A flaw detection system and method for a lightweight hub unit assembly

Abstract

The application discloses a kind of lightweight hub unit assembly flaw detection system and method, including conveying mechanism and the bearing frame of lightweight hub assembly on it, the flaw detection mechanism for detecting lightweight hub assembly is also provided on the conveying mechanism, and the application relates to the technical field of flaw detection detection.The lightweight hub unit assembly flaw detection system and method, the connecting roller is driven by the driving roller to rotate synchronously, and the connecting roller is in contact with the support rubber wheel on the bearing frame, and then the support rubber wheel can drive the hub to rotate, which facilitates the 360° comprehensive detection of the flaw detection mechanism, without additional driving structure, the connecting roller can also be used as a tensioning wheel, and the driving rollers on both sides rotate together, which is simple and convenient for linkage control.The detection system is set in the form of a conveyor belt, which can be directly connected to the production line to realize continuous detection, and the hub can be placed directly without clamping, further improving the detection efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flaw detection, in particular to a flaw detection system and method for a lightweight hub unit assembly. BACKGROUND

[0002] During the production process of the hub, some heat treatment and mechanical processing will be performed, so there may be some hidden damage and defects inside, and therefore the surface of the hub needs to be detected for flaws, such as the automatic flaw detection device for the surface of an airplane hub disclosed in Chinese patent CN113804750B, which comprises a mounting seat, a turntable rotatably connected to the mounting seat, a limiting device for fixing the position of the airplane hub, and a probe for detecting the airplane hub; a horizontal drive is mounted on the mounting seat, a vertical drive is fixedly connected to the horizontal drive, and a mounting bracket is arranged on the vertical drive; the probe is flexibly connected to the mounting bracket so as to swing around the connection between the probe and the mounting bracket; the horizontal drive is configured to stop when the probe is in contact with the airplane hub and the swing angle of the probe is greater than a set value, and to start when the swing angle is less than the set value; the vertical drive is configured to start when the probe is in contact with the airplane hub and the swing angle of the probe is greater than the set value, and to stop when the swing angle is less than the set value. This application can achieve full coverage detection of the surface of the airplane hub during detection, improving the detection efficiency.

[0003] However, this device needs to place the hubs one by one on the turntable, and uses the driving mechanism to drive the turntable to rotate to realize the detection of the hubs, which needs to put and take the hubs one by one, and the operation is troublesome and inefficient, which is not suitable for continuous production. In addition, although the turntable of the device is arranged in a circular table type structure to facilitate the centering of the hub, the inner side of the hub cannot be detected, and only the outer arc surface can be detected, which is not comprehensive and needs to be turned over subsequently, which is inconvenient to use. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a flaw detection system and method for a lightweight hub unit assembly, which solves the problem that the existing hub flaw detection device can only detect one by one, which is time-consuming and laborious, and cannot detect comprehensively at the same time.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a flaw detection system for a lightweight hub unit assembly, comprising a conveying mechanism and a carrying rack conveying a lightweight hub assembly thereon, wherein a flaw detection mechanism for detecting the lightweight hub assembly is further arranged on the conveying mechanism, and the conveying mechanism comprises an upper conveying mechanism and a supporting leg fixedly connected to the bottom of the upper conveying mechanism, and a lower conveying mechanism opposite to the upper conveying mechanism is further arranged on the inner side of the supporting leg below the upper conveying mechanism.

[0006] The transmission mechanism comprises a transmission frame, two groups of conveying belts driven by transmission rollers on the inside of the transmission frame, a connecting roller longitudinally and slidably connected between the two groups of conveying belts on the inside of the transmission frame, and the front and rear ends of the connecting roller penetrating the transmission frame, and the transmission frame being provided with limiting sliding grooves on the front and rear sides and adapted to the center shaft of the connecting roller, and the front and rear sides of the supporting leg being fixedly connected with air cylinders, and the top end of the air cylinder being rotatably sleeved on the end of the connecting roller;

[0007] The bearing frame comprises a bottom plate and support rubber wheels rotatably connected to the four corners of the top of the bottom plate, and the curved surfaces of the support rubber wheels and the connecting roller are provided with tooth grooves in the axial direction, the surfaces of the transmission rollers at the close end of the two groups of conveying belts and the front end of the connecting roller are fixedly connected with synchronous wheels, the three synchronous wheels are connected by a synchronous belt, the connecting roller can synchronously rotate with the transmission rollers on both sides when being lifted to the upper and lower limit positions, and the support rubber wheel in contact with the connecting roller can be driven to rotate when being located at the top, and the bottom plate is further provided with an anti-toppling structure for stabilizing the lightweight hub assembly.

[0008] Preferably, the anti-toppling structure comprises a frame arranged at the middle position of the bottom plate, and two corners on the top inside of the frame are rotatably connected with magnetic rollers capable of magnetically attracting the lightweight hub assembly, the left and right sides of the top inside of the bottom plate are fixedly connected with guide plates, the left and right sides of the inside of the frame are fixedly connected with vertical plates, the inside of the frame is slidably attached to the surface of the guide plate to limit the front and rear swinging of the frame, a positioning bolt penetrates the inside of the guide plate horizontally, and the inside of the vertical plate is provided with a sliding groove matched with the positioning bolt to limit the frame from completely separating from the guide plate.

[0009] Preferably, the inside of the frame is further fixedly connected with a slide sleeve about the center, and a buffer rod higher than the frame penetrates the inside of the slide sleeve, a rubber sleeve is sleeved on the top end of the buffer rod, and a damping sleeve is sleeved on the outside of the buffer rod and closely attached to the inner wall of the slide sleeve.

[0010] Preferably, the flaw detection mechanism comprises a front mounting frame mounted on the front side of the transmission frame and a rear mounting frame rotatably connected to the rear side of the transmission frame, a threaded sleeve penetrates and slidably connects the top of the rear mounting frame, and a adjustable mounting frame is fixedly connected to the front side of the threaded sleeve, a plurality of detection probes for simultaneously detecting the inner and outer surfaces of the lightweight hub assembly are fixedly connected in the adjustable mounting frame and the front mounting frame.

[0011] Preferably, a stud penetrates and is fixedly connected to the bottom of the front mounting frame on the front side of the transmission frame, a vertical groove matched with the stud is formed in the inside of the bottom of the front mounting frame, a threaded handle is threadedly connected to the surface of the stud and located on the front side of the front mounting frame, a non-slip pad is pasted on the front side of the front mounting frame and located around the vertical groove, and a positioning sleeve slidably sleeved on the outside of the front mounting frame is fixedly connected to the bottom of the front side of the transmission frame.

[0012] Preferably, a limiting seat is fixedly connected to the top of the rear side of the rear mounting frame below the threaded sleeve, a screw rod is rotatably connected in the limiting seat and penetrates the threaded sleeve, a rotating cap is fixedly connected to the bottom end of the screw rod, and a scale line indicating the height of the center line is arranged on the rear side of the rear mounting frame at the side of the threaded sleeve.

[0013] Preferably, a tripod is fixedly connected to the bottom of the rear side of the rear mounting frame, and a push air cylinder is fixedly connected to one side of the tripod.

[0014] Preferably, a lifting ring is fixedly connected to the top of the front side of the adjustable mounting frame and the top of the front side of the transmission frame, a pull rope is connected between the two lifting rings, and a pulley for the pull rope is fixedly connected to the top end of the front mounting frame.

[0015] The application further discloses a detection method of the flaw detection system based on the lightweight hub unit assembly.

[0016] Step one: first, the detection height of the flaw detection mechanism is adjusted according to the size of the lightweight hub assembly to be detected.

[0017] Step two: the bearing frame is placed on the upper transmission mechanism, then the lightweight hub assembly is placed on the upper transmission mechanism and transmitted to the right, when the lightweight hub assembly is transmitted to the connecting roller, the connecting roller is lifted to block the transmission, and the flaw detection mechanism is controlled to cover the lightweight hub assembly.

[0018] Step three: the bearing frame drives the lightweight hub assembly to rotate under the driving of the connecting roller, and the flaw detection mechanism is used to detect the lightweight hub assembly in 360 degrees.

[0019] Step four: after the detection is completed, the connecting roller is lowered, the bearing frame continues to drive the lightweight hub assembly to the right, and after the bearing frame and the lightweight hub assembly are taken off at the right end of the upper transmission mechanism, the bearing frame is placed on the lower transmission mechanism and transmitted to the left to the original point.

[0020] Preferably, a sensor is arranged on the left half of the transmission frame, the sensor is used to sense the bearing frame, and the connecting roller is lifted by the air cylinder after the bearing frame passes, and the connecting roller is automatically lowered after a set time.

[0021] Beneficial effects

[0022] The application provides a flaw detection system and method of a lightweight hub unit assembly.

[0023] 1. The flaw detection system and method of the lightweight hub unit assembly, by setting up a bearing frame to bear the hub, and setting up a liftable connecting roller between the two conveying belts, after lifting the connecting roller, on one hand, it can block the bearing frame to stop at the designated position for flaw detection, while the connecting roller is driven by the transmission roller to rotate synchronously, at the same time, the connecting roller contacts with the supporting rubber wheel on the bearing frame, and then the supporting rubber wheel can drive the hub to rotate, which facilitates the 360° comprehensive detection of the flaw detection mechanism, without additional driving structure, at the same time, the connecting roller can also be used as a tensioning roller, rotating together with the transmission rollers on both sides, which is simple and convenient for linkage control, and the detection system is set in the form of conveying belt, which can be directly connected with the production line to realize continuous detection, and the hub can be directly placed without clamping, further improving the detection efficiency.

[0024] 2. The flaw detection system and method of the lightweight hub unit assembly, by setting up an anti-toppling structure in the bearing frame, after placing the hub, the magnetic force of the magnetic roller can automatically attract the frame and the magnetic roller and other structures, so that the magnetic roller is attached to the surface of the hub, and the frame is limited by the guide plate, which can avoid the front and back deviation of the magnetic roller, and then the magnetic roller can be used to support the hub, which can avoid the hub from falling down during transmission, and by setting up the structures such as sliding sleeve, buffer rod, rubber sleeve and damping sleeve, when the magnetic roller is attracted, the buffer rod can first resist the hub, and then the damping sleeve can realize buffering by resistance, which can avoid the damage to the surface of the hub caused by the direct collision of the magnetic roller.

[0025] 3. The flaw detection system and method of the lightweight hub unit assembly, by setting up mounting frames in front and back to install detection probes, which can detect the hub in all directions, and the rear mounting frame on the back side can swing backward, so that after the hub is conveyed away, the rear mounting frame can automatically deflect backward, without affecting the subsequent hub conveying, and the height of the detection parts in front and back can be adjusted, so that it can adapt to hubs of different diameters, improving the adaptability.

[0026] 4. The flaw detection system and method of the lightweight hub unit assembly, by setting up a tripod on the rear side of the mounting frame, which can be stably supported after the mounting frame is tilted and opened, and the telescopic pushing of the push cylinder can control the automatic swinging of the mounting frame, which is convenient to operate, and the adjustable mounting frame top and transmission frame can be connected by a pull rope, which can hold the mounting frame after it swings open, and the support is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the front view of the conveying mechanism and the bearing frame of the application;

[0028] Figure 2 It is the local structure schematic view of the lightweight hub assembly, the bearing frame and the upper transmission mechanism of the application;

[0029] Figure 3A schematic diagram of a state of the upper conveying mechanism of the present application;

[0030] Figure 4 A schematic diagram of a state two of the upper conveying mechanism of the present application;

[0031] Figure 5 A schematic diagram of the bearing frame of the present application;

[0032] Figure 6 A schematic diagram of the adsorption of the lightweight hub assembly and the anti-toppling structure of the present application;

[0033] Figure 7 A schematic diagram of the detection state of the flaw detection mechanism of the present application;

[0034] Figure 8 A schematic diagram of the open state of the flaw detection mechanism of the present application;

[0035] Figure 9 A schematic diagram of the structure of the connection between the front mounting frame and the conveying frame of the present application;

[0036] Figure 10 A side view of the structure of the threaded sleeve of the present application.

[0037] In the figure: 1-lightweight hub assembly, 2-bearing frame, 21-bottom plate, 22-supporting rubber wheel, 23-anti-toppling structure, 231-frame, 232-magnetic roller, 233-guide plate, 234-vertical plate, 235-positioning bolt, 236-rubber sleeve, 237-damping sleeve, 238-sliding sleeve, 239-buffer rod, 3-upper conveying mechanism, 31-conveying frame, 32-driving roller, 33-conveying belt, 34-connecting roller, 35-limiting sliding groove, 36-air cylinder, 37-stud, 38-threaded handle, 39-positioning sleeve, 310-synchronous wheel, 311-synchronous belt, 4-flaw detection mechanism, 41-front mounting frame, 42-rear mounting frame, 43-threaded sleeve, 44-adjustable mounting frame, 45-detection probe, 46-vertical groove, 47-anti-slip pad, 48-limiting seat, 49-screw rod, 410-tripod, 411-supporting seat, 412-suspension ring, 413-pulling rope, 414-pushing air cylinder, 415-pulley, 5-lower conveying mechanism, 6-supporting leg. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. 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 other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] The present application provides four technical solutions:

[0040] Figures 1-5 The first embodiment is shown: a flaw detection system of a lightweight hub unit assembly, comprising a conveying mechanism and a carrying frame 2 carrying a lightweight hub assembly 1 transmitted thereon, and a flaw detection mechanism 4 for detecting the lightweight hub assembly 1 is also arranged on the conveying mechanism, the conveying mechanism comprises an upper transmission mechanism 3 and a supporting leg 6 fixedly connected at the bottom thereof, and a lower transmission mechanism 5 opposite to the upper transmission mechanism 3 is also installed on the inner side of the supporting leg 6 below the upper transmission mechanism 3, the upper transmission mechanism 3 comprises a transmission frame 31, two groups of conveying belts 33 are driven by transmission rollers 32 on the inner side of the transmission frame 31, a connecting roller 34 is longitudinally and slidably connected on the inner side of the transmission frame 31 between the two groups of conveying belts 33, the connecting roller 34 penetrates through the transmission frame 31 at its front and rear ends, and the transmission frame 31 is provided with limiting sliding grooves 35 on its front and rear sides, which are adapted to the center axis of the connecting roller 34, air cylinders 36 are fixedly connected to the front and rear sides of the supporting leg 6, and the top ends of the air cylinders 36 are rotatably sleeved on the end portions of the connecting roller 34;

[0041] The carrying frame 2 comprises a bottom plate 21 and support rubber wheels 22 rotatably connected to the top four corners thereof, and the support rubber wheels 22 and the curved surface of the connecting roller 34 are both provided with tooth grooves in the axial direction, the support rubber wheels 22 cooperating with the tooth grooves can increase the friction on one hand and protect the surface of the lightweight hub assembly 1 on the other hand, and the tooth grooves can make the support rubber wheels 22 and the connecting roller 34 intermesh, the surfaces of the transmission rollers 32 at the close ends of the two groups of conveying belts 33 and the connecting roller 34 are fixedly connected with synchronous wheels 310, and the three synchronous wheels 310 are drivingly connected by synchronous belts 311, so that the connecting roller 34 can synchronously rotate with the transmission rollers 32 on both sides when it is lifted to the upper and lower limit positions, and the support rubber wheels 22 in contact with the connecting roller 34 can be rotated when they are located at the topmost position, and the bottom plate 21 is further provided with an anti-toppling structure 23 for stabilizing the lightweight hub assembly 1.

[0042] By arranging the carrying frame 2 to carry the hub and arranging the lifting connecting roller 34 between the two conveying belts 33, the carrying frame 2 can be stopped at a specified position for flaw detection after the connecting roller 34 is lifted, the connecting roller 34 is synchronously rotated by the driving of the transmission rollers 32, and the connecting roller 34 is in contact with the support rubber wheels 22 on the carrying frame 2, so that the hub can be rotated by the support rubber wheels 22, which facilitates the 360° comprehensive detection of the flaw detection mechanism 4 without the need for additional driving structure, and the connecting roller 34 can also serve as a tensioning wheel to rotate together with the transmission rollers 32 on both sides, which is simple and convenient for linkage control.

[0043] Figures 5-6The second embodiment is shown, and the main difference with the first embodiment is that the anti-toppling structure 23 comprises a frame 231 arranged at the middle position of the bottom plate 21, and two corners of the inside top of the frame 231 are rotationally connected with the magnetic rollers 232 of the magnetically-attractive lightweight hub assembly 1, the top of the bottom plate 21 and the left and right sides inside the frame 231 are fixedly connected with the guide plates 233, the inside of the frame 231 and the left and right sides of the guide plates 233 are fixedly connected with the vertical plates 234, the inside of the frame 231 is slidingly attached to the surface of the guide plates 233 to limit the front and back swinging of the frame 231, the inside of the guide plates 233 is horizontally penetrated with the positioning bolts 235, and the inside of the vertical plates 234 is provided with the sliding grooves matched with the positioning bolts 235 to limit the frame 231 from completely separating from the guide plates 233.

[0044] The inside of the frame 231 is also fixedly connected with the sliding sleeves 238 about the center, and the inside of the sliding sleeves 238 is penetrated with the buffer rods 239 higher than the frame 231, the top end of the buffer rods 239 is sleeved with the rubber sleeves 236, and the outside of the buffer rods 239 is sleeved with the damping sleeves 237 tightly attached to the inner wall of the sliding sleeves 238.

[0045] By arranging the anti-toppling structure 23 in the bearing frame 2, the frame 231 and the magnetic rollers 232 and other structures can be automatically attracted after the hub is placed, so that the magnetic rollers 232 are attached to the surface of the hub, and the frame 231 is limited by the guide plates 233, so that the magnetic rollers 232 can be prevented from shifting forward and backward, and the hub can be stabilized by the magnetic rollers 232, so that the hub can be prevented from falling during transmission, and the buffer rods 239 can be first pressed against the hub when the magnetic rollers 232 are attracted, and then the damping sleeves 237 are used to realize buffering, so that the hub surface can be prevented from being damaged by the direct collision of the magnetic rollers 232.

[0046] Figures 7-10 The third embodiment is shown, and the main difference with the second embodiment is that the flaw detection mechanism 4 comprises the front mounting frame 41 mounted on the front side of the transmission frame 31, and the rear mounting frame 42 rotationally connected on the rear side of the transmission frame 31, the top of the rear mounting frame 42 is penetrated with the threaded sleeve 43 slidingly connected, and the front side of the threaded sleeve 43 is fixedly connected with the adjustable mounting frame 44, the adjustable mounting frame 44 and the front mounting frame 41 are fixedly connected with a plurality of detection probes 45 simultaneously detecting the inner and outer surfaces of the lightweight hub assembly 1, and the detection probe 45 is the existing ultrasonic probe and other structures.

[0047] The front side of the transmission frame 31 is fixedly connected with a stud 37 penetrating through the bottom of the front mounting frame 41, and the inside of the bottom of the front mounting frame 41 is provided with a vertical groove 46 matched with the stud 37, and the surface of the stud 37 and located at the front side of the front mounting frame 41 is threadedly connected with a threaded handle 38, and the front side of the front mounting frame 41 and located at the periphery of the vertical groove 46 is pasted with a non-slip pad 47, and the bottom of the front side of the transmission frame 31 is fixedly connected with a positioning sleeve 39 sleeved on the outside of the front mounting frame 41.

[0048] The top of the rear side of the rear mounting frame 42 and located below the threaded sleeve 43 is fixedly connected with a limiting seat 48, and the inside of the limiting seat 48 is rotatably connected with a lead screw 49 threadedly penetrating through the threaded sleeve 43, and the bottom end of the lead screw 49 is fixedly connected with a rotating cap, and the middle height of the threaded sleeve 43 is provided with a center line, and the rear side of the rear mounting frame 42 and located at one side of the threaded sleeve 43 is provided with a scale line indicating the height of the center line.

[0049] By arranging the mounting frames at the front and rear, the detection probe 45 can be installed, the wheel hub can be detected in all directions, the rear mounting frame 42 at the rear side can swing backward, and then the rear mounting frame 42 can automatically deflect backward after the wheel hub is conveyed away, so that the subsequent wheel hub is not affected when conveying, and the height of the detection parts at the front and rear can be adjusted, so that the wheel hub of different diameters can be matched, and the adaptability is improved.

[0050] Figures 7-8 The fourth embodiment is shown, and the main difference from the third embodiment is that the bottom of the rear side of the rear mounting frame 42 is fixedly connected with a tripod 410, one side of the tripod 410 is fixedly connected with a push air cylinder 414, the rear side of the transmission frame 31 is fixedly connected with a support seat 411 provided with a semicircular groove at the top corresponding to the position of the push air cylinder 414, and the output end of the push air cylinder 414 is spherical and abuts against the semicircular groove of the support seat 411.

[0051] The top of the front side of the adjustable mounting frame 44 and the top of the front side of the transmission frame 31 are fixedly connected with lifting rings 412, and a pull rope 413 is connected between the two lifting rings 412, and the top end of the front mounting frame 41 is fixedly connected with a pulley 415 for the pull rope 413.

[0052] By arranging the tripod 410 at the rear side of the mounting frame 42, stable support can be achieved when the mounting frame 42 is tilted and opened, the push air cylinder 414 is used for telescopic pushing, the automatic swinging of the mounting frame 42 can be controlled, the operation is convenient, and the top of the adjustable mounting frame 44 and the transmission frame 31 are connected by the pull rope 413, so that the mounting frame 42 can be pulled after swinging open, and the support is more stable.

[0053] The application also discloses a detection method of the flaw detection system based on the lightweight wheel hub unit assembly.

[0054] Step one: first according to the size of the lightweight hub assembly 1 to be detected, adjust the detection height of the detection mechanism 4; when adjusting the height of the front detection probe 45, first loosen the threaded handle 38, then adjust the front mounting bracket 41 to the appropriate height, and then tighten the threaded handle 38 for fixation; when adjusting the height of the rear detection probe 45, hold the adjustable mounting bracket 44 and rotate the screw rod 49 to adjust the threaded sleeve 43 to the appropriate height;

[0055] Step two: place the carrier 2 on the upper transmission mechanism 3, then place the lightweight hub assembly 1 on the upper transmission mechanism 3 and transmit to the right; at this time, the magnetic force of the magnetic roller 232 can lift the magnetic roller 232 together with the frame 231, the top rubber sleeve 236 of the buffer rod 239 first abuts against the bottom of the lightweight hub assembly 1, then the frame 231 continues to rise, the sliding sleeve 238 in the frame 231 rubs against the damping sleeve 237 on the surface of the buffer rod 239 to buffer and slow down the collision speed of the magnetic roller 232 and the lightweight hub assembly 1; when the carrier 2 carrying the lightweight hub assembly 1 transmits through the sensor, the sensor senses the passing of the carrier 2 and starts the cylinder 36 to lift the connecting roller 34 through the external controller, when the carrier 2 moves to the connecting roller 34, the connecting roller 34 is blocked by the lifted connecting roller 34, and the rear mounting bracket 42 is swung forward to stand up by controlling the extension of the push cylinder 414, so that the adjustable mounting bracket 44 covers inside and outside the lightweight hub assembly 1;

[0056] Step three: the connecting roller 34 is driven by the transmission roller 32 through the cooperation of the synchronous wheel 310 and the synchronous belt 311, and the right side support rubber wheel 22 of the carrier 2 drives the lightweight hub assembly 1 to rotate under the driving of the connecting roller 34, and the detection mechanism 4 is used to conduct 360° comprehensive detection;

[0057] Step four: after the connecting roller 34 is lifted for a set time, the connecting roller 34 is automatically lowered by controlling the cylinder 36, and the push cylinder 414 is retracted, the carrier 2 continues to drive the lightweight hub assembly 1 to transmit to the right, and the adjustable mounting bracket 44 and the rear mounting bracket 42 are swung to reset in sequence by using the arc surface inside the lightweight hub assembly 1; when the carrier 2 carrying the lightweight hub assembly 1 transmits to the right end of the upper transmission mechanism 3, the carrier 2 and the lightweight hub assembly 1 are taken off, then the carrier 2 is placed on the lower transmission mechanism 5 and transmitted to the left to the original point.

[0058] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of each electric appliance are not specifically limited, and conventional equipment can be used.

[0059] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0060] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A flaw detection system for a lightweight wheel hub assembly, comprising a conveying mechanism and a support frame carrying the lightweight wheel hub assembly, wherein the conveying mechanism is further provided with a flaw detection mechanism for detecting the lightweight wheel hub assembly, characterized in that: The conveying mechanism comprises an upper conveying mechanism and a supporting leg fixedly connected to the bottom of the upper conveying mechanism, and a lower conveying mechanism reversely conveying relative to the upper conveying mechanism is further arranged on the inner side of the supporting leg below the upper conveying mechanism. The upper conveying mechanism comprises a conveying frame, two groups of conveying belts driven by transmission rollers on the inner side of the conveying frame, and a connecting roller longitudinally and slidably connected between the two groups of conveying belts on the inner side of the conveying frame, wherein the connecting roller penetrates through the conveying frame at both ends thereof, and the conveying frame is provided with limiting sliding grooves adapted to the central shaft of the connecting roller on the front and back sides thereof, and the front and back sides of the supporting leg are fixedly connected with air cylinders, and the top end of the air cylinder is rotatably sleeved with the end of the connecting roller. The supporting frame comprises a bottom plate and supporting rubber wheels rotatably connected to the four corners of the top of the bottom plate, and the tooth grooves are arranged on the curved surfaces of the supporting rubber wheels and the connecting roller in the axial direction, the surfaces of the transmission rollers at the close end of the two groups of conveying belts and the front end of the connecting roller are fixedly connected with synchronous wheels, the three synchronous wheels are connected with each other through a synchronous belt, so that the connecting roller can synchronously rotate with the transmission rollers on both sides when the connecting roller is lifted to the uppermost and lowermost positions, and the supporting rubber wheel in contact with the connecting roller can be driven to rotate when the connecting roller is at the topmost position, and the bottom plate is further provided with an anti-toppling structure for stabilizing the lightweight hub assembly. The flaw detection mechanism comprises a front mounting frame arranged on the front side of the conveying frame and a rear mounting frame rotatably connected to the rear side of the conveying frame, a threaded sleeve is slidably connected to the top of the rear mounting frame, and an adjustable mounting frame is fixedly connected to the front side of the threaded sleeve, and a plurality of detection probes for simultaneously detecting the inner and outer surfaces of the lightweight hub assembly are fixedly connected to the inner sides of the adjustable mounting frame and the front mounting frame.

2. A kind of flaw detection system of the detection system of lightweight wheel hub unit assembly according to claim 1, it is characterized in that: The anti-toppling structure comprises a frame arranged on the middle position of the bottom plate, and magnetic rollers magnetically attracting the lightweight hub assembly are rotatably connected to the two corners on the inner top side of the frame, guide plates are fixedly connected to the left and right sides of the inner top side of the frame, vertical plates are fixedly connected to the left and right sides of the inner top side of the frame, the inner sides of the guide plates are horizontally penetrated with positioning bolts, and the inner sides of the vertical plates are provided with sliding grooves adapted to the positioning bolts to limit the frame from completely separating from the guide plates.

3. The system for detecting a flaw of a lightweight hub unit assembly according to claim 2, wherein: The inner sides of the frame are slidably attached to the surfaces of the guide plates to limit the front and back swinging of the frame, the inner sides of the guide plates are horizontally penetrated with positioning bolts, and the inner sides of the vertical plates are provided with sliding grooves adapted to the positioning bolts to limit the frame from completely separating from the guide plates.

4. The system for detecting flaws in a lightweight wheel hub unit assembly of claim 1, wherein: The inner sides of the frame are slidably attached to the surfaces of the guide plates to limit the front and back swinging of the frame, the inner sides of the guide plates are horizontally penetrated with positioning bolts, and the inner sides of the vertical plates are provided with sliding grooves adapted to the positioning bolts to limit the frame from completely separating from the guide plates. The front side of the conveying frame is fixedly connected with a stud penetrating through the bottom of the front mounting frame, the inner side of the bottom of the front mounting frame is provided with a vertical groove adapted to the stud, the surface of the stud and the front side of the front mounting frame are threadedly connected with a threaded handle, the front side of the front mounting frame and the periphery of the vertical groove are pasted with a non-slip pad, and the bottom of the front side of the conveying frame is fixedly connected with a positioning sleeve slidably sleeved with the outside of the front mounting frame.

5. The system for detecting flaws in a lightweight wheel hub unit assembly of claim 1, wherein: The top of the rear side of the rear mounting frame is fixedly connected with a limiting seat below the threaded sleeve, a screw rod is rotatably connected in the limiting seat and penetrates through the threaded sleeve, the bottom end of the screw rod is fixedly connected with a rotating cap, the middle height of the threaded sleeve is provided with a center line, and the rear side of the rear mounting frame is provided with a scale line indicating the height of the center line.

6. The system for detecting flaws in a lightweight wheel hub unit assembly of claim 1, wherein: The bottom of the rear side of the rear mounting frame is fixedly connected with a tripod, one side of the tripod is fixedly connected with a push air cylinder, the rear side of the transmission frame is fixedly connected with a support seat with a semicircular groove at the top corresponding to the position of the push air cylinder, and the output end of the push air cylinder is a spherical surface and is pressed in the semicircular groove of the support seat.

7. The system for detecting flaws in a lightweight wheel hub unit assembly of claim 1, wherein: The top of the front side of the adjustable mounting frame and the top of the front side of the transmission frame are fixedly connected with lifting rings, a pull rope is connected between the two lifting rings, and the top end of the front mounting frame is fixedly connected with a pulley for the pull rope.

8. A method of inspecting a lightweight wheel hub unit assembly according to any one of claims 1-7, characterized in that: Specifically includes the following steps: Step one: first, adjust the detection height of the flaw detection mechanism according to the size of the lightweight hub assembly to be detected; Step two: place the bearing frame on the upper transmission mechanism, then place the lightweight hub assembly on the upper transmission mechanism and transmit it to the right, when the transmission reaches the connecting roller, the connecting roller is blocked, and the flaw detection mechanism is controlled to cover the lightweight hub assembly; Step three: the bearing frame drives the lightweight hub assembly to rotate under the driving of the connecting roller, and the flaw detection mechanism is used to detect the lightweight hub assembly in 360 degrees; Step four: after the detection is completed, the connecting roller is lowered, the bearing frame continues to drive the lightweight hub assembly to the right, and after the bearing frame and the lightweight hub assembly are taken off at the right end of the upper transmission mechanism, the bearing frame is placed on the lower transmission mechanism and transmitted to the left to the original point.

9. The method of claim 8, wherein: The left half of the transmission frame is provided with a sensor, which senses the bearing frame passing through and then starts the cylinder to lift the connecting roller, and automatically lowers after a set time.

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