CN216899659U

CN216899659U - Calibrating device of correlation sensor

Info

Publication number: CN216899659U
Application number: CN202220496662.2U
Authority: CN
Inventors: 卢亚威; 吕婷婷; 黄勇; 焦俊龙; 王建雨
Original assignee: Weihai Zhonghe Electromechanical Technology Co ltd
Current assignee: Weihai Zhonghe Electromechanical Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-05
Anticipated expiration: 2032-03-09

Abstract

The utility model relates to a calibrating device of a correlation sensor, which comprises a panel and limiting plates fixedly connected with two ends of the panel, wherein the two limiting plates can be respectively embedded into a lower concealed type mounting groove and an upper concealed type mounting groove on the inner side of a left arc-shaped protective plate or a right arc-shaped protective plate of a tire pattern wear degree detecting component; when the calibrating device is embedded into the right arc-shaped guard plate, the center zero point of the first cross center line corresponds to the geometric center of the receiving end of the first infrared sensor. Compared with the prior art, the method has the advantages of simple operation, convenient use, high calibration efficiency and high precision; the darkroom is simple to manufacture, low in cost and free of special fields.

Description

Calibrating device of correlation sensor

Technical Field

The utility model relates to automobile detection equipment, in particular to a calibration device of a correlation sensor.

Background

The tire tread wear degree detection component 100 shown in fig. 1-4 comprises an arch bridge body 101, wherein a left arc-shaped protection plate 102 and a right arc-shaped protection plate 105 are arranged on two sides of the arch bridge body 101, the inner sides of the left arc-shaped protection plate 102 and the right arc-shaped protection plate 105 are respectively provided with a lower concealed installation groove 103 and an upper concealed installation groove 104, a first infrared sensor transmitting end 201 and a second infrared sensor receiving end 202 'are respectively arranged in the lower concealed installation groove 103 and the upper concealed installation groove 104 of the left arc-shaped protection plate 102, and a first infrared sensor receiving end 201' and a second infrared sensor transmitting end 202 are respectively arranged in the lower concealed installation groove 103 and the upper concealed installation groove 104 of the right arc-shaped protection plate 105. When a tire of a vehicle runs through the arch bridge body 101 between the left arc-shaped guard plate 102 and the right arc-shaped guard plate 105, the first infrared sensor transmitting end 201 and the second infrared sensor transmitting end 202 emit infrared rays, when the first infrared sensor receiving end 201 'and the second infrared sensor receiving end 202' on the opposite sides receive the infrared rays, tire pattern abrasion is serious, and the tire needs to be replaced. Therefore, the assembly of 2-group correlation infrared sensors is very accurate, otherwise false alarms occur.

However, since infrared light spots emitted by the emitting end of the infrared sensor are very weak, naked eyes are hardly visible under natural light, and the infrared light spots can only be adjusted by experience at present, beam deviation of the correlation sensor often occurs, so that the tire detection equipment cannot detect the tire, and the adjustment efficiency is very low.

SUMMERY OF THE UTILITY MODEL

In order to overcome one of the defects or shortcomings of the prior art, the utility model discloses a calibrating device of a correlation sensor, which comprises a panel and limiting plates fixedly connected with two ends of the panel, wherein the two limiting plates can be respectively embedded into a lower hidden type mounting groove and an upper hidden type mounting groove on the inner side of a left arc-shaped protection plate or a right arc-shaped protection plate of a tire pattern wear degree detecting component, the bottom surface of the panel is abutted against the bridge floor of an arch bridge body, the outer surface of the panel is provided with a first cross alignment line and a second cross alignment line, and when the calibrating device is embedded into the left arc-shaped protection plate, the zero alignment point of the second cross alignment line corresponds to the geometric center of a receiving end of a second infrared sensor; when the calibrating device is embedded into the right arc-shaped guard plate, the center zero point of the first cross center line corresponds to the geometric center of the receiving end of the first infrared sensor.

Furthermore, the cross center line I and the cross center line II are provided with scales and scale values with the same precision, the precision of the scales is 0.25 degrees, the range in the up-down direction is-0.5 degrees to 2.5 degrees, and the range in the front-back direction is-1.75 degrees to 2.0 degrees.

Further, still include the workstation, tire pattern wear degree detects the part and can lie on the mesa of workstation flatly.

Furthermore, the darkroom comprises a frame and a black cloth mantle covered on the frame, wherein the darkroom can coat the left arc-shaped guard plate and the right arc-shaped guard plate.

Furthermore, a window for allowing the sight of a calibrator to enter is formed in the black cloth mantle.

Compared with the prior art, the utility model has the advantages of simple operation, convenient use, high calibration efficiency and precision; the darkroom has simple manufacture and low cost, and does not need special fields.

Drawings

Fig. 1 is a schematic view of the structure of a tire pattern wear degree detecting member.

Fig. 2 is a partially enlarged view of fig. 1.

Fig. 3 is a schematic view of the tire pattern wear degree detecting member from another view angle.

Fig. 4 is a partially enlarged view of fig. 2.

FIG. 5 is a schematic diagram of the calibration device of the present invention.

FIG. 6 is a schematic view of the structure of the darkroom of the present invention.

FIG. 7 is a schematic structural diagram of the calibration of the second emitting end of the infrared sensor on the worktable.

Fig. 8 is a partially enlarged view of fig. 7.

Fig. 9 is a schematic structural diagram of the calibration of an emission end of the infrared sensor on the worktable.

Fig. 10 is a partially enlarged view of fig. 9.

FIG. 11 is a schematic view of the structure when calibrated by a darkroom on a worktable.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 5, referring to fig. 1 to 4, a calibration apparatus for a correlation sensor, where the calibration apparatus 1 includes a panel 1-1, and two limit plates 1-2 fixedly connected to two ends of the panel 1-1, the two limit plates 1-2 can be respectively embedded into a lower concealed installation groove 103 and an upper concealed installation groove 104 inside a left arc-shaped guard plate 102 or a right arc-shaped guard plate 105 of a tire pattern wear degree detection component 100, a bottom surface of the panel 1-1 abuts against a bridge floor of an arch bridge body 101, an outer surface of the panel 1-1 has a cross alignment line 1-3 and a cross alignment line two 1-4, and when the calibration apparatus 1 is embedded into the left arc-shaped guard plate 102, a zero point of the cross alignment line two 1-4 corresponds to a geometric center of a receiving end 202' of an infrared sensor; when the calibration device 1 is embedded in the right arc-shaped guard plate 105, the zero point of the cross center line 1-3 corresponds to the geometric center of a receiving end 201' of the infrared sensor. The first cross center line 1-3 and the second cross center line 1-4 are provided with scales and scale values with the same precision, the precision of the scales is 0.25 degrees, the range of the upper direction and the lower direction is-0.5 degrees to 2.5 degrees, and the range of the front direction and the rear direction is-1.75 degrees to 2.0 degrees.

During calibration, the calibration device can be inserted into the lower concealed installation groove 103 and the upper concealed installation groove 104 on the inner side of the left arc-shaped guard plate 102, the second infrared sensor transmitting end 202 in the right arc-shaped guard plate 105 is electrified, the position of a light spot transmitted by the second infrared sensor transmitting end 202 is observed, if the position of the light spot is not located at the centroid zero point of the second cross centroid line 1-4, the angle of the second infrared sensor transmitting end 202 is adjusted until the light spot is aligned with the centroid zero point of the second cross centroid line 1-4, and then the calibration of the infrared sensor is finished.

And then inserting a calibration device into the lower concealed installation groove 103 and the upper concealed installation groove 104 on the inner side of the right arc-shaped guard plate 105, electrifying the emitting end 201 of the infrared sensor in the left arc-shaped guard plate 102, observing the position of a light spot emitted by the emitting end 201 of the infrared sensor, and adjusting the angle of the emitting end 201 of the infrared sensor if the position of the light spot is not at the zero point of the cross alignment line 1-3 until the light spot is aligned with the zero point of the cross alignment line 1-3, so that the calibration of the infrared sensor is finished.

Example 2, as shown in fig. 6 to 11, since the operation is inconvenient on the ground and the position of the light spot is not easily observed in a workshop with sufficient light due to weak light of the infrared light path, a workbench 200 and a darkroom 300 are added, and the tire pattern wear degree detecting member with two arc-shaped guard plates 102 can be placed on the table top of the workbench 200 for calibration.

The darkroom 300 can cover the tire pattern wear degree detection part 100 in the range of the left arc-shaped guard plate 102 and the right arc-shaped guard plate 105, the darkroom 300 comprises a frame 301 and a black cloth mantle 302 covered on the frame, and a calibrator can probe the head into the darkroom to observe the value so as to judge whether the angle is qualified.

In another preferred embodiment, the black cloth veil 302 is provided with a window 303 for allowing the alignment staff to look into. When the calibrator pastes the head on the black cloth mantle 302, the outside light is blocked from entering the darkroom 300, and the round spots of the light beam can be observed more clearly.

The calibration process is similar to that of embodiment 1 and will not be described in detail.

Claims

1. A calibration device for a correlation sensor, comprising: the calibration device (1) comprises a panel (1-1) and limiting plates (1-2) fixedly connected with two ends of the panel (1-1), the two limiting plates (1-2) can be respectively embedded into a lower hidden type mounting groove (103) and an upper hidden type mounting groove (104) on the inner side of a left arc-shaped protection plate (102) or a right arc-shaped protection plate (105) of a tire pattern wear degree detection component (100), the bottom surface of the panel (1-1) is abutted against the bridge floor of an arch bridge body (101), the outer surface of the panel (1-1) is provided with a cross alignment line I (1-3) and a cross alignment line II (1-4), and when the calibration device (1) is embedded into the left arc-shaped protection plate (102), the alignment zero point of the cross alignment line II (1-4) corresponds to the geometric center of a second infrared sensor receiving end (202'); when the calibration device (1) is embedded into the right arc-shaped guard plate (105), the alignment zero point of the cross alignment line I (1-3) corresponds to the geometric center of a receiving end (201') of the infrared sensor.

2. The calibration device for correlation sensor according to claim 1, wherein: the first cross center line (1-3) and the second cross center line (1-4) are provided with scales and scale values with the same precision, the precision of the scales is 0.25 degrees, the range of the upper direction and the lower direction is-0.5 degrees to 2.5 degrees, and the range of the front direction and the rear direction is-1.75 degrees to 2.0 degrees.

3. A calibration device for correlation sensor according to claim 1 or 2, wherein: the tire pattern wear degree detection device further comprises a workbench (200), and the tire pattern wear degree detection component (100) can be flatly placed on the table top of the workbench (200).

4. A calibration device for correlation sensor according to claim 3, wherein: the darkroom (300) can cover the left arc-shaped guard plate (102) and the right arc-shaped guard plate (105), and the darkroom (300) comprises a frame (301) and a black cloth mantle (302) covered on the frame.

5. The calibration device for correlation sensor according to claim 4, wherein: a window (303) for allowing the sight of a calibrator to enter is arranged on the black cloth mantle (302).