Device for automatically identifying type of brake disc

Abstract

The utility model relates to the technical field of brake pad detection, in particular to a device for automatically identifying the type of a brake disc, which comprises a conveying belt running at a constant speed and the brake disc moving along with the conveying belt, and a camera assembly and a distance meter assembly are sequentially arranged in the advancing direction of the conveying belt at intervals. A 3D camera with an adjustable angle is arranged at the top position of the camera assembly, a laser range finder capable of moving in the direction perpendicular to the advancing direction of the conveying belt is arranged at the top position of the range finder assembly, the size of the brake disc can be automatically measured, and the specific model of the brake disc can be determined by comparing a database; the measurement process is not limited by the placing position of the brake disc any more, and the measurement size precision is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pad detection, in particular to a device for automatically identifying the model of a brake disc. Background Art

[0002] The brake disc is a brake disc. When the vehicle brakes, the brake caliper clamps the brake disc to slow down or stop the vehicle. There are many types of brake discs. Different types of brake discs have different disc diameters, hole diameters, brake surface thickness and total height. At present, the cleaned brake disc blanks are transported out through conveyor belts, and are usually manually selected and sorted by human eye recognition. However, manual sorting is extremely inefficient, prone to errors, and labor-intensive.

[0003] The Chinese utility model patent with authorization announcement number CN215448474U discloses a brake disc wall thickness uniformity detection device, including a transmission component and a detection component, the transmission component includes a frame, a lifting mechanism for installing the detection component is provided below the frame, the detection component includes a laser rangefinder respectively installed on the frame and the lifting mechanism, and a support column is provided on the lifting mechanism corresponding to the laser rangefinder; the two laser rangefinders are arranged opposite to each other and are respectively fixedly installed on the support column and the frame, the outer sleeve of the support column is provided with a rotating sleeve, the rotating sleeve is driven by a servo motor, and a matching tray is provided at the end corresponding to the brake disc, the distance between the inner ring and the outer ring of the brake disc and the laser rangefinder can be respectively measured by the two laser rangefinders arranged opposite to each other, and the distance between the two laser rangefinders is fixed and known, so the wall thickness of the brake disc can be obtained by making a difference, thereby realizing automatic sorting of the brake disc according to the specification size. The above-mentioned public solution requires that the brake disc moves in a fixed and uniform position on the transmission roller during the measurement process, which increases the cost of material sorting at the front end of the brake disc, and does not provide a measurement solution for the size of the brake disc when it is irregularly scattered on the conveyor belt and is transported along the conveyor belt. Utility Model Content

[0004] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides a device for automatically identifying the model of a brake disc.

[0005] Technical solution: To achieve the above-mentioned purpose, the utility model discloses a device for automatically identifying the model of a brake disc, comprising a conveyor belt traveling at a constant speed and a brake disc moving along with the conveyor belt, wherein a camera assembly and a rangefinder assembly are sequentially arranged at intervals in the forward direction of the conveyor belt, wherein the camera assembly is provided with a 3D camera with an adjustable angle at the top position, and the rangefinder assembly is provided with a laser rangefinder which can be displaced perpendicular to the forward direction of the conveyor belt at the top position.

[0006] Preferably, the rangefinder assembly further comprises a rangefinder bracket and an electric slide for mounting the laser rangefinder, the rangefinder bracket spans across the conveyor belt, and the electric slide is fixed to the upper portion of the rangefinder bracket and is located above the conveyor belt.

[0007] Preferably, there are two groups of laser rangefinders, and the two groups of laser rangefinders move synchronously.

[0008] Preferably, the camera assembly further comprises a support frame and a camera mount, wherein the support frame spans across the conveyor belt, and the 3D camera is connected to a top crossbeam of the support frame via the camera mount and faces the conveyor belt.

[0009] Preferably, the camera mount includes an arc plate and an adapter plate, the arc plate is fixedly connected to the top cross beam, the arc plate is provided with a center hole, and two groups of first arc holes are provided in the circumferential direction, the adapter plate is provided with a first through hole corresponding to the center hole, the two are connected by a first bolt, the adapter plate can be rotated around the first bolt for position adjustment, the adapter plate is also provided with a second through hole corresponding to the two groups of first arc holes, and the two are connected by a second bolt.

[0010] Preferably, the camera support is also provided with a mounting plate for connecting the 3D camera, and the mounting plate is provided with a group of first side panels on both sides in the width direction, and the first side panels are provided with first side through holes and second side through holes, and second side panels are provided with second side panels on both sides of the adapter plate, and the second side panels are provided with first connecting holes and second connecting holes, and the first connecting hole and the first side through hole, and the second connecting hole and the second side through hole are connected respectively by third bolts and fourth bolts.

[0011] Preferably, any hole shape of the first connection hole, the second connection hole, the first side through hole and the second side through hole is set to be an elongated arc shape.

[0012] The beneficial effects of the utility model are:

[0013] 1. The brake disc moves forward at a constant speed along the conveyor belt. When it passes under the position of the 3D camera, the 3D camera automatically scans and finds the coordinates of the center position of the brake disc and transmits them to the computer. Based on these coordinates, the computer calculates the position where the electric slide needs to move and transmits them to the electric slide. The electric slide starts, and the laser rangefinder moves into position so that the center position of the brake disc passes through the center point of the line connecting the two laser rangefinder probes. When the brake disc passes through the two laser rangefinders, the numerical changes of the laser rangefinders are used to calculate the outer dimensions of the brake disc. The specific model of this brake disc can be determined by comparing with the database. The measurement process is no longer limited to the placement of the brake disc, and the measurement size is more accurate. The specific model of this brake disc can be determined by comparing with the database.

[0014] 2. In order to improve the scanning accuracy of the 3D camera and avoid the scanning range deviation caused by component installation factors, the installation angle of the 3D camera can be rotated through the first arc hole to adjust the scanning range of the 3D camera in the forward direction of the conveyor belt, and can also be rotated with the position of the mounting plate relative to the adapter plate to adjust the scanning range of the 3D camera in the width direction of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the overall structure of the utility model;

[0016] Figure 2 This is a top view of the overall structure of the utility model;

[0017] Figure 3 This is a left view of the overall structure of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the camera support in the utility model;

[0019] Figure 5 This is a front view of the camera support in the utility model;

[0020] Figure 6 This is a schematic diagram of the detection trajectory of the laser rangefinder in the utility model.

[0021] In the figure, 1. conveyor belt; 2. brake disc; 3. camera assembly; 4. rangefinder assembly; 5. 3D camera; 6. laser rangefinder; 7. electric slide; 8. rangefinder bracket; 9. support frame; 10. camera support; 11. arc plate; 12. adapter plate; 13. center hole; 14. first arc hole; 15. first through hole; 16. first bolt; 17. second through hole; 18. second bolt; 19. mounting plate; 20. first side through hole; 21. second side through hole; 22. first side plate; 23. second side plate; 24. first connecting hole; 25. third bolt; 26. fourth bolt; 27. second connecting hole; 28. top crossbeam; 29. ​​laser rangefinder detection track. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1 To Attachment Figure 6 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0023] In the following description, the “direction of advancement” can refer to the attached Figure 1 The X direction in .

[0024] A device for automatically identifying brake disc models, such as Figure 1 — Figure 3As shown, it includes a conveyor belt 1 running at a constant speed and a brake disc 2 moving with the conveyor belt 1, and the brake disc 2 is irregularly arranged on the conveyor belt 1. In the forward direction of the conveyor belt 1, a camera assembly 3 and a rangefinder assembly 4 are sequentially arranged at intervals.

[0025] The camera assembly 3 includes a support frame 9 and a camera support 10 . The support frame 9 is placed on the ground across the conveyor belt 1 . The 3D camera 5 is connected to the top crossbeam 28 of the support frame 9 through the camera support 10 and faces the conveyor belt 1 .

[0026] like Figure 4 and Figure 5 As shown, the camera support 10 includes an arc plate 11 and an adapter plate 12. The arc plate 11 is fixedly connected to the top cross beam 28. The arc plate 11 is provided with a center hole 13 and two groups of first arc holes 14 in the circumferential direction. The adapter plate 12 is provided with a first through hole 15 corresponding to the center hole 13, and the two are connected by a first bolt 16. The adapter plate 12 is also provided with a second through hole 17 corresponding to the two groups of first arc holes 14, and the two are connected by a second bolt 18. When it is necessary to adjust the scanning range of the 3D camera 5 relative to the length direction of the conveyor belt 1, firstly, the first bolt 16 and the second bolt 18 are loosened, the adapter plate 12 rotates around the first bolt 16, and the second bolt 18 is displaced along the arc track of the first arc hole 14 until the position of the 3D camera 5 is adjusted to meet the scanning range requirements in the length direction, and then the first bolt 16 and the second bolt 18 are tightened.

[0027] Furthermore, the camera support 10 is further provided with a mounting plate 19 for connecting the 3D camera 5, and the mounting plate 19 is provided with a group of first side plates 22 on both sides in the width direction, and the first side plates 22 are provided with a first side through hole 20 and a second side through hole 21, and the adapter plate 12 is provided with a second side plate 23 on both sides, and the second side plate 23 is provided with a first connecting hole 24 and a second connecting hole 27, and the first connecting hole 24 and the first side through hole 20, and the second connecting hole 27 and the second side through hole 21 are connected by a third bolt 25 and a fourth bolt 26 respectively. In order to further adjust the scanning range of the 3D camera 5 in the width direction, the first connecting hole 24 is connected to the first side through hole 20, and the second connecting hole 27 is connected to the second side through hole 21. The shape of any of the connection holes 24, the second connection holes 27, the first side through holes 20 and the second side through holes 21 is set to be an elongated arc. In this embodiment, the first connection hole 24 is an elongated arc hole. When the scanning range in the width direction of the 3D camera 5 needs to be adjusted, the third bolt 25 and the fourth bolt 26 are firstly loosened, and the mounting plate 19 is rotated with the fourth bolt 26 as the central axis, and the third bolt 25 is displaced along the elongated arc hole track of the first connection hole 24 until the scanning range in the width direction of the 3D camera 5 meets the requirements, and then the third bolt 25 and the fourth bolt 26 are tightened. In the second embodiment, the shape of the first side through hole 20 is set to be an elongated arc, and the mounting plate 19 is rotated with the fourth bolt 26 as the central axis, and the third bolt 25 is displaced along the elongated arc hole track of the first side through hole 20, and the scanning range in the width direction of the 3D camera 5 can also be adjusted. In the third embodiment, the second connection hole 27 is set as an elongated arc hole, and the mounting plate 19 is rotated with the third bolt 25 as the central axis, and the fourth bolt 26 is displaced along the elongated arc hole track of the second connection hole 27, and the scanning range adjustment of the 3D camera 5 in the width direction can also be achieved. In the fourth embodiment, the second side through hole 21 is set as an elongated arc hole, and the mounting plate 19 is rotated with the third bolt 25 as the central axis, and the fourth bolt 26 is displaced along the elongated arc hole track of the second side through hole 21, and the scanning range adjustment of the 3D camera 5 in the width direction can also be achieved.

[0028] The rangefinder assembly 4 includes a rangefinder bracket 8 and an electric slide 7 for installing a laser rangefinder 6. The rangefinder bracket 8 is fixed on the ground across the conveyor belt 1. The electric slide 7 is fixed to the upper part of the rangefinder bracket 8 and is located above the conveyor belt 1. Two groups of laser rangefinders 6 are installed on the electric slide 7. The two groups of laser rangefinders 6 move synchronously. The center distance between the probes of the laser rangefinder 6 is a fixed value c. In this embodiment, the center distance between the two groups of laser rangefinders 6 is 70 mm.

[0029] When the device is working, the brake disc 2 follows the conveyor belt 1 and moves forward at a constant speed. When it passes under the position of the 3D camera 5, the 3D camera 5 automatically scans and finds the center position coordinates of the brake disc 2 and transmits them to the computer. The computer calculates the position where the electric slide 7 needs to move based on the coordinates and transmits them to the electric slide 7. The electric slide 7 starts, the laser rangefinder 6 moves into place, and the center position of the brake disc 2 passes through the center point of the line connecting the two sets of laser rangefinder 6 probes. Figure 6 As shown, the center distance between the laser rangefinder 6 probes is a fixed value c, and the detection tracks of the two groups of laser rangefinders 6 are laser rangefinder detection tracks 29. Taking the inner hole diameter of the brake disc 2 as an example, the attached Figure 6 The distance a and distance b in the figure can be obtained by taking multiple values ​​of the laser rangefinder in quick succession and combining them with the moving speed of the brake disc. Therefore, the inner hole radius r of the brake disc 2 can be obtained according to the following calculation formula, thereby obtaining the inner hole diameter of the brake disc 2. The calculation formula is:

[0030]

[0031] Among them, x and y are the distance values ​​from the center of the brake disc 2 to the laser rangefinder detection track 29; a and b are the displacement distances of the two groups of laser rangefinders 6 in the inner hole of the brake disc 2; c is the center distance between the two groups of laser rangefinders 6 probes, which is a fixed value of 70mm; r is the radius of the inner hole of the brake disc 2.

[0032] Similarly, the outer diameter, middle diameter, thickness and total height of the brake disc 2 can also be calculated. By comparing with the database, the specific model of the brake disc can be determined and intelligent sorting and classification can be performed. The specific calculation method of the outer diameter, middle diameter, thickness and total height is technical knowledge familiar to technical personnel in this field and will not be repeated here.

[0033] Through the functions of the camera component 3 and the rangefinder component 4, the device is no longer limited in calculating the size of the brake disc 2 relative to the position of the brake disc 2 relative to the conveyor belt 1. The usage scenarios are more flexible, the detection size accuracy is higher, and the intelligent sorting of the brake disc 2 is realized.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for automatically identifying the model of a brake disc, characterized in that: The invention comprises a conveyor belt (1) running at a constant speed and a brake disc (2) moving with the conveyor belt (1); a camera assembly (3) and a rangefinder assembly (4) are sequentially arranged at intervals in the forward direction of the conveyor belt (1); the camera assembly (3) is provided with an angle-adjustable 3D camera (5) at the top; and the rangefinder assembly (4) is provided with a laser rangefinder (6) which can be displaced perpendicular to the forward direction of the conveyor belt (1) at the top.

2. The device for automatically identifying the brake disc model according to claim 1, characterized in that: The rangefinder assembly (4) further comprises a rangefinder bracket (8) and an electric slide (7) for mounting the laser rangefinder (6); the rangefinder bracket (8) spans the conveyor belt (1); the electric slide (7) is fixed to the upper part of the rangefinder bracket (8) and is located above the conveyor belt (1).

3. The device for automatically identifying the brake disc model according to claim 2, characterized in that: The number of the laser rangefinders (6) is two groups, and the two groups of laser rangefinders (6) move synchronously.

4. The device for automatically identifying the brake disc model according to claim 1, characterized in that: The camera assembly (3) also includes a support frame (9) and a camera support (10), wherein the support frame (9) spans the conveyor belt (1), and the 3D camera (5) is connected to the top crossbeam (28) of the support frame (9) through the camera support (10) and faces the conveyor belt (1).

5. The device for automatically identifying the brake disc model according to claim 4, characterized in that: The camera support (10) comprises an arc plate (11) and an adapter plate (12), wherein the arc plate (11) is fixedly connected to the top cross beam (28), the arc plate (11) is provided with a center hole (13), and two groups of first arc holes (14) are provided in the circumferential direction, the adapter plate (12) is provided with a first through hole (15) corresponding to the center hole (13), and the two are connected by a first bolt (16), the adapter plate (12) can be rotated around the first bolt (16) for position adjustment, and the adapter plate (12) is also provided with a second through hole (17) corresponding to the two groups of the first arc holes (14), and the two are connected by a second bolt (18).

6. The device for automatically identifying the brake disc model according to claim 5, characterized in that: The camera support (10) is also provided with a mounting plate (19) for connecting the 3D camera (5); the mounting plate (19) is provided with a group of first side plates (22) on both sides in the width direction; the first side plates (22) are provided with first side through holes (20) and second side through holes (21); the adapter plate (12) is provided with second side plates (23) on both sides; the second side plates (23) are provided with first connecting holes (24) and second connecting holes (27); the first connecting holes (24) and the first side through holes (20), and the second connecting holes (27) and the second side through holes (21) are connected respectively by third bolts (25) and fourth bolts (26).

7. The device for automatically identifying the brake disc model according to claim 6, characterized in that: Any hole shape among the first connection hole (24), the second connection hole (27), the first side through hole (20) and the second side through hole (21) is set to be an elongated arc shape.

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