A high-efficiency intelligent visual inspection device and inspection method

Abstract

This invention belongs to the field of product testing technology, and particularly relates to a high-efficiency intelligent visual inspection device and method. The invention provides a high-efficiency intelligent visual inspection device that distinguishes between qualified and unqualified products by setting up a visual inspection mechanism and a screening component. Furthermore, it removes impurities from the bolt surface by setting up a bolt surface treatment component, achieving precise detection and accuracy. The invention also provides a high-efficiency intelligent visual inspection method that achieves automatic conveying, automatic detection, and automatic differentiation by setting up a conveying component, a visual inspection mechanism, and a screening component, thereby improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of product testing technology, and more specifically to a high-efficiency intelligent visual inspection device and testing method. Background Technology

[0002] During the bolt production process, it is necessary to inspect the appearance and dimensions of the bolts and separate qualified and unqualified products after inspection. However, the existing bolt appearance inspection is not efficient. After inspection, qualified and unqualified products need to be distinguished manually, which is time-consuming and labor-intensive and not suitable for large-scale production needs. In addition, the presence of surface impurities in existing bolts can affect the accuracy of inspection and reduce the accuracy rate of bolt inspection. Summary of the Invention

[0003] One of the objectives of this invention is to address the shortcomings of existing technologies by providing a highly efficient and intelligent visual inspection device. This device uses a visual inspection mechanism to inspect the appearance of bolts. A screening component uses air blowing to transfer qualified bolts to a qualified product storage chamber and unqualified bolts to an unqualified product storage chamber, allowing for precise differentiation and reducing subsequent manual sorting work. Furthermore, automated inspection improves work efficiency and accuracy. A bolt surface treatment component cleans and dries the surface of the bolts before they are fed to the turntable, preventing impurities from affecting the accuracy of the inspection.

[0004] The technical solution of the present invention is as follows:

[0005] A high-efficiency intelligent visual inspection device includes a workbench, a feeding assembly installed behind the workbench, a conveying assembly rotatably mounted on the workbench, a visual inspection mechanism and a screening assembly arranged along the moving path of the conveying assembly, the feeding assembly including an output pipe, a bolt surface treatment assembly installed at one end of the output pipe, the conveying assembly for conveying bolts, the bolt surface treatment assembly for cleaning impurities from the bolt surface and drying surface moisture, the visual inspection mechanism for acquiring image information of the bolts, and the screening assembly for screening qualified bolts and unqualified bolts by air blowing.

[0006] As a preferred embodiment, the feeding assembly further includes a mounting base and a vibratory feeder placed on the mounting base, with the output pipe obliquely connected to the output end of the vibratory feeder.

[0007] As a preferred embodiment, the conveying assembly includes a fixed plate fixedly mounted on the workbench, a groove formed on the fixed plate, a slide rod slidably mounted in the groove, a support frame fixedly mounted on the slide rod, a turntable fixedly mounted on the top of the support frame, and a groove formed on the turntable. A motor is provided below the workbench, the output shaft of the motor is fixedly connected to the support frame, a worm gear a is sleeved on the output shaft of the motor, a worm gear b meshes on the worm gear a, a worm meshes on the worm gear b, a pulley a is fixedly mounted on the outside of the worm, and the groove is adapted to a bolt.

[0008] As a preferred embodiment, the bolt surface treatment assembly includes a fixed shaft a fixedly connected to one end of the output pipe, a fixed shaft b fixedly mounted on the mounting base, a cleaning shaft rotatably mounted between the fixed shaft a and the fixed shaft b, a plurality of water spray holes inclinedly opened on the inner wall of the fixed shaft a, a suction hole a opened on the inner wall of the fixed shaft a, a plurality of soft bristles fixedly mounted on the inner wall of the cleaning shaft, and a plurality of heating wires fixedly mounted on the fixed shaft b. The plurality of water spray holes are connected by water pipes, a negative pressure pipe a is fixedly connected to the suction hole a, and one end of the water pipe is fixedly connected to a water pump.

[0009] As a preferred embodiment, a pulley b is fixedly mounted on the outer side of the cleaning shaft, and a belt is connected between the pulley b and the pulley a. A rotating sleeve is also fitted on the outer side of the cleaning shaft, and the rotating sleeve is fixedly mounted on the fixed shaft b. A suction hole b is opened on the rotating sleeve, and a negative pressure pipe b is fixedly connected to the suction hole b. The negative pressure pipe b is connected to the negative pressure pipe a, and the pulley b is parallel to the pulley a.

[0010] As a preferred embodiment, the visual inspection mechanism includes an infrared sensing device, a CCD visual imaging device, and an image information processing device fixedly mounted on the workbench. The visual inspection mechanism is existing technology and will not be described in detail here.

[0011] As a preferred embodiment, the screening assembly includes a qualified product storage chamber and a non-qualified product storage chamber fixedly mounted on the worktable, and both the qualified product storage chamber and the non-qualified product storage chamber are equipped with air blowing devices.

[0012] As a preferred embodiment, the fixed shaft a, fixed shaft b, and cleaning shaft are all inclined, and the fixed shaft b cooperates with the groove.

[0013] As another preferred option, the turntable is made of a transparent material.

[0014] This invention also provides a highly efficient intelligent visual inspection method, which achieves automatic conveying, automatic inspection, and automatic differentiation by setting up a conveying component, a visual inspection mechanism, and a screening component, thereby improving work efficiency. The method includes the following steps:

[0015] Step 1: The bolts are fed into the bolt surface treatment assembly via the feeding assembly.

[0016] Step 2: Use the bolt surface treatment component to rinse and wash away impurities on the bolt surface, and then dry the surface moisture.

[0017] Step 3: The cleaned bolts slide onto the turntable for transport.

[0018] Step 4: The bolt is imaged and positioned using an infrared sensor and a CCD vision imaging device, and the data is sent to the image information processing device.

[0019] Step 5: The analysis results are sent to the screening component via the image information processing device, and the screening component separates the qualified and unqualified products.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. This invention includes a conveying component, a vision inspection mechanism, and a screening component. A turntable is used to convey bolts, enabling automatic conveying. The vision inspection mechanism inspects the appearance of the bolts and sends the results to the screening component. Two air-blowing devices blow qualified and unqualified bolts into the qualified and unqualified product collection cavities, respectively, achieving automatic detection and differentiation, thus improving detection efficiency.

[0022] 2. The present invention is equipped with a bolt surface treatment component. By setting an inclined water spray hole, the high-pressure water flow drives the bolt to rotate during the water spraying process. By setting a rotatable soft brush, the bolt is cleaned from all directions to remove oil and impurities from the bolt surface, so as to avoid the impurities on the bolt affecting the detection accuracy and precision.

[0023] In summary, this invention has the advantages of high detection efficiency and high accuracy, and is suitable for the field of product testing technology. Attached Figure Description

[0024] The invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 It is a high-efficiency intelligent visual inspection device;

[0026] Figure 2 for Figure 1 Enlarged view of point A;

[0027] Figure 3 This is a schematic diagram of the screening component.

[0028] Figure 4 This is a schematic diagram of the conveying component.

[0029] Figure 5 This is a cross-sectional schematic diagram of the bolt surface treatment assembly;

[0030] Figure 6 This is a schematic diagram showing the state of a bolt rotating due to high-pressure water flow.

[0031] Reference numerals: 1-Workbench; 11-Bolt; 2-Feeding assembly; 3-Conveying assembly; 4-Vision inspection mechanism; 5-Screening assembly; 6-Bolt surface treatment assembly; 21-Output pipe; 22-Mounting base; 23-Vibrating plate; 31-Fixing plate; 32-Slide groove; 33-Slide rod; 34-Support frame; 35-Turntable; 36-Groove; 37-Output shaft; 38-Worm gear a; 39-Worm gear b; 391-Worm; 392-Pulley a; 41-Infrared 42-CCD visual imaging device; 43-Image information processing device; 51-Qualified product storage cavity; 52-Unqualified product storage cavity; 53-Blowing device; 61-Fixed shaft a; 62-Fixed shaft b; 63-Cleaning shaft; 64-Water spray hole; 65-Suction hole a; 66-Soft brush bristles; 67-Suction hole b; 68-Heating wire; 69-Water pipe; 691-Negative pressure pipe a; 7-Pulley b; 71-Belt; 72-Rotating sleeve; 73-Negative pressure pipe b. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0033] Example 1

[0034] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] like Figures 1 to 6 As shown, a high-efficiency intelligent visual inspection device includes a workbench 1, a feeding assembly 2 installed behind the workbench 1, a conveying assembly 3 rotatably mounted on the workbench 1, a visual inspection mechanism 4 and a screening assembly 5 arranged along the moving path of the conveying assembly 3, the feeding assembly 2 including an output pipe 21, a bolt surface treatment assembly 6 arranged at one end of the output pipe 21, the conveying assembly 3 for conveying bolts 11, the bolt surface treatment assembly 6 for cleaning impurities on the surface of the bolts 11 and drying the surface moisture, the visual inspection mechanism 4 for collecting image information of the bolts 11, and the screening assembly 5 for screening qualified bolts 11 and unqualified bolts 11 by air blowing.

[0036] like Figure 1 and Figure 3 As shown, the feeding assembly 2 also includes a mounting base 22 and a vibratory feeder 23 placed on the mounting base 22. The output pipe 21 is inclinedly connected to the output end of the vibratory feeder 23. In use, the operator puts the bolt 11 into the vibratory feeder 23, and the bolt 11 is fed under the action of the vibratory feeder 23. This vibratory feeder 23 is existing technology and will not be described in detail here.

[0037] like Figures 2 to 4 As shown, the conveying assembly 3 includes a fixed plate 31 fixedly mounted on the workbench 1, a slide groove 32 formed on the fixed plate 31, a slide rod 33 slidably mounted in the slide groove 32, a support frame 34 fixedly mounted on the slide rod 33, a turntable 35 fixedly mounted on the top of the support frame 34, and a groove 36 formed on the turntable 35. A motor is provided below the workbench 1, and the output shaft 37 of the motor is fixedly connected to the support frame 34. A worm gear a38 is also sleeved on the output shaft 37 of the motor, and a worm gear b3 meshes with the worm gear a38. 9. A worm gear 391 meshes with the worm wheel b39. A pulley a392 is fixedly installed on the outside of the worm gear 391. The groove 36 is adapted to the bolt 11. First, the motor is turned on. Under the drive of the motor, the support frame 34 and the turntable 35 start to rotate. The slide rod 33 supports the support frame 34, making the structure more stable. By feeding the bolt 11 into the groove 36 and feeding it during the rotation of the turntable 35, the stability of the bolt 11 is improved, and the shaking of the bolt 11 is avoided from affecting the detection accuracy.

[0038] like Figure 5 As shown, the bolt surface treatment assembly 6 includes a fixed shaft a61 fixedly connected to one end of the output pipe 21, a fixed shaft b62 fixedly mounted on the mounting base 22, a cleaning shaft 63 rotatably mounted between the fixed shaft a61 and the fixed shaft b62, several water spray holes 64 obliquely opened on the inner wall of the fixed shaft a61, a suction hole a65 opened on the inner wall of the fixed shaft a61, several soft bristles 66 fixedly mounted on the inner wall of the cleaning shaft 63, and several heating wires 68 fixedly mounted on the fixed shaft b62. The several water spray holes 64 are connected by water pipes 69, and a negative pressure device is fixedly connected to the suction hole a65. When the bolt 11 is fed into the fixed shaft a61, the inclined water spray hole 64 sprays water onto the bolt 11. Under the action of high-pressure water flow, the bolt 11 rotates. At the same time, the soft brush bristles 66 rotate to clean and rinse the bolt 11 from all directions. The impurities and sewage washed away are discharged through the negative pressure pipe a691 and negative pressure pipe b73. Then, the surface moisture of the bolt 11 is dried by the heating wire 68. This method ensures that the surface of the bolt 11 is clean when it is sent to the turntable 35, avoiding impurities on the bolt 11 from affecting the accuracy and precision of the test.

[0039] like Figure 4 and Figure 6 As shown, a pulley b7 is fixedly installed on the outside of the cleaning shaft 63. A belt 71 is connected between pulley b7 and pulley a392. A rotating sleeve 72 is also sleeved on the outside of the cleaning shaft 63. The rotating sleeve 72 is fixedly installed on the fixed shaft b62. A suction hole b67 is opened on the rotating sleeve 72. A negative pressure pipe b73 is fixedly connected to the suction hole b67. The negative pressure pipe b73 is connected to the negative pressure pipe a691. The output shaft 37 of the motor rotates, which drives the worm gear a38 to rotate, thereby driving the worm gear b39 to rotate. The worm gear b39 drives the worm 391 to rotate. Under the action of pulley a392, pulley b7, and belt 71, the cleaning shaft 63 rotates. By setting the rotating sleeve 72, the negative pressure pipe b73 will not rotate with the cleaning shaft 63, and the use of the negative pressure pipe b73 will not be affected.

[0040] like Figure 1 and Figure 3 As shown, the visual inspection mechanism 4 includes an infrared sensor 41, a CCD visual imaging device 42, and an image information processing device 43, which are fixedly installed on the workbench 1. The infrared sensor 41 accurately positions the bolt 11, the CCD visual imaging device 42 captures the appearance of the bolt 11, and the image information processing device 43 processes the appearance information of the bolt 11. The automatic integrated inspection improves work efficiency and inspection accuracy.

[0041] like Figure 2 and Figure 3 As shown, the screening component 5 includes a qualified product storage cavity 51 and an unqualified product storage cavity 52 fixedly installed on the workbench 1. Both the qualified product storage cavity 51 and the unqualified product storage cavity 52 are equipped with air blowing devices 53. In use, the image information processing device 43 sends the detection results to the screening component 5. The air blowing devices 53 blow qualified bolts 11 into the qualified product storage cavity 51 and unqualified bolts 11 into the unqualified product storage cavity 52, realizing automated separation operation, reducing the time of subsequent manual sorting, saving time and effort, and improving work efficiency.

[0042] like Figure 3 As shown, the fixed shaft a61, fixed shaft b62, and cleaning shaft 63 are all inclined. The fixed shaft b62 cooperates with the groove 36. By inclining the fixed shaft a61, fixed shaft b62, and cleaning shaft 63, the bolt 11 can slide more smoothly from the fixed shaft b62 into the turntable 35. The groove 36 allows the bolt 11 to be arranged in an orderly manner on the turntable 35, greatly improving efficiency.

[0043] like Figure 3 As shown, the turntable 35 is made of transparent material, which can make the shooting effect better and more accurate, and avoid errors in the detection results.

[0044] like Figures 1 to 6 As shown, an efficient intelligent visual inspection method includes the following steps:

[0045] Step 1: Feed the bolt 11 into the bolt surface treatment component 6 through the feeding component 2.

[0046] Step 2: The surface of the bolt 11 is washed and rinsed by the bolt surface treatment component 6, and then the surface moisture of the bolt 11 is dried so that the bolt 11 is kept clean before entering the turntable 35, so as to avoid the impurities on the bolt affecting the detection accuracy.

[0047] Step 3: The cleaned bolts 11 slide onto the turntable 35 for conveying, realizing automatic conveying operation and improving work efficiency.

[0048] Step 4: The bolt 11 is imaged and positioned by the infrared sensor 41 and the CCD vision imaging device 42, and the data is sent to the image information processing device 43 to realize the automatic detection operation and improve the detection accuracy.

[0049] Step 5: The analysis results are sent to the screening component 5 through the image information processing device 43. The screening component 5 then screens the qualified and unqualified products, realizing automatic differentiation, reducing the time for subsequent worker sorting, saving time and effort, and further improving work efficiency.

[0050] Example 2

[0051] like Figure 5 As shown, the components that are the same as or corresponding to those in Embodiment 1 are marked with the same reference numerals as those in Embodiment 1. For the sake of simplicity, only the differences from Embodiment 1 will be described below. The difference between Embodiment 2 and Embodiment 1 is that the fixed shaft b62 is made of a high-temperature resistant material.

[0052] In this embodiment, the fixed shaft b62 is made of a high-temperature resistant material to improve its high-temperature resistance and prevent the bolt 11 from damaging the fixed shaft b62 during the drying process.

[0053] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0054] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0055] The above description, in conjunction with the accompanying drawings, represents only preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness and practicality of the present invention.

Claims

1. A high-efficiency intelligent visual inspection device, comprising a worktable (1), characterized in that: A feeding assembly (2) is installed behind the workbench (1). A conveying assembly (3) is rotatably mounted on the workbench (1). A vision inspection mechanism (4) and a screening assembly (5) are mounted on the moving path of the conveying assembly (3). The feeding assembly (2) includes an output pipe (21). A bolt surface treatment assembly (6) is mounted at one end of the output pipe (21). The conveying assembly (3) is used to convey bolts (11). The bolt surface treatment assembly (6) is used to clean impurities on the surface of the bolts (11) and dry the surface moisture. The vision inspection mechanism (4) is used to collect image information of the bolts (11). The screening assembly (5) is used to screen qualified bolts (11) and unqualified bolts (11) by air blowing. The bolt surface treatment assembly (6) includes a fixed shaft a (61) fixedly connected to one end of the output pipe (21), a fixed shaft b (62) fixedly mounted on the mounting base (22), a cleaning shaft (63) rotatably mounted between the fixed shaft a (61) and the fixed shaft b (62), a plurality of water spray holes (64) inclinedly opened on the inner wall of the fixed shaft a (61), a suction hole a (65) opened on the inner wall of the fixed shaft a (61), a plurality of soft bristles (66) fixedly mounted on the inner wall of the cleaning shaft (63), and a plurality of heating wires (68) fixedly mounted on the fixed shaft b (62). The plurality of water spray holes (64) are connected by water pipes (69), and a negative pressure pipe a (691) is fixedly connected to the suction hole a (65). A pulley b (7) is fixedly installed on the outside of the cleaning shaft (63). A belt (71) is connected between the pulley b (7) and the pulley a (392). A rotating sleeve (72) is also sleeved on the outside of the cleaning shaft (63). The rotating sleeve (72) is fixedly installed on the fixed shaft b (62). A suction hole b (67) is opened on the rotating sleeve (72). A negative pressure pipe b (73) is fixedly connected to the suction hole b (67). The negative pressure pipe b (73) is connected to the negative pressure pipe a (691).

2. The high-efficiency intelligent visual inspection device according to claim 1, characterized in that: The feeding assembly (2) also includes a mounting base (22) and a vibratory plate (23) placed on the mounting base (22), and the output pipe (21) is obliquely connected to the output end of the vibratory plate (23).

3. The high-efficiency intelligent visual inspection device according to claim 1, characterized in that: The conveying assembly (3) includes a fixed plate (31) fixedly mounted on the workbench (1), a groove (32) opened on the fixed plate (31), a slide rod (33) slidably mounted in the groove (32), a support frame (34) fixedly mounted on the slide rod (33), a turntable (35) fixedly mounted on the top of the support frame (34), and a groove (36) opened on the turntable (35). A motor is provided below the workbench (1). The output shaft (37) of the motor is fixedly connected to the support frame (34). A worm gear a (38) is also sleeved on the output shaft (37) of the motor. A worm gear b (39) meshes on the worm gear a (38). A worm gear (391) meshes on the worm gear b (39). A pulley a (392) is fixedly mounted on the outside of the worm gear (391). The groove (36) is adapted to the bolt (11).

4. The high-efficiency intelligent visual inspection device according to claim 1, characterized in that: The visual inspection mechanism (4) includes an infrared sensing device (41), a CCD visual imaging device (42), and an image information processing device (43) fixedly installed on the workbench (1).

5. The high-efficiency intelligent visual inspection device according to claim 1, characterized in that: The screening component (5) includes a qualified product storage cavity (51) fixedly installed on the workbench (1) and an unqualified product storage cavity (52) fixedly installed on the workbench (1). Both the qualified product storage cavity (51) and the unqualified product storage cavity (52) are equipped with air blowing devices (53).

6. The high-efficiency intelligent visual inspection device according to claim 1, characterized in that: The fixed shaft a (61), fixed shaft b (62) and cleaning shaft (63) are all inclined, and the fixed shaft b (62) cooperates with the groove (36).

7. The high-efficiency intelligent visual inspection device according to claim 3, characterized in that: The turntable (35) is made of a transparent material.

8. The detection method of a high-efficiency intelligent visual inspection device according to claim 4, characterized in that: Includes the following steps: Step 1: The bolt (11) is fed into the bolt surface treatment assembly (6) by the feeding assembly (2); Step 2: Use the bolt surface treatment component (6) to rinse and wash away impurities on the surface of the bolt (11), and then dry the surface moisture of the bolt (11). Step 3: The cleaned bolts (11) slide onto the turntable (35) for conveying; Step 4: The bolt (11) is imaged and positioned using an infrared sensor (41) and a CCD visual imaging device (42), and the data is sent to the image information processing device (43). Step 5: The analysis results are sent to the screening component (5) through the image information processing device (43), and the screening component (5) screens the qualified products and unqualified products.

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