Automobile four-wheel aligner

Abstract

The utility model discloses a kind of automobile four-wheel alignment gauges, including the mounting bracket of T-shaped structure, four positioning mechanisms, two optical mechanisms and industrial computer, two optical mechanisms are respectively arranged in the one end of mounting bracket horizontal arm and symmetrically arranged in the two sides of mounting bracket longitudinal arm and with industrial computer electric connection, four positioning mechanisms are symmetrically arranged in the two sides of the longitudinal arm, and four positioning mechanisms are all arranged in the inboard of two optical mechanisms.The utility model can ensure that the center of the positioning of four wheels in the automobile repair process always falls in the design center of automobile, optical mechanism and reflecting plate always keep stable and correct relative position, ensure the accuracy of reflected light path and give accurate wheel adjustment suggestion, and can reduce or shield ambient light to the stray light interference of receiving component, avoid light path calculation error, ensure the accuracy of measurement result.

Description

Technical Field

[0001] This utility model relates to the field of wheel alignment device technology, and in particular to a four-wheel alignment instrument for automobiles. Background Technology

[0002] Wheel alignment is a routine inspection and repair procedure for automobiles. It involves measuring wheel angle data using a wheel alignment device and comparing it with the original factory data to provide repair suggestions and opinions.

[0003] Currently, most wheel alignment systems employ a combination of a wheel alignment mechanism and an optical mechanism. The alignment mechanism is fixed to the wheel, while the optical mechanism emits light towards it and converts the received reflected information into an electrical signal, which is then fed back to the main unit. The relative positional accuracy of the alignment mechanism and the optical mechanism directly affects the wheel alignment accuracy. In practice, vehicles are usually suspended in the air during wheel inspections. Maintaining a stable relative position between the alignment mechanism and the optical mechanism under actual working conditions has always been a direction for improvement in wheel alignment detection devices. Utility Model Content

[0004] In view of this, the present invention provides a four-wheel alignment machine for automobiles, comprising a T-shaped mounting bracket, four positioning mechanisms, two optical mechanisms, and an industrial control computer. The two optical mechanisms are respectively located at one end of the transverse arm of the mounting bracket and symmetrically arranged on both sides of the longitudinal arm of the mounting bracket, and are electrically connected to the industrial control computer. The four positioning mechanisms are symmetrically arranged in pairs on both sides of the longitudinal arm, and each of the four positioning mechanisms is located inside the two optical mechanisms; wherein: Each of the positioning mechanisms includes a first bracket disposed on one side wall of the longitudinal arm and arranged parallel to the transverse arm, and a positioning frame installed at its end and extending longitudinally. Each positioning frame is provided with a reflector extending obliquely away from the longitudinal arm. Each reflector can receive light emitted by the optical mechanism on the same side and reflect it back to the optical mechanism. Each of the optical mechanisms includes a light-generating component and a receiving component. Each light-generating component can emit light toward the two reflectors on its side, and each receiving component can receive the light reflected by the two reflectors on its side, convert it into an electrical signal, and transmit it to the industrial control computer.

[0005] Furthermore, each of the positioning frames includes two longitudinally extending positioning rods, with the reflector plate detachably fixed at the middle of the two positioning rods. Two positioning seats are symmetrically arranged on both sides of the reflector plate. The two positioning seats are slidably mounted on the two positioning rods and are connected to a driving mechanism for transmission. They can slide towards or away from each other on the positioning rods under the drive of the mechanism. Each positioning seat is provided with a positioning foot that extends obliquely toward the longitudinal arm, and each positioning foot is provided with one or more positioning components for securing the wheel.

[0006] Furthermore, each of the positioning seats has a Z-shaped structure, with its middle part slidingly sleeved on the two positioning rods, and its two ends symmetrically arranged and each provided with a positioning foot.

[0007] Furthermore, the driving mechanism includes a double-ended screw that passes through the positioning seat and extends longitudinally. Both ends of the double-ended screw are mounted on a mounting plate and slidably connected thereto. Each mounting plate is detachably fixed to one end of the two positioning rods. One end of the double-ended screw passes through one of the mounting plates and is drivenly connected to a knob. The two threads on the double-ended screw have opposite directions of rotation, and each thread is provided with a nut. Each nut is drivenly connected to one of the positioning seats.

[0008] Furthermore, a second bracket can be detachably fixed to the middle of the two positioning rods, and a reflector plate can be detachably fixed to the second bracket, with a reflective area formed at the reflective end of each reflector plate.

[0009] Furthermore, each of the optical mechanisms includes a lamp housing disposed at one end of the transverse arm and covering the light generating component and the receiving component, wherein the light emitted by each light generating component and the reflected light can pass through the lamp housing.

[0010] Furthermore, the longitudinal arm and the transverse arm are detachably fixed together, and the longitudinal arm is equipped with the industrial control computer and a positioning component for fixing the transverse arm and the mounting bracket.

[0011] Furthermore, the longitudinal arm is also equipped with a display device that is electrically connected to the industrial control computer.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by symmetrically arranging the four positioning mechanisms for positioning the wheels on both sides of the longitudinal arm and symmetrically arranging the two optical mechanisms at both ends of the transverse arm, it can not only ensure that the center of the positioning of the four wheels always falls on the design center of the car and is not affected by the state of the car during positioning, but also ensure that the optical mechanism and the reflector always maintain a stable and correct relative position, thereby ensuring the accuracy of the reflected light path and providing accurate wheel adjustment suggestions; by covering each optical mechanism with a lamp housing, the interference of ambient light on the receiving component can be reduced or shielded, avoiding errors in optical path calculation and ensuring the accuracy of measurement results. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of this embodiment; Figure 2 This is a front view of this embodiment; Figure 3 This is a partially exploded structural diagram of the positioning frame and reflector in this embodiment.

[0014] Reference numerals: 100, mounting bracket; 110, transverse arm; 120, longitudinal arm; 200, positioning mechanism; 300, optical mechanism; 400, industrial control computer; 500, display device; 10, first bracket; 20, positioning frame; 21, positioning rod; 22, positioning seat; 24, positioning foot; 25, second bracket; 1, double-ended screw; 2, mounting plate; 3, knob; 4, nut; 30, reflector; 40, light generating component; 50, receiving component; 60, lamp housing; 70, positioning element. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0017] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] like Figure 1-2 As shown, the automotive four-wheel alignment machine includes a T-shaped mounting bracket 100, four alignment mechanisms 200, two optical mechanisms 300, and an industrial control computer 400. The two optical mechanisms 300 are respectively located at one end of the transverse arm 110 of the mounting bracket and symmetrically arranged on both sides of the longitudinal arm 120 of the mounting bracket, and are electrically connected to the industrial control computer 400. The four alignment mechanisms 200 are symmetrically arranged in pairs on both sides of the longitudinal arm 120, and each of the four alignment mechanisms 200 is located inside the two optical mechanisms 300. Wherein: Each positioning mechanism 200 includes a first bracket 10 disposed on one side wall of the longitudinal arm 120 and arranged parallel to the transverse arm 110, and a positioning frame 20 installed at its end and extending longitudinally. Each positioning frame 20 is provided with a reflector 30 extending obliquely in a direction away from the longitudinal arm 120. Each reflector 30 can receive light emitted by the optical mechanism 300 on the same side as it and can reflect it back to the optical mechanism 300. Each optical mechanism 300 includes a light generating component 40 and a receiving component 50. Each light generating component 40 can emit light towards the two reflectors 30 on its side, and each receiving component 50 can receive the light reflected by the two reflectors 30 on its side and convert it into an electrical signal and transmit it to the industrial control computer 400. Each optical mechanism 300 includes a lamp housing 60 located at one end of the transverse arm 110 and covering the light generating component 40 and the receiving component 50. The light emitted by each light generating component 40 and the reflected light can pass through the lamp housing 60.

[0019] like Figure 3As shown, each positioning frame 20 includes two longitudinally extending positioning rods 21. A reflector plate 30 is detachably fixed to the middle of the two positioning rods 21. Two positioning seats 22 are symmetrically arranged on both sides of the reflector plate 30. The two positioning seats 22 are slidably mounted on the two positioning rods 21 and are connected to a driving mechanism. They can slide towards or away from each other on the positioning rods 21 under the drive of the mechanism. Each positioning seat 22 is provided with a positioning foot 24 extending obliquely toward the longitudinal arm 120. Each positioning foot 24 is provided with one or more positioning components for securing the wheel (not shown in the figure). In this embodiment, each positioning seat 22 has a Z-shaped structure. Its middle part is slidably sleeved on the two positioning rods 21. Its two ends are symmetrically arranged and each is provided with a positioning foot 24. A second bracket 25 is detachably fixed to the middle of the two positioning rods 21. A reflector plate 30 is detachably fixed to the second bracket 25. A reflective area is formed at the reflective end of each reflector plate 30. In application, the tilt angle of the reflector 30 and the shape and area of ​​its reflective region can be reasonably set according to the position of the optical mechanism 300 on the transverse arm 110 and its relative position to the positioning mechanism, so as to ensure that both emitting plates 30 located on the same side of the longitudinal wall 120 receive the same light beam emitted by the light generating component 40 and can reflect the light back to the receiving component 50 on their side through the reflective region. This optical detection method is prior art, and its specific principle will not be described in detail here. In this embodiment, the receiving component 50 is a photosensor.

[0020] like Figure 3 As shown, the drive mechanism includes a double-ended screw 1 that passes through the positioning seat 22 and extends longitudinally. Both ends of the double-ended screw 1 are mounted on a mounting plate 2 and slidably connected thereto. Each mounting plate 2 is detachably fixed to one end of the two positioning rods 21. One end of the double-ended screw 1 passes through a mounting plate 2 and is drivenly connected to a knob 3. The two threads on the double-ended screw 1 have opposite directions of rotation, and each thread is provided with a nut 4. Each nut 4 is drivenly connected to a positioning seat 22.

[0021] During the wheel positioning process, the double-headed screw 1 can be rotated by the knob 3. The two screws with opposite directions on the screw will drive the two nuts 4 and the two positioning seats 22 to move in opposite directions or towards each other, so as to adapt to wheels of different sizes and press against the wheels to ensure accurate positioning.

[0022] like Figure 1 As shown, the longitudinal arm 120 and the transverse arm 110 are detachably fixed together. The longitudinal arm 120 is equipped with an industrial control computer 400 and a positioning component 70 for fixing the transverse arm 110 and the mounting bracket 100.

[0023] like Figure 1 As shown, the longitudinal arm 120 is also equipped with a display device 500 that is electrically connected to the industrial control computer 400.

[0024] In use, the longitudinal arm 120 is placed in the middle of the car chassis and extends towards the front of the vehicle. Each positioning mechanism 200 is then fixed to a wheel hub in sequence. The longitudinal arm 120 and the lateral arm 110 are then fixed in the appropriate positions using the positioning component 70. Adjustments can be made during this process to ensure that each wheel is oriented correctly and tightly connected to a positioning mechanism 20. After completion, the light generating component 40 is activated. Each light generating component 40 emits a beam of light towards the two reflectors 30 on the same side. The beam is reflected once or multiple times by the reflective area and returns, passing through the lamp housing 60 and entering its interior. The receiving component 50 receives the light signal and feeds it back to the industrial control computer 400 for analysis and calculation. The signal is compared with the pre-stored initial tire angle data to obtain the actual angle deviation of the wheel and simultaneously provide wheel correction suggestions.

[0025] This invention, by symmetrically arranging four positioning mechanisms 200 for wheel positioning on both sides of the longitudinal arm 120 and symmetrically arranging two optical mechanisms 300 at both ends of the transverse arm 110, not only ensures that the center of the four wheels is always located on the design center of the car and is not affected by the car's state during positioning, but also ensures that the optical mechanisms 300 and the reflector 30 always maintain a stable and correct relative position, thereby ensuring the accuracy of the reflected light path and providing precise wheel adjustment suggestions. By covering each optical mechanism 300 with a lamp housing 60, the interference of ambient light on the receiving component 50 can be reduced or shielded, avoiding errors in optical path calculation and ensuring the accuracy of measurement results.

[0026] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A four-wheel alignment system for automobiles, characterized in that, The system includes a T-shaped mounting bracket (100), four positioning mechanisms (200), two optical mechanisms (300), and an industrial control computer (400). The two optical mechanisms (300) are respectively located at one end of the horizontal arm (110) of the mounting bracket and symmetrically arranged on both sides of the vertical arm (120) of the mounting bracket, and are electrically connected to the industrial control computer (400). The four positioning mechanisms (200) are symmetrically arranged in pairs on both sides of the vertical arm (120), and all four positioning mechanisms (200) are located inside the two optical mechanisms (300). Each of the positioning mechanisms (200) includes a first bracket (10) disposed on one side wall of the longitudinal arm (120) and arranged parallel to the transverse arm (110) and a positioning frame (20) mounted at its end and extending longitudinally. Each positioning frame (20) is provided with a reflector (30) extending obliquely in a direction away from the longitudinal arm (120). Each reflector (30) can receive light emitted by the optical mechanism (300) on the same side and reflect it back to the optical mechanism (300). Each of the optical mechanisms (300) includes a light generating component (40) and a receiving component (50). Each light generating component (40) can emit light toward the two reflectors (30) on its side, and each receiving component (50) can receive the light reflected by the two reflectors (30) on its side and convert it into an electrical signal and transmit it to the industrial control computer (400).

2. The automotive four-wheel alignment device according to claim 1, characterized in that, Each of the positioning frames (20) includes two longitudinally extending positioning rods (21). The reflector plate (30) is detachably fixed in the middle of the two positioning rods (21). Two positioning seats (22) are symmetrically arranged on both sides of the reflector plate (30). The two positioning seats (22) are slidably mounted on the two positioning rods (21) and are connected to a drive mechanism. They can slide towards or away from each other on the positioning rods (21) under the drive of the mechanism. Each positioning seat (22) is provided with a positioning foot (24) extending obliquely toward the longitudinal arm (120). Each positioning foot (24) is provided with one or more positioning components for securing the wheel.

3. The automotive four-wheel alignment device according to claim 2, characterized in that, Each of the positioning seats (22) has a Z-shaped structure, with its middle part slidingly sleeved on the two positioning rods (21), and its two ends are symmetrically arranged and each is provided with a positioning foot (24).

4. The automotive four-wheel alignment device according to claim 3, characterized in that, The driving mechanism includes a double-ended screw (1) that passes through the positioning seat (22) and extends longitudinally. Both ends of the double-ended screw (1) are mounted on a mounting plate (2) and slidably connected thereto. Each mounting plate (2) is detachably fixed to one end of the two positioning rods (21). One end of the double-ended screw (1) passes through a mounting plate (2) and is drivenly connected to a knob (3). The two threads on the double-ended screw (1) have opposite directions of rotation, and each thread is provided with a nut (4). Each nut (4) is drivenly connected to a positioning seat (22).

5. The automotive four-wheel alignment device according to claim 4, characterized in that, A second bracket (25) can be detachably fixed to the middle of the two positioning rods (21), and a reflector (30) can be detachably fixed to the second bracket (25). Each reflector (30) has a reflective area formed at its reflective end.

6. The automotive four-wheel alignment device according to claim 1, characterized in that, Each of the optical mechanisms (300) includes a lamp housing (60) disposed at one end of the transverse arm (110) and covering the light generating component (40) and the receiving component (50), wherein the light emitted by each of the light generating components (40) and the reflected light can pass through the lamp housing (60).

7. The vehicle four-wheel alignment device according to any one of claims 1-6, characterized in that, The longitudinal arm (120) and the transverse arm (110) are detachably fixed together. The longitudinal arm (120) is provided with the industrial control computer (400) and a positioning component (70) for fixing the transverse arm (110) and the mounting bracket (100).

8. The automotive four-wheel alignment device according to claim 7, characterized in that, The longitudinal arm (120) is also provided with a display device (500) that is electrically connected to the industrial control computer (400).

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