Automobile brake pad surface defect detection equipment

Abstract

The invention discloses automobile brake pad surface defect detection equipment, and relates to the technical field of machine vision detection.The automobile brake pad surface defect detection equipment comprises a brake pad fixing mechanism and an adjusting motor installed in the brake pad fixing mechanism, a detection mechanism is arranged at the top of the brake pad fixing mechanism, and machine vision detection equipment is arranged in the detection mechanism; the brake pad fixing mechanism comprises a fixing workbench, supporting legs are fixedly installed on the periphery of the bottom of the fixing workbench, a supporting bottom plate is arranged at the bottoms of the supporting legs, a supporting cover is fixedly installed on the top of the supporting bottom plate, and a clamping support is fixedly installed on the inner side of the top of the supporting cover. Clamping sliding grooves are formed in the periphery of the interior of the clamping support, an adjusting fixing disc is fixedly installed at the center position of the bottom of the clamping support, through arrangement of an inner diameter rotating plate and an outer diameter rotating plate, the automobile brake pad surface defect detection device can adapt to automobile brake pads with different radians, and the stability of automobile brake pad surface defect detection is improved.

Description

Technical Field

[0001] The invention relates to the technical field of machine vision detection, in particular to a surface defect detection device for automobile brake pads. Background Art

[0002] Machine vision is a type of technology that is widely used in modern society's more intelligent equipment. It can replace manual measurement and judgment. In the field of automobile manufacturing, machine vision-controlled inspection equipment is used to inspect the processing quality of automobile parts, replacing manual inspection one by one and reducing labor intensity. After the automobile brake pads are manufactured and formed, in order to ensure the quality and safety of the brake pads, it is necessary to inspect the surface defects of the brake pads, such as cracks, ruptures, scratches, defects, indentations and burrs.

[0003] Announcement No. CN213842997U discloses a machine vision-based automobile brake pad surface defect detection device, which adjusts the position of an adjustable locking structure composed of a locking rod and a spring column, and at the same time toggles the rear extension rod to move, and uses a linkage structure composed of a traction rope and a fixed pulley to synchronously drive the front extension rod to move, thereby controlling the movement of a first locking plate and a second locking plate, and using the first locking plate and the second locking plate to quickly position the brake pad, and the adjustable locking structure can limit the position of the first locking plate and the second locking plate to ensure the stability of the brake pad positioning, and can conveniently detect the brake pad, improve the flexibility of the device, control the motor to drive the adjustment frame to rotate, thereby controlling the rotation of the brake pad, and comprehensively detecting the brake pad, and driving the electric telescopic rod to adjust the distance between the brake pad and the machine vision detection mechanism, and adjust the clarity of the brake pad detection process, but the patent still has the following problems in actual use:

[0004] Although the automobile brake pad surface defect detection device based on machine vision adjusts the position of the adjustable locking structure composed of the locking rod and the spring column, and simultaneously moves the rear extension rod, and uses the linkage structure composed of the traction rope and the fixed pulley to synchronously drive the front extension rod to move, thereby controlling the movement of the first locking plate and the second locking plate, and using the first locking plate and the second locking plate to quickly position the brake pad, due to the different diameters of the tire and the brake pad, the size of the brake pad is different, resulting in different inner diameter and outer diameter curvatures of the brake pad. It is impossible to clamp and fix automobile brake pads with different curvatures, affecting the stability of automobile brake pad detection.

[0005] Therefore, a kind of automobile brake pad surface defect detection equipment is proposed to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a surface defect detection device for automobile brake pads to solve the problem raised in the above background technology that due to the different diameters of tires and brake pads, the sizes of brake pads are different, resulting in different inner and outer diameter curvatures of the brake pads, and automobile brake pads with different curvatures cannot be clamped and fixed, affecting the stability of automobile brake pad detection.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automobile brake pad surface defect detection device, comprising a brake pad fixing mechanism, and an adjustment motor installed inside the brake pad fixing mechanism;

[0008] A detection mechanism is provided on the top of the brake pad fixing mechanism, and a machine vision detection device is provided inside the detection mechanism;

[0009] Also includes:

[0010] The brake pad fixing mechanism comprises a fixed workbench, support legs are fixedly installed around the bottom of the fixed workbench, and a support base plate is arranged at the bottom of the support legs;

[0011] Wherein, a support cover is fixedly installed on the top of the support base plate, and a clamping bracket is fixedly installed on the inner side of the top of the support cover;

[0012] Wherein, clamping grooves are provided around the inside of the clamping bracket, and an adjusting fixing plate is fixedly installed at the center position of the bottom of the clamping bracket.

[0013] Preferably, the bottom of the adjustment fixed plate is fixedly installed with adjustment support columns, the bottom of the adjustment support columns is fixedly installed with an adjustment threaded bracket, the inner periphery of the adjustment threaded bracket is slidably connected with a first adjustment sliding rod, the top of the first adjustment sliding rod is fixedly installed with a first sliding plate, the adjustment motor is fixedly installed at the top center position of the first sliding plate, the output end of the adjustment motor is fixedly connected with an adjustment threaded rod, and the bottom of the adjustment threaded rod is rotatably connected with a second sliding plate.

[0014] Preferably, the second sliding disk is fixedly mounted on the bottom of the first adjusting sliding rod, the adjusting threaded rod is threadedly connected to the adjusting threaded bracket, a clamping sliding disk is fixedly mounted on the bottom of the second sliding disk, the top of the clamping sliding disk is rotatably connected to the first clamping rotating rod, the top of the first clamping rotating rod is rotatably connected to the first clamping sliding sleeve, and a first clamping spring is fixedly mounted on one side of the first clamping sliding sleeve.

[0015] Preferably, a second clamping sliding sleeve is fixedly installed on a side of the first clamping spring away from the first clamping sliding sleeve, the bottom of the second clamping sliding sleeve is rotatably connected to a second clamping rotating rod, the bottom of the second clamping rotating rod is rotatably connected to a connecting bracket, the connecting bracket is fixedly installed on the four sides of the first sliding disk, the first clamping sliding sleeve and the second clamping sliding sleeve are internally slidably connected to a clamping sliding rod, and the clamping sliding rod is fixedly installed inside the clamping slide groove.

[0016] Preferably, the top of the second clamping sliding sleeve is symmetrically rotatably connected to a clamping rotating shaft, an inner diameter rotating plate is fixedly installed on the outer side of the clamping rotating shaft, one side of the two inner diameter rotating plates are both rotatably connected to a clamping rotating support, a second clamping spring is fixedly installed between the two clamping rotating supports, and a fixed clamping plate is fixedly installed on the top of the first clamping sliding sleeve.

[0017] Preferably, both sides of the fixed clamping plate are symmetrically rotatably connected with a third clamping rotating rod and a clamping rotating bracket, a second adjusting sliding rod is fixedly installed on an inner side of the clamping rotating bracket, the outer side of the second adjusting sliding rod is slidably connected with a first adjusting sliding sleeve, the outer side of the first adjusting sliding sleeve is rotatably connected with a fourth clamping rotating rod, the end of the fourth clamping rotating rod is rotatably connected with an outer diameter rotating plate, and a third clamping spring is fixedly installed on one side of the first adjusting sliding sleeve.

[0018] Preferably, the detection mechanism includes a lifting sliding rod, which is fixedly installed on the top of the fixed workbench, a lifting top plate is fixedly installed on the top of the lifting sliding rod, a lifting cylinder is fixedly installed at the bottom center of the lifting top plate, a lifting plate is fixedly connected to the bottom of the lifting cylinder, a lifting sliding sleeve is fixedly installed on the four sides of the lifting plate, and the lifting sliding sleeve is slidably connected to the lifting sliding rod.

[0019] Preferably, a detection rotating bracket is symmetrically installed on one side of the bottom of the lifting plate, a rotating motor is fixedly installed on one side of the detection rotating bracket, an output end of the rotating motor is fixedly connected with a rotating worm, one side of the rotating worm is meshingly connected with a rotating worm wheel, an opening and closing bracket is fixedly installed on the bottom of the rotating worm wheel, an opening and closing motor is fixedly installed on one side of the opening and closing bracket, an opening and closing bidirectional threaded rod is fixedly connected to the output end of the opening and closing motor, an opening and closing bidirectional threaded rod is symmetrically threadedly connected to an opening and closing threaded sleeve on the outer side of the opening and closing bidirectional threaded rod, and an opening and closing limit plate is fixedly installed on the bottom of the two opening and closing threaded sleeves.

[0020] Preferably, a mounting bracket is fixedly installed at the bottom of the opening and closing limit plate, a vertical mounting groove is opened at the bottom center position of the mounting bracket, and a horizontal limit groove is symmetrically opened at the top of the mounting bracket near the vertical mounting groove, and a locking spring is fixedly installed inside the two horizontal limit grooves, and a locking block is fixedly installed at the end of the locking spring, and the interior of the horizontal limit groove is slidably connected to a limit slider, and a connecting sliding column is fixedly installed between the two limit sliders, and the machine vision inspection equipment is fixedly installed on the bottom of the connecting sliding column, and a plurality of compression springs are fixedly installed on the bottom of the mounting bracket, and a compression ring is fixedly installed on the bottom of the compression spring, and the compression ring is fit-connected to the top of the machine vision inspection equipment.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the automobile brake pad surface defect detection device can adapt to automobile brake pads with different curvatures through the arrangement of the inner diameter rotating plate and the outer diameter rotating plate, thereby improving the stability of automobile brake pad surface defect detection, and the machine vision detection device is clamped and fixed by the clamping spring and the clamping ring, thereby improving the installation stability of the machine vision detection device, and different machine vision detection devices can be replaced according to the needs of detection. The specific contents are as follows:

[0022] 1. By setting the brake pad fixing mechanism, not only can the adjusting motor be used to drive the adjusting threaded rod to rotate, so that the adjusting threaded bracket can rotate on the outer thread of the adjusting threaded rod; since the adjusting threaded bracket is fixedly connected to the adjusting fixed plate through the adjusting support column, the adjusting threaded rod drives the first sliding plate, the first adjusting sliding rod and the second sliding plate to move up and down, and the second sliding plate drives the clamping sliding plate to descend and drives the first clamping rotating rod to rotate at the same time, so that the first clamping sliding sleeve slides inwardly on the outer side of the clamping sliding rod. At the same time, the first sliding plate drives the connecting bracket to descend while the first sliding plate descends, so that the connecting bracket drives the second clamping rotating rod to rotate, so that the second clamping sliding sleeve slides outwardly on the outer side of the clamping sliding rod, and the first clamping sliding sleeve drives the fixed clamping plate to slide inwardly, and the second clamping The sliding sleeve drives the clamping rotating shaft and the inner diameter rotating plate to slide outward, thereby clamping and fixing the automobile brake pad. The inner diameter rotating plate can be rotated by using the clamping rotating shaft and the second clamping spring, and can adapt to brake pads with different inner sides. The first adjusting sliding sleeve can slide on the outer side of the second adjusting sliding rod through the elastic force of the third clamping spring, so that the fourth clamping rotating rod drives the outer diameter rotating plate to rotate, thereby adapting to automobile brake pads with different outer diameters. Since the tire and the brake pad have different diameters, the size of the brake pad is different, resulting in different inner diameter curvature and outer diameter curvature of the brake pad. The arrangement of the inner diameter rotating plate and the outer diameter rotating plate can adapt to automobile brake pads with different curvatures, thereby improving the stability of surface defect detection of automobile brake pads.

[0023] 2. By setting up the detection mechanism, not only can the lifting cylinder be used to drive the lifting plate to move up and down, so as to adjust the distance between the machine vision detection equipment and the automobile brake pad, which is convenient for detecting defects on the surface of the automobile brake pad, but also the rotating motor drives the rotating worm to rotate, and the meshing connection between the rotating worm and the rotating worm wheel is used to realize the horizontal rotation of the opening and closing bracket, and at the same time, the opening and closing motor is started to drive the opening and closing bidirectional threaded rod to rotate, so that the two opening and closing threaded sleeves drive the opening and closing limit plates and the mounting bracket to move relative to each other, so as to adjust the distance between the two machine vision detection equipment, which is convenient for all-round detection of the surface of the automobile brake pad, and at the same time, the uninterrupted detection of the automobile brake pad can be realized, and the detection efficiency can be improved. By connecting the sliding column and the vertical mounting groove, the connecting sliding column can be installed inside the mounting bracket, and the connecting sliding column can be rotated horizontally, so that the limit slider slides inside the horizontal limit groove, and the limit slider is limited by the clamping block, and the machine vision detection equipment is clamped and fixed by the clamping spring and the clamping ring, so as to improve the installation stability of the machine vision detection equipment, and different machine vision detection equipment can be replaced according to the needs of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the cross section of the brake pad fixing mechanism in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the cross section of the clamping bracket in the present invention;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of the adjusting fixed disk and the second sliding disk in the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping sliding disk in the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner diameter rotating plate and the fixed clamping plate in the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the cross section of the clamping and rotating bracket in the present invention;

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the detection mechanism in the present invention;

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating worm and the rotating worm wheel in the present invention;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the cross section of the opening and closing bracket in the present invention;

[0034] Fig.11 It is a schematic diagram of the three-dimensional structure of the cross section of the mounting bracket in the present invention.

[0035] In the figure: 1. brake pad fixing mechanism; 101. fixed workbench; 102. support leg; 103. support bottom plate; 104. support cover; 105. clamping bracket; 106. clamping slide; 107. adjustment fixing plate; 108. adjustment support column; 109. adjustment threaded bracket; 110. first adjustment sliding rod; 111. first sliding plate; 112. adjustment motor; 113. adjustment threaded rod; 114. second sliding plate; 115 , clamping sliding plate; 116, first clamping rotating rod; 117, first clamping sliding sleeve; 118, first clamping spring; 119, second clamping sliding sleeve; 120, second clamping rotating rod; 121, connecting bracket; 122, clamping sliding rod; 123, clamping rotating shaft; 124, inner diameter rotating plate; 125, clamping rotating support; 126, second clamping spring; 127, fixed clamping plate; 128, third clamping rotating rod; 12 9. Clamping rotating bracket; 130. Second adjusting sliding rod; 131. First adjusting sliding sleeve; 132. Fourth clamping rotating rod; 133. Third clamping spring; 134. Outer diameter rotating plate; 2. Detection mechanism; 201. Lifting sliding rod; 202. Lifting top plate; 203. Lifting cylinder; 204. Lifting plate; 205. Lifting sliding sleeve; 206. Detection rotating bracket; 207. Rotating motor; 208. Rotating worm; 209 , rotating worm gear; 210, opening and closing bracket; 211, opening and closing motor; 212, opening and closing bidirectional threaded rod; 213, opening and closing threaded sleeve; 214, opening and closing limit plate; 215, mounting bracket; 216, vertical mounting groove; 217, horizontal limit groove; 218, locking spring; 219, locking block; 220, limit slider; 221, connecting sliding column; 222, machine vision inspection equipment; 223, clamping spring; 224, clamping ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 11The present invention provides a technical solution: a vehicle brake pad surface defect detection device, comprising a brake pad fixing mechanism 1, and an adjusting motor 112 installed inside the brake pad fixing mechanism 1, a detection mechanism 2 is arranged on the top of the brake pad fixing mechanism 1, and a machine vision detection device 222 is arranged inside the detection mechanism 2, the brake pad fixing mechanism 1 comprises a fixed workbench 101, support legs 102 are fixedly installed around the bottom of the fixed workbench 101, a support base plate 103 is arranged at the bottom of the support legs 102, wherein a support cover 104 is fixedly installed on the top of the support base plate 103, and a clamping bracket 105 is fixedly installed on the inner side of the top of the support cover 104, wherein a clamping slide groove 106 is opened around the inside of the clamping bracket 105, and a clamping slide groove 106 is opened around the inside of the clamping bracket 105. An adjusting fixed plate 107 is fixedly installed at the bottom center position of the holding bracket 105, and an adjusting support column 108 is fixedly installed around the bottom of the adjusting fixed plate 107, and an adjusting threaded bracket 109 is fixedly installed at the bottom of the adjusting support column 108. A first adjusting sliding rod 110 is slidably connected to the inner periphery of the adjusting threaded bracket 109, and a first sliding plate 111 is fixedly installed on the top of the first adjusting sliding rod 110. An adjusting motor 112 is fixedly installed at the top center position of the first sliding plate 111, and an adjusting threaded rod 113 is fixedly connected to the output end of the adjusting motor 112. The bottom of the adjusting threaded rod 113 is rotatably connected to a second sliding plate 114, and the second sliding plate 114 is fixedly installed at the bottom of the first adjusting sliding rod 110. The rod 113 is threadedly connected to the adjusting threaded bracket 109, a clamping sliding disc 115 is fixedly installed at the bottom of the second sliding disc 114, a first clamping rotating rod 116 is rotatably connected to the top of the clamping sliding disc 115, a first clamping sliding sleeve 117 is rotatably connected to the top of the first clamping rotating rod 116, a first clamping sliding sleeve 117 is fixedly installed on one side of the first clamping sliding sleeve 117, a second clamping sliding sleeve 119 is fixedly installed on the side of the first clamping spring 118 away from the first clamping sliding sleeve 117, a second clamping rotating rod 120 is rotatably connected to the bottom of the second clamping sliding sleeve 119, a connecting bracket 121 is fixedly installed on the first sliding disc 111 Around, the first clamping sliding sleeve 117 and the second clamping sliding sleeve 119 are internally slidably connected with a clamping sliding rod 122, and the clamping sliding rod 122 is fixedly installed inside the clamping slide groove 106. The top of the second clamping sliding sleeve 119 is symmetrically rotatably connected with a clamping rotating shaft 123, and an inner diameter rotating plate 124 is fixedly installed on the outer side of the clamping rotating shaft 123. The adjusting motor 112 drives the adjusting threaded rod 113 to rotate, so that the adjusting threaded bracket 109 rotates on the outer side of the adjusting threaded rod 113. Since the adjusting threaded bracket 109 is fixedly connected to the adjusting fixed disk 107 through the adjusting support column 108, the adjusting threaded rod 113 drives the first sliding disk 111, the first adjusting sliding rod 110 and the second sliding disk 114 to move up and down.The second sliding plate 114 drives the clamping sliding plate 115 to descend and drives the first clamping rotating rod 116 to rotate, so that the first clamping sliding sleeve 117 slides inwardly on the outside of the clamping sliding rod 122. At the same time, the first sliding plate 111 descends and drives the connecting bracket 121 to descend, so that the connecting bracket 121 drives the second clamping rotating rod 120 to rotate, so that the second clamping sliding sleeve 119 slides outwardly on the outside of the clamping sliding rod 122. The first clamping sliding sleeve 117 drives the fixed clamping plate 127 to slide inwardly, and the second clamping sliding sleeve 119 drives the clamping rotating shaft 123 and the inner diameter rotating plate 124 to slide outwardly, thereby clamping and fixing the automobile brake pad.

[0038] One side of the two inner diameter rotating plates 124 is rotatably connected with a clamping rotating support 125, a second clamping spring 126 is fixedly installed between the two clamping rotating supports 125, a fixed clamping plate 127 is fixedly installed on the top of the first clamping sliding sleeve 117, both sides of the fixed clamping plate 127 are symmetrically rotatably connected with a third clamping rotating rod 128 and a clamping rotating bracket 129, a second adjusting sliding rod 130 is fixedly installed on an inner side of the clamping rotating bracket 129, the outer side of the second adjusting sliding rod 130 is slidably connected with the first adjusting sliding sleeve 131, the outer side of the first adjusting sliding sleeve 131 is rotatably connected with a fourth clamping rotating rod 132, the end of the fourth clamping rotating rod 132 is rotatably connected with an outer diameter rotating plate 134, and one side of the first adjusting sliding sleeve 131 is fixedly installed A third clamping spring 133 is installed, and the inner diameter rotating plate 124 can be rotated by utilizing the clamping rotating shaft 123 and the second clamping spring 126, so as to adapt to brake pads with different inner sides. Through the elastic force of the third clamping spring 133, the first adjusting sliding sleeve 131 can slide on the outer side of the second adjusting sliding rod 130, so that the fourth clamping rotating rod 132 drives the outer diameter rotating plate 134 to rotate, so as to adapt to automobile brake pads with different outer diameters. Since the tire and the brake pad have different diameters, the size of the brake pad is different, resulting in different inner diameter curvature and outer diameter curvature of the brake pad. Through the setting of the inner diameter rotating plate 124 and the outer diameter rotating plate 134, it is possible to adapt to automobile brake pads with different curvatures, thereby improving the stability of surface defect detection of automobile brake pads.

[0039] The detection mechanism 2 includes a lifting sliding rod 201, which is fixedly installed around the top of the fixed workbench 101, a lifting top plate 202 is fixedly installed on the top of the lifting sliding rod 201, a lifting cylinder 203 is fixedly installed at the bottom center of the lifting top plate 202, a lifting plate 204 is fixedly connected to the bottom of the lifting cylinder 203, and a lifting sliding sleeve 205 is fixedly installed around the lifting plate 204, and the lifting sliding sleeve 205 is slidably connected to the lifting sliding rod 201, and the lifting plate 204 is fixedly connected to the lifting sliding rod 201. A detection rotating bracket 206 is symmetrically installed on one side of the bottom, a rotating motor 207 is fixedly installed on one side of the detection rotating bracket 206, a rotating worm 208 is fixedly connected to the output end of the rotating motor 207, a rotating worm 208 is meshedly connected to one side of the rotating worm 208, an opening and closing bracket 210 is fixedly installed on the bottom of the rotating worm wheel 209, an opening and closing motor 211 is fixedly installed on one side of the opening and closing bracket 210, an opening and closing bidirectional threaded rod 212 is fixedly connected to the output end of the opening and closing motor 211, and the opening and closing bidirectional threaded rod 212 is fixedly connected to the output end of the opening and closing motor 211. The outer side of the threaded rod 212 is symmetrically threadedly connected with an opening and closing threaded sleeve 213, and the bottom of the two opening and closing threaded sleeves 213 is fixedly installed with an opening and closing limit plate 214, and the bottom of the opening and closing limit plate 214 is fixedly installed with a mounting bracket 215. The lifting cylinder 203 is used to drive the lifting plate 204 to move up and down, so as to adjust the distance between the machine vision inspection equipment 222 and the automobile brake pad, so as to facilitate the detection of defects on the surface of the automobile brake pad. The rotating motor 207 drives the rotating worm 208 to rotate, and the characteristics of the meshing connection between the rotating worm 208 and the rotating worm wheel 209 are used to realize the horizontal rotation of the opening and closing bracket 210. At the same time, the opening and closing motor 211 is started to drive the opening and closing bidirectional threaded rod 212 to rotate, so that the two opening and closing threaded sleeves 213 drive the opening and closing limit plate 214 and the mounting bracket 215 to move relative to each other, so as to adjust the distance between the two machine vision inspection equipment 222, so as to facilitate the all-round detection of the surface of the automobile brake pad, and at the same time, the uninterrupted detection of the automobile brake pad can be realized, thereby improving the detection efficiency.

[0040] A vertical mounting groove 216 is provided at the center of the bottom of the mounting bracket 215, and horizontal limit grooves 217 are symmetrically provided near the top of the vertical mounting groove 216 of the mounting bracket 215. A locking spring 218 is fixedly installed inside the two horizontal limit grooves 217, and a locking block 219 is fixedly installed at the end of the locking spring 218. The interior of the horizontal limit groove 217 is slidably connected to a limit slider 220, and a connecting sliding column 221 is fixedly installed between the two limit sliders 220. A machine vision inspection device 222 is fixedly installed at the bottom of the connecting sliding column 221. A plurality of compression springs 223 are fixedly installed at the bottom of the mounting bracket 215, and the bottom of the compression spring 223 is fixedly installed. There is a clamping ring 224, which is fitted and connected to the top of the machine vision inspection device 222. By connecting the sliding column 221 and slidingly connecting the vertical mounting groove 216, the connecting sliding column 221 can be installed inside the mounting bracket 215, and the connecting sliding column 221 can be horizontally rotated to make the limit slider 220 slide inside the horizontal limit groove 217, and the locking block 219 is used to limit the limit slider 220. The machine vision inspection device 222 is clamped and fixed by the clamping spring 223 and the clamping ring 224, so as to improve the installation stability of the machine vision inspection device 222, and different machine vision inspection devices 222 can be replaced according to the needs of inspection.

[0041] Working principle: Before using this automobile brake pad surface defect detection equipment, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11 As shown, first, the automobile brake pad is placed on the clamping bracket 105, and the adjusting motor 112 is used to drive the adjusting threaded rod 113 to rotate, so that the adjusting threaded bracket 109 is threadedly rotated on the outer side of the adjusting threaded rod 113. Since the adjusting threaded bracket 109 is fixedly connected to the adjusting fixed plate 107 through the adjusting support column 108, the adjusting threaded rod 113 drives the first sliding plate 111, the first adjusting sliding rod 110 and the second sliding plate 114 to move up and down, and the second sliding plate 114 drives the clamping sliding plate 115 to descend and drives the first clamping rotating rod 116 to rotate, so that the first clamping sliding sleeve 117 is rotated on the clamping sliding rod 122. The outer side slides inward, and at the same time, the first sliding plate 111 descends, driving the connecting bracket 121 to descend, so that the connecting bracket 121 drives the second clamping rotating rod 120 to rotate, and the second clamping sliding sleeve 119 slides outward on the outside of the clamping sliding rod 122, and the first clamping sliding sleeve 117 drives the fixed clamping plate 127 to slide inward, and the second clamping sliding sleeve 119 drives the clamping rotating shaft 123 and the inner diameter rotating plate 124 to slide outward, thereby clamping and fixing the automobile brake pads, and the clamping rotating shaft 123 and the second clamping spring 126 can realize the rotation of the inner diameter rotating plate 124, which can adapt to brake pads with different inner sides.

[0042] Secondly, through the elastic force of the third clamping spring 133, the first adjusting sliding sleeve 131 can slide on the outside of the second adjusting sliding rod 130, so that the fourth clamping rotating rod 132 drives the outer diameter rotating plate 134 to rotate, so as to adapt to automobile brake pads with different outer diameters. Since the tires and brake pads have different diameters, the sizes of the brake pads are different, resulting in different inner diameter curvature and outer diameter curvature of the brake pads. The setting of the inner diameter rotating plate 124 and the outer diameter rotating plate 134 can adapt to automobile brake pads with different curvatures, thereby improving the stability of surface defect detection of automobile brake pads.

[0043] Finally, the lifting cylinder 203 is used to drive the lifting plate 204 to move up and down, so as to adjust the distance between the machine vision inspection equipment 222 and the automobile brake pad, so as to facilitate the detection of defects on the surface of the automobile brake pad. The rotating motor 207 drives the rotating worm 208 to rotate, and the meshing connection between the rotating worm 208 and the rotating worm wheel 209 is used to realize the horizontal rotation of the opening and closing bracket 210. At the same time, the opening and closing motor 211 is started to drive the opening and closing bidirectional threaded rod 212 to rotate, so that the two opening and closing threaded sleeves 213 drive the opening and closing limit plates 214 and the mounting bracket 215 to move relative to each other, so as to adjust the distance between the two machine vision inspection equipment 222, so as to facilitate the detection of defects on the surface of the automobile brake pad. All-round detection of the surface can be achieved, and uninterrupted detection of automobile brake pads can be realized at the same time, thereby improving the detection efficiency. Through the characteristics of the sliding connection between the connecting sliding column 221 and the vertical mounting groove 216, the connecting sliding column 221 can be installed inside the mounting bracket 215, and the connecting sliding column 221 can be horizontally rotated to make the limit slider 220 slide inside the horizontal limit groove 217, and the locking block 219 is used to limit the limit slider 220, and the machine vision detection equipment 222 is clamped and fixed by the clamping spring 223 and the clamping ring 224, thereby improving the installation stability of the machine vision detection equipment 222, and different machine vision detection equipment 222 can be replaced according to the detection needs.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. 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 vehicle brake pad surface defect detection device, comprising a brake pad fixing mechanism (1), and an adjustment motor (112) installed inside the brake pad fixing mechanism (1); A detection mechanism (2) is arranged on the top of the brake pad fixing mechanism (1), and a machine vision detection device (222) is arranged inside the detection mechanism (2); It is characterized in that Also includes: The brake pad fixing mechanism (1) comprises a fixed workbench (101), support legs (102) are fixedly installed around the bottom of the fixed workbench (101), and a support base plate (103) is provided at the bottom of the support legs (102); Wherein, a support cover (104) is fixedly mounted on the top of the support base plate (103), and a clamping bracket (105) is fixedly mounted on the inner side of the top of the support cover (104); The clamping bracket (105) is provided with clamping grooves (106) around its interior, and an adjustment fixing plate (107) is fixedly mounted at the center of the bottom of the clamping bracket (105).

2. The automobile brake pad surface defect detection device according to claim 1 is characterized in that: An adjusting support column (108) is fixedly mounted around the bottom of the adjusting fixed disk (107), an adjusting threaded bracket (109) is fixedly mounted on the bottom of the adjusting support column (108), a first adjusting sliding rod (110) is slidably connected to the inside of the adjusting threaded bracket (109), a first sliding disk (111) is fixedly mounted on the top of the first adjusting sliding rod (110), the adjusting motor (112) is fixedly mounted at the top center position of the first sliding disk (111), an adjusting threaded rod (113) is fixedly connected to the output end of the adjusting motor (112), and a second sliding disk (114) is rotatably connected to the bottom of the adjusting threaded rod (113).

3. The automobile brake pad surface defect detection device according to claim 2 is characterized in that: The second sliding plate (114) is fixedly mounted on the bottom of the first adjusting sliding rod (110), the adjusting threaded rod (113) is threadedly connected to the adjusting threaded bracket (109), a clamping sliding plate (115) is fixedly mounted on the bottom of the second sliding plate (114), the top of the clamping sliding plate (115) is rotatably connected to a first clamping rotating rod (116), the top of the first clamping rotating rod (116) is rotatably connected to a first clamping sliding sleeve (117), and a first clamping spring (118) is fixedly mounted on one side of the first clamping sliding sleeve (117).

4. The automobile brake pad surface defect detection device according to claim 3 is characterized in that: A second clamping sliding sleeve (119) is fixedly mounted on one side of the first clamping spring (118) away from the first clamping sliding sleeve (117); the bottom of the second clamping sliding sleeve (119) is rotatably connected to a second clamping rotating rod (120); the bottom of the second clamping rotating rod (120) is rotatably connected to a connecting bracket (121); the connecting bracket (121) is fixedly mounted around the first sliding plate (111); the first clamping sliding sleeve (117) and the second clamping sliding sleeve (119) are internally slidably connected to a clamping sliding rod (122); the clamping sliding rod (122) is fixedly mounted inside the clamping slide groove (106).

5. The automobile brake pad surface defect detection device according to claim 4 is characterized in that: The top of the second clamping sliding sleeve (119) is symmetrically rotatably connected to a clamping rotating shaft (123), an inner diameter rotating plate (124) is fixedly installed on the outer side of the clamping rotating shaft (123), one side of the two inner diameter rotating plates (124) are both rotatably connected to a clamping rotating support (125), a second clamping spring (126) is fixedly installed between the two clamping rotating supports (125), and a fixed clamping plate (127) is fixedly installed on the top of the first clamping sliding sleeve (117).

6. The automobile brake pad surface defect detection device according to claim 5, characterized in that: Both sides of the fixed clamping plate (127) are symmetrically rotatably connected to a third clamping rotating rod (128) and a clamping rotating bracket (129); a second adjusting sliding rod (130) is fixedly installed on one side of the interior of the clamping rotating bracket (129); the outer side of the second adjusting sliding rod (130) is slidably connected to a first adjusting sliding sleeve (131); the outer side of the first adjusting sliding sleeve (131) is rotatably connected to a fourth clamping rotating rod (132); the end of the fourth clamping rotating rod (132) is rotatably connected to an outer diameter rotating plate (134); and a third clamping spring (133) is fixedly installed on one side of the first adjusting sliding sleeve (131).

7. The automobile brake pad surface defect detection device according to claim 1, characterized in that: The detection mechanism (2) comprises a lifting sliding rod (201), the lifting sliding rod (201) being fixedly mounted around the top of a fixed workbench (101), a lifting top plate (202) being fixedly mounted on the top of the lifting sliding rod (201), a lifting cylinder (203) being fixedly mounted at the center position of the bottom of the lifting top plate (202), a lifting plate (204) being fixedly connected to the bottom of the lifting cylinder (203), a lifting sliding sleeve (205) being fixedly mounted around the lifting plate (204), and the lifting sliding sleeve (205) being slidably connected to the lifting sliding rod (201).

8. The automobile brake pad surface defect detection device according to claim 7 is characterized in that: A detection rotating bracket (206) is symmetrically mounted on one side of the bottom of the lifting plate (204); a rotating motor (207) is fixedly mounted on one side of the detection rotating bracket (206); a rotating worm (208) is fixedly connected to the output end of the rotating motor (207); a rotating worm (208) is meshingly connected to a rotating worm wheel (209) on one side of the rotating worm (208); an opening and closing bracket (210) is fixedly mounted on the bottom of the rotating worm wheel (209); an opening and closing motor (211) is fixedly mounted on one side of the opening and closing bracket (210); an opening and closing bidirectional threaded rod (212) is fixedly connected to the output end of the opening and closing motor (211); an opening and closing threaded sleeve (213) is symmetrically threadedly connected to the outer side of the opening and closing bidirectional threaded rod (212); and an opening and closing limit plate (214) is fixedly mounted on the bottom of each of the two opening and closing threaded sleeves (213).

9. The automobile brake pad surface defect detection device according to claim 8, characterized in that: A mounting bracket (215) is fixedly mounted on the bottom of the opening and closing limit plate (214); a vertical mounting groove (216) is provided at the center of the bottom of the mounting bracket (215); horizontal limit grooves (217) are symmetrically provided on the top of the mounting bracket (215) near the vertical mounting groove (216); a locking spring (218) is fixedly mounted inside the two horizontal limit grooves (217); a locking block (219) is fixedly mounted on the end of the locking spring (218); and the horizontal limit groove (21 7) is internally slidably connected to a limit slider (220), a connecting sliding column (221) is fixedly installed between the two limit sliders (220), the machine vision detection device (222) is fixedly installed at the bottom of the connecting sliding column (221), a plurality of clamping springs (223) are fixedly installed at the bottom of the mounting bracket (215), a clamping ring (224) is fixedly installed at the bottom of the clamping spring (223), and the clamping ring (224) is fit-connected to the top of the machine vision detection device (222).

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