CN110879138A - Dust screen assembly detection equipment and detection method - Google Patents
Dust screen assembly detection equipment and detection method Download PDFInfo
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- CN110879138A CN110879138A CN201911113265.1A CN201911113265A CN110879138A CN 110879138 A CN110879138 A CN 110879138A CN 201911113265 A CN201911113265 A CN 201911113265A CN 110879138 A CN110879138 A CN 110879138A
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/083—Means for indicating or recording, e.g. for remote indication electrical
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Abstract
The invention discloses dustproof net assembly detection equipment and a detection method, and relates to the technical field of detection equipment. The dustproof net assembly detection equipment comprises a product fixing device for fixing a product, wherein the product fixing device is provided with a detection hole corresponding to the sound hole of the product; the vacuumizing device is connected with the detection hole; the negative pressure sensor is arranged between the vacuumizing device and the detection hole, and is electrically connected with the control unit and used for detecting whether the dust screen is assembled in the sound hole or not. The dust screen assembly detection equipment and the detection method can accurately detect whether the dust screen is assembled in the sound hole of the product, realize automation and improve detection efficiency.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to dustproof net assembly detection equipment and a detection method.
Background
In the electron trade, car pronunciation pick up module sound hole mainly used picks up the interior sound of car, and the dust screen is used for protecting the inside electronic components of car pronunciation pick up module, prevents that outside dust from getting into.
At present, the dust screen is mainly placed the car pronunciation through the manual work and is picked up the module with it, and the later stage has or not neglected loading dust screen through artifical the detection, but the condition of judgement mistake easily appears in this kind of artifical mode that detects, causes to detect inaccurately, leads to later stage product assembly badly, and artifical detection labour is powerful, and detection efficiency is low.
Disclosure of Invention
In view of the above defects in the prior art, a first object of the present invention is to provide a device for detecting assembly of a dust screen, which can accurately detect whether the dust screen is assembled in the sound hole of the product, thereby realizing automation and improving detection efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
the dustproof net assembly detection equipment comprises a product fixing device for fixing a product, wherein the product fixing device is provided with a detection hole corresponding to the sound hole of the product; the vacuumizing device is connected with the detection hole; the negative pressure sensor is arranged between the vacuumizing device and the detection hole, and is electrically connected with the control unit and used for detecting whether the dust screen is assembled in the sound hole or not.
Wherein, the vacuum-pumping device is a vacuum generator.
The product fixing device comprises an installation frame, a product positioning seat and a product pressing mechanism, the product positioning seat is used for positioning the product, the detection hole is formed in the product positioning seat, the product positioning seat is fixedly arranged on the installation frame, and the product pressing mechanism is used for pressing the product on the product positioning seat.
The product positioning seat is provided with a positioning groove matched with the product, and the detection hole is formed in the bottom of the positioning groove.
Wherein the product pressing mechanism comprises a pressing head driven by a power device and used for pressing the product.
The two pressure heads are respectively hinged to two opposite sides of the product positioning seat; the power output end of the power device is fixedly provided with an installation rod, two ends of the installation rod are respectively hinged with a connecting rod, and the two pressure heads are respectively hinged with the corresponding connecting rods.
Wherein, the mounting bracket includes the bottom plate, with bottom plate parallel arrangement's mounting panel to and connect perpendicularly the bottom plate with backup pad between the mounting panel, the mounting panel with be provided with the support between the bottom plate, power device is fixed to be set up on the support.
The support is provided with a linear slide rail, and the mounting rod is fixedly arranged on a slide block of the linear slide rail.
And the mounting rack is provided with a detection device for detecting whether the product is placed in place or not.
By adopting the technical scheme, the invention has the beneficial effects that:
the dust screen assembly detection equipment provided by the invention is provided with the product fixing device, the vacuumizing device and the negative pressure sensor, when in use, a product is fixed through the product fixing device, air is exhausted from the sound hole of the product through the vacuumizing device, meanwhile, the air pressure at the sound hole of the product is detected by the negative pressure sensor, the negative pressure sensor transmits a detected pressure signal to the control unit, and the control unit judges whether the dust screen exists at the sound hole according to the transmitted pressure signal.
The second purpose of the invention is to provide a detection method, which can accurately detect whether the dustproof net is assembled in the sound hole of the product, realize automation and improve detection efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
the detection method comprises the dust screen assembly detection equipment in the first technical scheme, and comprises the following detection steps:
s1, placing a product on a product fixing device, and enabling a sound hole of the product to correspond to a detection hole of the product fixing device;
s2, starting a vacuumizing device, and exhausting air from the sound hole through the detection hole by the vacuumizing device;
and S3, detecting the air pressure at the position of the detection hole by using a negative pressure sensor, transmitting a detected pressure signal to a control unit by using the negative pressure sensor, and judging whether the dust screen exists at the position of the sound hole or not by the control unit according to the transmitted pressure signal.
By adopting the technical scheme, the invention has the beneficial effects that:
according to the detection method provided by the invention, as the dustproof net assembly detection equipment in the first technical scheme is adopted, compared with a manual detection mode in the prior art, the occurrence of judgment errors in manual detection is avoided, whether the dustproof net is assembled in the sound hole of the product can be accurately detected, the automation is realized, and the detection efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a dust screen assembly inspection apparatus of the present invention;
FIG. 2 is a schematic structural view of one side of a product fixing device in the dust screen assembling and detecting apparatus according to the present invention;
FIG. 3 is a schematic structural view of the other side of the product fixing device in the dust screen assembling and detecting apparatus according to the present invention;
FIG. 4 is a partial cross-sectional view of a product holding device in the dust screen assembly inspection apparatus of the present invention;
in the figure: 1-an evacuating device, 2-a negative pressure sensor, 3-a product, 31-a sound hole, 4-a product positioning seat, 41-a positioning groove, 42-a detection hole, 5-a pipeline, 6-a rubber pad, 7-a power device, 8-a first pressure head, 9-a second pressure head, 10-a first hinging seat, 11-a second hinging seat, 12-a mounting rod, 13-a first connecting rod, 14-a second connecting rod, 15-a bottom plate, 16-a mounting plate, 161-a through hole, 17-a supporting plate, 18-a support, 19-a linear sliding rail, 191-a sliding block, 20-a fixing seat, 21-a photoelectric sensor, 22-an air pipe joint, 23-a pipeline, 24-a suction nozzle and 25-a pipeline.
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 first embodiment is as follows:
as shown in fig. 1 to 4 in common, the dust-screen assembly inspection apparatus includes a product fixing device for fixing a product 3, the product fixing device being provided with inspection holes 42 corresponding to the sound holes 31 of the product 3; the vacuumizing device 1 is connected with the detection hole 42; the negative pressure sensor 2 is arranged between the vacuumizing device 1 and the detection hole 42, and the negative pressure sensor 2 is electrically connected with a control unit (not shown in the figure) and used for detecting whether the dustproof net is assembled in the sound hole 31 or not. In the embodiment, the vacuumizing device 1 is connected with a pipeline 5, the pipeline 5 is provided with an air pipe joint 22, the air pipe joint 22 is respectively connected with a pipeline 23 and a pipeline 25, the negative pressure sensor 2 is arranged on the pipeline 23, and the pipeline 25 is connected with a detection hole 42; because the vacuum generator is a novel, efficient, clean, economic and small vacuum component which utilizes a positive pressure air source to generate negative pressure, the negative pressure can be easily and conveniently obtained at a place with compressed air or a place which needs the positive and negative pressure in a pneumatic system, therefore, the preferred vacuumizing device 1 in the embodiment is the vacuum generator, and in practical application, vacuumizing devices such as a vacuum pump can also be adopted.
The product fixing device in the embodiment comprises an installation frame, a product positioning seat 4 for positioning a product 3 and a product pressing mechanism, wherein the detection hole 42 is formed in the product positioning seat 4, the product positioning seat 4 is fixedly arranged on the installation frame, and the product pressing mechanism is used for pressing the product 3 on the product positioning seat 4.
As shown in fig. 3 and 4, the product positioning seat 4 is provided with a positioning groove 41 adapted to the product 3, and the detection hole 42 is disposed at the bottom of the positioning groove 41. Be provided with rubber pad 6 in the constant head tank 41 in this embodiment, through the sealed effect of rubber pad 6, guaranteed the leakproofness of product 3 with constant head tank 41 bottom, improved detection quality.
As shown collectively in fig. 1 to 3, the product pressing mechanism includes a press head driven by a power unit 7 for pressing the product 3. In this embodiment, the power device 7 is preferably an air cylinder, and in practical applications, the power device 7 may also be an electric cylinder or a hydraulic cylinder, which is not limited in this embodiment.
As shown in fig. 1 to 3, two pressing heads are provided, and the two pressing heads are respectively hinged on two opposite sides of the product positioning seat 4; the power output end of the power device 7 is fixedly provided with an installation rod 12, two ends of the installation rod 12 are respectively hinged with a connecting rod, and the two pressure heads are respectively hinged with the corresponding connecting rods.
The pressing heads in the embodiment are respectively a first pressing head 8 and a second pressing head 9, the two opposite sides of the product positioning seat 4 are respectively provided with a first hinge seat 10 and a second hinge seat 11, the first pressing head 8 is hinged on the first hinge seat 10, and the second pressing head 9 is hinged on the second hinge seat 11; the connecting rods are respectively a first connecting rod 13 and a second connecting rod 14, the first connecting rod 13 and the second connecting rod 14 are respectively hinged at two ends of the mounting rod 12, the end part of the first pressure head 8 is hinged with the first connecting rod 13, and the second pressure head 9 is hinged with the second connecting rod 14.
As shown in fig. 1 to 4, the mounting bracket in this embodiment includes a bottom plate 15, a mounting plate 16 disposed parallel to the bottom plate 15, and a support plate 17 vertically connected between the bottom plate 15 and the mounting plate 16, the support plate 17 is provided in two pieces, a bracket 18 is disposed between the mounting plate 16 and the bottom plate 15, and the power unit 7 is fixedly disposed on the bracket 18; the mounting plate 16 is provided with a through hole 161 corresponding to the product positioning seat 4, the pipeline 25 is provided with a suction nozzle 24, and the suction nozzle 24 passes through the through hole 161 and is connected to the detection hole 42.
As shown in fig. 1 and fig. 2, in the present embodiment, the linear slide 19 is disposed on the bracket 18, and the mounting rod 12 is fixedly disposed on the sliding block 191 of the linear slide 19. Through setting up linear slide 19, improved installation pole 12 vertical movement's straightness nature, guaranteed that first pressure head 8 and second pressure head 9 compress tightly product 3 in step, further guarantee the accuracy of testing result.
As shown in fig. 1 to 4, in this embodiment, a detection device for detecting whether the product 3 is placed in place is disposed on the mounting frame, the detection device in this embodiment includes a fixing seat 20 disposed on the mounting plate 16, and a photoelectric sensor 21 electrically connected to the control unit is disposed on the fixing seat 20.
Example two:
as shown in fig. 1 to 4, the detection method includes the dust screen assembling detection apparatus according to the first embodiment, and the detection steps are as follows:
s1, placing a product 3 on a product fixing device, and enabling a sound hole 31 of the product 3 to correspond to a detection hole 42 of the product fixing device;
s2, starting the vacuumizing device 4, and vacuumizing the sound hole 31 by the vacuumizing device 4 through the detection hole 42;
s3, detecting the air pressure at the sound hole 31 by using the negative pressure sensor 7, transmitting the detected pressure signal to the control unit by using the negative pressure sensor 7, and judging whether the dust screen exists at the sound hole 31 by the control unit according to the transmitted pressure signal.
The control unit in this embodiment is the PLC controller, and negative pressure sensor 7 gives the PLC controller with the pressure signal transmission who detects, and the PLC controller is according to the two kinds of signals of pressure signal output high level and low level that transmit, when high level output, can judge and have the dust screen in the product 3, when low level output, can judge that there is not the dust screen in the product 3.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without departing from the spirit and scope of the present invention.
Claims (10)
1. The dust screen assembly detection equipment is characterized by comprising
The product fixing device is used for fixing a product and is provided with a detection hole corresponding to the sound hole of the product;
the vacuumizing device is connected with the detection hole;
the negative pressure sensor is arranged between the vacuumizing device and the detection hole, and is electrically connected with the control unit and used for detecting whether the dust screen is assembled in the sound hole or not.
2. The dust screen assembly detection apparatus of claim 1, wherein the vacuum extractor is a vacuum generator.
3. The assembly detection equipment for the dust screen according to claim 1, wherein the product fixing device comprises a mounting frame, a product positioning seat for positioning the product, and a product pressing mechanism, the detection hole is disposed on the product positioning seat, the product positioning seat is fixedly disposed on the mounting frame, and the product pressing mechanism is configured to press the product on the product positioning seat.
4. The assembly detection device for dust screen according to claim 3, wherein the product positioning seat is provided with a positioning groove adapted to the product, and the detection hole is provided at the bottom of the positioning groove.
5. The dust screen assembly detection apparatus of claim 3, wherein the product hold down mechanism comprises a ram driven by a power device for holding down the product.
6. The dust screen assembly detection device of claim 5, wherein there are two of the indenters, and the two indenters are hinged to opposite sides of the product positioning seat; the power output end of the power device is fixedly provided with an installation rod, two ends of the installation rod are respectively hinged with a connecting rod, and the two pressure heads are respectively hinged with the corresponding connecting rods.
7. The dust screen assembly detection device of claim 6, wherein the mounting bracket comprises a bottom plate, a mounting plate arranged in parallel with the bottom plate, and a support plate vertically connected between the bottom plate and the mounting plate, a support is arranged between the mounting plate and the bottom plate, and the power device is fixedly arranged on the support.
8. The assembly detection equipment for the dust screen according to claim 7, wherein the bracket is provided with a linear slide rail, and the mounting rod is fixedly arranged on a sliding block of the linear slide rail.
9. The dust screen assembly detection device of claim 3, wherein a detection device for detecting whether the product is placed in place is arranged on the mounting rack.
10. The inspection method, characterized by comprising the dust screen assembly inspection apparatus of any one of claims 1 to 9, the inspection steps being as follows:
s1, placing a product on a product fixing device, and enabling a sound hole of the product to correspond to a detection hole of the product fixing device;
s2, starting a vacuumizing device, and exhausting air from the sound hole through the detection hole by the vacuumizing device;
and S3, detecting the air pressure at the position of the detection hole by using a negative pressure sensor, transmitting a detected pressure signal to a control unit by using the negative pressure sensor, and judging whether the dust screen exists at the position of the sound hole or not by the control unit according to the transmitted pressure signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113265.1A CN110879138A (en) | 2019-11-14 | 2019-11-14 | Dust screen assembly detection equipment and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911113265.1A CN110879138A (en) | 2019-11-14 | 2019-11-14 | Dust screen assembly detection equipment and detection method |
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| CN110879138A true CN110879138A (en) | 2020-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911113265.1A Pending CN110879138A (en) | 2019-11-14 | 2019-11-14 | Dust screen assembly detection equipment and detection method |
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Citations (8)
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| CN103925942A (en) * | 2014-03-18 | 2014-07-16 | 烽火通信科技股份有限公司 | Dust screen detection device and method for electronic device |
| CN204993828U (en) * | 2015-09-22 | 2016-01-20 | 歌尔声学股份有限公司 | A dustproof subassembly of phonate hole and speaker module for speaker module |
| CN205015139U (en) * | 2015-08-25 | 2016-02-03 | 深圳富泰宏精密工业有限公司 | Sealness detecting device |
| CN206658376U (en) * | 2017-04-12 | 2017-11-21 | 潍坊歌尔电子有限公司 | Air Filter pressurizer |
| CN108380510A (en) * | 2018-01-30 | 2018-08-10 | 广东方振新材料精密组件有限公司 | A kind of automatic patch Air Filter equipment |
| CN208013454U (en) * | 2018-02-27 | 2018-10-26 | 江苏鸿开工业自动化设备有限公司 | Axial workpiece neglected loading detection device in hole |
| CN108982332A (en) * | 2018-09-26 | 2018-12-11 | 常州北埠电子技术有限公司 | A kind of the sound resistance test method and its test device of sound-absorbing material |
| CN208780600U (en) * | 2018-09-26 | 2019-04-23 | 常州北埠电子技术有限公司 | A kind of sound resistance test device of sound-absorbing material |
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2019
- 2019-11-14 CN CN201911113265.1A patent/CN110879138A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925942A (en) * | 2014-03-18 | 2014-07-16 | 烽火通信科技股份有限公司 | Dust screen detection device and method for electronic device |
| CN205015139U (en) * | 2015-08-25 | 2016-02-03 | 深圳富泰宏精密工业有限公司 | Sealness detecting device |
| CN204993828U (en) * | 2015-09-22 | 2016-01-20 | 歌尔声学股份有限公司 | A dustproof subassembly of phonate hole and speaker module for speaker module |
| CN206658376U (en) * | 2017-04-12 | 2017-11-21 | 潍坊歌尔电子有限公司 | Air Filter pressurizer |
| CN108380510A (en) * | 2018-01-30 | 2018-08-10 | 广东方振新材料精密组件有限公司 | A kind of automatic patch Air Filter equipment |
| CN208013454U (en) * | 2018-02-27 | 2018-10-26 | 江苏鸿开工业自动化设备有限公司 | Axial workpiece neglected loading detection device in hole |
| CN108982332A (en) * | 2018-09-26 | 2018-12-11 | 常州北埠电子技术有限公司 | A kind of the sound resistance test method and its test device of sound-absorbing material |
| CN208780600U (en) * | 2018-09-26 | 2019-04-23 | 常州北埠电子技术有限公司 | A kind of sound resistance test device of sound-absorbing material |
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Effective date of registration: 20200729 Address after: 261031 building 10, Geer phase II Industrial Park, No. 102, Ronghua Road, Ronghua community, Xincheng street, high tech Zone, Weifang City, Shandong Province Applicant after: Weifang goer Microelectronics Co.,Ltd. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Applicant before: GOERTEK Inc. |
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Application publication date: 20200313 |
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