CN110567646A - air tightness test fixture and air tightness test device - Google Patents
air tightness test fixture and air tightness test device Download PDFInfo
- Publication number
- CN110567646A CN110567646A CN201910950625.7A CN201910950625A CN110567646A CN 110567646 A CN110567646 A CN 110567646A CN 201910950625 A CN201910950625 A CN 201910950625A CN 110567646 A CN110567646 A CN 110567646A
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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
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to the technical field of air tightness test of waterproof electronic products, and discloses an air tightness test fixture and an air tightness test device, wherein the air tightness test fixture comprises: the fixture comprises a fixture body, a positioning device and a positioning device, wherein the fixture body is provided with a test cavity for placing a product to be tested; the plugging part is arranged in the testing cavity and is used for covering and plugging the air holes on the product to be tested; and the driving mechanism is arranged on the clamp body and is used for driving the plugging part to act. In the air tightness test fixture, the plugging part used for plugging the air holes of the products to be tested is arranged in the test cavity, the driving mechanism can drive the plugging part to automatically plug the air holes of the products to be tested, the plugging is accurate in place, the plugging is stable, the loosening is not easy, the sealing performance is good, the misdetection cannot be caused, and the improvement of the test efficiency and the through rate is facilitated.
Description
Technical Field
The invention relates to the technical field of air tightness test of waterproof electronic products, in particular to an air tightness test clamp and an air tightness test device.
Background
In order to achieve a good waterproof effect, the waterproof airtightness requirement of electronic waterproof products is generally higher, so when the electronic waterproof products leave a factory, the airtightness of the electronic waterproof products needs to be tested to ensure that the products are qualified, wherein generally, the electronic waterproof products with an audio call function have 1 to 2 balance air vents to ensure that the air pressure inside the products is consistent with the ambient air pressure, so when the electronic waterproof products with the balance air vents are subjected to airtightness testing, the balance air vents need to be plugged.
Disclosure of Invention
The invention discloses an air tightness test fixture and an air tightness test device, wherein a test cavity is internally provided with a plugging part for plugging air holes of a product to be tested, a driving mechanism can drive the plugging part to automatically plug the air holes of the product to be tested, the plugging is accurate in place, the plugging is stable and firm, the product is not easy to loosen and has good sealing performance, the mistesting cannot be caused, and the test efficiency and the straight through rate are favorably improved.
In order to achieve the purpose, the invention provides the following technical scheme:
A hermeticity test fixture, comprising:
the fixture comprises a fixture body, a positioning device and a positioning device, wherein the fixture body is provided with a test cavity for placing a product to be tested;
the plugging part is arranged in the testing cavity and is used for covering and plugging the air holes on the product to be tested;
And the driving mechanism is arranged on the clamp body and is used for driving the plugging part to act.
The air tightness test fixture comprises a fixture body, wherein a test cavity for placing a product to be tested is arranged on the fixture body, the product to be tested can be fixed in the test cavity, a plugging part corresponding to an air hole on the product to be tested is arranged in the test cavity, and a driving mechanism is arranged on the fixture body and is in transmission connection with the plugging part, the driving mechanism can drive the plugging part to move relative to the product to be tested, and drive the plugging part to plug and seal the air hole on the product to be tested so as to facilitate the air tightness test of the product to be tested, wherein the driving mechanism is adopted to directly plug and seal the air hole of the product to be tested by contacting the plugging part with the air hole of the product to be tested, the plugging is stable, the sealing performance is good, the air tightness is not loosened even under a high-pressure environment, the stability is strong, and the influence on the test caused by the fact, and the driving mechanism is directly adopted to drive the plugging part to automatically plug the air holes of the product to be tested, so that the manual operation is saved, the plugging is accurate in place, and the improvement of the testing efficiency and the first testing pass rate is facilitated.
Therefore, in the air tightness test fixture, the plugging part used for plugging the air holes of the product to be tested is arranged in the test cavity, the driving mechanism can drive the plugging part to automatically plug the air holes of the product to be tested, the plugging is accurate in place, the plugging is stable and firm, the loosening is not easy, the sealing performance is good, the misdetection cannot be caused, and the improvement of the test efficiency and the straight through rate is facilitated.
Optionally, the blocking portion includes a soft gel profiling block, and a profiling binding surface matched with the surface of the to-be-tested product having the vent hole is formed in the soft gel profiling block and used for covering the vent hole.
Optionally, the plugging portion includes a support piece used for being matched with the surface shape of the product to be tested with the air holes, the support piece is used for covering the surface of the air holes to form a profile matched with the surface of the product to be tested with the air holes, and the profile of the support piece is covered with a soft sealing gasket.
Optionally, the driving mechanism includes a slider connected to the blocking portion, and a power device in transmission connection with the slider and used for driving the slider to move.
Optionally, a sliding groove communicated with the test cavity is formed in the clamp body, and the sliding block is in sliding fit with the sliding groove.
Optionally, the power plant comprises a cylinder assembly.
Optionally, the fixture body includes an upper fixture body and a lower fixture body which are arranged oppositely and cooperatively, an upper cavity and a lower cavity are respectively arranged on the upper fixture body and the lower fixture body, and the upper cavity and the lower cavity are opposite and cooperatively form the test cavity.
Optionally, a sealing ring is arranged between the upper clamp body and the lower clamp body, and the sealing ring is located on the outer peripheral side of the test cavity.
Based on the same inventive concept, the invention also provides an air tightness testing device, which comprises any one of the air tightness testing clamps provided in the technical scheme.
Drawings
Fig. 1 is a schematic structural diagram of an air tightness test fixture according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a lower fixture body of an airtightness testing fixture according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a lower fixture body of an airtightness testing fixture according to an embodiment of the present invention;
Fig. 4 is a schematic cross-sectional view of a lower fixture body of an air tightness test fixture according to an embodiment of the present invention;
Icon: 1-a clamp body; 2-a blocking part; 3-a drive mechanism; 11-upper clamp body; 12-lower clamp body; 13-a test chamber; 14-a chute; 31-sliding block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
referring to fig. 1 to 3, an embodiment of the present invention provides an air-tightness test fixture, including: the fixture comprises a fixture body 1, wherein the fixture body 1 is provided with a test cavity 13 for placing a product to be tested; the plugging part 2 is arranged in the testing cavity 13 and is used for covering and plugging the air holes on the product to be tested; and a driving mechanism 3 mounted on the jig body and driving the plugging portion to operate.
The air tightness test fixture comprises a fixture body, wherein a test cavity for placing a product to be tested is arranged on the fixture body, the product to be tested can be fixed in the test cavity, a plugging part corresponding to an air hole on the product to be tested is arranged in the test cavity, and a driving mechanism is arranged on the fixture body and is in transmission connection with the plugging part, the driving mechanism can drive the plugging part to move relative to the product to be tested, and drive the plugging part to plug and seal the air hole on the product to be tested so as to facilitate the air tightness test of the product to be tested, wherein the driving mechanism is adopted to directly plug and seal the air hole of the product to be tested by contacting the plugging part with the air hole of the product to be tested, the plugging is stable, the sealing performance is good, the air tightness is not loosened even under a high-pressure environment, the stability is strong, and the influence on the test caused by the fact, and the driving mechanism is directly adopted to drive the plugging part to automatically plug the air holes of the product to be tested, so that the manual operation is saved, the plugging is accurate in place, and the improvement of the testing efficiency and the first testing pass rate is facilitated.
Therefore, in the air tightness test fixture, the plugging part used for plugging the air holes of the product to be tested is arranged in the test cavity, the driving mechanism can drive the plugging part to automatically plug the air holes of the product to be tested, the plugging is accurate in place, the plugging is stable and firm, the loosening is not easy, the sealing performance is good, the misdetection cannot be caused, and the improvement of the test efficiency and the straight through rate is facilitated.
It should be noted that the installation position of the plugging part on the clamp body can be set according to the position of the air hole of the product to be tested, when a product to be tested is placed in the test cavity, the plugging part corresponds to the air hole of the product to be tested, so that the plugging part and the driving mechanism connected with the plugging part can select a proper installation position on the clamp body according to actual requirements so as to plug the air hole of the product to be tested, in addition, the number of the plugging parts is also set according to the number of the air holes on the product to be tested, the plugging parts can be arranged to correspond to the air holes one by one, all the air holes of the product to be tested are plugged by the plugging parts, for example, the number of the air holes is two, two plugging parts can be arranged to correspond to the air holes one by one and tightly plug the air holes, so that the air tightness test of the product to be tested is facilitated, and the test efficiency is improved.
Specifically, in the above-mentioned air tightness test fixture, there may be various options for the specific arrangement of the blocking portion, such as:
The first method is as follows:
As shown in fig. 2, the plugging portion 1 includes a soft gel profiling block, and a profiling binding surface matched with the surface of the product to be tested, which has the air vent, is formed on the surface of the soft gel profiling block for covering the air vent. The shutoff portion can directly set up to a flexible glue copying block, the flexible glue is prevented the surface of type piece and can be imitated the appearance of the surface of the position that has the bleeder vent in the product that awaits measuring and is cooperated the setting towards the product that awaits measuring, namely, prevent the appearance of the side surface that is used for the shutoff bleeder vent in the type piece with the flexible glue and set up to be the same with the appearance of the surface that has the position of bleeder vent in the product that awaits measuring, can make the flexible glue prevent the type piece can be better with the product surface laminating degree of awaiting measuring, and flexible glue prevents the type piece and has certain softness, compress tightly flexible glue copying block in the bleeder vent department of the product that awaits measuring through actuating mechanism, flexible glue copying block produces certain deformation, and the product surface laminating of awaiting measuring is inseparabler, it is tighter to seal the bleeder vent, guarantee.
Specifically, the material of the soft gel-like block may be silica gel, rubber, or other flexible materials, which is not limited in this embodiment.
the second method comprises the following steps:
Specifically, the plugging part comprises a supporting piece which is used for being matched with the surface shape of the product to be tested with the air holes, a profiling surface which is matched with the surface of the product to be tested with the air holes is formed on the surface of the supporting piece for covering the air holes, and a soft sealing gasket is covered on the profiling surface of the supporting piece. The plugging part is set to be a combination of the supporting part and the soft sealing gasket, wherein the surface of the air hole of the supporting part facing to the product to be tested is matched with the surface appearance of the air hole in the product to be tested, namely, the appearance of one side surface of the supporting part for covering the air hole is set to be a profiling surface which is the same as the appearance of the surface of the part with the air hole in the product to be tested, the profiling surface can be better attached to the outer surface of the product to be tested, the soft sealing gasket is arranged on the profiling surface, the driving mechanism tightly presses the supporting part at the air hole of the product to be tested to cover the air hole, the soft sealing gasket is contacted with the outer surface of the product to be tested through the soft sealing gasket, the soft sealing gasket generates certain deformation, the soft sealing gasket can be more tightly attached to the outer surface of the product.
specifically, the flexible sealing gasket may be a soft rubber sealing gasket, and the material of the soft rubber sealing gasket may be silica gel, rubber or other flexible materials, which is not limited in this embodiment.
Specifically, as shown in fig. 4, the driving mechanism 3 includes a slider 14 connected to the plugging portion and a power device connected to the slider in a transmission manner and configured to drive the slider to move, a sliding groove 14 penetrating through the test chamber 13 is provided on the jig body, and the slider 31 is in sliding fit with the sliding groove 14. Be provided with the spout on the anchor clamps body, slider and spout sliding fit, and the slider can slide at the spout under power device's drive, can await measuring relatively and produce the nature to the motion to realize the shutoff to the bleeder vent of awaiting measuring the test product. The cross section of the sliding groove can be circular, namely the sliding groove is a circular sliding groove, the sliding block is a cylindrical sliding block (also can be a sliding rod), the shapes of the sliding block and the sliding groove can be set according to actual requirements, and the embodiment is not limited.
It should be further noted that the driving mechanism may also be another mechanism capable of driving the plugging portion to move relative to the air hole of the product to be tested, and this embodiment is not limited.
specifically, the power plant includes a cylinder assembly. The output force of the air cylinder is large, the requirements on the air hole plugging force of a product to be tested can be met, the action speed and the reaction speed are high, and the improvement of the working efficiency is facilitated. It should be noted that the power device may also be other power assemblies, and the embodiment is not limited.
Specifically, as shown in fig. 1, the fixture body may include an upper fixture body 11 and a lower fixture body 12 which are oppositely and cooperatively disposed, and an upper cavity and a lower cavity are respectively disposed on the upper fixture body and the lower fixture body, and the upper cavity and the lower cavity are oppositely and cooperatively configured to form a testing cavity. The clamp body is provided with an upper clamp body and a lower clamp body which are mutually matched, an upper cavity is respectively arranged on one side of the upper clamp body facing the lower clamp body, a lower cavity is arranged on one side of the lower clamp body facing the upper clamp body, the upper cavity is opposite to the lower cavity, after the upper clamp body and the lower clamp body are matched, the upper cavity and the lower cavity form a complete testing cavity, and a product to be tested is placed in the testing cavity;
as another setting mode of the test cavity, only one cavity may be disposed on the lower fixture body to form the test cavity, and the upper fixture body and the lower fixture body cooperate to fix the product to be tested in the test application, wherein, as shown in fig. 2 and 3, the driving mechanism 2 may be mounted on the lower fixture body 12, and in addition, the driving mechanism may also be mounted on the upper fixture body, and may be correspondingly disposed according to the positions of the air holes of the product to be tested, which is not limited in this embodiment.
Specifically, be equipped with the sealing washer between last anchor clamps body and the lower anchor clamps body, the sealing washer is located test chamber periphery side. Set up the sealing washer between last anchor clamps body and lower anchor clamps body, the sealing washer setting is in the week side that the test was requested, works as anchor clamps body and lower anchor clamps body cooperation and connect the back, can guarantee the leakproofness between anchor clamps body and the lower anchor clamps body, guarantees the leakproofness of test chamber, is favorable to improving the test accuracy to the product that awaits measuring, improves the through rate.
Based on the same inventive concept, the invention also provides an air tightness testing device, which comprises any one of the air tightness testing clamps provided in the embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An air-tightness test fixture, comprising:
The fixture comprises a fixture body, a positioning device and a positioning device, wherein the fixture body is provided with a test cavity for placing a product to be tested;
The plugging part is arranged in the testing cavity and is used for covering and plugging the air holes on the product to be tested;
And the driving mechanism is arranged on the clamp body and is used for driving the plugging part to act.
2. The air tightness testing jig according to claim 1, wherein the blocking portion comprises a soft rubber profiling block, and a surface of the soft rubber profiling block for covering the air vent forms a profiling adhesion surface matched with a surface of the product to be tested with the air vent.
3. the airtightness test fixture according to claim 1, wherein the blocking portion includes a support member for shape-fitting with the surface of the product to be tested having the air holes, a profiling surface for covering the air holes in the support member is formed to fit with the surface of the product to be tested having the air holes, and the profiling surface of the support member is covered with a flexible gasket.
4. The airtightness test fixture according to claim 1, wherein the driving mechanism includes a slider connected to the plugging portion, and a power device drivingly connected to the slider and configured to drive the slider to operate.
5. The airtightness test fixture according to claim 4, wherein the fixture body is provided with a slide groove which is communicated with the test chamber, and the slide block is in sliding fit with the slide groove.
6. the hermeticity test fixture of claim 4, wherein the power device comprises a cylinder assembly.
7. the airtightness test fixture according to claim 1, wherein the fixture body comprises an upper fixture body and a lower fixture body which are oppositely and cooperatively arranged, an upper cavity and a lower cavity are respectively arranged on the upper fixture body and the lower fixture body, and the upper cavity and the lower cavity are oppositely and cooperatively form the test chamber.
8. The airtightness test fixture according to claim 7, wherein a seal ring is provided between the upper fixture body and the lower fixture body, and the seal ring is located on an outer peripheral side of the test chamber.
9. a tightness test device comprising the tightness test jig according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910950625.7A CN110567646A (en) | 2019-10-08 | 2019-10-08 | air tightness test fixture and air tightness test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910950625.7A CN110567646A (en) | 2019-10-08 | 2019-10-08 | air tightness test fixture and air tightness test device |
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| Publication Number | Publication Date |
|---|---|
| CN110567646A true CN110567646A (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910950625.7A Pending CN110567646A (en) | 2019-10-08 | 2019-10-08 | air tightness test fixture and air tightness test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122072A (en) * | 2020-02-12 | 2020-05-08 | 广州阿普顿自动化系统有限公司 | Wearable product waterproof function detection device and detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204101244U (en) * | 2014-09-26 | 2015-01-14 | 十堰玉宇工贸有限公司 | Gas-holder end cap air tightness detection machine |
| CN110132504A (en) * | 2019-05-13 | 2019-08-16 | 大族激光科技产业集团股份有限公司 | Test device for air tightness and air tightness testing method |
| CN110146236A (en) * | 2019-06-27 | 2019-08-20 | 南京涵铭置智能科技有限公司 | A kind of automobile oil filter air tightness test automation equipment and its test method |
| CN209416594U (en) * | 2018-12-28 | 2019-09-20 | 苏州意达诺精密科技有限公司 | A kind of test device for air tightness |
-
2019
- 2019-10-08 CN CN201910950625.7A patent/CN110567646A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204101244U (en) * | 2014-09-26 | 2015-01-14 | 十堰玉宇工贸有限公司 | Gas-holder end cap air tightness detection machine |
| CN209416594U (en) * | 2018-12-28 | 2019-09-20 | 苏州意达诺精密科技有限公司 | A kind of test device for air tightness |
| CN110132504A (en) * | 2019-05-13 | 2019-08-16 | 大族激光科技产业集团股份有限公司 | Test device for air tightness and air tightness testing method |
| CN110146236A (en) * | 2019-06-27 | 2019-08-20 | 南京涵铭置智能科技有限公司 | A kind of automobile oil filter air tightness test automation equipment and its test method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122072A (en) * | 2020-02-12 | 2020-05-08 | 广州阿普顿自动化系统有限公司 | Wearable product waterproof function detection device and detection method |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant before: Huaqin Technology Co.,Ltd. Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant after: Huaqin Technology Co.,Ltd. Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Applicant before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
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Application publication date: 20191213 |
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| RJ01 | Rejection of invention patent application after publication |