Machine vision detection device for improving bolt and nut detection efficiency

Abstract

A machine vision detection device capable of improving bolt and nut detection efficiency relates to the technical field of bolt and nut production detection and comprises a base, a conveying belt is arranged on the upper portion of the base in a transmission mode, a rotating support is rotationally arranged on the upper side of the base, and an adjusting screw is connected to the middle of the top of the rotating support through threads. A positioning sleeve sleeves the adjusting screw rod, an image acquisition module is fixedly arranged at the lower end of the adjusting screw rod, a lamp panel is fixedly arranged on the outer side of the image acquisition module, LED lamp beads are uniformly and fixedly arranged on the lamp panel, a control box is fixedly arranged on the edge side of the upper part of the base, and the device further comprises an image transmission module, an image processing module, an alarm module, a control module and a power supply. Compared with traditional manual visual detection, the machine visual detection device can automatically and rapidly complete detection tasks of bolts and nuts, the detection efficiency is greatly improved, the large-scale and high-efficiency production requirements in modern industrial production can be met, and the production bottleneck and delay are effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt and nut production detection, in particular to a machine vision detection device for improving the detection efficiency of bolts and nuts. Background Art

[0002] In industrial production, bolts and nuts are indispensable connectors, and their quality is of great importance. They are the key to ensuring the stable, safe and reliable operation of mechanical equipment, structures, etc. Whether in the field of automobile manufacturing, aerospace, heavy machinery or construction, bolts and nuts undertake vital connection and fixing tasks. However, with the rapid development of industrial production and the increase in product complexity, the quality requirements for connectors such as bolts and nuts are becoming higher and higher.

[0003] Traditional bolt and nut inspection methods mainly rely on manual visual inspection. Although this method is simple and easy to use, it has exposed many problems and shortcomings in practical applications. First of all, manual visual inspection is inefficient and cannot meet the needs of large-scale, high-efficiency industrial production. With the acceleration of production lines and the increase in output, the speed and efficiency of manual inspection are far behind the production rhythm, which can easily cause production bottlenecks and delays.

[0004] Secondly, manual visual inspection is easily affected by human factors, making it difficult to ensure the accuracy and consistency of the test results. Due to differences in experience, skills, vision and other factors among each inspector, misjudgment and missed inspections may occur during the inspection process, thus affecting the quality and reliability of the product. In addition, manual inspection is also easily affected by environmental factors such as light and dust, which further reduces the accuracy and stability of the inspection. Utility Model Content

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a machine vision inspection device for improving the inspection efficiency of bolts and nuts, aiming to solve the problems in the prior art of low inspection efficiency, poor accuracy, easy misjudgment and great influence by environmental factors.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A machine vision inspection device for improving the inspection efficiency of bolts and nuts, characterized in that it includes a base, a conveyor belt is arranged on the upper transmission of the base, a rotating bracket is rotatably arranged on the upper side of the base, the top middle position of the rotating bracket is connected to an adjusting screw by a thread, a positioning sleeve is sleeved on the adjusting screw, an image acquisition module is fixedly arranged on the lower end of the adjusting screw, a light board is fixedly arranged on the outer side of the image acquisition module, LED lamp beads are evenly fixedly arranged on the light board, a control box is fixedly arranged on the upper side of the base, and also includes an image transmission module, an image processing module, an alarm module, a control module and a power supply, the LED lamp beads, image acquisition module, image processing module, alarm module and control module are electrically connected to the power supply, the image acquisition module is electrically connected to the image processing module through the image transmission module, the LED lamp beads, image acquisition module, image processing module and alarm module are electrically connected to the control module, and the image processing module, alarm module, control module and power supply are arranged inside the control box.

[0008] A preferred technical solution is that a positioning groove is longitudinally arranged in the middle position of the conveyor belt, and a guide rod is fixedly arranged on the upper side of the base and in front of the rotating bracket. A material box that slides up and down is arranged on the guide rod, and springs are arranged between the material box and the base and on the outside of the guide rod. A vibration motor is arranged on the material box, and a material leakage port is arranged at the bottom of the material box, and the material leakage port is directly opposite to the top of the positioning groove.

[0009] According to a preferred technical solution, a baffle which is adjustable up and down is arranged on the base and between the material box and the rotating bracket.

[0010] According to a preferred technical solution, the side surface of the material box is in an inverted cone shape.

[0011] According to a preferred technical solution, the image acquisition module includes a high-resolution CCD camera and a lens matching the CCD camera.

[0012] According to a preferred technical solution, the outer side of the positioning sleeve is provided with anti-slip grooves.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model improves detection efficiency: compared with traditional manual visual inspection, the machine vision inspection device can automatically and quickly complete the inspection task of bolts and nuts, greatly improving the inspection efficiency. This high-efficiency inspection method can meet the large-scale and high-efficiency production needs in modern industrial production, and effectively avoid production bottlenecks and delays.

[0015] Improve detection accuracy: Machine vision detection devices can accurately capture the image information of bolts and nuts through high-resolution industrial cameras, image processing algorithms and intelligent recognition technology, and perform precise analysis and judgment. Compared with misjudgments and missed inspections that may be caused by human factors, machine vision detection devices have higher accuracy and stability, ensuring the consistency and reliability of product quality.

[0016] Reduce the impact of human factors: Traditional manual inspection is easily affected by factors such as the experience, skills, and vision of the inspectors, while machine vision inspection devices are completely based on standardized image processing algorithms and intelligent recognition technology and are not affected by human factors. This inspection method without human intervention greatly improves the objectivity and fairness of the inspection results.

[0017] Strong adaptability: The machine vision inspection device can adapt to the inspection needs of bolts and nuts of different sizes, shapes and materials. Whether it is a common standard part or a specially customized connector, accurate inspection can be achieved by adjusting parameters and algorithms. This flexibility makes the device highly versatile and adaptable, and can meet the inspection needs of different industries and different products.

[0018] Easy to operate and maintain: The device also has fault self-diagnosis and maintenance prompt functions, which makes it easy to find and solve problems in time, reducing maintenance costs and time.

[0019] Improve product quality and safety: Through accurate and efficient testing, the machine vision inspection device can promptly detect quality problems of bolts, nuts and other connectors, and prevent unqualified products from entering the market. This not only improves the overall quality level of the product, but also enhances the safety and reliability of the product, and protects the interests of consumers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is the control block diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the material box structure of the utility model;

[0023] In the figure: base 1; conveyor belt 2; rotating bracket 3; adjusting screw 4; positioning sleeve 5; image acquisition module 6; light board 7; LED lamp beads 8; image transmission module 9; image processing module 10; alarm module 11; control box 12; control module 13; power supply 14; positioning groove 15; guide rod 16; material box 17; spring 18; leakage port 19; baffle 20; vibration motor 21. DETAILED DESCRIPTION

[0024] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] like Figure 1 and 2 As shown, a machine vision inspection device for improving the inspection efficiency of bolts and nuts includes a base 1, a conveyor belt 2 is arranged on the upper part of the base 1, a rotating bracket 3 is rotatably arranged on the upper side of the base 1, an adjusting screw 4 is connected to the top middle position of the rotating bracket 3 by a thread, a positioning sleeve 5 is sleeved on the adjusting screw 4, an image acquisition module 6 is fixedly arranged on the lower end of the adjusting screw 4, a light board 7 is fixedly arranged on the outer side of the image acquisition module 6, LED lamp beads 8 are evenly fixedly arranged on the light board 7, a control box 12 is fixedly arranged on the upper side of the base 1, and an image transmission Module 9, image processing module 10, alarm module 11, control module 13 and power supply 14, LED lamp beads 8, image acquisition module 6, image processing module 10, alarm module 11 and control module 13 are electrically connected to the power supply 14, the image acquisition module 6 is electrically connected to the image processing module 10 through the image transmission module 9, the LED lamp beads 8, image acquisition module 6, image processing module 10 and alarm module 11 are electrically connected to the control module 13, and the image processing module 10, alarm module 11, control module 13 and power supply 14 are arranged inside the control box 12.

[0027] like Figure 1 and 3 As shown, a positioning groove 15 is longitudinally arranged in the middle of the conveyor belt 2. A guide rod 16 is fixedly arranged on the upper side of the base 1 and in front of the rotating bracket 3. A material box 17 that slides up and down is arranged on the guide rod 16. A spring 18 is arranged between the material box 17 and the base 1 and on the outside of the guide rod 16. A vibration motor 21 is arranged on the material box 17. A material leakage port 19 is arranged at the bottom of the material box 17, and the material leakage port 19 is directly opposite to the top of the positioning groove 15. A baffle 20 that can be adjusted up and down is arranged on the base 1 and between the material box 17 and the rotating bracket 3. The side of the material box 17 is inverted cone shape. The image acquisition module 6 includes a high-resolution CCD camera and a lens matched with the CCD camera. The outer side of the positioning sleeve 5 is provided with anti-slip grooves.

[0028] like Figure 1-3As shown, the frame fixing base 1 of the utility model is used to fix and support the entire detection mechanism; the image acquisition module 6 is used to capture the image information of the internal gasket; the LED lamp beads are arranged around the lens of the image acquisition module 6 to provide a uniform and stable light source; the image transmission module 9 includes a data line, connecting the image acquisition module 6 and the image processing module 10, and is used to transmit image information in real time; the image processing module 10 receives the image information sent by the image transmission module 9 and performs analysis and processing; the rotating bracket 3 and the adjusting screw 4 are used to adjust the position and angle of the image acquisition module 6 according to the information of the image processing module 10; the alarm module 11 includes a sound generator and an indicator light, which is installed in a conspicuous position of the control box 12. When the image processing module 10 detects that the bolt or nut is abnormal, the alarm module 11 is triggered to send an audible and visual alarm signal. The operator places the bolts and nuts to be detected in the material box 17, and the vibration motor 21 vibrates, and falls into the positioning groove 15 on the conveyor belt 2 through the leakage port 19, and the conveyor belt 2 conveys the bolts and nuts along with the positioning groove 15 to the detection area. By controlling the gap between the bottom of the material box 17 and the positioning groove 15, as well as the height of the baffle, the bolts and nuts can be accurately positioned to ensure that the positions of the bolts and nuts detected each time are consistent. The image acquisition device 6 captures the image information of the bolts and nuts and transmits the image information to the image processing module 10. The image processing module 10 processes and analyzes the image to determine whether the quality of the bolts and nuts meets the requirements. If there is a quality problem, the alarm device sends an audible and visual alarm signal to remind the operator to deal with it in time.

[0029] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A machine vision inspection device for improving the inspection efficiency of bolts and nuts, characterized by: The invention comprises a base (1), wherein a conveyor belt (2) is provided on the upper part of the base (1), a rotating bracket (3) is rotatably provided on the upper side of the base (1), an adjusting screw (4) is connected to the top middle position of the rotating bracket (3) by a thread, a positioning sleeve (5) is sleeved on the adjusting screw (4), an image acquisition module (6) is fixedly provided on the lower end of the adjusting screw (4), a light board (7) is fixedly provided on the outer side of the image acquisition module (6), LED lamp beads (8) are evenly fixedly provided on the light board (7), a control box (12) is fixedly provided on the upper side of the base (1), and further comprises an image transmission module (9), an image processing module (10), An alarm module (11), a control module (13) and a power supply (14); the LED lamp bead (8), the image acquisition module (6), the image processing module (10), the alarm module (11) and the control module (13) are electrically connected to the power supply (14); the image acquisition module (6) is electrically connected to the image processing module (10) via an image transmission module (9); the LED lamp bead (8), the image acquisition module (6), the image processing module (10) and the alarm module (11) are electrically connected to the control module (13); and the image processing module (10), the alarm module (11), the control module (13) and the power supply (14) are arranged inside a control box (12).

2. A machine vision inspection device for improving the inspection efficiency of bolts and nuts according to claim 1, characterized in that: A positioning groove (15) is longitudinally arranged in the middle of the conveyor belt (2); a guide rod (16) is fixedly arranged on the upper side of the base (1) and in front of the rotating bracket (3) of the positioning groove (15); a material box (17) that slides up and down is arranged on the guide rod (16); a spring (18) is arranged between the material box (17) and the base (1) and on the outside of the guide rod (16); a vibration motor (21) is arranged on the material box (17); a material leakage port (19) is arranged at the bottom of the material box (17); and the material leakage port (19) is directly opposite to the top of the positioning groove (15).

3. A machine vision inspection device for improving the inspection efficiency of bolts and nuts according to claim 2, characterized in that: A baffle (20) which is adjustable up and down is arranged on the base (1) and is located between the material box (17) and the rotating bracket (3).

4. A machine vision inspection device for improving the inspection efficiency of bolts and nuts according to claim 2, characterized in that: The side surface of the material box (17) is in an inverted cone shape.

5. A machine vision inspection device for improving the inspection efficiency of bolts and nuts according to claim 1, characterized in that: The image acquisition module (6) comprises a high-resolution CCD camera and a lens matched with the CCD camera.

6. A machine vision inspection device for improving the inspection efficiency of bolts and nuts according to claim 1, characterized in that: The outer side of the positioning sleeve (5) is provided with anti-slip grooves.

Images