Tire testing equipment

Abstract

The present disclosure relates to the technical field of tire detection, and provides a tire detection device, including a conveying assembly, a clamping assembly and a collection assembly. The conveying assembly is used to convey the tire to be tested. The clamping assembly is arranged at the tire detection station, and includes a pair of symmetrically arranged clamping members; each clamping member includes two swing arms; the outer end of each swing arm is rotatably connected to a clamping roller, so as to be clamped with the pair of clamping members to the tire to be tested until it is in contact with the surface of the tire to be tested; wherein, at least one clamping roller is driven to rotate to drive the tire to be tested to rotate. The collection assembly includes a plurality of first image collectors and a second collection member; the plurality of first image collectors are arranged corresponding to the outer surface of the tire to be tested; the second collection member includes at least one second image collector that can be moved to be inserted into the tire to perform surface detection on the rotating tire. The clamping member can hold the tire tightly to cause the tire to be tested to deform, and the actively rotating clamping roller drives the tire to be tested to rotate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of tire detection, and in particular to a tire detection device. Background Art

[0002] Tires are circular, elastic rubber products that roll against the ground and are installed on various vehicles and machinery. Tires are often used in complex and harsh conditions, enduring various deformations, loads, forces, and high and low temperature conditions while driving. Therefore, they must possess high load-bearing, traction, and cushioning properties.

[0003] In reality, tires require various quality inspections after production, such as those for cracks, missing glue, scratches, bubbles, and other surface defects that affect product quality. Related art inspection techniques typically involve placing the tire on a testing platform, then subjecting it to compression using a compression device (a cross, a Pozidrivia, or a disc, etc.), causing it to deform, and then inspecting the deformed tire's appearance. However, existing tire surface inspection equipment suffers from the following issues:

[0004] 1. Most tires are tested in a stationary state after being squeezed, which cannot reflect the tire's state during operation, resulting in poor testing results;

[0005] 2. Although some equipment can cause tire deformation and rotation, the equipment structure is complex and the operation is cumbersome, resulting in low detection efficiency. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide a tire testing device to solve the problems in the related art.

[0007] A first aspect of the present disclosure provides a tire testing device, comprising:

[0008] A conveying assembly, configured to convey the tire to be tested along a predetermined path, wherein the predetermined path includes a tire testing station;

[0009] A clamping assembly is provided at the tire testing station, comprising a pair of symmetrically arranged clamping members located above the conveying assembly; each clamping member comprises at least two swing arms connected in a linked manner; at least two of the swing arms, when driven to swing, perform a clamping / loosening action toward the tire to be tested; the outer end of each swing arm is rotatably connected to a clamping roller, so as to be clamped with the pair of clamping members around the tire to be tested until it abuts against the surface of the tire to be tested; wherein at least one of the clamping rollers is driven to rotate to drive the tire to be tested to rotate;

[0010] The acquisition component includes a plurality of first image collectors and a second acquisition member; the plurality of first image collectors are arranged corresponding to the outer surface of the tire to be tested; the second acquisition member is arranged between a pair of the clamping members and includes at least one second image collector that can be moved to be inserted into the tire to perform surface detection on the rotating tire.

[0011] In an embodiment of the first aspect, the second acquisition component further includes at least one spreading component, which is arranged corresponding to the second image collector; the spreading component includes two spreading parts that are driven to move closer or farther away, so as to spread the sub-opening of the tire to be tested when moving away, so as to allow the second image collector to be inserted into the tire to be tested to capture images of the inner surface of the tire to be tested.

[0012] In an embodiment of the first aspect, each of the support members includes a connecting tooth portion and a support portion rotatably connected to the connecting tooth portion; the connecting tooth portions of the two support members are engaged, wherein at least one of the connecting tooth portions is driven to rotate so that the support portions of the two support members move away from each other.

[0013] In an embodiment of the first aspect, the expansion member is implemented as a pair; and the second image collector is disposed between the pair of expansion members.

[0014] In an embodiment of the first aspect, the second acquisition component further includes a second connector; and a plurality of second image collectors are arranged on the surface of the second connector at intervals along the circumference of the second connector.

[0015] In an embodiment of the first aspect, a driving tooth portion is provided at the inner end of each of the swing arms; the driving tooth portions of the two swing arms on the same clamping member are engaged to link the two swing arms.

[0016] In an embodiment of the first aspect, one of the two clamping rollers of each clamping member forms a concave area in the middle, and the other forms a convex area in the middle; one of each two adjacent clamping rollers among the four clamping rollers forms a concave area in the middle, and the other forms a convex area in the middle; and / or, at least one of the clamping rollers in each clamping member is driven and arranged to rotate.

[0017] In an embodiment of the first aspect, a conveying assembly is further included; the conveying assembly includes a first conveying frame, the first conveying frame includes a first outlet, and one end of the conveying assembly is arranged corresponding to the first outlet; the tire testing equipment also includes a centering assembly arranged on the first conveying frame and close to the first outlet, so that the tire to be tested on the first conveying frame is aligned with the conveying assembly.

[0018] In an embodiment of the first aspect, the centering assembly includes a second support frame and two centering members; the second support frame is arranged on the first conveying frame, and the two centering members are arranged on the second support frame with an adjustable distance between them; and / or, the conveying assembly also includes a second conveying frame, which is arranged corresponding to the transmission assembly to receive the inspected tires.

[0019] In an embodiment of the first aspect, the centering assembly also includes a linkage mechanism; the linkage mechanism includes a linkage plate, two linkage rods and a fourth driving member; the middle part of the linkage plate is hinged to the second support frame and is located between the two centering members; one end of each linkage rod is hinged to one of the centering members, and the two ends of the linkage plate are hinged to the other end of one of the centering members; the fourth driving member is arranged on the second support frame and is driven and connected to one of the centering members or the linkage plate.

[0020] As described above, the present disclosure provides a tire testing device, comprising a conveying assembly, a clamping assembly, and a collection assembly. The conveying assembly is used to convey the tire to be tested along a predetermined path, wherein the predetermined path includes a tire testing station. The clamping assembly is arranged at the tire testing station and includes a pair of clamping members symmetrically arranged and arranged above the conveying assembly; each clamping member includes at least two swing arms connected in a linkage manner; at least two of the swing arms, when driven to swing, perform a clamping / loosening action toward the tire to be tested; the outer end of each swing arm is rotatably connected to a clamping roller, so as to be clamped with the pair of clamping members to the tire to be tested until it abuts against the surface of the tire to be tested; wherein at least one of the clamping rollers is driven to rotate to drive the tire to be tested to rotate. The collection assembly includes a plurality of first image collectors and a second collection member; the plurality of first image collectors are arranged corresponding to the outer surface of the tire to be tested; the second collection member is arranged between the pair of clamping members and includes at least one second image collector that can be moved to be inserted into the tire to perform surface testing on the rotating tire. The advantage of this arrangement is that the two clamping members can not only clamp the tire to deform it, facilitating detection of tread cracks, but also drive the tire to rotate via the actively rotating clamping rollers, enabling the acquisition member to fully capture image information of both the tire's exterior and interior surfaces, thereby improving tire inspection accuracy. Furthermore, the swing arm can swing to clamp tires of varying sizes, enhancing the applicability of the tire inspection equipment and improving its efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : is a schematic structural diagram of a tire detection device according to an embodiment of the present disclosure;

[0022] Figure 2FIG is a partial structural diagram of a tire detection device according to an embodiment of the present disclosure;

[0023] Figure 3 : is a schematic structural diagram of a transmission component in an embodiment of the present disclosure;

[0024] Figure 4 : is a schematic cross-sectional view of the structure of the clamping assembly in an embodiment of the present disclosure;

[0025] Figure 5 The example shows a schematic structural diagram of another embodiment of the clamping assembly in the present disclosure;

[0026] Figure 6 FIG is a schematic diagram showing the structure of the acquisition component and the tire to be tested in the embodiment of the present disclosure;

[0027] Figure 7 : is a structural diagram of the movement mode of the second collecting component in an embodiment of the present disclosure;

[0028] Figure 8 , which is a structural diagram of the movement mode of the first image collector in an embodiment of the present disclosure;

[0029] Figure 9 : is a schematic structural diagram of the second collecting component in an embodiment of the present disclosure;

[0030] Figure 10 : is a cross-sectional schematic diagram of the second collecting member in an embodiment of the present disclosure;

[0031] Figure 11 FIG is a schematic diagram showing a structure in which the acquisition components are implemented as a pair;

[0032] Figure 12 , which is a schematic diagram of the separate structure of a pair of support members;

[0033] Figure 13 FIG is a schematic cross-sectional view showing that the acquisition assembly is implemented as a pair;

[0034] Figure 14 FIG is a structural diagram of another embodiment of the support member;

[0035] Figure 15 Shown in the figure is a schematic structural diagram of the centering component in an embodiment of the present disclosure.

[0036] Reference numerals:

[0037] 10. Frame;

[0038] 100, conveying assembly; 110, first support frame; 120, conveyor belt unit; 130, first telescopic member; 140, supporting roller;

[0039] 200, clamping assembly; 210, clamping member; 211, swing arm; 2111, driving gear; 212, clamping roller; 213, first driving member; 214, second driving member;

[0040] 300, acquisition component; 310, first image acquisition device; 311, third moving member; 312, laser rangefinder; 320, second acquisition component; 321, second image acquisition device; 322, first moving member; 323, second moving member; 324, expansion member; 3241, expansion member; 32411, connecting tooth portion; 32412, expansion portion; 32413, driven portion; 3242, bidirectional ball screw; 3243, guide member; 32431, slide rail; 32432, slider; 325, second connector; 326, third driving member; 327, second telescopic member; 328, linkage frame; 3281, connecting plate; 3282, connecting shaft;

[0041] 400, conveying assembly; 410, first conveying frame; 411, first inlet; 412, first outlet; 420, centering assembly; 421, second support frame; 422, centering member; 423, linkage mechanism; 4231, linkage plate; 4232, linkage rod; 4233, fourth driving member; 430, second conveying frame. DETAILED DESCRIPTION

[0042] The following describes the embodiments of the present disclosure through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present disclosure from the information disclosed in this disclosure. The present disclosure can also be implemented or applied through different specific embodiments. The details of the present disclosure can also be modified or changed according to different viewpoints and application modules without departing from the spirit of the present disclosure. It should be noted that the embodiments and features in the embodiments of the present disclosure can be combined with each other unless there is a conflict.

[0043] The following is a detailed description of the embodiments of the present disclosure with reference to the accompanying drawings so that those skilled in the art can easily implement the present disclosure. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0044] Throughout the present disclosure, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or a group of embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, and features of different embodiments or examples, as described in the present disclosure, without conflicting requirements.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this disclosure, "a group" means two or more, unless otherwise specifically defined.

[0046] In order to clearly describe the present disclosure, components not related to the description are omitted, and the same or similar components throughout the specification are denoted by the same reference numerals.

[0047] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0048] Although the terms first, second, etc. are used in this document to represent various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are represented. Furthermore, as used in this document, the singular forms "one," "an," and "the" are intended to also include the plural forms, unless there is a contrary indication in the context. It should be further understood that the terms "comprise" and "include" indicate the presence of the described features, steps, operations, elements, modules, projects, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or a group of other features, steps, operations, elements, modules, projects, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B, and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0049] The technical terms used herein are intended only to refer to specific embodiments and are not intended to limit the present disclosure. The singular form used herein also includes the plural form unless the statement explicitly indicates otherwise. The term "comprising" as used in this specification is intended to specify specific features, regions, integers, steps, operations, elements, and / or components and does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and / or components.

[0050] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current message. Unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0051] Tires are circular, elastic rubber products that roll against the ground and are installed on various vehicles and machinery. Tires are often used in complex and harsh conditions, enduring various deformations, loads, forces, and high and low temperature conditions while driving. Therefore, they must possess high load-bearing, traction, and cushioning properties.

[0052] In reality, tires require various quality inspections after production, such as those for cracks on the tire surface, which can affect product quality. Existing inspection techniques typically involve placing the tire on a testing platform, then subjecting it to compression using a compression device (a cross, a Pozidrivia, or a disc, etc.), causing it to deform. The deformed tire is then inspected for appearance. However, existing tire surface inspection equipment suffers from the following issues:

[0053] 1. Most tires are tested in a stationary state after being squeezed, which cannot reflect the tire's state during operation, resulting in poor testing results;

[0054] 2. Although some equipment can cause tire deformation and rotation, the equipment structure is complex and the operation is cumbersome, resulting in low detection efficiency.

[0055] To address the above issues, the two clamping members disclosed in the present invention can not only clamp the tire to deform it, thereby facilitating detection of cracks on the tread, but also drive the tire to rotate via actively rotating clamping rollers, enabling the collection member to fully capture image information of both the tire's outer and inner surfaces, thereby improving tire inspection accuracy. Furthermore, the swing arm can swing to clamp tires of varying sizes, thereby increasing the applicability of the tire inspection equipment and improving tire inspection efficiency.

[0056] Figure 1] is a schematic structural diagram of a tire detection device in an embodiment of the present disclosure. Figure 2 FIG. 1 is a partial structural diagram of a tire detection device according to an embodiment of the present disclosure. Figure 4 The figure shows a schematic cross-sectional view of the structure of the clamping assembly in the embodiment of the present disclosure. Figure 1 、 Figure 2 and Figure 4 In the example, the tire detection device includes a transmission component 100 , a clamping component 200 and a collection component 300 .

[0057] The conveyor assembly 100 is used to convey the tire to be tested along a predetermined path, wherein the predetermined path includes a tire testing station. It is understood that the tire position can be fed back by a device such as a photoelectric device to accurately convey the tire to be tested to the tire testing station.

[0058] The clamping assembly 200 is arranged at the tire testing station, and includes a pair of clamping members 210 arranged symmetrically and located above the conveying assembly 100; each of the clamping members 210 includes at least two swing arms 211 connected in a linkage manner; when the at least two swing arms 211 are driven to swing, they perform a clamping / loosening action toward the tire to be tested; the outer end of each swing arm 211 is rotatably connected to a clamping roller 212, so as to be clamped to the tire to be tested along with the pair of clamping members 210 until it is in encircling contact with the surface of the tire to be tested; wherein, at least one of the clamping rollers 212 is used to be driven to rotate to drive the tire to be tested to rotate.

[0059] The acquisition assembly 300 includes multiple first image collectors 310 and second acquisition components 320; the multiple first image collectors 310 are arranged corresponding to the outer surface of the tire to be tested; the second acquisition component 320 is arranged between a pair of the clamping components 210, and includes at least one second image collector 321 that can be moved to be inserted into the tire to perform surface detection on the rotating tire.

[0060] The advantage of this arrangement is that the two clamping members 210 can not only clamp the tire to deform it, facilitating detection of tread cracks, but also drive the tire to rotate via the actively rotating clamping roller 212, enabling the acquisition assembly 300 to fully capture image information of both the tire's exterior and interior surfaces, thereby improving tire testing accuracy. Furthermore, the swing arm 211 can swing to clamp tires of varying sizes, enhancing the applicability and efficiency of the tire testing equipment.

[0061] For example, the tire testing device includes a frame 10 for carrying various components. Each component is bolted to a preset position of the frame 10 to meet the above production requirements.

[0062] Figure 3 The diagram in FIG is a schematic diagram of the structure of the transmission component in the embodiment of the present disclosure. Figure 3 In this example, the conveyor assembly 100 includes a first support frame 110, a conveyor belt unit 120, and at least one first telescopic member 130. The conveyor belt unit 120 is movably mounted on top of the first support frame 110. The first telescopic member 130 is vertically mounted with one end fixedly connected to the first support frame 110 and the other end fixedly connected to the conveyor belt unit 120, so as to drive the conveyor belt unit 120 to move upward and downward through its telescopic movement.

[0063] Illustratively, the conveyor belt unit 120 includes a conveyor belt, a pair of transmission rollers, and a motor for driving the transmission rollers. Illustratively, the first telescopic member 130 is implemented as a plurality of members. The plurality of first telescopic members 130 are evenly distributed between the first support frame 110 and the conveyor belt unit 120 to ensure stability during the raising and lowering of the conveyor belt unit 120. Illustratively, the first telescopic member 130 is implemented as an oil cylinder or a pneumatic cylinder.

[0064] Those skilled in the art will appreciate that, after the clamping assembly 200 clamps the tire to be tested, the conveyor unit 120 descends to a designated position to avoid damage to the tire due to contact with the subsequently rotating tire to be tested.

[0065] exist Figure 3 In this example, the conveyor assembly 100 further includes a supporting member. The supporting member includes a plurality of supporting rollers 140, which are evenly distributed along the horizontal circumference of the first support frame 110 and are at the same height as the conveyor belt unit 120. It will be appreciated that when the width of the conveyor belt unit 120 is smaller than the diameter of the tire being tested, the supporting member can support the portion of the tire being tested that is not in contact with the conveyor belt unit 120, thereby improving the stability of the tire being tested.

[0066] exist Figure 4 In this example, each clamping member 210 further includes a first driving member 213. For example, a driving tooth portion 2111 is provided at the inner end of each swing arm 211. The driving tooth portions 2111 of the two swing arms 211 on the same clamping member 210 mesh with each other. The first driving member 213 is coaxially fixedly connected to the driving tooth portion 2111 on one of the swing arms 211, so that the two swing arms 211 can be linked when the first driving member 213 is in operation. For example, the driving tooth portions 2111 are implemented as a plurality of straight teeth or helical teeth.

[0067] exist Figure 4In this example, each clamping member 210 further includes a second driving member 214, which is drivingly connected to one of the clamping rollers 212. For example, the second driving member 214 is disposed on the top wall of the swing arm 211, with its output end extending downward through the swing arm 211 and coaxially fixedly connected to the clamping roller 212. In other words, the second driving member 214 is disposed together with the swing arm 211, rather than being separately disposed, thus saving space.

[0068] exist Figure 4 In this example, a concave area is formed in the middle of each clamping roller 212. Those skilled in the art will appreciate that when the clamping roller 212 contacts the tire under test, the upper and lower edges of the tire abut against the larger diameter portion of the clamping roller 212. The deformation area then provides deformation space for the compressed portion of the tire's sidewall under test. Preferably, the top and bottom diameters of the clamping roller 212 are identical, further enhancing the aforementioned effect.

[0069] Figure 5 The example is a schematic structural diagram of another embodiment of the clamping assembly in the present disclosure. Figure 5 In this example, one of the two clamping rollers 212 of each clamping member 210 has a concave portion formed in the middle, and the other has a convex portion formed in the middle. One of each two adjacent clamping rollers 212 of the four clamping rollers 212 has a concave portion formed in the middle, and the other has a convex portion formed in the middle.

[0070] It is understood by those skilled in the art that when the tire to be tested is rotating, its sidewall has the following shapes:

[0071] 1. The portion of the tire wall corresponding to the clamping roller 212 forming the concave area on the tire to be tested is squeezed until it protrudes outward into the concave area (conforming to or not conforming to the wall surface of the concave area);

[0072] 2. The portion of the tire wall of the tire to be tested that contacts the clamping roller 212 forming the convex area is squeezed inwardly to form a shape that fits the convex area.

[0073] For example, the area on the tire to be tested corresponding to the concave region is referred to as the convex wall portion, which includes a first outer wall and a first inner wall. The area on the tire to be tested corresponding to the convex region is referred to as the concave wall portion, which includes a second outer wall and a second inner wall. Preferably, the acquisition areas of the plurality of first image collectors 310 are positioned corresponding to the first outer wall of the convex wall portion, thereby promptly acquiring tire wall image information at the convex portion of the tire's outer wall. The acquisition areas of the second image collectors 321 are positioned corresponding to the second inner wall of the concave wall portion, thereby promptly acquiring tire wall image information at the concave portion of the tire's inner wall. This improves the effectiveness of tire crack detection.

[0074] The advantage of this setup is that, if a crack exists in the tire sidewall, it will be visible not only when the tire sidewall is convex, but also when it is concave. Therefore, this setup allows the tire to be inspected in both deformation states, making the inspection more comprehensive and improving the effectiveness of tire testing.

[0075] In other embodiments, one of the clamping rollers 212 in one clamping member 210 has a concave center, another clamping roller 212 has a convex center, and both clamping rollers 212 in another clamping member 210 have concave centers. In this way, crack detection on the tire's outer wall is achieved through compression by the three concave clamping rollers 212, while crack detection on the tire's inner wall is achieved through compression by the single convex clamping roller 212. This arrangement offers the advantage of enabling further detection of cracks on both the inner and outer tire walls while also ensuring the stability of the tire during rotation through the three concave clamping rollers 212.

[0076] Preferably, the acquisition area of ​​the second image collector 321 is arranged to correspond to the clamping roller 212 forming the convex area, so as to timely acquire the tire wall image information of the concave part of the tire wall, thereby improving the accuracy of tire crack detection.

[0077] Figure 6 The diagram in FIG is a schematic diagram showing the structure of the acquisition component and the tire to be tested in the embodiment of the present disclosure. Figure 6 In this example, the dashed line shows a cross-section of the tire under test. One of the multiple first image collectors 310 is positioned toward the upper surface of the tire under test, another toward the lower surface of the tire under test, and yet another toward the tread surface of the tire under test that contacts the ground. The second image collector 321 can be driven to be positioned toward the tire under test. It will be appreciated that the placement of these collectors enables relatively complete image capture of the tire's surface as it rotates, thereby improving the accuracy of tire surface crack detection.

[0078] Figure 7 The diagram in FIG is a schematic diagram showing the movement of the second collecting member 320 in the embodiment of the present disclosure. Figure 7 In this example, the second collection member 320 is disposed on a second movable unit. The second movable unit includes a first movable member 322 that moves vertically and a second movable member 323 that moves horizontally. The second collection member 320 is disposed on the first movable member 322, which is disposed on the second movable member 323, which is disposed on the frame.

[0079] exist Figure 7 In this example, the first movable member 322 and the second movable member 323 are both implemented as electric cylinders. Those skilled in the art will appreciate that when the tire to be tested is not in the tire inspection station on the conveyor assembly, the second acquisition member 320 is located directly above the tire inspection station and does not contact the tire to be tested when in the tire inspection station. When the tire to be tested moves to the tire inspection station, the second acquisition member 320 is driven by the first movable member 322 to align the second image collector 321 with the sub-opening of the tire to be tested. It is then driven by the second movable member 323 to insert the second image collector 321 into the sub-opening of the tire to be tested, thereby capturing an image of the inner surface of the tire to be tested.

[0080] In other embodiments, the first moving member 322 and the second moving member 323 may also be implemented as oil cylinders or air cylinders.

[0081] Exemplarily, the first image collector 310 and the second image collector 321 are implemented as depth cameras.

[0082] Figure 8 The figure shows a schematic diagram of the structure of the movement mode of the first image collector in the embodiment of the present disclosure. Figure 8 In this example, the first image collector 310 is provided on a first moving unit, and the first moving unit includes a third moving member 311 that moves in a horizontal direction. For example, the first image collector 310 is provided in a protective box, and the protective box is provided on the third moving member 311, and the third moving member 311 is provided on the frame 10. Figure 8 In this example, the third moving member 311 is implemented as an electric cylinder.

[0083] As a further example, a laser rangefinder 312 is also provided within the protective box. For example, the laser rangefinder 312 is electrically connected to an external control device, which is in turn electrically connected to the third movable member 311. It is understood that because tires of varying sizes have varying inner diameters, the required distances for the first image collector 310 to move also vary. Therefore, the first image collector 310 can be moved to a designated position under the measurement of the laser rangefinder 312 and the drive of the third movable member 311, thereby enhancing the applicability of the tire inspection device.

[0084] Exemplarily, the driving modes of the plurality of first image collectors 310 are the same, so detailed description thereof is omitted here.

[0085] Figure 9 ] is a schematic structural diagram of the second collecting component in an embodiment of the present disclosure. Figure 10 The figure shows a cross-sectional view of the second collecting member in the embodiment of the present disclosure. Figure 9 and Figure 10 In the example, the second acquisition component 320 also includes at least one expansion component 324, which is arranged corresponding to the second image collector 321; the expansion component 324 includes two expansion parts 3241 that are driven to move closer or farther away, so as to expand the sub-opening of the tire to be tested when moving away, so that the second image collector 321 can be inserted into the tire to be tested to capture images of the inner surface of the tire to be tested.

[0086] Exemplarily, the second collecting member 320 further includes a second connecting body 325 , and at least one of the expanding members 324 is disposed on a side wall of the second connecting body 325 .

[0087] For example, each of the support members 3241 includes a connecting tooth portion 32411 and a support portion 32412 rotatably connected to the connecting tooth portion 32411. The connecting tooth portions 32411 of the two support members 3241 are engaged. At least one of the connecting tooth portions 32411 is driven to rotate so as to cause the two support members 3241 to swing in opposite directions. For example, in Figure 9 In the embodiment, the second collecting member 320 further includes a third driving member 326, which is drivingly connected to one of the connecting tooth portions 32411. Those skilled in the art will appreciate that when the third driving member 326 drives one of the connecting tooth portions 32411 to rotate, the connecting tooth portion 32411 drives the other connecting tooth portion 32411 to rotate, thereby moving the spreading portions 32412 of the two spreading members 3241 away from each other to spread the opening of the tire to be tested.

[0088] exist Figure 10In this example, a connecting rod is provided on the connecting tooth portion 32411, and the expansion portion 32412 is coaxially connected to the connecting rod. At least one bearing is provided between the expansion portion 32412 and the connecting rod. If the expansion portion 32412 and the connecting rod meet in a longer area, two or more bearings may be provided. For example, the connecting rod is detachably connected to the connecting tooth portion 32411. In other embodiments, the connecting rod is fixedly connected to the connecting tooth portion 32411.

[0089] exist Figure 10 In this example, the connecting tooth portion 32411 is provided with a plurality of teeth. The plurality of teeth are concentrated in a portion of the connecting tooth portion 32411 (e.g., an incomplete gear). The specific number of teeth provided is determined by the desired angle of the two spreading members 3241. In other words, the greater the desired angle of the two spreading members 3241, the greater the number of teeth on the connecting tooth portion 32411, and the wider the angular range of the arrangement of the plurality of teeth.

[0090] exist Figure 10 In the example, the second image collector 321 is implemented as a plurality of devices. The plurality of second image collectors 321 are distributed along the axial direction of the second connector 325 at intervals. For example, a portion of the second connector 325 is configured to be a shape that matches the cross-sectional shape of the tire, such as a circle. Further exemplarily, the sum of the acquisition areas of the plurality of second image collectors 321 is greater than the cross-sectional length of the tire to be tested. The advantage of the above setting is that it can avoid the situation where the detection accuracy is reduced due to the inability of the acquisition area to effectively cover the surface of the tire to be tested, thereby further improving the detection accuracy of the tire detection device. For example, in Figure 7 In this example, the dotted line shows the sum of the acquisition areas of the plurality of second image acquirers 321 .

[0091] Figure 11 FIG. 1 is a schematic structural diagram showing that the expansion members are implemented as a pair. Figure 12 FIG. 3 is a schematic diagram of a separate structure of a pair of expansion members 324 . Figure 13 , a schematic cross-sectional view of a pair of expansion members is shown.

[0092] exist Figure 11 、 Figure 12 and Figure 13 In this example, the second collecting member 320 further includes a second telescopic member 327, a linkage frame 328, and a second connector 325. The two spreading members 324 are implemented as two and operate synchronously; the two spreading members 324 are symmetrically arranged on opposite side walls of the second connector 325, and the second collector is located between the two spreading members 324 on the second connector 325.

[0093] Exemplarily, the linkage frame 328 includes two symmetrically arranged connecting plates 3281 and a connecting shaft 3282. Each end of the connecting shaft 3282 is fixedly connected to a connecting plate 3281, and the other end of the two connecting plates 3281 is fixedly connected to a connecting tooth portion 32411. One end of the second telescopic member 327 is hinged to the second connecting body 325, and the other end is hinged to the connecting shaft 3282. Therefore, when the second telescopic member 327 telescopically moves, the two connecting plates 3281 are driven to swing through the connecting shaft 3282, thereby driving the two opening members 3241 of the opening member 324 on the corresponding side to swing in the opposite direction, thereby opening the sub-mouth of the tire to be tested, so that the area where the second image collector 321 on the second connecting body 325 is located can enter the tire to be tested. Exemplarily, the second telescopic member 327 is implemented as an oil cylinder or a pneumatic cylinder.

[0094] In other embodiments, the second telescopic member 327 may also be replaced by a motor with two output ends, wherein the motor is fixedly connected to the second connecting body 325 , and each output end is coaxially fixedly connected to one of the connecting teeth 32411 on the supporting member 324 .

[0095] Figure 14 The diagram in FIG is a structural diagram of another embodiment of the support member. Figure 14 In this example, the expansion member 324 includes a vertically arranged and rotatable bidirectional ball screw 3242 (illustrated only as a schematic diagram), two expansion members 3241, and a guide member 3243. The two expansion members 3241 are respectively threaded onto one thread of the bidirectional ball screw 3242. Each expansion member 3241 includes a driven portion 32413 and an expansion portion 32412. The driven portion 32413 is threaded onto one thread of the bidirectional ball screw 3242, and the expansion portion 32412 is rotatably connected to the driven portion 32413. The guide member 3243 includes a slide rail 32431 arranged parallel to the bidirectional ball screw 3242 and two sliders 32432 slidably engaged with the slide rail 32431. Each slider 32432 is connected to the driven portion 32413 of the expansion member 3241. Those skilled in the art will appreciate that the rotation of the bidirectional ball screw 3242 can drive the two spreading members 3241 to move closer to or farther away in the vertical direction, thereby spreading the sub-opening of the tire to be tested when moving away from each other.

[0096] exist Figure 14 In this example, the number of the expansion members 324 is also two, and the two expansion members 324 are symmetrically arranged on two opposite side walls of the second connector 325. The structures of the two expansion members 324 are the same, so they will not be described in detail here.

[0097] exist Figure 14 In this example, the rotation of the two bidirectional ball screws 3242 can be driven by a synchronizer. For example, each bidirectional ball screw 3242 is provided with a driven synchronizer wheel, and the synchronizer is driven by a driving synchronizer wheel, and the synchronizer is respectively engaged with the two driven synchronizer wheels and the driving synchronizer wheel. Further for example, the synchronizer is implemented as a synchronous belt, and the driven synchronizer wheel and the driving synchronizer wheel are correspondingly implemented as synchronous belt pulleys. In other embodiments, the synchronizer can also be implemented as a chain, and the driven synchronizer wheel and the driving synchronizer wheel are correspondingly implemented as sprockets.

[0098] Figure 15 The diagram in FIG is a schematic diagram of the structure of the centering assembly in the embodiment of the present disclosure. Figure 1 and Figure 15 In this example, the tire testing equipment further includes a conveyor assembly 400. The conveyor assembly 400 includes a first conveyor frame 410, which includes a first inlet 411 and a first outlet 412. The first inlet 411 is for receiving the tire to be tested, and one end of the conveyor assembly 100 is positioned corresponding to the first outlet 412. The tire testing equipment further includes a centering assembly disposed on the first conveyor frame 410 and near the first outlet 412 to align the tire to be tested on the first conveyor frame 410 with the conveyor assembly 100.

[0099] Exemplarily, the centering assembly includes a second support frame 421 and two centering members 422. The second support frame 421 is provided on the first conveying frame 410, and the two centering members 422 are provided on the support frame with an adjustable distance therebetween.

[0100] Further exemplarily, the centering assembly also includes a linkage mechanism 423. The linkage mechanism 423 includes a linkage plate 4231, two linkage rods 4232 and a fourth driving member 4233. The middle portion of the linkage plate 4231 is hinged to the second support frame 421 and is located between the two centering members 422. One end of each linkage rod 4232 is hinged to one of the centering members 422, and both ends of the linkage plate 4231 are hinged to the other end of one of the centering members 422. The fourth driving member 4233 is provided on the second support frame 421 and is driven and connected to one of the centering members 422. It can be understood that when the centering member 422 driven by the fourth driving member 4233 moves inward / outward, the other centering member 422 also moves inward / outward under the drive of the linkage mechanism 423, thereby squeezing the tire to be tested to a predetermined position aligned with the conveying assembly 100. Figure 15 In an embodiment, the fourth driving member 4233 is implemented as an oil cylinder or a pneumatic cylinder.

[0101] In other embodiments, the fourth driving member 4233 may also be drivably connected to the linkage plate 4231. In this case, the fourth driving member 4233 is implemented as a motor to drive the linkage plate 4231 to rotate. In other embodiments, the linkage mechanism 423 may also be implemented as other structures that allow the distance between the two centering members 422 to be adjustable, such as a chain, a pull rope, or two fourth driving members 4233 each connected to a pair of centering members 422.

[0102] Back to Figure 1 In this example, the conveying assembly 400 further includes a second conveying frame 430 , which is disposed corresponding to the transmission assembly 100 to receive the inspected tire.

[0103] In summary, the present disclosure provides a tire testing device, comprising a conveying assembly, a clamping assembly, and a collection assembly. The conveying assembly is used to convey the tire to be tested along a predetermined path, wherein the predetermined path includes a tire testing station. The clamping assembly is arranged at the tire testing station and includes a pair of clamping members symmetrically arranged and arranged above the conveying assembly; each clamping member includes at least two swing arms connected in a linkage manner; at least two of the swing arms, when driven to swing, perform a clamping / loosening action toward the tire to be tested; the outer end of each swing arm is rotatably connected to a clamping roller, so as to be clamped with the pair of clamping members to the tire to be tested until it abuts against the surface of the tire to be tested; wherein at least one of the clamping rollers is driven to rotate to drive the tire to be tested to rotate. The collection assembly includes a plurality of first image collectors and a second collection member; the plurality of first image collectors are arranged corresponding to the outer surface of the tire to be tested; the second collection member is arranged between the pair of clamping members and includes at least one second image collector that can be moved to be inserted into the tire to perform surface testing on the rotating tire. The advantage of this arrangement is that the two clamping members can not only clamp the tire to deform it, facilitating detection of tread cracks, but also drive the tire to rotate via the actively rotating clamping rollers, enabling the acquisition member to fully capture image information of both the tire's exterior and interior surfaces, thereby improving tire inspection accuracy. Furthermore, the swing arm can swing to clamp tires of varying sizes, enhancing the applicability of the tire inspection equipment and improving its efficiency.

[0104] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, any equivalent modifications or alterations made by a person skilled in the art without departing from the spirit and technical concepts disclosed herein shall be encompassed by the scope of protection of this disclosure.

Claims

1. A tire testing device, characterized in that: include: A conveying assembly, configured to convey the tire to be tested along a predetermined path, wherein the predetermined path includes a tire testing station; A clamping assembly is provided at the tire testing station, comprising a pair of symmetrically arranged clamping members located above the conveying assembly; each clamping member comprises at least two swing arms connected in a linked manner; at least two of the swing arms, when driven to swing, perform a clamping / loosening action toward the tire to be tested; the outer end of each swing arm is rotatably connected to a clamping roller, so as to be clamped with the pair of clamping members around the tire to be tested until it abuts against the surface of the tire to be tested; wherein at least one of the clamping rollers is driven to rotate to drive the tire to be tested to rotate; The acquisition assembly includes a plurality of first image acquisition devices and a second acquisition member; the plurality of first image acquisition devices are arranged corresponding to the outer surface of the tire to be tested; the second acquisition member is arranged between the pair of clamping members and includes at least one second image acquisition device that can be moved to be inserted into the tire to perform inner surface inspection of the rotating tire; One of the two clamping rollers of each clamping member has a concave area formed in the middle, and the other has a convex area formed in the middle; one of each two adjacent clamping rollers of the four clamping rollers has a concave area formed in the middle, and the other has a convex area formed in the middle.

2. The tire testing device according to claim 1, characterized in that: The second acquisition component also includes at least one expansion component, which is arranged corresponding to the second image collector; the expansion component includes two expansion parts that are driven to move closer or farther away, so as to expand the sub-opening of the tire to be tested when moving away, so that the second image collector can be inserted into the tire to be tested to capture images of the inner surface of the tire to be tested.

3. The tire testing device according to claim 2, characterized in that: Each of the support members includes a connecting tooth portion and a support portion rotatably connected to the connecting tooth portion; the connecting tooth portions of the two support members are engaged, wherein at least one of the connecting tooth portions is driven to rotate so that the support portions of the two support members move away from each other.

4. The tire testing device according to claim 2, characterized in that: The expansion members are implemented as a pair; the second image collector is arranged between the pair of expansion members.

5. The tire testing device according to claim 1, characterized in that: The second acquisition component further includes a second connector; a plurality of the second image collectors are arranged on the surface of the second connector at intervals along the circumference of the second connector.

6. The tire testing device according to claim 1, wherein: The inner end of each swing arm is provided with a driving tooth portion; the driving teeth of the two swing arms on the same clamping member are meshed to link the two swing arms.

7. The tire testing device according to claim 1, characterized in that: At least one of the clamping rollers in each of the clamping members is driven to rotate.

8. The tire testing device according to claim 1, wherein: It also includes a conveying assembly; the conveying assembly includes a first conveying frame, the first conveying frame includes a first outlet, and one end of the conveying assembly is arranged corresponding to the first outlet; the tire testing equipment also includes a centering assembly arranged on the first conveying frame and close to the first outlet, so that the tire to be tested on the first conveying frame is aligned with the conveying assembly.

9. The tire testing device according to claim 8, characterized in that: The centering assembly includes a second support frame and two centering parts; the second support frame is arranged on the first conveying frame, and the two centering parts are arranged on the second support frame with an adjustable distance between them; and / or, the conveying assembly also includes a second conveying frame, which is arranged corresponding to the transmission assembly to receive the inspected tires.

10. The tire testing device according to claim 9, characterized in that: The centering assembly further includes a linkage mechanism; the linkage mechanism includes a linkage plate, two linkage rods, and a fourth driving member; the middle portion of the linkage plate is hinged to the second support frame and is located between the two centering members; one end of each linkage rod is hinged to one of the centering members, and both ends of the linkage plate are hinged to the other end of one of the centering members; The fourth driving member is disposed on the second supporting frame and is drivingly connected to one of the centering members or the linkage plate.

Images