CN207730453U - A kind of automobile instrument disc assembly abnormal sound detection device for assembly line - Google Patents
A kind of automobile instrument disc assembly abnormal sound detection device for assembly line Download PDFInfo
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- CN207730453U CN207730453U CN201721770189.8U CN201721770189U CN207730453U CN 207730453 U CN207730453 U CN 207730453U CN 201721770189 U CN201721770189 U CN 201721770189U CN 207730453 U CN207730453 U CN 207730453U
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- disc assembly
- sound detection
- automobile instrument
- vibration
- detection device
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Abstract
The utility model discloses a kind of automobile instrument disc assembly abnormal sound detection device for assembly line, include the conveyer belt transported for the tool fixture of bearing automobile instrument disc assembly, for the tool fixture, vibration machine, the jacking mechanism of the driving vibration machine vertical direction movement, for the closed acoustic case of sound detection；The equipment passes through digitlization means, it is accurate to measure automobile instrument disc assembly generated sound in the vibration values of each frequency, pass through the precise alignment of computer, it can find defective products, to achieve the purpose that detection screening, the equipment can be suitably used for modern plant flow line production, have higher and relatively stable efficiency.
Description
Technical field
The utility model is related to arrive testing equipment field, and in particular to arrive a kind of automobile instrument disc assembly for assembly line
Abnormal sound detection device.
Background technology
Fig. 1 shows that the structural schematic diagram of automobile instrument disc assembly, including instrument board bottom case 101, instrument 106, instrument refer to
Needle 105, circuit board 102, registration plate 103, panel cover 104.Ammeter, water-thermometer, hair are installed on traditional automobile instrument panel
One or more instrument physically such as motivation oil pressure gauge, fuel gauge, speedometer, engine speed indicator；Modern vapour
Vehicle is then added to display of a series of digital display device as meter reading；The various instrument and device that the above is mentioned are main
It is fixed on automobile instrument panel by fastening means such as adhesive bonding, screw reinforcings.In the process of moving, instrument board is or not automobile
Evitable to be vibrated by various frequencies, if instrument and device are fixed, insecure or stress is excessive when because resonating causes
It loosens, the significant troubles such as instrument collision can be caused, therefore, it is necessary to carry out vibration detection to instrument board in the production phase.
Currently, auto industry instrument panel vibrations test mainly by human ear judge instrument board vibrate when whether abnormal sound,
To judge whether instrument and device fasten, whether touched between each instrument and device.
Judging abnormal sound by human ear, there are many deficiencies：Abnormal sound judgment mode is subjective judgement, it is possible that judging
The situation of mistake, reinspection can increase workload；The sound of human ear catches to grab and be limited in scope, some should not human ear frequency reception range
Abnormal sound may be not easy to find；Manual work it is difficult to ensure that per subjob time it is identical, cause line tact disunity；Some
Unconspicuous fastening problems are not easy to check by ear detection, such as instrument board, some instrument fasten assembly not in place at certain
It resonates under one vibration frequency, if the vibration frequency is the frequency that running car often reaches on the way, long-term work can cause
Instrument and device loosen aggravation inside instrument disc assembly.
Therefore, it is necessary to one kind being suitable for flow line production, and the equipment that sound detection is accurate, sound detection frequency is wider carries out
The detection of automobile instrument disc assembly abnormal sound.
Utility model content
In order to overcome described problem, the utility model to provide a kind of automobile instrument disc assembly abnormal sound detection for assembly line
Equipment, the equipment can be by digitlization means, produced by accurate measurement automobile instrument disc assembly is in the vibration values of each frequency
Sound, pass through the precise alignment of computer, it is possible to find defective products, to achieve the purpose that detection screening, which can be applicable in
In modern plant flow line production, there is higher and relatively stable efficiency.
A kind of automobile instrument disc assembly abnormal sound detection device for assembly line provided by the utility model, including be used to hold
It carries the tool fixture of automobile instrument disc assembly, the conveyer belt for tool fixture transport, vibration machine, shake described in driving
Jacking mechanism, the closed acoustic case for sound detection of dynamic generator vertical direction movement；The conveyer belt conveys thereon
In tool fixture to the vibration machine, the jacking mechanism jacks up the vibration machine, and the tool fixture is pushed up
It rises in the acoustic case to above being arranged in.
The automobile instrument disc assembly include instrument panel shell and be fixed on one or one of the instrument panel shell with
On Meter Parts；The instrument panel shell is fixed in tool fixture.
The jacking mechanism includes pedestal, horizontally disposed top plate, guide post, the hydraulic cylinder being oriented to for vertical direction；Institute
It states cylinder body to be fixed on the pedestal, piston rod is connect with the top plate；The top plate is fixed in described guide post one end
On, the other end passes through the pedestal.
The vibration machine includes the control for controlling the vibration controller of vibration frequency, the amplification vibration controller
The power amplifier of signal processed, the shake table for generating vibration；
The shake table includes vibrating base and table top, the vibrating base by be distributed on apex angle four connecting rods with
The table top connection；
The vibrating base is installed on the top plate, is connect with power amplifier；Be equipped on the table top with it is described
The vibrating sensor of vibration controller connection；
The power amplifier is connect with the vibration controller.
The table top is magnechuck.
The acoustic case includes the open box-like casing of loudspeaker box in bottom surface, be attached to the casing of loudspeaker box inner wall sponge and with
The corresponding one or more microphone of metered quantity；The microphone fixed position is set to the tool fixture
It is jacked to closed sidetone case, the surface of the instrument position.
The microphone is connected to the computer for audio analysis outside the acoustic case.
On the position of the non-instrument installation of casing of loudspeaker box, between the acoustic chamber interior wall and top plate, it is filled with sponge.
The bottom surface open surface match profiles of the top plate profile and the acoustic case are closed, and the hydraulic cylinder jacks shake table
Afterwards, the top plate periphery is bonded with the acoustic chamber interior wall.
The utility model provides the automobile instrument disc assembly abnormal sound detection device for assembly line, which can pass through number
Word means, it is accurate to measure automobile instrument disc assembly generated sound in the vibration values of each frequency, pass through the essence of computer
Really compare, it is possible to find defective products, to achieve the purpose that detection screening, the equipment can be suitably used for the life of modern plant assembly line
Production has higher and relatively stable efficiency.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 shows the three-dimensional structure explosive view of instrument board；
Fig. 2 shows the automobile instrument disc assembly abnormal sound detection device graphics for assembly line of the present embodiment；
Fig. 3 shows the front view of the present embodiment jacking mechanism；
Fig. 4 shows the connection diagram of the present embodiment vibration machine；
Fig. 5 shows the shake table schematic diagram of the present embodiment；
Fig. 6 shows the automobile instrument disc assembly abnormal sound detection device half sectional view for assembly line of the present embodiment.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
Fig. 1 shows the three dimensional structure diagram of instrument board, and instrument board head cover 104 is fixed by snap with instrument board bottom case
On 101, the utility model embodiment is detected mainly for the instrument disc assembly for not installing instrument board head cover 104.
Embodiment one：
Fig. 2 shows the automobile instrument disc assembly abnormal sound detection device graphics for assembly line of the present embodiment.This reality
A kind of automobile instrument disc assembly abnormal sound detection device for assembly line is provided with new embodiment, including is used for bearing automobile instrument
The tool fixture 202 of dial plate assembly 207, the conveyer belt 201 for tool fixture transport, vibration machine 203, driving institute
Jacking mechanism 204, the closed acoustic case 205 for sound detection for stating the movement of vibration machine vertical direction.
The conveyer belt 201 of the utility model embodiment is drum-type conveyer belt, and tool fixture 202 is rectangular flat, tooling
Instrument disc assembly is fixed on jig 202.
Tool fixture 202 is delivered on vibration machine 203 by conveyer belt 201, and vibration hair is reached in tool fixture 202
Before raw device 203, the guide pad 206 by being arranged in both ends above roller is positioned.
After the tool fixture 202 is transported on vibration machine 203, jacking mechanism 204 jacks up tool fixture 202
To in closed sidetone case 205, acoustic process is executed.
Embodiment two：
Fig. 3 shows the front view of the present embodiment jacking mechanism.The jacking mechanism of jacking mechanism include pedestal 301,
Horizontally disposed top plate 303, guide post 302, the hydraulic cylinder 304 being oriented to for vertical direction；304 ontology of the hydraulic cylinder is fixed on
On the pedestal, piston rod is connect with the top plate 303；302 one end of the guide post is fixed on the top plate 303, the other end
Across the pedestal 301；In order to limit the height jacked up upwards, stop nut 305 has been added in the lower end of guide post 302；Due to
Pedestal 301 and top plate 303 are rectangle, and adjacent edge lengths are unequal, and in order to avoid generating mistake on direction when installation, four are led
The installation site of column 302 is asymmetric.
Embodiment three：
Fig. 4 shows the connection diagram of the present embodiment vibration machine.The vibration machine includes shaking for controlling
The vibration controller 401 of dynamic frequency, the power amplifier 402 of the control signal of the amplification vibration controller shake for generating
Dynamic vibration machine；The vibration controller 401 of the utility model embodiment practicality is computer；Due to vibration controller 401
It is installed on outside assembly line with power amplifier 402, therefore, does not draw in Fig. 1.
The vibration machine includes vibrating base 404 and table top 403, and the vibrating base 404 passes through distribution and apex angle
On four connecting rods 406 connect with the table top 403；
The vibrating base 404 is installed on the top plate, is connect with power amplifier；It is equipped on the table top and institute
State the vibrating sensor 405 of the connection of vibration controller 401；
The power amplifier 402 is connect with the vibration controller 401.
Fig. 5 shows the shake table schematic diagram of the present embodiment.Table top 403 is integrally connected with connecting rod 406, and connecting rod 406 gos deep into
In the air gap of vibrating base 404；Connecting rod 406, which stretches on one end in the air gap, is equipped with driving coil 501, between air
Gap surrounding is to have magnetic permanent magnet 502, and permanent magnet 502 generates fixed magnetic field 503；When the side for changing driving coil 501
Xiang Shi changes the direction of the power suffered by driving coil 501；When the current direction of driving coil 501 is with the change of certain frequency
When changing speed change, you can driving table top 403 generates the vibration of certain frequency.
Example IV：
When being vibrated in view of shake table, it may result in tool fixture and move on a vibration table, therefore, it is necessary to work
Dress jig is fixed.Fixed form used by the present embodiment is magnetic-type fixed form, and there are one electricity for the table top setting
The fixation and release of tool fixture may be implemented by controlling the power on/off of magnechuck 504 in magnetic-disc 504.
Embodiment five：
Fig. 6 shows the automobile instrument disc assembly abnormal sound detection device half sectional view for assembly line of the present embodiment；Institute
State acoustic case include the open box-like casing of loudspeaker box 600 in bottom surface, be attached to the casing of loudspeaker box inner wall sponge 601 and with it is described
The corresponding one or more microphone of metered quantity 602；It is controlled set on the tooling 602 fixed position of the microphone
Tool is jacked to closed sidetone case, the surface of the instrument position.
The microphone 602 is connected to the computer for audio analysis outside the acoustic case.
On the position of the non-instrument installation of casing of loudspeaker box, between the acoustic chamber interior wall and top plate, it is filled with sponge
601。
303 profile of the top plate and the bottom surface open surface match profiles of the casing of loudspeaker box 600 are closed, the hydraulic cylinder 304
After shake table is jacked, 303 periphery of the top plate is bonded with the acoustic chamber interior wall.
In actual motion, automobile instrument assembly 207 is initially secured in tool fixture 202, then with 202 quilt of tool fixture
In the transport of conveyer belt 201 to the table top 403 for the shake table for being located at 201 rear of conveyer belt, the magnechuck on vibration table surface 403
504 start, and tool fixture 202 is sucked；At this point, hydraulic cylinder 304 starts, shake table is integrally jacked up into acoustic case,
In, 303 periphery of top plate is bonded closed, one closed inner cavity of composition with 600 inner wall of acoustic box enclosure；In automobile instrument assembly
207 surroundings are filled with sound-absorbing sponge, wherein are equipped with cavity above the fixed position of instrument, microphone is equipped on cavity
602。
Then, vibration controller starts to send vibration signal to power amplifier, and power amplifier amplifies vibration signal
Afterwards driving vibrating base 404 vibration takes place, by vibrating sensor 405 detection vibration frequency, test frequency from 10Hz~
2000Hz is gradually changed；In vibration frequency change procedure, each microphone 602 can record sound frequency data to computer
On, the voice data of each microphone 602 is analyzed by computer；When discovery, some microphone 602 catches the voice data grabbed
It is inconsistent with standard frequency spectrum, or not in critical field, that is, show instrument corresponding to the microphone 602 there may be it is fixed not
The case where in place, should reexamine；Testing time on resonant frequency should accordingly lengthen, to test resonant frequency to instrument pine
It is dynamic whether to impact；
After above step, hydraulic cylinder 304 drives shake table to decline, and one-off is completed.
The automobile instrument disc assembly abnormal sound detection device for assembly line that the utility model embodiment provides, passes through calculating
Machine acoustic ensures the reliability and accuracy of test result, and does corresponding automatic improving to acoustic mechanism, is suitable for flowing water
Line produces, and is conducive to accelerate production efficiency, reduces cost of labor.
The automobile instrument disc assembly abnormal sound detection device for assembly line that the utility model embodiment is provided above
It being described in detail, specific case used herein is expounded the principles of the present invention and embodiment, with
The explanation of upper embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for this field
Those skilled in the art, according to the thought of the utility model, there will be changes in the specific implementation manner and application range, comprehensive
Upper described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. a kind of automobile instrument disc assembly abnormal sound detection device for assembly line, which is characterized in that including being used for bearing automobile
The tool fixture of instrument disc assembly, the conveyer belt for tool fixture transport, vibration machine, the driving vibration occur
Jacking mechanism, the closed acoustic case for sound detection of device vertical direction movement；The tooling of the conveyer belt conveying thereon is controlled
On tool to the vibration machine, the jacking mechanism jacks up the vibration machine, and the tool fixture is jacked up to cloth
It is placed in the acoustic case of top.
2. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as described in claim 1, which is characterized in that described
Automobile instrument disc assembly includes instrument panel shell and is fixed on the one or more Meter Parts of the instrument panel shell；
The instrument panel shell is fixed in tool fixture.
3. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as claimed in claim 2, which is characterized in that described
Jacking mechanism includes pedestal, horizontally disposed top plate, guide post, the hydraulic cylinder being oriented to for vertical direction；The cylinder body
It is fixed on the pedestal, piston rod is connect with the top plate；Described guide post one end is fixed on the top plate, and the other end passes through
The pedestal.
4. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as claimed in claim 3, which is characterized in that described
Vibration machine includes the power of the control signal for controlling the vibration controller of vibration frequency, the amplification vibration controller
Amplifier, the shake table for generating vibration；
The shake table includes vibrating base and table top, the vibrating base by be distributed on apex angle four connecting rods with it is described
Table top connects；
The vibrating base is installed on the top plate, is connect with power amplifier；It is equipped on the table top and the vibration
The vibrating sensor of controller connection；
The power amplifier is connect with the vibration controller.
5. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as claimed in claim 4, which is characterized in that described
Table top is magnechuck.
6. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as claimed in claim 5, which is characterized in that described
Acoustic case includes the open box-like casing of loudspeaker box in bottom surface, be attached to the casing of loudspeaker box inner wall sponge and with the metered quantity
Corresponding one or more microphone；The microphone fixed position is jacked set on the tool fixture to closed
After sidetone case, the surface of the instrument position.
7. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as claimed in claim 6, which is characterized in that described
Microphone is connected to the computer for audio analysis outside the acoustic case.
8. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as claimed in claim 7, which is characterized in that described
On the position of the non-instrument installation of casing of loudspeaker box, between the acoustic chamber interior wall and top plate, it is filled with sponge.
9. being used for the automobile instrument disc assembly abnormal sound detection device of assembly line as claimed in claim 8, which is characterized in that described
Top plate profile and the bottom surface open surface match profiles of the acoustic case are closed, after the hydraulic cylinder jacks shake table, the top plate
Periphery is bonded with the acoustic chamber interior wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770189.8U CN207730453U (en) | 2017-12-18 | 2017-12-18 | A kind of automobile instrument disc assembly abnormal sound detection device for assembly line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721770189.8U CN207730453U (en) | 2017-12-18 | 2017-12-18 | A kind of automobile instrument disc assembly abnormal sound detection device for assembly line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207730453U true CN207730453U (en) | 2018-08-14 |
Family
ID=63098779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721770189.8U Active CN207730453U (en) | 2017-12-18 | 2017-12-18 | A kind of automobile instrument disc assembly abnormal sound detection device for assembly line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207730453U (en) |
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2017
- 2017-12-18 CN CN201721770189.8U patent/CN207730453U/en active Active
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