Brake disc defect detection device of automatic production line

Abstract

The invention relates to a brake disc defect detection device of an automatic production line, and relates to the related technical field of brake disc defect detection, and the brake disc defect detection device comprises a working platform, a rotating platform, an air tightness detection module, a placement disc, an electric drive turntable, a positioning piece, a pushing piece, an electric push rod, an edge detection module, a flatness detection module, a pointing piece, a bracket and a multi-degree-of-freedom manipulator, the device can solve the problems that the uneven position of the brake disc has difference and is impossible to estimate, the thickness measurement of the measurement screw after multiple displacements possibly has the condition of staggering with the uneven position, resulting in error of the measurement structure, and the measurement of the technology is not suitable for flow line production and is not suitable for large-scale production. And an uneven area is not marked, and subsequent personnel need to further detect the brake disc, so that the detection efficiency is relatively low, and the like.

Description

Technical Field

[0001] The present invention relates to the technical field related to brake disc defect detection, and in particular to a brake disc defect detection device for an automated production line. Background Art

[0002] The brake disc is a key component in the braking system of modern vehicles. It is responsible for converting the kinetic energy of the vehicle when it is driving into heat energy, thereby achieving deceleration or stopping. Brake discs are usually made of cast iron or composite materials, with high thermal conductivity and wear resistance. The working principle of the brake disc is similar to the brake system on a bicycle or skateboard, but more complicated. When the driver steps on the brake pedal, the hydraulic or pneumatic force in the brake system is transmitted to the brake caliper through the brake fluid or air. The brake pads in the brake caliper will press tightly against the brake disc, generating friction to slow down or stop the vehicle. When detecting defects in brake discs, it is necessary to detect their edges and flatness. Defects such as warping and bending of the brake disc edge may affect the braking performance, causing brake failure or increased braking distance. By detecting the edge of the brake disc, defective brake discs can be discovered and replaced in time to avoid safety accidents caused by brake disc failure. The flatness of the brake disc directly affects the wear uniformity of the brake pads. Uneven brake discs will cause local wear of the brake pads to increase, thereby affecting the braking effect. By testing the flatness of the brake disc, you can ensure uniform wear of the brake pads and improve the stability and reliability of the brake system.

[0003] Existing defect detection devices, such as the Chinese patent with publication number CN112033271B, disclose a vehicle brake disc flatness detection device, wherein two groups of measuring screws are symmetrically arranged on both sides of the upper part of the brake disc, the middle part of the measuring screw passes through the second threaded sleeve, the second threaded sleeve is threadedly matched with the measuring screw, the front end of the measuring screw is fixed with a rotating sleeve, the rear part of the rotating sleeve is covered on the outside of the front part of the second threaded sleeve, the outer surface of the second threaded sleeve is provided with a scale, the outer side of the rotating sleeve is provided with a scale value, the two groups of second threaded sleeves are symmetrically fixed to the lower end of the fixing frame, the lower end of the lifting screw is inserted into the bearing, the bearing is fixed at the center of the top of the fixing frame, the lifting screw is threadedly matched with the first threaded sleeve, the first threaded sleeve is fixed on the top fixing platform, the center positioning column is adapted to the center hole of the brake disc, and the first positioning pin and the first fixing bolt pass through the fixing bolt hole of the brake disc. The present invention has the advantages of high detection accuracy, low cost and strong adaptability.

[0004] In the above technology, the flat thickness of the brake disc is mainly measured by a measuring screw, and then the thickness of the brake disc at different radial positions is measured by lowering the height of the measuring screw multiple times, so as to determine whether the flatness of the brake disc can meet the use requirements. However, the uneven position of the brake disc is different and cannot be predicted. The thickness measurement of the measuring screw after multiple displacements may be misaligned with the uneven position, resulting in errors in the measurement structure. In addition, the measurement of the above technology is not suitable for assembly line production, and the uneven areas are not marked. Subsequent personnel need to conduct further inspections on the brake disc, and the inspection efficiency is low.

[0005] Based on this, there is still room for improvement on existing technologies. Summary of the invention

[0006] The purpose of the present invention is to provide a brake disc defect detection device for an automated production line to address the deficiencies in the above-mentioned prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions: A brake disc defect detection device for an automated production line comprises a working platform, the right end of which is provided with a rotatable rotating platform; an airtightness detection module, which is installed at the left end of the rotating platform; a placement plate, which is installed at the right end of the rotating platform, the middle of which is provided with an electric drive turntable with a controllable switch, the upper end of which is provided with a positioning member, and the positioning member positions the center position of the brake disc; a pushing member, which is connected to the left end of the placement plate through an electric push rod, the middle of which is provided with an edge detection module, and the irregular edge of the brake disc is color-marked through the edge detection module; a flatness detection module, which is installed at the lower end of the pushing member, and when the surface of the brake disc is uneven, the flatness detection module is triggered to disconnect the electric drive turntable again, and the positioning member stops rotating; a pointing member, which is installed at the upper end of the pushing member; a bracket, which is installed on the rotating platform, and the upper end of the bracket is connected to a multi-degree-of-freedom manipulator through an electric slider.

[0008] Among them, the electric drive turntable includes a rotating disk, which is horizontally rotated and arranged in the placement disk, the rotating disk is connected to the output shaft of the motor built into the placement disk, and the upper end of the rotating disk is coaxially connected to the positioning member; a trigger unit, which is installed in an insulating shell, the insulating shell is installed inside the placement disk, and the trigger unit, the motor and the power supply built into the insulating shell are electrically connected.

[0009] Among them, the trigger unit includes a conductive part 1, which is installed at the left end position of an open slot opened at the upper end of an insulating shell; an insulating block, which is horizontally slidably arranged at the right end position of the open slot, and the insulating block and the open slot are elastically connected, and a contact part is installed in the middle of the insulating block; a conductive part 2 is fixedly installed inside the insulating shell.

[0010] Among them, the edge detection module includes a movable frame, which is slidably mounted in the connecting rod up and down, and the connecting rod is installed in a sliding groove opened in the middle of the pushing member, and the movable frame and the sliding groove are elastically connected; a connecting cylinder, which is connected to the movable frame through a fixed plate, and the interior of the connecting cylinder is provided with an intermediate cavity, cavity one, and cavity two from top to bottom; a rotating cylinder, which is rotatably mounted on the outside of the connecting cylinder, and the rotating cylinder is fixedly installed in the middle of the left end of the detection member, and the upper and lower ends of the detection member are respectively rotatably connected to the movable frame through an elastic telescopic rod; a conveying unit, which is installed at the left end position of the pushing member, and the front and rear outer walls of the pushing member are respectively installed with output unit one and output unit two, and the position between the conveying unit and the intermediate cavity corresponds to that between the output unit one and the output unit two, and the output unit one is connected with cavity one through hose one, and the output unit two is connected with cavity two through hose two.

[0011] Among them, the right side of the connecting cylinder is provided with output port 1 and output port 2 in sequence from top to bottom, the right end of the rotating cylinder is provided with an alignment port, the middle part of the detection member is provided with a spray head, and the spray head is connected with the alignment port.

[0012] Among them, the left end of the connecting cylinder is provided with an entrance, and the entrance is connected to the middle cavity, the left end of the rotating cylinder is provided with a docking port, the middle part of the movable frame is provided with a straight groove, and a connecting pipe is connected between the right end of the straight groove and the docking port, and a telescopic tube is connected between the left end of the straight groove and the conveying unit.

[0013] Wherein, an alignment groove is symmetrically opened in the middle of the connecting rod, and the position of the alignment groove corresponds to the position of the straight-through groove.

[0014] Among them, the conveying unit and output unit 1 and output unit 2 are units with the same structure and size. The conveying unit includes a liquid storage frame, which is installed on the outer wall of the pushing member. A pressure cover is provided inside the liquid storage frame for sliding up and down. A telescopic tube is connected between the liquid storage frame and the left end of the straight-through groove.

[0015] Wherein, the liquid storage frame in the output unit 1 is connected to the cavity 1 through the hose 1, and the liquid storage frame in the output unit 2 is connected to the cavity 2 through the hose 2.

[0016] Among them, the flatness detection module includes an insulating frame, which is installed on the right side of the lower end of the pushing member; an insulating plate, which is slidably arranged inside the insulating frame, and conductive plates are arranged in sequence from left to right in the interlayer of the insulating plate; a detection unit, which is arranged between adjacent conductive plates; a conductive block, which is connected to the leftmost conductive plate with a wire, and the position of the conductive block corresponds to that of the conductive member; a conductive frame, which is installed at the lower end of the rightmost conductive plate, and the position of the conductive frame corresponds to that of the contact member; a lifting unit, which is installed in the built-in cavity opened in the pushing member, and the lifting unit is connected to the insulating plate.

[0017] Among them, the detection unit includes an insulating head, which is slidably arranged in an insulating frame up and down, a conductive head is installed at the lower end of the insulating head, and empty grooves are symmetrically opened at the upper and lower ends of the conductive head. The insulating layer arranged at the lower end of the conductive head is elastically connected to the insulating frame; a conductive connector, which is installed at the side end of the conductive plate, and the conductive head is located between the conductive connectors.

[0018] Among them, the lifting unit includes an electric push rod, which is installed in the built-in cavity, and the ejection end of the electric push rod is connected to the insulating plate; a control switch, which is installed in the built-in cavity, and the electric push rod, the control switch and the battery in the built-in cavity are electrically connected.

[0019] Among them, the control switch includes an insulating box, which is installed in a built-in cavity. A control part made of conductive material is arranged inside the insulating box for sliding up and down. The control part is a "mountain"-shaped structure. An insulating rod is connected between the upper end of the control part and the movable frame. The conductive contacts corresponding to the position of the control part are fixedly installed in the insulating box, and the conductive contacts, the electric push rod and the battery are electrically connected.

[0020] In summary, this application includes the following beneficial technical effects: The present invention provides a brake disc defect detection device for an automated production line. If the brake disc is not flat, its edge may be deformed. The present invention performs priority detection on the area at the edge of the brake disc. Specifically, the brake disc is clamped and placed on a positioning member for center positioning. Subsequently, the push member is driven to the right by an electric push rod until the edge detection module arrives at the work station and then triggers the electric drive turntable to rotate. The edge detection module detects the edge of the brake disc. When an unqualified brake disc is detected, its position is marked with liquid and the flatness detection module is triggered. At this time, the insulating plate and the conductive plate rise synchronously until the detection unit rises to the detection height. At this time, the brake disc is detected by the detection unit. The flatness of the lower surface is detected. When concave or convex conditions occur, the height of the detection unit corresponding to its position changes, thereby forming a short-circuit state at that position, so that the electric drive turntable is powered off as a whole, and the electric drive turntable can stop rotating. At this time, the pointing part is located directly above the uneven area of ​​the brake disc. The present application gives priority to detecting the edge of the brake disc. When a problem is found, the edge position is marked with liquid and the flatness detection module is triggered to further operate. When the flatness detection module contacts the uneven position, the electric drive turntable can be shut down to locate the uneven position. Compared with the prior art, the present application is suitable for assembly line production, and the detection efficiency is fast and high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2It is a schematic diagram of the positions of the placement plate, the electric drive turntable, the positioning member, the pushing member, the electric push rod, the edge detection module, the flatness detection module, the pointing member and the brake disc of the present invention; Figure 3 The present invention Figure 2 A cross-sectional view of Figure 4 The present invention Figure 3 A partial schematic diagram of Figure 5 It is a schematic diagram of the structure of the connecting cylinder, the fixing plate, the rotating cylinder, the detection member, the elastic telescopic rod, the hose 1 and the hose 2 of the present invention; Figure 6 The present invention Figure 3 A local enlarged view of point X; Figure 7 The present invention Figure 4 A local enlarged view of the Y position; Figure 8 The present invention Figure 4 A local enlarged view of the Z position; Fig. 9 The present invention Figure 4 A partial enlarged view of point A.

[0022] Explanation of the reference numerals: 1. working platform; 2. rotating platform; 3. air tightness detection module; 4. placing plate; 5. electric drive turntable; 6. positioning member; 7. pushing member; 71. electric push rod; 8. edge detection module; 9. flatness detection module; 10. pointing member; 11. bracket; 12. multi-degree-of-freedom manipulator; 51. rotating plate; 52. motor; 53. trigger unit; 54. insulating shell; 531. conductive member 1; 81. movable frame; 82. connecting rod; 83. connecting cylinder; 84. fixing plate; 85. rotating cylinder; 86. detection member; 87. elastic telescopic rod; 88. conveying unit; 89. hose 1; 90. hose 2; 91. insulating frame; 92. insulating plate; 93. conductive plate; 94. detection unit; 95. conductive member Electric block; 96, conductive frame; 97, lifting unit; 532, insulating block; 533, contact piece; 534, conductive piece 2; 831, middle cavity; 832, cavity 1; 833, cavity 2; 811, straight slot; 821, alignment slot; 834, output port 1; 835, output port 2; 836, entry port; 851, alignment port; 852, docking port; 861, spray head; 881, liquid storage frame; 882, pressure cover; 901, connecting pipe; 902, telescopic pipe; 941, insulating head; 942, conductive head; 943, vacant slot; 944, conductive connector; 971, electric push rod; 972, control switch; 9721, insulating box; 9722, control piece; 9723, insulating rod; 9724, conductive contact. DETAILED DESCRIPTION

[0023] The following is combined with Figures 1 to 9 This application is described in further detail.

[0024] The embodiment of the present application discloses a brake disc defect detection device for an automated production line. The present application detects the edge and flatness of the brake disc. When the edge is unqualified, it is marked with different colors. When the flatness is unqualified, the brake disc stops rotating and points to a position where the flatness does not meet the requirements.

[0025] Reference Figures 1 to 4 As shown, the present embodiment discloses a brake disc defect detection device for an automated production line, comprising a working platform 1, a rotating platform 2, an airtightness detection module 3, a placement plate 4, an electric drive turntable 5, a positioning member 6, a pushing member 7, an electric push rod 71, an edge detection module 8, a flatness detection module 9, a pointing member 10, a bracket 11, and a multi-degree-of-freedom manipulator 12. The working platform 1 is a fixed foundation, and a rotatable rotating platform 2 is installed at the right end of the working platform 1. The airtightness detection module 3 is installed at the left end of the rotating platform 2. (The airtightness detection module 3 is a prior art and can be a vehicle braking system. The vacuum booster is a component that uses vacuum to increase the force applied by the driver to the pedal. The vacuum booster with a brake master cylinder assembly is an important component in the automobile braking system. Inaccurate detection data directly causes misjudgment of the quality of components, and unqualified products flow into the market, which poses a great risk to automobile braking safety hazards. The airtightness detection module 3 can provide a high-pressure detection environment. Under the action of high pressure, the sealing state of the booster body can be quickly detected. Detection process In the process, the input end of the booster body is repeatedly pushed to realize the sealing detection test of the booster body during the working process. The placement plate 4 is installed at the right end of the rotating platform 2. The middle part of the placement plate 4 is installed with an electric drive turntable 5 with a controllable switch. The upper end of the electric drive turntable 5 is installed with a positioning member 6. The positioning member 6 positions the center position of the brake disc. The pusher 7 is connected to the left end of the placement plate 4 through an electric push rod 71. The middle part of the pusher 7 is installed with an edge detection module 8. The edge detection module 8 can detect irregular The edge of the brake disc is color-marked, the flatness detection module 9 is installed at the lower end of the pusher 7, when the surface of the brake disc is uneven, the flatness detection module 9 is triggered to disconnect it from the electric drive turntable 5 again, the positioning member 6 stops rotating, the pointing member 10 is installed at the upper end of the pusher 7, the bracket 11 is installed on the rotating platform 2, and the upper end of the bracket 11 is connected to the multi-degree-of-freedom manipulator 12 through an electric slider. The multi-degree-of-freedom manipulator 12 is a prior art and can be adjusted in multiple degrees of freedom to achieve the purpose of grasping and position adjustment.

[0026] In the actual detection process, the electric slider drives the multi-degree-of-freedom manipulator 12 to move to the upper position of the existing conveyor belt, the multi-degree-of-freedom manipulator 12 grabs the brake disc and places it on the placement plate 4 under the conveyance of the electric slider, the brake disc is centrally positioned by the positioning member 6, and then the push member 7 is driven to move to the right by the electric push rod 71 until the edge detection module 8 arrives at the work station. At this time, the electric drive turntable 5 is energized to drive the positioning member 6 and the brake disc to rotate at a low speed, and the edge area of ​​the brake disc is detected by the edge detection module 8 (check the edge The flatness detection module 9 detects the flatness of the lower surface of the brake disc through the flatness detection module 9. When it reaches the uneven area, the flatness detection module 9 undergoes structural changes inside, causing the electric drive turntable 5 to be short-circuited, so that the brake disc stops rotating. At this time, the pointing member 10 directly above the flatness detection module 9 points to the uneven position, and the unqualified position is determined. The present application can also perform airtightness detection on the automobile vacuum booster through the airtightness detection module 3 of the prior art.

[0027] Reference Figure 3 As shown, the electric drive turntable 5 includes a rotating disk 51, a motor 52, a trigger unit 53, and an insulating shell 54. The rotating disk 51 is horizontally rotatably arranged in the placement disk 4. The rotating disk 51 is connected to the output shaft of the motor 52 built into the placement disk 4. The upper end of the rotating disk 51 is coaxially connected to the positioning member 6. The trigger unit 53 is installed in the insulating shell 54, and the insulating shell 54 is installed inside the placement disk 4. The trigger unit 53, the motor 52 and the power supply built into the insulating shell 54 are electrically connected.

[0028] Reference Figure 6 As shown, the trigger unit 53 includes a conductive member 1 531, an insulating block 532, a contact member 533, and a conductive member 2 534. The conductive member 1 531 is installed at the left end position of the opening slot opened at the upper end of the insulating shell 54, and the insulating block 532 is horizontally slidably arranged at the right end position of the opening slot, and the insulating block 532 and the opening slot are elastically connected. The insulating block 532 always maintains a tendency to push to the left under the action of elasticity. The contact member 533 is installed in the middle of the insulating block 532, and the conductive member 2 534 is fixedly installed inside the insulating shell 54. The contact member 533 in the initial position is located at the leftmost side, thereby forming a separated and disconnected state with the conductive member 2 534.

[0029] In the actual operation process, the electric push rod 71 drives the pushing member 7 to move to the right until the edge detection module 8 arrives at the work station. At this time, the edge detection module 8 pushes the contact member 533 to the far right to contact the conductive member 2 534. The conductive member 1 531, the conductive member 2 534 and the edge detection module 8 are connected, and a passage is formed inside the electric drive turntable 5. After the motor 52 is energized, it drives the rotating disk 51 to rotate, thereby rotating the positioned brake disc at a low speed.

[0030] Reference Figure 4 , Figure 5 , Figure 7 As shown, the edge detection module 8 includes a movable frame 81, a connecting rod 82, a connecting cylinder 83, a fixed plate 84, an intermediate cavity 831, a cavity 1 832, a cavity 2 833, a rotating cylinder 85, a detection member 86, an elastic telescopic rod 87, a conveying unit 88, a hose 1 89, and a hose 2 90. The movable frame 81 is slidably mounted in the connecting rod 82, and the connecting rod 82 is installed in a sliding groove opened in the middle of the pusher 7. The movable frame 81 is elastically connected to the sliding groove. The connecting cylinder 83 is connected to the movable frame 81 through the fixed plate 84. The interior of the connecting cylinder 83 is sequentially provided with intermediate cavities 831 from top to bottom. , cavity one 832, cavity two 833, the rotating cylinder 85 is rotatably sleeved on the outside of the connecting cylinder 83, the rotating cylinder 85 is fixedly installed in the middle of the left end of the detection member 86, and the upper and lower ends of the detection member 86 are rotatably connected with the movable frame 81 through an elastic telescopic rod 87 respectively, the conveying unit 88 is installed at the left end position of the pushing member 7, and the front and rear outer walls of the pushing member 7 are respectively installed with the output unit one and the output unit two, the position of the conveying unit 88 corresponds to the middle cavity 831, the output unit one is connected with the cavity one 832 through the hose one 89, and the output unit two is connected with the cavity two 833 through the hose two 90.

[0031] In the actual edge detection process, the electric push rod 71 drives the push member 7 to move to the right until the edge of the brake disc enters the interior of the detection member 86, and the edge position of the low-speed rotating brake disc is detected by the detection member 86. If the edge is bent or deformed (warped up or down), the detection member 86 follows the position change (the movable frame 81 rises and falls, and the rotating cylinder 85 rotates), so that the paint in one of the conveying unit 88, output unit 1, and output unit 2 is sprayed from the spray head 861, thereby performing color marking (different marking colors indicate different bending and deformation situations).

[0032] Reference Figure 7As shown, in order to preliminarily judge whether the edge of the brake disc is tilted upward or downward, the present application makes a preliminary judgment based on the different colors of the sprayed marks. The specific structure is as follows: the right side of the connecting cylinder 83 is provided with an output port 1 834 and an output port 2 835 from top to bottom, the right end of the rotating cylinder 85 is provided with an alignment port 851, and the middle part of the detection member 86 is provided with a spray head 861, and the spray head 861 is connected to the alignment port 851; the left end of the connecting cylinder 83 is provided with an inlet port 834 and an outlet port 835. 36, and the entrance port 836 is connected to the middle cavity 831, a docking port 852 is opened at the left end of the rotating cylinder 85, a straight groove 811 is opened in the middle of the movable frame 81, and a connecting pipe 901 is connected between the right end of the straight groove 811 and the docking port 852, and a telescopic pipe 902 is connected between the left end of the straight groove 811 and the conveying unit 88; an alignment groove 821 is opened symmetrically in the middle of the connecting rod 82, and the position of the alignment groove 821 corresponds to the position of the straight groove 811.

[0033] In the actual operation process, the edge of the brake disc is deformed, and the structure of the detection member 86 may have the following situations (the detection member 86 is lifted and lowered in a straight line or the detection member 86 is adjusted and lifted and lowered at an angle). When the detection member 86 maintains the current angle and is lifted and lowered in a straight line, the movable frame 81 is lifted and lowered synchronously at this time, and the straight-through groove 811 opened therein is aligned with the alignment groove 821 in the connecting rod 82, and the angles of the connecting cylinder 83 and the rotating cylinder 85 are not changed (the right end of the middle cavity 831 is aligned with the alignment port 851 and the spray head 861), and the coating liquid in the liquid storage frame 881 in the conveying unit 88 is conveyed by pressure in sequence through the telescopic tube 902, the alignment groove 821, the straight-through groove 811, the connecting tube 901, and the middle cavity 831, and then sprayed from the spray head 861, thereby marking the coating liquid. When the edge of the brake disc is tilted upward, the detection member 86 is adjusted clockwise downward, and the movable frame 81 is lifted and lowered (although the straight-through groove 811 in the lifted movable frame 81 and the alignment groove 821 in the connecting rod 82 may be aligned, However, the right end of the intermediate cavity 831 is not aligned with the alignment port 851, so that the coating liquid in the conveying unit 88 will not be pressurized and sprayed out). At this time, the angle of the rotating cylinder 85 changes so that the alignment port 851 is aligned with the output port 2 835. At this time, the coating liquid is pressurized through the output unit 2 and passes through the hose 2 90 and the cavity 2 833 in sequence, and then is sprayed out from the spray head 861, thereby marking the coating liquid. When the edge of the brake disc tilts downward, the detection member 86 is adjusted counterclockwise and upward, and the movable frame 81 rises downward. At this time, the angle of the rotating cylinder 85 changes so that the alignment port 851 is aligned with the output port 1 834. At this time, the coating liquid is pressurized through the output unit 1 and passes through the hose 1 89 and the cavity 1 832 in sequence, and then is sprayed out from the spray head 861, thereby marking the coating liquid. According to different situations encountered during the brake disc detection process, the conveying unit 88, the output unit 1, the output unit 2 and the spray head 861 are aligned and connected, so that three different colors of marks are sprayed out, and the edge situation is preliminarily judged by the different colors of the marks.

[0034] Reference Figure 4 As shown, the conveying unit 88 is a unit with the same structure and size as the output unit 1 and the output unit 2. The conveying unit 88 includes a liquid storage frame 881, which is installed on the outer wall of the pusher 7. A pressure cover 882 is provided inside the liquid storage frame 881 for sliding up and down. A telescopic tube 902 is connected between the liquid storage frame 881 and the left end of the straight groove 811. The liquid storage frame 881 in the output unit 1 is connected to the cavity 1 832 through the hose 1 89, and the liquid storage frame 881 in the output unit 2 is connected to the cavity 2 833 through the hose 2 90.

[0035] During the actual operation, the coating liquid is injected into the liquid storage frame 881 and covered with a pressure cover 882. The coating liquid in the liquid storage frame 881 is pressed downward by gravity so as to always maintain a downward output trend. When one of the conveying unit 88, output unit 1, and output unit 2 is aligned and connected with the spray head 861, the corresponding coating liquid can be pressurized and sprayed out.

[0036] Reference Figure 4 , Figure 6 , Figure 8 As shown, after the brake disc is positioned, the present application triggers the electric drive turntable 5 to rotate after pushing the flatness detection module 9 to the right to the work station. At this time, the flatness detection module 9 is not working. The flatness detection module 9 is triggered only when the edge detection module 8 detects an unqualified area. The flatness detection module 9 is detected by the rising flatness detection module 9 on the lower surface of the brake disc. When an uneven position is detected, the electric drive turntable 5 can be powered off to stop rotating. At this time, the pointing member 10 is located directly above the uneven area of ​​the brake disc. The specific structure of the flatness detection module 9 is as follows: the flatness detection module 9 includes an insulating frame 91, an insulating plate 92, a conductive plate 93, a detection unit 94, a conductive block 95, a conductive frame 96, and a lifting unit 97. The insulating frame 91 is installed on the right side of the lower end of the pusher 7, and the insulating plate 92 is slidably arranged inside the insulating frame 91. The interlayer of the insulating plate 92 is from left to right. On the right, conductive plates 93 are arranged in sequence, a detection unit 94 is arranged between adjacent conductive plates 93, a wire is connected between the conductive block 95 and the leftmost conductive plate 93, the conductive block 95 corresponds to the position between the conductive member 1 531, a conductive frame 96 is installed at the lower end of the rightmost conductive plate 93, and the position between the conductive frame 96 and the contact member 533 corresponds (the push member 7 is driven to move to the right by the electric push rod 71 until the edge detection module 8 arrives at the work station, at this time, the conductive frame 96 contacts the contact member 533 and pushes the contact member 533 to the rightmost side so as to contact the conductive member 2 534, the contact area between the conductive frame 96 and the contact member 533 is large, even if the conductive frame 96 rises to a certain height with the conductive plate 93, the two will not be separated), and a lifting unit 97 is installed in the built-in cavity opened by the push member 7, and the lifting unit 97 is connected to the insulating plate 92.

[0037] In the actual operation process, the electric push rod 71 drives the push member 7 to move to the right until the edge detection module 8 arrives at the work station. At this time, the conductive block 95 in the flatness detection module 9 contacts the conductive member 1 531 in the electric drive turntable 5, and the conductive frame 96 pushes the contact member 533 to the rightmost side so as to contact the conductive member 2 534 (conductive frame 96, contact member 533, conductive member 2 534 contact), and a passage is formed inside the electric drive turntable 5. After the motor 52 is energized, it drives the rotating disk 51 to rotate, thereby rotating the positioned brake disc at a low speed, and then the edge of the brake disc is detected by the edge detection module 8. The flatness detection module 9 is triggered when an unqualified edge is detected. At this time, the movable frame 81 is lifted and lowered, thereby triggering the lifting unit 97 to drive the insulating plate 92 and the conductive plate 93 to rise synchronously until the detection unit 94 rises to the detection height. At this time, the detection unit 94 is used to detect the flatness of the lower surface of the brake disc. When concave or convex conditions occur, the detection unit 94 corresponding to its position changes in height, thereby forming a short-circuit state at this position, so that the electric drive turntable 5 is powered off as a whole, and the electric drive turntable 5 can stop rotating. At this time, the pointing member 10 is located directly above the uneven area of ​​the brake disc.

[0038] Reference Figure 8 As shown, the present application further improves the structure of the detection unit 94 and the lifting unit 97. Specifically, the detection unit 94 includes an insulating head 941, a conductive head 942, an empty slot 943, and a conductive joint 944. The insulating head 941 is slidably arranged in the insulating frame 91, and the conductive head 942 is installed at the lower end of the insulating head 941. The empty slots 943 are symmetrically opened at the upper and lower ends of the conductive head 942. The conductive head 942 at the initial height is in contact with the conductive joint 944, and the insulating layer arranged at the lower end of the conductive head 942 is elastically connected to the insulating frame 91. The conductive joint 944 is installed at the side end of the conductive plate 93, and the conductive head 942 is located between the conductive joints 944.

[0039] Reference Figure 4 , Fig. 9 As shown, the lifting unit 97 includes an electric push rod 971 and a control switch 972. The electric push rod 971 is installed in the built-in cavity, and the ejection end of the electric push rod 971 is connected to the insulating plate 92. The control switch 972 is installed in the built-in cavity, and the electric push rod 971, the control switch 972 and the battery in the built-in cavity are electrically connected.

[0040] Reference Fig. 9As shown, the control switch 972 includes an insulating box 9721, which is installed in the built-in cavity. A control member 9722 made of conductive material is provided inside the insulating box 9721 for sliding up and down. The control member 9722 is a "mountain"-shaped structure. An insulating rod 9723 is connected between the upper end of the control member 9722 and the movable frame 81. A conductive contact 9724 corresponding to the position of the control member 9722 is fixedly installed in the insulating box 9721. The control member 9722 at an initial height is not in contact with the conductive contact 9724. The conductive contact 9724, the electric push rod 971, and the battery are electrically connected.

[0041] During the actual operation, when an unqualified edge is detected, the flatness detection module 9 is triggered. At this time, the movable frame 81 is lifted and lowered, thereby driving the insulating rod 9723 to lift and lower. The synchronously lifted control member 9722 will contact the conductive contact 9724 to energize the electric push rod 971, thereby driving the insulating plate 92 and the conductive plate 93 to rise synchronously until the detection unit 94 rises to the detection height. At this time, the flatness of the lower surface of the brake disc is detected by the detection unit 94. When concave or convex conditions occur, the insulating head 941 in contact with its lower surface is lifted and lowered synchronously. At this time, the vacant slot 943 in the synchronously lifted conductive head 942 is aligned with the conductive joint 944, so that its current position is in an open circuit state. At this time, the electric drive turntable 5 is powered off as a whole, and the electric drive turntable 5 can stop rotating.

[0042] Working principle: Brake disc inspection: Step 1: The multi-degree-of-freedom manipulator 12 is driven by the electric slider to move to the upper position of the existing conveyor belt, the brake disc is grabbed by the multi-degree-of-freedom manipulator 12 and placed on the placement plate 4 under the conveyance of the electric slider, and the brake disc is centrally positioned by the positioning member 6; Step 2: The electric push rod 71 drives the push member 7 to move rightward until the edge detection module 8 reaches the working position. At this time, the electric drive turntable 5 is energized to drive the positioning member 6 and the brake disc to rotate at a low speed; Step 3: The edge area of ​​the brake disc is detected by the edge detection module 8. When the detection is unqualified, the edge detection module 8 marks the unqualified edge with a color, and the edge detection module 8 triggers the flatness detection module 9 to rise and make it abut against the lower end surface of the brake disc. The flatness of the lower surface of the brake disc is detected by the flatness detection module 9. When it reaches the uneven area, the flatness detection module 9 has a structural change inside so that the electric drive turntable 5 is disconnected, so that the brake disc can stop rotating. At this time, the pointing member 10 located directly above the flatness detection module 9 points to the uneven position, and the unqualified position is determined; Air tightness test: The air tightness detection module 3 of the prior art is used to detect the air tightness of the automobile vacuum booster.

[0043] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A brake disc defect detection device for an automated production line, characterized in that: include: A working platform (1) having a rotatable rotating platform (2) mounted on its right end; An airtightness detection module (3) is installed at the left end of the rotating platform (2); A placement plate (4) is installed at the right end of the rotating platform (2), an electric drive turntable (5) with a controllable switch is installed in the middle of the placement plate (4), and a positioning member (6) is installed at the upper end of the electric drive turntable (5), and the positioning member (6) is used to locate the center position of the brake disc; A pusher (7) is connected to the left end of the placement disc (4) via an electric push rod (71), and an edge detection module (8) is installed in the middle of the pusher (7), and the irregular edge of the brake disc is marked with a color by the edge detection module (8); A flatness detection module (9) is installed at the lower end of the pusher (7). When the surface of the brake disc is uneven, the flatness detection module (9) is triggered to disconnect the electric drive rotary disc (5) again, and the positioning member (6) stops rotating. A pointing member (10) mounted at the upper end of the pushing member (7); A bracket (11) is mounted on the rotating platform (2), and the upper end of the bracket (11) is connected to a multi-degree-of-freedom manipulator (12) via an electric slider.

2. The brake disc defect detection device for an automated production line according to claim 1, characterized in that: The electrically driven turntable (5) comprises: A rotating disk (51) is horizontally rotatably arranged in the placement disk (4), the rotating disk (51) is connected to the output shaft of a motor (52) built in the placement disk (4), and the upper end of the rotating disk (51) is coaxially connected to the positioning member (6); The trigger unit (53) is installed in an insulating shell (54), and the insulating shell (54) is installed inside the placement plate (4). The trigger unit (53), the motor (52) and the power supply built in the insulating shell (54) are electrically connected.

3. The brake disc defect detection device for an automated production line according to claim 2, characterized in that: The trigger unit (53) comprises: A conductive member (531) installed at the left end of an opening slot formed at the upper end of the insulating shell (54); An insulating block (532) is horizontally slidably arranged at the right end of the opening slot, and the insulating block (532) and the opening slot are elastically connected, and a contact piece (533) is installed in the middle of the insulating block (532); The second conductive member (534) is fixedly installed inside the insulating shell (54).

4. The brake disc defect detection device for an automated production line according to claim 3, characterized in that: The edge detection module (8) comprises: The movable frame (81) is sleeved and slidably mounted in the connecting rod (82) at the upper and lower parts. The connecting rod (82) is installed in a sliding groove provided in the middle of the pushing member (7). The movable frame (81) and the sliding groove are elastically connected. A connecting tube (83) is connected to the movable frame (81) via a fixing plate (84), and the interior of the connecting tube (83) is provided with a middle cavity (831), a cavity 1 (832), and a cavity 2 (833) in sequence from top to bottom; The rotating cylinder (85) is rotatably sleeved on the outside of the connecting cylinder (83), and the rotating cylinder (85) is fixedly mounted on the middle of the left end of the detection member (86), and the upper and lower ends of the detection member (86) are rotatably connected to the movable frame (81) through an elastic telescopic rod (87) respectively; The conveying unit (88) is installed at the left end of the pushing member (7). The front and rear outer walls of the pushing member (7) are respectively installed with an output unit 1 and an output unit 2. The position of the conveying unit (88) corresponds to that between the middle cavity (831). The output unit 1 is connected to the cavity 1 (832) through a hose 1 (89), and the output unit 2 is connected to the cavity 2 (833) through a hose 2 (90).

5. The brake disc defect detection device for an automated production line according to claim 4, characterized in that: The right side of the connecting cylinder (83) is provided with an output port 1 (834) and an output port 2 (835) in order from top to bottom, the right end of the rotating cylinder (85) is provided with an alignment port (851), and the middle part of the detection member (86) is provided with a spray head (861), and the spray head (861) is connected to the alignment port (851); The left end of the connecting cylinder (83) is provided with an inlet (836), and the inlet (836) is connected to the middle cavity (831); the left end of the rotating cylinder (85) is provided with a docking port (852); the middle part of the movable frame (81) is provided with a straight groove (811), and a connecting pipe (901) is connected between the right end of the straight groove (811) and the docking port (852); and a telescopic pipe (902) is connected between the left end of the straight groove (811) and the conveying unit (88).

6. The brake disc defect detection device for an automated production line according to claim 5, characterized in that: An alignment groove (821) is symmetrically provided in the middle of the connecting rod (82) in the upper and lower parts, and the position of the alignment groove (821) corresponds to that of the straight-through groove (811).

7. The brake disc defect detection device for an automated production line according to claim 5, characterized in that: The conveying unit (88) is a unit having the same structure and size as the output unit 1 and the output unit 2. The conveying unit (88) comprises a liquid storage frame (881), which is installed on the outer wall of the pusher (7). A pressure cover (882) is provided inside the liquid storage frame (881) to slide up and down. A telescopic tube (902) is connected between the liquid storage frame (881) and the left end of the straight groove (811). The liquid storage frame (881) in the output unit one is connected to the cavity one (832) via the hose one (89), and the liquid storage frame (881) in the output unit two is connected to the cavity two (833) via the hose two (90).

8. The brake disc defect detection device for an automated production line according to claim 4, characterized in that: The flatness detection module (9) comprises: An insulating frame (91) mounted on the right side of the lower end of the pusher (7); An insulating plate (92) is slidably disposed inside the insulating frame (91) up and down, and conductive plates (93) are sequentially disposed in the interlayer of the insulating plate (92) from left to right; A detection unit (94) disposed between adjacent conductive plates (93); A conductive block (95) is connected to the leftmost conductive plate (93) by a conductive wire, and the conductive block (95) corresponds to the position between the conductive member 1 (531); A conductive frame (96) is mounted on the lower end of the rightmost conductive plate (93), and the conductive frame (96) corresponds to the position between the contact member (533); The lifting unit (97) is installed in the built-in cavity opened by the pusher (7), and the lifting unit (97) is connected to the insulating plate (92).

9. The brake disc defect detection device for an automated production line according to claim 8, characterized in that: The detection unit (94) comprises: An insulating head (941) is slidably arranged in an insulating frame (91) up and down, a conductive head (942) is installed at the lower end of the insulating head (941), and empty grooves (943) are symmetrically provided at the upper and lower ends of the conductive head (942), and an insulating layer arranged at the lower end of the conductive head (942) is elastically connected to the insulating frame (91); The conductive connector (944) is installed on the side end of the conductive plate (93), and the conductive head (942) is located between the conductive connectors (944).

10. The brake disc defect detection device for an automated production line according to claim 9, characterized in that: The lifting unit (97) comprises: An electric push rod (971) is installed in the built-in cavity, and an ejection end of the electric push rod (971) is connected to the insulating plate (92); A control switch (972) is installed in the built-in cavity, and the electric push rod (971), the control switch (972) and the battery in the built-in cavity are electrically connected; The control switch (972) comprises an insulating box (9721), the insulating box (9721) is installed in the built-in cavity, a control member (9722) made of conductive material is slidably arranged inside the insulating box (9721), the control member (9722) is a "mountain"-shaped structure, an insulating rod (9723) is connected between the upper end of the control member (9722) and the movable frame (81), a conductive contact (9724) corresponding to the position of the control member (9722) is fixedly installed in the insulating box (9721), and the conductive contact (9724), the electric push rod (971), and the battery are electrically connected.

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