Visual inspection device for change wheel set

Abstract

The utility model provides a visual inspection device for a change wheel set, and relates to the technical field of visual inspection, the visual inspection device comprises a conveying belt, a CCD camera and a defective product belt, a plurality of groups of limiting assemblies are arranged on the conveying belt at equal intervals, a placing box is placed on each group of limiting assemblies, a mounting rack is erected on the conveying belt, and a mounting plate is arranged on the mounting rack; according to the device, industrial visual detection of the change wheel can be realized, the quality qualification condition of the change wheel can be known by adopting the CCD camera to shoot pictures in real time and comparing the pictures, meanwhile, the change wheel can accurately move to a visual shooting area to complete detection, manual visual checking is not needed, the labor intensity is remarkably reduced, the condition of missing detection is avoided, and the detection efficiency is improved. When unqualified change wheels are detected, defective products can be automatically removed and transferred to the next process, manual intervention is not needed, and the automation degree is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of visual detection, in particular to a visual detection device for a speed-changing wheel set. Background Art

[0002] A major component of a motorcycle is a gearshift wheel set, and the production and assembly of a gearshift wheel set often involves multiple processes, one of which is visual inspection, that is, whether the multiple gearshift wheels that make up the gearshift wheel set are of qualified quality. If unqualified gearshift wheels appear, they need to be manually removed in a timely manner to avoid defective gearshift wheels after subsequent assembly. Currently, human eyes are generally used to check whether the appearance of the gearshift wheels has defects; however, the use of manual visual inspection not only has low inspection efficiency, but also consumes a lot of labor, and there is a phenomenon of missed inspections due to manual fatigue.

[0003] Announcement No. CN219915357U proposes a visual inspection transmission line. Through the coordinated design of various structures, the industrial camera can be adjusted from two directions, thereby realizing the adjustment of the inspection position to meet the inspection needs of different workpieces; however, the device cannot automatically reject unqualified parts after detecting them. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a visual inspection device for a speed-changing wheel set.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A visual inspection device for a variable-speed wheel set comprises a conveyor belt, a CCD camera and a defective belt, wherein a plurality of groups of limit assemblies are equidistantly arranged on the conveyor belt, a placement box is placed on each group of limit assemblies, a mounting frame is mounted on the conveyor belt, a mounting plate is arranged on the mounting frame, a CCD camera and telescopic assemblies symmetrically distributed about the CCD camera are arranged on the mounting plate, the telescopic assembly is connected to an electromagnetic plate, a rectangular hole having a size larger than that of the CCD camera is opened on the electromagnetic plate, a defective belt is arranged on one side of the conveyor belt, a telescopic flip assembly is arranged on the defective belt, the telescopic flip assembly is connected to a placement plate, and a through hole allowing the placement plate to pass through is opened on one side of the mounting frame.

[0007] This device can realize industrial visual inspection of the speed wheel. The quality of the speed wheel can be known by using a CCD camera to capture the picture in real time and performing image comparison. At the same time, the speed wheel can accurately move to the visual shooting area to complete the inspection. No manual visual inspection is required, which significantly reduces labor intensity and avoids missed inspections. When an unqualified speed wheel is detected, the defective products can be automatically removed and transferred to the next process without manual intervention, and the degree of automation is further improved.

[0008] Furthermore, each group of the limiting components includes two L-shaped limiting blocks that are diagonally distributed, and the two L-shaped limiting blocks are in contact with four sides of the placement box respectively.

[0009] The above scheme places the speed change wheel in the placement box and limits the placement box before transportation, which can ensure that the speed change wheel moves exactly into the effective shooting area of ​​the CCD camera, avoiding large position deviation of the speed change wheel during transportation and thus incomplete visual shooting image.

[0010] Furthermore, the telescopic flip assembly includes an electric cylinder and a servo motor. The defective belt is provided with an electric cylinder with a height difference of 30-50CM therefrom. The electric cylinder is connected to the servo motor, and the servo motor is connected to a placement plate with an L-shaped main body.

[0011] The above scheme realizes the automatic transfer of the unqualified speed-changing wheel from the placement box to the defective belt by cooperating with the on-off power of the electromagnetic plate through the telescopic flip assembly.

[0012] Furthermore, the placement box is divided into a plurality of placement areas by longitudinal rubber strips and transverse rubber strips, and a three-axis device is arranged on the mounting frame, and the three-axis device is connected to a mounting plate.

[0013] The above scheme can divide the storage box into several storage areas through the longitudinal rubber strips and the transverse rubber strips to store multiple speed change wheels without the speed change wheels contacting each other. Combined with the movement of the three-axis device, the multiple speed change wheels in the multiple storage areas can be visually photographed and inspected in turn.

[0014] Furthermore, a plurality of buffer strips are arranged on the defective belt.

[0015] The above scheme can reduce the damage to the defective belt during the process of the speed change wheel falling from the placement plate to the defective belt through the buffer strip, thereby extending the service life of the defective belt.

[0016] Furthermore, one side of the initial end of the conveyor belt is equipped with a six-degree-of-freedom robotic arm.

[0017] The above solution realizes automatic and stable placement of the placement box onto the limiting component through a six-degree-of-freedom robotic arm, further reducing the labor intensity of manual intervention.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] Compared with the existing technology, the device can realize industrial visual inspection of the speed wheel. The quality of the speed wheel can be known by using a CCD camera to capture the picture in real time and performing image comparison. At the same time, the speed wheel can accurately move to the visual shooting area to complete the inspection. No manual visual inspection is required, which significantly reduces labor intensity and will not miss inspections. When an unqualified speed wheel is detected, the defective products can be automatically removed and transferred to the next process without manual intervention, and the degree of automation is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a schematic diagram of the longitudinal rubber strip and the transverse rubber strip;

[0022] Figure 3 This is a schematic diagram of CCD camera installation;

[0023] Figure 4 It is a schematic diagram of a rectangular hole;

[0024] Figure 5 It is a schematic diagram of the movement of the placement plate;

[0025] Reference numerals:

[0026] 1. Conveyor belt; 11. L-shaped limit block; 2. Placement box; 21. Longitudinal rubber strip; 22. Horizontal rubber strip; 3. Mounting frame; 31. Three-axis equipment; 32. Mounting plate; 33. CCD camera; 34. Telescopic assembly; 35. Electromagnetic plate; 36. Rectangular hole; 37. Through hole; 4. Defective belt; 41. Electric cylinder; 42. Servo motor; 43. Placement plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0028] like Figures 1 to 5As shown, a visual inspection device for a variable speed wheel set includes a conveyor belt 1, a CCD camera 33 and a defective belt 4. A plurality of groups of limit assemblies are equidistantly arranged on the conveyor belt 1, and a placement box 2 is placed on each group of limit assemblies. A mounting frame 3 is mounted on the conveyor belt 1, and a mounting plate 32 is arranged on the mounting frame 3. A CCD camera 33 and a telescopic assembly 34 symmetrically distributed about the CCD camera 33 are arranged on the mounting plate 32. The telescopic assembly 34 can specifically adopt an electric push rod. The telescopic assembly 34 is connected to an electromagnetic plate 35. A rectangular hole 36 whose size is larger than the CCD camera 33 is opened in the middle of the electromagnetic plate 35. A defective belt 4 is arranged on one side of the conveyor belt 1, and a telescopic flip assembly is arranged on the defective belt 4. The telescopic flip assembly is connected to a placement plate 43, and a through hole 37 allowing the placement plate 43 to pass through is opened on one side of the mounting frame 3.

[0029] Further refinement of the embodiment of the present utility model is as follows: Figure 1 and Figure 2 As shown, each group of limiting components includes two L-shaped limiting blocks 11 distributed diagonally, and the two L-shaped limiting blocks 11 are in contact with four sides of the placement box 2 respectively.

[0030] Further refinement of the embodiment of the present utility model is as follows: Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the telescopic flip assembly includes an electric cylinder 41 and a servo motor 42. The defective belt 4 is provided with an electric cylinder 41 with a height difference of 30-50CM therefrom. The electric cylinder 41 is connected to the servo motor 42, and the servo motor 42 is connected to a placement plate 43 with an L-shaped main body.

[0031] In order to further optimize the embodiment of the utility model, a six-degree-of-freedom robot is provided at one side of the initial end of the conveyor belt 1. The six-degree-of-freedom robot is not shown in the figure and belongs to the principle of the prior art and will not be described.

[0032] Further optimization of the embodiment of the utility model also includes a voice prompter arranged on the defective belt 4. The voice prompter is not shown in the figure. The voice prompter is electrically connected to the controller. When a defective speed change wheel appears in the visual image comparison in the controller, the voice prompter at the end area of ​​the defective belt will voice broadcast "defective products appear", and then the operator of the next repair process can immediately know and arrive at the post in time to deal with it.

[0033] It should be noted that the conveyor belt 1, the CCD camera 33, the defective belt 4, the telescopic assembly 34, the electromagnetic plate 35, the electric cylinder 41 and the servo motor 42 are all electrically connected to the controller, which is not shown in the figure.

[0034] The workflow of this utility model:

[0035] First, a placement box 2 is stably clamped and placed between one group of limit components by a six-degree-of-freedom robotic arm (similarly, subsequent placement boxes 2 can be placed between multiple groups of limit components in sequence). The speed wheel has been initially placed in the placement box 2, and the speed wheel is not shown in the figure. Placing the speed wheel in the placement box 2 and limiting the placement box 2 before transmission can ensure that the speed wheel moves just within the effective shooting area of ​​the CCD camera 33, avoiding a large positional offset of the speed wheel during transportation and thus incomplete visual image capture. As the conveyor belt 1 is transported at uniform intervals, the placement box 2 at the front moves to the bottom of the mounting frame 3 and then stops, and then the CCD camera 33 can visually capture the speed wheel in the placement box 2. After shooting, the image is transmitted to the controller and compared frame by frame with the pre-input qualified speed wheel image.

[0036] If the quality of the speed-changing wheel is qualified, the conveyor belt 1 resumes operation, and the next placement box 2 moves to the bottom of the CCD camera 33 to start a new round of visual inspection process. The speed-changing wheel that has completed the visual inspection can continue to move along the conveyor belt 1 to the next area, and then the subsequent assembly process of the speed-changing wheel group can be carried out;

[0037] If the quality of the speed wheel is unqualified, the conveyor belt 1 will continue to stop working. At this time, the telescopic component 34 drives the electromagnetic plate 35 to move and approach the speed wheel (in the initial state, the electromagnetic plate 35 is below the CCD camera 34), and then adsorbs it on it. After the adsorption is completed, the telescopic component 34 drives the speed wheel to rise so as not to affect the subsequent horizontal movement of the placement plate 43. Then the controller controls the electric cylinder 41 to extend so that the placement plate 43 passes through the through hole 37 and moves to the bottom of the speed wheel. At this time, the servo motor 42 does not work, and then the controller controls the electromagnetic plate 35 to cut off the power, and then the unqualified speed wheel can fall on the placement plate 43. The area is large, so the speed change wheel will not be separated from the placement plate 43. Then the electric cylinder 41 drives the placement plate 43 to retract to the top of the defective belt 4. When the placement plate 43 is above the defective belt 4, the electric cylinder 41 stops working, and then the controller controls the servo motor 42 to work so that the placement plate 43 deflects. When the placement plate 43 becomes a vertical state, the defective speed change wheel can be automatically transferred to the defective belt 4 and then transported to the next process for processing. At this time, the conveyor belt 1 resumes operation and the visual inspection process of the next speed change wheel can be started. It should be noted that the placement plate 43 will not hinder the defective belt 4 during the flipping process.

[0038] Compared with the prior art, the device can realize industrial visual inspection of the speed wheel. The quality of the speed wheel can be known by using a CCD camera 33 to capture the picture in real time and performing image comparison. At the same time, the speed wheel can be accurately moved to the visual shooting area to complete the inspection. No manual visual inspection is required, which significantly reduces labor intensity and avoids missed inspections. When an unqualified speed wheel is detected, the defective products can be automatically removed and transferred to the next process without manual intervention, and the degree of automation is further improved.

[0039] In some embodiments, Figure 2 As shown, the placement box 2 is divided into several placement areas by the longitudinal rubber strips 21 and the transverse rubber strips 22, and a three-axis device 31 is arranged on the mounting frame 3, and the three-axis device 31 is connected to the mounting plate 32; this implementation can divide the placement box 2 into several placement areas through the longitudinal rubber strips 21 and the transverse rubber strips 22 to store multiple speed change wheels without the speed change wheels contacting each other, and then cooperate with the movement of the three-axis device 31 to perform visual shooting detection process on the speed change wheels in multiple placement areas in turn.

[0040] In other embodiments, a plurality of buffer strips are provided on the defective belt 4, which are not shown in the figure. This embodiment can reduce the damage to the defective belt 4 during the process of the speed change wheel falling from the placement plate 43 to the defective belt 4 through the buffer strips, thereby extending the service life of the defective belt 4.

[0041] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A visual inspection device for a variable speed wheel set, comprising a conveyor belt (1), a CCD camera (33) and a defective belt (4), characterized in that: A plurality of groups of limit assemblies are equidistantly arranged on the conveyor belt (1), a placement box (2) is placed on each group of limit assemblies, a mounting frame (3) is mounted on the conveyor belt (1), a mounting plate (32) is arranged on the mounting frame (3), a CCD camera (33) and telescopic assemblies (34) symmetrically distributed about the CCD camera (33) are arranged on the mounting plate (32), the telescopic assemblies (34) are connected to an electromagnetic plate (35), a rectangular hole (36) having a size larger than that of the CCD camera (33) is opened on the electromagnetic plate (35), a defective belt (4) is arranged on one side of the conveyor belt (1), a telescopic flip assembly is arranged on the defective belt (4), the telescopic flip assembly is connected to a placement plate (43), and a through hole (37) for allowing the placement plate (43) to pass through is opened on one side of the mounting frame (3).

2. A visual inspection device for a speed-changing wheel set according to claim 1, characterized in that: Each group of the limiting components comprises two L-shaped limiting blocks (11) distributed diagonally, and the two L-shaped limiting blocks (11) are respectively in contact with four sides of the placement box (2).

3. The visual inspection device for a speed-changing wheel set according to claim 1, characterized in that: The telescopic flip assembly comprises an electric cylinder (41) and a servo motor (42); the defective belt (4) is provided with an electric cylinder (41) with a height difference of 30-50 cm from the defective belt (4); the electric cylinder (41) is connected to the servo motor (42); and the servo motor (42) is connected to a placement plate (43) with an L-shaped main body.

4. The visual inspection device for a speed-changing wheel set according to claim 1, characterized in that: The placement box (2) is divided into a plurality of placement areas by longitudinal rubber strips (21) and transverse rubber strips (22); a three-axis device (31) is arranged on the mounting frame (3); and the three-axis device (31) is connected to a mounting plate (32).

5. The visual inspection device for a speed-changing wheel set according to claim 1, characterized in that: A plurality of buffer strips are arranged on the defective belt (4).

6. The visual inspection device for a speed-changing wheel set according to claim 1, characterized in that: One side of the initial end of the conveyor belt (1) is equipped with a six-degree-of-freedom mechanical arm.

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