Brake disc blank defect inspection equipment and detection method thereof

Abstract

The invention discloses brake disc blank defect inspection equipment and a detection method thereof, and belongs to the technical field of brake disc detection.The brake disc blank defect inspection equipment comprises an operation table, a supporting plate is fixedly connected to the top of the operation table, a brake disc body is arranged above the operation table, and grooves are formed in the outer surfaces of the two sides of the brake disc body; a first mounting plate is slidably connected into the supporting plate, a first electric push rod is fixedly mounted on the first mounting plate, a fixing sleeve is fixedly connected to the output end of the first electric push rod, a connecting sleeve is fixedly connected to the bottom of the fixing sleeve, and a supporting spring is fixedly connected between the fixing sleeve and the connecting sleeve. A ball is slidably connected in the connecting sleeve, a first pressure sensor is arranged in the ball, a contact pin is fixedly connected to one side of the fixing sleeve, and the device solves the problems that an existing brake disc blank defect detection means is single, and the detection precision of the deep groove and the width of the groove is low.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of brake disc detection, and particularly relates to a brake disc blank defect inspection device and a detection method thereof. BACKGROUND

[0002] In the field of automobile manufacturing, as a core component of the vehicle braking system, the quality of the brake disc directly relates to driving safety and driving experience. During the production process such as casting and forging, the brake disc blank is prone to problems such as non-compliance of surface roughness, structural size deviation, internal cracks and material defects. If these defects are not detected and processed in time, they will seriously affect the braking performance, service life and reliability of the brake disc, and even cause major safety accidents.

[0003] The traditional brake disc blank defect detection means mainly relies on manual visual inspection, simple caliper measurement or single-function detection equipment, and has problems such as low detection efficiency and insufficient precision. This phenomenon has become a problem that personnel in the field are eager to solve. SUMMARY

[0004] The purpose of the present application is to provide a brake disc blank defect inspection device and a detection method thereof for the existing timber collection device to solve the problems raised in the background.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a brake disc blank defect inspection device and a detection method thereof, comprising an operating table, the top of the operating table is fixedly connected with a support plate, the upper side of the operating table is provided with a brake disc body, the outer surface of both sides of the brake disc body is provided with a groove, the inside of the support plate is slidably connected with a first mounting plate, the first mounting plate is fixedly provided with a first electric push rod, the output end of the first electric push rod is fixedly connected with a fixed sleeve, the bottom of the fixed sleeve is fixedly connected with a connecting sleeve, the fixed sleeve and the connecting sleeve are fixedly connected with a supporting spring, the inside of the connecting sleeve is slidably connected with a ball, the inside of the ball is provided with a first pressure sensor, one side of the fixed sleeve is fixedly connected with a stylus, and the bottom of the ball and one side of the stylus are both provided with a first distance measuring inductor.

[0006] The present application further discloses that the two sides of the fixed sleeve are both fixedly connected with a second connecting block, the bottom of the two groups of second connecting blocks is fixedly connected with a placing frame, the inside of the placing frame is fixedly provided with a second electric push rod, the output end of the second electric push rod is fixedly connected with a second mounting plate, and the two sides of the placing frame are both provided with a first sliding groove.

[0007] The first connecting frame is provided with a second sliding groove in the top, a second connecting frame is slidably connected in the first connecting frame, a third mounting plate is fixedly connected to the top of the second connecting frame, and a second connecting rod is hinged between the third mounting plate and the second mounting plate.

[0008] The second connecting frame is slidably connected with a third connecting frame, a reset spring is fixedly connected between the third connecting frame and the second connecting frame, a pushing block is arranged in the third connecting frame, a second pressure sensor is arranged in the pushing block, and a second distance measuring sensor is arranged on one side of the pushing block.

[0009] The top of the operation table is fixedly connected with a first transverse sliding rail, a first sliding module is slidably connected to the top of the first transverse sliding rail, a support block is fixedly connected to the top of the first sliding module, and a motor is fixedly installed on the top of the support block.

[0010] The output end of the motor is connected with a clamping assembly, the clamping assembly comprises a support frame fixedly connected upward from the output end of the motor, a first electric telescopic rod is fixedly connected to one side in the support frame, a limiting rod is fixedly connected to the other side in the support frame, a first connecting block is connected to the output end of the first electric telescopic rod, a limiting block is slidably connected to the outside of the limiting rod, a first connecting rod is hinged between the limiting block and the first connecting block, and a clamping block is fixedly connected to the top of the limiting block.

[0011] The outer surface of one side of the fixing sleeve is provided with a guide groove, a second electric telescopic rod is fixedly installed in the guide groove, a first rough detection rod is fixedly connected to the bottom of the second electric telescopic rod, a third pressure sensor is arranged in the first rough detection rod, a third electric telescopic rod is fixedly installed on one side of the support plate, a second rough detection rod is fixedly installed on one side of the third electric telescopic rod, and a fourth pressure sensor is installed on one side of the second rough detection rod.

[0012] The fourth electric telescopic rod is fixedly connected to one side of the first mounting plate.

[0013] The support plate is fixedly connected with a second transverse sliding rail on one side, a second sliding module is arranged in the second transverse sliding rail, a brake clamp is fixedly connected to one side of the second sliding module, and a strain gauge type pressure sensor is arranged in the brake clamp.

[0014] In addition, in order to achieve the above object, the application also provides a brake disc blank defect detection method, which comprises the following specific operation methods. Method one: when the depth of the groove needs to be detected, the first electric push rod is started to push the fixed sleeve to move downward, the balls in the connecting sleeve are attached to the bottom of the groove, and the motor is started at the same time, so that the motor drives the clamping assembly and the brake disc body to rotate; If the first pressure sensor at the ball position is c1, the groove depth is a1, and c1>c, then a1 If the first pressure sensor at the ball position is c2, the groove depth is a2, and c2 If the first pressure sensor at the ball position is c3, the groove depth is a3, and c3 is equal to c, then a3 is equal to a, the groove depth is standard, and the brake disc body is qualified and can enter the groove width detection; Method two: when the groove width needs to be detected, the second electric push rod is remotely started to drive the second mounting plate to descend, and the second connecting rod, the third mounting plate and the second connecting frame are moved along the second sliding groove of the first connecting frame, so that the second connecting frame drives the third connecting frame and the pushing block to move, so that the two groups of pushing blocks are attached to the inner wall of the groove; The second pressure sensor pressure value is e, the groove width value is b, if the second pressure sensor at the pushing block position is e1 at this time, the groove width is b1, and e1>e, then b1 If the second pressure sensor at the pushing block position is e2 at this time, the groove width is b2, and e2 If the second pressure sensor at the pushing block position is e3 at this time, the groove width is b1, and e3 is equal to e, then b3 is equal to b, the groove width is standard, and the brake disc body is qualified; Method three: the brake disc body meeting the groove depth and width standard value can be subjected to the next roughness detection; Remote start the second electric telescopic rod and the third electric telescopic rod, the second electric telescopic rod can make the first rough detection rod contact with the upper surface of the brake disc body after starting, and the third pressure sensor is used to detect the pressure in contact with the upper surface of the brake disc body, and the second rough detection rod can be contacted with the side surface of the brake disc body after the third electric telescopic rod is started, and the fourth pressure sensor is used to detect the pressure in contact with the side surface of the brake disc body, at this time, the preset pressure standard parameter value of the third pressure sensor is f, the preset pressure standard parameter value of the fourth pressure sensor is F, the value of the brake caliper clamping the brake disc body is the brake clamping force value, the standard parameter value range of the strain gauge pressure sensor can be preset as z, and the spacing of the brake disc body clamping is fixed; In the first step, the first rough detection rod contacts the upper surface of the brake disc body after the second electric telescopic rod is started, if the actual detection value f1 of the third pressure sensor is less than f, it indicates that the surface of the brake disc body appears concave phenomenon, and the brake disc body is unqualified, if the actual detection value f1 of the third pressure sensor is greater than f, it indicates that the surface of the brake disc appears convex or burr, which causes the pressure value to increase, at this time, the surface of the brake disc body can be polished by the existing technology, and the surface roughness is detected again after polishing, if the actual detection value f1 of the third pressure sensor is less than or equal to f, it indicates that the brake disc body meets the roughness standard, and the side roughness of the brake disc body can be detected; Further, the second rough detection rod is contacted with the side surface of the brake disc body by starting the third electric telescopic rod, if the actual detection value F1 of the fourth pressure sensor is greater than F, it indicates that the side surface of the brake disc body appears convex or burr, the side roughness of the brake disc body is unqualified, and the perpendicularity is unqualified, if the actual detection value F1 of the fourth pressure sensor is less than F, it indicates that the side surface of the brake disc body appears concave, the side roughness of the brake disc body is unqualified, and the perpendicularity is unqualified, and the brake disc body needs to be recycled; If the actual detection value F1 of the fourth pressure sensor is equal to F, it indicates that the perpendicularity of the brake disc body is qualified, and the brake caliper can be used to clamp the upper surface and the side surface of the qualified brake disc body for detection; Specifically, if the upper surface and the side roughness of the brake disc body are qualified, but the actual detection value z1 of the strain gauge pressure sensor is greater than z, it indicates that the actual clamping force value exceeds the standard clamping force value, and it can be judged that the thickness of the brake disc body is out of standard, which causes excessive extrusion of the brake caliper to the brake disc body in the standard clamping force, so that the clamping force exceeds the standard value z after superposition, and the brake caliper and the brake disc body are easily damaged, which is unqualified; If the actual value z1 detected by the strain gauge pressure sensor is less than z, it indicates that the actual clamping force is less than the standard clamping force. This can be judged as the brake disc body being too thin, causing the brake caliper to be unable to effectively clamp the brake disc body. The clamping force cannot be fully applied to the friction surface of the brake disc body, resulting in insufficient braking force, which is considered unqualified.

[0015] If the actual value detected by the strain gauge pressure sensor is z1 = z, it indicates that the actual clamping force value meets the standard clamping force value, and that the thickness of the brake disc body meets the standard and is qualified.

[0016] The above steps can be used to detect defects in the brake disc blank.

[0017] Compared with existing technologies, the beneficial effects achieved by this invention are as follows: This invention uses a clamping assembly to fix the brake disc, and a motor drives its rotation. A first electric push rod, in conjunction with a sensor, detects the groove depth based on pressure and distance data. If the pressure is too high or too low, corresponding to a groove depth that is too shallow or too deep, the disc is deemed unqualified. When detecting the groove width, a second electric push rod drives a pushing block to conform to the inner wall of the groove, and the width is determined to meet the standard based on pressure and spacing data. After meeting the groove depth and width standards, a relevant electric telescopic rod is activated to bring the roughness detection rod into contact with the disc surface. Based on the correspondence between pressure value, roughness value, and brake clamping force value, the brake disc is judged to be qualified. If the three match, the brake disc is qualified; otherwise, it is unqualified, thus achieving a comprehensive defect inspection of the brake disc blank. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the brake caliper and brake disc in the non-contact state of the present invention; Figure 3 This is a schematic diagram of the overall structure of the present invention viewed from below; Figure 4 This is the invention Figure 1 Enlarged structural diagram of region A in the middle; Figure 5 This is the invention Figure 2 Enlarged structural diagram of region B in the middle; Figure 6 This is the invention Figure 3 Enlarged structural diagram of region C in the middle; Figure 7 This is a schematic diagram of the groove width measuring and sectional structure of the present invention; Figure 8 This is a schematic diagram of the structure of the placement frame and the pushing block of the present invention; Figure 9 Figure is the sectional structure schematic diagram of the placing frame and the pushing block of the present application.

[0019] In the figure: 1, operation table; 2, support plate; 3, first transverse slide rail; 4, first sliding module; 5, support block; 6, motor; 7, clamping assembly; 701, support frame; 702, first electric telescopic rod; 703, first connecting block; 704, first connecting rod; 705, limiting rod; 706, limiting block; 707, clamping block; 8, brake disc body; 9, groove; 10, first mounting plate; 11, first electric push rod; 12, fixed sleeve; 13, connecting sleeve; 14, support spring; 15, ball; 16, first pressure sensor; 17, contact pin; 18, first distance measuring inductor; 19, second connecting block; 20, placing frame; 21, second electric push rod; 22, second mounting plate; 23, first sliding groove; 24, first connecting frame; 25, second sliding groove; 26, second connecting frame; 27, third mounting plate; 28, second connecting rod; 29, return spring; 30, third connecting frame; 31, pushing block; 32, second pressure sensor; 33, second distance measuring inductor; 34, guide groove; 35, second electric telescopic rod; 36, first roughness detection rod; 37, third pressure sensor; 38, third electric telescopic rod; 39, second roughness detection rod; 40, fourth pressure sensor; 41, fourth electric telescopic rod; 42, second transverse slide rail; 43, second sliding module; 44, brake caliper; 45, strain gauge pressure sensor. DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be further described in detail below with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work, fall within the protection scope of the present application.

[0021] Please refer to Figures 1-9The application provides a technical scheme: a brake disc blank defect inspection equipment, which comprises an operating table 1, a support plate 2 fixedly connected to the top of the operating table 1, a first transverse sliding rail 3 fixedly connected to the top of the operating table 1, a first sliding module 4 slidingly connected to the top of the first transverse sliding rail 3, a support block 5 fixedly connected to the top of the first sliding module 4, a motor 6 fixedly installed on the top of the support block 5, a clamping assembly 7 connected to the output end of the motor 6, wherein the clamping assembly 7 comprises a support frame 701 fixedly connected to the upward output end of the motor 6, a first electric telescopic rod 702 fixedly connected to one side in the support frame 701, a limiting rod 705 fixedly connected to the other side in the support frame 701, a first connecting block 703 connected to the output end of the first electric telescopic rod 702, a limiting block 706 slidingly connected to the outer surface of the limiting rod 705, a first connecting rod 704 hinged between the limiting block 706 and the first connecting block 703, and a clamping block 707 fixedly connected to the top of the limiting block 706, wherein the outer surface of the clamping block 707 is provided with a brake disc body 8. The first electric telescopic rod 702 in the clamping assembly 7 is started, the output end of the first electric telescopic rod 702 can drive the first connecting block 703 to move up and down, when the first electric telescopic rod 702 is extended, the first connecting block 703 is pushed to move upwards, the first connecting block 703 can drive the first connecting rod 704 to move, the first connecting rod 704 drives the limiting block 706 to move on the outer surface of the limiting rod 705, so that the two sets of limiting blocks 706 drive the two sets of clamping blocks 707 to move outward at the same time, so that the clamping block 707 is in contact with the inner wall of the middle part of the brake disc body 8, thereby fixing the brake disc body 8, when the first electric telescopic rod 702 is retracted, the first connecting block 703 is pushed to move downwards, the first connecting block 703 drives the first connecting rod 704 to move, the first connecting rod 704 can drive the two sets of limiting blocks 706 and the two sets of clamping blocks 707 to move towards the middle at the same time, so that the clamping block 707 is separated from the brake disc body 8. When the clamping block 707 moves and is in contact with the brake disc body 8 to fix the brake disc body 8, the motor 6 is started, the output end of the motor 6 can drive the clamping assembly 7 and the brake disc body 8 to rotate. Grooves 9 are formed in the outer surfaces of the two sides of the brake disc body 8, a first mounting plate 10 is slidingly connected to the inside of the support plate 2, a first electric push rod 11 is fixedly installed on the first mounting plate 10, a fixed sleeve 12 is fixedly connected to the output end of the first electric push rod 11, a connecting sleeve 13 is fixedly connected to the bottom of the fixed sleeve 12, a support spring 14 is fixedly connected between the fixed sleeve 12 and the connecting sleeve 13, a rolling ball 15 is slidingly connected in the connecting sleeve 13, a first pressure sensor 16 is arranged in the rolling ball 15, a contact pin 17 is fixedly connected to one side of the fixed sleeve 12, and a first distance measuring sensor 18 is arranged on the bottom of the rolling ball 15 and one side of the contact pin 17. When the depth and width of the groove 9 in the brake disc body 8 need to be detected, the first electric push rod 11 is started, the output end of which can push the fixed sleeve 12 to move downward, so that the fixed sleeve 12 and the connecting sleeve 13 move downward until the balls 15 in the connecting sleeve 13 are in contact with the bottom of the groove 9, and at the same time the contact pins 17 on the outer surface of the fixed sleeve 12 are in contact with the surface of the brake disc body 8, at this time the first pressure sensor 16 at the balls 15 has a certain pressure value, and the data between the first distance sensor 18 at the contact pin 17 and the first distance sensor 18 at the balls 15 is transmitted, so that the depth of the groove 9 can be measured; The two sides of the fixed sleeve 12 are fixedly connected with the second connecting blocks 19, the bottoms of the two groups of second connecting blocks 19 are fixedly connected with the placing frames 20, the second electric push rods 21 are fixedly installed in the interiors of the placing frames 20, the output ends of the second electric push rods 21 are fixedly connected with the second mounting plates 22, the two sides of the placing frame 20 are provided with the first sliding grooves 23, the bottoms of the two sides of the placing frame 20 are fixedly connected with the first connecting frames 24, the top of the first connecting frame 24 is provided with the second sliding groove 25, the second connecting frame 26 is slidably connected with the interior of the first connecting frame 24, the top of the second connecting frame 26 is fixedly connected with the third mounting plate 27, the second connecting rod 28 is hinged between the second mounting plate 22 and the third mounting plate 27, the third connecting frame 30 is slidably connected with the interior of the second connecting frame 26, the reset spring 29 is fixedly connected between the second connecting frame 26 and the third connecting frame 30, the pushing block 31 is arranged in the interior of the third connecting frame 30, the second pressure sensor 32 is arranged in the interior of the pushing block 31, and the second distance sensor 33 is arranged on one side of the pushing block 31; When the balls 15 are in contact with the bottom of the groove 9 when the first electric push rod 11 pushes the fixed sleeve 12 to move downward, the second electric push rod 21 is remotely started, the second electric push rod 21 drives the second mounting plate 22 to descend, the second mounting plate 22 can drive the second connecting rod 28, the third mounting plate 27 and the second connecting frame 26 to move along the second sliding groove 25 of the first connecting frame 24, so that the second connecting frame 26 drives the third connecting frame 30 and the pushing block 31 to move, so that the two groups of pushing blocks 31 are in contact with the inner wall of the groove 9, the second pressure sensor 32 detects the contact pressure, and the second distance sensor 33 measures the distance between the two groups of pushing blocks 31 to obtain the width data of the groove 9; The outer surface of one side of the fixed sleeve 12 is provided with a guide groove 34, and the inside of the guide groove 34 is fixedly installed with a second electric telescopic rod 35. The bottom of the second electric telescopic rod 35 is fixedly connected with a first rough detection rod 36. The inside of the first rough detection rod 36 is provided with a third pressure sensor 37. One side of the supporting plate 2 is fixedly installed with a third electric telescopic rod 38. One side of the third electric telescopic rod 38 is fixedly installed with a second rough detection rod 39. One side of the second rough detection rod 39 is installed with a fourth pressure sensor 40. One side of the supporting plate 2 is fixedly installed with a fourth electric telescopic rod 41. The output end of the fourth electric telescopic rod 41 is fixedly connected with one side of the first mounting plate 10. The fourth electric telescopic rod 41 can control the first mounting plate 10 to move, so as to ensure that the detection assembly at the bottom of the first mounting plate 10 can be aligned with the brake disc body 8. The second electric telescopic rod 35 is remotely started. The output end of the second electric telescopic rod 35 drives the first rough detection rod 36 to move downward and contact the outer surface of the brake disc body 8. The third pressure sensor 37 can monitor the contact pressure. At the same time, the third electric telescopic rod 38 is remotely started. The third electric telescopic rod 38 can drive the second rough detection rod 39 to move, so that the second rough detection rod 39 contacts the side surface of the brake disc body 8. The fourth pressure sensor 40 controls the contact force. At this time, the motor 6 is started. The output end of the motor 6 drives the clamping assembly 7 to rotate with the brake disc body 8, so that the first rough detection rod 36 and the second rough detection rod 39 can collect the roughness data of the brake disc body 8. One side of the supporting plate 2 is fixedly connected with a second transverse sliding rail 42. The inside of the second transverse sliding rail 42 is provided with a second sliding module 43. One side of the second sliding module 43 is fixedly connected with a brake clamp 44. The inside of the brake clamp 44 is provided with a strain gauge pressure sensor 45. The system controls the second sliding module 43 to move along the second transverse sliding rail 42, so as to adjust the brake clamp 44 to the radius position of the brake disc body 8. When the brake clamp 44 clamps the rotating brake disc body 8, the strain gauge pressure sensor 45 can collect the brake clamping force data in real time. Specifically, when the depth of the groove 9 needs to be detected, the first electric push rod 11 is started to push the fixed sleeve 12 to move downward. The ball 15 in the connecting sleeve 13 is in close contact with the bottom of the groove 9. At the same time, the motor 6 is started, so that the motor 6 drives the clamping assembly 7 and the brake disc body 8 to rotate. The first pressure sensor 16 pressure value is c, the groove 9 depth standard value is a, if the first pressure sensor 16 at the ball 15 is c1, the groove depth is a1, and c1>c, then a1 If the first pressure sensor 16 at the ball 15 is c2, the groove 9 depth is a2, and c2 If the first pressure sensor 16 at the ball 15 is c3, the groove 9 depth is a3, and c3 is equal to c, then a3 is equal to a, and the groove 9 depth is standard, indicating that the brake disc body 8 is qualified and can enter the groove 9 width detection; Specifically, when the groove 9 width needs to be detected, the second electric push rod 21 is remotely started to drive the second mounting plate 22 to descend, and the second connecting rod 28 and the third mounting plate 27 and the second connecting frame 26 are moved along the second sliding groove 25 of the first connecting frame 24, so that the second connecting frame 26 drives the third connecting frame 30 and the pushing block 31 to move, so that the two groups of pushing blocks 31 are in contact with the inner wall of the groove 9; The second pressure sensor 32 pressure value is e, the groove 9 width value is b, if the second pressure sensor 32 at the pushing block 31 is e1 at this time, the groove 9 width is b1, and e1>e, then b1 If the second pressure sensor 32 at the pushing block 31 is e2 at this time, the groove 9 width is b2, and e2 If the second pressure sensor 32 at the pushing block 31 is e3 at this time, the groove 9 width is b1, and e3 is equal to e, then b3 is equal to b, and the groove 9 width is standard, indicating that the brake disc body 8 is qualified; Specifically, the brake disc body 8 that meets the standard value of the groove 9 depth and width can be subjected to the next roughness detection; The second electric telescopic rod 35 and the third electric telescopic rod 38 are remotely started, the first rough detection rod 36 can be in contact with the upper surface of the brake disc body 8 after the second electric telescopic rod 35 is started, the third pressure sensor 37 is used to detect the pressure in contact with the upper surface of the brake disc body 8, and the second rough detection rod 39 can be in contact with the side surface of the brake disc body 8 after the third electric telescopic rod 38 is started. The fourth pressure sensor 40 is used to detect the pressure in contact with the side surface of the brake disc body 8, the third pressure sensor 37 preset pressure standard parameter value is f at this time, the fourth pressure sensor 40 preset pressure standard parameter value is F, the brake caliper 44 clamping value of the brake disc body 8 is the brake clamping force value, which can be preset by the strain gauge pressure sensor 45. The standard parameter value range is z, and the distance of the brake disc body 8 clamped is fixed; In the first step, the first rough detection rod 36 is in contact with the upper surface of the brake disc body 8 after the second electric telescopic rod 35 is started. If the actual detection value f1 of the third pressure sensor 37 is less than f, it indicates that the surface of the brake disc body 8 is concave, and the brake disc body 8 is unqualified. If the actual detection value f1 of the third pressure sensor 37 is greater than f, it indicates that the surface of the brake disc is convex or burr, which causes the pressure value to increase. At this time, the surface of the brake disc body 8 can be polished by the existing technology, and the surface roughness is detected again after polishing. If the actual detection value f1 of the third pressure sensor 37 is less than or equal to f, it indicates that the brake disc body 8 meets the roughness standard, and the side roughness of the brake disc body 8 can be detected. Further, the second rough detection rod 39 is in contact with the side surface of the brake disc body 8 by starting the third electric telescopic rod 38. If the actual detection value F1 of the fourth pressure sensor 40 is greater than F, it indicates that the side surface of the brake disc body 8 is convex or burr, and the side roughness of the brake disc body 8 is unqualified, which indicates that the perpendicularity is unqualified. If the actual detection value F1 of the fourth pressure sensor 40 is less than F, it indicates that the side surface of the brake disc body 8 is concave, and the side roughness of the brake disc body 8 is unqualified, which indicates that the perpendicularity is unqualified. The brake disc body 8 needs to be recycled. If the actual detection value F1 of the fourth pressure sensor 40 is equal to F, it indicates that the perpendicularity of the brake disc body 8 is qualified, and the brake disc body 8 with qualified upper surface and side surface can be clamped and detected by the brake clamp 44. Specifically, if the upper surface and the side roughness of the brake disc body 8 are qualified, but the actual detection value z1 of the strain gauge pressure sensor 45 is greater than z, it indicates that the actual clamping force value exceeds the standard clamping force value, and it can be judged that the thickness of the brake disc body 8 is out of standard, which causes the brake clamp 44 to cause excessive extrusion to the brake disc body 8 in the standard clamping force, so that the clamping force after superposition exceeds the standard value z, which is easy to cause damage to the brake clamp 44 and the brake disc body 8, and it is unqualified. If the actual detection value z1 of the strain gauge pressure sensor 45 is less than z, it indicates that the actual clamping force value is less than the standard clamping force value, and it can be judged that the thickness of the brake disc body 8 is too thin, which causes the brake clamp 44 to be unable to effectively clamp the brake disc body 8, and the clamping force cannot fully act on the friction surface of the brake disc body 8, and the braking force is insufficient, which is unqualified.

[0022] If the actual detection value z1 of the strain gauge pressure sensor 45 is equal to z, it indicates that the actual clamping force value meets the standard clamping force value, which indicates that the thickness of the brake disc body 8 is standard, and it is qualified.

[0023] Through the above steps, the defects of the brake disc blank can be detected.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A brake disc blank defect inspection apparatus comprising an operating table (1), characterized in that: The top of the operating platform (1) is fixedly connected with a support plate (2), the upper side of the operating platform (1) is provided with a brake disc body (8), the outer surfaces of the two sides of the brake disc body (8) are both provided with a groove (9), the inside of the support plate (2) is slidably connected with a first mounting plate (10), the first mounting plate (10) is fixedly connected with a first electric push rod (11), the output end of the first electric push rod (11) is fixedly connected with a fixed sleeve (12), the bottom of the fixed sleeve (12) is fixedly connected with a connecting sleeve (13), and the fixed sleeve (12) and the connecting sleeve (13) are fixedly connected with a supporting spring (14); The inside of the connecting sleeve (13) is slidably connected with a ball (15), the inside of the ball (15) is provided with a first pressure sensor (16), one side of the fixed sleeve (12) is fixedly connected with a contact pin (17), and the bottom of the ball (15) and one side of the contact pin (17) are both provided with a first distance measuring sensor (18).

2. A brake disc blank defect inspection apparatus according to claim 1, characterised in that: The top of the operating platform (1) is fixedly connected with a first transverse sliding rail (3), the top of the first transverse sliding rail (3) is slidably connected with a first sliding module (4), the top of the first sliding module (4) is fixedly connected with a support block (5), the top of the support block (5) is fixedly connected with a motor (6), the bottom of the two sides of the placing frame (20) is fixedly connected with a first connecting frame (24), the top of the first connecting frame (24) is provided with a second sliding groove (25), the inside of the first connecting frame (24) is slidably connected with a second connecting frame (26), the top of the second connecting frame (26) is fixedly connected with a third mounting plate (27), the second connecting frame (26) and the second mounting plate (22) are hingedly connected with a second connecting rod (28), the inside of the second connecting frame (26) is slidably connected with a third connecting frame (30), the second connecting frame (26) and the third connecting frame (30) are fixedly connected with a reset spring (29), the inside of the third connecting frame (30) is provided with a pushing block (31), one side of the outer surface of the fixed sleeve (12) is provided with a guide groove (34), the inside of the guide groove (34) is fixedly connected with a second electric telescopic rod (35), the bottom of the second electric telescopic rod (35) is fixedly connected with a first rough detection rod (36), the inside of the first rough detection rod (36) is provided with a third pressure sensor (37), one side of the support plate (2) is fixedly connected with a third electric telescopic rod (38), one side of the third electric telescopic rod (38) is fixedly connected with a second rough detection rod (39), and one side of the second rough detection rod (39) is fixedly connected with a fourth pressure sensor (40).

3. A brake disc blank defect inspection apparatus according to claim 4, characterised in that: Both sides of the fixed sleeve (12) are fixedly connected with the second connecting block (19), the bottom of the two groups of second connecting blocks (19) is fixedly connected with the placing frame (20), the inside of the placing frame (20) is fixedly installed with the second electric push rod (21), the output end of the second electric push rod (21) is fixedly connected with the second mounting plate (22), both sides of the placing frame (20) are provided with the first sliding groove (23), the inside of the push block (31) is provided with the second pressure sensor (32), one side of the push block (31) is provided with the second distance measuring sensor (33).

4. A brake disc blank defect inspection apparatus according to claim 3, characterised in that: The output end of the motor (6) is connected with a clamping assembly (7), the clamping assembly (7) includes a support frame (701) fixedly connected to the upward output end of the motor (6), one side of the inside of the support frame (701) is fixedly connected with a first electric telescopic rod (702), the other side of the inside of the support frame (701) is fixedly connected with a limiting rod (705), the output end of the first electric telescopic rod (702) is connected with a first connecting block (703), the outside of the limiting rod (705) is slidably connected with a limiting block (706), a first connecting rod (704) is hinged between the limiting block (706) and the first connecting block (703), the top of the limiting block (706) is fixedly connected with a clamping block (707).

5. A brake disc blank defect inspection apparatus according to claim 4, characterised in that: One side of the support plate (2) is fixedly installed with a fourth electric telescopic rod (41), the output end of the fourth electric telescopic rod (41) is fixedly connected with one side of the first mounting plate (10).

6. A brake disc blank defect inspection apparatus according to claim 5, characterised in that: One side of the support plate (2) is fixedly connected with a second transverse sliding rail (42), the inside of the second transverse sliding rail (42) is provided with a second sliding module (43), one side of the second sliding module (43) is fixedly connected with a brake clamp (44), the inside of the brake clamp (44) is provided with a strain gauge pressure sensor (45).

7. A method of detecting defects in a brake disc blank using the apparatus for inspecting a brake disc blank according to claim 6, characterized in that: The method comprises the following steps: Method one: when the depth of the groove (9) needs to be detected, the first electric push rod (11) is started to push the fixed sleeve (12) to move downwards, the ball (15) in the connecting sleeve (13) is attached to the bottom of the groove (9), and at the same time, the motor (6) is started to make the motor (6) drive the clamping assembly (7) and the brake disc body (8) to rotate; The first pressure sensor (16) pressure value is c, the groove (9) depth standard value is a, if the first pressure sensor (16) at the ball (15) is c1, the groove depth is a1, and c1>c, then a1 If the first pressure sensor (16) at the ball (15) is c2, the groove (9) depth is a2, and c2 If the first pressure sensor (16) at the ball (15) is c3, the groove (9) depth is a3, and c3 is equal to c, then a3 is equal to a, the groove (9) depth is standard, and the brake disc body (8) is qualified and can enter the groove (9) width detection. Method two: when the width of the groove (9) needs to be detected, remotely start the second electric push rod (21) to drive the second mounting plate (22) to descend, and drive the second connecting rod (28) and the third mounting plate (27) and the second connecting frame (26) to move along the second sliding groove (25) of the first connecting frame (24), so that the second connecting frame (26) drives the third connecting frame (30) and the pushing block (31) to move, so that the two groups of pushing blocks (31) are in contact with the inner wall of the groove (9); The pressure value of the second pressure sensor (32) is e, and the width of the groove (9) is b. If the second pressure sensor (32) at the pushing block (31) is e1 at this time, the width of the groove (9) is b1, and e1>e, then b1<b, then the width of the groove (9) is too narrow, indicating that the brake disc body (8) is unqualified; If the second pressure sensor (32) at the pushing block (31) is e2 at this time, the width of the groove (9) is b2, and e2 If the second pressure sensor (32) at the pushing block (31) is e3 at this time, the width of the groove (9) is b1, and e3 is equal to e, then b3 is equal to b, then the width of the groove (9) is standard, indicating that the brake disc body (8) is qualified; Method three: the brake disc body (8) meeting the standard value of the depth and width of the groove (9) can be subjected to the next roughness detection; Remote start the second electric telescopic rod (35) and the third electric telescopic rod (38). After the second electric telescopic rod (35) is started, the first roughness detection rod (36) can be in contact with the upper surface of the brake disc body (8). The third pressure sensor (37) is used to detect the pressure in contact with the upper surface of the brake disc body (8). At the same time, after the third electric telescopic rod (38) is started, the second roughness detection rod (39) can be in contact with the side surface of the brake disc body (8). The fourth pressure sensor (40) is used to detect the pressure in contact with the side surface of the brake disc body (8). At this time, the third pressure sensor (37) has a preset pressure standard parameter value f, and the fourth pressure sensor (40) has a preset pressure standard parameter value F. The value of the brake caliper (44) clamping the brake disc body (8) is the brake clamping force value, which can be preset by the strain gauge pressure sensor (45) to have a standard parameter value range z, and the distance of the brake disc body (8) clamped is fixed. In the first step, the second electric telescopic rod (35) is started to make the first roughness detection rod (36) contact the upper surface of the brake disc body (8). If the actual detection value f1 of the third pressure sensor (37) is less than f, it indicates that the surface of the brake disc body (8) has a concave phenomenon, and the brake disc body 8 is unqualified. If the actual detection value f1 of the third pressure sensor (37) is greater than f, it indicates that the surface of the brake disc has a convex or burr, which causes the pressure value to increase. At this time, the surface of the brake disc body (8) can be polished by the existing technology, and the surface roughness is detected again after polishing. If the actual detection value f1 of the third pressure sensor (37) is less than or equal to f, it indicates that the brake disc body (8) meets the roughness standard, and the side roughness of the brake disc body (8) can be detected. Further, the third electric telescopic rod (38) is started to drive the second roughness detection rod (39) to contact the side surface of the brake disc body (8). If the actual detection value F1 of the fourth pressure sensor (40) is greater than F, it indicates that the side surface of the brake disc body (8) has a convex or burr, and the side roughness of the brake disc body (8) is unqualified, which indicates that the perpendicularity is unqualified. If the actual detection value F1 of the fourth pressure sensor (40) is less than F, it indicates that the side surface of the brake disc body (8) has a concave, and the side roughness of the brake disc body (8) is unqualified, which indicates that the perpendicularity is unqualified. The brake disc body (8) needs to be recycled. If the actual detection value F1 of the fourth pressure sensor (40) is equal to F, it indicates that the perpendicularity of the brake disc body (8) is qualified, and the brake caliper (44) can be used to clamp and detect the brake disc body (8) with a qualified upper surface and side surface. Specifically, if the upper surface and side roughness of the brake disc body (8) are both qualified, but the actual detection value z1 of the strain gauge pressure sensor (45) is greater than z, it indicates that the actual clamping force value exceeds the standard clamping force value, and the thickness of the brake disc body 8 is judged to be out of standard, which causes the brake caliper (44) to excessively press the brake disc body (8) under the standard clamping force, so that the clamping force after superposition exceeds the standard value z, which is easy to damage the brake caliper (44) and the brake disc body (8), and is unqualified. If the actual detection value z1 of the strain gauge pressure sensor (45) is less than z, it indicates that the actual clamping force value is less than the standard clamping force value, and the thickness of the brake disc body (8) is judged to be too thin, which causes the brake caliper (44) to be unable to effectively clamp the brake disc body (8), and the clamping force cannot fully act on the friction surface of the brake disc body (8), which is unqualified. If the actual detection value z1 of the strain gauge pressure sensor (45) is equal to z, it indicates that the actual clamping force value meets the standard clamping force value, and the thickness of the brake disc body (8) is standard, which is qualified. Through the above steps, the defects of the brake disc blank can be detected.

Images