CN211726598U

CN211726598U - Brake disc appearance imperfections detection device

Info

Publication number: CN211726598U
Application number: CN202021989788.0U
Authority: CN
Inventors: 王凯; 沈宗辉; 吴强; 谢文琪
Original assignee: Chengdu Zhuoshi Weijing Technology Co ltd
Current assignee: Chengdu Zhuoshi Weijing Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-10-23
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses a brake disc appearance defect detection device, which comprises a feeding roller way (9), a discharging roller way (12), a detection channel and a detection host machine; the upper surface phase taking assembly comprises a rotatable detection table (1) for placing a brake disc to be detected and a first camera assembly (2) for completing upper surface and side surface phase taking in the rotation process of the brake disc to be detected; the lower surface phase taking assembly comprises a multi-axis manipulator (3) which is used for taking down the brake disc to be detected from the detection table (1) and completing rotation, and a second camera assembly (4) which is used for completing phase taking of the lower surface of the brake disc in the rotation process of the brake disc to be detected. The utility model discloses a combination of linear camera and laser camera detects brake disc appearance imperfections, has realized automatic on-line measuring, and the testing process is reliable and stable, does not receive the influence of artificial subjective factor and environmental factor, and efficient, the detection precision is high and the product control standard is unified, can fully satisfy actual production's needs.

Description

Brake disc appearance imperfections detection device

Technical Field

The utility model relates to a brake disc appearance imperfections detection device.

Background

The automobile brake disc serving as a core safety part in automobile parts has a crucial influence on the safe use of the automobile. The automobile brake disc mainly comprises a solid disc and a hollow disc, and the current automobile brake disc is mainly produced and manufactured in a casting mode. Due to the technical characteristics of the casting industry, the appearance of a cast product usually has the defects of sand sticking, air marks, sand inclusion, cold shut, holes, cracks and the like. Therefore, the product quality of all brake discs must be checked before the cast brake disc blanks are finished and assembled.

The mode that relies on artifical naked eye to observe to the detection of brake disc appearance quality of present many brake disc manufacturing enterprises mainly differentiates, is subject to artifical detection mode: the defects of low product detection efficiency, poor product outflow phenomenon and difficult product quality guarantee are caused by insufficient objectivity, great dependence on the experience and responsibility of inspectors, large workload and other characteristics.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a brake disc appearance imperfections detection device, arrange certain mechanical mechanism through high accuracy laser camera, linear array camera, high accuracy industry camera and get looks and scan each face of brake disc, realize the defect detection, the testing process is reliable and stable, does not receive the influence of artificial subjective factor and environmental factor, and efficient, can fully satisfy the needs of actual production. The image recognition software part in the detection host can be realized by adopting the existing software.

The purpose of the utility model is realized through the following technical scheme:

a brake disc appearance defect detection device comprises a feeding roller way, a discharging roller way, a detection channel, a detection host machine, a repair product hopper and a waste product hopper; the detection channel is arranged between the feeding roller way and the discharging roller way, and an upper surface phase taking assembly and a lower surface phase taking assembly are sequentially arranged on the detection channel;

the upper surface phase taking assembly comprises a rotatable detection platform for placing a brake disc to be detected and a first camera assembly for completing upper surface and side phase taking in the rotation process of the brake disc to be detected;

the lower surface phase taking assembly comprises a multi-axis manipulator and a second camera assembly, wherein the multi-axis manipulator is used for taking the brake disc to be detected down from the detection platform and completing rotation, and the second camera assembly is used for completing phase taking of the lower surface of the brake disc in the rotation process of the brake disc to be detected;

the first camera assembly and the second camera assembly are connected with a signal input end of the detection host, and a signal output end of the detection host is connected with a control signal input end of the multi-axis manipulator; the multi-shaft manipulator places a brake disc without defects on a discharge roller way, places repairable defective parts in the repaired product hopper, and places unrepairable waste parts in the waste product hopper.

The detection device further comprises a through channel, the detection channel and the through channel are arranged between the feeding roller way and the discharging roller way side by side, and a through roller way is arranged in the through channel.

The detection device further comprises a gantry manipulator, wherein the gantry manipulator is arranged above the detection platform and used for transferring the brake disc to be detected on the feeding roller way to the detection platform.

The first camera assembly and the second camera assembly are formed by distributing laser cameras and linear array cameras in an L-shaped array.

Or the first camera assembly and the second camera assembly are formed by distributing the laser cameras and the industrial cameras in an L-shaped array.

Or, the first camera component and the second camera component are both binocular structured light cameras.

The detection device also comprises a display device, and the display device is connected with the signal output end of the detection host.

The utility model has the advantages that:

1. the utility model discloses a combination of linear camera (linear array camera) and laser camera scans the brake disc and gets the looks, and laser camera is very sensitive to three-dimensional spatial information and height yardstick information, and linear camera or high accuracy industry camera are very sensitive to the colour difference information, and the combination is used and can be realized detecting the high accuracy of the various common appearance defects of cast member with lower costs.

2. When the appearance defects of the brake disc are detected, the defect types can be distinguished, and the subsequent process flow treatment is facilitated. The size and the defect position of the defect can be detected, whether the defect of the defective detection piece can be repaired or not is judged, automatic online detection is achieved, the detection process is stable and reliable, the influence of human subjective factors and environmental factors is avoided, the efficiency is high, the detection precision is high, the quality control standard is unified, and the requirement of actual production can be fully met.

3. The system classifies and positions the defect types, visually and visually presents the defect types, so that the defective parts can be repaired conveniently in the follow-up process of a factory, and the production efficiency is further improved.

Drawings

FIG. 1 is a schematic structural view of a brake disc detection system of the present invention;

FIG. 2 is a schematic diagram of three common brake disc configurations;

fig. 3 is a schematic structural diagram of a first camera module according to the present invention;

fig. 4 is a schematic structural diagram of a second camera component of the present invention;

in the figure, 1-detection table, 2-first camera component, 3-multi-shaft manipulator, 4-second camera component, 5-laser camera, 6-linear array camera, 7-repair product hopper, 8-waste product hopper, 9-feeding roller way, 10-straight-through roller way, 11-gantry manipulator and 12-discharging roller way.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the brake disc appearance defect detection device comprises a feeding roller way 9, a discharging roller way 12, a detection channel, a detection host, a repair product hopper 7 and a waste product hopper 8; the detection channel is arranged between the feeding roller way 9 and the discharging roller way 12, and an upper surface phase taking assembly and a lower surface phase taking assembly are sequentially arranged on the detection channel;

the upper surface phase taking assembly comprises a rotatable detection table 1 for placing a brake disc to be detected and a first camera assembly 2 for completing upper surface (such as W surface and X surface of the brake disc shown in figure 2) and side surface phase taking in the rotation process of the brake disc to be detected;

the lower surface phase taking assembly comprises a multi-axis manipulator 3 for taking down the brake disc to be detected from the detection table 1 and completing rotation, and a second camera assembly 4 for completing phase taking of the lower surface (such as the U surface, the V surface and the Y surface of the brake disc shown in figure 2) of the brake disc to be detected in the rotation process of the brake disc to be detected;

the first camera assembly 2 and the second camera assembly 4 are both connected with a signal input end of the detection host, and a signal output end of the detection host is connected with a control signal input end of the multi-axis manipulator 3; the multi-shaft manipulator 3 places a brake disc without defects on a discharge roller table 12, places repairable defective parts in the repaired product hopper 7 and places unrepairable waste parts in the waste product hopper 8.

The defects needing to be detected comprise sand holes, air holes, meat deficiency, fleshiness, surface sand adhesion, cracks, unclear marks, wrong boxes, box expansion, large air scars, small air scars, shallow air scars, cold shut, tiny holes and the like.

The preset conditions for judging whether the brake disc with the defects belongs to repairable parts or scrapped parts are as follows:

one is that the type of defect affects whether the product is rejected, such as cracks and blisters. Secondly, if the defect distribution position and the defect distribution size are larger than 2mm or the defect distribution position and the defect distribution size are larger than 2mm, the defect must be scrapped at the joint of the roof fall and the plate surface; the sticky sand and the fleshiness are also discarded if the size is larger than 2 x 2mm or the sticky sand and the fleshiness are distributed at the joint of the roof fall and the plate surface. So the utility model discloses used laser camera, can calculate the size of brake disc through the scanning outside, software system can also calculate the size and the distribution position of defect, is convenient for whether scrap to the brake disc and make the judgement.

The system can calculate the actual product size of the casting according to the image information of the casting to be measured and visually display the actual product size. The system can accurately output the dimension measurement information of the product, and the dimension measurement information serves as one of quality assurance indexes and also provides data indexes for the subsequent machining of the cast part in a factory.

It should be noted that the image recognition software in the detection host may be implemented by using existing software, and it is only necessary to preset images of various defective products for comparison, which is not described herein again.

Preferably, the detection device further comprises a through channel, the detection channel and the through channel are arranged between the feeding roller way 9 and the discharging roller way 12 side by side, and a through roller way 10 is arranged in the through channel. The detection channel and the through channel can be switched, when the detection system needs to be overhauled and maintained, the detection system can be switched to the through channel to transport workpieces, and normal production is not affected.

Specifically, the detection device further comprises a gantry manipulator 11, wherein the gantry manipulator 11 is arranged above the detection table 1 and used for transferring a brake disc to be detected on the feeding roller way 9 to the detection table 1.

Appearance detection and dimension measurement process of the brake disc: arrange the brake disc that awaits measuring in the upper surface through portal manipulator 11 and get the looks subassembly, when driving the brake disc rotation through examining test table 1, first camera subassembly 2 gets the looks to the brake disc, and data transfer that first camera subassembly 2 will gather detects the host computer, and the system is accomplished the detection to brake disc W face, X face and brake disc side this moment, calculates the external dimension information such as diameter (radius), each face thickness that the measurement obtained the brake disc simultaneously.

Then, the brake disc is lifted (or overturned) by the multi-axis manipulator 3 and is rotated, the rotation phase taking is carried out under the action of the second camera assembly 4, the acquired data are transmitted to the detection host, the system detects the U surface, the V surface and the Y surface of the brake disc at the moment, and the size information such as the inner diameter of the brake disc is obtained by calculation and measurement.

Finally, the detection host machine analyzes the image, sorting of the brake discs is completed by controlling the movement of the multi-axis manipulator 3, if the brake discs are not defective, the brake discs are placed on the discharging roller table 12 and conveyed to the next process, if the brake discs are defective and the defect types belong to types which cannot be repaired, the multi-axis manipulator 3 places the brake discs in the waste product hopper 8, and if the defect types of the brake discs belong to types which can be repaired, the multi-axis manipulator 3 places the brake discs in the repaired product hopper 7.

As shown in fig. 3 and 4, the first camera assembly 2 and the second camera assembly 4 are both formed by distributing the laser cameras 5 and the line cameras 6 in an L-shaped array, and the L-shaped distribution is used for clearly and completely shooting each surface of the brake disc and the connection position of each surface. The combination of the laser camera 5 and the linear camera 6 may enable more accurate defect detection. The line camera 6 may also be implemented by a high-precision industrial camera instead.

If necessary, the first camera assembly 2 and the second camera assembly 4 may be used with a light source system for the purpose of improving the definition of taking the phase.

In addition, the first camera component 2 and the second camera component 4 may also adopt a high-precision binocular structured light camera, but the cost is relatively high, and the scanning imaging rate cannot meet the requirement of field production, because the binocular structured light is formed by arranging and converting structured light (such as stripe light) and then imaging by splicing, the process of scanning, photographing and imaging is time-consuming.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The brake disc appearance defect detection device is characterized by comprising a feeding roller way (9), a discharging roller way (12), a detection channel, a detection host, a repair product hopper (7) and a waste product hopper (8); the detection channel is arranged between the feeding roller way (9) and the discharging roller way (12), and an upper surface phase taking assembly and a lower surface phase taking assembly are sequentially arranged on the detection channel;

the upper surface phase taking assembly comprises a rotatable detection table (1) for placing a brake disc to be detected and a first camera assembly (2) for completing upper surface and side phase taking in the rotation process of the brake disc to be detected;

the lower surface phase taking assembly comprises a multi-axis manipulator (3) used for taking down the brake disc to be detected from the detection table (1) and completing rotation, and a second camera assembly (4) used for completing phase taking of the lower surface of the brake disc in the rotation process of the brake disc to be detected;

the first camera assembly (2) and the second camera assembly (4) are connected with a signal input end of the detection host, and a signal output end of the detection host is connected with a control signal input end of the multi-axis manipulator (3); the multi-shaft manipulator (3) places a brake disc without defects on a discharge roller way (12), places repairable defective parts in the repair product hopper (7), and places unrepairable waste parts in the waste product hopper (8).

2. The detection device according to claim 1, wherein: the device is characterized by further comprising a through channel, wherein the detection channel and the through channel are arranged between the feeding roller way (9) and the discharging roller way (12) side by side, and a through roller way (10) is arranged in the through channel.

3. The detection device according to claim 1, wherein: the device is characterized by further comprising a gantry manipulator (11), wherein the gantry manipulator (11) is arranged above the detection table (1) and used for transferring a brake disc to be detected on the feeding roller way (9) to the detection table (1).

4. The detection device according to claim 1, wherein: the first camera assembly (2) and the second camera assembly (4) are formed by distributing laser cameras (5) and linear array cameras (6) in an L-shaped array.

5. The detection device according to claim 1, wherein: the first camera assembly (2) and the second camera assembly (4) are formed by distributing laser cameras (5) and industrial cameras in an L-shaped array.

6. The detection device according to claim 1, wherein: the first camera assembly (2) and the second camera assembly (4) are both binocular structured light cameras.

7. The detection device according to claim 1, wherein: the display device is connected with the signal output end of the detection host.