Automobile wheel hub intelligent detection equipment

Abstract

The application discloses an intelligent detection equipment for automobile wheel hub, which comprises a base for supporting the wheel hub, a U-shaped mounting rack for fixing a plurality of infrared distance sensors, a terminal module electrically connected to the infrared distance sensors, a ring shaft structure for driving the infrared distance sensors to detect the depth of the wheel hub, a center shaft fixedly rotating on the base, a plurality of arc-shaped pressing seats arranged in an annular array on the shaft seat and used for abutting against the inner circumferential surface of the wheel hub, and a diameter fixing assembly for driving the plurality of arc-shaped pressing seats to move synchronously and oppositely or away from each other. The ring shaft structure is arranged, the wheel hub is driven to rotate slowly, and a plurality of infrared distance sensors are arranged, so that the depth of the wheel hub can be detected comprehensively from different positions. The multi-directional measurement mode ensures that the depth of the wheel hub at different positions of the same axle is accurately evaluated, and the comprehensiveness and reliability of detection are remarkably improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hub detection, in particular to an intelligent automobile hub detection device. BACKGROUND

[0002] With the rapid development of the automobile industry, the automobile hub, as an important part connecting the wheel and the suspension system of the vehicle, directly affects the driving safety, maneuverability and overall service life of the vehicle. The structural integrity and accuracy of the hub are crucial to the stability and maneuverability of the vehicle. Damaged or deformed hubs may cause the vehicle to shake, deviate or even cause serious safety accidents during driving. Therefore, timely detection and repair of hub defects are of great significance to driving safety.

[0003] Chinese patent (publication number: CN117329985A), the scheme specifically includes a rack, a conveying module, a jacking module, a centering module and a visual detection module, the visual detection module includes at least two detectors, at least one of which is used for detecting the upper surface of the hub to be detected, and at least one of which is used for detecting the lower surface of the hub to be detected, and the detector is used for 2D detection or 3D detection of the hub to be detected. The present application adopts at least two detectors to simultaneously detect the upper and lower surfaces of the hub to be detected, has high detection efficiency, and the detection result is more accurate.

[0004] The hub detection device in the above-mentioned patent can simultaneously detect the upper and lower surfaces of the hub when measuring the depth of the hub. However, the hub may have a depth deviation on the same diameter line during production, that is, the depth of different positions of the hub may be different, and the existing detection device is difficult to realize multi-directional detection of different positions of the hub, thereby being difficult to comprehensively evaluate the depth index of the hub. Therefore, an intelligent automobile hub detection device is proposed. SUMMARY

[0005] The application aims to provide an intelligent automobile hub detection device, which has the advantages of being able to comprehensively detect the depth of the hub from different positions, and solves the problem of being difficult to realize multi-directional detection of different positions of the hub.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: an intelligent automobile hub detection device, comprising a base for supporting the hub and a U-shaped mounting rack provided thereon for fixing a plurality of infrared distance measuring sensors, the infrared distance measuring sensors being electrically connected with a terminal module, characterized in that: the base is provided with a ring shaft structure for driving the infrared distance measuring sensors to detect the depth of the hub.

[0007] The ring shaft structure comprises a central shaft fixedly rotated on a base, the central shaft comprises an integrally formed spline part, one end of the central shaft fixedly connected with a shaft seat towards the base, a plurality of groups of arc-shaped abutting seats arranged in an annular array and used for abutting against the inner circumferential surface of the hub are arranged on the shaft seat, and a diameter determining assembly for driving the plurality of groups of arc-shaped abutting seats to move synchronously towards or away from each other to determine the position of the center point of the hub is arranged on the base.

[0008] A rectangular through slot for slidingly connecting the U-shaped mounting frame in the horizontal direction is formed on the base, a plurality of infrared distance measuring sensors are fixedly connected to the opposite surfaces of the U-shaped mounting frame respectively, and a diameter moving assembly for driving the U-shaped mounting frame to reciprocate in the horizontal direction is arranged on the base.

[0009] A positioning seat is fixedly connected to the base, and a variable measuring assembly for driving the shaft seat to rotate to drive the hub to rotate horizontally is arranged on the positioning seat.

[0010] Preferably, the diameter determining assembly comprises a spline barrel slidingly sleeved on the spline part and freely rising and falling on the spline part, a group of shaft extension rods are fixedly connected to the plurality of groups of arc-shaped abutting seats respectively, and an axial slot for slidingly connecting the shaft extension rods is formed on the shaft seat.

[0011] The lower surface of the shaft extension rod is fixedly rotated with a connecting rod, and one end of the connecting rod away from the shaft extension rod is fixedly rotated on the spline barrel.

[0012] Preferably, a positioning barrel is sleeved on the central shaft, the positioning barrel is fixedly rotated on the positioning seat, an outer circumferential surface of the positioning barrel is fixedly sleeved with a worm, and the worm is meshingly connected with a worm wheel.

[0013] A side position seat is fixedly connected to the base, a fork-shaped rod is arranged on the side position seat, a swing rod is fixedly rotated at the middle part of the fork-shaped rod, one end of the swing rod away from the fork-shaped rod is fixedly rotated on the worm wheel, and the worm wheel and the fork-shaped rod are both fixedly rotated on the side position seat.

[0014] A homologous ring is fixedly rotated on the spline barrel, an axial block is fixedly connected to the outer circumferential surface of the homologous ring, a homologous pin is fixedly connected to one side surface of the fork-shaped rod towards the axial block, and a homologous slot for slidingly connecting the homologous pin is formed on the axial block.

[0015] Preferably, a sector gear freely rotated in the horizontal direction driven by a motor is arranged on the side position seat, the sector gear is fixedly rotated on the positioning seat, the sector gear is meshingly connected with a same-direction gear, the same-direction gear is fixedly sleeved on the positioning barrel, an incomplete limiting ring is fixedly connected to the sector gear, a plurality of groups of arc-shaped limiting seats are fixedly connected to the same-direction gear, and the outer arc surface of the arc-shaped limiting seat and the outer circumferential surface of the incomplete limiting ring are in sliding contact.

[0016] Preferably, the variable measurement assembly includes a transverse hollow cylinder fixedly connected to the base, the transverse hollow cylinder is provided with a concentric column that slides freely in the horizontal direction and rotates freely at the end of the movement, the concentric column slides through the transverse hollow cylinder, and a spline shaft is coaxially fixed on the concentric column;

[0017] A clamping plate is fixedly connected to the positioning seat, and a circular hole is opened on the clamping plate for the spline shaft to pass through. A driven bevel gear is slidingly sleeved on the spline shaft. The driven bevel gear rotates on the clamping plate on a fixed axis, and the driven bevel gear is meshed and connected with the driving bevel gear. The driving bevel gear is coaxially fixed with the center shaft.

[0018] Preferably, the radial motion assembly includes a bottom gear that rotates freely in the horizontal direction and is transmission-connected to the sector gear, the bottom gear rotates on a fixed axis on a transverse hollow cylinder, the bottom gear is meshedly connected with a rack, and a transverse sliding groove is provided on the transverse hollow cylinder to which the rack is slidably connected;

[0019] A relief pin is fixedly connected to the side of the rack facing the concentric column, and a groove body 1 for the relief pin to slide through is opened on the horizontal hollow cylinder, and a spiral groove for the relief pin to slide through is opened on the concentric column;

[0020] The concentric columns rotate on a fixed axis on the U-shaped mounting frame.

[0021] Preferably, the concentric columns are fixedly connected with side protrusions, the transverse hollow cylinder is provided with two groups of annular grooves for sliding connection of the side protrusions, and the transverse hollow cylinder is also provided with an inward positioning groove for sliding connection of the side protrusions, and the two ends of the inward positioning groove are respectively connected to a group of annular grooves.

[0022] Preferably, when the rack is at the end position of the stroke, the position of the side protrusion does not correspond to the inward positioning groove.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention provides a ring shaft structure, drives the wheel hub to rotate slowly, and is equipped with multiple sets of infrared ranging sensors to perform comprehensive depth detection of the wheel hub from different positions. This multi-directional measurement method ensures that the depth of the wheel hub at different positions with the same wheelbase is accurately assessed, significantly improving the comprehensiveness and reliability of the detection.

[0025] 2. The present invention can automatically correct the position of the wheel hub by providing a sizing component so that the wheel hub and the center axis maintain the same central axis. This automated correction mechanism eliminates the measurement error caused by inaccurate initial placement of the wheel hub and improves the stability and reliability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 The component schematic view of the U-shaped mounting frame of the present application;

[0028] Figure 3 The component schematic view of the shaft shooting seat of the present application;

[0029] Figure 4 The component schematic view of the shaft shooting seat of the present application; Figure 3 The enlarged view of A in the present application;

[0030] Figure 5 The component schematic view of the swing rod of the present application;

[0031] Figure 6 The component schematic view of the transverse hollow cylinder of the present application;

[0032] Figure 7 The component schematic view of the transverse hollow cylinder of the present application; Figure 6 The enlarged view of B in the present application;

[0033] Figure 8 The component schematic view of the concentric column of the present application;

[0034] Figure 9 The component schematic view of the side protruding block of the present application.

[0035] In the figure: 1, base; 2, U-shaped mounting frame; 3, infrared distance measuring sensor; 4, center shaft; 401, spline part; 5, positioning cylinder; 6, worm; 7, worm wheel; 8, swing rod; 9, fork-shaped rod; 10, side position seat; 11, positioning seat; 12, spline cylinder; 13, same position ring; 14, axial block; 15, same position pin; 16, same position groove; 17, connecting rod; 18, shaft shooting seat; 19, shaft extension rod; 20, axial groove; 21, arc-shaped pressing seat; 22, same direction gear; 23, arc-shaped limiting seat; 24, sector gear; 25, incomplete limiting ring; 26, driving bevel gear; 27, driven bevel gear; 28, spline shaft; 29, bottom direction gear; 30, rack; 31, transverse hollow cylinder; 32, transverse sliding groove; 33, concentric column; 34, let go pin; 35, spiral groove; 36, side protruding block; 37, annular groove; 38, inward positioning groove; 39, rectangular through groove. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying 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.

[0037] Please refer to Figures 1 to 9The application provides a technical scheme: an intelligent automobile wheel hub detection equipment, comprising a base 1 for supporting a wheel hub and a U-shaped mounting rack 2 provided on the base 1 and used for fixing a plurality of infrared distance sensors 3, the infrared distance sensors 3 are electrically connected with terminal modules, and a ring shaft structure for driving the infrared distance sensors 3 to detect the depth of the wheel hub is arranged on the base 1.

[0038] The ring shaft structure comprises a central shaft 4 fixedly arranged on the base 1 and rotating, the central shaft 4 comprises an integral spline part 401, one end of the central shaft 4 fixedly connected with a shaft seat 18 is arranged on the base 1, a plurality of arc-shaped pressing seats 21 arranged in an annular array and used for abutting against the inner circumferential surface of the wheel hub are arranged on the shaft seat 18, and a diameter determining assembly for driving the plurality of arc-shaped pressing seats 21 to move synchronously towards or away from each other to determine the position of the center point of the wheel hub is arranged on the base 1.

[0039] A rectangular through slot 39 for slidingly connecting the U-shaped mounting rack 2 in the horizontal direction is arranged on the base 1, the plurality of infrared distance sensors 3 are fixedly connected to the opposite surfaces of the U-shaped mounting rack 2 respectively, and a diameter moving assembly for driving the U-shaped mounting rack 2 to move reciprocally in the horizontal direction is arranged on the base 1.

[0040] The base 1 is fixedly connected with a positioning seat 11, and a variable measurement assembly for driving the shaft seat 18 to rotate to drive the wheel hub to rotate horizontally is arranged on the positioning seat 11.

[0041] As shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 6 , when the depth of the wheel hub is detected, the wheel hub is placed on the base 1, the spacing between the plurality of arc-shaped pressing seats 21 is smallest in the initial state, the plurality of arc-shaped pressing seats 21 are arranged at the inner circle of the wheel hub when the wheel hub is placed, the plurality of arc-shaped pressing seats 21 are driven to move synchronously away from each other in the horizontal direction by the diameter determining assembly when the wheel hub is detected, so as to increase the distance between the plurality of arc-shaped pressing seats 21, the arc-shaped pressing seats 21 are pressed and abutted against the inner circumferential surface of the wheel hub, meanwhile, the position of the wheel hub can be corrected when the plurality of arc-shaped pressing seats 21 move away from each other, and the wheel hub and the central shaft 4 are arranged on the same central axis when the plurality of arc-shaped pressing seats 21 are all pressed and contacted with the inner circumferential surface of the wheel hub, so as to determine the detection position of the wheel hub.

[0042] Meanwhile, in the initial state, the two groups of infrared distance sensors 3 arranged on the U-shaped mounting frame 2 are located on one side of the central axis 4, and under the action of the radial assembly, the horizontal position of the two groups of infrared distance sensors 3 can be changed by driving the U-shaped mounting frame 2 to move horizontally. The multiple groups of infrared distance sensors 3 can move along the opening direction of the rectangular through slot 39, and the infrared distance sensor 3 located below can detect the hub through the rectangular through slot 39. The multiple groups of infrared distance sensors 3 are arranged on the opposite surfaces of the U-shaped mounting frame 2, and the light source emission and receiving directions of the multiple groups of infrared distance sensors 3 are both directed to the base 1. The spacing of the multiple groups of infrared distance sensors 3 arranged oppositely on the U-shaped mounting frame 2 is fixed. Therefore, by the radial assembly, the multiple groups of infrared distance sensors 3 can move along the radial direction of the hub, and then the different positions on the same radial line of the hub can be measured.

[0043] Meanwhile, when the multiple groups of infrared distance sensors 3 are at the horizontal stroke terminal, they correspond to the edge position of the hub. When the depth of the hub is measured, since the spacing of the oppositely arranged multiple groups of infrared distance sensors 3 is a fixed value, the fixed value is subtracted from the distance data measured by the oppositely arranged two groups of infrared distance sensors 3 to calculate the depth value of the hub.

[0044] Furthermore, by the variable measurement assembly, the central axis 4 and the shaft seat 18 can be driven to rotate to drive the multiple groups of arc-shaped pressing seats 21 to rotate synchronously. Since the arc-shaped pressing seats 21 are in extrusion contact with the inner circumferential surface of the hub, and the contact surface friction between the arc-shaped pressing seats 21 and the hub is large, when the U-shaped mounting frame 2 and the shaft seat 18 rotate, the hub can be slowly rotated in the horizontal direction to realize the detection of different positions at the same radial distance of the hub to measure whether the hub has a depth deviation phenomenon, thereby avoiding the measurement deviation caused by the measurement of a single position. The multi-angle and multi-position measurement can comprehensively evaluate the depth consistency of the hub and timely find the possible depth deviation of the hub at different positions, thereby ensuring the overall quality of the hub.

[0045] In a more preferred embodiment, the diameter setting assembly includes a spline sleeve 12 that is freely raised and lowered on the spline 401, and a group of shaft extension rods 19 are fixedly connected to the multiple groups of arc-shaped pressing seats 21, respectively. The shaft seat 18 is provided with an axial groove 20 for sliding connection of the shaft extension rod 19.

[0046] The lower surface of the shaft extension rod 19 is pivotally connected with a connecting rod 17, and the end of the connecting rod 17 away from the shaft extension rod 19 is pivotally connected to the spline sleeve 12.

[0047] The center shaft 4 is sleeved with a positioning cylinder 5, the positioning cylinder 5 is rotationally fixed on a positioning base 11, the outer circumferential surface of the positioning cylinder 5 is fixedly sleeved with a worm 6, the worm 6 is meshingly connected with a worm wheel 7;

[0048] The base 1 is fixedly connected with a side seat 10, the side seat 10 is provided with a fork-shaped rod 9, the middle part of the fork-shaped rod 9 is rotationally fixed with a swing rod 8, one end of the swing rod 8 away from the fork-shaped rod 9 is rotationally fixed on the worm wheel 7, and the worm wheel 7 and the fork-shaped rod 9 are both rotationally fixed on the side seat 10;

[0049] The spline cylinder 12 is rotationally fixed with a same-position ring 13, the outer circumferential surface of the same-position ring 13 is fixedly connected with an axial block 14, one side of the fork-shaped rod 9 away from the axial block 14 is fixedly connected with a same-position pin 15, and the axial block 14 is provided with a same-position groove 16 for sliding connection of the same-position pin 15.

[0050] As shown in Figures 2-7 When the positioning cylinder 5 rotates in the horizontal direction, the worm 6 fixedly arranged thereon can be driven to rotate synchronously, the worm 6 is meshingly connected with the worm wheel 7, the worm wheel 7 can be driven to freely rotate in the vertical direction by the worm 6, the swing rod 8 between the worm wheel 7 and the fork-shaped rod 9 can be freely deflected, and the fork-shaped rod 9 can be driven to swing on the side seat 10 by the swing rod 8 when the worm wheel 7 rotates.

[0051] At the same time, the fork-shaped rod 9 is fixedly arranged at the same-position pin 15 which is slidingly connected on the axial block 14 through the same-position groove 16, the axial block 14 is fixedly connected with the same-position ring 13, the same-position ring 13 is rotationally fixed on the spline cylinder 12, and when the fork-shaped rod 9 swings in the vertical direction, the axial block 14, the same-position ring 13 and the spline cylinder 12 can be driven to move in the vertical direction by the same-position pin 15, the horizontal height of the spline cylinder 12 changes, the connecting rod 17 is deflected, the shaft extension rod 19 is driven to slide on the axial groove 20, and the arc-shaped abutting seat 21 fixedly arranged at the end of the shaft extension rod 19 is driven to move close to or away from the central axis of the center shaft 4 and the shaft seat 18.

[0052] When the hub is detected, a plurality of arc-shaped abutting seats 21 are driven to move away from each other, the position of the hub on the base 1 is corrected by the horizontal movement of the plurality of arc-shaped abutting seats 21, and when the plurality of arc-shaped abutting seats 21 are in extrusion contact with the inner circumferential surface of the hub, the hub and the center shaft 4 are on the same central axis, and the detection position of the hub is determined.

[0053] Further, the side seat 10 is provided with a sector gear 24 driven by a motor and freely rotating in the horizontal direction, the sector gear 24 is fixedly rotating on the positioning seat 11, the sector gear 24 is connected with the same direction gear 22 in meshing, the same direction gear 22 is fixedly sleeved on the positioning cylinder 5, the sector gear 24 is fixedly connected with an incomplete limiting ring 25, the same direction gear 22 is fixedly connected with a plurality of arc limiting seats 23, and the outer arc surface of the arc limiting seat 23 is in sliding contact with the outer circumferential surface of the incomplete limiting ring 25.

[0054] As shown in Figure 2 , Figure 5 and Figure 6 , the motor fixedly arranged on the positioning seat 11 drives the sector gear 24 to rotate in the horizontal direction, and then the same direction gear 22 is driven to rotate synchronously when the sector gear 24 meshes with the same direction gear 22, at the same time, the same direction gear 22 is fixedly sleeved on the positioning cylinder 5, and then the positioning cylinder 5 and the worm 6 are driven to rotate synchronously through the rotating process of the same direction gear 22, so as to drive the diameter determining assembly to operate, so as to determine the detection position of the hub or release the restriction on the hub after the detection is completed.

[0055] It should be noted that when the same direction gear 22 and the sector gear 24 are not in meshing state, at this time, the incomplete limiting ring 25 corresponds to the position of one of the arc limiting seats 23, and the incomplete limiting ring 25 is in sliding contact with the arc limiting seat 23, and then the incomplete limiting ring 25 can limit the rotation of the same direction gear 22, so as to avoid the rotation of the same direction gear 22 and the positioning cylinder 5 and other parts thereon under external force, and then ensure that the plurality of arc abutting seats 21 can stably position the hub.

[0056] On the basis of the diameter determining assembly embodiment, the variable measuring assembly comprises a transverse hollow cylinder 31 fixedly connected to the base 1, the transverse hollow cylinder 31 is provided with a concentric column 33 freely sliding in the horizontal direction and freely rotating at the end of movement, the concentric column 33 is slidingly penetrated on the transverse hollow cylinder 31, and the spline shaft 28 is fixedly arranged on the concentric column 33 in the same axis;

[0057] The positioning seat 11 is fixedly connected with a clamping plate, the clamping plate is provided with a circular hole for the spline shaft 28 to penetrate, the spline shaft 28 is slidingly sleeved with a driven bevel gear 27, the driven bevel gear 27 is fixedly rotating on the clamping plate, and the driven bevel gear 27 is connected with the driving bevel gear 26 in meshing, and the driving bevel gear 26 is fixedly arranged in the same axis with the central shaft 4.

[0058] As shown in Figure 2 , Figure 5 and Figure 6As shown, the base 1 is fixedly provided with a transverse hollow cylinder 31, and the transverse hollow cylinder 31 is provided with a coaxial concentric column 33 which can freely move in the horizontal direction and rotate at the terminal position of the horizontal stroke. When the horizontal position of the concentric column 33 changes, it can drive the spline shaft 28 fixedly arranged at the end to move synchronously, and the positioning seat 11 fixedly arranged on the clamping plate and the driven bevel gear 27 are axially rotated on the clamping plate. Therefore, when the spline shaft 28 follows the concentric column 33 to move horizontally, it slides on the driven bevel gear 27 without changing the horizontal position of the driven bevel gear 27, thereby enabling the driven bevel gear 27 to always be in meshing state with the driving bevel gear 26 and not to be separated due to the horizontal movement of the concentric column 33.

[0059] At the same time, when the concentric column 33 is at the terminal position of the horizontal stroke and rotates in the vertical direction, it can drive the driven bevel gear 27 slidingly sleeved thereon to rotate synchronously, thereby driving the driving bevel gear 26 meshing with the driven bevel gear 27 to rotate. The driving bevel gear 26 is coaxially fixed on the central shaft 4, so that the central shaft 4 can be driven to rotate synchronously through the rotation process of the spline shaft 28. The spline part 401 integrally formed on the central shaft 4 is slidingly sleeved with the spline part 401, thereby enabling the shaft shooting seat 18 and the plurality of shaft extension rods 19 and arc-shaped abutting seats 21 thereon to rotate synchronously through the spline part 401. The plurality of arc-shaped abutting seats 21 frictionally abut against the inner circumferential surface of the hub, thereby driving the hub to rotate in the horizontal direction to enable the infrared distance measuring sensor 3 to correspond to the hub at the same axial distance position, thereby enabling the hub to be detected from multiple positions, reducing the error caused by a single measurement point, and significantly improving the accuracy and reliability of the overall detection through multiple measurements and data averaging. The multiple and multi-angle measurement mode effectively reduces the influence of single measurement position deviation on the overall detection result, and ensures the comprehensiveness and consistency of the measurement data.

[0060] On the basis of the embodiment of the variable measurement assembly, the radial movement assembly comprises a bottom gear 29 which is freely rotatable in the horizontal direction and is in transmission connection with the sector gear 24. The bottom gear 29 is axially rotated on the transverse hollow cylinder 31, and the bottom gear 29 is in meshing connection with a rack 30. The transverse hollow cylinder 31 is provided with a transverse sliding groove 32 in sliding connection with the rack 30.

[0061] The rack 30 is fixedly connected with a clearance pin 34 on the side facing the concentric column 33, and the transverse hollow cylinder 31 is provided with a groove one for the clearance pin 34 to slidingly penetrate. The concentric column 33 is provided with a spiral groove 35 for the clearance pin 34 to slidingly connect.

[0062] The concentric column 33 is axially rotated on the U-shaped mounting bracket 2.

[0063] The lateral protruding block 36 is fixedly connected to the concentric column 33, two groups of annular grooves 37 are formed in the transverse hollow cylinder 31 for sliding connection of the lateral protruding block 36, and an inward positioning groove 38 is also formed in the transverse hollow cylinder 31 for sliding connection of the lateral protruding block 36, and two ends of the inward positioning groove 38 are communicated with one group of annular grooves 37.

[0064] When the rack 30 is at the end position of the stroke, the position of the lateral protruding block 36 does not correspond to the inward positioning groove 38.

[0065] As shown in Figure 6 , Figure 8 and Figure 9 When the sector gear 24 rotates, it can drive the bottom gear 29 connected therewith to rotate synchronously, thereby driving the rack 30 connected with the bottom gear 29 to move in the horizontal direction, wherein the clearance pin 34 fixedly arranged on the rack 30 is slidingly connected to the concentric column 33 through the helical groove 35, and in the initial state, the lateral protruding block 36 is located at the joint of the annular groove 37 and the lateral protruding block 36, at this time, when the rack 30 moves in the horizontal direction, since the concentric column 33 is not limited, the concentric column 33 will move synchronously with the rack 30 at this time, that is, the lateral protruding block 36 will slide at the inward positioning groove 38, thereby pushing the U-shaped mounting frame 2 to slide on the rectangular through groove 39, so as to change the horizontal position of the plurality of infrared distance measuring sensors 3.

[0066] Furthermore, with the horizontal movement of the rack 30 and the concentric column 33, the lateral protruding block 36 moves to the terminal position of the inward positioning groove 38, at this time, when the rack 30 continues to move, it cannot continue to move with the rack 30 due to the limitation of the annular groove 37, and at this time, the concentric column 33 is moved to the terminal position of the horizontal stroke.

[0067] At the same time, with the subsequent movement of the rack 30, the clearance pin 34 can slide on the helical groove 35, thereby driving the concentric column 33 to rotate in the vertical direction, so as to drive the plurality of arc-shaped abutting seats 21 to rotate the hub by driving the spline shaft 28 to rotate.

[0068] It needs to be explained that, in actual use process, the fan gear 24 and the bottom gear 29 synchronous rotation, and let the bit pin 34 in the initial rotation can be engaged with the same gear 22 and drive it to rotate, so that a plurality of groups of arc-shaped pressure seat 21 can determine the detection position of the wheel hub, but in the process, the rotation process of the bottom gear 29 can change the horizontal position of the U-shaped mounting frame 2 and the infrared distance sensor 3 through the concentric column 33, therefore, in the initial state, a plurality of groups of infrared distance sensor 3 close to the wheel hub of the central axis, in order to provide redundant displacement in the process of supporting the wheel hub by a plurality of groups of arc-shaped pressure seat 21, and after the arc-shaped pressure seat 21 determines the wheel hub detection center, the horizontal movement of a plurality of groups of infrared distance sensor 3 can realize the depth detection process of different positions on the same diameter line of the wheel hub.

[0069] At the same time, in actual use process, the shape structure of the control shaft seat 18 and the position of the shaft extension rod 19 and the arc-shaped pressure seat 21 need to be controlled to avoid the existence of the measurement process of the infrared distance sensor 3, so as to ensure the detection accuracy.

[0070] Among them, the side block 36 of the rack 30 in the end position of the stroke does not correspond to the inward positioning groove 38, therefore, when the rack 30 is reciprocated after moving to the end, since the side block 36 is in the annular groove 37, the side block 36 is limited by the annular groove 37, so that the concentric column 33 reverses first, and after rotating, the side block 36 corresponds to the inward positioning groove 38, and then it will restore to the initial position with the horizontal movement process of the rack 30.

[0071] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An intelligent detection device for automobile wheel hubs, comprising a base (1) for supporting the wheel hub and a U-shaped mounting frame (2) provided thereon for fixing a plurality of infrared ranging sensors (3), wherein the infrared ranging sensors (3) are electrically connected to a terminal module, characterized in that: The base (1) is provided with a ring shaft structure for driving an infrared distance measuring sensor (3) to detect the depth of the wheel hub; The ring shaft structure includes a central shaft (4) that rotates on a fixed axis on a base (1), the central shaft (4) includes an integrally formed spline portion (401), and one end of the central shaft (4) facing the base (1) is fixedly connected to an axis-receiving seat (18), and the axis-receiving seat (18) is provided with a plurality of groups of arc-shaped pressing seats (21) arranged in an annular array and used to press against the inner peripheral surface of the hub, and the base (1) is provided with a sizing component that drives the plurality of groups of arc-shaped pressing seats (21) to move synchronously toward or away from each other to determine the position of the hub detection center point; The base (1) is provided with a rectangular through slot (39) for the U-shaped mounting frame (2) to be slidably connected in the horizontal direction, a plurality of groups of infrared distance measuring sensors (3) are respectively fixedly connected to opposite surfaces of the U-shaped mounting frame (2), and the base (1) is provided with a radial motion component for driving the U-shaped mounting frame (2) to reciprocate in the horizontal direction; A positioning seat (11) is fixedly connected to the base (1), and a variable measurement component is provided on the positioning seat (11) for driving the axis-projection seat (18) to rotate so as to drive the wheel hub to rotate horizontally; The sizing assembly comprises a spline cylinder (12) which is slidably sleeved on the spline portion (401) and can be freely raised and lowered on the spline portion (401); a plurality of arc-shaped pressing seats (21) are respectively fixedly connected to a group of shaft extension rods (19); and an axial groove (20) is provided on the shaft extension seat (18) for sliding connection of the shaft extension rods (19); A connecting rod (17) is provided on the lower surface of the shaft extension rod (19) for fixed axis rotation, and one end of the connecting rod (17) away from the shaft extension rod (19) is fixed axis rotation on the spline cylinder (12); The central shaft (4) is provided with a positioning cylinder (5), the positioning cylinder (5) is fixedly rotated on the positioning seat (11), the outer peripheral surface of the positioning cylinder (5) is fixedly provided with a worm (6), and the worm (6) is meshedly connected with a worm wheel (7); The base (1) is fixedly connected to a side seat (10), a fork-shaped rod (9) is provided on the side seat (10), a swing rod (8) is fixedly rotated in the middle of the fork-shaped rod (9), an end of the swing rod (8) away from the fork-shaped rod (9) is fixedly rotated on the worm wheel (7), and the worm wheel (7) and the fork-shaped rod (9) are both fixedly rotated on the side seat (10); The spline cylinder (12) is provided with a fixed-axis rotating aligning ring (13), the outer peripheral surface of which is fixedly connected to an axial block (14), a aligning pin (15) is fixedly connected to a side of the fork-shaped rod (9) facing the axial block (14), and the axial block (14) is provided with an aligning groove (16) for sliding connection of the aligning pin (15); The side seat (10) is provided with a fan-shaped gear (24) driven by a motor and freely rotating in the horizontal direction. The fan-shaped gear (24) is fixedly rotated on the positioning seat (11). The fan-shaped gear (24) is meshed with a same-direction gear (22). The same-direction gear (22) is fixedly sleeved on the positioning cylinder (5). An incomplete limiting ring (25) is fixedly connected to the fan-shaped gear (24). A plurality of groups of arc-shaped limiting seats (23) are fixedly connected to the same-direction gear (22). The outer arc surface of the arc-shaped limiting seat (23) is in sliding contact with the outer peripheral surface of the incomplete limiting ring (25). The variable measurement assembly includes a transverse hollow cylinder (31) fixedly connected to the base (1), and a concentric column (33) is provided on the transverse hollow cylinder (31) and is free to slide in the horizontal direction and rotate freely at the end of the movement. The concentric column (33) slides through the transverse hollow cylinder (31), and a spline shaft (28) is coaxially fixed on the concentric column (33); A clamping plate is fixedly connected to the positioning seat (11), and a circular hole for a spline shaft (28) to pass through is opened on the clamping plate. A driven bevel gear (27) is slidingly sleeved on the spline shaft (28). The driven bevel gear (27) rotates on the clamping plate with a fixed axis, and the driven bevel gear (27) is meshed with a driving bevel gear (26). The driving bevel gear (26) is coaxially fixed with the center shaft (4).

2. The intelligent automobile wheel hub detection device according to claim 1, characterized in that: The radial motion assembly comprises a bottom gear (29) that is freely rotatable in the horizontal direction and is transmission-connected to the sector gear (24).

3. The intelligent automobile wheel hub detection device according to claim 2, characterized in that: The bottom gear (29) is fixedly rotated on the transverse hollow cylinder (31), the bottom gear (29) is meshedly connected with a rack (30), and a transverse sliding groove (32) is provided on the transverse hollow cylinder (31) to which the rack (30) is slidably connected.

4. The intelligent automobile wheel hub detection device according to claim 3, characterized in that: A relief pin (34) is fixedly connected to the side of the rack (30) facing the concentric column (33), and a groove body for the relief pin (34) to slide through is provided on the transverse hollow cylinder (31), and a spiral groove (35) for the relief pin (34) to slide and connect is provided on the concentric column (33); The concentric column (33) rotates on a fixed axis on the U-shaped mounting frame (2).

5. The intelligent automobile wheel hub detection device according to claim 4, characterized in that: The concentric column (33) is fixedly connected to a side protrusion (36), and the transverse hollow cylinder (31) is provided with two groups of annular grooves (37) for sliding connection of the side protrusion (36). The transverse hollow cylinder (31) is also provided with an inward positioning groove (38) for sliding connection of the side protrusion (36), and both ends of the inward positioning groove (38) are respectively communicated with a group of annular grooves (37).

6. The intelligent automobile wheel hub detection device according to claim 5, characterized in that: When the rack (30) is at the end position of the stroke, the position of the side protrusion (36) does not correspond to the inward positioning groove (38).

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