CN117630016A - Patch inductor surface defect detection equipment and detection method - Google Patents
Patch inductor surface defect detection equipment and detection method Download PDFInfo
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Abstract
The invention relates to the technical field of detection equipment, in particular to surface defect detection equipment and a detection method for a patch inductor, wherein the surface defect detection equipment comprises a rotatable object placing turntable, a turnover device positioned at the same station as a visual detection device and a bracket for fixing the visual detection device; the camera is vertically arranged on the bracket, the detection end of the camera vertically points downwards to the upper part of the object placing rotary table, the object placing rotary table is used for conveying the patch inductor to move, and the camera detects the surface of the patch inductor; the circulating light supplementing device rotates around the camera in the vertical direction, the circulating light supplementing device can ascend and descend along the vertical direction of the camera, the circulating light supplementing device lights the patch inductor located on the object placing turntable, and the circulating light supplementing device provides multi-angle projection light for the camera in shooting through rotating around the camera and ascending and descending along the vertical direction of the camera. The invention enables the equipment to more accurately detect the surface defects of the patch inductor.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to surface defect detection equipment and a surface defect detection method for a chip inductor.
Background
The chip electronic component body type is less, including chip resistor, chip inductor etc. need guarantee at the production in-process that above-mentioned electronic component's surface can not have the mar, and current check out test set that is used for chip electronic component outward appearance is mostly linear type structure and detects the device polydisperse, not only causes the increase of processing space, and manufacturing cost is high moreover, and the material loading and unloading operation when detecting relies on manual control mostly, influences the productivity effect, and the practicality is poor.
Chinese patent CN210449904U discloses a chip resistor outward appearance detection device, including organism, detection mechanism, control box, the C shape detection chamber has vertically been seted up at organism front side surface middle part, the organism front side surface middle part of detection chamber below is provided with puts the thing cabinet through the vertical activity of pulley, the vertical fixed material conveying area that is provided with respectively of installation piece vertical fixed setting of detection chamber rear side and right side inner wall bottom middle part through seting up rectangular form through-hole, the outside of detecting chamber inner wall bottom material conveying area is provided with the material manipulator that moves vertically respectively, detection mechanism includes puts thing carousel, pneumatic regulation pole, detector, put thing carousel and set up the inside at the organism through the pivot activity that detects the vertical setting in chamber inner wall bottom middle part, put the top surface of thing carousel and be the annular shape evenly and set up a plurality of "concave" font spacing hole, detect the vertical activity of thing carousel that passes to put thing carousel is provided with the detection plate, the pneumatic regulation pole is through the installation piece vertical fixed setting of board top of setting up in the side of putting the thing carousel of board top surface, the one end that pneumatic regulation pole kept away from the board surface sets up through the transmission gear axle activity detector, the detector is through the fixed side of connecting the side of the organism side of putting the side of thing carousel through the control box.
According to the scheme, the object placing turntable is used for driving the chip resistor to detect, the space required during detection is reduced, automatic feeding and discharging can be achieved, according to the scheme, the existing detection device is used for placing the chip resistor on the object placing turntable through the manipulator, then the object placing turntable drives the chip resistor to rotate to the detector to detect, meanwhile, the chip resistor is clamped and turned over through turning, the periphery of the chip resistor can be shot by the detector, but the clamping positions of the turning device and the chip resistor cannot be detected, so that the turning device is required to carry out secondary clamping, the surface which is not detected originally can be detected by the detector, then qualified products and unqualified products are respectively taken out through the manipulator after detection is finished, the detection method is also suitable for chip inductors, light is required to assist when the detector detects the chip inductors, if scratches exist on the surface of the chip inductors, the scratch shadow display on the chip inductors is different due to the fact that the incidence angles of different light are different, and the detection error of the detector is easy to occur due to the fact that the light irradiation of the fixed angles is adopted.
Disclosure of Invention
According to the patch inductor surface defect detection equipment and the patch inductor surface defect detection method, the circulating light supplementing device rotates around the camera, so that the circulating light supplementing device can project the patch inductor on the same plane in multiple positions, and meanwhile, the circulating light supplementing device can move along the vertical direction of the camera, so that the circulating light supplementing device can change the projection angle of the circulating light supplementing device to the patch inductor, the limitation of the single-position light projection is avoided, the condition that the patch inductor surface defect cannot be displayed is caused, and the equipment can detect the surface defect of the patch inductor more accurately.
In order to solve the problems in the prior art, the invention provides surface defect detection equipment for a chip inductor, which comprises a rotatable object placing turntable, a feeding device, a visual detection device, a rejecting device and a discharging device, a turnover device positioned at the same station as the visual detection device and a bracket for fixing the visual detection device, wherein the feeding device, the visual detection device, the rejecting device and the discharging device are sequentially arranged around the object placing turntable along the detection procedure direction; the visual detection device comprises a camera and a circulating light supplementing device; the camera is vertically arranged on the bracket, the detection end of the camera vertically points downwards to the upper part of the object placing rotary table, the object placing rotary table is used for conveying the patch inductor to move, and the camera detects the surface of the patch inductor; the circulating light supplementing device rotates around the camera in the vertical direction, the circulating light supplementing device can ascend and descend along the vertical direction of the camera, the circulating light supplementing device lights the patch inductor located on the object placing turntable, and the circulating light supplementing device provides multi-angle projection light for the camera in shooting through rotating around the camera and ascending and descending along the vertical direction of the camera.
Preferably, the circulating light supplementing device comprises a projection lamp and a driving device; the projection lamp is arranged at one side of the camera around the vertical direction of the camera; the driving device is arranged on the projection lamp and drives the projection lamp to rotate around the vertical direction of the camera.
Preferably, the circulating light supplementing device further comprises a lifting device, the lifting device is arranged on the upper portion of the driving device, the lifting device drives the driving device to move along the vertical direction of the camera, and the projection lamp synchronously moves along the vertical direction of the camera along with the driving device.
Preferably, the circulating light supplementing device further comprises a turn counting device, the turn counting device is arranged below the projection lamp and used for detecting the number of turns of the projection lamp when the projection lamp rotates around the camera, and the turn counting device detects that the projection lamp is activated once every time the projection lamp rotates, so that the lifting device drives the driving device to lift.
Preferably, the lifting device comprises a displacement constant device, a lifting rod and a lifting sleeve; the lifting rod is arranged at the upper part of the driving device along the vertical direction of the camera; the lifting sleeve is sleeved on the lifting rod in a sliding way along the axis of the lifting rod, and air or oil is arranged in the lifting sleeve; the displacement constant device is arranged in a lifting sleeve above the lifting rod, a cavity is formed between the upper part of the lifting rod and the displacement constant device under the surrounding of the lifting sleeve, the displacement constant device pumps out air or oil in the cavity, and the lifting rod drives the driving device to rise along the axis of the lifting sleeve.
Preferably, the lifting device further comprises a reset device, two ends of the reset device are respectively connected with the lifting sleeve and the displacement constant device, and the reset device discharges air or oil pumped by the displacement constant device back into the lifting sleeve.
Preferably, the circulating light supplementing device further comprises a rotating device, the rotating device is arranged on the projection lamp, and when the lifting device drives the projection lamp to ascend, the rotating device drives the projection lamp to rotate, so that the included angle between the direct light of the projection lamp and the plane of the object placing turntable is enlarged.
Preferably, the lifting device further comprises a limiting ring, the limiting ring is arranged below the driving device, and the limiting ring limits the final position of the driving device when the driving device moves downwards.
The invention also relates to a patch inductor surface defect detection method, which comprises the following specific steps:
s1, a placement turntable drives a patch inductor to the lower part of a camera and then stops rotating, a driving device drives a projection lamp to rotate around the camera, and the camera shoots and detects the patch inductor when the projection lamp rotates;
s2, counting the number of rotation turns of the projection lamp by the turn counting device, activating the lifting device once after the turn counting device counts one turn of the projection lamp, driving the driving device and the projection lamp to integrally rise by the lifting device, and starting a reset device in the lifting device when the turn counting device counts the appointed number of turns, wherein the reset device resets the driving device and the projection lamp;
s3, the turnover device turns over the patch inductor on the object placing turntable, the camera shoots and detects the side wall of the patch inductor in the turnover process, the camera and the circulating light supplementing device repeat the steps S1 and S2 after the turnover device finishes the turnover, after the detection is finished, the qualified products are discharged through the blanking device, and the unqualified products are removed through the removing device.
Preferably, in step S2, when the lifting device drives the driving device and the projection lamp to lift, the rotating device synchronously drives the projection end of the projection lamp to rotate downwards.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the camera and the circulating light supplementing device are arranged, the circulating light supplementing device rotates around the camera, so that the circulating light supplementing device can carry out the same-plane multi-position projection on the patch inductor, and meanwhile, the circulating light supplementing device can move along the vertical direction of the camera, so that the projection angle of the circulating light supplementing device to the patch inductor can be changed, the situation that the surface defect of the patch inductor cannot be displayed due to the limitation of single-position light projection is avoided, and the equipment can more accurately detect the surface defect of the patch inductor.
Drawings
Fig. 1 is a schematic perspective view of a visual inspection device of a patch inductance surface defect inspection apparatus disposed on one side of a placement turntable.
Fig. 2 is a schematic perspective view of a visual inspection device of a patch inductance surface defect inspection apparatus disposed on a stand.
Fig. 3 is an enlarged schematic view of a portion of the surface defect detection apparatus of the chip inductor shown at a in fig. 2.
Fig. 4 is a schematic cross-sectional perspective view of a visual inspection device of a patch inductance surface defect inspection apparatus disposed on a stand.
Fig. 5 is an enlarged partial schematic view of a patch inductance surface defect detection apparatus at B in fig. 4.
Fig. 6 is an enlarged partial schematic view of the patch inductance surface defect detection apparatus at C in fig. 4.
Fig. 7 is a partially enlarged schematic illustration of a patch inductance surface defect detection apparatus at D in fig. 4.
Fig. 8 is a schematic perspective view of a visual inspection device of the surface defect inspection apparatus of the chip inductor, with a part of the driving device removed.
Fig. 9 is an enlarged partial schematic view of the patch inductance surface defect detection apparatus at E in fig. 8.
Fig. 10 is a schematic perspective view of a visual inspection device of the surface defect inspection apparatus of the chip inductor, with part of the driving device and the camera removed.
The reference numerals in the figures are:
1. a bracket; 2. a camera; 3. a circulating light supplementing device; 31. a projecting lamp; 32. a driving device; 321. a first rotary driver; 322. a first gear; 323. a toothed ring; 33. a lifting device; 331. a displacement amount constant device; 3311. a first electromagnetic ring; 3312. a second electromagnetic ring; 3313. a sliding plate; 3314. a first one-way valve; 3315. a second one-way valve; 3316. a storage tank; 3317. a limit sleeve; 3318. a limit rod; 3319. a second rotating ring; 332. a lifting rod; 3321. a first rotating ring; 333. a lifting sleeve; 334. a reset device; 3341. a circulation pipe; 3342. a switch valve; 335. a limiting ring; 34. a turn counting device; 341. a hall sensor; 342. identifying a block; 35. a rotating device; 351. a push rod; 352. a partition plate; 353. a drive sleeve; 354. a first connection pipe; 355. a second connection pipe; 356. a pump body; 357. an extension frame; 4. a storage rotary disc; 5. and a measured piece.
Detailed Description
The invention will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the invention and the specific objects and functions achieved.
Referring to fig. 1: the surface defect detection equipment for the chip inductor comprises a rotatable object placing turntable 4, a feeding device, a visual detection device, a rejecting device and a discharging device which are sequentially arranged around the object placing turntable 4 along the detection procedure direction, a turnover device which is positioned at the same station as the visual detection device, and a bracket 1 for fixing the visual detection device; the visual detection device comprises a camera 2 and a circulating light supplementing device 3; the camera 2 is vertically arranged on the bracket 1, the detection end of the camera 2 vertically points downwards to the upper part of the object placing rotary table 4, the object placing rotary table 4 is used for conveying the patch inductor to move, and the camera 2 detects the surface of the patch inductor; the circulating light supplementing device 3 rotates around the camera 2 in the vertical direction, the circulating light supplementing device 3 can ascend and descend along the vertical direction of the camera 2, the circulating light supplementing device 3 lights the patch inductor located on the object placing turntable 4, and the circulating light supplementing device 3 provides multi-angle projection light for the camera 2 in shooting through rotating around the camera 2 and ascending and descending along the vertical direction of the camera 2.
To this department of detection of paster inductance provide two kinds of process arrangement, first, each station is along detecting the condition of arranging of process direction around putting thing carousel 4 as follows: the device comprises a feeding device, a visual detection device, a removing device and a discharging device, wherein the station of the visual detection device is provided with the turnover device, the turnover device is used for turnover of the patch inductor on the opposite turntable 4, the working flow is that the feeding device places the patch inductor on the opposite turntable 4, a driver is arranged at the bottom of the opposite turntable 4, the driver drives the opposite turntable 4 to rotate, the opposite turntable 4 drives the patch inductor to move to the lower part of the visual detection device and stop rotating, the visual detection device recognizes the surface of the patch inductor, then the turnover device clamps and rotates the patch inductor positioned on the opposite turntable 4, so that the visual detection device can more comprehensively detect the surface of the patch inductor, after a period of time, the turnover device finishes detection, the patch inductor is placed on the opposite turntable 4, the opposite turntable 4 drives the patch inductor to move to the removing device and the discharging device, if the detected patch inductor has defects on the surface, the patch inductor can be removed when the opposite turntable 4 drives the patch inductor to pass through the removing device, and the patch inductor can be removed from the opposite turntable 4 after the patch inductor is slightly removed from the opposite turntable; second, the arrangement of each station around the object placing turntable 4 along the detection process direction is as follows: the device comprises a feeding device, a visual detection device a, a turnover device, a visual detection device b, a rejecting device and a discharging device; the work flow is that the feeding device places the patch inductor on the placement turntable 4, the placement turntable 4 drives the patch inductor to pass through the visual detection device a and stop, the visual detection device a detects the patch inductor, then the placement turntable 4 moves the detected patch inductor to the turnover device, the turnover device turns over the patch inductor, so that the original bottom of the patch inductor is turned over to the upper part, then the turnover device places the patch inductor on the placement turntable 4, the placement turntable 4 drives the patch inductor to move again and pass through the visual detection device b, then the placement turntable 4 stops, the visual detection device b detects the patch inductor on the placement turntable 4, thus the detection on all surfaces of the patch inductor is completed, the rear removing device and the blanking device are identical with the first operation mode, the repeated operation mode is omitted, the feeding device, the turnover device, the removing device and the blanking device are not in the prior art, the first operation mode is adopted at this time, the working process of the visual detection device is described, after the feeding device is completed, the placement turntable 4 drives the patch inductor to move again and pass through the visual detection device b, the visual detection device b can simultaneously rotate around the patch inductor 3 in the same direction as the light-supplementing device 3, the light-projecting device 3 can circulate around the patch inductor, the patch inductor 3 can circulate around the light-supplementing device 3, the patch inductor is circulated, the light-supplementing device 2 can circulate around the patch inductor, and the patch inductor is circulated in the direction of the patch 3, and the light-supplementing device is circulated around the patch 3 at the patch 2 at the same place 3, the angle that the light of so paster inductance department was cast also can change, along with circulation light filling device 3 rises along the vertical direction of camera 2, the projection angle that is located paster inductance department light also can become progressively big, so the fine mar that is located paster inductance surface just can produce the shadow under the multi-angle of light is cast, so camera 2 detects the surface defect of paster inductance more easily, in order to guarantee the efficiency when detecting, circulation light filling device 3 just can rise once around camera 2 rotation a round, and so on, preset the rising number of times to circulation light filling device 3, when reaching the rising number of times, circulation light filling device 3 resets, turning device starts to carry out the centre gripping to the paster inductance and overturns, after accomplishing the upper surface and detect, the upset of paster inductance on the counter turntable 4 is rotated in the upset, the in-process camera 2 just can detect the lateral wall of paster inductance, after the upset of paster inductance is accomplished to camera 2 carries out the secondary detection to the upper portion surface after the inductor upset, circulation light filling device 3 carries out the secondary light inductance and detects, if the paster inductance, reject qualified device is discharged through the discharge if the device.
Referring to fig. 1, 2 and 4: the circulating light supplementing device 3 comprises a projection lamp 31 and a driving device 32; the projecting lamp 31 is arranged on one side of the camera 2 around the vertical direction of the camera 2; the driving device 32 is provided on the projector 31, and the driving device 32 drives the projector 31 to rotate around the vertical direction of the camera 2.
The driving device 32 comprises a first rotary driver 321, a first gear 322 and a toothed ring 323, wherein the first rotary driver 321 is vertically arranged on the support 1, the first rotary driver 321 is arranged parallel to the camera 2, the first gear 322 is fixedly arranged at the output end of the first rotary driver 321, the toothed ring 323 is rotationally sleeved on the periphery of the camera 2 along the vertical direction of the camera 2, the toothed ring 323 is rotationally matched with the camera 2, the first gear 322 and the toothed ring 323 are meshed with each other, the projection lamp 31 is fixedly arranged at the lower part of the toothed ring 323, the first rotary driver 321 is preferably a servo motor, after the first rotary driver 321 is started, the first rotary driver 321 drives the first gear 322 to rotate, the toothed ring 323 meshed with the first gear 322 is further rotated, and the toothed ring 323 drives the projection lamp 31 to synchronously rotate, so that the projection lamp 31 can polish around the camera 2.
Referring to fig. 1 and 2: the circulating light supplementing device 3 further comprises a lifting device 33, the lifting device 33 is arranged on the upper portion of the driving device 32, the lifting device 33 drives the driving device 32 to move along the vertical direction of the camera 2, and the projection lamp 31 synchronously moves along with the driving device 32 in the vertical direction of the camera 2.
Referring to fig. 1-3: the circulating light supplementing device 3 further comprises a circle counting device 34, the circle counting device 34 is arranged below the projecting lamp 31, the circle counting device 34 is used for detecting the circle number of the projecting lamp 31 when rotating around the camera 2, and the circle counting device 34 detects that the projecting lamp 31 is activated once every time the projecting lamp 31 rotates, so that the lifting device 33 drives the driving device 32 to lift.
The turn counting device 34 comprises a hall sensor 341 and an identification block 342, the identification block 342 is fixedly arranged at the lower part of the toothed ring 323, the hall sensor 341 is vertically arranged below the identification block 342, the detection end of the hall sensor 341 is vertically upward, the hall sensor 341 detects the movement condition of the identification block 342, when the toothed ring 323 drives the identification block 342 to pass through the position of the hall sensor 341, the hall sensor 341 can identify the identification block 342, then the toothed ring 323 continues to rotate, when the hall sensor 341 identifies the identification block 342 again, the toothed ring 323 is indicated to rotate for one turn, the projecting lamp 31 is also indicated to rotate for one turn, a processor is arranged in the device, and after the hall sensor 341 transmits signals to the processor, the processor controls the lifting device 33 to lift through a controller.
Referring to fig. 2, 4, 5 and 8: the lifting device 33 includes a displacement amount constant device 331, a lifting lever 332, and a lifting sleeve 333; the lift lever 332 is provided at an upper portion of the driving device 32 in the vertical direction of the camera 2; the lifting sleeve 333 is slidably sleeved on the lifting rod 332 along the axis of the lifting rod 332, and air or oil is arranged in the lifting sleeve 333; the displacement constant device 331 is disposed in a lifting sleeve 333 above the lifting rod 332, a cavity is formed between the upper portion of the lifting rod 332 and the displacement constant device 331 under the surrounding of the lifting sleeve 333, the displacement constant device 331 extracts air or oil in the cavity, and the lifting rod 332 drives the driving device 32 to rise along the axis of the lifting sleeve 333.
The lifting device 33 further comprises a first rotating ring 3321, the first rotating ring 3321 is rotatably arranged at the periphery of the camera 2 along the vertical direction of the camera 2, the peripheral wall of the first rotating ring 3321 is clamped with the inner ring of the toothed ring 323 and is in rotating fit with the toothed ring 323, the bottom of the lifting rod 332 is fixedly connected with the upper part of the first rotating ring 3321, when the lifting rod 332 is lifted, the first rotating ring 3321 can drive the toothed ring 323 to synchronously lift, the displacement constant device 331 comprises a first electromagnetic ring 3311, a second electromagnetic ring 3312, a sliding plate 3313, a first check valve 3314, a second check valve 3315 and a storage box 3316, the second electromagnetic ring 3312 is fixedly arranged above the lifting rod 332 along the axis of the lifting sleeve 333, the first electromagnetic ring 3311 is fixedly arranged above the second electromagnetic ring 3312 along the axis of the lifting sleeve 333, a gap is reserved between the first electromagnetic ring 3311 and the second electromagnetic ring 3312, the sliding plate 3313 is slidingly arranged in the gap along the axis of the lifting plate, the first electromagnetic ring 3311 and the second electromagnetic ring 3312 are energized alternatively, the first electromagnetic ring 3311 and the second electromagnetic ring 3312 both have attraction to the sliding plate 3313, the first one-way valve 3314 is arranged on the sliding plate 3313, the first one-way valve 3314 allows air or oil below the lifting sleeve 333 to flow to the upper part of the first electromagnetic ring 3311, the second one-way valve 3315 is arranged on the upper part of the first electromagnetic ring 3311, the storage tank 3316 is arranged on the upper part of the second one-way valve 3315, the air or oil in the lifting sleeve 333 enters the storage tank 3316 through the first one-way valve 3314 and the second one-way valve 3315, the working principle is that when lifting is needed, the sliding plate 3313 is positioned on the second electromagnetic ring 3312, the second electromagnetic ring 3312 is deenergized, the first electromagnetic ring 3311 is energized, the sliding plate 3313 is pressed to the second one-way valve 5 under the attraction of the first electromagnetic ring 3311 due to the first one-way valve 3314 arranged on the sliding plate 3313, the second check valve 3315 allows air or oil in the lower side to enter the storage tank 3316, so that the air or oil extruded by the sliding plate 3313 can enter the storage tank 3316 through the second check valve 3315, then the first electromagnetic ring 3311 is powered off, the second electromagnetic ring 3312 is powered on, the sliding plate 3313 descends under the attraction of the second electromagnetic ring 3312, the air or oil in the storage tank 3316 can not flow back into a gap when the sliding plate 3313 descends due to the unidirectional limitation of the second check valve 3315 above the sliding plate 3313, and therefore the air or oil below the sliding plate 3313 can flow into the upper side of the sliding plate 3313 in the descending process of the sliding plate 3313, when the sliding plate 3313 ascends again under the attraction of the first electromagnet, the sliding plate 3313 drives the lifting rod 332 below the sliding plate 3313 to ascend in the lifting sleeve 333, the limiting rod 3318 and the second rotating ring 3319 are arranged on the sliding plate 3313 along the axis of the sliding plate 3311, and the limiting sleeve is matched with the limiting rod 3317 along the axis of the sliding plate 3317, and the limiting sleeve is arranged on the sliding plate 3317 along the axis of the sliding plate 3317, and the limiting sleeve is arranged along the axis of the limiting sleeve 323 along the axis of the sliding plate 3317 and the limiting sleeve 3317 is fixed along the axis of the limiting sleeve 323.
Referring to fig. 7 and 8: the lifting device 33 further comprises a resetting device 334, two ends of the resetting device 334 are respectively connected with the lifting sleeve 333 and the displacement constant device 331, and the resetting device 334 discharges air or oil pumped by the displacement constant device 331 back into the lifting sleeve 333.
The reset device 334 includes a circulation pipe 3341 and a switch valve 3342, two ends of the circulation pipe 3341 are respectively communicated with the inside of the lifting sleeve 333 below the storage tank 3316 and the second electromagnetic ring 3312, the switch valve 3342 is arranged on the circulation pipe 3341, when the displacement constant device 331 is in a running state, the switch valve 3342 is in a closed state, air or oil in the lifting sleeve 333 can enter the storage tank 3316 for storage, after the number of turns is counted by the turn counting device 34, the switch valve 3342 is opened, meanwhile, the displacement constant device 331 stops running, if air is stored in the storage tank 3316, the air can flow back into the lifting sleeve 333 under the action of air pressure, because when the air enters the storage tank 3316, when the switch valve 3342 is not opened, the air pressure in the storage tank 3316 can continuously rise, and if the oil is stored in the storage tank 3316, the oil can flow back into the lifting sleeve 333 under the action of self gravity after the switch valve 3342 is opened.
Referring to fig. 6 and 8-10: the circulation light filling device 3 still includes rotating device 35, and rotating device 35 sets up on the projecting lamp, and when elevating gear 33 drove the projecting lamp and risen, rotating device 35 drove the projecting lamp and rotated for the contained angle between the direct light of projecting lamp and the thing carousel 4 plane of putting becomes big.
The rotating device 35 comprises a pushing rod 351, a partition plate 352, a driving sleeve 353, a first connecting pipe 354, a second connecting pipe 355, a pump body 356 and an extension frame 357, wherein the pushing rod 351 is fixedly arranged on the upper portion of a toothed ring 323 along the vertical direction of a camera 2, the driving sleeve 353 is fixedly arranged on the lower portion of the second rotating ring 3319, the upper portion of the pushing rod 351 extends to the inside of the driving sleeve 353, the partition plate 352 is fixedly arranged on the upper portion of the pushing rod 351, the partition plate 352 and the driving sleeve 353 are in sliding fit along the height direction of the driving sleeve 353, the partition plate 352 separates the driving sleeve 353 into a first cavity and a second cavity, oil is respectively contained in the first cavity and the second cavity, the pump body 356 is arranged on one side of the projection lamp, the output shaft of the pump body 356 is fixedly connected with the projection lamp, the two ends of the first connecting pipe 354 are respectively communicated with the output ends of the first cavity and the pump body, the side of the pump body 356 is provided with the extension frame 357, the upper portion of the lamp is hinged with the extension frame 357, when the toothed ring 323 is driven by the lifting device 33 to lift the toothed ring to lift, the toothed ring 351 and then the first connecting pipe 351 can be driven to rotate along the vertical direction of the driving rod 351 to the first cavity and the second cavity 356, and then the first cavity can be driven to rotate by the first cavity and the second cavity 356 to drive the first cavity and the second cavity to the pump 356.
Referring to fig. 2: the lifting device 33 further comprises a limiting ring 335, the limiting ring 335 is arranged below the driving device 32, and the limiting ring 335 limits the final position of the driving device 32 when the driving device 32 moves downwards.
When the driving device 32 is reset, the lower part of the driving device 32 needs to be limited by the limiting ring 335, otherwise, the driving device 32 may slip from the lower part of the camera 2.
Referring to fig. 1-10: the invention also relates to a patch inductor surface defect detection method, which comprises the following specific steps:
s1, a placement turntable 4 drives a patch inductor to the lower side of a camera 2 and then stops rotating, a driving device 32 drives a projection lamp 31 to rotate around the camera 2, and the camera 2 shoots and detects the patch inductor when the projection lamp 31 rotates;
s2, counting the number of rotation turns of the projection lamp 31 by the turn counting device 34, activating the lifting device 33 once after the turn counting device 34 counts the number of rotation turns of the projection lamp 31 each time, driving the driving device 32 and the projection lamp 31 to integrally rise by the lifting device 33, and starting the reset device 334 in the lifting device 33 when the turn counting device 34 counts the designated number of rotation turns, wherein the reset device 334 resets the driving device 32 and the projection lamp 31;
s3, the turnover device turns over the patch inductor on the object placing turntable 4, the camera 2 shoots and detects the side wall of the patch inductor in the turnover process, the turnover device finishes the steps of repeating the S1 and the S2 of the camera 2 and the circulating light supplementing device 3 after the turnover, and after the detection is finished, the qualified products are discharged through the blanking device and the unqualified products are removed through the removing device.
Referring to fig. 1-10: in step S2, when the lifting device 33 drives the driving device 32 and the projection lamp to lift, the rotating device 35 synchronously drives the projection end of the projection lamp to rotate downward.
This is because when the lifting device 33 drives the projector to rise, the direct light of the projector shifts on the patch inductor, and if the projection angle of the projector is not adjusted, the patch inductor cannot obtain enough light irradiation, so that the normal detection of the camera 2 is affected.
The foregoing examples merely illustrate one or more embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (10)
1. The surface defect detection equipment for the chip inductor comprises a rotatable object placing rotary table (4), a feeding device, a visual detection device, a rejecting device and a discharging device which are sequentially arranged around the object placing rotary table (4) along the detection procedure direction, a turnover device positioned at the same station as the visual detection device and a bracket (1) for fixing the visual detection device;
the visual inspection device is characterized by comprising a camera (2) and a circulating light supplementing device (3);
the camera (2) is vertically arranged on the bracket (1), the detection end of the camera (2) vertically points downwards to the upper part of the object placing rotary table (4), the object placing rotary table (4) is used for conveying the chip inductor to move, and the camera (2) detects the surface of the chip inductor;
the circulating light supplementing device (3) is arranged around the camera (2) in a rotating mode in the surrounding of the camera (2), the circulating light supplementing device (3) can ascend and descend along the vertical direction of the camera (2), the circulating light supplementing device (3) is used for polishing patch inductors on the object turntable (4), and the circulating light supplementing device (3) is used for providing multi-angle projection light for the camera (2) in shooting through rotating around the camera (2) and ascending and descending along the vertical direction of the camera (2).
2. A chip inductor surface defect detection device according to claim 1, characterized in that the circulating light supplementing means (3) comprises a projecting lamp (31) and a driving means (32);
the projection lamp (31) is arranged on one side of the camera (2) around the vertical direction of the camera (2);
the driving device (32) is arranged on the projection lamp (31), and the driving device (32) drives the projection lamp (31) to rotate around the vertical direction of the camera (2).
3. The surface defect detection device for the chip inductor according to claim 2, wherein the circulating light supplementing device (3) further comprises a lifting device (33), the lifting device (33) is arranged on the upper portion of the driving device (32), the lifting device (33) drives the driving device (32) to move along the vertical direction of the camera (2), and the projection lamp (31) synchronously moves along the driving device (32) in the vertical direction of the camera (2).
4. A surface defect detection device for chip inductors according to claim 3, characterized in that the circulating light supplementing device (3) further comprises a turn counting device (34), the turn counting device (34) is arranged below the projecting lamp (31), the turn counting device (34) is used for detecting the turn number of the projecting lamp (31) when rotating around the camera (2), the lifting device (33) is activated once every time the projecting lamp (31) rotates, and the lifting device (33) drives the driving device (32) to lift.
5. A chip inductor surface defect detecting apparatus according to claim 4, wherein the lifting means (33) comprises a displacement amount constant means (331), a lifting rod (332) and a lifting sleeve (333);
the lifting rod (332) is arranged at the upper part of the driving device (32) along the vertical direction of the camera (2);
the lifting sleeve (333) is sleeved on the lifting rod (332) in a sliding way along the axis of the lifting rod (332), and air or oil is arranged in the lifting sleeve (333);
the displacement constant device (331) is arranged in a lifting sleeve (333) above the lifting rod (332), a cavity is formed between the upper part of the lifting rod (332) and the displacement constant device (331) under the surrounding of the lifting sleeve (333), the displacement constant device (331) pumps out air or oil in the cavity, and the lifting rod (332) drives the driving device (32) to ascend along the axis of the lifting sleeve (333).
6. The surface defect detecting apparatus of claim 5, wherein the lifting device (33) further comprises a reset device (334), two ends of the reset device (334) are respectively connected with the lifting sleeve (333) and the displacement constant device (331), and the reset device (334) discharges air or oil pumped by the displacement constant device (331) back into the lifting sleeve (333).
7. The surface defect detection device for chip inductors according to claim 6, wherein the circulating light supplementing device (3) further comprises a rotating device (35), the rotating device (35) is arranged on the projection lamp, and when the lifting device (33) drives the projection lamp to lift, the rotating device (35) drives the projection lamp to rotate, so that an included angle between direct light rays of the projection lamp and a plane of the object placing turntable (4) is increased.
8. A surface defect detecting device for chip inductors according to claim 3, wherein the lifting means (33) further comprises a limit ring (335), the limit ring (335) is arranged below the driving means (32), and the limit ring (335) limits the final position of the driving means (32) when it moves down.
9. A surface defect detection method for a chip inductor, which adopts the surface defect detection equipment for the chip inductor as claimed in claim 7, and is characterized by comprising the following specific steps:
s1, a placement turntable (4) drives a patch inductor to the lower part of a camera (2) and then stops rotating, a driving device (32) drives a projection lamp (31) to rotate around the camera (2), and the camera (2) shoots and detects the patch inductor when the projection lamp (31) rotates;
s2, counting the number of rotation turns of the projecting lamp (31) by the turn counting device (34), activating the lifting device (33) once after the turn counting device (34) rotates the projecting lamp (31) once, driving the driving device (32) and the projecting lamp (31) to integrally rise by the lifting device (33), and starting the reset device (334) in the lifting device (33) when the number of rotation counting device (34) counts the designated number of turns, wherein the reset device (334) resets the driving device (32) and the projecting lamp (31);
s3, the turnover device turns over the patch inductor on the object placing turntable (4), the camera (2) photographs and detects the side wall of the patch inductor in the turnover process, the turnover device finishes the steps of S1 and S2 repeatedly after the turnover device finishes the turnover, the qualified product is discharged through the blanking device, and the unqualified product is removed through the removing device after the detection is finished.
10. The surface defect detection method of claim 9, wherein in step S2, when the lifting device (33) drives the driving device (32) and the projection lamp to lift, the rotating device (35) synchronously drives the projection end of the projection lamp to rotate downwards.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311635413.2A CN117630016A (en) | 2023-12-01 | 2023-12-01 | Patch inductor surface defect detection equipment and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311635413.2A CN117630016A (en) | 2023-12-01 | 2023-12-01 | Patch inductor surface defect detection equipment and detection method |
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