Wheel hub detection device and method

Abstract

The invention discloses a wheel hub detection device and method, including a lifting drive device, a tape component connected to the lifting drive device, and a wheel hub placement table, the tape component including a main support, a winding motor, and a release motor, the main support is provided with a release reel, a winding reel, a fixed guide roller, and a movable guide roller, the tape is wound on the release reel, one end of the tape is connected to the winding reel after passing the movable guide roller and the fixed guide roller; the release reel is connected to the release motor, and the winding reel is connected to the winding motor; the tape located between the fixed guide roller and the movable guide roller is a test tape segment; the bonding surface on the test tape segment faces downward; the main support is provided with a movable guide roller driving member for driving the movable guide roller to move horizontally; the main support is provided with a camera, and the camera is located above the test tape segment. The invention does not require manual bonding of the tape and manual tearing off of the tape, the testing process is more convenient, the testing efficiency is improved, and the testing needs of large quantities can be effectively met.

Description

Technical Field

[0001] The present invention relates to the technical field of wheel hub detection, and in particular to a wheel hub detection device and method. Background Art

[0002] Existing automotive wheel surfaces are usually sprayed with black, silver, red or other non-transparent paint. Wheel paint film adhesion testing is a test to evaluate the bonding strength between the paint applied on the wheel and the substrate. Good adhesion ensures that the paint film will not easily peel, bubble or detach from the substrate during use, which is crucial to protecting the wheel from corrosion and damage.

[0003] At present, the cross-hatch test is a commonly used method for testing the adhesion of wheel hub paint film. This method is to first use a tool to cut a series of parallel lines on the paint surface of the wheel hub, and then cross-cut at a certain angle to form a grid pattern; the depth of the scratch needs to be greater than the thickness of the paint film; use tape to stick on the grid, and then quickly tear it off, observe the paint falling off of the paint film, and evaluate the adhesion of the paint film by the paint falling area, etc. The specific evaluation method can be evaluated according to the ASTM D3359 standard or the ISO 2409 standard.

[0004] However, the existing wheel hub paint film adhesion test method has the following shortcomings: 1. It is necessary to manually stick and tear off the tape, which is cumbersome to operate and has low test efficiency, making it difficult to meet large-scale testing needs; 2. In the traditional test method, after the tape is torn off, the paint peeling on the paint surface is observed with the naked eye to judge the size of the paint peeling area. This judgment method has a large error and the test results are not easy to archive. Summary of the invention

[0005] The purpose of the present invention is to solve the deficiencies in the prior art and provide a wheel hub detection device and method.

[0006] The objective of the present invention is achieved through the following technical scheme: a wheel hub detection device, comprising a lifting drive device, a tape component connected to the lifting drive device, and a wheel hub placement table, the tape component comprising a main body bracket, a winding motor, and a release motor, the main body bracket is provided with a release reel, a winding reel, a fixed guide roller, and a movable guide roller, the tape is wound on the release reel, one end of the tape is connected to the winding reel after passing around the movable guide roller and the fixed guide roller; the release reel is connected to the release motor, and the winding reel is connected to the winding motor; the tape located between the fixed guide roller and the movable guide roller is a test tape segment; the adhesive surface on the test tape segment faces downward; the main body bracket is provided with a movable guide roller driving member for driving the movable guide roller to move horizontally; the main body bracket is provided with a camera, and the camera is located above the test tape segment.

[0007] Preferably, it also includes a frame and a backlight source, the backlight source is located on one side of the hub placement table, a guide rail is arranged on the top of the frame, a moving seat is slidably connected to the guide rail, and a lifting drive device is arranged on the moving seat; a translation drive mechanism is arranged between the moving seat and the frame; the tape component is driven to move between above the hub placement table and above the backlight source by the translation drive mechanism.

[0008] Preferably, the translation drive mechanism comprises a translation drive motor arranged on the moving seat, a rack arranged on the frame, the rack is parallel to the guide rail, the translation drive motor is connected to a gear, and the gear is meshed with the rack.

[0009] Preferably, slide grooves are symmetrically arranged on both sides of the main support, and sliders are slidably connected in the slide grooves on both sides, and both ends of the movable guide roller are rotatably connected to the sliders respectively; the movable guide roller driving member is connected to the slider and drives the slider to move in the slide groove.

[0010] Preferably, the movable guide roller comprises a first roller assembly and a second roller assembly, one end of the first roller assembly and the second roller assembly are both provided with an ear shaft, the other end of the first roller assembly is provided with a guide body, the other end of the second roller assembly is provided with a guide groove matching the guide body, the guide body and the guide groove are slidably matched, the first roller assembly and the second roller assembly are coaxially arranged; the ear shaft is connected to the slider; the first roller assembly is provided with a first fixing ring, the second roller assembly is provided with a second fixing ring, a plurality of elastic sheets are provided between the first fixing ring and the second fixing ring, the elastic sheets are arranged in a circular array on the periphery of the first roller assembly and the second roller assembly; a rubber layer is provided on the periphery of the elastic sheet; a boss corresponding to the slider is provided on the inner side of the main frame, and the boss is provided along the length direction of the slide groove; an inclined surface is provided on the end of the boss away from the fixed guide roller; when the inner side of the slider moves to the boss along the inclined surface, the first roller assembly and the second roller assembly approach each other so that the middle part of the elastic sheet protrudes toward the outer side of the movable guide roller.

[0011] Preferably, the cross section of the slider is in the shape of an I.

[0012] Preferably, the movable guide roller driving member is an electric cylinder, a first connecting bracket is provided on the main body bracket, a second connecting bracket is provided on the slider, the cylinder body of the electric cylinder is rotatably connected to the first connecting bracket, and the front end of the telescopic rod of the electric cylinder is rotatably connected to the second connecting bracket.

[0013] Preferably, the elastic sheet is made of spring steel.

[0014] A wheel hub detection method comprises the following specific steps:

[0015] Step 1: Select a flat surface on the wheel hub surface as the test surface and draw a grid on the paint film on the test surface;

[0016] Step 2: Place the wheel hub to be tested on the wheel hub placement table with the test surface facing upward, move the tape component to the top of the test surface, and then drive the tape component down through the lifting drive device to make the test tape segment flush with the test surface on the wheel hub; drive the movable guide roller to move through the movable guide roller drive member, the movable guide roller first moves from the initial position toward the fixed guide roller and then returns to the initial position, and in the process of the movable guide roller moving toward the fixed guide roller, the inner side of the slider moves along the inclined surface to the boss, so that the first roller body assembly and the second roller body assembly are close to each other, so that the middle part of the elastic sheet bends toward the outer side of the movable guide roller; apply rolling pressure to the test tape segment through the movement of the movable guide roller to make the test tape adhere to the test surface;

[0017] Step 3: The lifting drive device drives the tape component to rise so that the test tape segment is separated from the test surface on the wheel hub;

[0018] Step 4: Move the tape component to above the backlight source so that the light generated by the backlight source is directed toward the test tape segment, and photograph the test tape segment with a camera to obtain a test image.

[0019] Preferably, in step 4, after obtaining the test image, the adhesion effect of the paint film is determined by detecting the area ratio of the light-transmitting area to the non-light-transmitting area in the test image.

[0020] The beneficial effects of the present invention are: the present invention does not require manual bonding of tape and manual tearing of tape, the test process is relatively convenient, the test efficiency is improved, and the test requirements of large quantities can be effectively met. The present invention uses a camera to take pictures and uses visual detection software to analyze and calculate the area of ​​the light-transmitting area and the non-light-transmitting area and the ratio of the two. Compared with the traditional naked eye observation and judgment method, the detection accuracy is effectively improved, and the reliability of the detection result is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the tape component in one direction.

[0023] Figure 3 This is a schematic diagram of the structure of the tape component in another direction.

[0024] Figure 4 It is a schematic diagram of the structure at the boss position.

[0025] Figure 5 A side view of the tape component.

[0026] Figure 6 for Figure 5 Cross-sectional view along the AA direction.

[0027] Figure 7 This is a schematic diagram of the structure after the rubber layer of the movable guide roller is removed.

[0028] In the figure: 1, frame, 2, wheel hub placement table, 3, backlight source, 4, tape component, 4-1, main frame, 4-2, release reel, 4-3, release motor, 4-4, reel, 4-5, reel motor, 4-6, tape, 4-7, camera bracket, 4-8, camera, 4-9, movable guide roller, 4-9a, first roller assembly, 4-9b, second roller assembly, 4-9c, guide body, 4-9d, guide groove, 4-9e, ear shaft, 4 -9f, first fixed ring, 4-9g, second fixed ring, 4-9h, elastic sheet, 4-9i, rubber layer, 4-10, fixed guide roller, 4-11, slide groove, 4-12, slider, 4-13, first connecting bracket, 4-14, second connecting bracket, 4-15, movable guide roller driving member, 4-16, boss, 5, guide rail, 6, movable seat, 7, lifting drive device, 8, guide rod, 9, translation drive motor, 10, gear, 11, rack. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying 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 belong to the scope of protection of the present invention.

[0030] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0031] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0032] like Figures 1 to 7As shown, a wheel hub detection device includes a lifting drive device 7, a tape component 4 connected to the lifting drive device 7, and a wheel hub placement platform 2. The tape component 4 includes a main frame 4-1, a winding motor 4-5, and a release motor 4-3. The main frame 4-1 is provided with a release reel 4-2, a winding reel 4-4, a fixed guide roller 4-10, and a movable guide roller 4-9. The tape 4-6 is wound on the release reel 4-2, and one end of the tape 4-6 is passed around the movable guide roller 4-9 and the fixed guide roller 4-1. 0 is connected to the take-up drum 4-4; the release drum 4-2 is connected to the release motor 4-3, and the take-up drum 4-4 is connected to the take-up motor 4-5; the tape 4-6 located between the fixed guide roller 4-10 and the movable guide roller 4-9 is the test tape segment; the adhesive surface on the test tape segment faces downward; the main support 4-1 is provided with a movable guide roller driving member 4-15 for driving the movable guide roller 4-9 to move horizontally; the main support 4-1 is provided with a camera 4-8, and the camera 4-8 is located above the test tape segment.

[0033] In the present invention, the adhesive tape 4-6 used is a transparent adhesive tape, which is light-transmissive. The unused adhesive tape 4-6 is wound on the release reel 4-2, and the release of the adhesive tape 4-6 is controlled by the release motor 4-3; while the used adhesive tape 4-6 is wound on the take-up reel 4-4, and the recovery of the adhesive tape 4-6 is controlled by the take-up motor 4-5. A positioning groove is provided on the hub placement table 2 for placing the hub to be tested. During the test, the lifting drive device 7 drives the tape component 4 to descend so that the bonding surface on the test tape segment contacts and bonds with the test surface on the hub.

[0034] In order to improve the bonding effect, the movable guide roller 4-9 of the present invention can be moved in the horizontal direction; before the test tape 4-6 needs to be bonded to the test surface, the movable guide roller 4-9 is located at a position away from the fixed guide roller 4-10 (i.e., the initial position) and remains in position. At this time, the function of the movable guide roller 4-9 is to guide the tape 4-6; when it is necessary to apply pressure to the test tape 4-6, the movable guide roller 4-9 is driven by the movable guide roller driving member 4-15 to move toward the fixed guide roller 4-10, and the movable guide roller 4-9 is rolled over the test tape segment so that the test tape segment can be better bonded to the test surface; after the tape 4-6 is bonded to the test surface on the wheel hub, the lifting drive device 7 drives the tape component 4 to move upward to separate the test tape segment from the test surface.

[0035] After the test tape segment is separated from the wheel hub, the test tape segment is photographed by camera 4-8 to obtain a test image. When tape 4-6 is separated from the wheel hub, part of the paint film on the test surface will be peeled off from the wheel hub surface due to insufficient adhesion, and the peeled paint film will stand on tape 4-6, so the area on tape 4-6 with the paint film is a non-light-transmitting area, and the rest of the area is a light-transmitting area; by analyzing the area size of the light-transmitting area and the non-light-transmitting area on the test image and the ratio between the two, the degree of paint peeling can be judged, and then the adhesion effect of the paint film can be judged. The larger the area ratio of the light-transmitting area to the non-light-transmitting area, the smaller the paint peeling area and the better the adhesion of the paint film; conversely, if the area ratio of the light-transmitting area to the non-light-transmitting area is smaller, the larger the paint peeling area and the worse the adhesion of the paint film.

[0036] The camera 4-8 used in the present invention is a visual inspection camera 4-8. The light-transmitting area and the non-light-transmitting area in the test image are identified by visual inspection software and the area of ​​the light-transmitting area and the non-light-transmitting area is calculated. The test image captured by the camera 4-8 can be conveniently stored and archived, which is convenient for later reference to the test results.

[0037] The present invention does not need to manually adhere the tape 4-6 or manually tear off the tape 4-6, the test process is more convenient, the test efficiency is improved, and the test requirements of a large number of tests can be effectively met. The present invention uses the camera 4-8 to take pictures and uses visual detection software to analyze and calculate the area of ​​the light-transmitting area and the non-light-transmitting area and the ratio of the two. Compared with the traditional naked eye observation and judgment method, the detection accuracy is effectively improved, and the reliability of the detection result is greatly improved.

[0038] A camera bracket 4-7 is provided on the main body bracket 4-1, and a camera 4-8 is installed on the camera bracket 4-7.

[0039] The present invention also includes a frame 1 and a backlight source 3. The backlight source 3 is located on one side of the hub placement platform 2. A guide rail 5 is arranged on the top of the frame 1. A movable seat 6 is slidably connected to the guide rail 5. A lifting drive device 7 is arranged on the movable seat 6. A translation drive mechanism is arranged between the movable seat 6 and the frame 1. The tape component 4 is driven by the translation drive mechanism to move between above the hub placement platform 2 and above the backlight source 3.

[0040] When it is necessary to adhere the tape 4-6 to the test surface during the test, the tape component 4 is driven to move to the top of the wheel hub by the translation drive mechanism; when the tape 4-6 is separated from the test surface on the wheel hub, the tape component 4 is driven to move to the top of the backlight source 3 by the translation drive mechanism. When the test tape segment is photographed by the camera 4-8, the backlight source 3 can provide background light. The background light cannot penetrate the area on the test tape segment where the paint film is adhered, thereby forming a non-light-transmitting area in the image taken by the camera 4-8, while the background light can penetrate the area on the test tape segment where the paint film is not adhered, thereby forming a non-light-transmitting area in the image taken by the camera 4-8. Among them, the setting of the background light source can improve the contrast between the non-light-transmitting area and the light-transmitting area in the image, which is convenient for distinguishing and identifying the non-light-transmitting area and the light-transmitting area in the test image.

[0041] In this embodiment, the lifting drive device 7 is an electric cylinder, which is arranged along the vertical direction, and the tape component 4 is connected to the lower end of the telescopic rod of the electric cylinder. A guide rod 8 is arranged on the main support 4-1 of the tape component 4, and a guide hole corresponding to the guide rod 8 is arranged on the moving seat 6, and the guide rod 8 passes through the guide hole.

[0042] The translation drive mechanism includes a translation drive motor 9 disposed on the moving seat 6, a rack 11 disposed on the frame 1, the rack 11 is parallel to the guide rail 5, and a gear 10 is connected to the translation drive motor 9, and the gear 10 is meshed with the rack 11. The translation drive motor 9 drives the gear 10 to rotate, and the cooperation between the gear 10 and the rack 11 drives the moving seat 6 to move along the guide rail 5, thereby driving the tape component 4 to move.

[0043] Slide grooves 4-11 are symmetrically arranged on both sides of the main support 4-1, and sliders 4-12 are slidably connected in the slide grooves 4-11 on both sides, and both ends of the movable guide roller 4-9 are rotationally connected to the sliders 4-12 respectively; the movable guide roller driving member 4-15 is connected to the slider 4-12 and drives the slider 4-12 to move in the slide groove 4-11.

[0044] Further, the movable guide roller 4-9 includes a first roller assembly 4-9a and a second roller assembly 4-9b. One end of the first roller assembly 4-9a and the second roller assembly 4-9b are both provided with an ear shaft 4-9e, the other end of the first roller assembly 4-9a is provided with a guide body 4-9c, the other end of the second roller assembly 4-9b is provided with a guide groove 4-9d matched with the guide body 4-9c, the guide body 4-9c is slidably matched with the guide groove 4-9d, and the first roller assembly 4-9a and the second roller assembly 4-9b are coaxially arranged; the ear shaft 4-9e is connected to the slider 4-12;

[0045] A first fixing ring 4-9f is provided on the first roller assembly 4-9a, a second fixing ring 4-9g is provided on the second roller assembly 4-9b, a plurality of elastic sheets 4-9h are provided between the first fixing ring 4-9f and the second fixing ring 4-9g, and the elastic sheets 4-9h are arranged in a circular array on the periphery of the first roller assembly 4-9a and the second roller assembly 4-9b; a rubber layer 4-9i is provided on the periphery of the elastic sheet 4-9h;

[0046] A boss 4-16 corresponding to the slider 4-12 is arranged on the inner side of the main support 4-1, and the boss 4-16 is arranged along the length direction of the slide groove 4-11; an inclined surface is arranged on the end of the boss 4-16 away from the fixed guide roller 4-10; when the inner side of the slider 4-12 moves along the inclined surface to the boss 4-16, the first roller body assembly 4-9a and the second roller body assembly 4-9b approach each other so that the middle part of the elastic sheet 4-9h protrudes toward the outer side of the movable guide roller 4-9.

[0047] The slider 4-12 is provided with an axial hole matching the ear shaft 4-9e, and the ear shaft 4-9e is rotatably connected to the axial hole. The cross sections of the guide body 4-9c and the guide groove 4-9d are both rectangular, and the guide body 4-9c extends into the guide groove 4-9d. Through the cooperation between the guide body 4-9c and the guide groove 4-9d, the first roller assembly 4-9a and the second roller assembly 4-9b can move relative to each other along the axial direction, and the two cannot rotate relative to each other. In addition to being able to move along the axial direction of the slide groove 4-11, there is a certain lateral gap between the two sides of the slider 4-12 and the main support 4-1, so that the slider 4-12 can move within a certain range in the direction perpendicular to the slide groove 4-11; when the test tape segment is not rolled, the movable guide roller 4-9 stays in the initial position, at which time the slider 4-12 is located at one end of the boss 4-16, and the slider 4-12 is not in contact with the inclined surface; at this time, the first roller body component 4-9a and the second roller body component 4-9b in the movable guide roller 4-9 are at a maximum distance from each other under the elastic action of the elastic sheet 4-9h, and the bending arc of the elastic sheet 4-9h is the smallest (the elastic sheet 4-9h is in a straight state or a slightly convex state at this time); when the movable guide roller 4-9 needs to roll the test tape segment, the movable guide roller driving member 4-15 drives the movable guide roller 4-9 to move, and the movable guide roller 4-9 first moves in the direction of the fixed guide roller 4-10, and then moves in this During the process, when the inner side of the slider 4-12 moves along the inclined surface to the boss 4-16, the sliders 4-12 on both sides will move closer to each other by a certain distance, thereby driving the first roller assembly 4-9a and the second roller assembly 4-9b to move closer to each other. When the first roller assembly 4-9a and the second roller assembly 4-9b move closer to each other, they will form an extrusion force on the two ends of the elastic sheet 4-9h, so that the middle part of the elastic sheet 4-9h bulges outward, thereby driving the rubber layer 4-9i to move outward. Bulging; the bulging of the rubber layer 4-9i can increase the pressure on the tape 4-6, and accompanied by the rolling of the movable guide roller 4-9 on the test tape section, it can effectively improve the rolling effect of the tape 4-6, so that the tape 4-6 can be firmly bonded to the paint surface of the wheel hub to ensure the effectiveness of the test; after the movable guide roller 4-9 completes the rolling of the tape 4-6, the movable guide roller 4-9 returns to the initial position, and the elastic sheet 4-9h on the movable guide roller 4-9 returns to the initial deformation state.

[0048] Among them, the cross section of the slider 4-12 is in the shape of an I.

[0049] In this embodiment, the elastic sheet 4-9h is made of spring steel.

[0050] In this embodiment, the movable guide roller driving member 4-15 is an electric cylinder, a first connecting bracket 4-13 is provided on the main bracket 4-1, a second connecting bracket 4-14 is provided on the slider 4-12, the cylinder body of the electric cylinder is rotatably connected to the first connecting bracket 4-13, and the front end of the telescopic rod of the electric cylinder is rotatably connected to the second connecting bracket 4-14.

[0051] A wheel hub detection method comprises the following specific steps:

[0052] Step 1: Select a flat surface on the wheel hub surface as the test surface and draw a grid on the paint film on the test surface;

[0053] Step 2: Place the wheel hub to be tested on the wheel hub placement table 2 with the test surface facing upwards, move the tape component 4 to the top of the test surface, and then drive the tape component 4 down through the lifting drive device 7 to make the test tape segment flush with the test surface on the wheel hub; drive the movable guide roller 4-9 to move through the movable guide roller driving member 4-15, the movable guide roller 4-9 first moves from the initial position toward the fixed guide roller 4-10 and then returns to the initial position, and in the process of the movable guide roller 4-9 moving toward the fixed guide roller 4-10, the inner side of the slider 4-12 moves along the inclined surface to the boss 4-16, so that the first roller body assembly 4-9a and the second roller body assembly 4-9b are close to each other so that the middle part of the elastic sheet 4-9h is bent toward the outside of the movable guide roller 4-9; apply rolling pressure to the test tape segment through the movement of the movable guide roller 4-9 to make the test tape 4-6 adhere to the test surface;

[0054] Step 3: The lifting drive device 7 drives the tape component 4 to rise so that the test tape segment is separated from the test surface on the wheel hub;

[0055] Step 4: Move the tape component 4 to the top of the backlight source 3 so that the light generated by the backlight source 3 is directed to the test tape segment, and the test tape segment is photographed by cameras 4-8 to obtain a test image; after obtaining the test image, the adhesion effect of the paint film is judged by detecting the area ratio of the light-transmitting area to the non-light-transmitting area in the test image.

[0056] In step 4, the test image is analyzed by visual inspection software, and the areas and ratios of the light-transmitting area and the non-light-transmitting area are automatically identified and calculated by the visual inspection software.

[0057] If the area ratio of the light-transmitting area to the non-light-transmitting area is larger, it means that the paint peeling area is smaller and the adhesion of the paint film is better; conversely, if the area ratio of the light-transmitting area to the non-light-transmitting area is smaller, it means that the paint peeling area is larger and the adhesion of the paint film is worse.

[0058] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A wheel hub detection device, characterized in that: It includes a lifting drive device, a tape component connected to the lifting drive device, and a hub placement table. The tape component includes a main frame, a winding motor, and a release motor. The main frame is provided with a release reel, a winding reel, a fixed guide roller, and a movable guide roller. The tape is wound on the release reel, and one end of the tape is connected to the winding reel after passing the movable guide roller and the fixed guide roller; the release reel is connected to the release motor, and the winding reel is connected to the winding motor; the tape located between the fixed guide roller and the movable guide roller is a test tape segment; the adhesive surface on the test tape segment faces downward; the main frame is provided with a movable guide roller driving member for driving the movable guide roller to move horizontally; the main frame is provided with a camera, and the camera is located above the test tape segment; The machine also includes a frame and a backlight source, wherein the backlight source is located on one side of the hub placement table, a guide rail is arranged on the top of the frame, a moving seat is slidably connected to the guide rail, and a lifting drive device is arranged on the moving seat; a translation drive mechanism is arranged between the moving seat and the frame; and the tape component is driven to move between the top of the hub placement table and the top of the backlight source by the translation drive mechanism; The main frame is symmetrically provided with slide grooves on both sides, and sliders are slidably connected in the slide grooves on both sides, and both ends of the movable guide roller are rotatably connected to the sliders respectively; the movable guide roller driving member is connected to the slider and drives the slider to move in the slide groove; The movable guide roller comprises a first roller assembly and a second roller assembly. One end of the first roller assembly and the second roller assembly are both provided with an ear shaft, the other end of the first roller assembly is provided with a guide body, the other end of the second roller assembly is provided with a guide groove matched with the guide body, the guide body and the guide groove are slidably matched, and the first roller assembly and the second roller assembly are coaxially arranged; the ear shaft is connected to the slider; A first fixing ring is provided on the first roller assembly, a second fixing ring is provided on the second roller assembly, a plurality of elastic sheets are provided between the first fixing ring and the second fixing ring, and the elastic sheets are arranged in a circular array on the periphery of the first roller assembly and the second roller assembly; a rubber layer is provided on the periphery of the elastic sheets; A boss corresponding to the slider is arranged on the inner side of the main frame, and the boss is arranged along the length direction of the slide groove; an inclined surface is arranged on the end of the boss away from the fixed guide roller; when the inner side of the slider moves along the inclined surface to the boss, the first roller body assembly and the second roller body assembly approach each other so that the middle part of the elastic sheet protrudes toward the outer side of the movable guide roller; The detection method of the wheel hub detection device comprises the following specific steps: Step 1: Select a flat surface on the wheel hub surface as the test surface and draw a grid on the paint film on the test surface; Step 2: Place the wheel hub to be tested on the wheel hub placement table with the test surface facing upward, move the tape component to the top of the test surface, and then drive the tape component down through the lifting drive device to make the test tape segment flush with the test surface on the wheel hub; drive the movable guide roller to move through the movable guide roller drive member, the movable guide roller first moves from the initial position toward the fixed guide roller and then returns to the initial position, and in the process of the movable guide roller moving toward the fixed guide roller, the inner side of the slider moves along the inclined surface to the boss, so that the first roller body assembly and the second roller body assembly are close to each other, so that the middle part of the elastic sheet bends toward the outer side of the movable guide roller; apply rolling pressure to the test tape segment through the movement of the movable guide roller to make the test tape adhere to the test surface; Step 3: The lifting drive device drives the tape component to rise so that the test tape segment is separated from the test surface on the wheel hub; Step 4: Move the tape component to the top of the backlight source so that the light generated by the backlight source is directed to the test tape segment, and photograph the test tape segment with a camera to obtain a test image; after obtaining the test image, determine the adhesion effect of the paint film by detecting the area ratio of the light-transmitting area to the non-light-transmitting area in the test image.

2. A wheel hub detection device according to claim 1, characterized in that: The translation drive mechanism comprises a translation drive motor arranged on the moving seat, a rack arranged on the frame, the rack is parallel to the guide rail, the translation drive motor is connected with a gear, and the gear is meshed with the rack.

3. A wheel hub detection device according to claim 1, characterized in that: The cross section of the slider is in the shape of an I.

4. A wheel hub detection device according to claim 1, characterized in that: The movable guide roller driving member is an electric cylinder, the main body bracket is provided with a first connecting bracket, the slider is provided with a second connecting bracket, the cylinder body of the electric cylinder is rotatably connected to the first connecting bracket, and the front end of the telescopic rod of the electric cylinder is rotatably connected to the second connecting bracket.

5. A wheel hub detection device according to claim 1, characterized in that: The elastic sheet is made of spring steel.

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