LED lighting device and lighting method for visual inspection

Abstract

The invention discloses an LED lighting device and lighting method for visual inspection, and relates to the technical field of visual inspection, and the LED lighting device comprises an LED lighting lamp which is an LED light source; the arch-shaped track is of an arch-bridge-shaped structure which is bent upwards; the walking mechanism is movably connected to the outer wall of the arched track and can move in the peripheral direction of the arched track; and the driving mechanism is arranged between the walking mechanism and the LED illuminating lamp, and the driving mechanism is used for adjusting the illuminating position of the LED illuminating lamp. Through cooperation between the arched track and the walking mechanism, the LED illuminating lamp can move along the outer wall of the arched track through the walking mechanism, and the LED illuminating lamp is kept to irradiate towards one area all the time, so that the angle of irradiating the same area by the LED illuminating lamp is adjusted, and the comprehensiveness and precision of appearance defect detection of a detected object are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of visual inspection, and particularly relates to an LED lighting device and a lighting method for visual inspection. Background Art

[0002] Visual inspection refers to converting the captured target into an image signal through a machine vision product, transmitting it to a dedicated image processing system, and converting it into a digital signal according to information such as pixel distribution, brightness, and color; the image system performs various operations on these signals to extract the features of the target, and then achieves quality inspection of the surface defects of the workpiece according to the discrimination result.

[0003] In the prior art, in a visual inspection system, it is often necessary to cooperate with a lighting device for use. The lighting device provides light to the surface of the object to be detected, so that the visual system can clearly see the details, texture, and color of the object, and assist the visual inspection system to accurately identify the location of defects, inconsistencies, or faults;

[0004] However, the lighting devices used in today's visual inspection systems all irradiate the object to be detected at a single angle, or irradiate at multiple angles through multiple lighting devices. The usage mode is relatively single, and the irradiation angle of the lighting device cannot be adjusted according to actual usage needs, resulting in low adaptability of the lighting device in use and difficulty in meeting the usage requirements. For this reason, an LED lighting device and a lighting method for visual inspection are proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide an LED lighting device and a lighting method for visual inspection to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An LED lighting device for visual inspection, comprising:

[0007] An LED lighting lamp, and the LED lighting lamp is an LED light source;

[0008] An arched track, and the arched track has an upwardly curved arch-shaped structure;

[0009] A traveling mechanism, the traveling mechanism is movably connected to the outer wall of the arched track and can move along the outer circumferential direction of the arched track, and the positioning roller cooperates with the arched track to adjust the irradiation angle of the LED lighting lamp;

[0010] A driving mechanism, the driving mechanism is arranged between the traveling mechanism and the LED lighting lamp, and the driving mechanism is used for adjusting the lighting position of the LED lighting lamp.

[0011] Preferably, the traveling mechanism includes:

[0012] Mounting base, a connecting sliding hole communicating with both sides of the mounting base is arranged inside the mounting base, and the mounting base is slidably connected with the outer wall of the LED lighting lamp through the connecting sliding hole;

[0013] Traveling gear, a gear groove communicating with the connecting sliding hole is arranged at the top of the mounting base, the traveling gear is rotatably connected inside the gear groove, and a traveling tooth groove adapted to the traveling gear is arranged on one side of the LED lighting lamp close to the traveling gear;

[0014] Driving motor, the driving motor is fixedly connected to the side wall of the mounting base and drives the traveling gear to rotate.

[0015] Preferably, guide rails matching the shape of the arched rail are fixedly connected to the middle parts of both side walls of the arched rail, and positioning rollers fitting the outer walls of the upper and lower sides of the guide rail are rotatably connected in the connecting sliding hole.

[0016] Preferably, the driving mechanism includes:

[0017] Sliding sleeve, a sliding cavity recessed inward is arranged on one side of the sliding sleeve facing the LED lighting lamp, and a telescopic slider for connecting the LED lighting lamp is slidably connected in the sliding cavity;

[0018] Ejector rod, a jacking slot is arranged on one side of the sliding sleeve close to the traveling mechanism, the ejector rod is slidably connected in the jacking slot and can telescopically move vertically along the jacking slot, and one end of the ejector rod is fixedly connected with anti-slip rubber and extends into the connecting sliding hole.

[0019] Preferably, a vertical through groove communicating with the sliding cavity is formed in the side wall of the sliding sleeve, a guide block is slidably connected in the vertical through groove, a driving rod extending downward is rotatably connected to the position obliquely above the vertical through groove on the side wall of the sliding sleeve, a guiding channel is formed at the end of the driving rod close to the vertical through groove, one end of the guide block extends into the guiding channel, and the other end of the guide block is fixedly connected with the outer wall of the telescopic slider.

[0020] Preferably, the driving rod is composed of a straight plate part with a long strip structure and a sector gear part with a sector gear structure, the driving rod rotates around the center of the sector gear part, the bottom of the jacking slot is circular and rotatably connected with a disc body, a transmission gear rotatably connected coaxially with the disc body is arranged on one side of the sliding sleeve close to the driving rod, the outer wall of the transmission gear is meshed with the outer wall of the sector gear part, an arc-shaped channel is formed on the end face of the disc body, the bottom of the ejector rod is slidably connected with the inner side of the arc-shaped channel, and a telescopic driving member is hinged between the bottom of the sliding sleeve and the driving rod.

[0021] Preferably, a dust-proof net is fixedly connected to the position of the heat dissipation area arranged on the outer wall of the LED lighting lamp, and a dust removal mechanism for cleaning the dust on the surface of the dust-proof net is arranged on the driving mechanism.

[0022] Preferably, the dust removal mechanism includes:

[0023] Two jet nozzles, which are symmetrically arranged at one end of the sliding sleeve close to the LED lighting lamp. The inner side of the jet nozzle is in the shape of an inclined surface that is wider at the top and narrower at the bottom. A frustum-shaped column that is narrower at the top and wider at the bottom is fixedly connected between the telescopic slider and the LED lighting lamp;

[0024] A corrugated airbag, which is fixedly arranged between the telescopic slider and the sliding cavity. The corrugated airbag is used to supply gas for blowing the dust on the surface of the dust-proof net into the jet nozzle;

[0025] A clamping spring, which is sleeved in the arc-shaped grooves arranged on the outer walls of the two jet nozzles.

[0026] Preferably, one end of the corrugated airbag close to the inner wall of the sliding cavity is fixedly connected with a vent seat with a hollow structure. An intake check valve and an outlet check valve that are communicated with its inner cavity are arranged on the outer wall of the vent seat. The outlet check valve is communicated with the jet nozzle through a hose;

[0027] A jet through-hole that is not communicated at both ends is opened inside the jet nozzle. A plurality of jet ports that are communicated with the jet through-hole are opened at the bottom end of the jet nozzle. The jet ports are in the shape of a frustum that is wider at the top and narrower at the bottom.

[0028] On the other hand, the present invention also provides an illumination method for an LED lighting device for visual inspection. Using an LED lighting device for visual inspection as described above, it includes the following steps:

[0029] When the LED lighting lamp needs to provide illumination, the telescopic driving member acts to elongate and push the driving rod to rotate. During the rotation of the driving rod, a thrust is provided to the guiding block by using the guiding channel, and the guiding block is limited and guided by the vertical through groove, so that the guiding block can drive the telescopic slider to move vertically downward along the vertical through groove, and the LED lighting lamp extends to the working position; during the rotation of the driving rod, since the sector gear portion at the top position of the driving rod is in meshing with the transmission gear, the disc body coaxially connected with the transmission gear can be synchronously driven to rotate when the driving rod rotates. When the disc body rotates, the ejector rod is driven to retract into the jacking slot through the arc-shaped channel, and the extrusion state between the contact anti-slip rubber and the outer wall of the arched track is released, so as to unlock the position of the mounting seat on the arched track;

[0030] The driving motor drives the traveling gear to rotate clockwise or counterclockwise. Cooperating with the meshing of the traveling gear and the traveling tooth grooves at the outer peripheral wall of the arched track, when the traveling gear rotates, the mounting seat can be driven to move along the shape track of the arched track, the position of the LED lighting lamp is adjusted, and at the same time, in cooperation with the shape characteristics of the arched track and the moving characteristics of the traveling mechanism, the irradiation angle of the LED lighting lamp on the object to be detected is adjusted to realize the multi-angle irradiation of the object to be detected;

[0031] When the LED lighting lamp retracts to the shutdown position after use, it can not only lock the position between the traveling mechanism and the arched track, but also squeeze the corrugated airbag during the retraction of the telescopic slider, so that the gas enters the jet through-hole of the jet nozzle along the hose through the ventilation seat and the one-way air outlet valve on the ventilation seat, and is discharged downward after being pressurized through the jet port to remove dust from the dust-proof net position on the outer wall of the LED lighting lamp. At the same time, when the LED lighting lamp moves towards the sliding sleeve, the frustum column squeezes the jet nozzle by using its own inclined plane characteristics, and cooperates with the elastic clamping function of the clamping spring, so that the jet nozzle makes a horizontal outward translation movement at the bottom end of the sliding sleeve, thereby expanding the area of gas dust removal on the dust-proof net.

[0032] Compared with the prior art, the technical effects of the present invention are as follows:

[0033] (1) Through the cooperation between the arched track and the traveling mechanism of the present invention, the LED lighting lamp can move along the outer wall of the arched track by using the traveling mechanism, and keep the LED lighting lamp always irradiating towards one area, so as to adjust the irradiation angle of the LED lighting lamp on the same area, which is beneficial to improving the comprehensiveness and accuracy of the appearance defect detection of the object to be measured.

[0034] (2) In the driving mechanism of the present invention, the driving rod is composed of a straight plate part and a sector gear part. When the telescopic driving part acts to drive the guide block to move in the vertical through groove through the guide channel on the driving rod and drive the LED lighting lamp to extend outwards to the working position, the sector gear part on the driving rod can drive the ejector rod to retract through the transmission gear and the disc body, and release the lock between the anti-slip rubber and the arched track and the traveling mechanism, so as to release the insurance between the traveling mechanism and the arched track while completing the adjustment of the working position of the LED lighting lamp, and improve the safety of the LED lighting lamp when used on the arched track.

[0035] (3) By arranging a dust removal mechanism between the telescopic sliders of the present invention, the driving of the dust removal mechanism to jet can be achieved by using the movement of the telescopic slider retracting into the sliding cavity, and the dust attached to the surface of the dust-proof net on the outer wall of the LED lighting lamp is removed by using the gas, so as to ensure the heat dissipation effect of the LED lighting lamp at the dust-proof net position. At the same time, through the setting of the jet nozzle and the frustum column, the adjustment of the jet position of the jet nozzle can be realized by using the movement of the LED lighting lamp, so that the jet nozzle moves and jets, expanding the area of dust removal on the dust-proof net and further improving the dust removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front structural schematic diagram of the present invention.

[0037] Figure 2 It is a three-dimensional sectional structural schematic diagram of the traveling mechanism of the present invention.

[0038] Figure 3Schematic diagram of the partial three-dimensional structure of the arched track of the present invention.

[0039] Figure 4 Schematic diagram of the partial front sectional structure of the LED lighting lamp of the present invention.

[0040] Figure 5 Schematic diagram of the back structure of the connecting seat of the present invention.

[0041] Figure 6 Schematic diagram of the partial three-dimensional structure of the air jet nozzle of the present invention.

[0042] Figure 7 Schematic diagram of the three-dimensional sectional structure of the air vent seat of the present invention.

[0043] Figure 8 Schematic diagram of the lamp bead zoning of the single-station version of the LED lighting lamp of the present invention.

[0044] Figure 9 Schematic diagram of the lamp bead zoning of the double-station version of the LED lighting lamp of the present invention.

[0045] In the figure: 100, LED lighting lamp; 101, dust-proof net; 102, frustum column;

[0046] 200, arched track; 201, running tooth groove; 202, guiding track;

[0047] 300, running mechanism; 301, mounting seat; 302, connecting sliding hole; 303, positioning roller; 304, gear groove; 305, running gear; 306, driving motor;

[0048] 400, driving mechanism; 401, sliding sleeve; 402, sliding cavity; 403, telescopic slider; 404, vertical through groove; 405, guiding block; 406, driving rod; 461, straight plate part; 462, sector gear part; 407, guiding channel; 408, telescopic driving part; 409, transmission gear; 410, disc body; 411, jacking slot; 412, arc channel; 413, ejector rod; 414, anti-slip rubber;

[0049] 500, dust removal mechanism; 501, air vent seat; 502, corrugated airbag; 503, airbag spring; 504, intake one-way valve; 505, exhaust one-way valve; 506, air jet nozzle; 507, clamping spring; 508, air jet through hole; 509, air jet port. Detailed implementation manners

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0051] The present invention provides an LED lighting device for visual inspection as Figures 1-7 shown.

[0052] Embodiment 1: It includes an LED lighting lamp 100, an arched track 200, and a traveling mechanism 300. The LED lighting lamp 100 is an LED light source. The arched track 200 has an upwardly curved arch-like structure. The traveling mechanism 300 is movably connected to the outer wall of the arched track 200 and can move along the outer circumference direction of the arched track 200. The positioning roller 303 cooperates with the arched track 200 to adjust the irradiation angle of the LED lighting lamp 100. By utilizing the arched feature of the arched track 200 and cooperating with the moving driving function of the traveling mechanism 300, the LED lighting lamp 100 can move along the arched trajectory formed by the LED lighting lamp 100 through the traveling mechanism 300, and the LED lighting lamp 100 always faces the circular position area of the arched track 200. In this way, the adjustment of the irradiation angle can be realized during the movement of the LED lighting lamp 100, so as to increase the irradiation area and angle of the object to be detected, making the appearance defect detection of the object to be detected more comprehensive and accurate. In addition, a disc seat and a corresponding driving structure can be assembled at the bottom of the arched track 200, so that the arched track 200 can rotate and adjust its position along the radial direction of the disc on the disc, which helps to further improve the irradiable position and irradiation angle of the LED lighting lamp 100.

[0053] In other embodiments, the LED lighting lamp 100 may be composed of a bowl-shaped lamp holder and LED lamp beads distributed on the arc inner wall of the bowl-shaped lamp holder. Each LED lamp bead can be connected to the lamp holder by means of a universal joint, and an interference fit is formed between the two, so that a single LED lamp bead can be adjusted in angle. Moreover, the LED wavelength, LED brightness, and LED lighting duration of each area on the bowl-shaped lamp holder can be independently set through software in the prior art. The lighting timing sequence of any LED area under a working process can be configured through software, and a synchronous exposure signal can be output for each timing step for the camera to collect. Additionally, multiple working processes can be configured and combined arbitrarily through software. This not only effectively improves the lighting effect and meets personalized usage requirements, but also helps to save energy and extend the service life of the lamp. The software for adjusting the LED wavelength, LED brightness, and LED lighting duration of each area on the bowl-shaped lamp holder can adopt Quantum software or LEDPlayer6.0 control software in the prior art. In addition, the LED lighting lamp 100 can be of a single-station version or a double-station version. Specifically, the single-station version of the LED lighting lamp 100 is divided into 48 zones, and the double-station version of the LED lighting lamp 100 is divided into 76 zones. Specifically, the single-station version is as shown in Figure 8 as shown, and the double-station version is as shown in Figure 9 as shown.

[0054] Among them, the traveling mechanism 300 includes a mounting seat 301, a traveling gear 305, and a driving motor 306. A connecting sliding hole 302 communicating with both sides of the mounting seat 301 is provided inside the mounting seat 301. The mounting seat 301 is slidably connected to the outer wall of the LED lighting lamp 100 through the connecting sliding hole 302. A gear groove 304 communicating with the connecting sliding hole 302 is provided at the top of the mounting seat 301. The traveling gear 305 is rotatably connected inside the gear groove 304. A traveling tooth groove 201 adapted to the traveling gear 305 is provided on one side of the LED lighting lamp 100 close to the traveling gear 305. The driving motor 306 is fixedly connected to the side wall of the mounting seat 301 and drives the traveling gear 305 to rotate. The driving motor 306 is controlled by an external control terminal control cabinet to start, stop, and change the rotation direction. By engaging the position of the traveling gear 305 with the traveling tooth groove 201 on the arched track 200 and sleeving the mounting seat 301 on the outer wall of the arched track 200 through the connecting sliding hole 302, when the traveling gear 305 rotates, it can drive the mounting seat 301 to move along the outer wall of the arched track 200, thereby adjusting the position of the LED lighting lamp 100 on the arched track 200 and realizing the adjustment of the irradiation angle of the LED lighting lamp 100 during the movement. In addition, the driving motor 306 can be configured with a self-locking function to lock and limit the rotation shaft of the driving motor 306 in the radial direction, so that the mounting seat 301 can be locked in position after moving on the arched track 200. The self-locking function can be realized by an electromagnetic braking device in the prior art.

[0055] Furthermore, guiding tracks 202 that match the shape of the arched track 200 are fixedly connected to the middle parts of both side walls of the arched track 200. Positioning rollers 303 that are in contact with the outer walls on the upper and lower sides of the guiding track 202 are rotatably connected in the connecting sliding holes 302. Two sets of positioning rollers 303 are arranged up and down in the connecting sliding holes 302. The guiding tracks 202 on the side walls of the arched track 200 are clamped by the two sets of positioning rollers 303, so as to play a role in limiting and guiding during the movement of the mounting base 301 on the arched track 200, and enhance the stability of the movement of the mounting base 301.

[0056] Embodiment 2: It includes an LED lighting lamp 100, an arched track 200, and a traveling mechanism 300. The LED lighting lamp 100 is an LED light source. The arched track 200 has an upwardly curved arch-shaped structure. The traveling mechanism 300 is movably connected to the outer wall of the arched track 200 and can move along the outer circumference direction of the arched track 200. The positioning rollers 303 cooperate with the arched track 200 to adjust the irradiation angle of the LED lighting lamp 100. It further includes a driving mechanism 400. The driving mechanism 400 is arranged between the traveling mechanism 300 and the LED lighting lamp 100. The driving mechanism 400 is used for adjusting the lighting position of the LED lighting lamp 100.

[0057] Among them, the driving mechanism 400 includes a sliding sleeve 401 and a ejector rod 413. On one side of the sliding sleeve 401 facing the LED lighting lamp 100, there is a sliding cavity 402 recessed inward. A telescopic slider 403 for connecting the LED lighting lamp 100 is slidably connected in the sliding cavity 402. On one side of the sliding sleeve 401 close to the traveling mechanism 300, there is a jacking slot 411. The ejector rod 413 is slidably connected in the jacking slot 411 and can vertically expand and contract along the jacking slot 411. One end of the ejector rod 413 is fixedly connected with an anti-slip rubber 414 and extends into the connecting sliding hole 302. A vertical through groove 404 communicating with the sliding cavity 402 is formed in the side wall of the sliding sleeve 401. A guide block 405 is slidably connected in the vertical through groove 404. A driving rod 406 extending downward is rotatably connected to the side wall of the sliding sleeve 401 and at a position obliquely above the vertical through groove 404. A guiding channel 407 is formed at the end of the driving rod 406 close to the vertical through groove 404. One end of the guide block 405 extends into the guiding channel 407, and the other end of the guide block 405 is fixedly connected to the outer wall of the telescopic slider 403; Further, the driving rod 406 is composed of a straight plate portion 461 with a long strip structure and a sector gear portion 462 with a sector gear structure. The driving rod 406 rotates around the center of the sector gear portion 462. The bottom of the jacking slot 411 is circular and rotatably connected with a disc body 410. A transmission gear 409 coaxial with the disc body 410 is provided on the side of the sliding sleeve 401 close to the driving rod 406. The outer wall of the transmission gear 409 is meshed with the outer wall of the sector gear portion 462. An arc-shaped channel 412 is formed on the end face of the disc body 410. The bottom of the ejector rod 413 is slidably connected to the inner side of the arc-shaped channel 412. A telescopic driving member 408 is hinged between the bottom of the sliding sleeve 401 and the bottom of the driving rod 406;When the LED lighting lamp 100 needs to perform the lighting work, it needs to extend a certain distance outward on the driving mechanism 400 to reach the working position. During this process, a position sensor can be assembled between the LED lighting lamp 100 and the driving mechanism 400 to control the switch of the LED lighting lamp 100, so that the LED lighting lamp 100 can be automatically turned on after reaching the working position. In this process, the telescopic driving member 408 generates an extending action to drive the driving rod 406 to rotate, so that the driving rod 406 provides a downward thrust on the guiding block 405 through the guiding channel 407, and then cooperates with the guiding action of the vertical through groove 404 on the guiding block 405 to realize the driving of the guiding block 405 to lift and lower in the vertical through groove 404. In this way, the LED lighting lamp 100 can be driven by the telescopic slider 403 to move along the direction close to or away from the sliding sleeve 401, realizing the switching of the LED lighting lamp 100 between the working position and the closed position. And because the top of the driving rod 406 has a sector gear part 462, and the rotation position of the driving rod 406 coincides with the circular position of the sector gear part 462, the sector gear part 462 can drive the transmission gear 409 to rotate when the driving rod 406 rotates, driving the disc body 410 coaxially connected with the transmission gear 409 to rotate. The disc body 410 provides the power of vertical telescopic drive for the ejector rod 413 through the arc-shaped channel 412 on its outer wall. When the LED lighting lamp 100 switches the working position, the ejector rod 413 retracts to separate the anti-slip rubber 414 from the outer wall of the arched track 200, releasing the locking of the position between the traveling mechanism 300 and the arched track 200. When the LED lighting lamp 100 retracts to the closed position, the ejector rod 413 extends upward to drive the anti-slip rubber 414 to squeeze the outer wall of the arched track 200, performing secondary locking on the position between the arched track 200 and the traveling mechanism 300, adding an additional insurance function to keep the position of the LED lighting lamp 100 stable with the arched track 200 when it is not working.;

[0058] In addition, a dust-proof net 101 is fixedly connected to the position of the heat dissipation area on the outer wall of the LED lighting lamp 100. The dust-proof net 101 covers the heat dissipation hole area of the LED lighting lamp 100, which can play a dust-proof effect and prevent dust from entering the LED lighting lamp 100 and causing failures. A dust removal mechanism 500 for cleaning the dust on the surface of the dust-proof net 101 is provided on the driving mechanism 400. By using the dust removal mechanism 500 to clean the dust on the surface of the dust-proof net 101, the heat dissipation effect of the LED lighting lamp 100 can be improved; wherein, the dust removal mechanism 500 includes two air nozzles 506, a corrugated airbag 502 and a clamping spring 507. The two air nozzles 506 are symmetrically arranged at one end of the sliding sleeve 401 close to the LED lighting lamp 100. The inner side of the air nozzle 506 is in the shape of an inclined surface that is wider at the top and narrower at the bottom. A frustum-shaped column 102 that is narrower at the top and wider at the bottom is fixedly connected between the telescopic slider 403 and the LED lighting lamp 100. The corrugated airbag 502 is fixedly arranged between the telescopic slider 403 and the sliding cavity 402. The corrugated airbag 502 is used to supply the gas for blowing the dust on the surface of the dust-proof net 101 into the air nozzles 506. The clamping spring 507 is sleeved in the arc-shaped grooves arranged on the outer walls of the two air nozzles 506. One end of the corrugated airbag 502 close to the inner wall of the sliding cavity 402 is fixedly connected with a hollow ventilation seat 501. An intake check valve 504 and an outlet check valve 505 that are communicated with its inner cavity are arranged on the outer wall of the ventilation seat 501. The outlet check valve 505 is communicated with the air nozzle 506 through a hose. An air jet through hole 508 whose two ends are not communicated is opened inside the air nozzle 506. A plurality of air jet ports 509 that are communicated with the air jet through hole 508 are opened at the bottom end of the air nozzle 506. The air jet ports 509 are in the shape of a frustum that is wider at the top and narrower at the bottom. When the LED lighting lamp 100 is switched from the working position to the closed position, the telescopic slider 403 will retract to the inner side of the sliding cavity 402. During this process, the telescopic slider 403 will squeeze the corrugated airbag 502. The gas in the corrugated airbag 502 enters the inner cavity of the ventilation seat 501 and is then transported to the air jet through hole 508 inside the air nozzle 506 through the outlet check valve 505 and the hose, and then is squeezed out from the air jet ports 509 and blows towards the position of the dust-proof net 101 on the LED lighting lamp 100. The dust attached to the surface of the dust-proof net 101 is removed through the action of the air flow. Moreover, by using the structural feature that the air jet ports 509 are wider at the top and narrower at the bottom, the gas blown out can be pressurized, so that the gas can more effectively clean the dust on the surface of the dust-proof net 101; the intake check valve 504 on the ventilation seat 501 can be communicated with the outside of the sliding sleeve 401 through a pipeline. In this way, when the telescopic slider 403 extends out of the sliding sleeve 401, during the reset process of the corrugated airbag 502 through the airbag spring 503, the external air can be inhaled into the corrugated airbag 502;In addition, since the telescopic slider 403 and the LED lighting lamp 100 are connected by the frustum column 102, by utilizing the structural feature of the frustum column 102 with a narrow upper part and a wide lower part and the structural feature of the inner walls of the two air nozzles 506 with a wide upper part and a narrow lower part, and in combination with the automatic clamping function of the clamping spring 507 on the two air nozzles 506, during the process of the LED lighting lamp 100 switching from the working position to the closed position, the frustum column 102 can squeeze the two air nozzles 506 to cause an expansion action in the horizontal direction, so that the air outlets 509 on the air nozzles 506 can translate while blowing air, and cooperate with the arc surface of the dust-proof net 101 on the LED lighting lamp 100, which can increase the cleaning area of the dust-proof net 101, thereby improving the dust removal effect.

[0059] A lighting method for an LED lighting device for visual inspection, using the above-mentioned LED lighting device for visual inspection, includes the following steps:

[0060] When the LED lighting lamp 100 is required to provide lighting, the telescopic driving member 408 acts to elongate and push the driving rod 406 to rotate. During the rotation of the driving rod 406, the guiding channel 407 provides a thrust to the guiding block 405, and in combination with the vertical through groove 404 to limit and guide the guiding block 405, so that the guiding block 405 can drive the telescopic slider 403 to move vertically downward along the vertical through groove 404, so that the LED lighting lamp 100 extends to the working position; during the rotation of the driving rod 406, since the sector gear portion 462 at the top position of the driving rod 406 is in a meshing state with the transmission gear 409, the driving rod 406 can synchronously drive the disc body 410 coaxially connected with the transmission gear 409 to rotate when the driving rod 406 rotates. When the disc body 410 rotates, it drives the ejector rod 413 to retract into the jacking slot 411 through the arc-shaped channel 412, and contacts the extrusion state between the anti-slip rubber 414 and the outer wall of the arched track 200, achieving the unlocking of the position of the mounting seat 301 on the arched track 200;

[0061] The driving motor 306 drives the traveling gear 305 to rotate clockwise or counterclockwise. In combination with the meshing of the traveling gear 305 with the traveling tooth groove 201 on the outer peripheral wall of the arched track 200, when the traveling gear 305 rotates, it can drive the mounting seat 301 to move along the shape track of the arched track 200, adjust the position of the LED lighting lamp 100, and at the same time, in combination with the shape feature of the arched track 200 and the moving feature of the traveling mechanism 300, achieve the adjustment of the irradiation angle of the LED lighting lamp 100 on the object to be detected, and realize the multi-angle irradiation of the object to be detected;

[0062] When the LED lighting lamp 100 retracts to the shutdown position after use, not only can the locking of the position between the traveling mechanism 300 and the arched track 200 be realized, but also during the retraction process of the telescopic slider 403, the corrugated airbag 502 is squeezed, so that the gas enters the jet through-hole 508 of the jet nozzle 506 along the hose through the air vent seat 501 and the one-way exhaust valve 505 on the air vent seat 501, and is discharged downward after being pressurized through the jet port 509 to remove dust from the position of the dust-proof net 101 on the outer wall of the LED lighting lamp 100; at the same time, when the LED lighting lamp 100 moves towards the sliding sleeve 401, the frustum 102 squeezes the jet nozzle 506 by using its own inclined plane feature, and cooperates with the elastic clamping function of the clamping spring 507, so that the jet nozzle 506 makes a horizontal outward translation action at the bottom end of the sliding sleeve 401, thereby expanding the area of gas dust removal on the dust-proof net 101.

[0063] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An LED lighting device for visual inspection, characterized in that, Including: An LED lighting lamp (100), and the LED lighting lamp (100) is an LED light source; An arched track (200), and the arched track (200) has an upwardly curved arch-shaped structure; A traveling mechanism (300), the traveling mechanism (300) is movably connected to the outer wall of the arched track (200) and can move along the outer peripheral direction of the arched track (200), and the positioning roller (303) cooperates with the arched track (200) to adjust the irradiation angle of the LED lighting lamp (100); A driving mechanism (400), the driving mechanism (400) is arranged between the traveling mechanism (300) and the LED lighting lamp (100), and the driving mechanism (400) is used for adjusting the lighting position of the LED lighting lamp (100).

2. The LED lighting device for visual inspection according to claim 1, wherein The traveling mechanism (300) includes: A mounting seat (301), a connecting sliding hole (302) communicating with both sides of the mounting seat (301) is arranged inside the mounting seat (301), and the mounting seat (301) is slidably connected to the outer wall of the LED lighting lamp (100) through the connecting sliding hole (302); A traveling gear (305), a gear groove (304) communicating with the connecting sliding hole (302) is arranged at the top of the mounting seat (301), the traveling gear (305) is rotatably connected inside the gear groove (304), and a traveling tooth groove (201) adapted to the traveling gear (305) is arranged on one side of the LED lighting lamp (100) close to the traveling gear (305); A driving motor (306), the driving motor (306) is fixedly connected to the side wall of the mounting seat (301) and drives the traveling gear (305) to rotate.

3. The LED lighting device for visual inspection according to claim 2, characterized in that, Guide rails (202) matching the shape of the arched track (200) are fixedly connected to the middle parts of both side walls of the arched track (200), and positioning rollers (303) fitting the outer walls of the upper and lower sides of the guide rails (202) are rotatably connected in the connecting sliding holes (302).

4. An LED lighting device for visual inspection according to claim 3, wherein, The driving mechanism (400) includes: A sliding sleeve (401), a sliding cavity (402) recessed inward is arranged on one side of the sliding sleeve (401) facing the LED lighting lamp (100), and a telescopic slider (403) for connecting the LED lighting lamp (100) is slidably connected in the sliding cavity (402); A top rod (413), a jacking slot (411) is arranged on one side of the sliding sleeve (401) close to the traveling mechanism (300), the top rod (413) is slidably connected in the jacking slot (411) and can telescopically extend and retract vertically along the jacking slot (411), and one end of the top rod (413) is fixedly connected with an anti-slip rubber (414) and extends into the connecting sliding hole (302).

5. The LED lighting device for visual inspection according to claim 4, characterized in that, A vertical through groove (404) communicating with the sliding cavity (402) is formed in the side wall of the sliding sleeve (401). A guiding block (405) is slidably connected in the vertical through groove (404). A driving rod (406) extending downward is rotatably connected to the side wall of the sliding sleeve (401) at a position obliquely above the vertical through groove (404). A guiding channel (407) is formed at the end of the driving rod (406) close to the vertical through groove (404). One end of the guiding block (405) extends into the guiding channel (407), and the other end of the guiding block (405) is fixedly connected to the outer wall of the telescopic slider (403).

6. The LED lighting device for visual inspection according to claim 5, characterized in that, The driving rod (406) is composed of a straight plate portion (461) with a long strip structure and a sector gear portion (462) with a sector gear structure. The driving rod (406) rotates around the center of the sector gear portion (462). The bottom of the jacking slot (411) is circular and is rotatably connected with a disc body (410). A transmission gear (409) coaxial with the disc body (410) is arranged on one side of the sliding sleeve (401) close to the driving rod (406). The outer wall of the transmission gear (409) is meshed with the outer wall of the sector gear portion (462). An arc-shaped channel (412) is formed on the end face of the disc body (410). The bottom of the ejector rod (413) is slidably connected to the inner side of the arc-shaped channel (412). A telescopic driving member (408) is hinged between the bottom of the sliding sleeve (401) and the driving rod (406).

7. The LED lighting device for visual inspection according to claim 6, characterized in that A dust-proof net (101) is fixedly connected to the position of the heat dissipation area arranged on the outer wall of the LED lighting lamp (100). A dust removal mechanism (500) for cleaning the dust on the surface of the dust-proof net (101) is arranged on the driving mechanism (400).

8. The LED lighting device for visual inspection according to claim 7, characterized in that, The dust removal mechanism (500) includes: Two jet nozzles (506). The two jet nozzles (506) are symmetrically arranged at one end of the sliding sleeve (401) close to the LED lighting lamp (100). The inner side of the jet nozzle (506) is in the shape of an inclined surface that is wider at the top and narrower at the bottom. A truncated cone column (102) that is narrower at the top and wider at the bottom is fixedly connected between the telescopic slider (403) and the LED lighting lamp (100). A corrugated air bag (502). The corrugated air bag (502) is fixedly arranged between the telescopic slider (403) and the sliding cavity (402). The corrugated air bag (502) is used to supply gas for blowing the dust on the surface of the dust-proof net (101) into the jet nozzle (506). A clamping spring (507). The clamping spring (507) is sleeved in an arc-shaped groove arranged on the outer walls of the two jet nozzles (506).

9. The LED lighting device for visual inspection according to claim 8, wherein One end of the corrugated air bag (502) close to the inner wall of the sliding cavity (402) is fixedly connected to an air vent seat (501) with a hollow structure. An intake one-way valve (504) and an exhaust one-way valve (505) communicating with its inner cavity are arranged on the outer wall of the air vent seat (501). The exhaust one-way valve (505) is connected to the jet nozzle (506) through a hose. The inside of the jet nozzle (506) is provided with a jet through hole (508) that is not connected at both ends. The bottom end of the jet nozzle (506) is provided with a plurality of jet ports (509) that communicate with the jet through hole (508). The jet ports (509) are in the shape of a frustum of a cone with a wider top and a narrower bottom.

10. A lighting method for an LED lighting device for visual inspection, using an LED lighting device for visual inspection as described in claim 9, characterized in that, Including the following steps: When the LED lighting lamp (100) is required to provide illumination, the telescopic driving member (408) acts to elongate and push the driving rod (406) to rotate. During the rotation of the driving rod (406), the guiding channel (407) provides a thrust force to the guiding block (405), and the vertical through groove (404) is used to limit and guide the guiding block (405), so that the guiding block (405) can drive the telescopic slider (403) to move vertically downward along the vertical through groove (404), so that the LED lighting lamp (100) extends to the working position; during the rotation of the driving rod (406), since the sector gear portion (462) at the top position of the driving rod (406) is in meshing with the transmission gear (409), the driving rod (406) can drive the disc body (410) coaxially connected to the transmission gear (409) to rotate synchronously when rotating. When the disc body (410) rotates, the ejector rod (413) is driven to retract into the jacking slot (411) through the arc-shaped channel (412), and the extrusion state between the anti-slip rubber (414) and the outer wall of the arched track (200) is released, so as to unlock the position of the mounting seat (301) on the arched track (200); The driving motor (306) drives the traveling gear (305) to rotate clockwise or counterclockwise. In cooperation with the meshing of the traveling gear (305) and the traveling tooth groove (201) on the outer peripheral wall of the arched track (200), when the traveling gear (305) rotates, it can drive the mounting seat (301) to move along the shape track of the arched track (200) to adjust the position of the LED lighting lamp (100). At the same time, in cooperation with the shape characteristics of the arched track (200) and the moving characteristics of the traveling mechanism (300), the angle of the LED lighting lamp (100) irradiating the object to be detected is adjusted, and multi-angle irradiation of the object to be detected is realized; When the LED lighting lamp (100) retracts to the shutdown position after use, not only can the locking of the position between the traveling mechanism (300) and the arched track (200) be realized, but also during the retraction process of the telescopic slider (403), the corrugated airbag (502) is squeezed, so that the gas enters the jet through-hole (508) of the jet nozzle (506) along the hose through the air vent seat (501) and the one-way exhaust valve (505) on the air vent seat (501), and is discharged downward after being pressurized through the jet port (509) to remove dust from the position of the dust-proof net (101) on the outer wall of the LED lighting lamp (100); at the same time, when the LED lighting lamp (100) moves towards the sliding sleeve (401), the frustum column (102) squeezes the jet nozzle (506) by using its own inclined plane feature, and cooperates with the elastic clamping function of the clamping spring (507), so that the jet nozzle (506) makes a horizontal outward translation movement at the bottom end of the sliding sleeve (401), thereby expanding the area of gas dust removal on the dust-proof net (101).

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