constant head tank, the second fixture block is equipped with the second constant head tank, first constant head tank and second constant head tank height are leveled mutually. The detection mechanism can detect the flatness of the circuit board, the first clamping block and the second clamping block on the detection seat are used for limiting the circuit board, the positioning of the circuit board on the detection seat can be guaranteed, meanwhile, the distance between the first clamping block and the second clamping block is not smaller than the length of the circuit board, the fact that the first clamping block and the second clamping block cannot apply clamping force to the circuit board is guaranteed, and the fact that the detection result of the circuit board is correct is guaranteed. The first push rod motor is used for driving the slide bar to move, so that the distance between the first clamping block and the second clamping block is adjusted, and the circuit board detection device is suitable for circuit board detection of various sizes. The supporting rod plays a supporting role for the circuit board, and the ball can reduce friction. The first positioning groove and the second positioning groove have a positioning effect, and the circuit board is conveniently positioned on the detection seat.
Further, testing platform is equipped with lead screw and servo motor, and the lead screw is equipped with the nut, nut and detection seat fixed connection, and servo motor drive lead screw rotates, and testing platform is equipped with the guide arm, and the guide arm is equipped with the sliding sleeve, sliding sleeve and guide arm sliding connection, sliding sleeve and detection seat fixed connection. Through the cooperation of lead screw, nut and servo motor, realize detecting the translation of seat on testing platform, the automatic assembly line of being convenient for detects, has improved detection efficiency, and guide arm and sliding sleeve play the guide effect, improve the removal precision that detects the seat.
Further, it is equipped with the backup pad to detect the seat, and the backup pad is equipped with second electric putter, and second electric putter is equipped with the push pedal, and second electric putter drive push rod moves in the backup pad, and the push pedal is equipped with changes the board, changes the board and rotates with the push pedal to be connected, changes the board and is equipped with the clamp splice, and the clamp splice is equipped with the draw-in groove, and the push pedal is equipped with the rotation motor, rotates the motor and is equipped with the driving gear, changes the board and is equipped with driven gear, and driving gear and driven gear mesh mutually. The clamp splice can take out the circuit board from the supporting seat after the circuit board detects and finishes, and the circuit board of conveniently taking is not only subsequently used manipulator centre gripping circuit board partial shipment or artifical screening shipment, has all greatly practiced thrift the time of taking out the circuit board from detecting the seat, improves the ability of detecting the circuit board in succession.
Further, it is equipped with the fixed block to detect the seat, and the fixed block is equipped with the fixed slot, and the fixed slot is equipped with the support frame, and the support frame is equipped with the supporting part, and the support frame is equipped with the inserted block, and the clamp splice is equipped with the slot, slot and inserted block phase-match. The support frame can play the supporting role to the circuit board, when the clamp splice drives the circuit board and rotates, can support the bottom of circuit board, prevents that the circuit board atress from warping damage even. The supporting frame can be connected with the clamping block to play a supporting role through the cooperation of the inserting block and the inserting groove, and the supporting frame is clamped by the fixing block in the returning process of the clamping block, so that the clamping block and the supporting frame are conveniently separated, and the use is more convenient. The second electric push rod pushes the push plate in the detection seat, so that the clamping block moves inwards, the insertion block of the support frame is inserted into the insertion slot, and when the rotating plate rotates, the clamping block can drive the support frame to rotate together.
Further, a first supporting block is arranged on the first clamping block, the first clamping block is rotatably connected with the first supporting block, a first spring is arranged between the first supporting block and the first clamping block, a second supporting block is arranged on the second clamping block, the second clamping block is rotatably connected with the second supporting block, a second spring is arranged between the second supporting block and the second clamping block, a sliding block is arranged on the detection seat, a winding motor is arranged in the sliding block, a winding wheel is arranged on the winding motor, the winding wheel is provided with a first connecting wire and a second connecting wire, the first connecting wire is connected with the first clamping block, the second connecting wire is connected with the second clamping block, a connecting rod is arranged between the first supporting block and the sliding block, and a telescopic rod is arranged between the second supporting block and the sliding block. The coiling motor drives the coiling wheel to rotate, so that the first clamping block and the second clamping block are driven to rotate, and the clamping blocks are convenient to clamp the circuit board.
Further, the slider with detect seat sliding connection, second supporting shoe and slide bar sliding connection, the slider is equipped with the regulating plate, and the regulating plate is equipped with adjusting screw, and the both sides of regulating plate all are equipped with adjusting nut, two adjusting nut chucking adjusting screw. The distance between the first clamping block and the second clamping block is adjusted to adapt to circuit boards with different sizes, the first clamping block and the second clamping block are guaranteed to be located around four corners of the circuit board, and positioning accuracy and positioning effect are improved.
Furthermore, the detection seat is provided with an identification point, and the detection seat is provided with the identification point, so that the servo motor can conveniently and accurately convey the detection seat to the lower part of the detection mechanism.
A detection method of an automatic detection device for the surface flatness of a circuit board is characterized by comprising the following steps:
a. debugging and running: the servo motor is started, whether the detection seat can normally run or not is observed, the first electric push rod is started, the running condition of the slide rod is checked, the second electric push rod is started, the motor is rotated, the running condition of the clamping block is checked, the fault is found and needs to be maintained and processed in time, and the condition that the circuit board is damaged in the circuit board detection process is avoided. The running condition of the machine is known, and the machine is prevented from running again due to faults.
b. Adjusting a detection seat: the distance between the first clamping block and the second clamping block is adjusted so as to adapt to the detection of circuit boards of different models and sizes. The detection seat is adjusted, so that the first fixture block and the second fixture block can be conveniently used for positioning the circuit board, the distance between the first fixture block and the second fixture block is greatly increased by the circuit board, the distance between the first fixture block and the second fixture block is slightly decreased by the circuit board, the distance between the first fixture block and the second fixture block can be kept to be matched with the size of the circuit board, the positioning precision and the positioning effect of the circuit board detection are improved, the detection accuracy is improved, and the error is reduced.
c. Clamping the circuit board: and arranging the circuit board to be detected on the detection seat, positioning the circuit board through the first clamping block and the second clamping block, starting the servo motor, and conveying the detection seat to the lower part of the detection mechanism. After the circuit board is clamped, the detection mechanism is convenient to detect, the detection effect is improved, and the problems that the detection quality is not high and the deviation is large due to the fact that the position of the circuit board is not correct are avoided.
d. Detecting the circuit board: the detection mechanism is started to detect the circuit board, after the detection is finished, the winding motor is started, the first clamping block and the second clamping block are not in contact with the circuit board to be detected, then the detection mechanism is started again to detect the circuit board, the two detection results are compared through calculation and analysis, the deviation of the two detection data is smaller than a set value, the detection is finished, the deviation of the two detection results is large, the re-detection is carried out, and if the deviation of the two detection data is smaller than the set value, the result of the two subsequent detection is accurate. The circuit board detects and adopts two segmentations, effectively avoids once appearing the accident, and simultaneously, the second time detects and opens first fixture block and second fixture block, avoids the influence of first fixture block and second fixture block. The deviation of data detected twice is small, which indicates that the data detected twice is accurate, if the circuit board is uneven, the circuit board is clamped by the clamp blocks responsible for clamping the circuit board, and the flatness is preferentially responsible for clamping the clamp blocks which are flat. The deviation of results of the two times is large, and the factor of eliminating the fixture block is detected for the third time, so that the detection accuracy is improved.
e. Screening the circuit board: according to the detection result of the circuit board, if the flatness of the circuit board does not reach the standard, the clamping blocks on one side of the detection seat are clamped and recovered, and if the flatness of the circuit board reaches the standard, the circuit board is clamped by the clamping blocks on the other side to wait for transportation and packaging. The circuit board is screened to facilitate subsequent processing.
Further, the detailed steps of step b are: adjusting the distance between the first clamping block and the second clamping block according to the size of the circuit board to be detected;
increasing the distance between the first fixture block and the second fixture block: the second is disconnected earlier and is connected the connection between rope and the second supporting shoe, later starts first push rod motor, and the second fixture block promotes to the outside that detects the seat under the effect of slide bar, closes first push rod motor after pushing away to the specified distance, later through loosening adjusting nut, adjusts the interval between two first fixture blocks, later screws up adjusting nut again, and the fixed interval adjusts the length that the rope was connected to the second, later connects second connection rope and second supporting shoe. The second connection rope and the second supporting block are disconnected when the distance is increased, the distance is adjusted conveniently, and then the first clamping block and the second clamping block are started and turned over conveniently when the winding motor is connected.
Reducing the distance between the first fixture block and the second fixture block: the first push rod motor is started, the second clamping blocks are pushed towards the inner side of the detection seat under the action of the sliding rod, the first push rod motor is closed after the second clamping blocks are pushed to a specified distance, then the distance between the two first clamping blocks is adjusted by loosening the adjusting nuts, then the adjusting nuts are screwed, the distance is fixed, and then the length of the second connecting rope is adjusted, so that the second connecting rope between the second supporting block and the sliding block is stretched.
Further, the detailed steps of step c are: start the spiral motor for first fixture block and second fixture block rotate, are outside upset form, are convenient for place the circuit board, later arrange the circuit board in on the bracing piece, close the spiral motor, first fixture block kick-backs under the effect of first spring, and the second fixture block kick-backs under the effect of second spring, and the position of correction circuit board on detecting the seat later starts servo motor, will detect the seat and transport to detection mechanism's below. The winding motor is started, so that the circuit board is convenient to place, and the circuit board is prevented from being clamped by the clamping block and is not easy to place.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the detection device comprises a detection platform and a detection mechanism, wherein the detection mechanism is arranged on the detection platform, the detection platform is provided with a detection seat, the detection seat is provided with a support rod, a first clamping block and a slide rod, the top of the support rod is provided with a ball, the first clamping block is fixedly connected with the detection seat, the slide rod is slidably connected with the detection seat, the detection seat is provided with a first electric push rod, the first electric push rod is fixedly connected with the slide rod, the slide rod is provided with a second clamping block, the first clamping block is provided with a first positioning groove, the second clamping block is provided with a second positioning groove, and the heights of the first positioning groove and the second positioning. The detection mechanism can detect the flatness of the circuit board, the first clamping block and the second clamping block on the detection seat are recycled to limit the circuit board, the positioning of the circuit board on the detection seat can be guaranteed, meanwhile, the distance between the first clamping block and the second clamping block is not smaller than the length of the circuit board, the fact that the first clamping block and the second clamping block cannot apply clamping force to the circuit board is guaranteed, the circuit board is prevented from being stressed and deformed, and the circuit board is guaranteed to be correct in detection result. The first push rod motor is used for driving the slide bar to move, so that the distance between the first clamping block and the second clamping block is adjusted, and the circuit board detection device is suitable for circuit board detection of various sizes. The supporting rod plays a supporting role for the circuit board, and the ball can reduce friction. The first positioning groove and the second positioning groove have a positioning effect, and the circuit board is conveniently positioned on the detection seat. The circuit board positioning and fixing device can position and fix a circuit board to be detected, improves detection precision, is simple and convenient to position, facilitates assembly line detection, and can adjust the detection seat according to circuit boards with different sizes, so that the universality of the detection seat is improved.
The invention adopts a, debugging and running; b. adjusting the detection seat; c. clamping the circuit board; d. detecting a circuit board; e. the circuit board screening, totally 5 steps, optimize and add the survey method, it is convenient to detect convenient detection seat and adjust, is suitable for the circuit board detection of multiple size specification, makes things convenient for the location of circuit board on detecting the seat, can improve the detection efficiency of circuit board roughness, improves detection effect, can automated inspection simultaneously, does benefit to the assembly line and detects, detects accurately, and the error is little.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of an automatic circuit board surface flatness detecting apparatus according to the present invention;
FIG. 2 is a schematic view of the circuit board of the present invention disposed on the inspection socket;
FIG. 3 is a schematic view of the detecting base according to the present invention;
FIG. 4 is a schematic view of the bottom of the inspection socket of the present invention;
FIG. 5 is a schematic view of the structure of the clamping block driving the circuit board to rotate according to the present invention;
FIG. 6 is a schematic view of the connection between the supporting frame and the clamping block of the present invention;
fig. 7 is a schematic structural view illustrating the connection of the first engaging block, the second engaging block and the winding wheel according to the present invention.
In the figure, 1-detection platform; 2-a detection mechanism; 3-detecting the seat; 4-a support bar; 5-a first clamping block; 6-a slide bar; 7-a ball bearing; 8-a first electric push rod; 9-a second fixture block; 10-a first positioning groove; 11-a second positioning groove; 12-a screw rod; 13-a servo motor; 14-a nut; 15-a guide rod; 16-a sliding sleeve; 17-a support plate; 18-a second electric push rod; 19-push plate; 20-rotating the plate; 21-a clamping block; 22-a card slot; 23-a rotating electric machine; 24-a drive gear; 25-a driven gear; 26-fixing blocks; 28-a support frame; 29-a support; 30-an insert block; 31-a first support block; 32-a first spring; 33-a second support block; 34-a second spring; 35-a slide block; 36-a wire-winding motor; 37-a take-up reel; 38-a first connection line; 39-second connecting line; 40-a connecting rod; 41-a telescopic rod; 42-an adjusting plate; 43-adjusting screw; 44-an adjusting nut; 45-circuit board.
Detailed Description
As shown in fig. 1 to 7, the device for automatically detecting surface flatness of a circuit board according to the present invention includes a detection platform 1 and a detection mechanism 2, the detection mechanism 2 is disposed on the detection platform 1, the detection platform 1 is provided with a detection seat, the detection seat 3 is provided with a support rod 4, a first fixture block 5 and a slide rod 6, a ball 7 is disposed at the top of the support rod 4, the first fixture block 5 is fixedly connected with the detection seat 3, the slide rod 6 is slidably connected with the detection seat 3, the detection seat 3 is provided with a first electric push rod 8, the first electric push rod 8 is fixedly connected with the slide rod 6, the slide rod 6 is provided with a second fixture block 9, the first fixture block 5 is provided with a first positioning groove 10, the second fixture block 9 is provided with a second positioning groove 11, and the heights of the first positioning groove 10 and the second positioning groove. Detection mechanism 2 can detect the roughness of circuit board, recycles the spacing circuit board 45 of first fixture block 5 and second fixture block 9 on detecting seat 3, can guarantee the location of circuit board 45 on detecting seat 3, and the interval of first fixture block 5 and second fixture block 9 is not less than the length of circuit board 45 simultaneously, guarantees that first fixture block 5 and second fixture block 9 can not exert the clamp force for circuit board 45, guarantees that the testing result of circuit board 45 is correct. The first push rod motor is used for driving the slide rod 6 to move, so that the distance between the first fixture block 5 and the second fixture block 9 is adjusted, and the detection of circuit boards 45 with various sizes is facilitated. The support rod 4 supports the circuit board 45, and the balls 7 can reduce friction. The first positioning groove 10 and the second positioning groove 11 play a positioning role, so that the circuit board 45 can be conveniently positioned on the detection base 3.
The detection platform 1 is provided with a screw rod 12 and a servo motor 13, the screw rod 12 is provided with a nut 14, the nut 14 is fixedly connected with the detection seat 3, the servo motor 13 drives the screw rod 12 to rotate, the detection platform 1 is provided with a guide rod 15, the guide rod 15 is provided with a sliding sleeve 16, the sliding sleeve 16 is in sliding connection with the guide rod 15, and the sliding sleeve 16 is fixedly connected with the detection seat 3. Through the cooperation of lead screw 12, nut 14 and servo motor 13, realize detecting the translation of seat 3 on testing platform 1, the automatic assembly line of being convenient for detects, has improved detection efficiency, and guide arm 15 and sliding sleeve 16 play the guide effect, improve and detect the removal precision of seat 3.
Detect seat 3 and be equipped with backup pad 17, backup pad 17 is equipped with second electric putter 18, second electric putter 18 is equipped with push pedal 19, second electric putter 18 drive push rod moves in backup pad 17, push pedal 19 is equipped with changes board 20, it is connected with push pedal 19 to change board 20 and rotate, it is equipped with clamp splice 21 to change board 20, clamp splice 21 is equipped with draw-in groove 22, push pedal 19 is equipped with rotation motor 23, it is equipped with driving gear 24 to rotate motor 23, it is equipped with driven gear 25 to change board 20, driving gear 24 and driven gear 25 mesh mutually, it rotates board 20 to rotate motor 23 drive. The clamp splice 21 can take out circuit board 45 from the supporting seat after circuit board 45 detects and finishes, and the circuit board 45 of conveniently taking is leaned on simultaneously, no matter is follow-up manipulator centre gripping circuit board 45 partial shipment or artifical screening shipment that uses, has all greatly practiced thrift the time of taking out circuit board 45 from detecting seat 3, improves the ability of detecting circuit board 45 in succession.
The detection seat 3 is provided with a fixing block 26, the fixing block 26 is provided with a fixing groove, the fixing groove is provided with a support frame 28, the support frame 28 is provided with a supporting part 29, the support frame 28 is provided with an insertion block 30, the clamping block 21 is provided with an insertion groove, and the insertion groove is matched with the insertion block 30. The support frame 28 can play the supporting role to circuit board 45, when clamp splice 21 drives circuit board 45 and rotates, can support the bottom of circuit board 45, prevents that circuit board 45 atress from warping even damaged. The supporting frame 28 can be connected with the clamping block 21 to play a supporting role due to the matching of the inserting block 30 and the inserting groove, and the supporting frame 28 is clamped by the fixing block 26 in the returning process of the clamping block 21, so that the clamping block 21 and the supporting frame 28 are conveniently separated, and the use is more convenient.
The first fixture block 5 is provided with a first supporting block 31, the first fixture block 5 is rotatably connected with the first supporting block 31, a first spring 32 is arranged between the first supporting block 31 and the first fixture block 5, the second fixture block 9 is provided with a second supporting block 33, the second fixture block 9 is rotatably connected with the second supporting block 33, a second spring 34 is arranged between the second supporting block 33 and the second fixture block 9, the detection seat 3 is provided with a sliding block 35, a winding motor 36 is arranged in the sliding block 35, the winding motor 36 is provided with a winding wheel 37, the winding wheel 37 is provided with a first connecting line 38 and a second connecting line 39, the first connecting line 38 is connected with the first fixture block 5, the second connecting line 39 is connected with the second fixture block 9, a connecting rod 40 is arranged between the first supporting block 31 and the sliding block 35, and an expansion rod 41 is arranged between the second supporting block 33 and the sliding block 35. The winding motor 36 drives the winding wheel 37 to rotate, so as to drive the first fixture block 5 and the second fixture block 9 to rotate, and the clamping block 21 is convenient to clamp the circuit board 45.
The sliding block 35 is connected with the detection seat 3 in a sliding mode, the second supporting block 33 is connected with the sliding rod 6 in a sliding mode, the sliding block 35 is provided with an adjusting plate 42, the adjusting plate 42 is provided with an adjusting screw rod 43, adjusting nuts 44 are arranged on two sides of the adjusting plate 42, and the two adjusting nuts 44 clamp the adjusting screw rod 43. The distance between the first fixture block 5 and the second fixture block 9 is adjusted to adapt to circuit boards 45 with different sizes, so that the first fixture block 5 and the second fixture block 9 are ensured to be positioned around four corners of the circuit board 45, and the positioning precision and the positioning effect are improved.
Detect seat 3 and be equipped with the identification point, detect seat 3 and set up the identification point, can make things convenient for servo motor 13 will detect the accurate below of carrying to detection mechanism 2 of seat 3.
A detection method of an automatic detection device for the surface flatness of a circuit board 45 comprises the following steps:
a. debugging and running: the servo motor 13 is started, whether the detection seat 3 can normally run or not is observed, the first electric push rod 8 is started, the running condition of the slide rod 6 is checked, the second electric push rod 18 and the rotating motor 23 are started, the running condition of the clamping block 21 is checked, the fault is found, maintenance and treatment are needed in time, and the condition that the circuit board 45 is damaged in the detection process of the circuit board 45 is avoided. The running condition of the machine is known, and the machine is prevented from running again due to faults.
b. Adjusting the detection seat 3: the distance between the first fixture block 5 and the second fixture block 9 is adjusted so as to adapt to the detection of circuit boards 45 with different models and sizes. Detect the adjustment of seat 3, can be convenient for first fixture block 5 and second fixture block 9 to the location of circuit board 45, the circuit board 45 is then adjusted big first fixture block 5 and the distance of second fixture block 9, and circuit board 45 is then adjusted little distance for a short time, can keep the distance of first fixture block 5 and second fixture block 9 and the big or small phase-match of circuit board 45, improves the positioning accuracy and the positioning effect that circuit board 45 detected, improves and detects the rate of accuracy, reduces the error.
c. Clamping the circuit board: the circuit board 45 to be detected is placed on the detection seat 3, the circuit board 45 is positioned through the first clamping block 5 and the second clamping block 9, then the servo motor 13 is started, and the detection seat 3 is conveyed to the lower portion of the detection mechanism 2. After the circuit board 45 is clamped, the detection mechanism 2 is convenient to detect, the detection effect is improved, and the problems that the detection quality is not high and the deviation is large due to the fact that the position of the circuit board 45 is not correct are avoided.
d. Detecting the circuit board: the detection mechanism 2 is started, the circuit board 45 is detected, after the detection is finished, the winding motor 36 is started, the first fixture block 5 and the second fixture block 9 are not in contact with the circuit board 45 to be detected, then the detection mechanism 2 is started again, the circuit board 45 is detected, two detection results are compared through calculation and analysis, the deviation of two detection data is smaller than a set value, the detection is finished, the deviation of two detection results is large, the re-detection is carried out, and if the deviation of the two detection data is smaller than the set value, the result of the two detection is accurate. The circuit board 45 detects and adopts two segmentations, effectively avoids once appearing the accident, and simultaneously, the second time detects and opens first fixture block 5 and second fixture block 9, avoids the influence of first fixture block 5 and second fixture block 9. The deviation of the data detected twice is small, which indicates that the data detected twice is accurate, if the circuit board 45 is uneven, the circuit board is clamped by the clamp block 21 which is responsible for clamping the uneven circuit board, and the flat circuit board is preferably used for clamping the flat clamp block 21. The deviation of results of the two times is large, and the factor of eliminating the fixture block is detected for the third time, so that the detection accuracy is improved.
e. Screening the circuit board: according to the detection result of the circuit board 45, if the flatness of the circuit board 45 does not reach the standard, the clamping blocks 21 on one side of the detection seat 3 are clamped and recovered, and if the flatness of the circuit board 45 reaches the standard, the circuit board is clamped by the clamping blocks 21 on the other side to wait for transportation and packaging. The circuit board 45 is screened to facilitate subsequent processing.
The detailed steps of the step b are as follows: adjusting the distance between the first fixture block 5 and the second fixture block 9 according to the size of the circuit board 45 to be detected;
increasing the distance between the first latch 5 and the second latch 9: firstly, the second connecting rope is disconnected from the second supporting block 33, then the first push rod motor is started, the second clamping block 9 is pushed to the outer side of the detection seat 3 under the action of the sliding rod 6, the first push rod motor is closed after the second clamping block is pushed to a specified distance, then the distance between the two first clamping blocks 5 is adjusted by loosening the adjusting nut 44, then the adjusting nut 44 is screwed down, the distance is fixed, the length of the second connecting rope is adjusted, and then the second connecting rope and the second supporting block 33 are connected. When the distance is increased, the second connecting rope is disconnected with the second supporting block 33, so that the distance is adjusted conveniently, and then the winding motor 36 is connected to start and turn over the first fixture block 5 and the second fixture block 9 conveniently.
Narrowing the distance between the first latch 5 and the second latch 9: the first push rod motor is started, the second fixture block 9 is pushed towards the inner side of the detection seat 3 under the action of the sliding rod 6, the first push rod motor is closed after the second fixture block is pushed to a specified distance, then the distance between the two first fixture blocks 5 is adjusted by loosening the adjusting nut 44, then the adjusting nut 44 is screwed, the distance is fixed, and then the length of the second connecting rope is adjusted, so that the second connecting rope between the second support block 33 and the sliding block 35 is stretched.
The detailed steps of the step c are as follows: start spiral motor 36 for first fixture block 5 and second fixture block 9 rotate, are outside upset form, are convenient for place circuit board 45, later place circuit board 45 on bracing piece 4 in, close spiral motor 36, first fixture block 5 kick-backs under the effect of first spring 32, second fixture block 9 kick-backs under the effect of second spring 34, rectify circuit board 45 position on detecting seat 3, later start servo motor 13, will detect seat 3 and transport to detection mechanism 2's below. The winding motor 36 is started, so that the circuit board 45 is convenient to place, and the circuit board 45 is prevented from being clamped by the clamping block and is not easy to place.
The detection device comprises a detection platform 1 and a detection mechanism 2, wherein the detection mechanism 2 is arranged on the detection platform 1, the detection platform 1 is provided with a detection seat 3, the detection seat 3 is provided with a support rod 4, a first clamping block 5 and a slide rod 6, the top of the support rod 4 is provided with a ball 7, the first clamping block 5 is fixedly connected with the detection seat 3, the slide rod 6 is slidably connected with the detection seat 3, the detection seat 3 is provided with a first electric push rod 8, the first electric push rod 8 is fixedly connected with the slide rod 6, the slide rod 6 is provided with a second clamping block 9, the first clamping block 5 is provided with a first positioning groove 10, the second clamping block 9 is provided with a second positioning groove 11, and the heights of the first positioning groove 10 and the second positioning groove. Detection mechanism 2 can detect the roughness of circuit board 45, recycles the spacing circuit board 45 of first fixture block 5 and second fixture block 9 on detecting seat 3, can guarantee the location of circuit board 45 on detecting seat 3, and the interval of first fixture block 5 and second fixture block 9 is not less than the length of circuit board 45 simultaneously, guarantees that first fixture block 5 and second fixture block 9 can not apply the clamp force for circuit board 45, avoids circuit board 45 atress to warp, guarantees that the testing result of circuit board 45 is correct. The first push rod motor is used for driving the slide rod 6 to move, so that the distance between the first fixture block 5 and the second fixture block 9 is adjusted, and the detection of circuit boards 45 with various sizes is facilitated. The support rod 4 supports the circuit board 45, and the balls 7 can reduce friction. The first positioning groove 10 and the second positioning groove 11 play a positioning role, so that the circuit board 45 can be conveniently positioned on the detection base 3. The circuit board detection device can position and fix the circuit board 45 to be detected, improves detection precision, is simple and convenient to position, is beneficial to assembly line detection, and can adjust the detection seat 3 according to the circuit boards 45 with different sizes, thereby improving the universality of the detection seat 3.
The invention adopts a, debugging and running; b. adjusting the detection seat 3; c. the circuit board 45 is clamped; d. detecting the circuit board 45; e. the circuit board 45 sieves, totally 5 steps, optimize and add the survey method, detect and conveniently detect 3 regulation of seat, be suitable for the circuit board 45 detection of multiple size specification, make things convenient for the location of circuit board 45 on detecting seat 3, can improve the detection efficiency of 45 roughness of circuit board, improve detection effect, can automated inspection simultaneously, do benefit to the assembly line and detect, detect accurately, the error is little.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.
Claims (10)
1. The utility model provides a circuit board surface flatness automatic checkout device which characterized in that: including testing platform and detection mechanism, detection mechanism locates testing platform is last, testing platform is equipped with detects the seat, it is equipped with bracing piece, first fixture block and slide bar to detect the seat, the top of bracing piece is equipped with the ball, first fixture block with detect seat fixed connection, the slide bar with detect seat sliding connection, it is equipped with first electric putter to detect the seat, first electric putter drive the slide bar is in it slides on the seat to detect, the slide bar is equipped with the second fixture block, first fixture block is equipped with first constant head tank, the second fixture block is equipped with the second constant head tank, first constant head tank with the second constant head tank height is leveled mutually.
2. The automatic detecting device for the surface flatness of the circuit board according to claim 1, characterized in that: the detection platform is provided with a screw rod and a servo motor, the screw rod is provided with a nut, the nut is fixedly connected with the detection seat, the servo motor drives the screw rod to rotate, the detection platform is provided with a guide rod, the guide rod is provided with a sliding sleeve, the sliding sleeve is connected with the guide rod in a sliding manner, and the sliding sleeve is fixedly connected with the detection seat.
3. The automatic detecting device for the surface flatness of the circuit board according to claim 1, characterized in that: the detecting seat is provided with a supporting plate, the supporting plate is provided with a second electric push rod, the second electric push rod is provided with a push plate, the second electric push rod drives the push rod to move on the supporting plate, the push plate is provided with a rotating plate, the rotating plate is rotatably connected with the push plate, the rotating plate is provided with a clamping block, the clamping block is provided with a clamping groove, the push plate is provided with a rotating motor, the rotating motor is provided with a driving gear, the rotating plate is provided with a driven gear, the driving gear is meshed with the driven gear, and the rotating motor drives the rotating plate to rotate.
4. The automatic detecting device for the surface flatness of the circuit board according to claim 3, characterized in that: the detecting seat is provided with a fixed block, the fixed block is provided with a fixed groove, the fixed groove is provided with a supporting frame, the supporting frame is provided with a supporting part, the supporting frame is provided with an inserting block, the clamping block is provided with a slot, and the slot is matched with the inserting block.
5. The automatic detecting device for the surface flatness of the circuit board according to claim 1, characterized in that: the detection seat is provided with a sliding block, a winding motor is arranged in the sliding block, the winding motor is provided with a winding wheel, the winding wheel is provided with a first connecting wire and a second connecting wire, the first connecting wire is connected with the first clamping block, the second connecting wire is connected with the second clamping block, a connecting rod is arranged between the first supporting block and the sliding block, and a telescopic rod is arranged between the second supporting block and the sliding block.
6. The automatic detecting device for the surface flatness of the circuit board according to claim 5, characterized in that: the slider with detect seat sliding connection, the second supporting shoe with slide bar sliding connection, the slider is equipped with the regulating plate, the regulating plate is equipped with adjusting screw, the both sides of regulating plate all are equipped with adjusting nut, two adjusting nut chucking adjusting screw.
7. The automatic detecting device for the surface flatness of the circuit board according to claim 1, characterized in that: . The detection seat is provided with an identification point.
8. The detection method of the automatic detection device for the surface flatness of the circuit board based on claim 1 is characterized by comprising the following steps:
a. debugging and running: starting a servo motor, observing whether a detection seat can normally run or not, starting a first electric push rod, checking the running condition of a slide rod, starting a second electric push rod and a rotating motor, checking the running condition of a clamping block, finding a fault and needing to be maintained and processed in time, and avoiding the condition that a circuit board is damaged in the detection process of the circuit board;
b. adjusting a detection seat: the distance between the first fixture block and the second fixture block is adjusted so as to be suitable for the detection of circuit boards of different models and sizes;
c. clamping the circuit board: arranging a circuit board to be detected on a detection seat, positioning the circuit board through a first clamping block and a second clamping block, starting a servo motor, and conveying the detection seat to the lower part of a detection mechanism
d. Detecting the circuit board: starting a detection mechanism, detecting the circuit board, starting a winding motor after the detection is finished, enabling a first clamping block and a second clamping block not to contact the circuit board to be detected, then starting the detection mechanism again, detecting the circuit board, comparing two detection results through calculation and analysis, finishing the detection if the deviation of two detection data is less than a set value, detecting again if the deviation of two detection results is greater, and determining the result of the two detection results is accurate if the deviation of the two detection data is less than the set value;
e. screening the circuit board: according to the detection result of the circuit board, if the flatness of the circuit board does not reach the standard, the clamping blocks on one side of the detection seat are clamped and recovered, and if the flatness of the circuit board reaches the standard, the circuit board is clamped by the clamping blocks on the other side to wait for transportation and packaging.
9. The inspection method of an automatic inspection apparatus for the flatness of the surface of a circuit board according to claim 8, wherein: the detailed steps of the step b are as follows: adjusting the distance between the first clamping block and the second clamping block according to the size of the circuit board to be detected;
increasing the distance between the first fixture block and the second fixture block: firstly, disconnecting the second connecting rope and the second supporting block, then starting the first push rod motor, pushing the second clamping block to the outer side of the detection seat under the action of the sliding rod, closing the first push rod motor after pushing to a specified distance, then adjusting the distance between the two first clamping blocks by loosening the adjusting nut, then screwing the adjusting nut, fixing the distance, adjusting the length of the second connecting rope, and then connecting the second connecting rope and the second supporting block;
reducing the distance between the first fixture block and the second fixture block: the first push rod motor is started, the second clamping blocks are pushed towards the inner side of the detection seat under the action of the sliding rod, the first push rod motor is closed after the second clamping blocks are pushed to a specified distance, then the distance between the two first clamping blocks is adjusted by loosening the adjusting nuts, then the adjusting nuts are screwed, the distance is fixed, and then the length of the second connecting rope is adjusted, so that the second connecting rope between the second supporting block and the sliding block is stretched.
10. The inspection method of an automatic inspection apparatus for the flatness of the surface of a circuit board according to claim 8, wherein: the detailed steps of the step c are as follows: start the spiral motor for first fixture block and second fixture block rotate, are outside upset form, are convenient for place the circuit board, later arrange the circuit board in on the bracing piece, close the spiral motor, first fixture block kick-backs under the effect of first spring, and the second fixture block kick-backs under the effect of second spring, and the position of correction circuit board on detecting the seat later starts servo motor, will detect the seat and transport to detection mechanism's below.
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| CN114570671A (en) * | 2022-05-09 | 2022-06-03 | 北京海诚创想信息技术有限公司 | Automatic classification device based on internet of things classification archives |
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