A four-wheel alignment apparatus inspection device

Abstract

The utility model discloses a four wheel positioning equipment inspection device, including the disc for installing target board. The inspection device still includes the rectangular frame, and the rectangular frame includes the horizontal shaft of two sides parallel arrangement before and after and with the vertical connection of horizontal shaft end two mutually parallel longitudinal connecting plate. The disc is fixed in two ends of horizontal shaft, and the rectangular frame is placed on the ground through the base connected in the two ends of horizontal shaft. The inspection device still includes the diagonal plate of diagonal line direction of rectangular frame and is used for installing the positioning pin of the positioning pin of support leg rod top, and the both ends bottom surface of diagonal plate is equipped with the positioning hole for with positioning pin cooperation respectively. The utility model solves the problem that each time installation of existing calibration device needs repeatedly adjusting each module, and the problem of low efficiency of operation, and the problem of existing electronic interference.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile testing device especially, relates to a portable four -wheel alignment precision calibration device. BACKGROUND

[0002] The mainstream four-wheel alignment in the current market mostly adopts 3D positioning system based on camera technology, and the precision calibration of the equipment is a core link. Before leaving the factory, these alignment instruments will go through strict precision calibration process to ensure that their performance meets the standard. However, the four-wheel alignment may be misaligned due to bumping and other reasons during transportation or use, so it needs to be calibrated regularly.

[0003] The utility model discloses a portable four -wheel alignment calibration device discloses a kind of four simulation wheel modules, and four simulation wheel modules include alignment laser, and the laser of alignment laser forms the rectangular area where four wheels are, cover whole vehicle four-wheel range;Simulation wheel module includes wheel positioning parameter simulation mechanism, position adjusting mechanism and base support mechanism, wheel positioning parameter simulation mechanism is set in position adjusting mechanism, and position adjusting mechanism is set in base support mechanism, the device is designed with split, convenient to carry and combination.But, the device needs to repeatedly adjust each module to ensure that the relative position between the four modules meets the precision requirement each time installation, it is tedious to operate, and the efficiency is low.In addition, the device also contains motor and other components, and there is electronic interference problem. UTILITY MODEL CONTENT

[0004] The utility model provides a four-wheel positioning equipment inspection device, and the purpose is to solve the problem that the existing calibration device needs to repeatedly adjust each module to ensure that the relative position between the four modules meets the precision requirement each time installation, it is tedious to operate, and the efficiency is low, and the problem of electronic interference.

[0005] The utility model technical scheme is as follows: a four-wheel positioning equipment inspection device, including the disc for installing target plate, the inspection device also includes rectangular frame, and the rectangular frame includes the horizontal shaft that two sides in front and back are arranged in parallel and two mutually parallel longitudinal connecting plates vertically connected with the end of horizontal shaft;Two ends of each horizontal shaft are installed with one disc respectively, and the rectangular frame is placed on the ground through the base connected to the two ends of horizontal shaft, and two annular grooves are respectively arranged at the two ends of horizontal shaft, one annular groove is matched with the round hole on the top of supporting leg rod of base, and the other annular groove is matched with the round hole on the end of longitudinal connecting plate;The inspection device also includes diagonal plate placed along diagonal line direction of rectangular frame and positioning pin for installing on the top of supporting leg rod, and the bottom surface of two ends of diagonal plate is respectively equipped with positioning hole for matching with positioning pin.

[0006] Specifically, the body top end of the leg rod is connected with a top connecting block by a bolt, and the groove at the top of the body of the leg rod and the groove at the bottom of the top connecting block enclose a circular hole matched with the annular groove of the horizontal shaft; the top of the top connecting block is provided with a threaded hole, and the screw rod at the lower part of the positioning pin is used to connect with the threaded hole.

[0007] Further, a locking handle is further included, and a screw rod of the locking handle is used to connect with a threaded hole on the top connecting block.

[0008] Further, the diagonal plate includes two inner end connecting plates fixedly connected by four bolts arranged in a matrix, and a positioning hole is arranged at the bottom surface of the outer end of the two connecting plates.

[0009] Further, the body of the longitudinal connecting plate is connected with an end connecting block at both ends by a bolt, and the groove at the end of the body of the longitudinal connecting plate and the groove at the inner end of the end connecting block enclose a circular hole matched with the annular groove of the horizontal shaft.

[0010] Compared with the prior art, the utility model has the following positive effects:

[0011] (1) The rectangular frame formed by the diagonal plate is quickly positioned, the perpendicularity between the horizontal shaft and the longitudinal connecting plate is ensured, and therefore the relative position accuracy of each disc meets the calibration requirement. Meanwhile, the diagonal plate is clamped and positioned by plugging and pulling connection of the positioning hole at the bottom thereof and the positioning pin fixedly installed at the top of the leg rod, and the structure is simple and the operation is convenient.

[0012] (2) The device does not have a motor and other electronic components, and can ensure the reliability of the device and avoid electronic interference.

[0013] (3) The device sets the disc rotating with the horizontal shaft at the two ends of the front and rear horizontal shafts, builds a simulated measuring vehicle chassis, rotates the horizontal shaft to drive the target plate fixed on the two ends of the disc to rotate synchronously, easily simulates the trolley step, and can accurately and efficiently complete the precision inspection of the four-wheel positioning equipment. Further, the locking handle set at the top of the leg rod can lock the horizontal shaft so that it cannot rotate, and the target plate is fixed at a suitable angle.

[0014] (4) The device adopts a split design, and each part is mechanically connected and can be quickly assembled and disassembled, and can be stored in the box after disassembly, and is convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is an exploded view of the utility model;

[0016] Figure 2 is Figure 1 is a local enlarged view of node A in the middle;

[0017] Figure 3 For Figure 1 Local amplification diagram of the B node;

[0018] Figure 4 The schematic diagram of the utility model after installing the hanger is shown in the figure;

[0019] Figure 5 The working state diagram when the utility model is used for inspection is shown in the figure;

[0020] Figure 6 The schematic diagram of the utility model after being split and put into the box is shown in the figure.

[0021] In the figure, 1, leg rod; 1-1, top connecting block; 2, leg seat; 3, horizontal shaft; 4, longitudinal connecting plate; 4-1, end connecting block; 5, disc; 6, positioning pin; 7, locking handle; 8, diagonal plate; 9, hanger; 10, target plate; 11, four-wheel alignment instrument. DETAILED DESCRIPTION

[0022] The technical scheme and technical effect of the utility model will be described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] As Figure 1 A four-wheel alignment equipment inspection device, comprising a rectangular frame, the rectangular frame comprises two parallel horizontal shafts 3 at the front and back and two mutually parallel longitudinal connecting plates 4 vertically connected with the ends of the horizontal shafts 3, and the rectangular frame is placed on the ground through the base connected to the two ends of the horizontal shaft 3. The device further comprises a disc 5 fixed at the two ends of the horizontal shaft 3, the disc 5 is used to install a hanger 9, and the hanger 9 is installed with a target plate 10 used for calibrating four-wheel alignment instruments.

[0024] Two annular grooves are arranged at the two ends of the horizontal shaft 3, one annular groove is used to connect with the round hole at the top of the leg rod 1, and the other annular groove is used to connect with the round hole at the end of the longitudinal connecting plate 4. Specifically, Figure 2 The top end of the body of the leg rod 1 is bolted with a top connecting block 1-1, and the groove at the top of the body of the leg rod 1 and the groove at the bottom of the top connecting block 1-1 are enclosed to form a round hole matched with the annular groove of the horizontal shaft 3. The body of the longitudinal connecting plate 4 is bolted with an end connecting block 4-1 at both ends. The groove at the end of the body of the longitudinal connecting plate 4 and the groove at the inner end of the end connecting block 4-1 are enclosed to form a round hole matched with the annular groove of the horizontal shaft 3. The horizontal shaft 3 can rotate in the round holes of the longitudinal connecting plate 4 and the leg rod 1, and drive the disc 5 to rotate synchronously to simulate the process of wheel rotation when pushing the cart. The rotating connection between the round hole and the annular groove can be lubricated through the lubricating holes on the top connecting block 1-1 and the end connecting block 4-1.

[0025] The small gap between the longitudinal connecting plate 4 and the transverse axis 3 will cause a certain deviation in the perpendicularity between the longitudinal connecting plate 4 and the transverse axis 3. Furthermore, since the longitudinal connecting plate 4 is quite long, this perpendicularity deviation will result in a significant deviation in the relative position between the front and rear discs 5. Figure 1 To ensure perpendicularity between the two components, the inspection device also includes a diagonal plate 8 for connecting to the top ends of the two diagonally opposite support rods 1 of the rectangular frame. The diagonal plate 8 comprises two overlapping connecting plates, each with a mating overlap at its inner end, which is securely fixed by four bolts arranged in a matrix. Positioning holes are provided on the bottom surface of the outer ends of the two connecting plates.

[0026] like Figure 2 and Figure 3 The top of the top connecting block 1-1 is provided with a threaded hole for installing the positioning pin 6. The positioning pin 6 includes a screw connected to the threaded hole and a smooth rod that is plugged into the positioning hole at the end of the diagonal plate 8.

[0027] The testing device also includes a locking handle 7, the screw of which is used to connect to a threaded hole on the top connecting block 1-1.

[0028] The threaded hole can also be used as a lubrication hole.

[0029] The assembly steps of the testing device are described in detail below:

[0030] First, assemble the body of the support leg 1 and the support leg base 2 and place them in the preset position. Then, install the two horizontal shafts 3 on the top of the corresponding support leg 1 body through the corresponding top connecting blocks 1-1. Install the bodies of the two longitudinal connecting plates 4 on the horizontal shafts 3 through the corresponding end connecting blocks 4-1. Next, install the positioning pins 6 onto the two top connecting blocks 1-1 located diagonally. Then, engage the assembled diagonal plate 8 with the two positioning pins 6, adjusting the perpendicularity between the horizontal shaft 3 and the longitudinal connecting plate 4 by moving and tapping while engaging. Then, install the two positioning pins 6 onto the two top connecting blocks 1-1 on the other diagonal, engaging and adjusting again. Repeat this process until the diagonal plate 8 can be smoothly inserted and removed from the positioning pins 6 on both diagonals, indicating that the two diagonals are of equal length. At this point, tighten the bolts on the top connecting blocks 1-1 and the end connecting blocks 4-1 to complete the assembly of the standard rectangular frame. Generally, it only takes 2-3 snaps to complete the adjustment and ensure verticality, which is much more efficient than existing technologies.

[0031] In order to avoid deformation of the rectangular frame in the detection process, when the perpendicularity of the rectangular frame is adjusted, the diagonal plate 8 and the positioning pin 6 can be kept connected, and at the same time, the locking handle 7 is installed in the threaded hole of the other two top connecting blocks 1-1, so that the horizontal shaft 3 is fixed, then the hanging rack 9 with the target plate 10 is installed on the disc 5, as shown in Figure 4 .

[0032] As Figure 5 , when the four-wheel alignment instrument 11 is calibrated by using the device, first, the four-wheel alignment instrument 11 is started, then the locking handle 7 is loosened, the horizontal shaft 3 is rotated to drive the disc 5 to rotate synchronously, and the process of pushing the cart forward is simulated. When the target plate 10 rotates to a predetermined angle, the locking handle 7 is tightened to lock the position of the horizontal shaft 3. The 3D camera of the four-wheel alignment instrument 11 continuously photographs the target plate 10 on the four discs 5, then the computer analyzes and calculates the shape change of the geometric figure on the photographed target plate 10 through software, obtains corresponding parameters, and compares with standard values. If the error exceeds the allowable range, the four-wheel alignment instrument 11 needs to be recalibrated.

[0033] All parts of the device are assembled by mechanical connection, there is no electronic interference, and precision calibration can be realized without complex debugging.

[0034] The device is designed in a split manner, and has many parts, so, as shown in Figure 6 , an aviation aluminum box with high structural strength and convenient carrying is used for storage, which can protect the internal parts from being damaged during transportation. The box body is provided with a customized partition assembly to ensure that each part has a fixed position and can be stored in the aluminum box in an orderly manner, which facilitates quick searching and taking, and avoids confusion or loss.

[0035] It should be noted that for those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. The scope of the present application is defined by the claims rather than the above description.

Claims

1. A four-wheel alignment equipment testing device comprising a disc (5) for mounting a target plate, characterized in that: The inspection device further comprises a rectangular frame, the rectangular frame comprises two horizontal shafts (3) arranged in parallel on the front and back sides and two mutually parallel longitudinal connecting plates (4) connected perpendicularly to the ends of the horizontal shafts (3); one of the discs (5) is mounted at each end of each horizontal shaft (3), the rectangular frame is placed on the ground through the bases connected to the two ends of the horizontal shafts (3), each of the two ends of the horizontal shaft (3) is provided with two annular grooves, one annular groove is matched with the circular hole at the top of the supporting leg (1) of the base, and the other annular groove is matched with the circular hole at the end of the longitudinal connecting plate (4); the inspection device further comprises a diagonal plate (8) placed along the diagonal direction of the rectangular frame and a positioning pin (6) used for being mounted at the top of the supporting leg (1), and the bottom surfaces of the two ends of the diagonal plate (8) are respectively provided with positioning holes used for being matched with the positioning pin (6).

2. The four-wheel alignment equipment verification apparatus of claim 1, wherein: The top end of the body of the supporting leg (1) is connected with a top connecting block (1-1) through a bolt, and the groove at the top of the body of the supporting leg (1) and the groove at the bottom of the top connecting block (1-1) enclose a circular hole matched with the annular groove of the horizontal shaft (3). The top of the top connecting block (1-1) is provided with a threaded hole, and the screw rod at the lower part of the positioning pin (6) is used for being connected with the threaded hole.

3. The four-wheel alignment equipment verification apparatus of claim 2, wherein: The locking handle (7) is further included, and the screw rod of the locking handle (7) is used for being connected with the threaded hole on the top connecting block (1-1).

4. The four-wheel alignment equipment verification apparatus of claim 1, wherein: The diagonal plate (8) comprises two connecting plates fixedly connected through four bolts arranged in a matrix, and the positioning holes are arranged at the bottom surfaces of the outer ends of the two connecting plates.

5. The four-wheel alignment equipment verification apparatus of claim 1, wherein: The two ends of the body of the longitudinal connecting plate (4) are connected with end connecting blocks (4-1) through bolts, and the groove at the end of the body of the longitudinal connecting plate (4) and the groove at the inner end of the end connecting block (4-1) enclose a circular hole matched with the annular groove of the horizontal shaft (3).

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