Appearance defect detection equipment

Abstract

The utility model discloses appearance defect detection equipment, which relates to the technical field of defect detection, and comprises a conveying carrier tape and a plurality of industrial cameras arranged on the peripheral side of the conveying carrier tape, the plurality of industrial cameras are distributed on the front side, the rear side and the upper part of the conveying carrier tape, and the plurality of industrial cameras are used for capturing images of the two ends and the surface of a workpiece. Through the arrangement of the turnover mechanism and the driving assembly, when a workpiece on the conveying carrier belt moves along with the conveying carrier belt, the industrial cameras conduct defect detection on the surfaces of the two ends and the upper portion of the workpiece respectively, and when the workpiece passes through the turnover mechanism, the driving assembly drives the turnover mechanism to rotate; therefore, the workpiece on the conveying carrier belt is turned over by 180 degrees at the position, a plurality of industrial cameras can conveniently conduct defect detection on other surfaces of the workpiece except for the front end and the rear end, the purpose of comprehensive detection can be achieved, the device can be suitable for existing assembly line type detection work, the detection effect is better, and the detection efficiency is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of defect detection technology, and in particular to a device for detecting appearance defects. Background Technology

[0002] Traditional online inspection technology is used to inspect rectangular, disc-shaped, and tile-shaped workpieces. Manual inspection of the end face quality of the workpieces is required to reject any defective ones. Then, qualified products are collected, sorted, and packed, which consumes a lot of manpower, makes the inspection quality uncontrollable, and results in low overall production efficiency.

[0003] To address the aforementioned issues, patent document CN207288097U discloses an appearance defect detection device, comprising a feeding device, a feeding and pushing mechanism, a detection and pushing mechanism, a detection channel, a defective product rejection device, and a good product sorting mechanism. A first end-face quality detection station and a second end-face quality detection station are installed on both sides of the detection channel. By setting up the first and second end-face quality detection stations, the workpieces are subjected to quality inspection, defective products are automatically rejected, and good products are automatically sorted, saving a significant amount of labor and solving problems such as low efficiency, slow speed, and susceptibility to subjective factors in manual inspection, thereby improving production efficiency.

[0004] Based on the above search and combined with existing technologies, it was found that existing appearance defect detection equipment, in addition to inspecting the end face of the workpiece, also needs to inspect other surfaces of the workpiece in order to achieve the purpose of comprehensive inspection. However, existing appearance defect detection equipment places the workpiece horizontally during inspection, and its surface cannot be rotated, which easily leads to blind spots in inspection. Therefore, an appearance defect detection device is needed. Utility Model Content

[0005] The purpose of this application is to provide an appearance defect detection device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: an appearance defect detection device, including a conveyor belt and multiple industrial cameras disposed around the conveyor belt, the multiple industrial cameras being distributed on the front and rear sides and above the conveyor belt, the multiple industrial cameras being used to capture images of the two ends and surface of the workpiece.

[0007] Mounting plates are provided on both the front and rear sides of the middle section of the conveyor belt. The two mounting plates are mirrored and each mounting plate is equipped with a flipping mechanism. The flipping mechanism is used to flip the workpiece on the conveyor belt so that the workpiece on the conveyor belt is flipped 180° at that point.

[0008] The mounting plate also contains a drive assembly that drives the flipping mechanism to rotate.

[0009] Preferably, the flipping mechanism includes:

[0010] A rotating disk is rotatably connected to a mounting plate via a connecting shaft.

[0011] The rotating abutment has two pieces, which are symmetrically arranged along the central axis of the rotating disk. One end of the rotating abutment is adjustable and fixed to the rotating disk.

[0012] The connecting shaft is connected to the output end of the drive assembly for transmission.

[0013] Preferably, the driving component includes:

[0014] The drive motor is fixed to the side of the mounting plate away from the conveyor belt via a bracket;

[0015] The transmission wheel is provided in multiple ways, with two transmission wheels fixedly sleeved on two connecting shafts, and the other two transmission wheels being connected to each other via a transmission shaft.

[0016] The transmission belt has two belts, which are respectively mounted on two drive pulleys located on the same side.

[0017] The output shaft of the drive motor is connected to one of the connecting shafts.

[0018] Preferably, a groove is provided on the side of the rotating disk near the conveyor belt, and one end of the tilting abutment is slidably connected to the groove;

[0019] A bidirectional screw is rotatably mounted on the rotating disk. The thread of the bidirectional screw passes through two flip-up abutments, and one end of the bidirectional screw rotatably passes through a slide groove and extends to the outside of the rotating disk. An adjustment knob is fixed to the end of the bidirectional screw.

[0020] Preferably, an anti-slip sleeve is fixedly fitted on the flip-up abutment. The anti-slip sleeve is an elastic sleeve made of rubber material, and the surface of the anti-slip sleeve is provided with fine anti-slip texture.

[0021] Preferably, a fixed platform with a fixed position is provided below the mounting plate, and a hydraulic cylinder is fixed at the upper end of the fixed platform. The upper end of the piston rod of the hydraulic cylinder is fixed to the lower end of the mounting plate.

[0022] Preferably, the mounting plate is rotatably connected to the connecting shaft via a connecting bearing, and a through hole is provided at the lower end of the mounting plate, through which the drive shaft rotates.

[0023] In summary, the technical effects and advantages of this utility model are as follows:

[0024] 1. In this utility model, by setting up a flipping mechanism and a drive component, when the workpiece on the conveyor belt moves with the conveyor belt, multiple industrial cameras respectively perform defect detection on both ends and the upper surface of the workpiece. When the workpiece passes the flipping mechanism, the drive component drives the flipping mechanism to rotate, thereby causing the workpiece on the conveyor belt to flip 180° at that point. This facilitates multiple industrial cameras to perform defect detection on the other surfaces of the workpiece except for the front and rear ends, achieving the purpose of comprehensive detection. It is also applicable to existing assembly line-style inspection operations, with better detection effect and significantly improved detection efficiency.

[0025] 2. In this utility model, by setting up a bidirectional screw, the operator can rotate the bidirectional screw by rotating the adjustment knob. When the bidirectional screw rotates, it can drive the two flip-up abutments to move closer or further apart, thereby adjusting the distance between the two flip-up abutments to adapt to workpieces of different widths and sizes. This can improve the applicability of the appearance defect detection equipment and make it more flexible to use. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0028] Figure 2 This is a schematic diagram of the flipping mechanism structure in this embodiment;

[0029] Figure 3 This is a schematic diagram of the mounting plate structure in this embodiment;

[0030] Figure 4 This is a schematic diagram of the driving component structure in this embodiment.

[0031] In the diagram: 1. Conveyor belt; 2. Industrial camera; 3. Mounting plate; 31. Connecting bearing; 32. Perforation; 4. Tilting mechanism; 41. Rotary disk; 411. Slide groove; 42. Tilting support column; 43. Anti-slip sleeve; 44. Bidirectional screw; 441. Adjustment knob; 45. Connecting shaft; 5. Drive assembly; 51. Drive motor; 52. Transmission wheel; 53. Transmission belt; 54. Transmission shaft; 6. Hydraulic cylinder; 7. Fixed platform. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example: Reference Figures 1-4 The device for detecting appearance defects shown includes a conveyor belt 1 and a plurality of industrial cameras 2 disposed around the conveyor belt 1. The plurality of industrial cameras 2 are distributed on the front, rear, sides and above the conveyor belt 1. In this embodiment, at least two industrial cameras 2 are located above the conveyor belt 1 and are distributed at intervals. The plurality of industrial cameras 2 are used to capture images of the two ends and surface of the workpiece.

[0034] Mounting plates 3 are provided on both the front and rear sides of the middle section of the conveyor belt 1. The two mounting plates 3 are mirror images of each other, and a flipping mechanism 4 is installed on each of the two mounting plates 3. The flipping mechanism 4 is used to flip the workpiece on the conveyor belt 1 so that the workpiece on the conveyor belt 1 flips 180° at that point.

[0035] The mounting plate 3 is also equipped with a drive assembly 5, which drives the flipping mechanism 4 to rotate.

[0036] Based on the above structure, when the workpiece on the conveyor belt 1 moves with the conveyor belt 1, multiple industrial cameras 2 respectively perform defect detection on the two ends and the upper surface of the workpiece. When the workpiece passes the flipping mechanism 4, the drive component 5 drives the flipping mechanism 4 to rotate, so that the workpiece on the conveyor belt 1 flips 180° at that point. This makes it easier for multiple industrial cameras 2 to perform defect detection on the other surfaces of the workpiece except for the front and rear ends, thus achieving the purpose of comprehensive detection. It is also applicable to existing assembly line-style inspection operations, with better detection effect and significantly improved detection efficiency.

[0037] Furthermore, the flipping mechanism 4 includes:

[0038] Rotary disk 41 is rotatably connected to mounting plate 3 via connecting shaft 45, and mounting plate 3 is rotatably connected to connecting shaft 45 via connecting bearing 31.

[0039] Two flip-up abutments 42 are provided and symmetrically arranged along the central axis of the rotating disk 41. One end of the flip-up abutment 42 is adjustable and fixed to the rotating disk 41.

[0040] The connecting shaft 45 is connected to the output end of the drive assembly 5 via a transmission connection.

[0041] When the drive assembly 5 drives the connecting shaft 45 to rotate, the connecting shaft 45 drives the rotating disk 41 to rotate, thereby causing the two flipping abutments 42 on the rotating disk 41 to rotate synchronously. The two flipping abutments 42 clamp the upper and lower surfaces of the workpiece, so that the workpiece can rotate synchronously with the two flipping abutments 42. In conjunction with the conveyor belt 1, the lower end of the workpiece is provided with friction, so that the workpiece can complete a 180° flip, thereby ultimately achieving the purpose of facilitating comprehensive inspection of the workpiece.

[0042] Furthermore, the drive component 5 includes:

[0043] The drive motor 51 is fixed to the side of the mounting plate 3 away from the conveyor belt 1 by a bracket;

[0044] The transmission wheel 52 is provided in multiple ways. Two transmission wheels 52 are fixedly sleeved on two connecting shafts 45, and the other two transmission wheels 52 are connected by a transmission shaft 54. The lower end of the mounting plate 3 is also provided with a through hole 32, through which the transmission shaft 54 ​​rotates and passes through the through hole 32.

[0045] Two transmission belts 53 are provided and are respectively driven and sleeved on two transmission wheels 52 located on the same side;

[0046] The output shaft of the drive motor 51 is connected to one of the connecting shafts 45.

[0047] After the drive motor 51 starts, it drives one of the connecting shafts 45 to rotate. One of the connecting shafts 45 drives the other connecting shaft 45 to rotate through the transmission wheel 52, the transmission belt 53 and the transmission shaft 54. This enables the two rotating disks 41 located on the front and rear sides of the conveyor belt 1 to rotate synchronously, and the rotation speed and direction are the same, so as to achieve the effect of driving the workpiece to flip.

[0048] Furthermore, a groove 411 is provided on the side of the rotating disk 41 near the conveyor belt 1, and one end of the flipping abutment 42 is slidably connected to the groove 411.

[0049] A bidirectional screw 44 is rotatably mounted on the rotating disk 41. The bidirectional screw 44 is threaded through two flip-up abutments 42, and one end of the bidirectional screw 44 rotatably passes through the slide groove 411 and extends to the outside of the rotating disk 41. An adjustment knob 441 is fixed to the end of the bidirectional screw 44.

[0050] The operator can rotate the bidirectional screw 44 by rotating the adjustment knob 441. When the bidirectional screw 44 rotates, it can drive the two flip-up abutments 42 to move closer or further apart, thereby adjusting the distance between the two flip-up abutments 42 to adapt to workpieces of different widths and sizes. This can improve the applicability of the appearance defect detection equipment and make it more flexible to use.

[0051] Furthermore, an anti-slip sleeve 43 is fixedly fitted on the flipping abutment 42. The anti-slip sleeve 43 is an elastic sleeve made of rubber material (or other existing materials that are also flexible and have a large surface friction coefficient, such as elastic sponge). The surface of the anti-slip sleeve 43 is provided with fine anti-slip textures. By setting the anti-slip sleeve 43, the stability of the workpiece during the flipping process can be enhanced, and the effectiveness of the workpiece flipping action can be guaranteed.

[0052] Furthermore, a fixed platform 7 with a fixed position is provided below the mounting plate 3. A hydraulic cylinder 6 is fixed at the upper end of the fixed platform 7. The upper end of the piston rod of the hydraulic cylinder 6 is fixed to the lower end of the mounting plate 3. By setting the hydraulic cylinder 6, the height of the mounting plate 3 can be adjusted, that is, the height of the flipping mechanism 4 can be adjusted, so that when adjusting the distance between the two flipping abutments 42, the two flipping abutments 42 can still be close to the workpiece when rotating, thereby achieving the purpose of driving the workpiece to rotate after adjustment.

[0053] It should be noted that the workpiece on the conveyor belt 1 needs to extend beyond the edge of the conveyor belt 1, and there is a gap between the mounting plate 3 and the edge of the conveyor belt 1 so that the workpiece will not rub against the mounting plate 3 when sliding, thus affecting the conveying effect. At the same time, the position of the flipping abutment 42 coincides with the end of the workpiece, but the end of the flipping abutment 42 and the edge of the conveyor belt 1 are fitted with a gap, so the two will not coincide, thus avoiding mutual obstruction.

[0054] The working principle of this utility model is as follows: During daily use, when the workpiece on the conveyor belt 1 moves with the conveyor belt 1, multiple industrial cameras 2 respectively perform defect detection on the two ends and the upper surface of the workpiece. When the workpiece passes the flipping mechanism 4, the drive motor 51 starts and drives one of the connecting shafts 45 to rotate. One of the connecting shafts 45 drives the other connecting shaft 45 to rotate through the transmission wheel 52, the transmission belt 53 and the transmission shaft 54. This enables the two rotating disks 41 located on the front and rear sides of the conveyor belt 1 to rotate synchronously, and the rotation speed and direction are the same. This causes the two flipping abutments 42 on the rotating disks 41 to rotate synchronously, and the two flipping abutments 42 clamp the upper and lower end surfaces of the workpiece. This allows the workpiece to rotate synchronously with the two flipping abutments 42. With the help of the conveyor belt 1, the lower end of the workpiece is provided with friction, causing the workpiece on the conveyor belt 1 to flip 180° at that point. This facilitates the multiple industrial cameras 2 to perform defect detection on the other surfaces of the workpiece except for the front and rear ends, achieving the purpose of comprehensive detection. It is also applicable to existing assembly line inspection operations, with better detection effect and significantly improved detection efficiency.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface defect detection device, comprising a conveyor belt (1) and a plurality of industrial cameras (2) disposed around the periphery of the conveyor belt (1), wherein the plurality of industrial cameras (2) are distributed on the front and rear sides and above the conveyor belt (1), and the plurality of industrial cameras (2) are used to capture images of the two ends and surface of the workpiece, characterized in that: Mounting plates (3) are provided on both the front and rear sides of the middle section of the conveyor belt (1). The two mounting plates (3) are mirror images of each other, and a flipping mechanism (4) is installed on each of the two mounting plates (3). The flipping mechanism (4) is used to flip the workpiece on the conveyor belt (1) so that the workpiece on the conveyor belt (1) flips 180° at that point. The mounting plate (3) is also equipped with a drive assembly (5), which drives the flipping mechanism (4) to rotate.

2. The appearance defect detection device according to claim 1, characterized in that: The flipping mechanism (4) includes: Rotating disk (41), the rotating disk (41) is rotatably connected to the mounting plate (3) via a connecting shaft (45); Two flip-up abutments (42) are provided and symmetrically arranged along the central axis of the rotating disk (41). One end of the flip-up abutment (42) is adjustable and fixed to the rotating disk (41). The connecting shaft (45) is connected to the output end of the drive assembly (5) via a transmission connection.

3. The appearance defect detection device according to claim 2, characterized in that: The driving component (5) includes: The drive motor (51) is fixed to the side of the mounting plate (3) away from the conveyor belt (1) by means of a bracket; The transmission wheel (52) is provided in multiple ways, wherein two of the transmission wheels (52) are fixedly sleeved on two connecting shafts (45), and the other two transmission wheels (52) are connected by transmission shaft (54). Two transmission belts (53) are provided and are respectively driven and sleeved on two transmission wheels (52) located on the same side; The output shaft of the drive motor (51) is connected to one of the connecting shafts (45) for transmission.

4. The appearance defect detection device according to claim 2, characterized in that: The rotating disk (41) has a groove (411) on the side near the conveyor belt (1), and one end of the flipping abutment (42) is slidably connected to the groove (411). A bidirectional screw (44) is rotatably mounted on the rotating disk (41). The bidirectional screw (44) is threaded through two flip-up abutments (42), and one end of the bidirectional screw (44) rotatably passes through the slide groove (411) and extends to the outside of the rotating disk (41). An adjustment knob (441) is fixed at the end of the bidirectional screw (44).

5. The appearance defect detection device according to claim 2, characterized in that: The flip-up abutment (42) is fixedly fitted with an anti-slip sleeve (43), which is an elastic sleeve made of rubber material, and the surface of the anti-slip sleeve (43) is provided with fine anti-slip texture.

6. The appearance defect detection device according to claim 1, characterized in that: A fixed platform (7) with a fixed position is provided below the mounting plate (3). A hydraulic cylinder (6) is fixed at the upper end of the fixed platform (7). The upper end of the piston rod of the hydraulic cylinder (6) is fixed to the lower end of the mounting plate (3).

7. The appearance defect detection device according to claim 3, characterized in that: The mounting plate (3) is rotatably connected to the connecting shaft (45) via the connecting bearing (31). The lower end of the mounting plate (3) is also provided with a through hole (32), through which the drive shaft (54) rotates.

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