Tire multi-shaft supporting mechanism and detection device thereof

Abstract

The invention relates to a tire multi-shaft supporting mechanism and a detection device thereof, and the tire multi-shaft supporting mechanism comprises a rack and a tensioning device which is installed on the rack, and the tensioning device radially moves from the inner ring of a tire to abut against the surface of the inner ring of the tire so as to fix the tire; the rotating device is used for driving the tires to rotate; the multiple tensioning shafts are matched with the clamp to complete implementation of various items such as supporting, fixing and driving of the tire, the occupied space of each piece of traditional equipment is reduced, and meanwhile the tire detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tire quality inspection, and particularly to a multi-axis support mechanism for tires and its detection device. Background Art

[0002] Automobile tires are important components of automobiles. During daily driving, the tires are in direct contact with the road surface and, together with the vehicle suspension, buffer the impact received during driving. The quality of the tires is directly related to the safety of the vehicle. Therefore, after the tire manufacturers complete the processing of the tires, several strict tests and quality inspections are required for the tires. Among them, checking whether there are defects such as cracks and bulges on the tire surface is a necessary inspection item.

[0003] According to Chinese Patent CN116124636A, a multi-side tread defect detection device for tires is disclosed. The device includes a test stand, on which a tire fixing mechanism, a tire rotating mechanism, an imaging device mounting head, and an imaging device position adjustment mechanism are provided. The tire is restricted to the horizontal plane by the tire fixing mechanism, and then the tire is driven by the tire rotating mechanism. Its structure is relatively bulky, occupies a large area, and the feeding is rather cumbersome, with low efficiency.

[0004] Therefore, it is necessary to develop a multi-axis support mechanism for tires and its detection device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-axis support mechanism for tires and its detection device with high efficiency and small occupied space.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A multi-axis support mechanism for tires, which includes:

[0007] A frame;

[0008] A tensioning device, installed on the frame, and the tensioning device radially moves inward of the tire to abut against the inner surface of the tire to fix the tire;

[0009] A rotating device, used to drive the tire to rotate.

[0010] Further, the tensioning device is equipped with a clamp, and the clamp is used to expand the inner wall of the tire.

[0011] Further, the tensioning device includes a plurality of movable tensioning shafts and a tensioning driving part. A transmission rod is arranged inside the tensioning shaft. The transmission rod is a ball screw spline shaft, one end of which is connected to the clamp, and the other end is connected to the tensioning driving part.

[0012] Further, the fixture includes a first fixture and a second fixture. The first fixture is fixedly installed at the end of the transmission rod. The second fixture is sleeved on the transmission rod. The first fixture moves synchronously with the transmission rod to change the distance between the first fixture and the second fixture.

[0013] Further, the tensioning drive part includes a tensioning motor, a first transmission gear and a second transmission gear driven by the tensioning motor. The first transmission gear and the second transmission gear are meshed with each other, and they respectively drive the tensioning shaft to move relatively or in opposite directions.

[0014] Further, the first transmission gear and the second transmission gear are respectively sleeved with a first transmission rod and a second transmission rod. The two ends of the first transmission rod and the second transmission rod are respectively connected to the first transmission gear, the second transmission gear and the tensioning shaft.

[0015] Further, abutting parts are provided at the opposite ends of the first fixture and the second fixture. The abutting parts are used for abutting and expanding the inner ring of the tire as the second fixture moves.

[0016] Further, the tensioning shafts are respectively a driving shaft and a driven shaft. One ends of the driving shaft and the driven shaft are sleeved with a connecting plate. The connecting plate is connected to the frame and a bearing is provided at the connection. The driving shaft and the driven shaft can both rotate around the bearing of the connecting plate as the center.

[0017] On the other hand, the present invention adopts the following technical solutions:

[0018] A detection device includes the above-mentioned multi-axis tire support mechanism. A detection device is provided above the multi-axis tire support mechanism. The detection device is used for scanning the tread and its two sides.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is a multi-axis tire support mechanism and its detection device, which has the characteristics of high efficiency and small occupied space. Through the cooperation of several tensioning shafts and fixtures, the implementation of various items such as supporting, fixing and driving the tire is completed, reducing the occupied space of each device and improving the detection efficiency of the tire at the same time. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, where:

[0021] Figure 1Schematic three - dimensional structure diagram of a multi - axis support mechanism for a tire of the present invention;

[0022] Figure 2 is Figure 1 Schematic structure diagram of the multi - axis support mechanism for the tire shown from another angle;

[0023] Figure 3 is Figure 1 Schematic partial structure diagram of the multi - axis support mechanism for the tire shown;

[0024] Figure 4 is Figure 1 Schematic structure diagram of the tensioning shaft and its tensioning drive part of the multi - axis support mechanism for the tire shown;

[0025] Figure 5 is Figure 1 Schematic structure diagram of the multi - axis support mechanism for the tire shown in the state of loading a tire;

[0026] In the figure: 1, frame; 2, tensioning device; 3, fixture; 4, rotating device; 5, inner tire ring; 21, tensioning shaft; 22, tensioning drive part; 23, connecting plate; 24, transmission rod; 211, driving shaft; 212, driven shaft; 221, tensioning motor; 222, first transmission gear; 223, second transmission gear; 224, first transmission rod; 225, second transmission rod; 31, first fixture; 32, second fixture; 33, abutting part; 34, clamping drive part; 341, first drive assembly; 342, second drive assembly; 3411, first drive motor; 3412, first drive wheel; 3421, second drive motor; 3422, second drive wheel; 41, rotating motor; 42, driven wheel. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0028] Please refer to Figures 1 to 5 , the present invention is a multi - axis support mechanism for a tire and its detection device, which includes a frame 1, a tensioning device 2 installed on the frame 1, a fixture 3 provided at the end of the tensioning device 2, a rotating device 4 for driving the tire to rotate, and a detection device.

[0029] Please refer to Figure 1, the frame 1 is used to install several above-mentioned devices, and a transmission device is provided at its bottom for driving to change the distance between this embodiment and the staff. This embodiment can be moved by a motor and a slide rail, or other transmission methods can be selected according to requirements.

[0030] Please refer to Figures 1 to 3 , the tensioning device 2 includes several tensioning shafts 21 and a tensioning driving part 22. The number of several tensioning shafts 21 is not less than one pair, which are respectively a driving shaft 211 and a driven shaft 212. One end of the driving shaft 211 and the driven shaft 212 is sleeved with a connecting plate 23. The connecting plate 23 is connected to the frame 1 and a bearing is provided at the connection. Both the driving shaft 211 and the driven shaft 212 can rotate around the bearing of the connecting plate 23. In this embodiment, the number of the driving shaft 211 and the driven shaft 212 is two pairs, and the driving shaft 211 is located above the driven shaft 212.

[0031] Please refer to Figure 3 , the tensioning driving part 22 includes a tensioning motor 221, a first transmission gear 222 and a second transmission gear 223 driven by the tensioning motor 221. The tensioning motor 221 is fixedly connected to the frame 1. The first transmission gear 222 and the second transmission gear 223 are respectively sleeved with a first transmission rod 224 and a second transmission rod 225. The first transmission rod 224 and the second transmission rod 225 are both fixed to the frame 1 through bearings. One end of the first transmission rod 224 is sleeved with the first transmission gear 222, and the other end is connected to the connecting plate 23 fixed to the driving shaft 21. One end of the second transmission rod 225 is sleeved with the second transmission gear 223, and the other end is connected to the connecting plate 23 fixed to the driven shaft 22. The first transmission gear 222 and the second transmission gear 223 are engaged. The tensioning motor 221 drives either the first transmission rod 224 or the second transmission rod 225 to rotate through a synchronous belt, and the other first transmission rod 224 or the second transmission rod 225 engaged therewith moves in the opposite direction, so that the four tensioning shafts 2 in this embodiment move radially outward from the inner ring area of the tire to abut against the surface of the inner tire 5, so as to achieve the effect of supporting and fixing the tire. In this embodiment, by abutting the tensioning shaft 2 against the surface of the inner tire 5, and at the same time according to different tires or different specifications of tires, the abutted surface of the tensioning shaft 2 is not limited to the inner tire 5, and can be other positions of the tire, as long as the tensioning shaft 2 can fix the tire.

[0032] Please refer to Figures 1 to 3, the driving shaft 211 and the driven shaft 212 both have a transmission rod 24, one end of the transmission rod 24 is connected to the fixture 3, and the other end is connected to the tensioning drive unit 22. The transmission rod 24 in the driving shaft 211 is a ball screw spline shaft, which is a prior art. When a driven nut-type ball screw assembly is combined with a rotating ball spline, the resulting configuration is generally called a ball screw spline. The shaft of the ball screw spline has threads and spline grooves along its length, and the threads and grooves intersect each other. The ball screw spline assembly restricts the linear movement of the ball screw nut and the ball spline nut. By driving the ball nut and the spline nut together or separately, three different types of motion can be generated, namely linear motion, spiral motion, and rotational motion.

[0033] Please see Figure 2 The clamps 3 are respectively sleeved on the ends of several tensioning shafts 2, including a first clamp 31 and a second clamp 32. The first clamp 31 is installed on the end of the transmission rod 24, and the second clamp 32 is sleeved on the transmission rod 24 as one end of a screw rod. The first clamp 31 can be driven by an external force to move along the transmission rod 24 toward the first clamp 31 or in the opposite direction. Secondly, the first clamp 31 and the second clamp 32 are provided with a supporting portion 33 at the opposite ends. The supporting portion 33 is used to support and expand the inner ring of the tire as the second clamp 32 moves.

[0034] Please see Figure 4 The clamp 3 also includes a clamping drive unit 34, which includes a first drive assembly 341 for driving the active shaft 211 to move and a second drive assembly 342 for driving the passive shaft 212 to move. The first drive assembly 341 includes a first drive motor 3411 and a first drive wheel 3412 sleeved on the transmission rod 24 in the active shaft 211. The first drive motor 3411 is fixed to the frame 1, and the first drive wheel 3412 is fixed to the connecting plate 23. The first drive motor 3411 and the first drive wheel 3412 are linked by a synchronous belt or other transmission parts. A driving motor 3411 drives the active shaft 211 to move linearly through the first driving wheel 3412. The second driving assembly 342 includes a second driving motor 3421 and a second driving wheel 3422 that is sleeved on the transmission rod 24 in the passive shaft 212. The second driving motor 3421 is fixed on the frame 1, and the second driving wheel 3422 is fixed on the connecting plate 23. The second driving motor 3421 and the second driving wheel 3422 are linked by a synchronous belt or other transmission parts. The second driving motor 3421 drives the passive shaft 212 to move linearly through the second driving wheel 3422.

[0035] Please see Figure 3The rotating device 4 includes a rotating motor 41 and a passive wheel 42 sleeved on the driving shaft 211. The rotating motor 41 is fixedly connected to the frame 1, and a pulley is provided at the end thereof. The pulley and the passive wheel 42 are on the same horizontal line and are linked by a synchronous belt. Different transmission methods can be selected according to needs, such as chains, belts, etc. The rotating motor 41 drives the passive wheel 42 to rotate the driving shaft 211.

[0036] A support frame (not shown) is installed on the upper surface of the frame 1, and the support frame extends upward from the upper surface of the frame 1. A detection device (not shown) is fixedly connected to the support frame. The detection device is a device for scanning and recording, such as a camera, a scanner and other detection equipment. The number of the detection devices changes according to demand. In this embodiment, the number of detection devices is three, which respectively detect both sides and the tread of the tire.

[0037] When a tire multi-axis support mechanism and its detection device of the present invention are used, the tire is hung on a plurality of tensioning shafts 2 by external forces such as manual or other transmission equipment, and the tensioning motor 221 drives the plurality of tensioning shafts 2 to diffuse outward from the inner ring area of ​​the tire to the surface against the inner ring of the tire through the first transmission gear 222 and the second transmission gear 223 to support and fix the tire. The first drive component 341 and the second drive component 342 respectively cooperate with the transmission rod 24 of the ball screw spline shaft through the first drive motor 3411 and the second drive wheel 3422 to make the plurality of tensioning shafts 2 move linearly, and at the same time, the second clamp 32 fixed at the end of the plurality of tensioning shafts 2 moves synchronously, and the distance between the first clamp 31 and the second clamp 32 is expanded and the inner ring of the tire is stretched to achieve the best shape for detecting the tire. After the tire is fixed, the passive wheel 42 sleeved on the tensioning shaft 2 is driven by the rotating motor 41, so that the tensioning shaft 2 can rotate, and the detection device detects the rotating tire.

[0038] The present invention is a tire multi-axis support mechanism and a detection device thereof, which has the characteristics of high efficiency and small space occupation. Through a plurality of tensioning shafts and clamps, the implementation of various projects such as supporting, fixing and driving the tire is completed, thereby reducing the space occupied by each device and improving the tire detection efficiency.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-axis support mechanism for a tire, characterized in that, It includes: A frame (1); A tensioning device (2), installed on the frame (1), the tensioning device (2) radially moves against the inner surface of the tire from the inner circle of the tire to fix the tire; A rotating device (5) for driving the tire to rotate.

2. The multi-axis support mechanism for a tire according to claim 1, characterized in that, The tensioning device (2) is equipped with a fixture (3), and the fixture (3) is used to expand the inner wall of the tire.

3. The multi-axis support mechanism for a tire according to claim 2, characterized in that The tensioning device (2) includes a number of movable tensioning shafts (21) and a tensioning drive part (22). A transmission rod (24) is arranged inside the tensioning shaft (21). The transmission rod (24) is a ball screw spline shaft, one end of which is connected to the fixture (3), and the other end is connected to the tensioning drive part (22).

4. The multi-axis support mechanism for a tire according to claim 3, characterized in that The fixture (3) includes a first fixture (31) and a second fixture (32). The first fixture (31) is fixedly installed at the end of the transmission rod (24). The second fixture (32) is sleeved on the transmission rod (24). The first fixture (31) moves synchronously with the transmission rod (24) to change the distance between the first fixture (31) and the second fixture (32).

5. The tire multi-axis support mechanism according to claim 3, wherein, The tensioning drive part (22) includes a tensioning motor (221), a first transmission gear (222) driven by the tensioning motor (221), and a second transmission gear (223). The first transmission gear (222) and the second transmission gear (223) are engaged with each other, and they respectively drive the tensioning shafts (21) to move relatively or in opposite directions.

6. The tire multi-axis support mechanism according to claim 5, characterized in that, The first transmission gear (222) and the second transmission gear (223) are respectively sleeved with a first transmission rod (224) and a second transmission rod (225). The two ends of the first transmission rod (224) and the second transmission rod (225) are respectively connected to the first transmission gear (222), the second transmission gear (23), and the tensioning shaft (21).

7. The tire multi-axis support mechanism according to claim 2, characterized in that, Both opposite ends of the first fixture (31) and the second fixture (32) are provided with abutting parts (33), and the abutting parts (33) are used to abut and expand the inner circle of the tire as the second fixture (32) moves.

8. The multi-axis support mechanism for a tire according to claim 1, characterized in that, The tensioning shafts (21) are respectively a driving shaft (211) and a driven shaft (222). One end of the driving shaft (211) and the driven shaft (222) is sleeved with a connecting plate (23). The connecting plate (23) is connected to the frame (1), and a bearing is provided at the connection. The driving shaft (211) and the driven shaft (212) can both rotate around the bearing of the connecting plate (23).

9. A detection device, characterized in that, It includes the tire multi-axis support mechanism according to any one of claims 1-8. A detection device is provided above the tire multi-axis support mechanism, and the detection device is used to scan the tread and its two sides.

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