CN110926725A - Method for testing sealing performance of car Faraday bass sound box after welding - Google Patents
Method for testing sealing performance of car Faraday bass sound box after welding Download PDFInfo
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- CN110926725A CN110926725A CN201911255194.9A CN201911255194A CN110926725A CN 110926725 A CN110926725 A CN 110926725A CN 201911255194 A CN201911255194 A CN 201911255194A CN 110926725 A CN110926725 A CN 110926725A
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- sound box
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- box shell
- faraday
- silica gel
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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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention relates to the technical field of tightness test, in particular to a method for testing the tightness of a welded automobile Faraday subwoofer sound box shell. The technical scheme of the invention is as follows: the leak detector is characterized by comprising a sealing performance testing device, wherein the sealing performance testing device comprises a base, a supporting frame, a telescopic cylinder, a connecting assembly, a sealing mechanism, a profiling positioning block group and a leak detector, the supporting frame is arranged on the base, the telescopic cylinder is arranged on a top plate of the supporting frame, the sealing mechanism comprises an upper half part and a lower half part, the upper half part of the sealing mechanism is connected with the telescopic cylinder through the connecting assembly, the lower half part of the sealing mechanism is arranged on the base, and the profiling positioning block group is distributed and arranged on the base along the periphery of the lower half part of the sealing mechanism; the leak detector is used for detecting the sealing performance of the sound box shell. The invention can measure the sealing performance of the Faraday automobile bass sound box shell.
Description
Technical Field
The invention relates to the technical field of tightness test, in particular to a method for testing the tightness of a welded automobile Faraday subwoofer sound box shell.
Background
The casing is divided into casing and lower casing to car Faraday's heavy bass sound casing, and it is as an organic whole with casing welding down through welding technique, after the welding is accomplished, need detect the encapsulated situation of welding back sound casing, the gas leakage phenomenon can appear whether to guarantee the stereo set tone quality effect. The prior art does not enable efficient detection.
Disclosure of Invention
The invention provides a method for testing the sealing performance of a welded automobile Faraday bass sound box, which can be used for measuring the sealing performance of the Faraday automobile bass sound box.
The technical scheme of the invention is as follows:
a method for testing the sealing performance of an automobile Faraday subwoofer sound shell after welding is carried out by utilizing a sealing performance testing device, wherein the sealing performance testing device comprises a base, a supporting frame, a telescopic cylinder, a connecting assembly, a sealing mechanism, a profiling positioning block group and a leak detector, the supporting frame is arranged on the base, and the telescopic cylinder is arranged on a top plate of the supporting frame; the sealing mechanism comprises an upper half part and a lower half part, the upper half part of the sealing mechanism comprises a silica gel sealing plug I and a nylon supporting block I, the nylon supporting block I is installed on the connecting component, the silica gel sealing plug I is installed on the nylon supporting block I, and the silica gel sealing plug I is used for plugging a loudspeaker sound outlet hole above the sound shell; the lower half part of the sealing mechanism comprises a silica gel sealing plug II and a nylon supporting block II, the nylon supporting block II is installed on the base, the silica gel sealing plug II is installed on the nylon supporting block II, and the silica gel sealing plug II is used for plugging a loudspeaker sound outlet hole below the sound shell; the upper half part of the sealing mechanism is connected with the telescopic cylinder through the connecting assembly, the lower half part of the sealing mechanism is arranged on the base, and the profiling positioning block groups are distributed and arranged on the base along the periphery of the lower half part of the sealing mechanism; the leak detector is used for detecting the sealing property of the sound box shell; the telescopic cylinder is connected with the air pump through an air valve control mechanism, the air valve control mechanism comprises a quick-opening air valve, an air guide pipe, a handle, an air inlet of the air pump and two valve air inlet and outlet ports, the air guide pipe is arranged at two ends of the telescopic cylinder respectively, and the other port of the air guide pipe is connected with the valve air inlet and outlet ports; the air pump supplies air through the air inlet of the air pump; the quick-opening air valve is provided with the handle; the method specifically comprises the following steps:
1) placing the Faraday automobile bass sound box shell in the profiling positioning block group and positioning the Faraday automobile bass sound box shell on the base; sealing a horn sound outlet below the sound shell by using a silica gel sealing plug II;
2) the handle is pulled, the quick-opening air valve is opened, the telescopic cylinder starts the piston rod to drive the silica gel sealing plug I and the downward pressing positioning nylon block to start to press downwards, and the sound shell is positioned and sealed;
3) starting a leak detector to inflate the sound box shell for a certain time, displaying a numerical value according to the change of the gas pressure in the sound box shell by the leak detector, and judging the tightness of the sound box shell;
4) and after the detection is finished, the quick-opening air valve is closed, and the telescopic air cylinder starts to ascend and returns to the original position.
Further, the method for testing the sealing performance of the welded automobile Faraday bass sound shell comprises the following steps that the profiling positioning block group comprises five product profiling blocks, and the positioning surfaces of the product profiling blocks are attached to the molded surface of the sound shell.
Further, the method for testing the sealing performance of the welded automobile Faraday bass sound box shell comprises the following steps that the connecting assembly comprises a supporting plate, a connecting piece, a guide rod and guide sleeves, wherein one end of the connecting piece is installed at the end of a piston rod of the telescopic cylinder, the other end of the connecting piece is installed on the supporting plate, and the two guide sleeves are installed on a top plate of the supporting frame and distributed on two sides of the telescopic cylinder; one ends of the two guide rods are arranged on the supporting plate and distributed on two sides of the connecting piece, and the other ends of the guide rods are placed in the guide sleeves.
Furthermore, according to the method for testing the sealing performance of the welded automobile Faraday bass sound shell, a downward pressing and positioning nylon block is arranged on the side part below the connecting piece, and a silica gel pad is arranged below the downward pressing and positioning nylon block and used for pressing the sound shell to position.
Further, in the method for testing the sealing performance of the welded automobile Faraday bass sound box shell, the first silica gel sealing plug is provided with a testing air nozzle, and the leak detector fills air into the sound box shell through the testing air nozzle.
The invention has the beneficial effects that: the testing method can seal the sound outlet holes of the upper and lower loudspeakers of the Faraday bass sound box shell of the automobile, detect the sealing performance of the sound box shell through the leak detector and ensure the accuracy of the testing result.
Drawings
FIG. 1 is a front view of a leak testing apparatus;
FIG. 2 is a left side view of the leak testing apparatus;
FIG. 3 is a perspective view of the tightness testing device;
fig. 4 is a structural view of the Faraday subwoofer cabinet of the automobile.
Detailed Description
As shown in fig. 1-4, the tightness testing device includes a base 1, a supporting frame 2, a telescopic cylinder 3, a connecting assembly, a sealing mechanism, a profiling positioning block group 4 and a leak detector, wherein the supporting frame 2 is arranged on the base 1, the telescopic cylinder 3 is arranged on a top plate of the supporting frame 2, the sealing mechanism includes an upper half and a lower half, the upper half of the sealing mechanism includes a silica gel sealing plug 6 and a nylon supporting block 5, the silica gel sealing plug 6 is arranged on the nylon supporting block 5, and the silica gel sealing plug 6 is used for plugging a horn sound outlet hole above the sound housing 20; the lower half part of the sealing mechanism comprises a second silica gel sealing plug 8 and a second nylon supporting block 7, the second nylon supporting block 7 is installed on the base 1, the second silica gel sealing plug 8 is installed on the second nylon supporting block 7, and the second silica gel sealing plug 8 is used for plugging a loudspeaker sound outlet hole below the sound shell 20; the connecting assembly comprises a supporting plate 9, a connecting piece 10, a guide rod 12 and guide sleeves 13, one end of the connecting piece 10 is installed at the end of a piston rod 11 of the telescopic cylinder 3, the other end of the connecting piece 10 is installed on the supporting plate 9, and the two guide sleeves 12 are installed on a top plate of the supporting frame 2 and distributed on two sides of the telescopic cylinder 3; one end of each of the two guide rods 12 is mounted on the support plate 9 and distributed on two sides of the connecting piece 10, and the other end of each of the two guide rods 12 is placed in the guide sleeve 13; the nylon supporting block I5 is arranged on the supporting plate 9; a downward pressing and positioning nylon block 18 is arranged on the side part below the connecting piece 10, and a silica gel pad 19 is arranged below the downward pressing and positioning nylon block 18 and used for pressing and positioning a sound shell 20; the profiling positioning block group 4 comprises five product profiling blocks, the positioning surfaces of the product profiling blocks are attached to the molded surface of the sound box shell, and the profiling positioning block group 4 is distributed and installed on the base 1 along the periphery of the nylon support block II 7; the telescopic cylinder 3 is connected with an air pump through an air valve control mechanism, the air valve control mechanism comprises a quick-opening air valve 14, an air guide pipe 16, a handle 15, an air inlet 17 of the air pump and two valve air inlet and outlet ports, the air guide pipe 16 is respectively arranged at two ends of the telescopic cylinder 3, and the other port of the air guide pipe 16 is connected with the valve air inlet and outlet ports; the air pump supplies air through the air pump air inlet 17; the quick-opening air valve 14 is provided with the handle 15; the first silica gel sealing plug 6 is provided with a test air nozzle, and the leak detector adds air into the sound box shell 20 through the test air nozzle; the leak detector is a product of FKD corporation of japan, model FL-296L-0, and is used to detect the sealability of the acoustic enclosure 20.
The method for testing the sealing performance of the welded automobile Faraday bass sound shell utilizes the sealing performance testing device to test, and specifically comprises the following steps:
1) the Faraday automobile bass sound box shell 20 is placed in the profiling positioning block group 4 and positioned on the base 1; a horn sound outlet below the sound shell 20 is sealed by a silica gel sealing plug II 8;
2) the handle 15 is pulled, the quick-opening air valve 14 is opened, the telescopic cylinder 3 starts the piston rod 11 to drive the silica gel sealing plug 6 and the downward-pressing positioning nylon block 18 to start to press down, and the sound shell 20 is positioned and sealed;
3) starting a leak detector to inflate the sound box shell 20 for a certain time, displaying a numerical value according to the change of the gas pressure in the sound box shell 20 by the leak detector, and judging the tightness of the sound box shell 20;
4) and after the detection is finished, the quick-opening air valve 14 is closed, and the telescopic air cylinder 3 starts to ascend and returns to the original position.
Claims (5)
1. The method for testing the sealing performance of the welded automobile Faraday bass sound shell is characterized in that a sealing performance testing device is used for testing, the sealing performance testing device comprises a base, a supporting frame, a telescopic cylinder, a connecting assembly, a sealing mechanism, a profiling positioning block group and a leak detector, the supporting frame is arranged on the base, and the telescopic cylinder is arranged on a top plate of the supporting frame; the sealing mechanism comprises an upper half part and a lower half part, the upper half part of the sealing mechanism comprises a silica gel sealing plug I and a nylon supporting block I, the nylon supporting block I is installed on the connecting component, the silica gel sealing plug I is installed on the nylon supporting block I, and the silica gel sealing plug I is used for plugging a loudspeaker sound outlet hole above the sound shell; the lower half part of the sealing mechanism comprises a silica gel sealing plug II and a nylon supporting block II, the nylon supporting block II is installed on the base, the silica gel sealing plug II is installed on the nylon supporting block II, and the silica gel sealing plug II is used for plugging a loudspeaker sound outlet hole below the sound shell; the upper half part of the sealing mechanism is connected with the telescopic cylinder through the connecting assembly, the lower half part of the sealing mechanism is arranged on the base, and the profiling positioning block groups are distributed and arranged on the base along the periphery of the lower half part of the sealing mechanism; the leak detector is used for detecting the sealing property of the sound box shell; the telescopic cylinder is connected with the air pump through an air valve control mechanism, the air valve control mechanism comprises a quick-opening air valve, an air guide pipe, a handle, an air inlet of the air pump and two valve air inlet and outlet ports, the air guide pipe is arranged at two ends of the telescopic cylinder respectively, and the other port of the air guide pipe is connected with the valve air inlet and outlet ports; the air pump supplies air through the air inlet of the air pump; the quick-opening air valve is provided with the handle; the method specifically comprises the following steps:
1) placing the Faraday automobile bass sound box shell in the profiling positioning block group and positioning the Faraday automobile bass sound box shell on the base; sealing a horn sound outlet below the sound shell by using a silica gel sealing plug II;
2) the handle is pulled, the quick-opening air valve is opened, the telescopic cylinder starts the piston rod to drive the silica gel sealing plug I and the downward pressing positioning nylon block to start to press downwards, and the sound shell is positioned and sealed;
3) starting a leak detector to inflate the sound box shell for a certain time, displaying a numerical value according to the change of the gas pressure in the sound box shell by the leak detector, and judging the tightness of the sound box shell;
4) and after the detection is finished, the quick-opening air valve is closed, and the telescopic air cylinder starts to ascend and returns to the original position.
2. The method for testing the sealing performance of the welded automobile Faraday bass sound box shell according to claim 1, wherein the profiling positioning block group comprises five product profiling blocks, and the positioning surface of each product profiling block is attached to the profile of the sound box shell.
3. The method for testing the tightness of the welded automobile Faraday bass sound box shell according to claim 1, wherein the connecting assembly comprises a supporting plate, a connecting piece, a guide rod and guide sleeves, one end of the connecting piece is installed at the end of the piston rod of the telescopic cylinder, the other end of the connecting piece is installed on the supporting plate, and the two guide sleeves are installed on the top plate of the supporting frame and distributed on two sides of the telescopic cylinder; one ends of the two guide rods are arranged on the supporting plate and distributed on two sides of the connecting piece, and the other ends of the guide rods are placed in the guide sleeves.
4. The method for testing the sealing performance of the welded car Faraday bass sound box shell as claimed in claim 3, wherein a pressing and positioning nylon block is arranged at the side below the connecting piece, and a silica gel pad is arranged below the pressing and positioning nylon block for pressing and positioning the sound box shell.
5. The method for testing the sealing performance of the welded automobile Faraday bass sound box shell as claimed in claim 1, wherein a first silicone sealing plug is provided with a test air tap, and the leak detector inflates air into the sound box shell through the test air tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255194.9A CN110926725A (en) | 2019-12-10 | 2019-12-10 | Method for testing sealing performance of car Faraday bass sound box after welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911255194.9A CN110926725A (en) | 2019-12-10 | 2019-12-10 | Method for testing sealing performance of car Faraday bass sound box after welding |
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| CN110926725A true CN110926725A (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911255194.9A Pending CN110926725A (en) | 2019-12-10 | 2019-12-10 | Method for testing sealing performance of car Faraday bass sound box after welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952615A (en) * | 2023-09-18 | 2023-10-27 | 苏州猎奇智能设备有限公司 | Multifunctional automatic test equipment and test method for automobile tail wing |
Citations (7)
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| JPH09196799A (en) * | 1996-01-23 | 1997-07-31 | Sanyu Nikki Kk | Method and apparatus for detection of leak in fluid housing object |
| CN201464141U (en) * | 2009-07-03 | 2010-05-12 | 湖北环宇车灯有限公司 | Air tightness detection machine for auto lamps |
| CN204142452U (en) * | 2014-04-30 | 2015-02-04 | 江苏裕成电子有限公司 | The sealing test device in Microspeaker starting of oscillation chamber |
| CN204705453U (en) * | 2015-05-15 | 2015-10-14 | 北京市金索恒盾防护设备有限公司 | Double link sealed valve airtightness measurement device |
| CN105258866A (en) * | 2015-09-22 | 2016-01-20 | 宁波神通模塑有限公司 | Test equipment for automotive plastic oil sump |
| CN208872467U (en) * | 2018-09-11 | 2019-05-17 | 上海施赛自动化科技有限公司 | A kind of leakage proof detection device |
| CN209214862U (en) * | 2019-01-25 | 2019-08-06 | 厦门宏驰实业有限公司 | A kind of sound equipment air-tightness detection device |
-
2019
- 2019-12-10 CN CN201911255194.9A patent/CN110926725A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196799A (en) * | 1996-01-23 | 1997-07-31 | Sanyu Nikki Kk | Method and apparatus for detection of leak in fluid housing object |
| CN201464141U (en) * | 2009-07-03 | 2010-05-12 | 湖北环宇车灯有限公司 | Air tightness detection machine for auto lamps |
| CN204142452U (en) * | 2014-04-30 | 2015-02-04 | 江苏裕成电子有限公司 | The sealing test device in Microspeaker starting of oscillation chamber |
| CN204705453U (en) * | 2015-05-15 | 2015-10-14 | 北京市金索恒盾防护设备有限公司 | Double link sealed valve airtightness measurement device |
| CN105258866A (en) * | 2015-09-22 | 2016-01-20 | 宁波神通模塑有限公司 | Test equipment for automotive plastic oil sump |
| CN208872467U (en) * | 2018-09-11 | 2019-05-17 | 上海施赛自动化科技有限公司 | A kind of leakage proof detection device |
| CN209214862U (en) * | 2019-01-25 | 2019-08-06 | 厦门宏驰实业有限公司 | A kind of sound equipment air-tightness detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952615A (en) * | 2023-09-18 | 2023-10-27 | 苏州猎奇智能设备有限公司 | Multifunctional automatic test equipment and test method for automobile tail wing |
| CN116952615B (en) * | 2023-09-18 | 2023-12-19 | 苏州猎奇智能设备有限公司 | Multifunctional automatic test equipment and test method for automobile tail wing |
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Application publication date: 20200327 |