Intelligent detection equipment for automobile hub

Abstract

An automobile hub intelligent detection device disclosed by the present invention comprises a base station used for supporting a hub and a U-shaped installation frame arranged on the base station and used for fixing a plurality of groups of infrared distance measurement sensors, the infrared distance measurement sensors are electrically connected with a terminal module, and the base station is provided with a ring shaft structure for driving the infrared distance measurement sensors to detect the depth of the hub. The annular shaft structure comprises a center shaft which rotates on the base table in a fixed-axis mode, a plurality of sets of arc-shaped abutting bases which are arranged in an annular array mode and used for abutting against the inner circumferential face of the hub are arranged on the shaft injection base, and a sizing assembly which drives the arc-shaped abutting bases to synchronously move in the same direction or in the opposite directions is arranged on the base table. The wheel hub depth detection device is provided with a plurality of groups of infrared distance measuring sensors, comprehensive depth detection can be carried out on the wheel hub from different positions, the multi-azimuth measurement mode ensures that the depths of different positions of the same wheel base of the wheel hub are accurately evaluated, and the detection comprehensiveness and reliability are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of wheel hub detection, in particular to intelligent detection equipment for automobile wheel hubs. Background Art

[0002] With the rapid development of the automobile industry, the quality and performance of automobile wheels, as important components connecting wheels and vehicle suspension systems, directly affect the driving safety, handling and overall service life of the vehicle. The structural integrity and accuracy of the wheel hub are crucial to the stability and handling of the vehicle. Damaged or deformed wheel hubs may cause the vehicle to shake, deflect or even cause serious safety accidents during driving. Therefore, timely detection and repair of wheel hub defects are of great significance to ensure driving safety.

[0003] Chinese patent (Announcement No.: CN117329985A), the scheme specifically includes a frame, a transmission module, a lifting module, a centering module and a visual inspection module, the visual inspection module includes at least two detectors, at least one of which is used to detect the upper surface of the wheel hub to be inspected, and at least one detector is used to detect the lower surface of the wheel hub to be inspected, and the detector is used to perform 2D or 3D inspection on the wheel hub to be inspected. The present invention uses at least two detectors to simultaneously inspect the upper and lower surfaces of the wheel hub to be inspected, with high inspection efficiency and more accurate inspection results.

[0004] The wheel hub detection device in the above patent can synchronously detect the upper and lower surfaces of the wheel hub when measuring the depth of the wheel hub. However, the wheel hub may have depth deviation on the same radial line during production, that is, the depths of different positions of the wheel hub may be different. It is difficult for existing detection devices to realize a multi-directional detection process for different positions of the wheel hub, and it is difficult to comprehensively evaluate the depth index of the wheel hub. Therefore, an intelligent detection device for automobile wheel hubs is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent detection device for automobile wheel hubs, which has the advantage of being able to perform comprehensive depth detection of the wheel hubs from different positions, thereby solving the problem of difficulty in realizing multi-directional detection of different positions of the wheel hubs.

[0006] To achieve the above object, the present invention provides the following technical solutions: an intelligent detection device for automobile wheel hubs, comprising a base for supporting the wheel hubs and a U-shaped mounting frame for fixing multiple groups of infrared ranging sensors, the infrared ranging sensors are electrically connected to terminal modules, and the characteristics are: a ring shaft structure for driving the infrared ranging sensors to detect the depth of the wheel hubs is provided on the base; The ring shaft structure includes a central shaft that rotates on the base, the central shaft includes an integrally formed spline portion, one end of the central shaft facing the base is fixedly connected to an axis-emitting seat, the axis-emitting seat is provided with a plurality of groups of arc-shaped pressing seats arranged in an annular array and used to abut against the inner circumference of the hub, and the base is provided with a sizing component that drives the plurality of groups of arc-shaped pressing seats to synchronously move toward or away from each other to determine the position of the hub detection center point; The base is provided with a rectangular through slot for the U-shaped mounting frame to slide and connect in the horizontal direction, and a plurality of groups of infrared distance measuring sensors are respectively fixedly connected to the opposite surfaces of the U-shaped mounting frame, and a radial motion component is provided on the base to drive the U-shaped mounting frame to reciprocate in the horizontal direction; A positioning seat is fixedly connected to the base, and a variable measurement component is provided on the positioning seat for driving the axis-shooting seat to rotate so as to drive the wheel hub to rotate horizontally.

[0007] Preferably, the sizing component comprises a spline cylinder which is slidably mounted on the spline part and can be lifted and lowered freely on the spline part, a group of shaft extension rods are respectively fixedly connected to the multiple groups of arc-shaped pressure seats, and an axial groove for the shaft extension rods to be slidably connected is provided on the shaft-shooting seat. The sizing component comprises a spline cylinder which is slidably mounted on the spline part and can be lifted and lowered freely on the spline part, a group of shaft extension rods are respectively fixedly connected to the multiple groups of arc-shaped pressure seats, and an axial groove for the shaft extension rods to be slidably connected is provided on the shaft-shooting seat; A connecting rod is fixedly rotated on the lower surface of the shaft extension rod, and one end of the connecting rod away from the shaft extension rod is fixedly rotated on the spline cylinder.

[0008] Preferably, a positioning cylinder is sleeved on the central axis, the positioning cylinder is fixedly axially rotated on the positioning seat, a worm is fixedly sleeved on the outer peripheral surface of the positioning cylinder, and the worm is meshingly connected with a worm wheel; The base is fixedly connected to a side seat, a fork-shaped rod is provided on the side seat, a swing rod is fixedly rotated on the middle part of the fork-shaped rod, an 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 seat; The spline cylinder is provided with a positioning ring for fixed axis rotation, the outer peripheral surface of the positioning ring is fixedly connected with an axial block, a side of the fork-shaped rod facing the axial block is fixedly connected with a positioning pin, and the axial block is provided with a positioning groove for the positioning pin to slide and connect.

[0009] Preferably, the side seat is provided with a sector gear driven by a motor and freely rotating in the horizontal direction, the sector gear rotates on a fixed axis 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 cylinder, the sector gear is fixedly connected with an incomplete limit ring, the same-direction gear is fixedly connected with multiple groups of arc-shaped limit seats, and the outer arc surface of the arc-shaped limit seat is in sliding contact with the outer peripheral surface of the incomplete limit ring.

[0010] Preferably, the variable measurement assembly comprises a transverse hollow cylinder fixedly connected to the base, the transverse hollow cylinder is provided with a concentric column which can slide freely in the horizontal direction and rotate 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; A clamping plate is fixedly connected to the positioning seat, a circular hole is opened on the clamping plate for the spline shaft to pass through, a driven bevel gear is slidably sleeved on the spline shaft, the driven bevel gear rotates on the clamping plate, and the driven bevel gear is meshedly connected with the driving bevel gear, and the driving bevel gear is coaxially fixed with the center shaft.

[0011] Preferably, the radial motion assembly includes a bottom gear that freely rotates in the horizontal direction and is transmission-connected to the sector gear, the bottom gear is fixedly rotated on the transverse hollow cylinder, the bottom gear is meshedly connected with a rack, and a transverse slide groove is provided on the transverse hollow cylinder to which the rack is slidably connected; A clearance pin is fixedly connected to the side of the rack facing the concentric column, and a groove body 1 for the clearance pin to slide through is provided on the transverse hollow cylinder, and a spiral groove for the clearance pin to slide through is provided on the concentric column; The concentric column is fixedly axially rotated on the U-shaped mounting frame.

[0012] Preferably, a side protrusion is fixedly connected to the concentric column, and two groups of annular grooves for sliding connection of the side protrusion are opened on the transverse hollow cylinder, and an inward positioning groove for sliding connection of the side protrusion is also opened on the transverse hollow cylinder, and the two ends of the inward positioning groove are respectively connected to a group of annular grooves.

[0013] 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.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 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, so as to perform comprehensive depth detection of the wheel hub from different positions. This multi-directional measurement method ensures that the depth of different positions of the same wheelbase of the wheel hub is accurately evaluated, which significantly improves the comprehensiveness and reliability of the detection.

[0015] 2. The present invention can automatically correct the position of the wheel hub by setting a sizing component so that the wheel hub and the central 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

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the components of the U-shaped mounting frame of the present invention; Figure 3 This is a schematic diagram of the components where the axial injection seat of the present invention is located; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the components where the swing rod of the present invention is located; Figure 6 This is a schematic diagram of the components where the transverse hollow cylinder of the present invention is located; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 It is a schematic diagram of the components where the concentric columns of the present invention are located; Fig. 9 It is a schematic diagram of the component where the side protrusion block of the present invention is located.

[0017] In the figure: 1, base; 2, U-shaped mounting frame; 3, infrared distance sensor; 4, central axis; 401, spline part; 5, positioning cylinder; 6, worm; 7, worm wheel; 8, swing rod; 9, fork rod; 10, side seat; 11, positioning seat; 12, spline cylinder; 13, isotropic ring; 14, axial block; 15, isotropic pin; 16, isotropic groove; 17, connecting rod; 18, axial seat; 19, axial extension rod; 20, axial groove; 21, arc shaped pressure seat; 22, co-directional gear; 23, arc-shaped limit seat; 24, sector gear; 25, incomplete limit ring; 26, active bevel gear; 27, driven bevel gear; 28, spline shaft; 29, bottom gear; 30, rack; 31, horizontal hollow cylinder; 32, horizontal slide groove; 33, concentric column; 34, give way pin; 35, spiral groove; 36, side protrusion; 37, annular groove; 38, inward positioning groove; 39, rectangular through groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 9 The present invention provides a technical solution: an intelligent detection device for automobile wheel hubs, comprising a base 1 for supporting the wheel hubs and a U-shaped mounting frame 2 for fixing a plurality of infrared distance measuring sensors 3, the infrared distance measuring sensors 3 being electrically connected to a terminal module, and a ring shaft structure for driving the infrared distance measuring sensors 3 to detect the depth of the wheel hubs being provided on the base 1; The ring shaft structure includes a central shaft 4 that rotates on the base 1, the central shaft 4 includes an integrally formed spline portion 401, and one end of the central shaft 4 that faces the base 1 is fixedly connected to an axis-emitting seat 18, and the axis-emitting seat 18 is provided with a plurality of groups of arc-shaped pressing seats 21 arranged in an annular array and used to abut against the inner circumference 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 synchronously move 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, and a plurality of groups of infrared distance measuring sensors 3 are respectively fixedly connected to the opposite surfaces of the U-shaped mounting frame 2. The base 1 is provided with a radial motion component for driving the U-shaped mounting frame 2 to reciprocate in the horizontal direction. The base 1 is fixedly connected with a positioning seat 11, and the positioning seat 11 is provided with a variable measurement component for driving the axis-shooting seat 18 to rotate so as to drive the wheel hub to rotate horizontally.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, when the depth of the wheel hub is detected, the wheel hub is placed on the base 1. In the initial state, the spacing between the multiple groups of arc-shaped pressure seats 21 is the smallest. When the wheel hub is placed, the multiple groups of arc-shaped pressure seats 21 are located at the inner circle of the wheel hub. When the wheel hub is detected, the multiple groups of arc-shaped pressure seats 21 are driven to move synchronously in opposite directions in the horizontal direction through the sizing component to increase the distance between the multiple groups of arc-shaped pressure seats 21, so that the arc-shaped pressure seats 21 are squeezed and contacted with the inner circumference of the wheel hub. At the same time, when the multiple groups of arc-shaped pressure seats 21 move in opposite directions, the position of the wheel hub can be corrected, and when the multiple groups of arc-shaped pressure seats 21 are all in squeeze contact with the inner circumference of the wheel hub, the wheel hub and the center axis 4 can be on the same central axis, thereby determining the detection position of the wheel hub.

[0021] At the same time, in the initial state, the two groups of infrared ranging sensors 3 arranged on the U-shaped mounting frame 2 are both located on the side close to the central axis of the central axis 4. Under the action of the radial motion component, the U-shaped mounting frame 2 can be driven to move horizontally to change the horizontal position of the two groups of infrared ranging sensors 3. Multiple groups of infrared ranging sensors 3 can move along the opening direction of the rectangular through groove 39, and the infrared ranging sensors 3 at the bottom can detect the wheel hub through the rectangular through groove 39. Among them, the multiple groups of infrared ranging sensors 3 are respectively 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 ranging sensors 3 are both toward the base 1, and the spacing between the multiple groups of infrared ranging sensors 3 relatively arranged on the U-shaped mounting frame 2 is fixed. Therefore, through the radial motion component, the multiple groups of infrared ranging sensors 3 can move along the radial direction of the wheel hub, and then perform the ranging process on different positions on the same radius line in the wheel hub.

[0022] At the same time, when the multiple groups of infrared ranging sensors 3 are at the terminal end of the horizontal stroke, they correspond to the edge position of the wheel hub. When measuring the depth of the wheel hub, since the spacing between the multiple groups of infrared ranging sensors 3 relatively set is a fixed value, the distance data measured by the two relatively set groups of infrared ranging sensors 3 are subtracted from the fixed value to calculate the depth value of the wheel hub.

[0023] In addition, the variable measurement component can drive the center axis 4 and the axial projection seat 18 to rotate, thereby driving multiple groups of arc-shaped pressure seats 21 to rotate synchronously. Since the arc-shaped pressure seat 21 is in compression contact with the inner circumference of the wheel hub, and the contact surface friction between the arc-shaped pressure seat 21 and the wheel hub is relatively large, when the U-shaped mounting frame 2 and the axial projection seat 18 rotate, the wheel hub can be driven to rotate slowly in the horizontal direction, so as to realize detection of different positions of the same radial distance of the wheel hub, so as to determine whether there is a depth deviation of the wheel hub, thereby avoiding measurement deviation caused by the measurement process of a single position. Among them, multi-angle and multi-position measurements can comprehensively evaluate the depth consistency of the wheel hub, and promptly discover possible depth deviations of the wheel hub at different positions, thereby ensuring the overall quality of the wheel hub.

[0024] In one of the more preferred embodiments, the sizing assembly includes a spline cylinder 12 which is slidably sleeved on the spline portion 401 and can be freely lifted and lowered on the spline portion 401, a group of shaft extension rods 19 are respectively fixedly connected to the plurality of arc-shaped pressing seats 21, and an axial groove 20 for sliding connection of the shaft extension rods 19 is provided on the shaft projection seat 18; A connecting rod 17 is fixedly rotatable on the lower surface of the shaft extension rod 19 , and one end of the connecting rod 17 away from the shaft extension rod 19 is fixedly rotatable on the spline cylinder 12 .

[0025] The central shaft 4 is sleeved with a positioning cylinder 5, which is fixedly rotated on a positioning seat 11, and a worm 6 is fixedly sleeved on the outer peripheral surface of the positioning cylinder 5, and the worm 6 is meshedly connected with a worm wheel 7; The base 1 is fixedly connected to a side seat 10, on which a fork-shaped rod 9 is provided, a swing rod 8 is fixedly rotated in the middle of the fork-shaped rod 9, and one end of the swing rod 8 away from the fork-shaped rod 9 is fixedly rotated on a worm gear 7, and the worm gear 7 and the fork-shaped rod 9 are both fixedly rotated on the side seat 10; The spline cylinder 12 is provided with a positioning ring 13 for fixed axis rotation, the outer peripheral surface of the positioning ring 13 is fixedly connected to an axial block 14, a positioning pin 15 is fixedly connected to the side of the fork rod 9 facing the axial block 14, and the axial block 14 is provided with a positioning groove 16 for the positioning pin 15 to slide and connect.

[0026] like Figure 2-Figure 7As shown, when the positioning cylinder 5 rotates in the horizontal direction, it can drive the worm 6 fixed thereon to rotate synchronously, and the worm 6 is meshingly connected with the worm wheel 7, so that the worm wheel 7 can be driven to rotate freely in the vertical direction through the worm 6, and a freely deflectable rocker arm 8 is provided between the worm wheel 7 and the fork rod 9, so that when the worm wheel 7 rotates, the fork rod 9 can be driven to swing on the side seat 10 through the rocker arm 8.

[0027] At the same time, the end of the fork rod 9 is fixedly set on the isochronous pin 15 and slidably connected to the axial block 14 through the isochronous groove 16, and the axial block 14 is fixedly connected to the isochronous ring 13, and its isochronous ring 13 rotates on the spline cylinder 12. Therefore, when the fork rod 9 swings in the vertical direction, the isochronous pin 15 can drive the axial block 14, the isochronous ring 13 and the spline cylinder 12 to move in the vertical direction. When the horizontal height of the spline cylinder 12 changes, it can drive the connecting rod 17 to deflect, and then drive the axial extension rod 19 to slide on the axial groove 20, so as to change the arc-shaped pressure seat 21 fixedly set at the end of the axial extension rod 19 to be close to or away from the central axis of the center axis 4 and the axial projection seat 18.

[0028] Among them, when the wheel hub is inspected, the position of the wheel hub on the base 1 is corrected by making multiple groups of arc-shaped pressure seats 21 move in opposite directions and utilizing the horizontal movement process of the multiple groups of arc-shaped pressure seats 21. When the multiple groups of arc-shaped pressure seats 21 are in compression contact with the inner circumference of the wheel hub, the wheel hub and the center axis 4 can be placed on the same central axis, thereby determining the inspection position of the wheel hub.

[0029] Furthermore, 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 rotates on a fixed axis on the positioning seat 11. The fan-shaped gear 24 is meshedly connected with a same-direction gear 22. The same-direction gear 22 is fixedly sleeved on the positioning tube 5. An incomplete limiting ring 25 is fixedly connected to the fan-shaped gear 24. Multiple 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.

[0030] like Figure 2 , Figure 5 and Figure 6 As shown, the fan gear 24 is driven to rotate in the horizontal direction by a motor fixed on the positioning seat 11, and then the fan gear 24 can drive the co-directional gear 22 to rotate synchronously when it is meshed with the co-directional gear 22. At the same time, the co-directional gear 22 is fixedly mounted on the positioning cylinder 5, and then the positioning cylinder 5 and the worm 6 can be driven to rotate synchronously through the rotation process of the co-directional gear 22, thereby driving the sizing component to operate, so as to determine the detection position of the hub or release the restriction on the hub after the detection is completed.

[0031] It should be noted that when the same-direction gear 22 and the sector gear 24 are not in a meshing state, the incomplete limit ring 25 corresponds to the position of one set of arc-shaped limit seats 23, and the incomplete limit ring 25 is in sliding contact with the arc-shaped limit seat 23, so that the rotation of the same-direction gear 22 can be limited by the incomplete limit ring 25, thereby preventing the same-direction gear 22 and its positioning cylinder 5 and other components from rotating under external force, thereby ensuring that multiple sets of arc-shaped pressure seats 21 can perform a stable positioning process on the wheel hub.

[0032] On the basis of the sizing component embodiment, the variable measuring component 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, which can slide freely 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 is opened on the clamping plate for the spline shaft 28 to pass through. A driven bevel gear 27 is slidably 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 meshedly connected with the driving bevel gear 26. The driving bevel gear 26 is coaxially fixed with the center shaft 4.

[0033] like Figure 2 , Figure 5 and Figure 6 As shown, a transverse hollow cylinder 31 is fixedly arranged on the base 1, and a coaxial concentric column 33 is arranged on the transverse hollow cylinder 31. The concentric column 33 can move freely in the horizontal direction and can 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 clamping plate is fixed on the positioning seat 11, and the driven bevel gear 27 rotates on the clamping plate. Therefore, when the spline shaft 28 follows the horizontal movement of the concentric column 33, it slides on the driven bevel gear 27 without changing the horizontal position of the driven bevel gear 27, so that the driven bevel gear 27 can always be in meshing state with the active bevel gear 26, and the two will not be separated due to the horizontal movement of the concentric column 33.

[0034] At the same time, when the concentric column 33 is at the horizontal stroke terminal position and rotates in the vertical direction, the spline shaft 28 can drive the driven bevel gear 27 slidably sleeved thereon to rotate synchronously, thereby driving the active bevel gear 26 meshing with the driven bevel gear 27 to rotate, wherein the active bevel gear 26 is coaxially fixed on the central shaft 4, so the central shaft 4 can be driven to rotate synchronously through the rotation process of the spline shaft 28, and the spline portion 401 integrally formed on the central shaft 4 is slidably sleeved with a spline portion 401, thereby driving the shaft seat 18 and the multiple groups of shaft extension rods 19 and The arc-shaped pressure seats 21 rotate synchronously, wherein multiple groups of arc-shaped pressure seats 21 rub against the inner circumference of the wheel hub, thereby driving the wheel hub to rotate in the horizontal direction, so as to drive the infrared ranging sensor 3 to correspond to the wheel hub at the same axial distance position, thereby being able to perform depth detection of the wheel hub from multiple positions, reducing the error caused by a single measuring point, and significantly improving the accuracy and reliability of the overall detection through multiple measurements and data averaging. This multiple, multi-angle measurement method effectively reduces the impact of a single measurement position deviation on the overall detection result, ensuring the comprehensiveness and consistency of the measurement data.

[0035] Based on the embodiment of the variable measuring assembly, the radial motion assembly includes a bottom gear 29 that rotates freely in the horizontal direction and is transmission-connected to the sector gear 24, the bottom gear 29 rotates on a fixed axis on a transverse hollow cylinder 31, the bottom gear 29 is meshedly connected with a rack 30, and a transverse slide groove 32 is provided on the transverse hollow cylinder 31 to which the rack 30 is slidably connected; The rack 30 is fixedly connected with a clearance pin 34 on one side facing the concentric column 33, and a groove body 1 for the clearance pin 34 to slide through is formed on the transverse hollow cylinder 31, and a spiral groove 35 for the clearance pin 34 to slide and connect is formed on the concentric column 33; The concentric column 33 is rotatably mounted on the U-shaped mounting frame 2 .

[0036] The concentric column 33 is fixedly connected with a side protrusion 36, and the transverse hollow cylinder 31 is provided with two groups of annular grooves 37 for the side protrusion 36 to slide and connect. The transverse hollow cylinder 31 is also provided with an inward positioning groove 38 for the side protrusion 36 to slide and connect. The two ends of the inward positioning groove 38 are respectively connected with a group of annular grooves 37.

[0037] 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 .

[0038] like Figure 6 , Figure 8 and Fig. 9As shown, when the sector gear 24 rotates, it can drive the bottom gear 29 connected thereto to rotate synchronously, thereby driving the rack 30 meshing with the bottom gear 29 to move in the horizontal direction, wherein the give way pin 34 fixedly arranged on the rack 30 is slidably connected to the concentric column 33 through the spiral groove 35, and in the initial state, the side protrusion 36 is at the junction of the annular groove 37 and the side protrusion 36, and at this time, when the rack 30 moves in the horizontal direction, since the concentric column 33 is not restricted, the concentric column 33 will move synchronously with the rack 30, that is, the side protrusion 36 will slide in the inward positioning groove 38, and then push the U-shaped mounting frame 2 to cause the U-shaped mounting frame 2 to slide on the rectangular through groove 39, thereby changing the horizontal position of the multiple groups of infrared ranging sensors 3.

[0039] Furthermore, as the rack 30 and the concentric column 33 move horizontally, the side protrusion 36 moves to the terminal position of the inward positioning groove 38. At this time, when the rack 30 continues to move, it is restricted by the annular groove 37 and cannot continue to move with the rack 30, so the concentric column 33 is now in the terminal position of the horizontal stroke.

[0040] At the same time, as the rack 30 continues to move, the clearance pin 34 can slide on the spiral groove 35, thereby driving the concentric column 33 to rotate in the vertical direction, thereby driving the spline shaft 28 to rotate so that the multiple sets of arc-shaped pressure seats 21 can drive the hub to rotate.

[0041] It should be noted that, in actual use, the sector gear 24 rotates synchronously with the bottom gear 29, and the give way pin 34 can mesh with the co-directional gear 22 during the initial rotation and drive it to rotate, so that the multiple sets of arc-shaped pressure seats 21 can determine the detection position of the wheel hub. However, in this process, the rotation process of the bottom gear 29 can change the horizontal position of the U-shaped mounting frame 2 and the infrared ranging sensor 3 through the concentric column 33. Therefore, in the initial state, the multiple sets of infrared ranging sensors 3 are close to the central axis of the wheel hub to provide redundant displacement in the process of the multiple sets of arc-shaped pressure seats 21 supporting the wheel hub, and after the arc-shaped pressure seats 21 determine the detection center of the wheel hub, the horizontal movement of the multiple sets of infrared ranging sensors 3 can realize the depth detection process of different positions on the same diameter line of the wheel hub.

[0042] Meanwhile, in actual use, it is necessary to control the shape structure of the axial projection seat 18 and the positions of the axial extension rod 19 and the arc-shaped pressing seat 21 to avoid their presence blocking the measurement process of the infrared ranging sensor 3, thereby ensuring detection accuracy.

[0043] Among them, 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. Therefore, when the rack 30 reciprocates after moving to form the terminal, since the side protrusion 36 is in the annular groove 37, the side protrusion 36 is restricted by the annular groove 37, so that the concentric column 33 rotates in the opposite direction first, and after the rotation, the side protrusion 36 corresponds to the inward positioning groove 38, and then it will return to the initial position with the horizontal movement process of the rack 30.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention 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 hubs and a U-shaped mounting frame (2) arranged thereon for fixing a plurality of sets of infrared distance measuring sensors (3), wherein the infrared distance measuring 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 annular shaft structure comprises a central shaft (4) which is fixedly rotated on a base (1), the central shaft (4) comprising an integrally formed spline portion (401), one end of the central shaft (4) facing the base (1) being fixedly connected to an axis-receiving seat (18), the axis-receiving seat (18) being provided with a plurality of groups of arc-shaped pressing seats (21) arranged in an annular array and used for pressing against the inner circumference of the wheel hub, and a sizing component which drives the plurality of groups of arc-shaped pressing seats (21) to synchronously move towards or away from each other to determine the position of the detection center point of the wheel hub; 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; The base (1) is fixedly connected to a positioning seat (11), and the positioning seat (11) is provided with a variable measurement component that drives the axis-shooting seat (18) to rotate so as to drive the wheel hub to rotate horizontally.

2. The intelligent detection device for automobile wheel hub according to claim 1, characterized in that: The sizing component comprises a spline cylinder (12) which is slidably sleeved on the spline portion (401) and can be freely lifted and lowered on the spline portion (401); a plurality of groups 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 the shaft extension rods (19) to be slidably connected. 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).

3. The intelligent detection device for automobile wheel hub according to claim 2 is characterized in that: The central shaft (4) is sleeved with a positioning cylinder (5), the positioning cylinder (5) is fixedly rotatable on a positioning seat (11), a worm (6) is fixedly sleeved on the outer peripheral surface of the positioning cylinder (5), and the worm (6) is meshingly 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 a 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 positioning ring (13) for fixed axis rotation, an axial block (14) is fixedly connected to the outer peripheral surface of the positioning ring (13), a positioning pin (15) is fixedly connected to the side of the fork-shaped rod (9) facing the axial block (14), and the axial block (14) is provided with a positioning groove (16) for the positioning pin (15) to be slidably connected; The side seat (10) is provided with a fan-shaped gear (24) driven by a motor and freely rotating in a horizontal direction. The fan-shaped gear (24) is fixedly rotated on the positioning seat (11). The fan-shaped gear (24) is meshedly connected 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 comprises a transverse hollow cylinder (31) fixedly connected to a base (1), the transverse hollow cylinder (31) being provided with a concentric column (33) which is free to slide in a horizontal direction and to rotate freely at the end of the movement, the concentric column (33) slidingly passing through the transverse hollow cylinder (31), and a spline shaft (28) being coaxially fixed on the concentric column (33); A clamping plate is fixedly connected to the positioning seat (11), and a circular hole is formed on the clamping plate for the spline shaft (28) to pass through. A driven bevel gear (27) is slidably sleeved on the spline shaft (28), and the driven bevel gear (27) rotates on the clamping plate with a fixed axis, and the driven bevel gear (27) is meshedly connected to the driving bevel gear (26), and the driving bevel gear (26) is coaxially fixed to the central shaft (4).

4. The intelligent detection device for automobile wheel hub according to claim 3 is characterized in that: The radial motion assembly comprises a bottom gear (29) which is freely rotatable in the horizontal direction and is transmission-connected to the sector gear (24).

5. The intelligent detection device for automobile wheel hub according to claim 4 is characterized in that: The bottom gear (29) is fixedly rotated on the transverse hollow cylinder (31), the bottom gear (29) is meshingly connected with a rack (30), and the transverse hollow cylinder (31) is provided with a transverse sliding groove (32) to which the rack (30) is slidably connected.

6. The intelligent detection device for automobile wheel hub according to claim 5, characterized in that: A clearance pin (34) is fixedly connected to the side of the rack (30) facing the concentric column (33), and a groove body (35) for the clearance pin (34) to slide through is formed on the transverse hollow cylinder (31), and a spiral groove (35) for the clearance pin (34) to slide and connect is formed on the concentric column (33); The concentric column (33) is rotatably mounted on the U-shaped mounting frame (2).

7. The intelligent detection device for automobile wheel hub according to claim 6, characterized in that: The concentric column (33) is fixedly connected with a side protrusion (36), the transverse hollow cylinder (31) is provided with two groups of annular grooves (37) for the side protrusions (36) to be slidably connected, and the transverse hollow cylinder (31) is also provided with an inward positioning groove (38) for the side protrusions (36) to be slidably connected, and the two ends of the inward positioning groove (38) are respectively communicated with a group of annular grooves (37).

8. The intelligent detection device for automobile wheel hub according to claim 7, 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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