CN219064819U - Car light vibration test device - Google Patents

Abstract

The utility model discloses a car lamp vibration test device which comprises a base, wherein a test bed, a cam mechanism and a car lamp jig are arranged on the base, the output end of the cam mechanism is in contact with the test bed, the test bed is connected with the car lamp jig, a supporting mechanism is further arranged on the base and comprises a supporting seat and a first supporting component, the supporting seat is positioned below the car lamp jig, the supporting seat is in butt joint with one end of the test bed, and the first supporting component is in elastic connection with one end, far away from the car lamp jig, of the test bed. The test bed provided by the utility model has the advantages that the enough supporting effect is obtained from the supporting seat and the first supporting component, so that the cam mechanism is contacted with the test bed when the test bed is not lifted, but no force is generated by the cam mechanism and the test bed, the output end of the cam mechanism is protected, and the service life of the cam mechanism is prolonged.

Description

Car light vibration test device

Technical Field

The utility model belongs to the technical field of vibration test, and particularly relates to a vehicle lamp vibration test device.

Background

After the automobile lamp is manufactured, a series of conventional detection needs to be carried out on the automobile lamp, such as a damp-heat test, a vibration test and the like, and the automobile lamp is finally damaged due to the fact that the automobile lamp is affected by vibration of various aspects of automobile running road conditions, engine cabins and the like in actual use.

Thus, the lamp vibration tester was used to evaluate the resistance to random vibration of the lamp. The mechanical vibration test bed is widely applied due to the advantages of small interference, simple control and the like during the test, but has the problems of large volume, complex operation and the like.

The Chinese patent application No. CN201310557266.1 discloses a three-way vibration testing machine based on a cam mechanism, wherein the cam mechanism moves according to a certain track under the driving and control of a speed regulating motor and drives three followers to synchronously move according to the cam track, and the three-way vibration testing machine has the advantages of simple structure, stable vibration track, small volume and convenient installation, maintenance and use.

However, with a vibration testing apparatus having a vertical vibration direction, the output end of the cam mechanism supports a platform on which the lamp is mounted, and the output end of the cam mechanism is always pressed by the gravity of the platform and the lamp, and the output end of the cam mechanism is easily damaged.

Disclosure of Invention

The utility model aims to provide a vehicle lamp vibration test device, which has the advantages that a test bed obtains enough supporting effect from a supporting seat and a first supporting component, so that when the test bed is not lifted by a cam mechanism, the cam mechanism is contacted with the test bed, but the cam mechanism and the test bed do not generate force, the output end of the cam mechanism is protected, and the service life of the cam mechanism is prolonged.

The technical scheme adopted for solving the technical problems is as follows:

the utility model discloses a vehicle lamp vibration test device which comprises a base, wherein a test bed, a cam mechanism and a vehicle lamp jig are arranged on the base, the output end of the cam mechanism is in contact with the test bed, the test bed is connected with the vehicle lamp jig, a supporting mechanism is further arranged on the base and comprises a supporting seat and a first supporting component, the supporting seat is positioned below the vehicle lamp jig, the supporting seat is in butt joint with and supports one end of the test bed, and the first supporting component is in elastic connection with one end, far away from the vehicle lamp jig, of the test bed.

The utility model has at least the following beneficial effects: aiming at the vibration test in the vertical direction, the test bed contacts with the output end of the cam mechanism, but the gravity action of the test bed and structures such as a car lamp fixture and the like arranged on the test bed is supported by the supporting seats and the first supporting components at the two ends of the test bed, and the test bed does not exert force on the cam mechanism; the output end of the cam mechanism is only in upward butt joint with the test bed when the cam mechanism rotates to lift the test bed, and the cam mechanism bears the gravity action of the structures such as the test bed, the lamp fixture and the lamp and drives the test bed to vibrate in the vertical direction. The device can reduce the extrusion time born by the output end of the cam mechanism, protect the output end of the cam mechanism, prolong the service life of the cam mechanism, reduce the replacement times and replacement cost of the output end of the cam mechanism, and further improve the test efficiency of the vehicle lamp vibration test device.

The supporting seat and the first supporting component are connected with the test bed to provide support for the test bed, and the output end of the cam mechanism is not affected to lift the test bed.

As a further improvement of the technical scheme, the first supporting component comprises a fixing frame, a first connecting piece and a fixing spring, wherein the fixing frame is fixedly connected with the base, the test bed is far away from one end fixedly connected with a connecting bearing of the car lamp jig, the connecting bearing is penetrated by the first connecting piece, the upper end and the lower end of the first connecting piece are respectively connected with the fixing frame and the base, the fixing spring is sleeved on the first connecting piece, and the fixing spring is connected with the test bed.

The fixing frame and the base fix the upper end and the lower end of the first connecting piece, the first connecting piece guides the up-and-down reciprocating motion of the test bed, and the connecting bearing on the test bed can slide up and down along the first connecting piece to prevent the test bed from shifting in the reciprocating motion process; the fixed spring is connected with the supporting test bed to prevent the test bed at the end from directly sliding down along the first connecting piece excessively to cause the test bed to extrude the output shaft of the cam mechanism.

As a further improvement of the above technical solution, the first supporting component includes two fixing springs aligned up and down, two ends of the fixing spring above are respectively abutted to the fixing frame and the test stand, and two ends of the fixing spring below are respectively abutted to the test stand and the base.

The two fixing springs are respectively abutted against the upper side and the lower side of the test stand. When the output end of the cam mechanism lifts the test bed, the test bed slides upwards along the first connecting piece, the fixed spring positioned above is subjected to compression deformation along the upper and lower directions, the fixed spring positioned below is subjected to stretching deformation along the upper and lower directions, when the test bed falls back from the highest point, the upper and lower fixed springs are subjected to elastic deformation, and meanwhile the test bed is promoted to return to the original position, so that the test bed is ensured not to be in butt joint with the output end of the extrusion cam mechanism.

As a further improvement of the technical scheme, the supporting mechanism further comprises a second supporting component, the second supporting component is arranged close to the output end of the cam mechanism, the second supporting component comprises a reset spring and two second connecting pieces, two ends of the reset spring are respectively connected with the second connecting pieces, and the two second connecting pieces are respectively fixed on the test bed and the base in a penetrating mode.

When the output end of the cam mechanism drives the test bed to move upwards, the reset spring stretches and deforms, and when the test bed moves downwards, the deformation acting force of the reset spring close to the output end of the cam mechanism further pulls the test bed downwards, so that the test bed is always abutted with the output end of the cam mechanism until the test bed returns to the lowest position, contacts with the output end of the cam mechanism, and ensures that the amplitude of the test bed is the distance between the highest position and the lowest position of the test bed.

As a further improvement of the above technical solution, the second support assembly may be provided between the support base and the output end of the cam mechanism, and/or between the first support assembly and the output end of the cam mechanism. The mounting positions of the plurality of second support assemblies are provided, so that the second support assemblies are convenient to mount flexibly, and the second support assemblies are ensured to enable the test bed to be abutted or contacted with the output end of the cam mechanism.

As a further improvement of the technical scheme, the second connecting piece is a connecting bolt and a connecting nut, the head end and the tail end of the return spring are annular, one end of the return spring is sleeved at the screw rod of the connecting bolt, and the screw rod of the connecting bolt penetrates through the test bed or the base and is in threaded connection with the connecting nut.

The reset spring is movably connected with the second connecting piece in a sleeving manner, so that the reset spring can be conveniently and quickly installed and replaced, and a new reset spring can be replaced after the reset spring has no elasticity; in addition, the relative position of the screw rod and the connecting nut can be adjusted through the connecting bolt of the test bed, so that the stretching deformation quantity of the return spring is adjusted when the test bed moves upwards.

As a further improvement of the technical scheme, the upper end of the car lamp jig comprises a connecting platform, the connecting platform is horizontally arranged and connected with a clamp, the connecting platform is provided with a plurality of connecting through holes which are communicated up and down, and the clamp is connected with the connecting through holes through bolts.

The clamp is used for clamping and fixing the car lamp, so that the car lamp is prevented from colliding with the car lamp jig in the vibration process, and the accuracy of a test result is prevented from being influenced; the clamp passes through the connecting through holes of the clamp and the connecting platform through the structures such as bolts and the like, so that the clamp and the connecting platform are relatively fixed, and the clamps corresponding to the lamps at different positions can be arranged on the connecting platform; the connecting platform can be connected with a plurality of clamps, so that the test efficiency of the car lamp vibration test device is improved.

As a further improvement of the technical scheme, the connecting platform is provided with a fixing groove with an upward opening, the fixing groove is in a dovetail groove shape with a small upper end width and a large lower end width, the clamp is provided with a fixing protrusion matched with the fixing groove, and the clamp is connected with the connecting platform in a jogged mode.

Because the car lights at different positions are different in size, the corresponding clamp sizes are not consistent, two connecting through holes of part of the clamp are difficult to vertically correspond to the connecting through holes of the connecting platform, and the clamp is difficult to stably and stably fix on the connecting platform. Through the arrangement, the fixing protrusions of the clamp are embedded into the fixing grooves from the side edges of the car lamp jig, and the clamp can be stably installed on the connecting platform only by penetrating the connecting clamp and the connecting platform through one bolt.

As a further improvement of the technical scheme, the cam mechanism comprises a driving motor, a transmission assembly and a transmission shaft, the transmission assembly comprises a driving wheel, a driven wheel and a transmission belt, an output shaft of the driving motor is in transmission connection with the driving wheel, the transmission belt is sleeved on the driving wheel and the driven wheel, the driven wheel is in transmission connection with the transmission shaft, the transmission shaft extends along the front-back direction and is rotatably erected on the base, a cam is sleeved on the transmission shaft, and the cam is in rolling connection with the test bed.

When the driving motor is started, the transmission shaft is driven to rotate through the transmission assembly, the test bed reciprocates up and down along with the rotating cam, and vertical vibration is provided for the car lamp in the clamp.

As a further improvement of the technical scheme, a base is arranged below the base, and a buffer piece is arranged between the base and the base. The buffer piece is used for buffering and absorbing vibration on the base, so that the vibration is prevented from being transmitted to the ground or other equipment, and the ground or the equipment is prevented from being damaged.

Drawings

The utility model is further described below with reference to the drawings and examples;

fig. 1 is a schematic structural diagram of a vehicle lamp vibration test apparatus according to an embodiment of the present utility model.

The figures are marked as follows:

100. a base; 110. a base; 120. a buffer member; 200. a test bed; 210. connecting a bearing; 310. a driving motor; 321. a driving wheel; 322. driven wheel; 323. a drive belt; 324. a transmission shaft; 330. a transmission bracket; 400. a lamp fixture; 410. a connecting platform; 411. a fixing groove; 412. a connecting through hole; 420. a clamp; 500. a support mechanism; 510. a first support assembly; 511. a fixing frame; 512. a first connector; 513. a fixed spring; 520. a second support assembly; 521. a return spring; 522. a second connector; 600. a support base; 700. and a controller.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, if there is a word description such as "a plurality" or the like, the meaning of the plurality is one or more, the meaning of the plurality is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and above, below, within, etc. are understood to include the present number. The description of first, second, and third is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of technical features indicated.

In the drawing, the X direction points from the rear side to the front side of the vehicle lamp vibration test device; the Y direction is from the left side to the right side of the car lamp vibration test device; the Z direction is directed from the lower side to the upper side of the car lamp vibration test device.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, a vehicle lamp vibration test apparatus according to the present utility model is described below as a number of embodiments.

As shown in fig. 1, the vibration test device for the vehicle lamp in the embodiment of the utility model comprises a base 100, wherein a cam mechanism, a test stand 200 and a vehicle lamp jig 400 are arranged on the base 100, the output end of the cam mechanism is in butt joint or contact with the test stand 200, the test stand 200 is connected with the vehicle lamp jig 400, and when the cam mechanism is started, the output end drives the test stand 200 to vibrate, so that the vehicle lamp on the vehicle lamp jig 400 vibrates, and a vibration test is completed.

It can be understood that the base 100 is a square structure, the long end of the square base 100 is disposed along the left-right direction, the short end of the square base 100 is disposed along the front-rear direction, the upper end surface of the base 100 is horizontally disposed, and a plurality of through holes are disposed corresponding to the cam mechanism and other structures, so that the cam mechanism and the like can be conveniently mounted on the upper end surface of the base 100.

The cam mechanism provides vibration to the test stand 200. In this embodiment, the cam mechanism includes a drive motor 310, a drive assembly, and a drive shaft 324, as shown in FIG. 1.

The driving motor 310 provides a driving source, and since in the vibration test, whether the structure of the vehicle lamp is good under different vibration amplitudes and vibration frequencies needs to be tested, the driving motor 310 needs to precisely rotate, and meanwhile, since the driving motor 310 needs to drive the test stand 200, the vehicle lamp fixture 400 and the tested vehicle lamp, the load capacity of the driving motor 310 should be good.

In this embodiment, the driving motor 310 is a dc servo motor, which has low cost, simple structure, large starting torque, wide speed regulation range, and simple control, and can perform vibration tests on the vehicle lamp under different vibration frequencies and vibration amplitudes.

Further, the driving motor 310 is disposed at the right end of the base 100, the driving motor 310 includes an output shaft, and the output shaft of the driving motor 310 extends backward and is in transmission connection with the transmission assembly.

In this embodiment, the transmission assembly includes a driving wheel 321, a driven wheel 322 and a transmission belt 323, as shown in fig. 1, the driving wheel 321 is vertically fixed with an output shaft of the driving motor 310, the driven wheel 322 is fixedly connected with a transmission shaft 324, and the transmission belt 323 is sleeved on the peripheral walls of the driving wheel 321 and the driven wheel 322, so that when the driving motor 310 is started, the driving wheel 321 rotates around an axis extending forwards and backwards, and the driven wheel 322 is driven to rotate by the transmission belt 323.

Further, the driving wheel 321 and the output shaft of the driving motor 310 are coaxially arranged, the driven wheel 322 and the transmission shaft 324 are coaxially arranged, and the driving wheel 321 and the driven wheel 322 are positioned on the same vertical plane.

It will be appreciated that the transmission assembly corresponds to a decelerator. The transmission assembly is used to convert the high-speed rotation motion of the output shaft of the driving motor 310 into the low-speed rotation motion, and transmit the rotation power of the low-speed rotation to the transmission shaft 324 through the driven wheel 322. In this embodiment, the diameter of the driving wheel 321 is smaller than the diameter of the driven wheel 322.

The base 100 is provided with a transmission bracket 330, as shown in fig. 1, the transmission bracket 330 is used for supporting and protecting a transmission assembly, and preventing foreign matters from being blocked into the transmission belt 323 and the driving wheel 321 and/or the driven wheel 322 to influence the transmission effect. The bottom of the transmission bracket 330 is fixedly connected with the base 100 through bolts, the transmission bracket 330 is respectively connected with the driving wheel 321 and the driven wheel 322 in a rotating way, and it can be understood that the rotating way is realized by arranging bearings, so that the transmission bracket 330 can firmly support the driving wheel 321 and the driven wheel 322 without influencing the rotation of the driving wheel 321 and the driven wheel 322.

It can be understood that the transmission bracket 330 is a semicircular key shape at the left and right ends, the transmission bracket 330 is sleeved outside the transmission assembly, the front side and the inner side of the transmission belt 323 are limited and supported by the driving wheel 321 and the driven wheel 322, the rear side of the transmission belt 323 is limited by the transmission bracket 330, the transmission belt 323 is prevented from falling from the driving wheel 321 or the driven wheel 322, the transmission of rotation is affected, and meanwhile, the phenomenon that the clothes of a worker are wound into the transmission belt 323 and the normal work of the transmission assembly is affected can be avoided.

The base 100 is provided with a fixing bracket, the transmission shaft 324 is rotatably erected on the base 100 through the fixing bracket, the fixing bracket is fixed with a bearing through a bolt and a nut, and two ends of the transmission shaft 324 are respectively fixedly connected with the inner sides of the bearing, so that the transmission shaft 324 can obtain enough supporting effect from the fixing bracket.

It will be appreciated that the drive shaft 324 extends in a fore-aft direction with its aft end fixedly secured to the driven wheel 322, and thus the drive shaft 324 is rotatable about an axis extending fore-aft. The transmission shaft 324 is sleeved and fixed with a cam, and the cam is in rolling connection with the test stand 200 positioned above the transmission shaft 324.

In this embodiment, the cam is a circular eccentric wheel, the eccentric wheel is locked with the transmission shaft 324 in a clamping way, the eccentric wheel and the transmission shaft 324 can be quickly assembled and disassembled, eccentric wheels with different diameters and sizes are convenient to replace, and the amplitude of the vibration test is changed.

In some embodiments, the lower end of the test stand 200 is rotatably connected with a rolling member, the shaft end of the rolling member extends back and forth, the shaft end of the rolling member is located above the axis of the eccentric wheel, the circumferential wall surface of the eccentric wheel is in contact with the circumferential wall surface of the rolling member, and when the transmission shaft 324 drives the cam to rotate, the test stand 200 in contact with the cam performs up-and-down reciprocating motion, so as to provide vibration in the vertical direction for the vehicle lamp fixture 400.

It is understood that the rolling member may be one of a roller or a roller, and the rolling member is disposed adjacent to the lamp fixture 400.

Further, a limiting structure can be further arranged below the test stand 200, and corresponds to the eccentric wheel, so that the rolling piece and the eccentric wheel are always in a contact state, and the eccentric wheel is prevented from deviating.

It will be appreciated that in order to prevent the weight of the test stand 200 and the structure thereon from crushing the drive shaft 324 and cams, the base 100 is provided with a support mechanism 500.

In this embodiment, the lamp fixture 400 is connected to the left end of the test stand 200, and since the lamp fixture 400 is further provided with a lamp and a fixture 420 for fixing the lamp, the left end of the test stand 200 is required to bear a large gravity effect, the left end of the test stand 200 is easy to incline downward, and the right end of the test stand 200 is easy to incline upward.

Therefore, the supporting mechanism 500 includes the supporting seats 600 and the first supporting members 510 at the left and right ends of the test stand 200, and the left and right ends of the test stand 200 are balanced while supporting the test stand 200, thereby preventing the test stand 200 from being inclined to one side.

In this embodiment, as shown in fig. 1. The first support assembly 510 is elastically connected to one end of the test stand 200 far away from the lamp fixture 400, i.e. the first support assembly 510 is connected to the right end of the test stand 200, and the first support assembly 510 includes a fixing frame 511, a first connecting member 512 and a fixing spring 513.

The fixing frame 511 is fixedly connected with the base 100. More specifically, the bolts pass through the fixing frame 511 and the base 100, and the matched nuts are screwed under the base 100.

The test stand 200 is provided with a connecting hole extending up and down at a position corresponding to the first connecting piece 512, a connecting bearing 210 is arranged along the inner wall of the connecting hole, and the first connecting piece 512 is arranged in the connecting bearing 210 in a penetrating manner, so that the test stand 200 can slide up and down along the first connecting piece 512. In the present embodiment, the connection bearing 210 is a linear bearing. The upper and lower ends of the first connecting member 512 respectively pass through the fixing frame 511 and the base 100 and are screwed with the screw cap, so that the first connecting member 512 is firmly fixed between the fixing frame 511 and the base 100, and the first connecting member 512 is perpendicular to the base 100.

In this embodiment, the first connecting member 512 is a straight rod with a circular horizontal section. Each first connecting piece 512 is provided with two fixing springs 513 aligned up and down, and the two fixing springs 513 are respectively sleeved outside the first connecting pieces 512 between the test stand 200 and the fixing frame 511 and between the test stand 200 and the base 100.

Further, the fixing frame 511 may be provided with a plurality of first connectors 512, and the plurality of first connectors 512 may be disposed in parallel in the front-rear direction to strengthen and support the test stand 200. In the present embodiment, the fixing frame 511 is provided with two first connecting members 512.

It will be appreciated that the test stand 200 can slide up and down along the first connecting member 512, when the driving motor 310 is started and the cam rotates, the test stand 200 can be driven to reciprocate up and down, at this time, the first connecting member 512 provides a vertical guiding function for the test stand 200, the fixing spring 513 located above is abutted downwards to the test stand 200, the right end of the test stand 200 is prevented from tilting upwards, the fixing spring 513 located below is abutted upwards and supports the test stand 200, and the two fixing springs 513 act together, so that the test stand 200 moving upwards can be quickly moved downwards to the lowest position.

The below of car light tool 400 is equipped with supporting seat 600, and supporting seat 600 passes through the bolt, nut is fixed on base 100, and the test bench 200 is kept away from one side of car light tool 400 and supporting seat 600 butt setting, promptly the left downside of test bench 200 and the upper end of supporting seat 600 butt each other. It will be appreciated that when the test stand 200 is at the lowermost end in the reciprocating motion, the test stand 200 abuts against the support base 600, and the support base 600 supports the lamp fixture 400, the jig 420, the lamp, and a part of the gravity of the test stand 200.

In some embodiments, the abutment surface of the test stand 200 and the support base 600 is disposed horizontally, so as to ensure that the test stand 200 is in a horizontal state when the test stand 200 abuts against the support base 600.

In other embodiments, the upper end of the supporting seat 600 is provided with a limiting groove with an upward opening, the limiting groove extends along the front-back direction, the cross section of the limiting groove perpendicular to the extending direction is trapezoid with a big top and a small bottom, and correspondingly, the lower end of the test stand 200 is provided with a limiting protrusion matched with the limiting groove, so that when the test stand 200 moves downwards, the limiting protrusion is embedded into the limiting groove from top to bottom, and the up-down reciprocating motion of the test stand 200 is further guided, so that the test stand 200 is prevented from shifting in the reciprocating motion.

In this embodiment, the supporting mechanism 500 is further provided with a second supporting component 520, and as shown in fig. 1, the second supporting component 520 includes a return spring 521 and two second connecting members 522. The return spring 521 is vertically arranged, and the two second connecting pieces 522 are respectively penetrated and fixed on the test stand 200 and the base 100, and the upper and lower ends of the return spring 521 are respectively connected with the second connecting pieces 522.

In this embodiment, the second connecting piece 522 is a connecting bolt and a connecting nut that are cooperatively arranged, two ends of the return spring 521 are annular, the screw head of the connecting bolt faces the return spring 521, the screw rod of the connecting bolt passes through the upper end of the return spring 521 and the test stand 200 in turn upwards, and is in threaded connection with a connecting nut on the upper end surface of the test stand 200; the screw of the other connecting bolt passes through the lower end of the return spring 521 and the test stand 200 downwards, and is in threaded connection with the other connecting nut at the lower end surface of the test stand 200.

It will be appreciated that the coupling nut is a wing nut, which facilitates adjustment of the relative positions of the coupling bolt and the coupling nut to allow the resilient shape of the return spring 521 to change to conform to the reciprocating motion of the test stand 200. The return spring 521 is detachably connected with the connecting bolt, so that the aged return spring 521 can be replaced conveniently.

It will be appreciated that the second support assembly 520 is disposed adjacent the output end of the cam mechanism for more rapidly returning the test stand 200 to its original position by the elastic deformation of the return spring 521 as the test stand 200 is moved up.

In some embodiments, the second support assembly 520 may be disposed between the cam mechanism and the vehicle lamp fixture 400. In the present embodiment, the second support member 520 is disposed between the cam mechanism and the first support member 510.

The bottom of the lamp fixture 400 may be fixed to the upper end surface of the test stand 200 by means of screws, welding, or other connection means.

The upper end of the lamp fixture 400 includes a connection platform 410 for installing a fixture 420, as shown in fig. 1, the connection platform 410 is horizontally arranged, and the connection platform 410 is provided with a plurality of connection through holes 412 which are vertically conducted, so that the lamp vibration test device can test a plurality of lamps at a time, and the fixture 420 is fixedly arranged on the connection platform 410 in a penetrating manner through bolts and nuts matched with the diameters of the connection through holes 412, so that the fixture 420 is horizontally and firmly arranged on the connection platform 410.

Further, the connection platform 410 is provided with a fixing slot 411 with an upward opening, the fixing slot 411 has a small width at an upper end and a large width at a lower end perpendicular to the extending direction, and the fixing slot 411 is in a dovetail shape. Correspondingly, one side of the clamp 420 is provided with a fixing protrusion matching the shape of the fixing slot 411. During installation, the fixing protrusions of the clamp 420 are embedded into the fixing slots 411 and then are penetrated and fixed by bolts and nuts, so that the connection between the clamp 420 and the connection platform 410 is further stabilized.

In some embodiments, the fixing slot 411 may extend in the left-right direction. In the present embodiment, the fixing slot 411 extends in the front-rear direction. The connection platform 410 is provided with two fixing slots 411.

The base 110 is arranged below the base 100, as shown in fig. 1, the base 110 supports the base 100 and the structure on the base 100, the upper end of the base 110 is fixedly connected with the lower end of the base 100, and the lower end of the base 110 is fixedly connected with the ground.

In some embodiments, the base 110 and the base 100 penetrate the base 100 and the base 110 through vertically arranged bolts and are locked with nuts in a matched manner, so that the base 110 and the base 100 are fixedly connected. The base 100 may also be directly welded to the base 110 to make the connection between the two more secure.

It can be appreciated that when the test stand 200 moves downward, since the support base 600 supports the test stand 200 moving downward and the lamp fixture 400 and the fixture 420 disposed on the test stand 200, the test stand 200 collides with the support base 600, and the driving motor 310 disposed above the base 100 also vibrates during operation, so that the base 100 vibrates, and vibration is easily transmitted from the base 100 to the base 110 due to the fixed connection between the base 100 and the base 110, which affects the firmness of connection between the base 110 and the ground, and the connection between nearby devices.

In contrast, in the present embodiment, the buffer member 120 is disposed between the base 110 and the base 100. The buffer 120 plays a role of buffering, absorbing vibration at the base 100, and preventing the base 100 from transmitting the vibration to the belt housing 110.

It is understood that the buffer 120 may be one of a rubber ball, a damper spring, and a rubber damper.

In this embodiment, the buffer member 120 is a cylindrical rubber damper, the rubber damper is provided with a shaft rod along the axial direction of the rubber damper, two ends of the shaft rod extending out of the rubber damper are provided with buffer threads, the base 100 and the base 110 are provided with buffer through holes corresponding to the diameter of the shaft rod, the buffer through holes extend along the up-down direction, the shaft rods at the upper end and the lower end of the rubber damper pass through the base 100 and the base 110 through the buffer through holes and are locked by buffer nut threads matched with the buffer threads, so that the base 100 and the base 110 are fixedly connected, and meanwhile, the radial end faces at the upper side and the lower side of the rubber damper are respectively abutted against the base 100 and the base 110 for buffering and damping.

It will be appreciated that a plurality of rubber dampers are provided, circumferentially disposed along the edges of the base 100 and the housing 110. In this embodiment, there are six rubber dampers, three in parallel along the long end of the base 100, and two in parallel along the short end of the base 100, so that the base 100 can obtain sufficient cushioning and supporting effects from the rubber dampers, as shown in fig. 1.

Further, the rubber shock absorber can also correspond to the middle part of the base 100 up and down, providing good support for the base 100.

Further, a controller 700 is disposed on the base 100, the controller 700 is electrically connected with the driving motor 310, and a worker can control the driving motor 310 through the controller 700 to change the frequency of the vibration test.

While the preferred embodiments of the present utility model have been illustrated and described, the present utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by one skilled in the art without departing from the spirit of the present utility model, and these are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The utility model provides a car light vibration test device, includes the base, its characterized in that, be equipped with test bench, cam mechanism and car light tool on the base, cam mechanism's output with the test bench contacts, the test bench with the car light tool is connected, still be equipped with supporting mechanism on the base, supporting mechanism is including supporting seat and first supporting component, the supporting seat is located the below of car light tool, the supporting seat butt supports the one end of test bench, first supporting component with the one end elastic connection of car light tool is kept away from to the test bench.

2. The vibration testing device of a vehicle lamp according to claim 1, wherein the first supporting component comprises a fixing frame, a first connecting piece and a fixing spring, the fixing frame is fixedly connected with the base, one end of the test stand, which is far away from the vehicle lamp jig, is fixedly connected with a connecting bearing, the connecting bearing is penetrated by the first connecting piece, the upper end and the lower end of the first connecting piece are respectively connected with the fixing frame and the base, the fixing spring is sleeved on the first connecting piece, and the fixing spring is connected with the test stand.

3. The vibration testing device of claim 2, wherein the first support assembly comprises two fixing springs aligned vertically, two ends of the fixing spring above are respectively abutted to the fixing frame and the test stand, and two ends of the fixing spring below are respectively abutted to the test stand and the base.

4. The vibration testing device of claim 3, wherein the supporting mechanism further comprises a second supporting component, the second supporting component is arranged close to the output end of the cam mechanism, the second supporting component comprises a return spring and two second connecting pieces, two ends of the return spring are respectively connected with the second connecting pieces, and the two second connecting pieces are respectively fixed on the test bed and the base in a penetrating manner.

5. The vehicle lamp vibration testing apparatus of claim 4, wherein the second support assembly is positionable between the support base and the output end of the cam mechanism and/or between the first support assembly and the output end of the cam mechanism.

6. The vibration testing device for vehicle lamp according to claim 5, wherein the second connecting member is a connecting bolt and a connecting nut, the head end and the tail end of the return spring are annular, one end of the return spring is sleeved at the screw of the connecting bolt, and the screw of the connecting bolt passes through the test stand or the base and is in threaded connection with the connecting nut.

7. The vibration test device for the vehicle lamp according to claim 1, wherein the upper end of the vehicle lamp fixture comprises a connecting platform, the connecting platform is horizontally arranged and connected with a clamp, the connecting platform is provided with a plurality of connecting through holes which are communicated up and down, and the clamp is connected with the connecting through holes through bolts.

8. The vibration testing device for vehicle lamp according to claim 7, wherein the connecting platform is provided with a fixing groove with an upward opening, the fixing groove is in a dovetail shape with a small upper end width and a large lower end width, the fixture is provided with a fixing protrusion matched with the fixing groove, and the fixture is connected with the connecting platform in a jogged manner.

9. The vibration test device for the car lamp according to claim 1, wherein the cam mechanism comprises a driving motor, a transmission assembly and a transmission shaft, the transmission assembly comprises a driving wheel, a driven wheel and a transmission belt, an output shaft of the driving motor is in transmission connection with the driving wheel, the transmission belt is sleeved on the driving wheel and the driven wheel, the driven wheel is in transmission connection with the transmission shaft, the transmission shaft extends along the front-back direction and is rotatably arranged on the base, the transmission shaft is sleeved with a cam, and the cam is in rolling connection with the test stand.

10. The vibration testing device of claim 9, wherein a base is provided below the base, and a buffer is provided between the base and the base.

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