A detection device for detecting defects of an automobile wheel hub

Abstract

The application discloses a kind of detection device for detecting automobile wheel hub defects, and the application relates to the technical field of wheel hub defect detection, including bottom plate, the bottom end sidewall of bottom plate is symmetrically fixedly connected with two support plates.The application sets up independent flaw detection execution mechanism for wheel hub inner wall, wheel rim inner wall and wheel hub outer wall respectively, realizes partition special detection, avoids the problem that single detection probe cannot adapt to complex curved surface, adopts two-stage feeding mode of vertical adjustment of seventh electric telescopic rod and horizontal pushing of eighth electric telescopic rod, transports third ultrasonic flaw detection sensor to wheel hub outer wall detection station, cooperates with tenth motor to adjust detection inclination of third U plate, makes third ultrasonic flaw detection sensor adhere to wheel hub outer wall arc structure, completes wheel hub outer wall global scanning flaw detection, and multiple intelligent sensors are divided into work detection, are adapted to the curved surface structure of different positions of wheel hub, effectively eliminate detection blind area, and improve the comprehensiveness of defect identification.

Description

Technical Field

[0001] This invention belongs to the field of wheel hub defect detection technology, and in particular relates to a detection device for detecting defects in automobile wheel hubs. Background Technology

[0002] As a key safety component that bears the load, automobile wheel hubs are prone to hidden defects such as cracks, porosity, and delamination during the casting and processing of their rims, inner walls, and outer walls. If these defects are not detected, they can easily cause driving safety hazards.

[0003] Currently, most existing wheel hub non-destructive testing equipment adopts a fixed single-probe testing structure or manual handheld flaw detection method. The testing methods are limited, and they generally suffer from technical defects such as low sensor detection freedom and poor tooling adaptability. Traditional testing equipment lacks reasonable mechanical avoidance logic, and structural interference is prone to occur during mechanism switching. It is unable to perform close-fitting sensing and acquisition on the complex irregular curved surface of the wheel hub. At the same time, the existing testing equipment has a low degree of automation linkage, and most of them rely on manual adjustment of the detection distance and detection angle of the intelligent sensor. The amount of manual intervention is large, and the detection error is relatively high. It is difficult to achieve integrated intelligent flaw detection of multiple areas of the wheel hub without blind spots, and it cannot meet the production requirements of high-precision mass testing in industrialization.

[0004] Therefore, we propose a detection device for detecting defects in automobile wheel hubs to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A detection device for detecting defects in automobile wheel hubs includes a base plate. Two support plates are symmetrically fixedly connected to the bottom sidewall of the base plate. A wheel rim fixing and detection assembly for fixing one side of the wheel hub and detecting defects on the surface of the wheel rim is rotatably connected to the top sidewall of the base plate. A wheel hub fixing and detection assembly for fixing the inner wall of the wheel hub and detecting defects on the inner wall, outer wall, and inner wall surface of the wheel rim is also rotatably connected to the top sidewall of the base plate.

[0007] Preferably, the rim fixing detection assembly includes a first support rod rotatably connected to the top side wall of the base plate, a first motor fixedly connected to the bottom side wall of the base plate, the output end of the first motor passing through the side wall of the base plate and fixedly connected to one end of the first support rod, a first side plate fixedly connected to one end of the first support rod, a first electric telescopic rod fixedly connected to the side wall of the first side plate, and a fixed plate fixedly connected to the telescopic end of the first electric telescopic rod.

[0008] Preferably, the side wall of the fixed plate is provided with a first groove, the inner wall of the first groove is fixedly connected to a first electric slide rail, the side wall of the first electric slide rail is slidably connected to a plurality of first slide plates, the side wall of each of the first slide plates is fixedly connected to a fixed plate, the inner wall of each of the fixed plates is fixedly connected to a second electric slide rail, the side wall of the second electric slide rail is slidably connected to a second slide plate, and the side wall of the second slide plate is fixedly connected to a clamping plate.

[0009] Preferably, the inner wall of the card plate is rotatably connected to two connecting rods, and the side wall of the card plate is fixedly connected to two second motors. The output end of the second motor passes through the side wall of the card plate and is fixedly connected to one end of the corresponding connecting rod. The wall of each connecting rod is fixedly connected to a second electric telescopic rod, and the telescopic end of each second electric telescopic rod is fixedly connected to a first clamping plate. The other side wall of the first side plate is fixedly connected to a third electric telescopic rod.

[0010] Preferably, the telescopic end of the third electric telescopic rod is fixedly connected to a mounting frame, the inner wall of the mounting frame is fixedly connected to a third motor, the side wall of the mounting frame is rotatably connected to a third electric slide rail, the output end of the third motor passes through the side wall of the mounting frame and is fixedly connected to the side wall of the third electric slide rail, the side wall of the third electric slide rail is slidably connected to a third sliding plate, the inner wall of the third sliding plate is fixedly connected to a fourth motor, and the output end of the fourth motor is fixedly connected to a fourth electric telescopic rod.

[0011] Preferably, the telescopic end of the fourth electric telescopic rod is fixedly connected to a first U-plate, the inner wall of the first U-plate is rotatably connected to a first round rod, the side wall of the first U-plate is fixedly connected to a fifth motor, the output end of the fifth motor passes through the side wall of the first U-plate and is fixedly connected to one end of the first round rod, the rod wall of the first round rod is fixedly connected to a first mounting rod, and one end of the first mounting rod is fixedly connected to a first ultrasonic flaw detection sensor.

[0012] Preferably, the hub fixing detection assembly includes a second support rod rotatably connected to the top side wall of the base plate, a sixth motor fixedly connected to the bottom side wall of the base plate, the output end of the sixth motor passing through the side wall of the base plate and fixedly connected to one end of the second support rod, a second side plate fixedly connected to one end of the second support rod, a ninth electric telescopic rod fixedly connected to the side wall of the second side plate, a connecting plate fixedly connected to the telescopic end of the ninth electric telescopic rod, a plurality of fifth electric telescopic rods fixedly connected to the outer wall of the connecting plate, and a second clamping plate fixedly connected to the telescopic end of each of the fifth electric telescopic rods.

[0013] Preferably, a connecting frame is fixedly connected to the other side wall of the second side plate, a seventh motor is fixedly connected to the inner wall of the connecting frame, a mounting block is rotatably connected to the side wall of the connecting frame, the output end of the seventh motor passes through the side wall of the connecting frame and is fixedly connected to the side wall of the mounting block, an eighth motor is fixedly connected to the inner wall of the mounting block, a fourth electric slide rail is fixedly connected to the output end of the eighth motor, a fourth sliding plate is slidably connected to the side wall of the fourth electric slide rail, and a sixth electric telescopic rod is fixedly connected to the side wall of the fourth sliding plate.

[0014] Preferably, the telescopic end of the sixth electric telescopic rod is fixedly connected to a second U-plate, the inner wall of the second U-plate is rotatably connected to a second round rod, the side wall of the second U-plate is fixedly connected to a ninth motor, the output end of the ninth motor passes through the side wall of the second U-plate and is fixedly connected to one end of the second round rod, the rod wall of the second round rod is fixedly connected to a second mounting rod, and one end of the second mounting rod is fixedly connected to a second ultrasonic flaw detection sensor.

[0015] Preferably, a seventh electric telescopic rod is fixedly connected to the bottom side wall of the connecting frame, a guide plate is fixedly connected to the telescopic end of the seventh electric telescopic rod, an eighth electric telescopic rod is fixedly connected to one end of the guide plate, a third U-plate is fixedly connected to the telescopic end of the eighth electric telescopic rod, a third round rod is rotatably connected to the inner wall of the third U-plate, a tenth motor is fixedly connected to the side wall of the third U-plate, the output end of the tenth motor passes through the side wall of the third U-plate and is fixedly connected to one end of the third round rod, a third mounting rod is fixedly connected to the wall of the third round rod, and a third ultrasonic flaw detection sensor is fixedly connected to one end of the third mounting rod.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention integrates the clamping and flaw detection mechanisms via a second side plate, improving the overall structural compactness by centrally supporting the clamping and flaw detection mechanisms. A ninth electric telescopic rod pushes the connecting plate into the hub's inner cavity. Multiple sets of fifth electric telescopic rods are evenly distributed on the connecting plate, allowing the second clamping plate to expand outwards synchronously. This achieves a centering expansion and fixation of the hub's inner wall, unlike traditional single-point clamping on the outside. The inner wall expansion and fixation method distributes force evenly, preventing damage to the hub's outer surface. It is also adaptable to hubs with different inner diameters, offering greater clamping versatility. This clamping structure can be sequentially switched with the outer rim clamping structure, allowing for clamping point changes without disassembling the workpiece. This eliminates the need for manual secondary clamping, significantly reducing clamping errors and ensuring the hub maintains a stable posture throughout the inspection process, providing a stable foundation for high-precision flaw detection.

[0018] This invention provides independent flaw detection mechanisms for the inner wall of the wheel hub, the inner wall of the wheel rim, and the outer wall of the wheel hub, enabling zoned and specialized inspections and avoiding the problem of a single detection probe being unable to adapt to complex curved surfaces. Specifically, the connecting frame houses a seventh motor and supports the outer wall flaw detection adjustment component. The seventh motor drives the mounting block to rotate, flexibly adjusting the circumferential position of the inner wall flaw detection mechanism. The mounting block carries an eighth motor, which drives the fourth electric slide rail to rotate circumferentially, coordinating with the fourth electric slide rail to drive the fourth sliding plate to slide, completing the lateral adjustment of the flaw detection point. Then, a sixth electric telescopic rod pushes the second ultrasonic flaw detection sensor deeper into the wheel hub. Relying on the second U-plate, the second round rod, and the ninth motor to form an angle adjustment structure, the tilt angle of the second ultrasonic flaw detection sensor is finely adjusted, so that the sensor's detection surface fits the curved surface of the inner wall of the wheel hub, enabling accurate detection of hidden cracks, pores, and other internal defects on the inner wall of the wheel hub and the inner wall of the wheel rim. Meanwhile, a two-stage feeding method is adopted, with the seventh electric telescopic rod for vertical adjustment and the eighth electric telescopic rod for horizontal pushing, to deliver the third ultrasonic flaw detection sensor to the wheel hub outer wall inspection station. The third U-plate and the tenth motor work together to adjust the detection tilt angle, so that the third ultrasonic flaw detection sensor fits the arc structure of the wheel hub outer wall, completing the full-area scanning flaw detection of the wheel hub outer wall. Multiple sensors perform different tasks for detection, which is specifically adapted to the curved surface structure of different positions of the wheel hub, effectively eliminating blind spots and improving the comprehensiveness of defect identification.

[0019] This invention utilizes a multi-degree-of-freedom adjustment system formed by the coordinated operation of various motors, electric telescopic rods, and electric slide rails. Relying on the combined movements of motor rotation, slide rail sliding, and telescopic rod feeding, it achieves intelligent multi-angle adjustment of the flaw detection sensor's angle, distance, and orientation. This eliminates the need for manual adjustment of the detection position, resulting in a high degree of automation. The overall transmission structure is clearly hierarchical, with the rotating, telescopic, and sliding structures working together without interfering with each other. Active avoidance logic is incorporated during workstation switching, ensuring smooth mechanical movement without jamming or collision interference. Compared to traditional handheld flaw detection or single-fixed-point inspection equipment, this device relies on the linkage of mechanical structures to complete fully automatic alignment, clamping, and multi-angle flaw detection operations, reducing human error and minimizing manual intervention steps. This not only improves inspection efficiency but also significantly enhances the accuracy of wheel hub defect detection, meeting the needs of industrial-scale batch non-destructive testing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention from other angles;

[0022] Figure 3 This is a partial structural diagram of the present invention. Figure 1 ;

[0023] Figure 4 For the present invention Figure 3 Enlarged view of part A;

[0024] Figure 5 For the present invention Figure 3 Enlarged view of part B;

[0025] Figure 6 This is a partial structural diagram of the present invention. Figure 2 ;

[0026] Figure 7 This is a partial structural diagram of the present invention. Figure 3 .

[0027] In the diagram: 1. Base plate; 2. Support plate; 3. Rim fixing and detection assembly; 31. First support rod; 32. First motor; 33. First side plate; 34. First electric telescopic rod; 35. Fixing plate; 36. First groove; 37. First electric slide rail; 38. First sliding plate; 39. Fixing plate; 310. Second electric slide rail; 311. Second sliding plate; 312. Clamping plate; 313. Connecting rod; 314. Second motor; 315. Second electric telescopic rod; 316. First clamping plate; 317. Third electric telescopic rod; 318. Mounting frame; 319. Third motor; 320. Third electric slide rail; 321. Third sliding plate; 322. Fourth motor; 323. Fourth electric telescopic rod; 324. First U-plate; 325. First round rod; 326. Fifth motor; 327. First mounting rod; 328. First super... 4. Acoustic flaw detection sensor; 4. Hub fixing detection assembly; 41. Second support rod; 42. Sixth motor; 43. Second side plate; 44. Ninth electric telescopic rod; 45. Connecting plate; 46. Fifth electric telescopic rod; 47. Second clamping plate; 48. Connecting frame; 49. Seventh motor; 410. Mounting block; 411. Eighth motor; 412. Fourth electric slide rail; 413. Fourth sliding plate; 414. Sixth electric telescopic rod; 415. Second U-plate; 416. Second round rod; 417. Ninth motor; 418. Second mounting rod; 419. Second ultrasonic flaw detection sensor; 420. Seventh electric telescopic rod; 421. Guide plate; 422. Eighth electric telescopic rod; 423. Third U-plate; 424. Third round rod; 425. Tenth motor; 426. Third mounting rod; 427. Third ultrasonic flaw detection sensor. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] The following electrical components are all electrically connected to the external PLC controller.

[0030] Reference Figure 1 - Figure 7A detection device for detecting defects in automobile wheel hubs includes a base plate 1. Two support plates 2 are symmetrically fixedly connected to the bottom side wall of the base plate 1. A wheel rim fixing and detection assembly 3 is rotatably connected to the top side wall of the base plate 1 for fixing one side of the wheel rim and detecting defects on the surface of the wheel rim. A wheel hub fixing and detection assembly 4 is rotatably connected to the top side wall of the base plate 1 for fixing the inner wall of the wheel hub and detecting defects on the inner wall, outer wall and inner wall surface of the wheel rim.

[0031] In this embodiment, the rim fixing detection assembly 3 includes a first support rod 31 rotatably connected to the top side wall of the base plate 1, a first motor 32 fixedly connected to the bottom side wall of the base plate 1, the output end of the first motor 32 passing through the side wall of the base plate 1 and fixedly connected to one end of the first support rod 31, a first side plate 33 fixedly connected to one end of the first support rod 31, a first electric telescopic rod 34 fixedly connected to the side wall of the first side plate 33, and a fixed plate 35 fixedly connected to the telescopic end of the first electric telescopic rod 34.

[0032] The side wall of the fixed plate 35 is provided with a first groove 36. The inner wall of the first groove 36 is fixedly connected to a first electric slide rail 37. The side wall of the first electric slide rail 37 is slidably connected to a plurality of first slide plates 38. The side wall of each first slide plate 38 is fixedly connected to a fixed plate 39. The inner wall of each fixed plate 39 is fixedly connected to a second electric slide rail 310. The side wall of the second electric slide rail 310 is slidably connected to a second slide plate 311. The side wall of the second slide plate 311 is fixedly connected to a clamping plate 312.

[0033] The inner wall of the card plate 312 is rotatably connected to two connecting rods 313. The side wall of the card plate 312 is fixedly connected to two second motors 314. The output end of the second motor 314 passes through the side wall of the card plate 312 and is fixedly connected to one end of the corresponding connecting rod 313. The wall of the connecting rod 313 is fixedly connected to a second electric telescopic rod 315. The telescopic end of the second electric telescopic rod 315 is fixedly connected to a first clamping plate 316. The other side wall of the first side plate 33 is fixedly connected to a third electric telescopic rod 317.

[0034] The telescopic end of the third electric telescopic rod 317 is fixedly connected to the mounting frame 318. The inner wall of the mounting frame 318 is fixedly connected to the third motor 319. The side wall of the mounting frame 318 is rotatably connected to the third electric slide rail 320. The output end of the third motor 319 passes through the side wall of the mounting frame 318 and is fixedly connected to the side wall of the third electric slide rail 320. The side wall of the third electric slide rail 320 is slidably connected to the third slide plate 321. The inner wall of the third slide plate 321 is fixedly connected to the fourth motor 322. The output end of the fourth motor 322 is fixedly connected to the fourth electric telescopic rod 323.

[0035] The telescopic end of the fourth electric telescopic rod 323 is fixedly connected to the first U-plate 324. The inner wall of the first U-plate 324 is rotatably connected to the first round rod 325. The side wall of the first U-plate 324 is fixedly connected to the fifth motor 326. The output end of the fifth motor 326 passes through the side wall of the first U-plate 324 and is fixedly connected to one end of the first round rod 325. The rod wall of the first round rod 325 is fixedly connected to the first mounting rod 327. One end of the first mounting rod 327 is fixedly connected to the first ultrasonic flaw detection sensor 328.

[0036] Specifically, the base plate 1 serves as the overall mounting and bearing base, and the support plate 2 is used to raise and stabilize the base plate 1 to ensure the equipment is placed stably; the first support rod 31 is used to support the overall structure of the rim fixing and detection assembly 3, and the first motor 32 is used to drive the first support rod 31 to rotate, realizing the switching of the flaw detection mechanism's workstation; the first side plate 33 serves as an intermediate bearing component, used to assemble the clamping and flaw detection execution structure; the first electric telescopic rod 34 is used to push the fixed plate 35 to move horizontally, completing the insertion and alignment of the clamping plate 312; the fixed plate 35 is used to integrate and install the adjustment clamping component, and the first groove 36 provides installation and limiting space for the first electric slide rail 37; the first electric slide rail 37 drives the first sliding plate 38 to slide radially, realizing the coarse adjustment of the spacing of the clamping plate 312; the fixed plate 39 is used to fix the second electric slide rail 310, and the second electric slide rail 310 drives the second sliding plate 311 to slide, realizing the multi-dimensional fine adjustment of the clamping plate 312's position to adapt to different specifications of wheel hub openings; the clamping plate 312 is used to insert into the wheel hub opening to complete the pre-positioning; the connecting rod 313 serves as a rotation adjustment component, and the second electric... The first motor 314 drives the connecting rod 313 to deflect its angle, enabling adaptive angle adjustment of the clamping plate's posture. The second electric telescopic rod 315 pushes the first clamping plate 316 to press against the inner wall of the fixed rim opening, completing single-sided clamping and positioning. The third electric telescopic rod 317 pushes the mounting frame 318 closer to the rim inspection area. The mounting frame 318 carries the third motor 319, which drives the third electric slide rail 320 to deflect, adapting to the opening's tilt angle. The third electric slide rail 320 drives the third sliding plate 321 to slide, completing the switching of the flaw detection point. The fourth motor 322 adjusts the circumferential angle of the fourth electric telescopic rod 323, which precisely controls the flaw detection distance. The first U-plate 324 provides a rotation mounting point for the first round rod 325. The fifth motor 326 drives the first round rod 325 to rotate. The first mounting rod 327 mounts and fixes the first ultrasonic flaw detection sensor 328, which completes non-destructive defect detection on the outer surface of the rim and the inner wall of the opening.

[0037] In this embodiment, the hub fixing detection assembly 4 includes a second support rod 41 rotatably connected to the top side wall of the base plate 1, a sixth motor 42 fixedly connected to the bottom side wall of the base plate 1, the output end of the sixth motor 42 passing through the side wall of the base plate 1 and fixedly connected to one end of the second support rod 41, a second side plate 43 fixedly connected to one end of the second support rod 41, a ninth electric telescopic rod 44 fixedly connected to the side wall of the second side plate 43, a connecting plate 45 fixedly connected to the telescopic end of the ninth electric telescopic rod 44, a plurality of fifth electric telescopic rods 46 fixedly connected to the outer wall of the connecting plate 45, and a second clamping plate 47 fixedly connected to the telescopic end of each of the fifth electric telescopic rods 46.

[0038] A connecting frame 48 is fixedly connected to the other side wall of the second side plate 43. A seventh motor 49 is fixedly connected to the inner wall of the connecting frame 48. An mounting block 410 is rotatably connected to the side wall of the connecting frame 48. The output end of the seventh motor 49 passes through the side wall of the connecting frame 48 and is fixedly connected to the side wall of the mounting block 410. An eighth motor 411 is fixedly connected to the inner wall of the mounting block 410. A fourth electric slide rail 412 is fixedly connected to the output end of the eighth motor 411. A fourth sliding plate 413 is slidably connected to the side wall of the fourth electric slide rail 412. A sixth electric telescopic rod 414 is fixedly connected to the side wall of the fourth sliding plate 413.

[0039] The telescopic end of the sixth electric telescopic rod 414 is fixedly connected to the second U-plate 415. The inner wall of the second U-plate 415 is rotatably connected to the second round rod 416. The side wall of the second U-plate 415 is fixedly connected to the ninth motor 417. The output end of the ninth motor 417 passes through the side wall of the second U-plate 415 and is fixedly connected to one end of the second round rod 416. The rod wall of the second round rod 416 is fixedly connected to the second mounting rod 418. One end of the second mounting rod 418 is fixedly connected to the second ultrasonic flaw detection sensor 419.

[0040] A seventh electric telescopic rod 420 is fixedly connected to the bottom side wall of the connecting frame 48. A guide plate 421 is fixedly connected to the telescopic end of the seventh electric telescopic rod 420. An eighth electric telescopic rod 422 is fixedly connected to one end of the guide plate 421. A third U-plate 423 is fixedly connected to the telescopic end of the eighth electric telescopic rod 422. A third round rod 424 is rotatably connected to the inner wall of the third U-plate 423. A tenth motor 425 is fixedly connected to the side wall of the third U-plate 423. The output end of the tenth motor 425 passes through the side wall of the third U-plate 423 and is fixedly connected to one end of the third round rod 424. A third mounting rod 426 is fixedly connected to the rod wall of the third round rod 424. A third ultrasonic flaw detection sensor 427 is fixedly connected to one end of the third mounting rod 426.

[0041] Specifically, the second support rod 41 is used to support all the detection and clamping structures of the wheel hub fixing detection assembly 4; the sixth motor 42 is used to drive the second support rod 41 to rotate at a certain angle, realizing the switching of the mechanism's work position and avoiding the workpiece; the second side plate 43 is the supporting mounting base for the clamping mechanism and the flaw detection mechanism; the ninth electric telescopic rod 44 is used to push the connecting plate 45 into the inner cavity of the wheel hub; the connecting plate 45 is used to evenly distribute multiple sets of fifth electric telescopic rods 46, and the fifth electric telescopic rods 46 are used to push the second clamping plate 47 to realize the tightening and fixing of the inner wall of the wheel hub; the connecting frame 48 is used to install the seventh motor 49 inside, and at the same time supports the outer wall flaw detection adjustment component; the seventh motor 49 is used to drive the mounting block 410 to rotate and adjust the circumferential position of the inner wall flaw detection mechanism; the mounting block 410 is used to mount the eighth motor 411, and the eighth motor 411 is used to drive the fourth electric slide rail 412 to rotate circumferentially as a whole; the fourth electric slide rail 412 drives the fourth slide plate 413 to slide and adjust the lateral position of the flaw detection. The sixth electric telescopic rod 414 is used to push the second ultrasonic flaw detector 419 into the internal detection area of ​​the wheel hub; the second U-plate 415 provides a rotation fulcrum for the second round rod 416, and the ninth motor 417 is used to drive the second round rod 416 to deflect and adjust its angle; the second mounting rod 418 is used to fix the second ultrasonic flaw detector 419, which is responsible for flaw detection of defects on the inner wall of the wheel hub and the inner wall of the rim; the seventh electric telescopic rod 420 is used to vertically adjust the height of the guide plate 421, and the eighth electric telescopic rod 422 is used to horizontally push the third U-plate 423 to realize the position feed of the outer wall flaw detection mechanism; the third U-plate 423 provides a rotation structure for the third round rod 424, and the tenth motor 425 is used to adjust the detection tilt angle of the third ultrasonic flaw detector 427; the third mounting rod 426 is used to fix the third ultrasonic flaw detector 427, which is used to complete the full-area non-destructive flaw scanning detection of the outer surface of the wheel hub.

[0042] The operating principle of the present invention is now described as follows:

[0043] First, the first electric slide rail 37 is activated, which drives the first slide plate 38 to complete the radial position adjustment. Simultaneously, the second electric slide rail 310 is activated to drive the second slide plate 311 to slide, thereby adjusting the spatial position of multiple sets of clamping plates 312 so that the clamping plates 312 match the preset opening positions of the wheel rim on one side of the wheel hub to be inspected, completing the pre-alignment calibration. The wheel hub to be inspected is then manually placed on the upper side of the base plate 1 at the inspection station, keeping the wheel hub suspended without rigid support or pressure, so that the center axis of the wheel hub coincides with the telescopic center axis of the first electric telescopic rod 34, completing the pre-positioning of the workpiece.

[0044] After the workpiece is positioned, the first electric telescopic rod 34 is activated, which pushes the fixed plate 35 to move towards the side of the wheel hub, so that multiple sets of clamping plates 312 are inserted into the openings in the wheel rim one by one, completing the pre-insertion positioning of the clamping plates 312. Then, the second motor 314 is activated, which drives the connecting rod 313 to complete the angle deflection, and simultaneously drives the second electric telescopic rod 315 and the first clamping plate 316 to adjust their posture, so that the first clamping plate 316 fits the tilt angle of the inner wall of the wheel rim opening, completing the adaptive angle adaptation. After the angle adjustment is completed, the second motor 314 is turned off, and the second electric telescopic rod 315 is activated. The second electric telescopic rod 315 pushes the first clamping plate 316 to press against the inner wall of the wheel rim opening. Multiple sets of first clamping plates 316 work together to complete the single-sided clamping and fixing of the wheel hub. The double-layer slide rail is used to adjust and adapt to wheel hubs with different opening spacing and different opening sizes, improving the versatility of the tooling.

[0045] After the rim is clamped and fixed, the sixth motor 42 is started. The sixth motor 42 drives the second support rod 41 to rotate 180° at a fixed angle and then locks it, so that the flaw detection execution structure of the wheel hub fixing detection component 4 faces the wheel hub body, realizing the switching of the mechanism position and avoiding the fixed wheel hub throughout the process, thus preventing mechanical scratches. Then, the sixth electric telescopic rod 414 is started. The sixth electric telescopic rod 414 pushes the second U plate 415 to move, and delivers the second ultrasonic flaw detection sensor 419 to the detection area inside the wheel hub. The ninth motor 417 is started. The ninth motor 417 drives the second round rod 416 to rotate, which drives the second mounting rod 418 to complete the angle deflection, and adjusts the detection end face angle of the second ultrasonic flaw detection sensor 419 so that the detection surface of the second ultrasonic flaw detection sensor 419 fits the inner wall curved surface of the wheel hub, which meets the requirements of non-destructive testing.

[0046] After angle calibration, the fourth electric slide rail 412 is activated, driving the fourth slide plate 413 to slide and precisely control the detection distance between the second ultrasonic flaw detector 419 and the inner wall of the wheel hub. Simultaneously, the eighth motor 411 is activated, driving the fourth electric slide rail 412 to rotate circumferentially. This, combined with the linear feed action of the sixth electric telescopic rod 414, enables the second ultrasonic flaw detector 419 to continuously scan the entire inner wall of the wheel hub, intelligently collecting data on hidden defects such as cracks, pores, and interlayers. After the inner wall inspection process is completed, the ninth motor 417 is activated again to reverse the detection orientation of the second ultrasonic flaw detector 419, aligning the detection end of the second ultrasonic flaw detector 419 with the inner end face of the wheel rim. The multi-degree-of-freedom adjustment capability of the eighth motor 411 and the fourth electric slide rail 412 is reused to complete the full-coverage flaw detection of the inner end face of the wheel rim.

[0047] After the inner side inspection of the wheel hub is completed, the second ultrasonic flaw detection sensor 419 is reset to a safe avoidance position to prevent component collision during the outer wall inspection. The seventh electric telescopic rod 420 and the eighth electric telescopic rod 422 are activated in sequence. Through the coordinated adjustment of the two-stage telescopic mechanism, the third U-plate 423 and the third ultrasonic flaw detection sensor 427 are transported to the lower end inspection station of the outer wall of the wheel hub. The tenth motor 425 is activated, which drives the third round rod 424 to rotate, completing the adaptive adjustment of the detection angle of the third ultrasonic flaw detection sensor 427 to fit the arc structure of the outer wall of the wheel hub. Then, the seventh motor 49 is activated, which drives the mounting block 410 to rotate, causing the third ultrasonic flaw detection sensor 427 to rotate circumferentially along the outer wall of the wheel hub. With the lateral feed and sliding of the eighth electric telescopic rod 422, intelligent scanning flaw detection without dead angles is achieved on the outer surface of the outer wall of the wheel hub, accurately identifying defects such as wear, cracks, and shrinkage.

[0048] After the outer wall of the wheel hub is inspected, the third ultrasonic flaw detection sensor 427 resets and avoids collision, the sixth motor 42 is restarted, and the second support rod 41 is rotated in the opposite direction to complete the work position switch, so that the ninth electric telescopic rod 44 faces the inner cavity of the wheel hub. The ninth electric telescopic rod 44 is activated to push the connecting plate 45 into the inside of the wheel hub, and multiple sets of fifth electric telescopic rods 46 are activated. The fifth electric telescopic rods 46 push the second clamping plate 47, and the multiple sets of second clamping plates 47 are used to complete the expansion and fixation from the inner wall of the wheel hub, forming an inner wall clamping and positioning structure. After the clamping is stable, the first clamping plate 316 on the rim side is controlled to release the pressure and reset, releasing the clamping point on the outer side of the rim, providing movement space for flaw detection on the outer side of the rim, realizing the timing switch of the dual clamping mode, and there is no mechanical interference throughout the process.

[0049] After the inner wall of the wheel hub is tightened and fixed, the first motor 32 is started, which drives the first support rod 31 to rotate, turning the flaw detection mechanism of the wheel rim fixing detection assembly 3 to the outer detection position of the wheel rim; the third electric telescopic rod 317 is started, pushing the mounting frame 318 closer to the outer area of ​​the wheel rim; the third motor 319 is started, which drives the third electric slide rail 320 to deflect, so that the sliding direction of the third electric slide rail 320 matches the tilt angle of the wheel rim opening; the fifth motor 326 is started, which drives the first round rod 325 to rotate, adjusting the detection tilt angle of the first mounting rod 327 and the first ultrasonic flaw detection sensor 328, so that the detection end face of the first ultrasonic flaw detection sensor 328 is completely in contact with the tilt angle of the inner wall of the opening, meeting the flaw detection acquisition standard for irregular curved surfaces;

[0050] After angle calibration, the fourth electric telescopic rod 323 is activated to precisely control the detection distance of the first ultrasonic flaw detection sensor 328, so that the detection end of the first ultrasonic flaw detection sensor 328 is in contact with the inner wall of the rim opening; relying on the third electric slide rail 320 to drive the third slide plate 321 to slide, the single-hole single-side inner wall defect detection is completed. After the single hole detection is completed, the first ultrasonic flaw detection sensor 328 retracts to avoid the obstruction, and the third motor 319 drives the station switch to complete the single-side inner wall flaw detection of all the openings of the rim in sequence; after the same-direction opening detection is completed, the detection orientation of the first ultrasonic flaw detection sensor 328 is readjusted to perform full coverage detection of the other side inner wall of the opening;

[0051] After all the inspection procedures for the inner wall of the rim opening are completed, the first ultrasonic flaw detection sensor 328 is adjusted to switch the detection orientation so that its detection end is aligned with the outer surface of the rim. The multi-degree-of-freedom adjustment capabilities of the third motor 319 and the third electric slide rail 320 are reused to complete the intelligent non-destructive testing of the entire outer wall of the rim.

[0052] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A detection device for detecting defects in automobile wheel hubs, comprising a base plate (1), characterized in that, The bottom sidewall of the base plate (1) is symmetrically fixed with two support plates (2). The top sidewall of the base plate (1) is rotatably connected with a rim fixing and detection assembly (3) for fixing the rim on one side of the hub and detecting defects on the rim surface. The top sidewall of the base plate (1) is rotatably connected with a hub fixing and detection assembly (4) for fixing the inner wall of the hub and detecting defects on the inner wall, outer wall and inner wall surface of the rim.

2. The detection device for detecting defects in automobile wheel hubs according to claim 1, characterized in that, The rim fixing detection assembly (3) includes a first support rod (31) rotatably connected to the top side wall of the base plate (1), a first motor (32) fixedly connected to the bottom side wall of the base plate (1), the output end of the first motor (32) passing through the side wall of the base plate (1) and fixedly connected to one end of the first support rod (31), a first side plate (33) fixedly connected to one end of the first support rod (31), a first electric telescopic rod (34) fixedly connected to the side wall of the first side plate (33), and a fixed plate (35) fixedly connected to the telescopic end of the first electric telescopic rod (34).

3. The detection device for detecting defects in automobile wheel hubs according to claim 2, characterized in that, The side wall of the fixed plate (35) is provided with a first groove (36), the inner wall of the first groove (36) is fixedly connected to a first electric slide rail (37), the side wall of the first electric slide rail (37) is slidably connected to a plurality of first slide plates (38), the side wall of each of the first slide plates (38) is fixedly connected to a fixed plate (39), the inner wall of each of the fixed plates (39) is fixedly connected to a second electric slide rail (310), the side wall of the second electric slide rail (310) is slidably connected to a second slide plate (311), and the side wall of the second slide plate (311) is fixedly connected to a clamping plate (312).

4. The detection device for detecting defects in automobile wheel hubs according to claim 3, characterized in that, The inner wall of the card plate (312) is rotatably connected to two connecting rods (313), and the side wall of the card plate (312) is fixedly connected to two second motors (314). The output end of the second motor (314) passes through the side wall of the card plate (312) and is fixedly connected to one end of the corresponding connecting rod (313). The wall of the connecting rod (313) is fixedly connected to a second electric telescopic rod (315). The telescopic end of the second electric telescopic rod (315) is fixedly connected to a first clamping plate (316). The other side wall of the first side plate (33) is fixedly connected to a third electric telescopic rod (317).

5. The detection device for detecting defects in automobile wheel hubs according to claim 4, characterized in that, The telescopic end of the third electric telescopic rod (317) is fixedly connected to a mounting frame (318). The inner wall of the mounting frame (318) is fixedly connected to a third motor (319). The side wall of the mounting frame (318) is rotatably connected to a third electric slide rail (320). The output end of the third motor (319) passes through the side wall of the mounting frame (318) and is fixedly connected to the side wall of the third electric slide rail (320). The side wall of the third electric slide rail (320) is slidably connected to a third sliding plate (321). The inner wall of the third sliding plate (321) is fixedly connected to a fourth motor (322). The output end of the fourth motor (322) is fixedly connected to a fourth electric telescopic rod (323).

6. The detection device for detecting defects in automobile wheel hubs according to claim 5, characterized in that, The telescopic end of the fourth electric telescopic rod (323) is fixedly connected to a first U-plate (324). The inner wall of the first U-plate (324) is rotatably connected to a first round rod (325). The side wall of the first U-plate (324) is fixedly connected to a fifth motor (326). The output end of the fifth motor (326) passes through the side wall of the first U-plate (324) and is fixedly connected to one end of the first round rod (325). The rod wall of the first round rod (325) is fixedly connected to a first mounting rod (327). One end of the first mounting rod (327) is fixedly connected to a first ultrasonic flaw detection sensor (328).

7. The detection device for detecting defects in automobile wheel hubs according to claim 1, characterized in that, The hub fixing detection assembly (4) includes a second support rod (41) rotatably connected to the top side wall of the base plate (1). A sixth motor (42) is fixedly connected to the bottom side wall of the base plate (1). The output end of the sixth motor (42) passes through the side wall of the base plate (1) and is fixedly connected to one end of the second support rod (41). A second side plate (43) is fixedly connected to one end of the second support rod (41). A ninth electric telescopic rod (44) is fixedly connected to the side wall of the second side plate (43). A connecting plate (45) is fixedly connected to the telescopic end of the ninth electric telescopic rod (44). A plurality of fifth electric telescopic rods (46) are fixedly connected to the outer wall of the connecting plate (45). A second clamping plate (47) is fixedly connected to the telescopic end of each of the fifth electric telescopic rods (46).

8. The detection device for detecting defects in automobile wheel hubs according to claim 7, characterized in that, A connecting frame (48) is fixedly connected to the other side wall of the second side plate (43). A seventh motor (49) is fixedly connected to the inner wall of the connecting frame (48). An installation block (410) is rotatably connected to the side wall of the connecting frame (48). The output end of the seventh motor (49) passes through the side wall of the connecting frame (48) and is fixedly connected to the side wall of the installation block (410). An eighth motor (411) is fixedly connected to the inner wall of the installation block (410). A fourth electric slide rail (412) is fixedly connected to the output end of the eighth motor (411). A fourth sliding plate (413) is slidably connected to the side wall of the fourth electric slide rail (412). A sixth electric telescopic rod (414) is fixedly connected to the side wall of the fourth sliding plate (413).

9. A detection device for detecting defects in automobile wheel hubs according to claim 8, characterized in that, The telescopic end of the sixth electric telescopic rod (414) is fixedly connected to a second U-plate (415). The inner wall of the second U-plate (415) is rotatably connected to a second round rod (416). The side wall of the second U-plate (415) is fixedly connected to a ninth motor (417). The output end of the ninth motor (417) passes through the side wall of the second U-plate (415) and is fixedly connected to one end of the second round rod (416). The rod wall of the second round rod (416) is fixedly connected to a second mounting rod (418). One end of the second mounting rod (418) is fixedly connected to a second ultrasonic flaw detection sensor (419).

10. A detection device for detecting defects in automobile wheel hubs according to claim 9, characterized in that, The bottom side wall of the connecting frame (48) is fixedly connected to a seventh electric telescopic rod (420). The telescopic end of the seventh electric telescopic rod (420) is fixedly connected to a guide plate (421). One end of the guide plate (421) is fixedly connected to an eighth electric telescopic rod (422). The telescopic end of the eighth electric telescopic rod (422) is fixedly connected to a third U-plate (423). The inner wall of the third U-plate (423) is rotatably connected to a third round rod (424). The side wall of the third U-plate (423) is fixedly connected to a tenth motor (425). The output end of the tenth motor (425) passes through the side wall of the third U-plate (423) and is fixedly connected to one end of the third round rod (424). The rod wall of the third round rod (424) is fixedly connected to a third mounting rod (426). One end of the third mounting rod (426) is fixedly connected to a third ultrasonic flaw detection sensor (427).

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