Automobile four-wheel positioning electric three-jaw clamp

Abstract

The invention relates to the technical field of four-wheel positioning, and particularly discloses an automobile four-wheel positioning electric three-jaw clamp which comprises a clamp body, a rotating gear, a motor driving module and a plurality of fixed guide rails are arranged on the clamp body, and the rotating gear is rotatably mounted in the center of the clamp body; the fixed guide rails are distributed on the outer side of the clamp body in a triangular vertex mode, telescopic clamping jaws are installed on the fixed guide rails in a sliding mode, the telescopic clamping jaws are connected with the rotating gear through connecting rods, and the motor driving module is in transmission connection with the rotating gear. The motor driving module is arranged to drive the rotating gear, and the rotating gear drives the telescopic clamping jaw to perform telescopic motion, so that the telescopic clamping jaw can electrically clamp the wheel, the stability is higher, the center point can be automatically found, the obtained parameters are more accurate, errors are avoided, the use is more convenient, the efficiency is higher, and the practicability is higher. And the user experience effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of four-wheel alignment, and in particular to an electric three-claw clamp for aligning four wheels of an automobile. Background Art

[0002] The four-wheel aligner is used to detect the alignment parameters of the wheels of the car and compare them with the original design parameters. The most important angle parameters include toe angle, camber angle, kingpin inclination angle, kingpin caster angle and other parameters. After obtaining the parameters, the user is guided to adjust the wheel alignment parameters accordingly to meet the original design requirements, so as to achieve the ideal driving performance of the car, that is, easy operation, stable and reliable driving, and reduced tire wear. The four-wheel alignment fixture is a device that connects the sensors, lasers or reflectors of the four-wheel aligner to the wheels, and is an indispensable device in the four-wheel aligner.

[0003] After searching, the Chinese invention patent with patent application number CN202210213906.6 discloses a four-wheel alignment fixture, which belongs to the field of four-wheel alignment technology. The fixture includes a frame, an intermediate seat, two sliders, and a screw rod that penetrates the two sliders and is threadedly connected to the two sliders. The intermediate seat is provided with an equipment hole, and the screw rod is provided with a handwheel. Each slider is provided with two symmetrical extension blocks, and the extension blocks are provided with mounting holes. The mounting holes are detachably connected with claws for clamping the wheel hub. The distances between the claws on the two extension blocks and the equipment holes are equal. The mounting holes are arc-shaped slot holes. The corresponding mounting holes on the two extension blocks are located on the same circle, and the center of the circle is located on the central axis of the equipment hole. The position of the claws of the invention can be adjusted and moved, so that the fixture can easily and quickly avoid the slight deformation of the wheel hub; the parallelism between the fixture and the wheel hub is better and the fixture is more stable; a ratchet device for unidirectional restriction of the screw rod is provided to form a fool-proof design to prevent wrong operation from causing damage to the fixture, the four-wheel alignment equipment or the wheel hub.

[0004] Another example is a Chinese invention patent application with patent application number CN202410737385.3, which discloses a three-claw four-wheel alignment fixture, which relates to the technical field of four-wheel alignment fixtures, including a three-claw main body, three claw structures and three wall-holding structures, wherein a rotating handle is movably connected to the left side of the top of the outer surface of the three-claw main body, and the three-claw main body includes three sliding tracks, and the claw structure and the wall-holding structure are both slidably connected to the bottom end of the sliding track. The invention can make the active helical gear drive the passive helical gear to rotate by rotating the rotating handle, and under the transmission of the central shaft, the active bevel gear can drive the passive bevel gear to rotate, thereby driving the transmission screw to rotate, realizing the control of the movement of the claw structure and the wall-holding structure, thereby facilitating the clamping of the wheel hub when the car is doing four-wheel alignment, making it more convenient to fix the wheel hub, and compared with the traditional four-point clamp, the structure is simpler, the fixing accuracy is higher, and the operation is more convenient.

[0005] Although the existing four-wheel alignment fixture can meet basic usage requirements, it clamps the edge of the wheel hub by claws when in use, and the wheel hub is generally made by die-casting, with an uneven surface, which leads to inaccurate parameters obtained, and the center point cannot be found or is inaccurate, and there is an error in the wheelbase. In addition, the tightness of the clamping is adjusted manually, which is inconvenient to use, inefficient, and has a poor user experience. Summary of the invention

[0006] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, an electric three-jaw clamp for four-wheel alignment of automobiles is provided. A motor drive module is set to drive a rotating gear, and the rotating gear drives the telescopic claw to perform telescopic movement, thereby realizing the electric clamping of the telescopic claw to the wheel. The invention has higher stability and can automatically find the center point. The parameters obtained are more accurate and errors are avoided. The invention is more convenient to use, more efficient and has a good user experience.

[0007] In order to solve the above technical problems, the technical solution of the present invention is:

[0008] An electric three-jaw clamp for four-wheel alignment of an automobile comprises a clamp body, on which a rotating gear, a motor drive module and a plurality of fixed guide rails are arranged, the rotating gear is rotatably mounted at the center of the clamp body, the vertices of the fixed guide rails are in the form of a triangle and are distributed on the outside of the clamp body, a telescopic claw is slidably mounted on the fixed guide rail, the telescopic claw is connected to the rotating gear via a connecting rod, and the motor drive module is transmission-connected to the rotating gear.

[0009] Preferably, the motor drive module includes a motor mounting frame, a drive motor and a transmission gear. The motor mounting frame is fixedly mounted on the fixture body. The drive motor and the transmission gear are both mounted on the motor mounting frame. The drive motor is transmission-connected to the transmission gear, and the transmission gear is meshingly connected to the rotating gear.

[0010] Preferably, a plurality of rotating teeth are arranged on the outer side of the rotating gear, and a plurality of transmission teeth matched with the rotating teeth are arranged on the outer side of the transmission gear.

[0011] Preferably, the telescopic claw is slidably connected to the fixed guide rail via a slider, a guide rail slot is provided on the outer side of the fixed guide rail, and a sliding buckle matched with the guide rail slot is provided on the inner side of the slider.

[0012] Preferably, the sliding block is provided with a first screw connection column, the rotating gear is provided with a second screw connection column, and the connecting rod is rotatably connected to the first screw connection column and the second screw connection column respectively.

[0013] Preferably, the telescopic claw comprises a first telescopic claw, a second telescopic claw and a third telescopic claw, and the first telescopic claw, the second telescopic claw and the third telescopic claw are arranged in sequence as vertices of an equilateral triangle.

[0014] Preferably, a fixed clamping column is provided at the end of the first telescopic clamping claw, and a rotating clamping column is provided at the ends of the second telescopic clamping claw and the third telescopic clamping claw. A plurality of clamping grooves are provided on the inner side of the fixed clamping column, and a rotating sleeve is provided on the outer side of the rotating clamping column.

[0015] Preferably, a cover plate is provided on the clamp body, the cover plate is located above the rotating gear, and a plurality of handles are provided on the cover plate, and the handles correspond to the fixed guide rails one by one.

[0016] By adopting the above technical scheme, the present invention provides an electric three-jaw clamp for four-wheel positioning of automobile, which has the following beneficial effects: a rotating gear, a motor drive module and a plurality of fixed guide rails are arranged on the clamp body of the electric three-jaw clamp for four-wheel positioning of automobile, the rotating gear is rotatably installed at the center of the clamp body, the vertices of the fixed guide rail are distributed on the outside of the clamp body in a triangular shape, a telescopic claw is slidably installed on the fixed guide rail, the telescopic claw is connected to the rotating gear through a connecting rod, the motor drive module is connected to the rotating gear in transmission, and the rotating gear is driven by the motor drive module to perform clockwise rotation. The needle rotates clockwise or counterclockwise, and the rotating gear drives the telescopic claw to perform telescopic movement, thereby realizing the electric clamping of the telescopic claw to the wheel, so that the telescopic claw clamps the outside of the tire, thereby obtaining the data of the tire side, and the obtained parameters are more accurate, without clamping the wheel hub, with higher stability and the ability to automatically find the center point to avoid errors. During operation, it is sufficient to control the forward and reverse rotation of the motor drive module, without manual clamping, and it is more convenient to use. It can not only greatly improve the efficiency of four-wheel alignment, but also greatly improve user satisfaction and good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 A three-dimensional diagram of the present invention from another angle;

[0019] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0020] In the figure, 1-clamp body, 2-rotating gear, 3-motor drive module, 4-fixed guide rail, 5-telescopic claw, 6-connecting rod, 7-motor mounting frame, 8-drive motor, 9-transmission gear, 10-rotating tooth, 11-transmission tooth, 12-slider, 13-guide rail slide groove, 14-sliding buckle, 15-first screw connecting column, 16-second screw connecting column, 17-first telescopic claw, 18-second telescopic claw, 19-third telescopic claw, 20-fixed clamping column, 21-rotating clamping column, 22-clamping groove, 23-rotating sleeve, 24-cover plate, 25-handle. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] like Figure 1-3As shown, the electric three-jaw clamp for four-wheel positioning of automobile includes a clamp body 1, on which a rotating gear 2, a motor drive module 3 and a plurality of fixed guide rails 4 are arranged, the rotating gear 2 is rotatably mounted at the center of the clamp body 1, the fixed guide rails 4 are triangular vertices distributed on the outside of the clamp body 1, a telescopic claw 5 is slidably mounted on the fixed guide rail 4, the telescopic claw 5 is connected to the rotating gear 2 through a connecting rod 6, and the motor drive module 3 is transmission-connected to the rotating gear 2. It can be understood that the components such as the clamp body 1, the fixed guide rail 4 and the telescopic claw 5 can all be made of magnesium alloy and titanium alloy. The magnesium alloy is light in weight and easy to take, while the titanium alloy has higher hardness, lighter weight and strong durability.

[0025] Specifically, the motor drive module 3 includes a motor mounting frame 7, a drive motor 8 and a transmission gear 9. The motor mounting frame 7 is fixedly mounted on the fixture body 1. The drive motor 8 and the transmission gear 9 are both mounted on the motor mounting frame 7. The drive motor 8 is in transmission connection with the transmission gear 9, and the transmission gear 9 is meshed with the rotating gear 2. The outer side of the rotating gear 2 is provided with a plurality of rotating teeth 10, and the outer side of the transmission gear 9 is provided with a plurality of transmission teeth 11 adapted to the rotating teeth 10. It can be understood that the drive motor 8 can be a general bidirectional motor, etc., and its output shaft can perform forward and reverse motion, thereby driving the transmission gear 9 to perform forward and reverse motion, and then driving the rotating gear 2 to rotate clockwise or counterclockwise. The drive motor 8 can be connected to a universal constant voltage module, a lithium battery and an anti-blocking module, etc. The lithium battery is used for power supply, the constant voltage module is used to adjust the clamping speed of the clamp by controlling the output voltage, and control the clamping speed and torque (clamping force); the anti-blocking module is used to protect the drive motor from overloading, and the set current is set to automatically cut off the power to the drive motor when clamped to the required position to prevent the motor from overheating and burning out.

[0026] Specifically, the telescopic claw 5 is slidably connected to the fixed guide rail 4 through a slider 12, a guide rail slot 13 is provided on the outer side of the fixed guide rail 4, and a sliding buckle 14 adapted to the guide rail slot 13 is provided on the inner side of the slider 12; a first screw connection column 15 is provided on the slider 12, a second screw connection column 16 is provided on the rotating gear 2, and the connecting rod 6 is rotatably connected to the first screw connection column 15 and the second screw connection column 16. It can be understood that by providing the slider 12 as a connection medium between the telescopic claw 5 and the fixed guide rail 4, the telescopic stability of the telescopic claw 5 can be further increased.

[0027] Specifically, the telescopic claw 5 includes a first telescopic claw 17, a second telescopic claw 18 and a third telescopic claw 19, which are arranged in order at the vertices of an equilateral triangle; a fixed clamping column 20 is arranged at the end of the first telescopic claw 17, and a rotating clamping column 21 is arranged at the ends of the second telescopic claw 18 and the third telescopic claw 19, and a plurality of clamping grooves 22 are provided on the inner side of the fixed clamping column 20, and a rotating sleeve 23 is sleeved on the outer side of the rotating clamping column 21. It can be understood that the friction with the tire surface is increased by providing the clamping groove 22, and the clamping stability is further increased; the rotating sleeve 23 can be conveniently adjusted before clamping; when in use, the first telescopic claw 17 is first fixed on the tire, and when started, the second telescopic claw 18 and the third telescopic claw 19 shrink toward the center point, so as to automatically find the center point.

[0028] Specifically, the clamp body 1 is provided with a cover plate 24, which is located above the rotating gear 2, and the cover plate 24 is provided with a plurality of handles 25, which correspond one to one with the fixed guide rail 4. It can be understood that the handles 25 can facilitate the taking and operation of the three-jaw clamp.

[0029] It can be understood that the present invention has a reasonable design and a unique structure. The motor drive module 3 is set to drive the rotating gear 2 to rotate clockwise or counterclockwise, and then the rotating gear 2 drives the telescopic claw 5 to perform telescopic movement, thereby realizing the electric clamping of the telescopic claw 5 on the wheel, so that the telescopic claw 5 clamps the outer side of the tire. Compared with the traditional clamp, the present invention obtains the data of the side of the tire by clamping the tire without clamping the wheel hub, and the obtained value is more accurate; during operation, the forward and reverse rotation of the motor drive module 3 is controlled, and there is no need for manual clamping. Each telescopic claw shrinks at the same time, automatically finds the center point, and the center point is accurate to avoid errors. It is more convenient to use, which can not only greatly improve the efficiency of four-wheel positioning, but also greatly improve the user satisfaction and user experience.

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An electric three-jaw clamp for four-wheel alignment of an automobile, comprising a clamp body, characterized in that: The clamp body is provided with a rotating gear, a motor drive module and a plurality of fixed guide rails. The rotating gear is rotatably installed at the center of the clamp body. The vertices of the fixed guide rails are triangular and distributed on the outside of the clamp body. A telescopic claw is slidably installed on the fixed guide rail. The telescopic claw is connected to the rotating gear through a connecting rod. The motor drive module is transmission connected to the rotating gear.

2. The electric three-jaw clamp for four-wheel alignment of a vehicle according to claim 1, characterized in that: The motor drive module includes a motor mounting frame, a drive motor and a transmission gear. The motor mounting frame is fixedly mounted on the fixture body. The drive motor and the transmission gear are both mounted on the motor mounting frame. The drive motor is transmission-connected to the transmission gear, and the transmission gear is meshingly connected to the rotating gear.

3. The electric three-jaw clamp for four-wheel alignment of a vehicle according to claim 1, characterized in that: A plurality of rotating teeth are arranged on the outer side of the rotating gear, and a plurality of transmission teeth matched with the rotating teeth are arranged on the outer side of the transmission gear.

4. The electric three-jaw clamp for four-wheel alignment of a vehicle according to claim 1, characterized in that: The telescopic claw is slidably connected to the fixed guide rail via a slider, a guide rail slot is provided on the outer side of the fixed guide rail, and a sliding buckle matched with the guide rail slot is provided on the inner side of the slider.

5. The electric three-jaw clamp for four-wheel alignment of a vehicle according to claim 4, characterized in that: The sliding block is provided with a first screw connection column, the rotating gear is provided with a second screw connection column, and the connecting rod is rotatably connected to the first screw connection column and the second screw connection column respectively.

6. The electric three-jaw clamp for four-wheel alignment of a vehicle according to claim 1, characterized in that: The telescopic claw comprises a first telescopic claw, a second telescopic claw and a third telescopic claw, and the first telescopic claw, the second telescopic claw and the third telescopic claw are arranged in sequence at the vertices of a regular triangle.

7. The electric three-jaw clamp for four-wheel alignment of an automobile according to claim 6, characterized in that: A fixed clamping column is arranged at the end of the first telescopic clamping claw, and a rotating clamping column is arranged at the ends of the second telescopic clamping claw and the third telescopic clamping claw. A plurality of clamping grooves are arranged on the inner side of the fixed clamping column, and a rotating sleeve is arranged on the outer side of the rotating clamping column.

8. The electric three-jaw clamp for four-wheel alignment of a vehicle according to claim 1, characterized in that: The clamp body is provided with a cover plate, the cover plate is located above the rotating gear, and the cover plate is provided with a plurality of handles, and the handles correspond to the fixed guide rails one by one.

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