Tire measuring device of four-wheel aligner in automobile test platform

Abstract

The invention discloses a tire measuring device of a four-wheel aligner in an automobile test platform, and belongs to the technical field of automobile test platforms. The positioning instrument comprises a positioning instrument body, a detection shooting assembly, an analysis assembly and a lifting assembly, a simulation assembly is fixedly installed on the upper side of the positioning instrument body, the simulation assembly comprises two through grooves formed in the upper side of the positioning instrument body, a hydraulic rod is fixedly connected into the positioning instrument body, and the output end of the hydraulic rod is fixedly connected with a movable plate. In the detection process of a wheel tire, the motor can be started, the control panel is driven to move through a series of transmission structures, the control panel abuts against the wheel and compresses the wheel, simulation of the use environment of the wheel is formed, and in the process, the pressure of the control panel on the wheel is continuously changed, so that a better simulation effect can be formed; and the accuracy of the wheel detection result can be further improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile test platforms, in particular to a tire measuring device of a four-wheel aligner in an automobile test platform. Background Art

[0002] The car four-wheel alignment instrument is a precision measuring instrument used to detect the wheel alignment parameters of the car and compare them with the original design parameters, so as to guide the user to make corresponding adjustments to the wheel alignment parameters to meet the original design requirements, so as to achieve the ideal car driving performance, that is, easy operation, stable and reliable driving, and reduced tire wear. It mainly includes a base, a fixture, a sensor, a camera, etc., and the car is parked on the upper side of the base and the corresponding detection operation is performed. The overall operation is simple and the measurement results are accurate; However, in the actual detection process, the measurement effect of the automobile tire is general. The tire is directly parked on the base, and the pressure on the tire is in a constant state. In the detection process, the use environment of the tire is not simulated, resulting in a certain error in the measurement result of the tire. In the measurement process, there is no measurement operation of the friction degree of the tire surface and the wear degree of the tire profile, and the potential damage of the tire cannot be measured. Therefore, a tire measuring device of a four-wheel aligner in an automobile test platform is provided. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a tire measuring device for a four-wheel aligner in an automobile test platform.

[0004] The present invention adopts the following technical solutions: A tire measuring device of a four-wheel aligner in an automobile test platform comprises an aligner body, a detection and shooting component, an analysis component and a lifting component, a simulation component is fixedly installed on the upper side of the aligner body, the simulation component comprises two groups of through grooves opened on the upper side of the aligner body, a hydraulic rod is fixedly connected in the aligner body, a moving plate is fixedly connected to the output end of the hydraulic rod, a moving plate is fixedly connected to the upper side of the moving plate, a moving rod is fixedly connected to the upper side of the moving rod, a moving box is fixedly connected in the moving box, a motor is fixedly connected in the moving box, a reciprocating screw rod is fixedly connected to the output end of the motor, and the outer threaded sleeve of the reciprocating screw rod is connected to the outer threaded sleeve of the reciprocating screw rod. There is a moving block, the moving block and the moving box are slidably connected, the upper side of the moving block is fixedly connected with a fixed rod, the outer side of the fixed rod is slidably sleeved with a control plate, the moving box is fixedly connected with a moving frame, the control plate is located on the upper side of the moving frame and abuts against the moving frame, the side wall of the fixed rod is slidably connected with a first connecting rod, the outer side of the first connecting rod is fixedly connected with a first connecting plate, a plurality of second connecting rods are fixedly connected between the upper side of the first connecting plate and the control plate, two cams are fixedly sleeved on the outer side of the reciprocating screw rod, four protrusions are fixedly connected to the upper side of the control plate, and the four protrusions are grouped in pairs.

[0005] Preferably, a stripe pattern detection component for the inner surface of the tire is installed on the upper side of the control panel, and the stripe pattern detection component includes two detection grooves opened on the upper side of the control panel, and the two detection grooves are respectively located between each group of two protrusions, and a control box is slidably connected in the detection groove, and a plurality of slides are slidably connected in the control box, a first spring is fixedly connected between the plurality of slides, the same first spring is fixedly connected between the two side slides and the control box, a first pressure sensor is fixedly connected between the plurality of slides, and the same first pressure sensor is fixedly connected between the two side slides and the control box, a second pressure sensor is fixedly connected to the upper side of the plurality of groups of slides, and a triangular plate is fixedly connected to the upper side of the second pressure sensor.

[0006] Preferably, a first trapezoidal plate is fixedly connected to the lower side of the control box, and multiple groups of third connecting rods are slidably connected to the side walls of the detection groove, and multiple groups of third connecting rods pass through the side walls of the detection groove. Multiple groups of third connecting rods are located inside the detection groove and are fixedly connected to the second trapezoidal plate at one end, and multiple groups of third connecting rods are located outside the detection groove and are fixedly connected to the third trapezoidal plate at one end, and two fourth trapezoidal plates are symmetrically fixedly connected in the through groove.

[0007] Preferably, a depression detection assembly for the wheel side wall is installed on the upper side of the third connecting rod, and the depression detection assembly includes a fourth connecting rod fixedly installed on the upper side of the third connecting rod, a second connecting plate is fixedly connected to the upper side of the fourth connecting rod, a square rod is slidably connected in the second connecting plate, a fourth connecting plate is fixedly connected to the outer side of the square rod, a fifth connecting rod is fixedly connected in the fourth connecting plate, a fifth connecting plate is rotatably sleeved on the outer side of the fifth connecting rod, a plurality of groups of sixth connecting rods are fixedly connected to the outer side of the fifth connecting plate, third springs are fixedly connected to the outer sides of the fifth connecting plate, an arc rod is fixedly connected to the side wall of the fifth connecting plate, the arc rod passes through the fourth connecting plate, a third pressure sensor is slidably connected to the upper side of the fourth connecting plate, a fourth spring is fixedly connected between the third pressure sensor and the fifth connecting plate, and button plates are fixedly connected to the outer sides of the fifth connecting plate.

[0008] Preferably, a third connecting plate is fixedly connected to the outer side of the square rod, and a second spring is fixedly connected between the third connecting plate and the second connecting plate.

[0009] Preferably, the surfaces of the first trapezoidal plate, the second trapezoidal plate, the third trapezoidal plate and the fourth trapezoidal plate are all smooth.

[0010] Preferably, anti-slip rubber pads are fixedly mounted on the surfaces of the protrusions.

[0011] The beneficial effects of the present invention are: 1. First, during the inspection of wheels and tires, the motor can be started to drive the control board to move through a series of transmission structures. The control board and the wheel are pressed against each other and the wheel is compressed to simulate the use environment of the wheel. In this process, the pressure of the control board on the wheel changes continuously, which can better form the simulation effect and further improve the accuracy of the wheel inspection results. 2. At the same time, when the hydraulic rod drives the moving box and the control board to move, it also drives the control box to move as a whole, and the control box drives the triangular plate to move, and the triangular plate and the strip pattern on the outside of the wheel are against each other, wherein the middle triangular plate extends into the strip pattern, and the outer triangular plate and the side wall of the wheel are against each other, and then, a simple detection operation of the strip pattern on the outside of the wheel is formed by using the first pressure sensor and the second pressure sensor, which has a high degree of automation and intelligence; 3. Moreover, when the control board changes the pressure on the wheel, the fifth connecting plate and the sixth connecting rod can be driven to move, thereby forming a detection operation for the depression of the wheel side wall, and then cooperate with the third pressure sensor to perform automatic detection, with good practical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a structural schematic diagram of a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention from another angle; Figure 3 A top view connection diagram of a mobile box in a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention; Figure 4 A cross-sectional connection diagram of a mobile box in a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention; Figure 5 for Figure 4 A magnified view of the structure at center A; Figure 6 A schematic diagram of the connection between a control panel and a slider in a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention; Figure 7 This is a structural schematic diagram of a stripe pattern detection component in a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention; Figure 8 A cross-sectional connection diagram of a detection groove in a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention; Fig. 9 A schematic diagram of the connection of a depression detection component in a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention; Fig.10 This is a connection schematic diagram of another angle of a depression detection component in a tire measuring device of a four-wheel aligner in an automobile test platform proposed by the present invention.

[0013] In the figure: 1 positioning instrument body, 2 detection shooting component, 3 analysis component, 4 lifting component, 5 simulation component, 501 through slot, 502 hydraulic rod, 503 moving plate, 504 moving rod, 505 moving box, 506 motor, 507 reciprocating screw rod, 508 moving block, 509 fixed rod, 510 control board, 511 moving frame, 512 first connecting rod, 513 first connecting plate, 514 second connecting rod, 515 protrusion, 516 cam, 6 stripe pattern detection component, 61 detection slot, 62 control box, 63 slide plate, 64 first a spring, 65 a second pressure sensor, 66 a first pressure sensor, 67 a triangular plate, 7 a first trapezoidal plate, 8 a third connecting rod, 9 a second trapezoidal plate, 10 a third trapezoidal plate, 11 a fourth trapezoidal plate, 12 a recess detection assembly, 13 a fourth connecting rod, 14 a second connecting plate, 15 a square rod, 16 a third connecting plate, 17 a second spring, 18 a fourth connecting plate, 19 a fifth connecting rod, 20 a third spring, 21 a button plate, 22 a fifth connecting plate, 23 a sixth connecting rod, 24 an arc rod, 25 a third pressure sensor, 26 a fourth spring. DETAILED DESCRIPTION

[0014] See also Figure 1-Figure 10 A tire measuring device of a four-wheel aligner in an automobile test platform comprises an aligner body 1, a detection and shooting component 2 and an analysis component 3, wherein the detection and shooting component 2 comprises a plurality of first cameras fixedly mounted on the upper side of the aligner body 1, wherein the plurality of cameras are arranged relatively to each other, a control box 62 is fixedly connected to the upper side of the aligner body 1, a bracket is fixedly connected to the upper side of the control box 62, a plurality of second cameras are fixedly connected to the outer side of the bracket, a plurality of fixtures are placed in the control box 62, a plurality of mirrors are installed on the outer side of the control box 62, the analysis component 3 comprises a display screen fixedly mounted on the front side of the body, a lifting component 4 for a vehicle to be tested is installed on the upper side of the aligner, and the lifting component 4 comprises a plurality of hydraulic lifting rods fixedly mounted in the aligner body 1; First, the car to be inspected is driven to the upper side of the locator body 1, the hydraulic lifting rod is started, the car to be inspected is lifted, and then the car is simply fixed with a fixture, the four wheels of the car are positioned, and then the car is photographed by the first camera and the second camera to perform corresponding inspection operations. In this process, not only can the shooting angle be adjusted by adjusting the first camera and the second camera, but also the shooting inspection operation of the bottom of the car can be completed by multiple sets of mirrors. The above are all existing technologies and no redundant elaboration is made; like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6A simulation component 5 is fixedly installed on the upper side of the positioning instrument body 1. The simulation component 5 includes two groups of through grooves 501 opened on the upper side of the positioning instrument body 1. The two groups of through grooves 501 are symmetrically arranged on both sides of the hydraulic lifting rod. A hydraulic rod 502 is fixedly connected in the positioning instrument body 1. A moving plate 503 is fixedly connected to the output end of the hydraulic rod 502. A moving rod 504 is fixedly connected to the upper side of the moving plate 503. A moving box 505 is fixedly connected to the upper side of the moving rod 504. The moving box 505 runs through the through groove 501 and is slidably connected up and down with the through groove 501. A motor 506 is fixedly connected in the moving box 505. A reciprocating screw rod 507 is fixedly connected to the output end of the motor 506. A moving block 508 is threadedly sleeved on the outer side of the reciprocating screw rod 507. The moving block 508 and the moving box 50 5 sliding connection, the upper side of the moving block 508 is fixedly connected with a fixed rod 509, the outer side of the fixed rod 509 is slidably sleeved with a control plate 510, a moving frame 511 is fixedly connected inside the moving box 505, the control plate 510 is located on the upper side of the moving frame 511 and abuts against the moving frame 511, the side wall of the fixed rod 509 is slidably connected with a first connecting rod 512, the outer side of the first connecting rod 512 is fixedly connected with a first connecting plate 513, a plurality of second connecting rods 514 are fixedly connected between the upper side of the first connecting plate 513 and the control plate 510, two cams 516 are fixedly sleeved on the outer side of the reciprocating screw rod 507, four protrusions 515 are fixedly connected to the upper side of the control plate 510, the four protrusions 515 are in groups of two, and the surfaces of the protrusions 515 are fixedly installed with anti-slip rubber pads; First, when the hydraulic rod 502 is not started, the locator body 1, the moving box 505, and the control panel 510 are at the same level. When the car needs to be inspected, the car is driven on the upper side of the control panel 510 so that the two wheels of the car are located between each set of two cams 516. At this time, the car and the cams 516 are against each other (ignoring the obstruction effect of the cams 516 on the moving car in this process). In the process of inspecting the car, the hydraulic rod 502 is started so that the hydraulic rod 502 drives the moving plate 503 and the moving rod 504 to move upward, and the moving rod 504 drives the moving box 505 to move upward. The moving box 505 drives the control panel 510 to move upward through the moving frame 511. The control panel 510 and the wheel are against each other and compress the wheel to simulate the wheel use environment (in this process, due to the heavy weight of the car as a whole, the control panel 510 moving upward will only compress the wheel and will not move the car as a whole upward). At this time, the motor 506 is started, and the motor 506 drives the reciprocating screw 507 to rotate. The reciprocating screw 507 drives the moving block 508 to move left and right. The moving block 508 drives the control board 510 to move left and right through the fixed rod 509. The moving control board 510 will drive the wheel to rotate back and forth, thereby simulating the driving of the wheel. At this time, when the first camera and the second camera are used to perform shooting and detection operations, the accuracy of the detection results can be improved. In the rotation process of the reciprocating screw 507, the reciprocating screw 507 will drive the cam 516 to rotate. When the cam 516 and the first connecting plate 513 are against each other, the first connecting plate 513 and the first connecting rod 512 will be driven to move upward relative to the fixed rod 509 as a whole. The first connecting plate 513 drives the control board 510 to move upward through the second connecting rod 514, thereby causing the pressure of the control board 510 on the wheel to change, thereby further improving the accuracy of the wheel detection results.

[0015] like Figure 7 , Figure 8 A stripe pattern detection assembly 6 for the inner surface of the tire is installed on the upper side of the control board 510. The stripe pattern detection assembly 6 includes two detection grooves 61 opened on the upper side of the control board 510. The two detection grooves 61 are respectively located between each group of two protrusions 515. A control box 62 is slidably connected in the detection groove 61. A plurality of slide plates 63 are slidably connected in the control box 62. A first spring 64 is fixedly connected between the plurality of slide plates 63. The same first spring 64 is fixedly connected between the two side slide plates 63 and the control box 62. A first pressure sensor 66 is fixedly connected between the plurality of slide plates 63. The same first pressure sensor 66 is fixedly connected between the two side slide plates 63 and the control box 62. A second pressure sensor 65 is fixedly connected to the upper side of the plurality of groups of slide plates 63. A triangular plate 67 is fixedly connected to the upper side of the second pressure sensor 65. First of all, the first pressure sensor 66 and the second pressure sensor 65 are both commonly used pressure sensors in real life. They are devices or apparatuses that can sense pressure signals and convert pressure signals into usable output electrical signals according to certain rules. After the movable box 505 moves upward relative to the locator body 1, the control box 62 and the triangular plate 67 will move upward as a whole. The triangular plate 67 and the strip pattern on the outside of the wheel will abut against each other. Among them, the middle triangular plate 67 extends into the strip pattern, and the outer triangular plate 67 abuts against the side wall of the wheel. At this time, the triangular plate 67 will compress the second pressure sensor 65, and the second pressure sensor 65 will send out a corresponding electrical signal. At the same time, the triangular plates 67 at the outer ends abut against the side wall of the wheel, and the first sensor 66 also sends out a corresponding electrical signal. Then the vehicle body can be started to rotate the wheel. During the rotation of the wheel, the triangular plate 67 is always located in the strip pattern on the outside of the wheel. During this process, if the electrical signals sent by the first pressure sensor 66 and the second pressure sensor 65 change, it means that the strip pattern of the wheel is abnormal or damaged, and corresponding detection operations need to be performed.

[0016] The lower side of the control box 62 is fixedly connected with a first trapezoidal plate 7, and the side wall of the detection groove 61 is slidably connected with multiple sets of third connecting rods 8, and the multiple sets of third connecting rods 8 penetrate the side wall of the detection groove 61. The multiple sets of third connecting rods 8 are located in the detection groove 61. One end is fixedly connected with a second trapezoidal plate 9, and the multiple sets of third connecting rods 8 are located outside the detection groove 61. One end is fixedly connected with a third trapezoidal plate 10, and two fourth trapezoidal plates 11 are symmetrically fixedly connected in the through groove 501. The surfaces of the first trapezoidal plate 7, the second trapezoidal plate 9, the third trapezoidal plate 10, and the fourth trapezoidal plate 11 are all smooth. First, in the process of starting the hydraulic rod 502 to drive the movable box 505 and the control plate 510 to move upward as a whole, the control plate 510 drives the third connecting rod 8 to move upward, and the third trapezoidal plate 10 and the fourth trapezoidal plate 11 are opposed to each other. Under the obstruction of the fourth trapezoidal plate 11, the third trapezoidal plate 10 moves toward the control plate 510, and the third trapezoidal plate 10 drives the second trapezoidal plate 9 to move toward each other through the third connecting rod 8. The second trapezoidal plate 9 and the first trapezoidal plate 7 are opposed to each other to drive the first trapezoidal plate 7 and the control box 62 to move upward relative to the control plate 510, and the control plate 510 drives the triangular plate 67 to move upward, thereby making the triangular plate 67 enter the striped pattern on the outside of the wheel.

[0017] like Fig. 9 , Fig.10A dent detection assembly for the wheel side wall is installed on the upper side of the third connecting rod 8, and the dent detection assembly includes a fourth connecting rod 13 fixedly installed on the upper side of the third connecting rod 8, a second connecting plate 14 is fixedly connected to the upper side of the fourth connecting rod 13, a square rod 15 is slidably connected inside the second connecting plate 14, a fourth connecting plate 18 is fixedly connected to the outer side of the square rod 15, a fifth connecting rod 19 is fixedly connected to the inner side of the fourth connecting plate 18, a fifth connecting plate 22 is rotatably sleeved on the outer side of the fifth connecting rod 19, and a plurality of sixth connecting rods 23 are fixedly connected to the outer side of the fifth connecting plate 22, The third springs 20 are fixedly connected to both outer sides of the fifth connecting plate 22, the side wall of the fifth connecting plate 22 is fixedly connected to the arc rod 24, the arc rod 24 runs through the fourth connecting plate 18, the upper side of the fourth connecting plate 18 is slidably connected to the third pressure sensor 25, the fourth spring 26 is fixedly connected between the third pressure sensor 25 and the fifth connecting plate 22, the button plate 21 is fixedly connected to both outer sides of the fifth connecting plate 22, the third connecting plate 16 is fixedly connected to the outer side of the square rod 15, and the second spring 17 is fixedly connected between the third connecting plate 16 and the second connecting plate 14; First, the third pressure sensor 25 is a commonly used pressure sensor in real life. It is a device or apparatus that can sense pressure signals and convert pressure signals into usable output electrical signals according to certain rules. Secondly, the button panel 21 is a commonly used control switch in real life, and the button panel 21 is connected to the display screen in the analysis component 3 through a wire. When the button panel 21 is activated, that is, when an external force squeezes the button panel 21, the button panel 21 is activated, and the signal can be converted into an electrical signal and transmitted to the display screen. This is a common method of controlling switches and no unnecessary elaboration is made. Then, in the process of starting the hydraulic rod 502 to drive the movable box 505 and the control panel 510 to move upward as a whole, the control panel 510 drives the third connecting rod 8 to move upward. In the process of the third connecting rod 8 driving the upward movement, it will also move in the direction close to the control panel 510. The third connecting rod 8 drives the second connecting plate 14 to move as a whole. When the hydraulic rod 502 drives the movable box 505 to move to a suitable working position, the sixth connecting rod 23 and the fifth connecting plate 22 do not collide with the wheel. In the process of detecting the wheel, When the motor 506 is started, it will also drive the control board 510 to move up and down relative to the moving box 505. During the up and down movement of the control board 510, the third connecting rod 8 will be driven to move further, thereby causing the fifth connecting plate 22 and the sixth connecting rod 23 to enter the depression of the wheel side wall, and then the fifth connecting plate 22 will rotate around the fifth connecting rod 19. While the fifth connecting plate 22 compresses the fourth spring 26, the third pressure sensor 25 is activated, thereby sending out a corresponding electrical signal. When the sixth connecting rod 23 enters the defect on the outside of the wheel, the corresponding third spring 20 will be compressed or stretched until the sixth connecting rod 23 moves out of the defect on the outside of the wheel. During this process, the fifth connecting plate 22 drives the button plate 21 to move. If the electrical signal emitted by the third pressure sensor 25 changes periodically and the button plate 21 does not emit an electrical signal, it means that the outer surface of the wheel is normally depressed. If the electrical signal emitted by the third pressure sensor 25 changes unpredictably and the button plate 21 is activated, it means that the outer surface of the wheel is abnormally depressed and corresponding detection is required.

[0018] In the present invention, the car to be inspected is driven to the upper side of the locator body 1, the hydraulic lifting rod is started, the car to be inspected is lifted, and then the car is simply fixed by using a fixture, the four wheels of the car are positioned, and then the car is photographed by the first camera and the second camera to perform corresponding inspection operations. In this process, not only can the shooting angle be adjusted by adjusting the first camera and the second camera, but also the shooting inspection operation of the bottom of the car can be completed by multiple sets of mirrors. The above are all existing technologies and no redundant elaboration is made; When the hydraulic rod 502 is not started, the locator body 1, the moving box 505, and the control panel 510 are at the same level. When the car needs to be inspected, the car is driven on the upper side of the control panel 510 so that the two wheels of the car are located between each set of two cams 516. At this time, the car and the cams 516 are against each other (ignoring the obstruction effect of the cams 516 on the moving car in this process). In the process of inspecting the car, the hydraulic rod 502 is started so that the hydraulic rod 502 drives the moving plate 503 and the moving rod 504 to move upward, and the moving rod 504 drives the moving box 505 to move upward. The moving box 505 drives the control panel 510 to move upward through the moving frame 511. The control panel 510 and the wheel are against each other and compress the wheel to simulate the wheel use environment (in this process, due to the heavy weight of the car as a whole, the control panel 510 moving upward will only compress the wheel and will not move the car as a whole upward). At this time, the motor 506 is started, and the motor 506 drives the reciprocating screw 507 to rotate. The reciprocating screw 507 drives the moving block 508 to move left and right. The moving block 508 drives the control board 510 to move left and right through the fixed rod 509. The moving control board 510 drives the wheel to rotate back and forth, thereby simulating the driving of the wheel. At this time, when the first camera and the second camera are used to perform shooting and detection operations, the accuracy of the detection results can be improved. In the rotation process of the reciprocating screw 507, the reciprocating screw 507 drives the cam 516 to rotate. When the cam 516 and the first connecting plate 513 are against each other, the first connecting plate 513 and the first connecting rod 512 will be driven to move upward relative to the fixed rod 509 as a whole. The first connecting plate 513 drives the control board 510 to move upward through the second connecting rod 514, thereby causing the pressure of the control board 510 on the wheel to change, thereby further improving the accuracy of the wheel detection results. After the moving box 505 moves upward relative to the locator body 1, the control box 62 and the triangular plate 67 will move upward as a whole, the control board 510 drives the third connecting rod 8 to move upward, the third trapezoidal plate 10 and the fourth trapezoidal plate 11 are opposed, and under the obstruction of the fourth trapezoidal plate 11, the third trapezoidal plate 10 moves toward the control board 510, and the third trapezoidal plate 10 drives the second trapezoidal plate 9 to move toward each other through the third connecting rod 8, the second trapezoidal plate 9 and the first trapezoidal plate 7 are opposed to drive the first trapezoidal plate 7 and the control box 62 to move upward relative to the control board 510, and the control board 510 drives the triangular plate 67 to move upward, so that the triangular plate 67 enters the outer side of the wheel. In the stripe pattern, the middle triangular plate 67 extends into the stripe pattern, and the outer triangular plate 67 abuts against the side wall of the wheel. At this time, the triangular plate 67 compresses the second pressure sensor 65, and the second pressure sensor 65 sends a corresponding electrical signal. At the same time, the triangular plates 67 at the outer ends abut against the side wall of the wheel, and the first sensor also sends a corresponding electrical signal. Then the vehicle body can be started to rotate the wheel. During the rotation of the wheel, the triangular plate 67 is always located in the stripe pattern on the outer side of the wheel. During this process, if the electrical signals sent by the first pressure sensor 66 and the second pressure sensor 65 change, it means that the stripe pattern of the wheel is abnormal or damaged, and corresponding detection operations need to be performed; In the process of starting the hydraulic rod 502 to drive the movable box 505 and the control board 510 to move upward as a whole, the control board 510 drives the third connecting rod 8 to move upward. In the process of the third connecting rod 8 driving the upward movement, it will also move in the direction close to the control board 510. The third connecting rod 8 drives the second connecting plate 14 to move as a whole. When the hydraulic rod 502 drives the movable box 505 to move to a suitable working position, the sixth connecting rod 23 and the fifth connecting plate 22 do not collide with the wheel. In the process of wheel detection, when the motor 506 is started, it will also drive the control board 510 to move up and down relative to the movable box 505. In the process of the control board 510 moving up and down, it will drive the third connecting rod 8 to move further, thereby causing the fifth connecting plate 22 and the sixth connecting rod 23 to enter the recessed position of the wheel side wall. The fifth connecting plate 22 will rotate around the fifth connecting rod 19 as the center. When the fifth connecting plate 22 compresses the fourth spring 26, the third pressure sensor 25 is activated, thereby sending out a corresponding electrical signal. When the sixth connecting rod 23 enters the defect on the outside of the wheel, it will compress or stretch the corresponding third spring 20 until the sixth connecting rod 23 moves out of the defect on the outside of the wheel. During this process, the fifth connecting plate 22 drives the button plate 21 to move. If the electrical signal emitted by the third pressure sensor 25 changes periodically and the button plate 21 does not emit an electrical signal, it means that the outer surface of the wheel is normally sunken. If the electrical signal emitted by the third pressure sensor 25 changes unpredictably and the button plate 21 is activated, it means that the outer surface of the wheel is abnormally sunken and corresponding detection is required.

Claims

1. A tire measuring device for a four-wheel aligner in an automobile test platform, comprising an aligner body (1), a detection and shooting component (2), an analysis component (3) and a lifting component (4), characterized in that: A simulation component (5) is fixedly installed on the upper side of the positioning instrument body (1), and the simulation component (5) includes two groups of through grooves (501) opened on the upper side of the positioning instrument body (1). A hydraulic rod (502) is fixedly connected inside the positioning instrument body (1), and the output end of the hydraulic rod (502) is fixedly connected to a moving plate (503), and the upper side of the moving plate (503) is fixedly connected to a moving rod (504), and the upper side of the moving rod (504) is fixedly connected to a moving box (505), and a motor (506) is fixedly connected inside the moving box (505), and the output end of the motor (506) is fixedly connected to a reciprocating screw rod (507), and the outer side of the reciprocating screw rod (507) is threadedly sleeved with a moving block (508), and the moving block (508) and the moving box (505) are slidably connected, and the moving block (508) A fixing rod (509) is fixedly connected to the upper side of the fixing rod (509), a control plate (510) is slidably sleeved on the outer side of the fixing rod (509), a moving frame (511) is fixedly connected inside the moving box (505), the control plate (510) is located on the upper side of the moving frame (511) and abuts against the moving frame (511), a first connecting rod (512) is slidably connected to the side wall of the fixing rod (509), a first connecting plate (513) is fixedly connected to the outer side of the first connecting rod (512), a plurality of second connecting rods (514) are fixedly connected between the upper side of the first connecting plate (513) and the control plate (510), two cams (516) are fixedly sleeved on the outer side of the reciprocating screw rod (507), four protrusions (515) are fixedly connected to the upper side of the control plate (510), and the four protrusions (515) are arranged in groups of two.

2. The tire measuring device of a four-wheel aligner in a vehicle test platform according to claim 1, characterized in that: A stripe pattern detection assembly (6) for the inner surface of the tire is installed on the upper side of the control panel (510). The stripe pattern detection assembly (6) comprises two detection grooves (61) opened on the upper side of the control panel (510). The two detection grooves (61) are respectively located between each group of two protrusions (515). A control box (62) is slidably connected in the detection groove (61). A plurality of slide plates (63) are slidably connected in the control box (62). A first spring (64) is fixedly connected between the plurality of slide plates (63). The same first spring (64) is fixedly connected between the two side slide plates (63) and the control box (62). A first pressure sensor (66) is fixedly connected between the plurality of slide plates (63). The same first pressure sensor (66) is fixedly connected between the two side slide plates (63) and the control box (62). A second pressure sensor (65) is fixedly connected to the upper side of the plurality of groups of slide plates (63). A triangular plate (67) is fixedly connected to the upper side of the second pressure sensor (65).

3. The tire measuring device of a four-wheel aligner in a vehicle test platform according to claim 2, characterized in that: The lower side of the control box (62) is fixedly connected to a first trapezoidal plate (7), the side wall of the detection slot (61) is slidably connected to a plurality of sets of third connecting rods (8), the plurality of sets of third connecting rods (8) penetrate the side wall of the detection slot (61), one end of the plurality of sets of third connecting rods (8) located inside the detection slot (61) is fixedly connected to a second trapezoidal plate (9), and one end of the plurality of sets of third connecting rods (8) located outside the detection slot (61) is fixedly connected to a third trapezoidal plate (10), and two fourth trapezoidal plates (11) are symmetrically fixedly connected inside the through slot (501).

4. The tire measuring device of a four-wheel aligner in a vehicle test platform according to claim 3, characterized in that: A dent detection assembly (12) for the wheel side wall is mounted on the upper side of the third connecting rod (8), the dent detection assembly (12) comprising a fourth connecting rod (13) fixedly mounted on the upper side of the third connecting rod (8), a second connecting plate (14) fixedly connected to the upper side of the fourth connecting rod (13), a square rod (15) slidably connected inside the second connecting plate (14), a fourth connecting plate (18) fixedly connected to the outer side of the square rod (15), a fifth connecting rod (19) fixedly connected inside the fourth connecting plate (18), and a fifth connecting plate (22) rotatably sleeved on the outer side of the fifth connecting rod (19). The outer side of the fifth connecting plate (22) is fixedly connected with a plurality of sixth connecting rods (23), the outer sides of the fifth connecting plate (22) are fixedly connected with third springs (20), the side wall of the fifth connecting plate (22) is fixedly connected with an arc rod (24), the arc rod (24) passes through the fourth connecting plate (18), the upper side of the fourth connecting plate (18) is slidably connected with a third pressure sensor (25), a fourth spring (26) is fixedly connected between the third pressure sensor (25) and the fifth connecting plate (22), and the outer sides of the fifth connecting plate (22) are fixedly connected with a button plate (21).

5. The tire measuring device of a four-wheel aligner in a vehicle test platform according to claim 4, characterized in that: A third connecting plate (16) is fixedly connected to the outer side of the square rod (15), and a second spring (17) is fixedly connected between the third connecting plate (16) and the second connecting plate (14).

6. The tire measuring device of a four-wheel aligner in a vehicle test platform according to claim 3, characterized in that: The surfaces of the first trapezoidal plate (7), the second trapezoidal plate (9), the third trapezoidal plate (10), and the fourth trapezoidal plate (11) are all smooth.

7. The tire measuring device of a four-wheel aligner in an automobile test platform according to claim 1, characterized in that: Anti-slip rubber pads are fixedly mounted on the surfaces of the protrusions (515).

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