Automatic screening equipment for surface defects of brake disc

Abstract

The utility model relates to the technical field of brake disc surface defect automatic screening, and discloses brake disc surface defect automatic screening equipment which comprises a base, a transmission part, a first detection part, a second detection part, an overturning structure and a screening part. The screening part comprises a connecting rod and a motor, the first detection part is located on the left side of the overturning structure, the height of a conveying belt of the first detection part is consistent with that of the left end of the overturning structure, the second detection part is provided with a rotating disc, and a lifting mechanism is arranged below the rotating disc. According to the equipment, detection of the brake disc is divided into different parts, all the parts are connected in series, the whole working process is clear and clear, the structure is perfect, the speed and progress of the whole conveying belt are not affected in the detection and screening process, the equipment can be perfectly integrated into a production line, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic screening of brake disc surface defects, in particular to an automatic screening device for brake disc surface defects. Background Technique

[0002] In the early stage, the surface inspection of brake discs mainly relied on manual visual inspection. Workers observed whether there were cracks on the surface of the brake disc by the naked eye and felt whether there were depressions on the surface by touching, so as to judge whether there were defects on the brake disc. This method was not only inefficient, but also easily affected by the subjectivity of human factors, resulting in unstable inspection quality. With the progress of industrial technology, some basic mechanical measuring tools began to be used for the surface inspection of brake discs. Although these tools improved the inspection accuracy, they still required manual operation and the inspection speed was relatively slow. In the 21st century, with the development of computer technology and image processing technology, automated inspection equipment began to emerge. These equipment could automatically identify and judge the defects on the surface of brake discs through image acquisition and processing. The development of this stage greatly improved the inspection efficiency and accuracy and reduced the influence of human factors.

[0003] Some existing automated inspection equipment, although having the ability to efficiently detect brake disc defects, often due to their unique structural design and complex detection mechanism, it is very difficult to directly integrate into the existing production line. These equipment usually require specific installation space, power supply and data transmission interfaces, and their operation and maintenance may also require specialized skills and knowledge. Therefore, manual intervention is still needed between the production line and the inspection equipment, which not only increases the labor cost, but also reduces the overall production efficiency. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an automatic screening device for brake disc surface defects, which has the advantages of fast detection speed, direct connection to the production line and no need for manual intervention, and solves the problem of low efficiency caused by the inability to access the production line.

[0006] (2) Technical Solutions

[0007] To achieve the purpose of fast detection speed, direct connection to the production line, and no need for manual intervention, the present utility model provides the following technical solutions: An automatic surface defect screening device for brake discs, comprising a base, a transmission part, a first detection part, a second detection part, a flipping structure, and a screening part. The transmission part includes a blocking structure, a bracket, a motor, and a conveyor belt. The first detection part includes a disc surface detection camera. The second detection part includes a bracket, a rotating disc, a gear, a disc surface detection camera, and an edge detection camera. The screening part includes a connecting rod and a motor. The first detection part is located on the left side of the flipping structure, and the height of the conveyor belt of the first detection part is the same as the height of the left end of the flipping structure. The second detection part is located on the right side of the flipping structure. The middle and front parts of both ends of the flipping structure are designed with hollow. The screening part is located at the rightmost end of the base. The rear end of the conveyor belt of the screening part is connected to the motor fixed at the bottom of the base through a connecting rod. There is a lifting mechanism under the rotating disc. The lifting mechanism includes a connecting shaft, a sleeve, and a gear. The connecting shaft is fixedly installed under the rotating disc. The sleeve and the connecting shaft are connected by sliding. A gear is fixedly installed under the connecting shaft.

[0008] Preferably, the opening of the blocking structure is larger at the front and smaller at the rear, and the blocking structure is located at the frontmost end of the transmission part.

[0009] Preferably, the corresponding base parts of the first detection part and the screening part are provided with hollows.

[0010] Preferably, both sides of the flipping structure are provided with limiting structures, there are reinforcing ribs in the middle, and both ends of the flipping structure are designed with central symmetry.

[0011] Preferably, when the rotating disc is in a non-detection state, the height of the disc surface is the same as the height of the conveyor belts on both sides.

[0012] Preferably, the front end rotating shaft of the conveyor belt of the flipping structure is fixedly connected to the bottom of the base through a bracket.

[0013] Preferably, there is a gear rack on the outside of the sleeve, and there is a retaining piece under the gear rack.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides an automatic surface defect screening device for brake discs, which has the following beneficial effects:

[0016] 1. The automatic surface defect screening device for brake discs separately detects each surface and edge. During the detection, the brake disc is located on the conveyor belt, which is usually made of black material. The black conveyor belt can absorb most of the light, thus effectively reducing the influence of external light sources on the detection camera. When the brake disc passes through the conveyor belt, the detection camera can capture clear and high-contrast images, enabling the easy identification of even the smallest defects on the surface of the brake disc, ensuring the accuracy and speed of the detection.

[0017] 2. The automatic surface defect screening device for brake discs, through the movement of the intermediate flipping structure, enables the brake disc to be sent into the flipping structure through the conveyor belt after the first surface detection for flipping, and then sent onto the subsequent conveyor belt for the next surface detection. If all detections pass, the brake disc will pass through the conveyor belt of the screening part and enter the subsequent processing. If one detection is unqualified, the motor of the screening part rotates and controls the rear part of the conveyor belt of the screening part to descend, and the unqualified brake disc will fall into the waste bin under the base. Subsequently, the motor of the screening part controls the connecting rod to lift the conveyor belt flat for the subsequent detection and screening work. The entire work process is clear and distinct, with a perfect structure. The detection and screening processes do not affect the speed and progress of the overall conveyor belt, enabling the device to be perfectly integrated into the production line and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is a schematic diagram of the flipping structure of the present utility model;

[0020] Figure 3 It is a schematic diagram of the lifting structure of the second detection part of the present utility model.

[0021] In the figure: 1 - base, 2 - conveyor belt, 3 - motor, 4 - blocking structure, 5 - bracket, 6 - surface detection camera, 7 - edge detection camera, 8 - flipping structure, 9 - rotating disk, 10 - connecting rod, 11 - gear, 12 - sleeve, 121 - gear rack, 122 - baffle, 13 - connecting shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0024] Please refer to Figure 1 , the automatic screening equipment for surface defects of brake discs, including a base 1, a transmission part, a detection part, a flipping structure 8, and a screening part. The transmission part includes a conveyor belt 2, a blocking structure 4, a bracket 5, and a motor 3. There are a total of five conveyor belts 2, and the color of the conveyor belt 2 is usually black. During the detection process of the detection camera, the black conveyor belt can absorb the external light source, is not easy to reflect light and transmit light, reduces the interference and influence on the detection camera, and improves the detection accuracy and efficiency. The base 1 under the conveyor belt 2 of the first detection part is designed with a hollow, and the conveyor belt 2 is inserted into the hollow part, reducing the height of the conveyor belt 2 so that its height is the same as the height of the left end of the flipping structure 8. After the brake disc passes through the first detection part, it can be smoothly sent into the flipping structure 8 through the conveyor belt 2. The blocking structure 4 is located at the leftmost end of the base 1 and is in the shape of an arc with an opening facing outwards. The right side of the blocking structure 1 gradually converges inwards. When the front brake disc is sent into this structure through the conveyor belt 2 for detection, the blocking structure 4 limits the axial movement of the brake disc, so that it can be located at the center position of the conveyor belt 2 after passing through the blocking structure 4, ensuring the normal progress of subsequent measurement and flipping operations. The conveyor belt 2 is connected to the motor through a rotating shaft. The conveyor belt 2 at the flipping structure 8 is fixedly connected to the bottom of the base 1 through a bracket 5. The width of this conveyor belt is relatively narrow and will not interfere with the operation of the flipping structure 8 while ensuring its normal operation. Its height is the same as the height of the right end of the flipping structure 8. When the brake disc in the flipping structure 8 is located at the right end after flipping, the conveyor belt 2 takes out the brake disc through movement and sends it into the second detection part. After being detected by the surface detection camera 6, the brake disc is sent to the rotating disc 9. The diameter of the rotating disc 9 is smaller than the outer diameter of the brake disc. The installation width between the conveyor belt 2 of the second detection part and the screening part is smaller than the outer diameter of the brake disc. After the lifting inspection by the rotating disc 9, the brake disc is put down and sent into the screening part by the power of the front and rear conveyor belts 2. The base part corresponding to the screening part is hollowly arranged. The rear part of the conveyor belt 2 of the screening part is connected to the motor 3 fixedly installed at the bottom of the base 1 through a connecting rod 10. The up and down movement of the rear end of the conveyor belt 2 is driven by the movement of the connecting rod 10 and the motor 3. If the brake disc is detected to be qualified, it will be normally sent out to enter the next process. If the detection is unqualified, the tail of the conveyor belt will drop, causing the brake disc to fall into the bottom and be discarded. The whole process does not require shutdown operation, ensuring the normal operation of the production line.

[0025] Please refer to Figure 2 Figure 2 , a flipping structure, is connected to the motor 3 through a rotating shaft in the middle. There are reinforcing ribs in the middle of the flipping structure 8, and the middle and front parts at both ends are designed with hollowing. This design enables it not to interfere with the middle conveyor belt 2 during operation. The flipping structure 8 runs clockwise driven by the motor 3. When the brake disc is fed into the flipping structure from the left end, the motor drives it to rotate 180 degrees, and the brake disc is located at the right end. The height of the conveyor belt is the same as the height of the right end of the flipping structure. At this time, most of the brake disc located at the right end falls on the conveyor belt. The conveyor belt starts to rotate to take out the brake disc and send it to the next process. There are inclined stoppers at the positions near the middle at both ends of the flipping structure, so that the brake disc is fixed in the middle of the rotating structure during the rotation process and will not slide off from both sides.

[0026] Please refer to Figure 3 Figure 3 , a lifting structure with a rotating disc is under the base. This structure is driven by two motors 3 fixedly installed at the bottom of the base. A connecting shaft 13 is fixedly connected below the rotating disc 9. A gear 11 is fixedly connected to the bottom end of the connecting shaft 13. There is a sleeve 12 slidably connected to the outside of the connecting shaft 13. There is an inwardly concave gear rack 121 on the outside of the sleeve 12. A retaining piece 122 is fixedly installed at the bottom of the gear rack 121. The gear 11 on the connecting shaft 13 is in a separated state from the motor gear in the non-detection state. During detection, the motor drives the sleeve and the rotating disc to rise. At this time, the gear at the tail of the connecting shaft starts to engage and transmit power.

[0027] Working principle: The brake disc enters the device from the left. When passing through the blocking structure 4, the brake disc with a relatively off-center position moves towards the center of the conveyor belt 2 under the limitation of the blocking structure 4, so that it is located at the center position of the conveyor belt before reaching the first detection part. The conveyor belt sends the brake disc into the first detection part. After the disc surface detection camera 6 recognizes the brake disc, the conveyor belt stops running. The disc surface detection camera 6 takes pictures of the brake disc for recognition. After taking pictures, the conveyor belt 2 continues to run and sends the brake disc to the left end of the flipping structure 8. The motor 3 drives the flipping structure 8 to rotate clockwise and stops after rotating 180 degrees. At this time, the brake disc is on the conveyor belt 2 below the right end of the rotating structure 8. The conveyor belt 2 runs to take out the brake disc and send it into the second detection part. After the disc surface detection camera 6 takes pictures and detects, the brake disc is sent forward onto the rotating disc 9. When the center of the brake disc coincides with the center of the rotating disc 9, the conveyor belt 2 stops moving. There is a lifting structure below the rotating disc 9, including a sleeve 12, a connecting shaft 13, gears 11 and a motor 3. Through the coordinated action of the two motors, first, the sleeve 12 and the rotating disc 9 are lifted upward through gear transmission. After lifting in place, the gear 11 at the bottom of the connecting shaft 13 meshes with the gear 11 on another motor. The motor 3 rotates to drive the gear 11 to operate, and the rotating disc 9 rotates together with the brake disc above. During the rotation process, the two edge detection cameras 7 respectively take pictures and inspect the inner edge and outer edge of the brake disc. After the inspection is completed, the rotating disc 9 stops rotating. The motor 3 controls the gear 11 to drive the sleeve 12 to descend. The conveyor belts 2 in the second detection part and the screening part rotate together to send the brake disc into the screening part. After entering the screening part, if the inspection is qualified, the brake disc will enter the next process through the screening part. If the inspection is unqualified, the motor 3 located below the screening part will drive the connecting rod 10 to lower the tail of the conveyor belt, and the unqualified brake disc will fall along the conveyor belt into the waste under the base 1.

[0028] In summary, the automatic screening device for surface defects of brake discs separately detects each surface and edge. During the detection, the brake disc is located on the conveyor belt. The conveyor belt 2 is usually made of black material. The black conveyor belt can absorb most of the light, thus effectively reducing the influence of external light sources on the detection camera. When the brake disc passes through the conveyor belt, the detection camera can capture clear and high-contrast images, which enables the detection of even minor defects on the surface of the brake disc and ensures the accuracy and speed of the detection. Through the movement of the intermediate flipping structure 8, the brake disc is sent into the flipping structure 8 through the conveyor belt after the first surface detection for flipping, and after flipping, it is sent onto the subsequent conveyor belt 2 for the next surface detection. If all detections pass, the brake disc will pass through the conveyor belt 2 of the screening part and enter the subsequent processing. If one detection is unqualified, the motor 3 of the screening part rotates and controls the rear part of the conveyor belt 2 of the screening part to descend, and the unqualified brake disc will fall under the base 1 for scrapping. Subsequently, the motor of the screening part controls the connecting rod 10 to lift the conveyor belt 2 flat for subsequent detection and screening work. The entire work process is clear and distinct, the structure is perfect, and the detection and screening processes do not affect the speed and progress of the overall conveyor belt, enabling the device to be perfectly integrated into the production line and improving production efficiency.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic screening device for brake disc surface defects, comprising a base (1), a transmission part, a first detection part, a second detection part, a turning structure (8) and a screening part, characterized in that: The transmission part comprises a blocking structure (4), a bracket (5), a motor (3) and a conveyor belt (2); the first detection part comprises a disk surface detection camera (6) and a bracket (5); the second detection part comprises a rotating disk (9), a disk surface detection camera (6) and an edge detection camera (7); the screening part comprises a connecting rod (10) and a motor (3); the first detection part is located on the left side of the flip structure (8); the height of the conveyor belt (2) of the first detection part is consistent with the height of the left end of the flip structure (8); the second detection part is located on the right side of the flip structure (8); The middle and front parts of both ends of the structure (8) are hollowed out. The screening part is located at the rightmost end of the base (1). The rear end of the conveyor belt (2) of the screening part is connected to the motor (3) fixed to the bottom of the base (1) through a connecting rod (10). A lifting mechanism is provided below the rotating disk (9). The lifting mechanism includes a connecting shaft (13), a sleeve (12) and a gear (11). The connecting shaft (13) is fixedly installed below the rotating disk (9). A sliding connection is adopted between the sleeve (12) and the connecting shaft (13). A gear (11) is fixedly installed below the connecting shaft (13).

2. The automatic screening equipment for brake disc surface defects according to claim 1 is characterized by: The blocking structure (4) has an opening that is larger at the front and smaller at the rear, and the blocking structure (4) is located at the front end of the transmission part.

3. The automatic screening device for brake disc surface defects according to claim 1 is characterized by: The base (1) parts corresponding to the first detection part and the screening part are hollowed out.

4. The automatic screening equipment for brake disc surface defects according to claim 1 is characterized by: The flip structure (8) has limit structures on both sides and reinforcement ribs in the middle. The two ends of the flip structure (8) are designed to be centrally symmetrical.

5. The automatic screening device for brake disc surface defects according to claim 1 is characterized by: When the rotating disk (9) is in a non-detection state, the height of the disk surface is consistent with the height of the conveyor belts (2) on both sides.

6. The automatic screening equipment for brake disc surface defects according to claim 1 is characterized by: The front end rotating shaft of the conveyor belt (2) of the turnover structure (8) is fixedly connected to the bottom of the base (1) via a bracket (5).

7. The automatic screening equipment for brake disc surface defects according to claim 1 is characterized by: A gear bar (121) is disposed on the outside of the sleeve (12), and a blocking piece (122) is disposed below the gear bar (121).

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