Vehicle overall dimension detector calibration device

Abstract

The utility model discloses a calibration device for a vehicle overall dimension detector, which comprises a plurality of groups of calibration measurement mechanisms, and each group of calibration measurement mechanism comprises a magnetic suction cup used for being magnetically sucked on a vehicle, a supporting assembly arranged on the magnetic suction cup and a measurement installation assembly arranged on the supporting assembly. The supporting assembly is connected with the magnetic suction cup through an alignment adjusting structure capable of adjusting the measurement installation assembly to be close to or away from the vehicle. The measuring and mounting assembly comprises a first measuring and mounting rod and a second measuring and mounting rod, the first measuring and mounting rod is fixedly connected with the supporting assembly, and the second measuring and mounting rod is telescopically arranged in an inner cavity of the first measuring and mounting rod; and a laser range finder or a laser reflection target is arranged at one end, far away from the first measurement mounting rod, of the second measurement mounting rod. According to the detector calibration device, the position relation of the detector calibration device can be adjusted, so that the corresponding calibration devices are located on the same straight line, and smooth completion of measurement work is ensured.

Description

Technical Field

[0001] The utility model relates to a measurement calibration device, in particular to a calibration device for a vehicle external dimension detector. Background Art

[0002] A vehicle dimension measuring instrument is an intelligent device used to automatically measure a vehicle's external dimensions (length, width, height, and other parameters). Its main feature is the automatic collection of vehicle dimension data. After computer processing, the data is compared with the vehicle's original data or standard dimensions to determine whether the vehicle's external dimensions exceed specified limits, ensuring compliance with design standards and legal and regulatory requirements. Each vehicle dimension measuring instrument requires calibration before testing.

[0003] Currently, most related technologies simply use a measuring rod and a laser rangefinder to calibrate the vehicle's external dimensions (length, width, height, and other parameters). The laser rangefinder measures the distance between the ends of the measuring rod (length and width) and the distance between the ends of the measuring rod and the ground (height) as the reference values ​​of the vehicle's external dimensions. These values ​​are then compared with the length, width, and height measurements of the vehicle's external dimensions detected by a vehicle external dimension detector, and the indication error is calculated to achieve metrological calibration of the vehicle external dimension measuring instrument. However, in actual measurements, the vehicle's external body is usually not completely regular, and the front and rear of the vehicle may not be in the same vertical plane, resulting in the calibration devices at different ends not being in the same straight line, making it difficult to successfully complete the measurement work. Utility Model Content

[0004] The purpose of the present invention is to overcome the above-mentioned problems and provide a vehicle external dimension detector calibration device, which can adjust its own position relationship so that the corresponding calibration devices are located on the same straight line, ensuring the smooth completion of the measurement work.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A vehicle external dimension detector calibration device includes a plurality of calibration measurement mechanisms, each of which includes a magnetic chuck for magnetically adsorbing on a vehicle, a support assembly provided on the magnetic chuck, and a measurement mounting assembly provided on the support assembly;

[0007] The support assembly is connected to the magnetic chuck via an alignment adjustment structure that can adjust the measuring mounting assembly to move closer to or away from the vehicle;

[0008] The measuring mounting assembly includes a first measuring mounting rod and a second measuring mounting rod. The first measuring mounting rod is fixedly connected to the support assembly, and the second measuring mounting rod is telescopically arranged in the inner cavity of the first measuring mounting rod. A laser rangefinder or a laser reflection target is provided on the end of the second measuring mounting rod away from the first measuring mounting rod.

[0009] The working principle of the above-mentioned vehicle external dimension detector calibration device is as follows:

[0010] When measuring the length and width of a vehicle, a calibration measuring mechanism with a laser rangefinder and a calibration measuring mechanism with a laser reflective target are respectively selected; after determining the installation position, the calibration measuring mechanism is horizontally placed close to the vehicle and then fixed to the vehicle via a magnetic suction cup, so that the laser rangefinder and laser reflective target of the corresponding calibration measuring mechanism are arranged relative to each other, and ensure that the corresponding calibration measuring mechanism is located on the same horizontal plane; if the laser rangefinder and laser reflective target of the corresponding calibration measuring mechanism are not in the same straight line, it is necessary to adjust the distance of one of the calibration measuring mechanisms relative to the vehicle, and by operating the alignment adjustment structure on the calibration measuring mechanism in the corresponding direction, the laser rangefinder and laser reflective target of the corresponding calibration measuring mechanism are located in the same straight line; by pushing the second measurement installation rod in the corresponding direction, the corresponding laser rangefinder and laser reflective target can be placed in the specified position for laser ranging.

[0011] When measuring the height of a vehicle, a calibration measuring mechanism with a laser rangefinder can be selected. The calibration measuring mechanism is placed vertically close to the vehicle and then fixed to the vehicle via a magnetic suction cup so that the laser rangefinder is located at the top. By pushing the second measurement mounting rod in the corresponding direction, the laser rangefinder can be placed in the designated position for laser ranging.

[0012] In a preferred embodiment of the present invention, four magnetic chucks are provided and distributed in a rectangular shape, so as to obtain sufficient stability.

[0013] In a preferred embodiment of the present invention, a magnetic switch is provided on the magnetic chuck, and the surface of the magnetic chuck is covered with a rubber sleeve, so as to effectively protect the paint surface of the vehicle to be tested and avoid damaging the vehicle body.

[0014] In a preferred embodiment of the present invention, the support assembly includes a bracket, a movable adjustment bracket and a fixed mounting bracket;

[0015] One end of the bracket is fixedly connected to the magnetic chuck;

[0016] The alignment adjustment structure includes an adjusting bolt and a limiting collar. The tail of the adjusting bolt passes through the movable adjustment frame and is connected to the other end of the bracket through a threaded connection. The limiting collar is fixedly arranged on the adjusting bolt. The movable adjustment frame is located between the head of the adjusting bolt and the limiting collar.

[0017] The fixed mounting frame is fixedly connected to the movable adjustment frame, and the first measuring mounting rod is fixedly mounted on the fixed mounting frame. With this structure, when the distance of the measuring mounting assembly relative to the vehicle needs to be adjusted, the adjusting bolt can be rotated in the corresponding direction, and the adjusting bolt drives the movable adjustment frame to move, so that the corresponding laser rangefinder and laser reflective target are aligned in a straight line.

[0018] Furthermore, two brackets and two fixed mounting brackets are provided, and the arrangement direction of the two brackets is parallel to the length direction of the first measurement mounting rod, which can improve the stability of the measurement mounting assembly and improve the measurement accuracy.

[0019] Furthermore, a reinforcement beam is provided between the two brackets to increase the rigidity of the support assembly, which can further improve the measurement accuracy.

[0020] Furthermore, the fixed mounting bracket is fixedly connected to the first measuring mounting rod via fastening bolts.

[0021] Furthermore, the fixed mounting bracket is provided with a locking bolt, the first measuring mounting rod is provided with a plurality of locking holes, and the second measuring mounting rod is provided with a plurality of locking slots. In the locked state, the tail of the locking bolt extends through the locking hole and into the locking slot. With this structure, after adjusting the extension and retraction of the second measuring mounting rod, the locking bolt can be used to lock the current position, preventing the first measuring mounting rod from moving.

[0022] In a preferred embodiment of the present invention, a spirit level is provided on the first measuring mounting rod, which can provide a horizontal reference for the first measuring mounting rod when measuring the length and width of the vehicle, and provide a vertical reference for the first measuring mounting rod when measuring the height of the vehicle.

[0023] In a preferred embodiment of the present invention, the laser rangefinder and the laser reflective target are both arranged on different first measurement mounting rods via mounting plates.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The vehicle outline dimension detector calibration device of the present invention can adjust the laser rangefinder and laser reflective target of the corresponding calibration measuring mechanism to be on the same straight line by setting an alignment adjustment structure that can adjust the measuring installation component to be close to or away from the vehicle, thereby ensuring smooth completion of the measurement work.

[0026] 2. The second measuring mounting rod can be telescopically moved along the first measuring mounting rod, and the position of the laser rangefinder and the laser reflective target can be adjusted to meet the calibration requirements and improve the calibration accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the vehicle external dimension detector calibration device of the present utility model.

[0028] Figure 2 The figure is a schematic diagram of the three-dimensional structure of one set of calibration and measurement mechanisms of the vehicle external dimension detector calibration device of the present invention.

[0029] Figure 3 for Figure 2 Magnified view of the X in . DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0031] See also Figure 1-2 The vehicle external dimension detector calibration device of this embodiment includes several sets of calibration and measuring mechanisms, each set of calibration and measuring mechanisms includes a magnetic suction cup 1 for magnetically sucking on the vehicle, a support assembly arranged on the magnetic suction cup 1, and a measurement installation assembly arranged on the support assembly; wherein, the magnetic suction cup 1 is provided with four and distributed in a rectangular shape, which can obtain sufficient stability.

[0032] See also Figure 1-2 The magnetic suction cup 1 is provided with a magnetic switch, and the surface of the magnetic suction cup 1 is wrapped with a rubber sleeve. In this way, the paint surface of the vehicle to be tested can be effectively protected to avoid damage to the vehicle body.

[0033] See also Figure 1-2 The measurement mounting assembly includes a first measurement mounting rod 2 and a second measurement mounting rod 3. The first measurement mounting rod 2 is fixedly connected to the support assembly. The second measurement mounting rod 3 is telescopically disposed within the inner cavity of the first measurement mounting rod 2. A laser rangefinder 4 or a laser reflective target 5 is provided on the end of the second measurement mounting rod 3 remote from the first measurement mounting rod 2. Specifically, the measurement mounting assembly is made of a lightweight alloy material, has a length of no less than 1000 mm, and an end cross-section of no less than 50 mm x 50 mm.

[0034] See also Figure 1-3The support assembly is connected to the magnetic chuck 1 through an alignment adjustment structure that allows the adjustable measuring mounting assembly to move closer to or further away from the vehicle. The support assembly includes a bracket 6, a movable adjustment frame 7, and a fixed mounting frame 8. One end of the bracket 6 is fixedly connected to the magnetic chuck 1. The alignment adjustment structure includes an adjusting bolt 9 and a limiting collar 10. The tail of the adjusting bolt 9 passes through the movable adjustment frame 7 and is connected to the other end of the bracket 6 by a threaded connection. The limiting collar 10 is fixedly mounted on the adjusting bolt 9. The movable adjustment frame 7 is located between the head of the adjusting bolt 9 and the limiting collar 10. The fixed mounting frame 8 is fixedly connected to the movable adjustment frame 7, and the first measuring mounting rod 2 is fixedly mounted on the fixed mounting frame 8. Through the above structure, when the distance of the measuring mounting assembly relative to the vehicle needs to be adjusted, the adjusting bolt 9 can be rotated in the corresponding direction, and the adjusting bolt 9 drives the movable adjustment frame 7 to move, so that the corresponding laser rangefinder 4 and laser reflective target 5 are located on the same straight line.

[0035] Furthermore, two brackets 6 and two fixed mounting brackets 8 are provided, and the arrangement direction of the two brackets 6 is parallel to the length direction of the first measurement mounting rod 2. This can improve the stability of the measurement mounting assembly installation and improve the measurement accuracy.

[0036] Furthermore, a reinforcing beam 11 is provided between the two brackets 6 to increase the rigidity of the support assembly and further improve the measurement accuracy.

[0037] Furthermore, the fixed mounting bracket 8 is fixedly connected to the first measuring mounting rod 2 via a fastening bolt 12 .

[0038] Furthermore, the fixed mounting bracket 8 is provided with a locking bolt 13. The first measuring mounting rod 2 is provided with a plurality of locking holes 2-1, and the second measuring mounting rod 3 is provided with a plurality of locking slots 3-1. In the locked state, the tail of the locking bolt 13 extends through the locking holes 2-1 and into the locking slots 3-1. With this structure, after adjusting the extension and retraction of the second measuring mounting rod 3, the locking bolt 13 can be used to lock the current position, preventing the first measuring mounting rod 2 from moving.

[0039] See also Figure 1-2 The first measuring mounting rod 2 is provided with a spirit level 14 (bubble spirit level), which can provide a horizontal reference for the first measuring mounting rod 2 when measuring the length and width of the vehicle, and provide a vertical reference for the first measuring mounting rod 2 when measuring the height of the vehicle.

[0040] See also Figure 1-2 The laser rangefinder 4 and the laser reflective target 5 are both arranged on different first measurement mounting rods 2 through mounting plates 15 .

[0041] See also Figure 1-3The working principle of the vehicle outline dimension detector calibration device of this embodiment is as follows:

[0042] When measuring the length and width of a vehicle, a calibration measuring mechanism with a laser rangefinder 4 and a calibration measuring mechanism with a laser reflective target 5 are respectively selected; after determining the installation position, the calibration measuring mechanism is placed horizontally close to the vehicle and then fixed to the vehicle via the magnetic suction cup 1, so that the laser rangefinder 4 and the laser reflective target 5 of the corresponding calibration measuring mechanism are arranged relative to each other, and it is ensured that the corresponding calibration measuring mechanism is located on the same horizontal plane; if the laser rangefinder 4 and the laser reflective target 5 of the corresponding calibration measuring mechanism are not on the same straight line, it is necessary to adjust the distance of one of the calibration measuring mechanisms relative to the vehicle, and by operating the alignment adjustment structure on the calibration measuring mechanism in the corresponding direction, the laser rangefinder 4 and the laser reflective target 5 of the corresponding calibration measuring mechanism are located on the same straight line; by pushing the second measurement mounting rod 3 in the corresponding direction, the corresponding laser rangefinder 4 and the laser reflective target 5 can be placed in the specified position for laser ranging.

[0043] When measuring the height of a vehicle, a calibration measuring mechanism with a laser rangefinder 4 can be selected. The calibration measuring mechanism is placed vertically close to the vehicle and then fixed to the vehicle via a magnetic suction cup 1 so that the laser rangefinder 4 is located above. By pushing the second measuring mounting rod 3 in the corresponding direction, the laser rangefinder 4 can be placed in the specified position for laser ranging.

[0044] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A vehicle external dimension detector calibration device, characterized in that: It includes several sets of calibration and measurement mechanisms, each set of calibration and measurement mechanisms includes a magnetic chuck for magnetically adsorbing on a vehicle, a support assembly arranged on the magnetic chuck, and a measurement installation assembly arranged on the support assembly; The support assembly is connected to the magnetic chuck via an alignment adjustment structure that can adjust the measuring mounting assembly to move closer to or away from the vehicle; The measuring mounting assembly includes a first measuring mounting rod and a second measuring mounting rod. The first measuring mounting rod is fixedly connected to the support assembly, and the second measuring mounting rod is telescopically arranged in the inner cavity of the first measuring mounting rod. A laser rangefinder or a laser reflection target is provided on the end of the second measuring mounting rod away from the first measuring mounting rod.

2. The vehicle external dimension detector calibration device according to claim 1, characterized in that: The magnetic chucks are provided with four and distributed in a rectangular shape.

3. The vehicle external dimension detector calibration device according to claim 1, characterized in that: The magnetic suction cup is provided with a magnetic switch, and the surface of the magnetic suction cup is wrapped with a rubber sleeve.

4. The vehicle external dimension detector calibration device according to claim 1, characterized in that: The support assembly includes a bracket, a movable adjustment frame and a fixed installation frame; One end of the bracket is fixedly connected to the magnetic chuck; The alignment adjustment structure includes an adjusting bolt and a limiting collar. The tail of the adjusting bolt passes through the movable adjustment frame and is connected to the other end of the bracket through a threaded connection. The limiting collar is fixedly arranged on the adjusting bolt. The movable adjustment frame is located between the head of the adjusting bolt and the limiting collar. The fixed mounting frame is fixedly connected to the movable adjustment frame, and the first measuring mounting rod is fixedly arranged on the fixed mounting frame.

5. The vehicle external dimension detector calibration device according to claim 4, characterized in that: There are two brackets and two fixed mounting brackets, and the arrangement direction of the two brackets is parallel to the length direction of the first measuring mounting rod.

6. The vehicle external dimension detector calibration device according to claim 5, characterized in that: A reinforcement beam is provided between the two brackets.

7. The vehicle external dimension detector calibration device according to claim 4, characterized in that: The fixed mounting bracket is fixedly connected to the first measuring mounting rod via fastening bolts.

8. The vehicle external dimension detector calibration device according to claim 4, characterized in that: The fixed mounting frame is provided with a locking bolt, the first measuring mounting rod is provided with a plurality of locking holes, and the second measuring mounting rod is provided with a plurality of locking slots; in a locked state, the tail of the locking bolt passes through the locking hole and extends into the locking slot.

9. The vehicle external dimension detector calibration device according to claim 1, characterized in that: A level is provided on the first measuring mounting rod.

10. The vehicle external dimension detector calibration device according to claim 1, characterized in that: The laser rangefinder and the laser reflective target are both arranged on different first measurement mounting rods through mounting plates.

Images