CN215677461U - Sealing performance detects frock - Google Patents
Sealing performance detects frock Download PDFInfo
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- CN215677461U CN215677461U CN202121714730.XU CN202121714730U CN215677461U CN 215677461 U CN215677461 U CN 215677461U CN 202121714730 U CN202121714730 U CN 202121714730U CN 215677461 U CN215677461 U CN 215677461U
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- 238000007789 sealing Methods 0.000 title claims abstract description 126
- 238000001514 detection method Methods 0.000 claims abstract description 78
- 238000003825 pressing Methods 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 9
- 230000002950 deficient Effects 0.000 abstract description 3
- 238000012031 short term test Methods 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000026058 directional locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The application discloses a sealing performance detection tool, which is used for detecting the air tightness of a sealing element, wherein the sealing performance detection tool comprises a base, a lower pressing element and an air tightness tester, wherein the top of the base is provided with a profiling detection cavity, the opening of the profiling detection cavity is smaller than the outer diameter of the sealing element, and the base is also provided with an air vent communicated with the profiling detection cavity; the lower pressing piece is movably arranged on the base relatively close to or far away from the copying detection cavity and is opposite to the opening of the copying detection cavity so as to press the sealing piece downwards to enable the sealing piece to cover the opening of the copying detection cavity; wherein the output interface of the airtight tester is communicated with the vent hole. This sealing performance detects frock can short-term test sealing member's gas tightness, prevents that the defective products from flowing into and producing the line to promote the product yield, and reduce the cost of enterprises.
Description
Technical Field
The utility model relates to the technical field of detection equipment, in particular to a sealing performance detection tool, which is used for detecting the air tightness of a sealing element.
Background
In many industrial manufacturing applications, seals are one of the most commonly used components. For example, auxiliary masses are often used as seals in clutches. However, in the actual use process of the sealing element, the auxiliary block often has a shrinkage cavity phenomenon to cause unqualified leakage, i.e. the leakage amount is too large or too small, the production line beat is seriously affected, the production quality control cost is increased, and the one-time assembly qualification rate of the product is reduced.
SUMMERY OF THE UTILITY MODEL
One advantage of the present invention is to provide a sealing performance detection tool, wherein a pressing member presses a sealing member on a base, and an air tightness tester detects pressure in a profiling detection cavity after the sealing member leaks for a predetermined time, so that air tightness of the sealing member can be rapidly detected, and defective products are prevented from flowing into a production line, thereby improving product yield and reducing enterprise cost.
One advantage of the present invention is to provide a sealing performance detection tool, in which an annular sealing groove is disposed in a base, and a first sealing ring is disposed in the annular sealing groove, so that the sealing performance between a sealing member and the base can be improved, and the reliability of the sealing performance detection tool can be further ensured.
One advantage of the present invention is to provide a sealing performance detection tool, which can more conveniently control the directional movement of a lower pressing member by providing a gantry.
One advantage of the present invention is to provide a sealing performance detecting tool, in which the pressing rod and the pressing table are provided, and the pressing rod is provided with an external thread matching with the threaded hole on the cross beam, such that the movement of the pressing member is conveniently and manually controlled, and the tool is convenient to operate, simple in structure, and low in cost.
One advantage of the present invention is to provide a sealing performance detection tool, which can automatically control the moving speed and the downward pressure of a downward pressing member by providing a driving mechanism, effectively improve the working efficiency, and ensure the detection quality.
One advantage of the present invention is to provide a sealing performance detecting tool, which can form a good seal between a lower pressing member and a through hole of a sealing member by disposing a second sealing ring at the bottom of a pressing table or a third sealing ring at the bottom of the lower pressing member, thereby further ensuring the reliability of the sealing performance detecting tool.
In order to achieve at least one of the above advantages of the present invention, the present invention provides a sealing performance detection tool for detecting the airtightness of a sealing member, wherein the sealing performance detection tool includes:
a base, wherein the base forms a profiling detection cavity on the top of the base, the opening of the profiling detection cavity is smaller than the outer diameter of the sealing element, and the base is further provided with a vent hole communicated with the profiling detection cavity;
a pressing piece, wherein the pressing piece is movably arranged on the base relatively close to or far away from the copying detection cavity and is opposite to the opening of the copying detection cavity so as to press the sealing piece to enable the sealing piece to cover the opening of the copying detection cavity; and
and the output interface of the air tightness tester is communicated with the vent hole.
According to an embodiment of the utility model, an annular sealing groove is further formed in the edge of the base, which is close to the profiling detection cavity, wherein the outer diameter of the annular sealing groove is smaller than that of the sealing element, and a first sealing ring is arranged in the annular sealing groove.
According to an embodiment of the utility model, the sealing performance detection tool further comprises a portal frame, wherein the portal frame comprises stand columns supported on two sides and a beam connected to the tops of the two stand columns, the beam is opposite to the profiling detection cavity, and the lower pressing piece is arranged on the beam in a vertically movable manner.
According to an embodiment of the utility model, the cross beam is provided with a threaded hole facing the profiling detection cavity, and the lower pressing piece is provided with an external thread matched with the threaded hole so as to be capable of being rotated to ascend or descend.
According to an embodiment of the present invention, the pressing member includes a pressing platform and a pressing rod, wherein the pressing platform is matched with the sealing member to cover a through hole in the middle of the sealing member and provide a positive downward pressure to the sealing member, the pressing rod is arranged at the top of the pressing platform, and the external thread is arranged on the surface of the pressing rod.
According to an embodiment of the utility model, a second sealing ring is embedded at the bottom of the pressing table, wherein the second sealing ring is opposite to the through hole, and the inner diameter of the second sealing ring is larger than the aperture of the through hole.
According to an embodiment of the present invention, a handle is disposed on an upper portion of the pressing rod, wherein the handle is located above the cross beam.
According to an embodiment of the utility model, the crossbar is provided with a drive mechanism, wherein the hold-down is connected to a drive end of the drive mechanism in an orientable driving manner.
According to an embodiment of the utility model, the drive mechanism is implemented as a cylinder.
According to an embodiment of the present invention, a third sealing ring is embedded in the bottom of the lower pressing member, wherein the third sealing ring directly faces a through hole in the middle of the sealing member, and the inner diameter of the third sealing ring is larger than the aperture of the through hole.
These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.
Drawings
Fig. 1 shows a schematic structural diagram of the sealing performance detection tool of the present application.
Fig. 2 shows an explosion structure schematic diagram of the sealing performance detection tool of the present application.
Detailed Description
The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the utility model, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.
It will be understood by those skilled in the art that in the disclosure of the specification, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, which are merely for convenience in describing the utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms are not to be construed as limiting the utility model.
Referring to fig. 1 and 2, a sealing performance testing tool according to a preferred embodiment of the present invention will be described in detail below, wherein the sealing performance testing tool is used for testing the airtightness of a sealing member 10, so that the sealing member 10 can generate a certain sealing performance against an object after being installed, i.e., the sealing member 10 can generate a predetermined range of leakage values without leaking too much pressure for a predetermined time after the object is ventilated.
The sealing performance testing tool comprises a base 20, a lower pressing piece 30 and an air tightness tester (not shown), wherein the base 20 forms a profiling detection cavity 201 at the top thereof, the opening of the profiling detection cavity 201 is smaller than the outer diameter of the sealing element 10, so that an object to be installed can be simulated through the base 20, and the air tightness of the sealing element 10 to the profiling detection cavity 201 can be tested. In addition, the base 20 is further provided with a vent hole 202 communicating with the scanning detection chamber 201, so that the scanning detection chamber 201 can be inflated through the vent hole 202, thereby generating a certain pressure value in the scanning detection chamber 201.
The lower pressing member 30 is movably disposed on the base 20 relatively close to or far from the profiling detection cavity 201 and faces the opening of the profiling detection cavity 201, so that the sealing member 10 is pressed down by the lower pressing member 30, so that the sealing member 10 can always cover the opening of the profiling detection cavity 201 during detection.
The output interface of the air tightness tester is communicated with the vent hole 202 to inflate the profiling detection cavity 201 and detect the air pressure in the profiling detection cavity 201.
Specifically, the airtightness tester is prepared by predicting: inflating the profiling detection cavity 201 at 2.5bar for 3.5 s; the seal 10 was then tested by adjusting the pressure of the test air pressure to 2.25bar and settling for a time of 3.0s, with a measurement time of 1.0 s. When the sealing member 10 reaches the specification, i.e., is within a predetermined range, i.e., within a range of an upper limit value +24pa from a lower limit value-122 pa, the airtightness tester automatically displays a green indicator and displays OK, whereas when the specification is out of specification, it is determined that the sealing member is not qualified regardless of the lower limit value range or the upper limit value range, and the airtightness tester displays red and NOK, thereby rapidly testing the airtightness of the sealing member 10.
This sealing performance detects frock can be right in advance sealing member 10 carries out the gas tightness and detects, and it is fast to detect, detects conveniently, and low in manufacturing cost can effectively avoid the defective work to flow into and produce the line, causes the loss of quality cost to effective control product yield, reduction in production cost.
In order to prevent the detection quality from being affected by the occurrence of air leakage at the connection between the sealing element 10 and the base 20, an annular sealing groove 203 is further disposed on the edge of the base 20 close to the profiling detection cavity 201, wherein the outer diameter of the annular sealing groove 203 is smaller than the outer diameter of the sealing element 10, and a first sealing ring 204 is disposed in the annular sealing groove 203. The first seal ring 204 can form a good seal in the circumferential direction of the profiling detection chamber 201 and between the seal 10 and the base 20, thereby further ensuring reliability of the airtightness detection of the seal 10.
As a preferred embodiment of the present invention, the sealing performance testing tool further includes a gantry 40, wherein the gantry 40 includes two columns 401 supported at two sides and a beam 402 connected to the tops of the two columns 401, wherein the beam 402 faces the profiling detection cavity 201, and the lower pressing member 30 is disposed on the beam 402 in a vertically movable manner, so that the installation of the lower pressing member 30 is facilitated through the gantry 40. In addition, because the positions of the cross beam 402 and the profiling detection cavity 201 are fixed, the sealing element 10 can be directly placed for detection during detection, so that the detection is convenient, the overall movement of the sealing performance detection tool is convenient, and the relative position does not need to be adjusted again after the movement.
Preferably, the cross beam 402 is provided with a threaded hole 4021 facing the profiling detection cavity 201. The lower pressing piece 30 is provided with an external thread 301 matched with the threaded hole 4021, so that the lower pressing piece 30 can be conveniently rotated to be lifted or rotated to be lowered through the matching of the external thread 301 and the threaded hole 4021, and the operation is convenient. In addition, the pressing member 30 is controlled to move by a pure mechanical manner, and is not restricted by electric power or other electronic equipment, so that the pressing member is convenient to use in various occasions, has a very wide application range, is easy to maintain and repair, and has low manufacturing cost.
It is worth mentioning that, for the detection of the sealing member 10 with a through hole 101 in the middle, it is further preferable that the lower pressing member 30 includes a pressing platform 302 and a pressing rod 303, wherein the pressing platform 302 cooperates with the sealing member 10 to cover the through hole 101 in the middle of the sealing member 10, so as to prevent the gas in the profiling detection cavity 201 from leaking from the through hole 101 to affect the detection quality. In addition, the pressing table 302 has a relatively large bottom surface, and a stable downward positive pressure can be provided to the seal 10 by the pressing table 302. The pressing bar 303 is disposed on top of the pressing table 302. The external thread 301 is provided on the surface of the plunger 303. When detecting, the pressing rod 303 can be directly and manually rotated to drive the pressing piece 30 to move downwards or upwards, which is very convenient.
Further preferably, a second sealing ring (not shown in the figure) is embedded in the bottom of the pressing platform 302, wherein the second sealing ring is opposite to the through hole 101, and the inner diameter of the second sealing ring is larger than the aperture of the through hole 101, so that good sealing is formed in the circumferential direction of the through hole 101 through the second sealing ring and between the pressing platform 302 and the sealing element 10, and the gas in the profiling detection cavity 201 is prevented from leaking from the through hole 101.
More preferably, a handle 304 is disposed on the upper portion of the pressing rod 303, wherein the handle 304 is located above the cross beam 402 to facilitate the rotation of the pressing rod 303 by the handle 304. The handle 304 is preferably implemented as a rotating rod perpendicular to the pressure bar 303. In addition, the handle 304 may also be configured as a simulated hand-type rotating ring.
As another preferred embodiment of the present invention, the cross beam 402 is provided with a driving mechanism (not shown), wherein the pressing member 30 is directionally and drivingly connected to a driving end of the driving mechanism, so that the moving speed and the pressing force of the sealing member 10 can be automatically controlled by the driving mechanism, thereby achieving a good control of the detection efficiency, and avoiding a possibility of applying a large or small pressing force to the sealing member 10 due to human negligence, thereby ensuring the detection quality.
Preferably, the drive mechanism is implemented as a pneumatic cylinder. In addition, a person skilled in the art can also easily think of using the cooperation of a rotating motor and a lead screw to convert the rotating motion of the motor into a directional motion through the lead screw so as to drive the pushing member 30 to move, and the specific structure and the connection relationship between the two are alternatives to the conventional technology, and the present invention is not described in detail again and is also within the protection scope of the present invention.
Further preferably, a third sealing ring (not shown in the figure) is embedded in the bottom of the lower pressing member 30, wherein the third sealing ring is opposite to the through hole 101 in the middle of the sealing member 10, and the inner diameter of the third sealing ring is greater than the aperture of the through hole 101, so that the third sealing ring is located in the circumferential direction of the through hole 101, the lower pressing member 30 and the sealing member 10 form good sealing, and the gas in the profiling detection cavity 201 is prevented from leaking from the through hole 101.
It should be noted that the terms "first, second and third" in the present invention are used for descriptive purposes only, do not denote any order, are not to be construed as indicating or implying any relative importance, and are to be interpreted as names.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are given by way of example only and are not limiting of the utility model. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (10)
1. The utility model provides a sealing performance detects frock for detect the gas tightness of a sealing member, its characterized in that, wherein sealing performance detects frock includes:
a base, wherein the base forms a profiling detection cavity on the top of the base, the opening of the profiling detection cavity is smaller than the outer diameter of the sealing element, and the base is further provided with a vent hole communicated with the profiling detection cavity;
a pressing piece, wherein the pressing piece is movably arranged on the base relatively close to or far away from the copying detection cavity and is opposite to the opening of the copying detection cavity so as to press the sealing piece to enable the sealing piece to cover the opening of the copying detection cavity; and
and the output interface of the air tightness tester is communicated with the vent hole.
2. The sealing performance detection tool according to claim 1, wherein an annular sealing groove is further formed in the edge, close to the profiling detection cavity, of the base, wherein the outer diameter of the annular sealing groove is smaller than that of the sealing element, and a first sealing ring is arranged in the annular sealing groove.
3. The sealability detection tool of claim 2 further comprising a gantry, wherein the gantry comprises two side columns and a beam connected to the tops of the two side columns, wherein the beam faces the profiling detection cavity, and the down-press member is movably disposed on the beam.
4. The sealing performance detection tool according to claim 3, wherein the cross beam is provided with a threaded hole facing the profiling detection cavity, and the pressing piece is provided with an external thread matched with the threaded hole so as to be capable of being rotated to ascend or descend.
5. The sealing performance testing tool of claim 4, wherein the downward pressing member comprises a pressing table and a pressing rod, wherein the pressing table is matched with the sealing member to cover a through hole in the middle of the sealing member and provide a downward positive pressure to the sealing member, the pressing rod is arranged at the top of the pressing table, and the external thread is arranged on the surface of the pressing rod.
6. The sealing performance detection tool according to claim 5, wherein a second sealing ring is embedded in the bottom of the pressing table, wherein the second sealing ring is opposite to the through hole, and the inner diameter of the second sealing ring is larger than the aperture of the through hole.
7. The sealing performance detection tool according to claim 5, wherein a handle is arranged at the upper part of the pressure rod, and the handle is positioned above the cross beam.
8. The sealability detection tooling of claim 3 wherein the cross beam is provided with a drive mechanism, wherein the hold-down is directionally driveably connected to a drive end of the drive mechanism.
9. The seal performance testing tool of claim 8, wherein the drive mechanism is implemented as a pneumatic cylinder.
10. The sealing performance detection tool according to claim 9, wherein a third sealing ring is embedded in the bottom of the lower pressing member, wherein the third sealing ring faces a through hole in the middle of the sealing member, and the inner diameter of the third sealing ring is larger than the aperture of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121714730.XU CN215677461U (en) | 2021-07-27 | 2021-07-27 | Sealing performance detects frock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121714730.XU CN215677461U (en) | 2021-07-27 | 2021-07-27 | Sealing performance detects frock |
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| CN215677461U true CN215677461U (en) | 2022-01-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116465557A (en) * | 2023-03-16 | 2023-07-21 | 中国第一汽车股份有限公司 | A sealing test tool and design method |
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2021
- 2021-07-27 CN CN202121714730.XU patent/CN215677461U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116465557A (en) * | 2023-03-16 | 2023-07-21 | 中国第一汽车股份有限公司 | A sealing test tool and design method |
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