CN113295083A - Vehicle overall dimension measuring device and measuring method - Google Patents
Vehicle overall dimension measuring device and measuring method Download PDFInfo
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- CN113295083A CN113295083A CN202110591395.7A CN202110591395A CN113295083A CN 113295083 A CN113295083 A CN 113295083A CN 202110591395 A CN202110591395 A CN 202110591395A CN 113295083 A CN113295083 A CN 113295083A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000005259 measurement Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
Abstract
The invention provides a vehicle overall dimension measuring device and a measuring method, which solve the problems of poor measuring precision and low measuring efficiency of a device or a mode for measuring the overall dimension of an electric vehicle; the vehicle overall dimension measuring device comprises a frame body and a measuring mechanism positioned on the frame body, wherein the measuring mechanism comprises a first magnetic grid ruler arranged along the X-axis direction, and/or a second magnetic grid ruler arranged along the Y-axis direction, and/or a third magnetic grid ruler arranged along the Z-axis direction; the magnetic reading heads of the first magnetic grid ruler, the second magnetic grid ruler and the third magnetic grid ruler are all fixed with positioners, and the positioners are used for positioning the initial position and the end position of the equipment to be tested in the process of moving along with the magnetic reading heads, so that the distance between the initial position and the end position is obtained from the corresponding magnetic grid ruler; the measuring device and the measuring method utilize the corresponding magnetic grid ruler and the positioner, have high accuracy and convenient and simple operation, and are suitable for measuring the overall dimension of vehicles such as electric vehicles, bicycles, motorcycles and the like.
Description
Technical Field
The invention relates to the technical field of vehicle measurement, in particular to a vehicle outline dimension measuring device and a vehicle outline dimension measuring method.
Background
After the vehicle (electric vehicle, bicycle, motorcycle, etc.) is manufactured, the size of the vehicle needs to be measured, for example, data such as the length of the vehicle body, the width of the vehicle body, the height of the vehicle body, etc. are measured, and whether the data meet the design size and the standard requirements is detected.
The applicant has found that the prior art has at least the following technical problems: when the overall dimension of the vehicle is measured, a special vehicle overall dimension measuring device is not provided, a measurer needs to use a graduated scale and the like to pull the graduated scale to two ends of a part to be measured and read data to be measured, but the operation mode is difficult to ensure that the graduated scale is horizontally or vertically stretched, errors exist in visual measurement of the read data, the measurement precision is poor, and the measurement efficiency is low.
Some researchers adopt laser radars and the like to measure the length, width, height and the like of a vehicle, and the obtained data result is accurate, but the cost is high, and the method is not suitable for small vehicles such as electric vehicles, bicycles and the like. In the prior art, small vehicles such as electric vehicles and bicycles mostly adopt a relatively original measuring method.
Disclosure of Invention
The invention aims to provide a vehicle overall dimension measuring device and a measuring method, which aim to solve the technical problems of poor measuring precision and low measuring efficiency of the existing device or method for measuring the overall dimension of an electric vehicle in the prior art; the technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a vehicle overall dimension measuring device, which comprises a frame body and a measuring mechanism positioned on the frame body, wherein:
the measuring mechanism comprises a first magnetic grid ruler arranged along the X-axis direction, and/or a second magnetic grid ruler arranged along the Y-axis direction, and/or a third magnetic grid ruler arranged along the Z-axis direction;
and positioners are fixed on the reading heads of the first magnetic grid ruler, the second magnetic grid ruler and the third magnetic grid ruler, are rotatably connected to the reading heads and move along with the reading heads, and are used for positioning the initial position and the final position of the equipment to be tested, so that the distance between the initial position and the final position is obtained from the corresponding magnetic grid ruler.
Preferably, the first magnetic grid ruler, the second magnetic grid ruler and the third magnetic grid ruler are all provided with display units, the display units are electrically connected with control units corresponding to the magnetic grid rulers, and the control units can convert magnetic field signals into analog quantity signals or digital quantity signals and output the analog quantity signals or the digital quantity signals from the display units.
Preferably, the support body includes first horizontal segment, second horizontal segment and vertical section, wherein:
the first horizontal section and the second horizontal section are fixedly connected and located in the same horizontal plane, the first horizontal section extends along the X-axis direction and is used for fixing the first magnetic grid ruler, and the second horizontal section extends along the Y-axis direction and is used for fixing the second magnetic grid ruler;
the vertical section is fixed on the first horizontal section or the second horizontal section, and the vertical section extends along the Z-axis direction and fixes the third magnetic grid ruler.
Preferably, the frame body comprises a fence, the fence is arranged on one side or two sides of the device to be tested in an enclosing mode, and the first horizontal section and the second horizontal section are located on the fence.
Preferably, the positioner is a laser generator.
Preferably, the frame body is further provided with an operating platform for bearing the equipment to be tested, the operating platform is provided with a fixing device, and the fixing device is used for clamping the equipment to be tested so that the equipment to be tested is in a vertical state.
Preferably, the fixing device comprises two telescopic cylinders, wherein the telescopic ends of the two telescopic cylinders are arranged oppositely, and when the telescopic ends move relatively, the equipment to be tested can be clamped and fixed.
Preferably, the first magnetic grid ruler, the second magnetic grid ruler, the third magnetic grid ruler and the magnetic reading head are all connected with a rotating frame, the positioner is fixed on the rotating frame, and the rotating frame can drive the positioner to rotate in a horizontal plane and/or a vertical plane.
Preferably, the rotating frame comprises a base, a first rotating shaft and a second rotating shaft, wherein:
the base is fixedly connected with the read head, a vertically arranged fixed shaft is arranged on the base, the first rotating shaft is arranged along the horizontal direction, and the first rotating shaft is rotatably connected to the fixed shaft and can horizontally rotate under the action of external force;
the second rotating shaft is arranged along the vertical direction, and the lower end of the second rotating shaft is rotatably connected to the first rotating shaft and can vertically rotate under the action of external force; the positioner is fixed on the second rotating shaft.
The embodiment also provides a measuring method based on the vehicle outline dimension measuring device, which comprises the following steps:
fixing the positioner on the magnetic reading heads of the first magnetic grid ruler, the second magnetic grid ruler and the third magnetic grid ruler;
moving the read head and enabling the positioner to position the initial position and the end position of the device to be tested;
and acquiring the distance between the initial position and the final position from the corresponding magnetic grid ruler.
Compared with the prior art, the vehicle overall dimension measuring device and the vehicle overall dimension measuring method provided by the invention have the following beneficial effects: the first magnetic grid ruler, the second magnetic grid ruler and the third magnetic grid ruler are arranged in the X-axis direction, the Y-axis direction and the Z-axis direction, the positioner is arranged on the magnetic reading head of the magnetic grid ruler, the positioner can be synchronously moved when the magnetic reading head is moved, the positioner is used for positioning the initial position and the end position of the equipment to be measured, the distance between the initial position and the end position can be directly obtained from the magnetic grid ruler, and therefore the wheel tread of the electric vehicle and the contour dimension in the three directions of length, width, height and the like are measured, whether the dimension meets the standard or not is detected, the accuracy is high, the operation is convenient and simple, and the device is suitable for measuring the contour dimension of the electric vehicle, the bicycle, the motorcycle and other vehicles.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of a vehicle dimension measuring device;
FIG. 2 is a front view of the vehicle dimension measuring device;
fig. 3 is a schematic structural view of the turret.
In the figure 1, a frame body; 10. a fence; 11. a first horizontal segment; 12. a second horizontal segment; 13. a vertical section; 14. an operating platform; 21. a first magnetic scale; 211. a magnetic scale; 212. a read head; 22. a second magnetic scale; 23. a third magnetic scale; 3. a laser generator; 4. a telescopic cylinder; 41. a telescopic end; 5. a rotating frame; 51. a base; 52. a fixed shaft; 53. a first rotating shaft; 54. a second rotating shaft; 55. fixing a sleeve; 56. and locking the bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the invention provides a vehicle overall dimension measuring device and a measuring method which have high accuracy and convenient and simple operation and are suitable for measuring the overall dimensions of vehicles such as electric vehicles, bicycles, motorcycles and the like.
The technical solution provided by the present invention is explained in more detail below with reference to fig. 1 to 3.
Example 1
As shown in fig. 1 to 3, the present embodiment provides a vehicle overall dimension measuring device, which includes a frame body 1 and a measuring mechanism located on the frame body 1, wherein: the measuring mechanism comprises a first magnetic grid ruler 21 arranged along the X-axis direction, and/or a second magnetic grid ruler 22 arranged along the Y-axis direction, and/or a third magnetic grid ruler 23 arranged along the Z-axis direction; one or two or three of the first magnetic grid ruler 21, the second magnetic grid ruler 22 and the third magnetic grid ruler 23 may be provided, preferably, the measuring mechanism includes the first magnetic grid ruler 21, the second magnetic grid ruler 22 and the third magnetic grid ruler 23, and the read heads 212 of the three magnetic grid ruler are all provided with a positioner, the positioner is rotatably connected to the read heads 212 and moves along with the read heads 212, and is used for positioning the initial position and the end position of the device to be measured, so that the corresponding magnetic grid ruler obtains the distance between the initial position and the end position.
The magnetic scale can adopt an absolute value magnetic scale, which is mature in the prior art and can be purchased directly, and is not described herein again.
The vehicle overall dimension measuring device of the embodiment is provided with the first magnetic grid ruler 21, the second magnetic grid ruler 22 and the third magnetic grid ruler 23 in the X-axis direction, the Y-axis direction and the Z-axis direction, and the positioner is arranged on the magnetic reading head 212 of the magnetic grid ruler, so that the positioner can be synchronously moved when the magnetic reading head 212 is moved, the positioner is used for positioning the initial position and the end position of the equipment to be measured, the distance between the initial position and the end position can be directly obtained from the magnetic grid ruler, and the wheel distance of the electric vehicle and the overall dimension in the three directions of length, width and height can be measured, whether the dimensions meet the standard or not is detected, the accuracy is high, the operation is convenient and simple, and the vehicle overall dimension measuring device is suitable for measuring the overall dimensions of the electric vehicle, the bicycle, the motorcycle and the like.
The principle of the measuring mechanism is as follows: and respectively and accurately measuring two-dimensional size data in the X-axis direction, the Y-axis direction and the Z-axis direction by using a magnetic grid ruler. The magnetic grid ruler is provided with a read head 212 and a magnetic ruler 211 which are installed in a non-contact mode for reading, the NS-SN-NS poles on the magnetic ruler 211 generate magnetic fields with different directions, and the read head 212 senses the change of the magnetic fields in the process of moving along the magnetic ruler 211 and converts the change of the magnetic fields into analog quantity signals or digital quantity signals for outputting.
As an optional implementation manner, the first magnetic grid ruler 21, the second magnetic grid ruler 22, and the third magnetic grid ruler 23 are all provided with a display unit, and the display unit is electrically connected with the control unit corresponding to the magnetic grid ruler, and the control unit can convert the magnetic field signal into an analog quantity signal or a digital quantity signal and output the analog quantity signal or the digital quantity signal from the display unit.
The display unit can adopt the existing three-channel display, SPM magnetic grid digital display meter and the like to directly display the distance between the initial position and the final position of the read head 212 and the positioner, so that a measurer can directly read the distance, the use is convenient, and the measurement efficiency is improved.
As an alternative embodiment, referring to fig. 1 and 2, the frame body 1 of the present embodiment includes a first horizontal section 11, a second horizontal section 12 and a vertical section 13, wherein: the first horizontal section 11 and the second horizontal section 12 are fixedly connected and located in the same horizontal plane, the first horizontal section 11 extends along the X-axis direction and is fixed with a first magnetic grid ruler 21, and the second horizontal section 12 extends along the Y-axis direction and is fixed with a second magnetic grid ruler 22; the vertical section 13 is fixed on the first horizontal section 11 or the second horizontal section 12, and the vertical section 13 extends along the Z-axis direction and fixes the third magnetic scale 23.
The first horizontal segment 11 and the second horizontal segment 12 are vertically arranged, so that the first magnetic grid ruler 21 and the second magnetic grid ruler 22 are limited to extend in the X-axis direction and the Y-axis direction, and the two-dimensional size of the device with the device to be measured in the X-axis direction can be measured when the read head 212 of the first magnetic grid ruler 21 moves on the corresponding magnetic ruler 211, and the two-dimensional size of the device with the device to be measured in the Y-axis direction can be measured when the read head 212 of the second magnetic grid ruler 22 moves on the corresponding magnetic ruler 211; similarly, the vertical section 13 is perpendicular to the first horizontal section 11 or the second horizontal section 12, so as to ensure that the read head 212 of the third magnetic grid ruler 23 can measure the two-dimensional size of the device to be measured in the Z-axis direction when moving on the corresponding magnetic ruler 211.
In order to ensure the safety during measurement, as an alternative embodiment, referring to fig. 1 and 2, the rack 1 includes a fence 10, the fence 10 is enclosed on one side or two sides of the device to be measured, and the first horizontal section 11 and the second horizontal section 12 are located on the fence 10.
Referring to fig. 1 and 2, the fences 10 of the rack 1 are located on both sides of the device under test and are formed with a certain height in the vertical direction, so as to ensure the safety when measuring the size of the device under test, such as the size of a vehicle.
As an alternative embodiment, the positioner of the present embodiment is a laser generator 3. The initial position of the cross or the straight line visible light spot generated by the laser generator 3 is used for positioning, the read head 212 on the corresponding magnetic grating ruler is moved, the stress light generator 3 is moved at the same time, and when the final position of the cross or the straight line visible light spot generated by the laser generator 3 is positioned, the displacement indication number on the display unit of the corresponding magnetic grating ruler is read. The laser generator 3 is used as a positioner, and the linearly propagated light spots are utilized, so that different positions of the equipment to be measured can be conveniently positioned, and the measuring accuracy is ensured.
As an optional implementation manner, referring to fig. 1 and fig. 2, an operation platform 14 for carrying a device to be tested is further disposed on the frame body 1 of this embodiment, and a fixing device is disposed on the operation platform 14 and is used for clamping the device to be tested so as to enable the device to be tested to be in a vertical state.
The operating platform 14 is convenient for arranging a fixing device, and provides a stable platform for the size measurement of the equipment to be measured; the fixing device clamps and fixes the equipment to be measured and enables the equipment to be measured to be always in a vertical state, so that the situation that the equipment to be measured shakes and the like in the measuring process is changed, measuring errors are caused, and measuring precision is influenced.
As an alternative embodiment, referring to fig. 1 and fig. 2, the fixing device of the present embodiment includes two telescopic cylinders 4, wherein the telescopic ends 41 of the two telescopic cylinders 4 are disposed opposite to each other, and when the telescopic ends 41 move relatively, the fixing device can clamp and fix the device to be tested. In order to increase the contact area between the telescopic cylinder 4 and the device to be tested, the telescopic cylinder 4 can adopt a three-axis cylinder, and the telescopic end 41 of the telescopic cylinder 4 extends along the X-axis direction or the Y-axis direction and is arranged in parallel to each other, so as to ensure that the device to be tested can keep a vertical state after clamping the device to be tested, and prevent the device to be tested from shifting.
Some devices under test, such as vehicles, have a problem that it is difficult to locate some points on the vehicle if the laser generator 3 is fixedly disposed on the magnetic reading head 212, for example, the vertical positions of the first horizontal segment 11 and the second horizontal segment 12 on the frame body are fixed, and if the laser generator 3 is fixedly disposed on the magnetic reading head 212, the points to be calibrated on the devices under test and the first horizontal segment and the second horizontal segment are located in different planes, then the light spot of the laser generator is difficult to move to the points to be calibrated.
Based on this, in this embodiment, the positioner of this embodiment is rotatably disposed on the corresponding read head to move the light spot to the to-be-calibrated point of the device under test. Specifically, the first magnetic grid ruler 21, the second magnetic grid ruler 22, the third magnetic grid ruler 23 and the read head 212 are all connected with a rotating frame 5, the positioner is fixed on the rotating frame 5, and the rotating frame 5 can drive the positioner to rotate in a horizontal plane and/or a vertical plane.
The rotating frame 5 is rotatably arranged in the horizontal plane and the vertical plane, the laser generator 3 can be driven to rotate through the rotating frame 5 so as to adjust the position of laser, the light spot can be conveniently moved to the to-be-measured device to be calibrated, the positioning is convenient, and the measuring accuracy and operability are further ensured.
In the present embodiment, an implementation manner of the rotating frame 5 is provided, and referring to fig. 3, the rotating frame 5 includes a base 51, a first rotating shaft 53 and a second rotating shaft 54, wherein: the base 51 is fixedly connected with the read head 212, a fixed shaft 52 which is vertically arranged is arranged on the base 51, the first rotating shaft 53 is arranged along the horizontal direction, one end of the first rotating shaft 53 is provided with a shaft hole for the fixed shaft 52 to pass through, and the first rotating shaft 53 is rotatably connected to the fixed shaft 52 and can horizontally rotate under the action of external force; the second rotating shaft 54 is arranged along the vertical direction, and the lower end thereof is rotatably connected to the first rotating shaft 53 and can vertically rotate under the action of external force; the positioner is fixed to the second shaft 54. Referring to fig. 3, a fixing sleeve 55 for clamping and fixing the laser generator is disposed at the upper end of the second shaft 54.
Specifically, a locking bolt 56 may be disposed on the first rotating shaft 53, the locking bolt 56 is in threaded connection with the first rotating shaft 53, when one end of the locking bolt 56 abuts against the fixed shaft 52, the fixed shaft 52 and the first rotating shaft 53 can be fixed, when the locking bolt 56 is loosened, the first rotating shaft 53 can rotate relative to the fixed shaft 52, and due to the limitation of the fixed shaft 52, the first rotating shaft 53 rotates in a horizontal plane under the action of an external force. And the first rotating shaft 53 rotates to drive the second rotating shaft 54 and the laser generator 3 to rotate simultaneously. Similarly, another locking bolt 56 may be disposed on the first rotating shaft 53, and when one end of the locking bolt 56 abuts against the second rotating shaft 54, the first rotating shaft 53 and the second rotating shaft 54 can be fixed, and the second rotating shaft 54 can be rotated in the vertical direction by the above-mentioned manner.
The structure of the rotating frame 5 can realize rotation of the laser generator 3 in a horizontal plane and a vertical plane, and is convenient for positioning the set position of the equipment to be tested.
The following description will be made by taking the measurement of the external dimensions of the electric vehicle as an example, in the case of using the vehicle external dimension measurement device of the present embodiment: the bicycle to be measured is clamped and fixed between the telescopic ends 41 of the two telescopic cylinders 4 and is kept in a vertical state; according to the GB17761 standard, for example, the central distance between the front wheel and the rear wheel of the electric bicycle is less than or equal to 1250mm, when the data of the electric bicycle to be measured are measured:
since the distance is in the horizontal plane, it can be measured using the second magnetic scale 22. Firstly, by rotating the rotating frame 5 on the second magnetic grid ruler 22, the light spot of the laser generator 3 is irradiated to the central position of the front wheel, and the initial position is positioned; moving a read head 212 of the second magnetic grid ruler 22, wherein the read head 212 drives the laser generator 3 to move, so that the laser generator 3 moves to a position where the light spot falls on the center of the rear wheel, and the end position is positioned; at the moment, reading readings, namely the center distance between the front wheel and the rear wheel of the electric bicycle to be measured, from the corresponding magnetic grid ruler.
Similarly, when measuring other dimensions, appropriate corresponding magnetic scales may be selected for measurement in the manner described above.
Example 2
The embodiment provides a measuring method based on the vehicle outline dimension measuring device, which comprises the following steps: fixing the positioner on the read heads 212 of the first magnetic grid ruler 21, the second magnetic grid ruler 22 and the third magnetic grid ruler 23; moving the read head 212 and causing the positioner to position the initial and final positions of the device under test; the distance between the initial position and the end position is obtained from the corresponding magnetic scale.
According to the measuring method, the initial position and the end position of the device to be measured are positioned by the positioner, and the distance between the initial position and the end position can be directly obtained from the magnetic grid ruler, so that the wheel track of the electric vehicle and the contour dimension in the three directions of length, width, height and the like are measured, whether the dimension meets the standard or not is detected, the accuracy is high, the operation is convenient and simple, and the measuring method is suitable for measuring the contour dimension of the electric vehicle, the bicycle, the motorcycle and other vehicles.
The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a vehicle overall dimension measuring device which characterized in that, includes the support body and is located measurement mechanism on the support body, wherein:
the measuring mechanism comprises a first magnetic grid ruler arranged along the X-axis direction, and/or a second magnetic grid ruler arranged along the Y-axis direction, and/or a third magnetic grid ruler arranged along the Z-axis direction;
and the positioners are rotatably connected to the magnetic reading heads and move along with the magnetic reading heads, and are used for positioning the initial position and the end position of the equipment to be tested, so that the distance between the initial position and the end position is obtained on the corresponding magnetic grid ruler.
2. The vehicle dimension measuring device according to claim 1, wherein a display unit is arranged on each of the first magnetic grid ruler, the second magnetic grid ruler and the third magnetic grid ruler, the display unit is electrically connected with a control unit corresponding to the magnetic grid ruler, and the control unit can convert a magnetic field signal into an analog quantity signal or a digital quantity signal and output the analog quantity signal or the digital quantity signal from the display unit.
3. The vehicle dimension measuring device according to claim 1, wherein the frame body includes a first horizontal section, a second horizontal section, and a vertical section, wherein:
the first horizontal section and the second horizontal section are fixedly connected and located in the same horizontal plane, the first horizontal section extends along the X-axis direction and is used for fixing the first magnetic grid ruler, and the second horizontal section extends along the Y-axis direction and is used for fixing the second magnetic grid ruler;
the vertical section is fixed on the first horizontal section or the second horizontal section, and the vertical section extends along the Z-axis direction and fixes the third magnetic grid ruler.
4. The vehicle dimension measuring device of claim 3, wherein the frame body comprises a fence, the fence is arranged on one side or two sides of the device to be measured, and the first horizontal section and the second horizontal section are arranged on the fence.
5. The vehicle dimension measuring device according to any one of claims 1 to 4, wherein the positioner is a laser generator.
6. The vehicle overall dimension measuring device according to claim 1, wherein an operating platform for carrying a device to be measured is further arranged on the frame body, and a fixing device is arranged on the operating platform and used for clamping the device to be measured so as to enable the device to be measured to be in a vertical state.
7. The vehicle dimension measuring device of claim 6, wherein the fixing device comprises two telescopic cylinders, wherein telescopic ends of the two telescopic cylinders are arranged opposite to each other, and the device to be measured can be clamped and fixed when the two telescopic ends move relative to each other.
8. The vehicle dimension measuring device according to claim 1, wherein the first magnetic grid ruler, the second magnetic grid ruler, the third magnetic grid ruler and the magnetic reading head are connected with a rotating frame, the positioner is fixed on the rotating frame, and the rotating frame can drive the positioner to rotate in a horizontal plane and/or a vertical plane.
9. The vehicle dimension measuring device according to claim 8, wherein the turret includes a base, a first rotating shaft, and a second rotating shaft, wherein:
the base is fixedly connected with the read head, a vertically arranged fixed shaft is arranged on the base, the first rotating shaft is arranged along the horizontal direction, and the first rotating shaft is rotatably connected to the fixed shaft and can horizontally rotate under the action of external force;
the second rotating shaft is arranged along the vertical direction, and the lower end of the second rotating shaft is rotatably connected to the first rotating shaft and can vertically rotate under the action of external force; the positioner is fixed on the second rotating shaft.
10. A measuring method based on the vehicle dimension measuring apparatus according to any one of claims 1 to 9, characterized by comprising:
fixing the positioner on the magnetic reading heads of the first magnetic grid ruler, the second magnetic grid ruler and the third magnetic grid ruler;
moving the read head and enabling the positioner to position the initial position and the end position of the device to be tested;
and acquiring the distance between the initial position and the final position from the corresponding magnetic grid ruler.
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| CN202110591395.7A CN113295083A (en) | 2021-05-28 | 2021-05-28 | Vehicle overall dimension measuring device and measuring method |
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| CN202110591395.7A CN113295083A (en) | 2021-05-28 | 2021-05-28 | Vehicle overall dimension measuring device and measuring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114264231A (en) * | 2021-12-23 | 2022-04-01 | 湖南凌翔磁浮科技有限责任公司 | Dimension detection tool for high-speed magnetic levitation suspension electromagnet box girder |
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| CN114264231A (en) * | 2021-12-23 | 2022-04-01 | 湖南凌翔磁浮科技有限责任公司 | Dimension detection tool for high-speed magnetic levitation suspension electromagnet box girder |
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