High-speed precision conveyor for industrial vision detection

Abstract

This invention discloses a high-speed precision conveyor for industrial visual inspection, belonging to the field of conveyor technology. The high-speed precision conveyor includes a first frame with an alignment mechanism mounted on it. A double-sided visual inspection mechanism is mounted at one end of the first frame, and a fourth frame is mounted at the end of the double-sided visual inspection mechanism away from the first frame. Third limiting blocks are fixedly connected to both sides of the first frame. A first conveyor belt is mounted on the first frame, and a fifth motor is fixedly connected to one end of the first frame. This invention achieves high-precision positioning during movement through the alignment mechanism and the double-sided visual inspection mechanism. Using a single camera, double-sided inspection is completed through flipping, and positioning, flipping, inspection, and conveying are integrated into a continuous flow without waiting, eliminating cycle time bottlenecks and repetitive errors, and combining high speed, high precision, and low cost.

Description

Technical Field

[0001] This invention belongs to the field of conveyor technology, specifically relating to a high-speed precision conveyor for industrial vision inspection. Background Technology

[0002] In modern precision manufacturing and quality control systems, high-speed precision conveyors for industrial vision inspection are key equipment connecting automated production lines and machine vision systems. Their technological background stems from the rigid demand in industries such as electronics, semiconductors, and pharmaceuticals for online full inspection of micron-level defects. With product miniaturization and increased cycle times, workpieces to be inspected must pass through multiple vision stations with sub-pixel-level positional repeatability in an extremely short time. This requires the conveyor mechanism to suppress mechanical vibrations and resist external disturbances even in continuous motion or high-frequency start-stop states, stably delivering the workpiece's posture and spatial coordinates to the high-speed camera and optical system. This ensures the capture of images without motion blur and with precise focus within millisecond-level exposure windows, enabling accurate rejection and sorting of good products at inspection rates of hundreds or even thousands of pieces per minute. Traditional conveyor methods are no longer adequate for this extreme condition requiring a deep integration of speed and precision.

[0003] In existing visual inspection equipment, conveying and positioning are usually carried out in separate steps. The product is first transported to the inspection position by the conveying mechanism and then fixed separately by the positioning fixture. The equipment occupies a large area and is inefficient. At the same time, if you want to inspect the top and bottom sides of the workpiece, you need a flipping mechanism and multiple industrial cameras, which results in high costs and the need for repeated positioning. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a high-speed precision conveyor for industrial visual inspection.

[0005] The technical solution adopted to solve the above technical problems is: a high-speed precision conveyor for industrial visual inspection, including a first frame, an alignment mechanism on the first frame, a double-sided visual inspection mechanism at one end of the first frame, a fourth frame at the end of the double-sided visual inspection mechanism away from the first frame, third limiting blocks fixedly connected to both sides of the first frame, a first conveyor belt on the first frame, a fifth motor fixedly connected to one end of the first frame, a sixth motor fixedly connected to one end of the fourth frame, a second conveyor belt on the fourth frame, the fifth motor driving the first conveyor belt to rotate, and the sixth motor driving the second conveyor belt to rotate;

[0006] The double-sided visual inspection mechanism includes a third frame, on which a first fixed frame is fixedly connected. A rotating ring is rotatably connected inside the first fixed frame. A second fixed frame is fixedly connected to both sides of the lower end of the rotating ring. A top plate is fixedly connected to both sides of the upper end of the rotating ring. A second sliding rod is slidably connected through the top plate. A third fixed frame is fixedly connected to the lower end of the second sliding rod. A toothed ring is fixedly connected to the end of the top plate and the second fixed frame away from the rotating ring.

[0007] Through the above technical solution, the workpiece is fed into the alignment mechanism by the first conveyor belt for position correction, and then enters the double-sided vision inspection mechanism. It is clamped and transported by the first and second belts that rotate in opposite directions. The same industrial camera takes front-side pictures sequentially during the movement of the workpiece, and then the rotating ring and the workpiece are flipped by the gear ring to take back-side pictures. Finally, it is sent out by the second conveyor belt, thus integrating conveying, precision positioning and double-sided vision inspection into one, realizing online full inspection during high-speed movement, and effectively reducing the equipment footprint and the cost of multiple camera configurations.

[0008] Furthermore, the alignment mechanism includes a second frame, on which a pair of first slide rods are slidably connected. A first limit block is fixedly connected to the upper end of each first slide rod, and a lifting seat is fixedly connected to the lower end of each first slide rod. A hydraulic rod is fixedly connected to the upper end of the lifting seat, and the end of the hydraulic rod away from the lifting seat is fixedly connected to the second frame. Touch buttons are fixedly connected to both sides of the lower end of the lifting seat, and several strip-shaped holes are formed on the lower surface of the lifting seat.

[0009] Through the above technical solution, the hydraulic rod drives the lifting seat to rise and fall along the first slide bar. The touch button cooperates with the third limit block to achieve the lowering limit. The strip hole provides a movement channel for the push rod, enabling the push rod to smoothly approach the workpiece from multiple directions, providing a reliable guide and installation foundation for subsequent centering.

[0010] Furthermore, a first motor is fixedly connected to one side of the lifting seat, a drive shaft is fixedly connected to the output end of the first motor, a second roller is fixedly connected to the end of the drive shaft away from the first motor, a first roller is fixedly connected to the end of the drive shaft away from the second roller, a third roller and a fourth roller are rotatably connected to the side of the lifting seat away from the first motor, a first synchronous belt is provided on the outer sleeve of the third roller and the first roller, and a second synchronous belt is provided on the outer sleeve of the second roller and the fourth roller.

[0011] Through the above technical solution, the first motor drives the first roller and the second roller simultaneously through the transmission shaft, which in turn drives the first synchronous belt and the second synchronous belt to rotate. The second motor drives the third synchronous belt to rotate, so that each slide can move closer or separate synchronously in a preset direction. The power transmission is compact and the double-sided motion is consistent, providing a stable drive for graded alignment.

[0012] Furthermore, a second motor is fixedly connected to the end of the lifting seat away from the first motor, and a sixth roller is rotatably connected to the end of the lifting seat away from the second motor. A fifth roller is fixedly connected to the output end of the second motor. A third synchronous belt is fitted over the fifth and sixth rollers. A sixth slide is fixedly connected to the upper layer of the third synchronous belt near the second motor, and a fifth slide is fixedly connected to the lower layer of the third synchronous belt near the second motor. A seventh slide is fixedly connected to the upper layer of one end of the second synchronous belt, and an eighth slide is fixedly connected to the lower layer of the second synchronous belt away from the seventh slide. A pair of second push rods are fixedly connected to the upper surfaces of the fifth, sixth, seventh, and eighth slides.

[0013] Through the above technical solution, the second and third synchronous belts drive the seventh and eighth slides, and the fifth and sixth slides to move closer to the center, respectively. The second push rod on the outside pushes the workpiece from a larger space to roughly center it, absorbing the initial position deviation of the workpiece in a flexible manner, avoiding jamming or over-pushing caused by rigid positioning. At the same time, the action overlaps with the transmission rhythm, without occupying additional positioning time.

[0014] Furthermore, a fourth slide is fixedly connected to the upper layer of the third synchronous belt near the first motor, a third slide is fixedly connected to the lower layer of the third synchronous belt near the first motor, a first slide is fixedly connected to the upper layer of one end of the first synchronous belt, and a second slide is fixedly connected to the upper layer of the end of the first synchronous belt away from the first slide. A pair of first push rods are fixedly connected to the upper surface of the first, second, third, and fourth slides. Several slide rails are fixedly connected inside the lifting seat. The lower surfaces of the first, second, third, fourth, fifth, sixth, seventh, and eighth slides slide in mutual sliding cooperation with the slide rails. The first and second push rods both pass through the sliding connection strip hole.

[0015] Through the above technical solution, the first synchronous belt and the third synchronous belt respectively drive the first slide and the second slide, and the third slide and the fourth slide to move closer to the center. The first push rod located on the inner side performs secondary precision fitting of the workpiece, transforming the traditional one-time rigid positioning into graded progressive centering, which significantly improves the final positioning accuracy and anti-disturbance capability, and ensures that the workpiece enters the subsequent double-sided visual inspection in the correct posture.

[0016] Furthermore, a third motor is fixedly connected to the second fixed frame, and a first gear is fixedly connected to the output end of the third motor. A first connecting rod is rotatably connected to the output end of the third motor. A seventh roller is rotatably connected to both ends of the second fixed frame, and a second gear is fixedly connected to one end of the seventh roller.

[0017] Through the above technical solution, the third motor drives the first gear, which in turn drives the second gear to rotate the seventh roller and the first belt. On the other hand, it provides floating support for the subsequent gear set through the first connecting rod, so that the upper and lower clamping and conveying mechanisms can be driven by a single motor, avoiding the delay and vibration risks caused by the coordination of multiple motors.

[0018] Furthermore, the end of the first connecting rod away from the third motor is rotatably connected to a first fixed shaft, a third gear is fixedly connected to the first fixed shaft, a second connecting rod is rotatably connected through the first fixed shaft, the end of the second connecting rod away from the first fixed shaft is rotatably connected through the second fixed shaft, a fourth gear is fixedly connected to the second fixed shaft, the first gear and the second gear mesh with each other, the first gear and the third gear mesh with each other, the third gear and the fourth gear mesh with each other, an eighth roller is rotatably connected to both ends of the third fixed frame, the eighth roller is fixedly connected to the fourth gear, a second belt is sleeved on the eighth roller, and a first belt is sleeved on the seventh roller.

[0019] Through the above technical solution, the first gear drives the second and third gears simultaneously, and the third gear drives the fourth gear. The gear cascade enables the first belt and the second belt to obtain driving forces of equal magnitude and opposite direction, ensuring absolute synchronization of clamping and conveying actions. At the same time, the third gear can float up and down as a whole under the limit of the first and second connecting rods, so that the second belt can automatically adjust its height according to the actual thickness of the workpiece and apply elastic clamping force with the help of springs, adapting to the smooth conveying of workpieces of different thicknesses.

[0020] Furthermore, the second slide rod is fitted with a spring, and a second limiting block is fixedly connected to the upper end of the second slide rod. An industrial camera is fixedly connected to the upper end of the third frame, and a lens and a fill light are fixedly connected to the lower end of the industrial camera. A fourth fixing frame is fixedly connected to one side of the third frame, and a fourth motor is fixedly connected to the fourth fixing frame. A fifth gear is fixedly connected to the output end of the fourth motor. The fifth gear and the gear ring mesh with each other. A laser generator is fixedly connected to the inner side of the upper end of the gear ring, and a laser receiver is fixedly connected to the inner side of the lower end of the gear ring.

[0021] Through the above technical solution, the spring pushes the third fixed frame to make the second belt elastically press the workpiece. The workpiece is clamped and moved to the laser generator to trigger the positioning signal. The industrial camera, together with the supplementary light, takes a front image. Then, the fourth motor drives the gear ring through the fifth gear to drive the rotating ring and the workpiece to flip in the air. The same industrial camera directly takes a back image. Only a single camera can complete double-sided visual inspection at high speed, avoiding repeated positioning errors and greatly reducing hardware costs and floor space.

[0022] The beneficial effects of the present invention are as follows: (1) The present invention uses the fifth to eighth slides on the outer side to drive the push rod to push the workpiece roughly into the center from a larger space, and then the first to fourth slides on the inner side perform a second precise fit, transforming the traditional one-time rigid positioning into flexible gradient centering. This avoids jamming or over-pushing caused by excessive initial position deviation of the workpiece, and also absorbs position dispersion in stages. During the continuous movement of the conveyor belt, the workpiece can be accurately positioned, significantly improving the positioning success rate and anti-disturbance capability. At the same time, the positioning action overlaps with the conveying cycle, eliminating the time occupied by independent positioning, and adapting to high-speed online detection; (2) The present invention uses a pair of counter-rotating belts to push the workpiece... The workpiece is flexibly clamped and transported. In the clamping and moving state, the same industrial camera takes pictures of the front side in sequence. Then, the workpiece is rotated in the air by the gear ring to directly take pictures of the back side. Only one camera is needed to obtain complete images of the top and bottom sides, eliminating the need for multiple camera configurations and secondary clamping mechanisms required by traditional solutions, greatly reducing hardware costs and floor space. At the same time, the workpiece is rotated in the clamping state, avoiding repeated positioning errors after leaving the conveying system, ensuring the spatial correspondence accuracy of the double-sided images, and realizing seamless double-sided inspection during high-speed travel; (3) In this invention, the first gear is driven by the third motor, the first gear drives the second gear and the third gear at the same time, and the third gear drives the fourth gear. The meshing and cascading of these four gears allows the first belt and the second belt above to obtain equal and opposite driving forces with only one motor, ensuring absolute synchronization of clamping and conveying actions, avoiding the delay and jitter risks caused by multi-motor coordinated control. At the same time, the third gear can move up and down as a whole under the limit of the first and second connecting rods, so that the second belt can automatically adjust its height and apply elastic clamping force according to the actual thickness of the workpiece, effectively solving the problem that rigid clamping is difficult to adapt to workpieces of different thicknesses. Attached Figure Description

[0023] Figure 1 This is a first-view structural diagram of the present invention;

[0024] Figure 2 This is a second-view structural diagram of the present invention;

[0025] Figure 3 This is a structural diagram of the alignment mechanism of the present invention;

[0026] Figure 4 This is a diagram of the internal structure of the lifting seat of the present invention;

[0027] Figure 5 This is an exploded view of the lifting seat of the present invention from a first perspective;

[0028] Figure 6 This is an exploded view of the lifting seat of the present invention from a second perspective;

[0029] Figure 7This is a structural diagram of the double-sided visual inspection mechanism of the present invention;

[0030] Figure 8 yes Figure 7 Enlarged view of point A;

[0031] Figure 9 This is a structural diagram of the rotating ring of the present invention;

[0032] Figure 10 This is an exploded view of the double-sided visual inspection mechanism of the present invention.

[0033] Reference numerals: 1. First frame; 2. Alignment mechanism; 21. Second frame; 22. First slide bar; 23. Hydraulic rod; 24. First limit block; 25. Lifting seat; 26. Touch button; 27. Strip hole; 28. First motor; 29. ​​Drive shaft; 210. First roller; 211. Second roller; 212. Third roller; 213. First synchronous belt; 214. Fourth roller; 215. Second synchronous belt; 216. Second... 217. Motor; 218. Fifth roller; 219. Sixth roller; 210. Third synchronous belt; 221. Slide rail; 222. First slide table; 223. Second slide table; 224. Third slide table; 225. First push rod; 226. Fifth slide table; 227. Sixth slide table; 228. Seventh slide table; 229. Eighth slide table; 230. Second push rod; 3. Double-sided vision inspection mechanism; 31. Third frame; 32. 33. Fixed frame; 34. Industrial camera; 35. Lens; 36. Fill light; 37. Rotating ring; 38. Second fixed frame; 39. Top plate; 30. Gear ring; 310. Laser generator; 311. Laser receiver; 312. Third motor; 313. First gear; 314. Second gear; 315. Seventh roller; 316. First connecting rod; 317. Second connecting rod; 318. Third gear; 319. First fixed shaft; 320. Fourth gear; 321, Second fixed shaft; 322, Eighth roller; 323, Second slide bar; 324, Second limit block; 325, Spring; 326, Third fixed frame; 327, First belt; 328, Second belt; 329, Fourth fixed frame; 330, Fourth motor; 331, Fifth gear; 4, Fourth frame; 5, Fifth motor; 6, First conveyor belt; 7, Sixth motor; 8, Second conveyor belt; 9, Third limit block. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] like Figures 1-10As shown, this embodiment of a high-speed precision conveyor for industrial visual inspection includes a first frame 1, a fourth frame 4 disposed at one end of a double-sided visual inspection mechanism 3 away from the first frame 1, third limiting blocks 9 fixedly connected to both sides of the first frame 1, a first conveyor belt 6 disposed on the first frame 1, a fifth motor 5 fixedly connected to one end of the first frame 1, a sixth motor 7 fixedly connected to one end of the fourth frame 4, a second conveyor belt 8 disposed on the fourth frame 4, the fifth motor 5 drives the first conveyor belt 6 to rotate, the sixth motor 7 drives the second conveyor belt 8 to rotate, the fifth motor 5 drives the first conveyor belt 6 to rotate, and the workpiece is placed on the first conveyor belt 6. The workpiece moves to below the alignment mechanism 2 under the drive of the first conveyor belt 6.

[0036] like Figures 3-6 As shown, an alignment mechanism 2 is provided on the first frame 1. The alignment mechanism 2 includes a second frame 21. A pair of first slide rods 22 are slidably connected through the second frame 21. A first limit block 24 is fixedly connected to the upper end of the first slide rod 22. A lifting seat 25 is fixedly connected to the lower end of the first slide rod 22. A hydraulic rod 23 is fixedly connected to the upper end of the lifting seat 25. The end of the hydraulic rod 23 away from the lifting seat 25 is fixedly connected to the second frame 21. Touch buttons 26 are fixedly connected to both sides of the lower end of the lifting seat 25. A groove is formed on the lower surface of the lifting seat 25. Several slotted holes 27 and hydraulic rods 23 push the lifting seat 25 down along the first slide bar 22 until the touch button 26 contacts the third limit block 9. At this time, the first motor 28 and the second motor 216 start. The first motor 28 drives the first roller 210 and the second roller 211 to rotate through the transmission shaft 29. The second motor 216 drives the fifth roller 217 to rotate. The first roller 210 drives the first synchronous belt 213 to rotate. The second roller 211 drives the second synchronous belt 215 to rotate. The fifth roller 217 drives the third synchronous belt 219 to rotate.

[0037] A first motor 28 is fixedly connected to one side of the lifting seat 25. A drive shaft 29 is fixedly connected to the output end of the first motor 28. A second roller 211 is fixedly connected to the end of the drive shaft 29 away from the first motor 28. A first roller 210 is fixedly connected to the end of the drive shaft 29 away from the second roller 211. A third roller 212 and a fourth roller 214 are rotatably connected to the side of the lifting seat 25 away from the first motor 28. A first synchronous belt 213 is provided on the outer sleeve of the third roller 212 and the first roller 210. A second synchronous belt 215 is provided on the outer sleeve of the second roller 211 and the fourth roller 214.

[0038] A second motor 216 is fixedly connected to the end of the lifting seat 25 away from the first motor 28. A sixth roller 218 is rotatably connected to the end of the lifting seat 25 away from the second motor 216. A fifth roller 217 is fixedly connected to the output end of the second motor 216. A third synchronous belt 219 is fitted over the fifth roller 217 and the sixth roller 218. A sixth slide 227 is fixedly connected to the upper layer of the third synchronous belt 219 near the second motor 216. A fifth slide 226 is fixedly connected to the lower layer of the third synchronous belt 219 near the second motor 216. A seventh slide 228 is fixedly connected to the upper layer of one end of the second synchronous belt 215. An eighth slide 228 is fixedly connected to the lower layer of the second synchronous belt 215 away from the seventh slide 228. 9. A pair of second push rods 230 are fixedly connected to the upper surfaces of the fifth slide 226, the sixth slide 227, the seventh slide 228, and the eighth slide 229. The second synchronous belt 215 drives the seventh slide 228 and the eighth slide 229 to move towards the middle, and the third synchronous belt 219 drives the fifth slide 226 and the sixth slide 227 to move towards the middle. The second push rods 230 on the fifth slide 226, the sixth slide 227, the seventh slide 228, and the eighth slide 229 move along the strip hole 27 to push the workpiece inward. Since the initial positioning of the fifth slide 226, the sixth slide 227, the seventh slide 228, and the eighth slide 229 is close to the outside, there is a large space left in the middle when they move together, which is suitable for preliminary positioning.

[0039] A fourth slide 224 is fixedly connected to the upper layer of the third synchronous belt 219 near the first motor 28; a third slide 223 is fixedly connected to the lower layer of the third synchronous belt 219 near the first motor 28; a first slide 221 is fixedly connected to the upper layer of one end of the first synchronous belt 213; a second slide 222 is fixedly connected to the upper layer of the end of the first synchronous belt 213 away from the first slide 221; a pair of first push rods 225 are fixedly connected to the upper surfaces of the first slide 221, second slide 222, third slide 223, and fourth slide 224; several slide rails 220 are fixedly connected inside the lifting seat 25; and the first slide 221, second slide 222, third slide 223, fourth slide 224, and fifth slide rails are also fixedly connected to the upper surfaces of these slide rails. The lower surfaces of slides 226, 227, 228, and 229 all slide in slidable engagement with slide rail 220. The first push rod 225 and the second push rod 230 both pass through the sliding connection strip hole 27. The first synchronous belt 213 drives the first slide 221 and the second slide 222 to move closer to the center. The third synchronous belt 219 drives the third slide 223 and the fourth slide 224 to move closer to the center. The first push rod 225 on the first slide 221, the second slide 222, the third slide 223, and the fourth slide 224 pushes the workpiece inward for precise positioning. The workpiece is initially positioned and then precisely positioned under the drive of the first conveyor belt 6, and finally enters the double-sided vision inspection mechanism 3.

[0040] like Figures 7-10 As shown, a double-sided visual inspection mechanism 3 is provided at one end of the first frame 1. The double-sided visual inspection mechanism 3 includes a third frame 31. A first fixed frame 32 is fixedly connected to the third frame 31. A rotating ring 36 is rotatably connected inside the first fixed frame 32. A second fixed frame 37 is fixedly connected to both sides of the lower end of the rotating ring 36. A top plate 38 is fixedly connected to both sides of the upper end of the rotating ring 36. A second sliding rod 323 is slidably connected through the top plate 38. A third fixed frame 326 is fixedly connected to the lower end of the second sliding rod 323. A gear ring 39 is fixedly connected to the top plate 38 and the end of the second fixed frame 37 away from the rotating ring 36. When the workpiece pushes the third fixed frame 326, the spring 325 pushes the third fixed frame 326. Motor 6 drives the eighth roller 322, which in turn drives the second belt 328 in conjunction with the first belt 327 to clamp the workpiece. Simultaneously, the third motor 312 drives the first gear 313 to rotate, which in turn drives the second gear 314 to rotate, which in turn drives the third gear 318 to rotate, which in turn drives the fourth gear 320 to rotate. The second gear 314 drives the seventh roller 315 to rotate, which in turn drives the eighth roller 322 to rotate. The eighth roller 322 drives the second belt 328 to rotate, and the seventh roller 315 drives the first belt 327 to rotate. The first belt 327 and the second belt 328 rotate in opposite directions, thus allowing the workpiece to move while being clamped.

[0041] A third motor 312 is fixedly connected to the second fixed frame 37. A first gear 313 is fixedly connected to the output end of the third motor 312. A first connecting rod 316 is rotatably connected to the output end of the third motor 312. A seventh roller 315 is rotatably connected to both ends of the second fixed frame 37. A second gear 314 is fixedly connected to one end of the seventh roller 315.

[0042] The end of the first connecting rod 316 furthest from the third motor 312 is rotatably connected to a first fixed shaft 319. A third gear 318 is fixedly connected to the first fixed shaft 319. A second connecting rod 317 is rotatably connected through the first fixed shaft 319. The end of the second connecting rod 317 furthest from the first fixed shaft 319 is rotatably connected through a second fixed shaft 321. A fourth gear 320 is fixedly connected to the second fixed shaft 321. The first gear 313 and the second gear 314 mesh with each other. The first gear 313 and the third gear 318 mesh with each other. The third gear 318 and the fourth gear 320 mesh with each other. An eighth roller 322 is rotatably connected to both ends of the third fixed frame 326. The eighth roller 322 is fixedly connected to the fourth gear 320. The eighth roller 322 is fitted with an outer sleeve. A second belt 328 is provided, and a first belt 327 is provided over the seventh roller 315. Due to the limiting of the first connecting rod 316 and the second connecting rod 317, the fourth gear 320 can move up and down while being driven by the third motor 312. Then, the fourth motor 330 is started, which drives the fifth gear 331 to rotate. The fifth gear 331 drives the gear ring 39 to rotate, and the gear ring 39 drives the workpiece to flip, so that the back of the workpiece is aligned with the industrial camera 33. The industrial camera 33 takes pictures and inspects the back of the workpiece. Then, the fourth motor 330 drives the gear ring 39 to reset, and the third motor 312 is started. The workpiece continues to move onto the second conveyor belt 8 through the first belt 327 and the second belt 328. Subsequently, the sixth motor 7 drives the second conveyor belt 8 to move and send the workpiece out.

[0043] The second slide bar 323 is fitted with a spring 325. The upper end of the second slide bar 323 is fixedly connected to a second limit block 324. The upper end of the third frame 31 is fixedly connected to an industrial camera 33. The lower end of the industrial camera 33 is fixedly connected to a lens 34 and a fill light 35. The side of the third frame 31 is fixedly connected to a fourth mounting bracket 329. The fourth mounting bracket 329 is fixedly connected to a fourth motor 330. The output end of the fourth motor 330 is fixedly connected to a fifth gear 331. The fifth gear 331 and the gear ring 39 mesh with each other. The inner side of the upper end of the gear ring 39 is fixedly connected to a laser generator 310. The inner side of the lower end of the gear ring 39 is fixedly connected to a laser receiver 311. When the workpiece moves to the laser generator 310, the laser receiver 311 does not receive a laser signal, thereby stopping the third motor 312 and starting the industrial camera 33 and the fill light 35 to capture the surface condition of the workpiece through the lens 34.

[0044] The working principle of this embodiment is as follows: the fifth motor 5 drives the first conveyor belt 6 to rotate, and the workpiece is placed on the first conveyor belt 6. Under the drive of the first conveyor belt 6, the workpiece moves to the bottom of the alignment mechanism 2. At this time, the hydraulic rod 23 pushes the lifting seat 25 down along the first slide bar 22 until the touch button 26 contacts the third limit block 9. At this time, the first motor 28 and the second motor 216 start. The first motor 28 drives the first roller 210 and the second roller 211 to rotate through the transmission shaft 29. The second motor 216 drives the fifth roller 217 to rotate. The first roller 210 drives the first synchronous belt 213 to rotate. The second roller 211 drives the second synchronous belt 215 to rotate. The fifth roller 217 drives the third synchronous belt 219 to rotate.

[0045] At this time, the second synchronous belt 215 drives the seventh slide 228 and the eighth slide 229 to move closer to the center, and the third synchronous belt 219 drives the fifth slide 226 and the sixth slide 227 to move closer to the center. Meanwhile, the second push rods 230 on the fifth slide 226, the sixth slide 227, the seventh slide 228 and the eighth slide 229 move along the strip hole 27, pushing the workpiece inward. Since the fifth slide 226, the sixth slide 227, the seventh slide 228 and the eighth slide 229 are initially positioned close to the outside, there is a large space left in the middle when they move closer, which is suitable for preliminary positioning.

[0046] Then, the first synchronous belt 213 drives the first slide 221 and the second slide 222 to move closer to the center, and the third synchronous belt 219 drives the third slide 223 and the fourth slide 224 to move closer to the center. The first push rod 225 on the first slide 221, the second slide 222, the third slide 223 and the fourth slide 224 pushes the workpiece inward for precise positioning. The workpiece is initially positioned and then precisely positioned under the drive of the first conveyor belt 6, and finally enters the double-sided vision inspection mechanism 3.

[0047] When the workpiece enters the double-sided vision inspection mechanism 3, the workpiece pushes open the third fixed frame 326, causing the spring 325 to push the third fixed frame 326. The third fixed frame 326 drives the eighth roller 322, which in turn drives the second belt 328 to cooperate with the first belt 327 to clamp the workpiece. At the same time, the third motor 312 drives the first gear 313 to rotate, which in turn drives the second gear 314 to rotate, which in turn drives the third gear 318 to rotate, which in turn drives the fourth gear 320 to rotate, which in turn drives the seventh roller 315 to rotate, which in turn drives the eighth roller 322 to rotate, which in turn drives the second belt 328 to rotate, and the seventh roller 315 drives the first belt 327 to rotate. The first belt 327 and the second belt 328 rotate in opposite directions, thus allowing the workpiece to move while being clamped.

[0048] Due to the limiting effect of the first link 316 and the second link 317, the fourth gear 320 can move up and down while being driven by the third motor 312. When the workpiece moves to the laser generator 310, the laser receiver 311 does not receive the laser signal, thus stopping the third motor 312, activating the industrial camera 33 and the fill light 35, and capturing the surface condition of the workpiece through the lens 34. Then, the fourth motor 330 is activated, driving the fifth gear 331 to rotate. The fifth gear 331 drives the gear ring 39 to rotate, and the gear ring 39 drives the workpiece to flip, aligning the back of the workpiece with the industrial camera 33. The industrial camera 33 captures and inspects the back of the workpiece. Afterward, the fourth motor 330 drives the gear ring 39 to reset, and the third motor 312 is activated, driving the workpiece to continue moving onto the second conveyor belt 8 via the first belt 327 and the second belt 328. Subsequently, the sixth motor 7 drives the second conveyor belt 8 to move, sending the workpiece out.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An industrial vision inspection high speed precision conveyor comprising a first frame (1), characterized in that: An alignment mechanism (2) is provided on the first frame (1). A double-sided visual inspection mechanism (3) is provided at one end of the first frame (1). A fourth frame (4) is provided at the end of the double-sided visual inspection mechanism (3) away from the first frame (1). A third limiting block (9) is fixedly connected to both sides of the first frame (1). A first conveyor belt (6) is provided on the first frame (1). A fifth motor (5) is fixedly connected to one end of the first frame (1). A sixth motor (7) is fixedly connected to one end of the fourth frame (4). A second conveyor belt (8) is provided on the fourth frame (4). The fifth motor (5) drives the first conveyor belt (6) to rotate. The sixth motor (7) drives the second conveyor belt (8) to rotate. The double-sided visual inspection mechanism (3) includes a third frame (31), on which a first fixed frame (32) is fixedly connected. A rotating ring (36) is rotatably connected inside the first fixed frame (32). A second fixed frame (37) is fixedly connected to both sides of the lower end of the rotating ring (36). A top plate (38) is fixedly connected to both sides of the upper end of the rotating ring (36). A second slide rod (323) is slidably connected through the top plate (38). A third fixed frame (326) is fixedly connected to the lower end of the second slide rod (323). A toothed ring (39) is fixedly connected to the end of the top plate (38) and the second fixed frame (37) away from the rotating ring (36).

2. The high-speed precision conveyor for industrial vision inspection according to claim 1, characterized in that, The alignment mechanism (2) includes a second frame (21), on which a pair of first slide rods (22) are slidably connected. A first limit block (24) is fixedly connected to the upper end of the first slide rod (22), and a lifting seat (25) is fixedly connected to the lower end of the first slide rod (22). A hydraulic rod (23) is fixedly connected to the upper end of the lifting seat (25). The end of the hydraulic rod (23) away from the lifting seat (25) is fixedly connected to the second frame (21). Touch buttons (26) are fixedly connected to both sides of the lower end of the lifting seat (25). Several strip holes (27) are opened on the lower surface of the lifting seat (25).

3. The high speed precision conveyor for industrial vision inspection according to claim 2, characterized in that, A first motor (28) is fixedly connected to one side of the lifting seat (25). A transmission shaft (29) is fixedly connected to the output end of the first motor (28). A second roller (211) is fixedly connected to the end of the transmission shaft (29) away from the first motor (28). A first roller (210) is fixedly connected to the end of the transmission shaft (29) away from the second roller (211). A third roller (212) and a fourth roller (214) are rotatably connected to the side of the lifting seat (25) away from the first motor (28). A first synchronous belt (213) is provided on the outer sleeve of the third roller (212) and the first roller (210). A second synchronous belt (215) is provided on the outer sleeve of the second roller (211) and the fourth roller (214).

4. The high-speed precision conveyor for industrial vision inspection according to claim 3, characterized in that, The lifting seat (25) is fixedly connected to a second motor (216) at the end away from the first motor (28). A sixth roller (218) is rotatably connected to the end of the lifting seat (25) away from the second motor (216). A fifth roller (217) is fixedly connected to the output end of the second motor (216). A third synchronous belt (219) is provided over the fifth roller (217) and the sixth roller (218). A sixth slide (227) is fixedly connected to the upper layer of the third synchronous belt (219) near the second motor (216). The third synchronous belt (219) is fixedly connected to a fifth slide (226) at the lower end near the second motor (216), the second synchronous belt (215) is fixedly connected to a seventh slide (228) at the upper end, and the second synchronous belt (215) is fixedly connected to an eighth slide (229) at the lower end away from the seventh slide (228). The upper surfaces of the fifth slide (226), the sixth slide (227), the seventh slide (228) and the eighth slide (229) are all fixedly connected to a pair of second push rods (230).

5. The high-speed precision conveyor for industrial vision inspection according to claim 4, characterized in that, The third synchronous belt (219) is fixedly connected to a fourth slide (224) at the upper end near the first motor (28), and a third slide (223) is fixedly connected to the lower end of the third synchronous belt (219) near the first motor (28). The first synchronous belt (213) is fixedly connected to a first slide (221) at the upper end, and a second slide (222) is fixedly connected to the upper end of the first synchronous belt (213) away from the first slide (221). The first slide (221), the second slide (222), the third slide (223), and... A pair of first push rods (225) are fixedly connected to the upper surface of the fourth slide (224). Several slide rails (220) are fixedly connected inside the lifting seat (25). The lower surfaces of the first slide (221), second slide (222), third slide (223), fourth slide (224), fifth slide (226), sixth slide (227), seventh slide (228) and eighth slide (229) are all in sliding cooperation with the slide rails (220). The first push rod (225) and the second push rod (230) both pass through the sliding connection strip hole (27).

6. The high-speed precision conveyor for industrial vision inspection according to claim 1, characterized in that, A third motor (312) is fixedly connected to the second fixed frame (37). A first gear (313) is fixedly connected to the output end of the third motor (312). A first connecting rod (316) is rotatably connected to the output end of the third motor (312). A seventh roller (315) is rotatably connected to both ends of the second fixed frame (37). A second gear (314) is fixedly connected to one end of the seventh roller (315).

7. A high-speed precision conveyor for industrial vision inspection according to claim 6, characterized in that, The first connecting rod (316) is rotatably connected to a first fixed shaft (319) at the end away from the third motor (312). A third gear (318) is fixedly connected to the first fixed shaft (319). A second connecting rod (317) is rotatably connected through the first fixed shaft (319). The second connecting rod (317) is rotatably connected to a second fixed shaft (321) at the end away from the first fixed shaft (319). A fourth gear (320) is fixedly connected to the second fixed shaft (321). The first gear (318) is rotatably connected to the third motor (312). 3) The second gear (314) meshes with each other, the first gear (313) and the third gear (318) mesh with each other, the third gear (318) and the fourth gear (320) mesh with each other, the third fixed frame (326) is rotatably connected to the two ends of the eighth roller (322), the eighth roller (322) is fixedly connected to the fourth gear (320), the eighth roller (322) is covered with a second belt (328), and the seventh roller (315) is covered with a first belt (327).

8. A high-speed precision conveyor for industrial vision inspection according to claim 7, characterized in that, The second slide bar (323) is fitted with a spring (325). The upper end of the second slide bar (323) is fixedly connected to a second limiting block (324). The upper end of the third frame (31) is fixedly connected to an industrial camera (33). The lower end of the industrial camera (33) is fixedly connected to a lens (34) and a fill light (35). The side of the third frame (31) is fixedly connected to a fourth fixing frame (329). The fourth fixing frame (329) is fixedly connected to a fourth motor (330). The output end of the fourth motor (330) is fixedly connected to a fifth gear (331). The fifth gear (331) and the gear ring (39) mesh with each other. The inner side of the upper end of the gear ring (39) is fixedly connected to a laser generator (310). The inner side of the lower end of the gear ring (39) is fixedly connected to a laser receiver (311).

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