CN110940533A - Automobile lamp test bench and method - Google Patents

Automobile lamp test bench and method Download PDF

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Publication number
CN110940533A
CN110940533A CN201911299302.2A CN201911299302A CN110940533A CN 110940533 A CN110940533 A CN 110940533A CN 201911299302 A CN201911299302 A CN 201911299302A CN 110940533 A CN110940533 A CN 110940533A
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CN
China
Prior art keywords
lamp
assembly
vertical
fixing
transverse
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CN201911299302.2A
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Chinese (zh)
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CN110940533B (en
Inventor
陈雷
姜维
王文婷
袁斌
王猛
王东春
李大航
王坤
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SAIC Volkswagen Automotive Co Ltd
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SAIC Volkswagen Automotive Co Ltd
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Priority to CN201911299302.2A priority Critical patent/CN110940533B/en
Publication of CN110940533A publication Critical patent/CN110940533A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/04—Optical benches therefor

Abstract

The invention relates to the technical field of automobiles, in particular to an automobile lamp test bench and a method, wherein the automobile lamp test bench comprises a processing ground; the light curtain is fixedly arranged on the processing ground, and the inside of the light curtain is provided with a light intensity sensor probe which is used for collecting the light output quantity of each position of the automobile lamp in the opening state and outputting light intensity; the functional lamp fixing assembly is fixedly arranged on the processing ground and used for installing a functional lamp and adjusting the vertical height position and the horizontal transverse position of the functional lamp; the signal lamp fixing assembly is fixedly arranged on the processing ground and used for installing a signal lamp and adjusting the vertical height position, the horizontal longitudinal position and the horizontal transverse position of the signal lamp; grey cloth telescopic dust cover. The invention can be matched with automobile lamps with different models and sizes, can simulate the design state of the automobile lamp to the maximum extent under the condition of no sample automobile, and has the advantages of rich functions, short test period, high precision and convenient manual operation.

Description

Automobile lamp test bench and method
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile lamp test bench and an automobile lamp test method.
Background
The automobile lamp is the eyes of an automobile, plays a decisive role in the shape of the automobile, and has the functions of illuminating the road surface in front, guiding the automobile to run, warning pedestrians and vehicles behind and the like. Before the automobile lamp leaves a factory, the lighting capacity of the lamp is measured, and generally the lighting effect of a road surface, the distribution condition of light flux of 3 meters of screen light and the lighting range of the light under different visual recognition angles are included.
The traditional measuring method is that a light distribution goniometer (Goniophorometer) is adopted to fix a single car lamp on a rotating support, a light illumination collecting camera is fixed at a certain distance in front, the irradiation angle of the light is changed by rotating the car lamp, and the light illumination collecting camera is used for measuring and recording data in real time.
The method for measuring the light distribution performance of the lamp has the following defects: the measuring period is long, in order to accurately measure the luminous flux of different angles, the rotating speed of the stepping motor is slow, and the testing period of a common single lamp is more than 2 h; the light distribution performance of a single car lamp can only be measured, and the lighting test of all lamps of the whole car cannot be completed.
At present, automobile lamps and lanterns develop rapidly, except traditional car headlamp, fog lamp, tail lamp, indicator light etc., Logo (abbreviation of LOGOType), lamp, afterbody through the lamp etc. have been developed newly gradually, the light function of general grille lamp, Logo lamp and headlight combines, and the tail lamp combines with the afterbody through the lamp and has formed the welcome mode light effect that has the specialty, just so require that the grading performance of lamps and lanterns such as grille lamp, Logo lamp and headlight and tail lamp and afterbody through the lamp has good homogeneity and luminance, need to carry out test simultaneously.
However, at present, there is no instrument capable of simultaneously testing the light distribution performance of the front or rear combination lamp, in the lamp development process, the optical sample of the lamp is often required to be checked and analyzed, and in the case of no test vehicle, the light distribution performance of the front and rear lamps is usually detected by using a simple bracket, so that a lot of errors exist, and it is difficult to guide the next development of the automobile lamp.
Disclosure of Invention
The invention aims to provide a test bed and a test method for the light distribution performance of an automobile lamp, which meet the development and test requirements of the automobile lamp and solve the problems that the current functional lamps and signal lamps have larger errors in tests such as the light distribution performance and the like when no test vehicle exists and are difficult to test simultaneously.
In order to achieve the purpose, the invention provides an automobile lamp test bench, which comprises a light curtain, a processing ground, a functional lamp fixing assembly and a signal lamp fixing assembly, wherein the functional lamp fixing assembly comprises:
the processing ground is a flat plane;
the light curtain is fixedly arranged on the processing ground, and a light intensity sensor probe is arranged on the inner surface of the light curtain for collecting light output quantity of each position of the automobile lamp in a starting state and outputting light intensity;
the functional lamp fixing assembly body is fixedly arranged on the processing ground and used for installing a functional lamp and adjusting the vertical height position and the horizontal transverse position of the functional lamp;
the signal lamp fixing assembly is fixedly installed on the processing ground and used for installing signal lamps and adjusting the vertical height position, the horizontal longitudinal position and the horizontal transverse position of the signal lamps.
In an embodiment, the functional lamp fixing assembly includes a functional lamp fixing assembly and a driving motor:
the number of the functional lamp fixing assemblies is 2, the functional lamp fixing assemblies are divided into a left lamp fixing assembly and a right lamp fixing assembly, and the left lamp fixing assembly and the right lamp fixing assembly are symmetrically distributed on two sides of the driving motor;
and the driving motor provides power for adjusting the horizontal transverse position between the left lamp fixing assembly and the right lamp fixing assembly.
In an embodiment, the functional lamp fixing assembly includes a universal lamp fixing bracket assembly, a vertical adjusting mechanism assembly, and a horizontal adjusting mechanism assembly:
the lower end of the universal lamp fixing support assembly is connected with the vertical adjusting mechanism assembly, and the upper end of the universal lamp fixing support assembly is provided with a fixed functional lamp;
the upper end of the vertical adjusting mechanism assembly body is fixedly connected with the universal lamp fixing support assembly, and the lower end of the vertical adjusting mechanism assembly body is fixedly connected with the transverse adjusting mechanism assembly body, so that the vertical height position of the functional lamp is adjusted;
the lower end of the transverse adjusting mechanism assembly is fixedly connected with the processing ground, the upper end of the transverse adjusting mechanism assembly is connected with the vertical adjusting mechanism assembly, and the horizontal and transverse position of the functional lamp is adjusted.
In one embodiment, the universal lamp fixing bracket assembly comprises a vertical height adjusting support assembly, a transverse height adjusting support assembly and a lamp bracket base plate:
the upper end of the vertical height adjusting support assembly body is fixedly connected with the functional lamp, the lower end of the vertical height adjusting support assembly body is fixedly connected with the lamp bracket, and a vertical small displacement gap of the functional lamp is adjusted;
the upper end of the transverse height adjusting support assembly body is fixedly connected with the functional lamp, the lower end of the transverse height adjusting support assembly body is fixedly connected with the lamp bracket, and a small displacement gap between the vertical direction and the horizontal direction of the functional lamp is adjusted;
and the lamp bracket bottom plate is connected with the vertical adjusting mechanism assembly.
In one embodiment, the vertical height adjusting support assembly of the universal lamp fixing support assembly comprises a disc-shaped electromagnet, a height adjusting support and a vertical height adjusting screw:
the disc-shaped electromagnet is fixedly connected with the height adjusting support, and generates magnetic force in a power-on mode to fix the height adjusting support on the lamp bracket bottom plate;
the upper end of the vertical height adjusting screw rod is fixed with the shell of the functional lamp, and the lower end of the vertical height adjusting screw rod is of a bolt structure;
the upper end of the height adjusting support is provided with an internal thread, the height adjusting support is connected with the lower end of the vertical height adjusting screw rod, and the vertical small displacement gap of the functional lamp is adjusted by rotating the vertical height adjusting screw rod.
In one embodiment, the transverse height adjusting support assembly of the universal lamp fixing support assembly comprises a disc-shaped electromagnet, a height adjusting support, a transverse height adjusting screw, a transverse displacement compensation plate locking screw and a transverse displacement compensation plate:
the disc-shaped electromagnet is fixedly connected with the height adjusting support, and generates magnetic force in a power-on mode to fix the height adjusting support on the lamp bracket bottom plate;
the middle of the head part of the upper end of the transverse height adjusting screw rod is provided with a rectangular groove, and the lower end of the transverse height adjusting screw rod is of a bolt structure;
the transverse displacement compensation plate is T-shaped in appearance, the narrow end of the transverse displacement compensation plate is inserted into the rectangular groove of the transverse height adjusting screw rod, the narrow end of the transverse displacement compensation plate is provided with a hole, the wide end of the transverse displacement compensation plate is provided with a vertical long groove, and the horizontal transverse small displacement gap of the functional lamp is adjusted;
the transverse displacement compensation plate locking screw penetrates through the upper end head of the transverse height adjusting screw rod and the transverse displacement compensation plate to fix the transverse displacement compensation plate and the transverse height adjusting screw rod;
the upper end of the height adjusting support is provided with an internal thread, the height adjusting support is connected with the lower end of the transverse height adjusting screw rod, and the vertical small displacement gap of the functional lamp is adjusted by rotating the transverse height adjusting screw rod.
In one embodiment, the disc-shaped electromagnet is engraved with a longitudinal positioning reference scribing line on the outer side;
the upper surface of the lamp bracket bottom plate is carved with a longitudinal positioning reference reticle which is matched with the longitudinal positioning reference reticle of the disc-shaped electromagnet to determine the longitudinal positioning of the functional lamp.
In an embodiment, the universal lamp fixing bracket assembly further comprises a lamp rectangular groove fixing assembly fixedly connected with the bottom rectangular groove of the functional lamp, and the lamp rectangular groove fixing assembly comprises a square electromagnet, a height-adjustable ferrule and a ferrule fixing bracket:
the square electromagnet generates magnetic force in a power-on mode, and the inserting core fixing support is fixed on the lamp support bottom plate;
the insert core fixing bracket is fixedly connected with the square electromagnet, and the side surface of the insert core fixing bracket is provided with a king-shaped slot;
one end of the height-adjustable inserting core is rectangular and is fixedly connected with a rectangular groove at the bottom of the functional lamp, the other end of the height-adjustable inserting core is in a king shape, and the height-adjustable inserting core and the inserting groove of the inserting core fixing support are matched and fixedly installed in different channels, so that the vertical height position of the functional lamp is adjusted and controlled.
In an embodiment, the assembly body of the vertical adjusting mechanism assembly comprises a gear dust cover, a shell of the vertical adjusting mechanism assembly, an upper cover plate of the vertical adjusting mechanism assembly, a lower cover plate of the vertical adjusting mechanism assembly, a linear lifting assembly and a vertical transmission assembly:
the gear dust cover is fixed on the upper cover plate of the vertical adjusting mechanism assembly and covers part of the structure of the vertical transmission assembly exposed out of the upper cover plate of the vertical adjusting mechanism assembly;
the vertical adjusting mechanism assembly shell is sleeved outside the upper cover plate of the vertical adjusting mechanism assembly and the lower cover plate of the vertical adjusting mechanism assembly and is fixedly connected with the upper cover plate of the vertical adjusting mechanism assembly and the lower cover plate of the vertical adjusting mechanism assembly;
the linear lifting assembly is connected with the universal lamp fixing support assembly and the vertical transmission assembly, controls the vertical lifting of the universal lamp fixing support assembly and adjusts the vertical height position of the functional lamp;
the vertical transmission assembly is fixedly arranged on the upper cover plate of the vertical adjusting mechanism assembly and the lower cover plate of the vertical adjusting mechanism assembly and connected with the linear lifting assembly to provide power for vertical lifting of the linear lifting assembly.
In one embodiment, the linear lifting assembly of the vertical adjusting mechanism assembly includes a linear lifting tappet, a tappet guide sleeve, a slide rod guide sleeve, a linear lifting platform and a lamp bottom plate support flange:
the outer side surface of the lower end of the linear lifting tappet is connected with the linear lifting platform, and the upper end of the linear lifting tappet penetrates through a tappet guide sleeve and is connected with a lamp bottom plate supporting flange;
the tappet guide sleeve is fixedly arranged on an upper cover plate of the vertical adjusting mechanism assembly;
the linear lifting platform is used for receiving the acting force of the vertical transmission assembly to move up and down;
the sliding rod penetrates through the sliding rod guide sleeve, the upper end of the sliding rod is connected with the upper cover plate of the vertical adjusting mechanism assembly, and the lower end of the sliding rod is connected with the lower cover plate of the vertical adjusting mechanism assembly;
the slide bar guide sleeve is fixedly arranged at the bottom corner of the linear lifting platform;
the lamp bottom plate supports the flange plate and is connected with the universal lamp fixing support assembly.
In an embodiment, the linear lifting assembly of the vertical adjustment mechanism assembly further includes a magnetostrictive displacement sensor and an induction magnetic ring:
the magnetostrictive displacement sensor is arranged on the upper surface of the lower cover plate of the vertical adjusting mechanism assembly, and an iron detecting rod at the front end extends into an opening at the lower end of the linear lifting tappet;
the induction magnetic ring is fixed at the lower end of the linear lifting tappet and penetrates through an iron detection rod at the front end of the magnetostrictive displacement sensor;
the induction magnetic ring moves up and down along with the linear lifting tappet, the magnetic field of an iron detection rod at the front end of the magnetostrictive displacement sensor is changed, the change of the circulating current of the inner coil is caused, and the vertical lifting movement displacement of the linear lifting tappet is determined through a current-displacement conversion curve.
In one embodiment, the vertical transmission assembly of the vertical adjustment mechanism assembly comprises a stepping motor, a vertical transmission worm, a worm transmission sleeve, a deep groove ball bearing and a gear set:
the stepping motor provides power for the vertical lifting motion of the functional lamp;
the vertical transmission worm and the stepping motor are coupled and rotated through a gear set to transmit the power of the stepping motor;
the worm transmission sleeve is arranged at the central position of the linear lifting platform and converts the rotation of the vertical transmission worm into the vertical lifting motion of the linear lifting platform;
the deep groove ball bearings are arranged at two ends of the vertical transmission worm, so that the vertical transmission worm rotates around the axis of the vertical transmission worm.
In an embodiment, the vertical adjusting mechanism assembly further comprises a horizontal laser ranging displacement sensor, which is installed at the bottom of the lower cover plate of the vertical adjusting mechanism assembly and used for measuring the horizontal and horizontal position distance between the left lamp fixing assembly and the right lamp fixing assembly.
In one embodiment, the lateral adjustment mechanism assembly includes a T-shaped rail, a slider, a lateral drive worm, and a worm drive support:
the T-shaped track is fixed on the processing ground and is matched with the sliding block to determine the horizontal transverse movement track of the functional lamp fixing assembly;
the upper end of the sliding block is fixed with the bottom of the lower cover plate of the vertical adjusting mechanism assembly;
two ends of the transverse transmission worm are provided with worm bearings, and the worm bearings are fixed on the processing ground through worm bearing seats;
one end of the transverse transmission worm is fixedly provided with a transmission bevel gear, and the transverse transmission worm rotates around the axis of the transverse transmission worm to transmit the power of the driving motor;
the upper end of the worm transmission support is fixed with the bottom of the lower cover plate of the vertical adjusting mechanism assembly, the middle part of the worm transmission support is provided with a through hole, and the worm transmission support penetrates through the transverse transmission worm to convert the rotation of the transverse transmission worm into horizontal and transverse relative motion of the vertical adjusting mechanism assembly.
In one embodiment, the signal lamp fixing assembly includes a telescopic transverse fixing assembly, a disk-shaped universal fixing assembly, a fork-shaped bracket, a rotary fixing sleeve and a fixing chute:
the number of the telescopic transverse fixing assemblies is 2, the telescopic transverse fixing assemblies are symmetrically distributed relative to the disk-shaped universal fixing assemblies, penetrate through and are fixed on the fork-shaped support and are used for fixing a grille lamp or a tail penetrating lamp of an automobile signal lamp;
the disc-shaped universal fixing assembly penetrates through and is fixed on the fork-shaped support and used for fixing a front marker lamp or a rear marker lamp of an automobile signal lamp;
the upper end of the fork-shaped support is provided with 3 branch struts which are respectively used for installing and fixing the telescopic transverse fixing assembly and the disc-shaped universal fixing assembly;
the rotary fixing sleeve is rotationally connected with the cylinder in the middle of the fork-shaped support, the longitudinal position of the fork-shaped support relative to the fixed sliding chute is locked through the rotation of the rotary fixing sleeve, and the horizontal longitudinal position of the signal lamp is adjusted;
the fixed sliding groove is fixed on the processing ground and matched with the T-shaped structure at the bottom of the fork-shaped support to determine the horizontal longitudinal movement track of the signal lamp fixing assembly body.
In an embodiment, the telescopic transverse fixing assembly of the signal lamp fixing assembly body comprises a transverse fixing frame, a transverse moving core, a fixing buckle, an adjusting rubber pad and a reverse thread fixing bolt:
the transverse fixed frame is strip-shaped in main body, the outer side of the transverse fixed frame is open, a sliding groove is formed in the transverse fixed frame, the transverse movable loose core is matched with the transverse movable loose core through the sliding groove, the transverse movable loose core transversely moves on the transverse fixed frame, and the horizontal transverse position of the signal lamp is adjusted and determined;
the rear part of the transverse fixed frame is of a hollow cylinder structure, penetrates through and is fixed on the fork-shaped support, and the vertical height position of the signal lamp is adjusted and determined;
the fixing buckle is clamped on the transverse movable loose core and the transverse fixing frame to provide an installation plane of the reverse-thread fixing bolt;
the head of the reverse-thread fixing bolt is provided with a threaded hole which is fixedly connected with a signal lamp;
the adjusting rubber pad adjusts the installation clearance of the signal lamp.
In one embodiment, the disk-shaped universal fixing assembly of the signal lamp fixing assembly comprises a marker lamp bracket, a ball-head support rod, a ball-head locking sleeve and a vertical fixing bracket:
the marker light bracket is fixedly connected with a front marker light or a rear marker light of the automobile;
one end of the ball head support rod is a ball head and is connected with the ball head locking sleeve, the position of the ball head is fixed through the ball head locking sleeve, and the other end of the ball head support rod is a straight rod and is fixedly connected with the vertical fixing bracket;
the ball head locking sleeve is fixed through rotation and is connected with the marker light bracket and the ball head support rod;
the middle of the vertical fixing bracket is of an annular structure, penetrates through and is fixed on the fork-shaped support, and the vertical height position of the signal lamp is adjusted and determined.
In an embodiment, the automobile lamp test bench further comprises a dust cloth telescopic dust cover, and the dust cloth telescopic dust cover is installed between the functional lamp fixing assembly body and the processing ground to seal the bottom of the functional lamp fixing assembly body.
In one embodiment, the machined floor is a steel floor.
In one embodiment, the light curtain is in the shape of a semicircular sector, and the circle center of the light curtain is located at the connecting line of the central points of the left and right lamps.
In order to achieve the purpose, the invention provides an automobile lamp testing method of an automobile lamp testing bench, which comprises the following steps:
installing a functional lamp of an automobile, fixing the functional lamp through a functional lamp fixing assembly, and adjusting the vertical height position and the horizontal transverse position of the automobile functional lamp;
mounting a signal lamp of an automobile, fixing the signal lamp through a signal lamp fixing assembly, and adjusting the vertical height position, the horizontal longitudinal position and the horizontal transverse position of the signal lamp of the automobile;
starting a corresponding lamp, measuring and feeding back the illuminance data of each position to the data acquisition system through an illuminance sensor probe on the light curtain;
the evaluation is given against the illuminance standard.
In an embodiment, the step of fixing the functional lamp by the functional lamp fixing assembly further includes: in the universal lamp fixing support assembly utilizing the functional lamp fixing assembly, the vertical height adjusting support assembly body and the transverse height adjusting support assembly body fix the position of the functional lamp.
In an embodiment, the step of adjusting the vertical height position of the functional lamp further includes:
and the vertical height position of the automobile functional lamp is adjusted and determined by utilizing the vertical adjusting mechanism assembly body of the functional lamp fixing assembly body and combining the vertical displacement detection signal.
In one embodiment, the step of adjusting the horizontal transverse position of the functional lamp of the automobile further includes: the horizontal adjusting mechanism assembly body of the functional lamp fixing assembly body is utilized, and the horizontal and horizontal positions of the automobile functional lamp are adjusted and determined by combining the horizontal displacement detection signal.
In an embodiment, the step of fixing the functional lamp by the functional lamp fixing assembly further includes: and determining the longitudinal positioning of the automobile functional lamp by utilizing the mode that the longitudinal positioning reference scribed lines of the transverse height adjusting support assembly body and the vertical height adjusting support assembly body in the universal lamp fixing support assembly of the functional lamp fixing assembly body are aligned with the longitudinal positioning reference scribed lines of the lamp support bottom plate.
In an embodiment, the adjusting the vertical height position of the signal lamp further includes: in a telescopic transverse fixing assembly of the signal lamp fixing assembly, a transverse fixing frame is matched with a fork-shaped support to adjust and determine the vertical height position of a grille lamp or a tail penetrating lamp of a signal lamp;
in a disk-shaped universal fixing assembly utilizing the signal lamp fixing assembly, a vertical fixing frame is matched with a fork-shaped support to adjust and determine the vertical height position of a front marker lamp or a rear marker lamp of a signal lamp.
In one embodiment, the step of adjusting the horizontal longitudinal position of the signal light fixture of the automobile further comprises: the fixed chute of the signal lamp fixing assembly body is matched with the T-shaped structure at the bottom of the fork-shaped support, the horizontal longitudinal movement track of the signal lamp fixing assembly body is determined, the longitudinal position of the fork-shaped support relative to the fixed chute is locked through the rotation of the rotary fixing sleeve, and the horizontal longitudinal position of the signal lamp is adjusted.
In one embodiment, the step of adjusting the horizontal transverse position of the signal light fixture of the automobile further comprises: in the telescopic transverse fixing assembly utilizing the signal lamp fixing assembly, a transverse fixing frame is matched with a transverse moving core-pulling body, and the horizontal and transverse position of a signal lamp is adjusted and determined.
The test bench and the test method for the automobile lamp provided by the invention have the following beneficial effects:
1) the fan-shaped light curtain can quickly measure the light output quantity at different angles and different positions on the basis of fixing the front or rear combined lamp, and can test the lighting performance of the automobile lamp;
2) the illuminance sensor probes are uniformly distributed on the fan-shaped light curtain, so that the illuminance sensor probes can quickly respond and receive signals of the illuminance of the automobile lamp and transmit the signals to the data acquisition system for storage, and compared with the traditional measurement method, the method is more time-saving and higher in precision, and the cost of the whole fan-shaped light curtain is greatly reduced due to the fact that the cost of a single illuminance sensor probe is very low.
3) The universal lamp fixing support assembly structure can be used for installing headlights and tail lamps of different models through the vertical height adjusting support assembly body and the transverse height adjusting support assembly body, each lamp can be prevented from being fixed only by an independent support, the cost is saved, the operation is simple, the universal lamp fixing support assembly structure is provided with a longitudinal positioning reference reticle, and the positioning is accurate.
4) The vertical adjusting mechanism assembly can accurately control the position of the universal lamp fixing support assembly structure by utilizing the stepping motor according to the signal of the magnetostrictive displacement sensor, and is convenient for adjusting the actual ground clearance of the lamp.
5) The transverse adjusting mechanism assembly adopts a worm transmission scheme, the stability of the whole structure is ensured by utilizing the self-locking capacity of the worm, the smoothness of movement is improved by the sliding block and sliding groove mechanism at the bottom, and the noise is reduced.
6) The assembly body is fixed to the signal lamp, can match different Logo lamp, grille lamp and afterbody and run through the lamp, and the function is abundant, and the location is accurate firm, combines omnipotent lamps and lanterns fixed bolster assembly structure, can test the whole effect, the luminance output and the road surface of anterior lamps and lanterns of car, rear portion lamps and lanterns and shine the circumstances such as novel structure.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings in which like reference numerals denote like features throughout the several views, wherein:
FIGS. 1 a-1 b respectively disclose an isometric view and a top view of an automotive lamp test rig in accordance with an embodiment of the present invention;
FIG. 2a discloses a detailed bottom structure view of an automotive lamp test stand according to an embodiment of the invention;
FIG. 2b discloses a structural isometric view of a gray cloth retractable dust cover in accordance with an embodiment of the present invention;
FIG. 2c discloses a top view of the bottom structure of the automotive lamp test stand according to an embodiment of the invention;
FIG. 3a discloses an isometric view of a functional light fixture assembly according to an embodiment of the present invention;
FIG. 3b discloses an isometric view of a right lamp mounting assembly structure in accordance with an embodiment of the present invention;
FIG. 3c shows an isometric view of a right universal lamp mounting bracket assembly in accordance with an embodiment of the present invention;
FIGS. 4 a-4 b respectively illustrate front and rear views of a right universal lamp mounting bracket assembly in accordance with an embodiment of the present invention;
FIGS. 5 a-5 c respectively disclose an isometric view, a top view and a cross-sectional view of a vertical height adjustment mount assembly in accordance with an embodiment of the present invention;
FIGS. 6 a-6 c respectively disclose isometric, plan and cross-sectional views of a lateral height adjustment mount assembly in accordance with an embodiment of the present invention;
FIG. 7a is a diagram of a special structure of a headlamp of an automobile according to an embodiment of the present invention;
FIGS. 7 b-7 c respectively show isometric and cross-sectional views of a rectangular channel mounting assembly for a lamp in accordance with an embodiment of the present invention;
FIGS. 8 a-8 c respectively disclose an isometric view, a detail view, and a top view of a right vertical adjustment mechanism assembly structure in accordance with an embodiment of the present invention;
FIG. 9a illustrates a cross-sectional view of a right vertical adjustment mechanism assembly according to one embodiment of the present invention;
FIG. 9b discloses an isometric view of a slide bar guide sleeve arrangement in accordance with an embodiment of the present invention;
FIG. 9c illustrates a top view of a lateral adjustment mechanism assembly according to an embodiment of the present invention;
FIG. 10a illustrates a cross-sectional view of a lateral adjustment mechanism assembly according to an embodiment of the present invention;
FIGS. 10 b-10 c respectively disclose isometric and side views of a right side transverse adjustment mechanism assembly in accordance with an embodiment of the present invention;
FIGS. 11 a-11 b respectively disclose isometric and plan views of a signal lamp mounting assembly in accordance with an embodiment of the present invention;
FIGS. 12 a-12 b respectively illustrate a rear view and a partial enlarged view of the structure of a signal lamp mounting assembly in accordance with an embodiment of the present invention;
FIG. 12c is a cross-sectional view of a longitudinal fixed gap adjustment of a signal lamp according to an embodiment of the present invention;
FIGS. 13 a-13 b respectively illustrate a detailed view and an exploded view of a telescoping lateral securement assembly in accordance with one embodiment of the present invention;
FIGS. 14 a-14 b respectively disclose isometric and top views of a disk-shaped gimbal mounting assembly structure in accordance with an embodiment of the present invention;
FIGS. 15 a-15 b respectively disclose rear and cross-sectional views of a disk-shaped gimbal mounting assembly structure in accordance with an embodiment of the present invention;
FIG. 16 is a flowchart of an exemplary method for testing a lamp of an automobile with a lamp testing stand according to an embodiment of the present invention.
The meanings of the reference symbols in the figures are as follows:
the lamp comprises a 100-function lamp fixing assembly, a 200-signal lamp fixing assembly, a 300-fan-shaped light curtain, a 400-steel ground and a 500-gray cloth telescopic dust cover;
101, a left lamp fixing assembly, 102, a right lamp fixing assembly and 103, wherein the left lamp fixing assembly is arranged on the left side of the lamp fixing assembly;
104 left universal lamp fixing bracket assembly, 105 left vertical adjusting mechanism assembly and 106 left transverse adjusting mechanism assembly;
107 right universal lamp fixing support assembly, 108 right vertical adjusting mechanism assembly body, 109 right transverse adjusting mechanism assembly body;
a right headlamp of a 110 automobile, a 111 vertical height adjusting support assembly, a 112 transverse height adjusting support assembly, a 113 lamp bracket bottom plate, 114 longitudinal positioning reference reticle and 115 bolt holes;
a disc-shaped electromagnet 116, a height adjusting support 117, a vertical height adjusting screw 118a, a transverse height adjusting screw 118b, a lamp fixing screw 119, a magnet exciting coil 120, a positioning reference reticle 121, an anti-skid rubber pad 122, a transverse displacement compensation plate locking screw 123 and a transverse displacement compensation plate 124;
125 lamp rectangular groove fixing assembly, 126 square electromagnet, 127 height-adjustable inserting core and 128 inserting core fixing support;
129 gear dust cover, 130 vertical adjusting mechanism assembly shell, 131 vertical adjusting mechanism assembly upper cover plate, 132 vertical adjusting mechanism assembly lower cover plate, 133 horizontal laser ranging displacement sensor, 134 fixing stud and 135 round nut;
136 linear lifting tappets, 137 tappet guide sleeves, 138 magnetostrictive displacement sensors, 139 induction magnetic rings, 140 linear lifting platforms, 141 sliding rods, 142 sliding rod guide sleeves, 143 positioning pins and 144 lamp bottom plate supporting flange plates;
145 step motor, 146 transmission master gear, 147 transmission slave gear, 148 vertical transmission worm, 149 worm transmission sleeve and 150 deep groove ball bearing;
151T-shaped slide way, 152 slide block, 153 transverse transmission worm, 154 worm bearing seat, 155 transmission bevel gear, 156 worm transmission support and 157 limit bolt;
158 of the welding points, and,
201 telescopic transverse fixing assembly, 202 disc-shaped universal fixing assembly, 203 fork-shaped bracket, 204 rotary fixing sleeve and 205 fixing sliding groove;
206 left grille lamp, 207 right grille lamp, 208 automobile Logo lamp;
209 transversely fixing a frame, 210 transversely moving a core, 211 fixing a buckle, 212 adjusting a rubber pad, 213 reversely threading a fixing bolt, 214 positioning a locking nut and 215 fixing screws of the grille lamp;
216Logo lamp support, 217 bulb pole support, 218 bulb locking sleeve, 219 locking nut, 220 vertical fixing bracket, 221 limit nut, 222 external thread, 223T type structure, 224 round nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The automobile lamp comprises a functional lamp and a signal lamp. The functional lamps comprise automobile headlights and automobile tail lights, and the signal lamps comprise front signal lamps and rear signal lamps. The front signal lamp includes a grille lamp and a Logo lamp. The rear signal lamp includes a rear penetration lamp and a rear Logo lamp.
According to the technical scheme provided by the invention, on the basis of a traditional automobile lamp light distribution performance test method, the ground clearance of the front and rear lamps of the automobile, the horizontal longitudinal distance and the horizontal transverse distance of the automobile body are determined according to the design data of the whole automobile, the front or rear combined lamp of the automobile is fixed on a test bed according to the geometric position, and the relative position relation of the automobile lamp on the whole automobile is simulated.
In order to reduce the geometric error of the manual operation on the test of the light distribution performance of the automobile lamp, the automobile lamp is only required to be fixed on an automobile lamp test bench, and the automobile lamp is accurately positioned through a stepping motor and a distance measuring sensor, so that the multidirectional position adjustment of the automobile lamp on the automobile lamp test bench is realized.
After the position of the automobile lamp is fixed, various combined lamps are lightened through the lamp lighting box according to control logic, the light output quantity of the automobile lamp at different positions is collected in real time by using the illuminance sensor uniformly distributed on the fan-shaped light curtain and the data acquisition system at the background, the regulation and design requirements are compared, whether the light distribution performance of the automobile lamp meets the requirements or not is determined, and the direction is provided for the next step of lamp structure rectification and improvement.
The invention provides an automobile lamp test bench which specifically comprises a light curtain, a processing ground, a functional lamp fixing assembly and a signal lamp fixing assembly.
The processing ground is a flat plane and needs to meet certain flatness requirements. As a preferred embodiment, the processed ground is made of steel, and cement pouring is not adopted.
The light curtain is fixedly installed on the processing ground, and the inside of the light curtain is provided with a light intensity sensor probe which is used for collecting the light output quantity of each position of the automobile lamp in the opening state and outputting the light intensity. As a preferred embodiment, the light curtain is in the shape of a half circle sector.
The functional lamp fixing assembly body is fixedly installed on the processing ground and used for installing the functional lamp and adjusting the vertical height position and the horizontal transverse position of the functional lamp.
The signal lamp fixing assembly is fixedly installed on the processing ground and used for installing signal lamps and adjusting the vertical height position, the horizontal longitudinal position and the horizontal transverse position of the signal lamps.
Fig. 1a and 1b respectively show an isometric view and a top view of an automotive lamp testing stand according to an embodiment of the present invention, and as shown in fig. 1a to 2c, the automotive lamp light distribution performance testing stand according to the present invention comprises a functional lamp fixing assembly 100, a signal lamp fixing assembly 200, a fan-shaped light curtain 300, a steel floor 400 and a gray cloth retractable dust cover 500.
Firstly, a coordinate system is set as a vehicle body coordinate system, and the coordinate Z direction is defined as the vehicle height direction and is positive upwards, the Y direction is the vehicle width direction and is positive rightwards, the X direction is the vehicle length direction and is positive backwards. The vertical height position is the height position in the Z direction, the horizontal longitudinal position is the position in the X direction, the horizontal transverse position is the position in the Y direction, and the X direction and the Y direction form a horizontal plane.
The functional lamp fixing assembly 100 is mainly used for mounting functional lamps such as a front lamp and a tail lamp, is fixedly mounted on a steel ground 400, and adjusts the vertical height position and the horizontal transverse position of the functional lamps. The assembly 100 for fixing the functional lamp comprises a functional lamp fixing assembly and a driving motor 103.
The number of the functional lamp fixing assemblies is 2, the functional lamp fixing assemblies comprise a left lamp fixing assembly 101 and a right lamp fixing assembly 102 which are respectively located on two sides of a driving motor 103 and are symmetrically arranged, and the distance between the left lamp fixing assembly and the right lamp fixing assembly is adjusted through screw transmission, so that the problem that horizontal and transverse positions of headlights or tail lamps of different vehicle types are different is solved.
And the driving motor 103 is used for providing power for adjusting the horizontal transverse position for the left lamp fixing assembly 101 and the right lamp fixing assembly 102. In one embodiment, the output power of the drive motor 103 is 4.5 kw.
Because the left lamp fixing assembly 101 and the right lamp fixing assembly 102 have the same structure, the left lamp fixing assembly 101 includes a left universal lamp fixing bracket assembly 104, a left vertical adjusting mechanism assembly 105, and a left horizontal adjusting mechanism assembly 106. Correspondingly, the right lamp fixing assembly 102 includes a right universal lamp fixing bracket assembly 107, a right vertical adjusting mechanism assembly 108 and a right lateral adjusting mechanism assembly 109.
The structural composition of the right lamp mounting assembly 102 is selected for the following description. As shown in fig. 3 a-4 b, the universal lamp fixing bracket assembly, including the left universal lamp fixing bracket assembly 104 and the right universal lamp fixing bracket assembly 107, can be used to match and mount different sizes of headlights and taillights of the vehicle.
The lower end of the right universal lamp fixing support assembly 107 is connected with the right vertical adjusting mechanism assembly 108, and the upper end of the right universal lamp fixing support assembly is provided with a fixed function lamp which is an automobile right headlamp 110. Preferably, the size of the headlight 110 is 635.5mm in the X direction, 534.6mm in the Y direction and 425.6mm in the Z direction. The geometric dimension of the headlamp is large, and the installation of other small-sized automobile headlamps and tail lamps on the universal lamp fixing support assembly is not problematic under the condition of meeting the requirement of a large-sized lamp.
The upper end of the right vertical adjusting mechanism assembly 108 is fixedly connected with the right universal lamp fixing support assembly 107, and the lower end of the right vertical adjusting mechanism assembly 108 is fixedly connected with the right transverse adjusting mechanism assembly 109, so that the vertical height position of the functional lamp can be adjusted.
The lower end of the right lateral adjusting mechanism assembly 109 is fixedly connected with the steel ground 400, and the upper end of the right lateral adjusting mechanism assembly is connected with the right vertical adjusting mechanism assembly 108, so that the horizontal lateral position of the functional lamp is adjusted.
The right universal lamp fixing bracket assembly 107 of the right lamp fixing assembly 102 comprises a right headlamp 110 of the automobile, a vertical height adjusting support assembly 111, a horizontal height adjusting support assembly 112 and a lamp bracket base plate 113.
The vertical height adjusting support assembly 111 has an upper end fixedly connected with the right headlamp 110 of the automobile and a lower end fixedly connected with the lamp support base plate 113 to adjust a vertical small displacement gap of the right headlamp 110 of the automobile.
The upper end of the transverse height adjusting support assembly 112 is fixedly connected with the right headlamp 110 of the automobile, and the lower end of the transverse height adjusting support assembly is fixedly connected with the lamp support base plate 113, so that the vertical and horizontal small displacement gaps of the right headlamp 110 of the automobile can be adjusted.
The lower end of the lamp support bottom plate 113 is connected with the right vertical adjusting mechanism assembly 108. And a bottom plate 113 of the lamp bracket is made of a steel plate with the thickness of 10 mm. The overhead geometry of a typical lamp is irregular, with a tendency to streamline, and accordingly, the lamp holder base plate 113 is not rectangular.
The lamp bracket bottom plate 113 is provided with a bolt hole 115 at the center. The bolt holes 115 are used to connect the lamp base plate support flange 144 in the right vertical adjustment mechanism assembly 108. Optionally, the bolt holes 115 are of the M12 type, 6 in number. The lamp support base plate 113 is provided with a plurality of longitudinal positioning reference scribed lines 114 with different lengths on the upper surface in the longitudinal direction, and the longitudinal positioning reference scribed lines are used for being matched with the positioning reference scribed lines on the outer surfaces of the disc-shaped electromagnets 116 in the vertical height adjusting support assembly body 111 and the transverse height adjusting support assembly body 112, so that the longitudinal direction of the functional lamp is corrected and the functional lamp is ensured to be in a correct loading state.
Fig. 5c is a cross-sectional view taken along a-a of fig. 5b, and as shown in fig. 5 a-5 c, a vertical height adjustment support assembly 111 includes a disc-shaped electromagnet 116, a height adjustment support 117, a vertical height adjustment screw 118a, and a lamp fixing screw 119. Optionally, the light fixture set screw 119 is of the M5 type.
The disc-shaped electromagnet 116 is fixedly connected with the height adjusting support 117, and generates magnetic force in an electrifying mode to fix the height adjusting support 117 on the lamp bracket bottom plate 113. The disc-shaped electromagnet 116 generates a magnetic force by energizing the exciting coil 120, so that the vertical height adjusting support assembly 111 is fixed to the lamp holder base plate 113. The disc-shaped electromagnet 116 is engraved with a positioning reference scribing line 121 on the outer side, and is matched with the longitudinal positioning reference scribing line 114 of the lamp bracket bottom plate 113, so that the lamp can be conveniently positioned in the longitudinal direction. The bottom of the disc-shaped electromagnet 116 is provided with an anti-skid rubber pad 122, so that the friction force between the disc-shaped electromagnet 116 and the lamp bracket bottom plate 113 is increased, and the accurate positioning is ensured.
The height adjusting support 117 has an internal thread at the upper end thereof, is connected to the lower end of the vertical height adjusting screw 118a, and adjusts the small vertical displacement gap of the right headlamp 110 of the vehicle by rotating the vertical height adjusting screw 118 a. The height adjusting support 117 is provided with bolt holes at the bottom and is mounted on the disc-shaped electromagnet 116 through screws. Optionally, the bolt holes are of type M3, and the number is 3. The height adjusting support 117 is hollow in the middle, the upper part of the height adjusting support is in a bottle neck shape, the diameter of the upper part of the height adjusting support is smaller than that of the middle part of the height adjusting support 117, and the upper part of the height adjusting support 117 is provided with internal threads for being connected with a vertical height adjusting screw 118 a. By rotating the vertical height adjusting screw 118a, the vertical position of the fixing structure at the top end of the height adjusting screw is controlled, and the position of the fixing leg of the headlamp housing is limited.
The vertical height adjusting screw 118a has an upper end for fixing the housing of the right headlamp 110 of the automobile and a lower end with a bolt structure. The upper end head of the vertical height adjusting screw 118a is a cylinder. Alternatively, the cylinder has a diameter of 20 mm. The upper surface of the cylinder is provided with a threaded hole for matching with a lamp fixing screw 119 to lock the shell of the lamp. Optionally, the threaded hole is of the M5 type. A vertical height adjusting screw 118a, a bolt at the bottom of the lower end, connected with the upper end of the height adjusting support 117. Optionally, the bolt is of type M10. According to the size of the actual lamp fixing foot, the vertical height adjusting screw rods 118a with different lengths can be customized, and the vertical fixing stability of the lamp is ensured. Optionally, the length of the bolt is 100mm, and vertical height adjustment of the lamp between 120mm and 220mm can be achieved.
Fig. 6c is a cross-sectional view taken along a-a of fig. 6b, and as shown in fig. 6 a-6 c, the lateral height adjustment support assembly 112 includes a disc-shaped electromagnet 116, a height adjustment support 117, a lateral height adjustment screw 118b, a lateral displacement compensation plate locking screw 123, a lateral displacement compensation plate 124, and a lamp fixing screw 119. Optionally, the light fixture set screw 119 is of the M5 type. The disc-shaped electromagnet 116, the height adjusting support 117 and the vertical height adjusting support assembly 111 in the transverse height adjusting support assembly 112 have the same structure, that is, the bottom mounting and fixing structure is the same.
The disc-shaped electromagnet 116 is fixedly connected with the height adjusting support 117, and generates magnetic force in an electrifying mode to fix the height adjusting support 117 on the lamp bracket bottom plate 113. The height adjusting support 117 has an internal thread on the upper end thereof, is connected to the lower end of the lateral height adjusting screw 118b, and adjusts the small vertical displacement gap of the right headlamp 110 of the vehicle by rotating the lateral height adjusting screw 118 b.
In order to meet the requirement of lateral fixation of the lamp, the head structure of the lateral height adjusting screw 118b in the lateral height adjusting support assembly 112 is different from that of the vertical height adjusting screw 118a, and two structures, namely a lateral displacement compensation plate locking screw 123 and a lateral displacement compensation plate 124, are added.
The middle of the upper end head of the transverse height adjusting screw 118b is provided with a rectangular groove for inserting the transverse displacement compensation plate 124. Optionally, the thickness of the rectangular slot is 5 mm. The transverse height adjusting screw 118b is provided with a cut-out plane at both ends of the upper end head, and a hole is formed along the normal direction of the cut-out plane, and the transverse displacement compensation plate 124 and the transverse height adjusting screw 118b are fixed together by using a transverse displacement compensation plate locking screw 123. Because the two are fastened by a screw, the transverse displacement compensation plate 124 can axially rotate around a fixed point to compensate small transverse and vertical displacement gaps in the installation process of the lamp shell. The lower end of the transverse height adjusting screw 118b is in a bolt structure and is connected with the upper end of the height adjusting support 117.
The transverse displacement compensation plate 124 is T-shaped, the narrow end of the transverse displacement compensation plate is inserted into the rectangular groove of the transverse height adjusting screw 118b, the narrow end of the transverse displacement compensation plate is provided with a hole for connecting to the head of the transverse height adjusting screw 118b, and the wide end of the transverse displacement compensation plate is provided with a vertical long groove for transversely fixing the lamp housing and adjusting the horizontal transverse small displacement gap of the right headlamp 110 of the automobile. Optionally, the lateral displacement compensation plate 124 is 5mm thick.
The lateral displacement compensation plate locking screw 123 passes through the upper end head of the lateral height adjustment screw 118b and the lateral displacement compensation plate 124, and fixes the lateral displacement compensation plate 124 and the lateral height adjustment screw 118 b.
Through the cooperation of horizontal altitude mixture control support assembly body 112 and vertical altitude mixture control support assembly body 111, can guarantee that car lamps and lanterns are fixed at lamps and lanterns support bottom plate 113, the height position is adjustable wantonly, utilizes the vertical location benchmark groove 114 and the location benchmark groove 121 in the structure, guarantees that the structure is vertically aligned, and vertical altitude is adjustable, and the horizontal adjustment of left and right sides car light then can be accomplished through the assembly body of horizontal adjustment mechanism assembly.
As shown in fig. 7 a-7 c, besides the unidirectional screw fastening of the car lamp, some car lamps may have a rectangular slot structure at the bottom for being inserted into some fastening devices, such as the front-protection lamp bracket. For the light distribution performance test of the light, the automobile lamp can be stably fixed by the vertical height adjusting support assembly 111 and the transverse height adjusting support assembly 112, but in order to meet the requirement of the vibration test of the automobile lamp, part of the automobile lamp needs to restrain the rectangular groove structure at the bottom of the lamp. Further, the present invention adopts the lamp rectangular groove fixing assembly 125 to fix the rectangular groove at the bottom of the right headlamp 110 of the automobile lamp.
The lamp rectangular groove fixing assembly 125 structurally comprises a square electromagnet 126, an adjustable-height inserting core 127 and an inserting core fixing support 128. The square electromagnet 126 has the same working principle as the disc electromagnet 116, but has a slightly different shape, and generates magnetic force by electrifying to fix the ferrule fixing bracket on the lamp bracket bottom plate 113. The front surface and the upper part of the ferrule fixing bracket 128 are provided with four mounting positioning holes for fixedly connecting the ferrule fixing bracket 128 and the square electromagnet 126.
The ferrule holder 128 is laterally provided with a plurality of "king" shaped slots for holding the height-adjustable ferrules 127. Optionally, the ferrule holding bracket 128 is 20mm thick. Height-adjustable lock pin 127, one end are the rectangle, with the bottom rectangular channel fixed connection of car right side headlamp 110, the other end is "king" shape, through the slot with lock pin fixed bolster 128 at different channels fixed mounting of mutually supporting, vertical high position of adjustment control car right side headlamp 110 realizes the fine setting of vertical distance.
The structure of the right universal lamp mounting bracket assembly 107 of the right lamp mounting assembly 102 is described in detail above, and the right vertical adjustment mechanism assembly 108 of the right lamp mounting assembly 102 is described in detail below.
Fig. 9a is a cross-sectional view taken along a-a of fig. 8c, and as shown in fig. 8 a-9 b, the right vertical adjustment mechanism assembly 108 of the right lamp fixing assembly 102 includes a gear dust cover 129, a vertical adjustment mechanism assembly housing 130, a vertical adjustment mechanism assembly upper cover plate 131, a vertical adjustment mechanism assembly lower cover plate 132, a linear lifting assembly, a vertical transmission assembly, a transverse laser ranging displacement sensor 133 and a fixing stud 134.
The gear dust cover 129 is fixed on the upper cover plate 131 of the vertical adjusting mechanism assembly and covers part of the structure of the vertical transmission assembly exposed out of the upper cover plate 131 of the vertical adjusting mechanism assembly.
The vertical adjusting mechanism assembly shell 130 is sleeved outside the vertical adjusting mechanism assembly upper cover plate 131 and the vertical adjusting mechanism assembly lower cover plate 132, and is fixedly connected with the vertical adjusting mechanism assembly upper cover plate 131 and the vertical adjusting mechanism assembly lower cover plate 132.
The linear lifting assembly is connected with the right universal lamp fixing bracket assembly 107 and the vertical transmission assembly, controls the vertical lifting of the right universal lamp fixing bracket assembly 107, and adjusts the vertical height position of the right headlamp 110 of the automobile.
The vertical transmission assembly is fixedly arranged on an upper cover plate 131 of the vertical adjusting mechanism assembly and a lower cover plate 132 of the vertical adjusting mechanism assembly, is connected with the linear lifting assembly and provides power for vertical lifting of the linear lifting assembly.
The gear dust cover 129 is a single-opening cuboid thin shell member, is fixed on an upper cover plate 131 of the vertical adjusting mechanism assembly, covers the transmission main gear 146, the transmission driven gear 147 and the deep groove ball bearing 150 below in the vertical transmission assembly, and prevents dust from entering the surface of the gear to cause transmission failure. Optionally, the fixing mode is screw fixing, and the number of the screws is 3, wherein the screws are of M5 types. The housing material of the gear dust cover 129 is a metal material, preferably, the metal material is iron.
The vertical adjusting mechanism assembly shell 130 has a thin-walled rectangular channel steel shape in its entire cross section, and is fitted over the vertical adjusting mechanism assembly upper cover plate 131 and the vertical adjusting mechanism assembly lower cover plate 132. The vertical adjustment mechanism assembly housing 130 prevents the linear lifting assembly and the vertical transmission assembly inside the right vertical adjustment mechanism assembly 108 from being affected by the external environment, which increases the adjustment error of the transverse relative position of the automobile lamp. Optionally, the vertical adjustment mechanism assembly housing 130 is fixed to the vertical adjustment mechanism assembly upper cover plate 131 and the vertical adjustment mechanism assembly lower cover plate 132 by screws.
Optionally, the number of the fixing studs 134 is 4, and the fixing studs are distributed at four corners of the vertical adjusting mechanism assembly upper cover plate 131 and the vertical adjusting mechanism assembly lower cover plate 132, so as to connect and fix the vertical adjusting mechanism assembly upper cover plate 131 and the vertical adjusting mechanism assembly lower cover plate 132. Optionally, the fixing stud 134 is of the M30 type.
The upper cover plate 131 of the vertical adjusting mechanism assembly and the lower cover plate 132 of the vertical adjusting mechanism assembly are made of steel plates with the thickness of 20mm, the length of the steel plates is 320mm, and the width of the steel plates is 540 mm. The vertical adjusting mechanism assembly upper cover plate 131 and the vertical adjusting mechanism assembly lower cover plate 132 are provided with threaded holes at four corners, are matched with the fixing studs 134 and are used for connecting the fixing studs 134. Optionally, the threaded hole is M30 type for connecting a fixing stud 134 of M30 type. In order to connect the structures of the slide rod 141, the slide rod guide sleeve and the like of the linear lifting assembly, through holes are formed at the relevant positions of the upper cover plate 131 of the vertical adjusting mechanism assembly and the lower cover plate 132 of the vertical adjusting mechanism assembly. Upper vertical adjustment mechanism assembly cover 131, lower vertical adjustment mechanism assembly cover 132, and fixing stud 134 form the primary frame of right vertical adjustment mechanism assembly 108.
The main frame structure of the right vertical adjustment mechanism assembly 108 may be assembled in the following order:
s101: the lower cover plate 132 of the vertical adjusting mechanism assembly is laid flat, and 4 fixing studs 134 are screwed into the reserved threaded holes respectively, so that the structures of the fixing studs 134 are not exposed at the bottom end;
s102: 4 fixing studs 134 are locked above the lower cover plate 132 of the vertical adjustment mechanism assembly by round nuts 135;
s103: installing an upper cover plate 131 of the vertical adjusting mechanism assembly;
selecting a position with a certain height from the upper plane of the lower cover plate 132 of the vertical adjusting mechanism assembly, wherein the optional height is 450mm, screwing 2 round nuts 135 into the 4 fixing studs 134 respectively, and forming the mounting surface of the upper cover plate 131 of the vertical adjusting mechanism assembly on the upper plane of the round nut 135 by using the self-locking principle of the double nuts.
S104: the fixing studs 134 are rotated to install the upper cover plate 131 of the vertical adjustment mechanism assembly at a preset position of the installation surface, and a round nut 135 is additionally arranged at each fixing stud 134 above the upper cover plate 131 of the vertical adjustment mechanism assembly for locking.
The linear lift assembly of the right vertical adjustment mechanism assembly 108 will now be described in detail. The linear lifting assembly comprises a linear lifting tappet 136, a tappet guide sleeve 137, a magnetostrictive displacement sensor 138, an induction magnetic ring 139, a linear lifting platform 140, a slide rod 141, a slide rod guide sleeve 142, a positioning pin 143 and a lamp bottom plate supporting flange plate 144.
The outer side surface of the lower end of the linear lifting tappet 136 is connected with a linear lifting platform 140, and the upper end of the linear lifting tappet 136 passes through the tappet guide sleeve 137 and is connected with a lamp bottom plate support flange 144. The tappet guide sleeve 137 is fixedly installed in the upper cover plate 131 of the vertical adjustment mechanism assembly. The linear lifting platform 140 is moved up and down by the action of the vertical transmission assembly. The sliding rod 141 penetrates through the sliding rod guide sleeve 142, the upper end of the sliding rod is connected with the upper cover plate 131 of the vertical adjusting mechanism assembly, and the lower end of the sliding rod is connected with the lower cover plate 132 of the vertical adjusting mechanism assembly. The slide bar guide sleeve 142 is fixedly installed at the bottom corner of the linear lifting platform 140. The lamp bottom plate support flange 144 is connected with the right universal lamp fixing bracket assembly 107.
The linear lift platform 140 is generally triangular, and has a through hole at a vertex angle thereof to which one end of the linear lift tappet 136 is fixed. Optionally, the two are connected by welding. The lifting stroke of 350mm-400mm from the lowest position to the highest position of the linear lifting platform 140 is ensured, because the ground clearance of a common automobile lamp is 650mm-1000mm, and the vertical adjusting mechanism assembly needs to have the basic lifting stroke of more than 350mm in order to complete the light distribution performance test of lamps of different models.
The linear lifter 136 has a lower end having an outer surface connected to a linear lifter platform 140. Optionally, the connection mode is a welding mode. The connection point between the lower end of the linear lift stile 136 and the linear lift platform 140 is a weld 158. The linear lifter 136 has an open lower end for facilitating insertion of an iron detection rod at the front end of the magnetostrictive displacement sensor 138. The lower end of the linear lifting tappet 136 is open, the diameter is 12mm, and the length reaches 350 mm.
And a magnetostrictive displacement sensor 138 mounted on the upper surface of the lower cover plate 132 of the vertical adjustment mechanism assembly, wherein an iron detection rod at the front end extends into an opening at the lower end of the linear lifting tappet 136. The linear lifter 136 has an induction magnet ring 139 fixed to the lower end thereof. Optionally, the fixing mode is screw fixing. And the induction magnetic ring 139 penetrates through an iron detection rod at the front end of the magnetostrictive displacement sensor 138. In the up-and-down movement process of the linear lifting tappet 136, the induction magnetic ring 139 can change the magnetic field at the sticker probe at the front end of the magnetostrictive displacement sensor 138, so that the change of the current flowing in the inner coil can be caused, and the vertical lifting movement displacement of the linear lifting tappet 136 can be determined through the current-displacement conversion curve.
The linear lifter 136 has an external thread on its top end and is connected to the lamp base plate support flange 144 by a thread. The linear lifter 136 has a portion cut away from both sides of the top end thereof to leave a fixed plane for mounting a positioning pin 143 for locking the lamp base plate support flange 144. The middle part of the linear lifting tappet 136 is sleeved with a tappet guide sleeve 137, so that the stability of the vertical movement of the linear lifting tappet 136 is ensured.
The linear lifting platform 140 fixes the slide bar guide sleeve 142 at the bottom corner position through a screw. Optionally, the screw is of the M5 type. The sliding rod 141 passes through the middle of the sliding rod guide sleeve 142, and the two are in transition fit. Two ends of the two sliding rods 141 are respectively connected to the upper cover plate 131 of the vertical adjusting mechanism assembly and the lower cover plate 132 of the vertical adjusting mechanism assembly. Optionally, the connection mode is a welding mode. The center of the linear lifting platform 140 is provided with a worm transmission sleeve 149 in the vertical transmission assembly, which is used for connecting a vertical transmission worm 148 in the vertical transmission assembly, transmitting power from a stepping motor 145 in the vertical transmission assembly and pushing the linear lifting platform 140 to move up and down.
As shown in fig. 9b, rod guide sleeve 142 is similar in construction to tappet guide sleeve 137. The 4 corners of the slide bar guide sleeve 142 are fixed with the linear lifting platform 140 through screws. Optionally, the screw is of the M5 type. The middle of the slide bar guide sleeve 142 is a round hole for the slide bar 142 to pass through. Linear lifter 136 is in transition fit with lifter guide sleeve 137, slide rod 141 and slide rod guide sleeve 142, the gap is coated with lubricating oil, and slide rod guide sleeve 142 and lifter guide sleeve 137 play a role in guiding.
The vertical drive assembly of the right vertical adjustment mechanism assembly 108 will now be described in detail. And the vertical transmission assembly comprises a stepping motor 145, a transmission main gear 146, a transmission slave gear 147, a vertical transmission worm 148, a worm transmission sleeve 149 and a deep groove ball bearing 150.
The stepping motor 145 provides power for vertical lifting of the right headlamp 110 of the automobile. The vertical driving worm 148 is coupled with the stepping motor 145 through a gear set to rotate, and transmits the power of the stepping motor 145. The gear set includes a drive master gear 146 and a drive slave gear 147. The worm driving sleeve 149 is installed at the center of the linear elevating platform 140, and converts the rotation of the vertical driving worm 148 into the vertical elevating movement of the linear elevating platform 140. The deep groove ball bearings 150 are installed at both ends of the vertical driving worm 148 to allow the vertical driving worm 148 to perform a rotational motion around its own axis.
The stepping motor 145, which is a three-phase motor, provides power for the vertical movement positioning of the automobile lamp, and combines the real-time displacement feedback of the magnetostrictive displacement sensor 138 to accurately control the vertical position of the automobile lamp, which is consistent with the ground clearance of the whole automobile lamp. Optionally, the stepping motor 145 is a 86BYGH3096-3306A mainstream three-phase motor. An output shaft of the stepping motor 145 is fixed to the driving main gear 146 by a spline of a bar shape.
The transmission main gear 146 and the transmission driven gear 147 are engaged with each other, and the two gears have the same structure and are both straight toothed spur gears. The driven slave gear 147 is secured to the vertical drive worm 148 by elongated splines. The two ends of the vertical drive worm 148 are provided with 2 pairs of deep groove ball bearings 150 in an interference fit mode, so that the vertical drive worm 148 can drive around the axis of the vertical drive worm 148.
The stepping motor 145 transmits power to the vertical driving worm 148 through the transmission main gear 146 and the transmission auxiliary gear 147, and the rotation of the vertical driving worm 148 can be converted into the vertical lifting motion of the lamp bottom plate supporting flange plate 144 through the matching of the vertical driving worm 148 and the worm driving sleeve 149.
And the transverse laser ranging displacement sensor 133 is arranged at the bottom of the lower cover plate 132 of the vertical adjusting mechanism assembly and is used for measuring the horizontal transverse position distance between the left lamp fixing assembly 101 and the right lamp fixing assembly 102. Optionally, the mounting manner is screw mounting. The transverse laser ranging displacement sensor 133 is a set, and is installed at the emitting end of the transverse laser ranging displacement sensor 133 of the right lamp fixing assembly 102, and is installed at the receiving end of the transverse laser ranging displacement sensor 133 of the left lamp fixing assembly 101. Obviously, installing the transmitting end of the transverse laser ranging displacement sensor 133 on the left lamp fixing assembly 101 and installing the receiving end on the right lamp fixing assembly 102 does not affect the implementation of the overall function of the transverse laser ranging displacement sensor 133.
Under the driving of the driving motor 103, the left lamp fixing assembly 101 and the right lamp fixing assembly 102 move in the transverse direction, and the transverse laser ranging displacement sensor 133 can feed back the horizontal transverse position distance of the fixed lamps on the left side and the right side in real time.
The composition of the right vertical adjustment mechanism assembly of the right lamp fixing assembly 102 is described in detail above, and the right lateral adjustment mechanism assembly 109 of the right lamp fixing assembly 102 is described in detail below.
Fig. 10a is a cross-sectional view taken along a-a of fig. 9c, and as shown in fig. 9 c-10 c, the left lamp fixing assembly 101 is driven by the driving motor 103 to move laterally through the left lateral adjusting mechanism assembly 106 and the right lamp fixing assembly 102 is driven by the right lateral adjusting mechanism assembly 109.
The right lateral adjustment mechanism assembly 109 of the right lamp mounting assembly 102 includes, 2 pairs of T-shaped slides 151, a slider 152, a lateral drive worm 153, a worm bearing seat 154, a drive bevel gear 155, and a worm drive support 156.
The 2 pairs of T-shaped slideways 151 are symmetrically arranged relative to the driving motor 103 along the longitudinal plane, and the distance between the central axes of each pair of T-shaped slideways 151 is 320 mm.
The T-shaped slide 151 with a T-shaped section is matched with the slide block 152 to determine the horizontal transverse movement track of the functional lamp fixing assembly body. The T-shaped sliding rail 151 is fixed to the steel floor 400 by screws of various numbers according to the length. The T-shaped slide 151 and the slide 152 are in transition fit. The upper end of the sliding block 152 is fixed to the bottom of the lower cover plate 132 of the vertical adjustment mechanism assembly. Optionally, the fixing mode is bolt fixing. And limiting bolts 157 are arranged on two sides of the T-shaped slide way 151 and are used for preventing the right lateral adjusting mechanism assembly 109 from exceeding a preset safe position and causing danger. Preferably, the number of the limit bolts 157 of each pair of T-shaped slideways 151 is 4.
The transverse transmission worm 153 has self-locking property, large transmission ratio and stable transmission. The transverse transmission worm 153 is close to one end of the driving motor 103, a transmission bevel gear 155 is fixed through a long strip-shaped spline, and the transverse transmission worm 153 rotates around the axis of the transverse transmission worm 153 to receive and transmit power of the driving motor 103. The two ends of the transverse transmission worm 153 are provided with 2 pairs of worm bearings, and the worm bearings are fixed on the steel ground 400 through worm bearing seats 154. The length of the transverse transmission worm 153 is 750mm, and the unidirectional transmission range is within 500 mm.
The upper end of the worm drive support 156 is fixed to the bottom of the vertical adjustment mechanism assembly lower cover plate 132, and the rotation of the transverse drive worm 153 around the axis is converted into the horizontal transverse relative motion between the left lateral adjustment mechanism assembly 106 and the right lateral adjustment mechanism assembly 109. Optionally, the fixing mode is bolt fixing, the number of the bolts is 4, and the bolts are of M10 type. The middle of the worm drive support 156 is a through hole, and penetrates through the transverse drive worm 153.
The output shaft head of the driving motor 103 is connected with a transmission bevel gear 155 through a long strip spline, two sides of the bevel gear are connected with transverse transmission worms 153 in the left lamp fixing assembly 101 and the right lamp fixing assembly 102, the head of the transverse transmission worm 153 is provided with a driven bevel gear, the driving motor 103 is used for transmitting power of the driving motor 103, and the driving motor is used for changing the transverse position of the vertical adjusting mechanism assembly body.
The left lateral adjusting mechanism assembly 106 and the right lateral adjusting mechanism assembly 109 are identical in structure and are transversely distributed on two sides of the driving motor 103, the worm transmission support 156 and the sliding block 152 can transversely move along the transverse transmission worm 153 and the T-shaped slide 151, the two-way movement range is within 1m, the installation fixed distance of the left automobile lamp and the right automobile lamp is determined according to the actual installation size, and the distance between the left automobile lamp and the right automobile lamp can be accurately adjusted by referring to the lateral laser ranging displacement sensor 133.
The above-mentioned detailed description of the structure of the functional lamp fixing assembly 100 and the following detailed description of the signal lamp fixing assembly 200 are provided.
Fig. 12b is a partial enlarged view of the circled portion in fig. 12a, and as shown in fig. 11 a-12 c, the signal lamp fixing assembly 200 comprises a signal lamp, a telescopic transverse fixing assembly 201, a disk-shaped universal fixing assembly 202, a fork bracket 203, a rotary fixing sleeve 204 and a fixing sliding groove 205.
The signal lights of the automobile include a front signal light and a rear signal light. In the present embodiment, the signal light fixing assembly 200 mounts a front signal light of an automobile, the front signal light including a grille light of the automobile including a left grille light 206 and a right grille light 207 and an automobile Logo light 208. The left grille lamp 206, the right grille lamp 207, and the automotive Logo lamp 208 in the signal lamp fixing assembly 200 are fixed and installed according to the actual automotive signal lamp size. The rear signal lamp includes a rear penetration lamp and a rear Logo lamp. The rear signal lamp can also be fixedly mounted by the signal lamp fixing assembly 200.
The telescopic transverse fixing assemblies 201 are 2 in number, are symmetrically distributed relative to the disk-shaped universal fixing assembly 202, penetrate through and are fixed on the fork-shaped support 203, and are used for fixing a grille lamp or a tail penetrating lamp of an automobile signal lamp.
And a disk-shaped universal fixing assembly 202 which penetrates through and is fixed on the fork-shaped bracket 203 and is used for fixing a front automobile Logo lamp or a rear automobile Logo lamp of an automobile signal lamp.
The bottom of the telescopic transverse fixing assembly 201 and the disk-shaped universal fixing assembly 202 are supported by a limit nut 221, and the position of the limit nut 221 can be changed through the position of connection of the limit nut 221 and the external thread 222 of the fork-shaped support 203, so that the telescopic transverse fixing assembly and the disk-shaped universal fixing assembly are suitable for the conditions of different heights of automobile signal lamps of different models.
The fork-shaped support 203, 3 branch struts at the upper end, are respectively used for installing and fixing the telescopic transverse fixing assembly 201 and the disk-shaped universal fixing assembly 202. The surface of the branch post is provided with external threads 222 for connecting with a limit nut 221, and two sides of the branch post are cut to form planes, so that the telescopic transverse fixing assembly 201 and the disc-shaped universal fixing assembly 202 are locked by positioning a locking nut 214. The middle cylinder of the fork-shaped bracket 203 is provided with external threads 222 for connecting the rotary fixing sleeve 204. The fork-shaped support 203 is provided with a T-shaped structure 223 at the bottom for cooperating with the fixed sliding chute 205, and the fork-shaped support 203 can slide longitudinally in the fixed sliding chute 205.
And the rotating fixing sleeve 204 is rotationally connected with the middle cylinder of the fork-shaped support 203, and locks the longitudinal position of the fork-shaped support 203 relative to the fixed sliding groove 205 through the rotation of the rotating fixing sleeve 204, so as to adjust the horizontal longitudinal position of the signal lamp.
The fixed chute 205 is fixed on the steel ground 400 and determines the horizontal longitudinal motion track of the signal lamp fixing assembly 200. The fixed runner 205, together with the T-shaped structure 222 at the bottom of the fork 203, has a certain limiting effect, and when the fork 203 is adjusted to a proper position, the fixed sleeve 204 is rotated to lock the position.
As shown in fig. 13a and 13b, the telescopic lateral fixing assembly 201 includes a lateral fixing frame 209, a lateral movable core 210, a fixing buckle 211, an adjusting rubber pad 212, a reverse-threaded fixing bolt 213 and a positioning lock nut 214.
The telescopic transverse fixing assembly 201 is mainly used for fixing the grille lamp and the tail penetrating lamp, but because the mounting points may have different longitudinal clearances, the longitudinal mounting clearance problem is compensated by matching the reverse thread fixing bolt 213 with the adjusting rubber pad 212.
The main body of the transverse fixing frame 209 is in a long strip shape, the outer side of the transverse fixing frame is opened, a sliding groove is reserved inside the transverse fixing frame, and the sliding groove and the transverse moving core pulling 210 are in transition fit, so that the transverse moving core pulling 210 can transversely move in the transverse fixing frame 209, the condition that the transverse distance between the left grille lamp 206 and the right grille lamp 207 is too large is compensated, and the horizontal transverse position of the signal lamp is adjusted and determined. The transverse fixing frame 209, the rear part of which is a hollow cylinder structure, can be sleeved on the fork-shaped bracket 203 and locks the telescopic transverse fixing assembly 201 through a positioning locking nut 214, so as to adjust and determine the vertical height position of the signal lamp. Alternatively, the hollow cylindrical structure may be welded to the transverse fixing frame 209.
And the fixed buckle 210 is clamped on the transverse movable loose core 210 and the transverse fixed frame 209, and provides a mounting plane for the reverse-thread fixed bolt 213. Since the transverse moving loose core 210 is inserted into the transverse fixing frame 209, the two are different in vertical height, and two fixing buckles 211 with different heights are matched for being clamped between the transverse moving loose core 210 and the transverse fixing frame 209.
Fig. 12c shows a cross-sectional view of a longitudinal fixing gap adjustment mode of a signal lamp according to an embodiment of the present invention, and it can be seen from the cross-section shown in fig. 12c that a cylindrical boss structure protrudes from the rear of the fixing clip 211 and is provided with a threaded hole for connecting the fixing bolt 213 with a reverse thread.
The reverse-threaded fixing bolt 213 has a threaded hole at its head for receiving the grille lamp fixing screw 215. When the fixing bolt 213 is rotated clockwise to screw in the fixing buckle 211, the grille lamp fixing screw 215 is in a state of being screwed out of the fixing bolt 213, so that the difference of the longitudinal gap during the installation of the grille lamp fixing screw 215 can be compensated, but when the gap is too large, the adjusting rubber pad 212 needs to be added for gap compensation.
The disc-shaped universal fixing assembly 202 is mainly used for fixing Logo lamps at the front and the rear of an automobile, and an automobile signal lamp is fixed according to the actual loading position. Fig. 15a is a cross-sectional view taken along section a-a of fig. 15b, and as shown in fig. 14 a-15 b, a disk-shaped gimbal mounting assembly 202 includes an automotive Logo lamp 208, a Logo lamp support 216, a ball stud 217, a ball stud 218, a locking nut 219, a vertical mounting bracket 220, and a retaining locking nut 214.
The Logo lamp holder 216, which has three legs, is fixed to the automobile Logo lamp 208 by a round nut 224. The Logo lamp support 216 is provided with a cylindrical table on the back, and a spherical surface in the middle for fixing with the ball head surface of the ball head support rod 217. Because the Logo lamp 208 may be arranged at a certain angle with the horizontal plane, the Logo lamp support 216 and the ball bearing rod 217 can realize three-degree-of-freedom multidirectional rotation, and the fixing requirement of the automobile Logo lamp 208 is met.
The ball bearing 217, one end of which is a ball, is connected with the ball locking sleeve 218, and the position of the ball is fixed by rotating the ball locking sleeve 218. And the ball head locking sleeve 218 is fixed by rotation and is connected with the Logo lamp bracket 216 and the ball head support rod 217. Bulb branch 217, the other end is the straight-bar, and the straight-bar end is fixed on vertical fixed bracket 220 through lock nut 219, can carry out fore-and-aft short distance between the two and remove, adjusts relative position.
The vertical fixing bracket 220 is of a ring-like structure in the middle and can penetrate through and be fixed on the fork-shaped support 203, the vertical height of the bottom end of the vertical fixing bracket is determined through the limiting nut 221, and the vertical fixing bracket is locked through the positioning locking nut 214, so that the vertical height position of the signal lamp is adjusted and determined.
And the positioning locking nut 214 is connected to the transverse fixing frame 209 and the vertical fixing bracket 220 and is used for locking the telescopic transverse fixing assembly 201 and the disc-shaped universal fixing assembly 202 and ensuring that the position of the vertical height is unchanged.
The processing ground of car lamps and lanterns grading performance test bench selects steel ground 400, and not cement pouring mainly guarantees that the plane degree on ground reaches the experimental requirement, avoids appearing the condition of cement ground unevenness. The test requires that the centers of the modules of the headlights on the left side and the headlights on the right side are kept on the same plane, and the ground flatness requirement error is within 5mm in the transverse view.
The fan-shaped light curtain 300, the functional lamp fixing assembly 100 and the signal lamp fixing assembly 200 are all fixed on a steel floor 400. Optionally, the fixing mode is bolt fixing.
The steel floor 400 occupies an area of 4m × 4 m. The middle of the steel ground 400 is provided with a rectangular groove, which is convenient for fixing the T-shaped slideway 151 and the worm bearing seat 154, and ensures the installation of the left lateral adjusting mechanism assembly 106 and the right lateral adjusting mechanism assembly 109 in the functional lamp fixing assembly 100.
The fan-shaped light curtain 300 is integrally in the shape of a semicircular fan, and the circle center position of the fan-shaped light curtain is located at the connecting line of the central points of the light distribution lenses of the lamps on the left side and the right side. In order to meet the requirement of the light distribution performance test of the automobile lamp, optionally, the radius of the inner circle of the fan-shaped light curtain 300 is 3.6m, and the height is 3 m. The bottom of the fan-shaped light curtain 300 is fixed on the steel ground 400, and optionally, the fixing mode is bolt fixing.
The fan-shaped light curtain 300 is internally provided with a light intensity sensor probe. The illuminance sensor is disc-shaped, and the illuminance sensor probe has small size and high precision, and is convenient to arrange on the fan-shaped light curtain 300.
The rear pin of the probe of the illuminance sensor is connected with a proportional amplifier, the proportional amplifier amplifies an output voltage signal of the illuminance sensor, then the output voltage signal is collected in real time through a data acquisition system, the illuminance of each position of the fan-shaped light screen 300 under the condition that the automobile lamp is turned on is converted through a corresponding curve of the output voltage stored in the illuminance sensor and the illuminance, and the illuminance is displayed and recorded on a liquid crystal screen of a computer.
Optionally, the optical sensor probe is NH203T, the outer ring diameter is 25mm, and the maximum thickness is 16 mm. Since the geometry of the NH203T illuminance sensor probe is too small relative to the fan-shaped light curtain 300, it is not shown in detail in the illustrated structure.
The telescopic dust cover of grey cloth 500 is for customizing the structure, and telescopic dust cover of grey cloth 500, both ends pass through the fix with screw on the shell and the steel ground 400 of the vertical adjustment mechanism assembly body 105 of the left side of the fixed assembly body 100 of function lamps and lanterns, the vertical adjustment mechanism assembly body 108 in right side, at vertical adjustment mechanism assembly body lateral shifting in-process, the telescopic dust cover of grey cloth 500 at both ends can play the effect of dust seal.
Optionally, the standard dust cloth telescopic dust cover structure with the length of 2 meters is selected for the dust cloth telescopic dust cover 500. The dust cloth telescopic dust cover 500 is used for shielding structures such as the transverse transmission worm 153, the worm bearing, the transverse laser ranging displacement sensor 133 and the like at the bottom on one hand, and preventing dust from entering to influence the control precision of the test bed; on the other hand, the dust cloth retractable dust cover 500 can be retracted in one direction, and the foldability of the dust cloth is utilized to ensure that the bottom structure has good sealing performance when the left lamp fixing assembly 101 and the right lamp fixing assembly 102 move in the transverse direction.
The automobile lamp test bench provided by the invention can test the actual lamplight performance and the road surface irradiation effect of the lamp sample piece under the condition of no sample vehicle.
The automobile lamp test bench realizes tests on the light distribution performance and the like of the automobile lamp through the test steps shown in fig. 16. Fig. 16 discloses a flow chart of an automobile lamp testing method of an automobile lamp testing stand according to an embodiment of the invention, and the flow chart of the automobile lamp testing method is as follows:
step S1, installing a functional lamp of the automobile, fixing the functional lamp through a functional lamp fixing assembly, and adjusting the vertical height position and the horizontal transverse position of the automobile functional lamp;
step S2, mounting a signal lamp of an automobile, fixing the signal lamp by an assembly body through a signal lamp fixing assembly, and adjusting the vertical height position, the horizontal longitudinal position and the horizontal transverse position of the signal lamp of the automobile;
step S3, starting the corresponding lamps, measuring and feeding back the illuminance data of each position to the data acquisition system through the illuminance sensor probe on the light curtain;
in step S4, a judgment is given against the illuminance standard.
The functional lamps comprise automobile headlights and automobile tail lights, and the signal lamps comprise front signal lamps and rear signal lamps. The front signal lamp includes a grille lamp and a Logo lamp. The rear signal lamp includes a rear penetration lamp and a rear Logo lamp.
Furthermore, in step S1, the position of the functional lamp is fixed by the vertical height adjusting support assembly and the horizontal height adjusting support assembly in the universal lamp fixing bracket assembly of the functional lamp fixing assembly. Furthermore, in step S1, the vertical height position of the automobile functional lamp is adjusted and determined by using the vertical adjusting mechanism assembly of the functional lamp fixing assembly in combination with the vertical displacement detection signal. Furthermore, in step S1, the horizontal position of the functional lamp of the vehicle is adjusted and determined by using the lateral adjustment mechanism assembly of the functional lamp fixing assembly in combination with the lateral displacement detection signal. Furthermore, in step S1, the longitudinal positioning of the automobile functional lamp is determined by aligning the longitudinal positioning reference scribe lines of the transverse height adjusting support assembly and the vertical height adjusting support assembly with the longitudinal positioning reference scribe lines of the lamp support base plate in the universal lamp fixing support assembly of the functional lamp fixing assembly.
Furthermore, in step S2, in the telescopic transverse fixing assembly of the signal lamp fixing assembly, the transverse fixing frame is matched with the fork-shaped bracket to adjust and determine the vertical height position of the grille lamp or the tail penetrating lamp of the signal lamp; in a disk-shaped universal fixing assembly utilizing the signal lamp fixing assembly, a vertical fixing frame is matched with a fork-shaped support to adjust and determine the vertical height position of a front marker lamp or a rear marker lamp of a signal lamp. Furthermore, in step S2, the fixed chute of the assembly body of the signal lamp fixing assembly is used to cooperate with the T-shaped structure at the bottom of the fork-shaped bracket, so as to determine the horizontal longitudinal movement track of the assembly body of the signal lamp fixing assembly, and the longitudinal position of the fork-shaped bracket relative to the fixed chute is locked by the rotation of the rotating fixing sleeve, so as to adjust the horizontal longitudinal position of the signal lamp. Further, in step S2, the horizontal transverse position of the signal lamp is adjusted and determined by the horizontal fixing frame cooperating with the transversely moving core pulling in the telescopic transverse fixing assembly of the signal lamp fixing assembly.
The following further describes an automobile lamp test method corresponding to the automobile lamp test bench provided by the invention by taking an automobile front lamp and an automobile rear lamp as examples.
When the automobile lamp test bench is provided with an automobile front lamp, namely the functional lamp is an automobile headlamp, and the signal lamp is an automobile grille lamp and an automobile Logo lamp, the specific flow of the automobile lamp test method is as follows:
s201, mounting left and right headlights of an automobile, and ensuring that the longitudinal positioning of the automobile headlights is accurate by utilizing a reference reticle alignment mode through fixing positions of a vertical height adjusting support assembly 111 and a transverse height adjusting support assembly 112 in a universal lamp fixing support assembly;
s202, controlling the stepping motor 145 by utilizing the vertical adjusting mechanism assembly body and determining the installation height of the headlamp of the automobile by combining signals of the magnetostrictive displacement sensor 138 to ensure that the installation heights of the left headlamp and the right headlamp of the automobile are consistent with an actual loading state;
s203, adjusting the transverse distance between the left headlamp and the right headlamp to reach a specified position by utilizing a transverse adjusting mechanism assembly and a transverse laser ranging displacement sensor 133;
s204, installing a Logo lamp and a grille lamp through the signal lamp fixing assembly 200, and adjusting to a specified position;
s205, according to the test requirements of the light performance of the lamps at the front of the automobile, the corresponding lamps are started, the illuminance data of each position is measured in real time and fed back to the data acquisition system through the illuminance sensor probe on the fan-shaped light curtain 300, and then the illuminance standard is compared by computer software to give judgment.
When the automobile lamp test bench is provided with an automobile rear lamp, namely the functional lamp is an automobile tail lamp, and the signal lamp is a tail penetration lamp and a tail Logo lamp, the automobile lamp test method comprises the following steps:
s301, mounting left and right tail lamps of the automobile, and ensuring the vertical positioning accuracy of the tail lamp of the automobile by using a reference reticle alignment mode through fixing positions of a vertical height adjusting support assembly 111 and a transverse height adjusting support assembly 112 in the universal lamp fixing support assembly;
s302, controlling the stepping motor 145 by using the vertical adjusting mechanism assembly body and determining the mounting height of the automobile tail lamp by combining signals of the magnetostrictive displacement sensor 138 to ensure that the mounting heights of the left and right automobile tail lamps are consistent with the actual loading state;
s303, adjusting the transverse distance between the left tail lamp and the right tail lamp to reach a specified position by utilizing a transverse adjusting mechanism assembly body and a transverse laser ranging displacement sensor 133;
s304, mounting a rear Logo lamp and a tail penetrating lamp through the signal lamp fixing assembly 200, and adjusting to a specified position;
s305, according to the light performance test requirements of the lamps at the rear of the automobile, starting the corresponding lamps, measuring and feeding back the light data of each position to a data acquisition system in real time through the light intensity sensor probe on the fan-shaped light curtain 300, and comparing the light intensity standard by using computer software to give judgment.
According to the automobile lamp test bench and the test method provided by the invention, in the development process of the automobile lamp, the combination of the grille lamp, the Logo lamp and the front lamp and the adjustable test bench of the tail lamp and the tail penetrating lamp are provided, so that the automobile lamp front part and the rear part lamps of different models and sizes can be matched, under the condition of no test vehicle, the automobile lamp is adjusted and fixed on a correct position according to the requirement of 3D design data, the design state of the automobile lamp is simulated to the maximum extent, whether the light distribution performance and the like of the automobile lamp meet the design requirement or not is detected, and the automobile lamp test bench and the test method are rich in functions, short in test period, high in precision and convenient and fast.
While, for purposes of simplicity of explanation, the methodologies are shown and described as a series of acts, it is to be understood and appreciated that the methodologies are not limited by the order of acts, as some acts may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, as would be understood by one skilled in the art.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
The embodiments described above are provided to enable persons skilled in the art to make or use the invention and that modifications or variations can be made to the embodiments described above by persons skilled in the art without departing from the inventive concept of the present invention, so that the scope of protection of the present invention is not limited by the embodiments described above but should be accorded the widest scope consistent with the innovative features set forth in the claims.

Claims (16)

1. The utility model provides an automobile lamp test bench, its characterized in that, includes the light curtain, processes ground, the fixed assembly body of function lamps and lanterns, the fixed assembly body of signal lamp and the telescopic dust cover of grey cloth:
the processing ground is a flat plane;
the light curtain is fixedly arranged on the processing ground, and a light intensity sensor probe is arranged on the inner surface of the light curtain for collecting light output quantity of each position of the automobile lamp in a starting state and outputting light intensity;
the functional lamp fixing assembly body is fixedly arranged on the processing ground and used for installing a functional lamp and adjusting the vertical height position and the horizontal transverse position of the functional lamp;
the signal lamp fixing assembly body is fixedly arranged on the processing ground and used for installing a signal lamp and adjusting the vertical height position, the horizontal longitudinal position and the horizontal transverse position of the signal lamp;
the dust cloth telescopic dust cover is arranged between the functional lamp fixing assembly body and the processing ground, and seals the bottom of the functional lamp fixing assembly body.
2. The automotive lamp test stand of claim 1, wherein the functional lamp mounting assembly comprises a functional lamp mounting assembly and a drive motor:
the number of the functional lamp fixing assemblies is 2, the functional lamp fixing assemblies are divided into a left lamp fixing assembly and a right lamp fixing assembly, and the left lamp fixing assembly and the right lamp fixing assembly are symmetrically distributed on two sides of the driving motor;
and the driving motor provides power for adjusting the horizontal transverse position between the left lamp fixing assembly and the right lamp fixing assembly.
Function lamps and lanterns fixed assembly, including omnipotent lamps and lanterns fixed bolster assembly body, vertical adjustment mechanism assembly body and horizontal adjustment mechanism assembly body:
the lower end of the universal lamp fixing support assembly is connected with the vertical adjusting mechanism assembly, and the upper end of the universal lamp fixing support assembly is provided with a fixed functional lamp;
the upper end of the vertical adjusting mechanism assembly body is fixedly connected with the universal lamp fixing support assembly, and the lower end of the vertical adjusting mechanism assembly body is fixedly connected with the transverse adjusting mechanism assembly body, so that the vertical height position of the functional lamp is adjusted;
the lower end of the transverse adjusting mechanism assembly is fixedly connected with the processing ground, the upper end of the transverse adjusting mechanism assembly is connected with the vertical adjusting mechanism assembly, and the horizontal and transverse position of the functional lamp is adjusted.
3. The automotive lamp test stand of claim 2, wherein the universal lamp mounting bracket assembly comprises a vertical height adjustment support assembly, a lateral height adjustment support assembly and a lamp bracket base plate:
the upper end of the vertical height adjusting support assembly body is fixedly connected with the functional lamp, the lower end of the vertical height adjusting support assembly body is fixedly connected with the lamp bracket bottom plate, and a vertical small displacement gap of the functional lamp is adjusted;
the upper end of the transverse height adjusting support assembly body is fixedly connected with the functional lamp, the lower end of the transverse height adjusting support assembly body is fixedly connected with the lamp bracket, and a small displacement gap between the vertical direction and the horizontal direction of the functional lamp is adjusted;
and the lower end of the lamp bracket bottom plate is connected with the vertical adjusting mechanism assembly.
4. The automotive lamp test stand of claim 3, wherein the vertical height adjusting support assembly of the universal lamp fixing support assembly comprises a disc-shaped electromagnet, a height adjusting support and a vertical height adjusting screw:
the disc-shaped electromagnet is fixedly connected with the height adjusting support, and generates magnetic force in a power-on mode to fix the height adjusting support on the lamp bracket bottom plate;
the upper end of the vertical height adjusting screw rod is fixed with the shell of the functional lamp, and the lower end of the vertical height adjusting screw rod is of a bolt structure;
the upper end of the height adjusting support is provided with an internal thread, the height adjusting support is connected with the lower end of the vertical height adjusting screw rod, and the vertical small displacement gap of the functional lamp is adjusted by rotating the vertical height adjusting screw rod.
5. The automotive lamp test stand of claim 3, wherein the transverse height adjusting support assembly of the universal lamp fixing support assembly comprises a disc-shaped electromagnet, a height adjusting support, a transverse height adjusting screw, a transverse displacement compensation plate locking screw and a transverse displacement compensation plate:
the disc-shaped electromagnet is fixedly connected with the height adjusting support, and generates magnetic force in a power-on mode to fix the height adjusting support on the lamp bracket bottom plate;
the middle of the head part of the upper end of the transverse height adjusting screw rod is provided with a rectangular groove, and the lower end of the transverse height adjusting screw rod is of a bolt structure;
the transverse displacement compensation plate is T-shaped in appearance, the narrow end of the transverse displacement compensation plate is inserted into the rectangular groove of the transverse height adjusting screw rod, the narrow end of the transverse displacement compensation plate is provided with a hole, the wide end of the transverse displacement compensation plate is provided with a vertical long groove, and the horizontal transverse small displacement gap of the functional lamp is adjusted;
the transverse displacement compensation plate locking screw penetrates through the upper end head of the transverse height adjusting screw rod and the transverse displacement compensation plate to fix the transverse displacement compensation plate and the transverse height adjusting screw rod;
the upper end of the height adjusting support is provided with an internal thread, the height adjusting support is connected with the lower end of the transverse height adjusting screw rod, and the vertical small displacement gap of the functional lamp is adjusted by rotating the transverse height adjusting screw rod.
6. The automotive lamp test bench of claim 2 wherein the universal lamp fixture mount assembly further comprises a lamp rectangular channel fixture assembly fixedly connected to the bottom rectangular channel of the functional lamp, the lamp rectangular channel fixture assembly comprising a square electromagnet, a height-adjustable ferrule, and a ferrule fixture mount:
the square electromagnet generates magnetic force in a power-on mode, and the inserting core fixing support is fixed on the lamp support bottom plate;
the insert core fixing bracket is fixedly connected with the square electromagnet, and the side surface of the insert core fixing bracket is provided with a king-shaped slot;
one end of the height-adjustable inserting core is rectangular and is fixedly connected with a rectangular groove at the bottom of the functional lamp, the other end of the height-adjustable inserting core is in a king shape, and the height-adjustable inserting core and the inserting groove of the inserting core fixing support are matched and fixedly installed in different channels, so that the vertical height position of the functional lamp is adjusted and controlled.
7. The automotive lamp test stand of claim 2, wherein the vertical adjustment mechanism assembly comprises a gear dust cover, a vertical adjustment mechanism assembly housing, a vertical adjustment mechanism assembly upper cover plate, a vertical adjustment mechanism assembly lower cover plate, a linear lifting assembly, and a vertical transmission assembly:
the gear dust cover is fixed on the upper cover plate of the vertical adjusting mechanism assembly and covers part of the structure of the vertical transmission assembly exposed out of the upper cover plate of the vertical adjusting mechanism assembly;
the vertical adjusting mechanism assembly shell is sleeved outside the upper cover plate of the vertical adjusting mechanism assembly and the lower cover plate of the vertical adjusting mechanism assembly and is fixedly connected with the upper cover plate of the vertical adjusting mechanism assembly and the lower cover plate of the vertical adjusting mechanism assembly;
the linear lifting assembly is connected with the universal lamp fixing support assembly and the vertical transmission assembly, controls the vertical lifting of the universal lamp fixing support assembly and adjusts the vertical height position of the functional lamp;
the vertical transmission assembly is fixedly arranged on the upper cover plate of the vertical adjusting mechanism assembly and the lower cover plate of the vertical adjusting mechanism assembly and connected with the linear lifting assembly to provide power for vertical lifting of the linear lifting assembly.
8. The automotive lamp test bench of claim 7 wherein the linear lift assembly of the vertical adjustment mechanism assembly comprises a linear lift tappet, a tappet guide sleeve, a slide rod guide sleeve, a linear lift platform, and a lamp base plate support flange:
the outer side surface of the lower end of the linear lifting tappet is connected with the linear lifting platform, and the upper end of the linear lifting tappet penetrates through a tappet guide sleeve and is connected with a lamp bottom plate supporting flange;
the tappet guide sleeve is fixedly arranged on an upper cover plate of the vertical adjusting mechanism assembly;
the linear lifting platform is used for receiving the acting force of the vertical transmission assembly to move up and down;
the sliding rod penetrates through the sliding rod guide sleeve, the upper end of the sliding rod is connected with the upper cover plate of the vertical adjusting mechanism assembly, and the lower end of the sliding rod is connected with the lower cover plate of the vertical adjusting mechanism assembly;
the slide bar guide sleeve is fixedly arranged at the bottom corner of the linear lifting platform;
the lamp bottom plate supports the flange plate and is connected with the universal lamp fixing support assembly.
9. The automotive lamp test stand of claim 7, wherein the vertical drive assembly of the vertical adjustment mechanism assembly comprises a stepper motor, a vertical drive worm, a worm drive sleeve, a deep groove ball bearing, and a gear set:
the stepping motor provides power for the vertical lifting motion of the functional lamp;
the vertical transmission worm and the stepping motor are coupled and rotated through a gear set to transmit the power of the stepping motor;
the worm transmission sleeve is arranged at the central position of the linear lifting platform and converts the rotation of the vertical transmission worm into the vertical lifting motion of the linear lifting platform;
the deep groove ball bearings are arranged at two ends of the vertical transmission worm, so that the vertical transmission worm rotates around the axis of the vertical transmission worm.
10. The automotive lamp test stand of claim 2, wherein the lateral adjustment mechanism assembly comprises a T-shaped rail, a slider, a lateral drive worm, and a worm drive mount:
the T-shaped track is fixed on the processing ground and is matched with the sliding block to determine the horizontal transverse movement track of the functional lamp fixing assembly;
the upper end of the sliding block is fixed with the bottom of the lower cover plate of the vertical adjusting mechanism assembly;
two ends of the transverse transmission worm are provided with worm bearings, and the worm bearings are fixed on the processing ground through worm bearing seats;
one end of the transverse transmission worm is fixedly provided with a transmission bevel gear, and the transverse transmission worm rotates around the axis of the transverse transmission worm to transmit the power of the driving motor;
the upper end of the worm transmission support is fixed with the bottom of the lower cover plate of the vertical adjusting mechanism assembly, the middle part of the worm transmission support is provided with a through hole, and the worm transmission support penetrates through the transverse transmission worm to convert the rotation of the transverse transmission worm into horizontal and transverse relative motion of the vertical adjusting mechanism assembly.
11. The automotive lamp test rig of claim 1, wherein the signal lamp mounting assembly includes a telescoping lateral mounting assembly, a disk-shaped universal mounting assembly, a wishbone mount, a rotating mounting sleeve, and a mounting chute:
the number of the telescopic transverse fixing assemblies is 2, the telescopic transverse fixing assemblies are symmetrically distributed relative to the disk-shaped universal fixing assemblies, penetrate through and are fixed on the fork-shaped support and are used for fixing a grille lamp or a tail penetrating lamp of an automobile signal lamp;
the disc-shaped universal fixing assembly penetrates through and is fixed on the fork-shaped support and used for fixing a front marker lamp or a rear marker lamp of an automobile signal lamp;
the upper end of the fork-shaped support is provided with 3 branch struts which are respectively used for installing and fixing the telescopic transverse fixing assembly and the disc-shaped universal fixing assembly;
the rotary fixing sleeve is rotationally connected with the cylinder in the middle of the fork-shaped support, the longitudinal position of the fork-shaped support relative to the fixed sliding chute is locked through the rotation of the rotary fixing sleeve, and the horizontal longitudinal position of the signal lamp is adjusted;
the fixed sliding groove is fixed on the processing ground and matched with the T-shaped structure at the bottom of the fork-shaped support to determine the horizontal longitudinal movement track of the signal lamp fixing assembly body.
12. The automotive lamp test stand of claim 11, wherein the telescopic transverse fixing assembly of the signal lamp fixing assembly comprises a transverse fixing frame, a transverse moving core, a fixing buckle, an adjusting rubber pad and a reverse-thread fixing bolt:
the transverse fixed frame is strip-shaped in main body, the outer side of the transverse fixed frame is open, a sliding groove is formed in the transverse fixed frame, the transverse movable loose core is matched with the transverse movable loose core through the sliding groove, the transverse movable loose core transversely moves on the transverse fixed frame, and the horizontal transverse position of the signal lamp is adjusted and determined;
the rear part of the transverse fixed frame is of a hollow cylinder structure, penetrates through and is fixed on the fork-shaped support, and the vertical height position of the signal lamp is adjusted and determined;
the fixing buckle is clamped on the transverse movable loose core and the transverse fixing frame to provide an installation plane of the reverse-thread fixing bolt;
the head of the reverse-thread fixing bolt is provided with a threaded hole which is fixedly connected with a signal lamp;
the adjusting rubber pad adjusts the installation clearance of the signal lamp.
13. The automotive lamp test stand of claim 11, wherein the disk-shaped universal mounting assembly of the signal lamp mounting assembly comprises a marker lamp support, a ball bearing rod, a ball locking sleeve and a vertical mounting bracket:
the marker light bracket is fixedly connected with a front marker light or a rear marker light of the automobile;
one end of the ball head support rod is a ball head and is connected with the ball head locking sleeve, the position of the ball head is fixed through the ball head locking sleeve, and the other end of the ball head support rod is a straight rod and is fixedly connected with the vertical fixing bracket;
the ball head locking sleeve is fixed through rotation and is connected with the marker light bracket and the ball head support rod;
the middle of the vertical fixing bracket is of an annular structure, penetrates through and is fixed on the fork-shaped support, and the vertical height position of the signal lamp is adjusted and determined.
14. An automotive lamp testing method using the automotive lamp testing stand according to any one of claims 1 to 13, characterized by comprising the steps of:
installing a functional lamp of an automobile, fixing the functional lamp through a functional lamp fixing assembly, and adjusting the vertical height position and the horizontal transverse position of the automobile functional lamp;
mounting a signal lamp of an automobile, fixing the signal lamp through a signal lamp fixing assembly, and adjusting the vertical height position, the horizontal longitudinal position and the horizontal transverse position of the signal lamp of the automobile;
starting a corresponding lamp, measuring and feeding back the illuminance data of each position to the data acquisition system through an illuminance sensor probe on the light curtain;
the evaluation is given against the illuminance standard.
15. The automotive lamp testing method of claim 14, wherein:
fixing the functional lamp through the functional lamp fixing assembly, and further fixing the position of the functional lamp by utilizing the vertical height adjusting support assembly and the transverse height adjusting support assembly in a universal lamp fixing support assembly of the functional lamp fixing assembly;
the step of adjusting the vertical height position of the automobile functional lamp further comprises the step of adjusting and determining the vertical height position of the automobile functional lamp by utilizing a vertical adjusting mechanism assembly of a functional lamp fixing assembly in combination with a vertical displacement detection signal;
and adjusting the horizontal transverse position of the automobile functional lamp, further comprising utilizing a transverse adjusting mechanism assembly of the functional lamp fixing assembly to adjust and determine the horizontal transverse position of the automobile functional lamp by combining a transverse displacement detection signal.
16. The automotive lamp testing method of claim 14, wherein:
adjusting the vertical height position of the automobile signal lamp, further comprising the steps of utilizing a telescopic transverse fixing assembly of a signal lamp fixing assembly body to match a fork-shaped support and adjust and determine the vertical height position of a grille lamp or a tail penetrating lamp of the signal lamp, and utilizing a disc-shaped universal fixing assembly of the signal lamp fixing assembly body to match the vertical fixing frame with the fork-shaped support and adjust and determine the vertical height position of a front marker lamp or a rear marker lamp of the signal lamp;
the step of adjusting the horizontal longitudinal position of the automobile signal lamp further comprises the steps of determining the horizontal longitudinal movement track of the signal lamp fixing assembly body by utilizing the fixed chute of the signal lamp fixing assembly body to be matched with the T-shaped structure at the bottom of the forked support, locking the longitudinal position of the forked support relative to the fixed chute through the rotation of the rotary fixed sleeve, and adjusting the horizontal longitudinal position of the signal lamp;
the method comprises the following steps of adjusting the horizontal transverse position of the automobile signal lamp, and further comprises the step of adjusting and determining the horizontal transverse position of the signal lamp by utilizing a transverse fixing frame to be matched with a transverse moving core-pulling in a telescopic transverse fixing assembly of a signal lamp fixing assembly.
CN201911299302.2A 2019-12-17 2019-12-17 Automobile lamp test bench and method Active CN110940533B (en)

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