Abrasion resistance detection equipment for automobile brake pad

Abstract

The invention belongs to the technical field of brake pad detection, and particularly relates to an abrasion resistance detection device for an automobile brake pad, which comprises a detection table, and a brake pad placing and positioning assembly is arranged on the detection table; the brake pad placing and positioning assembly comprises a placing table fixedly connected to one side of the upper end face of the detection table, a plurality of guide rods are slidably connected to one side of the bottom of the placing table, a positioning table is fixedly connected to the upper ends of the guide rods, and a through hole allowing the positioning table to penetrate through is formed in the placing table. By means of the detection auxiliary assembly, after friction work of the grinding disc on the surface of the brake pad is finished, the surface of the brake pad is coated with pigment through the coating roller, and due to the fact that the abrasion area of the surface of the brake pad is in a concave shape, the pigment can only be coated on the non-abrasion area of the surface of the brake pad. Therefore, the abrasion area and the non-abrasion area of the surface of the brake pad form a distinct contrast, and the accuracy of abrasion resistance detection is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of brake pad detection, in particular to a wear resistance detection device for automobile brake pads. Background Art

[0002] Automotive brake pads are core safety components of a vehicle's braking system. Their core function is to convert the vehicle's kinetic energy into heat through friction with the brake disc or drum, thereby slowing or stopping the vehicle. During the production process, automotive brake pads undergo wear resistance testing to ensure they meet wear resistance requirements.

[0003] The patent with announcement number CN217033352U discloses a wear resistance detection device for automobile brake pads, including a U-shaped seat, a brake pad and a grinding disc assembly. The grinding disc assembly is arranged in the middle of the U-shaped seat. There are two groups of brake pads. It also includes a transmission mechanism and a fixed plate. The fixed plates are symmetrically arranged on both sides of the upper part of the grinding disc assembly. The two groups of fixed plates are provided with elastic lifting assemblies. Brake pads are provided on one side of the two groups of fixed plates. The two groups of brake pads are symmetrically fixed with square plates. The upper and lower parts of the two groups of brake pads are symmetrically provided with positioning parts. The four groups of square plates are slidably arranged in the positioning parts arranged at the same position. The transmission mechanism includes a rotating assembly and a power assembly. The patent fixes and limits the brake pads by two groups of positioning parts and an elastic lifting assembly. The disassembly and assembly of the brake pads is extremely simple, which greatly facilitates the staff to replace the brake pads and improves the detection efficiency of the brake pads.

[0004] However, the above technical solution still has the following deficiencies in practical application: When testing the wear resistance of brake pads, a rotating grinding disc is driven into contact with the brake pad surface, creating friction between the two. The wear resistance of the brake pad is then measured by observing the wear on the brake pad surface. However, in some cases, to improve the accuracy of the test results, it is necessary to contact the grinding disc with the brake pad surface at multiple locations and then observe the overall wear of the brake pad. If the brake pad surface is concave due to contact with the grinding disc, the concave area may not be obvious, which can easily lead to omissions or misjudgments when observing the wear degree of the brake pad surface, thus affecting the accuracy of the wear resistance test. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems raised in the background art, the present invention provides a wear resistance testing device for automobile brake pads.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a wear resistance testing device for automobile brake pads, comprising a testing platform, wherein the testing platform is provided with a brake pad placement and positioning component; The brake pad placement and positioning assembly includes a placement platform fixedly connected to one side of the end surface of the detection platform, a plurality of guide rods are slidably connected to one side of the bottom of the placement platform, the upper end of the guide rod is fixedly connected to the positioning platform, the placement platform is provided with a through hole for the positioning platform to pass through, and a two-way screw guide rail 2 is installed on the positioning platform, and positioning blocks are slidably connected to both sides of the two-way screw guide rail 2; The testing platform is also provided with a friction component; The friction assembly includes a guide plate 1 fixedly connected to one side of the end surface of the detection platform, a screw guide rail 1 is installed on one side of the guide plate 1, a guide plate 2 is slidably provided on the screw guide rail 1, a screw guide rail 2 is installed on one side of the guide plate 2, a slider 1 is slidably provided on the screw guide rail 2, a cylinder 1 is fixedly connected to one side of the upper end surface of the slider 1, a piston end of the cylinder 1 is fixedly connected to a mounting plate, and a grinding disc is rotatably provided on one side of the lower end surface of the mounting plate; The mounting plate is also provided with a detection auxiliary component; The detection auxiliary component includes a second cylinder fixedly connected to one side of the upper end surface of the mounting plate, the piston end of the second cylinder is fixedly connected to a connecting block, a support plate is rotatably provided on one side of the lower end surface of the connecting block, and coating rollers are rotatably provided at both ends of the support plate.

[0007] Preferably, a motor 1 is fixedly connected to one side of the upper end surface of the mounting plate, and an output end of the motor 1 is fixedly connected to the grinding disc.

[0008] Preferably, a paint box is fixedly connected to one side of the upper end surface of the mounting plate, one side of the paint box is connected to a pump body, the pump body is fixedly connected to the mounting plate, the discharge end of the pump body is connected to a hose, one end of the hose is connected to a long tube, a plurality of nozzles are horizontally arranged on one side of the long tube, the nozzles pass through and are fixedly connected to one side of the support plate, one side of the upper end surface of the connecting block is fixedly connected to motor three, the output end of motor three is fixedly connected to one side of the upper end of the support plate, one end of the support plate is fixedly connected to motor two, and the output end of motor two is fixedly connected to one end of the coating roller.

[0009] Preferably, the placement table is further provided with a size-adaptable enclosure assembly; The size-adaptive enclosure assembly includes a transverse plate slidably connected to one side of the upper end surface of the placement table, a bidirectional screw guide rail four is installed on one side of the upper end surface of the transverse plate, and sliders three are slidably connected on both sides of the bidirectional screw guide rail four, and a baffle is rotatably provided at one end of the slider three, a rubber pad one is fixedly connected to one side of the transverse plate, a cylinder four is fixedly connected to one side of the upper end surface of the placement table, a piston end of the cylinder four is fixedly connected to a rubber pad two, a bottom side of the placement table is fixedly connected to a cylinder three, and the piston end of the cylinder three is fixedly connected to one side of the bottom of the positioning table.

[0010] Preferably, a cylinder five is fixedly connected to one side of the upper end surface of the placement table, the piston end of the cylinder five is fixedly connected to one end of the transverse plate, a motor nine is fixedly connected to one side of the upper end surface of the slider three, and the output end of the motor nine is fixedly connected to one end of the baffle.

[0011] Preferably, the testing table is further provided with a sleeve-type reinforced pigment protection component; The reinforced pigment protection component includes a support frame fixedly connected to one side of the end face of the detection platform, a transparent film roller is rotatably provided on the upper end of the support frame, a transparent film is wrapped around the transparent film roller, two fixed rods are fixedly connected to one side of the end face of the detection platform, a support roller is rotatably provided on the upper end of the fixed rod, a sliding column is fixedly connected to the upper end of the fixed rod, a pressure roller is slidably connected to the sliding column, a cutting plate is fixedly connected to one side of the end face of the detection platform, a cutting knife is rotatably provided on one side of the upper end of the cutting plate, a pillar is fixedly connected to one side of the end face of the detection platform, a rack rod is slidably connected to one end of the rack rod.

[0012] Preferably, a motor four is fixedly connected to one side of the upper end of the support frame, and the output end of the motor four is fixedly connected to one end of the transparent film roller. A spring is sleeved on one side of the sliding column, and one end of the spring is fixedly connected to the upper end of the fixed rod, and the other end is fixedly connected to one end of the pressure roller. A motor five is fixedly connected to one side of the upper end of the cutting board, and the output end of the motor five is fixedly connected to one end of the cutting knife.

[0013] Preferably, a gear is rotatably provided on one side of the upper end of the pillar, the gear is engaged with the tooth block on the rack rod, the upper end of the pillar is fixedly connected to the motor eight, and the output end of the motor eight is fixedly connected to the gear.

[0014] Preferably, a guide rail plate three is fixedly connected to one side of the end surface of the detection platform, a screw guide rail three is installed on one side of the guide rail plate three, a guide rail plate four is slidably provided on the screw guide rail three, a bidirectional screw guide rail one is installed on the guide rail plate four, both sides of the bidirectional screw guide rail one are slidably connected to slider two, one side of the slider two is rotatably provided with a rotating shaft, one end of the rotating shaft is fixedly connected to an adjusting block, a bidirectional screw guide rail three is installed on the adjusting block, both sides of the bidirectional screw guide rail three are slidably connected to expansion blocks, a limit block is rotatably provided at the groove of the expansion block, and a blade is fixedly connected to the middle of the lower end surface of the adjusting block.

[0015] Preferably, one side of the slider 2 is fixedly connected to a motor 7, the output end of the motor 7 is fixedly connected to one end of the rotating shaft, one side of the expansion block is fixedly connected to a motor 6, the output end of the motor 6 is fixedly connected to one end of the limit block.

[0016] The beneficial effects of the present invention are as follows: 1. The wear resistance testing device for automotive brake pads disclosed herein utilizes a testing auxiliary component. After the grinding disc has rubbed the brake pad surface, a coating roller applies a pigment to the brake pad surface. Because the worn areas on the brake pad surface are concave, the pigment is applied only to the non-worn areas. This creates a sharp contrast between the worn and non-worn areas of the brake pad surface. Observing the wear level on the brake pad surface at this point allows for intuitive visualization of the location and extent of wear, avoiding missed observations or misjudgments, and improving the accuracy of wear resistance testing.

[0017] 2. The wear resistance testing device for automotive brake pads disclosed herein utilizes a size-adaptable enclosure assembly, which, in conjunction with a first and second rubber pads and two baffles, encloses the brake pad surface to be tested. Paint is then applied to the brake pad surface using a coating roller. Any paint that flows is blocked by the first and second rubber pads and the two baffles, preventing it from flowing to the sides of the brake pad and other locations. This prevents accidental paint contamination of the operator's hands when removing the brake pad.

[0018] 3. The wear resistance testing equipment for automotive brake pads disclosed herein utilizes a reinforced paint protection assembly. After each brake pad is coated with paint, it is covered with a transparent film. This prevents the paint from being rubbed off due to friction between multiple brake pads when they are stacked together, hindering subsequent observation of the brake pad surface. Furthermore, because the transparent film is attached to the brake pad via a cutout, it maintains its firmness to the pad and prevents accidental removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the guide rail plate; Figure 3 yes Figure 2 A partial enlarged view of the middle A; Figure 4 It is a schematic diagram of the three-dimensional structure of the slider; Figure 5 yes Figure 4 A partial enlarged view of point B in the middle; Figure 6 It is a schematic diagram of the local three-dimensional structure of the testing platform; Figure 7 yes Figure 6 A partial enlarged view of point C in the middle; Figure 8It is a schematic diagram of the three-dimensional structure of the guide rail plate; Figure 9 yes Figure 8 A partial enlarged view of point D in the middle; Figure 10 1. It is a schematic diagram of the three-dimensional structure of the regulating block; Figure 11 It is a schematic diagram of the three-dimensional structure of the slider at two locations; Figure 12 Schematic diagram of the three-dimensional structure of the rack rod; Figure 13 It is a schematic diagram of the three-dimensional structure of the placement table; Figure 14 It is a schematic diagram of the three-dimensional structure of the cylinder; Figure 15 yes Figure 14 A partial enlarged view of point E in the middle; Figure 16 It is a schematic diagram of the three-dimensional structure at the positioning platform.

[0021] In the figure: 1. Inspection table; 2. Guide plate 1; 3. Guide plate 2; 4. Guide plate 3; 5. Guide plate 4; 6. Support frame; 7. Transparent film roller; 8. Mounting plate; 9. Screw guide rail 1; 10. Screw guide rail 2; 11. Slider 1; 12. Cylinder 1; 13. Positioning block; 14. Paint box; 15. Grinding disc; 16. Motor 1; 17. Cylinder 2; 18. Pump body; 19. Long tube; 20. Nozzle; 21. Support plate; 22. Coating roller; 23. Motor 2; 24. Motor 3; 25. Hose; 26. Screw guide rail 3; 27. Bidirectional screw guide rail 1; 28. Pillar; 29. ​​Placement table; 30. Cutting board; 31. Fixing rod; 32. Transverse plate; 33. Motor 4 ;34. Slide column;35. Spring;36. Support roller;37. Pressure roller;38. Cutting knife;39. Motor five;40. Bidirectional screw guide rail two;41. Cylinder three;42. Slider two;43. Rotating shaft;44. Adjusting block;45. Guide rod;46. Bidirectional screw guide rail three;47. Expansion block;48. Blade;49. Positioning table;50. Limit block;51. Motor six;52. Motor seven;53. Motor eight;54. Gear;55. Rack rod;56. Gripper cylinder;57. Baffle;58. Slider three;59. Bidirectional screw guide rail four;60. Rubber pad one;61. Rubber pad two;62. Cylinder four;63. Connecting block;64. Motor nine;65. Cylinder five. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Please refer to Figures 1-16 , the present invention provides a technical solution: a wear resistance testing device for automobile brake pads, comprising a testing platform 1, on which a brake pad placement and positioning component is provided; There is a brake pad placement and positioning assembly including a placement platform 29 fixedly connected to one side of the upper end surface of the test platform 1, a plurality of guide rods 45 are slidably connected to one side of the bottom of the placement platform 29, the upper end of the guide rod 45 is fixedly connected to the positioning platform 49, the placement platform 29 is provided with a through hole for the positioning platform 49 to pass through, and a bidirectional screw guide rail 2 40 is installed on the positioning platform 49, and both sides of the bidirectional screw guide rail 2 40 are slidably connected to positioning blocks 13; A friction component is also provided on the testing platform 1; The friction assembly includes a guide plate 2 fixedly connected to one side of the upper end surface of the detection platform 1, a screw guide rail 9 is installed on one side of the guide plate 2, a guide plate 2 3 is slidably provided on the screw guide rail 9, a screw guide rail 2 10 is installed on one side of the guide plate 2 3, a slider 11 is slidably provided on the screw guide rail 2 10, a cylinder 12 is fixedly connected to one side of the upper end surface of the slider 11, a mounting plate 8 is fixedly connected to the piston end of the cylinder 12, and a grinding disc 15 is rotatably provided on one side of the lower end surface of the mounting plate 8; A detection auxiliary component is also provided on the mounting plate 8; The detection auxiliary component includes a cylinder 2 17 fixedly connected to one side of the upper end face of the mounting plate 8, the piston end of the cylinder 2 17 is fixedly connected to a connecting block 63, a support plate 21 is rotatably provided on one side of the lower end face of the connecting block 63, and coating rollers 22 are rotatably provided at both ends of the support plate 21.

[0024] In this embodiment, Figure 2-Figure 5 As shown, a motor 16 is fixedly connected to one side of the upper end surface of the mounting plate 8, and the output end of the motor 16 is fixedly connected to the grinding disc 15.

[0025] A paint box 14 is fixedly connected to one side of the upper end face of the mounting plate 8, and a pump body 18 is connected to one side of the paint box 14. The pump body 18 is fixedly connected to the mounting plate 8, and a hose 25 is connected to the discharge end of the pump body 18. One end of the hose 25 is connected to a long tube 19. A plurality of nozzles 20 are horizontally arranged on one side of the long tube 19. The nozzle 20 passes through and is fixedly connected to one side of the support plate 21. A motor three 24 is fixedly connected to one side of the upper end face of the connecting block 63, and the output end of the motor three 24 is fixedly connected to one side of the upper end of the support plate 21. A motor two 23 is fixedly connected to one end of the support plate 21, and the output end of the motor two 23 is fixedly connected to one end of the coating roller 22.

[0026] Specifically, in the prior art, when testing the wear resistance of a brake pad, a rotating grinding disc 15 is driven into contact with the brake pad surface, causing friction between the grinding disc 15 and the brake pad. The wear resistance of the brake pad is then determined by observing the degree of wear on the brake pad surface. However, in some cases, to improve the accuracy of the test results, it is necessary to bring the grinding disc 15 into contact with the brake pad surface at multiple locations and then observe the overall degree of wear on the brake pad. When the brake pad surface is concave due to contact with the grinding disc 15, the concave area may not be obvious. This can easily lead to omissions or misjudgments when observing the degree of wear on the brake pad surface, thereby affecting the accuracy of the wear resistance test.

[0027] Therefore, in order to solve the above problem, the working principle of this embodiment is as follows: The brake pad is placed on the positioning platform 49. The two positioning blocks 13 are driven toward each other by the bidirectional screw guide rail 2 40 to clamp the brake pad. Subsequently, the grinding disc 15 is rotated by the motor 16. Under the action of screw guide rail 1 9, screw guide rail 2 10, and cylinder 1 12, the position of the grinding disc 15 in the x, y, and z axes is adjusted to bring the grinding disc 15 into contact with the brake pad surface. The pressure applied by the grinding disc 15 to the brake pad and the friction time between the grinding disc 15 and the brake pad can be controlled to meet different testing requirements. After the friction operation is completed, the grinding disc 15 is driven away from the brake pad. The coating roller 22 is then lowered below the grinding disc 15 by the cylinder 2 17. The pump 18 is then activated, drawing the paint from the paint box 14. The paint is then sprayed onto the surface of the coating roller 22 via the hose 25, the long tube 19, and the spray nozzle 20. Simultaneously, the coating roller 22 is rotated by the motor 23, ensuring that the paint is evenly applied to the surface of the coating roller 22. The coating roller 22 is then driven into contact with the brake pad surface, coating the surface with pigment. Simultaneously, motor 3 24 drives the coating roller 22 in rotation, adjusting its angle to accommodate the curvature of the brake pad. Because the worn areas on the brake pad surface are concave, the pigment is applied only to the unworn areas. This creates a sharp contrast between the worn and unworn areas. Observing the wear on the brake pad surface at this point allows for intuitive identification of the location and extent of wear, avoiding missed observations or misjudgments, and improving the accuracy of wear resistance testing.

[0028] In this embodiment, Figure 13 and Figure 14 As shown, a size-adaptable enclosure assembly is also provided on the placement table 29; The size-adaptive enclosure assembly includes a transverse plate 32 slidably connected to one side of the upper end surface of the placement table 29, and a bidirectional screw guide rail four 59 is installed on one side of the upper end surface of the transverse plate 32. Both sides of the bidirectional screw guide rail four 59 are slidably connected to sliders three 58, and a baffle 57 is rotatably provided at one end of the slider three 58. A rubber pad one 60 is fixedly connected to one side of the transverse plate 32, a cylinder four 62 is fixedly connected to one side of the upper end surface of the placement table 29, and a rubber pad two 61 is fixedly connected to the piston end of the cylinder four 62, and a cylinder three 41 is fixedly connected to one side of the bottom of the placement table 29, and the piston end of the cylinder three 41 is fixedly connected to one side of the bottom of the positioning table 49.

[0029] One side of the upper end surface of the placement table 29 is fixedly connected to a cylinder five 65, the piston end of the cylinder five 65 is fixedly connected to one end of the transverse plate 32, and one side of the upper end surface of the slider three 58 is fixedly connected to a motor nine 64, and the output end of the motor nine 64 is fixedly connected to one end of the baffle 57.

[0030] Specifically, in the above embodiment, although paint can be applied to the surface of the brake pad to observe the worn area on the brake pad surface, when the paint is applied to the surface of the brake pad, the paint may flow along the edge of the brake pad surface, thereby adhering to multiple locations such as the side of the brake pad. When the brake pad is subsequently removed, the staff's hands may easily be contaminated with paint, which may cause trouble.

[0031] Therefore, in order to solve the above problem, the working principle of this embodiment is as follows: After the brake pad is secured, cylinder 3 41 is used to drive positioning platform 49 up and down, adjusting the pad's height so that the pad's top surface is flush with the top surfaces of rubber pad 1 60 and rubber pad 2 61, and the bottom edge of baffle 57 is flush with the pad's top surface. Cylinders 5 65 and 4 62 are then used to bring rubber pad 1 60 and rubber pad 2 61 closer to the pad until they fit snugly against the pad's edge. Because rubber pad 1 60 and rubber pad 2 61 are elastic, they adapt to changes in the pad's curvature. Next, bidirectional screw guide rail 4 59 drives two sliders 3 58 to slide simultaneously, adjusting the spacing between baffles 57. Motor 9 64 drives baffles 57 to rotate, adjusting their angles so that they are flush with the pad's edges. At this point, with the cooperation of rubber pad 1 60, rubber pad 2 61, and the two baffles 57, the brake pad's surface to be inspected is enclosed. The paint is then applied to the surface of the brake pad by the coating roller 22. The flowing paint will be blocked by the rubber pad 1 60, the rubber pad 2 61 and the two baffles 57 and will not flow to the sides of the brake pad and other locations, thereby preventing the staff's hands from being accidentally contaminated with paint when removing the brake pad.

[0032] In this embodiment, Figure 6-Figure 12 As shown, the testing platform 1 is also provided with a sleeve-type reinforced pigment protection component; The sleeve reinforced pigment protection component includes a support frame 6 fixedly connected to one side of the upper end face of the detection platform 1, and a transparent film roller 7 is rotatably provided on one side of the upper end of the support frame 6, and a transparent film is wrapped around the transparent film roller 7. Two fixed rods 31 are fixedly connected to one side of the upper end face of the detection platform 1, and a support roller 36 is rotatably provided on one side of the upper end of the fixed rod 31. A sliding column 34 is fixedly connected to the upper end of the fixed rod 31, and a pressure roller 37 is slidably connected to the sliding column 34. A cutting plate 30 is fixedly connected to one side of the upper end face of the detection platform 1, and a cutting knife 38 is rotatably provided on one side of the upper end of the cutting plate 30. A pillar 28 is fixedly connected to one side of the upper end face of the detection platform 1, and a rack rod 55 is slidably connected to one side of the upper end of the pillar 28, and a clamping cylinder 56 is fixedly connected to one end of the rack rod 55.

[0033] One side of the upper end of the support frame 6 is fixedly connected to a motor four 33, and the output end of the motor four 33 is fixedly connected to one end of the transparent film roller 7. A spring 35 is sleeved on one side of the sliding column 34, and one end of the spring 35 is fixedly connected to the upper end of the fixed rod 31, and the other end is fixedly connected to one end of the pressure roller 37. One side of the upper end of the cutting plate 30 is fixedly connected to a motor five 39, and the output end of the motor five 39 is fixedly connected to one end of the cutting knife 38.

[0034] A gear 54 is rotatably provided on one side of the upper end of the pillar 28, and the gear 54 is engaged with the tooth block on the rack rod 55. A motor 8 53 is fixedly connected to one side of the upper end of the pillar 28, and the output end of the motor 8 53 is fixedly connected to the gear 54.

[0035] A guide plate three 4 is fixedly connected to one side of the upper end surface of the testing table 1, and a screw guide rail three 26 is installed on one side of the guide plate three 4. A guide plate four 5 is slidably provided on the screw guide rail three 26, and a bidirectional screw guide rail one 27 is installed on the guide plate four 5. Slide blocks 2 42 are slidably connected to both sides of the bidirectional screw guide rail one 27, and a rotating shaft 43 is rotatably provided on one side of the slider two 42. An adjusting block 44 is fixedly connected to one end of the rotating shaft 43, and a bidirectional screw guide rail three 46 is installed on the adjusting block 44. Expansion blocks 47 are slidably connected to both sides of the bidirectional screw guide rail three 46, and a limit block 50 is rotatably provided at the groove of the expansion block 47. A blade 48 is fixedly connected to the middle of the lower end surface of the adjusting block 44.

[0036] One side of the slider 2 42 is fixedly connected to a motor 7 52 , and the output end of the motor 7 52 is fixedly connected to one end of the rotating shaft 43 . One side of the expansion block 47 is fixedly connected to a motor 6 51 , and the output end of the motor 6 51 is fixedly connected to one end of the limit block 50 .

[0037] Specifically, in the above-mentioned embodiment, although paint can be applied to the brake pad surface to facilitate observation of the worn areas on the brake pad surface, in some cases, the number of brake pads to be inspected is large. Furthermore, to facilitate observation and more accurately determine the wear resistance of the brake pads, the worn areas on the brake pad surfaces are observed collectively after all brake pads have completed the friction process. Therefore, before the collective observation, the brake pads are first placed together. When multiple brake pads are placed together, friction between the brake pads can easily occur, causing the paint on the brake pad surface to be rubbed off, thereby affecting the subsequent normal observation of the brake pad surface.

[0038] Therefore, in order to solve the above problem, the working principle of this embodiment is as follows: Initially, the end of the transparent film on the transparent film roller 7 is positioned between the support roller 36 and the pressure roller 37 and is compressed. Motor 8 53 drives gear 54 to rotate, driving rack rod 55 to move laterally, aligning the clamping end of clamping cylinder 56 with the end of the transparent film and clamping the end of the transparent film. Motor 4 33 then drives transparent film roller 7 to rotate, unwinding the transparent film. Simultaneously, clamping cylinder 56 pulls the transparent film until the unwound length covers the upper surface of the brake pad. Subsequently, guide plate 4 5 is lowered via screw guide rail 3 26. Two blades 48 cut on either side of the flat portion of the transparent film, forming two incisions. Blades 48 are then driven downward until expansion block 47 passes through the incisions and the upper surface of the transparent film abuts against a protrusion on one side of expansion block 47. Motor 6 51 then drives stop block 50 to rotate, bringing it into contact with the lower surface of the transparent film. The stop block 50 and expansion block 47 cooperate to clamp the transparent film. At this point, the clamping cylinder 56 releases the transparent film, and the motor 5 39 drives the cutting blade 38 to rotate, cutting the transparent film. The cut transparent film is then secured by the expansion block 47 and the limit block 50. The cut transparent film is then driven down and into contact with the upper surface of the brake pad. As one side of the transparent film is pressed against the brake pad and the expansion block 47 continues to descend, the ends of the transparent film will bend. Subsequently, the motor 7 52 drives the adjustment block 44 to rotate 90 degrees, and the cut of the film is directed toward the protrusions at both ends of the brake pad back plate. The protrusions at both ends of the brake pad back plate are conventionally designed to meet installation requirements, as shown in the drawings in the specification, and will not be described in detail here. The two expansion blocks 47 are then driven away from each other by the bidirectional screw guide 3 46, expanding the cut. The two expansion blocks 47 are then driven close to the protrusions on the brake pad back plate by the bidirectional screw guide 1 27, and the transparent film is placed there through the cut, so that the transparent film is hung on the brake pad through the cut. The limit block 50 is then reset, no longer pressing the transparent film. At this point, the expansion block 47 can be withdrawn from the cutout in the transparent film. Repeating this process ensures that each brake pad surface, after being coated with paint, is covered with the transparent film. This prevents the paint from being rubbed off the brake pad surface due to friction between the brake pads when multiple brake pads are placed together, thus affecting subsequent observation of the brake pad surface. Furthermore, since the transparent film is attached to the brake pad through the cutout, it maintains its firmness to the brake pad, preventing accidental removal of the film.

[0039] Working Principle: The brake pad is placed on the positioning platform 49. The two positioning blocks 13 are driven toward each other and clamped together by the bidirectional screw guide rail 2 40. Subsequently, the grinding disc 15 is rotated by the motor 16. Under the action of the screw guide rail 1 9, the screw guide rail 2 10, and the cylinder 1 12, the position of the grinding disc 15 in the x, y, and z axes is adjusted so that the grinding disc 15 contacts the brake pad surface. The pressure applied by the grinding disc 15 to the brake pad and the friction time between the grinding disc 15 and the brake pad can be controlled to meet different testing requirements. When the friction is completed, the grinding disc 15 is driven away from the brake pad. The coating roller 22 is then driven down by the cylinder 2 17 so that it is lower than the grinding disc 15. The pump body 18 is then started. The pump body 18 draws the paint from the paint box 14 and sprays it onto the surface of the coating roller 22 through the hose 25, the long tube 19, and the nozzle 20. At the same time, the motor 2 23 is used to rotate the coating roller 22 so that the surface of the coating roller 22 is evenly stained with the paint. Then, the coating roller 22 is driven to contact the surface of the brake pad, coating the paint on the brake pad surface. At the same time, the coating roller 22 can be rotated by the motor 3 24 to adjust the angle of the coating roller 22 to adapt to the curvature of the brake pad. Because the worn area on the brake pad surface is concave, the paint will only be applied to the non-worn area on the brake pad surface. The worn area on the brake pad surface forms a sharp contrast with the non-worn area. At this time, the wear degree of the brake pad surface is observed again, and the wear position and wear degree of the brake pad can be intuitively observed, avoiding the possibility of observation omissions or misjudgments, which is conducive to improving the accuracy of wear resistance testing. After the brake pad is fixed, the positioning platform 49 is driven up and down by the cylinder 3 41 to adjust the height of the brake pad so that the upper surface of the brake pad is flush with the upper surfaces of the rubber pad 1 60 and the rubber pad 2 61, and the lower edge of the baffle 57 is flush with the upper surface of the brake pad. Then, using cylinders 5 65 and 4 62, rubber pads 1 60 and 2 61 are brought closer to the brake pad until they are in contact with the edge of the pad. Because rubber pads 1 60 and 2 61 are elastic, they adapt to changes in the curvature of the pad. Next, based on the length of the pad, two sliders 3 58 are driven simultaneously by bidirectional screw guide rails 4 59 to adjust the spacing between the two baffles 57. Motor 9 64 drives the baffles 57 to rotate and adjust their angles so that they are flush with the edges of the pad. At this point, rubber pads 1 60, 2 61, and the two baffles 57 cooperate to enclose the surface of the brake pad to be tested. Paint is then applied to the brake pad surface using a coating roller 22. Any paint that flows is blocked by rubber pads 1 60, 2 61, and the two baffles 57, preventing it from flowing to the sides of the pad, thereby preventing the operator's hands from accidentally getting the paint contaminated when removing the pad. In the initial state, the end portion of the transparent film on the transparent film roller 7 is located between the support roller 36 and the pressing roller 37 and is pressed.Motor 8 (53) drives gear 54 to rotate, driving rack rod 55 to move laterally, aligning the clamping end of clamping cylinder 56 with the end of the transparent film, which is then clamped. Motor 4 (33) then drives transparent film roller 7 to rotate, unwinding the transparent film. Simultaneously, clamping cylinder 56 pulls the transparent film until the unwound length of the transparent film covers the upper surface of the brake pad. Subsequently, guide plate 4 (5) is lowered via screw guide rail 3 (26). Two blades 48 cut on both sides of the flat portion of the transparent film, forming two incisions. Blades 48 are then driven downward until expansion block 47 passes through the incisions and the upper surface of the transparent film abuts against a protrusion on one side of expansion block 47. Motor 6 (51) then drives stop block 50 to rotate, bringing it into contact with the lower surface of the transparent film. The stop block 50 and expansion block 47 cooperate to clamp the transparent film. At this point, the clamping cylinder 56 releases the transparent film, and the motor 5 39 drives the cutting blade 38 to rotate, cutting the transparent film. The cut transparent film is then secured by the expansion block 47 and the limit block 50. The cut transparent film is then driven down and into contact with the upper surface of the brake pad. As one side of the transparent film is pressed against the brake pad and the expansion block 47 continues to descend, the ends of the transparent film will bend. Subsequently, the motor 7 52 drives the adjustment block 44 to rotate 90 degrees, and the cut of the film is directed toward the protrusions at both ends of the brake pad back plate. The protrusions at both ends of the brake pad back plate are conventionally designed to meet installation requirements, as shown in the drawings in the specification, and will not be described in detail here. The two expansion blocks 47 are then driven away from each other by the bidirectional screw guide 3 46, expanding the cut. The two expansion blocks 47 are then driven close to the protrusions on the brake pad back plate by the bidirectional screw guide 1 27, and the transparent film is placed there through the cut, so that the transparent film is hung on the brake pad through the cut. The limit block 50 is then reset, no longer pressing the transparent film. At this point, the expansion block 47 can be withdrawn from the cutout in the transparent film. Repeating this process ensures that each brake pad surface, after being coated with paint, is covered with the transparent film. This prevents the paint from being rubbed off the brake pad surface due to friction between the brake pads when multiple brake pads are placed together, thus affecting subsequent observation of the brake pad surface. Furthermore, since the transparent film is attached to the brake pad through the cutout, it maintains its firmness to the brake pad, preventing accidental removal of the film.

[0040] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear resistance testing device for automobile brake pads, comprising a testing platform (1), characterized in that: The test bench (1) is provided with a brake pad placement and positioning assembly; The brake pad placement and positioning assembly includes a placement platform (29) fixedly connected to one side of the upper end surface of the test platform (1), a plurality of guide rods (45) are slidably connected to one side of the bottom of the placement platform (29), the upper end of the guide rod (45) is fixedly connected to the positioning platform (49), the placement platform (29) is provided with a through hole for the positioning platform (49) to pass through, the positioning platform (49) is installed with a two-way screw guide rail (40), and both sides of the two-way screw guide rail (40) are slidably connected with positioning blocks (13); The testing platform (1) is also provided with a friction component; The friction assembly includes a guide plate (2) fixedly connected to one side of the upper end face of the detection table (1), a screw guide rail (9) is installed on one side of the guide plate (2), a guide plate (3) is slidably provided on the screw guide rail (9), a screw guide rail (10) is installed on one side of the guide plate (3), a slider (11) is slidably provided on the screw guide rail (10), a cylinder (12) is fixedly connected to one side of the upper end face of the slider (11), a mounting plate (8) is fixedly connected to the piston end of the cylinder (12), and a grinding disc (15) is rotatably provided on one side of the lower end face of the mounting plate (8); The mounting plate (8) is also provided with a detection auxiliary component; The detection auxiliary component comprises a second cylinder (17) fixedly connected to one side of the upper end face of the mounting plate (8), a connecting block (63) fixedly connected to the piston end of the second cylinder (17), a support plate (21) rotatably provided on one side of the lower end face of the connecting block (63), and coating rollers (22) rotatably provided at both ends of the support plate (21).

2. The wear resistance testing device for automobile brake pads according to claim 1, characterized in that: One side of the upper end surface of the mounting plate (8) is fixedly connected to a motor 1 (16), and the output end of the motor 1 (16) is fixedly connected to the grinding disc (15).

3. The wear resistance testing device for automobile brake pads according to claim 1, characterized in that: A paint box (14) is fixedly connected to one side of the upper end face of the mounting plate (8), and a pump body (18) is connected to one side of the paint box (14). The pump body (18) is fixedly connected to the mounting plate (8). The discharge end of the pump body (18) is connected to a hose (25), and one end of the hose (25) is connected to a long tube (19). A plurality of nozzles (20) are transversely arranged on one side of the long tube (19), and the nozzles (20) pass through and are fixedly connected to one side of the support plate (21). A motor three (24) is fixedly connected to one side of the upper end face of the connecting block (63), and the output end of the motor three (24) is fixedly connected to one side of the upper end of the support plate (21). One end of the support plate (21) is fixedly connected to a motor two (23), and the output end of the motor two (23) is fixedly connected to one end of the coating roller (22).

4. The wear resistance testing device for automobile brake pads according to claim 1, characterized in that: The placement table (29) is also provided with a size-adaptable enclosure assembly; The size-adaptive enclosure assembly includes a transverse plate (32) slidably connected to one side of the upper end surface of the placement table (29), a bidirectional screw guide rail four (59) is installed on one side of the upper end surface of the transverse plate (32), and a slider three (58) is slidably connected to both sides of the bidirectional screw guide rail four (59), and a baffle (57) is rotatably provided at one end of the slider three (58), and a rubber pad one (60) is fixedly connected to one side of the transverse plate (32), a cylinder four (62) is fixedly connected to one side of the upper end surface of the placement table (29), and a piston end of the cylinder four (62) is fixedly connected to a rubber pad two (61), and a bottom side of the placement table (29) is fixedly connected to a cylinder three (41), and a piston end of the cylinder three (41) is fixedly connected to one side of the bottom of the positioning table (49).

5. The wear resistance testing device for automobile brake pads according to claim 4, characterized in that: One side of the upper end surface of the placement table (29) is fixedly connected to a cylinder five (65), and the piston end of the cylinder five (65) is fixedly connected to one end of the transverse plate (32). One side of the upper end surface of the slider three (58) is fixedly connected to a motor nine (64), and the output end of the motor nine (64) is fixedly connected to one end of the baffle (57).

6. The wear resistance testing device for automobile brake pads according to claim 1, characterized in that: The testing platform (1) is also provided with a sleeve-type reinforced pigment protection component; The sleeve reinforced pigment protection component comprises a support frame (6) fixedly connected to one side of the upper end face of the detection platform (1); a transparent film roller (7) is rotatably provided on one side of the upper end of the support frame (6); a transparent film is wound around the transparent film roller (7); two fixed rods (31) are fixedly connected to one side of the upper end face of the detection platform (1); a support roller (36) is rotatably provided on one side of the upper end of the fixed rod (31); a sliding column (34) is fixedly connected to the upper end of the fixed rod (31); a pressure roller (37) is slidably connected to the sliding column (34); a cutting plate (30) is fixedly connected to one side of the upper end face of the detection platform (1); a cutting knife (38) is rotatably provided on one side of the upper end face of the cutting plate (30); a pillar (28) is fixedly connected to one side of the upper end face of the detection platform (1); a rack rod (55) is slidably connected to one side of the upper end of the pillar (28); and one end of the rack rod (55) is fixedly connected to a clamping cylinder (56).

7. The wear resistance testing device for automobile brake pads according to claim 6, characterized in that: One side of the upper end of the support frame (6) is fixedly connected to a motor four (33), and the output end of the motor four (33) is fixedly connected to one end of the transparent film roller (7). One side of the slide column (34) is provided with a spring (35), and one end of the spring (35) is fixedly connected to the upper end of the fixed rod (31), and the other end is fixedly connected to one end of the pressure roller (37). One side of the upper end of the cutting plate (30) is fixedly connected to a motor five (39), and the output end of the motor five (39) is fixedly connected to one end of the cutting knife (38).

8. The wear resistance testing device for automobile brake pads according to claim 6, characterized in that: A gear (54) is rotatably provided on one side of the upper end of the pillar (28), and the gear (54) is meshed with a tooth block on the rack rod (55). A motor eight (53) is fixedly connected to one side of the upper end of the pillar (28), and the output end of the motor eight (53) is fixedly connected to the gear (54).

9. The wear resistance testing device for automobile brake pads according to claim 6, characterized in that: One side of the upper end face of the detection table (1) is fixedly connected with a guide plate three (4), one side of the guide plate three (4) is installed with a screw guide rail three (26), a guide plate four (5) is slidably provided on the screw guide rail three (26), a bidirectional screw guide rail one (27) is installed on the guide plate four (5), both sides of the bidirectional screw guide rail one (27) are slidably connected with a slider two (42), one side of the slider two (42) is rotatably provided with a rotating shaft (43), one end of the rotating shaft (43) is fixedly connected with an adjustment block (44), a bidirectional screw guide rail three (46) is installed on the adjustment block (44), both sides of the bidirectional screw guide rail three (46) are slidably connected with an expansion block (47), a limit block (50) is rotatably provided at the groove of the expansion block (47), and a blade (48) is fixedly connected to the middle of the lower end face of the adjustment block (44).

10. The wear resistance testing device for automobile brake pads according to claim 9, characterized in that: One side of the slider 2 (42) is fixedly connected to a motor 7 (52), and the output end of the motor 7 (52) is fixedly connected to one end of the rotating shaft (43). One side of the expansion block (47) is fixedly connected to a motor 6 (51), and the output end of the motor 6 (51) is fixedly connected to one end of the limit block (50).

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