Multi-angle visual inspection device

Abstract

The application discloses a multi-angle visual detection equipment. The technical scheme of the application is that a rack is provided with a material disc feeding and discharging mechanism, a material disc moving mechanism, a three-axis material moving mechanism, a material detection mechanism and a material sorting mechanism. The material detection mechanism can detect the material in four directions. First, the three-axis material moving mechanism uses a negative pressure material moving suction disc to grasp the material to a bottom surface visual detection unit for detection. If the bottom surface detection is unqualified, the material sorting mechanism uses a detection moving negative pressure suction disc to suck and transfer the material to an NG product discharging belt line for release. If the bottom surface detection is qualified, a detection feeding linear module drives a carrier and the material to move towards a detection fixing frame, and a first upper surface CCD, a left surface CCD and a right surface CCD respectively detect the top surface, the left surface and the right surface of the material. The scheme can realize automatic detection, multi-surface detection, automatic feeding and discharging and tray automatic moving, and has high detection efficiency and accuracy.

Description

Technical Field

[0001] This invention relates to the field of inspection equipment technology, and in particular to a multi-angle visual inspection device. Background Technology

[0002] In existing technologies, the visual inspection of terminal modules typically relies on manual inspection. This method is prone to errors, has low efficiency, and is costly in terms of labor. Especially when multi-faceted inspection of the terminal module is required, missed or incorrect inspections are more likely. Therefore, designing a device capable of fully automated visual inspection and multi-faceted inspection is the problem that the inventors aim to solve. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the main purpose of this invention is to provide a high-efficiency and high-precision visual inspection device that can realize full automation of the inspection process, multi-face inspection, automatic loading and unloading, and automatic pallet transfer.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle visual inspection device, comprising a frame, wherein the frame is equipped with...

[0005] The material tray loading and unloading mechanism includes a loading unit and an unloading unit with the same structure arranged side by side. Both the loading unit and the unloading unit include a roller conveyor line and a material tray lifting module located at the end of the roller conveyor line. Several blocking cylinders are arranged on the roller conveyor line, and each blocking cylinder is connected to a stop block that can block the material tray. The material tray lifting module includes a lifting frame, and a lifting linear module is arranged on the lifting frame. The lifting linear module is connected to a support lifting plate that can support the material tray.

[0006] The tray transfer mechanism includes a pair of slide rails mounted on a frame. A tray fixing frame is connected to the pair of slide rails via a slider. The tray fixing frame has a tray loading hole and a tray unloading hole. The tray loading hole is located directly above the tray lifting module of the loading unit, and the tray unloading hole is located directly above the tray lifting module of the unloading unit. A fixing cylinder is installed on each of the four sides of the tray loading hole and the tray unloading hole on the tray fixing frame. The fixing cylinder is connected to a stop plate that can abut against the tray. A tray transfer linear module is mounted on the frame, which can move the fixing frame along the pair of slide rails. The tray transfer linear module can move the tray loading hole to directly above the tray lifting module of the unloading unit. Multiple photoelectric sensors capable of detecting the tray are mounted on the tray fixing frame.

[0007] The three-axis material transfer mechanism includes two parallel Y-axis linear support frames set at both ends of the frame. Each Y-axis linear support frame is fixedly equipped with a Y-axis linear module. The two Y-axis linear modules are connected to an X-axis linear support plate. An X-axis linear module is fixedly equipped on the X-axis linear support plate. A Z-axis support frame is fixedly connected to the X-axis linear module. A Z-axis lifting linear module is set on the Z-axis support frame. A motor support frame is fixedly connected to the Z-axis lifting linear module. A servo rotary motor is fixedly connected to the motor support frame. The output shaft of the servo rotary motor is connected to a fixed frame. Several negative pressure material transfer suction cups capable of picking up and releasing materials are fixedly set on the fixed frame. A material positioning CCD is set on the fixed frame.

[0008] The material inspection mechanism includes a bottom-side vision inspection unit and three-sided vision inspection units (left, right, and upper) mounted on a frame. The bottom-side vision inspection unit includes a bottom-side CCD with the lens facing upwards, a lower base for fixing the bottom-side CCD, and two profile protective rails fixed on the lower base. The three-sided vision inspection units include a detection feeding linear module and a three-sided CCD fixing assembly. The detection feeding linear module is equipped with a carrier for fixing materials. The three-sided CCD fixing assembly includes a detection fixing frame. The detection feeding linear module passes through the detection fixing frame. A first upper CCD is mounted on the top of the detection fixing frame. A left support and a right support are respectively mounted on both sides of the detection fixing frame. A left CCD and a right CCD are respectively fixedly connected to the left support and the right support.

[0009] The material sorting mechanism includes a rotary transfer unit disposed on one side of the detection and feeding linear module and an NG product discharge conveyor disposed on one side of the rotary transfer unit. The rotary transfer unit includes a rotary cylinder fixedly mounted on the frame. A slide lifting cylinder is fixedly connected to the rotary cylinder. A sorting bracket is fixedly connected to the slide lifting cylinder. A detection and transfer negative pressure suction cup capable of adsorbing and releasing materials on the carrier is fixedly mounted on the sorting bracket. The rotary cylinder can drive the negative pressure suction cup on the slide lifting cylinder to rotate from the carrier to the NG product discharge conveyor.

[0010] Preferably, a baffle is fixedly installed at the entrance of the roller conveyor line.

[0011] Preferably, the abutment plate is L-shaped to support the tray.

[0012] Preferably, a light curtain sensor capable of detecting the carrier and materials is provided at the entrance of the detection fixture.

[0013] Preferably, the three-sided CCD fixing assembly further includes an auxiliary bracket disposed on one side of the detection and feeding linear module and a second upper CCD disposed on the auxiliary bracket.

[0014] This invention has the following advantages over existing technologies: the material inspection mechanism can perform visual inspection of materials in four directions. First, the negative pressure material transfer suction cup of the three-axis material transfer mechanism grabs the material to the bottom visual inspection unit. The bottom CCD performs visual inspection of the bottom surface of the material through two profile protective rails. Then, the negative pressure material transfer suction cup places the material onto the carrier. If the bottom surface inspection fails, the inspection transfer negative pressure suction cup of the material sorting mechanism picks up the material and transfers it to the NG product discharge conveyor for release. If the bottom surface inspection passes, the inspection feeder... The linear module moves the carrier and material towards the inspection fixture. Once in position, the top, left, and right CCDs visually inspect the top, left, and right sides of the material, respectively. The linear module then moves the carrier and material back. If any material fails inspection, the material sorting mechanism's negative pressure suction cups pick it up and transfer it to the NG (Not Qualified) product unloading conveyor belt for release. If the bottom surface inspection is successful, the three-axis material transfer mechanism's negative pressure suction cups grab the material and place it into the unloading unit's tray. This solution achieves fully automated inspection, multi-faceted inspection, automatic loading and unloading, and automatic tray transfer, resulting in high inspection efficiency and accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a multi-angle visual inspection device according to the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of a multi-angle visual inspection device according to the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the loading or unloading unit of the multi-angle visual inspection device of the present invention;

[0018] Figure 4 This is a schematic diagram of the material tray transfer mechanism of a multi-angle visual inspection device according to the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of a three-axis material transfer mechanism of a multi-angle vision inspection device according to the present invention;

[0020] Figure 6 for Figure 5 Enlarged structural diagram of section A in the middle;

[0021] Figure 7 This is a schematic diagram of the material detection mechanism of a multi-angle visual inspection device according to the present invention.

[0022] In the diagram: 1. Frame; 2. Material tray loading and unloading mechanism; 21. Loading unit; 22. Unloading unit; 23. Roller conveyor; 24. Material tray lifting module; 25. Blocking cylinder; 26. Stop block; 27. Lifting frame; 28. Lifting linear module; 29. ​​Bearing lifting plate; 210. Baffle; 3. Material tray transfer mechanism; 31. Slide rail; 32. Material tray fixing frame; 33. Material tray loading hole; 34. Material tray unloading hole; 35. Fixing cylinder; 36. Abutment plate; 37. Material tray transfer linear module; 4. Three-axis material transfer mechanism; 41. Y-axis linear support frame; 42. Y-axis linear module; 43. X-axis linear support plate; 44. X-axis linear module; 45. Z-axis support frame; 46. Z-axis lifting linear module; 47. Motor 48. Support frame; 49. Servo rotary motor; 40. Fixing frame; 410. Negative pressure material transfer suction cup; 411. Material positioning CCD; 5. Material detection mechanism; 51. Bottom CCD; 52. Lower base; 53. Profile protection railing; 54. Detection and feeding linear module; 55. Carrier; 56. Detection fixing frame; 57. First upper CCD; 58. Left support; 59. Right support; 510. Left CCD; 511. Right CCD; 512. Light curtain sensor; 513. Auxiliary support; 514. Second upper CCD; 6. Material sorting mechanism; 61. NG product unloading conveyor belt; 62. Rotary cylinder; 63. Slide table lifting cylinder; 64. Sorting bracket; 65. Detection and transfer negative pressure suction cup; 7. Material tray; 8. Material. Detailed Implementation

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] like Figure 1 As shown, a multi-angle visual inspection device includes a frame 1, on which are mounted...

[0025] The material tray loading and unloading mechanism 2 includes a loading unit 21 and an unloading unit 22 with the same structure and arranged side by side. Both the loading unit 21 and the unloading unit 22 include a roller conveyor line 23 and a material tray lifting module 24 arranged at the end of the roller conveyor line 23. The roller conveyor line 23 is provided with a number of blocking cylinders 25. Each blocking cylinder 25 is connected to a stop block 26 that can block the material tray. The material tray lifting module 24 includes a lifting frame 27. The lifting frame 27 is provided with a lifting linear module 28. The lifting linear module 28 is connected to a supporting lifting plate 29 that can support the material tray.

[0026] The tray transfer mechanism 3 includes a pair of slide rails 31 mounted on a frame 1. A tray fixing frame 32 is connected to the pair of slide rails 31 via a slider. The tray fixing frame 32 has a tray loading hole 33 and a tray unloading hole 34. The tray loading hole 33 is located directly above the tray lifting module 24 of the loading unit 21, and the tray unloading hole 34 is located directly above the tray lifting module 24 of the unloading unit 22. The tray fixing frame 32 has a tray loading hole 33 and a tray unloading hole 34. Fixed cylinders 35 are respectively provided on the four sides of the material tray discharge hole 34. The fixed cylinders 35 are connected to the abutment plates 36 that can abut against the material tray. The frame 1 is provided with a material tray transfer linear module 37 that can drive the fixed platform to move along the pair of slide rails 31. The material tray transfer linear module 37 can drive the material tray loading hole 33 to move directly above the material tray lifting module 24 of the unloading unit 22. The material tray fixed platform 32 is provided with multiple photoelectric sensors that can detect the material tray.

[0027] The three-axis material transfer mechanism 4 includes two parallel Y-axis linear support frames 41 arranged at both ends of the frame 1. Each Y-axis linear support frame 41 is fixedly equipped with a Y-axis linear module 42. The two Y-axis linear modules 42 are connected together by an X-axis linear support plate 43. An X-axis linear module 44 is fixedly equipped on the X-axis linear support plate 43. A Z-axis support frame 45 is fixedly connected to the X-axis linear module 44. A Z-axis lifting linear module 46 is arranged on the Z-axis support frame 45. A motor support frame 47 is fixedly connected to the Z-axis lifting linear module 46. A servo rotary motor 48 is fixedly connected to the motor support frame 47. The output shaft of the servo rotary motor 48 is connected to a fixed frame 49. Several negative pressure material transfer suction cups 410 capable of sucking up and releasing materials are fixedly arranged on the fixed frame 49. A material positioning CCD 411 is arranged on the fixed frame 49.

[0028] The material inspection mechanism 5 includes a bottom visual inspection unit and a left, right, and upper three-sided visual inspection unit mounted on a frame 1. The bottom visual inspection unit includes a bottom CCD 51 with the lens facing upward, a lower base 52 for fixing the bottom CCD 51, and two profile protection rails 53 fixed on the lower base 52. The left, right, and upper three-sided visual inspection unit includes a detection feeding linear module 54 and a three-sided CCD fixing assembly. The detection feeding linear module 54 is equipped with a carrier 55 for fixing materials. The three-sided CCD fixing assembly includes a detection fixing frame 56. The detection feeding linear module 54 passes through the detection fixing frame 56. A first upper CCD 57 is mounted on the top of the detection fixing frame 56. A left support 58 and a right support 59 are respectively mounted on both sides of the detection fixing frame 56. A left CCD 510 and a right CCD 511 are respectively fixedly connected to the left support 58 and the right support 59.

[0029] The material sorting mechanism 6 includes a rotary transfer unit disposed on one side of the detection and feeding linear module 54 and an NG product discharge conveyor belt 61 disposed on one side of the rotary transfer unit. The rotary transfer unit includes a rotary cylinder 62 fixedly disposed on the frame 1. A slide table lifting cylinder 63 is fixedly connected to the rotary cylinder 62. A sorting bracket 64 is fixedly connected to the slide table lifting cylinder 63. A detection transfer negative pressure suction cup 65 capable of adsorbing and releasing materials on the carrier 55 is fixedly disposed on the sorting bracket 64. The rotary cylinder 62 can drive the negative pressure suction cup on the slide table lifting cylinder 63 to rotate from the carrier 55 to the NG product discharge conveyor belt 61.

[0030] The working principle of this multi-angle visual inspection device is as follows: a manual person places a tray 7 filled with material 8 into the feeding unit 21 of the tray feeding and unloading mechanism 2, that is, onto the roller conveyor line 23 of the feeding unit 21. If the equipment is already running and the previously placed tray 7 is still on the bearing lifting plate 29, then the blocking cylinder 25 on the roller conveyor line 23 drives the stop block 26 to rise, blocking the newly placed tray. When the previous tray 7 is used up, the blocking cylinder 25 drives the stop block 26 to fall, and the lifting linear module drives the bearing lifting plate 29 to fall to its lowest position. At this time, the roller conveyor line 23 moves the newly placed tray 7 to the bearing lifting plate 29, and then the lifting linear module drives the bearing lifting plate 29 and the tray 7 to rise to the tray transfer mechanism 3. The conveying direction of the roller conveyor line 23 of the unloading unit 22 is opposite to that of the roller conveyor line 23 of the loading unit 21. After a certain amount of material tray 7 is received on the bearing lifting plate 29 of the unloading unit 22, the bearing lifting plate 29 drives the material tray to descend, and the roller conveyor line 23 drives the material tray 7 to move out. At this time, the blocking cylinder 25 of the unloading unit 22 drives the stop block 26 to rise and block the material tray 7 until the material tray 7 is manually removed.

[0031] The material tray transfer mechanism 3 is used to receive the material tray 7 filled with the material to be tested 8 and to transfer the empty material tray 7. The material tray loading hole 33 is located directly above the material tray lifting module 24 of the loading unit 21. The full material tray 7 is lifted by the bearing lifting plate 29 of the loading unit 21. After the uppermost material tray 7 is detected by the photoelectric sensor, the fixing cylinder 35 drives the abutment plate 36 to abut and fix the uppermost A material tray. After the A material tray is fixed, the three-axis material transfer mechanism 4 can pick up the material normally. When the material in the A material tray is completely picked up, the transfer action begins. First, the fixed cylinder 35 at the material tray discharge hole 34 retracts the abutment plate 36. Then, the bearing lifting plate 29 of the unloading unit 22 drives the B material tray at the material tray discharge hole 34 to descend. Then, the material tray transfer linear module 37 drives the entire material tray fixing frame 32 and the A material tray to move along the slide rail 31. The material tray transfer linear module 37 can drive the A material tray to move directly above the material tray lifting module 24 of the unloading unit 22. Then, the fixed cylinder 35 at the material tray loading hole 33 retracts the abutment plate 36, and the A material tray falls onto the B material tray. Then, the material tray transfer linear module 37 can drive the material tray fixing frame to reset. After the photoelectric sensor on the material tray fixing frame detects the A material tray, the fixed cylinder 35 at the material tray discharge hole 34 drives the abutment plate 36 to fix the A material tray. Then, the loading unit 21 drives the C material tray to rise to the material tray loading hole 33 again. The fixing method is the same as that of the A material tray. This process is repeated to realize the turnover of the material tray.

[0032] The two Y-axis linear modules 42 of the three-axis material transfer mechanism 4 enable the negative pressure material transfer suction cup 410 to move along the Y-axis direction, the X-axis linear module 44 enables the negative pressure material transfer suction cup 410 to move along the X-axis direction, and the Z-axis lifting linear module 46 enables the negative pressure material transfer suction cup 410 to move along the Z-axis direction. The three modules work together to achieve omnidirectional movement of the negative pressure material transfer suction cup 410 throughout the entire frame 1. The servo rotary motor 48 drives the fixed frame 49 and the negative pressure material transfer suction cup 410 to rotate. The negative pressure material transfer suction cup 410 achieves negative pressure adsorption through a miniature vacuum generator. When gripping material, the negative pressure material transfer suction cup 410 contacts the material. To ensure gripping accuracy, a material positioning CCD 411 is installed to ensure the accuracy of the material gripping process and to identify whether all the material in the tray has been gripped.

[0033] The material inspection mechanism 5 can perform visual inspection of materials in four directions. First, the negative pressure material transfer suction cup 410 of the three-axis material transfer mechanism 4 grabs the material to the bottom visual inspection unit. The bottom CCD 51 performs visual inspection of the bottom surface of the material through the two profile protective rails 53. Then, the negative pressure material transfer suction cup 410 places the material on the carrier 55. If the bottom surface inspection fails, the inspection transfer negative pressure suction cup 65 of the material sorting mechanism 6 picks up the material and transfers it to the NG product discharge belt 61 for release. If the bottom surface inspection passes, the inspection feeding linear module 54 drives the carrier 55 and the material towards the correct direction. The detection fixture 56 moves to its position. After it moves into place, the top CCD 57, left CCD 510, and right CCD 511 visually inspect the top, left, and right sides of the material, respectively. Then, the linear module drives the carrier 55 and the material to move back. If the material fails the inspection, the detection transfer negative pressure suction cup 65 of the material sorting mechanism 6 picks up the material and transfers it to the NG product discharge belt 61 for release. If all inspections are qualified, the negative pressure material transfer suction cup 410 of the three-axis material transfer mechanism 4 grabs the material and puts it into the tray of the unloading unit 22. Each material is inspected in this manner.

[0034] Preferably, a baffle 210 is fixedly provided at the entrance of the roller conveyor line 23. The baffle 210 can prevent stacked pallets from falling off the roller conveyor line 23.

[0035] Preferably, the abutment plate 36 is L-shaped to support the pallet. This arrangement allows the abutment plate 36 to support the pallet, resulting in better fixation.

[0036] Preferably, a light curtain sensor 512 capable of detecting the carrier 55 and materials is provided at the entrance of the detection fixture 56. The light curtain sensor 512 can detect the carrier 55 and materials entering and leaving the detection fixture 56.

[0037] Preferably, the three-sided CCD fixing assembly further includes an auxiliary bracket 513 disposed on one side of the detection feeding linear module 54 and a second upper CCD 514 disposed on the auxiliary bracket 513. Since the top surface of the material typically provides more visual information, this arrangement can further improve detection accuracy.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A multi-angle visual inspection device, comprising a frame, characterized in that, The frame is equipped with... The material tray loading and unloading mechanism includes a loading unit and an unloading unit with the same structure arranged side by side. Both the loading unit and the unloading unit include a roller conveyor line and a material tray lifting module located at the end of the roller conveyor line. Several blocking cylinders are arranged on the roller conveyor line, and each blocking cylinder is connected to a stop block that can block the material tray. The material tray lifting module includes a lifting frame, and a lifting linear module is arranged on the lifting frame. The lifting linear module is connected to a support lifting plate that can support the material tray. The tray transfer mechanism includes a pair of slide rails mounted on a frame. A tray fixing frame is connected to the pair of slide rails via a slider. The tray fixing frame has a tray loading hole and a tray unloading hole. The tray loading hole is located directly above the tray lifting module of the loading unit, and the tray unloading hole is located directly above the tray lifting module of the unloading unit. A fixing cylinder is installed on each of the four sides of the tray loading hole and the tray unloading hole on the tray fixing frame. The fixing cylinder is connected to a stop plate that can abut against the tray. A tray transfer linear module is mounted on the frame, which can move the fixing frame along the pair of slide rails. The tray transfer linear module can move the tray loading hole to directly above the tray lifting module of the unloading unit. Multiple photoelectric sensors capable of detecting the tray are mounted on the tray fixing frame. The three-axis material transfer mechanism includes two parallel Y-axis linear support frames set at both ends of the frame. Each Y-axis linear support frame is fixedly equipped with a Y-axis linear module. The two Y-axis linear modules are connected to an X-axis linear support plate. An X-axis linear module is fixedly equipped on the X-axis linear support plate. A Z-axis support frame is fixedly connected to the X-axis linear module. A Z-axis lifting linear module is set on the Z-axis support frame. A motor support frame is fixedly connected to the Z-axis lifting linear module. A servo rotary motor is fixedly connected to the motor support frame. The output shaft of the servo rotary motor is connected to a fixed frame. Several negative pressure material transfer suction cups capable of picking up and releasing materials are fixedly set on the fixed frame. A material positioning CCD is set on the fixed frame. The material inspection mechanism includes a bottom-side vision inspection unit and three-sided vision inspection units (left, right, and upper) mounted on a frame. The bottom-side vision inspection unit includes a bottom-side CCD with the lens facing upwards, a lower base for fixing the bottom-side CCD, and two profile protective rails fixed on the lower base. The three-sided vision inspection units include a detection feeding linear module and a three-sided CCD fixing assembly. The detection feeding linear module is equipped with a carrier for fixing materials. The three-sided CCD fixing assembly includes a detection fixing frame. The detection feeding linear module passes through the detection fixing frame. A first upper CCD is mounted on the top of the detection fixing frame. A left support and a right support are respectively mounted on both sides of the detection fixing frame. A left CCD and a right CCD are respectively fixedly connected to the left support and the right support. The material sorting mechanism includes a rotary transfer unit disposed on one side of the detection and feeding linear module and an NG product discharge conveyor disposed on one side of the rotary transfer unit. The rotary transfer unit includes a rotary cylinder fixedly mounted on the frame. A slide lifting cylinder is fixedly connected to the rotary cylinder. A sorting bracket is fixedly connected to the slide lifting cylinder. A detection and transfer negative pressure suction cup capable of adsorbing and releasing materials on the carrier is fixedly mounted on the sorting bracket. The rotary cylinder can drive the negative pressure suction cup on the slide lifting cylinder to rotate from the carrier to the NG product discharge conveyor.

2. The multi-angle visual inspection device according to claim 1, characterized in that: A baffle is fixedly installed at the entrance of the roller conveyor line.

3. The multi-angle visual inspection device according to claim 1, characterized in that: The abutment plate is L-shaped to support the tray.

4. The multi-angle visual inspection device according to claim 1, characterized in that: The entrance of the detection fixture is equipped with a light curtain sensor capable of detecting the carrier and materials.

5. The multi-angle visual inspection device according to claim 1, characterized in that: The three-sided CCD fixing assembly also includes an auxiliary bracket disposed on one side of the detection and feeding linear module and a second upper CCD disposed on the auxiliary bracket.

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