A fully automatic tire uniformity inspection machine and method with calibration

Abstract

The application discloses a full-automatic tire uniformity detection machine and method with a calibration device, which comprises a total frame, a tire driving device arranged in the total frame, a loading device arranged on one side of the tire driving device, and a calibration device capable of lifting and arranged between the loading device and the tire driving device. The calibration device comprises a support guide device, a lifting driving device, a calibration support, a radial force calibration device and a lateral force calibration device. The support guide device is arranged on the total frame, the lifting driving device drives the calibration support to move up and down along the support guide device, the radial force calibration device and the lateral force calibration device are arranged on the calibration support, the radial force calibration device calibrates the X-direction of the uniformity detection machine sensor at the center of the load wheel, and the lateral force calibration device calibrates the Y-direction of the uniformity detection machine sensor at the center of the load wheel.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tire detection, in particular to a full-automatic tire uniformity detection machine calibration device and implementation method. BACKGROUND

[0002] The statements herein are provided only to complement the background of the present application and are not necessarily prior art.

[0003] The uniformity of the tire will directly affect the vehicle handling stability and driving safety, so the tire uniformity is a must-check item for tire factory. The tire uniformity detection machine is a special equipment for full-automatic online detection of tire uniformity performance index. In engineering application, before the tire uniformity tester performs formal measurement and after running for a period of time, the test system needs to be calibrated. At present, the calibration method of the domestic uniformity detection machine mainly uses artificial to apply weights to the load wheel to simulate the actual radial force and lateral force. During calibration, 50kg of weight is applied by artificial to calibrate the lateral force, and 200kg of weight is applied to calibrate the radial force. The detection machine must be in a stopped state during calibration, and the calibration device is installed by artificial. Artificially applying weights not only consumes time and effort, but also has low efficiency. In addition, improper installation and disassembly of the weight during the operation process may cause the weight to fall off and cause injury and damage to the machine. At the same time, during the calibration of the radial force, the self-weight of the steel wire rope used for connection is not considered, which affects the calibration accuracy. In addition, the maximum radial force applied by the existing detection equipment during operation reaches 20kN. The existing calibration method cannot realize full-range calibration, which will directly affect the accuracy of the sensor measurement data and further affect the detection result.

[0004] A tire uniformity tester sensor calibration mechanism and a tire uniformity tester are disclosed in patent CN205002973U. However, the calibration structure can only realize radial calibration. How to install the radial calibration device without affecting the normal uniformity detection of the tire and simultaneously realize lateral calibration is not disclosed in the patent. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a full-automatic tire uniformity detection machine with a calibration device and an implementation method, so as to realize radial calibration and lateral calibration without affecting the normal uniformity detection of the tire.

[0006] In order to achieve the above-mentioned purpose, the present application is realized by the following technical solutions:

[0007] In a first aspect, embodiments of the present application provide a total frame, a tire driving device arranged in the total frame, a loading device arranged on one side of the tire driving device, and a liftable calibration device arranged between the loading device and the tire driving device, wherein the calibration device comprises a support guide device, a lifting driving device, a calibration support, a radial force calibration device, and a lateral force calibration device; the support guide device is arranged on the total frame; the lifting driving device drives the calibration support to move up and down along the support guide device; the radial force calibration device and the lateral force calibration device are arranged on the calibration support; the radial force calibration device calibrates an X-direction of a uniformity detector sensor of a load wheel center; and the lateral force calibration device calibrates a Y-direction of the uniformity detector sensor of the load wheel center.

[0008] As a further technical solution, the radial force calibration device comprises a radial support, a radial calibration sensor, a fixing flange, a radial support block, and a radial support rubber layer; the radial support rubber layer has an arc structure matched with the radial support block, and has an arc equal to that of the load wheel to achieve complete adhesion; one end of the radial calibration sensor is fixed on the calibration support through the radial support, and the other end is connected with the radial support block through the fixing flange.

[0009] As a further technical solution, the lateral force calibration device comprises a lateral loading support, a lateral support block, a lateral support rubber layer, a lateral support, and a lateral calibration sensor; the lateral loading support is arranged at the bottom of the calibration support; one lateral support block is arranged at each end of the lateral loading support; the lateral support rubber layer is arranged at the bottom of each lateral support block; one end of the lateral calibration sensor is fixedly arranged at the lower part of the calibration support through the lateral support; and the other end is directly connected with the lateral loading support.

[0010] As a further technical solution, the two lateral support blocks are symmetrically arranged with respect to the center of the lateral calibration sensor.

[0011] As a further technical solution, the support guide device comprises a guide rail seat, a guide rail, and a guide block; the guide rail is arranged on the guide rail seat, and the guide rail seat is fixedly arranged at the front end of the total frame; the guide block is arranged on the guide rail, and the guide block is fixed with the calibration support through bolts; and the top end of the calibration support is connected with the lifting driving device through a pin shaft support.

[0012] As a further technical solution, a limiting device is further included, wherein the limiting device comprises an upper limiting proximity switch and a lower limiting proximity switch; the upper limiting proximity switch is arranged at the upper part of the total frame, and the lower limiting proximity switch is arranged at the lower part of the total frame; and a detection baffle is arranged on the calibration support.

[0013] As a further technical scheme, the loading device comprises a load wheel, a load wheel support and a load wheel driving device; the load wheel is installed on the load wheel support, the top and bottom centers of the load wheel are the uniformity detection machine sensors, and the load wheel support is driven by the load wheel driving device to pass through the calibration device with the load wheel to load the tire.

[0014] As a further technical scheme, the tire driving device comprises a main shaft lifting frame installed on the top of the general frame; an upper main shaft is installed on the upper main shaft lifting frame; a base is fixed on the bottom of the general frame, and a lower main shaft is arranged on the base; the upper main shaft and the lower main shaft are arranged in a corresponding manner, and the driving wheel is rotated.

[0015] In the second aspect, the application further discloses a tire uniformity detection method, and specifically comprises the following steps:

[0016] Before the detection device detects, radial calibration is first performed; when the lifting driving device drives the radial force calibration device to move to the center of the side of the load wheel of the loading device, the radial force calibration device is stopped; the radial force calibration sensor of the radial force calibration device and the uniformity detection machine sensor are reset to zero, and the output values of the two sensors are kept as 0; then the load wheel driving device drives the load wheel to apply a load to the radial support block, and the load is slowly loaded to the maximum load F rmax of the radial full range calibration; the radial force calibration sensor and the uniformity detection machine sensor are sampled n times in sequence, and F r1 , F r2 , …, F rn and V r1 , V r2 , …, V rn are obtained. and are sequentially obtained; 1 / 4F rmax , 1 / 2F rmax , 3 / 4F rmax and F rmax point data corresponding average numbers F2, F3, F4, F5 and V2, V3, V4, V5 are sequentially obtained; finally, the radial force calibration coefficient and are obtained by fitting formula (1) according to the least square method principle; and the radial force calibration is completed.

[0017] After the radial calibration is completed, the load wheel first returns to the initial position, and then the calibration device returns to the initial position; then the lateral force calibration is performed; the load wheel driving device drives the load wheel to move to the center position of the load wheel to align the center of the lateral calibration sensor; after the load device stops, the lifting driving device drives the calibration support to move downward, the lateral support block is symmetrically loaded on the side of the load wheel to apply a load, and the load is slowly loaded to the maximum load F lmax, the lateral force calibration sensor and the uniformity detection machine sensor are sampled n times in sequence, and F l1 ,F l2 ,……,F ln and V l1 ,V l2 ,……,V ln are brought into and 1 / 4F lmax , 1 / 2F lmax , 3 / 4F lmax , F lmax point data are sequentially obtained, and corresponding average numbers F2, F3, F4, F5 and V2, V3, V4, V5 of the point data are sequentially obtained. Then, formula (2) is fitted according to the least square method principle, and finally, lateral force calibration coefficients and are obtained, and the calibration of the lateral force is completed.

[0018] Then, the lifting driving device drives the calibration support to move upward to the initial position; the tire is installed on the tire driving device, the loading device normally passes below the calibration device, then the tire is loaded, and the uniformity detection of the tire is performed.

[0019] The beneficial effects of the above embodiments of the present application are as follows:

[0020] The calibration device in the present application is installed between the loading device and the tire driving device, and can be lifted. When the lifting driving device drives the calibration support to move upward to the initial position, the loading device can normally pass below the calibration device, then the tire is loaded, and the uniformity detection of the tire is performed. When radial calibration is needed, the lifting driving device drives the calibration device to descend, and when the radial force calibration sensor moves to the center of the side surface of the load wheel to align the load wheel, the calibration is stopped. Then, the load wheel moves to the radial force calibration sensor under the driving of the load wheel driving device, and then the load is loaded, and the radial calibration is realized. When lateral calibration is needed, the load wheel driving device drives the load wheel to move to the center position of the load wheel to align the center of the lateral calibration sensor, and after the load device is stopped, the lifting driving device drives the calibration support to move downward, and the lateral supporting blocks are symmetrically loaded on the side edges of the load wheel to apply the load, and then the lateral calibration is realized. That is, the present application realizes the calibration of the uniformity detection machine sensor in the X direction and the Y direction of the center position of the load wheel through the cooperation and coordination of the loading device, the lifting driving device, the radial force calibration device and the lateral force calibration device.

[0021] The present application uses high-precision standard sensors to replace the original weight calibration scheme, eliminates the influence of the self-weight of the steel wire rope on the calibration accuracy during radial force calibration, and realizes full-range calibration of radial force and lateral force, thereby improving the calibration accuracy. The calibration device provided by the present application can be calibrated online at any time, can effectively reduce the calibration error caused by human factors, and can eliminate the potential dangers such as injury and machine damage caused by improper installation and disassembly of the weight during the traditional manual calibration process. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the uniformity detection machine with the automatic calibration device.

[0024] Figure 2 It is a schematic diagram of the overall structure of the automatic calibration device of the present application

[0025] Figure 3 It is an exploded schematic diagram of the subject part of the calibration device of the present application.

[0026] Figure 4 It is an assembly schematic diagram of the radial calibration sensor of the present application.

[0027] Figure 5 It is a schematic diagram of the radial calibration of the present application.

[0028] Figure 6 It is a schematic diagram of the lateral calibration of the present application.

[0029] Figure 7 It is a schematic diagram of the automatic calibration process.

[0030] In the drawings, the mutual distance or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration.

[0031] Figures 1 to 6Fig. 1 is a schematic diagram of the uniformity calibration device, wherein: 1 is the upper main shaft lifting frame, 2 is the uniformity upper main shaft, 3 is the uniformity total frame, 4 is the calibration device, 401 is the screw guide rail seat, 402 is the screw guide rail, 403 is the guide block, 404 is the calibration support, 405 is the lateral loading support frame, 406 is the lateral support block, 407 is the lateral support rubber layer, 408 is the screw, 409 is the pin shaft support, 410 is the screw connecting block, 411 is the locking nut, 412 is the limit sensor support, 413 is the lateral calibration sensor support, 414 is the radial calibration sensor support, 415 is the radial force calibration sensor, 416 is the sensor fixing flange, 417 is the radial support block, 418 is the radial support rubber layer, 419 is the lateral force calibration sensor, 420 is the upper limit proximity switch, 421 is the lower limit proximity switch, 422 is the detection baffle;

[0032] 5 is the uniformity lower main shaft, 6 is the uniformity base, 7 is the servo support frame, 8 is the screw assembly, 9 is the calibration servo motor, 10 is the load wheel, 11 is the load wheel support, 12 is the load device servo motor, 13 is the uniformity detection machine sensor. DETAILED DESCRIPTION

[0033] It should be noted that the following detailed description is illustrative only, and is intended to provide further description in connection with the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0034] It is also important to note that the use of the term "or" in the context of this application is to be interpreted as inclusive or, meaning there was an option to select one or more of the items. It is further noted that the use of a "and / or" between items in a list of this application are to be construed as an "and / or", unless otherwise stated. As used herein, the term "about" means that the recited numerical property or value is within 10% of the recited numerical property or value.

[0035] For the convenience of description, if the words "upper", "lower", "left", "right" appear in the present application, they only indicate the same direction as the upper, lower, left and right directions of the drawing itself, and do not limit the structure, but only for the convenience of describing the present application and simplifying the description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] The terms "mounting", "connecting", "connecting", "fixing" and the like in the present application should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements, or the interaction relationship of two elements, for those skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the terms in the present application.

[0037] As introduced in the background, in order to solve the above technical problems, the present application provides a full-automatic tire uniformity detection machine calibration device and implementation method.

[0038] Specifically, please refer to Figures 1-7 , Figure 1 It is a whole structure schematic diagram of the uniformity detection machine with automatic calibration device (including total frame, upper and lower main shaft, calibration device, loading device); Figure 2 It is a whole structure schematic diagram of the automatic calibration device of the present application (including servo motor, transmission device, screw assembly, calibration device); Figure 3 It is an exploded schematic diagram of the automatic calibration device of the present application; Figure 4 It is an assembly schematic diagram of the radial calibration sensor of the present application; Figure 5 It is a schematic diagram of the radial calibration of the present application; Figure 6 It is a schematic diagram of the lateral calibration of the present application; Figure 7 It is a flow chart schematic diagram of automatic calibration.

[0039] The present application provides a full-automatic tire uniformity detection machine with calibration device, which comprises a total frame 3, a tire driving device is arranged in the total frame 3, a loading device is arranged on one side of the tire driving device, and a calibration device capable of lifting is arranged between the loading device and the tire driving device;

[0040] The tire driving device comprises a main shaft lifting frame 1 fixed on the top of the general frame 3, a uniformity upper main shaft 2 installed on the upper main shaft lifting frame 1, a base 6 fixed on the bottom of the general frame 3, and a uniformity lower main shaft 5 arranged on the base 6; the uniformity upper main shaft 2 and the uniformity lower main shaft 5 are arranged in a corresponding manner; the tire driving device is mainly used for driving the tire to rotate; a calibration device 4 is installed on one side of the general frame 3; the calibration device comprises a support guiding device, a lifting driving device, a calibration support, a radial force calibration device and a lateral force calibration device; the support guiding device is installed on the general frame; the lifting driving device drives the calibration support to move up and down along the support guiding device; the radial force calibration device and the lateral force calibration device are installed on the calibration support; the radial force calibration device calibrates the X-direction of the uniformity detection machine sensor of the load wheel center; and the lateral force calibration device calibrates the Y-direction of the uniformity detection machine sensor of the load wheel center; the calibration support is controlled to move up and down by the lifting driving device and to provide a load force during lateral force calibration; that is, the lifting driving device has two functions, one is to control the calibration device to move up and down, and the other is to provide a load force during lateral force calibration, so that the calibration device has a simple structure and low cost.

[0041] A loading device is further arranged on the general frame 3 and located on the same side of the calibration device 4 on the general frame 3; the loading device comprises a load wheel 10, a load wheel support 11 and a load device servo motor 12; the load wheel 10 is installed on the load wheel support 11; the top and bottom centers of the load wheel 10 are uniformity detection machine sensors 13; the load wheel support 11 is driven by the load device servo motor 12; the uniformity detection machine sensors 13 are two-dimensional force sensors and are sensors to be calibrated; and the calibration device 4 mainly calibrates the X-direction and Y-direction of the uniformity detection machine sensors 13.

[0042] The general frame 3 described above plays a role of overall support and is installed on the uniformity base 6 by bolts; the general frame 3 supports key structures of the entire detection system, mainly supports the upper main shaft lifting frame 1, the calibration device 4, the load mechanism 11 and the like.

[0043] The lifting driving device in the embodiment is used for controlling the calibration support and the radial force calibration device and the lateral force calibration device to move up and down and can also provide a load force during lateral force calibration; specifically, the lifting driving device comprises a calibration servo motor 9, a servo support 7 and a screw assembly 8; the servo support 7 is installed on one side of the top of the general frame 3; the calibration servo motor 9 is installed on the servo support 7 through a motor mounting plate; and the screw assembly 8 is installed on the servo support 7 and is integrally installed on the top front part of the general frame 3; the calibration servo motor 9 drives the screw in the screw assembly to move up and down through a toothed belt, so as to realize the up-and-down movement of the calibration device.

[0044] Further, the support and guide device in the embodiment comprises a guide rail base 401, a guide rail 402, a guide block 403, and a calibration support 404. The guide rail 402 is mounted on the guide rail base 401, and the guide rail base 401 is fixedly mounted on the front end of the general frame 3. The guide block 403 is arranged on the guide rail 402, and the guide block 403 is fixed with the calibration support 404 through bolts. The calibration support and the radial force calibration device and the lateral force calibration device can slide up and down on the guide rail 402 driven by the lead screw of the lifting drive device. The top end of the calibration support is connected with the lead screw through a pin shaft support 409 and a lead screw connecting block 410. The support and guide device mainly guides the movement of the calibration support.

[0045] Further, the radial force calibration device in the embodiment comprises a radial support 414, a radial calibration sensor 415, a sensor fixing flange 416, a radial support block 417, and a radial support rubber layer 418. The radial calibration sensor 415 calibrates the X-direction of the uniformity detection machine sensor 13. The radial support rubber layer 418 is an arc structure matched with the radial support block 417, and has an equal arc with the arc of the load wheel to achieve perfect fitting. One end of the radial calibration sensor 415 is fixed on the calibration support 404 through a radial calibration sensor support, and the other end is connected with the radial support block 418 through the sensor fixing flange 416. The radial force calibration device cooperates with the loading device to realize radial calibration. When the tire uniformity is detected, the radial force calibration device can be withdrawn to the original position to detect the tire uniformity.

[0046] Further, the lateral force calibration device in the embodiment comprises a lateral loading support 405, a lateral support block 406, a lateral support rubber layer 407, a lateral support 403, and a lateral calibration sensor 419. The lateral calibration sensor 419 calibrates the Y-direction of the uniformity detection machine sensor 13. One lateral support block 406 is arranged at each end of the lateral loading support 405. The two lateral support blocks 406 are symmetrically arranged relative to the lateral calibration sensor 419. The lateral support rubber layer 407 is fixed on the bottom of the lateral support block 406. The lateral support block 406 is connected with the lateral loading support 405 through threads. One end of the lateral calibration sensor 419 is fixedly mounted on the lower part of the calibration support 404 through a lateral calibration sensor support, and the other end is directly connected with the lateral loading support. The lateral support block 406 can load the downward axial loading force on the load wheel through the lifting drive device to realize lateral calibration. The lateral force calibration device cooperates with the loading device to realize axial calibration. When the tire uniformity is detected, the lateral force calibration device can be withdrawn to the original position to detect the tire uniformity.

[0047] The aforementioned lateral force calibration device and radial force detection device are both mounted on the calibration bracket 404 and driven simultaneously by the lifting drive device to achieve radial calibration or lateral calibration. The lateral force calibration device and radial force detection device can work independently without interfering with each other.

[0048] To prevent collisions during manual operation, this invention also includes limit sensor brackets 412, an upper limit proximity switch 420, and a lower limit proximity switch 421. The two limit sensor brackets 412 are installed at the upper and lower limit positions on the right side of the main frame 3. The upper limit proximity switches 420 and 421 are each installed on a limit sensor bracket 412. The upper limit position is the minimum distance at which the calibration bracket 404 will not collide with the upper part of the main frame 3, and the lower limit position is the minimum distance at which the lateral support block 404 will not collide with the uniformity base 6. A detection baffle 422 is installed at the right end of the calibration bracket 404. When the calibration bracket 404 moves to the upper limit position, the upper limit proximity switch 420 sends a signal, and the calibration device stops to prevent collision with the upper part of the main frame 3. When the calibration bracket 404 moves to the lower limit position, the lower limit proximity switch 421 sends a signal, and the calibration device stops to prevent collision with the uniformity base 6.

[0049] When not calibrated, the calibration device 4 is located at the top of the main frame 3. The load wheel 10 and the load wheel bracket 11 can pass normally under the calibration device during the normal uniformity test without collision.

[0050] The calibration begins with radial calibration. During radial force calibration, the force measured by the radial force calibration sensor 415 is used as the reference value F. r The voltage output value of sensor 13 in the X direction of the uniformity detector is V. r The reference value and the sensor's measured output voltage should theoretically have a linear relationship, assuming they satisfy formula (1): F r =aV r +b. Where a and b are radial force calibration coefficients. The specific method for radial force calibration is as follows: The calibration servo motor 9 drives the lead screw assembly 8 to move the calibration bracket downwards until the center of the radial support block 417 aligns with the center of the side of the load wheel 10, at which point the entire mechanism is in a state free from any other force interference. The radial force calibration sensor 415 and the uniformity detection sensor 13 are reset to zero, maintaining the output values ​​of both sensors at 0. Then, the load device servo motor 12 drives the load wheel 10 to apply a load to the radial support block 417. The radial loading method can be found in [reference needed]. Figure 5 By slowly loading to F rmax (Maximum load for radial full-scale calibration), the radial force calibration sensor 415 and the uniformity detection sensor 13 are sampled n times sequentially to obtain F. r1 ,F r2 ,……,Frn and V r1 V r2 ,……,V rn Substitute and Calculate 1 / 4F sequentially rmax 1 / 2F rmax 3 / 4F rmax F rmax The corresponding averages F2, F3, F4, F5 and V2, V3, V4, V5 of the point data are then fitted to formula (1) according to the least squares method, and the radial force calibration coefficient is finally obtained. and Complete the calibration of the radial force.

[0051] After radial calibration is completed, the load wheel first returns to its initial position, followed by the calibration device. Then, lateral force calibration is performed. During lateral force calibration, the force measured by the lateral force calibration sensor 419 is used as the reference value F. l The voltage output value of sensor 13 in the Y direction of the uniformity detection machine is V. l The reference value and the sensor's measured output voltage should theoretically have a linear relationship, assuming they satisfy formula (2): F l =cV l +d. Where c and d are the lateral force calibration coefficients. The specific method for lateral force calibration is as follows: After the calibration device returns to its initial position, the load device servo motor 12 drives the load wheel 10 to move to the center position of the load wheel and align it with the center of the lateral calibration sensor. After the load device stops, the calibration servo motor 9 drives the calibration device to move downwards, and the lateral support block 406 symmetrically applies load to the side of the load wheel. The lateral loading method is referenced... Figure 6 By slowly loading to F lmax (Maximum load for lateral full-range calibration), the lateral force calibration sensor 415 and the uniformity detection sensor 13 are sampled n times sequentially to obtain F. l1 ,F l2 ,……,F ln and V l1 V l2 ,……,V ln Substitute and Calculate 1 / 4F sequentially lmax 1 / 2F lmax 3 / 4F lmax F lmax The corresponding averages F2, F3, F4, F5 and V2, V3, V4, V5 of the point data are then fitted to formula (2) according to the least squares method, and the lateral force calibration coefficients are finally obtained as follows:

[0052] and Complete the calibration of the lateral force.

[0053] After calibration is complete, the calibration device returns to its initial position, and the load device returns to its original position to complete the calibration.

[0054] Finally, it should be noted that relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fully automatic tire uniformity machine with calibration device, characterized in that, Including the overall frame The frame contains a tire drive unit, and a loading device is located on one side of the tire drive unit. A height-adjustable calibration device is installed between the device and the tire drive unit. The calibration device includes a support guide. The device includes a lifting drive, a calibration bracket, a radial force calibration device, and a lateral force calibration device; The support and guide device is installed on the main frame, and the lifting drive device drives the calibration bracket along the support. The guide device moves up and down, and the radial force calibration device and the lateral force calibration device are installed on the calibration bracket. The radial force calibration device described above calibrates the X-direction sensor of the uniformity detection machine at the center of the load wheel. The lateral force calibration device described above calibrates the Y-direction sensor of the uniformity detection machine at the center of the load wheel; The lifting drive device provides the load force during lateral force calibration; The lateral force calibration device includes a lateral loading support frame, a lateral support block, and lateral support rubber. The system comprises a layer, a lateral support, and a lateral calibration sensor; the lateral loading support is mounted at the bottom of the calibration support. A lateral support block is installed at each end of the lateral loading support frame, and a bottom of each lateral support block is provided with... A lateral support rubber layer is provided, and one end of the lateral calibration sensor is fixedly mounted under the calibration bracket via a lateral bracket. One end is directly connected to the lateral loading support frame; The radial force calibration device includes a radial support, a radial calibration sensor, a fixed flange, and a radial... Support blocks and radial support rubber layers; the radial support rubber layer is arc-shaped to match the curvature of the radial support blocks. The structure is designed to perfectly fit the load wheel's curvature, with one end of the radial calibration sensor connected to a radial support. The frame is fixed on the calibration bracket, and the other end is connected to the radial support block through a fixed flange; When the lifting drive device drives the calibration bracket to move upward to the initial position, the loading device can... The system passes normally under the calibration device, and then the tire is loaded for tire uniformity testing.

2. The fully automatic tire uniformity testing machine with calibration device as described in claim 1, characterized in that... In the present application, The two lateral support blocks are arranged symmetrically with respect to the center of the lateral calibration sensor.

3. The fully automatic tire uniformity testing machine with calibration device as described in claim 1, characterized in that... In the present application, The supporting and guiding device includes a guide rail base, a guide rail, and a guide block; the guide rail is mounted on the guide rail. The guide rail base is fixedly installed at the front end of the main frame. Guide blocks are set on the guide rail, and the guide blocks are aligned with the calibration. The bracket is fixed with bolts, and the top of the calibration bracket is connected to the lifting drive device via a pin support.

4. The fully automatic tire uniformity testing machine with calibration device as described in claim 1, characterized in that... In the present application, It also includes a limiting device.

5. The fully automatic tire uniformity testing machine with calibration device as described in claim 4, characterized in that... In the present application, The limiting device includes an upper limit proximity switch and a lower limit proximity switch, wherein the upper limit... The proximity switch is installed on the upper part of the main frame, and the lower limit proximity switch is installed on the lower part of the main frame. The calibration bracket is equipped with a test baffle.

6. The fully automatic tire uniformity testing machine with calibration device as described in claim 1, characterized in that... It lies in, The loading device comprises a load wheel, a load wheel support and a load wheel driving device; The load wheel is installed on the support, and the top and bottom centers of the load wheel are sensors of the uniformity detector; The load wheel support is driven by the load wheel driving device to pass through the calibration device with the load wheel to load the tire.

7. The full-automatic tire uniformity detector with a calibration device according to claim 1, characterized in that The tire driving device comprises a main shaft lifting frame installed on the top of the general frame, an upper main shaft installed on the upper main shaft lifting frame, a base fixed on the bottom of the general frame, a lower main shaft arranged on the base, and the upper main shaft and the lower main shaft are arranged in a corresponding manner. In the present application, ​ ​ ​

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