CN106382887A - System for measuring position relation between longitudinal axis of automotive compartment and back axle center - Google Patents
System for measuring position relation between longitudinal axis of automotive compartment and back axle center Download PDFInfo
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- CN106382887A CN106382887A CN201610977474.0A CN201610977474A CN106382887A CN 106382887 A CN106382887 A CN 106382887A CN 201610977474 A CN201610977474 A CN 201610977474A CN 106382887 A CN106382887 A CN 106382887A
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- transmitter module
- surveyors
- optical transmitter
- staff
- truck body
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a system for measuring a position relation between a longitudinal axis of an automotive compartment and a back axle center. The system comprises two sets of measuring equipment which are symmetrically arranged at two sides of an automobile in a manner that the back axle center of the automobile is used as an origin. Each set of measuring equipment comprises a hub clamp and a light transmitter module. The hub clamp is clamped on a wheel hub. The light transmitter module is connected with the hub clamp. The light transmitter module is arranged in the extension line of the axis of the automotive back axle. The system further comprises two measuring scales which are arranged right above the two light transmitter modules and are perpendicularly connected with the side surface of the automotive compartment. The axes of the two measuring scales are in a straight line. A light beam which is transmitted from the light transmitter module is vertically and upwards transmitted to the measuring scale with tick marks. The system has a simple structure and furthermore accurately determines the position relation between the longitudinal axis of the automotive compartment and the back axle center of the automobile. The system has advantages of improving operation efficiency and measurement accuracy, preventing measurement errors, and facilitating accurate adjustment for the position relation between the automotive compartment and the automotive back axle.
Description
Technical field
The present invention relates to a kind of for measuring the measuring system whether at automobile axle center for the truck body longitudinal axis, especially
It is related to a kind of measurement truck body longitudinal axis and the system of back axle center relation, belongs to automobile technical field.
Background technology
Thrust line is an imaginary line, extends forward from automobile hind axle center, is jointly determined by the trailing wheel of automobile both sides
Rear axle travel direction line, thrust angle is the angle of longitudinal axis in top plan view for the automobile and thrust line, and thrust line is relatively
Deflection is that just deflection is negative to the right to the longitudinal axis of automobile to the left, if trailing wheel is directed straight ahead, thrust line and automobile
Longitudinal axis are consistent, then thrust angle is zero, now, automobile straight-line travelling, rear wheel drive truck is vertical along thrust line and automobile
Advance to axis, therefore zero thrust angle is preferable;If trailing wheel is not directed to dead ahead, the longitudinal axis of thrust line and automobile are not
Unanimously, then thrust angle occurs and be not equal to zero, now, rear wheel drive truck advances along thrust line, linear with the longitudinal axiss of automobile
Angled, traveling can cause tire accelerated wear test or sideslip to automobile in this state, so that automobile fuel consumption is significantly increased, very
Occur blowing out to during the traveling that automobile is fully loaded with, cause danger, cause economic loss;Meanwhile, if truck body vertical
To axis perpendicular to automobile axle, but the longitudinal axis of truck body not in automobile axle in the heart, i.e. truck body
The square crossing point of the axis of axis and automobile axle not in automobile axle in the heart, after truck body load-carrying, then
The wheel unbalance stress at automobile axle two ends can be led to, tire accelerated wear test or sideslip equally can be caused so that automobile fuel consumption is significantly increased
Plus, or even occur blowing out during the traveling that automobile is fully loaded with, cause danger, cause economic loss.
Auto producer domestic at present and car servicing centre are measuring truck body longitudinal axis or not after automobile
When in bridge in the heart, generally carry out measuring calculating using artificial operation rule, the not measuring apparatus of standard, due to every
The measuring method of individual survey crew is different, and the rule precision using is different, the measurement that therefore each survey crew draws
Result is different from, and the accuracy ultimately resulting in measurement result is not high, and measures inefficiency, or even occurs that measurement is lost
By mistake, lead to later stage adjustment truck body to differ bigger with the position relationship of automobile axle, lose more than gain.
Content of the invention
For solving the deficiencies in the prior art, the present invention provides a kind of measurement truck body longitudinal axis and back axle center
The system of relation, structure is simple, easy to operate, accurately determines that truck body longitudinal axis and the position at automobile axle center are closed
System, improves work efficiency and measuring accuracy, it is to avoid measurement error, facilitates the later stage that the position of truck body and automobile axle is closed
System is accurately adjusted.
The technical solution adopted in the present invention is:
A kind of measurement truck body longitudinal axis and the system of back axle center relation, including two groups with automobile axle center be
Origin symmetry is arranged on the measuring apparatus of automobile both sides, and described measuring apparatus include Hub fixture and optical transmitter module, described
Hub fixture is clamped on hub for vehicle wheel, and described optical transmitter module is connected with Hub fixture, and described optical transmitter module sets
Put on the extended line of automobile axle axis, also include two surfaces being separately positioned on two optical transmitter module simultaneously
And with the side of truck body surveyors' staff connected vertically, the axis of described two surveyors' staffs on the same line, institute
The beam orthogonal stating optical transmitter module transmitting is irradiated on the surveyors' staff with scale numerical value upwards.
Further, described optical transmitter module is connected with Hub fixture by universal ball end connecting rod, and described light is sent out
Emitter module is rotated with the bulb end of universal ball end connecting rod and is connected, and realizing optical transmitter module can be universal with relativeatoeterahub fixture
Rotate, in order to adjust the level of optical transmitter module, so that the light beam that optical transmitter module is launched is irradiated vertically upward all the time, it is to avoid
The direction of illumination that optical transmitter module launches light beam is subject to hub for vehicle wheel outward or interior is affected.
Further, described optical transmitter module is provided with air-bubble level, in order to monitor the water of optical transmitter module
Level state, is conveniently adjusted the level of optical transmitter module.
Further, wherein one end of described surveyors' staff arranges the connecting portion that is magnetic, and described surveyors' staff passes through magnetic
Connecting portion is vertical with the side of truck body to be connected, and magnetic connecting portion has magnetic adsorptive power, and surveyors' staff is connected by magnetic
Portion is vertical with the side of truck body to adsorb and is connected, and connective stability is good, installs conveniently moving.
Further, read for convenience and computation and measurement scale on Measurement scales numerical value, the quarter of described surveyors' staff
Number of degrees value initial point is positioned close to one end of magnetic connecting portion, and described scale numerical value is from the initial point of surveyors' staff to away from magnetic
One end of property connecting portion is from little to being gradually incremented by greatly.
Further, the certainty of measurement of described surveyors' staff is 1mm.
Further, the light beam of described optical transmitter module transmitting is spot beam so as to be irradiated to shape on surveyors' staff
Become a clearly round dot shaped laser spot, the light beam that the personnel that are convenient for measuring read optical transmitter module transmitting is radiated on surveyors' staff
Scale numerical value.
Further, in order to improve the accuracy of measurement result, described optical transmitter module and surveyors' staff vertical away from
From being 800-1000mm.
The beneficial effects of the present invention is:By two groups, automobile both sides are arranged on for origin symmetry with automobile axle center
Measuring apparatus measure, and the Hub fixture in measuring apparatus is clamped on hub for vehicle wheel, and optical transmitter module passes through multi-directional ball
Head connecting rod is connected with Hub fixture, and optical transmitter module is arranged on the extended line of automobile axle axis, two groups of measurements
The distance apart from automobile axle center for the optical transmitter module in equipment is equal, and meanwhile, optical transmitter module passes through universal ball end
Connecting rod can make optical transmitter module launch with relativeatoeterahub fixture universal rotational, in order to adjust the level of optical transmitter module
Light beam irradiate vertically upward all the time, it is to avoid the direction of illumination that optical transmitter module launches light beam is subject to hub for vehicle wheel outer or interior
Impact;Surveyors' staff is arranged on the surface of optical transmitter module and is hung down by the side of magnetic connecting portion and truck body
Direct-connected connect, optical transmitter module transmitting beam orthogonal be irradiated to upwards on the surveyors' staff with scale numerical value, according to automobile
The scale numerical value that is radiated on surveyors' staff of light beam of the optical transmitter module transmitting of both sides is determining truck body longitudinal axis
With the position relationship at automobile axle center, if automobile both sides optical transmitter module transmitting light beam be irradiated on surveyors' staff
Scale numerical value identical, then truck body longitudinal axis in automobile axle in the heart, if the optical transmitting set mould of automobile both sides
The scale numerical value that the light beam of block transmitting is radiated on surveyors' staff is different, then truck body longitudinal axis are not in automobile axle
In the heart, overall structure is simple, easy to operate, accurately determines the position relationship of truck body longitudinal axis and automobile axle center,
Improve work efficiency and measuring accuracy, it is to avoid measurement error, facilitate the position relationship to truck body and automobile axle for the later stage
Accurately adjusted.
Brief description:
Fig. 1 be truck body longitudinal axis of the present invention in automobile axle in the heart when instrumentation plan;
Fig. 2 is the instrumentation plan that truck body longitudinal axis of the present invention are partial to during automobile axle central right;
Fig. 3 is the instrumentation plan that truck body longitudinal axis of the present invention are partial to during automobile axle center left;
The schematic perspective view that Fig. 4 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
The generalized section that Fig. 5 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
In figure Main Reference Numerals implication is as follows:
1- truck body, 2- wheel, 3- Hub fixture, 4- optical transmitter module, 5- surveyors' staff, 6- universal ball end connecting rod,
7- air-bubble level, 8- magnetic connecting portion, 9- automobile axle.
Specific embodiment:
Below in conjunction with the accompanying drawings the present invention is done with specific introduction.
Embodiment one
Fig. 1 be truck body longitudinal axis of the present invention in automobile axle in the heart when instrumentation plan;
As shown in Figure 1:The present embodiment is the system of a kind of measurement truck body longitudinal axis and back axle center relation, including
Two groups of measuring apparatus being arranged on automobile both sides with automobile axle 9 center for origin symmetry, every group of measuring apparatus include wheel hub folder
Tool 3 and optical transmitter module 4, wherein Hub fixture 3 is clamped on the wheel hub of wheel 2, optical transmitter module 4 and Hub fixture 3
Connect, and optical transmitter module 4 is arranged on the extended line of automobile axle 9 axis, the present embodiment also includes two and sets respectively
Put in the surface of two optical transmitter module 4 and surveyors' staff 5 connected vertically, two measurements with the side of truck body 1
On the same line, the beam orthogonal of optical transmitter module 4 transmitting is irradiated to upwards with scale numerical value for the axis of scale 5
On surveyors' staff 5, in order to improve the accuracy of measurement result, in the present embodiment, optical transmitter module 4 and surveyors' staff 5 is vertical
Distance is 800mm.
The schematic perspective view that Fig. 4 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
The generalized section that Fig. 5 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
As shown in Figures 4 and 5:Optical transmitter module 4 in the present embodiment is connected with Hub fixture 3 by universal ball end connecting rod 6,
And optical transmitter module 4 is rotated with the bulb end of universal ball end connecting rod 6 and is connected, realize optical transmitter module 4 and can relatively take turns
Hub fixture 3 universal rotational, in order to adjust the level of optical transmitter module 4, makes the light beam that optical transmitter module 4 is launched vertical all the time
Irradiate upwards, it is to avoid the direction of illumination that optical transmitter module 4 launches light beam is subject to wheel 2 wheel hub outward or interior is affected;With
When, the present embodiment is provided with air-bubble level 7 in optical transmitter module 4, in order to monitor the horizontal of optical transmitter module 4
State, is conveniently adjusted the level of optical transmitter module 4, and, the light beam of optical transmitter module 4 transmitting in the present embodiment is point-like
Light beam forms a clearly round dot shaped laser spot so as to be irradiated on surveyors' staff 5, and the personnel that are convenient for measuring read optical transmitting set mould
The light beam of block 4 transmitting is radiated at the scale numerical value on surveyors' staff 5.
The present embodiment arranges, in wherein one end of surveyors' staff 5, the connecting portion 8 that is magnetic, and surveyors' staff 5 is connected by magnetic
Portion 8 is vertical with the side of truck body 1 to be connected, and magnetic connecting portion 8 has magnetic adsorptive power, and surveyors' staff 5 is connected by magnetic
Portion 8 is vertical with the side of truck body 1 to adsorb and is connected, and connective stability is good, installs conveniently moving;And read for convenience and count
Calculate the Measurement scales numerical value on surveyors' staff 5, the scale numerical value initial point of surveyors' staff 5 is positioned close to magnetic even by the present embodiment
One end of socket part 8, scale numerical value from the initial point of surveyors' staff 5 to the one end away from magnetic connecting portion 8 from little to gradually passing greatly
Increase, be down scale numerical value near initial point, away from initial point is high range numerical value, the survey of the surveyors' staff 5 in the present embodiment
Accuracy of measurement is 1mm.
As shown in Figure 1:In the present embodiment, the light beam of optical transmitter module 4 transmitting of automobile both sides is irradiated to surveyors' staff 5
On scale numerical value identical, because two groups of measuring apparatus are to be symmetrical arranged, and optical transmitter module 4 is arranged in automobile axle 9
On the extended line of axis, so the distance apart from automobile axle 9 center for the optical transmitter module 4 in two groups of measuring apparatus is equal,
Meanwhile, two surveyors' staffs 5 are separately positioned on the surface of two optical transmitter module 4 vertical with the side of truck body 1
Connect, on the same line, that is, the axis of two surveyors' staffs 5 is perpendicular to truck body 1 for the axis of two surveyors' staffs 5
Longitudinal axis, optical transmitter module 4 transmitting beam orthogonal be irradiated to upwards on the surveyors' staff 5 with scale numerical value, because
This, the scale numerical point that the surveyors' staff 5 of automobile both sides is irradiated by optical transmitter module 4 is apart from truck body 1 longitudinal axis
Distance equal, so the present embodiment truck body 1 longitudinal axis in automobile axle 9 in the heart.
Embodiment two
Fig. 2 is the instrumentation plan that truck body longitudinal axis of the present invention are partial to during automobile axle central right;
As shown in Figure 2:The present embodiment is the system of a kind of measurement truck body longitudinal axis and back axle center relation, including
Two groups of measuring apparatus being arranged on automobile both sides with automobile axle 9 center for origin symmetry, every group of measuring apparatus include wheel hub folder
Tool 3 and optical transmitter module 4, wherein Hub fixture 3 is clamped on the wheel hub of wheel 2, optical transmitter module 4 and Hub fixture 3
Connect, and optical transmitter module 4 is arranged on the extended line of automobile axle 9 axis, the present embodiment also includes two and sets respectively
Put in the surface of two optical transmitter module 4 and surveyors' staff 5 connected vertically, two measurements with the side of truck body 1
On the same line, the beam orthogonal of optical transmitter module 4 transmitting is irradiated to upwards with scale numerical value for the axis of scale 5
On surveyors' staff 5, in order to improve the accuracy of measurement result, in the present embodiment, optical transmitter module 4 and surveyors' staff 5 is vertical
Distance is 900mm.
The schematic perspective view that Fig. 4 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
The generalized section that Fig. 5 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
As shown in Figures 4 and 5:Optical transmitter module 4 in the present embodiment is connected with Hub fixture 3 by universal ball end connecting rod 6,
And optical transmitter module 4 is rotated with the bulb end of universal ball end connecting rod 6 and is connected, realize optical transmitter module 4 and can relatively take turns
Hub fixture 3 universal rotational, in order to adjust the level of optical transmitter module 4, makes the light beam that optical transmitter module 4 is launched vertical all the time
Irradiate upwards, it is to avoid the direction of illumination that optical transmitter module 4 launches light beam is subject to wheel 2 wheel hub outward or interior is affected;With
When, the present embodiment is provided with air-bubble level 7 in optical transmitter module 4, in order to monitor the horizontal of optical transmitter module 4
State, is conveniently adjusted the level of optical transmitter module 4, and, the light beam of optical transmitter module 4 transmitting in the present embodiment is point-like
Light beam forms a clearly round dot shaped laser spot so as to be irradiated on surveyors' staff 5, and the personnel that are convenient for measuring read optical transmitting set mould
The light beam of block 4 transmitting is radiated at the scale numerical value on surveyors' staff 5.
The present embodiment arranges, in wherein one end of surveyors' staff 5, the connecting portion 8 that is magnetic, and surveyors' staff 5 is connected by magnetic
Portion 8 is vertical with the side of truck body 1 to be connected, and magnetic connecting portion 8 has magnetic adsorptive power, and surveyors' staff 5 is connected by magnetic
Portion 8 is vertical with the side of truck body 1 to adsorb and is connected, and connective stability is good, installs conveniently moving;And read for convenience and count
Calculate the Measurement scales numerical value on surveyors' staff 5, the scale numerical value initial point of surveyors' staff 5 is positioned close to magnetic even by the present embodiment
One end of socket part 8, scale numerical value from the initial point of surveyors' staff 5 to the one end away from magnetic connecting portion 8 from little to gradually passing greatly
Increase, be down scale numerical value near initial point, away from initial point is high range numerical value, the survey of the surveyors' staff 5 in the present embodiment
Accuracy of measurement is 1mm.
As shown in Figure 2:In the present embodiment, the light beam of optical transmitter module 4 transmitting of automobile both sides is irradiated to surveyors' staff 5
On scale numerical value different, left-hand scale numerical value is big, and right side scale numerical value is little;Because two groups of measuring apparatus are to be symmetrical arranged, and
Optical transmitter module 4 is arranged on the extended line of automobile axle 9 axis, so the optical transmitter module in two groups of measuring apparatus
4 distances apart from automobile axle 9 center are equal, and meanwhile, two surveyors' staffs 5 are separately positioned on two optical transmitter module 4
Directly over and vertical with the side of truck body 1 be connected, the axis of two surveyors' staffs 5 on the same line, that is, two survey
The axis of amount scale 5 is irradiated upwards perpendicular to the longitudinal axis of truck body 1, the beam orthogonal of optical transmitter module 4 transmitting
To on the surveyors' staff 5 with scale numerical value, therefore, the quarter surveyors' staff 5 of automobile both sides irradiated by optical transmitter module 4
Degree numerical point is unequal apart from the distance of truck body 1 longitudinal axis, and left side surveyors' staff 5 is irradiated by optical transmitter module 4
Scale numerical point remote apart from the distance of truck body 1 longitudinal axis, right side surveyors' staff 5 is irradiated by optical transmitter module 4
Scale numerical point near apart from the distance of truck body 1 longitudinal axis, so the present embodiment truck body 1 longitudinal axis are not in vapour
In car back axle 9 in the heart, on the right side at automobile axle 9 center.
Embodiment three
Fig. 3 is the instrumentation plan that truck body longitudinal axis of the present invention are partial to during automobile axle center left;
As shown in Figure 3:The present embodiment is the system of a kind of measurement truck body longitudinal axis and back axle center relation, including
Two groups of measuring apparatus being arranged on automobile both sides with automobile axle 9 center for origin symmetry, every group of measuring apparatus include wheel hub folder
Tool 3 and optical transmitter module 4, wherein Hub fixture 3 is clamped on the wheel hub of wheel 2, optical transmitter module 4 and Hub fixture 3
Connect, and optical transmitter module 4 is arranged on the extended line of automobile axle 9 axis, the present embodiment also includes two and sets respectively
Put in the surface of two optical transmitter module 4 and surveyors' staff 5 connected vertically, two measurements with the side of truck body 1
On the same line, the beam orthogonal of optical transmitter module 4 transmitting is irradiated to upwards with scale numerical value for the axis of scale 5
On surveyors' staff 5, in order to improve the accuracy of measurement result, in the present embodiment, optical transmitter module 4 and surveyors' staff 5 is vertical
Distance is 1000mm.
The schematic perspective view that Fig. 4 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
The generalized section that Fig. 5 is connected with universal ball end connecting rod for optical transmitter module of the present invention;
As shown in Figures 4 and 5:Optical transmitter module 4 in the present embodiment is connected with Hub fixture 3 by universal ball end connecting rod 6,
And optical transmitter module 4 is rotated with the bulb end of universal ball end connecting rod 6 and is connected, realize optical transmitter module 4 and can relatively take turns
Hub fixture 3 universal rotational, in order to adjust the level of optical transmitter module 4, makes the light beam that optical transmitter module 4 is launched vertical all the time
Irradiate upwards, it is to avoid the direction of illumination that optical transmitter module 4 launches light beam is subject to wheel 2 wheel hub outward or interior is affected;With
When, the present embodiment is provided with air-bubble level 7 in optical transmitter module 4, in order to monitor the horizontal of optical transmitter module 4
State, is conveniently adjusted the level of optical transmitter module 4, and, the light beam of optical transmitter module 4 transmitting in the present embodiment is point-like
Light beam forms a clearly round dot shaped laser spot so as to be irradiated on surveyors' staff 5, and the personnel that are convenient for measuring read optical transmitting set mould
The light beam of block 4 transmitting is radiated at the scale numerical value on surveyors' staff 5.
The present embodiment arranges, in wherein one end of surveyors' staff 5, the connecting portion 8 that is magnetic, and surveyors' staff 5 is connected by magnetic
Portion 8 is vertical with the side of truck body 1 to be connected, and magnetic connecting portion 8 has magnetic adsorptive power, and surveyors' staff 5 is connected by magnetic
Portion 8 is vertical with the side of truck body 1 to adsorb and is connected, and connective stability is good, installs conveniently moving;And read for convenience and count
Calculate the Measurement scales numerical value on surveyors' staff 5, the scale numerical value initial point of surveyors' staff 5 is positioned close to magnetic even by the present embodiment
One end of socket part 8, scale numerical value from the initial point of surveyors' staff 5 to the one end away from magnetic connecting portion 8 from little to gradually passing greatly
Increase, be down scale numerical value near initial point, away from initial point is high range numerical value, the survey of the surveyors' staff 5 in the present embodiment
Accuracy of measurement is 1mm.
As shown in Figure 3:In the present embodiment, the light beam of optical transmitter module 4 transmitting of automobile both sides is irradiated to surveyors' staff 5
On scale numerical value different, left-hand scale numerical value is little, and right side scale numerical value is big;Because two groups of measuring apparatus are to be symmetrical arranged, and
Optical transmitter module 4 is arranged on the extended line of automobile axle 9 axis, so the optical transmitter module in two groups of measuring apparatus
4 distances apart from automobile axle 9 center are equal, and meanwhile, two surveyors' staffs 5 are separately positioned on two optical transmitter module 4
Directly over and vertical with the side of truck body 1 be connected, the axis of two surveyors' staffs 5 on the same line, that is, two survey
The axis of amount scale 5 is irradiated upwards perpendicular to the longitudinal axis of truck body 1, the beam orthogonal of optical transmitter module 4 transmitting
To on the surveyors' staff 5 with scale numerical value, therefore, the quarter surveyors' staff 5 of automobile both sides irradiated by optical transmitter module 4
Degree numerical point is unequal apart from the distance of truck body 1 longitudinal axis, and left side surveyors' staff 5 is irradiated by optical transmitter module 4
Scale numerical point near apart from the distance of truck body 1 longitudinal axis, right side surveyors' staff 5 is irradiated by optical transmitter module 4
Scale numerical point remote apart from the distance of truck body 1 longitudinal axis, so the present embodiment truck body 1 longitudinal axis are not in vapour
In car back axle 9 in the heart, in the left side at automobile axle 9 center.
The present invention is surveyed by two groups of measuring apparatus being arranged on automobile both sides for origin symmetry with automobile axle center
Amount, the Hub fixture in measuring apparatus is clamped on hub for vehicle wheel, and optical transmitter module passes through universal ball end connecting rod and wheel hub
Fixture connects, and optical transmitter module is arranged on the extended line of automobile axle axis, the light transmitting in two groups of measuring apparatus
The distance apart from automobile axle center for the device module is equal, and meanwhile, optical transmitter module passes through universal ball end connecting rod can be relatively
Hub fixture universal rotational, in order to adjust the level of optical transmitter module, makes the light beam that optical transmitter module is launched vertical all the time
Irradiate upwards, it is to avoid the direction of illumination that optical transmitter module launches light beam is subject to hub for vehicle wheel outward or interior is affected;Measurement
Scale is arranged on the surface of optical transmitter module and is connected by magnetic connecting portion is vertical with the side of truck body, and light is launched
The beam orthogonal of device module transmitting is irradiated on the surveyors' staff with scale numerical value, upwards according to the optical transmitting set of automobile both sides
The scale numerical value that is radiated on surveyors' staff of light beam of module transmitting is determining truck body longitudinal axis and automobile axle center
Position relationship, if automobile both sides optical transmitter module transmitting light beam be irradiated to the scale numerical value phase on surveyors' staff
With, then truck body longitudinal axis in automobile axle in the heart, if automobile both sides optical transmitter module transmitting light beam
Be radiated at scale numerical value on surveyors' staff different, then truck body longitudinal axis not in automobile axle in the heart, overall tie
Structure is simple, easy to operate, accurately determines the position relationship of truck body longitudinal axis and automobile axle center, improves work efficiency
And measuring accuracy, it is to avoid measurement error, facilitate the later stage that the position relationship of truck body and automobile axle is accurately adjusted.
The above is only the preferred implementation of patent of the present invention it is noted that common skill for the art
For art personnel, on the premise of without departing from patent principle of the present invention, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection domain of patent of the present invention.
Claims (8)
1. a kind of system of measurement truck body longitudinal axis and back axle center relation it is characterised in that:Including two groups with
Automobile axle center is arranged on the measuring apparatus of automobile both sides for origin symmetry, and described measuring apparatus include Hub fixture and light is sent out
Emitter module, described Hub fixture is clamped on hub for vehicle wheel, and described optical transmitter module is connected with Hub fixture, and described light
Transmitter module is arranged on the extended line of automobile axle axis, also includes two simultaneously and is separately positioned on two optical transmitting sets
The surface of module and with the side of truck body surveyors' staff connected vertically, the axis of described two surveyors' staffs with
On one straight line, the beam orthogonal of described optical transmitter module transmitting is irradiated on the surveyors' staff with scale numerical value upwards.
2. the system of a kind of measurement truck body longitudinal axis according to claim 1 and back axle center relation, its
It is characterised by, described optical transmitter module is connected with Hub fixture by universal ball end connecting rod, and described optical transmitting set mould
Block is rotated with the bulb end of universal ball end connecting rod and is connected.
3. the system of a kind of measurement truck body longitudinal axis according to claim 2 and back axle center relation, its
It is characterised by, described optical transmitter module is provided with air-bubble level.
4. the system of a kind of measurement truck body longitudinal axis according to claim 1 and back axle center relation, its
It is characterised by, wherein one end of described surveyors' staff arranges the connecting portion that is magnetic, and described surveyors' staff passes through magnetic connecting portion
Vertical with the side of truck body it is connected.
5. the system of a kind of measurement truck body longitudinal axis according to claim 4 and back axle center relation, its
It is characterised by, the scale numerical value initial point of described surveyors' staff is positioned close to one end of magnetic connecting portion, described number of division
Value from the initial point of surveyors' staff to the one end away from magnetic connecting portion from little to being gradually incremented by greatly.
6. the system of a kind of measurement truck body longitudinal axis according to claim 5 and back axle center relation, its
It is characterised by, the certainty of measurement of described surveyors' staff is 1mm.
7. the system of a kind of measurement truck body longitudinal axis according to claim 1 and back axle center relation, its
It is characterised by, the light beam of described optical transmitter module transmitting is spot beam.
8. the system of a kind of measurement truck body longitudinal axis according to claim 1 and back axle center relation, its
It is characterised by, the vertical dimension of described optical transmitter module and surveyors' staff is 800-1000mm.
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CN201610977474.0A CN106382887A (en) | 2016-11-08 | 2016-11-08 | System for measuring position relation between longitudinal axis of automotive compartment and back axle center |
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CN201610977474.0A CN106382887A (en) | 2016-11-08 | 2016-11-08 | System for measuring position relation between longitudinal axis of automotive compartment and back axle center |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107856649A (en) * | 2017-10-20 | 2018-03-30 | 深圳市道通科技股份有限公司 | A kind of car body center line calibration facility and method |
CN108535729A (en) * | 2018-03-23 | 2018-09-14 | 深圳科澳汽车科技有限公司 | A kind of ACC calibration frame and its working method |
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CN107856649A (en) * | 2017-10-20 | 2018-03-30 | 深圳市道通科技股份有限公司 | A kind of car body center line calibration facility and method |
CN108535729A (en) * | 2018-03-23 | 2018-09-14 | 深圳科澳汽车科技有限公司 | A kind of ACC calibration frame and its working method |
CN108535729B (en) * | 2018-03-23 | 2024-02-20 | 深圳科澳汽车科技有限公司 | Working method of ACC calibration frame |
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